JPH0558968U - Self-aligning clutch release device - Google Patents

Abstract

(57) [Abstract] [Purpose] Prevents the fork receiver from rotating together when the rolling bearing idles when the clutch is disengaged, resulting in reduced performance and noise, as well as a resin sleeve, rolling bearing and hub iron. Prevents loosening and damage of the caulking part that integrates the core. [Structure] Retainer 2 surrounding main drive shaft 21
A resin sleeve 23, which slides on the outer periphery of the shutter 2 under the swinging motion of the release fork 20, is incorporated in the retainer. Further, the resin sleeve 23 is pressed by the spring 6 and
The rolling bearing in contact with the collar portion 10 is attached. further,
On the outer peripheral surface of the resin sleeve 23a, a pair of fork receiving guide portions 24 are formed symmetrically with respect to the center line of the sleeve. The hub iron core 26 is provided with the recess 12, and the resin sleeve 23a is provided with the protrusion 13 corresponding to the recess 12 so that the recess 12 and the protrusion 13 are engaged with each other.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 This invention connects and disconnects power between an automobile engine and a transmission, and even if there is a deviation in the center of rotation between the two, abnormal wear or heat is generated on the contact surface between the diaphragm spring or release lever and the rolling bearing. The present invention relates to a clutch release device having an automatic centering function capable of preventing the generation of abnormal noise.

[0002]

[Prior Art]

 As shown in FIG. 9, the self-aligning clutch release device is located between the engine side E and the transmission side T and surrounds the main drive shaft 21 by the swinging motion of the release fork 20. A resin sleeve 23 that slides on the outer circumference of the cylindrical retainer 22, and a rolling bearing 28 that is incorporated in the resin sleeve 23 and one of the inner and outer races contacts the diaphragm spring 26 to engage and disengage the clutch. Is incorporated. As shown in detail in FIGS. 7 and 8, the rolling bearing 28 is provided with an extension 1a extending from the inner end of the outer ring 1 toward the center line OO, and the inner diameter end thereof is fixed to the resin sleeve 23. It is incorporated in the apparatus in a state of being pressed by the hub iron core 26 via the wave spring 6 that is in contact with the retaining ring 7. In this embodiment, the inner ring 2 extends axially outward, and the portion presses the diaphragm spring 15 to rotate the inner ring. It has a fork receiver 25 provided with a pair of fork guide surfaces 24 fixed to the release fork 20. In addition, the hub iron core 25 having the inner peripheral end portion embedded in the resin sleeve 23 is provided with the fork receiver 24 by bending a plurality of locking portions 27 formed on the outer peripheral side thereof. It is integrated. Reference numeral 3 denotes a ball rotatably incorporated between the outer ring 1 and the inner ring 2.

Further, in Japanese Utility Model Publication No. 3-4831, a collar-shaped portion is provided on the outer circumference of a resin sleeve, and the collar portion and the fork receiver are integrated by a locking portion provided on a cover that covers the rolling bearing. Or a small-diameter ridge having an annular contact plate provided on a resin hub is provided on the outer periphery of the hub, and the annular contact plate and fork receiver are integrally incorporated by a locking piece formed on the cover. Is also described.

[0004]

[Problems to be solved by the device]

 In the conventional ones shown in FIGS. 7 and 8, since the fork receiver is integrated with the locking portion 27 formed on the outer periphery of the hub iron core, there is a tendency that the fork receiver rotates together when the rolling bearing rotates. Therefore, the locking portion 27 is loosened during use, resulting in deterioration of performance and generation of noise. Moreover, as described above, the hub iron core 26 is embedded in the resin hub 23 by being injection-molded in a state of being inserted inside, so that its processing is difficult and the cost becomes high.

Further, in the device disclosed in Japanese Utility Model Publication No. 3-4831, the cover, the annular pad and the fork receiver are integrated by the engaging portion provided on the cover, but the resin sleeve and the fork receiver are integrated. Has a clearance in the radial direction, the vibration during operation causes the resin three-part, the annular pad and the fork receiver to slide in the radial direction, resulting in wear and damage of the resin three-piece flange. On the other hand, in the structure disclosed in the other where the flange of the resin sleeve and the fork receiving part are integrated with the locking part of the cover, the pressure applied when caulking the cover locking part is the resin. Since the collar portion of the sleeve made of resin is also loaded, the collar portion of the resin sleeve may be damaged.

[0006]

[Means for Solving the Problems]

 The present invention has been made to solve the above-mentioned problems, and it is a cylindrical shape that surrounds the main drive shaft between the engine side and the transmission side and receives the swinging motion of the release fork. Resin sleeve that slides on the outer periphery of the retainer and integrally has a flange portion on the outer peripheral side, a hub iron core that is incorporated into one end of the resin sleeve and contacts the release fork, and the resin sleeve. Rolling bearing that is installed at the other end of the rolling bearing and that engages and disengages the clutch by contacting the diaphragm spring, a cover that covers the outer circumference of the rolling bearing and is connected to the hub iron core, and a bending of this cover. In a self-aligning clutch release device including a spring that is provided inside the edge and presses the rolling bearing against the flange of the resin sleeve, A pair of fork guide portions are formed on the surface symmetrically with respect to the center line of the sleeve, and a rotation preventing portion that engages with the fork guide portion is provided on the hub iron core. At the same time, the outer diameter of the collar portion of the resin sleeve is covered. By making it the same as the inner diameter, the cover locking part is caulked only to the hub iron core, so that the resin sleeve and the fork receiving iron core can be securely prevented from rotating, and the release device is manufactured or the device is locked. It completely prevents abrasion and damage of the resin sleeve during operation.

[0007]

[Action]

 The self-aligning clutch release device according to the present invention, when the outer ring 1 or the inner ring 2 abuts on the diaphragm spring 15 to disengage the clutch when connecting and disconnecting the power between the engine side E and the transmission side T. When the bearing rings 1 or 2 rotate, the resin sleeve 23a does not rotate together with these rolling elements and operates smoothly.

[0008]

【Example】

 Next, an embodiment of this invention will be described with reference to FIGS. A flange portion 10 extending in the radial direction is formed on a resin sleeve 23a that slides on the outer circumference of a 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 is a rolling bearing and a bending edge 5 formed outside a cover 4 that covers the outer circumference of the rolling bearing. It is pressed toward the collar portion 10 of the resin sleeve 23a, that is, in the axial direction by the wave spring 6 interposed between the outer end surface of the resin sleeve 23a and the outer end surface thereof. The hub iron core 26a has a pair of fork receiving portions 25a and 25a provided with the hollow portion 9 and is press-formed symmetrically with the center line OO of the resin hub 23a. A notch portion 14 is formed on the side where the fork receiver 25a contacts the collar portion 10 of the resin sleeve 23a, and a clip wire (not shown) whose tip engages with the tip of the release fork 20 is inserted. ..

Further, a pair of recesses 12, 12 are provided at positions symmetrical to the center O on the inner peripheral side of the fork receiver 25a of the hub iron core 26, and the outer periphery of the resin sleeve 23a is correspondingly provided. A pair of protrusions 13 is formed on the surface in the longitudinal direction. Thus, the resin sleeve 23a is inserted into the hub iron core 26 in a state where the protrusion 13 is engaged with the above-mentioned concave portion 12 to assemble the both. Next, the plurality of locking portions 27 formed on the outer side of the cover 4 are caulked to the cover rotation preventing portion 11 formed on the outer side of the fork receiver 8 so that the rolling bearing 28 and the fork receiver 25a are attached to the resin sleeve 23a. Can be assembled. It is needless to say that the concave portion 12 and the protruding portion 13 can be provided in the resin sleeve 23a and the protruding portion 13 can be provided in the hub iron core 26 contrary to the embodiment.

[0010]

【effect】

 In this invention, as described above, a pair of fork guide portions are formed on the outer peripheral surface of the hub of the resin sleeve 23a symmetrically with respect to the center line of the hub, and the hub iron core is formed with a fork engaging portion with the fork guide surface. Since the retaining ring 11 is configured, when the outer ring 1 or the inner ring 2 abuts the diaphragm spring 15 and the clutch is disengaged, the resin sleeve 23a rotates when the race ring 1 or 2 rotates. The problem that the caulking part was loosened or damaged during operation of the self-aligning clutch release bearing device was solved.

[Submission date] February 27, 1992

[Procedure Amendment 1]

[Document name to be amended] Statement

[Name of item to be corrected] 0002

[Correction method] Change

[Correction content]

[0002]

[Prior Art]

As shown in FIG. 9, the self-aligning clutch release device is located between the engine side E and the transmission side T and surrounds the main drive shaft 21 by the swinging motion of the release fork 20. A resin sleeve 23 that slides on the outer periphery of the cylindrical retainer 22, and a rolling bearing 28 that is incorporated in the resin sleeve 23 and one of the inner and outer races contacts the diaphragm spring 15 to engage and disengage the clutch. Is incorporated. As shown in detail in FIGS. 7 and 8, the rolling bearing 28 is provided with an extension 1a extending from the inner end of the outer ring 1 toward the center line OO, and the inner diameter end thereof is fixed to the resin sleeve 23. It is incorporated in the apparatus in a state of being pressed by the hub iron core 26 via the wave spring 6 that is in contact with the retaining ring 7. In this embodiment, the inner ring 2 extends outward in the axial direction, and the portion presses the diaphragm spring 15 to rotate the inner ring. It has a fork receiver 25 provided with a pair of fork guide surfaces 24 fixed to the release fork 20. The hub iron core 26 , the inner peripheral end of which is embedded in the resin sleeve 23, is formed by bending a plurality of locking portions 27 formed on the outer peripheral side of the hub iron core 26 to form the fork holder 24. It is integrated. Reference numeral 3 is a ball rotatably incorporated between the outer ring 1 and the inner ring 2.

[Procedure Amendment 2]

[Document name to be amended] Statement

[Correction target item name] 0008

[Correction method] Change

[Correction content]

[0008]

【Example】

Next, an embodiment of this invention will be described with reference to FIGS. A flange portion 10 extending in the radial direction is formed on a resin sleeve 23a that slides on the outer circumference of a 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 is a rolling bearing and a bending edge 5 formed outside a cover 4 that covers the outer circumference of the rolling bearing. It is pressed toward the collar portion 10 of the resin sleeve 23a, that is, in the axial direction by the wave spring 6 interposed between the outer end surface of the resin sleeve 23a and the outer end surface thereof. A pair of fork receiving portion 25a hub iron core 2 6 provided with the cavity 9, 25a are pressed into the centerline O-O and symmetry of the resin sleeve 2 3a. A notch 14 is formed on the side where the fork receiver 25a contacts the collar 10 of the resin sleeve 23a, and a clip wire (not shown) whose tip engages with the tip of the release fork 20 is inserted. ..

[Procedure 3]

[Document name to be amended] Statement

[Correction target item name] 0009

[Correction method] Change

[Correction content]

Further, a pair of recesses 12, 12 are provided at positions symmetrical to the center O on the inner peripheral side of the fork receiver 25a of the hub iron core 26, and the outer periphery of the resin sleeve 23a is correspondingly provided. A pair of protrusions 13 is formed on the surface in the longitudinal direction. Thus, the resin sleeve 23a is inserted into the hub iron core 26 in a state where the protrusion 13 is engaged with the above-mentioned concave portion 12 to assemble the both. Next, the plurality of locking portions 27 formed on the outside of the cover 4 are caulked to the cover rotation preventing portion 11 formed on the outside of the hub iron core 26 , whereby the rolling bearing 28 and the fork receiver 25a are made of resin sleeves. 23a is assembled. It should be noted that the recess 12 and the protrusion 13 can be provided in the resin sleeve 23a and the protrusion 13 can be provided in the hub iron core 26, contrary to the embodiment.

[Procedure amendment 4]

[Document name to be amended] Statement

[Correction target item name] 0010

[Correction method] Change

[Correction content]

[0010]

【effect】

In this invention, as described above, a pair of fork guide portions are formed on the outer peripheral surface of the hub of the resin sleeve 23a symmetrically with respect to the center line of the hub, and the hub iron core is formed with a fork engaging portion with the fork guide surface. Since the retaining ring 11 is configured, when the outer ring 1 or the inner ring 2 abuts the diaphragm spring 15 and the clutch is disengaged, when the bearing ring 1 or 2 rotates, the resin sleeve 23a will rotate these rotating bodies. The problem that the caulking part was loosened or damaged during operation of the self-aligning clutch release bearing device was solved.

[Brief description of 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.

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

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

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

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

8 is a cross-sectional view taken along the line VIII-VIII in FIG.

[Explanation of symbols]

 1 Outer ring 2 Inner ring 4 Cover 5 Bend edge 6 Spring 8 Fork receiver 10 Collar part 11 Cover rotation stop part 12 Recessed part 13 Projection part 15 Diaphragm spring 20 Release fork 21 Main drive shaft 22 Retainer 23 Resin sleeve 24 Fork receiving guide part 25 Fork holder 26 Hub iron core E Engine side T Transmission side

[Procedure amendment]

[Submission date] February 27, 1992

[Procedure Amendment 5]

[Document name to be corrected] Drawing

[Correction target item name] Figure 9

[Correction method] Change

[Correction content]

[Figure 9] ─────────────────────────────────────────────────── ───

[Procedure amendment]

[Submission date] November 26, 1992

[Procedure Amendment 1]

[Document name to be amended] Statement

[Name of item to be corrected] Column for simple explanation of the drawing

[Correction method] Change

[Correction content]

[Brief description of 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.

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

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

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

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

8 is a cross-sectional view taken along the line VIII-VIII in FIG.

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

[Explanation of reference symbols] 1 outer ring 2 inner ring 4 cover 5 bent edge 6 spring 8 fork receiver 10 collar part 11 cover rotation stop part 12 recess 13 protrusion 15 diaphragm spring 20 release fork 21 main drive shaft 22 retainer 23 resin sleeve 24 Fork receiving guide 25 Fork receiving 26 Hub iron core E Engine side T Transmission side

Claims (2)

[Scope of utility model registration request] 1. A cylindrical retainer, which is located between an engine side and a transmission side and which receives a swinging motion of a release fork and surrounds a main drive shaft, slides on an outer periphery of the retainer and has a collar portion on the outer periphery. A resin sleeve integrally provided with the hub, a hub iron core that is incorporated into one end of the resin sleeve and contacts the release fork, and a hub that is incorporated into the other end of the resin sleeve and contacts the diaphragm spring to engage the clutch. A rolling bearing having a bearing ring for removing
An automatic adjusting device that includes a cover that covers the outer circumference of the rolling bearing and is connected to the hub iron core, and a spring that is provided inside the bent edge of the cover and that presses the rolling bearing against the flange portion of the resin sleeve. In the heart clutch release device,
A pair of fork guide portions are formed on the outer peripheral surface of the resin sleeve symmetrically with respect to the center line of the sleeve, and a rotation preventing portion that engages with the fork guide portion is provided on the hub iron core. A self-aligning clutch release device in which the outer diameter of the part is substantially the same as the inner diameter of the cover. 2. The fork guide portion formed on the outer peripheral surface of the resin sleeve is an axial protruding portion, and the rotation preventing portion formed on the hub iron core is a concave portion corresponding to the axial protruding line. The self-aligning clutch release device according to claim 1.