Bumper mounting structure

Details Bumper mounting structure Bumper mounting structure

1997-12-05

2000-04-18

Dayoan, D. Glenn

Vehicle fenders

Buffer or bumper type

Bumper having impact force absorbing means directly...

293135, 293136, 293137, B60R 1926

Patent

active

060506245

ABSTRACT:
If an impact occurs with an impact energy which exceeds an elastic limit of a bumper while a shock-absorbing member is in a projected position, a bumper stay is forced to move rearward along a first actuating chamber to cause the shock-absorbing member to pivot to a received position. The impact energy is primarily absorbed by an elastic force of a first spring which biases the shock-absorbing member toward the projected position. When the impact energy is not thoroughly absorbed by the first spring, the shock-absorbing member fully pivots into its received position by the bumper stay which is continuously moved rearward. At this time, a second spring which biases the shock-absorbing member forward and is prevented from being stretched forward by the shock-absorbing member, is contacted with the bumper stay via a support plate. Accordingly, the second spring secondarily absorbs the impact energy while being more compressed by the bumper stay which continuously moves rearward after causing the shock-absorbing member to fully pivot to its received position.

REFERENCES:
patent: 2997325 (1961-08-01), Peterson
patent: 3301335 (1967-01-01), Snelling
patent: 3313567 (1967-04-01), Sturman
patent: 3788626 (1974-01-01), Isaacson
patent: 3960397 (1976-06-01), Janci
patent: 5339933 (1994-08-01), Bauer et al.
patent: 5806908 (1998-09-01), Kim
patent: 5941582 (1999-08-01), Tan

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