JP7097830B2 - Passenger rice transplanter - Google Patents

Passenger rice transplanter Download PDF

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JP7097830B2
JP7097830B2 JP2019004541A JP2019004541A JP7097830B2 JP 7097830 B2 JP7097830 B2 JP 7097830B2 JP 2019004541 A JP2019004541 A JP 2019004541A JP 2019004541 A JP2019004541 A JP 2019004541A JP 7097830 B2 JP7097830 B2 JP 7097830B2
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frame
spare seedling
seedling stand
locking
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JP2020110107A (en
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俊輔 中森
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Kubota Corp
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Description

本発明は、走行機体の前後方向に延ばして苗を載置可能な使用状態と、折り畳んで苗を載置不能な折り畳み状態と、に切換可能な第一予備苗載せ台と、第一予備苗載せ台の上方に配置された第二予備苗載せ台と、が備えられた乗用型田植機に関する。 The present invention has a first spare seedling stand and a first spare seedling that can be switched between a use state in which seedlings can be placed by extending them in the front-rear direction of the traveling machine and a folded state in which seedlings cannot be placed by folding. It relates to a second spare seedling stand placed above the stand and a passenger-type rice transplanter equipped with.

例えば特許文献1に開示された作業車に、苗植付装置(文献では「苗植付装置」)に補給するための苗を載置可能な第一予備苗載せ台(文献では「レール式予備苗台」)が備えられ、第一予備苗載せ台の上方に複数の第二予備苗載せ台(文献では「通常予備苗台」)が備えられている。第一予備苗載せ台は前後方向に折り畳み可能に構成され、第二予備苗載せ台は機体前後方向の軸芯回りに揺動可能に構成されている。 For example, a first spare seedling stand (“rail type spare” in the document) capable of placing seedlings for supplying seedlings to the seedling planting device (“seedling planting device” in the document) on the work vehicle disclosed in Patent Document 1. A seedling stand ") is provided, and a plurality of second spare seedling stands ("normal spare seedling stands "in the literature) are provided above the first spare seedling stand. The first spare seedling stand is configured to be foldable in the front-rear direction, and the second spare seedling stand is configured to be swingable around the axis in the front-rear direction of the machine.

特開2018-4307号公報Japanese Unexamined Patent Publication No. 2018-4307

特許文献1に開示された第一予備苗載せ台及び第二予備苗載せ台の構成では、第一予備苗載せ台が折り畳まれた状態から作業者が第一予備苗載せ台を前後に広げようとすると、第一予備苗載せ台と第二予備苗載せ台とが干渉する虞がある。特に、第一予備苗載せ台が折り畳まれたまま第二予備苗載せ台に苗が載置されると、その後に作業者が第一予備苗載せ台を使用しようとする際に、第二予備苗載せ台に載置された苗を撤去して第二予備苗載せ台を上方に揺動する作業が必要となる。このため、第一予備苗載せ台が折り畳まれたまま第二予備苗載せ台に苗が載置される場合であっても、第二予備苗載せ台に載置された苗を撤去せずに第一予備苗載せ台を広げられる構成が望ましい。 In the configuration of the first spare seedling stand and the second spare seedling stand disclosed in Patent Document 1, the worker can expand the first spare seedling stand back and forth from the folded state of the first spare seedling stand. Then, there is a possibility that the first spare seedling stand and the second spare seedling stand may interfere with each other. In particular, if seedlings are placed on the second spare seedling stand while the first spare seedling stand is folded, the second spare seedling stand will be used when the worker subsequently intends to use the first spare seedling stand. It is necessary to remove the seedlings placed on the seedling stand and swing the second spare seedling stand upward. Therefore, even if the seedlings are placed on the second spare seedling stand while the first spare seedling stand is folded, the seedlings placed on the second spare seedling stand are not removed. It is desirable to have a configuration in which the first spare seedling stand can be expanded.

上述の不都合を回避するために、第二予備苗載せ台を第一予備苗載せ台に対して前後にずらす構成が考えられる。しかし、このような構成では、作業者が第二予備苗載せ台から苗植付装置に苗を補給する際に、作業空間が圧迫されたり、作業者と第二予備苗載せ台との距離が遠くなって作業性が悪くなったりする虞も考えられる。特に、第二予備苗載せ台が第一予備苗載せ台に対して後側にずれた構成では、乗用型田植機の搭乗部の左右空間が圧迫され、乗用型田植機の搭乗が窮屈になる場合も考えられる。このことから、第一予備苗載せ台と第二予備苗載せ台とが上下に並ぶ構成では、出来るだけ前後左右にずれることなく第一予備苗載せ台と第二予備苗載せ台とが配置される構成が望ましい。 In order to avoid the above-mentioned inconvenience, it is conceivable to shift the second spare seedling stand back and forth with respect to the first spare seedling stand. However, in such a configuration, when the worker replenishes the seedlings from the second spare seedling stand to the seedling planting device, the work space is compressed and the distance between the worker and the second spare seedling stand is increased. There is a possibility that the workability may deteriorate due to the distance. In particular, in a configuration in which the second spare seedling stand is displaced to the rear side with respect to the first spare seedling stand, the left and right spaces of the boarding part of the passenger-type rice transplanter are compressed, and the boarding of the passenger-type rice transplanter becomes cramped. There may be cases. For this reason, in a configuration in which the first spare seedling stand and the second spare seedling stand are arranged vertically, the first spare seedling stand and the second spare seedling stand are arranged so as not to shift back and forth and left and right as much as possible. Configuration is desirable.

本発明は、第二予備苗載せ台に苗が載置されている場合であっても、第一予備苗載せ台を使用状態と折り畳み状態とに容易に切換可能な乗用型田植機を提供することにある。 The present invention provides a passenger-type rice transplanter that can easily switch the first spare seedling stand between the used state and the folded state even when the seedlings are placed on the second spare seedling stand. There is something in it.

本発明による乗用型田植機は、圃場を走行可能な走行機体と、前記走行機体の後部に支持連結されるとともに苗を圃場に植え付け可能な苗植付装置と、前記走行機体の前部に支持されるとともに、前後方向に延ばして苗を載置可能な使用状態と、折り畳んで苗を載置不能な折り畳み状態と、に切換可能な第一予備苗載せ台と、前記第一予備苗載せ台の上方に配置されるとともに、前記第一予備苗載せ台の真上に位置する状態と、前記第一予備苗載せ台の真上に位置しない状態と、に切換可能な第二予備苗載せ台と、前記第一予備苗載せ台を支持する第一フレームと、前記第二予備苗載せ台を支持する第二フレームと、が備えられ、前記第二フレームは前記第一フレームに支持され、前記第一フレームに一対の第一上下向き支持棒が形成され、前記第二フレームに一対の第二上下向き支持棒が形成され、前記一対の第一上下向き支持棒の一方に、前記一対の第二上下向き支持棒の一方が枢支連結され、前記一対の第一上下向き支持棒の他方に、前記一対の第二上下向き支持棒の他方を係止可能な係止支持部が設けられていることを特徴とする。 The passenger-type rice transplanter according to the present invention is supported by a traveling machine capable of traveling in a field, a seedling planting device capable of being supported and connected to the rear portion of the traveling machine and planting seedlings in the field, and a front portion of the traveling machine. At the same time, the first spare seedling stand and the first spare seedling stand that can be switched between a use state in which seedlings can be placed by extending them in the front-back direction and a folded state in which the seedlings cannot be placed by folding. A second spare seedling stand that can be switched between a state in which the seedlings are placed above the first spare seedling stand and a state in which the seedlings are not located directly above the first spare seedling stand. A first frame for supporting the first spare seedling stand and a second frame for supporting the second spare seedling stand are provided , and the second frame is supported by the first frame and described above. A pair of first vertical support rods are formed on the first frame, a pair of second vertical support rods are formed on the second frame, and the pair of first vertical support rods are formed on one of the pair of first vertical support rods. (Ii) One of the vertically oriented support rods is pivotally connected, and the other of the pair of the first vertically oriented support rods is provided with a locking support portion capable of locking the other of the pair of the second vertically oriented support rods. It is characterized by being .

本発明によると、第二予備苗載せ台は、第一予備苗載せ台の真上に位置する状態と、第一予備苗載せ台の真上に位置しない状態と、に切換可能なように構成されている。このため、作業者が第一予備苗載せ台を使用しようとする際に、作業者は、第二予備苗載せ台を、第一予備苗載せ台の真上に位置しない状態に切換えることによって、第一予備苗載せ台を折り畳み状態から使用状態へ切換可能となる。このとき、本発明では、作業者が第二予備苗載せ台に載置された苗を撤去しなくて済む構成が可能となる。また、第二予備苗載せ台が第一予備苗載せ台の真上に位置する状態に切換可能な構成によって、搭乗空間や、作業者が第二予備苗載せ台から苗植付装置へ苗を補給する際の作業空間が確保され易くなる。これにより、第二予備苗載せ台に苗が載置されている場合であっても、第一予備苗載せ台を使用状態と折り畳み状態とに容易に切換可能な乗用型田植機が実現される。
本発明によると、第一予備苗載せ台と第二予備苗載せ台との夫々が別体のフレームに支持される構成である。このため、第二フレームが第一フレームに支持される構成によって、第一予備苗載せ台の真上に位置する状態と、第一予備苗載せ台の真上に位置しない状態と、に切換可能な第二予備苗載せ台の構成が簡素化される。
本発明では、一対の第一上下向き支持棒の一方に、一対の第二上下向き支持棒の一方が枢支連結されるため、簡素な構成で第二予備苗載せ台が揺動可能となる。また、一対の第一上下向き支持棒の他方に、一対の第二上下向き支持棒の他方を係止可能な係止支持部が設けられるため、簡素な構成で第二予備苗載せ台が第一予備苗載せ台の真上に位置する状態に保持される。
According to the present invention, the second spare seedling stand is configured to be switchable between a state where it is located directly above the first spare seedling stand and a state where it is not located directly above the first spare seedling stand. Has been done. Therefore, when the worker intends to use the first spare seedling stand, the worker switches the second spare seedling stand to a state in which the second spare seedling stand is not located directly above the first spare seedling stand. The first spare seedling stand can be switched from the folded state to the used state. At this time, the present invention enables a configuration in which the worker does not have to remove the seedlings placed on the second preliminary seedling loading table. In addition, the configuration is such that the second spare seedling stand can be switched to a state where it is located directly above the first spare seedling stand, so that the boarding space and the operator can transfer seedlings from the second spare seedling stand to the seedling planting device. It becomes easier to secure a work space for replenishment. As a result, even when seedlings are placed on the second spare seedling stand, a passenger-type rice transplanter that can easily switch between the used state and the folded state of the first spare seedling stand is realized. ..
According to the present invention, the first spare seedling stand and the second spare seedling stand are supported by separate frames. Therefore, depending on the configuration in which the second frame is supported by the first frame, it is possible to switch between a state in which the second frame is located directly above the first spare seedling stand and a state in which the second frame is not directly above the first spare seedling stand. The configuration of the second spare seedling stand is simplified.
In the present invention, since one of the pair of the second vertical support rods is pivotally connected to one of the pair of the first vertical support rods, the second spare seedling stand can be swung with a simple configuration. .. Further, since a locking support portion capable of locking the other of the pair of second vertical support rods is provided on the other side of the pair of first vertical support rods, the second spare seedling stand can be provided with a simple configuration. (1) It is held in a state where it is located directly above the spare seedling stand.

なお、本発明において、第一予備苗載せ台及び第二予備苗載せ台に載置される苗には、苗のみならず、苗箱や苗すくい板が含まれるものであっても良い。 In the present invention, the seedlings placed on the first spare seedling stand and the second spare seedling stand may include not only seedlings but also seedling boxes and seedling rake plates.

本発明において、前記第二予備苗載せ台は、上下向き軸芯回りに揺動可能なように構成されていると好適である。 In the present invention, it is preferable that the second spare seedling stand is configured to be swingable around the vertical axis.

本構成であれば、作業者が第二予備苗載せ台を上下向き軸芯回りに揺動するだけで、第二予備苗載せ台は、第一予備苗載せ台の真上に位置する状態と、第一予備苗載せ台の真上に位置しない状態と、に切換可能である。このため、第二予備苗載せ台に苗が載置されたまま、作業者は第二予備苗載せ台を揺動できる。つまり、作業者が第二予備苗載せ台に載置された苗を撤去しなくて済む構成が、簡素な構成によって可能となる。 With this configuration, the operator simply swings the second spare seedling stand around the vertical axis, and the second spare seedling stand is located directly above the first spare seedling stand. , It is possible to switch to the state where it is not located directly above the first spare seedling stand. Therefore, the operator can swing the second spare seedling stand while the seedlings are placed on the second spare seedling stand. That is, a configuration in which the worker does not have to remove the seedlings placed on the second spare seedling stand is possible by a simple configuration.

本発明において、前記係止支持部に上下一対の係止部が設けられ、前記一対の第二上下向き支持棒の他方に、前記上下一対の係止部と対応可能な上下一対の被係止部材が設けられ、前記上下一対の係止部と、前記上下一対の被係止部材と、に鉤掛けられることによって、前記上下一対の係止部と前記上下一対の被係止部材との係止状態を保持可能なフック部材が備えられていると好適である。 In the present invention, the locking support portion is provided with a pair of upper and lower locking portions, and the other of the pair of second vertical support rods is locked with a pair of upper and lower locking portions that can correspond to the pair of upper and lower locking portions. A member is provided, and by being hooked on the pair of upper and lower locking portions and the pair of upper and lower locked members, the pair of upper and lower locking portions and the pair of upper and lower locked members are engaged with each other. It is preferable that a hook member capable of holding a stopped state is provided.

本構成によると、上下一対の被係止部材が上下一対の係止部に係止される構成によって、一対の第二上下向き支持棒の他方を係止される。この状態で、上下一対の係止部と、上下一対の被係止部材と、がフック部材によって鉤掛けられるため、第二予備苗載せ台が第一予備苗載せ台の真上に位置する状態にしっかりと保持される。 According to this configuration, the other of the pair of second vertical support rods is locked by the configuration in which the pair of upper and lower locked members are locked to the pair of upper and lower locking portions. In this state, the pair of upper and lower locking portions and the pair of upper and lower locked members are hooked by the hook members, so that the second preliminary seedling mounting table is located directly above the first preliminary seedling loading table. It is firmly held in.

圃場作業機としての乗用型田植機を示す機体左側面図である。It is a left side view of the machine which shows the riding type rice transplanter as a field work machine. 圃場作業機としての乗用型田植機を示す平面図である。It is a top view which shows the riding type rice transplanter as a field work machine. 乗用型田植機における搭乗部及びその周辺の部分を示す正面図である。It is a front view which shows the boarding part and the peripheral part in a passenger-type rice transplanter. 第一予備苗載せ台及び第二予備苗載せ台の部分を示す斜視図である。It is a perspective view which shows the part of the 1st spare seedling stand and the 2nd spare seedling stand. 第二予備苗載せ台を有する予備苗台ユニットの支持構造を示す機体右側面図である。It is a right side view of the machine | body which shows the support structure of the spare seedling stand unit which has the 2nd spare seedling stand. 第二予備苗載せ台を有する予備苗台ユニットにおける遊端側の支持構造を示す正面図である。It is a front view which shows the support structure on the free end side in the spare seedling stand unit which has the 2nd spare seedling stand. 第二予備苗載せ台を有する予備苗台ユニットにおける基端側の支持構造を示す背面図である。It is a rear view which shows the support structure of the base end side in the spare seedling stand unit which has the 2nd spare seedling stand. キャノピを有する乗用型田植機を示す平面図である。It is a top view which shows the passenger-type rice transplanter which has a canopy. キャノピが簡易収納位置である場合における乗用型田植機を示す機体左側面図である。It is a left side view of the machine which shows the passenger-type rice transplanter when the canopy is a simple storage position. キャノピが収納位置である場合における乗用型田植機を示す機体左側面図である。It is a left side view of the machine which shows the passenger-type rice transplanter when the canopy is a storage position. 保持機構を示す機体左側面図である。It is a left side view of the machine body which shows the holding mechanism. 保持機構を示す正面図である。It is a front view which shows the holding mechanism. 係止機構及び被係止部材を示す機体左側面図である。It is a left side view of the airframe which shows the locking mechanism and the locked member. 係止機構及び被係止部材を示す図13のXIV-XIV断面図である。13 is a cross-sectional view taken along the line XIV-XIV of FIG. 13 showing a locking mechanism and a locked member.

〔乗用型田植機の基本構成〕
本発明の実施形態を図面に基づいて説明する。なお、図2において、矢印「F」が走行機体Cの機体前部側、矢印「B」が走行機体Cの機体後部側、矢印「L」が走行機体Cの機体左部側、矢印「R」が走行機体Cの機体右部側である。
[Basic configuration of passenger rice transplanter]
An embodiment of the present invention will be described with reference to the drawings. In FIG. 2, the arrow "F" is the front side of the traveling machine C, the arrow "B" is the rear side of the traveling machine C, the arrow "L" is the left side of the traveling machine C, and the arrow "R". Is the right side of the traveling machine C.

図1及び図2に示されているように、乗用型田植機には、左右一対の操舵車輪10,10と、左右一対の後車輪11,11と、を有し、圃場を走行可能な走行機体Cが備えられている。また、苗植付装置Wが上下昇降可能なように走行機体Cの後部に支持連結され、苗植付装置Wは圃場に対する苗を植え付け可能に構成されている。左右一対の操舵車輪10は、走行機体Cの機体前部に設けられて走行機体Cの向きを変更操作自在なように構成され、左右一対の後車輪11は、走行機体Cの機体後部に設けられている。苗植付装置Wは、リンク機構17を介して走行機体Cの後端に昇降自在に連結されている。リンク機構17は昇降用油圧シリンダ16の伸縮作動により昇降作動する。 As shown in FIGS. 1 and 2, the passenger-type rice transplanter has a pair of left and right steering wheels 10 and 10 and a pair of left and right rear wheels 11 and 11, and can travel in a field. Aircraft C is provided. Further, the seedling planting device W is supported and connected to the rear part of the traveling machine C so that the seedling planting device W can move up and down, and the seedling planting device W is configured to be able to plant seedlings in the field. The pair of left and right steering wheels 10 are provided at the front portion of the traveling machine C so that the direction of the traveling machine C can be changed and operated, and the pair of left and right rear wheels 11 are provided at the rear portion of the traveling machine C. Has been done. The seedling planting device W is movably connected to the rear end of the traveling machine body C via a link mechanism 17. The link mechanism 17 moves up and down by the expansion and contraction operation of the lifting hydraulic cylinder 16.

走行機体Cの前部には、走行機体Cを走行駆動可能なエンジン13と、開閉式のボンネット12と、が備えられている。ボンネット12は後上がりに傾斜する傾斜面を有するとともにエンジン13を収納可能に構成されている。詳述はしないが、操舵車輪10若しくは後車輪11、またはその両方に、エンジン13の動力を伝達するための変速機構として、公知のHST(Hydraulic Static Transmission、不図示)が備えられている。エンジン13の動力が、機体に備えられた変速機構を介して操舵車輪10及び後車輪11に伝達され、変速後の動力が電動モータ駆動式の植付クラッチ(不図示)を介して苗植付装置Wに伝達される。走行機体Cには、前後方向に沿って延びる機体フレーム14が備えられ、機体フレーム14の前部には支持支柱フレーム15が立設されている。 The front portion of the traveling machine body C is provided with an engine 13 capable of driving the traveling machine body C and an opening / closing bonnet 12. The bonnet 12 has an inclined surface that inclines backward and is configured to accommodate the engine 13. Although not described in detail, a known HST (Hydraulic Static Transmission, not shown) is provided on the steering wheel 10, the rear wheel 11, or both as a transmission mechanism for transmitting the power of the engine 13. The power of the engine 13 is transmitted to the steering wheels 10 and the rear wheels 11 via the transmission mechanism provided in the machine, and the power after the shift is planted via an electric motor-driven planting clutch (not shown). It is transmitted to the device W. The traveling machine body C is provided with a machine body frame 14 extending in the front-rear direction, and a support support column frame 15 is erected at the front portion of the machine body frame 14.

苗植付装置Wに、複数(例えば四個)の伝動ケース18と、複数(例えば八個)の回転ケース19と、整地フロート21と、苗載せ台22と、が備えられている。回転ケース19は、各伝動ケース18の後部の左側部及び右側部に、夫々回転自在に支持されている。
夫々の回転ケース19の両端部に、一対のロータリ式の植付アーム20が備えられている。整地フロート21は、圃場の田面を整地するものであり、苗植付装置Wに複数備えられている。苗載せ台22に、植え付け用のマット状苗が載置される。
The seedling planting device W is provided with a plurality of (for example, four) transmission cases 18, a plurality of (for example, eight) rotating cases 19, a leveling float 21, and a seedling loading platform 22. The rotary case 19 is rotatably supported on the left side portion and the right side portion of the rear portion of each transmission case 18, respectively.
A pair of rotary type planting arms 20 are provided at both ends of each of the rotating cases 19. The ground leveling float 21 is for leveling the field surface of the field, and is provided in a plurality of seedling planting devices W. A mat-shaped seedling for planting is placed on the seedling stand 22.

苗植付装置Wは、苗載せ台22を左右に往復横送り駆動しながら、伝動ケース18から伝達される動力により各回転ケース19を回転駆動して、苗載せ台22の下部から各植付アーム20により交互に苗を取り出して圃場の田面に植え付けるようになっている。図示はしないが、苗植付装置Wは、複数の回転ケース19に備えられた植付アーム20により苗を植え付けるように構成されている。 The seedling planting device W drives each rotary case 19 to rotate by the power transmitted from the transmission case 18 while driving the seedling stand 22 back and forth laterally, and planting each from the lower part of the seedling stand 22. Seedlings are alternately taken out by the arm 20 and planted on the surface of the field. Although not shown, the seedling planting device W is configured to plant seedlings by a planting arm 20 provided in a plurality of rotating cases 19.

詳述はしないが、マーカ装置23は、作用姿勢と格納姿勢とに切換え可能なように構成されている。作用姿勢の状態で、マーカ装置23は、走行機体Cの走行に伴って圃場の田面に接地して次回の作業工程に対応する田面に指標ライン(不図示)を形成する。格納姿勢の状態で、マーカ装置23は圃場の田面から上方に離れる。マーカ装置23の姿勢切換えは電動モータ(不図示)により行われる。ボンネット12の先端位置に棒状のセンターマスコット24が備えられ、センターマスコット24は、マーカ装置23によって圃場に描かれる指標ラインに沿って走行するための目印である。 Although not described in detail, the marker device 23 is configured to be switchable between a working posture and a retracted posture. In the state of the working posture, the marker device 23 touches the field surface of the field as the traveling machine C travels, and forms an index line (not shown) on the field surface corresponding to the next work process. In the retracted position, the marker device 23 moves upward from the field surface of the field. The attitude of the marker device 23 is switched by an electric motor (not shown). A rod-shaped center mascot 24 is provided at the tip position of the bonnet 12, and the center mascot 24 is a mark for traveling along an index line drawn on the field by the marker device 23.

走行機体Cの中央部には、各種の運転操作が行われる搭乗部25が備えられている。搭乗部25は、走行機体Cの横幅に亘って走行機体Cの上に設けられる。搭乗部25には、搭乗座席26と、操向ハンドル27と、例えば主変速レバー28等の各種操作具と、が備えられている。搭乗座席26は、走行機体Cの中央部に備えられ、搭乗者が着席可能なように構成されている。操向ハンドル27は、人為操作によって操舵車輪10の操向操作を可能なように構成されている。走行機体Cの前後進の切換え操作や走行速度の変更操作が、例えば主変速レバー28等の操作によって可能であり、苗植付装置Wの昇降操作等が搭乗部25の各種操作具によって可能である。搭乗部25の足元部位には床部30が設けられ、床部30の左右両方に乗降用ステップ35が設けられている。乗降用ステップ35は、搭乗部25の左右側方から搭乗者が搭乗部25へ乗降可能なように構成されている。搭乗部25の上方に、後述するキャノピ50が備えられている。 A boarding unit 25 for performing various driving operations is provided in the central portion of the traveling machine body C. The boarding section 25 is provided on the traveling machine C over the width of the traveling machine C. The boarding section 25 is provided with a boarding seat 26, a steering handle 27, and various operating tools such as a main shift lever 28. The boarding seat 26 is provided in the central portion of the traveling aircraft C and is configured so that the passenger can take a seat. The steering handle 27 is configured so that the steering wheel 10 can be steered by human operation. The forward / backward switching operation of the traveling machine C and the changing operation of the traveling speed can be performed by, for example, the operation of the main speed change lever 28, and the raising / lowering operation of the seedling planting device W can be performed by various operation tools of the boarding unit 25. be. A floor portion 30 is provided at the foot portion of the boarding portion 25, and steps 35 for getting on and off are provided on both the left and right sides of the floor portion 30. The boarding / alighting step 35 is configured so that the passenger can get on / off the boarding section 25 from the left and right sides of the boarding section 25. A canopy 50, which will be described later, is provided above the boarding section 25.

走行機体Cにおけるボンネット12の左右側部には、レールを有する折り畳み式の第一予備苗載せ台31と、後述する予備苗台ユニット40と、が備えられている。第一予備苗載せ台31及び予備苗台ユニット40は、苗植付装置Wに補給するための予備苗を載置可能なように構成されている。走行機体Cにおけるボンネット12の左右側部に左右一対の第一フレーム32が備えられている。第一フレーム32は走行機体Cの前部に立設される。 The left and right sides of the bonnet 12 in the traveling machine C are provided with a foldable first spare seedling stand 31 having rails and a spare seedling stand unit 40 described later. The first spare seedling stand 31 and the spare seedling stand unit 40 are configured so that spare seedlings for replenishing the seedling planting device W can be placed. A pair of left and right first frames 32 are provided on the left and right side portions of the bonnet 12 in the traveling machine body C. The first frame 32 is erected on the front portion of the traveling machine body C.

第一フレーム32はU字状に形成された棒状部材であって、第一フレーム32に一対の第一上下向き支持棒が形成されている。第一フレーム32の上端部から下方に向かって一対の第一上下向き支持棒が二股分岐することによって、第一フレーム32はU字状に形成されている。第一フレーム32は第一予備苗載せ台31及び予備苗台ユニット40を支持する。 The first frame 32 is a rod-shaped member formed in a U shape, and a pair of first vertical support rods are formed on the first frame 32. The first frame 32 is formed in a U shape by bifurcating a pair of first vertically oriented support rods from the upper end portion of the first frame 32 downward. The first frame 32 supports the first spare seedling stand 31 and the spare seedling stand unit 40.

左右一対の第一フレーム32,32の上端部の夫々にヒンジ33Aが設けられ、左右一対のヒンジ33A,33Aの夫々に亘って連結部33が上下揺動可能に横架されている。
連結部33は一対のヒンジ33A,33Aを介して機体横向きの軸芯回りに上下揺動可能に構成されている。連結部33の揺動によって、第一フレーム32の上端部から上向きに延びる状態と、第一フレーム32の上端部から下向きに延びる状態とに、切換可能なように連結部33は構成されている。このように、連結部33は、第一フレーム32の上部に揺動可能に連結支持されるとともに、遊端部の上下揺動を可能に構成されている。
Hinge 33A is provided on each of the upper end portions of the pair of left and right first frames 32, 32, and the connecting portion 33 is laid horizontally so as to be vertically swingable over each of the pair of left and right hinges 33A, 33A.
The connecting portion 33 is configured to be able to swing up and down around the axis in the lateral direction of the machine body via a pair of hinges 33A and 33A. The connecting portion 33 is configured so that it can be switched between a state of extending upward from the upper end portion of the first frame 32 and a state extending downward from the upper end portion of the first frame 32 due to the swing of the connecting portion 33. .. As described above, the connecting portion 33 is configured to be swingably connected and supported on the upper portion of the first frame 32 and to be vertically swingable at the free end portion.

連結部33の上部に衛星測位ユニット34が取り付けられている。衛星測位ユニット34は、地球の上空を周回する複数の航法衛星から発信される電波を受信することによって、走行機体Cの位置を検出可能に構成されている。 A satellite positioning unit 34 is attached to the upper part of the connecting portion 33. The satellite positioning unit 34 is configured to be able to detect the position of the traveling aircraft C by receiving radio waves transmitted from a plurality of navigation satellites orbiting the earth.

〔予備苗台ユニットの構成について〕
図1乃至図4に示されるように、第一予備苗載せ台31は折り畳み可能な三つの載置台を有し、三つの載置台が前後に並んで連接されている。前後中央の載置台に対して前側の載置台と後側の載置台とが前後中央の載置台の上に積み重なることによって、第一予備苗載せ台31は折り畳み可能に構成されている。前側の載置台は前後中央の載置台よりも前側の揺動支点回りに前後揺動可能に構成され、後側の載置台は前後中央の載置台よりも後側の揺動支点回りに前後揺動可能に構成されている。これにより、使用時における第一予備苗載せ台31は前後に延出され、第一予備苗載せ台31はマット状苗や苗箱、苗すくい板等を載置可能な使用状態となる。このように、第一予備苗載せ台31は、走行機体Cの前部に支持されるとともに、前後方向に延ばして苗を載置可能な使用状態と、折り畳んで苗を載置不能な折り畳み状態と、に切換可能なように構成されている。
[About the configuration of the spare nursery unit]
As shown in FIGS. 1 to 4, the first preliminary seedling mounting table 31 has three foldable mounting tables, and the three mounting tables are connected side by side in the front-rear direction. The first preliminary seedling pedestal 31 is configured to be foldable by stacking the front pedestal and the rear pedestal on the pedestal in the front and rear center with respect to the pedestal in the front and rear center. The front mounting table is configured to swing back and forth around the swing fulcrum on the front side of the front and rear center mounting table, and the rear mounting table swings back and forth around the rocking fulcrum on the rear side of the front and rear center mounting table. It is configured to be movable. As a result, the first preliminary seedling mounting table 31 is extended back and forth during use, and the first preliminary seedling loading table 31 is in a usable state in which mat-shaped seedlings, seedling boxes, seedling rake boards, etc. can be placed. In this way, the first spare seedling loading table 31 is supported by the front portion of the traveling machine C, and is in a used state in which the seedlings can be placed by extending in the front-rear direction, and in a folded state in which the seedlings cannot be placed by folding. It is configured to be switchable to and.

図1に示された機体左側面視において、作業者が後側の載置台を時計回りに揺動するとともに前側の載置台を反時計回りに揺動することによって、第一予備苗載せ台31は、折り畳み状態から使用状態に切換可能に構成されている。しかし、使用状態の予備苗台ユニット40は前後中央の載置台の上方に位置し、予備苗台ユニット40と第一予備苗載せ台31の前後中央の載置台とは平面視で重複する。第一予備苗載せ台31が折り畳まれた状態で、前側の載置台及び後側の載置台が前後中央の載置台の上に積み重ねられている。このため、作業者が前側の載置台及び後側の載置台を揺動しようとすると、前側の載置台及び後側の載置台と予備苗台ユニット40とが当接し、作業者は第一予備苗載せ台31を使用状態に切換えられない虞がある。このような不都合を回避するため、予備苗台ユニット40は、第一フレーム32に対して上下向きの上下向き軸芯V回りに揺動可能に構成されている。 In the left side view of the machine shown in FIG. 1, the operator swings the rear mounting table clockwise and the front mounting table counterclockwise, so that the first preliminary seedling mounting table 31 Is configured to be switchable from the folded state to the used state. However, the spare seedling stand unit 40 in the used state is located above the mounting table in the center of the front and rear, and the spare seedling stand unit 40 and the mounting table in the center of the front and rear of the first spare seedling stand 31 overlap in a plan view. With the first spare seedling mounting table 31 folded, the front mounting table and the rear mounting table are stacked on the front and rear center mounting tables. Therefore, when the worker tries to swing the front mounting table and the rear mounting table, the front mounting table and the rear mounting table come into contact with the spare seedling stand unit 40, and the worker is the first spare. There is a risk that the seedling stand 31 cannot be switched to the used state. In order to avoid such inconvenience, the spare seedling stand unit 40 is configured to be swingable around the vertical axis V in the vertical direction with respect to the first frame 32.

予備苗台ユニット40は、複数の第二予備苗載せ台41と、第二フレーム42と、係止支持部43と、揺動支持部44と、を有する。 The spare seedling stand unit 40 has a plurality of second spare seedling stand 41, a second frame 42, a locking support portion 43, and a swing support portion 44.

図3及び図4に示されるように、複数の第二予備苗載せ台41が、上下に並ぶ状態で第二フレーム42に支持される。なお、図4には、機体右側の第二予備苗載せ台41や第二フレーム42等が示されている。第二フレーム42に一対の第二上下向き支持棒が形成されている。第二フレーム42は、上端部から下方に向かって一対の第二上下向き支持棒が二股分岐することによってU字状に形成された棒状部材であって、一対の第二上下向き支持棒の両側の二箇所に、夫々の第二予備苗載せ台41が支持される。前後方向視において、第二フレーム42は第二予備苗載せ台41を片持ち支持する。詳述はしないが、第二予備苗載せ台41の夫々は、前後向きの軸芯回りに第二フレーム42に対して上下揺動可能に構成されている。第二予備苗載せ台41が最も下側に揺動した状態で、第二予備苗載せ台41の載置面が水平方向に沿う。この状態で、第二予備苗載せ台41はマット状苗や苗箱、苗すくい板等を載置可能である。 As shown in FIGS. 3 and 4, a plurality of second preliminary seedling stands 41 are supported by the second frame 42 in a vertically arranged state. Note that FIG. 4 shows the second spare seedling loading table 41, the second frame 42, and the like on the right side of the machine body. A pair of second vertical support rods are formed on the second frame 42. The second frame 42 is a rod-shaped member formed in a U shape by bifurcating a pair of second vertical support rods downward from the upper end portion, and both sides of the pair of second vertical support rods. The second spare seedling stand 41 is supported at each of the two locations. In the front-back direction, the second frame 42 cantileverly supports the second spare seedling mounting table 41. Although not described in detail, each of the second spare seedling pedestals 41 is configured to be vertically swingable with respect to the second frame 42 around the axis in the front-rear direction. The mounting surface of the second spare seedling stand 41 is aligned with the horizontal direction in a state where the second spare seedling stand 41 swings to the lowermost side. In this state, the second spare seedling mounting table 41 can place a mat-shaped seedling, a seedling box, a seedling rake board, or the like.

図4及び図5に示されるように、係止支持部43は第一フレーム32の一対の第一上下向き支持棒のうちの前部の第一上下向き支持棒に支持され、揺動支持部44は第一フレーム32の一対の第一上下向き支持棒のうちの後部の第一上下向き支持棒に支持される。なお、図5乃至図7には、機体右側の第一フレーム32における係止支持部43や揺動支持部44等が示されている。図5及び図7に示されるように、揺動支持部44は上下一対の軸芯孔部44A,44Bを有し、一対の軸芯孔部44A,44Bは同一軸芯である上下向き軸芯Vに沿う筒状の孔を有する。U字状に形成された第二フレーム42における一対の第二上下向き支持棒のうちの機体後部の第二上下向き支持棒に上下一対の揺動連結部42A,42Aが設けられ、一対の揺動連結部42A,42Aが揺動支持部44に対して一対の支点ピン46,46を介して揺動可能に支持される。このことから、第二フレーム42における一対の第二上下向き支持棒のうちの機体後部の第二上下向き支持棒は揺動基端部である。このため、第二予備苗載せ台41は、上下向き軸芯V回りに揺動可能なように構成されている。支点ピン46は円柱状に形成されている。 As shown in FIGS. 4 and 5, the locking support 43 is supported by the first vertical support rod at the front of the pair of first vertical support rods of the first frame 32, and is supported by the swing support portion. 44 is supported by the rear first vertical support rod of the pair of first vertical support rods of the first frame 32. It should be noted that FIGS. 5 to 7 show a locking support portion 43, a swing support portion 44, and the like in the first frame 32 on the right side of the machine body. As shown in FIGS. 5 and 7, the swing support portion 44 has a pair of upper and lower shaft core hole portions 44A and 44B, and the pair of shaft core hole portions 44A and 44B are vertically oriented shaft cores having the same shaft core. It has a tubular hole along V. A pair of vertical swing connecting portions 42A and 42A are provided on the second vertical support rod at the rear of the machine body among the pair of second vertical support rods in the second frame 42 formed in a U shape, and a pair of rocking joints 42A and 42A are provided. The dynamic connecting portions 42A and 42A are swingably supported by the swing support portion 44 via a pair of fulcrum pins 46 and 46. For this reason, of the pair of second vertical support rods in the second frame 42, the second vertical support rod at the rear of the machine body is the swing base end portion. Therefore, the second spare seedling mounting table 41 is configured to be swingable around the vertical axis V. The fulcrum pin 46 is formed in a columnar shape.

一つの揺動連結部42Aに、軸芯孔部44Aまたは軸芯孔部44Bに対して上下から当接可能な上下一対の水平面部が設けられ、これらの水平面部に貫通孔が形成されている。
即ち、上下一対の揺動連結部42A,42Aの夫々における上下一対の水平面部の夫々に貫通孔が形成され、これらの貫通孔の夫々は平面視で重複する。
One swing connecting portion 42A is provided with a pair of upper and lower horizontal plane portions capable of contacting the shaft core hole portion 44A or the shaft core hole portion 44B from above and below, and through holes are formed in these horizontal plane portions. ..
That is, through holes are formed in each of the pair of upper and lower horizontal plane portions in each of the pair of upper and lower swing connecting portions 42A and 42A, and each of these through holes overlaps in a plan view.

第二フレーム42における上側の揺動連結部42Aと軸芯孔部44Aとが当接可能である。また、第二フレーム42における下側の揺動連結部42Aと軸芯孔部44Bとが当接可能である。そしてこれらが当接した状態で、一対の揺動連結部42A,42Aにおける夫々の貫通孔と、上下一対の軸芯孔部44A,44Bにおける夫々の筒状の孔部と、が平面視で重複する。そして、これらの孔部を支点ピン46が貫通することによって、一対の揺動連結部42A,42Aと、上下一対の軸芯孔部44A,44Bと、が揺動可能に連結される。 The upper swing connecting portion 42A of the second frame 42 and the shaft core hole portion 44A can be in contact with each other. Further, the lower swing connecting portion 42A of the second frame 42 and the shaft core hole portion 44B can be in contact with each other. Then, in a state where they are in contact with each other, the through holes in the pair of rocking connecting portions 42A and 42A and the cylindrical holes in the pair of upper and lower shaft core hole portions 44A and 44B overlap each other in a plan view. do. Then, when the fulcrum pin 46 penetrates through these holes, the pair of swinging connecting portions 42A and 42A and the pair of upper and lower shaft core hole portions 44A and 44B are swingably connected.

支点ピン46の上端部に水平面が形成され、この水平面は支点ピン46の円柱部分よりも外側に延出する。そして、この水平面にボルト46aを挿通可能な孔が形成されている。この孔にボルト46aが挿通され、ボルト46aが揺動連結部42Aにボルト連結されることによって、支点ピン46と揺動連結部42Aとが連結される。これにより、上側の支点ピン46が揺動連結部42A及び軸芯孔部44Aに対して抜けないように連結固定され、下側の支点ピン46が揺動連結部42A及び軸芯孔部44Bに対して抜けないように連結固定される。 A horizontal plane is formed at the upper end of the fulcrum pin 46, and this horizontal plane extends outward from the cylindrical portion of the fulcrum pin 46. Then, a hole through which the bolt 46a can be inserted is formed in this horizontal plane. A bolt 46a is inserted through this hole, and the bolt 46a is bolted to the swing connecting portion 42A, whereby the fulcrum pin 46 and the swing connecting portion 42A are connected. As a result, the upper fulcrum pin 46 is connected and fixed to the swing connecting portion 42A and the shaft core hole portion 44A so as not to come off, and the lower fulcrum pin 46 is connected to the swing connecting portion 42A and the shaft core hole portion 44B. On the other hand, it is connected and fixed so that it will not come off.

図5及び図6に示されるように、係止支持部43に上下一対の係止部43A,43Bが設けられている。一対の係止部43A,43Bは正面視または背面視においてC字状に形成され、係止部43A,43Bの夫々に、上下に亘って貫通する貫通孔が形成されている。一対の係止部43A,43Bにおける夫々の貫通孔は平面視で重複した位置に形成され、フック部材45の棒状部分が上下方向に挿通可能なように一対の係止部43A,43Bは構成されている。 As shown in FIGS. 5 and 6, a pair of upper and lower locking portions 43A and 43B are provided on the locking support portion 43. The pair of locking portions 43A and 43B are formed in a C shape in front view or rear view, and through holes penetrating vertically are formed in each of the locking portions 43A and 43B. The through holes in the pair of locking portions 43A and 43B are formed at overlapping positions in a plan view, and the pair of locking portions 43A and 43B are configured so that the rod-shaped portion of the hook member 45 can be inserted in the vertical direction. ing.

下側の係止部43Bにおける上面部と下面部との間に中間面部43Cが形成されている。中間面部43Cにも貫通孔が形成され、フック部材45の棒状部分が中間面部43Cにおいても上下方向に挿通可能なように、係止部43Bは構成されている。係止部43Bにおける上面部と中間面部43Cとの間の空間に、上下向きのコイルバネ47と座金48とが上下に並んで挿入される。座金48はコイルバネ47の下方に配置されている。 An intermediate surface portion 43C is formed between the upper surface portion and the lower surface portion of the lower locking portion 43B. A through hole is also formed in the intermediate surface portion 43C, and the locking portion 43B is configured so that the rod-shaped portion of the hook member 45 can be inserted vertically in the intermediate surface portion 43C as well. The vertically facing coil spring 47 and the washer 48 are vertically inserted side by side in the space between the upper surface portion and the intermediate surface portion 43C in the locking portion 43B. The washer 48 is arranged below the coil spring 47.

U字状に形成された第二フレーム42における一対の第二上下向き支持棒のうちの機体前部の第二上下向き支持棒、即ち遊端部に上下一対の被係止部材42B,42Bが設けられている。即ち、一対の第二上下向き支持棒の他端側に、上下一対の係止部43A,43Bと対応可能な上下一対の被係止部材42B,42Bが設けられている。上下一対の被係止部材42B,42Bの夫々に、係止部43A,43Bの夫々の貫通孔と対応可能な貫通孔が形成されている。 Of the pair of second vertical support rods in the second frame 42 formed in a U shape, the second vertical support rod at the front of the machine, that is, the free end portion has a pair of upper and lower locked members 42B, 42B. It is provided. That is, on the other end side of the pair of second vertical support rods, a pair of upper and lower locked members 42B and 42B that can correspond to the pair of upper and lower locking portions 43A and 43B are provided. A through hole corresponding to the through hole of each of the locking portions 43A and 43B is formed in each of the upper and lower pairs of locked members 42B and 42B.

係止部43A,43Bの夫々の下面部のうち、機体横外側の端部に延出傾斜面が形成されている。これらの延出傾斜面は、機体横方向において、機体横外側ほど下方に傾斜する。第二フレーム42の遊端部が係止支持部43の位置する側に揺動されると、被係止部材42Bと係止支持部43とが当接する。このとき、揺動支持部44によって片持ち支持された第二フレーム42の撓みによって、第二フレーム42の遊端部が下方に変位することが考えられる。このとき、被係止部材42B,42Bも下方に変位するが、この場合であっても、係止部43A,43Bの夫々の下面部に形成された延出傾斜面と、被係止部材42B,42Bと、が当接する。そして、被係止部材42B,42Bが、これらの延出傾斜面によって第二フレーム42の遊端部と一体的に持ち上げられる。 Of the lower surface portions of the locking portions 43A and 43B, an extending inclined surface is formed at the end portion on the lateral outer side of the machine body. These extending inclined surfaces are inclined downward toward the lateral side of the aircraft in the lateral direction of the aircraft. When the free end portion of the second frame 42 is swung to the side where the locking support portion 43 is located, the locked member 42B and the locking support portion 43 come into contact with each other. At this time, it is conceivable that the free end portion of the second frame 42 is displaced downward due to the bending of the second frame 42 that is cantilevered and supported by the swing support portion 44. At this time, the locked members 42B and 42B are also displaced downward, but even in this case, the extended inclined surface formed on the lower surface of each of the locking portions 43A and 43B and the locked member 42B. , 42B come into contact with each other. Then, the locked members 42B and 42B are integrally lifted with the free end portion of the second frame 42 by these extending inclined surfaces.

これにより、係止部43Aにおける上面部と下面部との間の空間に上側の被係止部材42Bが挿入され、係止部43Bにおける中間面部43Cと下面部との間の空間に下側の被係止部材42Bが挿通される。この状態で、一対の係止部43A,43Bにおける夫々の貫通孔と、上下一対の被係止部材42B,42Bにおける夫々の貫通孔と、が平面視で重複する。そして、これらの貫通孔にフック部材45の棒状部分が上下方向に挿通されることによって、被係止部材42B,42Bが係止支持部43に係止される。 As a result, the upper locked member 42B is inserted into the space between the upper surface portion and the lower surface portion in the locking portion 43A, and the lower side is inserted into the space between the intermediate surface portion 43C and the lower surface portion in the locking portion 43B. The locked member 42B is inserted. In this state, the through holes in the pair of locking portions 43A and 43B and the through holes in the pair of upper and lower locked members 42B and 42B overlap each other in a plan view. Then, the rod-shaped portion of the hook member 45 is inserted into these through holes in the vertical direction, so that the locked members 42B and 42B are locked to the locking support portion 43.

このように、係止支持部43及び揺動支持部44が第一フレーム32の一対の第一上下向き支持棒の夫々に支持され、かつ、被係止部材42B,42Bが係止支持部43に係止された状態で、第二フレーム42は、係止支持部43及び揺動支持部44を介して第一フレーム32に支持される。つまり、第一フレーム32における一対の第一上下向き支持棒の一端側に、第二フレーム42における一対の第二上下向き支持棒の一端側が枢支連結される。また、第一フレーム32における一対の第一上下向き支持棒の他端側に、第二フレーム42における一対の第二上下向き支持棒の他端側を係止可能な係止支持部43が設けられている。第二フレーム42は第一フレーム32よりも機体横外側に位置し、第二フレーム42は第二予備苗載せ台41と一体的に機体横外側に揺動可能に構成されている。 In this way, the locking support portion 43 and the swing support portion 44 are supported by each of the pair of first vertical support rods of the first frame 32, and the locked members 42B and 42B are the locking support portions 43. The second frame 42 is supported by the first frame 32 via the locking support portion 43 and the swing support portion 44 in a state of being locked to the first frame 42. That is, one end side of the pair of second vertical support rods in the second frame 42 is pivotally connected to one end side of the pair of first vertical support rods in the first frame 32. Further, on the other end side of the pair of first vertical support rods in the first frame 32, a locking support portion 43 capable of locking the other end side of the pair of second vertical support rods in the second frame 42 is provided. Has been done. The second frame 42 is located on the lateral side of the machine body with respect to the first frame 32, and the second frame 42 is configured to be swingable laterally and laterally of the machine body integrally with the second spare seedling stand 41.

図1乃至図3に示されるように、被係止部材42B,42Bが係止支持部43に係止された状態で、第二予備苗載せ台41は第一予備苗載せ台31の真上に位置する。図4に示されるように、第二予備苗載せ台41が第二フレーム42とともに上下向き軸芯V回りに機体後側に揺動された状態で、第二予備苗載せ台41は第一予備苗載せ台31の真上に位置しない。第二予備苗載せ台41が第一予備苗載せ台31の真上に位置する構成によって、乗降用ステップ35の上方の空間が広く確保されるため、搭乗部25において搭乗者が乗降するときに、搭乗者が窮屈感を感じる虞が軽減される。また、第二予備苗載せ台41が機体後側に揺動された状態で、第二予備苗載せ台41は第一予備苗載せ台31の真上に位置しない。このため、第一予備苗載せ台31が折り畳まれたまま第二予備苗載せ台41に苗が載置された場合であっても、作業者は第二予備苗載せ台41に載置された苗を撤去せずに第一予備苗載せ台31を使用状態に広げられる。 As shown in FIGS. 1 to 3, the second preliminary seedling mounting table 41 is directly above the first preliminary seedling loading table 31 in a state where the locked members 42B and 42B are locked to the locking support portion 43. Located in. As shown in FIG. 4, the second spare seedling stand 41 is the first spare in a state where the second spare seedling stand 41 is swung toward the rear side of the machine body around the vertical axis V together with the second frame 42. It is not located directly above the seedling stand 31. When the passenger gets on and off at the boarding section 25, the space above the boarding / alighting step 35 is secured by the configuration in which the second spare seedling loading platform 41 is located directly above the first preliminary seedling loading platform 31. , The risk of the passenger feeling cramped is reduced. Further, the second spare seedling stand 41 is not located directly above the first spare seedling stand 31 in a state where the second spare seedling stand 41 is swung toward the rear side of the machine body. Therefore, even when the seedlings are placed on the second spare seedling stand 41 while the first spare seedling stand 31 is folded, the worker is placed on the second spare seedling stand 41. The first spare seedling stand 31 can be expanded to use without removing the seedlings.

乗用型田植機は、やや前傾姿勢であるため、係止支持部43が揺動支持部44よりも機体前側に位置する構成によって、係止支持部43の係止状態が解除されても、第二フレーム42及び第二予備苗載せ台41は、勝手に揺動し難い。また、第二フレーム42及び第二予備苗載せ台41は、係止支持部43の位置する側と反対側の揺動終端箇所への揺動において、機体前後方向において機体前後中心の位置する側へ揺動可能であり、かつ、機体左右方向において、機体左右中心の位置する側へ揺動可能である。このため、例えば作業者が、圃場作業機を保管する際に、第二フレーム42及び第二予備苗載せ台41を係止支持部43の位置する側と反対側の終端まで揺動することによって、圃場作業機の保管スペースをコンパクトにできる。このように、苗補給作業の容易さと、苗の収容量と、が両立された第一予備苗載せ台31及び第二予備苗載せ台41が実現される。 Since the passenger-type rice transplanter is in a slightly forward leaning posture, even if the locking support portion 43 is released from the locked state due to the configuration in which the locking support portion 43 is located on the front side of the machine body with respect to the rocking support portion 44. The second frame 42 and the second spare seedling stand 41 are difficult to swing freely. Further, the second frame 42 and the second spare seedling stand 41 are located on the side where the center of the front and rear of the machine is located in the front and rear direction of the machine when swinging to the swing end point on the side opposite to the side where the locking support portion 43 is located. It can swing to the side where the center of the left and right sides of the machine is located in the left and right direction of the machine. Therefore, for example, when the worker stores the field work machine, the second frame 42 and the second spare seedling stand 41 are swung to the end on the side opposite to the side where the locking support portion 43 is located. , The storage space of the field work machine can be made compact. In this way, the first preliminary seedling loading platform 31 and the second preliminary seedling loading platform 41 are realized in which the ease of seedling replenishment work and the storage capacity of seedlings are compatible.

図4乃至図6に示されるように、フック部材45の棒状部分において、コイルバネ47と座金48とに対応する領域のうちの下端領域に、スナップピン45aを挿通可能な挿通孔が形成されている。コイルバネ47と座金48とがこの挿通孔よりも上側に位置する状態で、スナップピン45aが挿通孔に挿通される。これにより、スナップピン45aと座金48とが当接し、フック部材45が上側にスライドすることに伴って、コイルバネ47と座金48とが上側に押し上げられる。コイルバネ47は係止部43Bの上面部と座金48とによって圧縮され、下方向の付勢力が座金48とスナップピン45aとに作用する。
これにより、フック部材45は下側へスライドするように付勢され、フック部材45の人為操作が行われなければ、フック部材45は、一対の係止部43A,43Bにおける夫々の貫通孔を貫通した状態に位置保持される。換言すると、フック部材45の人為操作が行われなければ、フック部材45は、揺動連結部42A,42Aにおける夫々の貫通孔を貫通可能な状態に位置保持される。
As shown in FIGS. 4 to 6, in the rod-shaped portion of the hook member 45, an insertion hole through which the snap pin 45a can be inserted is formed in the lower end region of the region corresponding to the coil spring 47 and the washer 48. .. The snap pin 45a is inserted into the insertion hole with the coil spring 47 and the washer 48 located above the insertion hole. As a result, the snap pin 45a and the washer 48 come into contact with each other, and as the hook member 45 slides upward, the coil spring 47 and the washer 48 are pushed upward. The coil spring 47 is compressed by the upper surface portion of the locking portion 43B and the washer 48, and a downward urging force acts on the washer 48 and the snap pin 45a.
As a result, the hook member 45 is urged to slide downward, and if the hook member 45 is not manually operated, the hook member 45 penetrates through the through holes in the pair of locking portions 43A and 43B, respectively. The position is held in the state of the hook. In other words, if the hook member 45 is not manually operated, the hook member 45 is held in a position capable of penetrating the through holes in the swing connecting portions 42A and 42A, respectively.

このように、フック部材45は、上下一対の係止部43A,43Bと、上下一対の被係止部材42B,42Bと、に鉤掛けられることによって、上下一対の係止部43A,43Bと上下一対の被係止部材42B,42Bとの係止状態を保持可能なように構成されている。 In this way, the hook member 45 is hooked on the pair of upper and lower locking portions 43A and 43B and the pair of upper and lower locked members 42B and 42B, so that the upper and lower pair of locking portions 43A and 43B and the upper and lower hook members 45 are hooked. It is configured to be able to hold the locked state with the pair of locked members 42B, 42B.

図4、図5及び図6に基づいて、第一フレーム32に対する係止支持部43の連結支持構造について説明する。係止支持部43のうち、第一フレーム32と連結される部分は平面視でU字状に形成され、係止支持部43が第一フレーム32に連結支持された状態で、係止支持部43におけるU字形状で囲まれた空間に第一フレーム32が挟まれる。係止支持部43におけるU字形状基端部に係止部43A,43Bが備えられ、このU字形状基端部から一対のU字形状先端部が揺動支持部44の位置する側に向かって延出する。係止支持部43のうち、U字形状基端部からU字形状先端部に向かって延出する一対の板状部材の上下中央箇所の夫々にボルト挿通孔が形成されている。更に、これら一対のボルト挿通孔のうち、機体横外側の箇所にナットが溶接固定されている。このような溶接固定されたナットを、以下『溶接ナット』と称する。 The connection support structure of the locking support portion 43 with respect to the first frame 32 will be described with reference to FIGS. 4, 5 and 6. Of the locking support portion 43, the portion connected to the first frame 32 is formed in a U shape in a plan view, and the locking support portion 43 is connected and supported by the first frame 32. The first frame 32 is sandwiched in the space surrounded by the U-shape in 43. Locking portions 43A and 43B are provided at the U-shaped base end portion of the locking support portion 43, and a pair of U-shaped tip portions are directed from the U-shaped base end portion toward the side where the swing support portion 44 is located. And postpone. In the locking support portion 43, bolt insertion holes are formed at the upper and lower center portions of the pair of plate-shaped members extending from the U-shaped base end portion toward the U-shaped tip portion. Further, among these pair of bolt insertion holes, nuts are welded and fixed at locations on the lateral outer side of the machine body. Such a nut fixed by welding is hereinafter referred to as a "welded nut".

図示はしないが、第一フレーム32における一対の第一上下向き支持棒のうちの前部の第一上下向き支持棒にボルト挿通孔が形成され、このボルト挿通孔は、この第一上下向き支持棒を機体横方向に亘って貫通する。この第一上下向き支持棒におけるボルト挿通孔と、係止支持部43の上下中央箇所におけるボルト挿通孔と、にボルト43Gが挿通され、ボルト43Gが機体横外側の溶接ナットと締結される。 Although not shown, a bolt insertion hole is formed in the first vertical support rod at the front of the pair of first vertical support rods in the first frame 32, and the bolt insertion hole is the first vertical support rod. Penetrate the rod in the lateral direction of the machine. The bolt 43G is inserted into the bolt insertion hole in the first vertical support rod and the bolt insertion hole at the upper and lower center points of the locking support portion 43, and the bolt 43G is fastened to the welding nut on the lateral side of the machine body.

係止支持部43において、上述した一対の板状部材のU字形状先端部における上下箇所は、この一対のU字形状先端部における上下中央箇所よりも揺動支持部44の位置する側へ膨出する。この上下の膨出箇所の夫々に一対のボルト挿通孔が形成され、更に、これらのボルト挿通孔のうち、機体横外側の箇所に溶接ナットが設けられている。この上下の膨出箇所の夫々における一対のボルト挿通孔に亘って筒型のスペーサ43E,43Eが挿入され、上下一対のスペーサ43E,43Eにおける筒内の空間の夫々にボルト43F,43Fが挿通される。そして、ボルト43F,43Fの夫々が機体横外側における上下の溶接ナットの夫々と締結される。上下一対のスペーサ43E,43Eによって、ボルト43F,43Fの過度な締め付けが防止され、一対のU字形状先端部の夫々の間隔がスペーサ43Eの間隔だけ保持される。 In the locking support portion 43, the upper and lower portions of the pair of plate-shaped members at the U-shaped tip portions bulge toward the position of the swing support portion 44 from the upper and lower center portions of the pair of U-shaped tip portions. Put out. A pair of bolt insertion holes are formed in each of the upper and lower bulging portions, and welding nuts are provided in the laterally outer portions of the machine body among these bolt insertion holes. Cylindrical spacers 43E and 43E are inserted over the pair of bolt insertion holes in the upper and lower bulging points, and bolts 43F and 43F are inserted into the spaces inside the cylinder in the pair of upper and lower spacers 43E and 43E. To. Then, the bolts 43F and 43F are fastened to the upper and lower welding nuts on the lateral outer side of the machine body, respectively. The pair of upper and lower spacers 43E and 43E prevent excessive tightening of the bolts 43F and 43F, and the spacing between the pair of U-shaped tips is maintained by the spacing of the spacers 43E.

このように、係止支持部43は、U字形状基端部から延出する一対のU字形状先端側の板状部材で第一フレーム32を挟む。これにより、係止支持部43は第一フレーム32に強固に連結支持される。 In this way, the locking support portion 43 sandwiches the first frame 32 with a pair of plate-shaped members extending from the U-shaped base end portion on the U-shaped tip end side. As a result, the locking support portion 43 is firmly connected and supported to the first frame 32.

図4、図5及び図7に基づいて、第一フレーム32に対する揺動支持部44の連結支持構造について説明する。揺動支持部44のうち、第一フレーム32と連結される部分は平面視でU字状に形成され、揺動支持部44が第一フレーム32に連結支持された状態で、揺動支持部44におけるU字形状で囲まれた空間に第一フレーム32が挟まれる。揺動支持部44におけるU字形状基端部に軸芯孔部44A,44Bが備えられ、一対のU字形状先端部が係止支持部43と対向する。揺動支持部44のうち、U字形状基端部からU字形状先端部に向かって延出する一対の板状部材の上下中央箇所の夫々にボルト挿通孔が形成されている。更に、これら一対のボルト挿通孔のうち、機体横外側の箇所に溶接ナットが設けられている。 A connection support structure of the swing support portion 44 with respect to the first frame 32 will be described with reference to FIGS. 4, 5 and 7. Of the swing support portion 44, the portion connected to the first frame 32 is formed in a U shape in a plan view, and the swing support portion 44 is connected and supported by the first frame 32. The first frame 32 is sandwiched in the space surrounded by the U-shape in 44. Axial core holes 44A and 44B are provided at the U-shaped base end portion of the swing support portion 44, and a pair of U-shaped tip portions face the locking support portion 43. In the swing support portion 44, bolt insertion holes are formed at the upper and lower center portions of the pair of plate-shaped members extending from the U-shaped base end portion toward the U-shaped tip portion. Further, among these pair of bolt insertion holes, welding nuts are provided at locations on the lateral outer side of the machine body.

図示はしないが、第一フレーム32における一対の第一上下向き支持棒のうちの後部の第一上下向き支持棒にボルト挿通孔が形成され、このボルト挿通孔は、この第一上下向き支持棒を機体横方向に亘って貫通する。この第一上下向き支持棒におけるボルト挿通孔と、揺動支持部44の上下中央箇所におけるボルト挿通孔と、にボルト44Eが挿通され、ボルト44Eが機体横外側の溶接ナットと締結される。 Although not shown, a bolt insertion hole is formed in the rear first vertical support rod of the pair of first vertical support rods in the first frame 32, and this bolt insertion hole is the first vertical support rod. Penetrates in the lateral direction of the aircraft. The bolt 44E is inserted into the bolt insertion hole in the first vertical support rod and the bolt insertion hole at the upper and lower center points of the swing support portion 44, and the bolt 44E is fastened to the welding nut on the lateral side of the machine body.

揺動支持部44において、上述した一対の板状部材のU字形状先端部における上下箇所は、この一対のU字形状先端部における上下中央箇所よりも係止支持部43の位置する側へ膨出する。この上下の膨出箇所の夫々に一対のボルト挿通孔が形成され、更に、これらのボルト挿通孔のうち、機体横外側の箇所に溶接ナットが設けられている。この上下の膨出箇所の夫々における一対のボルト挿通孔に亘って筒型のスペーサ44C,44Cが挿入され、上下一対のスペーサ44C,44Cにおける筒内の空間の夫々にボルト44D,44Dが挿通される。そして、ボルト44D,44Dの夫々が機体横外側における上下の溶接ナットの夫々と締結される。上下一対のスペーサ44C,44Cによって、ボルト44D,44Dの過度な締め付けが防止され、一対のU字形状先端部の夫々の間隔がスペーサ44Cの間隔だけ保持される。 In the swing support portion 44, the upper and lower portions of the pair of plate-shaped members at the U-shaped tip portions bulge toward the position of the locking support portion 43 from the upper and lower center portions of the pair of U-shaped tip portions. Put out. A pair of bolt insertion holes are formed in each of the upper and lower bulging portions, and welding nuts are provided in the laterally outer portions of the machine body among these bolt insertion holes. Cylindrical spacers 44C and 44C are inserted over the pair of bolt insertion holes in the upper and lower bulging points, and bolts 44D and 44D are inserted into the spaces in the cylinder in the pair of upper and lower spacers 44C and 44C. To. Then, the bolts 44D and 44D are fastened to the upper and lower welding nuts on the lateral outer side of the machine body, respectively. The pair of upper and lower spacers 44C, 44C prevents excessive tightening of the bolts 44D, 44D, and the spacing between the pair of U-shaped tips is maintained by the spacing of the spacers 44C.

このように、揺動支持部44は、U字形状基端部から延出する一対のU字形状先端側の板状部材で第一フレーム32を挟む。これにより、揺動支持部44は第一フレーム32に強固に連結支持される。 In this way, the swing support portion 44 sandwiches the first frame 32 with a pair of plate-shaped members on the tip side of the U-shape extending from the base end portion of the U-shape. As a result, the swing support portion 44 is firmly connected and supported to the first frame 32.

〔キャノピの構成について〕
図1、図3、図8乃至図10に示されるように、搭乗部25の上方にキャノピ50が備えられている。キャノピ50の前部における左右二箇所に、一対の揺動枢支部51,51が揺動可能に連結されている。連結部33の上部のうちの左右両端に一対の揺動枢支部51,51が外嵌する。これにより、キャノピ50は一対の揺動枢支部51,51回りに揺動可能なように構成されている。
[About the configuration of the canopy]
As shown in FIGS. 1, 3, 8 to 10, a canopy 50 is provided above the boarding section 25. A pair of swinging pivot branches 51, 51 are swingably connected to two left and right positions on the front portion of the canopy 50. A pair of swinging pivots 51, 51 are fitted on the left and right ends of the upper part of the connecting portion 33. As a result, the canopy 50 is configured to be able to swing around the pair of swing pivots 51, 51.

走行機体Cの後部における左右両端から一対の後支持部が立設されている。後支持部は第一支持部54Bと第二支持部54Aとを有する。左右一対の第一支持部54B及び第二支持部54Aは、乗降用ステップ35よりも機体後方、かつ、苗植付装置Wの左右両端部よりも機体内側に位置する。第一支持部54Bは走行機体Cの後部に立設される。これにより、キャノピ50は、搭乗部25の後部(または搭乗部25よりも後側)からもしっかりと支持された状態で、搭乗部25を上方から覆うことが可能となる。また、左右一対の第一支持部54B及び第二支持部54Aが苗植付装置Wの左右両端部よりも機体内側に位置する。このため、第一支持部54B及び第二支持部54Aが苗植付装置Wの左右両端部よりも機体外側に位置する構成と比較して、第一支持部54B及び第二支持部54Aが圃場の障害物等に接触する虞が軽減される。 A pair of rear support portions are erected from the left and right ends of the rear portion of the traveling machine body C. The rear support portion has a first support portion 54B and a second support portion 54A. The pair of left and right first support portions 54B and second support portions 54A are located behind the machine body from the boarding / alighting step 35 and inside the machine body from the left and right ends of the seedling planting device W. The first support portion 54B is erected at the rear portion of the traveling machine body C. As a result, the canopy 50 can cover the boarding section 25 from above while being firmly supported from the rear portion of the boarding section 25 (or behind the boarding section 25). Further, a pair of left and right first support portions 54B and second support portions 54A are located inside the machine body from the left and right ends of the seedling planting device W. Therefore, the first support portion 54B and the second support portion 54A are in the field as compared with the configuration in which the first support portion 54B and the second support portion 54A are located outside the machine body from the left and right ends of the seedling planting device W. The risk of contact with obstacles and the like is reduced.

第二支持部54Aは、第一支持部54Bの上方に延出可能に構成されるとともに第一支持部54Bに対する高さ位置を変更可能に構成されている。第一支持部54Bの上端部に保持機構55が設けられ、保持機構55は第二支持部54Aを位置保持可能なように構成されている。第二支持部54Aと第一支持部54Bとの夫々は保持機構55を介して上下に延びる状態に連結される。これにより、第二支持部54Aは上端の上下高さを変更可能に構成されている。 The second support portion 54A is configured to extend above the first support portion 54B and is configured to be able to change the height position with respect to the first support portion 54B. A holding mechanism 55 is provided at the upper end of the first support portion 54B, and the holding mechanism 55 is configured to be able to hold the position of the second support portion 54A. The second support portion 54A and the first support portion 54B are connected to each other in a state of extending vertically via a holding mechanism 55. As a result, the second support portion 54A is configured so that the vertical height of the upper end can be changed.

キャノピ50の後部寄りの領域における左右端部の夫々に一対の被係止部材53,53が連結され、キャノピ50における被係止部材53の箇所が第二支持部54Aに支持される。一対の第一支持部54B,54Bは、機体横方向において、乗降用ステップ35よりも機体横外側に設けられている。保持機構55の上下高さは、苗植付装置Wが最も上昇した場合の苗植付装置Wの上端部よりも低く位置する。このため、作業者が苗植付装置Wに対して作業を行う場合であっても、保持機構55が作業者にとって作業の邪魔になり難い。 A pair of locked members 53, 53 are connected to each of the left and right ends in the region near the rear of the canopy 50, and the portion of the locked member 53 in the canopy 50 is supported by the second support portion 54A. The pair of first support portions 54B and 54B are provided on the lateral side of the aircraft with respect to the boarding / alighting step 35 in the lateral direction of the aircraft. The vertical height of the holding mechanism 55 is lower than the upper end of the seedling planting device W when the seedling planting device W is raised to the maximum. Therefore, even when the worker works on the seedling planting device W, the holding mechanism 55 does not easily interfere with the work for the worker.

このように、キャノピ50は、連結部33に支持されるとともに、一対の第二支持部54Aに載置支持され、搭乗部25を上方から覆う。また、連結部33は、キャノピ50の支持構造と衛星測位ユニット34の支持構造とに兼用される。 In this way, the canopy 50 is supported by the connecting portion 33 and mounted and supported by the pair of second supporting portions 54A, and covers the boarding portion 25 from above. Further, the connecting portion 33 is also used as a support structure for the canopy 50 and a support structure for the satellite positioning unit 34.

キャノピ50は、左右一対の前外枠フレーム50A,50Bと、後外枠フレーム50Cと、前横フレーム50Dと、後横フレーム50Eと、第一前後フレーム50Fと、三つの第二前後フレーム50G,50G,50Gと、を有する。前外枠フレーム50Aは機体左側に設けられ、前外枠フレーム50Bは機体右側に設けられている。これらのフレームは、金属で構成されても良いし、例えばポリ塩化ビニル等の樹脂で構成されても良い。 The canopy 50 includes a pair of left and right front outer frame frames 50A and 50B, a rear outer frame frame 50C, a front horizontal frame 50D, a rear horizontal frame 50E, a first front and rear frame 50F, and three second front and rear frames 50G. It has 50G and 50G. The front outer frame frame 50A is provided on the left side of the machine body, and the front outer frame frame 50B is provided on the right side of the machine body. These frames may be made of metal or may be made of a resin such as polyvinyl chloride.

前外枠フレーム50A,50Bと、後外枠フレーム50Cと、の夫々は曲げ形成された棒状部材であって、夫々の断面における大きさや形状は同じまたは略同じとなるように形成されている。前外枠フレーム50A,50Bは平面視で左右対称に形成されている。前外枠フレーム50A,50Bの夫々のパイプ終端部のうち、機体前側の終端部が互いに対向し、この終端部同士が不図示の嵌合部材を介して互いに連結されている。前外枠フレーム50A,50Bの夫々は、この連結箇所から機体横外側かつ機体後側に延出し、前外枠フレーム50A,50Bの夫々における機体後側の終端部は機体後方に向けられる。 The front outer frame frames 50A and 50B and the rear outer frame frame 50C are rod-shaped members formed by bending, and are formed so as to have the same or substantially the same size and shape in each cross section. The front outer frame frames 50A and 50B are formed symmetrically in a plan view. Of the pipe end portions of the front outer frame frames 50A and 50B, the end portions on the front side of the machine body face each other, and the end portions are connected to each other via a fitting member (not shown). Each of the front outer frame frames 50A and 50B extends laterally to the lateral side of the fuselage and to the rear side of the fuselage from this connecting portion, and the end portions of the front outer frame frames 50A and 50B on the rear side of the fuselage are directed to the rear of the fuselage.

後外枠フレーム50Cは平面視でU字状に曲げ形成され、このU字形状の棒状部材における夫々の終端部は機体前方に向けられる。前外枠フレーム50Aと後外枠フレーム50Cとの夫々のパイプ終端部同士は、嵌合部材52を介して互いに連結されている。また、前外枠フレーム50Bと後外枠フレーム50Cとの夫々のパイプ終端部同士は、嵌合部材52を介して互いに連結されている。機体左側の嵌合部材52は、前外枠フレーム50Aの機体後側の終端部に後方から外嵌するとともに、後外枠フレーム50Cの機体左側の終端部に前方から外嵌する。機体右側の嵌合部材52は、前外枠フレーム50Bの機体後側の終端部に後方から外嵌するとともに、後外枠フレーム50Cの機体右側の終端部に前方から外嵌する。このように、左右対称の前外枠フレーム50A,50Bと、後外枠フレーム50Cと、によってキャノピ50の外枠が形成される。 The rear outer frame frame 50C is bent and formed in a U shape in a plan view, and the end portions of the U-shaped rod-shaped members are directed toward the front of the machine body. The pipe end portions of the front outer frame frame 50A and the rear outer frame frame 50C are connected to each other via a fitting member 52. Further, the pipe end portions of the front outer frame frame 50B and the rear outer frame frame 50C are connected to each other via the fitting member 52. The fitting member 52 on the left side of the machine body is fitted from the rear to the end portion on the rear side of the machine body of the front outer frame frame 50A, and is fitted from the front to the end portion on the left side of the machine body of the rear outer frame frame 50C. The fitting member 52 on the right side of the machine is fitted from the rear to the end of the front outer frame 50B on the rear side of the machine, and is fitted to the end of the rear outer frame 50C on the right side of the machine from the front. In this way, the symmetrical front outer frame frames 50A and 50B and the rear outer frame frame 50C form the outer frame of the canopy 50.

なお、前外枠フレーム50A,50Bの夫々と嵌合部材52とが一体的に構成されても良いし、後外枠フレーム50Cと左右の嵌合部材52,52とが一体的に構成されても良い。また、前外枠フレーム50A,50Bの夫々が、後外枠フレーム50Cに対して伸縮可能に構成されても良い。 The front outer frame frames 50A and 50B may be integrally configured with the fitting member 52, or the rear outer frame frame 50C and the left and right fitting members 52 and 52 may be integrally configured. Is also good. Further, the front outer frame frames 50A and 50B may be configured to be expandable and contractible with respect to the rear outer frame frame 50C.

前横フレーム50Dと、後横フレーム50Eとの夫々は、キャノピ50の外枠よりも内側において機体横方向に延びる棒状部材である。前横フレーム50Dの両端は、前外枠フレーム50A,50Bの夫々の前後方向中間箇所と連結される。後横フレーム50Eの両端は、後外枠フレーム50CにおけるU字形状の前方延出領域の夫々の前後方向中間箇所と連結される。 Each of the front horizontal frame 50D and the rear horizontal frame 50E is a rod-shaped member extending in the lateral direction of the machine body inside the outer frame of the canopy 50. Both ends of the front horizontal frame 50D are connected to the front-rear intermediate points of the front outer frame frames 50A and 50B, respectively. Both ends of the rear lateral frame 50E are connected to the respective intermediate portions in the front-rear direction of the U-shaped forward extending region in the rear outer frame frame 50C.

第一前後フレーム50Fは前後方向に延びる棒状部材である。第一前後フレーム50Fの両端は、前外枠フレーム50Aと前外枠フレーム50Bとの連結箇所と、前横フレーム50Dの長手方向中間箇所と、の夫々と連結される。第一前後フレーム50Fにミラー57が支持される。ミラー57は搭乗者が走行機体Cの後方を確認するために用いられ、搭乗者は機体前方を向きながらミラー57を介して機体後方を確認できる。 The first front-rear frame 50F is a rod-shaped member extending in the front-rear direction. Both ends of the first front and rear frame 50F are connected to a connection portion between the front outer frame frame 50A and the front outer frame frame 50B and a longitudinal intermediate portion of the front horizontal frame 50D, respectively. The mirror 57 is supported on the first front and rear frame 50F. The mirror 57 is used by the passenger to check the rear of the traveling aircraft C, and the passenger can confirm the rear of the aircraft through the mirror 57 while facing the front of the aircraft.

第二前後フレーム50Gは前後方向に延びる棒状部材であって、第二前後フレーム50Gの断面は、前外枠フレーム50A,50Bの断面や、後外枠フレーム50Cの断面よりも小さくなるように形成されている。三つの第二前後フレーム50G,50G,50Gの夫々が機体横方向に並んで配置されている。三つの第二前後フレーム50G,50G,50Gの夫々の両端部は、前横フレーム50Dと、後外枠フレーム50Cの後端箇所と、の夫々と連結される。 The second front-rear frame 50G is a rod-shaped member extending in the front-rear direction, and the cross section of the second front-rear frame 50G is formed so as to be smaller than the cross sections of the front outer frame frames 50A and 50B and the cross section of the rear outer frame frame 50C. Has been done. The three second front and rear frames 50G, 50G, and 50G are arranged side by side in the lateral direction of the fuselage. Both ends of each of the three second front and rear frames 50G, 50G, and 50G are connected to the front horizontal frame 50D and the rear end portion of the rear outer frame frame 50C, respectively.

そして、キャノピ50の外枠よりも内側において、可撓性を有する幌58が上方から覆い被せられることによって、キャノピ50は搭乗部25を覆う。なお、図3及び図8では幌58が示されていないが、図3及び図8でも実際に幌58は存在する。幌58は、キャノピ50の外枠や、前横フレーム50D、後横フレーム50E、第一前後フレーム50F、第二前後フレーム50Gよりも上側から搭乗部25を覆う。キャノピ50の前端部は、ボンネット12の傾斜面の上端部よりも前側に位置する。このため、キャノピ50の前端部から雨水が滴り落ちる場合であっても、その雨水はボンネット12の上に落ちて傾斜面に沿って前方に滑り落ち、搭乗部25における操向ハンドル27や操向ハンドル27よりも前側の各種メータ機器類に雨水が滴り落ちる虞が軽減される。 Then, inside the outer frame of the canopy 50, the flexible hood 58 is covered from above, so that the canopy 50 covers the boarding portion 25. Although the hood 58 is not shown in FIGS. 3 and 8, the hood 58 actually exists in FIGS. 3 and 8. The hood 58 covers the boarding portion 25 from above the outer frame of the canopy 50, the front horizontal frame 50D, the rear horizontal frame 50E, the first front / rear frame 50F, and the second front / rear frame 50G. The front end portion of the canopy 50 is located in front of the upper end portion of the inclined surface of the bonnet 12. Therefore, even if rainwater drips from the front end of the canopy 50, the rainwater falls on the bonnet 12 and slides forward along the inclined surface, and the steering handle 27 and steering at the boarding section 25 are steered. The risk of rainwater dripping onto various meter devices on the front side of the handle 27 is reduced.

左右一対の揺動枢支部51,51は、前外枠フレーム50Aと前外枠フレーム50Aとの夫々と連結される。一対の揺動枢支部51,51は連結部33の上部のうちの左右両端に位置し、一対の揺動枢支部51,51の間に衛星測位ユニット34が配置されている。
本実施形態では、前外枠フレーム50A,50Bの前側終端部、即ち前外枠フレーム50Aと前外枠フレーム50Bとの連結箇所は、前外枠フレーム50A,50Bの前後方向の前端部よりも後側に位置する。つまり、前外枠フレーム50A,50Bの前後方向の前端部は、前後方向において衛星測位ユニット34と重複する。このため、キャノピ50が一対の揺動枢支部51,51回りに揺動すると、前外枠フレーム50A,50Bと衛星測位ユニット34とが干渉する虞がある。この不都合を回避するため、前外枠フレーム50Aと前外枠フレーム50Bとの連結箇所は、前外枠フレーム50A,50Bの前後方向の前端部よりも後側に位置するように、前外枠フレーム50A,50Bは構成されている。これにより、キャノピ50の前端部における左右中央箇所に凹入空間Sが形成され、衛星測位ユニット34の後部が凹入空間Sに位置する。この構成であれば、キャノピ50が一対の揺動枢支部51,51回りに揺動しても、前外枠フレーム50Aと前外枠フレーム50Bとの連結箇所は、衛星測位ユニット34よりも後方で揺動する。このため、前外枠フレーム50A,50Bと衛星測位ユニット34との干渉が回避される。
The pair of left and right swing pivots 51, 51 are connected to the front outer frame frame 50A and the front outer frame frame 50A, respectively. The pair of swinging pivots 51 and 51 are located at both left and right ends of the upper part of the connecting portion 33, and the satellite positioning unit 34 is arranged between the pair of swinging pivots 51 and 51.
In the present embodiment, the front end portion of the front outer frame frames 50A and 50B, that is, the connection portion between the front outer frame frame 50A and the front outer frame frame 50B is more than the front end portion in the front-rear direction of the front outer frame frames 50A and 50B. Located on the rear side. That is, the front end portions of the front outer frame frames 50A and 50B in the front-rear direction overlap with the satellite positioning unit 34 in the front-rear direction. Therefore, if the canopy 50 swings around the pair of swing pivots 51, 51, there is a possibility that the front outer frame frames 50A, 50B and the satellite positioning unit 34 interfere with each other. In order to avoid this inconvenience, the connection point between the front outer frame frame 50A and the front outer frame frame 50B is located behind the front end portions of the front outer frame frames 50A and 50B in the front-rear direction. The frames 50A and 50B are configured. As a result, a recessed space S is formed at the center of the left and right at the front end of the canopy 50, and the rear portion of the satellite positioning unit 34 is located in the recessed space S. With this configuration, even if the canopy 50 swings around the pair of swing pivots 51, 51, the connection point between the front outer frame frame 50A and the front outer frame frame 50B is behind the satellite positioning unit 34. Swing with. Therefore, interference between the front outer frame frames 50A and 50B and the satellite positioning unit 34 is avoided.

機体左側の被係止部材53は、後外枠フレーム50Cの機体左側部における嵌合部材52の位置する側寄りの下側箇所に溶接固定されている。また、機体右側の被係止部材53は、後外枠フレーム50Cの機体右側部における嵌合部材52の位置する側寄りの下側箇所に溶接固定されている。つまり、被係止部材53はキャノピ50に対して下方に連結されている。このように、左右一対の被係止部材53,53は、後外枠フレーム50CのU字形状における前方延出領域の夫々の前後方向中間箇所と連結される。 The locked member 53 on the left side of the machine body is welded and fixed to a lower portion on the left side of the machine body of the rear outer frame frame 50C, which is closer to the side where the fitting member 52 is located. Further, the locked member 53 on the right side of the machine body is welded and fixed to a lower portion on the right side of the machine body of the rear outer frame frame 50C, which is closer to the side where the fitting member 52 is located. That is, the locked member 53 is connected downward to the canopy 50. In this way, the pair of left and right locked members 53, 53 are connected to the respective intermediate portions in the front-rear direction of the front extending region in the U-shape of the rear outer frame frame 50C.

図1、図3、図9及び図10に示されるように、キャノピ50の高さは複数の段階に調整可能なように構成されている。具体的に、第一支持部54Bの上端部に保持機構55が設けられ、第二支持部54Aの長手方向に沿って三つの係合突起部54C,54D,54Eが並んで設けられている。つまり、三つの係合突起部54C,54D,54Eの夫々は、第二支持部54Aにおいて夫々異なる高さで第二支持部54Aの表面から突起する。保持機構55は、平面視において機体横内側が開口するU字状に形成され、このU字形状の機体横内側端部に係合凹部55kが形成されている。係合凹部55kと、係合突起部54C,54D,54Eの夫々と、は係合可能であって、係合突起部54C,54D,54Eの何れが係合凹部55kと係合するかによって、キャノピ50の上下高さが変化する。このように、第二支持部54Aに、第二支持部54Aの長手方向に並ぶ状態で第二支持部54Aの表面から突起する複数の係合突起部54C,54D,54Eが設けられ、保持機構55に、係合突起部54C,54D,54Eと係合可能な係合凹部55kが形成されている。 As shown in FIGS. 1, 3, 9 and 10, the height of the canopy 50 is configured to be adjustable in multiple stages. Specifically, a holding mechanism 55 is provided at the upper end of the first support portion 54B, and three engaging protrusions 54C, 54D, 54E are provided side by side along the longitudinal direction of the second support portion 54A. That is, each of the three engaging protrusions 54C, 54D, and 54E protrudes from the surface of the second support portion 54A at different heights in the second support portion 54A. The holding mechanism 55 is formed in a U-shape in which the lateral inner side of the machine body opens in a plan view, and an engaging recess 55k is formed at the lateral inner end portion of the U-shaped machine body. The engaging recess 55k and the engaging protrusions 54C, 54D, 54E can be engaged with each other, depending on which of the engaging protrusions 54C, 54D, 54E engages with the engaging recess 55k. The vertical height of the canopy 50 changes. In this way, the second support portion 54A is provided with a plurality of engaging protrusions 54C, 54D, 54E protruding from the surface of the second support portion 54A in a state of being lined up in the longitudinal direction of the second support portion 54A, and a holding mechanism is provided. An engaging recess 55k that can be engaged with the engaging protrusions 54C, 54D, 54E is formed in the 55.

図1に示された実施形態では、係合突起部54Cと係合凹部55kとが係合する。この状態でキャノピ50は後側ほど後上がりに傾斜する。このときのキャノピ50の上端部の上下高さは、衛星測位ユニット34の上端部よりも高く位置する。これにより、搭乗者が搭乗座席26から起立して苗載せ台22に対してマット状苗の補給作業を行ったりする場合、搭乗者の作業空間が確保され易い。つまり、図1に示されたキャノピ50の上下高さであれば、搭乗部25に搭乗した搭乗者の農作業は可能である。本実施形態では、この位置を『作業位置』と称する。 In the embodiment shown in FIG. 1, the engaging protrusion 54C and the engaging recess 55k engage with each other. In this state, the canopy 50 inclines backward toward the rear side. The vertical height of the upper end portion of the canopy 50 at this time is located higher than the upper end portion of the satellite positioning unit 34. As a result, when the occupant stands up from the boarding seat 26 and replenishes the mat-shaped seedlings to the seedling pedestal 22, it is easy to secure the occupant's work space. That is, if the height of the canopy 50 shown in FIG. 1 is the vertical height, the passengers who board the boarding section 25 can perform farm work. In this embodiment, this position is referred to as a "working position".

キャノピ50の上下高さが作業位置に設定されている場合、キャノピ50は後上がりに傾斜する。また、上述したように、キャノピ50の前端部は、ボンネット12の後上がり傾斜面の上端部よりも前側に位置する。このため、雨水がキャノピ50の上に降った場合でも、その雨水はキャノピ50の前端部に案内されてキャノピ50の前端部からボンネット12の後上がり傾斜面に滴り落ちる。 When the vertical height of the canopy 50 is set to the working position, the canopy 50 tilts backward. Further, as described above, the front end portion of the canopy 50 is located on the front side of the upper end portion of the rear rising inclined surface of the bonnet 12. Therefore, even when rainwater falls on the canopy 50, the rainwater is guided to the front end portion of the canopy 50 and drips from the front end portion of the canopy 50 onto the rear rising inclined surface of the bonnet 12.

キャノピ50が後上がりに傾斜する状態で、キャノピ50の上端部はキャノピ50の後端部である。そして、キャノピ50の前端部はキャノピ50の揺動基端部である。このため、キャノピ50が上下揺動しても、キャノピ50の前端部の上下高さは、キャノピ50の後端部の上下高さと比較して殆ど変化しない。つまり、キャノピ50の前端部と衛星測位ユニット34との相対的な上下位置の変化量は、キャノピ50の後端部と衛星測位ユニット34との相対的な上下位置の変化量よりも小さい。キャノピ50の後端部は、キャノピ50の中で衛星測位ユニット34から最も離れた箇所であるため、衛星測位ユニット34の測位精度が確保されつつ、上下方向における搭乗者の作業空間が確保される。 The upper end of the canopy 50 is the rear end of the canopy 50 with the canopy 50 tilted backwards. The front end portion of the canopy 50 is the swing base end portion of the canopy 50. Therefore, even if the canopy 50 swings up and down, the vertical height of the front end portion of the canopy 50 hardly changes as compared with the vertical height of the rear end portion of the canopy 50. That is, the amount of change in the relative vertical position between the front end of the canopy 50 and the satellite positioning unit 34 is smaller than the amount of change in the relative vertical position between the rear end of the canopy 50 and the satellite positioning unit 34. Since the rear end of the canopy 50 is the farthest point from the satellite positioning unit 34 in the canopy 50, the positioning accuracy of the satellite positioning unit 34 is ensured, and the work space of the passenger in the vertical direction is secured. ..

図9に示された実施形態では、係合突起部54Dと係合凹部55kとが係合する。この状態でキャノピ50は前後方向において水平または略水平となる。このときのキャノピ50の上端部の上下高さは、衛星測位ユニット34の上端部よりも低く位置する。このため、図9に示されたキャノピ50の上下高さであれば、キャノピ50が上述した作業位置よりも低く位置しながらも、搭乗部25に搭乗した搭乗者の農作業は可能である。また、キャノピ50の上端部の上下高さが衛星測位ユニット34の上端部よりも低く位置する構成であるため、キャノピ50の上下高さが作業位置に設定されている場合よりも、衛星測位ユニット34の測位精度が十分に確保され易い。本実施形態では、この位置を『簡易収納位置』と称する。 In the embodiment shown in FIG. 9, the engaging protrusion 54D and the engaging recess 55k engage with each other. In this state, the canopy 50 becomes horizontal or substantially horizontal in the front-rear direction. The vertical height of the upper end of the canopy 50 at this time is lower than that of the upper end of the satellite positioning unit 34. Therefore, if the height of the canopy 50 shown in FIG. 9 is the vertical height, the passengers who board the boarding section 25 can perform farm work while the canopy 50 is located lower than the above-mentioned working position. Further, since the vertical height of the upper end of the canopy 50 is lower than that of the upper end of the satellite positioning unit 34, the satellite positioning unit is more than the case where the vertical height of the canopy 50 is set to the working position. It is easy to sufficiently secure the positioning accuracy of 34. In this embodiment, this position is referred to as a "simple storage position".

図10に示された実施形態では、連結部33が下側に揺動され、衛星測位ユニット34は第一フレーム32の上端部よりも下側に位置する。この状態で、係合突起部54Eと係合凹部55kとが係合するとともに、キャノピ50は後側ほど後上がりに傾斜する。そして、キャノピ50の上端部の上下高さは、衛星測位ユニット34の上端部よりも高く位置する。このときのキャノピ50の上下高さでは、搭乗部25に搭乗した搭乗者の農作業は不能である。本実施形態では、この位置を『収納位置』と称する。 In the embodiment shown in FIG. 10, the connecting portion 33 is swung downward, and the satellite positioning unit 34 is located below the upper end portion of the first frame 32. In this state, the engaging protrusion 54E and the engaging recess 55k are engaged with each other, and the canopy 50 is inclined backward toward the rear side. The vertical height of the upper end of the canopy 50 is higher than that of the upper end of the satellite positioning unit 34. At the vertical height of the canopy 50 at this time, it is impossible for the passengers who boarded the boarding section 25 to carry out farm work. In this embodiment, this position is referred to as a "storage position".

このように、キャノピ50は、第二支持部54Aの上端の上下高さを変更することによって、搭乗部25に搭乗した搭乗者が農作業を可能な上下高さである作業位置と、搭乗部25に搭乗した搭乗者が作業可能な上下高さであるとともに作業位置よりも低く位置する簡易収納位置と、簡易収納位置よりも低く位置する収納位置と、に切換可能に構成されている。 In this way, the canopy 50 has a working position that is a vertical height at which the passengers boarding the boarding section 25 can perform farm work by changing the vertical height of the upper end of the second support portion 54A, and the boarding section 25. It is configured to be switchable between a simple storage position that is vertically high enough for the passengers on board to work and is located lower than the work position, and a storage position that is lower than the simple storage position.

〔キャノピの保持機構について〕
図1、図3、図11及び図12に示されるように、第二支持部54Aは、保持機構55によって支持されている。保持機構55は、U字形状の第一係止ピン55Aと、スライド部材55Bと、スナップピン55Cと、を有する。また、第一係止ピン55Aに、第一貫通孔55dと、第二貫通孔55eと、突起部55f,55fと、が形成されている。第一係止ピン55Aは保持機構55の支持孔55jに沿って機体前後方向にスライド可能に構成され、第一係止ピン55AのU字形状両端に、第一貫通孔55dと先端部55gとが位置する。第一係止ピン55Aのうちの第一貫通孔55dと先端部55gとが位置する端部は機体後方を向いているが、第一貫通孔55dと先端部55gとが位置する端部は機体前方を向くように、第一係止ピン55Aが構成されても良い。第一係止ピン55AのU字形状両端の間の長手方向中間箇所は、機体前後方向において支持孔55jを挟んでU字形状両端とは反対側に位置する。突起部55f,55fは支持孔55jよりも機体前側に位置し、支持孔55jの内径よりも外径側に突起する。スライド部材55Bは支持孔55jよりも機体後側において第一係止ピン55Aに外嵌する。
[About the canopy holding mechanism]
As shown in FIGS. 1, 3, 11 and 12, the second support portion 54A is supported by the holding mechanism 55. The holding mechanism 55 has a U-shaped first locking pin 55A, a slide member 55B, and a snap pin 55C. Further, a first through hole 55d, a second through hole 55e, and protrusions 55f and 55f are formed on the first locking pin 55A. The first locking pin 55A is configured to be slidable in the front-rear direction of the machine along the support hole 55j of the holding mechanism 55, and has a first through hole 55d and a tip portion 55g at both ends of the U-shape of the first locking pin 55A. Is located. The end of the first locking pin 55A where the first through hole 55d and the tip 55g are located faces the rear of the machine, but the end where the first through hole 55d and the tip 55g are located is the machine. The first locking pin 55A may be configured to face forward. The intermediate portion in the longitudinal direction between both ends of the U-shape of the first locking pin 55A is located on the side opposite to both ends of the U-shape with the support hole 55j interposed therebetween in the front-rear direction of the machine body. The protrusions 55f and 55f are located on the front side of the machine body with respect to the support holes 55j, and project to the outer diameter side with respect to the inner diameter of the support holes 55j. The slide member 55B is fitted onto the first locking pin 55A on the rear side of the machine body with respect to the support hole 55j.

保持機構55に貫通孔55iが形成されている。また、第二支持部54Aに、三つの貫通孔54f,54g,54hが形成されている。貫通孔54fは係合突起部54Cの真上に位置し、貫通孔54gは係合突起部54Dの真上に位置し、貫通孔54hは係合突起部54Eの真上に位置する。 A through hole 55i is formed in the holding mechanism 55. Further, three through holes 54f, 54g, 54h are formed in the second support portion 54A. The through hole 54f is located directly above the engaging protrusion 54C, the through hole 54g is located directly above the engaging protrusion 54D, and the through hole 54h is located directly above the engaging protrusion 54E.

係合突起部54Cと係合凹部55kとが係合した状態で、貫通孔55iと貫通孔54fとが前後方向視で重なり合う。この状態で、作業者が貫通孔55iと貫通孔54fとに第一係止ピン55Aの先端部55gを挿通することによって、第一係止ピン55Aは第二支持部54Aを係止可能となる。 With the engaging protrusion 54C and the engaging recess 55k engaged, the through hole 55i and the through hole 54f overlap each other in the front-rear direction. In this state, the operator inserts the tip portion 55g of the first locking pin 55A into the through hole 55i and the through hole 54f, so that the first locking pin 55A can lock the second support portion 54A. ..

係合突起部54Dと係合凹部55kとが係合した状態で、貫通孔55iと貫通孔54gとが前後方向視で重なり合う。この状態で、作業者が貫通孔55iと貫通孔54gとに第一係止ピン55Aの先端部55gを挿通することによって、第一係止ピン55Aは第二支持部54Aを係止可能となる。 With the engaging protrusion 54D and the engaging recess 55k engaged, the through hole 55i and the through hole 54g overlap each other in the front-rear direction. In this state, the operator inserts the tip portion 55g of the first locking pin 55A into the through hole 55i and the through hole 54g, so that the first locking pin 55A can lock the second support portion 54A. ..

係合突起部54Eと係合凹部55kとが係合した状態で、貫通孔55iと貫通孔54hとが前後方向視で重なり合う。この状態で、作業者が貫通孔55iと貫通孔54hとに第一係止ピン55Aの先端部55gを挿通することによって、第一係止ピン55Aは第二支持部54Aを係止可能となる。 With the engaging protrusion 54E and the engaging recess 55k engaged, the through hole 55i and the through hole 54h overlap each other in the front-rear direction. In this state, the operator inserts the tip portion 55g of the first locking pin 55A into the through hole 55i and the through hole 54h, so that the first locking pin 55A can lock the second support portion 54A. ..

貫通孔54f,54g,54hの何れかと、貫通孔55iと、に第一係止ピン55Aが挿通された状態で、作業者がスライド部材55Bを第二貫通孔55eよりも支持孔55jの位置する側にスライドさせ、第二貫通孔55eにスナップピン55Cを挿通する。これにより、スライド部材55Bのスライドがスナップピン55Cによって規制され、第一係止ピン55Aのスライドがスライド部材55Bと突起部55f,55fとによって規制される。この構成によって、先端部55gが貫通孔55iと貫通孔54fとから抜けなくなり、第二支持部54Aが第一係止ピン55Aに係止される。このように、保持機構55と第二支持部54Aとの夫々に、第一係止ピン55Aが貫通可能な貫通孔54f,54g,54h,55iが形成されている。 With the first locking pin 55A inserted through any of the through holes 54f, 54g, 54h and the through holes 55i, the operator positions the slide member 55B at the support hole 55j rather than the second through hole 55e. Slide it to the side and insert the snap pin 55C into the second through hole 55e. As a result, the slide of the slide member 55B is restricted by the snap pin 55C, and the slide of the first locking pin 55A is restricted by the slide member 55B and the protrusions 55f and 55f. With this configuration, the tip portion 55g cannot be removed from the through hole 55i and the through hole 54f, and the second support portion 54A is locked to the first locking pin 55A. As described above, through holes 54f, 54g, 54h, 55i through which the first locking pin 55A can penetrate are formed in each of the holding mechanism 55 and the second support portion 54A.

第二支持部54Aが第一係止ピン55Aに係止された状態で、作業者が、第二貫通孔55eからスナップピン55Cを外して第一貫通孔55dにスナップピン55Cを挿入すると、スライド部材55Bは、支持孔55jと当接する箇所と、第一貫通孔55dに挿入されたスナップピン55Cと当接する箇所と、の間の領域でスライド可能である。これに伴って、第一係止ピン55Aは、支持孔55jと突起部55f,55fとが当接する箇所と、スライド部材55Bが支持孔55jと第一貫通孔55dに挿入されたスナップピン55Cとに挟まれる箇所と、の間の領域に亘って前後方向にスライド可能となる。このため、突起部55f,55fが支持孔55jから離れる側に第一係止ピン55Aがスライドすることによって、先端部55gが貫通孔55iと貫通孔54fとから抜け、第二支持部54Aに対する第一係止ピン55Aの係止状態は解除される。なお、第一貫通孔55dには別体のスナップピンが予め挿通され、作業者が第二貫通孔55eからスナップピン55Cを外すのみの構成でも良い。 With the second support portion 54A locked to the first locking pin 55A, when the operator removes the snap pin 55C from the second through hole 55e and inserts the snap pin 55C into the first through hole 55d, it slides. The member 55B is slidable in a region between a portion that abuts the support hole 55j and a portion that abuts the snap pin 55C inserted in the first through hole 55d. Along with this, the first locking pin 55A includes a portion where the support hole 55j and the protrusions 55f and 55f come into contact with each other, and a snap pin 55C in which the slide member 55B is inserted into the support hole 55j and the first through hole 55d. It is possible to slide in the front-back direction over the area between the part sandwiched between the two. Therefore, when the first locking pin 55A slides to the side where the protrusions 55f and 55f are separated from the support hole 55j, the tip end portion 55g comes out of the through hole 55i and the through hole 54f, and the second support portion 54A is separated from the through hole 55i. The locked state of one locking pin 55A is released. A separate snap pin may be inserted into the first through hole 55d in advance, and the operator may simply remove the snap pin 55C from the second through hole 55e.

〔キャノピの係止機構について〕
図3、図13及び図14に示されるように、第二支持部54Aの上端部にキャノピ50を係止可能な係止機構56が備えられ、キャノピ50に、係止機構56と係合可能な被係止部材53が設けられている。第二支持部54Aの上端部は上向きから機体横内側向きに曲げ形成されている。詳述はしないが、第二支持部54Aにおける、この機体横内側向きの端部に、係止機構56が横向き軸芯回りに揺動可能に支持される。
[About the locking mechanism of the canopy]
As shown in FIGS. 3, 13 and 14, a locking mechanism 56 capable of locking the canopy 50 is provided at the upper end of the second support portion 54A, and the canopy 50 can be engaged with the locking mechanism 56. A locked member 53 is provided. The upper end portion of the second support portion 54A is formed by bending from upward to the laterally inward direction of the machine body. Although not described in detail, the locking mechanism 56 is swingably supported around the lateral axis center at the laterally inwardly facing end portion of the second support portion 54A.

係止機構56は、U字形状の第二係止ピン56Aと、スライド部材56Bと、スナップピン56Cと、を有する。また、第二係止ピン56Aに、第一貫通孔56dと、第二貫通孔56eと、突起部56f,56fと、が形成されている。第二係止ピン56Aは係止機構56の支持孔55jに沿って機体前後方向にスライド可能に構成され、第二係止ピン56AのU字形状両端に、第一貫通孔56dと先端部56gとが位置する。第二係止ピン56Aのうちの第一貫通孔56dと先端部56gとが位置する端部は機体横外方を向いているが、第一貫通孔56dと先端部56gとが位置する端部は機体横内方を向くように、第二係止ピン56Aが構成されても良い。第二係止ピン56AのU字形状両端の間の長手方向中間箇所は、機体前後方向において支持孔56jを挟んでU字形状両端とは反対側に位置する。突起部56f,56fは支持孔56jよりも機体前側に位置し、支持孔56jの内径よりも外径側に突起する。スライド部材56Bは支持孔56jよりも機体後側において第二係止ピン56Aに外嵌する。 The locking mechanism 56 has a U-shaped second locking pin 56A, a slide member 56B, and a snap pin 56C. Further, the first through hole 56d, the second through hole 56e, and the protrusions 56f and 56f are formed on the second locking pin 56A. The second locking pin 56A is configured to be slidable in the front-rear direction of the machine along the support hole 55j of the locking mechanism 56, and the first through hole 56d and the tip portion 56g are formed at both ends of the U-shape of the second locking pin 56A. And are located. The end of the second locking pin 56A where the first through hole 56d and the tip portion 56g are located faces laterally outward of the machine body, but the end portion where the first through hole 56d and the tip portion 56g are located is located. The second locking pin 56A may be configured so as to face laterally inward of the machine body. The intermediate portion in the longitudinal direction between both ends of the U-shape of the second locking pin 56A is located on the side opposite to both ends of the U-shape with the support hole 56j interposed therebetween in the front-rear direction of the machine body. The protrusions 56f and 56f are located on the front side of the machine body with respect to the support holes 56j, and project to the outer diameter side with respect to the inner diameter of the support holes 56j. The slide member 56B is fitted onto the second locking pin 56A on the rear side of the machine body with respect to the support hole 56j.

係止機構56は、前後方向視において、上方が開放されたU字状に形成されている。つまり、係止機構56に凹部が形成され、この凹部は、上下方向にU字状に凹入するとともに被係止部材53を載置支持可能なように構成されている。 The locking mechanism 56 is formed in a U shape with the upper side open in the front-rear direction view. That is, a recess is formed in the locking mechanism 56, and the recess is configured to be recessed in a U shape in the vertical direction and to be able to mount and support the locked member 53.

係止機構56に貫通孔56iが形成されている。また、被係止部材53に、貫通孔53iが形成されている。被係止部材53が係止機構56に載置支持された状態で、貫通孔56iと貫通孔53iとが側面視で重なり合う。この状態で、作業者が貫通孔56iと貫通孔53iとに第二係止ピン56Aの先端部56gを挿通することによって、第二係止ピン56Aは被係止部材53を係止可能となる。 A through hole 56i is formed in the locking mechanism 56. Further, a through hole 53i is formed in the locked member 53. In a state where the locked member 53 is placed and supported by the locking mechanism 56, the through hole 56i and the through hole 53i overlap each other in a side view. In this state, when the operator inserts the tip portion 56g of the second locking pin 56A into the through hole 56i and the through hole 53i, the second locking pin 56A can lock the locked member 53. ..

貫通孔53iと、貫通孔56iと、に第二係止ピン56Aが挿通された状態で、作業者がスライド部材56Bを第二貫通孔56eよりも支持孔56jの位置する側にスライドさせ、第二貫通孔56eにスナップピン56Cを挿通する。これにより、スライド部材56Bのスライドがスナップピン56Cによって規制され、第二係止ピン56Aのスライドがスライド部材56Bと突起部56f,56fとによって規制される。この構成によって、先端部56gが貫通孔56iと貫通孔53iとから抜けなくなり、被係止部材53が第二係止ピン56Aに係止される。このように、係止機構56と被係止部材53との夫々に、第二係止ピン56Aが貫通可能な貫通孔53i,56iが形成されている。 With the second locking pin 56A inserted through the through hole 53i and the through hole 56i, the operator slides the slide member 56B from the second through hole 56e to the side where the support hole 56j is located, and the second locking pin 56A is inserted. (2) The snap pin 56C is inserted through the through hole 56e. As a result, the slide of the slide member 56B is restricted by the snap pin 56C, and the slide of the second locking pin 56A is restricted by the slide member 56B and the protrusions 56f and 56f. With this configuration, the tip portion 56g is prevented from coming out of the through hole 56i and the through hole 53i, and the locked member 53 is locked to the second locking pin 56A. In this way, through holes 53i and 56i through which the second locking pin 56A can penetrate are formed in the locking mechanism 56 and the locked member 53, respectively.

被係止部材53が第二係止ピン56Aに係止された状態で、作業者が、第二貫通孔56eからスナップピン56Cを外して第一貫通孔56dにスナップピン56Cを挿入すると、スライド部材56Bは、支持孔56jと当接する箇所と、第一貫通孔56dに挿入されたスナップピン56Cと当接する箇所と、の間の領域でスライド可能である。これに伴って、第二係止ピン56Aは、支持孔56jと突起部56f,56fとが当接する箇所と、スライド部材56Bが支持孔56jと第一貫通孔56dに挿入されたスナップピン56Cとに挟まれる箇所と、の間の領域に亘って機体横方向にスライド可能となる。このため、突起部56f,56fが支持孔56jから離れる側に第二係止ピン56Aがスライドすることによって、先端部56gが貫通孔56iと貫通孔53iとから抜け、被係止部材53に対する第二係止ピン56Aの係止状態は解除される。なお、第一貫通孔56dには別体のスナップピンが予め挿通され、作業者が第二貫通孔56eからスナップピン56Cを外すのみの構成でも良い。 With the locked member 53 locked to the second locking pin 56A, when the operator removes the snap pin 56C from the second through hole 56e and inserts the snap pin 56C into the first through hole 56d, the slide is made. The member 56B is slidable in a region between a portion that abuts the support hole 56j and a portion that abuts the snap pin 56C inserted in the first through hole 56d. Along with this, the second locking pin 56A includes a portion where the support hole 56j and the protrusions 56f and 56f come into contact with each other, and a snap pin 56C in which the slide member 56B is inserted into the support hole 56j and the first through hole 56d. It is possible to slide laterally over the area between the part sandwiched between the two. Therefore, the second locking pin 56A slides to the side where the protrusions 56f and 56f are separated from the support hole 56j, so that the tip portion 56g comes out of the through hole 56i and the through hole 53i, and the second locking pin 56 with respect to the locked member 53. The locked state of the second locking pin 56A is released. A separate snap pin may be inserted into the first through hole 56d in advance, and the operator may simply remove the snap pin 56C from the second through hole 56e.

キャノピ50の上下高さが作業位置または簡易収納位置に位置する状態で、被係止部材53は係止機構56の真上に位置する。このため、被係止部材53が係止機構56に凹部に入り込み、被係止部材53は係止機構56に載置支持される。この状態で、貫通孔53iと、貫通孔56iと、に第二係止ピン56Aが挿通されることによって、被係止部材53と係止機構56とが一体連結される。これにより、キャノピ50は上下揺動できなくなり、キャノピ50が風に煽られてもキャノピ50の上下高さがしっかりと保持される。 The locked member 53 is located directly above the locking mechanism 56 in a state where the vertical height of the canopy 50 is located at the working position or the simple storage position. Therefore, the locked member 53 enters the recess in the locking mechanism 56, and the locked member 53 is placed and supported on the locking mechanism 56. In this state, the locked member 53 and the locking mechanism 56 are integrally connected by inserting the second locking pin 56A into the through hole 53i and the through hole 56i. As a result, the canopy 50 cannot swing up and down, and even if the canopy 50 is blown by the wind, the vertical height of the canopy 50 is firmly maintained.

キャノピ50の上下高さが収納位置に位置する状態で、被係止部材53の位置は係止機構56よりも機体後側にずれる。このため、係止機構56の凹部には、被係止部材53ではなくて後外枠フレーム50Cの前部または嵌合部材52が入り込み、後外枠フレーム50Cが係止機構56に載置支持される。この状態では、第二係止ピン56Aは被係止部材53を係止できなくなるが、天井の低い納屋等に保管される場合にはキャノピ50が風に煽られることが殆どないため、単に後外枠フレーム50Cが係止機構56に載置支持される構成で十分である。なお、キャノピ50の上下高さが収納位置に位置する状態であっても、第二係止ピン56Aは被係止部材53を係止可能な構成であっても良い。この場合、例えば被係止部材53が後外枠フレーム50Cに対してスライド可能に構成されても良い。 With the vertical height of the canopy 50 located at the storage position, the position of the locked member 53 shifts to the rear side of the machine body from the locking mechanism 56. Therefore, the front portion of the rear outer frame frame 50C or the fitting member 52 is inserted into the recess of the locking mechanism 56 instead of the locked member 53, and the rear outer frame frame 50C is mounted and supported on the locking mechanism 56. Will be done. In this state, the second locking pin 56A cannot lock the locked member 53, but when it is stored in a barn with a low ceiling, the canopy 50 is hardly fanned by the wind, so it is simply rearranged. It is sufficient that the outer frame frame 50C is mounted and supported on the locking mechanism 56. Even when the vertical height of the canopy 50 is located at the storage position, the second locking pin 56A may be configured to be able to lock the locked member 53. In this case, for example, the locked member 53 may be configured to be slidable with respect to the rear outer frame frame 50C.

〔別実施形態〕
本発明は、上記の実施形態に例示された構成に限定されるものではなく、以下、本発明の代表的な別実施形態を例示する。
[Another Embodiment]
The present invention is not limited to the configurations exemplified in the above-described embodiments, and the following, typical alternative embodiments of the present invention will be exemplified.

(1)上述した実施形態において、予備苗台ユニット40が上下向き軸芯V回りに揺動可能に構成されているが、この実施形態に限定されない。例えば、予備苗台ユニット40が前後方向または機体横方向にスライド可能に構成されても良い。つまり、第二予備苗載せ台41が、第一予備苗載せ台31の真上に位置する状態と、第一予備苗載せ台31の真上に位置しない状態と、に切換可能な構成であれば良い。 (1) In the above-described embodiment, the spare seedling stand unit 40 is configured to be swingable around the vertical axis V, but is not limited to this embodiment. For example, the spare nursery unit 40 may be configured to be slidable in the front-rear direction or the lateral direction of the machine body. That is, the configuration can be switched between a state in which the second preliminary seedling loading platform 41 is located directly above the first preliminary seedling loading platform 31 and a state in which the second preliminary seedling loading platform 41 is not located directly above the first preliminary seedling loading platform 31. It's fine.

(2)上述した実施形態において、係止支持部43は第一フレーム32の一対の第一上下向き支持棒のうちの前部の第一上下向き支持棒に支持され、揺動支持部44は後部の第一上下向き支持棒に支持されるが、この実施形態に限定されない。第二予備苗載せ台41は、上下向き軸芯回りに揺動可能なように構成されて良い。このため、例えば、係止支持部43は後部の第一上下向き支持棒に支持され、揺動支持部44は前部の第一上下向き支持棒に支持される構成であっても良い。つまり、一対の第一上下向き支持棒の一端側に、第二フレーム42における一対の第二上下向き支持棒の一端側が枢支連結され、一対の第一上下向き支持棒の他端側に、一対の第二上下向き支持棒の他端側を係止可能な係止支持部が設けられて良い。 (2) In the above-described embodiment, the locking support portion 43 is supported by the first vertical support rod at the front of the pair of first vertical support rods of the first frame 32, and the swing support portion 44 is supported by the first vertical support rod. It is supported by the first vertical support rod at the rear, but is not limited to this embodiment. The second spare seedling stand 41 may be configured so as to be swingable around the vertical axis. Therefore, for example, the locking support portion 43 may be supported by the first vertical support rod at the rear portion, and the swing support portion 44 may be supported by the first vertical support rod at the front portion. That is, one end side of the pair of second vertical support rods in the second frame 42 is pivotally connected to one end side of the pair of first vertical support rods, and the other end side of the pair of first vertical support rods. A locking support portion that can lock the other end side of the pair of second vertical support rods may be provided.

(3)上述した実施形態において、第二予備苗載せ台41は第二フレーム42に支持されているが、この実施形態に限定されない。例えば、第二予備苗載せ台41は第二フレーム42に対して上下向き軸芯回りに揺動可能に枢支されても良く、第二フレーム42が設けられない構成であっても良い。つまり、第二予備苗載せ台41は、上下向き軸芯回りに揺動可能なように構成されて良い。 (3) In the above-described embodiment, the second preliminary seedling mounting table 41 is supported by the second frame 42, but the present invention is not limited to this embodiment. For example, the second spare seedling stand 41 may be pivotally supported with respect to the second frame 42 so as to be swingable around the axis in the vertical direction, or may have a configuration in which the second frame 42 is not provided. That is, the second spare seedling mounting table 41 may be configured so as to be swingable around the vertical axis.

(4)上述した実施形態において、係止支持部43にフック部材45が設けられているが、係止支持部43にフック部材45が設けられない構成であっても良い。この場合、第二予備苗載せ台41または第二フレーム42が、係止支持部43にボルト固定される構成であっても良い。また、そもそも係止支持部43が設けられず、第二予備苗載せ台41や第二フレーム42が揺動自在な構成であっても良い。 (4) In the above-described embodiment, the hook member 45 is provided on the locking support portion 43, but the hook member 45 may not be provided on the locking support portion 43. In this case, the second spare seedling mounting table 41 or the second frame 42 may be bolted to the locking support portion 43. Further, the locking support portion 43 may not be provided in the first place, and the second preliminary seedling mounting table 41 and the second frame 42 may be configured to be swingable.

(5)上述した実施形態に示された係止支持部43は、第二予備苗載せ台41が第一予備苗載せ台31の真上に位置しない状態を保持するために用いられても良い。また、係止支持部43が設けられず、例えば第一フレーム32と第二フレーム42との間に死点機構が介在し、第二予備苗載せ台41が、第一予備苗載せ台31の真上に位置する状態と、第一予備苗載せ台31の真上に位置しない状態と、の夫々に揺動するように付勢される構成であっても良い。これにより、第二予備苗載せ台41は、第一予備苗載せ台31の真上に位置する状態と、第一予備苗載せ台31の真上に位置しない状態と、の夫々に保持可能となる。 (5) The locking support portion 43 shown in the above-described embodiment may be used to maintain a state in which the second preliminary seedling mounting table 41 is not located directly above the first preliminary seedling loading table 31. .. Further, the locking support portion 43 is not provided, for example, a dead center mechanism is interposed between the first frame 32 and the second frame 42, and the second preliminary seedling mounting table 41 is the first preliminary seedling loading table 31. It may be configured to be urged to swing in a state where it is located directly above and a state where it is not located directly above the first preliminary seedling mounting table 31. As a result, the second preliminary seedling loading platform 41 can be held in a state where it is located directly above the first preliminary seedling loading platform 31 and in a state where it is not located directly above the first preliminary seedling loading platform 31. Become.

(6)上述した実施形態に示された第一フレーム32は、第一予備苗載せ台31や第二フレーム42の支持以外にも使用可能である。例えば、第一フレーム32と第一支持部54Bとに亘って着脱可能な横架部材が設けられる構成であっても良い。そして、この着脱可能な横架部材が搭乗部25の左右夫々に設けられ、搭乗部25の左右における柵として用いられる構成であっても良い。この横架部材は、例えばチェーンやゴムで構成されても良く、例えば乗用型田植機をトラックで輸送する際に、横架部材の一端をトラックの荷台に固定可能な構成であっても良い。 (6) The first frame 32 shown in the above-described embodiment can be used for other than the support of the first preliminary seedling stand 31 and the second frame 42. For example, a structure may be provided in which a detachable horizontal member is provided over the first frame 32 and the first support portion 54B. The detachable horizontal member may be provided on each of the left and right sides of the boarding section 25 and may be used as a fence on the left and right sides of the boarding section 25. The horizontal member may be made of, for example, a chain or rubber, or may have a structure in which one end of the horizontal member can be fixed to the truck bed when, for example, a passenger-type rice transplanter is transported by truck.

(7)上述した実施形態に示された第一予備苗載せ台31は、前後中央に折り畳むことによって折り畳み状態に切換可能に構成されているが、この実施形態に限定されない。例えば、第一予備苗載せ台31は、前部または後部に折り畳まれる構成であっても良い。 (7) The first preliminary seedling loading table 31 shown in the above-described embodiment is configured to be switchable to a folded state by being folded in the center of the front and back, but is not limited to this embodiment. For example, the first spare seedling stand 31 may be configured to be folded forward or rearward.

なお、上述の実施形態(別実施形態を含む、以下同じ)で開示される構成は、矛盾が生じない限り、他の実施形態で開示される構成と組み合わせて適用することが可能である。
また、本明細書において開示された実施形態は例示であって、本発明の実施形態はこれに限定されず、本発明の目的を逸脱しない範囲内で適宜改変することが可能である。
The configuration disclosed in the above embodiment (including another embodiment, the same shall apply hereinafter) can be applied in combination with the configuration disclosed in other embodiments as long as there is no contradiction.
Moreover, the embodiment disclosed in the present specification is an example, and the embodiment of the present invention is not limited to this, and can be appropriately modified without departing from the object of the present invention.

本発明は、予備苗載せ台を有する乗用型田植機に適用可能である。 The present invention is applicable to a passenger-type rice transplanter having a spare seedling stand.

31 :第一予備苗載せ台
32 :第一フレーム
41 :第二予備苗載せ台
42 :第二フレーム
42B :被係止部材
43 :係止支持部
43A :係止部
43B :係止部
45 :フック部材
C :走行機体
V :上下向き軸芯
W :苗植付装置
31: First spare seedling mounting table 32: First frame 41: Second preliminary seedling loading table 42: Second frame 42B: Locked member 43: Locking support part 43A: Locking part 43B: Locking part 45: Hook member C: Traveling machine V: Vertical axis W: Seedling planting device

Claims (3)

圃場を走行可能な走行機体と、
前記走行機体の後部に支持連結されるとともに苗を圃場に植え付け可能な苗植付装置と、
前記走行機体の前部に支持されるとともに、前後方向に延ばして苗を載置可能な使用状態と、折り畳んで苗を載置不能な折り畳み状態と、に切換可能な第一予備苗載せ台と、
前記第一予備苗載せ台の上方に配置されるとともに、前記第一予備苗載せ台の真上に位置する状態と、前記第一予備苗載せ台の真上に位置しない状態と、に切換可能な第二予備苗載せ台と、
前記第一予備苗載せ台を支持する第一フレームと、
前記第二予備苗載せ台を支持する第二フレームと、が備えられ、
前記第二フレームは前記第一フレームに支持され、
前記第一フレームに一対の第一上下向き支持棒が形成され、
前記第二フレームに一対の第二上下向き支持棒が形成され、
前記一対の第一上下向き支持棒の一方に、前記一対の第二上下向き支持棒の一方が枢支連結され、
前記一対の第一上下向き支持棒の他方に、前記一対の第二上下向き支持棒の他方を係止可能な係止支持部が設けられている乗用型田植機。
A traveling machine that can run in the field and
A seedling planting device that is supported and connected to the rear part of the traveling machine and can plant seedlings in the field.
A first spare seedling stand that is supported by the front part of the traveling machine and can be switched between a use state in which seedlings can be placed by extending it in the front-rear direction and a folded state in which seedlings cannot be placed by folding. ,
It is placed above the first spare seedling stand and can be switched between a state where it is located directly above the first spare seedling stand and a state where it is not located directly above the first spare seedling stand. Second spare seedling stand and
The first frame that supports the first spare seedling stand and
A second frame for supporting the second spare seedling stand is provided.
The second frame is supported by the first frame and
A pair of first vertical support rods are formed on the first frame, and a pair of first vertical support rods is formed.
A pair of second vertical support rods are formed on the second frame, and a pair of second vertical support rods is formed.
One of the pair of second vertical support rods is pivotally connected to one of the pair of first vertical support rods.
A passenger-type rice transplanter provided with a locking support portion capable of locking the other of the pair of second vertical support rods to the other of the pair of first vertical support rods .
前記第二予備苗載せ台は、上下向き軸芯回りに揺動可能なように構成されている請求項1に記載の乗用型田植機。 The passenger-type rice transplanter according to claim 1, wherein the second spare seedling stand is configured to swing around a vertical axis. 前記係止支持部に上下一対の係止部が設けられ、
前記一対の第二上下向き支持棒の他方に、前記上下一対の係止部と対応可能な上下一対の被係止部材が設けられ、
前記上下一対の係止部と、前記上下一対の被係止部材と、に鉤掛けられることによって、前記上下一対の係止部と前記上下一対の被係止部材との係止状態を保持可能なフック部材が備えられている請求項1または2に記載の乗用型田植機。
A pair of upper and lower locking portions are provided on the locking support portion, and the locking support portion is provided with a pair of upper and lower locking portions.
On the other side of the pair of second vertical support rods, a pair of upper and lower locked members corresponding to the pair of upper and lower locking portions are provided.
By hooking the pair of upper and lower locking portions and the pair of upper and lower locked members, the locked state of the pair of upper and lower locking portions and the pair of upper and lower locked members can be maintained. The passenger-type rice transplanter according to claim 1 or 2 , which is provided with a hook member.
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Citations (3)

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Publication number Priority date Publication date Assignee Title
JP2001204212A (en) 2000-01-24 2001-07-31 Iseki & Co Ltd Seedling transplanter
JP2017063681A (en) 2015-09-29 2017-04-06 株式会社クボタ Rice transplanter
JP2017121218A (en) 2016-01-08 2017-07-13 株式会社クボタ Riding rice planting machine

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JPS58152825U (en) * 1982-04-07 1983-10-13 株式会社クボタ Riding rice transplanter
JPH0432021Y2 (en) * 1986-10-14 1992-07-31

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Publication number Priority date Publication date Assignee Title
JP2001204212A (en) 2000-01-24 2001-07-31 Iseki & Co Ltd Seedling transplanter
JP2017063681A (en) 2015-09-29 2017-04-06 株式会社クボタ Rice transplanter
JP2017121218A (en) 2016-01-08 2017-07-13 株式会社クボタ Riding rice planting machine

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