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Rack guide for rack and pinion steering, method for manufacturing rack and pinion steering, and rack guide for rack and pinion steering

The technology of a rack guide and a steering device is applied in the manufacturing field of a rack guide for a rack-and-pinion steering device, a rack-and-pinion steering device, and a rack guide for a rack-and-pinion steering device. It is difficult to simplify the manufacturing process of the rack guide, etc., to achieve the effect of simplifying the shape, realizing the tightness, and reducing the manufacturing cost

Active Publication Date: 2017-08-25
OILES CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, it is difficult to simplify the rack guide, mold, and rack guide base for assembling the rack guide in order to closely contact the outer surface of the rack guide with the supporting surface of the rack guide base with high precision and ensure quietness. etc. manufacturing process

Method used

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  • Rack guide for rack and pinion steering, method for manufacturing rack and pinion steering, and rack guide for rack and pinion steering
  • Rack guide for rack and pinion steering, method for manufacturing rack and pinion steering, and rack guide for rack and pinion steering
  • Rack guide for rack and pinion steering, method for manufacturing rack and pinion steering, and rack guide for rack and pinion steering

Examples

Experimental program
Comparison scheme
Effect test

no. 1 approach

[0033] figure 1 is a longitudinal sectional view schematically showing a part of the rack and pinion steering device 101 of the first embodiment, figure 2 yes figure 1 A top view of the rack guide 103 and the rack guide base 105 is shown, image 3 is along figure 2 The sectional view of the line III-III (the diameter of the rack guide base 105), Figure 4 will be figure 1 An enlarged cross-sectional view showing an enlarged representation of the rack guide 103, Figure 5 yes Figure 4 An enlarged cross-sectional view of the V portion of . in addition, figure 1 , Figure 4 , Figure 6 and image 3 Similarly, it is a sectional view of a virtual plane bisecting a linear edge portion 117 described later along a center line x passing through the rack guide 103 , the rack guide base 105 , and the fixing portion 121 concentric with each other in plan view.

[0034] Such as figure 1As shown, the rack and pinion steering device 101 mainly includes: a casing 107 as a box; ...

no. 2 approach

[0056] Figure 7 adopt and image 3 The same section shows a sectional view of the rack guide 303 and the rack guide base 305 constituting the rack and pinion steering device of the second embodiment. Unlike the rack guide 103 of the first embodiment, the rack guide 303 of the second embodiment has a so-called Y shape, and the outer surface Q2 of the rack tie rod 311 abutting on the rack guide 303 is formed of an inclined surface. Note that, except for the rack guide 303 and the rack guide base 305 , the elements constituting the rack and pinion steering device are all conventionally known structures, and thus detailed description thereof will be omitted.

[0057] Such as Figure 7 As shown, the rack rod 311 is equipped with a gear (refer to figure 1 The reference numeral 109) engages the rack teeth 311a. The rack guide 303 has abutment portions 303a1, 303a2 that slidably abut against the rack rod 311, and exit portions 303b1, 303b2 connected to one ends of the abutment po...

no. 3 approach

[0069] refer to Figure 8 The rack guide 403 of the third embodiment will be described. Figure 8 It is a cross-sectional view of the rack guide 403 of the third embodiment. In addition, the cross-sectional view and image 3 Similarly, the rack guide 103 of the first embodiment shown is a cross-sectional view of an imaginary plane along the center line x passing through the fixed portion 421 and bisecting the linear edge portion 417 . In addition, the rack guide 403 is a modified example in which the positions of the abutting portion and the retreating portion of the rack guide 103 of the first embodiment are changed, and may be assembled in place of the rack guide 103 . figure 1 On the rack and pinion steering device 101 shown. Therefore, appropriate reference Figure 1 to Figure 4 . In addition, the structure, effect, etc. which are not specifically described in the rack guide 403 are the same as those of the rack guide 103 of 1st Embodiment.

[0070] Such as Figure ...

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Abstract

The present invention provides a rack guide for a rack and pinion steering device, a rack and pinion steering device, and a rack and pinion that can maintain the adhesiveness between the rack guide and the rack guide base to ensure quietness and have a simple structure. A method of manufacturing a rack guide for a steering gear. The rack-and-pinion steering device includes: a housing; a gear rotatably supported on the housing; a rack tie rod having rack teeth meshing with the gear; a rack guide having an abutting portion and a withdrawal portion. part, the rack pull rod slidably abuts against the abutment part, the withdrawal part is connected to the abutment part and separates from the rack pull rod; the rack guide part of the rack guide part is accommodated a base body; and a biasing member for pressing the rack guide against the rack pull rod by means of the rack guide base body, and the thickness dimension of the withdrawing portion is different from that of the abutting portion.

Description

technical field [0001] The present invention relates to a rack guide for a rack and pinion steering device capable of improving adhesion to a rack guide base, a rack and pinion steering device including the rack guide, and the rack guide Manufacturing method. Background technique [0002] The rack and pinion steering device used in the past includes: a housing; a gear rotatably supported on the housing; a rack rod formed with rack teeth meshing with the gear; A rack guide; a rack guide base supporting the outer surface of the rack guide; and a spring pressing the rack guide in the direction of the rack rod via the rack guide base (Patent Document 1). [0003] The rack guide of the rack-and-pinion steering device with the above-mentioned structure is formed to have a plurality of curvatures in order to prevent the sliding resistance of the rack rod from being too large when the movable rack rod moves relative to the rack guide. A member of a curved surface composed of radii...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B62D3/12F16H19/04
CPCB62D3/123F16H55/283F16H19/04B21J5/00
Inventor 西谷洋佐石田良充
Owner OILES CORP
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