EP 1286869 A1 20030305 - PRETENSIONER DRIVER
Title (en)
PRETENSIONER DRIVER
Title (de)
GURTSTRAFFER-ANTRIEB
Title (fr)
DISPOSITIF DE COMMANDE DE PRETENDEUR
Publication
Application
Priority
- US 0140841 W 20010604
- US 20906000 P 20000602
Abstract (en)
[origin: WO0192069A1] A pretensioner (10) for a seat belt (12) employs a strap (30) fixed about a pulley (34) and also fixed at an opposite end (36) to a housing (18). Upon pretensioner activation, an actuator (20) is propelled across a rectangular passage (72) thereby impelling a portion (31) of the strap (30) extending across the passage (72). Torque created by the strap (30) about the pulley (34) effects slideable and rotary engagement of the geared pulley (34) with a geared hub (38). The geared hub (38) co-axially and rotatably communicates with a seat belt retractor spool (46) wherein a seat belt retractor spool shaft (40) axially extends through hub (38) and spool (46). Activation of the pretensioner (10) therefore results in ignition of a gas generant (22) that produces sufficient gas pressure to drive the actuator (20), thereby effecting rotary movement in the pulley (34), the hub (38), the shaft (40), and the spool (46) to thereby tension the seat belt.
IPC 1-7
IPC 8 full level
B60R 22/46 (2006.01)
CPC (source: EP)
B60R 22/4633 (2013.01); B60R 2022/468 (2013.01)
Designated contracting state (EPC)
DE GB
DOCDB simple family (publication)
WO 0192069 A1 20011206; EP 1286869 A1 20030305; EP 1286869 A4 20050309; JP 2003534971 A 20031125; JP 3749183 B2 20060222
DOCDB simple family (application)
US 0140841 W 20010604; EP 01946736 A 20010604; JP 2001588055 A 20010604