JP2004000300A - Combine - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To simplify the supporting structure of a reaping section (8) and to improve handling workability such as the turning operation of the reaping section to a lateral side. <P>SOLUTION: The combine is equipped with the reaping section (8) and a supporting axis for supporting the reaping section (8) in a freely laterally movable state. The reaping section (8) is made to be supported with an axis body (12) and the section (8) mainly the axis body (12) is elevated, while the reaping section (8) is turned around the supporting axis (32) to the lateral side to set the front side of a threshing section (4) and the lateral portion of a driving table (18) open. <P>COPYRIGHT: (C)2004,JPO

Description

　本発明は例えば刈取部及び脱穀部を備え、連続的に穀稈を刈取って脱穀するコンバインに関する。 (4) The present invention relates to a combine that includes, for example, a cutting section and a threshing section, and continuously cuts a culm to thresh.

　従来、刈取部を備え、刈取部を側方移動自在に支持する支点軸を設けると共に、刈取部を軸体に支持させ、軸体を中心に刈取部を昇降させる技術がある。（例えば、特許文献１参照） Conventionally, there has been a technique in which a fulcrum shaft that includes a mowing portion and supports the mowing portion movably laterally is provided, the mowing portion is supported by a shaft, and the mowing portion is moved up and down around the shaft. (For example, see Patent Document 1)

実開平２−９０９３０号公報JP-A-2-90930

　前記従来技術は、軸体を支える架台の下側に支点軸を設け、刈取部と架台を一体的に側方に回動させるから、側方に回動させる部位の軽量化を容易に行い得ないと共に、刈取部を側方に回動させるとき、刈取部を地上に持上げるリンク機構を必要とする等の構造上及び取扱い上の問題がある。 In the prior art, the fulcrum shaft is provided below the mount supporting the shaft, and the mowing unit and the mount are integrally turned sideways, so that the weight of the part to be turned sideways can be easily reduced. In addition, there are structural and handling problems such as the necessity of a link mechanism for lifting the mowing part to the ground when the mowing part is rotated to the side.

　然るに、本発明は、請求項１の如く、刈取部を備え、刈取部を側方移動自在に支持する支点軸を設けるコンバインにおいて、刈取部を軸体に支持させ、軸体を中心に刈取部を昇降させる一方、前記支点軸回りに刈取部を側方に回転させて脱穀部前側並びに運転台側部を開放するものである。 According to the present invention, a combiner provided with a reaping portion and provided with a fulcrum shaft for supporting the reaping portion movably in the lateral direction, wherein the reaping portion is supported by the shaft body, and the reaping portion is centered on the shaft body. And the cutting section is rotated sideways around the fulcrum axis to open the front side of the threshing section and the side of the cab.

請求項１に係る発明は、刈取部を備え、刈取部を側方移動自在に支持する支点軸を設けるコンバインにおいて、刈取部を軸体に支持させ、軸体を中心に刈取部を昇降させる一方、前記支点軸回りに刈取部を側方に回転させて脱穀部前側並びに運転台側部を開放するもので、例えば前記軸体一側を支点軸に支持させて刈取部を側方に回動させることにより、軸体などの刈取部の基部構造の重量軽減、並びに高所での移動による他の部品との干渉防止、並びに側方回動させる刈取部の持上げ構造の簡略化などを容易に行うことができ、刈取部の支持構造の簡略化並びに側方への回動操作など取扱い作業性の向上などを図ることができるものである。     The invention according to claim 1 is a combine that includes a reaping portion and a fulcrum shaft that supports the reaping portion movably laterally, wherein the reaping portion is supported by a shaft, and the reaping portion is moved up and down around the shaft. The cutting section is rotated sideways around the fulcrum axis to open the threshing section front side and the driver's cab side section. By doing so, it is easy to reduce the weight of the base structure of the cutting unit such as the shaft, prevent interference with other parts due to movement at a high place, and simplify the lifting structure of the cutting unit that rotates sideways. Therefore, it is possible to simplify the support structure of the mowing unit and to improve the handling workability such as a lateral turning operation.

　以下本発明の実施例を図面に基づいて詳述する。図１は刈取部の昇降支点筒軸部の平面図、図２は全体の側面図、図３は同平面図であり、図中（１）は走行クローラ（２ａ）（２ｂ）を装設するトラックフレーム、（３）は前記トラックフレーム（１）に架設する機台、（４）はフィードチェン（５）を左側に張架し扱胴（６）及び処理胴（７）を内蔵している脱穀部、（８）は刈刃（９）及び穀稈搬送機構（１０）などを備える刈取部、（１１）は昇降支点筒軸（１２）を介して刈取部（８）を昇降させる油圧昇降シリンダ、（１３）は排藁チェン（１４）終端を臨ませる排藁処理部、（１５）は脱穀部（４）からの穀粒を揚穀筒（１６）を介して搬入する穀物タンク、（１７）は前記タンク（１５）の穀粒を機外に搬出する排出オーガ、（１８）は運転操作部（１９）及び運転席（２０）を備える運転台、（２１）は運転席（２０）下方に設けるエンジンであり、連続的に穀稈を刈取って脱穀するように構成している。 Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. FIG. 1 is a plan view of an elevating fulcrum cylindrical shaft portion of the mowing part, FIG. 2 is a side view of the whole, and FIG. 3 is a plan view of the same, where (1) is provided with traveling crawlers (2a) and (2b). A track frame, (3) is a machine installed on the track frame (1), and (4) is a feed chain (5) stretched to the left side and has a built-in handling cylinder (6) and a processing cylinder (7). Threshing unit, (8) is a cutting unit provided with a cutting blade (9) and a grain culm transport mechanism (10), etc., (11) is a hydraulic lift that raises and lowers the cutting unit (8) via a lifting fulcrum cylindrical shaft (12). A cylinder, (13) a straw processing unit that faces the end of the straw chain (14), (15) a grain tank that carries in the grains from the threshing unit (4) via a fryer (16), 17) is a discharge auger for carrying out the grains of the tank (15) out of the machine, and (18) is a driving operation unit (19) and a driving seat (20) Cab equipped with, it is configured to threshing harvests (21) the driver's seat (20) an engine provided below, continuously culms.

　さらに、図４、図５、図６に示す如く、機台（３）前側に固定させるミッションケース（２２）をエンジン（２１）前方に配置させ、ミッションケース（２２）両側に駆動スプロケット（２３）を介して左右走行クローラ（２）を張架させると共に、エンジン（２１）の出力プーリ（２４）とミッションケース（２２）の入力プーリ（２５）の間に走行テンションローラクラッチ（２６）を介して走行ベルト（２７）を張設させ、走行駆動力を走行ベルト（２７）によってミッションケース（２２）に伝えるもので、機台（３）に立設させる支柱（２８）を介してテンションバネ（２９）を張設させ、該バネ（２９）によってクラッチ（２６）をベルト（２７）に弾圧して緊張させるように構成している。 Further, as shown in FIGS. 4, 5, and 6, a transmission case (22) fixed to the front of the machine base (3) is disposed in front of the engine (21), and drive sprockets (23) are provided on both sides of the transmission case (22). The left and right traveling crawlers (2) are stretched through the transmission pulley (24) and between the output pulley (24) of the engine (21) and the input pulley (25) of the transmission case (22) via a traveling tension roller clutch (26). The traveling belt (27) is stretched, and the traveling driving force is transmitted to the transmission case (22) by the traveling belt (27). The tension spring (29) is provided via a column (28) that is erected on the machine base (3). ) Is stretched, and the clutch (26) is elastically pressed against the belt (27) by the spring (29) to be tensioned.

　また、刈取部（８）を支持させる左右架台（３０）（３１）を機台（３）の前部上面に固設させ、昇降支点筒軸（１２）左端の水平支点軸（３２）を左架台（３０）に回転自在に軸支させ、前記筒軸（１２）右端部を右架台（３１）に着脱自在に嵌合させると共に、刈取駆動軸（３３）を内挿させるメインビーム（３４）、並びに搬送駆動軸（３５）を内挿させる搬送支持パイプ（３６）を介して刈取部（８）を前記筒軸（１２）に支持させ、前記筒軸（１２）を中心に刈取部（８）を昇降させる一方、前記支点軸（３２）を中心に刈取部（８）を略水平に回転させ、刈取部（８）を機体左側方に水平回転させて脱穀部（４）前側並びに運転台（１８）左側を開放して各部のメンテナンス等を行うもので、前記筒軸（１２）の右側端に刈取入力プーリ（３７）を設け、走行変速と同調するミッションケース（２２）の刈取プーリ（３８）と前記入力プーリ（３７）の間に刈取テンションローラクラッチ（３９）を介して刈取ベルト（４０）を張設させ、該ベルト（４０）を介して刈取部（８）各部を駆動するように構成している。 Also, the left and right mounts (30) and (31) for supporting the mowing part (8) are fixed on the front upper surface of the machine base (3), and the horizontal fulcrum shaft (32) at the left end of the lifting / lowering fulcrum cylinder shaft (12) is moved to the left. A main beam (34) rotatably supported on a gantry (30), a right end of the cylindrical shaft (12) is detachably fitted to a right gantry (31), and a cutting drive shaft (33) is inserted therein. The cutting unit (8) is supported by the cylindrical shaft (12) via a transfer support pipe (36) into which the transfer drive shaft (35) is inserted, and the cutting unit (8) is centered on the cylindrical shaft (12). ) Is raised and lowered, while the reaping unit (8) is rotated substantially horizontally about the fulcrum shaft (32), and the reaping unit (8) is horizontally rotated to the left side of the machine body so that the threshing unit (4) front side and the cab are rotated. (18) The left side is opened to perform maintenance or the like of each part, and the right side of the cylindrical shaft (12) is cut off. A force pulley (37) is provided, and a cutting belt (40) is connected between a cutting pulley (38) of the transmission case (22) synchronized with the traveling speed and the input pulley (37) via a cutting tension roller clutch (39). The mowing unit (8) is configured to be stretched and driven by the belt (40).

　上記から明らかなように、刈取部（８）を備え、刈取部（８）を側方移動自在に支持する支点軸（３２）を設けるコンバインにおいて、刈取部（８）を軸体である筒軸（１２）に支持させ、筒軸（１２）を中心に刈取部（８）を昇降させる一方、前記支点軸（３２）回りに刈取部（８）を側方に回転させて脱穀部（４）前側並びに運転台（１８）側部を開放するもので、例えば前記軸体（１２）一側を支点軸（３２）に支持させて刈取部（８）を側方に回動させることにより、軸体（１２）などの刈取部（８）の基部構造の重量軽減、並びに高所での移動による他の部品との干渉防止、並びに側方回動させる刈取部（８）の持上げ構造の簡略化などを容易に行え、刈取部（８）の支持構造の簡略化並びに側方への回動操作など取扱い作業性の向上などを図る。 As is apparent from the above description, in a combine provided with the reaping portion (8) and the fulcrum shaft (32) for supporting the reaping portion (8) movably laterally, the cutting portion (8) is a cylindrical shaft as a shaft. The cutting unit (8) is raised and lowered about the cylindrical shaft (12) while the cutting unit (8) is rotated sideways around the fulcrum shaft (32) to threshing unit (4). The front side and the side of the driver's cab (18) are opened, and, for example, one side of the shaft (12) is supported by a fulcrum shaft (32), and the reaping portion (8) is turned to the side, so that the shaft is rotated. Weight reduction of the base structure of the mowing portion (8) such as the body (12), prevention of interference with other parts due to movement at a high place, and simplification of the lifting structure of the mowing portion (8) which is rotated sideways. Easiness of handling, such as simplification of the support structure of the mowing part (8) and lateral turning operation Achieve such improvement.

　さらに、前記筒軸（１２）後方の機台（３）上に架台（４１）（４１）を介して軸受筒（４２）を固設させ、該筒（４２）右側端に脱穀入力プーリ（４３）を設け、前記エンジン（２１）の出力プーリ（２４）と脱穀入力プーリ（４３）の間に脱穀テンションローラクラッチ（４４）を介して脱穀ベルト（４５）を張設させ、該ベルト（４５）を介して脱穀部（４）各部を駆動するもので、エンジン（２１）左側で前方に走行ベルト（２７）を、後方に脱穀ベルト（４５）を張架させ、ミッションケース（２２）左側と走行ベルト（２７）の間に刈取プーリ（３８）を配置させると共に、出力プーリ（２４）左側に右架台（３１）を近接させて配設させ、走行ベルト（２７）に昇降支点筒軸（１２）右側を平面視で交叉させている。 Further, a bearing cylinder (42) is fixed to the machine base (3) behind the cylinder shaft (12) via mounts (41) and (41), and a threshing input pulley (43) is provided at the right end of the cylinder (42). ), And a threshing belt (45) is stretched between an output pulley (24) of the engine (21) and a threshing input pulley (43) via a threshing tension roller clutch (44). The threshing unit (4) is driven through the unit. The running belt (27) is stretched forward on the left side of the engine (21) and the threshing belt (45) is stretched on the rear side. A cutting pulley (38) is arranged between the belts (27), and a right mount (31) is arranged close to the left side of the output pulley (24). The right side is crossed in plan view.

　上記のように、エンジン（２１）からミッションケース（２２）に走行駆動力を伝える走行ベルト（２７）と、ミッションケース（２２）から刈取部（８）に刈取駆動力を伝える刈取ベルト（４０）を備えると共に、脱穀部（４）前側の機台（３）上に架台（３０）（３１）を介して刈取１軸ケースである昇降支点筒軸（１２）を設け、昇降支点筒軸（１２）の右側に設ける刈取入力プーリ（３７）から刈取２軸ケースであるメインビーム（３４）を介して刈取部（８）各部に駆動力を伝えるコンバインにおいて、エンジン（２１）の前方にミッションケース（２２）を配置させてこれらの左側に前記走行ベルト（２７）を張設させ、前記ミッションケース（２２）との間に刈取ベルト（４０）を張設させる刈取入力プーリ（３７）を走行ベルト（２７）よりも平面視で右側に設ける。そして、エンジン（２１）とミッションケース（２２）を前後方向の直線上に配設させ、また走行ベルト（２７）を挾んでミッションケース（２２）と反対側にメインビーム（３４）を配設させ、エンジン（２１）及びミッションケース（２２）を機体中央寄りに設ける構造でミッションケース（２２）よりも後方に昇降支点筒軸（１２）を設置させ、機体の左右バランス及び前後バランスを向上させる。 As described above, the traveling belt (27) transmitting the traveling driving force from the engine (21) to the transmission case (22), and the cutting belt (40) transmitting the cutting driving force from the transmission case (22) to the cutting unit (8). And a lifting / lowering fulcrum cylinder shaft (12), which is a single-shaft harvesting case, is provided on a machine stand (3) in front of the threshing unit (4) via a gantry (30) (31). ), On the right side of the harvesting input pulley (37), which transmits driving force to each part of the mowing part (8) via the main beam (34), which is a two-shaft mowing case. 22), the traveling belt (27) is stretched on the left side thereof, and the cutting input pulley (37) for stretching the cutting belt (40) between the transmission case and the transmission case (22) is moved. Provided on the right side in plan view than the belt (27). Then, the engine (21) and the transmission case (22) are disposed on a straight line in the front-rear direction, and the main beam (34) is disposed on the opposite side of the transmission case (22) across the traveling belt (27). , An engine (21) and a transmission case (22) are provided near the center of the fuselage, and an elevating fulcrum cylindrical shaft (12) is installed behind the transmission case (22) to improve the left-right balance and the front-rear balance of the body.

　さらに、図６、図７、図８に示す如く、エンジン（２１）左側面にベルト押え基板（４６）を固設させ、該基板（４６）に下ブラケット（４７）を固定させ、出力プーリ（２４）前側下部の走行ベルト（２７）を支持するＵ字形下固定ベルト押え（４８）を下ブラケット（４７）に設けると共に、エンジン（２１）左側でベルト（２７）（４５）に略平行で前後に細長い水平フレーム（４９）を前記基台（４６）に固設させ、水平フレーム（４９）に上ブラケット（５０）を一体固定し、出力プーリ（２４）前側上部の走行ベルト（２７）を支持する丸棒形の上固定ベルト押え（５１）と、出力プーリ（２４）後側上部の脱穀ベルト（４５）を支持する円板（５２）付きの丸棒形固定ベルト押え（５３）を、前記上ブラケット（５０）に設けるもので、上下固定ベルト押え（４８）（５１）によって走行ベルト（２７）の波動（おどり）を制限すると共に、円板（５２）と固定ベルト押え（５３）によって脱穀ベルト（４５）の上側と左側を囲むように構成している。 Further, as shown in FIGS. 6, 7 and 8, a belt holding board (46) is fixed to the left side of the engine (21), and a lower bracket (47) is fixed to the board (46). 24) A U-shaped lower fixed belt retainer (48) for supporting the front lower running belt (27) is provided on the lower bracket (47), and the left side of the engine (21) is substantially parallel to the belts (27) and (45). An elongated horizontal frame (49) is fixedly mounted on the base (46), the upper bracket (50) is integrally fixed to the horizontal frame (49), and the traveling belt (27) on the upper front side of the output pulley (24) is supported. And a round bar-shaped fixed belt presser (53) with a disk (52) supporting a threshing belt (45) on the rear upper side of the output pulley (24). Set on the upper bracket (50) The upper and lower fixed belt retainers (48) and (51) limit the waving (jerking) of the traveling belt (27), and the disk (52) and the fixed belt retainer (53) above the threshing belt (45). And the left side.

　また、前記水平フレーム（４９）の軸受（４９ａ）に支点軸（５４）を介してベルト押え体（５５）基端を前後に回動自在に取付け、出力プーリ（２４）後側及び下側の走行ベルト（２７）がプーリ（２４）から外れるのを防ぐ板状の走行ベルト押え（５６）と、出力プーリ（２４）後側下部の脱穀ベルト（４５）がプーリ（２４）から外れるのを防ぐ丸棒形及び板状の脱穀ベルト押え（５７）（５８）を、前記ベルト押え体（５５）先端に一体固定させると共に、ベルト押え体（５５）の取付アーム（５９）と前記水平フレーム（４９）前端を右架台（３１）前方の開放空間に延設させ、水平フレーム（４９）に固定アーム（５９）をボルト（６０）によって着脱自在に固定させ、水平フレーム（４９）を介して機体側にベルト押え体（５５）を着脱自在に連結固定させるもので、前記ボルト（６０）の着脱により、前記ベルト（２７）（４５）に近接させて外れるのを防ぐ作用位置と、前記ベルト（２７）（４５）から離反させて交換等を可能にする非作用位置に、ベルト押え体（５５）を回動させると共に、固定ベルト押え（４８）（５１）のベルト（２７）波動防止によって走行ベルト（２７）に走行ベルト押え（５６）を近接配置させてベルト（２７）とベルト押え（５６）間の隙間を小さくするように構成している。 Further, the base end of the belt presser (55) is attached to the bearing (49a) of the horizontal frame (49) via a fulcrum shaft (54) so as to be rotatable back and forth, and the rear and lower sides of the output pulley (24) are provided. A plate-like traveling belt retainer (56) for preventing the traveling belt (27) from coming off the pulley (24) and a threshing belt (45) on the lower rear side of the output pulley (24) from coming off the pulley (24). The round bar-shaped and plate-shaped threshing belt retainers (57) and (58) are integrally fixed to the tip of the belt retainer (55), and the mounting arm (59) of the belt retainer (55) and the horizontal frame (49). ) The front end is extended into the open space in front of the right frame (31), and the fixing arm (59) is detachably fixed to the horizontal frame (49) by bolts (60). To the belt retainer ( 5) is detachably connected to and fixed to the belt (27) (45), and is provided with an action position for preventing the belt (27) (45) from coming off in close proximity to the belt (27) (45) by attaching and detaching the bolt (60). The belt presser (55) is rotated to a non-operating position where it can be separated for replacement or the like, and the belt (27) of the fixed belt pressers (48) and (51) is prevented from waving to run on the running belt (27). The belt presser (56) is arranged in close proximity to reduce the gap between the belt (27) and the belt presser (56).

　さらに、図５、図６、図９に示す如く、ミッションケース（２２）の一部を突出させて入力プーリ（２５）の軸受部（２２ａ）を形成し、入力プーリ（２５）と刈取プーリ（３８）を側面視で重合させ、刈取プーリ（３８）前側と軸受部（２２ａ）を近接させて該部（２２ａ）をベルト押えとして兼用すると共に、走行テンションローラクラッチ（２６）を支持するテンションアーム（６１）の支点軸（６２）を、軸受部（２２ａ）に固設するブラケット（６３）の軸受筒（６４）に軸支させ、刈取プーリ（３８）後側上部の刈取ベルト（４０）に前記支点軸（６２）を近接配置させてベルト押えとして兼用し、ミッションケース（２２）周辺を有効利用して刈取ベルト（４０）をコンパクトに配設させるもので、刈取プーリ（３８）後側下部の刈取ベルト（４０）を支持する刈取ベルト押え（６５）をミッションケース（２２）側面にボルト（６６）止め固定させ、刈取ベルト押え（６５）を脱着して刈取ベルト（４０）の取外交換を行うように構成している。 Further, as shown in FIGS. 5, 6, and 9, a part of the transmission case (22) is projected to form a bearing portion (22a) of the input pulley (25), and the input pulley (25) and the cutting pulley ( 38) is overlapped in a side view, and the front side of the cutting pulley (38) and the bearing portion (22a) are brought close to each other to use the portion (22a) as a belt retainer and to support the traveling tension roller clutch (26). The fulcrum shaft (62) of (61) is supported by a bearing cylinder (64) of a bracket (63) fixed to the bearing portion (22a), and is attached to a cutting belt (40) on the rear upper portion of the cutting pulley (38). The fulcrum shaft (62) is disposed close to the buckling pulley (38) so that the reaping belt (40) can be compactly disposed by effectively utilizing the periphery of the transmission case (22). The reaping belt retainer (65) supporting the reaping belt (40) is fixed to the side of the transmission case (22) by bolts (66), and the reaping belt retainer (65) is detached to remove the reaping belt (40). It is configured to be replaced.

　上記構成並びに図１のように、ミッションケース（２２）に走行駆動力を伝える走行ベルト（２７）と、刈取部（８）に刈取駆動力を伝える刈取ベルト（４０）を備えると共に、刈取部（８）を水平回転自在に支持する水平支点軸（３２）を設けるコンバインにおいて、平面視でミッションケース（２２）と走行ベルト（２７）の間に刈取ベルト（４０）を配設させると共に、刈取部（８）最右側に位置する刈取ベルト（４０）張設用刈取入力プーリ（３７）前方側で該プーリ（３７）と略同一高さに走行ベルト（２７）のテンションバネ（２９）を設け、水平支点軸（３２）を中心とする刈取入力プーリ（３７）の水平回転軌跡（６７）の外側に近接させて前記テンションバネ（２９）を設けるもので、前記テンションバネ（２９）の上端側を機体右側方向に延設させ、右方向に傾斜させてテンションバネ（２９）を張設させ、刈取入力プーリ（３７）の水平回転軌跡（６７）の接線と略平行で該接線に接近させてテンションバネ（２９）を配置させ、刈取ベルト（４０）に対しテンションバネ（２９）を平面視で斜交させるように構成している。 As shown in FIG. 1, the traveling belt (27) for transmitting the traveling driving force to the transmission case (22) and the cutting belt (40) for transmitting the cutting driving force to the cutting unit (8) are provided. 8) In a combine provided with a horizontal fulcrum shaft (32) for rotatably supporting the cutting belt (8), a cutting belt (40) is disposed between the transmission case (22) and the traveling belt (27) in a plan view, and a cutting part is also provided. (8) The tensioning spring (29) of the traveling belt (27) is provided at the same height as the pulley (37) in front of the cutting input pulley (37) for tensioning the cutting belt (40) located on the rightmost side, The tension spring (29) is provided close to the outside of the horizontal rotation locus (67) of the cutting input pulley (37) about the horizontal fulcrum shaft (32). The tensioning spring (29) is extended in such a manner as to extend to the right side of the machine body and inclined rightward to approach the tangent line substantially parallel to the tangent line of the horizontal rotation locus (67) of the cutting input pulley (37). The tension spring (29) is arranged so that the tension spring (29) is oblique to the cutting belt (40) in plan view.

　さらに、図１０、図１１に示す如く、一対の略平行な固定板（６８）（６８）並びに一対の略平行な可動板（６９）（６９）で形成する刈取昇降ブラケット（７０）を備え、前記メインビーム（３４）中間の受台（７１）に固定板（６８）を一体固定させ、固定板（６８）及び可動板（６９）の傾斜上端側を固定ピン（７２）によって回転自在に連結させると共に、前記トラックフレーム（１）に支軸（７３）を介して昇降シリンダ（１１）を連結させ、該シリンダ（１１）のピストンロッド（７４）先端を可動板（６９）中間部にピン（７５）を介して連結させ、可動板（６９）の開孔（７６）を介してピン（７５）をピストンロッド（７４）に着脱自在に貫挿させ、可動板（６９）にピン（７５）をボルト（７７）止め固定させる一方、固定板（６８）及び可動板（６９）の傾斜下端側の開孔（７８）（７９）にピン（８０）を着脱自在に貫挿させ、固定板（６８）に前記ピン（８０）をボルト（８１）止め固定させるもので、図１１の如く、固定板（６８）と可動板（６９）を千鳥状に交互に配列させ、メインビーム（３４）の右側下面にブラケット（７０）を設け、メインビーム（３４）に対して昇降シリンダ（１１）を機体右寄りに配設し、刈取部（８）重心位置を通過する前後方向中心線上に昇降シリンダ（１１）を取付け、平面視でメインビーム（３４）と刈取入力プーリ（３７）の間に昇降シリンダ（１１）を位置させ、刈取ベルト（４０）に対してメインビーム（３４）を離反させ、かつ昇降シリンダ（１１）によって刈取部（８）重心位置を支えるように構成している。 Further, as shown in FIGS. 10 and 11, a mowing lifting bracket (70) formed by a pair of substantially parallel fixed plates (68) (68) and a pair of substantially parallel movable plates (69) (69) is provided. A fixed plate (68) is integrally fixed to a receiving base (71) in the middle of the main beam (34), and the upper ends of the fixed plate (68) and the movable plate (69) are rotatably connected by fixed pins (72). At the same time, an elevating cylinder (11) is connected to the track frame (1) via a support shaft (73), and a tip of a piston rod (74) of the cylinder (11) is pinned to an intermediate portion of the movable plate (69). 75), the pin (75) is removably inserted into the piston rod (74) through the opening (76) of the movable plate (69), and the pin (75) is inserted into the movable plate (69). The bolt (77) A pin (80) is removably inserted into the opening (78) (79) on the inclined lower end side of the fixed plate (68) and the movable plate (69), and the pin (80) is bolted to the fixed plate (68). (81) Stop and fix, as shown in FIG. 11, fixed plates (68) and movable plates (69) are alternately arranged in a staggered manner, and a bracket (70) is provided on the lower surface on the right side of the main beam (34). The lifting cylinder (11) is disposed to the right of the fuselage with respect to the main beam (34), and the lifting cylinder (11) is mounted on the center line in the front-rear direction passing through the position of the center of gravity of the reaper (8). The lifting cylinder (11) is positioned between the cutting input pulley (37) and the cutting input pulley (37), the main beam (34) is separated from the cutting belt (40), and the cutting unit (8) is moved by the lifting cylinder (11). Structure to support the center of gravity It is.

刈取部の昇降支点筒軸部の平面図。The top view of the raising / lowering fulcrum cylinder shaft part of a cutting part. 全体の側面図。FIG. 同平面図。FIG. エンジン出力部の側面図。The side view of an engine output part. 同平面説明図。FIG. 図４の平面図。The top view of FIG. 図４の拡大図。The enlarged view of FIG. エンジン出力プーリ部の背面図。The rear view of an engine output pulley part. ミッションケース入力プーリ部の正面図。FIG. 4 is a front view of a mission case input pulley. 昇降シリンダ部の側面図。The side view of a raising / lowering cylinder part. 昇降ブラケット部の背面図。The rear view of a raising / lowering bracket part.

符号の説明Explanation of reference numerals

　　　（４）　　脱穀部
　　　（８）　　刈取部
　　　（１２）　筒軸（軸体）
　　　（１８）　運転台
　　　（３２）　支点軸 (4) Threshing unit (8) Cutting unit (12) Tube shaft (shaft)
(18) Driver's cab (32) Support axis

Claims (1)

　刈取部（８）を備え、刈取部（８）を側方移動自在に支持する支点軸（３２）を設けるコンバインにおいて、刈取部（８）を軸体（１２）に支持させ、軸体（１２）を中心に刈取部（８）を昇降させる一方、前記支点軸（３２）回りに刈取部（８）を側方に回転させて脱穀部（４）前側並びに運転台（１８）側部を開放することを特徴とするコンバイン。 In a combine having a reaping portion (8) and a fulcrum shaft (32) for supporting the reaping portion (8) movably laterally, the reaping portion (8) is supported by the shaft (12), ), The cutting unit (8) is raised and lowered, and the cutting unit (8) is rotated sideways around the fulcrum shaft (32) to open the front of the threshing unit (4) and the side of the cab (18). A combine characterized in that:

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