JP2005341820A - Seedling transplanter - Google Patents

Seedling transplanter Download PDF

Info

Publication number
JP2005341820A
JP2005341820A JP2004162513A JP2004162513A JP2005341820A JP 2005341820 A JP2005341820 A JP 2005341820A JP 2004162513 A JP2004162513 A JP 2004162513A JP 2004162513 A JP2004162513 A JP 2004162513A JP 2005341820 A JP2005341820 A JP 2005341820A
Authority
JP
Japan
Prior art keywords
seedling
planting body
seedling planting
transmission
containers
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
JP2004162513A
Other languages
Japanese (ja)
Other versions
JP4631314B2 (en
Inventor
Eiichiro Kinoshita
木下  栄一郎
Shiro Katsuno
勝野  志郎
Masami Muranami
村並  昌実
Hajime Kitte
切手  肇
Hirotaka Doi
土井  宏貴
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Iseki and Co Ltd
Iseki Agricultural Machinery Mfg Co Ltd
Original Assignee
Iseki and Co Ltd
Iseki Agricultural Machinery Mfg Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Iseki and Co Ltd, Iseki Agricultural Machinery Mfg Co Ltd filed Critical Iseki and Co Ltd
Priority to JP2004162513A priority Critical patent/JP4631314B2/en
Publication of JP2005341820A publication Critical patent/JP2005341820A/en
Application granted granted Critical
Publication of JP4631314B2 publication Critical patent/JP4631314B2/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • AHUMAN NECESSITIES
    • A01AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01CPLANTING; SOWING; FERTILISING
    • A01C11/00Transplanting machines
    • A01C11/02Transplanting machines for seedlings

Abstract

<P>PROBLEM TO BE SOLVED: To facilitate the supply of seedlings to a seedling feeding apparatus and the assembly and adjustment of a seedling planting member by providing a transmission part of the seedling planting member with an intermittently driving mechanism to plant the seedling in a proper posture and continuously rotating and circulating the seedling feeding apparatus without intermittently stopping the motion. <P>SOLUTION: The seedling transplanter is provided with a lifting mechanism 3 placed at the right or left of transmission cases 18c, 18e, driving shafts 25, 27 to drive the lifting mechanism 3 and protruded to the right or left of the transmission cases 18c, 18e, and a transmission means 53b extended from the front side of the seedling planting member 4 to the back of the machine body to transmit power to the rotary shaft 55 at the right or left side to perform the circulation driving of a seedling holder 45... The transmission means 53b is positioned at the side of the transmission cases 18c, 18e having the lifting mechanism 3 attached to the seedling planting member 4 at the right or left direction of the machine body. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

本発明は、畑用の苗移植機に関するものである。   The present invention relates to a field seedling transplanter.

従来、下記特許文献1に示されるように、前輪と後輪とを左右両側に設け歩行操縦用の操縦ハンドルを後部に設けた走行装置と、昇降機構により昇降動し開閉機構により開閉動して圃場に苗を植付けるクチバシ状の苗植付け体と、上下に開口する筒状体と該筒状体の下側の開口部を開閉する底蓋とを有した複数の苗収容体を周回動させる構成として該苗収容体内に収容させた苗を前記苗植付け体に上方から落下供給する構成とした苗供給装置とを備えた歩行型苗移植機において、エンジンから前記苗植付け体への伝動部に、前記苗植付け体をその昇降軌跡の上位側箇所で一時的に停止させて昇降駆動する間欠駆動機構と該間欠駆動機構による停止時間を変更可能とする機構とを設け、前記苗供給装置を駆動する動力は前記間欠駆動機構より伝動上手側の伝動部から取り出して前記苗収容体が前記間欠駆動機構によって間欠的に停止することなく連続的に回動して周回駆動される構成としたものがある。   Conventionally, as shown in Patent Document 1 below, a front and rear wheels are provided on both left and right sides, and a traveling device provided with a steering handle for walking control at the rear, and a lifting mechanism is moved up and down by an opening and closing mechanism. A plurality of seedling containers having a beak-like seedling planting body for planting seedlings in a field, a cylindrical body that opens up and down, and a bottom lid that opens and closes an opening on the lower side of the cylindrical body are rotated. In a walking type seedling transplanter equipped with a seedling supply device configured to drop and supply seedlings contained in the seedling container from above to the seedling planting body as a configuration, in a transmission part from the engine to the seedling planting body , Provided with an intermittent drive mechanism for temporarily stopping the seedling planting body at an upper position of the lifting locus and a mechanism for changing the stopping time by the intermittent driving mechanism, and driving the seedling supply device The power to be transmitted is transmitted from the intermittent drive mechanism. Are those wherein seedling container is taken out from the transmission section of the upper side is intermittently configured to be driven circulates continuously rotated without being stopped by the intermittent drive mechanism.

上記歩行型苗移植機は、苗植付け体を、その昇降軌跡の上位側箇所で一時的に停止させて昇降駆動し、且つ、その停止時間を変更可能としているので、苗植付け体の動軌跡(機体の前進とともに苗植付け体が前方移動しつつ昇降動するときの軌跡)を変化させずに、苗植付株間を変更できて、苗を適正な姿勢で植付けられるものとなり、しかも、そのために間欠駆動機構を設けたものでありながら、苗供給装置は、間欠的に停止することなく連続的に回動して周回駆動されるので、苗供給装置への苗の補給を容易に行えるようになる。
特開2001−258315号公報
The walking-type seedling transplanting machine temporarily stops the seedling planting body at the upper position of the lifting locus and drives it to move up and down, and the stopping time can be changed. It is possible to change the seedling planting stock without changing the trajectory when the planting plant moves up and down while moving forward as the aircraft advances, so that the seedling can be planted in an appropriate posture, and for that reason, intermittent Although the drive mechanism is provided, the seedling supply device is continuously rotated without being intermittently stopped and is driven around, so that the seedling supply device can be easily replenished. .
JP 2001-258315 A

上記特許文献1記載の歩行型苗移植機は、苗植付け体には間欠駆動する伝動部を介して伝動し、一方、苗供給装置には間欠駆動させずに連続駆動する伝動部を介して伝動するので、苗植付け体への伝動部と苗供給装置への伝動部とが二系統に分岐して伝動する構成のものとなっている。そして、苗植付け体と苗供給装置とは上下に配置されるものなので、苗植付け体への伝動部と苗供給装置への伝動部とが接近して配置されるものとなり、更に、苗植付け体の左右一方側に苗植付け体への伝動部が配置され左右他方側に苗供給装置への伝動部が配置されたものとなっている。このため、苗植付け体の組み付けや調整などがし難いものとなっている。   The walking-type seedling transplanter described in Patent Document 1 is transmitted to a seedling planting body through a transmission unit that is intermittently driven, while the seedling supply device is transmitted through a transmission unit that is continuously driven without being intermittently driven. Therefore, the transmission part to the seedling planting body and the transmission part to the seedling supply device are divided into two lines and transmitted. And since the seedling planting body and the seedling feeding device are arranged one above the other, the transmission part to the seedling planting body and the transmission part to the seedling feeding device are arranged close to each other, and the seedling planting body The transmission part to the seedling planting body is arranged on one of the left and right sides, and the transmission part to the seedling supply device is arranged on the left and right other side. For this reason, it is difficult to assemble or adjust the seedling planting body.

本発明が解決しようとする課題は、苗植付け体の動軌跡を変化させずに、苗植付株間を変更できて、苗を適正な姿勢で植付けられるよう、苗植付け体の伝動部に間欠駆動機構を設ける一方、苗供給装置は、間欠的に停止することなく連続的に回動して周回駆動して、苗供給装置への苗の補給を容易に行えるようにし、しかも、そのために苗植付け体への伝動部と苗供給装置への伝動部とが二系統に分岐して伝動する構成であっても、苗植付け体の組み付けや調整などがし易いようにすることを課題とする。   The problem to be solved by the present invention is to intermittently drive the transmission part of the seedling planting body so that the seedlings can be planted in an appropriate posture by changing the seedling planting stock without changing the movement trajectory of the seedling planting body. While the mechanism is provided, the seedling supply device is continuously rotated without being intermittently stopped and driven around so that the seedling supply device can be easily replenished with seedlings. It is an object of the present invention to make it easy to assemble and adjust a seedling planting body even when the transmission unit to the body and the transmission unit to the seedling supply device are branched and transmitted in two systems.

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。   In order to solve the above-mentioned problems, the present invention takes the following technical means.

即ち、請求項1記載の発明は、前輪7,7と後輪6,6とを左右両側に設け歩行操縦用の操縦ハンドル2を後部に設けた走行装置1と、昇降機構3により昇降動し開閉機構により開閉動して圃場に苗を植付けるクチバシ状の苗植付け体4と、上下に開口する筒状体43…と該筒状体43…の下側の開口部43a…を開閉する底蓋44…とを有した複数の苗収容体45…を周回動させる構成として該苗収容体45…内に収容させた苗を前記苗植付け体4に上方から落下供給する構成とした苗供給装置42とを備えた歩行型苗移植機において、
エンジン5から前記苗植付け体4への伝動部に、前記苗植付け体4をその昇降軌跡の上位側箇所で一時的に停止させて昇降駆動する間欠駆動機構Kと該間欠駆動機構Kによる停止時間を変更可能とする機構C3とを設け、
前記苗供給装置42を駆動する動力は前記間欠駆動機構Kより伝動上手側の伝動部から取り出して前記苗収容体45…が前記間欠駆動機構Kによって間欠的に停止することなく連続的に回動して周回駆動される構成とし、
前記苗植付け体4が昇降動する前記昇降機構3は、前記エンジン5からの動力を前記苗植付け体4に向けて伝動する伝動機構を内部に装備した伝動ケース部18c,18eから突出させた駆動軸25,27に装着して該駆動軸25,27の駆動回転により前記苗植付け体4とともに前記昇降機構3が昇降動する構成とし、
前記昇降機構3を駆動する前記駆動軸25,27を前記伝動ケース部18c,18eの左右一側方に突出させるとともに前記昇降機構3を前記伝動ケース部18c,18eの左右一側方に配置し、
前記苗供給装置42の前記苗収容体45…を周回動させる回転軸55に対してエンジン5からの動力を伝動して該回転軸55の駆動回転によって前記苗収容体45…が周回動する構成とし、
前記苗収容体45…を周回駆動する前記左右一方側の回転軸55に対して動力を伝達すべく前記苗植付け体4より前側から機体後方に向けてのびるように設けた伝動手段53bを、機体左右方向で前記苗植付け体4に対して前記昇降機構3を装着している前記伝動ケース部18c,18eの配置側に位置させて設けた構成としたことを特徴とする苗移植機としたものである。
That is, the invention according to claim 1 is moved up and down by the traveling mechanism 1 having the front wheels 7, 7 and the rear wheels 6, 6 on the left and right sides and the steering handle 2 for walking operation at the rear, and the lifting mechanism 3. Opening and closing mechanism for opening and closing the beak-like seedling planting body 4 for planting seedlings in the field by the opening and closing mechanism, the cylindrical body 43 opening up and down, and the lower opening 43a of the cylindrical body 43. A seedling supply device configured to drop and supply seedlings housed in the seedling container body 45 to the seedling planting body 4 from above as a structure for rotating a plurality of seedling container bodies 45 having a lid 44. 42, a walking seedling transplanter equipped with
An intermittent drive mechanism K that temporarily stops the seedling planting body 4 at a position on the upper side of its raising / lowering trajectory from the engine 5 to the seedling planting body 4, and a stop time by the intermittent driving mechanism K And a mechanism C3 that can be changed,
The power for driving the seedling supply device 42 is taken out from the transmission portion on the upper transmission side from the intermittent drive mechanism K, and the seedling container 45 is continuously rotated without being intermittently stopped by the intermittent drive mechanism K. And is configured to be driven around,
The raising / lowering mechanism 3 for raising and lowering the seedling planting body 4 is a drive projecting from transmission case portions 18c and 18e equipped therein with a transmission mechanism for transmitting the power from the engine 5 toward the seedling planting body 4. The lifting mechanism 3 is moved up and down together with the seedling planting body 4 by driving rotation of the driving shafts 25 and 27 by mounting on the shafts 25 and 27.
The drive shafts 25 and 27 for driving the elevating mechanism 3 are protruded to the left and right sides of the transmission case portions 18c and 18e, and the elevating mechanism 3 is disposed on the left and right sides of the transmission case portions 18c and 18e. ,
A configuration in which the power from the engine 5 is transmitted to a rotation shaft 55 that rotates the seedling containers 45 of the seedling supply device 42, and the seedling containers 45 rotate around by rotation of the rotation shaft 55. age,
Transmission means 53b provided so as to extend from the front side of the seedling planting body 4 toward the rear side of the machine body so as to transmit power to the rotation shaft 55 on one of the left and right sides for driving the seedling container 45 around the machine body, A seedling transplanting machine characterized in that the seedling transplanting machine is configured to be positioned on the arrangement side of the transmission case portions 18c and 18e in which the lifting mechanism 3 is mounted with respect to the seedling planting body 4 in the left-right direction. It is.

請求項2記載の発明は、前記苗供給装置42は、前記複数の苗収容体45…をループ状に互いに連結して、左右一対の上下方向の回転軸55,57のそれぞれに取付けた左右一対の移動作用体51,51に巻き掛けるとともに、前記左右一対の回転軸55,57の左右一方側の回転軸55に対してエンジン5からの動力を伝動して、該回転軸55の駆動回転によって前記複数の苗収容体45…が機体平面視で左右方向に長い長円状軌跡で周回動させる構成とし、
前記苗収容体45…を周回駆動する前記左右一方側の回転軸55に対して動力を伝達すべく前記苗植付け体4より前側から機体後方に向けてのびるように設けた伝動手段53bを、機体左右方向で前記苗植付け体4に対して前記昇降機構3を装着している前記伝動ケース部18c,18eの配置側に位置させて設け、
該伝動手段53bを介して動力が伝動される回転軸55と対をなすもう一つの回転軸57は、機体左右方向で苗植付け体4を越えて左右方向反対側に位置するように配置したことを特徴とする請求項1記載の苗移植機としたものである。
In the invention according to claim 2, the seedling supply device 42 connects the plurality of seedling containers 45 to each other in a loop and is attached to each of the pair of left and right rotating shafts 55 and 57. The power acting from the engine 5 is transmitted to the left and right rotating shafts 55 of the pair of left and right rotating shafts 55, 57, and the rotational shaft 55 is driven to rotate. The plurality of seedling containers 45 are configured to rotate around an oval locus that is long in the left-right direction in a plan view of the body,
Transmission means 53b provided so as to extend from the front side of the seedling planting body 4 toward the rear side of the machine body so as to transmit power to the rotation shaft 55 on one of the left and right sides for driving the seedling container 45 around the machine body, In the left-right direction, the seedling planting body 4 is provided on the arrangement side of the transmission case portions 18c, 18e that are mounted with the lifting mechanism 3 on the seedling planting body 4,
Another rotating shaft 57 that is paired with the rotating shaft 55 to which power is transmitted via the transmission means 53b is disposed so as to be positioned on the opposite side in the left-right direction beyond the seedling planting body 4 in the left-right direction of the machine body. The seedling transplanter according to claim 1, wherein

請求項3記載の発明は、前記操縦ハンドル2を後部に取り付けて機体前後方向にのびる機体フレーム2bを、機体左右方向で前記苗植付け体4に対して前記昇降機構3を装着している前記伝動ケース部18c,18eの配置側とは反対側に位置させて設けるとともに、機体側面視で前記昇降機構3を装着している前記伝動ケース部18c,18eと前記苗収容体45…の前記回転軸55に伝動すべく前後にのびる前記伝動手段53bとの下方を機体後方にのびて更に前記伝動ケース部18c,18eの後方を後上がりにのびるように設け、その後上がりの後端部に前記操縦ハンドル2を取り付けた構成としたことを特徴とする請求項1或は請求項2記載の苗移植機としたものである。   According to a third aspect of the present invention, the transmission frame 2b is attached to the rear portion of the steering handle 2 and extends in the longitudinal direction of the machine body, and the lifting mechanism 3 is mounted on the seedling planting body 4 in the lateral direction of the machine body. The rotating shafts of the transmission case portions 18c, 18e and the seedling container 45, which are provided on the side opposite to the arrangement side of the case portions 18c, 18e, and are mounted with the lifting mechanism 3 in a side view of the body. 55 is provided so that the lower part of the transmission means 53b extending forward and backward to transmit to 55 is extended to the rear of the fuselage, and the rear of the transmission case portions 18c and 18e extends rearwardly upward. The seedling transplanting machine according to claim 1 or 2, wherein the seedling transplanting machine according to claim 1 or 2 is provided.

請求項1記載の発明は、苗植付け体4を間欠駆動する構成として、苗植付け体4の動軌跡を変化させずに、苗植付株間を変更でき、苗を適正な姿勢で植付けられるようにし、且つ、苗供給装置42は、間欠的に停止することなく連続的に回動して周回駆動する構成とし、作業者が苗供給装置42へ容易に苗を補給することができる。しかも、そのために苗植付け体4への伝動部と苗供給装置42への伝動部とが二系統に分岐して伝動する構成となっていても、苗植付け体4への伝動部(伝動ケース部18c,18e)と苗供給装置42への伝動部(伝動手段53b)とを苗植付け体4に対して左右方向同じ側に配置した構成なので、苗植付け体4の組み付けや調整などをそれらの伝動部を配置していない側から容易に行えて、組付け時やメンテナンス時の作業性が良好なものとなる。   The invention according to claim 1 is configured such that the seedling planting body 4 is intermittently driven, so that the seedling planting body 4 can be changed between plants without changing the movement locus of the seedling planting body 4 so that the seedling can be planted in an appropriate posture. In addition, the seedling supply device 42 is configured to continuously rotate and rotate without stopping intermittently, so that an operator can easily supply the seedling supply device 42 with seedlings. Moreover, even if the transmission part to the seedling planting body 4 and the transmission part to the seedling supply device 42 are branched into two systems for transmission, the transmission part to the seedling planting body 4 (transmission case part) 18c, 18e) and the transmission part (transmission means 53b) to the seedling supply device 42 are arranged on the same side in the left-right direction with respect to the seedling planting body 4, so that the assembly and adjustment of the seedling planting body 4 are transmitted to them. It can be easily performed from the side where the part is not arranged, and the workability during assembly and maintenance is good.

請求項2記載の発明は、苗植付け体4への伝動部(伝動ケース部18c,18e)と苗供給装置42への伝動部(伝動手段53b)とが苗植付け体4に対して左右方向同じ側に配置したことによって、苗供給装置42が苗植付け体4への伝動部の配置側に偏って配置されるものとなって機体の左右重量バランスが偏った構成になりやすいが、伝動手段53bを介して動力が伝動される回転軸55と対をなすもう一つの回転軸57が機体左右方向で苗植付け体4を越えて左右方向反対側に位置するように配置したので、機体の左右重量バランスの偏りが生じ難く、更に、苗収容体45…が左右に長い長円状軌跡で周回動する構成となって、苗供給装置42より後側に立つ作業者が多数の苗収容体45…に容易に苗を補給できて作業能率も向上するものとなる。   In the invention according to claim 2, the transmission part (transmission case parts 18c, 18e) to the seedling planting body 4 and the transmission part (transmission means 53b) to the seedling supply device 42 are the same in the left-right direction with respect to the seedling planting body 4. By arranging on the side, the seedling supply device 42 is biased to be arranged on the side of the transmission part to the seedling planting body 4, and the left and right weight balance of the machine body tends to be biased, but the transmission means 53b The other rotating shaft 57 that is paired with the rotating shaft 55 to which power is transmitted through the vehicle is disposed so as to be positioned on the opposite side in the left-right direction beyond the seedling planting body 4 in the left-right direction of the body. It is difficult for the balance to be biased, and the seedling containers 45 are rotated around a long oval locus on the left and right, so that an operator standing behind the seedling supply device 42 has a large number of seedling containers 45. Can easily replenish seedlings and improve work efficiency The things.

請求項3記載の発明は、更に、操縦ハンドル2を後部に取り付けて機体前後方向にのびる機体フレーム2bを、機体左右方向で苗植付け体4に対して昇降機構3を装着している伝動ケース部18c,18eの配置側とは反対側に位置させて設けることで、機体の左右重量バランスが良好になり、しかも、そのように配置しながらも、機体フレーム2bは、機体側面視で昇降機構3を装着している伝動ケース部18c,18eと苗収容体45…の回転軸55に伝動すべく前後にのびる伝動手段53bとの下方を機体後方にのびて更に前記伝動ケース部18c,18eの後方を後上がりにのびるように設け、その後上がりの後端部に操縦ハンドル2を取り付けた構成としているので、苗植付け体4の組み付けや調整などを苗植付け体4への伝動部(伝動ケース部18c,18e)と苗供給装置42への伝動部(伝動手段53b)を配置していない側から行うときの妨げになりにくく、組付け時やメンテナンス時の作業性も良好なものとなる。   The invention according to claim 3 further includes a transmission case part in which the steering handle 2 is attached to the rear part and the body frame 2b extending in the longitudinal direction of the body is mounted on the seedling planting body 4 in the lateral direction of the body. The left and right weight balance of the airframe is improved by providing it on the side opposite to the arrangement side of 18c and 18e, and the airframe frame 2b can be lifted and lowered by the side view of the airframe while being arranged in this way. The transmission case portions 18c and 18e, and the transmission means 53b extending in the front-rear direction so as to be transmitted to the rotation shaft 55 of the seedling container 45 are extended to the rear of the machine body and further to the rear of the transmission case portions 18c and 18e. Since the steering handle 2 is attached to the rear end of the lift, the assembling and adjustment of the seedling planting body 4 is carried out to the transmission part to the seedling planting body 4. The transmission case portions 18c and 18e) and the transmission portion (transmission means 53b) to the seedling supply device 42 are not obstructed when performed from the side where the transmission portion (transmission means 53b) is not disposed, and the workability during assembly and maintenance is also good. Become.

本発明を実施するための最良の形態を以下の実施例1に説明する。尚、以下にの説明で、図示例を説明する際に、前又は後というときは、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、右又は左というときは、機体後部において機体前部側に向って立つ作業者から見て右手側を右とし、左手側を左とする。また、図中の符号Nは植え付けた苗を示し、Gは植付け圃場面を示す。   The best mode for carrying out the present invention will be described in Example 1 below. In the following description, when describing the illustrated example, when referring to the front or rear, 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. When the term “right” or “left” is used, the right hand side is defined as the right and the left hand side is defined as the left when viewed from the operator standing at the rear of the aircraft toward the front of the aircraft. Moreover, the code | symbol N in a figure shows the planted seedling, G shows a planting field scene.

本発明の実施例である苗移植機は、走行装置1と操縦ハンドル2を備えた機体に、昇降駆動する昇降機構としての昇降リンク機構3により昇降動する開閉可能なクチバシ状の苗植付け体4を備えた構成としている。   A seedling transplanting machine according to an embodiment of the present invention is a beak-like seedling transplanting body 4 that can be opened and closed by a lifting / lowering link mechanism 3 as a lifting / lowering mechanism that moves up and down on a body equipped with a traveling device 1 and a steering handle 2. It is set as the structure provided with.

走行装置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後輪6,6と、該車輪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 device 1 includes an engine 5, a pair of left and right rear wheels 6 and 6 that are driven and rotated by transmission of the power of the engine 5, and left and right wheels that are rotatably supported in front of the wheels 6 and 6. A pair of front wheels 7 and 7 is 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(走行部系変速伝動部C1と作業部系変速伝動部C2)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の左右両側部に伝動ケース9,9を回動自在に取り付け、この伝動ケース9,9の回動中心にミッションケース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C1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、機体後方側に延びてその後端側側方に突出する車軸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。   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 (the traveling part system transmission transmission part C1 and the working part system transmission transmission part C2) in the transmission case 8. The transmission cases 9 and 9 are rotatably attached to the left and right sides of the transmission case 8, and the tip ends of the wheel drive shafts extending from the transmission case 8 to the left and right outer sides at the rotation centers of the transmission cases 9 and 9. The power for traveling that has entered and has passed through the traveling part system transmission transmission C1 in the transmission case 8 is transmitted to the transmission mechanism in the transmission cases 9 and 9. The driving power is transmitted to the axles 10 and 10 which extend to the rear side of the machine body and protrude to the side of the rear end side via the transmission mechanism in the transmission cases 9 and 9, and the rear wheels 6 and 6 are driven to rotate. It is supposed to be.

また、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上下軸心周りに回動自在に取り付けた天秤杆13の左右両側部と連結している。その連結部の右側はロッド14で連結し、左側は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。   Also, upwardly extending arms 11, 11 are integrally attached to the attachment parts of the transmission cases 9, 9 to the transmission case 8, and this is the tip of the piston rod of the lifting hydraulic cylinder 12 fixed to the transmission case 8. Are connected to the left and right sides of a balance rod 13 that is pivotably mounted around a vertical axis. The right side of the connecting portion is connected by a rod 14, and the left side is connected by a left / right horizontal control hydraulic cylinder 15 which can be expanded and contracted.

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、機体に対する畝上面高さを検出するセンサーSの検出結果に基づいて機体を畝上面高さに対して設定高さになるよう作動するよう構成しており、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 contrary, when the piston rod of the elevating hydraulic cylinder 12 is retracted forward, the left and right arms 11 and 11 are rotated forward, and accordingly the transmission cases 9 and 9 are rotated upward so that the aircraft is Descend. The elevating hydraulic cylinder 12 is configured to operate the airframe to be a set height with respect to the height of the heel surface based on the detection result of the sensor S that detects the height of the heel surface with respect to the airframe. It is also configured to operate so as to raise or lower the aircraft by human operation of the operation 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、前記天秤杆13が、その左右中央部の昇降用油圧シリンダ12のピストンロッド先端と連結する上下軸心周りに回動して左右の伝動ケース9,9を互い違いに上下動させ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 expands / contracts, the balance rod 13 rotates around the vertical axis connected to the tip of the piston rod of the lifting hydraulic cylinder 12 at the center of the left / right to transmit left / right transmission. Cases 9 and 9 are moved up and down alternately to incline the aircraft from side to side. 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前輪支持フレーム16の左右両側部の下方に延びるアーム部分の下端部側方に固定した車軸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周りにローリング動自在となっている。   The left and right front wheels 7 and 7 are fixed to the side of the lower end portion of the arm portion extending below the left and right side portions of the front wheel support frame 16 attached to the left and right central positions below the engine 5 so as to be rotatable around the front and rear axis. It is attached to the axles 17 and 17 rotatably. Accordingly, the left and right front wheels 7 and 7 are capable of rolling around the longitudinal center of the left and right center of the aircraft.

前記操縦ハンドル2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 attached to a rear end portion of a body frame 2b having a 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 and 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.

次に、昇降リンク機構3及び苗植付け体4について説明する。   Next, the lifting link mechanism 3 and the seedling planting body 4 will be described.

苗植付け体4は、昇降リンク機構3によって昇降動し、また、苗植付け体の開閉機構によって開閉動するクチバシ状の苗植付け体であり、機体を前進走行させながら苗植付け体4を昇降動させて、苗植付け体4の昇降軌跡上位側で閉じ状態の苗植付け体4の内側に上方から苗を受入れ、苗植付け体4の昇降軌跡下位側で苗植付け体4を下方に開放するように開いて内側に受入れた苗を外側に放出して苗を圃場に植付ける構成としたものである。   The seedling planting body 4 is a beak-like seedling planting body that is moved up and down by the lifting link mechanism 3 and that is opened and closed by an opening and closing mechanism of the seedling planting body. The seedling planting body 4 is moved up and down while the aircraft is moving forward. The seedling planting body 4 is opened on the upper side of the raising / lowering locus of the seedling planting body 4 so as to receive the seedling from the upper side inside the closed seedling planting body 4 and opened on the lower side of the raising / lowering locus of the seedling planting body 4 so as to open the seedling planting body 4 downward. Then, the seedling received inside is discharged to the outside and the seedling is planted in the field.

昇降リンク機構3は、ミッションケース8内の作業部系変速伝動部C2を経た苗移植作業部駆動用の動力を受けて伝動する伝動機構を内装する植付け伝動ケース18に装着している。   The elevating link mechanism 3 is mounted on a planting transmission case 18 that includes a transmission mechanism that receives power for driving the seedling transplanting work section that has passed through the work section transmission transmission section C2 in the mission case 8.

図例のように植付け伝動ケース18は、その前部がミッションケース8の後部に連結しそこから後斜め上方に延びる第一ケース部18aと、この第一ケース部18aの上部左側部に固定されそこから左側方に伸びる第二ケース部18bと、第二ケース部18bの左外端部に固定されてそこから後方に延びる第三ケース部18cと、第三ケース部18cの後部左側部に固定されそこから左側方に伸びる第四ケース部18dと、第四ケース部18dの左外端部に固定されてそこから後方に延びる第五ケース部18eを有するものとしている。これら第一〜第五ケース部18a〜18e内に昇降リンク機構3を昇降駆動するための動力を伝達する伝動機構を内装している。   As shown in the figure, the planting transmission case 18 is fixed to the first case portion 18a whose front portion is connected to the rear portion of the mission case 8 and extends rearward and obliquely upward therefrom, and the upper left portion of the first case portion 18a. A second case portion 18b extending to the left side from there, a third case portion 18c fixed to the left outer end portion of the second case portion 18b and extending rearward therefrom, and a rear left side portion of the third case portion 18c. The fourth case portion 18d extends leftward from the fourth case portion 18d, and the fifth case portion 18e is fixed to the left outer end portion of the fourth case portion 18d and extends rearward therefrom. In these first to fifth case portions 18a to 18e, a transmission mechanism for transmitting power for driving up and down the lifting link mechanism 3 is housed.

また、第一ケース部18a内に内装した伝動機構には、昇降リンク機構3及び苗植付け体4をその昇降動最上位の位置で或はその近傍位置で間欠的に停止させる間欠駆動機構Kと、昇降リンク機構3及び苗植付け体4の昇降動を停止させるクラッチ機構とを備える。間欠駆動機構Kは、苗植付け体4を一サイクル植付け動作させて自動的に設定位置で停止させる一回転停止機構と、この一回転停止機構による苗植付け体4の停止作動を解除して苗植付け体4の昇降動を開始させる一回転開始機構を備えている。間欠駆動機構Kの一回転開始機構が作動すると苗植付け体4が昇降動を開始して、苗植付け体4が昇降動最下位まで下降した後再び上昇して設定された停止位置まで上昇するとの一サイクルの植付け動作を行なう。そして、この一サイクル植付け動作を行った後、再び一回転停止機構によって苗植付け体4が設定された停止位置で停止する。そして、一回転停止機構が作動してから一回転開始機構が作動するまでの時間、即ち、苗植付け体4の停止時間を変更可能とする機構としての株間変更用変速部C3を設けている。具体的には、苗植付け体4を昇降駆動する伝動系から分岐した伝動系を設け、この分岐後の伝動系によって一回転開始機構が回転動作し、一回転開始機構が一回転するごとに一回転停止機構による苗植付け体4の停止作動を解除して苗植付け体4の昇降動を開始させる構成とし、そして、この分岐後の伝動系に前記株間変更用変速部C3を設けて、一回転開始機構の回転比を変更可能としている。したがって、株間変更用変速部C3の変速比を変更することで、一回転開始機構の回転比が変更されて、一回転停止機構が作動してから一回転開始機構が作動するまでの時間、即ち、苗植付け体4の停止時間が変更されることになる。この調節によって苗植付け体4の停止時間が調節されると、苗植付け体4の圃場への植付け間隔、即ち、苗植付株間が変更調節されることになり、しかも、この変更調節がなされても、苗植付け体4の動軌跡(機体の前進とともに苗植付け体4が前方移動しつつ昇降動するときの軌跡)は変化しないので、苗植付株間を変更しても苗を適正な姿勢で植付けられるものとなる。なお、前記クラッチ機構は、間欠駆動機構Kによる苗植付け体4の間欠的な作動を作動不能にして該クラッチ機構の作動中は継続的に苗植付け体4及び昇降リンク機構3の昇降動を停止させるように設けている。   Further, the transmission mechanism incorporated in the first case portion 18a includes an intermittent drive mechanism K for intermittently stopping the lifting link mechanism 3 and the seedling planting body 4 at or near the highest position of the lifting movement. The elevating link mechanism 3 and the clutch mechanism for stopping the elevating movement of the seedling planting body 4 are provided. The intermittent drive mechanism K performs a one-cycle planting operation of the seedling planting body 4 and automatically stops the seedling planting body 4 at a set position, and cancels the stop operation of the seedling planting body 4 by the one-rotation stopping mechanism to plant a seedling. A one-rotation start mechanism for starting up and down the body 4 is provided. When the one-turn start mechanism of the intermittent drive mechanism K is activated, the seedling planting body 4 starts to move up and down, and the seedling planting body 4 rises to the lowest position after being lowered to the lowest level of the raising and lowering movement. One cycle of planting operation. And after performing this one-cycle planting operation | movement, the seedling planting body 4 stops again in the stop position set by the one rotation stop mechanism. Then, an inter-strain change transmission unit C3 is provided as a mechanism that can change the time from when the one-rotation stop mechanism is activated to when the one-rotation start mechanism is activated, that is, the stop time of the seedling planting body 4. Specifically, a transmission system branched from the transmission system that drives the seedling planting body 4 to move up and down is provided, and the one-rotation start mechanism rotates by the transmission system after the branching, and every time the one-rotation start mechanism rotates one time. The stopping operation of the seedling planting body 4 by releasing the rotation stopping mechanism is canceled and the raising and lowering movement of the seedling planting body 4 is started, and the transmission change part C3 between the strains is provided in the transmission system after this branching, The rotation ratio of the starting mechanism can be changed. Therefore, by changing the transmission ratio of the inter-stock change transmission unit C3, the rotation ratio of the one-rotation start mechanism is changed, and the time from when the one-rotation stop mechanism is activated to when the one-rotation start mechanism is activated, that is, The stop time of the seedling planting body 4 is changed. When the stop time of the seedling planting body 4 is adjusted by this adjustment, the planting interval of the seedling planting body 4 to the field, that is, the seedling planting strain is changed and adjusted, and this change adjustment is made. However, since the movement trajectory of the seedling planting body 4 (the trajectory when the seedling planting body 4 moves up and down as the aircraft moves forward) does not change, the seedlings should remain in an appropriate posture even if the planting planting stock is changed. It will be planted. The clutch mechanism disables the intermittent operation of the seedling planting body 4 by the intermittent drive mechanism K, and continuously stops the raising and lowering movement of the seedling planting body 4 and the lifting link mechanism 3 while the clutch mechanism is operating. It is provided to let you.

そして、昇降リンク機構3は、左右の苗植付け体4の前側に設けた左右方向の連結軸19の左右二個所で回動自在に連結する第一昇降アーム20と、苗植付け体4の後側に設けた左右方向の連結軸21の左側部に回動自在に連結する第二昇降アーム22とを備える。そして、第一昇降アーム20の下端部は、第三ケース部18cの下部にから右側に延びる取付軸に揺動自在に取り付けた第一揺動アーム23の先端部と回動自在に連結し、第二昇降アーム22の下端部は、第五ケース部18eの後部側下部にから右側に延びる取付軸に揺動自在に取り付けた第二揺動アーム24の先端部と回動自在に連結する。また、第一昇降アーム20の中間部は、第三ケース部18cの右側部から突出し駆動回転する第一駆動軸25に固定されて駆動回転する第一駆動アーム26の先端部と回動自在に連結し、第二昇降アーム22の中間部は、第五ケース部18eの後部側右側部から突出し駆動回転する第二駆動軸27に固定されて駆動回転する第二駆動アーム28の先端部と回動自在に連結する。従って、第一駆動アーム26と第二駆動アーム28とが植付け伝動ケース18内の伝動機構によって動力が伝達されて駆動回転すると、第一昇降アーム20と第二昇降アーム22が揺動しながら昇降動し、その結果、苗植付け体4の下端部は、図示のような軌跡Tを機体に対して描いて昇降動する。クチバシ状の苗植付け体4は、その昇降軌跡下端まで下降すると開き作動して苗植付け体4内の苗を圃場の土壌に放出する。   And the raising / lowering link mechanism 3 is the 1st raising / lowering arm 20 connected with the right and left two places of the connection shaft 19 of the left-right direction provided in the front side of the right and left seedling planting body 4, and the rear side of the seedling planting body 4 And a second lifting arm 22 rotatably connected to the left side of the connecting shaft 21 in the left-right direction. And the lower end part of the 1st raising / lowering arm 20 is rotatably connected with the front-end | tip part of the 1st rocking | swiveling arm 23 attached to the attachment shaft extended to the right side from the lower part of the 3rd case part 18c, The lower end portion of the second lifting arm 22 is rotatably connected to the tip end portion of the second swing arm 24 that is swingably attached to a mounting shaft that extends to the right side from the lower rear side lower portion of the fifth case portion 18e. Further, an intermediate portion of the first lifting arm 20 protrudes from a right side portion of the third case portion 18c and is fixed to a first drive shaft 25 that is driven and rotated, and is rotatable with a tip portion of the first drive arm 26 that is driven and rotated. The intermediate portion of the second elevating arm 22 is connected to the front end portion of the second drive arm 28 that rotates and is fixed to the second drive shaft 27 that projects from the rear right side of the fifth case portion 18e and rotates. Connect freely. Therefore, when the first drive arm 26 and the second drive arm 28 are driven and rotated by transmission of power by the transmission mechanism in the planting transmission case 18, the first lift arm 20 and the second lift arm 22 are moved up and down while swinging. As a result, the lower end portion of the seedling planting body 4 moves up and down while drawing a trajectory T as shown in the drawing. When the beak-like seedling planting body 4 is lowered to the lower end of its ascending / descending locus, it opens and operates to release the seedlings in the seedling planting body 4 to the soil in the field.

本例の苗移植機の苗植付け体4下端部の機体前進による前方移動を含む作業走行時昇降軌跡MTは、以下のような軌跡となるように、苗植付け体4の機体に対する昇降軌跡STと作業走行時の機体前進速度vを設定している。即ち、図14(a)に示すように、この苗植付け体4の下端部の作業走行時昇降軌跡MTは、その昇降軌跡MT上端となる下降開始点から機体後方側に移動しながら昇降軌跡MT下端となる下降終了点に向かって機体後方側に膨らんだ下降軌跡dを描きながら下降し、昇降軌跡MT下端となる上昇開始点から機体前方側に移動しながら昇降軌跡MT上端となる上昇終了点に向かって機体後方側に膨らんだ上昇軌跡uを描きながら上昇するというような昇降軌跡に設けている。   Ascending / descending trajectory MT during operation including forward movement by forward movement of the seedling planting body 4 of the seedling transplanting machine 4 of this example is as follows: The aircraft forward speed v during work travel is set. That is, as shown in FIG. 14 (a), the lifting trajectory MT at the time of working travel of the lower end portion of the seedling planting body 4 moves from the lowering start point at the upper end of the lifting trajectory MT to the rear side of the aircraft while moving up and down. It descends while drawing a descending trajectory d that swells toward the rear end of the aircraft toward the lowering end point, which is the lower end, and the ascending end point, which is the upper end of the ascending trajectory MT while moving from the ascending start point that is the lower end of the ascent trajectory MT Ascending and descending trajectory that rises while drawing a rising trajectory u that bulges toward the rear of the aircraft.

一方、従来の苗移植機においては、図14(b)に示すように、苗植付け体4’は、苗植付け体4’の機体に対する昇降軌跡ST’を機体側面視で上下に長い楕円状軌跡とし、作業走行時の機体前進速度v’を適宜設定して、苗植付け体4’の下端部の作業走行時昇降軌跡MT’が、その昇降軌跡MT’上端となる下降開始点から機体前方側に移動しながら昇降軌跡MT’下端となる下降終了点に向かって機体前方側に膨らんだ下降軌跡d’を描きながら下降し、昇降軌跡MT’下端となる上昇開始点から機体前方側に移動しながら昇降軌跡MT’上端となる上昇終了点に向かって機体後方側に膨らんだ上昇軌跡u’を描きながら上昇するというような昇降軌跡に設けている。   On the other hand, in the conventional seedling transplanting machine, as shown in FIG. 14 (b), the seedling planting body 4 ′ has an elliptical trajectory that is long in the vertical direction in the side view of the body of the seedling planting body 4 ′. The vehicle forward speed v ′ during work travel is set as appropriate, and the lift trajectory MT ′ during work travel at the lower end of the seedling planting body 4 ′ is the front side of the airframe from the descent start point at which the lift trajectory MT ′ is the upper end. And descending while drawing a descent trajectory d 'swelled toward the front of the aircraft toward the descent end point, which is the lower end of the up / down trajectory MT', and move from the ascending start point, which is the lower end of the up / down trajectory MT ', to the front of the aircraft. However, it is provided on an elevation trajectory that rises while drawing an elevation trajectory u ′ that swells toward the rear end of the aircraft toward the rise end point that is the upper end of the elevation trajectory MT ′.

図14(b)の苗植付け体4’下端部の作業走行時昇降軌跡MT’とした場合には、苗を植付ける昇降動作が一サイクル終了して苗植付け体4’が昇降軌跡MT’の上端部或はその付近に上昇したとき、苗植付け体4’は植付けた苗Nの前方にあるが植付けた苗Nとの前後間隔w’が小さくなるような個所に上昇移動する。このため、ネギの苗などのように上下に長い苗で且つ狭い株間で植付ける苗の場合には、苗植付け体4’が植付けた苗Nの上部側に前後に接近した位置に上昇して次の苗を植付けるための下降動作が始まるようになり、苗植付け体4’が植付けた苗Nの上部側を引っかけて前方に倒したり、苗植付け体4’が次の苗の植付けのために閉じるときに前に植付けた苗Nの上部側を挟んでしまってそのまま下降し苗を倒してしまうことがある。しかも、苗植付け体4’が前後に開閉する構成としていた場合には、前後に開いた苗植付け体4’の後側部分が、植付けた苗Nに一層接近することになり、このような現象は更に生じやすくなる。   In the case of the raising / lowering trajectory MT ′ at the lower end portion of the seedling planting body 4 ′ in FIG. 14B, the raising / lowering operation for planting the seedlings ends one cycle, and the seedling planting body 4 ′ When the seedling planting body 4 ′ rises to the upper end portion or the vicinity thereof, the seedling planting body 4 ′ moves up to a position that is in front of the planted seedling N but has a small front-to-back distance w ′ with the planted seedling N. For this reason, in the case of a seedling that is long and vertically planted, such as a leek seedling, and planted between narrow stocks, the seedling planting body 4 ′ is raised to a position close to the front and back on the upper side of the seedling N planted. The descending action for planting the next seedling starts, and the seedling planting body 4 'hooks the top side of the seedling N planted and falls forward, or the seedling planting body 4' is for planting the next seedling. When it closes, the upper side of the seedling N planted before may be sandwiched and fall down as it is to kill the seedling. In addition, when the seedling planting body 4 ′ is configured to open and close forward and backward, the rear side portion of the seedling planting body 4 ′ opened front and rear is closer to the planted seedling N, and such a phenomenon. Is more likely to occur.

しかし、図14(a)の苗植付け体4下端部の作業走行時昇降軌跡MTとした場合には、苗を植付ける昇降動作が一サイクル終了して苗植付け体4が昇降軌跡MTの上端部或はその付近に上昇したとき、苗植付け体4は植付けた苗Nの前方で植付けた苗Nとの前後間隔wが大きくなるような個所まで上昇移動する。このため、ネギの苗などのように上下に長い苗で且つ狭い株間で植付ける苗の場合でも、苗植付け体4は植付けた苗Nの上部側から前方に大きく離れた位置に上昇して次の苗を植付けるための下降動作が始まるようになり、苗植付け体4が植付けた苗Nの上部側を引っかけて苗を前方に倒してしまうことが生じにくくなり、苗の植付け姿勢が良好になる。   However, in the case of the traveling trajectory MT at the lower end of the seedling planting body 4 in FIG. 14A, the lifting operation for planting the seedling is completed for one cycle, and the seedling planting body 4 is at the upper end of the lifting trajectory MT. Or when it raises to the vicinity, the seedling planting body 4 moves up to a place where the front-to-back distance w with the seedling N planted in front of the planted seedling N becomes large. For this reason, even in the case of a seedling that is long in the vertical direction and planted between narrow strains such as a leek seedling, the seedling planting body 4 rises to a position far away from the upper side of the planted seedling N and moves forward. The descent operation for planting the seedlings of the seedlings begins, the seedling planting body 4 hardly catches the seedlings N planted by the seedling planting body 4, and the planting posture of the seedlings is improved. Become.

そして、図14(a)に示した苗植付け体4が開き状態で上昇した後に閉じる箇所Yは、苗植付け体4の下端部の機体前進による前方移動を含む作業走行時昇降軌跡MTにあって該昇降軌跡下端箇所より機体前方側箇所に設定している。これにより、苗植付け体4が植付けた苗Nの上端部を挟んで下降して苗を前方に倒してしまうことが一層生じにくくなり、苗の植付け姿勢が更に良好になる。   And the location Y which closes after the seedling planting body 4 shown in FIG. 14 (a) rises in the open state and closes is in the lifting trajectory MT during work including forward movement by the forward movement of the lower end portion of the seedling planting body 4. It is set at the front side of the machine body from the lower end of the lifting locus. As a result, it is less likely that the seedling planting body 4 descends across the upper end of the seedling N planted and falls the seedling forward, and the planting posture of the seedling is further improved.

図1〜図13に示す苗植付け体4は、下方に尖ったクチバシ状の先鋭部4Nを一個有する形状のもので、左右方向に開閉動作する左右一対の外側苗植付け体(左外側苗植付け体4a,右外側苗植付け体4c)を備えるとともに、該一対の外側苗植付け体4a,4cの間を左右に仕切る仕切り部材4bとを備え、該仕切り部材4bを平板で構成したものである。よって、この仕切り部材4bは、苗植付け体4内を左右に仕切って苗植付け体4内に左右二つの苗収容部4r,4rを形成する。左外側苗植付け体4aと右外側苗植付け体4cは、仕切り部材4bに接当する位置と左右外方側へ移動した位置とに移動することにより、苗植付け体4内の左右の苗収容部4r,4rとを下方に開閉する。また、前記仕切り部材4bは、前記苗植付け体4が閉じた状態で、前記一対の外側苗植付け体4a,4cとで左右両側から挟まれ、前記仕切り部材4bの下端部が前記外側苗植付け体4a,4cの下端部から下方に突出するように設けたものである。   The seedling planting body 4 shown in FIGS. 1 to 13 has a shape having one sharp beak-like sharpened portion 4N, and a pair of left and right outer seedling planting bodies (left outer seedling planting body) that open and close in the left-right direction. 4a, a right outer seedling planting body 4c), and a partition member 4b that partitions the pair of outer seedling planting bodies 4a, 4c to the left and right, and the partition member 4b is formed of a flat plate. Therefore, this partition member 4b partitions the inside of the seedling planting body 4 into left and right to form two right and left seedling accommodating portions 4r and 4r in the seedling planting body 4. The left outer seedling planting body 4a and the right outer seedling planting body 4c are moved to a position where they come into contact with the partition member 4b and a position moved to the left and right outward sides, so that the right and left seedling accommodating parts in the seedling planting body 4 4r and 4r are opened and closed downward. The partition member 4b is sandwiched between the pair of outer seedling planting bodies 4a and 4c in a state where the seedling planting body 4 is closed, and the lower end portion of the partition member 4b is the outer seedling planting body. 4a and 4c are provided so as to protrude downward from the lower end portions.

苗植付け体4の上部には、内側に形成した上下開放した筒状の苗案内通路35r,35rを有する苗案内体35を設けている。この苗案内体35は、その上方から落下する苗を苗案内通路35r,35rを通過させて下方の苗植付け体4の内側の苗収容部4r,4rに案内する。また、苗植付け体4内側の苗収容部4r,4rの上方に続いて苗案内体35の苗案内通路35r,35rが形成された状態となって、苗植付け体4の内側底部で受け止められた苗が上下に長い苗の場合は、その苗の上部側を苗案内体35が囲う状態となって、苗は、苗植付け体4内側の苗収容部4Lr,4Rrとその上方に続く苗案内体35の苗案内通路35r,35r内とにわたって収容された状態となる。即ち、苗案内体35の苗案内通路35r,35rは苗植付け体4内の苗収容部4r,4rの一部を兼ねているのである。   In the upper part of the seedling planting body 4, a seedling guiding body 35 having cylindrical seedling guiding paths 35r, 35r formed on the inside and opened vertically is provided. The seedling guide body 35 guides seedlings falling from above through the seedling guide passages 35r and 35r to the seedling accommodating portions 4r and 4r inside the seedling planting body 4 below. In addition, the seedling guide passages 35r and 35r of the seedling guide body 35 are formed above the seedling receiving portions 4r and 4r inside the seedling planting body 4 and are received at the inner bottom portion of the seedling planting body 4. In the case where the seedlings are long seedlings, the seedling guide body 35 surrounds the upper side of the seedlings, and the seedlings are seedling receiving portions 4Lr and 4Rr inside the seedling planting body 4 and a seedling guiding body that continues thereabove. The 35 seedling guide passages 35r and 35r are accommodated. That is, the seedling guide passages 35 r and 35 r of the seedling guide body 35 also serve as part of the seedling storage portions 4 r and 4 r in the seedling planting body 4.

本例の苗案内体35は、苗植付け体4を上記のように苗収容部4r,4rを左右に仕切った構成に対応して、苗案内体35の内側に左右に仕切る仕切り部材35bを設けて、左右に苗案内通路35r,35rを形成している。また、苗案内体35の仕切り部材35bと苗植付け体4の前記仕切り部材4bとを連結又は一体形成するなどして一体的に構成している。更に、苗植付け体4内側の左右の苗収容部4r,4rの上方に続いて苗案内体35の左右の苗案内通路35r,35rが形成された状態となっている。また、本例では、苗植付け体4内側の苗収容部4r,4rとその上方に続く苗案内体35の苗案内通路35r,35rとを合わせた上下長を苗植付け体4の昇降軌跡の上下長よりも長く形成している。   The seedling guide body 35 of this example is provided with a partitioning member 35b for partitioning the seedling planting body 4 to the left and right inside the seedling guide body 35, corresponding to the configuration in which the seedling housing parts 4r and 4r are partitioned to the left and right as described above. Thus, seedling guide paths 35r and 35r are formed on the left and right. Further, the partition member 35b of the seedling guide body 35 and the partition member 4b of the seedling planting body 4 are integrally configured by being connected or integrally formed. Furthermore, the right and left seedling guide passages 35r and 35r of the seedling guide body 35 are formed in the seedling planting body 4 and above the left and right seedling accommodating portions 4r and 4r. Further, in this example, the vertical length of the seedling accommodating parts 4r, 4r inside the seedling planting body 4 and the seedling guiding passages 35r, 35r of the seedling guiding body 35 following the upper part thereof is set to be vertically It is longer than the length.

苗植付け体4の左外側苗植付け体4aと右外側苗植付け体4cのそれぞれの開閉回動支点となる前後方向の回動軸4d,4dを苗植付け体4の上部左右両側方に設けるとともに、苗植付け体4を昇降駆動する前後一対の昇降アーム20,22のそれぞれに苗植付け体4を回動自在に連結する左右方向の連結軸19,21を苗植付け体4の上部前後両側方に設けた構成としている。従って、苗植付け体4の前後で前後一対の昇降アーム20,22と連結して苗植付け体4を適正な前後姿勢で昇降でき、しかも、苗植付け体4を左右方向に開閉可能にできて、苗植付け体4の前後姿勢の乱れによる苗の押し倒し等が生じ難くなり、且つ、苗植付け体4の左右方向への開き作動によって苗植付け体4の苗の引っかけも生じ難くなり、苗の植付け姿勢が一層良好になる。   While providing the rotation shafts 4d and 4d in the front-rear direction as the pivots for opening and closing of the left outer seedling planting body 4a and the right outer seedling planting body 4c of the seedling planting body 4 on the upper left and right sides of the seedling planting body 4, Left and right connection shafts 19 and 21 for rotatably connecting the seedling planting body 4 to the pair of front and rear lifting arms 20 and 22 for driving the seedling planting body 4 to move up and down are provided on both the front and rear sides of the upper part of the seedling planting body 4. It has a configuration. Accordingly, the seedling planting body 4 can be moved up and down in an appropriate front-rear posture by connecting with the pair of front and rear lifting arms 20 and 22 before and after the seedling planting body 4, and the seedling planting body 4 can be opened and closed in the left-right direction. The seedling planting body 4 is less likely to be pushed down due to the disorder of the front and back posture of the seedling planting body 4, and the seedling planting body 4 is less likely to catch the seedling by the opening operation in the left-right direction. Becomes even better.

また、苗植付け体4を昇降アーム20,22に連結する左右方向の前記連結軸19,21と左外側苗植付け体4aと右外側苗植付け体4cの前後方向の回動軸4d,4dとを前記苗案内体35に支持させた構成としている。従って、苗案内体35を苗植付け体4の支持部材として兼用できて、苗植付け体4の構成簡易化及び軽量化が図れ、苗植付け体4を一層適確に昇降駆動できて苗の植付け姿勢が一層良好になる。   Further, the connecting shafts 19 and 21 in the left and right direction for connecting the seedling planting body 4 to the lifting arms 20 and 22, and the rotation shafts 4 d and 4 d in the front and rear direction of the left outer seedling planting body 4 a and the right outer seedling planting body 4 c are provided. The seedling guide body 35 is supported. Therefore, the seedling guide body 35 can also be used as a support member for the seedling planting body 4, the configuration of the seedling planting body 4 can be simplified and reduced in weight, and the seedling planting body 4 can be driven up and down more accurately, so that the seedling planting posture can be achieved. Becomes even better.

なお、左外側苗植付け体4aは、その上部前後両側が右方にアーム状にのびてその各先端部が右側の回動軸4dに回動自在に連結し、右外側苗植付け体4cは、その上部前後両側が左方にアーム状にのびてその各先端部が左側の回動軸4dに回動自在に連結する。そして、左外側苗植付け体4aの上部前後両側の右方にのびるアーム状部と右外側苗植付け体4cの上部前後両側の左方にのびるアーム状部とは、それぞれ左右の回動軸4d,4dの左右中央位置に設けた長孔に前後方向の軸部を有するナットを嵌めて連結し、左外側苗植付け体4aと右外側苗植付け体4cとは、一方側が他方側の動作に連動して回動し両者が同時に左右に開閉動作するようになっている。また、左外側苗植付け体4aと右外側苗植付け体4cとはスプリングにて苗植付け体4を閉じる方向に互いに連結している。更に、第二昇降アーム22の基部側部分に、左外側苗植付け体4aと右外側苗植付け体4cを開閉動作させるための開閉アーム31を回動自在に連結し、その開閉アーム31の先端部と左外側苗植付け体4aの上部後側から延びるアーム部とを連結ロッド32で連結している。開閉アーム31の中間部には、苗植付け体4がその昇降軌跡下端まで下降したときに、第二昇降アーム22を回動自在に連結している第二駆動アーム28の先端部に固定の軸に固定したカム34と該カム34に開閉アーム31を圧接させるスプリングの作用によって開閉アーム31が上下に回動し、開閉アーム31が上方に回動すると左外側苗植付け体4aが右側の回動軸4d周りに上方回動し、これに連動して右外側苗植付け体4cが左側の回動軸4d周りに上方回動して、苗植付け体4内側の左右の苗収容部4r,4rが同時に開く。そして、苗植付け体4が昇降軌跡上端に達する直前にカム34による開き作用から開放されて苗植付け体4が閉じる。なお、上記のカム34、開閉アーム31、連結ロッド32等は、苗植付け体4の開閉機構を構成するが、公知の別の開閉機構を採用してもよい。   In addition, the left outer seedling planting body 4a extends in the form of an arm rightward on the upper front and rear sides, and each tip thereof is rotatably connected to the right rotating shaft 4d. The upper and lower sides of the upper part extend in the form of an arm to the left, and the respective front ends thereof are rotatably connected to the left rotation shaft 4d. The left-side seedling planted body 4a has an arm-like portion extending to the right on both the front and rear sides, and a right-side seedling planting body 4c has an arm-like portion extending to the left on both the front and rear sides. A nut having a shaft portion in the front-rear direction is fitted and connected to a long hole provided at the left and right central position of 4d, and one side of the left outer seedling planting body 4a and the right outer seedling planting body 4c is interlocked with the operation of the other side. So that both can be opened and closed simultaneously. Further, the left outer seedling planting body 4a and the right outer seedling planting body 4c are connected to each other in a direction in which the seedling planting body 4 is closed by a spring. Furthermore, an opening / closing arm 31 for opening and closing the left outer seedling planting body 4a and the right outer seedling planting body 4c is rotatably connected to the base side portion of the second lifting arm 22, and the distal end portion of the opening / closing arm 31 is connected. And the arm portion extending from the upper rear side of the left outer seedling planting body 4a are connected by a connecting rod 32. A shaft fixed to the tip of the second drive arm 28 that pivotally connects the second lifting arm 22 when the seedling planting body 4 is lowered to the lower end of its lifting locus at the middle part of the opening / closing arm 31. The open / close arm 31 is rotated up and down by the action of the cam 34 fixed to the cam 34 and the spring for pressing the open / close arm 31 against the cam 34. When the open / close arm 31 is rotated upward, the left outer seedling planting body 4a is rotated to the right. The right outer seedling planting body 4c is rotated upward about the left rotation shaft 4d in conjunction with this, and the right and left seedling accommodating parts 4r, 4r inside the seedling planting body 4 are rotated. Open at the same time. And just before the seedling planting body 4 reaches the upper end of the raising / lowering locus, it is released from the opening action by the cam 34 and the seedling planting body 4 is closed. The cam 34, the opening / closing arm 31, the connecting rod 32 and the like constitute an opening / closing mechanism of the seedling planting body 4, but another known opening / closing mechanism may be employed.

鎮圧体36,36は、苗植付け体4の下降下端個所の左右両外側近傍位置に配置した接地体であり、本例では、接地転動輪で構成している。この鎮圧体36,36は、機体フレーム2bの途中部に前部が左右軸回りに回動自在に取付けた左右の支持フレーム37,37の後部側にそれぞれ横軸回りに回転自在に取付けている。左右の支持フレーム37,37の後部は互いに連結する連結部38を有し、該連結部38と、機体後部側に設けた支持部材39に下降下限位置を設定して上下動自在に取付けた後部支持ロッド40の下端部を横軸回りに取付けている。この後部支持ロッド40には、鎮圧体36,36の鎮圧力を増大させるためのウエイト41を装着している。   The pressure-reducing bodies 36, 36 are grounding bodies arranged in the vicinity of the left and right outer sides of the descending lower end portion of the seedling planting body 4, and in this example, are composed of grounded rolling wheels. The pressure-reducing bodies 36, 36 are attached to the rear side of the left and right support frames 37, 37 whose front part is rotatably attached to the middle part of the body frame 2b so as to be rotatable about the horizontal axis. . The rear portions of the left and right support frames 37, 37 have connecting portions 38 that are connected to each other, and the connecting portion 38 and a rear portion that is attached to a support member 39 provided on the rear side of the machine body so as to be movable up and down by setting a lowering lower limit position. The lower end portion of the support rod 40 is attached around the horizontal axis. The rear support rod 40 is equipped with a weight 41 for increasing the suppression force of the suppression members 36, 36.

本例の苗供給装置42は、苗植付け体4に上方から苗を落下させて供給する構成としたものであり、上下に開口する筒状体43…と該筒状体43…の下側の開口部43a…を開閉する底蓋44…とを有し互いにループ状に連結する複数の苗収容体45…と、該苗収容体45…を前記苗植付け体4の上方を通過する状態で機体平面視非円形のループ状の軌跡で周回動させる苗収容体移動機構46と、前記苗収容体45…の底蓋44…を苗植付け体4の上方位置で開放する底蓋開放機構47を設けた構成としている。よって、この苗移植機は、苗供給作業を余裕をもって行え、作業能率の向上が図れる。   The seedling supply device 42 of this example is configured to drop and supply a seedling to the seedling planting body 4 from above, and the cylindrical body 43... Opened up and down and the lower side of the cylindrical body 43. A plurality of seedling containers 45 that have bottom lids 44 that open and close the openings 43a and that are connected to each other in a loop shape, and the seedling containers 45 that pass through above the seedling planting body 4 A seedling container moving mechanism 46 that rotates around a loop-shaped trajectory that is non-circular in plan view and a bottom lid opening mechanism 47 that opens the bottom cover 44 of the seedling container 45... At a position above the seedling planting body 4 are provided. It has a configuration. Therefore, this seedling transplanting machine can perform the seedling supply work with a margin and can improve the work efficiency.

そして、苗供給装置42は、前記苗収容体45…の外周に円筒外周部43c…を形成し、該円筒外周部43c…に外側から回動自在に係合する係合部48を有して二つの苗収容体45,45を連結する連結体49を複数設け、該連結体49…の前記係合部48…を苗収容体45…の前記円筒外周部43c…に回動自在に係合し該円筒外周部43c…を回動軸として隣の苗収容体45…が回動自在に連結する状態として前記複数の苗収容体45…を互いに連結した構成としている。これにより、この苗移植機は、苗収容体45…は、苗収容体45…の円筒外周部43c…を回動軸として隣の苗収容体45…が回動しながら周回動することになって、苗収容体45…の間隔の変動が生じ難いものとなり、よって、苗植付け体4に対する苗供給が適正に行われて適確な苗の移植ができ、また、苗収容体45…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45…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 42 has cylindrical outer peripheral portions 43c... On the outer periphery of the seedling containers 45, and has an engaging portion 48 that engages with the cylindrical outer peripheral portions 43c. A plurality of connecting bodies 49 for connecting the two seedling containers 45 are provided, and the engaging portions 48 of the connecting bodies 49 are rotatably engaged with the cylindrical outer peripheral portions 43c of the seedling containers 45. The plurality of seedling containers 45 are connected to each other so that the adjacent seedling containers 45 are rotatably connected with the cylindrical outer peripheral portions 43c as rotation axes. Accordingly, in this seedling transplanter, the seedling containers 45 are rotated while the adjacent seedling containers 45 are rotated around the cylindrical outer peripheral portion 43c of the seedling containers 45 as a rotation axis. Therefore, the fluctuation of the interval between the seedling containers 45 is less likely to occur, so that the seedling supply to the seedling planting body 4 is appropriately performed, so that an appropriate seedling can be transplanted, and the number of the seedling containers 45. The upper opening 43b of the seedling container can be formed as wide as possible, and the seedling supply operation to the seedling container 45 can be made as easy as possible while making the body compact. It can be done.

また、苗供給装置42は、前記苗収容体45…の筒状体43…に底蓋44…を開閉回動可能に取付け、該苗収容体45…のそれぞれに前記連結体49…を一つづつ一体的に取付け、該連結体49…の前記係合部48を隣の苗収容体45…の前記円筒外周部43c…に回動自在に係合させて苗収容体45…を互いに連結した構成としている。これにより、この苗移植機は、苗収容体45…は、苗収容体45…の円筒外周部43c…を回動軸として隣の苗収容体45…が回動しながら周回動し、しかも、苗収容体45…が周回動するとき、連結体49…が周回方向に沿う姿勢で移動するとともに、連結体49…を筒状体43…に一体的に取付けた苗収容体45…も、底蓋44…の取付部50…が周回方向に対し設定方向に位置する状態を維持しながら移動することになる。よって、苗収容体45…の底蓋44…は、苗植付け体4の上方位置においていつも同じ方向に開放動作するものとなり、底蓋開放機構47による底蓋44…の開放が適確に作動するようになり、苗植付け体4に対する苗供給が一層適正に行われて適確な苗の移植ができるものとなる。   In addition, the seedling supply device 42 attaches a bottom lid 44 to the cylindrical bodies 43 of the seedling containers 45 so as to be capable of opening and closing, and one of the connecting bodies 49 is attached to each of the seedling containers 45. Each of the joints 49 is attached integrally, and the engaging part 48 of the connecting body 49 is rotatably engaged with the cylindrical outer peripheral part 43c of the adjacent seedling container 45, thereby connecting the seedling containers 45 to each other. It is configured. Thereby, this seedling transplanter rotates the circumference while the adjacent seedling container 45 rotates around the cylindrical outer peripheral portion 43c of the seedling container 45 as a rotation axis, When the seedling containers 45 are rotated, the connecting bodies 49 are moved in a posture along the circumferential direction, and the seedling containers 45 are integrally attached to the cylindrical bodies 43. The mounting portions 50 of the lids 44 are moved while maintaining a state where the mounting portions 50 are positioned in the setting direction with respect to the rotation direction. Therefore, the bottom lids 44 of the seedling containers 45 are always opened in the same direction at the upper position of the seedling planting body 4, and the opening of the bottom lids 44 by the bottom lid opening mechanism 47 operates properly. As a result, the seedling supply to the seedling planting body 4 is more appropriately performed, and the seedling can be transplanted accurately.

そしてまた、この苗移植機の苗供給装置42は、苗収容体45…が機体平面視で左右方向に直線的に移動する区間SSを有する軌跡で周回動する構成とし、且つ、苗収容体45…が左右方向に直線的に移動する区間SSで苗植付け体4の上方を通過するように配置した構成とし、隣り合う二つの苗収容体45,45が苗植付け体4の上方を通過するとき、その二つの苗収容体45,45の底蓋44,44が開いて、苗植付け体4の下方に尖った先鋭部4N一つに対して二つの苗をその先鋭部4N内側に供給する。よって、二つの苗を同時に植付ける苗植付け体4に対して苗を供給する苗供給装置42を簡略に構成でき、また、苗収容体45…に対して苗を供給しやすくするために苗収容体45…が連続的に移動するように苗収容体移動機構46を駆動しても、苗植付け体4の二つの苗収容部4Lr,4Rr内に対しそれぞれ同様な落下軌跡で苗を苗収容体45…から落下供給できて、2つの苗を同時に植付け可能な苗植付け体4に対する苗の供給が適確に行え、適確な苗移植が行える。   In addition, the seedling supply device 42 of the seedling transplanting machine is configured so that the seedling container 45... Is rotated around a trajectory having a section SS in which the seedling container 45... Is configured to pass above the seedling planting body 4 in the section SS that linearly moves in the left-right direction, and when two adjacent seedling containers 45, 45 pass above the seedling planting body 4 The bottom lids 44 and 44 of the two seedling containers 45 and 45 are opened, and two seedlings are supplied to the inside of the sharpened portion 4N with respect to the sharpened portion 4N sharpened below the seedling planting body 4. Therefore, the seedling supply device 42 for supplying seedlings to the seedling planting body 4 for simultaneously planting two seedlings can be configured in a simplified manner, and the seedlings are accommodated so that the seedlings can be easily supplied to the seedling containers 45. Even if the seedling container moving mechanism 46 is driven so that the bodies 45 move continuously, the seedlings are transferred to the two seedling storage parts 4Lr and 4Rr of the seedling planting body 4 with the same fall trajectory. The seedlings can be supplied to the seedling planting body 4 that can be dropped and supplied from 45..., And two seedlings can be planted at the same time.

ところで、本例のように、苗植付け体4に二つの苗を供給する構成とした場合は、苗植付け体4の植付昇降動作が一サイクル動作する間に苗収容体45…が2個分周回移動して、苗植付け体4が昇降軌跡上位側の設定箇所に位置したとき、苗を収容した二つの苗収容体45,45がともに苗案内体35の苗案内通路35r,35rの上部入り口の上方に位置する状態となるように構成する。これにより、苗植付け体4に対して苗供給漏れが生じることなく同時に二つづつ苗を供給でき、且つ、苗植付け体4の上方を通過した後に苗が供給されなかった苗収容体45…が生じないよう余すことなく苗植付け体4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、確実に苗を供給できる。   By the way, when it is set as the structure which supplies two seedlings to the seedling planting body 4 like this example, while the planting raising / lowering operation | movement of the seedling planting body 4 carries out 1 cycle operation | movement, two seedling containers 45 ... When the seedling planting body 4 moves around and is positioned at the set position on the upper side of the raising / lowering locus, the two seedling container bodies 45, 45 each housing the seedling are both upper entrances of the seedling guiding passages 35r, 35r of the seedling guiding body 35 It is comprised so that it may be in the state located above. Thereby, the seedling container 45... Which can supply two seedlings at a time without causing seedling supply leakage to the seedling planting body 4 and has not been fed after passing over the seedling planting body 4. The seedling can be supplied to the seedling planting body 4 without leaving so that it does not occur, so that the seedling supply operation can be performed with sufficient margin and the seedling can be supplied reliably.

以下に、苗供給装置42の苗収容体移動機構46の構成について説明する。即ち、ループ状に連結した苗収容体45…を巻き掛ける移動作用体51,51を機体の左右に設け、該移動作用体51,51を駆動回転する構成として、ループ状に連結した苗収容体45…を機体平面視で左右に長い長円軌跡を描かせて周回移動する構成としている。移動作用体51,51の外周には、その外周に巻き掛けられた苗収容体45…の円筒外周部52…に係合する凹部を苗収容体45…の連結間隔に対応する間隔で複数形成して、苗収容体45…を確実に移動させられるように設けている。移動作用体51,51の駆動構成は、苗植付け体4を間欠駆動する前記間欠駆動機構Kの伝動上手側で前記株間変更用変速部C3の伝動下手側の伝動経路から動力を取出して移動作用体51,51を連続回転駆動し、苗収容体45…を連続的に周回移動させるように構成している。具体的は、植付け伝動ケース18の第一ケース部18aの左側部から連続回転する回転軸53aを突出させ、該回転軸53aに自在継ぎ手を介して伝動軸53bを連結し、該伝動軸53bにて機体左側に設けた伝動ケース54に伝動し、該伝動ケース54から上方に突出させた回転軸55に一体回転するように取付けた左側の移動作用体51を駆動回転する構成としている。また、回転軸55にはスプロケット56も一体回転するように取付け、該スプロケット56と、右側の移動作用体51の回転軸57に一体回転するように取付けたスプロケット58とに伝動チェン59を巻き掛けて、左右の移動作用体51,51の両方を駆動回転する構成としている。ところで、一方側の移動作用体を駆動回転する構成の場合、駆動回転する移動作用体に取り込まれていく側の苗収容体の列は緊張した連結状態となるが、駆動回転する移動作用体から繰出される側の苗収容体の列は弛緩した連結状態となる。このため、駆動回転する移動作用体から苗収容体が繰出される個所で、移動作用体が苗収容体に係合する部位から苗収容体が外れることがあり、また、駆動回転する移動作用体から苗収容体が繰出された後の苗収容体の列が乱れて、苗収容体の列の下側を支持する部材等との摩擦が大きくなって突然引っかかったようになり、苗収容体の移動が円滑に行われなくなることが生じる。しかしながら、上記のように左右の移動作用体51,51の両方を駆動回転する構成としたので、移動作用体51,51から苗収容体45…が外れたり苗収容体45…の列が乱れたりすることが生じにくくなって苗収容体45…が円滑に移動するものとなり、これにより苗植付け体4への苗の供給が良好に行われて苗移植作業を良好に継続できるものとなった。   Below, the structure of the seedling container moving mechanism 46 of the seedling supply apparatus 42 is demonstrated. That is, the moving action bodies 51 and 51 around which the seedling containers 45 connected in a loop shape are wound are provided on the left and right sides of the machine body, and the moving action bodies 51 and 51 are driven and rotated. 45... Is configured to move around by drawing a long oval locus to the left and right in the plane view of the aircraft. A plurality of recesses are formed on the outer periphery of the moving action bodies 51 and 51 at intervals corresponding to the connection intervals of the seedling containers 45... Thus, the seedling containers 45 are provided so as to be reliably moved. The drive structure of the moving action bodies 51 and 51 is such that the power is taken out from the transmission path on the lower transmission side of the inter-change change transmission unit C3 on the upper transmission side of the intermittent drive mechanism K that intermittently drives the seedling planting body 4 to move. The bodies 51 and 51 are continuously driven to rotate, and the seedling containing bodies 45 are continuously moved around. Specifically, a rotating shaft 53a that continuously rotates is projected from the left side of the first case portion 18a of the planting transmission case 18, and the transmission shaft 53b is connected to the rotating shaft 53a via a universal joint, and the transmission shaft 53b is connected to the transmission shaft 53b. Thus, the left moving action body 51 mounted to rotate integrally with a rotation shaft 55 that is transmitted to a transmission case 54 provided on the left side of the machine body and protrudes upward from the transmission case 54 is driven and rotated. Further, a sprocket 56 is attached to the rotary shaft 55 so as to rotate integrally therewith, and a transmission chain 59 is wound around the sprocket 56 and a sprocket 58 attached so as to rotate integrally with the rotary shaft 57 of the right moving action body 51. Thus, both the left and right moving action bodies 51 and 51 are driven and rotated. By the way, in the case of the configuration in which the one side moving action body is driven and rotated, the row of seedling container bodies that are taken into the driving action body that is driven to rotate is in a tensioned connection state, but from the moving action body that is driven to rotate The row | line | column of the seedling container by the side of drawing out will be in the loose connection state. For this reason, the seedling container may be removed from the part where the moving action body engages with the seedling container at the place where the seedling container is drawn out from the driving action body that rotates. The row of seedling containers after the seedling containers have been fed out is disturbed, the friction with the members that support the lower side of the row of seedling containers becomes large and suddenly caught, The movement may not be performed smoothly. However, since both the left and right moving action bodies 51 and 51 are driven and rotated as described above, the seedling container bodies 45 are detached from the moving action bodies 51 and 51 and the rows of the seedling container bodies 45 are disturbed. This makes it difficult for the seedling container 45 to move smoothly, so that the seedling can be supplied to the seedling planting body 4 and the seedling transplanting operation can be continued well.

なお、前記伝動ケース54内の伝動機構は、該伝動ケース54の前側に突出する入力軸60が、その前端部が前記伝動軸53の後端部と自在継ぎ手を介して連結して伝動回転し、伝動ケース54内で、入力軸60の後端部に形成したベベルギヤ61が、前記移動作用体51の回転軸55と一体回転するように取付けたベベルギヤ62と噛み合うように設けている。従って、前記伝動軸53を介して伝動されてきた回転動力は、この伝動ケース54内で上下方向の前記回転軸55回りの回転に変換されて前記移動作用体51を伝動回転する構成としている。本例では、苗供給装置42の後側に移動してきた苗収容体45…が右側に移動する方向となるように苗収容体45…の周回移動方向Dを設定していて、操縦ハンドル2の左側方で苗供給装置42の後側位置に立って苗収容体45…に右手で供給する苗供給作業形態で作業者が苗を供給しやすいようになっている。   Note that the transmission mechanism in the transmission case 54 has an input shaft 60 projecting to the front side of the transmission case 54 and the front end portion thereof is connected to the rear end portion of the transmission shaft 53 via a universal joint for transmission rotation. In the transmission case 54, a bevel gear 61 formed at the rear end portion of the input shaft 60 is provided so as to mesh with a bevel gear 62 attached so as to rotate integrally with the rotating shaft 55 of the moving action body 51. Therefore, the rotational power transmitted through the transmission shaft 53 is converted into rotation around the rotation shaft 55 in the vertical direction in the transmission case 54 to transmit and rotate the moving action body 51. In this example, the rotational movement direction D of the seedling containers 45 is set so that the seedling containers 45 moved to the rear side of the seedling supply device 42 are moved to the right side. An operator can easily supply seedlings in a seedling supply operation mode in which the seedling supply device 42 is standing on the left side at the rear side position and supplied to the seedling containers 45 with the right hand.

苗供給装置42を駆動する動力は、前記のとおり、苗植付け体4を間欠駆動する前記間欠駆動機構Kの伝動上手側で、前記株間変更用変速部C3の伝動下手側の伝動経路から取出している。これにより、苗植付け体4は間欠的に駆動し、苗供給装置42は連続的に駆動する構成とした苗移植機にあって、苗植付け体4が昇降軌跡Tの上位において間欠的に停止する時間を変更して苗植付株間を変更可能とするよう株間変更用変速部C3を間欠駆動機構Kの伝動上手側に設けた構成において、上記のように苗供給装置42を駆動する動力を取出す構成としたので、間欠駆動する苗植付け体4の間欠停止時間を変更して苗植付株間を変更しても、それに対応して、連続的に駆動される苗供給装置42の動作速度も変更されるので、苗供給装置42から苗植付け体4への苗の供給が良好に行われ、作物等の種類に応じて、適宜、苗植付株間を変更調節しても良好に苗移植作業が行えるものとなる。なお、前記苗供給装置42側のクラッチ手段CL1は、伝動負荷が設定値以上になると自動的に動力を切断する機構を備えている。また、苗植付け体4側と苗供給装置42側とに動力が分岐する前の作業部系伝動経路にも、伝動負荷が設定値以上になると自動的に動力を切断する機構を有するクラッチ手段CL3を設けている。   As described above, the power for driving the seedling supply device 42 is taken out from the transmission path on the lower transmission side of the inter-change change transmission unit C3 on the upper transmission side of the intermittent drive mechanism K that intermittently drives the seedling planting body 4. Yes. Thereby, the seedling planting body 4 is intermittently driven, and the seedling feeding device 42 is in the seedling transplanting machine configured to be continuously driven, and the seedling planting body 4 is intermittently stopped at the upper part of the lifting trajectory T. In the configuration in which the inter-change change transmission unit C3 is provided on the transmission upper side of the intermittent drive mechanism K so that the time can be changed to change between the seedling planting stocks, the power for driving the seedling supply device 42 is taken out as described above. Since it is configured, even if the intermittent stop time of the seedling planting body 4 that is intermittently driven is changed to change between seedling planting stocks, the operation speed of the continuously driven seedling supply device 42 is also changed accordingly. Therefore, the seedling supply from the seedling supply device 42 to the seedling planting body 4 is satisfactorily performed, and the seedling transplanting work can be performed well even if the seedling planting stock is appropriately changed according to the type of the crop or the like. It can be done. The clutch means CL1 on the seedling supply device 42 side includes a mechanism that automatically cuts the power when the transmission load exceeds a set value. Further, the clutch means CL3 having a mechanism for automatically cutting the power when the transmission load exceeds a set value also in the working part system transmission path before the power branches to the seedling planting body 4 side and the seedling supply device 42 side. Is provided.

上記苗供給装置42の支持構成は、以下のように構成している。左右の車輪6,6;7,7の間にエンジン5とミッションケース8を配置した機体前部側から、機体下部側を後方に向って延びて後部側を後上がり状態に形成した機体フレーム2bを設けて該機体フレーム2bの後端部に操縦ハンドル2を装着するとともに、前記機体前部側から機体上部側を後方に向って延びる第一支持フレーム63を設けて該第一支持フレーム63の後部側を前記機体フレーム2bと連結し、該支持フレーム63から左右両外側方に延びる第二支持フレーム64を設け、該第二支持フレーム64の左右両側部で、ループ状に連結した苗収容体45…を機体平面視で左右に長い長円軌跡を描かせて周回移動させる左右の移動作用体51,51の回転軸を支持する構成とした。また、第二支持フレーム64を、第一支持フレームと連結する側の基部側フレーム部64aと、移動作用体51,51の回転軸を支持する側の支持部側フレーム部64bとで分割構成し、基部側フレーム部64aに対して支持部側フレーム部64bを左右方向に移動調節可能に設けている。   The support structure of the seedling supply device 42 is configured as follows. An aircraft frame 2b that extends rearward from the front side of the aircraft where the engine 5 and the transmission case 8 are arranged between the left and right wheels 6, 6; The steering handle 2 is attached to the rear end portion of the airframe frame 2b, and a first support frame 63 extending rearward from the airframe front side toward the upper side of the airframe is provided. A seedling container in which a rear side is connected to the body frame 2b, a second support frame 64 extending from the support frame 63 to the left and right outer sides is provided, and a loop shape is connected to both left and right sides of the second support frame 64. 45... Are configured to support the rotating shafts of the left and right moving action bodies 51, 51 that move in a circular manner by drawing a long elliptical locus on the left and right in the plane view of the body. Further, the second support frame 64 is divided into a base frame portion 64a on the side connected to the first support frame and a support portion side frame portion 64b on the side supporting the rotating shafts of the moving working bodies 51 and 51. The support part side frame part 64b is provided so as to be movable and adjustable in the left-right direction with respect to the base part side frame part 64a.

苗供給装置42には、苗収容体45…を、その周回移動軌跡に沿う移動を案内するガイド体65,65,65を苗収容体45…の周回移動軌跡の内側と外側とに設けている。一方、苗収容体45…には、周回移動軌跡の内側と外側に突出する突出部66を形成し、前記ガイド体65,65,65が前記突出部66の上側に位置し且つ苗収容体45…を周回移動軌跡の内外から挟み込むように配置した構成にしている。これにより、苗収容体45…の周回移動が適確且つ円滑に行われ、苗収容体45…が左右方向に直線的に移動する区間SSで苗植付け体4の上方を通過するように配置した構成にあって、周回移動中に苗収容体45…が前後に揺動して、苗植付け体4の上方を通過するときに苗収容体45…が前後にずれて苗植付け体4に対する苗供給が適確に行われなくなるのを防止できる。しかも、苗収容体45…に形成した突出部66の上側に前記ガイド体65,65,65が位置するので、周回移動中に苗収容体45…の浮き上がりも防止されて、苗収容体45…の周回動が適確に行われるようになる。   In the seedling supply device 42, the seedling containers 45 are provided with guide bodies 65, 65, 65 for guiding the movement along the circular movement trajectory inside and outside the circular movement trajectory of the seedling container 45. . On the other hand, the seedling containers 45 are formed with protrusions 66 that protrude inward and outward of the orbital movement trajectory, and the guide bodies 65, 65, 65 are located above the protrusions 66 and the seedling container 45. Are arranged so as to be sandwiched between the inside and outside of the circular movement locus. Thereby, the surrounding movement of the seedling containers 45 is performed accurately and smoothly, and the seedling containers 45 are arranged so as to pass above the seedling planting body 4 in the section SS in which the seedling containers 45 move linearly in the left-right direction. In the configuration, the seedling container 45... Swings back and forth during the circular movement, and the seedling container 45... Shifts back and forth when passing over the seedling planting body 4. Can be prevented from being performed accurately. Moreover, since the guide bodies 65, 65, 65 are located above the protrusions 66 formed in the seedling containers 45, the seedling containers 45 are prevented from being lifted during the circular movement, and the seedling containers 45 ... The circumferential rotation of the lens is accurately performed.

苗収容体45…の周回移動軌跡の下方には、苗収容体45…の周回移動中で且つ苗植付け体4の上方位置以外で、苗収容体45…を、下方回動により開放動作する底蓋44が閉じた状態となるようにして支持する支持体67を周回移動軌跡に沿って設けている。従って、前記ガイド体65,65,65と前記突出部66の上記構成は、苗収容体45…の底部に設けた底蓋44が周回移動中に開いて苗収容体45…内に収容した苗が底蓋44が開いて生じた隙間からはみ出て苗を傷めることも防止するものとなる。また、本例では、苗収容体45…のそれぞれに一体的に設けた連結体39…に上記突出部66を形成したので、構成の簡略化が図れている。なお、前記支持体66と前記ガイド体65,65,65は、第一支持フレーム63に取付けた取付部材68に取付けて支持している。   Below the orbital movement trajectory of the seedling containers 45, there is a bottom in which the seedling containers 45 are opened by a downward rotation while the seedling containers 45 are moving around and other than the position above the seedling planting body 4. A support 67 that supports the lid 44 in a closed state is provided along a circular movement locus. Therefore, the above-described configuration of the guide bodies 65, 65, 65 and the projecting portion 66 is the seedling that the bottom cover 44 provided at the bottom of the seedling container 45 is opened during circular movement and is accommodated in the seedling container 45. However, it is possible to prevent the seedling from being damaged by protruding from the gap generated when the bottom lid 44 is opened. Moreover, in this example, since the said protrusion part 66 was formed in the connection body 39 ... integrally provided in each of the seedling container 45 ..., the structure can be simplified. The support body 66 and the guide bodies 65, 65, 65 are attached to and supported by an attachment member 68 attached to the first support frame 63.

苗供給装置42の苗収容体45…の周回移動軌跡の内側部位には、苗供給装置42に供給する苗を載置して置く苗置部69を設けている。この苗置部69は、苗供給装置42の苗収容体45…の周回移動軌跡の内側を覆うカバーも兼ねている。従って、作業者が苗供給装置42の後側から苗収容体45…に苗を供給するときに、この苗置部69の上に苗を一時的に置け、しかも、この苗置部69上に置いた苗は、苗収容体45…に苗供給する作業者から取出すのも容易であり、従って、苗供給作業が容易に行え、作業能率の向上が図れる。   A seedling placement unit 69 for placing and placing seedlings to be supplied to the seedling supply device 42 is provided in an inner part of the orbital movement trajectory of the seedling container 45... Of the seedling supply device 42. The seedling unit 69 also serves as a cover that covers the inside of the circular movement locus of the seedling container 45 of the seedling supply device 42. Therefore, when the operator supplies seedlings from the rear side of the seedling supply device 42 to the seedling container 45..., The seedlings can be temporarily placed on the seedling placement unit 69. The placed seedlings can be easily taken out from an operator who supplies seedlings to the seedling container 45, so that the seedling supply operation can be easily performed and the work efficiency can be improved.

尚、苗供給装置42に供給する苗を予備的に置いておくための苗台80を機体上部で苗供給装置42の前側位置に取付けている。   A seedling stand 80 for preliminarily placing seedlings to be supplied to the seedling supply device 42 is attached to the front side of the seedling supply device 42 in the upper part of the machine body.

以下に、苗供給装置42の苗収容体45…の底蓋44…を苗植付け体4の上方位置で開放する底蓋開放機構47について説明する。   The bottom lid opening mechanism 47 that opens the bottom lids 44 of the seedling containers 45 of the seedling supply device 42 at an upper position of the seedling planting body 4 will be described below.

まず、前記のとおり、苗収容体45…の周回移動軌跡の下方には、苗収容体45…の周回移動中で且つ苗植付け体4の上方位置以外で、苗収容体45…を、下方回動により開放動作する底蓋44が閉じた状態となるようにして支持する支持体67を周回移動軌跡に沿って設けている。この支持体67は、苗植付け体4の上方位置では、底蓋44が下方回動して開放動作可能となるように底蓋44の下方領域から退避或は排除している。また、底蓋44を下方回動可能に取付けている取付部50を苗収容体45…の周回移動方向Dの上手側になるように構成している。   First, as described above, below the orbital movement trajectory of the seedling containing bodies 45..., The seedling containing bodies 45. A support 67 that supports the bottom cover 44 that is opened by movement so as to be closed is provided along the circular movement locus. The support 67 is retracted or excluded from the lower region of the bottom cover 44 so that the bottom cover 44 can be rotated downward to be opened at the upper position of the seedling planting body 4. Moreover, the attachment part 50 which attaches the bottom cover 44 so that rotation below is possible is comprised so that it may become the upper side of the circumference moving direction D of the seedling container 45 ....

更に、この支持体67は、苗を収容した二つの苗収容体45,45がともに苗案内体35の苗案内通路35r,35rの上部入り口の上方に位置する状態となったときに、二つの苗収容体45,45の底蓋44,44が開放されるように設けている。このため、底蓋44に苗収容体45…の周回移動軌跡に対して外側に突出する突出部44aを設けたものと、内側に突出する突出部44bを有するものを設け、外側突出部44aを設けた底蓋44と内側突出部44bを設けた底蓋44とを互いに連結する苗収容体45…に対して交互に設ける。そして、苗収容体45…の周回移動により先に苗案内体35の上方に移動してくる苗収容体45が苗案内体35の苗案内通路35r,35rの上部入り口の右側の上方を通過するときには、周回内側に偏位した支持体67がその苗収容体45の底蓋44の周回内側に突出する突出部44bの下方に位置して底蓋44が開放されないように支持する。そして、その苗収容体45が苗案内体35の苗案内通路35r,35rの上部入り口の左側の上方をまで移動すると、支持体67がなくなって底蓋44が開放される。一方、苗収容体45…の周回移動により後に苗案内体35の上方に移動してくる苗収容体45が苗案内体35の苗案内通路35r,35rの上部入り口の右側の上方を通過するときには、その苗収容体45の底蓋44の突出部は周回内側に突出していないので、周回内側に偏位した支持体67によって底蓋44が支持されなくなって、その苗収容体45の底蓋44はここで開放する。なお、開放した底蓋44…は、苗植付け体4の上方を通過した後で、再び支持体67が苗収容体45の下方に現れるように設けているので、これにより、閉じられる。よって、苗植付け体4に対して二つの苗を同時に且つ適確に苗を落下供給でき、良好に苗移植作業が行える。なお、底蓋44…には、支持体67による支持状態がなくなると直ちに開放されるように、開放方向に付勢するスプリング等で構成した付勢体を設けている。   Further, when the two seedling container bodies 45 and 45 that store seedlings are positioned above the upper entrances of the seedling guide passages 35r and 35r of the seedling guide body 35, the support 67 has two parts. The bottom covers 44, 44 of the seedling containers 45, 45 are provided so as to be opened. For this reason, the bottom lid 44 is provided with a protrusion 44a that protrudes outward with respect to the orbital movement trajectory of the seedling container 45, and the bottom cover 44 is provided with a protrusion 44b that protrudes inward, and the outer protrusion 44a is provided. The provided bottom lids 44 and the bottom lids 44 provided with the inner protrusions 44b are alternately provided for the seedling containers 45 connected to each other. Then, the seedling container 45 that has been moved above the seedling guiding body 35 by the circular movement of the seedling container 45... Passes above the right side of the upper entrance of the seedling guiding passages 35r, 35r of the seedling guiding body 35. In some cases, the support 67 that is displaced inwardly is positioned below the projecting portion 44b that protrudes inwardly of the bottom cover 44 of the seedling container 45 so that the bottom cover 44 is not opened. Then, when the seedling container 45 moves to the upper left side of the upper entrance of the seedling guide passages 35r and 35r of the seedling guide body 35, the support body 67 disappears and the bottom lid 44 is opened. On the other hand, when the seedling container 45, which is later moved above the seedling guide body 35 due to the circular movement of the seedling container bodies 45, passes over the right side of the upper entrance of the seedling guide passages 35r, 35r of the seedling guide body 35, Since the protruding portion of the bottom cover 44 of the seedling container 45 does not protrude inwardly, the bottom cover 44 is not supported by the support body 67 that is displaced inwardly, and the bottom cover 44 of the seedling container 45 is not supported. Open here. The opened bottom lids 44 are closed so that the support 67 appears again below the seedling container 45 after passing over the seedling planting body 4. Therefore, two seedlings can be dropped and supplied to the seedling planting body 4 simultaneously and accurately, and seedling transplanting work can be performed satisfactorily. The bottom lid 44 is provided with a biasing body constituted by a spring or the like that biases in the opening direction so that the bottom lid 44 is opened as soon as the support state by the support 67 disappears.

また、苗植付け体4に二つの苗を供給する苗供給装置42を、上記のように、苗植付け体4の植付昇降動作が一サイクル動作する間に苗収容体45…が2個分周回移動し、且つ、苗植付け体4が昇降軌跡上位側の設定箇所に位置したとき、苗を収容した二つの苗収容体45,45がともに苗案内体35の苗案内通路35r,35rの上部入り口の上方に位置する状態となるように、苗収容体45…の周回速度と苗植付け体4の昇降動に対する苗収容体45…の位置を設定したことにより、苗植付け体4が昇降軌跡上位側の設定箇所に上昇したときに苗収容体45…の底蓋44…の支持状態を解除して開放させる作動機構を別途設けることなく、適確なタイミングで苗を供給でき、品質維持を図りながらコストダウンを図ることができた。また、上記のように、底蓋44…に、支持体67による支持状態がなくなると直ちに開放されるように、開放方向に付勢するスプリング等で構成した付勢体を設けたことにより、一層、上記のような苗収容体45…の周回速度と苗植付け体4の昇降動に対する苗収容体45…の位置との設定範囲が広くなり、適確なタイミングで苗を供給するようにする上記の設定作業が適確且つ容易に行える。   Further, as described above, the seedling supply device 42 that supplies two seedlings to the seedling planting body 4 is configured to circulate two seedling containers 45... While the planting raising and lowering operation of the seedling planting body 4 is performed in one cycle. When the seedling planting body 4 moves and the seedling planting body 4 is positioned at a set position on the upper side of the raising / lowering locus, the two seedling container bodies 45, 45 each housing the seedling are both upper entrances of the seedling guiding passages 35r, 35r of the seedling guiding body 35 By setting the rotation speed of the seedling container 45 and the position of the seedling container 45 with respect to the raising and lowering movement of the seedling planting body 4, the seedling planting body 4 is positioned on the upper side of the lifting trajectory. Without providing a separate operating mechanism for releasing and releasing the support state of the bottom cover 44 of the seedling container 45 when it is raised to the set point, seedlings can be supplied at an appropriate timing, while maintaining quality. The cost could be reduced. Further, as described above, the bottom lid 44 is provided with the urging body composed of a spring or the like that urges in the opening direction so that the bottom lid 44 is released as soon as the support state by the support body 67 disappears. The setting range of the rotation speed of the seedling containers 45 as described above and the position of the seedling containers 45 with respect to the raising and lowering of the seedling planting body 4 is widened, and the seedlings are supplied at an appropriate timing. The setting work can be performed accurately and easily.

上記に説明した苗移植機は、昇降動及び開閉動するクチバシ状の苗植付け体4を自走可能な機体に設け、機体を前進走行させながら苗植付け体4を昇降動させて、苗植付け体4の昇降軌跡上位側で閉じ状態の苗植付け体4の内側に上方から苗を受入れ、苗植付け体4の昇降軌跡下位側で苗植付け体4を下方に開放するように開いて内側に受入れた苗を外側に放出して苗を圃場に植付ける構成とした苗移植機において、前記苗植付け体4の下方に尖った先鋭部一つに対して二つの苗をその先鋭部内側に供給する苗供給装置42を備えた構成としたもので、このように構成した苗移植機を用いると、ねぎの苗を一箇所に二つづつ植付ける場合に、左右に接近した状態で且つ同じ深さで適確に植付けることができる。   In the seedling transplanting machine described above, a beak-like seedling planting body 4 that moves up and down and opens and closes is provided in a self-propelled body, and the seedling planting body 4 is moved up and down while the body is traveling forward, so that the seedling planting body The seedling planting body 4 is received from the upper side inside the seedling planting body 4 closed on the upper side of the lifting locus 4, and the seedling planting body 4 is opened so as to open downward on the lower side of the raising and lowering locus of the seedling planting body 4 and received inside. In a seedling transplanting machine configured to release seedlings to the outside and plant seedlings in a field, seedlings that supply two seedlings to the inside of the sharpened portion for one sharpened pointed portion below the seedling planting body 4 When the seedling transplanting machine configured as described above is used, when the seedling transplanting machine configured as described above is used, when two seedlings of green onions are planted in one place, they are close to the left and right and at the same depth. Can be planted properly.

なお、上記のような苗植付け体4にあって、仕切り部材4b,35bを取り除いた構成とし、そのようにした苗植付け体4の下方に尖った先鋭部一つに対して一つの苗をその先鋭部内側に供給する苗供給装置42を備えた構成とすれば、苗植付け体4一つで苗を一つづつ圃場に植付ける構成に代わる。この場合、苗供給装置42の苗収容体45…の周回速度は、苗を二つづつ供給する場合と比べて半分の速度で駆動する必要がある。そのため、苗収容体45…への伝動経路に減速機構又は変速機構を装備する必要がある。   In the seedling planting body 4 as described above, the partition members 4b and 35b are removed, and one seedling is attached to one sharp pointed portion below the seedling planting body 4 thus formed. If it is set as the structure provided with the seedling supply apparatus 42 supplied inside a sharp-pointed part, it replaces with the structure which plants a seedling one by one with the seedling planting body 4 one by one. In this case, the rotational speed of the seedling containers 45 of the seedling supply device 42 needs to be driven at half the speed compared to the case where two seedlings are supplied. Therefore, it is necessary to equip a transmission path to the seedling container 45 with a speed reduction mechanism or a speed change mechanism.

苗供給装置42の苗収容体45…の周回速度を変更する減速機構を、上例の苗移植機に付加する場合、図15に示すように設けた減速歯車群G1〜G4から構成した減速機構VDを設け、これを植付け伝動ケース18から取出した連続回転する回転軸53aから、伝動軸53bを経て、苗供給装置42の苗収容体45…を回転駆動する回転軸55を上方に突出させた伝動ケース54の入力軸まで動力を伝動する区間に介装することで容易に実現できる。   When a reduction mechanism for changing the rotation speed of the seedling container 45 of the seedling supply device 42 is added to the seedling transplanter of the above example, a reduction mechanism configured from reduction gear groups G1 to G4 provided as shown in FIG. A VD is provided, and a rotating shaft 55 for rotating the seedling container 45 of the seedling supply device 42 is protruded upward from a continuously rotating rotating shaft 53a taken out from the planting transmission case 18 through the transmission shaft 53b. This can be easily realized by interposing in the section where power is transmitted to the input shaft of the transmission case 54.

なお、一つの苗植付け体に、或は、二つの苗植付け体に、苗を二つづつ供給する場合と、一つの苗植付け体に苗を一つづつ供給する場合とに容易に切替可能にするため、苗収容体45…への伝動経路に、苗を二つづつ供給するときの苗収容体45…の周回速度で伝動する状態と、その伝動状態より半分の速度に変速して一つの苗植付け体に苗を一つづつ供給するときの苗収容体45…の周回速度で伝動する状態とに切替可能な変速機構を予め装備すれば、2条植えと1条植えの切替えが一層容易に行えるものとなる。   It is possible to easily switch between supplying two seedlings to one seedling planting body or two seedling planting bodies, and supplying one seedling to one seedling planting body one by one. In order to do so, the transmission path to the seedling container 45... Is transmitted at a rotational speed of the seedling container 45. It is easier to switch between two-row planting and single-row planting if equipped with a speed change mechanism that can be switched to a state where the seedling container 45 is transmitted at the revolving speed when feeding seedlings one by one to the seedling planting body. It will be something that can be done.

なお、苗収容体45…の底蓋44を閉じ状態で支持する支持体67に、苗を二つづつ供給するときの苗収容体45…の底蓋44の開放個所と、苗を一つづつ供給するときの苗収容体45…の底蓋44の開放個所とに、底蓋44を開放可能とする位置と開放不能とする位置とに移動可能とした可動支持体を設け、前記変速機構の切替に連動して可動支持体を動作して、苗を二つづつ供給するときにそれに対応した苗収容体45…の周回速度に変速するとともに設定した二つの個所で底蓋44を開放する状態に切替え、苗を一つづつ供給するときにそれに対応した苗収容体45…の周回速度に変速するとともに設定した一つの個所で底蓋44を開放する状態に切替えるように構成することもでき、このようにすれば、2条植えと1条植えの切替えが更に一層容易に行えるものとなる。   It should be noted that when two seedlings are supplied to the support body 67 that supports the bottom lid 44 of the seedling container 45 in a closed state, the open portion of the bottom lid 44 of the seedling container 45. A movable support body that is movable between a position where the bottom lid 44 can be opened and a position where the bottom lid 44 cannot be opened is provided at an opening of the bottom lid 44 of the seedling container 45 when being supplied. The movable support is operated in conjunction with the switching so that when the seedlings are supplied two by two, the speed is changed to the rotation speed of the seedling container 45 corresponding to the seedling and the bottom lid 44 is opened at the two set points. When the seedlings are supplied one by one, it is possible to change to the rotation speed of the corresponding seedling container 45... And to switch to the state where the bottom lid 44 is opened at one set point. In this way, switching between two-row planting and single-row planting Further it becomes capable of performing more easily.

ところで、クチバシ型の苗植付け体4を、下方に細長く形成し、開閉回動するときの軸19,21から下端部までの長さを350mm〜450mmとし、下部が左右幅及び前後幅が5〜20mmに設定して下方ほど幅狭く形成し、左右横方向に開閉する構成とすることで、植付ける圃場に5〜20mmの大きさの粒の土が多く存在する状態であっても、土中に下部が突入して開いたときに土を大きく左右に吐き出すことがなく、ねぎ等の細い苗でも大きく倒れることなく植付けることができる。   By the way, the beak-type seedling planting body 4 is formed to be elongated downward, the length from the shafts 19 and 21 to the lower end when rotating is opened and closed is 350 mm to 450 mm, the lower part has a lateral width and a longitudinal width of 5 to 5 mm. Even if it is in a state where a large amount of grain with a size of 5 to 20 mm exists in the field to be planted by setting it to 20 mm and forming a narrower width toward the lower side and opening and closing in the horizontal direction, When the lower part enters and opens, the soil does not spout out to the left or right, and even thin seedlings such as green onions can be planted without falling down.

上記歩行型苗移植機は、前輪7,7と後輪6,6とを左右両側に設け歩行操縦用の操縦ハンドル2を後部に設けた走行装置1と、昇降機構3により昇降動し開閉機構により開閉動して圃場に苗を植付けるクチバシ状の苗植付け体4と、上下に開口する筒状体43…と該筒状体43…の下側の開口部43a…を開閉する底蓋44…とを有した複数の苗収容体45…を周回動させる構成として該苗収容体45…内に収容させた苗を前記苗植付け体4に上方から落下供給する構成とした苗供給装置42とを備えた歩行型苗移植機において、エンジン5から前記苗植付け体4への伝動部に、前記苗植付け体4をその昇降軌跡の上位側箇所で一時的に停止させて昇降駆動する間欠駆動機構Kと該間欠駆動機構Kによる停止時間を変更可能とする機構C3とを設け、前記苗供給装置42を駆動する動力は前記間欠駆動機構Kより伝動上手側の伝動部から取り出して前記苗収容体45…が前記間欠駆動機構Kによって間欠的に停止することなく連続的に回動して周回駆動される構成とし、前記苗植付け体4が昇降動する前記昇降機構3は、前記エンジン5からの動力を前記苗植付け体4に向けて伝動する伝動機構を内部に装備した伝動ケース部18c,18eから突出させた駆動軸25,27に装着して該駆動軸25,27の駆動回転により前記苗植付け体4とともに前記昇降機構3が昇降動する構成とし、前記昇降機構3を駆動する前記駆動軸25,27を前記伝動ケース部18c,18eの左右一側方に突出させるとともに前記昇降機構3を前記伝動ケース部18c,18eの左右一側方に配置し、前記苗供給装置42の前記苗収容体45…を周回動させる回転軸55に対してエンジン5からの動力を伝動して該回転軸55の駆動回転によって前記苗収容体45…が周回動する構成とし、前記苗収容体45…を周回駆動する前記左右一方側の回転軸55に対して動力を伝達すべく前記苗植付け体4より前側から機体後方に向けてのびるように設けた伝動手段53bを、機体左右方向で前記苗植付け体4に対して前記昇降機構3を装着している前記伝動ケース部18c,18eの配置側に位置させて設けた構成としたものである。   The walking-type seedling transplanting machine moves up and down by a traveling device 1 having front wheels 7 and 7 and rear wheels 6 and 6 on both right and left sides and a steering handle 2 for walking operation at the rear, and an elevating mechanism 3. The beak-like seedling planting body 4 that opens and closes by the swaying and planting seedlings in the field, the bottom body 44 that opens and closes the cylindrical body 43 that opens up and down, and the lower opening 43a of the cylindrical body 43. A seedling supply device 42 configured to drop and supply seedlings contained in the seedling container 45 from above to the seedling planting body 4 as a structure for rotating a plurality of seedling containers 45 having In the walking type seedling transplanting machine provided with the above, an intermittent drive mechanism that causes the transmission part from the engine 5 to the seedling planting body 4 to temporarily move the seedling planting body 4 at the upper position of the lifting locus and drive it up and down K and a mechanism C3 that can change the stop time by the intermittent drive mechanism K And the power for driving the seedling supply device 42 is taken out from the transmission portion on the upper side of transmission from the intermittent drive mechanism K, and the seedling container 45 is continuously stopped without being intermittently stopped by the intermittent drive mechanism K. The raising / lowering mechanism 3 in which the seedling planting body 4 moves up and down is equipped with a transmission mechanism that transmits the power from the engine 5 toward the seedling planting body 4. The lift mechanism 3 is mounted on the drive shafts 25 and 27 protruding from the transmission case portions 18c and 18e, and the lift mechanism 3 is moved up and down together with the seedling planting body 4 by the drive rotation of the drive shafts 25 and 27. The drive shafts 25 and 27 for driving the motor 3 are projected to the left and right sides of the transmission case portions 18c and 18e, and the elevating mechanism 3 is disposed to the left and right sides of the transmission case portions 18c and 18e. Then, the power from the engine 5 is transmitted to the rotating shaft 55 that rotates the seedling containers 45 of the seedling supply device 42, and the seedling containers 45 are rotated by driving rotation of the rotating shaft 55. Transmission means provided to extend from the front side of the seedling planting body 4 toward the rear of the machine body so as to transmit power to the rotary shaft 55 on one of the left and right sides that drives the seedling container 45. 53b is configured to be positioned on the arrangement side of the transmission case portions 18c and 18e on which the lifting mechanism 3 is mounted with respect to the seedling planting body 4 in the horizontal direction of the machine body.

よって、苗植付け体4を間欠駆動する構成として、苗植付け体4の動軌跡を変化させずに、苗植付株間を変更でき、苗を適正な姿勢で植付けられるようにし、且つ、苗供給装置42は、間欠的に停止することなく連続的に回動して周回駆動する構成とし、作業者が苗供給装置42へ容易に苗を補給することができる。しかも、そのために苗植付け体4への伝動部と苗供給装置42への伝動部とが二系統に分岐して伝動する構成となっていても、苗植付け体4への伝動部(伝動ケース部18c,18e)と苗供給装置42への伝動部(伝動手段53b)とを苗植付け体4に対して左右方向同じ側に配置した構成なので、苗植付け体4の組み付けや調整などをそれらの伝動部を配置していない側から容易に行えて、組付け時やメンテナンス時の作業性が良好なものとなる。   Therefore, as a configuration in which the seedling planting body 4 is intermittently driven, it is possible to change between seedling planting stocks without changing the movement trajectory of the seedling planting body 4, so that the seedling can be planted in an appropriate posture, and a seedling supply device 42 is configured to continuously rotate and rotate without stopping intermittently, so that an operator can easily replenish the seedling supply device 42 with seedlings. Moreover, even if the transmission part to the seedling planting body 4 and the transmission part to the seedling supply device 42 are branched into two systems for transmission, the transmission part to the seedling planting body 4 (transmission case part) 18c, 18e) and the transmission part (transmission means 53b) to the seedling supply device 42 are arranged on the same side in the left-right direction with respect to the seedling planting body 4, so that the assembly and adjustment of the seedling planting body 4 are transmitted to them. It can be easily performed from the side where the part is not arranged, and the workability during assembly and maintenance is good.

また、上記歩行型苗移植機は、前記苗供給装置42は、前記複数の苗収容体45…をループ状に互いに連結して、左右一対の上下方向の回転軸55,57のそれぞれに取付けた左右一対の移動作用体51,51に巻き掛けるとともに、前記左右一対の回転軸55,57の左右一方側の回転軸55に対してエンジン5からの動力を伝動して、該回転軸55の駆動回転によって前記複数の苗収容体45…が機体平面視で左右方向に長い長円状軌跡で周回動させる構成とし、前記苗収容体45…を周回駆動する前記左右一方側の回転軸55に対して動力を伝達すべく前記苗植付け体4より前側から機体後方に向けてのびるように設けた伝動手段53bを、機体左右方向で前記苗植付け体4に対して前記昇降機構3を装着している前記伝動ケース部18c,18eの配置側に位置させて設け、該伝動手段53bを介して動力が伝動される回転軸55と対をなすもう一つの回転軸57は、機体左右方向で苗植付け体4を越えて左右方向反対側に位置するように配置したものである。   In the walking type seedling transplanting machine, the seedling supply device 42 connects the plurality of seedling containers 45 to each other in a loop shape, and is attached to each of a pair of left and right rotating shafts 55 and 57 in the vertical direction. While being wound around the pair of left and right moving action bodies 51, 51, the power from the engine 5 is transmitted to the rotation shaft 55 on one of the left and right sides of the pair of left and right rotation shafts 55, 57 to drive the rotation shaft 55. The plurality of seedling containers 45 are rotated around a long oval locus that is long in the left-right direction in a plan view of the machine body by rotation, with respect to the left and right rotation shafts 55 that drive the seedling containers 45. The lifting mechanism 3 is mounted on the seedling planting body 4 in the left-right direction of the body, with transmission means 53b provided so as to extend from the front side to the rear side of the body to transmit power. The transmission case 1 c, 18e is disposed on the arrangement side, and another rotating shaft 57 that is paired with the rotating shaft 55 through which the power is transmitted via the transmission means 53b extends beyond the seedling planting body 4 in the left-right direction of the body. It is arranged so as to be located on the opposite side in the left-right direction.

よって、苗植付け体4への伝動部(伝動ケース部18c,18e)と苗供給装置42への伝動部(伝動手段53b)とが苗植付け体4に対して左右方向同じ側に配置したことによって、苗供給装置42が苗植付け体4への伝動部の配置側に偏って配置されるものとなって機体の左右重量バランスが偏った構成になりやすいが、伝動手段53bを介して動力が伝動される回転軸55と対をなすもう一つの回転軸57が機体左右方向で苗植付け体4を越えて左右方向反対側に位置するように配置したので、機体の左右重量バランスの偏りが生じ難く、更に、苗収容体45…が左右に長い長円状軌跡で周回動する構成となって、苗供給装置42より後側に立つ作業者が多数の苗収容体45…に容易に苗を補給できて作業能率も向上するものとなる。   Therefore, the transmission part (transmission case part 18c, 18e) to the seedling planting body 4 and the transmission part (transmission means 53b) to the seedling feeding device 42 are arranged on the same side in the left-right direction with respect to the seedling planting body 4. The seedling supply device 42 is biased to be arranged on the side of the transmission part to the seedling planting body 4 and the left and right weight balance of the machine body tends to be biased, but the power is transmitted via the transmission means 53b. Since the other rotation shaft 57 that is paired with the rotation shaft 55 is positioned so as to be located on the opposite side in the left-right direction beyond the seedling planting body 4 in the left-right direction of the machine body, the left-right weight balance of the machine body is unlikely to occur. In addition, the seedling containers 45 are rotated around a long oval locus on the left and right, so that an operator standing behind the seedling supply device 42 can easily replenish seedlings 45 to the seedling containers 45. This will improve work efficiency.

更に、上記歩行型苗移植機は、前記操縦ハンドル2を後部に取り付けて機体前後方向にのびる機体フレーム2bを、機体左右方向で前記苗植付け体4に対して前記昇降機構3を装着している前記伝動ケース部18c,18eの配置側とは反対側に位置させて設けるとともに、機体側面視で前記昇降機構3を装着している前記伝動ケース部18c,18eと前記苗収容体45…の前記回転軸55に伝動すべく前後にのびる前記伝動手段53bとの下方を機体後方にのびて更に前記伝動ケース部18c,18eの後方を後上がりにのびるように設け、その後上がりの後端部に前記操縦ハンドル2を取り付けた構成としたものである。   Further, in the walking type seedling transplanting machine, the steering handle 2 is attached to the rear part and the body frame 2b extending in the longitudinal direction of the body is mounted on the lifting mechanism 3 with respect to the seedling planting body 4 in the lateral direction of the body. The transmission case portions 18c and 18e are provided on the opposite side of the arrangement side of the transmission case portions 18c and 18e, and the transmission case portions 18c and 18e and the seedling container 45 are mounted with the lifting mechanism 3 in a side view of the body. In order to transmit to the rotary shaft 55, the lower part of the transmission means 53b extending forward and backward extends to the rear of the fuselage, and further the rear of the transmission case portions 18c and 18e extends rearward, and the rear end portion of the rearward rising portion The steering handle 2 is attached.

よって、操縦ハンドル2を後部に取り付けて機体前後方向にのびる機体フレーム2bを、機体左右方向で苗植付け体4に対して昇降機構3を装着している伝動ケース部18c,18eの配置側とは反対側に位置させて設けることで、機体の左右重量バランスが良好になり、しかも、そのように配置しながらも、機体フレーム2bは、機体側面視で昇降機構3を装着している伝動ケース部18c,18eと苗収容体45…の回転軸55に伝動すべく前後にのびる伝動手段53bとの下方を機体後方にのびて更に前記伝動ケース部18c,18eの後方を後上がりにのびるように設け、その後上がりの後端部に操縦ハンドル2を取り付けた構成としているので、苗植付け体4の組み付けや調整などを苗植付け体4への伝動部(伝動ケース部18c,18e)と苗供給装置42への伝動部(伝動手段53b)を配置していない側から行うときの妨げになりにくく、組付け時やメンテナンス時の作業性も良好なものとなる。   Therefore, the arrangement side of the transmission case portions 18c and 18e, in which the body frame 2b attached to the rear portion with the steering handle 2 extending in the longitudinal direction of the body and the lifting mechanism 3 mounted on the seedling planting body 4 in the lateral direction of the body is defined. By providing it on the opposite side, the right and left weight balance of the airframe is improved, and the airframe frame 2b is mounted in such a manner, but the power transmission frame portion 2b is mounted with the lifting mechanism 3 in a side view of the airframe. 18c and 18e and a transmission means 53b extending in the front-rear direction so as to be transmitted to the rotation shaft 55 of the seedling container 45 ... are provided so that the transmission case portions 18c and 18e extend rearward and the rear of the transmission case portions 18c and 18e. Then, since the steering handle 2 is attached to the rear end portion that rises thereafter, the assembly or adjustment of the seedling planting body 4 is performed to the transmission portion (transmission case section 18c) to the seedling planting body 4. 18e) and the transmission portion of the seedling supply device 42 (less likely to be disturbed at the time of performing the side not arranged transmission means 53b), workability at the time of or during maintenance assembly becomes good.

苗移植機の側面図。The side view of a seedling transplanter. 苗移植機の平面図。The top view of a seedling transplanter. 苗移植機の伝動構成を示す説明図。Explanatory drawing which shows the transmission structure of a seedling transplanter. 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. 苗供給装置の一部を示す平面図。The top view which shows a part of seedling supply apparatus. 苗供給装置の一部を示す断面側面図。The cross-sectional side view which shows a part of seedling supply apparatus. 苗供給装置から苗植付け体への苗供給部を示す正面図。The front view which shows the seedling supply part from a seedling supply apparatus to a seedling planting body. 苗供給装置から苗植付け体への苗供給部を示す平面図。The top view which shows the seedling supply part from a seedling supply apparatus to a seedling planting body. 苗植付け体の動作機構と昇降軌跡を示す側面図。The side view which shows the operation mechanism and raising / lowering locus | trajectory of a seedling planting body. 苗植付け体の側面図。The side view of a seedling planting body. 苗植付け体の背面図。The rear view of a seedling planting body. 苗植付け体の一部構成を示す断面背面図。The cross-sectional back view which shows a partial structure of a seedling planting body. 苗植付け体の植付け状態を示す背面図。The rear view which shows the planting state of a seedling planting body. 苗植付け体の昇降軌跡を示す側面図。The side view which shows the raising / lowering locus | trajectory of a seedling planting body. 苗供給装置の減速機構を示す平面視断面図。The top view sectional drawing which shows the deceleration mechanism of a seedling supply apparatus.

符号の説明Explanation of symbols

1:走行装置
2:操縦ハンドル
3:昇降機構
4:苗植付け体
5:エンジン
6,6:後輪
7,7:前輪
18c:伝動ケース部(第三ケース部)
18e:伝動ケース部(第五ケース部)
25:駆動軸
27:駆動軸
42:苗供給装置
43:筒状体
43a:開口部
44:底蓋
45:苗収容体
53b:伝動手段(伝動軸)
55:回転軸
K:間欠駆動機構
C3:変速機構
1: Traveling device 2: Steering handle 3: Lifting mechanism 4: Seedling planting body 5: Engine 6, 6: Rear wheel 7, 7: Front wheel 18c: Transmission case part (third case part)
18e: Transmission case part (fifth case part)
25: drive shaft 27: drive shaft 42: seedling supply device 43: cylindrical body 43a: opening 44: bottom lid 45: seedling container 53b: transmission means (transmission shaft)
55: Rotating shaft K: Intermittent drive mechanism C3: Transmission mechanism

Claims (3)

前輪7,7と後輪6,6とを左右両側に設け歩行操縦用の操縦ハンドル2を後部に設けた走行装置1と、昇降機構3により昇降動し開閉機構により開閉動して圃場に苗を植付けるクチバシ状の苗植付け体4と、上下に開口する筒状体43…と該筒状体43…の下側の開口部43a…を開閉する底蓋44…とを有した複数の苗収容体45…を周回動させる構成として該苗収容体45…内に収容させた苗を前記苗植付け体4に上方から落下供給する構成とした苗供給装置42とを備えた歩行型苗移植機において、
エンジン5から前記苗植付け体4への伝動部に、前記苗植付け体4をその昇降軌跡の上位側箇所で一時的に停止させて昇降駆動する間欠駆動機構Kと該間欠駆動機構Kによる停止時間を変更可能とする機構C3とを設け、
前記苗供給装置42を駆動する動力は前記間欠駆動機構Kより伝動上手側の伝動部から取り出して前記苗収容体45…が前記間欠駆動機構Kによって間欠的に停止することなく連続的に回動して周回駆動される構成とし、
前記苗植付け体4が昇降動する前記昇降機構3は、前記エンジン5からの動力を前記苗植付け体4に向けて伝動する伝動機構を内部に装備した伝動ケース部18c,18eから突出させた駆動軸25,27に装着して該駆動軸25,27の駆動回転により前記苗植付け体4とともに前記昇降機構3が昇降動する構成とし、
前記昇降機構3を駆動する前記駆動軸25,27を前記伝動ケース部18c,18eの左右一側方に突出させるとともに前記昇降機構3を前記伝動ケース部18c,18eの左右一側方に配置し、
前記苗供給装置42の前記苗収容体45…を周回動させる回転軸55に対してエンジン5からの動力を伝動して該回転軸55の駆動回転によって前記苗収容体45…が周回動する構成とし、
前記苗収容体45…を周回駆動する前記左右一方側の回転軸55に対して動力を伝達すべく前記苗植付け体4より前側から機体後方に向けてのびるように設けた伝動手段53bを、機体左右方向で前記苗植付け体4に対して前記昇降機構3を装着している前記伝動ケース部18c,18eの配置側に位置させて設けた構成としたことを特徴とする苗移植機。
The front wheel 7 and 7 and the rear wheels 6 and 6 are provided on both left and right sides, and the traveling device 1 is provided with a steering handle 2 for walking control at the rear. A plurality of seedlings having a beak-like seedling planting body 4, a cylindrical body 43 that opens up and down, and a bottom lid 44 that opens and closes a lower opening 43a of the cylindrical body 43. A walking-type seedling transplanter provided with a seedling supply device 42 configured to drop and supply seedlings accommodated in the seedling container 45 as a structure for rotating the containers 45. In
An intermittent drive mechanism K that temporarily stops the seedling planting body 4 at a position on the upper side of its raising / lowering trajectory from the engine 5 to the seedling planting body 4, and a stop time by the intermittent driving mechanism K And a mechanism C3 that can be changed,
The power for driving the seedling supply device 42 is taken out from the transmission portion on the upper transmission side from the intermittent drive mechanism K, and the seedling container 45 is continuously rotated without being intermittently stopped by the intermittent drive mechanism K. And is configured to be driven around,
The raising / lowering mechanism 3 for raising and lowering the seedling planting body 4 is a drive projecting from transmission case portions 18c and 18e equipped therein with a transmission mechanism for transmitting the power from the engine 5 toward the seedling planting body 4. The lifting mechanism 3 is moved up and down together with the seedling planting body 4 by driving rotation of the driving shafts 25 and 27 by mounting on the shafts 25 and 27.
The drive shafts 25 and 27 for driving the elevating mechanism 3 are protruded to the left and right sides of the transmission case portions 18c and 18e, and the elevating mechanism 3 is disposed on the left and right sides of the transmission case portions 18c and 18e. ,
A configuration in which the power from the engine 5 is transmitted to a rotation shaft 55 that rotates the seedling containers 45 of the seedling supply device 42, and the seedling containers 45 rotate around by rotation of the rotation shaft 55. age,
Transmission means 53b provided so as to extend from the front side of the seedling planting body 4 toward the rear side of the machine body so as to transmit power to the rotary shaft 55 on one of the left and right sides for driving the seedling container 45 around the machine body. A seedling transplanting machine characterized in that the seedling transplanting machine is configured so as to be positioned on the arrangement side of the transmission case portions 18c and 18e in which the lifting mechanism 3 is mounted on the seedling planting body 4 in the left-right direction.
前記苗供給装置42は、前記複数の苗収容体45…をループ状に互いに連結して、左右一対の上下方向の回転軸55,57のそれぞれに取付けた左右一対の移動作用体51,51に巻き掛けるとともに、前記左右一対の回転軸55,57の左右一方側の回転軸55に対してエンジン5からの動力を伝動して、該回転軸55の駆動回転によって前記複数の苗収容体45…が機体平面視で左右方向に長い長円状軌跡で周回動させる構成とし、
前記苗収容体45…を周回駆動する前記左右一方側の回転軸55に対して動力を伝達すべく前記苗植付け体4より前側から機体後方に向けてのびるように設けた伝動手段53bを、機体左右方向で前記苗植付け体4に対して前記昇降機構3を装着している前記伝動ケース部18c,18eの配置側に位置させて設け、
該伝動手段53bを介して動力が伝動される回転軸55と対をなすもう一つの回転軸57は、機体左右方向で苗植付け体4を越えて左右方向反対側に位置するように配置したことを特徴とする請求項1記載の苗移植機。
The seedling supply device 42 connects the plurality of seedling containers 45 to each other in a loop shape, and a pair of left and right moving action bodies 51, 51 attached to the pair of left and right rotating shafts 55, 57, respectively. In addition, the power from the engine 5 is transmitted to the left and right rotation shafts 55 of the pair of left and right rotation shafts 55, 57, and the plurality of seedling containers 45 are driven by the rotation of the rotation shaft 55. Is configured to rotate around a long oval locus in the left-right direction in plan view of the aircraft,
Transmission means 53b provided so as to extend from the front side of the seedling planting body 4 toward the rear side of the machine body so as to transmit power to the rotation shaft 55 on one of the left and right sides for driving the seedling container 45 around the machine body, In the left-right direction, the seedling planting body 4 is provided on the arrangement side of the transmission case portions 18c, 18e that are mounted with the lifting mechanism 3 on the seedling planting body 4,
Another rotating shaft 57 that is paired with the rotating shaft 55 to which power is transmitted via the transmission means 53b is disposed so as to be positioned on the opposite side in the left-right direction beyond the seedling planting body 4 in the left-right direction of the machine body. The seedling transplanter according to claim 1, wherein:
前記操縦ハンドル2を後部に取り付けて機体前後方向にのびる機体フレーム2bを、機体左右方向で前記苗植付け体4に対して前記昇降機構3を装着している前記伝動ケース部18c,18eの配置側とは反対側に位置させて設けるとともに、機体側面視で前記昇降機構3を装着している前記伝動ケース部18c,18eと前記苗収容体45…の前記回転軸55に伝動すべく前後にのびる前記伝動手段53bとの下方を機体後方にのびて更に前記伝動ケース部18c,18eの後方を後上がりにのびるように設け、その後上がりの後端部に前記操縦ハンドル2を取り付けた構成としたことを特徴とする請求項1或は請求項2記載の苗移植機。
Arrangement side of the transmission case portions 18c and 18e in which the steering frame 2 is attached to the rear portion and the body frame 2b extending in the longitudinal direction of the body is mounted on the raising / lowering mechanism 3 with respect to the seedling planting body 4 in the lateral direction of the body. Is provided on the opposite side of the machine body and extends in the front-rear direction so as to be transmitted to the rotary shaft 55 of the transmission case parts 18c, 18e and the seedling container 45, to which the lifting mechanism 3 is mounted, in a side view of the machine body. The lower part of the transmission means 53b extends to the rear of the fuselage, the rear of the transmission case parts 18c and 18e extends rearward, and the steering handle 2 is attached to the rear end of the rear part. The seedling transplanter according to claim 1 or 2, characterized in that.
JP2004162513A 2004-05-31 2004-05-31 Seedling transplanter Expired - Fee Related JP4631314B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2004162513A JP4631314B2 (en) 2004-05-31 2004-05-31 Seedling transplanter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2004162513A JP4631314B2 (en) 2004-05-31 2004-05-31 Seedling transplanter

Publications (2)

Publication Number Publication Date
JP2005341820A true JP2005341820A (en) 2005-12-15
JP4631314B2 JP4631314B2 (en) 2011-02-16

Family

ID=35494750

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2004162513A Expired - Fee Related JP4631314B2 (en) 2004-05-31 2004-05-31 Seedling transplanter

Country Status (1)

Country Link
JP (1) JP4631314B2 (en)

Cited By (9)

* 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
JP2013135701A (en) * 2013-04-10 2013-07-11 Iseki & Co Ltd Seedling transplanter
JP2013212127A (en) * 2013-07-23 2013-10-17 Iseki & Co Ltd Seedling transplanter
CN107135722A (en) * 2017-05-15 2017-09-08 中国农业大学 Track type suppending cup type zero-speed planting mechanism
CN108174665A (en) * 2018-02-14 2018-06-19 李志� Sprocket-type rice shoot transmission device
CN108668577A (en) * 2018-06-12 2018-10-19 山东省农业机械科学研究院 A kind of Radix Salviae Miltiorrhizae pot seedling and its transplanting mechanism and application method
CN109197063A (en) * 2018-09-28 2019-01-15 巴州良佳农机制造有限公司 Pot seedling automatic transplanting
CN110073786A (en) * 2019-06-12 2019-08-02 新疆农业大学 The continuous seedling taking and feeding device of transplanter

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH11227593A (en) * 1998-02-16 1999-08-24 Iseki & Co Ltd Farm working machine
JP2001258315A (en) * 2000-03-22 2001-09-25 Iseki & Co Ltd Transmission gear for seedling planting machine
JP2004113210A (en) * 2002-09-30 2004-04-15 Iseki & Co Ltd Seedling transplanter
JP2004113209A (en) * 2002-09-30 2004-04-15 Iseki & Co Ltd Seedling transplanter
JP2004113206A (en) * 2002-09-30 2004-04-15 Iseki & Co Ltd Seedling transplanter
JP2004141046A (en) * 2002-10-23 2004-05-20 Seirei Ind Co Ltd Vegetable transplanter and method for transplanting seedling with vegetable transplanter

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH11227593A (en) * 1998-02-16 1999-08-24 Iseki & Co Ltd Farm working machine
JP2001258315A (en) * 2000-03-22 2001-09-25 Iseki & Co Ltd Transmission gear for seedling planting machine
JP2004113210A (en) * 2002-09-30 2004-04-15 Iseki & Co Ltd Seedling transplanter
JP2004113209A (en) * 2002-09-30 2004-04-15 Iseki & Co Ltd Seedling transplanter
JP2004113206A (en) * 2002-09-30 2004-04-15 Iseki & Co Ltd Seedling transplanter
JP2004141046A (en) * 2002-10-23 2004-05-20 Seirei Ind Co Ltd Vegetable transplanter and method for transplanting seedling with vegetable transplanter

Cited By (11)

* 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
JP2013135701A (en) * 2013-04-10 2013-07-11 Iseki & Co Ltd Seedling transplanter
JP2013212127A (en) * 2013-07-23 2013-10-17 Iseki & Co Ltd Seedling transplanter
CN107135722A (en) * 2017-05-15 2017-09-08 中国农业大学 Track type suppending cup type zero-speed planting mechanism
CN108174665A (en) * 2018-02-14 2018-06-19 李志� Sprocket-type rice shoot transmission device
CN108174665B (en) * 2018-02-14 2024-02-06 李志� Chain wheel type seedling conveying device
CN108668577A (en) * 2018-06-12 2018-10-19 山东省农业机械科学研究院 A kind of Radix Salviae Miltiorrhizae pot seedling and its transplanting mechanism and application method
CN109197063A (en) * 2018-09-28 2019-01-15 巴州良佳农机制造有限公司 Pot seedling automatic transplanting
CN109197063B (en) * 2018-09-28 2023-12-26 巴州良佳农机制造有限公司 Automatic pot seedling transplanting machine
CN110073786A (en) * 2019-06-12 2019-08-02 新疆农业大学 The continuous seedling taking and feeding device of transplanter

Also Published As

Publication number Publication date
JP4631314B2 (en) 2011-02-16

Similar Documents

Publication Publication Date Title
JP4631314B2 (en) Seedling transplanter
JP2015080448A (en) Transplanter
JP5315926B2 (en) Seeding and seedling planting machine
JP4033227B2 (en) Seedling transplanter
JP2010004842A (en) Seedling transplanter
JP4200300B2 (en) Seedling transplanter
JP4697396B2 (en) Seedling planting machine
JP2007143424A (en) Multiple row seedling planter
JP4678176B2 (en) Seedling transplanter
JP4247580B2 (en) Seedling planting machine
JP2004261089A (en) Sulky seedling planting machine
JP4200299B2 (en) Seedling transplanter
JP4483507B2 (en) Seedling transplanter
JP2007295816A (en) Seedling planter
JP4200298B2 (en) Seedling transplanter
JP2005102568A (en) Seedling transplanter
JP3873860B2 (en) Seedling transplanter
JP4032904B2 (en) Seedling transplanter
JP3945359B2 (en) Seedling transplanter
JP5776732B2 (en) Seeding machine
JP3997352B2 (en) Seedling transplanter
JP3873998B2 (en) Seedling transplanter
JP3873997B2 (en) Seedling feeder
JP2008099571A (en) Seedling transplanter for multi row planting
JP4032905B2 (en) Seedling transplanter

Legal Events

Date Code Title Description
A621 Written request for application examination

Free format text: JAPANESE INTERMEDIATE CODE: A621

Effective date: 20070530

A977 Report on retrieval

Free format text: JAPANESE INTERMEDIATE CODE: A971007

Effective date: 20090529

A131 Notification of reasons for refusal

Free format text: JAPANESE INTERMEDIATE CODE: A131

Effective date: 20090623

A521 Request for written amendment filed

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20090824

A131 Notification of reasons for refusal

Free format text: JAPANESE INTERMEDIATE CODE: A131

Effective date: 20100309

A521 Request for written amendment filed

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20100423

TRDD Decision of grant or rejection written
A01 Written decision to grant a patent or to grant a registration (utility model)

Free format text: JAPANESE INTERMEDIATE CODE: A01

Effective date: 20101019

A01 Written decision to grant a patent or to grant a registration (utility model)

Free format text: JAPANESE INTERMEDIATE CODE: A01

A61 First payment of annual fees (during grant procedure)

Free format text: JAPANESE INTERMEDIATE CODE: A61

Effective date: 20101101

R150 Certificate of patent or registration of utility model

Ref document number: 4631314

Country of ref document: JP

Free format text: JAPANESE INTERMEDIATE CODE: R150

Free format text: JAPANESE INTERMEDIATE CODE: R150

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20131126

Year of fee payment: 3

LAPS Cancellation because of no payment of annual fees