| 摘要 |
<p>A technique for a hammering tool, improving the efficiency of continuous work. A hammering tool comprises: a rotating member (131) driven by a motor (123); a driving member (133) for a hammering mechanism, the driving member (133) being provided in an advanceable and retractable manner to the rotating member (131); a pressing member (135) for pressing the driving member (133) in the retracting direction; a cam member (137) adapted to move between an operation region in which the driving member (133) is caused to project and a halt region in which the driving member (133) is not caused to project; switching members (167-169) for constantly setting the cam member (137) to the halt region and switching the cam member (137) to the operation region when there is a request for hammering; and a hammering mechanism (115) for performing a hammering operation by mechanically engaging with the driving member (133) which has been caused to project in the direction of the rotation axis of the rotating member (131) by the cam member (137) when the cam member (137) is located in the operation region. When the cam member (137) performs a single movement in which the cam member (137) moves from the halt region to the operation region and again moves to the halt region, the driving member (133) and the hammering mechanism (115) engage with each other two or more times, with only one time out of the two or more times being effective.</p> |
