JPS63202524U - - Google Patents
Info
- Publication number
- JPS63202524U JPS63202524U JP9473587U JP9473587U JPS63202524U JP S63202524 U JPS63202524 U JP S63202524U JP 9473587 U JP9473587 U JP 9473587U JP 9473587 U JP9473587 U JP 9473587U JP S63202524 U JPS63202524 U JP S63202524U
- Authority
- JP
- Japan
- Prior art keywords
- transmission
- piston rods
- drive
- front wheels
- speed
- 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 8
Landscapes
- Arrangement And Driving Of Transmission Devices (AREA)
Description
図面は本考案に係る四輪駆動型作業車の実施例
を示し、第1図はパワーステアリング用の複動型
油圧シリンダと前輪変速装置との連係状態を示す
図、第2図はリミツトスイツチ付近の平面図、第
3図は前輪変速装置の縦断側面図、第4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、20…制御装
置、21…複動型油圧シリンダ、22a,22b
…ピストンロツド、23,24…架橋部材、30
…センサー。
The drawings show an embodiment of the four-wheel drive type work vehicle according to the present invention, and FIG. 1 shows the state of connection between the double-acting hydraulic cylinder for power steering and the front wheel transmission, and FIG. A plan view, FIG. 3 is a longitudinal sectional side view of the front wheel transmission, and FIG. 4 is an overall side view of the agricultural tractor. DESCRIPTION OF SYMBOLS 1... Front wheel, 10... Front wheel transmission, 20... Control device, 21... Double-acting hydraulic cylinder, 22a, 22b
...Piston rod, 23, 24...Bridging member, 30
…sensor.
Claims (1)
と略等しい駆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
駆動状態とに切換える前輪変速装置10を備える
と共に、前記前輪1の設定角度以上の操向操作に
より、前輪変速装置10を増速駆動状態側に切換
操作する制御装置20を備えてある四輪駆動型作
業車であつて、パワーステアリング用の複動型油
圧シリンダ21から左右にピストンロツド22a
,22bを突出延出し、前記両ピストンロツド2
2a,22bの各々を左右前輪1のナツクルアー
ム26に連係させると共に、前記複動型油圧シリ
ンダ21左右から突出した両ピストンロツド22
a,22b部位に亘つてブリツジ状の架橋部材2
3,24を架設し、前記架橋部材23,24の基
準位置からの設定以上の横移動を電気的に検出し
前記制御装置20に伝達するセンサー30を備え
てある四輪駆動型作業車。 a standard drive state in which the transmission system to the steerable front wheels 1 transmits power at a drive speed substantially equal to the rear wheel drive speed;
The front wheel transmission 10 is equipped with a front wheel transmission 10 that switches to an increased speed drive state in which transmission is performed at a drive speed greater than the rear wheel drive speed, and the front wheel transmission 10 is switched to the increased speed drive state by a steering operation of the front wheels 1 at a set angle or more. It is a four-wheel drive type work vehicle equipped with a control device 20 for switching operation, and piston rods 22a are installed on the left and right from a double-acting hydraulic cylinder 21 for power steering.
, 22b protrude and extend, and both the piston rods 2
2a and 22b are linked to the knuckle arms 26 of the left and right front wheels 1, and both piston rods 22 protrude from the left and right sides of the double-acting hydraulic cylinder 21.
A bridge-shaped bridging member 2 extends over the a and 22b portions.
3 and 24, and is equipped with a sensor 30 that electrically detects lateral movement of the bridging members 23 and 24 from a reference position beyond a set value and transmits the detected lateral movement to the control device 20.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1987094735U JPH0630525Y2 (en) | 1987-06-19 | 1987-06-19 | Four-wheel drive work vehicle |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1987094735U JPH0630525Y2 (en) | 1987-06-19 | 1987-06-19 | Four-wheel drive work vehicle |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS63202524U true JPS63202524U (en) | 1988-12-27 |
JPH0630525Y2 JPH0630525Y2 (en) | 1994-08-17 |
Family
ID=30958503
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP1987094735U Expired - Lifetime JPH0630525Y2 (en) | 1987-06-19 | 1987-06-19 | Four-wheel drive work vehicle |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH0630525Y2 (en) |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS598864U (en) * | 1982-07-09 | 1984-01-20 | 日産自動車株式会社 | Vehicle power steering device |
JPS59176121A (en) * | 1983-03-24 | 1984-10-05 | Kubota Ltd | Front wheel drive control unit for 4-wheel-drive car |
-
1987
- 1987-06-19 JP JP1987094735U patent/JPH0630525Y2/en not_active Expired - Lifetime
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS598864U (en) * | 1982-07-09 | 1984-01-20 | 日産自動車株式会社 | Vehicle power steering device |
JPS59176121A (en) * | 1983-03-24 | 1984-10-05 | Kubota Ltd | Front wheel drive control unit for 4-wheel-drive car |
Also Published As
Publication number | Publication date |
---|---|
JPH0630525Y2 (en) | 1994-08-17 |
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