JPS5962074U

JPS5962074U - power steering device

Info

Publication number: JPS5962074U
Application number: JP15700982U
Authority: JP
Inventors: 幸一原
Original assignee: 三菱自動車工業株式会社
Priority date: 1982-10-19
Filing date: 1982-10-19
Publication date: 1984-04-23

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) [Abstract] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Brief explanation of the drawing]

第１図は従来のパワーステアリング装置を示す縦断面図
、第２図は第１図のロータリーバルブ部分の拡大縦断面
図、第３図は第１図のロータリーバルブ部分の拡大横断
面図、第４図は第１図のセクタシャフト部分のＩＶ−Ｉ
Ｖ断面図、第５図は本案の一実施例を示す第４図相当位
置の断面図、第６　　図は第５図の右側面図、第７図は
コントロールシリンダーの油圧制御機構図である。１ニステアリングシヤフト、３ニド−ジョンバー、５：
ウオームシャフト、６：ラックピストン、７：セクタシ
ャフト、ａ：ロータリーバルブ、４０ニアジヤストボル
ト、４１：作動杆、４２：コントロールシリンダー、５
０ニオイルポンプ、５１：可変絞りバルブ、５６：車速
センサー、５７：コントローラー〇第２図２１ａ　２３２ｆｂ第４圀？、３７　　　　　　　　ゝ〜［し＝Ｌ旧Fig. 1 is a longitudinal sectional view showing a conventional power steering device, Fig. 2 is an enlarged longitudinal sectional view of the rotary valve portion in Fig. 1, Fig. 3 is an enlarged cross-sectional view of the rotary valve portion in Fig. 1, and Fig. 3 is an enlarged longitudinal sectional view of the rotary valve portion in Fig. 1. Figure 4 shows IV-I of the sector shaft part in Figure 1.
5 is a sectional view of a position corresponding to FIG. 4 showing an embodiment of the present invention, FIG. 6 is a right side view of FIG. 5, and FIG. 7 is a diagram of the hydraulic control mechanism of the control cylinder. 1 steering shaft, 3 steering bar, 5:
Worm shaft, 6: Rack piston, 7: Sector shaft, a: Rotary valve, 40 near mast bolt, 41: Operating rod, 42: Control cylinder, 5
0 Ni oil pump, 51: Variable throttle valve, 56: Vehicle speed sensor, 57: Controller〇Figure 2 21a 232fb 4th area? , 3 7 ゝ～[shi=L old

Claims

[Scope of utility model registration request]

It is equipped with a rack piston that decelerates the rotation of the steering shaft and increases the operating force, a sector shaft that is rotated by meshing with the rack piston, an adjustment bolt that adjusts the preload of the engagement, and a hydraulic mechanism that adds the operating force. In the power steering device, a control cylinder is provided on the adjustment bolt to drive the adjustment bolt and adjust the meshing preload, and a hydraulic control mechanism is connected to the control cylinder to supply hydraulic pressure corresponding to the vehicle speed. A power steering device characterized in that a control mechanism is configured to increase the engagement preload as the vehicle speed increases.