JPH0227924U - - Google Patents
Info
- Publication number
- JPH0227924U JPH0227924U JP10724088U JP10724088U JPH0227924U JP H0227924 U JPH0227924 U JP H0227924U JP 10724088 U JP10724088 U JP 10724088U JP 10724088 U JP10724088 U JP 10724088U JP H0227924 U JPH0227924 U JP H0227924U
- Authority
- JP
- Japan
- Prior art keywords
- turning angle
- front wheel
- tractor
- detection signal
- angle sensor
- 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
- 230000005540 biological transmission Effects 0.000 claims description 6
- 238000001514 detection method Methods 0.000 claims description 3
- 238000005520 cutting process Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 3
Landscapes
- Non-Deflectable Wheels, Steering Of Trailers, Or Other Steering (AREA)
- Gear-Shifting Mechanisms (AREA)
- Indicating Or Recording The Presence, Absence, Or Direction Of Movement (AREA)
- Arrangement And Driving Of Transmission Devices (AREA)
Description
図面は本考案の一実施例を示すものであつて、
第１図は制御回路図、第２図は制御システム図、
第３図は変速装置及び油圧回路図、第４図は前輪
支持部の平面図、第５図は切れ角検出装置の他の
例の断面図である。
３……電磁弁、４……変速装置、７……デスク
ブレーキ、８……操向ハンドル、９……切換バル
ブ、１０……パワシリンダ、１２……受板、１５
……駆動板、１７……制御ユニツト。
The drawings show one embodiment of the present invention,
Figure 1 is a control circuit diagram, Figure 2 is a control system diagram,
FIG. 3 is a transmission and hydraulic circuit diagram, FIG. 4 is a plan view of the front wheel support section, and FIG. 5 is a sectional view of another example of the turning angle detection device. 3... Solenoid valve, 4... Transmission, 7... Desk brake, 8... Steering handle, 9... Switching valve, 10... Power cylinder, 12... Receiving plate, 15
...Drive plate, 17...Control unit.
Claims (1)
を介装し、操向系に切れ角センサーを設け、該切
れ角センサーの検出信号により前記変速装置４を
増速切換するようにしたトラクタにおいて、前記
変速装置４の制御回路に、操向操作具を戻し作動
させる行程では、切り作動行程より大きい切れ角
で前記検出信号が消去する回路を挿入したことを
特徴とするトラクタにおける前輪変速装置。 Transmission device 4 in the front wheel transmission system that increases speed when the aircraft is rotating
In the tractor, the steering system is equipped with a turning angle sensor, and the transmission 4 is increased in speed based on the detection signal of the turning angle sensor. A front wheel transmission device for a tractor, characterized in that a circuit is inserted in which the detection signal is erased at a turning angle larger than that in the cutting operation stroke in a stroke of returning the tool.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1988107240U JP2509137Y2 (en) | 1988-08-13 | 1988-08-13 | Front wheel transmission in tractor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1988107240U JP2509137Y2 (en) | 1988-08-13 | 1988-08-13 | Front wheel transmission in tractor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0227924U true JPH0227924U (en) | 1990-02-23 |
| JP2509137Y2 JP2509137Y2 (en) | 1996-08-28 |
Family
ID=31341476
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1988107240U Expired - Fee Related JP2509137Y2 (en) | 1988-08-13 | 1988-08-13 | Front wheel transmission in tractor |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2509137Y2 (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6053471A (en) * | 1983-09-02 | 1985-03-27 | Kubota Ltd | Agricultural tractor |
| JPS6076475A (en) * | 1983-10-03 | 1985-04-30 | Kubota Ltd | Control arrangement for agricultural tractor |
| JPS63195026A (en) * | 1987-02-10 | 1988-08-12 | Kubota Ltd | Speed changing structure of working vehicle |
-
1988
- 1988-08-13 JP JP1988107240U patent/JP2509137Y2/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6053471A (en) * | 1983-09-02 | 1985-03-27 | Kubota Ltd | Agricultural tractor |
| JPS6076475A (en) * | 1983-10-03 | 1985-04-30 | Kubota Ltd | Control arrangement for agricultural tractor |
| JPS63195026A (en) * | 1987-02-10 | 1988-08-12 | Kubota Ltd | Speed changing structure of working vehicle |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2509137Y2 (en) | 1996-08-28 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |