JPH01154910U

JPH01154910U -

Info

Publication number: JPH01154910U
Application number: JP4847688U
Authority: JP
Priority date: 1988-04-11
Filing date: 1988-04-11
Publication date: 1989-10-25

Description

【図面の簡単な説明】[Brief explanation of the drawing]

第１図は本考案の車両の減衰力調整機構が配置
されたエアサスペンシヨンを示す説明図、第２図
は第１図のシヨツクアブソーバを示す縦断面図、
第３図は第２図の―線に沿う横断面図、第４
図は第１図のアクチユエータを示す縦断面図、第
５図は第４図の側面図、第６図は第４図の平面図
、第７図はオリフイス開度を示す説明図、第８図
は流体スプリング内圧及びアクチユエータの回動
用ロツドのストロークとオリフイス開度との関係
を示す線図、第９図はばね定数と減衰力と減衰係
数比との関係を示す線図、第１０図は本考案の車
両の減衰力調整機構が配置された油空圧サスペン
シヨンを示す説明図、第１１図は第１０図の回路
図、第１２図は第１０図の減衰バルブ付近を示す
縦断面図、第１３図は従来のばね定数と減衰力と
減衰係数比との関係を示す線図である。３０，８５…車両の減衰力調整機構、３１…エ
アサスペンシヨン、４５…エアスプリング、４９
…シヨツクアブソーバ、６９，１２１…アクチユ
エータ、７１…回動用シリンダ、７３…回動用ピ
ストン、８３…オリフイス開度、８７…油空圧サ
スペンシヨン、９７…減衰バルブ、１１３…第１
アキユムレータ。 FIG. 1 is an explanatory diagram showing an air suspension in which the damping force adjustment mechanism of the vehicle of the present invention is arranged, FIG. 2 is a longitudinal sectional view showing the shock absorber of FIG. 1,
Figure 3 is a cross-sectional view taken along the - line in Figure 2;
The figure is a vertical sectional view showing the actuator in Fig. 1, Fig. 5 is a side view of Fig. 4, Fig. 6 is a plan view of Fig. 4, Fig. 7 is an explanatory diagram showing the orifice opening degree, and Fig. 8 is a diagram showing the relationship between the internal pressure of the fluid spring, the stroke of the rotation rod of the actuator, and the opening of the orifice. Figure 9 is a diagram showing the relationship between the spring constant, damping force, and damping coefficient ratio. 11 is a circuit diagram of FIG. 10, and FIG. 12 is a longitudinal cross-sectional view showing the vicinity of the damping valve of FIG. 10. FIG. 13 is a diagram showing the relationship between a conventional spring constant, damping force, and damping coefficient ratio. 30, 85... Vehicle damping force adjustment mechanism, 31... Air suspension, 45... Air spring, 49
...Shock absorber, 69, 121... Actuator, 71... Rotating cylinder, 73... Rotating piston, 83... Orifice opening, 87... Hydraulic pneumatic suspension, 97... Damping valve, 113... First
Accumulator.

Claims

【実用新案登録請求の範囲】[Scope of utility model registration request]

流体圧サスペンシヨンの減衰装置にオイルが出
入するオリフイスを設けると共に、このオリフイ
スの開度をアクチユエータにより変化させ、減衰
力を調整してなる車両の減衰力調整機構において
、前記アクチユエータにシリンダを設け、このシ
リンダと前記流体圧サスペンシヨンの流体スプリ
ングとを連通し、前記シリンダ内へ導入される前
記流体スプリングの流体により往復運動させて前
記減衰装置のオリフイス開度を調整するピストン
を前記シリンダに設けたことを特徴とする車両の
減衰力調整機構。 A damping force adjustment mechanism for a vehicle in which a damping device for a hydraulic suspension is provided with an orifice through which oil enters and exits, and the opening degree of the orifice is changed by an actuator to adjust the damping force, wherein the actuator is provided with a cylinder; The cylinder is provided with a piston that communicates between the cylinder and the fluid spring of the fluid pressure suspension and that is caused to reciprocate by the fluid of the fluid spring introduced into the cylinder to adjust the opening degree of the orifice of the damping device. A vehicle damping force adjustment mechanism characterized by: