JP2572249Y2 - Self-aligning clutch release device - Google Patents

Description

[Detailed description of the invention]

[0001]

This invention relates to the connection and disconnection of power between the engine and the transmission of a car,
The present invention relates to a clutch release device having an automatic centering function capable of preventing abnormal wear, heat generation, and abnormal noise on a contact surface between a diaphragm spring or a release lever and a rolling bearing even if a rotational center between the two members is displaced. Things.

[0002]

2. Description of the Related Art A self-aligning clutch release device includes an engine side E and a transmission side T as shown in FIG.
And a resin sleeve 23 that slides on the outer periphery of a cylindrical retainer 22 that surrounds the main drive shaft 21 by receiving the swinging motion of the release fork 20, and is incorporated in the resin sleeve 23, A rolling bearing 28 is incorporated in which one of the inner and outer races contacts the diaphragm spring 15 to engage and disengage the clutch. As shown in detail in FIGS. 7 and 8, the rolling bearing 28 is provided with an extension 1 a extending from the inner end of the outer race 1 toward the center line OO, and the inner end thereof is fixed to the resin sleeve 23. It is assembled into the device while being pressed against the hub iron core 26 via the wave spring 6 in contact with the retaining ring 7. In this embodiment, the inner ring 2 extends outward in the axial direction, and the portion
To rotate the inner ring. A pair of fork guide surfaces 24 fixed to the release fork 20
Is provided. A hub iron core 2 having an inner peripheral end buried in the resin sleeve 23.
6 is integrated with the fork receiver 24 by bending a plurality of locking portions 27 formed on the outer peripheral side thereof. Reference numeral 3 denotes a ball rotatably incorporated between the outer ring 1 and the inner ring 2.

Further, Japanese Utility Model Publication No. 3-4831 discloses that
A flange portion is provided on the outer periphery of the resin sleeve, and the flange portion and the fork receiver are integrally incorporated by a locking portion provided on a cover that covers the rolling bearing, or an annular contact plate is provided on the resin hub. It is also described that a small-diameter ridge is provided on the outer periphery of the hub, and an annular abutment plate and a fork receiver are integrally incorporated by a locking piece formed on a cover. further,
In the device described in Japanese Utility Model Publication No. 18820, a resin
Make the collar of the leave smaller than the inside diameter of the cover, and
Only the part that is covered with the cover is caulked
You.

[0004]

[Problem to be solved by the present invention ]
The metal receiving part is made of metal and the three that move on the retainer
The bearing outer ring and three
Assembling the fork holder. So, for example, the figure
7. As shown in FIG. 8, a hook formed on the outer periphery of the hub iron core
Since it is integrated with the fork receiver by the stopper 27,
When the rolling bearing rotates, the sleeve rotates,
The rock receiver rotates around and contacts the fork to receive the torque.
Tend to be broken. This rotational force is transmitted through the locking portion 27.
Runode, loosening of the locking portion 27 occurs in use, lowering of the performance
And the generation of noise.

[0005] On the other hand, Japanese Patent Publication No. Hei.
The sleeve and the fork holder, the resin sleeve,
Fork holder that regulates the radial direction of the resin fork
And a fork receiver that regulates the axial direction of the metal fork
And a resin sleeve and a resin fork
The resin sleeve and the resin fork receiver.
Metal forks in the cutouts provided for each
The projection provided on the receiver is fitted and
It is intended to embody. But this one is made of resin
The sleeve and the plastic fork holder are separate
In the radial direction, and when the structure becomes complicated,
There was a problem. The problem of the present invention is to consider such a problem.
Small size and simple structure without loosening
To provide a simple self-aligning clutch release device.
You.

[0006]

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problem, and is provided between an engine side and a transmission side. A resin sleeve that slides on the outer periphery of a cylindrical retainer that surrounds the drive shaft and has an integral flange on the outer periphery, and a hub iron core that is incorporated into one end of the resin sleeve and contacts the release fork A rolling bearing having a raceway that is incorporated into the other end of the resin sleeve and abuts against a diaphragm spring to engage and disengage the clutch; a cover that covers the outer periphery of the rolling bearing and is coupled to a hub iron core; A self-aligning clutch release device comprising a spring provided inside the bent edge of the cover and pressing the rolling bearing against the flange of the resin sleeve. A resin Three formed integrally
With respect to the center line of the sleeve extending in the axial direction of the outer peripheral surface of the sleeve
Symmetrically regulated radially for a pair of release forks
Forming a fork guide portion having a flat surface and a hub iron
The core engages with the fork guide section at a section corresponding to the section.
It is regulated in the axial direction by the stopper and the release fork.
And a fork guide section
To transfer the torque from the bearing to the resin
Received at the radial fork receiving part of the sleeve
The fork receiving part of the resin sleeve can be
Directly into the corresponding section of the fork holder or hub iron core
It can be assembled and assembled.

[0007]

The self-aligning clutch release device according to the present invention, when connecting and disconnecting power between the engine side E and the transmission side T, is used for the outer ring 1 or the inner ring 2.
If There was rotated raceway ring 1 or 2 when off clutch in contact with the diaphragm spring 15, the resin sleeve 23a has never co around these rolling elements occurs, it operates smoothly and the locking portion It's not too hard
Also secure connection of resin sleeve, hub iron core, cover, etc.
It is. Since the resin sleeve is integrally molded,
Simple in type and structure.

[0008]

Next, an embodiment of the present invention will be described with reference to FIGS. A flange 10 extending in the radial direction is formed on the resin sleeve 23a that slides on the outer periphery of the cylindrical retainer. A rolling bearing 28 having a large number of balls 3 rotatably interposed between an outer ring 1 and an inner ring 2 includes a bent portion edge 5 formed outside a cover 4 that covers the outer periphery of the rolling bearing and a rolling bearing. Spring 6 interposed between the outer end face of
Accordingly, it is pressed toward the flange portion 10 of the resin sleeve 23a, that is, in the axial direction. In the hub iron core 26, a pair of fork receiving portions 25a, 25a having the hollow portions 9 are press-formed symmetrically with respect to the center line OO of the resin sleeve 23a. A cutout portion 14 is formed on the side of the resin sleeve 23a where the fork receiver 25a is in contact with the flange 10, and a clip wire (not shown) whose leading end engages with the leading end of the release fork 20 is inserted therethrough. .

Further, on the outer peripheral surface of the resin sleeve 23a,
Release fork 20 abuts radially in longitudinal direction
A pair of protrusions 13 having a flat surface is formed.
Correspondingly, the fork of the hub iron core 26 is
Butt positioned symmetrically with respect centered O on the inner circumference side of the click receiving 25a
A pair of recesses 12 having a cross section corresponding to the protrusion 13
Is provided. With the protrusion 13 engaged with the recess 12, the resin sleeve 23 a is attached to the hub iron core 26.
And insert both. Next, the plurality of locking portions 27 formed on the outside of the cover 4 are swaged to the cover rotation preventing portion 11 formed on the outside of the hub iron core 26, so that the rolling bearing 28 and the fork receiver 25a are made of a resin sleeve 23a. Assembled. The concave portion 12 and the protruding portion 13 can be provided with the concave portion 12 on the resin sleeve 23a and the protruding portion 13 on the hub iron core 26 in the opposite manner to the embodiment.

[0010]

[Effect of the invention] This invention is based on the resin three
With respect to the center line of the sleeve extending in the axial direction of the outer peripheral surface of the sleeve
Symmetrically regulated radially for a pair of release forks
Forming a fork guide portion having a flat surface and a hub iron
The core engages with the fork guide section at a section corresponding to the section.
Locks the rotation force from the bearing because of the locking part 11
Radial sleeve of the resin sleeve without passing through the
Runode can be obtained by chromatography click receiving portion, when the bearing ring 1 or 2 is rotated when the outer ring 1 or the inner ring 2 has cut the contact with clutch diaphragm spring 15, the resin sleeve 23a is with these rotating body No rotation occurs at the engaging portion, and the problem that the caulked portion is loosened or damaged during operation of the self-aligning clutch release bearing device is solved.

[0011] Furthermore, fork receiving part of resin sleeve
Into the corresponding section of the metal fork receiver or hub iron core.
Fitted and assembled, resin sleeve, hub iron
Secure connection of core, cover, etc., small size and simple structure
To provide a self-aligning clutch release device.
Was.

[Brief description of the drawings]

FIG. 1 is a front view of an embodiment of the present invention.

FIG. 2 is a sectional view taken along line II-II of FIG.

FIG. 3 is a front view of a hub iron core used in the present invention.

FIG. 4 is a sectional view taken along line IV-IV of FIG.

FIG. 5 is a front view of a resin sleeve used in the present invention.

FIG. 6 is a sectional view taken along line VI-VI in FIG.

FIG. 7 is a front view of a conventional product.

8 is a cross-sectional view taken along line Vll-Vlll of FIG. 7;

FIG. 9 is a schematic view of a general self-aligning clutch device.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 Outer ring 2 Inner ring 4 Cover 5 Bending edge 6 Spring 10 Flange part 11 Cover detent part 12 Detent part (recess) 13 Fork having a plane regulated in the radial direction
Guide portion (projecting portion) 15 Diaphragm spring 20 Release fork 21 Main drive shaft 22 Retainer 23 Resin sleeve 24 Fork receiving guide portion 25 Fork guide portion (fork
Over click received) 26 Hub iron core E engine side T transmission side

Claims (1)

(57) [Scope of request for utility model registration] The present invention is characterized in that it is located between an engine side and a transmission side, slides on the outer periphery of a cylindrical retainer surrounding a main drive shaft by receiving a swinging movement of a release fork, and has a flange portion on the outer periphery side. , A hub iron core incorporated at one end of the resin sleeve and abutting against a release fork, and a clutch sleeve incorporated at the other end of the resin sleeve and abutting against a diaphragm spring. A rolling bearing having a bearing ring for removal,
An automatic adjustment comprising a cover covering the outer periphery of the rolling bearing and connected to the hub iron core, and a spring provided inside the bent edge of the cover and pressing the rolling bearing against a flange of a resin sleeve. In the core clutch release device, the axial direction of the outer peripheral surface of the resin sleeve formed integrally.
Symmetrically about a center line of the sleeve.
Have a plane that is radially regulated with respect to the fork
A fork guide is formed, and the fork guide is attached to the hub iron core.
A detent that engages at the cross section corresponding to the
Fork guide part which is regulated in the axial direction by the fork
And self-aligning clutch release
Equipment.