Title of Invention

METHOD AND SYSTEM FOR FASTENING A CASING OF A MULTI-TAP DISTRIBUTION APPARATUS

Abstract

A fastening system for a casing of a multi-tap distribution apparatus comprises a conveyer, and a screw fastened device. The conveyer provides a flat work platform and a plurality of locating plates are disposed above the work platform with an equal space apart from each other. Each locating plate is fixedly attached with a locating base and the locating plate at an inner side thereof is fixedly attached to an endless chain. The chain meshes with sprockets and the sprockets is able to turn for running the fastening system. The screw fastened device strides the work platform and provides a frame for an ascendable press rod, air tools and a detector being able to be fixedly attached to. The detector can send out a signal after detecting and the movable chain is stopped and the press rod descends to press against the casing. The air tools descend too to fit with nuts of the screws and to rotate for fastening the cover and the lower base together.

Full Text

FORM 2 THE PATENTS ACT, 1970 [39 OF 1970] COMPLETE SPECIFICATION [SEE SECTION 10] 1 TITLE METHOD AND SYSTEM FOR FASTENING A CASING OF A MULTI-TAP DISTRIBUTION APPARATUS 2 APPLICANT NAME LANTEK ELECTRONICS INC. ADDRESS NO 9, LANE 369 SEC. 3, TA, TUNG ROAD, HSI CHIH, TAIPEI HSIEN, TAIWAN. NATIONALITY TAIWAN, ROC The following specification particularly describes the nature of the invention and the manner in which it is to be performed:- METHOD AND SYSTEM FOR FASTENING A CASING OF MULTI-TAP DISTRIBUTION APPARATUS BACKGROUND OF THE INVENTION 1. Field of The Invention: 5 The present invention relates to a method and a system for fastening a casing of a multi-tap distribution apparatus, and, more particularly, to a method and a system, with which a casing of a multi-tap distribution apparatus can be fastened automatically and accurately. 2. Description of Related Art: 10 It has been years that the multi-tap distribution apparatus is adopted for a transmission of signal and/or power source. Presently, the cable television station popularly uses the multi-tap distribution apparatus as a relay transmitter to distribute the signal and/or the power source to each of the customers. Thus, the output line pairs (two lines form a pair) available on the multi-tap distribution apparatus means 15 the maximum numbers of customers can be distributed by the multi-tap distribution apparatus. Although the multi-tap distribution apparatus can be fixedly attached to a public area inside a congregative house such as a multi-storied building or an apartment, it is possible for the multi-tap distribution apparatus to expose outdoor to 20 suffer the winds, the rains, the frosts, and the snow falls while the customers live in a community of scattered houses. In order to keep the circuit in the multi-tap distribution apparatus from damage such as being rusted or short circuit, it is necessary for the multi-tap distribution apparatus to be made with a complete seal and being free from seeped water. 25 The multi-tap distribution apparatus basically is composed of a base being fastened together with an upper cover regardless it is the coaxial type or the single signal type. Except it is required that the multi-tap distribution apparatus has to be in a state of being sealed completely as it has been mentioned above, it is not allowed us to ignore the importance of a firm fastening for the casing of multi-tap distribution apparatus. 5 Normally, the operation for fastening the casing of the multi-tap distribution apparatus is performed manually by way of screws being engaging to the casing with the air tool. Of course, it is fine that the manual work for a set of screws with a slow production, but it may generate a bottleneck resulting from delivering the work pieces, arranging the lead time and the operation time, and so on in case of multiple 10 sets of screws being conducted by way of the manual operation. Moreover, under the circumstance of the labor cost getting higher and the automation being pursued eagerly, the manual operation becomes sarcasm to the present industrial technology. SUMMARY OF THE INVENTION 15 An object of the present invention is to provide a method and a system for fastening a casing of a multi-tap distribution apparatus, which comprises a conveyer, and a screw fastened device to fasten the casing automatically with an endless chain moving in a cycle repeatedly such that an accurate and faster fastening job can be performed successfully. 20 BRIEF DESCRIPTION OF THE DRAWINGS The present invention can be more fully understood by referencing to the following description and accompanying drawings, in which: Fig. 1 is an exploded perspective view of a multi-tap distribution apparatus; Fig. 2 is a perspective view of a conveyer disclosed in a system of the 25 present invention for fastening the casing of a multi-tap distribution apparatus; and Fig. 3 is a perspective view of a screw fastened device in a system of the present invention for fastening the casing of a multi-tap distribution apparatus. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Referring to Fig. 1, a multi-tap distribution apparatus shown is a 5 sophisticate one, which can transmit the signal and the power source simultaneously, so that it is necessary to be fastened with two times. For a simple multi-tap distribution apparatus with a signal transmission, it requires only to be fastened once. The sophisticate multi-tap distribution apparatus illustrated in Fig. 1 comprises a base A, a coaxial cover B, and a module cover of current distribution C. 10 The coaxial cover B has to be fastened to the base A first and then the module cover C is fastened to the coaxial cover B. In order to complete the fastening job, the system for fastening the multi-tap distribution apparatus according to the present invention comprises a conveyer 1, and at least a screw fastened device 2. 15 Wherein, the conveyer 1 provides a flat work platform 11 and a plurality of locating plates 12 disposed above the work platform 11. The locating plates 12 are spaced to each other equally and a locating base 13 is disposed on each locating plate 12 and fixedly attached to the locating plate 12 respectively. The respective locating plate 12 at the inner side thereof is fixed to a movable endless chain 14. 20 Further, the work platform 11 is provided with a flat surface for work and the work platform at the inner side thereof provides several sprockets 111 meshes with the chain 14. The sprockets 111 driven by a motor with a reduction speed so that the endless chain 14 can be actuated to move in a cycle repeatedly. Because the locating plates 12 at the inner sides thereof are fixed to the 25 top of the endless chain 14 by way of fixing pins so as to move along with the endless chain. The locating plate 12 at the outer side thereof provides plate wheels 121 in addition to the locating base 13 being fixedly attached to the upper surface thereof such that the locating plates 12 can move smoothly with the endless chain. The locating base 13 is provided to correspond to the contour of the multi-tap distribution apparatus so that there are different shapes for the locating base 13 5 based on different multi-tap distribution apparatus. The locating base 13 is fixedly attached to the locating plate 12 so as to be placed by the multi-tap distribution apparatus. The endless chain 14 meshes with the sprockets 111 so that the endless chain 14 can be driven to move in a cycle repeatedly as mentioned above. 10 The screw fastened device 2 is disposed above the work platform 11 and strides the work platform 11. The screw fastened device 2 further comprises a frame 21, a press rod 22, a plurality of air tools 23, and a detector 24. Wherein, the frame 21 is fixedly attached to the work platform 11 and provides four legs 211 and a top plate 212 thereof for supporting other components 15 of the screw fastened device 2. The press rod 21 is possible to move upward and downward and the purpose thereof is to press and retain the upper cover of the multi-tap distribution apparatus so as to locate the multi-tap distribution apparatus well. The upward and the downward movements of the press rod 21 can be done by way of a conventional 20 hydraulic or air cylinder so that no detail will be described further. The air tools 23 are used for fastening the screws to the casing of the respective multi-tap distribution apparatus so that the amount and the specification thereof, and even the fastened length into the casing are corresponding to the fastened screws on the multi-tap distribution apparatus. The air tools 23 connect 25 with a compressor via air tubes so that the work of fastening can be done quickly. The detector 24 is used for detecting and starting the operation of fastening so that it can be disposed at the front or the rear sides of the frame 21. The detector 24 shown in Fig. 3 is a shading type of detector and the detector can emit a signal as soon as a light beam sent from one side is blocked and a receiver at an opposite side thereof cannot receive the light beam. The detector is operated by way of a programmable control and, in addition, the programmable control is performed by 5 way of a controller to control the motor driving the chain 14, and the compressor driving the press rod 22. These are belonged to the prior art so that no detail will be described. Referring to Figs 1 to 3 again, while the system for fastening a casing of the multi-tap distribution apparatus is in operation, a unfastened multi-tap distribution 10 apparatus with the lower base A having been closed with the cover (B or C) and being attached with threaded rods is located in place and the cycling chain 14 is actuated to move around. Then, the unfastened multi-tap distribution apparatus moves along with the chain 14 to the frame 21 and the detector 24 can emit a signal as soon as the unfastened multi-tap distribution apparatus has been detected. At 15 this time, the press rod 22 moves downward to press the cover (B or C) and the air tools also descends to fit with the screws such that the air tools 23 start to turn and fasten the screws for a preset time or till the air supply is out. In this way, the fastening job is completed. The press rod 22 and the detector 24 ascend as soon as the fastening job is finished. The chain 14 further moves to send next unfastened 20 multi-tap distribution apparatus in the frame 21 and the procedure of fastening job is performed once more. If the detector 24 is disposed at the front side of the frame 21, the detector 24 may emit a signal again during the unfastened multi-tap distribution apparatus passing over the detector 24. The detector 24 being disposed at the front side of the frame 21 or at the rear side of the frame 21 is an equivalent 25 way for the reset of the programmable control. For a single cover B system, a set of screw fastened device 2 is enough, and for double covers (B and C), two sets of screw fastened devices 2 can be provided for fastening the screws at different portions of the casing of the multi-tap distribution apparatus. It is noted that the moving principle for the single cover can 30 be applied for fastening double covers basically. It is appreciated from the preceding description that the present invention can provides a fastening job automatically so that a control of production quantity, a uniform quality of fastening, and a reduction of labor cost can be achieved effectively. 5 While the invention has been described with reference to a preferred embodiment thereof, it is to be understood that modifications or variations may be easily made without departing from the spirit of this invention, which is defined in the appended claims. WE CLAIMS 1. A system for fastening a casing of a multi-tap distribution apparatus, comprising: a conveyer, providing a flat work platform, a plurality of locating plates 5 being disposed above the work platform with an equal space apart from each other, each locating plate being fixedly attached with a locating base, the locating plate at an inner side thereof being fixedly attached to an endless chain, the chain meshing with a plurality of sprockets, and the sprockets being able to turn for running the fastening system; and 10 a screw fastened device, striding the work platform, providing a frame for an ascendable press rod, a plurality of ascendable air tools, and a detector being able to fixedly attached to the frame; whereby, the detector can send out a signal after detecting to stop the movable chain and the press rod descends to press against the casing; and 15 the air tools descend too to fit with the screws and rotate to fasten the cover and the lower base together. 2. The system for fastening a casing of a multi-tap distribution apparatus according to claim 1, wherein a programmable automatic control is provided. 3. The system for fastening a casing of a multi-tap distribution apparatus 20 according to claim 1, wherein the press rod and the air tools are actuated by hydraulic cylinders or air cylinders to ascend or descend. 4. The system for fastening a casing of a multi-tap distribution apparatus according to claim 1, wherein the detector can be disposed at a front side or a rear side of the frame. 25 5. The system for fastening a casing of a multi-tap distribution apparatus according to claim 1, wherein it is possible to provide two sets of screw fastened devices or more. 6. A method for fastening a casing of a multi-tap distribution apparatus, comprising following steps: (a) closing a base and a cover on the casing of the multi-tap distribution apparatus, inserting screws in the casing, and placing the multi-taD distribution 5 apparatus on a locating base; (b) the multi-tap distribution apparatus being delivered to a thread fastening device by a conveyer, and than the conveyer being stop; (c) a plurality of air tools of a screw fastened device fitting with and turning a nut on the respective screw till being fastened; and 10 (d) the air tools leaving the multi-tap distribution apparatus and the conveyer starting to move again. 7. The method for fastening a casing of a multi-tap distribution apparatus according fo claim 6, wherein the conveyer being stop moving and the air tools being actuated are controlled by a preset program respectively. 15 8. The method for fastening a casing of a multi-tap distribution apparatus according claim 6, wherein a step of pressing can be added between (a) and (c) and the step of pressing is a press rod to press and retain the casing of the multi-tap distribution apparatus in place. Date 16in August 2001 SHYAM SUNDER IYER ADVOCATE & PATENT AGENT TAS &CO. ADVOCATES

Documents:

807-mum-2001-assignment(30-8-2001).pdf

807-mum-2001-claims(granted)-(20-8-2001).doc

807-mum-2001-claims(granted)-(20-8-2001).pdf

807-mum-2001-correspondence(21-12-2004).pdf

807-mum-2001-correspondence(ipo)-(24-8-2004).pdf

807-mum-2001-drawing(20-8-2001).pdf

807-mum-2001-form 1(20-8-2001).pdf

807-mum-2001-form 19(15-11-2001).pdf

807-mum-2001-form 2(granted)-(20-8-2001).doc

807-mum-2001-form 2(granted)-(20-8-2001).pdf

807-mum-2001-form 3(30-8-2001).pdf

807-mum-2001-form 5(20-8-2001).pdf

807-mum-2001-power of authority(20-8-2001).pdf

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