JP2007295812A - Mobile farm machine - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a mobile farm machine having a tilling apparatus integrated with a resisting member to apply traveling resistance to the machine body and a sleigh to control the tilling depth of the tilling apparatus in a manner to perform simultaneous efficient action of the resisting member and the sleigh. <P>SOLUTION: A tilling apparatus 5 is integrated with a resisting member 16 to be thrust into the ground to apply traveling resistance to the machine body and a sleigh 16 to contact with the ground and control the tilling depth of the tilling apparatus 5. The desired tilling depth of the tilling apparatus 5 can be maintained by the sleigh 22 while applying a proper traveling resistance to the machine body with the resisting member 16 by protruding the resisting member 16 downward beyond the sleigh 22. The resisting member 16 and the sleigh 22 can be set to the desired tilling action state at the same time by a single height adjustment of the resisting member 16. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

本発明は、機体の後部に装着した耕耘装置に、機体に走行抵抗を付与する抵抗体と耕耘装置の耕深を調節する橇体とを一体に備える移動農機に関する。   The present invention relates to a mobile agricultural machine that is integrally provided with a tiller mounted on the rear part of a machine body, and a resistor that imparts running resistance to the machine body and a chassis that adjusts the tilling depth of the tiller.

従来、機体の後部にロータリ耕耘装置等の耕耘装置を装着した小型移動農機においては、一つの接地具に、機体に走行抵抗を付与する抵抗体と耕耘装置の耕深を調節する橇体とを設けると共に、当該接地具の姿勢を切り換えるだけの簡単な操作で、抵抗体の下端が橇体の下端よりも相対的に下方に位置する状態と、橇体の下端が抵抗体の下端よりも相対的に下方に位置する状態とに切換自在に構成することによって、前記抵抗体を主に使用する状態と、橇体を主に使用する状態とに切り換えることができるようにしたものが知られている（例えば、特許文献１参照）。
特開平６−１５３６０２号公報（第２−３頁、図１−図２） Conventionally, in a small mobile agricultural machine equipped with a tillage device such as a rotary tiller at the rear of the machine body, a single grounding tool is provided with a resistor for imparting running resistance to the machine body and a chassis for adjusting the tillage depth of the tillage device. And a simple operation that simply switches the posture of the grounding device, the state where the lower end of the resistor is positioned below the lower end of the housing, and the lower end of the housing is relative to the lower end of the resistor. It is known that it is possible to switch between a state in which the resistor is mainly used and a state in which the housing is mainly used by being configured so as to be switchable to a state in which it is positioned below. (For example, refer to Patent Document 1).
JP-A-6-153602 (page 2-3, FIG. 1-2)

しかし、上述した特許文献１のものは、抵抗体と橇体の何れか一方を主に作用させる状態に切り換えることは可能であるが、両者を同時に効率的に作用させることは困難であり、この不具合を改善することを期待されていた。   However, although the thing of the patent document 1 mentioned above can be switched to the state which mainly acts either a resistor or a housing, it is difficult to make both act simultaneously efficiently, and this Expected to improve the bug.

本発明は、上記課題を解決することを目的としたものであって、機体の後部に耕耘装置を装着した移動農機において、前記耕耘装置に、地中に没入して機体に走行抵抗を付与する抵抗体と、接地しながら耕耘装置の耕深を調節する橇体とを一体に設けるにあたり、前記抵抗体を橇体よりも下方に突出させたことを第１の特徴としている。   The present invention aims to solve the above-mentioned problems, and in a mobile agricultural machine equipped with a tillage device at the rear part of the machine body, the farming apparatus is immersed in the ground to give running resistance to the machine body. When the resistor and the rod that adjusts the tilling depth of the tilling device while being grounded are integrally provided, the first feature is that the resistor is protruded downward from the rod.

そして、抵抗体に橇体を固設したことを第２の特徴としている。   The second feature is that the housing is fixed to the resistor.

本発明は、耕耘装置に、地中に没入して機体に走行抵抗を付与する抵抗体と、接地しながら耕耘装置の耕深を調節する橇体とを一体に設けるにあたり、前記抵抗体を橇体よりも下方に突出させたことによって、当該抵抗体により機体に適切な走行抵抗を付与しながら、同時に橇体により耕耘装置の所望の耕深を維持することが可能になり、以って抵抗体と橇体を同時に作用させての効率的な耕耘作業が行なえるようになる。   According to the present invention, when the plowing device is integrally provided with a resistor that immerses in the ground and imparts running resistance to the aircraft, and a rod that adjusts the plowing depth of the plowing device while being grounded, By projecting downward from the body, it becomes possible to maintain the desired tilling depth of the tilling device by the rod body while simultaneously imparting an appropriate running resistance to the aircraft by the resistor body, and thus resistance. Efficient tillage work can be performed by simultaneously operating the body and the body.

そして、抵抗体に橇体を固設したことによって、前記抵抗体の一回の高さ調節により抵抗体と橇体とを所望の耕耘作用状態に同時に設定することができる。   Then, by fixing the rod to the resistor, the resistor and the rod can be simultaneously set in a desired tillage state by adjusting the height of the resistor once.

次に、本発明の実施形態を図面に基づいて説明する。図１は、小型移動農機である歩行型管理機１の側面図であって、この歩行型管理機１は、機体フレームを構成する側面視で略へ字状のミッションケース２が中央に配設してあり、該ミッションケース２の前側下部には、車軸３を軸架して走行車輪４を取付けている。また、ミッションケース２の後側下部には、ロータリ耕耘装置５の耕耘軸６を横架すると共に、該耕耘軸６の外周に複数本の耕耘爪７を植設している。   Next, embodiments of the present invention will be described with reference to the drawings. FIG. 1 is a side view of a walking-type management machine 1 that is a small mobile agricultural machine. The walking-type management machine 1 has a mission case 2 that is substantially square-shaped when viewed from the side that constitutes the body frame. In the lower part of the front side of the transmission case 2, a traveling wheel 4 is attached to the axle 3. In addition, a tilling shaft 6 of the rotary tiller 5 is horizontally mounted on the rear lower portion of the mission case 2, and a plurality of tilling claws 7 are planted on the outer periphery of the tilling shaft 6.

そして、ミッションケース２の前方に取付けたエンジンフレーム８にエンジン９を搭載してあり、このエンジン９の一側に配設したベルトカバー１０内の図示しないプーリやベルトを介して、当該エンジン９の駆動力をミッションケース２に伝達すると共に、該ミッションケース２に備える変速機構を介して変速した動力を、走行車輪４やロータリ耕耘装置５に伝達できるように構成している。   An engine 9 is mounted on an engine frame 8 attached to the front of the transmission case 2, and the engine 9 is connected via a pulley or belt (not shown) in a belt cover 10 disposed on one side of the engine 9. The driving force is transmitted to the transmission case 2, and the power shifted through the transmission mechanism provided in the transmission case 2 can be transmitted to the traveling wheels 4 and the rotary tiller 5.

また、ミッションケース２の上部には、後方に向けて前低後高状のハンドル１１を延出してあり、このハンドル１１をオペレータが把持した状態で歩行型管理機１を走行させながらロータリ耕耘装置５を回転駆動させることによって、所望の耕耘作業を行なうことができるようになっている。   In addition, a front, rear, and rear high handle 11 is extended to the rear of the mission case 2, and the rotary tiller is operated while the walking type management machine 1 is running with the handle 11 held by an operator. By rotating and driving 5, a desired tillage work can be performed.

尚、ハンドル１１の把持部１１ａ周辺には、主クラッチレバー１２やエンジンコントロールレバー１３等が設けてあり、主クラッチレバー１２を操作することにより、エンジン９とミッションケース２との間に介設した図示しないテンションクラッチ機構を介して、当該エンジン９とミッションケース２間の動力の断接がなされる。   A main clutch lever 12, an engine control lever 13, and the like are provided around the grip 11a of the handle 11, and are interposed between the engine 9 and the transmission case 2 by operating the main clutch lever 12. Power is connected / disconnected between the engine 9 and the transmission case 2 via a tension clutch mechanism (not shown).

また、上述したロータリ耕耘装置５を構成する複数本の耕耘爪７の周囲には、この複数本の耕耘爪７の回転による泥土等の飛散を防止すべく、当該耕耘爪７の前側を含む上側、及び両側を覆う略半円弧状のロータリカバー１４を設けると共に、その後側にも基端部１５ａを回動支点として上下回動自在なリヤカバー１５を設けている。   Further, an upper side including the front side of the tilling claws 7 is provided around the plurality of tilling claws 7 constituting the rotary tilling device 5 to prevent scattering of mud etc. due to the rotation of the plurality of tilling claws 7. In addition, a substantially semicircular arc-shaped rotary cover 14 that covers both sides is provided, and a rear cover 15 that is rotatable up and down is provided on the rear side thereof with the base end portion 15a as a rotation fulcrum.

そして、円弧状のロータリカバー１４の後側中央には、機体に走行抵抗を付与する抵抗体１６を固定するホルダー１７を設けると共に、その上部には、歩行型管理機１の移動走行用の尾輪体１８を格納状態で装着できるように構成している。   A holder 17 for fixing a resistor 16 for applying running resistance to the airframe is provided at the rear center of the arc-shaped rotary cover 14, and a tail for moving travel of the walking type management machine 1 is provided above the holder 17. The ring body 18 can be mounted in the retracted state.

上述した抵抗体１６は、ロータリ耕耘装置５の耕耘反力によってダッシング現象が起こることを防止するために設けるフラットバーからなる抵抗棒であって、このフラットバーからなる抵抗体１６は、図２及び図３に示すように、その後側上部に複数段の切欠き１６ａを備える一方、これらの切欠き１６ａに選択的に係止して抵抗体１６、及び詳細は後述する橇体２２を所望の高さに調節するロックレバー１９をホルダー１７側に設けている。尚、ロックレバー１９は、引張スプリング２１を介して常時切欠き１６ａとの係止方向に付勢されている。   The resistor 16 described above is a resistance bar made of a flat bar provided to prevent a dashing phenomenon from occurring due to the tilling reaction force of the rotary tiller 5, and the resistor 16 made of this flat bar is shown in FIG. As shown in FIG. 3, a plurality of cutouts 16a are provided at the upper part on the rear side, and the resistor 16 and the casing 22 (to be described later in detail) are selectively locked to these cutouts 16a to a desired height. A lock lever 19 for adjusting the height is provided on the holder 17 side. The lock lever 19 is always biased in the locking direction with the notch 16a via the tension spring 21.

また、抵抗体１６の先端（下端）側には、耕耘作業中における耕深を安定させるための平面視で船形状、且つ側面視で前上がり傾斜面２２ａを有する橇体２２を固設している。更に詳しくは、抵抗体１６の先端部１６ｂは、橇体２２よりも下方に突出させた状態で一体に固設してあるので、当該抵抗体１６により機体に適切な走行抵抗を付与しながら、同時に抵抗体１６が地中に深く入り込むことを橇体２２により抑制することが可能になると共に、抵抗体１６と橇体２２を軽量且つ安価に一体形成することができる。尚、橇体２２の後側中央に穿設した孔２２ｂを利用して、図４に示す如く移動走行用の尾輪体１８を装着する。   Further, on the distal end (lower end) side of the resistor 16, a frame 22 having a ship shape in a plan view and a front rising inclined surface 22 a in a side view is fixed to stabilize the plowing depth during the tilling work. Yes. More specifically, the tip 16b of the resistor 16 is integrally fixed in a state of protruding downward from the housing 22, so that the resistor 16 provides an appropriate running resistance to the aircraft, At the same time, it is possible to prevent the resistor 16 from entering deeply into the ground by the housing 22, and the resistor 16 and the housing 22 can be integrally formed at a light weight and at a low cost. Note that the tail wheel body 18 for traveling is mounted as shown in FIG.

したがって、図１に示す作業形態のように、抵抗体１６と橇体２２とを二点鎖線で示す圃場面Ｇより深く入り込ませて、抵抗体１６の先端部１６ｂが耕耘爪７よりも下方に突出するように高さ調節した場合には、この時抵抗体１６と橇体２２は、主としてダッシング防止手段として作用させることができる。   Therefore, as in the working mode shown in FIG. 1, the resistor 16 and the frame 22 are inserted deeper than the field scene G indicated by the two-dot chain line, and the tip 16 b of the resistor 16 is located below the tillage claw 7. When the height is adjusted so as to protrude, the resistor 16 and the casing 22 can act mainly as a dashing prevention means.

また、図５に示す作業形態のように、橇体２２の下面を二点鎖線で示す圃場面Ｇに接地させた状態で、抵抗体１６の先端部１６ｂが耕耘爪７先端よりも上方に位置するように高さ調節した場合には、抵抗体１６と橇体２２は耕深調節手段として作用させることができる。   Further, as in the operation mode shown in FIG. 5, the tip 16b of the resistor 16 is positioned above the tip of the tilling claw 7 in a state where the lower surface of the box 22 is grounded to the farm scene G indicated by a two-dot chain line. When the height is adjusted in such a manner, the resistor 16 and the skeleton 22 can act as tillage adjusting means.

即ち、歩行型管理機１の後部に装着した耕耘装置５に、地中に没入して機体に走行抵抗を付与する抵抗体１６と、圃場面Ｇに接地しながら耕耘装置５の耕深を調節する橇体２２とを一体に設けるにあたり、前記抵抗体１６を橇体２２よりも下方に突出させたことによって、当該抵抗体１６により機体に適切な走行抵抗を付与しながら、同時に抵抗体１６が地中に深く入り込むことを橇体２２により抑制して、耕耘装置５の所望の耕深を維持することが可能になる。また、抵抗体１６に橇体２２を固設したことによって、抵抗体１６の一回の高さ調節により抵抗体１６と橇体２２とを所望の耕耘作用状態に同時に設定することができ、以って抵抗体１６と橇体２２を同時に作用させての効率的な耕耘作業が行なえるようになる。   That is, the plowing device 5 attached to the rear part of the walking-type management machine 1 adjusts the plowing depth of the plowing device 5 while touching the field scene G, and the resistor 16 that immerses in the ground and gives running resistance to the body. When the housing 22 is integrally provided, the resistor 16 is projected downward from the housing 22 so that the resistor 16 provides an appropriate running resistance to the body while the resistor 16 It is possible to maintain the desired tilling depth of the tilling device 5 by suppressing the deep penetration into the ground by the rod body 22. Further, by fixing the rod 22 to the resistor 16, the resistor 16 and the rod 22 can be simultaneously set in a desired tilling action state by adjusting the height of the resistor 16 once. Thus, an efficient tilling operation can be performed by simultaneously operating the resistor 16 and the chassis 22.

抵抗体と橇体をダッシング防止手段として作用させている状態を示す歩行型管理機の側面図。The side view of the walking type management machine which shows the state which is making the resistor and the housing act as a dashing prevention means. 抵抗体に橇体を固設した状態を示す側面図。The side view which shows the state which fixed the housing to the resistor. 図２におけるＡ矢視図。FIG. 3 is an A arrow view in FIG. 2. 尾輪体を装着した移動走行状態を示す歩行型管理機の側面図。The side view of the walking type management machine which shows the traveling state which attached the tail wheel body. 抵抗体と橇体を耕深調節手段として作用させている状態を示す歩行型管理機の側面図。The side view of the walk type management machine which shows the state which is making the resistor and the rod act as a tilling depth adjustment means.

符号の説明Explanation of symbols

５ 耕耘装置
１６ 抵抗体
２２ 橇体
5 Tillage device 16 Resistor 22 Body

Claims (2)

機体の後部に耕耘装置（５）を装着した移動農機において、前記耕耘装置（５）に、地中に没入して機体に走行抵抗を付与する抵抗体（１６）と、接地しながら耕耘装置（５）の耕深を調節する橇体（２２）とを一体に設けるにあたり、前記抵抗体（１６）を橇体（２２）よりも下方に突出させたことを特徴とする移動農機。   In a mobile agricultural machine equipped with a tillage device (5) at the rear of the machine body, the tiller device (5) is immersed in the ground to provide a running resistance to the machine body and a tiller device (16) while being grounded. 5) A mobile agricultural machine characterized in that the resistor (16) protrudes downward from the chassis (22) when the chassis (22) for adjusting the tilling depth of 5) is provided integrally. 抵抗体（１６）に橇体（２２）を固設した請求項１に記載の移動農機。   The mobile agricultural machine according to claim 1, wherein the frame (22) is fixed to the resistor (16).

Images