公开(公告)号：US11821724B2

公开(公告)日：2023-11-21

申请号：US17251097

申请日：2019-06-07

Applicant: MITUTOYO CORPORATION

Inventor： Koji Matsumoto ,  Yuji Fujikawa ,  Shinichiro Yanaka ,  Osamu Saito

IPC: G01B3/18 ,  G01B7/14

CPC classification number: G01B3/18 ,  G01B7/14

Abstract: A digital micrometer includes a main-body frame, a spindle, a thimble part, and a displacement detector that detects displacement of the spindle. The main-body frame includes a U-shaped frame part, and a spindle holding part provided on the other end side of the U-shaped frame part and having a length in a direction away from an anvil. The spindle is held by a spindle holding part, provided to be movable forward and backward in an axial direction with respect to the anvil, and includes a contactor on one end face. The main-body frame and the spindle are formed of a non-magnetic material.

公开(公告)号：US09982985B2

公开(公告)日：2018-05-29

申请号：US14700990

申请日：2015-04-30

Applicant: MITUTOYO CORPORATION

Inventor： Yuji Fujikawa

IPC: G01B3/18 ,  B23Q17/20 ,  B23Q35/04 ,  G01B21/00

CPC classification number: G01B3/18 ,  B23Q17/20 ,  B23Q35/04 ,  G01B21/00

Abstract: Provided is a comparator including: a substantially U-shaped frame; an anvil supported at one end of the frame in an advanceable and retractable manner; a spindle supported at another end of the frame coaxially with the anvil in an advanceable and retractable manner; a measurement unit that measures the advancement and retraction of the anvil; and a display unit that displays a measurement result of the measurement unit. The measurement unit includes: an anvil contact portion that rotates around a support shaft in accordance with the advancement and retraction of the anvil; an interlocking portion that is formed to have a length greater than the length of the anvil contact portion, is supported so as to be rotatable around the support shaft, and is coupled to the anvil contact portion; and a detection unit that detects a displacement of rotation of the interlocking portion.

公开(公告)号：US10996043B2

公开(公告)日：2021-05-04

申请号：US16353239

申请日：2019-03-14

Applicant: MITUTOYO CORPORATION

Inventor： Yasuhiro Tsujimoto ,  Yuji Fujikawa

IPC: G01B3/18 ,  G01B3/00

Abstract: There is provided a method for controlling a small-sized adjustable measuring force measurement device capable of appropriately setting the origin.
A central control unit changes an operation mode to an origin setting mode in response to predetermined mode changing operation. The central control unit sets a counter value of an encoder to zero as an origin when a measuring force detecting means detects that a movable member is brought into contact with an object to be measured at a predetermined pressure in the origin setting mode.

公开(公告)号：US10295324B2

公开(公告)日：2019-05-21

申请号：US15611087

申请日：2017-06-01

Applicant: MITUTOYO CORPORATION

Inventor： Koji Matsumoto ,  Yuji Fujikawa ,  Shuji Hayashida ,  Nobuyuki Hayashi

IPC: G01B3/18 ,  G01B3/00 ,  G01B3/38

Abstract: A measuring instrument includes a measuring unit, an electric component unit and a pin jack. The electric component unit includes a signal processing part. The signal processing part is configured to calculate a measurement data based on a detection signal obtained by the measuring unit. The pin jack is provided in the electric component unit.

公开(公告)号：US20210140751A1

公开(公告)日：2021-05-13

申请号：US17251097

申请日：2019-06-07

Applicant: MITUTOYO CORPORATION

Inventor： Koji Matsumoto ,  Yuji Fujikawa ,  Shinichiro Yanaka ,  Osamu Saito

IPC: G01B3/18 ,  G01B7/14

Abstract: There is provided a digital micrometer suitable for measuring an object to be measured that is a strong magnet.
A digital micrometer includes a main-body frame, a spindle, a thimble part, and a displacement detector that detects displacement of the spindle. The main-body frame includes an U-shaped frame part, and a spindle holding part provided on the other end side of the U-shaped frame part and having a length in a direction away from an anvil. The spindle is held by a spindle holding part, provided to be movable forward and backward in an axial direction with respect to the anvil, and includes a contactor on one end face. The main-body frame and the spindle are formed of a non-magnetic material.

公开(公告)号：US10451450B2

公开(公告)日：2019-10-22

申请号：US15641845

申请日：2017-07-05

Applicant: MITUTOYO CORPORATION

Inventor： Atsuya Niwano ,  Shuji Hayashida ,  Nobuyuki Hayashi ,  Yuji Fujikawa ,  Koji Matsumoto

IPC: G01D7/00 ,  G01B21/04 ,  G01B3/18 ,  G08C17/00

Abstract: An external device is configured to be detachably attached to a measuring instrument via a connector. The external device includes a connector part, an external device body part and a movable connection part. The connector part has a connection terminal. The external device body part has a display part on a side surface of the external device body part. The movable connection part is configured to connect the connector part with the external device body part. The movable connection part is a biaxial rotation hinge having two pivot axes which are in a twisted position relationship with respect to each other.