JP7709684B2

JP7709684B2 - combine

Info

Publication number: JP7709684B2
Application number: JP2023070718A
Authority: JP
Inventors: 智洋谷上; 達也三宅; 光瑠上田; 伯郎高橋; 豊文吉田
Original assignee: Iseki and Co Ltd
Current assignee: Iseki and Co Ltd
Priority date: 2023-04-24
Filing date: 2023-04-24
Publication date: 2025-07-17
Anticipated expiration: 2043-04-24
Also published as: JP2024156340A

Description

本発明は、刈取装置に複数の引起装置を備えるコンバインに関するものである。 The present invention relates to a combine harvester equipped with multiple lifting devices on the harvesting device.

刈取装置の上部に配置された左右方向に延在する伝動筒と左右方向の中間に配置された引起装置を２本のアームで形成されたリンクで連結して、刈取装置の搬送装置に詰まった穀稈を取除く場合には、リンクを前側に移動させて引起装置を前側に引出す技術が知られていた。（特許文献１参照） A technology was known in which a transmission tube extending in the left-right direction, located at the top of the harvesting device, was connected to a lifting device located in the middle in the left-right direction by a link formed of two arms, and when removing stalks stuck in the conveying device of the harvesting device, the link was moved forward to pull out the lifting device. (See Patent Document 1)

また、刈取装置の上部に配置された左右方向に延在する伝動筒と左右方向の中間に配置された引起装置を上下方向に延在する支軸に回転自在に固定して、刈取装置の搬送装置に詰まった穀稈を取除く場合には、引起装置を支軸回りに回転させる技術が知られていた。（特許文献２参照） In addition, a technology was known in which a transmission tube extending in the left-right direction, which is located at the top of the harvesting device, and a lifting device, which is located in the middle in the left-right direction, are rotatably fixed to a vertically extending support shaft, and when removing stalks stuck in the conveying device of the harvesting device, the lifting device is rotated around the support shaft. (See Patent Document 2)

さらに、刈取装置の上部に配置された左右方向に延在する伝動筒と左右方向の中間に配置された引起装置を上下方向に延在する支軸に回転自在に固定して、刈取装置の搬送装置に詰まった穀稈を取除く場合には、一側の引起装置を支軸回りに時計方向に回転させ、他側の引起装置を支軸回りに反時計方向に回転させる技術が知られていた。（特許文献３参照） Furthermore, a technology was known in which a transmission tube extending in the left-right direction, located at the top of the harvesting device, and a lifting device located in the middle in the left-right direction were rotatably fixed to a vertically extending support shaft, and when removing stalks stuck in the conveying device of the harvesting device, the lifting device on one side was rotated clockwise around the support shaft, and the lifting device on the other side was rotated counterclockwise around the support shaft. (See Patent Document 3)

特開２０１２－２９５６８号公報JP 2012-29568 A 特開２０１２－１３９１１８号公報JP 2012-139118 A 特開２０１３－９９３０１号公報JP 2013-99301 A

しかし、特許文献１～３の技術では、刈取装置の搬送装置の前側に大きな作業空間を確保できないので、作業姿勢が制限されて搬送装置に詰まった穀稈を容易に取除くことが難しいという問題があった。 However, the techniques described in Patent Documents 1 to 3 do not provide a large working space in front of the harvesting device's transport device, which limits the working posture and makes it difficult to easily remove stalks that have become stuck in the transport device.

そこで、本発明の課題は、刈取装置の搬送装置の前側に大きな作業空間を確保し、搬送装置に詰まった穀稈の取除き作業中に、作業者が誤って頭部を引起装置にぶつけるのを防止することができ、また、引起装置の摺動部等に圃場の土が付着するのを抑制することができるコンバインを提供することにある。 The objective of the present invention is to provide a combine harvester that can secure a large working space in front of the transport device of the harvesting device, prevent the worker from accidentally hitting his head against the lifting device while removing the stalks that have become stuck in the transport device, and prevent soil from the field from adhering to the sliding parts of the lifting device, etc.

上記課題を解決した本発明は次のとおりである。
すなわち、請求項１記載の発明は、エンジンを搭載した機体フレーム（１）の前側に刈取装置（３）を設け、該刈取装置（３）の後方左側に脱穀装置（４）を設け、前記刈取装置（３）の後方右側に操縦部（５）を設けたコンバインにおいて、
前記刈取装置（３）の刈取フレーム（１０）に、穀稈を分草する分草体（１６）と、分草された穀稈を引起こす引起装置（１７，７０）と、引起こされた穀稈の株元を切断する刈刃装置（１８）と、切断された穀稈を挟持して前記脱穀装置（４）に搬送する搬送装置（１９）を設け、前記引起装置（１７，７０）の背面の上部に第１フック（８７）を設け、前記引起装置（１７，７０）の背面の上下方向の中間部の左右方向に一側に偏移した部位に上下方向に所定の間隔を隔てて一対の第２フック（８８）を設け、前記第１フック（８７）は、前記エンジンの出力回転が伝動される駆動スプロケット（５０）よりも上側に配置され、前記第２フック（８８）は、前記駆動スプロケット（５０）に係回されたチェンの設けられた引起ラグ（３５）を起立させて穀稈を引起こす側に配置され、前記刈取装置（３）の両側部に配置された分草体（１６）と操縦部（５）の昇降ガイド（５Ａ）には、前記刈取装置（３）から取外された引起装置（１７，７０）の第１フック（８７）を係止する留め具が形成され、前記脱穀装置（４）の脱穀カバー（４Ａ）を開閉する前後方向に延在する開閉レバー（４Ｂ）に、前記刈取装置（３）から取外された引起装置（１７，７０）の第１フック（８７）を係止することができ、前記機体フレーム（１）の左側に設けられた前後方向に延在するナローガイド（１Ａ）に、前記刈取装置（３）から取外された引起装置（１７，７０）の第２フック（８８）を係止することができ、前記刈取フレーム（１０）の上部に配置された左右方向に延在する伝動筒（１５）の中間部に、該伝動筒（１５）の中間部から下側に向かって延在する少なくとも１個以上の上下伝動筒（４１）と、該上下伝動筒（４１）の下部から左右方向に延在する左右伝動筒（４２）を設け、前記分草体（１６）を支持する前後フレーム（２２）の中間部を連結する左右方向に延在するフレーム（２３）の中間部に、該フレーム（２３）の中間部から上側に向かって延在する少なくとも１個以上のステー（４３）と、該ステー（４３）の上部から左右方向に延在する左右フレーム（４４）を設け、前記引起装置（１７，７０）の左右方向の中間に配置された引起装置（１７，７０）の上部を左右伝動筒（４２）に、下部を左右フレーム（４４）に着脱自在に固定したことを特徴とするコンバインである。 The present invention which has solved the above problems is as follows.
That is, the invention described in claim 1 is a combine harvester in which a harvesting device (3) is provided in front of a machine frame (1) on which an engine is mounted, a threshing device (4) is provided on the rear left side of the harvesting device (3), and a control unit (5) is provided on the rear right side of the harvesting device (3),
A reaping frame (10) of the reaping device (3) is provided with a culm dividing body (16) for dividing the culms, a lifting device (17, 70) for raising the divided culms, a cutting blade device (18) for cutting the base of the raised culms, and a conveying device (19) for clamping the cut culms and conveying them to the threshing device (4). A first hook (87) is provided on the upper part of the rear surface of the lifting device (17, 70) and is offset to one side in the left-right direction at the vertical middle part of the rear surface of the lifting device (17, 70). A pair of second hooks (88) are provided at a predetermined interval in the vertical direction on the cutting device (3), the first hook (87) is disposed above the drive sprocket (50) to which the output rotation of the engine is transmitted, the second hook (88) is disposed on the side where the raising lug (35) provided with the chain engaged with the drive sprocket (50) is raised to raise the culm, and the raising and lowering guides (5A) of the grass division body (16) and the steering unit (5) disposed on both sides of the harvesting device (3) are provided. ) is formed with a fastener for engaging a first hook (87) of the lifting device (17, 70) removed from the reaping device (3), and the first hook (87) of the lifting device (17, 70) removed from the reaping device (3) can be engaged with an opening/closing lever (4B) extending in the front-rear direction for opening and closing the threshing cover (4A) of the threshing device (4), and a second hook (88) of the lifting device (17, 70) removed from the reaping device (3) can be engaged with a narrow guide (1A) extending in the front-rear direction provided on the left side of the machine frame (1) , and a fastener is provided on a lower portion of a transmission tube (15) extending in the left-right direction and disposed at the upper portion of the reaping frame (10) from the middle portion of the transmission tube (15). This combine harvester is characterized in that it has at least one or more upper and lower transmission tubes (41) extending toward the left and right, and left and right transmission tubes (42) extending left and right from the lower part of the upper and lower transmission tubes (41), and at least one or more stays (43) extending upward from the middle part of the frame (23) that connects the middle parts of the front and rear frames (22) that support the grass body (16) are provided in the middle part of the frame (23) extending left and right and right frames (44) extending left and right from the upper part of the stays (43), and the upper part of the lifting device (17, 70) located midway between the lifting devices (17, 70) in the left and right direction is fixed to the left and right transmission tubes (42) and the lower part is fixed to the left and right frames (44) in a manner that allows them to be freely attached and detached.

請求項２記載の発明は、前記留め具には、前記第１フック（８７）を検出するセンサが設けられ、該センサが前記第１フック（８７）を検出した場合には、前記エンジンの出力回転を刈取装置（３）に伝動しない構成とした請求項１記載のコンバインである。 The invention described in claim 2 is a combine described in claim 1, in which the fastener is provided with a sensor that detects the first hook (87), and when the sensor detects the first hook (87), the output rotation of the engine is not transmitted to the harvesting device (3).

請求項３記載の発明は、前記第１フック（８７）と第２フック（８８）の内周部には、弾性部材が請求項１記載のコンバインである。 The invention described in claim 3 is the combine described in claim 1, wherein elastic members are provided on the inner periphery of the first hook (87) and the second hook (88).

請求項４記載の発明は、前記引起装置（１７）の左側から２番目に位置する引起装置（１７Ｂ）の引起こし反対側の右部と、前記引起装置（１７）の左側から３番目に位置する引起装置（１７Ｃ）の引起こし反対側の左部を対向して配置し、前記引起装置（１７Ｂ）の上部を左右伝動筒（４２）の左部に左係合部品（４７Ｌ）で、下部を左右フレーム（４４）の左部に左挟持部品（４８Ｌ）で着脱自在に固定し、前記引起装置（１７Ｃ）の上部を左右伝動筒（４２）の右部に右係合部品（４７Ｒ）でに、下部を左右フレーム（４４）の右部に右挟持部品（４８Ｒ）で着脱自在に固定した請求項１記載のコンバインである。 The invention described in claim 4 is a combine harvester described in claim 1, in which the right side of the lifting device (17B) located second from the left side of the lifting devices (17) and the left side of the lifting device (17C) located third from the left side of the lifting devices (17) are arranged opposite each other, the upper part of the lifting device (17B) is detachably fixed to the left part of the left and right transmission cylinders (42) with a left engaging part (47L) and the lower part is detachably fixed to the left part of the left and right frames (44) with a left clamping part (48L), and the upper part of the lifting device (17C) is detachably fixed to the right part of the left and right transmission cylinders (42) with a right engaging part (47R) and the lower part is detachably fixed to the right part of the left and right frames (44) with a right clamping part (48R).

請求項５記載の発明は、前記引起装置（７０）の左側から２番目に位置する引起装置（７０Ｂ）の引起こし反対側の右部と、前記引起装置（７０）の左側から３番目に位置する引起装置（７０Ｃ）の引起こし反対側の左部を対向して配置し、前記引起装置（７０）の左側から４番目に位置する引起装置（７０Ｄ）の引起こし反対側の右部と、前記引起装置（７０）の左側から５番目に位置する引起装置（７０Ｅ）の引起こし反対側の左部を対向して配置し、前記引起装置（７０Ｂ）の上部を、左側の前記上下伝動筒（４１）の下部から延在する左右伝動筒（４２）の左部に左係合部品（４７Ｌ）で、下部を、左側の前記ステー（４３）の上部から延在する左右フレーム（４４）の左部に左挟持部品（４８Ｌ）で着脱自在に固定し、前記引起装置（７０Ｃ）の上部を、左側の前記上下伝動筒（４１）の下部から延在する左右伝動筒（４２）の右部に右係合部品（４７Ｒ）で、下部を、左側の前記ステー（４３）の上部から延在する左右フレーム（４４）の右部に右挟持部品（４８Ｒ）で着脱自在に固定し、前記引起装置（７０Ｄ）の上部を、右側の前記上下伝動筒（４１）の下部から延在する左右伝動筒（４２）の左部に左係合部品（４７Ｌ）で、下部を、右側の前記ステー（４３）の上部から延在する左右フレーム（４４）の左部に左挟持部品（４８Ｌ）で着脱自在に固定し、前記引起装置（７０Ｅ）の上部を、右側の前記上下伝動筒（４１）の下部から延在する左右伝動筒（４２）の右部に右係合部品（４７Ｒ）で、下部を、右側の前記ステー（４３）の上部から延在する左右フレーム（４４）の右部に右挟持部品（４８Ｒ）で着脱自在に固定した請求項１記載のコンバインである。 The invention described in claim 5 is a method for disposing a right side of the lifting device (70B) located second from the left side of the lifting device (70) opposite to the lifting device (70B) and a left side of the lifting device (70C) located third from the left side of the lifting device (70) facing each other, and disposing a right side of the lifting device (70D) located fourth from the left side of the lifting device (70) opposite to the lifting device (70C) and a left side of the lifting device (70D) located fifth from the left side of the lifting device (70) facing each other. The left part of the lifting device (70E) on the opposite side to the lifting side is disposed opposite to the left part of the lifting device (70E), and the upper part of the lifting device (70B) is detachably fixed to the left part of the left-right transmission cylinder (42) extending from the lower part of the left-side vertical transmission cylinder (41) with a left engaging part (47L), and the lower part is detachably fixed to the left part of the left-right frame (44) extending from the upper part of the left-side stay (43) with a left clamping part (48L). The upper part of the lifting device (70D) is detachably fixed to the left part of the left-right frame (44) extending from the lower part of the up-down transmission cylinder (41) on the right side with a left engaging part (47L), and the lower part is detachably fixed to the right part of the left-right frame (44) extending from the upper part of the left-side stay (43) with a right clamping part (48R). The upper part of the lifting device (70D) is detachably fixed to the left part of the left-right transmission cylinder (42) extending from the lower part of the up-down transmission cylinder (41) on the right side with a left engaging part (47L), and the lower part is detachably fixed to the upper part of the right-side stay (43). the upper part of the lifting device (70E) is detachably fixed to the right part of the left-right frame (44) extending from the lower part of the right-side up-down transmission cylinder (41) with a right engaging part (47R), and the lower part is detachably fixed to the right part of the left-right frame (44) extending from the upper part of the right-side stay (43) with a right clamping part (48R).

請求項６記載の発明は、前記左係合部品（４７Ｌ）を、前記左右伝動筒（４２）に設けられた係合部（６０）と、前記引起装置（１７Ｂ，７０Ｂ，７０Ｂ）の後面に立設された第１被係合部（６１）で形成し、前記右係合部品（４７Ｒ）を、前記左右伝動筒（４２）に設けられた係合部（６０）と、前記引起装置（１７Ｃ，７０Ｃ，７０Ｅ）の後面に立設された第１被係合部（６１）で形成し、前記第１被係合部（６１）に凹凸を形成した請求項４又は５記載のコンバインである。 The invention described in claim 6 is a combine harvester described in claim 4 or 5, in which the left engaging part (47L) is formed by an engaging part (60) provided on the left and right transmission cylinders (42) and a first engaged part (61) erected on the rear surface of the lifting device (17B, 70B, 70B), and the right engaging part (47R) is formed by an engaging part (60) provided on the left and right transmission cylinders (42) and a first engaged part (61) erected on the rear surface of the lifting device (17C, 70C, 70E), and unevenness is formed on the first engaged part (61).

請求項７記載の発明は、前記左挟持部品（４８Ｌ）を、前記引起装置（１７Ｂ，７０Ｂ，７０Ｄ）の下部に設けられた上挟持部（６５）と下挟持部（６６）で形成し、前記右挟持部品（４８Ｒ）を、前記引起装置（１７Ｃ，７０Ｃ，７０Ｅ）の下部に設けられた上挟持部（６５）と下挟持部（６６）で形成し、前記上挟持部（６５）に、左右方向に延在するピン（６５Ｂ）を設け、該ピン（６５Ｂ）に、前記上挟持部（６５）の円弧状の上挟持本体部（６５Ｃ）の前部を固定し、前記ピン（６５Ｂ）に、前記下挟持部（６６）の円弧状の下挟持本体部（６６Ａ）の前部を回転自在に固定し、該下挟持本体部（６６Ａ）の後部に第２被係合部（６６Ｂ）を設け、前記第２被係合部（６６Ｂ）の後部を後方下方に湾曲させた請求項４又は５記載のコンバインである。 In the invention described in claim 7 , the left clamping part (48L) is formed by an upper clamping part (65) and a lower clamping part (66) provided at the lower part of the lifting device (17B, 70B, 70D), the right clamping part (48R) is formed by an upper clamping part (65) and a lower clamping part (66) provided at the lower part of the lifting device (17C, 70C, 70E), and a pin (65B) extending in the left-right direction is provided on the upper clamping part (65), This is a combine harvester as described in claim 4 or 5, in which a front portion of the arc-shaped upper clamping body portion (65C) of the upper clamping portion (65) is fixed to the pin (65B), a front portion of the arc-shaped lower clamping body portion (66A) of the lower clamping portion (66) is rotatably fixed to the pin (65B), a second engaged portion (66B) is provided at the rear portion of the lower clamping body portion (66A), and the rear portion of the second engaged portion (66B) is curved downward and rearward.

請求項８記載の発明は、前記上挟持本体部（６５Ｃ）と下挟持本体部（６６Ａ）の内周面に弾性部材を積層した請求項７記載のコンバインである。 The invention described in claim 8 is the combine described in claim 7 , in which an elastic material is laminated on the inner circumferential surfaces of the upper clamping body portion (65C) and the lower clamping body portion (66A).

請求項９記載の発明は、前記左右伝動筒（４２）と左右フレーム（４４）の左部を、上下方向に延在する左上下フレーム（４５Ｌ）で連結し、前記左右伝動筒（４２）と左右フレーム（４４）の右部を、上下方向に延在する右上下フレーム（４５Ｒ）で連結した請求項１記載のコンバインである。 The invention described in claim 9 is a combine described in claim 1, in which the left and right transmission barrels (42) and the left portions of the left and right frames (44) are connected by a left upper and lower frame (45L) extending in the vertical direction, and the right portions of the left and right transmission barrels (42) and the left and right frames (44) are connected by a right upper and lower frame (45R) extending in the vertical direction.

請求項１０記載の発明は、側面視において、前記左上下フレーム（４５Ｌ）と右上下フレーム（４５Ｒ）を引起装置（１７，７０）の後面と平行に配置した請求項９記載のコンバインである。 The invention described in claim 10 is a combine according to claim 9 , in which the left upper and lower frames (45L) and the right upper and lower frames (45R) are arranged parallel to the rear surface of the lifting device (17, 70) when viewed from the side.

請求項１記載の発明によれば、刈取装置（３）の刈取フレーム（１０）に、穀稈を分草する分草体（１６）と、分草された穀稈を引起こす引起装置（１７，７０）と、引起こされた穀稈の株元を切断する刈刃装置（１８）と、切断された穀稈を挟持して脱穀装置（４）に搬送する搬送装置（１９）を設け、引起装置（１７，７０）の背面の上部に第１フック（８７）を設け、引起装置（１７，７０）の背面の上下方向の中間部の左右方向に一側に偏移した部位に上下方向に所定の間隔を隔てて一対の第２フック（８８）を設け、第１フック（８７）は、エンジンの出力回転が伝動される駆動スプロケット（５０）よりも上側に配置され、第２フック（８８）は、駆動スプロケット（５０）に係回されたチェンの設けられた引起ラグ（３５）を起立させて穀稈を引起こす側に配置され、刈取装置（３）の両側部に配置された分草体（１６）と操縦部（５）の昇降ガイド（５Ａ）には、刈取装置（３）から取外された引起装置（１７，７０）の第１フック（８７）を係止する留め具が形成され、脱穀装置（４）の脱穀カバー（４Ａ）を開閉する前後方向に延在する開閉レバー（４Ｂ）に、刈取装置（３）から取外された引起装置（１７，７０）の第１フック（８７）を係止することができ、機体フレーム（１）の左側に設けられた前後方向に延在するナローガイド（１Ａ）に、刈取装置（３）から取外された引起装置（１７，７０）の第２フック（８８）を係止することができ、刈取フレーム（１０）の上部に配置された左右方向に延在する伝動筒（１５）の中間部に、伝動筒（１５）の中間部から下側に向かって延在する少なくとも１個以上の上下伝動筒（４１）と、上下伝動筒（４１）の下部から左右方向に延在する左右伝動筒（４２）を設け、分草体（１６）を支持する前後フレーム（２２）の中間部を連結する左右方向に延在するフレーム（２３）の中間部に、フレーム（２３）の中間部から上側に向かって延在する少なくとも１個以上のステー（４３）と、ステー（４３）の上部から左右方向に延在する左右フレーム（４４）を設け、引起装置（１７，７０）の左右方向の中間に配置された引起装置（１７，７０）の上部を左右伝動筒（４２）に、下部を左右フレーム（４４）に着脱自在に固定したので、刈取装置（３）から取外した引起装置（１７，７０）を第１フック（８７）や第２フック（８８）を介して機体に係止して、搬送装置（１９）の前方に広い作業空間を確保し、作業者が誤って頭部を引起装置（１７，７０）にぶつけるのを防止することができる。また、引起装置（１７，７０）の摺動部に圃場の土が付着して作動不良になるのを抑制することもできる。
さらに、引起装置（１７，７０）の長手方向を上前後方向にして第２フック（８８）を介して機体、例えば機体フレーム（１）に装着されたナローガイドに容易に係止することができ、引起装置（１７，７０）を左右伝動筒（４２）と左右フレーム（４４）から取外して搬送装置（１９）の前側により大きな作業空間を確保して、搬送装置（１９）に詰まった穀稈を容易に取除くことができる。 According to the invention of claim 1, a reaping frame (10) of the reaping device (3) is provided with a grass dividing body (16) for dividing the culms, a lifting device (17, 70) for lifting the divided culms, a cutting blade device (18) for cutting the base of the lifted culms, and a conveying device (19) for clamping the cut culms and conveying them to the threshing device (4). A first hook (87) is provided on the upper part of the back surface of the lifting device (17, 70), and a second hook (88) is provided on the upper part of the back surface of the lifting device (17, 70) in the left-right direction of the vertical middle part of the back surface of the lifting device (17, 70). A pair of second hooks (88) are provided at a position offset to one side of the first hook (87) at a predetermined interval in the vertical direction, the first hook (87) is disposed above the drive sprocket (50) to which the output rotation of the engine is transmitted, the second hook (88) is disposed on the side where the raising lug (35) provided with the chain engaged with the drive sprocket (50) is raised to raise the stalks, and the raising and lowering guides (5A) of the control unit (5) and the grass body (16) disposed on both sides of the harvesting device (3) are connected to each other . ) is formed with a fastener for engaging a first hook (87) of the lifting device (17, 70) removed from the reaping device (3), and the first hook (87) of the lifting device (17, 70) removed from the reaping device (3) can be engaged with an opening/closing lever (4B) extending in the front-rear direction for opening and closing the threshing cover (4A) of the threshing device (4), and a second hook (88) of the lifting device (17, 70 ) removed from the reaping device (3) can be engaged with a narrow guide (1A) extending in the front-rear direction provided on the left side of the machine frame (1). At least one upper and lower transmission tubes (41) extending downward from the middle part of the transmission tube (15) and left and right transmission tubes (41) extending in the left and right direction from the lower part of the upper and lower transmission tubes (41) are provided in the middle part of the transmission tube (15) extending in the left and right direction and are provided in the left and right direction. A movable cylinder (42) is provided, and at least one stay (43) extending upward from the middle part of the frame (23) and left and right frames (44) extending left and right from the upper part of the stay (43) are provided in the middle part of the frame (23) extending left and right connecting the middle parts of the front and rear frames (22) supporting the grass body (16). The upper part of the lifting device (17, 70) arranged in the middle of the lifting device in the left and right direction is fixed to the left and right transmission cylinders (42) and the lower part is fixed to the left and right frames (44) in a detachable manner. Therefore, the lifting device (17, 70) removed from the harvesting device (3) can be engaged with the machine body via the first hook (87) and the second hook (88), thereby securing a wide working space in front of the transporting device (19) and preventing the operator from accidentally hitting his head against the lifting device (17, 70). In addition, it is possible to prevent soil from the field from adhering to the sliding parts of the lifting device (17, 70) and causing malfunction.
Furthermore, the longitudinal direction of the lifting device (17, 70) can be oriented in the upward front-to-rear direction and easily engaged with a narrow guide attached to the machine body, for example, the machine body frame (1), via the second hook (88). The lifting device (17, 70) can be removed from the left and right transmission tubes (42) and the left and right frames (44) to ensure a larger working space in front of the conveying device (19), making it easy to remove the straw stuck in the conveying device (19).

引起装置（１７，７０）の長手方向を上下方向にして第１フック（８７）を介して機体、例えば刈取装置（３）や脱穀装置（４）、操縦部（５）に容易に係止することができる。 The lifting device (17, 70) can be easily hooked to the machine body, for example, the reaping device (3), the threshing device (4), or the control section (5) via the first hook (87) with its longitudinal direction in the up-down direction.

引起装置（１７，７０）の長手方向を上前後方向にして第２フック（８８）を介して機体、例えば機体フレーム（１）に装着されたナローガイドに容易に係止することができる。 The longitudinal direction of the lifting device (17, 70) is aligned in the upper front-rear direction, and the lifting device (17, 70) can be easily hooked to the machine body, for example, a narrow guide attached to the machine body frame (1) via the second hook (88).

請求項２記載の発明によれば、請求項１記載の発明による効果に加えて、留め具には、第１フック（８７）を検出するセンサが設けられ、センサが第１フック（８７）を検出した場合には、エンジンの出力回転を刈取装置（３）に伝動しない構成としたので、作業者が搬送装置（１９）に詰まった穀稈の安全に取除くことができる。 According to the invention described in claim 2 , in addition to the effects of the invention described in claim 1, the fastener is provided with a sensor that detects the first hook (87), and when the sensor detects the first hook (87), the output rotation of the engine is not transmitted to the harvesting device (3), so that the operator can safely remove the straw that is stuck in the conveying device (19).

請求項３記載の発明によれば、請求項１記載の発明による効果に加えて、第１フック（８７）と第２フック（８８）の内周部には、弾性部材が積層されているので、引起装置（１７，７０）を第１フック（８７）や第２フック（８８）を介して機体に確実に係止することができ、走行時の騒音も抑制することができる。 According to the invention described in claim 3 , in addition to the effects of the invention described in claim 1, an elastic material is laminated on the inner periphery of the first hook (87) and the second hook (88), so that the lifting device (17, 70) can be securely engaged with the aircraft body via the first hook (87) or the second hook (88), and noise during travel can also be suppressed.

請求項４記載の発明によれば、請求項１記載の発明による効果に加えて、引起装置（１７）の左側から２番目に位置する引起装置（１７Ｂ）の引起こし反対側の右部と、引起装置（１７）の左側から３番目に位置する引起装置（１７Ｃ）の引起こし反対側の左部を対向して配置し、引起装置（１７Ｂ）の上部を左右伝動筒（４２）の左部に左係合部品（４７Ｌ）で、下部を左右フレーム（４４）の左部に左挟持部品（４８Ｌ）で着脱自在に固定し、引起装置（１７Ｃ）の上部を左右伝動筒（４２）の右部に右係合部品（４７Ｒ）でに、下部を左右フレーム（４４）の右部に右挟持部品（４８Ｒ）で着脱自在に固定したので、左係合部品（４７Ｌ）の係合を解除し、左挟持部品（４８Ｌ）の挟持を開放して引起装置（１７Ｂ）を、右係合部品（４７Ｒ）の係合を解除し、右挟持部品（４８Ｒ）の挟持を開放して引起装置（１７Ｃ）をより容易に取外すことができる。 According to the invention of claim 4 , in addition to the effects of the invention of claim 1, the right side of the lifting device (17B) located second from the left side of the lifting devices (17) and the left side of the lifting device (17C) located third from the left side of the lifting devices (17) are arranged opposite to each other, and the upper part of the lifting device (17B) is attached to the left part of the left-right transmission cylinder (42) by the left engaging part (47L), and the lower part is attached to the left part of the left-right frame (44) by the left clamping part (48L). Since the lifting device (17C) is fixed so as to be freely detachable, and the upper part of the lifting device (17C) is fixed to the right part of the left-right transmission cylinder (42) by the right engaging part (47R), and the lower part is fixed to the right part of the left-right frame (44) by the right clamping part (48R), the lifting device (17B) can be more easily removed by releasing the engagement of the left engaging part (47L) and releasing the clamping of the left clamping part (48L), and the lifting device (17C) can be more easily removed by releasing the engagement of the right engaging part (47R) and releasing the clamping of the right clamping part (48R).

請求項５記載の発明によれば、請求項１記載の発明による効果に加えて、引起装置（７０）の左側から２番目に位置する引起装置（７０Ｂ）の引起こし反対側の右部と、引起装置（７０）の左側から３番目に位置する引起装置（７０Ｃ）の引起こし反対側の左部を対向して配置し、引起装置（７０）の左側から４番目に位置する引起装置（７０Ｄ）の引起こし反対側の右部と、引起装置（７０）の左側から５番目に位置する引起装置（７０Ｅ）の引起こし反対側の左部を対向して配置し、引起装置（７０Ｂ）の上部を、左側の上下伝動筒（４１）の下部から延在する左右伝動筒（４２）の左部に左係合部品（４７Ｌ）で、下部を、左側のステー（４３）の上部から延在する左右フレーム（４４）の左部に左挟持部品（４８Ｌ）で着脱自在に固定し、引起装置（７０Ｃ）の上部を、左側の上下伝動筒（４１）の下部から延在する左右伝動筒（４２）の右部に右係合部品（４７Ｒ）で、下部を、左側のステー（４３）の上部から延在する左右フレーム（４４）の右部に右挟持部品（４８Ｒ）で着脱自在に固定し、引起装置（７０Ｄ）の上部を、右側の上下伝動筒（４１）の下部から延在する左右伝動筒（４２）の左部に左係合部品（４７Ｌ）で、下部を、右側のステー（４３）の上部から延在する左右フレーム（４４）の左部に左挟持部品（４８Ｌ）で着脱自在に固定し、引起装置（７０Ｅ）の上部を、右側の上下伝動筒（４１）の下部から延在する左右伝動筒（４２）の右部に右係合部品（４７Ｒ）で、下部を、右側のステー（４３）の上部から延在する左右フレーム（４４）の右部に右挟持部品（４８Ｒ）で着脱自在に固定したので、左係合部品（４７Ｌ）の係合を解除し、左挟持部品（４８Ｌ）の挟持を開放して引起装置（７０Ｂ，７０Ｄ）を、右係合部品（４７Ｒ）の係合を解除し、右挟持部品（４８Ｒ）の挟持を開放して引起装置（７０Ｃ，７０Ｅ）をより容易に取外すことができる。 According to the invention of claim 5 , in addition to the effects of the invention of claim 1, the right side of the opposite side to the lifting of the lifting device (70B) located second from the left side of the lifting devices (70) and the left side of the opposite side to the lifting of the lifting device (70C) located third from the left side of the lifting devices (70) are arranged to face each other, and the right side of the opposite side to the lifting of the lifting device (70D) located fourth from the left side of the lifting devices (70) and the lifting of the lifting device (70E) located fifth from the left side of the lifting devices (70) are arranged to face each other. The left parts of the opposite sides to be raised are arranged opposite to each other, and the upper part of the lifting device (70B) is detachably fixed to the left part of the left-right transmission cylinder (42) extending from the lower part of the left-side vertical transmission cylinder (41) with a left engaging part (47L), and the lower part is detachably fixed to the left part of the left-side frame (44) extending from the upper part of the left-side stay (43) with a left clamping part (48L). The upper part of the lifting device (70C) is detachably fixed to the right part of the left-side transmission cylinder (42) extending from the lower part of the left-side vertical transmission cylinder (41) with a right engaging part (47R), and the lower part is detachably fixed to the left-side The lifting device (70D) is detachably fixed to the right part of the left-right frame (44) extending from the upper part of the stay (43) by a right clamping part (48R), the upper part of the lifting device (70D) is detachably fixed to the left part of the left-right transmission cylinder (42) extending from the lower part of the right-side vertical transmission cylinder (41) by a left engagement part (47L), and the lower part is detachably fixed to the left part of the left-right frame (44) extending from the upper part of the right-side stay (43) by a left clamping part (48L), and the upper part of the lifting device (70E) is detachably fixed to the left part of the right-side vertical transmission cylinder (41) extending from the lower part of the right-side vertical transmission cylinder (41). The right portion of the left and right transmission cylinder (42) is detachably fixed by the right engaging part (47R) at its right portion and by the right clamping part (48R) at its lower portion to the right portion of the left and right frame (44) extending from the upper portion of the right stay (43). Therefore, the lifting devices (70B, 70D) can be more easily removed by releasing the engagement of the left engaging part (47L) and releasing the clamping of the left clamping part (48L), and the lifting devices (70C, 70E) can be more easily removed by releasing the engagement of the right engaging part (47R) and releasing the clamping of the right clamping part (48R).

請求項６記載の発明によれば、請求項４又は５記載の発明による効果に加えて、左係合部品（４７Ｌ）を、左右伝動筒（４２）に設けられた係合部（６０）と、引起装置（１７Ｂ，７０Ｂ，７０Ｂ）の後面に立設された第１被係合部（６１）で形成し、右係合部品（４７Ｒ）を、左右伝動筒（４２）に設けられた係合部（６０）と、引起装置（１７Ｃ，７０Ｃ，７０Ｅ）の後面に立設された第１被係合部（６１）で形成し、第１被係合部（６１）に凹凸を形成したので、係合部（６０）を第１被係合部（６１）に強固に係合させて、引起装置（１７，７０）を左右伝動筒（４２）に密着して固定することができる。 According to the invention of claim 6 , in addition to the effects of the invention of claim 4 or 5 , the left engaging part (47L) is formed of an engaging part (60) provided on the left and right transmission cylinders (42) and a first engaged part (61) erected on the rear surface of the raising device (17B, 70B, 70B), and the right engaging part (47R) is formed of an engaging part (60) provided on the left and right transmission cylinders (42) and a first engaged part (61) erected on the rear surface of the raising device (17C, 70C, 70E), and unevenness is formed on the first engaged part (61). Therefore, the engaging part (60) can be firmly engaged with the first engaged part (61) to fix the raising device (17, 70) in close contact with the left and right transmission cylinders (42).

請求項７記載の発明によれば、請求項４又は５記載の発明による効果に加えて、左挟持部品（４８Ｌ）を、引起装置（１７Ｂ，７０Ｂ，７０Ｄ）の下部に設けられた上挟持部（６５）と下挟持部（６６）で形成し、右挟持部品（４８Ｒ）を、引起装置（１７Ｃ，７０Ｃ，７０Ｅ）の下部に設けられた上挟持部（６５）と下挟持部（６６）で形成し、上挟持部（６５）に、左右方向に延在するピン（６５Ｂ）を設け、ピン（６５Ｂ）に、上挟持部（６５）の円弧状の上挟持本体部（６５Ｃ）の前部を固定し、ピン（６５Ｂ）に、下挟持部（６６）の円弧状の下挟持本体部（６６Ａ）の前部を回転自在に固定し、下挟持本体部（６６Ａ）の後部に第２被係合部（６６Ｂ）を設け、第２被係合部（６６Ｂ）の後部を後方下方に湾曲させたので、上挟持本体部（６５Ｃ）と下挟持本体部（６６Ａ）で左右フレーム（４４）を密着して挟持して引起装置（１７，７０）の下部を左右フレーム（４４）に強固に固定することができる。 According to the invention of claim 7 , in addition to the effects of the invention of claim 4 or 5 , the left clamping part (48L) is formed of an upper clamping part (65) and a lower clamping part (66) provided at the lower part of the raising device (17B, 70B, 70D), the right clamping part (48R) is formed of an upper clamping part (65) and a lower clamping part (66) provided at the lower part of the raising device (17C, 70C, 70E), a pin (65B) extending in the left-right direction is provided at the upper clamping part (65), and the pin (65B) is provided with a circular arc-shaped portion of the upper clamping part (65). The front portion of the upper clamping body portion (65C) is fixed, the front portion of the arc-shaped lower clamping body portion (66A) of the lower clamping portion (66) is rotatably fixed to the pin (65B), a second engaged portion (66B) is provided at the rear portion of the lower clamping body portion (66A), and the rear portion of the second engaged portion (66B) is curved downward and rearward, so that the left and right frames (44) are tightly clamped by the upper clamping body portion (65C) and the lower clamping body portion (66A), and the lower portion of the lifting device (17, 70) can be firmly fixed to the left and right frames (44).

請求項８記載の発明によれば、請求項７記載の発明による効果に加えて、上挟持本体部（６５Ｃ）と下挟持本体部（６６Ａ）の内周面に弾性部材を積層したので、上挟持本体部（６５Ｃ）と下挟持本体部（６６Ａ）で左右フレーム（４４）をより密着して挟持することができる。 According to the invention described in claim 8 , in addition to the effects of the invention described in claim 7 , an elastic material is laminated on the inner surfaces of the upper clamping body portion (65C) and the lower clamping body portion (66A), so that the left and right frames (44) can be clamped more closely by the upper clamping body portion (65C) and the lower clamping body portion (66A).

請求項９記載の発明によれば、請求項１記載の発明による効果に加えて、左右伝動筒（４２）と左右フレーム（４４）の左部を、上下方向に延在する左上下フレーム（４５Ｌ）で連結し、左右伝動筒（４２）と左右フレーム（４４）の右部を、上下方向に延在する右上下フレーム（４５Ｒ）で連結したので、左右伝動筒（４２）と左右フレーム（４４）の剛性が高まり、引起装置（１７，７０）を左右伝動筒（４２）と左右フレーム（４４）から取外した場合に左右伝動筒（４２）と左右フレーム（４４）に生じる変形を抑制することができる。 According to the invention described in claim 9 , in addition to the effects of the invention described in claim 1, the left and right transmission tubes (42) and the left and right frames (44) are connected at their left portions by the left upper and lower frame (45L) extending in the vertical direction, and the right portions of the left and right transmission tubes (42) and the left and right frames (44) are connected by the right upper and lower frame (45R) extending in the vertical direction. This increases the rigidity of the left and right transmission tubes (42) and the left and right frames (44), and makes it possible to suppress deformation of the left and right transmission tubes (42) and the left and right frames (44) when the lifting device (17, 70) is removed from the left and right transmission tubes (42) and the left and right frames (44).

請求項１０記載の発明によれば、請求項９記載の発明による効果に加えて、側面視において、左上下フレーム（４５Ｌ）と右上下フレーム（４５Ｒ）を引起装置（１７，７０）の後面と平行に配置したので、左右伝動筒（４２）と左右フレーム（４４）の剛性をより高めることができる。 According to the invention described in claim 10 , in addition to the effects of the invention described in claim 9 , when viewed from the side, the left upper and lower frames (45L) and the right upper and lower frames (45R) are arranged parallel to the rear surfaces of the lifting devices (17, 70), thereby further increasing the rigidity of the left and right transmission cylinders (42) and the left and right frames (44).

コンバインの正面図である。FIG. コンバインの左側面図である。FIG. 刈取装置の左側面図である。FIG. 刈取装置の右側面図である。FIG. 引起装置の正面図である。FIG. 引起フレームの正面図である。FIG. 引起フレームの背面図である。FIG. 図７の要部を拡大した背面図である。FIG. 8 is an enlarged rear view of the main part of FIG. 7 . 引起装置を左右伝動筒に固定した左側面図である。FIG. 13 is a left side view showing the lifting device fixed to the left and right transmission cylinders. 分草フレームの上部を前側に移動した左側面図である。This is a left side view of the grass division frame with the top part moved forward. 引起装置の上部を前側に移動した左側面図である。FIG. 13 is a left side view showing the upper part of the lifting device moved forward. 引起装置の下部を取外した左側面図である。FIG. 4 is a left side view showing the lower part of the lifting device removed. 係合部と被係合部を係合した係合部品の左側面図である。13 is a left side view of an engaging part in which an engaging portion and an engaged portion are engaged with each other. FIG. 係合部と被係合部の係合を解除した係合部品の左側面図である。13 is a left side view of the engaging part with the engaging portion and the engaged portion disengaged from each other. FIG. 左右フレームを挟持した係合部品の左側面図である。13 is a left side view of the engaging parts that sandwich the left and right frames. FIG. 左右フレームの挟持を解除した係合部品の左側面図である。13 is a left side view of the engaging part when the clamping between the left and right frames is released. FIG. 他のコンバインの正面図である。FIG. 13 is a front view of another combine harvester. 左サイドミラーフレームに車幅灯を固定した正面図である。FIG. 1 is a front view of a side light fixed to a left side mirror frame. 引起装置の左側面図である。FIG. 引起装置の背面図である。FIG. 引起装置を刈取装置に係止した左側面図である。FIG. 13 is a left side view showing the lifting device engaged with the reaping device. 引起装置を刈取装置に係止した正面図である。FIG. 13 is a front view showing the lifting device engaged with the reaping device. 引起装置を操縦部に係止した右側面図である。FIG. 13 is a right side view showing the lifting device engaged with the operating section. 引起装置を脱穀装置に係止した左側面図である。This is a left side view showing the lifting device engaged with the threshing device. 引起装置をナノ―ガイドに係止した左側面図である。FIG. 13 is a left side view showing the lifting device engaged with the nano-guide.

図１，２に示すように、コンバインは、機体フレーム１の下側に土壌面を走行する左右一対のクローラからなる走行装置２が設けられ、機体フレーム１の前側に圃場の穀稈を刈取る刈取装置３が設けられ、刈取装置３の後方左側に刈取られた穀稈を脱穀・選別処理する脱穀装置４が設けられ、刈取装置３の後方右側に作業者が搭乗する操縦部５が設けられている。 As shown in Figures 1 and 2, the combine harvester has a traveling device 2 consisting of a pair of left and right crawlers that travel on the soil surface on the underside of the machine frame 1, a harvesting device 3 that harvests the stalks in the field is provided on the front side of the machine frame 1, a threshing device 4 that threshes and sorts the harvested stalks is provided on the rear left side of the harvesting device 3, and a control unit 5 on which the operator rides is provided on the rear right side of the harvesting device 3.

操縦部５の下側には、エンジンを搭載するエンジンルーム６が設けられ、操縦部５の後側には、脱穀・選別処理された穀粒を貯留するグレンタンク７が設けられ、グレンタンク７の後側には、穀粒を外部に排出する上下方向に延在する揚穀部と前後方向に延在する横排出からなる排出オーガ８が設けられている。 Below the control unit 5 is an engine room 6 that houses the engine, and behind the control unit 5 is a grain tank 7 that stores the threshed and sorted grains, and behind the grain tank 7 is a discharge auger 8 that consists of a vertically extending grain lifting section that discharges the grains to the outside and a horizontal discharge section that extends back and forth.

刈取装置３の刈取フレーム１０は、エンジンの出力回転が伝動される左右方向に延在する伝動筒１１と、伝動筒１１の右部から前側に向かって延在する伝動筒１２と、伝動筒１２の下部から左右方向に延在する伝動筒１３と、伝動筒１３の左部から上側に向かって延在する伝動筒１４と、伝動筒１４の上部から左右方向に延在する伝動筒１５から形成されている。 The harvesting frame 10 of the harvesting device 3 is formed from a transmission tube 11 extending in the left-right direction to transmit the output rotation of the engine, a transmission tube 12 extending forward from the right part of the transmission tube 11, a transmission tube 13 extending in the left-right direction from the lower part of the transmission tube 12, a transmission tube 14 extending upward from the left part of the transmission tube 13, and a transmission tube 15 extending in the left-right direction from the upper part of the transmission tube 14.

刈取フレーム１０には、圃場に植立する穀稈を分草する分草体１６と、分草された穀稈を引起こす引起装置１７と、引起こされた穀稈の株元を切断する刈刃装置１８と、刈取られた穀稈を挟持して脱穀装置４に搬送する搬送装置１９が装着されている。 The harvesting frame 10 is equipped with a harvesting body 16 that harvests the culms planted in the field, a lifting device 17 that raises the harvested culms, a cutting blade device 18 that cuts the base of the raised culms, and a transport device 19 that clamps the harvested culms and transports them to the threshing device 4.

図３，４に示すように、伝動筒１１の右部と伝動筒１５の中間部は、丸鋼からなる連結部材２０で連結され、伝動筒１５の右部と伝動筒１３の右部は、丸鋼からなる連結部材２１で連結されている。これにより、伝動筒１５の左部を伝動筒１４で支持し、伝動筒１５の中間部を連結部材２０で支持し、伝動筒１５の右部を連結部材２１で支持するので、伝動筒１５の撓みや捻じり等の変形を抑制することができる。 As shown in Figures 3 and 4, the right part of the transmission tube 11 and the middle part of the transmission tube 15 are connected by a connecting member 20 made of round steel, and the right part of the transmission tube 15 and the right part of the transmission tube 13 are connected by a connecting member 21 made of round steel. As a result, the left part of the transmission tube 15 is supported by the transmission tube 14, the middle part of the transmission tube 15 is supported by the connecting member 20, and the right part of the transmission tube 15 is supported by the connecting member 21, so deformation of the transmission tube 15, such as bending or twisting, can be suppressed.

連結部材２０は、搬送装置１９の上側を超えるように、伝動筒１１の右部から前方上側に向かって延在した後に、前側に向かって延在し、その後、前方下側に向かって延在して伝動筒１５に至っている。また、連結部材２１は、搬送装置１９の上側を超えるように、伝動筒１３の右部から前方上側に向かって延在した後に、上側に向かって延在し、その後、前方上側に向かって延在して伝動筒１５に至っている。 The connecting member 20 extends from the right side of the transmission tube 11 toward the upper front side so as to pass over the upper side of the conveying device 19, then extends toward the front side, and then extends toward the lower front side to reach the transmission tube 15. The connecting member 21 extends from the right side of the transmission tube 13 toward the upper front side so as to pass over the upper side of the conveying device 19, then extends toward the upper side, and then extends toward the upper front side to reach the transmission tube 15.

図５に示すように、分草体１６は、５個の分草体１６Ａ～１６Ｅから形成されている。
分草体１６Ａ～１６Ｅは、伝動筒１３から前側に向かって延在し、左右方向に所定の間隔を隔てて設けられた前後フレーム２２の前部に固定されている。また、最も左側に設けられた前後フレーム２２と最も右側に設けられた前後フレーム２２の中間部を連結する丸パイプで形成されたフレーム２３で連結されている。 As shown in FIG. 5, the plant segment 16 is formed from five plant segments 16A to 16E.
The grass segments 16A to 16E extend forward from the transmission tube 13 and are fixed to the front of the front-rear frames 22 that are spaced apart from each other in the left-right direction. The grass segments 16A to 16E are connected to each other by a frame 23 made of a round pipe that connects the middle parts of the front-rear frames 22 on the leftmost side and the front-rear frames 22 on the rightmost side.

引起装置１７は、４個の引起装置１７Ａ～１７Ｄから形成されている。引起装置１７Ｂの引起こし反対側の右部と引起装置１７Ｃの引起こし反対側の左部を対向して配置している。これにより、引起装置１７Ａ，１７Ｂの間で２条、引起装置１７Ｃ，１７Ｄの間で２条の計４条の穀稈を同時に引起こすことができる。 The lifting device 17 is made up of four lifting devices 17A to 17D. The right side of lifting device 17B and the left side of lifting device 17C are arranged opposite each other. This allows a total of four rows of stumps to be lifted simultaneously: two rows between lifting devices 17A and 17B, and two rows between lifting devices 17C and 17D.

図６～８に示すように、引起装置１７Ａの上部に設けられた駆動スプロケットを支持する支軸（図示省略）は、伝動筒１５の左部から下側に向かって延在する上下伝動筒３０Ｌの回転軸３１Ｌに連結され、引起装置１７Ａの下部は、フレーム２３の左部から上方右側に湾曲するステー３２Ｌに設けられた矩形状の連結部材３３Ｌに固定されている。これにより、伝動筒１５に内装された回転軸に伝動されたエンジンの出力回転は、上下伝動筒３０Ｌに内装された回転軸を介して引起装置１７Ａの駆動スプロケットに伝動されて引起チェンを回動することができる。また、伝動筒１５の前側にはカバー２５が設けられている。 As shown in Figures 6 to 8, a support shaft (not shown) supporting a drive sprocket provided at the top of the lifting device 17A is connected to a rotating shaft 31L of the upper and lower transmission cylinders 30L that extends downward from the left side of the transmission cylinder 15, and the lower part of the lifting device 17A is fixed to a rectangular connecting member 33L provided on a stay 32L that curves upward and to the right from the left side of the frame 23. As a result, the output rotation of the engine transmitted to the rotating shaft installed inside the transmission cylinder 15 is transmitted to the driving sprocket of the lifting device 17A via the rotating shaft installed inside the upper and lower transmission cylinders 30L, and the lifting chain can be rotated. In addition, a cover 25 is provided on the front side of the transmission cylinder 15.

引起装置１７Ｄの上部に設けられた駆動スプロケットを支持する支軸（図示省略）は、伝動筒１５の右部から下側に向かって延在する上下伝動筒３０Ｒの回転軸３１Ｒに連結され、引起装置１７Ｄの下部は、フレーム２３の右部から上方左側に湾曲するステー３２Ｒに設けられた矩形状の連結部材３３Ｒに固定されている。これにより、伝動筒１５に内装された回転軸に伝動されたエンジンの出力回転は、上下伝動筒３０Ｒに内装された回転軸を介して引起装置１７Ｄの駆動スプロケットに伝動されて引起チェンを回動することができる。 The shaft (not shown) supporting the drive sprocket provided at the top of the lifting device 17D is connected to the rotating shaft 31R of the upper and lower transmission tubes 30R that extends downward from the right side of the transmission tube 15, and the lower part of the lifting device 17D is fixed to a rectangular connecting member 33R provided on a stay 32R that curves upward and to the left from the right side of the frame 23. As a result, the output rotation of the engine transmitted to the rotating shaft installed inside the transmission tube 15 is transmitted to the driving sprocket of the lifting device 17D via the rotating shaft installed inside the upper and lower transmission tubes 30R, and the lifting chain can be rotated.

伝動筒１５の左右方向の中間部には、中間部から下側に向かって延在する上下伝動筒４１が設けられ、上下伝動筒４１の下部には、左右方向に延在する左右伝動筒４２が設けられている。また、フレーム２３の中間部には、中間部から上側に向かって延在するステー４３が設けられ、ステー４３の上部には丸パイプから形成された左右方向に延在する左右フレーム４４が設けられている。 In the middle of the transmission tube 15 in the left-right direction, an upper and lower transmission tube 41 is provided, which extends downward from the middle part, and a left-right transmission tube 42 is provided below the upper part of the upper and lower transmission tube 41, which extends in the left-right direction. In addition, in the middle part of the frame 23, a stay 43 is provided, which extends upward from the middle part, and a left-right frame 44 made of a round pipe is provided above the stay 43, which extends in the left-right direction.

左右フレーム４４の両側部にはワッシャ等からなる規制部材４４Ｌ，４４Ｒが設けられている。これにより、後述する左挟持部品４８Ｌと右挟持部品４８Ｒが左右フレーム４４から左右方向に外れるのを防止することができる。 Restricting members 44L, 44R made of washers or the like are provided on both sides of the left and right frames 44. This prevents the left clamping part 48L and the right clamping part 48R, which will be described later, from coming off the left and right frames 44 in the left-right direction.

左右伝動筒４２と左右フレーム４４の左部は、左上下フレーム４５Ｌで連結され、左右伝動筒４２と左右フレーム４４の右部は、右上下フレーム４５Ｒで連結されている。これにより、左右伝動筒４２と左右フレーム４４の剛性を高めることができ、引起装置１７Ｂ，１７Ｃを取外した場合においても左右伝動筒４２と左右フレーム４４の変形を抑制することができる。なお、背面視において、上下伝動筒４１、左右伝動筒４２、ステー４３、左右フレーム４４、左上下フレーム４５Ｌ、及び右上下フレーム４５Ｒは、引起装置１７Ｂ，１７Ｃの外周部よりも内側に配置されている。 The left parts of the left and right transmission tubes 42 and the left and right frames 44 are connected by the left upper and lower frames 45L, and the right parts of the left and right transmission tubes 42 and the left and right frames 44 are connected by the right upper and lower frames 45R. This increases the rigidity of the left and right transmission tubes 42 and the left and right frames 44, and prevents deformation of the left and right transmission tubes 42 and the left and right frames 44 even when the lifting devices 17B and 17C are removed. In addition, when viewed from behind, the upper and lower transmission tubes 41, the left and right transmission tubes 42, the stays 43, the left and right frames 44, the left upper and lower frames 45L, and the right upper and lower frames 45R are positioned inside the outer periphery of the lifting devices 17B and 17C.

引起装置１７Ｂの上部に設けられた駆動スプロケット５０を支持する回転軸５１は、左右伝動筒４２の回転軸４６Ｌに連結され、引起装置１７Ｂの上部における回転軸４６Ｌに対向する部位に近接する部位は、スナップ錠等の左係合部品４７Ｌを介して左右伝動筒４２の左部に固定され、引起装置１７Ｂの下部は、スナップ錠等の左挟持部品４８Ｌを介して左右フレーム４４の左部に固定されている。これにより、伝動筒１５に内装された回転軸に伝動されたエンジンの出力回転は、上下伝動筒４１と左右伝動筒４２に内装された回転軸を介して引起装置１７Ｂの駆動スプロケット５０に伝動されて引起チェンを回動することができる。 The rotating shaft 51 supporting the drive sprocket 50 provided at the top of the lifting device 17B is connected to the rotating shaft 46L of the left and right transmission tubes 42, and the part of the upper part of the lifting device 17B adjacent to the part facing the rotating shaft 46L is fixed to the left part of the left and right transmission tubes 42 via a left engaging part 47L such as a snap lock, and the lower part of the lifting device 17B is fixed to the left part of the left and right frames 44 via a left clamping part 48L such as a snap lock. As a result, the output rotation of the engine transmitted to the rotating shaft installed inside the transmission tube 15 is transmitted to the driving sprocket 50 of the lifting device 17B via the rotating shafts installed inside the upper and lower transmission tubes 41 and the left and right transmission tubes 42, and the lifting chain can be rotated.

引起装置１７Ｃの上部に設けられた駆動スプロケット（図示省略）を支持する回転軸（図示省略）は、左右伝動筒４２の回転軸４６Ｒに連結され、引起装置１７Ｃの上部における回転軸４６Ｒに対向する部位に近接する部位は、スナップ錠等の右係合部品４７Ｒを介して左右伝動筒４２の右部に固定され、引起装置１７Ｃの下部は、スナップ錠等の右挟持部品４８Ｒを介して左右フレーム４４の右部に固定されている。これにより、伝動筒１５に内装された回転軸に伝動されたエンジンの出力回転は、上下伝動筒４１と左右伝動筒４２に内装された回転軸を介して引起装置１７Ｃの駆動スプロケットに伝動されて引起チェンを回動することができる。 The rotating shaft (not shown) supporting the drive sprocket (not shown) provided at the top of the lifting device 17C is connected to the rotating shaft 46R of the left and right transmission tubes 42, and the part of the upper part of the lifting device 17C adjacent to the part facing the rotating shaft 46R is fixed to the right part of the left and right transmission tubes 42 via a right engaging part 47R such as a snap lock, and the lower part of the lifting device 17C is fixed to the right part of the left and right frames 44 via a right clamping part 48R such as a snap lock. As a result, the output rotation of the engine transmitted to the rotating shaft installed inside the transmission tube 15 is transmitted to the driving sprocket of the lifting device 17C via the rotating shafts installed inside the upper and lower transmission tubes 41 and the left and right transmission tubes 42, and the lifting chain can be rotated.

左上下フレーム４５Ｌの上部には、引起装置１７Ｂの引起チェン（図示省略）にオイルを注油する注油ノズルを支持する支持部材４９Ｌが設けられ、右上下フレーム４５Ｒの上部には、引起装置１７Ｃの引起チェン（図示省略）にオイルを注油する注油ノズルを支持する支持部材４９Ｌが設けられている。なお、引起チェンには所定の間隔を隔てて引起ラグ３５が装着されている。 A support member 49L is provided on the top of the left upper and lower frames 45L to support an oil nozzle that injects oil into the lifting chain (not shown) of the lifting device 17B, and a support member 49L is provided on the top of the right lower frame 45R to support an oil nozzle that injects oil into the lifting chain (not shown) of the lifting device 17C. In addition, lifting lugs 35 are attached to the lifting chain at a specified interval.

図９に示すように、上下伝動筒４１の前部に設けられた係合部材５２から前方下側に向かって延在する吊下フレーム２４の下部は、分草体１６Ｃの後部に設けられた左右方向に延在するピン５３に回転自在に支持されている。これにより、図１０に示すように、吊下フレーム２４の上部と係合部材５２の係合を解除して、ピン５３の軸心回りに吊下フレーム２４の上部を前側に引き出して引起装置１７Ｂと引起装置１７Ｃの着脱を容易に行うことができる。 As shown in Figure 9, the lower part of the hanging frame 24, which extends downward and forward from the engagement member 52 provided at the front of the upper and lower transmission tubes 41, is rotatably supported by a pin 53 extending in the left-right direction provided at the rear of the grass division body 16C. This makes it possible to easily attach and detach the lifting device 17B and the lifting device 17C by releasing the engagement between the upper part of the hanging frame 24 and the engagement member 52 and pulling the upper part of the hanging frame 24 forward around the axis of the pin 53, as shown in Figure 10.

図９に示すように、引起装置１７Ｂの後面における上部、すなわち、駆動スプロケット５０よりも下側の部位は、左係合部品４７Ｌを介して左右伝動筒４２の左部に固定され、引起装置１７Ｂの後面における下部は、左挟持部品４８Ｌを介して左右フレーム４４の左部に固定されている。 As shown in FIG. 9, the upper part of the rear surface of the lifting device 17B, i.e., the part below the drive sprocket 50, is fixed to the left part of the left/right transmission cylinder 42 via the left engagement part 47L, and the lower part of the rear surface of the lifting device 17B is fixed to the left part of the left/right frame 44 via the left clamping part 48L.

引起装置１７Ｂを左右伝動筒４２等から取外す場合には、先ず、図１１に示すように、引起装置１７Ｂの回転軸５１と左右伝動筒４２の回転軸４６Ｌの連結を解除し、引起装置１７Ｂの後面の上部と左係合部品４７Ｌの係合を解除して、左右フレーム４４の軸心回りに引起装置１７Ｂの上部を前側に引き出す。次に、図１２に示すように、引起装置１７Ｂの下部と左挟持部品４８Ｌの係合を解除して、引起装置１７Ｂの下部を左右フレーム４４の左部から取り外す。これにより、引起装置１７Ｂを左右伝動筒４２等から取外して引起装置１７Ｂの後側に配置された搬送装置１９に絡み付いた穀稈を容易に取除くことができる。 When removing the lifting device 17B from the left and right transmission tubes 42, first, as shown in FIG. 11, the rotation shaft 51 of the lifting device 17B is disconnected from the rotation shaft 46L of the left and right transmission tubes 42, the upper part of the rear surface of the lifting device 17B is disengaged from the left engagement part 47L, and the upper part of the lifting device 17B is pulled forward around the axis of the left and right frames 44. Next, as shown in FIG. 12, the lower part of the lifting device 17B is disengaged from the left clamping part 48L, and the lower part of the lifting device 17B is removed from the left part of the left and right frames 44. This makes it possible to easily remove the straw entangled in the conveying device 19 arranged behind the lifting device 17B by removing the lifting device 17B from the left and right transmission tubes 42, etc.

左上下フレーム４５Ｌは、引起装置１７Ｂの後面と平行に設けられている。これにより、左右伝動筒４２と左右フレーム４４の左部の剛性をより高めることができる。 The left upper and lower frames 45L are arranged parallel to the rear surface of the lifting device 17B. This increases the rigidity of the left and right transmission tubes 42 and the left and right frames 44.

同様に、引起装置１７Ｃの後面における上部、すなわち、駆動スプロケット（図示省略）よりも下側の部位は、右係合部品４７Ｒを介して左右伝動筒４２の右部に固定され、引起装置１７Ｃの後面における下部は、左挟持部品４８Ｌを介して左右フレーム４４の右部に固定されている。 Similarly, the upper part of the rear surface of the lifting device 17C, i.e., the part below the drive sprocket (not shown), is fixed to the right part of the left and right transmission cylinders 42 via the right engagement part 47R, and the lower part of the rear surface of the lifting device 17C is fixed to the right part of the left and right frames 44 via the left clamping part 48L.

引起装置１７Ｃを左右伝動筒４２等から取外す場合には、引起装置１７Ｂと同様に、引起装置１７Ｃの回転軸（図示省略）と左右伝動筒４２の回転軸４６Ｒの連結を解除し、引起装置１７Ｃの後面の上部と右係合部品４７Ｒの係合を解除して、左右フレーム４４の軸心回りに引起装置１７Ｃの上部を前側に引き出す。次に、引起装置１７Ｃの下部と右挟持部品４８Ｒの係合を解除して、引起装置１７Ｃの下部を左右フレーム４４の右部から取り外す。これにより、引起装置１７Ｃを左右伝動筒４２等から取外して引起装置１７Ｃの後側に配置された搬送装置１９に絡み付いた穀稈を容易に取除くことができる。 When removing the lifting device 17C from the left and right transmission tubes 42, etc., the lifting device 17C's rotating shaft (not shown) is disconnected from the left and right transmission tubes 42's rotating shaft 46R in the same manner as the lifting device 17B, the upper part of the rear surface of the lifting device 17C is disengaged from the right engagement part 47R, and the upper part of the lifting device 17C is pulled forward around the axis of the left and right frames 44. Next, the lower part of the lifting device 17C is disengaged from the right clamping part 48R, and the lower part of the lifting device 17C is removed from the right part of the left and right frames 44. This makes it possible to easily remove the straw entangled in the conveying device 19 arranged behind the lifting device 17C by removing the lifting device 17C from the left and right transmission tubes 42, etc.

右上下フレーム４５Ｒは、引起装置１７Ｃの後面と平行に設けられている。これにより、左右伝動筒４２と左右フレーム４４の右部の剛性をより高めることができる。 The upper right and lower right frames 45R are arranged parallel to the rear surface of the lifting device 17C. This increases the rigidity of the left and right transmission tubes 42 and the right parts of the left and right frames 44.

図１３，１４に示すように、左係合部品４７Ｌは、左右伝動筒４２の左部に設けられた係合部６０と、引起装置１７Ｂの後面に設けられた被係合部（請求項における「第１被係合部」）６１から形成されている。係合部６０は、取付プレート６０Ａと、取付プレート６０Ａに設けられた上下方向に延在するピン６０Ｂと、ピン６０Ｂに回転自在に装着されたレバー６０Ｃと、レバー６０Ｃに設けられたフック６０Ｄから形成されている。なお、被係合部６１は、引起装置１７Ｂの後面から後側に向けて延在し、被係合部６１の右部には、フック６０Ｄが係合する凹凸が形成されている。これにより、引起装置１７Ｂの上部を、左右伝動筒４２の左部に容易に固定したり、左右伝動筒４２の左部から取外すことができる。 13 and 14, the left engaging part 47L is formed of an engaging part 60 provided on the left part of the left-right transmission tube 42 and an engaged part (the "first engaged part" in the claims) 61 provided on the rear surface of the lifting device 17B. The engaging part 60 is formed of a mounting plate 60A, a pin 60B extending in the vertical direction provided on the mounting plate 60A, a lever 60C rotatably attached to the pin 60B, and a hook 60D provided on the lever 60C. The engaged part 61 extends rearward from the rear surface of the lifting device 17B, and the right part of the engaged part 61 is formed with a projection and recess for engaging with the hook 60D. This allows the upper part of the lifting device 17B to be easily fixed to the left part of the left-right transmission tube 42 or removed from the left part of the left-right transmission tube 42.

同様に、右係合部品４７Ｒは、左右伝動筒４２の右部に設けられた係合部６０と、引起装置１７Ｃの後面に設けられた被係合部６１から形成されている。係合部６０は、取付プレート６０Ａと、取付プレート６０Ａに設けられた上下方向に延在するピン６０Ｂと、ピン６０Ｂに回転自在に装着されたレバー６０Ｃと、レバー６０Ｃに設けられたフック６０Ｄから形成されている。なお、被係合部６１は、引起装置１７Ｃの後面から後側に向けて延在し、被係合部６１の左部には、フック６０Ｄが係合する凹凸が形成されている。これにより、引起装置１７Ｃの上部を、左右伝動筒４２の右部に容易に固定したり、左右伝動筒４２の右部から取外すことができる。 Similarly, the right engaging part 47R is formed from an engaging part 60 provided on the right part of the left-right transmission cylinder 42 and an engaged part 61 provided on the rear surface of the lifting device 17C. The engaging part 60 is formed from a mounting plate 60A, a pin 60B extending in the vertical direction provided on the mounting plate 60A, a lever 60C rotatably attached to the pin 60B, and a hook 60D provided on the lever 60C. The engaged part 61 extends rearward from the rear surface of the lifting device 17C, and the left part of the engaged part 61 is formed with an uneven surface with which the hook 60D engages. This allows the upper part of the lifting device 17C to be easily fixed to the right part of the left-right transmission cylinder 42 or removed from the right part of the left-right transmission cylinder 42.

図１５，１６に示すように、左挟持部品４８Ｌは、引起装置１７Ｂの後面の下部に設けられた上挟持部６５と、上挟持部６５の下側に設けられた下挟持部６６から形成されている。 As shown in Figures 15 and 16, the left clamping part 48L is formed of an upper clamping part 65 provided on the lower part of the rear surface of the lifting device 17B and a lower clamping part 66 provided below the upper clamping part 65.

上挟持部６５は、取付プレート６５Ａと、取付プレート６５Ａの下部に設けられた左右方向に延在するピン６５Ｂと、ピン６５Ｂに支持された略円弧状の上挟持本体部６５Ｃと、取付プレート６５Ａの上部に設けられた左右方向に延在するピン６５Ｄと、ピン６５Ｄに回転自在に装着されたレバー６５Ｅと、レバー６５Ｅに設けられたフック６５Ｆから形成されている。また、上挟持本体部６５Ｃの内周面にはゴム等の弾性部材を積層するのが好ましい。また、下挟持部６６は、ピン６５Ｂに回転自在に支持された略円弧状の下挟持本体部６６Ａと、下挟持本体部６６Ａの後端部に設けられた被係合部（請求項における「第２被係合部」）６６Ｂから形成され、被係合部６６Ｂの後部は後方下側に湾曲している。これにより、引起装置１７Ｂの下部を、左右フレーム４４の左部に容易に固定したり、左右フレーム４４の左部から取外すことができる。また、下挟持本体部６６Ａの内周面にはゴム等の弾性部材を積層するのが好ましく、下挟持本体部６６Ａを高硬度の弾性部材で製作することもできる。 The upper clamping part 65 is formed of a mounting plate 65A, a pin 65B extending in the left-right direction provided at the bottom of the mounting plate 65A, a substantially arc-shaped upper clamping body part 65C supported by the pin 65B, a pin 65D extending in the left-right direction provided at the top of the mounting plate 65A, a lever 65E rotatably attached to the pin 65D, and a hook 65F provided on the lever 65E. It is preferable to laminate an elastic material such as rubber on the inner peripheral surface of the upper clamping body part 65C. The lower clamping part 66 is formed of a substantially arc-shaped lower clamping body part 66A rotatably supported by the pin 65B, and an engaged part ("second engaged part" in the claims) 66B provided at the rear end of the lower clamping body part 66A, and the rear part of the engaged part 66B is curved downward toward the rear. This allows the lower part of the lifting device 17B to be easily fixed to the left part of the left and right frames 44, and removed from the left part of the left and right frames 44. It is also preferable to laminate an elastic material such as rubber on the inner circumferential surface of the lower clamping body 66A, and the lower clamping body 66A can also be made of a high-hardness elastic material.

同様に、右挟持部品４８Ｒは、引起装置１７Ｃの後面の下部に設けられた上挟持部６５と、上挟持部６５の下側に設けられた下挟持部６６から形成されている。 Similarly, the right clamping part 48R is formed from an upper clamping part 65 provided on the lower part of the rear surface of the lifting device 17C and a lower clamping part 66 provided below the upper clamping part 65.

上挟持部６５は、取付プレート６５Ａと、取付プレート６５Ａの下部に設けられた左右方向に延在するピン６５Ｂと、ピン６５Ｂに支持された略円弧状の上挟持本体部６５Ｃと、取付プレート６５Ａの上部に設けられた左右方向に延在するピン６５Ｄと、ピン６５Ｄに回転自在に装着されたレバー６５Ｅと、レバー６５Ｅに設けられたフック６５Ｆから形成されている。また、上挟持本体部６５Ｃの内周面にはゴム等の弾性部材を積層するのが好ましい。また、下挟持部６６は、ピン６５Ｂに回転自在に支持された略円弧状の下挟持本体部６６Ａと、下挟持本体部６６Ａの後端部に設けられた被係合部６６Ｂから形成され、被係合部６６Ｂの後部は後方下側に湾曲している。これにより、引起装置１７Ｃの下部を、左右フレーム４４の右部に容易に固定したり、左右フレーム４４の左部から取外すことができる。また、下挟持本体部６６Ａの内周面にはゴム等の弾性部材を積層するのが好ましく、下挟持本体部６６Ａを高硬度の弾性部材で製作することもできる。 The upper clamping part 65 is formed of a mounting plate 65A, a pin 65B extending in the left-right direction provided at the bottom of the mounting plate 65A, a substantially arc-shaped upper clamping body part 65C supported by the pin 65B, a pin 65D extending in the left-right direction provided at the top of the mounting plate 65A, a lever 65E rotatably attached to the pin 65D, and a hook 65F provided on the lever 65E. It is also preferable to laminate an elastic material such as rubber on the inner peripheral surface of the upper clamping body part 65C. The lower clamping part 66 is formed of a substantially arc-shaped lower clamping body part 66A rotatably supported by the pin 65B, and an engaged part 66B provided at the rear end of the lower clamping body part 66A, and the rear part of the engaged part 66B is curved downward and rearward. This allows the lower part of the lifting device 17C to be easily fixed to the right part of the left-right frame 44 or removed from the left part of the left-right frame 44. In addition, it is preferable to laminate an elastic material such as rubber on the inner peripheral surface of the lower clamping body 66A, and the lower clamping body 66A can also be made of a high-hardness elastic material.

図１７，１８には、６条刈りの他のコンバインを図示している。上述した４条刈りコンバインと同一部品には同一符号を付して説明を省略する。 Figures 17 and 18 show another six-row combine harvester. The same parts as those in the four-row combine harvester described above are given the same reference numerals and will not be described.

刈取装置３の引起装置７０は、６個の引起装置７０Ａ～７０Ｆから形成されている。引起装置７０Ｂの引起こし反対側の右部と引起装置７０Ｃの引起こし反対側の左部を対向して配置し、引起装置７０Ｄの引起こし反対側の右部と引起装置７０Ｅの引起こし反対側の左部を対向して配置している。これにより、引起装置７０Ａ，７０Ｂの間で２条、引起装置７０Ｃ，７０Ｄの間で２条、引起装置７０Ｅ，７０Ｆの間で２条の計６条の穀稈を同時に引起こすことができる。また、操縦部５はキャビン９で覆われている。 The lifting device 70 of the harvesting device 3 is made up of six lifting devices 70A to 70F. The right side of lifting device 70B faces the left side of lifting device 70C, and the right side of lifting device 70D faces the left side of lifting device 70E. This allows a total of six rows of stalks to be lifted simultaneously: two rows between lifting devices 70A and 70B, two rows between lifting devices 70C and 70D, and two rows between lifting devices 70E and 70F. The steering unit 5 is covered by a cabin 9.

引起装置７０Ａは、引起装置１７Ａと同様に上下伝動筒３０Ｌとステー３２Ｌに固定され、引起装置７０Ｆは、引起装置１７Ｄと同様に上下伝動筒３０Ｒとステー３２Ｒに固定されている。なお、引起装置７０Ａは、引起装置１７Ａと同様に形成され、引起装置７０Ｆは、引起装置１７Ｄと同様に形成されている。 The lifting device 70A is fixed to the upper and lower transmission tubes 30L and the stays 32L in the same manner as the lifting device 17A, and the lifting device 70F is fixed to the upper and lower transmission tubes 30R and the stays 32R in the same manner as the lifting device 17D. The lifting device 70A is formed in the same manner as the lifting device 17A, and the lifting device 70F is formed in the same manner as the lifting device 17D.

引起装置７０Ｂと引起装置７０Ｄは、引起装置１７Ｂと同様に左側の上下伝動筒４１の下部に設けられた左右伝動筒４２と左側のステー４３の上部に設けられた左右フレーム４４の左部に固定されている。 The lifting device 70B and the lifting device 70D are fixed to the left and right transmission tube 42 provided at the bottom of the left-side up-down transmission tube 41 and to the left part of the left and right frame 44 provided at the top of the left-side stay 43, similar to the lifting device 17B.

引起装置７０Ｂと引起装置７０Ｄは、引起装置１７Ｂと同様に形成されており、引起装置７０Ｂと引起装置７０Ｄの後面には、左係合部品４７Ｌの被係合部６１が設けられ、引起装置７０Ｂと引起装置７０Ｄの後面の下部には、左挟持部品４８Ｌが設けられている。また、左側の上下伝動筒４１の下部に設けられた左右伝動筒４２の左部には、左係合部品４７Ｌの係合部６０が設けられ、右部には、右係合部品４７Ｒの係合部６０が設けられている。 The raising device 70B and the raising device 70D are formed in the same manner as the raising device 17B, and the rear surface of the raising device 70B and the raising device 70D is provided with an engaged portion 61 of the left engaging part 47L, and the lower portion of the rear surface of the raising device 70B and the raising device 70D is provided with a left clamping part 48L. In addition, the left portion of the left-right transmission tube 42 provided at the lower portion of the left-side up-down transmission tube 41 is provided with an engaging portion 60 of the left engaging part 47L, and the right portion is provided with an engaging portion 60 of the right engaging part 47R.

左側の上下伝動筒４１の下部に設けられた左右伝動筒４２の左部と左側のステー４３の上部に設けられた左右フレーム４４の左部は、左上下フレーム４５Ｌで連結され、左側の上下伝動筒４１の下部に設けられた左右伝動筒４２の右部と左側のステー４３の上部に設けられた左右フレーム４４の右部は、右上下フレーム４５Ｒで連結されている。 The left part of the left-right transmission tube 42 provided at the bottom of the left-side vertical transmission tube 41 and the left part of the left-right frame 44 provided at the top of the left-side stay 43 are connected by the left-side vertical frame 45L, and the right part of the left-side transmission tube 42 provided at the bottom of the left-side vertical transmission tube 41 and the right part of the left-side frame 44 provided at the top of the left-side stay 43 are connected by the right-side lower frame 45R.

引起装置７０Ｃと引起装置７０Ｅは、引起装置１７Ｃと同様に右側の上下伝動筒４１の下部に設けられた左右伝動筒４２と右側のステー４３の上部に設けられた左右フレーム４４の右部に固定されている。 The lifting device 70C and the lifting device 70E are fixed to the right parts of the left-right frame 44, which is attached to the upper part of the right stay 43 and the left-right transmission tube 42, which is attached to the lower part of the right-side up-down transmission tube 41, just like the lifting device 17C.

引起装置７０Ｃと引起装置７０Ｅは、引起装置１７Ｃと同様に形成されており、引起装置７０Ｃと引起装置７０Ｅの後面には、右係合部品４７Ｒの被係合部６１が設けられ、引起装置７０Ｃと引起装置７０Ｅの後面の下部には、右挟持部品４８Ｒが設けられている。また、右側の上下伝動筒４１の下部に設けられた左右伝動筒４２の左部には、左係合部品４７Ｌの係合部６０が設けられ、右部には、右係合部品４７Ｒの係合部６０が設けられている。 The raising device 70C and the raising device 70E are formed in the same manner as the raising device 17C, and the rear surfaces of the raising device 70C and the raising device 70E are provided with the engaged portion 61 of the right engaging part 47R, and the lower portion of the rear surfaces of the raising device 70C and the raising device 70E is provided with the right clamping part 48R. In addition, the left portion of the left-right transmission tube 42 provided at the lower portion of the right-side up-down transmission tube 41 is provided with the engaging portion 60 of the left engaging part 47L, and the right portion is provided with the engaging portion 60 of the right engaging part 47R.

右側の上下伝動筒４１の下部に設けられた左右伝動筒４２の左部と右側のステー４３の上部に設けられた左右フレーム４４の左部は、左上下フレーム４５Ｌで連結され、右側の上下伝動筒４１の下部に設けられた左右伝動筒４２の右部と右側のステー４３の上部に設けられた左右フレーム４４の右部は、右上下フレーム４５Ｒで連結されている。 The left part of the left-right transmission tube 42 provided at the bottom of the right-side vertical transmission tube 41 and the left part of the left-right frame 44 provided at the top of the right-side stay 43 are connected by the left upper and lower frame 45L, and the right part of the left-right transmission tube 42 provided at the bottom of the right-side vertical transmission tube 41 and the right part of the left-right frame 44 provided at the top of the right-side stay 43 are connected by the right upper and lower frame 45R.

図１３，１４，１９，２０に示すように、引起装置１７には、駆動スプロケット５０に係回された引起チェンの張力を調整する張力調整部８０が設けられている。 As shown in Figures 13, 14, 19, and 20, the lifting device 17 is provided with a tension adjustment unit 80 that adjusts the tension of the lifting chain engaged with the drive sprocket 50.

張力調整部８０は、テンションスプロケット８１と、テンションスプロケット８１を上下方向に移動させる移動部８２から形成されている。 The tension adjustment unit 80 is made up of a tension sprocket 81 and a moving unit 82 that moves the tension sprocket 81 in the vertical direction.

移動部８２は、駆動スプロケット５０を支持する回転軸５１を内嵌するブラケット８３に設けられたフレーム８４と、テンションスプロケット８１を支持する回転軸を内嵌するブラケット８５に設けられた調整部材８６から形成されている。これにより、調整部材８６でブラケット８５を上方に移動すると引起チェンの張力は緊張し、調整部材８６でブラケット８５を下方に移動すると引起チェンの張力は弛緩することができる。 The moving part 82 is formed of a frame 84 attached to a bracket 83 into which the rotating shaft 51 supporting the drive sprocket 50 is fitted, and an adjustment member 86 attached to a bracket 85 into which the rotating shaft supporting the tension sprocket 81 is fitted. As a result, when the bracket 85 is moved upward with the adjustment member 86, the tension of the pulling chain is tightened, and when the bracket 85 is moved downward with the adjustment member 86, the tension of the pulling chain is relaxed.

フレーム８４は、側面視においてフレーム８４はＪ文字形状に形成され、ブラケット８５の上部から上方に向かって延在した後に、上端部から後方に向かって延在し、次に、後端部から下方に向かって延在するフック（請求項における「第１フック」）８７が形成されている。また、引起装置１７の背面における上下方向の中間部で、引起ラグ３５で穀稈を引起こす側に偏移した部位には上下一対のフック（請求項における「第２フック」）８８が設けられている。なお、フック８７，８８の内周面にはウレタンやゴムの振動を抑制する弾性部材を貼り付けるのが好ましい。 The frame 84 is formed in a J-shape when viewed from the side, and has a hook (the "first hook" in the claims) 87 that extends upward from the top of the bracket 85, then extends rearward from the upper end, and then extends downward from the rear end. In addition, a pair of upper and lower hooks (the "second hook" in the claims) 88 are provided at the vertical middle part of the back of the lifting device 17, at a part shifted to the side where the lifting lug 35 lifts the stalks. It is preferable to attach an elastic member made of urethane or rubber to the inner surface of the hooks 87, 88 to suppress vibration.

４条刈りのコンバインの引起装置１７Ｂ，１７Ｃを取外して引起装置１７Ｂ等の後側に配置された搬送装置１９に絡み付いた穀稈を容易に取除く場合には、図２１，２２に示すように、刈取装置３の左右両側に設けられた分草体１６の留め具(図示省略)や、図２３に示すように、操縦部５の作業者が昇降時に把持するステップの前側に設けられた上下方向に延長する昇降ガイド５Ａの留め具(図示省略)に、引起装置１７Ｂ等のフック８７を係止することができる。これにより、搬送装置１９の前方に広い作業空間を確保し、作業者が誤って頭部を引起装置１７Ｂ等にぶつけるのを防止することができる。また、引起装置１７Ｂ等の摺動部に圃場の土が付着して作動不良になるのを抑制することもできる。 When removing the lifting devices 17B, 17C of a four-row combine harvester to easily remove the stalks entangled in the transport device 19 located behind the lifting devices 17B, etc., the hooks 87 of the lifting devices 17B, etc. can be engaged with the fasteners (not shown) of the grass body 16 provided on both the left and right sides of the harvesting device 3, as shown in Figures 21 and 22, or with the fasteners (not shown) of the lifting guide 5A that extends vertically and is provided in front of the step that the operator of the steering unit 5 holds when ascending and descending, as shown in Figure 23. This ensures a wide working space in front of the transport device 19 and prevents the operator from accidentally hitting his head against the lifting devices 17B, etc. It also prevents soil from adhering to the sliding parts of the lifting devices 17B, etc., causing malfunctions.

留め具の近傍にはセンサが設けられている。センサが留め具に係止された引起装置１７Ｂ等を検出した場合には、エンジンと刈取装置３の間に設けられた刈取クラッチの接続は解除されてエンジンの出力回転が刈取装置３に伝動されなくなる。これにより、留め具に引起装置１７Ｂ等のフック８７を係止して搬送装置１９に絡み付いた穀稈を安全に取り除くことができる。 A sensor is provided near the fastener. When the sensor detects the lifting device 17B or the like being hooked to the fastener, the harvesting clutch provided between the engine and the harvesting device 3 is released and the engine output rotation is no longer transmitted to the harvesting device 3. This allows the hook 87 of the lifting device 17B or the like to be hooked to the fastener, allowing the stalks entangled in the conveying device 19 to be safely removed.

また、図２４に示すように、４条刈りのコンバインの引起装置１７Ｂ等を取外して脱穀装置４の扱胴の上部を覆う扱胴カバー４Ａを開閉する前後方向に延在する開閉レバー４Ｂに引起装置１７Ｂ等のフック８７を係止することができる。これにより、引起装置１７Ｂ等の摺動部に圃場の土が付着して作動不良になるのを抑制することもできる。また、留め具等の付品点数を削減することもできる。 As shown in FIG. 24, the lifting device 17B of a four-row combine can be removed and the hook 87 of the lifting device 17B can be engaged with the opening/closing lever 4B that extends in the front-rear direction and opens and closes the threshing drum cover 4A that covers the top of the threshing drum of the threshing device 4. This prevents soil from the field from adhering to the sliding parts of the lifting device 17B, causing malfunctions. It also reduces the number of attachments, such as fasteners.

さらに、図２５に示すように、コンバインの進行方向の左側に植立する未刈穀稈を左方に寄せる機体フレーム１の前後方向に延在するナローガイド１Ａに引起装置１７Ｂ等のフック８８を係止することができる。これにより、引起装置１７Ｂ等の摺動部に圃場の土が付着して作動不良になるのを抑制することもでき、引起装置１７Ｂ等がナローガイド１Ａから脱落するのを抑制することができる。 Furthermore, as shown in FIG. 25, the hook 88 of the lifting device 17B, etc. can be engaged with the narrow guide 1A extending in the fore-and-aft direction of the machine frame 1, which shifts the unharvested stalks planted on the left side of the direction of travel of the combine to the left. This prevents soil from the field from adhering to the sliding parts of the lifting device 17B, etc., causing malfunctions, and prevents the lifting device 17B, etc. from falling off the narrow guide 1A.

なお、上述では、４条刈りのコンバインの引起装置１７Ｂを例に取って引起装置１７について説明したが、６条刈りのコンバインの引起装置７０も同様であり説明を省略する。また、図２１～２５には、６条刈りのコンバインの引起装置７０Ｅを分草体１６の留め具等に係止した場合を図示している。 In the above, the lifting device 17 was explained using the lifting device 17B of a four-row combine as an example, but the lifting device 70 of a six-row combine is similar and will not be explained here. Also, Figures 21 to 25 show the case where the lifting device 70E of the six-row combine is engaged with a fastener or the like of the grass body 16.

１機体フレーム
３刈取装置
４脱穀装置
５操縦部
５Ａ昇降ガイド
１０刈取フレーム
１５伝動筒
１６分草体
１７引起装置
１７Ｂ引起装置
１７Ｃ引起装置
１８刈刃装置
１９搬送装置
２２前後フレーム
２３フレーム
３５引起ラグ
４１上下伝動筒
４２左右伝動筒
４３ステー
４４左右フレーム
４５Ｌ左上下フレーム
４５Ｒ右上下フレーム
４７Ｌ左係合部品
４７Ｒ右係合部品
４８Ｌ左挟持部品
４８Ｒ右挟持部品
５０駆動スプロケット
６０係合部
６１被係合部（第１被係合部）
６５上挟持部
６５Ｂピン
６５Ｃ上挟持本体部
６６下挟持部
６６Ａ下挟持本体部
６６Ｂ被係合部（第２被係合部）
７０引起装置
７０Ｂ引起装置
７０Ｃ引起装置
７０Ｄ引起装置
７０Ｅ引起装置
８７フック（第１フック）
８８フック（第２フック） 1 Machine frame 3 Harvesting device 4 Threshing device 5 Control unit 5A Lifting guide 10 Harvesting frame 15 Transmission tube 16 Grass division body 17 Raising device 17B Raising device 17C Raising device 18 Cutting blade device 19 Conveying device 22 Front and rear frames 23 Frame 35 Raising lug 41 Upper and lower transmission tubes 42 Left and right transmission tubes 43 Stays 44 Left and right frames 45L Left upper and lower frames 45R Right and upper lower frames 47L Left engaging part 47R Right engaging part 48L Left clamping part 48R Right clamping part 50 Drive sprocket 60 Engagement part 61 Engaged part (first engaged part)
65 Upper clamping part 65B Pin 65C Upper clamping main body part 66 Lower clamping part 66A Lower clamping main body part 66B Engaged part (second engaged part)
70 Lifting device 70B Lifting device 70C Lifting device 70D Lifting device 70E Lifting device 87 Hook (first hook)
88 Hook (2nd Hook)

Claims

A combine harvester having a harvesting device (3) provided in front of a machine frame (1) on which an engine is mounted, a threshing device (4) provided on the rear left side of the harvesting device (3), and a control section (5) provided on the rear right side of the harvesting device (3),
A reaping frame (10) of the reaping device (3) is provided with a culm dividing body (16) for dividing the culms, a lifting device (17, 70) for raising the divided culms, a cutting blade device (18) for cutting the base of the raised culms, and a conveying device (19) for clamping the cut culms and conveying them to the threshing device (4),
A first hook (87) is provided on the upper part of the back surface of the lifting device (17, 70),
A pair of second hooks (88) are provided at a position offset to one side in the left-right direction from the middle part in the up-down direction on the back surface of the lifting device (17, 70) at a predetermined interval in the up-down direction,
The first hook (87) is disposed above a drive sprocket (50) to which the output rotation of the engine is transmitted,
The second hook (88) is disposed on the side that raises the raising lug (35) provided with the chain engaged with the drive sprocket (50) to raise the stalk,
The grass cutting body (16) and the lifting guide (5A ) of the steering part (5) arranged on both sides of the harvesting device (3) are formed with a fastener for engaging the first hook (87) of the lifting device (17, 70) removed from the harvesting device (3);
A first hook (87) of the lifting device (17, 70) detached from the reaping device (3) can be engaged with an opening/closing lever (4B) extending in the front-rear direction for opening and closing the threshing cover (4A) of the threshing device (4);
a second hook (88) of the lifting device (17, 70) detached from the harvesting device (3) can be engaged with a narrow guide (1A) extending in the front-rear direction and provided on the left side of the machine frame (1) ;
At least one or more upper and lower transmission cylinders (41) extending downward from the intermediate portion of a transmission cylinder (15) extending in the left-right direction and disposed at the upper portion of the reaping frame (10), and a left-right transmission cylinder (42) extending in the left-right direction from a lower portion of the upper and lower transmission cylinders (41),
At least one or more stays (43) extending upward from the middle part of the frame (23) that connects the middle parts of the front and rear frames (22) that support the grass body (16) in the left-right direction are provided in the middle part of the frame (23), and left and right frames (44) extending in the left-right direction from the upper part of the stays (43) are provided.
The combine harvester is characterized in that the upper part of the lifting device (17, 70) arranged in the middle of the lifting devices (17, 70) in the left-right direction is detachably fixed to the left-right transmission cylinder (42) and the lower part is detachably fixed to the left-right frames (44).

The combine harvester according to claim 1, in which the fastener is provided with a sensor that detects the first hook (87), and when the sensor detects the first hook (87), the output rotation of the engine is not transmitted to the harvesting device (3).

The combine harvester according to claim 1, wherein an elastic material is laminated on the inner periphery of the first hook (87) and the second hook (88).

The right side of the lifting device (17B) located second from the left side of the lifting devices (17) is disposed opposite to the left side of the lifting device (17C) located third from the left side of the lifting devices (17),
The upper part of the lifting device (17B) is detachably fixed to the left part of the left-right transmission cylinder (42) by a left engaging part (47L), and the lower part is detachably fixed to the left part of the left-right frame (44) by a left clamping part (48L).
2. A combine harvester as described in claim 1, wherein the upper part of the lifting device (17C) is detachably fixed to the right part of the left and right transmission cylinder (42) by a right engaging part (47R) and the lower part is detachably fixed to the right part of the left and right frames (44) by a right clamping part (48R).

The right side of the lifting device (70B) located second from the left side of the lifting devices (70) is disposed opposite to the left side of the lifting device (70C) located third from the left side of the lifting devices (70),
The right side of the lifting device (70D) located fourth from the left side of the lifting devices (70) is disposed opposite to the left side of the lifting device (70E) located fifth from the left side of the lifting devices (70),
The upper part of the lifting device (70B) is detachably fixed to the left part of the left-right transmission cylinder (42) extending from the lower part of the left-side vertical transmission cylinder (41) by a left engaging part (47L), and the lower part is detachably fixed to the left part of the left-right frame (44) extending from the upper part of the left-side stay (43) by a left clamping part (48L).
The upper part of the lifting device (70C) is detachably fixed to the right part of the left-right transmission cylinder (42) extending from the lower part of the left-side vertical transmission cylinder (41) by a right engaging part (47R), and the lower part is detachably fixed to the right part of the left-right frame (44) extending from the upper part of the left-side stay (43) by a right clamping part (48R).
The upper part of the lifting device (70D) is detachably fixed to the left part of the left-right transmission cylinder (42) extending from the lower part of the right-side vertical transmission cylinder (41) by a left engaging part (47L), and the lower part is detachably fixed to the left part of the left-right frame (44) extending from the upper part of the right-side stay (43) by a left clamping part (48L).
2. A combine harvester as described in claim 1, wherein an upper portion of the lifting device (70E) is detachably fixed to the right portion of the left-right transmission cylinder (42) extending from the lower portion of the right-side vertical transmission cylinder (41) by a right engaging part (47R), and a lower portion is detachably fixed to the right portion of the left-right frame (44) extending from the upper portion of the right-side stay (43) by a right clamping part (48R).

The left engaging part (47L) is formed by an engaging part (60) provided on the left/right transmission cylinder (42) and a first engaged part (61) provided on a rear surface of the raising device (17B, 70B, 70B),
The right engaging part (47R) is formed by an engaging part (60) provided on the left and right transmission cylinder (42) and a first engaged part (61) provided on a rear surface of the raising device (17C, 70C, 70E),
6. A combine harvester according to claim 4 or 5 , wherein said first engaged portion (61) is formed with projections and recesses.

The left clamping part (48L) is formed by an upper clamping part (65) and a lower clamping part (66) provided at the lower part of the lifting device (17B, 70B, 70D),
The right clamping part (48R) is formed by an upper clamping part (65) and a lower clamping part (66) provided at the lower part of the lifting device (17C, 70C, 70E),
The upper clamping portion (65) is provided with a pin (65B) extending in the left-right direction,
The front portion of the arc-shaped upper clamping body portion (65C) of the upper clamping portion (65) is fixed to the pin (65B),
A front portion of the arc-shaped lower clamping body portion (66A) of the lower clamping portion (66) is rotatably fixed to the pin (65B),
A second engaged portion (66B) is provided at the rear of the lower clamping body portion (66A);
6. A combine harvester according to claim 4 or 5 , wherein a rear portion of the second engaged portion (66B) is curved rearward and downward.

8. A combine harvester according to claim 7 , wherein an elastic member is laminated on inner peripheral surfaces of the upper clamping body portion (65C) and the lower clamping body portion (66A).

The combine harvester according to claim 1, in which the left and right transmission tubes (42) and the left and right frames (44) are connected to a left upper and lower frame (45L) extending in the vertical direction, and the right and left transmission tubes (42) and the left and right frames (44) are connected to a right and lower frame (45R) extending in the vertical direction.

10. The combine harvester according to claim 9 , wherein the left upper and lower frames (45L) and the right upper and lower frames (45R) are disposed parallel to a rear surface of the lifting device (17, 70) in a side view.