JPS6336738U - - Google Patents
Info
- Publication number
- JPS6336738U JPS6336738U JP13050786U JP13050786U JPS6336738U JP S6336738 U JPS6336738 U JP S6336738U JP 13050786 U JP13050786 U JP 13050786U JP 13050786 U JP13050786 U JP 13050786U JP S6336738 U JPS6336738 U JP S6336738U
- Authority
- JP
- Japan
- Prior art keywords
- valve
- port
- piston
- shock absorber
- 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
- 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 1
- 238000007906 compression Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 1
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
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図は従来お減衰力特性を示
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、３６…
…ポート、２９……第１のリーフバルブ、３１…
…第２のリーフバルブ、３６′……分岐通路、３
９……ロータリーバルブ。
Fig. 1 is a partially longitudinal 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 rate 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, 36...
...Port, 29...First leaf valve, 31...
...second leaf valve, 36'...branch passage, 3
9...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
の油室を連通するポートを形成し、このポートの
上下口端には伸圧共用の第１、第２のリーフバル
ブが開閉自在に設けられ、ピストンとピストンロ
ツドには前記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) 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 port is formed, and first and second leaf valves for expansion and compression are provided at the upper and lower mouth ends of the port so as to be openable and closable, and a branch passage is provided in the piston and the piston rod to communicate the port with the lower oil chamber. A damping force adjusting device for a hydraulic shock absorber, characterized in that a valve for adjusting an opening area of the branch passage is provided in the branch passage. (2) The damping force adjusting 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 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 |
|---|---|---|---|
| JP13050786U JPS6336738U (en) | 1986-08-27 | 1986-08-27 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13050786U JPS6336738U (en) | 1986-08-27 | 1986-08-27 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6336738U true JPS6336738U (en) | 1988-03-09 |
Family
ID=31028073
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP13050786U Pending JPS6336738U (en) | 1986-08-27 | 1986-08-27 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6336738U (en) |
-
1986
- 1986-08-27 JP JP13050786U patent/JPS6336738U/ja active Pending