Safety seat trajectories

Details Safety seat trajectories Safety seat trajectories

B - Operations, Transporting

60

N

B60N 2/42 (2006.01) B60N 2/427 (2006.01)

Patent

CA 2150323

A vehicle seat assembly (10) utilized in vehicles (12) to minimize injury to an occupant resulting from submarining thereof utilizes a movable seat (16) which increases the effective restraining force provided by the seat (16). The movement of the seat (16) is defined through a vertical travel trajectory and a rotational movement trajectory, both with respect to forward seat travel. A reference point (28) is defined on the seat following the vertical travel trajectory which is substantially zero or in a downward direction preventing movement in the upwardly vertical direction as the seat travels forward, and the rotational movement trajectory which is linear or concave of increasing angle during substantially the initial half of forward seat travel. The seat movement also is defined by moving the front seat side (26) a first vertical distance along a front path and moving the rear seat side (26) a second vertical distance less than the first vertical distance while preventing upward vertical movement of the rear seat side.

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