JPH0441787Y2 - - Google Patents
Info
- Publication number
- JPH0441787Y2 JPH0441787Y2 JP18395384U JP18395384U JPH0441787Y2 JP H0441787 Y2 JPH0441787 Y2 JP H0441787Y2 JP 18395384 U JP18395384 U JP 18395384U JP 18395384 U JP18395384 U JP 18395384U JP H0441787 Y2 JPH0441787 Y2 JP H0441787Y2
- Authority
- JP
- Japan
- Prior art keywords
- self
- working
- propelled
- rear wheels
- machine
- 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
- 230000000694 effects Effects 0.000 description 3
- 241000209094 Oryza Species 0.000 description 2
- 235000007164 Oryza sativa Nutrition 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 238000010899 nucleation Methods 0.000 description 2
- 235000009566 rice Nutrition 0.000 description 2
- 238000005096 rolling process Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
Landscapes
- Transplanting Machines (AREA)
Description
【考案の詳細な説明】
〔産業上の利用分野〕
本考案は、左右一対の前車輪を対自走機体昇降
不能に取付けると共に、左右一対の後車輪を一体
的にかつ反対方向に対自走機体昇降する状態で取
付け、前記自走機体の後部に作業装置を駆動昇降
自在に連設した作業機に関する。[Detailed description of the invention] [Field of industrial application] The present invention is designed to attach a pair of left and right front wheels so that they cannot be raised or lowered by a self-propelled aircraft, and also attach a pair of left and right rear wheels integrally and in opposite directions to a self-propelled aircraft. The present invention relates to a working machine in which the machine body is attached in a state where the machine body can be raised and lowered, and a working device is connected to the rear part of the self-propelled machine body so that the machine body can be driven up and down.
この種の作業機では、前記左右一対の後車輪を
自走機体に対して常時昇降自在に構成していた
（例えば、実開昭53−132819号公報など）。
In this type of working machine, the pair of left and right rear wheels are configured to be able to move up and down at any time with respect to the self-propelled body (for example, as disclosed in Japanese Utility Model Publication No. 53-132819).
このような従来機による走行状態を見てみる
と、作業装置を作業姿勢に下降させた対地作業時
には、圃場面の凹凸にかかわらず、左右後車輪の
シーソー昇降により全ての車輪が接地するから、
機体を所望方向に確実に実行させることができる
利点を有する。その反面、作業装置を非作業姿勢
に対地上昇させた路上走行時や畦際走行時等にお
いては、機体重心位置が高くなるため、機体左右
の重量差や機体振動等によつて機体が左右に傾動
し易くなる問題があつた。
Looking at the running conditions of conventional machines, when working on the ground with the work equipment lowered into the working position, all wheels touch the ground due to the seesaw movement of the left and right rear wheels, regardless of the unevenness of the field.
This has the advantage of being able to reliably move the aircraft in a desired direction. On the other hand, when driving on roads or along ridges with the work equipment raised above the ground in a non-working position, the center of gravity of the machine becomes higher, and the machine moves left and right due to the weight difference between the left and right sides of the machine, the machine vibration, etc. I had a problem with it being prone to tilting.
本考案の目的は、路上走行時や畦際走行時に発
生する前述の問題点を操作の簡便化を図り乍ら改
善することができるようにする点にある。 An object of the present invention is to make it possible to improve the above-mentioned problems that occur when driving on a road or along a ridge while simplifying the operation.
本考案による作業機の特徴構成は、前記作業装
置の非作業姿勢への対地上昇に連動して、後車輪
を対自走機体昇降の不能な状態にロツクし、か
つ、前記作業装置の作業姿勢への下降に連動し
て、後車輪の対自走機体昇降を許容するロツク解
除状態に自動的に切替えられるロツク機構を設け
た点にあり、その作用・効果は次の通りである。
A characteristic configuration of the working machine according to the present invention is such that the rear wheels are locked in a state in which lifting and lowering of the self-propelled machine is impossible in conjunction with the raising of the working equipment to the non-working position, and the working position of the working equipment is A locking mechanism is provided that automatically switches to an unlocked state that allows the rear wheels to move up and down relative to the self-propelled aircraft in conjunction with the descent of the aircraft.The functions and effects of this mechanism are as follows.
作業装置を作業姿勢に下降させた対地作業時に
は、この作業装置の下降に連動してロツク機構が
後車輪の対自走機体昇降を許容するロツク解除状
態に切替えられているから、圃場面の凹凸にかか
わらず、左右後車輪のシーソー昇降によつて全て
の車輪が接地することとなり、機体を所望方向に
確実に走行させることができる。それでいて、作
業装置を非作業姿勢に対地上昇させた路上走行時
や畦際旋回時においては、この作業装置の上昇に
連動して後車輪の対自走機体昇降を不能な状態に
ロツクするから、機体振動や左右の重量差等に起
因する機体の左右傾動を抑制することができる。
When working on the ground with the working equipment lowered to the working position, the locking mechanism is switched to the unlocked state that allows the rear wheels to move up and down relative to the self-propelled aircraft in conjunction with the lowering of the working equipment, so it is possible to avoid irregularities in the field. Regardless, the seesaw movement of the left and right rear wheels brings all wheels into contact with the ground, allowing the aircraft to travel reliably in the desired direction. However, when driving on the road with the working equipment raised above the ground in a non-working position or when turning on a ridge, the rear wheels are locked in a state where it is impossible to raise or lower the self-propelled aircraft in conjunction with the lifting of the working equipment. It is possible to suppress the horizontal tilting of the aircraft body caused by vibrations of the aircraft body, weight difference between the left and right sides, and the like.
従つて、対地作業時には全輪接地による操向の
安定化を図り乍らも、路上走行時や畦際旋回時に
おいては機体の左右振らつきを抑制することがで
きる。しかも、このためロツク機構の操作も、こ
の時の必須の動作である作業装置の昇降を有効利
用して確実、簡便に行ない得るに至つた。
Therefore, while stabilizing steering by keeping all wheels on the ground during ground work, it is possible to suppress left-right sway of the aircraft when traveling on the road or turning on a ridge. Furthermore, the lock mechanism can be operated reliably and easily by effectively utilizing the lifting and lowering of the working device, which is an essential operation at this time.
以下、本考案の実施例を図面に基づいて説明す
る。
Hereinafter, embodiments of the present invention will be described based on the drawings.
Ａは、左右一対の操向型前車輪１ａ，１ｂ及び
非操向型後車輪２ａ，２ｂの夫々を駆動可能に有
し、かつ、原動部３及び運転座席４等を備えた自
走機体である。この自走機体Ａの後部に、油圧シ
リンダ５によつて上下に駆動揺動されるリンク機
構６を取付け、このリンク機構６の後部に、作業
装置の一例である苗植付装置Ｂを前後軸芯周りで
ローリング自在に連設すると共に、自走機体Ａか
ら回転軸７を介して苗植付装置Ｂに伝動するよう
に構成し、もつて、自走機体Ａの左右傾斜にかか
わらず苗植付装置Ｂの自重ローリングにより左右
の植付け深さがほぼ一定に維持される状態で作業
可能な乗用型田植機（作業機の一例である）を構
成している。 A is a self-propelled aircraft that has a pair of left and right steerable front wheels 1a, 1b and non-steerable rear wheels 2a, 2b that can be driven, and is equipped with a driving unit 3, a driver seat 4, etc. be. A link mechanism 6 that is driven and oscillated up and down by a hydraulic cylinder 5 is attached to the rear of this self-propelled body A, and a seedling planting device B, which is an example of a working device, is attached to the rear of this link mechanism 6 on a longitudinal axis. They are arranged so that they can roll freely around the core, and are configured so that power is transmitted from the self-propelled body A to the seedling planting device B via the rotating shaft 7. This is a riding-type rice transplanter (an example of a working machine) that can operate with the left and right planting depths maintained substantially constant due to the weight rolling of the attached device B.
前記一対の前車輪１ａ，１ｂは夫々、伝動ケー
ス８を介して、自走機体Ａの前部を形成するミツ
シヨンケース９に昇降不能な状態で取付けられて
いる。 The pair of front wheels 1a and 1b are each attached via a transmission case 8 to a transmission case 9 forming the front part of the self-propelled body A in such a manner that they cannot be raised or lowered.
１０は、前記一対の後車輪２ａ，２ｂを軸支す
る後車軸ケースであり、自走機体Ａのメインフレ
ーム１１に固着された連結金具１２に対して前後
方向姿勢の連結ピン１３軸芯周りで上下揺動自在
に枢支連結されている。この後車軸ケース１０の
揺動により、左右の後車輪２ａ，２ｂをメインフ
レーム１１に対して一体的にかつ反対方向にロー
リング昇降自在に構成している。 Reference numeral 10 denotes a rear axle case that pivotally supports the pair of rear wheels 2a and 2b, and the rear axle case 10 pivots around the axis of the connecting pin 13 in the longitudinal direction with respect to the connecting fitting 12 fixed to the main frame 11 of the self-propelled aircraft A. It is pivotally connected so that it can swing up and down. By this rocking of the rear axle case 10, the left and right rear wheels 2a, 2b are configured to be integral with the main frame 11 and can be rolled up and down in opposite directions.
また、前記後車軸ケース１０の左右両側部から
前方に夫々受け部材１０ａ，１０ａを突設すると
ともに、前記メインフレーム１１には、受け部材
１０ａ，１０ａに形成された長孔１０ｂ，１０ｂ
を挿通する軸１４，１４を取付け、これら軸１
４，１４の外周部で、かつ、前記メインフレーム
１１と受け部材１０ａ，１０ａとの間及び受け部
材１０ａ，１０ａと前記軸１４，１４の下端部に
ローリング量調節用ナツト１５，１５を介して保
持された座金１６，１６との間には夫々、一対の
後車輪２ａ，２ｂを夫々の対自走機体高さが同一
又はほぼ同一になる状態に上下から付勢するスプ
リング１７ａ，１７ｂ及び１７ａ，１７ｂを設け
ている。 In addition, receiving members 10a, 10a are provided protruding forward from both left and right sides of the rear axle case 10, respectively, and elongated holes 10b, 10b formed in the receiving members 10a, 10a are provided in the main frame 11.
Attach the shafts 14, 14 through which the shafts 1
4, 14, and between the main frame 11 and the receiving members 10a, 10a, and between the receiving members 10a, 10a and the lower ends of the shafts 14, 14, through rolling amount adjusting nuts 15, 15. Between the held washers 16 and 16 are springs 17a, 17b and 17a that bias the pair of rear wheels 2a and 2b from above and below so that their respective heights relative to the self-propelled aircraft are the same or almost the same. , 17b are provided.
１８は、苗植付装置Ｂの非植付作業姿勢への対
地上昇に連動して、後車輪２ａ，２ｂを対自走機
体昇降の不能な状態にロツクし、かつ、前記苗植
付装置Ｂの植付作業姿勢への下降に連動して、後
車輪２ａ，２ｂの対自走機体昇降を許容するロツ
ク解除状態に自動的に切替えられるロツク機構で
ある。このロツク機構１８は、前記メインフレー
ム１１に、このメインフレーム１１と後車軸ケー
ス１０との間に突入して、後車輪２ａ，２ｂを
夫々の対自走機体レベルが同一又はほぼ同一にな
る状態で該後車軸ケース１０をロツクする状態と
機体前方に退避させたロツク解除状態とに揺動切
替自在なロツク部材１８ａ、及び、このロツク部
材１８ａをロツク解除方向に付勢するスプリング
１８ｂを設けるとともに、前記リンク機構６の、
昇降に伴つてメインフレーム１１との間の距離が
変化する後部リンク６ａと前記ロツク部材１８ａ
とをワイヤー１８ｃを介して連係し、もつて、苗
植付装置Ｂの駆動上昇に伴うワイヤー１８ｃの引
張り作用により、前記ロツク部材１８ａをスプリ
ング１８ｂの弾性付勢力に抗してロツク姿勢に切
替えるべく構成している。 Numeral 18 locks the rear wheels 2a and 2b in a state where the self-propelled aircraft cannot be raised or lowered in conjunction with the raising of the seedling planting device B to the non-planting working posture, and the seedling planting device B This is a locking mechanism that is automatically switched to an unlocked state that allows the rear wheels 2a and 2b to move up and down relative to the self-propelled aircraft in conjunction with the descent to the planting work position. This locking mechanism 18 enters into the main frame 11 between the main frame 11 and the rear axle case 10, and sets the rear wheels 2a, 2b at the same or almost the same level relative to the self-propelled aircraft. A locking member 18a is provided that can swing freely between a state in which the rear axle case 10 is locked and an unlocked state in which the rear axle case 10 is retracted toward the front of the machine, and a spring 18b that biases this locking member 18a in the unlocking direction. , of the link mechanism 6,
The rear link 6a and the lock member 18a whose distance from the main frame 11 changes as the main frame 11 moves up and down.
are connected to each other via a wire 18c, and then the locking member 18a is switched to the locked position against the elastic biasing force of the spring 18b by the tensile action of the wire 18c as the seedling planting device B is driven upward. It consists of
(イ) 第５図で示すように、前記後車軸ケース１０
の姿勢にかかわらず該後車軸ケース１０を所定
姿勢でロツクすることができるように、前記ロ
ツク部材１８ａのロツク作用部分を先細りのテ
ーパー状に構成する。
(a) As shown in FIG. 5, the rear axle case 10
The locking portion of the locking member 18a is formed into a tapered shape so that the rear axle case 10 can be locked in a predetermined posture regardless of the posture of the rear axle case.
(ロ) 本考案は苗植付装置Ｂに代えて播種装置を取
付けた水田用直播機にも適用できる。(b) The present invention can also be applied to a direct seeding machine for paddy fields equipped with a seeding device instead of the seedling planting device B.
図面は本考案に係る作業機の実施例を示し、第
１図は縦断側面図、第２図は横断平面図、第３図
は縦断背面図、第４図は乗用田植機の全体側面
図、第５図は別の実施例を示す斜視図である。
１ａ，１ｂ……前車輪、２ａ，２ｂ……後車
輪、８……作業装置、１８……ロツク機構。
The drawings show an embodiment of the working machine according to the present invention, in which Fig. 1 is a longitudinal side view, Fig. 2 is a transverse plan view, Fig. 3 is a longitudinal rear view, and Fig. 4 is an overall side view of the riding rice transplanter. FIG. 5 is a perspective view showing another embodiment. 1a, 1b...Front wheels, 2a, 2b...Rear wheels, 8...Working device, 18...Lock mechanism.
Claims (1)
降不能に取付けると共に、左右一対の後車輪２
ａ，２ｂを一体的にかつ反対方向に対自走機体
昇降する状態で取付け、前記自走機体の後部に
作業装置８を駆動昇降自在に連設した作業機で
あつて、前記作業装置Ｂの非作業姿勢への対地
上昇に連動して、後車輪２ａ，２ｂを対自走機
体昇降の不能な状態にロツクし、かつ、前記作
業装置Ｂの作業姿勢への下降に連動して、後車
輪２ａ，２ｂの対自走機体昇降を許容するロツ
ク解除状態に自動的に切替えられるロツク機構
１８を設けてある作業機。 前記ロツク機構１８は一対の後車輪２ａ，２
ｂを夫々の対自走機体レベルが同一又はほぼ同
一になる状態でロツクするものである実用新案
登録請求の範囲第項に記載の作業機。[Scope of Claim for Utility Model Registration] A pair of left and right front wheels 1a and 1b are installed so that they cannot be raised or lowered by a self-propelled aircraft, and a pair of left and right rear wheels 2
A and 2b are integrally attached to the self-propelled machine body in a state that they can be raised and lowered in opposite directions, and a working device 8 is connected to the rear of the self-propelled machine body so that it can be driven up and down, and the working device B is In conjunction with the rise above the ground to the non-working position, the rear wheels 2a and 2b are locked in a state where they cannot be raised or lowered relative to the self-propelled aircraft, and in conjunction with the descent of the work device B to the working position, the rear wheels 2a and 2b are locked. A work machine equipped with a lock mechanism 18 that is automatically switched to an unlocked state that allows the self-propelled machines 2a and 2b to move up and down. The locking mechanism 18 is connected to the pair of rear wheels 2a, 2.
The working machine according to claim 1, which is a working machine that locks the working machine b in a state where the respective levels relative to the self-propelled machine are the same or almost the same.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18395384U JPH0441787Y2 (en) | 1984-12-04 | 1984-12-04 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18395384U JPH0441787Y2 (en) | 1984-12-04 | 1984-12-04 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6198604U JPS6198604U (en) | 1986-06-24 |
| JPH0441787Y2 true JPH0441787Y2 (en) | 1992-10-01 |
Family
ID=30741439
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP18395384U Expired JPH0441787Y2 (en) | 1984-12-04 | 1984-12-04 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0441787Y2 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4488428B2 (en) * | 2005-09-27 | 2010-06-23 | 株式会社クボタ | Riding paddy field machine |
| JP4492587B2 (en) * | 2006-05-30 | 2010-06-30 | 井関農機株式会社 | Seedling transplanter |
-
1984
- 1984-12-04 JP JP18395384U patent/JPH0441787Y2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6198604U (en) | 1986-06-24 |
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