JP4996181B2

JP4996181B2 - Rice transplanter

Info

Publication number: JP4996181B2
Application number: JP2006242163A
Authority: JP
Inventors: 和芳中島; 昌司本田; 重人衣川; 祐一加藤
Original assignee: Yanmar Co Ltd; Yoka Industry Co Ltd
Current assignee: Yanmar Co Ltd; Yoka Industry Co Ltd
Priority date: 2006-09-06
Filing date: 2006-09-06
Publication date: 2012-08-08
Anticipated expiration: 2026-09-06
Also published as: JP2008061560A

Abstract

<P>PROBLEM TO BE SOLVED: To provide a rice transplanter made so as to be capable of housing the side end part of a rotor of a leveling device by a simple structure and also capable of fixing a side rotor on a central rotor shaft when being stored. <P>SOLUTION: This rice transplanter is provided by forming the rotor shaft 39 of a leveling device main body 35 facing its axial line in left and right direction with a central rotor shaft 39a and side rotor shaft 39b, pivoting the side rotor 40b together with the side rotor shaft 39b at the central rotor shaft 39a so as to be able to rotate by a frontal view, also forming a mutually butting surface, butting with each other in their axial direction at a fixed side power transmitting member 49a installed at the outside end part of the central rotor shaft 39a and a power-transmission destination member 49b installed at the inside end part of the side rotor shaft 39b so as to fit a fitting hole 53a with a fitting pin 53b by butting them and further arranging them on an almost J-shaped rotation fulcrum shaft 82 viewed from above so as to be rotatable by the front view to make the side rotor shaft 39b and side rotor 40b as capable of being fixed at their working position or storage position. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

本発明は、整地装置を具備する田植機に関し、詳しくは整地装置の収納技術に関する。 The present invention relates to a rice transplanter including a leveling device, and more particularly to a storage technology for a leveling device.

従来、田植機の一形態として、走行部の後方に植付部を昇降自在に連結し、該植付部に整地装置を取り付けたものがある。該整地装置は、左右方向に軸線を向けたロータ軸と、該ロータ軸の外周に同軸的に取り付けた複数のロータと、左右に隣接するロータ間にてロータ軸に連動連結して走行部に設けた原動機部からの動力をロータ軸に伝動する伝動ケースとを具備しており、該ロータ軸は、植付部の左右幅と略同一幅に形成して、該ロータ軸の外周に複数のロータを同軸的に取り付けている。このようにして、ロータを回動させながら圃場面を移動させることにより、該ロータにより圃場面を整地（均す）することができるようにしている（例えば、特許文献１参照）。
特開２００１−７８５０３号公報 Conventionally, as one type of rice transplanter, there is one in which a planting part is connected to a rear part of a traveling part so as to be movable up and down and a leveling device is attached to the planting part. The leveling device includes a rotor shaft whose axis is directed in the left-right direction, a plurality of rotors coaxially attached to the outer periphery of the rotor shaft, and a rotor shaft between the rotors adjacent to the left and right. A transmission case for transmitting power from the provided prime mover portion to the rotor shaft, the rotor shaft being formed to have substantially the same width as the lateral width of the planting portion, and a plurality of The rotor is mounted coaxially. In this way, by moving the farm scene while rotating the rotor, the farm scene can be leveled (leveled) by the rotor (see, for example, Patent Document 1).
JP 2001-78503 A

ところが、上記した整地装置では、ロータ軸を植付部の左右幅と略同一の広幅に形成しているために、田植機を運搬車の荷台に載せて搬送する際の積み降ろし作業に整地装置が支障となることがある。つまり、４条や５条等の田植機ではトラックの荷台に積み込むことができるが、８条以上では荷台からはみ出してしまい積み込むことができない。そこで、両側の条を折りたたむようにしている。そして、整地装置の左右幅を短幅化するためにロータの側端部（サイドロータ）を取り外すことができる場合でも、取り外したサイドロータを保管するスペースが必要となり、田植機を収納している間に該サイドロータを紛失する等の虞もあった。本発明は上記の課題を解決するために、簡易な構造でサイドロータを収納可能にするとともに、収納時に該サイドロータを中央ロータ軸上部に固定可能とした田植機を低コストで提供するものである。 However, in the leveling device described above, the rotor shaft is formed to have a width that is substantially the same as the left and right width of the planting part, so the leveling device is used for loading and unloading work when the rice transplanter is transported on the loading platform of the transport vehicle. May be an obstacle. In other words, 4 or 5 rice transplanters can be loaded onto the truck bed, but 8 or more can protrude from the bed and cannot be loaded. Therefore, the strips on both sides are folded. And even when the side end of the rotor (side rotor) can be removed in order to shorten the lateral width of the leveling device, a space for storing the removed side rotor is required, and the rice transplanter is housed. In the meantime, the side rotor may be lost. In order to solve the above problems, the present invention provides a rice transplanter capable of storing a side rotor with a simple structure and capable of fixing the side rotor to an upper portion of a central rotor shaft at the time of storage. is there.

本発明の解決しようとする課題は以上の如くであり、次にこの課題を解決するための手段を説明する。 The problem to be solved by the present invention is as described above. Next, means for solving the problem will be described.

請求項１においては、走行部（１）の後方に植付部（２）を昇降自在に連結し、該植付部（２）のフロート（２９）前方に圃場面を整地する整地装置本体（３５）を左右方向に配置する田植機（Ａ）において、該整地装置本体（３５）を中央整地体と、該中央整地体の左右一側または両側に設けるサイド整地体とから構成し、前記中央整地体外側上部にサイド整地体の内側上部を上下回動可能に枢支し、該サイド整地体を上方に回動して収納可能に構成し、前記中央整地体は、左右方向に軸線を有する中央ロータ軸（３９ａ・３９ａ）と、該中央ロータ軸（３９ａ・３９ａ）に動力を伝達する伝動ケース（４１）と、該ロータ軸（３９）上に取り付けたロータ（４０）と、該ロータ（４０）上方を覆うロータケース（３４）より構成し、該サイド整地体は、サイドロータケース（５４）と、該サイドロータケース（５４）に両側を回転自在に枢支したサイドロータ軸（３９ｂ）と、該サイドロータ軸（３９ｂ）上に取り付けたロータ（４０ｂ）と、該サイドロータケース（５４）に付設したサイドフレーム（８１ｂ）より構成し、前記中央整地体の側より主フレーム（８１ａ）を機体外側に向かって延設し、該主フレーム（８１ａ）の先端部に、前記サイド整地体に付設したサイドフレーム（８１ｂ）を、回動支点軸（８２）を介して、上下に回動可能に軸支し、前記中央ロータ軸（３９ａ）の外側端部には、円板状に構成した動力伝達部材（４９ａ）の中心部を固設し、前記サイドロータ軸（３９ｂ）の内側端部にも、円板状に構成した被動力伝達部材（４９ｂ）の中心部を固設し、該動力伝達部材（４９ａ）と被動力伝達部材（４９ｂ）とが対向する側の一方には、突き合わせ面の中心部分に嵌合孔（８４ａ）を開口し、該嵌合孔（８４ａ）を挟んでその両側に嵌合孔（５３ａ・５３ａ）を開口し、該動力伝達部材（４９ａ）と被動力伝達部材（４９ｂ）とが対向する側の他方には、中心部分に前記嵌合孔（８４ａ）に挿入可能な嵌合ピン（８４ｂ）を突出し、該嵌合ピン（８４ｂ）を挟んでその両側に前記嵌合孔（５３ａ・５３ａ）に挿入可能な嵌合ピン（５３ｂ・５３ｂ）を突設し、前記整地装置本体（３５）を拡幅して作業状態とする場合は、該嵌合孔（８４ａ）と嵌合ピン（８４ｂ）を嵌合させて軸中心の位置決めを行い、該動力伝達部材（４９ａ）と被動力伝達部材（４９ｂ）の嵌合ピン（５３ｂ・５３ｂ）と嵌合孔（５３ａ・５３ｂ）をそれぞれ嵌合させて、該中央ロータ軸（３９ａ）からサイドロータ軸（３９ｂ）に動力を伝達可能とし、前記回動支点軸（８２）を中心にサイドフレーム（８１ｂ）を回動した状態でロックするロック部を、前記主フレーム（８１ａ）とサイドフレーム（８１ｂ）の間に構成したものである。 In Claim 1, the planting part (2) is connected to the back of the traveling part (1) so as to be able to move up and down, and the leveling device main body for leveling the farm scene in front of the float (29) of the planting part (2) ( in rice transplanter to place 35) in the lateral direction (a), composed from the leveling device main body (35) and the central ground leveling member, a side leveling member provided on one lateral side or both sides of the central ground leveling member, the central The upper side of the side leveling body is pivotally supported on the outer side of the leveling body so as to be pivotable up and down, and the side leveling body can be pivoted upward to be stored. The central leveling body has an axis in the left-right direction. A central rotor shaft (39a, 39a), a transmission case (41) for transmitting power to the central rotor shaft (39a, 39a), a rotor (40) mounted on the rotor shaft (39), and the rotor ( 40) constructed from rotor case (34) covering the upper, 該Sa The ground leveling body includes a side rotor case (54), a side rotor shaft (39b) pivotally supported on both sides of the side rotor case (54), and a rotor mounted on the side rotor shaft (39b) ( 40b) and a side frame (81b) attached to the side rotor case (54), a main frame (81a) is extended from the central leveling body side toward the outside of the machine body, and the main frame (81a The side frame (81b) attached to the side leveling body is pivotally supported at the front end portion of the side ground leveling body via the rotation fulcrum shaft (82) so as to be pivotable up and down, and is outside the central rotor shaft (39a). A central portion of a power transmission member (49a) configured in a disc shape is fixed to the end portion, and a driven power transmission member configured in a disc shape (in the inner end portion of the side rotor shaft (39b)) ( 49b) fixed center On one side of the power transmission member (49a) and the power transmission member (49b) facing each other, a fitting hole (84a) is opened at the center of the butted surface, and the fitting hole (84a) is formed. Fitting holes (53a, 53a) are opened on both sides of the sandwiched hole, and the other side of the side where the power transmission member (49a) and the power transmission member (49b) face each other is provided with the fitting hole ( 84a) protrudes a fitting pin (84b) that can be inserted, and sandwiches the fitting pin (84b) and has fitting pins (53b and 53b) that can be inserted into the fitting holes (53a and 53a) on both sides thereof. When projecting and widening the leveling device main body (35) to obtain a working state, the fitting hole (84a) and the fitting pin (84b) are fitted to each other to position the shaft center, and the power Fitting pins (53b and 53b) of the transmission member (49a) and the driven transmission member (49b) And the fitting holes (53a, 53b) are respectively fitted so that power can be transmitted from the central rotor shaft (39a) to the side rotor shaft (39b), and the side frame around the rotation fulcrum shaft (82). A lock portion for locking (81b) in a rotated state is configured between the main frame (81a) and the side frame (81b) .

本発明の効果として、以下に示すような効果を奏する。 As effects of the present invention, the following effects can be obtained.

請求項１においては、走行部（１）の後方に植付部（２）を昇降自在に連結し、該植付部（２）のフロート（２９）前方に圃場面を整地する整地装置本体（３５）を左右方向に配置する田植機（Ａ）において、該整地装置本体（３５）を中央整地体と、該中央整地体の左右一側または両側に設けるサイド整地体とから構成し、前記中央整地体外側上部にサイド整地体の内側上部を上下回動可能に枢支し、該サイド整地体を上方に回動して収納可能に構成し、前記中央整地体は、左右方向に軸線を有する中央ロータ軸（３９ａ・３９ａ）と、該中央ロータ軸（３９ａ・３９ａ）に動力を伝達する伝動ケース（４１）と、該ロータ軸（３９）上に取り付けたロータ（４０）と、該ロータ（４０）上方を覆うロータケース（３４）より構成し、該サイド整地体は、サイドロータケース（５４）と、該サイドロータケース（５４）に両側を回転自在に枢支したサイドロータ軸（３９ｂ）と、該サイドロータ軸（３９ｂ）上に取り付けたロータ（４０ｂ）と、該サイドロータケース（５４）に付設したサイドフレーム（８１ｂ）より構成し、前記中央整地体の側より主フレーム（８１ａ）を機体外側に向かって延設し、該主フレーム（８１ａ）の先端部に、前記サイド整地体に付設したサイドフレーム（８１ｂ）を、回動支点軸（８２）を介して、上下に回動可能に軸支し、前記中央ロータ軸（３９ａ）の外側端部には、円板状に構成した動力伝達部材（４９ａ）の中心部を固設し、前記サイドロータ軸（３９ｂ）の内側端部にも、円板状に構成した被動力伝達部材（４９ｂ）の中心部を固設し、該動力伝達部材（４９ａ）と被動力伝達部材（４９ｂ）とが対向する側の一方には、突き合わせ面の中心部分に嵌合孔（８４ａ）を開口し、該嵌合孔（８４ａ）を挟んでその両側に嵌合孔（５３ａ・５３ａ）を開口し、該動力伝達部材（４９ａ）と被動力伝達部材（４９ｂ）とが対向する側の他方には、中心部分に前記嵌合孔（８４ａ）に挿入可能な嵌合ピン（８４ｂ）を突出し、該嵌合ピン（８４ｂ）を挟んでその両側に前記嵌合孔（５３ａ・５３ａ）に挿入可能な嵌合ピン（５３ｂ・５３ｂ）を突設し、前記整地装置本体（３５）を拡幅して作業状態とする場合は、該嵌合孔（８４ａ）と嵌合ピン（８４ｂ）を嵌合させて軸中心の位置決めを行い、該動力伝達部材（４９ａ）と被動力伝達部材（４９ｂ）の嵌合ピン（５３ｂ・５３ｂ）と嵌合孔（５３ａ・５３ｂ）をそれぞれ嵌合させて、該中央ロータ軸（３９ａ）からサイドロータ軸（３９ｂ）に動力を伝達可能とし、前記回動支点軸（８２）を中心にサイドフレーム（８１ｂ）を回動した状態でロックするロック部を、前記主フレーム（８１ａ）とサイドフレーム（８１ｂ）の間に構成したので、中央整地体外側上部にサイド整地体の内側上部を上下回動可能に枢支し、該サイド整地体を上方に回動して収納可能に構成したので、田植機を運搬車の荷台に載せて搬送する際の積み降ろし作業時や収納時に、左右どちらか一方または両側のサイド整地体を機体内側に回動させ、整地装置の左右幅を短幅化して収納することができる。 In Claim 1, the planting part (2) is connected to the back of the traveling part (1) so as to be able to move up and down, and the leveling device main body for leveling the farm scene in front of the float (29) of the planting part (2) ( in rice transplanter to place 35) in the lateral direction (a), composed from the leveling device main body (35) and the central ground leveling member, a side leveling member provided on one lateral side or both sides of the central ground leveling member, the central The upper side of the side leveling body is pivotally supported on the outer side of the leveling body so as to be pivotable up and down, and the side leveling body can be pivoted upward to be stored. The central leveling body has an axis in the left-right direction. A central rotor shaft (39a, 39a), a transmission case (41) for transmitting power to the central rotor shaft (39a, 39a), a rotor (40) mounted on the rotor shaft (39), and the rotor ( 40) constructed from rotor case (34) covering the upper, 該Sa The ground leveling body includes a side rotor case (54), a side rotor shaft (39b) pivotally supported on both sides of the side rotor case (54), and a rotor mounted on the side rotor shaft (39b) ( 40b) and a side frame (81b) attached to the side rotor case (54), a main frame (81a) is extended from the central leveling body side toward the outside of the machine body, and the main frame (81a The side frame (81b) attached to the side leveling body is pivotally supported at the front end portion of the side ground leveling body via the rotation fulcrum shaft (82) so as to be pivotable up and down, and is outside the central rotor shaft (39a). A central portion of a power transmission member (49a) configured in a disc shape is fixed to the end portion, and a driven power transmission member configured in a disc shape (in the inner end portion of the side rotor shaft (39b)) ( 49b) fixed center On one side of the power transmission member (49a) and the power transmission member (49b) facing each other, a fitting hole (84a) is opened at the center of the butted surface, and the fitting hole (84a) is formed. Fitting holes (53a, 53a) are opened on both sides of the sandwiched hole, and the other side of the side where the power transmission member (49a) and the power transmission member (49b) face each other is provided with the fitting hole ( 84a) protrudes a fitting pin (84b) that can be inserted, and sandwiches the fitting pin (84b) and has fitting pins (53b and 53b) that can be inserted into the fitting holes (53a and 53a) on both sides thereof. When projecting and widening the leveling device main body (35) to obtain a working state, the fitting hole (84a) and the fitting pin (84b) are fitted to each other to position the shaft center, and the power Fitting pins (53b and 53b) of the transmission member (49a) and the driven transmission member (49b) And the fitting holes (53a, 53b) are respectively fitted so that power can be transmitted from the central rotor shaft (39a) to the side rotor shaft (39b), and the side frame around the rotation fulcrum shaft (82). Since the lock part which locks in the state which rotated (81b) was comprised between the said main frame (81a) and the side frame (81b), the inner upper part of the side leveling body was rotated up and down to the center leveling body outer side upper part. Since the side leveling body can be pivoted upward and stored, the rice transplanter can be stored on the loading platform of the transport vehicle. Alternatively, the side leveling bodies on both sides can be rotated to the inside of the machine body, and the left and right width of the leveling apparatus can be shortened and stored.

また、サイドロータ軸と中央ロータ軸の結合部材を該嵌合凹部と嵌合凸部とを突き合わせて嵌合させることにより、該中央ロータ軸とサイドロータ軸を同軸状に強固に結合させることができ、ロータ駆動時に相互にぶれたり、芯ずれを起こしたりすることなく着実に回動を伝えることができる。 In addition , the coupling member of the side rotor shaft and the central rotor shaft can be firmly coupled coaxially with the central rotor shaft and the side rotor shaft by fitting the fitting concave portion and the fitting convex portion together. Thus, the rotation can be transmitted steadily without shaking each other or causing misalignment when the rotor is driven.

また、整地装置作業時及び収納時に、サイド整地体を作業位置及び収納位置にロック部により固定することができるのである。
また、該サイドロータ等は機体と分離することがないので、長期間収納した場合でも紛失等の虞がなく、さらに固定時に工具を必要としないので、作業者の負担を軽減できる。 In addition , the side leveling body can be fixed to the working position and the storage position by the lock portion when the leveling device is operated and stored .
Further, since the side rotor and the like are not separated from the airframe, there is no risk of loss even when stored for a long period of time, and further, no tool is required at the time of fixing, so that the burden on the operator can be reduced.

次に、発明の実施の形態を説明する。 Next, embodiments of the invention will be described.

なお、本発明の技術的範囲は実施例に限定されるものではなく、本明細書及び図面に記載した事項から明らかになる、本発明が真に意図する技術的思想の範囲全体に、広く及ぶものである。 It should be noted that the technical scope of the present invention is not limited to the embodiments, but extends to the entire scope of the technical idea that the present invention truly intends, as will be apparent from the matters described in the present specification and drawings. Is.

図１は本発明に係る田植機の側面図である。図２は田植機の整地装置の側面図である。図３は整地装置本体の正面図である。図４は整地装置本体の回動連結部分の正面図である。図５は整地装置本体の回動連結部分の平面図である。図６は整地装置本体の回動連結部分の収納位置での斜視図である。図７は整地装置本体の別実施例の正面断面図である。 FIG. 1 is a side view of a rice transplanter according to the present invention. FIG. 2 is a side view of the leveling device of the rice transplanter. FIG. 3 is a front view of the leveling device main body. FIG. 4 is a front view of a rotation connecting portion of the leveling device main body. FIG. 5 is a plan view of a rotationally connected portion of the leveling device main body. FIG. 6 is a perspective view of the rotational connection portion of the leveling device main body at the storage position. FIG. 7 is a front sectional view of another embodiment of the leveling device main body.

図１に示すＡは、本発明に係る田植機であり、該田植機Ａは、走行部１の後方に昇降機構３を介して植付部２を昇降自在に連結し、該植付部２に整地装置４を取り付けている。 A shown in FIG. 1 is a rice transplanter according to the present invention. The rice transplanter A is connected to a rear part of a traveling part 1 via a lifting mechanism 3 so that the planting part 2 can be raised and lowered. The leveling device 4 is attached to

走行部１は、機体フレーム１０の前部に原動機部１１を配設し、該原動機部１１の後方に運転部１２を配設すると共に、機体フレーム１０の前部下方にフロントアクスルケース（図示せず）を介して左右一対の前車輪１３・１３を取り付ける一方、機体フレーム１０の後部にリヤアクスルケース１４を介して左右一対の後車輪１５・１５を取り付けている。１６は、運転部１２に設けたハンドル、１７は、運転部１２に設けた運転席である。 The traveling unit 1 includes a motor unit 11 disposed at the front of the body frame 10, a driving unit 12 disposed behind the motor unit 11, and a front axle case (not shown) below the front of the body frame 10. And a pair of left and right rear wheels 15 and 15 are attached to the rear part of the body frame 10 via a rear axle case 14. Reference numeral 16 denotes a handle provided in the driving unit 12, and 17 denotes a driver seat provided in the driving unit 12.

植付部２は、横送りケース２５の前部より上方へ植付フレーム２６を立設して、該植付フレーム２６に苗載台２７を左右往復移動自在に取り付け、横送りケース２５の後部に設けた植付爪２８により苗載台２７上に載置した苗マットから苗株を切り取り圃場に植え付けるようにしている。２９はフロートである。 The planting unit 2 has a planting frame 26 erected upward from the front portion of the lateral feed case 25, and a seedling mount 27 is attached to the planting frame 26 so as to be reciprocally movable left and right. The seedlings are cut out from the seedling mat placed on the seedling placing stand 27 by the planting claws 28 provided on the seedling stand 27 and are planted in the field. 29 is a float.

昇降機構３は、走行部１の機体フレーム１０の後部に設けた立ち上がりフレーム形成体３０と、植付部２の植付フレーム２６との間に介設しており、トップリンク３１とロワリンク３２と、該ロワリンク３２を昇降させる昇降シリンダ（図示せず）とを具備している。このようにして、昇降シリンダによりトップリンク３１とロワリンク３２を介して植付部２を昇降させることができるようにしている。 The elevating mechanism 3 is interposed between the rising frame forming body 30 provided at the rear part of the body frame 10 of the traveling unit 1 and the planting frame 26 of the planting unit 2, and includes a top link 31 and a lower link 32. And an elevating cylinder (not shown) for elevating and lowering the lower link 32. In this way, the planting part 2 can be lifted and lowered via the top link 31 and the lower link 32 by the lifting cylinder.

整地装置４は、図２に示すように、植付部２の直前方に配置した整地装置本体３５と、走行部１のリヤアクスルケース１４の前壁に取り付けた伝動機構部３６と、該伝動機構部３６と上記整地装置本体３５との間に介設した整地伝動シャフト３７とを具備している。 As shown in FIG. 2, the leveling device 4 includes a leveling device main body 35 disposed immediately before the planting unit 2, a transmission mechanism 36 attached to the front wall of the rear axle case 14 of the traveling unit 1, and the transmission mechanism. A leveling transmission shaft 37 interposed between the section 36 and the leveling device main body 35 is provided.

整地装置本体３５は、中央整地体と、該中央整地体の左右一側または両側に設けるサイド整地体とから構成し、フロート２９の前方に左右方向に配置され、図２及び図３に示すように、植付部２の植付フレーム２６に取り付けた昇降支持機枠３８・３８と、該昇降支持機枠３８・３８の下端部間に横架した左・右側ロータ軸３９・３９と、各ロータ軸３９・３９の外周に同軸上に取り付けた複数のロータ４０と、略中央部において左右に隣接するロータ４０・４０間にて各ロータ軸３９・３９に連動連結して、走行部１に設けた原動機部１１からの動力を各ロータ軸３９・３９に伝動する伝動ケース４１と、ロータ４０上方を覆うロータケース３４・３４から構成している。ロータ４０はロータ軸３９から放射状に支持体を突設し、該支持体先端に羽根体を左右方向に取り付けて、回転させることにより圃場面を攪拌して均す構成としている。 The leveling device main body 35 includes a central leveling body and side leveling bodies provided on one or both sides of the central leveling body, and is disposed in the left-right direction in front of the float 29, as shown in FIGS. The lifting support machine frames 38 and 38 attached to the planting frame 26 of the planting part 2, left and right rotor shafts 39 and 39 horizontally mounted between the lower ends of the lifting support machine frames 38 and 38, and A plurality of rotors 40 coaxially attached to the outer circumferences of the rotor shafts 39 and 39, and the rotor shafts 39 and 39 that are connected to each other between the rotors 40 and 40 that are adjacent to each other at the substantially central portion are connected to the traveling unit 1. It is comprised from the transmission case 41 which transmits the motive power from the provided motor | power_engine part 11 to each rotor shaft 39 * 39, and the rotor cases 34 * 34 which cover rotor 40 upper direction. The rotor 40 has a structure in which a support member is radially provided from the rotor shaft 39, a blade member is attached to the tip of the support member in the left-right direction, and is rotated to agitate and smooth the field scene.

前記伝動ケース４１内には、整地伝動シャフト３７の後部にユニバーサルジョイントを介して連結される軸線を前方に向けた入力軸と、ロータ軸と連結される軸線を左右に向けた出力軸が、歯車を噛合させる等の伝動伝達機構により連結され配置されている。これにより、原動機部１１からの回動を伝動機構部３６→整地伝動シャフト３７→入力軸→出力軸→ロータ軸３９・３９と伝達し、各ロータ軸３９・３９の外周に取り付けたロータ４０・４０を回動させて整地作業を行うことができるようにしている。 In the transmission case 41, an input shaft with the axis connected to the rear portion of the leveling transmission shaft 37 through a universal joint directed forward and an output shaft with the axis connected to the rotor shaft directed left and right are gears. Are connected and arranged by a transmission transmission mechanism such as meshing. As a result, the rotation from the prime mover 11 is transmitted to the transmission mechanism 36 → the leveling transmission shaft 37 → the input shaft → the output shaft → the rotor shafts 39 and 39, and the rotors 40 and 40 attached to the outer circumferences of the rotor shafts 39 and 39. 40 is rotated so that the leveling work can be performed.

ここで、昇降支持機枠３８・３８は、植付フレーム２６に左右一対の枢支ブラケット４２・４２を介して左右方向に伸延する回動支軸４３を回動自在に横架し、該回動支軸４３の左右側部より前方へ向けて左右一対の昇降アーム４４・４４を突設し、各昇降アーム４４・４４の先端部に上下方向に伸延して枢支されるリンク４５・４５を介して上下方向に伸延する左右一対の摺動ロッド４６・４６の上端部を枢結している。そして、左右一対の摺動ロッド４６・４６は、植付フレーム２６に取り付けた左右一対のガイド体４７・４７に中途部を上下摺動自在にガイドさせており、下端部にて左・右側ロータ軸３９・３９の各左右中途部を枢支している。また、回動支軸４３の中央部には、前後方向に伸延する昇降操作レバー４８の基端部を取り付けている。 Here, the lifting support machine frames 38 and 38 are rotatably mounted on the planting frame 26 with a pivotal support shaft 43 extending in the left-right direction via a pair of left and right pivot support brackets 42 and 42. A pair of left and right lifting arms 44, 44 project forward from the left and right side portions of the movable support shaft 43, and are vertically supported by links 45, 45 extending in the vertical direction at the distal ends of the lifting arms 44, 44. The upper ends of a pair of left and right sliding rods 46, 46 extending in the vertical direction are pivotally connected to each other. The pair of left and right sliding rods 46 and 46 guide the middle part of the pair of left and right guide bodies 47 and 47 attached to the planting frame 26 so as to be slidable in the vertical direction. The left and right middle portions of the shafts 39 and 39 are pivotally supported. In addition, a proximal end portion of an elevating operation lever 48 extending in the front-rear direction is attached to the central portion of the rotation support shaft 43.

このようにして、昇降操作レバー４８を上下方向に回動操作することにより、左右一対の摺動ロッド４６・４６を上下方向に摺動させて、左・右側ロータ軸３９・３９に取り付けたロータ４０を、圃場面に接地させた使用位置と、圃場面から離隔させた不使用位置との間で昇降させることができるようにしている。 In this way, by rotating the up / down operation lever 48 in the up / down direction, the pair of left / right sliding rods 46/46 are slid in the up / down direction, and the rotor attached to the left / right rotor shafts 39/39. 40 can be moved up and down between a use position grounded to the farm scene and a non-use position separated from the farm scene.

ロータ軸３９・３９は、植付部２に前記昇降支持機枠３８・３８を介して支持された中央ロータ軸３９ａ・３９ａと、各中央ロータ軸３９ａ・３９ａの外側端部の少なくとも左右いずれか一側端部に連結したサイドロータ軸３９ｂ・３９ｂとから形成している。そして、該中央ロータ軸３９ａ・３９ａの外周には、同軸上にそれぞれ複数の中央側ロータ４０ａが取り付けられ、サイドロータ軸３９ｂ・３９ｂの外周には、同軸上にそれぞれ複数のサイドロータ４０ｂを取り付けている。該中央ロータ軸３９ａ・３９ａは、昇降支持機枠３８・３８の一部を形成する摺動ロッド４６・４６の下端部に設けた中央ロータ軸支持部材５２・５２に枢支されている。 The rotor shafts 39 and 39 are at least one of left and right of the central rotor shafts 39a and 39a supported by the planting part 2 via the lifting support frame 38 and 38 and the outer end portions of the central rotor shafts 39a and 39a. It is formed from side rotor shafts 39b and 39b connected to one end portion. A plurality of central rotors 40a are coaxially attached to the outer circumferences of the central rotor shafts 39a and 39a, and a plurality of side rotors 40b are coaxially attached to the outer circumferences of the side rotor shafts 39b and 39b. ing. The central rotor shafts 39a and 39a are pivotally supported by central rotor shaft support members 52 and 52 provided at lower ends of sliding rods 46 and 46 forming a part of the lifting support machine frame 38 and 38, respectively.

本発明の実施例１に係る整地装置本体３５のサイド整地体の収納構成について説明する。図３及び図６に示すように、摺動ロッド４６・４６には主フレーム８１ａ・８１ａが機体外側に向かって延設されており、該主フレーム８１ａ・８１ａの先端部にサイドフレーム８１ｂ・８１ｂが回動支点軸８２・８２を介して回動可能に軸支されている。そして、該サイドフレーム８１ｂ・８１ｂの下面には前方及び下方を開放した箱型に形成したサイドロータケース５４・５４が固設されており、該サイドロータケース５４・５４にサイドロータ軸３９ｂ・３９ｂの両側が回転自在に枢支されている。 The storage structure of the side leveling body of the leveling apparatus main body 35 according to the first embodiment of the present invention will be described. As shown in FIGS. 3 and 6, main frames 81a and 81a are extended on the sliding rods 46 and 46 toward the outer side of the machine body, and side frames 81b and 81b are provided at the front ends of the main frames 81a and 81a. Is pivotally supported via pivotal fulcrum shafts 82 and 82. Side rotor cases 54 and 54 formed in a box shape with the front and bottom open are fixed to the lower surfaces of the side frames 81b and 81b, and side rotor shafts 39b and 39b are fixed to the side rotor cases 54 and 54, respectively. Both sides of the are pivotably supported.

図４乃至図６を用いて、前記サイドロータ軸３９ｂ及びサイドロータ４０ｂの構造について説明する。図４は整地装置本体の回動連結部分の正面図、図５は整地装置本体の回動連結部分の平面図、図６は整地装置本体の回動連結部分の収納位置での斜視図である。なお、図６においては中央側ロータ４０ａ及びサイドロータ４０ｂは省略してある。前記中央ロータ軸３９ａの外側端部には円板状に構成した動力伝達部材４９ａの中心部が固設され、サイドロータ軸３９ｂの内側端部には円板状に構成した被動力伝達部材４９ｂの中心部が固設されている。そして、本実施例では被動力伝達部材４９ｂと対向する側の動力伝達部材４９ａの突き合わせ面の中心部分には嵌合孔８４ａが開口され、該嵌合孔８４ａを挟んでその両側に嵌合孔５３ａ・５３ａが開口されている。一方、被動力伝達部材４９ｂの動力伝達部材４９ａと対向する面には、中心部分に前記嵌合孔８４ａに挿入可能な嵌合ピン８４ｂが突出され、該嵌合ピン８４ｂを挟んでその両側に前記嵌合孔５３ａ・５３ａに挿入可能な嵌合ピン５３ｂ・５３ｂが突設されている。こうして、整地装置本体３５を拡幅して作業状態とする場合は、該嵌合孔８４ａと嵌合ピン８４ｂを嵌合させて軸中心の位置決めを行い、嵌合孔５３ａ・５３ａと嵌合ピン５３ｂ・５３ｂをそれぞれ嵌合させることで、中央ロータ軸３９ａからサイドロータ軸３９ｂに動力を伝達可能としている。 The structure of the side rotor shaft 39b and the side rotor 40b will be described with reference to FIGS. FIG. 4 is a front view of the rotational connection portion of the leveling device body, FIG. 5 is a plan view of the rotational connection portion of the leveling device body, and FIG. 6 is a perspective view of the rotational connection portion of the leveling device body at the storage position. . In FIG. 6, the central rotor 40a and the side rotor 40b are omitted. A central portion of a disc-shaped power transmission member 49a is fixed to an outer end portion of the central rotor shaft 39a, and a disc-shaped driven power transmission member 49b is configured to an inner end portion of the side rotor shaft 39b. The center of is fixed. In this embodiment, a fitting hole 84a is opened at the center of the abutting surface of the power transmission member 49a on the side facing the power transmission member 49b, and fitting holes are formed on both sides of the fitting hole 84a. 53a and 53a are opened. On the other hand, a fitting pin 84b that can be inserted into the fitting hole 84a protrudes at the center of the face of the driven force transmission member 49b that faces the power transmission member 49a, and on both sides of the fitting pin 84b. Fitting pins 53b and 53b that can be inserted into the fitting holes 53a and 53a are projected. In this way, when the leveling device main body 35 is widened to be in a working state, the fitting hole 84a and the fitting pin 84b are fitted to perform positioning of the shaft center, and the fitting holes 53a and 53a and the fitting pin 53b are positioned. The power can be transmitted from the central rotor shaft 39a to the side rotor shaft 39b by fitting the respective 53b.

なお、動力伝達部材４９ａの嵌合孔５３ａ・５３ａの他に、角度を変えて他の嵌合孔５３ｃ・５３ｃや５３ｄ・５３ｄ等を設けることにより、該動力伝達部材４９ａと被動力伝達部材４９ｂを付き合わせる際の回転角の自由度を高めることができる。また、嵌合孔と嵌合ピンを配置する側は実施例に限定されるものではなく、動力伝達部材４９ａに嵌合ピンを、被動力伝達部材４９ｂに嵌合孔を形成する構成としてもよく、また、嵌合孔と嵌合ピンの代わりに、溝形状の凹部と該凹部に嵌合する凸部等を設ける構成としても良い。 In addition to the fitting holes 53a and 53a of the power transmission member 49a, other fitting holes 53c and 53c, 53d and 53d, and the like are provided at different angles so that the power transmission member 49a and the driven transmission member 49b are provided. It is possible to increase the degree of freedom of the rotation angle when attaching the. Further, the side on which the fitting hole and the fitting pin are arranged is not limited to the embodiment, and the fitting pin may be formed in the power transmission member 49a and the fitting hole may be formed in the driven transmission member 49b. Moreover, it is good also as a structure which provides the convex part etc. which fit a groove-shaped recessed part and this recessed part instead of a fitting hole and a fitting pin.

前記サイドフレーム８１ｂと主フレーム８１ａを回動自在に連結する回動支点軸８２は、平面視略Ｊ字状に形成され、該回動支点軸８２の長軸側８２ａが主フレーム８１ａの先端に設けた軸孔に挿入して回動自在に枢支され、回動支点軸８２の短軸側８２ｃ先端をロック部として一体的に構成している。該ロック部となる短軸側８２ｃ先端は、主フレーム８１ａの先端に開口した作業位置嵌合部となる固定孔８７、または、主フレーム８１ａの前記軸孔の斜め上部に固定した収納位置嵌合部となる固定用ボス８８に挿入可能としている。長軸側８２ａと短軸側８２ｃの間のＵ字部分８２ｂは把手として容易に操作できるようにしている。そして、長軸側８２ａは主フレーム８１ａ及びサイドフレーム８１ｂに摺動自在、かつ、回動自在に貫入され、主フレーム８１ａと長軸側８２ａ先端との間にバネ８６が介装されて、回動支点軸８２をロック方向に付勢している。 A pivot fulcrum shaft 82 that pivotably connects the side frame 81b and the main frame 81a is formed in a substantially J shape in plan view, and the long axis side 82a of the pivot fulcrum shaft 82 is at the tip of the main frame 81a. It is inserted into the provided shaft hole and is pivotally supported so as to be rotatable, and the tip of the short shaft side 82c of the rotation fulcrum shaft 82 is integrally formed as a lock portion. The distal end of the short shaft side 82c serving as the lock portion is a fixed hole 87 serving as a work position fitting portion opened at the distal end of the main frame 81a, or a storage position fitting fixed to an oblique upper portion of the shaft hole of the main frame 81a. It can be inserted into the fixing boss 88 which becomes a part. A U-shaped portion 82b between the long axis side 82a and the short axis side 82c is designed to be easily operated as a handle. The long axis side 82a is slidably and rotatably inserted into the main frame 81a and the side frame 81b, and a spring 86 is interposed between the main frame 81a and the front end of the long axis side 82a. The dynamic fulcrum shaft 82 is urged in the locking direction.

そして、整地装置本体３５を拡幅した作業状態とする場合は、サイドフレーム８１ｂ、サイドロータケース５４、サイドロータ軸３９ｂ及びサイドロータ４０ｂを回動支点軸８２の長軸側８２ａを中心に機体外側に水平方向に回動し、正面視で主フレーム８１ａとサイドフレーム８１ｂを一直線上に配置した状態で、回動支点軸８２の短軸側８２ｃを固定ピンとしてサイドフレーム８１ｂ及び主フレーム８１ａに開口された固定孔８７に貫入することで、該サイドロータ４０ｂ等を作業位置に固定することができるのである。一方、トラックの荷台に載せたり、格納したり、路上走行する場合などで、整地装置本体３５を短幅化してサイド整地体を収納する場合は、回動支点軸８２をバネ８６に抗して前方へ引っ張ることで、短軸側８２ｃを主フレーム８１ａの固定孔８７から抜き、この状態で、サイドフレーム８１ｂ、サイドロータケース５４、サイドロータ軸３９ｂ及びサイドロータ４０ｂを長軸側８２ａを中心に上方に回動し、短軸側８２ｃを主フレーム８１ａ上面に固定した固定用ボス８８に挿入することで、サイドロータ４０ｂ等を収納位置に保持してロックすることができるのである。 When the leveling device main body 35 is in a widened working state, the side frame 81b, the side rotor case 54, the side rotor shaft 39b, and the side rotor 40b are placed on the outer side of the machine body around the long axis side 82a of the rotation fulcrum shaft 82. With the main frame 81a and the side frame 81b arranged in a straight line when viewed from the front, it is opened in the side frame 81b and the main frame 81a with the short axis side 82c of the rotation fulcrum shaft 82 as a fixed pin. The side rotor 40b and the like can be fixed at the working position by penetrating into the fixing hole 87. On the other hand, when placing the side leveling body by shortening the leveling device main body 35, such as when placing it on the truck bed, storing it, or traveling on the road, the rotating fulcrum shaft 82 is resisted against the spring 86. By pulling forward, the short shaft side 82c is removed from the fixing hole 87 of the main frame 81a. In this state, the side frame 81b, the side rotor case 54, the side rotor shaft 39b, and the side rotor 40b are centered on the long shaft side 82a. By rotating upward and inserting the short shaft side 82c into the fixing boss 88 fixed to the upper surface of the main frame 81a, the side rotor 40b and the like can be held and locked in the storage position.

以上により、サイドロータ軸３９ｂ等が正面視回動自在に軸支されているので、田植機Ａを運搬車の荷台に載せて搬送する際には、左右のロータ側端部を機体内側に回動させて収納し、整地装置本体３５の左右幅を短幅化して収めることができる。また、中央ロータ軸３９ａとサイドロータ軸３９ｂを嵌合孔８４ａ・５３ａ・５３ａと嵌合ピン８４ｂ・５３ｂ・５３ｂとを突き合わせて嵌合させることにより、該中央ロータ軸３９ａとサイドロータ軸３９ｂを同軸上に強固に結合させることができ、ロータ４０の駆動時に相互にぶれたり、芯ずれを起こしたりすることなく確実に回動を伝えることができる。さらに、整地装置本体３５の作業時及び収納時に、サイドロータ４０ｂ等を作業位置及び収納位置に簡単な構造かつワンタッチで固定することができ、コストを下げることができる。また、該サイドロータ４０ｂは機体と分離することがないので、長期間収納した場合でも紛失等の虞がなく、さらに固定時に工具を必要としないので、作業者の負担を軽減できる。 As described above, the side rotor shaft 39b and the like are pivotally supported so as to be rotatable in front view. Therefore, when the rice transplanter A is transported on the loading platform of the transport vehicle, the left and right rotor side ends are turned inside the body. The leveling device main body 35 can be stored by being moved and shortened. Further, the central rotor shaft 39a and the side rotor shaft 39b are fitted to each other by fitting the fitting holes 84a, 53a, 53a and the fitting pins 84b, 53b, 53b into contact with each other. It can be firmly coupled on the same axis, and the rotation can be reliably transmitted without being shaken or causing misalignment when the rotor 40 is driven. Further, when the leveling device main body 35 is operated and stored, the side rotor 40b and the like can be fixed to the work position and the storage position with a simple structure and one touch, and the cost can be reduced. Further, since the side rotor 40b is not separated from the airframe, there is no risk of loss even when stored for a long period of time, and further, no tool is required at the time of fixing, so the burden on the operator can be reduced.

次に、図７を用いて本発明の実施例２について説明する。図７は整地装置本体の別実施例の正面断面図である。本実施例において、実施例１と同一部品は同一符号を付して説明は省略する。本実施例では、中央ロータ軸３９ａ及びサイドロータ軸３９ｂは中空管として構成されており、中央ロータ軸３９ａの外側端内には杆状の連結部材９３が挿入配置されている。該連結部材９３の端面からは雌ネジ部９３ａが形成されている。また、前記サイドロータ軸３９ｂの内外両端部にはパイプ状の内側ガイド部材９５ａ及び外側ガイド部材９５ｂが固設され、該ガイド部材９５ａ、９５ｂの軸心部に外側から連結杆９１が該サイドロータ軸３９ｂを貫通して配置されている。また該連結杆９１には、外側ガイド部材９５ｂの機体外側に位置するように該外側ガイド部材９５ｂの孔より径を大きく形成した平座金９４が溶接配置され、内側ガイド部材９５ａの機体内側に位置するように該内側ガイド部材９５ａの孔より径を大きく形成した図示しない止め輪が配置される。このように構成することで、連結杆９１の雄ネジ部９１ａを連結部材９３の雌ネジ部９３ａから外した際に該止め輪が内側ガイド部材９５ａに当接し、連結杆９１がサイドロータ軸３９ｂから抜け出るのを防止している。さらに該連結杆９１の外端に把持部９２が固設され、内側端部外周に雄ネジ部９１ａが形成される。そして、該連結杆９１はサイドロータ軸３９ｂよりも長く形成して、雄ネジ部９１ａが雌ネジ部９３ａに螺合固定するようにしている。こうして、格納時や荷台に載せて搬送するために、整地装置本体３５の幅を短くする場合には、把持部９２を手で回動させて連結杆９１の雄ネジ部９１ａを連結部材９３の雌ネジ部９３ａから外すことにより、該連結杆９１、サイドロータ軸３９ｂ、サイドロータ４０ｂ、被動力伝達部材４９ｂ及び嵌合ピン５３ｂ・５３ｂを組立部品として一体的に取り外すことができる。逆に作業をする場合には、嵌合孔５３ａ・５３ａと嵌合ピン５３ｂ・５３ｂを突き合わせて嵌合させ、把持部９２を手動で回動させることにより、連結杆９１の雄ネジ部９１ａと連結部材９３の雌ネジ部９３ａを螺合させ、前記平座金９４が外側ガイド部材９５ｂに当接するまで締め付けるのである。こうして、該連結杆９１、サイドロータ軸３９ｂ、サイドロータ４０ｂ、被動力伝達部材４９ｂ及び嵌合ピン５３ｂ・５３ｂを組立部品として一体的に作業位置に固定するのである。なお、ロータケースは取り付けることも、なくす構成とすることも可能である。 Next, Embodiment 2 of the present invention will be described with reference to FIG. FIG. 7 is a front sectional view of another embodiment of the leveling device main body. In the present embodiment, the same components as those in the first embodiment are denoted by the same reference numerals, and description thereof is omitted. In the present embodiment, the central rotor shaft 39a and the side rotor shaft 39b are configured as hollow tubes, and a hook-like connecting member 93 is inserted and disposed in the outer end of the central rotor shaft 39a. A female threaded portion 93 a is formed from the end surface of the connecting member 93. Further, pipe-like inner guide members 95a and outer guide members 95b are fixed to both inner and outer end portions of the side rotor shaft 39b, and connecting rods 91 are connected to the shaft center portions of the guide members 95a and 95b from the outside. It is disposed through the shaft 39b. A flat washer 94 having a diameter larger than the hole of the outer guide member 95b is welded to the connecting rod 91 so as to be positioned on the outer side of the outer guide member 95b, and positioned on the inner side of the inner guide member 95a. Thus, a retaining ring (not shown) having a diameter larger than the hole of the inner guide member 95a is arranged. With this configuration, when the male screw portion 91a of the connecting rod 91 is removed from the female screw portion 93a of the connecting member 93, the retaining ring comes into contact with the inner guide member 95a, and the connecting rod 91 is connected to the side rotor shaft 39b. To prevent you from getting out. Further, a grip portion 92 is fixed to the outer end of the connecting rod 91, and a male screw portion 91a is formed on the outer periphery of the inner end portion. The connecting rod 91 is formed longer than the side rotor shaft 39b, and the male screw portion 91a is screwed and fixed to the female screw portion 93a. Thus, when the width of the leveling device main body 35 is shortened for storage or transportation on the loading platform, the gripping portion 92 is rotated by hand so that the male screw portion 91a of the connecting rod 91 is connected to the connecting member 93. By removing from the female screw portion 93a, the connecting rod 91, the side rotor shaft 39b, the side rotor 40b, the driven force transmission member 49b, and the fitting pins 53b and 53b can be integrally removed. On the contrary, when the work is performed, the fitting holes 53a and 53a and the fitting pins 53b and 53b are abutted and fitted, and the gripping portion 92 is manually rotated, so that the male threaded portion 91a of the connecting rod 91 and The female screw portion 93a of the connecting member 93 is screwed and tightened until the flat washer 94 comes into contact with the outer guide member 95b. In this way, the connecting rod 91, the side rotor shaft 39b, the side rotor 40b, the driven force transmission member 49b, and the fitting pins 53b and 53b are integrally fixed to the working position as assembly parts. The rotor case can be attached or eliminated.

以上により、田植機Ａを運搬車の荷台に載せて搬送する際の積み降ろし作業時や収納時に、少なくとも左右どちらか一方、または、両方のロータを取り外して整地装置本体３５の左右幅を短幅化して収めることができる。また、中央ロータ軸３９ａとサイドロータ軸３９ｂを嵌合孔５３ａ・５３ａと嵌合ピン５３ｂ・５３ｂとを突き合わせて嵌合させることにより、該中央ロータ軸３９ａとサイドロータ軸３９ｂを同軸状に強固に結合させることができ、ロータ４０の駆動時に相互にぶれたり、芯ずれを起こしたりすることなく確実に回動を伝えることができる。さらに、整地装置本体３５の操作時に、サイドロータ４０ｂ等を作業位置に簡単な構造で固定することができ、コストを下げることができる。さらに固定時に工具を必要としないので、作業者の負担を軽減できる。 As described above, at the time of loading and unloading when storing the rice transplanter A on the carrier bed, and at the time of storage, at least one of the left and right rotors or both of the rotors is removed to shorten the horizontal width of the leveling device main body 35. Can be stored. In addition, the central rotor shaft 39a and the side rotor shaft 39b are fitted into each other by abutting the fitting holes 53a and 53a with the fitting pins 53b and 53b so that the central rotor shaft 39a and the side rotor shaft 39b are firmly coaxially fixed. Therefore, the rotation can be reliably transmitted without causing vibration or misalignment when the rotor 40 is driven. Further, when the leveling device main body 35 is operated, the side rotor 40b and the like can be fixed to the work position with a simple structure, and the cost can be reduced. Furthermore, since a tool is not required at the time of fixation, an operator's burden can be reduced.

本発明に係る田植機の側面図。The side view of the rice transplanter concerning the present invention. 田植機の整地装置の側面図。A side view of a leveling device of a rice transplanter. 整地装置本体の正面図。The front view of a leveling apparatus main body. 整地装置本体の回動連結部分の正面図。The front view of the rotation connection part of a leveling apparatus main body. 整地装置本体の回動連結部分の平面図。The top view of the rotation connection part of a leveling apparatus main body. 整地装置本体の回動連結部分の収納位置での斜視図。The perspective view in the storage position of the rotation connection part of a leveling apparatus main body. 整地装置本体の別実施例の正面断面図。Front sectional drawing of another Example of a leveling apparatus main body.

Ａ田植機
１走行部
２植付部
３昇降機構
４整地装置
３５整地装置本体
３６伝動機構部
３７整地伝動シャフト
３８昇降支持機枠
３９ロータ軸
４０ロータ
８２回動支点軸 A rice transplanter 1 traveling unit 2 planting unit 3 lifting mechanism 4 leveling device 35 leveling device body 36 transmission mechanism unit 37 leveling transmission shaft 38 lifting support frame 39 rotor shaft 40 rotor 82 rotation fulcrum shaft

Claims

The planting part (2) is connected to the rear of the traveling part (1) so as to be movable up and down, and the leveling device main body (35) for leveling the farm scene in front of the float (29) of the planting part (2) in the left-right direction in the arrangement for rice transplanter (a), the side the leveling device main body (35) and the central ground leveling member, and composed of a side leveling member provided on one lateral side or both sides of the central ground leveling member, the central ground leveling member outer upper An inner upper part of the leveling body is pivotally supported so as to be pivotable up and down, and the side leveling body is pivoted upward to be housed. The central leveling body has a central rotor shaft (39a 39a), a transmission case (41) for transmitting power to the central rotor shaft (39a, 39a), a rotor (40) mounted on the rotor shaft (39), and a rotor covering above the rotor (40) configure from the case (34), the side leveling member, the side Data case (54), a side rotor shaft (39b) pivotally supported on both sides of the side rotor case (54), a rotor (40b) mounted on the side rotor shaft (39b), and the side rotor It is composed of a side frame (81b) attached to the case (54), and a main frame (81a) is extended from the side of the central leveling body toward the outside of the machine body, and at the tip of the main frame (81a), A side frame (81b) attached to the side leveling body is pivotally supported via a rotation fulcrum shaft (82) so as to be pivotable up and down, and a disk is disposed on the outer end of the central rotor shaft (39a). The center portion of the power transmission member (49b) configured in a disk shape is fixed, and the center portion of the power transmission member (49b) configured in a disk shape is also fixed to the inner end portion of the side rotor shaft (39b). The power transmission member ( 9a) and a driven transmission member (49b) on one side facing each other, a fitting hole (84a) is opened at the center of the abutting surface, and fitted on both sides of the fitting hole (84a). A joint hole (53a, 53a) is opened, and the other end on the side where the power transmission member (49a) and the power transmission member (49b) face each other can be inserted into the fitting hole (84a) at the center portion. A fitting pin (84b) protrudes, and fitting pins (53b, 53b) that can be inserted into the fitting holes (53a, 53a) are provided on both sides of the fitting pin (84b) so as to project the ground leveling. When the device main body (35) is widened to be in a working state, the fitting hole (84a) and the fitting pin (84b) are fitted to perform positioning of the shaft center, and the power transmission member (49a) The fitting pin (53b / 53b) and the fitting hole (53a / 5) of the driven transmission member (49b) 3b) are respectively fitted so that power can be transmitted from the central rotor shaft (39a) to the side rotor shaft (39b), and the side frame (81b) is rotated around the rotation fulcrum shaft (82). A rice transplanter characterized in that a lock portion that locks in a state is configured between the main frame (81a) and the side frame (81b) .