公开(公告)号：US4619155A

公开(公告)日：1986-10-28

申请号：US485178

申请日：1983-04-15

Applicant: Takeshi Futaba

Inventor： Takeshi Futaba

IPC: B62D3/12 ,  F16H55/08 ,  F16H55/28 ,  F16H57/12 ,  F16H1/04 ,  B62D1/20 ,  B62D5/06

CPC classification number: F16H55/283 ,  B62D3/123 ,  F16H55/08 ,  F16H55/285 ,  Y10T74/1967

Abstract: A rack and pinion steering device which comprises a pinion operatively connected to a steering shaft of a vehicle, a long rod-like rack operatively connected to a steering lever mechanism of wheels of the vehicle, said rack having a group of rack teeth meshed with said pinion, and a spring device in contact with the back of said rack on the side opposite said pinion to resiliently bias said rack against said pinion. Said group of rack teeth includes a first portion close to and a second portion away from a center of said rack lengthwise which portions are defined symmetrically on opposite sides of said center, and said both second portions have a reference pitch line which inclines so as to approach the axis of said rack as it is away from said first portion adjacent thereto, whereby said rack gives rise to a flexure displacement under bending pressure caused by said spring device in connection with the meshed position between the rack and the pinion on said group of rack teeth.

Abstract translation: 一种齿条和小齿轮转向装置，其包括可操作地连接到车辆的转向轴的小齿轮，可操作地连接到车辆的车轮的转向杆机构的长棒状齿条，所述齿条具有与所述车辆的车轮啮合的一组齿条齿 小齿轮和弹簧装置，其与所述齿条的与所述小齿轮相对的一侧的背面接触，以将所述齿条弹性偏压抵靠所述小齿轮。 所述齿条齿组包括靠近所述齿条的中心的第一部分和远离所述齿条的中心的第二部分，所述第二部分在所述中心的相对侧对称地限定，并且所述两个第二部分具有一个参考节距线， 接近所述机架的轴线，因为其远离与其相邻的所述第一部分，由此所述齿条在由所述弹簧装置引起的弯曲压力下产生与所述齿条和小齿轮之间的啮合位置相关联的所述组 齿条齿。

公开(公告)号：US4215591A

公开(公告)日：1980-08-05

申请号：US876166

申请日：1978-02-08

Applicant: Arthur E. Bishop

Inventor： Arthur E. Bishop

IPC: B62D3/12 ,  F16H19/00 ,  F16H55/28 ,  F16H57/12 ,  F16H1/18

CPC classification number: F16H19/04 ,  B62D3/123 ,  F16H55/283 ,  F16H55/285 ,  Y10T74/1967 ,  Y10T74/19819

Abstract: A rack and pinion steering gear in which the rack is supported under normal or lightly loaded conditions by one or more rolling elements bearing on a face or faces of the rack, the support being spring loaded to urge the rack into slack-free engagement with the pinion. A second support means providing plain bearing faces is arranged so as to be normally out of contact with the face of the rack opposite the teeth by a predetermined and adjustable amount, the structure being such that when higher forces are applied tending to separate the rack and pinion the spring loading of the first support is resiliently deformed to allow the rack to come into contact with the second support.

Abstract translation: 一种齿条和小齿轮转向齿轮，其中齿条在正常或轻负载状态下被一个或多个滚动元件支撑在一个或多个齿条的表面上，该支撑件被弹簧加载以促使齿条与 小齿轮 提供滑动轴承面的第二支撑装置被布置成通常与齿的与齿相反的表面与预定和可调节的量相反地正常地接触，该结构使得当较大的力被施加以分离齿条时 小齿轮，第一支撑件的弹簧加载弹性变形以允许齿条与第二支撑件接触。

公开(公告)号：US20180297628A1

公开(公告)日：2018-10-18

申请号：US15947040

申请日：2018-04-06

Applicant: JTEKT CORPORATION

Inventor： Yuki BANDO ,  Akihisa UMETANI

IPC: B62D3/12 ,  F16C29/02 ,  F16H55/28 ,  F16C33/04

CPC classification number: B62D3/123 ,  B62D3/12 ,  F16C29/02 ,  F16C33/046 ,  F16H55/285

Abstract: 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.

公开(公告)号：US20170043865A1

公开(公告)日：2017-02-16

申请号：US15231921

申请日：2016-08-09

Applicant: SAFRAN LANDING SYSTEMS

Inventor： Marc QUENERCH'DU ,  Bertrand EUZET

IPC: B64C25/50 ,  B64C25/34

CPC classification number: B64C25/50 ,  B64C25/34 ,  F16H19/04 ,  F16H25/2204 ,  F16H55/285 ,  F16H2025/2075

Abstract: An aircraft undercarriage leg having an orientation control for wheels that causes a sliding rod to pivot. The orientation control has a rotating member mounted on the strut assembly having a toothed sector forming a pinion and is rotationally coupled to the sliding rod, and a rack mounted to slide on the strut assembly along a sliding axis perpendicular to the pivot axis to mesh with the pinion, the rack being moved by drive means. The drive include a rotary drive inside the rack adapted to turn about the sliding axis and to cooperate via a helicoidal coupling with the rack,. The rotary drive is immobilized axially by two opposite axial thrust bearings allowing angular tilting of the rotary drive. The thrust bearings are carried by at least one elongate support inside the rack having a proximal end fixed to an end of a cylinder in which the rack slides.

Abstract translation: 具有使滑动杆枢转的轮的定向控制的飞机起落架腿。 取向控制装置具有安装在支柱组件上的旋转构件，该旋转构件具有形成小齿轮的齿形扇形部分，并且旋转地联接到滑动杆上;以及齿条，其安装成沿垂直于枢转轴线的滑动轴线在支柱组件上滑动以与 小齿轮，齿条由驱动装置移动。 该驱动器包括适于围绕滑动轴线转动的齿条内的旋转驱动器，并通过与机架的螺旋联轴器协作。 旋转驱动器通过两个相反的轴向推力轴承轴向固定，允许旋转驱动器的角度倾斜。 推力轴承由机架内的至少一个细长支承件承载，其具有固定到气缸的端部的近端，其中齿条滑动。

公开(公告)号：US07309073B2

公开(公告)日：2007-12-18

申请号：US10525209

申请日：2003-05-30

Applicant: Noboru Nishiko

Inventor： Noboru Nishiko

IPC: B62D3/12

CPC classification number: F16H55/283 ,  B62D3/12 ,  B62D3/123 ,  F16H55/285 ,  Y10T74/1967 ,  Y10T74/19819

Abstract: A rack shaft has a rolling contact surface on the opposite side of rack teeth across an axis line X, and a pair of slanted surfaces extending in parallel with the axis line across the rolling contact surface. Furthermore, a roller rolling on the rolling contact surface of the rack shaft and an urging member having contact with the pair of slanted surfaces for applying an urging force are provided. The urging member is attached to the housing, forms an annular configuration surrounding the entire circumference of the rack shaft, and has contact portions having contact with the pair of slanted surfaces to apply the urging force.

Abstract translation: 齿条轴在齿条齿的相对侧穿过轴线X具有滚动接触表面，以及一对沿轴线平行延伸穿过滚动接触表面的倾斜表面。 此外，提供了在齿条轴的滚动接触表面上滚动的滚子和与所述一对倾斜表面接触以施加推动力的推动构件。 推动构件附接到壳体，形成围绕齿条轴的整个圆周的环形构造，并且具有与一对倾斜表面接触的接触部分以施加推动力。

公开(公告)号：US20070084665A1

公开(公告)日：2007-04-19

申请号：US11521518

申请日：2006-09-15

Applicant: Shinya Amada

Inventor： Shinya Amada

IPC: B62D5/04

CPC classification number: B62D3/123 ,  F16H55/283 ,  F16H55/285

Abstract: Since a rigid supporting structure for a gear box GB and a rolling type rack supporting device RSD are employed, an electric power steering apparatus having no response delay and having a high transmission efficiency can be realized. Further, a high steering performance required for a long period and a steering assist force that is increasing recently can be efficiently transmitted to wheels. Further, when the wheels collide with a shoulder of a road to receive a counter input, a torque sensor TS detects a torque and an assist steering force against the counter input is outputted to an output shaft OS Consequently, the torque of the counter input is restrained from being transmitted to a steering shaft SS side. Thus, a kick back and a vibration are advantageously hardly transmitted to a steering wheel SW from the wheels.

Abstract translation: 由于采用了用于齿轮箱GB和滚动式齿条支撑装置RSD的刚性支撑结构，所以可以实现不具有响应延迟并且具有高传动效率的电动助力转向装置。 此外，长时间所需的高转向性能和近来增加的转向辅助力能够有效地传递到车轮。 此外，当车轮与道路的肩部碰撞以接收计数器输入时，扭矩传感器TS检测扭矩，并且相对于输入轴OS的辅助转向力被输出到输出轴OS。因此，计数器输入的转矩为 被限制传递到转向轴SS侧。 因此，反射和振动有利地很难从轮传递到方向盘SW。

公开(公告)号：US20050193849A1

公开(公告)日：2005-09-08

申请号：US11074216

申请日：2005-03-07

Applicant: Jurgen Osterlanger ,  Alexander Zernickel ,  Manfred Kraus ,  Stefan Willared

Inventor： Jurgen Osterlanger ,  Alexander Zernickel ,  Manfred Kraus ,  Stefan Willared

IPC: B62D3/12 ,  F16H55/28 ,  F16H35/00

CPC classification number: B62D3/123 ,  F16H55/283 ,  F16H55/285 ,  Y10T74/20396

Abstract: A gear rack for a rack-and-pinion steering system for a motor vehicle. The rack having a bearing surface including a recess within a circular gear rack. A guide roller, which is borne via a needle bearing, has corresponding bearing surfaces, resting on the bearing surfaces of the rack.

Abstract translation: 用于机动车辆的齿条转向系统的齿条。 所述支架具有包括圆形齿条内的凹部的支承面。 通过滚针轴承承载的导辊具有相应的支承表面，搁置在支架表面上。

公开(公告)号：US20020084136A1

公开(公告)日：2002-07-04

申请号：US09752189

申请日：2000-12-29

Inventor： Edward Taylor Fowlkes ,  James Richard Robertson ,  Kenneth Edward Chance ,  Sunil Palakodati

IPC: B62D005/06 ,  B62D005/04

CPC classification number: B62D3/123 ,  F16H55/283 ,  F16H55/285

Abstract: A power steering system 10 is provided including a rack 14 and at least one yoke element 16 supporting the rack 14. At least one roller element 18 is positioned between the rack 14 and the yoke element 16 to reduce frictional losses as the rack 14 moves over the yoke 16.

Abstract translation: 提供了动力转向系统10，其包括齿条14和支撑齿条14的至少一个轭架元件16.至少一个滚子元件18定位在齿条14和轭元件16之间，以减小当齿条14移动时的摩擦损失 轭16。

公开(公告)号：US06390230B1

公开(公告)日：2002-05-21

申请号：US09679915

申请日：2000-10-05

Applicant: Yasuo Shimizu ,  Yasuharu Ohyama ,  Katsuji Watanabe ,  Shigeru Yamawaki ,  Atsuhiko Yoneda ,  Yasuhiro Terada

Inventor： Yasuo Shimizu ,  Yasuharu Ohyama ,  Katsuji Watanabe ,  Shigeru Yamawaki ,  Atsuhiko Yoneda ,  Yasuhiro Terada

IPC: B62D312

CPC classification number: F16H55/26 ,  B21K1/767 ,  B62D3/123 ,  B62D3/126 ,  B62D5/0421 ,  F16H55/08 ,  F16H55/285 ,  Y10T74/1967

Abstract: An electric power steering apparatus having a motor for producing assist torque according to the steering torque, and a rack and pinion mechanism for transferring torque assistance to the rack shaft. The pinion and rack of the rack and pinion mechanism are both helical gears, and transfer high torque to the rack shaft. The helical gears have a curved arc tooth profile. The teeth of a curved arc tooth profile gear set mesh with contact between convex and concave surfaces. The contact area is therefore increased and contact pressure is decreased compared with involute teeth. Surface fatigue strength, bending strength, and bending fatigue strength are thus greater compared with involute teeth. The combined steering torque and assist torque is efficiently transferred to the rack shaft, and durability is sufficient to withstand torque loads from motor inertia.

Abstract translation: 一种电动助力转向装置，具有根据转向转矩产生辅助转矩的电动机和用于将转矩辅助传递给齿条轴的齿条齿轮机构。 齿条和小齿轮机构的小齿轮和齿条都是斜齿轮，并将高扭矩传递到齿条轴。 螺旋齿轮具有弯曲的弧形齿廓。 弯曲弧齿轮齿轮组的齿与凸表面和凹面之间的接触啮合。 因此，与渐开线齿相比，接触面积增大，接触压力降低。 因此，与渐开线齿相比，表面疲劳强度，弯曲强度和弯曲疲劳强度更大。 组合的转向扭矩和辅助扭矩被有效地传递到齿条轴，并且耐久性足以承受来自电动机惯性的转矩负载。

公开(公告)号：US5983742A

公开(公告)日：1999-11-16

申请号：US18863

申请日：1998-02-05

Applicant: Christopher J. Morris ,  Kazuo Kato ,  Vernon H. Bryant

Inventor： Christopher J. Morris ,  Kazuo Kato ,  Vernon H. Bryant

IPC: B62D3/12 ,  F16H55/28 ,  F16H57/12

CPC classification number: F16H55/283 ,  B62D3/123 ,  F16H55/285 ,  Y10T74/1967

Abstract: A steering gear for a motor vehicle includes a housing, a rack bar, a pinion, a support yoke, a spring, a split roller, and a plurality of bearings. The rack bar is slidably supported within the housing for transverse displacement therein along an axis. The rack bar has teeth on a first side. The pinion has teeth drivingly engaging the teeth of the rack bar. The pinion is rotatably supported within the housing. Rotation of the pinion transversely displaces the rack bar along the axis. The support yoke is slidably disposed in the housing for movement toward a side of the rack bar substantially opposite the teeth of the rack bar. The support yoke has an opening which is open toward the rack bar, with the opening defining two opposed bearing surfaces. The spring is disposed between the housing and the support yoke, and biases the support yoke toward the rack bar. The split roller includes a first split roller section and a second split roller section. The first split roller section is substantially conical in shape and has a large diameter side located proximate to one of the bearing surfaces. The first split roller section is rotatably disposed on and axially slidable toward the one of the bearing surfaces and tangentially engages the rack bar. The second split roller section is also substantially conical in shape with a large diameter side located proximate to an other of the bearing surfaces. The second split roller section is rotatably disposed on and axially slidable toward the other of the bearing surfaces and tangentially engages the rack bar. Low friction radial bearings are disposed between the dowel pins and the roller sections. Low friction thrust bearings are axially disposed between the roller sections and the bearing surfaces of the support yoke. The spring acts against the support yoke to press the roller sections against the rack bar, causing the rollers to separate from each other and thereby defining a gap therebetween and pressing the washers against the bearing surfaces of the support yoke.