JPH11275968A - Separator for stacked seedling box - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a separator for stacked seedling boxes designed to simply and rapidly take out and separate the stacked seedling boxes from the one in the topmost stage one by one. SOLUTION: This separator for stacked seedling boxes is obtained by installing a pawl holding unit 96 in a relatively and vertically movable holding frame to stacked seedling boxes N, pivoting a pair of hooking pawls 97 for hooking the opposite sides of each seedling box N on the pawl holding unit 96 and further installing pawl posture controlling means 98 for upwardly shaking the hooking pawls 97 and making the hooking pawls 97 escape when relatively lowering the hooking pawls 97 from the upper side to the peripheral edges Na on the opposite sides of the seedling box N in the stacking topmost stage and maintaining the hooking pawls 97 in the nearly horizontal posture and hooking the peripheral edges Na when relatively lifting the hooking pawls 97 from the lower side in the pawl holding unit 96.

Description

【発明の詳細な説明】DETAILED DESCRIPTION OF THE INVENTION

【０００１】[0001]

【発明の属する技術分野】本発明は、積み重ね苗箱を１
枚ずつ分離させるための積み重ね苗箱分離装置に関す
る。BACKGROUND OF THE INVENTION The present invention relates to a stacking seedling box.
The present invention relates to a stacked seedling box separation device for separating sheets one by one.

【０００２】[0002]

【従来の技術】稲や野菜の育苗作業では、播種機で播種
した苗箱を多数枚積み重ねてトロッコ台車等に載せ、そ
のまま緑化室に運搬して緑化させ、発芽後に苗箱をハウ
ス（硬化ハウス）内に運搬して、数百〜千枚単位で並べ
て緑化及び／又は硬化処理をしている。この場合の発芽
後の苗箱は、運搬効率を上げるために多数枚積み重ねら
れたままであり、ハウス内への展開は人為的に行われ
る。2. Description of the Related Art In the seedling raising work of rice and vegetables, a large number of seedling boxes sown by a seeding machine are stacked, placed on a truck, transported to a greening room as they are, and greened. After germination, the seedling boxes are housed (cured house). ), And are greened and / or cured by arranging several hundred to 1,000 sheets. In this case, the seedling boxes after germination are still stacked in a large number in order to increase the transportation efficiency, and the seedling boxes are artificially deployed in the house.

【０００３】また、前記トロッコ台車から苗箱自動棚差
装置を使って緑化台車に移し、この緑化台車で緑化室に
運搬して緑化させ、硬化ハウス内に運搬する方法もあ
る。この場合の苗箱自動棚差装置は、多数枚の積み重ね
苗箱を昇降機構で一旦持ち上げ、下から２番目以上の苗
箱をストッパで受持し、最下位の苗箱を下降して搬送
し、これをエレベータで持ち上げて棚に差す構成となっ
ている。[0003] There is also a method in which the trolley truck is transferred to a greening cart using an automatic seedling box automatic shelf difference device, transported to a greening room by this greening cart, greened, and transported in a hardening house. In this case, the seedling box automatic shelf difference device lifts a large number of stacked seedling boxes once by the elevating mechanism, receives the second or more seedling boxes from below with the stopper, and lowers and transports the lowest seedling box. This is lifted by an elevator and inserted into a shelf.

【０００４】[0004]

【発明が解決しようとする課題】苗箱の展開・回収を狭
い敷地内で能率よく行うために機械化する技術の開発が
要望されている。多数枚積み重ね苗箱は分離してコンベ
ヤ等に移載する必要があるが、前記苗箱自動棚差装置は
大きすぎて苗箱を自動的に展開する装置には搭載し難
く、また、積み重ね苗箱を最下位から抜き取るため、分
離の行程・動作が複雑でかつ１サイクルに時間がかか
り、苗箱の自動展開には適用し難いものである。There is a need for the development of a mechanization technique for efficiently deploying and collecting seedling boxes in a narrow site. It is necessary to separate a large number of seedling boxes and transfer them to a conveyor or the like, but the seedling box automatic shelf difference device is too large to be mounted on a device that automatically unfolds seedling boxes. Since the box is extracted from the bottom, the separation process and operation are complicated and it takes a long time for one cycle, and it is difficult to apply the method to the automatic deployment of the seedling box.

【０００５】本発明は、積み重ねられた苗箱を最上段の
ものから１枚ずつ簡単かつ迅速に取って分離していくこ
とができるようにした積み重ね苗箱分離装置を提供する
ことを目的とする。[0005] It is an object of the present invention to provide a stacked seedling box separating apparatus that can easily and quickly take out and separate the stacked seedling boxes one by one from the uppermost one. .

【０００６】[0006]

【課題を解決するための手段】本発明における課題解決
のための第１の具体的手段は、積み重ね苗箱Ｎに対して
相対上下動する保持枠９２に爪保持体９６を設け、この
爪保持体９６に苗箱Ｎの対辺を引っ掛ける掛け爪９７を
一対枢支し、この掛け爪９７を積み重ね最上段の苗箱Ｎ
の対辺の周縁Ｎａに対して上から相対下降するときに上
向き揺動して逃がしかつ下から相対上昇するときに略水
平姿勢に維持して周縁Ｎａに引っ掛ける爪姿勢制御手段
９８を前記爪保持体９６に設けていることである。A first concrete means for solving the problem in the present invention is to provide a claw holder 96 on a holding frame 92 which moves up and down relative to the stacked seedling boxes N, A pair of hooks 97 for hooking the opposite side of the seedling box N to the body 96 are pivotally supported.
The claw holder controls the claw posture control means 98 to swing upward and escape when relatively descending from above with respect to the periphery Na of the opposite side, and to maintain a substantially horizontal posture and to hook on the periphery Na when relatively rising from below. 96.

【０００７】これによって、保持枠９２を相対昇降する
だけで、掛け爪９７が退避状態から略水平姿勢になっ
て、積み重ね苗箱Ｎの最上段のものを引っ掛けて、他の
積み重ね苗箱Ｎから迅速に分離する。本発明における課
題解決のための第２の具体的手段は、第１の具体的手段
に加えて、前記保持枠９２を積み重ね苗箱Ｎを内部に収
める支持フレーム８６に昇降自在に設け、掛け爪９７を
積み重ね最上段の苗箱Ｎの対辺の周縁Ｎａより下方まで
下降した後に上昇させて苗箱Ｎを引っ掛けて持ち上げる
べく、保持枠９２を昇降させる昇降手段９３を設けてい
ることである。As a result, only by relatively moving the holding frame 92 up and down, the hanging claws 97 are brought into a substantially horizontal posture from the retracted state, and the uppermost one of the stacked seedling boxes N is hooked, so that the other stacked seedling boxes N Separate quickly. A second specific means for solving the problem in the present invention is that, in addition to the first specific means, the holding frame 92 is provided on a support frame 86 for stacking the seedling boxes N therein so as to be able to move up and down freely. The lifting means 93 for raising and lowering the holding frame 92 is provided so that the stack 97 is lowered to below the peripheral edge Na of the opposite side of the uppermost seedling box N and then raised to hook the seedling box N.

【０００８】これによって、積み重ね苗箱Ｎを昇降する
ことなく、保持枠９２を昇降手段９３で昇降させるだけ
の単純な動作で、掛け爪９７に迅速な苗箱引っ掛け動作
をさせる。本発明における課題解決のための第３の具体
的手段は、第２の具体的手段に加えて、支持フレーム８
６は前後及び左右に４枚を多段に積み重ねた苗箱Ｎを収
納し、保持枠９２は前後及び左右４枚の苗箱Ｎを同時に
引っ掛ける爪保持体９６及び掛け爪９７を有することで
ある。[0008] Thus, the holding claw 97 can be quickly hooked on the hook 97 by a simple operation of raising and lowering the holding frame 92 by the lifting means 93 without raising and lowering the stacked seedling boxes N. A third specific means for solving the problem in the present invention is that, in addition to the second specific means, a support frame 8 is provided.
Numeral 6 is for accommodating a seedling box N in which four sheets are stacked in front and back and left and right in multiple stages, and the holding frame 92 has a claw holder 96 and a hanging claw 97 for hooking the four front and rear and right and left seedling boxes N simultaneously.

【０００９】これによって、４枚の苗箱Ｎの積み重ね苗
箱分離を同時にでき、分離作業が能率化される。As a result, four seedling boxes N can be stacked and separated from each other at the same time, and the separating operation can be performed more efficiently.

【００１０】[0010]

【発明の実施の形態】以下、本発明の実施の形態を図面
に基づいて説明する。図１には、１は苗箱対地処理機と
して、苗箱展開機Ａと苗箱回収機Ｂとに変更可能にした
苗箱展開回収機の全体を示している。この苗箱展開回収
機１は、中央に歩道を形成しながら、左右各２枚以上複
数枚の苗箱Ｎを横長状態にして横並びに同時に展開しか
つ左右各２枚ずつ回収できる構成である。Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 shows a seedling box unfolding and collecting machine 1 which can be changed to a seedling box unfolding machine A and a seedling box collecting machine B as a seedling box to ground treatment machine. The seedling box unfolding and collecting machine 1 is configured such that two or more seedling boxes N on each side can be horizontally arranged in a horizontally elongated state while forming a sidewalk at the center, and can be unfolded side by side and simultaneously collected on each side.

【００１１】前記苗箱展開回収機１は、作業ユニット３
とメインユニット４とから構成され、作業ユニット３は
大別して、展開作業ユニット３Ａと回収作業ユニット３
Ｂとを備えている。なお、以下の説明において、前側と
は苗箱Ｎを展開する側であり、作業ユニット３は展開時
に後進し、回収時に前進する。The seedling box unfolding and collecting machine 1 includes a working unit 3
The work unit 3 is roughly divided into a deployment work unit 3A and a collection work unit 3.
B. In the following description, the front side is the side on which the seedling box N is deployed, and the working unit 3 moves backward when deployed and moves forward when collected.

【００１２】展開作業ユニット３Ａは図１〜７に示して
おり、メインユニット４側に取り付けられる支持フレー
ム５と、この支持フレーム５に後部が枢支連結された縦
横搬送機構（搬送装置）６Ａと、支持フレーム５側に設
けられていて縦横搬送機構６Ａを傾動させる傾動機構７
とを有する。回収作業ユニット３Ｂは図１、８〜１１に
示しており、メインユニット４側に取り付けられる支持
フレーム５と、この支持フレーム５に後部が枢支連結さ
れた縦横搬送機構６Ｂと、支持フレーム５側に設けられ
ていて縦横搬送機構６Ｂを傾動させる傾動機構７と、支
持フレーム５又はメインユニット４側に取り付けられる
箱取り上げ機構８とを備えている。The unfolding work unit 3A is shown in FIGS. 1 to 7, and includes a support frame 5 attached to the main unit 4, a vertical and horizontal transport mechanism (transport device) 6A having a rear portion pivotally connected to the support frame 5. , A tilting mechanism 7 provided on the support frame 5 side to tilt the vertical and horizontal transport mechanism 6A
And The collection work unit 3B is shown in FIGS. 1 and 8 to 11, and includes a support frame 5 attached to the main unit 4, a vertical and horizontal transport mechanism 6B having a rear portion pivotally connected to the support frame 5, and a support frame 5 side. And a tilt mechanism 7 for tilting the vertical and horizontal transport mechanism 6B, and a box pick-up mechanism 8 attached to the support frame 5 or the main unit 4 side.

【００１３】前記展開作業ユニット３Ａと回収作業ユニ
ット３Ｂの支持フレーム５及び傾動機構７は共通であ
り、縦横搬送機構６Ａ、６Ｂが択一的に支持フレーム５
に取り付けられ、箱取り上げ機構８はメインユニット４
側に着脱自在に固定される。メインユニット４は、クロ
ーラ式走行機体９と、この走行機体９上に配置された箱
受渡手段１０と、箱受渡手段１０に跨がって配置された
箱昇降機構１１と、箱昇降機構１１の後方側に配置され
た箱出入機構１２とを備えており、前記展開作業ユニッ
ト３Ａと回収作業ユニット３Ｂの共通装置である支持フ
レーム５及び傾動機構７は、走行機体９に常設されてい
る。The support frame 5 and the tilting mechanism 7 of the unfolding operation unit 3A and the recovery operation unit 3B are common, and the vertical and horizontal transport mechanisms 6A and 6B are alternatively used.
The box pick-up mechanism 8 is attached to the main unit 4
It is detachably fixed to the side. The main unit 4 includes a crawler-type traveling body 9, a box delivery unit 10 disposed on the traveling body 9, a box lifting / lowering mechanism 11 disposed across the box delivery unit 10, and a box lifting / lowering mechanism 11. It has a box loading / unloading mechanism 12 disposed on the rear side, and the support frame 5 and the tilting mechanism 7, which are common devices of the unfolding operation unit 3 </ b> A and the collection operation unit 3 </ b> B, are permanently installed on the traveling machine 9.

【００１４】図１〜９において、展開作業ユニット３Ａ
及び回収作業ユニット３Ｂ共通の支持フレーム５は、横
部材及び縦部材を組み合わせて平面視四角枠形状に形成
されており、前部に左右一対の係合部１５を設け、左右
側部にステー１６を立設しており、走行機体９に着脱自
在に固定され、前部左右にブラケット１７を介して側面
視略Ｌ字状の傾動部材１８の屈曲部を枢支している。In FIG. 1 to FIG.
The support frame 5 common to the collection unit 3B and the collection unit 3B is formed by combining a horizontal member and a vertical member into a rectangular frame shape in a plan view. It is detachably fixed to the traveling machine body 9, and pivotally supports a bent portion of a substantially L-shaped tilting member 18 in side view via brackets 17 on the front left and right sides.

【００１５】傾動部材１８は略Ｌ字状の下部が腕状にな
っていて前方に延設され、上部に油圧シリンダ等のアク
チュエータ１９が連結されている。このアクチュエータ
１９はステー１６に支持されているが、箱昇降機構１１
のフレームに支持してもよく、伸張することにより腕を
下向き傾斜させる。前記支持フレーム５、傾動部材１８
及びアクチュエータ１９等によって縦横搬送機構（搬送
装置）６の傾動機構７が構成されている。The tilting member 18 has a substantially L-shaped lower part in an arm shape and extends forward, and an upper part is connected to an actuator 19 such as a hydraulic cylinder. The actuator 19 is supported by the stay 16, but the box elevating mechanism 11
The arm may be tilted downward by extension. The support frame 5, the tilting member 18
The actuator 19 and the like constitute a tilting mechanism 7 of the vertical and horizontal transport mechanism (transport device) 6.

【００１６】なお、前記支持フレーム５を走行機体９か
ら左右一対の板材を突出して形成したり、傾動部材１８
を１本の腕部材で形成してそれと支持フレーム５との間
にアクチュエータ１９を設けたりしてもよい。図１〜７
において、展開作業ユニット３Ａの縦横搬送機構６Ａ
は、型鋼を縦横に組んだ搬送枠２１Ａと、この搬送枠２
１Ａ内の左右方向２組以上、例えば、各５組のローラコ
ンベヤ２２及び搬送枠２１Ａの前面側の駆動ローラ２３
とで形成された縦搬送手段２４と、搬送枠２１Ａ内の中
央側に配置された前後２組の横搬送手段２５とを有し、
縦搬送手段２４と横搬送手段２５とは左右一対設けられ
ていて、走行機体９中心線に対して左右対称形状となっ
ている。The support frame 5 may be formed by projecting a pair of left and right plate members from the traveling machine body 9, or may be formed by a tilting member 18.
May be formed by one arm member, and the actuator 19 may be provided between the arm member and the support frame 5. 1 to 7
, The vertical and horizontal transport mechanism 6A of the deployment work unit 3A
Is a transport frame 21A in which steel shapes are assembled vertically and horizontally, and a transport frame 2A
Two or more pairs, for example, five pairs of roller conveyors 22 and a driving roller 23 on the front side of the transport frame 21A in the left and right directions within 1A.
, And two sets of front and rear horizontal conveyance means 25 arranged on the center side in the conveyance frame 21A,
A pair of right and left vertical transport means 24 and horizontal transport means 25 are provided, and are symmetrical with respect to the center line of the traveling machine body 9.

【００１７】左右一対の縦搬送手段２４は通路Ｌを形成
する寸法だけ分離配置されている。各縦搬送手段２４の
ローラコンベヤ２２は遊転ローラを採用しており、１組
のローラコンベヤ２２上には横長の苗箱Ｎを前後２枚載
置可能であり、駆動ローラ２３は搬送枠２１Ａの前面側
にブラケット２６を介して支持された回転軸２７にコロ
２８を設けており、この回転軸２７は搬送枠２１Ａ側面
のチェーン伝動手段等の伝動手段２９を介してモータ３
０で駆動可能になっている。The pair of left and right vertical transport means 24 are separated from each other by a dimension for forming the passage L. The roller conveyor 22 of each of the vertical conveying means 24 employs an idler roller, and two laterally long seedling boxes N can be placed on one set of roller conveyors 22 in front and behind. A roller 28 is provided on a rotating shaft 27 supported via a bracket 26 on the front side of the motor 3. The rotating shaft 27 is connected to a motor 3 via a transmission means 29 such as a chain transmission means on the side surface of the transfer frame 21 </ b> A.
It can be driven at 0.

【００１８】前記ローラコンベヤ２２は駆動ローラでも
よいが、前搬送手段２４では前部の駆動ローラ２３のみ
が前送りの駆動部となっている。中央側のローラコンベ
ヤ２２は後方の箱受渡手段１０から苗箱Ｎが搬入する位
置にあり、その前部には進出自在なストッパ（図示して
いない）が設けられていて、箱受渡手段１０から搬入さ
れた苗箱Ｎが落ちないようになっている。The roller conveyor 22 may be a driving roller, but only the front driving roller 23 in the front conveying means 24 is a driving unit for moving forward. The roller conveyor 22 on the center side is located at a position where the seedling box N is carried in from the box delivery means 10 on the rear side, and a stopper (not shown) is provided at a front portion thereof so that the seedling box N can move forward. The seedling box N carried in is prevented from falling.

【００１９】前記ブラケット２６の先端には、各組のロ
ーラコンベヤ２２の延長上でかつ接地可能な接地輪３１
が支持されている。この接地輪３１は縦搬送手段２４の
前端を支持すると共に、地面に敷設した苗箱Ｎを後方か
ら押して揃える役目もする。前記横搬送手段２５は、中
央１本の軸２５Ａにスプロケットを遊転自在に支持し、
左右各軸２５Ｂにスプロケットを固定し、中央と左右の
スプロケット間にチェーン３２を巻き掛け、このチェー
ン３２に苗箱Ｎと係合する係合部材を設けたものであ
り、中央側ローラコンベヤ２２の隙間に配置されてい
る。At the front end of the bracket 26, a grounding wheel 31 is provided which is an extension of each set of roller conveyors 22 and can be grounded.
Is supported. The grounding wheel 31 supports the front end of the vertical transport means 24 and also serves to push and align the seedling boxes N laid on the ground from behind. The lateral transport means 25 supports the sprocket freely on a central shaft 25A,
A sprocket is fixed to each of the left and right shafts 25B, a chain 32 is wound around the center and left and right sprockets, and an engaging member for engaging the seedling box N is provided on the chain 32. It is arranged in the gap.

【００２０】前記左右各軸２５Ｂはモータ２５Ｃからの
動力が逆方向に伝動されており、左右チェーン３２が逆
向きに移動することにより、その上に搬入されてきた前
後２枚の苗箱Ｎを左右外方へ１箱分押動する。従って、
横搬送手段２５は、その上に搬入されてきた苗箱Ｎを１
箱分押動するだけで、縦搬送手段２４上に所定枚数の苗
箱Ｎを並べることができ、しかもそれが左右同時に行わ
れるので、縦横搬送機構６Ａにおける左右重量バランス
が良好に維持される。The power from the motor 25C is transmitted in the opposite direction to each of the left and right shafts 25B. When the left and right chains 32 move in the opposite direction, the two front and rear seedling boxes N carried thereon are transferred. Push one box outward to the left and right. Therefore,
The horizontal transport means 25 moves the seedling box N carried thereon into one
By simply pushing the boxes, a predetermined number of seedling boxes N can be arranged on the vertical transport means 24, and the seedling boxes N are simultaneously placed on the right and left sides, so that the right and left weight balance in the vertical and horizontal transport mechanism 6A is well maintained.

【００２１】前記搬送枠２１Ａの後下部には左右一対の
枢支軸３３が設けられており、この枢支軸３３は前記支
持フレーム５の係合部１５に上方から係脱自在に係合さ
れる。係合状態の枢支軸３３は略Ｌ字状の傾動部材１８
の枢支点と同心であるが、前後又は上下にずれていても
よい。傾動部材１８の腕部先端は搬送枠２１Ａに設けた
当接部材３４に接離自在になっており、アクチュエータ
１９で傾動部材１８を上向き揺動することにより、搬送
枠２１Ａを枢支軸３３を中心にして持ち上げ揺動し、縦
横搬送機構６Ａを略水平姿勢にし、アクチュエータ１９
を逆作動して傾動部材１８を下向き揺動することによ
り、搬送枠２１Ａを枢支軸３３を中心にして下降し、縦
横搬送機構６Ａを接地輪３１が接地する前下向き姿勢に
傾倒する。A pair of left and right pivot shafts 33 are provided at the rear lower portion of the transfer frame 21A. The pivot shafts 33 are engaged with the engaging portions 15 of the support frame 5 from above so as to be freely detachable. You. The pivot shaft 33 in the engaged state is a substantially L-shaped tilting member 18.
, But may be shifted back and forth or up and down. The tip of the arm portion of the tilting member 18 is freely movable toward and away from a contact member 34 provided on the transport frame 21A, and the tilting member 18 is pivoted upward by the actuator 19 to move the transport frame 21A to the pivot shaft 33. The vertical and horizontal transport mechanism 6A is set to a substantially horizontal posture,
Is operated in reverse to swing the tilting member 18 downward, thereby lowering the transport frame 21A about the pivot shaft 33, and tilting the vertical and horizontal transport mechanism 6A to the front downward position where the grounding wheel 31 is in contact with the ground.

【００２２】接地輪３１が接地した状態から傾動部材１
８をさらに若干下向き揺動して、傾動部材１８を搬送枠
２１Ａから離すと、縦横搬送機構６Ａは地面の凹凸に追
従するフローティング状態になる。なお、搬送枠２１Ａ
の左右両端又は中途部に車輪を設けて、縦横搬送機構６
Ａの重量をその車輪で支持し、接地輪３１を地面から僅
かに浮き上がらせてもよい。また、縦横搬送機構６Ａは
左右の片側だけでも、苗箱Ｎの前後搬送及び横搬送はで
きる。When the grounding wheel 31 is in contact with the ground, the tilting member 1
When the tilting member 18 is further moved downward slightly to separate the tilting member 18 from the transport frame 21A, the vertical and horizontal transport mechanism 6A enters a floating state that follows the unevenness of the ground. The transfer frame 21A
Wheels are provided at both left and right ends or in the middle of the
The weight of A may be supported by the wheel, and the ground contact wheel 31 may be slightly raised from the ground. Also, the vertical and horizontal transport mechanism 6A can transport the seedling box N back and forth and laterally by using only one of the left and right sides.

【００２３】前記縦横搬送機構６Ａの搬送枠２１Ａ及び
縦搬送手段２４は、走行機体９の側縁に略相当する位置
とこの走行機体側縁相当位置と外端との間の位置とに折
り畳み連結部３５が形成されており、折り畳み連結部３
５は前後軸回りに折り畳み可能であり、回転軸２７も折
り畳み連結部３５に対応する位置で自在継手を介して連
結されている。The transport frame 21A and the vertical transport means 24 of the vertical and horizontal transport mechanism 6A are foldably connected to a position substantially corresponding to the side edge of the traveling machine body 9 and a position between the position corresponding to the lateral edge of the traveling machine body and the outer end. Part 35 is formed and the folding connection part 3
Numeral 5 is foldable around the front-rear axis, and the rotating shaft 27 is also connected via a universal joint at a position corresponding to the fold connection part 35.

【００２４】左右の縦横搬送機構６Ａを各２ヵ所で搬送
枠２１Ａの外端側を上方に持ち上げる方向に折り畳むこ
とにより、図４に示すように、作業ユニット３Ａがメイ
ンユニット４の正面側投影域内に収まり、メインユニッ
ト４が通過できる間口であれば、苗箱展開回収機１全体
が通過できるようになっている。左右の縦横搬送機構６
Ａは折り畳み連結部３５の左右位置が若干ずれていて、
左右外側部は折り畳まれたときに、メインユニット４の
正面側で上下にずれて配置され、衝突することがない。By folding the left and right vertical and horizontal transport mechanisms 6A at two locations in the direction of lifting the outer end side of the transport frame 21A upward, the working unit 3A is positioned within the front projection area of the main unit 4 as shown in FIG. And the whole seedling box unfolding and collecting machine 1 can pass if it is a frontage through which the main unit 4 can pass. Left and right vertical and horizontal transport mechanism 6
In A, the left and right positions of the folding connection portion 35 are slightly shifted,
When the left and right outer portions are folded, they are arranged vertically offset on the front side of the main unit 4 and do not collide.

【００２５】前記折り畳み連結部３５は左右縦横搬送機
構６Ａの幅が狭い場合、走行機体側縁略相当位置か走行
機体側縁相当位置と外端との間の位置か、どちらか一方
に形成される。図８、９において、回収作業ユニット３
Ｂの縦横搬送機構６Ｂは、型鋼を縦横に組んだ搬送枠２
１Ｂと、この搬送枠２１Ｂ内の中央側駆動コンベヤ３７
及び側部側駆動コンベヤ３８で形成された縦搬送手段３
９と、搬送枠２１Ｂ内の側部側駆動コンベヤ３８とオー
バラップする位置に配置された２組の横搬送手段４０と
を有する。When the width of the right, left, vertical and horizontal transport mechanism 6A is narrow, the folding connection portion 35 is formed at one of a position substantially corresponding to the side edge of the traveling body and a position between the position corresponding to the side edge of the traveling body and the outer end. You. 8 and 9, the collection work unit 3
The vertical and horizontal transport mechanism 6B of B is a transport frame 2 in which die steel is assembled vertically and horizontally.
1B and the central drive conveyor 37 in the transport frame 21B.
And vertical transport means 3 formed by side-side drive conveyor 38
9 and two sets of lateral transport means 40 arranged at positions overlapping the side drive conveyor 38 in the transport frame 21B.

【００２６】中央側駆動コンベヤ３７及び側部側駆動コ
ンベヤ３８は走行機体９中心線に対して左右対称形状で
あるが、２組の横搬送手段４０は左右で前後に１箱分ず
れている。前記縦搬送手段３９の左右の中央側駆動コン
ベヤ３７は１個のモータ４１からの動力をチェーン伝動
手段等の伝動手段で伝達しており、各中央側駆動コンベ
ヤ３７のローラ軸が外側の側部側駆動コンベヤ３８のロ
ーラ軸と継手を介して連結されていて、側部側駆動コン
ベヤ３８を同期駆動するようになっている。The center drive conveyor 37 and the side drive conveyor 38 are symmetrical with respect to the center line of the traveling body 9, but the two sets of horizontal transport means 40 are shifted left and right by one box. The right and left central drive conveyors 37 of the vertical transport means 39 transmit the power from one motor 41 by a transmission means such as a chain transmission means, and the roller shaft of each central drive conveyor 37 has an outer side portion. The side drive conveyor 38 is connected to the roller shaft of the side drive conveyor 38 via a joint so as to drive the side drive conveyor 38 synchronously.

【００２７】前記中央側駆動コンベヤ３７は側部側駆動
コンベヤ３８より後方に若干長く形成され、後方の箱受
渡手段１０への苗箱Ｎの搬出が可能になっており、ま
た、側部側駆動コンベヤ３８の先端外側は切欠４２が形
成され、搬送枠２１Ｂの前側部が側部側駆動コンベヤ３
８で回収されない地上の苗箱Ｎと干渉しないようになっ
ている。The center drive conveyor 37 is formed slightly longer behind the side drive conveyor 38 so that the seedling box N can be carried out to the box delivery means 10 at the rear. A notch 42 is formed on the outer side of the tip of the conveyor 38, and the front side of the transport frame 21 </ b> B is
8 so as not to interfere with the seedling box N on the ground that is not collected.

【００２８】前記横搬送手段４０はモータ４３Ａ、４３
Ｂによって駆動される一対のスプロケットにチェーンを
巻き掛け、このチェーンに苗箱Ｎと係合する係合部材を
設けたものであり、各側部側駆動コンベヤ３８のローラ
隙間に配置されていて、その上に搬入されてきた苗箱Ｎ
を中央側駆動コンベヤ３７上へ１箱分押動する。左側の
苗箱Ｎは左側駆動コンベヤ３８の後端まで移動可能であ
るが、右側の苗箱Ｎは右側横搬送手段４０の後方にスト
ッパ４５が設けられていて、それ以上は後方移動しない
ようになっている。このストッパ４５は固定でも進退自
在でもよい。The horizontal transport means 40 includes motors 43A, 43
A chain is wound around a pair of sprockets driven by B, and an engaging member that engages with the seedling box N is provided on the chain. The chain is disposed in a roller gap of each side drive conveyor 38, Seedling box N carried on it
Is pushed onto the central drive conveyor 37 by one box. The left seedling box N can be moved to the rear end of the left driving conveyor 38, but the right seedling box N is provided with a stopper 45 at the rear of the right lateral conveying means 40 so that it does not move backward any more. Has become. The stopper 45 may be fixed or movable back and forth.

【００２９】前記縦横搬送機構６Ｂも縦横搬送機構６Ａ
と同様に、搬送枠２１Ｂ及び縦搬送手段３８は、走行機
体９の側縁に略相当する位置に折り畳み連結部３５が形
成されており、折り畳み連結部３５は前後軸回りに折り
畳み可能であり、縦搬送手段３９の中央側駆動コンベヤ
３７と側部側駆動コンベヤ３８とを接続している自在継
手が対応している。The vertical and horizontal transport mechanism 6B is also a vertical and horizontal transport mechanism 6A.
Similarly to the above, the transport frame 21B and the vertical transport means 38 have a foldable connecting portion 35 formed at a position substantially corresponding to the side edge of the traveling machine body 9, and the foldable connecting portion 35 can be folded around the front-rear axis. A universal joint that connects the center side drive conveyor 37 and the side side drive conveyor 38 of the vertical conveying means 39 corresponds to the universal joint.

【００３０】左右の縦横搬送機構６Ｂを各１ヵ所で外端
側を上方に持ち上げる方向に折り畳むことにより、図４
と同様に、作業ユニット３Ｂがメインユニット４の正面
側投影域内に収まり、メインユニット４が通過できる間
口であれば、苗箱展開回収機１全体が通過できるように
なっている。なお、後述する箱取り上げ機構８は折り畳
み連結部３５で折り畳み可能にするか、走行機体９から
離脱させる。The left and right vertical and horizontal transport mechanisms 6B are folded at one place in the direction of lifting the outer end side upward, thereby obtaining the configuration shown in FIG.
Similarly to the above, if the working unit 3B is within the front projection area of the main unit 4 and the frontage through which the main unit 4 can pass, the entire seedling box unfolding and collecting machine 1 can pass. The box pick-up mechanism 8 described later is made foldable by the foldable connecting portion 35 or is detached from the traveling machine body 9.

【００３１】図９に示す縦横搬送機構６Ｂでは、横長の
苗箱Ｎを横１列４枚同時に縦搬送手段３９上に載せて後
方へ移動し、右２枚の苗箱Ｎがストッパ４５で停止した
後も左２枚の苗箱Ｎを搬送枠２１Ｂの後端まで移動す
る。そして、右２枚の苗箱Ｎを右側横搬送手段４０で中
央側へ移動すると共に、それより後方にずれている左２
枚の苗箱Ｎを左側横搬送手段４０で中央側へ移動し、搬
送枠２１Ｂの中央で計４枚の苗箱Ｎを前後左右に配置
し、その状態で中央側駆動コンベヤ３７を再駆動して全
苗箱Ｎを後方へ搬出する。In the vertical and horizontal transport mechanism 6B shown in FIG. 9, four horizontally long seedling boxes N are simultaneously placed on the vertical transport means 39 and moved rearward, and the right two seedling boxes N are stopped by the stopper 45. After that, the two left seedling boxes N are moved to the rear end of the transfer frame 21B. Then, the two right seedling boxes N are moved toward the center by the right side lateral transport means 40, and the left two seedling boxes N are shifted rearward therefrom.
The seedling boxes N are moved to the center side by the left lateral conveying means 40, and a total of four seedling boxes N are arranged at the center of the conveying frame 21B in the front, rear, left and right, and the center side driving conveyor 37 is driven again in that state. The entire seedling box N out.

【００３２】このように左右２枚ずつ計４枚の苗箱Ｎを
同時に回収すると、左右での苗箱Ｎの横搬送が略対称に
なって、重量バランスが良好になる。図８〜１１におい
て、箱取り上げ機構８は縦横搬送機構６Ｂに対応して横
１列４枚の苗箱Ｎを１度に取り上げ可能であり、箱昇降
機構１１又は支持フレーム５等からステーを突出してそ
のステーに取り付けられていて、前方に突出した前フレ
ーム５１と、この前フレーム５１に左右方向複数組設け
られた引掛具５２と、引掛具５２を強制的に後上方へ跳
ね上げて苗箱Ｎから離脱させる強制離脱手段５６と、強
制離脱手段５６の作動を規制しているストッパ手段５７
と、ストッパ手段５７を強制解除して引掛具５２を退避
させる退避手段５８と、強制離脱手段５６を引掛具５２
が略垂下する位置まで戻す戻し手段５９と、動作を制御
する制御手段６５とを有している。When a total of four seedling boxes N are collected simultaneously, two right and left seedling boxes N, the lateral transport of the left and right seedling boxes N is substantially symmetric, and the weight balance is improved. 8 to 11, the box pick-up mechanism 8 can pick up four seedling boxes N in one row at a time corresponding to the vertical and horizontal transport mechanism 6B, and protrudes the stay from the box elevating mechanism 11 or the support frame 5 or the like. A front frame 51 attached to the stay and projecting forward, a plurality of hooks 52 provided on the front frame 51 in the left-right direction, and the seedling box forcibly flipping the hooks 52 upward and rearward. N and a stopper means 57 for restricting the operation of the forced release means 56.
A retracting means 58 forcibly releasing the stopper means 57 and retracting the hooking tool 52;
Has a return means 59 for returning to a position at which the camera substantially drops, and a control means 65 for controlling the operation.

【００３３】前記引掛具５２は、前フレーム５１の角部
材５１Ａに設けた支持軸５４に１枚の苗箱Ｎに対して３
本が独立揺動自在に遊嵌しており、その下部は側面視略
Ｌ字形状（鉤形状）の掛け爪部５２Ａを形成していて、
その掛け爪部５２Ａを略接地した状態（図１０のイ状
態）でメインユニット４の前進に伴い、その上部の前進
移動で各苗箱Ｎの周縁Ｎａに下方から引っ掛ける。The hook 52 is attached to the support shaft 54 provided on the corner member 51A of the front frame 51 with respect to one seedling box N.
The book is freely and freely swingably fitted, and the lower part thereof forms a hooking claw 52A having a substantially L-shape (hook shape) in side view.
With the hook claw 52A substantially grounded (state A in FIG. 10), the main unit 4 is hooked from below onto the peripheral edge Na of each seedling box N by the forward movement of the upper part as the main unit 4 moves forward.

【００３４】この引掛具５２が引っ掛かった状態（図１
０のロ状態）で苗箱Ｎが移動しないので、上部を中心に
円弧運動し、後上方へ円弧移動により苗箱Ｎを前部を中
心に後部を持ち上げる（図１０のハ状態）。そして、引
掛具５２は苗箱Ｎを持ち上げた状態（図１のハ状態）で
縦横搬送機構６Ｂの前部上方にあり、この状態からさら
に引掛具５２の上部が前進すると、一定角度以上揺動し
たときに周縁Ｎａが掛け爪部５２Ａより上位部分で当接
して、てこ作用により掛け爪部５２Ａが周縁Ｎａから外
れ（自然離脱角度、図１０のニ状態）、苗箱Ｎは落下す
るように縦横搬送機構６Ｂ上に載置される。The state in which the hook 52 is hooked (FIG. 1)
(B), the seedling box N does not move, so that the seedling box N moves in an arc around the upper part, and the rear part of the seedling box N is lifted around the front part by the arc movement upward and backward (state C in FIG. 10). Then, the hook 52 is located above the front of the vertical and horizontal transport mechanism 6B in a state where the seedling box N is lifted (state C in FIG. 1). When the upper portion of the hook 52 further advances from this state, it swings by a certain angle or more. Then, the peripheral edge Na comes into contact with the upper part of the hook claw 52A, the hook claw 52A comes off from the peripheral Na by the leverage (natural departure angle, two states in FIG. 10), and the seedling box N falls. It is placed on the vertical and horizontal transport mechanism 6B.

【００３５】引掛具５２はてこ作用により掛け爪部５２
Ａが周縁Ｎａから外れる前に、すなわち、揺動角度が前
記自然離脱角度になる前に強制離脱手段５６によって強
制的に跳ね上げられて離脱される（強制離脱角度）。こ
の引掛具５２を強制的に離脱させ、またセット位置に戻
す機構及び作用を次に示す。The hook 52 is provided with a hook 52 by leverage.
Before the A deviates from the peripheral edge Na, that is, before the swing angle becomes the spontaneous detachment angle, the forcible detaching means 56 forcibly jumps up and detaches (forcible detachment angle). The mechanism and operation of forcibly detaching the hook 52 and returning it to the set position will be described below.

【００３６】回収作業ユニット３Ｂを横並びの苗箱Ｎに
対向させて前進させる。このとき、センサ６５Ａが跳ね
上げ部材６０を検出するか、又はセンサ６５Ｂが跳ね上
げ部材６０を検出しないと、引掛具２２が略垂下状態イ
にあるので、作業ユニット３Ｂはそのまま前進され、そ
うでないと、制御部６６を介してモータ６４を１正転さ
せ、戻し手段５９を駆動して、セットレバー５９Ａで跳
ね上げ部材６０を下向き揺動させ、ストッパ手段５７を
作動させて跳ね上げ部材６０をセット位置に保持し、セ
ンサ６５Ａで検出させる。The collection work unit 3B is moved forward so as to face the seedling boxes N arranged side by side. At this time, if the sensor 65A detects the flip-up member 60 or the sensor 65B does not detect the flip-up member 60, the hooking tool 22 is in the substantially hanging state A, so that the working unit 3B is moved forward without change. Then, the motor 64 is rotated forward by one through the control unit 66, the return means 59 is driven, the flip-up member 60 is pivoted downward by the set lever 59A, and the flip-up member 60 is operated by operating the stopper means 57. It is held at the set position and detected by the sensor 65A.

【００３７】引掛具５２が略垂下状態イにセットされる
と、回収作業ユニット３Ｂの前進が開始されて引掛具５
２が引きずられ、その掛け爪部５２Ａが展開されていた
各苗箱Ｎに引っ掛かる。そして苗箱Ｎは前端を中心に後
部が引き上げられ、引掛具５２は支持軸５４を中心に後
上方へ円弧軌道を描きながら一定角度まで揺動し、自然
離脱角度になる直前で、引掛具５２がストッパ部材６２
の解除レバー部６２Ａと当接してこれを回動する。When the hook 52 is set in the substantially hanging state A, the recovery operation unit 3B starts to move forward and the hook 5
2 is dragged, and the hook claw 52A is hooked on each seedling box N that has been deployed. The rear of the seedling box N is lifted around the front end, and the hook 52 swings to a certain angle while drawing an arc trajectory upward and rearward around the support shaft 54, and immediately before the spontaneous departure angle is reached, the hook 52 Is the stopper member 62
Abuts on the release lever portion 62A and rotates it.

【００３８】ストッパ部材６２が解除されると、跳ね上
げ部材６０が付勢部材６１の弾発力で衝撃的に跳ね上げ
られ、全引掛具５２を強制的に跳ね上げ、掛け爪部５２
Ａを苗箱Ｎから離脱させる。これによって苗箱Ｎは後部
が縦横搬送機構６Ｂの上に落下される。このようにし
て、各苗箱Ｎに対応した複数の引掛具５２で苗箱Ｎを持
ち上げ、縦横搬送機構６Ｂ上に移載し、苗箱Ｎが縦横搬
送機構６Ｂ上に完全に載ったのを見てから前進ボタンを
押して、又はセンサ６５Ｂが跳ね上げ部材６０を検出し
てから設定時間後にモータ６４を１正転させ、戻し手段
５９を駆動して、セットレバー５９Ａで跳ね上げ部材６
０を押し下げ、跳ね上げ部材６０をオーバランさせた後
にセット位置に戻し、セットレバー５９Ａを上昇させた
後、再び箱取り上げ機構１１に前記苗箱取り上げ動作を
行わせる。When the stopper member 62 is released, the jumping-up member 60 is shockedly jumped up by the resilience of the urging member 61, and the entire hook 52 is forcibly jumped up.
A is removed from the seedling box N. As a result, the rear portion of the seedling box N is dropped onto the vertical and horizontal transport mechanism 6B. In this way, the seedling box N is lifted by the plurality of hooks 52 corresponding to each seedling box N, transferred onto the vertical and horizontal transport mechanism 6B, and the seedling box N is completely mounted on the vertical and horizontal transport mechanism 6B. After watching, the forward button is pressed, or after a set time from when the sensor 65B detects the flip-up member 60, the motor 64 is rotated by one forward direction, the return means 59 is driven, and the flip-up member 6 is moved by the set lever 59A.
0 is pushed down, the jumping-up member 60 is overrun, returned to the set position, the set lever 59A is raised, and the box pick-up mechanism 11 performs the seedling box pick-up operation again.

【００３９】所要の苗箱Ｎの回収が完了したとき、又は
何らかの理由により作業ユニット３Ｂを後進させると
き、後進ボタンを押すと、センサ６５Ａが跳ね上げ部材
６０を検出するか、又はセンサ６５Ｂが跳ね上げ部材６
０を検出しないと、引掛具５２が垂下状態イにあるの
で、作業ユニット３Ｂをそのまま後進させると、引きず
り状態の引掛具５２が地面に食い込むようにつっかえる
ことになるので、制御部６６を介してモータ６４を１逆
転させ、退避手段５８を駆動する。When the collection of the required seedling box N is completed, or when the work unit 3B is moved backward for some reason, when the backward button is pressed, the sensor 65A detects the jumping member 60 or the sensor 65B jumps. Raising member 6
If 0 is not detected, the hooking tool 52 is in the hanging state A. If the working unit 3B is moved backward as it is, the hooking tool 52 in the dragged state will bite into the ground. The motor 64 is rotated by one reverse to drive the retracting means 58.

【００４０】短い回転アーム６４Ａは逆転によりリリー
スレバー５８Ａを揺動してストッパ手段５７の解除レバ
ー部６２Ａを押動し、ストッパ部材６２を解除して跳ね
上げ部材６０を跳ね上げ、全引掛具５２を強制的に跳ね
上げ退避させる。図２〜９において、メインユニット４
上の箱受渡手段１０は左右一対あって走行機体９の前部
に位置し、各箱受渡手段１０はコロ式の第１移動手段６
８、チェーン式の第２移動手段６９、ローラ式の受け手
段７０及びデバイダ７３を有し、これらは全て走行機体
９に設けてもよいが、チェーン式の第２移動手段６９及
びローラ式の受け手段７０は支持フレーム５に支持され
ている。The short rotating arm 64A swings the release lever 58A by reversing to push the release lever portion 62A of the stopper means 57, release the stopper member 62, and flip up the flip-up member 60, so that the full hook 52 Is forcibly lifted and evacuated. 2 to 9, the main unit 4
The upper box delivery means 10 are located in front of the traveling machine body 9 in a pair of right and left, and each box delivery means 10 is a roller type first moving means 6.
8, a chain-type second moving means 69, a roller-type receiving means 70, and a divider 73, all of which may be provided in the traveling body 9, but the chain-type second moving means 69 and the roller-type receiving means The means 70 is supported by the support frame 5.

【００４１】中央１個のモータ７１からの動力をチェー
ン伝動手段を介して左右第１移動手段６８のコロ軸に伝
達すると共に左右第２移動手段６９にも伝達しており、
第２移動手段６９はチェーンに係合片７２を設けてあっ
て、苗箱Ｎの前後端を引っ掛けて押動する構成となって
おり、受け手段７０はこの第２移動手段６９で移動する
苗箱Ｎを受持している。The power from one motor 71 at the center is transmitted to the roller shafts of the first left and right moving means 68 via the chain transmission means and also to the second right and left moving means 69.
The second moving means 69 has an engagement piece 72 provided on the chain, and is configured to hook and push the front and rear ends of the seedling box N. The receiving means 70 is moved by the second moving means 69. Box N is received.

【００４２】前記箱受渡手段１０は、メインユニット４
に展開作業ユニット３Ａが装着される場合は、第１移動
手段６８に載置された苗箱Ｎを第２移動手段６９で縦横
搬送機構６Ａ上まで押動し、回収作業ユニット３Ｂが装
着される場合は、縦横搬送機構６Ｂの縦搬送手段３９で
送られてきた苗箱Ｎを第２移動手段６９を介して第１移
動手段６８上まで移動させ、縦横搬送機構６Ａ、６Ｂと
の苗箱Ｎの受渡を行う。The box delivery means 10 includes a main unit 4
When the unfolding work unit 3A is mounted on the first transfer unit 68, the seedling box N placed on the first transfer unit 68 is pushed by the second transfer unit 69 onto the vertical and horizontal transport mechanism 6A, and the collection work unit 3B is mounted. In this case, the seedling box N sent by the vertical transfer means 39 of the vertical and horizontal transfer mechanism 6B is moved to above the first transfer means 68 via the second transfer means 69, and the seedling box N with the vertical and horizontal transfer mechanisms 6A, 6B is moved. Delivery.

【００４３】この第２移動手段６９から第１移動手段６
８へ苗箱Ｎが移動するとき、左右第２移動手段６９間の
後部に位置するデバイダ７３が苗箱Ｎの左右間隔を設定
し、内外受け部材７９Ａ、８０Ａに対して苗箱Ｎが正規
の位置になるように修正する。前記箱受渡手段１０は、
第１移動手段６８又は第２移動手段６９を長く形成し
て、それのみで構成することも可能であり、第１移動手
段６８と第２移動手段６９とを別個のモータで駆動して
もよい。The second moving means 69 to the first moving means 6
When the seedling box N moves to the position 8, the divider 73 located at the rear portion between the left and right second moving means 69 sets the left and right intervals of the seedling box N, and the seedling box N is properly regulated with respect to the inner and outer receiving members 79A and 80A. Modify to be in position. The box delivery means 10 comprises:
The first moving means 68 or the second moving means 69 may be formed to be long, and may be constituted by only one. The first moving means 68 and the second moving means 69 may be driven by separate motors. .

【００４４】箱昇降機構１１は図１〜５、８、９に示さ
れており、左右箱受渡手段１０の第１移動手段６８に跨
がって配置されていて、前後左右計４枚の苗箱Ｎを上下
に間隔をおいて昇降可能であり、苗箱展開時には左右各
第１移動手段６８に対して苗箱Ｎを前後２枚ずつ供給
し、苗箱回収時には左右各第１移動手段６８から苗箱Ｎ
を前後２枚ずつ取り上げ、その後方側に配置された箱出
入機構１２へ受渡を行う。The box raising / lowering mechanism 11 is shown in FIGS. 1 to 5, 8 and 9, and is disposed over the first moving means 68 of the left and right box delivery means 10, and has four seedlings in total. The box N can be moved up and down at intervals, and when the seedling box is unfolded, two seedling boxes N are supplied to each of the left and right first moving means 68, and at the time of collecting the seedling box, the left and right first moving means 68 are supplied. From seedling box N
Are picked up two at a time, and are delivered to a box loading / unloading mechanism 12 arranged on the rear side.

【００４５】前記箱昇降機構１１は、走行機体９に固定
の機構枠７６と、この機構枠７６に支持されていて左右
各苗箱Ｎを１段ずつ上下に間隔を空けて昇降する箱多段
昇降手段７７と、この箱多段昇降手段７７上の全苗箱Ｎ
を後方へ押し出すプッシャ手段７８とを有する。このプ
ッシャ手段７８は苗箱回収作業時のみ使用されるもの
で、機構枠７６に対して着脱自在にしておいてもよい。The box raising / lowering mechanism 11 includes a mechanism frame 76 fixed to the traveling machine body 9 and a box multi-stage lifting / lowering mechanism which supports the left and right seedling boxes N one at a time vertically by supporting the mechanism frame 76. Means 77 and the whole seedling box N on the box multi-stage elevating means 77
And pusher means 78 for pushing out the rearward. The pusher means 78 is used only during the seedling box collection operation, and may be detachable from the mechanism frame 76.

【００４６】箱多段昇降手段７７は、横長配置の苗箱Ｎ
を前後２枚同時にかつそれを左右同時に昇降するように
左右対称構造となっていて、左右の構造は、内側チェー
ン７９と外側チェーン８０とを前後に一対有し、前後の
内側チェーン７９に架設した受け部材７９Ａと前後の外
側チェーン８０に架設した受け部材８０Ａとで前後２枚
セットの苗箱Ｎを受持する。The box multi-stage lifting / lowering means 77 is a horizontally arranged seedling box N
Has a left-right symmetrical structure so that it can be moved up and down at the same time as the front and rear two and the left and right at the same time. Two sets of front and rear seedling boxes N are received by the receiving member 79A and the receiving members 80A provided on the front and rear outer chains 80.

【００４７】前記受け部材７９Ａ、８０Ａは正面視Ｌ字
状のアングル材が使用されており、苗箱Ｎを受持した状
態で下降して第１移動手段６８に移載可能であり、また
逆転することにより、第１移動手段６８上の苗箱Ｎを上
昇しながら取り上げ可能になっている。内外チェーン７
９、８０は機構枠７６に支持されたスプロケットに掛け
られているが、内側チェーン７９は箱多段昇降手段７７
の中央部で巻き掛ける空間が少ないため、図４に示すよ
うに、外側チェーン８０より外側に配置したアイドラス
プロケット８１を介して大きく迂回して巻き掛けられて
いる。The receiving members 79A and 80A are made of an L-shaped angle member when viewed from the front, and can be lowered and transferred to the first moving means 68 while holding the seedling box N. By doing so, the seedling box N on the first moving means 68 can be picked up while being raised. Inner / outer chain 7
9 and 80 are hung on a sprocket supported by a mechanism frame 76, while the inner chain 79 is provided with a box multi-stage elevating means 77.
Since there is little space for winding around the center part of the outer chain 80, as shown in FIG.

【００４８】プッシャ手段７８は機構枠７６に支持され
た油圧シリンダ等のアクチュエータ８２と、このアクチ
ュエータ８２のシリンダロッド等に設けられた押し部材
８３とを有し、アクチュエータ８２の作動で押し部材８
３を内外受け部材７９Ａ、８０Ａ間に押動可能になって
いて、回収作業時に箱多段昇降手段７７が第１移動手段
６８から持ち上げた苗箱Ｎを、上下間隔のある多段状態
のまま後方へ一括して押し出すことができる。The pusher means 78 has an actuator 82 such as a hydraulic cylinder supported by a mechanism frame 76, and a pushing member 83 provided on a cylinder rod or the like of the actuator 82. The pushing member 8 is actuated by the actuator 82.
3 can be pushed between the inner and outer receiving members 79A and 80A, and the seedling box N lifted from the first moving means 68 by the box multistage elevating means 77 during the collection operation is moved backward in a multistage state with a vertical interval. It can be extruded all at once.

【００４９】メインユニット４の後部に配置された箱出
入機構１２は、実質的には展開作業専用機構であるが、
回収作業時には育苗棚８５の配置空間を形成する役目を
する。但し、箱出入機構１２は展開作業時に走行機体９
から離脱しておいてもよい。図１〜３、８、９、１２〜
１８において、前記箱出入機構１２は、走行機体９に固
定の基台８７に４本支柱８８を立設しかつ前後支柱８８
上部間を連結して支持フレーム８６を形成しており、こ
の支持フレーム８６に積み重ね箱分離装置９１を備え、
内部空間に受け台８９に載置した積み重ね苗箱Ｎを収納
可能になっている。The box loading / unloading mechanism 12 disposed at the rear of the main unit 4 is substantially a mechanism dedicated to unfolding work.
At the time of the collection operation, it plays a role of forming an arrangement space for the nursery rack 85. However, the box in / out mechanism 12 moves the vehicle 9 during the unfolding operation.
You may leave from. Figures 1-3, 8, 9, 12-
In FIG. 18, the box loading / unloading mechanism 12 has four pillars 88 erected on a base 87 fixed to the traveling machine body 9 and front and rear pillars 88.
A support frame 86 is formed by connecting the upper portions, and a stack box separation device 91 is provided on the support frame 86,
The stacked seedling boxes N placed on the cradle 89 can be stored in the internal space.

【００５０】受け台８９は苗箱運搬用であって、その上
に横長配置の苗箱Ｎを前後２枚をセットとしそのセット
が左右一対のものを載置している。前後左右計４枚の苗
箱Ｎは箱間に後述の掛け爪９７が入り得る隙間が形成さ
れている。４本の支柱８８内にはガイド柱８８Ａが配置
されていて、このガイド柱８８Ａに保持枠９２が昇降自
在に案内されている。支持フレーム８６の左右側部には
チェーン昇降手段９３が設けられており、このチェーン
昇降手段９３のチェーン９３Ａに前記保持枠９２が連結
されていて、モータ９４からの動力を伝動手段９５を介
して伝動してチェーン９３Ａを駆動することにより、保
持枠９２を水平姿勢で昇降できるようにしている。The cradle 89 is for transporting the seedling boxes, on which two sets of front and rear seedling boxes N arranged in a horizontal direction are set. In the four seedling boxes N in front, rear, left and right, a gap is formed between the boxes so that a hook 97 described later can enter. Guide columns 88A are arranged in the four columns 88, and the holding frame 92 is guided by the guide columns 88A so as to be able to move up and down. On the left and right sides of the support frame 86, a chain elevating means 93 is provided. The holding frame 92 is connected to a chain 93A of the chain elevating means 93, and the power from a motor 94 is transmitted through a transmission means 95. By driving the chain 93A by transmission, the holding frame 92 can be moved up and down in a horizontal posture.

【００５１】積み重ね箱分離装置９１は、前後左右計４
枚の苗箱Ｎを積み重ねたものに対して上下動する保持枠
９２から、各苗箱Ｎの左右対向辺に対応して爪保持体９
６を垂下し、この爪保持体９６に軸９９を介して苗箱Ｎ
の左右対辺を引っ掛ける掛け爪９７を一対枢支してい
る。この掛け爪９７は前後両端の突起で苗箱Ｎの周縁Ｎ
ａを掛止可能になっている。The stacking box separating device 91 has a total of four
From the holding frame 92 which moves up and down with respect to the stack of the seedling boxes N, the claw holders 9 correspond to the left and right opposing sides of each seedling box N.
6 and drop the seedling box N on the nail holder 96 via the shaft 99.
A pair of hooks 97 for hooking the left and right opposite sides are pivotally supported. The hook 97 is formed by protrusions at both front and rear ends of the periphery N of the seedling box N.
a can be hooked.

【００５２】爪保持体９６には掛け爪９７が略水平姿勢
から下向き揺動するのを規制するストッパ９８が設けら
れ、このストッパ９８は掛け爪姿勢制御手段を構成して
いる。図１７において、掛け爪９７が積み重ね最上段の
苗箱Ｎの対辺の周縁Ｎａに対して上から下降するときに
その周縁Ｎａに当たって上向き揺動して逃げ（ｂ状
態）、下から上昇するときに爪姿勢制御手段で略水平姿
勢に維持して周縁Ｎａに引っ掛かかるようになっている
（ｃ状態）。The claw holder 96 is provided with a stopper 98 for restricting the hanging claw 97 from swinging downward from a substantially horizontal posture, and this stopper 98 constitutes a hanging claw posture control means. In FIG. 17, when the hanging claw 97 descends from above with respect to the peripheral edge Na of the opposite side of the seedling box N at the top of the stack, it swings upward and escapes (b state) when hitting the peripheral edge Na, and rises from below. The claw attitude control means is maintained in a substantially horizontal attitude and is caught on the peripheral edge Na (state c).

【００５３】また、前記爪保持体９６には前後セットの
苗箱Ｎにわたる長さの正面視Ｌ字状受けレール１００が
Ｌ形ブラケット１００ａ及び枢支軸１０１を介して枢支
されており、Ｌ形ブラケット１００ａには当接アーム１
０２が設けられていて、上昇したときに支柱８８に設け
たカム（作動部材）１０３と当接して、受けレール１０
０を図１６点線位置から実線位置まで上向き揺動させる
ようになっている。The claw holder 96 has a front-view L-shaped receiving rail 100 extending across the seedling box N of the front and rear set, which is pivotally supported via an L-shaped bracket 100a and a pivot shaft 101. Abutment arm 1 on the bracket 100a
02, which comes in contact with a cam (operating member) 103 provided on the support post 88 when the support rail 10 is lifted.
0 is swung upward from the dotted line position to the solid line position in FIG.

【００５４】前記カム１０３は左右の支柱８８に設けら
れていて積み重ね箱分離装置９１の中央にはなく、従っ
て当接アーム１０２も左右外側のＬ形ブラケット１００
ａに設けられていて中央側にはなく、そのため、左外側
の受けレール１００と右内側受けレール１００とは、右
外側のレール材１００と左内側受けレール１００とは、
それぞれ連動杆１０５で連結されていて、外側受けレー
ル１００の揺動で内側受けレール１００が連動揺動する
ようになっている。The cam 103 is provided on the left and right columns 88 and is not located at the center of the stacking box separating device 91. Therefore, the contact arm 102 is also provided on the left and right outer L-shaped brackets 100.
a and not on the center side, and therefore, the left outer receiving rail 100 and the right inner receiving rail 100 are separated from the right outer rail material 100 and the left inner receiving rail 100 by:
The inner receiving rails 100 are connected by the interlocking rods 105, and the inner receiving rails 100 are swung in conjunction with the swinging of the outer receiving rails 100.

【００５５】前記当接アーム１０２及びカム１０３等で
作動部材を形成し、この作動部材及び受けレール１００
等で受け取り手段１０４を構成しており、掛け爪９７が
苗箱Ｎと掛合して持ち上げた後に、さらに上昇したとき
に当接アーム１０２がカム１０３と係合して受けレール
１００が揺動し、受けレール１００が前記掛け爪９７に
代わって前後２枚の苗箱Ｎを受け取るようになっている
（図１７のｄ状態）。An operating member is formed by the contact arm 102 and the cam 103 and the like.
The receiving means 104 is constituted by the like, and after the hook 97 engages with the seedling box N and lifts, when the hook further rises, the contact arm 102 engages with the cam 103 and the receiving rail 100 swings. The receiving rail 100 receives the two front and rear seedling boxes N in place of the hanging claws 97 (state d in FIG. 17).

【００５６】前記保持枠９２上には、受けレール１００
が受け取った前後２枚の苗箱Ｎを前方向に押動する押動
手段１０７が左右一対設けられている。この押動手段１
０７は、保持枠９２に前後ブラケットを介して支持され
た前後軸１０８、１０９にチェーンを巻き掛け、このチ
ェーンに苗箱Ｎの後部周縁Ｎａと当接する押動板１１０
を取り付け、保持枠９２上のモータ１１１から動力伝達
手段１１２を介して駆動するように構成されている。On the holding frame 92, a receiving rail 100
There are provided a pair of right and left pushing means 107 for pushing forward and backward the two seedling boxes N received before and after. This pushing means 1
07, a chain is wound around the front and rear shafts 108 and 109 supported on the holding frame 92 via the front and rear brackets, and the pushing plate 110 which comes into contact with the rear peripheral edge Na of the seedling box N on this chain.
, And driven by the motor 111 on the holding frame 92 via the power transmission means 112.

【００５７】押動手段１０７は受けレール１００上の前
後２枚の苗箱Ｎを同時に前方向に押動して、箱多段昇降
手段７７の上位に位置する内外受け部材７９Ａ、８０Ａ
に移載する。前述のように、縦横搬送機構６Ａ、６Ｂ、
箱受渡手段１０、箱昇降機構１１及び箱出入機構１２等
で苗箱Ｎを前後２枚セットにして処理すると、１枚ずつ
処理する場合よりも高速化できる。The pushing means 107 simultaneously pushes the two front and rear seedling boxes N on the receiving rail 100 in the forward direction, and the inner and outer receiving members 79A, 80A located above the box multistage elevating means 77.
Transfer to As described above, the vertical and horizontal transport mechanisms 6A, 6B,
When the box delivery means 10, the box lifting / lowering mechanism 11, the box loading / unloading mechanism 12 and the like process the seedling boxes N as a set of two front and rear, processing can be performed at a higher speed than in the case of processing one seedling at a time.

【００５８】なお、前記積み重ね箱分離装置９１を含む
箱出入機構１２は、チェーン昇降手段９３の代わりに油
圧シリンダを用いたり、保持枠９２を昇降する代わりに
受け台８９を持ち上げるリフト等を使って積み重ね苗箱
Ｎを昇降したり、爪姿勢制御手段をソレノイド等で形成
して掛け爪９７を略水平姿勢から退避姿勢に変更した
り、押動手段１０７をプッシャ手段７８のように油圧又
は空圧シリンダで形成したしすることもできる。The box loading / unloading mechanism 12 including the stacking box separating device 91 uses a hydraulic cylinder in place of the chain lifting / lowering means 93, or uses a lift or the like that lifts the receiving base 89 instead of lifting / lowering the holding frame 92. The stacking seedling box N is raised and lowered, the claw attitude control means is formed by a solenoid or the like to change the hook 97 from a substantially horizontal attitude to a retracted attitude, and the pushing means 107 is hydraulically or pneumatically operated like the pusher means 78. It can also be formed by a cylinder.

【００５９】また、作動部材は空圧シリンダ又はソレノ
イドで形成することもでき、その場合は、積み重ね苗箱
Ｎの上方であればどの位置でも、掛け爪９７で持ち上げ
た苗箱Ｎを受けレール１００で受け取り、かつ押動手段
１０７で箱多段昇降手段７７へ押動することができるよ
うになる。回収作業時には、前記箱出入機構１２は積み
重ね箱分離装置９１を最上位まで上昇させておいて、そ
の下方の基台８７上に育苗棚８５が収納載置される。The operating member may be formed by a pneumatic cylinder or a solenoid. In this case, the rail 100 receives the seedling box N lifted by the hook 97 at any position above the stacked seedling box N. , And can be pushed by the pushing means 107 to the box multi-stage elevating means 77. During the collection operation, the box loading / unloading mechanism 12 raises the stacking box separating device 91 to the highest position, and the seedling rack 85 is stored and mounted on the base 87 below the stacking box separating device 91.

【００６０】この育苗棚８５は、箱多段昇降手段７７の
段数と略同段数でかつ対向する受け桟８５Ａを有し、プ
ッシャ手段７８で箱多段昇降手段７７から押し出される
前後左右計４枚の苗箱Ｎを全段同時に受け取り、フォー
クリフト等で機外に取り出される。次に、前記実施の形
態で示した苗箱対地処理機１を、メインユニット４に展
開作業ユニット３Ａを使用可能状態にセットして、苗箱
展開機Ａとした場合の苗箱展開方法を説明する。The seedling raising shelf 85 has a receiving bar 85A having substantially the same number of stages as the box multi-stage elevating means 77 and facing the same, and a total of four seedlings before and after being pushed out from the box multi-stage elevating means 77 by the pusher means 78. The boxes N are simultaneously received at all stages and taken out of the machine by a forklift or the like. Next, a seedling box unfolding method when the seedling box unfolding machine A is set by setting the unfolding operation unit 3A to the main unit 4 and setting the seedling box to ground processing machine 1 shown in the above-described embodiment to be usable. I do.

【００６１】前後左右計４枚の苗箱Ｎを、例えば、３０
段に積み重ねた状態で載置した受け台８９を、フォーク
リフトで運搬して箱出入機構１２内に挿入し、苗箱展開
機Ａをハウス内の展開域端部に移動する。箱出入機構１
２のチェーン昇降手段９３を作動して積み重ね箱分離装
置９１で最上段の前後左右４枚の苗箱Ｎを取り上げ、受
け取り手段１０４に移載された苗箱Ｎを押動手段１０７
で前方へ押動し、箱昇降機構１１に供給する。[0061] A total of four seedling boxes N,
The receiving tray 89 placed in a stacked state is transported by a forklift and inserted into the box access mechanism 12, and the seedling box deployment machine A is moved to the end of the deployment area in the house. Box in / out mechanism 1
The upper and lower four right and left seedling boxes N are picked up by the stacking box separating device 91 by operating the second chain lifting / lowering means 93, and the seedling boxes N transferred to the receiving means 104 are pushed.
, And is supplied to the box lifting mechanism 11.

【００６２】箱昇降機構１１は箱出入機構１２から順次
供給されてくる苗箱Ｎを受け部材７９Ａ、８０Ａで受け
取り、間欠的に降下して最下位置で第１移動手段６８に
移す。第１移動手段６８は受け取った苗箱Ｎを第２移動
手段７０を介して縦横搬送機構６Ａ上に供給する。左右
で前後２枚セットで搬入された苗箱Ｎは横搬送手段２５
で苗箱Ｎ１枚分左右方向に横移動され、後続の苗箱Ｎが
入ってきたときに順次押動されて縦搬送手段２４の左右
端部まで搬入される。The box raising / lowering mechanism 11 receives the seedling boxes N sequentially supplied from the box loading / unloading mechanism 12 with the members 79A and 80A, intermittently descends, and moves to the first moving means 68 at the lowest position. The first moving means 68 supplies the received seedling box N to the vertical and horizontal transport mechanism 6A via the second moving means 70. Seedling boxes N carried in the left and right two sets before and after
Then, when the next seedling box N enters, it is sequentially pushed and moved to the left and right ends of the vertical transport means 24.

【００６３】縦搬送手段２４の左右端部まで全域に苗箱
Ｎが供給されると、傾動機構７が作動して縦横搬送機構
６Ａを前下がり傾斜させ、かつ地面に預け、その上の全
苗箱Ｎを滑落させ、さらに、駆動ローラ２３を駆動して
後側の苗箱Ｎを確実に地上に受け渡す。この受け渡しは
走行機体９を後進しながら行われる。これにより、通路
Ｌを挟んで、例えば、左右に５枚ずつの苗箱Ｎが並べら
れる。When the seedling box N is supplied to the entire area up to the left and right ends of the vertical transport means 24, the tilting mechanism 7 operates to tilt the vertical and horizontal transport mechanism 6A forward and down, and deposit it on the ground, and all seedlings thereon The box N is slid down, and the driving roller 23 is driven to reliably transfer the rear seedling box N to the ground. This delivery is performed while the traveling body 9 moves backward. Thereby, for example, five seedling boxes N are arranged on the left and right sides of the passage L, for example.

【００６４】次に、前記苗箱対地処理機１を、メインユ
ニット４に回収作業ユニット３Ｂを使用可能状態にセッ
トして、苗箱回収機Ｂとした場合の苗箱回収方法を説明
する。縦横搬送機構６Ｂを下向き傾斜姿勢にした状態で
走行機体９を前進させ、箱取り上げ機構８の引掛具５２
で横並び４枚の苗箱Ｎの周縁Ｎａを引っ掛け、さらに走
行機体９を前進させて苗箱Ｎの後端を持ち上げ、縦横搬
送機構６Ｂに移載する。Next, a method of collecting seedling boxes in the case where the seedling box-to-ground treatment machine 1 is set in the main unit 4 so that the collecting work unit 3B can be used and the seedling box collecting machine B is used will be described. The traveling machine 9 is advanced in a state where the vertical and horizontal transport mechanism 6B is inclined downward, and the hook 52 of the box pick-up mechanism 8 is moved.
Then, the peripheral edges Na of the four seedling boxes N are hooked side by side, and the traveling machine 9 is further advanced to lift the rear end of the seedling box N and transferred to the vertical and horizontal transport mechanism 6B.

【００６５】傾動機構７で縦横搬送機構６Ｂを略水平姿
勢にしながら、縦搬送手段３９を作動して４枚の苗箱Ｎ
を後方へ移動すると、左２枚の苗箱Ｎは縦搬送手段３９
の後端まで移動するのに対し、右２枚の苗箱Ｎは縦搬送
手段３９の途中のストッパ４５で移動が停止し、その状
態で左右横搬送手段４０を作動すると、左右苗箱Ｎは中
央に寄せ集められ、前後２枚セットが左右一対作られ
る。While the vertical and horizontal transport mechanism 6B is in a substantially horizontal position by the tilting mechanism 7, the vertical transport means 39 is operated and the four seedling boxes N
Is moved backward, the two seedling boxes N on the left
While the right two seedling boxes N stop moving at the stopper 45 in the middle of the vertical conveying means 39 and operate the left and right horizontal conveying means 40 in this state, the left and right seedling boxes N It is gathered in the center, and two sets of front and rear are made in pairs.

【００６６】そして、縦搬送手段３９を再び作動して計
４枚の苗箱Ｎを、第２移動手段６９で後方移動しながら
デバイダ７３で苗箱Ｎの位置修正をし、正規位置にして
から第１移動手段６８に送りかつ箱昇降機構１１の下部
に供給する。箱昇降機構１１は搬入されてきた苗箱Ｎ
を、受け部材７９Ａ、８０Ａを間欠的に上昇することに
より受け取り、全段に苗箱Ｎが入った状態でプッシャ手
段７８で後方に押し出す。Then, the vertical transport means 39 is operated again to move the total of four seedling boxes N rearward by the second moving means 69, the position of the seedling boxes N is corrected by the divider 73, and the seedling boxes N are returned to their normal positions. It is sent to the first moving means 68 and supplied to the lower part of the box lifting mechanism 11. The box lifting / lowering mechanism 11 receives the seedling box N
Is received by intermittently raising the receiving members 79A and 80A, and is pushed backward by the pusher means 78 in a state where the seedling box N is inserted in all the stages.

【００６７】箱出入機構１２には予め育苗棚８５を配置
しておいて、その育苗棚８５の全受け桟８５Ａに苗箱Ｎ
を収納する。この育苗棚８５はフォークリフトで降ろさ
れかつ所要位置へ運搬される。なお、本発明は前記実施
の形態に限定されるものではなく、種々変形することが
できる。例えば、苗箱展開機Ａ及び苗箱回収機Ｂは、横
長配置の苗箱Ｎを前後２枚セットにして、これを左右一
対で計４枚を１組にして一括処理するように構成してい
るが、苗箱Ｎを縦長配置にしたり、左右一対の装置を片
方のみで構成したりしてもよい。A seedling rack 85 is previously arranged in the box access mechanism 12, and the seedling box N is mounted on all receiving bars 85 A of the seedling rack 85.
To store. The seedling rack 85 is lowered by a forklift and transported to a required position. Note that the present invention is not limited to the above embodiment, and can be variously modified. For example, the seedling box unfolding machine A and the seedling box collecting machine B are configured such that a horizontally long seedling box N is set in front and rear two sets, and a pair of right and left seedling boxes N is processed as a set of four in total. However, the seedling box N may be arranged vertically long, or a pair of left and right devices may be constituted by only one of them.

【００６８】[0068]

【発明の効果】以上詳述した本発明によれば、保持枠９
２を相対昇降するだけで、掛け爪９７が退避状態から略
水平姿勢になって、最上位の苗箱Ｎを引っ掛けて他の積
み重ね苗箱Ｎと迅速に分離でき、保持枠９２を昇降手段
９３で簡単に昇降させて、積み重ね苗箱Ｎを昇降するこ
となく、掛け爪９７に苗箱引っ掛け動作をさせることが
でき、また、４枚の苗箱Ｎの積み重ね苗箱の同時分離動
作もでき、分離作業を能率化することが可能になる。According to the present invention described in detail above, the holding frame 9
2 only by raising and lowering relative to each other, the hanging claws 97 are brought into a substantially horizontal posture from the retracted state, the uppermost seedling box N can be hooked and quickly separated from the other stacked seedling boxes N, and the holding frame 92 is moved up and down by the elevating means 93. Can be easily moved up and down, and without raising / lowering the stacked seedling boxes N, the hooks 97 can be operated to hook the seedling boxes, and the four seedling boxes N can be simultaneously separated from the stacked seedling boxes, Separation work can be streamlined.

【図面の簡単な説明】[Brief description of the drawings]

【図１】本発明の苗箱対地処理機の全体を示す側面説明
図である。FIG. 1 is an explanatory side view showing an entire seedling box-to-ground treatment machine of the present invention.

【図２】苗箱展開機の全体の側面図である。FIG. 2 is a side view of the entire seedling box unfolding machine.

【図３】苗箱展開機の平面図である。FIG. 3 is a plan view of the seedling box unfolding machine.

【図４】苗箱展開機の正面図である。FIG. 4 is a front view of the seedling box unfolding machine.

【図５】苗箱展開機の要部の平面図である。FIG. 5 is a plan view of a main part of the seedling box unfolding machine.

【図６】支持フレーム及び傾動機構の側面図である。FIG. 6 is a side view of the support frame and the tilting mechanism.

【図７】支持フレーム及び搬送枠の平面図である。FIG. 7 is a plan view of a support frame and a transport frame.

【図８】苗箱回収機の全体の側面図である。FIG. 8 is a side view of the entire seedling box collecting machine.

【図９】苗箱回収機の平面図である。FIG. 9 is a plan view of the seedling box collection machine.

【図１０】箱取り上げ機構の側面図である。FIG. 10 is a side view of the box pick-up mechanism.

【図１１】箱取り上げ機構の正面説明図である。FIG. 11 is an explanatory front view of the box pick-up mechanism.

【図１２】箱出入機構の背面図である。FIG. 12 is a rear view of the box access mechanism.

【図１３】箱出入機構の要部の拡大背面図である。FIG. 13 is an enlarged rear view of a main part of the box access mechanism.

【図１４】箱出入機構の平面図である。FIG. 14 is a plan view of the box access mechanism.

【図１５】箱出入機構の側面図である。FIG. 15 is a side view of the box access mechanism.

【図１６】積み重ね箱分離装置の要部の背面図である。FIG. 16 is a rear view of a main part of the stacking box separating device.

【図１７】積み重ね箱分離動作の説明図である。FIG. 17 is an explanatory diagram of a stacking box separating operation.

【図１８】箱出入機構に育苗棚を配置した背面図であ
る。FIG. 18 is a rear view in which a nursery rack is arranged in the box access mechanism.

【符号の説明】[Explanation of symbols]

１ 苗箱展開回収機 ３ 作業ユニット ４ メインユニット ５ 支持フレーム ６ 縦横搬送機構 ７ 傾動機構 ８ 箱取り上げ機構 ９ 走行機体 １０ 箱受渡手段 １１ 箱昇降機構 １２ 箱出入機構 ２１ 搬送枠 ９１ 積み重ね箱分離装置 Ａ 苗箱展開機 Ｂ 苗箱回収機 Ｎ 苗箱 REFERENCE SIGNS LIST 1 seedling box unfolding and collecting machine 3 working unit 4 main unit 5 support frame 6 vertical and horizontal transport mechanism 7 tilting mechanism 8 box pick-up mechanism 9 traveling body 10 box delivery means 11 box elevating mechanism 12 box access mechanism 21 transport frame 91 stacking box separating device A Seedling box unfolding machine B Seedling box collection machine N Seedling box

Claims (3)

【特許請求の範囲】[Claims] 【請求項１】 積み重ね苗箱に対して相対上下動する保
持枠に爪保持体を設け、この爪保持体に苗箱の対辺を引
っ掛ける掛け爪を一対枢支し、この掛け爪を積み重ね最
上段の苗箱の対辺の周縁に対して上から相対下降すると
きに上向き揺動して逃がしかつ下から相対上昇するとき
に略水平姿勢に維持して周縁に引っ掛ける爪姿勢制御手
段を前記保持体に設けていることを特徴とする積み重ね
苗箱分離装置。1. A claw holder is provided on a holding frame which moves up and down relative to a stacked seedling box, and a pair of hooks for hooking opposite sides of the seedling box are pivotally supported on the claw holder. Claw posture control means which swings upward when released relative to the periphery of the opposite side of the seedling box from above and escapes, and is maintained in a substantially horizontal posture when relatively raised from below and hooks on the periphery is provided on the holding body. A stacked seedling box separation device, which is provided. 【請求項２】 前記保持体を積み重ね苗箱を内部に収め
る支持フレームに昇降自在に設け、掛け爪を積み重ね最
上段の苗箱の対辺の周縁より下方まで下降した後に上昇
させて苗箱を引っ掛けて持ち上げるべく、保持体を昇降
させる昇降手段を設けていることを特徴とする請求項１
に記載の積み重ね苗箱分離装置。2. The holder is piled up and down on a support frame for accommodating a seedling box therein, and a hook is stacked and lowered to below the periphery of the opposite side of the uppermost seedling box, and then raised to hook the seedling box. 2. An elevating means for elevating and lowering the holding body so as to lift the holding body.
2. The stacked seedling box separation device according to item 1. 【請求項３】 支持フレームは前後及び左右に４枚を多
段に積み重ねた苗箱を収納し、保持枠は前後及び左右４
枚の苗箱を同時に引っ掛ける爪保持体及び掛け爪を有す
ることを特徴とする請求項２に記載の積み重ね苗箱分離
装置。3. A supporting frame for accommodating four seedling boxes in front and rear and left and right in a multi-stage manner.
The stacked seedling box separation apparatus according to claim 2, further comprising a nail holder and a hook for hooking the seedling boxes at the same time.