JPS5885570U

JPS5885570U - Rack and pinion steering system

Info

Publication number: JPS5885570U
Application number: JP18246581U
Authority: JP
Inventors: 久石田
Original assignee: 日産自動車株式会社
Priority date: 1981-12-08
Filing date: 1981-12-08
Publication date: 1983-06-10
Also published as: JPS623337Y2

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Brief explanation of the drawing]

第１図ないし第３図は従来のラック・アンド・ピニオン
式ステアリング装置を示すもので、第１図は全体図、第
２図は第１図の■−■線断面図、第３図はリテーナの底
面図、第４図ないし第７図はこの考案の一実施例を示す
図であり、第４図は第１図の■−■線断面に相当する部
分の断面図、第５図はリテーナの底面図、第６図は通常
状態のラック軸とリテーナとの関係を示す要部拡大断面
図、第７図はラック軸に過大な曲げモーメントが作用し
た状態のラック軸とリテーナとの関係を示す要部拡大断
面図である。１・・・ステアリングギヤハウジング、３・・・ラック
軸、３ａ・・・ラック、６・・・ピニオン、９・・・ス
プリング、１２・・・アジャストスクリュー、１３・・
・端蓋、２０・・・リテーナ、２０ａ・・・円弧面、２
０ｂ・・・支持面、２０Ｃ−・・突部、２０ｄ−・・孔
、２０ｅ−・・穴、２１・・・緩衝材、２１ａ・・・凹
面、２１ｂ・・・穴、２１Ｃ・・・根部。Figures 1 to 3 show a conventional rack-and-pinion steering device, with Figure 1 being an overall view, Figure 2 being a sectional view taken along the line ■-■ in Figure 1, and Figure 3 showing a retainer. , and FIGS. 4 to 7 are diagrams showing an embodiment of this invention. FIG. 4 is a cross-sectional view of a portion corresponding to the section taken along the line ■-■ in FIG. 1, and FIG. Fig. 6 is an enlarged sectional view of main parts showing the relationship between the rack shaft and the retainer in a normal state, and Fig. 7 shows the relationship between the rack shaft and the retainer when an excessive bending moment is applied to the rack shaft. FIG. DESCRIPTION OF SYMBOLS 1... Steering gear housing, 3... Rack shaft, 3a... Rack, 6... Pinion, 9... Spring, 12... Adjustment screw, 13...
・End cover, 20... Retainer, 20a... Arc surface, 2
0b... Support surface, 20C... Protrusion, 20d... Hole, 20e... Hole, 21... Cushioning material, 21a... Concave surface, 21b... Hole, 21C... Root .

Claims

[Scope of utility model registration request]

A pinion connected to the steering shaft, a steering gear housing with the pinion built in, a rack shaft passing through the steering gear housing and having a rack that meshes with the pinion within the steering gear housing, and a spring force of a spring. In a rack-and-pinion type steering device comprising a retainer that urges the rack shaft toward the pinion through a buffer material, a large portion of the retainer is provided on a surface of the retainer on the rack shaft side, penetrating the buffer material. A protrusion is provided that faces toward the rack shaft and whose tip normally does not come into contact with the rack shaft, but whose tip touches the rack shaft only when the input from the rack shaft is large due to the elastic deformation of the cushioning material. A rack-and-pinion steering device characterized by: