JPH0322149U - - Google Patents

Description

【図面の簡単な説明】[Brief explanation of drawings]

第１図は本考案に係るバルブ機構を備えた緩衝
器の伸び行程におけるピストン周りの断面図、第
２図は同バルブ機構のサブピストンの伸び側面の
平面図、第３図は同バルブ機構のピストンのサブ
バルブ側面の平面図、第４図は同バルブ機構のピ
ストンの圧縮側面の平面図、第５図は同緩衝器の
圧縮行程におけるピストン周りの断面図、第６図
は従来のバルブ機構を備えた緩衝器のピストン周
りの断面図、第７図は従来の他のバルブ機構を備
えた緩衝器のピストン周りの断面図である。 尚、図面中、１はチユーブ、２はピストンロツ
ド、３はピストン、４はサブピストン、６は圧縮
側油路、７，８は伸び側油路、１０は圧縮側バル
ブ、１１は伸び側バルブ、１２はサブバルブ、１
３は圧縮側バルブ側ラウンド面、１４は伸び側バ
ルブ側ラウンド面、１５はサブバルブ側ラウンド
面１である。 Fig. 1 is a sectional view of the area around the piston during the extension stroke of a shock absorber equipped with the valve mechanism according to the present invention, Fig. 2 is a plan view of the extension side of the sub-piston of the same valve mechanism, and Fig. 3 is a view of the same valve mechanism. 4 is a plan view of the compression side of the piston of the same valve mechanism, FIG. 5 is a sectional view of the area around the piston during the compression stroke of the same shock absorber, and FIG. 6 is a view of the conventional valve mechanism. FIG. 7 is a sectional view around the piston of a shock absorber equipped with another conventional valve mechanism. In the drawings, 1 is a tube, 2 is a piston rod, 3 is a piston, 4 is a sub-piston, 6 is a compression side oil passage, 7 and 8 are extension side oil passages, 10 is a compression side valve, 11 is an expansion side valve, 12 is a sub valve, 1
3 is a round surface on the compression side valve side, 14 is a round surface on the expansion side valve side, and 15 is a round surface 1 on the sub valve side.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] ピストンに圧縮側油路及び伸び側油路を形成し
、前記ピストンの両側には前記圧縮側油路を開閉
する圧縮側バルブ及び伸び側油路を開閉する伸び
側バルブを設けた緩衝器のバルブ機構において、
前記ピストンと伸び側バルブとの間に圧縮側油路
を形成したサブピストンを設け、このサブピスト
ンの油室側に前記伸び側バルブを設け、またサブ
ピストンとピストンとの間には前記伸び側油路を
開閉するサブバルブを介設し、更に前記ピストン
の圧縮側バルブ側ラウンド面及び前記サブピスト
ンの伸び側バルブ側ラウンド面は異形ラウンド面
、前記ピストンのサブバルブ側ラウンド面は円形
ラウンド面に形成したことを特徴とする緩衝器の
バルブ機構。 A shock absorber valve having a compression side oil passage and a growth side oil passage formed in a piston, and provided on both sides of the piston with a compression side valve for opening and closing the compression side oil passage and an extension side valve for opening and closing the expansion side oil passage. In the mechanism,
A sub-piston with a compression-side oil passage formed between the piston and the expansion-side valve is provided, the expansion-side valve is provided on the oil chamber side of the sub-piston, and the expansion-side valve is provided between the sub-piston and the piston. A sub-valve for opening and closing the oil passage is interposed, and furthermore, the compression-side valve-side round surface of the piston and the extension-side valve-side round surface of the sub-piston are formed into deformed round surfaces, and the sub-valve side round surface of the piston is formed into a circular round surface. A shock absorber valve mechanism characterized by: