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公开(公告)号:US10781856B2
公开(公告)日:2020-09-22
申请号:US16028831
申请日:2018-07-06
Applicant: MITUTOYO CORPORATION
Inventor: Seiichi Otsubo , Kenji Ueda
Abstract: The present invention relates to improving precision in a gate-type moving device. The gate-type moving device includes: a base, a gate-type moving body that is placed on the base via an air layer and moves on the base in a non-contact state, and an air bearing that forms the air layer, wherein the gate-type moving body is comprised of two leg parts that stand on an upper surface of the base, a beam portion that connects the leg parts, and a beam-direction moving body that moves along the beam portion, the air bearing is provided at a rear surface of at least one of the leg parts, and comprises an air blowout port that opens toward an upper surface of the base and an air suction port that opens toward the upper surface of the base, and the air suction port sucks air around the air suction port.
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公开(公告)号:US10962053B2
公开(公告)日:2021-03-30
申请号:US16671479
申请日:2019-11-01
Applicant: Mitutoyo Corporation
Inventor: Hisayoshi Sakai , Kenji Ueda
Abstract: An air bearing includes: a main body part having a bearing surface facing a guide surface; a flow path part provided in the main body part; an air film forming part that supplies compressed air flowing through the flow path part to the guide surface to form an air film; a negative pressure generating part that sucks air between the bearing surface and the guide surface, the negative pressure generating part being provided in the flow path part; a discharge path in communication with the flow path part; and a flow rate adjusting part that adjusts a flow rate of air flowing from the flow path part to the discharge path in accordance with a compressed air pressure corresponding to a load applied to the main body part.
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公开(公告)号:US10119565B2
公开(公告)日:2018-11-06
申请号:US15464552
申请日:2017-03-21
Applicant: Mitutoyo Corporation
Inventor: Kenji Ueda , Hisayoshi Sakai
Abstract: The air bearing includes a main body part having a bearing surface opposed to a guide face, first and second flow path parts, which are provided in the main body part, for allowing compressed air supplied from outside to flow, an air supply hole, which is provided in the flow path part, for supplying compressed air to the guide face to form an air film between the bearing surface and the guide face, and a negative pressure generating part, which is provided in the second flow path part intersecting with the first flow path part, for generating a negative pressure for sucking air between the guide face and the main body part by increasing the flow velocity of the compressed air.
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公开(公告)号:US20170284462A1
公开(公告)日:2017-10-05
申请号:US15464552
申请日:2017-03-21
Applicant: Mitutoyo Corporation
Inventor: Kenji Ueda , Hisayoshi Sakai
CPC classification number: F16C29/025 , F16C32/0622 , F16C32/0625 , F16C2240/44 , F16C2370/00 , G01B5/0009 , G01B21/047
Abstract: The air bearing includes a main body part having a bearing surface opposed to a guide face, first and second flow path parts, which are provided in the main body part, for allowing compressed air supplied from outside to flow, an air supply hole, which is provided in the flow path part, for supplying compressed air to the guide face to form an air film between the bearing surface and the guide face, and a negative pressure generating part, which is provided in the second flow path part intersecting with the first flow path part, for generating a negative pressure for sucking air between the guide face and the main body part by increasing the flow velocity of the compressed air.
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公开(公告)号:US10690473B2
公开(公告)日:2020-06-23
申请号:US16009739
申请日:2018-06-15
Applicant: MITUTOYO CORPORATION
Inventor: Kazuhiko Kimura , Kenji Ueda
Abstract: A slide caliper of this disclosure includes: a fine adjustment measurement part including: a finger-press type rotation part; and a supporter, wherein the finger-press type rotation part includes: a roller part including two disks; and a roller shaft part, wherein at least a portion of inner surfaces of the two disks and the main scale come into contact with each other by frictional force, wherein the roller bearing part includes: an inclined surface along which the roller shaft part is movable when the measuring force is applied; and a stopper disposed at a position where the stopper and the roller shaft part come into contact with each other, and when the measuring force is applied, the frictional force with respect to the roller part is reduced as the roller shaft part moves along the inclined surface while contacting with the stopper to limit the measuring force.
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公开(公告)号:US20200149587A1
公开(公告)日:2020-05-14
申请号:US16671479
申请日:2019-11-01
Applicant: Mitutoyo Corporation
Inventor: Hisayoshi Sakai , Kenji Ueda
IPC: F16C32/06
Abstract: An air bearing includes: a main body part having a bearing surface facing a guide surface; a flow path part provided in the main body part; an air film forming part that supplies compressed air flowing through the flow path part to the guide surface to form an air film; a negative pressure generating part that sucks air between the bearing surface and the guide surface, the negative pressure generating part being provided in the flow path part; a discharge path in communication with the flow path part; and a flow rate adjusting part that adjusts a flow rate of air flowing from the flow path part to the discharge path in accordance with a compressed air pressure corresponding to a load applied to the main body part.
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