JPH0426823U - - Google Patents
Info
- Publication number
- JPH0426823U JPH0426823U JP6940090U JP6940090U JPH0426823U JP H0426823 U JPH0426823 U JP H0426823U JP 6940090 U JP6940090 U JP 6940090U JP 6940090 U JP6940090 U JP 6940090U JP H0426823 U JPH0426823 U JP H0426823U
- Authority
- JP
- Japan
- Prior art keywords
- double speed
- front wheels
- double
- wheel drive
- wheels
- 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
- 238000001514 detection method Methods 0.000 claims 2
- 230000005540 biological transmission Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
Landscapes
- Arrangement And Driving Of Transmission Devices (AREA)
- Gear-Shifting Mechanisms (AREA)
Description
第１図は本考案実施例の分解斜視図、第２図は
動力伝達系の側断面図、第３図は同じく背面図、
第４図は枢支部の拡大断面図、第５図はトラクタ
の側面図、第６図は直進時の第７図は旋回時の各
要部平面図、第８図は倍速ターン時の動力伝達系
を示す側断面図、第９図は旋回説明図である。
２……前輪、３……後輪、１１……前輪動力取
出し装置、２９……倍速カム、３４……逃し部、
３５……倍速ロツド、３６……倍速シフトレバー
、３８……戻しバネ。
Fig. 1 is an exploded perspective view of the embodiment of the present invention, Fig. 2 is a side sectional view of the power transmission system, Fig. 3 is also a rear view,
Figure 4 is an enlarged sectional view of the pivot, Figure 5 is a side view of the tractor, Figure 6 is when it is traveling straight, Figure 7 is a plan view of the main parts when turning, and Figure 8 is power transmission when turning at double speed. A side sectional view showing the system, and FIG. 9 is an explanatory diagram of turning. 2...Front wheel, 3...Rear wheel, 11...Front wheel power take-off device, 29...Double speed cam, 34...Relief portion,
35...Double speed rod, 36...Double speed shift lever, 38...Return spring.
Claims (1)
前輪２を非駆動とし後輪３を駆動する２ＷＤと、
前輪２が所定の旋回角度になるとこれを検出する
検出手段３１を有して前記４ＷＤでかつ前輪２の
外周速を後輪３より早くする倍速ターンと、に切
換可能な四輪駆動トラクタの前輪駆動切換装置で
あつて、前記検出手段３１に応動する倍速カム２
９と、戻しバネ３８で戻し方向に付勢されている
倍速シフトレバー３６と、前記倍速カム２９と倍
速シフトレバー３６とを連動連結している倍速ロ
ツド３５と、を備え、前記倍速カム２９と倍速ロ
ツド３５との連動連結部に、長孔３２とピン３３
による逃し部３４を設けたことを特徴とする四輪
駆動トラクタの前輪駆動切換装置。 4WD that drives both front wheels 2 and rear wheels 3;
2WD in which the front wheels 2 are not driven and the rear wheels 3 are driven;
The front wheels of a four-wheel drive tractor are equipped with a detection means 31 for detecting when the front wheels 2 reach a predetermined turning angle, and are capable of switching to a double-speed turn in which the outer circumferential speed of the front wheels 2 is faster than the rear wheels 3. A double speed cam 2 which is a drive switching device and responds to the detection means 31.
9, a double speed shift lever 36 biased in the return direction by a return spring 38, and a double speed rod 35 interlockingly connecting the double speed cam 29 and the double speed shift lever 36. A long hole 32 and a pin 33 are connected to the double speed rod 35.
A front wheel drive switching device for a four-wheel drive tractor, characterized in that a relief portion 34 is provided.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6940090U JPH0426823U (en) | 1990-06-28 | 1990-06-28 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6940090U JPH0426823U (en) | 1990-06-28 | 1990-06-28 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0426823U true JPH0426823U (en) | 1992-03-03 |
Family
ID=31604671
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6940090U Pending JPH0426823U (en) | 1990-06-28 | 1990-06-28 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0426823U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2012228956A (en) * | 2011-04-26 | 2012-11-22 | Iseki & Co Ltd | Working vehicle |
-
1990
- 1990-06-28 JP JP6940090U patent/JPH0426823U/ja active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2012228956A (en) * | 2011-04-26 | 2012-11-22 | Iseki & Co Ltd | Working vehicle |