公开(公告)号：US20190323834A1

公开(公告)日：2019-10-24

申请号：US16380335

申请日：2019-04-10

Applicant: MITUTOYO CORPORATION

Inventor： Hisayoshi SAKAI ,  Junsuke YASUNO ,  Ryosuke WATANABE

IPC: G01B21/30 ,  G01B21/20 ,  G12B5/00 ,  B23Q1/64

Abstract: A rotary disk rotatable around a vertical rotation axis; a bearing supporting the rotary disk so as to be freely rotatable; a slide disk slidable on a top surface of the rotary disk; a position adjustment bracket that displaces the slide disk along the top surface of the rotary disk; a placement disk that is supported by the slide disk; a plurality of air nozzles that are arranged on a top surface of the stator in an annular shape centered on the rotation axis, and form a static pressure air film between the top surface of the stator and a bottom surface of the rotary disk; an aerostatic pocket formed between the top surface of the rotary disk and a bottom surface of the slide disk; and a communication aperture is formed on the rotary disk and introduces pressure of the static pressure air film into the aerostatic pocket.

公开(公告)号：US20230032119A1

公开(公告)日：2023-02-02

申请号：US17872778

申请日：2022-07-25

Applicant: MITUTOYO CORPORATION

Inventor： Junsuke YASUNO

IPC: G01B5/20

Abstract: A roundness measuring machine includes: a turntable on which a workpiece is to be placed; a displacement detector detecting a displacement of a stylus; a column provided on a base shared with the turntable; a Z-axis slider supported by the column and movable in a Z-axis direction extending vertically; an X-axis slider supported by the Z-axis slider and movable in an X-axis direction intersecting the Z-axis direction; and an attitude adjusting mechanism provided to the X-axis slider and supporting the displacement detector such that an attitude of the displacement detector is adjustable. The attitude adjusting mechanism includes: a Y-axis slider supported by the X-axis slider and movable in a Y-axis direction intersecting the Z-axis and the X-axis directions; and a detector holder supported by the Y-axis slider and supporting the displacement detector such that the displacement detector is turnable around the X-axis direction.

公开(公告)号：US20180135704A1

公开(公告)日：2018-05-17

申请号：US15810823

申请日：2017-11-13

Applicant: MITUTOYO CORPORATION

Inventor： Junsuke YASUNO ,  Nobuyuki HAMA ,  Ryousuke WATANABE

IPC: F16D3/205

CPC classification number: F16D3/2057

Abstract: A rotation transmitter includes a first member, a second member, and an intermediate member. The first member is connected to the intermediate member by a first rotary mechanism. The second member is connected to the intermediate member by a second rotary mechanism. A second rotary mechanism includes: a second radial pin supported by a first one of the second member and the intermediate member; a plurality of pairs of rollers disposed at different positions of the second radial pin and each of the pairs of rollers holding the second radial pin therebetween; axial pins supporting the respective rollers while supported by a second one of the second member and the intermediate member; and stroke bearings respectively interposed between the rollers and the axial pins and supporting the rollers so that the rollers are rotatable around the axial pins and movable in a direction of the rotation axis.