发明名称 |
自動化した掘削作業を行う動力工具及び方法 |
摘要 |
A power tool includes a pneumatic motor with an output shaft, a spindle that is drivingly connected to the output shaft via a drive gear to provide a rotational movement to the spindle and via a feed gear to provide a translational movement to the spindle. A cylinder that governs the gear transmission to the feed gear is arranged to be translated between a retraction gearing position and an advancement gearing position. The retraction gearing includes a retraction torque limiting coupling adapted to be released when an operational torque (T) exceeds a retraction threshold torque (TR) in order to terminate retraction. A lock mechanism is arranged to selectively block the cylinder in the retraction gearing position through engagement between a tooth of a ratchet on the lock mechanism and a shoulder on the cylinder. The lock mechanism assures that the cylinder is kept in the retraction gearing position during an initial phase of the retraction of the spindle. |
申请公布号 |
JP6029676(B2) |
申请公布日期 |
2016.11.24 |
申请号 |
JP20140540388 |
申请日期 |
2012.10.25 |
申请人 |
アトラス・コプコ・インダストリアル・テクニーク・アクチボラグ |
发明人 |
エリクソン,ウルフ マイケル;ゲオルグソン,ウィルヘルム マティアス |
分类号 |
B23B47/18;B23B47/08;B23B47/22;B23Q5/32;B23Q5/40 |
主分类号 |
B23B47/18 |
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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