JPS61109934U - - Google Patents
Info
- Publication number
- JPS61109934U JPS61109934U JP18826185U JP18826185U JPS61109934U JP S61109934 U JPS61109934 U JP S61109934U JP 18826185 U JP18826185 U JP 18826185U JP 18826185 U JP18826185 U JP 18826185U JP S61109934 U JPS61109934 U JP S61109934U
- Authority
- JP
- Japan
- Prior art keywords
- pressure
- oil
- chamber
- throttle passages
- reservoir chamber
- 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 3
- 230000035939 shock Effects 0.000 claims description 3
- 238000013016 damping Methods 0.000 claims description 2
- 239000003921 oil Substances 0.000 claims 6
- 238000006073 displacement reaction Methods 0.000 claims 1
- 239000010720 hydraulic oil Substances 0.000 claims 1
Landscapes
- Axle Suspensions And Sidecars For Cycles (AREA)
- Fluid-Damping Devices (AREA)
Description
第１図はこの考案の第１実施例による油圧緩衝
器のバルブ装置を示す要部縦断面図、第２図は動
作開始前における絞り通路とリリーフ弁の位置関
係を示す要部詳細図、第３図イ，ロは同実施例の
動作初期における絞り通路とリリーフ弁の位置関
係を示す要部詳細図、第４図イ，ロは同実施例の
動作中期における絞り通路とリリーフ弁の位置関
係を示す要部詳細図、第５図イ，ロは同実施例の
動作後期における絞り通路とリリーフ弁の位置関
係を示す要部詳細図、第６図は同実施例における
減衰力と速度の関係を示すグラフである。
６……スプール、３１……リリーフ弁、３４…
…リターンスプリング、３２……スプリング、２
８，２９……絞り通路、２５，２７……ポート、
２３……シリンダ部、２６……オリフイス、Ｌ…
…外側油室、Ｋ……内側油室。
FIG. 1 is a vertical sectional view of the main parts showing the valve device of a hydraulic shock absorber according to the first embodiment of the invention, FIG. 2 is a detailed view of the main parts showing the positional relationship between the throttle passage and the relief valve before the start of operation, and FIG. Figures 3A and 3B are detailed views of main parts showing the positional relationship between the throttle passage and the relief valve at the early stage of operation of the same embodiment, and Figures 4A and 4B are the positional relationship between the throttle passage and the relief valve at the middle stage of the operation of the same embodiment. Figures 5A and 5B are detailed views of the main parts showing the positional relationship between the throttle passage and the relief valve in the latter stage of operation of the same embodiment, and Figure 6 is the relationship between damping force and speed in the same embodiment. This is a graph showing. 6...Spool, 31...Relief valve, 34...
...Return spring, 32...Spring, 2
8, 29... throttle passage, 25, 27... port,
23... Cylinder part, 26... Orifice, L...
...Outer oil chamber, K...Inner oil chamber.
Claims (1)
有し、かつストローク位置に応じて内部圧力が変
化する油溜室の発生圧力に応じて減衰力を変化さ
せるバルブ装置とを備えた油圧緩衝器において、
内側油室と外側油室とを連絡する油通路の途中に
、油溜室の圧力と大気圧との差圧に応動する有底
筒状のスプールをシリンダ部に摺動自由に設け、
スプールの変位に伴つて開度の変化する２つの絞
り通路を形成すると共に、この絞り通路をバイパ
スして圧側作動油を逃がすリリーフ弁を設け、か
つリリーフ弁の弁位置によつて上記一方の絞り通
路の面積を可変にしたことを特徴とする油圧緩衝
器。 It has a sealed volume compensation air chamber and an oil reservoir chamber inside, and is equipped with a valve device that changes the damping force according to the pressure generated in the oil reservoir chamber whose internal pressure changes according to the stroke position. In hydraulic shock absorbers,
In the middle of the oil passage connecting the inner oil chamber and the outer oil chamber, a bottomed cylindrical spool that responds to the differential pressure between the pressure in the oil reservoir chamber and the atmospheric pressure is installed in the cylinder part so that it can slide freely.
Two throttle passages whose opening degree changes with the displacement of the spool are formed, and a relief valve is provided that bypasses these throttle passages to release the pressure-side hydraulic oil, and one of the above-mentioned throttle passages is provided depending on the valve position of the relief valve. A hydraulic shock absorber characterized by variable passage area.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18826185U JPS6235955Y2 (en) | 1985-12-06 | 1985-12-06 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18826185U JPS6235955Y2 (en) | 1985-12-06 | 1985-12-06 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS61109934U true JPS61109934U (en) | 1986-07-11 |
| JPS6235955Y2 JPS6235955Y2 (en) | 1987-09-12 |
Family
ID=30745737
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP18826185U Expired JPS6235955Y2 (en) | 1985-12-06 | 1985-12-06 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6235955Y2 (en) |
-
1985
- 1985-12-06 JP JP18826185U patent/JPS6235955Y2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6235955Y2 (en) | 1987-09-12 |
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