Vehicle impact energy absorber

Details Vehicle impact energy absorber Vehicle impact energy absorber

1987-07-29

1988-11-22

Reeves, Robert B.

Vehicle fenders

Buffer or bumper type

Bumper having impact force absorbing means directly...

293102, 293135, 188134, 267139, B60R 1926, B60R 1936

Patent

active

047864591

ABSTRACT:
An energy absorber for preventing vehicle damage during low speed collisions comprising a threaded post for slideably mounting a vehicle bumper to a vehicle structure, a housing for tightly embracing a friction member, a friction member rotatably mounted in the housing, a sleeve engaging the threaded post which is responsive to the movement of the bumper for rotatably driving the friction member and a clutch for engaging the friction member with the sleeve. During a low speed vehicle impact, the inward displacement of the vehicle's bumper, with respect to the vehicle's structure, rotatably drives the friction member in the housing and the kinetic energy of the moving vehicle is absorbed by the work done in rotating the friction member in the housing. After the impact, the bumper is returned to its initial position by a spring.

REFERENCES:
patent: 3059727 (1962-10-01), Fuchs
patent: 3448840 (1969-06-01), Rosin
patent: 3718326 (1973-02-01), Ristau
patent: 3858863 (1975-01-01), Mazelsky
patent: 4524851 (1985-06-01), Sawano et al.

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