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JP6948933B2 - Ground leveling device - Google Patents
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JP6948933B2 - Ground leveling device - Google Patents

Ground leveling device Download PDF

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JP6948933B2
JP6948933B2 JP2017241633A JP2017241633A JP6948933B2 JP 6948933 B2 JP6948933 B2 JP 6948933B2 JP 2017241633 A JP2017241633 A JP 2017241633A JP 2017241633 A JP2017241633 A JP 2017241633A JP 6948933 B2 JP6948933 B2 JP 6948933B2
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ground leveling
outer peripheral
drive shaft
leveling body
boss portion
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JP2019106913A (en
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敏之 日熊
敏之 日熊
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Kubota Corp
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Description

本発明は、例えば乗用型田植機や乗用型直播機等の植播系作業機において、植播系作業機の後部に支持された作業装置と、植播系作業機の後輪との間に配置される整地装置に関する。 According to the present invention, in a planting system working machine such as a riding type rice transplanter or a riding type direct seeding machine, between a working device supported at the rear of the planting system working machine and the rear wheel of the planting system working machine. Regarding the ground leveling device to be placed.

植播系作業機の一例である乗用型田植機では、特許文献1に開示されているように、機体の後部に支持された苗植付装置(作業装置に相当)と、機体の後輪との間に、整地装置を備えて、整地装置により田面を整地しながら、苗植付装置による苗の言え付けを行うように構成されたものがある。 In a passenger-type rice transplanter, which is an example of a planting system work machine, as disclosed in Patent Document 1, a seedling planting device (corresponding to a work device) supported at the rear part of the machine body and a rear wheel of the machine body are used. In between, there is one that is equipped with a ground leveling device and is configured to use the seedling planting device to plant seedlings while leveling the rice field surface with the ground leveling device.

特許文献1の整地装置では、左右方向に沿って回転駆動自在に配置された駆動軸と、駆動軸の外周部に取り付けられた整地体とが備えられて、軸支持部により駆動軸が回転自在に支持されている。これにより、駆動軸及び整地体が回転駆動されながら、整地体により田面が整地される。 The ground leveling device of Patent Document 1 is provided with a drive shaft rotatably arranged along the left-right direction and a ground leveling body attached to the outer peripheral portion of the drive shaft, and the drive shaft can be rotated by a shaft support portion. Is supported by. As a result, the ground surface is leveled by the ground leveling body while the drive shaft and the ground leveling body are rotationally driven.

特開2009−291146号公報(図1,2,3,6参照)JP-A-2009-291146 (see FIGS. 1, 2, 3 and 6)

田面には、ワラ屑等の夾雑物が浮いていることが多いので、整地装置において、整地体が回転駆動されて田面が整地される際に、夾雑物が整地体の左右方向での端部に巻き付いたり、整地体の左右方向での端部から内側に入り込むことがあり、整地装置の整地性能の低下につながる可能性がある。 Since contaminants such as straw waste are often floating on the surface of the rice field, when the ground leveling body is rotationally driven to level the ground in the ground leveling device, the contaminants are the ends of the leveling body in the left-right direction. It may wrap around the ground or get inside from the left and right ends of the leveling body, which may lead to deterioration of the leveling performance of the leveling device.

本発明は、整地装置において、田面の夾雑物が、整地体の左右方向での端部に巻き付いたり、整地体の左右方向での端部から内側に入り込んだりする状態を防止することを目的としている。 An object of the present invention is to prevent a state in which contaminants on a field surface are wrapped around the left-right end of the ground-leveling body or enter the inside from the left-right end of the ground-leveling body in the ground-leveling device. There is.

本発明は、植播系作業機の後部に支持された作業装置と、前記植播系作業機の後輪との間に配置される整地装置において、
左右方向に沿って回転駆動自在に配置された駆動軸と、前記駆動軸の外周部に取り付けられた整地体と、前記駆動軸を回転自在に支持する軸支持部とが備えられ、
前記駆動軸に設けられて、前記整地体の左右方向での端部を覆うカバーが備えられ、
前記カバーに、
外周部と、前記外周部に対して前記駆動軸側に配置されて前記外周部から左右方向に偏倚するように前記外周部に接続された中間部と、前記中間部に接続されたボス部とが設けられて、
前記駆動軸が前記ボス部に挿入され、前記中間部が前記整地体の横側部に左右方向の横側から入り込み、前記外周部が前記整地体の横側部の外周部分に左右方向の横側から接触するように配置されており、
前記ボス部が、前記中間部から、前記中間部に対して前記外周部の反対側に向けて延出され、
前記駆動軸が挿入される整地体ボス部が、前記整地体に設けられて、
前記駆動軸が前記整地体ボス部に挿入された状態で、前記整地体ボス部が前記ボス部に挿入される。
The present invention relates to a ground leveling device arranged between a working device supported at the rear of a planting system working machine and a rear wheel of the planting system working machine.
A drive shaft rotatably arranged along the left-right direction, a ground leveling body attached to the outer peripheral portion of the drive shaft, and a shaft support portion for rotatably supporting the drive shaft are provided.
A cover provided on the drive shaft to cover the left-right end of the leveling body is provided.
On the cover
An outer peripheral portion, an intermediate portion arranged on the drive shaft side with respect to the outer peripheral portion and connected to the outer peripheral portion so as to deviate from the outer peripheral portion in the left-right direction, and a boss portion connected to the intermediate portion. Is provided,
The drive shaft is inserted into the boss portion, the intermediate portion enters the lateral portion of the ground leveling body from the lateral side in the left-right direction, and the outer peripheral portion is lateral to the outer peripheral portion of the lateral side portion of the ground leveling body in the left-right direction. Arranged so that they come into contact from the side ,
The boss portion extends from the intermediate portion toward the opposite side of the outer peripheral portion with respect to the intermediate portion.
A ground leveling body boss portion into which the drive shaft is inserted is provided in the ground leveling body.
The ground leveling body boss portion is inserted into the boss portion while the drive shaft is inserted into the ground leveling body boss portion.

本発明によると、整地装置において、整地体の左右方向での端部がカバーによって覆われるので、夾雑物が整地体の左右方向での端部に巻き付いたり、整地体の左右方向での端部から内側に入り込んだりする状態を、カバーにより防止して少なくすることができる。
これにより、田面の夾雑物の巻き付き等による整地装置の整地性能の低下を防止することができる。
According to the present invention, in the ground leveling device, since the left-right end of the leveling body is covered by the cover, contaminants may wrap around the left-right end of the leveling body or the left-right end of the leveling body. The state of getting inside from the inside can be prevented by the cover and reduced.
As a result, it is possible to prevent the ground leveling performance of the ground leveling device from being deteriorated due to the wrapping of impurities on the surface of the field.

本発明によると、カバーの外周部とボス部との間の中間部が、カバーの外周部から左右方向に偏倚するように形成されており、カバーが取り付けられた状態において、カバーの中間部が整地体の横側部に入り込む。これにより、整地体の横側部の空間を有効に利用して、カバーをコンパクトに配置することができる。
本発明によると、カバーの中間部が整地体の横側部に入り込む場合、カバーのボス部が整地体ボス部に外嵌される状態となるので、整地体ボス部の影響を受けることなく、カバーの中間部が整地体の横側部に無理なく入り込むことができる。
According to the present invention, the intermediate portion between the outer peripheral portion and the boss portion of the cover is formed so as to deviate from the outer peripheral portion of the cover in the left-right direction, and when the cover is attached, the intermediate portion of the cover is formed. Enter the lateral part of the ground leveling body. As a result, the cover can be arranged compactly by effectively utilizing the space on the lateral side of the ground leveling body.
According to the present invention, when the intermediate portion of the cover enters the lateral portion of the ground leveling body, the boss portion of the cover is fitted onto the ground leveling body boss portion, so that the boss portion of the cover is not affected by the ground leveling body boss portion. The middle part of the cover can easily enter the lateral part of the ground leveling body.

本発明において、
前記軸支持部が、前記整地体に隣接するように配置されて、
前記軸支持部の左右方向に突出する突出部が、前記整地体の反対側から前記中間部に入り込むと好適である。
In the present invention
The shaft support portion is arranged so as to be adjacent to the leveling body,
It is preferable that the projecting portion of the shaft support portion projecting in the left-right direction enters the intermediate portion from the opposite side of the ground leveling body.

整地装置において、軸支持部には、駆動軸を回転自在支持する為にベアリング等が内装されているので、ベアリング等を支持する為の容積を確保する為に、軸支持部から左右方向に突出する突出部が設けられていることがある。 In the ground leveling device, a bearing or the like is built in the shaft support portion to rotatably support the drive shaft. Therefore, in order to secure a volume for supporting the bearing or the like, the shaft support portion protrudes in the left-right direction. May be provided with a protruding portion.

カバーの中間部が整地体の横側部に入り込んだ状態において、前述のような軸支持部が整地体に隣接するように配置された場合、本発明によると、軸支持部の突出部がカバーの中間部に整地体の反対側から入り込む。 According to the present invention, when the shaft support portion as described above is arranged so as to be adjacent to the ground leveling body in a state where the middle portion of the cover is inserted into the lateral portion of the ground leveling body, the protruding portion of the shaft support portion covers the ground leveling body. Enter the middle part of the ground from the opposite side of the ground leveling body.

これにより、軸支持部の突出部が整地体の横側部に入り込む状態とすることができるので、整地体と軸支持部とを互いに接近させてコンパクトに配置することができる。整地体と軸支持部とが互いに接近した状態において、整地体と軸支持部との間に、カバーを無理なく配置することができる。 As a result, the protruding portion of the shaft support portion can be brought into the lateral portion of the ground leveling body, so that the ground leveling body and the shaft support portion can be placed close to each other in a compact manner. The cover can be reasonably arranged between the ground leveling body and the shaft support portion in a state where the ground leveling body and the shaft support portion are close to each other.

本発明において、
前記駆動軸の外周面が、断面において円形ではない異形形状に形成されて、前記整地体ボス部の内周面が、断面において前記駆動軸の外周面と同じ形状に形成され、
前記整地体ボス部の外周面が、断面において円形ではない異形形状に形成されて、前記ボス部の内周面が、断面において前記整地体ボス部の外周面と同じ形状に形成されていると好適である。
In the present invention
The outer peripheral surface of the drive shaft is formed in a deformed shape that is not circular in the cross section, and the inner peripheral surface of the ground leveling body boss portion is formed in the same shape as the outer peripheral surface of the drive shaft in the cross section.
It is assumed that the outer peripheral surface of the ground leveling body boss portion is formed in a deformed shape that is not circular in the cross section, and the inner peripheral surface of the boss portion is formed in the same shape as the outer peripheral surface of the ground leveling body boss portion in the cross section. Suitable.

本発明によると、駆動軸に整地体を取り付ける場合、駆動軸の外周面及び整地体ボス部の内周面の異形形状により、整地体と駆動軸とを無理なく一体回転する状態とすることができる。 According to the present invention, when the ground leveling body is attached to the drive shaft, the ground leveling body and the drive shaft can be reasonably integrally rotated due to the irregular shape of the outer peripheral surface of the drive shaft and the inner peripheral surface of the ground leveling body boss portion. can.

同様に駆動軸にカバーを取り付ける場合、整地体ボス部の外周面及びカバーのボス部の内周面の異形形状により、カバーと駆動軸とを無理なく一体回転する状態とすることができる。 Similarly, when the cover is attached to the drive shaft, the cover and the drive shaft can be reasonably integrally rotated due to the irregular shape of the outer peripheral surface of the ground leveling body boss portion and the inner peripheral surface of the boss portion of the cover.

本発明において、
前記駆動軸の外周面と、前記整地体ボス部の内周面と、前記整地体ボス部の外周面と、前記ボス部の内周面とが、断面において同じ形状に形成されていると好適である。
In the present invention
It is preferable that the outer peripheral surface of the drive shaft, the inner peripheral surface of the ground leveling body boss portion, the outer peripheral surface of the ground leveling body boss portion, and the inner peripheral surface of the boss portion are formed in the same shape in the cross section. Is.

本発明によると、駆動軸の外周面及び整地体ボス部の内周面の異形形状と、整地体ボス部の外周面及びカバーのボス部の内周面の異形形状とが同じ形状であるので、全体の構造の簡素化の面で有利なものとなるのであり、整地体ボス部を比較的小径に構成することができる。 According to the present invention, the deformed shape of the outer peripheral surface of the drive shaft and the inner peripheral surface of the ground leveling body boss portion and the deformed shape of the outer peripheral surface of the ground leveling body boss portion and the inner peripheral surface of the cover boss portion are the same shape. This is advantageous in terms of simplification of the overall structure, and the boss portion of the ground leveling body can be configured to have a relatively small diameter.

本発明において、
前記中間部に、開口部が形成されていると好適である。
In the present invention
It is preferable that an opening is formed in the intermediate portion.

本発明によると、田面の状態や整地装置の状態に応じて、水や泥がカバーの開口部を通って、整地体の外側及び内側に移動するようになるので、整地装置の整地性能の向上の面で有利なものとなる。カバーの中間部に開口部を形成することにより、カバーの軽量化の面でも有利なものとなる。 According to the present invention, water and mud move to the outside and inside of the leveling body through the opening of the cover according to the state of the field surface and the state of the leveling device, so that the leveling performance of the leveling device is improved. It will be advantageous in terms of. By forming an opening in the middle portion of the cover, it is also advantageous in terms of weight reduction of the cover.

乗用型田植機の側面図である。It is a side view of a passenger-type rice transplanter. 整地装置の横断平面図である。It is a cross-sectional plan view of the ground leveling device. 整地装置の右部の縦断正面図である。It is a vertical sectional front view of the right part of the ground leveling apparatus. カバーの断面図及び側面図である。It is a cross-sectional view and a side view of a cover. 発明の実施の第1別形態において、整地装置の右部の縦断正面図である。It is a vertical sectional front view of the right part of the ground leveling apparatus in the 1st alternative embodiment of the invention. 発明の実施の第1別形態において、駆動軸の右及び左の端部のカバーの断面図及び側面図である。FIG. 5 is a cross-sectional view and a side view of a cover at the right and left ends of the drive shaft in the first alternative embodiment of the invention. 発明の実施の第2別形態において、整地装置の右及び左の端部付近の縦断正面図である。In the second alternative embodiment of the invention, it is a longitudinal front view near the right and left ends of the ground leveling device. 発明の実施の第2別形態において、駆動軸及び連結軸の分解斜視図である。It is an exploded perspective view of the drive shaft and the connecting shaft in the 2nd alternative embodiment of the invention.

本発明の実施形態において、植播系作業機の一例である乗用型田植機が示されている。
本発明の実施形態における前後方向及び左右方向は、特段の説明がない限り、以下のように記載している。機体11の走行時における前進側の進行方向が「前」であり、後進側の進行方向が「後」である。前後方向での前向き姿勢を基準として右側に相当する方向が「右」であり、左側に相当する方向が「左」である。
In the embodiment of the present invention, a riding type rice transplanter which is an example of a planting system working machine is shown.
Unless otherwise specified, the front-rear direction and the left-right direction in the embodiment of the present invention are described as follows. When the aircraft 11 is traveling, the traveling direction on the forward side is "forward", and the traveling direction on the reverse side is "rear". The direction corresponding to the right side is "right" and the direction corresponding to the left side is "left" with respect to the forward posture in the front-back direction.

(乗用型田植機の全体構成)
図1に示すように、乗用型田植機は、右及び左の前輪1、右及び左の後輪2を備えた機体11の後部に、リンク機構3及びリンク機構3を昇降駆動する油圧シリンダ4が備えられ、リンク機構3の後部に苗植付装置5(作業装置に相当)が支持されている。
(Overall configuration of passenger rice transplanter)
As shown in FIG. 1, in a passenger-type rice transplanter, a hydraulic cylinder 4 for raising and lowering a link mechanism 3 and a link mechanism 3 at the rear portion of an airframe 11 provided with right and left front wheels 1 and right and left rear wheels 2. Is provided, and a seedling planting device 5 (corresponding to a working device) is supported at the rear of the link mechanism 3.

苗植付装置5は、苗植付装置5の下部に左右方向に沿って配置された支持フレーム12(図2参照)、左右方向に所定間隔を置いて支持フレーム12に連結されて後向きに延出された植付伝動ケース6、植付伝動ケース6の後部の右側部及び左側部に回転自在に支持された回転ケース7、回転ケース7の両端に備えられた一対の植付アーム8、フロート9及び苗のせ台10等を備えている。 The seedling planting device 5 is connected to a support frame 12 (see FIG. 2) arranged in the lower part of the seedling planting device 5 along the left-right direction and a support frame 12 at a predetermined interval in the left-right direction and extends backward. The planting transmission case 6 that has been taken out, the rotating case 7 that is rotatably supported on the right and left sides of the rear part of the planting transmission case 6, a pair of planting arms 8 provided at both ends of the rotating case 7, and a float. It is equipped with 9 and a seedling stand 10 and the like.

機体11に、運転座席13、及び前輪1を操向操作する操縦ハンドル14が備えられている。機体11の前部の右部及び左部に右及び左の支持フレーム15が備えられており、支持フレーム15に予備苗のせ台16が支持されている。 The aircraft 11 is provided with a driver's seat 13 and a steering handle 14 for steering and operating the front wheels 1. Right and left support frames 15 are provided on the right and left portions of the front portion of the machine body 11, and the spare seedling rest 16 is supported by the support frame 15.

(前輪及び後輪への走行伝動系の構成)
図1に示すように、機体11の前部に、ミッションケース17が支持されており、ミッションケース17の前部に連結された支持フレーム18に、エンジン19が支持されている。
(Structure of running transmission system to front wheels and rear wheels)
As shown in FIG. 1, the mission case 17 is supported by the front portion of the airframe 11, and the engine 19 is supported by the support frame 18 connected to the front portion of the mission case 17.

ミッションケース17の左の横側部に、静油圧型式の無段変速装置20が連結されており、エンジン19の動力が伝動ベルト21を介して無段変速装置20に伝達される。無段変速装置20は、中立位置、前進側及び後進側に無段階に変速自在に構成されており、操縦ハンドル14の左の横側に備えられた変速レバー22により無段変速装置20を操作する。 A hydrostatic type continuously variable transmission 20 is connected to the left lateral side of the transmission case 17, and the power of the engine 19 is transmitted to the continuously variable transmission 20 via the transmission belt 21. The continuously variable transmission 20 is configured to be steplessly variable in the neutral position, the forward side and the reverse side, and the continuously variable transmission 20 is operated by the shift lever 22 provided on the left lateral side of the steering handle 14. do.

無段変速装置20の動力が、ミッションケース17の内部の副変速装置(図示せず)及び前輪デフ装置(図示せず)を介して右及び左の前輪1に伝達される。
右及び左の後輪2を支持する後車軸ケース23が、機体11の後部に支持されており、前輪デフ装置の直前から分岐した動力が、伝動軸24を介して後車軸ケース23に伝達され、後車軸ケース23の内部の伝動軸(図示せず)を介して、右及び左の後輪2に伝達される。
The power of the continuously variable transmission 20 is transmitted to the right and left front wheels 1 via the auxiliary transmission (not shown) and the front wheel differential device (not shown) inside the transmission case 17.
The rear axle case 23 that supports the right and left rear wheels 2 is supported at the rear of the fuselage 11, and the power branched from immediately before the front wheel differential device is transmitted to the rear axle case 23 via the transmission shaft 24. , It is transmitted to the right and left rear wheels 2 via a transmission shaft (not shown) inside the rear axle case 23.

(苗植付装置への作業伝動系の構成)
図1に示すように、ミッションケース17の内部に、株間変速装置(図示せず)及び植付クラッチ(図示せず)が備えられている。
(Structure of work transmission system to seedling planting device)
As shown in FIG. 1, an inter-stock transmission (not shown) and a planting clutch (not shown) are provided inside the mission case 17.

ミッションケース17において、無段変速装置20と副変速装置との間から分岐した動力が、株間変速装置及び植付クラッチを介して伝動軸25に伝達され、伝動軸25から苗植付装置5に伝達される。 In the mission case 17, the power branched from the continuously variable transmission 20 and the auxiliary transmission is transmitted to the transmission shaft 25 via the inter-stock transmission and the planting clutch, and is transmitted from the transmission shaft 25 to the seedling planting device 5. Be transmitted.

植付クラッチを伝動状態に操作すると、苗植付装置5に動力が伝達されて、苗植付装置5が作動する。図1に示すように、苗のせ台10が左右に往復横送り駆動されるのに伴って、回転ケース7が図1の反時計方向に回転駆動され、2組の植付アーム8が、苗のせ台10の下部から交互に苗を取り出して田面に植え付ける。
植付クラッチを遮断状態に操作すると、苗植付装置5への動力が遮断されて、苗植付装置5が停止し、苗のせ台10及び回転ケース7が停止する。
When the planting clutch is operated in the transmission state, power is transmitted to the seedling planting device 5 to operate the seedling planting device 5. As shown in FIG. 1, as the seedling pedestal 10 is driven to move laterally back and forth to the left and right, the rotating case 7 is rotationally driven in the counterclockwise direction of FIG. Seedlings are alternately taken out from the lower part of the pedestal 10 and planted on the surface of the rice field.
When the planting clutch is operated in the cut-off state, the power to the seedling planting device 5 is cut off, the seedling planting device 5 is stopped, and the seedling rest 10 and the rotary case 7 are stopped.

(整地装置の全体構成及び支持構成)
図1,2,3に示すように、整地装置26は、駆動軸34、整地体35、軸支持部29,30、泥除けカバー36及びカバー37等を備えている。
(Overall configuration and support configuration of the ground leveling device)
As shown in FIGS. 1, 2, and 3, the ground leveling device 26 includes a drive shaft 34, a ground leveling body 35, shaft support portions 29, 30, a mudguard cover 36, a cover 37, and the like.

苗植付装置5において、支持フレーム12に整地装置26が以下の説明のように支持されており、整地装置26が、図1に示すように、側面視で苗植付装置5と後輪2との間に配置された状態となっている。 In the seedling planting device 5, the ground leveling device 26 is supported by the support frame 12 as described below, and the ground leveling device 26 has the seedling planting device 5 and the rear wheel 2 in a side view as shown in FIG. It is in a state of being placed between and.

図1及び図2に示すように、支持フレーム12の前面部に、ブラケット27が斜め前の上向きに連結されている。丸パイプ状の支持軸28が、左右方向の軸芯P1周りに回転自在にブラケット27に支持されており、支持軸28に支持アーム28aが連結されて前向きに延出されている。 As shown in FIGS. 1 and 2, the bracket 27 is connected to the front surface of the support frame 12 diagonally forward and upward. A round pipe-shaped support shaft 28 is rotatably supported by a bracket 27 around a shaft core P1 in the left-right direction, and a support arm 28a is connected to the support shaft 28 and extends forward.

駆動軸34を回転自在に支持する軸支持部29,30において、軸支持部29,30から上向きにアーム部29a,30aが延出されている。支持軸28の支持アーム28aの前端部に、軸支持部29,30のアーム部29a,30aが、左右方向の軸芯P2周りに揺動自在に支持されている。 In the shaft support portions 29 and 30 that rotatably support the drive shaft 34, the arm portions 29a and 30a extend upward from the shaft support portions 29 and 30. At the front end of the support arm 28a of the support shaft 28, the arm portions 29a and 30a of the shaft support portions 29 and 30 are swingably supported around the shaft core P2 in the left-right direction.

側面視で扇形状の昇降ギヤ31が、支持軸28の中央の支持アーム28aの上側に配置され、支持フレーム12において中央のブラケット27の上側に位置する左右方向の軸芯P3周りに上下揺動自在に支持されている。 A fan-shaped lifting gear 31 is arranged above the central support arm 28a of the support shaft 28 when viewed from the side, and swings up and down around the axis P3 in the left-right direction located above the central bracket 27 in the support frame 12. It is supported freely.

軸支持部29のアーム部29aにおいて軸芯P2よりも上側の部分に、昇降ギヤ31の前端部が揺動自在に接続されている。支持フレーム12に、ギヤケース32及び電動モータ33が支持されており、ギヤケース32のピニオンギヤ32aが昇降ギヤ31に咬合している。 The front end portion of the elevating gear 31 is swingably connected to a portion of the arm portion 29a of the shaft support portion 29 above the shaft core P2. The gear case 32 and the electric motor 33 are supported by the support frame 12, and the pinion gear 32a of the gear case 32 meshes with the elevating gear 31.

以上の構成により、整地装置26が、支持軸28(支持アーム28a)及びブラケット27を介して、支持フレーム12の前面部に支持された状態となっている。
電動モータ33によりギヤケース32のピニオンギヤ32aが回転駆動されることによって、昇降ギヤ31が軸芯P3周りに上下に揺動駆動されて、整地装置26の位置を上下に変更することができる。
With the above configuration, the ground leveling device 26 is supported by the front surface portion of the support frame 12 via the support shaft 28 (support arm 28a) and the bracket 27.
When the pinion gear 32a of the gear case 32 is rotationally driven by the electric motor 33, the elevating gear 31 is oscillated up and down around the axis P3, and the position of the leveling device 26 can be changed up and down.

昇降ギヤ31が軸支持部29のアーム部29aに接続されていることにより、昇降ギヤ31が停止した状態において、軸支持部29,30のアーム部29a,30aが、支持軸28の支持アーム28aの軸芯P2周りに前後に揺動することはなく、整地装置26の姿勢は固定されている。 Since the elevating gear 31 is connected to the arm portion 29a of the shaft support portion 29, the arm portions 29a and 30a of the shaft support portions 29 and 30 are connected to the support arm 28a of the support shaft 28 in a state where the elevating gear 31 is stopped. The posture of the ground leveling device 26 is fixed without swinging back and forth around the axis P2 of the above.

(整地装置における駆動軸、右及び左の軸支持部の構成)
図2及び図3に示すように、駆動軸34は、断面が4角形状のパイプによって形成されており、駆動軸34の外周面が、断面において円形ではない異形形状となっている。駆動軸34は、軸支持部29,30により左右方向に沿って配置され、左右方向の軸芯P4周りに回転自在に支持されている。
(Structure of drive shaft, right and left shaft support in ground leveling device)
As shown in FIGS. 2 and 3, the drive shaft 34 is formed by a pipe having a square cross section, and the outer peripheral surface of the drive shaft 34 has a deformed shape that is not circular in the cross section. The drive shaft 34 is arranged along the left-right direction by the shaft support portions 29 and 30, and is rotatably supported around the shaft core P4 in the left-right direction.

軸支持部30において、左右方向の両側に同じ長さで突出する突出部30bが備えられている。軸支持部30(突出部30b)の内部において、外面部が断面で円形のカラー38が、駆動軸34に外嵌されている。軸支持部30(突出部30b)の内部において、ベアリング39によりカラー38(駆動軸34)が支持され、ベアリング39の両側にシール部材40が設けられている。 The shaft support portion 30 is provided with protruding portions 30b protruding from both sides in the left-right direction with the same length. Inside the shaft support portion 30 (protruding portion 30b), a collar 38 having a circular outer surface in cross section is fitted onto the drive shaft 34. Inside the shaft support portion 30 (protruding portion 30b), the collar 38 (drive shaft 34) is supported by the bearing 39, and sealing members 40 are provided on both sides of the bearing 39.

図2に示すように、軸支持部30は後輪2の後側に位置しており、軸支持部30のアーム部30aに、泥除け板41が連結されて斜め後の上向きに延出されている。
これにより、後輪2により後側に飛ばされた泥が、泥除け板41により止められて、苗植付装置5等への泥の付着が防止されるのであり、泥除け板41に当たった泥が下側に滑り落ち易い。
As shown in FIG. 2, the shaft support portion 30 is located on the rear side of the rear wheel 2, and the mudguard plate 41 is connected to the arm portion 30a of the shaft support portion 30 and extends diagonally rearward upward. There is.
As a result, the mud blown to the rear side by the rear wheel 2 is stopped by the mud guard plate 41 to prevent the mud from adhering to the seedling planting device 5 and the like, and the mud that hits the mud guard plate 41 is prevented from adhering. Easy to slide down.

(整地装置における中央の軸支持部の構成及び駆動軸への伝動構成)
図2に示すように、駆動軸34の中央部において外面部が断面で円形のカラー42が、駆動軸34と一体回転するように駆動軸34に外嵌されている。軸支持部29において、左右方向の両側に異なる長さで突出する突出部29b,29cが備えられている。
(Structure of central shaft support in ground leveling device and transmission configuration to drive shaft)
As shown in FIG. 2, a collar 42 having a circular outer surface in a cross section at the center of the drive shaft 34 is fitted onto the drive shaft 34 so as to rotate integrally with the drive shaft 34. The shaft support portion 29 is provided with protruding portions 29b and 29c protruding from both sides in the left-right direction with different lengths.

軸支持部29がカラー42の左部に外嵌されて、軸支持部29の短い突出部29bが左側(外側)に向き、軸支持部29の長い突出部29cが右側(左右中央側)に向くように配置されている。 The shaft support portion 29 is fitted onto the left portion of the collar 42, the short protrusion 29b of the shaft support portion 29 faces the left side (outside), and the long protrusion 29c of the shaft support portion 29 faces the right side (left and right center side). It is arranged so that it faces.

軸支持部29(突出部29b,29c)の内部において、2個のベアリング39によりカラー42(駆動軸34)が支持され、ベアリング39の外側にシール部材40が設けられている。ベアリング39の間において、軸支持部29の短い突出部29b側に偏倚したカラー42に部分に、ベベルギヤ43が連結されている。 Inside the shaft support portion 29 (protruding portions 29b, 29c), the collar 42 (drive shaft 34) is supported by two bearings 39, and a seal member 40 is provided on the outside of the bearing 39. Between the bearings 39, the bevel gear 43 is connected to a portion of the collar 42 that is biased toward the short protrusion 29b side of the shaft support portion 29.

図1及び図2に示すように、軸支持部29に、斜め前の上向きのボス部29dが備えられている。軸支持部29のボス部29dに入力軸44が支持されて、入力軸44のベベルギヤ44aがベベルギヤ43と咬合している。 As shown in FIGS. 1 and 2, the shaft support portion 29 is provided with an obliquely forward upward boss portion 29d. The input shaft 44 is supported by the boss portion 29d of the shaft support portion 29, and the bevel gear 44a of the input shaft 44 is in mesh with the bevel gear 43.

後車軸ケース23の後部に、斜め後の下向きのボス部23aが備えられている。後車軸ケース23のボス部23aに出力軸45が支持されて、出力軸45と入力軸44とに亘って、伝動軸46が接続されている。 A downward boss portion 23a diagonally rearward is provided at the rear portion of the rear axle case 23. The output shaft 45 is supported by the boss portion 23a of the rear axle case 23, and the transmission shaft 46 is connected to the output shaft 45 and the input shaft 44.

これにより、後車軸ケース23において、後輪2に伝達される動力が分岐して出力軸45に伝達される。出力軸45の動力が、伝動軸46、入力軸44(ベベルギヤ44a)及びベベルギヤ43を介して、駆動軸34(カラー42)に伝達されて、駆動軸34が図1において反時計方向に回転駆動される。 As a result, in the rear axle case 23, the power transmitted to the rear wheels 2 is branched and transmitted to the output shaft 45. The power of the output shaft 45 is transmitted to the drive shaft 34 (color 42) via the transmission shaft 46, the input shaft 44 (bevel gear 44a), and the bevel gear 43, and the drive shaft 34 is rotationally driven in the counterclockwise direction in FIG. Will be done.

(整地装置における整地体の構成)
図2及び図3に示すように、多数の整地体35が用意され、多数の整地体35が駆動軸34に取り付けられることによって、整地装置26が構成されている。
(Structure of the ground leveling body in the ground leveling device)
As shown in FIGS. 2 and 3, a large number of ground leveling bodies 35 are prepared, and a large number of ground leveling bodies 35 are attached to the drive shaft 34 to form the ground leveling device 26.

図3に示すように、整地体35は、ボス部35a(整地体ボス部に相当)と、ボス部35aの外周部に設けられた平板状の支持部35bと、支持部35bの外周部分の複数個所に設けられた幅広の整地部35cとを備えて、合成樹脂により一体的に成形されている。 As shown in FIG. 3, the ground leveling body 35 includes a boss portion 35a (corresponding to the ground leveling body boss portion), a flat plate-shaped support portion 35b provided on the outer peripheral portion of the boss portion 35a, and an outer peripheral portion of the support portion 35b. It is provided with wide ground leveling portions 35c provided at a plurality of locations, and is integrally molded with a synthetic resin.

整地体35のボス部35aは、角パイプ状となっている。整地体35のボス部35aの内周面は、断面において4角形状(断面において円形ではない異形形状)となっており、駆動軸34の外周面と同じ形状に形成されている。
整地体35のボス部35aの外周面は、断面において4角形状(断面において円形ではない異形形状)となっており、駆動軸34の外周面と同じ形状に形成されている。
The boss portion 35a of the ground leveling body 35 has a square pipe shape. The inner peripheral surface of the boss portion 35a of the ground leveling body 35 has a square shape in cross section (a deformed shape that is not circular in cross section), and is formed in the same shape as the outer peripheral surface of the drive shaft 34.
The outer peripheral surface of the boss portion 35a of the ground leveling body 35 has a square shape in cross section (a deformed shape that is not circular in cross section), and is formed in the same shape as the outer peripheral surface of the drive shaft 34.

整地体35のボス部35aに駆動軸34が挿入されることにより、整地体35のボス部35aの内周面及び駆動軸34の外周面の4角形状によって、整地体35が駆動軸34と一体で回転する。 By inserting the drive shaft 34 into the boss portion 35a of the ground leveling body 35, the ground leveling body 35 becomes the drive shaft 34 due to the square shape of the inner peripheral surface of the boss portion 35a of the ground leveling body 35 and the outer peripheral surface of the drive shaft 34. It rotates as one.

図2及び図3に示すように、隣接する整地体35において、整地体35の整地部35cの横側部分(整地体35の横側部の外周部分)が互いに当たる点、軸支持部29,30において、整地体35のボス部35aがカラー38,42の端部に当たる点、並びに、駆動軸34の右及び左の端部において、整地体35がピン47により駆動軸34に固定(抜け止め)されている点により、駆動軸34において整地体35の位置が決められている。
これにより、軸支持部29,30が、整地体35に隣接するように配置された状態となっている。
As shown in FIGS. 2 and 3, in the adjacent ground leveling bodies 35, the points where the lateral portions of the ground leveling portion 35c of the ground leveling body 35 (the outer peripheral portion of the lateral side portion of the ground leveling body 35) hit each other, the shaft support portion 29, At the point where the boss portion 35a of the ground leveling body 35 hits the ends of the collars 38 and 42, and at the right and left ends of the drive shaft 34, the ground leveling body 35 is fixed to the drive shaft 34 by the pin 47 (prevention of coming off). ), The position of the leveling body 35 is determined on the drive shaft 34.
As a result, the shaft support portions 29 and 30 are arranged so as to be adjacent to the ground leveling body 35.

軸支持部29,30のアーム部29a,30aから横向きに、受け部29e,30cが延出されている。軸支持部29,30の受け部29e,30cに、泥除けカバー36が連結されて、泥除けカバー36が整地体35の後側に配置されている。 The receiving portions 29e and 30c extend laterally from the arm portions 29a and 30a of the shaft supporting portions 29 and 30. The mudguard cover 36 is connected to the receiving portions 29e and 30c of the shaft support portions 29 and 30, and the mudguard cover 36 is arranged on the rear side of the ground leveling body 35.

これにより、駆動軸34と一体で整地体35が回転駆動されて、整地体35の整地部35cにより田面が整地される。整地体35により泥が後側に飛ばされても、飛ばされた泥は泥除けカバー36により止められる。 As a result, the ground leveling body 35 is rotationally driven integrally with the drive shaft 34, and the ground leveling portion 35c of the ground leveling body 35 prepares the ground surface. Even if the mud is blown to the rear side by the leveling body 35, the blown mud is stopped by the mud cover 36.

(整地装置におけるカバーの構成)
図2及び図3に示すように、カラー38,42に当たる整地体35の部分、駆動軸34の右及び左の端部の整地体35の部分の、合計8個のカバー37が備えられており、カバー37により、整地体35の左右方向での端部が覆われる状態となっている。8個のカバー37は全て同じ形状であり、共用である。
(Structure of cover in ground leveling device)
As shown in FIGS. 2 and 3, a total of eight covers 37 are provided, that is, a portion of the ground leveling body 35 corresponding to the collars 38 and 42, and a portion of the ground leveling body 35 at the right and left ends of the drive shaft 34. The cover 37 covers the ends of the leveling body 35 in the left-right direction. The eight covers 37 all have the same shape and are shared.

図4に示すように、カバー37は、外周部37a、中間部37b,37c、ボス部37d及び開口部37eを備えて、合成樹脂により一体的に成形されている。
カバー37の外周部37aは、平板のリング状である。カバー37の中間部37bは、外周部37aに対してボス部37d(駆動軸34)側に配置されており、外周部37aから左右方向に偏倚するように、外周部37aに接続された円錐面状である。
As shown in FIG. 4, the cover 37 includes an outer peripheral portion 37a, an intermediate portion 37b, 37c, a boss portion 37d, and an opening portion 37e, and is integrally molded with a synthetic resin.
The outer peripheral portion 37a of the cover 37 has a flat plate ring shape. The intermediate portion 37b of the cover 37 is arranged on the boss portion 37d (drive shaft 34) side with respect to the outer peripheral portion 37a, and is a conical surface connected to the outer peripheral portion 37a so as to deviate from the outer peripheral portion 37a in the left-right direction. It is in the shape.

カバー37の中間部37cは、中間部37bに対してボス部37d(駆動軸34)側に配置されており、外周部37aから左右方向に偏倚するように中間部37bに接続されたリング状(平板状)である。 The intermediate portion 37c of the cover 37 is arranged on the boss portion 37d (drive shaft 34) side with respect to the intermediate portion 37b, and is connected to the intermediate portion 37b so as to deviate from the outer peripheral portion 37a in the left-right direction. Flat plate).

カバー37のボス部37dは、中間部37cに接続された角パイプ状であり、中間部37cから外周部37a及び中間部37bの反対側に延出されている。
カバー37のボス部37dの内周面は、断面において4角形状(断面において円形ではない異形形状)となっており、整地体35のボス部35aの外周面と同じ形状に形成されている。
The boss portion 37d of the cover 37 has a square pipe shape connected to the intermediate portion 37c, and extends from the intermediate portion 37c to the opposite side of the outer peripheral portion 37a and the intermediate portion 37b.
The inner peripheral surface of the boss portion 37d of the cover 37 has a square shape in cross section (a deformed shape that is not circular in cross section), and is formed in the same shape as the outer peripheral surface of the boss portion 35a of the ground leveling body 35.

これにより、駆動軸34の外周面と、整地体35のボス部35aの内周面と、整地体35のボス部35aの外周面と、カバー37のボス部37dの内周面とが、断面において同じ形状である4角形状に形成されている。 As a result, the outer peripheral surface of the drive shaft 34, the inner peripheral surface of the boss portion 35a of the ground leveling body 35, the outer peripheral surface of the boss portion 35a of the ground leveling body 35, and the inner peripheral surface of the boss portion 37d of the cover 37 are cross-sectioned. It is formed in a square shape having the same shape in the above.

カバー37の開口部37eは長孔状であり、カバー37の外周部37aの一部、中間部37b、中間部37cの一部に亘って、複数の開口部37eが半径方向に沿って放射状に開口されている。 The opening 37e of the cover 37 has an elongated hole shape, and a plurality of openings 37e radiate along the radial direction over a part of the outer peripheral portion 37a, the intermediate portion 37b, and the intermediate portion 37c of the cover 37. It is open.

(整地装置におけるカバーの取付構造)
図2,3,4に示すように、整地体35のボス部35aが、カバー37のボス部37dに挿入されている。
(Cover mounting structure for leveling equipment)
As shown in FIGS. 2, 3 and 4, the boss portion 35a of the ground leveling body 35 is inserted into the boss portion 37d of the cover 37.

これにより、駆動軸34がカバー37のボス部37dに挿入された状態となっている。
駆動軸34が整地体35のボス部35aに挿入された状態で、整地体35のボス部35aがカバー37のボス部37dに挿入された状態となっており、カバー37のボス部37dが整地体35のボス部35aに外嵌された状態となっている。
As a result, the drive shaft 34 is inserted into the boss portion 37d of the cover 37.
The drive shaft 34 is inserted into the boss portion 35a of the ground leveling body 35, the boss portion 35a of the ground leveling body 35 is inserted into the boss portion 37d of the cover 37, and the boss portion 37d of the cover 37 is leveled. It is in a state of being externally fitted to the boss portion 35a of the body 35.

カバー37の中間部37b,37c及びボス部37dが、整地体35のボス部35aと整地部35cとの間(整地体35の横側部)に横側から入り込む状態となっている。
カバー37の外周部37aが、整地体35の整地部35cの横側部分(整地体35の横側部の外周部分)に接触(隣接)する状態となっている。
軸支持部29,30の突出部29b,30bが、整地体35の反対側からカバー37の中間部37b,37cに近接するように入り込む状態となっている。
The intermediate portions 37b and 37c and the boss portion 37d of the cover 37 are in a state of being inserted from the lateral side between the boss portion 35a and the ground leveling portion 35c of the ground leveling body 35 (the lateral side portion of the ground leveling body 35).
The outer peripheral portion 37a of the cover 37 is in contact with (adjacent to) the lateral portion of the ground leveling portion 35c of the ground leveling body 35 (the outer peripheral portion of the lateral side portion of the ground leveling body 35).
The protruding portions 29b and 30b of the shaft support portions 29 and 30 are in a state of entering from the opposite side of the ground leveling body 35 so as to approach the intermediate portions 37b and 37c of the cover 37.

駆動軸34の右及び左の端部のカバー37は、整地体35を駆動軸34に固定(抜け止め)するピン47により、受け止めされている。これ以外のカバー37は、カバー37のボス部37dがカラー38,42の端部に当たっているので、ピン47は取り付けられていない。 The covers 37 at the right and left ends of the drive shaft 34 are received by pins 47 that fix (prevent) the ground leveling body 35 to the drive shaft 34. In the other covers 37, the pin 47 is not attached because the boss portion 37d of the cover 37 hits the ends of the collars 38 and 42.

(発明の実施の第1別形態)
図3及び図4に示すカバー37に代えて、図5に示すように、カバー37のボス部37dを、中間部37cから外周部37a及び中間部37b側に延出するように構成してもよい。
(First alternative form of carrying out the invention)
Instead of the cover 37 shown in FIGS. 3 and 4, as shown in FIG. 5, the boss portion 37d of the cover 37 may be configured to extend from the intermediate portion 37c to the outer peripheral portion 37a and the intermediate portion 37b. good.

この構成によると、カバー37の中間部37bを長いものに形成することができるのであり、カバー37の中間部37cを、外周部37aから左右方向に大きく偏倚させることができる。これにより、カバー37の中間部37b,37c及びボス部37dを、整地体35のボス部35aと整地部35cとの間(整地体35の横側部)に横側から、深く入り込ませることができる。 According to this configuration, the intermediate portion 37b of the cover 37 can be formed to be long, and the intermediate portion 37c of the cover 37 can be largely deviated from the outer peripheral portion 37a in the left-right direction. As a result, the intermediate portions 37b and 37c and the boss portion 37d of the cover 37 can be deeply inserted from the lateral side between the boss portion 35a and the ground leveling portion 35c of the ground leveling body 35 (the lateral portion of the ground leveling body 35). can.

図3及び図4に示す駆動軸34の右及び左の端部のカバー37に代えて、図5及び図6に示すようなカバー48を使用してもよい。
カバー48は、平板部48a、ボス部48b及び開口部48cを備えて、合成樹脂により一体的に成形されている。
Instead of the cover 37 at the right and left ends of the drive shaft 34 shown in FIGS. 3 and 4, a cover 48 as shown in FIGS. 5 and 6 may be used.
The cover 48 includes a flat plate portion 48a, a boss portion 48b, and an opening portion 48c, and is integrally molded of synthetic resin.

カバー48の平板部48aは、平板の円板状である。カバー48のボス部48bは、平板部48aに接続された角パイプ状である。カバー48のボス部48bの内周面は、断面において4角形状(断面において円形ではない異形形状)となっており、整地体35のボス部35aの外周面と同じ形状に形成されている。
カバー48の開口部48cは長孔状であり、カバー48の平板部48aに、複数の開口部48cが半径方向に沿って放射状に開口されている。
The flat plate portion 48a of the cover 48 has a disk shape of a flat plate. The boss portion 48b of the cover 48 has a square pipe shape connected to the flat plate portion 48a. The inner peripheral surface of the boss portion 48b of the cover 48 has a square shape in cross section (a deformed shape that is not circular in cross section), and is formed in the same shape as the outer peripheral surface of the boss portion 35a of the ground leveling body 35.
The opening 48c of the cover 48 has an elongated hole shape, and a plurality of openings 48c are radially opened in the flat plate portion 48a of the cover 48 along the radial direction.

(発明の実施の第2別形態)
図3及び図5に示す駆動軸34の右及び左の端部のカバー37,48を取り外して、駆動軸34の右及び左の端部に、整地体35を追加することがある。この場合、図7及び図8に示すように構成してもよい。
(Second alternative form of carrying out the invention)
Covers 37 and 48 at the right and left ends of the drive shaft 34 shown in FIGS. 3 and 5 may be removed, and a leveling body 35 may be added to the right and left ends of the drive shaft 34. In this case, it may be configured as shown in FIGS. 7 and 8.

駆動軸34と同じ形状の短い駆動軸49が備えられて、駆動軸49に整地体35とカバー48(図5及び図6参照)が、ピン47により取り付けられている。チャンネル状の短い連結軸50が、駆動軸49に挿入されて、溶接により駆動軸49に連結されている。
これにより、整地体35、カバー48、駆動軸49及び連結軸50が、一つのユニットとなっている。
A short drive shaft 49 having the same shape as the drive shaft 34 is provided, and a ground leveling body 35 and a cover 48 (see FIGS. 5 and 6) are attached to the drive shaft 49 by pins 47. A short channel-shaped connecting shaft 50 is inserted into the drive shaft 49 and connected to the drive shaft 49 by welding.
As a result, the ground leveling body 35, the cover 48, the drive shaft 49, and the connecting shaft 50 become one unit.

駆動軸34の右(左)の端部からカバー37,48を取り外した状態で、連結軸50を駆動軸34の右(左)の端部に挿入し、整地体35の整地部35cの横側部分(整地体35の横側部の外周部分)を当てて、ピン47を連結軸50及び駆動軸34の右(左)の端部に挿入して、駆動軸49及び連結軸50の抜け止めを行う。 With the covers 37 and 48 removed from the right (left) end of the drive shaft 34, the connecting shaft 50 is inserted into the right (left) end of the drive shaft 34, and the side of the leveling portion 35c of the ground leveling body 35. The pin 47 is inserted into the right (left) end of the connecting shaft 50 and the driving shaft 34 by touching the side portion (the outer peripheral portion of the lateral side of the ground leveling body 35), and the driving shaft 49 and the connecting shaft 50 are pulled out. Stop it.

これにより、連結軸50の外周面が駆動軸34の右(左)の端部の内周面に接触する状態となって、整地体35、カバー48、駆動軸49及び連結軸50が、駆動軸34と一体で回転する状態となる。 As a result, the outer peripheral surface of the connecting shaft 50 comes into contact with the inner peripheral surface of the right (left) end of the drive shaft 34, and the ground leveling body 35, the cover 48, the drive shaft 49, and the connecting shaft 50 are driven. It is in a state of rotating integrally with the shaft 34.

(発明の実施の第3別形態)
駆動軸34の外周面と、整地体35のボス部35aの内周面及び外周面と、カバー37のボス部37dの内周面を、断面において5角形状や6角形状、小判形状等(断面において円形ではない異形形状)に形成してもよい。
(Third alternative form of carrying out the invention)
The outer peripheral surface of the drive shaft 34, the inner and outer peripheral surfaces of the boss portion 35a of the ground leveling body 35, and the inner peripheral surface of the boss portion 37d of the cover 37 have a pentagonal shape, a hexagonal shape, an oval shape, etc. in cross section. It may be formed into a deformed shape that is not circular in cross section).

駆動軸34の外周面と整地体35のボス部35aの内周面に対して、整地体35のボス部35aの外周面及びカバー37のボス部37dの内周面を、断面において異なる形状に形成してもよい。 The outer peripheral surface of the drive shaft 34 and the inner peripheral surface of the boss portion 35a of the ground leveling body 35 have different shapes in cross section from the outer peripheral surface of the boss portion 35a of the ground leveling body 35 and the inner peripheral surface of the boss portion 37d of the cover 37. It may be formed.

(発明の実施の第4別形態)
整地装置26において、苗植付装置5に伝達された動力が、苗植付装置5で分岐して、整地装置26に伝達されるように構成してもよい。
整地装置26を、リンク機構3に支持機構(図示せず)を介して連結してもよく、機体11から後側に延出された支持機構(図示せず)に連結してもよい。
(Fourth alternative form of carrying out the invention)
In the ground leveling device 26, the power transmitted to the seedling planting device 5 may be branched by the seedling planting device 5 and transmitted to the seedling planting device 26.
The ground leveling device 26 may be connected to the link mechanism 3 via a support mechanism (not shown), or may be connected to a support mechanism (not shown) extending rearward from the machine body 11.

本発明は、乗用型田植機ばかりではなく、田面に種子を供給する播種装置(図示せず)(作業装置に相当)を機体11の後部に支持した乗用型播種機にも適用できる。 The present invention can be applied not only to a riding-type rice transplanter, but also to a riding-type seeding machine in which a sowing device (not shown) (corresponding to a working device) for supplying seeds to the rice field surface is supported at the rear of the machine body 11.

2 後輪
5 苗植付装置(作業装置)
34 駆動軸
35 整地体
35a ボス部(整地体ボス部)
29,30 軸支持部
29b,30b 突出部
37 カバー
37a 外周部
37b,37c 中間部
37d ボス部
37e 開口部


2 Rear wheel 5 Seedling planting device (working device)
34 Drive shaft 35 Ground leveling body 35a Boss part (ground leveling body boss part)
29,30 Shaft support 29b, 30b Protruding part 37 Cover 37a Outer peripheral part 37b, 37c Intermediate part 37d Boss part 37e Opening


Claims (5)

植播系作業機の後部に支持された作業装置と、前記植播系作業機の後輪との間に配置される整地装置であって、
左右方向に沿って回転駆動自在に配置された駆動軸と、前記駆動軸の外周部に取り付けられた整地体と、前記駆動軸を回転自在に支持する軸支持部とが備えられ、
前記駆動軸に設けられて、前記整地体の左右方向での端部を覆うカバーが備えられ、
前記カバーに、
外周部と、前記外周部に対して前記駆動軸側に配置されて前記外周部から左右方向に偏倚するように前記外周部に接続された中間部と、前記中間部に接続されたボス部とが設けられて、
前記駆動軸が前記ボス部に挿入され、前記中間部が前記整地体の横側部に左右方向の横側から入り込み、前記外周部が前記整地体の横側部の外周部分に左右方向の横側から接触するように配置されており、
前記ボス部が、前記中間部から、前記中間部に対して前記外周部の反対側に向けて延出され、
前記駆動軸が挿入される整地体ボス部が、前記整地体に設けられて、
前記駆動軸が前記整地体ボス部に挿入された状態で、前記整地体ボス部が前記ボス部に挿入される整地装置。
A ground leveling device arranged between a work device supported at the rear of a planting system work machine and a rear wheel of the planting system work machine.
A drive shaft rotatably arranged along the left-right direction, a ground leveling body attached to the outer peripheral portion of the drive shaft, and a shaft support portion for rotatably supporting the drive shaft are provided.
A cover provided on the drive shaft to cover the left-right end of the leveling body is provided.
On the cover
An outer peripheral portion, an intermediate portion arranged on the drive shaft side with respect to the outer peripheral portion and connected to the outer peripheral portion so as to deviate from the outer peripheral portion in the left-right direction, and a boss portion connected to the intermediate portion. Is provided,
The drive shaft is inserted into the boss portion, the intermediate portion enters the lateral portion of the ground leveling body from the lateral side in the left-right direction, and the outer peripheral portion is lateral to the outer peripheral portion of the lateral side portion of the ground leveling body in the left-right direction. Arranged so that they come into contact from the side ,
The boss portion extends from the intermediate portion toward the opposite side of the outer peripheral portion with respect to the intermediate portion.
A ground leveling body boss portion into which the drive shaft is inserted is provided in the ground leveling body.
A ground leveling device in which the ground leveling body boss portion is inserted into the boss portion while the drive shaft is inserted into the ground leveling body boss portion.
前記軸支持部が、前記整地体に隣接するように配置されて、
前記軸支持部の左右方向に突出する突出部が、前記整地体の反対側から前記中間部に入り込む請求項1に記載の整地装置。
The shaft support portion is arranged so as to be adjacent to the leveling body,
The ground leveling device according to claim 1, wherein the protruding portion of the shaft support portion protruding in the left-right direction enters the intermediate portion from the opposite side of the ground leveling body.
前記駆動軸の外周面が、断面において円形ではない異形形状に形成されて、前記整地体ボス部の内周面が、断面において前記駆動軸の外周面と同じ形状に形成され、
前記整地体ボス部の外周面が、断面において円形ではない異形形状に形成されて、前記ボス部の内周面が、断面において前記整地体ボス部の外周面と同じ形状に形成されている請求項1又は2に記載の整地装置。
The outer peripheral surface of the drive shaft is formed in a deformed shape that is not circular in the cross section, and the inner peripheral surface of the ground leveling body boss portion is formed in the same shape as the outer peripheral surface of the drive shaft in the cross section.
Claims the outer peripheral surface of the ground leveling member boss portion, is formed in a deformed shape not circular in cross-section, the inner peripheral surface of the boss portion is formed in the same shape as the outer peripheral surface of the ground leveling member boss portion in the cross section Item 2. The ground leveling device according to Item 1 or 2.
前記駆動軸の外周面と、前記整地体ボス部の内周面と、前記整地体ボス部の外周面と、
前記ボス部の内周面とが、断面において同じ形状に形成されている請求項3に記載の整地装置。
The outer peripheral surface of the drive shaft, the inner peripheral surface of the ground leveling body boss portion, and the outer peripheral surface of the ground leveling body boss portion.
The ground leveling device according to claim 3 , wherein the inner peripheral surface of the boss portion has the same shape in cross section.
前記中間部に、開口部が形成されている請求項1〜4のうちのいずれか一項に記載の整地装置。 The ground leveling device according to any one of claims 1 to 4 , wherein an opening is formed in the intermediate portion.
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IT1201744B (en) * 1986-11-06 1989-02-02 Scudellato Loris SMALL PLANT TRANSPLANTING MACHINE
JP4113457B2 (en) * 2003-05-14 2008-07-09 三菱農機株式会社 Graft leveling device for transplanter
JP4769212B2 (en) * 2007-03-12 2011-09-07 株式会社クボタ Paddy field machine
JP2008228600A (en) * 2007-03-17 2008-10-02 Yanmar Co Ltd Rice transplanter
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JP2009017798A (en) * 2007-07-10 2009-01-29 Kubota Corp Ride type rice transplanter
JP5825859B2 (en) * 2011-06-06 2015-12-02 株式会社クボタ Paddy field machine
JP6134679B2 (en) * 2014-03-14 2017-05-24 ヤンマー株式会社 Seedling transplanter
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