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公开(公告)号：US20170130768A1
公开(公告)日：2017-05-11
申请号：US15127945
申请日：2015-04-14
Applicant: NSK LTD.
Inventor： Yasuyuki MATSUDA , Tohru UEDA , Masafumi HIKIDA
CPC classification number: F16C19/522 , B60G15/068 , B60G17/019 , B60G2204/11 , B60G2204/418 , B60G2400/51 , B60G2400/60 , B60T7/042 , B60T7/12 , B60T7/18 , B60T8/18 , B60T8/1875 , B60T10/02 , F16C19/10 , F16C19/12 , F16C41/00 , F16C2233/00 , F16C2326/05 , F16D57/04 , G01G19/10 , G01L1/02 , G01L5/0009
Abstract: A bearing raceway ring (25) disposed near a mounting section (9) is disposed on the outer periphery of a circular cylinder section (19). A fluid-sealed chamber (40) in which a measurement liquid is hermetically enclosed is provided between a first member (8) and the bearing raceway ring (25) which is disposed near the mounting section (9). Pressure acting on the fluid to be measured changes as the bearing raceway ring (25) moves in the cylinder-axis direction, the bearing raceway ring (25) being disposed near the mounting section (9). The fluid-sealed chamber (40) is provided with a pressure sensor (44) capable of detecting a change in the pressure of the fluid to be measured.
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公开(公告)号：US20190381847A1
公开(公告)日：2019-12-19
申请号：US16488482
申请日：2018-10-12
Applicant: NSK LTD.
Inventor： Hiroyasu KUMAGAI , Yasuyuki MATSUDA
IPC: B60G7/00 , B60G17/015
Abstract: An extension-retraction link includes: a stationary shaft having a tubular shape; a movable shaft that can slide with respect to the stationary shaft; and an actuator that has a bearing unit supporting a screw shaft and moves the movable shaft. The stationary shaft includes: first to fourth bushes in contact with first to fourth plane surfaces of the movable shaft, respectively; a first elastic member pressing the third bush to the third plane surface; and a second elastic member pressing the fourth bush to the fourth plane surface. The bearing unit includes: a bearing in contact with the screw shaft; a bearing holder that fits in a mounting groove provided to the stationary shaft and holds the bearing; and a third elastic member located between a bottom surface of the mounting groove and the bearing holder.
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公开(公告)号：US20190168605A1
公开(公告)日：2019-06-06
申请号：US16324753
申请日：2018-02-16
Applicant: NSK LTD.
Inventor： Shin YAMAMOTO , Yasuyuki MATSUDA
Abstract: An electric vehicle drive device includes: a first motor; a second motor, and a transmission mechanism coupled to the first motor and the second motor and capable of switching a reduction ratio. The transmission mechanism includes a sun gear shaft coupled to the first motor. The first motor includes: a first stator core, a first rotor core disposed radially outward of the first stator core, and a first rotor holding member that couples the first rotor core and the sun gear shaft.
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公开(公告)号：US20190058372A1
公开(公告)日：2019-02-21
申请号：US16077843
申请日：2017-02-15
Applicant: NSK LTD.
Inventor： Shin YAMAMOTO , Yasuyuki MATSUDA
Abstract: A first motor includes a first member to be detected configured to rotate together with a first rotor core. A first rotation angle detector is coupled to the partition wall and faces the first member to be detected. A second motor includes a second member to be detected configured to rotate together with a second rotor core. A second rotation angle detector is coupled to the partition wall and facing the second member to be detected. A transmission mechanism is capable of switching a deceleration ratio. When seen from a direction of the rotation axis, a first line passing a root of the first signal line on a side of the first rotation angle detector and the rotation axis is overlapped with a second line passing a root of the second signal line on a side of the second rotation angle detector and the rotation axis.
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公开(公告)号：US20180361789A1
公开(公告)日：2018-12-20
申请号：US15780885
申请日：2016-10-31
Applicant: NSK LTD.
Inventor： Daisuke GUNJI , Yasuyuki MATSUDA
Abstract: An internal gear configuring a reduction gear is supported and fixed to a rotation side flange provided on an axially outer end portion of a hub, and the hub is rotationally driven based on a driving force input through the internal gear. Accordingly, since a drive shaft for rotationally driving the hub is not necessarily connected to a center hole of the hub, an electric generator and a wireless communication device can be disposed in an accommodating space having a large space provided on an axially inner side of the hub.
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Patent Agency Ranking
公开(公告)号：US20180297399A1
公开(公告)日：2018-10-18
申请号：US15762801
申请日：2016-09-23
Applicant: NSK LTD.
Inventor： Yasuyuki MATSUDA , Masafumi HIKIDA , Tetsu TAKEHARA , Hiroshi KAWAHARA , Ryuho MORITA , Shin YAMAMOTO
IPC: B60B27/00 , B60B27/02 , B60R16/03 , B60R16/033 , F16C19/18 , H01Q1/32 , H02K11/00 , H02K7/18 , H02J7/14
Abstract: A vehicle wheel supporting rolling bearing unit includes a bearing part having a stationary side bearing ring member which is supported and fixed to a suspension device and non-rotatable in a use state and a rotation side bearing ring member which is coupled and fixed to a vehicle wheel and rotate together with the vehicle wheel, an electric generator which generates electric power to be supplied to a sensor provided on the vehicle wheel, a battery which stores the electric power generated by the electric generator, and a wireless communication device which wirelessly communicates an output signal of the sensor with an electronic equipment arranged on a vehicle body side. The stator is supported and fixed to the stationary side bearing ring member, and the rotor, the battery and the wireless communication device are supported and fixed to the rotation side bearing ring member.
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公开(公告)号：US20160195183A1
公开(公告)日：2016-07-07
申请号：US14901063
申请日：2013-11-08
Applicant: NSK LTD.
Inventor： Yasuyuki MATSUDA , Daisuke Gunji , Masafumi Hikida , Kazutaka Tanaka , Tooru Ueda , Tetsu Takehara , Tomoharu Saito , Hiroyasu Yoshioka , Yuka Kaneko
CPC classification number: F16H57/0037 , F16C19/364 , F16C19/463 , F16C33/581 , F16C33/6677 , F16C2361/65 , F16F15/1216 , F16H2059/147 , G01L3/101 , G01L3/104 , G01L3/105 , G01L3/109
Abstract: A rotation transmission device having a high torque measurement resolution is provided. The rotation transmission device is provided with: a rotary-shaft unit (6) having a first and second rotary shaft (13, 14) combined so as to be coaxial and such that the end sections thereof can rotate relative to each other and a torsion bar (15) that is provided on the inner-diameter side of the first and second rotary shafts so as to be coaxial therewith, has one end section connected to the first rotary shaft (13), and has the other end section connected to the second rotary shaft (14); a first gear (7) fastened to the outer peripheral surface of the first rotary shaft (13); a second gear (8) fastened to the outer peripheral surface of the second rotary shaft (14); a coupling shaft (9) provided on the inner-diameter side of the torsion bar (15) so as to be coaxial therewith, having one end section connected to one rotary shaft (13), and having the other end section protruding from an end of the torsion bar (15) in the axial direction; a first encoder disposed and fixed on the other end of the coupling shaft (9) so as to be coaxial with the first rotary shaft (13) and having a first detected section (39); a second encoder fastened on the other end of the second rotary shaft (14) so as to be close to the first encoder and having a second detected section (40); and a sensor unit having at least one sensor (42a, 42b) that faces the first and second detected sections (39, 40).
Abstract translation: 提供具有高扭矩测量分辨率的旋转传递装置。 旋转传递装置设置有：具有第一和第二旋转轴（13,14）的旋转轴单元（6），该第一和第二旋转轴（13,14）组合成同轴的，并且使得其端部部分能够相对于彼此旋转， 设置在第一和第二旋转轴的内径侧以与其同轴的杆（15）具有连接到第一旋转轴（13）的一个端部，并且另一个端部连接到 第二旋转轴（14）; 固定到第一旋转轴（13）的外周面的第一齿轮（7）; 固定到第二旋转轴（14）的外周表面的第二齿轮（8）; 设置在扭杆（15）的内径侧以与其同轴的联接轴（9），其一端部连接到一个旋转轴（13），并且另一端部从端部 的扭杆（15）在轴向上; 第一编码器，设置并固定在所述联结轴（9）的另一端，以与所述第一旋转轴（13）同轴并具有第一检测部分（39）; 固定在所述第二旋转轴（14）的另一端以便靠近所述第一编码器并具有第二检测部分（40）的第二编码器; 以及传感器单元，其具有面向所述第一和第二检测部分（39,40）的至少一个传感器（42a，42b）。
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公开(公告)号：US20200182324A1
公开(公告)日：2020-06-11
申请号：US16617683
申请日：2018-10-30
Applicant: NSK LTD.
Inventor： Eisaku SUZUKI , Masafumi HIKIDA , Yasuyuki MATSUDA , Yosuke SHIMOMURA
IPC: F16F9/54 , B60G17/019 , G01G19/10 , B60G15/07
Abstract: A vehicle weight measurement device includes a moving body, an attachment body, a stopper ring provided between the moving body and the attachment body, and a rotation prevention part configured to prevent the moving body and the attachment body from rotating relative to each other. The stopper ring includes a fixing part fixed to one of the moving body and the attachment body and a separation and detachment prevention part provided at the other of the moving body and the attachment body and configured to prevent the moving body and the attachment body from separating and detaching, without inhibiting movement of the moving body. The rotation prevention part includes a pin fitted from the moving body to the attachment body.
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公开(公告)号：US20200173837A1
公开(公告)日：2020-06-04
申请号：US16626158
申请日：2017-12-20
Applicant: NSK LTD.
Inventor： Masafumi HIKIDA , Yasuyuki MATSUDA , Eisaku SUZUKI
Abstract: The vehicle weight measurement device includes a bottom plate in contact with an arm of a suspension device, a piston which presses a diaphragm configuring an oil chamber on an upper surface side of the bottom plate, and a pressure sensor which detects pressure of a measurement fluid in the oil chamber on an lower surface side of the bottom plate. The bottom plate includes a rotation-preventing mechanism with respect to the arm of the suspension device around the pressure sensor. A hanging circumferential edge portion is formed in a flange portion of the piston. A gap is interposed between the flange portion and the bottom plate. A protruding portion of the piston engaged in a cutout of a stopper ring and a protruding portion protruding to an upper surface side and engaged to the cutout so as to be movable in a longitudinal direction are provided.
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公开(公告)号：US20200148264A1
公开(公告)日：2020-05-14
申请号：US16609070
申请日：2018-10-12
Applicant: NSK LTD.
Inventor： Yuya DAIKOKU , Yasuyuki MATSUDA
Abstract: A universal joint includes: a housing; an arm, part of which is located inside the housing; an external bush that is located between an inner circumferential surface of the housing and the arm; an internal bush that is located on the opposite side of the external bush with the arm being interposed therebetween; and a supporting member that supports the internal bush. The arm includes: an arm convex surface that is a spherical convex surface; and an arm concave surface that is a spherical concave surface. The external bush includes a bush concave surface that is a spherical concave surface in contact with the arm convex surface. The internal bush includes a bush convex surface that is a spherical convex surface in contact with the arm concave surface.
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