The invention provides a safety device, a suspension type fan which has the multiple rotating vane motor is arranged in the horizontal direction to the hollow shaft; the upper part of the motor is prominent; connected to the upper end of the hollow shaft and hanging on the ceiling of the pipe; through through holes respectively arranged on the the pipe and the hollow shaft and the connecting bolt of the pipe and the hollow shaft is connected with the safety switch; set in the hollow shaft; for close contact the safety switch which is arranged on the tube of the operating rod in the through hole aperture wear under the condition of large expansion, the corresponding increase in the tube and the hollow shaft of the relative rotation range, the operating lever moves to open the contacts of the safety switch.
【技术实现步骤摘要】
【技术保护点】
一种悬吊式风扇的安全装置，其中，具有：使在水平方向上设置的多个叶片旋转的马达；向所述马达的上部突出的中空轴；用于与所述中空轴的上端连接而悬挂于顶棚的管子；经由分别设于所述管子和所述中空轴的贯通孔而将该管子和该中空轴连接的连接螺栓；设置在所述中空轴侧的安全开关；用于关闭所述安全开关的接点而设于所述管子的操作杆，在所述贯通孔的孔径磨损扩大的情况下，对应于所述管子和所述中空轴的相对的转动范围的增加，所述操作杆移动而能够打开所述安全开关的接点。
【技术特征摘要】
...
【专利技术属性】
技术研发人员：山本公伸，川津哲治，吉川宏，岩元清彦，谷村嘉树，
申请(专利权)人：松下电器产业株式会社，
类型：发明
国别省市：JP
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