Patent ID: 7131154

Claim:
A mobile transport device adapted to be transformed from a first position suitable for supporting a seated patient to a second position suitable for supporting a reclining patient at the same height as a patient bed comprising: a pair of spaced-apart side frames; a back frame including a pair of spaced-apart support members each having an axially off-set extension located at a bottom end; a seat frame pivotally supported upon said pair of spaced-apart side frames, said seat frame including a pair of spaced-apart telescoping beams arranged in substantially parallel relation to said pair of spaced-apart side frames, each of said telescoping beams having a front end and a rear end and include a hollow support tube having a slide tube supported within by a tubular journal that is located within an open end of said hollow support tube, said hollow support tube including a transverse pivot hole adjacent to a front end and spaced-away from a back end such that said hollow slide tube has an outer diameter that is smaller than an internal diameter of both said tubular journal and said hollow support tube, while said tubular journal has an outer diameter that is slightly smaller than an internal diameter of said hollow support tube so that each of said telescoping beams are capable of changing length wherein each of said front ends is pivotally mounted upon a portion of an adjacent side frame, and each of said rear ends is pivotally mounted upon a portion of a respective one of said axially off-set extensions; a pair of spaced-apart lower link beams each having a front end and a rear end that are each pivotally engaged with a respective one of said telescoping beams by a front toggle beam and a rear toggle beam; and a powered drive operatively supported between said pair of spaced-apart side frames and operatively engaged with said seat frame so as to move said seat frame and said back frame between (i) said first position wherein said seat frame and said back frame are oriented so as to be suitable for supporting a seated patient, wherein said telescoping beam is at its shortest length; and (ii) said second position wherein said seat frame and said back frame are oriented so as to be suitable for supporting a reclining patient at the same height as a patient bed wherein said telescoping beam is at its longest length.