JP2012095599A

JP2012095599A - Farm-working machine

Info

Publication number: JP2012095599A
Application number: JP2010246198A
Authority: JP
Inventors: Toshiaki Ikeda; 俊朗池田; Masahito Kuroda; 将仁黒田; Kazutaka Kobayashi; 一貴小林; Toru Ebara; 徹江原; Satoshi Kuwahara; 諭桑原
Original assignee: Matsuyama Plow Manufacturing Co Ltd
Current assignee: Matsuyama Plow Manufacturing Co Ltd
Priority date: 2010-11-02
Filing date: 2010-11-02
Publication date: 2012-05-24
Anticipated expiration: 2030-11-02
Also published as: JP5890958B2

Abstract

PROBLEM TO BE SOLVED: To provide a farm-working machine enabling proper tilling and land-leveling work to be conducted.SOLUTION: The farm-working machine 1 includes: a central operative section 2; and a transversely extending-operative section 3; wherein the central operative section 2 includes: a central machine body 11; a central tilling body 12; and a central land-leveling body; and the extending-operative section 3 includes: an extending machine body 31; an extending tilling body 32; and an extending land-leveling body. In this machine 1, both left and right sides of the central machine body 11 are respectively furnished with soil-moving-restrictive bodies 61 to restrict soil scattered due to the turning of a tilling tine 23 against moving onto the extending-operative section 3 side and restrict soil scattered due to the turning of a tilling tine 43 against moving onto the central operative section 2 side.

Description

本発明は、適切な耕耘整地作業ができる農作業機に関するものである。 The present invention relates to an agricultural machine that can perform appropriate tillage work.

従来、例えば特許文献１に記載された農作業機が知られている。 Conventionally, for example, an agricultural machine described in Patent Document 1 is known.

この従来の農作業機は、走行車であるトラクタの後部に連結される作業部と、この作業部に設けられ折畳非作業状態および展開作業状態に選択的に切り換えられる延長作業部とを具備している。 This conventional agricultural working machine includes a working unit connected to the rear part of a tractor that is a traveling vehicle, and an extension working unit that is provided in the working unit and can be selectively switched between a folding non-working state and an unfolding working state. ing.

また、作業部は、機体と、この機体に回転可能に設けられ回転しながら耕耘作業をする耕耘体と、この耕耘体の後方で整地作業をする整地体とを備えている。同様に、延長作業部は、延長機体と、この延長機体に回転可能に設けられ回転しながら耕耘作業をする延長耕耘体と、この延長耕耘体の後方で整地作業をする延長整地体とを備えている。 The working unit includes a machine body, a tiller body that is rotatably provided on the machine body and performs a tilling work while rotating, and a leveling body that performs a ground leveling operation behind the tiller body. Similarly, the extension work unit includes an extension machine body, an extension farm body that is rotatably provided on the extension machine body and that performs the tilling work while rotating, and an extension leveling body that performs the leveling work behind the extension farm body. ing.

特開２０００−３４２００１号公報（図１、図４等）JP 2000-34001 A (FIGS. 1 and 4 etc.)

しかしながら、上記従来の農作業機では、耕耘体にて飛ばされた土が延長作業部側に移動するとともに、延長耕耘体にて飛ばされた土が作業部側に移動するため、圃場面に大きな凹凸が生じやすく、適切な耕耘整地作業ができないおそれがある。 However, in the above conventional farm work machine, the soil blown by the tillage body moves to the extension work section side, and the soil blown by the extension tillage body moves to the work section side. There is a risk that proper tillage work will not be possible.

本発明は、このような点に鑑みなされたもので、適切な耕耘整地作業ができる農作業機を提供することを目的とする。 This invention is made | formed in view of such a point, and it aims at providing the agricultural machine which can perform suitable tillage work.

請求項１記載の農作業機は、走行車に連結される作業部と、この作業部に設けられ、折畳非作業状態および展開作業状態に選択的に切り換えられる延長作業部とを具備し、前記作業部は、機体と、この機体に回転可能に設けられ、回転しながら耕耘作業をする耕耘体と、この耕耘体の後方で整地作業をする整地体とを備え、前記延長作業部は、延長機体と、この延長機体に回転可能に設けられ、回転しながら耕耘作業をする延長耕耘体と、この延長耕耘体の後方で整地作業をする延長整地体とを備え、前記機体および前記延長機体の少なくとも一方には、前記耕耘体にて飛ばされた土が前記延長作業部側に移動することを規制しかつ前記延長耕耘体にて飛ばされた土が前記作業部側に移動することを規制する土移動規制体が設けられているものである。 The agricultural working machine according to claim 1, comprising a working unit connected to the traveling vehicle, and an extension working unit provided in the working unit and selectively switched between a folding non-working state and a deployment working state, The working unit includes a machine body, a plowing body that is rotatably provided on the machine body and performs a plowing operation while rotating, and a leveling body that performs a leveling work behind the plowing body, and the extension working unit is an extension A machine body, an extended tiller body that is rotatably provided on the extension machine body and that performs a tilling operation while rotating, and an extension ground leveling body that performs a ground leveling operation behind the extension farm body, the machine body and the extension machine body At least one side restricts movement of the soil blown by the tillage body to the extended working part side and restriction of movement of the soil blown by the extended tillage body to the working part side A soil movement regulation body is also provided It is.

請求項２記載の農作業機は、請求項１記載の農作業機において、土移動規制体の下端側は、耕耘整地作業時に圃場の土中を移動するものである。 The farm machine according to claim 2 is the farm machine according to claim 1, wherein the lower end side of the soil movement regulating body moves in the soil of the farm field during the tillage work.

請求項３記載の農作業機は、請求項１または２記載の農作業機において、整地体および延長整地体の少なくとも一方には、耕耘体にて飛ばされた土が延長作業部側に移動することを規制しかつ延長耕耘体にて飛ばされた土が作業部側に移動することを規制する整地側土移動規制体が設けられ、前記整地側土移動規制体と土移動規制体とは、耕耘整地作業時に側面視で常に互いに部分的に重なり合うように位置するものである。 The farm machine according to claim 3 is the farm machine according to claim 1 or 2, wherein at least one of the leveling body and the extended leveling body, the soil blown by the tillage body moves to the extension work part side. There is provided a leveling-side soil movement regulating body that regulates and moves the soil blown by the extended tillage body to the working part side, and the leveling-side soil movement regulating body and the soil movement regulating body are the tillage leveling land. They are positioned so as to always partially overlap each other when viewed from the side.

本発明によれば、機体および延長機体の少なくとも一方には、耕耘体にて飛ばされた土が延長作業部側に移動することを規制しかつ延長耕耘体にて飛ばされた土が作業部側に移動することを規制する土移動規制体が設けられているため、圃場面に大きな凹凸が生じる不具合を防止でき、適切な耕耘整地作業ができる。 According to the present invention, at least one of the machine body and the extension machine body is configured such that the soil blown by the tillage body is restricted from moving to the extension work part side, and the soil blown by the extension farm body is the work part side. Since the soil movement restricting body that restricts the movement of the soil is provided, it is possible to prevent a problem that a large unevenness is caused in the field scene, and an appropriate tillage work can be performed.

本発明の一実施の形態に係る農作業機を示す図である。It is a figure which shows the agricultural working machine which concerns on one embodiment of this invention. （ａ）が延長チェーンケース側の図（ａ矢視図）で、（ｂ）が中央ブラケット側の図（ｂ矢視図）で、（ｃ）が延長ブラケット側の図（ｃ矢視図）である。(A) is an extension chain case side view (a arrow view), (b) is a central bracket side view (b arrow view), and (c) is an extension bracket side view (c arrow view). It is. 同上農作業機の中央作業部の側面図である。It is a side view of the center working part of an agricultural working machine same as the above. 同上農作業機の中央作業部の作業時の側面図である。It is a side view at the time of work of the central working part of the agricultural working machine same as the above. 同上農作業機の展開平面図である。It is an expansion | deployment top view of an agricultural working machine same as the above. 同上農作業機の耕耘部に動力を伝える伝動手段を示す図である。It is a figure which shows the transmission means which transmits motive power to the tilling part of a farm working machine same as the above. 同上農作業機の作用説明図である。It is operation | movement explanatory drawing of a farm work machine same as the above. 本発明の他の実施の形態に係る農作業機を示す図である。It is a figure which shows the agricultural machine concerning other embodiment of this invention. 本発明のさらに他の実施の形態に係る農作業機を示す図である。It is a figure which shows the agricultural working machine which concerns on other embodiment of this invention.

本発明の一実施の形態について図１ないし図７を参照して説明する。 An embodiment of the present invention will be described with reference to FIGS.

図中の１は農作業機で、この農作業機１は、例えば走行車であるトラクタ（図示せず）の後部に連結されて使用される耕耘整地作業機（ロータリー）である。つまり、農作業機１は、トラクタの後部に連結された状態で、トラクタの走行により進行方向である前方（図４では左方向）に向かって圃場上を移動しながら耕耘整地作業（農作業）をする例えば３分割構造の折畳式作業機である。 In the figure, reference numeral 1 denotes an agricultural machine. The agricultural machine 1 is a tillage level working machine (rotary) used by being connected to the rear part of a tractor (not shown) which is a traveling vehicle, for example. That is, the farm work machine 1 is connected to the rear part of the tractor and performs the tilling work (farm work) while moving on the farm field in the forward direction (left direction in FIG. 4) as the traveling direction by the traveling of the tractor. For example, it is a three-fold folding work machine.

農作業機１は、トラクタの後部の３点リンク部（作業機昇降装置）に連結され、トラクタ側から動力を受けて耕耘整地作業をする左右方向長手状の作業部である中央作業部２を備えている。 The farm work machine 1 includes a central work part 2 that is connected to a three-point link part (work machine lifting device) at the rear part of the tractor, and is a work part having a longitudinal direction that receives power from the tractor side and performs tilling work. ing.

また、農作業機１は、中央作業部２の左右方向両端部に回動支点である折畳用軸４を中心として上下方向に回動可能に設けられ、その回動により折畳非作業状態および展開作業状態に選択的に切り換えられ、展開作業状態時には中央作業部２側から動力を受けて耕耘整地作業をする左右方向長手状の左右の延長作業部３を備えている。 The agricultural working machine 1 is provided at both ends in the left and right direction of the central working unit 2 so as to be pivotable in the vertical direction about the folding shaft 4 that is a pivotal fulcrum. It is selectively switched to the unfolding work state, and is provided with left and right extending work parts 3 having a left-right direction that receives power from the central work part 2 side and performs the tilling work in the unfolding work state.

各延長作業部３は、農作業機１の中央部に位置する中央作業部２に対して回動中心軸線Ａを中心として上下方向に回動可能であり、一方向（展開方向）への所定角度、例えば略１８０度の回動により中央作業部２の外側方に位置する展開作業状態となり、この展開作業状態に展開ロック手段５によって解除可能にロックされる。また、各延長作業部３は、一方向とは反対の他方向（折畳方向）への所定角度、例えば略１８０度の回動により中央作業部２の上方に位置する折畳非作業状態となり、この折畳非作業状態に折畳ロック手段（図示せず）によって解除可能にロックされる。 Each extension work part 3 can be rotated in the vertical direction about the rotation center axis A with respect to the central work part 2 located at the central part of the agricultural work machine 1, and a predetermined angle in one direction (deployment direction). For example, the unfolding operation state located on the outer side of the central working unit 2 is brought about by rotation of about 180 degrees, and the unfolding operation state is releasably locked by the unfolding lock means 5. In addition, each extension work part 3 is in a non-folding state in which the extension work part 3 is positioned above the central work part 2 by a predetermined angle in the other direction (folding direction) opposite to one direction (folding direction), for example, approximately 180 degrees. The folding lock means (not shown) is releasably locked in this folding non-working state.

なお、延長作業部３の状態を切り換える際における延長作業部３の回動角度は、例えば１５０度や９０度等でもよい。また、展開ロック手段５は、例えばロックピン６およびこのロックピン６と係合するフック７等にて構成されている。 Note that the rotation angle of the extension work unit 3 when the state of the extension work unit 3 is switched may be, for example, 150 degrees or 90 degrees. Further, the deployment lock means 5 is constituted by, for example, a lock pin 6 and a hook 7 engaged with the lock pin 6.

中央作業部２は、トラクタの後部の３点リンク部に連結される左右方向長手状の機体である中央機体11と、この中央機体11に回転可能に設けられトラクタ側から動力を受けて回転しながら耕耘作業をする耕耘体である中央耕耘体12と、中央機体11の耕耘カバー部である中央耕耘カバー部15の後端部に水平な左右方向の回動中心軸線Ｂを中心として上下方向に回動可能に設けられ中央耕耘体12の後方で整地作業をする整地体である中央整地体13とを備えている。 The central working unit 2 is a central body 11 that is a longitudinally long body connected to the three-point link part at the rear of the tractor, and is provided rotatably on the central body 11 and receives power from the tractor side and rotates. The center tillage body 12 that is a tilling body that performs tilling work and the rear end portion of the center tillage cover portion 15 that is the tillage cover portion of the central body 11 are vertically moved around a horizontal rotation center axis B that is horizontal. A central leveling body 13 which is a leveling body provided so as to be rotatable and performs leveling work behind the central tillage body 12 is provided.

中央機体11は、左右方向長手状で円筒状のフレームパイプ部16を有し、このフレームパイプ部16の左右方向中央部にはギアボックス部17が設けられ、このギアボックス部17から入力軸18が前方に向かって突出している。入力軸18は、トラクタのＰＴＯ軸（図示せず）に、ユニバーサルジョイントおよび伝動シャフトからなる伝動手段（図示せず）を介して接続される。 The central airframe 11 has a cylindrical frame pipe portion 16 that is longitudinal in the left-right direction, and a gear box portion 17 is provided at the center portion in the left-right direction of the frame pipe portion 16 from the gear box portion 17 to the input shaft 18. Protrudes forward. The input shaft 18 is connected to a PTO shaft (not shown) of the tractor via transmission means (not shown) including a universal joint and a transmission shaft.

フレームパイプ部16の長手方向端部である左端部には、箱状の伝動ケース部であるチェーンケース部（中央チェーンケース部）19の上部が取り付けられている。そして、チェーンケース部19と離間対向する鉛直面状で板状のブラケット部（延長ブラケット部）20の上部が中央耕耘カバー部15の長手方向端部である右端部に取り付けられている。つまり、中央耕耘カバー部15のカバー側板15aに、ブラケット部20の上部内面が固着されている。 An upper portion of a chain case portion (central chain case portion) 19 that is a box-shaped transmission case portion is attached to a left end portion that is a longitudinal end portion of the frame pipe portion 16. An upper portion of a vertical plate-like bracket portion (extension bracket portion) 20 that is spaced apart from and faces the chain case portion 19 is attached to a right end portion that is a longitudinal end portion of the central tillage cover portion 15. That is, the upper inner surface of the bracket portion 20 is fixed to the cover side plate 15a of the central tillage cover portion 15.

また、中央機体11の中央耕耘カバー部15は、中央耕耘体12の上方部を覆う湾曲板状のカバー本体板15bを有し、このカバー本体板15bの後端部に中央整地体13の上端部が蝶番等を介して回動中心軸線Ｂを中心として回動可能に取り付けられている。カバー本体板15bの左右方向両端部に鉛直面状のカバー側板15aが設けられている。 Further, the central tillage cover portion 15 of the central body 11 has a curved plate-like cover main body plate 15b that covers the upper portion of the central tillable body 12, and the upper end of the central leveling body 13 is arranged at the rear end of the cover main body plate 15b. The part is attached so as to be rotatable about a rotation center axis B through a hinge or the like. Vertical side cover side plates 15a are provided at both ends in the left-right direction of the cover body plate 15b.

中央耕耘体12は、チェーンケース部19の下部とブラケット部20の下部とにて回転可能に支持された左右方向の耕耘軸である回転軸21を有している。回転軸21は、フレームパイプ部16内の伝動シャフト22およびチェーンケース部19内のチェーン24等にて構成された伝動手段から動力を受けて回転する。回転軸21には、この回転軸21とともに回転しながら耕耘作業をする複数の耕耘爪23が取り付けられている。 The central tillage body 12 has a rotation shaft 21 that is a left and right tillage shaft rotatably supported by a lower portion of the chain case portion 19 and a lower portion of the bracket portion 20. The rotary shaft 21 rotates by receiving power from a transmission means constituted by a transmission shaft 22 in the frame pipe portion 16, a chain 24 in the chain case portion 19, and the like. The rotary shaft 21 is attached with a plurality of tilling claws 23 that perform the tilling work while rotating together with the rotary shaft 21.

中央整地体13は、中央耕耘カバー部15のカバー本体板15bの後端部に回動中心軸線Ｂを中心として上下方向に回動可能に設けられ中央耕耘体12の後方で整地作業をする中央整地部材（中央均平板）25を有している。つまり、中央整地体13は、１枚板状の中央整地部材25のみで構成されている。そして、中央整地部材25は、左右方向長手状の整地本体板部26と、この整地本体板部26の左右方向両端部に設けられた鉛直面状の側板部27とを有している。 The central leveling body 13 is provided at the rear end of the cover main body plate 15b of the central tillage cover portion 15 so as to be pivotable in the vertical direction about the rotation center axis B, and is a center for leveling work behind the central tillage body 12. A leveling member (central flat plate) 25 is provided. That is, the central leveling body 13 is composed of only a single plate-shaped central leveling member 25. The center leveling member 25 includes a leveling main body plate portion 26 that is longitudinal in the left-right direction, and vertical planar side plate portions 27 that are provided at both left and right ends of the leveling main body plate portion 26.

延長作業部３は、中央作業部２の中央機体11の左右方向両端部に回動中心軸線Ａを中心として上下方向に回動可能に設けられた延長機体31と、この延長機体31に回転可能に設けられ中央作業部２側から動力を受けて回転しながら耕耘作業をする延長耕耘体32と、延長機体31の耕耘カバー部である延長耕耘カバー部35の後端部に左右方向の回動中心軸線Ｂを中心として上下方向に回動可能に設けられ延長耕耘体32の後方で整地作業をする延長整地体33とを備えている。 The extension work unit 3 is provided with an extension machine 31 provided at both ends in the left-right direction of the central machine body 11 of the central work unit 2 so as to be rotatable in the vertical direction about the rotation center axis A, and is rotatable about the extension machine 31 Left and right pivots at the rear end of the extended tillage body 32 that is provided on the center work section 2 and rotates while receiving power from the central work section 2 and the extension tillage cover section 35 that is the tillage cover section of the extension machine 31 An extended leveling body 33 that is provided so as to be rotatable in the vertical direction around the central axis B and that performs leveling work behind the extended tillage body 32 is provided.

延長機体31は、左右方向長手状で円筒状のフレームパイプ部36を有している。フレームパイプ部36の長手方向端部である左端部には、箱状の伝動ケース部であるチェーンケース部（延長チェーンケース部）37の上部が取り付けられている。そして、チェーンケース部37と離間対向する鉛直面状で板状のブラケット部（延長部ラケット部）38の上部が延長耕耘カバー部35の長手方向端部である右端部に取り付けられている。つまり、延長耕耘カバー部35のカバー側板35aに、ブラケット部38の上部内面が固着されている。 The extension body 31 has a cylindrical frame pipe portion 36 that is longitudinal in the left-right direction. An upper portion of a chain case portion (extension chain case portion) 37 that is a box-shaped transmission case portion is attached to a left end portion that is a longitudinal end portion of the frame pipe portion 36. An upper portion of a vertical plate-like bracket portion (extension portion racket portion) 38 that is spaced apart from and opposite to the chain case portion 37 is attached to a right end portion that is a longitudinal end portion of the extended tillage cover portion 35. That is, the upper inner surface of the bracket portion 38 is fixed to the cover side plate 35a of the extended tillage cover portion 35.

なお、進行方向右側の延長作業部３の延長機体31のブラケット部38は、進行方向左側の延長作業部３の延長機体31のブラケット部38とは異なり、延長耕耘カバー部35より上方に位置する延長部38aを有し、この延長部38aがフレームパイプ部36の右端部に固着されている。 In addition, the bracket part 38 of the extension body 31 of the extension working part 3 on the right side in the traveling direction is located above the extension tillage cover part 35, unlike the bracket part 38 of the extension body 31 of the extension working part 3 on the left side in the traveling direction. An extension portion 38a is provided, and this extension portion 38a is fixed to the right end portion of the frame pipe portion 36.

また、延長機体31の延長耕耘カバー部35は、延長耕耘体32の上方部を覆う湾曲板状のカバー本体板35bを有し、このカバー本体板35bの後端部に延長整地体33の上端部が蝶番等を介して回動中心軸線Ｂを中心として回動可能に取り付けられている。カバー本体板35bの左右方向両端部に鉛直面状のカバー側板35aが設けられている。 The extended tillage cover portion 35 of the extension body 31 has a curved plate-like cover body plate 35b that covers the upper portion of the extension tillage body 32, and the upper end of the extension leveling body 33 is arranged at the rear end of the cover body plate 35b. The part is attached so as to be rotatable about a rotation center axis B through a hinge or the like. Vertical side cover side plates 35a are provided at both left and right ends of the cover body plate 35b.

延長耕耘体32は、チェーンケース部37の下部とブラケット部38の下部とにて回転可能に支持された左右方向の耕耘軸である回転軸41を有しており、この左右の各回転軸41には回転軸41とともに回転しながら耕耘作業をする複数の耕耘爪43が取り付けられている。 The extended tillage body 32 has a rotation shaft 41 that is a right and left tillage shaft that is rotatably supported by the lower portion of the chain case portion 37 and the lower portion of the bracket portion 38. Are attached with a plurality of tilling claws 43 that perform the tilling work while rotating together with the rotating shaft 41.

そして、左側の延長耕耘体32の回転軸41は、延長側のフレームパイプ部36内の伝動シャフト44およびチェーンケース部37内のチェーン45等にて構成された伝動手段から動力を受けて回転する。なお、中央機体11の伝動シャフト22の左端部には一方側クラッチ46が取り付けられ、左側の延長機体31の伝動シャフト44の右端部には一方側クラッチ46と解除可能に接続される他方側クラッチ47が取り付けられている。これら一方側クラッチ46および他方側クラッチ47は、左側の延長作業部３が展開作業状態になった場合に自動的に接続される。 Then, the rotating shaft 41 of the left extension tiller 32 rotates by receiving power from the transmission means composed of the transmission shaft 44 in the extension-side frame pipe portion 36, the chain 45 in the chain case portion 37, and the like. . A one-side clutch 46 is attached to the left end portion of the transmission shaft 22 of the central body 11, and the other-side clutch releasably connected to the right-side portion of the transmission shaft 44 of the left extension body 31. 47 is installed. The one-side clutch 46 and the other-side clutch 47 are automatically connected when the left extension working portion 3 is in the unfolding work state.

また、右側の延長耕耘体32の回転軸41は、中央側のフレームパイプ部16内の伝動シャフト48、チェーンケース部37の上部にて支持されこのチェーンケース部37から内側方に向かって突出する伝動シャフト49、およびチェーンケース部37内のチェーン50等にて構成された伝動手段から動力を受けて回転する。なお、中央機体11の伝動シャフト48の右端部には一方側クラッチ51が取り付けられ、右側の延長機体31の伝動シャフト49の左端部には一方側クラッチ51と解除可能に接続される他方側クラッチ52が取り付けられている。これら一方側クラッチ51および他方側クラッチ52は、右側の延長作業部３が展開作業状態になった場合に自動的に接続される。 Further, the rotation shaft 41 of the right extended tillage body 32 is supported by the transmission shaft 48 in the center side frame pipe part 16 and the upper part of the chain case part 37 and protrudes inward from the chain case part 37. It rotates by receiving power from a transmission means composed of the transmission shaft 49, the chain 50 in the chain case portion 37, and the like. One side clutch 51 is attached to the right end portion of the transmission shaft 48 of the central body 11, and the other side clutch 51 is releasably connected to the left end portion of the transmission shaft 49 of the right extension body 31. 52 is installed. The one side clutch 51 and the other side clutch 52 are automatically connected when the right extension working part 3 is in the unfolding work state.

延長整地体33は、延長耕耘カバー部35のカバー本体板35bの後端部に回動中心軸線Ｂを中心として上下方向に回動可能に設けられ延長耕耘体32の後方で整地作業をする延長整地部材（延長均平板）55を有している。つまり、延長整地体33は、１枚板状の延長整地部材55のみで構成されている。そして、延長整地部材55は、左右方向長手状の整地本体板部56と、この整地本体板部56の左右方向両端部に設けられた鉛直面状の側板部57とを有している。 The extended leveling body 33 is provided at the rear end portion of the cover main body plate 35b of the extended tillage cover portion 35 so as to be rotatable in the vertical direction about the rotation center axis B, and is used for leveling work behind the extended tillage body 32. A leveling member (extended flat plate) 55 is provided. That is, the extended leveling body 33 is composed of only a single plate-like extended leveling member 55. The extended leveling member 55 includes a leveling main body plate portion 56 that is longitudinal in the left-right direction, and vertical planar side plate portions 57 that are provided at both left and right ends of the leveling main body plate portion 56.

そして、中央機体11および延長機体31の少なくとも一方、すなわち例えば中央機体11の左右方向両端部には、中央作業部２と展開作業状態の延長作業部３とによる耕耘整地作業時に下端側が圃場の土中を移動しながら、その土中を移動する下端側以外の部分によって、中央耕耘体12の耕耘爪23にて外側方に向かって飛ばされた土が延長作業部３側（延長耕耘体側）に移動することを規制しかつ延長耕耘体32の耕耘爪43にて内側方に向かって飛ばされた土が中央作業部２側（中央耕耘体側）に移動することを規制する板状の土移動規制体61が脱着可能に設けられている。 Further, at least one of the central body 11 and the extension body 31, that is, for example, both ends of the central body 11 in the left-right direction, the lower end side is the soil of the farm field during the tilling work by the central working unit 2 and the extended working unit 3 in the unfolded working state. The soil blown toward the outside by the tillage claws 23 of the central tillage body 12 by the part other than the lower end side that moves in the soil while moving in the soil is extended to the extension work section 3 side (the extension tillage body side). A plate-shaped soil movement restriction that restricts movement and restricts the soil blown inward by the tillage claws 43 of the extended tillage body 32 to the central working section 2 side (central tillage body side). The body 61 is detachably provided.

つまり、中央作業部２および左側の延長作業部３間での土の移動を規制する左側の土移動規制体61は、中央機体11の一方側軸保持部であるチェーンケース部19に取付具（例えばボルトおよびナット）60によって脱着可能に取り付けられた鉛直面状の１枚の土移動規制板62にて構成されている。また、中央作業部２および右側の延長作業部３間での土の移動を規制する右側の土移動規制体61は、中央機体11の他方側軸保持部であるブラケット部20に取付具60によって脱着可能に取り付けられた鉛直面状の１枚の土移動規制板63にて構成されている。 That is, the left soil movement restricting body 61 that restricts the movement of the soil between the central working portion 2 and the left extending working portion 3 is attached to the chain case portion 19 that is one side shaft holding portion of the central airframe 11 ( For example, it is composed of a single soil movement restricting plate 62 having a vertical surface that is detachably attached by bolts and nuts 60. The right soil movement restricting body 61 that restricts the movement of soil between the central working portion 2 and the right extending working portion 3 is attached to the bracket portion 20 which is the other side shaft holding portion of the central airframe 11 by the fixture 60. It is composed of a single soil movement restricting plate 63 having a vertical surface that is detachably attached.

ここで、土移動規制板62は、図３および図４に示されるように、上端が傾斜した略矩形状をなす規制板部66と、この規制板部66の前端にこの規制板部66に対して直交状に一体に設けられた取付板部67とを有している。 Here, as shown in FIG. 3 and FIG. 4, the soil movement restricting plate 62 is provided with a restricting plate portion 66 having a substantially rectangular shape whose upper end is inclined, and the restricting plate portion 66 at the front end of the restricting plate portion 66. On the other hand, it has a mounting plate portion 67 integrally provided orthogonally.

そして、取付板部67が複数箇所（例えば４箇所）でチェーンケース部19の被取付板部68に取付具60によって脱着可能に取り付けられ、規制板部66の上端部の取付部分66aが複数箇所（例えば２箇所）で中央耕耘カバー部15の左側のカバー側板15aに取付具60によって脱着可能に取り付けられている。 The mounting plate portion 67 is detachably attached to the mounting plate portion 68 of the chain case portion 19 by a fixture 60 at a plurality of locations (for example, four locations), and there are a plurality of mounting portions 66a at the upper end portion of the regulation plate portion 66. It is detachably attached to the cover side plate 15a on the left side of the central tillage cover portion 15 by a fixture 60 (for example, at two locations).

この取付状態において、規制板部66の下端は、チェーンケース部19の下端と略同じ高さに位置して中央耕耘体12の回転軸21よりも下方に位置する。また、規制板部66の後端は、中央耕耘カバー部15の後端の下方に位置して中央耕耘体12の耕耘爪23の先端移動軌跡よりも後方に位置する。つまり、この土移動規制板62は、側面視でチェーンケース部19の後方かつ中央耕耘カバー部15の下方の領域に位置するように設けられている。なお、チェーンケース部19の被取付板部68は、ケース本体部69から後方に向かって突出する突出板部70の後端にこの突出板部70に対して直交状に設けられている。 In this attached state, the lower end of the restricting plate portion 66 is positioned at substantially the same height as the lower end of the chain case portion 19 and is positioned below the rotating shaft 21 of the central tillage body 12. Further, the rear end of the restriction plate portion 66 is positioned below the rear end of the central tillage cover portion 15 and is located behind the trajectory of the tip of the tillage claw 23 of the central tillage body 12. That is, the soil movement restricting plate 62 is provided so as to be located in a region behind the chain case portion 19 and below the central tillage cover portion 15 in a side view. The attached plate portion 68 of the chain case portion 19 is provided orthogonal to the protruding plate portion 70 at the rear end of the protruding plate portion 70 protruding rearward from the case main body 69.

また、土移動規制板63は、図２（ｂ）に示されるように、土移動規制板62と略同じ形状のもので、上端が傾斜した略矩形状をなす規制板部71と、この規制板部71の前端にこの規制板部71に対して直交状に一体に設けられた取付板部72とを有している。 Further, as shown in FIG. 2 (b), the soil movement restriction plate 63 has substantially the same shape as the soil movement restriction plate 62, and a restriction plate portion 71 having a substantially rectangular shape with an inclined upper end, At the front end of the plate portion 71, there is an attachment plate portion 72 that is integrally provided perpendicularly to the restriction plate portion 71.

そして、取付板部72が複数箇所（例えば３箇所）でブラケット部20の被取付板部73に取付具60によって脱着可能に取り付けられ、規制板部71の上端部の取付部分71aが複数箇所（例えば２箇所）で中央耕耘カバー部15の右側のカバー側板15aに取付具60によって脱着可能に取り付けられている。 The mounting plate portion 72 is detachably attached to the mounting plate portion 73 of the bracket portion 20 by a mounting tool 60 at a plurality of locations (for example, three locations), and the mounting portion 71a at the upper end portion of the regulation plate portion 71 has a plurality of locations ( For example, it is detachably attached to the cover side plate 15a on the right side of the central tillage cover portion 15 by a fixture 60 at two places.

この取付状態において、規制板部71の下端は、中央耕耘体12の回転軸21よりも下方に位置する。また、規制板部71の後端は、中央耕耘カバー部15の後端の下方に位置して中央耕耘体12の耕耘爪23の先端移動軌跡よりも後方に位置する。つまり、この土移動規制板63は、土移動規制板62と同様、側面視でブラケット部20の後方かつ中央耕耘カバー部15の下方の領域に位置するように設けられている。 In this attached state, the lower end of the restricting plate portion 71 is located below the rotating shaft 21 of the central tillage body 12. Further, the rear end of the restriction plate portion 71 is located below the rear end of the central tillage cover portion 15 and is located behind the trajectory of the tip of the tillage claw 23 of the central tillage body 12. That is, the soil movement restricting plate 63 is provided so as to be located in a region behind the bracket portion 20 and below the central tillage cover portion 15 in a side view, like the soil movement restricting plate 62.

また、中央整地体13および延長整地体33の少なくとも一方、すなわち例えば中央整地体13の左右方向両端部には、機体側土移動規制体である土移動規制体61と協働して、中央耕耘体12の耕耘爪23にて外側方に向かって飛ばされた土が延長作業部３側（延長耕耘体側）に移動することを規制しかつ延長耕耘体32の耕耘爪43にて飛ばされた土が中央作業部２側（中央耕耘体側）に移動することを規制する整地側土移動規制体81が脱着可能に設けられている。 In addition, at least one of the central leveling body 13 and the extended leveling body 33, that is, for example, at both ends in the left-right direction of the central leveling body 13, in cooperation with the soil movement restriction body 61 that is the airframe side soil movement restriction body, Soil that has been blown by the tillage claws 43 of the extended tillage body 32 and that the soil blown outward by the tillage claws 23 of the body 12 is restricted to move to the extension work unit 3 side (the extension tillage body side) Is provided so as to be detachable. The soil leveling side soil movement regulating body 81 for regulating the movement of the soil to the central working unit 2 side (central tillage body side).

なお、整地側土移動規制体81と土移動規制体61とは、中央作業部２と展開作業状態の延長作業部３とによる耕耘整地作業時に、側面視で常に互いに部分的に重なり合うように位置する。つまり、耕耘整地作業時において、土移動規制体61の後端部と整地側土移動規制体81の前端部との間には、隙間ができない構成となっている（図４参照)。換言すると、中央耕耘カバー部15と中央耕耘体12と中央整地体13と圃場面との間の中央側空間部79と、延長耕耘カバー部35と延長耕耘体32と延長整地体33と圃場面との間の延長側空間部80とが、両規制体61，81によって仕切られて互いに不連通状態となっている。 The leveling soil movement regulating body 81 and the soil movement regulating body 61 are positioned so as to always partially overlap each other when viewed from the side during the tilling work by the central working unit 2 and the extended working unit 3 in the unfolded working state. To do. That is, there is no gap between the rear end portion of the soil movement restricting body 61 and the front end portion of the soil leveling side soil movement restricting body 81 during the tilling work (see FIG. 4). In other words, the central side space 79 between the central tillage cover part 15, the central tillage body 12, the central leveling body 13, and the field scene, the extended tillage cover part 35, the extended tillage body 32, the extended leveling body 33 and the field scene. The extension-side space 80 between the two is partitioned by the two regulating bodies 61 and 81 and is in a non-communication state.

ここで、土移動規制板62と協働して中央作業部２および左側の延長作業部３間での土の移動を規制する整地側土移動規制体81は、中央整地体13の左側の側板部27に取付具（例えばボルトおよびナット）によって脱着可能に取り付けられた鉛直面状の１枚の整地側土移動規制板82にて構成されている。また、土移動規制板63と協働して中央作業部２および右側の延長作業部３間での土の移動を規制する整地側土移動規制体81は、中央整地体13の右側の側板部27に取付具（例えばボルトおよびナット）によって脱着可能に取り付けられた鉛直面状の１枚の整地側土移動規制板83にて構成されている。 Here, the leveling-side soil movement regulating body 81 that regulates the movement of the soil between the central working unit 2 and the left extension working unit 3 in cooperation with the soil movement regulating plate 62 is the left side plate of the central leveling body 13. It is composed of a single earth-moving-side soil movement regulating plate 82 having a vertical plane shape that is detachably attached to the portion 27 by a fixture (for example, a bolt and a nut). Further, the leveling-side soil movement regulating body 81 that regulates the movement of the soil between the central working unit 2 and the right extension working unit 3 in cooperation with the soil movement regulating plate 63 is a right side plate part of the central leveling body 13. 27 is composed of a single ground leveling soil movement regulating plate 83 having a vertical surface and attached to the 27 by a fixture (for example, a bolt and a nut).

整地側土移動規制板82は、図３および図４に示されるように、略３角形状のもので、後側に取付部82aを有し、この取付部82aが複数箇所（例えば２箇所）で左側の側板部27に脱着可能に取り付けられている。また、整地側土移動規制板83は、図２（ｂ）に示されるように、整地側土移動規制板82と同じ略３角形状のもので、後側に取付部83aを有し、この取付部83aが複数箇所（例えば２箇所）で右側の側板部27に脱着可能に取り付けられている。 As shown in FIGS. 3 and 4, the leveling soil movement restriction plate 82 has a substantially triangular shape, and has mounting portions 82a on the rear side. The mounting portions 82a are provided at a plurality of locations (for example, two locations). And detachably attached to the left side plate portion 27. Further, as shown in FIG. 2 (b), the leveling side soil movement restriction plate 83 is substantially the same triangular shape as the leveling side soil movement restriction plate 82, and has a mounting portion 83a on the rear side. The attachment portion 83a is detachably attached to the right side plate portion 27 at a plurality of locations (for example, two locations).

なお、図１および図２（ａ）に示されるように、左側の延長機体31のチェーンケース部37には、耕耘整地作業時に下端側が圃場の土中を移動しながら、その土中を移動する下端側以外の部分によって、延長耕耘体32の耕耘爪43にて外側方に向かって飛ばされた土が延長作業部３外に移動することを規制する板状の外端土移動規制体86が取付具60で脱着可能に設けられている。この外端土移動規制体86は、土移動規制板62と同一形状の外端土移動規制板87にて構成されている。 As shown in FIGS. 1 and 2 (a), the chain case portion 37 of the left extension machine body 31 moves in the soil while the lower end side moves in the soil of the field during the tilling work. A plate-shaped outer end soil movement restricting body 86 that restricts movement of the soil blown outward by the tillage claws 43 of the extended tillage body 32 to the outside of the extension work unit 3 by a portion other than the lower end side is provided. It is provided so as to be detachable with the fixture 60. The outer end soil movement restricting body 86 is constituted by an outer end soil movement restricting plate 87 having the same shape as the soil movement restricting plate 62.

また、この外端土移動規制板87と協働して土の延長作業部３外への移動を規制する外端整地側土移動規制板91が左側の延長整地体33の外端側の側板部57に脱着可能に取り付けられている。 In addition, an outer end leveling side soil movement regulating plate 91 that regulates the movement of the soil outside the extension working part 3 in cooperation with the outer end soil movement regulating plate 87 is a side plate on the outer end side of the left extension leveling body 33. The unit 57 is detachably attached.

さらに、図１および図２（ｃ）に示されるように、右側の延長機体31のブラケット部38には、耕耘整地作業時に下端側が圃場の土中を移動しながら、その土中を移動する下端側以外の部分によって、延長耕耘体32の耕耘爪43にて外側方に向かって飛ばされた土が延長作業部３外に移動することを規制する板状の外端土移動規制体88が取付具60で脱着可能に設けられている。この外端土移動規制体88は、土移動規制板63と略同じ形状の外端土移動規制板89にて構成されている。 Furthermore, as shown in FIG. 1 and FIG. 2 (c), the bracket 38 of the right extension body 31 has a lower end that moves through the soil while the lower end moves through the soil of the field during the tilling work. A plate-shaped outer end soil movement restricting body 88 for restricting the movement of the soil blown outward by the tillage claws 43 of the extended tillage body 32 to the outside of the extension work unit 3 is attached by a portion other than the side. The tool 60 is detachable. The outer end soil movement restricting body 88 is constituted by an outer end soil movement restricting plate 89 having substantially the same shape as the soil movement restricting plate 63.

また、この外端土移動規制板89と協働して土の延長作業部３外への移動を規制する外端整地側土移動規制板92が右側の延長整地体33の外端側の側板部57に脱着可能に取り付けられている。 In addition, an outer end leveling side soil movement regulating plate 92 that regulates movement of the soil outside the extension working part 3 in cooperation with the outer end soil movement regulating plate 89 is a side plate on the outer end side of the right side extended leveling body 33. The unit 57 is detachably attached.

また一方、図５に示されるように、農作業機１は、延長作業部３を中央作業部２に対して上下方向に回動させる油圧シリンダ等の回動駆動手段95を備えている。回動駆動手段95は、例えばシリンダ本体96と、このシリンダ本体96内に対して出入りするロッド97とを有している。また、中央整地体13は係合受部材98を有し、延長整地体33は延長作業部３の展開作業状態時に係合受部材98と係脱可能に係合する可動係合部材99を有している。 On the other hand, as shown in FIG. 5, the agricultural working machine 1 includes a rotation driving means 95 such as a hydraulic cylinder that rotates the extension working unit 3 in the vertical direction with respect to the central working unit 2. The rotation drive means 95 includes, for example, a cylinder body 96 and a rod 97 that enters and exits the cylinder body 96. Further, the central leveling body 13 has an engagement receiving member 98, and the extended leveling body 33 has a movable engagement member 99 that is detachably engaged with the engagement receiving member 98 when the extension working portion 3 is in the unfolded state. is doing.

次に、農作業機１の作用等を説明する。 Next, the operation and the like of the farm work machine 1 will be described.

例えば農作業機１を使用して最大の作業幅で耕耘整地作業をする際には、左右両側の延長作業部３を中央作業部２に対して下方へ回動させて展開作業状態に切り換える。 For example, when the farm work machine 1 is used to perform the tilling work with the maximum work width, the extension work parts 3 on both the left and right sides are rotated downward with respect to the central work part 2 to switch to the unfolding work state.

延長作業部３が展開作業状態に切り換えられると、中央作業部２のクラッチ46，51と各延長作業部３のクラッチ47，52とが互いに接続される。また、中央作業部２の中央整地体13の係合受部材98と延長作業部３の延長整地体33の可動係合部材99とが互いに係合し、中央整地体13と延長整地体33とが中央機体11および延長機体31に対して回動中心軸線Ｂを中心として一体となって上下回動可能な連結状態となる。 When the extension work part 3 is switched to the unfolding work state, the clutches 46 and 51 of the central work part 2 and the clutches 47 and 52 of each extension work part 3 are connected to each other. Further, the engagement receiving member 98 of the central leveling body 13 of the central working unit 2 and the movable engaging member 99 of the extended leveling body 33 of the extending working unit 3 are engaged with each other, and the central leveling body 13 and the extended leveling body 33 are Is connected to the central body 11 and the extension body 31 so as to be integrally rotatable around the rotation center axis B.

そして、この状態で、トラクタの走行により農作業機１全体を進行方向前方に移動させると、中央作業部２の中央耕耘体12と延長作業部３の延長耕耘体32とにて耕耘作業が行われる。 In this state, when the entire farm work machine 1 is moved forward in the traveling direction by traveling of the tractor, the tilling work is performed by the central tillage body 12 of the center work section 2 and the extension tillage body 32 of the extension work section 3. .

また、中央耕耘体12と延長耕耘体32との後方では、可動係合部材99と係合受部材98とが互いに係合して連結状態となっている中央整地体13と延長整地体33とにて整地作業が行われる。 Further, behind the central tillage body 12 and the extended tillage body 32, the central leveling body 13 and the extended leveling body 33 in which the movable engagement member 99 and the engagement receiving member 98 are engaged with each other and connected to each other. Leveling work is performed at

そして、この耕耘整地作業時において、図４および図７の左側に示されるように、中央側と延長側との間に土移動規制体61および整地側土移動規制体81が位置するため、中央耕耘体12の耕耘爪23にて飛ばされた土は、両規制体61，81の一方面に当たり延長作業部３側に移動せず、延長耕耘体32の耕耘爪43にて飛ばされた土は、両規制体61，81の他方面に当たり中央作業部２側に移動せず、その結果、土が偏らず、圃場面に大きな凹凸が生じる不具合が発生せず、整地性が向上する。 And in this tillage leveling work, as shown on the left side of FIG. 4 and FIG. 7, the soil movement restriction body 61 and the leveling side soil movement restriction body 81 are located between the center side and the extension side. The soil blown by the tillage claws 23 of the tillage body 12 hits one side of the two regulating bodies 61 and 81 and does not move to the extension working part 3 side, and the soil blown by the tillage claws 43 of the extension tillage body 32 is In addition, the two regulating bodies 61 and 81 are brought into contact with the other surfaces and do not move to the central working unit 2 side. As a result, the soil is not biased, and there is no problem that large unevenness occurs in the field scene, and the leveling is improved.

なお、図７の右側に示されるように、両規制体61，81がないと、中央側と延長側との間で土が移動し、圃場面に大きな凹凸が生じる。これは、チェーンケース部19，37の存在により、中央作業部２と延長作業部３とのつなぎ部では、耕耘爪23，43の不連続範囲ができてしまうからである。 Note that, as shown on the right side of FIG. 7, when both regulating bodies 61 and 81 are not provided, the soil moves between the center side and the extension side, and large unevenness is generated in the field scene. This is because, due to the presence of the chain case portions 19 and 37, a discontinuous range of the tilling claws 23 and 43 is formed at the connecting portion between the central working portion 2 and the extended working portion 3.

そして、このような農作業機１によれば、中央機体11の左右方向両端部および中央整地体13の左右方向両端部に土移動規制体61および整地側土移動規制体81が設けられているため、圃場面に大きな凹凸が生じる不具合を防止でき、適切な耕耘整地作業ができる。 And according to such a farming machine 1, since the soil movement control body 61 and the leveling side soil movement control body 81 are provided in the left-right direction both ends of the central body 11, and the left-right direction both ends of the central leveling body 13, it is. , It is possible to prevent a problem that large irregularities are generated in the farm scene, and to perform appropriate tillage work.

また、土移動規制体61の下端側および整地側土移動規制体81の下端側は、耕耘整地作業時に圃場の土中を移動するようになっているため、圃場面に大きな凹凸が生じる不具合を効果的に防止でき、より一層適切な耕耘整地作業ができる。 In addition, the lower end side of the soil movement restricting body 61 and the lower end side of the soil grading side soil movement restricting body 81 are designed to move through the soil of the field during the plowing and leveling work. It can be effectively prevented and more appropriate tillage work can be performed.

なお、上記一実施の形態では、土移動規制体61が中央機体11の左右方向両端部に設けられた構成について説明したが、例えば図８に示すように、土移動規制体61が延長機体31の内端部（中央機体11と対向する側の端部）に設けられた構成でもよい。この図８の例では、左側の延長機体31の内端部のブラケット部38に取り付けられた土移動規制体61が土移動規制板63にて構成され、右側の延長機体31の内端部のチェーンケース部37に取り付けられた土移動規制体61が土移動規制板62にて構成されている。 In the embodiment described above, the soil movement restricting body 61 is described as being provided at both left and right ends of the central airframe 11. However, for example, as shown in FIG. The structure provided in the inner edge part (end part on the side facing the central body 11) may be used. In the example of FIG. 8, a soil movement restricting body 61 attached to the bracket portion 38 at the inner end of the left extension machine body 31 is configured by a soil movement restriction plate 63, and the inner end part of the right extension machine body 31 is A soil movement restricting body 61 attached to the chain case part 37 is constituted by a soil movement restricting plate 62.

また、土移動規制体61が中央機体11および延長機体31のいずれか一方のみに設けられた構成には限定されず、土移動規制体61が中央機体11および延長機体31の両方に設けられた構成でもよい。 The soil movement restricting body 61 is not limited to the configuration provided in only one of the central airframe 11 and the extension airframe 31, and the soil movement restricting body 61 is provided in both the central airframe 11 and the extension airframe 31. It may be configured.

さらに、農作業機１は、整地側土移動規制体81を有しない構成でもよく、例えば図９に示すように、整地側土移動規制体81の代わりに、土移動規制体61を図３に示すものよりも大きくし、土移動規制体61のみで中央側空間部79と延長側空間部80とを仕切るようにしてもよい。 Furthermore, the agricultural machine 1 may be configured without the leveling soil movement restriction body 81. For example, as shown in FIG. 9, a soil movement restriction body 61 is shown in FIG. The central space portion 79 and the extended space portion 80 may be partitioned by the soil movement regulating body 61 alone.

また、整地側土移動規制体81が中央整地体13の左右方向両端部に設けられた構成には限定されず、例えば整地側土移動規制体81が延長整地体33の内端部（中央整地体13と対向する側の端部）に設けられた構成でもよい。 Further, the ground leveling soil movement regulating body 81 is not limited to the configuration provided at both ends in the left-right direction of the central leveling body 13. For example, the ground leveling side soil movement regulating body 81 is disposed at the inner end (central ground leveling) of the extended leveling body 33. The structure provided in the edge part of the side facing the body 13 may be sufficient.

さらに、整地側土移動規制体81が中央整地体13および延長整地体33のいずれか一方のみに設けられた構成には限定されず、例えば整地側土移動規制体81が中央整地体13および延長整地体33の両方に設けられた構成でもよい。 Furthermore, the grading side soil movement restricting body 81 is not limited to the configuration provided in only one of the central grading body 13 and the extended grading body 33. The structure provided in both the leveling bodies 33 may be sufficient.

また、農作業機１は、左右両側に延長作業部３を備えた３分割式の構成には限定されず、例えば左右いずれか片側のみに延長作業部３を備えた２分割式の構成等でもよい。 Moreover, the agricultural machine 1 is not limited to a three-split configuration including the extension work portions 3 on both the left and right sides, and may be a two-split configuration including the extension work portions 3 on only one of the left and right sides, for example. .

さらに、農作業機１は、ロータリーには限定されず、代掻作業をする代掻機（ハロー）でもよく、この場合、泥土の移動を規制でき、適切な代掻作業（耕耘整地作業）ができる。 Further, the farm work machine 1 is not limited to a rotary, and may be a plowing machine (hello) that performs pricking work. In this case, it is possible to regulate the movement of mud and perform appropriate plowing work (cultivation leveling work). .

１農作業機
２作業部である中央作業部
３延長作業部
11 機体である中央機体
12 耕耘体である中央耕耘体
13 整地体である中央整地体
31 延長機体
32 延長耕耘体
33 延長整地体
61 土移動規制体
81 整地側土移動規制体 DESCRIPTION OF SYMBOLS 1 Farming machine 2 Central working part which is working part 3 Extension working part
11 Central Aircraft
12 Central cultivated body
13 Central leveling body
31 Extension aircraft
32 Extension tillage
33 Extended leveling body
61 Soil movement regulation body
81 Leveling soil movement restriction body

Claims

A working unit coupled to the traveling vehicle;
An extension working part provided in the working part and selectively switched between the folding non-working state and the unfolding working state;
The working unit is
The aircraft,
A plowing body that is rotatably provided in this machine body and performs a plowing work while rotating,
With a leveling body that performs leveling work behind this tilled body,
The extension working part is:
Extension aircraft,
An extension tiller that is provided rotatably on the extension body and that performs tilling work while rotating,
With an extended leveling body that performs leveling work behind this extended tillage body,
At least one of the machine body and the extension machine body restricts movement of the soil blown by the tillage body to the extension work section side, and the soil blown by the extension tillage body has the work section side. A farm working machine characterized in that a soil movement restricting body is provided for restricting movement to the soil.

The farm work machine according to claim 1, wherein the lower end side of the soil movement regulating body moves in the soil of the farm field during the plowing work.

At least one of the leveling body and the extended leveling body must restrict the soil blown by the tillage body from moving to the extension work section side, and the soil blown by the extension tillage body must move to the work section side A soil leveling body that regulates soil level is provided,
3. The agricultural machine according to claim 1, wherein the leveling soil movement restriction body and the soil movement restriction body are positioned so as to always partially overlap each other when viewed from the side during tillage leveling work.