公开(公告)号：US09758190B2

公开(公告)日：2017-09-12

申请号：US15034987

申请日：2014-11-18

Applicant: NTN CORPORATION

Inventor： Hirokazu Ohba ,  Yuya Yamaguchi

IPC: B62D7/14 ,  B62D3/12 ,  B62D7/09 ,  B62D7/15 ,  B60L1/00 ,  B60L15/20

CPC classification number: B62D7/14 ,  B60L1/003 ,  B60L15/2054 ,  B60L2220/44 ,  B60L2240/12 ,  B60L2240/24 ,  B60L2240/421 ,  B60L2240/423 ,  B60Y2400/84 ,  B62D3/12 ,  B62D7/09 ,  B62D7/1509 ,  B62D7/159 ,  Y02T10/645 ,  Y02T10/72 ,  Y02T10/7275

Abstract: It is desired to reduce the manufacturing cost of a vehicle while ensuring stability of travel of the vehicle. The vehicle includes a steering force generating means, and a steering device (10, 20) for steering right and left wheels (w). The steering device (10, 20) includes tie rods (12 and 22) connected, respectively, to the right and left wheels (w), and configured to steer the respective right and left wheels, a pair of rack bars (53 and 54) connected to the respective tie rods (12 and 22), and a rack bar moving means (60) capable of moving, by a same distance, the pair of rack bars (53 and 54) in one of opposite directions or in one and the other of the opposite directions, respectively, whereby the pair of rack bars (53 and 54) are moved simultaneously with each other under the steering force generated by the steering force generating means.

公开(公告)号：US10369880B2

公开(公告)日：2019-08-06

申请号：US15776557

申请日：2016-11-18

Applicant: NTN CORPORATION

Inventor： Masao Kurita ,  Hirokazu Ohba ,  Taisuke Igi

IPC: B60K6/485 ,  B60K6/48 ,  B60K7/00 ,  B60K17/04 ,  B62D7/18 ,  F16H1/06

Abstract: The power transmission device includes an input shaft that rotates about its axis together with a vehicle wheel. A driving gear is arranged coaxially with the input shaft so as to rotate about the axis of the input shaft together with the input shaft. A driven gear meshes with the driving gear, and configured to transmit a rotational force to an output shaft connected to a regenerative energy converter. A wheel bearing for the vehicle wheel supports the input shaft such that the input shaft is rotatable about its axis relative to the driven gear.

公开(公告)号：US09919730B2

公开(公告)日：2018-03-20

申请号：US14908786

申请日：2014-07-15

Applicant: NTN CORPORATION

Inventor： Hirokazu Ohba ,  Tomomi Ishikawa ,  Taisuke Igi ,  Yuya Yamaguchi

IPC: B62D3/12 ,  B62D5/04 ,  B62D7/15 ,  B60K7/00 ,  B62D7/14 ,  B62D7/18 ,  B60K17/04 ,  B60K17/30

CPC classification number: B62D3/126 ,  B60K7/0007 ,  B60K17/046 ,  B60K17/30 ,  B60K2007/0038 ,  B60K2007/0092 ,  B62D5/0421 ,  B62D7/14 ,  B62D7/1509 ,  B62D7/18

Abstract: A steering device includes tie rods connected to right and left wheels, and rack bars connected to the respective tie rods. The steering device is capable of simultaneously steering the right and left wheels to the right or left of the vehicle, by moving the rack bars to the right or left. A rack bar moving arrangement is provided which is capable of moving the rack bars in opposite directions by the same distance, and rack teeth are arranged along the opposite directions. The rack bar moving arrangement includes a synchronizing gear in mesh with the rack bars, and is configured to convert the movement of one of the rack bars in one of the opposite directions to the movement of the other of the rack bars in the other opposite direction, thereby steering the wheels in opposite directions.

公开(公告)号：US10668950B2

公开(公告)日：2020-06-02

申请号：US16069653

申请日：2017-01-16

Applicant: NTN CORPORATION

Inventor： Masao Kurita ,  Hirokazu Ohba

IPC: B62D17/00 ,  B60B35/14 ,  B60B35/18 ,  F16C33/64 ,  B62D5/04 ,  F16C19/54 ,  B62D7/20 ,  B60G7/00 ,  F16C19/50 ,  B60B35/16 ,  F16C19/18 ,  F16C23/04 ,  B60G17/016 ,  B60B27/00 ,  F16C19/06 ,  F16C33/58 ,  F16D3/223 ,  F16H25/22 ,  B60G17/015 ,  F16H25/20

Abstract: A wheel bearing device includes a wheel bearing supported by a knuckle; a hub ring having a boss portion; a second constant-velocity joint; and a first constant-velocity joint. The second constant-velocity joint includes an outer ring rotatably supported by the wheel bearing, and an inner ring coupled to the boss portion of the hub ring. The first constant-velocity joint includes an outer ring coupled to the outer race of the second constant-velocity joint, and an inner ring coupled to a drive shaft. The knuckle supports a pair of camber angle-adjusting linear motion actuators, and a pair of toe angle-adjusting linear motion actuators.

公开(公告)号：US10023228B2

公开(公告)日：2018-07-17

申请号：US15024518

申请日：2014-09-22

Applicant: NTN CORPORATION

Inventor： Hirokazu Ohba ,  Tomomi Ishikawa ,  Taisuke Igi ,  Yuya Yamaguchi

IPC: B62D3/12 ,  B62D7/15 ,  F16H19/04 ,  B60K7/00 ,  B60K17/04

Abstract: A steering device is provided which allows the vehicle to move laterally and turn with a small radius, without using a complicated mechanism, and capable of stably controlling the steering angle during such modes. The steering device includes a pair of rack bars connected, respectively, to front right and front left vehicle wheels or rear right and rear left vehicle wheels, synchronizing gears disposed between the pair of rack bars, a synchronizing gear box retaining the synchronizing gears, a rack case fixed to the frame of the vehicle, and a fixing mechanism for fixing the synchronizing gear box to the rack case.