Chairs and seats – Crash seat – Bottom and back movable as unit in response to force
Patent
1996-02-09
1998-03-24
Nelson, Jr., Milton
Chairs and seats
Crash seat
Bottom and back movable as unit in response to force
297326, B60N 242
Patent
active
057304920
ABSTRACT:
A leg assembly for mounting passenger seats in transport vehicles especially configured to absorb energy, in the event of a survivable crash or other sudden deceleration. The seat legs deform in a controlled manner to prevent loads at its floor attachment points from exceeding the magnitude of allowable floor strength. The leg assembly includes a base member whose forward and rear ends attach to the floor, and a V-leg whose lower vertex pivots about an axis passing through the front of the base member in the event of a forward crash. The V-leg has a vertical member and a diagonal member. A load-limiting strut connects the rear end of the base member to an intermediate area on the diagonal member of the V-leg. A tension link connects the intermediate area of the V-leg and to the upper end of the vertical member of the V-leg. Elongation of the load-limiting strut allows the seat and legs to pitch forward at a predetermined inertial loading which, if exceeded substantially, would rip the seat loose from the floor. The tension link elongates at a predetermined load to distribute the loads within the seat.
REFERENCES:
patent: 2933127 (1960-04-01), Brewster
patent: 2959207 (1960-11-01), Brewster
patent: 3059966 (1962-10-01), Spielman
patent: 3603638 (1971-09-01), McGregor
patent: 4440441 (1984-04-01), Marrujo et al.
patent: 4523730 (1985-06-01), Martin
patent: 4718719 (1988-01-01), Brennan
patent: 4796837 (1989-01-01), Dowd
patent: 4861103 (1989-08-01), Vallee
patent: 4911381 (1990-03-01), Cannon et al.
patent: 5058829 (1991-10-01), Bentley
patent: 5069505 (1991-12-01), Amthor et al.
patent: 5152578 (1992-10-01), Kiguchi
patent: 5227979 (1993-07-01), Bales et al.
Lou Ken-An
Warrick James C.
Yaniv Gershon
Yuhas James
Jr. Milton Nelson
Simula Inc.
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