JP5566073B2 - Agricultural machine - Google Patents

Agricultural machine Download PDF

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JP5566073B2
JP5566073B2 JP2009231412A JP2009231412A JP5566073B2 JP 5566073 B2 JP5566073 B2 JP 5566073B2 JP 2009231412 A JP2009231412 A JP 2009231412A JP 2009231412 A JP2009231412 A JP 2009231412A JP 5566073 B2 JP5566073 B2 JP 5566073B2
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soil
work
support member
agricultural
rolling wheel
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JP2011078330A (en
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俊朗 池田
諭 桑原
一貴 小林
徹 江原
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松山株式会社
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Description

本発明は、作業者の負担を軽減できる農作業機に関する。   The present invention relates to an agricultural machine that can reduce a burden on an operator.

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、トラクタ等の走行体の後部に連結される作業機本体と、この作業機本体に回転可能に設けられ圃場側から受ける力で従動回転するカゴ形状の転圧輪とを備えている。また、転圧輪は、転圧作業をする複数の作業棒と、これら複数の作業棒を支持する略円形状の複数の支持部材とを有している。   This conventional farm work machine includes a work machine main body connected to the rear portion of a traveling body such as a tractor, and a cage-shaped rolling wheel that is rotatably provided on the work machine main body and is rotated by a force received from the field side. I have. Further, the rolling wheel has a plurality of work bars that perform the rolling work and a plurality of substantially circular support members that support the plurality of work bars.

特開2003−325004号公報(図1)JP2003-325004A (FIG. 1)

しかしながら、上記従来の農作業機では、例えば圃場の水分や土質等によっては、転圧輪の作業棒に土が付着するため、この付着した土を作業者が手作業で落とさなければならない。   However, in the conventional agricultural machine described above, for example, depending on moisture or soil quality in the field, the soil adheres to the working rod of the rolling wheel, so the operator must manually drop the adhered soil.

本発明は、このような点に鑑みなされたもので、作業者の負担を軽減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 reduce a worker's burden.

請求項1記載の農作業機は、作業機本体と、この作業機本体に回転可能に設けられ、複数の作業棒およびこれら複数の作業棒を支持する支持部材を有する転圧輪と、弾性復元作用により土を叩き落とすように、前記作業棒に付着した土を落とす弾性変形可能な土落とし体とを備え、前記土落とし体は、左右方向長手状で、前記転圧輪の上方にこの転圧輪の軸方向に沿って配設され、側面視でその下部が互いに隣り合う前記作業棒間に挿入されて前記支持部材と重なり合うように鉛直面に沿って位置する、農作業機であって、前記土落とし体は、回転する前記転圧輪の作業棒にて回転方向前方側へ押されてく字状になるまで弾性変形した後、その作業棒から離れると、弾性復元力で元の平面形状に復帰して次の作業棒に衝突するものである。 The agricultural machine according to claim 1 is a work machine body, a rolling wheel provided rotatably on the work machine body, and having a plurality of work bars and a support member for supporting the work bars, and an elastic restoring action. And an elastically deformable soil drop body that drops the soil attached to the working rod so as to knock down the soil, and the soil drop body has a longitudinal shape in the left-right direction, and this rolling pressure is above the rolling wheel. Agricultural work machine disposed along the axial direction of the wheel and positioned along the vertical plane so that the lower part thereof is inserted between the work bars adjacent to each other in a side view and overlaps the support member, The earth dropping body is elastically deformed until it is pushed in the direction of rotation by the working rod of the rotating rolling wheel until it becomes a square shape. It will return and collide with the next work bar .

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、作業機本体は、被取付部を有し、土落とし体は、前記被取付部に上下位置調整可能に取り付けられ、前記土落とし体の前記被取付部に対する上下位置調整により、前記土落とし体と作業棒との接触圧を調整することが可能となっているものである。 The farm machine according to claim 2 is the farm machine according to claim 1, wherein the work machine main body has a mounted portion, and the soil dropping body is attached to the mounted portion so that the vertical position can be adjusted , By adjusting the vertical position of the dropped body with respect to the attached portion, it is possible to adjust the contact pressure between the soil dropping body and the work bar .

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、土落とし体は、作業棒と接触する作用状態および前記作業棒と接触しない非作用状態に選択的に切り換え可能となっているものである。   The agricultural machine according to claim 3 is the agricultural machine according to claim 1 or 2, wherein the soil dropping body can be selectively switched between an operating state in contact with the work bar and a non-operating state in which the work bar does not contact. It is what.

請求項4記載の農作業機は、請求項1ないし3のいずれか一記載の農作業機において、土落とし体は、支持部材が通過する凹部を有するものである。 Agricultural machine according to claim 4, wherein, in the claims 1 to agricultural machine according to one or more described 3, soil dropped body is one that has a recess in which the supporting support member passes.

請求項5記載の農作業機は、請求項1ないし3のいずれか一記載の農作業機において、土落とし体は、支持部材が接触する支持部材接触板部を有する弾性板にて構成され、前記弾性板のうちこの弾性板に形成された対をなす切れ目間の部分が、前記支持部材接触板部となっているものである。 Agricultural machine according to claim 5, wherein, in the claims 1 to agricultural machine according to one or more described 3, soil dropped body is composed of an elastic plate having a support member contacting plate portion supporting support member is in contact, wherein Of the elastic plate, a portion between the cuts forming a pair formed on the elastic plate is the support member contact plate portion.

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、土落とし体は、一体に形成された弾性変形可能な1枚の弾性板にて構成されているものである。   The agricultural machine according to claim 6 is the agricultural machine according to any one of claims 1 to 5, wherein the earth dropping body is constituted by a single elastic plate that is integrally formed and elastically deformable. It is.

請求項7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、土落とし体は、それぞれ別体に形成された弾性変形可能な複数枚の弾性板にて構成されているものである。   The agricultural machine according to claim 7 is the agricultural machine according to any one of claims 1 to 5, wherein the soil drop body is configured by a plurality of elastically deformable elastic plates formed separately from each other. It is what.

請求項1に係る発明によれば、転圧輪の作業棒に付着した土を落とす弾性変形可能な土落とし体を備えるため、転圧輪の作業棒に付着した土を作業者が手作業で落とす必要がなく、作業者の負担を軽減できる。   According to the first aspect of the present invention, since the elastically deformable soil drop body for dropping the soil attached to the working rod of the rolling wheel is provided, the operator manually removes the soil attached to the working rod of the rolling wheel. There is no need to drop, and the burden on the operator can be reduced.

請求項2に係る発明によれば、土落とし体は作業機本体の被取付部に上下位置調整可能に取り付けられているため、土落とし体の上下位置を適切に調整できる。   According to the second aspect of the present invention, since the soil drop body is attached to the mounted portion of the work machine body so that the vertical position can be adjusted, the vertical position of the soil drop body can be adjusted appropriately.

請求項3に係る発明によれば、土落とし体は作業棒と接触する作用状態および作業棒と接触しない非作用状態に選択的に切り換え可能となっているため、土落とし体の状態を適切に切り換えることができる。   According to the third aspect of the invention, since the soil drop body can be selectively switched between the working state in contact with the work bar and the non-working state in contact with the work bar, the state of the soil drop body is appropriately set. Can be switched.

請求項4に係る発明によれば、土落とし体は支持部材が通過する凹部を有するため、凹部を有しない場合等に比べて、土落とし体にて土を効率良く落とすことができる。   According to the invention which concerns on Claim 4, since the soil drop body has the recessed part which a support member passes, soil can be efficiently dropped with a soil drop body compared with the case where it does not have a recessed part.

請求項5に係る発明によれば、土落とし体は支持部材が接触する支持部材接触板部を有する弾性板にて構成され、弾性板のうちこの弾性板に形成された対をなす切れ目間の部分が支持部材接触板部となっているため、作業棒に付着した土を効率良く落とすことができるばかりでなく、支持部材に付着した土も落とすことができる。   According to the invention which concerns on Claim 5, the earth dropping body is comprised with the elastic board which has a supporting member contact board part which a supporting member contacts, and between the cut | interruptions which make the pair formed in this elastic board among elastic boards. Since the portion is the support member contact plate portion, not only the soil attached to the work bar can be efficiently dropped, but also the soil attached to the support member can be dropped.

請求項6に係る発明によれば、土落とし体は一体に形成された弾性変形可能な1枚の弾性板にて構成されているため、複数枚の弾性板にて構成された場合等に比べて、部品点数が少なく、構成が簡単である。   According to the invention of claim 6, since the earth dropping body is composed of one elastic plate that is integrally formed and can be elastically deformed, compared to a case where it is composed of a plurality of elastic plates. Therefore, the number of parts is small and the configuration is simple.

請求項7に係る発明によれば、土落とし体はそれぞれ別体に形成された弾性変形可能な複数枚の弾性板にて構成されているため、例えば弾性板が破損した場合等に、土落とし体全体を交換することなく、破損した弾性板のみを交換でき、土落とし体を部分的に直すことができる。   According to the invention of claim 7, since the soil drop body is composed of a plurality of elastically deformable elastic plates formed separately from each other, for example, when the elastic plate is damaged, etc. Without replacing the entire body, only the damaged elastic plate can be replaced, and the soil drop body can be partially repaired.

本発明の一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 working machine which concerns on one embodiment of this invention. 同上農作業機の背面図である。It is a rear view of a farm work machine same as the above. 同上農作業機の転圧輪の背面視斜視図である。It is a rear view perspective view of the rolling wheel of an agricultural working machine same as the above. 同上農作業機の土落とし体の側面図である。It is a side view of the soil removal body of an agricultural working machine same as the above. 同上土落とし体の背面図である。It is a rear view of a soil dropping body same as the above. 同上土落とし体を上限位置に設定した状態を示す側面図である。It is a side view which shows the state which set the soil dropping body same as the above to the upper limit position. 同上土落とし体を非作用状態に設定した状態を示す側面図である。It is a side view which shows the state which set the soil dropping body same as the above to the non-operation state. 同上土落とし体の作用説明図である。It is operation | movement explanatory drawing of a soil dropping body same as the above. 図8に続く作用説明図である。FIG. 9 is an operation explanatory diagram following FIG. 8. 土落とし体を取り外した場合の説明図である。It is explanatory drawing at the time of removing a soil drop body. 本発明の他の実施の形態に係る農作業機の土落とし体の背面図である。It is a rear view of the soil removal body of the agricultural working machine which concerns on other embodiment of this invention. 同上土落とし体の作用説明図である。It is operation | movement explanatory drawing of a soil dropping body same as the above. 本発明のさらに他の実施の形態に係る農作業機の土落とし体の背面図である。It is a rear view of the soil removal body of the agricultural working machine which concerns on 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の土落とし体の背面図である。It is a rear view of the soil removal body of the agricultural working machine which concerns on other embodiment of this invention.

本発明の一実施の形態を図面を参照して説明する。   An embodiment of the present invention will be described with reference to the drawings.

図1および図2において、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、トラクタの走行により圃場を前方(進行方向)に向って移動しながら耕耘整地作業等を行うものである。   1 and 2, reference numeral 1 denotes an agricultural machine. The agricultural machine 1 is connected to a rear portion of a tractor (not shown), which is a traveling vehicle, for example, and is directed forward (traveling direction) by moving the tractor. Tillage leveling work etc. while moving.

農作業機1は、図1および図2に示されるように、トラクタの後部の3点リンクヒッチ部(作業機昇降支持装置)に連結された作業機本体2を備えている。   As shown in FIGS. 1 and 2, the farm work machine 1 includes a work machine main body 2 connected to a three-point link hitch part (work machine lifting support device) at the rear of the tractor.

作業機本体2は、左右方向長手状で断面略円形状のフレームパイプ部4を有している。フレームパイプ部4の左右方向中央部には軸保持部5が設けられ、この軸保持部5にて前後方向の入力軸6が回転可能に保持されている。入力軸6は、図示しないトラクタのPTO軸に動力伝達手段を介して接続されている。   The work machine main body 2 has a frame pipe portion 4 that is longitudinal in the left-right direction and has a substantially circular cross section. A shaft holding portion 5 is provided at the center in the left-right direction of the frame pipe portion 4, and the input shaft 6 in the front-rear direction is rotatably held by the shaft holding portion 5. The input shaft 6 is connected to a PTO shaft of a tractor (not shown) via power transmission means.

また、作業機本体2は、フレームパイプ部4の左端部に設けられた伝動ケース部であるチェーンケース部7と、フレームパイプ部4の右端部に設けられた支持部であるブラケット部(図示せず)とを有している。そして、互いに離間対向するチェーンケース部7およびブラケット部には、入力軸6側からの動力で所定方向(アップカット方向またはダウンカット方向)に回転しながら耕耘作業をする耕耘体(ロータリー)8が回転可能に設けられている。   The work machine body 2 includes a chain case portion 7 as a transmission case portion provided at the left end portion of the frame pipe portion 4 and a bracket portion (not shown) as a support portion provided at the right end portion of the frame pipe portion 4. Z). Further, on the chain case portion 7 and the bracket portion that are spaced apart from each other, there is a cultivating body (rotary) 8 that performs cultivating work while rotating in a predetermined direction (up-cut direction or down-cut direction) with power from the input shaft 6 side. It is provided so as to be rotatable.

耕耘体8は、左端部がチェーンケース部7の下端部にて回転可能に支持されかつ右端部がブラケット部の下端部にて回転可能に支持された左右方向の回転軸9を有している。回転軸9には、複数の耕耘爪(図示せず)が取り付けられている。なお、回転軸9には、入力軸6からの動力を伝達する動力伝達手段(図示せず)が接続されている。この動力伝達手段は、軸保持部5内のギア、フレームパイプ部4内の伝動シャフト、チェーンケース部7内のチェーン等にて構成されている。   The tiller 8 has a left-right rotation shaft 9 whose left end is rotatably supported by the lower end of the chain case portion 7 and whose right end is rotatably supported by the lower end of the bracket portion. . A plurality of tilling claws (not shown) are attached to the rotating shaft 9. The rotating shaft 9 is connected to power transmission means (not shown) for transmitting power from the input shaft 6. This power transmission means includes a gear in the shaft holding portion 5, a transmission shaft in the frame pipe portion 4, a chain in the chain case portion 7, and the like.

さらに、作業機本体2は、耕耘体8の上方部を覆う略板状のカバー部(図示せず)を有している。そして、カバー部の後端部には、耕耘体8の後方で整地作業をする略板状の整地体10が上下方向に回動可能に設けられている。   Furthermore, the work machine body 2 has a substantially plate-like cover portion (not shown) that covers the upper portion of the tillage body 8. A substantially plate-shaped leveling body 10 that performs leveling work behind the tillage body 8 is provided at the rear end of the cover portion so as to be rotatable in the vertical direction.

また、作業機本体2はゲージ輪被取付部11を有し、このゲージ輪被取付部11にはゲージ輪12が上下位置調整可能に取り付けられている。   Further, the work implement body 2 has a gauge wheel attached portion 11, and a gauge wheel 12 is attached to the gauge wheel attached portion 11 so that the vertical position can be adjusted.

さらに、作業機本体2は、深さ調整用ロッド15の縮み動作および伸び動作に基づいて左右方向の軸16を中心として上下方向に回動可能なフレーム部17を有している。フレーム部17にはアーム部18が前後位置調整可能に取り付けられ、このアーム部18の後端部には左右方向長手状で角パイプ状の回動フレーム部19が前後方向の軸20を中心として回動可能に取り付けられている。つまり、回動フレーム部19の左右方向中央部がアーム部18の後端部に軸20を介して回動可能に取り付けられている。   Further, the work implement body 2 includes a frame portion 17 that can be rotated in the vertical direction about the left and right axis 16 based on the contracting operation and the extending operation of the depth adjusting rod 15. An arm portion 18 is attached to the frame portion 17 so that the front-rear position can be adjusted, and a pivoting frame portion 19 having a rectangular pipe shape is formed at the rear end portion of the arm portion 18 around the axis 20 in the front-rear direction. It is pivotally attached. That is, the central portion in the left-right direction of the rotating frame portion 19 is attached to the rear end portion of the arm portion 18 via the shaft 20 so as to be rotatable.

また、図2にも示されるように、回動フレーム部19には、この回動フレーム部19よりも長い左右方向長手状で丸パイプ状の支持フレーム部21が連結板22を介して取り付けられている。また、支持フレーム部21の左右方向両端部から細長板状の支持アーム部25が下方に向って突出している。   Further, as shown in FIG. 2, a support frame portion 21 that is longer in the left-right direction than the rotation frame portion 19 and has a round pipe shape is attached to the rotation frame portion 19 via a connecting plate 22. ing. Further, an elongated plate-like support arm portion 25 protrudes downward from both left and right end portions of the support frame portion 21.

そして、互いに離間対向する左右1対の支持アーム部25には、圃場側から受ける力で従動回転しながら砕土作業および鎮圧作業をする非駆動式のカゴ形状の転圧輪23が回転可能に設けられている。つまり、整地体10の後方で土塊を砕土するとともにその砕土層の下方に位置する砕土鎮圧層の上面を鎮圧する左右方向の略円筒状のカゴ型の転圧輪23が作業機本体2の支持アーム部(側板部)25に左右方向の軸24を中心として、すなわち例えばこの軸24の軸芯を通る左右方向の回転中心軸線Xを中心として回転可能に設けられている。   A pair of left and right support arms 25 that are opposed to each other are rotatably provided with a non-driven cage-shaped rolling wheel 23 that performs ground breaking and pressure reduction work while being driven and rotated by a force received from the field side. It has been. That is, a substantially cylindrical cage-type rolling wheel 23 in the left-right direction that crushes the lump behind the leveling body 10 and crushes the upper surface of the crushing crushing layer located below the crushing layer supports the work machine body 2. The arm portion (side plate portion) 25 is provided so as to be rotatable about a left-right direction shaft 24, that is, about a left-right rotation center axis X passing through the axis of the shaft 24, for example.

転圧輪23は、図1ないし図3に示されるように、回転中心軸線Xを中心とする仮想円筒面上に間隔をもって平行に位置する螺旋状の複数(例えば14本)の作業棒26と、左右方向に間隔をおいて位置し作業棒26を外周部で支持する略円形状の複数(例えば6つ)の支持部材27とを有している。   As shown in FIGS. 1 to 3, the rolling wheel 23 includes a plurality of (for example, 14) helical work rods 26 positioned in parallel on the virtual cylindrical surface centered on the rotation center axis X with a space therebetween. And a plurality of (for example, six) support members 27 having a substantially circular shape that are spaced apart from each other in the left-right direction and support the work bar 26 at the outer periphery.

支持部材27は、この支持部材27の周方向に等間隔をおいて並ぶ膨出状の複数の支持部28を外周部に有し、この支持部28には略円形状の孔部29が形成され、この孔部29に丸棒状の作業棒26が嵌挿されている。   The support member 27 has a plurality of bulging support portions 28 arranged at equal intervals in the circumferential direction of the support member 27 on the outer peripheral portion, and a substantially circular hole 29 is formed in the support portion 28. A round bar-like work bar 26 is inserted into the hole 29.

また、複数の支持部材27のうち、転圧輪23の左右方向両端部に位置する2つの支持部材27は、略円形板状の円板31にて構成されている。さらに、これら複数の支持部材27のうち、転圧輪23の左右方向中間部に位置する残りの4つの支持部材27は、略円形環状の円環32にて構成されている。なお、円板31の中心部が支持アーム部25の下端部に軸24を介して回転可能に取り付けられている。   Of the plurality of support members 27, the two support members 27 located at both ends in the left-right direction of the rolling wheel 23 are constituted by substantially circular plate-like disks 31. Further, among the plurality of support members 27, the remaining four support members 27 located in the intermediate portion in the left-right direction of the rolling wheel 23 are configured by a substantially circular annular ring 32. The central portion of the disc 31 is rotatably attached to the lower end portion of the support arm portion 25 via the shaft 24.

また一方、農作業機1は、図1および図2に示されるように、回転する転圧輪23の作業棒26に対して所望の接触圧をもって断続的に接触して弾性変形することでその弾性復元作用により土を叩き落とすように、各作業棒26に付着した土を落とす弾性変形可能な略板状の弾性部材である土落とし体(泥落とし体)41を備えている。   On the other hand, as shown in FIGS. 1 and 2, the agricultural working machine 1 is elastically deformed by intermittently contacting and elastically deforming the working rod 26 of the rotating rolling wheel 23 with a desired contact pressure. A soil drop body (a mud drop body) 41, which is an elastically deformable substantially plate-like elastic member for dropping the soil attached to each work rod 26, is provided so as to knock down the soil by a restoring action.

土落とし体41は、作業機本体2の支持フレーム部21に支持手段42を介して脱着可能に取り付けられ、転圧輪23の上方にこの転圧輪23の軸方向に沿って配設されている。支持手段42は、図4等にも示されるように、例えばUボルト43、Uボルト止め板44、連結部材45および当て板46等にて構成されている。   The soil drop body 41 is detachably attached to the support frame portion 21 of the work machine body 2 via the support means 42, and is disposed above the rolling wheel 23 along the axial direction of the rolling wheel 23. Yes. As shown in FIG. 4 and the like, the support means 42 includes, for example, a U bolt 43, a U bolt stopper plate 44, a connecting member 45, a contact plate 46, and the like.

連結部材45は、鉛直面に沿って位置する左右方向長手状で略板状の被取付部50を有しており、この被取付部50に土落とし体41が取付具51にて上下位置調整可能に取り付けられている。つまり、土落とし体41は、作業機本体2の被取付部50に対して上下位置調整可能つまり高さ位置調整可能となっている。なお、取付具51は、例えばボルト52およびナット53等である。   The connecting member 45 has a substantially plate-like attached portion 50 that is longitudinal in the left-right direction and is positioned along the vertical plane. It is attached as possible. That is, the soil drop body 41 can be adjusted in the vertical position, that is, in the height position with respect to the attached portion 50 of the work machine body 2. The fixture 51 is, for example, a bolt 52 and a nut 53.

そして、土落とし体41は、転圧輪23の作業棒26と接触する図4に示す作用状態と転圧輪23の作業棒26と接触しない図7に示す非作用状態とに選択的に切り換え可能となっている。   Then, the soil drop body 41 is selectively switched between the operating state shown in FIG. 4 that contacts the working rod 26 of the rolling wheel 23 and the non-operating state shown in FIG. 7 that does not contact the working rod 26 of the rolling wheel 23. It is possible.

図4に示す作用状態では、土落とし体41は、側面視で土落とし体41の下部が転圧輪23の支持部材27と重なり合うように、鉛直面に沿って位置する。図7に示す非作用状態では、土落とし体41は、側面視で支持部材27と重なり合わないように、鉛直面に対して傾斜した傾斜面に沿って位置する。   In the operating state shown in FIG. 4, the soil drop body 41 is positioned along the vertical plane so that the lower portion of the soil drop body 41 overlaps the support member 27 of the rolling wheel 23 in a side view. In the non-action state shown in FIG. 7, the soil drop body 41 is positioned along an inclined surface inclined with respect to the vertical surface so as not to overlap the support member 27 in a side view.

ここで、土落とし体41は、図5に示されるように、例えばゴム材料にて一体に形成された弾性変形可能な1枚の弾性板55のみによって構成されている。弾性板55は、左右方向長手状で略矩形板状に形成されている。弾性板55の左右方向長さ寸法は、丸パイプ状の支持フレーム部21の左右方向長さ寸法(軸方向長さ寸法)と略同じである。   Here, as shown in FIG. 5, the soil drop body 41 is configured by only one elastic plate 55 that is integrally formed of, for example, a rubber material and can be elastically deformed. The elastic plate 55 is formed in a substantially rectangular plate shape with a longitudinal shape in the left-right direction. The length dimension of the elastic plate 55 in the left-right direction is substantially the same as the length dimension in the left-right direction (axial length dimension) of the round pipe-shaped support frame portion 21.

弾性板55の上部には、上下方向に長手方向を有する複数の長孔部56が左右方向に等間隔で形成されている。また、弾性板55の下部には、上下方向に長手方向を有する長孔状でかつ下方に向って開口状の凹部57が転圧輪23の各支持部材27に対応する位置にそれぞれ切欠き形成されている。なお、凹部57の幅寸法は、支持部材27の厚さ寸法より少し大きい。   In the upper part of the elastic plate 55, a plurality of long hole portions 56 having a longitudinal direction in the vertical direction are formed at equal intervals in the horizontal direction. In addition, in the lower part of the elastic plate 55, a recess 57 having a long hole shape having a longitudinal direction in the vertical direction and opening downward is formed at a position corresponding to each support member 27 of the rolling wheel 23. Has been. The width dimension of the recess 57 is slightly larger than the thickness dimension of the support member 27.

そして、当て板46の孔部46a、弾性板55の長孔部56および被取付部50の孔部50aにボルト52が挿入され、このボルト52にナット53が螺合締付されることにより、土落とし体41である弾性板55が被取付部50にこの被取付部50の後面に沿って取り付けられている。このため、弾性板55の上端部全体が前側の被取付部50と後側の当て板46とにて前後から挟持されている。そして、この弾性板55は、被取付部50に対して長孔部56の長さ分だけ上下位置調整可能となっており、例えば図4の状態が下限位置に設定された状態であり、図6の状態が上限位置に設定された状態である。   Then, a bolt 52 is inserted into the hole 46a of the contact plate 46, the long hole 56 of the elastic plate 55, and the hole 50a of the attached portion 50, and the nut 53 is screwed and tightened to the bolt 52. An elastic plate 55 which is a soil drop body 41 is attached to the attached portion 50 along the rear surface of the attached portion 50. Therefore, the entire upper end portion of the elastic plate 55 is sandwiched from the front and rear by the front mounted portion 50 and the rear abutting plate 46. The elastic plate 55 can be adjusted in the vertical position by the length of the long hole portion 56 with respect to the attached portion 50. For example, the state shown in FIG. 4 is set to the lower limit position. 6 is a state in which the upper limit position is set.

また、図2から明らかなように、弾性板55の凹部57を、転圧輪23の回転時にこの転圧輪23の支持部材27の一部、つまり支持部材27の外周部の支持部28が通過するようになっている。つまり、作業時において回転する転圧輪23の支持部材27の外周部が弾性板55の凹部57内を通過することにより、転圧輪23の各支持部材27が弾性板55と接触しないようになっている。   As is clear from FIG. 2, the concave portion 57 of the elastic plate 55 is formed so that a part of the support member 27 of the rolling wheel 23, that is, the support portion 28 on the outer periphery of the support member 27 is rotated. It has come to pass. That is, the outer peripheral portion of the support member 27 of the rolling wheel 23 that rotates during operation passes through the recess 57 of the elastic plate 55 so that each support member 27 of the rolling wheel 23 does not contact the elastic plate 55. It has become.

なお、この弾性板55の凹部57の幅寸法は、支持部材27の厚さ寸法と同じか、それより少し小さくてもよく、この場合には、弾性板55における凹部57の周辺部分に支持部材27が接触する。   Note that the width dimension of the recess 57 of the elastic plate 55 may be the same as or slightly smaller than the thickness dimension of the support member 27. In this case, the support member is disposed around the recess 57 of the elastic plate 55. 27 touches.

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.

農作業機1をトラクタの走行により前方に向って移動させると、耕耘体8が回転しながら耕耘作業を行い、この耕耘体8の後方では整地体10が圃場面に追従するように上下回動しながら整地作業を行う。また、整地体10の後方では、カゴ型の転圧輪23が圃場側から受ける力で従動回転しながら、砕土作業および鎮圧作業を行う。   When the agricultural implement 1 is moved forward by the traveling of the tractor, the tilling body 8 rotates and the tilling work is performed, and the ground leveling body 10 is rotated up and down so that the ground leveling body 10 follows the field scene behind the tilling body 8. While doing leveling work. Further, behind the leveling body 10, the earth-crushing work and the pressure-reducing work are performed while the cage-type rolling wheel 23 is driven and rotated by the force received from the field side.

ここで、図8および図9に示すように、転圧輪23の作業棒26に付着した土は、土落とし体41である弾性板55にて叩き落とされる。   Here, as shown in FIG. 8 and FIG. 9, the soil adhering to the work rod 26 of the rolling wheel 23 is struck down by the elastic plate 55 that is the soil dropping body 41.

つまり、弾性板55は、転圧輪23の作業棒26にて回転方向前方側へ押されて略く字状になるまで一旦弾性変形した後、その作業棒26から離れると、弾性復元力で元の平面形状に復帰しようとする。この際、弾性板55は、次の作業棒26に衝突する。その結果、作業棒26の外周面に付着した土が、弾性板55にて叩き落とされるとともに掻き落とされる。   That is, the elastic plate 55 is once elastically deformed until it is pushed to the front side in the rotational direction by the work rod 26 of the rolling wheel 23 until it becomes a substantially square shape, and when it is separated from the work rod 26, the elastic restoring force Try to return to the original planar shape. At this time, the elastic plate 55 collides with the next work bar 26. As a result, the soil adhering to the outer peripheral surface of the work bar 26 is knocked down and scraped off by the elastic plate 55.

なお、図10に示すように、弾性板55を取り外した場合には、圃場の土質等によっては、圃場の土が転圧輪23の作業棒26の外周面に付着し、徐々に成長して大きくなる。   As shown in FIG. 10, when the elastic plate 55 is removed, the soil in the field adheres to the outer peripheral surface of the working rod 26 of the rolling wheel 23 and grows gradually depending on the soil quality of the field. growing.

そして、このような農作業機1によれば、転圧輪23の作業棒26に付着した土を落とす弾性変形可能な土落とし体41を備えるため、圃場面をきれいに仕上げることができるばかりでなく、転圧輪23の作業棒26に付着した土を作業者が手作業で落とす必要がなく、作業者の負担を軽減でき、作業効率の向上を図ることができる。   And according to such a farming machine 1, since it is equipped with the elastically deformable soil drop body 41 that drops the soil attached to the work rod 26 of the rolling wheel 23, not only can the farm scene be finished beautifully, It is not necessary for the operator to manually remove the soil adhering to the work rod 26 of the rolling wheel 23, so that the burden on the operator can be reduced and work efficiency can be improved.

また、土落とし体41は作業機本体2の被取付部50に上下位置調整可能に取り付けられているため、土落とし体41の上下位置を適切に調整でき、よって、土落とし体41と作業棒26との接触圧を調整可能となり、土落とし体41にて土を効果的に落として取り除くことができる。   In addition, since the earth dropping body 41 is attached to the attachment portion 50 of the work machine body 2 so that the vertical position can be adjusted, the vertical position of the earth dropping body 41 can be adjusted appropriately. The contact pressure with 26 can be adjusted, and the soil drop body 41 can effectively drop and remove the soil.

さらに、土落とし体41は作業棒26と接触する作用状態および作業棒26と接触しない非作用状態に選択的に切り換え可能となっているため、土落とし体41の状態を適切に切り換えることができる。よって、例えば土が作業棒26にほとんど付着しない土質の圃場で作業をする場合に土落とし体41を非作用状態に設定することにより、土落とし体41の耐久性を向上でき、また、例えば長期間不使用の際等に土落とし体41にクセが付くのを防止できる。   Furthermore, since the soil drop body 41 can be selectively switched between an action state in contact with the work bar 26 and a non-action state in which it does not contact the work bar 26, the state of the soil drop body 41 can be appropriately switched. . Therefore, for example, when working in a soil field where soil hardly adheres to the work rod 26, the soil drop body 41 can be set in a non-operating state to improve the durability of the soil drop body 41. It is possible to prevent the soil dropping body 41 from becoming hazy when the period is not used.

また、土落とし体41は支持部材27の一部が通過する凹部57を有するため、この凹部57を有しない場合等に比べて、土落とし体41を作業棒26に対して適切に接触させることができ、土落とし体41にて土を効率良く落とすことができる。   In addition, since the earth dropping body 41 has a recess 57 through which a part of the support member 27 passes, the earth dropping body 41 is appropriately brought into contact with the work bar 26 as compared with a case where the earth dropping body 41 is not provided. The soil removal body 41 can efficiently remove the soil.

さらに、土落とし体41は一体に形成された弾性変形可能な1枚の弾性板55にて構成されているため、複数枚の弾性板にて構成された場合等に比べて、部品点数が少なく、構成が簡単である。   Furthermore, since the soil drop body 41 is composed of a single elastic plate 55 that is integrally formed and can be elastically deformed, the number of parts is small compared to a case where it is composed of a plurality of elastic plates. The configuration is simple.

なお、上記一実施の形態では、土落とし体41を構成する弾性板55が凹部57を有するものについて説明したが、例えば図11に示す弾性板55のように、支持部材27の外周部が接触する複数の支持部材接触板部58を有するようにしてもよい。   In the above-described embodiment, the elastic plate 55 constituting the earth dropping body 41 has been described as having the concave portion 57. However, for example, as in the elastic plate 55 shown in FIG. A plurality of support member contact plate portions 58 may be provided.

つまり、この図11に示す弾性板55の下部には、上下方向長手状の対をなす平行な切れ目(スリット)59が転圧輪23の各支持部材27に対応する位置にそれぞれ形成されている。この各切れ目59は、弾性板55の下端縁から弾性板55の上下方向略中央部にわたって形成されている。こうして、弾性板55のうちこの弾性板55に形成された対をなす切れ目59間の部分が、略矩形状の支持部材接触板部58となっている。   That is, in the lower part of the elastic plate 55 shown in FIG. 11, parallel cuts (slits) 59 that form a pair in the vertical direction are formed at positions corresponding to the respective support members 27 of the rolling wheel 23. . Each cut line 59 is formed from the lower end edge of the elastic plate 55 to the substantially central portion in the vertical direction of the elastic plate 55. Thus, a portion of the elastic plate 55 between the cuts 59 forming a pair formed on the elastic plate 55 is a substantially rectangular support member contact plate portion 58.

そして、図12に示すように、弾性板55の支持部材接触板部58は、転圧輪23の支持部材27の外周面に常に接触して略く字状に弾性変形した状態で、支持部材27の外周面に付着した土を掻き落とす。よって、この弾性板55を備えた構成とすれば、転圧輪23の作業棒26に付着した土を効率良く落とすことができるばかりでなく、支持部材27の外周面に付着した土も落とすことができる。   Then, as shown in FIG. 12, the support member contact plate portion 58 of the elastic plate 55 is always in contact with the outer peripheral surface of the support member 27 of the rolling wheel 23 and elastically deformed into a substantially square shape. Scrape off the soil adhering to the outer peripheral surface of 27. Therefore, if the elastic plate 55 is provided, not only can the soil attached to the work rod 26 of the rolling wheel 23 be efficiently removed, but also the soil attached to the outer peripheral surface of the support member 27 can be removed. Can do.

また、土落とし体41は、1枚の弾性板55のみによって構成されたものには限定されず、例えば図13に示すように、土落とし体41が例えばゴム材料にてそれぞれ別体に形成された弾性変形可能な複数枚の弾性板61にて構成されたものであってもよい。この場合、左右方向に隣り合う弾性板61間には凹部57と略同じ幅の間隙62が存在し、この間隙62を転圧輪23の支持部材27の外周部が通過するようになっている。   Moreover, the earth-dropping body 41 is not limited to the one constituted by only one elastic plate 55. For example, as shown in FIG. 13, the earth-dropping body 41 is formed separately from a rubber material, for example. Further, it may be configured by a plurality of elastic plates 61 that can be elastically deformed. In this case, a gap 62 having substantially the same width as the concave portion 57 exists between the elastic plates 61 adjacent in the left-right direction, and the outer peripheral portion of the support member 27 of the rolling wheel 23 passes through the gap 62. .

なお、図13に示す土落とし体41の左右方向端部に位置する弾性板61には凹部57が形成されているが、この凹部57の代わりに支持部材接触板部58を有するものでもよく、また、凹部57や支持部材接触板部58を有さず、弾性板61の左右方向長さ寸法を短くするようにしてもよい。   In addition, although the recessed part 57 is formed in the elastic board 61 located in the left-right direction edge part of the earthmoving body 41 shown in FIG. 13, it may have the supporting member contact board part 58 instead of this recessed part 57, In addition, the length of the elastic plate 61 in the left-right direction may be shortened without the concave portion 57 and the support member contact plate portion 58.

そして、この図13に示す構成によれば、例えば弾性板61が石との接触等で破損した場合等に、土落とし体41全体を交換することなく、破損した弾性板61のみを交換でき、土落とし体41を部分的に直すことができる。   And, according to the configuration shown in FIG. 13, for example, when the elastic plate 61 is damaged due to contact with a stone or the like, only the damaged elastic plate 61 can be replaced without replacing the entire soil drop body 41, The earthmoving body 41 can be partially repaired.

なお、弾性板55,61は、ゴム材料にて形成されたものには限定されず、弾性変形可能な金属材料(例えばバネ鋼、ステンレス)や、合成樹脂材料等にて形成されたものでもよい。   The elastic plates 55 and 61 are not limited to those formed of a rubber material, but may be formed of an elastically deformable metal material (for example, spring steel or stainless steel), a synthetic resin material, or the like. .

また、例えば図14に示すように、土落とし体41が被取付部50に取り付けられる取付板部63とこの取付板部63の下端部に下方に向って突設された弾性変形可能なブラシ部64とにて構成されたもの等でもよい。なお、ブラシ部64を形成する材料は任意であり、ゴム、合成樹脂或いは金属等、いかなるものでもよい。   Further, as shown in FIG. 14, for example, a mounting plate portion 63 to which the earth removing body 41 is attached to the attached portion 50 and an elastically deformable brush portion projecting downward from the lower end portion of the mounting plate portion 63 It may be composed of 64 and the like. The material for forming the brush portion 64 is arbitrary, and any material such as rubber, synthetic resin or metal may be used.

さらに、土落とし体41は、例えば図示しないが、各支持部材27に対応する位置にそれぞれ1本ずつ切れ目を有する1枚の弾性板からなるものや、同一形状の複数枚の弾性板からなるもの等でもよい。   Further, the soil drop body 41 is composed of one elastic plate having a notch at each position corresponding to each support member 27 or a plurality of elastic plates having the same shape, although not shown. Etc.

また、農作業機1は、耕耘体8の前方で心土破砕作業をするサブソイラを備えたものでもよく、或いは、耕耘体8や整地体10を有さず、対土作業体として転圧輪23のみを備えたもの等でもよい。   Moreover, the agricultural working machine 1 may be provided with a subsoiler that performs subsoil crushing work in front of the tillage body 8, or does not have the tillage body 8 or the leveling body 10, and the rolling wheel 23 as an anti-soil work body. It may be provided with only.

1 農作業機
2 作業機本体
23 転圧輪
26 作業棒
27 支持部材
41 土落とし体
50 被取付部
55 弾性板
57 凹部
58 支持部材接触板部
59 切れ目
61 弾性板
1 Agricultural work machine 2 Work machine body
23 Rolling wheel
26 Work bar
27 Support member
41 Earthmoving body
50 Mounted part
55 Elastic plate
57 Recess
58 Support member contact plate
59 Cut
61 Elastic plate

Claims (7)

作業機本体と、
この作業機本体に回転可能に設けられ、複数の作業棒およびこれら複数の作業棒を支持する支持部材を有する転圧輪と、
弾性復元作用により土を叩き落とすように、前記作業棒に付着した土を落とす弾性変形可能な土落とし体とを備え、
前記土落とし体は、左右方向長手状で、前記転圧輪の上方にこの転圧輪の軸方向に沿って配設され、側面視でその下部が互いに隣り合う前記作業棒間に挿入されて前記支持部材と重なり合うように鉛直面に沿って位置する、農作業機であって、
前記土落とし体は、回転する前記転圧輪の作業棒にて回転方向前方側へ押されてく字状になるまで弾性変形した後、その作業棒から離れると、弾性復元力で元の平面形状に復帰して次の作業棒に衝突する
ことを特徴とする農作業機。
The work machine body,
A rolling wheel provided rotatably on the work machine body, and having a plurality of work bars and a support member that supports the plurality of work bars ,
An elastically deformable soil drop body that drops the soil attached to the working rod so as to knock down the soil by elastic restoring action ,
The earth-moving body is elongated in the left-right direction, and is disposed above the rolling wheel along the axial direction of the rolling wheel, and its lower part is inserted between the working bars adjacent to each other in a side view. Agricultural machine located along a vertical plane so as to overlap the support member,
The earth dropping body is elastically deformed until it is pushed into the rotation direction by the working rod of the rotating rolling wheel until it becomes a square shape. Agricultural work machine characterized by returning to the position and colliding with the next work bar .
作業機本体は、被取付部を有し、
土落とし体は、前記被取付部に上下位置調整可能に取り付けられ、
前記土落とし体の前記被取付部に対する上下位置調整により、前記土落とし体と作業棒との接触圧を調整することが可能となっている
ことを特徴とする請求項1記載の農作業機。
The work machine body has a mounted part,
The earth dropping body is attached to the attached part so that the vertical position can be adjusted,
The agricultural working machine according to claim 1, wherein the contact pressure between the earth dropping body and a work bar can be adjusted by adjusting the vertical position of the earth dropping body with respect to the attached portion.
土落とし体は、作業棒と接触する作用状態および前記作業棒と接触しない非作用状態に選択的に切り換え可能となっている
ことを特徴とする請求項1または2記載の農作業機。
The agricultural working machine according to claim 1 or 2, wherein the soil dropping body is selectively switchable between an operating state in contact with the work bar and a non-operating state in which the work bar is not in contact.
落とし体は、支持部材が通過する凹部を有する
ことを特徴とする請求項1ないし3のいずれか一記載の農作業機。
Soil dropped bodies, agricultural machine according to any one of claims 1 to 3, wherein a recess is supporting support member passes.
落とし体は、支持部材が接触する支持部材接触板部を有する弾性板にて構成され、
前記弾性板のうちこの弾性板に形成された対をなす切れ目間の部分が、前記支持部材接触板部となっている
ことを特徴とする請求項1ないし3のいずれか一記載の農作業機。
Soil down member is made of an elastic plate having a support member contacting plate portion supporting support member is in contact,
The farm work machine according to any one of claims 1 to 3, wherein a portion between the cuts forming a pair formed in the elastic plate is the support member contact plate portion.
土落とし体は、一体に形成された弾性変形可能な1枚の弾性板にて構成されている
ことを特徴とする請求項1ないし5のいずれか一記載の農作業機。
The agricultural machine according to any one of claims 1 to 5, wherein the soil drop body is formed of a single elastic plate that is integrally formed and elastically deformable.
土落とし体は、それぞれ別体に形成された弾性変形可能な複数枚の弾性板にて構成されている
ことを特徴とする請求項1ないし5のいずれか一記載の農作業機。
The agricultural working machine according to any one of claims 1 to 5, wherein the soil drop body is configured by a plurality of elastically deformable elastic plates formed separately from each other.
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