JPS6416429U - - Google Patents
Info
- Publication number
- JPS6416429U JPS6416429U JP11251887U JP11251887U JPS6416429U JP S6416429 U JPS6416429 U JP S6416429U JP 11251887 U JP11251887 U JP 11251887U JP 11251887 U JP11251887 U JP 11251887U JP S6416429 U JPS6416429 U JP S6416429U
- Authority
- JP
- Japan
- Prior art keywords
- steering angle
- drive
- front wheels
- transmission
- 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
- 238000001514 detection method Methods 0.000 claims description 4
- 238000010586 diagram Methods 0.000 description 1
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図は前輪の操向系の平面及び前輪変
速装置との連係状態を示す図、第２図は農用トラ
クタの全体側面図である。
１……前輪、６……前輪変速装置、９……油圧
シリンダ、９ａ，９ｂ……ピストンロツド、１０
，１１……架橋部材、１４……ナツクルアーム、
１８……操向角度検出機構。
The drawings show an embodiment of the four-wheel drive type work vehicle according to the present invention, FIG. 1 is a plan view of the front wheel steering system and the state of connection with the front wheel transmission, and FIG. 2 is a general side view of the agricultural tractor. It is a diagram. 1...Front wheel, 6...Front wheel transmission, 9...Hydraulic cylinder, 9a, 9b...Piston rod, 10
, 11...Bridging member, 14...Natsukuru arm,
18... Steering angle detection mechanism.
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６を備えると
共に、パワーステアリング用の複動型の油圧シリ
ンダ９から左右にピストンロツド９ａ，９ｂを突
出延出し、前記両ピストンロツド９ａ，９ｂの各
々を左右前輪１のナツクルアーム１４に連係させ
、前記複動型の油圧シリンダ９左右から突出した
両ピストンロツド９ａ，９ｂ部位に亘つてブリツ
ジ状の架橋部材１０，１１を架設し、且つ、機械
的に前輪１の操向角度を検出する操向角度検出機
構１８を前記架橋部材１１に設けて、前輪１の設
定角度以上の操向操作により前輪変速装置６が増
速駆動側に切換操作されるように、前記操向角度
検出機構１８と前輪変速装置６とを機械的に連係
し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;
It is equipped with a front wheel transmission device 6 that switches to an increased speed drive state in which transmission is performed at a drive speed higher than the rear wheel drive speed, and piston rods 9a and 9b are protruded left and right from a double-acting hydraulic cylinder 9 for power steering. Each of the piston rods 9a, 9b is linked to the knuckle arms 14 of the left and right front wheels 1, and bridge-shaped bridging members 10, 11 are constructed across the portions of the piston rods 9a, 9b protruding from the left and right sides of the double-acting hydraulic cylinder 9. , and a steering angle detection mechanism 18 for mechanically detecting the steering angle of the front wheels 1 is provided on the bridging member 11, so that when the front wheels 1 are steered by a predetermined angle or more, the front wheel transmission 6 shifts to the speed increasing drive side. A four-wheel drive type work vehicle in which the steering angle detection mechanism 18 and the front wheel transmission 6 are mechanically linked so that the steering angle detection mechanism 18 and the front wheel transmission 6 are switched.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987112518U JPH0627462Y2 (en) | 1987-07-21 | 1987-07-21 | Four-wheel drive work vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987112518U JPH0627462Y2 (en) | 1987-07-21 | 1987-07-21 | Four-wheel drive work vehicle |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6416429U true JPS6416429U (en) | 1989-01-26 |
| JPH0627462Y2 JPH0627462Y2 (en) | 1994-07-27 |
Family
ID=31351527
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1987112518U Expired - Lifetime JPH0627462Y2 (en) | 1987-07-21 | 1987-07-21 | Four-wheel drive work vehicle |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0627462Y2 (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6067270A (en) * | 1983-09-21 | 1985-04-17 | Mazda Motor Corp | Four-wheel steering device of car |
| JPS6255226A (en) * | 1985-09-03 | 1987-03-10 | Kubota Ltd | Travelling device for agricultural tractor |
-
1987
- 1987-07-21 JP JP1987112518U patent/JPH0627462Y2/en not_active Expired - Lifetime
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6067270A (en) * | 1983-09-21 | 1985-04-17 | Mazda Motor Corp | Four-wheel steering device of car |
| JPS6255226A (en) * | 1985-09-03 | 1987-03-10 | Kubota Ltd | Travelling device for agricultural tractor |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0627462Y2 (en) | 1994-07-27 |