Global Patent Index - EP 0988169 A1

EP 0988169 A1 2000-03-29 - DEVICE FOR MEASURING THE CONTACT FORCE IN A POWER COLLECTOR

Title (en)

DEVICE FOR MEASURING THE CONTACT FORCE IN A POWER COLLECTOR

Title (de)

EINRICHTUNG ZUR MESSUNG DER ANPRESSKRAFT AN EINEM STROMABNEHMER

Title (fr)

DISPOSITIF POUR MESURER LA FORCE DE PRESSION AU NIVEAU D'UN PANTOGRAPHE

Publication

EP 0988169 A1 (DE)

Application

EP 98936201 A

Priority

  • DE 9801657 W
  • DE 19725906 A

Abstract (en)

[origin: WO9856610A1] The invention relates to an improved device for measuring the contact force between a contact wire and a power collector in an electrically powered vehicle, specially an electrical railway vehicle, by means of optical fiber force sensors. To this end, two compact force sensors are arranged between the base body (7) of the wearing strip (6) and the swing-out chassis (7) or between the wearing element (8) and the base body (7) of the wearing strip (6). Each sensor includes a deformable body (11), which is elastic in an axial direction but highly rigid crosswise, said body being fitted with an integrated optical fiber reflex sensor (19). Axial deformations of the deformable body (11) equivalent to the contact force are detected by the reflex sensor (19) with high resolution, accuracy and no interference, are then signalled to a device via optical fibers requiring no potential and converted therein into contact force-equivalent signals (28) or instructions (29).

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

B60L 5/28

IPC 8 full level (invention and additional information)

G01L 5/00 (2006.01); B60L 5/00 (2006.01); B60L 5/22 (2006.01); B60L 5/26 (2006.01); B60L 5/28 (2006.01)

CPC (invention and additional information)

B60L 5/28 (2013.01); B60L 2200/26 (2013.01)

Citation (search report)

See references of WO 9856610A1

Designated contracting state (EPC)

AT BE CH DE DK ES FR GB IE IT LI NL PT SE

EPO simple patent family

WO 9856610 A1 19981217; CN 1159175 C 20040728; CN 1259911 A 20000712; DE 19725906 C1 19990218; EP 0988169 A1 20000329; JP 2002504997 A 20020212; KR 100333225 B1 20020425; KR 20010013736 A 20010226; RU 2199725 C2 20030227; US 6418397 B1 20020709

INPADOC legal status


2005-07-06 [18D] DEEMED TO BE WITHDRAWN

- Effective date: 20050101

2001-04-11 [RAP1] TRANSFER OF RIGHTS OF AN EP PUBLISHED APPLICATION

- Owner name: DAIMLERCHRYSLER RAIL SYSTEMS GMBH

2000-03-29 [17P] REQUEST FOR EXAMINATION FILED

- Effective date: 19991022

2000-03-29 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: A1

- Designated State(s): AT BE CH DE DK ES FR GB IE IT LI NL PT SE