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公开(公告)号：US11131369B2
公开(公告)日：2021-09-28
申请号：US16361267
申请日：2019-03-22
Applicant: DENSO CORPORATION
Inventor： Norio Gouko , Toshihisa Taniguchi , Atusi Sakaida , Keiji Okamoto , Yoshihiko Shiraishi , Masahiro Asano , Tomikazu Ishikawa , Atsushi Kusaka
Abstract: A failure diagnostic apparatus for use in a ball screw conveyer includes a bearing stopper placed in contact with a bearing supporting a ball screw, a sensor unit equipped with an elastic member and a heat flux sensor, and a malfunction detector. The heat flux sensor works to produce an output as a function of deformation or displacement of the bearing stopper. The malfunction detector works to analyze the output from the heat flux sensor to detect a failure in operation of the ball screw conveyer. This enables a malfunction of the ball screw conveyer to be detected quickly and accurately.
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公开(公告)号：US11067519B2
公开(公告)日：2021-07-20
申请号：US16176313
申请日：2018-10-31
Applicant: DENSO CORPORATION
Inventor： Norio Gouko , Toshihisa Taniguchi , Atusi Sakaida , Keiji Okamoto , Yoshihiko Shiraishi , Masahiro Asano
Abstract: A strain detecting device includes a sensor portion and a covering elastic deformation member. The elastic deformation member generates heat when compressed and absorbs heat when expanded, resulting in heat flux. The sensor portion includes first and second heat flux sensors, each of which has first and second sensor surfaces formed opposite to each other. Each sensor outputs a strain-indicating signal of a polarity when the heat flux passes through the sensor, from the first sensor surface to the second sensor surface, and outputs a strain-indicating signal of an opposite polarity when the heat flux passes through the sensor in reverse, from the second sensor surface to the first sensor surface. The first sensor surfaces are opposed to each other across a heat absorbing member interposed between the sensors. The sensor portion generates signals based on the heat flux generated by deformation of the elastic deformation member.
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公开(公告)号：US10982973B2
公开(公告)日：2021-04-20
申请号：US16149272
申请日：2018-10-02
Applicant: DENSO CORPORATION
Inventor： Norio Gouko , Toshihisa Taniguchi , Atusi Sakaida , Keiji Okamoto , Yoshihiko Shiraishi , Masahiro Asano
Abstract: A position change measuring device which measures a change in position of a target object and includes a base member, a press member which is movable following a change in position of the target object, an elastic member which produces heat when contracting or absorbs heat when expanding, a heat flux sensor which outputs a signal as a function of a rate of heat flux transferred inside or outside the elastic member, and a diaphragm unit which is made of elastically deformable material. The diaphragm unit is retained by the base member in contact with the press member and works to produce force of resilience to recover the elastic member to its initial state when the elastic member contracts or expands in response to movement of the press member. This structure improves a response rate for sensing a change in position of the target object with high accuracy.
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公开(公告)号：US11193900B2
公开(公告)日：2021-12-07
申请号：US16304040
申请日：2017-05-16
Applicant: DENSO CORPORATION , TOYOTA JIDOSHA KABUSHIKI KAISHA
Inventor： Norio Gouko , Toshihisa Taniguchi , Atusi Sakaida , Keiji Okamoto , Yoshihiko Shiraishi , Masahiro Asano
Abstract: A heat flow measurement apparatus is provided with a heat flux sensor and a thermocouple sheet. The heat flux sensor includes an insulation substrate, a plurality of interlayer connection members, a front surface wiring pattern, a back surface wiring pattern, a front surface protective member and a back surface protective member. The thermocouple sheet includes a thermocouple, a first insulation sheet and a second insulation sheet, and is fixed to a portion where the front surface protective member and the back surface protective member extend in a surface direction from the insulation substrate.
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公开(公告)号：US10197376B2
公开(公告)日：2019-02-05
申请号：US15667768
申请日：2017-08-03
Applicant: DENSO CORPORATION
Inventor： Norio Gouko , Toshihisa Taniguchi , Atusi Sakaida , Keiji Okamoto , Yoshihiko Shiraishi , Masahiro Asano
Abstract: In a runout detection device for detecting runout of a rotating member, a displacement unit abuts on the rotating member, and is displaced in accordance with displacement of the rotating member while the rotor abuts on the displacement unit. An elastic member elastically deforms in accordance with displacement of the displacement unit. A heat flux sensor detects a heat flux generated by elastic deformation of the elastic member. The runout detection device is configured to detect runout of the rotating member based on the heat flux detected by the heat flux sensor.
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Patent Agency Ranking
公开(公告)号：US10054506B2
公开(公告)日：2018-08-21
申请号：US15484217
申请日：2017-04-11
Applicant: DENSO CORPORATION
Inventor： Norio Gouko , Toshihisa Taniguchi , Atusi Sakaida , Keiji Okamoto , Yoshihiko Shiraishi , Masahiro Asano
Abstract: A tension measuring apparatus includes a displacement part that is displaced in accordance with tension or a change of the tension of a wire rod to be measured when the displacement part is caused to abut against the wire rod to receive the tension of the wire rod, an elastic body that is elastically deformed in accordance with displacement of the displacement part, and a heat flow sensor that detects a heat flow caused by elastic deformation of the elastic body.
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公开(公告)号：US10054504B2
公开(公告)日：2018-08-21
申请号：US15619610
申请日：2017-06-12
Applicant: DENSO CORPORATION
Inventor： Norio Gouko , Toshihisa Taniguchi , Atusi Sakaida , Keiji Okamoto , Yoshihiko Shiraishi , Masahiro Asano
CPC classification number: G01L5/0028 , G01G3/13 , G01K17/08 , G01L1/18 , G01L1/2293 , G01L5/04 , G01L5/047 , G01L5/10 , G01L5/223 , G01N25/20
Abstract: A load change detection apparatus is provided with a base member, an elastic member, a first plate, a fixing member and heat flow sensors. The elastic member deforms according to a changed load applied to the elastic member, received by the receiving member. The first plate supports a surface of the elastic member on a side of the base member. The fixing member fixes the lower plate and the elastic member to the base member. The heat flow sensors, provided between the base member and the lower plate, output signals according to heat flowing between the lower plate and the base member. The heat flows due to heat generated or heat absorbed when the elastic member changes the elasticity shape thereof. Stress occurring when the elastic member deforms, is shut off by the first plate, thus direct transmission of the stress to the heat flow sensors is avoided.
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公开(公告)号：US11262180B2
公开(公告)日：2022-03-01
申请号：US16727152
申请日：2019-12-26
Applicant: DENSO CORPORATION
Inventor： Norio Goko , Toshihisa Taniguchi , Atsushi Sakaida , Keiji Okamoto , Yoshihiko Shiraishi , Masahiro Asano
Abstract: A position detection device, for detecting a change in relative position of a detection object with respect to a reference portion, includes: a base portion immovable with respect to the reference portion; a following portion deformable or movable following relative movement of the detection object with respect to the reference portion; an expandable and contractible member; and a heat flux detection section. The expandable and contractible member is provided between the base portion and the following portion, is made of a material expandable and contractible according to deformation or movement of the following portion, and generates heat during contraction and absorbs heat during expansion. The heat flux detection section is provided to be subjected to heat of the expandable and contractible member, and is configured to detect a heat flux that is a flow of heat between an inside and an outside of the expandable and contractible member.
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公开(公告)号：US10718612B2
公开(公告)日：2020-07-21
申请号：US15822345
申请日：2017-11-27
Applicant: DENSO CORPORATION
Inventor： Norio Gouko , Toshihisa Taniguchi , Atusi Sakaida , Keiji Okamoto , Yoshihiko Shiraishi , Masahiro Asano
Abstract: A strain detector is interposed between a base and an attachment member in a structure body having the base, the attachment member, and the stainless bolts fixed the base to the attachment member. The strain detector includes an elastic member and a heat flux sensor. The elastic member is provided to compress or extend in accordance with a deformation of the stainless bolts, and the elastic member generates heat based on the compression and absorbs heat based on the extension. The heat flux sensor is deformed in accordance with the compression or the extension of the elastic member and the heat in the elastic member is transferred to the heat flux sensor. The heat flux sensor can detect a magnitude of the heat flux Fh1 as a heat stream between the inside of the elastic member and the outside, generated by the compression or the extension of the elastic member.
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公开(公告)号：US10464113B2
公开(公告)日：2019-11-05
申请号：US15480440
申请日：2017-04-06
Applicant: DENSO CORPORATION
Inventor： Norio Gouko , Toshihisa Taniguchi , Atusi Sakaida , Keiji Okamoto , Yoshihiko Shiraishi , Masahiro Asano
IPC: G01N25/00 , G01K1/00 , G01K13/00 , B21B38/00 , G01K17/00 , B21C51/00 , B21D5/08 , G01K13/08 , G01K17/20
Abstract: A monitoring device monitors a forming machine (target device). The forming machine includes a housing, a bearing attached to the housing, and a shaft placed radially inside the bearing. The monitoring device includes a plurality of heat flux sensors and a detector. The heat flux sensors are provided on the radially outer side of the bearing and spaced from each other in the circumferential direction of the bearing. The heat flux sensors output a signal corresponding to heat fluxes through faces thereof on the bearing side and faces thereof on the other side. The detector detects a load applied radially to the shaft or bearing, based on the output from the heat flux sensors.
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