公开(公告)号：US09869537B2

公开(公告)日：2018-01-16

申请号：US15059528

申请日：2016-03-03

Applicant: MITUTOYO CORPORATION

Inventor： Kazuhiko Hidaka ,  Takeshi Yamamoto

IPC: G01B5/012 ,  G01B3/00

CPC classification number: G01B3/002 ,  G01B3/008 ,  G01B5/012

Abstract: A contact probe includes a stylus, a spring, a magnetic body, and a permanent magnet. The stylus is displaceable in an X direction and a tip of the stylus makes contact with a measured object. A first end of the spring is fixated and a second end provides spring force along the X direction. A position of the magnetic body is fixated with respect to the stylus. The permanent magnet is arranged separated from the magnetic body so as to generate a magnetic force along the X direction between the magnetic body and the permanent magnet.

公开(公告)号：US10113931B2

公开(公告)日：2018-10-30

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: G01B7/008 ,  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.

公开(公告)号：US09518811B2

公开(公告)日：2016-12-13

申请号：US14669667

申请日：2015-03-26

Applicant: MITUTOYO CORPORATION

Inventor： Takeshi Yamamoto ,  Sadayuki Matsumiya ,  Atsushi Shimaoka ,  Kazuhiko Hidaka ,  Tomoyuki Miyazaki ,  Yasunori Mori

IPC: G01B5/20 ,  G01B3/00

CPC classification number: G01B3/008 ,  G01B5/20

Abstract: A measuring force includes a stem, an arm, a detector, a rotation fulcrum, and a measuring force adjuster. A probe which makes contact with a workpiece is provided on the stem. An end portion of the arm is joined to the stem. The rotation fulcrum acts as a fulcrum for a rotating motion of the stem and the arm. The detector detects a displacement amount of the rotating motion of the arm. A crossed spring of the rotation fulcrum imparts on the stem and the arm a torque around an axis of the rotating motion in accordance with the displacement amount of the rotating motion. The measuring force adjuster imparts on the arm and the stem a torque, in a reverse direction of the torque generated by the crossed spring, by an attraction force generated by a magnetic force between at least two magnetic members mutually arranged at opposite ends.

Abstract translation: 测量力包括杆，臂，检测器，旋转支点和测量力调节器。 在杆上设置与工件接触的探针。 臂的端部连接到杆。 旋转支点用作杆和臂的旋转运动的支点。 检测器检测臂的旋转运动的位移量。 旋转支点的交叉弹簧根据旋转运动的位移量，在杆和臂上施加围绕旋转运动的轴线的转矩。 测量力调节器通过由在相对端相互布置的至少两个磁性构件之间的磁力产生的吸引力，在与交叉弹簧产生的扭矩相反的方向上向臂和杆施加扭矩。

公开(公告)号：US09303968B2

公开(公告)日：2016-04-05

申请号：US14483753

申请日：2014-09-11

Applicant: MITUTOYO CORPORATION

Inventor： Yasunori Mori ,  Takeshi Yamamoto ,  Atsushi Shimaoka ,  Tomoyuki Miyazaki ,  Kazuhiko Hidaka

IPC: G01B5/28 ,  G01B5/20 ,  G01B3/00 ,  G01B5/008

CPC classification number: G01B5/20 ,  G01B3/008 ,  G01B5/008 ,  G01B5/28

Abstract: A lever-type measuring machine swinging around a supporting point includes a stylus measuring a shape of a measured object, an arm having a first end connected to the stylus and a second end connected to the supporting point, and a balancer having a first end connected to the supporting point. The balancer is formed of a material having high specific flexural rigidity. The lever-type measuring machine enables more accurate measurement.

Abstract translation: 围绕支撑点摆动的杠杆式测量机包括测量被测物体的形状的触针，具有连接到触控笔的第一端的臂和连接到支撑点的第二端，以及平衡器，其具有第一端连接 到支持点。 平衡器由具有高抗弯刚度的材料形成。 杠杆式测量机可以进行更精确的测量。