JPS6348044U - - Google Patents
Info
- Publication number
- JPS6348044U JPS6348044U JP14154186U JP14154186U JPS6348044U JP S6348044 U JPS6348044 U JP S6348044U JP 14154186 U JP14154186 U JP 14154186U JP 14154186 U JP14154186 U JP 14154186U JP S6348044 U JPS6348044 U JP S6348044U
- Authority
- JP
- Japan
- Prior art keywords
- bypass
- piston
- shock absorber
- damping force
- valve
- 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 8
- 230000035939 shock Effects 0.000 claims description 8
- 238000013016 damping Methods 0.000 claims description 7
- 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図は他の実施例に係る油
圧緩衝器の一部縦断正面図、第7図は従来の油圧
緩衝器の一部縦断正面図、第8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、36…ポート、
29…第2のリーフバルブ、31…第1のリーフ
バルブ、36a…第1のバイパス、36b…第2
のバイパス、39…ロータリーバルブ、50…デ
イスク、53…可変オリフイス。
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 5 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 hydraulic shock absorber according to another embodiment, and FIG. 7 is a graph of a conventional hydraulic shock absorber. FIG. 8, a partially longitudinal front view, is a graph showing conventional damping force characteristics. 17...Cylinder, 18...Piston, 19...Piston rod, 21, 22...Oil chamber, 36...Port,
29...second leaf valve, 31...first leaf valve, 36a...first bypass, 36b...second
bypass, 39...rotary valve, 50...disc, 53...variable orifice.
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
上部口端には第1の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の
デイスクを設け、このデイスクとピストンロツド
には上下油室を連通する第1のバイパスを設け、
この第1のバイパスの上部油室側口端に第2のリ
ーフバルブを開閉自在に設け、更に第1のバイパ
スは上部油室に開口する第2のバイパスと接続し
、第1、第2のバイパス内には各バイパスの開口
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) 第1、第2のリーフバルブは伸圧共用のバ
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) 開口面積を調整するバルブが第1のバイパ
スに開閉される可変ポートと第2のバイパスに開
閉される可変オリフイス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。 (4) 第2のバイパスがピストンロツドに設けら
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。 (5) 第2のバイパスがピストンとデイスク間に
介装したプレートに設けら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. A first leaf valve is provided at the upper end of the port so as to be openable and closable, and the piston rod is provided with a disk above the piston, and this disk and the piston rod are provided with a first leaf valve that communicates with the upper and lower oil chambers. Provide a bypass for
A second leaf valve is provided at the upper oil chamber side mouth end of the first bypass so as to be openable and closable, and the first bypass is further connected to a second bypass that opens to the upper oil chamber, and the first and second leaf valves are connected to each other. A damping force adjustment device for a hydraulic shock absorber, characterized in that a valve for adjusting the opening area of each bypass is provided in the bypass. (2) The damping force adjusting device for a hydraulic shock absorber according to claim 1, wherein the first and second leaf valves are valves for common use in expansion. (3) The hydraulic pressure according to claim 1 of the utility model registration claim, wherein the valve for adjusting the opening area is a rotary valve provided with a variable port that opens and closes on the first bypass and a variable orifice that opens and closes on the second bypass. Shock absorber damping force adjustment device. (4) The damping force adjusting device for a hydraulic shock absorber according to claim 1, wherein the second bypass is provided on the piston rod. (5) The damping force adjusting device for a hydraulic shock absorber according to claim 1, wherein the second bypass is provided in a plate interposed between the piston and the disk.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1986141541U JPH0424197Y2 (en) | 1986-09-16 | 1986-09-16 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1986141541U JPH0424197Y2 (en) | 1986-09-16 | 1986-09-16 |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS6348044U true JPS6348044U (en) | 1988-04-01 |
JPH0424197Y2 JPH0424197Y2 (en) | 1992-06-08 |
Family
ID=31049421
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP1986141541U Expired JPH0424197Y2 (en) | 1986-09-16 | 1986-09-16 |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH0424197Y2 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2009287764A (en) * | 2008-06-02 | 2009-12-10 | Kayaba Ind Co Ltd | Rotary valve |
JP2009287762A (en) * | 2008-06-02 | 2009-12-10 | Kayaba Ind Co Ltd | Rotary valve |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS50153384U (en) * | 1974-06-08 | 1975-12-19 | ||
JPS60102536U (en) * | 1983-12-19 | 1985-07-12 | トキコ株式会社 | Damping force adjustable shock absorber |
JPS61156743U (en) * | 1985-03-22 | 1986-09-29 |
-
1986
- 1986-09-16 JP JP1986141541U patent/JPH0424197Y2/ja not_active Expired
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS50153384U (en) * | 1974-06-08 | 1975-12-19 | ||
JPS60102536U (en) * | 1983-12-19 | 1985-07-12 | トキコ株式会社 | Damping force adjustable shock absorber |
JPS61156743U (en) * | 1985-03-22 | 1986-09-29 |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2009287764A (en) * | 2008-06-02 | 2009-12-10 | Kayaba Ind Co Ltd | Rotary valve |
JP2009287762A (en) * | 2008-06-02 | 2009-12-10 | Kayaba Ind Co Ltd | Rotary valve |
Also Published As
Publication number | Publication date |
---|---|
JPH0424197Y2 (en) | 1992-06-08 |
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