JPH0198940U - - Google Patents
Info
- Publication number
- JPH0198940U JPH0198940U JP19490787U JP19490787U JPH0198940U JP H0198940 U JPH0198940 U JP H0198940U JP 19490787 U JP19490787 U JP 19490787U JP 19490787 U JP19490787 U JP 19490787U JP H0198940 U JPH0198940 U JP H0198940U
- Authority
- JP
- Japan
- Prior art keywords
- main valve
- piston
- inner cylinder
- shock absorber
- hydraulic shock
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Landscapes
- Fluid-Damping Devices (AREA)
Description
第１図は本考案の一実施例に係る油圧緩衝器の
ピストン近傍の断面図、第２図は第１図における
メインバルブの平面図、第３図は第２図の―
線に沿う断面図、第４図は第１図の油圧緩衝器の
要部断面図、第５図は第１図の油圧緩衝器におけ
る減衰力特性図、第６図は従来の油圧緩衝器の全
体断面図、第７図は第６図の油圧緩衝器における
縮み行程時の状態を示す部分断面図、第８図は第
６図の油圧緩衝器における伸び行程時の状態を示
す部分断面図、である。
１……外筒、２……内筒、３……ピストンロツ
ド、５……ベースバルブ、６……リザーバ室、３
６……ピストン、４１……ポート（伸びポート）
、４３……メインバルブ、４７……ナツト部、５
０……オリフイス、Ａ……軸心。
FIG. 1 is a sectional view of the vicinity of the piston of a hydraulic shock absorber according to an embodiment of the present invention, FIG. 2 is a plan view of the main valve in FIG. 1, and FIG. 3 is a view of the main valve in FIG.
4 is a cross-sectional view of the main part of the hydraulic shock absorber shown in FIG. 1, FIG. 5 is a damping force characteristic diagram of the hydraulic shock absorber shown in FIG. 1, and FIG. 6 is a cross-sectional view of the conventional hydraulic shock absorber. 7 is a partial sectional view showing the state of the hydraulic shock absorber in FIG. 6 during the contraction stroke; FIG. 8 is a partial sectional view showing the state of the hydraulic shock absorber in FIG. 6 during the extension stroke; It is. 1...Outer cylinder, 2...Inner cylinder, 3...Piston rod, 5...Base valve, 6...Reservoir chamber, 3
6... Piston, 41... Port (extension port)
, 43... Main valve, 47... Nut part, 5
0... Orifice, A... Axis center.
Claims (1)
筒の一端に設けられたベースバルブと、内筒と外
筒との間に形成され前記内筒内のオイルを貯溜す
るリザーバ室とを有し、伸び行程時に、前記ピス
トンとベースバルブとの間に位置する液室の圧力
により、前記ピストンの両端面を連通するポート
に密着するメインバルブを押し下げて減衰力を発
生させるようにした油圧緩衝器において、前記メ
インバルブの外周形状を非円形とし、該メインバ
ルブを前記ピストンに対して軸心まわりに回動可
能に保持させ、該メインバルブを回動させること
によりメインバルブと前記ポートとにより形成さ
れるオリフイスの流路断面積を可変可能に構成し
たことを特徴とする油圧緩衝器。 A piston slidably fitted into an inner cylinder, a base valve provided at one end of the inner cylinder, and a reservoir chamber formed between the inner cylinder and the outer cylinder and storing oil in the inner cylinder. During the extension stroke, the pressure in the liquid chamber located between the piston and the base valve pushes down the main valve that is in close contact with the port that communicates both end surfaces of the piston to generate a damping force. In the hydraulic shock absorber, the outer peripheral shape of the main valve is non-circular, the main valve is held rotatably about an axis relative to the piston, and the main valve and the port are rotated by rotating the main valve. A hydraulic shock absorber characterized in that the flow passage cross-sectional area of the orifice formed by the above is configured to be variable.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19490787U JPH0198940U (en) | 1987-12-24 | 1987-12-24 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19490787U JPH0198940U (en) | 1987-12-24 | 1987-12-24 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0198940U true JPH0198940U (en) | 1989-07-03 |
Family
ID=31485610
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP19490787U Pending JPH0198940U (en) | 1987-12-24 | 1987-12-24 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0198940U (en) |
-
1987
- 1987-12-24 JP JP19490787U patent/JPH0198940U/ja active Pending