JPS6385438U - - Google Patents
Info
- Publication number
- JPS6385438U JPS6385438U JP18007286U JP18007286U JPS6385438U JP S6385438 U JPS6385438 U JP S6385438U JP 18007286 U JP18007286 U JP 18007286U JP 18007286 U JP18007286 U JP 18007286U JP S6385438 U JPS6385438 U JP S6385438U
- Authority
- JP
- Japan
- Prior art keywords
- speed
- transmission
- drive
- steering handle
- front wheel
- 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
- 230000005540 biological transmission Effects 0.000 claims description 10
- 238000010586 diagram Methods 0.000 description 2
Landscapes
- Arrangement And Driving Of Transmission Devices (AREA)
Description
図面は本考案に係る作業車の変速操作構造の実
施例を示し、第１図は操縦ハンドルと前輪変速装
置との連係状態を示す図、第２図は副変速装置及
び前輪変速装置の概略図、第３図は農用トラクタ
の全体側面図である。
１……前輪、１０……前輪変速装置、１０ａ…
…操作部、１４……操縦ハンドル、２８……油圧
シリンダ、２９……制御弁、２９ａ……スプール
。
The drawings show an embodiment of the speed change operation structure for a working vehicle according to the present invention, and FIG. 1 is a diagram showing the state of connection between the operating handle and the front wheel transmission, and FIG. 2 is a schematic diagram of the auxiliary transmission and the front wheel transmission. , FIG. 3 is an overall side view of the agricultural tractor. 1...Front wheel, 10...Front wheel transmission, 10a...
...Operation unit, 14...Control handle, 28...Hydraulic cylinder, 29...Control valve, 29a...Spool.
Claims (1)
に略等しい伝動速度で伝動する標準駆動状態と、
後輪駆動速度より大きい駆動速度で伝動する増速
駆動状態に切換えるクラツチ式の前輪変速装置１
０を備えると共に、少なくとも増速駆動系のクラ
ツチを機械操作式の摩擦クラツチ１８に構成して
ある作業車の変速操作構造であつて、倍力用の油
圧シリンダ２８と前記前輪変速装置１０の操作部
１０ａとを機械的に連動連結すると共に、前記油
圧シリンダ２８に取付けた制御弁２９のスプール
２９ａと操縦ハンドル１４とを機械的に連動連結
して、前記操縦ハンドル１４による設定角度以上
の操向操作により前輪変速装置１０が前記油圧シ
リンダ２８を介して増速駆動側に倍力操作される
ように構成してある作業車の変速操作構造。 a standard drive state in which the transmission system to the steerable front wheels 1 transmits power at a transmission speed substantially equal to the rear wheel drive speed;
A clutch type front wheel transmission device 1 that switches to an increased speed drive state in which transmission is performed at a drive speed greater than the rear wheel drive speed.
0, and in which at least the clutch of the speed increasing drive system is configured as a mechanically operated friction clutch 18. At the same time, the spool 29a of the control valve 29 attached to the hydraulic cylinder 28 and the steering handle 14 are mechanically interlocked and connected to each other, and the steering handle 14 is operated by the steering handle 14 at an angle greater than or equal to a set angle. A speed change operation structure for a work vehicle configured such that the front wheel transmission 10 is operated to increase the speed of the front wheel transmission 10 through the hydraulic cylinder 28 in response to an operation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18007286U JPS6385438U (en) | 1986-11-21 | 1986-11-21 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18007286U JPS6385438U (en) | 1986-11-21 | 1986-11-21 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6385438U true JPS6385438U (en) | 1988-06-03 |
Family
ID=31123698
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP18007286U Pending JPS6385438U (en) | 1986-11-21 | 1986-11-21 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6385438U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0448030U (en) * | 1990-08-29 | 1992-04-23 |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58136521A (en) * | 1982-02-05 | 1983-08-13 | Kubota Ltd | Steering and traveling device of front wheel driven tractor |
-
1986
- 1986-11-21 JP JP18007286U patent/JPS6385438U/ja active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58136521A (en) * | 1982-02-05 | 1983-08-13 | Kubota Ltd | Steering and traveling device of front wheel driven tractor |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0448030U (en) * | 1990-08-29 | 1992-04-23 |