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公开(公告)号:US20240286667A1
公开(公告)日:2024-08-29
申请号:US18572077
申请日:2021-06-25
发明人: Naofumi KAWAMURA , Hiroaki SUZUKI , Tetsuya EBISU , Yuki FUJIOKA , Tomonori SUGIURA , Kosuke ITO , Takahiro BAITO , Takao NAKAAKI , Yoshiaki MURAKAMI , Kazuhisa ASAKAWA
摘要: A steering column device includes a lower tube that is attached to a vehicle body so as to be pivotable in an up-down direction, a column shaft to which a steering wheel is attached, an upper tube that rotatably supports the column shaft and that also is attached to the lower tube so as to be movable in a front-rear direction, a motor for generating motor torque, a link mechanism that couples the lower tube and the upper tube so as to be capable of moving in conjunction, and a power transmission mechanism that acts to transmit the motor torque to the link mechanism. The link mechanism causes the pivoting of the lower tube in the up-down direction and the movement of the upper tube in the front-rear direction to be performed in conjunction, when the motor torque is transmitted to the link mechanism by the power transmission mechanism.
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公开(公告)号:US20240286666A1
公开(公告)日:2024-08-29
申请号:US18572007
申请日:2021-06-25
发明人: Naofumi KAWAMURA , Hiroaki SUZUKI , Tetsuya EBISU , Yuki FUJIOKA , Tomonori SUGIURA , Kosuke ITO , Takahiro BAITO , Takao NAKAAKI , Yoshiaki MURAKAMI , Kazuhisa ASAKAWA
CPC分类号: B62D1/16 , B62D5/0403 , B62D5/0409
摘要: A steering device includes a cylindrical support tube, a speed reducer, and a housing. The support tube includes a flange, and supports a steering shaft such that the steering shaft is rotatable. The speed reducer applies torque to the steering shaft. The housing includes a cylindrical portion that houses the speed reducer. The flange and the cylindrical portion are disposed coaxially, and coupled to each other by a bolt. The flange and the cylindrical portion include an engagement portion, at which the flange and the cylindrical portion are engaged with each other in a radial direction of the flange, at a different location from a location at which the bolt is provided.
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公开(公告)号:US20240271689A1
公开(公告)日:2024-08-15
申请号:US18569517
申请日:2022-03-10
发明人: Naofumi KAWAMURA , Hiroaki SUZUKI , Tetsuya EBISU , Yuki FUJIOKA , Tomonori SUGIURA , Kosuke ITO , Yasuhiro TANIOKA , Masayoshi SAKUDA , Takahiro BAITO , Takao NAKAAKI , Yoshiaki MURAKAMI , Takashi YAMAGUCHI , Kazuhisa ASAKAWA
CPC分类号: F16H55/12 , B62D5/0403 , F16H2055/065
摘要: A gear includes an annular sleeve and a tooth portion provided by injection molding to cover a part of the sleeve. The sleeve is a stacked body including a plurality of annular steel plates stacked in an axial direction of the sleeve.
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公开(公告)号:US20240286670A1
公开(公告)日:2024-08-29
申请号:US18571861
申请日:2022-02-09
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.
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公开(公告)号:US20190040945A1
公开(公告)日:2019-02-07
申请号:US16046155
申请日:2018-07-26
申请人: JTEKT CORPORATION
发明人: Hirofumi UEDA , Naofumi KAWAMURA
IPC分类号: F16H57/12 , F16H1/16 , F16H57/04 , F16H57/022
摘要: An urging member urges a first end of a worm shaft toward a worm wheel via a first bearing. The worm shaft includes a tooth flank forming portion and a non-tooth flank forming portion formed between the first end and the tooth flank forming portion. In a housing, a shaft housing portion that houses the worm shaft includes a substantially straight portion and a reduced diameter portion. The substantially straight portion has a substantially constant bore diameter, and extends in an axial direction of the worm shaft. The reduced diameter portion is arranged on the first end side with respect to the substantially straight portion, and has a bore diameter reduced from a position that overlaps tooth flanks in the axial direction to a position that overlaps the non-tooth flank forming portion in the axial direction.
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公开(公告)号:US20210262529A1
公开(公告)日:2021-08-26
申请号:US17168685
申请日:2021-02-05
申请人: JTEKT CORPORATION
发明人: Naofumi KAWAMURA , Hideyuki HONKADO
摘要: A shaft coupling includes a first coupling member, a second coupling member, and a cushioning member. The first coupling member includes first protrusions. The second coupling member includes second protrusions. The cushioning member includes a plurality of radiating portions. When the first coupling member and the second coupling member are arranged coaxially and the first coupling member and the second coupling member are in an unloaded state, predetermined paired facing surfaces have a minimum clearance angle present on a radially outer side with respect to a center of the radiating portion in a radiating direction. The predetermined paired facing surfaces are at least one of first paired facing surfaces and second paired facing surfaces.
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公开(公告)号:US20240286665A1
公开(公告)日:2024-08-29
申请号:US18571820
申请日:2021-06-25
发明人: Naofumi KAWAMURA , Hiroaki SUZUKI , Tetsuya EBISU , Yuki FUJIOKA , Tomonori SUGIURA , Kosuke ITO , Takahiro BAITO , Takao NAKAAKI , Yoshiaki MURAKAMI , Kazuhisa ASAKAWA
CPC分类号: B62D1/16 , B62D5/0403 , B62D5/0409
摘要: A steering system includes a support tube including a flange and a housing including a cylindrical portion housing a speed reducer. The support tube includes a column bracket attached to a vehicle body. The housing is supported by a support shaft in such a manner that the housing can rotate with respect to the vehicle body. The flange and the cylindrical portion are connected to each other by bolts. The flange has insertion holes into which the bolts are inserted. Clearance that allows relative rotation between the flange and the cylindrical portion is present between the outer peripheral surface of the bolt and the inner peripheral surface of the insertion hole of the flange. An elastic body that reduces the relative rotation between the flange and the cylindrical portion is interposed in a compressed state between the bolt and the flange.
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公开(公告)号:US20180266542A1
公开(公告)日:2018-09-20
申请号:US15915757
申请日:2018-03-08
申请人: JTEKT CORPORATION
发明人: Naofumi KAWAMURA , Tetsushi NOGUCHI
IPC分类号: F16H57/12 , F16H57/023 , F16H57/039 , F16H57/021 , F16H1/16 , B62D5/04 , F16H57/022
CPC分类号: F16H57/12 , B62D5/0403 , B62D5/0409 , F16H1/16 , F16H55/24 , F16H57/021 , F16H57/022 , F16H57/023 , F16H57/039 , F16H2057/005 , F16H2057/0062 , F16H2057/02082 , F16H2057/0213 , F16H2057/0222 , F16H2057/126 , F16H2057/127
摘要: In a worm reducer, an elastic member urges a worm shaft housed in a housing toward a worm wheel. In a method for manufacturing the worm reducer, the elastic member is arranged in a recess formed on the inner face of the housing. Then, a jig is inserted into the housing, and the elastic member is compressed by the jig. In the state in which the elastic member is compressed by the jig, the worm shaft is inserted into the housing. Then, the jig is removed from the housing.
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公开(公告)号:US20170036691A1
公开(公告)日:2017-02-09
申请号:US15216030
申请日:2016-07-21
申请人: JTEKT CORPORATION
发明人: Arata KIKUCHI , Naofumi KAWAMURA , Naoji KAWASOKO
CPC分类号: B62D5/043 , B62D3/04 , B62D5/0454 , F16D3/68 , F16D11/10
摘要: A shaft coupling structure includes a rotating shaft, a worm shaft, a first member, a second member, and an intermediate member that is an elastic member. The intermediate member is interposed between the first member and the second member. Coupling protrusions of the first member that extend in an axial direction are each inserted between second radial protrusions of the intermediate member and between a plurality of first radial protrusions of the second member. Protruding portions of the first radial protrusions engage with the corresponding recessed portions of the second radial protrusions in the axial direction. When a relative rotation angle between the first member and the second member is smaller than a predetermined angle, ends of each of the second radial protrusions in a circumferential direction each projects in the circumferential direction with respect to a corresponding end of the corresponding first radial protrusion in the circumferential direction.
摘要翻译: 轴联结构包括旋转轴,蜗杆轴,第一构件,第二构件和作为弹性构件的中间构件。 中间构件插入在第一构件和第二构件之间。 沿轴向方向延伸的第一构件的联接突起分别插入在中间构件的第二径向突起之间和第二构件的多个第一径向突起之间。 第一径向突起的突出部与轴向的第二径向突起的相应凹部接合。 当第一构件和第二构件之间的相对旋转角度小于预定角度时,每个第二径向突起在圆周方向上的端部各自相对于相应的第一径向突起的相应端部在圆周方向上突出 在圆周方向。
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公开(公告)号:US20160319906A1
公开(公告)日:2016-11-03
申请号:US15133541
申请日:2016-04-20
申请人: JTEKT CORPORATION
发明人: Naofumi KAWAMURA
IPC分类号: F16H1/16 , B62D5/04 , F16H57/12 , F16H57/039 , F16H57/021
CPC分类号: F16H1/16 , B62D5/0409 , B62D5/0454 , F16H55/24 , F16H57/021 , F16H57/039 , F16H57/12 , F16H2057/0213 , F16H2057/127
摘要: A worm reduction gear includes a bias member that biases a second end of a worm shaft in such a direction that the second end approaches a worm wheel. A guide member that guides movement of the second end is held in a holding hole in a housing. The holding hole has an opening at an end of the housing. The guide member includes a ring portion fitted in the holding hole to guide movement of the second end and a closing portion that closes an end of the ring portion and thus an opening of the holding hole.
摘要翻译: 蜗杆减速齿轮包括偏压构件,该偏压构件沿着第二端接近蜗轮的方向偏压蜗杆轴的第二端。 引导第二端的运动的引导构件保持在壳体中的保持孔中。 保持孔在壳体的端部具有开口。 引导构件包括装配在保持孔中以引导第二端的运动的环形部分和封闭环部分的端部并因此封闭保持孔的开口的封闭部分。
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