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    • 8. 发明授权
    • Device for positioning an object
    • 用于定位物体的装置
    • US4784064A
    • 1988-11-15
    • US82307
    • 1987-08-06
    • Robert NemirovskyJoseph Deutsch
    • Robert NemirovskyJoseph Deutsch
    • B23Q1/28B23Q1/48B23Q7/14B65G39/18
    • B23Q7/1426B23Q1/28B23Q1/4804
    • A device for moving or positioning an object makes use of a track on a base and a circular groove on the platform. The platform holds the object. Balls are captured between the platform and the base which permit independent translation and rotation of the platform with respect to the base, by the simultaneous rolling and sliding of the balls. A mechanism for preloading and interlocking the base and the platform is also provided. The mechanism includes a shaft passing between the platform and the base and two channels formed in the platform. Elements disposed in the channels urge the shaft in opposite directions or selectively locking and disengaging of the platform and the base.
    • 用于移动或定位物体的装置利用基座上的轨道和平台上的圆形凹槽。 该平台拥有该对象。 球通过球的同时滚动和滑动被捕获在平台和基座之间,允许平台相对于基座独立平移和旋转。 还提供了用于预加载和互锁基座和平台的机构。 该机构包括在平台和基座之间通过的轴和在平台中形成的两个通道。 设置在通道中的元件沿相反方向推动轴,或者选择性地锁定和分离平台和底座。