Patent ID: 7837273
Filing Date: 2010-11-23
Classification: B60N,B63B

Abstract:
1. A vehicle seat suspension comprising: a seat base having a pair of spaced apart retainers; a beam spring carried by the retainers; a seat occupant load supporting suspension webbing of a flexible load bearing fabric carried by the beam spring and underlying a seat occupant supporting surface of the vehicle seat; a bearing carried by a portion of the beam spring received in each one of the retainers, each bearing disposed between the beam spring and an adjacent portion of the seat base; wherein the webbing is pre-tensioned; wherein each one of the retainers comprises (a) a land formed by part of the seat base on which a portion of the beam spring adjacent a corresponding end of the beam spring is supported, and (b) a retainer bar or finger formed by part of the base that overlies a portion of the beam spring at or adjacent the land; wherein the land of one of the retainers is spaced from the land of the other one of the retainers defining a recess therebetween enabling deflection of a portion of the beam spring unsupported by the lands during suspension operation; and wherein the beam spring and bearings are configured to provide a plurality of stages of deflection during suspension operation.