JPS61164836U

JPS61164836U -

Info

Publication number: JPS61164836U
Application number: JP4680385U
Authority: JP
Priority date: 1985-04-01
Filing date: 1985-04-01
Publication date: 1986-10-13

Description

[Brief explanation of the drawing]

第１図は本考案に係る液圧緩衝器の要部を示す
断面図、第２図は第１図の２―２線に沿つて切断
した断面図、第３図は第１図の３―３線に沿つて
切断した断面図、第４図は液圧緩衝器の別の例の
要部を示す断面図、第５図はピストン速度と減衰
力との関係を示す特性図である。１０：液圧緩衝器、１２：シリンダ、１４：ピ
ストン、１６：ピストンロツド、２４：第１の通
路、２６：第２の通路、２８：第３の通路、３２
，７４：調整バルブ、３４，７６：第４の通路、
３６，７８：第５の通路、４２：逆止め弁。 Fig. 1 is a sectional view showing the main parts of the hydraulic shock absorber according to the present invention, Fig. 2 is a sectional view taken along line 2-2 in Fig. 1, and Fig. 3 is a sectional view taken along line 2-2 in Fig. 1. FIG. 4 is a sectional view showing the essential parts of another example of a hydraulic shock absorber, and FIG. 5 is a characteristic diagram showing the relationship between piston speed and damping force. 10: hydraulic shock absorber, 12: cylinder, 14: piston, 16: piston rod, 24: first passage, 26: second passage, 28: third passage, 32
, 74: adjustment valve, 34, 76: fourth passage,
36, 78: Fifth passage, 42: Check valve.

Claims

[Scope of utility model registration request]

a cylinder; a piston slidably disposed within the cylinder and partitioning the interior of the cylinder into first and second liquid chambers; and a piston rod coupled to the piston, which communicates with the first liquid chamber in an axial direction. a piston rod having a first passage extending to the inner peripheral surface, a second passage communicating with the first liquid chamber and extending toward the inner circumferential surface, and a third passage communicating with the second liquid chamber and extending toward the inner circumferential surface; a control rod disposed within the piston rod; and a regulating valve operated by the control rod, which is provided at a position that can face the second passage, and communicates the first passage with the second passage. an adjustment having a fifth passage having a diameter different from that of the fourth passage, which is provided in a portion that can face the third passage, and which communicates the first passage with the third passage; a valve, which prevents the flow of liquid from the second liquid chamber to the first liquid chamber when the piston rod is extended, and which allows the flow of liquid from the first liquid chamber to the second liquid chamber when the piston rod is retracted; and a check valve associated with the first passage.