发明授权
- 专利标题： Hand operated power tool and chuck therefor
- 专利标题（中）： 手动操作的电动工具和卡车
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申请号： US3732026D申请日： 1971-01-11
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公开(公告)号： US3732026A公开(公告)日： 1973-05-08
- 发明人: PETERS R
- 申请人： PETERS R
- 专利权人： R Peters
- 当前专利权人： R Peters
- 优先权： US10525171 1971-01-11
- 主分类号： B23B31/12
- IPC分类号： B23B31/12 ; B23B45/00 ; B23B45/02 ; B23B31/30
摘要：
A hand power tool is described having a drive arrangement providing on initial energization of the unit automatic gripping of a tool. The drive arrangement includes a fluid pump which is driven by the motor of the tool when it is first started. The pump delivers fluid pressure to a chamber within the tool chuck and drives a piston therein which, in turn, drives the jaws of the chuck into clamping engagement with the tool piece shank. The jaws of the chuck are meshed with one another in a manner assuring that they uniformly move radially inward to grip the shank and align the tool with the rotational axis of the chuck.
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