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Rack guide, and rack and pinion steering device with the rack guide

A rack guide, pinion technology, applied in belt/chain/gear, steering gear, steering mechanism, etc., can solve problems such as difficulty in air circulation, and achieve the effect of eliminating direct contact

Active Publication Date: 2008-05-14
JTEKT CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, since the elastic ring fitted on the rack guide completely closes the very small gap functioning as the air passage between the peripheral inner surface of the housing and the rack guide, when the rack guide moves relative to the housing , air circulation through very small gaps becomes difficult, and the space between the housing and the rack guide end face becomes a closed air cavity
Due to this closed air cavity, there is a possibility that the rapid movement of the rack guide relative to the housing is hindered

Method used

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  • Rack guide, and rack and pinion steering device with the rack guide
  • Rack guide, and rack and pinion steering device with the rack guide
  • Rack guide, and rack and pinion steering device with the rack guide

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Embodiment Construction

[0028] In FIGS. 1 to 8, the rack and pinion type steering device 1 according to this embodiment is composed of the following components: a pinion 2 rotating in the R direction; Mesh and move linearly in the A direction (direction perpendicular to the drawing plane in FIG. 1); rotatably support the housing 5 of the pinion 2; slidably support the rack guide 6 of the rack 4; and guide the rack Bearing 6 presses against elastic device 7 of pinion 2.

[0029] A pinion shaft 11 on which a pinion is integrally provided is supported on the housing 5 so as to be rotatable in the R direction by means of a pair of ball bearings 12, and is adapted to rotate in the R direction during a steering operation. .

[0030] The rack 4 linearly moves in the direction A by the rotation of the pinion 2 in the R direction through the meshing between the pinion 2 and the rack teeth 3, and has a sliding surface 15 provided on a The rack teeth 3 are on the opposite side of the surface and consist of a ...

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PUM

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Abstract

A rack-and-pinion type steering apparatus (1) includes a pinion (2) which is rotatable in an R direction, a rack bar (4) which has rack teeth (3) meshing with the pinion (2) and is linearly movable in an A direction, a housing (5) for rotatably supporting the pinion (2), a rack guide (6) for slidably supporting the rack bar (4), and a resilient means (7) for pressing the rack guide (6) toward the pinion (2).

Description

technical field [0001] The present invention relates to a rack guide for supporting a rack of an automobile steering mechanism and a rack and pinion type steering device having the rack guide. Background technique [0002] Patent Document 1: JP-A-2000-142428 [0003] A rack and pinion type steering device generally includes a housing, a pinion rotatably supported by the housing, a rack having rack teeth meshing with the pinion, teeth provided in the housing so as to slidably support the rack A rack guide, and elastic means such as a spring for pressing the rack guide against the rack. [0004] In such a rack and pinion type steering device, the rack guide for slidably supporting the linearly moving rack in steering operation is slidably fitted in the housing with a very small gap (gap) , the inner surface of the periphery of the housing is moved in a direction perpendicular to the linear movement direction of the rack, thereby avoiding the swing of the rack guide itself. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B62D3/12
CPCF16H55/283B62D3/123Y10T74/19623Y10T74/1967B62D3/12
Inventor 广濑雅彦桥本昌明佐藤信幸志村雅生久住美朗
Owner JTEKT CORP
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