Winding – tensioning – or guiding – Reeling device – With spring motor
Patent
1996-06-27
1997-11-18
Darling, John P.
Winding, tensioning, or guiding
Reeling device
With spring motor
280805, B60R 2228
Patent
active
056879253
ABSTRACT:
A seat belt webbing retractor (10) includes a spool assembly (60) around which seat belt webbing (16) is wound. The spool assembly (60) is rotatable in webbing withdrawal and webbing retraction directions (A,B). A member, such as a ratchet wheel, (70) is rotatable in the withdrawal and retraction directions (A,B) with the spool assembly (60). A lock pawl, (190) is engageable with the rotatable member (70) for blocking rotation of the rotatable member (70) and the spool assembly (60) in the withdrawal direction (A). The spool assembly (60) is rotatable relative to the rotatable member (70) upon the occurrence of a tension above a predetermined amount in the webbing (16). A deformable member (78) is plastically deformed to absorb energy during rotation of the spool assembly (60) relative to the rotatable member (70). A hub (112) and a ring (140), are also rotatable upon rotation of the spool assembly (60) relative to the rotatable member (70). The deformable member (78) has a plurality of annular projections (94, 102), and the hub and ring (112, 140) deform the projections to absorb energy.
REFERENCES:
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patent: 4323205 (1982-04-01), Tsuge et al.
patent: 5526996 (1996-06-01), Ebner et al.
patent: 5547143 (1996-08-01), Miller, III et al.
patent: 5558295 (1996-09-01), Bauer
Darling John P.
TRW Vehicle Safety Systems Inc.
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