发明名称 |
Tool chuck |
摘要 |
A tool chuck for a hammer drill has an inner sleeve and an axially slidable outer sleeve concentrically surrounding the inner sleeve. The inner sleeve has an open leading end adapted to receive a shank of the tool. The shank is clamped in the inner sleeve with a snap action in response to insertion of the shank through the open end. Torque and/or axial impact are selectively imparted to the tool chuck from a drive of the hammer drill. The tool shank is formed with a radially outwardly opening recess closed at both axial ends and shaped to receive a tool-holding element and with at least one axially extending groove. A formation is formed in the inner sleeve which is engageable with the axially extending groove for torque transmission. A ring is positioned between the outer sleeve and the inner sleeve. The ring is movably biased by a spring in axial direction and is provided with a projection engageable with the tool-holding element when the latter is moved outwardly of the recess.
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申请公布号 |
US4502824(A) |
申请公布日期 |
1985.03.05 |
申请号 |
US19820393369 |
申请日期 |
1982.06.29 |
申请人 |
ROBERT BOSCH GMBH |
发明人 |
DOHSE, HANS-PETER;WANNER, KARL |
分类号 |
B23Q3/12;B25D17/08;(IPC1-7):B23C9/00;B23B31/22;E02D7/02 |
主分类号 |
B23Q3/12 |
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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