Global Patent Index - EP 1070005 A1

EP 1070005 A1 2001-01-24 - SEAT BELT TENSIONING SYSTEM

Title (en)

SEAT BELT TENSIONING SYSTEM

Title (de)

SPANNUNGSYSTEM FÜR SICHERHEITSGÜRTEL

Title (fr)

TENDEUR DE CEINTURE DE SECURITE

Publication

EP 1070005 A1 (EN)

Application

EP 99921340 A

Priority

  • SE 9900571 W
  • SE 9801261 A

Abstract (en)

[origin: WO9951469A1] A conventional seat belt rolling-up frame (101) is equipped with an electric motor (112) for tensioning the seat belt both to a comfort value for normal rides and to high forces in emergency situations. The motor can be activated as often as required without any need for maintenance. The power required to drive the motor is obtained from a high voltage capacitor (114) storing sufficient energy. The seat belt will then be independent of the resistance of the starter battery of the vehicle in which the seat belt is mounted. All electronic parts connected to the stator phases of the motor and to the capacitor are contained in a shielding enclosure (104, 119, 124) resulting in low emissions of high frequency electromagnetic noise. The motor is mounted at a first end of a belt roller shaft (102) to drive this shaft directly. The mounting is made so that the motor and the shaft will be displaced by the very high belt tensions created by a serious crash. Cog means (120) can then lock the rotor of the motor and thereby the shaft. Signal processing circuits (108, 109, 107) for low voltage signals are located inside a casing (101e) attached at a second opposite end of the shaft.

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

B60R 22/36; B60R 22/46

IPC 8 full level (invention and additional information)

B60R 22/44 (2006.01); B60R 22/46 (2006.01)

CPC (invention and additional information)

B60R 22/46 (2013.01); B60R 22/44 (2013.01); B60R 2022/4473 (2013.01); B60R 2022/4666 (2013.01)

Citation (search report)

See references of WO 9951469A1

Designated contracting state (EPC)

DE ES FR GB IT SE

EPO simple patent family

WO 9951469 A1 19991014; AU 3857899 A 19991025; EP 1070005 A1 20010124; SE 9801261 D0 19980407

INPADOC legal status


2003-11-05 [18D] DEEMED TO BE WITHDRAWN

- Effective date: 20030423

2003-01-29 [17Q] FIRST EXAMINATION REPORT

- Effective date: 20021212

2001-01-24 [17P] REQUEST FOR EXAMINATION FILED

- Effective date: 20001020

2001-01-24 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: A1

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