Global Patent Index - EP 1056629 A1

EP 1056629 A1 2000-12-06 - FORCE TRANSMITTING HYDROMECHANIC DEVICE

Title (en)

FORCE TRANSMITTING HYDROMECHANIC DEVICE

Title (de)

HYDROMECHANISCHE KRAFTÜBERTRAGUNGSVORRICHTUNG

Title (fr)

DISPOSITIF HYDRO-MECANIQUE DE TRANSMISSION D'EFFORT

Publication

EP 1056629 A1 (FR)

Application

EP 99904925 A

Priority

  • FR 9900392 W
  • FR 9802377 A

Abstract (en)

[origin: FR2775459A1] The invention concerns a device for transmitting and amplifying force for a braking system, comprising a pedal (1) and an output rod (2), and capable of transmitting via its output rod (2), in response to an input force (F1) of a first intensity level exerted on the pedal (1), an output force (F2) of a second intensity level higher than the first. The invention is characterised in that it further comprises an input rod (3) integral with the pedal (1), a primary piston (4) integral with the input rod (3); a primary cylinder (5) of a first diameter (D1) wherein the primary piston (4) defines a primary chamber (51); a secondary piston (6) whereof the output rod (2) is made integral; and a secondary cylinder (7) of a second diameter (D2), larger than the first (D1), wherein the secondary piston (6) defines a secondary chamber (71) communicating with the primary chamber (51).

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

B60T 7/04

IPC 8 full level (invention and additional information)

B60T 7/04 (2006.01); B60T 11/224 (2006.01); F15B 7/00 (2006.01)

CPC (invention and additional information)

F15B 7/00 (2013.01); B60T 7/04 (2013.01); B60T 11/224 (2013.01)

Citation (search report)

See references of WO 9943522A1

Designated contracting state (EPC)

DE ES FR GB IT

EPO simple patent family

FR 2775459 A1 19990903; FR 2775459 B1 20000421; EP 1056629 A1 20001206; US 6324844 B1 20011204; WO 9943522 A1 19990902

INPADOC legal status


2003-09-10 [18D] DEEMED TO BE WITHDRAWN

- Effective date: 20030226

2002-11-27 [17Q] FIRST EXAMINATION REPORT

- Effective date: 20021015

2000-12-06 [17P] REQUEST FOR EXAMINATION FILED

- Effective date: 20000712

2000-12-06 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: A1

- Designated State(s): DE ES FR GB IT