公开(公告)号：US12000435B2

公开(公告)日：2024-06-04

申请号：US17438385

申请日：2020-03-11

Applicant: THE SCHOOL CORPORATION KANSAI UNIVERSITY ,  NTN CORPORATION

Inventor： Hiroshi Tani ,  Hiroyuki Hakamata ,  Yusuke Shibuya ,  Sota Yamaguchi

IPC: F16C41/00

CPC classification number: F16C41/007 ,  F16C41/004

Abstract: A rolling bearing according to an embodiment includes a stationary ring having a first facing surface, a rotating ring having a second facing surface facing the first facing surface, and rotating relative to the stationary ring, rolling elements arranged between the first facing surface and the second facing surface, a cage that retains the rolling elements, first electrodes and second electrodes fixed in position relative to the stationary ring and arranged in a bearing space between the stationary ring and the rotating ring, third electrodes fixed in position relative to the rotating ring, position relative to the rolling elements, or position relative to the cage and arranged in the bearing space, and an insulating film formed on surfaces of the first electrodes and the second electrodes or surfaces of the third electrodes.

公开(公告)号：US12066056B2

公开(公告)日：2024-08-20

申请号：US17798830

申请日：2021-02-02

Applicant: NTN Corporation

Inventor： Takashi Koike ,  Yusuke Shibuya ,  Sota Yamaguchi

IPC: F16C32/04 ,  F16C43/04 ,  H02K7/09

CPC classification number: F16C32/0474 ,  F16C43/04 ,  H02K7/09

Abstract: A bearing device includes: a magnetic ring fixed to an inner ring; and a stator fixed to an outer ring so as to face magnetic ring. Magnetic ring and stator constitute a claw pole type generator. Stator includes a coil and a magnetic yoke surrounding coil. The magnetic yoke is configured by combining a first member and a second member that are magnetic bodies. First member and second member have an identical shape. Each of first member and second member has a plurality of second claws arranged in a comb shape. A plurality of first claws of first member and the plurality of second claws of second member are alternately arranged on a surface facing magnetic ring.

公开(公告)号：US11137303B2

公开(公告)日：2021-10-05

申请号：US16649092

申请日：2018-09-20

Applicant: NTN CORPORATION

Inventor： Yusuke Shibuya ,  Takashi Koike ,  Yasuyuki Fukushima

IPC: G01L3/10

Abstract: A torque detection device includes an inner ring, a middle ring, an outer ring, a first beam, a second beam, a magnetic target, and a magnetic sensor. The first beam is composed of an elastic member extending in a radial direction so as to couple the inner ring and the middle ring together. The second beam is composed of an elastic member extending in a radial direction so as to couple the middle ring to the outer ring together. The magnetic target is fixed to the inner ring and the magnetic sensor is fixed to the middle ring such that the magnetic target and the magnetic sensor face each other. Torque acting on the inner ring or the outer ring is calculated according to how an amount of magnetism sensed by the magnetic sensor changes.

公开(公告)号：US12188835B2

公开(公告)日：2025-01-07

申请号：US17753198

申请日：2020-08-19

Applicant: KOA Corporation ,  NTN Corporation

Inventor： Homare Kaneko ,  Natsumi Shiobara ,  Koichi Urano ,  Yusuke Shibuya ,  Daichi Kondou

IPC: G01L1/22 ,  G01L1/20

Abstract: A load sensor element includes a substrate made of a ceramic material; an inorganic layer having a surface configured to receive a load, the inorganic layer covers a portion of the substrate; a thin-layer resistance body whose resistance value changes in accordance with the load received by the inorganic layer, the thin-layer resistance body having a main body portion and a pair of end portions, the main body portion mounted on the covered portion of the substrate and sandwiched between the substrate and the inorganic layer, the pair of end portions mounted on an exposed portion of the substrate, and the exposed portion free of the inorganic layer; and a pair of electrodes electrically connected to the pair of end portions of the thin-layer resistance body and separated away from the inorganic layer and on one side of the substrate.

公开(公告)号：US10906372B2

公开(公告)日：2021-02-02

申请号：US16333669

申请日：2017-09-20

Applicant: NTN CORPORATION

Inventor： Yusuke Shibuya ,  Shiro Tamura

IPC: B60G21/055 ,  B60G15/07 ,  B60K7/00 ,  B60G7/00

Abstract: A suspension structure for an in-wheel motor drive device of the present invention includes an in-wheel motor drive device (10), a shock absorber (76), a torsion bar (81), and a stabilizer link (86), wherein: the shock absorber includes an upper spring seat (79a) provided in an upper end region of the shock absorber and a lower spring seat (79b) provided in a lower end region of the shock absorber and forming a pair with the upper spring seat; an upper end (87a) of the stabilizer link is arranged between a vehicle back edge (79d) of the lower spring seat and a vehicle front edge (79c) of the lower spring seat; and a lower end (87b) of the stabilizer link is arranged so as to overlap with a hub wheel (12) as viewed in an axial direction of the hub wheel.

公开(公告)号：US11293494B2

公开(公告)日：2022-04-05

申请号：US16971291

申请日：2019-02-08

Applicant: NTN CORPORATION

Inventor： Takashi Koike ,  Yasuyuki Fukushima ,  Yusuke Shibuya

IPC: F16C41/00 ,  F16C19/06 ,  F16C19/52 ,  F16C33/78

Abstract: A bearing equipped with a sensor and incorporating a power generation function in a simple configuration is provided. A bearing includes an outer ring, a plurality of rolling elements, an inner ring, a cage, a seal member, a sensor, a transmission unit, and a power generation unit. The sensor is disposed in the seal member, and detects state information of the bearing. The transmission unit transmits the state information detected by the sensor to outside. The power generation unit is disposed so as to face a bearing space sandwiched between the outer ring and the inner ring, and generates electric power that is to be supplied to the sensor and the transmission unit. The power generation unit includes an element that converts stress into electromotive force.

公开(公告)号：US11155161B2

公开(公告)日：2021-10-26

申请号：US15565787

申请日：2016-04-14

Applicant: NTN CORPORATION

Inventor： Tomoaki Makino ,  Isao Hirai ,  Yusuke Shibuya

IPC: B60K17/14 ,  F16H1/20 ,  F16H57/021 ,  F16H1/06 ,  F16H57/04 ,  B60K1/00 ,  B60K17/04 ,  B60K7/00 ,  F16H57/02

Abstract: An automobile-motor driving device equipped with speed reducer which has improved supply of lubrication oil to inside of the rolling bearings without sacrificing the function of the bearings, to reduce deformation in the rolling bearing outer ring. A parallel shaft gear speed reducer provides an automobile-motor driving device equipped with speed reducer. The parallel shaft gear speed reducer includes a plurality of gear shafts having two ends supported via rolling bearings fitted into bearing fitting holes in a speed reducer casing which houses the parallel shaft gear speed reducer. A groove in an inner circumferential surface of the bearing fitting hole into which the rolling bearing is fitted communicates between a space that houses the speed reducer and an inside space of the bearing fitting hole, at a location not crossed by the line of action of a load acting upon the rolling bearing due to the meshing of the gears.

公开(公告)号：US10920884B2

公开(公告)日：2021-02-16

申请号：US16339385

申请日：2016-11-04

Applicant: NTN CORPORATION

Inventor： Shiro Tamura ,  Yusuke Shibuya

IPC: F16H63/34 ,  B60B27/00 ,  B60K7/00 ,  B60K17/04

Abstract: In an in-wheel motor drive device, a speed reduction part is a parallel shaft gear reducer that includes a plurality of gear shafts extending in parallel to one another. One of the gear shafts is coupled with the rotation shaft of the motor part, the other one of the gear shafts is coupled with the wheel hub of the wheel hub bearing part. Remaining gear shafts decelerate the rotation of the motor part and transmit it to the wheel hub. The motor drive device includes a parking gear attached to any of the gear shafts. The parking pawl has a projection portion engaged with a recess portion of the parking gear. A movement member enables a parking pawl to move between a locking position engaged with the recess portion and an unlocking position not engaged therewith. The parking gear, the parking pawl, and movement member are housed inside a housing.

公开(公告)号：US12196257B2

公开(公告)日：2025-01-14

申请号：US17787047

申请日：2020-12-08

Applicant: NTN CORPORATION

Inventor： Takashi Koike ,  Yasuyuki Fukushima ,  Yusuke Shibuya ,  Daichi Kondou

IPC: F16C19/52 ,  F16C19/54 ,  F16C35/12 ,  G01L5/00

Abstract: A bearing device includes: at least one bearing that has a rolling element and a raceway surface to support a main shaft; a member disposed on a path through which pressing force generating a preload between the rolling element and the raceway surface is transmitted; and at least one load sensor element fixed to the member to measure the pressing force. At least one load sensor element is a chip component including a thin film pattern of which resistance changes according to the pressing force and a protective layer that insulates and protects thin film pattern.

公开(公告)号：US10723288B2

公开(公告)日：2020-07-28

申请号：US16090598

申请日：2016-09-29

Applicant: NTN CORPORATION

Inventor： Shogo Okamoto ,  Shiro Tamura ,  Minoru Suzuki ,  Yusuke Shibuya ,  Shinya Taikou

IPC: B60K7/00 ,  B60R16/02 ,  B60K17/04 ,  B60G3/20 ,  B60R16/023 ,  B60R16/03

Abstract: An in-wheel motor power line (93) includes, between its one end and the other end, an in-wheel motor drive device-side region (93d), an intermediate region (93e), and a vehicle body-side region (93f) which extend continuously. The in-wheel motor drive device-side region (93d) extends in the vertical direction, and the lower side of the in-wheel motor drive device-side region is connected to the intermediate region. The vehicle body-side region extends in the vertical direction, and the lower side of the vehicle body-side region is connected to the intermediate region. The intermediate region is curved with its both sides located at a higher position and its intermediate part located at a lower position.