Title of Invention	"HANDLE LOCK DEVICE PROTECTIVE STRUCTURE OF MOTORCYCLE"
Abstract	A handle lock device protective structure of a motorcycle which mounts a handle lock device on one of a steering handle side and a head pipe side which supports a steering handle and is capable of locking a locking pin which is reciprocally mounted in the handle lock device to another of the steering handle side and the head pipe side, wherein to either one of the steering handle side and the head pipe side, a protective member which protects the lock pin of the handle lock device is jointly mounted together with the handle lock device by fastening.

Title of Invention

"HANDLE LOCK DEVICE PROTECTIVE STRUCTURE OF MOTORCYCLE"

Abstract

A handle lock device protective structure of a motorcycle which mounts a handle lock device on one of a steering handle side and a head pipe side which supports a steering handle and is capable of locking a locking pin which is reciprocally mounted in the handle lock device to another of the steering handle side and the head pipe side, wherein to either one of the steering handle side and the head pipe side, a protective member which protects the lock pin of the handle lock device is jointly mounted together with the handle lock device by fastening.

Full Text	[Designation of Document] Specification [Title of the Invention] HANDLE LOCK DEVICE PROTECTIVE STRUCTURE OF MOTORCYCLE [Technical Field] [0001] The present invention relates to an improvement of a handle lock device protective structure of a motorcycle. [Background Art] [0002] As such a conventional handle lock device protective structure of a motorcycle, there has been known a handle lock device protective structure which protects a lock pin provided to a handle lock mechanism which is mounted on a vehicle body frame side using a protective member mounted on a handle lock mechanism side and a projecting portion which is formed on a handle crown side (for example, see Patent Literature 1). [Patent Literature 1] Japanese Laid-Open Hei10(1998)-129555 [0003] In Fig. 2 of the patent literature 1, a handle lock device having the following structure is described. A tank rail 10 is extended obliquely in the rearward and downward direction from a head pipe 6. A bracket 39 is mounted on the tank rail 10. A main switch 35 which includes a handle lock mechanism 3 8 is mounted on an upper portion of the bracket 3 9 using fixing bolts 40, while a protective member 3 6 is mounted on a lower portion of the bracket 39 using fixing bolts 41. A steering shaft not shown in the drawing is rotatably mounted on the head pipe 6. A head crown 17 is mounted on an upper portion of the steering shaft. A periphery of a projecting portion 32 which is formed on the head crown 17 and a front periphery 36b of a protective member 3 6 are arranged to face each other with a gap therebetween and are also overlapped to each other in a plan view. [Disclosure of the Invention] [Problems that the Invention is to solve] [0004] The above-mentioned main switch 35 is fixed to the bracket 39 using the fixing bolts 40 and the protective member 36 is fixed to the bracket 39 using the fixing bolt 41. Accordingly, if a number of parts can be reduced by improving the fixing method of the main switch 35 and the protective member 36, it is possible to reduce a cost. Accordingly, it is an object of the present invention to reduce the number of parts and also to reduce a cost by improving a handle lock device protective structure of a motorcycle. [Means for solving the problem] [0005] The present invention according to claim 1 is characterized in that, in a motorcycle which mounts a handle lock device on one of a steering handle side and a head pipe side which supports the steering handle and which is capable of locking a locking pin which is reciprocally mounted in the handle lock device to another of the steering handle side and the head pipe side, to either one of the steering handle side and the head pipe side, a protective member which protects the lock pin of the handle lock device is jointly mounted together with the steering handle lock device by fastening. [0006] When the handle lock device and the protective member are jointly mounted to either one of the steering handle side and the head pipe side by fastening using bolts, for example, and the locking pin which is reciprocally mounted in the handle lock device is projected from the handle lock device, the locking pin is protected by the protective member and hence, a theft of the motorcycle can be prevented. [0007] The present invention according to claim 2 is, in the above-mentioned constitution, characterized in that the handle lock device is preferably mounted on a lower portion of a top bridge which supports the steering handle and connects left and right front forks and, at the same time, a pair of left and right downwardly extending members are provided to the protective member, and the downwardly extending members are arranged to cover an outer portion of the lock pin. Since the outer portion of the lock pin which projects from the handle lock device mounted on the lower portion of the top bridge is covered with the downwardly extending members provided to the left and right sides of the protective member, it is possible to protect the lock pin thus preventing a theft of the motorcycle. [0008] The present invention according to claim 3 is, in the above-mentioned constitution, characterized in that the cowl support stay which supports the cowl is preferably arranged in front of the head pipe, and on the cowl support stay, a second protective member which extends toward a mounting portion of the handle lock device to the top bridge is integrally formed. [0009] The mounting portion of the handle lock device to the top bridge is protected by the second protective member which is integrally mounted on the cowl support stay. It is possible to prevent a theft of the motorcycle using the second protective member together with the protective member which is jointly fastened with the handle lock device. [Advantage of the Invention] [0010] In the present invention according to claim 1, the protective member is jointly mounted together with the steering handle lock device by fastening to either one of the steering handle side and the head pipe side. To compare with a mounting structure that the handle lock device and the protective member are separately mounted using bolts and nuts or the like, according to the present invention, the handle lock device and the protective member are jointly mounted by fastening using the same bolts or the like and hence, it is possible to reduce the number of parts and the cost can be reduced. [0011] In the present invention according to claim 2, the handle lock device is mounted on the lower portion of the top bridge and, at the same time, the downwardly extending members which are provided to the left and right portions of the protective member are arranged to cover an outer portion of the lock pin. Accordingly, it is possible to arrange the lock pin of the lock device which is jointly fastened and the downwardly extending members close to each other whereby lengths of the downwardly extending members can be shortened and the protective members can be miniaturized and can be made light-weighted. [0012] In the present invention according to claim 3, the second protective member which protects the mounting portion of the handle lock device to the top bridge is mounted on the cowl support stay and hence, it is possible to enhance a protective function of the handle lock device by using the second protective member together with the above-mentioned protective member which is jointly fastened with the handle lock device. [Best Mode for Carrying out the Invention] [0013] Hereinafter, the best mode for carrying out the present invention is explained in conjunction with attached drawings. [Brief Explanation of the Drawings] [0056] [Fig. 1] A side view of a motorcycle according to the present invention. [Fig. 2] A side view showing a front portion of the motorcycle according to the present invention. [Fig. 3] A side view showing the handle lock device protective structure according to the present invention. [ Fig. 4 ] A perspective view of the pin protective member according to the present invention. [Fig. 5] An explanatory view for explaining the handle lock device protective structure according to the present invention. [Fig. 6] An operational view showing the manner of operation of the handle lock device protective structure according to the present invention. Here1, the drawings are viewed in the same direction as numerals. Fig. 1 is a side view of a motorcycle of the present invention. The motorcycle 10 is a vehicle which is characterized in that a handle stopper mechanism which regulates a steering angle of a bar handle 11 is improved, a cost of a protective structure of a handle lock device which locks the steering of the bar handle 11 can be reduced, a protective function of the handle lock device protective structure can be enhanced, the appearance of a periphery of the front cowl 12 is enhanced, a volume of a storing box 14 which is provided below a fuel tank 13 is increased and, at the same time, the appearance of the periphery of the storing box 14 is enhanced. The sinking of a seat which occurs when a pillion sits on a rear portion of the seat 16 is suppressed, and the degree of freedom in arranging a helmet holder 18 which is mounted on a rear portion side of the vehicle body frame 17 can be enhanced. [0014] The motorcycle 10 is a vehicle which has the following constitutions. The vehicle body frame 17 includes a head pipe 21 which forms a front end thereof, a main frame 22 which is extended obliquely in the rearward and downward directions from the head pipe 21, a pair of left and right seat rails 23, 24 (only symbol 23 on a reader's side being shown in the drawing) which are extended rearwardly from a rear end portion of the main frame 22, a pair of left and right down frames 26, 27 which are extended in the substantially downward and rearward directions from a front end portion of the main frame 22, a pair of left and right center frames 28, 31 (only symbol 28 on a reader's side being shown in the drawing)which are respectively connected with rear end portions of the down frames 26, 27 in a state that the center frames 28, 31 are extended obliquely in the downward and rearward directions from a rear portion of the main frame 22 and, thereafter, in the downward direction and a pair of left and right sub frames 32, 33 (only symbol 32 on a reader's side being shown in the drawing) which are respectively extended between the seat rails 23, 24 and the center frames 28, 31. Further, a front fork 36 is rotatably mounted on the head pipe 21 and a fuel tank 13 is mounted on the main frame 22. A power unit 43 which includes an engine 41 and a transmission 42 is supported on a pair of left and right pivot plates 37, 38 (only symbol 37 on a reader's side being shown in the drawing) mounted on the center frames 28, 31, and, at the same time, a swing arm 45 is also supported on the pivot plates 37, 38 in a vertically swingable manner. The seat 16 and a rear side guard member 46 which is mounted on a rear left side of the seat 16 are supported on the seat rails 23, 24. [0015] The front fork 36 is formed by connecting a pair of left and right fork single bodies 51, 52 (only symbol 51 on a reader's side being shown in the drawing) using a top bridge 53 and a bottom bridge 54 which is arranged below the top bridge 53. The bar handle 11 and a handle lock device 56 are mounted on the top bridge 53. A cowl support stay 57 is mounted on the top bridge 53 and the bottom bridge54 so as to support the front cowl 12 by the cowl support stay 57 and, at the same time, the cowl support stay 57 also supports a meter 58, an inner cowl 61, a blinker support stay 62 and a front number plate 63. [0016] Here, numeral 65 indicates a head lamp which is mounted on the front cowl 12, numerals 66 and 67 (only symbol 66 on a reader's side being shown in the drawing) indicate a pair of left and right front blinkers which are mounted on left and right sides of the blinker support stay 62, numeral 68 indicates a front wheel which is mounted on a lower end of the front fork 36, and numeral 71 indicates a front fender which covers the front wheel 68 from above. [0017] A storing box 14 is positioned between the main frame 22 and a cylinder portion 73 of the engine 41 and is mounted on the lower portion of the main frame 22 by way of a bracket 74. The storing box 14 includes a case 76 which has an opening and a lid (not shown in the drawing) which closes the opening. The fuel tank 13 has a lower portion thereof covered with an extended portion 78 which is extended rearwardly from the case 76. Further, both side portions of the fuel tank 13 are covered with a left cover 81 and a right cover (not shown in the drawing) respectively. [0018] The seat 16 is a member which has an insertion portion which is mounted on a rear lower portion thereof engaged with engaging portions on the seat rail 23, 24 side and a pair of left and right mounting members 85, 86 (only symbol 85 on a reader's side being shown in the drawing) formed on a front lower portion are fixed to the seat rail 23, 24 side using bolts. Here, numeral 87 indicates grab rails which are mounted on the rear portions of the seat rails 23, 24. [0019] A helmet holder 18 is mounted on an upper portion of a rear side guard member 46. The helmet holder 18 is a member which can be locked and is arranged in a state that the helmet holder 18 dose not obstruct the movement of legs of a rider who rides on a rear portion of the seat 16. Here, numerals 91, 92 (only symbol 91 on a reader's side being shown in the drawing) indicate bar members which are extended obliquely in the rearward and downward directions from the sub frames 32, 33. Steps 93, 94 (only symbol 93 on a reader's side being shown in the drawing) for a pillion who rides on a rear portion of the seat 16 are respectively mounted on lower ends of the bar members 91, 92, and, at the same time, the bar members 91, 92 are connected to the lower portion of the rear guard member 46 by way of a frame side stay 96. [0020] In the engine 41, an intake device 102 and an exhaust device 103 are mounted on a cylinder head 101 which is mounted on a cylinder portion 73. The intake device 102 includes a carburetor 106 which constitutes a fuel supply device which is connected to an upper portion of the cylinder head 101 by way of an intake tube 105 and an air cleaner 108 which is connected to the carburetor 106 by way of a connecting tube 107. The air cleaner 108 is arranged in a space which is surrounded by the seat rails 23, 24, the center frames 28, 31 and the sub frames 32, 33. Here, it is needless to say that the above-mentioned carburetor 106 may be formed of an injector or a throttle body of the fuel injection device. [0021] Here, numeral 111 indicates an intake opening of the air cleaner 108, numeral 112 indicates a throttle cable which is extended from a throttle grip (not shown in the drawing) mounted on the bar handle 11 to the carburetor 106, numeral 113 indicates a clutch cable which is extended from a clutch lever mounted on the bar handle 11 to the power unit 43, and numeral 114 indicates a battery which is arranged on a depth side of the air cleaner 108. [0022] The exhaust device 103 includes an exhaust pipe 115 which is mounted on a lower portion of the cylinder head 101 and a muffler 116 which is mounted on a rear end of the exhaust pipe 115. In the exhaust device 103, the muffler 116 is supported by way of the depth side bar member 92 and a muffler stay 117 which is mounted on a distal end of the bar member 92. [0023] The swing arm 45 is a member which is mounted on the pivot plates 37, 38 by way of the pivot shaft 121. A rear wheel 122 and respective lower ends of a pair of left and right rear cushion units 123, 123 (only symbol 123 on a reader's side being shown in the drawing) are mounted on a rear end portion of the swing arm 45. Here, an upper end of the rear cushion unit 123 is mounted on rail lower brackets 125, 125 (only symbol 125 on a reader's side being shown in the drawing) which are respectively mounted on the seat rails 23, 24. Numeral 126 indicates a chain cover. The pivot plates 37, 3 8 are members which mount power unit support portions 131 to 133 for supporting an upper portion and a rear portion of the power unit 43 thereon. [0024] Here, numeral 137 indicates a stand, numeral 138 indicates a rear fender which is mounted on the seat rails 23, 24 and rail lower brackets 125, 125 so as to cover the rear wheel 122 from above, numerals 141, 142 (only symbol 141 on a reader's side being shown in the drawing) indicate a pair of left and right rear blinkers which are mounted on a blinker stay 143 mounted on the rear fender 138, and numerals 144, 146 respectively indicate a rear cover and a tail lamp which are mounted on the rear fender 138. [0025] Fig. 2 is a side view (an arrow (FRONT) shown in the drawing indicating a front portion of the vehicle, hereinafter, the same definition being applicable) of the front portion of the motorcycle according to the present invention. In the drawings, a pair of left and right handle stoppers 151, 152 (only symbol 151 on a reader's side being shown in the drawing) which control a rotational angle of the bar handle 11 are mounted on an upper surface 54a of the bottom bridge 54, a projecting portion 153 which is capable of coming into contact with the handle stoppers 151, 152 is mounted on a front portion of a lower end portion of the head pipe 21, and a stopper cover 156 is mounted on the cowl support stay 57 for covering the respective handle stoppers 151, 152 and the projecting portion 153. [0026] The stopper cover 156 prevents small stones or the like from entering between the handle stopper 151 and the projecting portion 153 and between the handle stopper 152 and the projecting portion 153 and, at the same time, the stopper cover 156 prevents the handle stoppers 151, 152 and the projecting portion 153 from being exposed to the outside thus enhancing the appearance of a front portion of the vehicle. The handle stoppers 151, 152, the projecting portion 153 and the stopper cover 156 described above are members which constitute a handle stopper mechanism 154. [0027] The cowl support stay 57 includes a pair of left and right main bars 161, 162, meter stays 163 which are mounted on upper ends of the respective main bars 161, 162, a mounting portion protective bar 164 which is mounted on one of the main bars 162 for protecting a mounting portion of the handle lock device 56, a lower portion of the front cowl 12, a blinker support stay 62, a cowl lower portion stay 166 which is mounted on lower portions of the main bars 161, 162 for supporting the number plate 63, and the above-mentioned stopper cover 156 which is mounted on lower portions of the main bars 161, 162. [0028] The meter stay 163 includes a meter support portion 168 which supports the inner cowl 61 in addition to the meter 58, cowl left/right support portions 171, 172 (only symbol 171 on a reader's side being shown in the drawing) which support left and right portions of the front cowl 12, and a pair of left and right bridge upper portion mounting portions 174, 176 (only symbol 174 on a reader's side being shown in the drawing) which are mounted on an upper surface 53a of the top bridge 53 using bolts 173. Here, a plurality of numerals 178 indicate bolts for mounting the meter 58 and the inner cowl 61 on the meter support portion 168, numerals 181, 181 (only symbol 181 on a reader's side being shown in the drawing) indicate bridge lower portion mounting portions which are respectively mounted on lower ends of the main bars 161, 162 for being inserted into the mounting holes 54b, 54b (only symbol 54b on a reader's side being shown in the drawing) formed in the bottom bridge 54. [0029] Further, in Fig. 2, left and right sideward projecting portions 56a, 56b which are provided to the handle lock device 56 are respectively mounted on the lower portion of the top bridge 53 using a pair of left and right hexagonal socket head cap bolts 185, 185 (only symbol 185 on a reader's side being shown in the drawing) and, at the same time, a pin protective member 187 which covers an outer portion of the lock pin 186 which is reciprocally mounted in the handle lock device 56 is jointly fastened with the above-mentioned handle lock device 56 using the hexagonal socket head cap bolts 185, 185, wherein a lower portion of the hexagonal socket head cap bolt 185 on a depth side is covered with the mounting portion protective bar 164. [0030] The lock pins 186 of the handle lock device 56 are members which are insertable into hollow portions 188a, 191a (only symbol 188a on a reader's side being shown in the drawing) of a pair of left and right cylinder portions 188, 191 (only symbol 188 on a reader's side being shown in the drawing) mounted on a front portion of an upper portion of the head pipe 21. [0031] Further, in Fig. 2, the inner cowl 61 includes a pair of downwardly extending portions 61a, 61b (only symbol 61a on a reader's side being shown in the drawing) which extend downwardly from left and right sides of the rear portion of the inner cowl 61. By mounting the respective downwardly extending portions 61a, 61b on the blinker support stay 62 using small bolts 193, 193 (only symbol 193 on a reader's side being shown in the drawing), a support portion of the front cowl 12 which is constituted of the cowl left and right support portions 171, 172 of the meter stay 163 and a support portion of the front cowl 12 and the front blinkers 66, 67 (only symbol 66 on a reader's side being shown in the drawing) which is constituted of the blinker support stay 62 are covered with the inner cowl 61. [0032] The blinker support stay 62 is a member which is jointly mounted on a cowl lower portion stay 166 of the cowl support stay 57 with the lower portion mounting portion 12a of the front cowl 12 by fastening using one bolt 195 and one nut 196. [0033] The number plate 63 is mounted on a pair of left and right columnar projecting portions 197, 197 (only symbol 197 on a reader's side being shown in the drawing) which are mounted on a front surface of the blinker support stay 62 using bolts 198 (only symbol 198 on a reader's side being shown in the drawing) respectively. [0034] Here, numeral 201 indicates a box nut for mounting the top bridge 53 on an upper end of the steering system not shown in the drawings. Numerals 202, 202 (only symbol 202 on a reader's side being shown in the drawing) indicate bolts for mounting the fork single bodies 51, 52 (only symbol 51 on a reader's side being shown in the drawing) on the top bridge 53. Numerals 203, 203 (only symbol 203 on a reader's side being shown in the drawing) indicate handle support members which support the bar handle 11. Numerals 204, 204 (only symbol 204 on a reader's side being shown in the drawing) indicate nuts for mounting the handle support members 203, 203 on the top bridge 53. Numeral 206 indicates a key for manipulating the handle lock device 56. Numerals 207, 207 (only symbol 207 on a reader's side being shown in the drawing) indicate nuts for mounting the front blinkers 66, 67 on the blinker support stay 62. [0035] Fig. 3 is a side view (exploded view) of the handle lock device protective structure according to the present invention, wherein the top bridge 53 includes a bridge main body 211 on which a steering system (not shown in the drawings) and the fork single bodies 51, 52 (see, Fig. 2, however, numeral 52 not shown in the drawings) are mounted, a substantially L-shaped lower support member 212 which is mounted on a bottom surface of the bridge main body 211, and a pair of left and right nuts 213, 213 (only symbol 213 on a reader's side being shown in the drawing) which are mounted on the lower support member 212. Here, numerals 212a, 212a (only symbol 212a on a reader's side being shown in the drawing) indicate bolt insertion holes which allow hexagonal socket head cap bolts 185 to pass therethrough. [0036] The handle lock device 56 also functions as a main switch and includes sideward projecting portions 56a, 56b (the sideward projecting portion 56b on a depth side not shown in the drawing) on a side surface a main body portion 56c thereof. The sideward projecting portions 56a, 56b are respectively portions where through holes 56d and facing portions 56e which are formed on end portions of the through holes 56d are formed. [0037] The pin protective member 187 forms two mounting holes 187a therein. By inserting two hexagonal socket head cap bolts 185 in the respective through holes 56d, the respective mounting holes 187a and the respective bolt insertion holes 212a and by threadedly engaging the hexagonal socket head cap bolts 185 with the respective nuts 213, the pin protective member 187 is jointly fastened to the top bridge 53 together with the handle lock device 56. [0038] As shown in Fig. 1 and Fig. 3, according to the present invention, in the motorcycle 10 which mounts the handle lock device 56 on one of bar handle 11 (see Fig. 1) side which constitutes the steering handle side and the head pipe 21 (see Fig. 2) side which supports a bar handle 11 and is capable of locking the locking pin 186 which is reciprocally mounted in the handle lock device 56 to another of the steering handle side and the head pipe side, to either one of the bar handle 11 side and the head pipe 21 side, the pin protective member 187 which constitutes a protective member which protects the lock pin 186 of the handle lock device 56 is jointly mounted together with the handle lock device 56 by fastening. [0039] Since the pin protective member 187 is jointly mounted together with the handle lock device 56 to either one of the bar handle 11 and the head pipe 21 by fastening, compared to a case in which the bar handle 11 and the pin protective member 187 are respectively separately mounted using bolts and nuts or the like, in the present invention, it is possible to jointly mount the handle lock device 56 and the pin protective member 187 by fastening using the same hexagonal socket head cap bolts 185 and hence, the number of parts can be reduced and a cost can be reduced. [0040] Fig. 4 is a perspective view of the pin protective member according to the present invention, wherein the pin protective member 187 is formed of a simple press-formed member having the following constitution. That is, the pin protective member 187 is formed of a simple press formed member which is constituted of a planar bridge-side mounting portion 187b which is mounted on the top bridge 53 (see Fig. 2) and a pair of left and right downwardly extending members 187c, 187d which are bent downwardly from left and right ends of the bridge-side mounting portion 187b, wherein mounting holes 187a, 187a are formed in the bridge-side mounting portion 187b. [0041] Fig. 5 is an explanatory view for explaining the handle lock device protective structure according to the present invention and corresponds to a view as viewed in the direction of an arrow 4 in Fig. 2. The pin protective member 187 is constituted by arranging the downwardly extending members 187c, 187d on the left and right sides of lock pin 186 of the handle lock device 56. In the drawing, the handle lock device 56 and the pin protective member 187 are arranged on a position when a vehicle advances straightly (numeral 215 indicating a straight line extended in the longitudinal direction) and the lock pin 186 is in a state that the lock pin 186 is stored in the inside of the handle lock device 56. [0042] Numeral 187e in the drawing indicates a curved portion indented toward a front portion of the vehicle which connects rear peripheries of the left and right downwardly extending members 187c, 187d. By forming the curved portion 187e in the pin protective member 187 in this manner, it is possible to prevent the formation of a straight gap between the pin protective member 187 and the cylindrical portions 188, 191. Accordingly, when the lock pin 186 projects from the handle lock device 56, it is possible to prevent the lock pin 186 from being easily cut. [0043] Further, the cowl support stay 5 7 which is mounted on the top bridge 53 and the bottom bridge 54 (see Fig. 2) includes the mounting portion protective bar 164 in one member 162, wherein a distal end portion of the mounting portion protective bar 164 is overlapped to one hexagonal socket head cap bolt 185, to be more specific, a hexagonal socket 185a. [0044] As shown in Fig. 2 and Fig. 5 described above, the present invention is characterized in that the cowl support stay 57 which supports the front cowl 12 (see Fig. 1) is formed on the front portion of the head pipe 21, and, on the cowl support stay 57, a mounting portion of the handle lock device 56 on the top ridge 53, to be more specific, the mounting portion protective bar 164 which extends toward the hexagonal socket 185a of the hexagonal socket head cap bolt 185 and constitutes a second protective member is integrally formed. [0045] Since the mounting portion protective bar 164 which protects the hexagonal socket head cap bolt 185 which mounts the handle lock device 56 on the top bridge 53 is formed on the cowl support stay 57, it is possible to protect the hexagonal socket 185a of the hexagonal socket head cap bolts 185 by the mounting portion protective bar 164 whereby, together with the pin protective member 187 which is jointly fastened with the above-mentioned handle lock device 56, it is possible to enhance the protective function for the handle lock device 56. [0046] The manner of operation of the handle lock device protective structure described above is explained hereinafter. Fig. 6 is an operational view showing an operation of the handle lock device protective structure according to the present invention. To perform the handle locking, the bar handle is turned by an angle a at maximum to the right, for example, from the position which is taken when the vehicle advances straightly so as to integrally rotate the top bridge 53, the handle lock device 56, the pin protective member 187, and the mounting portion protective bar 164 of the cowl support stay 57 with the bar handle by the angle a. [0047] Then, when the key is inserted into the handle lock device 56 and is turned to a position "LOCK", the lock pin 186 of the handle lock device 56 projects to the outside from the inside and enters the inside of a hollow portion 191a of one cylindrical portion 191 on the head pipe 21 side. Accordingly, the handle locking is completed. [0048] For example, even when an attempt is made to cut the lock pin 186 through a gap between the handle lock device 56 and the cylindrical portion 191 using a metal cutting saw as indicated by a straight line 217 in the drawing for a theft, the metal cutting saw is engaged with the downwardly extending members 187c, 187d of the pin protective member 187 and hence, it is necessary to cut the lock pin 186 together with the downwardly extending members 187c, 187d thus requiring a large amount of time. Accordingly, it is possible to enhance a theft preventing effect with the provision of the downwardly extending members 187c, 187d of the pin protective member 187 . [0049] Further, even an attempt is made to cut the lock pin 18 6 as indicated by a straight line 218 in the drawing, the metal cutting saw is engaged with the bridge-side mounting portion 187b of the pin protective member 187 and the body portion 56a of the handle lock device 56 thus also making the cutting of the lock pin 186 difficult. [0050] Further, even when an attempt is made to turn the hexagonal socket head cap bolts 185 to remove the handle lock device 56 from the top bridge 53, although one hexagonal socket head cap bolts 185 can be turned, another hexagonal socket head cap bolts 185 has the hexagonal socket 185a thereof covered with the mounting portion protective bar 164 and hence, it is possible to insert a hexagonal wrench into the hexagonal socket 185a whereby the hexagonal socket head cap bolts 185 cannot be loosened. Accordingly, with the provision of the mounting portion protective bar 164, it is possible to further enhance the theft preventing effect. [0051] As shown in Fig. 1, Fig. 3, Fig. 4 and Fig. 6, the present invention is characterized in that the handle lock device 56 is mounted on a lower portion of the top bridge 53 which supports the bar handle 11 which constitutes the steering handle and connects left and right front forks 36 and, at the same time, the pair of left and right downwardly extending members 187c, 187d (see Fig. 4) are provided to the pin protective member 187, and the downwardly extending members 187c, 187d are arranged to cover the outer portion of the lock pin 186. [0052] By mounting the handle lock device 56 on the lower portion of the top bridge 53 and, at the same time, by covering the outer portion of the lock pin 186 with the downwardly extending members 187c, 187d which are provided to the left and right sides of the pin protective member 187, it is possible to arrange the lock pin 186 of the jointly fastened handle lock device 56 and the downwardly extending members 187c, 187d close to each other and hence, it is possible to shorten lengths of the downwardly extending members 187c, 187d whereby the pin protective member 187 can be miniaturized and made light-weighted. [0053] Here, although the pin protective member 187 is formed separately from the top bridge 53 as shown in Fig. 3 in this embodiment, the downwardly extending members 187c, 187d (symbol 187d not shown in the drawing) may be integrally formed on the lower support member 212 of the top bridge 53. [0054] Further, as shown in Fig. 5, although the mounting portion protective bar 164 is formed on one main bar 162 of the cowl support stay 57, the present invention is not limited to such a constitution and the mounting portion protective bar may be mounted on other main bar 161. [0055] [Industrial Applicability] The handle lock device protective structure of the present invention is preferably applicable to a motorcycle, j [Description of Reference Numerals and Signs] [0057] 10: motorcycle, 11: steering handle (bar handle), 12: cowl (front cowl), 21: head pipe, 36: front fork, 53: top bridge, 56: handle lock device, 57: cowl support stay, 164: second protective member (mounting portion protective bar), 186: lock pin, 187: protective member (pin protective member), 187c,187d: downwardly extending member. [Designation of Document] Claims [Claim 1] A handle lock device protective structure of a motorcycle which mounts a handle lock device on one of a steering handle side and a head pipe side which supports a steering handle and is capable of locking a locking pin which is reciprocally mounted in the handle lock device to another of the steering handle side and the head pipe side, wherein to either one of the steering handle side and the head pipe side, a protective member which protects the lock pin of the handle lock device is jointly mounted together with the handle lock device by fastening. [Claim 2] A handle lock device protective structure of a motorcycle according to claim 1, wherein the handle lock device is mounted on a lower portion of a top bridge which supports the steering handle and connects left and right front forks and, at the same time, a pair of left and right downwardly extending members are provided to the protective member, and the downwardly extending members are arranged to cover an outer portion of the lock pin. [Claim 3] A handle lock device protective structure of a motorcycle according to claim 1 or claim 2, wherein a cowl support stay which supports a cowl is arranged in front of the head pipe, and on the cowl support stay, a second protective member which extends toward a mounting portion of the handle lock device to the top bridge is integrally formed. 4. A handle lock device protective structure of a motorcycle substantially as hereinbefore described with reference to the accompanying drawings.

Full Text

[Designation of Document] Specification [Title of the Invention]
HANDLE LOCK DEVICE PROTECTIVE STRUCTURE OF MOTORCYCLE [Technical Field] [0001]
The present invention relates to an improvement of a handle lock device protective structure of a motorcycle. [Background Art] [0002]
As such a conventional handle lock device protective structure of a motorcycle, there has been known a handle lock device protective structure which protects a lock pin provided to a handle lock mechanism which is mounted on a vehicle body frame side using a protective member mounted on a handle lock mechanism side and a projecting portion which is formed on a handle crown side (for example, see Patent Literature 1). [Patent Literature 1] Japanese Laid-Open Hei10(1998)-129555 [0003]
In Fig. 2 of the patent literature 1, a handle lock device having the following structure is described. A tank rail 10 is extended obliquely in the rearward and downward direction from a head pipe 6. A bracket 39 is mounted on the tank rail 10. A main switch 35 which includes a handle lock mechanism 3 8 is mounted on an upper portion of the bracket 3 9 using fixing bolts 40, while a protective member 3 6 is mounted on a lower
portion of the bracket 39 using fixing bolts 41. A steering
shaft not shown in the drawing is rotatably mounted on the head
pipe 6. A head crown 17 is mounted on an upper portion of the
steering shaft. A periphery of a projecting portion 32 which
is formed on the head crown 17 and a front periphery 36b of
a protective member 3 6 are arranged to face each other with
a gap therebetween and are also overlapped to each other in
a plan view.
[Disclosure of the Invention]
[Problems that the Invention is to solve]
[0004]
The above-mentioned main switch 35 is fixed to the bracket 39 using the fixing bolts 40 and the protective member 36 is fixed to the bracket 39 using the fixing bolt 41. Accordingly, if a number of parts can be reduced by improving the fixing method of the main switch 35 and the protective member 36, it is possible to reduce a cost.
Accordingly, it is an object of the present invention to reduce the number of parts and also to reduce a cost by improving a handle lock device protective structure of a motorcycle.
[Means for solving the problem] [0005]
The present invention according to claim 1 is characterized in that, in a motorcycle which mounts a handle
lock device on one of a steering handle side and a head pipe side which supports the steering handle and which is capable of locking a locking pin which is reciprocally mounted in the handle lock device to another of the steering handle side and the head pipe side, to either one of the steering handle side and the head pipe side, a protective member which protects the lock pin of the handle lock device is jointly mounted together with the steering handle lock device by fastening. [0006]
When the handle lock device and the protective member are jointly mounted to either one of the steering handle side and the head pipe side by fastening using bolts, for example, and the locking pin which is reciprocally mounted in the handle lock device is projected from the handle lock device, the locking pin is protected by the protective member and hence, a theft of the motorcycle can be prevented. [0007]
The present invention according to claim 2 is, in the above-mentioned constitution, characterized in that the handle lock device is preferably mounted on a lower portion of a top bridge which supports the steering handle and connects left and right front forks and, at the same time, a pair of left and right downwardly extending members are provided to the protective member, and the downwardly extending members are arranged to cover an outer portion of the lock pin.
Since the outer portion of the lock pin which projects from the handle lock device mounted on the lower portion of the top bridge is covered with the downwardly extending members provided to the left and right sides of the protective member, it is possible to protect the lock pin thus preventing a theft of the motorcycle. [0008]
The present invention according to claim 3 is, in the above-mentioned constitution, characterized in that the cowl support stay which supports the cowl is preferably arranged in front of the head pipe, and on the cowl support stay, a second protective member which extends toward a mounting portion of the handle lock device to the top bridge is integrally formed. [0009]
The mounting portion of the handle lock device to the top bridge is protected by the second protective member which is integrally mounted on the cowl support stay. It is possible to prevent a theft of the motorcycle using the second protective member together with the protective member which is jointly fastened with the handle lock device. [Advantage of the Invention] [0010]
In the present invention according to claim 1, the protective member is jointly mounted together with the steering handle lock device by fastening to either one of the
steering handle side and the head pipe side. To compare with a mounting structure that the handle lock device and the protective member are separately mounted using bolts and nuts or the like, according to the present invention, the handle lock device and the protective member are jointly mounted by fastening using the same bolts or the like and hence, it is possible to reduce the number of parts and the cost can be reduced. [0011]
In the present invention according to claim 2, the handle lock device is mounted on the lower portion of the top bridge and, at the same time, the downwardly extending members which are provided to the left and right portions of the protective member are arranged to cover an outer portion of the lock pin. Accordingly, it is possible to arrange the lock pin of the lock device which is jointly fastened and the downwardly extending members close to each other whereby lengths of the downwardly extending members can be shortened and the protective members can be miniaturized and can be made light-weighted. [0012]
In the present invention according to claim 3, the second protective member which protects the mounting portion of the handle lock device to the top bridge is mounted on the cowl support stay and hence, it is possible to enhance a protective function of the handle lock device by using the second
protective member together with the above-mentioned protective member which is jointly fastened with the handle lock device.
[Best Mode for Carrying out the Invention] [0013]
Hereinafter, the best mode for carrying out the present invention is explained in conjunction with attached drawings.
[Brief Explanation of the Drawings] [0056]
[Fig. 1] A side view of a motorcycle according to the present invention.
[Fig. 2] A side view showing a front portion of the
motorcycle according to the present invention.
[Fig. 3] A side view showing the handle lock device protective structure according to the present invention.
[ Fig. 4 ] A perspective view of the pin protective member according to the present invention.
[Fig. 5] An explanatory view for explaining the handle lock device protective structure according to the present invention.
[Fig. 6] An operational view showing the manner of operation of the handle lock device protective structure according to the present invention.
Here1, the drawings are viewed in the same direction as numerals. Fig. 1 is a side view of a motorcycle of the present invention. The motorcycle 10 is a vehicle which is characterized in that a handle stopper mechanism which regulates a steering angle of a bar handle 11 is improved, a cost of a protective structure of a handle lock device which locks the steering of the bar handle 11 can be reduced, a protective function of the handle lock device protective structure can be enhanced, the appearance of a periphery of the front cowl 12 is enhanced, a volume of a storing box 14 which is provided below a fuel tank 13 is increased and, at the same time, the appearance of the periphery of the storing box 14 is enhanced. The sinking of a seat which occurs when a pillion sits on a rear portion of the seat 16 is suppressed, and the degree of freedom in arranging a helmet holder 18 which is mounted on a rear portion side of the vehicle body frame 17 can be enhanced. [0014]
The motorcycle 10 is a vehicle which has the following constitutions.
The vehicle body frame 17 includes a head pipe 21 which forms a front end thereof, a main frame 22 which is extended obliquely in the rearward and downward directions from the head pipe 21, a pair of left and right seat rails 23, 24 (only symbol 23 on a reader's side being shown in the drawing) which are extended rearwardly from a rear end portion of the main frame 22, a pair of left and right down frames 26, 27 which are extended in the substantially downward and rearward directions from a front end portion of the main frame 22, a pair of left and right center frames 28, 31 (only symbol 28 on a reader's side being shown in the drawing)which are respectively connected with rear end portions of the down frames 26, 27 in a state that the center frames 28, 31 are extended obliquely in the downward and rearward directions from a rear portion of the main frame 22 and, thereafter, in the downward direction and a pair of left and right sub frames 32, 33 (only symbol 32 on a reader's side being shown in the drawing) which are respectively extended between the seat rails 23, 24 and the center frames 28, 31. Further, a front fork 36 is rotatably mounted on the head pipe 21 and a fuel tank 13 is mounted on the main frame 22. A power unit 43 which includes an engine 41 and a transmission 42 is supported on a pair of left and right pivot plates 37, 38 (only symbol 37 on a reader's side
being shown in the drawing) mounted on the center frames 28, 31, and, at the same time, a swing arm 45 is also supported on the pivot plates 37, 38 in a vertically swingable manner. The seat 16 and a rear side guard member 46 which is mounted on a rear left side of the seat 16 are supported on the seat rails 23, 24. [0015]
The front fork 36 is formed by connecting a pair of left and right fork single bodies 51, 52 (only symbol 51 on a reader's side being shown in the drawing) using a top bridge 53 and a bottom bridge 54 which is arranged below the top bridge 53. The bar handle 11 and a handle lock device 56 are mounted on the top bridge 53. A cowl support stay 57 is mounted on the top bridge 53 and the bottom bridge54 so as to support the front cowl 12 by the cowl support stay 57 and, at the same time, the cowl support stay 57 also supports a meter 58, an inner cowl 61, a blinker support stay 62 and a front number plate 63. [0016]
Here, numeral 65 indicates a head lamp which is mounted on the front cowl 12, numerals 66 and 67 (only symbol 66 on a reader's side being shown in the drawing) indicate a pair of left and right front blinkers which are mounted on left and right sides of the blinker support stay 62, numeral 68 indicates a front wheel which is mounted on a lower end of the front fork 36, and numeral 71 indicates a front fender which covers the
front wheel 68 from above. [0017]
A storing box 14 is positioned between the main frame 22 and a cylinder portion 73 of the engine 41 and is mounted on the lower portion of the main frame 22 by way of a bracket 74. The storing box 14 includes a case 76 which has an opening and a lid (not shown in the drawing) which closes the opening. The fuel tank 13 has a lower portion thereof covered with an extended portion 78 which is extended rearwardly from the case 76. Further, both side portions of the fuel tank 13 are covered with a left cover 81 and a right cover (not shown in the drawing) respectively. [0018]
The seat 16 is a member which has an insertion portion which is mounted on a rear lower portion thereof engaged with engaging portions on the seat rail 23, 24 side and a pair of left and right mounting members 85, 86 (only symbol 85 on a reader's side being shown in the drawing) formed on a front lower portion are fixed to the seat rail 23, 24 side using bolts. Here, numeral 87 indicates grab rails which are mounted on the rear portions of the seat rails 23, 24. [0019]
A helmet holder 18 is mounted on an upper portion of a rear side guard member 46. The helmet holder 18 is a member which can be locked and is arranged in a state that the helmet
holder 18 dose not obstruct the movement of legs of a rider who rides on a rear portion of the seat 16. Here, numerals 91, 92 (only symbol 91 on a reader's side being shown in the drawing) indicate bar members which are extended obliquely in the rearward and downward directions from the sub frames 32, 33. Steps 93, 94 (only symbol 93 on a reader's side being shown in the drawing) for a pillion who rides on a rear portion of the seat 16 are respectively mounted on lower ends of the bar members 91, 92, and, at the same time, the bar members 91, 92 are connected to the lower portion of the rear guard member 46 by way of a frame side stay 96. [0020]
In the engine 41, an intake device 102 and an exhaust device 103 are mounted on a cylinder head 101 which is mounted on a cylinder portion 73.
The intake device 102 includes a carburetor 106 which constitutes a fuel supply device which is connected to an upper portion of the cylinder head 101 by way of an intake tube 105 and an air cleaner 108 which is connected to the carburetor 106 by way of a connecting tube 107. The air cleaner 108 is arranged in a space which is surrounded by the seat rails 23, 24, the center frames 28, 31 and the sub frames 32, 33. Here, it is needless to say that the above-mentioned carburetor 106 may be formed of an injector or a throttle body of the fuel injection device.
[0021]
Here, numeral 111 indicates an intake opening of the air cleaner 108, numeral 112 indicates a throttle cable which is extended from a throttle grip (not shown in the drawing) mounted on the bar handle 11 to the carburetor 106, numeral 113 indicates a clutch cable which is extended from a clutch lever mounted on the bar handle 11 to the power unit 43, and numeral 114 indicates a battery which is arranged on a depth side of the air cleaner 108. [0022]
The exhaust device 103 includes an exhaust pipe 115 which is mounted on a lower portion of the cylinder head 101 and a muffler 116 which is mounted on a rear end of the exhaust pipe 115. In the exhaust device 103, the muffler 116 is supported by way of the depth side bar member 92 and a muffler stay 117 which is mounted on a distal end of the bar member 92. [0023]
The swing arm 45 is a member which is mounted on the pivot plates 37, 38 by way of the pivot shaft 121. A rear wheel 122 and respective lower ends of a pair of left and right rear cushion units 123, 123 (only symbol 123 on a reader's side being shown in the drawing) are mounted on a rear end portion of the swing arm 45. Here, an upper end of the rear cushion unit 123 is mounted on rail lower brackets 125, 125 (only symbol 125 on a reader's side being shown in the drawing) which are
respectively mounted on the seat rails 23, 24. Numeral 126 indicates a chain cover.
The pivot plates 37, 3 8 are members which mount power unit support portions 131 to 133 for supporting an upper portion and a rear portion of the power unit 43 thereon. [0024]
Here, numeral 137 indicates a stand, numeral 138 indicates a rear fender which is mounted on the seat rails 23, 24 and rail lower brackets 125, 125 so as to cover the rear wheel 122 from above, numerals 141, 142 (only symbol 141 on a reader's side being shown in the drawing) indicate a pair of left and right rear blinkers which are mounted on a blinker stay 143 mounted on the rear fender 138, and numerals 144, 146 respectively indicate a rear cover and a tail lamp which are mounted on the rear fender 138. [0025]
Fig. 2 is a side view (an arrow (FRONT) shown in the drawing indicating a front portion of the vehicle, hereinafter, the same definition being applicable) of the front portion of the motorcycle according to the present invention. In the drawings, a pair of left and right handle stoppers 151, 152 (only symbol 151 on a reader's side being shown in the drawing) which control a rotational angle of the bar handle 11 are mounted on an upper surface 54a of the bottom bridge 54, a projecting portion 153 which is capable of coming into contact with the
handle stoppers 151, 152 is mounted on a front portion of a lower end portion of the head pipe 21, and a stopper cover 156 is mounted on the cowl support stay 57 for covering the respective handle stoppers 151, 152 and the projecting portion 153. [0026]
The stopper cover 156 prevents small stones or the like from entering between the handle stopper 151 and the projecting portion 153 and between the handle stopper 152 and the projecting portion 153 and, at the same time, the stopper cover 156 prevents the handle stoppers 151, 152 and the projecting portion 153 from being exposed to the outside thus enhancing the appearance of a front portion of the vehicle.
The handle stoppers 151, 152, the projecting portion 153 and the stopper cover 156 described above are members which constitute a handle stopper mechanism 154. [0027]
The cowl support stay 57 includes a pair of left and right main bars 161, 162, meter stays 163 which are mounted on upper ends of the respective main bars 161, 162, a mounting portion protective bar 164 which is mounted on one of the main bars 162 for protecting a mounting portion of the handle lock device 56, a lower portion of the front cowl 12, a blinker support stay 62, a cowl lower portion stay 166 which is mounted on lower portions of the main bars 161, 162 for supporting the number
plate 63, and the above-mentioned stopper cover 156 which is mounted on lower portions of the main bars 161, 162. [0028]
The meter stay 163 includes a meter support portion 168 which supports the inner cowl 61 in addition to the meter 58, cowl left/right support portions 171, 172 (only symbol 171 on a reader's side being shown in the drawing) which support left and right portions of the front cowl 12, and a pair of left and right bridge upper portion mounting portions 174, 176 (only symbol 174 on a reader's side being shown in the drawing) which are mounted on an upper surface 53a of the top bridge 53 using bolts 173. Here, a plurality of numerals 178 indicate bolts for mounting the meter 58 and the inner cowl 61 on the meter support portion 168, numerals 181, 181 (only symbol 181 on a reader's side being shown in the drawing) indicate bridge lower portion mounting portions which are respectively mounted on lower ends of the main bars 161, 162 for being inserted into the mounting holes 54b, 54b (only symbol 54b on a reader's side being shown in the drawing) formed in the bottom bridge 54. [0029]
Further, in Fig. 2, left and right sideward projecting portions 56a, 56b which are provided to the handle lock device 56 are respectively mounted on the lower portion of the top bridge 53 using a pair of left and right hexagonal socket head cap bolts 185, 185 (only symbol 185 on a reader's side being
shown in the drawing) and, at the same time, a pin protective member 187 which covers an outer portion of the lock pin 186 which is reciprocally mounted in the handle lock device 56 is jointly fastened with the above-mentioned handle lock device 56 using the hexagonal socket head cap bolts 185, 185, wherein a lower portion of the hexagonal socket head cap bolt 185 on a depth side is covered with the mounting portion protective bar 164. [0030]
The lock pins 186 of the handle lock device 56 are members which are insertable into hollow portions 188a, 191a (only symbol 188a on a reader's side being shown in the drawing) of a pair of left and right cylinder portions 188, 191 (only symbol 188 on a reader's side being shown in the drawing) mounted on a front portion of an upper portion of the head pipe 21. [0031]
Further, in Fig. 2, the inner cowl 61 includes a pair of downwardly extending portions 61a, 61b (only symbol 61a on a reader's side being shown in the drawing) which extend downwardly from left and right sides of the rear portion of the inner cowl 61. By mounting the respective downwardly extending portions 61a, 61b on the blinker support stay 62 using small bolts 193, 193 (only symbol 193 on a reader's side being shown in the drawing), a support portion of the front cowl 12 which is constituted of the cowl left and right support
portions 171, 172 of the meter stay 163 and a support portion of the front cowl 12 and the front blinkers 66, 67 (only symbol 66 on a reader's side being shown in the drawing) which is constituted of the blinker support stay 62 are covered with the inner cowl 61. [0032]
The blinker support stay 62 is a member which is jointly mounted on a cowl lower portion stay 166 of the cowl support stay 57 with the lower portion mounting portion 12a of the front cowl 12 by fastening using one bolt 195 and one nut 196. [0033]
The number plate 63 is mounted on a pair of left and right columnar projecting portions 197, 197 (only symbol 197 on a reader's side being shown in the drawing) which are mounted on a front surface of the blinker support stay 62 using bolts 198 (only symbol 198 on a reader's side being shown in the drawing) respectively. [0034]
Here, numeral 201 indicates a box nut for mounting the top bridge 53 on an upper end of the steering system not shown in the drawings. Numerals 202, 202 (only symbol 202 on a reader's side being shown in the drawing) indicate bolts for mounting the fork single bodies 51, 52 (only symbol 51 on a reader's side being shown in the drawing) on the top bridge 53. Numerals 203, 203 (only symbol 203 on a reader's side being
shown in the drawing) indicate handle support members which support the bar handle 11. Numerals 204, 204 (only symbol 204 on a reader's side being shown in the drawing) indicate nuts for mounting the handle support members 203, 203 on the top bridge 53. Numeral 206 indicates a key for manipulating the handle lock device 56. Numerals 207, 207 (only symbol 207 on a reader's side being shown in the drawing) indicate nuts for mounting the front blinkers 66, 67 on the blinker support stay 62. [0035]
Fig. 3 is a side view (exploded view) of the handle lock device protective structure according to the present invention, wherein the top bridge 53 includes a bridge main body 211 on which a steering system (not shown in the drawings) and the fork single bodies 51, 52 (see, Fig. 2, however, numeral 52 not shown in the drawings) are mounted, a substantially L-shaped lower support member 212 which is mounted on a bottom surface of the bridge main body 211, and a pair of left and right nuts 213, 213 (only symbol 213 on a reader's side being shown in the drawing) which are mounted on the lower support member 212. Here, numerals 212a, 212a (only symbol 212a on a reader's side being shown in the drawing) indicate bolt insertion holes which allow hexagonal socket head cap bolts 185 to pass therethrough. [0036]
The handle lock device 56 also functions as a main switch and includes sideward projecting portions 56a, 56b (the sideward projecting portion 56b on a depth side not shown in the drawing) on a side surface a main body portion 56c thereof. The sideward projecting portions 56a, 56b are respectively portions where through holes 56d and facing portions 56e which are formed on end portions of the through holes 56d are formed. [0037]
The pin protective member 187 forms two mounting holes 187a therein. By inserting two hexagonal socket head cap bolts 185 in the respective through holes 56d, the respective mounting holes 187a and the respective bolt insertion holes 212a and by threadedly engaging the hexagonal socket head cap bolts 185 with the respective nuts 213, the pin protective member 187 is jointly fastened to the top bridge 53 together with the handle lock device 56. [0038]
As shown in Fig. 1 and Fig. 3, according to the present invention, in the motorcycle 10 which mounts the handle lock device 56 on one of bar handle 11 (see Fig. 1) side which constitutes the steering handle side and the head pipe 21 (see Fig. 2) side which supports a bar handle 11 and is capable of locking the locking pin 186 which is reciprocally mounted in the handle lock device 56 to another of the steering handle side and the head pipe side, to either one of the bar handle
11 side and the head pipe 21 side, the pin protective member 187 which constitutes a protective member which protects the lock pin 186 of the handle lock device 56 is jointly mounted together with the handle lock device 56 by fastening. [0039]
Since the pin protective member 187 is jointly mounted together with the handle lock device 56 to either one of the bar handle 11 and the head pipe 21 by fastening, compared to a case in which the bar handle 11 and the pin protective member 187 are respectively separately mounted using bolts and nuts or the like, in the present invention, it is possible to jointly mount the handle lock device 56 and the pin protective member 187 by fastening using the same hexagonal socket head cap bolts 185 and hence, the number of parts can be reduced and a cost can be reduced. [0040]
Fig. 4 is a perspective view of the pin protective member according to the present invention, wherein the pin protective member 187 is formed of a simple press-formed member having the following constitution. That is, the pin protective member 187 is formed of a simple press formed member which is constituted of a planar bridge-side mounting portion 187b which is mounted on the top bridge 53 (see Fig. 2) and a pair of left and right downwardly extending members 187c, 187d which are bent downwardly from left and right ends of the bridge-side
mounting portion 187b, wherein mounting holes 187a, 187a are
formed in the bridge-side mounting portion 187b.
[0041]
Fig. 5 is an explanatory view for explaining the handle lock device protective structure according to the present invention and corresponds to a view as viewed in the direction of an arrow 4 in Fig. 2.
The pin protective member 187 is constituted by arranging the downwardly extending members 187c, 187d on the left and right sides of lock pin 186 of the handle lock device 56. In the drawing, the handle lock device 56 and the pin protective member 187 are arranged on a position when a vehicle advances straightly (numeral 215 indicating a straight line extended in the longitudinal direction) and the lock pin 186 is in a state that the lock pin 186 is stored in the inside of the handle lock device 56. [0042]
Numeral 187e in the drawing indicates a curved portion indented toward a front portion of the vehicle which connects rear peripheries of the left and right downwardly extending members 187c, 187d. By forming the curved portion 187e in the pin protective member 187 in this manner, it is possible to prevent the formation of a straight gap between the pin protective member 187 and the cylindrical portions 188, 191. Accordingly, when the lock pin 186 projects from the handle
lock device 56, it is possible to prevent the lock pin 186 from
being easily cut.
[0043]
Further, the cowl support stay 5 7 which is mounted on the top bridge 53 and the bottom bridge 54 (see Fig. 2) includes the mounting portion protective bar 164 in one member 162, wherein a distal end portion of the mounting portion protective bar 164 is overlapped to one hexagonal socket head cap bolt 185, to be more specific, a hexagonal socket 185a. [0044]
As shown in Fig. 2 and Fig. 5 described above, the present invention is characterized in that the cowl support stay 57 which supports the front cowl 12 (see Fig. 1) is formed on the front portion of the head pipe 21, and, on the cowl support stay 57, a mounting portion of the handle lock device 56 on the top ridge 53, to be more specific, the mounting portion protective bar 164 which extends toward the hexagonal socket 185a of the hexagonal socket head cap bolt 185 and constitutes a second protective member is integrally formed. [0045]
Since the mounting portion protective bar 164 which protects the hexagonal socket head cap bolt 185 which mounts the handle lock device 56 on the top bridge 53 is formed on the cowl support stay 57, it is possible to protect the hexagonal socket 185a of the hexagonal socket head cap bolts
185 by the mounting portion protective bar 164 whereby, together with the pin protective member 187 which is jointly fastened with the above-mentioned handle lock device 56, it is possible to enhance the protective function for the handle lock device 56. [0046]
The manner of operation of the handle lock device protective structure described above is explained hereinafter.
Fig. 6 is an operational view showing an operation of the handle lock device protective structure according to the present invention.
To perform the handle locking, the bar handle is turned
by an angle a at maximum to the right, for example, from the position which is taken when the vehicle advances straightly so as to integrally rotate the top bridge 53, the handle lock device 56, the pin protective member 187, and the mounting portion protective bar 164 of the cowl support stay 57 with
the bar handle by the angle a. [0047]
Then, when the key is inserted into the handle lock device 56 and is turned to a position "LOCK", the lock pin 186 of the handle lock device 56 projects to the outside from the inside and enters the inside of a hollow portion 191a of one cylindrical portion 191 on the head pipe 21 side. Accordingly,

the handle locking is completed. [0048]
For example, even when an attempt is made to cut the lock pin 186 through a gap between the handle lock device 56 and the cylindrical portion 191 using a metal cutting saw as indicated by a straight line 217 in the drawing for a theft, the metal cutting saw is engaged with the downwardly extending members 187c, 187d of the pin protective member 187 and hence, it is necessary to cut the lock pin 186 together with the downwardly extending members 187c, 187d thus requiring a large amount of time. Accordingly, it is possible to enhance a theft preventing effect with the provision of the downwardly extending members 187c, 187d of the pin protective member 187 . [0049]
Further, even an attempt is made to cut the lock pin 18 6 as indicated by a straight line 218 in the drawing, the metal cutting saw is engaged with the bridge-side mounting portion 187b of the pin protective member 187 and the body portion 56a of the handle lock device 56 thus also making the cutting of the lock pin 186 difficult. [0050]
Further, even when an attempt is made to turn the hexagonal socket head cap bolts 185 to remove the handle lock device 56 from the top bridge 53, although one hexagonal socket head cap bolts 185 can be turned, another hexagonal socket head
cap bolts 185 has the hexagonal socket 185a thereof covered with the mounting portion protective bar 164 and hence, it is possible to insert a hexagonal wrench into the hexagonal socket 185a whereby the hexagonal socket head cap bolts 185 cannot be loosened. Accordingly, with the provision of the mounting portion protective bar 164, it is possible to further enhance the theft preventing effect. [0051]
As shown in Fig. 1, Fig. 3, Fig. 4 and Fig. 6, the present invention is characterized in that the handle lock device 56 is mounted on a lower portion of the top bridge 53 which supports the bar handle 11 which constitutes the steering handle and connects left and right front forks 36 and, at the same time, the pair of left and right downwardly extending members 187c, 187d (see Fig. 4) are provided to the pin protective member 187, and the downwardly extending members 187c, 187d are arranged to cover the outer portion of the lock pin 186. [0052]
By mounting the handle lock device 56 on the lower portion of the top bridge 53 and, at the same time, by covering the outer portion of the lock pin 186 with the downwardly extending members 187c, 187d which are provided to the left and right sides of the pin protective member 187, it is possible to arrange the lock pin 186 of the jointly fastened handle lock device 56 and the downwardly extending members 187c, 187d close
to each other and hence, it is possible to shorten lengths of the downwardly extending members 187c, 187d whereby the pin protective member 187 can be miniaturized and made light-weighted. [0053]
Here, although the pin protective member 187 is formed separately from the top bridge 53 as shown in Fig. 3 in this embodiment, the downwardly extending members 187c, 187d (symbol 187d not shown in the drawing) may be integrally formed on the lower support member 212 of the top bridge 53. [0054]
Further, as shown in Fig. 5, although the mounting portion protective bar 164 is formed on one main bar 162 of the cowl support stay 57, the present invention is not limited to such a constitution and the mounting portion protective bar may be mounted on other main bar 161. [0055] [Industrial Applicability]
The handle lock device protective structure of the
present invention is preferably applicable to a motorcycle,
j
[Description of Reference Numerals and Signs] [0057]
10: motorcycle, 11: steering handle (bar handle), 12: cowl (front cowl), 21: head pipe, 36: front fork, 53: top bridge, 56: handle lock device, 57: cowl support stay, 164: second protective member (mounting portion protective bar), 186: lock pin, 187: protective member (pin protective member), 187c,187d: downwardly extending member.

[Designation of Document] Claims [Claim 1]
A handle lock device protective structure of a motorcycle which mounts a handle lock device on one of a steering handle side and a head pipe side which supports a steering handle and is capable of locking a locking pin which is reciprocally mounted in the handle lock device to another of the steering handle side and the head pipe side, wherein
to either one of the steering handle side and the head pipe side, a protective member which protects the lock pin of the handle lock device is jointly mounted together with the handle lock device by fastening. [Claim 2]
A handle lock device protective structure of a motorcycle according to claim 1, wherein the handle lock device is mounted on a lower portion of a top bridge which supports the steering handle and connects left and right front forks and, at the same time, a pair of left and right downwardly extending members are provided to the protective member, and the downwardly extending members are arranged to cover an outer portion of the lock pin. [Claim 3]
A handle lock device protective structure of a motorcycle according to claim 1 or claim 2, wherein a cowl support stay which supports a cowl is arranged in front of the head pipe,
and on the cowl support stay, a second protective member which extends toward a mounting portion of the handle lock device to the top bridge is integrally formed.
4. A handle lock device protective structure of a motorcycle
substantially as hereinbefore described with reference to the
accompanying drawings.

Documents:

http://ipindiaonline.gov.in/patentsearch/GrantedSearch/viewdoc.aspx?id=m2dHid9NQRHlNuPEX/Iiog==&loc=+mN2fYxnTC4l0fUd8W4CAA==

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Patent Number

272728

Indian Patent Application Number

2717/DEL/2005

PG Journal Number

18/2016

Publication Date

29-Apr-2016

Grant Date

22-Apr-2016

Date of Filing

10-Oct-2005

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, OF 4-1, CHUO 1-CHOME, WAKO-SHI, SAITAMA, JAPAN
2	HIROAKI MATSUURA	C/O KABUSHIKI KAISHA HONDA GIJUTSU KENKYUSHO, OF 4-1, CHUO 1-CHOME, WAKO-SHI, SAITAMA, JAPAN

PCT International Classification Number

B62H 5/00

PCT International Application Number

N/A

PCT International Filing date

PCT Conventions:

#	PCT Application Number	Date of Convention	Priority Country
1	2004-376389	2004-12-27	Japan