Reduced head pad seat

Details Reduced head pad seat Reduced head pad seat

1995-01-11

1999-10-05

Barefoot, Galen L.

Aeronautics and astronautics

Aircraft structure

Fuselage and body construction

244122B, B64D 1106

Patent

active

059610735

ABSTRACT:
A seat assembly for commercial aircraft or other vehicles has features that reduce head excursion in high impact events such as crashes or collisions. These include the use of low-elongation seatbelt material and high seatbelt anchor location. Another feature which reduces head excursion is an articulating seatpan. The bottom seat cushion is guided by rollers in tracks to follow a prescribed motion under forward inertial load. As the inertial load is applied, the seatpan travels forward and tilts upward. This reduces forward pelvic rotation which, in turn, reduces head excursion. Other features which limit pelvic rotation are the use of dynamically stiff foam for the seat cushion, and a relatively steep initial cushion angle/cushion contour.

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patent: 3832002 (1974-08-01), Eggert et al.
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patent: 5022707 (1991-06-01), Beauvais et al.
patent: 5076608 (1991-12-01), Shimose
patent: 5125598 (1992-06-01), Fox
patent: 5244252 (1993-09-01), Serber
patent: 5320308 (1994-06-01), Bilezikjian et al.

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