JPH0785686B2 - Riding rice transplanter - Google Patents

Riding rice transplanter

Info

Publication number
JPH0785686B2
JPH0785686B2 JP4099555A JP9955592A JPH0785686B2 JP H0785686 B2 JPH0785686 B2 JP H0785686B2 JP 4099555 A JP4099555 A JP 4099555A JP 9955592 A JP9955592 A JP 9955592A JP H0785686 B2 JPH0785686 B2 JP H0785686B2
Authority
JP
Japan
Prior art keywords
seedling planting
seedling
floats
riding
seedlings
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 - Lifetime
Application number
JP4099555A
Other languages
Japanese (ja)
Other versions
JPH05111318A (en
Inventor
木下  栄一郎
利二 島本
哲夫 瀬戸川
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Iseki and Co Ltd
Original Assignee
Iseki and Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Iseki and Co Ltd filed Critical Iseki and Co Ltd
Priority to JP4099555A priority Critical patent/JPH0785686B2/en
Publication of JPH05111318A publication Critical patent/JPH05111318A/en
Publication of JPH0785686B2 publication Critical patent/JPH0785686B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Description

【発明の詳細な説明】Detailed Description of the Invention

【0001】[0001]

【産業上の利用分野】この発明は、乗用型田植機に関す
るものである。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a riding type rice transplanter.

【0002】[0002]

【従来技術とその課題】この種の従来技術としては、乗
用型走行車体の後部にリンク機構にて上下動自在に装着
した苗植装置に設けられた植付深さ調節レバーにて、操
縦者が植付ける苗の種類や成長具合等の条件にて、苗植
装置のフロート後部支軸を上下動調節して苗植付具によ
る苗の植付深さを調節するものがある。
2. Description of the Related Art As a conventional technique of this kind, an operator controls a planting depth adjusting lever provided on a seedling planting device mounted on a rear portion of a riding type vehicle body so as to be vertically movable by a link mechanism. Depending on the type of seedlings to be planted and the condition of growth, there is one in which the float rear support shaft of the seedling planting device is vertically moved to adjust the seedling planting depth of the seedling planting device.

【0003】併し乍ら、植付ける苗の条件にて植付深さ
を調節するのは、植付作業時に一度調節しておくと後は
調節の必要がないが、圃場の条件や作業の条件に応じて
調節するのは作業中に何度か行なわなければならず非常
に煩わしく作業効率の悪いものであった。また、その調
節自体を忘れて適切な苗の植付けが行えないこともあ
る。
In addition, it is necessary to adjust the planting depth according to the conditions of seedlings to be planted, but once adjusted during planting work, it is not necessary to adjust the planting depth afterwards. However, depending on the conditions of the field and the conditions of work. It has to be done several times during the work, and it is very cumbersome and the work efficiency is poor. In addition, it may not be possible to properly plant seedlings by forgetting the adjustment itself.

【0004】[0004]

【課題を解決するための手段】この発明は、上記の課題
を解決するために、前部が上下動すべく後部が支軸48
にて枢支され圃場面に接地するフロート13・14と圃
場に苗を植付ける苗植付具12とを有する苗植装置9を
リンク機構15にて乗用型走行車体1の後部に上下動自
在に装着し、フロート13・14はその後部支軸48が
上下に移動調節されて苗植付具12による苗の植付深さ
が変更できる乗用型田植機において、乗用型走行車体1
に設けた苗植え作業条件を変更する操作レバー32の操
作により前記フロート13・14の後部支軸48を上下
に移動させるモータ30を苗植装置9の機体に設けたこ
とを特徴とする乗用型田植機としたものである。
According to the present invention, in order to solve the above-mentioned problems, the rear portion of the support shaft 48 is to move up and down.
A seedling planting device 9 having floats 13 and 14 that are pivotally supported by the ground and a seedling planting tool 12 that plant seedlings in the field is vertically movable by a link mechanism 15 to the rear part of the riding-type traveling vehicle body 1. The rear support shafts 48 of the floats 13 and 14 are vertically moved to adjust the depth of planting of the seedlings by the seedling planting device 12, so that the floats 13 and 14 are mounted on the
A riding mold characterized in that a motor 30 for moving the rear support shaft 48 of the floats 13 and 14 up and down by operating the operation lever 32 for changing the seedling planting work conditions provided in the plant is provided in the body of the seedling planting device 9. It is a rice transplanter.

【0005】[0005]

【発明の作用効果】この発明は、乗用型走行車体1に設
けた苗植え作業条件を変更する操作レバー32の操作に
より前記フロート13・14の後部支軸48を上下に移
動させるモータ30を苗植装置9の機体に設けたから、
圃場の条件や操縦者の熟練度等の作業条件に応じて、操
作レバー32にて苗植え作業条件を変更すると、それに
伴って自動的にモータ30にてフロート13・14の後
部支軸48を上下に移動させてその条件に適した苗の植
付深さに変更され、従来例の作業効率の悪さや調節自体
を忘れて適切な苗の植付けが行えない事態等の課題を適
切に解消でき、作業効率の良い良好な苗植付け作業が行
なえる。
According to the present invention, the seedling motor 30 for moving the rear support shaft 48 of the floats 13 and 14 up and down by operating the operation lever 32 provided on the riding type traveling vehicle body 1 for changing the seedling planting work condition is provided. Since it was installed in the machine of the planting device 9,
When the operation condition of the seedling planting operation is changed by the operation lever 32 according to the working conditions such as the field conditions and the skill of the operator, the motor 30 automatically causes the rear support shaft 48 of the floats 13 and 14 to move. By moving it up and down and changing the seedling planting depth to suit the conditions, it is possible to properly solve problems such as the situation that the conventional example is inefficient in working efficiency and that the seedlings cannot be planted properly due to forgetting the adjustment itself. Good planting work with good work efficiency can be performed.

【0006】また、その苗の植付深さの変更は、苗植装
置9の機体に設けたモータ30にて行なうものであるか
ら、乗用型走行車体1側から苗植装置9側にリンク機構
等の機械的連繋操作機構が不要となり、その構造が簡潔
となると共に、その苗の植付深さの変更制御も容易に行
なえ、簡単な操作で適切な田植え作業が行なえる乗用型
田植機を得ることができる。
Since the planting depth of the seedlings is changed by the motor 30 provided in the body of the seedling planting device 9, a link mechanism is provided from the riding type traveling vehicle body 1 side to the seedling planting device 9 side. A mechanical connecting operation mechanism such as etc. is not necessary, its structure is simple, change control of the planting depth of the seedlings can be easily performed, and suitable rice planting work can be done with simple operation. Obtainable.

【0007】[0007]

【実施例】つぎに、この発明の一実施例を図面に基づい
て説明する。第1図のように、乗用型走行車体1の後部
にリンク機構15で苗植装置9が装着されて乗用型田植
機となっている。乗用型走行車体1は、歯車箱2の前後
にそれぞれ一対の前輪(図示していない)と後輪4を備
え、これらがエンジンの動力を受けて回転し、水田の耕
盤上を転動して前進するように出来ている。なお、一対
のチエンケース3が歯車箱2の両横から斜後下に伸び、
その下端の外側に前記の後輪4が設けられている。横杆
6の両端がそれぞれのチエンケース3の内側に固定さ
れ、その中央から支柱7が上に伸び、その上端に座席5
が設けられ、この座席5の横に操作パネル8が配置され
ている。
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT An embodiment of the present invention will be described below with reference to the drawings. As shown in FIG. 1, a seedling planting device 9 is attached to the rear portion of the riding type traveling vehicle body 1 by a link mechanism 15 to form a riding type rice transplanter. The riding-type traveling vehicle body 1 includes a pair of front wheels (not shown) and a rear wheel 4 in front of and behind the gear box 2, which are rotated by the power of the engine and roll on the paddy field of the paddy field. It is designed to move forward. In addition, a pair of chain cases 3 extend from both sides of the gear box 2 obliquely downward and downward,
The rear wheel 4 is provided outside the lower end thereof. Both ends of the horizontal rod 6 are fixed to the inside of each chain case 3, a pillar 7 extends upward from the center thereof, and a seat 5 is provided at the upper end thereof.
Is provided, and the operation panel 8 is arranged beside the seat 5.

【0008】苗植装置9は、中央部の植付伝動ケース1
0と、その上に前倒れに設けられて左右に往復する苗載
台11と、先端が苗載台11の下端で旋回して苗載台1
1上の苗を1株分ごとに欠ぎ取って下の泥面に挿し込む
苗植付具12と、植付伝動ケース10の下方に設けられ
て泥面を滑走するフロート13,14で構成されてい
る。そして、植付伝動ケース10の後端は、苗載台11
の下を通って後に延び、この後端部の側方に前記の苗植
付具12が装着されている。
The seedling planting device 9 is a planted transmission case 1 in the central portion.
0, a seedling mounting table 11 provided on the front of the seedling mounting table 11 that reciprocates to the left and right, and the tip of the seedling mounting table 11 rotates at the lower end of the seedling mounting table 11.
It consists of a seedling planting tool 12 that cuts off the seedlings above 1 for each one and inserts them into the mud surface below, and floats 13 and 14 that are provided below the planting transmission case 10 and slide on the mud surface. Has been done. Then, the rear end of the planted transmission case 10 has a seedling stand 11
It extends rearward through the bottom of the plant, and the seedling planting fixture 12 is attached to the side of the rear end portion.

【0009】リンク機構15は、横から見て上下一対の
リンク16a,16b、および、それぞれの後端が回動
自在に取付けられた縦枠17で構成されている。そし
て、リンク16a,16bの先端が支柱7に回動自在に
取付けられ、縦枠17の後端に植付伝動ケース10が取
付けられている。駆動装置18を構成するシリンダ18
aが歯車箱2の後端部から斜後上に伸び、これから出没
するピストンロッド18bの上端がリンク16aの中間
部に接続している。
The link mechanism 15 is composed of a pair of upper and lower links 16a and 16b as viewed from the side, and a vertical frame 17 having rear ends thereof rotatably attached. The tips of the links 16a and 16b are rotatably attached to the column 7, and the planted transmission case 10 is attached to the rear end of the vertical frame 17. Cylinder 18 that constitutes drive device 18
a extends obliquely upward and rearward from the rear end of the gear box 2, and the upper end of the piston rod 18b protruding and retracting from the rear is connected to the intermediate portion of the link 16a.

【0010】第1図および第2図のように、ポンプ20
から吐出するオイルが切換弁21を経てシリンダ18a
内に流れ込むと、ピストンロッド18bが突出してリン
ク機構15の後端を押し下げ、苗植装置9が上昇するよ
うに出来ている。切換弁21が作動してシリンダ18a
側のポートがタンク19側のポートに通じると、シリン
ダ18a内のオイルがタンク19内に戻り、苗植装置9
がその重量その他で下降する。
As shown in FIGS. 1 and 2, the pump 20
The oil discharged from the cylinder 18a passes through the switching valve 21.
When it flows in, the piston rod 18b projects and pushes down the rear end of the link mechanism 15, so that the seedling planting device 9 rises. The switching valve 21 operates to activate the cylinder 18a.
When the port on the side of the tank communicates with the port on the side of the tank 19, the oil in the cylinder 18a returns to the inside of the tank 19, and the seedling planting device 9
Will descend due to its weight and other factors.

【0011】横軸22が植付伝動ケースの10の下腹部
に回動自在に取付けられ、これから複数個のアーム23
が斜後下に伸び、それぞれの先端にそれぞれのフロート
13,14の後部が支軸48で回動自在に取付けられ、
横軸22の回動でフロート13,14の後端部が上下に
移動し、フロート13,14の先端部が支軸48の回り
に回動するようになっている。フロート13,14は、
中央のフロート13と、その両横に配置された側部のフ
ロート14で構成されている。そして、中央のフロート
13の先端は、ロッド49で前記の切換弁21に接続
し、フロート13の先端が上昇すると、ポンプ20のポ
ートがシリンダ18aのポートにつながり、下降する
と、シリンダ18aのポートがタンク19のポートにつ
ながるようになっている。従って、車輪4が耕盤の深い
所(浅い所)に来ると、乗用型走行車体1とともに苗植
装置9が沈んで(浮いて)支軸48が沈み(浮き上
り)、フロート13の先端が上昇(下降)し、ロッド4
9が上(下)って切換弁21が作動し、苗植装置9が上
昇(下降)する。
A horizontal shaft 22 is rotatably attached to the lower abdomen of the planted transmission case 10, from which a plurality of arms 23 are provided.
Extends obliquely downward and the rear portions of the floats 13 and 14 are rotatably attached to the respective tip ends by a support shaft 48,
The rear ends of the floats 13 and 14 move up and down by the rotation of the horizontal shaft 22, and the front ends of the floats 13 and 14 rotate around the support shaft 48. The floats 13 and 14 are
It is composed of a center float 13 and side floats 14 arranged on both sides of the float 13. The tip of the center float 13 is connected to the switching valve 21 by the rod 49. When the tip of the float 13 rises, the port of the pump 20 is connected to the port of the cylinder 18a, and when it descends, the port of the cylinder 18a is opened. It is connected to the port of the tank 19. Therefore, when the wheel 4 comes to a deep place (shallow place) of the cultivator, the seedling planting device 9 sinks (floats) together with the riding type traveling vehicle body 1 and the support shaft 48 sinks (lifts up), and the tip of the float 13 moves. Go up (down) and rod 4
9 moves up (down), the switching valve 21 operates, and the seedling planting device 9 moves up (down).

【0012】第3図のように、軸24が植付伝動ケース
10の先端部に横向で回動自在に取付けられ、コ型枠2
5の後端がこの軸24に固定されている。モーター30
が植付伝動ケース10に回動自在に取付けられ、これか
ら斜前下に伸びる雄ねじ30aがコ型枠25の雌ねじ3
1にねじ込まれ、モータ30の作動で雄ねじ30aが正
逆に回転してコ型枠25の先端が上下に移動するように
出来ている。アーム27がコ型枠25の基部に下向に固
定され、アーム28が横軸22から上に突出し、両者が
ロッド29で連結されて、コ型枠25が上下に回動する
と、アーム23も上下に回動して支軸28が上下するよ
うになっている。
As shown in FIG. 3, a shaft 24 is horizontally rotatably attached to the front end portion of the planted transmission case 10, and the U-frame 2
The rear end of 5 is fixed to this shaft 24. Motor 30
Is rotatably attached to the planted transmission case 10, and the male screw 30a extending obliquely downward from this is the female screw 3 of the U-shaped frame 25.
1, the male screw 30a is rotated in the forward and reverse directions by the operation of the motor 30 so that the tip of the U-shaped frame 25 moves up and down. When the arm 27 is fixed downward to the base of the U-shaped frame 25, the arm 28 projects upward from the horizontal shaft 22, and both are connected by the rod 29, and the U-shaped frame 25 rotates up and down, the arm 23 also moves. The support shaft 28 moves up and down by rotating up and down.

【0013】L型メタル35と一体のボス34が操作パ
ネル8内に回動自在に取付けられ、これから上に伸びる
制御感度(苗植え作業条件)を変更する操作レバー32
が案内溝33から上方に突出し、ばね36で横に押され
て案内溝33の側面の係合部に入り込むようになってい
る。アウタワイヤ38の両端が操作パネル8部とコ字枠
25に取付けられ、この中を通るワイヤ38aの一端が
L型メタル35の先端に取り付けられている。横から見
てく字型の拡縮リンク26の両端がコ字型25とフロー
ト13の先端部の間に取り付けられ、その左側の脚部が
上に伸び、前記のワイヤー38aの他端が、ばね37を
介してこの拡縮リンク26の上端に接続している。従っ
て、操作レバー32を矢印イ方向に操作すると、ばね3
7が緩んでフロート13の先端を下方に押し下げる力が
弱くなり、逆方向に操作すると、ばね37が張られてそ
の力が強くなるように出来ている。なお、切換弁21の
弁箱は上記のコ型枠25の側部に回動自在に取付けられ
ている。
A boss 34 integral with the L-shaped metal 35 is rotatably mounted in the operation panel 8, and the operation lever 32 for changing the control sensitivity (seedling planting work condition) extending upward from the boss 34.
Is projected upward from the guide groove 33, and is pushed laterally by the spring 36 to enter the engaging portion on the side surface of the guide groove 33. Both ends of the outer wire 38 are attached to the operation panel 8 portion and the U-shaped frame 25, and one end of the wire 38 a passing through the outer wire 38 is attached to the tip of the L-shaped metal 35. Both ends of the expansion-contraction link 26 having a V shape when viewed from the side are attached between the U-shape 25 and the tip portion of the float 13, the left leg portion thereof extends upward, and the other end of the wire 38a is connected to the spring 37. Is connected to the upper end of the expansion / contraction link 26 via. Therefore, when the operation lever 32 is operated in the arrow A direction, the spring 3
The force of pushing down the tip of the float 13 is weakened by the loosening of the float 7, and the spring 37 is stretched and becomes stronger when operated in the opposite direction. The valve box of the switching valve 21 is rotatably attached to the side portion of the U-shaped frame 25.

【0014】ポテンショメータ39がL型メタル35の
後で操作パネル8内に設けられている。このポテンショ
メータ39は、調節レバー42の操作によるパイプ41
の回動と、逆方向の調整板44の回動とで出力電圧が変
化するように出来ている。調節レバー42は、案内溝4
3から上方に突出し、調整板44はロッド45でL型メ
タル35の下端に接続し、調節レバー42の操作と、操
作レバー32の操作で出力電圧が変化するようになって
いる。なお、ロッド45の右端を孔50,50……に掛
け代えると、操作レバー32を操作したときの調整板4
4の回動量が調節できる。
A potentiometer 39 is provided in the operation panel 8 after the L-shaped metal 35. This potentiometer 39 is provided with a pipe 41 by operating an adjusting lever 42.
The output voltage is changed by the rotation of the adjustment plate 44 and the rotation of the adjusting plate 44 in the opposite direction. The adjusting lever 42 has a guide groove 4
3, the adjusting plate 44 is connected to the lower end of the L-shaped metal 35 by a rod 45, and the output voltage is changed by operating the adjusting lever 42 and the operating lever 32. In addition, when the right end of the rod 45 is replaced with the holes 50, 50 ..., The adjustment plate 4 when the operation lever 32 is operated.
The amount of rotation of 4 can be adjusted.

【0015】ポテンショメータ40が植付伝動ケース1
0と軸24の間に取り付けられ、軸24が回動すると、
出力電圧が変化するようになっている。そして、それぞ
れのポテンショメータ39,40とモータ30とが、第
4図および第5図のように、比較器46と増幅器47を
介してモータ30につながれている。従って、調節レバ
ー42を、浅植へ側(第1図および第3図の矢印ロの方
向)に操作すると、ポテンショメータ39の出力電圧が
ポテンショメータ40の出力電圧よりも増加し、増加分
の電圧が増幅器47で増幅されてモータ30が雄ねじ3
0aを正回転し、雌ねじ31がコ型枠25の先端を引き
上げ、ロッド29で引かれてアーム23の後端が上り、
支軸48がフロート13,14の後部を引き上げて苗の
植付深さが浅くなる。このとき、軸24がコ型枠25と
ともに回動するので、ポテンショメータ40の出力電圧
も次第に増加し、これがポテンショメータ39からの出
力電圧に一致したとき、モータ30の作動が停止する。
調節レバー42を逆の深植へ側に操作したときは、これ
とは逆にモータ30が作動する。
The potentiometer 40 is a transmission case 1 with a plant.
It is attached between 0 and the shaft 24, and when the shaft 24 rotates,
The output voltage changes. The respective potentiometers 39, 40 and the motor 30 are connected to the motor 30 via the comparator 46 and the amplifier 47 as shown in FIGS. 4 and 5. Therefore, when the adjusting lever 42 is operated to the shallow planting side (the direction of arrow B in FIGS. 1 and 3), the output voltage of the potentiometer 39 increases more than the output voltage of the potentiometer 40, and the increased voltage increases. Amplified by the amplifier 47, the motor 30 turns the male screw 3
0a is normally rotated, the female screw 31 pulls up the tip of the U-shaped frame 25, is pulled by the rod 29, and the rear end of the arm 23 rises,
The support shaft 48 pulls up the rear portions of the floats 13 and 14 to reduce the planting depth of the seedlings. At this time, since the shaft 24 rotates together with the U-shaped frame 25, the output voltage of the potentiometer 40 also gradually increases, and when this matches the output voltage from the potentiometer 39, the operation of the motor 30 stops.
When the adjusting lever 42 is operated to the opposite side of the deep implantation, the motor 30 operates in the opposite manner.

【0016】田植機を泥土が軟い水田で用いるとき、操
作レバー32を軟或は敏感側(矢印イ方向)に操作す
る。すると、ワイヤー38が緩んでばね37の張力が弱
くなる。従って、フロート13の先端は、少い力で上昇
してロッド49が切換弁21をたやすく切換得る状態と
なる。このとき、L型メタル35がロッド45で調整板
44を反時計方向(矢印ハ)に回動し、ポテンショメー
タ39は、調節レバー42を前記の矢印反ロ方向に操作
したときと同様に、出力電圧が低下し、モータ30が雄
ねじ30aを逆転し、レバー23の後端が下ってフロー
ト13,14の後端が下り、若干深植側に補正される。
田植機が泥土の硬い所に来たときなどは、上記とは逆に
操作し、フロート13,14の後端が支軸48でつり上
げられて浅植側に調整される。
When the rice transplanter is used in a paddy field where mud is soft, the operation lever 32 is operated to the soft or sensitive side (arrow A direction). Then, the wire 38 is loosened and the tension of the spring 37 is weakened. Therefore, the tip of the float 13 is lifted with a small force to allow the rod 49 to easily switch the switching valve 21. At this time, the L-shaped metal 35 rotates the adjusting plate 44 in the counterclockwise direction (arrow C) by the rod 45, and the potentiometer 39 outputs the same as when the adjusting lever 42 is operated in the direction opposite to the arrow. The voltage decreases, the motor 30 reverses the male screw 30a, the rear end of the lever 23 descends, and the rear ends of the floats 13 and 14 descend, which is slightly corrected to the deep planting side.
When the rice transplanter comes to a place where the mud is hard, the operation is carried out in the opposite manner, and the rear ends of the floats 13 and 14 are lifted by the support shaft 48 and adjusted to the shallow planting side.

【0017】そして、水田の耕盤に深い浅いがあると、
その深い浅いに応じてフロート13の先端を上下させ、
その上下動の信号で駆動装置18が苗植装置9を上下さ
せてこれを泥面から一定の高さに保つから、耕盤の深い
浅いにかかわらず、苗植付具12による苗の植付深さが
均一化する。このように、圃場の硬軟等の条件に応じて
泥土が軟らかい時は、乗用型走行車体1に設けた制御感
度(苗植え作業条件)を変更する操作レバー32を敏感
側(矢印イ方向)に操作して上述の耕盤の深い浅いにか
かわらず苗植付具12による苗の植付深さが均一化する
制御が適正に行なえるようにするが、その時に、前記フ
ロート13の後端の支軸48が上方に自動的に変動して
苗の植付深さが深くなるように補正される。従って、泥
土が軟らかい時には植付けた苗が泥土から抜けてしまい
浮き苗になってしまうことがあるが、上述のように操作
レバー32を敏感側に操作すると深く植付けるように補
正されるので、この浮き苗の発生が防止されて適正な苗
の植付けが行なえる。逆に、泥土が硬い時は、制御感度
(苗植え作業条件)を変更する操作レバー32を鈍感側
に操作すると、前記フロート13の後端の支軸48が下
方に自動的に変動して苗の植付深さが浅くなるように補
正される。従って、泥土が硬い時には苗を深く植えると
硬い泥土の反力が大きくて苗が痛み易いが、上述のよう
に操作レバー32を鈍感側に操作すると浅く植付けるよ
うに補正されるので、この苗の損傷が防止されて適正な
苗の植付けが行なえる。
When the paddy field has a deep shallow depth,
Move the tip of the float 13 up and down according to its depth
The drive device 18 moves the seedling planting device 9 up and down by the signal of the vertical movement and keeps it at a constant height from the mud surface, so that the seedling planting device 12 can plant the seedlings regardless of the depth of the plow. The depth becomes uniform. As described above, when the mud is soft according to the conditions such as the hardness of the field, the operation lever 32 for changing the control sensitivity (seedling planting work condition) provided on the riding-type traveling vehicle body 1 is set to the sensitive side (arrow A direction). The seedling planting tool 12 can appropriately control the seedling planting depth to be uniform regardless of the depth and depth of the cultivator described above. The support shaft 48 is automatically moved upward to correct the seedling planting depth. Therefore, when the muddy soil is soft, the planted seedlings may come out of the muddy soil and become floating seedlings. However, when the operation lever 32 is operated to the sensitive side as described above, the seedlings are corrected to be deeply planted. The generation of floating seedlings is prevented and proper seedlings can be planted. On the contrary, when the mud is hard, when the operation lever 32 for changing the control sensitivity (seedling planting work condition) is operated to the insensitive side, the support shaft 48 at the rear end of the float 13 automatically moves downward and the seedling is moved. The planting depth will be corrected to be shallower. Therefore, when the mud is hard, if the seedling is planted deeply, the reaction force of the hard mud is large and the seedling is apt to be painful. The damage to the plants is prevented and proper seedlings can be planted.

【図面の簡単な説明】[Brief description of drawings]

【図1】田植機の要部の側面図[Figure 1] Side view of the main part of rice transplanter

【図2】油圧回路図[Fig. 2] Hydraulic circuit diagram

【図3】要部の拡大斜視図FIG. 3 is an enlarged perspective view of a main part.

【図4】ブロック回路図FIG. 4 is a block circuit diagram.

【図5】電気回路図[Fig. 5] Electric circuit diagram

【符号の説明】[Explanation of symbols]

1 乗用型走行車体 9 苗植装
置 12 苗植付具 13・14 フロ
ート 15 リンク機構 30 モー
タ 32 操作レバー 48 支軸
1 Riding type vehicle body 9 Seedling planting device 12 Seedling planting equipment 13/14 Float 15 Link mechanism 30 Motor 32 Operating lever 48 Spindle

Claims (1)

【特許請求の範囲】[Claims] 【請求項1】 前部が上下動すべく後部が支軸48にて
枢支され圃場面に接地するフロート13・14と圃場に
苗を植付ける苗植付具12とを有する苗植装置9をリン
ク機構15にて乗用型走行車体1の後部に上下動自在に
装着し、フロート13・14はその後部支軸48が上下
に移動調節されて苗植付具12による苗の植付深さが変
更できる乗用型田植機において、乗用型走行車体1に設
けた苗植え作業条件を変更する操作レバー32の操作に
より前記フロート13・14の後部支軸48を上下に移
動させるモータ30を苗植装置9の機体に設けたことを
特徴とする乗用型田植機。
1. A seedling planting device 9 comprising floats 13 and 14 whose rear portion is pivotally supported by a support shaft 48 so that the front portion can move up and down, and which is in contact with a field scene, and a seedling planting tool 12 for planting seedlings in the field. Is attached to the rear part of the riding-type traveling vehicle body 1 by the link mechanism 15 so as to be movable up and down. In the riding type rice transplanter capable of changing the seedling, the motor 30 for moving the rear support shaft 48 of the floats 13 and 14 up and down by operating the operation lever 32 provided on the riding type traveling vehicle body 1 for changing the seedling planting work conditions is used. A riding-type rice transplanter, which is provided in the body of the device 9.
JP4099555A 1992-04-20 1992-04-20 Riding rice transplanter Expired - Lifetime JPH0785686B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4099555A JPH0785686B2 (en) 1992-04-20 1992-04-20 Riding rice transplanter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4099555A JPH0785686B2 (en) 1992-04-20 1992-04-20 Riding rice transplanter

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
JP59232103A Division JPH0687692B2 (en) 1984-11-02 1984-11-02 Seedling planting machine

Publications (2)

Publication Number Publication Date
JPH05111318A JPH05111318A (en) 1993-05-07
JPH0785686B2 true JPH0785686B2 (en) 1995-09-20

Family

ID=14250411

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4099555A Expired - Lifetime JPH0785686B2 (en) 1992-04-20 1992-04-20 Riding rice transplanter

Country Status (1)

Country Link
JP (1) JPH0785686B2 (en)

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0687692B2 (en) * 1984-11-02 1994-11-09 井関農機株式会社 Seedling planting machine

Also Published As

Publication number Publication date
JPH05111318A (en) 1993-05-07

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