JPS63145407U - - Google Patents
Info
- Publication number
- JPS63145407U JPS63145407U JP3747487U JP3747487U JPS63145407U JP S63145407 U JPS63145407 U JP S63145407U JP 3747487 U JP3747487 U JP 3747487U JP 3747487 U JP3747487 U JP 3747487U JP S63145407 U JPS63145407 U JP S63145407U
- Authority
- JP
- Japan
- Prior art keywords
- ground
- control valve
- accumulator
- operating state
- hydraulic cylinder
- 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
- 238000001514 detection method Methods 0.000 claims description 2
- 238000007781 pre-processing Methods 0.000 claims description 2
- 230000007935 neutral effect Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 1
Landscapes
- Lifting Devices For Agricultural Implements (AREA)
- Harvester Elements (AREA)
Description
図面は本考案に係る作業車の対地昇降操作構造
の実施例を示し、第１図は刈取前処理部を昇降駆
動操作する油圧回路図、第２図は全稈投入型コン
バインの全体側面図である。
８……対地作業装置、９……油圧シリンダ、１
０……コントロールバルブ、１３……油路、１４
……アキユムレータ、Ｓ……対地高さ検出センサ
ー。
The drawings show an embodiment of the structure for lifting and lowering the work vehicle from the ground according to the present invention. Figure 1 is a hydraulic circuit diagram for lifting and lowering the reaping pre-processing section, and Figure 2 is an overall side view of a full-culm input type combine harvester. be. 8...Ground work device, 9...Hydraulic cylinder, 1
0... Control valve, 13... Oil path, 14
...Accumulator, S...Ground height detection sensor.
Claims (1)
ダ９に対するコントロールバルブ１０を、前記作
業装置８に付設した対地高さ検出センサーＳから
の信号に基づいて作動させて前記対地作業装置８
の対地高さを設定範囲に維持するよう構成してあ
る作業車の対地昇降操作構造であつて、前記油圧
シリンダ９とコントロールバルブ１０とを接続す
る油路１３に、アキユムレータ１４を前記油路１
３と連通する作動状態と、油路１３と遮断される
非作動状態とに切り換え可能に付設するとともに
、コントロールバルブ１０が中立時にはアキユム
レータ１４が作動状態に、コントロールバルブ１
０が上昇作動時にはアキユムレータ１４が非作動
状態となるようコントロールバルブ１０とアキユ
ムレータ１４とを連係してある作業車の対地昇降
操作構造。 ２ 前記対地作業装置８がコンバインにおける刈
取前処理部である実用新案登録請求の範囲第１項
に記載の作業車の対地昇降操作構造。[Claims for Utility Model Registration] 1. A control valve 10 for a hydraulic cylinder 9 that drives the ground work device 8 up and down is actuated based on a signal from a height above ground detection sensor S attached to the work device 8. Work equipment 8
In this structure, an accumulator 14 is connected to an oil passage 13 connecting the hydraulic cylinder 9 and a control valve 10, and is configured to maintain the height above the ground within a set range.
When the control valve 10 is in the neutral state, the accumulator 14 is in the operating state and the control valve 14 is in the operating state.
This ground lifting/lowering operation structure for a working vehicle has a control valve 10 and an accumulator 14 linked together so that the accumulator 14 is in a non-operating state when 0 is in a lifting operation. 2. The ground lifting operation structure for a working vehicle according to claim 1, wherein the ground working device 8 is a reaping pre-processing section in a combine harvester.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3747487U JPH0545128Y2 (en) | 1987-03-14 | 1987-03-14 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3747487U JPH0545128Y2 (en) | 1987-03-14 | 1987-03-14 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS63145407U true JPS63145407U (en) | 1988-09-26 |
| JPH0545128Y2 JPH0545128Y2 (en) | 1993-11-17 |
Family
ID=30848829
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3747487U Expired - Lifetime JPH0545128Y2 (en) | 1987-03-14 | 1987-03-14 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0545128Y2 (en) |
-
1987
- 1987-03-14 JP JP3747487U patent/JPH0545128Y2/ja not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0545128Y2 (en) | 1993-11-17 |
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