| 摘要 |
PURPOSE:To secure safety by a method wherein a rear protecting net is formed into finely reticulated semi-sphere, a motor is provided inside the rear protecting net and a front protecting net is formed into finely reticulated semi-sphere in order to obtain a sufficient distance from the blades of the fan. CONSTITUTION:The motor 307 is accommodated in the rear protecting net 302, therefore, the blades 306 may be located at the connecting part A of the front and rear protecting nets 301, 302 without elongating the shaft of the motor 307 so as to obtain the sufficient distance from the rear protecting net 302. Further, the front protecting net 301 is formed also into the semi-spherical configuration, therefore, the distance between the blades 306 and the front protecting net 301 may be obtained sufficiently. Furthermore, the front and rear protecting nets 301, 302 are formed into finely reticulated semi-spheres, therefore, the blades 306 are protected surely by the nets 301, 302 and human fingers or the like can not be inserted through the nets, thereby improving the safety of the fan. |
