JPS6169504U - - Google Patents
Info
- Publication number
- JPS6169504U JPS6169504U JP15403484U JP15403484U JPS6169504U JP S6169504 U JPS6169504 U JP S6169504U JP 15403484 U JP15403484 U JP 15403484U JP 15403484 U JP15403484 U JP 15403484U JP S6169504 U JPS6169504 U JP S6169504U
- Authority
- JP
- Japan
- Prior art keywords
- passage
- poppet
- communicates
- logic valve
- valve
- 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 3
Description
第１図は本考案の実施例を示すロジツク弁の断
面図と切替弁を組合せた回路説明図、第２図は別
の実施例を示す第１図相当図、第３図は本考案の
使用例を示す油圧回路図、第４図は油圧シヨベル
の一例を示す側面図である。
１…ロジツク弁、２…弁本体、３…第１通路、
４…第２通路、６…ポペツト、８…ばね、９…バ
イパス通路、１０…絞り穴、１０′…可変絞り部
、１１，１１′…弁体、１２，１３…パイロツト
ポート、１６…切替弁、１６ａ…第１制御位置、
１６ｂ…第２制御位置、１７…タンク。
Fig. 1 is an explanatory circuit diagram combining a cross-sectional view of a logic valve and a switching valve showing an embodiment of the present invention, Fig. 2 is a diagram equivalent to Fig. 1 showing another embodiment, and Fig. 3 is a use of the present invention. A hydraulic circuit diagram showing an example, and FIG. 4 is a side view showing an example of a hydraulic excavator. 1...Logic valve, 2...Valve body, 3...First passage,
4... Second passage, 6... Poppet, 8... Spring, 9... Bypass passage, 10... Throttle hole, 10'... Variable throttle part, 11, 11'... Valve body, 12, 13... Pilot port, 16... Switching valve , 16a...first control position,
16b...Second control position, 17...Tank.
Claims (1)
ロジツク弁に、第１通路と第２通路とを常時連通
させるバイパス通路を設けるとともに、このバイ
パス通路に絞りを設け、かつ、該ロジツク弁のポ
ペツト背面に、ポペツト背面をタンクに連通させ
る位置と、ポペツト背面にパイロツト圧を導く位
置とに切替自在の切替弁を接続してなることを特
徴とする流量制御回路。 A logic valve that allows oil to flow from the first passage to the second passage is provided with a bypass passage that constantly communicates the first passage and the second passage, and a restriction is provided in this bypass passage, and the logic valve A flow control circuit characterized in that a switching valve is connected to the back of the poppet, and can be freely switched between a position where the poppet back communicates with the tank and a position where pilot pressure is guided to the poppet back.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1984154034U JPH058323Y2 (en) | 1984-10-11 | 1984-10-11 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1984154034U JPH058323Y2 (en) | 1984-10-11 | 1984-10-11 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6169504U true JPS6169504U (en) | 1986-05-13 |
| JPH058323Y2 JPH058323Y2 (en) | 1993-03-02 |
Family
ID=30712028
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1984154034U Expired - Lifetime JPH058323Y2 (en) | 1984-10-11 | 1984-10-11 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH058323Y2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6424702U (en) * | 1987-08-03 | 1989-02-10 |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5375694U (en) * | 1976-11-29 | 1978-06-23 | ||
| JPS56147903A (en) * | 1980-04-14 | 1981-11-17 | Toshiba Mach Co Ltd | Hydraulic cylinder provided with speed reduction mechanism |
| JPS57146502A (en) * | 1981-03-06 | 1982-09-10 | Iseki Agricult Mach | Lifting and lowering control device of working machine |
| JPS58114905U (en) * | 1982-01-29 | 1983-08-05 | 三菱重工業株式会社 | Actuator hydraulic circuit |
| JPS5947103U (en) * | 1982-09-22 | 1984-03-29 | 株式会社神崎高級工機製作所 | Hydraulic supply device for agricultural hydraulic lift equipment |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5947103B2 (en) * | 1976-07-16 | 1984-11-16 | シャープ株式会社 | Flush toilet operation control device |
-
1984
- 1984-10-11 JP JP1984154034U patent/JPH058323Y2/ja not_active Expired - Lifetime
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5375694U (en) * | 1976-11-29 | 1978-06-23 | ||
| JPS56147903A (en) * | 1980-04-14 | 1981-11-17 | Toshiba Mach Co Ltd | Hydraulic cylinder provided with speed reduction mechanism |
| JPS57146502A (en) * | 1981-03-06 | 1982-09-10 | Iseki Agricult Mach | Lifting and lowering control device of working machine |
| JPS58114905U (en) * | 1982-01-29 | 1983-08-05 | 三菱重工業株式会社 | Actuator hydraulic circuit |
| JPS5947103U (en) * | 1982-09-22 | 1984-03-29 | 株式会社神崎高級工機製作所 | Hydraulic supply device for agricultural hydraulic lift equipment |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6424702U (en) * | 1987-08-03 | 1989-02-10 | ||
| JPH0520885Y2 (en) * | 1987-08-03 | 1993-05-28 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH058323Y2 (en) | 1993-03-02 |