JPH0545854Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Purpose of the Invention] (Field of Industrial Application) This invention relates to a clutch release device for controlling a clutch used in a transmission system of an automobile.

(Prior Art) The clutch of an automobile needs to control transmission torque or open/close at the time of starting or changing gears, and is provided with a clutch operating member, which communicates with a clutch spring via a clutch release device. Since the clutch spring rotates together with the clutch and the clutch operating member is installed on the vehicle body side, the clutch release device uses a release bearing engaged with the clutch release fork to accommodate relative rotation.

To engage the clutch release fork and the release bearing, a method is used in which the clutch release fork is inserted into a locking groove formed in the plate on the fixed race of the release bearing, but a gap is created and the release bearing rattles. There was a drawback that this occurred. In order to prevent this rattling, there are some devices that have elastic engagement using a spring, but this requires the two to be assembled in advance and then assembled into the clutch case, which makes assembly difficult and reduces productivity. It was hot.

(Problems to be solved by the invention) As described above, in the conventional clutch release device, it is difficult to engage the clutch release fork and the release bearing, and there is a lot of rattling, and there is no way to prevent rattling. When elastically engaged, there is a problem in that the ease of assembling the device is reduced. The purpose of this invention is to solve this problem and provide a clutch release device that is free from rattling and is easy to assemble.

[Structure of the idea]

(Means for Solving the Problems) In order to achieve the above object, the clutch release device of this invention engages the fixed side race of the release bearing with the clutch release fork, and also engages the rotating side race with the diaphragm spring for pressing the clutch. In a clutch release device in which the pressing force of a diaphragm spring is controlled by a clutch operating member connected to a clutch release fork, a plate that is in contact with the front side of the fork is fixed to the fixed race tail end of the release bearing. The base end of a pair of springs is fixed between this plate and the fixed race tail end, and this spring is provided in a plate shape and extends rearward beyond the outside of the plate. A V-shaped locking protrusion that bends inward is formed, and a locking groove is formed on the rear edge of the outer surface of the clutch release fork, and the clutch release fork is sandwiched between a pair of springs. The front side of the clutch release fork is brought into contact with the rear surface of the plate, and the locking protrusion of the spring is elastically installed in the locking groove in surface contact, thereby engaging the clutch release fork and the release bearing. .

(Operation) With the above structure, in the clutch release device of this invention, there is no play between the clutch release fork and the release bearing due to the elastic engagement by the spring, and the operation is stable. Also, since the spring is fixed to the fixed side race and plate of the release bearing, in this state, the release bearing, plate and spring are assembled into the clutch case.
After that, the clutch release fork is pushed between the pair of springs, and the locking protrusion of the spring is engaged in the locking groove of the fork with one touch. Therefore, the clutch release device can be easily assembled into the clutch case, and the workability of assembling the clutch release device is improved.

(Example) Hereinafter, the drawings showing the example of this invention will be explained.

1 is a longitudinal sectional side view taken along the line A-A in FIG. 2 of the release bearing, FIG. 2 is a rear view thereof, and FIG. 3 is a plan view thereof.

Reference numeral 1 indicates a release bearing hub, which is slidably held in the clutch housing. A plate 2 is fixed to the tail end of the release bearing hub 1, and an outer race 3a of the release bearing 3 is fixed to the plate 2. The inner race 3b floats, and the pressure plate 4 fixed to the front end faces the rear surface of the central portion of the clutch pressing diaphragm spring 5.

The plate 2 and the outer race 3a are integrally held by a cover plate 6. At this time, at the same time, the base end of the spring 7 for engaging the fork is clamped and fixed between the outer race 3a and the plate 2. A pair of springs are arranged diametrically opposed to each other. Further, this spring is configured in a plate shape, extends rearward beyond the outside of the plate 2, and has a V-shaped locking protrusion 8 bent inward at the tail end.
is formed.

The clutch release fork 9 moves back and forth in conjunction with the clutch operating member, and its front surface contacts the rear surface of the plate 2 to push the release bearing 3. A locking groove 10 in which the locking protrusion 8 of the spring 7 engages is formed at the rear edge of the outer surface. This engagement groove 10 is
As shown in FIG. 3, the clutch release fork 9 is configured to be slightly longer than the width of the spring 7 in the longitudinal direction. When the locking groove 10 and the locking protrusion 8 are engaged in surface contact, the clutch release fork 9 and the plate 2 come into elastic contact without any gap and are integrated. When assembling both, place the clutch release fork 9 between the pair of springs 7
All you have to do is push it in from the right to the left as shown in the diagram. When disassembling it, it can be easily removed by pulling forcefully in the opposite direction.

In this clutch release device, a spring 7 clamped and fixed between the outer race 3a of the release bearing 3 and the plate 2 presses the front side of the clutch release fork 9 against the plate 2, and the clutch release fork 9 is elastically pressed against the plate 2. engage. Therefore, the clutch release fork 9 can be assembled without rattling.

Moreover, since the spring 7 is formed into a plate shape, the locking protrusion 8 of the spring 7 is connected to the locking groove 10.
It is installed with surface contact. For this reason, plate 2
The bonding strength between the clutch release fork 9 and the clutch release fork 9 can be improved.

In addition, in this clutch release device, a spring 7 is attached to the outer race 3a of the release bearing 3, the release bearing hub 1, and the plate 2.
are fixed in advance, and in this state these 3,
1 and 2 into the clutch cover, the clutch release fork 9 is engaged with the plate 2 by the spring 7, so that the clutch release fork 9 can be easily assembled into the clutch cover, and as a result, the ease of assembling the clutch release device is improved. can be improved.

Furthermore, since the length of the locking groove 10 of the clutch release fork 9 is formed to be slightly longer than the width of the spring 7, when assembling the clutch release device, the length of the locking groove 10 of the clutch release fork 9 (as shown in FIG. Positioning in the left-right direction can be performed by engagement between the spring 7 and the locking groove 10. Therefore, positioning of the clutch release fork 9 becomes easy, and the ease of assembling the device can be further improved.

[Effect of idea]

As described above, the clutch release device according to the invention includes a plate-shaped spring for engaging the fork fixed to the release bearing via a plate, and a locking groove is provided at the rear of the clutch release fork. By snapping the locking protrusion of the sprink into the locking groove with surface contact, the clutch release fork and release bearing can be engaged with one touch, improving assembly workability and making it suitable for use as a device. It has the effect of improving the functions of

[Brief explanation of the drawing]

FIG. 1 is a longitudinal sectional side view taken along line A--A in FIG. 2 of a release bearing showing an embodiment of this invention, FIG. 2 is a rear view showing the same part longitudinally, and FIG. 3 is a plan view thereof. 1... Release bearing hub, 2... Plate, 3... Release bearing, 3a... Outer race (fixed side race), 3b... Inner race (rotating side race), 5... Diaphragm spring, 7... Spring , 8...Latching protrusion, 9
...Clutch release fork, 10...Latching groove.

Claims (1)

[Scope of utility model registration request] A fixed side race of the release bearing is engaged with the clutch release fork, and a rotating side race is attached to the clutch pressing diaphragm spring, so that the pressing force of the diaphragm spring is controlled by a clutch operating member linked to the clutch release fork. In the clutch release device, a plate is fixed to the fixed side race tail end of the release bearing and the front side of the fork contacts, and the base ends of a pair of springs are fixed between the plate and the fixed side race tail end, This spring is provided in a plate shape, extends rearward beyond the outside of the plate, and has a V-shaped locking protrusion that bends inward at the tail end of the spring. A locking groove is formed on the rear edge of the outer surface, and the clutch release fork is sandwiched between a pair of springs, and the front side of the clutch release fork is brought into contact with the rear surface of the plate, and the locking protrusion of the spring is brought into surface contact within the locking groove. A clutch release device characterized in that a clutch release fork and a release bearing are engaged with each other by being resiliently installed.