JPS60127103U - directional valve device - Google Patents
directional valve deviceInfo
- Publication number
- JPS60127103U JPS60127103U JP1202684U JP1202684U JPS60127103U JP S60127103 U JPS60127103 U JP S60127103U JP 1202684 U JP1202684 U JP 1202684U JP 1202684 U JP1202684 U JP 1202684U JP S60127103 U JPS60127103 U JP S60127103U
- Authority
- JP
- Japan
- Prior art keywords
- passage
- core
- spool
- valve
- side core
- 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
Landscapes
- Multiple-Way Valves (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
第1図は従来の方向切換弁を示す水平断面図、番2図は
第1図のI−I線分を示す断面図、第3図、第4図は入
位置およびフロート位置を示す断面不第5図は本考案の
一実施例を示す断面図、第6図、第7図は入位置および
フロート位置を示す断面図、第8図は本考案の他の実施
例を示す断面図である。
1・・・方向切換弁、2・・・弁体、4・・・センタバ
イパス通路、4a・・・中央コア、6a、6b・・・側
部コア、7a、7b・・・供給通路コア、8a、8b・
・・シリンタ通路、9a、9b・・・戻り通路、10・
・・スプーール、11・・田−ドチェック弁、12・・
・油圧シリシダ、15・・・チェック弁、16・・・油
室、17・・・ランド、18・・・通路、21・・・バ
ランスドピストン型リリーフ弁。Figure 1 is a horizontal cross-sectional view showing a conventional directional control valve, Figure 2 is a cross-sectional view taken along line I-I in Figure 1, and Figures 3 and 4 are cross-sectional views showing the engaged position and float position. FIG. 5 is a cross-sectional view showing one embodiment of the present invention, FIGS. 6 and 7 are cross-sectional views showing the input position and the float position, and FIG. 8 is a cross-sectional view showing another embodiment of the present invention. . DESCRIPTION OF SYMBOLS 1... Directional switching valve, 2... Valve body, 4... Center bypass passage, 4a... Central core, 6a, 6b... Side core, 7a, 7b... Supply passage core, 8a, 8b・
...Cylinder passage, 9a, 9b...Return passage, 10.
... Spool, 11... Field check valve, 12...
- Hydraulic cylinder, 15... Check valve, 16... Oil chamber, 17... Land, 18... Passage, 21... Balanced piston type relief valve.
Claims (2)
この側部コアの両側に供給通路コアおよびシリンタ通路
さらに戻り通路を順次形成する弁体と、この弁体の各コ
アおよび通路を横切って摺動可能に挿入され中立位置、
人出2つの切換位置およびフロート位置の4位置を取る
スプールと、このスプールにて制御される油圧シリンダ
と、この油圧シリンダに接続するシリンダ通、路と戻り
通路との間に配設されたチェック弁とからなる方向切換
弁において、前記チェック弁の油室を供給通路のコアと
バイパス通路の側部コアとの間に形成するランドに通路
を介して接続スるとともに、そのランドにおける通路の
開−口が側部コアのみに接続するスプールの梯励時にフ
ロー、上位置を得るよ゛うに構成したことを特、
徴とする方向切換弁装置。(1) A central core and a side core of the center bypass passage, a valve body that sequentially forms a supply passage core, a cylinder passage, and a return passage on both sides of the side core, and a valve body that slides across each core and passage of this valve body. movably inserted into neutral position,
A spool that takes four positions: two switching positions and a float position, a hydraulic cylinder controlled by this spool, a cylinder passage connected to this hydraulic cylinder, a check installed between the passage and the return passage. The oil chamber of the check valve is connected via a passage to a land formed between the core of the supply passage and the side core of the bypass passage, and the passage is opened in the land. -Specifically configured to obtain a flow, upper position when the spool is elevated, with the mouth connecting only to the side core;
Directional switching valve device.
弁にしたことを特徴とする実用新案登録請求の範囲第1
項記載の方向切換弁装置。(2) Utility model registration claim 1, characterized in that the check valve is a balanced piston type relief valve.
Directional switching valve device as described in .
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1202684U JPS60127103U (en) | 1984-01-31 | 1984-01-31 | directional valve device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1202684U JPS60127103U (en) | 1984-01-31 | 1984-01-31 | directional valve device |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS60127103U true JPS60127103U (en) | 1985-08-27 |
JPH0331841Y2 JPH0331841Y2 (en) | 1991-07-05 |
Family
ID=30494696
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP1202684U Granted JPS60127103U (en) | 1984-01-31 | 1984-01-31 | directional valve device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS60127103U (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2020148233A (en) * | 2019-03-12 | 2020-09-17 | ナブテスコ株式会社 | Control valve and construction machine hydraulic system |
-
1984
- 1984-01-31 JP JP1202684U patent/JPS60127103U/en active Granted
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2020148233A (en) * | 2019-03-12 | 2020-09-17 | ナブテスコ株式会社 | Control valve and construction machine hydraulic system |
CN111692146A (en) * | 2019-03-12 | 2020-09-22 | 纳博特斯克有限公司 | Control valve and hydraulic system for construction machinery |
Also Published As
Publication number | Publication date |
---|---|
JPH0331841Y2 (en) | 1991-07-05 |
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