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21. 发明授权

US06308425B1 Tool clamping mechanism for a power tool 失效
标题翻译：电动工具的夹紧机构
公开(公告)号：US06308425B1
公开(公告)日：2001-10-30
申请号：US09101647
申请日：1998-07-14
申请人： Matt Schumann
发明人： Matt Schumann
IPC分类号： B23D4900
CPC分类号： B23D51/10 , Y10T83/9481
摘要： A clamping mechanism for a power tool which has a bayonet washer rotatably mounted on the end of a plunger so that the bayonet washer is rotatable between an open and a closed position. The bayonet washer is biassed towards the closed position by a torsion spring, but is latched in the open position when no operating member is positioned in the clamping mechanism. When an operating member is inserted into the mechanism through a slot in the bayonet washer and into engagement with the plunger, the washer is automatically released from the open position and rotates under the biassing force of the torsion spring to the closed position whereupon the operating member is locked into the power tool.
摘要翻译：一种用于电动工具的夹紧机构，其具有可旋转地安装在柱塞的端部上的卡口式垫圈，使得卡口式垫圈可在打开和关闭位置之间旋转。卡扣式洗衣机通过扭转弹簧朝向关闭位置偏压，但是当没有操作构件定位在夹紧机构中时，卡锁处于打开位置。当操作构件通过卡口式衬垫中的槽插入机构并与柱塞接合时，垫圈自动从打开位置释放并在扭簧的偏置力下旋转到关闭位置，从而操作构件被锁定在电动工具中。

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