JP6871566B2

JP6871566B2 - Agricultural work machine

Info

Publication number: JP6871566B2
Application number: JP2017002827A
Authority: JP
Inventors: 池田　俊朗; 俊朗池田; 黒田　将仁; 将仁黒田; 淳司岩松; 大輔佐久間; 石丸　雅邦; 雅邦石丸
Original assignee: Iseki and Co Ltd
Current assignee: Iseki and Co Ltd
Priority date: 2016-09-13
Filing date: 2017-01-11
Publication date: 2021-05-12
Anticipated expiration: 2037-01-11
Also published as: JP2018042544A

Description

本発明は、土寄せ手段を備える農作業機に関するものである。 The present invention relates to an agricultural work machine provided with earth gathering means.

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

この従来の農作業機は、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、耕耘体側に土を寄せる土寄せ手段とを備え、この土寄せ手段は、支持体とこの支持体によって支持された土寄せ体とを有している。 This conventional agricultural work machine is provided with a tiller for tilling work, a ground leveling body for ground preparation work behind the tiller, and a soil gathering means for pulling soil toward the tiller, and the soil gathering means is a support and this. It has a soil gathering body supported by a support body.

特開２００４−４９１４６号公報Japanese Unexamined Patent Publication No. 2004-49146

そして、このような農作業機においては、安全性の確保が重要な課題であり、安全性の向上が求められている。 In such agricultural work machines, ensuring safety is an important issue, and improvement of safety is required.

本発明は、このような点に鑑みなされたもので、安全性の向上を図ることができる農作業機を提供することを目的とする。 The present invention has been made in view of such a point, and an object of the present invention is to provide an agricultural work machine capable of improving safety.

請求項１記載の農作業機は、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、前記耕耘体側に土を寄せる土寄せ手段とを備え、前記土寄せ手段は、前後方向長手状の支持体と、この支持体によって支持され、前記支持体に対して前後方向の回動中心軸線を中心として上下方向に回動可能な土寄せ体とを有し、前記土寄せ体は、前記前後方向の回動中心軸線を中心とする回動により、作業面によって前記耕耘体側に土を寄せる作業状態と、前記作業面が斜め上方を向くように鉛直方向に対して農作業機の中央側である内側に傾いた傾斜状の非作業状態とに切換可能となっているものである。 The agricultural work machine according to claim 1 includes a tiller body for tilling work, a ground preparation body for land preparation work behind the tiller body, and a soil gathering means for pulling soil toward the tiller body, and the soil gathering means is front and rear. The soil gathering body has a support having a longitudinal shape in the direction and a soil gathering body that is supported by the support and can rotate in the vertical direction about the rotation center axis in the front-rear direction with respect to the support. by rotation around the longitudinal direction of the rotational axis line, a working state gather dirt on the tilling side by the work surface, the center side of the agricultural machine the working surface with respect to the vertical direction so as to face obliquely upward in which has a switchable to sloped and non-working tilted inward at.

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、土寄せ体を作業状態および非作業状態のいずれか一方からいずれか他方へ切り換える際には、土寄せ体を１８０度とは異なる角度をもって前後方向の回動中心軸線を中心として回動させるものである。 The agricultural work machine according to claim 2 has an angle different from 180 degrees when the soil gathering body is switched from one of the working state and the non-working state to the other in the agricultural working machine according to claim 1. Is to rotate around the center axis of rotation in the front-rear direction.

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、土寄せ体は、位置決め係合部を有し、支持体は、前記土寄せ体の作業状態時に前記位置決め係合部と係合する作業用係合部と、前記土寄せ体の非作業状態時に前記位置決め係合部と係合する非作業用係合部とを有するものである。 The agricultural work machine according to claim 3 is the agricultural work machine according to claim 1 or 2, wherein the soil gathering body has a positioning engaging portion, and the support is engaged with the positioning engaging portion during the working state of the soil gathering body. It has a matching working engaging portion and a non-working engaging portion that engages with the positioning engaging portion when the soil gathering body is in a non-working state.

請求項４記載の農作業機は、請求項３記載の農作業機において、位置決め係合部は、上下１対の位置決めピンにて構成され、作業用係合部は、上下１対の作業用孔部分にて構成され、非作業用係合部は、上下１対の非作業用孔部分にて構成されているものである。 The agricultural work machine according to claim 4 is the agricultural work machine according to claim 3, wherein the positioning engaging portion is composed of a pair of upper and lower positioning pins, and the working engaging portion is a pair of upper and lower working hole portions. The non-working engaging portion is composed of a pair of upper and lower non-working hole portions.

請求項５記載の農作業機は、請求項１ないし４のいずれか一記載の農作業機において、土寄せ体および支持体の各々は、作業用固定孔部および非作業用固定孔部を有し、前記土寄せ体の作業状態時には、固定ピンが前記土寄せ体の前記作業用固定孔部および前記支持体の前記作業用固定孔部に挿入され、前記土寄せ体の非作業状態時には、前記固定ピンが前記土寄せ体の前記非作業用固定孔部および前記支持体の前記非作業用固定孔部に挿入されるものである。 The agricultural work machine according to claim 5 is the agricultural work machine according to any one of claims 1 to 4, wherein each of the soil gathering body and the support has a working fixing hole portion and a non-working fixing hole portion. When the soil gathering body is in the working state, the fixing pin is inserted into the working fixing hole portion of the soil gathering body and the working fixing hole portion of the support, and when the soil gathering body is not in the working state, the fixing pin is inserted into the soil gathering body. It is inserted into the non-working fixing hole of the body and the non-working fixing hole of the support.

請求項６記載の農作業機は、請求項１ないし５のいずれか一記載の農作業機において、土寄せ体は、土を切削しながら耕耘体側に寄せるサイドディスクを有するものである。 The agricultural work machine according to claim 6 is the agricultural work machine according to any one of claims 1 to 5, wherein the soil gathering body has a side disk that is brought closer to the tiller side while cutting the soil.

請求項７記載の農作業機は、請求項１ないし６のいずれか一記載の農作業機において、耕耘体は、左右方向に延びる軸状の軸本体部と、この軸本体部に突設され、耕耘爪を保持する複数の爪ホルダー部とを有し、平面視で、土寄せ体の作用ラインと前記軸本体部との交点が、最外端の前記爪ホルダー部よりも内側に位置するものである。 The agricultural work machine according to claim 7 is the agricultural work machine according to any one of claims 1 to 6, wherein the cultivated body is a shaft-shaped shaft main body extending in the left-right direction and is projected from the shaft main body to be cultivated. It has a plurality of claw holder portions for holding the claws, and the intersection of the action line of the earth gathering body and the shaft main body portion is located inside the claw holder portion at the outermost end in a plan view. ..

請求項８記載の農作業機は、請求項１ないし７のいずれか一記載の農作業機において、耕耘体は、巻付防止線状部材を有し、平面視で、土寄せ体の作用ラインと最前端に位置した状態の前記巻付防止線状部材との交点が、当該巻付防止線状部材の端縁よりも内側に位置するものである。 The agricultural work machine according to claim 8 is the agricultural work machine according to any one of claims 1 to 7, wherein the cultivated body has a wrapping prevention linear member, and in a plan view, the action line and the front end of the soil gathering body. The intersection with the wrapping prevention linear member in the state of being located is located inside the edge of the wrapping prevention linear member.

本発明によれば、土寄せ手段の土寄せ体は、耕耘体側に土を寄せる作業状態と、作業面が上方側を向くように内側に傾いた非作業状態とに切換可能となっているため、安全性の向上を図ることができる。 According to the present invention, the soil gathering body of the soil gathering means can be switched between a working state in which the soil is gathered toward the tiller side and a non-working state in which the work surface is tilted inward so as to face upward, so that it is safe. It is possible to improve the sex.

本発明の第１の実施の形態に係る農作業機の側面図である。It is a side view of the agricultural work machine which concerns on 1st Embodiment of this invention. 同上農作業機の正面図である。It is the front view of the same farm work machine. 同上農作業機の側面図である。It is a side view of the same farm work machine. 同上農作業機の正面図である。It is the front view of the same farm work machine. 同上農作業機の土寄せ手段の分解斜視図である。It is an exploded perspective view of the soil gathering means of the agricultural work machine as above. 同上土寄せ手段の部分断面図である。It is a partial cross-sectional view of the soil gathering means of the same as above. 同上土寄せ手段の斜視図で、（ａ）は非作業状態の図であり、（ｂ）は作業状態の図である。In the perspective view of the soil gathering means of the same as above, (a) is a diagram of a non-working state, and (b) is a diagram of a working state. 本発明の第２の実施の形態に係る農作業機の土寄せ手段の分解斜視図である。It is an exploded perspective view of the soil gathering means of the agricultural work machine which concerns on the 2nd Embodiment of this invention. 同上農作業機の正面図である。It is the front view of the same farm work machine. 本発明の第３の実施の形態に係る農作業機の土寄せ手段の斜視図で、（ａ）は非作業状態の図であり、（ｂ）は作業状態の図である。It is a perspective view of the soil gathering means of the agricultural work machine which concerns on 3rd Embodiment of this invention, (a) is the figure of the non-working state, and (b) is the figure of the working state. 同上土寄せ手段の側面図で、（ａ）は非作業状態の図であり、（ｂ）は作業状態の図である。In the same side view of the soil gathering means, (a) is a view of a non-working state, and (b) is a view of a working state. 本発明の第４の実施の形態に係る農作業機の土寄せ手段の斜視図で、（ａ）は非作業状態の図であり、（ｂ）は作業状態の図である。It is a perspective view of the soil gathering means of the agricultural work machine which concerns on 4th Embodiment of this invention, (a) is the figure of the non-working state, and (b) is the figure of the working state. 同上土寄せ手段の側面図で、（ａ）は非作業状態の図であり、（ｂ）は作業状態の図である。In the same side view of the soil gathering means, (a) is a view of a non-working state, and (b) is a view of a working state. 本発明の第５の実施の形態に係る農作業機の土寄せ手段の分解斜視図である。It is an exploded perspective view of the soil gathering means of the agricultural work machine which concerns on 5th Embodiment of this invention. 同上土寄せ手段の斜視図で、（ａ）は非作業状態の図であり、（ｂ）は作業状態の図である。In the perspective view of the soil gathering means of the same as above, (a) is a diagram of a non-working state, and (b) is a diagram of a working state. 本発明の第６の実施の形態に係る農作業機の部分正面図である。It is a partial front view of the agricultural work machine which concerns on 6th Embodiment of this invention. 同上農作業機の部分平面図である。It is a partial plan view of the same farm work machine. 同上農作業機の耕耘体の軸方向端部を示す斜視図である。It is a perspective view which shows the axial end part of the cultivated body of the same farm work machine. 同上農作業機の巻付防止線状部材およびその取付手段を示す図である。It is a figure which shows the winding prevention linear member of the agricultural work machine and the attachment means thereof.

本発明の第１の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。 The first embodiment of the present invention will be described with reference to FIGS. 1 to 7.

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、そのトラクタの走行により圃場を前方（進行方向）に移動しながら耕耘整地作業（農作業）を行うものである。 1 in the figure is an agricultural work machine, and this agricultural work machine 1 is connected to, for example, the rear part of a tractor (not shown) which is a traveling vehicle, and the tractor travels to move the field forward (in the direction of travel) while cultivating land. Work (farming work) is performed.

農作業機１は、トラクタの後部の３点リンク部（農作業機昇降部）に脱着可能に連結される機体２と、この機体２に回転可能に設けられ所定方向に回転しながら耕耘作業をする耕耘体（ロータリー）３と、機体２に左右方向の軸（回動支点）５を中心として上下方向に回動可能に設けられ耕耘体３の後方で整地作業する板状の整地体（均平板）４とを備えている。 The farm work machine 1 is a machine 2 that is detachably connected to a three-point link portion (agricultural work machine elevating part) at the rear of the tractor, and a tillage that is rotatably provided on the machine body 2 and performs tillage work while rotating in a predetermined direction. A plate-shaped ground leveling body (flat plate) that is provided on the body (rotary) 3 and the machine body 2 so as to be rotatable in the vertical direction around an axis (rotating fulcrum) 5 in the left-right direction and that performs ground leveling work behind the tiller body 3. It is equipped with 4.

また、農作業機１は、この農作業機１の側端部である左側端部に位置して耕耘体３側（例えば耕耘体３の軸方向端部である左端部の前方側）に圃場の土を寄せる土寄せ手段６とを備えている。 Further, the farm work machine 1 is located at the left end portion which is the side end portion of the farm work machine 1 and is located on the cultivated body 3 side (for example, the front side of the left end portion which is the axial end portion of the cultivated body 3). It is equipped with a soil gathering means 6 for gathering the soil.

機体２は、図１等に示すように、トラクタの後部の３点リンク部に脱着可能に連結される３点連結部（走行車連結部）11を有している。３点連結部11は、１本のトップマスト12および左右１対で２本のロワーアーム13を有している。なお、トップマスト12にはトップピン14が取り付けられ、ロワーアーム13にはロワーピン15が取り付けられている。 As shown in FIG. 1 and the like, the airframe 2 has a three-point connecting portion (traveling vehicle connecting portion) 11 that is detachably connected to a three-point link portion at the rear of the tractor. The three-point connecting portion 11 has one top mast 12 and two lower arms 13 in a pair on the left and right. The top pin 14 is attached to the top mast 12, and the lower pin 15 is attached to the lower arm 13.

また、機体２は、入力軸16を回転可能に保持する軸保持部であるミッションケース部17を有し、このミッションケース部17の左右両側にはフレーム部であるフレームパイプ部18の内端部が取り付けられている。なお、入力軸16は、トラクタのＰＴＯ軸にジョイント（図示せず）を介して接続される。 Further, the airframe 2 has a mission case portion 17 which is a shaft holding portion that rotatably holds the input shaft 16, and inner end portions of a frame pipe portion 18 which is a frame portion are provided on both left and right sides of the mission case portion 17. Is installed. The input shaft 16 is connected to the PTO shaft of the tractor via a joint (not shown).

そして、左側のフレームパイプ部18の外端部には、箱状の耕耘体支持部であるチェーンケース部19が取り付けられている。一方、右側のフレームパイプ部18の外端部には、板状の耕耘体支持部であるブラケット部20が取り付けられている。これら互いに離間対向するチェーンケース部19およびブラケット部20によって耕耘体３が回転可能に支持されている。なお、チェーンケース部19およびブラケット部20の各々には、側板部であるサイドカバー板10が固着されている。 A chain case portion 19 which is a box-shaped tiller support portion is attached to the outer end portion of the frame pipe portion 18 on the left side. On the other hand, a bracket portion 20 which is a plate-shaped tiller support portion is attached to the outer end portion of the frame pipe portion 18 on the right side. The tiller 3 is rotatably supported by the chain case portion 19 and the bracket portion 20 which are separated from each other and face each other. A side cover plate 10 which is a side plate portion is fixed to each of the chain case portion 19 and the bracket portion 20.

さらに、機体２は、耕耘体３の上方部を覆う耕耘カバー部21を有している。この耕耘カバー部21は、上方に凸の湾曲板状をなすカバー本体板22と、このカバー本体板22の左右方向両端部に固着されたカバー側板23とを有している。そして、カバー本体板22の後端部には、整地体４が軸５を中心として上下方向に回動可能に取り付けられている。 Further, the machine body 2 has a tillage cover portion 21 that covers an upper portion of the tillage body 3. The tillage cover portion 21 has a cover main body plate 22 having an upwardly convex curved plate shape, and a cover side plate 23 fixed to both ends of the cover main body plate 22 in the left-right direction. A ground leveling body 4 is attached to the rear end of the cover body plate 22 so as to be rotatable in the vertical direction about the shaft 5.

耕耘体３は、チェーンケース部19の下部およびブラケット部20の下部間に回転可能に架設された左右方向の耕耘軸26を有している。つまり、耕耘軸26の軸方向一端部である左端部がチェーンケース部19の下部にて回転可能に支持されかつ耕耘軸26の軸方向他端部である右端部がブラケット部20の下部にて回転可能に支持されている。この耕耘軸26は、入力軸16側からの動力を耕耘体３まで伝達する動力伝達手段（図示せず）によって所定方向に駆動回転する。この動力伝達手段は、例えばミッションケース部17内のギヤ、フレームパイプ部18内のシャフトおよびチェーンケース部19内のチェーン等によって構成されている。 The tillage body 3 has a tillage shaft 26 in the left-right direction rotatably erected between the lower portion of the chain case portion 19 and the lower portion of the bracket portion 20. That is, the left end portion of the tillage shaft 26 in the axial direction is rotatably supported by the lower part of the chain case portion 19, and the right end portion of the tillage shaft 26 in the axial direction is at the lower portion of the bracket portion 20. It is rotatably supported. The tillage shaft 26 is driven and rotated in a predetermined direction by a power transmission means (not shown) that transmits power from the input shaft 16 side to the tillage body 3. This power transmission means is composed of, for example, a gear in the transmission case portion 17, a shaft in the frame pipe portion 18, a chain in the chain case portion 19, and the like.

また、耕耘軸26が有する各爪ホルダー部27には、耕耘軸26と一体となって回転して耕耘作業をする耕耘爪28が脱着可能に取り付けられている。 Further, each claw holder portion 27 of the tilling shaft 26 is detachably attached to a tilling claw 28 that rotates integrally with the tilling shaft 26 to perform the tilling work.

整地体４は、耕耘カバー部21のカバー本体板22に軸５を介して回動可能に取り付けられた整地本体板31を有し、この整地本体板31の左右方向両端部には整地側板32が固着されている。また、整地本体板31の背面には突出板33が固着され、この突出板33と機体２の突出板34との間には接地圧調整手段35が架設されている。 The ground leveling body 4 has a ground leveling main body plate 31 rotatably attached to a cover main body plate 22 of the tillage cover portion 21 via a shaft 5, and the ground leveling side plates 32 are provided at both ends of the ground leveling main body plate 31 in the left-right direction. Is stuck. Further, a projecting plate 33 is fixed to the back surface of the ground leveling main body plate 31, and a ground pressure adjusting means 35 is installed between the projecting plate 33 and the projecting plate 34 of the machine body 2.

土寄せ手段６は、図５ないし図７にも示すように、機体２の耕耘カバー部21の左側のカバー側板23に取り付けられた支持体41と、この支持体41に取付具である固定ピン43で脱着可能に取り付けられこの支持体41によって支持された土寄せ体42とを有している。 As shown in FIGS. 5 to 7, the soil gathering means 6 includes a support 41 attached to the cover side plate 23 on the left side of the tillage cover portion 21 of the machine body 2, and a fixing pin 43 which is an attachment to the support 41. It has a soil gathering body 42 that is detachably attached and supported by this support 41.

なお、固定ピン43を取り外すと、土寄せ体42は、支持体41に対して前後方向の回動中心軸線Ｘを中心として上下方向に回動可能となり、かつ、支持体41に対して前後方向に摺動可能となる。つまり、固定ピン43を抜いた状態では、土寄せ体42は、支持体41によって回動可能でかつ前後移動可能に支持されている。 When the fixing pin 43 is removed, the soil gathering body 42 can rotate in the vertical direction with respect to the support 41 in the vertical direction about the center axis X, and in the front-rear direction with respect to the support 41. It becomes slidable. That is, in the state where the fixing pin 43 is pulled out, the soil gathering body 42 is supported by the support body 41 so as to be rotatable and movable back and forth.

そして、土寄せ作業をする土寄せ体42は、前方側を向いた表面である作業面（土寄せ面）42aによって耕耘体３側に圃場の土を寄せる下方側の作業状態と、作業面42aが上方側を向くように内側に傾いた上方側の非作業状態（格納状態）とに、選択的に切換可能となっている。 Then, the soil gathering body 42 for the soil gathering work has a working state on the lower side where the soil of the field is pulled toward the tiller 3 side by the work surface (soil gathering surface) 42a which is a surface facing the front side, and the work surface 42a is on the upper side. It is possible to selectively switch to the non-working state (retracted state) on the upper side, which is tilted inward so as to face.

ここで、支持体41は、土寄せ体42を支持する前後方向長手状の円筒状部51を有している。円筒状部51の前端部には、第１板53および第２板54を有するＬ字状の板部52が固設されている。円筒状部51の後端部には、左右方向の四角筒状の角筒状部56が直交状に固設され、この角筒状部56の先端部に取付板部57が固設されている。そして、板部52の第２板54と取付板部57とが、機体２の耕耘カバー部21の左側のカバー側板23の外面に取り付けられている。 Here, the support 41 has a cylindrical portion 51 that is longitudinally longitudinal in the front-rear direction that supports the soil gathering body 42. An L-shaped plate portion 52 having a first plate 53 and a second plate 54 is fixedly attached to the front end portion of the cylindrical portion 51. At the rear end of the cylindrical portion 51, a square tubular portion 56 in the left-right direction is fixed at right angles, and a mounting plate portion 57 is fixed at the tip of the square tubular portion 56. There is. Then, the second plate 54 of the plate portion 52 and the mounting plate portion 57 are attached to the outer surface of the cover side plate 23 on the left side of the tillage cover portion 21 of the machine body 2.

また、円筒状部51の長手方向中間部には、１つの作業用固定孔部61および１つの非作業用固定孔部62が上下に貫通して形成されている。なお、作業用固定孔部61は、非作業用固定孔部62の後方に位置している。 Further, in the intermediate portion in the longitudinal direction of the cylindrical portion 51, one working fixing hole portion 61 and one non-working fixing hole portion 62 are formed so as to penetrate vertically. The working fixing hole 61 is located behind the non-working fixing hole 62.

さらに、屈曲板部である板部52の第１板53には、土寄せ体42の作業状態時に土寄せ体42の位置決め係合部である位置決め係合突部80と係合する作業用係合部である作業用係合孔部63が形成され、かつ、土寄せ体42の非作業状態時に位置決め係合突部80と係合する非作業用係合部である非作業用係合孔部64が形成されている。 Further, the first plate 53 of the plate portion 52, which is a bent plate portion, has a working engaging portion that engages with the positioning engaging protrusion 80, which is the positioning engaging portion of the soil gathering body 42, when the soil gathering body 42 is in the working state. The working engaging hole 63 is formed, and the non-working engaging hole 64, which is the non-working engaging portion that engages with the positioning engaging protrusion 80 when the soil gathering body 42 is not working, is formed. It is formed.

作業用係合孔部63は、回動中心軸線Ｘを中心として対称に位置する上下１対で２個の作業用孔部分63aにて構成されている。なお、下の作業用孔部分63aは、上の作業用孔部分63aの真下に位置している。 The working engagement hole portion 63 is composed of two working hole portions 63a in a pair of upper and lower parts located symmetrically with respect to the rotation center axis X. The lower work hole portion 63a is located directly below the upper work hole portion 63a.

非作業用係合孔部64は、作業用孔部分63aの近傍において回動中心軸線Ｘを中心として対称に位置する上下１対で２個の非作業用孔部分64aにて構成されている。なお、上の非作業用孔部分64aは上の作業用孔部分63aの一方側近傍に位置し、下の非作業用孔部分64aは下の作業用孔部分63aの他方側近傍に位置している。 The non-working engagement hole portion 64 is composed of two non-working hole portions 64a in a pair of upper and lower parts located symmetrically with respect to the rotation center axis X in the vicinity of the working hole portion 63a. The upper non-working hole portion 64a is located near one side of the upper working hole portion 63a, and the lower non-working hole portion 64a is located near the other side of the lower working hole portion 63a. There is.

土寄せ体42は、支持体41に固定ピン43で脱着可能に取り付けられた第１取付部材71と、この第１取付部材に脱着ピン74によって上下調整可能に取り付けられた第２取付部材72と、この第２取付部材72の下端部に回転可能に設けられ圃場から受ける力で従動回転しつつ圃場の土を切削しながら耕耘体３側に寄せる皿形状（略皿形状を含む）の土寄せ部材であるサイドディスク73とを有している。 The soil gathering body 42 includes a first mounting member 71 detachably attached to the support 41 by a fixing pin 43, and a second mounting member 72 detachably attached to the first mounting member by a detachable pin 74. A dish-shaped (including substantially dish-shaped) soil gathering member that is rotatably provided at the lower end of the second mounting member 72 and is moved toward the tiller 3 side while cutting the soil in the field while being driven by the force received from the field. It has a certain side disk 73.

そして、第１取付部材71は、支持体41の円筒状部51内に一部が嵌入された前後方向長手状の円筒状部76を有している。円筒状部76の前端部には、上下方向の四角筒状の角筒状部77が直交状に固設され、この角筒状部77には複数の上下調整用孔78が形成されている。なお、角筒状部77の上端部77aは、円筒状部76の上端部76aよりも上方に位置している。 The first mounting member 71 has a cylindrical portion 76 that is longitudinally longitudinal in the front-rear direction and is partially fitted into the cylindrical portion 51 of the support 41. At the front end of the cylindrical portion 76, a square tubular portion 77 in the vertical direction is fixed at right angles, and a plurality of vertical adjustment holes 78 are formed in the square tubular portion 77. .. The upper end portion 77a of the square tubular portion 77 is located above the upper end portion 76a of the cylindrical portion 76.

また、円筒状部76の長手方向中間部における上側および下側には突出板部79が固設され、この各突出板部79には位置決めピン80aが固着されている。つまり、第１取付部材71は、支持体41の孔部63，64に係脱可能に挿入係合して第１取付部材71を支持体41に対して所望位置に位置決めする位置決め係合突部（位置決め係合部）80を有し、この位置決め係合突部80が上下１対で２本の位置決めピン80aにて構成されている。 Further, projecting plate portions 79 are fixedly provided on the upper side and the lower side of the cylindrical portion 76 in the intermediate portion in the longitudinal direction, and the positioning pin 80a is fixed to each of the projecting plate portions 79. That is, the first mounting member 71 is disengaged and engaged with the holes 63 and 64 of the support 41 to position the first mounting member 71 at a desired position with respect to the support 41. It has a (positioning engagement portion) 80, and the positioning engagement protrusion 80 is composed of two positioning pins 80a in a pair of upper and lower parts.

さらに、円筒状部76の後端部には、１つの作業用固定孔部81および１つの非作業用固定孔部82が形成されている。なお、作業用固定孔部81は、非作業用固定孔部82よりも後方で周方向に少しずれた位置に位置している。 Further, one working fixing hole 81 and one non-working fixing hole 82 are formed at the rear end of the cylindrical portion 76. The working fixing hole 81 is located behind the non-working fixing hole 82 and slightly offset in the circumferential direction.

第２取付部材72は、第１取付部材71の角筒状部77内に一部が嵌入された上下方向の四角筒状の角筒状部84を有し、この角筒状部84には複数の上下調整用孔85が形成されている。そして、選択した両上下調整用孔78，85に脱着ピン74を挿入することによって、第２取付部材72が第１取付部材71に取り付けられている。 The second mounting member 72 has a square tubular portion 84 in the vertical direction in which a part of the first mounting member 71 is fitted into the square tubular portion 77, and the square tubular portion 84 has a square tubular portion 84. A plurality of vertical adjustment holes 85 are formed. Then, the second mounting member 72 is mounted on the first mounting member 71 by inserting the detachable pin 74 into the selected both vertical adjustment holes 78 and 85.

また、図６に示すように、角筒状部84の下端部にはプレート部86の上端部が固着され、このプレート部86の下端部にはディスク支持部87が設けられ、このディスク支持部87によってサイドディスク73が回転可能に支持されている。 Further, as shown in FIG. 6, the upper end portion of the plate portion 86 is fixed to the lower end portion of the square tubular portion 84, and the disc support portion 87 is provided at the lower end portion of the plate portion 86. The side disc 73 is rotatably supported by the 87.

なお、ディスク支持部87は、例えばボス88、ベアリング89、止め輪90、シール91、支軸92、カバー93およびグリスニップル94を有している。また、プレート部86にはコ字枠95が取り付けられ、このコ字枠95にはグリスニップル94と対向するグリスガン用孔96が形成されている。 The disc support portion 87 has, for example, a boss 88, a bearing 89, a retaining ring 90, a seal 91, a support shaft 92, a cover 93, and a grease nipple 94. A U-shaped frame 95 is attached to the plate portion 86, and a grease gun hole 96 facing the grease nipple 94 is formed in the U-shaped frame 95.

サイドディスク73は、第２取付部材72のディスク支持部87のボス88にボルト97によって脱着可能に取り付けられている。サイドディスク73の外周部には、圃場の土を切削する切削刃部99が形成されている。 The side disc 73 is detachably attached to the boss 88 of the disc support portion 87 of the second mounting member 72 by a bolt 97. A cutting blade portion 99 for cutting the soil in the field is formed on the outer peripheral portion of the side disc 73.

また、サイドディスク73のうち、プレート部86と対向する側とは反対側の表面が作業面42aであり、この作業面42aによって圃場の土が耕耘体３側へ誘導案内される。なお、図１に示すように、作業時において、側面視でサイドディスク73は耕耘体３よりも前方に位置している。 Further, the surface of the side disc 73 on the side opposite to the side facing the plate portion 86 is the work surface 42a, and the soil in the field is guided and guided to the cultivated body 3 side by the work surface 42a. As shown in FIG. 1, the side disc 73 is located in front of the tiller 3 in the side view during the work.

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

耕耘整地作業を行う作業時には、図１および図２に示すように、土寄せ体42を作業状態に設定する。 At the time of the work of cultivating the ground, the soil gathering body 42 is set to the working state as shown in FIGS. 1 and 2.

すなわち、作業者は、まず、土寄せ体42の位置決め係合突部80の２本の位置決めピン80aを、支持体41の作業用係合孔部63の２個の作業用孔部分63aに挿入する。すると、土寄せ体42が支持体41に対して回動不能となって作業状態に位置決めされ、土寄せ体42の作業用固定孔部81と支持体41の作業用固定孔部61とが互いに一致する。このため、作業者は、両孔部61，81の位置合わせをする必要がない。 That is, the operator first inserts the two positioning pins 80a of the positioning engaging protrusion 80 of the earth gathering body 42 into the two working hole portions 63a of the working engaging hole portion 63 of the support 41. .. Then, the soil gathering body 42 becomes non-rotatable with respect to the support 41 and is positioned in the working state, and the working fixing hole portion 81 of the soil gathering body 42 and the working fixing hole portion 61 of the support body 41 coincide with each other. .. Therefore, the operator does not need to align the holes 61 and 81.

次いで、作業者は、互いに一致した両作業用固定孔部61，81に固定ピン43を挿入する。すると、土寄せ体42が支持体41に対して作業状態に固定される。 Next, the operator inserts the fixing pin 43 into the fixing holes 61 and 81 for both works that coincide with each other. Then, the soil gathering body 42 is fixed to the support 41 in the working state.

そして、この状態でトラクタを走行させると、耕耘体３が耕耘作業をし、その後方で整地体４が整地作業をする。 Then, when the tractor is run in this state, the tilling body 3 performs the tilling work, and the ground leveling body 4 performs the ground leveling work behind it.

また、農作業機１の左側端位置における耕耘体３の前方側では、作業状態の土寄せ体42のサイドディスク73が土寄せ作業をする。つまり、サイドディスク73が圃場から受ける力で所定方向に回転しながら圃場の土を切削し、この切削土が耕耘体３側へ案内されて耕耘爪28で耕耘砕土される。 Further, on the front side of the tiller 3 at the left end position of the agricultural work machine 1, the side disc 73 of the soil gathering body 42 in the working state performs the soil gathering work. That is, the side disk 73 cuts the soil in the field while rotating in a predetermined direction by the force received from the field, and the cut soil is guided to the tiller 3 side and cultivated and crushed by the tiller claw 28.

この作業時において、固定ピン43は、位置決め係合突部80と協同して、第１取付部材71の円筒状部76が支持体41の円筒状部51に対してサイドディスク73が圃場から受ける力に基づいて回転することを規制している。また、固定ピン43は、第１取付部材71の円筒状部76が支持体41の円筒状部51内から抜け出ないように、円筒状部51に対する円筒状部76の前後位置を固定している。 During this work, the fixing pin 43, in cooperation with the positioning engagement protrusion 80, receives the cylindrical portion 76 of the first mounting member 71 from the field with respect to the cylindrical portion 51 of the support 41. It regulates rotation based on force. Further, the fixing pin 43 fixes the front-rear position of the cylindrical portion 76 with respect to the cylindrical portion 51 so that the cylindrical portion 76 of the first mounting member 71 does not come out from the inside of the cylindrical portion 51 of the support 41. ..

なお、固定ピン43を抜いた場合には、第１取付部材71の円筒状部76を支持体41の円筒状部51内から全体を抜き出すことなく、円筒状部76を円筒状部51によって支持した状態のまま、土寄せ体42を作業状態および非作業状態に選択的に切り換えることができる。 When the fixing pin 43 is pulled out, the cylindrical portion 76 of the first mounting member 71 is supported by the cylindrical portion 51 without pulling out the entire cylindrical portion 76 of the support 41 from the inside of the cylindrical portion 51. The soil gathering body 42 can be selectively switched between the working state and the non-working state in the same state.

そして、作業終了後、農作業機１を運搬する場合や倉庫内へ格納する場合等の非作業時（格納時）には、図３および図４に示すように、土寄せ体42を作業状態から非作業状態に切り換える。 Then, after the work is completed, when the agricultural work machine 1 is transported or stored in the warehouse during non-work (when stored), as shown in FIGS. 3 and 4, the soil gathering body 42 is removed from the working state. Switch to working state.

すなわち、作業者は、固定ピン43を取り外してから、２本の位置決めピン80aを２個の作業用孔部分63aから抜いた後、土寄せ体42の円筒状部76が支持体41の円筒状部51内に挿入されて支持された状態のまま、土寄せ体42を回動中心軸線Ｘを中心として１８０度を超える角度（１８０度とは異なる、例えば２１５度）をもって外回りの方向（図４では反時計回り）へ回動させる。なお、内回りが可能な場合には、１８０度未満の回動角度となる。 That is, after the operator removes the fixing pin 43 and then pulls out the two positioning pins 80a from the two working hole portions 63a, the cylindrical portion 76 of the earth gathering body 42 becomes the cylindrical portion of the support 41. While being inserted into the 51 and supported, the earth gathering body 42 is rotated around the central axis X at an angle exceeding 180 degrees (different from 180 degrees, for example, 215 degrees) in the outward direction (counterclockwise in FIG. 4). Rotate clockwise). If the inner loop is possible, the rotation angle is less than 180 degrees.

続いて、作業者は、今度は、２本の位置決めピン80aを支持体41の非作業用係合孔部64の２個の非作業用孔部分64aに挿入する。すると、土寄せ体42が支持体41に対して回動不能となって非作業状態に位置決めされ、土寄せ体42の非作業用固定孔部82と支持体41の非作業用固定孔部62とが互いに一致する。このため、作業者は、両孔部62，82の位置合わせをする必要がない。 Subsequently, the operator inserts the two positioning pins 80a into the two non-working hole portions 64a of the non-working engaging hole portion 64 of the support 41. Then, the soil gathering body 42 becomes non-rotatable with respect to the support 41 and is positioned in a non-working state, and the non-working fixing hole portion 82 of the soil gathering body 42 and the non-working fixing hole portion 62 of the support body 41 are engaged. Match each other. Therefore, the operator does not need to align the holes 62 and 82.

次いで、作業者は、互いに一致した両非作業用固定孔部62，82に固定ピン43を挿入する。すると、土寄せ体42が支持体41に対して非作業状態に固定される。 The operator then inserts the fixing pin 43 into both non-working fixing holes 62 and 82 that coincide with each other. Then, the soil gathering body 42 is fixed to the support 41 in a non-working state.

そして、この非作業状態の土寄せ体42は、図４から明らかなとおり、その作業面42aが上方側、すなわち例えば左斜め上方を向くように、鉛直方向に対して農作業機１の中央側である内側に傾いた傾斜状（上向き傾斜状態）となっている。 Then, as is clear from FIG. 4, the soil gathering body 42 in the non-working state is on the central side of the agricultural work machine 1 with respect to the vertical direction so that the working surface 42a faces the upper side, that is, for example, diagonally upward to the left. It has an inwardly inclined shape (upward inclined state).

この際、土寄せ体42のサイドディスク73の上端部73aは、例えば機体２の耕耘カバー部21の左側のカバー側板23よりも内側に位置している。 At this time, the upper end portion 73a of the side disc 73 of the soil gathering body 42 is located inside, for example, the cover side plate 23 on the left side of the tillage cover portion 21 of the machine body 2.

そして、上記農作業機１によれば、土寄せ手段６の土寄せ体42は、耕耘体３側に土を寄せる作業状態と、作業面42aが上方側を向くように内側に傾いた傾斜状の非作業状態とに切換可能となっているため、例えば運搬時等の非作業時において、土寄せ体42を内側に傾けた傾斜状の非作業状態にすることで、安全性の向上を図ることができ、また、コンパクト化も図ることができ、トラクタからの後方視界も良好となる。 Then, according to the above-mentioned agricultural work machine 1, the soil gathering body 42 of the soil gathering means 6 is in a working state of gathering soil toward the tiller body 3 and a non-working inclined inward so that the work surface 42a faces upward. Since it is possible to switch between states, it is possible to improve safety by setting the soil gathering body 42 to an inclined non-working state that is tilted inward, for example, during non-working such as during transportation. In addition, the vehicle can be made compact, and the rear view from the tractor is also improved.

また、土寄せ体42が位置決め係合突部80を有し、支持体41がその位置決め係合突部80と係合可能な作業用係合孔部63および非作業用係合孔部64を有するため、土寄せ体42を容易に位置決めでき、土寄せ体42の状態を容易に切り換えることができる。 Further, the soil gathering body 42 has a positioning engaging protrusion 80, and the support 41 has a working engaging hole 63 and a non-working engaging hole 64 that can be engaged with the positioning engaging protrusion 80. Therefore, the soil gathering body 42 can be easily positioned, and the state of the soil gathering body 42 can be easily switched.

さらに、固定ピン43を土寄せ体42の作業用固定孔部81および支持体41の作業用固定孔部81に挿入することによって土寄せ体42を作業状態に容易に固定でき、また、固定ピン43を土寄せ体42の非作業用固定孔部82および支持体41の非作業用固定孔部82に挿入することによって土寄せ体42を非作業状態に容易に固定できる。 Further, by inserting the fixing pin 43 into the working fixing hole 81 of the soil gathering body 42 and the working fixing hole 81 of the support 41, the soil gathering body 42 can be easily fixed to the working state, and the fixing pin 43 can be fixed. The soil gathering body 42 can be easily fixed in the non-working state by inserting it into the non-working fixing hole portion 82 of the soil gathering body 42 and the non-working fixing hole portion 82 of the support 41.

次に、本発明の第２の実施の形態について図８および図９を参照して説明する。 Next, a second embodiment of the present invention will be described with reference to FIGS. 8 and 9.

図８および図９に示すように、第１取付部材71の角筒状部77の上端部77aが円筒状部76の上端部76aと同じ高さ（略同じ高さを含む）に位置する構成でもよい。 As shown in FIGS. 8 and 9, the upper end portion 77a of the square tubular portion 77 of the first mounting member 71 is located at the same height as the upper end portion 76a of the cylindrical portion 76 (including substantially the same height). But it may be.

そして、この構成では、土寄せ体42の非作業状態時には、角筒状部77の全体が支持体41の前方に位置した状態となり、土寄せ体42の外側方への突出量が減少するため、第１の実施の形態に比べて、安全性の向上およびコンパクト化をより一層図ることができる。 In this configuration, when the soil gathering body 42 is not working, the entire square tubular portion 77 is located in front of the support 41, and the amount of protrusion of the soil gathering body 42 to the outside is reduced. Compared with the first embodiment, the safety can be further improved and the compactness can be further improved.

次に、本発明の第３の実施の形態について図１０および図１１を参照して説明する。 Next, a third embodiment of the present invention will be described with reference to FIGS. 10 and 11.

図１０および図１１に示すように、作業状態と非作業状態とで土寄せ体42の支持体41に対する前後位置が異なる構成でもよい。すなわち例えば、非作業状態の土寄せ体42が、作業状態の土寄せ体42よりも後方に位置する構成でもよい。 As shown in FIGS. 10 and 11, the front-rear position of the soil gathering body 42 with respect to the support 41 may be different between the working state and the non-working state. That is, for example, the soil gathering body 42 in the non-working state may be located behind the soil gathering body 42 in the working state.

また、この支持体41は、それぞれ別個の２つの固定孔部61，62を有しておらず、作業用および非作業用を兼ねた１つの固定孔部101を有している。さらに、この支持体41の作業用係合孔部63は、２つの作業用孔部分63aからなるものではなく、１つの作業用孔部分63aのみからなるものである。同様に、支持体41の非作業用係合孔部64は、２つの非作業用孔部分64aからなるものではなく、１つの非作業用孔部分64aのみからなるものである。 Further, the support 41 does not have two separate fixing holes 61 and 62, but has one fixing hole 101 for both work and non-work. Further, the working engaging hole portion 63 of the support 41 is not composed of two working hole portions 63a, but is composed of only one working hole portion 63a. Similarly, the non-working engagement hole portion 64 of the support 41 is not composed of two non-working hole portions 64a, but is composed of only one non-working hole portion 64a.

さらに、第１取付部材71の上下２つの突出板部79は、前後に位置が異なっており、これら前後に位置が異なる各突出板部79に位置決めピン80aが固着されている。つまり、土寄せ体42は、前後２本の位置決めピン80aを有している。また、支持体41の円筒状部51の上部には、後側の位置決めピン80aを逃して土寄せ体42を作業状態よりも後方の非作業状態に設定可能にするための切欠部100が形成されている。 Further, the two upper and lower projecting plate portions 79 of the first mounting member 71 have different positions in the front and rear, and the positioning pin 80a is fixed to each of the protruding plate portions 79 having different positions in the front and rear. That is, the soil gathering body 42 has two front and rear positioning pins 80a. Further, a notch 100 is formed in the upper part of the cylindrical portion 51 of the support 41 so that the positioning pin 80a on the rear side can be missed and the soil gathering body 42 can be set to the non-working state behind the working state. ing.

そして、この構成では、土寄せ体42の非作業状態時には、土寄せ体42の作業状態時に比べて土寄せ体42の前方への突出量が減少するため、第１の実施の形態に比べて、安全性の向上およびコンパクト化をより一層図ることができる。 In this configuration, when the soil gathering body 42 is not working, the amount of protrusion of the soil gathering body 42 to the front is reduced as compared with the working state of the soil gathering body 42, so that the safety is improved as compared with the first embodiment. Can be further improved and made more compact.

次に、本発明の第４の実施の形態について図１２および図１３を参照して説明する。 Next, a fourth embodiment of the present invention will be described with reference to FIGS. 12 and 13.

この第４の実施の形態に係る農作業機１は、上述した第３の実施の形態において、位置決め係合突部80を１本の位置決めピン80aにて構成したものである。このため、支持体41の円筒状部51には板部52とは別の突出板部102が固設され、この突出板部102に１つの非作業用孔部分64aのみからなる非作業用係合孔部64が形成されている。 In the agricultural work machine 1 according to the fourth embodiment, the positioning engagement protrusion 80 is configured by one positioning pin 80a in the third embodiment described above. Therefore, a protruding plate portion 102 different from the plate portion 52 is fixedly attached to the cylindrical portion 51 of the support 41, and a non-working clerk consisting of only one non-working hole portion 64a in the protruding plate portion 102. A perforated portion 64 is formed.

そして、この構成でも、第３の実施の形態と同様、安全性の向上およびコンパクト化をより一層図ることができる。 Further, even in this configuration, the safety can be further improved and the compactness can be further improved as in the third embodiment.

次に、本発明の第５の実施の形態について図１４および図１５を参照して説明する。 Next, a fifth embodiment of the present invention will be described with reference to FIGS. 14 and 15.

図１４および図１５に示すように、位置決め用の係合突部80および係合孔部63，64に代えて、多角形状、例えば正八角形状の位置決め用板部106および位置決め用孔部107を有する構成でもよい。 As shown in FIGS. 14 and 15, instead of the engaging protrusion 80 and the engaging holes 63 and 64 for positioning, a polygonal, for example, a regular octagonal positioning plate 106 and a positioning hole 107 are used. It may have a structure.

すなわち、土寄せ体42の第１取付部材71の円筒状部76の外周には、環状で正八角形状の位置決め用板部（一方の多角形嵌合部）106が固設されている。また、支持体41の板部52の第１板53には、位置決め用板部106と嵌脱可能に嵌合する正八角形状の位置決め用孔部（他方の多角形嵌合部）107が形成されている。この位置決め用孔部107は、円筒状部51の前端部に臨んでおり、その中心点Ｐが回動中心軸線Ｘ上に位置している。 That is, an annular and regular octagonal positioning plate portion (one polygonal fitting portion) 106 is fixedly attached to the outer periphery of the cylindrical portion 76 of the first mounting member 71 of the earth gathering body 42. Further, in the first plate 53 of the plate portion 52 of the support 41, a regular octagonal positioning hole portion (the other polygonal fitting portion) 107 that fits and detachably fits with the positioning plate portion 106 is formed. Has been done. The positioning hole portion 107 faces the front end portion of the cylindrical portion 51, and its center point P is located on the rotation center axis X.

そして、この構成でも、第１の実施の形態と同様、非作業時に土寄せ体42を内側に傾けた傾斜状の非作業状態に設定できるため、安全性の向上およびコンパクト化を図ることができる。 Further, in this configuration as well, as in the first embodiment, the soil gathering body 42 can be set to an inclined non-working state in which the soil gathering body 42 is tilted inward during non-working, so that safety can be improved and compactness can be achieved.

次に、本発明の第６の実施の形態について図１６ないし図１９を参照して説明する。 Next, a sixth embodiment of the present invention will be described with reference to FIGS. 16 to 19.

第６の実施の形態に係る農作業機１は、耕耘体３の耕耘軸26への夾雑物（稈や草等）の巻き付きを防止する左右方向長手状の線状手段である巻付防止線状部材111を備えている。 The agricultural work machine 1 according to the sixth embodiment is a winding prevention linear means which is a laterally longitudinal linear means for preventing the wrapping of impurities (culms, grass, etc.) around the tillage shaft 26 of the tillage body 3. It includes a member 111.

具体的には、この農作業機１では、耕耘体３の耕耘軸26は、左右方向に延びる中空状で丸軸状の軸本体部（パイプ部）26aと、この軸本体部26aの外周面に突設され耕耘爪28を保持する複数の爪ホルダー部26b（27）と、軸本体部26aの左右方向両端部の外周面に突設された対をなす突出板部26cとを有している。複数の爪ホルダー部26bは、軸本体部26aの外周面において、軸本体部26aの一端側から他端側にわたって軸本体部26aを中心とする螺旋方向に互いに間隔をおいて並んでおり、この各爪ホルダー部26bに耕耘爪28がボルト112およびナット113によって脱着可能に取り付けられている。なお、耕耘軸26の軸方向一端部である左端部のスプライン軸部24がチェーンケース部19にボス部25を介して回転可能に取り付けられ、かつ、耕耘軸26の軸方向他端部である右端部の右軸部がブラケット部20にボス部25を介して回転可能に取り付けられている。 Specifically, in the agricultural work machine 1, the tilling shaft 26 of the tilling body 3 is formed on a hollow and round shaft main body (pipe portion) 26a extending in the left-right direction and an outer peripheral surface of the shaft main body 26a. It has a plurality of claw holders 26b (27) that are projected to hold the tilling claws 28, and a pair of protruding plate portions 26c that are projected on the outer peripheral surfaces of both ends of the shaft body 26a in the left-right direction. .. The plurality of claw holder portions 26b are arranged on the outer peripheral surface of the shaft body portion 26a from one end side to the other end side of the shaft body portion 26a at intervals in a spiral direction centered on the shaft body portion 26a. Tillage claws 28 are detachably attached to each claw holder portion 26b by bolts 112 and nuts 113. The spline shaft portion 24 at the left end portion, which is one end portion in the axial direction of the tillage shaft 26, is rotatably attached to the chain case portion 19 via the boss portion 25, and is the other end portion in the axial direction of the tillage shaft 26. The right shaft portion at the right end is rotatably attached to the bracket portion 20 via the boss portion 25.

そして、巻付防止線状部材111は、各耕耘爪28を避けながら耕耘軸26の軸方向（左右方向）に沿って位置（耕耘軸26の軸方向に略沿って位置する場合を含む）するように配設されている。なお、本実施の形態では、巻付防止線状部材111は、複数本、例えば２本だけ、耕耘軸26に設けられているが、２本には限定されず、３本以上でもよく、或いは１本でもよい。また、巻付防止線状部材111は、例えば耕耘軸26よりも少し長い、可撓性を有する金属製の線材からなるものである。 Then, the wrapping prevention linear member 111 is positioned along the axial direction (left-right direction) of the tillage shaft 26 (including the case where it is positioned substantially along the axial direction of the tillage shaft 26) while avoiding each tillage claw 28. It is arranged so as to. In the present embodiment, a plurality of winding prevention linear members 111, for example, only two, are provided on the tillage shaft 26, but the number is not limited to two, and may be three or more, or may be three or more. One may be used. Further, the wrapping prevention linear member 111 is made of, for example, a flexible metal wire rod slightly longer than the tillage shaft 26.

各巻付防止線状部材111は、線状部材取付手段115を介して、耕耘体３の耕耘軸26に脱着可能に取り付けられている。この線状部材取付手段115は、図１９に示すように、線状部材用孔116およびボルト用孔117が形成された取付板118と、線状部材用孔119およびボルト用孔120が形成された振止板121と、取付板118を耕耘軸26の突出板部26cに取り付けるための板取付ボルト122およびナット部材123と、巻付防止線状部材111を取付板118に取り付けるためのナット124（図１９上、左から右へ順に124a，124b，124c，124d，124e）とを有している。なお、振止板121は、ボルト112およびナット113によって耕耘爪28とともに爪ホルダー部26bに取り付けられている。 Each winding prevention linear member 111 is detachably attached to the tillage shaft 26 of the tillage body 3 via the linear member attachment means 115. As shown in FIG. 19, the linear member mounting means 115 is formed with a mounting plate 118 on which the linear member hole 116 and the bolt hole 117 are formed, and a linear member hole 119 and a bolt hole 120. The anti-vibration plate 121, the plate mounting bolt 122 and the nut member 123 for attaching the mounting plate 118 to the protruding plate portion 26c of the tillage shaft 26, and the nut 124 for attaching the winding prevention linear member 111 to the mounting plate 118. (In FIG. 19, from left to right, 124a, 124b, 124c, 124d, 124e). The anti-vibration plate 121 is attached to the claw holder portion 26b together with the tilling claw 28 by bolts 112 and nuts 113.

また、ナット部材123は、図１８に示すように、板取付ボルト122が螺合された２個のねじ孔126を有する板状のナット部127と、このナット部127に固設された夾雑物切断用の刃部128とにて構成されている。なお、この刃部128は、耕耘軸26とともに回転して夾雑物を切断することによって、ボス部25の周囲に草等の夾雑物が絡み付くのを防止する。 Further, as shown in FIG. 18, the nut member 123 includes a plate-shaped nut portion 127 having two screw holes 126 into which plate mounting bolts 122 are screwed, and impurities fixed to the nut portion 127. It is composed of a cutting blade 128. The blade portion 128 rotates together with the tillage shaft 26 to cut impurities, thereby preventing impurities such as grass from being entangled around the boss portion 25.

そして、耕耘軸26の突出板部26cには板取付ボルト122およびナット部材123によって取付板118が取り付けられ、この取付板118には巻付防止線状部材111の端部がナット124によって取り付けられている。なお、巻付防止線状部材111の端部の外周面にはねじ溝129が形成され、このねじ溝129にナット124が螺合されている。複数個のナット124のうちナット124bのみが巻付防止線状部材111に溶接によって固着されている（図１９参照）。なお、ねじ溝129の部分およびナット124bに代えて、ボルトを巻付防止線状部材111の端部に溶接等で固着するようにしてもよい。 Then, the mounting plate 118 is attached to the protruding plate portion 26c of the tillage shaft 26 by the plate mounting bolt 122 and the nut member 123, and the end portion of the winding prevention linear member 111 is attached to the mounting plate 118 by the nut 124. ing. A thread groove 129 is formed on the outer peripheral surface of the end portion of the winding prevention linear member 111, and a nut 124 is screwed into the thread groove 129. Of the plurality of nuts 124, only the nut 124b is fixed to the winding prevention linear member 111 by welding (see FIG. 19). Instead of the screw groove 129 and the nut 124b, a bolt may be fixed to the end of the winding prevention linear member 111 by welding or the like.

ここで、図１７に示すように、平面視で、土寄せ体42のサイドディスク73の作用ライン（ディスク作用ライン）Ｌと、耕耘軸26の軸本体部26aの前端との交点Ｐ１が、最外端の爪ホルダー部26bよりも内側に位置している。また、平面視で、土寄せ体42のサイドディスク73の作用ラインＬと、最前端に位置した状態の巻付防止線状部材111の前端との交点Ｐ２が、当該巻付防止線状部材111の端縁111aよりも内側に位置している。 Here, as shown in FIG. 17, in a plan view, the intersection P1 between the action line (disc action line) L of the side disk 73 of the soil gathering body 42 and the front end of the shaft body portion 26a of the tillage shaft 26 is the outermost point. It is located inside the claw holder part 26b at the end. Further, in a plan view, the intersection P2 between the action line L of the side disk 73 of the soil gathering body 42 and the front end of the wrapping prevention linear member 111 located at the foremost end is the wrapping prevention linear member 111. It is located inside the edge 111a.

なお、作用ラインＬは、作業状態の土寄せ体42のサイドディスク73の外周端と圃場面（地面）Ｈとの２つの交点Ａ、Ｂを結んで延長した線であり、平面視で後端ほど内側に位置するように前後方向に対して所定傾斜α（例えば２５度）をもって傾斜している。 The action line L is a line extending by connecting two intersections A and B between the outer peripheral end of the side disk 73 of the soil gathering body 42 in the working state and the field scene (ground) H, and the rear end in a plan view. It is tilted with a predetermined tilt α (for example, 25 degrees) with respect to the front-rear direction so as to be located inside.

そして、この農作業機１によれば、安全性の向上およびコンパクト化を図ることができるばかりでなく、平面視でサイドディスク73の作用ラインＬと軸本体部26aとの交点Ｐ１が最外端の爪ホルダー部26bよりも内側に位置するため、サイドディスク73によって移動した土を耕耘爪28で確実に耕耘でき、また、平面視でサイドディスク73の作用ラインＬと最前端に位置した状態の巻付防止線状部材111との交点Ｐ２が当該巻付防止線状部材111の端縁111aよりも内側に位置するため、サイドディスク73によって夾雑物が内側に移動しても巻付防止線状部材111で夾雑物の巻き付きを確実に防止できる。 According to this agricultural work machine 1, not only can safety be improved and compactness be achieved, but also the intersection P1 between the action line L of the side disk 73 and the shaft body portion 26a is the outermost end in a plan view. Since it is located inside the claw holder portion 26b, the soil moved by the side disc 73 can be cultivated reliably with the tilling claw 28, and the winding is located at the front end with the action line L of the side disc 73 in a plan view. Since the intersection P2 with the anti-wrapping linear member 111 is located inside the edge 111a of the anti-wrapping linear member 111, the anti-wrapping linear member even if the contaminants are moved inward by the side disc 73. With 111, the wrapping of impurities can be reliably prevented.

なお、上記したいずれの実施の形態においても、農作業機１は、左側端部のみに土寄せ手段６を有する構成には限定されず、例えば右側端部のみに土寄せ手段６を有する構成や、左右の両側端部に土寄せ手段６を有する構成でもよい。 In any of the above embodiments, the agricultural work machine 1 is not limited to the configuration in which the soil gathering means 6 is provided only on the left end portion, for example, the configuration having the soil gathering means 6 only on the right end portion, or the left and right ends. It may be configured to have the soil gathering means 6 at both end ends.

また、例えば回り止め用の位置決めピンを支持体41に設け、その位置決めピンと係合する位置決め用の係合孔部（作業用係合孔部および非作業用係合孔部）を土寄せ体42を設けた構成等でもよい。 Further, for example, a positioning pin for preventing rotation is provided on the support 41, and an engaging hole for positioning (working engaging hole and non-working engaging hole) that engages with the positioning pin is provided on the support body 42. The provided configuration or the like may be used.

なお、本発明のいくつかの実施の形態およびその変形例について説明したが、本発明の要旨を逸脱しない範囲で、前記各実施の形態および各変形例を適宜組み合わせることも可能である。 Although some embodiments of the present invention and variations thereof have been described, it is also possible to appropriately combine the embodiments and modifications thereof without departing from the gist of the present invention.

１農作業機
３耕耘体
４整地体
６土寄せ手段
26a 軸本体部
26b 爪ホルダー部
28 耕耘爪
41 支持体
42 土寄せ体
42a 作業面
43 固定ピン
61，81 作業用固定孔部
62，82 非作業用固定孔部
63 作業用係合部である作業用係合孔部
63a 作業用孔部分
64 非作業用係合部である非作業用係合孔部
64a 非作業用孔部分
73 サイドディスク
80 位置決め係合部である位置決め係合突部
80a 位置決めピン
111 巻付防止線状部材
Ｌ作用ライン
Ｐ１，Ｐ２交点 1 Agricultural work machine 3 Tillage body 4 Ground leveling body 6 Earth gathering means
26a Shaft body
26b Claw holder
28 Tillage claws
41 Support
42 Earth gathering body
42a work surface
43 Fixing pin
61, 81 Work fixing holes
62, 82 Non-working fixing holes
63 Work engagement hole, which is a work engagement part
63a Work hole part
64 Non-working engaging hole, which is a non-working engaging part
64a Non-working hole part
73 Side disc
80 Positioning engagement protrusion, which is the positioning engagement part
80a positioning pin
111 Winding prevention linear member L Action line P1, P2 intersection

Claims

A tiller body for tilling work and
A ground leveling body that performs ground leveling work behind this tillage body,
Provided with a soil gathering means for pulling soil to the tiller side,
The soil gathering means
With a longitudinal support in the anteroposterior direction,
It is supported by this support and has a soil gathering body that can rotate in the vertical direction about the center axis of rotation in the front-rear direction with respect to the support.
The earthing up body, by rotation around the longitudinal direction of the rotational axis line, a working state gather dirt on the tilling side by the working surface, the working surface with respect to the vertical direction so as to face obliquely upward agricultural machine, characterized in that has a switchable to sloped and non-working tilted inwardly a central side of the agricultural machine.

When switching the soil gathering body from either the working state or the non-working state to either one, the soil gathering body is characterized by rotating around the rotation center axis in the front-rear direction at an angle different from 180 degrees. The agricultural work machine according to claim 1.

The soil gathering body has a positioning engagement portion and has a positioning engagement portion.
The support is
A work engaging portion that engages with the positioning engaging portion during the working state of the soil gathering body,
The agricultural work machine according to claim 1 or 2, further comprising a non-working engaging portion that engages with the positioning engaging portion when the soil gathering body is in a non-working state.

The positioning engagement portion is composed of a pair of upper and lower positioning pins.
The work engaging part is composed of a pair of upper and lower work holes.
The agricultural work machine according to claim 3, wherein the non-working engaging portion is composed of a pair of upper and lower non-working hole portions.

Each of the soil gathering body and the support has a working fixing hole and a non-working fixing hole.
During the working state of the soil gathering body, a fixing pin is inserted into the working fixing hole portion of the soil gathering body and the working fixing hole portion of the support body.
Claims 1 to 4 are characterized in that, when the soil gathering body is in a non-working state, the fixing pin is inserted into the non-working fixing hole portion of the soil gathering body and the non-working fixing hole portion of the support. Agricultural work machine described in any one of.

The agricultural work machine according to any one of claims 1 to 5, wherein the soil gathering body has a side disk that pulls the soil toward the tiller side while cutting the soil.

The cultivated body is
A shaft-shaped shaft body that extends in the left-right direction,
It has a plurality of claw holders that are projected from the shaft body and hold the tillage claws.
The agricultural work according to any one of claims 1 to 6, wherein the intersection of the action line of the soil gathering body and the shaft main body portion is located inside the claw holder portion at the outermost end in a plan view. Machine.

The cultivated body has a wrapping prevention linear member,
In a plan view, the intersection of the action line of the soil gathering body and the wrapping prevention linear member located at the foremost end is located inside the edge of the wrapping prevention linear member. The agricultural work machine according to any one of claims 1 to 7.