JPH01174204U

JPH01174204U -

Info

Publication number: JPH01174204U
Application number: JP7096688U
Authority: JP
Priority date: 1988-05-31
Filing date: 1988-05-31
Publication date: 1989-12-11

Description

[Brief explanation of the drawing]

第１図は本考案の実施例に適用したアクチユエ
ータの断面図、第２図は第１図の−矢視断面
図、第３図は同上第１実施例の全体構成図、第４
図〜第６図は同上第１実施例の動作説明図、第７
図は本考案の第２実施例の要部構成図、第８図は
本考案の第３実施例の要部構成図を示す。１……シヤシフレーム、３……ストラツトシリ
ンダ、６……ガススプリング、１０……スプール
バルブ、１１……バルブ本体、１２……スプール
、１４……振り子、１５……Ｌ字リンク、１７…
…バルブ駆動用ロツド、１８……ブラケツト、１
９……トレーリングアーム、２０……アクチユエ
ータ、２１……本体ケース、２２……サーボモー
タ、２４……伸縮ロツド、２６……抵抗体、３０
……接触片、３１……バツテリ、３２……ポテン
シヨメータ、３３……差動増幅器。 FIG. 1 is a sectional view of an actuator applied to an embodiment of the present invention, FIG. 2 is a sectional view taken along the - arrow in FIG. 1, FIG. 3 is an overall configuration diagram of the first embodiment, and FIG.
Figures 6 to 6 are explanatory diagrams of the operation of the first embodiment, and Figure 7 is an illustration of the operation of the first embodiment.
The figure shows the main part of a second embodiment of the present invention, and FIG. 8 shows the main part of a third embodiment of the present invention. 1... Chassis frame, 3... Strut cylinder, 6... Gas spring, 10... Spool valve, 11... Valve body, 12... Spool, 14... Pendulum, 15... L-shaped link, 17 …
...Valve drive rod, 18...Bracket, 1
9... Trailing arm, 20... Actuator, 21... Main body case, 22... Servo motor, 24... Telescopic rod, 26... Resistor, 30
... Contact piece, 31 ... Battery, 32 ... Potentiometer, 33 ... Differential amplifier.

Claims

[Scope of utility model registration request]

A fluid suspension interposed between the chassis frame and the axle, a supply and discharge valve that selectively opens and closes a working fluid supply and discharge pipe connected to the fluid suspension, and the supply and discharge valve and the axle. a vehicle height adjusting means that controls the opening and closing of the supply/exhaust valve in response to a displacement of the vehicle height, a vehicle height setting means that sets the vehicle height, and a signal from the vehicle height setting means. and an actuator that expands and contracts the rod using a servo motor driven based on the vehicle height adjustment means to substantially change the link length of the vehicle height adjusting means to a length corresponding to the set vehicle height. Vehicle height switching device.