Title of Invention	CLAMPING ARRANGEMENT FOR CLAMPING AND REMOVING A COMPONENT IN A WEAVING MACHINE AND METHODS THEROF
Abstract	A clamping arrangement for clamping a component (2, 79; 80) onto a holder (3; 79) in a weaving machine, comprising a clamping element (8, 82, 58, 68) a screw elements (11, 83,105), wherein that clamping arrangement (1) comprises a positioning slot (9, 16, 81, 43, 46, 57, 66, 67) which is provided in the longitudinal direction (47) of the clamping arrangement (1) in the clamping groove (14, 86) of the holder (3; 79). A method for clamping a component (2, 79; 80) onto a holder (3; 79) in a weaving machine. A weaving machine which makes use of such a clamping arrangement (1) and for implementing such a method.

Title of Invention

CLAMPING ARRANGEMENT FOR CLAMPING AND REMOVING A COMPONENT IN A WEAVING MACHINE AND METHODS THEROF

Abstract

A clamping arrangement for clamping a component (2, 79; 80) onto a holder (3; 79) in a weaving machine, comprising a clamping element (8, 82, 58, 68) a screw elements (11, 83,105), wherein that clamping arrangement (1) comprises a positioning slot (9, 16, 81, 43, 46, 57, 66, 67) which is provided in the longitudinal direction (47) of the clamping arrangement (1) in the clamping groove (14, 86) of the holder (3; 79). A method for clamping a component (2, 79; 80) onto a holder (3; 79) in a weaving machine. A weaving machine which makes use of such a clamping arrangement (1) and for implementing such a method.

Full Text	The invention relates to a clamping arrangement for clamping a com- ponent onto a holder in a weaving machine, more particularly to a clamping arrangement which comprises a clamping element, fittable into a clamping groove, and screw elements, wherein the clamping element comprises a first clamping surface and a second clamping sur- face, placed opposite each other, wherein the holder comprises a clamping groove which extends in the longitudinal direction of the clamping arrangement and comprises a first clamping surface and a second clamping surface, placed opposite each other, wherein the component comprises a clamping tooth which extends in the longitudi- nal direction of the clamping arrangement and, when the component is fitted onto the holder, reaches into the clamping groove, which latter comprises a first clamping surface that can cooperate with a clamping surface of the clamping element and further comprises a second clamping surface that is placed opposite the first clamping surface and that can cooperate with a clamping surface of the clamping groove, wherein the screw elements can move the clamping element up to the component in order to clamp the component onto the holder. Weaving machines are known in which a number of components are fastened to a holder and are removed from a holder. Such components are, for example, a reed, auxiliary blowers or main blowers which are fitted onto a holder of the sley, or a cloth support or temple, which are fitted onto a holder of the frame of the weaving machine. A cloth sup- port and temples are elongated components which are provided in de- pendence on the chosen cloth to be woven. The direct clamping of components with a bolt joint onto a holder which is arranged on the frame of the weaving machine is known from, for example, US 3 800 835. In this embodiment, the load is principally ab- sorbed by the bolt joint. The clamping arrangement is subject to a large load during the weaving and can be damaged during the fitting of com- ponents onto the holder or during their removal. From EP 395 132, it is known to use a clamping element in the shape of a dovetail for the removable fitting of an auxiliary blower onto a sley. This offers the advantage that, if the clamping element becomes worn, for example as a result of the frequent fitting or removal or as a result of the large loads to which the clamping element is exposed, the clamping element can easily be replaced. The dovetail joint also offers larger clamping surfaces, whereby high pressures are prevented and a better connection is assured. Moreover, the clamping element can be dis- placed in the holder in a continuously variable manner in the longitudi- nal direction, so that an auxiliary blower can be positioned in a manner which is tailored to the cloth to be woven. Since the clamping element is located beneath the support of the auxiliary blower, the bolt for clamping the auxiliary blower onto the sley is screwed into the clamping element. An auxiliary blower comprises a narrow support and a clamp- ing element of, for example, two cm length and requires only one bolt. Elongated components such as a temple or a cloth support require, however, that a plurality of bolts, distributed over the longitudinal direc- tion of the component, are fitted into the clamping element. Since the clamping element needs to be arranged beneath these components, it is not easy to screw a plurality of bolts into such a clamping element. It is known from FR 2345610, more particularly as represented in figure 3, to firstly fit the removable clamping element into a holder, then to tilt the component to be fastened between the clamping element and the holder, and then to fit the bolts which cooperate with the clamping ele- ment to fasten the component to the holder. This offers the advantage holder. This offers the advantage that the clamping element remains held in a well-defined angular position in the positioning slot, whereby the openings in the clamping element for the reception of the bolts, for example, remain held in a specific angular position, for example remain held in a roughly vertical position. According to one embodiment, the clamping arrangement comprises a positioning slot which is provided in the clamping groove of the holder in the longitudinal direction of the clamping arrangement and comprises at least one surface for guiding the clamping element as the clamping element is transversely fitted into or removed from the positioning slot. This offers the advantage that the clamping element can comfortably be fitted transversely into the positioning slot or transversely removed from the positioning slot. The clamping element can thereby, in fact, be freely removed from a frame of the weaving machine, so that the ele- ments placed to the left or right of the clamping arrangement do not have to be removed. This is particularly advantageous in a weaving machine which is already provided with elements to perform a specific function during weaving. According to one embodiment, the clamping arrangement comprises a surface of the positioning slot and a clamping surface of the clamping groove of the holder for guiding the clamping element as the clamping element is transversely fitted into or removed from the positioning slot. This allows the clamping element to be held in a well-defined angular position while it is fitted into the positioning slot, so that, for example, the openings in the clamping element for the reception of the screw elements remain in a specific angular position, for example remain roughly vertical during the fitting and also after the fitting. The surface of the positioning slot and the clamping surface of the clamping groove are arranged roughly parallel or at an angle, for example, so that the transverse fitting or removal of the clamping element is not hindered. According to a following embodiment, the positioning slot comprises surfaces which can cooperate with corresponding surfaces of a clamp- ing element to align a clamping element, arranged in the positioning slot, with respect to the axis of the screw elements which can be fitted through openings in the component. This embodiment offers the advan- tage that the openings in the clamping element are perfectly aligned for the reception of the screw elements with respect to the screw elements to be fitted. Particularly where a large number of screw elements are fitted, this ensures a certain time gain whenever a component is fitted onto or removed from the holder. According to a preferred embodiment, the cross section of the clamping element is a hexagon. This clamping element is simple to produce, comprises at the top the trapezium shape suitable for the clamping ef- fect, comprises two parallel surfaces suitable for guiding the clamping element as it is fitted into the positioning slot, and comprises at the bot- tom likewise a trapezium shape suitable for holding the clamping ele- ment in the positioning slot and for aligning the clamping element in the positioning slot with respect to the axis of the screw elements to be fit- ted. According to one embodiment, a method for clamping a component onto a holder in a weaving machine, using a clamping arrangement ac- cording to the invention, is implemented as follows: the clamping ele- ment is fitted transversely into a positioning slot and then the compo- nent and the screw elements are fitted, whereupon the screw elements, through openings in the component, can cooperate with the clamping element to clamp the component onto the holder. The transverse fitting of the clamping element onto the holder is particularly advantageous with respect to the sideways insertion of the clamping element into the holder if the clamping element has to be fitted onto a weaving machine which is already provided with elements placed to the left or right of the clamping arrangement, since the clamping element can then be fitted into the frame of the weaving machine without hindrance by elements placed alongside the clamping element. According to one embodiment, a method for removing a component arranged on a holder in a weaving machine, using a clamping ar- rangement according to the invention, is implemented as follows: the screw elements cooperating with the clamping element and the com- ponent through openings in the component are removed, and then the clamping element is removed transversely from the positioning slot. The screw elements are here loosened prior to the removal and are preferably removed together with the component. The transverse re- moval of the clamping element from the holder is particularly advanta- geous with respect to the sideways withdrawal of the clamping element from the holder if the clamping element has to be removed from a weaving machine which is already provided with elements placed to the left or right of the clamping arrangement, since the clamping element can then be removed from the frame of the weaving machine without hindrance by elements placed alongside the clamping element. The invention additionally relates to a weaving machine which makes use of a clamping arrangement according to the invention and which is suitable for implementing a method according to the invention. Further characteristics and advantages of the invention emerge from the following description of the illustrative embodiments represented in the drawings and from the subclaims, wherein: figure 1 shows a side view of a clamping arrangement according to an invention; figure 2 shows a perspective representation of an embodiment accord- ing to figure 1; figure 3 shows schematically a detail from an embodiment according to figure 1 in the clamped state; figure 4 shows schematically a detail from an embodiment according to figure 1 in the non-clamped state; figure 5 shows schematically a detail from the embodiment according to figure 3 without the component; figure 6 shows a perspective representation of an embodiment accord- ing to figure 1; figure 7 shows a side view of a variant embodiment of a clamping ar- rangement according to the invention; figures 8 to 20 show schematically different variant embodiments of a clamping arrangement according to the invention. In figure 1, a clamping arrangement 1 according to the invention for clamping a component 2 for a weaving machine onto a holder 3 is rep- resented schematically. The holder 3 is in turn fastened to the frame of a weaving machine. The component 2 as represented in figure 1 con- cerns a cloth support. Such a cloth support is provided to support the cloth and comprises, inter alia, profiles 28 and 29. The elongated com- ponent 2 extends over the width of the weaving machine, that is to say, for example, over a length of more than two meters. A perspective view of the embodiment as represented in figures 1 to 5 is represented in figure 2. Here a large number of screwing elements 11, distributed in the longitudinal direction 47 of the component 2, can clearly be seen. The screw elements 11 are here formed by bolts. In the state as represented in figures 1 and 3, the component 2 is clamped in the holder 3 by means of the clamping arrangement 1. The clamping arrangement 1 comprises a clamping element 8 of hexagonal cross section with internally threaded openings 23 in which there are screwed screw elements 11, which, in the represented illustrative em- bodiment, are fitted roughly vertically through openings 12 in the com- ponent 2. A number of screw elements 11, distributed in the longitudi- nal direction 47 of the clamping arrangement 1, are provided, for ex- ample one bolt every ten cm. For a component 2 of more than two me- ters, this gives rise to a clamping arrangement 1 with more than twenty screw elements 11. Through the tightening of the screw elements 11, the clamping element 8, as represented in figure 1, is clamped with the obliquely arranged clamping surface 9 against the corresponding clamping surface 5 of the clamping tooth 4 of the component 2 and with the obliquely arranged clamping surface 10 against the corresponding clamping surface 6 of the holder 3. As a result, the obliquely arranged clamping surface 13 of the clamping tooth 4 of the component 2 is clamped against the corresponding clamping surface 15 of the clamp- ing groove 14 of the holder 3. The clamping element 8 further com- prises a surface 7 that is directed toward the component 2. The clamp- ing tooth 4 of the component 2 forms together with the clamping ele- ment 8 a wedge of roughly trapezoidal section which is clamped into the clamping groove 14 of corresponding roughly trapezoidal section and thus forms a dovetail joint, whereby the, in the represented illustra- tive embodiment, roughly horizontal fastening surfaces 26, 27 of the component 2 are clamped onto the corresponding, in the represented illustrative embodiment, roughly horizontal supporting surfaces 24, 25 of the holder 3. In this way, the component 2 is clamped firmly onto the holder 3 and can offer resistance to the high load to which this compo- nent 2 is exposed. As represented in figures 1 to 5, in the clamping groove 14 of the holder 3 there is provided a positioning slot 16. According to this illus- trative embodiment, the positioning slot 16 comprises a roughly trape- zoidal cross section formed by surfaces 17, 18 and 19, which respec- tively can cooperate with the lowermost surfaces 20, 21 and 22 of the hexagonal clamping element 8. Before the fitting or after the removal of the screw elements 11, as represented in figure 4, the clamping ele- ment 8 is held in this positioning slot 16 under the influence of gravity. In this non-clamped state, wherein the clamping element 8 is held in the positioning slot 16, there is a secure play present between the clamping surface 9 of the clamping element 8 and the clamping surface 5 of the clamping tooth 4 of the component 2. The clamping tooth 4 of the component 2 can here be fitted into the clamping groove 14of the holder 3 or removed therefrom not hindered. For the illustrative em- bodiment represented in figures 1 to 5, this can be done by moving the clamping tooth 4 of the component 2 roughly in the transverse direction 48 into or out of the clamping groove 14. That is to say roughly parallel with the obliquely arranged surfaces 5 and 13 of the clamping tooth 4 and with the obliquely arranged surface 9 of the clamping piece 8 and the obliquely arranged surface 15 of the clamping groove 14. In the represented illustrative embodiment, the clamping surfaces 5, 13, 9 and 15 respectively are arranged at an angle of roughly 60° with re- spect to the supporting surfaces 24, 25 of the holder 3, which, in the represented embodiment, are arranged horizontally. The created play between the clamping surface 9 of the clamping element 8 and the clamping surface 5 of the clamping tooth 4 of the component 2, as rep- resented in figure 4, is also advantageous, however, when the compo- nent 2 is fitted by sliding the clamping tooth 4 in the longitudinal direc- tion 47 into the clamping groove 14 of the holder 3. This method cannot however be used if, as represented in figure 6, on both sides of the holder 3 elements 106 of the weaving machine are provided, which prevent the component 2 from being fitted onto the holder 3 in the lon- gitudinal direction 47. The hexagonal clamping element 8 of the illustrative embodiment as represented in figures 1 to 5 rests under the influence of gravity in the non-clamped state, as represented in figure 4, with the horizontal sur- face 21 on the horizontal surface 18 formed by the base of the position- ing slot 16. Moreover, the oblique surfaces 17 and 19 of the positioning slot 16, which are arranged in accordance with the oblique surfaces 20 and 22 of the clamping element at an angle of roughly 60° with respect to the horizontal supporting surfaces 24, 25 of the holder, prevent the clamping element 8 from being able to tilt or the clamping element 8 from shifting significantly transversely in the direction of the cloth. Hence the openings 23 of the clamping element 8 remain, even in the non-clamped state as represented in figure 4, assuredly arranged in a roughly angular position. Moreover, in the represented illustrative em- bodiment, the trapezoidal cross section of the positioning slot 16, which is roughly consistent with the trapezoidal shape of the bottom half of the hexagonal cross section of the clamping element 8, ensures that the clamping element 8, and thus the openings 23 provided therein, are aligned with respect to the openings 12 in the holder 2 in which the screw elements 11 are arranged with sufficient play. The clamping element 8 is not thereby hindered when it is moved, by the screwing on of the screw elements 11, from a non-clamped state, as represented in figure 4, to a clamped state, as represented in figures 1 and 3. The clamping element 8 here continues to maintain its orientation. The hexagonal clamping element 8 as represented in figures 1 to 5 can be moved in the transverse direction 49, roughly parallel with the oblique surface 19 of the positioning slot 16, that is to say at an angle of roughly 60° with respect to the horizontal supporting surfaces 24, 25 of the holder 3, into or out of the positioning slot 16, before the fitting or after the removal of the component 2, which latter case is represented in figure 5. The oblique surface 22 of the clamping element 8 can here be guided by the corresponding oblique guide surface 19 of the posi- tioning slot 16, so that the clamping element 8, when fitted into the po- sitioning slot 16, moves under the influence of gravity obliquely down- ward until the horizontal surface 21 of the clamping element 8 rests on the horizontal surface 18 of the positioning slot 16. During this move- ment, the clamping surface 6 of the clamping groove 14, which is ar- ranged roughly parallel to the oblique guide surface 19 of the position- ing slot 16, ensures that the clamping element 8 cannot tilt as it is intro- duced into the positioning slot 16, since the surface 6 and the guide surface 19, which are arranged roughly parallel with each other, re- spectively cooperate with the clamping surface 10 and the surface 22, which clamping surfaces are arranged roughly parallel with each other. Hence, in the represented illustrative embodiment, the openings 23 in the clamping element 8 assuredly continue to be arranged roughly ver- tically, even during fitting into the positioning slot 16. The presence of the obliquely arranged guide surface 19 is likewise advantageous in the removal of the elongated clamping element 8 from the positioning slot 16 in the transverse direction 49, since, in the obliquely upward move- ment, the clamping element 8 is supported and guided by the guide surface 19. As represented in figure 1, a second component 32 is arranged onto the component 2. This second component 32 is, for example, a so- called temple platform that can be fastened close to a temple (not rep- resented). Such a component 32 has a length of roughly ten cm up to fifty cm and is fastened with at least two bolts 31. The second compo- nent 32 is fastened to the component 2 by means of a known clamping arrangement 30. The second component 32 is provided with openings 37, in which bolts 31 are fitted which can cooperate with internally threaded openings 40 in the mounting element 38. Through the tighten- ing of the bolts 31, the mounting element 38 introduced into the T- groove 39 is clamped against the horizontal clamping surfaces 35 and 36 of the T-groove 39, whereby the second component 32 is clamped onto the horizontal supporting surfaces 33, 34 of the component 2. It is clear that the mounting element 38 can easily be introduced in the lon- gitudinal direction 47 into the T-groove 39. The horizontal clamping sur- faces 35, 36 of the known clamping arrangement 30 have a signifi- cantly smaller surface than the clamping surfaces 6, 15 of the clamping arrangement 1 according to the invention, whereby the clamping ar- rangement 1 according to the invention can be exposed to high loads without risk of high pressures or damage to the clamping surfaces of the clamping arrangement 1, not even if the clamping arrangement 1 is fitted and removed frequently. The horizontal arrangement of clamping surfaces 35, 36 of the known clamping arrangement 30 is also less suited to offering resistance to loads in this horizontal direction. It is clear that the clamping arrangement 1 according to the invention posi- tions the component 2 clearly transversely on the holder 3, whilst in the known clamping arrangement 30 uncertainty exists as regards the transverse position of the second component 32 on the component 2 in the clamped state. In figure 7, a variant embodiment is represented, wherein two clamping arrangements 1, 78 according to the invention are used. The clamping arrangement 1 of figure 7 is used for the fastening of a component 79 to a holder 3 and is constructed similarly to the clamping arrangement 1 of figure 1. A second component 80 is likewise fastened with a clamp- ing arrangement 78 according to the invention to the component 79, which here additionally acts as the holder. The second component 80 forms the cover of a bar type temple, which comprises a temple bar 65 and, just like the component 79, extends in the longitudinal direction 47 of the holder 3 over roughly the full width of the weaving machine. The clamping arrangement 78 for clamping the second component 80 com- prises a clamping element 82 of hexagonal cross section with internally threaded openings 85 in which there are screwed screw elements 83, formed by bolts, which are fitted roughly vertically through openings 84 in the second component 80. A number of screw elements 83, distrib- uted over the length of the clamping arrangement 78, are provided, for example one screw element or bolt every twenty cm. For a component 80 of more than two meters, this thus gives rise to a clamping ar- rangement 78 with more than ten screw elements 83. Through the tightening of the screw elements 83, the clamping element 82, as rep- resented in figure 7, is clamped with the obliquely arranged clamping surface 93 against the corresponding clamping surface 92 of the clamping tooth 87 of the second component 80 and with the obliquely arranged clamping surface 91 against the corresponding clamping sur- face 90 of the component 79. As a result, the obliquely arranged clamp- ing surface 88 of the clamping tooth 87 of the second component 80 is clamped against the corresponding clamping surface 89 of the clamp- ing groove 86 of the component 79. The clamping tooth 87 of the sec- ond component 80 forms together with the clamping element 82 a wedge of roughly trapezoidal cross section, which is clamped into the clamping groove 87 of corresponding, roughly trapezoidal cross section and thus forms a dovetail joint, whereby the horizontal fastening sur- faces 100, 102 of the second component 80 are clamped onto the cor- responding horizontal supporting surfaces 101, 103 of the component 79. In this way, the second component 80 is firmly clamped onto the component 79 and can offer resistance to the high load to which this second component 80 is exposed. The positioning slot 81 and the associated clamping element 82 for the fastening of the second component 80 are shaped similarly to the cor- responding positioning slot 16 and the associated clamping element 8 for the fastening of the component 79. In the non-clamped state, for example after the removal of the screw elements 83, the surfaces 97, 98 and 99 of the positioning slot 81 cooperate with the correspondingly arranged surfaces 94, 95 and 96 of the clamping element 82, so that the clamping tooth 87 can be removed from the clamping groove 86 roughly in the transverse direction 48. In contrast to the clamping arrangement 1 for the fastening of the com- ponent 79 to the holder 3, the clamping element 82 cannot be removed from the clamping groove 86 in the transverse direction 49. Since the clamping groove 86 is less wide than the clamping groove 14, the clamping surface 89 of the clamping groove 86 forms an obstacle hereto. In order to enable the transverse removal and fitting of the clamping element 82, an obliquely arranged surface 104 has been pro- vided parallel to this clamping surface 89. According to this illustrative embodiment, the surface 104 and the clamping surface 89 are provided roughly at an angle of 60° in the direction 48 or 49 with respect to the horizontally arranged supporting surfaces 101, 103. It is thus possible to remove the clamping element 82 from the clamping groove 86 by first displacing the clamping element 82 roughly in the transverse direc- tion 49 until this displacement is prevented by the clamping surface 89, and then displacing the clamping element 82 roughly in the transverse direction 48, that is to say roughly parallel to the clamping surface 89 and the surface 104. In this embodiment, the component 79, in the light of a clamping arrangement according to the invention, can be referred to as the holder onto which the component 80 is clamped. According to a non-represented illustrative embodiment, the second component 80 can also however be a second component such as the second component 32 represented in figure 1, or another component that can be fastened to the component 79. In figure 8, a clamping arrangement 1 according to the invention is rep- resented, wherein the positioning slot 43 exhibits a triangular cross sec- tion. In the non-clamped state, as represented in figure 8, the clamping element 8 rests under the influence of gravity with the obliquely ar- ranged surfaces 20, 22 on the corresponding obliquely arranged sur- faces 41, 42 of the positioning slot 43. The surfaces 41, 42 of the posi- tioning slot 43 are arranged such that they align the clamping element 8 fitted in the positioning slot 43 perfectly with respect to the screw ele- ments 11. That is to say that, in this embodiment, the roughly vertically arranged axes 50 of the openings 12 in the component 2, the openings 23 in the clamping element 8 and the screw elements 11 coincide. As a result, the screw elements 11, which are fitted through the openings 12 in the component 2, are perfectly aligned to be screwable into the openings 23 of the clamping element 8. This makes it possible to screw a large number of bolts 11 rapidly into the clamping element 8, or pos- sibly to automatize the fitting of the screw elements 11. In figure 9, a clamping arrangement 1 according to the invention is rep- resented, wherein the positioning slot 46 exhibits a cross section in the form of a polygon. In the non-clamped state, as represented in figure 9, the clamping element 8 rests under the influence of gravity with the obliquely arranged surfaces 20, 22 on the corresponding obliquely ar- ranged surfaces 44, 45 of the positioning slot 46. The surfaces 44, 45 of the positioning slot 46 are arranged such that they align the clamping element 8 fitted in the positioning slot 46 perfectly with respect to the screw elements 11. In figure 10, a clamping arrangement 1 according to the invention is represented, having a positioning slot 57 of triangular cross section analogous to the illustrative embodiment as represented in figure 5. The clamping element 58 here exhibits a pentagonal cross section. In accordance with the illustrative embodiment as represented in figure 5, the obliquely arranged surfaces 51, 52 of the positioning slot 57 coop- erate with correspondingly obliquely arranged surfaces 53, 54 to align the fitted clamping element 58 perfectly with respect to the screw ele- ments 11. Furthermore, in the clamped state, the clamping surface 56 of the clamping groove 14 of the holder 3 and the clamping surface 55 of the component 2 cooperate with the corresponding clamping sur- faces 59, 60 of the clamping element 58. The obliquely arranged sur- face 52 of the positioning slot 57 is suitable for guiding the correspond- ing obliquely arranged surface 54 of the pentagonal clamping element 58 as this clamping element 58 is transversely fitted into or removed from the positioning slot 57. Moreover, the surface 52 of the positioning slot 57 for guiding the clamping element 58 and the clamping surface 56 of the clamping groove 14 of the holder 3 form an acute angle which, as can be seen in figure 10, widens in the direction of the open- ing along which the clamping element 58 can be moved transversely in the positioning slot 57. The clamping element 58 can hence comforta- bly be moved transversely into and out of the positioning slot 57. As the clamping element 58 is fitted into the positioning slot 57, the obliquely arranged surface 52 of the positioning slot 57, together with the obliquely arranged clamping surface 56 of the clamping groove 14, en- sures that the clamping element 58 cannot tilt, since the surface 52 and the clamping surface 56 respectively cooperate with corresponding sur- faces 54 and 59 of the clamping element 58. It can thereby be assured that, during the fitting of the clamping element 58, the openings 23 in the clamping element 58 maintain their roughly angular position. In figure 11, a variant embodiment of the clamping arrangement 1 ac- cording to the invention is represented. The cross section of the posi- tioning slot 66 is a polygon formed by a vertically arranged surface 61, a horizontally arranged surface 63 and two obliquely arranged surfaces 62 and 64. Analogously to the illustrative embodiment as represented in figure 5, the two obliquely arranged surfaces 62, 64 of the positioning slot 66 cooperate with two correspondingly obliquely arranged surfaces of the hexagonal clamping element 8 to align the clamping element 8 fitted in the positioning slot 66 perfectly with respect to the positioning slot 66 and the screw elements 11. In figures 12 and 13, a further variant embodiment of the clamping ar- rangement 1 according to the invention is represented, having a trape- zoidal clamping element 68 According to this embodiment, the clamp- ing arrangement 1 comprises screw elements 105 comprising a threaded rod 107 which can cooperate with a nut 108. This clamping element 68 likewise comprises two obliquely arranged clamping sur- faces 73, 75, which respectively cooperate with a clamping surface 69 of the holder 3 and a clamping surface 77 of the component 2. The clamping element 68 additionally comprises a surface 76 directed to- ward the component 2. In the clamping groove 14 of the holder 3 there is likewise provided a positioning slot 67. This positioning slot 67 is formed by the vertically arranged surface 70, the horizontally arranged surface 71 and the obliquely arranged surface 72. As represented in figure 13, the clamping element 68 can be fitted transversely into the positioning slot 67, where in the non-clamped state, under the influence of gravity, it rests with the horizontal surface 74 on the corresponding horizontal surface 71 of the positioning slot 67. The surfaces 70 and 72 delimit the positioning slot 67 such that the fitted clamping element 68 is positioned roughly correctly with respect to the threaded rods 107 to be fitted. The threaded rods 107 are screwed through the openings 12 in the component 2 into the openings 23 in the clamping element 68. After this, the nuts 108 are screwed onto the threaded rods to move the clamping element 68 up to the component 2. It is also possible to secure the threaded rods 107 in the openings 23 in the clamping element 68, for example by gluing them in place or fixing them in some other way. The clamping element 68 can then, together with the threaded rods 107, be moved as a whole into and out of the positioning slot 67. According to one option, the component 2 can be provided with a slot extending in the longitudinal direction 47, instead of having separate openings 12 for each threaded rod 107. As repre- sented in figure 12, the clamping surface 109 of the clamping tooth 4 and the corresponding clamping surface 110 of the clamping groove 14 are, in this embodiment, arranged at a specific small angle to the verti- cal, which is advantageous for the clamping of the clamping tooth 4 in the clamping groove 14. According to a non-represented variant, in the embodiment of figure 12 the clamping surfaces 109 and 110 can also be arranged roughly vertically. In figure 14, a clamping arrangement 1 according to the invention is represented, having a positioning slot 117 of a cross section comprising a vertically arranged surface 119 and two obliquely arranged surfaces 111 and 112. The clamping element 118 here exhibits a quadrilateral cross section, more particularly a square cross section. Similarly to the illustrative embodiment of figure 8, the obliquely arranged surfaces 111, 112 of the positioning slot 117 cooperate with corresponding obliquely arranged surfaces 113, 114 of the clamping element 118, in order to align a fitted clamping element 118 perfectly with respect to the screw elements 11. Furthermore, in the clamped state, the clamping surface 116 of the clamping groove 14 of the holder 3 and the clamping surface 115 of the component 2 cooperate with the corresponding clamping surfaces 120, 121 of the clamping element 118. The obliquely arranged surface 112 of the positioning slot 117 is suitable for guiding the corre- sponding obliquely arranged surface 114 of the quadrilateral clamping element 118 as this clamping element 118 is transversely fitted into or removed from the positioning slot 117. Moreover, the surface 112 of the positioning slot 117 for guiding the clamping element 118 and the clamping surface 116 of the clamping groove 14 of the holder 3 are ar- ranged roughly parallel with each other. The clamping element 118 can hence comfortably be moved transversely into and out of the position- ing slot 117 and it is ensured that, during the fitting of the clamping element 118, the openings 23 in the clamping element 118 maintain their roughly angular position. It is clear that, instead of a square, any other quadrilateral whatsoever can be used as the clamping element. In figure 15, a variant embodiment of a clamping arrangement 1 ac- cording to the invention is represented in accordance with the illustra- tive embodiment as represented in figure 3. In figure 15, the openings 23 are not provided centrally in the hexagonal clamping element 8, but, in particular, these openings 23 are provided somewhat eccentrically. In figures 16 and 17, an embodiment of a clamping arrangement 1 ac- cording to the invention is represented in accordance with figures 3 and 5, the clamping arrangement 1 being represented in an angular position which is turned approximately 90° with respect to the angular position represented in figures 3 and 5. In figures 18 and 19, an embodiment of a clamping arrangement 1 ac- cording to the invention is represented in accordance with figures 3 and 5, the clamping arrangement 1 being represented in an angular position which is turned approximately 60° with respect to the angular position represented in figures 3 and 5. It is clear that non-represented variant embodiments are possible, wherein a clamping arrangement 1 has been turned through any other angle whatsoever, the clamping element 8 being able to be held in a clamping groove 16. In figure 20, a further variant embodiment of a clamping arrangement 1 according to the invention is represented in accordance with the em- bodiment as represented in figure 3, wherein the axis 50 of the screw elements 11 and the openings 122 in the component 2 and the open- ings 123 in the clamping element 8 are provided at an angle to the per- pendicular on the roughly horizontal surface 7 of the hexagonal clamp- ing element 8. It is clear that, according to a non-represented variant, the screw ele- ment 11 can be arranged both non-centrally, analogously to figure 15, and also at an angle, analogously to figure 20. Other combinations of clamping elements and associated positioning slots are, of course, possible. More particularly, in addition to clamping elements of trapezoidal, pentagonal and hexagonal cross section, clamping elements of some other cross section, for example heptago- nal, octagonal, square or any other polygon whatsoever, are also con- ceivable. A clamping element 8 of hexagonal cross section can be sim- ply and cheaply produced. It is clear that a pentagonal or hexagonal clamping element as repre- sented in figure 1 to 9 is particularly advantageous, since the openings 23 in the clamping element which are provided with an internal thread for the reception of the screw elements 11 exhibit approximately twice the length of the available openings 23 in the case of a trapezoidal clamping element with corresponding clamping surfaces. This ensures a better connection between the clamping element and the screw ele- ments. The clamping arrangement 1 according to the invention enables an elongated component 2 for a weaving machine to be clamped onto a holder 3 by first fitting the clamping element 8 transversely into a posi- tioning slot 16, then fitting the component 2 onto the holder 3, and then fitting the screw elements 11 through openings 12 in the component 2 so as to screw them into openings 23 of the clamping element 8. The clamping arrangement 1 according to the invention also allows an elongated component 2 for a weaving machine, which component is clamped on a holder 3, to be removed from this holder 3 by unscrewing the bolts 11 from the clamping element 8, then removing them through openings 12 in the component 2, then removing the component 2 from the holder 3, and then transversely removing the clamping element 8 from the positioning slot 16 and the holder 3. The screw elements 11, 83, 105 are not limited to the represented bolts or threaded rods but can likewise comprise other elements, for example hexagon socket bolts or screwed bushes. According to a non- represented variant, instead of separate openings 12 in the component, a slot extending in the longitudinal direction 47 can be provided. In figures 3 and 4 and in figures 8 to 13, the component 2 has been ar- ranged, for the sake of clarity, at a short distance from the holder 3. In these positions, in actual fact, the component 2 is supported on the holder 3 in a manner as represented in figure 1. The screw elements 11, 83, 105 can move with sufficient play in the openings 12, 84, 122, so that the screw elements can easily be screwed into the clamping element should the component 2 be arranged on the holder 3, more particularly should the component 2 be arranged in a position on the holder 3 which is approximately consistent with the clamping position of the component 2 on the holder 3. The weaving machine, the clamping arrangement for the clamping, and the methods according to the invention are not limited, of course, to the embodiments described by way of example and represented in the fig- ure, but can be realized within the scope of the invention according to different variants and according to different combinations of the afore- said represented embodiments according to the invention. WE CLAIM 1. A clamping arrangement for clamping a component (2, 79; 80) onto a holder (3, 79) of a weaving machine, comprising at least one clamping element (8, 82, 58, 68, 118) arrangable in a clamping groove (14, 86) of the holder (3, 79) and screw elements (11, 83, 105) for fixing said clamping element (8, 82, 58, 68, 118), characterized in that the clamping groove (14, 86) is provided with a positioning slot (16, 81, 43, 46, 57, 66, 67, 117) extending in a longitudinal direction of the clamping groove (14, 86) and comprising surfaces (41, 42, 44, 45, 51, 52, 62, 64, 111, 112) which can cooperate with corresponding surfaces (20, 22, 53, 54, 113, 114) of the at least one clamping element (8, 82, 58, 118) to align said clamping element (8, 82, 58, 118), arranged in the positioning slot (43, 46, 57, 66, 117), with respect to the axis (50) of the screw elements (11, 83,105) which can be fitted through openings (12,122) in the component (2, 79, 80), while the screw elements (11, 83, 105) are loosend, which at least one clamping element (8, 82, 58, 68, 118) also has clamping surfaces one of which cooperating with the component (2, 79; 80) and one of which cooperating with the holder (3, 79) while the screw elements (11, 83,105) are tightened. 2. The clamping arrangement as claimed in claim 1, wherein the clamping element (8, 82, 58, 68, 118) comprises a first clamping surface (10, 91, 59, 73, 120) and a second clamping surface (9, 93, 60, 75, 121), placed opposite each other, wherein the holder (3; 79) comprises a clamping groove (14, 86) which extends in the longitudinal direction (47) of the clamping arrangement (1, 78) and comprises a first clamping surface (6, 90, 56, 69, 116) and a second clamping surface (15, 89), placed opposite each other, wherein the component (2, 79; 80) comprises a clamping tooth (4, 87) which extends in the longitudinal direction (47) of the clamping arrangement (1, 78) and, when the component (2, 79; 80) is fitted onto the holder (3; 79), reaches into the clamping groove (14, 86), which latter comprises a first clamping surface (5, 92, 55, 77, 115) that can cooperate with a clamping surface (9, 93, 60, 75, 121) of the clamping element (8, 82, 58, 68, 117) and further comprises a second clamping surface (13, 88, 109) that is placed opposite the first clamping surface (5, 92, 55, 77, 115) and that can cooperate with a clamping surface (15, 89, 110) of the clamping groove (14, 86), wherein the screw elements (11, 83, 105) can move the clamping element (8, 82, 58, 68, 118) up to the component (2, 79; 80) in order to clamp the component (2, 79; 80) onto the holder (3; 79). 3. The clamping arrangement as claimed in one of claims 1 or 2, wherein the positioning slot (16, 81, 43, 46, 57, 66, 67, 117) comprises surfaces (17, 18, 19, 97, 98, 99, 41, 42, 44, 45, 51, 52, 62, 64, 70, 71, 72, 111, 112) which can cooperate with corresponding surfaces of the at least one clamping element (20, 21, 22, 94, 95, 96, 53, 54, 74, 113, 114) to hold the clamping element (8, 82, 58, 68, 118) arranged in the positioning slot (16, 81, 43, 46, 57, 66, 67, 117) in an angular position before the component (2, 79; 80) is clamped onto the holder (3; 79) and/or after the component (2, 79; 80) has been removed from the holder (3; 79). 4. The clamping arrangement as claimed in one of claims 1 to 3, wherein the positioning slot (16, 81, 43, 46, 57, 66, 67, 117) comprises at least one surface (19, 99, 45, 57, 72,112) for guiding the clamping element (8, 82, 58, 68, 118) as'the clamping element (8, 82, 58, 68, 118) is transversely fitted into or removed from the positioning slot (16, 81, 43, 46, 57, 66, 67,117). 5. The clamping arrangement as claimed in one of claims 1 to 4, wherein the clamping arrangement (1, 78) further comprises a surface (19, 99,45, 57, 72, 112) of the positioning slot (16, 81, 43, 46, 57, 66, 67, 117) and a clamping surface (6, 90, 56, 69, 116) of the clamping groove (14, 86) of the holder (3; 79) for guiding the clamping element (8, 82, 58, 68, 118) as the clamping element (8, 82, 58, 68, 118) is transversely fitted into or removed from the positioning slot (16, 81, 43,46, 57, 66, 67,117). 6. The clamping arrangement as claimed in claim 5, wherein the surface (19, 99, 45, 57, 72, 112) of the positioning slot (16, 81, 43, 46, 57, 66, 67, 117) and the clamping surface (6, 90, 56, 69,116) of the clamping groove (14, 86) of the holder (3; 79) for guiding the clamping element (8, 82, 58, 68,118) are placed roughly parallel to each other. 7. The clamping arrangement as claimed in claim 5, wherein the surface (52) of the positioning slot (57) for guiding the clamping element (58) and the clamping surface (56) of the clamping groove (14, 86) of the holder (3; 79) placed at an acute angle to each other, which widens in the direction of the opening of where the clamping element (58) can be fitted transversely into the positioning slot (57). 8. The clamping arrangement as claimed in one of claims 1 to 7, wherein the cross section of the clamping element (8, 82, 58, 68,118) is a polygon. 9. The clamping arrangement as claimed in one of claims 1 to 8, wherein the cross section of the clamping element (8, 82) is a hexagon. 10.The clamping arrangement as claimed in one of claims 1 to 9, wherein clamping arrangement (1, 78) comprises at least two screw elements (11, 83,105). 11.The clamping arrangement as claimed in one of claims 1 to 10, wherein the clamping arrangement (1, 78) comprises a clamping element (8, 82, 58, 68,119), fittable into a clamping groove (14, 86), and screw elements (11, 83, 105) and in that the clamping arrangement (1, 78) comprises a positioning slot (16, 81, 43, 46, 57, 66, 67, 117) which is provided in the clamping groove (14, 86) of the holder 3; 79) in the longitudinal direction (47) of the clamping arrangement (1, 78) and comprises surfaces (17,18, 19, 97, 98, 99, 41, 42, 44, 45, 51, 52, 62, 64, 70, 71, 72, 111, 112) which can cooperate with the clamping element (8, 82, 58, 68, 118) to hold a clamping element (8, 82, 58, 68, 118), arranged in the positioning slot (16, 81,43, 46, 57, 66, 67, 117), before the component (2, 79; 80) is clamped onto the holder (3; 79) and/or after the component (2, 79; 80) has been removed from the holder (3; 79). 12. Use of a clamping arrangement (1, 78) as claimed in one of claims 1 to 11 in a weaving machine having a holder (3, 79), wherein the clamping arrangement (1, 78) comprises at least one clamping element (8, 82, 58, 68, 118) and screw elements (11, 83, 105), and wherein for clamping a component (2, 79; 80) onto the holder (3; 79) the clamping element (8, 82, 58, 68, 118) is fitted transversely into a positioning slot (16, 81, 43, 46, 57, 66, 67,117), and the component (2, 79; 80) and the screw elements (11, 83, 105) are then fitted, whereupon the screw elements (11, 83, 105), through openings (12, 122) in the component (2, 79; 80), can cooperate with the clamping element (8, 82, 58, 68, 118) to clamp the component (2, 79; 80) onto the holder (3; 79), and/or wherein for removing a component (2, 79; 80) that is arranged on the holder (3; 79) in the weaving machine, the screw elements (11, 83,105) cooperating with the clamping element (8, 82, 58, 68, 118) and the component (2, 79; 80) through openings (12, 122) in the component (2, 79; 80) are removed, and the clamping element (8, 82, 58, 68, 118) is then removed transversely from the positioning slot (16, 81, 43, 46, 57, 66, 67, 117). 13. A weaving machine wherein the weaving machine comprises a clamping arrangement (1, 78) as claimed in one of claims 1 to 11. ABSTRACT TITLE: CLAMPING ARRANGEMENT FOR CLAMPING AND REMOVING A COMPONENT IN A WEAVING MACHINE AND METHODS THEREOF A clamping arrangement for clamping a component (2, 79; 80) onto a holder (3; 79) in a weaving machine, comprising a clamping element (8, 82, 58, 68) a screw elements (11, 83,105), wherein that clamping arrangement (1) comprises a positioning slot (9, 16, 81, 43, 46, 57, 66, 67) which is provided in the longitudinal direction (47) of the clamping arrangement (1) in the clamping groove (14, 86) of the holder (3; 79). A method for clamping a component (2, 79; 80) onto a holder (3; 79) in a weaving machine. A weaving machine which makes use of such a clamping arrangement (1) and for implementing such a method.

Full Text

The invention relates to a clamping arrangement for clamping a com-
ponent onto a holder in a weaving machine, more particularly to a
clamping arrangement which comprises a clamping element, fittable
into a clamping groove, and screw elements, wherein the clamping
element comprises a first clamping surface and a second clamping sur-
face, placed opposite each other, wherein the holder comprises a
clamping groove which extends in the longitudinal direction of the
clamping arrangement and comprises a first clamping surface and a
second clamping surface, placed opposite each other, wherein the
component comprises a clamping tooth which extends in the longitudi-
nal direction of the clamping arrangement and, when the component is
fitted onto the holder, reaches into the clamping groove, which latter
comprises a first clamping surface that can cooperate with a clamping
surface of the clamping element and further comprises a second
clamping surface that is placed opposite the first clamping surface and
that can cooperate with a clamping surface of the clamping groove,
wherein the screw elements can move the clamping element up to the
component in order to clamp the component onto the holder.
Weaving machines are known in which a number of components are
fastened to a holder and are removed from a holder. Such components
are, for example, a reed, auxiliary blowers or main blowers which are
fitted onto a holder of the sley, or a cloth support or temple, which are
fitted onto a holder of the frame of the weaving machine. A cloth sup-
port and temples are elongated components which are provided in de-
pendence on the chosen cloth to be woven.

The direct clamping of components with a bolt joint onto a holder which
is arranged on the frame of the weaving machine is known from, for
example, US 3 800 835. In this embodiment, the load is principally ab-
sorbed by the bolt joint. The clamping arrangement is subject to a large
load during the weaving and can be damaged during the fitting of com-
ponents onto the holder or during their removal.
From EP 395 132, it is known to use a clamping element in the shape
of a dovetail for the removable fitting of an auxiliary blower onto a sley.
This offers the advantage that, if the clamping element becomes worn,
for example as a result of the frequent fitting or removal or as a result of
the large loads to which the clamping element is exposed, the clamping
element can easily be replaced. The dovetail joint also offers larger
clamping surfaces, whereby high pressures are prevented and a better
connection is assured. Moreover, the clamping element can be dis-
placed in the holder in a continuously variable manner in the longitudi-
nal direction, so that an auxiliary blower can be positioned in a manner
which is tailored to the cloth to be woven. Since the clamping element
is located beneath the support of the auxiliary blower, the bolt for
clamping the auxiliary blower onto the sley is screwed into the clamping
element. An auxiliary blower comprises a narrow support and a clamp-
ing element of, for example, two cm length and requires only one bolt.
Elongated components such as a temple or a cloth support require,
however, that a plurality of bolts, distributed over the longitudinal direc-
tion of the component, are fitted into the clamping element. Since the
clamping element needs to be arranged beneath these components, it
is not easy to screw a plurality of bolts into such a clamping element.
It is known from FR 2345610, more particularly as represented in figure
3, to firstly fit the removable clamping element into a holder, then to tilt
the component to be fastened between the clamping element and the
holder, and then to fit the bolts which cooperate with the clamping ele-
ment to fasten the component to the holder. This offers the advantage

holder. This offers the advantage that the clamping element remains
held in a well-defined angular position in the positioning slot, whereby
the openings in the clamping element for the reception of the bolts, for
example, remain held in a specific angular position, for example remain
held in a roughly vertical position.
According to one embodiment, the clamping arrangement comprises a
positioning slot which is provided in the clamping groove of the holder
in the longitudinal direction of the clamping arrangement and comprises
at least one surface for guiding the clamping element as the clamping
element is transversely fitted into or removed from the positioning slot.
This offers the advantage that the clamping element can comfortably
be fitted transversely into the positioning slot or transversely removed
from the positioning slot. The clamping element can thereby, in fact, be
freely removed from a frame of the weaving machine, so that the ele-
ments placed to the left or right of the clamping arrangement do not
have to be removed. This is particularly advantageous in a weaving
machine which is already provided with elements to perform a specific
function during weaving.
According to one embodiment, the clamping arrangement comprises a
surface of the positioning slot and a clamping surface of the clamping
groove of the holder for guiding the clamping element as the clamping
element is transversely fitted into or removed from the positioning slot.
This allows the clamping element to be held in a well-defined angular
position while it is fitted into the positioning slot, so that, for example,
the openings in the clamping element for the reception of the screw
elements remain in a specific angular position, for example remain
roughly vertical during the fitting and also after the fitting. The surface
of the positioning slot and the clamping surface of the clamping groove
are arranged roughly parallel or at an angle, for example, so that the
transverse fitting or removal of the clamping element is not hindered.

According to a following embodiment, the positioning slot comprises
surfaces which can cooperate with corresponding surfaces of a clamp-
ing element to align a clamping element, arranged in the positioning
slot, with respect to the axis of the screw elements which can be fitted
through openings in the component. This embodiment offers the advan-
tage that the openings in the clamping element are perfectly aligned for
the reception of the screw elements with respect to the screw elements
to be fitted. Particularly where a large number of screw elements are
fitted, this ensures a certain time gain whenever a component is fitted
onto or removed from the holder.
According to a preferred embodiment, the cross section of the clamping
element is a hexagon. This clamping element is simple to produce,
comprises at the top the trapezium shape suitable for the clamping ef-
fect, comprises two parallel surfaces suitable for guiding the clamping
element as it is fitted into the positioning slot, and comprises at the bot-
tom likewise a trapezium shape suitable for holding the clamping ele-
ment in the positioning slot and for aligning the clamping element in the
positioning slot with respect to the axis of the screw elements to be fit-
ted.
According to one embodiment, a method for clamping a component
onto a holder in a weaving machine, using a clamping arrangement ac-
cording to the invention, is implemented as follows: the clamping ele-
ment is fitted transversely into a positioning slot and then the compo-
nent and the screw elements are fitted, whereupon the screw elements,
through openings in the component, can cooperate with the clamping
element to clamp the component onto the holder. The transverse fitting
of the clamping element onto the holder is particularly advantageous
with respect to the sideways insertion of the clamping element into the
holder if the clamping element has to be fitted onto a weaving machine
which is already provided with elements placed to the left or right of the
clamping arrangement, since the clamping element can then be fitted

into the frame of the weaving machine without hindrance by elements
placed alongside the clamping element.
According to one embodiment, a method for removing a component
arranged on a holder in a weaving machine, using a clamping ar-
rangement according to the invention, is implemented as follows: the
screw elements cooperating with the clamping element and the com-
ponent through openings in the component are removed, and then the
clamping element is removed transversely from the positioning slot.
The screw elements are here loosened prior to the removal and are
preferably removed together with the component. The transverse re-
moval of the clamping element from the holder is particularly advanta-
geous with respect to the sideways withdrawal of the clamping element
from the holder if the clamping element has to be removed from a
weaving machine which is already provided with elements placed to the
left or right of the clamping arrangement, since the clamping element
can then be removed from the frame of the weaving machine without
hindrance by elements placed alongside the clamping element.
The invention additionally relates to a weaving machine which makes
use of a clamping arrangement according to the invention and which is
suitable for implementing a method according to the invention.
Further characteristics and advantages of the invention emerge from
the following description of the illustrative embodiments represented in
the drawings and from the subclaims, wherein:
figure 1 shows a side view of a clamping arrangement according to an
invention;
figure 2 shows a perspective representation of an embodiment accord-
ing to figure 1;
figure 3 shows schematically a detail from an embodiment according to
figure 1 in the clamped state;

figure 4 shows schematically a detail from an embodiment according to
figure 1 in the non-clamped state;
figure 5 shows schematically a detail from the embodiment according to
figure 3 without the component;
figure 6 shows a perspective representation of an embodiment accord-
ing to figure 1;
figure 7 shows a side view of a variant embodiment of a clamping ar-
rangement according to the invention;
figures 8 to 20 show schematically different variant embodiments of a
clamping arrangement according to the invention.
In figure 1, a clamping arrangement 1 according to the invention for
clamping a component 2 for a weaving machine onto a holder 3 is rep-
resented schematically. The holder 3 is in turn fastened to the frame of
a weaving machine. The component 2 as represented in figure 1 con-
cerns a cloth support. Such a cloth support is provided to support the
cloth and comprises, inter alia, profiles 28 and 29. The elongated com-
ponent 2 extends over the width of the weaving machine, that is to say,
for example, over a length of more than two meters.
A perspective view of the embodiment as represented in figures 1 to 5
is represented in figure 2. Here a large number of screwing elements
11, distributed in the longitudinal direction 47 of the component 2, can
clearly be seen. The screw elements 11 are here formed by bolts.
In the state as represented in figures 1 and 3, the component 2 is
clamped in the holder 3 by means of the clamping arrangement 1. The
clamping arrangement 1 comprises a clamping element 8 of hexagonal
cross section with internally threaded openings 23 in which there are
screwed screw elements 11, which, in the represented illustrative em-
bodiment, are fitted roughly vertically through openings 12 in the com-
ponent 2. A number of screw elements 11, distributed in the longitudi-
nal direction 47 of the clamping arrangement 1, are provided, for ex-

ample one bolt every ten cm. For a component 2 of more than two me-
ters, this gives rise to a clamping arrangement 1 with more than twenty
screw elements 11. Through the tightening of the screw elements 11,
the clamping element 8, as represented in figure 1, is clamped with the
obliquely arranged clamping surface 9 against the corresponding
clamping surface 5 of the clamping tooth 4 of the component 2 and with
the obliquely arranged clamping surface 10 against the corresponding
clamping surface 6 of the holder 3. As a result, the obliquely arranged
clamping surface 13 of the clamping tooth 4 of the component 2 is
clamped against the corresponding clamping surface 15 of the clamp-
ing groove 14 of the holder 3. The clamping element 8 further com-
prises a surface 7 that is directed toward the component 2. The clamp-
ing tooth 4 of the component 2 forms together with the clamping ele-
ment 8 a wedge of roughly trapezoidal section which is clamped into
the clamping groove 14 of corresponding roughly trapezoidal section
and thus forms a dovetail joint, whereby the, in the represented illustra-
tive embodiment, roughly horizontal fastening surfaces 26, 27 of the
component 2 are clamped onto the corresponding, in the represented
illustrative embodiment, roughly horizontal supporting surfaces 24, 25
of the holder 3. In this way, the component 2 is clamped firmly onto the
holder 3 and can offer resistance to the high load to which this compo-
nent 2 is exposed.
As represented in figures 1 to 5, in the clamping groove 14 of the
holder 3 there is provided a positioning slot 16. According to this illus-
trative embodiment, the positioning slot 16 comprises a roughly trape-
zoidal cross section formed by surfaces 17, 18 and 19, which respec-
tively can cooperate with the lowermost surfaces 20, 21 and 22 of the
hexagonal clamping element 8. Before the fitting or after the removal of
the screw elements 11, as represented in figure 4, the clamping ele-
ment 8 is held in this positioning slot 16 under the influence of gravity.
In this non-clamped state, wherein the clamping element 8 is held in
the positioning slot 16, there is a secure play present between the

clamping surface 9 of the clamping element 8 and the clamping surface
5 of the clamping tooth 4 of the component 2. The clamping tooth 4 of
the component 2 can here be fitted into the clamping groove 14of the
holder 3 or removed therefrom not hindered. For the illustrative em-
bodiment represented in figures 1 to 5, this can be done by moving the
clamping tooth 4 of the component 2 roughly in the transverse direction
48 into or out of the clamping groove 14. That is to say roughly parallel
with the obliquely arranged surfaces 5 and 13 of the clamping tooth 4
and with the obliquely arranged surface 9 of the clamping piece 8 and
the obliquely arranged surface 15 of the clamping groove 14.
In the represented illustrative embodiment, the clamping surfaces 5, 13,
9 and 15 respectively are arranged at an angle of roughly 60° with re-
spect to the supporting surfaces 24, 25 of the holder 3, which, in the
represented embodiment, are arranged horizontally. The created play
between the clamping surface 9 of the clamping element 8 and the
clamping surface 5 of the clamping tooth 4 of the component 2, as rep-
resented in figure 4, is also advantageous, however, when the compo-
nent 2 is fitted by sliding the clamping tooth 4 in the longitudinal direc-
tion 47 into the clamping groove 14 of the holder 3. This method cannot
however be used if, as represented in figure 6, on both sides of the
holder 3 elements 106 of the weaving machine are provided, which
prevent the component 2 from being fitted onto the holder 3 in the lon-
gitudinal direction 47.
The hexagonal clamping element 8 of the illustrative embodiment as
represented in figures 1 to 5 rests under the influence of gravity in the
non-clamped state, as represented in figure 4, with the horizontal sur-
face 21 on the horizontal surface 18 formed by the base of the position-
ing slot 16. Moreover, the oblique surfaces 17 and 19 of the positioning
slot 16, which are arranged in accordance with the oblique surfaces 20
and 22 of the clamping element at an angle of roughly 60° with respect
to the horizontal supporting surfaces 24, 25 of the holder, prevent the

clamping element 8 from being able to tilt or the clamping element 8
from shifting significantly transversely in the direction of the cloth.
Hence the openings 23 of the clamping element 8 remain, even in the
non-clamped state as represented in figure 4, assuredly arranged in a
roughly angular position. Moreover, in the represented illustrative em-
bodiment, the trapezoidal cross section of the positioning slot 16, which
is roughly consistent with the trapezoidal shape of the bottom half of
the hexagonal cross section of the clamping element 8, ensures that
the clamping element 8, and thus the openings 23 provided therein, are
aligned with respect to the openings 12 in the holder 2 in which the
screw elements 11 are arranged with sufficient play. The clamping
element 8 is not thereby hindered when it is moved, by the screwing on
of the screw elements 11, from a non-clamped state, as represented in
figure 4, to a clamped state, as represented in figures 1 and 3. The
clamping element 8 here continues to maintain its orientation.
The hexagonal clamping element 8 as represented in figures 1 to 5 can
be moved in the transverse direction 49, roughly parallel with the
oblique surface 19 of the positioning slot 16, that is to say at an angle
of roughly 60° with respect to the horizontal supporting surfaces 24, 25
of the holder 3, into or out of the positioning slot 16, before the fitting or
after the removal of the component 2, which latter case is represented
in figure 5. The oblique surface 22 of the clamping element 8 can here
be guided by the corresponding oblique guide surface 19 of the posi-
tioning slot 16, so that the clamping element 8, when fitted into the po-
sitioning slot 16, moves under the influence of gravity obliquely down-
ward until the horizontal surface 21 of the clamping element 8 rests on
the horizontal surface 18 of the positioning slot 16. During this move-
ment, the clamping surface 6 of the clamping groove 14, which is ar-
ranged roughly parallel to the oblique guide surface 19 of the position-
ing slot 16, ensures that the clamping element 8 cannot tilt as it is intro-
duced into the positioning slot 16, since the surface 6 and the guide
surface 19, which are arranged roughly parallel with each other, re-

spectively cooperate with the clamping surface 10 and the surface 22,
which clamping surfaces are arranged roughly parallel with each other.
Hence, in the represented illustrative embodiment, the openings 23 in
the clamping element 8 assuredly continue to be arranged roughly ver-
tically, even during fitting into the positioning slot 16. The presence of
the obliquely arranged guide surface 19 is likewise advantageous in the
removal of the elongated clamping element 8 from the positioning slot
16 in the transverse direction 49, since, in the obliquely upward move-
ment, the clamping element 8 is supported and guided by the guide
surface 19.
As represented in figure 1, a second component 32 is arranged onto
the component 2. This second component 32 is, for example, a so-
called temple platform that can be fastened close to a temple (not rep-
resented). Such a component 32 has a length of roughly ten cm up to
fifty cm and is fastened with at least two bolts 31. The second compo-
nent 32 is fastened to the component 2 by means of a known clamping
arrangement 30. The second component 32 is provided with openings
37, in which bolts 31 are fitted which can cooperate with internally
threaded openings 40 in the mounting element 38. Through the tighten-
ing of the bolts 31, the mounting element 38 introduced into the T-
groove 39 is clamped against the horizontal clamping surfaces 35 and
36 of the T-groove 39, whereby the second component 32 is clamped
onto the horizontal supporting surfaces 33, 34 of the component 2. It is
clear that the mounting element 38 can easily be introduced in the lon-
gitudinal direction 47 into the T-groove 39. The horizontal clamping sur-
faces 35, 36 of the known clamping arrangement 30 have a signifi-
cantly smaller surface than the clamping surfaces 6, 15 of the clamping
arrangement 1 according to the invention, whereby the clamping ar-
rangement 1 according to the invention can be exposed to high loads
without risk of high pressures or damage to the clamping surfaces of
the clamping arrangement 1, not even if the clamping arrangement 1 is
fitted and removed frequently. The horizontal arrangement of clamping

surfaces 35, 36 of the known clamping arrangement 30 is also less
suited to offering resistance to loads in this horizontal direction. It is
clear that the clamping arrangement 1 according to the invention posi-
tions the component 2 clearly transversely on the holder 3, whilst in the
known clamping arrangement 30 uncertainty exists as regards the
transverse position of the second component 32 on the component 2 in
the clamped state.
In figure 7, a variant embodiment is represented, wherein two clamping
arrangements 1, 78 according to the invention are used. The clamping
arrangement 1 of figure 7 is used for the fastening of a component 79
to a holder 3 and is constructed similarly to the clamping arrangement 1
of figure 1. A second component 80 is likewise fastened with a clamp-
ing arrangement 78 according to the invention to the component 79,
which here additionally acts as the holder. The second component 80
forms the cover of a bar type temple, which comprises a temple bar 65
and, just like the component 79, extends in the longitudinal direction 47
of the holder 3 over roughly the full width of the weaving machine. The
clamping arrangement 78 for clamping the second component 80 com-
prises a clamping element 82 of hexagonal cross section with internally
threaded openings 85 in which there are screwed screw elements 83,
formed by bolts, which are fitted roughly vertically through openings 84
in the second component 80. A number of screw elements 83, distrib-
uted over the length of the clamping arrangement 78, are provided, for
example one screw element or bolt every twenty cm. For a component
80 of more than two meters, this thus gives rise to a clamping ar-
rangement 78 with more than ten screw elements 83. Through the
tightening of the screw elements 83, the clamping element 82, as rep-
resented in figure 7, is clamped with the obliquely arranged clamping
surface 93 against the corresponding clamping surface 92 of the
clamping tooth 87 of the second component 80 and with the obliquely
arranged clamping surface 91 against the corresponding clamping sur-
face 90 of the component 79. As a result, the obliquely arranged clamp-

ing surface 88 of the clamping tooth 87 of the second component 80 is
clamped against the corresponding clamping surface 89 of the clamp-
ing groove 86 of the component 79. The clamping tooth 87 of the sec-
ond component 80 forms together with the clamping element 82 a
wedge of roughly trapezoidal cross section, which is clamped into the
clamping groove 87 of corresponding, roughly trapezoidal cross section
and thus forms a dovetail joint, whereby the horizontal fastening sur-
faces 100, 102 of the second component 80 are clamped onto the cor-
responding horizontal supporting surfaces 101, 103 of the component
79. In this way, the second component 80 is firmly clamped onto the
component 79 and can offer resistance to the high load to which this
second component 80 is exposed.
The positioning slot 81 and the associated clamping element 82 for the
fastening of the second component 80 are shaped similarly to the cor-
responding positioning slot 16 and the associated clamping element 8
for the fastening of the component 79. In the non-clamped state, for
example after the removal of the screw elements 83, the surfaces 97,
98 and 99 of the positioning slot 81 cooperate with the correspondingly
arranged surfaces 94, 95 and 96 of the clamping element 82, so that
the clamping tooth 87 can be removed from the clamping groove 86
roughly in the transverse direction 48.
In contrast to the clamping arrangement 1 for the fastening of the com-
ponent 79 to the holder 3, the clamping element 82 cannot be removed
from the clamping groove 86 in the transverse direction 49. Since the
clamping groove 86 is less wide than the clamping groove 14, the
clamping surface 89 of the clamping groove 86 forms an obstacle
hereto. In order to enable the transverse removal and fitting of the
clamping element 82, an obliquely arranged surface 104 has been pro-
vided parallel to this clamping surface 89. According to this illustrative
embodiment, the surface 104 and the clamping surface 89 are provided
roughly at an angle of 60° in the direction 48 or 49 with respect to the

horizontally arranged supporting surfaces 101, 103. It is thus possible
to remove the clamping element 82 from the clamping groove 86 by
first displacing the clamping element 82 roughly in the transverse direc-
tion 49 until this displacement is prevented by the clamping surface 89,
and then displacing the clamping element 82 roughly in the transverse
direction 48, that is to say roughly parallel to the clamping surface 89
and the surface 104. In this embodiment, the component 79, in the light
of a clamping arrangement according to the invention, can be referred
to as the holder onto which the component 80 is clamped.
According to a non-represented illustrative embodiment, the second
component 80 can also however be a second component such as the
second component 32 represented in figure 1, or another component
that can be fastened to the component 79.
In figure 8, a clamping arrangement 1 according to the invention is rep-
resented, wherein the positioning slot 43 exhibits a triangular cross sec-
tion. In the non-clamped state, as represented in figure 8, the clamping
element 8 rests under the influence of gravity with the obliquely ar-
ranged surfaces 20, 22 on the corresponding obliquely arranged sur-
faces 41, 42 of the positioning slot 43. The surfaces 41, 42 of the posi-
tioning slot 43 are arranged such that they align the clamping element 8
fitted in the positioning slot 43 perfectly with respect to the screw ele-
ments 11. That is to say that, in this embodiment, the roughly vertically
arranged axes 50 of the openings 12 in the component 2, the openings
23 in the clamping element 8 and the screw elements 11 coincide. As a
result, the screw elements 11, which are fitted through the openings 12
in the component 2, are perfectly aligned to be screwable into the
openings 23 of the clamping element 8. This makes it possible to screw
a large number of bolts 11 rapidly into the clamping element 8, or pos-
sibly to automatize the fitting of the screw elements 11.
In figure 9, a clamping arrangement 1 according to the invention is rep-

resented, wherein the positioning slot 46 exhibits a cross section in the
form of a polygon. In the non-clamped state, as represented in figure 9,
the clamping element 8 rests under the influence of gravity with the
obliquely arranged surfaces 20, 22 on the corresponding obliquely ar-
ranged surfaces 44, 45 of the positioning slot 46. The surfaces 44, 45
of the positioning slot 46 are arranged such that they align the clamping
element 8 fitted in the positioning slot 46 perfectly with respect to the
screw elements 11.
In figure 10, a clamping arrangement 1 according to the invention is
represented, having a positioning slot 57 of triangular cross section
analogous to the illustrative embodiment as represented in figure 5.
The clamping element 58 here exhibits a pentagonal cross section. In
accordance with the illustrative embodiment as represented in figure 5,
the obliquely arranged surfaces 51, 52 of the positioning slot 57 coop-
erate with correspondingly obliquely arranged surfaces 53, 54 to align
the fitted clamping element 58 perfectly with respect to the screw ele-
ments 11. Furthermore, in the clamped state, the clamping surface 56
of the clamping groove 14 of the holder 3 and the clamping surface 55
of the component 2 cooperate with the corresponding clamping sur-
faces 59, 60 of the clamping element 58. The obliquely arranged sur-
face 52 of the positioning slot 57 is suitable for guiding the correspond-
ing obliquely arranged surface 54 of the pentagonal clamping element
58 as this clamping element 58 is transversely fitted into or removed
from the positioning slot 57. Moreover, the surface 52 of the positioning
slot 57 for guiding the clamping element 58 and the clamping surface
56 of the clamping groove 14 of the holder 3 form an acute angle
which, as can be seen in figure 10, widens in the direction of the open-
ing along which the clamping element 58 can be moved transversely in
the positioning slot 57. The clamping element 58 can hence comforta-
bly be moved transversely into and out of the positioning slot 57. As the
clamping element 58 is fitted into the positioning slot 57, the obliquely
arranged surface 52 of the positioning slot 57, together with the

obliquely arranged clamping surface 56 of the clamping groove 14, en-
sures that the clamping element 58 cannot tilt, since the surface 52 and
the clamping surface 56 respectively cooperate with corresponding sur-
faces 54 and 59 of the clamping element 58. It can thereby be assured
that, during the fitting of the clamping element 58, the openings 23 in
the clamping element 58 maintain their roughly angular position.
In figure 11, a variant embodiment of the clamping arrangement 1 ac-
cording to the invention is represented. The cross section of the posi-
tioning slot 66 is a polygon formed by a vertically arranged surface 61,
a horizontally arranged surface 63 and two obliquely arranged surfaces
62 and 64. Analogously to the illustrative embodiment as represented
in figure 5, the two obliquely arranged surfaces 62, 64 of the positioning
slot 66 cooperate with two correspondingly obliquely arranged surfaces
of the hexagonal clamping element 8 to align the clamping element 8
fitted in the positioning slot 66 perfectly with respect to the positioning
slot 66 and the screw elements 11.
In figures 12 and 13, a further variant embodiment of the clamping ar-
rangement 1 according to the invention is represented, having a trape-
zoidal clamping element 68 According to this embodiment, the clamp-
ing arrangement 1 comprises screw elements 105 comprising a
threaded rod 107 which can cooperate with a nut 108. This clamping
element 68 likewise comprises two obliquely arranged clamping sur-
faces 73, 75, which respectively cooperate with a clamping surface 69
of the holder 3 and a clamping surface 77 of the component 2. The
clamping element 68 additionally comprises a surface 76 directed to-
ward the component 2. In the clamping groove 14 of the holder 3 there
is likewise provided a positioning slot 67. This positioning slot 67 is
formed by the vertically arranged surface 70, the horizontally arranged
surface 71 and the obliquely arranged surface 72. As represented in
figure 13, the clamping element 68 can be fitted transversely into the
positioning slot 67, where in the non-clamped state, under the influence

of gravity, it rests with the horizontal surface 74 on the corresponding
horizontal surface 71 of the positioning slot 67. The surfaces 70 and 72
delimit the positioning slot 67 such that the fitted clamping element 68
is positioned roughly correctly with respect to the threaded rods 107 to
be fitted. The threaded rods 107 are screwed through the openings 12
in the component 2 into the openings 23 in the clamping element 68.
After this, the nuts 108 are screwed onto the threaded rods to move the
clamping element 68 up to the component 2.
It is also possible to secure the threaded rods 107 in the openings 23 in
the clamping element 68, for example by gluing them in place or fixing
them in some other way. The clamping element 68 can then, together
with the threaded rods 107, be moved as a whole into and out of the
positioning slot 67. According to one option, the component 2 can be
provided with a slot extending in the longitudinal direction 47, instead of
having separate openings 12 for each threaded rod 107. As repre-
sented in figure 12, the clamping surface 109 of the clamping tooth 4
and the corresponding clamping surface 110 of the clamping groove 14
are, in this embodiment, arranged at a specific small angle to the verti-
cal, which is advantageous for the clamping of the clamping tooth 4 in
the clamping groove 14. According to a non-represented variant, in the
embodiment of figure 12 the clamping surfaces 109 and 110 can also
be arranged roughly vertically.
In figure 14, a clamping arrangement 1 according to the invention is
represented, having a positioning slot 117 of a cross section comprising
a vertically arranged surface 119 and two obliquely arranged surfaces
111 and 112. The clamping element 118 here exhibits a quadrilateral
cross section, more particularly a square cross section. Similarly to the
illustrative embodiment of figure 8, the obliquely arranged surfaces 111,
112 of the positioning slot 117 cooperate with corresponding obliquely
arranged surfaces 113, 114 of the clamping element 118, in order to
align a fitted clamping element 118 perfectly with respect to the screw

elements 11. Furthermore, in the clamped state, the clamping surface
116 of the clamping groove 14 of the holder 3 and the clamping surface
115 of the component 2 cooperate with the corresponding clamping
surfaces 120, 121 of the clamping element 118. The obliquely arranged
surface 112 of the positioning slot 117 is suitable for guiding the corre-
sponding obliquely arranged surface 114 of the quadrilateral clamping
element 118 as this clamping element 118 is transversely fitted into or
removed from the positioning slot 117. Moreover, the surface 112 of the
positioning slot 117 for guiding the clamping element 118 and the
clamping surface 116 of the clamping groove 14 of the holder 3 are ar-
ranged roughly parallel with each other. The clamping element 118 can
hence comfortably be moved transversely into and out of the position-
ing slot 117 and it is ensured that, during the fitting of the clamping
element 118, the openings 23 in the clamping element 118 maintain
their roughly angular position. It is clear that, instead of a square, any
other quadrilateral whatsoever can be used as the clamping element.
In figure 15, a variant embodiment of a clamping arrangement 1 ac-
cording to the invention is represented in accordance with the illustra-
tive embodiment as represented in figure 3. In figure 15, the openings
23 are not provided centrally in the hexagonal clamping element 8, but,
in particular, these openings 23 are provided somewhat eccentrically.
In figures 16 and 17, an embodiment of a clamping arrangement 1 ac-
cording to the invention is represented in accordance with figures 3 and
5, the clamping arrangement 1 being represented in an angular position
which is turned approximately 90° with respect to the angular position
represented in figures 3 and 5.
In figures 18 and 19, an embodiment of a clamping arrangement 1 ac-
cording to the invention is represented in accordance with figures 3 and
5, the clamping arrangement 1 being represented in an angular position
which is turned approximately 60° with respect to the angular position

represented in figures 3 and 5. It is clear that non-represented variant
embodiments are possible, wherein a clamping arrangement 1 has
been turned through any other angle whatsoever, the clamping element
8 being able to be held in a clamping groove 16.
In figure 20, a further variant embodiment of a clamping arrangement 1
according to the invention is represented in accordance with the em-
bodiment as represented in figure 3, wherein the axis 50 of the screw
elements 11 and the openings 122 in the component 2 and the open-
ings 123 in the clamping element 8 are provided at an angle to the per-
pendicular on the roughly horizontal surface 7 of the hexagonal clamp-
ing element 8.
It is clear that, according to a non-represented variant, the screw ele-
ment 11 can be arranged both non-centrally, analogously to figure 15,
and also at an angle, analogously to figure 20.
Other combinations of clamping elements and associated positioning
slots are, of course, possible. More particularly, in addition to clamping
elements of trapezoidal, pentagonal and hexagonal cross section,
clamping elements of some other cross section, for example heptago-
nal, octagonal, square or any other polygon whatsoever, are also con-
ceivable. A clamping element 8 of hexagonal cross section can be sim-
ply and cheaply produced.
It is clear that a pentagonal or hexagonal clamping element as repre-
sented in figure 1 to 9 is particularly advantageous, since the openings
23 in the clamping element which are provided with an internal thread
for the reception of the screw elements 11 exhibit approximately twice
the length of the available openings 23 in the case of a trapezoidal
clamping element with corresponding clamping surfaces. This ensures
a better connection between the clamping element and the screw ele-
ments.

The clamping arrangement 1 according to the invention enables an
elongated component 2 for a weaving machine to be clamped onto a
holder 3 by first fitting the clamping element 8 transversely into a posi-
tioning slot 16, then fitting the component 2 onto the holder 3, and then
fitting the screw elements 11 through openings 12 in the component 2
so as to screw them into openings 23 of the clamping element 8. The
clamping arrangement 1 according to the invention also allows an
elongated component 2 for a weaving machine, which component is
clamped on a holder 3, to be removed from this holder 3 by unscrewing
the bolts 11 from the clamping element 8, then removing them through
openings 12 in the component 2, then removing the component 2 from
the holder 3, and then transversely removing the clamping element 8
from the positioning slot 16 and the holder 3.
The screw elements 11, 83, 105 are not limited to the represented bolts
or threaded rods but can likewise comprise other elements, for example
hexagon socket bolts or screwed bushes. According to a non-
represented variant, instead of separate openings 12 in the component,
a slot extending in the longitudinal direction 47 can be provided.
In figures 3 and 4 and in figures 8 to 13, the component 2 has been ar-
ranged, for the sake of clarity, at a short distance from the holder 3. In
these positions, in actual fact, the component 2 is supported on the
holder 3 in a manner as represented in figure 1. The screw elements
11, 83, 105 can move with sufficient play in the openings 12, 84, 122,
so that the screw elements can easily be screwed into the clamping
element should the component 2 be arranged on the holder 3, more
particularly should the component 2 be arranged in a position on the
holder 3 which is approximately consistent with the clamping position of
the component 2 on the holder 3.
The weaving machine, the clamping arrangement for the clamping, and
the methods according to the invention are not limited, of course, to the

embodiments described by way of example and represented in the fig-
ure, but can be realized within the scope of the invention according to
different variants and according to different combinations of the afore-
said represented embodiments according to the invention.

WE CLAIM
1. A clamping arrangement for clamping a component (2, 79; 80) onto a
holder (3, 79) of a weaving machine, comprising at least one clamping
element (8, 82, 58, 68, 118) arrangable in a clamping groove (14, 86) of
the holder (3, 79) and screw elements (11, 83, 105) for fixing said
clamping element (8, 82, 58, 68, 118), characterized in that the clamping
groove (14, 86) is provided with a positioning slot (16, 81, 43, 46, 57, 66,
67, 117) extending in a longitudinal direction of the clamping groove (14,
86) and comprising surfaces (41, 42, 44, 45, 51, 52, 62, 64, 111, 112)
which can cooperate with corresponding surfaces (20, 22, 53, 54, 113,
114) of the at least one clamping element (8, 82, 58, 118) to align said
clamping element (8, 82, 58, 118), arranged in the positioning slot (43,
46, 57, 66, 117), with respect to the axis (50) of the screw elements (11,
83,105) which can be fitted through openings (12,122) in the component
(2, 79, 80), while the screw elements (11, 83, 105) are loosend, which at
least one clamping element (8, 82, 58, 68, 118) also has clamping
surfaces one of which cooperating with the component (2, 79; 80) and
one of which cooperating with the holder (3, 79) while the screw elements
(11, 83,105) are tightened.
2. The clamping arrangement as claimed in claim 1, wherein the clamping
element (8, 82, 58, 68, 118) comprises a first clamping surface (10, 91,
59, 73, 120) and a second clamping surface (9, 93, 60, 75, 121), placed
opposite each other, wherein the holder (3; 79) comprises a clamping
groove (14, 86) which extends in the longitudinal direction (47) of the
clamping arrangement (1, 78) and comprises a first clamping surface (6,

90, 56, 69, 116) and a second clamping surface (15, 89), placed opposite
each other, wherein the component (2, 79; 80) comprises a clamping
tooth (4, 87) which extends in the longitudinal direction (47) of the
clamping arrangement (1, 78) and, when the component (2, 79; 80) is
fitted onto the holder (3; 79), reaches into the clamping groove (14, 86),
which latter comprises a first clamping surface (5, 92, 55, 77, 115) that
can cooperate with a clamping surface (9, 93, 60, 75, 121) of the
clamping element (8, 82, 58, 68, 117) and further comprises a second
clamping surface (13, 88, 109) that is placed opposite the first clamping
surface (5, 92, 55, 77, 115) and that can cooperate with a clamping
surface (15, 89, 110) of the clamping groove (14, 86), wherein the screw
elements (11, 83, 105) can move the clamping element (8, 82, 58, 68,
118) up to the component (2, 79; 80) in order to clamp the component
(2, 79; 80) onto the holder (3; 79).
3. The clamping arrangement as claimed in one of claims 1 or 2, wherein the
positioning slot (16, 81, 43, 46, 57, 66, 67, 117) comprises surfaces (17,
18, 19, 97, 98, 99, 41, 42, 44, 45, 51, 52, 62, 64, 70, 71, 72, 111, 112)
which can cooperate with corresponding surfaces of the at least one
clamping element (20, 21, 22, 94, 95, 96, 53, 54, 74, 113, 114) to hold
the clamping element (8, 82, 58, 68, 118) arranged in the positioning slot
(16, 81, 43, 46, 57, 66, 67, 117) in an angular position before the
component (2, 79; 80) is clamped onto the holder (3; 79) and/or after the
component (2, 79; 80) has been removed from the holder (3; 79).

4. The clamping arrangement as claimed in one of claims 1 to 3, wherein the
positioning slot (16, 81, 43, 46, 57, 66, 67, 117) comprises at least one
surface (19, 99, 45, 57, 72,112) for guiding the clamping element (8, 82,
58, 68, 118) as'the clamping element (8, 82, 58, 68, 118) is transversely
fitted into or removed from the positioning slot (16, 81, 43, 46, 57, 66,
67,117).
5. The clamping arrangement as claimed in one of claims 1 to 4, wherein the
clamping arrangement (1, 78) further comprises a surface (19, 99,45, 57,
72, 112) of the positioning slot (16, 81, 43, 46, 57, 66, 67, 117) and a
clamping surface (6, 90, 56, 69, 116) of the clamping groove (14, 86) of
the holder (3; 79) for guiding the clamping element (8, 82, 58, 68, 118)
as the clamping element (8, 82, 58, 68, 118) is transversely fitted into or
removed from the positioning slot (16, 81, 43,46, 57, 66, 67,117).
6. The clamping arrangement as claimed in claim 5, wherein the surface (19,
99, 45, 57, 72, 112) of the positioning slot (16, 81, 43, 46, 57, 66, 67,
117) and the clamping surface (6, 90, 56, 69,116) of the clamping groove
(14, 86) of the holder (3; 79) for guiding the clamping element (8, 82, 58,
68,118) are placed roughly parallel to each other.
7. The clamping arrangement as claimed in claim 5, wherein the surface (52)
of the positioning slot (57) for guiding the clamping element (58) and the
clamping surface (56) of the clamping groove (14, 86) of the holder (3;
79) placed at an acute angle to each other, which widens in the direction

of the opening of where the clamping element (58) can be fitted
transversely into the positioning slot (57).
8. The clamping arrangement as claimed in one of claims 1 to 7, wherein the
cross section of the clamping element (8, 82, 58, 68,118) is a polygon.
9. The clamping arrangement as claimed in one of claims 1 to 8, wherein the
cross section of the clamping element (8, 82) is a hexagon.
10.The clamping arrangement as claimed in one of claims 1 to 9, wherein
clamping arrangement (1, 78) comprises at least two screw elements (11,
83,105).
11.The clamping arrangement as claimed in one of claims 1 to 10, wherein
the clamping arrangement (1, 78) comprises a clamping element (8, 82,
58, 68,119), fittable into a clamping groove (14, 86), and screw elements
(11, 83, 105) and in that the clamping arrangement (1, 78) comprises a
positioning slot (16, 81, 43, 46, 57, 66, 67, 117) which is provided in the
clamping groove (14, 86) of the holder 3; 79) in the longitudinal direction
(47) of the clamping arrangement (1, 78) and comprises surfaces (17,18,
19, 97, 98, 99, 41, 42, 44, 45, 51, 52, 62, 64, 70, 71, 72, 111, 112) which
can cooperate with the clamping element (8, 82, 58, 68, 118) to hold a
clamping element (8, 82, 58, 68, 118), arranged in the positioning slot
(16, 81,43, 46, 57, 66, 67, 117), before the component (2, 79; 80) is
clamped onto the holder (3; 79) and/or after the component (2, 79; 80)
has been removed from the holder (3; 79).

12. Use of a clamping arrangement (1, 78) as claimed in one of claims 1 to 11 in
a weaving machine having a holder (3, 79), wherein the clamping
arrangement (1, 78) comprises at least one clamping element (8, 82, 58, 68,
118) and screw elements (11, 83, 105), and wherein for clamping a
component (2, 79; 80) onto the holder (3; 79) the clamping element (8, 82,
58, 68, 118) is fitted transversely into a positioning slot (16, 81, 43, 46, 57,
66, 67,117), and the component (2, 79; 80) and the screw elements (11, 83,
105) are then fitted, whereupon the screw elements (11, 83, 105), through
openings (12, 122) in the component (2, 79; 80), can cooperate with the
clamping element (8, 82, 58, 68, 118) to clamp the component (2, 79; 80)
onto the holder (3; 79), and/or wherein for removing a component (2, 79;
80) that is arranged on the holder (3; 79) in the weaving machine, the screw
elements (11, 83,105) cooperating with the clamping element (8, 82, 58, 68,
118) and the component (2, 79; 80) through openings (12, 122) in the
component (2, 79; 80) are removed, and the clamping element (8, 82, 58,
68, 118) is then removed transversely from the positioning slot (16, 81, 43,
46, 57, 66, 67, 117).
13. A weaving machine wherein the weaving machine comprises a clamping
arrangement (1, 78) as claimed in one of claims 1 to 11.

ABSTRACT

TITLE: CLAMPING ARRANGEMENT FOR CLAMPING AND
REMOVING A COMPONENT IN A WEAVING MACHINE AND
METHODS THEREOF
A clamping arrangement for clamping a component (2, 79; 80) onto a holder (3;
79) in a weaving machine, comprising a clamping element (8, 82, 58, 68) a
screw elements (11, 83,105), wherein that clamping arrangement (1) comprises
a positioning slot (9, 16, 81, 43, 46, 57, 66, 67) which is provided in the
longitudinal direction (47) of the clamping arrangement (1) in the clamping
groove (14, 86) of the holder (3; 79). A method for clamping a component (2,
79; 80) onto a holder (3; 79) in a weaving machine. A weaving machine which
makes use of such a clamping arrangement (1) and for implementing such a
method.

Documents:

http://ipindiaonline.gov.in/patentsearch/GrantedSearch/viewdoc.aspx?id=8VEkU47fkIuYc6R96XdTww==&loc=wDBSZCsAt7zoiVrqcFJsRw==

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Patent Number

271531

Indian Patent Application Number

3303/KOLNP/2008

PG Journal Number

09/2016

Publication Date

26-Feb-2016

Grant Date

24-Feb-2016

Date of Filing

12-Aug-2008

Name of Patentee

PICANOL N.V.

Applicant Address

TER WAARDE 50, B-8900 IEPER

Inventors:

#	Inventor's Name	Inventor's Address
1	MEYNS, IGNACE	OOSTPOESELSTRAAT 7, B-8647 RENINGE
2	HOORELBEKE, WIM	KLERKENSTRAAT 150, B-8920 LANGEMARK

PCT International Classification Number

D03D 49/02,D03J 1/22

PCT International Application Number

PCT/EP2007/005335

PCT International Filing date

2007-06-18

PCT Conventions:

#	PCT Application Number	Date of Convention	Priority Country
1	2006/0332	2006-06-19	Belgium