AIRCRAFT SEAT ENERGY ABSORBING DEVICE FOR OCCUPANT RESTRAINT

摘要

An energy absorbing device for a seat containing an occupant includes a seat frame with legs, a seat pan, and a back member. Attached to the seat is an energy absorbing device fixed to the back member of the seat frame. The energy absorbing device includes an engagement portion fixing the energy absorbing device to the seat frame and an energy absorbing extension having a fixed end integral with the engagement portion, and a protruding end extending toward the seat pan. The seat has a seat belt for the occupant and the belt is attached to a belt support device which extends parallel to the energy absorbing extension. When the occupant is using the seatbelt and the seat undergoes lateral forces, the energy absorbing extension undergoes deformation, and when the occupant is not using the seatbelt and the seat undergoes lateral forces, the energy absorbing extension does not undergo deformation.

主权项

1. An energy absorbing device for a seat containing an occupant, comprising:
a seat frame having an upper surface and a lower surface; a plurality of leg members attached to the lower surface of the seat frame; a seat pan attached to the upper surface of the seat frame; a back member attached to the upper surface of the seat frame and approximately perpendicular to the seat pan; an energy absorbing device fixed approximate to where the back member attaches to the seat frame, comprising:
an engagement portion fixing the energy absorbing device to at least one of the seat frame and the back member; andan energy absorbing extension having a fixed end integral with the engagement portion, and a protruding end extending toward the seat pan; and a belt support device comprising:
a first end fixed to the engagement portion; anda second end, approximately opposite the first end, engaging a seatbelt to support the occupant, and extends parallel to the energy absorbing extension; wherein when the occupant is using the seatbelt and the seat undergoes lateral forces, the energy absorbing extension undergoes deformation; and wherein when the occupant is not using the seatbelt and the seat undergoes lateral forces, the energy absorbing extension does not undergo deformation.