GB2251911A - Hydraulic clutch operation arrangement including conical spring acting as a sealing cover - Google Patents
Hydraulic clutch operation arrangement including conical spring acting as a sealing cover Download PDFInfo
- Publication number
- GB2251911A GB2251911A GB9200631A GB9200631A GB2251911A GB 2251911 A GB2251911 A GB 2251911A GB 9200631 A GB9200631 A GB 9200631A GB 9200631 A GB9200631 A GB 9200631A GB 2251911 A GB2251911 A GB 2251911A
- Authority
- GB
- United Kingdom
- Prior art keywords
- spring
- hydraulic clutch
- clutch operation
- operation arrangement
- winding
- 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.)
- Withdrawn
Links
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
- F16D25/00—Fluid-actuated clutches
- F16D25/08—Fluid-actuated clutches with fluid-actuated member not rotating with a clutching member
- F16D25/082—Fluid-actuated clutches with fluid-actuated member not rotating with a clutching member the line of action of the fluid-actuated members co-inciding with the axis of rotation
- F16D25/083—Actuators therefor
-
- 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)
- Quick-Acting Or Multi-Walled Pipe Joints (AREA)
- Fluid-Damping Devices (AREA)
- Hydraulic Clutches, Magnetic Clutches, Fluid Clutches, And Fluid Joints (AREA)
- Springs (AREA)
Abstract
A buffer spring (6) is constructed as a conical spiral spring with a rectangular winding cross-section, so that it serves at the same time as a covering for the space which it surrounds containing a hydraulic piston (3). The spring (6) is preferably provided with bends at its ends in order to resist torsion. <IMAGE>
Description
2251 l 1 Hydraulic clutch operation arranqement The present invention
relates to a hydraulic clutch operation arrangement comprising a clutch bearing, a sliding sleeve acting thereon, which serves at the same time as a piston, a housing having the pressure medium supply and a spring, arranged between the housing and the coupling bearing, prestressing the coupling bearing and securing it against torsion.
Such a clutch operation arrangement is proposed in DE-U-71 29 822. Identical clutch operation arrangements, as regards construction, are also proposed in DE-U-88 15 881 and US-A-4,708,228. All the embodiments have in common the fact that they have a cylindrical spiral spring, prestressing the clutch bearing, arranged between the housing and the clutch bearing, and have a cover arrangement, e.g. in the form of a bellows, surrounding the housing or respectively the operation arrangement.
The spiral spring and the cover arrangement are individual parts which must be mounted separately from each other, which requires additional storage and expenditure on assembly. In addition, they require space axially and radially.
An aim of the present invention is further developing a clutch operation arrangement ofthe construction indicated in the opening paragraph of the 2 present specification such that by simple means a clutch operation arrangement is produced which saves space and comprises fewer individual parts.
Accordingly the present invention is directed to a hydraulic clutch operation arrangement having the construction set out in the opening paragraph of the present specification in which the spring is constructed as a conical spiral spring with a rectangular winding cross-section, so that it serves at the same time as a covering for the space which it surrounds. - It is possible to make an arrangement in accordance with the immediately preceeding paragraph which fulfills three requirements, namely prestressing of the bearing and security with regard to torsion and covering, with a single element, which in addition is commercially available at a favourable cost in comparison with a conventional construction.
Advantageously the spring is provided at the start of the winding and at the end of the winding with 0 bends to secure it against torsion.
Preferably the pitch of the spring winding is smaller than the width of the rectangular winding crosssection.
An example of a hydraulic clutch operation arrangement made in accordance with the present invention is shown in the accompanying drawing, the only Figure of which shows an axial sectional view of such an 1 Z,t - 3 arrangement.
The clutch bearing 1 shown in the Figure is arranged so as to be radially adjustable via an adjustment spring 2 on the sliding sleeve 3, which at the same time serves as a piston and forms a pressure chamber together with a housing 4 which has a pressure medium supply S. Between the housing 4 and the clutch bearing 1, a buffer spring 6 is arranged, which both prestresses the clutch bearing 1 and secures it against torsion, and also serves as a covering for the space which it surrounds. The buffer spring 6 is constucted as a conical spiral spring with a rectangular winding cross-section. It is provided at the start and end of its winding with bends (not shown) to secure it against torsion, and it has a pitch which is smaller than the width of the rectangular winding crosssection. Consequently, the conventional bellows seal can be dispensed with.
Claims (4)
1. A hydraulic clutch operation arrangement comprising a clutch bearing, a sliding sleeve acting thereon, which serves at the same time as a piston, a housing having the pressure medium supply and a spring, arranged between the housing and the coupling bearing, prestressing the coupling bearing and securing it against torsion, in which the spring is constructed as a conical spiral spring with a rectangular winding cross-section, so that it serves at the same time as a covering for the space which it surrounds.
2. A hydraulic clutch operation arrangement according to Claim 1, in which the spring is provided at the start of the winding and at the end of the winding with bends to secure it against torsion.
3. A hydraulic clutch operationarrangement according to Claim 1, in which the pitch of the spring winding is smaller than the width of the rectangular winding cross-section.
4. A hydraulic clutch operation arrangement sustantially as described herein with reference to and as shown in the accompanying drawing.
ip W 11
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE4100950A DE4100950C2 (en) | 1991-01-15 | 1991-01-15 | Hydraulic clutch actuator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| GB9200631D0 GB9200631D0 (en) | 1992-03-11 |
| GB2251911A true GB2251911A (en) | 1992-07-22 |
Family
ID=6423028
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB9200631A Withdrawn GB2251911A (en) | 1991-01-15 | 1992-01-13 | Hydraulic clutch operation arrangement including conical spring acting as a sealing cover |
Country Status (4)
| Country | Link |
|---|---|
| DE (1) | DE4100950C2 (en) |
| FR (1) | FR2671593B3 (en) |
| GB (1) | GB2251911A (en) |
| IT (1) | IT1252209B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2313894A (en) * | 1996-06-07 | 1997-12-10 | Fichtel & Sachs Ag | Slave cylinder having a wavy spring between bearing assembly and housing |
| WO1998030810A1 (en) * | 1997-01-10 | 1998-07-16 | Automotive Products (Usa) Inc. | Hydraulic pressure clutch actuator with combined boot and spring |
| WO2008026991A1 (en) * | 2006-09-01 | 2008-03-06 | Scania Cv Ab (Publ) | Telescopic protection device for a brake piston rod and vehicle |
| WO2014162005A1 (en) * | 2013-04-05 | 2014-10-09 | Richard Bergner Verbindungstechnik Gmbh & Co. Kg | Assembly unit |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4338262C2 (en) * | 1992-11-14 | 2003-11-06 | Zf Sachs Ag | Hydraulically actuated release system for a drawn friction clutch |
| DE10349174A1 (en) * | 2003-10-22 | 2005-05-19 | Zf Friedrichshafen Ag | Operating device for friction clutch has protective cap protecting at least part of piston against external influences |
| DE102012212539A1 (en) * | 2012-07-18 | 2014-01-23 | Schaeffler Technologies AG & Co. KG | clutch release bearing |
| DE102015202324A1 (en) * | 2014-03-05 | 2015-09-10 | Schaeffler Technologies AG & Co. KG | Actuation system for opening and / or closing a clutch of a motor vehicle |
| DE102017218512A1 (en) | 2017-10-17 | 2019-04-18 | Zf Friedrichshafen Ag | Actuator with dirt shield |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB238107A (en) * | 1924-11-22 | 1925-08-13 | Brown Lipe Gear Co | Improvements in or relating to friction clutches |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE7129822U (en) * | 1971-11-04 | Skf Kugellagerfabriken Gmbh | Release device for clutches | |
| DE3206873A1 (en) * | 1982-02-26 | 1983-09-15 | Fichtel & Sachs Ag, 8720 Schweinfurt | HYDRAULICALLY OPERABLE ROLLER BEARING RELEASE |
| US4708228A (en) * | 1984-09-20 | 1987-11-24 | Automotive Products Plc | Bearing support for motor vehicle clutch control apparatus |
| DE8815881U1 (en) * | 1988-12-22 | 1989-02-09 | FAG Kugelfischer Georg Schäfer KGaA, 8720 Schweinfurt | Hydraulic clutch actuation device |
-
1991
- 1991-01-15 DE DE4100950A patent/DE4100950C2/en not_active Expired - Fee Related
- 1991-12-13 IT ITMI913350A patent/IT1252209B/en active IP Right Grant
-
1992
- 1992-01-07 FR FR9200079A patent/FR2671593B3/en not_active Expired - Fee Related
- 1992-01-13 GB GB9200631A patent/GB2251911A/en not_active Withdrawn
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB238107A (en) * | 1924-11-22 | 1925-08-13 | Brown Lipe Gear Co | Improvements in or relating to friction clutches |
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5964333A (en) * | 1996-06-07 | 1999-10-12 | Fichtel & Sachs Ag | Friction clutch and a slave cylinder for the operation of a friction clutch |
| FR2749628A1 (en) * | 1996-06-07 | 1997-12-12 | Fichtel & Sachs Ag | RECEIVER CYLINDER FOR ACTUATING A FRICTION CLUTCH |
| GB2313894B (en) * | 1996-06-07 | 2000-03-29 | Fichtel & Sachs Ag | Friction clutch slave cylinder |
| GB2313894A (en) * | 1996-06-07 | 1997-12-10 | Fichtel & Sachs Ag | Slave cylinder having a wavy spring between bearing assembly and housing |
| ES2140292A1 (en) * | 1996-06-07 | 2000-02-16 | Fichtel & Sachs Ag | Friction clutch and a slave cylinder for the operation of a friction clutch |
| GB2325037A (en) * | 1997-01-10 | 1998-11-11 | Automotive Prod Co Ltd | Hydraulic pressure clutch actuator with combined boot and spring |
| US5887692A (en) * | 1997-01-10 | 1999-03-30 | Automotive Products (Usa), Inc. | Hydraulic pressure cylinder with combined boot and spring |
| WO1998030810A1 (en) * | 1997-01-10 | 1998-07-16 | Automotive Products (Usa) Inc. | Hydraulic pressure clutch actuator with combined boot and spring |
| GB2325037B (en) * | 1997-01-10 | 2000-11-08 | Automotive Prod Co Ltd | Hydraulic pressure clutch actuator with combined boot and spring |
| WO2008026991A1 (en) * | 2006-09-01 | 2008-03-06 | Scania Cv Ab (Publ) | Telescopic protection device for a brake piston rod and vehicle |
| EP2066913A1 (en) * | 2006-09-01 | 2009-06-10 | Scania CV AB (publ) | Telescopic protection device for a brake piston rod and vehicle |
| EP2066913A4 (en) * | 2006-09-01 | 2012-01-25 | Scania Cv Abp | Telescopic protection device for a brake piston rod and vehicle |
| WO2014162005A1 (en) * | 2013-04-05 | 2014-10-09 | Richard Bergner Verbindungstechnik Gmbh & Co. Kg | Assembly unit |
| US9664226B2 (en) | 2013-04-05 | 2017-05-30 | Richard Bergner Verbindungstechnik Gmbh & Co. Kg | Assembly unit |
Also Published As
| Publication number | Publication date |
|---|---|
| GB9200631D0 (en) | 1992-03-11 |
| DE4100950A1 (en) | 1992-07-16 |
| FR2671593A1 (en) | 1992-07-17 |
| FR2671593B3 (en) | 1993-05-14 |
| IT1252209B (en) | 1995-06-05 |
| ITMI913350A0 (en) | 1991-12-13 |
| DE4100950C2 (en) | 1998-10-15 |
| ITMI913350A1 (en) | 1993-06-13 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| WAP | Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1) |