公开(公告)号：US20160131242A1

公开(公告)日：2016-05-12

申请号：US14934933

申请日：2015-11-06

Applicant: JTEKT CORPORATION ,  HONDA MOTOR CO., LTD.

Inventor： Nobuyuki TAOKA ,  Nariaki SAKAMOTO ,  Kei NAKATE ,  Hideo KOMETANI ,  Agen NISHIKIDO ,  Masashi FUJIMOTO ,  Takumitsu OTANI ,  Hayato MIYAKAWA

IPC: F16H55/26 ,  F16H19/04 ,  B62D3/12

CPC classification number: F16H55/26 ,  B62D3/12 ,  F16H19/04 ,  F16H55/28

Abstract: A rack bush for supporting a rack shaft in a rack-and-pinion steering system so that the rack shaft slides in an axial direction thereof includes a teeth side support portion and a back side support portion. Rack teeth are formed in a first area of an outer circumferential surface of the rack shaft. The teeth side support portion contacts a second area of the outer circumferential surface to support the rack shaft from a teeth side where the rack teeth are formed. The second area lies adjacent to the first area in the axial direction. The back side support portion contacts a third area of the outer circumferential surface to support the rack shaft from a back side other than the teeth side. The third area is positioned out of the first area in a circumferential direction around an axis of the rack shaft.

Abstract translation: 用于在齿条转向系统中支撑齿条轴以使齿条轴沿其轴向滑动的齿条衬套包括齿侧支撑部分和后侧支撑部分。 齿条齿形成在齿条轴的外周面的第一区域中。 齿侧支撑部接触外周面的第二区域，以从形成有齿条齿的齿侧支撑齿条轴。 第二区域与轴向的第一区域相邻。 后侧支撑部分接触外周表面的第三区域，以从除齿侧之外的后侧支撑齿条轴。 第三区域围绕齿条轴的轴线在圆周方向上定位在第一区域之外。

公开(公告)号：US20140109702A1

公开(公告)日：2014-04-24

申请号：US14061032

申请日：2013-10-23

Applicant: JTEKT CORPORATION

Inventor： Hideo KOMETANI

IPC: B62D3/12

CPC classification number: B62D3/123 ,  B62D3/12 ,  B62D5/0421 ,  B62D5/0442 ,  B62D5/22 ,  Y10T74/18096

Abstract: A steering system includes: a housing; a rack shaft extending in an axial direction so as to pass through the housing and including a first rack and a second rack on its outer circumference so that they are separated from each other in the axial direction; a first pinion shaft including a first pinion that has helical teeth and meshes with the first rack; a second pinion shaft including a second pinion that has helical teeth and meshes with the second rack, the second pinion shaft being placed on the same side as the first pinion shaft; and a rack bush placed between the pinion shafts in the axial direction of the rack shaft, held by the housing so as to support the rack shaft slidably in the axial direction, and limiting a movement of the rack shaft in a direction substantially parallel to both of the pinion shafts.

Abstract translation: 转向系统包括：壳体; 沿轴向方向延伸的齿条轴，以便穿过所述壳体，并且在其外周上包括第一齿条和第二齿条，使得它们在轴向上彼此分离; 第一小齿轮轴，包括具有螺旋齿并与第一齿条啮合的第一小齿轮; 第二小齿轮轴，包括具有螺旋齿并与第二齿条啮合的第二小齿轮，第二小齿轮轴设置在与第一小齿轮轴相同的一侧; 以及齿条衬套，其设置在所述齿条轴的轴向方向上的所述齿条轴之间，由所述壳体保持，以便沿所述轴向可滑动地支撑所述齿条轴，并且限制所述齿条轴在基本上平行于两者的方向上的运动 的小齿轮轴。

公开(公告)号：US20160129931A1

公开(公告)日：2016-05-12

申请号：US14934928

申请日：2015-11-06

Applicant: JTEKT CORPORATION ,  HONDA MOTOR CO., LTD.

Inventor： Nobuyuki TAOKA ,  Yoshiyuki MAENAKA ,  Nariaki SAKAMOTO ,  Hideo KOMETANI ,  Masashi FUJIMOTO ,  Agen NISHIKIDO ,  Isao SHINTANI ,  Takumitsu OTANI ,  Hayato MIYAKAWA

IPC: B62D3/12

CPC classification number: B62D3/126 ,  B62D3/12 ,  F16C29/02 ,  F16C2326/24 ,  F16H55/26

Abstract: A rack-and-pinion steering system includes a pinion shaft having pinion teeth, a rack shaft on which rack teeth are formed which mesh with the pinion teeth; and a rack bush which supports the rack shaft slidably in an axial direction thereof. An outer circumferential surface of the rack shaft includes a first area which is a concave formed on an outer circumferential surface of the rack shaft and extending in the axial direction and a second area which is an area of the outer circumferential surface excluding the first area and lies adjacent to an end portion of the first area in the axial direction. The rack teeth are formed in the first area. A chamfered portion or a rounded portion is provided on a boundary between the end portion of the first area and the second area to chamfer or round a corner portion on the boundary.

Abstract translation: 齿条齿轮转向系统包括具有小齿轮齿的小齿轮轴，齿条轴，其上形成有与小齿轮齿啮合的齿条齿; 以及齿条衬套，其在轴向方向上可滑动地支撑齿条轴。 齿条轴的外周面包括形成在齿条轴的外周面上并沿轴向延伸的凹部的第一区域和除了第一区域以外的外周面的区域的第二区域， 位于第一区域的轴向方向的端部附近。 齿条齿形成在第一区域中。 在第一区域的端部和第二区域之间的边界上设置倒角部分或圆形部分，以在边界上倒角或圆角。

公开(公告)号：US20140007716A1

公开(公告)日：2014-01-09

申请号：US13932466

申请日：2013-07-01

Applicant: JTEKT CORPORATION

Inventor： Hideo KOMETANI

IPC: F16H19/04

CPC classification number: F16H19/04 ,  B62D3/123 ,  F16H55/283 ,  F16H55/285 ,  Y10T74/18096 ,  Y10T74/19623 ,  Y10T74/1967

Abstract: A rack shaft supporting device includes a support yoke, a plug that closes the other opening of an accommodation chamber, a ball screw mechanism between the support yoke and the plug, and a torsion urging member between the ball screw mechanism and the plug. The ball screw mechanism includes: a first threaded portion in which a first thread groove is formed; a second threaded portion in which a second thread groove is formed; and balls arranged in a rolling path formed of the first thread groove and the second thread groove. The torsion urging member rotates the second threaded portion relative to the plug and moves the second threaded portion toward the support yoke.

Abstract translation: 齿条轴支撑装置包括支撑轭，闭合容纳室的另一个开口的塞子，支撑轭和插塞之间的滚珠丝杠机构，以及滚珠丝杠机构和插头之间的扭转推动构件。 滚珠丝杠机构包括：第一螺纹部，其中形成有第一螺纹槽; 第二螺纹部分，其中形成有第二螺纹槽; 以及布置在由所述第一螺纹槽和所述第二螺纹槽形成的滚动路径中的滚珠。 扭力推动构件使第二螺纹部分相对于插头旋转，并将第二螺纹部分朝支撑轭移动。