JP2014045702A - Crop harvester - Google Patents

Crop harvester Download PDF

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Publication number
JP2014045702A
JP2014045702A JP2012190339A JP2012190339A JP2014045702A JP 2014045702 A JP2014045702 A JP 2014045702A JP 2012190339 A JP2012190339 A JP 2012190339A JP 2012190339 A JP2012190339 A JP 2012190339A JP 2014045702 A JP2014045702 A JP 2014045702A
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foliage
cutting
crop
pulling
cutting device
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Inventor
Masami Muranami
村並　　昌実
Shingo Takagi
高木　　真吾
Hideaki Kurose
英明 黒瀬
Takeshi Yumitatsu
武志 弓達
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Iseki and Co Ltd
Iseki Agricultural Machinery Mfg Co Ltd
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Iseki and Co Ltd
Iseki Agricultural Machinery Mfg Co Ltd
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Priority to JP2012190339A priority Critical patent/JP2014045702A/en
Publication of JP2014045702A publication Critical patent/JP2014045702A/en
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Abstract

PROBLEM TO BE SOLVED: To provide a crop harvester including foliage cutting devices for cutting foliage parts of crops immediately after being pulled out, the cutting heights of which are automatically appropriately adjusted according to recesses/protrusions of a field.SOLUTION: The crop harvester includes: a raising device 63 for raising foliage parts of a crop lodged to the front side of a machine body; a pull-out/conveying device 20 that clamps the foliage parts raised by the raising device 63 and pulls out the crop from the field; foliage cutting devices 54, 107, and 122 that cut the foliage parts of the crops pulled out downward a conveyance leading side of the pull-out/conveying device 20; and grounding members 50, 106, and 119 provided at lower parts of the foliage cutting devices 54, 107, and 122 and grounded on a field surface. The foliage cutting devices 54, 107, and 122 vertically and rotationally turn following the grounding of the grounding members 50, 106, and 119.

Description

本発明は、圃場に倒伏した作物の茎葉部を引き起こし、この茎葉部を挟持して圃場から引き抜いた後、茎葉部を茎葉切断装置で除去して収穫する農作物収穫機に関するものである。 The present invention relates to a crop harvesting machine that causes a foliage portion of a fallen crop in a field, holds the foliage portion and pulls out from the field, and then removes the foliage portion with a foliage cutting device to harvest.

従来の農作物収穫機には、マルチフィルムの敷設された圃場面に倒伏した茎葉部を引き起こして引抜搬送装置に挟持させる引起し装置を設け、この引起し装置で引き起こした茎葉部を引抜搬送装置で挟持して作物を引き抜き、作物が引き抜かれた直後に茎葉切断装置で茎葉部を切除する技術が存在する。（特許文献１）
特開２００２−１２５４２７号公報 A conventional crop harvesting machine is provided with a pulling device that causes a fallen foliage part to be sandwiched by a pulling and conveying device in a field scene where a multi-film is laid, and the foliage part caused by this pulling device is removed by a pulling and conveying device. There is a technique in which a crop is pulled out by sandwiching, and a foliage portion is cut out with a foliage cutting device immediately after the crop is pulled out. (Patent Document 1)
JP 2002-125427 A

しかしながら、特許文献１に記載された農作物収穫機では、茎葉切断装置の位置は固定されているので。圃場の起伏等により、作物の引抜収穫高さが変わると茎葉部の切断位置も変わってしまい、切断位置が上がって茎葉部が作物に残り、作業者は茎葉部の除去作業を行わねばならなくなり、労力が増大する問題がある。
逆に、切断位置が下がると、茎葉切断装置は茎葉部だけでなく作物の商品となる部分まで切断してしまうので、作物の商品価値が低下してしまう問題がある。
そして、作物を土中から引抜搬送装置によって引き上げたとき、土中から引き上げられる作物がマルチフィルムを押し上げて圃場面から浮かせてしまい、作物の収穫後のマルチフィルムの回収作業を困難にする問題がある。
また、この押し上げられたマルチフィルムを引抜搬送装置が挟持してしまうと、引抜搬送装置にマルチフィルムが詰まって停止してしまい、マルチフィルムを除去する作業が必要となり、作業能率が低下する問題がある。
そして、切断された茎葉部は引抜搬送装置によって搬送終端部まで搬送され、搬送終端部には茎葉部を機体側方に案内する排葉ガイドが設けられているが、この排葉ガイドは能動的に茎葉部を機体側方に案内するものではないので、引抜搬送装置から排出される姿勢や風の有無などによっては、茎葉部が圃場に引き上げられた作物の上方に落下することがある。
このため、作物を作物拾い上げ機（特開２０１１−２１７６１３号等）で圃場から回収する際、茎葉部も一緒に回収されてしまうので、作物の洗浄作業や選別作業等を行う際、茎葉部を取り除きながら作業する必要が生じ、作業能率が低下する問題がある。
そして、収穫した作物を圃場に放置し、天日や風によって乾燥を行う際、茎葉部が作物を覆っていると乾燥の効率が大幅に低下するので、作業者が手作業で作物の上に覆い被さる茎葉部を除去する必要があり、作業者の労力が増大する問題がある。
本発明は、この問題を解消しようとするものである。 However, in the crop harvesting machine described in Patent Document 1, the position of the foliage cutting device is fixed. The cutting position of the foliage changes when the crop harvest height changes due to ups and downs in the field, etc., the cutting position rises, the foliage remains in the crop, and the operator must remove the foliage. There is a problem that labor is increased.
On the contrary, when the cutting position is lowered, the foliage cutting device cuts not only the foliage part but also the part that becomes the product of the crop, so that there is a problem that the commercial value of the crop is lowered.
When the crop is lifted from the soil by the pulling and conveying device, the crop that is lifted from the soil pushes up the multi-film and floats from the field scene, making it difficult to collect the multi-film after harvesting the crop. is there.
In addition, if the pulling / conveying device sandwiches the pushed-up multifilm, the pulling / conveying device is clogged and stopped, and the work for removing the multifilm is required, which reduces the work efficiency. is there.
The cut foliage portion is conveyed to the conveyance end by the pulling and conveying device, and the conveyance end portion is provided with a leaf discharge guide for guiding the stem and leaf portion to the side of the machine body. In addition, since the foliage is not guided to the side of the machine body, the foliage may fall above the crop that has been pulled up to the field depending on the posture discharged from the pulling / conveying device and the presence or absence of wind.
For this reason, when the crop is collected from the field with a crop pick-up machine (Japanese Patent Application Laid-Open No. 2011-217613, etc.), the foliage is also collected together. There is a problem that it is necessary to work while removing, and work efficiency is lowered.
When the harvested crop is left in the field and dried by the sun or wind, if the foliage covers the crop, the efficiency of drying is greatly reduced. There is a problem that it is necessary to remove the foliage portion that covers the cover, increasing the labor of the operator.
The present invention seeks to solve this problem.

請求項１記載の発明は、機体の前側に倒伏した作物の茎葉部を引き起こす引起し装置（６３）を設け、該引起し装置（６３）が引き起こした茎葉部を挟持して圃場から作物を引き抜く引抜搬送装置（２０）を設け、該引抜搬送装置（２０）の搬送始端側の下方に引き抜かれた作物の茎葉部を切断する茎葉切断装置（５４，１０７，１２２）を設け、該茎葉切断装置（５４，１０７，１２２）の下部に圃場面に接地する接地部材（５０，１０６，１１９）を設け、該接地部材（５０，１０６，１１９）の接地に追従して前記茎葉切断装置（５４，１０７，１２２）が上下に回動する構成としたことを特徴とする農作物収穫機とした。
請求項２記載の発明は、前記引抜搬送装置（２０）の下方にリンク機構（４６）を上下回動自在に設け、該リンク機構（４６）に茎葉切断装置（５４）を設け、該茎葉切断装置（５４）に対して前記接地部材（５０）を回転自在且つ上下位置調節自在に設けたことを特徴とする請求項１記載の農作物収穫機とした。
請求項３記載の発明は、前記リンク機構（４６）を左右一対設け、該左右のリンク機構（４６，４６）に左右の茎葉切断刃（４９Ｌ，４９Ｒ）を各々回転自在に設け、該左右の茎葉切断刃（４９Ｌ，４９Ｒ）のうち機体左右一側の茎葉切断刃（４９Ｒ）を機体左右他側の茎葉切断刃（４９Ｌ）よりも機体前側に設け、左右の茎葉切断刃（４９Ｌ，４９Ｒ）の外周縁部の一部を重ね合わせて配置し、前記左右のリンク機構（４６，４６）の左右どちらか一方、あるいは左右両方の上部に左右の茎葉切断刃（４９Ｌ，４９Ｒ）を回転させる駆動アクチュエータ（４８）を設け、前記左右の茎葉切断刃（４９Ｌ，４９Ｒ）の回転軸の下部側に、前記接地部材（５０）を左右の茎葉切断刃（４９Ｌ，４９Ｒ）の回転とは独立して回転可能に各々設けたことを特徴とする請求項２記載の農作物収穫機とした。
請求項４記載の発明は、前記引抜搬送装置（２０）の下方に回動アーム（１００）を上下回動自在に設け、該回動アーム（１００）に切断部材（１０２）を備える茎葉切断装置（１０７）を設け、該茎葉切断装置（１０７）の下部に接地部材（１０６）を設け、茎葉部を前記切断部材（１０２）に案内する案内部材（１０８）を前記茎葉切断装置（１０７）の機体左右一側端部に設けたことを特徴とする請求項１に記載の農作物収穫機とした。
請求項５記載の発明は、前記回動アーム（１００）の先端部に切断部材（１０２）を支持する支持フレーム（１０１）を設け、該支持フレーム（１０１）の機体左右一側端部に切断部材（１０２）と案内部材（１０８）を作動させる駆動アクチュエータ（１０３）を設け、該支持フレーム（１０１）に前記接地部材（１０６）を上下位置調節自在に設け、
前記案内部材（１０８）は、機体後側が前側よりも上位となる後上がり傾斜姿勢で配置したことを特徴とする請求項４に記載の農作物収穫機とした。
請求項６記載の発明は、前記引抜搬送装置（２０）の下方に回動アーム（１００）を上下回動自在に設け、該回動アーム（１００）の前側に茎葉部を切断する茎葉切断装置（１２２）を設け、該茎葉切断装置（１２２）の下部に接地部材（１１９）を設け、前記茎葉切断装置（１２２）の機体左右両側と機体後側を覆う被覆部材（１２３）を設け、該被覆部材（１２３）の機体左右一側に作物を排出する排出口（１２３ａ）を形成したことを特徴とする請求項１に記載の農作物収穫機とした。
請求項７記載の発明は、前記回動アーム（１００）の前端下部に切断フレーム（１１０）を設け、該切断フレーム（１１０）に複数の切断刃（１１５）を備える回転切断装置（１１７）と該回転切断装置（１１７）を作動させる駆動アクチュエータ（１１１）を設け、該切断フレーム（１１０）の外周縁部に複数の固定刃（１１６）を設け、前記回転切断装置（１１７）の下方に接地部材（１１９）を上下位置調節自在に設け、前記駆動アクチュエータ（１１１）を作動させると、前記回転切断装置（１１７）が切断した茎葉部を前記排出口（１２３ａ）を形成した機体左右一側に搬送する方向に回転する構成としたことを特徴とする請求項６に記載の農作物収穫機とした。
請求項８記載の発明は、前記回転切断装置（１１７）は、前記駆動アクチュエータ（１１１）が作動すると回転する駆動回転体（１１２）を切断フレーム（１１０）の機体左右一側に設け、該切断フレーム（１１０）の機体左右他側に従動回転体（１１３）を回転自在に設け、該駆動回転体（１１２）と従動回転体（１１３）に亘って伝動無端帯（１１４）を巻回し、該伝動無端帯（１１４）に前記複数の切断刃（１１５）を設けて構成すると共に、前記駆動回転体（１１２）と従動回転体（１１３）は、外周縁部に茎葉切断突起を形成したことを特徴とする請求項７に記載の農作物収穫機とした。 According to the first aspect of the present invention, an elevating device (63) for causing a fallen crop leaf is provided on the front side of the aircraft, and the crop is pulled out from the field by holding the stem and leaf caused by the elevating device (63). A pulling and conveying device (20) is provided, and a foliage cutting device (54, 107, 122) for cutting the foliage portion of the crop pulled out below the conveying start end side of the pulling and conveying device (20) is provided. (54, 107, 122) is provided with a grounding member (50, 106, 119) for grounding on a farm scene, and the foliage cutting device (54, 106, 119) is followed by the grounding of the grounding member (50, 106, 119). 107, 122) is configured to rotate up and down, and a crop harvesting machine is provided.
According to the second aspect of the present invention, a link mechanism (46) is provided below the pulling and conveying apparatus (20) so as to be pivotable up and down, and a foliage cutting device (54) is provided at the link mechanism (46). The crop harvesting machine according to claim 1, wherein the grounding member (50) is rotatably and vertically adjustable with respect to the device (54).
According to a third aspect of the present invention, a pair of left and right link mechanisms (46) are provided, and left and right foliage cutting blades (49L, 49R) are rotatably provided on the left and right link mechanisms (46, 46). Among the foliage cutting blades (49L, 49R), the foliage cutting blades (49R) on one side of the left and right sides of the fuselage are provided on the front side of the foliage cutting blades (49L) on the other side of the left and right sides. And driving the left and right foliage cutting blades (49L, 49R) to rotate on either the left or right of the left and right link mechanisms (46, 46) or on both the left and right. An actuator (48) is provided, and the grounding member (50) is provided on the lower side of the rotation shaft of the left and right foliage cutting blades (49L, 49R) independently of the rotation of the left and right foliage cutting blades (49L, 49R). Provided to be rotatable It was agricultural harvesting machine according to claim 2, wherein the door.
According to a fourth aspect of the present invention, a foliage cutting apparatus is provided with a rotating arm (100) that is pivotable up and down below the pulling and conveying apparatus (20), and the rotating arm (100) includes a cutting member (102). (107), a grounding member (106) is provided at the lower part of the foliage cutting device (107), and a guide member (108) for guiding the foliage part to the cutting member (102) is provided on the foliage cutting device (107). The crop harvesting machine according to claim 1, wherein the crop harvesting machine is provided at one end of the left and right sides of the machine body.
According to a fifth aspect of the present invention, a support frame (101) for supporting the cutting member (102) is provided at the tip of the rotating arm (100), and the support frame (101) is cut at one end on the left and right sides of the machine body. A drive actuator (103) for operating the member (102) and the guide member (108) is provided, and the grounding member (106) is provided on the support frame (101) so that the vertical position can be adjusted,
5. The crop harvester according to claim 4, wherein the guide member is arranged in a rearwardly inclined posture in which the rear side of the machine body is higher than the front side.
The invention according to claim 6 is a foliage cutting device that is provided with a rotating arm (100) that is pivotable up and down below the pulling and conveying device (20), and that cuts a foliage portion on the front side of the rotating arm (100). (122), a grounding member (119) is provided at the lower part of the foliage cutting device (122), a covering member (123) is provided to cover the left and right sides of the foliage cutting device (122) and the rear side of the fuselage, The crop harvesting machine according to claim 1, wherein a discharge port (123a) for discharging the crop is formed on one side of the body of the covering member (123).
According to a seventh aspect of the present invention, there is provided a rotary cutting device (117) provided with a cutting frame (110) at a lower front end of the rotating arm (100), the cutting frame (110) having a plurality of cutting blades (115). A drive actuator (111) for operating the rotary cutting device (117) is provided, a plurality of fixed blades (116) are provided on the outer peripheral edge of the cutting frame (110), and grounded below the rotary cutting device (117). When the member (119) is provided so that the vertical position can be adjusted and the drive actuator (111) is operated, the foliage cut by the rotary cutting device (117) is placed on the left and right sides of the machine body where the discharge port (123a) is formed. It was set as the structure rotated in the conveyance direction, It was set as the crop harvesting machine of Claim 6.
According to an eighth aspect of the present invention, the rotary cutting device (117) includes a drive rotating body (112) that rotates when the drive actuator (111) is operated on one side of the cutting frame (110). A driven rotating body (113) is rotatably provided on the left and right sides of the frame (110), and a transmission endless belt (114) is wound around the driving rotating body (112) and the driven rotating body (113). The transmission endless belt (114) is provided with the plurality of cutting blades (115), and the driving rotating body (112) and the driven rotating body (113) are formed with a foliage cutting protrusion on the outer peripheral edge. The crop harvester according to claim 7, which is a feature.

請求項１記載の発明によれば、回動自在な茎葉切断装置（５４，１０７，１２２）の下部に圃場面に接地する接地部材（５０，１０６，１１９）を設けたことにより、接地部材（５０，１０６，１１９）が圃場の凹凸を通過すると茎葉切断装置（５４，１０７，１２２）を回動させて茎葉切断位置を変更することができるので、作物の茎葉部の切断位置が上がって茎葉部が作物に多く残ることが防止され、茎葉部を取り除く作業が不要となり、作業者の労力や作業に要する時間が軽減される。
また、作物の茎葉部の切断位置が下がって作物の商品となる部分が切断されることを防止できるので、作物の商品価値が向上する。
そして、圃場の凹凸に合わせて茎葉切断装置（５４，１０７，１１９）の上下位置を変更する作業が不要となるので、作業能率が向上すると共に、作業者の労力が軽減される。
さらに、接地部材（５０，１０６，１１９）で圃場面に敷設したマルチフィルムを押さえることができるので、引抜搬送装置（２０）が作物を引き上げた際にマルチフィルムが浮き上がり過ぎることが防止され、マルチフィルムの回収作業が容易に行える。
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、リンク機構（４６）に茎葉切断装置（５４）を設けたことにより、圃場の凹凸によりリンク機構（４６）が上下回動して茎葉切断装置（５４）の茎葉切断位置を上下動させても、茎葉切断装置（５４）の姿勢が変わることを防止できるので、茎葉部の切断精度が向上する。
また、接地部材（５０）を回転自在に設けたことにより、圃場の凹凸や石等に接地部材（５０）が接地した際に回転して逃げることができるので、接地部材（５０）の破損が防止されると共に、接触抵抗でマルチフィルムを破ることが防止されるので、マルチフィルムの回収作業が能率よく行える。
さらに、接地部材（５０）の上下位置を調節することができるので、作業条件に合わせて茎葉部の切断高さを決めることにより、茎葉部の切断精度が向上する。
請求項３記載の発明によれば、請求項２記載の発明の効果に加えて、リンク機構（４６，４６）を左右一対設け、この左右のリンク機構（４６，４６）に左右の茎葉切断刃（４９Ｌ，４９Ｒ）を各々設けたことにより、機体の左右方向で圃場の高さが違うときでも各々の切断高さを適切に保つことができるので、作業者が茎葉部を除去する作業が不要となり作業者の労力が軽減されると共に、作物の商品となる部分が傷付くことが防止され、作物の商品価値が向上する。
また、機体左右一側の茎葉切断刃（４９Ｒ）を機体左右他側の茎葉切断刃（４９Ｌ）よりも機体前側に位置すると共に、左右の茎葉切断刃（４９Ｌ，４９Ｒ）の外周縁部の一部が重なる配置としたことにより、機体の左右幅を抑えつつ左右の茎葉切断刃（４９Ｌ，４９Ｒ）を切断作業が可能な位置に配置することができるので、機体の左右幅がコンパクトになり、収納性が向上する。
さらに、圃場端での旋回走行の際に旋回半径を小さくすることができるので、機体の操作性が向上する。
そして、左右の接地部材（５０，５０）は、左右の茎葉切断刃（４９Ｌ，４９Ｒ）の回転とは独立して回転する構成としたことにより、左右の接地部材（５０，５０）がマルチフィルムを回転力で巻き上げることがなく、マルチフィルムの回収作業が能率よく行える。
また、左右の接地部材（５０，５０）が作物に接触した際、左右の接地部材（５０，５０）は作物との接触抵抗で回転することにより、作物をはじき飛ばしてしまうことを防止できるので、飛ばされた作物を回収する作業が不要となり、作業者の労力が軽減される。
請求項４記載の発明によれば、請求項１に記載の発明の効果に加えて、上下回動自在な回動アーム（１００）に茎葉切断装置（１０７）を設けたことにより、接地部材（１０６）が圃場の凹凸を通過すると茎葉切断装置（１０７）を回動させて茎葉切断位置を変更することができるので、作物の茎葉部の切断位置が上がって茎葉部が作物に多く残ることが防止され、茎葉部を取り除く作業が不要となり、作業者の労力や作業に要する時間が軽減される。
また、作物の茎葉部の切断位置が下がって作物の商品となる部分が切断されることを防止できるので、作物の商品価値が向上する。
そして、茎葉切断装置（１０７）の機体左右一側端部に案内部材（１０８）を設けたことにより、搬送中の作物の茎葉部を案内装置（１０８）で切断部材（１０２）側に案内することができるので、作物の茎葉部が切断部材（１０２）から離間した位置を通過し、茎葉部が切断されずに搬送されることが防止され、作物がマルチフィルムを持ち上げ、回収作業能率を低下させることが防止される。
さらに、引き上げられたマルチフィルムを引抜搬送装置（２０）が挟持して搬送することを防止できるので、引抜搬送装置（２０）に詰まったマルチフィルムを取り出す作業が不要となり、作業能率が向上する。
請求項５記載の発明によれば、請求項４に記載の発明の効果に加えて、切断部材（１０２）を作動させる駆動アクチュエータ（１０３）を支持フレーム（１０１）の機体左右一側端部に設けたことにより、駆動アクチュエータ（１０３）が次工程で作物の収穫を行う条とは反対側に位置するので、作物に駆動アクチュエータ（１０３）が接触して傷付けることが防止され、作物の商品価値が向上する。
また、接地部材（１０６）の上下位置を調節することができるので、作業条件に合わせて茎葉部の切断高さを決めることにより、茎葉部の切断精度が向上する。
そして、駆動アクチュエータ（１０３）から駆動力を受ける案内部材（１０８）を後上がり傾斜姿勢で設けたことにより、茎葉部の切断位置近くを案内部材（１０８）で持ち上げて切断部材（１０２）に案内することができるので、茎葉部の切断位置が安定し、切断精度が向上する。
請求項６記載の発明の効果は、請求項１に記載の発明の効果に加えて、上下回動自在な回動アーム（１００）に茎葉切断装置（１２２）を設けたことにより、接地部材（１１９）が圃場の凹凸を通過すると茎葉切断装置（１２２）を回動させて茎葉切断位置を変更することができるので、作物の茎葉部の切断位置が上がって茎葉部が作物に多く残ることが防止され、茎葉部を取り除く作業が不要となり、作業者の労力や作業に要する時間が軽減される。
そして、作物の茎葉部の切断位置が下がって作物の商品となる部分が切断されることを防止できるので、作物の商品価値が向上する。
また、茎葉切断装置（１２２）の機体左右両側と機体後側を覆う被覆部材（１２３）を設けたことにより、機体の移動中等に茎葉切断装置（１２２）が周囲と接触することを防止できるので、茎葉切断装置（１２２）の破損が防止されると共に、茎葉切断装置（１２２）との接触で傷付くものが生じることが防止される。
請求項７記載の発明の効果は、請求項６に記載の発明の効果に加えて、回転切断装置（１１７）に設ける複数の切断刃（１１５）と、切断フレーム（１１６）に設ける複数の固定刃（１１６）で茎葉部を挟み切ることにより、確実に茎葉部が切断される。
また、接地部材（１１９）の上下位置を調節することができるので、作業条件に合わせて茎葉部の切断高さを決めることにより、茎葉部の切断精度が向上する。
そして、駆動アクチュエータ（１１１）を作動させると、前記回転切断装置（１１７）が切断した茎葉部を機体左右他側から機体左右一側に搬送する方向に回転する構成としたことにより、茎葉部を機体左右一側の排出口（１２３ａ）に案内することができるので、茎葉部が回転切断装置（１１７）に滞留することが防止され、茎葉部の切断精度が向上する。
請求項８記載の発明の効果は、請求項７に記載の発明の効果に加えて、回転切断装置（１１７）を構成する駆動回転体（１１２）と従動回転体（１１３）の外周縁部に茎葉切断突起を形成したことにより、複数の切断刃（１１５）と複数の固定刃（１１６）で挟み切れなかった茎葉部があっても、回転する駆動回転体（１１２）または従動回転体（１１３）で茎葉部を切断することができるので、確実に茎葉部が切断され、マルチフィルムが作物と共に引き上げられて回収作業の能率が低下することが防止されると共に、マルチフィルムが引抜搬送装置（２０）に詰まることが防止される。 According to the first aspect of the present invention, the grounding member (50, 106, 119) for grounding to the farm scene is provided at the bottom of the rotatable foliage cutting device (54, 107, 122). 50, 106, 119) pass through the unevenness of the field, the foliage cutting device (54, 107, 122) can be rotated to change the foliage cutting position, so that the cutting position of the foliage part of the crop is raised and the foliage is cut. It is prevented that a lot of parts remain in the crop, the work of removing the foliage part becomes unnecessary, and the labor and time required for the work are reduced.
Moreover, since the cutting position of the foliage portion of the crop can be prevented from being cut and the portion that becomes the product of the crop can be prevented from being cut, the commercial value of the crop is improved.
And since the operation | work which changes the up-and-down position of a foliage cutting device (54,107,119) according to the unevenness | corrugation of a farm field becomes unnecessary, work efficiency improves and a worker's labor is reduced.
Furthermore, since the multi-film laid in the field scene can be pressed by the grounding member (50, 106, 119), it is prevented that the multi-film is lifted too much when the pulling and conveying device (20) pulls up the crop. The film can be collected easily.
According to the invention of claim 2, in addition to the effect of the invention of claim 1, the link mechanism (46) is provided with the foliage cutting device (54) in the link mechanism (46), so that the link mechanism (46) Even when the foliage cutting position of the foliage cutting device (54) is moved up and down and moved up and down, the posture of the foliage cutting device (54) can be prevented from changing, so that the cutting accuracy of the foliage portion is improved.
Further, since the grounding member (50) is provided so as to be rotatable, the grounding member (50) can rotate and escape when the grounding member (50) is grounded on the unevenness or stones of the field, so that the grounding member (50) is damaged. In addition to being prevented, the multi-film is prevented from being broken by contact resistance, so the multi-film recovery operation can be performed efficiently.
Furthermore, since the vertical position of the grounding member (50) can be adjusted, the cutting accuracy of the foliage is improved by determining the cutting height of the foliage according to the working conditions.
According to the invention described in claim 3, in addition to the effect of the invention described in claim 2, a pair of left and right link mechanisms (46, 46) are provided, and left and right foliage cutting blades are provided in the left and right link mechanisms (46, 46). By providing (49L, 49R), even when the height of the field is different in the left-right direction of the machine body, each cutting height can be maintained appropriately, so the operator does not need to remove the foliage. Thus, the labor of the worker is reduced, and the product part of the crop is prevented from being damaged, and the product value of the crop is improved.
Further, the foliage cutting blade (49R) on one side of the left and right sides of the machine is positioned on the front side of the machine from the foliage cutting blade (49L) on the other side of the left and right of the machine, and By arranging the parts to overlap, the left and right foliage cutting blades (49L, 49R) can be placed at a position where cutting work can be performed while suppressing the left and right width of the body, so the left and right width of the body becomes compact, Storability is improved.
Furthermore, since the turning radius can be reduced when turning at the field end, the operability of the machine body is improved.
The left and right grounding members (50, 50) are configured to rotate independently of the rotation of the left and right foliage cutting blades (49L, 49R). The multi-film can be collected efficiently without being wound up by rotational force.
In addition, when the left and right grounding members (50, 50) are in contact with the crop, the left and right grounding members (50, 50) can be prevented from repelling the crop by rotating with the contact resistance with the crop. There is no need to collect the skipped crops, and the labor of the worker is reduced.
According to the invention described in claim 4, in addition to the effect of the invention described in claim 1, by providing the foliage cutting device (107) on the pivot arm (100) that can be pivoted up and down, the grounding member ( 106) can pass through the irregularities of the field, the foliage cutting device (107) can be rotated to change the foliage cutting position, so that the cutting position of the foliage part of the crop is raised and a lot of foliage remains in the crop. This eliminates the need for removing the foliage and reduces the labor and time required for the operator.
Moreover, since the cutting position of the foliage portion of the crop can be prevented from being cut and the portion that becomes the product of the crop can be prevented from being cut, the commercial value of the crop is improved.
Then, by providing a guide member (108) at one end of the left and right sides of the machine body of the foliage cutting device (107), the foliage portion of the crop being conveyed is guided to the cutting member (102) side by the guide device (108). As a result, the foliage of the crop passes through a position away from the cutting member (102), and the foliage is prevented from being transported without being cut. The crop lifts the multi-film and reduces the recovery work efficiency. Is prevented.
Furthermore, since it is possible to prevent the pulled-out multi-film (20) from being held and conveyed by the pull-out conveying device (20), it is not necessary to take out the multi-film jammed in the pull-out conveying device (20), and the work efficiency is improved.
According to the invention described in claim 5, in addition to the effect of the invention described in claim 4, the drive actuator (103) for operating the cutting member (102) is provided at one end of the left and right sides of the body of the support frame (101). By providing, the drive actuator (103) is located on the opposite side to the line that harvests the crop in the next process, so that the drive actuator (103) is prevented from coming into contact with the crop and being damaged, and the commercial value of the crop Will improve.
Moreover, since the vertical position of the ground contact member (106) can be adjusted, the cutting accuracy of the foliage is improved by determining the cutting height of the foliage according to the working conditions.
Then, by providing the guide member (108) that receives the driving force from the drive actuator (103) in a back-up and inclined posture, the guide member (108) lifts the vicinity of the cutting position of the foliage and guides it to the cutting member (102). Therefore, the cutting position of the foliage is stabilized and the cutting accuracy is improved.
The effect of the invention described in claim 6 is that, in addition to the effect of the invention described in claim 1, the stem and leaf cutting device (122) is provided on the pivot arm (100) that can be pivoted up and down. When 119) passes through the irregularities of the field, the foliage cutting device (122) can be rotated to change the foliage cutting position, so that the cutting position of the foliage part of the crop rises and many foliage parts remain in the crop. This eliminates the need for removing the foliage and reduces the labor and time required for the operator.
And since the cutting position of the foliage part of a crop falls and it can prevent that the part used as the product of a crop is cut | disconnected, the commercial value of a crop improves.
Moreover, since the covering member (123) covering the left and right sides of the body and the rear side of the body of the foliage cutting device (122) is provided, the foliage cutting device (122) can be prevented from coming into contact with the surroundings while the body is moving. In addition to preventing damage to the foliage cutting device (122), it is possible to prevent damage from being caused by contact with the foliage cutting device (122).
The effect of the invention described in claim 7 is that, in addition to the effect of the invention described in claim 6, a plurality of cutting blades (115) provided in the rotary cutting device (117) and a plurality of fixings provided in the cutting frame (116). By sandwiching the foliage part with the blade (116), the foliage part is surely cut.
Moreover, since the vertical position of the grounding member (119) can be adjusted, the cutting accuracy of the foliage is improved by determining the cutting height of the foliage according to the working conditions.
Then, when the drive actuator (111) is operated, the foliage section is rotated in the direction of transporting the foliage section cut by the rotary cutting device (117) from the left and right sides of the body to the left and right sides of the body. Since it can guide to the discharge port (123a) on the left and right sides of the machine body, the foliage is prevented from staying in the rotary cutting device (117), and the cutting accuracy of the foliage is improved.
The effect of the invention described in claim 8 is that, in addition to the effect of the invention described in claim 7, the outer periphery of the drive rotating body (112) and the driven rotating body (113) constituting the rotary cutting device (117). Even if there is a foliage portion that cannot be sandwiched between the plurality of cutting blades (115) and the plurality of fixed blades (116) due to the formation of the foliage cutting protrusions, the rotating drive rotating body (112) or the driven rotating body (113) ), The foliage portion can be surely cut, the multifilm can be lifted together with the crops, and the efficiency of the recovery operation can be prevented from being lowered, and the multifilm can be drawn and conveyed (20). ) Is prevented.

玉葱収穫機の側面図Side view of onion harvester 玉葱収穫機の平面図Top view of onion harvester 玉葱収穫機の正面図Front view of onion harvester 茎葉切断装置とリンク機構を示す要部側面図Side view of main parts showing foliage cutting device and link mechanism （ａ）接地体を最上昇させた状態を示す要部側面図（ｂ）接地体を最下降させた状態を示す要部側面図(A) Main part side view showing a state where the grounding body is raised to the highest level (b) Main part side view showing a state where the grounding body is lowered to the lowest level （ａ）外周縁部を鋸刃形状とした左右の茎葉切断刃の配置を示す要部平面図 （ｂ）外周縁部を歯車形状とした左右の茎葉切断刃の配置を示す要部平面図(A) The principal part top view which shows arrangement | positioning of the left and right foliage cutting blades which made the outer peripheral part saw blade shape (b) The principal part top view which shows arrangement | positioning of the right and left foliage cutting blades which made the outer periphery part gear shape （ａ）従来の掘起しソイラを示す要部正面図 （ｂ）本発明の掘起しソイラを示す要部正面図 （ｃ）本発明の掘起しソイラを示す要部斜視図 （ｄ）本発明の掘起しソイラの別構成例を示す要部正面図(A) Main part front view showing a conventional excavator soli (b) Main part front view showing an excavator soli of the present invention (c) Main part perspective view showing an excavator soli of the present invention (d) The principal part front view which shows another structural example of the excavation soira of this invention 第２の茎葉切断装置を備える玉葱収穫機の側面図Side view of onion harvester with second forage cutting device 第２の茎葉切断装置を備える玉葱収穫機の平面図Top view of an onion harvester equipped with a second forage cutting device 第２の茎葉切断装置を備える玉葱収穫機の正面図Front view of an onion harvester equipped with a second forage cutting device 第２の茎葉切断装置の平面図Plan view of the second foliage cutting device 第２の茎葉切断装置の側面図Side view of the second foliage cutting device 別構成例の第２の茎葉切断装置の平面図The top view of the 2nd foliage cutting device of another composition example 第３の茎葉切断装置を備える玉葱収穫機の側面図Side view of onion harvester with third foliage cutting device 第３の茎葉切断装置を備える玉葱収穫機の平面図Top view of an onion harvester equipped with a third forage cutting device 第３の茎葉切断装置の平面図Plan view of the third foliage cutting device 第３の茎葉切断装置の側面図Side view of third foliage cutting device 第３の茎葉切断装置の切断刃及び固定切断刃の要部平面図The principal part top view of the cutting blade of a 3rd foliage cutting device and a fixed cutting blade

本発明の実施の形態について説明する。
図１から図７に示すのは、実施例の一つとして示す作物収穫機の一種である歩行型の玉葱収穫機である。本件発明では、機体の前進方向を基準として右側を左右一側、左側を左右他側と称するものとする。また、本件においては、基本的に４条植えの玉葱を２条分ずつ引抜収穫する作業形態として説明を行うが、特に言及が無い限り、引抜収穫作業の条数を限定するものではない。
図１、図２で示すとおり、メインフレーム１の後部にエンジン２とミッションケース３を内装する駆動ケース４を設け、該駆動ケース４の上部に燃料タンク５を設けるとともに、前部に分岐伝動ケース６を設ける。そして、該分岐伝動ケース６の前部に側面視「へ」の字形状の左右のハンドル支持フレーム７，７の基部を垂直姿勢で設け、該左右のハンドル支持フレーム７，７の屈曲部より上側を後上がり傾斜姿勢で配置し、該左右のハンドル支持フレーム７，７の後端部を平面視で「コ」の字形状のハンドル８で連結する。該ハンドル８は燃料タンク５よりも機体後方に突出させて配置し、該ハンドル８の左右両側にはサイドクラッチ機構（図示省略）を入切させるクラッチハンドル９，９を各々設ける。
さらに、図２で示すとおり、前記燃料タンク５の左右一側に機体の前後進及び走行速度を操作する走行操作レバー１０を設けるとともに、左右他側に収穫作業の入切を切り替える作業操作レバー１１を設ける。
そして、前記分岐伝動ケース６から前側上方に向かって左右の引抜駆動シャフト１２，１２を後下がり傾斜姿勢で設け、該左右の引抜駆動シャフト１２，１２の上端部に左右の引抜駆動プーリ１３，１３を各々装着するとともに、該左右一側の引抜駆動プーリ１３よりも下側に排葉駆動プーリ１４を装着する。また、前記左右の引抜駆動プーリ１３，１３の下部に前後方向の長辺を有する左右の引抜フレーム１５，１５を後上がり傾斜姿勢で各々設け、該左右の引抜フレーム１５，１５の前端部に左右の引抜従動プーリ１６，１６を各々回転自在に設ける。さらに、該左右の引抜従動プーリ１６，１６と左右の引抜駆動プーリ１３，１３の前後間に亘って複数の左右のテンションローラ１７，１７…を回転自在に設け、左右の引抜従動プーリ１６，１６と左右の引抜駆動プーリ１３，１３と左右のテンションローラ１７，１７…に玉葱の茎葉部を挟持して圃場から引き抜く左右の引抜搬送ベルト１８，１８を夫々巻回する。そして、前記左右の引抜フレーム１５，１５の上方に左右の引抜カバー１９，１９を左右の引抜フレーム１５，１５と平行姿勢、即ち傾斜角度を略同じとする後上がり傾斜姿勢で設けることにより、引抜搬送装置２０が構成される。
また、前記排葉駆動プーリ１４の下方に排葉フレーム２１の基部側を設け、該排葉フレーム２１の端部側を後側の左右一側に向けて突出させ、該排葉フレーム２１の端部側に排葉従動プーリ２２を回転自在に設ける。そして、該排葉駆動プーリ１４と排葉従動プーリ２２に排葉を引っ掛ける排葉ラグ２３ａ…を複数設けた排葉搬送ベルト２３を巻回するとともに、前記排葉フレーム２１の上方に排葉カバー２４を平行姿勢、即ち端部側を後側の左右一側に向けて突出させて配置することにより、排葉搬送装置２５が構成される。
上記構成としたことにより、後述する切断回転刃４９及び切断固定刃で切断した玉葱の茎葉部が引抜搬送装置２０の終端部まで移動すると、茎葉部は排葉ラグ２３ａ…に回収されて搬送され、機体左右一側に突出する排葉搬送装置２５の搬送終端部から機外、または後述する右側駆動輪８４Ｒ上に排出されるため、機体上に茎葉部が残ることが防止され、切断された茎葉部の除去作業が容易になり、メンテナンス性が向上する。
また、図１で示すとおり、前記分岐伝動ケース６の左右両側に左右の偏心カム２６，２６を設け、該左右の偏心カム２６，２６に左右の揺動ロッド２７，２７の後端部を各々設け、該左右の揺動ロッド２７，２７の前端部に上下方向に長辺を有する左右のソイラアーム２８，２８を各々前後回動自在に設ける。該ソイラアーム２８，２８の下部側には上下方向に亘って複数の取付穴２８ａ…を形成し、該取付穴２８ａ…の何れかに土中の玉葱に側方及び下方から接近して周辺の土を揺動して解す左右の掘起しソイラ２９，２９の穴部２９ａ…を合わせ、ボルト等の固定部材２９ｂ…を介して装着する構成とする。
なお、左右の掘起しソイラ２９，２９は下部側を引抜搬送域Ｒ側に屈曲させ、正面視でＬ字形状（逆Ｌ字形状）に形成している。
さらに、前記引抜搬送装置２０の前端部に設けた左右の引抜従動プーリ１６，１６の左右の回転軸１６ａ，１６ａの上端部を左右の引抜カバー１９，１９を貫通させて上方に突出させ、該左右の回転軸１６ａ，１６ａの上端部に左右の入力プーリ３１，３１を機体前側部分に内装した左右の伝動ケース３４，３４を後上がり傾斜姿勢で左右の引抜カバー１９，１９の上部に設ける。また、該左右の伝動ケース３４，３４の後側に左右の出力プーリ３２，３２を回転自在に各々内装するとともに、該左右の入力プーリ３１，３１と左右の出力プーリ３２，３２に左右の伝動ベルト３３，３３を各々巻回する。
そして、前記左右の出力プーリ３２，３２の上部側に左右の第１ユニバーサルジョイント３５，３５の下端部を装着し、該左右の第１ユニバーサルジョイント３５，３５の上端部に左右の横引起し駆動プーリ３６，３６を各々装着するとともに、該左右の横引起し駆動プーリ３６，３６を装着する左右の横引起しフレーム３７，３７を後上り傾斜姿勢で配置する。該左右の横引起しフレーム３７，３７の後上がり傾斜角度は、前記左右の引抜フレーム１５，１５の後上がり傾斜角度よりも大きく設定する。そして、該左右の横引起しフレーム３７，３７の下端部に左右の横引起し従動プーリ３８，３８を各々回転自在に設け、該左右の横引起し駆動プーリ３６，３６と左右の横引起し従動プーリ３８，３８の上下間に複数の横引起しテンションプーリ（図示省略）を設ける。さらに、左右の横引起し駆動プーリ３６，３６と左右の横引起し従動プーリ３８，３８と複数の横引起しテンションプーリにゴムやスポンジ等の弾性体で構成する複数の横引起しラグ３９ａ…を等間隔に設けた左右の横引起しベルト３９，３９を巻回し、該左右の横引起しベルト３９，３９の上方に前記左右の横引起しフレーム３７，３７と平行姿勢で左右の横引起しカバー４０，４０を各々設けることにより、横引起し装置４１が構成される。
なお、前記左右の横引起しベルト３９，３９に設けた横引起しラグ３９，３９…は、先端部同士が引抜搬送装置２０の引抜搬送域Ｒに近接するとともに互いに接触しない位置に配置する。
上記構成により、横引起しラグ３９ａ，３９ａ同士が接触することが防止されるので、接触の衝撃で引き起こし中の茎葉部が落下することが防止され、引抜搬送装置２０で確実に玉葱を圃場から引き抜くことができ、作業能率が向上する。
また、前記分岐伝動ケース６から支持フレーム４２を機体前側下方に向かって突出させて設け、該支持フレーム４２の前端部に左右方向に長い後リンクフレーム４３を設ける。そして、前記左右の引抜フレーム１５，１５の前端部の下方に左右の前側リンクフレーム４４，４４を上下方向に移動可能に設け、該左右の前リンクフレーム４４，４４と後リンクフレーム４３とに亘って上下一対のリンクアーム４５ｕ，４５ｄ、４５ｕ，４５ｄを各々上下方向に回動自在に装着する。前記支持フレーム４２は、引抜搬送装置２０を基準として水平姿勢で配置する。
さらに、前記左右の引抜フレーム１５，１５の前端部近傍には、左右の中空の支持パイプ１５ａ，１５ａを開口部が機体下側を向くように設け、該左右の中空の支持パイプ１５ａ，１５ａと左右の前リンクフレーム４４，４４の上部側にそれぞれ孔部４４ａ，４４ｂを形成し、左右の中空の支持パイプ１５ａ，１５ａと左右の前リンクフレーム４４，４４の孔部同士を合わせて固定ピン４４ｃ等を通し、左右の前リンクフレーム４４，４４の上下動を規制する構成とする。前記孔部４４ａ，４４ｂを上下方向に複数形成し、左右の前リンクフレーム４４，４４が任意の高さで固定される構成としてもよい。
これにより、切断リンク機構４６が構成される。
そして、前記左右の前リンクアーム４４，４４の前部に、左右の切断支持アーム４７，４７を各々設け、該左右の切断支持アーム４７，４７の上部側に左右の切断駆動モータ４８，４８を各々設けると共に、該左右の切断駆動モータ４８，４８の各回転軸の下端部に、円盤状の左右の茎葉切断刃４９Ｌ，４９Ｒを各々回転自在に装着する。左右の切断駆動モータ４８，４８の回転出力方向は、左右の茎葉切断刃４９Ｌ，４９Ｒが互いに対向する方向に回転するように設定する。該左右の切断駆動モータ４８，４８は油圧モータとすると、バッテリ等の増設の必要が無くなる。一方、電動モータを用いるときは、駆動ケース４の下方や燃料タンク５の上方等、他の部材がない位置にバッテリ（図示省略）を設け、このバッテリから電力供給を受ける構成とする。
なお、前記左右の前リンクアーム４４，４４に設ける左右の切断支持アーム４７，４７は、互いに長手側が上下方向となる姿勢とし、前記左右の上下リンクアーム４５ｕ，４５ｄ、４５ｕ，４５ｄが上下回動しても互いに同じ姿勢で上下移動する構成とすると、左右の茎葉切断刃４９Ｌ，４９Ｒの切断角度が変化しにくく、茎葉部の切断位置が安定し、玉葱の可食部を傷付けることが防止されると共に、茎葉部が玉葱の可食部に残りにくくなる。
該左右の茎葉切断刃４９Ｌ，４９Ｒの外周縁部には、等間隔に凹凸を形成し、歯車形状としてもよい。また、円盤状の左右の茎葉切断刃４９Ｌ，４９Ｒと同軸で且つ左右の茎葉切断刃４９Ｌ，４９Ｒの上面に、外周縁部に等間隔に凹凸を形成した鋸刃状の左右の掻込ガイド板４９ａ，４９ａを設ける構成としてもよい。左右の茎葉切断刃４９Ｌ，４９Ｒを歯車形状、あるいは鋸刃形状とすることにより、左右の茎葉切断刃４９Ｌ，４９Ｒは、外周縁部の一部が触れ合っていれば一方の回転力を受けて他方が回転する構成となるので、左右の切断駆動モータ４８，４８のどちらか一方を除外することができ、部品点数の削減を図ることができる。
なお、図１、図２、図４及び図６で示す通り、左右の茎葉切断刃４９Ｌ，４９Ｒは、機体左右一側（右側）に位置する茎葉切断刃４９Ｒが機体左右他側（左側）に位置する茎葉切断刃４９Ｌよりも前側に位置し、且つ左右の茎葉切断刃４９Ｌ，４９Ｒの外周縁部の一部が重なり合う構成とする。この前後位置の違いは、上下のリンクアーム４５ｕ，４５ｄの長さを左右で変更するか、機体左右他側の前リンクフレーム４４及び後リンクフレーム４３に取り付ける位置を異ならせて生じさせる。
本件の構成においては、この左右の茎葉切断刃４９Ｌ，４９Ｒは１条につき一組配置され、二条分の玉葱を一工程で収穫するときは、左右の茎葉切断刃４９Ｌ，４９Ｒが二組配置されることになる。このとき、図４、図６で示す通り、左右のうち機体左右一側に位置する茎葉切断刃４９Ｒ、４９Ｒが、機体左右他側に位置する茎葉切断刃４９Ｌ、４９Ｌよりも前側に位置する、平面視千鳥状の配置とする。
さらに、前記左右の切断駆動モータ４８，４８の回転軸の下端部に、円弧面が機体下側を向いた半球状の接地体５０，５０を、回転軸の回転から独立して回転可能に取り付ける。該左右の接地体５０，５０はゴム等の弾性体で構成し、回転軸にはベアリング（図示省略）等を介して独立回転可能、且つ上下方向に位置調節自在に装着する構成とする。
さらに、前記後リンクフレーム４３の上部に、側面視Ｌ字形状の左右の延設メタル５１，５１を設け、この延設メタル５１，５１と左右の上リンクアーム４５ｕ，４５ｕの間に、左右の上リンクアーム４５ｕ，４５ｕを下方に向けて押し下げる押圧スプリング５２，５２を設ける。そして、前記左右の延設メタル５１，５１を貫通させて左右の押しボルト５３，５３を設け、該押しボルト５３，５３の差込量に合わせて左右の押圧スプリング５２，５２の伸縮量が増減する構成とすることにより、圃場面の凹凸に追従して切断高さが自動変更される、フローティング可能な茎葉切断装置５４が構成される。
上記構成により、圃場面またはマルチフィルムの表面に接触する左右の接地体５０，５０が圃場面の凹凸に合わせて上下動すると、切断リンク機構４６によって左右の茎葉切断刃４９Ｌ，４９Ｒの上下高さが自動的に変更されるので、圃場に凹凸が多くても玉葱の茎葉部の切断位置が安定する。
これにより、切断位置が高くなり過ぎて茎葉部が玉葱の可食部に残り過ぎ、茎葉部を除去する作業工程に要する時間と労力が大幅に短縮されるので、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、切断位置が低くなり過ぎて、左右の茎葉切断刃４９Ｌ，４９Ｒが可食部を切断することを防止できるので、玉葱の商品価値や品質の低下が防止される。
そして、右の茎葉切断刃４９Ｒを左の茎葉切断刃４９Ｌよりも前側に位置させて配置し、その隣接条も右の茎葉切断刃４９Ｒを左の茎葉切断刃４９Ｌよりも前側に位置させて配置したことにより、複数条の左右の茎葉切断刃４９Ｌ，４９Ｒを左右にずらさずに配置するよりも機体の左右幅を抑えることができるので、コンパクトな機体構成のまま多条分の玉葱の収穫を行なうことができ、作業能率が向上する。
加えて、機体の左右幅が抑えられるので、トラック等の輸送手段の荷台への積み込みや倉庫等への収納作業が能率的に行えると共に、収納用の広いスペースの確保が不要となる。さらに、圃場端での旋回時に旋回半径が抑えられるので、走行性が向上すると共に、旋回時に機体内側が未収穫の玉葱や圃場面に放出された玉葱に接触して傷付けることが防止される。
そして、茎葉切断装置５４の前端部である左右の茎葉切断部４９Ｌ，４９Ｒから後端部である支持フレーム４２までを、引抜搬送装置２０の前後長の下方に収めたことにより、機体の前後長さを抑えることができるので、積み込み作業や収納作業、旋回走行がいっそう容易になると共に、機体の収容スペースの確保も容易になる。
また、左右の茎葉切断刃４９Ｌ，４９Ｒの駆動力を左右の切断駆動モータ４８，４８としたことにより、フローティングにより上下移動する左右の茎葉切断刃４９Ｌ，４９Ｒに安定的に駆動力を供給することができるので、茎葉部の切断中に左右の茎葉切断刃４９Ｌ，４９Ｒの回転が停止したり回転数が著しく減少したりして茎葉部が切り残されることが防止され、後工程で茎葉部を除去する作業が不要となる。
そして、左右の茎葉切断刃４９Ｌ，４９Ｒの同軸で且つ上面に歯車形状や鋸刃形状の掻込ガイド板４９ａ，４９ａを設けることにより、玉葱の茎葉部が掻込ガイド板４９ａ，４９ａの凹凸によって左右の茎葉切断刃４９Ｌ，４９Ｒが重なり合う位置に搬送されるので、茎葉部が切断位置から逃げることが防止され、確実に茎葉部が除去される。
さらに、弾性体で構成する左右の接地体５０，５０を半球状に形成し、それらの円弧面を機体下側に向けて圃場面に接地させることにより、マルチフィルムを敷設している圃場で茎葉切断装置５４をフローティングさせながら作業しても、マルチフィルムを破ることなく左右の茎葉切断刃４９Ｌ，４９Ｒの切断作業高さを圃場面の凹凸に合った高さとすることができるので、茎葉部の切断位置が安定して玉葱の商品価値が向上すると共に、マルチフィルムを破ってしまうことが防止され、収穫作業後のマルチフィルムの回収作業が容易になり、作業能率が向上する。
また、左右の接地体５０，５０を、切断駆動モータ４８，４８の回転軸の回転とは独立して回転可能に装着したことにより、左右の接地体５０，５０が玉葱やマルチフィルムに接触し、玉葱をはじき飛ばしたりマルチフィルムを巻き上げて破ったりすることを防止できるので、玉葱やマルチフィルムの回収作業に要する時間や労力の増加が防止される。
そして、左右の接地体５０，５０の上下高さを変更可能としたことにより、玉葱を栽培する畝の高さや土質、茎葉切断ミスの発生頻度などに合わせた位置に左右の接地体５０，５０の作業高さを調節することができるので、作業箇所の条件に適した設定や、作業ミスの発生頻度を低下させる設定が容易になり、作業能率が向上すると共に、作物の商品価値が向上する。
さらに、左右の中空の支持パイプ１５ａ，１５ａの上部に形成した孔部４４ａと、左右の前リンクフレーム４４，４４の上部側に形成した４４ｂを合わせ、固定ピン４４ｂを通すと左右の前リンクフレーム４４，４４の上下動は規制される構成としたことにより、玉葱の茎葉部の切断高さを一定に保つことができるので、凹凸が多くフローティングさせるとかえって茎葉部の切断高さが乱れやすい圃場での作業や、非常に凹凸が少なくフローティングさせる必要の無い圃場での作業に適切に対応することができる。
また、左右の延設メタル５１，５１と左右の上リンクアーム４５ｕ，４５ｕの間に、左右の上リンクアーム４５ｕ，４５ｕを下方に押し下げる左右の押圧スプリング５２，５２を設けたことにより、圃場の凹部等により左右の接地体５０，５０が浮いた状態になっても、左右の押圧スプリング５２，５２の付勢力によって左右の上リンクアーム４５ｕ，４５ｕが押し下げ、切断リンク機構４６を下降させて左右の接地体５０，５０を圃場面に接地させることができるので、左右の茎葉切断刃４９Ｌ，４９Ｒの切断作業高さが高い位置に維持されてしまうことが防止され、茎葉部の切断精度が向上する。
そして、左右の押しボルト５３，５３の操作により、左右の押圧スプリング５２，５２の伸縮量を自在に調節することができるので、大きな凹凸が多く茎葉部の切断高さが頻繁に変わり過ぎるときは左右の押しボルト５３，５３を差し込んで左右の押圧スプリング５２，５２の伸縮量を減少させることにより、茎葉部の切断精度がかえって低下することが防止される。
一方、小さな凹凸であっても茎葉切断装置５４のフローティングを確実にさせたいときは、左右の押しボルト５３，５３を緩めて左右の押圧スプリング５２，５２の伸縮量を増大させることにより、適切な切断作業高さを常時確保することができるので、茎葉部の切断精度が向上する。
図１から図３で示す通り、前記分岐伝動ケース６の左右他側に第２分岐伝動ケース６ａを設け、該第２分岐伝動ケース６ａの前部から機体前方に向かって引起し出力軸５７を設け、該引起し出力軸５７の前端部に駆動力を左右他側から左右一側に向かう方向に変更するベベルケース５８ａを装着する。該ベベルケース５８ａの内部には、一対のベベルギア（図示省略）が内装されており、この一対のベベルギアを介して引起し出力軸５７の駆動力を縦引起し伝動軸５８に伝達する。そして、該縦引起し伝動軸５８の左右一側端部と左右他側端部と左右方向の略中央部に縦引起し駆動プーリ５９，５９，５９を各々装着し、該縦引起し駆動プーリ５９，５９，５９の左右両側を覆う縦引起しカバー６０，６０，６０を後上がり傾斜姿勢で且つ上下回動自在に装着する。また、該縦引起しカバー６０，６０，６０の下端部に縦引起し従動プーリ６１，６１，６１を各々設け、該縦引起し駆動プーリ５９，５９，５９と縦引起し従動プーリ６１，６１，６１に圃場に倒伏している玉葱の茎葉部を引き起こす縦引起しラグ６２ａ…を複数設けた縦引起しベルト６２，６２，６２を巻回して、縦引起し装置６３を構成する。
なお、前記縦引起し装置６３の後上がり傾斜角度は、前記横引起し装置４１の後上がり傾斜角度と略同じ傾斜角度とする。これにより、縦引起し装置６３が引き起こした茎葉部が縦引起しラグ６２ａ…から離れるタイミングで横引き起こし装置４１の横引起しラグ３９ａ…に引き継がれるので、茎葉部を確実に引き起こして引抜搬送装置２０の搬送始端部に案内でき、玉葱の収穫作業能率の向上が図られる。
図１、図２で示すとおり、前記縦引起し伝動軸５８の左右一側端部に第２ユニバーサルジョイント６４の基部側を設け、該第２ユニバーサルジョイント６４の端部側を後方に向けて屈曲させて、畝引起し駆動プーリ６５を装着する。そして、該畝引起し駆動プーリ６５の左右両側を覆う上下方向に長辺を有する畝引起しカバー６６を後上がり傾斜姿勢で且つ前後回動自在に設け、該畝引起しカバー６６の下端部に畝引起し従動プーリ６７を回転自在に装着する。また、該畝引起し駆動プーリ６５と畝引起し従動プーリ６７の前後間に複数のテンションプーリ（図示省略）を設け、畝引起し駆動プーリ６５と畝引起し従動プーリ６７とテンションプーリに畝引起しベルト６８を巻回する。さらに、該畝引起しベルト６８にはゴムやスポンジ等の弾性体で構成する複数の畝溝引起しラグ６８ａ…を所定間隔ごとに設けることにより、機体左右一側の畝溝に垂れ下がっている玉葱の茎葉部を引き起こす畝溝引起し装置６９が構成される。
なお、該畝溝引起し装置６９は、縦引起し伝動軸５８から第２ユニバーサルジョイント６４を取り外すと、簡単に外れる構成とすると、畝溝に茎葉部が垂れ下がっていない圃場で作業する際、余分な駆動力が不要になり、作業能率が向上すると共に、燃費の低下が防止される。
さらに、前記縦引起し伝動軸５８の左右一側端部で且つ第２ユニバーサルジョイント６４の後方にゲージ輪昇降ケース７０を設け、該ゲージ輪昇降ケース７０の下部に中空の上部アーム７１を設け、該上部アーム７１の中空部にゲージ輪７３を回転自在に装着する下部アーム７２を上下動自在に設ける。また、該上部アーム７１と下部アーム７２にパンタグラフ機構７４の上下端部を各々設けるとともに、該パンタグラフ機構７４の支点軸に設けた支持ローラ７４ａ上に前記畝引起しカバー６６の左右一側に設ける受プレート６６ａを載置する。
そして、前記駆動ケース４に固定プレート７５を設ける、該固定プレート７５と前記ゲージ輪昇降ケース７０の後部の間に前後長の調節が可能なターンバックル７６を設け、該ターンバックル７６を伸張または収縮させて前記下部アーム７２を上下動させるゲージ輪調節ハンドル７７を設ける。
なお、前記畝溝引起し装置６９は、正面視で上端部側から下端部側に向かうほど機体左右一側に傾斜する姿勢で配置する。この構成により、畝に沿って垂れ下がっている茎葉部に畝引起しラグ６８ａ…が接触しやすい配置となるので、畝溝に垂れ下がっている茎葉部を確実に引き起こし、ゲージ輪７３に茎葉部が踏み付けられて引き起こし作業や引抜収穫作業に滞りが生じることが防止される。
また、上端部側に向かうほど畝引起しラグ６８ａ…が機体左右一側の縦引起しベルト６２に接近する構成となるので、畝溝から引き起こした茎葉部が縦引起し装置６３に引き継がれやすくなり、玉葱の引抜収穫作業能率が向上するとともに、圃場に残された玉葱を作業者が拾い集める作業が省略され、作業者の労力が軽減される。
そして、前記ゲージ輪７３は上下位置にかかわらず畝溝引起し装置６９よりも後側に位置する構成とする。一例として、畝溝引起し装置６９の後側、即ち畝溝の茎葉部の引起し作用域でない領域が、ゲージ輪７３上に乗った状態としてもよい。また、前記ターンバックル７６は前後端部が屈曲自在なユニバーサルジョイントを用いると、角度の変化に対応しやすく、ゲージ輪７３の上下位置調節の幅が広くなる。
上記構成としたことにより、畝溝に垂れ下がっている収穫畝上の玉葱の茎葉部をゲージ輪７３が踏み付ける前に引き起こすことにより、縦引起し装置６３や横引起し装置４１が確実に玉葱の茎葉部を引き起こすことができるので、引き起こされた茎葉部を引抜搬送装置２０で挟持して土中から引き抜くことができ、作業者が手作業で残された玉葱を引き抜く作業が不要となり、作業者の労力が軽減される。
また、収穫畝上の玉葱の茎葉部と隣接畝上の玉葱の茎葉部が畝溝に垂れ下がって絡み合っていても、茎葉部同士を持ち上げて絡み合いを解くことができるので、隣接条の玉葱を半端に引き上げることが防止され、引抜搬送装置２０で確実に玉葱を引き抜くことが可能になる。
そして、ゲージ輪調節ハンドル７７を操作してゲージ輪７３を設けた下部アーム７２を上昇または下降させることにより、横引起し装置４１や引抜搬送装置２０の作用位置を玉葱の生育状態や畝の高さに合わせて変更することができるので、茎葉部の引き起こしや引抜搬送が確実に行われ、作業能率が向上する。
さらに、上部アーム７１と下部アーム７２を連結するパンタグラフ７４の回動部を前後方向に摺動自在に設けたことにより、ゲージ輪７３の上下位置の変更に連動して畝溝引起し装置６９の作用位置が自動的に上下動されるので、畝溝引起し装置６９の調節作業が不要となり、作業能率が向上する。
図１、図２で示すとおり、前記駆動ケース４の左右一側に右側出力軸７８Ｒを設け、該右側出力軸７８に走行駆動スプロケット７９を装着し、該走行駆動スプロケット７９を右側走行伝動ケース８０Ｒの上端側に内装する。そして、該右側走行伝動ケース８０Ｒを後上がり傾斜姿勢とし、機体前側に位置する右側走行伝動ケース８０Ｒの下端側に走行従動スプロケット８１を回転自在に内装し、該走行駆動スプロケット７９と走行従動スプロケット８１に走行伝動チェーン８２を巻回する。
なお、走行伝動チェーン８２の巻回域内にテンションスプロケットを設けたり、負荷がかかると走行伝動チェーン８２から退避して駆動を停止させて破損を防止するクラッチ機構を設けてもよい。
また、前記走行従動スプロケット８１に車軸８３を装着し、該車軸８３に右側駆動輪８４Ｒを設ける。さらに、前記右側走行伝動ケース８０Ｒの後側上端部に左右の支持プレート８５、８５を設け、該左右の支持プレート８５、８５と前記上部フレーム７１の後部との間に調節ロッド８６を回転自在に設け、該調節ロッド８６を回転させて右側走行伝動ケース８０Ｒの後上がり傾斜角度を変更するスイング調節ハンドル８７を装着する。該調節ロッド８６の前端部には、上部フレーム７１を前後回動自在に取り付ける。
上記構成によれば、スイング調節ハンドル８７を操作して右側走行伝動ケース８０Ｒの後上がり傾斜角度を変更すると、右側駆動輪８４Ｒの上下位置が変更されるため、傾斜地や畝が崩れた圃場で作業をするときは右側駆動輪８４Ｒの上下位置を変更して機体を圃場面に対して略水平姿勢とすることができるので、玉葱の茎葉部の引き起こしや玉葱の引き抜きが確実に行われるため、抜き残した玉葱を作業者が手作業で引き抜く作業が不要となり、作業者の労力が軽減される。
また、調節ロッド８６の前端部に上部フレーム７１を上下回動自在に装着したことにより、スイング調節ハンドル８７を操作して右側走行伝動ケース８０Ｒを上下回動させると上部フレーム７１が連動して前後回動するので、右側駆動輪８４Ｒの上下位置に連動してゲージ輪７３の接地高さを変更することができ、調節作業を容易に行えるとともに、畝溝茎葉引起し装置６９や縦引起し装置６３の茎葉部の引起し高さが自動的に適切な位置に調節されるので、引抜搬送作業が能率よく行われる。
一方、図２で示すとおり、機体左右他側の第２分岐伝動ケース６ａの左右他側端部に左側出力軸７８Ｌを左右方向にスライド自在に設け、該第２分岐伝動ケース６ａの後部に取付プレート８８を設け、該取付プレート８８と駆動ケース４とでトレッド調節シリンダ８９の固定側８９ａを支持する。そして、前記左側出力軸７８Ｌに走行駆動スプロケット７９を装着し、該走行駆動スプロケット７９を左側走行伝動ケース８０Ｌの上部に内装する。さらに、該左側走行伝動ケース８０Ｌを後上がり傾斜姿勢とし、機体前側に位置する左側走行伝動ケース８０Ｌの下端側に走行従動スプロケット８１を回転自在に内装し、該走行駆動スプロケット７９と走行従動スプロケット８１に走行伝動チェーン８２を巻回する。また、前記走行従動スプロケット８１に車軸８３を装着し、該車軸８３に左側駆動輪８４Ｌを設ける。
そして、前記トレッド調節シリンダ８９の移動側８９ｂを該左側走行伝動ケース８０Ｌの上端部に連結し、トレッド調節シリンダ８９を伸張させると移動部８９ｂと左側伝動軸７８Ｌが左右他側方向に移動して左側走行伝動ケース８０Ｌがメインフレーム１から離間し、右側駆動輪８４Ｒと左側駆動輪８４Ｌの左右間隔が広くなる構成とする。一方、前記トレッド調節シリンダ８９を収縮させたときは、移動部８９ｂと左側伝動軸７８Ｌが左右一側方向に移動して左側走行伝動ケース８０Ｌがメインフレーム１に接近し、右側駆動輪８４Ｒと左側駆動輪８４Ｌの左右間隔が狭くなる構成とする。
上記構成により、畝の左右幅に合わせて左側駆動輪８４Ｌの左右位置を変更することができるので、畝の左右幅の異なる圃場で作業をするときに左側駆動輪８４Ｌを畝上を移動させる必要が無く、安定した姿勢で玉葱の引抜収穫作業が行え、作業能率が向上する。
また、機体を軽トラック等の荷台に積み込むときや、倉庫等に収容する際には左右の駆動輪８４Ｌ，８４Ｒの左右間隔を限界まで狭くすることにより、機体の左右幅を短くすることができるので、機体の積み込み作業や収納作業が能率よく行える。
なお、前記右側駆動輪８４Ｒの内周部には、隣接条から垂れ下がっている玉葱の茎葉部がスポークや車軸８３に絡み付くことを防止するホイールカバー８４ａを着脱自在に設けると、茎葉部が絡み付いて隣接条の玉葱を引き抜いてしまい、引抜搬送装置２０で引抜収穫できなくなることが防止され、作業能率が向上する。
図７（ａ）は、マルチフィルムを敷設したままで玉葱の引抜収穫を行う際に用いられる従前のＬ字型ソイラ２００であり、畝端部、即ち機体左右一側に取り付け、刃部２００ａをマルチフィルムよりも下方から畝内に進入させ、玉葱の左右一側及び下方から振動を与えて土を解すものである。しかしながら、このＬ字型ソイラを用いるときは、一旦左右の掘起しソイラ２９，２９を取り外してから装着する必要があり、換装作業に多くの時間と作業者の労力を要している。
上記の問題を解消すべく、図１、図３、図４及び図７（ｂ）〜（ｄ）で示すとおり、マルチフィルムを敷設した圃場で引抜収穫作業を行うときは、まず機体左右他側の掘起しソイラ２９を取り外す。そして、機体左右一側の掘起しソイラ２９の刃部に、中空の延長ソイラ刃９１を装着し、ボルトとナット等の固定部材で固定する。この延長ソイラ刃９１の左右長さは、従前のＬ字型ソイラ２００の刃部２００ａの左右長さと同程度の長さとする。
上記構成としたことにより、左右一側の掘起しソイラ２９を取り外すことなくマルチフィルム敷設時の引抜収穫作業に対応することができるので、換装作業に要する時間や労力が短縮される。
上記構成により、マルチフィルムを避けて玉葱の周囲の土を解すことができる。しかしながら、マルチフィルムの左右端部が畝を形成する土に強固に抑えられていると、玉葱が十分に持ち上げられず、引き抜きや茎葉部の切断の妨げになることがある。また、玉葱を回収する際にはマルチフィルムを除去する必要があるが、土に押さえられていると除去作業に要する労力が増大する。
上記の問題を解決すべく、図７（ｂ）〜（ｄ）で示すとおり、取り外した左右他側の掘起しソイラ２９を、刃部２９ｄを左右一側方向に向けて左右一側の掘起しソイラ２９に装着する構成とするとよい。
上記構成により、左右他側の掘起しソイラ２９の刃部２９ｄが畝の端部で且つマルチフィルムの端部近傍の土を解すことにより、マルチフィルムを押さえている土を崩すことができるので、マルチフィルムの除去が容易に行えるため、作業能率が向上するとともに、作業者の労力が軽減される。
また、図３、図４や図７（ｂ）〜（ｄ）で示すとおり、左右他側の掘起しソイラ２９の刃部２９ｄに、延長ソイラ刃９１よりも下方で土中に進入する刃部を前端部に備え、該刃部の後側に板状の連結部を備え、該連結部から後端部に亘って円弧状に屈曲した案内部を備えるマルチ剥離ソイラ９２を装着する構成としてもよい。
しかしながら、玉葱を４条に亘って植えており、先に収穫する２条においては、マルチフィルムを持ち上げると未収穫側の玉葱が一緒に持ち上がり、引抜搬送装置２０で挟持することができなくなるおそれがある。
上記構成により、マルチフィルムを後側上方に案内することができるので、引抜搬送装置２０が玉葱を土中から引き抜く際にマルチフィルムが抵抗となることが防止され、玉葱が土中に残ることが無く、作業者が残った玉葱を回収する必要が無く、作業者の労力が軽減される。
また、マルチフィルムとともに未収穫側の玉葱が持ち上がることを防止できるので、引抜搬送装置２０で確実に玉葱を引抜収穫することができ、作業能率が向上する。
なお、左右の掘起しソイラ２９，２９の刃部２９ｄを前後両方に形成すると、左右の区別がなくなるため、メンテナンス等の際に両方の掘起しソイラ２９，２９を外した際に組み付け間違いとなることがなく、作業能率が向上する。
また、組み付け方向を決めておき、前方として用いていた側の刃部２９ｄが擦り減ったときは、左右の掘起しソイラ２９，２９を各々反転させて逆側に取り付ければ即座に土中進入作用を得ることができるので、左右の掘起しソイラ２９，２９の耐久性が向上する。
なお、本件の玉葱収穫機に設ける茎葉切断装置５４は、以下の構成とする第２の茎葉切断装置１０７、第３の茎葉切断装置１２２と相互に換装可能なものとする。
図８から図１２で示す通り、前記支持フレーム４２の機体左右一側に、機体前側に向かって突出する回動アーム１００を設け、該回動アーム１００の機体左右他側に、機体左右方向に長い平面視コの字型の切断支持フレーム１０１を設ける。そして、該切断支持フレーム１０１の前部に複数条分の玉葱の茎葉部を切断する左右揺動式のレシプロカッタ１０２を設け、切断駆動モータ１０３と該切断駆動モータ１０３の駆動力をレシプロカッタ１０２に伝動するクランクアーム１０４を、前記回動アーム１００の前端部の機体左右一側に配置する。前記レシプロカッタ１０２の機体左右他側端部は、前記縦引起し装置６３の機体左右他側端部と略同一位置に配置する。
また、前記切断支持フレーム１０１の後部に所定間隔を空けて複数の転輪支持プレート１０５，１０５，１０５を設け、該複数の転輪支持プレート１０５，１０５，１０５の前端部に圃場面またはマルチフィルム表面に接触する複数の接地転輪１０６，１０６，１０６を各々遊転自在に設けることにより、茎葉切断装置１０７が構成される。圃場面に該複数の接地転輪１０６，１０６，１０６が接地することにより、圃場の凹凸に合わせてレシプロカッタ１０２の茎葉部の切断高さが自動変更される、フローティングが可能となる。
なお、複数の接地転輪１０６，１０６，１０６を各々支持する複数の転輪支持プレート１０５，１０５，１０５の切断支持フレーム１０１への取付間隔は、縦引起し装置６３を構成する複数の縦引起しベルト６２，６２，６２のそれぞれの左右間隔と略同じとすると、玉葱同士の植付条の間を複数の接地転輪１０６，１０６，１０６が確実に通過することができるので、複数の接地転輪１０６，１０６，１０６が玉葱に接触して玉葱が傷付くことが防止され、玉葱の商品価値が向上すると共に、第２の茎葉切断装置１０７の茎葉切断高さが不必要な変化をしないので、茎葉部の切断位置が適切になる。
加えて、収穫する玉葱の左右両側からマルチフィルムを抑え付けることができるので、マルチフィルムと倒伏している茎葉部との間に縦引起しラグ６２ａ…が進入する空間部が確保され、引抜搬送装置２０による茎葉部の挟持及び引抜が確実に行われ、玉葱の抜き残しが生じにくく、抜き残された玉葱を収穫する作業に要する時間と労力が軽減される。
さらに、転輪支持プレート１０５，１０５，１０５には、接地転輪１０６，１０６，１０６を装着する取付孔１０５ａ…を上下方向に複数個形成し、作業条件に合わせて接地転輪１０６，１０６，１０６を取り付ける取付孔１０５ａ…を変更することにより、茎葉部の切断高さを変更可能な構成とする。
そして、前記クランクアーム１０４の下方には、切断駆動モータ１０３から駆動力を受けてレシプロカッタ１０２側に茎葉を搬送する方向（平面視で時計回り方向）に回転する、外周縁部に凹凸を等間隔毎に形成した茎葉部ガイドディスク１０８を設ける。該茎葉部ガイドディスク１０８は、茎葉部の引き上げを行う機体前側の引き上げ作用域がレシプロカッタ１０２よりも下方に位置し、引き上げた茎葉部をレシプロカッタ１０２に案内する案内作用域から機体後側がレシプロカッタ１０２よりも上方に位置する、後上がり傾斜姿勢で配置する。
上記構成により、切断駆動モータ１０３とクランクアーム１０４を切断支持フレーム１０１の機体左右一側端部に設けたことにより、切断駆動モータ１０３やクランクアーム１０４が隣接条の玉葱の茎葉部に引っ掛かることを防止できるので、隣接条の玉葱を引き起こして引抜搬送装置２０で引き抜き収穫できなくなることが防止され、抜き残される玉葱を引き抜く作業に要する時間と労力が軽減される。
また、茎葉部が切断駆動モータ１０３やクランクアーム１０４に絡み付いて作動停止させてしまうことが防止されるので、茎葉部の切断が確実に行われ、収穫作業後の茎葉部の除去作業に要する時間と労力が軽減されると共に、引き抜かれる玉葱がマルチフィルムを持ち上げてしまうことを防止できるので、マルチフィルムの回収が容易になると共に、引抜搬送装置２０がマルチフィルムを巻き込んで停止し、作業が中断されることが防止される。
そして、切断支持フレーム１０１に複数の転輪支持プレート１０５，１０５，１０５を設け、この転輪支持プレート１０５，１０５，１０５に接地転輪１０６，１０６，１０６を各々設けたことにより、圃場面の凹凸に合わせて回動アーム回動して第２の茎葉切断装置１０７が上下方向に移動し、茎葉部の切断高さが自動的に変更されるので、茎葉部の切断位置が高過ぎて玉葱の可食部に茎葉部が残ることが防止され、この不要な茎葉部を除去する作業に要する時間と労力が軽減される。
加えて、茎葉部の切断位置が低過ぎて玉葱の可食部が切断されることを防止できるので、玉葱の可食部が傷付いて商品価値が低下することが防止される。
さらに、転輪支持プレート１０５，１０５，１０５に複数の取付孔１０５ａ…を各々上下方向に複数個形成したことにより、作業条件に合わせて接地転輪１０６，１０６，１０６の上下位置を変更することができるので、いっそう茎葉部の切断高さが適切な高さに自動調節され、茎葉部の切断精度が向上する。
また、クランクアーム１０４の下方に、切断駆動モータ１０３から駆動力を受けてレシプロカッタ１０２側に向かって回転する茎葉部ガイドディスク１０８を設け、この茎葉部ガイドディスク１０８の外周部に等間隔毎に凹凸部を形成したことにより、茎葉部ガイドディスク１０８に接触した搬送途中の玉葱の茎葉部をレシプロカッタ１０２に案内することができるので、茎葉部がレシプロカッタ１０２から逃げて切断されずに残ることが防止され、茎葉部の除去作業に要する時間と労力が軽減される。
加えて、茎葉部が切断されずに引抜搬送装置２０に挟持搬送され続けることを防止できるので、玉葱がマルチフィルムを押し上げて圃場面から剥がしてしまうことが防止され、マルチフィルムの回収作業が能率的に行えると共に、引抜搬送装置２０がマルチフィルムを巻き込んで停止してしまうことが防止され、作業能率が向上する。
そして、茎葉部ガイドディスク１０８を、茎葉部の引き上げ作用域がレシプロカッタ１０２よりも下方に位置し、引き上げた茎葉部をレシプロカッタ１０２に案内する案内作用域から機体後側がレシプロカッタ１０２よりも上方に位置する、後上がり傾斜姿勢で配置したことにより、圃場面に倒伏している茎葉部を引き上げてレシプロカッタ１０２の切断作用部に確実に案内することができるので、いっそう茎葉部の切断ミスの発生頻度が低下し、作業能率の向上や、茎葉部の除去作業に要する時間と労力の軽減が図られる。
なお、図１３で示す通り、前記切断支持フレーム１０１の機体左右他側端部を延長し、この延長部分から機体前側方向に向かって第２切断支持アーム１０９を設け、前記レシプロカッタ１０２を左右幅が半分の左右のレシプロカッタ１０２Ｌ，１０２Ｒで構成する。そして、該右側のレシプロカッタ１０２Ｒを前記切断支持アーム１０１の前端部に切断駆動モータ１０３とクランクアーム１０４と共に設け、該左側のレシプロカッタ１０２Ｌを前記第２切断支持アームの前端部に切断駆動モータ１０３とクランクアーム１０４と共に設ける。
さらに、左側の切断駆動モータ１０３から駆動力を得て反時計回りに回転する茎葉ガイドディスク１０８を、茎葉部の引き上げを行う機体前側の引き上げ作用域が左側のレシプロカッタ１０２Ｌよりも下方に位置し、引き上げた茎葉部を左側のレシプロカッタ１０２Ｌに案内する案内作用域から機体後側が左側のレシプロカッタ１０２Ｌよりも上方に位置する、後上がり傾斜姿勢で配置する構成とする。
なお、前記左右のレシプロカッタ１０２Ｌ，１０２Ｒの左右間を、補強板１０２ａで連結すると、レシプロカッタ１０２Ｌ，１０２Ｒの姿勢が振動等で変わることが防止されると共に、強度が向上する。さらに、この補強板１０２ａの前端部に固定式の接触刃１０２ｂを設けておくと、左右のレシプロカッタ１０２Ｌ，１０２Ｒの左右間に移動してきた茎葉部を切断することができるので、茎葉部の切り残しの発生が防止される。
上記構成により、機体左右他側にも茎葉ガイドディスクを設けたことにより、機体左右他側の圃場に倒伏している玉葱の茎葉部を左のレシプロカッタ１０２Ｌの切断作用部に案内することができるので、いっそう茎葉部の切断ミスの発生頻度が低下し、作業能率の向上や、茎葉部の除去作業に要する時間と労力の軽減が図られる。
また、左右両側に切断駆動モータ１０３，１０３を各々設け、左右のレシプロカッタ１０２Ｌ，１０２Ｒをそれぞれ別々に駆動させることができるので、太い茎葉部を切断する際に駆動力が不足して茎葉部が切り残されることが防止され、茎葉部の除去作業に要する時間と労力が軽減されると共に、マルチフィルムが剥がされることが防止され、作業能率の向上が図られる。
次に、第３の茎葉切断装置 について説明する。
図１４から図１７で示す通り、前記回動アーム１００の前端下部に左右方向に長い切断フレーム１１０を設け、該切断フレーム１１０の機体左右一側下部に切断駆動モータ１１１と該切断駆動モータ１１１から駆動力を受けて回転する駆動切断スプロケット１１２を設ける。また、該切断フレーム１１０の機体左右他側下部に従動切断スプロケット１１３を回転自在に設け、該従動切断スプロケット１１３と駆動切断スプロケット１１２とに亘って切断チェーン１１４を無端状に巻回する。該切断チェーン１１４の外周部には、等間隔毎に切断刃１１５…を設けることにより、切断チェーンソー１１７が構成される。そして、前記切断フレーム１１０の前後端部の下部には、等間隔毎に固定切断刃１１６…を設けて、茎葉部を切断刃１１５…と固定切断刃１１６…とで挟み切る構成とする。
なお、前記駆動切断スプロケット１１２及び従動切断スプロケット１１３は、外周縁部に等間隔に切断刃部を設ける形状とすると、切断刃１１５…と固定切断刃１１６…で茎葉部を挟み切り損なっても、駆動切断スプロケット１１２及び従動切断スプロケット１１３と切断チェーン１１４との間で茎葉部を挟み切ることができるので、茎葉部が切断されないまま引抜搬送装置２０が玉葱を引き抜き、マルチフィルムを持ち上げることが防止される。
さらに、前記切断チェーン１１４の巻回域内で且つ切断フレーム１１０の下部に、上下方向に複数の取付孔１１８ａ…を形成した複数の転輪支持プレート１１８，１１８，１１８を各々設け、該複数の転輪支持プレート１１８，１８，１１８に複数の接地転輪１１９，１１９，１１９を各々設けて、フローティング自在に構成する。
また、前記切断フレーム１１０の上面に、切断チェーンソー１１７から前方に突出してマルチフィルムを抑える複数のガード体１２０，１２０，１２０を設ける。該複数のガード体１２０，１２０，１２０は、基部を切断フレーム１１０の上面に取り付け、切断フレーム１１０の前端部よりも前方に突出し、切断刃１１５…及び固定切断刃１１６…の先端部よりも前側下方に突出したところで屈曲させ、端部を切断フレーム１１０の下方に位置させる形状とする。
なお、前記複数の転輪支持プレート１１８，１８，１１８及び複数のガード体１２０，１２０，１２０同士の配置間隔は、前記縦引起し装置６３を構成する複数の縦引起しベルト６２，６２，６２同士の左右間隔と略同じとすると、玉葱同士の植付条の間を複数の接地転輪１１９，１１９，１１９が確実に通過することができるので、複数の接地転輪１１９，１１９，１１９が玉葱に接触して玉葱が傷付くことが防止され、玉葱の商品価値が向上すると共に、第３の茎葉切断装置１２２の茎葉切断高さが不必要な変化をしないので、茎葉部の切断位置が適切になる。
加えて、収穫する玉葱の左右両側からマルチフィルムを抑え付けることができるので、マルチフィルムと倒伏している茎葉部との間に縦引起しラグ６２ａ…が進入する空間部が確保され、引抜搬送装置２０による茎葉部の挟持及び引抜が確実に行われ、玉葱の抜き残しが生じにくく、抜き残された玉葱を収穫する作業に要する時間と労力が軽減される。
そして、前記切断フレーム１１０の上面の前端部で且つ機体左右一側端部に、端部側に向かうにつれて機体後側に向かって屈曲する排葉案内ガイド１２１を設けることにより、第３の茎葉切断装置１２２が構成される。
上記構成により、茎葉部を所定方向に回転する切断チェーンソー１１７で切断することにより、切断した茎葉部を切断チェーン１１４の外周部に設ける複数の切断刃１１５…で機体左右他側から機体左右一側に向かって移動させることができるので、茎葉部は畝溝に排出され、天日乾燥のために圃場面に排出した玉葱を茎葉部が覆い隠すことがなく、玉葱の乾燥が確実に行われる。
また、圃場に排出された玉葱を回収する際、茎葉部を一緒に回収することがないので、回収された玉葱から茎葉部を選り分けて取り除く作業が不要となり、作業能率が向上すると共に、労力や時間が軽減される。
さらに、マルチフィルム上に切断された茎葉部が残ることを防止できるので、マルチフィルムを剥ぎ取って回収する作業の前に茎葉部をマルチフィルム上から落とす作業が不要となり、作業能率が向上する。
また、切断フレームの上面の前端部で且つ機体左右一側端部に、端部側に向かうにつれて機体後側に向かって屈曲する排葉案内ガイド１２１を設けたことにより、切断チェーンソー１１７に切断された後、機体左右一側に向かって搬送されてきた茎葉部を畝溝に案内して排出することができるので、茎葉部が切断チェーンソー１１７に運ばれ続けて他の茎葉部の切断作業を妨げることが防止され、茎葉部の切断精度が向上する。
加えて、排出される茎葉部が畝溝に確実に案内されるので、土中から引き上げた玉葱の上や、マルチフィルム上に茎葉部が落下することが防止され、玉葱の乾燥が能率的に行えると共に、マルチフィルムの回収作業能率が向上する。
そして、切断フレーム１１０の下面で且つ外周縁部に固定切断刃１１６…を等間隔毎に設けることにより、切断チェーン１１４の回転移動に伴い移動する複数の切断刃１１５…と固定切断刃１１６…で茎葉部を挟み切ることができるので、茎葉部が太くても確実に切断することができ、収穫作業後に茎葉部の除去作業を行う時間と労力が軽減される。
加えて、茎葉部が切断されず引抜搬送装置２０が玉葱を引き上げ過ぎ、マルチフィルムを持ち上げて剥がしてしまうことが防止されるので、マルチフィルムの回収作業能率が向上すると共に、マルチフィルムが巻き込まれて引抜搬送装置２０が停止することが防止される。
さらに、切断フレーム１１０の下部に複数の接地転輪１１９，１１９，１１９を設けたことにより、圃場面の凹凸を複数の接地転輪１１９，１１９，１１９が通過すると回動アーム１１０が上下回動して第３の茎葉切断装置１２２が上下方向に移動し、茎葉部の切断高さが自動的に変更されるので、茎葉部の切断位置が高過ぎて玉葱の可食部に茎葉部が残ることが防止され、この不要な茎葉部を除去する作業に要する時間と労力が軽減される。
加えて、茎葉部の切断位置が低過ぎて玉葱の可食部が切断されることを防止できるので、玉葱の可食部が傷付いて商品価値が低下することが防止される。
さらに、転輪支持プレート１１８，１１８，１１８に複数の取付孔１１８ａ…を各々上下方向に複数個形成したことにより、作業条件に合わせて接地転輪１１９，１１９，１１９の上下位置を変更することができるので、いっそう茎葉部の切断高さが適切な高さに自動調節され、茎葉部の切断精度が向上する。
そして、切断フレーム１１０の上面に基部をも受けて機体前側に突出させ、切断刃１１５…と固定刃１１６…の前端部よりも前側位置で屈曲させて切断チェーンソー１１７の下方に端部を位置させた複数のガード体１２０，１２０，１２０を設けたことにより、玉葱やマルチフィルムが切断チェーンソー１１７に接触することを防止できるので、玉葱が傷付いて商品価値が低下することが防止されると共に、マルチフィルムが切られて破れ、回収作業が困難になることが防止される。
また、ガード体１２０，１２０，１２０はマルチフィルム上に接触するので、抑えられたマルチフィルムは浮き上がりにくくなり、いっそう切断チェーンソー１１７に切断されることが防止され、マルチフィルムの回収作業能率が向上する。
さらに、ガード体１２０，１２０，１２０の後部側は開放されているので、切断された茎葉部が引っ掛かりにくく、茎葉部を引き摺りながら作業することが防止される。
なお、図１８で示す通り、切断刃１１５…と固定切断刃１１６…は、切断チェーン１１４の回転方向とは逆の側に刃部ｖ２を形成しておくと、先に使用する刃部ｖ１が長期間の使用により刃こぼれして切断性能を低下させても、切断チェーン１１４及び切断フレーム１１０をひっくり返すと未使用の側の刃部ｖ２を使用できる構成となる。
上記構成により、切断刃１１５…と固定切断刃１１６…の切断性能を長期間に亘って維持することができるので、耐久性が大幅に向上すると共に、収穫機のランニングコストが削減できる。
上記の第３の茎葉切断装置１２２には、さらに下記の構成を追加する。
前記切断フレーム１１０の左右両側及び後部を、切断フレーム１１０の下方から圃場面近傍に亘って覆うガードカバー１２３を設ける。該ガードカバー１２３のうち、機体左右一側の側部には、前記切断チェーンソー１１７によって運ばれてきた茎葉部を排出する排出口１２３ａを形成する。
これにより、第３の茎葉切断装置１２２がある場所が作業者にわかりやすくなるので、作業者が不用意に第３の茎葉切断装置１２２に近付くことがなく作業の安全性が向上する。なお、非作業時には、第３の茎葉切断装置１２２の前側、及び排出口１２３ａを塞ぐカバー（図示省略）を用意しておくと、移動時に切断刃１１５…や固定切断刃１１６…が周辺に接触することが確実に防止され、接触したものが傷付いたり、切断刃１１５…や固定切断刃１１６…が刃こぼれしたりすることが防止される。
また、前記ガードカバー１２３は圃場面またはマルチフィルムに接触した際、ガードカバー１２３が破損したり、マルチフィルムを破ったりすることを防止すべく、軟質部材で構成することが望ましい。ゴムや塩化ビニル等の板体とすると、着脱が容易に行えるが、無数の毛体で構成するブラシで構成すると、圃場面やマルチフィルムと接触した際の抵抗がいっそう小さくなり、マルチフィィルムが破れることが防止される。さらに、ブラシであれば、マルチフィルム上に堆積した葉屑や砂等の掃除も行え、マルチフィルムに余分なものが付着していない状態で回収することが可能となる。
また、第３の茎葉切断装置１２２の下方はガードカバー１２３に覆われないので、第３の茎葉切断装置１２２の下方からメンテナンスを行うことができるので、詰まりの解消等の簡単な作業の際に第３の茎葉切断装置１２２を分解して組み直す作業が不要となり、メンテナンス性や作業能率が向上する。 Embodiments of the present invention will be described.
FIG. 1 to FIG. 7 show a walking type onion harvester which is a kind of crop harvester shown as one of the embodiments. In the present invention, the right side is referred to as the left and right sides and the left side is referred to as the left and right other sides with respect to the forward direction of the aircraft. Moreover, in this case, although it demonstrates as an operation | work form which draws and harvests four onions on a 4-row basis basically, unless there is particular mention, it does not limit the number of the drawing harvest operations.
As shown in FIGS. 1 and 2, a drive case 4 that houses an engine 2 and a transmission case 3 is provided at the rear part of the main frame 1, a fuel tank 5 is provided above the drive case 4, and a branch transmission case is provided at the front part. 6 is provided. Then, the base portions of the left and right handle support frames 7 and 7 having a “H” shape in a side view are provided in a vertical posture at the front portion of the branch transmission case 6, and above the bent portions of the left and right handle support frames 7 and 7. Are arranged in a tilted posture, and the rear end portions of the left and right handle support frames 7, 7 are connected by a handle 8 having a "U" shape in plan view. The handle 8 is disposed so as to protrude rearward from the fuel tank 5, and clutch handles 9 and 9 for turning on and off a side clutch mechanism (not shown) are provided on the left and right sides of the handle 8, respectively.
Further, as shown in FIG. 2, a travel operation lever 10 for operating the forward / backward movement and travel speed of the airframe is provided on the left and right sides of the fuel tank 5, and a work operation lever 11 for switching on / off of the harvesting work on the left and right sides. Is provided.
Then, left and right pulling drive shafts 12 and 12 are provided in a downwardly inclined posture toward the front upper side from the branch transmission case 6, and left and right pulling drive pulleys 13 and 13 are provided at upper ends of the left and right pulling drive shafts 12 and 12. And a leaf drive pulley 14 is mounted below the pull-out drive pulley 13 on the left and right sides. Further, left and right pulling frames 15 and 15 having long sides in the front-rear direction are provided at the lower portions of the left and right pulling drive pulleys 13 and 13 respectively in a tilted rearward posture, and left and right at the front end portions of the left and right pulling frames 15 and 15. The pulling driven pulleys 16 and 16 are rotatably provided. Further, a plurality of left and right pulling driven pulleys 16, 16 and a left and right pulling driving pulleys 13, 13 are rotatably provided between the left and right pulling driven pulleys 13, 13. The left and right pulling drive pulleys 13 and 13 and the left and right tension rollers 17, 17... Then, the left and right pulling covers 19, 19 are provided above the left and right pulling frames 15, 15 in a parallel posture with the left and right pulling frames 15, 15, that is, in a back-up tilting posture in which the tilt angle is substantially the same. A transport device 20 is configured.
Further, a base portion side of the leaflet frame 21 is provided below the leaflet drive pulley 14, the end portion side of the leaflet frame 21 protrudes toward the left and right sides of the rear side, and the end of the leaflet frame 21 is A leaf leaf driven pulley 22 is rotatably provided on the part side. The leaf drive belt 14 provided with a plurality of leaf lugs 23 a... For hooking the leaf leaves to the leaf drive pulley 14 and the leaf driven pulley 22 is wound, and a leaf cover is disposed above the leaf frame 21. The leaflet conveying device 25 is configured by arranging 24 in a parallel posture, that is, by projecting the end portion toward the left and right sides of the rear side.
With the above-described configuration, when the foliage portion of the onion cut by the cutting rotary blade 49 and the cutting fixed blade, which will be described later, moves to the terminal end portion of the pulling and conveying device 20, the foliage portion is collected and conveyed by the drainage lugs 23a. Since it is discharged out of the machine or onto the right drive wheel 84R, which will be described later, from the conveyance terminal part of the leaf delivery apparatus 25 protruding to the left and right sides of the machine body, the leaves and leaves are prevented from remaining on the machine body and cut. The removal operation of the foliage part becomes easy and the maintainability improves.
Further, as shown in FIG. 1, left and right eccentric cams 26, 26 are provided on both the left and right sides of the branch transmission case 6, and the left and right swing rods 27, 27 are respectively attached to the left and right eccentric cams 26, 26. The left and right solitary arms 28, 28 having long sides in the vertical direction are provided at the front end portions of the left and right rocking rods 27, 27 so as to be rotatable in the front-rear direction. A plurality of mounting holes 28a... Are formed on the lower side of the soiler arms 28, 28 in the vertical direction, and either of the mounting holes 28a. The left and right digging soilers 29, 29 are combined with holes 29a, which are oscillated to be mounted, and are attached via fixing members 29b, such as bolts.
The left and right digging soilers 29, 29 are formed in an L shape (reverse L shape) when viewed from the front by bending the lower side toward the drawing and conveying area R side.
Furthermore, the upper ends of the left and right rotary shafts 16a, 16a of the left and right pulling driven pulleys 16, 16 provided at the front end of the pulling / conveying device 20 are protruded upward through the left and right pulling covers 19, 19, Left and right transmission cases 34 and 34 having left and right input pulleys 31 and 31 mounted in the front side of the machine body are provided at the upper ends of the left and right pull-out covers 19 and 19 at the upper end portions of the left and right rotating shafts 16a and 16a. In addition, left and right output pulleys 32 and 32 are rotatably mounted on the rear side of the left and right transmission cases 34 and 34, and the left and right input pulleys 31 and 31 and the left and right output pulleys 32 and 32 have left and right transmissions. Each of the belts 33 and 33 is wound.
Then, the lower ends of the left and right first universal joints 35 and 35 are mounted on the upper sides of the left and right output pulleys 32 and 32, and the left and right laterally driven are driven at the upper ends of the left and right first universal joints 35 and 35. Each of the pulleys 36 and 36 is mounted, and the left and right laterally raised frames 37 and 37 to which the left and right laterally driven drive pulleys 36 and 36 are mounted are arranged in a rear-upward inclined posture. The rearward tilt angle of the left and right laterally raised frames 37, 37 is set larger than the rearward tilt angle of the left and right pull-out frames 15, 15. Then, left and right laterally driven driven pulleys 38, 38 are rotatably provided at the lower ends of the left and right laterally raised frames 37, 37, respectively, and the left and right laterally driven drive pulleys 36, 36 and the left and right laterally raised pulleys are provided. A plurality of lateral pulling tension pulleys (not shown) are provided between the upper and lower sides of the driven pulleys 38 and 38. Further, the left and right lateral pulling drive pulleys 36, 36, the left and right horizontal pulling driven pulleys 38, 38, and a plurality of horizontal pulling tension pulleys, a plurality of horizontal pulling lugs 39a formed of an elastic material such as rubber or sponge. Left and right laterally raised belts 39, 39 are wound around the left and right laterally raised belts 39, 39, and left and right laterally raised frames 37, 37 are parallel to the left and right laterally raised frames 37, 37. By providing the cover 40, 40, a lateral pulling device 41 is configured.
The laterally raised lugs 39, 39... Provided on the left and right laterally raised belts 39, 39 are arranged at positions where their tip portions are close to the drawing conveyance area R of the drawing conveyance device 20 and are not in contact with each other.
The above configuration prevents the lugs 39a and 39a from coming into contact with each other, preventing the fall of the stems and leaves caused by the impact of the contact, and reliably pulling the onion from the field by the pulling and conveying device 20. It can be pulled out and work efficiency is improved.
Further, a support frame 42 is provided so as to protrude from the branch transmission case 6 toward the lower front side of the machine body, and a rear link frame 43 that is long in the left-right direction is provided at the front end of the support frame 42. The left and right front link frames 44 and 44 are provided below the front end portions of the left and right pull-out frames 15 and 15 so as to be movable in the vertical direction, and extend between the left and right front link frames 44 and 44 and the rear link frame 43. Thus, a pair of upper and lower link arms 45u, 45d, 45u, 45d are mounted so as to be rotatable in the vertical direction. The support frame 42 is arranged in a horizontal posture with reference to the drawing / conveying device 20.
Further, in the vicinity of the front ends of the left and right drawing frames 15 and 15, left and right hollow support pipes 15a and 15a are provided so that the opening faces the lower side of the machine body, and the left and right hollow support pipes 15a and 15a Holes 44a and 44b are formed on the upper sides of the left and right front link frames 44 and 44, respectively, and the left and right hollow support pipes 15a and 15a are aligned with the holes of the left and right front link frames 44 and 44 to fix the pin 44c. The vertical movement of the left and right front link frames 44, 44 is restricted. A plurality of the holes 44a and 44b may be formed in the vertical direction, and the left and right front link frames 44 and 44 may be fixed at an arbitrary height.
Thereby, the cutting link mechanism 46 is configured.
Then, left and right cutting support arms 47, 47 are provided at the front portions of the left and right front link arms 44, 44, respectively, and left and right cutting drive motors 48, 48 are provided above the left and right cutting support arms 47, 47, respectively. Each is provided, and disc-shaped left and right foliage cutting blades 49L and 49R are rotatably mounted on the lower ends of the respective rotation shafts of the left and right cutting drive motors 48 and 48, respectively. The rotation output directions of the left and right cutting drive motors 48 and 48 are set so that the left and right foliage cutting blades 49L and 49R rotate in directions facing each other. If the left and right cutting drive motors 48, 48 are hydraulic motors, there is no need to add batteries or the like. On the other hand, when an electric motor is used, a battery (not shown) is provided at a position where there are no other members, such as below the drive case 4 or above the fuel tank 5, and power is supplied from this battery.
The left and right cutting support arms 47, 47 provided on the left and right front link arms 44, 44 are in a posture in which the longitudinal sides are in the vertical direction, and the left and right vertical link arms 45u, 45d, 45u, 45d are pivoted up and down. Even so, if it is configured to move up and down in the same posture, the cutting angles of the left and right foliage cutting blades 49L and 49R are unlikely to change, the cutting position of the foliage is stable, and the edible portion of the onion is prevented from being damaged. At the same time, the foliage is less likely to remain in the edible portion of the onion.
The outer peripheral edges of the left and right foliage cutting blades 49L and 49R may be formed with irregularities at equal intervals to form a gear shape. In addition, saw blade-shaped left and right scraping guide plates that are coaxial with the disc-shaped left and right foliage cutting blades 49L and 49R and have irregularities formed on the outer peripheral edge at equal intervals on the upper surfaces of the left and right foliage cutting blades 49L and 49R. 49a and 49a may be provided. By making the left and right foliage cutting blades 49L and 49R into a gear shape or a saw blade shape, the left and right foliage cutting blades 49L and 49R receive one rotational force as long as a part of the outer peripheral edge is in contact with the other. Therefore, one of the left and right cutting drive motors 48 and 48 can be excluded, and the number of parts can be reduced.
As shown in FIGS. 1, 2, 4, and 6, the left and right foliage cutting blades 49L and 49R are located on the left and right sides (right side) of the aircraft, and the foliage cutting blade 49R is located on the left and right sides (left side) of the aircraft. A part of the outer peripheral edge portion of the left and right foliage cutting blades 49L and 49R overlaps with the foliage cutting blade 49L positioned. The difference between the front and rear positions is caused by changing the lengths of the upper and lower link arms 45u and 45d on the left and right sides or by changing the positions of attachment to the front link frame 44 and the rear link frame 43 on the left and right sides of the body.
In the configuration of the present case, the left and right foliage cutting blades 49L and 49R are arranged as one set per one line. When harvesting two pieces of onion in one step, two sets of left and right foliage cutting blades 49L and 49R are arranged. Will be. At this time, as shown in FIG. 4 and FIG. 6, the foliage cutting blades 49 </ b> R and 49 </ b> R located on the left and right sides of the aircraft are located on the front side of the foliage cutting blades 49 </ b> L and 49 </ b> L located on the left and right sides of the aircraft, Arranged in a staggered pattern in plan view.
Further, hemispherical grounding bodies 50, 50 having arcuate surfaces facing the lower side of the machine body are attached to lower ends of the rotary shafts of the left and right cutting drive motors 48, 48 so as to be rotatable independently of the rotation of the rotary shaft. . The left and right grounding bodies 50, 50 are formed of an elastic body such as rubber, and are configured to be mounted on a rotating shaft via a bearing (not shown) or the like so that the position can be adjusted in the vertical direction.
Further, left and right extending metals 51, 51 having an L shape in a side view are provided on the upper portion of the rear link frame 43. Between the extending metals 51, 51 and the left and right upper link arms 45u, 45u, There are provided pressing springs 52, 52 for pressing the upper link arms 45u, 45u downward. Then, left and right push bolts 53, 53 are provided through the left and right extending metals 51, 51, and the amount of expansion of the left and right press springs 52, 52 increases or decreases according to the amount of insertion of the push bolts 53, 53. By setting it as the structure to perform, the foliage cutting device 54 which can be floated by which the cutting height is automatically changed following the unevenness | corrugation of a field scene is comprised.
With the above configuration, when the left and right grounding bodies 50, 50 that contact the surface of the farm scene or the surface of the multi-film move up and down according to the unevenness of the farm scene, the vertical height of the left and right foliage cutting blades 49L, 49R by the cutting link mechanism 46 Is automatically changed, the cutting position of the onion foliage is stable even if there are many irregularities in the field.
As a result, the cutting position becomes too high and the foliage part remains in the edible portion of the onion, and the time and labor required for the work process for removing the foliage part are greatly reduced, so that the work efficiency is improved and the operator is improved. The effort is reduced. In addition, since the cutting position becomes too low and the left and right foliage cutting blades 49L and 49R can prevent the edible portion from being cut, the product value and quality of the onion are prevented from being lowered.
The right foliage cutting blade 49R is arranged in front of the left foliage cutting blade 49L, and the adjacent streak is also arranged with the right foliage cutting blade 49R in front of the left foliage cutting blade 49L. As a result, the left and right widths of the aircraft can be reduced rather than arranging the left and right foliage cutting blades 49L, 49R without shifting left and right, so it is possible to harvest multiple strips of onions while maintaining a compact configuration. This can be done and the work efficiency is improved.
In addition, since the left and right widths of the airframe are suppressed, it is possible to efficiently load the transportation means such as trucks on the loading platform and store them in the warehouse, and it is not necessary to secure a large space for storage. Further, since the turning radius is suppressed when turning at the field end, the running performance is improved, and the inside of the machine body is prevented from coming into contact with and damaging the unharvested onion or the onion released into the field during turning.
Then, the front and rear lengths of the fuselage are accommodated from the left and right foliage cutting portions 49L and 49R, which are the front end portions of the foliage cutting device 54, to the support frame 42, which is the rear end portion, below the front and rear lengths of the pulling and conveying device 20. Therefore, the loading operation, the storing operation, and the turning traveling can be further facilitated, and the space for storing the aircraft can be easily secured.
In addition, by using the left and right cutting drive motors 48 and 48 as the driving force of the left and right foliage cutting blades 49L and 49R, the driving force is stably supplied to the left and right foliage cutting blades 49L and 49R that move up and down by floating. Therefore, it is prevented that the rotation of the left and right foliage cutting blades 49L and 49R is stopped or the rotation speed is remarkably reduced during cutting of the foliage, so that the foliage is not left uncut. The work to remove becomes unnecessary.
Then, by providing the scraper guide plates 49a, 49a that are coaxial with the left and right foliage cutting blades 49L, 49R and on the upper surface thereof, the stems and leaves of the onion are formed by the unevenness of the scraper guide plates 49a, 49a. Since the left and right foliage cutting blades 49L and 49R are conveyed to the overlapping position, the foliage is prevented from escaping from the cutting position, and the foliage is reliably removed.
Further, the left and right grounding bodies 50, 50 made of an elastic body are formed in a hemispherical shape, and their foliage is laid on the field where the multi-film is laid by grounding the arcuate surface of the grounding body to the field scene. Even if the cutting device 54 is operated while floating, the cutting work height of the left and right foliage cutting blades 49L and 49R can be set to a height that matches the unevenness of the field scene without breaking the multi-film. The cutting position is stabilized and the commercial value of the onion is improved, the multi-film is prevented from being broken, and the multi-film recovery operation after the harvesting operation is facilitated, and the work efficiency is improved.
Further, since the left and right grounding bodies 50, 50 are mounted so as to be rotatable independently of the rotation of the rotation shafts of the cutting drive motors 48, 48, the left and right grounding bodies 50, 50 come into contact with the onion or multi-film. Further, since it is possible to prevent the onion from being flipped off and the multi-film wound up and torn, an increase in time and labor required for collecting the onion and the multi-film can be prevented.
And by making it possible to change the vertical height of the left and right grounding bodies 50, 50, the left and right grounding bodies 50, 50 are positioned at positions that match the height, soil quality, occurrence frequency of foliage cutting, etc. Since the work height can be adjusted, settings that are suitable for the conditions of the work location and settings that reduce the frequency of work errors are easier, improving work efficiency and improving the commercial value of the crop. .
Furthermore, when the hole 44a formed in the upper part of the left and right hollow support pipes 15a, 15a and 44b formed in the upper part side of the left and right front link frames 44, 44 are combined and the fixing pin 44b is passed, the left and right front link frames Since the vertical movement of 44, 44 is restricted, the cutting height of the onion stem and leaves can be kept constant, so that the cutting height of the leaves and leaves tends to be disturbed if there are many irregularities floating. It is possible to appropriately cope with work in the field and work in a farm field that has very little unevenness and does not need to be floated.
Further, by providing left and right pressing springs 52, 52 for pressing the left and right upper link arms 45u, 45u downward between the left and right extending metals 51, 51 and the left and right upper link arms 45u, 45u, Even if the left and right grounding bodies 50 and 50 are in a floating state due to the recesses or the like, the left and right upper link arms 45u and 45u are pushed down by the urging force of the left and right pressing springs 52 and 52, and the cutting link mechanism 46 is lowered and left and right Since the grounding bodies 50 and 50 can be grounded to the farm scene, the cutting work height of the left and right foliage cutting blades 49L and 49R is prevented from being maintained at a high position, and the cutting accuracy of the foliage is improved. To do.
And, by operating the left and right push bolts 53, 53, the amount of expansion / contraction of the left and right pressure springs 52, 52 can be adjusted freely, so when there are many large irregularities and the cutting height of the foliage part changes too frequently. By inserting the left and right push bolts 53, 53 to reduce the amount of expansion / contraction of the left and right pressure springs 52, 52, it is possible to prevent the cutting accuracy of the foliage from being lowered.
On the other hand, when it is desired to ensure that the foliage cutting device 54 floats even with small irregularities, the right and left push bolts 53 and 53 are loosened to increase the expansion and contraction amounts of the left and right push springs 52 and 52. Since the cutting work height can always be secured, the cutting accuracy of the foliage is improved.
As shown in FIGS. 1 to 3, a second branch transmission case 6a is provided on the left and right other sides of the branch transmission case 6, and the output shaft 57 is raised from the front of the second branch transmission case 6a toward the front of the machine body. A bevel case 58 a is provided for changing the driving force in the direction from the left and right other sides to the left and right sides. A pair of bevel gears (not shown) are housed inside the bevel case 58 a, and the drive force of the output shaft 57 is vertically raised and transmitted to the transmission shaft 58 via the pair of bevel gears. Then, the longitudinally driven drive pulleys 59, 59, 59 are respectively attached to the longitudinally raised transmission shaft 58 at the left and right one side ends, the left and right other side ends and the substantially central portion in the left and right direction, and the longitudinally driven drive pulleys are mounted. A vertically raised cover 60, 60, 60 that covers both the left and right sides of 59, 59, 59 is mounted in a rear-up tilted posture and freely rotatable up and down. Further, the longitudinally driven covers 60, 60, 60 are respectively provided with longitudinally driven pulleys 61, 61, 61 at the lower end portions thereof, and the longitudinally driven driving pulleys 59, 59, 59 and the vertically driven driven pulleys 61, 61 are provided. , 61 is wound around longitudinally erecting belts 62, 62, 62 provided with a plurality of vertically elevating lugs 62a...
It should be noted that the rearward tilt angle of the vertical pulling device 63 is substantially the same as the rearward tilt angle of the horizontal pulling device 41. As a result, the foliage portion caused by the vertical pulling device 63 is pulled up vertically and is laterally raised at a timing away from the lugs 62a, so that it is taken over by the horizontal pulling lugs 39a of the device 41. 20 can be guided to the conveyance start end portion, and the onion harvesting efficiency can be improved.
As shown in FIG. 1 and FIG. 2, the base portion side of the second universal joint 64 is provided at the left and right end portions of the longitudinally raising transmission shaft 58, and the end portion side of the second universal joint 64 is bent rearward. Then, the wrinkle is raised and the drive pulley 65 is attached. Further, a hook raising cover 66 having a long side in the vertical direction that covers both the left and right sides of the drive pulley 65 is provided in a tilted rearward posture and is capable of pivoting back and forth, and is provided at the lower end of the hook raising cover 66. The hook is pulled up and the driven pulley 67 is rotatably mounted. Further, a plurality of tension pulleys (not shown) are provided between the front and rear driving pulleys 65 and the driven pulley 67, so that the driving pulley 65 and the driven pulley 67 are pulled up and the driven pulley 67 and the tension pulley are pulled up. The belt 68 is wound. Further, the heel raising belt 68 is provided with a plurality of ridge groove raising lugs 68a formed of an elastic body such as rubber or sponge at predetermined intervals, so that the balls hanging from the ridge grooves on the left and right sides of the machine body are suspended. A grooving raising device 69 that causes the foliage of the body is configured.
The grooving raising device 69 is configured to be easily detached when the second universal joint 64 is removed from the transmission shaft 58 by vertically raising the grooving device 69. When working in a field where the foliage does not hang down in the grooving, Unnecessary driving force is eliminated, the work efficiency is improved, and the fuel consumption is prevented from being lowered.
Further, a gauge wheel lifting case 70 is provided at the left and right side ends of the longitudinally raised transmission shaft 58 and behind the second universal joint 64, and a hollow upper arm 71 is provided below the gauge wheel lifting case 70, A lower arm 72 for rotatably mounting a gauge ring 73 is provided in the hollow portion of the upper arm 71 so as to be movable up and down. Further, the upper and lower ends of the pantograph mechanism 74 are provided on the upper arm 71 and the lower arm 72, respectively, and are provided on one side of the left and right sides of the cover 66 on the support roller 74a provided on the fulcrum shaft of the pantograph mechanism 74. The receiving plate 66a is placed.
A driving plate 4 is provided with a fixing plate 75. A turnbuckle 76 capable of adjusting the longitudinal length is provided between the fixing plate 75 and the rear portion of the gauge wheel lifting case 70, and the turnbuckle 76 is extended or contracted. A gauge wheel adjusting handle 77 for moving the lower arm 72 up and down is provided.
In addition, the said groove raising device 69 is arrange | positioned with the attitude | position which inclines to the left-right side of a body, so that it goes to a lower end part side from an upper end part side by front view. With this structure, the lag 68a... Is easily brought into contact with the shoots and leaves that hang down along the ridges, so that the shoots and leaves hanging down in the ridges are surely caused, and the shoots and feet are stepped on the gauge ring 73. This prevents the occurrence of stagnation in the work that is caused and the harvesting work.
In addition, the lugs 68a... Are raised toward the upper end side, and the lugs 68a... Are vertically raised on the left and right sides of the fuselage and approach the belt 62. Thus, the onion drawing and harvesting work efficiency is improved, and the work of collecting the onion left on the field by the worker is omitted, and the labor of the worker is reduced.
The gauge ring 73 is configured to be positioned on the rear side of the eaves groove raising device 69 regardless of the vertical position. As an example, the rear side of the eaves groove raising device 69, that is, the region that is not the elevating action area of the eaves and leaves of the eaves groove may be on the gauge ring 73. Further, when the turnbuckle 76 uses a universal joint whose front and rear end portions are bendable, it is easy to cope with a change in angle, and the range of adjustment of the vertical position of the gauge ring 73 is widened.
With the above-described configuration, the vertical pulling device 63 and the horizontal pulling device 41 are surely connected to the onion by causing the stems and leaves of the onion hanging in the trough to fall before the gauge ring 73 steps. Since the stems and leaves can be caused, the caused stems and leaves can be pinched by the pulling / conveying device 20 and pulled out from the soil, so that the operator does not need to manually pull out the onion left behind. The effort is reduced.
In addition, even if the shoots and leaves of the onion on the harvesting basket hang down and entangled in the trough, the shoots on the adjacent strips can be unraveled by lifting the shoots together. And the onion can be reliably pulled out by the pulling and conveying device 20.
Then, by operating the gauge wheel adjusting handle 77 to raise or lower the lower arm 72 provided with the gauge wheel 73, the working position of the lateral pulling device 41 and the pulling / conveying device 20 can be changed according to the growth state of the onion and the height of the straw. Since it can be changed according to the height, the foliage part is pulled up and pulled out reliably, and the work efficiency is improved.
Further, by providing a pivoting portion of the pantograph 74 that connects the upper arm 71 and the lower arm 72 so as to be slidable in the front-rear direction, the grooved groove raising device 69 of the device 69 is interlocked with the change in the vertical position of the gauge wheel 73. Since the action position is automatically moved up and down, the adjustment work of the grooving device 69 is unnecessary, and the work efficiency is improved.
As shown in FIGS. 1 and 2, a right output shaft 78R is provided on one of the left and right sides of the drive case 4, and a traveling drive sprocket 79 is attached to the right output shaft 78. The traveling drive sprocket 79 is connected to the right traveling transmission case 80R. The interior is on the top side. Then, the right traveling transmission case 80R is in a rear-upward inclined posture, and a traveling driven sprocket 81 is rotatably mounted on the lower end side of the right traveling transmission case 80R located on the front side of the aircraft, and the traveling driving sprocket 79 and the traveling driven sprocket 81 are provided. The travel transmission chain 82 is wound around.
A tension sprocket may be provided in the winding region of the travel transmission chain 82, or a clutch mechanism may be provided that prevents the breakage by retracting from the travel transmission chain 82 to stop driving when a load is applied.
Further, an axle 83 is mounted on the traveling driven sprocket 81, and a right drive wheel 84R is provided on the axle 83. Further, left and right support plates 85 are provided at the rear upper end of the right traveling transmission case 80R, and the adjustment rod 86 is rotatable between the left and right support plates 85 and 85 and the rear portion of the upper frame 71. A swing adjusting handle 87 is provided for changing the rearward tilt angle of the right traveling case 80R by rotating the adjusting rod 86. An upper frame 71 is attached to the front end portion of the adjustment rod 86 so as to be rotatable forward and backward.
According to the above configuration, when the tilt angle of the right driving wheel 84R is changed by operating the swing adjustment handle 87 to change the rearward rising inclination angle of the right traveling transmission case 80R, the work is performed on a field where the slope or the heel has collapsed. When changing the position, the vertical position of the right drive wheel 84R can be changed so that the aircraft can be placed in a substantially horizontal posture with respect to the field scene, so that the stems and leaves of the onion and the onion are pulled out reliably. The operator does not need to manually pull out the remaining onion, and the labor of the operator is reduced.
Further, since the upper frame 71 is mounted on the front end of the adjustment rod 86 so as to be rotatable up and down, when the swing adjustment handle 87 is operated to rotate the right traveling case 80R up and down, the upper frame 71 is interlocked and moved back and forth. Since it rotates, the ground contact height of the gauge wheel 73 can be changed in conjunction with the vertical position of the right drive wheel 84R, the adjustment work can be easily performed, and the grooving stalk and leaf raising device 69 and the vertical raising device can be achieved. Since the raising height of the 63 foliage part is automatically adjusted to an appropriate position, the drawing and conveying work is efficiently performed.
On the other hand, as shown in FIG. 2, a left output shaft 78L is slidable in the left-right direction at the left and right other ends of the second branch transmission case 6a on the left and right sides of the machine body, and is attached to the rear portion of the second branch transmission case 6a. A plate 88 is provided, and the mounting plate 88 and the drive case 4 support the fixed side 89 a of the tread adjusting cylinder 89. Then, a travel drive sprocket 79 is mounted on the left output shaft 78L, and the travel drive sprocket 79 is installed in the upper part of the left travel transmission case 80L. Further, the left traveling transmission case 80L is in a rear-upward inclined posture, and a traveling driven sprocket 81 is rotatably mounted on the lower end side of the left traveling transmission case 80L located on the front side of the aircraft, and the traveling driving sprocket 79 and the traveling driven sprocket 81 are provided. The travel transmission chain 82 is wound around. Further, an axle 83 is mounted on the traveling driven sprocket 81, and left driving wheels 84L are provided on the axle 83.
When the moving side 89b of the tread adjusting cylinder 89 is connected to the upper end portion of the left traveling transmission case 80L, and the tread adjusting cylinder 89 is extended, the moving portion 89b and the left transmission shaft 78L move in the left and right directions. The left traveling transmission case 80L is separated from the main frame 1, and the right and left distance between the right driving wheel 84R and the left driving wheel 84L is increased. On the other hand, when the tread adjusting cylinder 89 is contracted, the moving portion 89b and the left transmission shaft 78L move in the left-right direction so that the left traveling transmission case 80L approaches the main frame 1, and the right drive wheel 84R and the left The left and right intervals of the drive wheels 84L are configured to be narrow.
With the above configuration, the left and right drive wheels 84L can be changed in left and right positions according to the left and right width of the rod. Therefore, it is necessary to move the left drive wheels 84L on the rod when working in a field with different left and right widths of the rod. The onion can be extracted and harvested in a stable posture, improving work efficiency.
Further, when loading the airframe onto a loading platform such as a light truck or storing it in a warehouse or the like, the left-right distance between the left and right drive wheels 84L, 84R can be reduced to the limit, thereby reducing the left-right width of the airframe. As a result, loading and storage of the aircraft can be performed efficiently.
In addition, if the wheel cover 84a which prevents the stem and leaf part of the onion hanging from the adjacent strip from being entangled with the spoke or the axle 83 is detachably provided on the inner peripheral portion of the right drive wheel 84R, the stem and leaf part is entangled. It is prevented that the onion of the adjacent strip is pulled out and cannot be drawn and harvested by the pulling / conveying device 20, and the work efficiency is improved.
FIG. 7 (a) is a conventional L-shaped soyler 200 used when pulling and harvesting onions while laying the multi-film, and is attached to the heel end, that is, the left and right sides of the machine body, and the blade part 200a is attached. It is made to enter the cage from below the multi-film, and the soil is unraveled by applying vibration from the left and right sides of the onion and from below. However, when this L-shaped soiler is used, it is necessary to remove the left and right digging soilers 29, 29 and then attach them, which requires a lot of time and labor for the replacement work.
In order to solve the above problem, as shown in FIGS. 1, 3, 4 and 7B to 7D, when performing a pulling harvesting operation in a field laid with a multi-film, first, the left and right sides of the aircraft Remove the soy 29. Then, a hollow extension sora blade 91 is mounted on the blade portion of the excavated soiler 29 on the left and right sides of the machine body, and fixed with fixing members such as bolts and nuts. The left and right lengths of the extension soda blade 91 are set to the same length as the left and right lengths of the blade portion 200a of the conventional L-shaped soiler 200.
By adopting the above-described configuration, it is possible to cope with the drawing and harvesting work at the time of laying the multi-film without removing the left and right side excavating soiler 29, so that the time and labor required for the replacement work are shortened.
With the above configuration, the soil around the onion can be solved while avoiding the multi-film. However, if the left and right ends of the multi-film are firmly held by the soil forming the ridges, the onion may not be lifted sufficiently, which may hinder extraction or cutting of the foliage. Further, when collecting onions, it is necessary to remove the multi-film, but if it is pressed by the soil, the labor required for the removal work increases.
In order to solve the above problem, as shown in FIGS. 7B to 7D, the left and right other side digging soilers 29 are digged on the left and right sides with the blade 29d facing in the left and right direction. It is good to set it as the structure with which it raises to the soy 29.
With the above configuration, the blade 29d of the left and right other excavating soiler 29 is the edge of the ridge and the soil near the end of the multifilm can be broken, so that the soil holding the multifilm can be broken. Since the multi-film can be easily removed, the work efficiency is improved and the labor of the operator is reduced.
Further, as shown in FIGS. 3, 4, and 7 (b) to 7 (d), a blade that enters the blade portion 29 d of the left and right other side sowing blade 29 d into the soil below the extended solu blade 91. A multi-peeling solitary 92 having a guide portion bent in a circular arc shape from the connecting portion to the rear end portion, with a plate-like connecting portion on the rear side of the blade portion. Also good.
However, in the case where the onion is planted over 4 rows and is harvested first, if the multi-film is lifted, the unharvested onion may be lifted together and may not be clamped by the pulling and conveying device 20. is there.
Since the multi-film can be guided rearward and upward by the above configuration, the multi-film is prevented from becoming a resistance when the drawing / conveying device 20 pulls out the onion from the soil, and the onion may remain in the soil. There is no need for the operator to collect the remaining onion, and the labor of the operator is reduced.
Moreover, since it is possible to prevent the unharvested onion from being lifted together with the multi-film, the onion can be reliably pulled out and harvested by the pulling / conveying device 20, and the work efficiency is improved.
Note that if the left and right digging soils 29, 29 are formed on both front and rear blades 29d, there is no distinction between the left and right, so that when the two digging soilers 29, 29 are removed during maintenance, etc. The work efficiency is improved.
In addition, when the assembly direction is determined and the blade part 29d on the side used as the front wears out, the right and left excavating soilers 29, 29 are reversed and attached to the opposite side, and immediately enter the soil. Since the action can be obtained, the durability of the left and right digging soilers 29 and 29 is improved.
In addition, the foliage cutting device 54 provided in the onion harvester of this case shall be mutually interchangeable with the 2nd foliage cutting device 107 and the 3rd foliage cutting device 122 which are comprised as follows.
As shown in FIGS. 8 to 12, a pivot arm 100 that protrudes toward the front side of the machine body is provided on one side of the support frame 42 on the left and right sides of the machine body. A long U-shaped cutting support frame 101 in plan view is provided. A reciprocating cutter 102 that swings left and right is provided at the front portion of the cutting support frame 101 to cut the stems and leaves of the plurality of onions. The cutting drive motor 103 and the driving force of the cutting drive motor 103 are supplied to the reciprocating cutter 102. A crank arm 104 that is transmitted to the right side of the machine body is disposed on the left and right sides of the front end of the rotating arm 100. The left and right other side ends of the reciprocating cutter 102 are arranged at substantially the same position as the left and right other side ends of the longitudinal pulling device 63.
Further, a plurality of roller support plates 105, 105, 105 are provided at a predetermined interval at the rear portion of the cutting support frame 101, and a field scene or a multi-film is provided at a front end portion of the plurality of wheel support plates 105, 105, 105. A foliage cutting device 107 is configured by providing a plurality of grounding rollers 106, 106, 106 in contact with the surface so as to freely rotate. When the plurality of grounding rollers 106, 106, 106 come into contact with the farm scene, the cutting height of the stem and leaf portion of the reciprocating cutter 102 is automatically changed according to the unevenness of the farm field, thereby enabling floating.
It should be noted that the mounting intervals of the plurality of roller support plates 105, 105, 105 that respectively support the plurality of grounded rollers 106, 106, 106 to the cutting support frame 101 are the plurality of vertical pulls that constitute the vertical pulling device 63. If the distance between the left and right belts 62, 62, 62 is substantially the same, the plurality of grounding rollers 106, 106, 106 can reliably pass between the planting strips between the onions, so The rollers 106, 106, 106 are prevented from coming into contact with the onion and the onion is prevented from being damaged, the commercial value of the onion is improved, and the foliage cutting height of the second foliage cutting device 107 does not change unnecessarily. Therefore, the cutting position of the foliage becomes appropriate.
In addition, since the multi-film can be held down from both the left and right sides of the onion to be harvested, a space portion is secured between the multi-film and the lying foliage and the rug 62a. The device 20 securely holds and pulls out the foliage part, so that it is difficult for the onion to be left behind, and the time and labor required for the work of harvesting the left over onion are reduced.
Further, a plurality of mounting holes 105a in which the grounding wheels 106, 106, 106 are mounted are formed in the wheel support plates 105, 105, 105 in the vertical direction, and the grounding wheels 106, 106, It is set as the structure which can change the cutting height of a foliage part by changing the attachment hole 105a ... which attaches 106. FIG.
Under the crank arm 104, the driving force from the cutting drive motor 103 is received and the foliage is rotated in the direction in which the foliage is conveyed to the reciprocating cutter 102 (clockwise in plan view). A foliage guide disk 108 formed at every interval is provided. The foliage guide disk 108 has a lifting action area on the front side of the machine body for raising the foliage part positioned below the reciprocating cutter 102, and the rear side of the machine body from the guiding action area that guides the raised foliage part to the reciprocating cutter 102. It is arranged in a rearwardly rising inclination position located above the cutter 102.
With the above configuration, the cutting drive motor 103 and the crank arm 104 are provided at the left and right ends of the cutting support frame 101 so that the cutting drive motor 103 and the crank arm 104 are caught on the foliage of the adjacent onion. Therefore, it is possible to prevent the onion of adjacent strips from being caused and the drawing and conveying device 20 from being unable to extract and harvest, thereby reducing the time and labor required for the work of extracting the onion that is left behind.
Further, since the foliage is prevented from being entangled with the cutting drive motor 103 and the crank arm 104 and stopped, the foliage is cut reliably and the time required for the removal of the foliage after the harvesting operation The labor can be reduced and the onion to be pulled out can be prevented from lifting the multi-film, so that the multi-film can be collected easily, and the drawing / conveying device 20 stops the roll of the multi-film. Is prevented.
The cutting support frame 101 is provided with a plurality of wheel support plates 105, 105, 105, and ground contact wheels 106, 106, 106 are provided on the wheel support plates 105, 105, 105, respectively. Since the second foliage cutting device 107 moves in the vertical direction by rotating the pivot arm according to the unevenness, the cutting height of the foliage part is automatically changed, so the cutting position of the foliage part is too high and the onion The edible portion of the edible portion is prevented from remaining, and the time and labor required for the work of removing the unnecessary shoot and leaf portion are reduced.
In addition, since the cutting position of the foliage portion is too low and the edible portion of the onion can be prevented from being cut, it is possible to prevent the edible portion of the onion from being damaged and reducing the commercial value.
Further, by forming a plurality of mounting holes 105a in the vertical direction on the wheel support plates 105, 105, 105, the vertical position of the grounded wheels 106, 106, 106 can be changed according to the working conditions. Therefore, the cutting height of the foliage is automatically adjusted to an appropriate height, and the cutting accuracy of the foliage is improved.
Further, below the crank arm 104, a foliage guide disk 108 that rotates toward the reciprocating cutter 102 by receiving a driving force from the cutting drive motor 103 is provided, and an outer periphery of the foliage guide disk 108 is provided at equal intervals. By forming the concavo-convex portion, the leaf and leaf portion of the onion in contact with the leaf and leaf portion guide disk 108 can be guided to the reciprocating cutter 102, so that the leaf and leaf portion escapes from the reciprocating cutter 102 and remains without being cut. Is prevented, and the time and labor required to remove the foliage are reduced.
In addition, since the foliage portion can be prevented from being held and conveyed by the pulling and conveying device 20 without being cut, it is possible to prevent the onion from pushing up the multi-film and peeling it off the field scene, and the multi-film recovery operation is efficient. In addition, it is possible to prevent the drawing / conveying device 20 from taking up and stopping the multi-film, thereby improving the work efficiency.
Then, the foliage guide disk 108 is arranged such that the foliage lifting area is located below the reciprocating cutter 102, and the rear side of the fuselage is above the reciprocating cutter 102 from the guiding action area that guides the raised foliage to the reciprocating cutter 102. , Located in the back-tilting posture, it is possible to pull up the foliage lying in the field and reliably guide it to the cutting action part of the reciprocating cutter 102. The frequency of occurrence is reduced, and the work efficiency can be improved, and the time and labor required for removing the foliage can be reduced.
As shown in FIG. 13, the left and right other side ends of the cutting support frame 101 are extended, and a second cutting support arm 109 is provided from the extended portion toward the front side of the body, so that the reciprocating cutter 102 has a horizontal width. Is composed of the left and right reciprocating cutters 102L and 102R. The right reciprocating cutter 102R is provided at the front end portion of the cutting support arm 101 together with the cutting drive motor 103 and the crank arm 104, and the left reciprocating cutter 102L is provided at the front end portion of the second cutting support arm 103. And the crank arm 104.
Further, the forage guide disk 108 that rotates counterclockwise by obtaining a driving force from the left cutting drive motor 103 is positioned below the left reciprocating cutter 102L in the lifting area on the front side of the machine body for raising the stem and leaves. The raised foliage portion is arranged in a rear-upward inclined posture in which the rear side of the machine body is positioned above the left-side reciprocating cutter 102L from the guide action area for guiding the left-side reciprocating cutter 102L.
If the left and right of the left and right reciprocating cutters 102L and 102R are connected by a reinforcing plate 102a, the posture of the reciprocating cutters 102L and 102R is prevented from being changed by vibrations and the strength is improved. Furthermore, if a fixed contact blade 102b is provided at the front end of the reinforcing plate 102a, the foliage moved between the left and right of the left and right reciprocating cutters 102L, 102R can be cut. The generation of a residue is prevented.
With the above-described configuration, the stem and leaf portion of the onion lying in the field on the left and right sides of the aircraft can be guided to the cutting action portion of the left reciprocating cutter 102L by providing the stem and leaf guide disks on the left and right sides of the aircraft. Therefore, the frequency of occurrence of mistakes in cutting of the foliage is further reduced, and the work efficiency is improved and the time and labor required for the removal of the foliage are reduced.
In addition, the cutting drive motors 103 and 103 are provided on both the left and right sides, respectively, and the left and right reciprocating cutters 102L and 102R can be driven separately. It is prevented from being left uncut, the time and labor required for removing the foliage are reduced, the multi-film is prevented from being peeled off, and the work efficiency is improved.
Next, the third foliage cutting device will be described.
As shown in FIGS. 14 to 17, a cutting frame 110 that is long in the left-right direction is provided at the lower part of the front end of the pivot arm 100. A drive cutting sprocket 112 that rotates upon receiving a driving force is provided. Further, a driven cutting sprocket 113 is rotatably provided on the lower left and right other sides of the cutting frame 110, and the cutting chain 114 is wound endlessly across the driven cutting sprocket 113 and the driving cutting sprocket 112. A cutting chain saw 117 is formed on the outer peripheral portion of the cutting chain 114 by providing cutting blades 115 at regular intervals. And the fixed cutting blade 116 ... is provided in the lower part of the front-and-rear end part of the said cutting frame 110 for every equal interval, and it is set as the structure which nips a foliage part with the cutting blade 115 ... and the fixed cutting blade 116 ....
If the driving cutting sprocket 112 and the driven cutting sprocket 113 have a shape in which cutting blade portions are provided at equal intervals on the outer peripheral edge portion, even if the cutting blade 115 ... and the fixed cutting blade 116 ... fails to pinch the foliage portion, Since the foliage portion can be sandwiched between the drive cutting sprocket 112 and the driven cutting sprocket 113 and the cutting chain 114, it is prevented that the pulling and conveying device 20 pulls out the onion and lifts the multi-film without cutting the foliage portion. The
Further, a plurality of wheel support plates 118, 118, 118 having a plurality of mounting holes 118a in the vertical direction are provided in the winding region of the cutting chain 114 and below the cutting frame 110, respectively. A plurality of grounding wheels 119, 119, 119 are provided on the wheel support plates 118, 18, 118, respectively, so that they can be floated freely.
A plurality of guard bodies 120, 120, 120 are provided on the upper surface of the cutting frame 110 so as to protrude forward from the cutting chainsaw 117 and suppress the multi-film. The plurality of guard bodies 120, 120, 120 are attached to the upper surface of the cutting frame 110, protrude forward from the front end portion of the cutting frame 110, and forward from the front end portions of the cutting blade 115... And the fixed cutting blade 116. The shape is bent at the position where it protrudes downward, and the end is positioned below the cutting frame 110.
The arrangement intervals of the plurality of roller support plates 118, 18, 118 and the plurality of guard bodies 120, 120, 120 are set to a plurality of vertical pulling belts 62, 62, 62 constituting the vertical pulling device 63. Since the plurality of grounding rollers 119, 119, 119 can surely pass between the planting strips between the onions, the plurality of grounding rollers 119, 119, 119 The onion is prevented from being damaged by contact with the onion, and the commercial value of the onion is improved, and the foliage cutting height of the third foliage cutting device 122 does not change unnecessarily. Become appropriate.
In addition, since the multi-film can be held down from both the left and right sides of the onion to be harvested, a space portion is secured between the multi-film and the lying foliage and the rug 62a. The device 20 securely holds and pulls out the foliage part, so that it is difficult for the onion to be left behind, and the time and labor required for the work of harvesting the left over onion are reduced.
A leaf cutting guide guide 121 that bends toward the rear side of the body as it goes toward the end side is provided at the front end of the upper surface of the cutting frame 110 and at the left and right side ends of the body. A device 122 is configured.
With the above configuration, a plurality of cutting blades 115 provided on the outer peripheral portion of the cutting chain 114 by cutting the foliage portion with a cutting chain saw 117 that rotates in a predetermined direction, from the left and right sides of the body to the left and right sides of the body. Therefore, the foliage is discharged into the furrow groove, so that the foliage does not cover the onion discharged to the field scene for drying in the sun, and the onion is reliably dried.
In addition, when collecting the onion discharged to the field, the foliage is not collected together, so it is not necessary to select and remove the foliage from the collected onion, improving work efficiency and improving labor efficiency. Time is reduced.
Furthermore, since it is possible to prevent the cut leaves from being left on the multi-film, it is not necessary to remove the foliage from the multi-film before the multi-film is peeled off and collected, thereby improving work efficiency.
Further, by providing a leaf guide guide 121 that bends toward the rear side of the machine body toward the end side at the front end of the upper surface of the cutting frame and at the left and right sides of the machine body, the cutting chain saw 117 is cut. After that, the foliage part conveyed toward the left and right sides of the machine body can be guided and discharged to the ridge groove, so that the foliage part continues to be carried to the cutting chainsaw 117 and obstructs the cutting operation of other foliage parts. This prevents the foliage cutting accuracy.
In addition, since the discharged foliage is reliably guided to the trough, the foliage is prevented from falling on the onion pulled up from the soil or on the multi-film, and the onion is efficiently dried. In addition to being able to do so, the multi-film recovery work efficiency is improved.
Then, by providing fixed cutting blades 116 at regular intervals on the lower surface of the cutting frame 110 and at the outer periphery, a plurality of cutting blades 115 and fixed cutting blades 116 that move with the rotational movement of the cutting chain 114 are used. Since the foliage portion can be cut off, even if the foliage portion is thick, the foliage portion can be reliably cut, and the time and labor for removing the foliage portion after the harvesting operation are reduced.
In addition, the foliage portion is not cut and the pulling and conveying device 20 prevents the onion from being lifted too much and the multifilm is lifted and peeled off, so that the multifilm recovery work efficiency is improved and the multifilm is caught. This prevents the pulling / conveying device 20 from stopping.
Further, by providing a plurality of grounding wheels 119, 119, 119 at the lower part of the cutting frame 110, when the plurality of grounding wheels 119, 119, 119 pass through the unevenness of the field scene, the rotating arm 110 rotates up and down. Then, the third foliage cutting device 122 moves up and down, and the cutting height of the foliage part is automatically changed. Therefore, the cutting position of the foliage part is too high, and the foliage part remains in the edible part of the onion. This reduces the time and labor required to remove this unnecessary foliage.
In addition, since the cutting position of the foliage portion is too low and the edible portion of the onion can be prevented from being cut, it is possible to prevent the edible portion of the onion from being damaged and reducing the commercial value.
Further, by forming a plurality of mounting holes 118a in the vertical direction on the wheel support plates 118, 118, 118, the vertical positions of the grounded wheels 119, 119, 119 can be changed according to the working conditions. Therefore, the cutting height of the foliage is automatically adjusted to an appropriate height, and the cutting accuracy of the foliage is improved.
Then, the upper surface of the cutting frame 110 also receives the base and protrudes toward the front side of the machine body, and is bent at the front side of the front ends of the cutting blades 115 and the fixed blades 116 to position the end portion below the cutting chainsaw 117. By providing a plurality of guard bodies 120, 120, 120, it is possible to prevent the onion and multi-film from coming into contact with the cutting chainsaw 117, thereby preventing the onion from being damaged and reducing the commercial value, This prevents the multi-film from being cut and torn and making the recovery operation difficult.
Moreover, since the guard bodies 120, 120, and 120 are in contact with the multi-film, the suppressed multi-film is hardly lifted, and is further prevented from being cut by the cutting chainsaw 117, and the multi-film collecting work efficiency is improved. .
Furthermore, since the rear side of the guard bodies 120, 120, 120 is open, the cut foliage portion is not easily caught, and it is possible to prevent the work from being performed while dragging the foliage portion.
As shown in FIG. 18, when the cutting blade 115 ... and the fixed cutting blade 116 ... are formed with a blade portion v2 on the side opposite to the rotation direction of the cutting chain 114, the blade portion v1 to be used first becomes Even if blades are spilled over a long period of time and cutting performance is lowered, if the cutting chain 114 and the cutting frame 110 are turned over, the unused blade portion v2 can be used.
With the above configuration, the cutting performance of the cutting blades 115 and the fixed cutting blades 116 can be maintained over a long period of time, so that the durability is greatly improved and the running cost of the harvester can be reduced.
The following configuration is further added to the third foliage cutting device 122.
A guard cover 123 is provided to cover the left and right sides and the rear part of the cutting frame 110 from below the cutting frame 110 to the vicinity of the field scene. A discharge port 123a for discharging the foliage carried by the cutting chainsaw 117 is formed on the side of the guard cover 123 on the left and right sides of the machine body.
This makes it easy for the operator to know where the third foliage cutting device 122 is located, so that the operator does not inadvertently approach the third foliage cutting device 122 and the safety of the work is improved. In addition, when not working, if a cover (not shown) that closes the front side of the third foliage cutting device 122 and the discharge port 123a is prepared, the cutting blade 115 ... and the fixed cutting blade 116 ... contact the periphery during movement. This prevents the contacted parts from being damaged and the cutting blades 115 and the fixed cutting blades 116 from being spilled.
The guard cover 123 is preferably made of a soft member so as to prevent the guard cover 123 from being damaged or breaking the multi film when it comes into contact with a farm scene or the multi film. If the plate is made of rubber or vinyl chloride, it can be easily attached / detached, but if it is made up of brushes made up of countless hairs, the resistance when coming into contact with the field scene or multi-film becomes even smaller. It is prevented from being torn. Furthermore, if it is a brush, leaf waste, sand, etc. deposited on the multi-film can be cleaned, and it can be collected in a state where no extra material is attached to the multi-film.
Further, since the lower part of the third foliage cutting device 122 is not covered by the guard cover 123, maintenance can be performed from the lower part of the third foliage cutting device 122. The work of disassembling and reassembling the 3 foliage cutting device 122 is not necessary, and the maintainability and work efficiency are improved.

２０ 引抜搬送装置
４６ 切断リンク機構（リンク機構）
４８ 切断駆動モータ（駆動アクチュエータ）
４９Ｌ 左の茎葉切断刃
４９Ｒ 右の茎葉切断刃
５０ 接地体（接地部材）
５４ 第１の茎葉切断装置（茎葉切断装置）
６３ 縦引起し装置（引起し装置）
１００ 回動アーム
１０１ 切断支持フレーム（支持フレーム）
１０２ レシプロカッタ（切断部材）
１０３ 切断駆動モータ（駆動アクチュエータ）
１０６ 接地転輪（接地部材）
１０７ 第２の茎葉切断装置（茎葉切断装置）
１０８ 茎葉部ガイドディスク（案内部材）
１１０ 切断フレーム
１１１ 切断駆動モータ（駆動アクチュエータ）
１１２ 駆動切断スプロケット（駆動回転体）
１１３ 従動切断スプロケット（従動回転体）
１１４ 切断チェーン（伝動無端帯）
１１５ 切断刃
１１６ 固定切断刃（固定刃）
１１７ 切断チェーンソー（回転切断装置）
１１９ 接地転輪（接地部材）
１２２ 第３の茎葉切断装置（茎葉切断装置）
１２３ ガードカバー（被覆部材）
１２３ａ 排出口 20 Pull-out conveying device 46 Cutting link mechanism (link mechanism)
48 Cutting drive motor (drive actuator)
49L Left foliage cutting blade 49R Right foliage cutting blade 50 Grounding body (grounding member)
54 First foliage cutting device (foliage cutting device)
63 Vertical pulling device (lifting device)
100 Rotating arm 101 Cutting support frame (support frame)
102 Reciprocating cutter (cutting member)
103 Cutting drive motor (drive actuator)
106 Grounding wheel (grounding member)
107 Second forage cutting device (forage cutting device)
108 Forage guide disk (guide member)
110 cutting frame 111 cutting drive motor (drive actuator)
112 Drive cutting sprocket (drive rotor)
113 Driven cutting sprocket (driven rotor)
114 Cutting chain (powerless endless belt)
115 cutting blade 116 fixed cutting blade (fixed blade)
117 Cutting chainsaw (rotary cutting device)
119 Grounding wheel (grounding member)
122 Third foliage cutting device (foliage cutting device)
123 Guard cover (covering member)
123a outlet

Claims (8)

機体の前側に倒伏した作物の茎葉部を引き起こす引起し装置（６３）を設け、該引起し装置（６３）が引き起こした茎葉部を挟持して圃場から作物を引き抜く引抜搬送装置（２０）を設け、
該引抜搬送装置（２０）の搬送始端側の下方に引き抜かれた作物の茎葉部を切断する茎葉切断装置（５４，１０７，１２２）を設け、該茎葉切断装置（５４，１０７，１２２）の下部に圃場面に接地する接地部材（５０，１０６，１１９）を設け、該接地部材（５０，１０６，１１９）の接地に追従して前記茎葉切断装置（５４，１０７，１２２）が上下に回動する構成としたことを特徴とする農作物収穫機。 A pulling device (63) is provided on the front side of the machine body for causing the fallen leaves of the crop to fall, and a pulling and conveying device (20) for pulling out the crop from the field by holding the stems and leaves caused by the pulling device (63) is provided. ,
A foliage cutting device (54, 107, 122) that cuts the foliage portion of the crop pulled out below the conveyance start end side of the pulling and conveying device (20) is provided, and a lower portion of the foliage cutting device (54, 107, 122) Is provided with a grounding member (50, 106, 119) for grounding on the field scene, and the foliage cutting device (54, 107, 122) is rotated up and down following the grounding of the grounding member (50, 106, 119). A crop harvesting machine characterized in that it is configured to perform. 前記引抜搬送装置（２０）の下方にリンク機構（４６）を上下回動自在に設け、該リンク機構（４６）に茎葉切断装置（５４）を設け、該茎葉切断装置（５４）に対して前記接地部材（５０）を回転自在且つ上下位置調節自在に設けたことを特徴とする請求項１記載の農作物収穫機。 A link mechanism (46) is provided below the pulling and conveying device (20) so as to be rotatable up and down, and a foliage cutting device (54) is provided on the link mechanism (46). The crop harvesting machine according to claim 1, wherein the grounding member (50) is provided so as to be rotatable and vertically adjustable. 前記リンク機構（４６）を左右一対設け、該左右のリンク機構（４６，４６）に左右の茎葉切断刃（４９Ｌ，４９Ｒ）を各々回転自在に設け、該左右の茎葉切断刃（４９Ｌ，４９Ｒ）のうち機体左右一側の茎葉切断刃（４９Ｒ）を機体左右他側の茎葉切断刃（４９Ｌ）よりも機体前側に設け、左右の茎葉切断刃（４９Ｌ，４９Ｒ）の外周縁部の一部を重ね合わせて配置し、
前記左右のリンク機構（４６，４６）の左右どちらか一方、あるいは左右両方の上部に左右の茎葉切断刃（４９Ｌ，４９Ｒ）を回転させる駆動アクチュエータ（４８）を設け、前記左右の茎葉切断刃（４９Ｌ，４９Ｒ）の回転軸の下部側に、前記接地部材（５０）を左右の茎葉切断刃（４９Ｌ，４９Ｒ）の回転とは独立して回転可能に各々設けたことを特徴とする請求項２記載の農作物収穫機。 The left and right foliage cutting blades (49L, 49R) are provided rotatably on the left and right link mechanisms (46, 46), respectively, and the left and right foliage cutting blades (49L, 49R). Among these, the foliage cutting blade (49R) on one side of the left and right sides of the aircraft is provided on the front side of the foliage cutting blade (49L) on the other side of the left and right sides of the aircraft, and a part of the outer peripheral edge of the left and right foliage cutting blades (49L, 49R) Overlay and place
A drive actuator (48) for rotating left and right foliage cutting blades (49L, 49R) is provided on either the left or right of the left and right link mechanisms (46, 46), or on both upper left and right sides, and the left and right foliage cutting blades ( 49L, 49R), wherein the grounding member (50) is provided on the lower side of the rotation shaft of the left and right foliage cutting blades (49L, 49R) independently of the rotation of the left and right foliage cutting blades. The described crop harvesting machine. 前記引抜搬送装置（２０）の下方に回動アーム（１００）を上下回動自在に設け、該回動アーム（１００）に切断部材（１０２）を備える茎葉切断装置（１０７）を設け、該茎葉切断装置（１０７）の下部に接地部材（１０６）を設け、茎葉部を前記切断部材（１０２）に案内する案内部材（１０８）を前記茎葉切断装置（１０７）の機体左右一側端部に設けたことを特徴とする請求項１に記載の農作物収穫機。 A rotary arm (100) is provided below the pulling and conveying device (20) so as to be rotatable up and down, and a foliage cutting device (107) including a cutting member (102) is provided on the rotary arm (100). A grounding member (106) is provided at the lower part of the cutting device (107), and a guide member (108) for guiding the foliage portion to the cutting member (102) is provided at one end of the left and right sides of the foliage cutting device (107). The crop harvesting machine according to claim 1, wherein: 前記回動アーム（１００）の先端部に切断部材（１０２）を支持する支持フレーム（１０１）を設け、該支持フレーム（１０１）の機体左右一側端部に切断部材（１０２）と案内部材（１０８）を作動させる駆動アクチュエータ（１０３）を設け、該支持フレーム（１０１）に前記接地部材（１０６）を上下位置調節自在に設け、
前記案内部材（１０８）は、機体後側が前側よりも上位となる後上がり傾斜姿勢で配置したことを特徴とする請求項４に記載の農作物収穫機。 A support frame (101) for supporting the cutting member (102) is provided at the tip of the rotating arm (100), and the cutting member (102) and the guide member ( 108) is provided, and the grounding member (106) is provided on the support frame (101) so that the vertical position can be adjusted.
The crop harvesting machine according to claim 4, wherein the guide member (108) is arranged in a rear-upward inclined posture in which the rear side of the machine body is higher than the front side. 前記引抜搬送装置（２０）の下方に回動アーム（１００）を上下回動自在に設け、該回動アーム（１００）の前側に茎葉部を切断する茎葉切断装置（１２２）を設け、該茎葉切断装置（１２２）の下部に接地部材（１１９）を設け、
前記茎葉切断装置（１２２）の機体左右両側と機体後側を覆う被覆部材（１２３）を設け、該被覆部材（１２３）の機体左右一側に作物を排出する排出口（１２３ａ）を形成したことを特徴とする請求項１に記載の農作物収穫機。 A rotary arm (100) is provided below the pulling and conveying device (20) so as to be rotatable up and down, and a foliage cutting device (122) for cutting a foliage portion is provided on the front side of the rotary arm (100). A grounding member (119) is provided below the cutting device (122),
A covering member (123) covering the left and right sides of the body and the rear side of the body of the foliage cutting device (122) is provided, and a discharge port (123a) for discharging crops is formed on the left and right sides of the body of the covering member (123). The crop harvester according to claim 1. 前記回動アーム（１００）の前端下部に切断フレーム（１１０）を設け、該切断フレーム（１１０）に複数の切断刃（１１５）を備える回転切断装置（１１７）と該回転切断装置（１１７）を作動させる駆動アクチュエータ（１１１）を設け、該切断フレーム（１１０）の外周縁部に複数の固定刃（１１６）を設け、前記回転切断装置（１１７）の下方に接地部材（１１９）を上下位置調節自在に設け、
前記駆動アクチュエータ（１１１）を作動させると、前記回転切断装置（１１７）が切断した茎葉部を前記排出口（１２３ａ）を形成した機体左右一側に搬送する方向に回転する構成としたことを特徴とする請求項６に記載の農作物収穫機。 A rotary cutting device (117) provided with a cutting frame (110) at a lower front end of the rotating arm (100), and a plurality of cutting blades (115) on the cutting frame (110), and the rotary cutting device (117). A drive actuator (111) to be operated is provided, a plurality of fixed blades (116) are provided on the outer peripheral edge of the cutting frame (110), and the grounding member (119) is adjusted in the vertical position below the rotary cutting device (117). Set up freely,
When the drive actuator (111) is operated, the foliage cut by the rotary cutting device (117) rotates in a direction to be conveyed to the left and right sides of the machine body where the discharge port (123a) is formed. The crop harvesting machine according to claim 6. 前記回転切断装置（１１７）は、前記駆動アクチュエータ（１１１）が作動すると回転する駆動回転体（１１２）を切断フレーム（１１０）の機体左右一側に設け、該切断フレーム（１１０）の機体左右他側に従動回転体（１１３）を回転自在に設け、該駆動回転体（１１２）と従動回転体（１１３）に亘って伝動無端帯（１１４）を巻回し、該伝動無端帯（１１４）に前記複数の切断刃（１１５）を設けて構成すると共に、
前記駆動回転体（１１２）と従動回転体（１１３）は、外周縁部に茎葉切断突起を形成したことを特徴とする請求項７に記載の農作物収穫機。 The rotary cutting device (117) is provided with a driving rotary body (112) that rotates when the driving actuator (111) is actuated on one side of the cutting frame (110) on the left and right sides of the cutting frame (110). A driven rotating body (113) is rotatably provided, a transmission endless belt (114) is wound around the driving rotating body (112) and the driven rotating body (113), and the transmission endless belt (114) is wound around the transmission endless belt (114). While providing a plurality of cutting blades (115),
8. The crop harvesting machine according to claim 7, wherein the driving rotating body (112) and the driven rotating body (113) are formed with stem and leaf cutting protrusions on an outer peripheral edge portion.
JP2012190339A 2012-08-30 2012-08-30 Crop harvester Pending JP2014045702A (en)

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2015213449A (en) * 2014-05-08 2015-12-03 株式会社クボタ Root crop harvester
CN112219546A (en) * 2020-11-13 2021-01-15 塔里木大学 Cotton stalk is to going to be played and is pulled out and integrative results mechanism is retrieved to incomplete membrane
JP2021040601A (en) * 2019-09-13 2021-03-18 ヤンマーパワーテクノロジー株式会社 Bulb vegetable harvester
WO2021049412A1 (en) * 2019-09-13 2021-03-18 ヤンマーパワーテクノロジー株式会社 Bulb vegetable harvester
CN114568120A (en) * 2022-04-06 2022-06-03 铁建重工新疆有限公司 Tomato harvester header of adjustable width of cutting

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2015213449A (en) * 2014-05-08 2015-12-03 株式会社クボタ Root crop harvester
JP2021040601A (en) * 2019-09-13 2021-03-18 ヤンマーパワーテクノロジー株式会社 Bulb vegetable harvester
WO2021049412A1 (en) * 2019-09-13 2021-03-18 ヤンマーパワーテクノロジー株式会社 Bulb vegetable harvester
JP7281375B2 (en) 2019-09-13 2023-05-25 ヤンマーパワーテクノロジー株式会社 bulb vegetable harvester
CN112219546A (en) * 2020-11-13 2021-01-15 塔里木大学 Cotton stalk is to going to be played and is pulled out and integrative results mechanism is retrieved to incomplete membrane
CN112219546B (en) * 2020-11-13 2024-04-09 塔里木大学 Cotton stalk opposite pulling and residual film recycling integrated harvesting mechanism
CN114568120A (en) * 2022-04-06 2022-06-03 铁建重工新疆有限公司 Tomato harvester header of adjustable width of cutting

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