JP2015043701A

JP2015043701A - Seedling transplanting machine

Info

Publication number: JP2015043701A
Application number: JP2013175448A
Authority: JP
Inventors: 大介今泉; Daisuke Imaizumi; 孝行藤代; Takayuki Fujishiro; 拓人澤木; Takuto Sawaki
Original assignee: Iseki and Co Ltd; Iseki Agricultural Machinery Mfg Co Ltd
Current assignee: Iseki and Co Ltd; Iseki Agricultural Machinery Mfg Co Ltd
Priority date: 2013-08-27
Filing date: 2013-08-27
Publication date: 2015-03-12
Anticipated expiration: 2033-08-27
Also published as: JP5974996B2

Abstract

PROBLEM TO BE SOLVED: To provide a seedling transplanting machine that facilitates loading work of fertilizer even if the amount of the fertilizer is large, has high efficiency of working and comprises a spare seedling frame.SOLUTION: A seedling transplanting machine is provided with spare seedling frames 38L, 38R having a spare seedling platform (38a, 38b, 38c) for loading spare seedlings provided at front right and left part of a traveling vehicle body 2 for traveling in a field. The seedling transplanting machine is also provided with a loading unit 66 for loading and conveying work materials including a fertilizer container, a plastic tank with fuel and a seedling box provided in the spare seedling frame 38L; the spare seedling frames 38L, 38R; and the loading unit 66, which are turnably provided in the traveling vehicle body 2, independently respectively. The work materials such as fertilizer containers can be loaded on the seedling transplanting machine by using the loading unit 66, so that the labor of workers required for the work of loading the work materials being heavy loads can be reduced.

Description

この発明は、走行装置を有する機体に予備苗枠を備えた苗移植機に関する。 The present invention relates to a seedling transplanting machine having a spare seedling frame on a machine body having a traveling device.

機体後部に設けた苗タンクに載置した苗床から苗を苗植付部の苗植付け装置で挟み取りながら圃場に苗を植え付ける苗移植機において、苗タンクに載置した苗床が無くなると、上下方向に複数の予備苗載せ台を並べて配置した予備苗枠から苗床を苗タンクに移し替えて圃場への苗の移植を続行する構成が知られている。 In a seedling transplanter that plantes seedlings in a field while pinching seedlings from a seedbed placed in a seedling tank provided at the rear of the aircraft with a seedling planting device in the seedling planting section, when there is no seedbed placed in the seedling tank, the vertical direction A configuration is known in which a seedbed is transferred to a seedling tank from a preliminary seedling frame in which a plurality of preliminary seedling platforms are arranged side by side, and transplantation of seedlings to a field is continued.

特開２００９−２３２８０９号公報JP 2009-232809 A 特開２０１２−２０５５０４号公報JP 2012-205504 A

特許文献１及び２の苗移植機は、施肥装置で肥料を植え付けた苗に供給しているので、苗の補充作業だけでなく、肥料の補充作業を行う必要がある。このため、予備の苗を予備苗枠に積み込む際、予備の肥料も機体に積み込んでおき、施肥装置に貯留した肥料が減少したとき、圃場端まで戻ることなく肥料の補充を行えるようにしている。 Since the seedling transplanting machines of Patent Documents 1 and 2 supply the seedling planted with the fertilizer by the fertilizer application apparatus, it is necessary to perform not only the seedling supplementing operation but also the fertilizer supplementing operation. For this reason, when the spare seedling is loaded on the spare seedling frame, the spare fertilizer is also loaded on the machine body, and when the fertilizer stored in the fertilizer application decreases, the fertilizer can be replenished without returning to the field edge. .

しかしながら、苗とは異なり、圃場外から肥料を積み込んで機体に搬送する肥料搬送用の部材は特許文献１及び２の苗移植機には設けられておらず、作業者は苗よりも重い肥料を圃場端から機体まで持ち運ぶ必要があり、作業者の労力がその分増大するという問題がある。 However, unlike seedlings, the fertilizer transport member that loads fertilizer from outside the field and transports it to the machine body is not provided in the seedling transplanters of Patent Documents 1 and 2, and the worker does not apply fertilizer heavier than the seedling. There is a problem that it is necessary to carry from the field end to the machine body, and the labor of the worker increases accordingly.

特に、圃場端に水路があるときや、圃場端の土質が悪いときなど、圃場端から機体に直接肥料を積み込むことが難しい状況では、作業者は重い肥料を持って圃場内に入り込み、泥土に足を取られる不安定な状態で機体まで移動しなければならない。 Especially in situations where it is difficult to load fertilizer directly into the machine from the field edge, such as when there is a waterway at the field edge or when the soil quality at the field edge is poor, the worker enters the field with heavy fertilizer and enters the mud. You have to move to the aircraft in an unstable state where you can take your feet.

予備苗枠に肥料を積むこともできるが、予備苗枠は苗を積載することを想定したものであるので、重い肥料の積込作業に用いていると、予備苗枠の構成部品にかかる負荷が大きく、通常よりも耐久性の低下が早まり、破損しやすくなる問題がある。 Although it is possible to load fertilizer on the reserve seedling frame, the spare seedling frame is assumed to be loaded with seedlings, so if it is used for loading heavy fertilizer, the load on the components of the reserve seedling frame However, there is a problem that the durability is deteriorated more quickly than usual and is easily damaged.

肥料の量を少なくすれば上記問題は生じないが、その分肥料の積込作業に要する時間が長くなるので、作業能率が大幅に低下する問題がある。
そこで、本発明の課題は、肥料の量が多くても肥料の積込作業を容易に行うことができる作業能率が高い予備苗枠を備えた苗移植機を提供することである。 If the amount of fertilizer is reduced, the above problem does not occur. However, since the time required for loading the fertilizer becomes longer, there is a problem that the work efficiency is greatly reduced.
Then, the subject of this invention is providing the seedling transplanting machine provided with the reserve seedling frame with the high working efficiency which can perform the loading operation | work of a fertilizer easily even if there is much quantity of a fertilizer.

上記本発明の課題を解決するために次のような解決手段を採用する。
請求項１記載の発明は、圃場を走行する走行車体（２）と、該走行車体（２）の後部に備えた苗植付部（４）及び施肥装置（５）と、走行車体（２）の前部左右に備えた予備の苗を積載する予備苗載せ台（３８ａ、３８ｂ、３８ｃ）を有する予備苗枠（３８）と、該予備苗枠（３８）に積載する作業資材を積載して搬送する積込装置（６６）と、前記予備苗枠（３８）と前記積込装置（６６）とを、それぞれ独立して走行車体（２）に回動自在に設けたことを特徴とする苗移植機である。 In order to solve the above-described problems of the present invention, the following means are adopted.
The invention according to claim 1 is a traveling vehicle body (2) traveling on a farm field, a seedling planting part (4) and a fertilizer application device (5) provided at a rear portion of the traveling vehicle body (2), and a traveling vehicle body (2). A spare seedling frame (38) having a spare seedling stage (38a, 38b, 38c) for loading spare seedlings provided on the left and right of the front part, and working materials to be loaded on the preliminary seedling frame (38) A seedling characterized in that a loading device (66) for transporting, the preliminary seedling frame (38) and the loading device (66) are provided independently on the traveling vehicle body (2) so as to be rotatable. It is a transplanter.

請求項２記載の発明は、走行車体（２）の機体前側に予備苗枠（３８）と積込装置（６６）を支持するＵ字形状の支持部材（支持ステー）（４８）を設け、前記支持部材（４８）の上部に予備苗枠（３８）の苗枠回転軸（７２）を配置し、予備苗枠（３８）の下側で、且つ苗枠回転軸（７２）の前側の走行車体（２）に積込装置（６６）の積込装置回転軸（７３）を設け、該積込装置回転軸（７３）に回動アーム（７４）の基部を回動自在に取り付け、回動アーム（７４）の端部に作業資材を積載する積載部材（載置台）（７６）を設け、積込装置（６６）は、積載部材（７６）が機体の前側及び側方外側に突出する積込作業位置と、積載部材（７６）が施肥装置（５）に向かって突出する補充作業位置と、積載部材（７６）が予備苗枠（３８）の下方に位置する収納位置に切替自在に構成したことを特徴とする請求項１記載の苗移植機である。 The invention according to claim 2 is provided with a U-shaped support member (support stay) (48) for supporting the preliminary seedling frame (38) and the loading device (66) on the front side of the vehicle body of the traveling vehicle body (2), A seedling frame rotation shaft (72) of the preliminary seedling frame (38) is arranged above the support member (48), and the traveling vehicle body is located below the preliminary seedling frame (38) and in front of the seedling frame rotation shaft (72). (2) is provided with a loading device rotating shaft (73) of the loading device (66), and a base of a rotating arm (74) is rotatably attached to the loading device rotating shaft (73). A loading member (mounting table) (76) for loading work materials is provided at the end of (74), and the loading device (66) is a loading device in which the loading member (76) protrudes to the front side and the laterally outer side of the machine body. The work position, the replenishment work position where the loading member (76) protrudes toward the fertilizer application (5), and the loading member (76) A seedling transplantation machine of claim 1, wherein the the storage position located below the) were switched freely configured.

請求項３記載の発明は、回動アーム（７４）の端部に回動支軸（６８）を接続し、該回動支軸（６８）を中心として鉛直方向に回動する回動フレーム（６７）を設け、該回動フレーム（６７）に積載部材（７６）を有する積込装置（６６）を載置し、積載部材（７６）は、回動フレーム（６７）を回動アーム（７４）より離れる方向（図４のステップ３５に隣接する点線位置）に向けて回動させた際に上方を向いて積載位置になり、回動フレーム（６７）を回動アーム（７４）に重なる位置に向けて（図２の実線位置）回動させると、下方を向いて非積載位置となる構成としたことを特徴とする請求項２記載の苗移植機である。 According to a third aspect of the present invention, a rotary frame (68) is connected to the end of the rotary arm (74), and the rotary frame (68) rotates in the vertical direction around the rotary spindle (68). 67), and a loading device (66) having a stacking member (76) is placed on the rotating frame (67). The stacking member (76) has the rotating frame (67) as a rotating arm (74). ) A position where it turns upward when it is rotated in the direction farther away (dotted line position adjacent to step 35 in FIG. 4) and becomes the loading position, and the rotation frame (67) overlaps the rotation arm (74). The seedling transplanting machine according to claim 2, wherein the seedling transplanting machine is configured so as to turn downward to a non-loading position when rotated toward the position (solid line position in FIG. 2).

請求項４記載の発明は、積込装置（６６）の積載部材（７６）の積載位置と非積載位置との切替操作は、予備苗枠（３８）を苗枠回転軸（７２）を中心として機体後ろ側に所定角度回動させると共に、積込装置（６６）を積込装置回転軸（７３）を中心として機体前側に所定角度回動させてから行うことを特徴とする請求項２または３記載の苗移植機である。 According to a fourth aspect of the present invention, the switching operation between the loading position and the non-loading position of the loading member (76) of the loading device (66) is performed with the spare seedling frame (38) as the center of the seedling frame rotation axis (72). The rotation is performed after a predetermined angle is turned to the rear side of the machine body and the loading device (66) is turned to the front side of the machine body by a predetermined angle about the loading device rotation shaft (73). The seedling transplanting machine described.

請求項５記載の発明は、走行車体（２）上で、且つ施肥装置（５）の前方に作業者が搭乗する操縦席（３１）を設け、操縦席（３１）の周辺に作業者が機体上を移動するフロアステップ（３５）を設け、積載部材（７６）は、作業資材の積込作業位置で機体側方に突出するときは、その長手方向と機体左右方向が平行となり、作業資材の積込作業位置で機体前方に突出するとき、及び補充作業位置にあるときには、積載部材（７６）の長手方向と機体前後方向が平行となると共に、補充作業位置では積載部材（７６）の機体内側端部がフロアステップ（３５）の外側端部と重なることを特徴とする請求項１から４の何れか１項に記載の苗移植機である。 According to the fifth aspect of the present invention, there is provided a cockpit (31) on which the operator gets on the traveling vehicle body (2) and in front of the fertilizer applicator (5), and the operator is in the vicinity of the cockpit (31). A floor step (35) that moves up is provided, and when the loading member (76) protrudes to the side of the machine body at the work material loading work position, its longitudinal direction and the machine body left-right direction are parallel to each other. When projecting forward from the machine body at the loading operation position and at the replenishment operation position, the longitudinal direction of the stacking member (76) is parallel to the longitudinal direction of the machine body. The seedling transplanter according to any one of claims 1 to 4, wherein the end portion overlaps the outer end portion of the floor step (35).

請求項６記載の発明は、走行車体（２）上で、且つ操縦席（３１）の機体前側に操縦部（３３）を設け、該操縦部（３３）に燃料タンク（８３）を設け、積込装置（６６）は、積載部材（７６）が機体前側に突出する位置よりも機体内側方向に回動可能にすると共に、積込装置（６６）は、操縦部（３３）の前方位置まで機体内側方向に回動可能にすることを特徴とする請求項１から５の何れか１項に記載の苗移植機である。 According to the sixth aspect of the present invention, a control unit (33) is provided on the traveling vehicle body (2) and on the front side of the fuselage seat (31), and a fuel tank (83) is provided in the control unit (33). The loading device (66) allows the loading member (76) to turn inward of the aircraft from the position where the loading member (76) protrudes toward the front of the aircraft, and the loading device (66) extends to the front of the control unit (33). The seedling transplanter according to any one of claims 1 to 5, wherein the seedling transplanter is configured to be rotatable in an inward direction.

請求項７記載の発明は、苗枠回転軸（７２）と積込装置回転軸（７３）とに、各々ロック部材（７７、７８）をそれぞれ装着し、各ロック部材（７７、７８）は、少なくとも一部分が常時重なり合い、各ロック部材（７７、７８）に、少なくとも一つのロック孔（図示せず）をそれぞれ形成し、ロック部材（７７、７８）同士のロック孔に連通して、予備苗枠（３８）と積込装置（６６）の回動を規制するロックピン（７７ａ）を設けたことを特徴とする請求項２から６の何れか１項に記載の苗移植機である。 According to the seventh aspect of the present invention, the lock members (77, 78) are respectively attached to the seedling frame rotation shaft (72) and the loading device rotation shaft (73), and each lock member (77, 78) At least one part always overlaps, each lock member (77, 78) is formed with at least one lock hole (not shown), and communicated with the lock hole between the lock members (77, 78). The seedling transplanter according to any one of claims 2 to 6, further comprising a lock pin (77a) for restricting the rotation of the loading device (66) and the loading device (66).

請求項８記載の発明は、積込装置（６６）の回動アーム（７４）は、平面視で「へ」の字形状として屈曲部を形成し、回動アーム（７４）は、該回動アーム（７４）を機体内側方向に回動させると、その屈曲部が走行車体（２）に接近し、機体後ろ側方向に回動させると屈曲部が走行車体（２）から離間する形状とすることを特徴とする請求項１から７の何れか１項に記載の苗移植機である。 According to the eighth aspect of the present invention, the turning arm (74) of the loading device (66) forms a bent portion as a "H" shape in plan view, and the turning arm (74) When the arm (74) is rotated inward of the vehicle body, the bent portion approaches the traveling vehicle body (2), and when the arm (74) is rotated in the rearward direction of the vehicle body, the bent portion is separated from the traveling vehicle body (2). The seedling transplanter according to any one of claims 1 to 7, wherein the seedling transplanter is provided.

請求項９記載の発明は、積載部材（７６）が、回動フレーム（６７）に作業資材を受ける支持枠（６９）を備えており、回動フレーム（６７）は、内部に空間部を有する長方形とし、支持枠（６９）は回動フレーム（６７）の長手方向に所定間隔毎に配置した構成からなり、回動フレーム（６７）の長手方向の端部に回動支軸（６８）を設け、該回動支軸（６８）には、回動フレーム（６７）の空間部と同じ幅の空間部を各々形成し、複数の支持枠（６９）と回動支軸（６８）は、回動フレーム（６７）の長手方向の幅よりも短い範囲内に配置したことを特徴とする請求項１から８の何れか１項に記載の苗移植機である。 According to the ninth aspect of the present invention, the stacking member (76) includes a support frame (69) that receives the work material on the rotating frame (67), and the rotating frame (67) has a space portion therein. The support frame (69) has a rectangular shape and is arranged at predetermined intervals in the longitudinal direction of the rotating frame (67). The rotating support shaft (68) is provided at the longitudinal end of the rotating frame (67). The rotation support shaft (68) is formed with a space portion having the same width as the space portion of the rotation frame (67), and the plurality of support frames (69) and the rotation support shaft (68) The seedling transplanter according to any one of claims 1 to 8, wherein the seedling transplanter is disposed within a range shorter than a longitudinal width of the rotating frame (67).

請求項１記載の発明によれば、積込装置６６を用いて肥料容器等の作業資材を苗移植機に積み込むことができるので、重量物である作業資材を積み込む作業に要する労力を軽減することができ、作業者の労力が軽減される。 According to invention of Claim 1, since working materials, such as a fertilizer container, can be loaded into a seedling transplanter using the loading device 66, the labor required for the work which loads the heavy working materials is reduced. And the labor of the operator is reduced.

また、予備苗枠３８と積込装置６６とを、それぞれ独立して走行車体２に回動自在に設けたことにより、予備苗枠３８に苗を積み込んだ後でも積込装置６６に作業資材を載置して肥料の積込を行うことができるので、苗や肥料の積込作業の能率が従来技術より向上する。 In addition, by providing the spare seedling frame 38 and the loading device 66 independently on the traveling vehicle body 2 so as to be rotatable, work materials can be placed on the loading device 66 even after the seedling is loaded on the preliminary seedling frame 38. Since it can be placed and loaded with fertilizer, the efficiency of loading work of seedlings and fertilizer is improved over the prior art.

請求項２記載の発明によれば、請求項１記載の発明の効果に加えて、予備苗枠３８と積込装置６６が共にＵ字形状の支持部材（支持ステー）４８に支持されることにより、さらに余分なＵ字形状の支持部材を設ける必要がなくなり、部品点数が削減される。 According to the invention described in claim 2, in addition to the effect of the invention described in claim 1, the preliminary seedling frame 38 and the loading device 66 are both supported by the U-shaped support member (support stay) 48. Further, it is not necessary to provide an extra U-shaped support member, and the number of parts is reduced.

積込装置６６を積込作業位置に配置すると、積載部材７６が走行車体（機体）２の前側または走行車体（機体）２の側方に突出する構成としたことにより、圃場端に走行車体（機体）２を接近させる姿勢にしても、圃場外から肥料や燃料等の作業資材が積み込みやすくなるので、作業能率が従来技術より向上すると共に、作業者の労力が軽減される。 When the loading device 66 is arranged at the loading work position, the loading member 76 protrudes to the front side of the traveling vehicle body (machine body) 2 or to the side of the traveling vehicle body (machine body) 2, so that the traveling vehicle body ( Even when the machine body 2 is brought close, work materials such as fertilizer and fuel can be easily loaded from outside the field, so that the work efficiency is improved as compared with the prior art and the labor of the operator is reduced.

積込装置６６を補充作業位置に移動させると、積載部材７６と施肥装置５及び苗植付部４との間隔が狭くなるので、積載部材７６に積載した作業資材の積込作業に要する時間と労力が小さくなり、作業能率が従来よりも向上する。 When the loading device 66 is moved to the replenishment work position, the interval between the loading member 76, the fertilizer application device 5 and the seedling planting unit 4 is reduced, and therefore the time required for loading the work material loaded on the loading member 76 is reduced. The labor is reduced, and the work efficiency is improved as compared with the prior art.

積込装置６６を収納位置に移動させると、積込装置６６が走行車体（機体）２の前方や側方に突出しないので積込装置６６が壁等の障害物に接触して破損することが防止されると共に、走行車体２から作業者が乗り降りする部分を塞がないので、作業者が走行車体（機体）２から乗り降りする際に積込装置６６を移動させる作業が不要となる。 When the loading device 66 is moved to the storage position, the loading device 66 does not protrude forward or sideward of the traveling vehicle body (airframe) 2, so that the loading device 66 may come into contact with an obstacle such as a wall and be damaged. In addition to being prevented, the portion where the operator gets on and off the traveling vehicle body 2 is not blocked, so that the operation of moving the loading device 66 when the operator gets on and off the traveling vehicle body (airframe) 2 becomes unnecessary.

請求項３記載の発明によれば、請求項２記載の発明の効果に加えて、回動フレーム６７を回動支軸６８を中心として回動アーム（７４）より離れる方向に向けて（図４のステップ３５に隣接する点線位置）回動させた際に上方を向いて積載位置になり、積載部材（７６）を回動アーム（７４）に重なる位置に向けて（図２の実線位置）回動させると、積載部材７６が上方を向いて積載位置となることにより、積載部材７６の突出量を大きくすることができるので、作業資材の積込作業能率が従来技術に比較して一層向上すると共に、積載部材７６から施肥装置５や苗植付部４への作業資材の移動に要する時間と労力が軽減される。 According to the third aspect of the invention, in addition to the effect of the second aspect of the invention, the rotary frame 67 is directed away from the rotary arm (74) about the rotary support shaft 68 (FIG. 4). (The dotted line position adjacent to step 35) is turned upward to the loading position, and the loading member (76) is turned to the position overlapping the rotation arm (74) (solid line position in FIG. 2). When moved, the stacking member 76 faces upward to reach the stacking position, so that the protruding amount of the stacking member 76 can be increased, so that the work work loading efficiency is further improved as compared with the prior art. At the same time, the time and labor required to move the work material from the loading member 76 to the fertilizer application device 5 and the seedling planting unit 4 are reduced.

また、回動支軸６８を中心として回動フレーム６７を回動アーム（７４）に重なる位置に向けて（図２の実線位置）回動させると積載部材７６が下方を向いて非積載位置となることにより、予備苗枠３８と積載部材７６との上下間隔を広くすることができるので、積載部材７６が予備苗枠３８に干渉することが防止され、積込装置６６が予備苗枠３８からはみ出す範囲が抑えられ、積込装置６６が障害物に接触して破損することが防止される。 Further, when the rotation frame 67 is rotated about the rotation support shaft 68 toward the position overlapping the rotation arm (74) (the position indicated by the solid line in FIG. 2), the stacking member 76 faces downward to the non-loading position. As a result, the vertical gap between the preliminary seedling frame 38 and the stacking member 76 can be widened, so that the stacking member 76 is prevented from interfering with the preliminary seedling frame 38, and the loading device 66 is removed from the preliminary seedling frame 38. The protruding range is suppressed, and the loading device 66 is prevented from being damaged due to contact with an obstacle.

請求項４記載の発明によれば、請求項２または３に記載の発明の効果に加えて、予備苗枠３８を機体後ろ側に所定角度（例えば、９０度）回動させ、積込装置６６を機体前側に所定角度（例えば、９０度）回動させてから積載部材７６を操作することにより、予備苗枠３８と積込装置６６が干渉し合うことを防止できるので、機体が傷付くことが防止され、また、積込装置６６の回動軌跡上に予備苗枠３８が位置することにより、積込装置６６を移動させたい位置まで動かせなくなり、作業資材の積込作業能率が低下することが防止される。 According to the invention described in claim 4, in addition to the effect of the invention described in claim 2 or 3, the preliminary seedling frame 38 is rotated by a predetermined angle (for example, 90 degrees) to the rear side of the machine body, and the loading device 66 is provided. By operating the stacking member 76 after rotating the frame to the front side of the machine body by a predetermined angle (for example, 90 degrees), it is possible to prevent the spare seedling frame 38 and the loading device 66 from interfering with each other. In addition, since the preliminary seedling frame 38 is positioned on the rotation trajectory of the loading device 66, the loading device 66 cannot be moved to a position where it is desired to move, and the work material loading efficiency is reduced. Is prevented.

積載部材７６を非積載状態とし、予備苗枠３８を回動させてから積載部材７６を収納位置に移動させると、予備苗枠３８が積載部材７６に干渉することで、積載部材７６の回動を抑えることができるので、回動アーム７４が回動することがあっても積込装置６６が大きく機体前方や側方に突出することが防止され、障害物に接触して破損することが防止される。 When the stacking member 76 is brought into a non-loading state and the preliminary seedling frame 38 is rotated and then the stacking member 76 is moved to the storage position, the preliminary seedling frame 38 interferes with the stacking member 76, thereby rotating the stacking member 76. Therefore, even if the turning arm 74 is rotated, the loading device 66 is prevented from projecting to the front or side of the machine body and from being damaged by contact with an obstacle. Is done.

積載部材７６を積載状態とし、予備苗枠３８を回動させると、予備苗枠３８が回動フレーム６７の上下回動を抑えることができるので、機体２の振動等で回動フレーム６７が回動することを抑制して積載された作業資材が落下することを防止する。そのため積込装置６６から落下した作業資材３６の回収に要する労力が軽減される。 When the loading member 76 is placed in the loaded state and the preliminary seedling frame 38 is rotated, the preliminary seedling frame 38 can suppress the vertical rotation of the rotating frame 67, so that the rotating frame 67 is rotated by vibration of the machine body 2 or the like. It prevents the work material loaded from falling by suppressing the movement. Therefore, the labor required for collecting the work material 36 that has dropped from the loading device 66 is reduced.

請求項５記載の発明によれば、請求項１から４の何れか１項に記載の発明の効果に加えて、積載部材７６は、作業資材の積込作業位置で機体側方に突出するときは、その長手方向と機体左右方向が平行となり、作業資材の積込作業位置で機体前方に突出する（この位置は補充作業位置でもある）ときは、積載部材７６の長手方向と機体前後方向が平行となることにより、積載部材７６の突出量を大きくすることができるので、機外から作業資材の積込や、積載部材７６から施肥装置５や苗植付部４への作業資材の補充作業が容易になるので、従来技術より作業能率が向上すると共に、作業者の労力が軽減される。 According to the invention described in claim 5, in addition to the effect of the invention described in any one of claims 1 to 4, when the loading member 76 protrudes to the side of the machine body at the work work loading position. The longitudinal direction of the loading member 76 is parallel to the horizontal direction of the machine and protrudes forward from the machine at the work material loading work position (this position is also the refilling work position). Since the amount of protrusion of the loading member 76 can be increased by being parallel, the work material is loaded from outside the machine, and the work material is replenished from the loading member 76 to the fertilizer application device 5 and the seedling planting unit 4. Therefore, the work efficiency is improved as compared with the prior art, and the labor of the worker is reduced.

また、積載部材７６は、補充作業位置では積載部材７６の機体内側端部がフロアステップ３５の外側端部と重なり合うことにより、走行車体２上の作業者がフロアステップ３５の外側端部を把握しやすくなり、移動に気を使い過ぎることがなく、作業者の負担が軽減される。 Further, the loading member 76 has an inner end of the body of the loading member 76 overlapped with an outer end of the floor step 35 at the replenishment work position, so that an operator on the traveling vehicle body 2 grasps the outer end of the floor step 35. This makes it easier, does not overuse the movement, and reduces the burden on the operator.

また、請求項６記載の発明によれば、請求項１から５の何れか１項に記載の発明の効果に加えて、積込装置６６を機体内側方向に回動させると、ハンドル３４やボンネット３２等からなる操縦部３３の前に積載部材７６が位置することにより、燃料入りのポリタンク等の作業資材を燃料タンク８３に近付けることができるので、作業者が作業資材を操縦部３３の前まで運ぶ必要がなく、作業者の労力が軽減される。 According to the invention described in claim 6, in addition to the effect of the invention described in any one of claims 1 to 5, when the loading device 66 is rotated inward of the machine body, the handle 34 and the bonnet Since the loading member 76 is positioned in front of the control unit 33 made of 32 or the like, the work material such as a fuel-filled polytank can be brought close to the fuel tank 83, so that the operator can move the work material to the front of the control unit 33. There is no need to carry, and the labor of the operator is reduced.

また、積載部材７６と操縦部３３に設ける燃料タンク８３との距離を短くすることができるので、積載部材７６に積載した作業資材から燃料タンク８３に燃料を送り込みやすくなり、作業能率が従来より向上する。 Further, since the distance between the loading member 76 and the fuel tank 83 provided in the control unit 33 can be shortened, it becomes easier to send fuel from the work material loaded on the loading member 76 to the fuel tank 83, and the work efficiency is improved as compared with the conventional case. To do.

請求項７記載の発明によれば、請求項２から６の何れか１項に記載の発明の効果に加えて、苗枠回転軸７２と積込装置回転軸７３に各々設けたロック部材（例えば円盤状）７７、７８のロック孔を合わせ、ロックピン７７ａでロック部材７７、７８同士を連結すると、予備苗枠３８と積込装置６６との回動を規制されるので、作業資材の積載作業中に積込装置６６が回動することがなくなり、積載部材７６を積込作業位置に戻す作業が不要となり、作業能率が従来よりも向上すると共に、積込中の作業資材が落下することが防止され、地面に落下した作業資材の拾い上げが不要となる。 According to the invention described in claim 7, in addition to the effect of the invention described in any one of claims 2 to 6, lock members (for example, provided on the seedling frame rotating shaft 72 and the loading device rotating shaft 73, respectively) If the lock members 77 and 78 are connected to each other with the lock pin 77a, the rotation of the spare seedling frame 38 and the loading device 66 is restricted, so that the work material is loaded. The loading device 66 does not rotate inside, the work of returning the loading member 76 to the loading work position becomes unnecessary, the work efficiency is improved as compared with the conventional work material, and the work material being loaded may fall. This eliminates the need to pick up work materials that have fallen to the ground.

積載部材７６を収納位置に移動させた状態で、ロック部材７７、７８同士をロックピン７７ａでロックすると、機体の振動等によって回動アーム７４が回動して積載部材７６が積込作業位置や補充作業位置に移動することを防止できるので、積載部材７６が障害物に接触して破損することが防止される。 If the lock members 77 and 78 are locked with the lock pin 77a in a state in which the stacking member 76 is moved to the storage position, the rotating arm 74 is rotated by vibrations of the airframe and the stacking member 76 is moved to the loading work position. Since it can prevent moving to the replenishment work position, the stacking member 76 is prevented from being damaged due to contact with an obstacle.

請求項８記載の発明によれば、請求項１から７の何れか１項に記載の発明の効果に加えて、積込装置６６を機体内側方向に回動させると、回動アーム７４の屈曲部が走行車体２に接近することにより、回動アーム７４による走行車体２の前側の作業空間の占有面積を小さくすることができるので、作業者が走行車体に近寄りやすくなり、燃料や肥料等の作業資材３６の積込作業能率が向上する。 According to the eighth aspect of the invention, in addition to the effect of the first aspect of the invention, when the loading device 66 is rotated in the body inner direction, the turning arm 74 is bent. As the portion approaches the traveling vehicle body 2, the occupation area of the work space on the front side of the traveling vehicle body 2 by the rotating arm 74 can be reduced, so that an operator can easily approach the traveling vehicle body, such as fuel and fertilizer Loading work efficiency of the work material 36 is improved.

積込装置６６を機体後ろ側方向に回動させると、回動アーム７４の屈曲部が走行車体２から離間することにより、回動アーム７４が苗枠回転軸７２に接触するまでの回動量が大きくなるので、積載部材７６を走行車体２に近づけることができ、肥料等の補充作業を安定した位置で行え、補充作業の能率が向上する。 When the loading device 66 is rotated in the rear side direction of the machine body, the amount of rotation until the rotating arm 74 comes into contact with the seedling frame rotating shaft 72 due to the bent portion of the rotating arm 74 being separated from the traveling vehicle body 2. Since it becomes large, the loading member 76 can be brought close to the traveling vehicle body 2, and the replenishment work of fertilizer and the like can be performed at a stable position, and the efficiency of the replenishment work is improved.

請求項９記載の発明によれば、請求項１から８の何れか１項に記載の発明の効果に加えて、複数の支持枠６９を回動フレーム６７に所定間隔毎に配置して積載部材７６を構成したことにより、作業者は積載した作業資材を支持枠６９同士の空間部に手を入れて積み降ろしすることができるので、作業資材の積み降ろし作業の能率が向上する。 According to the ninth aspect of the present invention, in addition to the effect of the first aspect of the present invention, the plurality of support frames 69 are arranged on the rotating frame 67 at predetermined intervals, and the stacking member is provided. By configuring 76, the operator can put and load the loaded work material in the space between the support frames 69, so that the efficiency of the work material loading and unloading work is improved.

本発明の一実施形態の乗用型田植機の側面図である。It is a side view of the riding type rice transplanter of one embodiment of the present invention. 図１の乗用型田植機の平面図である。It is a top view of the riding type rice transplanter of FIG. 図１の苗移植機の右前方部の側面図である。It is a side view of the right front part of the seedling transplanter of FIG. 図１の苗移植機の右前方部の平面図である。It is a top view of the right front part of the seedling transplanter of FIG. 図１の苗移植機の正面図である。It is a front view of the seedling transplanter of FIG. 図１の苗移植機の右前方部の平面図である。It is a top view of the right front part of the seedling transplanter of FIG. 図１の苗移植機の右前方部の側面図である。It is a side view of the right front part of the seedling transplanter of FIG. 図１の苗移植機の右前方部の平面図である。It is a top view of the right front part of the seedling transplanter of FIG. 図１の苗移植機の積込装置に取り付ける積載部材の斜視図である。It is a perspective view of the stacking member attached to the loading apparatus of the seedling transplanter of FIG. 図１の苗移植機の右前方部の側面図である。It is a side view of the right front part of the seedling transplanter of FIG. 図１の苗移植機の苗枠の切替制御のフローチャートある。It is a flowchart of switching control of the seedling frame of the seedling transplanter of FIG.

以下、図面に基づき、本発明の好ましい実施の形態について説明する。
図１及び図２は作業車両の一実施例である乗用型苗移植機の左側面図及び平面図であり、図３には図１の乗用型苗移植機の右前方側面図を示し、図４には図１の乗用型苗移植機の前方要部平面図を示し、図５には図１の乗用型苗移植機の要部正面図を示す。 Hereinafter, preferred embodiments of the present invention will be described with reference to the drawings.
1 and 2 are a left side view and a plan view of a riding seedling transplanter as an embodiment of a work vehicle, and FIG. 3 is a right front side view of the riding seedling transplanter of FIG. 4 shows a front plan view of the main part of the riding seedling transplanter of FIG. 1, and FIG. 5 shows a front view of the main part of the riding seedling transplanter of FIG.

なお、本実施例では乗用型苗移植機の操縦席で運転する者が前進する方向に向かって左右方向をそれぞれ左、右とし、前進する方向を前、後退する方向を後ろという。
この乗用型苗移植機１には、走行車体２の後ろ側に昇降リンク装置３を介して作業部としての苗植付部４が昇降可能に装着されている。 In the present embodiment, the left and right directions are referred to as left and right, respectively, in the direction in which the person driving at the cockpit of the riding seedling transplanter moves forward, the forward direction is referred to as the front, and the backward direction is referred to as the rear.
A seedling planting part 4 as a working part is mounted on the riding seedling transplanting machine 1 on the rear side of the traveling vehicle body 2 via a lifting link device 3 so as to be lifted and lowered.

乗用型苗移植機１は、駆動輪である左右一対の前輪１０，１０及び左右一対の後輪１１，１１を備えた四輪駆動車両であって、機体の前部にミッションケース１２が配置され、そのミッションケース１２の左右側方に前輪ファイナルケース１３，１３が設けられ、該左右前輪ファイナルケース１３，１３の操向方向を変更可能な各々の前輪支持部から外向きに突出する左右前輪車軸１０ａ，１０ａに左右前輪１０，１０が各々取り付けられている。 The riding seedling transplanter 1 is a four-wheel drive vehicle including a pair of left and right front wheels 10 and 10 and a pair of left and right rear wheels 11 and 11 as drive wheels, and a transmission case 12 is disposed at the front of the fuselage. Front wheel final cases 13 and 13 are provided on the left and right sides of the transmission case 12, and left and right front wheel axles projecting outward from respective front wheel support portions capable of changing the steering direction of the left and right front wheel final cases 13 and 13. Left and right front wheels 10 and 10 are respectively attached to 10a and 10a.

また、走行車体２の後ろ側に昇降リンク装置３を介して苗植付部４が昇降可能に装着され、走行車体２の後部上側に施肥装置５の本体部分が設けられている。
さらに、ミッションケース１２の背面部にメインフレーム１５の前端部が固着されており、そのメインフレーム１５の後端左右中央部に前後水平に設けた後輪ローリング軸（図示せず）を支点にして後輪ケース１８，１８がローリング自在に支持され、その後輪ケース１８，１８から外向きに突出する後輪車軸１１ａ，１１ａに後輪１１，１１が取り付けられている。 In addition, a seedling planting portion 4 is mounted on the rear side of the traveling vehicle body 2 so as to be movable up and down via the lifting link device 3, and the main body portion of the fertilizer application device 5 is provided on the rear upper side of the traveling vehicle body 2.
Further, the front end portion of the main frame 15 is fixed to the rear portion of the transmission case 12, and a rear wheel rolling shaft (not shown) provided horizontally in the front and rear at the center of the rear end of the main frame 15 is used as a fulcrum. The rear wheel cases 18 and 18 are supported in a freely rolling manner, and the rear wheels 11 and 11 are attached to the rear wheel axles 11 a and 11 a that protrude outward from the rear wheel cases 18 and 18.

エンジン２０はメインフレーム１５の上に搭載されており、該エンジン２０の回転動力が、静油圧式無段変速装置（ＨＳＴ）２３などを介してミッションケース１２に伝達される。ミッションケース１２に伝達された回転動力は、該ミッションケース１２内の主変速装置及び副変速装置により変速された後、走行動力と外部取り出し軸に分離して取り出される。 The engine 20 is mounted on the main frame 15, and the rotational power of the engine 20 is transmitted to the transmission case 12 via a hydrostatic continuously variable transmission (HST) 23 and the like. The rotational power transmitted to the transmission case 12 is shifted by the main transmission and the auxiliary transmission in the transmission case 12 and then separated into the traveling power and the external take-out shaft.

エンジン２０からＨＳＴ２３を介して伝達される走行動力は、一部が前輪ファイナルケース１３，１３を経て前輪１０，１０を駆動すると共に、残りが後輪ケース１８，１８を経て後輪１１，１１を駆動する。また、外部取出動力は、走行車体２の後部に設けた植付クラッチケース（図示せず）に伝達され、それから植付伝動軸２６によって苗植付部４へ伝動される。 A part of the driving power transmitted from the engine 20 via the HST 23 drives the front wheels 10 and 10 via the front wheel final cases 13 and 13, and the rest passes the rear wheels 11 and 11 via the rear wheel cases 18 and 18. To drive. Further, the external take-out power is transmitted to a planting clutch case (not shown) provided at the rear portion of the traveling vehicle body 2, and then transmitted to the seedling planting unit 4 by the planting transmission shaft 26.

エンジン２０の上部には操縦席３１が設置された操縦部３３があり、該操縦部３３にはＨＳＴ２３を操作して走行車体２の前後進、停止及び走行速度を変速する走行操作レバー（ＨＳＴ操作レバー）１７と走行車体２の走行速度を複数段に変速するための副変速レバー１６が配置されている。 There is a control unit 33 provided with a cockpit 31 at the upper part of the engine 20, and a control lever 33 (HST operation) for operating the HST 23 to shift the vehicle body 2 forward and backward, stop, and change the travel speed. (Lever) 17 and an auxiliary transmission lever 16 for shifting the traveling speed of the traveling vehicle body 2 to a plurality of stages are arranged.

操縦席３１の前方には各種操作機構を内蔵するフロントカバー３２があり、その上方に前輪１０，１０を操向操作するハンドル３４が設けられている。フロントカバー３２の下端左右両側は水平状のフロアステップ３５になっている。フロアステップ３５は多数の穴が設けられており（図２参照）、該ステップ３５を歩く作業者の靴についた泥が圃場に落下するようになっている。フロアステップ３５上の後部は、後輪フェンダを兼ねるリアステップ３６となっている。 A front cover 32 incorporating various operation mechanisms is provided in front of the cockpit 31, and a handle 34 for steering the front wheels 10 is provided above the front cover 32. The left and right sides of the lower end of the front cover 32 are horizontal floor steps 35. The floor step 35 is provided with a number of holes (see FIG. 2), and mud on the shoe of the worker walking through the step 35 falls to the field. The rear part on the floor step 35 is a rear step 36 that also serves as a rear wheel fender.

また、走行車体２の前部左右両側には、補給用の苗を載せておく予備苗枠３８（予備苗載せ台３８ａ，３８ｂ，３８ｃ）を設けている。左側の予備苗枠３８Ｌは図１に示すように前後及び上下に移動式の苗枠３８とし、右側の予備苗枠３８Ｒは苗枠回転軸７２を中心に回動する苗枠である。 Further, on both the left and right sides of the front portion of the traveling vehicle body 2, there are provided spare seedling frames 38 (preliminary seedling placing bases 38a, 38b, 38c) on which supplementary seedlings are placed. As shown in FIG. 1, the left side seedling frame 38 </ b> L is a seedling frame 38 that is movable back and forth and up and down, and the right side seedling frame 38 </ b> R is a seedling frame that rotates about a seedling frame rotation shaft 72.

移動式の予備苗枠３８Ｌは機体の一部である正面視Ｕ字状の予備苗枠支持フレーム４８の左側先端部に支持された支持支柱８０Ｌに第３予備苗枠３８ｃＬと第２、第３移動リンク部材３９ｂ，３９ｃを取り付け、第２、第３移動リンク部材３９ｂ，３９ｃで第２予備苗枠３８ｂＬを支持し、さらに第１、第２移動リンク部材３９ａ，３９ｂと第２予備苗枠３８ｂＬで第１予備苗枠３８ａＬを支持している。第１、第２、第３移動リンク部材３９ａ，３９ｂ，３９ｃは支持支柱８０Ｌに取り付けられた第２移動リンク部材３９ｂの回動中心軸に設けられた図示しないモータを有する駆動装置７０で回動して、第１予備苗枠３８ａＬ、第２予備苗枠３８ｂＬ、第３予備苗枠３８ｃＬを前後ほぼ同一平面状に展開する展開状態と上下に段状に配置される積層状態に変更することができる。 The movable spare seedling frame 38L is connected to the third preliminary seedling frame 38cL and the second and third support struts 80L supported at the left end of the U-shaped preliminary seedling frame support frame 48 that is a part of the aircraft. The movable link members 39b and 39c are attached, the second and third movable link members 39b and 39c support the second preliminary seedling frame 38bL, and the first and second movable link members 39a and 39b and the second preliminary seedling frame 38bL. The first preliminary seedling frame 38aL is supported. The first, second, and third moving link members 39a, 39b, and 39c are rotated by a driving device 70 having a motor (not shown) provided on the rotation center axis of the second moving link member 39b attached to the support column 80L. Then, the first preliminary seedling frame 38aL, the second preliminary seedling frame 38bL, and the third preliminary seedling frame 38cL can be changed to an unfolded state in which the front and rear are deployed in substantially the same plane, and a stacked state in which the first preliminary seedling frame 38aL and the third preliminary seedling frame 38cL are arranged stepwise up and down. it can.

第１予備苗枠３８ａＬ、第２予備苗枠３８ｂＬ、第３予備苗枠３８ｃＬの底面側には図示しないが４輪からなるローラが設けられており、第１予備苗枠３８ａＬ、第２予備苗枠３８ｂＬ、第３予備苗枠３８ｃＬを展開状態にしたときに、該ローラはローラ回転用モータ８２ａ，８２ｂ，８２ｃで駆動可能であり、走行車体２の前方から苗を補充する際にこれらのローラを駆動することで、作業者は苗を第１予備苗枠３８ａＬから第３予備苗枠３８ｃＬまで手で押し込む必要が無くなり、作業者の労力が軽減されると共に、苗を押す際に作業者が苗を掴んだときや、第１予備苗枠３８ａＬ，第２予備苗枠３８ｂＬ、第３予備苗枠３８ｃＬの左右の側壁部分に接触したときに、苗が潰されることが防止されるという利点がある。 Although not shown, a roller having four wheels is provided on the bottom side of the first preliminary seedling frame 38aL, the second preliminary seedling frame 38bL, and the third preliminary seedling frame 38cL, and the first preliminary seedling frame 38aL and the second preliminary seedling frame 38aL are provided. When the frame 38bL and the third preliminary seedling frame 38cL are in the unfolded state, the rollers can be driven by roller rotation motors 82a, 82b, 82c, and these rollers are used when the seedling is replenished from the front of the traveling vehicle body 2. , It is not necessary for the operator to manually push the seedling from the first preliminary seedling frame 38aL to the third preliminary seedling frame 38cL, and the labor of the operator is reduced. There is an advantage that the seedling is prevented from being crushed when the seedling is grasped or when it contacts the left and right side wall portions of the first preliminary seedling frame 38aL, the second preliminary seedling frame 38bL, and the third preliminary seedling frame 38cL. is there.

右側の予備苗枠３８Ｒは苗枠回転軸７２を中心に回動する苗枠３８とし、Ｕ字状支持フレーム４８の右側先端部に並列状に立設された一対の支持支柱８０Ｒに第３予備苗枠３８ａＲ、第２予備苗枠３８ｂＲ、第３予備苗枠３８ｃＲが取り付けられている。一方の支持支柱８０Ｒの下端部が苗枠回転軸７２により、予備苗枠支持フレーム４８の右側先端部に水平方向に回転自在に支持されている。なお、並列状に立設された一対の支持支柱８０Ｒの基部は橋渡し部材７９で支持されている。 The right auxiliary seedling frame 38R is a seedling frame 38 that rotates about the seedling frame rotation shaft 72, and a third auxiliary support column 80R that is erected in parallel with the right end of the U-shaped support frame 48 is provided with a third auxiliary support column 80R. A seedling frame 38aR, a second preliminary seedling frame 38bR, and a third preliminary seedling frame 38cR are attached. The lower end portion of one support column 80R is supported by the seedling frame rotating shaft 72 so as to be rotatable in the horizontal direction at the right end portion of the preliminary seedling frame support frame 48. Note that the base portions of the pair of support columns 80 </ b> R erected in parallel are supported by a bridging member 79.

また、第３予備苗枠３８ｃＲの下方には、積込装置６６が設けられており、該積込装置６６は積込装置回転軸７３で予備苗枠支持フレーム４８の右側先端部に水平方向に回転自在に支持されている。 In addition, a loading device 66 is provided below the third preliminary seedling frame 38cR, and the loading device 66 is horizontally mounted on the right end portion of the preliminary seedling frame support frame 48 by the loading device rotation shaft 73. It is supported rotatably.

前記積込装置回転軸７３は苗枠回転軸７２の直ぐ前側にあり、積込装置回転軸７３には「ヘ」字状の回動アーム７４の一端が接続しており、また、「ヘ」字状の回動アーム７４の他端が回動支軸６８の中央部に接続している。回動支軸６８の両端は平面視で矩形状の回動フレーム６７に回動自在に接続しており、矩形状の回動フレーム６７のなす平面上に積込装置が載置されるように両者が固着している。 The loading device rotation shaft 73 is immediately in front of the seedling frame rotation shaft 72, and one end of a “H” -shaped rotation arm 74 is connected to the loading device rotation shaft 73. The other end of the letter-shaped rotation arm 74 is connected to the center of the rotation support shaft 68. Both ends of the rotation support shaft 68 are rotatably connected to a rectangular rotation frame 67 in plan view so that the loading device is placed on a plane formed by the rectangular rotation frame 67. Both are fixed.

従って、積込装置６６は、積込装置回転軸７３を中心として回動アーム７４の水平方向への回転に応じて図４に示すように苗移植機の右前方で走行車体２の周りを約２７０度の範囲で回転することができる。 Therefore, the loading device 66 moves about the traveling vehicle body 2 around the traveling vehicle body 2 at the right front of the seedling transplanter as shown in FIG. 4 in response to the rotation of the rotation arm 74 about the loading device rotation shaft 73 in the horizontal direction. It can rotate in the range of 270 degrees.

また、図５の苗移植機の右前方部の平面図に示すように、操縦席３３の右横位置で、走行車体２に隣接させて積込装置６６を配置して、各種の作業用資材を載置することができるので操縦者には便利である。 Further, as shown in the plan view of the right front portion of the seedling transplanter in FIG. 5, a loading device 66 is disposed adjacent to the traveling vehicle body 2 at the right lateral position of the cockpit 33, so that various work materials can be used. This is convenient for the operator.

さらに、積込装置６６は回動支軸６８を支点とする回動フレーム６７の回動に応じて上下方向に回動できる。従って、積込装置６６は、図４に示す実線位置で積み込み作業ができる展開位置となり、図２に示す実線位置で収納位置となる。前記収納位置で積込装置６６は、ほぼ同一面積の予備苗枠３８の下側で天地が逆転することになる。 Further, the loading device 66 can rotate in the vertical direction in accordance with the rotation of the rotation frame 67 with the rotation support shaft 68 as a fulcrum. Therefore, the loading device 66 becomes a deployment position where the loading operation can be performed at the solid line position shown in FIG. 4, and becomes a storage position at the solid line position shown in FIG. 2. At the storage position, the loading device 66 is inverted upside down under the reserve seedling frame 38 having substantially the same area.

肥料袋などの重い作業用資材を積込装置６６に積み込む場合、あるいは圃場に移動させる場合に、積込装置６６が図３の点線位置（＝図４のステップ３５に隣接した点線位置）にあると、積込装置６６がステップ３５の上方位置で平面視で一部重なることになるので、操縦者がステップ３５から足を踏み外すことなく、作業をしやすくなり、また圃場で作業をする補助者も、エンジンカバーとほぼ同じ高さ位置にある積込装置６６上の作業用資材を扱い易くなる。 When a heavy work material such as a fertilizer bag is loaded on the loading device 66 or moved to the field, the loading device 66 is at the dotted line position in FIG. 3 (= dotted line position adjacent to step 35 in FIG. 4). Then, since the loading device 66 partially overlaps in a plan view above the step 35, it becomes easy for the operator to work without stepping off the step 35, and the assistant working on the field However, it becomes easier to handle the work material on the loading device 66 that is substantially at the same height as the engine cover.

また、図４に示す実線位置（走行車体２の右側面に積込装置６６の長手方向が直交する位置）に積込装置６６がある場合は、「ヘ」字状の回動アーム７４は走行車体２の前端部と、予備苗枠３８Ｒの前端部に比べて少し前側に位置する。この位置は、作業時に畦と確実に重なる位置であるので、作業者は足場の不安定な圃場内に入ることなく苗や肥料、燃料入りのポリタンク等の作業資材を積み込むことができ、積込装置６６への作業資材の出し入れ作業が容易になる。 Further, when the loading device 66 is located at the solid line position shown in FIG. 4 (a position where the longitudinal direction of the loading device 66 is orthogonal to the right side surface of the traveling vehicle body 2), the “H” -shaped rotating arm 74 is traveling. It is located slightly ahead of the front end of the vehicle body 2 and the front end of the spare seedling frame 38R. Since this position is a position that overlaps with the heel during work, the worker can load work materials such as seedlings, fertilizers, and fuel-filled plastic tanks without entering the unstable field of the scaffold. The work material can be taken into and out of the device 66 easily.

また、図６に示す予備苗枠３８Ｒと積込装置６６のように、予備苗枠３８Ｒを矢印Ｘ方向に機体内側に９０度回転させると共に積込装置６６を回動支軸６８を支点として回動フレーム６７を下側から矢印Ｙ方向に機体２側に１８０度回動させると、予備苗枠３８と積込装置６６が重ならなくなる。また、図４の破線で示すステップ３５に沿った位置にある積込装置６６を９０度回転させて図４の実線位置に移動させると、積込装置６６の載置面側が上側に向いているので、圃場の作業者が積込装置６６の載置面上にある肥料袋などの作業資材を持ち上げ易くなり、作業能率が向上する。 Further, like the preliminary seedling frame 38R and the loading device 66 shown in FIG. 6, the preliminary seedling frame 38R is rotated 90 degrees in the direction of the arrow X toward the inside of the machine body, and the loading device 66 is rotated about the rotation support shaft 68 as a fulcrum. When the moving frame 67 is rotated 180 degrees from the lower side in the direction of the arrow Y toward the machine body 2, the preliminary seedling frame 38 and the loading device 66 do not overlap. Further, when the loading device 66 located at the position along the step 35 indicated by the broken line in FIG. 4 is rotated 90 degrees and moved to the solid line position in FIG. 4, the placement surface side of the loading device 66 faces upward. Therefore, it becomes easy for a worker in the field to lift work materials such as fertilizer bags on the loading surface of the loading device 66, and the work efficiency is improved.

こうして、走行車体２の左右にある予備苗枠３８に苗が載置されていても、さらに積込装置６６を利用して苗床だけでなく肥料容器、燃料入りのポリタンクなどの作業資材を積み込むことができる。また、作業の必要に応じて回転軸７２、７３をそれぞれ支点として予備苗枠３８、積込装置６６を回動させることができる。 In this way, even if seedlings are placed on the spare seedling frames 38 on the left and right of the traveling vehicle body 2, work materials such as fertilizer containers and fuel-filled polytanks are loaded using the loading device 66. Can do. Moreover, the preliminary seedling frame 38 and the loading device 66 can be rotated using the rotary shafts 72 and 73 as fulcrums as needed.

図４の矢印Ｓで示す位置に積込装置６６を移動させると、積込装置６６と走行車体２の前側に内装される燃料タンク８３との間隔を狭めることができる。これにより、図７に示すように、積込装置６６上に燃料入りの携行缶８４を載置し、該燃料タンク８３と積込装置６６上の携行缶８４をホース８５で接続し、携行缶８４から燃料を燃料タンク８３に供給することができる。 When the loading device 66 is moved to the position indicated by the arrow S in FIG. 4, the distance between the loading device 66 and the fuel tank 83 provided on the front side of the traveling vehicle body 2 can be reduced. Accordingly, as shown in FIG. 7, the carrying can 84 containing fuel is placed on the loading device 66, and the carrying can 84 on the loading tank 66 is connected to the fuel tank 83 by the hose 85. The fuel can be supplied from 84 to the fuel tank 83.

このとき、積込装置６６と燃料タンク８３の間隔が狭いために、作業者は携行缶８４を片手で傾け、もう片方の手でホース８５を支持して燃料タンク８３に燃料を供給することができるので、従来のように携行缶８４を持ち上げて燃料の補充をする必要がなく、作業者の労力が軽減されると共に、ホース８５が外れて燃料が圃場にこぼれることが防止される。 At this time, since the gap between the loading device 66 and the fuel tank 83 is narrow, the operator can tilt the carrying can 84 with one hand and support the hose 85 with the other hand to supply fuel to the fuel tank 83. Therefore, it is not necessary to lift the carrying can 84 and replenish the fuel as in the conventional case, and the labor of the operator is reduced, and the hose 85 is detached and fuel is prevented from spilling into the field.

図８に示す位置にある予備苗枠３８Ｒと収納位置にある積込装置６６について述べる。
苗枠回転軸７２と積込装置回転軸７３にそれぞれロック孔を有する円盤状のロック部材７７、７８を設けている。該ロック部材７７、７８のロック孔を合わせ、ロックピン７７ａを該ロック孔に挿入してロック部材７７、７８同士を連結すると、予備苗枠３８Ｒと積込装置６６との回動が規制されることにより、作業資材の積載作業中に積込装置６６が回動することを防止できるので、積載部材７６を積込作業位置に戻す作業が不要となり、作業能率が従来より向上すると共に、積込中の作業資材が落下することが防止され、地面に落下した作業資材の拾い上げが不要となる。 The preliminary seedling frame 38R at the position shown in FIG. 8 and the loading device 66 at the storage position will be described.
Disk-shaped lock members 77 and 78 each having a lock hole are provided on the seedling frame rotation shaft 72 and the loading device rotation shaft 73, respectively. When the lock holes of the lock members 77 and 78 are aligned, the lock pin 77a is inserted into the lock hole and the lock members 77 and 78 are connected to each other, the rotation of the preliminary seedling frame 38R and the loading device 66 is restricted. As a result, the loading device 66 can be prevented from rotating during the work material loading operation, so that the operation of returning the loading member 76 to the loading work position is not required, and the work efficiency is improved as compared with the conventional method. The work material inside is prevented from falling, and it is not necessary to pick up work material that has fallen on the ground.

また、積載部材７６を収納位置に移動させた状態で、ロック部材７７、７８同士をロックすると、機体の振動等によって回動アーム７４が回動して積載部材７６が積込作業位置や補充作業位置に移動することを防止できるので、積載部材７６が障害物に接触して破損することが防止される。 In addition, when the lock members 77 and 78 are locked with the stacking member 76 moved to the storage position, the rotating arm 74 is rotated by vibration of the airframe and the stacking member 76 is loaded or refilled. Since it can prevent moving to a position, it is prevented that the stacking member 76 contacts with an obstacle and is damaged.

図９には、積込装置６６に取り付ける積載部材７６の斜視図（図９（ａ））と平面図（図９（ｂ））を示す。積載部材７６は回動フレーム６７と該回動フレーム６７に接続した複数の支持枠６９からなる。回動フレーム６７は、内部に間隙を有する長方形（ループ状）とし、複数の支持枠６９は折り曲げた回動フレーム６７の長手方向に所定間隔毎に溶接接続している。 FIG. 9 shows a perspective view (FIG. 9A) and a plan view (FIG. 9B) of the stacking member 76 attached to the loading device 66. The stacking member 76 includes a rotation frame 67 and a plurality of support frames 69 connected to the rotation frame 67. The rotating frame 67 has a rectangular shape (loop shape) with a gap inside, and the plurality of support frames 69 are welded at predetermined intervals in the longitudinal direction of the bent rotating frame 67.

回動フレーム６７の長手方向の両端部を橋渡しする回動支軸６８には、回動フレーム６７の空間部と同じ幅の空間部を各々形成し、複数の支持枠６９と回動支軸６８は、回動フレーム６７の長手方向の幅よりも短い範囲内に配置した作業資材を受ける構成としている。 A space portion having the same width as the space portion of the rotation frame 67 is formed on the rotation support shaft 68 that bridges both ends in the longitudinal direction of the rotation frame 67, and a plurality of support frames 69 and the rotation support shaft 68 are formed. Is configured to receive work material disposed within a range shorter than the width of the rotating frame 67 in the longitudinal direction.

こうして、複数の支持枠６９を回動フレーム６７に所定間隔毎に配置して積載部材７６を構成したことにより、作業者は積載した作業資材を支持枠６９同士の空間部に手を入れて積み降ろしすることができるので、作業資材の積み降ろし作業の能率が向上する。 In this way, the stacking member 76 is configured by arranging the plurality of support frames 69 on the rotating frame 67 at predetermined intervals, so that the operator puts the loaded work materials into the space between the support frames 69 and stacks them. Since it can be unloaded, the efficiency of unloading work materials is improved.

回動フレーム６７の長手方向の一端部は積込装置６６を動かす際に、持ち手とすることができる。この持ち手を把持しながら図４に示すように積込装置６６を水平移動することができ、さらに積込装置６６の収納時にもこの部分を把持しながら、積込装置６６を収納位置に回転させることができるので、作業能率が向上する。 One end of the rotating frame 67 in the longitudinal direction can be used as a handle when the loading device 66 is moved. While holding the handle, the loading device 66 can be moved horizontally as shown in FIG. 4, and the loading device 66 is rotated to the storage position while holding this portion when the loading device 66 is stored. Work efficiency is improved.

図１０の苗移植機の前方の側面図に示すように、積込装置回転軸７３を中心に積込装置６６を回転させた後に積込装置６６がＡ位置にあっても、Ｂ位置にあっても、積込装置回転軸７３を傾斜（水平に対して５〜１０度程度）状態の底とするように回動アーム７４に接続している。 As shown in the side view in front of the seedling transplanter in FIG. 10, even if the loading device 66 is in the A position after the loading device 66 is rotated about the loading device rotation shaft 73, the loading device 66 is in the B position. Even so, the loading device rotating shaft 73 is connected to the rotating arm 74 so as to be the bottom in an inclined state (about 5 to 10 degrees with respect to the horizontal).

そのため、ステップ３５上でオペレータが肥料を補給する際に、オペレータが積込装置６６に肥料などを補給する際に、積込装置６６の側方より少し前方の位置に立った状態でも、またオペレータが積込装置６６の側方で片足をステップ３５後方の高い位置に掛けた状態でも、積込装置６６の後方が上がっているため、楽な姿勢で肥料袋などを持ち上げることができる。またボンネット３２の前で積込装置６６上に載せた携行缶８４から燃料を苗移植機へ補給する際にも積込装置６６の後方が上がっているため、燃料補給をし易い。 Therefore, when the operator replenishes the fertilizer on the step 35, the operator can also refill the loading device 66 with the fertilizer or the like, even if the operator stands in a position slightly ahead of the side of the loading device 66. However, even when one foot is hung on the side of the loading device 66 at a high position behind the step 35, the rear of the loading device 66 is raised, so that the fertilizer bag and the like can be lifted in an easy posture. Also, when the fuel is supplied to the seedling transplanter from the carrying can 84 placed on the loading device 66 in front of the hood 32, the rear of the loading device 66 is raised, so that it is easy to refuel.

次に、図１１を用いて本実施例の左側予備苗枠３８Ｌを用いて展開状態と積載状態の切り替えのための制御フローチャートについて説明する。なお、図１１で左側のフローチャートは電気回路の動きを示すステップであり、右側のフローチャートは、実際のモータの作動で予備苗枠３８Ｌが積載状態から展開状態に切り替わると、苗送りローラ８２ａ、８２ｂ、８２ｃが回転して補充された苗を機体後方（苗植付部側）に搬送する作業を示すステップである。 Next, a control flowchart for switching between the unfolded state and the loaded state using the left-side spare seedling frame 38L of the present embodiment will be described with reference to FIG. Note that the flowchart on the left side in FIG. 11 is a step showing the movement of the electric circuit, and the flowchart on the right side shows the seedling feed rollers 82a and 82b when the preliminary seedling frame 38L is switched from the loaded state to the deployed state by the actual operation of the motor. , 82c is a step showing an operation of transporting the replenished seedling to the rear side (seedling planting side) of the machine body.

まず、積載状態にある予備苗枠３８ａ、３８ｂ、３８ｃ上の全てに苗が載置されていることを予備苗枠３８ａ、３８ｂ、３８ｃ上のすべてに設置している図示しない苗残量センサが検知すると、切替駆動装置７０が作動して、予備苗枠３８Ｌを展開状態にする。予備苗枠３８Ｌを前後方向のほぼ同一平面上に並べて展開状態にすることを苗レール変形と呼ぶこととし、予備苗枠３８Ｌを上下３段に配置して積層状態にすることを苗枠変形と呼ぶこととにする。 First, a seedling remaining amount sensor (not shown) installed on all the spare seedling frames 38a, 38b, and 38c indicates that seedlings are placed on all of the spare seedling frames 38a, 38b, and 38c in the loaded state. When detected, the switching drive device 70 is operated to bring the preliminary seedling frame 38L into the deployed state. Arrangement of the preliminary seedling frame 38L on substantially the same plane in the front-rear direction and the unfolded state is referred to as seedling rail deformation, and arranging the preliminary seedling frame 38L in three upper and lower stages to form a stacked state is referred to as seedling frame deformation. I will call it.

苗レール変形にするためには苗レール切替用の図示しないモータ（切替駆動装置７０内にある）を作動させる（Ｓ３）。次いで、Ｓ４で苗レール変形をリミットスイッチが検知すると前記苗レール切替モータが停止する。また、図示しないリミットスイッチで予備苗枠３８Ｌが展開状態になったことを検知すると、苗レールのローラ回転用モータ８２（図５）が作動する（Ｓ５）。次いで図示しない苗残量センサが苗レール上の苗が全てなくなったことを検出する（Ｓ６）と、苗レールのローラ回転用モータ８２が停止する（Ｓ７）。次に苗レール変形モータが作動して（Ｓ８）、予備苗枠３８Ｌを積載状態に変える作動が行われ、予備苗枠変形をリミットスイッチが検知すると予備苗枠は積載状態となる（Ｓ９）。 In order to change the seedling rail, a motor (not shown) for switching the seedling rail (in the switching drive device 70) is operated (S3). Next, when the limit switch detects the deformation of the seedling rail in S4, the seedling rail switching motor stops. When the limit switch (not shown) detects that the preliminary seedling frame 38L is in the unfolded state, the seedling rail roller rotation motor 82 (FIG. 5) operates (S5). Next, when a seedling remaining amount sensor (not shown) detects that all the seedlings on the seedling rail have disappeared (S6), the roller rotation motor 82 of the seedling rail stops (S7). Next, the seedling rail deformation motor is operated (S8), and the operation for changing the preliminary seedling frame 38L to the loaded state is performed. When the limit switch detects the deformation of the preliminary seedling frame, the preliminary seedling frame is loaded (S9).

次に、苗移植機のその他の構成の概略の説明をする。
図１に示すように、苗植付部４の昇降リンク装置３は平行リンク構成であって、１本の上リンク４０と左右一対の下リンク４１，４１を備えている。これらリンク４０，４１，４１は、その基部側がメインフレーム１５の後端部に立設した背面視門型のリンクベースフレーム４２に回動自在に取り付けられ、その先端側に縦リンク４３が連結されている。 Next, an outline of the other configuration of the seedling transplanter will be described.
As shown in FIG. 1, the lifting link device 3 of the seedling planting unit 4 has a parallel link configuration, and includes a single upper link 40 and a pair of left and right lower links 41, 41. These links 40, 41, 41 are pivotally attached to a rear portal type link base frame 42 erected on the rear end of the main frame 15 on the base side, and a vertical link 43 is connected to the tip side thereof. ing.

そして、縦リンク４３の下端部に苗植付部４に回転自在に支承された連結軸４４が挿入連結され、連結軸４４を中心として苗植付部４がローリング自在に連結されている。メインフレーム１５に固着した支持部材と上リンク４０に一体形成したスイングアーム（図示せず）の先端部との間に昇降用油圧シリンダ４６が設けられており、該シリンダ４６を油圧で伸縮させることにより、上リンク４０が上下に回動し、苗植付部４がほぼ一定姿勢のまま昇降する。 And the connecting shaft 44 rotatably supported by the seedling planting part 4 is inserted and connected to the lower end part of the vertical link 43, and the seedling planting part 4 is connected so as to be able to roll around the connecting shaft 44. An elevating hydraulic cylinder 46 is provided between a support member fixed to the main frame 15 and a tip of a swing arm (not shown) integrally formed with the upper link 40, and the cylinder 46 is expanded and contracted hydraulically. As a result, the upper link 40 rotates up and down, and the seedling planting part 4 moves up and down while maintaining a substantially constant posture.

また、苗載せ台５１は苗植付部４の全体を支持する左右方向と上下方向に幅一杯の矩形の支持フレーム６５ｂと支持ローラ６５ａからなる枠体構造物６５をレール状にして左右方向にスライドする構成である。 In addition, the seedling platform 51 has a frame structure 65 composed of a rectangular support frame 65b and a support roller 65a that is full in the left-right direction and the up-down direction for supporting the entire seedling planting portion 4 in the left-right direction. It is the structure which slides.

苗植付部４は６条植の構成で、フレームを兼ねる伝動ケース５０と、マット苗を載せて左右往復動し、苗を一株分ずつ各条の苗取出口５１ａ，…に供給すると共に横一列分の苗を全て苗取出口５１ａ，…に供給する苗送りベルト５１ｂ，…により苗を下方に移送する苗載台５１と、苗取出口５１ａ，…に供給された苗を圃場に植え付ける苗植付爪５２ａを備えた苗植付装置５２，…と、次工程における機体の進路を表土面に線引きする左右一対の線引きマーカ１８４,１８４等を備えている。 The seedling planting section 4 has a six-row planting structure, a transmission case 50 that also serves as a frame, and a mat seedling, reciprocates left and right, and supplies seedlings to the seedling outlets 51a,. A seedling feed belt 51b for supplying all the seedlings for one horizontal row to the seedling outlet 51a, ..., a seedling stage 51 for transferring the seedling downward, and a seedling supplied to the seedling outlet 51a, ... for planting in the field A seedling planting device 52 provided with seedling planting claws 52a, and a pair of left and right drawing markers 184, 184 for drawing the course of the machine body in the next process to the topsoil surface.

なお、機体の前部左右両側には、隣接条に植え付けられた苗の上方に位置し続け、作業者が機体を走行させる目安とする左右一対のサイドマーカ７５，７５を備えている。前記線引きマーカ１８４，１８４は圃場面を削って直進走行の目安となる線を形成するものであるが、土質が柔らかいと、溝が時間の経過によって自然に埋まったり、線引きマーカ１８４，１８４が巻き上げた泥で溝が見えなくなったりすることがある。このときは、サイドマーカ７５，７５と既に植えた隣接条の苗を合わせながら走行すると、隣接条の苗の植え付けに合わせた苗の植え付けが可能となるので、苗の植え付け方向が乱れることがなく、植付精度が向上する。なお、線引きサイドマーカ７５は予備苗枠支持フレーム４８に支持されて、機体両側に設けられている。 Note that a pair of left and right side markers 75 and 75 are provided on the left and right sides of the front part of the machine body, which are positioned above the seedlings planted on the adjacent strips and are used as a guide for the operator to run the machine body. The drawing markers 184 and 184 form a line that is used as a guideline for straight running by cutting the farm scene. However, if the soil is soft, the grooves are naturally buried over time, or the drawing markers 184 and 184 are wound up. The mud may disappear from the mud. At this time, if the side markers 75, 75 and the adjacent seedlings that have already been planted are run, the seedlings can be planted in accordance with the planting of the adjacent strips so that the planting direction of the seedlings is not disturbed. , Planting accuracy is improved. The drawing side markers 75 are supported by the preliminary seedling frame support frame 48 and are provided on both sides of the machine body.

また、苗植付部４の下部には中央にセンターフロート５５、その左右両側にサイドフロート５６，５６がそれぞれ設けられている。
これらフロート５５，５６，５６を、圃場の泥面に接地させた状態で機体を進行させると、フロート５５，５６，５６が泥面を整地しつつ滑走し、その整地跡に苗植付装置５２，…により苗が植え付けられる。各フロート５５，５６，５６は圃場表土面の凹凸に応じて前端側が上下動するように回動自在に取り付けられており、植付作業時にはセンターフロート５５の前部の上下動がフロート傾斜角センサ（図示せず）により検出され、その検出結果に応じ、前記昇降用油圧シリンダ４６を制御する油圧バルブを切り替えて苗植付部４を昇降させることにより、苗の植付深さを常に一定に維持する。 Further, a center float 55 is provided at the center of the seedling planting portion 4, and side floats 56, 56 are provided on the left and right sides thereof.
When these floats 55, 56, 56 are grounded on the mud surface of the field, the aircraft moves forward, and the floats 55, 56, 56 slide while leveling the mud surface. Seedlings are planted by. Each of the floats 55, 56, and 56 is rotatably attached so that the front end side thereof moves up and down according to the unevenness of the soil surface of the field, and the vertical movement of the front part of the center float 55 is a float inclination angle sensor during planting work. The planting depth of the seedling is always kept constant by switching the hydraulic valve that controls the lifting hydraulic cylinder 46 and raising and lowering the seedling planting unit 4 according to the detection result. maintain.

苗植付部４には整地装置の一例であるロータ２７（２７ａ，２７ｂ）が取り付けられている。整地ロータ２７ａ，２７ｂの後ろ上方には、ロータカバー２８を設け、フロート５５，５６上に泥がかからないようにしている。 A rotor 27 (27a, 27b), which is an example of a leveling device, is attached to the seedling planting unit 4. A rotor cover 28 is provided on the upper rear side of the leveling rotors 27a and 27b so that mud is not applied to the floats 55 and 56.

施肥装置５は、肥料ホッパ６０に貯留されている粒状の肥料を繰出部６１，…によって一定量ずつ繰り出し、その肥料を施肥ホース６２，…でフロート５５，５６，５６の左右両側に取り付けた施肥ガイド（図示せず）まで導き、施肥ガイドの前側に設けた作溝体６４（図１），…によって苗植付条の側部近傍に形成される施肥溝内に落とし込むようになっている。ブロア用電動モータ５３で駆動するブロア５８で発生させたエアが左右方向に長いエアチャンバ５９を経由して施肥ホース６２に吹き込まれ、施肥ホース６２内の肥料を風圧で強制的に搬送するようになっている。 The fertilizer applicator 5 feeds the granular fertilizer stored in the fertilizer hopper 60 by a certain amount by the feeding portions 61,... And applies the fertilizer to the left and right sides of the floats 55, 56, 56 with the fertilizer hoses 62,. It guides to a guide (not shown), and it is made to drop in the fertilization groove formed in the side part vicinity of a seedling planting strip by the groove production body 64 (FIG. 1) provided in the front side of the fertilization guide. Air generated by the blower 58 driven by the blower electric motor 53 is blown into the fertilizer hose 62 via the air chamber 59 that is long in the left-right direction, and the fertilizer in the fertilizer hose 62 is forcibly conveyed by wind pressure. It has become.

操縦席３１の前方下部に設けられた副変速レバー１６はレバーガイド（図示せず）に沿って回動操作することにより、図示しない副変速装置が「路上走行速」、「中立」、「植付速」のいずれかに手動で切り換わるように構成されている。そして、副変速レバー１６の基部側に設けた副変速レバーセンサ（レバー１６の操作角度を検出するポテンショメータなど）（図示せず）によって副変速レバー１６の操作位置を検出することができる。 The auxiliary transmission lever 16 provided in the lower front part of the cockpit 31 is rotated along a lever guide (not shown), so that the auxiliary transmission (not shown) is operated as “road speed”, “neutral”, “planting”. It is configured to manually switch to any one of “speed”. The operation position of the sub transmission lever 16 can be detected by a sub transmission lever sensor (such as a potentiometer that detects the operation angle of the lever 16) (not shown) provided on the base side of the sub transmission lever 16.

本発明は、苗植付部を搭載した乗用型苗移植機に限らず、他の作業車両にも利用可能である。 The present invention is not limited to a riding-type seedling transplanter equipped with a seedling planting unit, and can be used for other work vehicles.

１施肥装置付き乗用型苗移植機２走行車体
３昇降リンク装置４苗植付部
５施肥装置１０前輪
１１後輪１１ａ後輪駆動軸
１２ミッションケース１３前輪ファイナルケース
１５メインフレーム１６副変速レバー
１７走行操作レバー１８後輪ケース
２０エンジン２３静油圧式無段変速装置（ＨＳＴ）
２６植付伝動軸２７（２７ａ，２７ｂ）整地ロータ
２８ロータカバー３０エンジンカバー
３１操縦席３２フロントカバー（ボンネット）
３３操縦部３４ハンドル
３５フロアステップ３６リアステップ
３８Ｌ移動式予備苗枠（３８ａ、３８ｂ、３８ｃ）
３８Ｒ回転式予備苗枠（３８ａ、３８ｂ、３８ｃ）
３９ａ、３９ｂ、３９ｃ移動リンク部材
４０上リンク４１下リンク
４２リンクベースフレーム４３縦リンク
４４連結軸４６昇降用油圧シリンダ
４８予備苗枠支柱５０伝動ケース
５１苗載せ台５１ａ苗取出口
５１ｂ苗送りベルト５２苗植付装置
５２ａ苗植付爪５３ブロア用電動モータ
５５センターフロート５６サイドフロート
５８ブロア５９エアチャンバ
６０肥料ホッパ６１繰出部
６２施肥ホース６３肥料載せ台
６４作溝体６５枠体構造物
６５ａ支持ローラ６５ｂ支持フレーム
６６積込装置６７回動フレーム
６８回動支軸６９支持枠
７０切替駆動装置７２苗枠回転軸
７３積込装置回転軸７４回動アーム
７５サイドマーカ７６積載部材
７７、７８ロック部材７９橋渡し部材
８０支持支柱８２ローラ回転用モータ
８３燃料タンク８４携行缶
８５ホース１８４線引きマーカ DESCRIPTION OF SYMBOLS 1 Riding type seedling transplanter with fertilizer 2 Traveling vehicle body 3 Elevating link device 4 Seedling planting part 5 Fertilizer 10 Front wheel 11 Rear wheel 11a Rear wheel drive shaft 12 Mission case 13 Front wheel final case 15 Main frame 16 Sub-shift lever 17 Travel Operation lever 18 Rear wheel case 20 Engine 23 Hydrostatic continuously variable transmission (HST)
26 Planting transmission shaft 27 (27a, 27b) Leveling rotor 28 Rotor cover 30 Engine cover 31 Pilot seat 32 Front cover (bonnet)
33 Control section 34 Handle 35 Floor step 36 Rear step 38L Mobile spare seedling frame (38a, 38b, 38c)
38R Rotating spare seedling frame (38a, 38b, 38c)
39a, 39b, 39c Moving link member 40 Upper link 41 Lower link 42 Link base frame 43 Vertical link 44 Connecting shaft 46 Elevating hydraulic cylinder 48 Preliminary seedling frame support 50 Transmission case 51 Seedling stand 51a Seedling outlet 51b Seedling feed belt 52 Seedling planting device 52a Seedling planting nail 53 Blower electric motor 55 Center float 56 Side float 58 Blower 59 Air chamber 60 Fertilizer hopper 61 Feeding part 62 Fertilizer hose 63 Fertilizer mount 64 Groove body 65 Frame structure 65a Support roller 65b Support frame 66 Loading device 67 Rotating frame 68 Rotating support shaft 69 Support frame 70 Switching drive device 72 Seedling frame rotating shaft 73 Loading device rotating shaft 74 Rotating arm 75 Side marker 76 Loading member 77, 78 Locking member 79 Bridge member 80 Support column 82 Roller rotation Motor 83 Fuel tank 84 Carrying can 85 Hose 184 Drawing marker

Claims

A traveling vehicle body (2) traveling in the field;
A seedling planting part (4) and a fertilizer application device (5) provided at the rear part of the traveling vehicle body (2);
A spare seedling frame (38) having spare seedling platforms (38a, 38b, 38c) for loading spare seedlings provided on the front left and right of the traveling vehicle body (2);
A loading device (66) for loading and transporting work materials to be loaded on the preliminary seedling frame (38);
A seedling transplanting machine, wherein the preliminary seedling frame (38) and the loading device (66) are independently pivoted on the traveling vehicle body (2).

A U-shaped support member (48) for supporting the preliminary seedling frame (38) and the loading device (66) is provided on the front side of the vehicle body of the traveling vehicle body (2),
A seedling frame rotation axis (72) of the preliminary seedling frame (38) is arranged on the upper part of the support member (48),
A loading device rotation shaft (73) of the loading device (66) is provided on the traveling vehicle body (2) below the preliminary seedling frame (38) and in front of the seedling frame rotation shaft (72),
A base of a rotating arm (74) is rotatably attached to the loading device rotating shaft (73),
A loading member (76) for loading work materials is provided at the end of the rotating arm (74),
The loading device (66) includes a loading work position where the stacking member (76) protrudes forward and laterally outward of the machine body, and a replenishment work position where the loading member (76) protrudes toward the fertilizer application (5). The seedling transplanter according to claim 1, wherein the loading member (76) is configured to be switchable to a storage position located below the reserve seedling frame (38).

A rotation support shaft (68) is connected to the end of the rotation arm (74),
A rotation frame (67) that rotates in the vertical direction around the rotation support shaft (68);
A loading device (66) having a loading member (76) is placed on the rotating frame (67),
When the rotation member (76) is rotated in a direction away from the rotation arm (74), the stacking member (76) faces upward to the loading position, and the rotation frame (67) is turned to the rotation arm ( 74) The seedling transplanting machine according to claim 2, wherein the seedling transplanting machine is configured so as to turn downward to a non-loading position when rotated toward a position overlapping with 74).

Switching operation between the loading position and the non-loading position of the loading member (76) of the loading device (66) rotates the spare seedling frame (38) by a predetermined angle about the seedling frame rotation axis (72) to the rear side of the machine body. The seedling transplanter according to claim 2 or 3, wherein the seedling transplanter is operated after the loading device (66) is rotated by a predetermined angle about the loading device rotation shaft (73) toward the front of the machine body.

Provided on the traveling vehicle body (2) and in front of the fertilizer application device (5) is a cockpit (31) on which an operator is boarded,
A floor step (35) is provided around the cockpit (31) for the operator to move on the aircraft,
When the loading member (76) protrudes to the side of the machine body at the work material loading work position, the longitudinal direction and the machine body left-right direction are parallel, and when the work material is loaded to the front of the machine body at the work work loading position, When in the refilling operation position, the longitudinal direction of the stacking member (76) is parallel to the longitudinal direction of the machine body, and at the refilling work position, the inner end of the stacking member (76) is the outer end of the floor step (35). The seedling transplanter according to any one of claims 1 to 4, wherein the seedling transplanter is overlapped with the seedling transplanter.

A control unit (33) is provided on the traveling vehicle body (2) and on the front side of the fuselage seat (31).
A fuel tank (83) is provided in the control section (33),
The loading device (66) can be rotated inward from the position where the loading member (76) protrudes toward the front of the aircraft, and the loading device (66) can be moved to the front position of the control section (33). The seedling transplanting machine according to any one of claims 1 to 5, wherein the seedling transplanting machine is configured to be rotatable in an inner direction of the machine body.

The lock members (77, 78) are respectively attached to the seedling frame rotation shaft (72) and the loading device rotation shaft (73),
At least a portion of each lock member (77, 78) always overlaps, and at least one lock hole (not shown) is formed in each lock member (77, 78). The lock pin (77a) for restricting the rotation of the preliminary seedling frame (38) and the loading device (66) is provided in communication with the lock hole. The seedling transplanter described.

The turning arm (74) of the loading device (66) forms a bent portion as a “he” shape in plan view,
When the turning arm (74) is rotated in the body inner direction, the bent portion approaches the traveling vehicle body (2), and when the rotating arm (74) is rotated in the rear side direction, the bent portion is The seedling transplanting machine according to any one of claims 1 to 7, wherein the seedling transplanting machine has a shape separated from the traveling vehicle body (2).

The loading member (76) includes a support frame (69) that receives the work material on the rotating frame (67).
The rotating frame (67) has a rectangular shape with a space inside, and the support frame (69) is configured to be arranged at predetermined intervals in the longitudinal direction of the rotating frame (67).
A rotation support shaft (68) is provided at the longitudinal end of the rotation frame (67), and the rotation support shaft (68) has a space portion having the same width as the space portion of the rotation frame (67). Each formed,
The plurality of support frames (69) and the rotation support shaft (68) are arranged within a range shorter than the longitudinal width of the rotation frame (67). The seedling transplanter according to Item.