JP3455328B2 - Motorcycle anti-theft device - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a motorcycle antitheft device.

[0002]

2. Description of the Related Art In motorcycles, in order to prevent the vehicle from being stolen during parking, an anti-theft device is used in which the steering of the front wheels is locked so that the vehicle cannot run.

As an anti-theft device of this type, as shown in FIG. 9, in a scooter type motorcycle 1, for example, the steering mechanism 2 is rotated to one side, for example, the left side, and the left end portion of the handle bar 3 and the vehicle body frame. 4 and 4 are connected by a lock device such as a chain lock 5 so that the front wheels 6 cannot be steered.

Specifically, the base portion 7 of the chain lock 5 penetrates the vehicle body cover 8 and is fixed to the vehicle body frame 4. A chain 9 extends from the base 7, and a lock device 10 is provided at the tip of the chain 9. On the other hand, an engaging portion (not shown) is provided on the left end portion of the handlebar 3, and the handlebar 3 and the vehicle body frame 4 are connected by engaging the locking device 10 with the engaging portion. There is.

When the chain lock 5 is not used, such as when driving, the lock device 10 is engaged with an engaging portion (not shown) projecting from the base 7 as shown in FIG. I am trying.

[0006]

However, when the chain lock is stored as described above, the appearance is unfavorable and there is a risk that it may interfere with traveling.

Further, many parts and processes are required to fix the base portion of the chain lock to the vehicle body cover, which leads to an increase in cost. Further, if a hole is made in the vehicle body cover, water may enter the inside of the cover through the hole.

Furthermore, it takes a high cost to make the chain of the chain lock compatible with cutting by a chain cutter, an iron saw, a file, or the like.

The present invention has been made in consideration of the above-mentioned circumstances, and the antitheft device can be easily engaged and disengaged by using a hooking portion such as a helmet hook capable of hooking a helmet. It is an object of the present invention to provide an excellent antitheft device for a motorcycle.

Another object of the present invention is to provide an anti-theft device for a motorcycle, which has a small number of parts, is excellent in cutting resistance and does not impair the aesthetic appearance.

Another object of the present invention is to provide an antitheft device for a motorcycle which can be removed and stored in an article storage chamber when not in use.

[0012]

In order to solve the above-mentioned problems, the anti-theft device for a motorcycle according to the present invention has a front wheel steered by a steering mechanism and a vehicle body as described in claim 1. A motorcycle configured such that a driving seat is provided on the frame so as to be openable and closable, while a locking portion is provided on the vehicle body frame, and the locking portion is covered and concealed by closing the driving seat. An anti-theft device in which one end side of a connecting rod is configured to be detachably engageable with the hooking portion and the other end side of the connecting rod is detachably connectable to a handlebar of the steering mechanism. The antitheft device is provided so as to restrict the rotation of the steering mechanism.

In order to solve the above-mentioned problems, as described in claim 2, the connecting rod is formed of a metal rod, and a locking plate is pivotally attached to one end of the connecting rod. The other end of the connecting rod is swingably attached to a lock body incorporating a lock mechanism and is rotatable about an axis, and one end of the connecting rod is hooked via the locking plate. The other end of the connecting rod is detachably connectable to the handlebar via the lock body, while being engageably and disengageably engageable with the stopper.

[0014]

In the present invention having the above-mentioned structure, the front wheel is steered by the steering mechanism and the operating seat is provided on the body frame so as to be openable and closable, while the body frame is provided with the latching portion. One end of the connecting rod is configured to be detachably engageable with the engaging portion of the motorcycle configured so that the engaging portion is covered and concealed by closing the seat. Since the other end is provided with an antitheft device configured to be detachably connectable to the handlebar of the steering mechanism and the antitheft device is configured to restrict the rotation of the steering mechanism, the helmet can be hooked. Since the anti-theft device can be easily engaged and disengaged by using the hooking portion such as the helmet hook, the wearability is excellent and the convenience is also high. Further, when the anti-theft device is not used as in driving, it can be stored in the article storage room or the like, and it does not hinder the running or impair the appearance.

Further, the connecting rod is formed of a metal rod, and a locking plate is swingably attached to one end of the connecting rod, and the other end of the connecting rod has a lock body having a lock mechanism. Is pivotably attached to the latch rod so as to be rotatable about an axis, and one end of the connecting rod is detachably engageable with the latching portion via the retaining plate, while The other end of the rod is configured to be detachably connectable to the handlebar via the lock body, so cutting resistance can be improved without cost and the shape of the anti-theft device can be modified relatively easily. It is possible and versatility is enhanced.

[0016]

Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 is a left side view showing an example of a scooter type motorcycle as a small vehicle to which the present invention is applied. As shown in FIG. 1, this scooter-type motorcycle 11
Has a vehicle body frame 12, and a head pipe 14 is provided at a front end of a down tube 13 which is a front frame of the vehicle body frame 12. The head pipe 14 is provided with a steering mechanism 18 including a front fork 16 that rotatably supports the front wheels 15 and a handlebar 17, and the handlebars 17 steer the front wheels 15 rotatably left and right. The handle bar 17 is made of a general metal pipe, but may be made of a resin pipe.

The rear portion of the vehicle body frame 12 is a rear portion frame 19 of a monocoque structure formed by press-molding a steel plate, for example, and the inside thereof is an article storage chamber 20 in which a helmet or the like (not shown) can be stored.

On the other hand, a pair of left and right stays 21 are provided in the lower center of the body frame 12, and a front portion of a power unit 23 is pivotally attached to a pivot shaft 22 provided between the stays 21 via a link 24. To be done. The power unit 23 includes an engine 70 and an engine 7
The transmission case 25 is provided to accommodate a power transmission mechanism extending rearward from one side of 0. The conductive case 25 also serves as a swing arm, and is elastically supported by the rear frame 19 by the rear shock absorber 26. The rear wheel 27, which is a drive wheel, is held at the rear end of the conduction case 25.

On the other hand, the body frame 12 has a body cover 28.
Is covered with the outer shape. A driving seat 29 is installed above the article storage chamber 20.

The driving seat 29, as shown in FIG.
For example, it is attached to the vehicle body by the front opening / closing hinge 30 so as to be openable and closable. Also, the driving seat 29 is the article storage room 2
It also doubles as a 0 lid and can be locked by a seat lock device (not shown).

The opening / closing hinge 30 is an upper plate 30a fixed to a bottom plate 31 of the driving seat 29.
And a lower plate 30b fixed to the vehicle body frame 12 at the front end of the opening of the article storage chamber 20, both plates 30a and 30b being pivotally attached to each other. Further, a helmet hook 32, which is a hooking portion for hooking a helmet (not shown), is integrally or integrally formed on one side of the lower plate 30b. Further, the helmet hook 32 is covered and hidden by closing the driving seat 29. The helmet hook 32 may be directly provided on the body frame 12.

By the way, the helmet hook 3 has a D-shaped D ring provided at the end of the chin strap.
2, the driver's seat 29 is closed and held by being locked by a seat lock device to prevent the helmet from being stolen.

FIG. 3 is a side view of the anti-theft device 33, and FIG.
Is a plan view of the anti-theft device 33, and FIG.
It is sectional drawing which follows the VV line of FIG.

As shown in FIGS. 3 to 5, the anti-theft device 33 includes a locking plate 34, a lock body 36 having a lock mechanism 35 therein, and a connecting rod for connecting the locking plate 34 and the lock body 36. And 37.

The locking plate 34 has a locking hole 38 having substantially the same diameter as the D ring of the helmet at one end, while the other end is bent in a U shape and is formed from a solid metal rod. A rivet 39 is attached to one end of the connecting rod 37 so as to be swingable in the direction of arrow 40 shown in FIG. A peripheral groove 41 is formed at the other end of the connecting rod 37.
1 is held by a pair of spring pins 43 provided in a mounting hole 42 formed on one side of the lock body 36. The width of the circumferential groove 41 is set to be larger than the diameter of the spring pin 43, and the connecting rod 37 is connected to the arrow 4 shown in FIG.
It is attached so as to be swingable in the directions of 4, 45 and rotatable about its axis.

On the other hand, a lock hole 46 is formed on the other side of the lock body 36. Further, the lock body 36 is provided with, for example, a cylinder lock 47, and by inserting a key (not shown) into the cylinder lock 47 and turning the key, the cam 48 is rotated. This cam 48 is rotated by a slider 49.
And the lock plate 50 provided at the tip of the slider 49 is moved into and out of the lock hole 46. The lock plate 50 is always biased by the spring 51 so as to project into the lock hole 46.

As shown in FIG. 1, a locking member 52 is provided at the left end of the handlebar 17. This locking member 52
As shown in FIGS. 6 (a) and 6 (b), the screw 5
3, a head-equipped locking collar 54 having, for example, a T-shaped cross-section attached to the head of the screw 53, a receiving collar 55 attached to the lower end of the head-equipped locking collar 54, and a head. It is arranged between the locking collar 54 and the receiving collar 55,
From a moving collar 57 that is constantly urged toward the head-side locking collar 54 side by a spring 56, a nut 58 that is screwed to the screw 53, and rubber that is sandwiched between the receiving collar 55 and the nut 58. It is composed of the formed grommet 59.

As shown in FIG. 7, the locking member 52 is attached to the end of the handle bar 17 made of a metal pipe. The locking member 52 is inserted inside the handlebar 17, and the nut 58 is rotated by rotating the screw 53.
As a result, the grommet 59 expands in the radial direction and comes into pressure contact with the inner surface of the handle bar 17 to prevent it from coming off.

Next, the operation of this embodiment will be described.

When the anti-theft treatment of the scooter type motorcycle 11 is performed, as shown in FIG. 8, first turn the steering mechanism 18 in the direction in which the locking member 52 of the handle bar 17 is provided, that is, to the left in this embodiment. To move.

Next, the lock hole 46 of the lock body 36 is fitted into the locking member 52. At this time, as shown in FIG. 7, as the locking member 52 enters the lock hole 46, the screw 53 of the locking member 52 and the locking collar 54 with the head portion.
The head pushes back the lock plate 50 once. at the same time,
The step portion 60 formed in the lock hole 46 has a moving collar 57.
The receiving collar 55 is pushed toward the bottom. Thereby,
A locking groove 61 is formed between the head of the head locking collar 54 and the moving collar 57, and the lock plate 50 is locked in the locking groove 61 to lock the lock body 36 and the handle bar 17.
Are connected.

Next, the seat lock device (not shown) is unlocked to open the operation seat 29, and the helmet hook 32, which is a hooking portion provided on the opening / closing hinge 30, is engaged with the locking plate 3.
The locking hole 38 of No. 4 is locked, the driving seat 29 is closed, and the seat lock device is locked. The order of the procedures described above may be reversed.

As described above, the handlebar 17 and the vehicle body frame 12 are connected by the antitheft device 33, the front wheels 15 cannot be steered, and the theft of the scooter type motorcycle 11 is prevented.

Further, it suffices to provide the locking member 52 at the end portion of the handle bar 17, no conventional machining on the vehicle body side is required, and the cost is not increased. It can also be easily retrofitted to conventional models. And the anti-theft device 33 can be easily used by using the helmet hook 32 capable of hanging the helmet.
Since it can be engaged and disengaged, it has excellent wearability and high convenience.

Further, since both ends of the anti-theft device 33 are attachable to and detachable from the handlebar 17 and the helmet hook 32, respectively, when the anti-theft device 33 is not used, such as when driving, it is used to store the anti-theft device 33. It can be stored in a car, etc., and does not interfere with running or impair the appearance.

Furthermore, since the connecting rod 37 is formed of a metal rod, the cutting resistance can be improved without increasing the cost.

The locking plate 34 is the connecting rod 3
7 is pivotally attached to one end side of the connecting rod 37 and the other end of the connecting rod 37 is attached to the lock body 36 so as to be pivotable and rotatable about its axis.
3 is a handlebar 1 whose shape can be changed relatively easily.
It can be applied to a plurality of models having different distances and angles between the end of 7 and the helmet hook 32, and is highly versatile.

[0039]

As described above, according to the anti-theft device for a motorcycle of the present invention, the front wheel is steered by the steering mechanism and the operation seat is provided on the body frame so as to be opened and closed, while A hook is provided on the frame, and the one end of the connecting rod can be detachably attached to the hook of the motorcycle configured so that the hook is covered and concealed by closing the operation seat. An anti-theft device is provided which is structured so that it can be locked while the other end of the connecting rod is detachably connectable to the handlebar of the steering mechanism. The anti-theft device restricts rotation of the steering mechanism. Since it was configured to
Since the antitheft device can be easily engaged and disengaged by using a hooking portion such as a helmet hook capable of hooking the helmet, the wearability is excellent and the convenience is also high. Further, when the anti-theft device is not used as in driving, it can be stored in the article storage room or the like, and it does not hinder the running or impair the appearance.

Further, the connecting rod is formed of a metal rod, and a locking plate is swingably attached to one end of the connecting rod, and the other end of the connecting rod has a lock body having a lock mechanism. Is swingably attached to the connecting rod so as to be rotatable about an axis, and one end side of the connecting rod is configured to be engageably and disengageably engageable with the engaging portion via the engaging plate. The other end of the rod is configured to be detachably connectable to the handlebar via the lock body, so cutting resistance can be improved without cost and the shape of the anti-theft device can be modified relatively easily. It is possible and versatility is enhanced.

[Brief description of drawings]

FIG. 1 is a left side view of a scooter type motorcycle as a small vehicle showing an embodiment of an anti-theft device for a motorcycle according to the present invention.

FIG. 2 is a perspective view showing the vicinity of an opening / closing hinge of a driving seat.

FIG. 3 is a side view of the anti-theft device.

FIG. 4 is a plan view of the anti-theft device.

5 is a cross-sectional view taken along the line VV of FIG.

6A and 6B are a side view of a locking member and a cross-sectional view taken along line bb thereof.

FIG. 7 is a cross-sectional view of a handlebar end portion.

FIG. 8 is a plan view of a scooter type motorcycle.

FIG. 9 is a left side view of a scooter type motorcycle showing an example of a conventional anti-theft device.

FIG. 10 is a perspective view showing an example of a stored state of a conventional antitheft device.

[Explanation of symbols]

11 motorcycles 12 body frame 15 front wheels 17 Handlebar 18 Steering mechanism 20 article storage room 29 Driving seat 30 open / close hinge 32 Helmet hook (hanging part) 33 Anti-theft device 34 Locking plate 35 Lock mechanism 36 Rock body 37 Connecting rod 52 Locking member

Continuation of the front page (56) Reference JP-A-53-91241 (JP, A) Actually open 48-38549 (JP, U) Actually open 53-107099 (JP, U) Actual public 30-1420 (JP , Y1) (58) Fields investigated (Int.Cl. ⁷ , DB name) B62H 5/04

Claims (2)

(57) [Claims] 1. A front wheel 15 is steered by a steering mechanism 18, and a driving seat 2 is mounted on a body frame 12.
The motorcycle 11 is configured such that the vehicle body frame 12 is provided with a hooking portion 32, and the body frame 12 is provided with a hooking portion 32, and the hooking portion 32 is covered and concealed by closing the operation seat 29. , One end side of the connecting rod 37 can be detachably engaged with the hooking portion 32, while the other end side of the connecting rod 37 can be detachably connected to the handlebar 17 of the steering mechanism 18. An anti-theft device for a motorcycle, characterized in that the anti-theft device 33 is provided, and the anti-theft device 33 restricts the rotation of the steering mechanism 18. 2. The connecting rod 37 is formed of a metal rod, and a locking plate 34 is swingably attached to one end of the connecting rod 37, and a lock mechanism 35 is attached to the other end of the connecting rod 37. It is swingably attached to a built-in lock body 36 and rotatable about an axis, and one end side of the connecting rod 37 is provided with the engaging portion 32 via the engaging plate 34.
The motorcycle according to claim 1, wherein the other end of the connecting rod 37 is detachably connectable to the handlebar 17 via the lock body 36 while being removably engaged with the handlebar 17. Anti-theft device.