Walker

Claim 1

A walker comprising: a frame structure having handle portions to be gripped by the two hands of a user, and having a plurality of downwardly projecting support legs; individual ones of said legs including a lower removable extension assembly having a lower part and an upper part in the form of a tube telescopically interfitting with said lower part for longitudinal essentially vertical adjustment of the lower part relative to the upper part, a detent element carried by one of said parts and releasably receivable within any of a plurality of detent openings in the other part to releasably retain the parts in differently adjusted positions providing a coarse length adjustment for the individual legs, and a screw having a lower portion secured within an upper portion of said second part in fixed relation thereto and having a threaded shank projecting upwardly beyond said second part; said individual legs also including a third part above said removable extension assembly, and a nut received within a lower portion of said third part in fixed relation thereto and threadedly and adjustably engaged with said shank of said screw for relative rotary adjusting movement about a generally vertical axis and providing a threaded adjustment between said second and third parts longitudinally of the individual leg lengths finer than and between the coarse settings of the detent elements.