| 摘要 |
A screw guider of a screwdriver, which is attachable to and detachable from a screwdriver, is retracted if unnecessary, and is selectively advanced and retracted to be used for various purposes, is provided. The screw guider includes a fixed sleeve which is attachable to and detachable from the screwdriver, a moveable slleve which moves forward and backward with respect to the fixed sleeve, and whose front end contacts a screw head to support the screw head, a position fixing means for selectively fixing advancing and retracting positions of the moveable sleeve, and a spring installed between the fixed sleeve and the moveable sleeve for biaising the moveable sleeve in a predetermined direction. Thus, the screw guider is attachable to and detachable from various existing screwdrivers. The moveable sleeve can be completely retracted, allowing the screwdriver to be used as an existing screwdriver. The screw does not fall and the screw, the screwdriver, and an object can be prevented from being damaged. |
