JPS6357834U - - Google Patents
Info
- Publication number
- JPS6357834U JPS6357834U JP15066386U JP15066386U JPS6357834U JP S6357834 U JPS6357834 U JP S6357834U JP 15066386 U JP15066386 U JP 15066386U JP 15066386 U JP15066386 U JP 15066386U JP S6357834 U JPS6357834 U JP S6357834U
- Authority
- JP
- Japan
- Prior art keywords
- port
- valve
- shock absorber
- damping force
- 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
- 239000006096 absorbing agent Substances 0.000 claims description 6
- 238000013016 damping Methods 0.000 claims description 6
- 230000035939 shock Effects 0.000 claims description 6
- 230000006835 compression Effects 0.000 claims 2
- 238000007906 compression Methods 0.000 claims 2
- 238000010586 diagram Methods 0.000 description 1
Description
第１図は本考案の一実施例に係る油圧緩衝器の
一部縦断正面図、第２図は第１図のピストン部の
拡大断面図、第３図はバルブ部の回路図、第４図
は圧力―流量特性を示すグラフ、第５図は減衰力
特性を示すグラフ、第６図は従来の油圧緩衝器の
一部縦断正面図、第７図は従来の減衰力特性を示
すグラフである。
１７……シリンダ、１８……ピストン、１９…
…ピストンロツド、２１，２２……油室、３６ａ
……第１のポート、３６ｂ……第２のポート、２
９……第１のリーフバルブ、３１……第２のリー
フバルブ、３６ｃ……分岐通路、３９……ロータ
リーバルブ。
Fig. 1 is a partially vertical front view of a hydraulic shock absorber according to an embodiment of the present invention, Fig. 2 is an enlarged sectional view of the piston section of Fig. 1, Fig. 3 is a circuit diagram of the valve section, and Fig. 4 is a graph showing the pressure-flow characteristics, Fig. 5 is a graph showing the damping force characteristics, Fig. 6 is a partially longitudinal front view of a conventional hydraulic shock absorber, and Fig. 7 is a graph showing the conventional damping force characteristics. . 17...Cylinder, 18...Piston, 19...
...Piston rod, 21, 22...Oil chamber, 36a
...First port, 36b...Second port, 2
9...first leaf valve, 31...second leaf valve, 36c...branch passage, 39...rotary valve.
Claims (1)
ツドが移動自在に挿入され、ピストンはシリンダ
内に上下二つの油室を区画し、ピストンには二つ
の油室を連通する第１のポートと第２のポートを
形成し、第１のポートの上部口端には伸圧共用の
第１のリーフバルブが開閉自在に設けられ、第２
のポートの下部口端には伸圧共用の第２のリーフ
バルブが開閉自在に設けられ、ピストンロツドに
は前記第１のポートを下部油室に連通させる分岐
通路を設け、この分岐通路内には当該分岐通路の
開口面積を調整するバルブを設けたことを特徴と
する油圧緩衝器の減衰力調整装置。 (2) 第２のポートの下部口端を開閉する第２の
リーフバルブはスプリングで常時閉じ方向に付勢
されている実用新案登録請求の範囲第１項記載の
油圧緩衝器の減衰力調整装置。 (3) 第２のリーフバルブとスプリングとの間に
通孔を設けた中空なバルブが介在している実用新
案登録請求の範囲第２項記載の油圧緩衝器の減衰
力調整装置。 (4) 開口面積を調整するバルブが可変ポートを
設けたロータリバルブである実用新案登録請求の
範囲第１項記載の油圧緩衝器の減衰力調整装置。[Claims for Utility Model Registration] (1) A piston rod is movably inserted into the cylinder via a piston, the piston divides the cylinder into two upper and lower oil chambers, and the piston communicates with the two oil chambers. A first port and a second port are formed, and a first leaf valve for expansion and compression is provided at the upper mouth end of the first port so as to be openable and closable.
A second leaf valve for expansion and compression is provided at the lower mouth end of the port so as to be openable and closable, and the piston rod is provided with a branch passage that communicates the first port with the lower oil chamber. A damping force adjustment device for a hydraulic shock absorber, comprising a valve for adjusting the opening area of the branch passage. (2) The damping force adjustment device for a hydraulic shock absorber according to claim 1, wherein the second leaf valve that opens and closes the lower mouth end of the second port is always biased in the closing direction by a spring. . (3) The damping force adjusting device for a hydraulic shock absorber according to claim 2, wherein a hollow valve with a through hole is interposed between the second leaf valve and the spring. (4) The damping force adjusting device for a hydraulic shock absorber according to claim 1, wherein the valve for adjusting the opening area is a rotary valve provided with a variable port.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15066386U JPS6357834U (en) | 1986-10-02 | 1986-10-02 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15066386U JPS6357834U (en) | 1986-10-02 | 1986-10-02 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6357834U true JPS6357834U (en) | 1988-04-18 |
Family
ID=31067004
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP15066386U Pending JPS6357834U (en) | 1986-10-02 | 1986-10-02 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6357834U (en) |
-
1986
- 1986-10-02 JP JP15066386U patent/JPS6357834U/ja active Pending