JPS58209909A - Rice planter - Google Patents

Rice planter

Info

Publication number
JPS58209909A
JPS58209909A JP9086882A JP9086882A JPS58209909A JP S58209909 A JPS58209909 A JP S58209909A JP 9086882 A JP9086882 A JP 9086882A JP 9086882 A JP9086882 A JP 9086882A JP S58209909 A JPS58209909 A JP S58209909A
Authority
JP
Japan
Prior art keywords
planting
float
section
sensitivity
soil leveling
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.)
Pending
Application number
JP9086882A
Other languages
Japanese (ja)
Inventor
伊佐男 石田
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
Iseki Agricultural Machinery Mfg Co Ltd
Original Assignee
Iseki and Co Ltd
Iseki Agricultural Machinery Mfg 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, Iseki Agricultural Machinery Mfg Co Ltd filed Critical Iseki and Co Ltd
Priority to JP9086882A priority Critical patent/JPS58209909A/en
Publication of JPS58209909A publication Critical patent/JPS58209909A/en
Pending legal-status Critical Current

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  • Transplanting Machines (AREA)

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。
(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

【発明の詳細な説明】 本発明は、田植圃場ぐの機体旋回時に整地フロートで枕
地を整地するようにし、かつ整地70−トの上下応動を
制mジるようにした田植機にrIAツるものである。
DETAILED DESCRIPTION OF THE INVENTION The present invention provides an rIA attachment for a rice transplanter which uses a land leveling float to level the headland when turning the machine in a rice planting field, and which controls the vertical response of the leveling 70-t. It is something that

従来周知の、走行車に、油圧機構によって作動する昇降
装置を介して、下部に上下動可能な整地フロートを有力
る植付作業部を装着した田植機においては、枕地におけ
る機体旋回時に、通常、昇降装置により植付作業部を揚
上した状態で回行Jるので、走行車の車輪跡が枕地に残
ることになって、枕地に苗を植付ける際に改め−て整地
・均平りる必要を生じて好ましくない。このため、走行
車の旋回動作が終了Jると直ちに植付作業部を下降して
整地フロートを接地させて走行車の車輪跡を消去し、整
地・均平りる作業手段がとられている。
In a conventionally known rice transplanter in which a rice transplanter is equipped with a planting work unit equipped with a soil leveling float that can be moved up and down at the bottom of a traveling vehicle through a lifting device operated by a hydraulic mechanism, when the machine turns on a headland, Since the planting work section is lifted up by the lifting device and moved around, wheel marks from the traveling vehicle remain on the headland, which means that the land must be leveled and leveled again when planting seedlings on the headland. This is not desirable as it requires flattening. For this reason, as soon as the turning operation of the traveling vehicle is completed, the planting section is lowered and the soil leveling float is brought into contact with the ground to erase the wheel marks of the traveling vehicle and level the ground. .

この場合、整地フロートは、そ、の接地圧が弱いと十分
な整地・均平ができないので、接地圧が強い。
In this case, if the ground pressure of the ground leveling float is weak, sufficient ground leveling and leveling cannot be achieved, so the ground pressure is strong.

即ち、フロートが容易に上下動しない状態に保持jるこ
とが望ましい。一般に整地フロートには、植付作業部を
揚上したときにその上下動をロックするロック機構や、
また、円面に接したときの上下動の感度を調節する感度
調節機構等を具備しているが、田植機の旋回時には、ま
ず植付作業部の動力を「切」にして植付作業を停止し、
次に昇降装置により植付作業部を揚上し、つづいて走行
車を操向ハンドルの操作で旋回し、旋回直後に植付作業
部を下降させ、さらに植付開始位置で植付作業部の動力
を「入」にするなど、極めて短い時間に多くの操作を連
続的に手際よく行なわねばならず、前記ロック機微や感
度調節機構等を操作づるのは困難で、フロートの接地圧
が弱い状態で不十分な枕地整地作業を行なっているのが
現状ぐある。
That is, it is desirable to maintain the float in a state where it does not easily move up and down. Generally, soil leveling floats have a locking mechanism that locks the vertical movement of the planting section when it is lifted up.
The rice transplanter is also equipped with a sensitivity adjustment mechanism that adjusts the sensitivity of vertical movement when in contact with a circular surface, but when turning the rice transplanter, first turn off the power of the planting section and start the planting operation. stop,
Next, the planting work section is lifted up using the lifting device, the traveling vehicle is then turned by operating the steering wheel, the planting work section is lowered immediately after turning, and then the planting work section is raised at the planting start position. Many operations, such as turning on the power, must be performed continuously and skillfully in an extremely short period of time, making it difficult to operate the locking mechanism, sensitivity adjustment mechanism, etc., and the ground pressure of the float is weak. At present, insufficient headland leveling work is being carried out.

そこで本発明は、整地フロートで枕地を整地すべく動力
を1切」にしIC植付作業部を下降させた際、整地フロ
ートが容易に上下動しない状態、即ら接地圧の強い状態
に保持され、植付作業を開始するため動力を1人」にす
ると整地フロートが自在に上下動づるように、一つの操
作で2つの作動部を連動して切換えられるようにし、枕
地の整地を良好に行ない得るようにζると共に、植付作
業時における整地フロートの一トド動感度を田面の硬軟
によって調節できるようにした田植機を配係しようとす
るものである。
Therefore, in the present invention, when the IC planting work section is lowered by turning off the power to level the headland with the land leveling float, the land leveling float is maintained in a state where it does not easily move up and down, that is, in a state where the ground pressure is strong. When the power is turned on by one person to start the planting work, the leveling float can move up and down freely, so the two operating parts can be switched in conjunction with one operation, which improves the leveling of the headland. In addition, the aim is to deploy a rice transplanter that can adjust the sensitivity of the ground leveling float's one-tod movement during planting work depending on the hardness and softness of the rice field.

この目的のため本発明は、整地フロートに、下方への押
圧力を調整する感度調節機構を設け、この感度調節機構
と、植付作業部への動力を「入」・「切」する操作部と
を、操作部を[入]にしたとき整地フロートの上方への
押圧力を弱くしてその接地圧が適正になるようにし、操
作部を「切」にしたときは整地フロートの一ト方への押
圧力を強くして接地圧が大きくなるように連動させると
共に、感度調節機構に、整地フロートの上下応動感度を
制御ツる感度制御装置を設けたことを特徴とり−るもの
でのである。
For this purpose, the present invention provides the soil leveling float with a sensitivity adjustment mechanism that adjusts the downward pressing force, and combines this sensitivity adjustment mechanism with an operation section that turns on and off power to the planting section. When the operating section is turned on, the upward pressure on the soil leveling float is weakened so that the ground pressure is appropriate, and when the operating section is turned off, one side of the ground leveling float is reduced. This feature is characterized in that the pressing force is increased to increase the ground pressure, and the sensitivity adjustment mechanism is equipped with a sensitivity control device that controls the sensitivity of the vertical response of the soil leveling float. .

以下、図示の実施例を参照Iノで本発明を説明りる。The invention will now be described with reference to the illustrated embodiments.

第1図および第2図において、符号1は乗用4輪形式の
走行車で、この走行車1は前輪2、後輪3をそれぞれ駆
動して走行づるようになっており、その機体後部には上
下リンクからなる昇降リンク4が設けられ、この昇降リ
ンク4を介して植付作業部5が装着されている。昇降リ
ンク4は油圧シリンダ6の伸縮により上下動すると共に
、走行車1から植付作業部5へ動力を伝達4る伝達機構
を兼ね、さらに植付作業部5をローリングおよびピッチ
ング可能に装着している。
In FIGS. 1 and 2, reference numeral 1 indicates a four-wheeled passenger vehicle, and this vehicle 1 moves by driving front wheels 2 and rear wheels 3, respectively. An elevating link 4 consisting of an upper and lower link is provided, and a planting work unit 5 is attached via this elevating link 4. The elevating link 4 moves up and down by the expansion and contraction of the hydraulic cylinder 6, and also serves as a transmission mechanism for transmitting power from the traveling vehicle 1 to the planting work section 5, and furthermore, the planting work section 5 is mounted so as to be capable of rolling and pitching. There is.

前記植付作宸部5は、昇降リンク4の後端部に連結され
、かつ伝動ケースを兼ねる本体フレームlの上方に、後
傾姿勢で斜設され、その上面に植付苗を載置してん右方
向に所定のストロークで往復移動する苗載せ台8を設け
、この苗l1il!せ台8の傾斜上端に対向して、上下
方向に所定の軌跡を画いて往復動し、苗載せ台8から苗
を一株ずつ切出して田面に植付ける植込み体9を設けで
いる。また、本体フレーム7の下側には、センターフロ
ート10と、サイドフロートi1. iiとからなり、
植付作業部5を下降したとき田面に接して、走行車1の
走行で田面を滑走しながら整地するフロートが設けられ
ている。センターフロート10およびナイドフロート1
1は、第3図に詳細に承りようにその後部を本体フレー
ム7に対し前接方向に回動自在に枢支され、その枢支位
i;&□を本体フレーム7に対して上下調節可能とし、
植込み体9による苗の植付は深さが調節されるようにな
っている。ざらに、サイドフロート11の前部は、リン
ク体12を介して本体フレーム7に上下動可能に装着さ
れ、また、センターフロート10の前部は、本体フレー
ム1から前方に突出し、上方に屈曲ケるように延出りる
支持アーム13に、リンク体14を介して上下動可能に
装着されると共に、支持アーム13およびセンターフロ
ート10のリンク体14の枢支位置間には、リンク体1
4の上下動、即ちセンターフロート10の上下動によっ
て切換えられる切換えバルブ15が介装されている。こ
の切換パルプ15は、前記油圧シリンダ6の油路を切換
えで伸縮させるもので、走行車1が」盤の凹凸等によっ
て上下動したとき、昇降リンク4を介して植付作業部5
が上下動し、これに伴ってフロートがその後部を支点に
してリンク12.14により前部を上下動し、油路が切
換えられて油圧シリンダ6を伸縮し、昇降リンク4を介
して植付作業部5を上下動してフロートの接地圧を常に
ほぼ一定に保持するようにしたものである。
The planting section 5 is connected to the rear end of the lifting link 4 and is installed obliquely above the main body frame l, which also serves as a transmission case, in a backward tilted position, and the planting seedlings are placed on the upper surface of the planting section 5. A seedling stand 8 that moves back and forth in the right direction with a predetermined stroke is provided, and this seedling l1il! A planting body 9 is provided opposite the sloped upper end of the table 8, which reciprocates in the vertical direction with a predetermined locus, cuts out seedlings one by one from the seedling table 8, and plants them on the rice field. Further, on the lower side of the main body frame 7, a center float 10 and side floats i1. Consisting of ii,
A float is provided that comes into contact with the rice field when the planting work part 5 is lowered and levels the ground while sliding on the rice field as the traveling vehicle 1 travels. Center float 10 and night float 1
As shown in detail in FIG. 3, the rear part of the main body frame 7 is rotatably supported in the front direction, and the pivot position i; & □ can be adjusted up and down with respect to the main body frame 7. year,
The depth of planting of seedlings using the planting body 9 is adjusted. Roughly speaking, the front part of the side float 11 is attached to the main body frame 7 via a link body 12 so as to be movable up and down, and the front part of the center float 10 projects forward from the main body frame 1 and is bent upward. The link body 13 is attached to the support arm 13 which extends so as to be vertically movable via the link body 14, and the link body 1 is attached between the pivot positions of the support arm 13 and the link body 14 of the center float 10.
A switching valve 15 is provided which is switched by the vertical movement of the center float 10, that is, by the vertical movement of the center float 10. This switching pulp 15 expands and contracts by switching the oil passage of the hydraulic cylinder 6, and when the traveling vehicle 1 moves up and down due to unevenness of the board, the switching pulp 15 moves the oil passage of the hydraulic cylinder 6 to the planting work part 5 through the lifting link 4.
moves up and down, and in conjunction with this, the front part of the float moves up and down using its rear part as a fulcrum through links 12 and 14, the oil passage is switched, the hydraulic cylinder 6 expands and contracts, and the planting is carried out via the elevating link 4. The working part 5 is moved up and down to keep the ground pressure of the float almost constant.

一方、走行車1の運転座席16の一側部には、植付クラ
ッチレバ−17が設けられ、このクラッチレバ−11と
植付作業部の本体フレーム7の前部に設けたギヤボック
ス7a間には操作ワイヤ18が張架され、クラッチレバ
−17の操作により植付作業部5の動力を[入]・「切
」操作するようになっている。また、クラッチレバ−1
7には、もう一本の操作ワイヤ19が連結され、そのイ
ンナーワイヤの先端にコイルばね20の一端を連結し、
この」イルばね20の他端をリンク体14の突出部14
aに連結すると共に、アウターチューブを、支持アーム
13の先端側に相克したベルクランク21の一端に係止
している。このベルクランク21の他端には、操作ワイ
ヤ22の先端が連結され、操作ワイヤの基端はクラッチ
レバ−18の近傍に設けた制御レバー23に連結されて
いる。そして、植付クラッチレバ−17を操作して、操
作ワイヤ18を介して植付作業部5の動力を[人]にし
た植付作業時には、操作ワイヤ19は引かれることなく
、コイルばね20のばね圧を弱い状態に保持してリンク
体14の上下動を自在に行なわせ、センターフロート1
0は田面への追従性を良好に保持する。また、植付クラ
ッチ11で植付作業部の動力を「切」にした非植付作業
時には、操作ワイヤ19が引かれてコイルばね20のば
ね圧が強くなり、リンク体14はセンターフロート10
を下方に押圧するように作用し、センターフロート10
が田面に接した状態で容易に上下動しないように連動構
成となっている。さらに、制御レバー23によりコイル
ばね20のばね圧が調節゛されて円面の硬軟によってセ
ンターフロート10の上下動感度が制御されるものであ
る。
On the other hand, a planting clutch lever 17 is provided on one side of the driver's seat 16 of the traveling vehicle 1, and between this clutch lever 11 and a gear box 7a provided at the front of the main body frame 7 of the planting work section. An operating wire 18 is strung across, and the power of the planting section 5 is turned on and off by operating a clutch lever 17. Also, clutch lever 1
Another operating wire 19 is connected to 7, and one end of a coil spring 20 is connected to the tip of the inner wire.
The other end of this spring 20 is connected to the protrusion 14 of the link body 14.
The outer tube is connected to one end of a bell crank 21 which is opposed to the distal end side of the support arm 13. The other end of the bell crank 21 is connected to the tip of an operating wire 22, and the proximal end of the operating wire is connected to a control lever 23 provided near the clutch lever 18. Then, during planting work in which the planting clutch lever 17 is operated and the power of the planting work section 5 is set to [human] via the operating wire 18, the operating wire 19 is not pulled and the coil spring 20 is activated. By keeping the spring pressure weak and allowing the link body 14 to move freely up and down, the center float 1
0 maintains good followability to the field surface. In addition, during non-planting work when the power of the planting work part is turned off with the planting clutch 11, the operating wire 19 is pulled and the spring pressure of the coil spring 20 is strengthened, and the link body 14 is connected to the center float 10.
The center float 10
It has an interlocking structure so that it does not easily move up and down while in contact with the rice field. Furthermore, the spring pressure of the coil spring 20 is adjusted by the control lever 23, and the vertical movement sensitivity of the center float 10 is controlled by the hardness and softness of the circular surface.

このように構成された乗用型田植機において、苗植付作
業を行なうときは、昇降リンク4により植付作業部5を
下降さ往、センターフロート10およびサイドフロート
11.11を田面に接して走行車1に牽引されて滑走す
ると同時に、運転座席16に座った作業者は植付クラッ
チレバ−11を「入J側に作動して植付作業部5を駆動
させる。植付作業部5では、植(=1苗を載置した苗載
せ台8が左右に所定のストロークで往復移動づる間に、
植込み休9によって苗が一株ずつ切出されて円面に植付
けられる。植付作業部5が田面を滑走して植付作置を行
なっている闇に、走行車1が耕盤の凹凸等により上下動
すると、感知フロートであるセンターフロート10の上
下動で植付作業部5が昇降リンク4により上下動され、
両フロート10、+1.11はほぼ一定の接地圧に保持
され、植込み体9により苗が適正深さおよび適正姿勢に
植付けられる。このとき、センター71コート10のリ
ンク体14は、コイルばね20の規制をほとんど受けな
いので、田面の硬軟によって制御レバー23により制御
された−」イルばね20のばね圧に応じて田面に沿って
自在に上下動し切換バルブ15を切換えて植付作業部5
を上下動させる。
In the riding-type rice transplanter configured as described above, when planting seedlings, the planting section 5 is lowered by the lifting link 4, and the center float 10 and side floats 11 and 11 are moved in contact with the rice field. At the same time as the vehicle 1 slides while being towed by the vehicle 1, the worker sitting in the driver's seat 16 operates the planting clutch lever 11 to the "J side" to drive the planting work section 5.In the planting work section 5, Planting (= While the seedling platform 8 on which one seedling is placed reciprocates from side to side with a predetermined stroke,
During the planting holiday 9, seedlings are cut out one by one and planted in a circle. In the darkness, when the planting work unit 5 is sliding on the rice field to perform planting, when the traveling vehicle 1 moves up and down due to unevenness of the tiller, etc., the planting work is carried out by the up and down movement of the center float 10, which is a sensing float. The part 5 is moved up and down by the lifting link 4,
Both floats 10 and +1.11 are maintained at a substantially constant ground pressure, and the seedlings are planted by the planting body 9 at an appropriate depth and in an appropriate posture. At this time, the link body 14 of the center 71 coat 10 is hardly regulated by the coil spring 20, so it is controlled by the control lever 23 depending on the hardness or softness of the surface. The planting work section 5 can be moved up and down freely by switching the switching valve 15.
move up and down.

田植機が圃場端の枕地に至ると、作業者は、まず植付ク
ラッチレバ−17を「切」側に作動して植付作業部5の
駆動を停止し、これと同時に昇降リンク4によって植付
作業部5を揚上し、走行車1を操向ハンドル24により
旋回させる。走行車1の旋回動作が終了すると同時にr
7降リンク4によって植付作業部5を下降させてフロー
トio、 iiを田面に接して滑走させることにより、
走行車1の車輪跡を均平に整地する。このときのセンタ
ーフロート10は、コイルばね20のばね圧が制御レバ
ー23の設定圧よりさらに強くなっているので、リンク
体14は容易に上下動りることなく、従って、センター
フロート10は下方への押圧力が強くなって円面の整地
を良好に行ない、また、フロート10の上下動感度は鈍
(なっていて切換バルブ15はほとんど切換わらない。
When the rice transplanter reaches the headland at the edge of the field, the operator first operates the planting clutch lever 17 to the "off" side to stop driving the planting work section 5, and at the same time, the operator operates the planting clutch lever 17 to the "off" side to stop driving the planting work section 5. The planting work section 5 is lifted up and the traveling vehicle 1 is turned using the steering handle 24. At the same time as the turning operation of traveling vehicle 1 ends, r
7 By lowering the planting section 5 using the descending link 4 and sliding the floats io and ii in contact with the rice field,
The wheel marks of the traveling vehicle 1 are leveled. At this time, the center float 10 moves downward because the spring pressure of the coil spring 20 is stronger than the set pressure of the control lever 23, so the link body 14 does not easily move up and down. The pressing force of the float 10 is increased to level the circular surface well, and the sensitivity of the vertical movement of the float 10 is so low that the switching valve 15 hardly switches.

そし−C1田植作業m15が苗の植付は位置に来ると、
作業者は植付クラ・ンチレバー17をE入」側に作動し
て植付作業部5を駆動させると、これと同時にセンター
フロート10は上下動が正常になり上下動感度を適正に
して植付は作業を再開する。これらの、機体旋回開始前
の植付クラッチレバ−1の「切」操作から旋回終了後の
「入」操作までの一連の操作は、走11車1の走行を停
止することなく連続して行なわれ、従って、作業者にと
ってはかなり繁忙な操作となるが、本発明では、植付ク
ラッチレバ−11の「入1・「切」動作と連動して、セ
ンターフロート10の下方への押圧感度が切換えられ、
操作の簡略化と共に、枕地の整地作業が適確に行われる
Soshi-C1 Rice planting work When m15 reaches the position for planting seedlings,
When the operator operates the planting crane lever 17 to the "E" side to drive the planting work section 5, the center float 10 at the same time returns to normal vertical movement and plants with appropriate vertical movement sensitivity. resumes work. These series of operations, from the ``off'' operation of the planting clutch lever 1 before the start of the aircraft turn to the ``on'' operation after the end of the turn, are performed continuously without stopping the running of the 11 vehicles 1. Therefore, it is a very busy operation for the operator, but in the present invention, the downward pressing sensitivity of the center float 10 is adjusted in conjunction with the "ON 1" and "OFF" operations of the planting clutch lever 11. switched,
In addition to simplifying operations, headland leveling work can be performed accurately.

かくて本発明の田植機によれば、植付クラッチレバ−を
「入」にするとセンターフロートの下方への押圧力が弱
くなって上下動感度を適正にしてフロートの接地圧をほ
ぼ一定に保持し、正確な苗植付は作業を行なうことがで
き、植付クラッチレバ−を「切」にするとセンターフロ
ートの下方への押圧力が強くなって、フロートによる枕
地の整地を的確に行なうことができる。しかも、これら
の動作は連動して行なわれるので、旋回操作時の繁忙な
動作中においても操作忘れがなく、適正な作業を確実に
行なうことができる。さらに、植付作業時には、円面の
硬軟に応じ−Cフロートの上下動感度を適正に制御でき
る。
Thus, according to the rice transplanter of the present invention, when the planting clutch lever is turned on, the downward pressing force of the center float is weakened, the vertical motion sensitivity is adjusted to an appropriate level, and the ground pressure of the float is maintained almost constant. However, accurate seedling planting can be carried out, and when the planting clutch lever is turned off, the downward pressing force of the center float becomes stronger, allowing the float to level the headland accurately. I can do it. Moreover, since these operations are performed in conjunction with each other, even during busy turning operations, no operations are forgotten, and proper work can be performed reliably. Furthermore, during planting work, the vertical motion sensitivity of the -C float can be appropriately controlled depending on the hardness or softness of the circular surface.

【図面の簡単な説明】 第1図は本発明の実施例を示1乗用型田植機の側面図、
第2図は同平面図、第3図は要部の拡大側面図である。 1・・・走行車、2・・・前輪、3・・・後輪、4・・
・昇降1ノンク、5・・・植付作業部、6・・・油圧シ
リンダ、7・・・本体フレーム、7a・・・ギヤボック
ス、8・・・苗載せ台、9・・・植込み体、10・・・
センターフロート、11・・・サイドフロート、12.
14・・・リンク体、13・・・支持ア ム、14a・
・・突出部、15・・・切換バルブ、16・・・運転座
席、冒・・・植付クラッチレバ−118,19,22・
・・操作ワイヤ、20・・・コイルばね、21・・・ベ
ルクランク、23・・・感度制御レバー、24・・・操
向ハンドル。 特許出願人    井関農機株式会社 代理人弁理士   小 橋 伯 浮 量 弁理士   村 井   進
[Brief Description of the Drawings] Figure 1 shows an embodiment of the present invention; a side view of a riding type rice transplanter;
FIG. 2 is a plan view of the same, and FIG. 3 is an enlarged side view of the main parts. 1... Running vehicle, 2... Front wheels, 3... Rear wheels, 4...
- Lifting 1 nonk, 5... Planting work part, 6... Hydraulic cylinder, 7... Main body frame, 7a... Gear box, 8... Seedling stand, 9... Planting body, 10...
Center float, 11... Side float, 12.
14... Link body, 13... Support arm, 14a.
・Protruding portion, 15 ・Switching valve, 16 ・Driver's seat, Explosion... Planted clutch lever 118, 19, 22 ・
...Operation wire, 20...Coil spring, 21...Bell crank, 23...Sensitivity control lever, 24...Steering handle. Patent applicant: Iseki Agricultural Machinery Co., Ltd. Representative patent attorney: Haku Kobashi Ukiyo Patent attorney: Susumu Murai

Claims (1)

【特許請求の範囲】[Claims] 走行車に、油圧機構によって昇降動作する連結装置を介
して田植作業部を装着し、かつ田植作業部には下部に上
下動可能な整地フロートを設けてなる田植機において、
整地フロートと油圧機構の切換バルブとを連動構成にし
てフロートの上下動に応動して植付作業部が上下動し整
地フロートの接地圧をほぼ一定に保持するように構成し
、さらに整地フロートには、下方への押圧力を調整りる
感度調節機構を設け、この感度調節機構と、植付作業部
への動力をr入J・[切]する操作部とを、操作部を「
入」にしたとき整地フロートの下方への押圧力を弱くし
て接地圧が正常となるようにし、また操作部を「切」に
したときは整地フロー、トの下方への押圧力を強くして
接地圧が太き(なるように相互に連動させると共に、前
記感度調節機構に、整地フロートの上下応動感度を制御
する感度制御装置を設けてなることを特徴とする田植機
A rice transplanter in which a rice transplanting work part is attached to a traveling vehicle via a coupling device that moves up and down by a hydraulic mechanism, and a rice transplanting work part is provided with a soil leveling float that can move up and down at the bottom,
The soil leveling float and the switching valve of the hydraulic mechanism are configured in an interlocking manner so that the planting work section moves up and down in response to the vertical movement of the float to maintain the ground pressure of the soil leveling float at a nearly constant level. is equipped with a sensitivity adjustment mechanism that adjusts the downward pressing force, and connects this sensitivity adjustment mechanism and an operation section that turns on and off the power to the planting work section.
When set to ``ON'', the downward pressing force of the soil leveling float is weakened to maintain normal ground pressure, and when the control section is set to ``OFF'', the downward pressing force of the soil leveling float is strengthened. The rice transplanter is characterized in that the sensitivity adjustment mechanism is provided with a sensitivity control device that controls the vertical response sensitivity of the soil leveling float.
JP9086882A 1982-05-27 1982-05-27 Rice planter Pending JPS58209909A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9086882A JPS58209909A (en) 1982-05-27 1982-05-27 Rice planter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9086882A JPS58209909A (en) 1982-05-27 1982-05-27 Rice planter

Publications (1)

Publication Number Publication Date
JPS58209909A true JPS58209909A (en) 1983-12-07

Family

ID=14010500

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9086882A Pending JPS58209909A (en) 1982-05-27 1982-05-27 Rice planter

Country Status (1)

Country Link
JP (1) JPS58209909A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60156313A (en) * 1984-01-27 1985-08-16 井関農機株式会社 Agricultural machine for rice field
JP2005204613A (en) * 2004-01-26 2005-08-04 Iseki & Co Ltd Agricultural work vehicle for paddy field

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60156313A (en) * 1984-01-27 1985-08-16 井関農機株式会社 Agricultural machine for rice field
JP2005204613A (en) * 2004-01-26 2005-08-04 Iseki & Co Ltd Agricultural work vehicle for paddy field

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