GB2072789A - A sliding sleeve for a clutch release bearing assembly - Google Patents
A sliding sleeve for a clutch release bearing assembly Download PDFInfo
- Publication number
- GB2072789A GB2072789A GB8109032A GB8109032A GB2072789A GB 2072789 A GB2072789 A GB 2072789A GB 8109032 A GB8109032 A GB 8109032A GB 8109032 A GB8109032 A GB 8109032A GB 2072789 A GB2072789 A GB 2072789A
- Authority
- GB
- United Kingdom
- Prior art keywords
- sleeve
- insert
- flange
- sliding sleeve
- projection
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 239000000463 material Substances 0.000 claims abstract description 23
- 238000013016 damping Methods 0.000 claims abstract description 9
- 229910000831 Steel Inorganic materials 0.000 claims description 6
- 229920003023 plastic Polymers 0.000 claims description 6
- 239000004033 plastic Substances 0.000 claims description 6
- 239000010959 steel Substances 0.000 claims description 6
- 241000282472 Canis lupus familiaris Species 0.000 claims description 2
- 238000012986 modification Methods 0.000 claims description 2
- 230000004048 modification Effects 0.000 claims description 2
- 230000002028 premature Effects 0.000 claims description 2
- 238000005096 rolling process Methods 0.000 claims description 2
- 210000002105 tongue Anatomy 0.000 claims description 2
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D23/00—Details of mechanically-actuated clutches not specific for one distinct type
- F16D23/12—Mechanical clutch-actuating mechanisms arranged outside the clutch as such
- F16D23/14—Clutch-actuating sleeves or bearings; Actuating members directly connected to clutch-actuating sleeves or bearings
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Mechanical Operated Clutches (AREA)
Abstract
The sleeve (10) for a clutch release bearing assembly is made from a vibration and noise damping material and has one or more radially outwardly extending projections (11) for contact by a clutch actuating lever (13). Embedded in the or each projection (11) is an insert 21, 23, 24 of a more rigid material which stiffens the or each projection and limits any wear that may occur of the thin layer of material between the insert and the clutch actuating lever. <IMAGE>
Description
SPECIFICATION
A sliding sleeve for a clutch release bearing assembly
This invention concerns a sliding sleeve for a clutch release bearing assembly and includes the assembly having the sliding sleeve.
The invention provides a sliding sleeve for a clutch release bearing assembly, the sleeve being made from a vibration and noise damping material and having one or more radially outwardly extending projections, the or each projection providing an axially facing surface for engagement by a clutch actuating lever, wherein an insert of a more rigid material than that of the rest of the sleeve is completely embedded in the or each projection in the vicinity of the said axially facing surface and stiffens the or each projection.
The projection may comprise an annular flange and the insert may comprise an annular disc.
The insert may comprise an annular axially extending portion embedded in the tubular portion of the sleeve and one or more radially outwardly extending portions embedded in the or each projection.
The sleeve may be made from a plastics material and the insert may be made from steel.
The invention also includes a clutch release bearing assembly including a sliding sleeve according to the invention.
An embodiment of the invention will now be described by way of example and with reference to the accompanying drawing which is a longitudinal section through a clutch release bearing assembly.
The clutch release bearing assembly shown comprises a sliding sleeve 10 made from a material which damps vibration and noises for example a resiliently deformable plastics. The sleeve 10 has a tubular portion and a radially outwarding extending annular flange 11 providing an axially facing surface 12 for engagement by a clutch actuating lever 1 3 (shown in chain-dot).
Disposed around the sleeve 10, on the other axial end of the flange 11 to the lever 13, is a rolling bearing 14 comprising an outer race ring 15, an inner race ring 16 and an annular row of balls 1 7 arranged to roll on the raceways of the two race rings. The outer race ring 1 5 is arranged to bear on the flange 11 by means not shown. The inner race ring 1 6 is extended axially in a direction away from the flange 11 and has a radially outwardly extending flange 1 8 with an axially facing surface 1 9. The tongues 20 of a clutch diaphragm spring abut the surface 1 9 of the flange 18.
Embedded completely in the flange 11 is an insert 21 made from a material more rigid than that of the rest of the sleeve 10, for example steel. The insert 21 is an annular disc disposed in the vicinity of the surface 12 of the flange, the insert having a surface 22 axially facing the lever 13. The thickness of the layer from surface 12 to surface 21 is made relatively thin. The insert 21 stiffens the flange 11 in the region of the abutment faces of the actuating lever 13 and limits any wear that may occur of the thin layer between the insert and the actuating lever.
Radial and axial wobble of the clutch diaphragm spring often causes vibration to build up in the bearing leading to premature failure of the bearing. The dogs of the actuating lever are pressed into the noise and vibration damping material preventing rotation of the sleeve relative to the lever and the build up of vibration in the bearing. The axial vibrations caused by the axial wobble of the clutch diaphragm spring are damped and prevented from being transmitted through the bearing and actuating lever to the clutch pedal.
Modifications to the described and illustrated embodiment are envisaged. For example, instead of a radial annular flange 1 two diametrically opposed radially outwardly extending projections may be provided. The insert 21 may then comprise an annular axially extending portion 23 (shown in dashed line) completely embedded in the tubular portion of the sleeve 10, and two radially outwardly extending portions 24 (shown in dashed line) completely embedded in the radial projections.
With the radial annular flange 1 the insert 21 may also comprise the annular portion 23 and the portions 24 may then be an annular flange.
The tubular portion of the sleeve 10 adjacent the actuating lever 1 3 may have two flats or a double edge engaged by the lever so that the sleeve is fixed for rotation with the lever. The insert can then be shaped correspondingly with a thin layer of the vibration and noise damping material between the insert and the surfaces of the actuating lever.
1. A sliding sleeve for a clutch release bearing assembly, the sleeve being made from a vibration and noise damping material and having one or more radially outwardly extending projections, the or each projection providing an axially facing surface for engagement by a clutch actuating lever, wherein an insert of a more rigid material than that of the rest of the sleeve is completely embedded in the or each projection in the vicinity of the said axially facing surface and stiffens the or each projection.
2. A sliding sleeve as claimed in claim 1, wherein the projection comprises an annular flange and the insert comprises an annular disc.
3. A sliding sleeve as claimed in claim 1, wherein the insert comprises an annular axially extending portion embedded in the tubular portion of the sleeve and one or more radially outwardly extending portions embedded in the or each projection.
4. A sliding sleeve as claimed in any preceding claim, wherein the sleeve is made from a plastics material and the insert is made from steel.
5. A sliding sleeve substantially as herein described with reference to and as shown in the accompanying drawing.
**WARNING** end of DESC field may overlap start of CLMS **.
Claims (7)
1. A sliding sleeve for a clutch release bearing assembly, the sleeve being made from a vibration and noise damping material and having one or more radially outwardly extending projections, the or each projection providing an axially facing surface for engagement by a clutch actuating lever, wherein an insert of a more rigid material than that of the rest of the sleeve is completely embedded in the or each projection in the vicinity of the said axially facing surface and stiffens the or each projection.
2. A sliding sleeve as claimed in claim 1, wherein the projection comprises an annular flange and the insert comprises an annular disc.
3. A sliding sleeve as claimed in claim 1, wherein the insert comprises an annular axially extending portion embedded in the tubular portion of the sleeve and one or more radially outwardly extending portions embedded in the or each projection.
4. A sliding sleeve as claimed in any preceding claim, wherein the sleeve is made from a plastics material and the insert is made from steel.
5. A sliding sleeve substantially as herein described with reference to and as shown in the accompanying drawing.
6. A clutch release bearing assembly including a sliding sleeve as claimed in any preceding claim.
7. A clutch release bearing assembly substantially as herein described with reference to and as shown in the accompanying drawing.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19808008531U DE8008531U1 (en) | 1980-03-28 | 1980-03-28 | CLUTCH RELEASE |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| GB2072789A true GB2072789A (en) | 1981-10-07 |
| GB2072789B GB2072789B (en) | 1983-09-28 |
Family
ID=6714222
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB8109032A Expired GB2072789B (en) | 1980-03-28 | 1981-03-23 | Sliding sleeve for a clutch release bearing assembly |
Country Status (5)
| Country | Link |
|---|---|
| JP (1) | JPS56141423A (en) |
| DE (1) | DE8008531U1 (en) |
| FR (1) | FR2479378A1 (en) |
| GB (1) | GB2072789B (en) |
| IT (2) | IT1169207B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2518679A1 (en) * | 1981-12-21 | 1983-06-24 | Skf Kugellagerfabriken Gmbh | SLIDING SLEEVE FOR DEBRAYEUR |
| FR2526107A1 (en) * | 1982-05-01 | 1983-11-04 | Nippon Seiko Kk | Plastics components in a vehicle clutch shift mechanism - are unfilled or glass filled grades depending on lubrication and stiffness needs |
| US5156248A (en) * | 1990-09-07 | 1992-10-20 | Skf France | Clutch thrust bearing |
| WO2008025634A1 (en) * | 2006-08-31 | 2008-03-06 | Schaeffler Kg | Release bearing guide structure |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58145110A (en) * | 1982-02-23 | 1983-08-29 | Mitsubishi Electric Corp | Transformer coil |
| JPS60241204A (en) * | 1984-05-16 | 1985-11-30 | Toshiba Corp | Foil-wound transformer |
| FR2770269B1 (en) * | 1997-10-28 | 1999-11-26 | Skf France | CLUTCH STOP CONTROL DEVICE |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2151146A6 (en) * | 1971-08-20 | 1973-04-13 | Ferodo Sa | |
| GB1545499A (en) * | 1975-10-24 | 1979-05-10 | Quinton Hazell Holdings Ltd | Clutch release bearing |
-
1980
- 1980-03-28 DE DE19808008531U patent/DE8008531U1/en not_active Expired
-
1981
- 1981-02-16 IT IT19785/81A patent/IT1169207B/en active
- 1981-02-16 IT IT8120813U patent/IT8120813V0/en unknown
- 1981-03-10 JP JP3327881A patent/JPS56141423A/en active Pending
- 1981-03-23 GB GB8109032A patent/GB2072789B/en not_active Expired
- 1981-03-24 FR FR8105861A patent/FR2479378A1/en active Granted
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2518679A1 (en) * | 1981-12-21 | 1983-06-24 | Skf Kugellagerfabriken Gmbh | SLIDING SLEEVE FOR DEBRAYEUR |
| US4576268A (en) * | 1981-12-21 | 1986-03-18 | Skf Kugellagerfabriken Gmbh | Sliding sleeve for clutch shifters |
| FR2526107A1 (en) * | 1982-05-01 | 1983-11-04 | Nippon Seiko Kk | Plastics components in a vehicle clutch shift mechanism - are unfilled or glass filled grades depending on lubrication and stiffness needs |
| US5156248A (en) * | 1990-09-07 | 1992-10-20 | Skf France | Clutch thrust bearing |
| WO2008025634A1 (en) * | 2006-08-31 | 2008-03-06 | Schaeffler Kg | Release bearing guide structure |
Also Published As
| Publication number | Publication date |
|---|---|
| IT1169207B (en) | 1987-05-27 |
| GB2072789B (en) | 1983-09-28 |
| FR2479378A1 (en) | 1981-10-02 |
| IT8119785A0 (en) | 1981-02-16 |
| IT8119785A1 (en) | 1982-08-16 |
| JPS56141423A (en) | 1981-11-05 |
| IT8120813V0 (en) | 1981-02-16 |
| FR2479378B1 (en) | 1984-06-22 |
| DE8008531U1 (en) | 1980-06-26 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PCNP | Patent ceased through non-payment of renewal fee |