JP5722741B2 - Preliminary seedling placement structure for riding rice transplanter - Google Patents

Preliminary seedling placement structure for riding rice transplanter Download PDF

Info

Publication number
JP5722741B2
JP5722741B2 JP2011216896A JP2011216896A JP5722741B2 JP 5722741 B2 JP5722741 B2 JP 5722741B2 JP 2011216896 A JP2011216896 A JP 2011216896A JP 2011216896 A JP2011216896 A JP 2011216896A JP 5722741 B2 JP5722741 B2 JP 5722741B2
Authority
JP
Japan
Prior art keywords
preliminary seedling
seedling
vehicle body
preliminary
spare
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.)
Active
Application number
JP2011216896A
Other languages
Japanese (ja)
Other versions
JP2013074841A (en
Inventor
園田 義昭
義昭 園田
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Kubota Corp
Original Assignee
Kubota Corp
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 Kubota Corp filed Critical Kubota Corp
Priority to JP2011216896A priority Critical patent/JP5722741B2/en
Publication of JP2013074841A publication Critical patent/JP2013074841A/en
Application granted granted Critical
Publication of JP5722741B2 publication Critical patent/JP5722741B2/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Landscapes

  • Transplanting Machines (AREA)

Description

本発明は、走行車体の後部にリンク機構を介して苗植付装置を連結し、前記走行車体の前端部からの乗降を可能にする左右の乗降ステップに対する横方向の車体外側にそれぞれ予備苗載置装置を備え、前記予備苗載置装置を、複数の予備苗台を上下に折り重ねた折り畳み状態と一直線上に前後に並べた展開状態とに切り換え可能に構成した乗用田植機の予備苗載置構造に関する。   The present invention connects a seedling planting device to the rear part of the traveling vehicle body via a link mechanism, and places the seedlings on the outside of the vehicle body in the lateral direction with respect to the left and right getting-on / off steps that enable getting on and off from the front end of the traveling vehicle body. A preliminary seedling placement system for a riding rice transplanter configured to be switched between a folded state in which a plurality of preliminary seedling stands are folded up and down and a deployed state in which the preliminary seedling stand is arranged in a straight line Related to the structure.

乗用田植機の予備苗載置構造としては、前後の予備苗台(予備苗載せ台)を予備苗載置用の倒伏姿勢から上方に90度程度まで揺動させた起立姿勢での保持を可能にする角度保持機構を備えて、前後の予備苗台を倒伏姿勢と起立姿勢とに切り換え可能に構成したものがある(例えば特許文献1参照)。   As a spare seedling placement structure for riding rice transplanters, it is possible to hold the front and rear spare seedling stands (standby seedling placement stand) in an upright posture by swinging upwards from the lying posture for placing the preliminary seedling to about 90 degrees. There is a configuration in which an angle holding mechanism is provided so that the front and rear stands can be switched between a lying posture and a standing posture (see, for example, Patent Document 1).

特開2009−261364号公報(段落番号0050、図4、図6)JP 2009-261364 A (paragraph number 0050, FIG. 4, FIG. 6)

上記の構成では、全ての予備苗台に予備苗を載置している状態では、予備苗の脱落を招くことから前後の予備苗台を起立姿勢に切り換えることができず、そのため、全ての予備苗台に予備苗を載置している状態で乗降する必要が生じた場合には、前後の予備苗台が倒伏姿勢であることで制限された乗降空間から乗降する、あるいは、前後の予備苗台から予備苗を取り出して前後の予備苗台を起立姿勢に切り換えてから乗降することになり、乗降性の向上を図る上において改善の余地がある。   In the above configuration, in the state where the spare seedlings are placed on all the spare seedling stands, the spare seedlings are dropped off, so that the front and rear spare seedling stands cannot be switched to the upright posture. If it is necessary to get on and off with the spare seedlings placed on the seedling stand, get on and off from the boarding space restricted by the front and back spare seedling stands being in the lying position, or front and rear spare seedlings The preliminary seedlings are taken out from the stand and the front and rear preliminary seedling stands are switched to the standing posture before boarding / exiting, and there is room for improvement in improving the boarding / exiting ability.

又、前後の予備苗台を倒伏姿勢に切り換えた状態では、前側の予備苗台が走行車体の前方に大きく張り出すようになっており、そして、全ての予備苗台に予備苗を載置している状態では、その張り出し量を減少させることができないことから、圃場際に電柱などが立設されている圃場での植え付け作業においては、その電柱などが隣接する畦際で車体を旋回させる場合に前側の予備苗台を電柱などに接触させる虞がある。そのため、植え付け作業での畦際旋回を慎重に行う必要が生じることになり、作業効率の向上を図る上において改善の余地がある。   In addition, in the state where the front and rear spare seedling stands are switched to the lying posture, the front spare seedling stand protrudes greatly in front of the traveling vehicle body, and the spare seedlings are placed on all the spare seedling stands. When projecting in a field where power poles are erected on the field, the vehicle body is swung around the adjacent shoreline because the amount of overhang cannot be decreased In addition, there is a risk that the front side nursery stand will come into contact with the utility pole. For this reason, it is necessary to carefully perform the drooping turning in the planting work, and there is room for improvement in improving work efficiency.

本発明の目的は、予備苗載置構造に簡単な改良を施して乗降性及び作業効率の向上を図れるようにすることにある。   An object of the present invention is to make simple improvements to the preliminary seedling placement structure so as to improve the boarding / exiting performance and work efficiency.

第1の発明は、走行車体の後部にリンク機構を介して苗植付装置を連結し、前記走行車体の前端部からの乗降を可能にする左右の乗降ステップに対する横方向の車体外側にそれぞれ予備苗載置装置を備え、前記予備苗載置装置を、複数の予備苗台を上下に折り重ねた折り畳み状態と一直線上に前後に並べた展開状態とに切り換え可能に構成した乗用田植機の予備苗載置構造において、
前記予備苗載置装置に、少なくとも、前記展開状態で最前に位置する予備苗台を予備苗の載置が可能な前上がり傾斜姿勢で固定保持する固定手段と、前記展開状態で最後に位置する予備苗台を予備苗の載置が可能な後上がり傾斜姿勢で固定保持する固定手段とのいずれか一つを装備するとともに、前記展開状態では、前記最前の予備苗台又は前記最後の予備苗台の下方に位置して前記最前の予備苗台又は前記最後の予備苗台を受け止め支持し、かつ、前記折り畳み状態では、前記予備苗載置装置から前方又は後方に延出して乗降用の取っ手として機能する受止具を装備してある。
According to a first aspect of the present invention, a seedling planting device is connected to a rear portion of a traveling vehicle body via a link mechanism, and a spare is provided outside the vehicle body in the lateral direction with respect to the left and right getting-on / off steps enabling the getting on and off from the front end of the traveling vehicle body. A spare for a rice transplanter comprising a seedling placement device, wherein the spare seedling placement device is configured to be switchable between a folded state in which a plurality of preliminary seedling stands are folded up and down and a deployed state in which the spare seedling stands are arranged in a straight line. In the seedling placement structure,
Fixing means for fixing and holding at least the preliminary seedling stand positioned in the foremost position in the unfolded state in a forwardly inclined posture capable of placing the pre-seeding seedling, and finally positioned in the unfolded state in the preliminary seedling placing device The preliminary seedling stand is equipped with any one of fixing means for fixing and holding the preliminary seedling in a rearwardly inclined posture capable of placing the preliminary seedling, and in the unfolded state, the foremost preliminary seedling stand or the last preliminary seedling A handle for boarding / exiting that extends forward or backward from the preliminary seedling placement device in the folded state in the folded state, receiving and supporting the foremost preliminary seedling base or the last preliminary seedling base. Equipped with a receiver that functions as

第1の発明によると、最前の予備苗台を前上がり傾斜姿勢で固定保持する固定手段を装備した場合は、最前の予備苗台を前上がり傾斜姿勢に切り換えることで、予備苗を載置した状態のままで最前の予備苗台の車体前方への張り出し量を減少させることができる。   According to 1st invention, when equipped with the fixing means which fixes and hold | maintains the foremost preliminary seedling stand in the front rising inclination posture, the preliminary seedling was placed by switching the foremost preliminary seedling stand to the front rising inclination posture. It is possible to reduce the amount of the front spare seedling projecting to the front of the vehicle body in the state.

これにより、左右の乗降ステップを利用して走行車体の前端部から乗降する際の乗降空間において最前の予備苗台によって制限される範囲を減少させることができる。又、圃場際に電柱などが立設されている圃場での植え付け作業において、その電柱などが隣接する畦際で車体を旋回させる場合に最前の予備苗台が電柱などに接触し難くなる。   Thereby, the range restrict | limited by the foremost preliminary seedling stand in the boarding / alighting space at the time of boarding / alighting from the front-end part of a driving | running | working vehicle body using a right-and-left boarding step can be decreased. In addition, in planting work in a field where a power pole or the like is erected on the field, when the vehicle body is turned at the side where the power pole or the like is adjacent, it becomes difficult for the foremost stand to make contact with the power pole or the like.

一方、最後の予備苗台を後上がり傾斜姿勢で固定保持する固定手段を装備した場合は、最後の予備苗台を後上がり傾斜姿勢に切り換えることで、予備苗を載置した状態のままで最後の予備苗台の後方への張り出し量を減少させることができる。   On the other hand, when equipped with a fixing means for fixing and holding the last preliminary seedling stand in the rearward tilted posture, the last preliminary seedling stand is switched to the rearward tilted posture, so that the last seedling stand is placed in the final state. It is possible to reduce the amount of protrusion of the spare seedling stand to the rear.

これにより、走行車体の横側端部から乗降する際の乗降空間において最後の予備苗台によって制限される範囲を減少させることができる。   Thereby, the range restricted by the last reserve seedling stand in the boarding / alighting space at the time of boarding / alighting from the side edge part of the traveling vehicle body can be reduced.

従って、最前の予備苗台を前上がり傾斜姿勢で固定保持する固定手段を装備した場合には車体前端部からの乗降性及び作業効率の向上を図ることができ、又、最後の予備苗台を後上がり傾斜姿勢で固定保持する固定手段を装備した場合には車体横側端部からの乗降性の向上を図ることができ、更に、双方の固定手段を装備した場合には車体前端部及び車体横側端部からの乗降性並びに作業効率の向上を図ることができる。   Therefore, when equipped with a fixing means for fixing and holding the foremost preliminary seedling stand in a forward-tilting posture, it is possible to improve the ease of getting on and off from the front end of the vehicle body and work efficiency, and the last preliminary seedling stand When equipped with a fixing means that holds and holds the vehicle in a tilted rearward posture, it is possible to improve the ease of getting on and off from the lateral end of the vehicle body, and when equipped with both fixing means, the front end portion of the vehicle body and the vehicle body It is possible to improve boarding / exiting performance from the side end and work efficiency.

第2の発明は、上記第1の発明において、
前記固定手段を、前記予備苗載置装置における車体内側の横側部に装備してある。
According to a second invention, in the first invention,
The fixing means is provided on a lateral side portion inside the vehicle body in the preliminary seedling placement device.

第2の発明によると、固定手段を予備苗載置装置における車体外側の横側部に装備する場合に比較して、搭乗した運転者による固定手段の操作が行い易くなり、これにより、乗降性及び作業効率の向上を更に図ることができる。   According to the second invention, compared to the case where the fixing means is mounted on the lateral side portion outside the vehicle body in the preliminary seedling placement device, it becomes easier for the driver to operate the fixing means, and thereby the boarding / exiting property can be improved. In addition, the work efficiency can be further improved.

第3の発明は、上記第1又は第2の発明において、
前記走行車体の後部に、その後部に備えた苗補給用のステップを後方から囲む状態となる平面視U字状に形成した手摺りを備え、
前記展開状態では、最後に位置する予備苗台の後端が前記手摺りの左右両端部に近接するように構成してある。
According to a third invention, in the first or second invention,
At the rear of the traveling vehicle body is provided with a handrail formed in a U-shape in plan view that surrounds the seedling replenishment step provided at the rear from the rear,
In the unfolded state, the rear end of the preliminary seedling stand positioned last is configured to be close to the left and right end portions of the handrail.

第3の発明によると、左右の予備苗台に載置した各予備苗を苗載台に供給する場合には、各予備苗を、予備苗台に載置した状態のまま、車体前側から車体後方の苗植付装置の近くまで簡単かつ円滑に搬送することができ、その搬送後は、苗補給用のステップ及び手摺りを使用しながら苗植付装置に簡単に供給することができる。   According to the third aspect of the present invention, when each spare seedling placed on the left and right spare seedling stands is supplied to the seedling placing stand, each spare seedling is placed on the spare seedling stand and the vehicle body is moved from the vehicle body front side. It can be easily and smoothly transported to the vicinity of the rear seedling planting device, and after the transport, it can be easily supplied to the seedling planting device while using the seedling replenishment step and the handrail.

従って、予備苗載置装置から苗植付装置への予備苗供給作業での作業性を向上させることができる。   Therefore, the workability | operativity in the preliminary seedling supply operation | work from a preliminary seedling mounting apparatus to a seedling planting apparatus can be improved.

第4の発明は、上記第3の発明において、
前記手摺りの左右両端部に、それらの前下方に設けた車体側との連結箇所に向けて延出する延出部分を備え、
前記展開状態では、最後に位置する予備苗台が前記延出部分と平面視で重なり合うように構成してある。
According to a fourth invention, in the third invention,
The left and right end portions of the handrail are provided with extending portions that extend toward the connecting portion with the vehicle body side provided at the front lower side thereof,
In the unfolded state, the last seedling stand is configured to overlap the extended portion in plan view.

第4の発明によると、予備苗載置装置の展開状態では、予備苗載置装置から苗植付装置への予備苗供給時には使用しない手摺りにおける下側の延出部分の上方に最後の予備苗台を位置させることができ、これにより、最後の予備苗台を車体後方の苗植付装置に更に近づけた状態にすることができる。   According to the fourth invention, in the unfolded state of the spare seedling placement device, the last spare part is located above the lower extension portion of the handrail that is not used when supplying the spare seedling from the spare seedling placement device to the seedling planting device. The seedling stand can be positioned, whereby the last preliminary seedling stand can be brought closer to the seedling planting device at the rear of the vehicle body.

従って、予備苗載置装置から苗植付装置への予備苗供給作業での作業性を更に向上させることができる。   Therefore, the workability | operativity in the preliminary seedling supply operation | work from a preliminary seedling mounting apparatus to a seedling planting apparatus can further be improved.

第5の発明は、上記第1〜4のいずれか一つの発明において、
前記展開状態では、前記複数の予備苗台の車体横方向内側端縁が、前側ほど車体横方向内側に位置する状態で傾斜する前記乗降ステップの車体横方向外側端縁と平面視で略一致する状態となるように、前記予備苗載置装置を構成して、前記走行車体の左右で一直線上に前後に並ぶ前記複数の予備苗台の姿勢が先窄まり姿勢となるように構成してある。
A fifth invention is the invention according to any one of the first to fourth inventions,
In the unfolded state, the vehicle body lateral inner edges of the plurality of preliminary seedling stands substantially coincide with the vehicle lateral lateral outer edges of the getting-on / off step inclined in a state of being located on the vehicle lateral inner side toward the front. The preliminary seedling placement device is configured so as to be in a state, and the postures of the plurality of preliminary seedling stands arranged in a straight line on the left and right of the traveling vehicle body are configured to be tapered. .

第5の発明によると、予備苗載置装置を展開状態に切り換えた植え付け作業中においては、左右の乗降ステップ上の領域を予備苗供給用の作業領域として確保することができる。   According to the fifth invention, during the planting operation in which the preliminary seedling placement device is switched to the expanded state, the areas on the left and right boarding steps can be secured as the work area for supplying the preliminary seedlings.

これにより、左右の予備苗台に載置した各予備苗を苗植付装置に供給する場合には、前後に並ぶ予備苗台に沿った予備苗供給用の作業領域での作業で、各予備苗を、予備苗台に載置した状態のままで、車体前側から車体後方の苗植付装置の近くまで簡単かつ円滑に搬送することができる。   As a result, when each of the spare seedlings placed on the left and right spare seedling stands is supplied to the seedling planting device, each spare seedling is operated in the work area for supplying the spare seedlings along the spare seedling stands arranged in front and rear. The seedling can be transported easily and smoothly from the front side of the vehicle body to the vicinity of the seedling planting device at the rear side of the vehicle body while being placed on the spare seedling stand.

従って、予備苗載置装置から苗植付装置への予備苗供給作業での作業性を向上させることができる。   Therefore, the workability | operativity in the preliminary seedling supply operation | work from a preliminary seedling mounting apparatus to a seedling planting apparatus can be improved.

ミッドマウント施肥仕様の乗用田植機の全体左側面図である。It is the whole left side view of the riding rice transplanter of a mid mount fertilization specification. ミッドマウント施肥仕様の乗用田植機の全体平面図である。It is the whole top view of the riding rice transplanter of a mid mount fertilization specification. 車体後部の構成を示す要部の左側面図である。It is a left view of the principal part which shows the structure of a vehicle body rear part. 繰出機構の構成を示す要部の縦断左側面図である。It is a vertical left view of the principal part which shows the structure of a feeding mechanism. 手摺りの構成を示す要部の左側面図である。It is a left view of the principal part which shows the structure of a handrail. 手摺りの連結部材の構成を示す要部の横断平面図である。It is a cross-sectional top view of the principal part which shows the structure of the connection member of a handrail. 予備苗載置装置の展開状態を示す要部の平面図である。It is a top view of the principal part which shows the expansion | deployment state of a preliminary seedling mounting apparatus. 予備苗載置装置の展開状態を示す要部の左側面図である。It is a left view of the principal part which shows the unfolding state of a preliminary seedling placement apparatus. 最前の予備苗台を前上がり傾斜姿勢で固定保持し最後の予備苗台を後上がり傾斜姿勢で固定保持した状態を示す要部の左側面図である。FIG. 6 is a left side view of a main part showing a state in which the foremost preliminary seedling stand is fixedly held in a forwardly inclined posture and the last preliminary seedling stand is fixedly held in a rearwardly inclined posture. 本発明をペースト施肥仕様の乗用田植機に採用した別実施形態での要部の左側面図である。It is a left view of the principal part in another embodiment which employ | adopted this invention for the riding rice transplanter of paste fertilization specification. 予備苗載置装置を予備苗2枚載置仕様に構成した別実施形態での要部の左側面図である。It is a left view of the principal part in another embodiment which comprised the preliminary seedling mounting apparatus in the 2 spare seedling mounting specification. 予備苗載置装置を予備苗2枚載置仕様に構成した別実施形態での予備苗台の各姿勢切り換え状態を示す要部の左側面図である。It is a left view of the principal part which shows each attitude | position switching state of the preliminary seedling stand in another embodiment which comprised the preliminary seedling mounting apparatus in the specification with two preliminary seedlings mounting.

以下、本発明を実施するための形態の一例として、本発明に係る乗用田植機の予備苗載置構造を、乗用田植機の一例であるミッドマウント施肥仕様の6条植え乗用田植機に適用した実施形態を図面に基づいて説明する。   Hereinafter, as an example of a form for carrying out the present invention, the preliminary seedling placement structure of the riding rice transplanter according to the present invention is applied to a six-row planting rice transplanter with a mid-mount fertilization specification that is an example of a riding rice transplanter. An embodiment is described based on a drawing.

図1及び図2に示すように、本実施形態で例示する乗用田植機は、4輪駆動型に構成した走行車体1の後部に、単動型の油圧シリンダを採用した昇降シリンダ2の作動で上下揺動する平行四連リンク式のリンク機構3を装備し、このリンク機構3の後端部に6条用の苗植付装置4を連結してある。又、走行車体1の後端部に6条用の施肥装置5を搭載してある。そして、これらによって最大6条の植え付け及び施肥が可能な6条植え用のミッドマウント施肥仕様に構成してある。   As shown in FIGS. 1 and 2, the riding rice transplanter exemplified in this embodiment is based on the operation of a lifting cylinder 2 that employs a single-acting hydraulic cylinder at the rear of a traveling vehicle body 1 configured as a four-wheel drive type. A parallel quadruple link type link mechanism 3 that swings up and down is installed, and a seedling planting device 4 for 6 strips is connected to a rear end portion of the link mechanism 3. In addition, a fertilizing device 5 for six strips is mounted on the rear end of the traveling vehicle body 1. And it is comprised by the mid-mount fertilization specification for 6 row planting which can plant and fertilize a maximum of 6 strips by these.

走行車体1は、前車軸ケース6よりも車体前側に配備した前部フレーム7にエンジン8を防振搭載してあり、このエンジン8からの動力を主変速装置としての静油圧式無段変速装置(図示せず)にベルト伝動し、静油圧式無段変速装置による変速後の動力を、トランスミッションケース(以下、T/Mケースと称する)9の内部において走行用と作業用とに分岐する。そして、走行用の動力は、T/Mケース9に副変速装置として内蔵した走行用のギア式変速装置(図示せず)などを介して左右の前輪10及び左右の後輪11に伝達する。又、作業用の動力は、T/Mケース9に株間変速装置として内蔵した作業用のギア式変速装置(図示せず)及び植付クラッチ(図示せず)などを介して苗植付装置4に伝達する。施肥装置5には、走行用のギア式変速装置による変速後の動力を施肥作業用として伝達してある。   In the traveling vehicle body 1, an engine 8 is mounted in a vibration-proof manner on a front frame 7 disposed on the front side of the vehicle body relative to the front axle case 6, and a hydrostatic continuously variable transmission as a main transmission is driven by the power from the engine 8. Power is transmitted to the belt (not shown), and the power after shifting by the hydrostatic continuously variable transmission is branched into traveling and working in a transmission case (hereinafter referred to as T / M case) 9. The traveling power is transmitted to the left and right front wheels 10 and the left and right rear wheels 11 via a traveling gear-type transmission (not shown) built in the T / M case 9 as an auxiliary transmission. The working power is supplied to the seedling planting device 4 via a working gear-type transmission (not shown) and a planting clutch (not shown) incorporated in the T / M case 9 as an inter-strain transmission. To communicate. The fertilizer 5 is transmitted with power after shifting by the traveling gear type transmission for fertilization work.

苗植付装置4は、走行車体1からの作業用の動力により、最大6条のマット状苗を載置する苗載台12が横送り機構(図示せず)の作動で左右方向に一定ストロークで往復移動するように構成してある。又、苗載台12の各マット状苗に対応して左右方向に一定間隔をあけて並ぶように配備したロータリ式の6基の植付機構13が、苗載台12の下端から植付苗を所定量ずつ取り出して、左右方向に並ぶ3つの整地フロート14で整地した圃場の泥土部に植え付け供給するように構成してある。そして、苗載台12が左右のストローク端に到達するごとにベルト式の縦送り機構15が作動して、苗載台12に載置した各マット状苗を苗載台12の下端に向けて所定ピッチで縦送りするように構成してある。   In the seedling planting device 4, the seedling placing table 12 on which a maximum of six mat-like seedlings are placed by a working power from the traveling vehicle body 1 has a constant stroke in the left-right direction by the operation of a lateral feed mechanism (not shown). Is configured to reciprocate. In addition, six rotary-type planting mechanisms 13 arranged so as to be arranged at regular intervals in the left-right direction corresponding to the mat-like seedlings of the seedling stage 12 are planted seedlings from the lower end of the seedling stage 12. Are taken out by a predetermined amount and are planted and supplied to a mud portion of a farm field leveled by three leveling floats 14 arranged in the left-right direction. Each time the seedling stage 12 reaches the left and right stroke ends, the belt-type vertical feed mechanism 15 is activated, and each mat-like seedling placed on the seedling stage 12 is directed toward the lower end of the seedling stage 12. It is configured to feed vertically at a predetermined pitch.

図1〜4に示すように、施肥装置5は、施肥作業用の動力で走行車体1の後端部に搭載した4基の繰出機構16が作動して、それらの上部に連通装備した左右のホッパ17に貯留した粒状肥料をホッパ17から所定量ずつ繰り出すように構成してある。又、走行車体1の後端部に配備した電動式のブロワ18が走行車体1からの電力で作動して搬送風を発生させることで、各繰出機構16が繰り出した粒状肥料を、ブロワ18から給気管19を介して供給される搬送風に乗せて、各繰出機構16に連通接続した施肥ホース20を介して、各整地フロート14の左右両側部にそれぞれ備えた作溝器21のうちの対応するものに供給し、各作溝器21により圃場の泥土内に埋没させるように構成してある。   As shown in FIGS. 1 to 4, the fertilizer 5 has four feeding mechanisms 16 mounted on the rear end portion of the traveling vehicle body 1 with the power for fertilization work, and the left and right mounted on the upper part thereof. The granular fertilizer stored in the hopper 17 is configured to be fed out from the hopper 17 by a predetermined amount. Further, the electric blower 18 provided at the rear end of the traveling vehicle body 1 is operated by the electric power from the traveling vehicle body 1 to generate the conveying wind, so that the granular fertilizer fed by each feeding mechanism 16 is removed from the blower 18. Corresponding of the grooving devices 21 respectively provided on the left and right sides of each leveling float 14 through a fertilizer hose 20 that is connected to the feeding mechanism 16 and is carried on the conveying wind supplied through the air supply pipe 19. It supplies to what to do, and it is comprised so that it may be buried in the mud of a farm field by each grooving device 21. FIG.

各繰出機構16は、最大2条の粒状肥料を繰り出すことが可能な2条用に構成してある。そして、左右両端の繰出機構16が2条の粒状肥料の繰り出しを行い、左右中央側の2つの繰出機構16が1条の粒状肥料の繰り出しを行うように設定することで、4基の繰出機構16で6条の粒状肥料の繰り出しを行うように構成してある。   Each feeding mechanism 16 is configured for two strips capable of feeding a maximum of two granular fertilizers. Then, four feeding mechanisms are set by setting the feeding mechanisms 16 at the left and right ends to feed two granular fertilizers and the two feeding mechanisms 16 at the left and right central sides to feed one granular fertilizer. 16 is configured to feed out six rows of granular fertilizer.

各繰出機構16において、左右のホッパ17に連通接続した上部ケース22は、吸気管20及び施肥ホース20に連通接続した下部ケース23に、それらの後端部に形成した係合部24を支点にした上下方向への開閉揺動が可能となる状態に連結してある。下部ケース23には、その側面に突設した左右向きの支軸部23Aを支点にした揺動操作で上部ケース22に備えた係合部22Aに係合することで上部ケース22を閉じ位置に係合保持するロックアーム25を備えてある。   In each feeding mechanism 16, the upper case 22 connected to the left and right hoppers 17 is connected to the lower case 23 connected to the intake pipe 20 and the fertilizer hose 20 with an engaging portion 24 formed at the rear end thereof as a fulcrum. It is connected in a state where it can be opened and closed in the vertical direction. The lower case 23 is brought into a closed position by engaging with an engaging portion 22A provided in the upper case 22 by a swinging operation using a left and right support shaft portion 23A projecting from the side surface of the lower case 23 as a fulcrum. A lock arm 25 for engaging and holding is provided.

左右のホッパ17及び各繰出機構16の上部ケース22は、走行車体1の後部に装備した施肥フレーム26で支持してある。施肥フレーム26は、左右のホッパ17及び各上部ケース22を開閉揺動可能に支持する揺動フレーム部27と、各上部ケース22の閉じ状態において揺動フレーム部27の前端部分を受け止め支持する固定フレーム部28と、揺動フレーム部27の閉じ状態での固定フレーム部28との係合保持を可能にするロック機構(図示せず)とを備えている。   The left and right hoppers 17 and the upper case 22 of each feeding mechanism 16 are supported by a fertilization frame 26 provided at the rear part of the traveling vehicle body 1. The fertilizing frame 26 is a fixed frame that receives and supports the swing frame 27 that supports the left and right hoppers 17 and the upper cases 22 so as to be openable and swingable, and the front end portion of the swing frame 27 when the upper cases 22 are closed. A lock mechanism (not shown) is provided that enables engagement between the frame portion 28 and the fixed frame portion 28 when the swinging frame portion 27 is closed.

つまり、ロック機構及びロックアーム25を解除操作して上部ケース22を揺動フレーム部27とともに開放揺動させることで、各繰出機構16の内部に備えた繰出ロール29の清掃やブラシ30の交換などのメンテナンスを容易に行うことができる。   That is, by releasing the lock mechanism and the lock arm 25 and swinging the upper case 22 together with the swing frame portion 27, cleaning of the feeding rolls 29 provided in each feeding mechanism 16 and replacement of the brush 30 are performed. Can be easily maintained.

図1及び図3に示すように、施肥フレーム26の揺動フレーム部27は、その揺動支点となる左右向きの支軸部分27Aを、左右のホッパ17及び各繰出機構16の重心に近くなるように車体前側に変位させてある。これにより、上部ケース22及び揺動フレーム部27の後方への開放揺動操作が行い易くなっている。   As shown in FIGS. 1 and 3, the swing frame portion 27 of the fertilizer application frame 26 has a left and right support shaft portion 27 </ b> A serving as a swing support point close to the center of gravity of the left and right hoppers 17 and the feeding mechanisms 16. As shown in FIG. Thereby, it is easy to perform the swinging operation to open the upper case 22 and the swinging frame portion 27 to the rear.

図1〜3に示すように、走行車体1の後半部には搭乗運転部31を形成してある。搭乗運転部31には、前輪操舵用のステアリングホイール32及び運転座席33などを配備してある。搭乗運転部31において、エンジン8を覆うボンネット34の後方箇所には施肥装置5よりも左右幅の狭い搭乗ステップ35を敷設してある。又、ボンネット34の左右の横外側には、走行車体1の前端部からの乗降を可能にする乗降ステップ36を搭乗ステップ35と同じ高さで搭乗ステップ35に連なる状態で敷設してある。走行車体1の後部には、苗載台12への苗補給時やホッパ17への肥料補給時に踏み台として使用可能な後部ステップ37を敷設してある。搭乗ステップ35及び乗降ステップ36に対する横方向の車体外側には、搭乗領域の左右幅を施肥装置5よりも幅広に拡張する拡張ステップ38を、それらのステップ面が同じ高さになる状態で配備してある。左右の拡張ステップ38の後方には、苗載台12への苗補給時やホッパ17への肥料補給時に踏み台として使用可能な補助ステップ39を配備してある。   As shown in FIGS. 1 to 3, a boarding operation unit 31 is formed in the rear half of the traveling vehicle body 1. The boarding driver 31 is provided with a steering wheel 32 and a driver seat 33 for front wheel steering. In the boarding operation unit 31, a boarding step 35 having a narrower left and right width than the fertilizer application device 5 is laid at a rear portion of the hood 34 covering the engine 8. In addition, on the left and right lateral sides of the bonnet 34, a boarding / unloading step 36 enabling the boarding / alighting from the front end of the traveling vehicle body 1 is laid at the same height as the boarding step 35 and connected to the boarding step 35. A rear step 37 that can be used as a stepping platform is provided at the rear of the traveling vehicle body 1 when the seedlings are supplied to the seedling platform 12 or the fertilizer is supplied to the hopper 17. On the outer side of the vehicle body in the lateral direction with respect to the boarding step 35 and the boarding / alighting step 36, an expansion step 38 for expanding the lateral width of the boarding region wider than the fertilizer application 5 is provided in a state in which those step surfaces are at the same height. It is. Behind the left and right expansion steps 38, an auxiliary step 39 is provided which can be used as a stepping board when seedlings are supplied to the seedling platform 12 or when fertilizer is supplied to the hopper 17.

施肥フレーム26の固定フレーム部28は、走行車体1に連結する下端の連結部分28Aが後部ステップ37よりも車体後方側に位置するように、その下部側が上部側よりも車体後方側に位置する状態に屈曲させてある。これにより、後部ステップ37に固定フレーム部挿通用の開口などを形成することなく、固定フレーム部28を、その上端部で揺動フレーム部27の前端部分を受け止め支持することが可能な状態で装備することができる。   The fixed frame portion 28 of the fertilizer application frame 26 is in a state in which the lower side thereof is positioned on the rear side of the vehicle body rather than the upper side so that the lower end connection portion 28A connected to the traveling vehicle body 1 is positioned on the rear side of the vehicle body with respect to the rear step 37. Is bent. As a result, the fixed frame portion 28 can be received and supported by the upper end portion of the fixed frame portion 28 without forming the opening for inserting the fixed frame portion in the rear step 37. can do.

図1〜3、図5及び図6に示すように、走行車体1の後部には、その後部に備えた後部ステップ37及び左右の補助ステップ39などを後方から囲む状態となる平面視「U」字状に形成して、左右の拡張ステップ38における横方向の車体外側の後端部にわたって架設した丸パイプ材などからなる手摺り40を装備してある。手摺り40は、左右の補助ステップ39に対する横方向の車体外側に固定装備した左右の横手摺り部41の後部に、それらにわたる横長で施肥装置5の左右のホッパ17を後方から囲むことが可能な形状に形成した後手摺り部42を、左右の連結部材43を介して高さ調節可能に連結して構成してある。   As shown in FIGS. 1 to 3, 5, and 6, the rear portion of the traveling vehicle body 1 has a plan view “U” that surrounds the rear step 37 and the left and right auxiliary steps 39 provided in the rear portion from the rear. A handrail 40 made of a round pipe material or the like that is formed over the rear end of the lateral vehicle body in the lateral direction in the left and right expansion steps 38 is provided. The handrail 40 can surround the left and right hoppers 17 of the fertilizer application device 5 from behind at the rear of the left and right lateral handrail portions 41 fixedly mounted on the outer side of the vehicle body in the lateral direction with respect to the left and right auxiliary steps 39. The rear handrail portion 42 formed in a shape is connected via a left and right connecting member 43 so that the height can be adjusted.

左右の横手摺り部41は、左右のホッパ17の前端部横外方箇所で起立する起立部分41Aと、この起立部分41Aの下端から前下方の左右の拡張ステップ38との連結箇所に向けて延出する延出部分としての前下がり傾斜部分41Bとを有するように形成してある。   The left and right lateral rail portions 41 extend from the lower end of the standing portion 41A toward the connecting portion between the left and right extension steps 38 from the lower end of the standing portion 41A. It is formed so as to have a front-falling inclined portion 41B as an extending portion to be extended.

左右の連結部材43は、横手摺り部41と後手摺り部42との連結箇所における車体外側部分を覆う外側部材43Aと車体内側部分を覆う内側部材43Bとに左右に分割可能な2分割構造の鋳物製である。外側部材43A及び内側部材43Bには、横手摺り部41又は後手摺り部42の連結箇所に接合する凹部43Aa,43Baと、横手摺り部41の連結箇所に上下に一定間隔をあけて穿設した4つの係合孔41C又は後手摺り部42の連結箇所に一定間隔をあけて穿設した上下一対の係合孔42Aに係入する上下一対の係合突起43Ab,43Bbとを形成してある。外側部材43Aの前後中間部には、ボルト頭部埋設用の大径部を備えたボルト挿通用の貫通孔43Acを形成してある。内側部材43Bの前後中間部にはネジ孔43Bcを形成してある。   The left and right connecting members 43 are castings of a two-part structure that can be divided into left and right parts into an outer member 43A that covers the outer portion of the vehicle body and an inner member 43B that covers the inner portion of the vehicle body at the connecting portion of the side handrail portion 41 and the rear handrail portion 42. It is made. The outer member 43A and the inner member 43B are provided with recesses 43Aa and 43Ba that are joined to the connecting portion of the lateral handrail portion 41 or the rear handrail portion 42, and the connecting portion of the lateral handrail portion 41 with a certain vertical spacing 4 A pair of upper and lower engagement protrusions 43Ab and 43Bb are formed to be engaged with a pair of upper and lower engagement holes 42A formed at a predetermined interval in a connecting portion of one engagement hole 41C or the rear handrail portion 42. A through hole 43Ac for inserting a bolt having a large diameter portion for burying a bolt head is formed in the front and rear intermediate portion of the outer member 43A. A screw hole 43Bc is formed in the front and rear intermediate portion of the inner member 43B.

上記の構成から、手摺り40は、後手摺り部42の高さ位置を、後手摺り部42の横向き部分42Bが施肥装置5のホッパ上端よりも上方に位置して左右のホッパ17及び各上部ケース22の後方への開放揺動を許容するミッドマウント施肥仕様の高さ位置(図1及び図3参照)と、ミッドマウント施肥仕様での高さ位置よりも低い施肥無し仕様などの高さ位置(図5参照)とに、車体横外側からのボルト操作で容易に変更することができる。   From the above configuration, the handrail 40 has the height of the rear handrail portion 42 such that the lateral portion 42B of the rear handrail portion 42 is located above the upper end of the hopper of the fertilizer application device 5 and the left and right hoppers 17 and each upper case. The height position of the mid-mount fertilization specification that allows open swinging of the rear 22 (see FIGS. 1 and 3) and the height position of the no-fertilization specification lower than the height position in the mid-mount fertilization specification ( 5), it can be easily changed by a bolt operation from the lateral side of the vehicle body.

又、後手摺り部42の高さ変更を車体横外側からのボルト操作で容易に行えるようにしながらも、ボルト頭部が車体横外方に突出しない見栄えの良い状態にすることができる(図6参照)。   Further, the height of the rear handrail portion 42 can be easily changed by a bolt operation from the laterally outer side of the vehicle body, while the bolt head can be brought into a good-looking state that does not protrude laterally outward of the vehicle body (FIG. 6). reference).

図1、図2及び図7〜9に示すように、走行車体1の前部において、左右の乗降ステップ36に対する横方向の車体外側には、それぞれ、3枚の予備苗を育苗箱ごと載置する予備苗載置装置44を配備してある。左右の予備苗載置装置44は、走行車体1から延出した支持フレーム45の上端部に予備苗載置部46を高さ調節可能にボルト連結して構成してある。   As shown in FIGS. 1, 2, and 7 to 9, three spare seedlings are placed in the front portion of the traveling vehicle body 1 in the lateral direction with respect to the left and right entry / exit steps 36, respectively, along with the seedling boxes. A preliminary seedling placement device 44 is provided. The left and right spare seedling placement devices 44 are configured by connecting a preliminary seedling placement part 46 to an upper end portion of a support frame 45 extending from the traveling vehicle body 1 so as to be adjustable in height.

支持フレーム45は、前部フレーム7から延出した丸パイプ材からなる前支柱47、及び、前車軸ケース6に立設したブラケット48から延出した丸パイプ材からなる後支柱49、などを備えて構成してある。   The support frame 45 includes a front strut 47 made of a round pipe material extending from the front frame 7, a rear strut 49 made of a round pipe material extending from a bracket 48 erected on the front axle case 6, and the like. It is configured.

予備苗載置部46は、前後の支柱47,49の上端部にそれらにわたる状態で高さ調節可能にボルト連結した丸パイプ材などからなる固定フレーム50と、固定フレーム50の左右の前端部に左右一対で左右向きの連結軸51を介してそれらの連結軸51を支点にした相対揺動が可能となるように連結した丸パイプ材などからなる前可動フレーム52と、固定フレーム50の左右の後端部に左右一対で左右向きの連結軸53を介してそれらの連結軸53を支点にした相対揺動が可能となるように連結した丸パイプ材などからなる後可動フレーム54とを備えている。 The preliminary seedling placement part 46 is formed on a fixed frame 50 made of a round pipe material or the like which is bolt-connected to the upper end parts of the front and rear supports 47 and 49 so as to be adjustable in height, and on the left and right front end parts of the fixed frame 50. A left and right pair of left and right connecting shafts 51, a front movable frame 52 made of a round pipe material connected so as to be capable of relative swinging with the connecting shafts 51 as fulcrums, and left and right of the fixed frame 50 A rear movable frame 54 made of a round pipe material or the like is connected to the rear end portion via a pair of left and right connecting shafts 53 that are connected to the left and right sides so as to enable relative swinging using the connecting shafts 53 as fulcrums. Yes.

各フレーム50,52,54の上面には、予備苗の左右方向への移動を阻止しながら前後方向への移動を許容する前後方向視「U」字状に形成した樹脂製の予備苗台55をビス止めしてある。各予備苗台55には、予備苗の前後方向での移動を円滑にする6つのローラ56を装備してある。   On the upper surface of each frame 50, 52, 54, a resin-made preliminary seedling stand 55 formed in a “U” shape as viewed in the front-rear direction allowing movement in the front-rear direction while preventing the movement of the preliminary seedling in the left-right direction. Is screwed. Each preliminary seedling stand 55 is equipped with six rollers 56 that facilitate the movement of the preliminary seedling in the front-rear direction.

固定フレーム50の左右の前端部及び前可動フレーム52の左右の後端部は、それらを連結する左右の連結軸51の高さ位置が、固定フレーム50の予備苗台55に対する上方への前可動フレーム52の予備苗台55の折り重なりを許容する高さ位置となるように、固定フレーム50と前可動フレーム52とが前後に並ぶ状態において斜め上向きに延出する形状に屈曲形成してある。又、固定フレーム50の左右の後端部及び後可動フレーム54の左右の前端部は、それらを連結する左右の連結軸53の高さ位置が、固定フレーム50の予備苗台55の上方に折り重ねた前可動フレーム52の予備苗台55に対する上方への後可動フレーム54の予備苗台55の折り重なりを許容する高さ位置となるように、固定フレーム50と後可動フレーム54とが前後に並ぶ状態において斜め上向きに延出する形状に屈曲形成してある。   The left and right front end portions of the fixed frame 50 and the left and right rear end portions of the front movable frame 52 are configured such that the height positions of the left and right connecting shafts 51 that connect them are movable upward in the fixed frame 50 relative to the preliminary seedling stand 55. The fixed frame 50 and the front movable frame 52 are bent and formed so as to extend obliquely upward in a state in which the fixed frame 50 and the front movable frame 52 are arranged in the front-rear direction so as to be a height position that allows the reserve seedling stand 55 of the frame 52 to be folded. Further, the left and right rear ends of the fixed frame 50 and the left and right front ends of the rear movable frame 54 are folded above the spare seedling stand 55 of the fixed frame 50 so that the height positions of the left and right connecting shafts 53 connecting them are folded. The fixed frame 50 and the rear movable frame 54 are moved back and forth so as to be at a height position that allows the folding of the preliminary seedling stand 55 of the rear movable frame 54 upward relative to the preliminary seedling stand 55 of the stacked front movable frame 52. In a line-up state, it is bent and formed in a shape extending obliquely upward.

固定フレーム50は、その左右中央の前端部と後端部のそれぞれに、前可動フレーム52又は後可動フレーム54との当接で、前可動フレーム52又は後可動フレーム54を展開姿勢で受け止め支持する平面視「U」字状の受止具57,58を装備してある。そして、前可動フレーム52及び後可動フレーム54を展開姿勢で受け止め支持させた状態では、各フレーム50,52,54に備えた各予備苗台55の載置面が段差のない状態で前後に並ぶように構成してある。   The fixed frame 50 receives and supports the front movable frame 52 or the rear movable frame 54 in an unfolded posture by contacting the front movable frame 52 or the rear movable frame 54 with the front end and the rear end in the center of the left and right. Equipped with receiving devices 57 and 58 having a “U” shape in plan view. Then, in a state where the front movable frame 52 and the rear movable frame 54 are received and supported in the unfolded posture, the placement surfaces of the preliminary seedling stands 55 provided in the frames 50, 52, and 54 are lined up and down without any step. It is constituted as follows.

つまり、左右の予備苗載置装置44において、それらの予備苗載置部46は、前後の可動フレーム52,54をそれらが固定フレーム50の上方に折り重なる折り畳み姿勢に揺動操作することで、前後の可動フレーム52,54の予備苗台55を固定フレーム50の予備苗台55に対して上方に折り重ねた折り畳み状態とすることができ、又、前後の可動フレーム52,54をそれらが固定フレーム50の前後に位置する展開姿勢に揺動操作することで、各フレーム52,54,56の予備苗台55をそれらの載置面において段差が生じない状態で一直線上に前後に並べた展開状態とすることができるように構成してある。   In other words, in the left and right spare seedling placement devices 44, the spare seedling placement parts 46 are operated by swinging the front and rear movable frames 52 and 54 in a folding posture in which they are folded over the fixed frame 50. The spare seedling stand 55 of the movable frames 52, 54 can be folded upward with respect to the preliminary seedling stand 55 of the fixed frame 50, and the front and rear movable frames 52, 54 are fixed frames. By swinging to an unfolding posture positioned before and after 50, the unfolded state in which the preliminary seedling stands 55 of the respective frames 52, 54, and 56 are arranged in a straight line in a state where no step is generated on their placement surfaces. It is comprised so that.

左右の予備苗載置部46において、それらの展開状態での前可動フレーム52の前端と後可動フレーム54の後端には、展開状態の予備苗載置部46の前後両端からの予備苗の脱落を阻止するストッパ59,60を配備してある。そして、後可動フレーム54のストッパ60は、後可動フレーム54に備えた予備苗台55の後端に位置する退避位置と、その後方に位置する手摺り40の横手摺り部41における前上部側の起立部分41Aに近接する後方延出位置とにわたる出退移動が可能となるように、後可動フレーム54に前後摺動可能に備えた摺動部材61の後端に装備してある。   In the left and right spare seedling placement parts 46, the front end of the front movable frame 52 and the rear end of the rear movable frame 54 in the unfolded state are provided with spare seedlings from the front and rear ends of the standby seedling placement part 46 in the deployed state. Stoppers 59 and 60 for preventing the dropout are provided. The stopper 60 of the rear movable frame 54 is located on the front upper side of the side handrail portion 41 of the handrail 40 located at the rear end of the spare seedling stand 55 provided on the rear movable frame 54 and the rear handrail 40. The rear movable frame 54 is equipped at the rear end of the sliding member 61 that is slidable back and forth so that it can move back and forth across the rearward extension position close to the upright portion 41A.

左右の予備苗載置部46は、それらの展開状態では、それらの車体内側の前端での離間距離L1が搭乗ステップ35の左右幅W1と同じ又は略同じ長さになり、かつ、それらの車体内側の後端での離間距離L2が走行車体1の後端部に搭載した施肥装置5の左右幅W2と同じ又は略同じ長さになり、更に、それらの車体外側の後端での離間距離L3が苗植付装置4の左右幅W3と同じ又は略同じ長さになって、平面視においては、搭乗ステップ35及び左右の乗降ステップ36とは重なり合わずに、左右の拡張ステップ30における車体横方向の外側端部と重なり合う先窄まり姿勢で、それらの後端が手摺り40の左右の前端に近接した状態となり、又、前後方向視においては、それらが手摺り40と重なり合う状態となるように構成してある。   In the unfolded state, the left and right spare seedling placement portions 46 have the same or substantially the same distance L1 as the left and right width W1 of the boarding step 35 at the front end inside the vehicle body. The separation distance L2 at the inner rear end is the same as or substantially the same as the left and right width W2 of the fertilizer application device 5 mounted at the rear end of the traveling vehicle body 1, and further, the separation distance at the rear end outside the vehicle body L3 becomes the same or substantially the same length as the left and right width W3 of the seedling planting device 4, and in plan view, the boarding step 35 and the left and right getting on / off steps 36 do not overlap, and the vehicle body in the left and right extending step 30 In a constricted posture that overlaps with the lateral outer end, the rear ends thereof are in close proximity to the left and right front ends of the handrail 40, and in the front-rear direction, they overlap with the handrail 40. Configured as .

そして、それらの後端のストッパ60が後方延出位置に位置するように後可動フレーム54の摺動部材61を後方に延出させた状態では、それらの後部が手摺り40の横手摺り部41における前下部側の前下がり傾斜部分41Bと平面視で重なり合って、それらの後端が横手摺り部41における前上部側の起立部分41Aに近接するように構成してある。   In the state where the sliding member 61 of the rear movable frame 54 is extended rearward so that the stopper 60 at the rear end thereof is positioned at the rearward extension position, the rear portion thereof is the horizontal handrail portion 41 of the handrail 40. Are overlapped with each other in a plan view so that their rear ends are close to the upright portion 41A on the front upper side of the lateral handrail portion 41.

上記の構成から、左右の乗降ステップ36に対する横方向の車体外側に配備した左右の予備苗載置装置44は、それらの予備苗載置部46を折り畳み状態から展開状態に切り換えた植え付け作業中においては、田植機全体としての左右幅を大きくすることなく、搭乗ステップ上の領域、左右の乗降ステップ上の領域、及び、左右の拡張ステップ上の領域のうちの車体内側領域のそれぞれを予備苗供給用の作業領域として確保しながら、左右の予備苗載置部46を走行車体1の前方箇所から車体後部の手摺り40にわたる前後長さの長い状態にすることができる。   From the above configuration, the left and right auxiliary seedling placement devices 44 disposed on the outer side of the vehicle body in the lateral direction with respect to the left and right entry / exit steps 36 are during planting operations in which the preliminary seedling placement units 46 are switched from the folded state to the expanded state. Supply spare seedlings for each of the area on the boarding step, the area on the left and right boarding / alighting steps, and the area on the left and right expansion steps without increasing the horizontal width of the whole rice transplanter. The left and right spare seedling placement parts 46 can be in a long front-rear length extending from the front part of the traveling vehicle body 1 to the handrail 40 at the rear part of the vehicle body, while ensuring a working area for the vehicle.

これにより、左右の予備苗載置部46に載置した各予備苗を苗載台12に供給する場合には、予備苗載置部46に沿った予備苗供給用の作業領域での作業で、各予備苗を、予備苗載置部46に載置した状態のまま、車体前側から車体後方の苗載台12の近くまで簡単かつ円滑に搬送することができ、その搬送後は、後部ステップ37又は左右の補助ステップ39を踏み台として利用しながら、又、手摺り40を使用しながら、苗載台12に簡単に供給することができる。   As a result, when each of the spare seedlings placed on the left and right spare seedling placement units 46 is supplied to the seedling placement stand 12, the work in the work area for supplying the spare seedlings along the spare seedling placement unit 46 is performed. Each of the seedlings can be transported easily and smoothly from the front side of the vehicle body to the vicinity of the seedling mounting table 12 at the rear of the vehicle body while being placed on the spare seedling placement unit 46. 37 or the left and right auxiliary steps 39 can be easily supplied to the seedling stage 12 while using the handrail 40.

又、左右の予備苗載置部46を展開状態とした植え付け作業中に左右のホッパ17に対して肥料を補給する場合において、左右の予備苗載置部46が邪魔になる虞を防止することができる。   In addition, when the fertilizer is supplied to the left and right hoppers 17 during the planting operation in which the left and right spare seedling placement units 46 are in the expanded state, the left and right preliminary seedling placement units 46 may be prevented from becoming an obstacle. Can do.

図1に示すように、左右の各予備苗載置装置44における前側の受止具57は、予備苗載置部46の折り畳み状態においては、予備苗載置部46から前方に延出することで、走行車体1の前端部からの乗降を行い易くする取っ手として利用することができる。又、後側の受止具58は、予備苗載置部46の折り畳み状態においては、予備苗載置部46から後方に延出することで、走行車体1の横側部からの乗降を行い易くする取っ手として利用することができる。 As shown in FIG. 1, the front receiving device 57 in each of the left and right spare seedling placement devices 44 extends forward from the preliminary seedling placement unit 46 when the preliminary seedling placement unit 46 is folded. Thus, it can be used as a handle that facilitates getting on and off from the front end of the traveling vehicle body 1. In addition, when the spare seedling placement unit 46 is in the folded state, the rear receiving device 58 extends from the spare seedling placement unit 46 to the rear side, thereby getting on and off from the lateral side of the traveling vehicle body 1. It can be used as a handle to make it easier.

図7〜9に示すように、固定フレーム50の左右の前端部及び前可動フレーム52の左右の後端部には、前可動フレーム52を、その上面の予備苗台55に予備苗を載置した状態で前可動フレーム52の車体前方への張り出し量を減少させることができる前上がり傾斜姿勢での固定保持を可能にする貫通孔50A,52Aを穿設してあり、これらの貫通孔50A,52Aに連結ピン62を挿通して抜け止めすることで、前可動フレーム52を前上がり傾斜姿勢で固定保持することができる。   As shown in FIGS. 7 to 9, the front movable frame 52 is placed on the left and right front ends of the fixed frame 50 and the left and right rear ends of the front movable frame 52. In this state, through holes 50A and 52A that allow the front movable frame 52 to be fixed and held in a forwardly inclined posture that can reduce the amount of protrusion of the front movable frame 52 to the front of the vehicle body are formed. The front movable frame 52 can be fixed and held in a forwardly inclined posture by inserting the connecting pin 62 into 52A and preventing it from coming off.

固定フレーム50の左右の前端部及び後可動フレーム54の左右の後端部には、後可動フレーム54を、その上面の予備苗台55に予備苗を載置した状態で後可動フレーム54の搭乗運転部31への張り出し量を減少させることができる後上がり傾斜姿勢での固定保持を可能にする貫通孔50B,54Aを穿設してあり、これらの貫通孔50B,54Aに連結ピン63を挿通して抜け止めすることで、後可動フレーム54を後上がり傾斜姿勢で固定保持することができる。   Boarding of the rear movable frame 54 in a state where the rear movable frame 54 is placed on the left and right rear ends of the fixed frame 50 and the left and right rear ends of the rear movable frame 54 and the spare seedling is placed on the spare seedling stand 55 on the upper surface thereof. Through-holes 50B and 54A that can be fixed and held in a rearwardly rising and inclined posture that can reduce the amount of protrusion to the operating portion 31 are formed, and the connecting pin 63 is inserted into these through-holes 50B and 54A. Thus, the rear movable frame 54 can be fixed and held in a rearwardly rising and inclined posture.

つまり、固定フレーム50における前側の左右の貫通孔50Aと前可動フレーム52の左右の貫通孔52Aと左右の連結ピン62により、前可動フレーム52とともにそれに備えた予備苗台55を、予備苗の載置が可能な状態でありながら、その前方への張り出し量を減少させることができる前上がり傾斜姿勢に固定保持する固定手段64を構成してある。   That is, the front seedling stand 55 provided for the front movable frame 52 and the left and right through holes 52A of the front movable frame 52 and the left and right connecting pins 62 are mounted on the fixed frame 50 together with the front seedling stand. The fixing means 64 is configured to be fixed and held in a forwardly rising and inclined posture capable of reducing the amount of protrusion to the front while being in a state where it can be placed.

又、固定フレーム50における後側の左右の貫通孔50Bと後可動フレーム54の左右の貫通孔54Aと左右の連結ピン63により、後可動フレーム54とともにそれに備えた予備苗台55を、予備苗の載置が可能な状態でありながら、その後方への張り出し量を減少させることができる後上がり傾斜姿勢に固定保持する固定手段65を構成してある。   Further, the rear movable frame 54 and the spare seedling stand 55 provided for the rear movable frame 54 are provided by the rear left and right through holes 50B of the fixed frame 50, the left and right through holes 54A of the rear movable frame 54, and the left and right connecting pins 63. The fixing means 65 is configured to fix and hold the vehicle in a rear-upward inclined posture capable of reducing the amount of protrusion to the rear while it can be placed.

上記の構成から、左右の各予備苗載置部46の全体にそれぞれ3枚の予備苗を載置した状態において走行車体1の前端部から乗降する場合には、固定手段64により、前可動フレーム52とその上面の予備苗台55とを前上がり傾斜姿勢で固定保持することで、前可動フレーム52の予備苗台55に予備苗を載置した状態であっても、予備苗を前可動フレーム52の予備苗台55から脱落させることなく、ボンネット34と左右の予備苗載置部46との間及び左右の予備苗載置部46の間に形成される車体前側の乗降空間を広くすることができ、走行車体1の前端部からの乗降を行い易くすることができる。   From the above configuration, when the three preliminary seedlings are placed on the entire left and right preliminary seedling placement parts 46, when the boarding / exiting is performed from the front end of the traveling vehicle body 1, the fixing means 64 causes the front movable frame to be 52 and the preliminary seedling stand 55 on the upper surface thereof are fixedly held in an upwardly inclined posture, so that the preliminary seedling can be moved to the front movable frame even when the preliminary seedling is placed on the preliminary seedling stand 55 of the front movable frame 52. 52. A vehicle front-side boarding / alighting space formed between the bonnet 34 and the left and right spare seedling placement portions 46 and between the left and right spare seedling placement portions 46 without being dropped off from the 52 spare seedling stands 55. It is possible to easily get on and off from the front end of the traveling vehicle body 1.

又、左右の各予備苗載置部46の全体にそれぞれ3枚の予備苗を載置した状態において走行車体1の横側部から乗降する場合には、固定手段65により、後可動フレーム54とその上面の予備苗台55とを後上がり傾斜姿勢で固定保持することで、後可動フレーム54の予備苗台55に予備苗を載置した状態であっても、予備苗を前可動フレーム52の予備苗台55から脱落させることなく、左右の補助ステップ39と左右の予備苗載置部46との間に形成される車体横側の乗降空間を広くすることができ、走行車体1の横側部からの乗降を行い易くすることができる。   Further, when getting on and off from the lateral side of the traveling vehicle body 1 with three spare seedlings placed on the entire left and right spare seedling placement parts 46, the fixing means 65 and the rear movable frame 54 The preliminary seedling stand 55 on the upper surface is fixed and held in a rearward inclined posture, so that even if the preliminary seedling is placed on the preliminary seedling stand 55 of the rear movable frame 54, the preliminary seedling is attached to the front movable frame 52. Without falling off from the spare seedling stand 55, the vehicle body lateral entry / exit space formed between the left and right auxiliary steps 39 and the left and right spare seedling placement portions 46 can be widened. It is possible to easily get on and off from the section.

更に、圃場際に電柱などが立設された圃場で植え付け作業を行う場合には、固定手段64により、前可動フレーム52とその上面の予備苗台55とを前上がり傾斜姿勢で固定保持することで、前可動フレーム52の予備苗台55に予備苗を載置した状態であっても、予備苗を前可動フレーム52の予備苗台55から脱落させることなく、左右の各予備苗載置部46の車体前方への張り出し量を減少させることができ、左右の予備苗載置部46を展開状態とする植え付け作業での畦際旋回時に、左右の予備苗載置部46が圃場際の電柱などに接触する不都合の発生を抑制することができる。   Further, when planting work is performed in a field in which a power pole or the like is erected on the field, the front movable frame 52 and the spare seedling stand 55 on the upper surface thereof are fixedly held in a forwardly inclined posture by the fixing means 64. Thus, even when the spare seedling is placed on the spare seedling stand 55 of the front movable frame 52, each of the left and right spare seedling placement units does not fall off from the preliminary seedling stand 55 of the front movable frame 52. 46 can be reduced in the forward direction of the vehicle body, and the left and right spare seedling placement parts 46 can be connected to the power poles in the field during the turning operation in the planting operation in which the left and right spare seedling placement parts 46 are deployed. It is possible to suppress the occurrence of inconvenience in contact with the like.

〔別実施形態〕     [Another embodiment]

〔1〕図10に示すように、乗用田植機としては、左右の乗降ステップ36に対する横方向の車体外側にそれぞれ配備した予備苗載置装置44の予備苗台55の下方に、ペースト状の肥料を貯留する肥料タンク66を配備することなどでペースト施肥仕様に構成したものであってもよい。そして、この構成では、肥料タンク66の前端上部に備えた補給口66Aから予備タンク67の肥料を補給する場合に、その上方の各予備苗台55に予備苗を載置した状態であったとしても、固定手段64により、前可動フレーム52とその上面の予備苗台55とを前上がり傾斜姿勢で固定保持することで、肥料タンク66と前可動フレーム52及び予備苗台55との間に肥料補給用の空間を確保することができ、予備タンク67から肥料タンク66への肥料補給を簡単に行うことができる。 [1] As shown in FIG. 10, as a riding rice transplanter, pasty fertilizers are provided below the preliminary seedling stand 55 of the preliminary seedling placement device 44 respectively arranged on the outer side of the vehicle body in the lateral direction with respect to the left and right getting-on / off steps 36. It may be configured to paste fertilization specifications by, for example, providing a fertilizer tank 66 that stores the fertilizer. In this configuration, when the fertilizer in the spare tank 67 is replenished from the replenishing port 66A provided at the upper front end of the fertilizer tank 66, it is assumed that the spare seedling is placed on each of the spare seedling stands 55 thereabove. In addition, the fixing means 64 fixes and holds the front movable frame 52 and the preliminary seedling table 55 on the upper surface thereof in an upwardly inclined posture, so that the fertilizer is provided between the fertilizer tank 66 and the front movable frame 52 and the preliminary seedling table 55. A space for replenishment can be ensured, and the replenishment of fertilizer from the reserve tank 67 to the fertilizer tank 66 can be performed easily.

〔2〕左右の予備苗載置装置44としては、前可動フレーム52とその上面の予備苗台55とを、予備苗を載置した状態で車体前方への張り出し量を減少させることができる前上がり傾斜姿勢で固定保持する固定手段64のみを備えたもの、又は、後可動フレーム54とその上面の予備苗台55とを、予備苗を載置した状態で後方の搭乗運転部31への張り出し量を減少させることができる後上がり傾斜姿勢で固定保持する固定手段65のみを備えたものであってもよい。 [2] As the left and right spare seedling placement devices 44, the front movable frame 52 and the spare seedling stand 55 on the upper surface of the front movable frame 52 can be reduced before the amount of protrusion to the front of the vehicle body can be reduced with the spare seedlings placed. The one provided only with the fixing means 64 which is fixed and held in the rising and inclined posture, or the rear movable frame 54 and the spare seedling stand 55 on the upper surface thereof are projected to the boarding operation unit 31 at the rear with the spare seedling placed thereon. It may be provided with only the fixing means 65 for fixing and holding in a rearward rising inclination posture capable of reducing the amount.

〔3〕左右の予備苗載置装置44としては、予備苗載置部46を、支持フレーム45の上端部に高さ調節可能にボルト連結した固定フレーム50、固定フレーム50の左右の前端部に左右一対で左右向きの連結軸51を介してそれらの連結軸51を支点にした相対揺動が可能となるように連結した前可動フレーム52、及び、それらの上面にビス止めした予備苗台55などによって、折り畳み状態と展開状態とに切り換え可能で、展開状態において2枚の予備苗を育苗箱ごと載置するように構成したものにおいて、固定手段64により、前可動フレーム52とその上面の予備苗台55とを、予備苗を載置した状態で車体前方への張り出し量を減少させることができる前上がり傾斜姿勢で固定保持できるように構成したものであってもよい。 [3] As the left and right spare seedling placement devices 44, the preliminary seedling placement part 46 is bolted to the upper end part of the support frame 45 so as to be adjustable in height, and the left and right front end parts of the fixed frame 50 are connected to each other. A front movable frame 52 connected so as to be capable of relative swinging with the connecting shaft 51 as a fulcrum through a pair of left and right connecting shafts 51 and a spare seedling stand 55 screwed to the upper surface thereof. Can be switched between the folded state and the unfolded state, and the two seedlings are placed together with the seedling box in the unfolded state. The seedling stand 55 may be configured so as to be fixedly held in a forwardly rising and tilting posture in which the amount of protrusion to the front of the vehicle body can be reduced in a state where the spare seedling is placed.

〔4〕左右の予備苗載置装置44としては、予備苗載置部46を、支持フレーム45の上端部に高さ調節可能にボルト連結した固定フレーム50、固定フレーム50の左右の後端部に左右一対で左右向きの連結軸53を介してそれらの連結軸53を支点にした相対揺動が可能となるように連結した後可動フレーム54、及び、それらの上面にビス止めした予備苗台55などによって、折り畳み状態と展開状態とに切り換え可能で、展開状態において2枚の予備苗を育苗箱ごと載置するように構成したものにおいて、固定手段65により、後可動フレーム54とその上面の予備苗台55とを、予備苗を載置した状態で後方の搭乗運転部31への張り出し量を減少させることができる後上がり傾斜姿勢で固定保持できるように構成したものであってもよい。 [4] As the left and right spare seedling placement devices 44, a fixed frame 50 in which a spare seedling placement part 46 is bolted to the upper end of the support frame 45 so as to be adjustable in height, and the left and right rear ends of the fixed frame 50 A pair of left and right paired left and right connecting shafts 53 are connected so as to enable relative swinging with the connecting shafts 53 as fulcrums, and then a movable frame 54 and a preliminary seedling stand screwed to the upper surface thereof. 55, which can be switched between the folded state and the unfolded state, and in which the two seedlings are placed together with the seedling box in the unfolded state. The spare seedling stand 55 is configured so that it can be fixed and held in a rearward rising inclination posture that can reduce the amount of overhang to the boarding operation section 31 in a state where the spare seedling is placed. It may be.

〔5〕図11及び図12に示すように、左右の予備苗載置装置44としては、支持フレーム45の上端部に高さ調節可能にボルト連結した支持部材68、支持部材68の左右両端部に左右一対で左右向きの連結軸69を介してそれらの連結軸69を支点にした相対揺動が可能となるように連結した前可動フレーム52と後可動フレーム54、及び、それら前後の可動フレーム52,54の上面にビス止めした予備苗台55などによって、前可動フレーム52に後可動フレーム54を折り重ねた前折り畳み状態〔図12の(a)参照〕と、後可動フレーム54に前可動フレーム52を折り重ねた後折り畳み状態〔図12の(b)参照〕と、展開状態〔図12の(c)参照〕とに切り換え可能で、展開状態において2枚の予備苗を育苗箱ごと載置するように構成したものにおいて、固定手段64により、前可動フレーム52とその上面の予備苗台55とを、予備苗を載置した状態で車体前方への張り出し量を減少させることができる前上がり傾斜姿勢〔図12の(d)参照〕で固定保持することができ、かつ、固定手段65により、後可動フレーム54とその上面の予備苗台55とを、予備苗を載置した状態で後方の搭乗運転部31への張り出し量を減少させることができる後上がり傾斜姿勢〔図12の(d)参照〕で固定保持できるように構成したものであってもよい。 [5] As shown in FIGS. 11 and 12, the left and right spare seedling placement devices 44 include a support member 68 bolted to the upper end portion of the support frame 45 so as to be adjustable in height, and both left and right end portions of the support member 68. The front movable frame 52 and the rear movable frame 54 connected to each other through a pair of left and right connecting shafts 69 so as to enable relative swinging with the connecting shafts 69 as fulcrums, and the front and rear movable frames. A front folded state in which the rear movable frame 54 is folded on the front movable frame 52 (see FIG. 12A) by a spare seedling stand 55 or the like fastened with screws on the upper surfaces of 52 and 54, and a front movable frame 54. After the frame 52 is folded, the frame 52 can be switched between a folded state (see FIG. 12B) and an unfolded state (see FIG. 12C). Place In such a configuration, the fixing means 64 allows the front movable frame 52 and the preliminary seedling stand 55 on the upper surface thereof to rise forward so that the amount of protrusion to the front of the vehicle body can be reduced with the preliminary seedling placed. It can be fixedly held in an inclined posture (see FIG. 12 (d)), and the rear movable frame 54 and the spare seedling stand 55 on the upper surface thereof are moved backward by the fixing means 65 in a state where the spare seedling is placed. It may be configured to be able to be fixed and held in a rearward rising inclination posture (see FIG. 12 (d)) that can reduce the amount of protrusion to the boarding operation unit 31.

尚、図11及び図12に示す符号70は、前可動フレーム52及び後可動フレーム54を展開姿勢で受け止め支持する受止具である。そして、この構成では、前側の固定手段64を、前可動フレーム52に穿設した貫通孔52Aと、支持部材68の前側に穿設した貫通孔68Aと、それらに挿通する連結ピン62とで構成してある。又、後側の固定手段65を、後可動フレーム54に穿設した貫通孔54Aと、支持部材68の後側に穿設した貫通孔68Bと、それらに挿通する連結ピン63とで構成してある。   11 and 12 is a receiving tool for receiving and supporting the front movable frame 52 and the rear movable frame 54 in the deployed posture. In this configuration, the front fixing means 64 includes a through hole 52A formed in the front movable frame 52, a through hole 68A formed in the front side of the support member 68, and a connecting pin 62 inserted through them. It is. The rear fixing means 65 includes a through hole 54A formed in the rear movable frame 54, a through hole 68B formed in the rear side of the support member 68, and a connecting pin 63 inserted therethrough. is there.

〔6〕左右の予備苗載置装置44としては、それらにおける車体内側の横側部のみに固定手段64,65を装備するように構成して、搭乗した運転者による固定手段64,65の操作を行い易くしたものであってもよい。 [6] The left and right auxiliary seedling placement devices 44 are configured to be equipped with fixing means 64 and 65 only on the lateral side inside the vehicle body of them, and the operation of the fixing means 64 and 65 by the boarded driver. It may be one that makes it easier to perform.

〔7〕乗用田植機としては、搭乗ステップ35及び乗降ステップ36に対する横方向の車体外側に拡張ステップ38を配備していないものであってもよい。そして、このような乗用田植機においては、左右の予備苗載置装置44を、それらの展開状態では、各予備苗台55の車体横方向内側端縁が、前側ほど車体横方向内側に位置する状態で傾斜する乗降ステップ36の車体横方向外側端縁と平面視で略一致する状態となるように構成して、走行車体1の左右で一直線上に前後に並ぶ複数の予備苗台55の姿勢が先窄まり姿勢となるように構成することが考えられる。 [7] The riding rice transplanter may not be provided with the expansion step 38 outside the vehicle body in the lateral direction with respect to the boarding step 35 and the boarding / exiting step 36. In such a riding rice transplanter, when the left and right spare seedling placement devices 44 are in their unfolded state, the vehicle body laterally inner edge of each spare seedling stand 55 is located on the vehicle laterally inner side toward the front side. The postures of the plurality of preliminary seedling stands 55 arranged in a straight line on the left and right of the traveling vehicle body 1 so as to be substantially coincident with a laterally outer edge of the vehicle body lateral direction of the boarding / alighting step 36 inclined in a state. It is conceivable to configure such that the posture becomes a constricted posture.

〔8〕固定手段64,65の構成は種々の変更が可能であり、例えば、固定ピンとフック金具で構成したものなどであってもよい。 [8] The configuration of the fixing means 64 and 65 can be variously modified. For example, a configuration including a fixing pin and a hook metal fitting may be used.

本発明に係る乗用田植機の予備苗載置構造は、走行車体の前端部からの乗降を可能にする左右の乗降ステップに対する横方向の車体外側にそれぞれ予備苗載置装置を備え、予備苗載置装置を、複数の予備苗台を上下に折り重ねた折り畳み状態と一直線上に前後に並べた展開状態とに切り換え可能に構成した粒状施肥仕様やペースト施肥仕様あるいは施肥無し仕様などの乗用田植機に適用することができる。   The preliminary seedling placement structure for a riding rice transplanter according to the present invention comprises a spare seedling placement device on the outside of the vehicle body in the lateral direction with respect to the left and right getting-on / off steps that enables getting on and off from the front end of the traveling vehicle body. Passenger rice transplanters such as granular fertilizer specifications, paste fertilizer specifications, or no fertilizer specifications, which can be switched between a folding state in which a plurality of preliminary seedling beds are folded up and down and an unfolded state where they are arranged in a straight line Can be applied to.

1 走行車体
3 リンク機構
4 苗植付装置
36 乗降ステップ
37 苗補給用のステップ(後部ステップ)
39 苗補給用のステップ(補助ステップ)
40 手摺り
41B 延出部分
44 予備苗載置装置
55 予備苗台
64 固定手段
65 固定手段
57 受止具
58 受止具
DESCRIPTION OF SYMBOLS 1 Running vehicle body 3 Link mechanism 4 Seedling planting device 36 Getting on / off step 37 Step for seedling replenishment (rear step)
39 Steps for supplementing seedlings (auxiliary steps)
40 Handrail 41B Extension 44 Preliminary seedling placement device 55 Preliminary seedling stand 64 Fixing means 65 Fixing means
57 Stopper
58 Stopper

Claims (5)

走行車体の後部にリンク機構を介して苗植付装置を連結し、前記走行車体の前端部からの乗降を可能にする左右の乗降ステップに対する横方向の車体外側にそれぞれ予備苗載置装置を備え、前記予備苗載置装置を、複数の予備苗台を上下に折り重ねた折り畳み状態と一直線上に前後に並べた展開状態とに切り換え可能に構成した乗用田植機の予備苗載置構造において、
前記予備苗載置装置に、少なくとも、前記展開状態で最前に位置する予備苗台を予備苗の載置が可能な前上がり傾斜姿勢で固定保持する固定手段と、前記展開状態で最後に位置する予備苗台を予備苗の載置が可能な後上がり傾斜姿勢で固定保持する固定手段とのいずれか一つを装備するとともに、前記展開状態では、前記最前の予備苗台又は前記最後の予備苗台の下方に位置して前記最前の予備苗台又は前記最後の予備苗台を受け止め支持し、かつ、前記折り畳み状態では、前記予備苗載置装置から前方又は後方に延出して乗降用の取っ手として機能する受止具を装備してある乗用田植機の予備苗載置構造。
A seedling planting device is connected to the rear portion of the traveling vehicle body via a link mechanism, and a preliminary seedling placement device is provided on the outer side of the vehicle body in the lateral direction with respect to the left and right getting-on / off steps that enables getting on and off from the front end of the traveling vehicle body. In the preliminary seedling placement structure of the riding rice transplanter, the spare seedling placement device is configured to be switchable between a folded state in which a plurality of preliminary seedling stands are folded up and down and an unfolded state in which the spare seedling stands are arranged in a straight line.
Fixing means for fixing and holding at least the preliminary seedling stand positioned in the foremost position in the unfolded state in a forwardly inclined posture capable of placing the pre-seeding seedling, and finally positioned in the unfolded state in the preliminary seedling placing device The preliminary seedling stand is equipped with any one of fixing means for fixing and holding the preliminary seedling in a rearwardly inclined posture capable of placing the preliminary seedling, and in the unfolded state, the foremost preliminary seedling stand or the last preliminary seedling A handle for boarding / exiting that extends forward or backward from the preliminary seedling placement device in the folded state in the folded state, receiving and supporting the foremost preliminary seedling base or the last preliminary seedling base. Preliminary seedling placement structure for a riding rice transplanter equipped with a receiver functioning as
前記固定手段を、前記予備苗載置装置における車体内側の横側部に装備してある請求項1に記載の乗用田植機の予備苗載置構造。   The preliminary seedling placement structure for a riding rice transplanter according to claim 1, wherein the fixing means is provided on a lateral side portion on the inner side of a vehicle body in the preliminary seedling placement device. 前記走行車体の後部に、その後部に備えた苗補給用のステップを後方から囲む状態となる平面視U字状に形成した手摺りを備え、
前記展開状態では、最後に位置する予備苗台の後端が前記手摺りの左右両端部に近接するように構成してある請求項1又は2に記載の乗用田植機の予備苗載置構造。
At the rear of the traveling vehicle body is provided with a handrail formed in a U-shape in plan view that surrounds the seedling replenishment step provided at the rear from the rear,
The spare seedling placement structure for a riding rice transplanter according to claim 1 or 2, wherein in the unfolded state, the rear end of the lastly-prepared seedling stand is configured to approach both left and right ends of the handrail.
前記手摺りの左右両端部に、それらの前下方に設けた車体側との連結箇所に向けて延出する延出部分を備え、
前記展開状態では、最後に位置する予備苗台が前記延出部分と平面視で重なり合うように構成してある請求項3に記載の乗用田植機の予備苗載置構造。
The left and right end portions of the handrail are provided with extending portions that extend toward the connecting portion with the vehicle body side provided at the front lower side thereof,
The preliminary seedling placement structure for a riding rice transplanter according to claim 3, wherein in the unfolded state, the last seedling stand positioned so as to overlap the extended portion in plan view.
前記展開状態では、前記複数の予備苗台の車体横方向内側端縁が、前側ほど車体横方向内側に位置する状態で傾斜する前記乗降ステップの車体横方向外側端縁と平面視で略一致する状態となるように、前記予備苗載置装置を構成して、前記走行車体の左右で一直線上に前後に並ぶ前記複数の予備苗台の姿勢が先窄まり姿勢となるように構成してある請求項1〜4のいずれか一つに記載の乗用田植機の予備苗載置構造。   In the unfolded state, the vehicle body lateral inner edges of the plurality of preliminary seedling stands substantially coincide with the vehicle lateral lateral outer edges of the getting-on / off step inclined in a state of being located on the vehicle lateral inner side toward the front. The preliminary seedling placement device is configured so as to be in a state, and the postures of the plurality of preliminary seedling stands arranged in a straight line on the left and right of the traveling vehicle body are configured to be tapered. The preliminary seedling placement structure of the riding rice transplanter according to any one of claims 1 to 4.
JP2011216896A 2011-09-30 2011-09-30 Preliminary seedling placement structure for riding rice transplanter Active JP5722741B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2011216896A JP5722741B2 (en) 2011-09-30 2011-09-30 Preliminary seedling placement structure for riding rice transplanter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2011216896A JP5722741B2 (en) 2011-09-30 2011-09-30 Preliminary seedling placement structure for riding rice transplanter

Publications (2)

Publication Number Publication Date
JP2013074841A JP2013074841A (en) 2013-04-25
JP5722741B2 true JP5722741B2 (en) 2015-05-27

Family

ID=48478866

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2011216896A Active JP5722741B2 (en) 2011-09-30 2011-09-30 Preliminary seedling placement structure for riding rice transplanter

Country Status (1)

Country Link
JP (1) JP5722741B2 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6358828B2 (en) * 2014-03-28 2018-07-18 株式会社クボタ Ride type rice transplanter
KR20240056781A (en) 2015-12-25 2024-04-30 가부시끼 가이샤 구보다 Work vehicle
JP6576237B2 (en) * 2015-12-25 2019-09-18 株式会社クボタ Work vehicle
JP6858810B2 (en) * 2019-06-25 2021-04-14 株式会社クボタ Riding rice transplanter

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6138410Y2 (en) * 1979-05-02 1986-11-06
JP4512527B2 (en) * 2005-07-13 2010-07-28 三菱農機株式会社 Transplanter
JP4919203B2 (en) * 2006-08-14 2012-04-18 三菱農機株式会社 Transplanter
JP2008278765A (en) * 2007-05-08 2008-11-20 Kubota Corp Machine body structure of riding-type rice transplanter
JP5493653B2 (en) * 2009-09-29 2014-05-14 井関農機株式会社 Seedling planting machine
JP5357722B2 (en) * 2009-12-01 2013-12-04 株式会社クボタ Ride type rice transplanter

Also Published As

Publication number Publication date
JP2013074841A (en) 2013-04-25

Similar Documents

Publication Publication Date Title
JP5722741B2 (en) Preliminary seedling placement structure for riding rice transplanter
JP2009106178A (en) Seedling transplanter
JP2019000070A (en) Work vehicle
JP2007236256A (en) Riding type transplanter
JP4537171B2 (en) Transplanter
JP4563411B2 (en) Transplanter
JP6406826B2 (en) Paddy field machine
JP2008278765A (en) Machine body structure of riding-type rice transplanter
JP2007037440A (en) Riding type rice transplanter with fertilizer applicator
JP2007020428A (en) Transplanter
JP2016178868A (en) Whole culm input type combine-harvester
JP6261403B2 (en) Paddy field machine
JP2010094061A (en) Transplanter
JP2006087361A (en) Transplanter
JP2005073515A (en) Sulky transplanter
JP5497581B2 (en) Transplanter
JP6290661B2 (en) Transplanter
JP5731287B2 (en) Ride type rice transplanter
JP5678811B2 (en) Seedling transplanter
JP2009131283A (en) Transplanter
JP2009000018A (en) Transplanter
JP7388415B2 (en) work vehicle
JP2005073516A (en) Sulky transplanter
JP2011062118A (en) Riding type agricultural working machine
JP5703633B2 (en) Seedling transplanter

Legal Events

Date Code Title Description
A621 Written request for application examination

Free format text: JAPANESE INTERMEDIATE CODE: A621

Effective date: 20130926

A977 Report on retrieval

Free format text: JAPANESE INTERMEDIATE CODE: A971007

Effective date: 20140313

A131 Notification of reasons for refusal

Free format text: JAPANESE INTERMEDIATE CODE: A131

Effective date: 20140403

A521 Written amendment

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20140530

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: 20150226

A61 First payment of annual fees (during grant procedure)

Free format text: JAPANESE INTERMEDIATE CODE: A61

Effective date: 20150326

R150 Certificate of patent or registration of utility model

Ref document number: 5722741

Country of ref document: JP

Free format text: JAPANESE INTERMEDIATE CODE: R150