公开(公告)号：US09932822B2

公开(公告)日：2018-04-03

申请号：US15006545

申请日：2016-01-26

Applicant: MITUTOYO CORPORATION

Inventor： Hiroyuki Watanabe ,  Teppei Ohno

IPC: G01B3/26 ,  E21B47/08 ,  G01B3/46 ,  G01B5/12

CPC classification number: E21B47/08 ,  G01B3/26 ,  G01B3/46 ,  G01B5/12

Abstract: There is provided a thin-bottom type bore gauge having damping unit between a gauge head and a head main body part, and a long life. A head part of a bore gauge includes a head main body part, a measurement spherical face at one end face, and a gauge head slidably provided by penetrating an inside and an outside of the head main body part. The gauge head a spring holding groove carved in a circumferential direction at the other end side, and a compression coil spring is interposed between the spring holding groove and an inside end face of the head main body part.

公开(公告)号：USD943442S1

公开(公告)日：2022-02-15

申请号：US29715775

申请日：2019-12-04

Applicant: MITUTOYO CORPORATION

Designer： Yoshiro Asano ,  Shigeru Ohtani ,  Yuhei Takatsu ,  Hiroyuki Watanabe

公开(公告)号：USD943443S1

公开(公告)日：2022-02-15

申请号：US29715776

申请日：2019-12-04

Applicant: MITUTOYO CORPORATION

Designer： Yoshiro Asano ,  Shigeru Ohtani ,  Yuhei Takatsu ,  Hiroyuki Watanabe