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
- Mechanically-Actuated Valves (AREA)
- Multiple-Way Valves (AREA)
- Lifting Devices For Agricultural Implements (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 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JPH0319176U (en) | ||
| JPS61197804U (en) | ||
| JPS6033814U (en) | Agricultural tractor work equipment lifting device | |
| JPH0474907U (en) | ||
| JPS62178811U (en) | ||
| JPH0392908U (en) | ||
| JPS61146115U (en) | ||
| JPS6283405U (en) | ||
| JPS63174609U (en) | ||
| JPS6338710U (en) | ||
| JPS61197807U (en) | ||
| JPS5824107U (en) | Tractor hydraulic structure | |
| JPS6280509U (en) | ||
| JPS63109708U (en) | ||
| JPS6242715U (en) | ||
| JPH03100505U (en) | ||
| JPS6371607U (en) | ||
| JPS62136106U (en) | ||
| JPH01121309U (en) | ||
| JPS6154307U (en) | ||
| JPH0354114U (en) | ||
| JPH039108U (en) | ||
| JPH0356304U (en) | ||
| JPH0160617U (en) | ||
| JPH03129007U (en) |