JP2867208B2 - Clutch release bearing - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a clutch release bearing used for a vehicle such as an automobile.

[0002]

2. Description of the Related Art A conventional clutch release bearing of this type is shown in FIG. 3 (Japanese Utility Model Publication No. 51-44030). The clutch release bearing includes an outer ring 30 that is a fixed wheel, an inner ring 31 that is a rotating wheel, and a rolling element 32 disposed on the inner and outer rings. Is press-fitted and fixed.

[0003]

[SUMMARY OF THE INVENTION However, the conventional clutch release bearings, the cylindrical body 34 which wear the bearing of the diaphragm spring 33 at the same time the diaphragm spring 33 from <br/> frequent intermittent clutch contacts Also wear occurs. If this wear progresses to some extent, it is necessary to replace the worn portion. However, since the tubular body 34 is fixed to the inner ring 31 by press fitting, only the tubular body 34 cannot be replaced and repaired. The entire bearing must be replaced, resulting in a troublesome operation and a high cost.
Accordingly, an object of the present invention is to solve the above-mentioned technical problems and to provide a clutch release bearing that can easily and inexpensively replace and repair worn parts of the bearing.

[0004]

SUMMARY OF THE INVENTION In order to achieve the above object, the present invention comprises a fixed wheel, a rotating wheel, and a rolling element rotatably disposed between the two wheels. In a clutch release bearing that is brought into contact with a spring, a ring-shaped plate that covers a flange portion of the rotating wheel and contacts the diaphragm spring is attached to the rotating wheel, and the plate has a plurality of cross sections on the circumference of its periphery. A gate-shaped protrusion is provided in the axial direction, and the flange of the rotating wheel includes a pair of an axial passage groove of the protrusion and a fixing groove that is continuous with the passage groove and that fits and fixes the protrusion. At least the same number as the protruding portions are provided at opposing positions, and the protruding portions are fitted and fixed in the fixing grooves, so that the plate is detachably attached to the flange portion of the rotating wheel.

[0005]

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

FIG. 1 shows an embodiment of a clutch release bearing according to the present invention. This embodiment includes an outer ring 1 that is a fixed ring,
An inner ring 2 as a rotating wheel, and a rolling element 3 rotatably disposed between the inner and outer rings 2 and 1 are provided. A flange 4 extending radially outward is provided on the inner ring 2 on the side of the diaphragm spring 10. A plate 5, which is a plate-like ring having a predetermined hardness, is detachably attached to the side surface 4b of the flange 4, and is brought into contact with the diaphragm spring 10.

[0007] The plate 5 is integrally formed with a plurality of projecting portions 9 each having a gate-shaped cross section and extending in the axial direction at a plurality of circumferential positions on the outer peripheral edge. That is, the protruding portion 9 includes a first flange 9a extending radially outward from the outer peripheral edge of the plate 5, a rib 9b extending axially from the first flange 9a, and a radially inward extending from the rib 9b. It is formed from the second flange 9c.

On the outer peripheral portion of the flange 4 of the inner ring 2, the second flange 9 c of the projecting portion 9 of the plate 5 is attached to the outer surface 4 of the flange 4.
a pair of a passage groove 6 that can pass from the inner groove 4a to the inner side surface 4b and a fixing groove 7 that is continuous with the passage groove 6 and has a depth such that the second flange 9c does not come off in the axial direction. And the second flange 9c and the passage groove 6 are formed so as to face each other. The axial width of the protrusion 9, that is, the distance between the first flange 9 a and the second flange 9 c is provided slightly smaller than the axial thickness of the flange 4 in which the fixing groove 7 is formed. As a result, when the plate 5 is attached to the flange 4 as described later, the protrusion 9
Will be fixed. Also, the first flange 9a
, That is, the position of the rib 9b is formed to be smaller than the flange height so as to be accommodated in the fixing groove 7 but not turned toward the non-fixing groove 7 side. The number of pairs of the passage grooves 6 and the fixing grooves 7 may be larger than the number of the protrusions 9 as a spare.

The fixing groove 7 is preferably provided continuously with the passage groove 6 in the direction of rotation of the engine of the vehicle. In this case, even if the plate 5 may be creeped by the vibration of the flange 4 in the engine rotation direction during use of the bearing, the ribs of the protrusion 9 may be provided on the circumferential side surface 8 of the fixing groove 7. 9b is brought into contact with the side surface, so that creep of the plate 5 can be completely prevented.

Next, a method of attaching the plate 5 to the flange 4 will be described. First. After aligning the position of the projecting portion 9 of the plate 5 with the position of the passage groove 6 of the flange 4, the second flange 9c of the projecting portion 9 is passed through the passage groove 6 in the axial direction,
It is located on the inner surface 4 b side of the flange 4. Next, the plate 5 is rotated toward the fixing groove 7. Then, the axial width of the protrusion 9, that is, the distance between the first flange 9 a and the second flange 9 c is slightly smaller than the axial thickness of the flange 4 in which the fixing groove 7 is formed. The first flange 9a and the second flange 9c are elastically fixed to the flange 4 at the position of the fixing groove 7 in a press-contact state. If the plate 5 is to be removed, the reverse of the above operation may be performed.

Although the embodiment has been described with reference to the inner ring rotating clutch release bearing, the present invention is also applicable to an outer ring rotating clutch release bearing.
Of course, in this case, the pair of the passing groove and the fixing groove formed in the flange portion is formed on the inner peripheral portion of the flange portion, and the projecting portion of the plate is
Naturally, the plate is formed on the inner peripheral portion of the plate.

[0012]

As is apparent from the above description, in the clutch release bearing of the present invention, since the plate that comes into contact with the diaphragm spring is detachably mounted on the rotating wheel, when the plate is worn, only the plate is removed and replaced and repaired. Work is simple and inexpensive.

[Brief description of the drawings]

FIG. 1 is a sectional view of a clutch release bearing according to an embodiment of the present invention.

2A is a perspective view of the plate in FIG. 1, and FIG.
FIG. 4 is a partial perspective view of the inner ring of FIG.

FIG. 3 is a sectional view of a conventional clutch release bearing.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Outer ring 2 Inner ring 3 Rolling element 4 Flange part 5 Plate 6 Passing groove 7 Fixed groove 9 Projection

──────────────────────────────────────────────────続 き Continued on front page (58) Field surveyed (Int. Cl. ⁶ , DB name) F16D 23/00

Claims (1)

(57) [Claims] 1. A clutch release bearing comprising a fixed wheel, a rotating wheel, and a rolling element rotatably disposed between the two wheels, wherein a flange of the rotating wheel is brought into contact with a diaphragm spring. A ring-shaped plate that covers the flange portion of the rotating wheel and contacts the diaphragm spring is attached, and the plate is provided with a plurality of projecting portions having a gate-shaped cross section on the circumference of the periphery thereof in the axial direction. In the collar,
A pair of an axial passage groove of the projecting portion and a fixing groove that is continuous with the passage groove and that fits and fixes the projecting portion is provided at at least the same number of the projecting portions as opposed to each other, and the projecting portion is formed of the fixing groove. A clutch release bearing, wherein the plate is removably attached to the flange of the rotating wheel by being fitted and fixed to the clutch release bearing.