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US 2006/0185089 A1Published application
Mobile transport device
AssigneeWood Lark Circle, Inc.
InventorsDavid Davis, Robert Novack
Life of this patent
Estimating the term…
Abstract
A convertible wheeled chair is easily changed by an attendant into a gurney of the same height as a patient bed. During the process of transferring a patient from an upright position to a reclining position, convertible wheeled chair shifts the center of gravity of the patient rearwardly, and therefore does not give the patient a sensation of sliding from the chair.
Claims22
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 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 being 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.
4 more elements
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 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 wherein each of said axial off-set extensions extends outwardly at an angle of between about 5° and about 12°;
- a seat frame pivotally supported upon said pair of spaced-apart side frames, said seat frame including a pair of spaced-apart telescoping beams comprising an assembly including 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, and 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 being 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.
4 more elements
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 reclining patient at the same height as a patient bed comprising:
- a pair of spaced-apart side frames pivotally supported upon a wheeled transport frame;
- a back frame including a pair of spaced-apart support members each having an axially off-set extension located at a bottom end wherein each of said axial off-set extensions extends outwardly at an angle of between about 5° and about 12°;
- a seat frame pivotally supported upon said pair of spaced-apart side frames, said seat frame including a pair of spaced-apart telescoping beams comprising an assembly including 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, and 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 being 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.;
4 more elements
Dependencies are inferred from the claim text.