JPH089462Y2 - Vehicle clutch device - Google Patents

Description

[Detailed Description of the Invention] (a) Field of Industrial Application The present invention relates to an improvement of a vehicle clutch device.
The present invention relates to a clutch device for vehicles such as passenger cars, lorries, and industrial vehicles.

(B) Conventional technology Conventionally, when the vehicle is operated in a forward leaning posture, the release bearing may move forward due to gravity and may come into contact with the operating part of the clutch to generate abnormal noise. It was pulled backwards to avoid contact between the release hub and the working part of the clutch.

(C) Problems to be Solved by the Invention In the clutch device in the known vehicle described above, contact between the release hub and the operating portion of the clutch can be avoided, but the number of springs and other parts required therefor increases,
Moreover, the stepping force of the clutch pedal is increased against the tension of the spring, which makes the driving operation inconvenient.

In addition, there is also one that does not use a spring and has a locking step part that fits the tip of the release fork from the rear on the rear end side part of the release hub. When the lever is tilted forward and fitted into the release hub, the distance between the rear end of the release hub and the center of rotation of the release fork becomes large, so that the release hub becomes long and the weight of parts becomes heavy.

(D) Means for Solving the Problems In the present invention, a partition wall of the main clutch housing is provided with a boss in the front-rear direction, and a release hub is slidably fitted and inserted into this boss. The problem was solved by providing a locking groove into which the tip of the release fork fits from the rear and a cutout portion into which the tip of the release fork is fitted when the release fork is tilted forward on the side of the boss. .

(E) Action When assembling the clutch release-related parts, first place the release forks inside the main clutch housing, then insert and release the release shafts into the left and right holes opened in the main clutch housing and the holes of the release forks, and then the main clutch housing. Rotatably fixed to.

In this state, rotate the release fork and tilt it far forward, and fit it into the notch on the side of the boss.The release hub with the release bearing press-fitted from the front to the boss provided on the partition wall of the main clutch housing. The release fork is loosely fitted from the front, and when the head of the release fork is engaged with the L-shaped locking groove in a side view, the release fork is rotated and raised to be substantially vertical. In this state, the tip of the release fork is loosely fitted in the locking groove of the release hub. The main shaft fitted to the clutch disc penetrates the shaft core, and the main clutch housing and the engine are screwed together to complete the assembly of the main clutch.

When the clutch pedal is depressed, the release fork rotates forward, the release hub engaged with the release fork is moved forward, and the release bearing press-fitted at the tip of the release hub presses the diaphragm spring and the clutch is turned off.

When the clutch pedal is released, the release fork rotates almost vertically and engages with the locking groove at the rear end of the release hub, so the release hub is moved backward, and the release bearing and diaphragm spring are separated and the clutch is released.・ It becomes in state.

(F) Embodiment An embodiment of the present invention will be described with reference to the drawings. A clutch 4 is screwed to a flywheel 2 at the rear end of the engine 1 by a bolt 3 to rotate together with the engine 1. At the rear end of the diaphragm spring 5 at the rear end of the clutch 4, the release bearing 6 has a slight play with the release hub 7 having a slight play.
It is press-fitted and installed in.

The release hub 7 is a partition wall 9 of the main clutch housing 8.
It is slidably fitted and supported by a boss 10 provided in the front and rear direction. Release forks on both sides of the rear end of the release hub 7.
L-shaped locking groove 13 in side view so that the tip of 11 fits
have. The main shaft 15 fitted to the clutch disc 14 passes through the shaft core.

The release fork 11 is fixed to the release shaft 16 with a pin 17, and the pin 17 is fixed with a split pin 19 via a washer 18.

The rear end side portion of the boss 10 has a notch portion 20 with which the front end portion fits when the release fork 11 is tilted forward.

When assembling the clutch release-related parts in the above-mentioned tractor, first the release fork 11 is placed in the main clutch housing 8, and the release shaft 16 is fitted into the left and right holes opened in the main clutch housing 8 and the holes of the release fork 11. Then, the release fork 11 is fixed to the release shaft 16 with a pin and fixed to the main clutch housing 8 so as to be rotatable.

In this state, the release fork 11 is turned to tilt it largely forward, and the tip of the release fork 11 is provided on the side of the boss 10.
The release hub 7 fitted to the 20, 20 and the release bearing 6 press-fitted from the front is loosely fitted from the front to the boss portion 10 provided on the partition wall 9 of the main clutch housing 8, and the head of the release fork 11 is engaged with the locking groove. Release fork when engaged with 13
Rotate 11 to raise it and make it almost vertical. In this state, the tip of the release fork 11 is loosely fitted in the locking groove 13 of the release hub 7. The main shaft 15 fitted to the clutch disc penetrates through the shaft core, and the main clutch housing 8
The main clutch assembly is completed by screwing the engine and.

When the clutch pedal is depressed, the release fork 11 rotates forward, and the release hub 7 engaged with the release fork 11 is moved forward to release the release bearing 6 press-fitted at its tip.
Pushes the diaphragm spring 5 and the clutch is turned off. When the clutch pedal is released, the release fork 11 pivots almost vertically, and the tip end of the release fork 11 engages with the locking groove at the rear end of the release hub 7. Therefore, the release hub 7 is moved rearward, and the release bearing 6 and the diaphragm are moved. The abutment portion of the spring 5 separates and the clutch is put in the state.

(G) Effect of the Invention As described above, the present invention has a notch 20 at the rear end side of the boss 10 provided in the front-rear direction on the partition wall 9 of the main clutch housing 8.
Since the release fork 11 can be tilted forward by providing the release fork 11, even if the release hub 7 is moved from the front while the release fork 11 is assembled to the main clutch housing 8 when the release hub 7 is assembled, the engagement of the rear end can be prevented. Can be assembled without interfering with the stop groove.

Further, since the boss rear end position and the center position of the release shaft 16 can be shortened by the depth dimension of the notch in the front-rear direction, the release hub 7 can be made smaller and lighter.

Further, when the release fork 11 is assembled in a predetermined position, the tip of the release fork 11 is inserted into the groove of the release hub 7, so that the release fork 11 and the release hub 7 act integrally on the front and rear, and when the vehicle is in the forward leaning posture. Also, the release hub 7 does not move due to gravity, and the release bearing 6 and the diaphragm spring 6 do not come into contact with each other to generate an abnormal noise.

[Brief description of drawings]

FIG. 1 is a sectional view of a vehicle engine and a main clutch. FIG. 2 is a detailed view of a notch portion of the present invention, and FIG. 3 is a front view thereof. In the figure, 1 is an engine, 4 is a clutch, 5 is a diaphragm spring, 6 is a release bearing, 7 is a release hub, 8 is a main clutch housing, 9 is a partition wall, 10 is a boss, 11 is a release fork, 12 is a two-sided part, 13 Is a locking step, 15 is a main shaft,
20 indicates a notch.

Claims (1)

[Scope of utility model registration request] 1. A partition wall 9 of a main clutch housing 8 is provided with a boss 10 in the front-rear direction, a release hub 7 is slidably fitted into the boss 10, and a release fork 11 is provided at a rear end side portion of the release hub 7. Is provided with a locking groove 13 into which the front end of the boss 10 is fitted from the rear, and a notch 20 into which the front end of the boss 10 is fitted when the release fork 11 is tilted forward. Vehicle clutch device.