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公开(公告)号：US20160047501A1
公开(公告)日：2016-02-18
申请号：US14782697
申请日：2013-12-19
Applicant: NSK LTD.
Inventor： Hiroshi KAWAHARA , Sumio SUGITA
IPC: F16L33/207 , F16L13/14
CPC classification number: F16L33/2076 , B21D39/04 , B23P11/005 , F16B17/004 , F16D1/072 , F16D1/0858 , F16D2300/18 , F16L13/141 , F16L13/146
Abstract: Provided are: a joining structure capable of suitably obtaining joining strength between components which compose the joining structure; and a joining method thereof. For this purpose, a joining structure (1) includes: a shaft member (10); and a thin-walled cylindrical member (20) that fits an inner circumferential surface thereof to an outer circumferential surface of the shaft member (10). The thin-walled cylindrical member (20) has: a first crimped portion (21), in which an axially intermediate portion is reduced in diameter in a radial direction, and is crimped to the shaft member (10); and a second crimped portion (22), in which an end surface (20a) is folded radially inward, and is crimped to the shaft member (10).
Abstract translation: 提供：能够适当地获得构成接合结构的部件之间的接合强度的接合结构体; 及其接合方法。 为此，接合结构（1）包括：轴构件（10）; 以及将其内周面配合到所述轴构件（10）的外周面的薄壁圆筒状构件（20）。 薄壁圆柱形构件（20）具有：第一卷曲部分（21），其中轴向中间部分在径向方向上的直径减小，并且被卷曲到轴构件（10）; 以及第二卷边部分（22），其中端面（20a）径向向内折叠并且被压接到所述轴构件（10）。
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公开(公告)号：US20230122978A1
公开(公告)日：2023-04-20
申请号：US17921173
申请日：2021-12-02
Applicant: NSK LTD.
Inventor： Satoshi INAGAKI , Sumio SUGITA
Abstract: A driving device includes a corrector, an actuator, and a position sensor. The actuator includes a nut connected to a movable part, a ball screw shaft onto which the nut is screwed, and a pulse motor that drives to rotate the ball screw shaft. The corrector includes a correction amount map in which a position correction amount for calibrating a predictable error is mapped for each position of the movable part. The corrector estimates an ideal movement position to which the movable part moves based on a command signal and refers to the correction amount map to calculate the position correction amount corresponding to a present position detected by the position sensor. The corrector generates a correction signal by correcting the command signal so as to reduce the difference between a corrected present position obtained by correcting the present position by the position correction amount and the ideal movement position.
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公开(公告)号：US20160089711A1
公开(公告)日：2016-03-31
申请号：US14891535
申请日：2013-12-19
Applicant: NSK LTD.
Inventor： Hiroshi KAWAHARA , Sumio SUGITA
CPC classification number: F16D1/072 , B21D39/048 , F16B7/0413 , F16B17/004 , F16D2300/18 , Y10T403/49 , Y10T403/7073
Abstract: To provide a joint structure capable of suitably joining members which compose the joint structure, and to provide a joining method thereof. The joint structure includes a shaft member, and a cylindrical member an inner surface of which is fitted to an outer surface of the shaft member. The cylindrical member includes first crimped portions which are crimped along axial grooves provided in an axial direction of the shaft member; and a second crimped portion which fits the axial grooves and is crimped along a circumferential groove, the circumferential groove being provided on a circumferential surface of the shaft member by reducing a diameter of an axially intermediate portion in a radial direction.
Abstract translation: 提供能够适当地接合构成接合结构的构件的接合结构，并提供其接合方法。 接头结构包括轴构件和圆筒构件，其内表面装配到轴构件的外表面。 所述圆柱形构件包括沿着轴构件的轴向设置的轴向槽压接的第一压接部; 以及第二卷曲部，其配合所述轴向槽并沿着周向槽卷曲，所述周向槽通过沿径向减小轴向中间部的直径而设置在所述轴构件的周向表面上。
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公开(公告)号：US20230122717A1
公开(公告)日：2023-04-20
申请号：US17920934
申请日：2021-12-02
Applicant: NSK LTD.
Inventor： Kohei SHIRAHAMA , Sumio SUGITA , Satoshi INAGAKI
Abstract: A robot mechanism is provided with a parallel link including a first output base, a first parallel link mechanism disposed on a first side of the first output base, and a second parallel link mechanism and an end effector disposed on a second side of the first output base. The first parallel link mechanism includes a first driver that generates a linear motion output and a second driver that generates a linear motion output. A tilting link mechanism including a mass body that generates a second moment load in a direction to reduce a first moment load exerted on the first parallel link mechanism by the weight of the second parallel link mechanism and the end effector is connected to the first driver and the second driver.
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公开(公告)号：US20190039650A1
公开(公告)日：2019-02-07
申请号：US16072073
申请日：2017-02-09
Applicant: NSK Ltd.
Inventor： Tomonori SATO , Sakae NEJO , Nobuhiro MITSUISHI , Sumio SUGITA
CPC classification number: B62D15/0265 , B62D5/008 , B62D5/0463 , B62D5/0472 , B62D6/002 , B62D6/003 , B62D6/008 , B62D15/025
Abstract: To provide a vehicle steering control device capable of suppressing influence of a torque generated during driving support by an EPS device on steering of a steering wheel performed by a driver. The vehicle steering control device includes an EPS controller (first controller) that controls a speed reduction mechanism and a differential mechanism controller (second controller) that controls a differential mechanism. In addition, the vehicle steering control device has a first steering assist mode of assisting driver's steering and a second steering assist mode of performing steering independently from the driver's steering. In the second steering assist mode, the second controller controls the differential mechanism so as to cancel a torque applied to a rack-and-pinion side of the differential mechanism from the speed reduction mechanism controlled by the first controller.
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Patent Agency Ranking
公开(公告)号：US20180072343A1
公开(公告)日：2018-03-15
申请号：US15561664
申请日：2016-04-12
Applicant: NSK Ltd.
Inventor： Sumio SUGITA , Atsushi MAEDA , Nobuhiro MITSUISHI
CPC classification number: B62D5/0463 , B62D5/008 , B62D5/0472 , B62D6/008 , B62D6/08 , B62D15/0265
Abstract: A steering device includes: a variable actuator capable of changing an angle ratio between a steering angle of a steering wheel and a turning angle of a turning wheel; a steering auxiliary mechanism arranged between the variable actuator and the turning wheel to apply steering auxiliary force to a steering mechanism; a torque angle sensor to detect steering torque to be inputted into the steering mechanism. The steering auxiliary mechanism is driven such that the steering auxiliary force in accordance with the steering torque is generated, and, when an avoidance instruction is inputted, an automatic steering control is performed to drive-control the steering auxiliary mechanism so as to run at the turning angle specified by steering position instruction to be inputted. The angle ratio of the variable actuator is adjusted so as to suppress reaction force to be transmitted to the steering wheel by performing the automatic steering control.
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公开(公告)号：US20190381495A1
公开(公告)日：2019-12-19
申请号：US16483112
申请日：2018-02-05
Applicant: NSK LTD.
Inventor： Nobuaki TANAKA , Sumio SUGITA , Richard HOUSE
Abstract: A collection pipette that collects a microscopic object includes a first tube part, a second tube part connected to an end of the first tube part, and a third tube part connected to the other end of the first tube part. The longitudinal direction of the third tube part intersects with the longitudinal direction of the first tube part, and is parallel to the longitudinal direction of the second tube part. For example, the length in the longitudinal direction of the third tube part is shorter than the length in the longitudinal direction of the first tube part.
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公开(公告)号：US20190023318A1
公开(公告)日：2019-01-24
申请号：US16072272
申请日：2017-02-09
Applicant: NSK LTD.
Inventor： Nobuhiro MITSUISHI , Sakae NEJO , Sumio SUGITA , Tomonori SATO
Abstract: To provide a vehicle steering control device capable of alleviating discomfort caused by mismatch between a steering angle of a steering wheel and a steered angle of a drive wheel generated by automatic steering using an EPS device. The vehicle steering control device has a first steering assist mode of assisting driver's steering and a second steering assist mode of performing steering independently from the driver's steering. A second controller, performs phase shift suppression control to suppress a relative shift of a phase of a differential mechanism on a steering wheel side with respect to a reference phase on the steering wheel side of the differential mechanism corresponding to a phase on a rack-and-pinion side of the differential mechanism in the first steering assist mode.
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9.发明申请公开(公告)号：US20180154926A1
公开(公告)日：2018-06-07
申请号：US15578064
申请日：2016-06-24
Applicant: NSK Ltd.
Inventor： Kazuhiro OHIRA , Masaki KUWAHARA , Sumio SUGITA , Shigeyuki UEMATSU
CPC classification number: B62D5/0406 , B62D5/04 , B62D15/02 , G01B7/30 , G01D5/244 , G01D5/2451 , G01L3/10 , G01L3/104
Abstract: There are provided a relative angle detection device suitable for expanding a torque detection range, and a torque sensor, an electric power steering device and a vehicle including the relative angle detection device. Based on a first sine signal representing sin(θos+Δθ) and a first cosine signal representing cos(θos+Δθ) in accordance with a rotation angle(θis) of a first multipolar ring magnet that synchronously rotates with an input shaft from between the coaxially arranged input shaft and an output shaft, and based on a second sine signal representing sin θos and a second cosine signal representing cos θos in accordance with a rotation angle(θos) of a second multipolar ring magnet that synchronously rotates with the output shaft, sin Δθ and cos Δθ are calculated in accordance with a relative angle(Δθ) between the input shaft and the output shaft, and from Δθ=arctan(sin Δθ/cos Δθ), the relative angle(Δθ) is calculated.
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公开(公告)号：US20170210416A1
公开(公告)日：2017-07-27
申请号：US15329774
申请日：2016-05-09
Applicant: NSK Ltd.
Inventor： Kazuyuki HATANAKA , Sumio SUGITA
Abstract: To provide a torque detection device which allows less deformation of detection coils than in the conventional techniques in axially pressing and holding in yokes, coil bobbins around which the detection coils are wound. A torque sensor includes a pair of coils, coil bobbins around which the coils are respectively wound, yokes which respectively hold the coil bobbins, one yoke cover fitted by pressing into inner diameters of the yokes, and pressing portions which are formed to project radially and outward at a plurality of circumferential positions of a radial outer end portion of respective flange portions of the coil bobbins, and act between the coil bobbins to axially press the coil bobbins during assembly.
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