JPS598019Y2 - clutch release mechanism - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to an improvement of a clutch release mechanism.

Grease is sealed in the bearing of the clutch release mechanism during manufacture, but if the grease leaks out during use or due to temperature rise due to bearing operation, the grease may run out and the life of the bearing will be relatively short. There is.

On the other hand, a grease chamber is formed between the shift block to which the inner ring of the bearing is fixed and the front force bar, and a grease nipple communicating with the grease chamber is attached to the shift block, and by injecting grease as appropriate, the shift This allows the blocks to slide smoothly.

It is also conceivable that the grease injected into the grease chamber be configured to flow into the clutch release bearing, but the front force bar that slidably supports the shift block is exposed to the outside air, and the grease may adhere to it. When the dust mixed in with the dust gets mixed into the grease in the grease chamber due to the sliding of the shift block, and the grease mixed with this dust flows into the bearing, there is a problem that it actually accelerates the wear of the bearing.

The present invention is of this type, which can appropriately inject grease into the bearing from the outside, and also allows the grease injected into the bearing to flow into the grease chamber formed between the shift block and the front force bar. The present invention is intended to provide a bearing, and will be described below based on illustrated embodiments.

In the figure, 1 is a shift block disposed on the front force bar A so as to be slidable in the axial direction, which forms a grease chamber 11 between the front force bar A and communicates with the grease chamber. An oil hole 12 is provided.

Reference numeral 2 denotes a bearing inner ring whose inner peripheral surface is fixed to the shift block 1, and is provided with an oil hole 21 communicating with the oil hole 12.

3 is a collar 31 that contacts the clutch release lever A on the front side.
A bearing outer ring is provided with a bearing outer ring, and a rolling body 4 such as a ball is accommodated between the bearing outer ring and the inner ring.

6 is an annular cover attached to the rear end of the inner ring 2;
Its inner periphery is fixed to the inner ring 2 by press fitting or the like, and an annular seal 7 that contacts the inner periphery of the rear end of the outer ring 1 is attached to its outer periphery by baking or the like.

Reference numeral 8 denotes a grease nibble attached to the cover 6, which includes a main body 81 having a slotted hole 81a communicating with the inside of the bearing, a ball valve 82 disposed in the opening of the main body, and the ball valve 82.
It consists of a spring 83 that always presses upward in the figure.

Note that a flexible hose for greasing may be attached in place of the grease nipple, and the lubricating hole of the hose may be arranged outside the clutch housing.

The present invention is constructed as described above, and a greasing device such as a grease nipple 8 is attached to the cover 6 attached to the inner ring 2 of the bearing, so that grease can be injected into the bearing as appropriate. Therefore, wear of the bearing due to running out of grease can be prevented, and the life of the bearing can be increased.

Furthermore, the grease injected into the bearing is transferred to the oil hole 21 provided in the inner ring 2 and the oil hole 1 formed in the shift block 1.
2 and into the grease chamber 11, new grease is always injected into the bearing when injecting grease, and the grease in the grease chamber formed between the shift block and the front force bar does not flow into the bearing. The bearing does not wear out due to dust mixed into the grease in the grease chamber, and there is no need to provide a grease nipple for injecting grease into the grease chamber.

Note that the grease fittings such as the grease nipple 8 according to the present invention are attached to the cover 6 attached to the unrotatable inner ring 2 fixed to the shift block 1, so they do not rotate and are not connected to other parts. There will be no interference.

[Brief explanation of drawings]

The figure is a sectional view of the clutch release mechanism according to the present invention. 1...Shift block, 11...Grease chamber, 12...Oil hole, 2...Inner ring,
21...Oil hole, 3...Outer ring, 4...
...Rolling element, 6...Cover, 7...
Seal, 8... Grease nipple.

Claims (1)

[Scope of utility model registration request] a shift block axially slidably disposed on the front force bar; an inner ring fixed to the shift block;
In a clutch release mechanism comprising an outer ring having a flange on the front side that contacts a clutch release lever, and a transfer body disposed between the outer ring and the inner ring, a cover is attached to the rear end of the inner ring, and a cover is attached to the rear end of the inner ring. A lubrication tool such as a grease nipple is attached to the cover, and an oil hole is provided in the inner ring and the shift block to communicate with a grease chamber formed between the shift block and the front force bar. Clutch release mechanism.