JPH03100668U - - Google Patents
Info
- Publication number
- JPH03100668U JPH03100668U JP997690U JP997690U JPH03100668U JP H03100668 U JPH03100668 U JP H03100668U JP 997690 U JP997690 U JP 997690U JP 997690 U JP997690 U JP 997690U JP H03100668 U JPH03100668 U JP H03100668U
- Authority
- JP
- Japan
- Prior art keywords
- acting
- spool
- port
- switching valve
- double
- 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 1
Landscapes
- Multiple-Way Valves (AREA)
- Fluid-Pressure Circuits (AREA)
Description
第１図は電磁比例式の単動時の切換弁断面図、
第２図は同じく手動の場合の切換弁断面図、第３
図は同じくスプール操作部側面断面図、第４図は
単動でフロート時の切換弁断面図、第５図は第４
図における−断面図、第６図は複動時の断面
図、第７図はスプール端の斜視図、第８図は油圧
回路図、第９図は第８図に当てはめる複動時の切
換弁を示す油圧記号、第１０図は従来の切換バル
ブを示す断面図である。
Ａ……作用ポート、Ｐ……ポンプポート、Ｔ…
…タンクポート、１１……リフトアーム、１２…
…油圧シリンダー、２１……スプール。
Figure 1 is a cross-sectional view of an electromagnetic proportional type switching valve in single-acting mode.
Figure 2 is a cross-sectional view of the switching valve in the case of manual operation, and Figure 3
The figure is also a side cross-sectional view of the spool operation part, Figure 4 is a cross-sectional view of the switching valve when it is single acting and floating, and Figure 5 is a cross-sectional view of the switching valve when it is floating.
Figure 6 is a cross-sectional view in the double-acting mode, Figure 7 is the perspective view of the spool end, Figure 8 is the hydraulic circuit diagram, and Figure 9 is the switching valve in the double-acting mode that applies to Figure 8. 10 is a sectional view showing a conventional switching valve. A...Action port, P...Pump port, T...
...Tank port, 11...Lift arm, 12...
...Hydraulic cylinder, 21...Spool.
Claims (1)
リンダーを用い、該複動シリンダーの各油圧室へ
選択的に圧油を供給可能なスライド型の切換弁に
おいて、切換弁のスプールを一の位置から他の位
置へ一定角度に回動可能にし、その回動位置を固
定してスライド自在とすると共に、該スプールの
一の位置では該スプールがスライドして複動シリ
ンダーのリフトアーム下降側油室につながる作用
ポートＡとポンプポートＰが連通する状態におい
て、作用ポートＡとポンプポートＰをタンクポー
トＴに対し遮断し、他の位置では作用ポートＡ及
びポンプポートＰがタンクポートＴと連通したこ
とを特徴とする単動，複動切換弁。 (2) 請求項(1)において、切換弁のスプールを一
の位置から他の位置へ一定角度に回動自在とし、
その回動位置を固定する構造を、スプールの操作
端部を正多角形とし、回動固定具との係合面を変
更することにより行つたことを特徴とする単動・
複動切換弁。[Claims for Utility Model Registration] (1) A double-acting hydraulic cylinder is used to raise and lower the lift arm, and a slide-type switching valve is capable of selectively supplying pressure oil to each hydraulic chamber of the double-acting cylinder. , the spool of the switching valve is rotatable at a fixed angle from one position to another position, the rotational position is fixed and the spool is slidable, and the spool is slidable at the one position of the spool. When working port A and pump port P connected to the oil chamber on the lower side of the lift arm of the double-acting cylinder communicate with each other, working port A and pump port P are cut off from tank port T, and at other positions, working port A and pump A single-acting, double-acting switching valve characterized in that port P communicates with tank port T. (2) In claim (1), the spool of the switching valve is rotatable at a constant angle from one position to another position,
The single-acting type is characterized in that its rotational position is fixed by making the operating end of the spool a regular polygon and by changing the engagement surface with the rotation fixture.
Double-acting switching valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP997690U JPH03100668U (en) | 1990-02-03 | 1990-02-03 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP997690U JPH03100668U (en) | 1990-02-03 | 1990-02-03 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH03100668U true JPH03100668U (en) | 1991-10-21 |
Family
ID=31513560
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP997690U Pending JPH03100668U (en) | 1990-02-03 | 1990-02-03 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH03100668U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007185425A (en) * | 2006-01-16 | 2007-07-26 | Alcare Co Ltd | Ostomy pouch, its manufacturing method, and ostomy prosthesis |
-
1990
- 1990-02-03 JP JP997690U patent/JPH03100668U/ja active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007185425A (en) * | 2006-01-16 | 2007-07-26 | Alcare Co Ltd | Ostomy pouch, its manufacturing method, and ostomy prosthesis |
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