# US 9,039,028 B2 · Nursing wheelchair

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- Number: US 9,039,028 B2
- Document ID: US9039028B2
- Status: Granted
- Kind: B2
- Application number: 13/879,766
- Filed: 2011-09-12
- Published: 2013-10-10
- Granted: 2015-05-26
- Earliest claimed: 2010-09-13
- Assignees: Idea System Co., Ltd.
- Applicants: Mutsumi Kobayashi; Hiroshi Kobayashi; Hiroshi Miyazawa
- Inventors: Mutsumi Kobayashi; Hiroshi Kobayashi; Hiroshi Miyazawa
- Web page: https://patentgrep.com/patent/US9039028B2

## CPC

- A61G 5/08: foldable
- A61G 5/006: {convertible to stretchers or beds}
- A61G 5/0875: {dismountable, e.g. where the wheelchair can be disassembled for transportation or storage}
- A61G 5/1056: {Arrangements for adjusting the seat}
- A61G 5/128: {for feet}
- A61G 7/1032: {Endless belts}
- A61G 7/1046: {Mobile bases, e.g. having wheels}
- A61G 5/1002: {with toilet facilities (room closets, night chairs A47K11/04)}
- A61G 5/1067: {adjusting the backrest relative to the seat portion}
- A61G 13/125: {Ankles or feet}
- A61G: TRANSPORT, PERSONAL CONVEYANCES OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS (appliances for aiding patients or disabled persons to walk A61H3/00); OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES (embalming corpses A01N1/00)

## Abstract

The present invention addresses the problem of providing a nursing wheelchair, comprising a seat member which deploys on a frame body to form a seat. The nursing wheelchair readily allows transfer of a person receiving care, and is lightweight and easy to operate. A nursing wheelchair (1) comprises seat members (7a, 7b) which deploy on seat support frames (14a, 14b) constituting part of a frame body (2) in order to form a seat.

## Claims

### Claim 1

A nursing wheelchair comprising:
a seat configured to be supported demountably or rotatably by a frame member, wherein the frame member including a seat supporting frame and a leg frame to be coupled to a front end portion of the seat supporting frame, the seat supporting frame and the leg frame being coupled so as to form a substantially angular C-shape in side view, the seat including one or a plurality of foldable and deployable seat surface members configured to form a seat surface by being deployed over the seat supporting frame, the seat surface member including a first seat surface member at a front position and a second seat surface member at a rear position when the seat is in a deployed position, and the first seat surface member and the second seat surface member being coupled so as to be foldable and deployable;
a tilting mechanism configured to tilt the second seat surface member, wherein the first and second seat surface members are deployed over the seat supporting frame by moving a distal end of the first seat surface member forward along the seat supporting frame by tilting the second seat surface member by the tilting mechanism;
the tilting mechanism is provided on a seat backrest mechanism, and the seat backrest mechanism is detachable from and rotatable with respect to a rear end portion of the frame member, such that when the seat backrest mechanism is detached or rotated with respect to the rear end portion of the frame member the tilting mechanism is detached or rotated, respectively, to accompany with the seat backrest mechanism, and
a distal end of the first seat surface member is slidably supported by the seat supporting frame when the seat and seat backrest mechanism is fixed to a predetermined position at a rear end portion of the frame member.

### Claim 2 (depends on 1)

The nursing wheelchair according to claim 1, wherein the tilting mechanism includes a rotary shaft member provided on the second seat surface member and a tilting lever fixed to the rotary shaft member.

### Claim 3 (depends on 2)

The nursing wheelchair according to claim 2, wherein the length of the first seat surface member in the short direction corresponding to the fore-and-aft direction when the seat is in a deployed position is longer than that of the second seat surface member.

### Claim 4 (depends on 3)

The nursing wheelchair according to claim 3, wherein the first seat surface member includes a sliding contact portion configured to come into sliding contact with the seat supporting frame at the time of folding and deployment.

### Claim 5 (depends on 1)

The nursing wheelchair according to claim 1, wherein the length of the first seat surface member in the short direction corresponding to the fore-and-aft direction when the seat is in a deployed position is longer than that of the second seat surface member.

### Claim 6 (depends on 5)

The nursing wheelchair according to claim 5, wherein the first seat surface member includes a sliding contact portion configured to come into sliding contact with the seat supporting frame at the time of folding and deployment.

### Claim 7 (depends on 1)

The nursing wheelchair according to claim 1, wherein the first seat surface member includes a sliding contact portion configured to come into sliding contact with the seat supporting frame at the time of folding and deployment.

### Claim 8 (depends on 2)

The nursing wheelchair according to claim 2, wherein the first seat surface member includes a sliding contact portion configured to come into sliding contact with the seat supporting frame at the time of folding and deployment.