公开(公告)号：US20160299028A1

公开(公告)日：2016-10-13

申请号：US15092065

申请日：2016-04-06

Applicant: MITUTOYO CORPORATION

Inventor： Hideyuki ARAI ,  Kazuhiko HIDAKA ,  Minoru TANAKA ,  Tomoyuki MIYAZAKI ,  Takeshi YAMAMOTO

IPC: G01L25/00

CPC classification number: G01L25/00

Abstract: A stylus support portion moveable in an X direction is arranged separate from a fixed portion. A plate spring has a first end fixated to an end portion of the stylus support portion in an X (+) direction, a second end fixated to the fixed portion, and a principal surface facing the X direction. A plate spring has a first end fixated to an end portion of the stylus support portion in an X (−) direction, a second end fixated to the fixed portion, and a principal surface facing the X direction. A first permanent magnet is provided on the end portion of the stylus support portion in the X (+) direction. A second permanent magnet is provided on the end portion of the stylus support portion in the X (−) direction. A third permanent magnet is provided to the fixed portion so that a magnetic force in the X direction acts on an area between the first permanent magnet and the third permanent magnet. A fourth permanent magnet is provided to the fixed portion so that the magnetic force in the X direction acts on an area between the second permanent magnet and the fourth permanent magnet.

Abstract translation: 可在X方向上移动的触针支撑部分与固定部分分开布置。 板簧具有在X（+）方向上固定到触针支撑部的端部的第一端，固定到固定部的第二端和面向X方向的主表面。 板簧具有第一端，其固定在X（ - ）方向上的触针支撑部分的端部，固定到固定部分的第二端和面向X方向的主表面。 第一永久磁铁在X（+）方向上设置在触针支撑部分的端部上。 在X（ - ）方向上的触针支撑部分的端部设有第二永磁体。 第三永磁体设置在固定部分上，使得X方向上的磁力作用在第一永磁体和第三永久磁铁之间的区域上。 第四永磁体设置在固定部分上，使得X方向上的磁力作用在第二永磁体和第四永久磁铁之间的区域上。