JPH03118368U - - Google Patents
Info
- Publication number
- JPH03118368U JPH03118368U JP2775690U JP2775690U JPH03118368U JP H03118368 U JPH03118368 U JP H03118368U JP 2775690 U JP2775690 U JP 2775690U JP 2775690 U JP2775690 U JP 2775690U JP H03118368 U JPH03118368 U JP H03118368U
- Authority
- JP
- Japan
- Prior art keywords
- spool
- output port
- input
- opened
- outer peripheral
- 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
- 230000002093 peripheral effect Effects 0.000 claims 2
- 238000010586 diagram Methods 0.000 description 2
Landscapes
- Multiple-Way Valves (AREA)
Description
第１ないし３図は本考案の一実施例各々作動状
態で示す側断面図、第４図は従来例を示す油圧回
路図、第５図は同従来例のチエンジバルブの作動
状態を示す側断面図である。
２０……チエンジバルブ、２０ａ……出力ポー
ト、２０ｂ……左端側入力ポート、２０ｃ……右
端側入力ポート、２１……スプール、２１ａ……
円周溝、２１ｂ……連通孔。
1 to 3 are side sectional views showing an embodiment of the present invention in an operating state, FIG. 4 is a hydraulic circuit diagram showing a conventional example, and FIG. 5 is a side sectional view showing an operating state of the conventional change valve. It is a diagram. 20...Change valve, 20a...Output port, 20b...Left end side input port, 20c...Right end side input port, 21...Spool, 21a...
Circumferential groove, 21b...communication hole.
Claims (1)
央部に出力ポートを有し一方の入力ポートから入
力される油圧によつてスプールが他方の側に付勢
されてスライドすることにより出力ポートと入力
ポートの連通を切り替えるチエンジバルブにおい
て、前記スプールに、一端がスプールの外周面中
央部に他端がスプールの少なくとも一方の側の端
面に開口される連通孔が形成され、スプール外周
面の連通孔開口部の両側部分の幅が各々出力ポー
トの径よりも小さいことを特徴とするチエンジバ
ルブ。 The valve body has a pair of input ports at both ends and an output port in the center, and the spool is biased toward the other side by hydraulic pressure input from one input port and slides, thereby connecting the output port and input port. In the change valve for switching communication, a communication hole is formed in the spool, one end of which is opened at the center of the outer peripheral surface of the spool, and the other end of which is opened at the end surface of at least one side of the spool, and the communication hole opening of the outer peripheral surface of the spool is formed. A change valve characterized by the width of both sides being smaller than the diameter of the output port.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2775690U JPH03118368U (en) | 1990-03-20 | 1990-03-20 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2775690U JPH03118368U (en) | 1990-03-20 | 1990-03-20 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH03118368U true JPH03118368U (en) | 1991-12-06 |
Family
ID=31530596
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2775690U Pending JPH03118368U (en) | 1990-03-20 | 1990-03-20 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH03118368U (en) |
-
1990
- 1990-03-20 JP JP2775690U patent/JPH03118368U/ja active Pending
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