JPS61129945U

JPS61129945U -

Info

Publication number: JPS61129945U
Application number: JP1367285U
Authority: JP
Priority date: 1985-02-04
Filing date: 1985-02-04
Publication date: 1986-08-14

Description

[Brief explanation of the drawing]

第１図はこの考案の一実施例を示す要部断面図
、第２図はシヤツタ部材の拡大斜視図、第３図は
オリフイス部材の拡大斜視図、第４図はオリフイ
ス部材の構造例を示す斜視図、第５図はシヤツタ
部材の構造例を示す斜視図、第６図は従来例を示
す一部切開した正面図、第７図は同要部拡大断面
図、第８図は第７図の―線断面図である。３：シリンダ、５：ピストンロツド、６：ピス
トン、７：ピントンロツド本体、８：ピストン支
持筒、８ａ：内部空間、９：オリフイス部材、１
０：モータ（回転駆動源）、１７：コントロール
ロツド、１８：シヤツタ部材、１８ａ：内部空間
、１９，２０，２５，２６：オリフイス、２１：
環状空間、２２：通液路、２３：上液室（液室）
、２４：下液室（液室）。 Fig. 1 is a sectional view of essential parts showing an embodiment of this invention, Fig. 2 is an enlarged perspective view of the shutter member, Fig. 3 is an enlarged perspective view of the orifice member, and Fig. 4 shows an example of the structure of the orifice member. 5 is a perspective view showing an example of the structure of a shutter member, FIG. 6 is a partially cutaway front view showing a conventional example, FIG. 7 is an enlarged sectional view of the same essential part, and FIG. FIG. 3: Cylinder, 5: Piston rod, 6: Piston, 7: Pinton rod body, 8: Piston support cylinder, 8a: Internal space, 9: Orifice member, 1
0: Motor (rotational drive source), 17: Control rod, 18: Shutter member, 18a: Internal space, 19, 20, 25, 26: Orifice, 21:
Annular space, 22: Liquid passageway, 23: Upper liquid chamber (liquid chamber)
, 24: Lower liquid chamber (liquid chamber).

Claims

[Scope of utility model registration request]

A cylinder, a piston that divides the inside of the cylinder into two liquid chambers and is slidably fitted therein, a piston rod that is fixed to the piston and protrudes to the outside of the cylinder while maintaining liquid tightness, and a piston rod that is inserted into the piston rod. a shutter member provided in the piston rod and rotatably driven by a rotational drive source; a liquid passageway provided in the piston rod and communicating the two liquid chambers; and a shutter member provided in the piston rod so as to form a part of the liquid passageway. In the variable damping force shock absorber, the damping force variable shock absorber has an orifice that aligns with the orifice of the shutter member and opens a liquid passage, wherein either one of the orifice of the shutter member and the orifice of the piston rod is formed as an orifice located on a spiral; A variable damping force type shock absorber characterized in that the other side is formed into a multi-stage orifice.