公开(公告)号：US20170050666A1

公开(公告)日：2017-02-23

申请号：US15232963

申请日：2016-08-10

Applicant: JTEKT CORPORATION

Inventor： Akitake KAWAKUBO

IPC: B62D3/12 ,  F16H55/28

CPC classification number: B62D3/126 ,  B62D3/12 ,  B62D3/123 ,  F16H55/28 ,  F16H55/283 ,  F16H2055/281

Abstract: In a steering system, a guide member faces the rack shaft on the opposite side of the rack shaft from the pinion shaft, and an opposed member faces the guide member at a first distance. The rack shaft is supported by the first rack bush so as to be slidable in the axial direction. The rack shaft is supported so as to be slidable in the axial direction X at a position closer to the guide member than the first rack bush is by the second rack bush disposed away from the inner surface. An elastic member that can be elastically deformed is disposed between the inner surface and the second rack bush. The second rack bush has an opposed portion disposed on the opposite side of the rack shaft from the pinion shaft and facing the inner surface at a second distance that is larger than the first distance.

Abstract translation: 在转向系统中，引导构件面对齿条轴的与齿轮轴相反侧的齿条轴，相对的构件在第一距离处面对引导构件。 齿条轴由第一齿条衬套支撑，以便能够沿轴向滑动。 齿条轴被支撑为能够通过远离内表面布置的第二齿条衬套在比第一齿条衬套更靠近引导构件的位置处沿轴向方向X滑动。 可弹性变形的弹性构件设置在内表面和第二齿条衬套之间。 第二齿条衬套具有相对部分，其设置在齿条轴的与小齿轮轴相反的一侧上，并且以相对于第一距离大的第二距离面向内表面。

公开(公告)号：US20150020618A1

公开(公告)日：2015-01-22

申请号：US14331684

申请日：2014-07-15

Applicant: JTEKT CORPORATION

Inventor： Akitake KAWAKUBO

IPC: B62D3/12 ,  F16H19/04

CPC classification number: B62D3/126 ,  B62D3/12 ,  F16C29/002 ,  F16C29/02 ,  F16C35/02 ,  F16C2326/24 ,  F16C2361/61 ,  F16H19/04 ,  F16H55/28 ,  F16H2055/281 ,  Y10T74/18096

Abstract: A rack bush, which constitutes a rack and pinion type steering system and supports a rack shaft in which rack teeth are formed at one circumferential portion, includes a bush main body and a rigidity reducing portion. The bush main body has an annular shape into which the rack shaft is inserted. The bush main body is divided, in a circumferential direction, into two portions including a rack teeth-side portion located on the same side as the rack teeth in the circumferential direction and a back face-side portion other than the rack teeth-side portion. The rigidity reducing portion is provided in the rack teeth-side portion, and makes a rigidity of the rack teeth-side portion lower than a rigidity of the back face-side portion.

Abstract translation: 构成齿条小齿轮型转向系统的齿条衬套，并且在一个圆周部分上支撑齿条轴，其中齿条齿形成在轴套上，包括衬套主体和刚性减小部分。 衬套主体具有齿条轴插入其中的环形形状。 衬套主体沿圆周方向分为两个部分，其包括位于与圆周方向上的齿条同一侧的齿条齿侧部分和除了齿条齿侧部分之外的后表面侧部分 。 刚性减小部设置在齿条齿侧部分，并使齿条齿侧部分的刚度低于背面侧部分的刚性。

公开(公告)号：US20140338486A1

公开(公告)日：2014-11-20

申请号：US14273956

申请日：2014-05-09

Applicant: JTEKT CORPORATION

Inventor： Makoto TAENAKA ,  Akitake KAWAKUBO

IPC: F16H19/04

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

Abstract: A rack guide unit includes a closure member secured to an external opening end of an accommodation portion of a housing, and a rack guide. Coned disc springs that urge the rack guide toward a rack shaft are interposed between the closure member and the rack guide. A protrusion of the closure member is passed through the coned disc springs and inserted in a recessed portion of the rack guide. An O-ring held in an accommodation groove formed in the outer periphery of the protrusion, at a position closer to the distal end of the protrusion than the coned disc springs are, functions as a retaining protrusion that restrains the coned disc springs from coming off the protrusion. For example, the coned disc springs and the closure member constitute a subassembly formed in advance.

Abstract translation: 齿条引导单元包括固定到壳体的容纳部分的外部开口端的封闭构件和齿条引导件。 将齿条引导件朝向齿条轴推动的圆盘弹簧介于封闭构件和齿条引导件之间。 封闭构件的突起穿过盘形弹簧并插入齿条引导件的凹入部分。 保持在突出部的外周中的容纳槽中的O形圈在比锥形盘形弹簧更靠近突出部的远端的位置处起到用作限制锥形盘簧脱落的保持突起的作用 突起。 例如，碟形弹簧和封闭构件构成预先形成的子组件。