JPS6124558U

JPS6124558U - hydraulic shock absorber

Info

Publication number: JPS6124558U
Application number: JP11009184U
Authority: JP
Inventors: 俊明武藤
Original assignee: トキコ株式会社
Priority date: 1984-07-20
Filing date: 1984-07-20
Publication date: 1986-02-13

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Brief explanation of the drawing]

第１図ないし第３図は本考案の第１の実施例を示し、第
１図は全体構成を示す継断面図、第２図は第ｊ図中の要
部拡大図、第３図はバツフル板の斜視図、第４図は本考
案の第２の実施例を示す要部拡大図、第５図は本考案の
第３の実施例を示す要部拡大図、第６図は第４図に示す
第２の実施例の変形に係る要部拡大図である。１・・・外筒、２・・・内筒、３・・・底蓋、４，２１
・・田ツドガイド、５・・・オイルシール、６・・・ピ
ストンロッド、７・・・ピストン、８，９・・・減衰力
発生部、１０，１５，２４・・・油穴、１１・・
・油通路、１２：円環状凹溝、１３，２２．３１・・・
チェック弁、１４，２３・・・バツフル板、３２・・・
チェック弁押え、Ａ・・・ＩＪザーバ室、Ｂ，Ｃ，
Ｄ，Ｅ，Ｅ’・・・油室。Figures 1 to 3 show a first embodiment of the present invention, Figure 1 is a joint cross-sectional view showing the overall configuration, Figure 2 is an enlarged view of the main part in Figure J, and Figure 3 is a full-length diagram. A perspective view of the plate, FIG. 4 is an enlarged view of the main part showing the second embodiment of the present invention, FIG. 5 is an enlarged view of the main part showing the third embodiment of the invention, and FIG. FIG. 2 is an enlarged view of main parts according to a modification of the second embodiment shown in FIG. 1... Outer cylinder, 2... Inner cylinder, 3... Bottom cover, 4, 21
...Tad guide, 5...Oil seal, 6...Piston rod, 7...Piston, 8, 9...Damping force generating part, 10, 15, 24...Oil hole, 11...
・Oil passage, 12: Annular groove, 13, 22, 31...
Check valve, 14, 23... Bound full plate, 32...
Check valve holder, A...IJ server chamber, B, C,
D, E, E'... Oil chamber.

Claims

[Scope of utility model registration request]

(1) An outer cylinder and an inner cylinder whose one end is closed by a bottom cover, a rod guide and an oil seal provided on the other end sides of the outer cylinder and the inner cylinder, and a rod that passes through the rod guide and oil seal and whose tip is A piston rod protrudes into the inner cylinder, a piston slidably inserted into the inner cylinder and provided at the tip side of the piston rod, and retained in an oil chamber between the piston rod guide and the oil seal. An oil passage is drilled in the rod guide to allow the oil to flow out into the reservoir chamber formed between the outer cylinder and the inner cylinder, and an oil passage is provided only from the oil chamber to the reservoir chamber through the oil passage. In a hydraulic shock absorber comprising a check valve made of an annular elastic member disposed on the side of the reservoir chamber so as to allow fluid to flow, there is a space between the Rondo guide and the check valve to prevent oil flowing out from the oil passage. A hydraulic shock absorber characterized in that a buffer plate is provided to disperse liquid in the circumferential direction of the check valve.

(2) The check valve includes a cylindrical portion fitted onto the outer circumferential surface of the small diameter portion of the round guide, and a conical lip portion extending radially from the cylindrical portion and seated on and off the large diameter lower surface of the mouth guide. A hydraulic shock absorber according to claim (1) of the utility model registration.

(3) The rod guide is provided with an annular groove located on the outflow side of the oil passage, and the baffle plate is installed in the annular groove. The hydraulic shock absorber described in (2).

(4) The hydraulic shock absorber according to claim {1}, wherein the check valve and the buffer plate are formed in an annular shape, and the inner diameter side thereof is sandwiched between the inner cylinder and the Rondo guide.