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NTIS 바로가기국가/구분 | United States(US) Patent 등록 |
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국제특허분류(IPC7판) |
|
출원번호 | US-0913542 (1978-06-08) |
우선권정보 | DE-2728961 (1977-06-27) |
발명자 / 주소 |
|
출원인 / 주소 |
|
인용정보 | 피인용 횟수 : 28 인용 특허 : 0 |
In a hammer drill in which both rotationally and axially directed driving force components can be transmitted to a tool held in a tool holder, a coupling member is displaceable between three axially spaced positions. In the first position the coupling member transmits rotational driving force to the
Hammer drill comprising a housing having a front end and a rear end, tool holder means located within said housing and having an axis of rotation extending in the direction of the rear end to the front end of said housing, said tool holder means having a front end facing in the same direction as the
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