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1. 发明申请

US20110120240A1 BREAK AWAY SLIDE MECHANISM WITH ENHANCED POSITIONING ACCURACY 有权
标题翻译：具有增强定位精度的防滑滑动机构
公开(公告)号：US20110120240A1
公开(公告)日：2011-05-26
申请号：US12623111
申请日：2009-11-20
申请人： David E. Lawson , William E. Stevens, JR.
发明人： David E. Lawson , William E. Stevens, JR.
IPC分类号： G01D21/00
CPC分类号： F16H25/2015 , F16H25/2204 , F16H2025/204
摘要： An actuator for selectively extending and retracting a probe in a measuring instrument comprises an actuator body, a carriage having a first aperture slidably attached to the body, and a second aperture receiving a probe holder having a probe. The first aperture of the carriage, which surrounds the actuator body, includes a first plurality of magnets disposed around an inner circumference of the aperture. The actuator body includes a lead screw, a round lead screw nut mated with the lead screw, and a second plurality of magnets arranged on a periphery of the lead screw nut, generally aligned with the first plurality of magnets. The magnets are arranged so that the carriage may be displaced with respect to the actuator body a sufficient amount that the magnets do not significantly restrain the further movement of the carriage.
摘要翻译：用于在测量仪器中选择性地延伸和缩回探头的致动器包括致动器主体，具有可滑动地附接到主体的第一孔的托架和容纳具有探针的探针保持器的第二孔。围绕致动器主体的托架的第一孔包括围绕孔的内圆周设置的第一多个磁体。致动器主体包括导螺杆，与导螺杆配合的圆形丝杠螺母，以及布置在导螺杆螺母周边上的第二多个磁体，与第一多个磁体大致对准。磁体被布置成使得托架可以相对于致动器主体移动足够的量，使得磁体不会显着地限制托架的进一步移动。

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