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ELECTRICALLY POWERED WHEELCHAIR WITH AN ARMREST ADJUSTMENT ARRANGEMENT
专利权人:
发明人:
Häkan Bergman
申请号:
US15511671
公开号:
US20180177653A1
申请日:
2015.09.16
申请国别(地区):
US
年份:
2018
代理人:
摘要:
The present disclosure relates to an electrically powered wheelchair comprising a chassis, a seat frame, a seat frame tilt and lift system having a lifting member arranged to provide translational movement of the seat frame relative to the chassis, and a first arm (11) which in cooperation with the lifting member is arranged to tilt the seat frame relative to the chassis, an armrest assembly (19) pivotally coupled to the seat frame, and an armrest adjustment arrangement (17) comprising: a first force transmitting arrangement (21) having four pivot points (21-1, 21-4) defining the vertices of a first parallelogram, which first force transmitting arrangement (21) is pivotally coupled to the first arm (11) via a first pivot point (21-1) of the four pivot points defining the vertices of the first parallelogram, and pivotally coupled to the lifting member via a second pivot point of the four pivot points defining the vertices of the first parallelogram, and a second force transmitting arrangement (23) having four pivot points (23-1, 23-2, 23-3, 23-4) defining the vertices of a second parallelogram, which second force transmitting arrangement (23) is pivotally coupled to the first force transmitting arrangement (21) via a first pivot point (23-1) of the four pivot points defining the vertices of the second parallelogram, which second force transmitting arrangement (23) is pivotally coupled to the seat frame via a second pivot point (23-2) of the four pivot points defining the vertices of the second parallelogram, and which second force transmitting arrangement (23) is pivotally coupled to the armrest assembly (19).
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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