| 摘要 |
PROBLEM TO BE SOLVED: To provide a technique contributing to reduction of impact force caused by rebound of a bit after striking operation in an impact power tool. SOLUTION: The impact power tool 101 has: a tool body 103; hammer operating members 119, 145 carrying out striking operation; a striker 143 applying a striking effect to the hammer operating members 119, 145; a weight 163 transmitted with reaction force from the hammer operating members 119, 145 in a reaction force transmitting position when the hammer operating members carry out hammer work; and an elastic element 165 pushed and elastically deformed by the weight 163 moved rearward by the transmitted reaction force and absorbing the reaction force. The mass of the weight 163 is set at about 40% of the mass of the striker 143. COPYRIGHT: (C)2008,JPO&INPIT
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