JPS6087257U - Front loader hydraulic control device - Google Patents
Front loader hydraulic control deviceInfo
- Publication number
- JPS6087257U JPS6087257U JP17897683U JP17897683U JPS6087257U JP S6087257 U JPS6087257 U JP S6087257U JP 17897683 U JP17897683 U JP 17897683U JP 17897683 U JP17897683 U JP 17897683U JP S6087257 U JPS6087257 U JP S6087257U
- Authority
- JP
- Japan
- Prior art keywords
- boom
- front loader
- control device
- cylinder
- hydraulic control
- 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
Landscapes
- Operation Control Of Excavators (AREA)
- Fluid-Pressure Circuits (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−例を示す油圧回路図、第２図乃至第６図
は本考案の第１実施例を示し、第２図は全体側面図、第
３図はリンパによる掘削作業を示す一部側面図、第４図
は第２図のＡ矢視図、第５図は作業部シリンダの断面図
、第６図は油圧回路図、第７図は本考案の第２実施例を
示す油圧回路図である。
１０・・・トラクタ、１２・・・作業機昇降用油圧装Ｌ
１３−・・フロントローダ、１５・・・ブーム、１６・
・・ブームシリンダ、１７・・・作業部、１８・・・作
業部シリンダ、３３・・・ブームシリンダ制御弁、３４
・・・作業部シリンダ制御弁、３５・・・油圧ポンプ。
南−］１
巴■
ｒ上目 −
−１−ｒ“几 ゛
（社）］
ｂ７■
／Ｌ−−イ」−一一書
第３図
ゝ’２１ ”
第４図
第５図
−
第７図
口
” Ｂｑ３７Fig. 1 is a hydraulic circuit diagram showing a conventional example, Figs. 2 to 6 show a first embodiment of the present invention, Fig. 2 is an overall side view, and Fig. 3 is a diagram showing excavation work using lymph. 4 is a view taken in the direction of arrow A in FIG. 2, FIG. 5 is a sectional view of the working cylinder, FIG. 6 is a hydraulic circuit diagram, and FIG. 7 is a hydraulic diagram showing the second embodiment of the present invention. It is a circuit diagram. 10...Tractor, 12...Hydraulic system L for lifting and lowering work equipment
13-...Front loader, 15...Boom, 16-
...Boom cylinder, 17...Working part, 18...Working part cylinder, 33...Boom cylinder control valve, 34
... Working part cylinder control valve, 35... Hydraulic pump. South -] 1 Tomoe■ r upper page - -1-r "几゛(sha)] b7■ /L--i" - Book 11, Figure 3 ゝ'21'' Figure 4 Figure 5 - Figure 7 Mouth” Bq37
Claims (1)
フロントローダに、ブームを上下揺動させるブームシリ
ンダと、ブーム先端部の作業部を操作する作業部シリン
ダとを備えたものにおいて、油圧装置と、ブーム上昇操
作位置でブームシリンダからの戻り油をタンクに戻し且
つ中立位置で油圧装置に圧油を供給するブームシリンダ
制御弁と、作業部シリンダ制御弁と、油圧ポンプとを上
記の順で直列に接続したことを特徴とするフロントロー
ダの油圧制御装置。Attach a front loader to a tractor equipped with a hydraulic system,
In a front loader equipped with a boom cylinder that swings the boom up and down and a work cylinder that operates the work part at the tip of the boom, there is a hydraulic system and a tank for storing return oil from the boom cylinder at the boom raising operation position. A hydraulic control device for a front loader, characterized in that a boom cylinder control valve that returns pressure oil to the hydraulic system at a neutral position, a working section cylinder control valve, and a hydraulic pump are connected in series in the above order. .
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17897683U JPS6087257U (en) | 1983-11-18 | 1983-11-18 | Front loader hydraulic control device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17897683U JPS6087257U (en) | 1983-11-18 | 1983-11-18 | Front loader hydraulic control device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6087257U true JPS6087257U (en) | 1985-06-15 |
Family
ID=30388431
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP17897683U Pending JPS6087257U (en) | 1983-11-18 | 1983-11-18 | Front loader hydraulic control device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6087257U (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5633370B2 (en) * | 1977-05-27 | 1981-08-03 |
-
1983
- 1983-11-18 JP JP17897683U patent/JPS6087257U/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5633370B2 (en) * | 1977-05-27 | 1981-08-03 |
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