JPS6225302U - - Google Patents
Info
- Publication number
- JPS6225302U JPS6225302U JP11825485U JP11825485U JPS6225302U JP S6225302 U JPS6225302 U JP S6225302U JP 11825485 U JP11825485 U JP 11825485U JP 11825485 U JP11825485 U JP 11825485U JP S6225302 U JPS6225302 U JP S6225302U
- Authority
- JP
- Japan
- Prior art keywords
- switching valve
- actuator
- pilot oil
- piston
- present
- 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
- 238000010276 construction Methods 0.000 claims 2
- 238000010586 diagram Methods 0.000 description 7
Landscapes
- Operation Control Of Excavators (AREA)
- Servomotors (AREA)
- Multiple-Way Valves (AREA)
- Fluid-Pressure Circuits (AREA)
Description
第２図は本考案の概要を示す説明図、第２図、
第３図は本考案の作動状況を示す要部の断面図、
第４図は本考案の他の実施例の説明図、第５図、
第６図は従来から行なわれているものを示す図で
ある。
１…アクチユエータ、２…油圧ポンプ、３…切
換弁、１２…スプール、１８…ピストン、２１…
パイロツト油室。
Figure 2 is an explanatory diagram showing the outline of the present invention;
Figure 3 is a sectional view of the main parts showing the operating status of the present invention.
Fig. 4 is an explanatory diagram of another embodiment of the present invention; Fig. 5;
FIG. 6 is a diagram showing what has been conventionally done. DESCRIPTION OF SYMBOLS 1... Actuator, 2... Hydraulic pump, 3... Switching valve, 12... Spool, 18... Piston, 21...
Pilot oil room.
補正 昭６１．５．１２
図面の簡単な説明を次のように補正する。
明細書第８頁第７行目〜第１１行目に記載の「
第２図は本考案の〜示す図である。」とあるを下
記の如く補正する。
「第１図は本考案の概要を示す説明図、第２図
、第３図は本考案の作動状況を示す要部の断面図
、第４図は本考案の他の実施例の説明図、第５図
、第６図は従来から行なわれているものを示す図
である。」Amendment May 12, 1980 The brief description of the drawing is amended as follows. "
FIG. 2 is a diagram illustrating the present invention. '' should be corrected as follows. ` `Figure 1 is an explanatory diagram showing an overview of the present invention, Figures 2 and 3 are sectional views of main parts showing the operating status of the present invention, Figure 4 is an explanatory diagram of another embodiment of the present invention, Figures 5 and 6 are diagrams showing what has been done in the past.
Claims (1)
回路に設置して、アクチユエータを操作するため
の切換弁の一側部に、該切換弁のスプールと当接
してその移動を制限するためのピストンを嵌挿し
、その外側部にパイロツト油室を設け、ピストン
をパイロツト油圧で操作する如く構成したことよ
りなる建設機械の切換弁。 It is installed in a circuit between an actuator of a construction machine and a hydraulic pump, and a piston is inserted into one side of the switching valve for operating the actuator to abut the spool of the switching valve and limit its movement. A switching valve for construction machinery, comprising a pilot oil chamber provided on its outer side and a piston operated by pilot oil pressure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1985118254U JPH066245Y2 (en) | 1985-07-31 | 1985-07-31 | Switching valve device for construction machinery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1985118254U JPH066245Y2 (en) | 1985-07-31 | 1985-07-31 | Switching valve device for construction machinery |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6225302U true JPS6225302U (en) | 1987-02-16 |
| JPH066245Y2 JPH066245Y2 (en) | 1994-02-16 |
Family
ID=31004536
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1985118254U Expired - Lifetime JPH066245Y2 (en) | 1985-07-31 | 1985-07-31 | Switching valve device for construction machinery |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH066245Y2 (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4411269Y1 (en) * | 1964-10-12 | 1969-05-09 | ||
| JPS5337572A (en) * | 1976-09-20 | 1978-04-06 | Fuji Heavy Ind Ltd | Method of manufacturing nuts |
-
1985
- 1985-07-31 JP JP1985118254U patent/JPH066245Y2/en not_active Expired - Lifetime
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4411269Y1 (en) * | 1964-10-12 | 1969-05-09 | ||
| JPS5337572A (en) * | 1976-09-20 | 1978-04-06 | Fuji Heavy Ind Ltd | Method of manufacturing nuts |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH066245Y2 (en) | 1994-02-16 |