JPH0319176U - - Google Patents
Info
- Publication number
- JPH0319176U JPH0319176U JP8047989U JP8047989U JPH0319176U JP H0319176 U JPH0319176 U JP H0319176U JP 8047989 U JP8047989 U JP 8047989U JP 8047989 U JP8047989 U JP 8047989U JP H0319176 U JPH0319176 U JP H0319176U
- Authority
- JP
- Japan
- Prior art keywords
- control valve
- detent mechanism
- spool
- tractor
- return spring
- 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
- 230000007935 neutral effect Effects 0.000 claims description 2
- 238000010586 diagram Methods 0.000 description 2
Landscapes
- Lifting Devices For Agricultural Implements (AREA)
- Mechanically-Actuated Valves (AREA)
- Multiple-Way Valves (AREA)
Description
図面は本考案に係るトラクタの油圧装置構造の
実施例を示し、第1図ないし第3図はそれぞれ上
昇、中立、下降の各操作位置を示す制御弁の作動
状態図、第4図はデテント機構の要部図、第5図
は油圧回路構成図、第6図はガーデントラクタの
側面図、第7図、第8図はそれぞれ3点リンクユ
ニツトの取付構造を示す側面図、一部切り欠き要
部正面図である。
2……作業装置、3…油圧シリンダ、4……制
御弁、8……スプール、20……リターンスプリ
ング、A……デテント機構。
The drawings show an embodiment of the structure of a hydraulic system for a tractor according to the present invention, and FIGS. 1 to 3 are operating state diagrams of the control valve showing the operating positions of raising, neutral, and lowering, respectively, and FIG. 4 shows the detent mechanism. Figure 5 is a diagram of the main parts of the hydraulic circuit, Figure 6 is a side view of the garden tractor, Figures 7 and 8 are side views showing the mounting structure of the three-point link unit, and some cutaways. FIG. 2... Working device, 3... Hydraulic cylinder, 4... Control valve, 8... Spool, 20... Return spring, A... Detent mechanism.
Claims (1)
降させる単動型油圧シリンダ3、およびその制御
弁4を備えるとともに、前記制御弁4のスプール
8を中立位置に保持するデテント機構Aを設けて
あるトラクタの油圧装置構造であつて、上昇位置
に操作された前記制御弁4のスプール8を前記デ
テント機構Aの作用領域内までに戻すためのリタ
ーンスプリング20を設けてあるトラクタの油圧
装置構造。 A tractor equipped with a single-acting hydraulic cylinder 3 that drives and raises a working device 2, maintains its position, and lowers it under its own weight, and a control valve 4 thereof, and a detent mechanism A that holds a spool 8 of the control valve 4 in a neutral position. A hydraulic system structure for a tractor, which is provided with a return spring 20 for returning the spool 8 of the control valve 4 that has been operated to the raised position to within the action area of the detent mechanism A.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP8047989U JPH0319176U (en) | 1989-07-07 | 1989-07-07 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP8047989U JPH0319176U (en) | 1989-07-07 | 1989-07-07 |
Publications (1)
Publication Number | Publication Date |
---|---|
JPH0319176U true JPH0319176U (en) | 1991-02-25 |
Family
ID=31625578
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP8047989U Pending JPH0319176U (en) | 1989-07-07 | 1989-07-07 |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH0319176U (en) |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS51134133A (en) * | 1975-04-23 | 1976-11-20 | Dick Co Ab | Electrophotographic charger |
-
1989
- 1989-07-07 JP JP8047989U patent/JPH0319176U/ja active Pending
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS51134133A (en) * | 1975-04-23 | 1976-11-20 | Dick Co Ab | Electrophotographic charger |
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