JPS6359236U - - Google Patents
Info
- Publication number
- JPS6359236U JPS6359236U JP15346686U JP15346686U JPS6359236U JP S6359236 U JPS6359236 U JP S6359236U JP 15346686 U JP15346686 U JP 15346686U JP 15346686 U JP15346686 U JP 15346686U JP S6359236 U JPS6359236 U JP S6359236U
- Authority
- JP
- Japan
- Prior art keywords
- port
- valve
- piston
- leaf valve
- side leaf
- 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.)
- Granted
Links
- 239000006096 absorbing agent Substances 0.000 claims description 5
- 238000013016 damping Methods 0.000 claims description 5
- 230000035939 shock Effects 0.000 claims description 5
- 230000006835 compression Effects 0.000 claims description 2
- 238000007906 compression Methods 0.000 claims description 2
- 238000010586 diagram Methods 0.000 description 2
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図は伸長時のバルブ部の回路
図、第４図は圧縮時のバルブ部の回路図、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、３３…
…第３のポート、３６ａ……伸ポート、３６ｂ…
…圧ポート、２９……第２の伸側リーフバルブ、
３１……第１の伸側リーフバルブ、３６ｃ……バ
イパス、３９……ロータリーバルブ、５０……デ
イスク、５３……第１の圧側リーフバルブ、５２
……第２の圧側リーフバルブ。
Fig. 1 is a partial longitudinal sectional 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, and Fig. 3 is a circuit diagram of the valve section when extended. , Fig. 4 is a circuit diagram of the valve section during compression, Fig. 5 is a graph showing damping force characteristics, Fig. 6 is a partially longitudinal front view of a conventional hydraulic shock absorber, and Fig. 7 is a conventional damping force characteristic. This is a graph showing. 17...Cylinder, 18...Piston, 19...
...Piston rod, 21, 22...Oil chamber, 33...
...Third port, 36a... Extension port, 36b...
...Pressure port, 29...Second expansion side leaf valve,
31...First expansion side leaf valve, 36c...Bypass, 39...Rotary valve, 50...Disc, 53...First pressure side leaf valve, 52
...Second pressure side leaf 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
の油室を連通する二つの伸ポートと圧ポートを形
成し、伸ポートの下部口端に第１の伸側リーフバ
ルブを開閉自在に設け、圧ポートの上部口端には
第１の圧側リーフバルブが開閉自在に設けられ、
更にピストンロツドにはピストン上方にデイスク
を設け、このデイスクには上部油室に開口する第
３のポートを形成し、第３のポートの上下各口端
に第２の伸側リーフバルブと第２の圧側リーフバ
ルブを開閉自在に設け、デイスクとピストンロツ
ドには第３のポートを下部油室を連通するバイパ
スを設け、バイパス内には当該バイパスの開口面
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) 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。 (3) 第１の伸側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。[Claims for Utility Model Registration] (1) A piston rod is movably inserted into the cylinder via a piston, the piston defines two upper and lower oil chambers in the cylinder, and the two oil chambers communicate with the piston. Two expansion ports and a pressure port are formed, a first expansion side leaf valve is provided at the lower mouth end of the expansion port so as to be openable and closable, and a first compression side leaf valve is provided at the upper mouth end of the pressure port so as to be openable and closable. is,
Further, the piston rod is provided with a disk above the piston, a third port that opens into the upper oil chamber is formed in this disk, and a second expansion side leaf valve and a second expansion side leaf valve are provided at each of the upper and lower mouth ends of the third port. The pressure side leaf valve is provided to be able to open and close freely, a bypass is provided in the disk and the piston rod to communicate the third port with the lower oil chamber, and a valve is provided in the bypass to adjust the opening area of the bypass. Damping force adjustment device for hydraulic shock absorbers. (2) 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. (3) The damping force adjusting device for a hydraulic shock absorber according to claim 1, wherein the first extension leaf valve is always biased in the closing direction by a spring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1986153466U JPH0518509Y2 (en) | 1986-10-06 | 1986-10-06 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1986153466U JPH0518509Y2 (en) | 1986-10-06 | 1986-10-06 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6359236U true JPS6359236U (en) | 1988-04-20 |
| JPH0518509Y2 JPH0518509Y2 (en) | 1993-05-17 |
Family
ID=31072375
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1986153466U Expired - Lifetime JPH0518509Y2 (en) | 1986-10-06 | 1986-10-06 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0518509Y2 (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5881244A (en) * | 1981-11-10 | 1983-05-16 | Kayaba Ind Co Ltd | Damping force adjustable oil-pressure damper |
| JPS5884241A (en) * | 1981-11-16 | 1983-05-20 | Kayaba Ind Co Ltd | Hydraulic buffer of damping force adjustment type |
| JPS5911932U (en) * | 1982-07-14 | 1984-01-25 | トキコ株式会社 | Variable damping force hydraulic shock absorber |
| JPS61172232U (en) * | 1985-04-15 | 1986-10-25 |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5911932B2 (en) * | 1980-12-25 | 1984-03-19 | 富士通株式会社 | Numerical data input processing method using image display device |
-
1986
- 1986-10-06 JP JP1986153466U patent/JPH0518509Y2/ja not_active Expired - Lifetime
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5881244A (en) * | 1981-11-10 | 1983-05-16 | Kayaba Ind Co Ltd | Damping force adjustable oil-pressure damper |
| JPS5884241A (en) * | 1981-11-16 | 1983-05-20 | Kayaba Ind Co Ltd | Hydraulic buffer of damping force adjustment type |
| JPS5911932U (en) * | 1982-07-14 | 1984-01-25 | トキコ株式会社 | Variable damping force hydraulic shock absorber |
| JPS61172232U (en) * | 1985-04-15 | 1986-10-25 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0518509Y2 (en) | 1993-05-17 |
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