Patent ID: 6341671
Filing Date: 2002-01-29
Classification: A61G,B60T

Abstract:
A wheelchair wheel lock for a wheelchair having a frame rotationally attaching on an axle wheels having wheel hubs, the wheel lock comprising:an annular disk, attaching the hub of a wheelchair wheel at a position centered about the wheelchair axle between the wheelchair wheel and the wheelchair frame for rotation with the wheelchair wheel by at least one attachment feature, having and presenting circumferentially arrayed in its annulus a multiplicity of apertures of closed circumference that are suitably mechanically engaged so as to prevent rotation of the disk and of the wheelchair wheel to which the annular disk is affixed; and a moveable member, mounted to the frame of the wheelchair proximate the annular disk and having a distal end of complimentary configuration to the apertures of the disk, moveable under and by force provided by an occupant of the wheelchair to variously extend transversely towards, and away from, a plane of the disk; wherein at a first time the transversely-moving moveable member extends towards the annular disk and into an aperture of the annular disk so as there, at an extended position, to prevent rotation of the annular disk and of the wheelchair wheel; and wherein at a second time the transversely-moving moveable member withdraws away from any contact with the annular disk and from any extension into any aperture so as to there, at a withdrawn position, permit rotation of the annular disk and of the wheelchair wheel.