公开(公告)号：US12110067B2

公开(公告)日：2024-10-08

申请号：US17139186

申请日：2020-12-31

申请人： ZF Friedrichshafen AG

发明人： Kevin Boyle

IPC分类号： B62D5/04 ,  B62D7/18 ,  B62D7/20 ,  F16C19/36 ,  F16H37/02

CPC分类号： B62D5/0454 ,  B62D7/18 ,  B62D7/20 ,  F16C19/364 ,  F16H37/02 ,  F16H2702/02

摘要： An electric commercial vehicle power steering system includes an input shaft, an electric motor, and a planetary gear set, a drive coupling, and an output shaft. A first one of a sun gear, a planet carrier, and a ring gear of the planetary gear set is connected to and rotatable with a rotor of the electric motor, and a second one of the sun gear, the planet carrier, and the ring gear of the planetary gear set is connected to and rotatable with a first gear of the drive coupling. A second gear of the drive coupling is connected to and rotatable with the input shaft. A globoidal worm drive is arranged between the input shaft and the output shaft. The globoidal worm drive couples the input shaft to the output shaft such that the output shaft is rotatable with the input shaft via the globoidal worm drive.

公开(公告)号：US20240294207A1

公开(公告)日：2024-09-05

申请号：US18268811

申请日：2021-11-26

申请人： KNORR-BREMSE COMMERCIAL VEHICLE SYSTEMS JAPAN LTD.

发明人： Hiroki SAITO ,  Shinji NAKAMURA

IPC分类号： B62D5/04 ,  B62D5/083

CPC分类号： B62D5/0454 ,  B62D5/083

摘要： A steering device includes: a steering shaft; a transmitting mechanism configured to transmit the rotation of the steering shaft to a steered wheel; a power cylinder; a rotary valve configured to selectively supply a hydraulic fluid to the pair of the fluid chambers in accordance with the rotation of the steering shaft; and an electric motor configured to provide a rotation force through a speed reduction device to the steering shaft, the steering shaft including a first shaft connected to the steering wheel, and a second shaft connected to the first shaft, and configured to output the rotation force inputted from the first shaft, to the transmitting mechanism side, and the electric motor being connected through the speed reduction device to the second shaft.

公开(公告)号：US12077223B2

公开(公告)日：2024-09-03

申请号：US17577452

申请日：2022-01-18

申请人： HL MANDO CORPORATION

发明人： Kyeongho Lee

IPC分类号： B62D5/04

CPC分类号： B62D5/0454 ,  B62D5/0403

摘要： The present disclosure is direction to a stopper disposed in a driver for a steering apparatus which includes a worm gear, a bearing supporting rotation of the worm gear, and a damper buffering an impact of the bearing is provided, the stopper including: an annular body having a through hole therein allowing one side of the worm gear to pass through; and a leg on the annular body to protrude toward the damper along an axial direction of the worm gear.

公开(公告)号：US20240286670A1

公开(公告)日：2024-08-29

申请号：US18571861

申请日：2022-02-09

申请人： JTEKT CORPORATION ,  JTEKT COLUMN SYSTEMS CORPORATION

发明人： Hiroaki SUZUKI ,  Naofumi KAWAMURA ,  Tetsuya EBISU ,  Yuki FUJIOKA ,  Tomonori SUGIURA ,  Kosuke ITO ,  Takahiro BAITO ,  Takao NAKAAKI ,  Yoshiaki MURAKAMI ,  Kazuhisa ASAKAWA

IPC分类号： B62D5/04

CPC分类号： B62D5/0409 ,  B62D5/0454

摘要： A steering device includes a cylindrical support tube that rotatably supports a steering shaft, a speed reducer configured to apply a torque to the steering shaft, and a housing that includes a cylindrical portion housing the speed reducer. A flange of the support tube and the cylindrical portion are disposed coaxially and coupled to each other with a bolt. A bearing support member is fitted to an inner peripheral surface of the cylindrical portion. The steering shaft extends through the bearing support member. A bearing is disposed between an outer peripheral surface of the steering shaft and an inner peripheral surface of the bearing support member. The bearing support member includes a deformation allowing portion configured to allow elastic deformation of the bearing support member in a radial direction.

公开(公告)号：US11945518B2

公开(公告)日：2024-04-02

申请号：US17052963

申请日：2019-05-30

申请人： Hitachi Astemo, Ltd.

发明人： Hiroshi Fujita ,  Hirotoshi Uchibori

IPC分类号： B62D5/00 ,  B62D1/04 ,  B62D1/16 ,  B62D5/04

CPC分类号： B62D5/001 ,  B62D1/04 ,  B62D1/16 ,  B62D5/0454

摘要： A steer-by-wire steering device includes a first member, a second member, and stoppers. The first member is rotatable together with the input shaft, and includes a first protrusion protruding from the input shaft in the radial direction. The second member includes a second protrusion protruding on the trajectory of the first protrusion, and is rotatable together with the first member with the first protrusion being abutting the second protrusion. The stoppers are provided at respective positions capable of abutting on the trajectory of the second protrusion only when the second member is rotated by the first member.

公开(公告)号：US20230366436A1

公开(公告)日：2023-11-16

申请号：US18029245

申请日：2022-03-11

申请人： NSK LTD.

发明人： Seiji ICHIDA

IPC分类号： F16D1/072 ,  H02K7/116

CPC分类号： F16D1/072 ,  H02K7/1166 ,  B62D5/0454

摘要： An assembly of a gear and rotating shaft, comprising: a gear having teeth on an outer peripheral surface thereof, and a center hole penetrating in an axial direction through a center portion thereof; and a rotating shaft including a serrated shaft portion having a male serration portion on an outer peripheral surface thereof and press-fitted into the center hole, and a guide shaft portion provided adjacent to one side in the axial direction of the serrated shaft portion and having an outer diameter capable of being internally fitted in the center hole with a clearance fit.

公开(公告)号：US20230286572A1

公开(公告)日：2023-09-14

申请号：US18120526

申请日：2023-03-13

申请人： HL MANDO CORPORATION

发明人： Hyunsik HAN

IPC分类号： B62D5/04 ,  B62D15/02

CPC分类号： B62D5/0454 ,  B62D15/0225

摘要： Disclosed herein are a sensor mounting structure of an electric power steering apparatus and an electric power steering apparatus having the same. The sensor mounting structure of an electric power steering apparatus includes a housing having a first accommodation part of which one side surface is open to accommodate a worm wheel and a second accommodation part which communicates with the first accommodation part and accommodates a worm shaft, a sensing unit disposed such that the sensing unit is spaced a predetermined distance from and faces the worm wheel, and a fastening means which fixes the sensing unit to the housing.

公开(公告)号：US11648978B2

公开(公告)日：2023-05-16

申请号：US16492268

申请日：2018-03-28

申请人： NSK LTD.

发明人： Toru Segawa ,  Ryou Oosawa ,  Toru Ishii ,  Ryota Sugihara ,  Takeshi Yamamoto ,  Akihide Fujita

IPC分类号： B62D5/04 ,  F16D3/74

CPC分类号： B62D5/0409 ,  B62D5/0454 ,  F16D3/74

摘要： A torque transmission joint to suppress occurrence of noise when reversing the direction of rotation of a drive shaft. A first transmission member fixed to an output shaft (the drive shaft) is engaged with a first elastic member such that a first gap in a circumferential direction is interposed, as well as with an intermediate transmission member such that a larger gap in the circumferential direction is interposed. A second transmission member fixed to an end portion of a worm is engaged with a second elastic member such that a second gap in the circumferential direction is interposed, as well as with the intermediate transmission member such that a larger gap in the circumferential direction is interposed. First and second annular convex portions are fitted to, respectively, first and second concave portions to prevent separation of the first and second elastic members with respect to the intermediate transmission member.

公开(公告)号：US20230142494A1

公开(公告)日：2023-05-11

申请号：US17520784

申请日：2021-11-08

申请人： ZF Active Safety and Electronics US LLC

发明人： Himadri Shastry ,  Ramesh Chirla

IPC分类号： B62D5/04 ,  B62D5/00

CPC分类号： B62D5/0403 ,  B62D5/0421 ,  B62D5/0454 ,  B62D5/046 ,  B62D5/0448 ,  B62D5/003

摘要： An apparatus for use in turning at least one steerable vehicle wheel includes a steering member rotatably supported in a housing. The steering member rotates relative to the housing about a first axis to effect turning movement of the at least one steerable vehicle wheel. A ball nut is connected with an externally threaded portion of the steering member. The steering member is rotatable relative to the ball nut assembly to axially move the ball nut assembly relative to the housing. An electric motor is operable to apply a rotational force to the steering member to urge the steering member to rotate relative to the housing. The electric motor has an output shaft extending along a second axis extending generally parallel to the first axis. A first gear is rotatable about the second axis with the output shaft of the motor. A second gear in meshing engagement with the first gear is rotatable about a third axis extending transverse to the second axis. A third gear is rotatable with the second gear about the third axis. A fourth gear in meshing engagement with the third gear is rotatable with the steering member relative to the housing.

公开(公告)号：US09932066B2

公开(公告)日：2018-04-03

申请号：US14990523

申请日：2016-01-07

申请人： IMS Gear Gmbh

发明人： Stephan Oberle ,  Gregor Mauerlechner

IPC分类号： F16H57/023 ,  B62D5/04 ,  F16H57/021 ,  F16H57/022 ,  B62D3/04 ,  F16H55/22 ,  F16H57/039

CPC分类号： B62D5/0454 ,  B62D3/04 ,  F16H55/22 ,  F16H57/021 ,  F16H57/022 ,  F16H57/039 ,  F16H2057/0213

摘要： A worm gearbox having a worm wheel is arranged, in a torsionally resistant manner, on a steering shaft and rotates around a steering axis. A worm shaft is supported to rotate around a rotational axis, with the worm shaft having an end on the engine side and an end away from the engine. Worm toothing engages the teeth of the worm wheel and when the worm shaft rotates around the rotational axis, the worm wheel and the steering shaft rotate around the steering axis. A gearbox housing supports the worm wheel and the worm shaft and allows them to rotate. A compensating element has a middle section, a rear end section connected to the gearbox housing and a front end section retaining the end away from the engine of the worm shaft or a holder accommodating the end away from the engine of the worm shaft.