Title of Invention	"COMBINATION SWITCH COVER ATTACHMENT STRUCTURE OF MOTORCYCLE"
Abstract	[Solving Means] A switch cover 43 is formed to have a shape of a cup with a bottom which has an opening in its lower portion. In addition, screw insertion holes 274 in a cover attachment stay 122 for attaching the switch cover 43 to a top bridge 41 are fastened to the switch cover 43 from thereunder at positions above, an edge of the opening 241. Moreover, screw insertion holes 273 in the cover attachment stay 122 are provided below the screw insertion holes 274 and 274 and are fastened to a front face 224 of the top bridge 41 from the front. [Effects] The screw insertion holes at the switch cover side are fastened at the positions above the edge of the opening. Furthermore, fastening directions of the screw insertion holes at the switch cover side and the screw insertion holes at the top bridge side are different from each other. Accordingly, it is difficult to detach the switch cover. Moreover, a periphery of a combination switch is simplified. In addition, respective attachment portions at the switch cover side and at the top bridge side are not visible from the above. Thus, external appearance can be improved. [Selected Drawing] Fig. 3

Title of Invention

"COMBINATION SWITCH COVER ATTACHMENT STRUCTURE OF MOTORCYCLE"

Abstract

[Solving Means] A switch cover 43 is formed to have a shape of a cup with a bottom which has an opening in its lower portion. In addition, screw insertion holes 274 in a cover attachment stay 122 for attaching the switch cover 43 to a top bridge 41 are fastened to the switch cover 43 from thereunder at positions above, an edge of the opening 241. Moreover, screw insertion holes 273 in the cover attachment stay 122 are provided below the screw insertion holes 274 and 274 and are fastened to a front face 224 of the top bridge 41 from the front. [Effects] The screw insertion holes at the switch cover side are fastened at the positions above the edge of the opening. Furthermore, fastening directions of the screw insertion holes at the switch cover side and the screw insertion holes at the top bridge side are different from each other. Accordingly, it is difficult to detach the switch cover. Moreover, a periphery of a combination switch is simplified. In addition, respective attachment portions at the switch cover side and at the top bridge side are not visible from the above. Thus, external appearance can be improved. [Selected Drawing] Fig. 3

Full Text	[Detailed Description of the Invention] [0001] [Technical Field to Which the Invention Belongs] The present invention relates to a combination switch cover attachment structure of a motorcycle. [0002] [RelatedArt] As a combination switch cover attachment structure of a motorcycle, there has been known one which covers a periphery of a combination switch with a cover (for example, see patent document l). [0003] [Patent Document l] Published Utility Model Application Sho 57 (1982)-42146 (Page 1, Fig. 2) [0004] Fig. 2 of patent document 1 will be described below with reference to Fig. 9. Note that reference numerals are allotted again. Fig. 9 is a cross-sectional view showing a conventional combination switch cover attachment structure of a motorcycle. In Fig. 9, a part attachment seat 412 is attached to a top bridge 411 which connects both sides of an upper portion of a front fork with each other. A combination switch 413 is attached to the part attachment seat 412. A periphery of the combination switch 413 is covered with a cover 416 which is fixed by hooking . a claw 415 on a hole 414 provided in the part attachment seat 412. Note that reference numeral 417 is a handle pipe and reference numeral 418 is a meter. [0005] [Problems to be Solved by the Invention] The foregoing cover 416 is hooked on the hole 414 of the part attachment seat 412 by use of the claw 415. Thus, the cover may be detached by external forces. Therefore, there is scope for improvement in measures to prevent tampering with the combination switch 413. [0006] Moreover, in the periphery of the combination switch 413, the part attachment seat 412 and the cover 416 appear to be a cover having a two-part split structure. Thus, for example, if these part attachment seat 412 and cover 416 are set to be a cover, as a single-piece component, in the periphery of the combination switch 413, external appearance can be improved more. [0007] Accordingly, an object of the present invention is to improve a combination switch cover attachment structure of a motorcycle, whereby enhancing effects of tampering prevention and improving external appearance. [0008] [Means for Solving the Problems] In order to realize the aforementioned object, Claim 1 is characterized in that in a motorcycle, in which a combination switch is provided in a front portion of a top bridge connecting both left and right sides of an upper portion of a front fork and a periphery of the combination switch is covered with a switch cover, the switch cover is formed to have a shape of a cup with a bottom which has an opening in its lower portion; an attachment portion at the switch cover side in a cover attachment stay for attaching the switch cover to the top bridge is fastened to the switch cover from therebelow at a position above an edge of the opening; and an attachment portion at the top bridge side in the cover attachment stay is provided below the attachment portion at the switch cover side and is fastened to a front face of the top bridge from the front. [0009] The attachment portion at the switch cover side in the cover attachment stay is fastened at the position above the edge of the opening. Furthermore, fastening directions of the attachment portion at the switch cover side and the attachment portion at the top bridge side are different from each other. Thus, it is difficult to detach the switch cover and effects of tampering prevention can be improved. [0010] Moreover, by use of the switch cover, that is a single-piece component, the periphery of the combination switch is simplified. Furthermore, the attachment portion at the switch cover side and the attachment portion at the top bridge side are not visible from the above. Thus, the external appearance can be improved. [0011] Claim 2 is characterized in that a meter is provided in front of the combination switch. The meter makes it possible to prevent tampering from the front with the combination switch. [0012] Claim 3 is characterized in that cable guide members for guiding cables are integrally provided in the cover attachment stay. The integration of the cover attachment stay and the cable guide makes it possible to reduce the number of components as well as the number of assembly steps. [0013] [Embodiments of the Invention] Based on the accompanying drawings, an embodiment of the present invention will be described below. Note that the drawings are viewed in the direction of reference numerals. [Brief Description of the Drawings] Fig. 1 is a side view of a motorcycle which adopts a combination switch cover attachment structure according to the present invention. Fig. 2 is a side view showing an upper portion of a front fork of the motorcycle and its periphery according to the present invention. Fig. 3 is a side view of a main portion, showing the upper portion of the front fork and its periphery according to the present invention. Fig. 4 is a perspective view showing a vehicle body front portion according to the present invention. Fig. 5 is a perspective view showing a state of attaching a switch cover according to the present invention. Fig. 6 is a perspective view showing a state of attaching a cover attachment stay according to the present invention. Fig. 7 is a perspective view showing a state of attaching a combination switch and the switch cover according to the present invention. Fig. 8 is a perspective view showing the entire cover attachment stay according to the present invention. Fig. 9 is a cross-sectional view showing a conventional combination switch cover attachment structure of a motorcycle. Fig. 1 is a side view of a motorcycle which adopts a combination switch cover attachment structure according to the present invention. The motorcycle 10 is a vehicle having the following structure. Specifically, a vehicle body frame 11 includes : a head pipe 12 provided in its front end; a main pipe 13 extended approximately backward and obliquely downward from the head pipe 12; a pivot plate 14 attached to a lower portion of the main pipe 13; a pair of seat rails 16 and 16 (only reference numeral 16 at the near side is shown) which are extended backward from both left and right sides of a rear portion of the main pipe 13; sub pipes 17 and 17 (only reference numeral 17 at the near side is shown) which are connected to rear portions of the seat rails 16 and 16 and the pivot plate 14, respectively; and a down pipe 18 extended linearly backward and obliquely downward from the above-described head pipe 12. A front fork 21 is attached to the head pipe 12 so as to be steerable, a front wheel 22 is attached to a lower end of the front fork 21 and a handle 23 is attached to an upper end of the front fork 21. Furthermore, a headlamp 26 and a meter 27 are supported by a front stay 24 provided in a front portion of the head pipe 12. A front number plate 31 is attached to the headlamp 26 by means of a number plate stay 28. A combination switch 42 including an ignition switch and a steering lock device is attached to a top bridge 41 which connects both left and right sides of an upper portion of the front fork 21. A periphery of an upper portion of the combination switch 42 is covered with a switch cover 43. [0014] Moreover, the motorcycle 10 is also a vehicle having the following structure. Specifically, a fuel tank 51 is attached to the main pipe 13 and a drain pipe 54 is extended from a cap 52 provided in a fill opening of the fuel tank 51 to a bottom wall 53 thereof. An upper end of a drain tube 56 is connected to a lower end of the drain pipe 54 and this drain tube 56 is allowed to hang downward approximately along the lower portion of the main pipe 13 and the pivot plate 14. The main pipe 13, front portions of the seat rails 16 and 16 and both sides of the sub pipes 17 and 17 are covered with side covers 65 and 65 (only reference numeral 65 at the near side is shown) which are divided into two, upper and lower, portions. Both sides of the rear portions of the seat rails 16 and 16, which are at the rear of the side covers 65 and 65, are covered with rear cowls 66 and 66 (only reference numeral 66 at the near side is shown). End portions of rear cushion units 68 and 68 (only reference numeral 68 at the near side is shown) are connected to a rear portion of a swing arm 67 and the seat rails 16 and 16, respectively, the swing arm 67 being attached to the pivot plate 14 so as to be swingable. [0015] Here, reference numeral 77 is a front fender which covers an upper side of the front wheel 22. Reference numerals 78 and 78 (only reference numeral 78 at the near side is shown) are left and right front cowls which cover sides of a vehicle body front portion including a front portion of the fuel tank 51. Reference numeral 81 is an engine attached to the main pipe 13, the pivot plate 14 and the down pipe 18. Reference numeral 83 is a transmission integrally provided to the engine at a rear portion thereof. Reference numeral 85 is a carburetor attached to the engine 81 via a suction pipe 86. Reference numeral 87 is an air cleaner connected to the carburetor 85 through a connecting tube 88. Reference numeral 91 is an exhaust pipe extended to the rear side of the body from an upper front portion of the engine 81. Reference numeral 92 is a muffler connected to a rear end of the exhaust pipe 91. Reference numeral 93 is a side stand. Reference numeral 94 is a rear wheel attached to a rear end of the swing arm 67. Reference numeral 96 is a rear fender which covers an upper side of the rear wheel 94. Reference numeral 97 is a rear number plate attached to the rear fender 96. Reference numeral 98 is a seat attached to the upper portions of the seat rails 16 and 16. Reference numeral 101 is a passenger grip. Reference numeral 102 is a taillamp. [0016] Fig. 2 is a side view showing an upper portion of the front fork of the motorcycle and its periphery according to the present invention. Fig. 2 shows that the meter 27 is disposed in front of the switch cover 43 in such a manner that a cover attachment stay 122 for the switch cover 43, which covers the combination switch 42 and the periphery of the upper portion of the combination switch 42, is attached to the top bridge 41 of the front fork 21 and the meter 27 is attached to the head pipe 12 by means of the front stay 24. [0017] Fig. 3 is a side view of a main portion, showing the upper portion of the front fork and its periphery according to the present invention. The top bridge 41 is a component in which female screws 223 and 223 (only reference numeral 223 at the near side is shown) for attaching the combination switch 42 are formed on a lower face 222 of a front portion 221 of the top bridge 41 and female screws 226 and 226 (only reference numeral 226 at the near side is shown) for attaching the cover attachment stay 122 are formed on a front face 224 of the front portion 221. [0018] The combination switch 42 includes: a cylinder portion 228 for inserting a key; a base 231 provided under the cylinder portion 2285 and a cover portion 232 which covers a lower side of the base 231. On an outer surface of the base 231, side protrusion portions 234 and 234 (only reference numeral 234 at the near side is shown) for attaching the combination switch 42 to the top bridge 41 by use of bolts 233 and 233 (only reference numeral 233 at the near side is shown) are integrally provided. [0019] The base 231 is a portion which houses: the steering lock device (not shown) which ejects or retracts a lock pin 236 attached to a crank member when the key is inserted into the cylinder portion 228 and rotated; and the ignition switch (not shown) which allows a movable point of contact to come into contact with or separate from a fixed point of contact along with rotation of the key. [0020] When the lock pin 236 of the steering lock device is engaged with an engagement portion 238 provided in the head pipe 12, steering lock is completed. Thus, steering of the front fork 21 (see Fig. l) and the front wheel 22 (see Fig. l) by use of the handle 23 becomes impossible. [0021] The switch cover 43 is a component having a shape of a cup with a bottom, which has an opening 241 in its lower portion and a cylinder portion insertion hole 242 in its upper portion, into which the cylinder portion 228 of the combination switch 42 is inserted. Inside of the switch cover 43, boss portions 243 and 243 (only reference numeral 243 at the near side is shown) are formed. In these boss portions 243 and 243, female screws 244 (only reference numeral 244 at the near side is shown) are formed, respectively. [0022] The female screws 226 and 226 of the top bridge 41 described above are provided above an edge of the opening 241 of the switch cover 43. Accordingly, tampering prevention is achieved by making it difficult to loose screws 246 from the front. [0023] The cover attachment stay 122 is a component that is attached to the top bridge 41 by fastening the screws 246 and 246 in the female screws 226 and 226 and is attached to the switch cover 43 by fastening the screws 247 and 247 in the female screws 244 and 244. As described above, in the present invention, fastening directions of the screws 246 and 247 are different from each other. Thus, it is made difficult to detach the switch cover 43. [0024] Assembly of the switch cover 43 is performed in the following manner. Specifically, after the combination switch 42 is attached to the top bridge 41, the cover attachment stay 122 is attached to the front face 224 of the top bridge 41 by use of the screws 246 and 246. Next, the switch cover 43 is attached to the cover attachment stay 122 by use of the screws 247 and 247. [0025] Fig. 4 is a perspective view showing the vehicle body front portion according to the present invention. In Fig. 4, the combination switch 42 and the switch cover 43 which covers the periphery of the combination switch 42 are disposed in front of the top bridge 41 to which the handle 23 is attached. Moreover, the meter 27 is disposed in front of the switch cover 43 and both sides of the vehicle body front portion including the switch cover 43 are surrounded by the front cowls 78 and 78. [0026] The switch cover 43 is formed of a single piece component. Thus, the periphery of the combination switch 42 is simplified. Moreover, an attachment portion of the top bridge 41 and the cover attachment stay 122 and an attachment portion of the switch cover 43 and the cover attachment stay 122 are not visible from the above. Thus, external appearance can be improved. Furthermore, the switch cover 43 is surrounded by the meter 27 in its front and by the front cowls 78 and 78 from its both sides. Thus, it is possible to prevent tampering of detaching the switch cover 43. Here, reference numeral 251 is a clutch lever and reference numeral 252 is a brake lever. [0027] Fig. 5 is a perspective view showing a state of attaching the switching cover according to the present invention. Fig. 5 shows the switch cover 43 which covers the upper portion of the combination switch 42. The switch cover 43 includes: a front hanging portion 255 provided in its front; a slope portion 256 formed to taper upward from the front hanging portion 255; and an upper flat portion 257 in which the above-described cylinder portion insertion hole 242 is made open. [0028] Fig. 6 is a perspective view showing a state of attaching the cover attachment stay according to the present invention. Fig. 6 shows a state where the switch cover 43 (see Fig. 5) is detached from the state of Fig. 5. The cover attachment stay 122 includes a stay main body 261 formed by bending a flat plate. The stay main body 261 is a component in which vertical portions 262 and 263 provided on both left and right sides of the stay main body 261 and a curved portion 264 are integrally formed, the curved portion 264 being curved forward so as to avoid the cylinder portion 228 in order to connect the vertical portions 262 and 263 with each other. The vertical portions 262 and 263 are attached to the top bridge 41 and the switch cover 43 is attached to the curved portion 264. Note that, here, omitted is a cable guide member of the cover attachment stay 122, which will be entirely shown in Fig. 8. [0029] Fig. 7 is a perspective view showing a state of attaching the combination switch and the switch cover according to the present invention. In Fig. 7, a tampering prevention bar 266 disposed under the bolts 233 and 233 is attached to lower ends of the vertical portions 262 and 263 of the stay main body 261. [0030] For example, even if it is attempted to loosen the bolts 233 and 233 in order to detach the combination switch 42 from the top bridge 41, the tampering prevention bar 266 covers an area under the bolts 233 and 233. Accordingly, it is possible to prevent tools from being fitted to the bolts 233 and 233 from under the combination switch 43. Thus, tampering can be prevented. [0031] Fig. 8 is a perspective view showing the entire cover attachment stay according to the present invention. Fig. 8 shows a state where the cover attachment stay 122 is viewed from the same direction as that of Fig. 7. The cover attachment stay 122 includes: the above-described stay main body 261; the above-described tampering prevention bar 266; a first cable guide member 271 attached to a lower front portion of the vertical portion 262; and a second cable guide member 272 attached to a side front portion of the vertical portion 263. These first and second cable guide members 271 and 272 are for holding cables for the meter, respectively. [0032] Here, reference numerals 273 are screw insertion holes as attachment portions at the top bridge side, into which the screws 246 and 246 are inserted to attach the cover attachment stay 122 to the top bridge 41. Moreover, reference numerals 274 are screw insertion holes as attachment portions at the switch cover side, into which the screws 247 and 247 are inserted to attach the cover attachment stay 122 to the switch cover 43. [0033] As described above with reference to Figs. 1 to 3, in the motorcycle 10, the combination switch 42 is provided in the front portion of the top bridge 41 which connects the both left and right sides of the upper portion of the front fork 21 and the periphery of the combination switch 42 is covered with the switch cover 43. According to a first aspect of the present invention, the above-described motorcycle 10 is characterized in that the switch cover 43 is formed to have a shape of a cup with a bottom which has an opening in its lower portion; the screw insertion holes 274 and 274 in the cover attachment stay 122 for attaching the switch cover 43 to the top bridge 41 are fastened to the switch cover 43 from thereunder at positions above the edge of the opening 241, and; the screw insertion holes 273 and 273 in the cover attachment stay 122 are provided below the screw insertion holes 274 and 274 and are fastened to the front face 224 of the top bridge 41 from the front. [0034] The screw insertion holes 274 in the cover attachment stay 122 are fastened at the positions above the edge of the opening 241. Furthermore, the fastening directions of the screw insertion holes 274 and the screw insertion holes 273 are different from each other. Accordingly, it is difficult to detach the switch cover 43. Thus, effects of tampering prevention can be improved. [0035] Moreover, by use of the switch cover 43 that is a single-piece component, the periphery of the combination switch 42 is simplified. In addition, the attachment portion at the switch cover side and the attachment portion at the top bridge side in the cover attachment stay 122 are not visible from the above. Thus, the external appearance can be improved. [0036] As shown in Fig. 2, according to a second aspect, the present invention is characterized in that the meter 27 is provided in front of the combination switch 42. The meter 27 can prevent tampering with the combination switch 42 from the front. [0037] As shown in Fig. 8, according to a third aspect, the present invention is characterized in that the first and second cable guide members 271 and 272 for guiding cables are integrally provided in the cover attachment stay 122. [0038] The integration of the cover attachment stay 122 and the first and second cable guide members 271 and 272 makes it possible to reduce the number of components as well as the number of assembly steps. [0039] Note that, in the present invention, the switch cover is attached to the top bridge. However, without being limited thereto, the switch cover may be attached directly to the combination switch or may be attached to the combination switch via the cover attachment stay. [0040] [Effects of the Invention] With the foregoing configuration, the present invention exerts the following effects. In a combination switch cover attachment structure of a motorcycle according to Claim 1, a switch cover is formed to have a shape of a cup with a bottom which has an opening in its lower portion. In addition, attachment portions at the switch cover side in a cover attachment stay for attaching the switch cover to a top bridge are fastened to the switch cover from thereunder at positions above an edge of the opening. Moreover, attachment portions at the top bridge side in the cover attachment stay are provided below the attachment portions at the switch cover side and are fastened to a front face of the top bridge from the front. Accordingly, the attachment portions at the switch cover side in the cover attachment stay are fastened at the positions above the edge of the opening. Furthermore, fastening directions of the attachment portions at the switch cover side and the attachment portions at the top bridge side are different from each other. Accordingry, it is difficult to detach the switch cover. Thus, effects of tampering prevention can be improved. [0041] Moreover, by use of the switch cover that is a single-piece component, the periphery of the combination switch is simplified. In addition, the attachment portions at the switch cover side and the attachment portions at the top bridge side are not visible from the above. Thus, external appearance can be improved. [0042] In the combination switch cover attachment structure of a motorcycle according to Claim 2, a meter is provided in front of the combination switch. Thus, the meter can prevent tampering with the combination switch from the front. Therefore, the effects of tampering prevention can be further improved. [0043] In the combination switch cover attachment structure of a motorcycle according to Claim 3, cable guide members for guiding cables are integrally provided in the cover attachment stay. Thus, the integration of the cover attachment stay and the cable guide members makes it possible to reduce the number of components as well as the number of assembly steps. [Explanation of Reference Numerals] 10 motorcycle 21 front fork 27 meter 41 top bridge 42 combination switch 43 switch cover 122 cover attachment stay 224 front face of top bridge 241 opening of switch cover 271 first cable guide member 272 second cable guide member 273 attachment portion (screw insertion hole) at top bridge side 274 attachment portion (screw insertion hole) at switch cover side We Claims: [Claim l] In a motorcycle, in which a combination switch is provided in a front portion of a top bridge connecting both left and right sides of an upper portion of a front fork and a periphery of the combination switch is covered with a switch cover, a combination switch cover attachment structure of the motorcycle characterized in that; the switch cover is formed to have a shape of a cup with a bottom which has an opening in its lower portion, an attachment portion at the switch cover side in a cover attachment stay for attaching the switch cover to the top bridge is fastened to the switch cover from therebelow at a position above an edge of the opening, and an attachment portion at the top bridge side in the cover attachment stay is provided below the attachment portion at the switch cover side and is fastened to a front face of the top bridge from the front. [Claim 2] The combination switch cover attachment structure of a motorcycle according to Claim 1, characterized in that a meter is provided in front of the combination switch. [Claim 3] The combination switch cover attachment structure of a motorcycle according to one of Claims 1 and 2, characterized in that cable guide members for guiding cables are integrally provided in the cover attachment stay. A motorcycle substantially as hereinbefore described with reference to the accompanying drawings. 4. The combination switch cover attachment structure of a motorcycle substantially as hereinbefore described with reference to the accompanying drawings.

Full Text

[Detailed Description of the Invention]
[0001]
[Technical Field to Which the Invention Belongs]
The present invention relates to a combination switch cover attachment structure of a motorcycle. [0002] [RelatedArt]
As a combination switch cover attachment structure of a motorcycle, there has been known one which covers a periphery of a combination switch with a cover (for example, see patent document l). [0003]
[Patent Document l]
Published Utility Model Application Sho 57 (1982)-42146 (Page 1, Fig. 2) [0004]
Fig. 2 of patent document 1 will be described below with reference to Fig. 9. Note that reference numerals are allotted again.
Fig. 9 is a cross-sectional view showing a conventional combination switch cover attachment structure of a motorcycle. In Fig. 9, a part attachment seat 412 is attached to a top bridge 411 which connects both sides of an upper portion of a front fork with each other. A combination switch 413 is attached to the part attachment seat 412. A periphery of the combination switch 413 is covered with a cover 416 which is fixed by hooking . a claw 415 on a hole 414 provided in the part attachment seat 412. Note that reference numeral 417 is a handle pipe and reference numeral 418 is a meter. [0005] [Problems to be Solved by the Invention]
The foregoing cover 416 is hooked on the hole 414 of the part attachment seat 412 by use of the claw 415. Thus, the cover may be detached by external forces. Therefore, there is scope for improvement in measures to prevent tampering with the combination switch 413. [0006]
Moreover, in the periphery of the combination switch 413, the part attachment seat 412 and the cover 416 appear to be a cover having a two-part split structure. Thus, for example, if these part attachment seat 412 and cover 416 are set to be a cover, as a single-piece component, in the periphery of the combination switch 413, external appearance can be improved more. [0007]
Accordingly, an object of the present invention is to improve a combination switch cover attachment structure of a motorcycle, whereby enhancing effects of tampering prevention and improving external appearance. [0008] [Means for Solving the Problems]
In order to realize the aforementioned object, Claim 1 is characterized in that in a motorcycle, in which a combination switch is

provided in a front portion of a top bridge connecting both left and right sides of an upper portion of a front fork and a periphery of the combination switch is covered with a switch cover, the switch cover is formed to have a shape of a cup with a bottom which has an opening in its lower portion; an attachment portion at the switch cover side in a cover attachment stay for attaching the switch cover to the top bridge is fastened to the switch cover from therebelow at a position above an edge of the opening; and an attachment portion at the top bridge side in the cover attachment stay is provided below the attachment portion at the switch cover side and is fastened to a front face of the top bridge from the front. [0009]
The attachment portion at the switch cover side in the cover attachment stay is fastened at the position above the edge of the opening. Furthermore, fastening directions of the attachment portion at the switch cover side and the attachment portion at the top bridge side are different from each other. Thus, it is difficult to detach the switch cover and effects of tampering prevention can be improved. [0010]
Moreover, by use of the switch cover, that is a single-piece component, the periphery of the combination switch is simplified. Furthermore, the attachment portion at the switch cover side and the attachment portion at the top bridge side are not visible from the above. Thus, the external appearance can be improved. [0011]
Claim 2 is characterized in that a meter is provided in front of the combination switch.
The meter makes it possible to prevent tampering from the front with the combination switch. [0012]
Claim 3 is characterized in that cable guide members for guiding cables are integrally provided in the cover attachment stay.
The integration of the cover attachment stay and the cable guide makes it possible to reduce the number of components as well as the number of assembly steps. [0013] [Embodiments of the Invention]
Based on the accompanying drawings, an embodiment of the present
invention will be described below. Note that the drawings are viewed in the
direction of reference numerals. [Brief Description of the Drawings]
Fig. 1 is a side view of a motorcycle which adopts a combination switch cover attachment structure according to the present invention.
Fig. 2 is a side view showing an upper portion of a front fork of the motorcycle and its periphery according to the present invention.
Fig. 3 is a side view of a main portion, showing the upper portion of the front fork and its periphery according to the present invention.
Fig. 4 is a perspective view showing a vehicle body front portion according to the present invention.
Fig. 5 is a perspective view showing a state of attaching a switch cover according to the present invention.
Fig. 6 is a perspective view showing a state of attaching a cover attachment stay according to the present invention.
Fig. 7 is a perspective view showing a state of attaching a combination switch and the switch cover according to the present invention.
Fig. 8 is a perspective view showing the entire cover attachment stay according to the present invention.
Fig. 9 is a cross-sectional view showing a conventional combination switch cover attachment structure of a motorcycle.
Fig. 1 is a side view of a motorcycle which adopts a combination switch cover attachment structure according to the present invention. The motorcycle 10 is a vehicle having the following structure. Specifically, a vehicle body frame 11 includes : a head pipe 12 provided in its front end; a main pipe 13 extended approximately backward and obliquely downward from the head pipe 12; a pivot plate 14 attached to a lower portion of the main pipe 13; a pair of seat rails 16 and 16 (only reference numeral 16 at the near side is shown) which are extended backward from both left and right sides of a rear portion of the main pipe 13; sub pipes 17 and 17 (only reference numeral 17 at the near side is shown) which are connected to rear portions of the seat rails 16 and 16 and the pivot plate 14, respectively; and a down pipe 18 extended linearly backward and obliquely downward from the above-described head pipe 12. A front fork 21 is attached to the head pipe 12 so as to be steerable, a front wheel 22 is attached to a lower end of the front fork 21 and a handle 23 is attached to an upper end of the front fork 21. Furthermore, a headlamp 26 and a meter 27 are supported by a front stay 24 provided in a front portion of the head pipe 12. A front number plate 31 is attached to the headlamp 26 by means of a number plate stay 28. A combination switch 42 including an ignition switch and a steering lock device is attached to a top bridge 41 which connects both left and right sides of an upper portion of the front fork 21. A periphery of an upper portion of the combination switch 42 is covered with a switch cover 43. [0014]
Moreover, the motorcycle 10 is also a vehicle having the following structure. Specifically, a fuel tank 51 is attached to the main pipe 13 and a drain pipe 54 is extended from a cap 52 provided in a fill opening of the fuel tank 51 to a bottom wall 53 thereof. An upper end of a drain tube 56 is connected to a lower end of the drain pipe 54 and this drain tube 56 is allowed to hang downward approximately along the lower portion of the main pipe 13 and the pivot plate 14. The main pipe 13, front portions of the seat rails 16 and 16 and both sides of the sub pipes 17 and 17 are covered with side covers 65 and 65 (only reference numeral 65 at the near side is shown) which are divided into two, upper and lower, portions. Both sides of
the rear portions of the seat rails 16 and 16, which are at the rear of the side covers 65 and 65, are covered with rear cowls 66 and 66 (only reference numeral 66 at the near side is shown). End portions of rear cushion units 68 and 68 (only reference numeral 68 at the near side is shown) are connected to a rear portion of a swing arm 67 and the seat rails 16 and 16, respectively, the swing arm 67 being attached to the pivot plate 14 so as to be swingable. [0015]
Here, reference numeral 77 is a front fender which covers an upper side of the front wheel 22. Reference numerals 78 and 78 (only reference numeral 78 at the near side is shown) are left and right front cowls which cover sides of a vehicle body front portion including a front portion of the fuel tank 51. Reference numeral 81 is an engine attached to the main pipe 13, the pivot plate 14 and the down pipe 18. Reference numeral 83 is a transmission integrally provided to the engine at a rear portion thereof. Reference numeral 85 is a carburetor attached to the engine 81 via a suction pipe 86. Reference numeral 87 is an air cleaner connected to the carburetor 85 through a connecting tube 88. Reference numeral 91 is an exhaust pipe extended to the rear side of the body from an upper front portion of the engine 81. Reference numeral 92 is a muffler connected to a rear end of the exhaust pipe 91. Reference numeral 93 is a side stand. Reference numeral 94 is a rear wheel attached to a rear end of the swing arm 67. Reference numeral 96 is a rear fender which covers an upper side of the rear wheel 94. Reference numeral 97 is a rear number plate attached to the rear fender 96. Reference numeral 98 is a seat attached to the upper portions of the seat rails 16 and 16. Reference numeral 101 is a passenger grip. Reference numeral 102 is a taillamp. [0016]
Fig. 2 is a side view showing an upper portion of the front fork of the motorcycle and its periphery according to the present invention. Fig. 2 shows that the meter 27 is disposed in front of the switch cover 43 in such a manner that a cover attachment stay 122 for the switch cover 43, which covers the combination switch 42 and the periphery of the upper portion of the combination switch 42, is attached to the top bridge 41 of the front fork 21 and the meter 27 is attached to the head pipe 12 by means of the front stay 24.
[0017]
Fig. 3 is a side view of a main portion, showing the upper portion of the front fork and its periphery according to the present invention. The top bridge 41 is a component in which female screws 223 and 223 (only reference numeral 223 at the near side is shown) for attaching the combination switch 42 are formed on a lower face 222 of a front portion 221 of the top bridge 41 and female screws 226 and 226 (only reference numeral 226 at the near side is shown) for attaching the cover attachment stay 122 are formed on a front face 224 of the front portion 221. [0018]
The combination switch 42 includes: a cylinder portion 228 for inserting a key; a base 231 provided under the cylinder portion 2285 and a cover portion 232 which covers a lower side of the base 231. On an outer surface of the base 231, side protrusion portions 234 and 234 (only reference numeral 234 at the near side is shown) for attaching the combination switch 42 to the top bridge 41 by use of bolts 233 and 233 (only reference numeral 233 at the near side is shown) are integrally provided. [0019]
The base 231 is a portion which houses: the steering lock device (not shown) which ejects or retracts a lock pin 236 attached to a crank member when the key is inserted into the cylinder portion 228 and rotated; and the ignition switch (not shown) which allows a movable point of contact to come into contact with or separate from a fixed point of contact along with rotation of the key. [0020]
When the lock pin 236 of the steering lock device is engaged with an engagement portion 238 provided in the head pipe 12, steering lock is completed. Thus, steering of the front fork 21 (see Fig. l) and the front wheel 22 (see Fig. l) by use of the handle 23 becomes impossible. [0021]
The switch cover 43 is a component having a shape of a cup with a bottom, which has an opening 241 in its lower portion and a cylinder portion insertion hole 242 in its upper portion, into which the cylinder portion 228 of the combination switch 42 is inserted. Inside of the switch cover 43, boss portions 243 and 243 (only reference numeral 243 at the near side is shown) are formed. In these boss portions 243 and 243, female screws 244 (only
reference numeral 244 at the near side is shown) are formed, respectively. [0022]
The female screws 226 and 226 of the top bridge 41 described above are provided above an edge of the opening 241 of the switch cover 43. Accordingly, tampering prevention is achieved by making it difficult to loose screws 246 from the front. [0023]
The cover attachment stay 122 is a component that is attached to the top bridge 41 by fastening the screws 246 and 246 in the female screws 226 and 226 and is attached to the switch cover 43 by fastening the screws 247 and 247 in the female screws 244 and 244.
As described above, in the present invention, fastening directions of the screws 246 and 247 are different from each other. Thus, it is made difficult to detach the switch cover 43. [0024]
Assembly of the switch cover 43 is performed in the following manner. Specifically, after the combination switch 42 is attached to the top bridge 41, the cover attachment stay 122 is attached to the front face 224 of the top bridge 41 by use of the screws 246 and 246. Next, the switch cover 43 is attached to the cover attachment stay 122 by use of the screws 247 and 247. [0025]
Fig. 4 is a perspective view showing the vehicle body front portion according to the present invention. In Fig. 4, the combination switch 42 and the switch cover 43 which covers the periphery of the combination switch 42 are disposed in front of the top bridge 41 to which the handle 23 is attached. Moreover, the meter 27 is disposed in front of the switch cover 43 and both sides of the vehicle body front portion including the switch cover 43 are surrounded by the front cowls 78 and 78. [0026]
The switch cover 43 is formed of a single piece component. Thus, the periphery of the combination switch 42 is simplified. Moreover, an attachment portion of the top bridge 41 and the cover attachment stay 122 and an attachment portion of the switch cover 43 and the cover attachment stay 122 are not visible from the above. Thus, external appearance can be improved. Furthermore, the switch cover 43 is surrounded by the meter 27 in its front and by the front cowls 78 and 78 from its both sides. Thus, it is
possible to prevent tampering of detaching the switch cover 43.
Here, reference numeral 251 is a clutch lever and reference numeral 252 is a brake lever. [0027]
Fig. 5 is a perspective view showing a state of attaching the switching cover according to the present invention. Fig. 5 shows the switch cover 43 which covers the upper portion of the combination switch 42.
The switch cover 43 includes: a front hanging portion 255 provided in its front; a slope portion 256 formed to taper upward from the front hanging portion 255; and an upper flat portion 257 in which the above-described cylinder portion insertion hole 242 is made open. [0028]
Fig. 6 is a perspective view showing a state of attaching the cover attachment stay according to the present invention. Fig. 6 shows a state where the switch cover 43 (see Fig. 5) is detached from the state of Fig. 5.
The cover attachment stay 122 includes a stay main body 261 formed by bending a flat plate. The stay main body 261 is a component in which vertical portions 262 and 263 provided on both left and right sides of the stay main body 261 and a curved portion 264 are integrally formed, the curved portion 264 being curved forward so as to avoid the cylinder portion 228 in order to connect the vertical portions 262 and 263 with each other. The vertical portions 262 and 263 are attached to the top bridge 41 and the switch cover 43 is attached to the curved portion 264. Note that, here, omitted is a cable guide member of the cover attachment stay 122, which will be entirely shown in Fig. 8. [0029]
Fig. 7 is a perspective view showing a state of attaching the combination switch and the switch cover according to the present invention. In Fig. 7, a tampering prevention bar 266 disposed under the bolts 233 and 233 is attached to lower ends of the vertical portions 262 and 263 of the stay main body 261. [0030]
For example, even if it is attempted to loosen the bolts 233 and 233 in order to detach the combination switch 42 from the top bridge 41, the tampering prevention bar 266 covers an area under the bolts 233 and 233. Accordingly, it is possible to prevent tools from being fitted to the bolts 233

and 233 from under the combination switch 43. Thus, tampering can be
prevented.
[0031]
Fig. 8 is a perspective view showing the entire cover attachment stay according to the present invention. Fig. 8 shows a state where the cover attachment stay 122 is viewed from the same direction as that of Fig. 7.
The cover attachment stay 122 includes: the above-described stay main body 261; the above-described tampering prevention bar 266; a first cable guide member 271 attached to a lower front portion of the vertical portion 262; and a second cable guide member 272 attached to a side front portion of the vertical portion 263. These first and second cable guide members 271 and 272 are for holding cables for the meter, respectively. [0032]
Here, reference numerals 273 are screw insertion holes as attachment portions at the top bridge side, into which the screws 246 and 246 are inserted to attach the cover attachment stay 122 to the top bridge 41. Moreover, reference numerals 274 are screw insertion holes as attachment portions at the switch cover side, into which the screws 247 and 247 are inserted to attach the cover attachment stay 122 to the switch cover 43. [0033]
As described above with reference to Figs. 1 to 3, in the motorcycle 10, the combination switch 42 is provided in the front portion of the top bridge 41 which connects the both left and right sides of the upper portion of the front fork 21 and the periphery of the combination switch 42 is covered with the switch cover 43. According to a first aspect of the present invention, the above-described motorcycle 10 is characterized in that the switch cover 43 is formed to have a shape of a cup with a bottom which has an opening in its lower portion; the screw insertion holes 274 and 274 in the cover attachment stay 122 for attaching the switch cover 43 to the top bridge 41 are fastened to the switch cover 43 from thereunder at positions above the edge of the opening 241, and; the screw insertion holes 273 and 273 in the cover attachment stay 122 are provided below the screw insertion holes 274 and 274 and are fastened to the front face 224 of the top bridge 41 from the front. [0034]
The screw insertion holes 274 in the cover attachment stay 122 are fastened at the positions above the edge of the opening 241. Furthermore,
the fastening directions of the screw insertion holes 274 and the screw insertion holes 273 are different from each other. Accordingly, it is difficult to detach the switch cover 43. Thus, effects of tampering prevention can be improved. [0035]
Moreover, by use of the switch cover 43 that is a single-piece component, the periphery of the combination switch 42 is simplified. In addition, the attachment portion at the switch cover side and the attachment portion at the top bridge side in the cover attachment stay 122 are not visible from the above. Thus, the external appearance can be improved. [0036]
As shown in Fig. 2, according to a second aspect, the present invention is characterized in that the meter 27 is provided in front of the combination switch 42.
The meter 27 can prevent tampering with the combination switch 42 from the front. [0037]
As shown in Fig. 8, according to a third aspect, the present invention is characterized in that the first and second cable guide members 271 and 272 for guiding cables are integrally provided in the cover attachment stay 122. [0038]
The integration of the cover attachment stay 122 and the first and second cable guide members 271 and 272 makes it possible to reduce the number of components as well as the number of assembly steps. [0039]
Note that, in the present invention, the switch cover is attached to the top bridge. However, without being limited thereto, the switch cover may be attached directly to the combination switch or may be attached to the combination switch via the cover attachment stay. [0040] [Effects of the Invention]
With the foregoing configuration, the present invention exerts the following effects.
In a combination switch cover attachment structure of a motorcycle according to Claim 1, a switch cover is formed to have a shape of a cup with a
bottom which has an opening in its lower portion. In addition, attachment portions at the switch cover side in a cover attachment stay for attaching the switch cover to a top bridge are fastened to the switch cover from thereunder at positions above an edge of the opening. Moreover, attachment portions at the top bridge side in the cover attachment stay are provided below the attachment portions at the switch cover side and are fastened to a front face of the top bridge from the front. Accordingly, the attachment portions at the switch cover side in the cover attachment stay are fastened at the positions above the edge of the opening. Furthermore, fastening directions of the attachment portions at the switch cover side and the attachment portions at the top bridge side are different from each other. Accordingry, it is difficult to detach the switch cover. Thus, effects of tampering prevention can be improved. [0041]
Moreover, by use of the switch cover that is a single-piece component, the periphery of the combination switch is simplified. In addition, the attachment portions at the switch cover side and the attachment portions at the top bridge side are not visible from the above. Thus, external appearance can be improved. [0042]
In the combination switch cover attachment structure of a motorcycle according to Claim 2, a meter is provided in front of the combination switch. Thus, the meter can prevent tampering with the combination switch from the front. Therefore, the effects of tampering prevention can be further improved. [0043]
In the combination switch cover attachment structure of a motorcycle according to Claim 3, cable guide members for guiding cables are integrally provided in the cover attachment stay. Thus, the integration of the cover attachment stay and the cable guide members makes it possible to reduce the number of components as well as the number of assembly steps.
[Explanation of Reference Numerals]
10 motorcycle
21 front fork
27 meter
41 top bridge
42 combination switch
43 switch cover
122 cover attachment stay
224 front face of top bridge
241 opening of switch cover
271 first cable guide member
272 second cable guide member
273 attachment portion (screw insertion hole) at top bridge side
274 attachment portion (screw insertion hole) at switch cover side

We Claims:
[Claim l] In a motorcycle, in which a combination switch is provided in a front portion of a top bridge connecting both left and right sides of an upper portion of a front fork and a periphery of the combination switch is covered with a switch cover, a combination switch cover attachment structure of the motorcycle characterized in that;
the switch cover is formed to have a shape of a cup with a bottom which has an opening in its lower portion,
an attachment portion at the switch cover side in a cover attachment stay for attaching the switch cover to the top bridge is fastened to the switch cover from therebelow at a position above an edge of the opening, and
an attachment portion at the top bridge side in the cover attachment stay is provided below the attachment portion at the switch cover side and is fastened to a front face of the top bridge from the front.
[Claim 2] The combination switch cover attachment structure of a motorcycle according to Claim 1, characterized in that a meter is provided in front of the combination switch.
[Claim 3] The combination switch cover attachment structure of a motorcycle according to one of Claims 1 and 2, characterized in that cable guide members for guiding cables are integrally provided in the cover attachment stay.
A motorcycle substantially as hereinbefore described with reference to the accompanying drawings.
4. The combination switch cover attachment structure of a motorcycle substantially as hereinbefore described with reference to the accompanying drawings.

Documents:

http://ipindiaonline.gov.in/patentsearch/GrantedSearch/viewdoc.aspx?id=yuqHDyIRBRj3po8AXunjNg==&loc=+mN2fYxnTC4l0fUd8W4CAA==

« Previous Patent

Next Patent »

Patent Number

278084

Indian Patent Application Number

351/DEL/2004

PG Journal Number

52/2016

Publication Date

16-Dec-2016

Grant Date

13-Dec-2016

Date of Filing

04-Mar-2004

Name of Patentee

HONDA MOTOR CO., LTD.

Applicant Address

1-1, MINAMIAOYAMA 2-CHOME, MINATO-KU, TOKYO, JAPAN.

Inventors:

#	Inventor's Name	Inventor's Address
1	TOSHIO IGARASHI	C/O KABUSHIKI KAISHA HONDA GIJUTSU KENKYUSHO, 4-1 CHUO 1-CHOME, WAKO-SHI, SAITAMA, JAPAN.

PCT International Classification Number

B60R 25/00

PCT International Application Number

N/A

PCT International Filing date

PCT Conventions:

#	PCT Application Number	Date of Convention	Priority Country
1	2003-074397	2003-03-18	Japan