JPS597625Y2 - Clutch lever vibration prevention device - Google Patents

Description

[Detailed description of the invention] This invention prevents rattling and vibration of the clutch lever by interposing a spring washer between the engagement portion between the shaft that interlocks with the clutch lever and the pressure disc. This invention relates to a clutch lever vibration prevention device.

Multi-plate clutches are commonly used as clutches in motorcycles and the like.

In motorcycles using this multi-disc clutch, when the clutch lever is operated, an arm provided near the multi-disc clutch is rotated via a clutch wire, which rotates a pinion integrated with the arm. Normally, a shaft with a rack that the pinion engages moves forward and backward, and the pressure plate of the multi-disc clutch that engages with this shaft is operated to engage and engage the multi-disc clutch. be.

In such a clutch operating mechanism, it is undesirable that vibration and rattling occur due to play in the clutch lever.

For this reason, in order to prevent this vibration and rattling,
An extendable adjuster mechanism and a compression coil spring are interposed between the clutch wire side and the arm, but the problem is that the adjuster mechanism is located inside the clutch force bar, making it difficult to adjust it. .

Moreover, the length of the compression coil spring and the extension/contraction length of the adjuster mechanism could not be made sufficiently long due to the installation space, so it was not possible to adjust the play of the clutch wire with this adjuster mechanism alone. Conventionally, there was a problem in that an adjuster mechanism for adjusting the play of the clutch wire had to be provided in addition to this adjuster mechanism.

The object of the present invention is to provide a clutch lever vibration prevention device that eliminates these problems.

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

In FIG. 1, 1 is a counter shaft, and 2 is a primary drip gear rotatably supported by the counter shaft 1.

A clutch sleeve 3 is integrally connected to the primary driven gear 2 by a pin 4.

Reference numeral 5 denotes a spline formed at the end of the countershaft 1, and this spline 5 is located within the clutch sleeve 3.

A clutch sleeve hub 6 is spline-fitted into the spline 5.

Reference numeral 7 denotes a stopper flange protruding from the outer periphery of the left end of the clutch sleeve hub 6.

3a is a slit formed in the clutch sleeve 3; 6a is a slit formed in the clutch sleeve 3;
is a long groove formed on the outer peripheral surface of the clutch sleeve hub 6.

These slots}3a and long grooves 6a are the countershaft 1.
extends parallel to the axis of

8 is a clutch drive plate (clutch plate), and 9 is a clutch driven plate (clutch plate).

The clutch drive plate 8 and the clutch driven plate 9 are each shaped like a ring plate.

This clutch drive plate 8 is the clutch sleeve 3
The protrusion 8a on the outer periphery is fitted into the slit 3a so as to be movable only in the longitudinal direction.

Clutch driven plate 9 is clutch sleeve hub 9
The projection 9a on the inner periphery is fitted into the long groove 6a so as to be movable only in the longitudinal direction.

Both plates 8 and 9 are alternately overlapped in the axial direction of the countershaft 1.

10 is a pinion.

The pinion 10 is rotated by a clutch lever (not shown), a clutch wire connected to the clutch lever, and an arm that is integrally attached to the pinion 10 and is rotated by the forward and backward movement of the clutch wire in the longitudinal direction. It is now possible to do so.

11 is the rack that meshes with the pinion 10, 12 is the rack 1
1 is a pressure disk rotatably supported by the shaft 12; 14 is a shaft 12;
A flange protruding from the clutch sleeve hub 6 side, 1
5 is the clutch sleeve hub 6 and pressure disc 1
This is a compression coil spring interposed between 3 and 3.

This compression coil spring 15 presses the pressure disk 13 toward the plates 8 and 9, and supports both the plates 8 and 9 between the stopper flange 7 and the pressure disk 13.

Between the flange 14 and the pressure disc 13,
A thrust bearing 16 and a thrust washer 17 are provided, and a wave washer 18 as a spring washer is interposed between the thrust washer 17 and the pressure disk 13.

This wave washer 18 always biases the shaft 12 to the left in the drawing, and eliminates the play in the meshing portion of the pinion 10 and the rack 11 and the play in the clutch lever.

Next, the operation of the multi-plate clutch having such a structure and the operation of the clutch lever vibration prevention device will be explained.

When the engine (not shown) is operated, the primary driven gear 2 rotates, and the clutch sleeve 3 and clutch drive plate 18 rotate together.

Here, the clutch driven plate 9 is in pressure contact with the clutch drive plate 8 due to the spring force of the compression coil spring 15, so the clutch drive plate 8
When the shaft rotates, it rotates together with this and transmits this rotation to the countershaft.

When the pinion 10 is rotated clockwise via the clutch wire and the arm (not shown) by pulling the clutch lever (not shown) from this state, the shaft 12 is displaced to the right and the pressure disc 13 is activated by the spring force of the compression coil spring 15. Plate 8 is displaced to the right against
, 9 is released, the countershaft 1
Rotational force transmission to is cut off.

Furthermore, by releasing the clutch lever, the clutch lever, pressure disk 13, etc. are returned to their original states by the spring force of the compression coil spring 15.

Regardless of whether or not the clutch lever is operated, the wave washer 18 removes the play in the meshing part between the pinion 10 and the rack 11 and the play in the clutch lever, so that the clutch lever will not move when vibrations occur in the motorcycle body. will not vibrate or rattle.

In addition, in the embodiment described above, the wave washer 18 was used as the spring washer, but it is not necessarily necessary to use the wave washer 18 as the spring washer.
Spring washers of other shapes may also be used.

Further, in the embodiment described above, a wave washer 18 is provided between the flange 14 of the shaft 12 and the pressure disc 15 of the clutch operating mechanism configured to interlock the shaft 12 and the clutch wire using a rack and pinion. However, a wave shear is installed between the flange 14 of the shaft 12 and the pressure disc 15 of a clutch operating mechanism in which the shaft 12 is operated in the axial direction by means other than a rack and pinion. It is also possible to intervene.

As explained above, the present invention eliminates vibrations caused by play in the clutch lever by interposing a spring washer between the engagement portion between the clutch pressure disc and the shaft 1 that is linked to the clutch lever. With this structure, there is no need to provide an adjuster mechanism on the clutch force bar side to adjust the play of the clutch lever as in the conventional case.

As a result, the number of parts used in the clutch operating mechanism can be reduced, and the manufacturing cost thereof can be reduced.

In addition, the spring shear can be assembled by simply placing it between the pressure disc and the shaft that interlocks with the clutch lever, which has the advantage of improving the work efficiency of assembling the clutch operating mechanism compared to conventional methods. .

[Brief explanation of drawings]

The drawing is a sectional view showing the relationship between a multi-plate clutch and a clutch lever vibration prevention device according to an embodiment of the present invention. 8...Clutch drive plate, 9...
・・Clutch driven plate, 12・・Shaft, 13・・Pressure disc, 14・
...Flange, 16...Thrust bearing, 17...Thrust washer 18...
... Wave washer (spring washer).

Claims (1)

[Scope of utility model registration request] A clutch in which a pressure disc that constantly urges a clutch drive plate and a clutch driven plate in a pressure contact direction is operated by a shaft that engages with the pressure disc and is interlocked with a clutch lever, wherein the pressure disc and the shaft A vibration prevention device for a clutch lever, characterized in that a spring washer is interposed between an engaging part of the clutch lever.