A seat assembly for an occupant of a vehicle possibly subjected to upsetting forces generally consisting of a base member mountable on a body portion of the vehicle, an occupant seat means for restraining an occupant positioned on the seat, means operatively interconnecting the base member and the seat for guiding the seat along a line of travel when the seat is displaced relative to the base member, means operatively interconnecting the base member and the seat for dampening a force imposed on the seat in first direction along the line of travel and means operatively interconnecting the base member and the seat for dampening a force imposed on the seat in a second direction along the line of travel.
1. A seat assembly for an occupant of a vehicle possibly subjected to upsetting forces, comprising:
a base member mountable on a body portion of said vehicle;
first means mounted directly on said base member for dampening forces applied along a line of travel in a first direction;
a seat mounted directly on top of said first means;
second means spaced from said first means directly interconnecting said base member and said seat for dampening forces applied along said line of travel in a second direction opposite to said first direction; and
third means of guiding said seat along said line of travel including a set of guide tracks disposed on said base member and a set of rollers disposed on said seat rideable along said guide tracks.
2. A seat assembly according to claim 1 wherein said body of said vehicle includes a fourth guiding means and said member is supported on and displaceable along said fourth guiding means, and including means for detachably locking said base member at selected location along said fourth guiding means.
3. A seat assembly according to claim 1 including means for detachably securing an occupant in said seat.
4. A seat assembly according to claim 1 wherein said first dampening means comprises an air spring.
5. A seat assembly according to claim 1 wherein said second dampening means comprises at least one shock absorber operatively directly interconnecting said based member and said seat.