JP3806451B2

JP3806451B2 - Combine

Info

Publication number: JP3806451B2
Application number: JP05805494A
Authority: JP
Inventors: 高茂實日
Original assignee: Yanmar Agricultural Equipment Co Ltd
Current assignee: Yanmar Agricultural Equipment Co Ltd
Priority date: 1994-03-02
Filing date: 1994-03-02
Publication date: 2006-08-09
Anticipated expiration: 2021-08-09
Also published as: JPH07236339A

Description

【０００１】
【産業上の利用分野】
本発明は穀稈を連続的に刈取って脱穀するコンバインに関する。
【０００２】
【従来の技術】
従来、実開昭６３−７８５４４号公報に示す如く、刈取部の一側にキャビンを装設させる技術があった。
【０００３】
【発明が解決しようとする課題】
前記従来技術は、機体右側外方にキャビンを回動させるから、キャビン回動時、エンジン上側の開放部に作業者が容易に乗降し得ないと共に、キャビンを前方に回動する場合、キャビンが前方の刈取り引起しケース上部に衝突し易く、そのため刈取部をキャビンと反対側に移動させる必要があり、またキャビンの前方回動角度が制限される不具合があった。さらに、前記キャビン内部と下方のエンジン間の防音・防熱が容易に行えないと共に、キャビンの防振支持により、回動支点構造が複雑になり易く、しかもキャビンのロックが面倒になる等の問題があった。
【０００４】
【課題を解決するための手段】
然るに、本発明は、作業者が搭乗するキャビン（１８）を機台（３）の一側に装設させ、回動支点（３０）を中心に前記キャビン（１８）を前方に回動自在に取付けると共に、前記キャビン（１８）前面壁に凹部（３４）を形成し、キャビン（１８）を前方回動時に前面壁の凹部（３４）を刈取部（８）の引起しケース（３１）上端部に取付けた引起しゲート（３２）に対設させるコンバインにおいて、前記キャビン（１８）の前面下方の角隅部に凹部（３５）を形成し、引起しゲート（３２）の後面側に設けて穀稈を案内する稈ガイド板（３３）を前記の角隅部の凹部（３５）にキャビン（１８）前方回動時に入り込ませるように構成したもので、引起しケース上端部との当接を回避し乍らキャビンの前方回動角度を容易に大きく形成し得、キャビン前方回動時の作業性を容易に向上させ得ると共に、例えば刈取部をキャビンと反対側に移動させた後にキャビンの前方回動を可能にする等の面倒な操作を不要にしたものである。
【０００５】
【０００６】
【０００７】
【０００８】
【実施例】
以下、本発明の実施例を図面に基づいて詳述する。図１はキャビンの右側面図、図２は全体側面図、図３は同平面図であり、図中（１）は走行クローラ（２）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）上に架設する機台、（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）を備えるキャビン、（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。
【０００９】
また、図４乃至図６に示す如く、操向及び昇降用操作レバー（２２）をフロントコラム（２３）に設けると共に、走行主変速レバー（２４）、走行副変速レバー（２５）、刈取クラッチレバー（２６）及び脱穀クラッチレバー（２７）をサイドコラム（２８）に設けるもので、前記キャビン（１８）内部の前側及び左側に各コラム（２３）（２８）を配設させて操作部（１９）を構成している。
【００１０】
また、前記キャビン（１８）を機台（３）の右側に装設させ、キャビン（１８）右側面に作業者乗降用ドア（２９）を開閉自在に取付け、キャビン（１８）を前方下部の回動支点（３０）を中心にして前方に回動自在に設ける。また前記刈取部（８）の５条用引起しケース（３１）…上端に引起しゲート（３２）を取付け、穀稈を移送案内する稈ガイド板（３３）を前記ゲート（３２）後面側に設ける。そして、前記キャビン（１８）前面壁に凹部（３４）を形成し、キャビン（１８）を前方回動時に前面壁の凹部（３４）を刈取部（８）の引起しゲート（３２）に対設させると共に、前記キャビン（１８）の前面左側下方の角隅部に凹部（３５）を形成し、キャビン（１８）を前方回動時に刈部（８）の稈ガイド板（３３）を前記凹部（３５）に入り込ませるもので、引起しゲート（３２）との当接を回避し乍らキャビン（１８）の前方回動角度を容易に大きく形成でき、キャビン（１８）前方回動時の作業性を容易に向上させることができると共に、例えば刈取部（８）をキャビン（１８）と反対側に水平回転軸（３６）を中心にしてサイドオープン移動させた後にキャビン（１８）の前方回動を可能にする等の面倒な操作を不要にしたものである。
【００１１】
さらに、左右走行クローラ（２）（２）を駆動する走行ミッションケース（３７）を機台（３）前部に設け、エンジン（２１）の出力プーリ（３８）にベルト（３９）を介して連結させる入力プーリ（４０）と、刈取部（８）の各部を駆動する刈取駆動プーリ（４１）を、前記ミッションケース（３７）左側面に設けると共に、脱穀部（４）各部を駆動する脱穀入力プーリ（４２）を備え、テンションプーリ型脱穀クラッチ（４３）及びベルト（４４）を介して前記出力プーリ（３８）に脱穀入力プーリ（４２）を連結させる。
【００１２】
さらに、図７乃至図９に示す如く、左右の前支柱（４５）（４６）並びに左右の後支柱（４７）（４８）を機台（３）上に立設固定させ、前支柱（４５）（４６）上端に支点フレーム（４９）を横架させ、支点軸（５０）及び左右の前防振部材（５１）（５１）を備える回動支点（３０）を介して支点フレーム（４９）に前記キャビン（１８）の前側下面を連結させると共に、支点フレーム（４９）左側端と左側の後支柱（４７）に前後端をボルト止め固定させる台フレーム（５２）を備え、機台（３）に装設させるエンジン（２１）及びミッションケース（３７）の上側で前後方向に台フレーム（５２）を架設させ、前記台フレーム（５２）にキャビン（１８）を取付けたもので、キャビン（１８）の独立性を高めるユニット化を容易に行うことができ、キャビン（１８）の防音・防熱構造を容易に構成できると共に、エンジン（２１）の保守作業のためのキャビン（１８）回動を容易に行うことができるものである。
【００１３】
また、ボルト止め連結させるブラケット（５３）（５４）を介してミッションケース（３７）に台フレーム（５２）の前後長中間を連結させて互の強度を向上させると共に、前記エンジン（２１）の右側に冷却用ラジエータ（５５）を配設させ、右側の後支柱（４８）前側と機台（３）上面間にＬ形のラジエータフレーム（５６）を固定させ、該フレーム（５６）にラジエータ（５５）を取付けるもので、左右の後支柱（４７）（４８）間に平板形連結材（５７）を一体固定させ、支点フレーム（４９）とラジエータフレーム（５６）間に連結材（５８）を固定させることにより、台フレーム（５２）及びラジエータフレーム（５６）を平面視四角枠構造の一部として強固に構成できる。
【００１４】
また、後支柱（４８）とラジエータフレーム（５６）間にエアクリーナフレーム（５９）を一体固定させ、該フレーム（５９）にエンジン吸気用エアクリーナ（６０）を固設させ、ラジエータ（５５）上方にエアクリーナ（６０）を配置させると共に、前記台フレーム（５２）後端部及びエアクリーナフレーム（５９）に左右の後防振部材（６１）（６１）を設けるもので、エンジン（２１）よりも高位置の各フレーム（５２）（５９）間で右側寄りにエアクリーナ（６０）を配置させ、エアクリーナ（６０）のメンテナンスを容易に行える構成にしている。
【００１５】
また、左側の後防振部材（６１）よりも高い位置に右側の後防振部材（６１）を設け、キャビン（１８）の右側底面（６２）を高くして下方のエアクリーナ（６０）の取付スペースが確保できると共に、キャビン（１８）の左側底面（６３）を低くしてサイドコラム（２８）からの操作ワイヤ及び電気配線の取出が容易に行え、しかも運転席（２０）を載せるキャビン（１８）の中央底面（６４）を左右よりも低くして作業者座乗時の重心低下並びにキャビン（１８）底部剛性向上を図っている。
【００１６】
また、後防振部材（６１）（６１）に比べ、刈取部（８）と反対側の右側方に前防振部材（５１）（５１）を偏位させて設け、サイドコラム（２８）前方のキャビン（１８）左前角隅部の凹部（３５）を大きく形成できるように構成し、キャビン（１８）の前方回動角度を大きくし、かつキャビン（１８）前面と刈取部の干渉を防止している。
【００１７】
さらに、図１０、図１１に示す如く、前記支点フレーム（４９）にボルト止め固定する前防振部材（５１）の円筒形ケース部に円筒形防振ゴム（６５）を介して支点軸（５０）端部を回転自在に軸支させると共に、支点軸（５０）に支点ブラケット（６６）…を介してキャビン（１８）の前底板（６７）を連結させ、回動支点（３０）を前防振部材（５１）で兼用し、キャビン（１８）の回動支持と防振支持を各別に行う構造に比べて部品数を少なくして簡単な構成にできると共に、左右の前防振部材（５１）（５１）の幅内でサイドコラム（２８）よりも右側に前記ブラケット（６６）を配置させ、サイドコラム（２８）の前部下側に空間（６８）を確保して刈取部（８）または機台（３）側との干渉を防止している。また、支点軸（５０）の軸芯方向に融通性があるから、固定形の防振構造に比べてねじれ発生を妨げると共に、図７などに示す如く、キャビン（１８）前端よりも所定間隔だけ後方に回動支点（３０）を配置させるから、回動支点（３０）の防振効果の確保を容易に行える。
【００１８】
さらに、図１２、図１３に示す如く、前記各フレーム（５２）（５９）に防振ブラケット（６９）（６９）を一体固定させ、該ブラケット（６９）（６９）に後防振部材（６１）（６１）を取付けるもので、ブラケット（６９）を上下から挾む二割り形の防振ゴム（７０）（７１）と、座板（７２）とナット（７３）間に防振ゴム（７０）（７１）を締結するボルト（７４）を、後防振部材（６１）に備えるもので、前記ボルト（７４）の頭部（７５）に係止ピン（７６）を植設させ、キャビン（１８）を機台（３）側に係脱自在に連結させるロック部材（７７）を前記ボルト（７４）及びピン（７６）によって形成する。そして、キャビン（１８）後部を支持する後防振部材（６１）にロック部材（７７）を設け、防振部材（６１）の防振支持位置とロック部材（７７）の係合位置を一致させてロック部材（７７）の係合を確実に行わせることができ、防振作用及び係合作用が互に損なわれるのを容易に防止できるものである。
【００１９】
また、前防振部材（５１）の防振ゴム（６５）のバネ定数に比べ、後防振部材（６１）の防振ゴム（７０）（７１）のバネ定数を大きく形成したもので、回動支点（３０）となる前方の防振ゴム（６５）は、キャビン（１８）前方回動によって荷重が加わっても、たわみ量が少なく、安定したキャビン（１８）の前方回動が行えると共に、キャビン（１８）の防振支持は、前方側では機台（３）等のフレームの可撓性変形がバネ作用となり、前後の防振支持バランスを良好に得られる。
【００２０】
また、キャビン（１８）の底面（６２）（６３）下面側に上載フレーム（７８）（７８）を一体固定させ、座板（７２）上面に前記フレーム（７８）下面を当接させ、ボルト（７４）の頭部（７５）を前記フレーム（７８）上面側に突出させると共に、前記フレーム（７８）上面に支点ブラケット（７９）を立設させ、該ブラケット（７９）に軸（８０）を介してフック（８１）を回転自在に取付ける。そして、キャビン（１８）後面に軸（８２）を介して基板（８３）を回転自在に設け、基板（８３）に解除レバー（８４）を一体固定させると共に、前記基板（８３）を左右の各フック（８１）（８１）にロッド（８５）（８５）を介して連結させ、前記レバー（８４）の回転操作によってフック（８１）を揺動させ、前記係止ピン（７６）にフック（８１）を係脱させる。また、係止ピン（７６）にフック（８１）を係合させるとき、フック（８１）によってボルト（７４）を上方に引上げ、座板（７２）を介して上載フレーム（７８）を防振ゴム（７０）（７１）側に圧着させ、防振ゴム（７０）（７１）のバネ力によって係止ピン（７６）をフック（８１）に係合支持させ、機械振動などによってフック（８１）が離脱するのを防止し、安全性を向上させ、しかもフック（８１）のロック支持用バネなどが不要であると共に、図１２のように左右のロッド（８５）（８５）及びフック（８１）（８１）の引張り方向が逆であるから、フック（８１）のロック位置での支持を確実に行え、しかもフック（８１）またはピン（７７）が係合時に逃げる動作を防いで操作性を向上させる。
【００２１】
また、図１の如く、前記解除レバー（８４）をキャビン（１８）後面外側に取付け、キャビン（１８）の外部でレバー（８４）操作を行うことにより、安全性を向上させる。なお、前記レバー（８４）をキャビン（１８）内部の運転席（２０）後側に取付けることも行え、運転席（２０）の作業者が後方に振り換えるだけでレバー（８４）のロック解除操作またはロック確認が行える。
【００２２】
さらに、図１２、図１４に示す如く、前記レバー（８４）がピン（７７）とフック（８１）の係合位置に支持されているか否かを検出するスイッチ（８６）を設け、前記レバー（８４）がピン（７７）とフック（８１）の係合位置以外に支持されていて、フック（８１）がピン（７７）から離脱しているとき、前記スイッチ（８６）出力に基づきコントローラ（８７）を介してエンジン停止アクチュエータ（８８）を作動させ、エンジン（２１）を停止維持し、ピン（７７）とフック（８１）が外れているキャビン（１８）ロック解除状態での走行作業を防ぎ、安全性を向上させている。
【００２３】
【発明の効果】
以上実施例から明らかなように本発明は、作業者が搭乗するキャビン（１８）を機台（３）の一側に装設させ、回動支点（３０）を中心に前記キャビン（１８）を前方に回動自在に取付けると共に、前記キャビン（１８）前面壁に凹部（３４）を形成し、キャビン（１８）を前方回動時に前面壁の凹部（３４）を刈取部（８）の引起しケース（３１）上端部に取付けた引起しゲート（３２）に対設させるコンバインにおいて、前記キャビン（１８）の前面下方の角隅部に凹部（３５）を形成し、引起しゲート（３２）の後面側に設けて穀稈を案内する稈ガイド板（３３）を前記の角隅部の凹部（３５）にキャビン（１８）前方回動時に入り込ませるように構成したもので、引起しケース（３１）上端部との当接を回避し乍らキャビン（１８）の前方回動角度を容易に大きく形成でき、キャビン（１８）前方回動時の作業性を容易に向上させることができると共に、例えば刈取部（８）をキャビン（１８）と反対側に水平回転軸（３６）を中心にしてサイドオープン移動させた後にキャビン（１８）の前方回動を可能にする等の面倒な操作を不要にしたものである。
【図面の簡単な説明】
【図１】キャビンの右側面図。
【図２】全体の側面図。
【図３】同平面図。
【図４】キャビンの正面図。
【図５】同平面図。
【図６】運転操作部の側面図。
【図７】台フレーム部の側面図。
【図８】同平面図。
【図９】同正面図。
【図１０】前防振部材部の正面図。
【図１１】同正面図。
【図１２】後防振部材部の正面図。
【図１３】同拡大図。
【図１４】エンジン停止制御回路図。
【符号の説明】
（８）刈取部
（１８）キャビン
（２１）エンジン
（３０）回動支点
（３１）引起しケース
（３４）凹部
（３７）ミッションケース
（５１）前防振部材
（５２）台フレーム
（６１）後防振部材
（７７）ロック部材[0001]
[Industrial application fields]
The present invention relates to a combine that continuously harvests and thresh cereals.
[0002]
[Prior art]
Conventionally, as shown in Japanese Utility Model Laid-Open No. 63-78544, there has been a technique for installing a cabin on one side of a cutting part.
[0003]
[Problems to be solved by the invention]
In the prior art, the cabin is rotated outwardly on the right side of the fuselage. Therefore, when the cabin is rotated, the operator cannot easily get on and off the opening on the upper side of the engine. There is a problem in that the front cutting is easily raised and collides with the upper part of the case, so that it is necessary to move the cutting part to the side opposite to the cabin, and the forward rotation angle of the cabin is limited. Furthermore, the soundproofing and heat insulation between the cabin interior and the engine below cannot be easily performed, and the pivot support structure is easily complicated by the vibration isolation support of the cabin, and the cabin lock becomes troublesome. there were.
[0004]
[Means for Solving the Problems]
However, according to the present invention, the cabin (18) on which the operator is boarded is installed on one side of the machine base (3) , and the cabin (18) can be rotated forward about the rotation fulcrum (30). A recess (34) is formed in the front wall of the cabin (18), and the recess (34) of the front wall is raised in the cutting part (8) when the cabin (18) is rotated forward. In the combine to be opposed to the raising gate (32) attached to the front, the concave portion (35) is formed at the corner corner below the front surface of the cabin (18), and is provided on the rear side of the raising gate (32). The guide plate (33) that guides the kite is configured to enter the recess (35) at the corner corner when the cabin (18) is rotated forward, so that it can be lifted to avoid contact with the upper end of the case. However, the forward rotation angle of the cabin can be easily increased. Workability at the time of forward rotation of the cabin can be easily improved and, for example, troublesome operations such as enabling the forward rotation of the cabin after moving the cutting part to the opposite side of the cabin is unnecessary. .
[0005]
[0006]
[0007]
[0008]
【Example】
Embodiments of the present invention will be described below in detail with reference to the drawings. 1 is a right side view of the cabin, FIG. 2 is an overall side view, and FIG. 3 is a plan view thereof. In FIG. 1, (1) is a track frame on which a traveling crawler (2) is installed, and (3) is the track frame. (1) Machine base laid on top, (4) threshing section with feed chain (5) stretched to the left and built in handling cylinder (6) and processing cylinder (7), (8) cutting blade (9) A cutting part provided with the grain feeder mechanism (10), (11) is a hydraulic cylinder that raises and lowers the cutting part (8) via the lifting fulcrum cylinder shaft (12), and (13) is a waste chain ( 14) A waste disposal unit that faces the end, (15) a grain tank that carries the grain from the threshing unit (4) through the milling cylinder (16), and (17) a grain in the tank (15) A discharge auger for carrying the grains out of the machine, (18) a cabin having a driving operation part (19) and a driver seat (20), (21 Is an engine provided in the driver's seat (20) downward, and configured to threshing continuously harvests culms.
[0009]
Further, as shown in FIGS. 4 to 6, a steering and elevating operation lever (22) is provided in the front column (23), and a traveling main transmission lever (24), a traveling auxiliary transmission lever (25), and a cutting clutch lever are provided. (26) and the threshing clutch lever (27) are provided on the side column (28), and the columns (23) and (28) are arranged on the front side and the left side inside the cabin (18) to operate the operation unit (19). Is configured.
[0010]
Further, the cabin (18) is installed on the right side of the machine base (3), and an operator entry / exit door (29) is attached to the right side surface of the cabin (18) so as to be freely opened and closed. It is provided so as to be rotatable forward about the moving fulcrum (30). Further, the five-case raising case (31) of the mowing part (8) is attached to the upper end and a gate (32) is attached, and a straw guide plate (33) for transporting and guiding the grains is provided on the rear side of the gate (32). Provide. Then, a recess (34) is formed in the front wall of the cabin (18), and when the cabin (18) is rotated forward, the recess (34) of the front wall is raised against the gate (32) of the cutting part (8). In addition, a recess (35) is formed in the lower left corner of the front surface of the cabin (18), and the reed guide plate (33) of the cutting portion (8) is moved to the recess (18) when the cabin (18) is rotated forward. 35), it is possible to easily increase the forward rotation angle of the cabin (18) while avoiding the contact with the raising gate (32), and the workability during the forward rotation of the cabin (18). For example, after the mowing part (8) is moved side-opening around the horizontal rotation axis (36) on the opposite side of the cabin (18), the cabin (18) is rotated forward. Eliminates troublesome operations such as enabling It is.
[0011]
Further, a traveling mission case (37) for driving the left and right traveling crawlers (2) and (2) is provided at the front of the machine base (3), and is connected to the output pulley (38) of the engine (21) via the belt (39). The pulverizing input pulley for driving the threshing part (4) and the input pulley (40) to be driven and the pulverization driving pulley (41) for driving each part of the reaping part (8) on the left side surface of the transmission case (37) (42), and a threshing input pulley (42) is connected to the output pulley (38) via a tension pulley type threshing clutch (43) and a belt (44).
[0012]
Further, as shown in FIGS. 7 to 9, the left and right front struts (45) and (46) and the left and right rear struts (47) and (48) are fixed upright on the machine base (3), and the front strut (45). (46) The fulcrum frame (49) is horizontally mounted on the upper end, and is attached to the fulcrum frame (49) via the pivot fulcrum (30) provided with the fulcrum shaft (50) and the left and right front vibration isolation members (51) (51). A base frame (52) for connecting the front lower surface of the cabin (18) and bolting the front and rear ends to the left end of the fulcrum frame (49) and the left rear column (47) is provided on the machine base (3). A base frame (52) is installed in the front-rear direction above the engine (21) and transmission case (37) to be installed, and a cabin (18) is attached to the base frame (52). Easy unitization to increase independence It can, with easily configure the soundproofing insulation structure of the cabin (18), cabin (18) for maintenance of the engine (21) in which rotation can be easily performed.
[0013]
Further, the middle of the longitudinal frame of the base frame (52) is coupled to the transmission case (37) via brackets (53) and (54) to be coupled with bolts to improve the mutual strength, and the right side of the engine (21). A radiator (55) for cooling is disposed on the left side, and an L-shaped radiator frame (56) is fixed between the front side of the right rear column (48) and the upper surface of the machine base (3), and the radiator (55) is fixed to the frame (56). ), The plate-shaped connecting material (57) is integrally fixed between the left and right rear struts (47) and (48), and the connecting material (58) is fixed between the fulcrum frame (49) and the radiator frame (56). By doing so, the base frame (52) and the radiator frame (56) can be firmly configured as a part of the square frame structure in plan view.
[0014]
Further, an air cleaner frame (59) is fixed integrally between the rear support column (48) and the radiator frame (56), an engine intake air cleaner (60) is fixed to the frame (59), and an air cleaner is disposed above the radiator (55). (60) is disposed, and the rear end of the base frame (52) and the air cleaner frame (59) are provided with left and right rear vibration isolation members (61) (61), which are positioned higher than the engine (21). An air cleaner (60) is disposed on the right side between the frames (52) and (59), so that the air cleaner (60) can be easily maintained.
[0015]
Further, the right rear vibration isolation member (61) is provided at a position higher than the left rear vibration isolation member (61), and the right bottom surface (62) of the cabin (18) is raised to attach the lower air cleaner (60). A space can be secured, and the left bottom surface (63) of the cabin (18) is lowered so that the operation wires and electrical wiring can be easily taken out from the side column (28), and the cabin (18) on which the driver's seat (20) is placed. ) Is lower than the left and right sides to reduce the center of gravity when the operator is seated and to improve the rigidity of the bottom of the cabin (18).
[0016]
Also, compared to the rear anti-vibration members (61) and (61), the front anti-vibration members (51) and (51) are provided on the right side opposite to the cutting part (8), and the front anti-vibration members (51) and (61) are disposed forward. The cabin (18) is configured so that the recess (35) in the left front corner can be formed larger, the front pivot angle of the cabin (18) is increased, and the front of the cabin (18) and the cutting part are prevented from interfering with each other. ing.
[0017]
Further, as shown in FIGS. 10 and 11, a fulcrum shaft (50) is attached to a cylindrical case portion of a front vibration isolation member (51) to be bolted and fixed to the fulcrum frame (49) via a cylindrical vibration isolation rubber (65). ) The end portion is pivotally supported, and the front bottom plate (67) of the cabin (18) is connected to the fulcrum shaft (50) via the fulcrum bracket (66). Compared to the structure in which the vibration member (51) is used for both the pivot support and the vibration isolation support of the cabin (18), the number of parts can be reduced and the structure can be simplified, and the left and right front vibration isolation members (51 ) (51), the bracket (66) is arranged on the right side of the side column (28), and a space (68) is secured below the front side of the side column (28) to obtain the cutting part (8) or Interference with the machine base (3) side is prevented. In addition, since there is flexibility in the axial direction of the fulcrum shaft (50), the twisting is prevented compared with the fixed type anti-vibration structure, and as shown in FIG. 7 and the like, a predetermined distance from the front end of the cabin (18). Since the rotation fulcrum (30) is arranged on the rear side, it is possible to easily secure the vibration isolation effect of the rotation fulcrum (30).
[0018]
Further, as shown in FIGS. 12 and 13, vibration-proof brackets (69) and (69) are integrally fixed to the respective frames (52) and (59), and rear vibration-proof members (61) are attached to the brackets (69) and (69). ) (61) is attached, and the split vibration isolating rubber (70) (71) holding the bracket (69) from above and below, and the anti-vibration rubber (70) between the seat plate (72) and the nut (73). ) (71) is provided with a bolt (74) in the rear vibration isolation member (61). A locking pin (76) is implanted in the head (75) of the bolt (74), and the cabin ( A lock member (77) for detachably connecting 18) to the machine base (3) side is formed by the bolt (74) and the pin (76). A lock member (77) is provided on the rear vibration isolation member (61) that supports the rear portion of the cabin (18), and the vibration isolation support position of the vibration isolation member (61) and the engagement position of the lock member (77) are matched. Thus, the locking member (77) can be reliably engaged, and the vibration-proofing action and the engaging action can be easily prevented from being impaired.
[0019]
Further, the spring constants of the anti-vibration rubbers (70) and (71) of the rear anti-vibration member (61) are made larger than the spring constant of the anti-vibration rubber (65) of the front anti-vibration member (51). The front anti-vibration rubber (65) serving as the moving fulcrum (30) has a small amount of deflection even when a load is applied by the forward rotation of the cabin (18), and can perform the stable forward rotation of the cabin (18). In the anti-vibration support of the cabin (18), the flexible deformation of the frame such as the machine base (3) becomes a spring action on the front side, and a good anti-vibration support balance in the front and rear can be obtained.
[0020]
Further, the upper frame (78) (78) is integrally fixed to the bottom surface (62) (63) lower surface side of the cabin (18), the lower surface of the frame (78) is brought into contact with the upper surface of the seat plate (72), and the bolt ( 74) the head (75) of the frame (78) is projected to the upper surface side, and a fulcrum bracket (79) is erected on the upper surface of the frame (78), and the bracket (79) is interposed via the shaft (80). The hook (81) is rotatably attached. A substrate (83) is rotatably provided on the rear surface of the cabin (18) via a shaft (82), and a release lever (84) is integrally fixed to the substrate (83), and the substrate (83) is attached to each of the left and right sides. It is connected to the hooks (81) and (81) via rods (85) and (85), and the hook (81) is swung by rotating the lever (84), and the hook (81) ). When the hook (81) is engaged with the locking pin (76), the bolt (74) is pulled up by the hook (81), and the upper frame (78) is damped through the seat plate (72). (70) (71) is pressure-bonded, and the locking pin (76) is engaged with and supported by the hook (81) by the spring force of the anti-vibration rubber (70) (71). This prevents the detachment, improves safety, and does not require a lock support spring for the hook (81). As shown in FIG. 12, the left and right rods (85) (85) and the hook (81) ( Since the pulling direction of 81) is reversed, the hook (81) can be reliably supported at the locked position, and the operability is improved by preventing the hook (81) or the pin (77) from escaping when engaged. .
[0021]
Further, as shown in FIG. 1, the release lever (84) is attached to the outside of the rear surface of the cabin (18), and the lever (84) is operated outside the cabin (18) to improve safety. The lever (84) can also be attached to the rear side of the driver seat (20) inside the cabin (18), and the unlocking operation of the lever (84) can be performed only by the operator of the driver seat (20) switching backwards. Or lock confirmation can be performed.
[0022]
Further, as shown in FIGS. 12 and 14, a switch (86) for detecting whether or not the lever (84) is supported at the engagement position of the pin (77) and the hook (81) is provided. 84) is supported at a position other than the engagement position of the pin (77) and the hook (81), and the hook (81) is detached from the pin (77), the controller (87) is based on the output of the switch (86). ) To actuate the engine stop actuator (88), keep the engine (21) stopped, and prevent the traveling work in the unlocked state of the cabin (18) in which the pin (77) and the hook (81) are disengaged, Improves safety.
[0023]
【The invention's effect】
As is clear from the above embodiments, the present invention is configured such that the cabin (18) on which the operator is boarded is installed on one side of the machine base (3) , and the cabin (18) is centered on the rotation fulcrum (30). The front wall of the cabin (18) is formed with a recess (34) so as to be pivotable forward, and when the cabin (18) is rotated forward, the recess (34) of the front wall is raised by the cutting part (8). In the combine to be mounted on the pull- up gate (32) attached to the upper end of the case (31), a recess (35) is formed in the corner corner below the front surface of the cabin (18), and the pull-up gate (32) A hook guide plate (33) that is provided on the rear surface side and guides the potatoes is configured to enter the recess (35) at the corner of the corner when the cabin (18) is rotated forward. ) Cabin (18) while avoiding contact with the upper end The forward rotation angle can be easily formed large, the workability at the time of forward rotation of the cabin (18) can be easily improved, and for example, the cutting part (8) is placed on the side opposite to the cabin (18) and the horizontal rotation shaft This eliminates troublesome operations such as enabling the cabin (18) to be rotated forward after the side-open movement about (36).
[Brief description of the drawings]
FIG. 1 is a right side view of a cabin.
FIG. 2 is an overall side view.
FIG. 3 is a plan view of the same.
FIG. 4 is a front view of the cabin.
FIG. 5 is a plan view of the same.
FIG. 6 is a side view of a driving operation unit.
FIG. 7 is a side view of a base frame part.
FIG. 8 is a plan view of the same.
FIG. 9 is a front view of the same.
FIG. 10 is a front view of a front vibration isolation member.
FIG. 11 is a front view of the same.
FIG. 12 is a front view of a rear vibration isolation member.
FIG. 13 is an enlarged view of the same.
FIG. 14 is an engine stop control circuit diagram.
[Explanation of symbols]
(8) Cutting part (18) Cabin (21) Engine (30) Rotating fulcrum (31) Pull-up case (34) Recessed part (37) Mission case (51) Front anti-vibration member (52) Base frame (61) Rear Anti-vibration member (77) Lock member

Claims

A cabin (18) on which an operator is boarded is installed on one side of the machine base (3) , and the cabin (18) is pivotably mounted forward about a pivot fulcrum (30). 18) A raising gate in which a recess (34) is formed in the front wall, and when the cabin (18) is rotated forward, the recess (34) in the front wall is raised in the cutting part (8) and attached to the upper end of the case (31). in combine to oppositely arranged to (32), said cabin (18) a recess (35) in the corners of the front lower, Pick culm guide for guiding the culms are provided on the rear surface side of the gate (32) The combine characterized by letting a board (33) enter into the recessed part (35) of the said corner | angular part at the time of forward rotation of a cabin (18) .