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1. (WO1998052508) WHEEL CHAIR WITH AUXILIARY POWER
Latest bibliographic data on file with the International Bureau

Pub. No.: WO/1998/052508 International Application No.: PCT/JP1998/002183
Publication Date: 26.11.1998 International Filing Date: 18.05.1998
IPC:
A61G 5/04 (2006.01) ,B60L 11/18 (2006.01)
A HUMAN NECESSITIES
61
MEDICAL OR VETERINARY SCIENCE; HYGIENE
G
TRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
5
Chairs or personal conveyances specially adapted for patients or disabled persons, e.g. wheelchairs
04
motor-driven
B PERFORMING OPERATIONS; TRANSPORTING
60
VEHICLES IN GENERAL
L
PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
11
Electric propulsion with power supplied within the vehicle
18
using power supplied from primary cells, secondary cells, or fuel cells
Applicants:
YAMAHA HATSUDOKI KABUSHIKI KAISHA [JP/JP]; 2500, Shingai Iwata-shi Shizuoka 438-8501, JP (AllExceptUS)
OGATA, Hiroaki [JP/JP]; JP (UsOnly)
TOKURA, Kenji [JP/JP]; JP (UsOnly)
Inventors:
OGATA, Hiroaki; JP
TOKURA, Kenji; JP
Agent:
YAMASHITA, Ryoichi; Room 209 Ale Plaza Toyamadai 1-5, Toyama 1-chome Shinjuku-ku Tokyo 162-0052, JP
Priority Data:
9/12854119.05.1997JP
Title (EN) WHEEL CHAIR WITH AUXILIARY POWER
(FR) FAUTEUIL ROULANT A ENERGIE AUXILIAIRE
Abstract:
(EN) A wheel chair (1) with an auxiliary power which comprises an electric motor (32), a potentiometer (27) as a means for detecting human power exerted on a wheel (2), and a controller (31) as a means for controlling the electric motor (32) in accordance with the detected human power, and in which an auxiliary power corresponding to a magnitude of the human power is exerted on the wheel (2) to rotatingly drive it, wherein a time attenuation factor of the auxiliary power is preset to be inversely proportional to the human power. Since a coasting amount of the chair (1) is limited to be smaller than, for example, feeble movements in a room, it is possible for the chair to ensure small movements with a sharp turn in the room and an adequate coasting in outdoor travelling to enable comfortable travelling on a flat ground and easy climbing of a steeply sloping road with reduced occupant's physical load.
(FR) L'invention concerne un fauteuil roulant (1) à énergie auxiliaire comportant un moteur électrique (32), un potentiomètre (27) permettant de détecter une force humaine exercée sur une roue (2), et un régulateur (31) permettant de réguler le moteur électrique (32) en fonction de la force humaine détectée. Dans ce fauteuil roulant, une énergie auxiliaire correspondant à l'intensité de la force humaine s'exerce sur la roue (2) pour l'entraîner en rotation, un facteur d'atténuation temporel de l'énergie auxiliaire étant préréglé de manière à être inversement proportionnel à la force humaine. Puisque la vitesse de marche par inertie du fauteuil (1) est limitée de manière à être inférieure, par exemple, à de faibles déplacements à l'intérieur d'une pièce, ce fauteuil est en mesure d'assurer de petits déplacements avec un virage serré dans la pièce, et une marche par inertie suffisante lors des déplacements à l'extérieur, permettant ainsi des déplacements confortables sur un sol plat et le gravissement aisé d'une route à forte pente avec un effort physique réduit de l'occupant.
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Designated States: US
European Patent Office (CY, DE, DK, FR, GB, NL, SE)
Publication Language: Japanese (JA)
Filing Language: Japanese (JA)
Also published as:
EP0925771US6230831JP11342159