JPH07174164A - Clutch disk - Google Patents

Abstract

PURPOSE:To prevent an abnormal sound in a clutch disk by providing clutch disk surface directional elasticity in a cushioning plate, and forming a friction plate relatively movably in a clutch disk surface direction relating to a hub. CONSTITUTION:Cushioning plate 9 has elasticity in a surface direction of a clutch disk 1, and a friction plate 10 can be relatively moved in a surface direction of the clutch disk 1 relating to a hub 2. Accordingly, in the case that the center of rotation of a flywheel 12 and the center of the clutch disk 1 are not in agreement, when a clutch is connected, the clutch disk 1 tends to rotate with a position displaced from its center serving as the center, but by relatively moving the friction plate 10 in a surface direction of the clutch disk 1 relating to the hub 2, eccentric force applied to a spline part of the hub 2 and an output shaft 11 can be absorbed by the cushioning plate 9. Since the flywheel 12 and the friction plate 10 are not relatively moved, transmitting force of the clutch is prevented from decreasing. In this way, generation of an abnormal sound in the spline part can be prevented.

Description

Detailed Description of the Invention

[0001]

FIELD OF THE INVENTION The present invention relates to a clutch disc.

[0002]

2. Description of the Related Art As a conventional clutch disk, the one described in Japanese Patent Application Laid-Open No. 64-87925 is known. This consists of a hub that is splined to the output shaft, a drive plate that is rotatably connected to the hub by a predetermined angle, a plurality of cushioning plates provided on the outer peripheral side of the drive plate, and both sides of the cushioning plate. It is a clutch disc provided with a friction plate provided. When the clutch is pressed by the clutch plate, the clutch disc moves axially on the output shaft, and the friction plate is pressed against the flywheel that rotates integrally with the engine. Rotate together.

As a second embodiment, the above publication discloses a structure in which the cushioning plate has a bent portion, and the top of the bent portion is in contact with the friction plate on the flywheel side. In this clutch disc, the cushioning plate has elasticity in the surface direction before the clutch is connected. It is pinched between the plate and the friction plate on the pressure plate side, deforms until it becomes a straight line, and the elasticity in the surface direction disappears.

[0004]

By the way, the center of rotation of the flywheel and the center of the clutch disc may not coincide with each other due to an error in assembling the clutch. In this case, when the clutch is connected, the clutch disc is displaced from the center of the clutch disc. Rotate around the position. Then, in the conventional clutch disc as described above, the cushioning plate does not have elasticity in the clutch disc surface direction, and the friction material of the clutch disc cannot move relative to the hub in the clutch disc surface direction. The clutch disc of No. 1 does not absorb the deviation between the center of rotation of the flywheel and the center of the clutch disc. Therefore, since the hub and the output shaft rotate in an eccentric state, there is a problem that an eccentric force is applied to the spline portion of the hub and the output shaft, and abnormal noise is generated from the spline portion.

In order to suppress the eccentric force applied to the spline portion of the hub and the output shaft, it has been devised to disperse the forcing force by sliding the clutch disc, but in this case, the transmission force of the clutch decreases. There is.

[0006]

In order to solve the above problems, in the clutch disc according to the first aspect of the present invention, a hub spline-connected to an output shaft and a hub that is rotatable relative to the hub by a predetermined angle. Drive plate,
In a clutch disc comprising a plurality of cushioning plates provided on the outer peripheral side of the drive plate, and friction plates provided on both sides of the cushioning plate, the cushioning plate has elasticity in the clutch disc surface direction and the friction plate is It is configured such that it can be moved relative to the hub in the direction of the clutch disk surface. In order to solve the above-mentioned problems, in the clutch disc according to claim 2 of the present invention, the cushioning plate is provided between a mounting portion of the cushioning plate and the drive plate and a mounting portion of the cushioning plate and the friction plate. Since the friction plate has elasticity in the direction of the clutch disc surface by having the bent portion continuous in the rotation direction, the friction plate can be moved relative to the hub in the clutch disc surface direction.

[0007]

According to the above construction, in the clutch disc according to claim 1 of the present invention, the cushioning plate has elasticity in the clutch disc surface direction, and the friction plate is movable relative to the hub in the clutch disc surface direction. is there. Therefore, if the center of rotation of the flywheel and the center of the clutch disc do not match, the clutch disc will try to rotate about a position deviated from the center of the clutch disc when the clutch is engaged, but the friction plate will move relative to the hub. The relative movement in the clutch disc surface direction allows the cushion plate to absorb the eccentric force applied to the spline portion of the hub and the output shaft. Further, since the flywheel and the friction plate do not move relative to each other, the transmission force of the clutch is not reduced.

In the clutch disc according to a second aspect of the present invention, the cushioning plate is arranged in the rotational direction between the cushioning plate, the mounting portion of the drive plate, and the mounting portion of the cushioning plate and the friction plate. By having the continuous bent portion, the friction plate has elasticity in the clutch disc surface direction, and the friction plate can move relative to the hub in the clutch disc surface direction. Therefore, if the center of rotation of the flywheel and the center of the clutch disc do not match, the clutch disc will try to rotate about a position deviated from the center of the clutch disc when the clutch is engaged, but the friction plate will move relative to the hub. The relative movement in the clutch disc surface direction allows the bent portion of the cushion plate to absorb the eccentric force applied to the spline portion of the hub and the output shaft.

[0009]

Embodiments of the present invention will now be described in detail with reference to the drawings. FIG. 1 shows a clutch disc according to an embodiment of the present invention. FIG. 2 is a sectional view of a clutch disc according to an embodiment of the present invention. FIG. 3 is an explanatory view of the operation of the clutch disc of the present invention.

First, the configuration will be described. A clutch disc 1 is spline-fitted to the output shaft so as to be axially movable in the axial direction. A hub 2 is provided at the center of the clutch disc 1, and a spline is formed on the inner peripheral portion of the hub 2. A plate portion 3 is integrally formed with the hub 2 on the outer peripheral portion of the hub 2. The drive plate 4 is provided on one side surface of the plate portion 3, and the sub-plate 5 is provided on the other side surface thereof. Reference numeral 6 is a rivet for fixing the drive plate 4 and the sub plate 5 together. Rivets 6
When the drive plate 4 and the sub plate 5 rotate relative to the hub 2 by a predetermined angle, the drive plate 4 and the sub plate 5 come into contact with the notches 5 of the plate portion 3 to restrict the relative rotation of the drive plate 4 and the sub plate 5 with respect to the hub 2. Drive plate 4
A spring 8 is provided between the sub plate 5 and the sub plate 5.
The spring 8 elastically engages the drive plate 4 and the sub plate 5 with the plate portion 3. A cushioning plate 9 is provided on the outer peripheral portion of the drive plate 4. The cushioning plate 9 is provided with a bent portion 9a along the rotation direction of the clutch disc 1, and the cushioning plate 9 has elasticity in the axial direction of the output shaft and the surface direction of the clutch disc 1. A friction plate 10 is provided on the outer peripheral portion of the bent portion 9a of the cushioning plate 9.

The operation of the present invention will be described below with reference to FIG. When the clutch is connected, the clutch disc 1 moves the output shaft 11 in the axial direction, and the friction plate 10 rotates integrally with the flywheel 12 and the pressure plate 13.
Although the rotary shaft 14 of the flywheel 12 and the output shaft 11 are provided coaxially, a deviation may occur due to an error, and FIG. 3 shows a case where the rotary shaft 14 and the output shaft 11 are misaligned. ing. FIG. 3A shows the state before the clutch is connected. Here, the rotating shaft 14 and the output shaft 11 are displaced by the distance W. FIG. 3B shows the state when the clutch is connected. At this time, the friction plate 10 of the clutch disc 1 is also in contact with the flywheel 12 while being displaced by the distance W. FIG. 3C shows a state in which the state of FIG. 3B is rotated by 180 degrees. Here, the friction plate 10 of the clutch disc 1 is moving relative to the hub 2 due to the deformation of the bent portion 9a of the cushioning plate 9, but the rotating shaft 14 and the output shaft 11 are
The difference between and has not changed. The friction plate 10 does not move relative to the flywheel 12 between the state of FIG. 3B and the state of FIG. 3C.

As described above, even when the rotary shaft 14 of the flywheel 12 and the output shaft 11 are displaced from each other, the bending portion 9a of the cushioning plate 9 is deformed, so that the friction plate 10 becomes a hub. By moving the clutch disc 1 relative to the surface direction with respect to 2, the eccentric force applied to the spline portion of the hub and the output shaft can be suppressed.
Further, since the friction plate 10 does not move relative to the flywheel 12, the transmission force of the clutch is not impaired.

[0013]

As described above, in the clutch disc according to claim 1 of the present invention, the cushioning plate has elasticity in the clutch disc surface direction, and the friction plate can move relative to the hub in the clutch disc surface direction. Is. Therefore, if the center of rotation of the flywheel and the center of the clutch disc do not match, the clutch disc will try to rotate about a position deviated from the center of the clutch disc when the clutch is engaged, but the friction plate will move relative to the hub. The relative movement in the clutch disc surface direction allows the cushion plate to absorb the eccentric force applied to the spline portion of the hub and the output shaft. Further, since the flywheel and the friction plate do not move relative to each other, the transmission force of the clutch is not reduced.

In the clutch disc according to the second aspect of the present invention, the cushioning plate is arranged in a rotational direction between a mounting portion of the cushioning plate and the drive plate and a mounting portion of the cushioning plate and the friction plate. By having the continuous bent portion, the friction plate has elasticity in the clutch disc surface direction, and the friction plate can move relative to the hub in the clutch disc surface direction. Therefore, if the center of rotation of the flywheel and the center of the clutch disc do not match, the clutch disc will try to rotate about a position deviated from the center of the clutch disc when the clutch is engaged, but the friction plate will move relative to the hub. The relative movement in the clutch disc surface direction allows the bent portion of the cushion plate to absorb the eccentric force applied to the spline portion of the hub and the output shaft. Therefore, there is an effect that the generation of abnormal noise can be prevented without reducing the transmission force of the clutch.

[Brief description of drawings]

FIG. 1 is a clutch disc of the present invention.

FIG. 2 is a sectional view of a clutch disc of the present invention.

FIG. 3 is an explanatory view of the operation of the clutch disc of the present invention.

[Explanation of symbols]

1 ... Clutch disc, 2 ... Hub, 3 ... Plate part, 4
... drive plate 5 ... sub plate, 6 ... rivet, 7 ... notch, 8 ... spring 9 ... cushioning plate, 9a ... bent part, 10 ... friction plate 11 ... output shaft, 12 ... flywheel, 13 ... pressure plate 14 ... Axis of rotation

Claims (2)

[Claims] 1. A hub spline-connected to an output shaft, a drive plate connected to the hub so as to be rotatable relative to the hub by a predetermined angle, a plurality of cushioning plates provided on the outer peripheral side of the drive plate, In a clutch disc provided with friction plates provided on both sides of the cushioning plate, the cushioning plate has elasticity in the clutch disc surface direction, and the friction plate is movable relative to the hub in the clutch disc surface direction. Clutch disc featuring 2. The clutching plate has a bending portion continuous in a rotational direction between a mounting portion of the cushioning plate and the drive plate and a mounting portion of the cushioning plate and the friction plate, whereby the clutch disc surface direction is improved. 2. The clutch disc according to claim 1, wherein the friction plate has relative elasticity and is movable relative to the hub in a clutch disc surface direction.