Fold-up wheelchair and elevating apparatus of the same

Details Fold-up wheelchair and elevating apparatus of the same Fold-up wheelchair and elevating apparatus of the same

2005-06-21

2005-06-21

Barfield, Anthony D. (Department: 3636)

Chairs and seats

Movable bottom

Tiltable

C297SDIG004, C297S354130, C280S650000, C005S620000

Reexamination Certificate

active

06908154

ABSTRACT:
For easier care of a bed-ridden patient, a fold-up wheelchair comprises a chair main body (2) having a back rest, the chair main body being foldable upward and downward; rear frames (6) of the chair main body (2); rear legs (15) extending lower rearward, the rear legs being connected to a vertically middle portion of the rear frames (6) so as to be rotatable forward and rearward; extensible working bodies (16) connected to the rear legs (15) and upper end portions of the rear frames (6) so as to be rotatable forward and backward; a motor (17) operating the respective working bodies (16) so as to expand and contract synchronously, the motor being provided in an upper end portion of the working bodies (16); guides (24) arranged in right and left sides of the chair main body (2) so as to extend forward and backward, front and rear end potions thereof being supported by a pin; a rod (25) fitted to the guide (24) so as to be slidable forward and backward, a rear end portion of the rod (25) being connected to the rear legs (15) in such a manner as to be rotatable forward and backward; and a front wheel (26) and a rear wheel (27) respectively provided in a front lower portion of the chair main body (2) and a lower end portion of the rear legs (15).

REFERENCES:
patent: 4809804 (1989-03-01), Houston et al.
patent: 4834411 (1989-05-01), Willey et al.
patent: 6173461 (2001-01-01), Alexander
patent: 6393641 (2002-05-01), Hensley
patent: 6428103 (2002-08-01), Hong
patent: 2001-145670 (2001-05-01), None
patent: 2002-177334 (2002-06-01), None
patent: 2002-369864 (2002-12-01), None

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