JPS61126126U

JPS61126126U -

Info

Publication number: JPS61126126U
Application number: JP1096185U
Authority: JP
Priority date: 1985-01-29
Filing date: 1985-01-29
Publication date: 1986-08-08

Description

[Brief explanation of drawings]

第１図は本考案に係るシヨツクアブソーバの減
衰力調整構造の好適な一実施例を示す縦断面図、
第２図は従来のシヨツクアブソーバの減衰力調整
構造を示す縦断面図、第３図はピストン速度に対
する伸側減衰力の特性線図である。１１……シリンダ、１２……ピストンロツド、
１３……ピストン本体、１４……セツトナツト、
１５……リーフバルブ、１６……ノンリタンバル
ブ、１７……伸側減衰バルブ、１７ａ……環状リ
ーフバルブ、１７ｂ……バルブケース、１７ｃ…
…バルブデイスク、１８……コントロールバルブ
、Ａ……上方室、Ｂ……下方室、Ｃ……側路。 FIG. 1 is a longitudinal sectional view showing a preferred embodiment of the shock absorber damping force adjustment structure according to the present invention;
FIG. 2 is a longitudinal sectional view showing a damping force adjustment structure of a conventional shock absorber, and FIG. 3 is a characteristic diagram of rebound damping force with respect to piston speed. 11...Cylinder, 12...Piston rod,
13... Piston body, 14... Set nut,
15... Leaf valve, 16... Non-return valve, 17... Growth side damping valve, 17a... Annular leaf valve, 17b... Valve case, 17c...
...Valve disk, 18...Control valve, A...Upper chamber, B...Lower chamber, C...Side channel.

Claims

[Claims for Utility Model Registration] (1) A control valve is provided in a side passage in a piston rod formed to allow communication between an upper chamber and a lower chamber in the cylinder, and the piston body is fixed to the tip of the piston rod. In the shock absorber damping force adjustment structure, the damping force adjustment structure for a shock absorber includes a rebound damping valve provided in the set nut at the lower chamber side opening of the side passage, and the rebound damping valve includes an annular leaf valve. A shock absorber characterized in that an annular leaf valve is disposed on the upper surface of a valve case fixed inside the lower end of the set nut, and a valve disk is disposed on the upper surface of the annular leaf valve so as to be able to be seated and taken off. damping force adjustment structure. (2) A damping force adjustment structure for a shock absorber according to claim 1, wherein the annular leaf valve is formed so that its inner peripheral end is bent. (3) The damping force of the shock absorber according to claim 1, wherein the valve case has a valve seat portion on its upper surface, and the lower surface of the outer peripheral end of the annular leaf valve is adjacent to the upper surface of the valve seat portion. Adjustment structure. (4) A practical valve disk in which the valve disk is energized by a spring whose upper end is locked to a cap housed in a set nut, and whose lower end surface is in contact with the upper surface of the inner peripheral end of the annular leaf valve. A damping force adjustment structure for a shock absorber as claimed in claim 1.