JPS63161077U - - Google Patents
Info
- Publication number
- JPS63161077U JPS63161077U JP5548887U JP5548887U JPS63161077U JP S63161077 U JPS63161077 U JP S63161077U JP 5548887 U JP5548887 U JP 5548887U JP 5548887 U JP5548887 U JP 5548887U JP S63161077 U JPS63161077 U JP S63161077U
- Authority
- JP
- Japan
- Prior art keywords
- control valve
- friction brake
- hydraulic piston
- hydraulic
- steering lever
- 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
- 230000001105 regulatory effect Effects 0.000 claims description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000007781 pre-processing Methods 0.000 description 1
Description
図面は本考案に係る作業車の操向装置の実施例
を示し、第１図は操作構造の概略図、第２図は前
処理部昇降レバーガイドの平面図、第３図はクラ
ツチ及びブレーキの断面図、第４図はコントロー
ルバルブ及び油圧調節弁の断面図、第５図は油圧
調節弁操作部の側面図、第６図は油圧回路図、第
７図はコンバイン前部の側面図である。
１７，１８……油圧ピストン、１９……コント
ロールバルブ、２８……操向レバー、３６……機
械式連動機構、３８……駆動機構、４３……操作
スイツチ、ＢＬ，ＢＲ……摩擦ブレーキ、ＬＶ…
…油圧調節弁。
The drawings show an embodiment of the steering device for a working vehicle according to the present invention, in which Fig. 1 is a schematic diagram of the operating structure, Fig. 2 is a plan view of the preprocessing section lifting lever guide, and Fig. 3 is a diagram of the clutch and brake. 4 is a sectional view of the control valve and the hydraulic pressure regulating valve, FIG. 5 is a side view of the hydraulic regulating valve operation section, FIG. 6 is a hydraulic circuit diagram, and FIG. 7 is a side view of the front part of the combine. . 17, 18... Hydraulic piston, 19... Control valve, 28... Steering lever, 36... Mechanical interlocking mechanism, 38... Drive mechanism, 43... Operation switch, BL, BR... Friction brake, LV …
...Hydraulic control valve.
Claims (1)
を操作する油圧ピストン（１７または１８）、及
び、前記油圧ピストン（１７または１８）のブレ
ーキ入り操作圧を調節する油圧調節弁ＬＶを設け
、前記摩擦ブレーキ（ＢＬまたはＢＲ）が切りで
ある直進状態、前記摩擦ブレーキ（ＢＬまたはＢ
Ｒ）が入りで前記油圧調節弁ＬＶが低圧を設定す
る第１旋回状態、前記摩擦ブレーキ（ＢＬまたは
ＢＲ）が入りで前記油圧調節弁ＬＶが高圧を設定
する第２旋回状態が１本の操向レバー２８の一連
の操作によつて現出されるように、前記操向レバ
ー２８を前記油圧ピストン（１７または１８）の
コントロールバルブ１９に連係させ、かつ、前記
油圧調節弁ＬＶに機械式連動機構３６を介して連
動させた作業車の操向装置であつて、前記油圧調
節弁ＬＶを高圧設定状態に前記操向レバー２８に
優先して操作する駆動機構３８を設けると共に、
この駆動機構３８の操作スイツチ４３を前記操向
レバー２８の握り部に備えてある作業車の操向装
置。 Friction brake for aircraft orientation (BL or BR)
A hydraulic piston (17 or 18) for operating the hydraulic piston (17 or 18), and a hydraulic control valve LV for adjusting the brake-on operation pressure of the hydraulic piston (17 or 18) are provided, and the friction brake (BL or BR) is in a straight-ahead state where the friction brake (BL or BR) is off. , the friction brake (BL or B
A first swing state in which the oil pressure control valve LV sets a low pressure when R) is engaged, and a second swing state in which the friction brake (BL or BR) is engaged and the oil pressure control valve LV sets a high pressure are one operation. The steering lever 28 is linked to the control valve 19 of the hydraulic piston (17 or 18) and is mechanically linked to the hydraulic pressure regulating valve LV so as to be brought out by a series of operations of the steering lever 28. A steering device for a working vehicle is linked via a mechanism 36, and includes a drive mechanism 38 that operates the oil pressure control valve LV to a high pressure setting state with priority over the steering lever 28.
This is a steering device for a working vehicle, in which an operating switch 43 of the drive mechanism 38 is provided on the grip portion of the steering lever 28.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987055488U JPH079735Y2 (en) | 1987-04-13 | 1987-04-13 | Combine steering device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987055488U JPH079735Y2 (en) | 1987-04-13 | 1987-04-13 | Combine steering device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS63161077U true JPS63161077U (en) | 1988-10-20 |
| JPH079735Y2 JPH079735Y2 (en) | 1995-03-08 |
Family
ID=30883430
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1987055488U Expired - Lifetime JPH079735Y2 (en) | 1987-04-13 | 1987-04-13 | Combine steering device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH079735Y2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2015178100A1 (en) * | 2014-05-19 | 2015-11-26 | ヤンマー株式会社 | Combine harvester |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5227026U (en) * | 1975-08-19 | 1977-02-25 | ||
| JPS60261783A (en) * | 1984-06-07 | 1985-12-25 | Iseki & Co Ltd | Steering unit of movable agricultural machine |
-
1987
- 1987-04-13 JP JP1987055488U patent/JPH079735Y2/en not_active Expired - Lifetime
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5227026U (en) * | 1975-08-19 | 1977-02-25 | ||
| JPS60261783A (en) * | 1984-06-07 | 1985-12-25 | Iseki & Co Ltd | Steering unit of movable agricultural machine |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2015178100A1 (en) * | 2014-05-19 | 2015-11-26 | ヤンマー株式会社 | Combine harvester |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH079735Y2 (en) | 1995-03-08 |