JPS59156412U - ground work vehicle - Google Patents
ground work vehicleInfo
- Publication number
- JPS59156412U JPS59156412U JP5134983U JP5134983U JPS59156412U JP S59156412 U JPS59156412 U JP S59156412U JP 5134983 U JP5134983 U JP 5134983U JP 5134983 U JP5134983 U JP 5134983U JP S59156412 U JPS59156412 U JP S59156412U
- Authority
- JP
- Japan
- Prior art keywords
- port
- hydraulic cylinder
- control valve
- valve
- driving
- 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
- Harvester Elements (AREA)
- Guiding Agricultural Machines (AREA)
- Transplanting Machines (AREA)
- Lifting Devices For Agricultural Implements (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
図面は本考案に係る対地作業車の実施例を示し、第１図
はコンバインの一部省略側面図、第２図は昇降制御機構
を示す機構図、第３図は要部の縦断面図、第４図は第３
図のＩＶ−ＩＶ線断面図、第５図は中立状態の制御弁の
縦断面図、第６図は第５図の要部を部分的に展開すると
共に操向制御機構を組込んで示した断面図である。
７・・・・・・作業装置、８・・・・・・単動式油圧シ
リンダ、１０・・・・・・センサー、１２・・・・・・
制御弁、１４・・・・・・昇降制御機構、１５・・・・
・・弁体、２４・・・・・・人為操作具、２８・・・・
・・他装置駆動用油圧アクチュエータ、２９・・・・・
・凹部、３０・・・・・・小径油路、Ｐ□・パ・・・・
シリンダへの供給ポート、Ｐ２・・・・・・ポンプポー
ト、Ｐ、・・曲キャリオーバーポート。
第２図
一一耐一−ｆ
２２６
第４図 −The drawings show an embodiment of the ground work vehicle according to the present invention, FIG. 1 is a partially omitted side view of a combine harvester, FIG. 2 is a mechanism diagram showing the elevation control mechanism, and FIG. 3 is a longitudinal cross-sectional view of the main parts. Figure 4 is the third
5 is a longitudinal sectional view of the control valve in the neutral state, and FIG. 6 is a partially expanded view of the main part of FIG. 5 with the steering control mechanism incorporated. FIG. 7... Work device, 8... Single acting hydraulic cylinder, 10... Sensor, 12...
Control valve, 14... Elevation control mechanism, 15...
... Valve body, 24 ... Human operating tool, 28 ...
...Hydraulic actuator for driving other devices, 29...
・Concavity, 30...Small diameter oil path, P□・Pa...
Supply port to cylinder, P2...Pump port, P...Curved carryover port. Figure 2 11-1-f 226 Figure 4 -
Claims (1)
して昇降自在に設け、前記作業装置７の対地レベルを検
出するセンサー１０を設けると共に、そのセンサー１０
と前記油圧シリンダ８に対する制御弁１２とを連係して
前記センサー１０による検出対地レベルを設定範囲内に
維持するように前記制御弁１２を移動操作する昇降制御
機構１４とを備え、かつ、前記制御弁１２を介して他装
置駆動用油圧アクチュエータ２８に圧油を供給可能に構
成すると共に前記制御弁１２に人為操作具２４を連係し
た対地作業車であって、前記制御弁１２を構成するに、
その弁体１５に、ポンプポットＰ２に対して前記油圧シ
リンダ８への供給ポートＰ１と前記他装置駆動用油圧ア
クチュエータ２８へのキャリオーバーポー）Ｐ４とを択
一的に連通ずるための凹部２９を形成すると共に、前記
ポンプポートＰ２と前記供給ポートＰ１との連通状態に
おける前記弁体１５の上昇用移動側設定範囲においての
み前記ポンプポートＰ２と前記キャリオーバーポートＰ
、とを連通させる小径油路３０を前記弁体１５に設けで
ある対地作業車。 ■ 前記他装置駆動用アクチュエータが、所定列に沿わ
せて機体を走行させる自動操向制御機構を構成する操向
クラッチ操作用の油圧シリンダ・ ２８．２８である
実用新案登録請求の範囲第■ ７項に記載の対地作
業車。[Scope of Claim for Utility Model Registration] ■ A working device 7 is provided on the traveling vehicle body via a single-acting hydraulic cylinder 8 so that it can be raised and lowered freely, and a sensor 10 is provided to detect the ground level of the working device 7.
and a lift control mechanism 14 that moves and operates the control valve 12 in conjunction with the control valve 12 for the hydraulic cylinder 8 so as to maintain the ground level detected by the sensor 10 within a set range, and A ground work vehicle configured to be able to supply pressure oil to a hydraulic actuator 28 for driving other devices via a valve 12, and in which a human operating tool 24 is linked to the control valve 12, and the control valve 12 includes:
The valve body 15 is provided with a recess 29 for selectively communicating the supply port P1 to the hydraulic cylinder 8 and the carryover port P4 to the hydraulic actuator 28 for driving other devices with respect to the pump pot P2. At the same time, the pump port P2 and the carryover port P are connected only in the setting range on the upward movement side of the valve body 15 when the pump port P2 and the supply port P1 are in communication with each other.
, in which the valve body 15 is provided with a small diameter oil passage 30 that communicates with the above. ■ Scope of Utility Model Registration Claim No. 7, wherein the actuator for driving other devices is a hydraulic cylinder for operating a steering clutch that constitutes an automatic steering control mechanism that causes the aircraft to travel along a predetermined line. Ground work vehicle described in section.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5134983U JPS59156412U (en) | 1983-04-06 | 1983-04-06 | ground work vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5134983U JPS59156412U (en) | 1983-04-06 | 1983-04-06 | ground work vehicle |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS59156412U true JPS59156412U (en) | 1984-10-20 |
| JPH0333212Y2 JPH0333212Y2 (en) | 1991-07-15 |
Family
ID=30181763
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5134983U Granted JPS59156412U (en) | 1983-04-06 | 1983-04-06 | ground work vehicle |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS59156412U (en) |
-
1983
- 1983-04-06 JP JP5134983U patent/JPS59156412U/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0333212Y2 (en) | 1991-07-15 |
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