JPS62141320A - Diaphragm spring type clutch cover assembly - Google Patents

Abstract

PURPOSE:To prevent the generation of judder and abnormal sound and to smooth clutch operation by fitting and fixing a vibration damping member formed by non-metallic materials in a slit between fingers adjacent in the peripheral direction of a clutch cover. CONSTITUTION:A fly wheel is fixed concentric with a clutch cover 12, a finger 23 is formed integral with the inner peripheral portion of a diaphragm spring 16 by slits 22, and the outer peripheral portion of the finger 23 formed integral with an annular portion on the outer peripheral side of the diaphragm spring 16. A damping member 25 made of non-metallic materials excellent in vibration damping ability such as rubber, synthetic resin and the like is fitted in the radial intermediate part of each slit 22. Accordingly, the vibrations of the respective portions related to the finger 23 can be prevented and restrained, so that the generation of judder and abnormal sound can be prevented to smooth the connecting/disconnecting operation of a clutch.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a diamond slam spring type clutch cover assembly used in friction clutches for automobiles and the like.

(Prior Art) Generally, in a diaphragm spring type clutch cover assembly in which a diaphragm spring that biases a Zolessi V plate is arranged concentrically within a dish-shaped clutch cover body having a large diameter hole in the center, the inner part of the diaphragm spring is The peripheral portion integrally has a large number of fingers extending in a radial direction toward the inner peripheral edge.

That is, in the configuration of the diaphragm spring described above, the fingers are formed in the shape of a relatively long band extending in the radial direction. Further, the outer circumferential portion of the finger is integrally formed with the outer circumferential annular portion of the diaphragm spring, but the inner circumferential portion is separated from the free end.

(Problems to be Solved by the Invention) In the above conventional configuration, when the clutch cover assembly is set, the carrot shaft vibration is transmitted to the die 11 noram spring through the clutch cover body, causing the fingers of the diaphragm spring to resonate. There is a problem with this.

When the finger of the diaphragm spring resonates 1, the diaphragm spring gives a force of 11 to the prefuge 1.
1 Brake I・ vibrates, and 1-Luke transmission is performed evenly and smoothly when the clutch tension gauge is applied.

Historically, this vibration of the pressure plate has caused judder and abnormal noise.

The present invention is intended to solve the above problems.

(Means for solving the problem) Inside the curved clutch cover body with a large diameter hole in the center,
A diaphragm spring clutch consisting of a metal plate that biases a pressure plate is arranged concentrically; a large number of fingers are integrally formed on the inner periphery of the diaphragm spring and extend radially in the direction of the inner periphery. In the cover assembly: This is a die 17 flamm spring type ramp cover assembly characterized in that a vibration damping capacity made of a non-metallic material is fitted and fixed in the slit between the fingers adjacent to each other in the circumferential direction of the cover.

(Function) The vibration damping member installed between the fingers attenuates the first class force of the fin force C, and the vibration is transmitted to the diaphragm spring through the clutch cover body.
Even in this case, the Daioni 7 Nonom Spring will no longer swing.

In addition to this, the clutch 1-9 torque transmission is uniformly and smoothly (2 clutches are turned).

Furthermore, the noises such as JX-DA and VL will no longer be generated.

(Embodiment) In FIG. 1, the outer circumference of a curved clap cover main body 12 having a large diameter hole in the center is fixed concentrically to a flywheel 11 driven by an engine (not shown). A concentric clutch disc 13 is disposed in a space formed by the flywheel 11, clutch cover main body 12, etc.
A new output shaft is connected. Also, clutch disc 13
A pre-flash plate 14b for pressing the flywheel 11 toward the flywheel 11 is arranged concentrically within the space. The pressure plate 14 is provided with a J projection 15 on the back side, and the outer peripheral part of the annular die 17 flamm spring 16 is in contact with the projection 15. Wire ring 17.1
8 are in contact.

Wire ring 17.18 is die 1 flam spring 1
6, and both are supported by tabs 19 that are integrally formed on the clutch cover main body 12. On the inner circumference of the diaphragm spring 16,
A release bearing 20 faces the breath plate 1-14 from the opposite side. The release bearing 20 is movably installed around an output shaft (not shown), and is connected to a clutch pedal via a 4T link mechanism (not shown).

As shown in Figure 2, the die 17 flamm spring 16μ
Radial sleeve 1 extending from the inner edge to the outer edge
22, and only the portion on the outer peripheral side of the slit 22 is continuous in an annular shape. The radially outer ends of the sulins 1 to 22 are opened in the circumferential direction of the cover to form oval holes 24. The tabs 19 and 1 each extend through the oval holes 24 toward the pressure plate 1-14 as shown in FIG. The pressure-1-14 side end of the tab 19 is curved toward the outer circumference of the cover, thereby holding the wire rings 17, 18 in a position concentric with the clutch cover body 12.

As shown in FIG. 2, the diaphragm spring 16 has a number of fingers 23 extending radially toward the inner circumferential edge of the diaphragm spring 16 through the slots 22.
・It has formed fins on its body. That is, the fingers 23 are formed in a relatively good band shape extending in the radial direction. The outer circumferential portion of the finger 23 is integrally formed with the outer annular portion of the diaphragm spring 16, but the inner circumferential portion is a free end and has a 4T diameter so that the release bearing 20 can come into contact with it. There is.

A damping member 25 is fitted into the radially intermediate portion of each slit 22 (or some of the slits 22).

The damping part 4425 is made of a non-metallic material with excellent vibration damping ability, such as rubber or synthetic resin, and integrally includes a shaft part 30 with a circular cross section and outward flanges 31 at both ends of the shaft part 30. 22 into the sleeve 1 in the region of the shank 30, and both flanges 31 are seated on the surface of the fingers 23.

Further, one side edge of the fin car 230 is provided with an arcuate notch 32 (J) into which the shaft portion 330 fits.

As shown by arrow A in FIG.
radially outward to elastically shape the shaft 30 and move it to the notch 32 part.
, can be done.

Note that if one of the seven flange 31a is made to have a relatively small diameter and its end face 35 is covered in a soft conical or partially spherical shape as shown in FIG.
By pushing the damping member 25 into the notch 32 with the flange 31a at the top, as indicated by arrow [3, the damping member 2b can be installed in a predetermined position.

Next, the operation will be explained. In FIG. 1, when the clutch is connected, the die 17 flamm spring 16 uses the wire A7-ring 17. Fly 11\Eel 11
The clutch disc 13 is held between them. When the clutch pedal (not shown) is depressed to disengage the clutch, the release bearing 20 releases the die 17 and the noram spring 16.
Push the inner periphery of the holder toward the flywheel 11 (position indicated by the imaginary line in Fig. 1). As a result, the diaphragm spring 16 releases the pressure (=Jl) force applied to the pressure brakes 1 to 14, and the clutch disc 13 is released from the clutch disk 13 by the flywheel 11 and the pressure 114. As you gradually release the clutch pedal, the die Al flamm spring 1
6 presses the breather V plays 1 to 14, and the clutch is connected again.

In the operation described in -, the shaft vibration of the carrot is transmitted to the diaphragm spring 16 through the flywheel 11 and the clutch cover body 12. However, in this case, since the vibration of the finger 23 is damped by the damping member 25, the vibration of the finger 23 is prevented or reduced.

Therefore, each part connected to the die A/plum spring 16 (
For example, the vibration of the brake lever 1-14, the clutch cover 12, the release bearing 20, etc.) is suppressed, and the torque transmission during clutch engagement is uniformly and smoothly performed. - and abnormal noises will no longer occur.

(Effects of the Invention) As described above, according to the present invention, the damping member 25 attached to the finger 23 can prevent or suppress the vibration of the die 17 noram spring 16 and the parts connected thereto, thereby preventing the occurrence of shudder or abnormal noise. In addition to preventing this, the clutch connection/disconnection operation can be made smoother.

[Brief explanation of drawings]

FIG. 1 is a longitudinal sectional view of a die 17 flam clutch cover assembly according to the present invention, FIG. 2 is a partial view of the If arrow mark, and FIG.
The figure is a partial cross-sectional view showing another embodiment in an exploded state. 1
2...Clutch cover body, 14...Pressure brake 1-116...Diaphragm spring, 22.
...Slib l-123...Finger, 2b...Dampening member Patent applicant Neichikin Seisakusho Co., Ltd. -10 -

Claims (1)

[Claims] Inside the dish-shaped clutch cover body with a large diameter hole in the center,
A diaphragm spring type clutch cover assembly in which a diaphragm spring made of a metal plate that biases a pressure plate is arranged concentrically; a large number of fingers extending radially toward the inner periphery are integrally formed on the inner periphery of the diaphragm spring. A diaphragm spring type clutch cover assembly, characterized in that a vibration damping member made of a non-metallic material is fitted and fixed in the slit between the fingers adjacent to each other in the circumferential direction of the cover.