Seat structure with adjustable suspension
First Claim
1. An adjustable resilient supported seat comprising, in combination, a frame having a front rail and side rails having rear portions, said frame including a back support mounted upon said side rails'"'"' rear portions, a seat bottom pan having a front portion and a rear portion, hinge means attaching said pan front portion to said frame front rail permitting said pan rear portion to be vertically displaceable with respect to said frame side rails'"'"' rear portions, pan rear portion support means mounted on said frame, springs mounted upon said frame producing a resilient biasing force operatively associated with and supporting said pan rear portion support means and adjustment means mounted on said frame selectively adjusting the location of application of said resilient biasing force with respect to said hinge means and said pan rear portion support means to adjust the magnitude of said resilient biasing force upon said pan rear portion support means to vary the weight bearing characteristics of said seat bottom pan.
15 Assignments
0 Petitions
Accused Products
Abstract
A seat particularly suitable for industrial applications having a hinged bottom supported upon springs for adjustably resiliently supporting the occupant to absorb vibrations and impact. The springs impose a resilient biasing force upon the seat bottom structure and a conveniently located adjusting knob selectively positions the location of the application of the biasing force with respect to the seat bottom hinge. Accordingly, by adjusting the location of application of the biasing force, the suspension characteristics of the seat bottom may be controlled and preselected with minimum manual exertion and no spring pre-tensioning or pre-compression is required to vary the suspension characteristics.
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Citations
15 Claims
- 1. An adjustable resilient supported seat comprising, in combination, a frame having a front rail and side rails having rear portions, said frame including a back support mounted upon said side rails'"'"' rear portions, a seat bottom pan having a front portion and a rear portion, hinge means attaching said pan front portion to said frame front rail permitting said pan rear portion to be vertically displaceable with respect to said frame side rails'"'"' rear portions, pan rear portion support means mounted on said frame, springs mounted upon said frame producing a resilient biasing force operatively associated with and supporting said pan rear portion support means and adjustment means mounted on said frame selectively adjusting the location of application of said resilient biasing force with respect to said hinge means and said pan rear portion support means to adjust the magnitude of said resilient biasing force upon said pan rear portion support means to vary the weight bearing characteristics of said seat bottom pan.
- 12. An adjustable resiliently supported seat comprising, in combination, a frame, a seat bottom, a seat bottom hinge mounting said seat bottom upon said frame whereby a portion of said seat bottom spaced from said hinge is capable of vertical displacement, spring means mounted on said frame producing a resilient biasing force imposed upon said seat bottom at a location remote from said hinge, and slidable adjustment means mounted upon said frame selectively varying the effective distance of application of said resilient biasing force from said seat bottom hinge to adjust the weight bearing characteristics of said seat bottom.
Specification