JP4479454B2 - Anti-theft mounting structure for motorcycles - Google Patents

Description

  The present invention relates to an antitheft mounting structure for a motorcycle.

  In recent years, an antitheft tool called a U-shaped lock device has been used to prevent theft of motorcycles. Since this type of anti-theft device is a relatively large member and bulky, various devices have been devised when mounted and stored in a motorcycle without impairing the appearance of the vehicle.

As a specific example of the storage method of the anti-theft tool, for example, there is a method in which a storage room for articles is provided below an openable / detachable operation seat and the anti-theft tool is stored together with other articles in the storage room. (For example, refer to Patent Document 1). There is also a type in which a loading platform is provided on the vehicle body behind the driver's seat, and an antitheft device is detachably mounted along the lower surface of the luggage support member of the loading platform. (For example, refer to Patent Document 2).
JP 2000-108967 A JP 2002-127968 A

  However, in the method of storing the anti-theft device in the storage chamber below the driving seat, the driving seat must be opened and closed (or attached / detached) every time the anti-theft device is put in and out. If they are stored, the antitheft device cannot be taken in and out unless they are taken out, and the work becomes complicated.

  In addition, in the case of a method of mounting an anti-theft device on the loading platform behind the driver's seat, the loading platform must be formed so that the anti-theft device can be mounted, and furthermore, there is a problem that this method cannot be adopted for a vehicle without a loading platform. Arise.

  The present invention has been made in consideration of the above-described circumstances, and it is an object of the present invention to provide an antitheft device mounting structure for a motorcycle that can be easily and quickly detached without requiring a dedicated mounting tool. To do.

In order to solve the above-described problem, the motorcycle antitheft mounting structure according to the present invention includes a pair of left and right seat rails from the main frame constituting the body frame toward the rear, as described in claim 1. A motorcycle that extends and arranges a driving seat above these seat rails, and arranges a rear fender below the driving seat so as to cover the rear wheel from above, and supports the rear fender suspended by the seat rail. In the above, the upright walls extending upward at the left and right side edges of the rear fender are formed integrally with the rear fender, and the through holes penetrating the left and right are formed in the respective upright walls, while the lock is bent in a substantially U shape. The anti-theft device comprises a member and a straight locked member that is detachably mounted between the open ends of the lock member. The antitheft device, as the base and the locked member of the lock member for connecting the arm portions of the left and right is maintained in a state of being exposed outside the vehicle body standing wall of the left and right above the rear fender, with the through hole The left and right arm portions of the lock member are detachably supported, and an interval holding portion extending outward in the width direction of the vehicle body is provided on the outside of the left and right standing walls so as to project integrally with the standing wall, and the interval The amount of protrusion of the holding portion is determined by placing a hand between the upright wall and the base of the locking member and between the upright wall and the locked member so that at least one of the base of the locking member or the locked member is placed. This is set to a grippable amount .

In order to solve the above-described problem, as described in claim 2 , a guide portion provided with a guide groove capable of guiding the left and right arm portions of the lock member on the upper surface of the rear fender is integrated with the rear fender. Formed.

  According to the anti-theft device mounting structure for a motorcycle according to the present invention, troublesome work is not required when the anti-theft device is attached and detached, and the anti-theft device can be attached and detached easily and quickly, and a dedicated attachment such as a rear cargo bed is provided. No tools are needed.

  Also, a part of the antitheft device can be used as a stand grip. Furthermore, the antitheft tool can be easily inserted. Furthermore, excessive force does not act on the rear fender, and it is not necessary to apply special reinforcement to the rear fender. Therefore, the rear fender can be formed simply and lightly.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

  FIG. 1 is a left side view showing an example of a motorcycle to which the present invention is applied. As shown in FIG. 1, the motorcycle 1 has a body frame 2, and an engine 3 is mounted on the lower front portion of the body frame 2. The body frame 2 of the motorcycle 1 is mainly composed of a tank rail 4, a down tube 5, a seat rail pillar 6, a main frame 7, and a seat rail 8.

  The tank rail 4 extends rearward and obliquely downward from the rear surface of the head pipe 9 provided at the foremost portion of the vehicle body frame 2. A pair of left and right down tubes 5 extend downward and rearward from the lower rear surface of the head pipe 9, and extend downward from the lower side of the engine 3. The seat rail pillar 6 is formed extending upward.

A pair of left and right main frames 7 extend rearward and obliquely downward from the rear end of the tank rail 4 and are connected to the lower portion of the seat rail pillar 6. A pair of left and right seat rails 8 extend rearward from the upper end portion of the main frame 7, and the rear end portion of the seat rail pillar 6 is connected to the vicinity of the center portion of the seat rail 8. A fuel tank 10 is installed on the tank rail 4, and an operation seat 11 is installed above the seat rail 8.

  The head pipe 9 is provided with a steering mechanism 12. The steering mechanism 12 is provided with a front fork 14 and a handle bar 15 that rotatably support the front wheel 13, and the front wheel 13 is steered to the left and right by the handle bar 15. On the other hand, a swing arm 17 is pivotally mounted around the pivot shaft 16 on a pivot shaft 16 installed near the joint between the lower end of the main frame 7 and the rear end portion of the down tube 5. A rear wheel 18 is rotatably supported at the rear end. A rear fender 19 is disposed below the operation seat 11 so as to cover the rear wheel 18 from above. The rear fender 19 is supported by being suspended by the seat rail 8, for example.

  A carburetor 21 and an air cleaner 22 that constitute an engine intake system are connected to the rear part of the cylinder head 20 that constitutes the engine 3, while an exhaust pipe 23 that is an engine exhaust system is connected to each cylinder at the front part of the cylinder head 20. Connected, gathered together at the bottom of the engine 3 and extends rearward, and a muffler 24 is connected to the downstream end thereof. The engine 3 is also provided with an oil cooler 25 that cools the lubricating oil that becomes hot.

  FIG. 2 is an enlarged left side view of the rear fender 19. FIG. 3 is an enlarged plan view of the rear fender 19. Further, FIG. 4 is an arrow view of the rear fender 19 as viewed from diagonally forward. 5 is a cross-sectional view taken along line VV in FIG. 2, and FIG. 6 is a cross-sectional view taken along line VI-VI in FIG.

  As shown in FIGS. 2 to 6, the rear fender 19 is, for example, an integrally molded product of synthetic resin, and has a central portion 26 suspended and supported by the seat rail 8 below the operation seat 11, and mudguards provided before and after the central portion 26. 27F and 27R. Standing walls 29 extending upward are formed integrally with the rear fender 19 at the left and right side edge portions of the substantially plate-like bottom plate 28 constituting the central portion 26. Each of the standing walls 29 has a pair of through holes 30 penetrating from side to side in the front-rear direction, that is, a total of four through holes 30 are formed to constitute a mounting device 32 for the anti-theft device 31.

  Here, the anti-theft tool 31 held by the attachment device 32 is detachable between, for example, a lock member 33 obtained by bending a metal bar into a substantially U shape and an open end of the lock member 33. Generally, it is called a U-shaped locking device composed of a straight member to be locked 34 that is erected.

  Then, the left and right arm portions 35 of the lock member 33 are passed from the through hole 30 of one standing wall 29 to the through hole 30 of the other standing wall 29 and engaged with the locked member 34 outside the other standing wall 29. That is, the antitheft device 31 is held by the attachment device 32 in a state where the base portion 36 of the lock member 33 that connects the left and right arm portions 35 and the locked member 34 are exposed to the outside of the vehicle body of the left and right standing walls 29 of the rear fender 19. . The antitheft device 31 is preferably held in a state where the straight locked member 34 is arranged on the left side in the width direction of the vehicle body.

  On the outer side of the left and right standing walls 29 of the rear fender 19, a spacing holding portion 37 is provided integrally with the standing wall 29 so as to extend outward in the width direction of the vehicle body. The protruding amount of the interval holding portion 37 is between the standing wall 29 and the base portion 36 of the lock member 33 and between the standing wall 29 and the straight locked member 34 in a state where the antitheft device 31 is held by the attachment device 32. The lid is set to an amount that allows the rider to grip and hold at least one of the base portion 36 of the lock member 33 and the member to be locked 34.

  On the other hand, a guide portion 39 having a guide groove 38 capable of guiding the left and right arm portions 35 of the lock member 33 on the upper surface of the bottom plate 28 of the central portion 26 between the through holes 30 formed in the left and right standing walls 29 is a bottom plate. 28 and a single unit. The pair of left and right seat rails 8 are connected by a plurality of bridge members 40, and a part of the seat rails 8 is above the left and right arm portions 35 of the lock member 33 with the antitheft device 31 held by the mounting device 32. The bridge member 40 is provided with an upper holding portion 41 that holds the arm portion 35 from above.

  Next, the operation of this embodiment will be described.

  A standing wall 29 extending upward is formed integrally with the rear fender 19 at both left and right edges of a substantially plate-like bottom plate 28 constituting the central portion 26 of the rear fender 19, and a pair of transparent walls penetrating the respective standing walls 29 in the left and right directions. The holes 30 are formed so as to be separated from each other in the front-rear direction, and the left and right arm portions 35 of the lock member 33 constituting the anti-theft device 31 are detachably supported by these through-holes 30. Sometimes the troublesome work of removing the driving seat 11 is unnecessary, and the antitheft device 31 can be easily and quickly attached and detached. In addition, since a dedicated attachment such as a rear cargo bed is not required, an unnecessary burden is not imposed on the user.

  Further, the antitheft device 31 is configured such that the base portion 36 of the lock member 33 that connects the left and right arm portions 35 and the locked member 34 are held in a state of being exposed to the outside of the vehicle body of the left and right standing walls 29 of the rear fender 19. This facilitates the engagement / disengagement of the locking member 33 and the locked member 34. In particular, the rear fender 19 is provided with an interval holding portion 37 that protrudes outward in the width direction of the vehicle body on the outside of the left and right standing walls 29 integrally with the standing wall 29, and the protruding amount of the interval holding portion 37 is set as an antitheft device. In a state where 31 is held by the attachment device 32, the rider puts his hand between the standing wall 29 and the base portion 36 of the locking member 33 and between the standing wall 29 and the straight locked member 34, and the base portion of the locking member 33. If the amount 36 or the member to be locked 34 is set to an amount capable of being gripped, the base portion 36 or the member to be locked 34 of the lock member 33 can be securely gripped by the rider, and these portions can also be used as a stand grip.

  Furthermore, a guide portion 39 having a guide groove 38 capable of guiding the left and right arm portions 35 of the lock member 33 on the upper surface of the bottom plate 28 of the central portion 26 between the through holes 30 formed in the left and right standing walls 29 is provided on the bottom plate. Since it is formed integrally with 28, the lock member 33 can be easily inserted.

  The pair of left and right seat rails 8 are connected by a plurality of bridge members 40, and a part of the seat rails 8 is held above the left and right arm portions 35 of the lock member 33 in a state where the antitheft device 31 is held by the attachment device 32. By providing the upper holding portion 41 for holding the arm portion 35 from above on the bridge member 40, the vehicle body lifting load applied when the antitheft device 31 is used as a stand grip is directly applied to the seat rail 8. Can receive. As a result, an excessive force does not act on the rear fender 19, and it is not necessary to apply special reinforcement to the rear fender 19, so that the rear fender 19 can be formed simply and lightly.

1 is a left side view of a motorcycle showing an embodiment of a motorcycle antitheft attachment structure according to the present invention. The enlarged left side view of a rear fender. The enlarged plan view of a rear fender. The arrow view which looked at the rear fender from diagonally forward. Sectional drawing which follows the VV line | wire of FIG. Sectional drawing which follows the VI-VI line of FIG.

Explanation of symbols

1 motorcycle 2 body frame 7 main frame 8 seat rail 11 driving seat 18 rear wheel 19 rear fender 29 rear wall 30 through-hole 31 anti-theft device 32 anti-theft device mounting device 33 lock member 34 locked member 35 arm portion 36 of lock member Lock member base 37 Interval holding portion 38 Guide groove 39 Guide portion 40 Bridge member 41 Upper holding portion

Claims (2)

A pair of left and right seat rails are extended rearward from the main frame constituting the body frame, and a driving seat is disposed above these seat rails, and the rear wheels are covered from above above the driving seat. In a motorcycle in which a rear fender is disposed and this rear fender is suspended and supported by the seat rail, an upright wall extending upward is formed integrally with the rear fender at both right and left side edges of the rear fender, The anti-theft device comprises a lock member bent into a substantially U-shape and a straight locked member that is detachably mounted between the open ends of the lock member while forming a through-hole penetrating. and, the theft preventing device, the base and the locked member of the lock member for connecting the arm portions of the left and right of the rear fender To be held in a state of being exposed outside the vehicle body standing wall of the left and right arm portions of the right and left of the locking member in the through hole removably supported, and the width direction of the vehicle body on the outside of the vertical wall of the right and left An interval holding portion extending outwardly is provided integrally with the upright wall, and the protruding amount of the interval holding portion is set between the upright wall and the base of the lock member and between the upright wall and the locked member. An antitheft device mounting structure for a motorcycle , wherein a rider puts a hand in between and sets the base of the lock member or at least one of the members to be locked to a grippable amount . The anti-theft device mounting structure for a motorcycle according to claim 1, wherein a guide portion having guide grooves capable of guiding the left and right arm portions of the lock member on the upper surface of the rear fender is formed integrally with the rear fender .

Images