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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.
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.
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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
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公开(公告)号：US20220416580A1
公开(公告)日：2022-12-29
申请号：US17754671
申请日：2020-09-10
发明人： Hiroshi FUJIMOTO , Osamu SHIMIZU , Keizo AKUTAGAWA , Yasumichi WAKAO , Isao KUWAYAMA , Daisuke GUNJI
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.
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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
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.
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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
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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公开(公告)号：US20220355856A1
公开(公告)日：2022-11-10
申请号：US17621765
申请日：2021-02-05
申请人： NSK LTD.
发明人： Keitarou TANAKA
摘要： A vehicle steering device includes a target steering torque generation unit configured to generate target steering torque for a reaction force motor, and a torque correction value calculation unit configured to generate a torque signal Tref_p in accordance with road surface reaction force acting on a steering wheel of a vehicle. The torque correction value calculation unit generates the torque signal Tref_p by separating estimated road surface reaction force into a low-frequency component and a high-frequency component, providing level restriction on each of the low-frequency component and the high-frequency component, and adding torque values converted from the low-frequency component and the high-frequency component after the level restriction. The target steering torque generation unit generates the target steering torque by adding the torque signal Tref_p and a torque signal Tref_a generated based on a predetermined basic map in accordance with at least a vehicle speed and a steering angle of the vehicle.
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公开(公告)号：US11493128B2
公开(公告)日：2022-11-08
申请号：US17632698
申请日：2020-12-11
申请人： NSK LTD.
摘要： A cam device having a drive cam and a driven cam; and a friction engagement device having at least one friction plate and at least one separation plate are provided. The friction engagement device is configured so as to be put into a connected state by pressing the friction plate and the separation plate against each other by the driven cam, and a disconnected state. Also provided are a rotation transmission state switching device having a first member and a second member coaxially arranged, and a mode selecting part configured to rotate or displace in the axial direction according to rotation of the drive cam. The rotation transmission state switching device has at least one mode of a free mode and a lock mode of the first member and the second member, and a one-way clutch mode.
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58.发明授权公开(公告)号：US11473620B2
公开(公告)日：2022-10-18
申请号：US17260301
申请日：2019-05-20
申请人： NSK LTD.
发明人： Kouhei Dobashi
IPC分类号： F16C25/06 , F16C35/073 , F16C35/077 , F16C19/54 , F16C25/08
摘要： In a housing that supports a rotating shaft via a rolling bearing which is subjected to predetermined position precompression, a wedge member, the radial thickness of which increases from the leading end towards the base end thereof, is inserted between the housing and the outer circumferential surface of the outer race of the rolling bearing and between the rotating shaft and the inner circumferential surface of an inner race of the rolling bearing, the wedge member being inserted from the leading end thereof along the radial direction of the rotating shaft. The wedge member is fixed by being fastened, ahead in the insertion direction, by bolts and nuts, so that precompression force along with predetermined position precompression is imparted to the rolling bearing.
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公开(公告)号：US11472479B2
公开(公告)日：2022-10-18
申请号：US17442431
申请日：2021-03-15
申请人： NSK LTD.
发明人： Tetsuya Kitazume
摘要： A hands-off detection device includes: a first steering angle acquisition unit configured to acquire a first steering angle of a steering wheel; a second steering angle acquisition unit configured to acquire a second steering angle of a steering mechanism connected to the steering wheel via a torsion bar; a steering angle estimation unit configured to obtain an estimation angle of the first steering angle in a state where the steering wheel is not being grasped on a basis of the second steering angle; and a grasping state determination unit configured to determine a grasping state of the steering wheel on a basis of the frequency component of a angle difference between the first steering angle and the estimation angle and a reference frequency component being the frequency component of the angle difference in the state where the steering wheel is not being grasped.
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公开(公告)号：US11465667B2
公开(公告)日：2022-10-11
申请号：US17261484
申请日：2019-07-16
申请人： NSK LTD.
发明人： Tatsuya Ishii
摘要： A rack housing has a concave portion first inclined surface 45 on the inner side surface of an engaging concave portion located on the opening side that is inclined in a direction toward the back side while going outward in the radial direction. The rack bush has a convex portion first inclined surface on the outer side surface of an engaging convex portion that faces the concave portion first inclined surface, and that is inclined in a direction toward the back side while going outward in the radial direction. The convex portion first inclined surface is pressed outward in the radial direction against the concave portion first inclined surface, and the other outer side surface of the engaging convex portion facing the back side is pressed in the axial direction against the other inner side surface of the engaging concave portion facing the opening side.
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