Patent ID: 6322145
Filing Date: 2001-11-27
Classification: A61G,Y10T

Abstract:
A method for adjusting the angle of a wheelchair seat, comprising the steps of:(a) providing a system for adjusting the angular position of the backrest of a wheelchair seat, the wheelchair seat having a bottom seat portion and a back seat portion, the system comprising:a hinge having:a first hinge bracket fixedly mounted to the bottom seat portion and a moving second hinge bracket fixedly mounted to the back seat portion, said first hinge bracket being hingedly connected with said second hinge bracket;an adjustment bolt having a head with an aperture, said adjustment bolt extending through said first hinge bracket;a threaded block hingedly mounted on said moving second hinge bracket, said adjustment bolt being engaged with said threaded block; andan adjustment tool comprising a handle and a prong, said prong having a head with a shape that is compatible with said aperture in said adjustment bolt;(b) inserting the head of the prong of the adjustment tool into the aperture of the adjustment bolt; and(c) rotating the adjustment tool to rotate the adjustment bolt, causing the moving second hinge bracket to rotate and the back seat portion of the wheelchair seat to change angle relative to the bottom seat portion.