公开(公告)号：US4221137A

公开(公告)日：1980-09-09

申请号：US18034

申请日：1979-03-06

申请人： Takeshi Futaba

发明人： Takeshi Futaba

IPC分类号： B62D3/08 ,  F16H25/22 ,  F16H1/18

CPC分类号： B62D3/08 ,  F16H25/2209 ,  Y10T74/19181 ,  Y10T74/19721 ,  Y10T74/19749

摘要： In a ball nut type steering gear for a motor vehicle having two trains of balls confined within passageways formed by the helical grooves in a threaded shaft and a ball nut which surrounds the threaded shaft, two major diameter portions disposed in spaced-apart relation are formed in the threaded shaft. When the motor vehicle travels straight ahead, the balls are rollingly engaged in the helical grooves in the major diameter portions of the threaded shaft and the ball nut, and there is no play between the grooves and the balls which are engaged in the grooves. However, when the steering wheel is manipulated, the balls are rollingly engaged in the helical grooves in portions of the threaded shaft which are smaller in diameter than the major diameter portions of the threaded shaft, and there is play of a certain extent between the balls and the helical grooves.

摘要翻译： 在用于机动车辆的滚珠螺母型舵机中，具有限制在由螺纹轴中的螺旋槽形成的通道内的两列滚珠和围绕螺纹轴的滚珠螺母，形成有间隔开的两个大直径部分 在螺纹轴中。 当机动车辆直行前进时，滚珠滚动地接合在螺纹轴和滚珠螺母的大直径部分中的螺旋槽中，并且槽和与槽啮合的滚珠之间没有间隙。 然而，当操纵方向盘时，滚珠与螺纹轴的直径小于螺纹轴的直径部分的螺纹槽中的螺旋槽滚动接合，并且在滚珠之间存在一定程度的游隙 和螺旋槽。

公开(公告)号：US4624283A

公开(公告)日：1986-11-25

申请号：US565556

申请日：1983-12-27

申请人： Takeshi Futaba

发明人： Takeshi Futaba

IPC分类号： B24B19/00 ,  B24B9/00 ,  B62D5/083 ,  F16K11/12 ,  F15B9/10

CPC分类号： B62D5/083 ,  B24B9/00 ,  Y10T137/86662 ,  Y10T137/86734

摘要： A rotary control valve for an automotive power steering system and a method for making such a valve. The valve includes a tubular valve body and a spool valve member rotatable within the valve body, each of the valve body and spool valve having axially extending grooves. The spool valve member includes control edges formed at the axial grooves to effect control of the area of an opening defined by the edges of the axial grooves of the spool member and the axial grooves of the valve body. The control edges extend parallel to the axial grooves of the spool valve member along substantially the entire length thereof and are defined by at least one arcuate surface portion formed on the spool valve member at axially extending edges of the grooves. The arcuate surface portion has an axis that extends parallel to the axial grooves of the spool valve member.

摘要翻译： 用于汽车动力转向系统的旋转控制阀和制造这种阀的方法。 阀包括管状阀体和可在阀体内旋转的滑阀构件，阀体和滑阀中的每一个具有轴向延伸的凹槽。 滑阀构件包括形成在轴向槽处的控制边缘，以实现由阀芯构件的轴向槽的边缘和阀体的轴向槽限定的开口的面积的控制。 控制边缘基本上沿滑阀构件的整个长度平行于滑阀构件的轴向槽延伸，并且由形成在滑阀构件上的至少一个弓形表面部分限定在凹槽的轴向延伸的边缘处。 弧形表面部分具有平行于滑阀构件的轴向槽延伸的轴线。

公开(公告)号：US4619155A

公开(公告)日：1986-10-28

申请号：US485178

申请日：1983-04-15

申请人： Takeshi Futaba

发明人： Takeshi Futaba

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

CPC分类号： F16H55/283 ,  B62D3/123 ,  F16H55/08 ,  F16H55/285 ,  Y10T74/1967

摘要： 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.

摘要翻译： 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：US4796715A

公开(公告)日：1989-01-10

申请号：US932734

申请日：1986-10-27

申请人： Takeshi Futaba ,  Masahiko Noguchi

发明人： Takeshi Futaba ,  Masahiko Noguchi

IPC分类号： B62D6/02 ,  B62D5/00 ,  B62D5/04

CPC分类号： B62D6/02

摘要： A speed sensitive hydraulic pressure reaction device in a rack pinion type power steering device of the type employing a rotary valve. A valve body of the output shaft and the rotary valve forms a sleeve portion so as to integrally rotate around the input shaft. The sleeve portion has a plurality of holes mutually communicating through a ring ditch, and a plunger is slidably disposed in each hole. The input shaft has a plurality of slots which engage with the respective plungers at the outer periphery of the input shaft. Each slot has a bottom and a pair of slant surfaces in a cross section orthogonal to the input shaft. When the center of the plunger is aligned with a center between the pair of slant surfaces, gaps are formed between the plunger and each of the slant surfaces.

摘要翻译： PCT No.PCT / JP86 / 00105 Sec。 371日期1986年10月27日第 102（e）日期1986年10月27日PCT提交1986年2月28日PCT公布。 出版物WO86 / 05152 日期：1986年9月12日。一种采用旋转阀的齿条小齿轮型动力转向装置中的速度敏感液压反应装置。 输出轴和旋转阀的阀体形成套筒部分，以便围绕输入轴一体地旋转。 套筒部具有通过环沟相互连通的多个孔，并且柱塞可滑动地设置在每个孔中。 输入轴具有多个狭槽，其在输入轴的外周处与相应的柱塞接合。 每个槽在垂直于输入轴的横截面中具有底部和一对倾斜表面。 当柱塞的中心与一对倾斜表面之间的中心对准时，在柱塞和每个倾斜表面之间形成间隙。

公开(公告)号：US4619339A

公开(公告)日：1986-10-28

申请号：US674073

申请日：1984-11-23

申请人： Takeshi Futaba ,  Masahiko Noguchi

发明人： Takeshi Futaba ,  Masahiko Noguchi

IPC分类号： B62D5/083 ,  B62D5/22 ,  B62D6/02 ,  B62D5/08

CPC分类号： B62D6/02

摘要： Disclosed is a device for controlling the pressure of a fluid supplied to a power steering apparatus in response to the speed of a vehicle. The device is arranged such that in a fluid return passage from the power steering apparatus to a pump, there is provided a throttle valve controlled by the speed of the vehicle, so that the controlled oil pressure is guided to an oil pressure reaction chamber in the power steering apparatus.

摘要翻译： 公开了一种用于响应于车辆速度来控制供应到动力转向装置的流体的压力的装置。 该装置被布置成使得在从动力转向装置到泵的流体返回通道中，设置有由车辆速度控制的节流阀，使得受控油压被引导到油压反应室 动力转向装置。