Global Patent Index - EP 1003982 A1

EP 1003982 A1 2000-05-31 - FRICTION CLUTCH WITH WEAR TAKE-UP DEVICE, IN PARTICULAR FOR MOTOR VEHICLE

Title (en)

FRICTION CLUTCH WITH WEAR TAKE-UP DEVICE, IN PARTICULAR FOR MOTOR VEHICLE

Title (de)

REIBUNGSKUPPLUNG MIT EINER VERSCHLEISSNACHSTELLUNG, INSBESONDERE FÜR KRAFTFAHRZEUGE

Title (fr)

EMBRAYAGE A FRICTION A DISPOSITIF DE RATTRAPAGE D'USURE, NOTAMMENT POUR VEHICULE AUTOMOBILE

Publication

EP 1003982 A1 (FR)

Application

EP 99928044 A

Priority

  • FR 9901501 W
  • FR 9808002 A

Abstract (en)

[origin: FR2780464A1] The clutch comprises flywheel (11), with linked cover (15), friction disk (12) with friction liner (13) acted on by pressure plate (14) to impart output rotation to the drive shaft (27). The diaphragm arms (16) act on the plate (14) to cause clutch engagement. A mechanical screw compensator (18) adjusts for width change in the lining (13) due to wear or heat. For disengagement the rod (40) is moved causing the piston (31) in the cylinder (30) to produce fluid flow through pipe (43) connection to the diaphragm actuator (20), with piston (21) causing arm (15) movement to the disengaged position and releasing the pressure plate. On release of the rod (40) the piston (21) retracts under the force of the spring (23) to a new position set by the compensator (18) to allow for width change in the liner (13). The piston (31) fully retracts under the force of spring (33). Fluid make-up from the reservoir (41) is ensured via the non-return valve (50) to the cylinder (30). Further actuation of the rod (40) for clutch disengagement produces diagram actuation from the newly adjusted stop position, thereby avoiding play in the rod before clutch disengagement. Hydraulic or electric versions of the actuator may be provided.

IPC 1-7 (main, further and additional classification)

F16D 25/12; F16D 13/75

IPC 8 full level (invention and additional information)

F16D 13/75 (2006.01); F16D 25/08 (2006.01); F16D 25/12 (2006.01)

CPC (invention and additional information)

F16D 25/087 (2013.01); F16D 13/752 (2013.01); F16D 25/126 (2013.01)

Citation (search report)

See references of WO 9967546A1

Designated contracting state (EPC)

GB IT

EPO simple patent family

FR 2780464 A1 19991231; FR 2780464 B1 20000908; DE 19981375 T1 20010621; EP 1003982 A1 20000531; WO 9967546 A1 19991229

INPADOC legal status


2005-01-19 [18D] DEEMED TO BE WITHDRAWN

- Ref Legal Event Code: 18D

- Effective date: 20040730

2004-04-21 [17Q] FIRST EXAMINATION REPORT

- Ref Legal Event Code: 17Q

- Effective date: 20040309

2003-10-29 [RAP1] TRANSFER OF RIGHTS OF AN EP PUBLISHED APPLICATION

- Owner name: VALEO EMBRAYAGES S.A.S.

- Ref Legal Event Code: RAP1

2000-05-31 [17P] REQUEST FOR EXAMINATION FILED

- Ref Legal Event Code: 17P

- Effective date: 20000222

2000-05-31 [AK] DESIGNATED CONTRACTING STATES:

- Ref Legal Event Code: AK

- Designated State(s): GB IT