| 摘要 |
PURPOSE: A locking screw and an exclusive screwdriver for the same are provided to fundamentally prevent a compulsive counterturned loosening using a flat-head screwdriver, to recycle components of a gauge, and to simplify an inspection and repair. CONSTITUTION: A locking screw comprises a head unit(10) and a screw unit(20). A vertical guide groove unit(11) is form in the center of the head unit. Hanging units(12,12') catty-corner from an identical rotating direction are formed on a floor surface and an inner surface of the guide groove unit. The hanging units are formed by a vertical hanging plane(13) and an inclined plane(14). A guide pin(15) is formed between hanging units being spaced from the hanging units. The locking screw is fastened and loosened by an exclusive screwdriver having an end portion of a shape corresponding to the hanging units of the guide groove and a guide pin. |
