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2. 发明授权

US4695065A Keyless chuck for rotary tool 失效
标题翻译：旋转工具的无钥匙卡盘
公开(公告)号：US4695065A
公开(公告)日：1987-09-22
申请号：US946067
申请日：1986-12-24
申请人： Teruaki Komatsu , Kiyoshi Kobayashi , Kunihiko Tatsu , Shoichi Shibata
发明人： Teruaki Komatsu , Kiyoshi Kobayashi , Kunihiko Tatsu , Shoichi Shibata
IPC分类号： B23B31/173 , B23B31/12
CPC分类号： B23B31/1253 , Y10S279/902 , Y10T279/17615 , Y10T279/17649
摘要： A keyless chuck for a rotary tool comprises a chuck body which is adapted to be coupled at its one end to a drive spindle of a drive source and coupled at the other end to a tool bit for establishing a driving connection from the drive source to the tool bit. Relatively rotatable to the chuck body is a handle ring which is operatively connected to a set of gripping jaws for tightening the gripping jaws on the tool bit upon being rotated in one direction and loosening the same upon being rotated in the opposite direction. The handle ring is disposed on the chuck body in such a manner as to coincide the rotating direction of the handle ring for tightening the gripping jaws with the reverse rotating direction of the chuck body for removing the tool bit from a workpiece. A clutch interconnects the handle ring and the chuck body in order to rotatively fix the handle ring to the chuck body when the latter is driven to rotate in the reverse direction of removing the tool bit, causing the handle ring to positively rotate in the direction of tightening the gripping jaws and thus preventing it from counter-rotating in the direction of loosening the tool bit when there develops an interaction between the rotating chuck body and the handle ring relatively rotatable thereto. Associated with the clutch is a control mechanism which functionally moves the clutch between an active position where it is activated for the clutch connection and an inactive where it releases the handle ring from the chuck body to permit the relative rotation of the handle ring with respect to the chuck body for enabling the hand tightening and loosening of the gripping jaws.
摘要翻译：用于旋转工具的无钥匙卡盘包括卡盘主体，卡盘主体的一端连接到驱动源的驱动主轴，另一端连接到工具头，用于建立从驱动源到驱动源的驱动连接工具位与卡盘主体相对地可旋转的是手柄环，该手柄环可操作地连接到一组夹爪，用于在沿一个方向旋转时将夹爪紧固在工具头上，并且在沿相反方向旋转时使其松动。把手环以与把手环的旋转方向一致的方式设置在卡盘主体上，以便与卡盘主体的反向旋转方向紧固夹爪，以从工件上移除工具头。离合器将手柄环和卡盘主体相互连接，以便当把手环旋转地固定在卡盘体上时，把手环沿着相反方向旋转，从而使把手环沿着当夹持在相对旋转的卡盘体和手柄环之间发生相互作用时，使夹持爪紧固，从而防止其沿松动工具的方向反向旋转。与离合器相关联的是一种控制机构，其功能地使离合器在其被激活用于离合器连接的活动位置和非活动位置之间移动，其中该离合器从卡盘主体释放手柄环，以允许手柄相对于卡盘主体，用于使手夹紧和松开夹爪。

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