JPS647933U - - Google Patents

Description

[Brief explanation of the drawing]

FIG. 1 is a sectional view of a hydraulic shock absorber according to the present invention;
FIGS. 2 and 3 are sectional views each illustrating the operating state of the shock absorber, and FIG. 4 is a diagram showing the compression side damping force characteristics of the shock absorber. In addition, in the drawing, 1 is a cylinder, 4 is a separator,
6 is a partition member, 7 is a groove, 8 is a bladder, 9 is a deformation prevention case, 11 is a center hole, 15 is a piston rod, 16 is a piston, 17 is a position dependent mechanism, 18
is an outer slider, 19 is an orifice, 20 is a return spring, 21 is a blow valve, 22
is the valve spring, 24 is the extension side oil hole, 25 is the check valve, S1 is the oil chamber, S2 is the gas chamber, S
3 is an upper oil chamber, and S4 is a lower oil chamber.

Claims (1)

[Scope of utility model registration request] In a single cylinder hydraulic shock absorber that defines oil pressure and gas chambers in a cylinder, a separator is fixed in the cylinder to divide the oil chamber into an upper oil chamber and a lower oil chamber, and this separator has a central A cylindrical outer slider is slidably inserted into the outer slider and biased toward the upper oil chamber by a return spring, and an orifice is provided at the upper end of the outer slider to communicate between the inside and outside. A blow valve is slidably inserted into the separator and biased toward the upper end of the outer slider by a valve spring, and an oil hole on the extension side is formed in the separator, and a check valve is inserted in this oil hole on the extension side. A position-dependent hydraulic shock absorber.