EP 1284917 A4 20050309 - PRETENSIONER DRIVE
Title (en)
PRETENSIONER DRIVE
Title (de)
ANTRIEB FÜR EINEN SICHERHEITSGURTSTRAFFER
Title (fr)
MECANISME D'ENTRAINEMENT DE PRETENDEUR
Publication
Application
Priority
- US 0117553 W 20010531
- US 20840300 P 20000531
Abstract (en)
[origin: WO0192138A1] A pretensioner (10) for a seat belt (12) utilizes a perforated strap (34) loosely coiled about a hub (38) wherein the hub (38) is, in normal operation of a vehicle, rotatable with a webbing reel shaft (40). A plurality of protrusions (42) are circumferentially spaced about the hub and mesh with the perforated strap (34) upon activation of the pretensioner (10). The pretensioner (10) contains a first passage (44) and a second passage (46) for the respective containment of the hub (38) and an actuator (20), wherein each passage is formed perpendicular and in volumetric intersection with the other. The pretensioner (10) also contains a gas generant composition (22) in combustive communication with the actuator (20). Upon ignition, the gas pressure produced by the pyrotechnic (22) propels the actuator (32) into the strap (34), thereby effecting rotary advancement of the hub (38) and the shaft (40), and thus pretensioning the seat belt (12) wound about a spool (11) of a seat belt retractor (14), wherein the spool (11) is rotatably engaged with a second portion of the shaft (40) and thus provided in coaxial relation with the hub (38).
IPC 1-7
IPC 8 full level
B60R 22/46 (2006.01); B65H 75/40 (2006.01)
CPC (source: EP)
B60R 22/4633 (2013.01); B60R 2022/468 (2013.01)
Citation (search report)
- [A] EP 0641691 A1 19950308 - TOKAI RIKA CO LTD [JP]
- See references of WO 0192138A1
Designated contracting state (EPC)
AT BE DE GB
DOCDB simple family (publication)
WO 0192138 A1 20011206; EP 1284917 A1 20030226; EP 1284917 A4 20050309; JP 2003534985 A 20031125
DOCDB simple family (application)
US 0117553 W 20010531; EP 01941726 A 20010531; JP 2001588120 A 20010531