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1. 发明申请

US20230131486A1 ROLLING BEARING 有权
公开(公告)号：US20230131486A1
公开(公告)日：2023-04-27
申请号：US17910154
申请日：2021-03-12
申请人： NSK LTD.
发明人： Takuya OYAMA , Hironori SUZUKI
IPC分类号： F16C19/08 , F16J15/3204
摘要： A rolling bearing includes: an outer ring including an outer ring raceway surface on an inner peripheral surface; an inner ring including an inner ring raceway surface on an outer peripheral surface; a plurality of rolling elements rotatably arranged between the outer ring raceway surface and the inner ring raceway surface; and a sealing member fixed to a seal mounting groove formed on an axial end portion of the outer ring by a retaining ring, the sealing member sealing an axial end portion of a bearing internal space between the outer ring and the inner ring. The sealing member includes a protruding portion at a radial outer end portion, and an outer diameter of the sealing member is larger than an outer diameter of the retaining ring in the seal mounting groove.

2. 发明授权

US11623473B2 Wheel and vehicle 有权
公开(公告)号：US11623473B2
公开(公告)日：2023-04-11
申请号：US17790307
申请日：2020-10-30
申请人： NSK LTD.
发明人： Ko Fujioka
IPC分类号： B60B19/04 , B60B19/00 , F16H57/08
摘要： A wheel and a vehicle each having a simple structure and capable of moving over a step while maintaining stability at flat ground traveling are provided. A wheel includes an outer ring that rotates about a wheel rotational axis, an arm drive gear that rotates independently from the outer ring about the wheel rotational axis, and an arm capable of rotating about an arm rotational axis fixed to the outer ring, the arm being configured to partially protrude outside from an outer peripheral surface of the outer ring in a radial direction as the arm drive gear rotates relative to the outer ring in one direction (normal rotational direction) and to be housed inside in the radial direction from the outer peripheral surface of the outer ring as the arm drive gear rotates relative to the outer ring in the other direction (reverse rotational direction) opposite to the one direction.

3. 发明申请

US20230086747A1 WIRELESS POWER RECEPTION SYSTEM, MOVING BODY, AND WHEEL 有权
公开(公告)号：US20230086747A1
公开(公告)日：2023-03-23
申请号：US17754668
申请日：2020-09-10
申请人： THE UNIVERSITY OF TOKYO , BRIDGESTONE CORPORATION , NSK Ltd.
发明人： Hiroshi FUJIMOTO , Osamu SHIMIZU , Keizo AKUTAGAWA , Yasumichi WAKAO , Isao KUWAYAMA , Daisuke GUNJI
IPC分类号： B60L53/12 , B60L53/30 , H02J50/00 , H02J50/10
摘要： A wireless power reception system 1 includes: a power reception device 5 including a power reception coil 51 that receives power supplied wirelessly from a power transmission coil 41 of a power transmission device 4 installed in a road surface, at least a portion of the power reception coil 51 being housed in a wheel 3 of a moving body 2; and an onboard device 6 which is installed in the moving body 2 and which is electrically connected to the power reception device 5, wherein the power reception device 5 can transmit received power to the onboard device 6, and the power reception coil 51 includes a stacked plurality of spiral coil layers 52a and 52b.

4. 发明申请

US20230046260A1 ROLLING BEARING FOR AIR TURBINE 有权
公开(公告)号：US20230046260A1
公开(公告)日：2023-02-16
申请号：US17789003
申请日：2020-12-25
申请人： NSK LTD.
发明人： Takuya OYAMA , Hironori SUZUKI
IPC分类号： F16C33/78 , F16C19/16
摘要： A rolling bearing includes an outer ring, an inner ring, a plurality of rolling bodies, and a seal member. An outer peripheral portion of the seal member is fixed by a retaining ring to a groove portion formed on an inner peripheral surface of the outer ring and an inner peripheral portion of the seal member is elastically deformable. The seal member includes an inclined portion. 1≤Ts/Sct≤10 is satisfied when Ts is a circumferential gap of the retaining ring at a time when the seal member and the retaining ring are attached to the groove portion of the outer ring and Sct is an axial thickness of a part of the seal member in contact with the retaining ring.

5. 发明申请

US20230042787A1 NOISE CANCELLER, ABNORMALITY DIAGNOSIS DEVICE, AND NOISE CANCELLATION METHOD 有权
公开(公告)号：US20230042787A1
公开(公告)日：2023-02-09
申请号：US17793531
申请日：2021-01-18
申请人： NSK LTD.
发明人： Juntaro SAHARA , Shunichi OSHIMA
IPC分类号： G10K11/178
摘要： A noise canceler includes a signal obtaining unit that obtains an observation signal obtained by sampling vibration of an apparatus; a signal delay unit that obtains a delay signal by delaying the observation signal obtained by the signal obtaining unit; and a Kalman filter processing unit that applies, to the observation signal and the delay signal, a Kalman filter that adapts a filter coefficient so as to reduce a residual signal between the observation signal and an estimated signal estimated based on the observation signal and the delay signal by an adaptive filter that incorporates the Kalman filter, and outputs the residual signal.

6. 发明授权

US11564772B2 Rolling bearing, bearing unit for air turbine, and air turbine handpiece for dental use 有权
公开(公告)号：US11564772B2
公开(公告)日：2023-01-31
申请号：US16080490
申请日：2017-03-07
申请人： NSK LTD.
发明人： Toru Nakahara , Atsuhiro Yamamoto , Shoshi Miyazaki
IPC分类号： A61C1/18 , F16C19/06 , A61C1/05 , F16C33/78 , F16J15/3204
摘要： When the compressed air is not applied, an inclined surface, which is positioned at an upstream side with respect to the supply direction of the compressed air, of the lip part is in contact with the inclined surface of the inner ring. When the compressed air is applied, a contact area between the inclined surface, which is positioned at the upstream side with respect to the supply direction of the compressed air, of the lip part and the inclined surface of the inner ring becomes smaller, as compared to when the compressed air is not applied.

7. 外观设计

USD975734S1 Display screen or portion thereof with graphical user interface 有权
公开(公告)号：USD975734S1
公开(公告)日：2023-01-17
申请号：US29796689
申请日：2021-06-25
申请人： NSK LTD.
设计人： Norifumi Ikeda

8. 发明申请

US20220416580A1 WIRELESS POWER RECEPTION SYSTEM, MOVING BODY, AND WHEEL 有权
公开(公告)号：US20220416580A1
公开(公告)日：2022-12-29
申请号：US17754671
申请日：2020-09-10
申请人： THE UNIVERSITY OF TOKYO , BRIDGESTONE CORPORATION , NSK Ltd.
发明人： Hiroshi FUJIMOTO , Osamu SHIMIZU , Keizo AKUTAGAWA , Yasumichi WAKAO , Isao KUWAYAMA , Daisuke GUNJI
IPC分类号： H02J50/10 , B60L53/20 , B60L9/18 , H02J50/00
摘要： A wireless power reception system 1 includes: a power reception device 5 including a power reception coil 51 that receives power supplied wirelessly from a power transmission coil 41 of a power transmission device 4 installed in a road surface, at least a portion of the power reception coil 51 being housed in a wheel 3 of a moving body 2; and a driving device 61 which is installed in the wheel 3 and which drives the wheel 3 with power received by the power reception device 5, wherein the power reception device 5 is provided with a converter 56a and an inverter 56b, at least a portion of the converter 56a and at least a portion of the inverter 56b are housed in the wheel 3, the converter 56a is positioned vertically above the power reception coil 51, and the inverter 56b is positioned vertically above the converter 56a.

9. 发明申请

US20220371651A1 POWER TRANSMISSION DEVICE 有权
公开(公告)号：US20220371651A1
公开(公告)日：2022-11-24
申请号：US17774629
申请日：2020-10-22
申请人： NSK Ltd.
发明人： Yuta CHIHARA , Hironari SAKODA , Takuya MIWA
IPC分类号： B62D5/04 , F16H25/22
摘要： A power transmission device including a housing and a ball screw device including a nut, a screw shaft, and a plurality of balls. The device includes a pulley device including a driving pulley configured to be driven by receiving power transmitted from a power source, a driven pulley fixed to the nut, and a belt wound around outer peripheral surfaces of the driving pulley and the driven pulley. The device also includes a first bearing and a second bearing disposed between the housing and the nut in a center axis direction parallel with a center axis of the nut; and a preload applying member configured to apply preloads to the first bearing and the second bearing. The first bearing and the second bearing are respectively disposed on both sides of the driven pulley to be a face-to-face combination, and each of the first bearing and the second bearing includes an outer ring engaged with the housing.

10. 发明申请

US20220363304A1 OUTER TUBE WITH HOLE COVER 有权
公开(公告)号：US20220363304A1
公开(公告)日：2022-11-17
申请号：US17772779
申请日：2020-11-05
申请人： NSK LTD.
发明人： Seiichi MORIYAMA , Keisuke NAKAO , Kaname YASUDA , Naofumi FUJITA
IPC分类号： B62D1/20 , F16J15/52
摘要： Provided is an outer tube including a solid-shaped male-shaft portion and a bottomed cylindrical female-tube portion integrally formed with the male shaft portion. A hole cover is externally fitted to the female-tube portion and closes a gap between a dash panel separating the vehicle cabin interior and the vehicle cabin exterior of a vehicle body and the outer tube. In an assembled state in the vehicle body, the solid male-shaft portion is arranged in the vehicle cabin exterior, and an opening portion of a slide hole provided in the female-tube portion is arranged in the vehicle cabin interior.

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