JP2007000066A - Seedling planting machine - Google Patents

Seedling planting machine Download PDF

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Publication number
JP2007000066A
JP2007000066A JP2005183475A JP2005183475A JP2007000066A JP 2007000066 A JP2007000066 A JP 2007000066A JP 2005183475 A JP2005183475 A JP 2005183475A JP 2005183475 A JP2005183475 A JP 2005183475A JP 2007000066 A JP2007000066 A JP 2007000066A
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Prior art keywords
seedling planting
seedling
link
shaft
arm
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Inventor
Eiichiro Kinoshita
木下　　栄一郎
Shiro Katsuno
勝野　　志郎
Masami Muranami
村並　　昌実
Yoshihiko Okubo
大久保　　嘉彦
Hideaki Kurose
英明 黒瀬
Hirotaka Doi
土井　　宏貴
Nobuhiro Yamane
暢宏 山根
Minoru Matsuoka
実 松岡
Masahiro Takemoto
竹本　　雅浩
Masao Inada
誠生 稲田
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Iseki and Co Ltd
Iseki Agricultural Machinery Mfg Co Ltd
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Iseki and Co Ltd
Iseki Agricultural Machinery Mfg Co Ltd
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Priority to JP2005183475A priority Critical patent/JP2007000066A/en
Publication of JP2007000066A publication Critical patent/JP2007000066A/en
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    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01C—PLANTING; SOWING; FERTILISING
    • A01C11/00—Transplanting machines
    • A01C11/02—Transplanting machines for seedlings

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  • Life Sciences & Earth Sciences (AREA)
  • Soil Sciences (AREA)
  • Environmental Sciences (AREA)
  • Transplanting Machines (AREA)

Abstract

<P>PROBLEM TO BE SOLVED: To solve problems that a lifting and lowering and an opening and closing mechanisms for seedling planting bodies in a seedling planting machine is large-sized and the structure thereof is an extremely complicated mechanism. <P>SOLUTION: The seedling planting machine is equipped with the seedling planting bodies 25 composed of two seedling planting tools 25F and 25R rotating around supporting shafts 33 and 34 for the seedling planting tools, performing opening and closing operation and mounted on the tip of a first lifting and lowering link 40a and the tip of a second lifting and lowering link 40b. The seedling transplanting machine is designed to vertically rotate the lifting and lowering links 40a and 40b and lift and lower the seedling planting bodies 25 by a driving mechanism A. Furthermore, the seedling planting machine is obtained as follows. A base of an operation arm 44 for performing the opening and closing operation of the two seedling planting tools 25F and 25R is freely rotatably mounted on a second shaft 40bS pivoting on the base of the lifting and lowering link 40b on the lower side and a follower 44c for moving the operation arm 44 in the direction to make the two seedling planting tools 25F and 25R perform the opening and closing operation in the set timing by receiving actions of a cam 46 provided in a rotating shaft 40aR is installed in the upper part of the operation arm 44. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

本発明は、圃場に苗を植付ける苗植付け体を備えた苗植機に関するものである。   The present invention relates to a seedling planting machine provided with a seedling planting body for planting seedlings in a field.

従来、下記特許文献１に示されるように、苗植付け体は後リンク支持アームに回動自在に取り付けられた後リンクと前リンク支持アームにて回動自在に支持された前リンクとにより上下動する構成となっており、後リンクは後リンク駆動アームにて駆動され、前リンクは前リンク駆動アームにて駆動される構成となっている。一方、後リンク支持アームと後リンクとの枢支軸部に開閉アームの基部を枢支し、開閉アームの先端に苗植付け体を開閉させる開閉ロッドを連結している。そして、後リンクと後リンク駆動アームとの枢支軸に開閉カムを配置し、開閉アームの中途部にカムフォロアとしてのローラが設けられた構成となっている。
特開２０００−２３６７１２号公報 Conventionally, as shown in Patent Document 1 below, the seedling planting body is moved up and down by a rear link rotatably attached to a rear link support arm and a front link rotatably supported by the front link support arm. The rear link is driven by the rear link drive arm, and the front link is driven by the front link drive arm. On the other hand, the base part of the opening / closing arm is pivotally supported on the pivot shaft part of the rear link support arm and the rear link, and the opening / closing rod for opening / closing the seedling planting body is connected to the tip of the opening / closing arm. An opening / closing cam is disposed on the pivot shaft of the rear link and the rear link driving arm, and a roller as a cam follower is provided in the middle of the opening / closing arm.
JP 2000-236712 A

上記特許文献１に記載される苗植機は、各々機体に揺動自在に支持された前後揺動アーム（後リンク支持アーム・前リンク支持アーム）に枢支された前後リンクに苗植付け体を装着し、該前後リンクを各々駆動アームで駆動するという非常に複雑な構成であり、然も、苗植付け体を開閉させる開閉アームの基部は後揺動リンクの先端部に枢支されているので、開閉アームが後揺動リンクにより前後移動する。そして、開閉カムを後リンクに設けて、開閉アームの中途部にカムフォロアとしてのローラを設けた構成となっているので、苗植付け体の開閉作動は安定し難く、機構も非常に複雑であった。また、開閉カムも大きなカム形状を必要とし、小型でコンパクトな構成ではなかった。   The seedling transplanter described in Patent Document 1 has a seedling planting body on a front / rear link pivotally supported by a front / rear swing arm (rear link support arm / front link support arm) that is swingably supported by each body. It is a very complicated structure that is mounted and the front and rear links are each driven by a drive arm, but the base of the open / close arm that opens and closes the seedling planting body is pivotally supported by the tip of the rear swing link The open / close arm is moved back and forth by the rear swing link. Since the opening / closing cam is provided in the rear link and the roller as a cam follower is provided in the middle of the opening / closing arm, the opening / closing operation of the seedling planting body is difficult to stabilize and the mechanism is also very complicated. . In addition, the open / close cam also requires a large cam shape and is not a compact and compact configuration.

本発明は、上記課題を解決するために、以下の技術的手段を講じたものである。
即ち、請求項１記載の発明は、機体に設けた第一軸４０ａＳに基部が回動自在に枢支された第一昇降リンク４０ａの先端部と該第一昇降リンク４０ａの下側で機体に設けた第二軸４０ｂＳに基部が回動自在に枢支された第二昇降リンク４０ｂの先端部とに、苗植付け具支持軸３３・３４回りに回動して開閉作動する２つの苗植付け具２５Ｆ・２５Ｒよりなる苗植付け体２５を装着し、駆動機構Ａにより第一昇降リンク４０ａ又は第二昇降リンク４０ｂを上下回動させて、苗植付け体２５を昇降する苗植機において、２つの苗植付け具２５Ｆ・２５Ｒを開閉作動させる作動アーム４４の基部を下側の昇降リンク４０ｂの基部を枢支している第二軸４０ｂＳに回動自在に装着し、機体に設けた回転軸４０ａＲに設けたカム４６の作用を受けて該作動アーム４４を設定したタイミングで２つの苗植付け具２５Ｆ・２５Ｒを開閉作動させる方向に移動させる従動体４４ｃを作動アーム４４の上部に設けた苗植機としたものである。 In order to solve the above-mentioned problems, the present invention takes the following technical means.
In other words, the invention according to claim 1 is the same as that of the first elevating link 40a whose base is pivotally supported by the first shaft 40aS provided on the airframe and the lower side of the first elevating link 40a. Two seedling planting tools that rotate around the seedling planting tool support shafts 33 and 34 to open and close the tip of the second lifting link 40b whose base is pivotally supported by the provided second shaft 40bS. Two seedlings are mounted on a seedling planting machine in which a seedling planting body 25 made of 25F and 25R is mounted and the first lifting link 40a or the second lifting link 40b is moved up and down by the drive mechanism A to move the seedling planting body 25 up and down. The base of the operating arm 44 that opens and closes the planting tools 25F and 25R is rotatably mounted on the second shaft 40bS that pivotally supports the base of the lower lift link 40b, and is provided on the rotary shaft 40aR provided on the machine body. Under the action of the cam 46 It is obtained by the two planting members 25F · 25R seedling planting machine a follower 44c to move in the direction of opening and closing is provided over the actuating arm 44 to a timing set the arm 44.

従って、機体に設けた第一軸４０ａＳに基部が回動自在に枢支された第一昇降リンク４０ａの先端部と該第一昇降リンク４０ａの下側で機体に設けた第二軸４０ｂＳに基部が回動自在に枢支された第二昇降リンク４０ｂの先端部とに、苗植付け具支持軸３３・３４回りに回動して開閉作動する２つの苗植付け具２５Ｆ・２５Ｒよりなる苗植付け体２５を装着し、駆動機構Ａにより第一昇降リンク４０ａ又は第二昇降リンク４０ｂを上下回動させて、苗植付け体２５を昇降する構成としたので、簡潔な構成で苗植付け体２５を昇降させることができて、長年に亘り故障の少ない良好な苗移植作業が行える。また、２つの苗植付け具２５Ｆ・２５Ｒを開閉作動させる作動アーム４４の基部を下側の昇降リンク４０ｂの基部を枢支している第二軸４０ｂＳに回動自在に装着し、機体に設けた回転軸４０ａＲに設けたカム４６の作用を受けて該作動アーム４４を設定したタイミングで２つの苗植付け具２５Ｆ・２５Ｒを開閉作動させる方向に移動させる従動体４４ｃを作動アーム４４の上部に設けたので、作動アーム４４の基部枢支部から従動体４４ｃまでの距離が長く取れから、カム４６は小さい形状で作動アーム４４を大きく作動させることができるので、カム４６を小さい形状にして苗植付け体２５の開閉作動機構全体の構成をコンパクトにできる。   Therefore, the base of the first shaft 40bS provided on the fuselage below the tip of the first lift link 40a whose base is pivotally supported by the first shaft 40aS provided on the fuselage and the lower side of the first lift link 40a. A seedling planting body composed of two seedling planting tools 25F and 25R that rotate around the seedling planting tool support shafts 33 and 34 to open and close the tip of the second elevating link 40b pivotally supported. 25, and the first raising / lowering link 40a or the second raising / lowering link 40b is rotated up and down by the drive mechanism A to raise and lower the seedling planting body 25. Therefore, the seedling planting body 25 is raised and lowered with a simple configuration. It is possible to perform a good seedling transplanting operation with few failures over many years. Further, the base part of the operating arm 44 for opening and closing the two seedling planting tools 25F and 25R is rotatably mounted on the second shaft 40bS pivotally supporting the base part of the lower lifting link 40b, and is provided in the airframe. A follower 44c that moves the two seedling planting tools 25F and 25R in a direction to open and close at the timing when the operating arm 44 is set by receiving the action of the cam 46 provided on the rotating shaft 40aR is provided on the upper part of the operating arm 44. Therefore, since the distance from the base pivot portion of the operating arm 44 to the driven body 44c can be increased, the cam 46 can be operated with a small shape and the cam 46 can be operated with a small shape. The overall structure of the opening / closing operation mechanism can be made compact.

よって、苗植付け体２５の昇降及び開閉機構がコンパクトで簡潔な構成となり、小型軽量の移植機を得ることができる。
請求項２記載の発明は、第一昇降リンク４０ａの先端部と第二昇降リンク４０ｂの先端部とに連結部材３９を設けて、該連結部材３９の左右両側に各々苗植付け体２５を装着した請求項１記載の苗植機としたものである。 Therefore, the raising / lowering and opening / closing mechanism of the seedling planting body 25 has a compact and simple configuration, and a small and light transplanter can be obtained.
In the invention according to claim 2, the connecting member 39 is provided at the front end portion of the first elevating link 40a and the front end portion of the second elevating link 40b, and the seedling planting bodies 25 are respectively mounted on the left and right sides of the connecting member 39. A seedling transplanter according to claim 1 is provided.

従って、請求項１記載の発明の作用に加えて、第一昇降リンク４０ａの先端部と第二昇降リンク４０ｂの先端部とに連結部材３９を設けて、該連結部材３９の左右両側に各々苗植付け体２５を装着したので、一つの昇降機構で左右２つの苗植付け体２５をバランス良く昇降作動させることができ、簡潔な構成で左右２つの苗植付け体２５を良好に昇降作動させることができる。   Therefore, in addition to the operation of the first aspect of the invention, the connecting member 39 is provided at the tip of the first lifting link 40a and the tip of the second lifting link 40b. Since the planting body 25 is mounted, the two right and left seedling planting bodies 25 can be lifted and lowered with a single lifting mechanism, and the left and right two seedling planting bodies 25 can be lifted and lowered with a simple configuration. .

請求項３記載の発明は、連結部材３９の左右両側に装着した苗植付け体２５の各々の苗植付け具２５Ｆ・２５Ｒを長さ調節可能な左右連結ロッド４５を介して作動アーム４４に連結した請求項２記載の苗植機としたものである。   In the invention according to claim 3, the seedling planting tools 25F and 25R of the seedling planting body 25 mounted on both the left and right sides of the connecting member 39 are connected to the operating arm 44 via the left and right connecting rods 45 capable of adjusting the length. Item 2 is a seedling transplanter.

従って、請求項２記載の発明の作用に加えて、連結部材３９の左右両側に装着した苗植付け体２５の各々の苗植付け具２５Ｆ・２５Ｒを長さ調節可能な左右連結ロッド４５を介して作動アーム４４に連結したので、一つの昇降及び開閉機構で左右２つの苗植付け体２５をバランス良く昇降作動及び開閉作動させることができ、簡潔な構成で左右２つの苗植付け体２５を良好に昇降作動及び開閉作動させることができる。また、左右連結ロッド４５を長さ調節することで、左右の苗植付け体２５の開閉タイミングを各々各別に調節できるので、良好な苗の移植作業が行える。   Therefore, in addition to the operation of the invention described in claim 2, the seedling planting tools 25F and 25R of the seedling planting body 25 mounted on the left and right sides of the connecting member 39 are actuated via the left and right connecting rods 45 capable of adjusting the length. Since it is connected to the arm 44, the right and left two seedling planting bodies 25 can be lifted and lowered and opened and closed in a balanced manner with a single lifting and closing mechanism, and the left and right two seedling planting bodies 25 can be lifted and lowered with a simple structure. And can be opened and closed. Further, by adjusting the length of the left and right connecting rods 45, the open / close timing of the left and right seedling planting bodies 25 can be adjusted individually, so that a good seedling transplanting operation can be performed.

この発明によると、苗植付け体２５の昇降及び開閉機構をコンパクトで簡潔な構成にすることができて、苗植付け性能の優れた小型軽量の移植機を得ることができる。   According to this invention, the raising and lowering and opening / closing mechanism of the seedling planting body 25 can be made compact and simple, and a small and lightweight transplanter with excellent seedling planting performance can be obtained.

この発明の一実施例としての苗移植機を以下に説明する。尚、以下の説明では、操縦ハンドル２を配置した側を後とし、その反対側、即ちエンジン５を配置した側を前とする。そして、機体後部において機体前部側に向って立つ作業者の右手側を右とし、左手側を左とする。   A seedling transplanter as an embodiment of the present invention will be described below. In the following description, the side on which the steering handle 2 is disposed is the rear, and the opposite side, that is, the side on which the engine 5 is disposed is the front. Then, the right hand side of the worker standing toward the front side of the machine body at the rear part of the machine body is set to the right, and the left hand side is set to the left.

本例の苗移植機は、機体を前進走行可能とする走行車体１と、該走行車体１の後部に設けた歩行操縦用の操縦ハンドル２と、圃場に苗を植付ける苗植付装置３と、該苗植付装置３に苗を供給する苗供給装置４を備えた構成としている。   The seedling transplanter of this example includes a traveling vehicle body 1 that allows the aircraft to travel forward, a steering handle 2 for walking operation provided at the rear of the traveling vehicle body 1, a seedling planting device 3 that plants seedlings in a farm field, The seedling planting apparatus 3 includes a seedling supply apparatus 4 that supplies seedlings.

走行車体１は、図示例では、エンジン５と、該エンジン５の動力が伝達されて駆動回転する左右一対の駆動車輪である後輪６，６と、該後輪６，６の前方に転動自在に支持した左右一対の前輪７，７とを備えたものとしている。   In the illustrated example, the traveling vehicle body 1 rolls forward in front of the engine 5, rear wheels 6 and 6 that are a pair of left and right drive wheels that are driven and rotated by transmission of the power of the engine 5, and the rear wheels 6 and 6. A pair of left and right front wheels 7, 7 that are freely supported are provided.

エンジン５の後部には、ミッションケース８を配置し、そのミッションケース８は、その左側部からエンジン５の左側方に延びるケース部分を有し、これがエンジン５の左側部と連結している。このケース部分にエンジン５の出力軸が入り込んでミッションケース８内の伝動機構に動力が伝達する構成となっている。ミッションケース８の左右両側部には、前後に長い走行用の伝動ケース９，９の前部を回動自在に取り付けている。   A mission case 8 is disposed at the rear of the engine 5, and the mission case 8 has a case portion extending from the left side of the engine 5 to the left side of the engine 5, and this is connected to the left side of the engine 5. The output shaft of the engine 5 enters the case portion and the power is transmitted to the transmission mechanism in the transmission case 8. On the left and right sides of the transmission case 8, the front portions of the transmission cases 9, 9 that are long in the front-rear direction are rotatably attached.

具体的には、走行用の伝動ケース９，９の前部の機体内側部に、該伝動ケース９，９と一体回転可能に設けたアクスルケース９ａ，９ａを設け、このアクスルケース９ａ，９ａをミッションケース８の左右両側部に回動自在に取付けて、走行用の伝動ケース９，９をミッションケース８の左右両側部に対して回動自在に取付けている。そして、この走行用の伝動ケース９，９の後部側方に突出させた車軸１０、１０に後輪６，６を装着している。   Specifically, axle cases 9a and 9a provided so as to be rotatable integrally with the transmission cases 9 and 9 are provided on the inner side of the front body of the traveling transmission cases 9 and 9, and the axle cases 9a and 9a are provided. The transmission case 9, 9 is attached to the left and right sides of the mission case 8 so as to be rotatable. The rear wheels 6 and 6 are mounted on the axles 10 and 10 that protrude toward the rear side of the traveling transmission cases 9 and 9.

伝動ケース９，９の前部の回動軸心Ｘ位置には、ミッションケース８から左右両外側方に延出させた車輪駆動軸の先端が入り込んで、ミッションケース８内の走行部系変速伝動部を経た走行用の動力が伝動ケース９，９内の伝動機構に伝達している。そして、走行用の動力は伝動ケース９，９内の伝動機構を介して、伝動ケース９，９の後端側の車軸１０，１０に伝動し、後輪６，６が駆動回転するようになっている。なお、アクスルケース９ａ，９ａは、畝幅に対応して左右に伸縮調節可能に設けている。また、アクスルケース９ａ，９ａを支持するために、アクスルケース９ａ，９ａと略平行する状態で支持フレーム９ｂ、９ｂをミッションケース８に固着していて、その支持フレーム９ｂ、９ｂの外端部に固着した支持プレート９ｃ、９ｃでアクスルケース９ａ，９ａの外側部を回動自在に支持している。   The tip of the wheel drive shaft extended from the transmission case 8 to the left and right outwards enters the rotational axis X position of the front part of the transmission cases 9, 9. The traveling power passing through the section is transmitted to the transmission mechanism in the transmission cases 9 and 9. The traveling power is transmitted to the axles 10 and 10 on the rear end side of the transmission cases 9 and 9 via the transmission mechanism in the transmission cases 9 and 9, and the rear wheels 6 and 6 are driven to rotate. ing. Axle cases 9a and 9a are provided so that they can be expanded and contracted to the left and right according to the width of the collar. Further, in order to support the axle cases 9a and 9a, the support frames 9b and 9b are fixed to the transmission case 8 in a state of being substantially parallel to the axle cases 9a and 9a, and are attached to the outer ends of the support frames 9b and 9b. The outer portions of the axle cases 9a, 9a are rotatably supported by the fixed support plates 9c, 9c.

また、走行用の伝動ケース９，９には、該伝動ケース９，９の前部側を回動支点として後輪６，６を上下させるよう上下回動する駆動手段が連結している。具体的には、伝動ケース９，９のミッションケース８への取付部には、上方に延びるアーム１１，１１を一体的に取り付けていて、これがミッションケース８に固定された昇降用油圧シリンダ１２のピストンロッド先端に取り付けた連結体１３の左右両側部と連結している。左右一方側（右側）は、ロッド１４で連結し、他方側（左側）は、機体の傾斜に応じて伸縮作動可能な左右水平制御用油圧シリンダ１５で連結している。   The traveling transmission cases 9 and 9 are connected to driving means for rotating up and down so that the rear wheels 6 and 6 are moved up and down using the front side of the transmission cases 9 and 9 as a rotation fulcrum. Specifically, the upper and lower arms 11, 11 are integrally attached to the attachment portions of the transmission cases 9, 9 to the transmission case 8, and the lifting hydraulic cylinder 12 is fixed to the transmission case 8. It is connected to the left and right sides of the connecting body 13 attached to the tip of the piston rod. The left and right sides (right side) are connected by a rod 14, and the other side (left side) is connected by a left / right horizontal control hydraulic cylinder 15 that can be expanded and contracted according to the inclination of the airframe.

昇降用油圧シリンダ１２が作動してそのピストンロッドが機体後方に突出すると、左右の前記アーム１１，１１は後方に回動し、これに伴い伝動ケース９，９が下方に回動して、機体が上昇する。反対に、昇降用油圧シリンダ１２のピストンロッドが機体前方に移動してシリンダ内に引っ込むと、左右の前記アーム１１，１１は前方に回動し、これに伴い伝動ケース９，９が上方に回動して、機体が下降する。この昇降用油圧シリンダ１２は、畝面に接地して機体と畝面との上下間隔の変動にともなって動作するセンサーＳによって作動する。センサーＳの動作は機体に対する畝上面高さを検出する動作となり、そのセンサーＳの検出動作に基いて機体を畝上面高さに対して設定高さになるよう昇降用油圧シリンダ１２が作動するよう構成している。また、操縦ハンドル２近傍に配置した操作具Ｌの人為操作によって機体を上昇或は下降させるよう昇降用油圧シリンダ１２が作動する構成ともしている。   When the lifting / lowering hydraulic cylinder 12 is actuated and the piston rod projects rearward, the left and right arms 11 and 11 are rotated rearward, and accordingly the transmission cases 9 and 9 are rotated downward, and the airframe. Rises. On the other hand, when the piston rod of the lifting hydraulic cylinder 12 moves forward and retracts into the cylinder, the left and right arms 11 and 11 rotate forward, and the transmission cases 9 and 9 rotate upward accordingly. The aircraft moves down. The lifting hydraulic cylinder 12 is actuated by a sensor S that contacts the heel surface and operates in accordance with a change in the vertical distance between the airframe and the heel surface. The operation of the sensor S is an operation for detecting the height of the heel surface relative to the airframe. Based on the detection operation of the sensor S, the elevating hydraulic cylinder 12 is operated so that the airframe is at a set height with respect to the height of the heel surface. It is composed. Further, the lifting hydraulic cylinder 12 is operated so as to raise or lower the airframe by human operation of the operating tool L arranged in the vicinity of the steering handle 2.

また、前記左右水平制御用油圧シリンダ１５が伸縮作動すると、その左右水平制御用油圧シリンダ１５と連結する左側のアーム１１が回動して、左側の後輪６と右側の後輪６を互いに異なる高さにし、機体を左右に傾斜させる。この左右水平制御用油圧シリンダ１５は、左右水平に対する機体の左右傾斜を検出するセンサの検出結果に基づいて機体を左右水平になるように作動するよう構成している。   Further, when the left / right horizontal control hydraulic cylinder 15 is extended and contracted, the left arm 11 connected to the left / right horizontal control hydraulic cylinder 15 is rotated to make the left rear wheel 6 and the right rear wheel 6 different from each other. Raise the aircraft to the left and right. The left / right horizontal control hydraulic cylinder 15 is configured to operate so that the airframe is horizontally horizontal based on a detection result of a sensor that detects the right / left inclination of the airframe relative to the left / right horizontal.

前記左右前輪７，７は、エンジン５下方の左右中央位置で前後方向の軸心周りに回動自在に取り付けた横フレーム１６の左右両側部に、上下に長い縦フレーム１６ａ，１６ａを取付け、その下端部側方に固着した車軸１７，１７に回転自在に取り付けている。従って、左右前輪７，７は、機体の左右中央の前後方向の軸心Ｙ周りにローリング動自在となっている。横フレーム１６の左右両側部に対して縦フレーム１６ａ，１６ａを上下調節可能に設けていて、前輪７，７の高さ調節をすることができるようになっている。   The left and right front wheels 7 and 7 are provided with vertically long vertical frames 16a and 16a on left and right side portions of a horizontal frame 16 which is rotatably mounted around an axial center in the front-rear direction at a left and right central position below the engine 5, It is rotatably attached to axles 17 and 17 fixed to the side of the lower end. Accordingly, the left and right front wheels 7 and 7 are capable of rolling around the axial center Y in the front-rear direction at the center of the left and right of the aircraft. Vertical frames 16a and 16a are provided on the left and right sides of the horizontal frame 16 so as to be vertically adjustable so that the height of the front wheels 7 and 7 can be adjusted.

前記操縦ハンドル２は、機体後部に設けていて、後輪６，６の車軸１０，１０より機体後方に位置している。具体的には、ミッションケース８に前端部を固定した機体フレーム２ｂの後端部に取り付けている。機体フレーム２ｂは、機体の左右中央から右側に偏った位置に配置されて後方に延び、また、前後中間部から斜め後上方に延びている。操縦ハンドル２は、機体フレーム２ｂの後端部から左右に後方に延びてその各後端部を操縦ハンドル２のグリップ部２ａ，２ａとしている。操縦ハンドル２の左右のグリップ部２ａ，２ａは、作業者がそのグリップ部２ａ，２ａを楽に手で握れるように適宜高さに設定する。なお、図例ではグリップ部２ａ，２ａを左右に分かれた構成としているが、操縦ハンドル２の左右の後端部を互いに左右に連結してその連結部分をグリップ部としても良い。   The steering handle 2 is provided at the rear of the fuselage, and is located behind the axles 10 and 10 of the rear wheels 6 and 6. Specifically, it is attached to the rear end portion of the body frame 2b with the front end portion fixed to the mission case 8. The airframe frame 2b is disposed at a position deviated from the right and left center of the airframe to the right side and extends rearward, and extends obliquely rearward and upward from the front and rear intermediate portion. The steering handle 2 extends rearward from the rear end portion of the body frame 2b to the left and right, and the rear end portions thereof serve as grip portions 2a and 2a of the steering handle 2. The left and right grip portions 2a, 2a of the steering handle 2 are set to an appropriate height so that the operator can easily grip the grip portions 2a, 2a with hands. In the example shown in the figure, the grip portions 2a, 2a are divided into left and right, but the left and right rear end portions of the steering handle 2 may be connected to each other left and right, and the connecting portion may be used as the grip portion.

尚、上記走行車体１は、接地して駆動回転する走行駆動部を、前後車輪を備えた四輪式の走行駆動部の構成としたものであるが、クローラー式の走行駆動部の構成とすることもできる。   In the traveling vehicle body 1, the traveling drive unit that is grounded and rotated is configured as a four-wheel traveling drive unit including front and rear wheels, but is configured as a crawler traveling drive unit. You can also.

苗植付装置３は、先端が下方に向かうくちばし状の苗植付け体２５と、該苗植付け体２５の下端部が圃場面より上方となる位置と圃場面より下方となる位置とに苗植付け体２５を上下動させる上下動機構２６と、くちばし状の苗植付け体２５の下端部が閉じて上方から苗を受け入れて内側に苗を収容可能する閉状態と苗植付け体２５の下端部が前後に開いて内側に収容した苗を下方に放出可能する開状態とに苗植付け体２５を開閉する開閉機構２７とを備え、苗供給装置４は、苗を上方から受け入れて内側に苗を収容する複数の苗収容体２９と、該苗収容体２９を苗植付け体２５の上方を通過するように周回移動させる移動機構３０と、苗植付け体２５の上方位置で苗収容体２９の底部を開放して内側に収容した苗を落下させて苗植付け体２５に苗を供給する開放機構３１を備えた苗供給装置４を備える。   The seedling planting device 3 has a beak-shaped seedling planting body 25 whose tip is directed downward, and a seedling planting body at a position where the lower end of the seedling planting body 25 is above the field scene and a position below the field scene. A vertical movement mechanism 26 that moves the 25 up and down; a closed state in which the lower end portion of the beak-like seedling planting body 25 is closed and a seedling is received from above and a seedling can be accommodated inside; An open / close mechanism 27 that opens and closes the seedling planting body 25 in an open state in which the seedling that is opened and accommodated inside can be released downward, and the seedling supply device 4 receives a seedling from above and accommodates the seedling inside. The seedling container 29, the moving mechanism 30 that moves the seedling container 29 so as to pass above the seedling planting body 25, and the bottom of the seedling container 29 is opened above the seedling planting body 25. Seedling planting body 2 by dropping seedlings housed inside Comprising a seedling supply device 4 provided with a release mechanism 31 for supplying seedlings.

苗植付装置３は、苗植付け体２５を左右に設定間隔で複数体並べて配備した複数条植の構成としている。本例では、苗植付け体２５を左右に設定間隔で四体並べて配備した四条植えの構成としている。   The seedling planting device 3 has a configuration of a plurality of strips in which a plurality of seedling planting bodies 25 are arranged side by side at set intervals. In this example, it is set as the structure of the four row planting which arrange | positioned the seedling planting body 25 side by side with the set space | interval at a set space | interval.

四体の苗植付け体２５…は、機体フレーム２ｂに下部を固定した取付部材３２の上部に装着した伝動ケース２８の左右両側部に設けた上下動機構２６，２６に二体づつ装着している。   The four seedling planting bodies 25 are mounted on the vertical movement mechanisms 26 and 26 provided on both left and right sides of the transmission case 28 mounted on the upper part of the mounting member 32 whose lower part is fixed to the body frame 2b. .

先端が下方に向いたくちばし状の苗植付け体２５…の前側苗植付け具２５F…の上部で後側にのびる左右のアーム部２５Fａ，２５Ｆａ…の後端部を後側の苗植付け具支持軸３４に回動自在に取付け、後側苗植付け具２５Ｒ…の上部で前側にのびる左右のアーム部２５Ｒａ，２５Ｒａ…の前端部を前側の苗植付け具支持軸３３に回動自在に取付け、前側苗植付け具２５F…のアーム部２５Fａ，２５Ｆａ…と後側苗植付け具２５Ｒ…のアーム部２５Ｒａ，２５Ｒａ…のそれぞれ前後中間部では、一方側のアーム部に設けた横方向のピン２５ａ、２５ａ…を他方側のアーム部に設けた左右方向の長孔２５ｂ，２５ｂ…に係合させている。前後の苗植付け具支持軸３３，３４の左右両端部は、連結部材３５，３５で連結している。   The rear ends of the left and right arm portions 25Fa, 25Fa ... extending rearward at the upper part of the front seedling planting tool 25F ... of the beak-like seedling planting body 25 ... whose tip is directed downward are rear seedling planting tool support shafts 34. The front ends of the left and right arm portions 25Ra, 25Ra extending to the front at the upper part of the rear seedling planting tool 25R are rotatably attached to the front seedling planting tool support shaft 33, and the front seedling planting is performed. In the front and rear intermediate portions of the arm portions 25Fa, 25Fa ... of the tool 25F ... and the arm portions 25Ra, 25Ra ... of the rear seedling planting tool 25R ..., the lateral pins 25a, 25a ... provided on the one arm portion are connected to the other. .. Are engaged in the left and right elongated holes 25b, 25b... Provided in the side arm portion. The left and right ends of the front and rear seedling planting tool support shafts 33 and 34 are connected by connecting members 35 and 35.

そして、前後の苗植付け具支持軸３３，３４の左右中間部はそれぞれ苗ガイド連結部材３６，３６を介して、苗を苗植付け体２５内に案内する筒状の苗ガイド３７を固定している。更に、左右の苗ガイド３７，３７を固定している左右の苗ガイド連結部材３６，３６には、その左右間側に連結部材３８、３８を着脱自在に且つ一体的に装着していて、その連結部材３８、３８を介して、左右の苗ガイド３７，３７の左右間に配置した連結部材３９，３９と連結している。   The left and right intermediate portions of the front and rear seedling planting tool support shafts 33 and 34 are fixed with cylindrical seedling guides 37 for guiding the seedlings into the seedling planting body 25 through seedling guide connecting members 36 and 36, respectively. . Furthermore, the left and right seedling guide connecting members 36 and 36 that fix the left and right seedling guides 37 and 37 are provided with connecting members 38 and 38 that are detachably and integrally mounted between the left and right sides. It connects with the connection members 39 and 39 arrange | positioned between the left and right of the right and left seedling guides 37 and 37 via the connection members 38 and 38.

その連結部材３９、３９は、上下動機構２６の上下の昇降リンク４０ａ，４０ｂの各先端部を上下に連結している。後側苗植付け具２５Ｒ…のアーム部２５Ｒａ，２５Ｒａが前側の苗植付け具支持軸３３回りに上方に回動すると、前記ピン２５ａ、２５ａによる連結によって前側苗植付け具２５Ｆ…のアーム部２５Ｆａ，２５Fａも連動して上方に回動し、よって、前側苗植付け具２５F…は、後側の苗植付け具支持軸３４回りの回動によって前方に移動し、後側苗植付け具２５Ｒ…は、前側の苗植付け具支持軸３３回りの回動によって後方に移動し、よって、苗植付け体２５…の下部側が前後に開いて下方に開放状態となる。また、逆の動作によって、前後に開いた苗植付け体２５…の下部側は閉じる。   The connecting members 39, 39 connect the tip ends of the upper and lower lift links 40 a, 40 b of the vertical movement mechanism 26 vertically. When the arm portions 25Ra, 25Ra of the rear seedling planting tools 25R ... are turned upward around the front seedling planting tool support shaft 33, the arms 25Fa, 25Fa of the front seedling planting tools 25F ... are connected by the pins 25a, 25a. And the front seedling planting tool 25F... Moves forward by the rotation around the rear seedling planting tool support shaft 34, and the rear seedling planting tool 25R. By moving around the seedling planting support shaft 33, it moves rearward, so that the lower side of the seedling planting bodies 25 ... opens back and forth and opens downward. Moreover, the lower part side of the seedling planting body 25 ... opened back and forth is closed by the reverse operation.

前記苗ガイド３７は、苗供給装置４から供給された苗を苗植付け体２５内に案内する合成樹脂にて形成された筒状体であり、上部は、苗供給装置４の苗落下部下方に向ってのびて上部ほど開口面積が広がっているテーパー状の上部ガイド３７ａを一体に形成している。これにより、苗植付け体が苗供給装置４の苗落下部下方からずれて位置していても、苗供給装置４から落下供給される苗を適確に苗植付け体２５内に供給することができる。   The seedling guide 37 is a cylindrical body formed of a synthetic resin that guides the seedling supplied from the seedling supply device 4 into the seedling planting body 25, and the upper portion is below the seedling dropping portion of the seedling supply device 4. A tapered upper guide 37a is formed integrally with the opening area extending toward the upper part. Thereby, even if the seedling planting body is located at a position shifted from the lower part of the seedling dropping part of the seedling feeding device 4, the seedling dropped and fed from the seedling feeding device 4 can be accurately fed into the seedling planting body 25. .

苗植付け体２５…の上下動機構２６は、伝動ケース２８の左右両側部に設けている。具体的には、前記昇降リンク装置２の後端部の連結軸２１に回動自在に装着した植付部フレーム１２ａ上部に固着した伝動ケース２８の左右側方に突出させた軸に前部を上下回動自在に装着し後部を苗植付け体２５…に連結した上側と下側の昇降リンク４０ａ，４０ｂと、伝動ケース２８の側部から突出させた駆動回転する駆動軸４１と、該駆動軸４１の先端部に一端側を一体回転するように取付けた駆動アーム４２と、該駆動アーム４２の回転外周側端部と前記上側の昇降リンク４０ａとに回動自在に連結する連動アーム４２ａとで構成している。この駆動軸４１と駆動アーム４２と連動アーム４２ａとで駆動機構Ａが構成されている。   The vertical movement mechanisms 26 of the seedling planting bodies 25 are provided on the left and right sides of the transmission case 28. Specifically, the front part is attached to the shaft protruding to the left and right sides of the transmission case 28 fixed to the upper part of the planting part frame 12a that is rotatably attached to the connecting shaft 21 at the rear end part of the lifting link device 2. Upper and lower elevating links 40a and 40b that are mounted so as to be pivotable up and down and have rear portions connected to the seedling planting body 25, a drive shaft 41 that rotates from the side of the transmission case 28, and a drive shaft that rotates. A drive arm 42 attached to one end side of the front end portion 41 so as to rotate integrally therewith, and an interlocking arm 42a rotatably connected to the rotary outer peripheral end portion of the drive arm 42 and the upper lifting link 40a. It is composed. The drive shaft A, the drive arm 42, and the interlocking arm 42a constitute the drive mechanism A.

そして、上側と下側の昇降リンク４０ａ，４０ｂの各後端部を前記苗植付け具支持軸３３，３４の左右中間部付近に取付けた連結部材３９に回動自在に取付け、上側と下側の昇降リンク４０ａ，４０ｂと伝動ケース２８と連結部材３９とでリンク機構を形成するように設けている。従って、駆動軸４１の回転により駆動アーム４２が駆動回転すると、前記昇降リンク４０ａ，４０ｂが伝動ケース２８の左右側部に設けた二つの軸４０ａＳ，４０ｂＳを回動中心に上下動して、左右の苗植付け体２５…が上下動する。この上下動の上昇位置では苗植付け体２５の下端部が圃場面より上方に位置し、下降位置では苗植付け体２５の下端部が圃場面より下方に位置する。   Then, the rear end portions of the upper and lower lifting links 40a, 40b are rotatably attached to a connecting member 39 attached in the vicinity of the left and right intermediate portions of the seedling planting tool support shafts 33, 34, and the upper and lower lifting links 40a, 40b The elevating links 40a and 40b, the transmission case 28, and the connecting member 39 are provided so as to form a link mechanism. Accordingly, when the drive arm 42 is driven and rotated by the rotation of the drive shaft 41, the elevating links 40a and 40b move up and down about the two shafts 40aS and 40bS provided on the left and right side portions of the transmission case 28, and the left and right The seedling planting body 25 ... moves up and down. The lower end portion of the seedling planting body 25 is positioned above the field scene at the ascending position of the vertical movement, and the lower end portion of the seedling planting body 25 is positioned below the field scene at the descending position.

また、この苗植機では、苗植付け体２５…を昇降する上下動機構２６を、第一軸４０ａＳ回りに昇降駆動される第一昇降リンク４０ａと、該第一昇降リンク４０ａの下側で第二軸４０ｂＳ回りに昇降自在に設けた第二昇降リンク４０ｂと、該第一昇降リンク４０ａ及び第二昇降リンク４０ｂの各先端部を連結する連結部材３９とで構成し、該連結部材３９と苗植付け体２５…を連結して苗植付け体２５…を昇降する構成とし、前記第一軸４０ａＳを、伝動ケース２８内の伝動機構を介して伝達された動力により回転駆動される回転軸４０ａＲの先端部に偏芯状態で形成し、該回転軸４０ａＲの回転によって回転軸４０ａＲの軸芯を中心として偏芯量を半径として回転駆動される構成とし、前記第一昇降リンク４０ａの昇降駆動中に前記回転軸４０ａＲが回転駆動することにより苗植付け体２５をその昇降動中に前後に傾けるように構成している。そして、苗植付け体２５…の昇降軌跡上部側での上昇時の姿勢を、直立姿勢に対して下部が上部より後側になる前倒姿勢となるように設定している。また、苗植付け体２５…の下降時の姿勢を直立姿勢に対して下部が上部より前側になった後倒姿勢となるように設定し、下降下端位置で後倒姿勢から前倒姿勢に姿勢変更するように設け、前記苗植付け体２５…の上昇時の姿勢を直立姿勢に対して下部が上部より後側になった前倒姿勢となるように設定している。   Further, in this seedling planting machine, the vertical movement mechanism 26 that lifts and lowers the seedling planting bodies 25... Is driven below the first lifting link 40a and the first lifting link 40a that is driven up and down around the first shaft 40aS. The second elevating link 40b provided so as to be movable up and down around the biaxial axis 40bS, and a connecting member 39 for connecting the first elevating link 40a and the respective leading ends of the second elevating link 40b, and the connecting member 39 and the seedling The planted bodies 25 are connected to move the seedling planted bodies 25 up and down, and the first shaft 40aS is rotated at the tip of the rotating shaft 40aR driven by the power transmitted through the transmission mechanism in the transmission case 28. The shaft is formed in an eccentric state, and is configured to be rotationally driven around the axis of the rotation shaft 40aR as a radius by the rotation of the rotation shaft 40aR, and during the lifting drive of the first lifting link 40a Axis of rotation 0aR is configured to tilt back and forth planting body 25 during its lifting movement by the rotatably driven. And the attitude | position at the time of the raising of the raising / lowering locus | trajectory upper part of the seedling planting body 25 ... is set so that it may become a forward-facing attitude | position with a lower part rearward from an upper part with respect to an upright attitude | position. Moreover, the posture when the seedling planting body 25 is lowered is set to be a backward posture with the lower portion being forward of the upper portion with respect to the upright posture, and the posture is changed from the backward posture to the forward posture at the lower end position. The seedling planting body 25 is set so that the posture when the seedling planting body 25 is ascending is a forward-facing posture in which the lower portion is rearward of the upper portion with respect to the upright posture.

苗植付け体２５…の開閉機構２７は、後側苗植付け具２５Ｒ…の上部で後側にのびる開閉用アーム部２５Ｒｂ…の先端部を各苗植付け体２５…に設け、一方、下側の昇降リンク４０ｂの基部を枢着している軸に回動自在に取付けた作動アーム４４を設け、この作動アーム４４を上側の昇降リンク４０ａの基部を前側にて回避するように側面視で逆Ｌ字状に形成し、作動アーム４４の後端部と連結部材３９に基部が枢支された後部揺動アーム４４ａの中途部とを連結棒４４ｂにて連結し、そして、この後部揺動アーム４４ａの先端部を開閉用アーム部２５Ｒｂ…に長さ調節可能な連結ロッド４５で連結している。   The open / close mechanism 27 of the seedling planting body 25 is provided with a tip of an opening / closing arm 25Rb extending to the rear at the upper part of the rear seedling planting tool 25R, while the lower raising / lowering unit 25 ... An operating arm 44 rotatably attached to a shaft pivotally attached to the base of the link 40b is provided, and this operating arm 44 is reverse L-shaped in side view so as to avoid the base of the upper lifting link 40a on the front side. The rear end of the actuating arm 44 and the middle part of the rear swing arm 44a whose base is pivotally supported by the connecting member 39 are connected by a connecting rod 44b, and the rear swing arm 44a The distal end portion is connected to the opening / closing arm portion 25Rb through a connecting rod 45 whose length can be adjusted.

一方、作動アーム４４には従動体である従動ローラ４４ｃが回転自在に設けられており、駆動軸４１と同一回転をする回転軸４０ａＲに一体回転するように設けたカム４６の作用を受けて、作動アーム４４は前方に設定したタイミングで移動するようにして構成している。これにより、駆動軸４１が駆動回転して苗植付け体２５…が上下動すると、作動アーム４４も苗植付け体２５…と共に上下動し、そして、苗植付け体２５…の下降下端位置に達すると、カム４６の作用位置の変化により作動アーム４４が前方に回動して連結棒４４ｂを前方に移動させ、後部揺動アーム４４ａを前方に回動させて開閉用アーム部２５Ｒｂ…を前方上方に作動させるので、後側苗植付け具２５Ｒ…が前側の苗植付け具支持軸３３回りに回動して後方に移動し、また、これに連動して前側苗植付け具２５Ｆ…が後側の苗植付け具支持軸３４回りに回動して前方に移動して、苗植付け体２５…の下部側が前後に開いて下方に開放状態となる。そして、苗植付け体２５…が上昇してカム４６の作用位置の変化により作動アーム４４が元の位置に戻ると、前後に開いた苗植付け体２５…の下部側が閉じる。   On the other hand, a follower roller 44c, which is a follower, is rotatably provided on the operating arm 44. The actuating arm 44 receives the action of a cam 46 provided to rotate integrally with a rotating shaft 40aR that rotates in the same direction as the drive shaft 41. The operating arm 44 is configured to move at a timing set forward. As a result, when the drive shaft 41 is driven to rotate and the seedling planting bodies 25 move up and down, the operating arm 44 also moves up and down together with the seedling planting bodies 25 and reaches the descending lower end position of the seedling planting bodies 25. Due to the change in the operation position of the cam 46, the operating arm 44 is rotated forward to move the connecting rod 44b forward, and the rear swing arm 44a is rotated forward to operate the opening / closing arm portion 25Rb. Therefore, the rear seedling planting tool 25R rotates around the front seedling planting tool support shaft 33 and moves rearward, and in conjunction with this, the front seedling planting tool 25F. It rotates around the support shaft 34 and moves forward, so that the lower side of the seedling planting body 25. Then, when the seedling planting bodies 25 are raised and the operating arm 44 returns to the original position due to a change in the operation position of the cam 46, the lower side of the seedling planting bodies 25 that are opened back and forth is closed.

このように、苗植付け体２５…を昇降作動させる上下昇降リンク４０ａ・４０ｂの下側の昇降リンク４０ｂの基部を枢着している軸に苗植付け体２５の開閉作動をさせる作動アーム４４を設けているので、作動アーム４４を設ける為の特別な軸が不要となって安価で簡潔な構成となる。然も、作動アーム４４を上側の昇降リンク４０ａの基部を回避するように側面視で逆Ｌ字状に形成して、作動アーム４４の上部に従動ローラ（従動カム）４４ｃを設けて上側の昇降リンク４０ａの基部を枢着している軸部に設けたカム４６の作用で作動アーム４４が作動する構成としたので、作動アーム４４の回動基部から従動ローラ（従動カム）４４ｃまでの距離が長く取れる為カム４６は小さい形状で作動アーム４４を大きく作動させることができるので、カム４６を小さい形状にして苗植付け体２５の開閉作動機構全体の構成をコンパクトにできる。尚、作動アーム４４と連結棒４４ｂと後部揺動アーム４４ａを上下昇降リンク４０ａ・４０ｂの外周に沿うような配置構成にし、然も、カム４６及び従動ローラ（従動カム）４４ｃを作動アーム４４の内側に配置した構成としたので、これらが非常にコンパクトで簡潔な構成となり、小型軽量の移植機を得ることができる。   Thus, the operating arm 44 for opening and closing the seedling planting body 25 is provided on the shaft pivotally attached to the base of the lower lifting link 40b on the lower side of the vertical lifting links 40a and 40b for raising and lowering the seedling planting body 25. Therefore, a special shaft for providing the operating arm 44 is not required, and the structure is inexpensive and simple. However, the operating arm 44 is formed in an inverted L shape in a side view so as to avoid the base portion of the upper lifting link 40a, and an upper driven roller (driven cam) 44c is provided on the upper side of the operating arm 44 to raise and lower the upper arm. Since the operation arm 44 is operated by the action of the cam 46 provided on the shaft portion pivotally attached to the base portion of the link 40a, the distance from the rotation base portion of the operation arm 44 to the driven roller (driven cam) 44c is as follows. Since the cam 46 can be taken longer and the operating arm 44 can be operated with a smaller shape, the cam 46 can be made smaller and the configuration of the entire opening / closing operation mechanism of the seedling planting body 25 can be made compact. The operating arm 44, the connecting rod 44b, and the rear swing arm 44a are arranged along the outer periphery of the vertical lift links 40a and 40b, and the cam 46 and the driven roller (driven cam) 44c are connected to the operating arm 44. Since the configuration is arranged inside, these are very compact and simple configuration, and a small and light transplanter can be obtained.

また、作動アーム４４のカム形状を苗植付け体２５が最も下動した時に（下死点で）苗植付け体２５の下部側が前後に一気に開くような形状にすると、苗植付け体２５の最も下動した時から上昇する過程においては苗植付け体２５の下部側は前後に開き終わっているので、苗は圃場に適切に移植され苗の植付け姿勢が良い。   In addition, when the cam shape of the operating arm 44 is formed such that the lower side of the seedling planting body 25 opens back and forth when the seedling planting body 25 moves down most (at the bottom dead center), the seedling planting body 25 moves down most. Since the lower side of the seedling planting body 25 has been opened back and forth in the process of rising from the time when the seedling is raised, the seedling is transplanted appropriately in the field and the seedling is placed in a good posture.

更に、作動アーム４４のカム形状を苗植付け体２５が上動した時に苗植付け体２５の下部側が徐々に閉じるような形状にすると、閉じる時の音が小さくなって作業性が良い。尚、苗植付け体２５の下部側が複数段階で閉じるような段状のカム形状にしても良い。   Further, if the cam shape of the operating arm 44 is formed so that the lower side of the seedling planting body 25 is gradually closed when the seedling planting body 25 is moved upward, the sound at the time of closing is reduced and workability is improved. In addition, you may make it the step-shaped cam shape that the lower part side of the seedling planting body 25 closes in several steps.

伝動ケース２８を機体フレーム２ｂに取付ける取付部材３２と、ミッションケース８と走行用の伝動ケース９，９の間に設けたアクスルケース９ａ，９ａを支持する支持フレーム９ｂ、９ｂとの間とを、支持フレーム３２ａ，３２ａで連結し、伝動ケース２８と苗植付装置３と苗供給装置４との支持強度を向上させている。   Between the attachment member 32 for attaching the transmission case 28 to the body frame 2b, and the support frames 9b and 9b for supporting the axle cases 9a and 9a provided between the transmission case 8 and the transmission transmission cases 9 and 9, The support frames 32 a and 32 a are connected to improve the support strength of the transmission case 28, the seedling planting device 3, and the seedling supply device 4.

苗植付け体２５…の内側に供給する灌水用の水を供給するプランジャポンプ９１，９１のピストンロッド９１ａ，９１ａを装着している。前後方向視で門型状になった伝動ケース２８の内側に、苗植付け体２５…の内側に供給する灌水用の水を供給するプランジャポンプ９１，９１を装着し、伝動ケース２８の左右内側に突出させた前記回転軸４０ａＲ，４０ａＲにプランジャポンプ９１，９１のピストンロッド９１ａ，９１ａを装着し、プランジャポンプ９１，９１のケーシング部分９１ｂ，９１ｂは、前記伝動ケース２８を上部に装着した取付部材３２に設けたプランジャポンプ取付け部に取付けている。Ｔは灌水用の水を蓄えるタンクである。   Piston rods 91a and 91a of plunger pumps 91 and 91 for supplying water for irrigation supplied to the inside of the seedling planting body 25 are mounted. Plunger pumps 91 and 91 for supplying water for irrigation to be supplied to the inside of the seedling planting body 25... Are mounted inside the transmission case 28 having a gate shape when viewed in the front-rear direction. The piston rods 91a, 91a of the plunger pumps 91, 91 are mounted on the projecting rotary shafts 40aR, 40aR, and the casing members 91b, 91b of the plunger pumps 91, 91 are mounted on the mounting member 32 having the transmission case 28 mounted thereon. It is attached to the plunger pump attachment part provided in T is a tank for storing water for irrigation.

そして、前記の苗供給装置４から供給された苗を苗植付け体２５内に案内する合成樹脂にて形成された苗ガイド３７の上部ガイド３７ａの一部を内側に凹ませて下部に孔を開けて、該凹部に灌水ノズル９１ｃを嵌め込んでいる。この灌水ノズル９１ｃには、２つの灌水ノズル孔が設けてあり、苗植付け体２５が前後方向に開いた時に開いた前後の両方の苗植付け体２５の先端部に向けて水を噴出するように構成している。そして、プランジャポンプ９１，９１と各灌水ノズル９１ｃ…とは、配水パイプ９１ｄ…により連結されており、苗植付け体２５が最も下動して前後方向に開いて苗を植付ける時に、灌水ノズル９１ｃから水が開いた前後の両方の苗植付け体２５の先端部に向けて噴出されるようになっており、苗植付け体２５内面に付着した土を洗い流すと同時に苗に灌水する。尚、９１ｅ，９１ｅは、プランジャポンプ９１，９１とタンクＴとを連結する給水パイプである。   Then, a part of the upper guide 37a of the seedling guide 37 formed of a synthetic resin that guides the seedling supplied from the seedling supply device 4 into the seedling planting body 25 is recessed inside, and a hole is formed in the lower portion. The irrigation nozzle 91c is fitted in the recess. The irrigation nozzle 91c is provided with two irrigation nozzle holes so that water is ejected toward the front and rear ends of both seedling planting bodies 25 opened when the seedling planting body 25 is opened in the front-rear direction. It is composed. The plunger pumps 91, 91 and the irrigation nozzles 91c are connected by water distribution pipes 91d, and the irrigation nozzle 91c is used when the seedling planting body 25 moves most downward and opens in the front-rear direction to plant seedlings. Are sprayed toward the tip of both seedling planting bodies 25 before and after the water is opened, and the soil adhering to the inner surface of the seedling planting body 25 is washed away and simultaneously watered on the seedlings. In addition, 91e and 91e are water supply pipes which connect the plunger pumps 91 and 91 and the tank T.

一方、灌水用の水を蓄えるタンクＴは、一般的なポリタンクであって、後記の左右連結フレーム７３，７３に固着した左右タンク支持台７６，７６に左右２個づつ搭載できる構成となっている。そして、左右タンク支持台７６，７６は機体内側ほど高くなるように傾斜して設けてあり、搭載されたタンクＴは機体正面視で内側ほど高くなるような姿勢で搭載されることとなり、即ち、搭載されたタンクＴは機体左右外側方に向けて傾斜した姿勢となり、機体中央部に昇降用油圧シリンダ１２のピストンロッド先端に取り付けた連結体１３やロッド１４や左右水平制御用油圧シリンダ１５等の部材があっても、機体幅を広げることなくタンクＴを搭載できて、小型でコンパクトな苗移植機を得ることができる。然も、タンクＴは機体左右外側方に向けて傾斜した姿勢で搭載できるので、タンクＴの積み下ろしが容易で作業性が良い。   On the other hand, the tank T for storing water for irrigation is a general plastic tank, and can be mounted on left and right tank support bases 76 and 76 fixed to the left and right connection frames 73 and 73 described later. . The left and right tank support bases 76 and 76 are inclined so as to be higher toward the inner side of the body, and the mounted tank T is mounted in a posture so as to be higher toward the inner side as viewed from the front of the body. The mounted tank T is inclined toward the left and right outer sides of the body, and the connecting body 13 and the rod 14 attached to the tip of the piston rod of the elevating hydraulic cylinder 12 at the center of the body, the left and right horizontal control hydraulic cylinder 15 and the like. Even if there are members, the tank T can be mounted without widening the body width, and a small and compact seedling transplanter can be obtained. However, since the tank T can be mounted in a posture inclined toward the left and right outer sides of the machine body, it is easy to load and unload the tank T and the workability is good.

また、タンク支持台７６は、タンクＴの底面を受ける底板７６ａと該底板７６ａの前後に立上って設けた前後受け板７６ｂ，７６ｂと前後受け板７６ｂ，７６ｂの上端を連結する平面視コ字状の外側方受け板７６ｃとで構成されている。外側方受け板７６ｃの前後受け板７６ｂ，７６ｂの近くには、板ゴムバンドＢを係止できるフック７６ｄ，７６ｄが設けられている。底板７６ａは、タンクＴを２個横積みして、その底面を２／３程度受けれる面積になっている。従って、例えば、作業者が機体の左側のタンク支持台７６にタンクＴを積む場合には、機体の左側方から水の入ったタンクＴをタンク支持台７６に斜めに挿し込むようにして底板７６ａ上に２個載せると、２個のタンクＴは底が底板７６ａにて受けられて、前後側面と外側方とが前後受け板７６ｂ，７６ｂと外側方受け板７６ｃとで受けられた外側方に傾いた状態で載置される。そして、板ゴムバンドＢの一端を一方のフック７６ｄに結び、２個のタンクＴの取手部分の内側を通して前後方向に掛け渡し、板ゴムバンドＢの他端を他方のフック７６ｄに結ぶと、２個のタンクＴは固定される。機体の右側のタンク支持台７６にタンクＴを積む場合も同様である。   The tank support 76 is a bottom plate 76a that receives the bottom surface of the tank T, front and rear receiving plates 76b and 76b that are provided in front of and behind the bottom plate 76a, and a top view that connects the upper ends of the front and rear receiving plates 76b and 76b. It is comprised with the character-shaped outer side receiving plate 76c. Near the front and rear receiving plates 76b and 76b of the outer side receiving plate 76c, hooks 76d and 76d capable of locking the rubber band B are provided. The bottom plate 76a has an area where two tanks T are horizontally stacked and the bottom surface thereof can be received about 2/3. Therefore, for example, when an operator loads the tank T on the tank support base 76 on the left side of the machine body, the tank T filled with water from the left side of the machine body is obliquely inserted into the tank support base 76 on the bottom plate 76a. When two are mounted, the bottoms of the two tanks T are received by the bottom plate 76a, and the front and rear side surfaces and the outer side are inclined outwardly received by the front and rear receiving plates 76b and 76b and the outer side receiving plate 76c. Placed in a state. Then, one end of the rubber band B is connected to one hook 76d and is passed in the front-rear direction through the inside of the handle portions of the two tanks T, and the other end of the rubber band B is connected to the other hook 76d. The tanks T are fixed. The same applies when the tank T is loaded on the tank support 76 on the right side of the machine body.

タンクＴを機体から下ろす場合には、機体側方から板ゴムバンドＢの一端をフック７６ｄから外して、タンクＴを外側方に斜め上方に抜くようにして取り出す。このように、タンクＴは機体左右外側方に向けて傾斜した姿勢で搭載できるので、タンクＴの積み下ろしが容易で作業性が良い。   When the tank T is lowered from the machine body, one end of the rubber band B is removed from the side of the machine body from the hook 76d, and the tank T is taken out so as to be pulled obliquely upward outward. In this way, the tank T can be mounted in a posture inclined toward the left and right outer sides of the machine body, so that the tank T can be easily loaded and unloaded and the workability is good.

苗供給装置４は、上下に開口する筒状体４７…と該筒状体４７…の下側の開口部４７ａ…を開閉する底蓋４８…とを有し互いにループ状に連結する複数の苗収容体２９…と、該苗収容体２９…を前記苗植付け体２５…の上方近傍を通過する状態で機体平面視前後に長い長円形状のループ状の軌跡で周回動させる移動機構３０と、前記苗収容体２９…の底蓋４８…を苗植付け体２５…の上方位置で開放する開放機構３１を設けた構成である。   The seedling supply device 4 has a plurality of seedlings that have a cylindrical body 47 that opens up and down and a bottom lid 48 that opens and closes a lower opening 47a of the cylindrical body 47 that are connected in a loop. And a moving mechanism 30 for rotating the seedling container 29 around a long oval loop trajectory before and after the plane of the machine body in a state of passing through the vicinity of the upper part of the seedling planting body 25. It is the structure which provided the open | release mechanism 31 which open | releases the bottom cover 48 ... of the said seedling container 29 ... in the upper position of the seedling planting body 25 ....

苗供給装置４は、前記苗収容体２９…の外周に円筒外周部を形成し、該円筒外周部に外側から回動自在に係合する係合部（丸孔）を有して二つの苗収容体２９，２９を連結する連結体４９を複数設け、該連結体４９…の係合部を苗収容体２９…の円筒外周部に回動自在に係合し該円筒外周部を回動軸として隣の苗収容体２９…が回動自在に連結する状態として複数の苗収容体２９…を互いに連結した構成としている。即ち、苗収容体２９…と連結体４９…とで無端チェーンのように連結した構成である。これにより、この苗移植機は、苗収容体２９…は、直線的に移動する部分でも円弧状に移動する部分でも隣接する苗収容体２９…との間隔が変わらないので、苗収容体２９から苗植付け体２５に苗を供給する個所で苗収容体２９が苗植付け体２５に対して位置ズレが生じにくくなり苗供給が適正に行われて適確な苗の移植ができる。苗収容体２９…の個数と周回動する範囲を設定したうえで、苗収容体の上側開口部４３ｂ…を可能な限り広く形成できて、機体のコンパクト化を図りつつ苗収容体２９…への苗供給作業をできるだけ容易に行えるものとなる。   The seedling supply device 4 forms a cylindrical outer peripheral portion on the outer periphery of the seedling container 29, and has an engagement portion (round hole) that engages with the cylindrical outer peripheral portion so as to be freely rotatable from the outside. A plurality of connecting bodies 49 for connecting the accommodating bodies 29, 29 are provided, and the engaging portions of the connecting bodies 49 are rotatably engaged with the cylindrical outer peripheral portion of the seedling containing bodies 29, so that the cylindrical outer peripheral portion is rotated. As a state where adjacent seedling containers 29 are rotatably connected, a plurality of seedling containers 29 are connected to each other. That is, it is the structure which connected with the seedling container 29 ... and the connection body 49 ... like an endless chain. Thereby, since this seedling transplanter 29 does not change the space | interval with the adjacent seedling container 29 ... even if the seedling container 29 ... is a part which moves linearly, or a part which moves circularly, from the seedling container 29. The seedling container 29 is less likely to be misaligned with respect to the seedling planting body 25 at the location where the seedling planting body 25 is supplied with seedlings, so that the seedling is properly supplied and the seedlings can be transplanted accurately. After setting the number of seedling containers 29 and the range of circumferential rotation, the upper opening 43b of the seedling container can be formed as wide as possible, and the size of the body can be reduced, while reducing the size of the body. The seedling supply operation can be performed as easily as possible.

苗供給装置４の移動機構３０は、右側及び左側の苗供給装置４Ｒ，４Ｌともに、それぞれ無端チェーンのように互いに連結する苗収容体２９…，２９…を左右に設けたスプロケット５０・５０，５０・５０の外周の円弧状切欠部に係合させて巻き掛け、この左右のスプロケット５０・５０，５０・５０を伝動ケース２８内から取り出した動力で駆動回転することにより、右側及び左側の苗供給装置４Ｒ，４Ｌの各苗収容体２９…，２９…を周回動させる構成としている。スプロケット５０・５０，５０・５０を駆動回転可能に取付ける回動軸５１・５１，５１・５１は、伝動ケース２８の上部で支持した支持フレーム５２に回動可能に取付け、伝動ケース２８の上部から上方に突出させた左右の回転軸５３ａ，５３ｂからスプロケットとチェンを介して各回動軸５１・５１，５１・５１に伝動する構成としている。   The moving mechanism 30 of the seedling supply device 4 includes sprockets 50, 50, 50 in which the right and left seedling supply devices 4R, 4L are respectively provided with seedling containers 29 ..., 29 ... connected to each other like endless chains. Engage and wrap around 50 arc-shaped cutouts on the outer periphery of the 50, and rotate the left and right sprockets 50, 50, 50, 50 with the power extracted from the transmission case 28, thereby supplying the right and left seedlings. It is set as the structure which rotates each seedling container 29 ..., 29 ... of apparatus 4R, 4L. Rotating shafts 51, 51, 51, 51 to which the sprockets 50, 50, 50, 50 are rotatably mounted are attached to a support frame 52 supported by the upper portion of the transmission case 28 so that the sprockets 50, 50, 50, 50 can be rotated from above the transmission case 28. The left and right rotating shafts 53a and 53b projecting upward are transmitted to the respective rotating shafts 51 and 51 and 51 and 51 through sprockets and chains.

苗収容体２９…が周回する前後の軸５１・５１，５１・５１は、左右の後輪６，６より機体内側で、且つ、苗収容体２９…が周回する前側の軸５１，５１を後輪６，６の車軸１０，１０位置より前側で、苗収容体２９…が周回する後側の軸５１，５１を後輪６，６の車軸１０，１０位置より後側に配置している。また、苗植付け体２５は、後輪６，６の車軸１０，１０位置より後側に配置している。   The front and rear shafts 51, 51, 51, 51 around which the seedling container 29 circulates are located behind the left and right rear wheels 6, 6 and the front shafts 51, 51 around which the seedling container 29 circulates are rearward. The rear shafts 51 and 51 around which the seedling containing bodies 29 circulate are arranged on the front side of the axles 10 and 10 positions of the wheels 6 and 6 and on the rear side of the axles 10 and 10 positions of the rear wheels 6 and 6. The seedling planting body 25 is arranged on the rear side of the axles 10 and 10 positions of the rear wheels 6 and 6.

伝動ケース２８内の伝動機構は、ミッションケース８から動力が取出されて伝動回転する伝動軸２８ａの後端と連結する入力軸１３に取付けた第一ベベルギヤ５４から左右方向にのびる伝動軸５５に回転自在に取付けた第二ベベルギヤ５６に伝動し、そして、第二ベベルギヤの一端に設けたクラッチ爪と係脱可能なクラッチ爪を有する定位置停止クラッチである植付クラッチＣを介して伝動軸５５に伝動する。この植付クラッチＣは、苗供給装置４の下方に設けたレバーを作業者用座席７０Ｌ，７０Ｒに座る作業者が操作することで操作され、このクラッチＣの入り切りで苗植装置３の駆動が入り切りされる。伝動軸５５の左右両端部には、第一スプロケット５７・５７が一体回転するように取り付けられ、この第一スプロケット５７・５７から、伝動ケース２８の左右両端部から下方にのびるケース内下方に設けた第二スプロケット５８・５８にチェン５９・５９を介して伝動する。また、伝動軸５５の左右両端部は、第一スプロケット５７・５７から更にのびて伝動ケース２８の左右両外側に突出する。その突出部が駆動軸４１・４１となっている。第二スプロケット５８・５８と一体回転する回転軸４０ａＲも伝動ケース２８の左右両外側に突出し、更にその先端に偏芯状態で第一昇降リンク４０ａの枢支軸となる第一軸４０ａＳが形成されて回転軸４０ａＲと一体的に回転する。また、伝動軸５５の中途部に第三ベベルギヤ６０を一体回転するように取付け、それに噛み合う第四ベベルギヤ６１を介して、伝動ケース２８の上部から上方に突出させた一方側の回転軸５３ａを駆動回転する。他方側の回転軸５３ｂは、この回転軸５３ｂに設けたギヤ６２が一方側の回転軸５３ａに設けたギヤ６３と噛合って逆回転伝動される。この左右の回転軸５３ａ，５３ｂから、伝動ケース２８に取り付けた支持部材５４ａによって支持した横方向にのびる支持フレーム５４ｂの左右両側部に回転自在に支持した左右の後側回動軸５１，５１に、それぞれスプロケット６５ａ・６５ａ，６５ｂ・６５ｂとチェン６５ｃ，６５ｃを介して伝動し、更に、ここから左右の前側回動軸５１，５１に、それぞれスプロケット６６ａ・６６ａ，６６ｂ・６６ｂとチェン６６ｃ，６６ｃを介して伝動する構成としている。   The transmission mechanism in the transmission case 28 rotates from the first bevel gear 54 attached to the input shaft 13 connected to the rear end of the transmission shaft 28a that is rotated by transmission from the transmission case 8 to the transmission shaft 55 extending in the left-right direction. The transmission shaft 55 is transmitted to a transmission shaft 55 via a planting clutch C, which is a fixed position stop clutch having a clutch pawl provided at one end of the second bevel gear and a clutch pawl that is detachable. Be transmitted. The planting clutch C is operated by an operator sitting on the operator seats 70L and 70R operating a lever provided below the seedling supply device 4, and the seedling planting device 3 is driven by turning the clutch C on and off. It is cut off. First sprockets 57 and 57 are attached to both left and right ends of the transmission shaft 55 so as to rotate integrally. The first sprockets 57 and 57 are provided on the lower side in the case extending downward from the left and right ends of the transmission case 28. The second sprockets 58 and 58 are transmitted through the chains 59 and 59. Further, the left and right end portions of the transmission shaft 55 further extend from the first sprockets 57 and 57 and project to the left and right outer sides of the transmission case 28. The protruding portions are drive shafts 41 and 41. The rotary shaft 40aR that rotates integrally with the second sprockets 58 and 58 also protrudes from the left and right outer sides of the transmission case 28, and further, a first shaft 40aS serving as a pivot shaft of the first lifting link 40a in an eccentric state is formed at the tip. And rotate integrally with the rotary shaft 40aR. Further, the third bevel gear 60 is attached to the middle portion of the transmission shaft 55 so as to rotate integrally, and the one rotation shaft 53a that protrudes upward from the upper portion of the transmission case 28 is driven via the fourth bevel gear 61 that meshes with the third bevel gear 60. Rotate. The rotation shaft 53b on the other side is reversely rotated by the gear 62 provided on the rotation shaft 53b meshing with the gear 63 provided on the rotation shaft 53a on the one side. From the left and right rotating shafts 53a, 53b to the left and right rear rotating shafts 51, 51 rotatably supported on the left and right sides of the laterally extending support frame 54b supported by the support member 54a attached to the transmission case 28. Are transmitted through the sprockets 65a, 65a, 65b, 65b and the chains 65c, 65c, respectively, and from here to the left and right front rotation shafts 51, 51, respectively, the sprockets 66a, 66a, 66b, 66b and the chains 66c, 66c. It is set as the structure transmitted via.

苗供給装置４の開放機構３１は、苗収容体２９…の周回軌跡下方で底蓋４８…が下方に回動しないように底蓋４８…を下方から支持する支持体６７を設け、この支持体６７を苗植付け体２５…の上方位置には設けないようにすることで、苗植付け体２５…の上方位置を苗収容体２９が通過するとき、底蓋４８が支持体６７による支持状態が解かれて下方回動し苗収容体２９を苗を下方に落下可能に開放する構成としている。苗収容体２９の底蓋４８が開くタイミングは、苗植付け体２５…が苗収容体２９の直下まで上昇したときとなるように調整しておく。また、上記構成に代えて、苗植付け体が苗収容体の直下まで上昇したときに、苗植付け体に設けた開放作動部材が、苗植付け体の上方に位置する苗収容体の底蓋が開くのを規制する規制手段を規制解除動作させる構成も採用できる。   The opening mechanism 31 of the seedling supply device 4 is provided with a support 67 that supports the bottom cover 48 from below so that the bottom cover 48 does not rotate downward below the orbit of the seedling container 29. 67 is not provided above the seedling planting bodies 25... So that the bottom lid 48 is unsupported by the support 67 when the seedling container 29 passes above the seedling planting bodies 25. Accordingly, the seedling container 29 is rotated downward to open the seedling so that the seedling can be dropped downward. The timing at which the bottom lid 48 of the seedling container 29 opens is adjusted so that the seedling planting bodies 25... Rise up to just below the seedling container 29. Further, instead of the above configuration, when the seedling planting body rises to just below the seedling container, the opening actuating member provided on the seedling planting body opens the bottom lid of the seedling container that is located above the seedling planting body. It is also possible to adopt a configuration in which the restriction means for restricting the above is operated to release the restriction.

本例の苗供給装置４は、機体右側の二つの苗植付け体２５，２５に対して苗を供給する右側苗供給装置４Ｒと、機体左側の二つの苗植付け体２５，２５に対して苗を供給する左側苗供給装置４Ｌは、共に、二つの苗植付け体２５，２５に対して苗収容体２９…が一回りで周回移動して苗を供給する構成としている。このように二つの苗植付け体２５，２５に対して苗収容体２９…が一回りで周回移動して苗を供給する構成とした場合は、一方側の苗植付け体２５に落下供給する苗収容体２９…と他方側の苗植付け体２９…に落下供給する苗収容体２９…とが交互になるように連結し、且つ、一方側の苗植付け体２５に落下供給する苗収容体２９…が一方側の苗植付け体２５の上方を通過するとき、他方側の苗植付け体２５に落下供給する苗収容体２９…が他方側の苗植付け体２５の上方を通過するように設定し、また、少なくとも、苗収容体２９…の周回移動方向下手側の苗植付け体２５に落下供給する苗収容体２９…が、苗収容体２９…の周回移動方向上手側の苗植付け体２５の上方を通過するときは、その苗収容体２９…については開放動作されないようにする開放規制手段を設ける。このように設けた上で、更に、苗植付け体２５，２５の上下動が一周期動作する間に苗収容体２９…が２個分周回移動するように構成すると、苗収容体２９…が二つの苗植付け体２５，２５４の上方を直列的に通過しながら二つの苗植付け体２５，２５に対して苗供給漏れが生じることなく同時に苗を供給でき、且つ、二つの苗植付け体２５，２５の上方を通過した後に苗が供給されなかった苗収容体２９…が生じないよう余すことなく二つの苗植付け体２５，２５に対して苗を供給できるものとなり、苗供給作業が余裕をもって行え、且つ、二つの苗植付け体２５，２５に対して確実に苗を供給できる。なお、前記開放規制手段は、例えば、苗収容体の周回移動方向下手側の苗植付け体に落下供給する苗収容体の蓋に突起を設け、この突起が、苗収容体の周回移動方向上手側の苗植付け体の上方を通過するときに、下方から支持する構成とすることで可能となる。   The seedling supply device 4 of this example includes a right seedling supply device 4R that supplies seedlings to the two seedling planting bodies 25, 25 on the right side of the machine body, and a seedling for the two seedling planting bodies 25, 25 on the left side of the machine body. Both the left seedling supply devices 4L to supply are configured so that the seedling containers 29... Rotate around the two seedling planting bodies 25 and 25 to supply seedlings. In this way, when the seedling container 29... Moves around the two seedling planting bodies 25, 25 to supply seedlings, the seedling container is supplied to the seedling planting body 25 on one side. A seedling container 29 that is connected so as to alternate between the body 29 and the seedling planting body 29 that is supplied to the other side seedling planting body 29 and that is supplied to the one side seedling planting body 25 is provided. When passing above the seedling planting body 25 on one side, the seedling container 29 to be supplied to fall on the seedling planting body 25 on the other side is set to pass above the seedling planting body 25 on the other side, At least the seedling containers 29 to be supplied to the seedling planting body 25 on the lower side in the circumferential movement direction of the seedling containers 29... Pass above the seedling planting body 25 on the upper side in the circumferential movement direction of the seedling containers 29. When the seedling container 29 is not opened Providing a Unisuru opening regulation means. In addition to the above, if it is configured so that the seedling receiving bodies 29... Move two times while the vertical movement of the seedling planting bodies 25, 25 operates for one cycle, the seedling receiving bodies 29. The seedlings can be supplied simultaneously to the two seedling planting bodies 25, 25 while passing over the two seedling planting bodies 25, 254 in series without causing seedling supply leakage, and the two seedling planting bodies 25, 25 The seedling container 29, which has not been supplied with seedlings after passing above, can be supplied with seedlings to the two seedling planting bodies 25, 25 without leaving the seedlings, and the seedling supply operation can be performed with a margin, And a seedling can be reliably supplied with respect to the two seedling planting bodies 25 and 25. The opening restricting means is provided, for example, with a protrusion on the lid of the seedling container that drops and supplies the seedling planting body on the lower side in the circumferential movement direction of the seedling container, and this protrusion is on the upper side in the circumferential movement direction of the seedling container. When passing above the seedling planting body, it is possible to support from below.

この苗植機は、苗植付け体２５…が植付けた苗に対して覆土鎮圧するための覆土鎮圧輪８０…を各苗植付け体２６…の苗植付け個所の各後方左右両側近傍位置に設けている。また、苗植付け体２５…が苗を植付ける前の圃場面を鎮圧して整地する鎮圧ローラ８１…を各苗植付け体２６…の苗植付け個所の各前方近傍位置に設けている。これらの覆土鎮圧輪８０…と鎮圧ローラ８１…は、機体フレーム２ｂに支持した支持軸８２に支持させて、支持構造の簡略化が図られている。   This seedling planting machine is provided with a soil covering pressure reducing wheel 80 for covering and suppressing the seedlings planted by the seedling planting bodies 25 at positions near the rear left and right sides of the seedling planting locations of each seedling planting body 26. . In addition, a pressure-reducing roller 81 for reducing the level of the field before the seedling planting bodies 25 plant the seedlings is provided near each front position of the seedling planting location of each seedling planting body 26. These covering soil pressure-reducing wheels 80 and pressure-reducing rollers 81 are supported by a support shaft 82 supported by the body frame 2b to simplify the support structure.

本例の苗植機は、苗供給装置４に苗を補給する作業者が乗車して苗補給作業が行えるよう、作業者が座る作業者用座席７０Ｌ，７０Ｒを設けている。具体的には、左側苗供給装置４Ｌの前側部の左外側近傍に左側の作業者用座席７０Ｌを配置し、右側苗供給装置４Ｒの前側部の右外側近傍に右側の作業者用座席７０Ｒを配置している。これらの座席７０Ｌ，７０Ｒの背凭れは、それぞれ機体の左右方向外側に位置するよう設けていて、その座席７０Ｌ，７０Ｒに座る作業者は、苗供給装置４Ｌ，４Ｒの前側部に向って機体内側向き姿勢で着座して、苗供給装置４Ｌ，４Ｒの前側部に対して苗補給作業を行う。また、本例の苗植機は、畝溝を走行する後輪６，６の後側で機体後部に設けた操縦ハンドル２の左右方向外側に、作業者が立って前に歩きながら苗供給装置４の後側部に苗を補給する作業を可能とする作業空間Ｗを形成しており、この作業空間Ｗに立つ作業者から苗供給装置４Ｌ，４Ｒの後側部に対して苗補給作業を行うことができる。   The seedling planting machine of this example is provided with worker seats 70L and 70R on which an operator sits so that an operator who supplies seedlings to the seedling supply device 4 can get on and perform seedling supply operations. Specifically, the left worker's seat 70L is disposed near the left outer side of the front side portion of the left seedling supply device 4L, and the right worker's seat 70R is disposed near the right outer side of the front side portion of the right seedling supply device 4R. It is arranged. The backrests of these seats 70L and 70R are provided so as to be positioned on the outer sides in the left-right direction of the body, and the operator sitting on the seats 70L and 70R faces the front side of the seedling supply devices 4L and 4R. Sit in a facing posture and perform seedling replenishment work on the front sides of the seedling supply devices 4L and 4R. Further, the seedling transplanter of the present example is a seedling supply device while an operator stands and walks forward in the lateral direction outside of the steering handle 2 provided on the rear side of the machine body on the rear side of the rear wheels 6 and 6 traveling in the ridge groove. A work space W that enables the operation of replenishing seedlings is formed on the rear side of the four, and a worker standing in the work space W performs seedling replenishment work on the rear side of the seedling supply devices 4L and 4R. It can be carried out.

また、左右の作業者用座席７０Ｌ，７０Ｒは、前輪７，７の車軸１７，１７位置より後側で且つ後輪６，６の車軸１０，１０位置より前側に位置させて配置している。更に、作業者用座席７０Ｌ，７０Ｒは、機体側面視で後輪６，６の上方に座席の一部がオーバーラップするように配置している。また、作業者用座席７０Ｌ，７０Ｒは、機体側面視で走行用の伝動ケース９，９の回動軸心Ｘの上方に配置しており、前輪７，７は、走行用の伝動ケース９，９の回動軸心Ｘより前側に配置した構成としている。   The left and right worker seats 70L and 70R are disposed rearward of the positions of the axles 17 and 17 of the front wheels 7 and 7 and in front of the positions of the axles 10 and 10 of the rear wheels 6 and 6. Further, the operator seats 70L and 70R are arranged so that a part of the seat overlaps above the rear wheels 6 and 6 in a side view of the body. Further, the operator seats 70L and 70R are arranged above the rotation axis X of the traveling transmission case 9, 9 in a side view of the body, and the front wheels 7, 7 are connected to the traveling transmission case 9, It is set as the structure arrange | positioned ahead of 9 rotation axis X.

作業者用座席７０Ｌ，７０Ｒの支持構成は、後輪６，６の車軸１０，１０を支持する支持部材である伝動ケース９，９の内側に突出させた後輪６，６の車軸１０，１０に取付けた座席支持部材７２・７２，７３・７３で支持し、該座席支持部材７２・７２，７３・７３に、後輪６，６の車軸１０，１０が上下しても作業者用座席７０Ｌ，７０Ｒが前後に傾かないようにする姿勢維持機構を設けている。   The support structure of the worker seats 70L and 70R is such that the axles 10 and 10 of the rear wheels 6 and 6 are protruded inside the transmission cases 9 and 9 which are support members for supporting the axles 10 and 10 of the rear wheels 6 and 6. Even if the axles 10 and 10 of the rear wheels 6 and 6 are moved up and down on the seat support members 72, 72, 73, and 73, they are supported by the seat support members 72, 72, 73, and 73 attached to the seat 70L. , 70R is provided with a posture maintaining mechanism that prevents it from tilting back and forth.

この姿勢維持機構は、本例では、以下のように構成している。まず、上部に作業者用座席７０Ｌ，７０Ｒを取付けた座席支持フレーム７２，７２を設け、また、前輪７，７の車軸１７，１７を支持する支持部材である前記縦フレーム１６ａ，１６ａと、後輪６，６の車軸１０，１０とを連結する前後に長い連結フレーム７３，７３を設ける。この連結フレーム７３，７３の前端部側は、前輪７，７の車軸１７，１７を支持する前記縦フレーム１６ａ，１６ａの内側に固着、突出させたピンに回動自在の支持筒７４，７４に前後方向摺動自在に挿入させている。また、連結フレーム７３，７３の後端部側は、後輪６，６の車軸１０，１０に回動自在に取付けた筒部７５，７５に一体的に固着している。従って、走行用の伝動ケース９，９が下移動して後輪６，６の車軸１０，１０が上下しても、連結フレーム７３，７３は、前後の傾き変動が生じない。この連結フレーム７３，７３の前後途中個所に、前記座席支持フレーム７２，７２の下部を取付けている。よって、走行用の伝動ケース９，９が回動して後輪６，６の車軸１０，１０が上下しても、作業者用座席７０Ｌ，７０Ｒは前後に傾いたりすることがない。また、この連結フレーム７３，７３に対して、座席支持フレーム７２，７２は上下軸心まわりに回動させて、作業者用座席７０Ｌ，７０Ｒを機体内側に移動可能に設けていて、これにより、移動時や格納時に作業者用座席７０Ｌ，７０Ｒを機体内側に収納させることができる。   In this example, the posture maintaining mechanism is configured as follows. First, seat support frames 72 and 72 with worker seats 70L and 70R attached to the upper part are provided, and the vertical frames 16a and 16a, which are support members for supporting the axles 17 and 17 of the front wheels 7 and 7, Long connecting frames 73 and 73 are provided before and after connecting the axles 10 and 10 of the wheels 6 and 6. The front end portions of the connecting frames 73 and 73 are fixed to support cylinders 74 and 74 that are rotatable on pins protruded from and fixed to the inner sides of the vertical frames 16a and 16a that support the axles 17 and 17 of the front wheels 7 and 7, respectively. It is inserted slidable in the front-rear direction. Further, the rear end side of the connecting frames 73 and 73 is integrally fixed to cylindrical portions 75 and 75 that are rotatably attached to the axles 10 and 10 of the rear wheels 6 and 6. Therefore, even if the traveling transmission cases 9 and 9 are moved downward and the axles 10 and 10 of the rear wheels 6 and 6 are moved up and down, the connecting frames 73 and 73 are not tilted back and forth. The lower portions of the seat support frames 72, 72 are attached to the middle portions of the connecting frames 73, 73 before and after. Therefore, even if the traveling transmission cases 9 and 9 rotate and the axles 10 and 10 of the rear wheels 6 and 6 move up and down, the operator seats 70L and 70R do not tilt forward and backward. In addition, the seat support frames 72, 72 are rotated around the vertical axis with respect to the connection frames 73, 73, so that the operator seats 70L, 70R can be moved inside the machine body. The operator seats 70L and 70R can be stored inside the fuselage during movement or storage.

なお、連結フレーム７３，７３の前端部側を装着している前記支持筒７４，７４を前輪７，７の車軸１７，１７に取付けることもできる。また、連結フレーム７３，７３の後端部を後輪６，６の車軸１０，１０を支持する支持部材である走行用の伝動ケース９，９の内側に突出させた軸に回動自在に前記筒部７５，７５を回動自在に取付けこともできる。更に、連結フレーム７３，７３の前輪７，７側の連結部は、連結フレーム７３，７３を、前輪の車軸１７，１７又は縦フレーム１６ａ，１６ａに対して摺動不能且つ回動自在に連結し、連結フレーム７３，７３の後輪６，６側の連結部は、連結フレーム７３，７３を、後輪の車軸１０，１０又は伝動ケース９，９に対して摺動自在且つ回動自在に連結する構成することもできる。このように構成すると、走行用の伝動ケース９，９が下方回動して後輪６，６の車軸１０，１０が下降すると、後輪６，６が機体に対して相対的に前方移動するが、作業者用座席７０Ｌ，７０Ｒは機体に対して相対的に前後方向には移動しない。従って、機体を旋回させるために、後輪６，６をまず下降して機体を上昇させ、そして、操縦ハンドル２を押し下げて二輪接地状態にして機体を旋回させるとき、前後方向において作業者用座席７０Ｌ，７０Ｒが後輪６，６の車軸１０，１０に向って接近することになるので、作業者用座席７０Ｌ，７０Ｒの重量による操縦ハンドル２の押し下げ負荷が軽減される。また、連結フレーム７３，７３の前輪７，７側の連結部と、連結フレーム７３，７３の後輪６，６側の連結部の両方ともに、連結フレーム７３，７３を摺動自在且つ回動自在に連結する構成とすることもできる。   The support cylinders 74 and 74 mounted on the front end side of the connecting frames 73 and 73 can be attached to the axles 17 and 17 of the front wheels 7 and 7. Further, the connecting frames 73 and 73 have rear end portions that are rotatable about shafts that protrude inside the traveling transmission cases 9 and 9 that are support members for supporting the axles 10 and 10 of the rear wheels 6 and 6. The cylindrical portions 75 and 75 can also be rotatably attached. Further, the connecting portions on the front wheels 7 and 7 side of the connecting frames 73 and 73 connect the connecting frames 73 and 73 to the front axles 17 and 17 or the vertical frames 16a and 16a in a non-slidable and rotatable manner. The connecting portions on the rear wheels 6 and 6 side of the connecting frames 73 and 73 connect the connecting frames 73 and 73 to the rear wheel axles 10 and 10 or the transmission cases 9 and 9 so as to be slidable and rotatable. It can also be configured. With this configuration, when the traveling transmission cases 9 and 9 rotate downward and the axles 10 and 10 of the rear wheels 6 and 6 descend, the rear wheels 6 and 6 move forward relative to the fuselage. However, the operator seats 70L and 70R do not move in the front-rear direction relative to the aircraft. Accordingly, in order to turn the airframe, the rear wheels 6 and 6 are first lowered to raise the airframe, and when the steering handle 2 is pushed down to bring the two-wheel grounding state and the airframe is turned, the operator seat in the front-rear direction Since 70L and 70R approach toward the axles 10 and 10 of the rear wheels 6 and 6, the load of pushing down the steering handle 2 due to the weight of the operator seats 70L and 70R is reduced. Further, both of the connecting portions on the front wheels 7 and 7 side of the connecting frames 73 and 73 and the connecting portions on the rear wheels 6 and 6 side of the connecting frames 73 and 73 are capable of sliding and rotating the connecting frames 73 and 73. It can also be set as the structure connected to.

更に、この苗植機は、左右の作業者用座席７０Ｌ，７０Ｒの各機体左右方向内側下方にステップ７１Ｌ，７１Ｒを設けている。このステップ７１Ｌ，７１Ｒは、機体側面視で作業者用座席７０Ｌ，７０Ｒの下方位置から前輪７，７の上方位置にわたって延設している。後輪６，６は大径車輪で、前輪７，７は小径車輪であり、機体側面視で、この小径車輪の前輪７，７の上方にステップ７１Ｌ，７１Ｒの前側部分が位置するように設けている。ステップ７１Ｌ，７１Ｒは、後側をアクスルケース９ａ，９ａの上部に取付け、前側を、バンパーフレーム９１に内端部を固着したステップ支持フレーム９２，９２と、該ステップ支持フレーム９２，９２の外端部と固着し前記支持プレート９ｃ，９ｃと一体のステップ支持プレート９３，９３との上に固定して取付けている。   Furthermore, this seedling transplanter is provided with steps 71L and 71R at the lower left and right inner sides of the left and right worker seats 70L and 70R. The steps 71L and 71R extend from the position below the worker seats 70L and 70R to the position above the front wheels 7 and 7 in a side view of the machine body. The rear wheels 6 and 6 are large-diameter wheels, and the front wheels 7 and 7 are small-diameter wheels, and are provided so that the front portions of the steps 71L and 71R are located above the front wheels 7 and 7 of the small-diameter wheels in a side view of the body. ing. Steps 71L and 71R have step support frames 92 and 92 each having a rear side attached to an upper portion of the axle case 9a and 9a and a front side fixed to an inner end portion of the bumper frame 91, and outer ends of the step support frames 92 and 92. It is fixedly mounted on the step support plates 93, 93 which are fixed to the portion and integrated with the support plates 9c, 9c.

また、エンジン５の排気管５ａをエンジン５のマフラーから延設して左側のステップ７１Ｌの下方に配置し、排気管５ａの排気口５ｂが左作業者用座席７０Ｌの下方で左外側方に向いて開口するように構成している。このように排気管５ａを配置すると、エンジン５の排気ガスは左作業者用座席７０Ｌの外側方に向けて排出されるので、左作業者用座席７０Ｌに着座して作業している作業者がエンジン５の排気を吸い込むような事態が防止できて、安全で作業性が良い。   Further, the exhaust pipe 5a of the engine 5 extends from the muffler of the engine 5 and is disposed below the left step 71L. The exhaust port 5b of the exhaust pipe 5a faces the left outer side below the left worker seat 70L. Are configured to open. When the exhaust pipe 5a is arranged in this manner, the exhaust gas of the engine 5 is discharged toward the outside of the left worker's seat 70L, so that an operator who is seated and working on the left worker's seat 70L. A situation such as inhaling the exhaust of the engine 5 can be prevented, and safety and workability are good.

作業者用座席７０Ｌ，７０Ｒの後側近傍で機体側面視で後輪６，６の車軸１０，１０の上方位置に、苗供給装置４に補給する苗を収容可能なコンテナＣ、Ｃを設置可能に設けている。本例では、プラスチック等で成形された箱状のコンテナＣの両側部に形成された取手孔Ｃ１，Ｃ１の一方側に係合してコンテナＣを支持するコンテナ係合部材９４，９４を設けて、これにより、コンテナＣ、Ｃを設置可能に設けていて、コンテナ支持部の構造が簡単なものとなり、且つ、コンテナを設置していないときにコンテナ支持部が大きな空間を占めず、機体のコンパクト化と軽量化、低コスト化が図れる。図示例の具体構成は、コンテナ係合部材９４，９４の上端部がクランク状に屈曲していて、その上端部をコンテナＣの取手孔Ｃ１に外側から挿入してクランク状の屈曲部で取手孔Ｃ１が引っ掛かるようにすることで、コンテナＣをコンテナ係合部材９４に支持させることができる。また、コンテナ係合部材９４は、座席支持フレーム７２，７２の上部に固着していて、作業者用座席７０Ｌ，７０Ｒの後側に起立するように設けている。路上走行時に作業者が作業者用座席７０Ｌ，７０Ｒに着座したときに手摺を兼ねる。   Containers C and C capable of storing seedlings to be supplied to the seedling supply device 4 can be installed in the vicinity of the rear sides of the worker seats 70L and 70R and above the axles 10 and 10 of the rear wheels 6 and 6 in a side view of the body. Provided. In this example, container engagement members 94 and 94 are provided which engage with one side of handle holes C1 and C1 formed on both sides of a box-like container C formed of plastic or the like and support the container C. Thus, the containers C and C can be installed, the structure of the container support portion is simplified, and the container support portion does not occupy a large space when the container is not installed. , Weight reduction, and cost reduction. The specific configuration of the illustrated example is that the upper end portions of the container engaging members 94, 94 are bent in a crank shape, and the upper end portions are inserted into the handle holes C1 of the container C from the outside, and the handle holes are formed in the crank-shaped bent portions. Container C can be supported by container engaging member 94 by causing C1 to be caught. Further, the container engaging member 94 is fixed to the upper part of the seat support frames 72, 72, and is provided to stand on the rear side of the worker seats 70L, 70R. When the operator is seated on the operator seats 70L and 70R when traveling on the road, it also serves as a handrail.

本例の苗植機は、苗植付け体２５に灌水用の水を供給可能に構成して、苗の植付と同時に灌水が行なえるようになっている。そして、灌水用の水を蓄えるタンクＴ・Ｔ，Ｔ・Ｔは、後輪６，６の機体左右方向内側で機体側面視において後輪６，６の車軸１０，１０付近に設けたタンク支持台７６，７６上に載置可能に設けている。このタンク支持台７６，７６は、前記連結フレーム７３，７３に固着した支持部材上に固定されている。   The seedling planting machine of this example is configured so that water for irrigation can be supplied to the seedling planting body 25, so that irrigation can be performed simultaneously with planting of the seedlings. The tanks T, T, and T for storing water for irrigation are tank support bases provided in the vicinity of the axles 10 and 10 of the rear wheels 6 and 6 in the lateral direction inside the rear wheels 6 and 6 in the lateral direction of the body. 76, 76 so that it can be placed thereon. The tank support bases 76 and 76 are fixed on support members fixed to the connection frames 73 and 73.

また、作業者用座席７０Ｌ，７０Ｒの後側で機体側面視で後輪６，６の車軸１０，１０の上方位置で且つ機体側面視でタンク支持台７６，７６上に載置したタンクＴ・Ｔ，Ｔ・Ｔの上方位置に苗供給装置４に補給する苗を収容可能なコンテナＣを設置可能に設けている。   In addition, tanks T · placed on the tank support bases 76 and 76 at the positions above the axles 10 and 10 of the rear wheels 6 and 6 on the rear side of the operator seats 70L and 70R in the side view of the body and in the side view of the body. A container C capable of accommodating seedlings to be supplied to the seedling supply device 4 is provided above T, T · T.

以上のとおり、上記の苗植機は、左右一対の前輪と左右一対の後輪が畝を跨いだ状態で前進走行しながら、苗植付け体２５，２５，２５，２５が圃場に苗を植付ける。苗供給装置４Ｌ，４Ｒは苗植付け体２５，２５，２５，２５に苗を供給する。作業者は、作業者用座席７０Ｌ，７０Ｒに着座して苗供給装置４Ｌ，４Ｒに苗を補給する作業を行なうことができる。   As described above, the seedling planting machine 25, 25, 25, and 25 plant seedlings in a farm field while traveling forward with a pair of left and right front wheels and a pair of left and right rear wheels straddling a heel. . The seedling supply devices 4L, 4R supply seedlings to the seedling planting bodies 25, 25, 25, 25. The operator can perform an operation of sitting on the operator seats 70L and 70R and supplying seedlings to the seedling supply devices 4L and 4R.

図１０は、他の実施例を示す全体側面図であり、ボンネット８３を跨ぐように配置した支持フレーム８４の基部を機体前部の左右ステップ７１Ｌ，７１Ｒに固定し、該支持フレーム８４の上部に物置台８５を前部回動支点８６周りに後部が上下回動自在に装着している。そして、物置台８５の後部には弾性体よりなる係合フック８７を設けて、支持フレーム８４の後部に固定した横杆８８に係合する構成となっている。従って、物置台８５後部の係合フック８７を横杆８８に係合させれば、物置台８５は支持フレーム８４の上部に固定された状態となり、物置台８５の後部を上方に引き上げて、横杆８８から係合フック８７を外せば、物置台８５は前部回動支点８６周りに後部を上方に回動できる。   FIG. 10 is an overall side view showing another embodiment, in which the base portion of the support frame 84 arranged so as to straddle the bonnet 83 is fixed to the left and right steps 71L and 71R on the front side of the body, and the upper portion of the support frame 84 is fixed. The storage base 85 is mounted around the front rotation fulcrum 86 so that the rear portion can freely rotate up and down. Further, an engagement hook 87 made of an elastic body is provided at the rear part of the storage table 85, and is configured to engage with a horizontal bar 88 fixed to the rear part of the support frame 84. Therefore, when the engagement hook 87 at the rear part of the storage table 85 is engaged with the horizontal bar 88, the storage table 85 is fixed to the upper part of the support frame 84, and the rear part of the storage table 85 is pulled upward to be sideways. If the engagement hook 87 is removed from the hook 88, the storage table 85 can rotate the rear part upward around the front rotation fulcrum 86.

図１０の実線で示すように、物置台８５後部の係合フック８７を横杆８８に係合させて物置台８５を支持フレーム８４の上部に固定させた状態では、物置台８５上に２個のタンクＴを載置してフック８５ａに両端を係止した板ゴムバンドＢで固定すれば、灌水用のタンクＴが搭載でき、また、苗を収容可能なコンテナＣを設置しても良い。   As shown by the solid line in FIG. 10, in the state where the engagement hook 87 at the rear part of the object table 85 is engaged with the horizontal bar 88 and the object table 85 is fixed to the upper part of the support frame 84, two pieces are placed on the object table 85. The tank T for irrigation can be mounted and a container C that can store seedlings may be installed.

また、物置台８５上に何も載せないで、横杆８８から係合フック８７を外して前部回動支点８６周りに物置台８５の後部を上方に回動させれば、ボンネット８３の上方は開放されるので、ボンネット８３にあるガソリンの給油蓋８３ａを外して、作業性良く給油作業が行える。更に、ボンネット８３の上方は開放されているので、ボンネット８３を機体から取り外すことも容易に行え、エンジン５の点火プラグの交換やエンジン５及びミッションケース８の点検及び修理作業が容易に行える。   Further, if nothing is placed on the storage table 85, the engagement hook 87 is removed from the reed 88 and the rear portion of the storage table 85 is rotated upward around the front rotation fulcrum 86, the upper portion of the hood 83. Is opened, the gasoline refueling lid 83a in the bonnet 83 is removed, and refueling work can be performed with good workability. Furthermore, since the upper part of the bonnet 83 is open, the bonnet 83 can be easily removed from the airframe, and the spark plug of the engine 5 can be easily replaced, and the engine 5 and the transmission case 8 can be easily inspected and repaired.

そして、本例の苗植機は、乗用型の苗植機として特に、以下（１）〜（１１）のように構成したものである。
（１）本例の苗植機は、左右一対の前輪７，７と左右一対の後輪６，６を備えた走行車体２と、圃場に苗を植付ける苗植付け体２５…と、該苗植付け体２５…に苗を供給する苗供給装置４Ｌ，４Ｒと、該苗供給装置４Ｌ，４Ｒに苗を補給する作業を行う作業者が座る作業者用座席７０Ｌ，７０Ｒとを備えた苗植機において、前記作業者用座席７０Ｌ，７０Ｒを、前記前輪７，７の車軸１７，１７位置より後側で且つ前記後輪６，６の車軸１０，１０位置より前側で前記苗供給装置４Ｌ，４Ｒの左右方向外側近傍に前記苗供給装置４Ｌ，４Ｒに向って機体内側向き姿勢で着座可能に設けたものである。 And especially the seedling transplanter of this example is comprised as following (1)-(11) as a riding type seedling transplanter.
(1) The seedling planting machine of this example includes a traveling vehicle body 2 having a pair of left and right front wheels 7, 7 and a pair of left and right rear wheels 6, 6, a seedling planting body 25 for planting seedlings in a farm field, and the seedlings. A seedling transplanter provided with seedling supply devices 4L and 4R for supplying seedlings to the planted bodies 25, and worker seats 70L and 70R on which workers who perform operations for supplying seedlings to the seedling supply devices 4L and 4R sit. The worker seats 70L and 70R are placed on the rear side of the front wheels 7 and 7 on the axles 17 and 17 position and on the rear wheels 6 and 6 on the front side of the axles 10 and 10 with the seedling supply devices 4L and 4R. Is provided so that it can be seated in the posture toward the inside of the body toward the seedling supply devices 4L, 4R.

よって、作業者が、左右横向き姿勢で作業者用座席７０Ｌ，７０Ｒに着座して苗供給装置４Ｌ，４Ｒに容易に能率よく苗を補給でき、そして、機体の進行方向前方及び後方の両方向を容易に確認できて、機体の操縦を適確に行なえ、作業者が安心して乗車でき、且つ、圃場に植付けられた苗の植付け状態を容易に確認でき、不適正な植付け状態になったときの対応を迅速に行うことができて良好な植付け作業が行える。更に、作業者用座席７０Ｌ，７０Ｒの重量とその座席に座った作業者の体重は、前後車輪６，６，７，７の各車軸１０，１０，１７，１７の前後間で作用するので、前輪６，６と後輪７，７の両方の車輪の接地圧が高まり、よって、前輪７，７の浮き上がりが抑制されて、苗の植付が良好に行なえ、また、直進性も向上し、苗の植付位置の左右のずれも生じ難くなる。
（２）本例の苗植機は、（１）の構成を備えるとともに、前記走行車体２の前部側にエンジン５及びミッションケース８を設け、該ミッションケース８の左右両側部に前後に長い走行用の伝動ケース９，９の前部を回動自在に取付け、該走行用の伝動ケース９，９の後部側面から突出させた車軸１０，１０に前記後輪６，６を装着し、該後輪６，６を上下動するよう前記走行用の伝動ケース９，９を回動させる駆動手段１２を前記走行用の伝動ケース９，９に連結し、前記ミッションケース８内の動力を前記走行用の伝動ケース９，９内の伝動機構を介して前記後輪６，６の車軸１０，１０に伝動して前記後輪６，６を駆動回転する構成とし、前記走行車体２に連結したハンドルフレーム２ｂの後部に歩行操縦用の操縦ハンドル２を前記後輪６，６の車軸１０，１０より後方に位置する状態で取付け、前記作業者用座席７０Ｌ，７０Ｒを機体側面視で前記後輪６，６の上方に座席の一部がオーバーラップするように配置したものである。 Therefore, the operator can easily and efficiently replenish the seedling supply devices 4L and 4R by sitting on the operator seats 70L and 70R in the left and right sideways posture, and easily forward and backward in the direction of travel of the aircraft. The operator can control the aircraft properly, the operator can get on with peace of mind, the planting state of the seedlings planted in the field can be easily confirmed, and the plant is in an inappropriate planting state Can be carried out quickly and good planting work can be performed. Further, since the weight of the worker seats 70L and 70R and the weight of the worker sitting on the seats act between the front and rear axles 10, 10, 17, and 17 of the front and rear wheels 6, 6, 7, and 7, respectively. The contact pressure of both the front wheels 6 and 6 and the rear wheels 7 and 7 is increased, so that the lifting of the front wheels 7 and 7 is suppressed, so that seedlings can be planted well, and straightness is also improved. Misalignment of the right and left of the seedling planting position is less likely to occur.
(2) The seedling transplanter of the present example has the configuration of (1) and is provided with the engine 5 and the transmission case 8 on the front side of the traveling vehicle body 2 and is long in the front and rear sides on the left and right sides of the transmission case 8. A front part of the traveling transmission case 9, 9 is rotatably attached, and the rear wheels 6, 6 are mounted on axles 10, 10 projecting from the rear side surface of the traveling transmission case 9, 9; A driving means 12 for rotating the traveling transmission cases 9 and 9 to move the rear wheels 6 and 6 up and down is connected to the traveling transmission cases 9 and 9, and the power in the transmission case 8 is used for the traveling. A handle connected to the traveling vehicle body 2 is configured to drive and rotate the rear wheels 6 and 6 by being transmitted to the axles 10 and 10 of the rear wheels 6 and 6 through a transmission mechanism in the transmission case 9 and 9. A steering handle 2 for walking maneuvering is provided at the rear part of the frame 2b. , 6 is mounted in a state of being positioned rearward of the axles 10 and 10, and the operator seats 70L and 70R are arranged so that a part of the seat overlaps above the rear wheels 6 and 6 in a side view of the body. Is.

よって、（１）の構成の苗植機が奏する上記効果を奏するとともに、以下の効果を奏する。すなわち、歩行型の機体構成として機体のコンパクト化と簡略化が図れる。また、圃場端などで機体を旋回させるときに、機体後部の操縦ハンドル２を操縦者が押し下げて後輪６，６の車軸１０，１０を支点に機体を後側に傾かせて前輪７，７を浮上させ四輪接地状態から二輪接地状態にして機体を旋回させることがあるが、この構成とした苗植機では後輪６，６の車軸１０，１０より前側に作業者用座席７０Ｌ，７０Ｒが位置しているので、操縦ハンドル２の押し下げ時に作業者用座席７０Ｌ，７０Ｒに作業者が着座していると作業者の体重により操縦ハンドル２の押し下げが容易に行なえない。しかし、機体の旋回時には作業者用座席７０Ｌ，７０Ｒに着座した作業者は機体外に降りているので、作業者用座席７０Ｌ，７０Ｒに着座した作業者の体重が操縦ハンドル２の押し下げ時の大きな負荷となることがなく、また、走行用の伝動ケース９，９がその前部側を支点に回動して機体旋回前に後輪６，６を下降すると後輪６，６が機体前側に移動することになり、そして、作業者用座席７０Ｌ，７０Ｒが機体側面視で後輪６，６の上方に座席の一部がオーバーラップしているので、操縦ハンドル２を押し下げて後輪６，６の車軸１０，１０を支点に機体を後側に傾かせると、作業者用座席７０Ｌ，７０Ｒが比較的大きく後方に移動することになり、操縦ハンドル２の押し下げ時に、作業者用座席７０Ｌ，７０Ｒが機体側面視で後輪６，６の車軸１０，１０上方位置近傍に移動して、作業者用座席７０Ｌ，７０Ｒの重量による操縦ハンドル２の押し下げ時の負荷が小さくなって、機体の旋回操作が容易に行なえる。
（３）本例の苗植機は、（１）の構成を備えるとともに、歩行操縦用の操縦ハンドル２を前記後輪６，６の車軸１０，１０より後方位置に設け、前記苗植付け体２５…を、先端が下方に向いたくちばし状の苗植付け体として、該苗植付け体２５…が苗を上方から受け入れて下降し圃場に突入したとき下部を開いて苗を圃場に放出しその後上昇するよう動作して苗を圃場に植付ける構成とし、前記苗供給装置４を、苗を上方から受け入れて内側に苗を収容する複数の苗収容体２９…をループ状に互いに連結して前後に配置した軸５１，５１の回りを機体平面視で前後方向に長い長円状軌跡で周回移動させて該軌跡の後側で前記苗植付け体２５…に上方から苗を落下供給する構成とし、前記苗植付け体２５…を前記後輪６，６の車軸１０，１０位置より後側に配置し、前記苗収容体２９…が周回する前後の軸５１，５１を前記左右の後輪６，６より機体内側で、且つ、前記苗収容体２９…が周回する前側の軸５１を前記後輪６，６の車軸１０，１０位置より前側で、前記苗収容体２９…が周回する後側の軸５１を前記後輪６，６の車軸１０，１０位置より後側に配置し、前記作業者用座席７０Ｌ，７０Ｒを、前記苗供給装置４の前側部の左右方向外側近傍で前記苗供給装置４に向かって機体内側向き姿勢で着座可能に設け、前記後輪６，６の後側で機体後部に設けた操縦ハンドル２の左右方向外側に、作業者が立って前に歩きながら前記苗供給装置４の後側に苗を補給する作業を可能とする作業空間Ｗを形成したものである。 Therefore, the above-described effect produced by the seedling transplanter having the configuration (1) is exhibited, and the following effects are produced. In other words, the airframe can be made compact and simplified as a walking-type airframe structure. Further, when the vehicle is turned at the end of the field, the operator pushes down the steering handle 2 at the rear of the vehicle and tilts the vehicle to the rear with the axles 10 and 10 of the rear wheels 6 and 6 as fulcrums. May be turned from the four-wheel grounding state to the two-wheel grounding state, and the seedling transplanter configured as described above may have worker seats 70L and 70R in front of the axles 10 and 10 of the rear wheels 6 and 6. Therefore, if the operator is seated on the operator seats 70L and 70R when the steering handle 2 is pushed down, the steering handle 2 cannot be pushed down easily due to the weight of the worker. However, since the operator seated on the operator seats 70L and 70R is getting out of the aircraft when the aircraft is turning, the weight of the operator seated on the operator seats 70L and 70R is large when the control handle 2 is pushed down. There is no load, and when the traveling transmission cases 9 and 9 turn around the front side and lower the rear wheels 6 and 6 before turning the body, the rear wheels 6 and 6 are moved to the front side of the body. The operator seats 70L and 70R are partly overlying the rear wheels 6 and 6 in a side view of the fuselage, so that the steering wheel 2 is pushed down to lower the rear wheels 6 and 6 6 is tilted rearward with the axles 10 and 10 as fulcrums, the operator seats 70L and 70R move relatively rearward. When the steering handle 2 is pushed down, the operator seat 70L and 70R is the rear wheel 6 Go to the vicinity of the axle 10, 10 upper position, the operator seat 70L, load when depressing the steering wheel 2 by weight of 70R becomes smaller, easily turning operation of the aircraft.
(3) The seedling transplanter of the present example has the configuration of (1), and the steering handle 2 for walking control is provided at a rear position from the axles 10 and 10 of the rear wheels 6 and 6, and the seedling planting body 25 is provided. As a beak-shaped seedling planting body with the tip facing downward, when the seedling planting body 25 receives the seedling from above and descends and enters the field, the lower part is opened and the seedling is released to the field and then rises. The seedling supply device 4 is arranged in such a manner that a plurality of seedling containers 29... For receiving seedlings from above and storing seedlings inside are connected to each other in a loop shape. Around the shafts 51, 51 is moved around a long oval locus in the front-rear direction in plan view of the body, and the seedling is dropped and supplied to the seedling planting body 25. The planted body 25 is placed at the 10th and 10th axles of the rear wheels 6 It is arranged on the rear side, and the front and rear shafts 51, 51 around which the seedling container 29 circulates are located on the inner side of the left and right rear wheels 6, 6, and the front shaft around which the seedling container 29 circulates. 51 is disposed on the front side of the axles 10 and 10 position of the rear wheels 6 and 6, and the rear shaft 51 around which the seedling container 29 rotates is disposed on the rear side of the axles 10 and 10 position of the rear wheels 6 and 6. The operator seats 70L and 70R are provided so as to be seated in the posture inward of the body toward the seedling supply device 4 in the vicinity of the outer side in the left-right direction of the front side portion of the seedling supply device 4, and the rear wheels 6, 6 A work space W is formed on the rear side of the steering handle 2 provided at the rear side of the aircraft on the rear side so that the worker can stand and walk forward to replenish seedlings to the rear side of the seedling supply device 4. It is what.

よって、（１）の構成の苗植機が奏する上記効果を奏するとともに、以下の効果を奏する。すなわち、作業者用座席７０Ｌ，７０Ｒを苗供給装置４の左右外側方に配置しながらも、苗供給装置４を左右に幅狭く形成できて機体をコンパクトに構成でき、また、作業者は、作業者用座席７０Ｌ，７０Ｒに着座して苗供給装置４の前側へ容易に且つ楽に苗の補給が行なえ、また、軟弱な圃場などで作業者が作業者用座席７０Ｌ，７０Ｒに座らずに、後輪６，６の後側に立って機体の進行とともに歩きながら苗供給装置４の後側へ容易に苗の補給が行なうことができる。更には、苗供給装置４の前側に対しては、作業者用座席７０Ｌ，７０Ｒに着座した作業者が苗の補給を行い、苗供給装置４の後側に対しては、後輪６，６の後側に立って機体の進行とともに歩く作業者が苗の補給を行い、一層容易に能率良く作業を行うこともできる。
（４）本例の苗植機は、（２）の構成を備えるとともに、前記前輪７，７を前記走行用の伝動ケース９，９の回動軸心より前側に配置し、前記作業者用座席７０Ｌ，７０Ｒは、機体側面視で前記走行用の伝動ケース９，９の回動軸心Ｘの上方に配置したものである。 Therefore, the above-described effect produced by the seedling transplanter having the configuration (1) is exhibited, and the following effects are produced. That is, while the operator seats 70L and 70R are arranged on the left and right outer sides of the seedling supply device 4, the seedling supply device 4 can be formed narrowly on the left and right sides, and the machine body can be configured compactly. It is possible to easily and easily replenish seedlings to the front side of the seedling supply device 4 by sitting on the operator seats 70L and 70R, and the operator does not sit on the operator seats 70L and 70R in the soft field or the like. It is possible to easily replenish seedlings to the rear side of the seedling supply device 4 while standing on the rear side of the wheels 6 and 6 and walking with the progress of the aircraft. Further, the operator seated on the operator seats 70L and 70R supplies the seedlings to the front side of the seedling supply device 4, and the rear wheels 6 and 6 are supplied to the rear side of the seedling supply device 4. An operator who stands on the back side and walks with the progress of the aircraft can replenish seedlings, and can work more easily and efficiently.
(4) The seedling transplanter of the present example has the configuration of (2), and the front wheels 7 and 7 are arranged in front of the rotation axis of the transmission cases 9 and 9 for traveling. The seats 70L and 70R are arranged above the rotational axis X of the traveling transmission cases 9 and 9 in a side view of the body.

よって、（２）の構成の苗植機が奏する上記効果を奏するとともに、以下の効果を奏する。すなわち、前記作業者用座席７０Ｌ，７０Ｒは、機体側面視で前記走行用の伝動ケース９，９の回動軸心の上方に配置したので、後輪６，６が上下しても作業者用座席７０Ｌ，７０Ｒと接触しにくく、よって、作業者用座席７０Ｌ，７０Ｒをできるだけ低く配置できて、機体をコンパクトに構成でき、且つ、機体の重心を低くできて、機体の操縦性が良好になり、また、走行安定性が向上して苗の植付が良好に行なえる。
（５）本例の苗植機は、（２）の構成を備えるとともに、前記後輪６，６を大径車輪とし前記前輪７，７を小径車輪とし、前記作業者用座席７０Ｌ，７０Ｒの機体左右方向内側下方にステップ７１Ｌ，７１Ｒを設け、該ステップ７１Ｌ，７１Ｒを機体側面視で前記作業者用座席７０Ｌ，７０Ｒの下方位置から前記前輪７，７の上方位置に延設したものである。 Therefore, the above-described effect produced by the seedling transplanter having the configuration (2) is produced and the following effect is produced. That is, since the operator seats 70L and 70R are arranged above the rotational axis of the traveling transmission cases 9 and 9 in a side view of the machine body, even if the rear wheels 6 and 6 are moved up and down, It is difficult to contact the seats 70L and 70R, so that the operator seats 70L and 70R can be arranged as low as possible, the aircraft can be configured compactly, the center of gravity of the aircraft can be lowered, and the maneuverability of the aircraft is improved. In addition, the running stability is improved, so that seedlings can be planted well.
(5) The seedling transplanter of this example has the configuration of (2), the rear wheels 6 and 6 are large-diameter wheels, the front wheels 7 and 7 are small-diameter wheels, and the operator seats 70L and 70R Steps 71L and 71R are provided in the lower side in the left and right direction of the machine body, and the steps 71L and 71R are extended from the lower position of the operator seats 70L and 70R to the upper position of the front wheels 7 and 7 in a side view of the machine body. .

よって、（２）の構成の苗植機が奏する上記効果を奏するとともに、以下の効果を奏する。すなわち、機体前部側から作業者が容易にステップ７１Ｌ，７１Ｒ上に乗降りでき、圃場端に至ったときに機体から容易に且つ迅速に降りれて機体の旋回操作を容易に且つ迅速に行なえる。
（６）本例の苗植機は、（３）の構成を備えるとともに、前記苗植付け体２５…は複数体左右に並べて設け、前記苗供給装置４Ｌ，４Ｒは、機体の左右二箇所で前記苗収容体２９…が機体平面視で前後方向に長い長円状軌跡で周回移動するように左右に二つ並べて設け、該左右の苗供給装置４Ｌ，４Ｒによって前記複数の苗植付け体２５…のそれぞれに苗を供給するように構成し、前記作業者用座席７０Ｌ，７０Ｒは、前記左右の苗供給装置４Ｌ，４Ｒのそれぞれ左右方向外側方近傍に位置するようにして左右に二つ設けたものである。 Therefore, the above-described effect produced by the seedling transplanter having the configuration (2) is produced and the following effect is produced. That is, the operator can easily get on and off the steps 71L and 71R from the front side of the machine body, and can easily and quickly get off the machine body when the farm reaches the end of the field, and the turning operation of the machine can be performed easily and quickly. .
(6) The seedling planting machine of the present example has the configuration of (3), and the seedling planting bodies 25 are arranged side by side on the left and right sides, and the seedling supply devices 4L and 4R are arranged at two locations on the left and right sides of the machine body. Two seedling containers 29... Are arranged side by side so that the seedling containers 29... Move in a long oval locus in the front-rear direction in a plan view of the body, and the plurality of seedling planting bodies 25. Each of the operator seats 70L, 70R is configured to supply seedlings to each of the two seedling supply devices 4L, 4R. It is.

よって、（３）の構成の苗植機が奏する上記効果を奏するとともに、以下の効果を奏する。すなわち、左右の苗供給装置４Ｌ，４Ｒによって左右に複数設けた苗植付け体２５…のそれぞれに苗が供給されて該複数の苗植付け体２５…で複数条同時に植付けが行なえ、更に、左右の苗供給装置４Ｌ，４Ｒのそれぞれ左右方向外側方近傍に設けた作業者用座席７０Ｌ，７０Ｒに作業者が座って、左右の苗供給装置４Ｌ，４Ｒに苗を補給できるので、能率よく苗植作業が行なえ、また、作業者用座席７０Ｌ，７０Ｒを左右に設けているので、作業者の体重による機体の左右重量バランスの悪化も小さくできる。
（７）本例の苗植機は、（１），（２）又は（３）の構成を備えるとともに、前記後輪６，６の車軸１０，１０が上下するよう該車軸１０，１０を支持する支持部材９，９を動作可能に設け、前記作業者用座席７０Ｌ，７０Ｒを、少なくとも前記後輪６，６の車軸１０，１０又は該車軸１０，１０を支持する支持部材９，９に取付けた座席支持部材７３，７２で支持し、該座席支持部材７３，７２に、前記後輪６，６の車軸１０，１０が上下しても前記作業者用座席７０Ｌ，７０Ｒが前後に傾かないようにする姿勢維持機構を設けたものである。 Therefore, the above-described effect produced by the seedling transplanter having the configuration (3) is produced and the following effect is produced. That is, seedlings are supplied to each of a plurality of seedling planting bodies 25 provided on the left and right by the left and right seedling supply devices 4L and 4R, and a plurality of seedling planting bodies 25 can be planted simultaneously and a plurality of seedlings can be planted simultaneously. Since an operator can sit on the operator seats 70L and 70R provided in the vicinity of the laterally outward sides of the supply devices 4L and 4R and replenish seedlings to the left and right seedling supply devices 4L and 4R, the seedling work can be efficiently performed. In addition, since the operator seats 70L and 70R are provided on the left and right, the deterioration of the left and right weight balance of the aircraft due to the weight of the operator can be reduced.
(7) The seedling transplanter of this example has the configuration of (1), (2) or (3) and supports the axles 10 and 10 so that the axles 10 and 10 of the rear wheels 6 and 6 move up and down. The support members 9 and 9 are operably provided, and the worker seats 70L and 70R are attached to at least the axles 10 and 10 of the rear wheels 6 and 6 or the support members 9 and 9 that support the axles 10 and 10, respectively. Even if the axles 10 and 10 of the rear wheels 6 and 6 are moved up and down on the seat support members 73 and 72, the operator seats 70L and 70R do not tilt forward and backward. A posture maintaining mechanism is provided.

よって、（１），（２）又は（３）の構成の苗植機が奏する上記効果を奏するとともに、以下の効果を奏する。すなわち、作業者用座席７０Ｌ，７０Ｒを、少なくとも前記後輪６，６の車軸１０，１０又は該車軸１０，１０を支持する支持部材９，９に取付けた座席支持部材７３，７２で支持するので、作業者用座席７０Ｌ，７０Ｒに着座した作業者の体重は、後輪６，６の車軸１０，１０又は該車軸１０，１０を支持する支持部材９，９に直接作用し、エンジン５やミッションケース８に対してや苗植付け体２５…や苗供給装置４を支持する部材などに対して直接作用することがないので、機体の軽量化が図れる。また、後輪６，６を上下動する駆動手段１２にかかる負荷を小さく抑えることができ、後輪６，６の上下動を軽快に且つスムーズに動作させることができる。更に、座席支持部材７３，７２に、前記後輪６，６の車軸１０，１０が上下しても前記作業者用座席７０Ｌ，７０Ｒが前後に傾かないようにする姿勢維持機構を設けたので、作業者用座席７０Ｌ，７０Ｒを後輪６，６の車軸１０，１０又は該車軸１０，１０を支持する支持部材９，９に取付けた座席支持部材７３，７２で支持するものとしながらも、後輪６，６が上下動しても作業者用座席７０Ｌ，７０Ｒが前後に傾いたりせず、乗車時の作業者の安定性が一層向上し、苗供給装置４への苗の補給作業を能率良く行える。
（８）本例の苗植機は、（７）の構成を備えるとともに、前記前輪７，７の車軸１７，１７又は該車軸１７，１７を支持する支持部材１６ａ，１６ａと、前記後輪６，６の車軸１０，１０又は該車軸１０，１０を支持する支持部材９，９とに、それぞれ左右方向の軸心まわりに回動自在に連結し且つ前輪側或は後輪側のいずれか一方或は両方で前後方向に摺動自在に連結して、前記後輪６，６の車軸１０，１０が上下しても前後の傾き変動が生じない前後に長い連結フレーム７３，７３を設け、該連結フレーム７３，７３に、上部に前記作業者用座席７０Ｌ，７０Ｒを取付けた座席支持フレーム７２，７２の下部を取付けて前記姿勢維持機構を構成したものである。 Therefore, while exhibiting the above-described effect produced by the seedling transplanter having the configuration of (1), (2) or (3), the following effect is achieved. That is, the operator seats 70L and 70R are supported by at least the axles 10 and 10 of the rear wheels 6 and 6 or the seat support members 73 and 72 attached to the support members 9 and 9 that support the axles 10 and 10, respectively. The weight of the operator seated on the operator seats 70L and 70R directly acts on the axles 10 and 10 of the rear wheels 6 and 6 or the support members 9 and 9 that support the axles 10 and 10, and the engine 5 and the mission. Since it does not act directly on the case 8, the seedling planting body 25, or the member that supports the seedling supply device 4, the weight of the machine body can be reduced. In addition, the load applied to the driving means 12 that moves the rear wheels 6 and 6 up and down can be reduced, and the vertical movement of the rear wheels 6 and 6 can be operated lightly and smoothly. Furthermore, since the seat support members 73 and 72 are provided with a posture maintaining mechanism that prevents the worker seats 70L and 70R from tilting back and forth even when the axles 10 and 10 of the rear wheels 6 and 6 are moved up and down. The worker's seats 70L and 70R are supported by the axles 10 and 10 of the rear wheels 6 and 6, or the seat support members 73 and 72 attached to the support members 9 and 9 that support the axles 10 and 10. Even if the wheels 6 and 6 move up and down, the operator seats 70L and 70R are not tilted back and forth, so that the stability of the worker when riding is further improved, and the seedling supply device 4 is efficiently replenished. Can do well.
(8) The seedling transplanter of the present example has the configuration of (7), the axles 17 and 17 of the front wheels 7 and 7 or support members 16a and 16a that support the axles 17 and 17, and the rear wheel 6 , 6 or support members 9 and 9 that support the axles 10 and 10 so as to be pivotable about the left and right axial centers, respectively, and either the front wheel side or the rear wheel side Or, both are slidably connected in the front-rear direction, and long connecting frames 73, 73 are provided in the front-rear direction so that the front-rear tilt fluctuation does not occur even when the axles 10, 10 of the rear wheels 6, 6 are moved up and down. The posture maintaining mechanism is configured by attaching lower portions of seat support frames 72, 72 having the operator seats 70L, 70R attached to the upper portions of the connecting frames 73, 73.

よって、（７）の構成の苗植機が奏する上記効果を奏するとともに、以下の効果を奏する。すなわち、作業者用座席７０Ｌ，７０Ｒの支持機構と前記姿勢維持機構を簡略な構造に構成でき、一層、機体の軽量化を図ることができる。
（９）本例の苗植機は、（３）の構成を備えるとともに、前記作業者用座席７０Ｌ，７０Ｒの後側近傍で機体側面視で前記後輪６，６の車軸１０，１０の上方位置に前記苗供給装置４に補給する苗を収容可能なコンテナＣを設置可能に設けたものである。 Therefore, the above-described effect produced by the seedling planting machine having the configuration (7) is produced and the following effect is produced. That is, the support mechanism for the worker seats 70L and 70R and the posture maintaining mechanism can be configured in a simple structure, and the weight of the fuselage can be further reduced.
(9) The seedling transplanter of the present example has the configuration of (3) and is located above the rear axles 6 and 6 on the axles 10 and 10 in the side view of the body in the vicinity of the rear sides of the operator seats 70L and 70R. A container C capable of accommodating seedlings to be replenished to the seedling supply device 4 is provided at a position so as to be installable.

よって、（３）の構成とした苗植機が奏する上記効果を奏するとともに、以下の効果を奏する。すなわち、苗供給装置４に補給する苗を収容可能なコンテナＣを、作業者用座席７０Ｌ，７０Ｒの後側近傍で機体側面視で後輪６，６の車軸１０，１０の上方位置に設置できるので、作業者は、作業者用座席７０Ｌ，７０Ｒに着座して苗補給作業をする場合も、後輪６，６の後側に立って苗補給作業をする場合も、コンテナＣから苗を容易に取出して苗供給装置４に苗を補給することができ、容易に且つ能率良く作業が行なえる。また、二輪接地状態として旋回すべく機体を後輪６，６の車軸１０，１０まわりに傾けたとき、コンテナＣが後輪６，６の車軸１０，１０の上方位置に設置されているので、コンテナＣ内に収容された苗が飛び出してしまうことが生じ難くなる。
（１０）本例の苗植機は、（２）の構成を備えるとともに、苗植付け体２５…に灌水用の水を供給可能に構成し、灌水用の水を蓄えるタンクＴ…を前記後輪６，６の機体左右方向内側で機体側面視において前記後輪６，６の車軸１０，１０付近に設けたタンク支持台７６，７６上に載置可能に設けたものである。 Accordingly, the above-described effect produced by the seedling transplanter configured as (3) is produced and the following effect is produced. That is, the container C that can store seedlings to be replenished to the seedling supply device 4 can be installed in the vicinity of the rear side of the operator seats 70L and 70R and above the axles 10 and 10 of the rear wheels 6 and 6 in a side view of the body. Therefore, it is easy for an operator to take seedlings from the container C when sitting on the operator seats 70L and 70R and performing seedling replenishment work, or when standing on the rear side of the rear wheels 6 and 6 and performing seedling replenishment work. Thus, the seedling supply device 4 can be replenished with seedlings and can be easily and efficiently operated. In addition, when the aircraft is tilted around the axles 10 and 10 of the rear wheels 6 and 6 to turn in the two-wheel grounding state, the container C is installed above the axles 10 and 10 of the rear wheels 6 and 6. It is difficult for the seedling stored in the container C to jump out.
(10) The seedling planting machine of the present example has the configuration of (2) and is configured so that water for irrigation can be supplied to the seedling planting bodies 25..., And the tank T. 6 and 6 are provided so as to be able to be placed on tank support bases 76 and 76 provided in the vicinity of the axles 10 and 10 of the rear wheels 6 and 6 when viewed from the side of the body inside the left and right direction of the body.

よって、（２）の構成とした苗植機が奏する上記効果を奏するとともに、以下の効果を奏する。すなわち、灌水用の水を蓄えるタンクＴ…を機体側面視で前記後輪６，６の車軸１０，１０付近に設けたタンク支持台７６，７６上に載置するので、タンクＴ内の水の重量による操縦ハンドル２の押し下げ時の負荷を小さくできて、機体の旋回操作が容易に行なえる。
（１１）本例の苗植機は、（２）の構成を備えるとともに、苗植付け体２５…に灌水用の水を供給可能に構成し、灌水用の水を蓄えるタンクＴ…を機体側面視で前記後輪６，６の車軸１０，１０付近に設けたタンク支持台７６，７６上に載置可能に設け、前記作業者用座席７０Ｌ，７０Ｒの後側で機体側面視で前記後輪６，６の車軸１０，１０の上方位置で且つ機体側面視で前記タンク支持台７６，７６上に載置した前記タンクＴ…の上方位置に前記苗供給装置４に補給する苗を収容可能なコンテナＣを設置可能に設けたものである。 Accordingly, the above-described effect produced by the seedling transplanter configured as (2) is produced and the following effect is produced. That is, since the tanks T for storing water for irrigation are placed on the tank support bases 76 and 76 provided near the axles 10 and 10 of the rear wheels 6 and 6 in a side view of the airframe, the water in the tank T is stored. The load when the steering handle 2 is pushed down due to the weight can be reduced, and the aircraft can be easily turned.
(11) The seedling planting machine of the present example has the configuration of (2) and is configured so that water for irrigation can be supplied to the seedling planting bodies 25... The rear wheels 6 and 6 are provided so as to be able to be placed on tank support bases 76 and 76 provided in the vicinity of the axles 10 and 10, and the rear wheels 6 are viewed from the side of the fuselage behind the worker seats 70L and 70R. , 6 above the axles 10 and 10 and a container capable of accommodating seedlings to be replenished to the seedling supply device 4 at a position above the tanks T placed on the tank support pedestals 76 in a side view of the body. C is provided so that it can be installed.

よって、（２）の構成とした苗植機が奏する上記効果を奏するとともに、以下の効果を奏する。すなわち、タンク支持台７６，７６上に載置した灌水用のタンクＴ…の上方位置に苗供給装置４に補給する苗を収容可能なコンテナＣを設置可能に設けたので、機体をコンパクト構成でき、且つ、旋回操縦時にコンテナＣ内の苗が飛び出したりしにくく、また、操縦ハンドル２を押し下げて旋回操縦する時の負荷を小さくできて、機体の旋回操作が容易に行なえる。   Accordingly, the above-described effect produced by the seedling transplanter configured as (2) is produced and the following effect is produced. That is, since the container C capable of accommodating the seedlings to be supplied to the seedling supply device 4 is provided above the irrigation tanks T placed on the tank support bases 76 and 76 so that the seedlings to be supplied to the seedling supply device 4 can be installed, the airframe can be configured compactly. In addition, the seedling in the container C is difficult to jump out during turning operation, and the load when the turning handle 2 is pushed down to perform turning operation can be reduced, so that the turning operation of the aircraft can be performed easily.

苗植機の側面図。The side view of a seedling transplanter. 苗植機の平面図。The top view of a seedling transplanter. 苗供給部と作業者用座席を省略した状態の苗植機の平面図。The top view of the seedling transplanter of the state which abbreviate | omitted the seedling supply part and the operator's seat. 苗植装置と苗供給装置を示す側面図。The side view which shows a seedling planting apparatus and a seedling supply apparatus. 伝動ケースを一部展開し断面開示した苗植装置の背面図。The rear view of the seedling planting device which expanded the transmission case partially and disclosed the section. 苗収容体の連結構成を示す斜視図。The perspective view which shows the connection structure of a seedling container. コンテナ係止部材にコンテナを設置した状態を示す斜視図。The perspective view which shows the state which installed the container in the container latching member. タンク支持台７６にタンクＴを固定した状態を示す部分拡大側面図。The partial expanded side view which shows the state which fixed the tank T to the tank support stand 76. FIG. タンク支持台７６にタンクＴを固定した状態を示す部分拡大正面図。The partial enlarged front view which shows the state which fixed the tank T to the tank support stand 76. FIG. 他の実施例をしめす苗植機の側面図。The side view of the seedling transplanter which shows another Example.

符号の説明Explanation of symbols

１ 走行車体
２ 操縦ハンドル
３ 苗植付装置
４ 苗供給装置
７，７ 前輪
６，６ 後輪
２５ 苗植付け体
２５Ｆ （前側）苗植付け具
２５Ｒ （後側）苗植付け具
３３ （前側の）苗植付け具支持軸
３４ （後側の）苗植付け具支持軸
３９ 連結部材
４０ａ 第一昇降リンク
４０ｂ 第二昇降リンク
４０ａＳ 第一軸
４０ｂＳ 第二軸
４０ａＲ 回転軸
４４ｃ 従動体（従動ローラ）
４４ 作動アーム
４５ 左右連結ロッド
４６ カム
Ａ 駆動機構 DESCRIPTION OF SYMBOLS 1 Traveling vehicle body 2 Steering handle 3 Seedling planting device 4 Seedling supply device 7,7 Front wheel 6,6 Rear wheel 25 Seedling planting body 25F (front side) Seedling planting tool 25R (Rear side) Seedling planting tool 33 (Front side) Tool support shaft 34 (back side) seedling planting tool support shaft 39 Connecting member 40a First lifting link 40b Second lifting link 40aS First shaft 40bS Second shaft 40aR Rotating shaft 44c Driven body (driven roller)
44 Actuating arm 45 Left and right connecting rod 46 Cam A Drive mechanism

Claims (3)

機体に設けた第一軸４０ａＳに基部が回動自在に枢支された第一昇降リンク４０ａの先端部と該第一昇降リンク４０ａの下側で機体に設けた第二軸４０ｂＳに基部が回動自在に枢支された第二昇降リンク４０ｂの先端部とに、苗植付け具支持軸３３・３４回りに回動して開閉作動する２つの苗植付け具２５Ｆ・２５Ｒよりなる苗植付け体２５を装着し、駆動機構Ａにより第一昇降リンク４０ａ又は第二昇降リンク４０ｂを上下回動させて、苗植付け体２５を昇降する苗植機において、２つの苗植付け具２５Ｆ・２５Ｒを開閉作動させる作動アーム４４の基部を下側の昇降リンク４０ｂの基部を枢支している第二軸４０ｂＳに回動自在に装着し、機体に設けた回転軸４０ａＲに設けたカム４６の作用を受けて該作動アーム４４を設定したタイミングで２つの苗植付け具２５Ｆ・２５Ｒを開閉作動させる方向に移動させる従動体４４ｃを作動アーム４４の上部に設けたことを特徴とする苗植機。   The base portion rotates around the tip end portion of the first lifting link 40a pivotally supported on the first shaft 40aS provided on the machine body and the second shaft 40bS provided on the machine body below the first lifting link 40a. A seedling planting body 25 made up of two seedling planting tools 25F and 25R that pivots around the seedling planting tool support shafts 33 and 34 and opens and closes to the tip of the second lifting link 40b that is pivotally supported. An operation for opening and closing the two seedling planting tools 25F and 25R in the seedling planting machine that is mounted and the first lifting link 40a or the second lifting link 40b is vertically rotated by the drive mechanism A to raise and lower the seedling planting body 25. The base of the arm 44 is rotatably mounted on the second shaft 40bS pivotally supporting the base of the lower lift link 40b, and the operation is received by the action of the cam 46 provided on the rotary shaft 40aR provided on the machine body. Time with arm 44 set Seedling planting machine according to characterized in that a follower 44c to move the two planting members 25F · 25R in a direction to be opened and closed by grayed the top of the operating arm 44. 第一昇降リンク４０ａの先端部と第二昇降リンク４０ｂの先端部とに連結部材３９を設けて、該連結部材３９の左右両側に各々苗植付け体２５を装着したことを特徴とする請求項１記載の苗植機。   The connection member 39 is provided in the front-end | tip part of the 1st raising / lowering link 40a and the front-end | tip part of the 2nd raising / lowering link 40b, and the seedling planting body 25 was mounted | worn to the both right and left sides of this connection member 39, respectively. The seedling planting machine described. 連結部材３９の左右両側に装着した苗植付け体２５の各々の苗植付け具２５Ｆ・２５Ｒを長さ調節可能な左右連結ロッド４５を介して作動アーム４４に連結したことを特徴とする請求項２記載の苗植機。   The seedling planting tools 25F and 25R of the seedling planting body 25 mounted on both the left and right sides of the connecting member 39 are connected to the operating arm 44 via a left and right connecting rod 45 whose length is adjustable. Seedling planting machine.
JP2005183475A 2005-06-23 2005-06-23 Seedling planting machine Pending JP2007000066A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
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Publications (1)

Publication Number Publication Date
JP2007000066A true JP2007000066A (en) 2007-01-11

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Country Link
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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009284858A (en) * 2008-05-30 2009-12-10 Iseki & Co Ltd Vegetable seedling transplanter
JP2013074905A (en) * 2013-01-29 2013-04-25 Iseki & Co Ltd Transplanter
JP2017060516A (en) * 2016-11-29 2017-03-30 井関農機株式会社 Transplanter
JP2018011613A (en) * 2017-10-25 2018-01-25 井関農機株式会社 Transplanter

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009284858A (en) * 2008-05-30 2009-12-10 Iseki & Co Ltd Vegetable seedling transplanter
JP2013074905A (en) * 2013-01-29 2013-04-25 Iseki & Co Ltd Transplanter
JP2017060516A (en) * 2016-11-29 2017-03-30 井関農機株式会社 Transplanter
JP2018011613A (en) * 2017-10-25 2018-01-25 井関農機株式会社 Transplanter

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