JPS6141674Y2 - - Google Patents

Description

[Detailed description of the invention] This invention relates to a safety device for a motorcycle side stand, which prevents the engine from increasing when the side stand is up (or out) even if the accelerator grip is operated. It is.

The motorcycle is equipped with a side stand, which is used when parking. When this side stand is erected for use, it is in an inclined position such that the pivot portion at the top end is at the rearmost position and the bottom end, which is the ground-contacting part, is at the front. Therefore, this side stand will remain in the upright position unless the driver intends to retract it, so if the side stand is not retracted and the vehicle is driven, the lower end may come into contact with the road when turning left, etc. There is a risk of falling.

Therefore, proposals have been made for warning devices and safety devices for when the vehicle starts driving with the side stand up. One example is a device that makes a buzzer sound when you try to drive with the side stand up, but this requires a switch connected to the side stand, and the buzzer must not sound when parking. However, there is a problem in that the circuit or mechanism is complicated, and water resistance must also be taken into consideration.

Another example is one in which the engine does not operate when the side stand is up. In this case, an electric circuit is also required, so
There is a problem with the circuit or water resistance. There are some models that allow the clutch to disengage if you try to drive with the side stand up, but this has the problem of making the mechanism complicated. Furthermore, some models lock the accelerator grip when the side stand is put up, but in this case, if you try to forcibly turn the locked accelerator grip,
There is a problem in that the mechanism is strained and may cause failure.

The present invention has a simple structure and ensures safety by disconnecting the accelerator grip and the throttle valve of the carburetor when the side stand is put up.

One embodiment of the present invention will be explained with reference to the figures.
is the accelerator grip of a motorcycle, 2 is the engine, and 3 is the carburetor. By grasping the accelerator grip 1 and rotating it toward you,
The opening of a throttle valve (not shown) in the carburetor 3 is controlled via wires 4 and 5.

Conventionally, the accelerator grip 1 and the throttle valve of the carburetor 3 were connected by one wire, but in the present invention, this is separated into two wires 4 and 5, one on the accelerator grip 1 side and the other on the throttle valve side. , a relay section 6 is provided between them. The relay part 6 is a mechanism that breaks the connection between the wires 4 and 5, and when the side stand 8 whose upper end is pivotally connected to the vehicle body frame 7 is erected (the state indicated by the broken line in the figure) due to the structure described later, the connection is broken. is becoming cut off.

The relay section 6 will be explained. This relay part 6 is supported in the direction in which an L-shaped lever 10 is rotatably supported around a shaft 9 and a wire 5 connected to one end advances and retreats, and is engaged with one end of the lever 10. The actuating arm 12 is provided with a hole 11.
One end 10a of the lever 10 is fitted into the hole 11 of the operating arm 12, and the other end 10a of the lever 10 is inserted into the hole 11 of the actuating arm 12.
The aforementioned wire 4 is locked to 0b. Thereby, the lever 10 and the actuating arm 12 are in a detachable relationship. One end of a wire 13 is connected to the side stand 8 near the pivot joint, and the other end of the wire 13 is locked to the tip of the operating arm 12.

When the side stand 8 is erected as shown by the broken line in the figure, the wire 13 is pulled, the actuating arm 12 is displaced as shown by the broken line in the figure, and the lever 10
One end 10a of the lever 10 is removed from the hole 11 of the actuating arm 12, and the connection between the actuating arm 12 and the lever 10 is severed. 14 and 15 are springs; the spring 14 applies a clockwise force to the lever 10, and the spring 15 applies a force to the operating arm 12 in a direction to maintain engagement with the lever 10.

This device thus constructed operates as follows. That is, when the side stand 8 is retracted as shown by the solid line in the figure, the wire 13 does not pull the actuating arm 12, so if you pull the wire 4 upward by rotating the accelerator grip 1 toward you, the shaft 9 The operating arm 12 is moved to the right in the figure via the lever 10 which rotates counterclockwise around , and the throttle valve of the carburetor 3 is opened via the wire 5 connected to this operating arm 12. It turns out. This causes the engine 2 to increase its rotation, so that the motorcycle starts running.

When the side stand 8 is upright as shown by the broken line in the figure, the wire 13 is connected to the actuating arm 12.
Since the lever 10 is pulled to the state shown by the broken line in the figure, the one end 10a of the lever 10 falls out of the hole 11 of the actuating arm 12, and the connection between the lever 10 and the actuating arm 12 is severed. Therefore, even if the accelerator grip 1 is rotated toward the front, the lever simply spins and the engine 2 does not rev up, making it impossible to drive.

In the embodiment described above, the L-shaped lever 10, the actuating arm 12, etc. were used as the relay part 6, but the relay part 6 of the present invention is not limited to this mechanism, and other mechanisms may be used. But it's good. In short, the mechanism may be any mechanism as long as it disconnects the accelerator grip 1 and the throttle valve of the carburetor 3 when the side stand 8 is raised.

Since the present invention is configured as described above, it has the following effects.

When the side stand is up, the engine does not rev up, so you cannot drive the vehicle as it is, which makes it safer.

In this case, even if the engine speed does not increase,
Since the accelerator grip rotates without being locked, compared to a device that locks the accelerator grip, there is no stress on the accelerator grip, there is no possibility of it stretching, and there is no problem with the wire system.

Vehicles with automatic centrifugal clutches are safer because they prevent the vehicle from jumping out when the side stand is up.

[Brief explanation of the drawing]

The figure is a system diagram of one implementation of the present invention. 1...Accelerator grip, 2...Engine, 3
...carburetor, 4,5,13...wire,
6...Relay part, 7...Vehicle frame, 8...Side stand, 9...Shaft, 10...Lever, 11...
...hole, 12...operating arm.

Claims (1)

[Scope of utility model registration request] In a motorcycle in which the opening of the throttle valve of the carburetor is controlled by a wire that moves according to the operation of the accelerator grip, a relay part is provided in the middle of the wire, and the relay part is used to connect the throttle valve side to the accelerator grip side and the throttle valve side. A mechanism is provided in which a member connected to one of the wires divided into two and a member connected to the other are detachable, and one end of the two detachable members is connected to the side stand. A safety device for a side stand of a motorcycle, characterized in that the other end of a wire that pulls one of the two members in a detaching direction when the side stand is erected is locked.