JP2000129981A - Anti-theft device for motorcycle - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an anti-theft device which is sturdy, compact, simple in structure, low in cost, and excellent in anti-theft characteristic. SOLUTION: An anti-theft device for motorcycle is provided with a rod fitting piece 1 fixed to an inverted stand 13 of a motorcycle, a bent rod 2 fitted to the rod fitting piece 1 in an attachable/detachable manner, and a locking means to fit the bent rod 2 to the rod fitting piece 1 in a locked condition, and when the bent rod 2 is fitted to the rod fitting piece 1, the action to kick the inverted stand 13 backward is prevented by the contact of a tip part 2a of the bent rod 1 with the ground, and the inverted stand 13 is kept in the stand-up condition.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an anti-theft device for a motorcycle (including a motorbike, a scooter and the like) having an inverted stand.

[0002]

2. Description of the Related Art Recently, when a motorcycle or the like is parked outdoors or parked in a bicycle parking lot, it may be suitable for theft. As an anti-theft device, there is an anti-theft device such as a wire-type lock, a chain-type lock, and a U-shaped bar lock, which connects and fixes a wheel of a motorcycle to a motorcycle fixing portion or a wheel and a ground fixing portion.

[0003]

However, the antitheft device has the following problems.

The anti-theft device can be cut relatively easily by using tools such as a nipper and a bolt clipper, and the anti-theft device is removed. Further, if the anti-theft device is to be firmly formed, the device becomes large and complicated, which increases the cost.

SUMMARY OF THE INVENTION In view of the above problems, an object of the present invention is to provide an anti-theft device which is strong, compact, simple in structure and low in cost, and has excellent anti-theft characteristics.

[0006]

In order to achieve the above object, the anti-theft device according to the present invention comprises: a rod attachment fixed to an inverted stand of a motorcycle; and a bent rod removably attached to the rod attachment. Locking means for attaching the bending rod to the rod mounting device in a locked state, and when the bending rod is mounted on the rod mounting device, the operation of kicking the inverted stand backward is performed by the tip of the bending rod being grounded. The inverted stand is configured to be hindered and to be maintained in a stand state.

[0007]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described below with reference to the drawings.

As shown in FIGS. 1 and 2, an embodiment of the anti-theft device according to the present invention is an inverted stand 1 for a motorcycle.
3, a rod attachment 1 is fixed to the rod attachment 1, and a bent rod 2 is attached to the rod attachment 1 so as to be insertable and removable.

The rod mounting member 1 is made of metal.
It is composed of a main body 1a and a cover 1b. A rod insertion hole 4 into which the base end 2c of the bent rod 2 can be inserted is provided from the front surface to the center of the main body 1a. A cylinder lock 9 is embedded and fixed substantially at the center of the side surface. The cylinder lock 9 has a movable projection 10 which comes and goes by the rotation operation of the key 11 on the distal end surface, and the movable projection 10 is configured to project into the rod insertion hole 4. Semicircular grooves 3a and 3b for mounting a stand are formed on the rear surface of the main body 1a and the front surface of the cover 1b, respectively. These semicircular grooves 3
After the cover 1b is attached to the main body 1a so as to hold the inverted stand 13 using a and 3b, the two are fixed and integrated by a pair of screws 12a and 12b and a stand fixing screw 15.

The bent rod 2 is formed by bending a circular steel bar, and the upper base end 2c and the lower end 2a are substantially parallel to each other, and have a shape in which they are bonded by a skewed portion 2b. ing. A flat portion 14 is formed at the base end 2c, and a locking hole 6 for engaging with the movable projection 10 is formed substantially at the center thereof. When the movable projection 10 is projected by the rotation operation of the key 11, the cylinder lock 9 fixes the bent rod 2 to the rod fixture 1 in a locked state by engagement of the movable projection 10 with the locking hole 6. . In the locked state, the operation of kicking the inverted stand 13 backward is performed by the bending rod 2.
Is prevented by the grounding of the tip 2c, and the inverted stand 13 is maintained in the stand state.

A method of using the antitheft device of the present invention will be described below.

When using the anti-theft device of the present invention,
First, at the place where the motorcycle to which the present invention is mounted is parked, the inverted stand 13 is raised up to the stand state.
Next, when the bending rod 2 is taken out, the base end portion 2c is engaged with the bending rod engaging hole 4, inserted until it comes into contact with the inner wall, attached, the key 11 is inserted into the cylinder lock 9, and the rotation operation is performed. The state is as shown in FIG. In this state, even if an attempt is made to kick the inverted stand 13 backward, the tip 2a of the bending rod 2 is prevented from touching the ground, and the inverted stand 13 is maintained in the standing state.

To release the anti-theft device, first, the key 11 is inserted into the cylinder lock 9 and rotated. Next, the bending rod 2 is slid forward and removed from the bending rod engaging hole 4. As a result, an operation of kicking the inverted stand 13 backward becomes possible.

The present invention is not limited to the embodiments described above. By coating the entire surface with fluorescent paints of various colors or the like, the surface can be visually recognized even in a dark place, thereby preventing theft.

When a theft alarm (for example, a vibration sensor alarm) or the like is detachably attached to the anti-theft device of the present invention, even if an attempt is made to destroy the anti-theft device of the present invention, the loud alarm is generated due to vibration or the like. Sounds an alarm to prevent theft.

By widening the lower part of the tip 2a to increase the contact area with the ground, stability is increased even when the bicycle is parked in an unstable place such as a muddy place.

By forming a concave groove on the inner wall of the bent rod engaging hole 4 and a convex portion on the base end 2c of the bent rod 2 respectively, a poor engagement between the stand fixture 1 and the bent rod 2 can be prevented. It can be avoided, and locking and bicycle parking can be performed smoothly.

[0018]

According to the anti-theft device of the present invention, since it is made of metal and is firmly formed, it cannot be easily cut or broken by tools such as nippers and bolt clippers. It is difficult to match the target theft. In addition, since it is small and can be formed simply, the cost can be reduced.

[Brief description of the drawings]

FIG. 1 is a perspective view showing an embodiment of an anti-theft device according to the present invention.

FIGS. 2A and 2B are views showing an embodiment of the anti-theft device of the present invention, wherein FIG. 2A is a top sectional view and FIG. 2B is a side view.

FIG. 3 is a perspective view showing an example of attachment in one embodiment of the anti-theft device of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Rod fixture 2 Bending rod 2a Tip part 13 Inverted stand

Claims (1)

[Claims] A rod mounting fixture fixed to an inverted stand of a motorcycle, a bent rod removably mounted to the rod mounting fixture, and locking means for mounting the bent rod to the rod mounting fixture in a locked state. When the bent rod is attached to the rod mounting device, the operation of kicking the inverted stand backward is prevented by the tip of the bent rod being grounded, so that the inverted stand is maintained in the stand state. Characteristic anti-theft device for motorcycles.