JPS6399046U - - Google Patents
Info
- Publication number
- JPS6399046U JPS6399046U JP19521286U JP19521286U JPS6399046U JP S6399046 U JPS6399046 U JP S6399046U JP 19521286 U JP19521286 U JP 19521286U JP 19521286 U JP19521286 U JP 19521286U JP S6399046 U JPS6399046 U JP S6399046U
- Authority
- JP
- Japan
- Prior art keywords
- bypass
- valve
- shock absorber
- hydraulic shock
- 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 11
- 230000035939 shock Effects 0.000 claims description 11
- 238000013016 damping Methods 0.000 claims description 8
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図の油圧緩衝器の
減衰力特性を示すグラフ、第3図は本考案の他の
実施例に係る油圧緩衝器の一部縦断正面図、第4
図は第3図の油圧緩衝器の減衰力特性を示すグラ
フ、第5図及び第6図は従来の油圧緩衝器の縦断
面図とその減衰力特性を示すグラフである。
11…シリンダ、12…ピストン、13…ピス
トンロツド、14,15…油室、16…ポート、
18…メインバルブ、20a,20,20b,2
0c…バイパス、25…サブバルブ。
Fig. 1 is a partially vertical front view of a hydraulic shock absorber according to an embodiment of the present invention, Fig. 2 is a graph showing damping force characteristics of the hydraulic shock absorber of Fig. 1, and Fig. 3 is a graph showing damping force characteristics of the hydraulic shock absorber according to another embodiment of the present invention. Partial longitudinal sectional front view of the hydraulic shock absorber according to the example, No. 4
This figure is a graph showing the damping force characteristics of the hydraulic shock absorber shown in FIG. 3, and FIGS. 5 and 6 are longitudinal sectional views of the conventional hydraulic shock absorber and graphs showing the damping force characteristics thereof. 11... Cylinder, 12... Piston, 13... Piston rod, 14, 15... Oil chamber, 16... Port,
18... Main valve, 20a, 20, 20b, 2
0c...Bypass, 25...Sub 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設け、このポートの下
部口端にメインバルブを開閉自在に設けた油圧緩
衝器に於て、前記二つの油室を連通するバイパス
を設け、このバイパスの下流側端部にサブバルブ
を開閉自在に設けた油圧緩衝器の減衰力発生装置
。 (2) バイパスがピストンロツドに形成され、バ
イパスの下流側端部に伸側サブバルブが開閉自在
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発生装置。 (3) バイパスの途中にバイパスの通路面積を調
節するロータリバルブが回転自在に挿入され、ロ
ータリバルブは外部から回転操作される実用新案
登録請求の範囲第1項記載の油圧緩衝器の減衰力
発生装置。 (4) ピストンロツドの下部外周にバルブシート
が保持され、このバルブシートにバイパスと連通
する通路を形成し、この通路の口端に伸側サブバ
ルブが開閉自在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発生装
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. In a hydraulic shock absorber, a port is provided, and a main valve is provided at the lower mouth end of the port so that the main valve can be opened and closed, and a bypass is provided that communicates the two oil chambers, and a sub-valve is installed at the downstream end of this bypass so that the main valve can be opened and closed. A damping force generating device for a hydraulic shock absorber installed in (2) The damping force generating device for a hydraulic shock absorber according to claim 1, wherein the bypass is formed in the piston rod, and the extension sub-valve is provided at the downstream end of the bypass so as to be openable and closable. (3) A rotary valve for adjusting the passage area of the bypass is rotatably inserted in the middle of the bypass, and the rotary valve is rotatably operated from the outside to generate a damping force of the hydraulic shock absorber according to claim 1 of the utility model registration claim. Device. (4) A utility model registration claim in which a valve seat is held on the outer periphery of the lower part of the piston rod, a passage communicating with a bypass is formed in this valve seat, and an extension side sub-valve is provided at the mouth end of this passage so as to be openable and closable. 2. A damping force generating device for a hydraulic shock absorber according to item 1.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP19521286U JPS6399046U (en) | 1986-12-18 | 1986-12-18 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP19521286U JPS6399046U (en) | 1986-12-18 | 1986-12-18 |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS6399046U true JPS6399046U (en) | 1988-06-27 |
Family
ID=31152897
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP19521286U Pending JPS6399046U (en) | 1986-12-18 | 1986-12-18 |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6399046U (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2006322488A (en) * | 2005-05-18 | 2006-11-30 | Kayaba Ind Co Ltd | Damping force generating valve structure for hydraulic draft gear |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5884241A (en) * | 1981-11-16 | 1983-05-20 | Kayaba Ind Co Ltd | Hydraulic buffer of damping force adjustment type |
JPS5911933B2 (en) * | 1980-01-31 | 1984-03-19 | 三洋電機株式会社 | Method for detecting light pen pointing position in video display device |
-
1986
- 1986-12-18 JP JP19521286U patent/JPS6399046U/ja active Pending
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5911933B2 (en) * | 1980-01-31 | 1984-03-19 | 三洋電機株式会社 | Method for detecting light pen pointing position in video display device |
JPS5884241A (en) * | 1981-11-16 | 1983-05-20 | Kayaba Ind Co Ltd | Hydraulic buffer of damping force adjustment type |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2006322488A (en) * | 2005-05-18 | 2006-11-30 | Kayaba Ind Co Ltd | Damping force generating valve structure for hydraulic draft gear |
JP4644526B2 (en) * | 2005-05-18 | 2011-03-02 | カヤバ工業株式会社 | Damping force generation valve structure of hydraulic shock absorber |