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141.发明申请公开(公告)号：US20200377141A1
公开(公告)日：2020-12-03
申请号：US16427664
申请日：2019-05-31
发明人： Mark Bugosh , Brian A. Urbach
摘要： A vehicle steering assembly comprises a steering member with a rack portion having rack teeth, a pinion gear having pinion teeth configured to be engaged with the rack teeth, a yoke support assembly supporting the steering member in a housing, and a ball nut operatively connected to the steering member. The pinion gear divides the steering member into a first side having the yoke support assembly outboard of an area of engagement of the rack and pinion teeth and a second side having the ball nut. The yoke support assembly includes complementary convex and concave bearing surfaces configured to provide relative rotation between the convex and concave bearing surfaces. The yoke assembly also includes a spring member configured to produce a variable rate spring force to maintain an engagement between the rack and pinion teeth.
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公开(公告)号：US20200079418A1
公开(公告)日：2020-03-12
申请号：US16128862
申请日：2018-09-12
发明人： James Philip Cooper , Jack E. Barry , Rohit Kadam , Daniel Steven Payne , Joseph Washnock , Jennifer Laz
摘要： An assembly includes a housing and a steering rack supported by the housing. The assembly includes a plug supported by the housing. The assembly includes a yoke supported by the housing between the steering rack and the plug. The assembly includes a monolithic dampener between the plug and the yoke, the monolithic dampener extending away from the plug toward the steering rack along the yoke.
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公开(公告)号：US10508685B2
公开(公告)日：2019-12-17
申请号：US15571341
申请日：2016-03-30
申请人： OILES CORPORATION
发明人： Noboru Nakagawa , Kazuhiko Akeda
摘要： A sliding bearing 1 which is interposed between a tube 4 and a rack shaft 7 includes a bearing body 11 and two elastic rings 13 and 14 fitted on an outer surface 12 of the bearing body 11, and the bearing body 11 has slits 26 extending from an end face 22 to this side of an end face 24, slits 27 extending from the end face 24 to this side of the end face 22, an inner surface 33 having a sliding surface 28, and an outer surface 12 on which are formed grooves 34 respectively receiving the elastic rings 13 and 14 and projections 35 and 36 respectively provided on axial end portions 23 and 25 with the grooves 34 disposed therebetween.
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公开(公告)号：US10427707B2
公开(公告)日：2019-10-01
申请号：US15743558
申请日：2016-07-05
摘要： A dual-pinion electric power steering device has: a rack shaft that causes a turnable member to turn; a first pinion shaft to which a steering force from a steering wheel is transmitted; a first rack teeth disposed on the rack shaft and capable of meshing with the first pinion shaft; a second pinion shaft to which a rotational driving force from an assist motor is transmitted; a second rack teeth disposed on the rack shaft and capable of meshing with the second pinion shaft; a first pressing member disposed across the rack shaft from the first pinion shaft and configured to press the rack shaft toward the first pinion shaft; and a second pressing member disposed across the rack shaft from the second pinion shaft and configured to press the rack shaft toward the second pinion shaft. The first pressing member has a lower rigidity than the second pressing member.
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公开(公告)号：US20190193773A1
公开(公告)日：2019-06-27
申请号：US16206078
申请日：2018-11-30
发明人： Tae Yoon KIM
CPC分类号： B62D3/123 , F16H19/04 , F16H55/22 , F16H55/24 , F16H55/283
摘要： A supporting apparatus for a steering gear box includes a pressing yoke part for supporting a side surface of a rack bar to be engaged with a steering input gear in a shape to wrap the side surface of the rack bar, a supporting yoke part provided in a mounting groove together with the pressing yoke part, an elastic link part formed of an elastic material and extending from the pressing yoke part to be inserted into the supporting yoke part, a cover part provided at a position opposite to the supporting yoke part and shielding an inlet of the mounting groove, and a pressing part located between the supporting yoke part and the cover part and pressing the supporting yoke part by a predetermined elastic force.
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公开(公告)号：US20190016369A1
公开(公告)日：2019-01-17
申请号：US16133032
申请日：2018-09-17
申请人： OILES CORPORATION
摘要： A rack guide for a rack and pinion steering device, a rack and pinion steering device, and a manufacturing method for a rack guide for a rack and pinion steering device have a simple configuration with a close contact property being kept between a rack guide and a rack guide base member to ensure quietness. A rack guide for a rack and pinion steering device includes: a casing; a pinion to be slidably supported by the casing; a rack bar having a rack tooth meshed with the pinion; a rack guide including an abutment portion to which the rack bar is to be slidably abutted and a recessed portion, which is continued to the abutment portion, to be spaced from the rack bar; a rack guide base member for receiving the rack guide; and an urging unit to urge the rack guide against the rack bar through the rack guide base member.
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公开(公告)号：US20190016368A1
公开(公告)日：2019-01-17
申请号：US16022095
申请日：2018-06-28
发明人： Kianmin DJIE
摘要： A rack-and-pinion steering gear for a motor vehicle allows adjustment of an inclination angle between the rack and pinion at the point of contact therebetween to reduce noise. A yoke is spring-biased against the rack to urge rack into engagement with the pinion. The yoke is supported in a bushing which can be adjusted within and relative to a housing such that the yoke moves in a plane parallel to a longitudinal axis of the rack and to a longitudinal axis of the pinion shaft. The yoke engages the rack to permit steering-type movement of the rack relative to the yoke along the rack longitudinal axis, but movement of the yoke parallel to the pinion shaft longitudinal axis forces the portion of the rack contacting the yoke to move along with the yoke, thereby adjusting the inclination angle between the rack and the pinion.
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公开(公告)号：US10150498B2
公开(公告)日：2018-12-11
申请号：US15667728
申请日：2017-08-03
申请人： JTEKT CORPORATION
发明人： Kuniaki Mitsui
摘要： A ratio of the distance by which a rack shaft moves in a first direction relative to the angle by which a pinion shaft rotates in a circumferential direction is defined as a stroke ratio. The stroke ratio is larger when the pinion meshes with one of a third rack and a fifth rack than when the pinion meshes with a first rack. The stroke ratio changes while the pinion moves on one of a second rack and a fourth rack. A clearance defined between a rack guide and a guide plug is smaller when the pinion meshes with one of the third rack and the fifth rack than when the pinion meshes with the first rack. The clearance defined between the rack guide and the guide plug changes while the pinion moves on one of the second rack and the fourth rack.
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公开(公告)号：US20180297628A1
公开(公告)日：2018-10-18
申请号：US15947040
申请日：2018-04-06
申请人： JTEKT CORPORATION
发明人： Yuki BANDO , Akihisa UMETANI
CPC分类号： B62D3/123 , B62D3/12 , F16C29/02 , F16C33/046 , F16H55/285
摘要： A steering system includes a rack shaft, a tubular rack housing, and a tubular rack bushing. The rack bushing is interposed between the outer surface of the rack shaft and the inner surface of the rack housing. The rack bushing supports the rack shaft such that the rack shaft is slidable in the axial direction. The rack housing includes an annular groove on its inner surface. The rack bushing includes a collar. a through slit. and first non-through slits. The collar protrudes radially outward from substantially the entire circumference of the rack bushing. The collar is fitted into the annular groove. The through slit passes through the rack bushing in the axial direction. Each first non-through slit extends in the axial direction such that the first non-through slit passes through a portion of the rack bushing whose axial position corresponds to the axial position of the collar.
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公开(公告)号：US20180257696A1
公开(公告)日：2018-09-13
申请号：US15903409
申请日：2018-02-23
申请人： JTEKT CORPORATION
发明人： Tetsuo IKEDA , Atsushi HORIYAMA
CPC分类号： B62D3/123 , B62D3/126 , F16H19/04 , F16H55/283
摘要： A rack guide is movably housed in a housing hole of a housing. A plug is screwed to an outer opening end portion of the housing hole. An urging member is interposed between the rack guide and the plug. External threads on the outer peripheral surface of the plug are screwed to internal threads at the outer opening end portion of the housing hole. The root portion of the external threads includes an interference portion that interferes with a crest portion of the internal threads.
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