Wheel chair arrangement
First Claim
Patent Images
1. A wheel chair arrangement comprising:
- a supporting frame;
means on said frame for seating a person in the wheel chair;
wheel means connected to said frame for moving said frame;
a back rest carried by said frame;
actuatable means linked to said back rest for retracting said back rest when actuated to a retracted position from a support position in which said back rest can support the back of a person seated in the wheel chair;
means for reducing substantially the space occupied by said back rest while said back rest is retracted from said support position to said retracted position; and
means for returning said back rest from a retracted position to said support position.
1 Assignment
0 Petitions
Accused Products
Abstract
A wheel chair with a retractable back rest, and a seat which may be uncovered to expose an opening that enables a patient in the wheel chair to use a toilet while remaining seated in the wheel chair. By actuating a switching arrangement, the patient may raise or lower the back rest to enable the person to be transferred with ease to a bed. A motor operated device may be actuated by the switching arrangement for uncovering an opening in the seat of the wheel chair and the latter may be wheeled directly over a conventional toilet bowl by motors operated selectively through the switching arrangement actuatable by the patient.
34 Citations
15 Claims
-
1. A wheel chair arrangement comprising:
- a supporting frame;
means on said frame for seating a person in the wheel chair;
wheel means connected to said frame for moving said frame;
a back rest carried by said frame;
actuatable means linked to said back rest for retracting said back rest when actuated to a retracted position from a support position in which said back rest can support the back of a person seated in the wheel chair;
means for reducing substantially the space occupied by said back rest while said back rest is retracted from said support position to said retracted position; and
means for returning said back rest from a retracted position to said support position. - View Dependent Claims (2, 3, 4, 5, 6, 7)
- a supporting frame;
-
8. A wheel chair arrangement comprising:
- a supporting frame;
means on said frame for seating a person in the wheel chair, wheel means connected to said frame for moving said frame;
a back rest carried by said frame;
actuatable means linked to said back rest for retracting said back rest when actuated to a retracted position from a support position in which said back rest can support the back of a person seated in the wheel chair; and
means for returning said back rest from a retracted position to said support position;
said back rest comprising roller means with a sheet strip of material wound thereon, a portion of said sheet extending along the area of the back rest and held by said frame for supporting the back of a person seated in said wheel chair, movable bearing means for supporting said roller means, said movable bearing means being connected to said retracting means, and means for rotating said roller means;
said roller means being retracted and rotated for retracting said back rest. - View Dependent Claims (9, 10, 11)
- a supporting frame;
-
12. A wheel chair arrangement comprising:
- a supporting frame;
means on said frame for seating a person in the wheel chair;
wheel means connected to said frame for moving said frame;
a back rest carried by said frame;
actuatable means linked to said back rest for retracting said back rest when actuated to a retracted position from a support position in which said back rest can support the back of a person seated in the wheel chair; and
means for returning said back rest from a retracted position to said support position;
a displaceable seat member on said seating means and having two adjacent portions, one portion having an opening therethrough, and the other portion being free of an opening;
roller means for winding thereon said displaceable seat member, said displaceable seat member comprising sheet strip material. - View Dependent Claims (13, 14)
- a supporting frame;
-
15. A wheel chair arrangement comprising:
- a supporting frame;
means on said frame for seating a person in the wheel chair;
wheel means connected to said frame for moving said frame;
a back rest carried by said frame;
actuatable means linked to said back rest for retracting said back rest when actuated to a retracted position from a support position in which said back rest can support the back of a person seated in the wheel chair; and
means for returning said back rest from a retracted position to said support position;
arm rest means connected to said back rest and movable with said back rest;
said back rest comprising first roller means with strip sheet material wound thereon;
movable bearing means supporting said first roller means, one end of said strip sheet material being connected to said frame;
means for urging said first roller means in a predetermined direction of rotation for maintaining taut said strip sheet of material when in said support position;
telescopic means for carring said first roller means, said telescopic means being retracted for retracting said back rest;
first motor means connected to said telescopic means for moving said first roller means between said support position and said retracted position, said frame having a predetermined width and height for wheeling said wheel chair directly over a toilet bowl;
a displaceable seat member on said seating means and having two adjacent portions, one portion having an opening therethrough, and the other portion being free of openings;
second roller means for winding thereon said displaceable seat member, said displaceable seat member comprising strip sheet material;
said second roller means comprising two rollers on opposite sides of said wheel chair, one of said rollers being urged in a predetermined direction of rotation for maintaining taut said displaceable seat member over the seating area of said wheel chair;
second motor means connected to said roller means for displacing said seat member;
third motor means connected to said wheel means for moving said wheel chair by turning said wheel means;
means for selectively actuating said third motor means for turning said wheel chair in predetermined directions; and
means for actuating selectively said first and second motor means.
- a supporting frame;
Specification