KR100246090B1 - Frictional clutch having wide angle damper - Google Patents

Abstract

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a friction clutch for automobiles. In particular, a plurality of leaf springs are installed radially in the clutch disk in the friction clutch disk to connect the clutch disk and the flywheel of the engine so that the engine power is transmitted to the clutch. The invention relates to a wide angle damper for a friction clutch configured to allow an automobile to start smoothly by allowing the leaf spring to absorb an impact.

The configuration of the present invention includes a friction clutch having a plurality of facings (23) fastened to the clutch disk (21) by a spline hub (24), a clutch disk (21), and a rivet (22) as a fastening mechanism; The projections 29a and 33a of each friction washer 29 and 33 are fixed to the through holes formed at the inner ends of the disc plate 34 and the sub plate 30, and the respective friction washers 29 ( Both ends of the leaf springs 25 are inserted into the washer holes 29b and 33b of the 33, respectively, so that the leaf springs 25 are fixed so as not to deviate in the radial direction, and the disks are provided on both sides of the leaf springs 25. The stopper pin 26 is installed to penetrate the plate 34 and the sub plate 30 to move in proportion to the elastic deformation of the leaf spring 25 when the spline hub 24 rotates. The damping angle of 26) is set so that the damping angle at the forward movement is larger than the damping angle at the reverse movement.

Description

Wide Angle Damper for Friction Clutch

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a friction clutch for automobiles. In particular, a plurality of leaf springs of friction clutch discs are installed radially in the clutch disc to connect the clutch disc and the flywheel of the engine so that the engine power is transmitted by clutching. A wide angle damper for a friction clutch configured to allow a vehicle to start smoothly by allowing the leaf spring to absorb an impact.

In general, a disc friction clutch is used in a manual transmission to transmit power of an automobile engine, and a torque converter, which is a kind of fluid clutch, is used in an automatic transmission.

In automobiles, the clutch is a very important unit that regulates power while positioning the engine power between the flywheel and the transmission when starting, stopping, or shifting gears. In addition, the other role of the clutch is to allow the vehicle to run smoothly by allowing slippage during power transmission, to smoothly start the vehicle, and to reduce various noises and vibrations generated in the power transmission system while driving. . On the other hand, the clutch acts as a shock absorber to the vehicle drive system, which protects the drive system by buffering the shock from the abnormal explosion of the engine or the shock from the wheel by the clutch slip action or the damper.

The disc friction clutch system used in the manual transmission of a vehicle is a power transmission device mounted between a flywheel work of a engine and a transmission and mounted in a constant casing, and includes a clutch disk, a clutch cover, and a release bearing. release bearings) and combinations thereof are called clutch systems.

In the conventional clutch system as described above, a connection shock occurs when the rotational power of the flywheel of the engine is transmitted to the clutch disk. This connection shock not only causes discomfort to the rider but also impairs the vehicle.

1 shows an exploded perspective view of the clutch system 10 according to the prior art, in which the clutch disc 11 is reduced in order to reduce the connection impact when the clutch is connected in the clutch system 10 according to the prior art. Many torsion springs 12 are provided in the circumferential direction.

The torsion spring 12 may have a single coil spring, or may be provided with two coil springs of different diameters.

In the case of overlapping as described above, two torsion springs 12 may be overlapped even when the clutch system 10 is compactly formed in a large or small vehicle.

The disc 11 is attached with a number of facings 13. There is a clutch cover 14 covering the clutch disc 11, and a release bearing 15 is shown which is used to clamp the clutch.

2 is a view showing the clutch disc 11 separately, wherein the torsion spring 12, which is a coil spring according to the prior art, has a circumferential direction of a plurality of attached facing 13 in the circumferential direction of the disc 11; Many are provided inward.

However, the damper composed of the coil spring-type torsion spring 12 according to the related art has a disadvantage that the damper angle range is not large because the damper possible angle is only up to the compression limit of the torsion spring 12.

In recent years, the performance of the clutch should also be excellent, but since the starting comfort and noise standards have been strengthened, and consumer preferences have been changed, such a torsion spring damper mechanism has a disadvantage.

In addition, the torsion spring-type damper mechanism as described above has a problem that the volume of the coil spring must be large and thus the weight is excessive.

In addition, there are many problems such as low productivity, low productivity, difficulty in manufacturing parts, easy standardization, and excessive noise due to contraction and relaxation of the coil spring.

The present invention has been made to solve the above problems of the prior art, and provides a wide angle damper mechanism of a clutch system that can provide a comfortable ride by increasing the damper angle so as not to feel a clutch connection shock to a rider. There is a purpose.

Another object of the present invention is to provide a wide angle damper mechanism of a clutch system that is light in weight and compact in weight due to the simplification of components.

Another object of the present invention is to provide a wide angle damper mechanism of a clutch system that can reduce surging and noise by the characteristics of the leaf spring, thereby improving the quietness of the vehicle.

1 is an exploded perspective view of a general clutch system.

2 shows a clutch disc with a torsion spring according to the prior art.

3 is a partial cutaway view of a clutch disk with a wide angle damper according to the present invention;

4 is an enlarged view of a wide angle damper according to the present invention.

5 is a view showing a coupled state of the wide angle damper mechanism.

6 is a perspective view showing the main portion of FIG. 5 showing a coupling state between the leaf spring and the friction washer.

* Explanation of symbols for main parts of the drawings

21: clutch disc 22: rivet

23: Facing 24: Spline Hub

25: leaf spring 26: stopper pin

27, 28: stopper pin 29: friction washer

30: subplate 31: upper portion

32: lower part 33: friction washer

In order to achieve the above object, the present invention provides a friction clutch having a splined hub and a clutch disk and a plurality of facings which are fastened to the clutch disk by rivets, which are fastening mechanisms; The projections of the friction washer are fastened to the through holes formed at the inner ends of the disc plate and the subplate, respectively, and both ends of the leaf springs are inserted into the washer holes of the friction washers so that the leaf springs do not deviate radially. The stopper pin is fixed to both sides of the leaf spring and penetrates through the disk plate and the sub plate and moves in proportion to the elastic deformation of the leaf spring when the spline hub is rotated, and the damping angle of the stopper pin is reversed. Provided is a wide angle damper mechanism for a matal clutch, wherein the damping angle at the time of advancing is set to be a larger angle than the damping angle of.

Hereinafter, an embodiment of the present invention will be described in detail with reference to the accompanying drawings.

3 is a partial cutaway view showing a clutch disk with a wide angle damper according to the present invention, and FIG. 4 is an enlarged view of the wide angle damper according to the present invention, and FIG. 5 is a coupled state of the wide angle damper mechanism. 6 is a perspective view illustrating a coupling state between the leaf spring and the friction washer as shown in FIG.

The present invention relates to a friction clutch having a plurality of facings (23) fastened to the clutch disc (21) by a spline hub (24), a clutch disc (21), and a rivet (22), which is a fastening mechanism; The projections 29a and 33a of each friction washer 29 and 33 are fixed to the through holes formed at the inner ends of the disc plate 34 and the sub plate 30, and the respective friction washers 29 ( Both ends of the leaf springs 25 having an I-shape are inserted into the washer holes 29b and 33b of the 33, respectively, so that the leaf springs 25 are fixed so as not to deviate in the radial direction, and the leaf springs 25 Stopper pins 26 are installed on both sides of the disk plate 34 and the subplate 30 to move in proportion to the elastic deformation of the plate spring 25 when the spline hub 24 rotates. The damping angle of the stopper pin 26 is set so that the damping angle at the forward movement is larger than the damping angle at the reverse movement.

At this time, in the embodiment of the present invention, although four leaf springs are illustrated as installed, the number of leaf springs can be increased or decreased as necessary.

In addition, the leaf spring 25 is preferably made of carbon steel, but may be made of other steel sheet as long as the strength is excellent.

The operation of the present invention configured as described above is as follows.

When the spline hub 24 is rotated, the leaf spring 25 is gradually bent, so that the stopper pin 26 located on both sides of the leaf spring 25 is the stopper pin position 27 at the forward or stopper at the reverse It moves to pin position 28.

At this time, the angle can be damped up to ± 30 degrees.

In FIG. 4, for example, a damping action is performed by the angle A when the vehicle moves forward and by the angle B when the vehicle moves backward.

5 is a view showing a state in which the leaf spring 25 is attached to the outside of the spline hub 24, the friction washer in the through hole formed in the inner end of the disc plate 34 coupled to the spline hub 24 The protrusion 29a of the 29 is inserted into the friction washer 29, and one end of the leaf spring 25 is inserted into the washer hole 29b drilled into the friction washer 29. I get caught.

In addition, a projection 33a of another friction washer 33 is inserted into and coupled to the through hole formed at the inner end of the sub plate 30 which is riveted to the disc plate 34, and the friction washer ( The other end of the leaf spring 25 is inserted and caught in the washer hole 33b of 33).

In the leaf spring 25 of the present invention assembled as described above, when the facing 23 of the clutch disc 21 comes into contact with the flywheel, the disc 21 starts to rotate together with the flywheel. The hub 24 is stationary and the stopper pin 26 pushes the leaf spring 25.

Accordingly, the spline shaft is bent by the plate spring 25 by elasticity and power is transmitted to the spline hub 24 so that the spline hub 24 rotates, and the spline shaft inserted into the spline hub 24 inner diameter is illustrated. Power is transmitted to the transmission.

The leaf spring 25 of the present invention is capable of damping both forward and backward, and can change the damper angles of the forward and backward according to the fixing position of the stopper pin 26.

That is, it is preferable to set the damper angle to be large because a high speed is required at the time of forward movement, and the damper angle is increased at a high speed.

In an embodiment of the present invention, the damping angle is set to allow up to ± 30 degrees.

As described above, the wide angle damper mechanism of the present invention is capable of dampers having a damper angle of approximately ± 30 when the damper angle is the maximum and the forward and backward advance, compared to the clutch having the coil spring damper mechanism according to the prior art, thereby improving the riding comfort of a vehicle recently required Has a significant contribution to

In addition, the present invention compared to the heavy-weight and bulky coil spring-type damper mechanism is light weight, simple to manufacture, and easy to assemble due to the use of a leaf spring improves productivity, and easy to standardize by simplifying parts The product can be made compact.

In addition, surging or noise is reduced due to the characteristics of the leaf spring, resulting in a significant improvement in quietness.

Claims (1)

A friction clutch having a plurality of facings (23) fastened to the clutch disk (21) by a spline hub (24), a clutch disk (21), and a rivet (22), which is a fastening mechanism; The projections 29a and 33a of each friction washer 29 and 33 are fixed to the through holes formed at the inner ends of the disc plate 34 and the sub plate 30, and the respective friction washers 29 ( Both end portions of the leaf springs 25 are inserted into the washer holes 29b and 33b of the 33, respectively, so that the leaf springs 25 are fixed so as not to deviate in a radial direction, and both side surfaces of the leaf springs 25 are disk plates. A stopper pin 26 is installed to penetrate the 34 and the sub plate 30 to move in proportion to the elastic deformation of the leaf spring 25 when the spline hub 24 rotates. The damping angle of) is set so that the damping angle at the time of forward movement is larger than the damping angle at the time of reverse movement, the wide angle damper mechanism for the friction clutch.

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