JPS60128003U - shock absorber - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Brief explanation of the drawing]

FIG. 1 is a partial sectional view showing the main parts of a shock absorber according to an embodiment of the present invention. FIG. 2 is a partial cross-sectional view of the needle taken along line 1-n in FIG. FIGS. 3A to 3C are operation diagrams showing the operation of the above-mentioned shock absorbing device step by step.
FIG. 10 Niji cylinder body, 12 Niji cylinder bore, 14: Cushion bore, 16: Piston, 18: Cushion post,
22: Fluid port, (24: Axial hole, 26.28.3
0: radial hole) (multiple bypass passages), 32, 34
, 36: cushion valves (these cushion valves cooperate with each other with the radial holes 26° 28, 30 to form three variable orifices).

Claims (1)

[Claims for Utility Model Registration] A cylinder body comprising a cylinder bore and a cushion bore continuous to the cylinder bore and having a smaller diameter, and a fluid port communicating the cushion bore with external piping; The piston is movably fitted, and the screws protrude in the axial direction from the end faces of the screws 1 to 1, and are slidably fitted into the cushion bore near the paper end of the piston's movement stroke. a cushion post that cuts off communication with the cylinder bore; and a cushion post that allows the cylinder bore and the cushion bore to communicate in parallel with each other even after the cushion post is fitted into the cushion bore, and a center line of the inner peripheral surface of the cushion bore. a plurality of bypass passages each opening at a predetermined pressure distance in a direction parallel to the cushion bore, the openings of which are sequentially closed by the outer peripheral surface of the cushion bore; a plurality of variable orifices each providing resistance to the flow of fluid toward the fluid port via the bypass passage.