Invention Grant
- Patent Title: Castor that is controlled by a wire to brake and stop rotating simultaneously
- Patent Title (中): 蓖麻由电线控制制动并同时停止旋转
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Application No.: US13432059Application Date: 2012-03-28
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Publication No.: US08522397B1Publication Date: 2013-09-03
- Inventor: Po-Chuan Tsai
- Applicant: Po-Chuan Tsai
- Agency: Kamrath IP Lawfirm, P.A.
- Agent Alan Kamrath
- Main IPC: B60B33/00
- IPC: B60B33/00
Abstract:
A castor includes a support shaft, a stop ring secured on the support shaft and having a first locking portion, a castor body rotatably mounted on the support shaft, two rollers rotatably mounted on the castor body and each having a second locking portion, a locking module movably mounted on the castor body and movable to engage the first locking portion of the stop ring and the second locking portion of each of the rollers, and a control wire movably mounted on the support shaft and connected with the locking module. Thus, when the castor is locked, each of the rollers is locked by the locking module, and the castor body is locked by the stop ring, so that the castor will stop rotating when being braked to provide a double-braking effect.
Information query
