JPS6289578U - - Google Patents
Info
- Publication number
- JPS6289578U JPS6289578U JP18023185U JP18023185U JPS6289578U JP S6289578 U JPS6289578 U JP S6289578U JP 18023185 U JP18023185 U JP 18023185U JP 18023185 U JP18023185 U JP 18023185U JP S6289578 U JPS6289578 U JP S6289578U
- Authority
- JP
- Japan
- Prior art keywords
- spool
- port
- pusher
- spring
- casing
- 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
- 238000010586 diagram Methods 0.000 description 3
Landscapes
- Safety Valves (AREA)
- Servomotors (AREA)
Description
第１図ないし第３図は本考案の実施例に係り、
第１図は設定用ばねを示す断面図、第２図は第１
図に示す設定用ばねの特性線図、第３図は押圧操
作量、出力圧および流量等の関係を示す特性線図
、第４図ないし第６図は従来技術に係り、第４図
は減圧弁型パイロツト弁の縦断面図、第５図は第
４図中に示す設定用ばねの断面図、第６図は第５
図に示す設定用ばねの特性線図である。
１……ケーシング、２……油圧ポンプ、３，３
′……ポンプポート、４……タンク、５……タン
クポート、６，６′……ばね室、７，７′……出
力ポート、１１……方向切換弁、１２，１２′…
…スプール、１６，１６′……プツシヤ、１８，
１８′……復帰用ばね、２２……操作杆、３１，
３１′……設定用ばね。
Figures 1 to 3 relate to embodiments of the present invention,
Figure 1 is a sectional view showing the setting spring, Figure 2 is the sectional view of the setting spring.
Figure 3 is a characteristic diagram of the setting spring shown in the figure, Figure 3 is a characteristic diagram showing the relationship between the amount of pressing operation, output pressure, flow rate, etc., Figures 4 to 6 are related to the conventional technology, and Figure 4 is the reduced pressure. A vertical sectional view of the valve type pilot valve, FIG. 5 is a sectional view of the setting spring shown in FIG. 4, and FIG. 6 is a sectional view of the setting spring shown in FIG.
FIG. 3 is a characteristic diagram of the setting spring shown in the figure. 1...Casing, 2...Hydraulic pump, 3,3
'... Pump port, 4... Tank, 5... Tank port, 6, 6'... Spring chamber, 7, 7'... Output port, 11... Directional switching valve, 12, 12'...
...Spool, 16, 16'... Pushya, 18,
18'...Returning spring, 22...Operation rod, 31,
31'... Setting spring.
Claims (1)
を有するケーシングと、該ケーシング内に摺動変
位可能に設けられ、前記出力ポートをポンプポー
トとタンクポートとのいずれかに連通させるスプ
ールと、該スプールを摺動変位させるために押圧
操作されるプツシヤと、該プツシヤとスプールと
の間に介装され、該プツシヤの押圧操作量に応じ
て前記スプールによる圧力を設定する設定用ばね
とからなる減圧弁型パイロツト弁において、前記
設定用ばねを、非線形のばね特性を有するばねに
よつて構成したことを特徴とする減圧弁型パイロ
ツト弁。 a casing having a pump port, a tank port, and an output port; a spool provided in the casing so as to be slidably displaceable and communicating the output port with either the pump port or the tank port; A pressure reducing valve-type pilot valve comprising a pusher that is pressed in order to press the spool, and a setting spring that is interposed between the pusher and the spool and sets the pressure exerted by the spool according to the amount of the pusher's pressing operation. . A pressure reducing valve type pilot valve, wherein the setting spring is a spring having non-linear spring characteristics.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18023185U JPS6289578U (en) | 1985-11-22 | 1985-11-22 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18023185U JPS6289578U (en) | 1985-11-22 | 1985-11-22 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6289578U true JPS6289578U (en) | 1987-06-08 |
Family
ID=31124000
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP18023185U Pending JPS6289578U (en) | 1985-11-22 | 1985-11-22 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6289578U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0436104U (en) * | 1990-07-24 | 1992-03-26 |
-
1985
- 1985-11-22 JP JP18023185U patent/JPS6289578U/ja active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0436104U (en) * | 1990-07-24 | 1992-03-26 |
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