Abstract: A motorized walker/wheelchair having wheels, an A-frame which has a driven a leg and a rolling leg which join at a vertex. Rising from one of the legs there is a control handle assembly. A motor wheel, or optionally two motor wheels, are provided at the lower portion of the driven leg of the A-frame. A caster wheel extends from the bottom of the rolling leg. Provision is made for a seat which is secured at its rearward portion to the seat support spreader. Hand controls are provided to the handle support which in turn control the operation of at least one motor driven wheel, or optionally, to separate motors driving two wheels. The two legs, the driven leg and a rolling leg, are joined at a pivot point at their vertex.

Abstract: A baby walker having a chassis, a bracket table, and a lifting gear for elevating the bracket table relative to the chassis. The lifting gear includes two pairs of parallel links, each having one end pivotally attached by a shaft bin to the chassis and an opposite end pivotally attached by a shaft bin to the bracket table. Each of the pair of parallel links includes a first link, a second link, a secured wedge piece fixed onto the first link, a slide having a rod slot slidably affixed to the second link and a locking gear positioned between the first and second links so as to control a distance between the first and second links so as to control a height of the bracket table with respect to the chassis.