JP5130807B2

JP5130807B2 - Root crop excavator

Info

Publication number: JP5130807B2
Application number: JP2007180866A
Authority: JP
Inventors: 二三男黒岩; 弘司向井; 祐治清野
Original assignee: Iseki and Co Ltd
Current assignee: Iseki and Co Ltd
Priority date: 2007-07-10
Filing date: 2007-07-10
Publication date: 2013-01-30
Anticipated expiration: 2027-07-10
Also published as: JP2009017790A

Description

本発明は、地中のジャガイモやタマネギ等の根菜を掘り取り、機外に排出して圃場に並べる根菜掘取機に関するものである。 The present invention relates to a root crop excavator that digs root vegetables such as potatoes and onions in the ground, discharges them outside the machine, and arranges them on a farm field.

従来、根菜掘取機としては、特許文献１に示されるように、トラクタ等の作業車両の後部に装着され、トラクタの牽引動作により移動して掘取刃で地中の根菜を掘り取り、掘り取った根菜を搬送コンベアで機体後部へ搬送し、排出コンベアで根菜を引き継ぎ機体左右外側に根菜を排出して並べるものが存在する。
特開２００６−３２５４７５号公報 Conventionally, as a root crop excavator, as shown in Patent Document 1, it is attached to the rear part of a work vehicle such as a tractor, moved by a tractor's towing operation, and excavated with an excavating blade for excavating the root vegetable in the ground. Some root vegetables are transported to the rear part of the machine body by a conveyor, and the root vegetables are taken over by a discharge conveyor, and the root vegetables are discharged and arranged on the left and right outer sides of the machine body.
JP 2006-325475 A

しかしながら、特許文献１に記載される根菜掘取機は、作業車両が旋回動作をする時等に持ち上げられると前下がり傾斜姿勢になるので、地中から掘り取られて搬送コンベアに搬送されている根菜は搬送コンベアの搬送始端側に向かって逆流して圃場に落下してしまい、人手により根菜を並べ直さねばならないという問題がある。
また、根菜の搬送コンベアの搬送終端部からの排出位置を作業条件に合わせて変更することができないので、圃場に排出した根菜をハーベスタ等の回収手段で能率的に回収できず、回収作業に要する時間や作業者の労力が増大する問題がある。
そして、回収手段が根菜を回収し損なったときは、作業者が根菜を手作業で拾い集める必要があり、作業者の労力がさらに増大する問題がある。
さらに、根菜が搬送コンベアから排出コンベアに引き継がれる際、落下の衝撃で根菜が左右方向に転がると、作業者の意図しない位置から圃場に根菜が落下してしまい、回収作業の前に根菜を並べ直す作業が必要となり、作業者の労力が増大する問題がある。
本発明は、これらの問題を解消しようとするものである。 However, since the root crop excavator described in Patent Document 1 is in a forward and downward tilted posture when the work vehicle is turned, for example, when it is turned, it is dug from the ground and transported to the transport conveyor. There is a problem that the root vegetables flow backward toward the transport start end side of the transport conveyor and fall into the field, and the root vegetables must be rearranged manually.
In addition, since the discharge position of the root vegetable from the conveyance end of the conveyor cannot be changed according to the work conditions, the root vegetable discharged to the field cannot be efficiently recovered by a harvesting means such as a harvester, and is required for the recovery work. There is a problem that time and labor of workers increase.
When the collecting means fails to collect the root vegetables, it is necessary for the worker to manually collect the root vegetables, and there is a problem that the labor of the worker is further increased.
Furthermore, when the root vegetables are transferred from the conveyor to the discharge conveyor, if the root vegetables roll in the left-right direction due to the impact of the drop, the root vegetables fall from the unintended position to the field, and the root vegetables are arranged before collection. There is a problem that the work to be repaired is required and the labor of the worker is increased.
The present invention seeks to eliminate these problems.

請求項１の発明は、圃場から根菜を掘り取る掘取部材（２６）を設け、該掘取部材（２６）の後部に掘り取った根菜を後方に搬送する搬送装置（３２）を設け、該搬送装置（３２）に駆動力を伝動する伝動ベルト（１８）を内装する伝動ケース（１７）を設け、該伝動ベルト（１８）を押圧するテンションローラ（１６）を備えるテンションアーム（１５）を回動自在に設け、前記搬送装置（３２）の搬送始端側に仕切板（４３）を回動自在に設け、該仕切板（４３）を回動させて落下防止作用状態と収納状態に切り替える伸縮自在な仕切板シリンダ（４５）を設け、該仕切板シリンダ（４５）の伸縮を切り替える切替装置（４６）を設け、前記仕切板（４３）に連動して回動する第１連結アーム（６１）を設け、前記テンションアーム（１５）に連動して回動する第２連結アーム（６３）を設け、該第１連結アーム（６１）と第２連結アーム（６３）を連結するクラッチワイヤ（６７）を設けて仕切板（４３）の落下防止作用状態と収納状態の切り替えに連動して搬送装置（３２）への駆動力の伝動を切り替えるクラッチ機構（６８）を構成し、前記仕切板（４３）を落下防止作用状態に切り替えると該クラッチ機構（６８）が作動して搬送装置（３２）への駆動力の伝動を停止すると共に、前記仕切板（４３）を収納状態に切り替えると該クラッチ機構（６８）が作動して搬送装置（３２）に駆動力を伝動する構成とすると共に、前記搬送装置（３２）の後部に根菜を受けて機体外側方向の圃場に根菜を排出する排出装置（５７）を設けたことを特徴とする根菜掘取機とした。 The invention of claim 1, a photo element (26) which takes dug root vegetables from the field provided, the conveying device (32) is provided for conveying the rear digging took root vegetables該掘preparative member (26) rearward, the The transfer device (32) is provided with a transmission case (17) having a transmission belt (18) for transmitting a driving force, and a tension arm (15) including a tension roller (16) for pressing the transmission belt (18) is rotated. The partition plate (43) is rotatably provided on the transport start end side of the transport device (32), and the partition plate (43) is rotated to switch between the fall prevention operation state and the storage state. Provided with a partition plate cylinder (45), a switching device (46) for switching expansion and contraction of the partition plate cylinder (45), and a first connecting arm (61) rotating in conjunction with the partition plate (43). The tension arm (1 The second connecting arm (63) that rotates in conjunction with the first connecting arm (61) and the clutch wire (67) that connects the first connecting arm (61) and the second connecting arm (63) are provided, and the partition plate (43) When the clutch mechanism (68) is configured to switch the transmission of the driving force to the conveying device (32) in conjunction with the switching between the fall prevention operation state and the storage state of the vehicle, and the partition plate (43) is switched to the fall prevention operation state. The clutch mechanism (68) is operated to stop transmission of the driving force to the conveying device (32), and when the partition plate (43) is switched to the retracted state, the clutch mechanism (68) is operated to convey the conveying device. (32) is configured to transmit a driving force, and is provided with a discharge device (57) for receiving root vegetables at a rear portion of the conveying device (32) and discharging the root vegetables to a field in the outer direction of the machine body. A root crop excavator was used.

従って、仕切板（４３）を回動させて搬送装置（３２）の始端側に近接させることによって、仕切板（４３）が搬送装置（３２）の搬送始端側を塞ぐので、根菜掘取機が上昇して前下がり傾斜姿勢になっても搬送装置（３２）の搬送始端側から根菜が落下することが防止される。従って、旋回後に根菜を適正に圃場に並べることができる。 Therefore, by rotating the partition plate (43) and bringing it close to the start end side of the transfer device (32), the partition plate (43) closes the transfer start end side of the transfer device (32). The root vegetables are prevented from falling from the conveyance start end side of the conveyance device (32) even when the vehicle rises to the forward and downward inclination posture. Therefore, root vegetables can be properly arranged on the field after turning.

また、根菜の掘り取り作業中は仕切板（４３）を回動させて収納状態とし、搬送装置（３２）の搬送始端側から離間させておくことによって、仕切板（４３）が根菜の掘り取り作業を妨げるのを防止できる。
そして、切替装置（４６）の操作によって仕切板シリンダ（４５）を伸縮させることにより、仕切板（４３）を離れた場所から落下防止作用状態と収納状態に切り替えることができるので、作業者は根菜掘取機を取り付けたトラクタ等の作業車両を走行させながらであっても仕切板（４３）を落下防止作用状態と収納状態とに切り替えることができる。
さらに、切替装置（４６）を操作して仕切板（４３）を落下防止作用状態に切り替えると、クラッチ機構（６８）が作動して搬送装置（３２）への駆動力の伝動を停止すると共に、仕切板（４３）を収納状態に切り替えると、クラッチ機構（６８）が作動して搬送装置（３２）に駆動力を伝動することにより、仕切板（４３）の切替操作と搬送装置（３２）への駆動力の切替操作を連動させることができる。 In addition, during the operation of digging root vegetables, the partition plate (43) is rotated to be in the stowed state, and is separated from the transport start end side of the transport device (32), so that the partition plate (43) is digged for root vegetables. It can prevent the work from being hindered.
Then, by extending and contracting the partition plate cylinder (45) by operating the switching device (46), the partition plate (43) can be switched from the place where the partition plate (43) is separated to the fall-preventing action state and the storage state. Even while a work vehicle such as a tractor to which the excavator is attached is traveling, the partition plate (43) can be switched between the fall prevention operation state and the storage state.
Further, when the switching device (46) is operated to switch the partition plate (43) to the fall-preventing action state, the clutch mechanism (68) is activated to stop the transmission of the driving force to the transport device (32). When the partition plate (43) is switched to the retracted state, the clutch mechanism (68) is activated to transmit the driving force to the transport device (32), thereby switching the partition plate (43) to the transport device (32). The driving force switching operation can be linked.

請求項２の発明は、前記搬送装置（３２）の搬送方向下手側に左右の支持プレート（３３，３３）を各々回動自在に設け、該左右の支持プレート（３３，３３）に搬送装置（３２）で搬送中の根菜を左右方向中央に案内する左右のガイド取付フレーム（３５，３５）を各々設け、該左右のガイド取付フレーム（３５，３５）の後部に根菜を所定範囲内に集めて排出する左右のガイドプレート（３６，３６）を各々設けたことを特徴とする請求項１記載の根菜掘取機とした。
従って、左右の支持プレート（３３，３３）を各々回動させることにより、左右のガイド取付フレーム（３５，３５）で根菜を搬送装置（３２）の左右方向中央に案内し、左右のガイドプレート（３６，３６）で根菜を所定の幅内に集めてから排出することができる。
請求項３の発明は、前記搬送装置（３２）の搬送終端部に左右の支持アームを各々回動自在に設け、該左右の支持アームに前記排出装置（５７）で搬送する根菜の左右方向への移動を規制する左右の規制アームを各々設けたことを特徴とする請求項１記載の根菜掘取機とした。
従って、左右の支持アームを各々回動させ、左右の規制アームを排出装置（５７）に臨ませることにより、根菜の左右方向への移動を規制することができる。 According to a second aspect of the present invention , left and right support plates (33, 33) are rotatably provided on the lower side in the transport direction of the transport device (32), and the left and right support plates (33, 33) are provided with a transport device ( 32), left and right guide mounting frames (35, 35) for guiding the root vegetables being conveyed to the center in the left-right direction are provided, and the root vegetables are collected within a predetermined range at the rear of the left and right guide mounting frames (35, 35). The root vegetable excavator according to claim 1, wherein left and right guide plates (36, 36) are provided respectively .
Therefore , by rotating the left and right support plates (33, 33), the left and right guide mounting frames (35, 35) guide the root vegetables to the center in the left-right direction of the transport device (32), and the left and right guide plates ( In 36, 36), the root vegetables can be collected within a predetermined width and then discharged.
According to a third aspect of the present invention, left and right support arms are rotatably provided at the transfer terminal portion of the transfer device (32), and the left and right support vegetables are transferred to the left and right support arms by the discharge device (57) in the left-right direction. The root crop excavator according to claim 1, wherein left and right restricting arms for restricting the movement of each are provided.
Therefore, the movement of the root vegetables in the left-right direction can be restricted by rotating the left and right support arms and causing the left and right restriction arms to face the discharging device (57).

請求項１記載の発明によれば、作業車両の旋回時等、根菜掘取機が前下り傾斜姿勢になるときに仕切板（４３）を回動させて落下防止作用状態として搬送装置（３２）の搬送始端側を塞ぐことにより、搬送装置（３２）の搬送始端側から根菜が圃場に落下することを防止できるので、根菜は旋回後に搬送装置（３２）の搬送終端部から適正に圃場に排出されて並べられ、ハーベスタ等の回収手段による回収作業前に作業者が手作業で根菜を並べ直す作業が不要となり、作業者の労力が軽減される。
また、切替装置（４６）を操作して仕切板シリンダ（４５）を伸縮させ、仕切板（４３）を落下防止作用状態と収納状態に切り替えることにより、作業者は根菜掘取機を取り付けたトラクタ等の作業車両を走行させながらであっても仕切板（４３）を落下防止作用状態と収納状態とに切り替えることができるので、旋回前に作業車両を停止させて仕切り板（４３）の切替操作をする必要がなく、作業能率が向上する。
さらに、仕切板（４３）を落下防止作用状態に切り替えるとクラッチ機構（６８）が作動して搬送装置（３２）への駆動力の伝動を停止すると共に、仕切板（４３）を収納状態に切り替えるとクラッチ機構（６８）が作動して搬送装置（３２）に駆動力を伝動する構成としたことにより、切替装置（４６）を操作すると仕切板（４３）の切替操作と搬送装置（３２）への駆動力の切替操作を連動して行なうことができるので、旋回走行の前後で搬送装置（３２）への駆動力の伝動の切替操作が不要となり、作業能率がいっそう向上する。 According to the first aspect of the present invention, when the root vegetable excavator is in the forward and downward inclined posture , for example, when the work vehicle is turning , the partition plate (43) is rotated so as to be in the fall preventing action state. the conveyance start end side of the infarction Gukoto, since root vegetables from the conveyance start end side of the transport device (32) can be prevented from falling into the field, root is the proper field from the conveying end of the conveyor device after turning (32) et al side-by-side is discharged is, the task of the worker before the recovery operation by the recovery means such as a harvester rearranged the root vegetables by hand is not required, and labor of the worker is reduced.
Further, by operating the switching device (46) to expand and contract the partition plate cylinder (45) and switch the partition plate (43) between the fall-preventing action state and the storage state, the operator can attach the root crop excavator. Since the partition plate (43) can be switched between the fall-preventing action state and the storage state even while the work vehicle is traveling, the work vehicle is stopped before turning to switch the partition plate (43). There is no need to perform work and work efficiency is improved.
Further, when the partition plate (43) is switched to the fall-preventing action state, the clutch mechanism (68) is activated to stop transmission of the driving force to the transport device (32), and the partition plate (43) is switched to the storage state. And the clutch mechanism (68) are actuated to transmit the driving force to the conveying device (32), so that when the switching device (46) is operated, the switching operation of the partition plate (43) and the conveying device (32) are performed. Therefore, the operation for switching the transmission of the driving force to the conveying device (32) is not required before and after the turning travel, and the work efficiency is further improved.

そして、根菜の掘り取り作業中は仕切部材（４３）を回動させて収納状態とし、搬送装置（３２）の搬送始端側から離間させておくことにより、仕切板（４３）が根菜の掘り取り作業を妨げることを防止することができるので、根菜の掘り残しや搬送ミスが減少し、作業者が掘り取り作業後に手作業で掘り残した根菜を掘り起こしたり、搬送に失敗した根菜を作業者が並べ直したりする作業が省略され、作業者の労力が軽減される。 The dug up during operation of the root vegetable is a stored state by rotating the partition member (43), by keeping is separated from the conveyance start end side of the transport device (32), digging a partition plate (43) root vegetables since it is possible to prevent interfering with the work, digging leaving and transport mistake of root vegetables is reduced, or dig up the roots leaving digging by hand after the worker digging up work, the operator of the root vegetables that failed to transport The work of rearranging is omitted, and the labor of the worker is reduced.

また、根菜を複数条に亘って適正に並べることにより、ハーベスタ等の回収手段で圃場に並んだ根菜を一度にまとめて回収することができるので、回収作業にかかる時間や動作が軽減され、作業能率が向上する。 Further, by arranging properly over the root vegetables to multiple conditions, it can be recovered collectively root vegetables arranged in the field in a recovery means such as Ha Besuta at a time, the time and the operation according to the recovery operation is reduced, Work efficiency is improved.

請求項２記載の発明によれば、請求項１記載の発明の効果に加えて、左右の支持プレート（３３，３３）を各々回動させることにより、左右のガイド取付フレーム（３５，３５）で根菜を搬送装置（３２）の左右方向中央に案内し、左右のガイドプレート（３６，３６）で根菜を所定の幅内に集めてから排出することができるので、ハーベスタ等の回収手段で回収しやすい幅に根菜が並ぶため、回収作業の時間が短縮されて作業能率が向上すると共に、作業者の労力が軽減される。
また、回収手段で回収し損なった根菜を作業者が手作業で拾い集める必要がなく、作業者の労力が軽減される。
請求項３記載の発明によれば、請求項１記載の発明の効果に加えて、左右の規制アームを排出装置（５７）に臨ませることにより、根菜の左右方向への移動を規制することができるので、根菜が搬送装置（３２）の搬送終端部から排出された際、排出装置（５７）上を左右方向に転がることがあっても、根菜が作業者が意図しない位置から圃場に排出されることが防止され、回収作業前に根菜を並べなおす作業が不要となり、作業者の労力が軽減される。 According to the invention described in claim 2, in addition to the effect of the invention described in claim 1 , the left and right guide mounting frames (35, 35) are respectively rotated by rotating the left and right support plates (33, 33). The root vegetables can be guided to the center in the left-right direction of the transport device (32), and the left and right guide plates (36, 36) can collect the root vegetables within a predetermined width and then discharge them. Since the root vegetables are lined up in an easy width, the time for the collection work is shortened, the work efficiency is improved, and the labor of the worker is reduced.
In addition, it is not necessary for the operator to manually collect root vegetables that are missed by the recovery means, and the labor of the operator is reduced.
According to the invention described in claim 3, in addition to the effect of the invention described in claim 1, by restricting the left and right restricting arms to the discharging device (57), the movement of the root vegetables in the left-right direction can be restricted. Therefore, even when the root vegetables are discharged from the conveyance end portion of the conveying device (32), the root vegetables are discharged from the position not intended by the operator to the field even if the root vegetables may roll in the left-right direction. This eliminates the need for rearranging the root vegetables before the collection operation, and reduces the labor of the operator.

本発明の実施の形態について、一実施例としてトラクタ等の作業車両に装着し、地中のタマネギを掘り取ると共に機外に排出して整列させるタマネギ掘取機を説明する。
図１〜５に示すように、タマネギ掘取機は、トラクタのＰＴＯ軸から受ける駆動力を各部へ伝動する伝動部Ａと、地中からタマネギを掘り取り機体後方へと搬送する掘取搬送部Ｂと、仕切板を回動させて搬送装置の搬送始端側の開閉を切り替える仕切部Ｃと、掘取搬送部Ｂからタマネギを引き継いで機体左右外側方向に排出する排出搬送部Ｄとから構成される。 An embodiment of the present invention will be described as an example of an onion excavator that is mounted on a work vehicle such as a tractor, excavates onion in the ground, and discharges it outside the apparatus to align it.
As shown in FIGS. 1 to 5, the onion excavator includes a transmission part A that transmits the driving force received from the PTO shaft of the tractor to each part, and an excavation transport part that transports the onion from the ground to the rear of the machine body. B, a partition part C that switches the opening and closing of the transport start end side of the transport device by rotating the partition plate, and a discharge transport part D that takes over the onion from the digging transport part B and discharges it to the left and right outer sides of the machine body. The

先ず、伝動部Ａの構成について説明する。
トラクタ１のＰＴＯ軸２にユニバーサルジョイント３の一側を取り付け、該ユニバーサルジョイント３の他側を第１伝動ケース４の受軸５に取り付ける。また、該第１伝動ケース４の左右一側の出力軸に伝動軸カバー６に内装する伝動軸７の左右一側を軸着すると共に、駆動力伝動ケース４の左右他側の出力軸に第２伝動ケース８に内装する駆動スプロケット９を軸着する。そして、該伝動軸カバー６と第２伝動ケース８の下部に連結フレーム１０を取り付け、該連結フレーム１０の前部にトラクタ１のトップリンクと連結する左右トップリンク連結アーム１１，１１を取り付けると共に、連結フレーム１０の下部にトラクタ１の左右ロワーリンクと連結する左右ロワーリンク連結アーム１２，１２を取り付ける。さらに、前記伝動軸７の左右他側に軸着する駆動プーリ１３と回転自在な従動プーリ１４と回動自在なテンションアーム１５に回転自在に取り付けたテンションプーリ１６とを内装する第３伝動ケース（伝動ケース）１７を前記伝動軸カバー６の左右他側に取り付けると共に、該駆動プーリ１３と従動プーリ１４とテンションプーリ１６との間に伝動ベルト１８を無端状に巻き掛ける。また、前記第２伝動ケース８の上部に従動スプロケット１９を回転自在に内装し、テンションスプロケット２０を回転自在に装着したテンションアーム２１を内装すると共に、前記駆動スプロケット９と従動スプロケット１９とテンションスプロケット２０との間に伝動チェーン２１を無端状に巻き掛ける。そして、前記従動スプロケット１９に伝動軸２２の左右一側を軸着し、該伝動軸２２の左右他側を油圧ポンプ７０に取り付けることによって、伝動部Ａが構成される。 First, the structure of the transmission part A is demonstrated.
One side of the universal joint 3 is attached to the PTO shaft 2 of the tractor 1, and the other side of the universal joint 3 is attached to the receiving shaft 5 of the first transmission case 4. The left and right sides of the transmission shaft 7 housed in the transmission shaft cover 6 are attached to the left and right output shafts of the first transmission case 4, and the left and right output shafts of the driving force transmission case 4 are connected to the left and right output shafts. (2) A drive sprocket 9 provided in the transmission case 8 is attached to the shaft. Then, a connecting frame 10 is attached to the lower part of the transmission shaft cover 6 and the second transmission case 8, and left and right top link connecting arms 11, 11 for connecting to the top link of the tractor 1 are attached to the front portion of the connecting frame 10, Left and right lower link connecting arms 12 and 12 connected to the left and right lower links of the tractor 1 are attached to the lower part of the connecting frame 10. Further, a third transmission case (not shown) that includes a drive pulley 13 that is pivotally mounted on the left and right sides of the transmission shaft 7, a rotatable driven pulley 14, and a tension pulley 16 that is rotatably attached to a rotatable tension arm 15 ( A transmission case 17 is attached to the left and right sides of the transmission shaft cover 6, and a transmission belt 18 is wound endlessly between the drive pulley 13, the driven pulley 14, and the tension pulley 16. Further, a driven sprocket 19 is rotatably mounted on the upper part of the second transmission case 8, a tension arm 21 is rotatably mounted on the tension sprocket 20, and the drive sprocket 9, the driven sprocket 19, and the tension sprocket 20 are also mounted. The transmission chain 21 is wound endlessly between the two. The left and right sides of the transmission shaft 22 are attached to the driven sprocket 19, and the left and right other sides of the transmission shaft 22 are attached to the hydraulic pump 70 to constitute the transmission portion A.

なお、図２に示す第３伝動ケース１７は、内部構造を把握しやすくするため、外側のカバーを外した状態である。
次に、掘取搬送部Ｂについて説明する。 In addition, the 3rd transmission case 17 shown in FIG. 2 is the state which removed the outer cover, in order to make it easy to grasp | ascertain an internal structure.
Next, the excavation conveyance part B is demonstrated.

前記連結フレーム１０の左右端部に左右連結プレート２３，２３を取り付け、該左右連結プレート２３，２３の左右一側下部に右サイドカバー２４Ｒを取り付けると共に、左右連結プレート２３，２３の左右他側下部と前記第３伝動ケースとの間に左サイドカバー２４Ｌを取り付ける。また、該左右サイドカバー２４Ｌ，２４Ｒの前端部に左右ガイドカバー２５，２５を取り付け、該左右サイドカバー２４Ｌ，２４Ｒの前部左右間に掘取刃２６を機体前後方向にボルト等で位置調節自在に取り付けると共に、左右駆動スプロケット２７，２７を軸着したコンベア駆動軸２８を回転自在に取り付ける。そして、該コンベア駆動軸２８の左右一側を前記従動プーリ１４に軸着し、左右サイドカバー２４Ｌ，２４Ｒの前部内側に左右従動ローラ２９，２９を回転自在に装着すると共に、該左右従動ローラ２９，２９の左右間にコンベア従動軸３０を取り付ける。さらに、該コンベア従動軸３０とコンベア駆動軸２８との間に、左右の枠の間に所定間隔ごとに棒材を配置して構成した搬送帯３１を無端状に巻き掛けて搬送コンベア３２を構成する。そして、前記左右サイドカバー２４Ｌ，２４Ｒの後側上部に左右支持プレート３３，３３を機体左右方向に回動自在に取り付けると共に、該左右支持プレート３３，３３に左右支持アーム３４，３４の基部を取り付ける。また、該左右支持アーム３４，３４の端部に左右ガイド取付フレーム３５，３５を取り付けると共に、該左右ガイド取付フレーム３５，３５の後部に排出コンベア３２からタマネギを直接圃場に排出する際、タマネギを一定範囲内に集める左右ガイドプレート３６，３６を取り付ける。そして、左右サイドカバー２４Ｌ，２４Ｒの後端部に上下回動自在な左右支持アームを取り付けると共に、該左右支持アームに後述する排出搬送部Ｄの排出コンベア５７上でタマネギの動きを規制する左右規制アームを取り付ける。さらに、前記左右サイドカバー２４Ｌ，２４Ｒの後側下部に左右ボス３７，３７を取り付け、該左右ボス３７，３７に複数の穴を開けた左右橇体支持アーム３８，３８を挿入してロックピンやボルト・ナット等で任意の高さに固定すると共に、該左右橇体支持アーム３８，３８の下部に左右橇体３９，３９を機体上下方向に回動自在に取り付ける。そして、該左右橇体３９，３９の前端部を左右回動アーム４０，４０の基部に固定すると共に、該左右回動アーム４０，４０の端部を左右サイドカバー２４Ｌ，２４Ｒに機体上下方向に回動自在に取り付けることによって、掘取搬送部Ｂが構成される。 The left and right connecting plates 23, 23 are attached to the left and right ends of the connecting frame 10, the right side cover 24R is attached to the left and right side lower portions of the left and right connecting plates 23, 23, and the left and right other side lower portions of the left and right connecting plates 23, 23 are attached. A left side cover 24L is attached between the first transmission case and the third transmission case. Also, left and right guide covers 25, 25 are attached to the front end portions of the left and right side covers 24L, 24R, and the position of the digging blade 26 between the front left and right sides of the left and right side covers 24L, 24R can be adjusted with bolts or the like. At the same time, a conveyor drive shaft 28 having left and right drive sprockets 27 and 27 attached thereto is rotatably attached. The left and right sides of the conveyor drive shaft 28 are attached to the driven pulley 14, and left and right driven rollers 29 and 29 are rotatably mounted inside the front portions of the left and right side covers 24L and 24R. A conveyor driven shaft 30 is attached between the left and right sides of 29 and 29. Further, a conveyor belt 32 is constructed by winding a conveyor belt 31 formed by arranging rods at predetermined intervals between the left and right frames between the conveyor driven shaft 30 and the conveyor drive shaft 28 in an endless manner. To do. The left and right support plates 33 and 33 are attached to the upper rear portions of the left and right side covers 24L and 24R so as to be rotatable in the left and right direction of the machine body, and the bases of the left and right support arms 34 and 34 are attached to the left and right support plates 33 and 33. . In addition, the left and right guide mounting frames 35 and 35 are attached to the ends of the left and right support arms 34 and 34, and the onion is directly discharged from the discharge conveyor 32 to the rear part of the left and right guide mounting frames 35 and 35. The left and right guide plates 36, 36 that are collected within a certain range are attached. Then, the left and right side covers 24L, is attached to upper and lower rotatable lateral support arm on the rear end portion of the 24R, to restrict the movement of the onions on the discharge conveyor 57 of the discharge conveyance unit D, which will be described later in left and right support arm attaching the left and right regulatory arm. Further, left and right bosses 37, 37 are attached to the lower rear portions of the left and right side covers 24L, 24R, and left and right skeleton support arms 38, 38 having a plurality of holes are inserted into the left and right bosses 37, 37, and lock pins, While fixing to arbitrary height with a volt | bolt, a nut, etc., the left-right frame 39,39 is attached to the lower part of this left-right frame support arm 38,38 so that rotation to the up-down direction of a body is possible. The front ends of the left and right casings 39, 39 are fixed to the bases of the left and right pivot arms 40, 40, and the ends of the left and right pivot arms 40, 40 are attached to the left and right side covers 24L, 24R in the vertical direction of the body. The excavation conveyance part B is comprised by attaching rotatably.

上記構成によれば、搬送コンベア３２を構成する搬送帯３１は所定間隔ごとに空間部を有しているため、タマネギに付着している泥土を搬送帯３１で搬送しながら下方に落とすことができるので、収穫後にタマネギから泥土を取り除く作業が軽減されるので、作業者の労力が軽減される。 According to the said structure, since the conveyance belt | band | zone 31 which comprises the conveyance conveyor 32 has a space part for every predetermined interval, it can drop down, conveying the mud adhering to an onion with the conveyance belt | band | zone 31. Therefore, since the work of removing mud from the onion after harvesting is reduced, the labor of the operator is reduced.

また、タマネギは適度に乾燥させておくと長期間鮮度を維持することができるため、圃場に掘り出した後天日により乾燥させることがあるが、搬送帯３１で搬送している最中にタマネギに付着した泥土を除去しておくことによって、タマネギの表面が天日に晒されて乾燥し易くなるので、タマネギの品質を長期に亘って保持することができ、タマネギの商品価値を向上させることができる。 In addition, since the onion can maintain freshness for a long time if it is dried appropriately, it may be dried by the sun after it is dug in the field, but it adheres to the onion while it is being transported in the transport belt 31. By removing the muddy soil, the surface of the onion is exposed to the sun and becomes easy to dry, so the quality of the onion can be maintained for a long time, and the commercial value of the onion can be improved. .

そして、搬送コンベア３２から直接圃場にタマネギを排出する場合、タマネギを一定範囲内に集める左右ガイドプレート３６，３６を設けたことによって、タマネギが圃場に散らばってしまうことを防止できると共に、均等な左右幅にタマネギを整列させることができるので、大型のハーベスタ等で圃場に並んだタマネギを一度にまとめて回収することができるので、回収作業にかかる時間や動作が軽減され、作業能率が向上する。 When the onions are discharged directly from the conveyor 32 to the field, the left and right guide plates 36, 36 for collecting the onions within a certain range can be provided, so that the onions can be prevented from being scattered in the field and the right and left Since the onions can be aligned to the width, the onions lined up in the field can be collected at once with a large harvester or the like, so that the time and operation required for the collection work are reduced and the work efficiency is improved.

また、左右ガイドプレート３６，３６を備える左右ガイド取付フレーム３５，３５を支持する左右支持プレート３３，３３が機体左右方向に回動自在であることによって、タマネギを直接圃場に落下させる場合は左右支持プレート３３，３３の左右どちらか一方或いは両方を機体内側方向に回動させると、タマネギを圃場に一定範囲に整列させることができる。なお、左右どちらか一方のガイドプレート３６だけを用いる場合は６条、左右ガイドプレート３６，３６を用いる場合は４条に並べることができる。一方、搬送コンベア３２から後述する排出搬送部Ｄの排出コンベア５７にタマネギを排出するときは、左右支持アーム３３，３３を機体外側方向に回動させることにより、搬送コンベア３２の左右幅全体から排出搬送部Ｄの排出コンベア５７にタマネギを排出することができるので、排出コンベア５７はタマネギを均等に圃場に落下させて並べることができ、大型のハーベスタ等で圃場に並んだタマネギを一度にまとめて回収することができるようになり、回収作業にかかる時間や動作が軽減され、作業能率が向上する。 In addition, the left and right support plates 33 and 33 that support the left and right guide mounting frames 35 and 35 including the left and right guide plates 36 and 36 are rotatable in the left and right directions of the machine body, so that the left and right support is provided when the onion is dropped directly onto the field. When either one or both of the right and left of the plates 33 and 33 are rotated toward the inside of the machine body, the onion can be aligned in a certain range on the field. When only one of the left and right guide plates 36 is used, the strips can be arranged in 6 strips, and when using the left and right guide plates 36 and 36, they can be arranged in 4 strips. On the other hand, when the onion is discharged from the transfer conveyor 32 to the discharge conveyor 57 of the discharge transfer section D, which will be described later, the left and right support arms 33 and 33 are rotated in the outer direction of the machine body to discharge from the entire left and right width of the transfer conveyor 32. Since the onion can be discharged to the discharge conveyor 57 of the transport unit D, the discharge conveyor 57 can drop the onion evenly onto the field and arrange it, and collect the onions lined up on the field at once with a large harvester or the like. It becomes possible to collect, the time and operation required for the collection work are reduced, and the work efficiency is improved.

さらに、左右橇体３９，３９を左右橇体支持アーム３８，３８の下部に機体上下方向に回動自在に取り付けると共に、左右サイドカバー２４Ｌ，２４Ｒに機体上下方向に回動自在に取り付けた左右回動アーム４０，４０の基部を左右橇体３９，３９の前端部に取り付けたことによって、左右橇体３９，３９が圃場の起伏に沿ってタマネギ掘取機の作業高さを自動的に変更することができるので、タマネギの掘り取りや搬送が安定し、作業能率が向上する。 Further, the left and right housings 39, 39 are attached to the lower portions of the left and right housing support arms 38, 38 so as to be rotatable in the vertical direction of the machine body, and are attached to the left and right side covers 24L, 24R so as to be rotatable in the vertical direction of the machine body. By attaching the bases of the moving arms 40, 40 to the front ends of the left and right frames 39, 39, the left and right frames 39, 39 automatically change the working height of the onion digger along the ups and downs of the field. As a result, the digging and transporting of the onion is stabilized, and the work efficiency is improved.

次に、仕切部Ｃについて説明する。
前記左右連結プレート２３，２３に左右支持プレート４１，４１を取り付け、該左右支持プレート４１，４１の左右間に仕切板回動軸４２を機体上下方向に回動自在に取り付ける。また、該仕切板回動軸４２の前端部に掘取搬送部Ｂの前端部を塞ぐ左右幅及び上下幅の仕切板４３を取り付けると共に、前記連結フレーム１０の左右一端上部に支持フレーム４４を取り付ける。そして、該支持フレーム４４の上部に仕切板シリンダ４５の基部を取り付けると共に、該仕切板シリンダ４５の端部を支持フレーム４４を取り付けた側の支持プレート４１の外側から仕切板回動軸４２に取り付ける。さらに、該仕切板シリンダ４５を伸縮させる切替スイッチ４６をトラクタ１に取り付けると共に、該切替スイッチ４６と仕切板シリンダ４５とをケーブル４７で連結することによって、仕切部Ｃが構成される。 Next, the partition part C will be described.
Left and right support plates 41 and 41 are attached to the left and right connecting plates 23 and 23, and a partition plate rotation shaft 42 is attached between the left and right sides of the left and right support plates 41 and 41 so as to be rotatable in the vertical direction of the machine body. Further, a left and right width and vertical width partition plate 43 that covers the front end portion of the excavation transport unit B is attached to the front end portion of the partition plate rotation shaft 42, and a support frame 44 is attached to the upper left and right end portions of the connection frame 10. . The base of the partition plate cylinder 45 is attached to the upper portion of the support frame 44, and the end of the partition plate cylinder 45 is attached to the partition plate rotation shaft 42 from the outside of the support plate 41 on the side where the support frame 44 is attached. . Further, a partition switch C is configured by attaching to the tractor 1 a changeover switch 46 that extends and contracts the partition plate cylinder 45 and connecting the switch 46 and the partition plate cylinder 45 with a cable 47.

なお、本件実施例の仕切板シリンダ４５は電動シリンダであるが、油圧シリンダやエアシリンダで構成してもよい。
上記構成によれば、仕切板４３が仕切板シリンダ４５によって機体上下方向に回動して掘取搬送部Ｂの前端部を塞ぐことにより、トラクタ１が畝の端で旋回する際にタマネギ掘取機をリフトして前下がり傾斜姿勢にさせて搬送コンベア３２上のタマネギが掘取搬送部Ｂの前端側に転がっても、仕切板４３がタマネギの圃場への落下を防止するため、タマネギはトラクタ１の旋回後に掘取搬送部Ｂの搬送コンベア３２から機体後方に排出、もしくは排出搬送部Ｄの排出コンベア５７から機体外側方向に排出されて圃場に適正に並べられるので、作業者が手作業でタマネギを圃場に並べ直す作業を省略でき、作業者の労力が軽減される。 In addition, although the partition plate cylinder 45 of the present embodiment is an electric cylinder, it may be constituted by a hydraulic cylinder or an air cylinder.
According to the above configuration, the partition plate 43 is rotated in the vertical direction by the partition plate cylinder 45 to close the front end portion of the digging transport unit B, so that the onion digging is performed when the tractor 1 turns at the end of the ridge. Since the partition plate 43 prevents the onion from falling onto the field, even if the onion on the conveyor 32 rolls to the front end side of the digging and conveying section B by lifting the machine to a downwardly inclined posture, the onion is a tractor After the turn of 1, it is discharged from the conveyor 32 of the excavating and conveying section B to the rear of the machine body, or discharged from the discharge conveyor 57 of the discharging and conveying section D to the outer side of the machine body and properly arranged on the field. The work of rearranging the onions on the field can be omitted, and the labor of the operator is reduced.

また、タマネギの掘り取り作業中は仕切板４３を回動させて搬送コンベア３２の搬送始端側から離間させておくことによって、仕切板４３がタマネギの掘り取り作業を妨げるのを防止できるので、タマネギの掘り残しや搬送ミスが減少し、作業者が掘り取り作業後に手作業で掘り残したタマネギを掘り起こしたり、搬送に失敗したタマネギを並べ直したりする作業が省略され、作業者の労力が軽減される。 Further, during the onion digging operation, the partition plate 43 is rotated and separated from the transfer start end side of the transfer conveyor 32, so that the partition plate 43 can be prevented from obstructing the onion digging operation. This reduces the amount of leftover digging and transport mistakes, and eliminates the need for workers to dig up onions that have been dug up manually after digging up and rearrange onions that failed to be transported. The

そして、仕切板４３を回動させる仕切板シリンダ４５の伸縮を切り替える切替スイッチ４６をトラクタ１に設けたことによって、作業者はトラクタ１を操縦しながら仕切板４３を開閉させることができるので、作業能率が向上する。 Further, by providing the tractor 1 with the changeover switch 46 for switching the expansion and contraction of the partition plate cylinder 45 that rotates the partition plate 43, the operator can open and close the partition plate 43 while operating the tractor 1. Efficiency is improved.

次に、排出搬送部Ｄについて説明する。
前記左右サイドカバー２４Ｌ，２４Ｒの後部下部に左右支持フレーム４８，４８を取り付けると共に、該左右支持フレーム４８，４８の終端部を回動支点として載置台４９を機体上下方向に回動自在に取り付ける。そして、該載置台４９と載置台４９を設けた側の支持フレーム４８との間に電動式の排出部シリンダ５０を取り付け、該載置台４９の上部に、タマネギ掘取機の左右幅よりも左右方向に長い前後コンベアフレーム５１，５１を取り付けると共に、後コンベアフレーム５１上にガイドプレート５１ａを取り付ける。また、前後コンベアフレーム５１，５１の左右端部のうち、機体外側方向に突出した側の前後間に駆動ローラ５２を回転自在に装着し、他端側の前後間に従動ローラ５３を回転自在に取り付けると共に、駆動ローラ５２と従動ローラ５３との左右間に複数のテンションローラ５４…を回転自在に取り付ける。そして、該駆動ローラ５２と従動ローラ５３と複数のテンションローラ５４…とに排出ベルト５５を無端状に巻き掛けると共に、駆動ローラ５２に正逆転自在である油圧モータ５６を取り付けて、掘取搬送部Ｂの搬送コンベア３２から排出されるタマネギを受けて機体左右外側方向に排出して並べる排出コンベア５７を構成する。さらに、前記伝動部Ａの油圧ポンプ７０と排出コンベア５７を構成する油圧モータ５６とを正逆送油ケーブル５８ａ，５８ｂで連結し、油圧ポンプ７０の上部にポンプカバー５９を取り付けると共に、該ポンプカバー５９の上部に油圧ポンプ７０内の油の流れを切り替える正逆転切替レバー６０を取り付けることによって、排出搬送部Ｄが構成される。なお、該正逆転レバー６０はトラクタ１に向かって先端部を突出させて取り付ける。 Next, the discharge conveyance unit D will be described.
The left and right support frames 48, 48 are attached to the lower rear portions of the left and right side covers 24L, 24R, and the mounting table 49 is attached to be pivotable in the vertical direction of the machine body with the end portions of the left and right support frames 48, 48 as pivot points. Then, an electric discharge cylinder 50 is attached between the mounting table 49 and the support frame 48 on the side where the mounting table 49 is provided, and the upper part of the mounting table 49 is set to the left and right widths of the onion excavator. The front and rear conveyor frames 51, 51 that are long in the direction are attached, and the guide plate 51 a is attached on the rear conveyor frame 51. A driving roller 52 is rotatably mounted between the left and right end portions of the front and rear conveyor frames 51 and 51 on the side protruding in the outer direction of the machine body, and the driven roller 53 is rotatable between the front and rear sides on the other end side. At the same time, a plurality of tension rollers 54 are rotatably mounted between the left and right of the drive roller 52 and the driven roller 53. A discharge belt 55 is wound endlessly around the drive roller 52, driven roller 53, and a plurality of tension rollers 54, and a hydraulic motor 56 that can freely rotate forward and backward is attached to the drive roller 52, and a digging and conveying unit A discharge conveyor 57 is configured to receive the onion discharged from the transfer conveyor 32 of B and discharge and arrange it in the left and right outer direction of the machine body. Further, the hydraulic pump 70 of the transmission section A and the hydraulic motor 56 constituting the discharge conveyor 57 are connected by forward and reverse oil feed cables 58a and 58b, and a pump cover 59 is attached to the upper part of the hydraulic pump 70. By attaching a forward / reverse switching lever 60 for switching the flow of oil in the hydraulic pump 70 to the upper part of 59, the discharge conveyance section D is configured. The forward / reverse lever 60 is attached with its tip projecting toward the tractor 1.

上記構成によれば、載置台４９が排出部シリンダ５０の伸縮によって上下動することによって、排出部シリンダ５０を伸ばして載置台４９を上昇させると左右支持フレーム４８，４８の左右間の空間部が現れるため、掘取搬送部Ｂの搬送コンベア３２からタマネギを圃場に排出して並べる作業を行うことができると共に、排出部シリンダ５０を縮めて載置台４９を下降させると排出コンベア５７が搬送コンベア３２からタマネギを受けて、機体左右外側方向に排出して並べる作業を行うことができるので、タマネギを大型のハーベスタ等で回収しやすい幅に隙間無く並べることができ、回収作業の際に回収し損なうタマネギが減るため、作業者が回収作業後にタマネギを圃場から回収する作業が省略され、作業者の労力が軽減される。 According to the above configuration, when the mounting table 49 moves up and down by the expansion and contraction of the discharge unit cylinder 50, when the discharge unit cylinder 50 is extended to raise the mounting table 49, the space between the left and right support frames 48, 48 is left and right. Thus, the onion can be discharged from the transfer conveyor 32 of the excavation transfer section B to the field and arranged, and the discharge conveyor 57 is moved to the transfer conveyor 32 by lowering the discharge section cylinder 50 and lowering the mounting table 49. The onion can be received and discharged to the left and right outside of the aircraft, and can be arranged in a line, so the onion can be arranged in a width that is easy to collect with a large harvester, etc., and there is no gap in the collection work. Since the number of onions is reduced, the work of collecting the onion from the field after the collection work is omitted, and the labor of the worker is reduced.

また、正逆転切替レバー６０の操作により排出コンベア５７の排出方向を自在に切り替えることができるので、掘り取り作業の方向に応じてタマネギを排出する方法を決めることができるので、タマネギを大型のハーベスタ等で回収しやすい幅に隙間無く並べることができ、回収作業の際に回収し損なうタマネギが減るため、作業者が回収作業後にタマネギを圃場から回収する作業が省略され、作業者の労力が軽減される。 In addition, since the discharge direction of the discharge conveyor 57 can be freely switched by operating the forward / reverse switching lever 60, a method for discharging the onion can be determined according to the direction of the digging operation, so that the onion can be a large harvester. Can be arranged without gaps in the width that is easy to collect, etc., and the number of onions that cannot be collected during the collection work is reduced, so that the work of collecting the onion from the field after the collection work is omitted, reducing the labor of the worker Is done.

そして、正逆転切替レバー６０の先端部をトラクタ１に向けて突出させていることによって、作業者はトラクタ１に搭乗したまま手を伸ばすだけで正逆転切替レバー６０を操作することができるので、排出コンベア５７の排出方向を切り替える際にトラクタ１を停止させる必要がないので、作業能率が向上する。 And by making the front-end | tip part of the forward / reverse switching lever 60 protrude toward the tractor 1, the operator can operate the forward / reverse switching lever 60 only by reaching out while riding on the tractor 1. Since it is not necessary to stop the tractor 1 when switching the discharge direction of the discharge conveyor 57, work efficiency is improved.

以下、本件タマネギ掘取機の別実施例について説明する。
図６、図７で示すように、仕切部Ｃの仕切板回動軸４２の左右端のうち、第３伝動ケース１７を取り付けた側に連結アーム（第１連結アーム）６１の基部を取り付け、該連結アーム６１の端部の左右に溝部を切り欠いた左右スライド板６２，６２を配置し、該左右スライド板６２，６２の溝部と連結アーム６１の端部とをボルト等でスライド可能に連結する。また、第３伝動ケース１７に内装する伝動ベルト１８を張圧するテンションローラ１６を回転自在に装着したテンションアーム１５の回動軸１５ａの端部に連結アーム（第２連結アーム）６３の基部を取り付け、該連結アーム６３の端部を支持部材６４に回動自在に取り付けると共に、第３伝動ケース１７の内側とテンションアーム１５とをスプリング６５で連結する。そして、前記左右スライド板６２，６２に連結部材６６を取り付けると共に、該連結部材６６と支持部材６４とをクラッチワイヤ６７で連結することによって、仕切部Ｃの開閉の切り替えに連動して掘取搬送部Ｂの駆動力伝動を切り替えるクラッチ機構６８を構成する。このとき、伝動ベルト１８はテンションローラ１６に張圧されなければ回転が止まるように装着する。 Hereinafter, another embodiment of the onion digger will be described.
As shown in FIGS. 6 and 7, the base of the connection arm (first connection arm) 61 is attached to the left and right ends of the partition plate rotation shaft 42 of the partition portion C on the side where the third transmission case 17 is attached. Left and right slide plates 62, 62 with grooves notched are arranged on the left and right of the end of the connecting arm 61, and the grooves of the left and right slide plates 62, 62 and the end of the connecting arm 61 are slidably connected with bolts or the like. To do. Further, a base portion of a connecting arm (second connecting arm) 63 is attached to an end of a rotating shaft 15a of a tension arm 15 in which a tension roller 16 for tensioning a transmission belt 18 provided in the third transmission case 17 is rotatably mounted. The end of the connecting arm 63 is rotatably attached to the support member 64, and the inside of the third transmission case 17 and the tension arm 15 are connected by a spring 65. Then, a connecting member 66 is attached to the left and right slide plates 62, 62, and the connecting member 66 and the support member 64 are connected by a clutch wire 67, thereby excavating and transporting in conjunction with switching of opening and closing of the partition portion C. A clutch mechanism 68 for switching the driving force transmission of the part B is configured. At this time, the transmission belt 18 is mounted so that the rotation is stopped unless it is tensioned by the tension roller 16.

なお、図６及び図７の第３伝動ケース１７は、内部の構造を把握しやすくするために、外側のカバーを外した状態を示している。
上記構成によれば、仕切板４３を開くとテンションアーム１５がクラッチワイヤ６７に引っ張られて下方回動し、テンションローラ１６が伝動ベルト１８を張圧して駆動力を伝動するようになるため、掘取搬送部Ｂの搬送コンベア３２が駆動して掘り取ったタマネギを後部に搬送することができる。一方、仕切板４３を閉じるとテンションアーム１５を引っ張っていたクラッチワイヤ６７が弛み、テンションアーム１５を取り付ける連結アーム６３の機体後方への移動に連動してテンションアーム１５も機体後方に移動するため、テンションプーリ１６が伝動ベルト１８から離間して伝動ベルト１８の張りが弛むので、掘取搬送部Ｂへの駆動力の伝動が停止し、掘取搬送部Ｂの搬送コンベア３２を停止させることができる。 The third transmission case 17 in FIGS. 6 and 7 shows a state in which the outer cover is removed in order to make it easier to grasp the internal structure.
According to the above configuration, when the partition plate 43 is opened, the tension arm 15 is pulled by the clutch wire 67 and rotates downward, and the tension roller 16 tensions the transmission belt 18 to transmit the driving force. The onion dug by driving the conveyor 32 of the picking and conveying part B can be conveyed to the rear part. On the other hand, when the partition plate 43 is closed, the clutch wire 67 that has pulled the tension arm 15 is loosened, and the tension arm 15 moves to the rear of the machine in conjunction with the movement of the connecting arm 63 to which the tension arm 15 is attached. Since the tension pulley 16 is separated from the transmission belt 18 and the tension of the transmission belt 18 is loosened, the transmission of the driving force to the digging and conveying unit B is stopped, and the conveying conveyor 32 of the digging and conveying unit B can be stopped. .

従って、仕切板４３の開閉を切替スイッチ４６で切り替えることによって、掘取搬送部Ｂへの駆動力伝動の切替を連動して行うことができるので、作業者は旋回前にトラクタ１のＰＴＯ軸２の回転を停止させ、旋回後にＰＴＯ軸２の回転を再開させる操作を省略できるようになるので、作業能率が向上する。 Therefore, by switching the opening / closing of the partition plate 43 with the changeover switch 46, the driving force transmission to the excavation conveyance unit B can be switched in conjunction with each other, so that the operator can turn the PTO shaft 2 of the tractor 1 before turning. the rotary is stopped, so it becomes possible to omit the operation for restarting the rotation of the P tO shaft 2 after the turning, thereby improving the working efficiency.

根菜掘取機を装着したトラクタの側面図Side view of a tractor equipped with a root crop excavator 根菜掘取機の左側面図Left side view of root crop excavator 根菜掘取機の右側面図Right side view of root crop excavator 根菜掘取機の平面図Top view of root crop excavator 根菜掘取機の伝動機構図Transmission mechanism diagram of root crop excavator 根菜掘取機の別実施例の左側面図Left side view of another embodiment of root crop excavator 根菜掘取機の別実施例の左側面図Left side view of another embodiment of root crop excavator

１５テンションアーム
１６テンションローラ
１７伝動ケース
１８伝動ベルト
２６掘取刃（掘取部材）
３２搬送コンベア（搬送装置）
３３支持プレート
３５ガイド取付フレーム
３６ガイドプレート
４３仕切板
４５仕切板シリンダ
４６切替スイッチ（切替装置）
５７排出装置
６１第１連結アーム
６３第２連結アーム
６７クラッチワイヤ
６８クラッチ機構 15 tension arm
16 tension roller
17 transmission case
18 transmission belt 26 digging blade (digging member)
32 Conveyor (Conveyor)
33 Support plate
35 guide mounting frame 36 guide plate 43 partition plate 45 partition plate cylinder 46 selector switch (switching device )
5 7 Discharge device
61 1st connecting arm
63 2nd connecting arm
67 clutch wire
68 clutch mechanism

Claims

A digging member (26) for digging root vegetables from the field is provided, and a conveying device (32) for conveying the root vegetables digged rearward to the rear portion of the digging member (26) is provided , and is driven by the conveying device (32). A transmission case (17) is provided in which a transmission belt (18) for transmitting force is installed, and a tension arm (15) including a tension roller (16) for pressing the transmission belt (18) is provided rotatably, and the conveyance A partition plate (43) is rotatably provided on the conveyance start end side of the apparatus (32), and the partition plate (43) is rotated so that the partition plate cylinder (45) can be switched between a fall prevention operation state and a storage state. A switching device (46) for switching expansion and contraction of the partition cylinder (45),
A first connection arm (61) that rotates in conjunction with the partition plate (43) is provided, and a second connection arm (63) that rotates in association with the tension arm (15) is provided, and the first connection arm is provided. A clutch wire (67) for connecting the arm (61) and the second connecting arm (63) is provided to drive the conveying device (32) in conjunction with the switching between the fall prevention operation state and the storage state of the partition plate (43). A clutch mechanism (68) for switching the transmission of force,
When the partition plate (43) is switched to the fall-preventing action state, the clutch mechanism (68) is operated to stop the transmission of the driving force to the transport device (32), and the partition plate (43) is put into the storage state. When switched, the clutch mechanism (68) is activated to transmit the driving force to the conveying device (32).
The conveying device root photo machine, characterized in that a discharge device for discharging a root vegetable in the field of the machine body outward (57) and rear portion receiving the root (32).

Left and right support plates (33, 33) are rotatably provided on the lower side in the transport direction of the transport device (32), and root vegetables being transported by the transport device (32) to the left and right support plates (33, 33). Left and right guide mounting frames (35, 35) for guiding the left and right direction center respectively, and left and right guide plates for collecting and discharging root vegetables within a predetermined range at the rear of the left and right guide mounting frames (35, 35). 36. The root crop excavator according to claim 1, wherein 36, 36) are provided .

Left and right support arms are rotatably provided at the transfer terminal portion of the transfer device (32), and the left and right support arms for restricting the movement of the root vegetables transferred by the discharge device (57) to the left and right support arms are controlled. The root vegetable excavator according to claim 1, further comprising a restriction arm.