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1. 发明授权

US06419319B1 Wheel device and chair equipped with same 失效
标题翻译：车轮装置和椅子配备相同
公开(公告)号：US06419319B1
公开(公告)日：2002-07-16
申请号：US09425403
申请日：1999-10-22
申请人： Takumi Sakurai
发明人： Takumi Sakurai
IPC分类号： A47C112
CPC分类号： A47C7/006 , A47C7/004 , B60B33/001 , B60B33/0021 , B60B33/0028 , B60B33/0042 , B60B33/0049 , B60B33/0057 , B60B33/0068 , B60B33/0073 , B60B33/063
摘要： A wheel device and a chair equipped with the same which do not require replacement of a conventional retractable wheel, but instead enable the wheel to be placed in the operating state at all times, as required. The wheel device comprises a wheel and a holder member for holding the wheel. An urging member is arranged between the wheel and the holder member to constantly urge the wheel to be projected in an operable position. A retraction permitting member is adapted to permit the wheel to be retracted while overcoming the urging force of the urging member when a load is exerted in the direction of gravity on a member on which the wheel is mounted. The retraction permitting member includes a setting mechanism for setting the wheel to be in an un-retractable state. The chair is equipped with the wheel devices mounted to a leg portion thereof.
摘要翻译：一种轮装置和配备有该装置的椅子，其不需要更换常规的可缩回轮，而是可以根据需要一直将轮置于操作状态。车轮装置包括车轮和用于保持车轮的保持件。推动构件布置在车轮和保持器构件之间以不断地将车轮推向可操作位置。缩回允许构件适于在将负载沿重力方向施加在安装有车轮的构件上时克服施力构件的作用力而缩回车轮。缩回允许构件包括用于将车轮设置为不可缩回状态的设定机构。椅子配备有安装到其腿部的轮装置。

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