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1. WO2006054608 - ELECTRIC UNIT FOR WHEELCHAIR AND ELECTRIC WHEELCHAIR USING THE SAME

Publication Number WO/2006/054608
Publication Date 26.05.2006
International Application No. PCT/JP2005/021051
International Filing Date 16.11.2005
IPC
A61G 5/04 2006.1
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
GTRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
5Chairs or personal conveyances specially adapted for patients or disabled persons, e.g. wheelchairs
04motor-driven
CPC
A61G 2203/14
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
GTRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS
2203General characteristics of devices
10characterised by specific control means, e.g. for adjustment or steering
14Joysticks
A61G 5/045
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
GTRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS
5Chairs or personal conveyances specially adapted for patients or disabled persons, e.g. wheelchairs
04motor-driven
041having a specific drive-type
045Rear wheel drive
A61G 5/1032
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
GTRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS
5Chairs or personal conveyances specially adapted for patients or disabled persons, e.g. wheelchairs
10Parts, details or accessories
1005Wheelchairs having brakes
1032engaging an element of the drive or transmission, e.g. drive belt, electrodynamic brake
A61G 5/1054
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
GTRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS
5Chairs or personal conveyances specially adapted for patients or disabled persons, e.g. wheelchairs
10Parts, details or accessories
1054Large wheels, e.g. higher than the seat portion
B62B 5/04
BPERFORMING OPERATIONS; TRANSPORTING
62LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
BHAND-PROPELLED VEHICLES, e.g. HAND CARTS OR PERAMBULATORS; SLEDGES
5Accessories or details specially adapted for hand carts
04Braking mechanisms; Locking devices against movement
Applicants
  • サンスター技研株式会社 SUNSTAR GIKEN KABUSHIKI KAISHA [JP]/[JP] (AllExceptUS)
  • 吉家 彰人 YOSHIIE, Akihito [JP]/[JP] (UsOnly)
Inventors
  • 吉家 彰人 YOSHIIE, Akihito
Agents
  • 社本 一夫 SHAMOTO, Ichio
Priority Data
2004-33507418.11.2004JP
Publication Language Japanese (ja)
Filing Language Japanese (JA)
Designated States
Title
(EN) ELECTRIC UNIT FOR WHEELCHAIR AND ELECTRIC WHEELCHAIR USING THE SAME
(FR) UNITE ELECTRIQUE POUR FAUTEUIL ROULANT ET FAUTEUIL ROULANT ELECTRIQUE L'UTILISANT
(JA) 車椅子用電動ユニット及びこれを用いた電動車椅子
Abstract
(EN) Simpler mechanisms of a brake and a clutch, capable of efficiently operating electrically and mechanically in an electric unit for a wheelchair. A clutch mechanism for controlling connection and disconnection between an electric motor (10) and a drive wheel (8) is switched, depending on the rotational position of a worm wheel (38), either to a position at which a pin (21) is in contact with a plate surface of the worm wheel (38) to separate a key member (22) for drive and a groove member (26) or to a position at which the contact is released to cause the key member (22) for drive to be moved by a spring (24) for drive, making the key member (22) fitted into the groove member (26). A brake mechanism for controlling connection and disconnection between the electric motor (10) and a brake gear (28) is also switched, depending on the rotational position of a worm wheel (38), either to a position at which a pin (36) is in contact with the plate surface of the worm wheel (38) to separate a key member (30) for braking and a groove member (33) or to a position at which the contact is released to cause the key member (30) for braking to be moved by a spring (34) for braking, making the key member (30) fitted into the groove member (33).
(FR) L'invention concerne des mécanismes plus simples de frein et d'embrayage, pouvant fonctionner efficacement, électriquement et mécaniquement, dans une unité électrique destinée à un fauteuil roulant. Un mécanisme d'embrayage permettant de commander la connexion et la déconnexion entre un moteur électrique (10) et une roue motrice (8) est commuté en fonction de la position de rotation d'une roue à vis sans fin (38), soit vers une position à laquelle une broche (21) est en contact avec une surface de plaque de la roue à vis sans fin (38) afin de séparer un élément de clavette (22) d'entraînement d'un élément de rainure (26), soit vers une position à laquelle le contact est libéré afin de déplacer l'élément de clavette (22) d'entraînement à l'aide d'un ressort (24) en vue d'un entraînement, en ajustant l'élément de clavette (22) dans l'élément de rainure (26). Un mécanisme de frein destiné à commander la connexion et la déconnexion entre le moteur électrique (10) et un organe de freinage (28) est également commuté, en fonction de la position de rotation de la roue à vis sans fin (38), soit vers une position à laquelle une broche (36) est en contact avec la surface de plaque de la roue à vis sans fin (38), afin de séparer un élément de clavette (30) de freinage d'un élément de rainure (33), soit vers une position à laquelle le contact est libéré afin de déplacer l'élément de clavette (30) de freinage à l'aide d'un ressort (34) afin de freiner, en ajustant l'élément de clavette (30) dans l'élément de rainure (33).
(JA)  車椅子用電動ユニットで電気的及び機械的に効率的に動作可能なブレーキ及びクラッチのより簡単な機構を提供する。  電動モーター10と駆動輪8との連結及び非連結を制御するクラッチ機構は、ウォームホイール38の回転位置に応じて、その板面にピン21が当接して駆動用のキー部材22及び溝部材26が離れたか、又は、当該当接が解除されて駆動用キー部材22が駆動用スプリング24により移動して駆動用溝部材26と嵌合するかのいずれかで実現される。電動モーター10とブレーキギア28との連結及び非連結を制御するブレーキ機構も、ウォームホイール38の回転位置に応じて、その板面にピン36が当接してブレーキ用のキー部材30及び溝部材33が離れたか、又は、当該当接が解除されてブレーキ用キー部材30がスプリング34により移動することでブレーキ用溝部材33と嵌合するかのいずれかで実現される。                                                                                 
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