JPH022212U

JPH022212U -

Info

Publication number: JPH022212U
Application number: JP8056188U
Authority: JP
Priority date: 1988-06-20
Filing date: 1988-06-20
Publication date: 1990-01-09

Description

[Brief explanation of the drawing]

図面は本考案の一実施例を示し、第１図は本考
案の車両用シヨツクアブソーバ装置の断面図、第
２図は同平面図、第３図は第１図の―線に沿
う断面図、第４図は縮み側ポートを閉塞した状態
の第３図と同状図である。１……シヨツクアブソーバ、２……シリンダ、
２ａ……上室（第１室）、２ｂ……下室（第２室
）、４……ピストンロツド、５……ピストン、７
……伸び側ポート（第１のポート）、８……縮み
側ポート（第２のポート）、１２……閉塞機構、
１３……回動軸（中実ロツド）、１４……連通ポ
ート、１６……アクチユエータ（駆動手段）。 The drawings show an embodiment of the present invention; FIG. 1 is a sectional view of the vehicle shock absorber device of the present invention, FIG. 2 is a plan view thereof, and FIG. 3 is a sectional view taken along the line - in FIG. 1; FIG. 4 is a view similar to FIG. 3 with the contraction side port closed. 1...Shock absorber, 2...Cylinder,
2a... Upper chamber (first chamber), 2b... Lower chamber (second chamber), 4... Piston rod, 5... Piston, 7
... Retention side port (first port), 8 ... Retraction side port (second port), 12 ... Closure mechanism,
13... Rotating shaft (solid rod), 14... Communication port, 16... Actuator (driving means).

Claims

[Scope of utility model registration request]

A hollow piston rod is fluid-tightly and slidably inserted into the inside of a cylinder filled with oil, and the insertion end of the piston rod is fitted into the cylinder fluid-tightly and slidably. A piston defined between a first chamber and a second chamber is fixedly provided, a first port is provided on the piston that allows oil to flow only from the first chamber toward the second chamber, and the piston rod is provided with a first port that allows oil to flow only from the first chamber toward the second chamber. A second port is provided that allows oil to flow only from the second chamber toward the first chamber, and a solid rod is fitted into the hollow piston rod in a liquid-tight and rotatable manner, and the second port is inserted into the solid rod. A communication port is formed to communicate the port with the second chamber, and a driving means moves the solid rod into a communication position where the communication port communicates between the second port and the second chamber and a blocking position where the communication port disconnects the communication between the second port and the second chamber. A vehicle shock absorber device characterized by selectively switching and driving.