发明名称 |
Tightening tool. |
摘要 |
<p>A tightening tool includes a hammer for impacting on an anvil which drives a nut etc. A microphone is provided for converting impact sounds of the hammer on the anvil into an electric signal. A counting device counts the number of pulses of the electric signal. A setting device is provided for setting a set number of impacts to be obtained. A switch device compares the counted number of pulses with the set number and stops a motor for driving the hammer when the number of pulses coincides with the set number. <IMAGE></p> |
申请公布号 |
EP0552990(A1) |
申请公布日期 |
1993.07.28 |
申请号 |
EP19930300510 |
申请日期 |
1993.01.25 |
申请人 |
MAKITA CORPORATION |
发明人 |
SAKOH, MASAHIKO C/O MAKITA CORPORATION OF |
分类号 |
B25B23/14;B25B23/147;B25B23/15 |
主分类号 |
B25B23/14 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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