×

Infinitely variable seat back recliner

  • US 4,408,799 A
  • Filed: 06/25/1981
  • Issued: 10/11/1983
  • Est. Priority Date: 06/25/1981
  • Status: Expired due to Fees
First Claim
Patent Images

1. In a seat having a cushion and a back which are relatively angularly positionable about a hinge axis, an infinitely variable mechanism which, by means of an operating lever, relatively positions the back and cushion about the hinge axis to any angular position within a range of angular positions and which for any angular position to which the two have been positioned by the operating lever disallows the two from being further angularly displaced except by subsequent operation of the lever, said mechanism comprising wedge means operatively coupled between the back and the cushion comprising a pair of wedging members which, at any relative angular position between the back and cushion within said range, in response to application of an external torque to the back and cushion about the hinge axis other than via the operating lever, wedge together to disallow angular displacement between the back and cushion, and means operatively coupling the lever, the wedge means, the seat cushion and the seat back such that operation of the lever is effective to freely angularly position the back and cushion about the hinge axis without the two wedging members disallowing the relative rotation.

View all claims
  • 1 Assignment
Timeline View
Assignment View
    ×
    ×