Title of Invention

LAMP MOUNTING STRUCTURE IN A MOTORCYCLE

Abstract

ABSTRACT LAMP MOUNTING STRUCTURE IN A MOTORCYCLE A lamp structure in a motorcycle comprising a lamp unit (60) including a winker lamp (61) and a headlamp (62) disposed on a base (63) to be mounted on the front cowl (34) from the rear is mounted on said front cowl (34) in such a manner that said winker lamp (61) and headlamp (62) are exposed through the openings (58) formed at the front of said front cowl (34), the said lamp structure characterized in that a bulb maintenance lid (108) for covering the mounting portion for mounting the winker lamp bulb (66) constituting a part of said winker lamp (61) on the rear potion of said base (63) is detachably attached on top of the rear portion of the front cowl (34),wherein said bulb maintenance lid is fastened to a metallic supporting plate which is secured to the front cowl.

Full Text

FORM 2 THE PATENTS ACT 1970 [39 OF 1970] COMPLETE SPECIFICATION [See Section 10] "LAMP MOUNTING STRUCTURE IN A MOTORCYCLE" HONDA GIKEN KOGYO KABUSHIKI KAISHA, a corporation of Japan, having a place of business at 1-1, Minamiaoyama 2-chome, Minato-ku, Tokyo, Japan, The following specification particularly describes the nature of the invention and the manner in which it is to be performed:- GRANTED 29-8-2007 The present invention relates to lamp mounting structure in a motorcycle. [Detailed Description of the Invention] [Technical Field of the Invention] The present invention relates to a motorcycle wherein a head pipe at the front end of a vehicle body frame is covered by a front cowl supported on the vehicle body frame from the front, and a lamp unit including a winker lamp and a headlamp being disposed on a base to be mounted on the aforementioned front cowl from the rear is mounted on the front cowl in such a manner that the aforementioned headlamp and winker lamp are faced toward the opening formed at the front of the aforementioned front cowl, and more specifically, to an improved mounting structure of the winker lamp and the headlamp. [0002] [Description of the Related Art] Hitherto, a motorcycle provided with a lamp unit including a winker lamp and a headlamp mounted on the front cowl from the rear side is already known, for example, in JP-A-11-278334. [0003] [Problems to be Solved by the Invention] In the lamp unit in the related art described above; a maintenance lid is detachably attached on the front surface of the front cowl upwardly of the opening formed on the front portion of the front cowl for exposing the headlamp and the winker lamp therethrough, so that maintenance such as replacement of winker lamp bulb is performed by removing the maintenance lid. [0004] Therefore, provision of the maintenance lid on the front surface of the front cowl may decrease flexibility in design of the front cowl. In addition, in the case where a windscreen is continuously provided above the front cowl and the distance between the aforementioned opening and the windscreen is limited, a space for disposing the aforementioned maintenance lid may not be secured. [0005] In view of such circumstances, an object of the present invention is to provide a lamp mounting structure for a motorcycle in which flexibility in design of the front cowl is increased, and simultaneously, maintenanceability of the winker lamp valve is increased. [0006] [Means for Solving the Problem] In order to achieve the above-described object, the invention according to Claim 1 is a motorcycle wherein a head pipe at the front end of a vehicle body frame is covered by a front cowl supported on the vehicle body frame from the front, and a lamp unit including a winker lamp and a headlamp being disposed on a base to be mounted on the aforementioned front cowl from the rear is mounted on the front cowl in such a manner that the aforementioned winker lamp and headlamp are exposed through the openings formed at the front of the aforementioned front cowl, characterized in that a bulb maintenance lid for covering the portion of the winker lamp bulb constituting a part of the aforementioned winker lamp to be mounted on the rear portion of the aforementioned base is detachably attached on top of the rear portion of the front cowl. [0007] According to the structure of the invention as set forth in Claim 1, since the bulb maintenance lid may be detachably attached on top of the rear portion of the front cowl while covering the mounting portion for mounting the winker lamp bulb on the rear portion of the base, maintenance of the winker lamp bulb may be done easily by removing the bulb maintenance lid. In addition, since it is not necessary to provide the bulb maintenance lid on the front surface of the front cowl, flexibility in design of the front cowl may be increased. [0008] In addition to the structure of the invention according to Claim 1, the invention as set forth in Claim 2 is characterized in that a meter unit to be disposed behind the aforementioned front cowl is mounted on a supporting stay fixed to the aforementioned head pipe, and the aforementioned bulb maintenance lid is detachably attached on top of the rear portion of the front cowl while covering the portion of the aforementioned meter unit to be mounted on the aforementioned supporting stay. According to such arrangement, maintenance of the meter unit may also be done by removing the bulb maintenance lid. [0009] In addition to the structure of the invention according to Claim 1 or 2, the invention as set forth in Claim 3 is characterized in that the aforementioned front cowl includes a pair of left and right side cowls disposed on both sides of the aforementioned head pipe and supported by the vehicle body frame, and a center cowl disposed forwardly of the aforementioned head pipe to be connected to both of the side cowls, and in that the aforementioned lamp unit is mounted on both of the side cowls and the center cowl respectively. In this arrangement, since the front cowl is constructed of the center cowl and the pair of side cowls, flexibility in design is further increased in comparison with the case in which the front cowl is formed of a single piece of member. In addition, since the lamp unit also serves as a joint between both of the side cowls and the center cowl, both of the side cowls and the center cowl may be strongly joined with a small number of components. [0010] In addition to the structure of the invention according to any one of Claims l to 3, the invention as set forth in Claim 4 is further characterized in that the aforementioned winker lamp bulb is mounted on the base so as to be positioned at the center of a reflecting mirror portion provided on the aforementioned base, in that a reflector of the aforementioned headlamp is supported on the aforementioned base so as to be capable of swinging in the vertical direction at the position where the reflector is partially overlapped with the aforementioned reflecting mirror portion when viewed from the front, in that the aforementioned reflector is provided with a reflecting wall portion for reflecting a light from the aforementioned winker lamp toward the front so as to extend toward the aforementioned reflecting mirror portion at the part corresponding to the aforementioned reflecting mirror portion, and in that the reflecting wall portion is formed in a shape which can avoid interference with the aforementioned reflecting mirror portion in association with the swinging movement of the aforementioned reflector. [0011] According to such structure of the invention as set forth in Claim 4, the headlamp and the winker lamp may be disposed close to each other while preventing a light emitted forward from the winker lamp from being interrupted by the headlamp, whereby the lamp unit may be formed compactly. [0012] [Preferred Embodiment of the Invention] Referring now to an example of the present invention shown in the attached drawings, an embodiment of the present invention will be described. [Brief Description of the Drawings] [Fig 1] . Fig. 1 is a side view of a motorcycle. [Fig. 2] Fig. 2 is an enlarged view of a principal portion of Fig. 1. [Fig. 3] Fig. 3 is a drawing viewed in the direction represented by an arrow 3 in Fig. 2. [Fig. 4] Fig. 4 is a drawing viewed in the direction represented by an arrow 4 in Fig. 2. [Fig. 5] Fig. 5 is an enlarged cross section taken along the line 5-5 in Fig. 2. [Fig. 6] Fig. 6 is an enlarged cross section taken along the line 6-6 in Fig. 2. [Fig. 7] Fig. 7 is an enlarged cross section taken along the line 7-7 in Fig. 2. [Fig. 8] Fig. 8 is a cross sectional view of a lamp unit taken along the line 8-8 in Fig. 3. [Fig. 9] Fig. 9 is an enlarged cross section taken along the line 9-9 in Fig. 3. [Fig. 10] Fig. 10 is an enlarged cross section taken along the line 10-10 in Fig. 3. [Fig. 11] Fig. 11 is a perspective view of a lamp unit in a state in which a cover is removed. [Fig. 12] Fig. 12 is a side view of a supporting stay. [Fig. 13] Fig. 13 is a drawing viewed in the direction of an arrow 13 in Fig. 12. [Fig. 14] Fig. 14 is a side view of a bulb maintenance lid. [Fig. 15] Fig. 15 is a drawing viewed in the direction represented by an arrow 15 in Fig. 14. [Fig. 16] Fig. 16 is an enlarged cross section taken along the line 16-16 in Fig. 2. [Fig. 17] Fig. 17 is an enlarged cross section taken along the line 17-17 in Fig. 2. [Fig. 18] Fig. 18 is a drawing corresponding to Fig. 2 in a state in which the bulb maintenance lid is removed. [0013] Fig. 1 to Fig. 18 show an embodiment of the present invention. Fig. 1 is a side view of a motorcycle; Fig. 2 is an enlarged view of a principal portion of Fig. 1; Fig. 3 is a drawing viewed in the direction represented by an arrow 3 in Fig. 2; Fig. 4 is a drawing viewed in the, direction represented by an arrow 4 in Fig. 2; Fig. 5 is an enlarged cross section taken along the line 5-5 in Fig. 2; Fig. 6 is an enlarged cross section taken along the line 6-6 in Fig. 2; Fig. 7 is an enlarged cross section taken along the line 7-7 in Fig. 2; Fig. 8 is a cross section of a lamp unit taken along the line 8-8 in Fig. 3; Fig. 9 is an enlarged cross section taken along the line 9-9 in Fig. 3; Fig. 10 is an enlarged cross section taken along the line 10-10 in Fig. 3; Fig. 11 is a perspective view of a lamp unit in a state in which a cover is removed; Fig. 12 is a side view of a supporting stay; Fig. 13 is a drawing viewed in the direction-of an arrow 13 in Fig. 12; Fig. 14 is a side view of a bulb maintenance lid; Fig. 15 is a drawing viewed in the direction represented by an arrow 15 in Fig. 14; Fig. 16 is an enlarged cross section taken along the line 16-16 in Fig. 2; Fig. 17 is an enlarged view taken along the line 17-17in Fig. 2; and Pig. 18 is a drawing corresponding to Fig. 2 in a state in which the bulb maintenance lid is removed. [0014] In Fig. 1, a vehicle body frame F of a motorcycle includes a head pipe 12 supporting a front fork 11 so as to be capable of turning, a pair of left and right mainframes 13... extending from the head pipe 12 rearward and downward, a pair of left and right intermediate frames 14... continuing from the rear ends of both of the mainframes 13... and extending in the vertical direction, a pair of left and right seat rails 15... extending from the upper portion of both of the intermediate frames 14... rearward and upward, and rear stays 16.. .extending from the midsections of both of the intermediate frames 14 rearward and upward and connected to the midsections of the seat rails 15.... [0015] A front wheel WF is rotatably supported at the lower end of the front fork 11, and a bar handle 17 is connected at the upper end of the front fork 11. A front fender 18 for covering over the upper portion of the front wheel WF is supported by the front fork 11. [0016] A power unit P including an engine E and a transmission M and being disposed below the mainframe 13 is suspended from the vehicle body frame F so as to be supported by the mainframes 13... and the intermediate frames 14 [0017] A pivot 19 is provided on the intermediate frames 14..., which supports the front ends of a pair of left and right rear forks 20... so as to be capable of swinging in the vertical direction at both ends thereof, and a rear wheel WR is rotatably supported between the rear ends of both rear forks 20 The output of the power unit P is transmitted to the rear wheel WR via power transmitting means 22 having an endless chain 21, and the power transmitting means 22 is disposed on the left side of the power unit P in the state of facing in the direction of travel of the motorcycle. A chain cover 23 for covering the chain 21 from above is supported by the left rear fork 20, and a rear cushion units 24 are disposed between the upper portion of the intermediate frames 14... and the rear forks 20... respectively. [0018] A fuel tank 25 supported by the mainframes 13... is disposed above the engine E, and a main seat 26 for allowing the rider to sit is disposed behind the fuel tank 25 so as to be supported by the intermediate frames 14 ... and the seat rails 15..., and a pillion seat 27 for allowing a fellow passenger to sit is disposed behind the main seat 26. [0019] An air cleaner 28 is disposed below the front portion of the main seat 26, and the air cleaner 28 is connected to an air intake port of a cylinder head 30 in the engine E via a carburetor 29 disposed below the fuel tank 25. A radiator 31 is disposed forwardly of the engine E, and an exhaust pipe 32 continuing into an exhaust port of the cylinder head 30 extends to the right side of the rear wheel WR through downwardly of the engine E, and then connected to an exhaust muffler 33 disposed on the right side of the rear wheel WR. [0020] The front of the head pipe 12 of the vehicle body frame F is covered by a front cowl 34 formed of synthetic resin, and the front portion of the mainframes 13..., the radiator 31, the front portion and the lower portion of the power unit p are covered by a lower cowl 35 formed of synthetic resin continuing to the front cowl 34. [0021] The rear portion of the vehicle body frame F is mounted with a rear cowl 38 for covering the rear portion of the vehicle body frame F and with a rear fender 39 disposed below the rear cowl 38 for covering the rear wheel WR from above. The rear fender 39 is provided with a pair of left and right plate mounting portions 40... for mounting a license plate, not shown. [0022] A rear combination lamp 41 is disposed in the rear cowl 38 in such a manner that the rear portion of the rear combination lamp 41 is exposed from the rear end of the rear cowl 38 toward the rear. [0023] in Fig. 2 to Fig. 4, the front cowl 34 includes a pair of left and right side cowls 42 and 42 supported by the vehicle body frame F disposed on both sides of the head pipe 12, and a center cowl 43 disposed ahead of the head pipe 12 and connected to both of the side cowls 42 and 42. [0024] As shown in Fig. 5, the lower cowl 35 is integrally formed at the upper portion thereof with a connecting plate 35a to be inserted into the inside of the lower portion of the side cowl 42. On the other hand, recesses 42a... dished inwardly are formed at two points on the lower portion of the side cowl 42 and the aforementioned connecting plate 35a is attached with substantially U-shaped metallic nuts 44 at the positions corresponding to the recesses 42a.... Therefore, the screw members 45... having enlarged heads 45a to be accommodated in the recesses 42a respectively are passed through the lower portion of the side cowl 42, the aforementioned nuts 44 and the connecting plate 35a, and are screwed into the nuts 44.... In other words, the two points on the lower portion of the side cowl 42 are fastened to the upper portion of the lower cowl 35 respectively. [0025] As shown in Fig. 6, the side cowl 42 is integrally formed at the rear portion thereof with a mounting plate 42b to be abutted to a supporting bracket 46 secured on the mainframe 13 of the vehicle body frame F, and screw member 47 inserted through the mounting plate 42b and the supporting bracket 46 is screwed into a weld nut 48 attached on the aforementioned supporting bracket 46. In other words, the side cowl 42 is supported by the main frame 13 of the vehicle body frame F. [0026] A windscreen 49 for protecting the rider sitting on the main seat 26 from wind or rain is mounted above the side cowls 42, 42 and the center cowl 43, or above the front cowl 34, and mirrors 50, 50 for viewing backward are disposed on the left and right of the window screen 49. [0027] Referring also to Fig. 7, the mirror 50 is mounted at the extremity of a supporting arm 51 whereof the proximal end is secured to the front surface of the upper portion of the side cowl 42, and the supporting arm 51 is constructed of a supporting arm body 52 formed of synthetic resin and a metallic supporting shaft 53 embedded therein. [0028] The supporting shaft 53 includes a contact flange portion 53a to be brought into contact with the front surface of the side cowl 42 together with the proximal end of the supporting arm body 52 and a screw shaft 53b projecting from the contact flange 53a, and the screw shaft 53b passes through a mounting hole 54 formed on the side cowl 42. A cylindrical metal spacer 55 having a length corresponding to the thickness of the side cowl 42 is inserted into the mounting hole 54 so as to surround the screw shaft 53b, and a mounting plate 56 to be fixed to the spacer 55 abuts to the back surface of the side cowl 42 around the mounting hole 54. Therefore, by engaging and fastening a nut 57 onto the portion of the screw shaft 53b projected from the aforementioned mounting plate 56, the proximal portion of the supporting arm 51 is fixed to the side cowl 42. The aforementioned mounting plate 56 is provided on a supporting stay 93 that will be described later. [0029] On the front surface of the front cowl 34 is formed with a pair of left and right openings 58, 58, and these openings 58, 58 are defined by the front edges of both side cowls 42, 42 and both side edges of the center cowl 43. [0030] A lamp unit 60 is mounted on the front cowl 43 from behind, and the lamp unit 60 is provided with two sets of pair of winker lamps 61, 61 and headlamps 62, 62 to be exposed from the aforementioned openings 58, 58 respectively. [0031] In Fig. 8 to Fig. 11, the lamp unit 60 includes a base 63 formed of synthetic resin, a cover 64 of transparent synthetic resin to be connected to the base 63, a reflector 65 to be stored between the base 63 and the cover 64, a pair of winker lamp bulbs 66... to be mounted on the base 63, and a pair of headlamp bulbs 67... to be mounted on the reflector 65. [0032] The base 63 is provided with a pair of first reflecting mirror portions 63a... of bowl shape opening forwardly of the motorcycle at the positions corresponding to the outer upper portions of the openings 58, 58 and having mirror surfaces inside thereof. The cover 64 having lens portions 64a, 64a common to the winker lamps 61... and the headlamps 62... for being exposed through the openings 58, 58, and being colored in black over the portion other than the lens portions 64a, 64a, is attached from the front on the outer peripheral edge of the base 63 with a seal member 68 interposed therebetween so as to engage resiliently at a plurality of positions along its periphery. [0033] The reflector 65 includes a pair of second reflecting mirror portions 65a... disposed at the positions obliquely inward, downward and forward of the first reflecting mirror portions 63a... and formed into a bowl-shape opening toward the front of the motorcycle with a mirror finished surface on its interior face, and a joint section 65b for joining the second reflecting mirror portions 65a..., and is disposed between the base 63 and the cover 64. [0034] Therefore, the winker lamps 61... include a winker lamp bulbs 66... disposed at the centers of the first reflecting mirror portions 63a, and the winker lamp bulbs 66... are detachably mounted on the case 63 from behind. [0035] The headlamps 62... include the headlamp bulbs 67... disposed at the centers of the second reflecting mirror portions 65a..., and the headlamp bulbs 67...are detachably mounted on the reflector 65 from behind. Maintenance cylinders 63b... for replacing the headlamp bulbs 67... are provided on the base 63 at the positions corresponding to the second reflecting mirror portions 65a, and the rear end openings of the maintenance cylinders 63b... are closed by caps 69... that allows wires 70. .. continuing to the headlamp bulbs 67... to be drawn hermetically. [0036] The reflector 65 is supported on the base 63 so as to be capable of swinging in the vertical direction, and is embedded with shafts 71... projecting toward the base 63 on the upper left and right sides thereof, and a spherical portions 71a... provided at the extremities of the shafts 71... are caught by the base 63 so as to be capable of swinging motion. As is clearly shown in Fig. 10, a nut 72 is rotatably engaged at the lower portion of the joint section 65b provided on the reflector 65 for joining the pair of second reflecting mirror portions 65a..., and a bolt 73 hermetically and rotatably passed through the base 63 is screwed into the aforementioned nut 72 in such a manner that an enlarged head 73a engages the backside of the base 63. [0037] Therefore, by the forward and backward movement of the nut 72 in association with the rotational operation of the bolt 73, the reflector 65 swings in the vertical direction, and thus the light axes of the headlamps 62, 62 are adjusted. [0038] The second reflecting mirror portions 65a... of the reflector 65 are disposed so as to overlap the first reflecting mirror portions 63a... of the winker lamps 61... when viewed from the front, and reflecting wall portions 74... for reflecting a light from the winker lamps 61.. .toward the front while preventing light from the winker lamps 61... from entering the backside of the second reflecting mirror portions 65a... as much as possible are provided on the reflector 65 at the position corresponding to the first reflecting mirror portions 63a, and these reflecting wall portions 74 ... continue into the reflector 65 so as to extend toward the first reflecting mirror portions 63a.... [0039] Therefore, since the reflector 65 is adapted to swing in the vertical direction as described above, notches 75... for avoiding interference with the first reflecting mirror portions 63a... is provided as shown in Fig. 11 at the ends of the side of the first reflecting mirror portions 63a... of the reflecting wall portions 74... for avoiding interference between the reflecting wall portions 74... and the first reflecting mirror portions 63a... depending on the swinging position. In other words, the reflecting wall portions 74... are formed in the shape that can avoid the interference with the first reflecting mirror portions 63a... in association with the swinging motion of the reflector 65. [0040] The lamp unit 60 thus constructed is mounted on the side cowls 42, 42 and the center cowls 43 constituting the front cowl 34. In other words, mounting plates 76... formed on the left and right upper sides of the base 63 and a mounting plates 77... formed on the left and right lower sides of the base 63 are fastened by screw members 80..., 81... to the bosses 78 ..., 79... formed on the upper portion and the lower portion of the respective side cowls 42, 42, and the mounting plate 82 formed at the upper center of the base 63 is secured by a screw member 84 to the boss 83 formed on the upper portion of the center cowl 43. [0041] A meter unit 88 including a speed meter 89, a tachometer 90, a fuel meter 91, a coolant temperature gauge 92, and the like is disposed behind the front cowl 34, and the meter unit 88 is mounted to the supporting stay 93 to be fixed to the head pipe 12 of the vehicle body frame F at the position obliquely rearward and upward of the lamp unit 60. [0042] As shown in Fig. 12 and Fig. 13, the supporting stay 93 includes a supporting plate 95 formed in a substantially U-shape opening downward so as to sandwich a bracket 94 provided on the head pipe 12 from both sides, a first supporting pipe 96 extending forward from the supporting plate 95, a second supporting pipe 97 extending from the front portion of the supporting pipe 96 toward the left and the right and bent so as to be higher with the distance from the center, and a third supporting pipe 98 extending from the midsection of the first supporting pipe 96 toward the left and the right and bent toward the rear. The supporting stay 93 is fixed to the head pipe 12 by screwing bolts 100... to be inserted through the supporting plate 95 and the bracket 94 into a pair of nuts 99, 99 attached on the supporting plate 95. [0043] The mounting plates 56 are attached on both ends of the pipe 97, and the proximal ends of the supporting arms 51, 51 continuing to the mirrors 50, 50 are fixed to both ends of the second supporting pipe 97 with the side cowls 42, 42 of the front cowl 34 interposed therebetween. [0044] The first supporting pipe 96 is provided with a mounting 101 for placing the meter unit 88 thereon at the position between the second and third supporting pipes 97, 98, and the mounting 101 is formed with a fitting hole 102 for fitting a projection 103 formed on the bottom of the meter unit 88. [0045] Both ends of the third supporting pipe 98 are flattened to form flat mounting portions 104, 104, and weld nuts 105... are attached on the lower surface of the mounting portions 104.... Therefore, the meter unit 88 is provided with arm portions 88a... to be placed on the mounting portions 104, 104, and thus the meter unit 88 is mounted on the supporting stay 93 by bolts 106... being inserted into the arm portions 88a... and a mounting portions 104..., screwed into the aforementioned weld nuts 105..., and fastened. [0046] Bulb maintenance lids 108... for covering the mounting portion for mounting the winker lamp bulbs 66... onto the rear portion of the base 63 and the mounting portion for mounting the meter unit 88 on the supporting stay 93 or the bolts 106.. . from the upper rear, and for covering the mounting portion for mounting the side cowls 42, 42 on both ends of the second supporting pipe 97 of the supporting Stay 93 from behind are detachably attached on the upper surfaces of the rear portions the front cowls 34 on both sides. [0047] In Fig. 14 and Fig. 15, the bulb maintenance lid 108 is formed into a shape corresponding to the upper surface of the rear portion of the side cowl 42 so as to cover the inside of the upper surface of the rear portion of the side cowl 42 of the front cowl 34, and rear lower portion thereof is formed with a recess 109 having a through hole 110 on its closed end so as to dish downward. A through hole 111 is formed on the upper portion on the front side of the bulb maintenance lid 108. In addition, a plurality of, for example, two engaging projections 112, 112 for engaging the upper rear portion of the side cowl 42 from inside are formed so as to project from the side edge of the bulb maintenance lid 108. [0048] In Fig. 16, a joint plate 42d for receiving the recess 109 on the bulb maintenance lid 108 is integrally formed on top of the rear portion of the side cowl 42, and a metal nut 113 of substantially U-shape is mounted on the joint plate 42d. Therefore, a screw member 114, having an enlarged head 114a to be accommodated in the recess 109, to be inserted into the through hole 110 is inserted through the aforementioned nut 113 and the joint plate 42d and fastened by the nut 113. [0049] In Fig. 17, a pair of bosses 115, 115 are formed upright on the rear surface of the upper portion of the side cowl 42 at the position corresponding to the through hole 111 of the bulb maintenance lid 108, and a metallic supporting plate 118 is secured to both bosses 115, 115 with screw members 116, 116. The supporting plate 118 is formed with a flat mounting plate 118a to be abutted to the front surface of the bulb maintenance lid 108 around the aforementioned through hole 111, and a weld nut 119 is secured on the front surface of the mounting plate 118a. Therefore, the screw member 120 to be inserted through the through hole 111 is passed through the aforementioned mounting plate 118a and secured by the weld nut 119. [0050] in other words, the bulb maintenance lid 108 may be mounted on the front cowl 34 by fastening the screw members 114 and 112, and may be removed from the front cowl 34 by loosening the screw members 114 and 112 as shown by a solid line in Fig. 18. [0051] The operation of the present embodiment will be described. The lamp unit 60 including the winker lamps 61... and the headlamps 62... both in pairs disposed on the base 63 to be mounted on the front cowl 34 from behind is mounted on the front cowl 34 to be supported on the vehicle body frame F so as to cover the head pipe 12 at the front end of the vehicle body frame F from the front in such a manner that the winker lamp 61 and the headlamp 62 are exposed through the pair of openings 58, 58 formed in front of the front cowl 34 respectively, and the bulb maintenance lids 108... for covering the mounting portion for mounting the winker lamp bulbs 66... on the rear portion of the base 63 is detachably mounted on top of the rear portion of the front cowl 34. [0052] Therefore, as shown in Fig. 18, maintenance of the winker lamp bulbs 66... may easily be performed by removing the bulb maintenance lids 108.... In addition, since it is not necessary to provide a bulb maintenance lid on the front surface of the front cowl 34, flexibility in design of the front cowl 34 may be increased. [0053] The meter unit 88 to be disposed behind the front cowl 34 is mounted on the supporting stay 93 to be fixed to the head pipe 12, and the bulb maintenance lids 108... are detachably mounted on top of the rear portion of the front cowl 34 so as to cover the mounting portion for mounting the meter unit 88 to the supporting stay 93 . Therefore, maintenance of the meter unit 88 may also be performed by removing the bulb maintenance lids 108 [0054] The front cowl 34 includes a pair of left and right side cowls 42, 42 disposed on both sides of the head pipe 12 and supported by the vehicle body frame F, and the center cowl 43 disposed ahead of the head pipe 12 and connected to both of the side cowls 42, 42, and thus flexibility in design may further be increased in comparison with the case of constructing the front cowl of a single member. [0055] The lamp unit 60 is mounted on both of the side cowls 42,42 and the center cowl 43 respectively, and thus also serves as a joint between both of the side cowls 42, 42 and the center cowl 43, both of the side cowls 42, 42 and the center cowl 43 may be strongly joined with a small number of components. [0056] Furthermore, the winker lamp bulb 66 is mounted on the base 63 so as to be positioned at the center of the first reflecting mirror portion 63a provided on the base 63, the reflector 65 of the headlamp 62 is supported on the base 63 so as to be capable of swinging in the vertical direction at the position where the reflector overlaps the first reflecting mirror portion 63a when viewed from the front, and the reflector 65 is provided with a reflecting wall portion 74 for reflecting a light from the winker lamp 61 toward the front so as to extend toward the first reflecting mirror portion 63a at the part corresponding to the first reflecting mirror portion 63a. In addition, since the reflector 65 is adapted to swing in the vertical direction, the aforementioned reflecting wall portion 74 is formed in the shape which can avoid interference with the first reflecting mirror portion 63a in association with the swinging motion of the reflector 65. [0057] Therefore, the winker lamp 61 and the headlamp 62 may be disposed close to each other while preventing a light emitted forward from the winker lamp 61 from being interrupted by the headlamp 62 as much as possible, whereby the lamp unit 60 may be formed compactly. [0058] Although an embodiment of the present invention has been described thus far, the present invention is not limited to the above-described embodiment, and various modifications in design may be made without departing from the present invention stated in the claims. [0059] [Effect of the invention] As described thus far, according to the invention as stated in Claim 1, maintenance of the winker lamp bulb may be done easily by removing the bulb maintenance lid, and flexibility in design of the front cowl may be increased. [0060] According to the invention as stated in Claim 2, maintenance of the meter unit may also be done by removing the bulb maintenance lid. [0061] According to the invention as stated in Claim 3, flexibility in design of the front cowl may further be increased, and in addition, both of the side cowls and the center cowl may be strongly joined with a small number of components. [0062] According to the invention as stated in Claim 4, the headlamp and the winker lamp may be disposed close to each other while preventing a light emitted forward from the winker lamp from being interrupted by the headlamp as much as possible, whereby the lamp unit may be formed compactly. [Reference Numerals] 12...head pipe 34...front cowl 42...side cowl 43...center cowl 58 opening 60 — lamp unit 61...winker lamp 62...headlamp 63 base 63a...reflecting mirror portion 65...reflector 66...winker lamp bulb 74...reflecting wall portion 88...meter unit 93 .. .supporting stay 108...bulb maintenance lid F...vehicle body frame We claim: 1. A lamp structure in a motorcycle comprising a lamp unit (60) including a winker lamp (61) and a headlamp (62) disposed on a base (63) to be mounted on the front cowl (34) from the rear is mounted on said front cowl (34) in such a manner that said winker lamp (61) and headlamp (62) are exposed through the openings (58) formed at the front of said front cowl (34), the said lamp structure characterized in that a bulb maintenance lid (108) for covering the mounting portion for mounting the winker lamp bulb (66) constituting a part of said winker lamp (61) on the rear potion of said base (63) is detachably attached on top of the rear portion of the front cowl (34), wherein said bulb maintenance lid is fastened to a metallic supporting plate which is secured to the front cowl. 2. A lamp mounting structure for a motorcycle as claimed in claim 1, wherein a meter unit (88) to be disposed behind said front cowl (34) is mounted on a supporting stay (93) fixed to head pipe (12), and said bulb maintenance lid (108) is detachably attached on top of the rear portion of the front cowl (34) while covering the portion of said meter unit (88) to be mounted on said supporting stay (93). 3. A lamp mounting structure for a motorcycle as claimed in claim 1 or 2, wherein said front cowl (34) includes a pair of left and right side cowls (42) disposed on both sides of said head pipe (12) and supported by the vehicle body frame (F), and a center cowl (43) disposed forwardly of said head pipe (12) to be connected to both of the side cowls (42), and said lamp unit (60) is mounted on both of the side cowls (42) and the center cowl (43) respectively. 4. A lamp mounting structure for a motorcycle as claimed in any one of claim 1 to 3, wherein said winker lamp bulb (66) is mounted on the base (63) so as to be positioned at the center of a reflecting mirror portion (63a) provided on said base (63), in that a reflector (65) of said headlamp (62) is supported on said base (63) so as to be capable of swinging in the vertical direction at the position where the reflector (65) is partially overlapped with said reflecting mirror portion (63a) when viewed from the front, in that said reflector (65) is provided with a reflecting wall portion (74) for reflecting a light from said winker lamp (61) toward the front so as to extend toward said reflecting mirror portion (63a) at the part corresponding to said reflecting mirror portion (63a), and the reflecting wall portion (74) is formed in a shape which can avoid interference with said reflecting mirror portion (63a) in association with the swinging movement of said reflector (65). 5. A lamp mounting structure for a motorcycle substantially as hereinbefore described with reference to the accompanying drawings. Dated this 16th day of January, 2003 [RAJANAILAVADI] OF REMF.RY & SAGAR ATTORNEY FOR THE APPLICANTS

Documents:

70-mum-2003 abstract(29-8-2007).pdf

70-mum-2003 cancelled pages(29-8-2007).pdf

70-mum-2003 claims(29-8-2007).pdf

70-mum-2003 correspondence(29-5-2007).pdf

70-mum-2003 correspondence(ipo)(15-5-2007).pdf

70-mum-2003 drawing pages(29-8-2007).pdf

70-mum-2003 form 1(17-1-2003).pdf

70-mum-2003 form 13(29-8-2007).pdf

70-mum-2003 form 18(8-12-2006).pdf

70-mum-2003 form 2(granted)(29-8-2007).pdf

70-mum-2003 form 3(15-4-2004).pdf

70-mum-2003 form 3(17-1-2003).pdf

70-mum-2003 form 3(29-8-2007).pdf

70-mum-2003 form 5(17-1-2003).pdf

70-mum-2003 petition under rule 137(29-8-2007).pdf

70-mum-2003 petition under rule 138(29-8-2007).pdf

70-mum-2003 power of authority(29-8-2007).pdf

70-mum-2003 power of authority(5-5-2003).pdf

70-mum-2003-abstract(29-8-2007).doc

70-mum-2003-claims(granted)-(29-8-2007).doc

70-mum-2003-form 2(granted)(29-8-2007).pdf

70-mum-2003-form 2(granted)-(29-8-2007).doc

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