公开(公告)号：US20210269083A1

公开(公告)日：2021-09-02

申请号：US17253889

申请日：2019-07-01

Applicant: NSK LTD.

Inventor： Masafumi Hikida ,  Yasuyuki Matsuda ,  Ryuho Morita

IPC: B62D5/00 ,  F16H1/22

Abstract: Provided is a reaction force applying device for a steering wheel that can be configured in a small size. The two-stage gears 3a, 3b have an intermediate shaft 9 arranged so as to be parallel to the steering shaft 1, a first teeth section 10 provided on the intermediate shaft 9 and engaging with the shaft side teeth section 4 of the steering shaft 1, and a second teeth section 11 arranged on a portion on the electric motor 2 side of the intermediate shaft 9 with respect to the first teeth section 10 and engaging with the motor side teeth section 8 of the electric motor 2.

公开(公告)号：US11002311B2

公开(公告)日：2021-05-11

申请号：US16623193

申请日：2017-12-15

Applicant: NSK LTD.

Inventor： Ryuho Morita ,  Yasuyuki Matsuda ,  Masafumi Hikida ,  Eisaku Suzuki ,  Shunsuke Suzuki ,  Yoshiya Mukai

IPC: B60G15/06 ,  F16C19/46 ,  G01G19/10 ,  F16F9/32

Abstract: A vehicle weight measurement device includes a diaphragm which covers an opening area of a groove portion of a mounting part to form an oil chamber of a predetermined space together with the groove portion; a pressure sensor which detects a change in pressure of measurement fluid in the oil chamber; a first piston which presses the diaphragm; a second piston which presses the first piston; and a bearing unit interposed between the second piston and a spring bush which receives one end of a spring of a suspension device and is relatively rotatable. The bearing unit includes a thrust needle bearing which swingably supports a load in a longitudinal direction of the suspension device, and a slide bush which does not receive a load in the longitudinal direction and receives a load in a radial direction while causing constant damping to swinging.

公开(公告)号：US09625332B2

公开(公告)日：2017-04-18

申请号：US14916668

申请日：2014-09-03

Applicant: NSK Ltd.

Inventor： Tomoharu Saito ,  Yasuyuki Matsuda ,  Daisuke Gunji ,  Masafumi Hikida ,  Kazutaka Tanaka ,  Tohru Ueda ,  Yuka Kaneko ,  Tetsu Takehara ,  Hiroyasu Yoshioka

IPC: G01L3/10 ,  G01L25/00

CPC classification number: G01L3/104 ,  G01L3/101 ,  G01L3/109 ,  G01L25/003

Abstract: In order to implement a structure capable of improving the resolution of torque measurement while preventing the plastic deformation of a torsion bar (15), an input-side stopper (61) having an uneven shape (gear shape) in the circumferential direction is provided in a portion of an input-side rotating body (55) that includes an input shaft (13) and an input gear (7), and an output-side stopper (63) having an uneven shape (gear shape) in the circumferential direction is provided in a portion of an output-side rotating body (56) that includes an output shaft (14) and an output gear (8). The input-side stopper (61) and the output-side stopper (63) are combined so as to be engaged to be able to transmit torque only when the torsional angle within the elastic range of the torsion bar (15) reaches a predetermined amount.

公开(公告)号：US20170227111A1

公开(公告)日：2017-08-10

申请号：US15436996

申请日：2017-02-20

Applicant: NSK LTD.

Inventor： Yasuyuki MATSUDA ,  Daisuke Gunji ,  Masafumi Hikida ,  Kazutaka Tanaka ,  Tooru Ueda ,  Tetsu Takehara ,  Tomoharu Saito ,  Hiroyasu Yoshioka ,  Yuka Kaneko

IPC: F16H57/00 ,  F16C19/36 ,  G01L3/10 ,  F16C33/58 ,  F16C33/66 ,  F16F15/121 ,  F16C19/46

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).

公开(公告)号：US20210261186A1

公开(公告)日：2021-08-26

申请号：US17254036

申请日：2019-07-01

Applicant: NSK LTD.

Inventor： Masafumi Hikida ,  Yasuyuki Matsuda ,  Ryuho Morita

IPC: B62D5/00 ,  B62D5/04 ,  B62D15/02

Abstract: Provided is a structure that together with being compact, allows a vehicle to be steered even when power is not supplied to a steering device and a turning device.
A reduction mechanism 28 for reducing and transmitting the motive power of the reaction force applying motor 6 to a steering shaft 5 is configured by a shaft-side teeth portion 9 of the steering shaft 5, two-stage gears 7a, 7b having a first teeth portion 26 and a second teeth portion 27, and a motor-side teeth portion 19 of the reaction force applying motor 6. A torque transmission mechanism 4 connects the steering shaft 5 and an input shaft 51 of a steering gear unit 49, and is capable of switching between a transmitting mode of mechanically transmitting torque between the steering shaft 5 and the input shaft 51 and a non-transmitting mode.

公开(公告)号：US10480635B2

公开(公告)日：2019-11-19

申请号：US15436996

申请日：2017-02-20

Applicant: NSK LTD.

Inventor： Yasuyuki Matsuda ,  Daisuke Gunji ,  Masafumi Hikida ,  Kazutaka Tanaka ,  Tooru Ueda ,  Tetsu Takehara ,  Tomoharu Saito ,  Hiroyasu Yoshioka ,  Yuka Kaneko

IPC: G01L3/00 ,  F16H57/00 ,  G01L3/10 ,  F16C33/66 ,  F16C19/36 ,  F16C19/46 ,  F16C33/58 ,  F16F15/121 ,  F16H59/14

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).

公开(公告)号：US10386253B2

公开(公告)日：2019-08-20

申请号：US15771313

申请日：2016-10-27

Applicant: NSK LTD.

Inventor： Hiroki Hamada ,  Yasuyuki Matsuda ,  Masafumi Hikida ,  Hiroshi Kawahara ,  Daisuke Gunji

IPC: F16C41/00 ,  G01L5/00 ,  B60B35/02 ,  F16C19/18 ,  G01P15/18 ,  B60B27/00 ,  F16C19/52

Abstract: A vehicle wheel supporting rolling bearing unit includes a stationary side bearing ring member, a rotation side bearing ring member, and plural rolling elements. The rotation side bearing ring member is provided with a first acceleration sensor, a second acceleration sensor, and a third acceleration sensor which are fixed on a virtual plane orthogonal to a center axis of the rotation side bearing ring member. The first acceleration sensor and the second acceleration sensor are arranged on a virtual line passing through a rotation center of the rotation side bearing ring member with a same distance from the rotation center while detection directions thereof are directed in a radial direction and are opposite to each other in the radial direction. The third acceleration sensor is arranged such that a detection direction thereof is non-parallel to the detection directions of the first acceleration sensor and the second acceleration sensor.

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

IPC: F16H57/00 ,  G01L3/10

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）。