Land vehicles – Wheeled – Attachment
Patent
1994-11-08
1996-08-13
Tyson, Karin L.
Land vehicles
Wheeled
Attachment
188377, 297472, B60R 2228
Patent
active
055449182
ABSTRACT:
A seat belt webbing retractor (22) includes a spool (72) on which a length of belt webbing (16) is wound. A stop member (100) is fixed in position on a vehicle. A crush plate (60) is secured to the retractor (22), and both the retractor (22) and the crush plate (60) are movable in a direction (132) toward the stop member (100). A crushable energy absorbing material, preferably a honeycomb (130), is disposed in the path of movement of the crush plate (60). The crushable material (130) controls movement of the crush plate (60) relative to the stop member (100), reducing the abruptness of the load on a vehicle occupant during a collision. In a second embodiment, the resistance provided by a crushable member (280) may be controlled in response to a sensed characteristic (310) of the vehicle occupant.
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HEXCEL, "Design Data for the Preliminary Selection of Honeycomb Energy Absorption Systems", 1993 or earlier.
Fleming William J.
Steffens, Jr. Charles E.
TRW Vehicle Safety Systems Inc.
Tyson Karin L.
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