发明名称 |
Electropneumatic hammer drill or chipping hammer |
摘要 |
In an electropneumatic drill or chipping hammer with an air cushion transmitting driving force of an exciter piston to a percussion piston, a clutch is provided to interengage a drive motor with the exciter piston. The clutch can be selectively engaged by an axially displacing holding sleeve which positions a tool on the front end of the drill or hammer.
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申请公布号 |
US4529044(A) |
申请公布日期 |
1985.07.16 |
申请号 |
US19840593814 |
申请日期 |
1984.03.27 |
申请人 |
HILTI AKTIENGESELLSCHAFT |
发明人 |
KLUEBER, WILHELM;BLOECKINGER, PETER;THEISSIG, WERNER |
分类号 |
B25D11/12;B23B45/16;B25D16/00;B25D17/08;E21B1/00;E21B1/30;(IPC1-7):B23B45/02;B25D15/00 |
主分类号 |
B25D11/12 |
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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