Chairs and seats – Crash seat – Force-absorbing means incorporated into back
Patent
1994-12-29
1995-10-03
Crown, Peter R.
Chairs and seats
Crash seat
Force-absorbing means incorporated into back
188374, 29737811, 2972161, B60N 242
Patent
active
054546222
ABSTRACT:
A vehicle seat having a backrest part hingedly connected to the frame so as to break forwardly about the hinged connection from a normal substantially upright position includes a braking device for preventing forward movement of the backrest part about the hinged connection under forces equivalent to less than a predetermined maximum forward force applied to the top of the backrest part but to permit forward movement of the backrest part under greater forces against a reaction provided by the braking device. The backrest part is preferably so constructed that no significant force may be applied to it by the knees of a passenger in a seat immediately behind. For example it may have an aperture in the region which will be immediately in front of the knees of a passenger occupying a seat immediately behind. The aperture may be covered on the front and/or back of the backrest part by light surface element, capable of deformation, detachment or fracture under impact from the knees of a passenger to enable them to pass through the aperture without applying significant force to the backrest part.
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patent: 5248271 (1993-09-01), Boisset
Crown Peter R.
Flight Equipment & Engineering Limited
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