JPS5897332U - Hydraulic shock absorber damping force adjustment mechanism - Google Patents

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

Description

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

図面は本考案の一実施例を示し、第１図は本考案に係る
調整機構を装備して成る油圧緩衝器の縦断側面図、第２
因はチェックバルブの平面図、第３図は第１図３−３線
断面図、第４図及び第５図は減衰力特性図である。 尚図面中１はシリンダ、２は中空ロッド、３はピストン
、？、　　９．　１０は油路、８．　１１．　１５はチ
ェックバルブ、１３はバルブケース、１４はバルブシー
ト、１６はバルブスプリング、１７はブツシュロッド、
１８はアジャストスプリング、　　　　、２１は取付部
材、２４はカム軸、２４ａはカム、２５はアジャスタ、
Ｓ□は上部作動室、Ｓ２は下部作動室である。The drawings show one embodiment of the present invention, and FIG. 1 is a longitudinal cross-sectional side view of a hydraulic shock absorber equipped with an adjustment mechanism according to the present invention,
The cause is a plan view of the check valve, FIG. 3 is a sectional view taken along the line 3-3 in FIG. 1, and FIGS. 4 and 5 are damping force characteristic diagrams. In the drawing, 1 is a cylinder, 2 is a hollow rod, and 3 is a piston. , 9. 10 is an oil passage; 8. 11. 15 is a check valve, 13 is a valve case, 14 is a valve seat, 16 is a valve spring, 17 is a bushing rod,
18 is an adjustment spring, 21 is a mounting member, 24 is a camshaft, 24a is a cam, 25 is an adjuster,
S□ is an upper working chamber, and S2 is a lower working chamber.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 中空ロッドに固定され、緩衝器の押倒、引側作動時に作
動油を流通せしめる押倒油路、引例油路を夫々設けて成
るピストンをシリンダ内に摺動自在に嵌装するとともに
、前記引例油路の少なくとも１つを前記中空ロッド内部
に連通せしめた油圧緩衝器において、前記中空ロッド端
部にバルブケースを固設し、該バルブケース内にリング
状バルブシートを固定し、該バルブシートに緩衝器の引
側作動時に開き、且つバルブスプリングでシート側に付
勢されるチェックバルブを配設するとともに、前記中空
ロッド内にシリンダ外から駆動され□るブツシュロッド
を摺動自在に嵌装し、該ブツシュロッドと前記チェック
バルブ間にアジャストスプリングを張架して成ることを
特徴とする油圧緩衝器の減衰力調整機構。A piston fixed to a hollow rod and provided with a push-down oil passage and a cited oil passage through which hydraulic oil flows during the push-down and pull-side operations of the shock absorber is slidably fitted into the cylinder, and the piston is slidably fitted into the cylinder, and the piston is slidably fitted into the cylinder. In the hydraulic shock absorber, a valve case is fixed to the end of the hollow rod, a ring-shaped valve seat is fixed within the valve case, and the shock absorber is connected to the valve seat. A check valve that opens when the cylinder is operated on the pull side and is biased toward the seat side by a valve spring is disposed, and a bushing rod driven from outside the cylinder is slidably fitted into the hollow rod, and the bushing rod A damping force adjustment mechanism for a hydraulic shock absorber, characterized in that an adjustment spring is stretched between the check valve and the check valve.