JPH0170683U

JPH0170683U -

Info

Publication number: JPH0170683U
Application number: JP1987166694U
Authority: JP
Priority date: 1987-10-30
Filing date: 1987-10-30
Publication date: 1989-05-11
Anticipated expiration: 2002-10-30
Also published as: JPH0754057Y2

Description

[Brief explanation of the drawing]

第１図は本考案の一実施例を示す断面図、第２
図は第１図の―線に沿う断面図、第３ｂ図は
反力機構２を構成する入力軸５の端部を示す正面
図、第３ａ図は第３ｂ図の左側面図、第４ａ図は
反力機構２を構成する出力軸９の端部を示す正面
図、第４ｂ図は第４ａ図の右側面図、第５図ない
し第７図はそれぞれ本考案の他の実施例を示す要
部の断面図である。１……サーボ弁、２……反力機構、３……圧力
制御機構、６，７……弁部材、４，１０４，２０
４，３０４……ハウジング、４ａ，１０４ａ，２
０４ａ，３０４ａ……孔、１４……ポンプ、１５
……パワーシリンダ、２７……油圧反力室、３０
，１３０，２３０，３３０……スリーブ、３１，
１３１，２３１，３３１……スプール弁、３３，
１３３，２３３，３３３……調整手段。 Fig. 1 is a sectional view showing one embodiment of the present invention;
The figure is a sectional view taken along the line - in Figure 1, Figure 3b is a front view showing the end of the input shaft 5 that constitutes the reaction force mechanism 2, Figure 3a is a left side view of Figure 3b, and Figure 4a is 4b is a right side view of FIG. 4a, and FIGS. 5 to 7 are main views showing other embodiments of the present invention, respectively. FIG. DESCRIPTION OF SYMBOLS 1... Servo valve, 2... Reaction force mechanism, 3... Pressure control mechanism, 6, 7... Valve member, 4,104,20
4,304... Housing, 4a, 104a, 2
04a, 304a...hole, 14...pump, 15
...Power cylinder, 27...Hydraulic reaction force chamber, 30
, 130, 230, 330...sleeve, 31,
131,231,331...Spool valve, 33,
133,233,333...adjustment means.

Claims

[Claim for Utility Model Registration] A servo valve that distributes and controls the hydraulic pressure from the pump discharge port to the power cylinder through the relative rotation of a pair of valve members, and a servo valve that generates a steering reaction force according to the hydraulic pressure supplied to the hydraulic reaction chamber. A reaction force mechanism that moves the spool valve and a spool valve that is slidably fitted into a hole formed in the housing are moved forward and backward according to the speed of the vehicle, and the hydraulic pressure to the hydraulic reaction force chamber is controlled according to the position of the forward and backward displacement. In the steering force control device for a power steering device, the sleeve is slidably fitted into the hole of the housing, and the spool valve is slidably fitted into the sleeve. The hydraulic pressure in the hydraulic reaction chamber can be controlled in accordance with the advance/retreat position of the spool valve with respect to the sleeve, and the sleeve is further displaced in the axial direction to adjust a relative reference position between the sleeve and the spool valve. A steering force control device for a power steering device, characterized in that a means is provided.