JPS644959U - - Google Patents
Info
- Publication number
- JPS644959U JPS644959U JP9881787U JP9881787U JPS644959U JP S644959 U JPS644959 U JP S644959U JP 9881787 U JP9881787 U JP 9881787U JP 9881787 U JP9881787 U JP 9881787U JP S644959 U JPS644959 U JP S644959U
- Authority
- JP
- Japan
- Prior art keywords
- spool
- inflow
- communicating
- valve
- pressure oil
- 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
- 238000010586 diagram Methods 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
Landscapes
- Fluid-Pressure Circuits (AREA)
- Multiple-Way Valves (AREA)
Description
図はこの考案の実施例を示し、第１図はスプー
ルが中立時のバルブの断面図、第２図イは要部の
拡大断面図、ロはスプールのノツジ部分を示す平
面図、第３図は要部の断面図、第４図はスプール
が「上」位置でのバルブの断面図、第５図はスプ
ールが「下」位置でのバルブの断面図、第６図は
従来装置の作動原理図である。
符号の説明、１……コントロールバルブ、２…
…メインスプール、３……圧力油供給通路、５…
…油圧シリンダー、７……圧力油流出入通路、９
……圧力油流出入通路、１１……スリーブ、１２
……ノツジ。
The figures show an embodiment of this invention. Fig. 1 is a sectional view of the valve when the spool is in neutral, Fig. 2 A is an enlarged sectional view of the main part, B is a plan view showing the notch part of the spool, and Fig. 3 is a cross-sectional view of the main parts, Figure 4 is a cross-sectional view of the valve with the spool in the "up" position, Figure 5 is a cross-sectional view of the valve with the spool in the "down" position, and Figure 6 is the operating principle of the conventional device. It is a diagram. Explanation of symbols, 1... Control valve, 2...
...Main spool, 3...Pressure oil supply passage, 5...
...Hydraulic cylinder, 7...Pressure oil inflow and outflow passage, 9
... Pressure oil inflow and outflow passage, 11 ... Sleeve, 12
...Notsuji.
Claims (1)
と、オイルタンク１０へ連通している排出通路１
６と、油圧シリンダー５の油室６，８と連通して
いる圧力油流出入通路７，９とを有し、バルブ１
本体に嵌合されたスプール２を操作することによ
つて、上記油室６，８へ供給される圧力油の流出
入の方向が変更されるよう構成してなる油圧バル
ブにおいて、該スプール２には、上記いずれか１
つの流出入通路７，９と排出通路１６とが常時連
通し得る切欠部１２を設け、この連通の開閉をス
プール２の軸芯廻りの回動により行なわせるよう
に構成したことを特徴とする油圧バルブにおける
切換装置。 Pressure oil supply passage 3 communicating with hydraulic pump 4
and a discharge passage 1 communicating with the oil tank 10.
6 and pressure oil inflow and outflow passages 7 and 9 communicating with the oil chambers 6 and 8 of the hydraulic cylinder 5, and the valve 1
In a hydraulic valve configured such that the direction of inflow and outflow of pressure oil supplied to the oil chambers 6 and 8 is changed by operating the spool 2 fitted to the main body, the spool 2 is is any one of the above
A hydraulic system characterized in that a notch 12 is provided in which the two inflow and outflow passages 7 and 9 and a discharge passage 16 can communicate with each other at all times, and the communication is opened and closed by rotation of the spool 2 about its axis. Switching device in valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9881787U JPH0527747Y2 (en) | 1987-06-26 | 1987-06-26 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9881787U JPH0527747Y2 (en) | 1987-06-26 | 1987-06-26 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS644959U true JPS644959U (en) | 1989-01-12 |
| JPH0527747Y2 JPH0527747Y2 (en) | 1993-07-15 |
Family
ID=31325416
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9881787U Expired - Lifetime JPH0527747Y2 (en) | 1987-06-26 | 1987-06-26 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0527747Y2 (en) |
-
1987
- 1987-06-26 JP JP9881787U patent/JPH0527747Y2/ja not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0527747Y2 (en) | 1993-07-15 |