公开(公告)号：US06702090B2

公开(公告)日：2004-03-09

申请号：US10096441

申请日：2002-03-12

申请人： Daijiro Nakamura ,  Robert W. Klemm

发明人： Daijiro Nakamura ,  Robert W. Klemm

IPC分类号： F16D1900

CPC分类号： B25F5/001 ,  B25B21/00

摘要： A power tool and spindle lock. The spindle lock includes a spring and a detent arrangement to control and buffer the rotation of the spindle and to delay the engagement of the locking elements. In some aspects, the invention provides a spindle lock including a spring element which applies substantially equal spring force to delay the operation of the spindle lock when the spindle is rotated in the forward direction or in the reverse direction. In some aspects, the invention provides two spring members which cooperate to apply the substantially equal force to delay the operation of the spindle lock when the spindle is rotated in the forward direction or in the reverse direction.

摘要翻译： 电动工具和主轴锁。 主轴锁定包括弹簧和止动装置，用于控制和缓冲心轴的旋转并延迟锁定元件的接合。 在一些方面，本发明提供了一种主轴锁，其包括弹簧元件，该弹簧元件在主轴沿正向或相反方向旋转时施加基本相等的弹簧力以延迟主轴锁的操作。 在一些方面，本发明提供了两个弹簧构件，其协作以在主轴沿正向或相反方向旋转时施加基本相等的力来延迟主轴锁的操作。

公开(公告)号：US06261041B1

公开(公告)日：2001-07-17

申请号：US09091976

申请日：1998-11-27

申请人： Daijiro Nakamura

发明人： Daijiro Nakamura

IPC分类号： F16B2300

CPC分类号： B24B45/006 ,  B24B23/028 ,  B27B5/32 ,  Y10S411/917

摘要： A clamping screw for holding a tool to a threaded shaft is provided with a body member having a threaded surface for engagement with the threaded shaft. A flange ring is disposed about the body member and clampingly engages the tool when the body is threaded onto the shaft in engagement with the tool. An operating ring is rotatably disposed about the body member and retained from movement axially away from the flange ring. A torque increasing mechanism is operatively disposed about the body member between the operating ring and the flange ring and is configured to transmit torque from the operating ring to the body member. The torque increasing mechanism includes a first inclined cam surface disposed on the operating ring, a cam ring axially movably disposed but rotationally fixed about the body member, a second inclined cam surface disposed on the cam ring opposite to and corresponding to the first inclined surface, and a bearing supported on a retainer and disposed between the first inclined cam surface and the second inclined cam surface. The operating ring is rotatable with respect to the cam ring so that rotation of the operating ring applies torque and axial force to the cam ring through the bearing. A spring is operatively disposed between the cam ring and the operating ring and biases the cam ring toward an initial position with respect to the operating ring.

摘要翻译： 用于将工具保持到螺纹轴的夹紧螺钉设置有主体构件，该主体构件具有用于与螺纹轴接合的螺纹表面。 当主体与工具接合时将凸缘螺纹连接到轴上时，凸缘环围绕主体构件设置并夹紧地接合工具。 操作环围绕主体构件可旋转地设置并且保持轴向远离凸缘环的运动。 扭矩增加机构在操作环和法兰环之间围绕主体构件可操作地设置并且被构造成将扭矩从操作环传递到主体构件。 扭矩增加机构包括设置在操作环上的第一倾斜凸轮表面，轴向可移动地设置但围绕本体构件可旋转地固定的凸轮环;设置在与第一倾斜表面相对并对应于凸轮环的凸轮环上的第二倾斜凸轮表面， 以及支撑在保持器上并设置在第一倾斜凸轮表面和第二倾斜凸轮表面之间的轴承。 操作环相对于凸轮环可旋转，使得操作环的旋转通过轴承向凸轮环施加扭矩和轴向力。 弹簧可操作地设置在凸轮环和操作环之间并且相对于操作环将凸轮环偏压到初始位置。

公开(公告)号：US5322303A

公开(公告)日：1994-06-21

申请号：US971730

申请日：1992-11-04

申请人： Daijiro Nakamura

发明人： Daijiro Nakamura

IPC分类号： B23B31/173 ,  B23B31/00 ,  B23B31/12

CPC分类号： B23B31/1238 ,  B23B2231/38 ,  Y10S279/902 ,  Y10T279/17632

摘要： In construction of a tool chuck in which manual rotation of an outer operation sleeve causes concurrent rotation of an inner screw ring to move clamping jaws in a chuck body following the principle of screw feeding, a solid lubrication coating layer is interposed between the screw ring and the chuck body so as to minimize friction between the two elements during their relative rotation for clamping a tool via the jaws, thereby effectively utilizing input torque from the operation sleeve for clamping operation. The solid lubrication coating layer may be applied either to a washer or directly to the screw ring.

摘要翻译： 在工具卡盘的构造中，其中外部操作套筒的手动旋转引起内螺纹环的同时旋转，以按照螺杆进给的原理将夹爪移动到卡盘体中，固体润滑涂层插入在螺纹环和 卡盘体，以便在其相对旋转期间最小化两个元件之间的摩擦，以便通过夹爪夹紧工具，从而有效地利用来自操作套筒的输入扭矩进行夹紧操作。 固体润滑涂层可以施加到垫圈或直接施加到螺纹环上。