JPH0227042U - - Google Patents
Info
- Publication number
- JPH0227042U JPH0227042U JP10530488U JP10530488U JPH0227042U JP H0227042 U JPH0227042 U JP H0227042U JP 10530488 U JP10530488 U JP 10530488U JP 10530488 U JP10530488 U JP 10530488U JP H0227042 U JPH0227042 U JP H0227042U
- Authority
- JP
- Japan
- Prior art keywords
- center hole
- valve body
- liquid chamber
- piston rod
- damping force
- 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
- 238000013016 damping Methods 0.000 claims description 11
- 239000007788 liquid Substances 0.000 claims description 5
- 239000006096 absorbing agent Substances 0.000 claims description 4
- 230000035939 shock Effects 0.000 claims description 4
- 239000012530 fluid Substances 0.000 claims 4
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
Landscapes
- Vehicle Body Suspensions (AREA)
- Fluid-Damping Devices (AREA)
Description
第１図は本考案に係る減衰力可変型液圧緩衝器
の一実施例を示す要部断面図、第２図は従来の減
衰力可変型液圧緩衝器を示す断面図である。
１……シリンダ、２……ピストンロツド、３…
…ピストン、４，５……上下部液室、８……圧側
減哀バルブ、９……伸側減衰バルブ（減衰力発生
機構）、１０……中心孔、１１ａ，１１ｂ……側
孔、１２……減衰力可変機構、２１……チエツク
バルブ、２２……リテーナ、２３……バルブボデ
イ、２４……伸側通路、２５……圧側通路、３０
……リーフ弁体。
FIG. 1 is a sectional view of a main part of an embodiment of a variable damping force type hydraulic shock absorber according to the present invention, and FIG. 2 is a cross sectional view of a conventional variable damping force type hydraulic shock absorber. 1...Cylinder, 2...Piston rod, 3...
... Piston, 4, 5 ... Upper and lower liquid chambers, 8 ... Compression side damping valve, 9 ... Rebound side damping valve (damping force generation mechanism), 10 ... Center hole, 11a, 11b ... Side hole, 12 ... damping force variable mechanism, 21 ... check valve, 22 ... retainer, 23 ... valve body, 24 ... expansion side passage, 25 ... compression side passage, 30
...Leaf valve body.
Claims (1)
ピストンロツドと、該ピストンロツドの一端に固
定されて上記シリンダ内を上部液室と下部液室と
に隔成しつつ摺動可能なピストンとを備え、上記
ピストンには、それぞれ上部液室と下部液室とを
置換流通する作動液に流動抵抗を付与して減衰力
を発生させる減衰力発生機構が配置されている一
方、上記ピストンロツドには、内部軸方向に沿つ
て貫通形成された中心孔と、該中心孔と上部液室
とを連通する側孔とが形成されていると共に、上
記中心孔内に上記側孔の開口断面積を変化させて
減衰力を可変制御する減衰力可変型機構とを備え
、更に、上記ピストンロツドの一端に、リテーナ
と該リテーナに保持されたバルブボデイを有する
チエツクバルブを設けた液圧緩衝器であつて、上
記チエツクバルブのバルブボデイに、上記中心孔
と下部液室間に作動液を置換流動させる伸側通路
と圧側通路とを貫通形成し、バルブボデイの一端
に上記伸側通路を流通した作動液に流通抵抗を付
与するリーフ弁体を設けたことを特徴とする減衰
力可変型液圧緩衝器。 A piston rod that sealingly penetrates into the cylinder from one end side, and a piston that is fixed to one end of the piston rod and is slidable while separating the inside of the cylinder into an upper liquid chamber and a lower liquid chamber, The piston is equipped with a damping force generating mechanism that generates a damping force by imparting flow resistance to the working fluid flowing through the upper and lower fluid chambers, while the piston rod is equipped with an internal shaft. A center hole is formed through the center hole along the direction, and a side hole is formed that communicates the center hole with the upper liquid chamber, and the opening cross-sectional area of the side hole is changed in the center hole to reduce damping. The hydraulic shock absorber is equipped with a variable damping force mechanism for variably controlling force, and further includes a check valve having a retainer and a valve body held by the retainer at one end of the piston rod, A growth side passage and a pressure side passage are formed through the valve body to displace and flow the working fluid between the center hole and the lower liquid chamber, and a leaf is provided at one end of the valve body to provide flow resistance to the working fluid flowing through the expansion side passage. A variable damping force type hydraulic shock absorber characterized by being equipped with a valve body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10530488U JPH0227042U (en) | 1988-08-09 | 1988-08-09 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10530488U JPH0227042U (en) | 1988-08-09 | 1988-08-09 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0227042U true JPH0227042U (en) | 1990-02-22 |
Family
ID=31337798
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10530488U Pending JPH0227042U (en) | 1988-08-09 | 1988-08-09 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0227042U (en) |
-
1988
- 1988-08-09 JP JP10530488U patent/JPH0227042U/ja active Pending
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