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WHEELCHAIR, WHEELCHAIR APPARATUS AND WHEELCHAIR CARE SERVICE NETWORK SYSTEM
专利权人:
JENG HAN LI
发明人:
JENG HAN LI,YU HSIEN CHIU,YU WEI HUNG
申请号:
US13453126
公开号:
US20120203139A1
申请日:
2012.04.23
申请国别(地区):
US
年份:
2012
代理人:
摘要:
A wheelchair includes a seat, one or more wheels and a seat weight sensing mechanism. The wheel includes a brake for stopping the wheel. The seat weight sensing mechanism is placed below the seat and is connected to the brake. When the seat is loaded by a weight more than a predetermined value, the seat weight sensing mechanism releases the brake to free the wheel. When the seat is not loaded by a weight more than a predetermined value, the brake stops the wheel.
来源网站:
中国工程科技知识中心
来源网址:
http://www.ckcest.cn/home/

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