JPS631647Y2 - - Google Patents
Info
- Publication number
- JPS631647Y2 JPS631647Y2 JP13621882U JP13621882U JPS631647Y2 JP S631647 Y2 JPS631647 Y2 JP S631647Y2 JP 13621882 U JP13621882 U JP 13621882U JP 13621882 U JP13621882 U JP 13621882U JP S631647 Y2 JPS631647 Y2 JP S631647Y2
- Authority
- JP
- Japan
- Prior art keywords
- arms
- steering
- knuckle
- pitman
- knuckle arms
- 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.)
- Expired
Links
- 241000209094 Oryza Species 0.000 description 2
- 235000007164 Oryza sativa Nutrition 0.000 description 2
- 230000003014 reinforcing effect Effects 0.000 description 2
- 235000009566 rice Nutrition 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 229920003002 synthetic resin Polymers 0.000 description 1
- 239000000057 synthetic resin Substances 0.000 description 1
Landscapes
- Steering-Linkage Mechanisms And Four-Wheel Steering (AREA)
Description
【考案の詳細な説明】
本考案は、ハンドルに連動のピツトマンアーム
と左右操向車輪とを連動連結した乗用型作業機の
操向構造に関する。[Detailed Description of the Invention] The present invention relates to a steering structure for a riding type working machine in which a pitman arm interlocked with a handle and left and right steering wheels are interlocked and connected.
上記構造としては、従来一般に、第４図に示す
ように、左右操向車輪３１，３１夫々に、機体前
後いずれかの同じ側に突出させた状態で一体連結
されたナツクルアーム３２をタイロツド３３を介
して連結し、両ナツクルアーム３２，３２の一方
とハンドル３４に連動のピツトマンアーム３５と
をドラツグリンク３６を介して連結するとか、あ
るいは、第５図に示すように（実開昭53−82935
号公報参照）、ハンドル３４にベベルギア機構３
７，３７を介して前後方向で互いに異なる方向に
揺動自在にピツトマンアーム３５，３５を連動連
結し、他方、左右操向車輪３１，３１夫々に機体
内方側に突出させる状態でナツクルアーム３２を
一体連結し、両ピツトマンアーム３５，３５夫々
と両ナツクルアーム３２，３２夫々をドラツグリ
ンク３６を介して連結したものがあつた。ところ
が、いずれにおいても、操向操作に際して、両ナ
ツクルアーム３２，３２の一方を押す時に他方を
引つ張り操作し、左右ナツクルアーム３２，３２
に対するタイロツド３３あるいはドラツグリンク
３６，３６夫々の枢支連結部でのガタ量L1，L1
が互いに加算される状態となり、左右操向車輪３
１，３１の一方と他方との間での操向角度の誤差
が大となる欠点があつた。 Conventionally, as shown in FIG. 4, the above-mentioned structure includes a knuckle arm 32 that is integrally connected to the left and right steering wheels 31, 31, respectively, and protrudes toward the same side, either the front or rear of the aircraft, through a tie rod 33. Alternatively, as shown in FIG.
(Refer to the publication), the bevel gear mechanism 3 is attached to the handle 34.
The pitman arms 35, 35 are interlocked and connected through the pins 7, 37 so as to be swingable in different directions in the front and rear directions, and on the other hand, the knuckle arms 32 are integrated with the left and right steering wheels 31, 31 in such a manner that they protrude inward from the body, respectively. There was one in which both pitman arms 35, 35 and both knuckle arms 32, 32 were connected via a drag link 36. However, in either case, when pushing one of the two knuckle arms 32, 32, the other is pulled and operated, and the left and right knuckle arms 32, 32
The amount of backlash L 1 , L 1 at the pivot joint of tie rod 33 or drag links 36, 36, respectively
are added to each other, and the left and right steering wheels 3
There was a drawback that the error in the steering angle between one and the other of Nos. 1 and 31 was large.
本考案は、上記の点に鑑み、簡単な改良によ
り、ナツクルアームに対する枢支連結部でのガタ
に起因する左右操向車輪の相対角度差を小さくで
きるようにすることを目的とする。 In view of the above-mentioned points, an object of the present invention is to make it possible to reduce the relative angle difference between the left and right steering wheels due to play at the pivot connection portion to the knuckle arm through simple improvements.
本考案による乗用型作業機の操向構造は、上記
目的の達成のために、左右操向車輪に、互いに機
体左右方向同方向に突出させてナツクルアームを
一体連結し、ハンドルに連動させて、互いに同方
向に揺動される状態で一対のピツトマンアームを
設けると共に、前記両ピツトマンアーム夫々と前
記両ナツクルアーム夫々とを各別にドラツグリン
クを介して連動連結してある事を特徴とする。 In order to achieve the above object, the steering structure of the riding-type work machine according to the present invention is such that the left and right steering wheels are integrally connected with knuckle arms that project in the same direction in the left-right direction of the machine, and are interlocked with the handle. The present invention is characterized in that a pair of pitman arms are provided to be swung in the same direction, and each of the two pitman arms and each of the two knuckle arms are interlocked and connected via drag links.
つまり、ナツクルアームの突出方向に向かわせ
ると共に一対のピツトマンアームを同方向に揺動
する状態に設けるだけでありながら、その操向方
向のいかんにかかわらず、両ドラツグリンクによ
つて両ナツクルアームのいずれをも押し操作する
か、あるいは、いずれをも引き操作して操向を行
うのである。 In other words, although the Knuckle Arms are directed in the protruding direction and the pair of Pitman Arms are provided to swing in the same direction, both drag links do not push either of the Knuckle Arms regardless of the direction in which they are steered. Steering is accomplished by either operating it or pulling it.
従つて、ドラツグリンクとナツクルアームとの
枢支連結部において、そこでのガタをほぼ同時的
に吸収した状態で両ドラツグリンク夫々から両ナ
ツクルアーム夫々に操向操作力を働かせることが
でき、ガタに起因しての左右操向車輪間の操向相
対角度差を小さなものにあるいは無くすことがで
き、全体として簡単な改良でもつて操向を良好に
行えるようになつた。 Therefore, at the pivot joint between the drag link and the knuckle arm, the steering force can be exerted from both drag links to each of the knuckle arms, while the play there is absorbed almost simultaneously, and the steering operation force caused by the play can be applied to each of the knuckle arms. The relative steering angle difference between the left and right steering wheels can be reduced or eliminated, and overall it has become possible to perform good steering with simple improvements.
以下、本考案の実施例を例示図に基いて詳述す
る。 Hereinafter, embodiments of the present invention will be described in detail based on illustrative drawings.
前後車輪１，２を軸架した走行機体の前部にエ
ンジン３を搭載すると共に中央部にハンドル４と
運転座席５を設け、かつ、後部に苗植付装置６を
駆動昇降自在に設け、乗用型田植機を構成してあ
る。 An engine 3 is mounted on the front part of a traveling body with front and rear wheels 1 and 2 mounted on axles, a handle 4 and a driver's seat 5 are provided in the center, and a seedling planting device 6 is provided in the rear part so as to be movable up and down. It consists of a type rice transplanter.
左右一対の前車輪１，１夫々を前車軸ケース
７，７に軸架すると共に、両前車軸ケース７，７
夫々を、前輪用デフ機構Ａを内装する前車軸アー
ム８の左右両端夫々に縦軸芯周りで回動自在に取
付け、操向車輪に構成してある。 A pair of left and right front wheels 1, 1 are mounted on front axle cases 7, 7, respectively, and both front axle cases 7, 7 are mounted on front axle cases 7, 7.
Each of these is rotatably attached to the left and right ends of a front axle arm 8 in which a front wheel differential mechanism A is installed, respectively, about a vertical axis, thereby forming a steering wheel.
前車軸ケース７，７夫々に、いずれにおいても
車体右方向に突出する状態で、かつ、旋回半径の
異なりに対しての内外輪の操向角度差を生じさせ
るように、相対位相を所定角度異らせた状態で、
ナツクルアーム９，９を一体連結してある。ハン
ドル４にウオームギア機構１０を介して回動軸１
１を連動連結し、その回動軸１１の両端夫々にピ
ツトマンアーム１２を一体連結すると共に両ピツ
トマンアーム１２，１２夫々と前記両ナツクルア
ーム９，９の遊端夫々とをドラツグリンク１３を
介して連結してある。 The relative phase of each of the front axle cases 7 and 7 is changed by a predetermined angle so that both cases protrude toward the right side of the vehicle body, and a difference in steering angle between the inner and outer wheels is generated in response to different turning radii. with the
Knuckle arms 9, 9 are integrally connected. A rotation shaft 1 is attached to the handle 4 via a worm gear mechanism 10.
1 are interlocked and connected, and a pitman arm 12 is integrally connected to each end of the rotating shaft 11, and both the pitman arms 12, 12 and the free ends of the two knuckle arms 9, 9 are connected via a drag link 13. .
前記苗植付装置６において、植付ミツシヨンケ
ーン１４に機体左右方向に往復移動自在に螺軸１
５を設け、その螺軸１５の両端夫々と、苗のせ台
１６の背面に取付けたアングル状のブラケツト１
７，１７夫々とを合成樹脂製の横送りサポート１
８を介して連結してある。横送りサポート１８，
１８夫々に両端を座金に兼用した鉄製の補強板１
９を共締めにより取付けてあり、例えば、５条、
６条８条等、苗のせ台１６の大きさが異なる場合
でも、補強板１９として強度の異なるものに換え
ることにより上記横送りサポート１８を兼用でき
るようにしてある。 In the seedling planting device 6, a helical shaft 1 is attached to the planting transmission cane 14 so as to be able to reciprocate in the left and right directions of the machine.
5, and angle-shaped brackets 1 attached to both ends of the screw shaft 15 and the back of the seedling stand 16.
Transverse feed support 1 made of synthetic resin for each of 7 and 17
They are connected via 8. Cross feed support 18,
18 Steel reinforcing plate 1 with both ends serving as washers
9 are attached by co-tightening, for example, 5 pieces,
Even when the size of the seedling stand 16 is different, such as 6 rows or 8 rows, by replacing the reinforcing plate 19 with one having a different strength, the above-mentioned horizontal feeding support 18 can be used.
前車軸ケース７，７夫々にナツクルアーム９を
一体連結するに、いずれをも車体左方向に突出す
るように設けても良い。 When the knuckle arm 9 is integrally connected to each of the front axle cases 7, 7, both may be provided so as to protrude toward the left side of the vehicle body.
又、本考案は、農用トラクタや運搬車等、各種
の乗用型作業機に適用できる。 Further, the present invention can be applied to various riding-type working machines such as agricultural tractors and transport vehicles.
図面は本考案に係る乗用型作業機の操向構造の
実施を例示し、第１図は乗用型田植機の全体側面
図、第２図は要部の一部展開平面図、第３図は苗
植付装置の要部の一部切欠平面図、第４図は従来
例を示す平面図、第５図は従来例を示す斜視図で
ある。
１……操向車輪、４……ハンドル、９……ナツ
クルアーム、１２……ピツトマンアーム、１３…
…ドラツグリンク。
The drawings illustrate the implementation of the steering structure of the riding-type working machine according to the present invention, and FIG. 1 is an overall side view of the riding-type rice transplanter, FIG. 2 is a partially exploded plan view of the main parts, and FIG. FIG. 4 is a partially cutaway plan view of essential parts of the seedling planting device, FIG. 4 is a plan view showing a conventional example, and FIG. 5 is a perspective view showing the conventional example. 1...Steering wheel, 4...Handle, 9...Natsukuru arm, 12...Pittman arm, 13...
...Dragon Link.
Claims (1)
方向に突出させてナツクルアーム９を一体連結
し、ハンドル４に連動させて、互いに同方向に揺
動される状態で一対のピツトマンアーム１２，１
２を設けると共に、前記両ピツトマンアーム１
２，１２夫々と前記両ナツクルアーム９，９夫々
とを各別にドラツグリンク１３を介して連動連結
してある事を特徴とする乗用型作業機の操向構
造。 A pair of pitman arms 12, 1 are connected to the left and right steering wheels 1, 1 by integrally connecting knuckle arms 9 so as to protrude in the same direction in the left-right direction of the aircraft, and are linked to the handlebar 4 so as to swing in the same direction.
2, and both pitman arms 1
2 and 12, respectively, and the two knuckle arms 9, 9, respectively, are interlocked and connected via drag links 13, respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13621882U JPS5939264U (en) | 1982-09-07 | 1982-09-07 | Steering structure of riding type work equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13621882U JPS5939264U (en) | 1982-09-07 | 1982-09-07 | Steering structure of riding type work equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5939264U JPS5939264U (en) | 1984-03-13 |
| JPS631647Y2 true JPS631647Y2 (en) | 1988-01-16 |
Family
ID=30306350
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP13621882U Granted JPS5939264U (en) | 1982-09-07 | 1982-09-07 | Steering structure of riding type work equipment |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5939264U (en) |
-
1982
- 1982-09-07 JP JP13621882U patent/JPS5939264U/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5939264U (en) | 1984-03-13 |
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