Bumper system with face-mounted energy absorber
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United States of America Patent
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-
Apr 5, 2005
Grant Date -
Oct 9, 2003
app pub date -
Apr 4, 2003
filing date -
Apr 16, 2001
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A bumper includes a beam and an energy absorber supported thereon. The energy absorber includes horizontal walls, each having a front portion, a rear portion, and an interconnecting mid-portion that offsets and misaligns the front and rear portions. Upon impact, the front and rear portions collapse with the offset mid portion wrapping back upon itself with a predictable energy-absorbing collapse. The energy absorber further includes flanges and friction pads that frictionally engage the top and bottom of the beam to temporarily retain the energy absorber to the beam. In one embodiment, the front beam wall includes at least one aperture, and the energy absorber includes a tubular column extending from its front wall through the aperture in the front beam wall to the rear beam wall. By this arrangement, the front wall of the energy absorber receives support from the front beam wall via the structural column.
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