JPS59496Y2 - Clutch failure prevention device - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a clutch disengagement prevention device for automobiles.

An object of the present invention is to ensure that the clutch is disengaged when changing gears of a transmission, and to smoothly perform a synchro shift operation.

Embodiments of the present invention will be described below with reference to the drawings.

In FIG. 1, reference numeral 1 denotes an input shaft of a transmission, and a clutch disc 2 is spline-fitted to the tip of the input shaft.

3 is the flywheel that the clutch disk 2 contacts;
4 is a pressure plate that presses the clutch disc 2 against the flywheel 3, and 5 is a bearing that rotatably supports the input shaft 1.

P represents the force that presses the clutch disk 2 against the flywheel 3, and f represents the set load that presses the input shaft 1 in a direction opposite to the pressing force P by the device of the present invention.

The device of the present invention includes a bearing 5 that supports the input shaft 1 described above.

This will be explained with reference to FIG.

As is well known, the bearing 5 is composed of an outer ring 8, an inner ring 10, and a roller 12 interposed therebetween.

Therefore, the outer ring 8 is fixed to the case 6 and the front cover 7 with a snap ring 9, and one end of the inner ring 10 is fixed to the input shaft 1 with a snap ring 11.

A plate I 13 is interposed between the other end of the inner ring 10 and the perpendicular surface 14 of the input shaft 1, and a thrust plate 1 is in sliding contact with the plate 13 and the side end of the roller 12.
5, a spring 16 is interposed between the spring 16 and the spring 16.

Generally, when performing a synchro shift operation with the clutch disengaged, a synchro torque T is generated on the input shaft 1, a thrust force F is generated on the input shaft 1,
The clutch disc 2 tends to be pressed against the flywheel 3, resulting in poor clutch disengagement.However, since the device of the present invention has the structure as described above, the spring 16
The pressing force is applied to the input shaft 1 via the plate 13.
A movement in the backward direction that offsets or overcomes the thrust force F is applied to the thrust force F.

Therefore, the clutch disc 2 reliably maintains the clutch disengaged state without contacting the flywheel 3, thereby preventing clutch disengagement failures as in the prior art.

In addition, the device of the present invention is equipped with a spring that presses the input shaft in the axial direction in the direction in which the clutch disc moves away from the flywheel, between the input shaft and the bearing that supports the input shaft in the case and front cover. It has the advantage of being easy to assemble, and maintenance and inspection can be easily performed simply by removing the front cover.

[Brief explanation of drawings]

FIG. 1 is a sectional view of the device of the present invention, and FIG. 2 is an enlarged partial sectional view thereof. 1... Input shaft, 2... Clutch disc, 3... Flywheel, 5...
...Bearing, 10...Inner ring, 11.
...Snap ring, 13...Plate, 15...Thrust plate, 16...
·spring.

Claims (1)

[Scope of utility model registration request] In the input shaft of a transmission in which the clutch disk is spline-fitted, the outer ring of the bearing that supports the input shaft is fixed to the case and the front cover, the inner ring is fixed to the input shaft, and the inner ring and the bearing are fixed to each other. This device prevents clutch disengagement by interposing a spring between the roller and the roller through a thrust plate that presses the input shaft in the axial direction where the clutch disc moves away from the flywheel.