JP2003278795A - Self-aligning clutch release bearing - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a structurally simple, lightweight, and easy-to-assemble self-aligning clutch release bearing providing a large retaining force with the small number of part items. <P>SOLUTION: A shoulder part 15 and a projecting part (locking part) 16 with a slope 16a and a stepped part 16b are provided near each transverse side end of an anvil 14 formed radially in axial symmetry. A clamping member (spring member) 3' is pressed in from a radial direction and locked at the stepped part, the clamping member comprising mounting parts 3a to be locked to the locking parts, two bent ends 3b extending in the direction of its inside diameter so as to be able to energize either an inner ring 4 or an outer ring 5 toward a resin sleeve 1, connections 3c for connecting the mounting parts to the bent ends, and an end portion 3d interconnecting the two bent ends. Further, the clamping member is provided with an extension 17 extending axially from the mounting part to the side opposite the connection, and also with an overhanging part 18 extending axially from the extension. The tip of a release fork 55 is disposed between the overhanging part and the anvil. <P>COPYRIGHT: (C)2004,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to improvement of a self-aligning clutch release bearing.

[0002]

2. Description of the Related Art As shown in FIG. 6, a self-aligning clutch release bearing includes a release hub 53 which is slidable in an axial direction on an outer periphery 52a of a retainer 52 protruding from a transmission device 51, and an outer periphery of the release hub. It is composed of a release bearing 54 provided at the end. The release hub 53 is rotated by a release fork 55 in the axial direction, and is rotated by a diaphragm spring 56. An inner ring or an outer ring of the release bearing 54 (an outer ring 54a in FIG. 6).
And the clutch is connected and disconnected. Release hub 5
3 and the rotating diaphragm spring 56 are in contact with each other via the release bearing 54, so that the rotation of the diaphragm spring is prevented from being transmitted to the release hub.
Reference numeral 57 is a pressure plate, 58 is a diaphragm clutch cover, 59 is a flywheel, 60 is a clutch disc (disc-shaped friction plate), 61 is a crankshaft, and 62 is a main drive shaft. By the way, in such a clutch release device, the center line of rotation of the release bearing 54 and the diaphragm spring 56.
It is difficult to accurately assemble and match the rotation center line of the.

Therefore, for example, in Japanese Patent Laid-Open No. 8-184329, as shown in FIG. 7, one end 73a of the cover 73 is swaged at the edge of the disk portion 72a of the hub iron core 72.
In addition, the end portion of the outer ring 75 of the release bearing is brought into contact with the collar portion 11 and the other end is provided with the other end portion 73 of the cover 73 via the wave spring 76.
By assembling so as to sandwich the outer ring between the resin sleeve 71, the hub iron core 72, and the release bearing 1
0 is assembled as one. That is, the cover 73 and the wave spring 76 constitute a sandwiching member that sandwiches one inner ring or one outer ring so as to abut on the resin sleeve so as to be able to move in the radial direction by a small amount. Since the minute gap 21 is provided between the outer ring 75 and the cover 73 and the outer ring is only urged in the axial direction by the wave spring 76, it can be moved by the minute gap in the radial direction. On the other hand, the inner ring 74 of the release bearing 10 projects in the axial direction through the balls 6 and comes into contact with the diaphragm spring 56. Therefore, even if the diaphragm spring and the rotation center line of the release bearing are eccentric, the outer ring 75 of the release bearing 10 moves in the radial direction, and the diaphragm spring 56
The center of rotation of the release bearing and the center of rotation of the release bearing are automatically aligned, and so-called self-alignment is performed.

Further, in FIG. 7, a fork return guide portion 78 is provided in which the outer peripheral end of the disc portion 72a is extended in the bending axial direction and a tongue portion 77 which is bent inward is provided. The tip of a release fork 55 for axially moving the release hub 53 back and forth (left and right as viewed in FIGS. 6 and 12) is disposed in the fork return guide portion 78. By moving the release fork 55 to the left and bringing the tip of the release fork into contact with the hub iron core 72,
The release bearing is moved to the left side, or the release fork 55 is moved to the right side to be brought into contact with the tongue portion 77 to move the release hub in the right direction.

In Japanese Patent Laid-Open No. 9-177828, the wave spring, which is the holding member, 76 and the cover 73 are replaced with a leaf spring, and two locking portions are provided on the resin sleeve side in axial symmetry. One end of each of the two leaf springs is engaged with the engaging portion, and the other end of each of the leaf springs is connected to the bearing outer ring 7
The outer ring is sandwiched between the flange 11 of the resin sleeve 71 and the leaf spring by the restoring force of the leaf spring. One end of the leaf spring is hooked on the stepped portion of the protrusion having an inclined surface, and the hub iron core is sandwiched between the resin sleeve and the one end of the leaf spring.

Further, Japanese Patent Laid-Open No. 2001-304291 discloses an example in which a wire spring 23 is used in place of a leaf spring as the holding member, as shown in FIG. One end 23a of the wire spring 23 has a hub iron core 82 and a resin sleeve 81.
Is inserted into a through hole 24 provided in the axial direction of the outer ring, and the other end is brought into contact with the end portion 75b of the outer ring 75, and the outer ring is brought into contact with the resin sleeve by the spring force so as to be capable of minute movement in the radial direction. The hub iron core 82 is provided with an anvil 14 that extends axially symmetrically in a columnar shape in the radial direction in the disk portion 82a to increase the strength of the entire hub iron core, and the tip of the release fork 55 is brought into contact with the anvil surface 14a. . Tongue 77 of FIG.
Instead, a clip wire 70 made of spring steel is provided. One end of the clip wire 70 is fitted into the guide groove 11c provided on the outermost periphery of the end surface of the flange portion 11 on the bearing side, and the clip wire 70 crosses the flange portion 11 vertically symmetrically and reaches the end of the parallel portion of the hub iron core.
It is arranged to be parallel to the anvil surface 14a and the parallel portion 2d. When assembled into the clutch, the tip of the release fork 55 is positioned between the clip wire 70 and the anvil surface 14a, and when the release fork moves to the right as viewed in FIG. (B), the release fork is caught by the clip wire. The release hub is moved to the right. The aforementioned anvil surface 14a and the clip wire 70 form a fork return guide 78 on which a release fork acts.

[0007]

However, since the conventional holding member of the wave spring shown in FIG. 7 extends over substantially the entire circumference of the conventional holding member, the parts are large and it is difficult to reduce the weight and size. Further, in the case where the leaf spring or the wire spring shown in FIG. 8 is provided at the axisymmetric position, the size is limited, and it is difficult to obtain a large holding force. In addition, since it is arranged so as to avoid interference with the release fork, there is a limitation in size and arrangement.
In view of such a problem, an object of the present invention is that the structure is simple, a large holding force can be obtained, and further, the number of parts is reduced as a unit with a clip wire, a tongue portion, etc., and it is lightweight and easy to assemble. To provide a simple self-aligning clutch release bearing.

[0008]

According to the present invention, a resin sleeve having a shaft hole and a flange portion is integrally assembled with one end of the flange portion of the resin sleeve and is connected to the shaft hole and is larger than the shaft hole. Hub core having a hollow hole, a bearing in which either the inner ring or the outer ring is in contact with the other end of the flange portion of the resin sleeve and the other is rotatable, and the one inner ring or the outer ring is provided with the resin sleeve. In the self-aligning type clutch release bearing, which includes a sandwiching member sandwiching so as to slightly contact in the radial direction, the hub iron core is for moving the self-aligning type clutch release bearing in the axial direction. An anvil to which a release fork can come into contact is formed in the radial direction in an axially symmetrical manner, and has locking portions near both lateral ends of the anvil, respectively, and the holding member has the locking portion. A mounting portion that is respectively locked, two bent end portions that extend in the inner diameter direction so that the one inner ring or the outer ring can be biased toward the resin sleeve, and a connection that connects the mounting portion and the bent end portion, respectively. The above-mentioned problem was solved by providing a self-aligning clutch release bearing which is a spring member having a portion and an end portion connecting the two bent ends.

(Operation) An anvil formed in the hub iron core in an axially symmetrical radial direction is provided, and locking portions are provided in the vicinity of both ends in the width direction of the anvil, and the holding member is locked to the locking portion. Therefore, the holding member can have a large width, and there is no protruding portion other than the release fork position,
Also, there is little interference with the release fork. Further, since the strength near the anvil is high, the holding member can be securely locked. The holding member is a spring member composed of a mounting portion, a bent end portion, a connecting portion connecting the mounting portion and the bent end portion, and an end portion connecting the bent ends to each other. Can be easily molded.

A spring material having elasticity is used as the material of the holding member. The shape may be a plate shape, but a linear wire spring is preferable from the viewpoint of material cost and workability, but in the invention of claim 2, the holding member is formed by one wire spring. The cross section of the wire spring is preferably circular, but may be rectangular.

From the standpoint of strength and stability, it is preferable that the connecting portion of the sandwiching member is arranged along the hub iron core or a part of the resin sleeve from the free state. Therefore, in the invention according to claim 3, the connecting portion is made parallel to the axial direction, and the shoulder portion is provided near both ends of the hub iron core and the resin sleeve or the anvil portion of the resin sleeve. A part of the connecting portion is brought into contact with this shoulder portion.

On the other hand, it is desired that the holding member can be easily attached to the locking portion. Therefore, in the invention according to claim 4, the mounting portion is symmetrical with respect to the anvil, and extends in the axial direction from the connecting portion along the hub iron core and the anvil. It was set apart from the anvil and extended in a right angle direction. Further, the locking portion is provided on the resin sleeve, and a projection portion provided in contact with the shoulder portion and protruding in the axial direction, an inclined surface provided on the shoulder portion side of the projection portion, and the projection portion A step portion provided at an end portion, the step portion protruding from the hub iron core, the hub iron core being sandwiched between the resin sleeve and the attaching portion, and the attaching portion being the step portion. I was able to lock with. That is, for example, the mounting portion has a lateral line shape of the L-shaped bottom portion of the L shape and the inverted L shape with respect to the anvil, and when the holding member is radially inserted from the shoulder portion, the tip mounting portion is inclined from the shoulder portion to the sloped surface. It gets over the step and reaches the step, and is prevented from coming off in the radial direction. Further, the bearing, the resin sleeve, and the hub iron core are sandwiched in the axial direction by the elastic force of the sandwiching member. Especially, since the mounting part is along the hub iron core and the anvil, the strength can be secured and the stability is stable.

In the invention of claim 5, which is another invention of the engaging portion, the attaching portion is symmetrical with respect to the anvil, and the hub iron core and the anvil are extended from the connecting portion. Has a rod-shaped end that extends in the axial direction along the axial direction and is folded back at the end, and the locking portion is a through hole provided in the axial direction of the hub iron core or the hub iron core and the resin sleeve. The rod end is fitted in the through hole. According to this, since the rod-shaped end is fitted into the through hole and the connecting portion is brought into contact with the shoulder portion, the radial direction and the circumferential direction are securely fixed. If the through hole is formed through the hub iron core and the resin sleeve, it is possible to help prevent the resin sleeve and the hub iron core from being displaced in the rotational direction. Also, as described above, since the mounting portion is along the hub iron core and the anvil, it is possible to secure strength and be stable.

The holding member is arranged on the anvil with which the tip of the release fork abuts. Therefore, in the invention according to claim 6, the holding member includes an extension portion extending from at least one of the attachment portions of the holding member in an axial direction opposite to the connecting portion, and an extension portion extending from the extension portion to an axial side. And a projecting portion for projecting, and the tip of the release fork can be arranged between the projecting portion and the anvil.
That is, since the mounting portion is extended and the overhanging portion is arranged so as to have the same function as that of the clip wire or the like, the holding member can be integrated with the clip wire, tongue or the like. The overhanging portion can be easily obtained by extending and molding a wire spring, a leaf spring or the like which is a holding member.

[0015]

BEST MODE FOR CARRYING OUT THE INVENTION A first embodiment of the present invention will be described. FIG. 1 shows a first embodiment of the present invention,
1A is a front view of the self-centering clutch release bearing viewed from the hub iron core side, FIG. 1B is a partial cross-sectional view and a side view taken along line Y-O-X of FIG. FIG. 3 is a perspective view of a wire spring, which is a holding member, showing a first embodiment in a free state before assembling, and FIG. 3 is a side view showing a state where the holding member is fitted according to the first embodiment of the present invention. . In FIG. 1, the resin sleeve 1 has a substantially cylindrical shape having a shaft hole 1 a and a collar portion 11. The shaft hole 1a is dimensioned so as to be slidable in the axial direction by the retainer as described in FIG.
The recess 1c at the center of the shaft hole 1a is a relief provided so as to facilitate sliding. The disk portion 13 of the hub iron core 2 is in contact with the collar portion 11 on the right side in the figure.

The hub iron core 2 is formed with a substantially cylindrical portion 2c which is connected to the disk portion 13 and has a hollow hole 2a larger than the shaft hole 1a and a parallel portion 2d. A plate-shaped tongue portion 20 bent outward is provided at the end of the substantially cylindrical portion. Also,
A column-shaped anvil (overhang) 14 is axially symmetrically formed in the disk portion 13 at the same position as the parallel portion 2d in the radial direction. The outer peripheral surface of the parallel portion 2d of the hub iron core serves as a guide for the release fork 55 shown in FIG. 6 when assembled in the clutch. The tip of the release fork 55 can be brought into contact with the surface 14a of the anvil 14, and the tip of the release fork comes into contact with the surface 20a of the tongue portion 20 to move the release hub in the right direction as viewed in FIG. On the contrary, the tip of the release fork comes into contact with the anvil surface 14a, whereby the release hub is moved to the left. Also,
A short cylindrical part 1 of a substantially cylindrical shape on the hub iron core mounting side of the resin sleeve 1.
e is growing.

A protruding portion 12 is formed on the bearing 10 side of the collar portion 11, and the outer ring 5 of the release bearing 10 has a small gap 21 between the inner diameter surface 12a of the protruding portion and the outer diameter surface 5a of the outer ring 5 and other portions than the collar portion 11. The outer ring is brought into contact with the end 11b so that the outer ring can be slightly moved in the radial direction. Bearing 10 is rolling element 6
The inner ring 4 is arranged so as to project in the axial direction via the. Further, even if the outer ring 5 moves in the radial direction, the inner ring 4 is freely rotatable with respect to the outer ring 5 without interfering with the resin sleeve 1. Reference numerals 8 and 9 are seal members for preventing intrusion of dust and the like into the bearing, and reference numeral 7 is a cage.

A groove 22 is provided in the hub iron core 2 near both ends of the anvil 14, and a shoulder portion 15 extending horizontally is formed in the resin sleeve as viewed in FIG. 1A. Further, the resin sleeve 1 is formed with a projection 16 that is in contact with the shoulder 15 and projects in the axial direction. The shoulder 15 and the protrusion 16 are adapted to fit in the groove 22 of the hub iron core 2, and serve as a detent for the hub iron core 2 and the resin sleeve 1. The protrusion 16 is a slope 16a provided on the shoulder 15 side.
And a step 16b provided at the end opposite to the protrusion
The step portion projects from the hub iron core 2 and is formed as a locking portion 16. Further, an anvil groove 25 is provided between the anvil 14 side of the protrusion 16 and the anvil 14.

The holding member 3 is formed of a wire spring having a circular cross section, and as shown in FIG. 2A, the mounting portion 3a and the outer ring 5 are provided.
The two bent ends 3b extending in the inner diameter direction so as to urge the resin sleeve 1 toward the resin sleeve 1, the connecting part 3c connecting the mounting part and the bent end, and the end 3d connecting the two bent ends. Have. The mounting portion 3a is symmetrical with respect to the anvil 14, extends axially from the connecting portion 3c along the hub iron core 2 and the anvil, and extends from the anvil at a tip portion 3e and at a right angle. That is, they are respectively L-shaped and inverted L-shaped. In addition,
In addition to the shape shown in FIG. 2 (a), the holding member 3 made of a wire spring may have an end portion 3d that draws an arc corresponding to the outer ring diameter of the bearing, as shown in FIG. 2 (b). There is no interference with the bearing. Alternatively, as shown in FIG. 2C, the length of the end portion 3d may be reduced so that the end portion 3d has a substantially triangular shape when viewed in the direction of the arrow in the figure. Various shapes can be applied.

According to this structure, as shown in FIG. 3, when the holding member 3 is inserted in the radial direction from the shoulder portion 15 side as shown by the arrow, the mounting portion 3a passes over the shoulder portion 15 over the slope 16a and the step portion 16b. And the tip 3e of the mounting portion reaches the projection 16
The mounting portion is locked to the locking portion so that the holding member 3 is not caught in the radial direction by being caught by the stepped portion 16b. On the other hand, the bent end 3c and the end 3d are hooked on the end surface 5b of the outer ring 5 opposite to the resin sleeve, and the bearing 10, the resin sleeve 1, and the hub core 2 are axially clamped by the elastic force of the clamping member. . Therefore, the holding member 3 has a simple structure, and the holding member can be easily fitted in the locking portion 16 in the radial direction. Furthermore, since the holding member 3 and the locking portion 16 can be made relatively large around the anvil 14, the strength and the holding force can be increased, and a preload according to the conditions can be provided. Further, the side of the connecting portion 3c of the mounting portion 3a has an anvil groove 2
5, the hub iron core 2 and the anvil 14 can be reliably followed, so that the strength can be secured and the stability can be secured.

Next, a second embodiment of the present invention will be described. The second embodiment is different from the first embodiment in the attachment portion of the engaging portion and the sandwiching member, and
Since the engaging portion and the attaching portion of No. 1 have the same structure as that shown in FIG. 8 of the related art, the illustration is omitted. The locking portion is a hub iron core or a through hole provided in the axial direction of the hub iron core and the resin sleeve as shown by reference numeral 24 in FIG. 8, and the mounting portion is not L-shaped or inverted L-shaped. 8 is a rod-shaped end that is folded back in the axial direction at the end indicated by the reference numeral 23a, and this rod-shaped end is inserted into the through hole. Since the locking parts are provided on both sides of the anvil centering on the anvil 14 as compared with the conventional one, the strength and the clamping force can be increased, the appropriate preload can be provided, and the strength of the mounting part can be secured, as described above. You can
Stabilize.

A third embodiment of the present invention will be described. 4A and 4B show a third embodiment of the present invention. FIG. 4A is a front view of a self-aligning clutch release bearing viewed from the hub iron core side, and FIG. 4B is a Y-O of FIG. FIG. 5 is a partial cross-sectional view and a side view taken along the line X, and FIG. 5 is a perspective view of a wire spring, which is a holding member, in a free state before assembly, showing the third embodiment. In the third embodiment, the shape of the wire spring, which is a holding member, is different from that of the first embodiment, and the protruding portion 18 corresponding to the clip wire 70 is used instead of the tongue portion 20 of FIG.
The wire spring is equipped with. No tongue is provided. Others are the same as those in the first embodiment, and therefore, the same reference numerals are given to the main parts and the description thereof will be omitted. The holding member 3'is formed of a wire spring having a circular cross section, and as shown in FIG. 5, the mounting portion 3a and two bent end portions 2 extending in the inner diameter direction so as to urge the outer ring 5 toward the resin sleeve 1 side.
b, a connecting portion 2c that connects the mounting portion and the bent end portion, and an end portion 2d that connects the two bent ends. The mounting portion 2a is symmetrical with respect to the anvil 14, and extends in the axial direction from the connecting portion 3c along the hub iron core 2 and the anvil 14, and extends from the anvil at a tip portion 3e and extends at a right angle. It is designed to have an inverted L shape. Particularly, in the third embodiment, the extension portion 17 further extends from the L-shape of the attachment portion 3a in the axial direction opposite to the connecting portion. The extension portion 17 once extends outward, and the extension portion 18 extends further toward the shaft side.
The holding member 3 ′, that is, the protruding portion 18 of the wire spring is located at the same position as the tongue portion 20 of FIG.

According to this, the wire spring and the clip wire can be integrated to form the holding member, and in addition to the features of the first embodiment described above, the number of parts is small and the manufacturing is easy. The shape of the wire spring 3'is shown in FIG.
Needless to say, various types are possible as in (c). A leaf spring may be used instead of the wire spring. Further, the extension portion 17 or the overhanging portion 18 may be formed into a wire spring shape and attached to the leaf spring by welding or caulking. In addition, in the embodiment, the case where the outer ring is sandwiched is described, but it goes without saying that the invention can be applied to the case where the inner ring is sandwiched.

[0024]

As described above, according to the present invention, the engaging portions are provided near the both ends of the anvil in the width direction, and the attaching portions of the sandwiching members are engaged with the engaging portions. It can be made large, and the protrusions other than the release fork position are reduced, so there is little interference with the release fork. Also,
The vicinity of the anvil has high strength and the holding member is securely locked. Therefore, it is possible to provide a self-aligning type clutch release bearing which has a simple structure, can obtain a large holding force, and is less restricted in arrangement and the like. Further, the sandwiching member is a spring member composed of a mounting portion, a bent end portion, a connecting portion connecting the mounting portion and the bent end portion, and an end portion connecting the bent ends to each other, and has a simple structure,
Can be easily molded from spring material. Therefore, it is lightweight and easy to assemble (Claim 1). Further, the holding member is 1
It can be molded with a wire spring, and can be easily processed, lightweight, and low in cost (claim 2). Further, the hub iron core and the resin sleeve or shoulder portions are provided in the vicinity of both side ends of the anvil portion of the resin sleeve so that a part of the connecting portion abuts, so that the assembly is easy and stable even after assembly (claim 3). ).

The mounting portion of the sandwiching member is symmetrical with respect to the anvil, and extends in the axial direction along the anvil, and extends from the anvil at an end portion and at a right angle.
Also, the resin sleeve is provided with a locking part consisting of a shoulder part and a protrusion so that it protrudes from the hub iron core, slides the end of the mounting part on the slope of the protrusion, and fits it on the step of the end of the protrusion. The hub iron core was clamped and locked between the resin sleeve and the mounting portion so that the hub iron core could be used. Therefore, the clamping member can be locked simply by inserting it in the radial direction, and the elastic force of the clamping member causes the bearing,
The resin sleeve and the hub iron core were sandwiched, and the mounting part was placed along the hub iron core and the anvil to secure the strength and stabilize it. Further, even a simple structure is surely assembled, the assembly is easy, and it is less likely to be disassembled or damaged by an external force or the like (claim 4).

Further, the connecting portion is brought into contact with the shoulder portion, the locking portion is formed as a through hole, the mounting portion of the holding member is formed as a rod end, and the rod end is fitted into the through hole, whereby the radial direction and the circumferential direction are set. It is possible to secure the fixation of No. 1 and to prevent the resin sleeve and the hub iron core from being displaced in the rotational direction. With a simpler structure, the strength can be secured and the stability can be obtained (Claim 5).

An extension portion extending from at least one attachment portion of the sandwiching member in the axial direction opposite to the connecting portion and an extension portion extending axially from the extension portion are provided, and the release portion is provided between the extension portion and the anvil. The tip of the fork was made displaceable, and the overhanging portion worked like a clip wire or tongue. As a result, the holding member and the clip wire are integrated,
The present invention provides a self-aligning type clutch release bearing which has a small number of parts, is lightweight and easy to assemble, and can be firmly assembled using an anvil (claim 6).

[Brief description of drawings]

FIG. 1A is a front view of a self-aligning clutch release bearing showing a first embodiment of the present invention as viewed from a hub iron core side, and FIG. 1B is a Y-O-X line of FIG. It is the fragmentary sectional view and the side view which followed.

FIG. 2 is a perspective view of a wire spring, which is a holding member, in a free state before assembly, showing a first embodiment of the present invention.

FIG. 3 is a side view showing a state in which the holding member is fitted, showing the first embodiment of the present invention.

4A is a front view of a self-aligning clutch release bearing according to a third embodiment of the present invention as viewed from a hub iron core side, and FIG. 4B is a Y-O-X line of FIG. 4A. It is the fragmentary sectional view and the side view which followed.

FIG. 5 is a perspective view of a wire spring that is a holding member according to a third embodiment of the present invention in a free state before assembly.

FIG. 6 is a cross-sectional structural view in the vicinity of a clutch of an automobile showing a usage state of a self-aligning clutch release bearing.

FIG. 7 is a vertical sectional view of a conventional self-aligning clutch release bearing.

FIG. 8A is a front view of the conventional self-aligning clutch release bearing as seen from the hub iron core side, and FIG. 8B is a cross-sectional view taken along line Y-O-X of FIG. 8A.

[Explanation of symbols]

1 resin sleeve 1a Shaft hole 2 hub iron core 2a hollow hole 3, 3'Clamping member (wire spring) 3a Mounting part 3b bent end 3c connection part 3d end 3e Tip 4 inner ring 5 outer ring 5b Outer ring end face 10 Release bearing 11 Tsuba 11a One end of collar part 11b The other end of the collar 13 Disc 14 Anvil 15 Shoulder 16 Locking part (projection part) 16a slope 16b step 17 Extension 18 Overhanging part 23c Rod-shaped part 24 through holes 55 Release Fork

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Claims (6)

[Claims] 1. A resin sleeve having a shaft hole and a flange portion; and a hub iron core integrally assembled with one end of the flange portion of the resin sleeve and connected to the shaft hole and having a hollow hole larger than the shaft hole. A bearing in which either the inner ring or the outer ring is in contact with the other end of the flange portion of the resin sleeve and the other is rotatable, and the one inner ring or the outer ring can be slightly moved in the radial direction of the resin sleeve. In a self-aligning clutch release bearing consisting of a sandwiching member that sandwiches the self-aligning clutch release bearing, a release fork for axially moving the self-aligning clutch release bearing can be brought into contact with the hub iron core. The anvil is formed axially symmetrically in the radial direction,
Locking portions are provided near both side ends of the anvil in the width direction, and the sandwiching member has a mounting portion that is locked by the locking portion, and the one inner ring or the outer ring is attached to the resin sleeve side. A spring member having two bent end portions extending in the inner diameter direction so as to be able to urge, a connecting portion connecting each of the mounting portion and the bent end portion, and an end portion connecting the two bent end portions to each other. A self-aligning clutch release bearing featuring. 2. The self-centering clutch release bearing according to claim 1, wherein the holding member is a single wire spring. 3. The connecting portion is parallel to the axial direction, and the connecting portion is brought into contact with the hub iron core and the resin sleeve or shoulder portions provided near both ends of the anvil portion of the resin sleeve. The self-centering clutch release bearing according to claim 1 or 2, characterized in that 4. The mounting portion is symmetrical with respect to the anvil, and extends in the axial direction from the connecting portion along the hub iron core and the anvil. The locking portion is provided on the resin sleeve and extends in the axial direction so as to project in the axial direction, an inclined surface provided on the shoulder side of the projection, and the projection. A step portion provided at an end of the portion, the step portion protruding from the hub iron core, the hub iron core being sandwiched between the resin sleeve and the attachment portion, and the attachment portion being the The self-centering clutch release bearing according to claim 3, wherein the stepped portion can be locked. 5. The mounting portion is symmetrical with respect to the anvil, and has a rod-shaped end extending in the axial direction from the connecting portion along the hub iron core and the anvil and folded back at the end. The locking portion is a through hole provided in an axial direction of the hub iron core or the hub iron core and the resin sleeve, and the rod-shaped end is fitted into the through hole. The self-centering clutch release bearing according to claim 2. 6. The holding member includes an extension portion extending from at least one of the attachment portions in an axial direction opposite to the connection portion, and an overhang portion extending from the extension portion to an axial side. ,
The tip of the release fork can be disposed between the overhang portion and the anvil.
5. A self-aligning clutch release bearing according to any one of items 1 to 4.