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ASSISTANCE CHAIR ASSEMBLY
专利权人:
Tuang-Hock Koh
发明人:
Tuang-Hock Koh
申请号:
US16194387
公开号:
US20200155388A1
申请日:
2018.11.18
申请国别(地区):
US
年份:
2020
代理人:
摘要:
An assistance chair assembly includes a base and a chair is positioned on the base. Two upright boards are perpendicularly connected to the top of the base, and two extension portions extend from the rear end of the base. The chair includes two front legs and two rear legs. The front legs each have a curve slots which allows the chair to be is pivotable about the bolts extending through the rear legs of the chair. The weight center of the chair is not moved beyond the two extensions portions of the base when the chair is pivoted toward the two extensions portions.
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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