JPS6127777A - Steering lock protective device for motorcycle - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed Description of the Invention] (Industrial Application Field) This invention relates to a steering lock protection device for a motorcycle that protects a steering lock that prevents heavy vehicle theft from being illegally destroyed. be.

(Prior Art) As is well known, for example, a steering lock for a motorcycle to prevent heavy vehicle theft is provided on a bracket that supports a front fork on a handle shaft that is rotatably provided on a head pipe. . This steering block consists of a lock accommodating part, a lock pin support part, and a lock pin, and the lock pin is engaged with the head pipe by operating the lock accommodating part, thereby making the steering wheel shaft unrotatable.

By the way, if this steering lock is forcibly opened with a screwdriver or the like, the lock pin will come off and the vehicle will likely be stolen.

For this reason, as shown in Japanese Utility Model Application Publication No. 57-165580, the entire proximal end of the lock accommodating portion is covered with a bracket,
Some cover edges are protected so that they cannot be easily pried open with a screwdriver or the like.

(Problem to be solved by the invention @) In this type of steering lock protection device, the bladder
/ A hole must be provided in the hole, and the lock must be formed so as to cover the entire proximal end of the lock housing.

By the way, providing a hole in the bracket by casting requires complicated molding, which makes it more difficult to form an acid mold, and the hole is formed by extending the bracket, resulting in an increase in weight.

This invention was made against the background of the above circumstances.The bracket that surrounds the steering lock has a simple shape, is easy to mold, and is lightweight, while also making it difficult to destroy the steering lock. It is an object of the present invention to provide a steering lock protection device for a motorcycle that can prevent theft without destroying instruments.

(Means for solving the problem) In order to solve the above-mentioned object, the present invention has a front fork supported via a bracket on a handle shaft rotatably provided on a head pipe. A motorcycle is provided with a steering lock that engages with the head pipe to control rotation of the handlebar shaft, and an instrument, wherein one side of the steering port is provided with a bracket, and the other side is provided with a bracket. It is characterized by an I7 surrounded by instruments.

(Function) In the present invention, the bladder which holds the steering opening only surrounds a part of the outer periphery of the steering opening, which makes the shape simpler and easier to mold. In addition, the steering opening is connected to the bracket,
Because it is surrounded by the instrument installed on the bracket,
It is difficult to insert a screwdriver or the like and it is difficult to destroy it, and if a screwdriver or the like is inserted into the s or l yen, the instrument will be destroyed and become unusable, so it will not easily lead to theft.

(Example) Hereinafter, an example of the present invention will be described in detail based on the accompanying drawings.

Figure 1 is a side view of a motorcycle to which this invention is applied;
3 is a plan view of the steering lock protection device, FIG. 3 is a cross-sectional view taken along the line ■--■ in FIG. 2, and FIG. 4 is a cross-sectional view taken along the line IV-rV in FIG. 2.

In the figure, l is a body frame of a motorcycle, and a handle shaft 3 is rotatably supported on a head pipe 2 of this heavy frame l. A front fork 4 is connected to the handle shaft 3 by an upper bladder throat 5 and an under bracket 6, and a handle 7 is connected to the upper bladder throat 5.
is fixed by a pair of mounting plates 8.

The upper bladder throat 5 is attached to the handle shaft 3 with a nut 9, and the upper bladder throat 5 is molded by casting. And the steering lock l is located in the center of the front side.
Along the side of O, a covering part 5a that covers the half circumference thereof is integrally formed, and on both sides of the covering part 5a, holding parts 5b to which instrument holding plates 12 for holding instruments 11 are attached are integrally formed.

The steering lock 10 is composed of a lock housing part 10a, a lock pin support 1tob, and a lock pin 10C. It is attached by screwing to the bottom of the.

In front of the lock pin 10c, a pin engagement member 14 is disposed with a pair of legs 14a fixed to the head pipe 2, with a predetermined interval formed between the head pipes 2. Also,
The pin-related body 14 has a pair of left and right lock holes 14b, and the lock pin 10c is engaged with the lock plate 14b and lowered, making it impossible to turn the handle 7.

A pair of mounting ports 15 are fixed to the instrument holding plate 12,
This attachment port 15 is inserted into the holding portion 5b via a grommet 16 made of an elastic body. Then, together with the mounting plate 18 of the head pipe 17.

It is tightened and fixed with bolt 19.

The upper part of a support pipe 20 is fixed to the mounting plate 18, and a support bracket 21 for the headlight 17 is fixed to this support pipe 20 by welding.

The support bracket (21) has a predetermined width and covers the lower part of the steering lock 10 from the side.

Furthermore, when installed, the dryer h17 is located below the instrument 11 and covers the front side of the steering lock 10. A brake cable 22 and a clutch cable 23 are inserted into the space formed between the bracket 5 and the instrument holding plate 12 on both sides of the steering lock lO.Next, the operation of this embodiment will be explained. do.

The steering lock 10 is attached to the armature 2 pub bracket 5, with a covering part 5a surrounding half the rear side of the lock housing part 10a and half the front side with the instrument 11, and further extending downward. Surrounded by h17. Therefore, the covering part 5a of the A/I pa bracket 5 surrounding the lock housing part 10a
In order to cover the instrument 11, the covering part 5a should be formed so as to cover half the circumference (casting of the buckwheat bracket 5 is easy and lightweight).

In addition, the steering lock 10 is covered with a cover part 5a of the upper bracket 5 on the rear side, an instrument 11 on the front side, a headlight 17 on the lower front side, and a support bracket 21 for the headlight 17 on the lower side side. covered with. Therefore, it is difficult to insert a screwdriver or the like from the outside into the base of the cover of the lock housing portion 10a of the steering lock 10.

Furthermore, if a screwdriver or the like is inserted between the steering block 10 and the instrument holding plate 12, the instrument 11 will be damaged, so theft can be prevented.

(Effects of the Invention) As described above, this invention provides a steering opening/lock in the bracket that holds the front fork on the steering wheel shaft, and this steering lock is surrounded by the bracket and the instrument. It is no longer necessary to form the lock to enclose all the questions,
Accordingly, the molding of the plaque and soto becomes easier and the weight is reduced.

In addition, it is difficult to destroy the steering opening/tsuk,
Moreover, this destruction involves the destruction of the meter, thereby making it possible to prevent theft.

[Brief explanation of the drawing]

Figure 1 is a side view of a motorcycle to which this invention is applied;
3 is a plan view of the steering lock protection device, FIG. 3 is a cross-sectional view taken along line m--■ in FIG. 2, and FIG. 4 is a cross-sectional view taken along line IV-IV in FIG. ? ... 9 dove pipe 3... Handle shaft 4...
Front fork 5...A/I pa bracket 5a...covering part 5b...holding part 10...
Steering lock 11... Instrument 17... Headlight 3rd
Figure 4-467=

Claims (1)

[Claims] A front fork is supported via a bracket on a handle shaft rotatably provided on a head pipe, and the bracket is provided with a steering lock that engages with the head pipe and locks the handle shaft from turning, and an instrument. A steering lock protection device for a motorcycle, wherein one side of the steering lock is surrounded by a bracket and the other side is surrounded by the instrument.