JPH043870U

JPH043870U -

Info

Publication number: JPH043870U
Application number: JP4455390U
Authority: JP
Priority date: 1990-04-27
Filing date: 1990-04-27
Publication date: 1992-01-14
Anticipated expiration: 2005-04-27
Also published as: JP2508565Y2

Description

[Brief explanation of the drawing]

第１図は本考案の実施例を示す縦断面図、第２
図は第１図の−線断面図、第３図は第２図の
−線断面図、第４図は可変オリフイス弁を構
成するソレノイドの励磁電流と制御ロツドの進退
量との関係を示す特性線図、第５図は制御装置に
おける車速検出値と励磁電流との関係を示す特性
線図、第６図は車速検出値をパラメータとしたロ
ータリ制御弁の制御圧と反力油圧との関係を示す
特性線図である。図中符号１はハウジング、２は操舵力制御弁、
３は入力軸、４はピニオン軸（出力軸）、７は付
勢シリンダ（操舵補助力発生機構）、８は操舵反
力発生機構、９ａ，９ｂは反力室、１０は制御ア
ーム収納部、１１ａ〜１１ｄは貫通孔、１２ａ〜
１２ｄはプランジヤ、１５は貫通孔、１６は移動
規制用ピン、２０は可変オリフイス弁である。 Fig. 1 is a vertical sectional view showing an embodiment of the present invention;
The figure is a sectional view taken along the - line in Fig. 1, Fig. 3 is a sectional view taken along the - line in Fig. 2, and Fig. 4 is a characteristic showing the relationship between the excitation current of the solenoid constituting the variable orifice valve and the amount of movement of the control rod. Figure 5 is a characteristic diagram showing the relationship between the detected vehicle speed value and excitation current in the control device, and Figure 6 is a characteristic diagram showing the relationship between the control pressure of the rotary control valve and the reaction oil pressure using the detected vehicle speed value as a parameter. FIG. In the figure, numeral 1 is a housing, 2 is a steering force control valve,
3 is an input shaft, 4 is a pinion shaft (output shaft), 7 is a biasing cylinder (steering assist force generation mechanism), 8 is a steering reaction force generation mechanism, 9a and 9b are reaction force chambers, 10 is a control arm storage section, 11a to 11d are through holes, 12a to 11d are through holes;
12d is a plunger, 15 is a through hole, 16 is a movement regulating pin, and 20 is a variable orifice valve.

Claims

[Scope of utility model registration request]

An output shaft connected to a steering mechanism, an output shaft connected so as to be relatively displaceable according to a steering torque input to the output shaft, and a steering system according to the relative displacement amount of these input shafts and output shafts. In a power steering device including a steering auxiliary force generation mechanism that generates an auxiliary force and a steering reaction force generation mechanism formed between the input shaft and the output shaft, the steering reaction force generation mechanism is arranged between the input shaft and the output shaft. A pair of reaction force chambers formed on opposing surfaces of either one of the output shafts to which pressure fluid is supplied, and a control arm protruding from the other of the input shaft and output shaft formed between the reaction force chambers are slid. A storage section that can be moved freely,
a through hole bored between each of the reaction force chambers and the storage section;
A plunger is slidably disposed in the through hole, and the movement of the plunger is controlled by a through hole bored perpendicular to the axial direction of the plunger, and a movement regulating pin inserted into the through hole. A steering reaction force generating device for a power steering device, characterized in that the movement is restricted by a movement restricting mechanism.