JPH0775435A - Threshed stems conveyer in combine harvester - Google Patents

Abstract

PURPOSE:To make the threshing load in the chamber uniform by feeding short- cut neck stems uniformly into the whole chamber to thresh the stems completely without stems remaining not threshed, when the all bodies of short-cut stems are fed into the threshing chamber. CONSTITUTION:The cereal stem conveyer H, which is set on the side of the threshing chamber A so that the conveyer may convey the stems to be threshed toward the back side of the chamber A, as it holds them, is composed of the rail 8b which is arranged opposing to the conveyer 8a and energized with a plurality of elastomers 18 toward the conveyer 8a, while the holding-force releaser K for releasing the holding force of the conveyer H allows the supporter 25 for the elastomers 18 to move so that the force strength becomes weaker as it goes forward from the chamber. Further, the releaser K allows the support 25 which is freely rotatable around the point on the back end side to make the energizing force of the elastomers 18 to the rail 8b weaker as it goes forward from the threshing chamber A.

Description

【発明の詳細な説明】Detailed Description of the Invention

【０００１】[0001]

【産業上の利用分野】本発明は、扱室の側方に設けられ
て、前記扱室にて扱き処理される脱穀穀稈を前記扱室の
後方側に向けて挟持状態で搬送する穀稈搬送手段が、穀
稈係止搬送作用部に対向して、穀稈搬送方向に並置され
た複数の弾性体にて前記穀稈係止搬送作用部側に付勢さ
れたレール部を配置して構成され、前記穀稈搬送手段の
穀稈挟持力を解除する挟持力解除手段が設けられたコン
バインの脱穀穀稈搬送装置に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a grain culvert which is provided on the side of a handling room and conveys threshed grain culms to be processed in the handling room in a sandwiched state toward the rear side of the handling room. Conveying means, facing the grain stalk locking and transporting action part, the rail part urged to the grain stalk locking and transporting action part side by a plurality of elastic bodies juxtaposed in the grain stalk transporting direction is arranged. The present invention relates to a combined grain threshing grain culm conveying device provided with a clamping force releasing means for releasing the grain culm clamping force of the grain culm conveying means.

【０００２】[0002]

【従来の技術】上記コンバインの脱穀穀稈搬送装置で
は、従来、例えば実開平２−１２３８３７号公報や実開
平４−１２４０３５号公報に示されるように、穀稈搬送
手段が、脱穀穀稈を係止搬送する穀稈係止搬送作用部
（フィードチェーン等）と、この穀稈係止搬送作用部に
対向して配置され、且つ穀稈搬送方向に並置された複数
の弾性体（バネ等）にて穀稈係止搬送作用部側に付勢さ
れたレール部等から構成され、その穀稈搬送経路の始端
部又は終端部における穀稈の挟持状態を、穀稈係止搬送
作用部又はレール部を退避させて解除し、脱穀穀稈の全
稈を扱室内に投入させるようにしていた。2. Description of the Related Art In the above-mentioned combine threshing culm conveying device, conventionally, as shown in, for example, Japanese Utility Model Laid-Open No. 2-123837 and No. 4-124035, a grain culm conveying means handles the threshing culms. The grain culm locking and transporting action part (feed chain, etc.) for stopping and transporting, and a plurality of elastic bodies (springs, etc.) arranged facing the grain culm locking and transporting action part and juxtaposed in the grain culm transporting direction. It is composed of a rail portion or the like biased toward the grain culm locking and transporting action part side, and the state of sandwiching the grain culm at the starting end or the end part of the grain culm transporting route is changed to the grain cullet locking and transporting action part or rail part. Was evacuated and released, and all the culms of threshed culms were put into the handling room.

【０００３】[0003]

【発明が解決しようとする課題】上記従来技術は、例え
ば刈取作業を行いながら畦際に近づくような場合に、刈
取前処理部が畦に衝突するのを回避するために、刈取前
処理部を上昇させながら刈取作業を行うと、植立穀稈に
対する刈り高さが極端な高刈りになるが、このような極
端に短い刈取穀稈が搬送されると、例えば、刈取穀稈の
存否検出用に設けた上下一対のセンサのうち、株元側に
位置するセンサによっても穀稈が検出されないので、こ
の穀稈非検出の情報に基づいて穀稈保持を解除して前記
全稈投入動作を作動させることにより、扱室内で穂先側
が扱胴に僅かに接触するだけで充分な脱穀処理が行えな
いことを回避して、全稈を扱室内に投入させて脱穀処理
を行い扱き残しを少なくさせるようにしたものである。SUMMARY OF THE INVENTION In the above-mentioned prior art, in order to prevent the pre-cutting processing unit from colliding with the ridges, for example, when approaching a ridge while performing a cutting operation, a pre-cutting processing unit is provided. When the cutting work is performed while raising the cutting height, the cutting height for the planted grain culm becomes extremely high. However, when such an extremely short harvested grain culm is conveyed, for example, for detecting the presence or absence of the harvested grain culm. Since the grain culm is not detected by the sensor located on the stocker side among the pair of upper and lower sensors provided in the above, the grain culm holding is released based on this grain culm non-detection information, and the whole culm feeding operation is activated. By doing so, it is possible to avoid the problem that sufficient threshing can not be performed by only a slight contact of the tip side with the handling barrel in the handling room, and put all the culm into the handling room to perform threshing processing and reduce the residual residue. It is the one.

【０００４】しかしながら、上記従来技術では、脱穀穀
稈搬送経路の始端部又は終端部において穀稈が全稈投入
されるものであるため、扱室の一部に多量の穀稈が投入
されて扱室内における脱穀負荷が不均一になり、そのた
め、全稈投入された穀稈が充分に扱き処理されないおそ
れがあった。However, in the above-mentioned conventional technique, since all the grain culms are thrown in at the starting end or the end of the threshing grain culm transporting route, a large amount of grain culms are thrown into a part of the handling room. The threshing load in the room became uneven, and there was a risk that the grain culms that had been put into all culms would not be sufficiently handled and treated.

【０００５】本発明は、上記実情に鑑みてなされたもの
であって、その目的は、簡単な構造で扱室の全体におい
て極力均一な状態で穀稈を全稈投入させるようにして、
上記従来技術の不具合を解消させることにある。The present invention has been made in view of the above circumstances, and an object thereof is to make it possible to throw all the culms into a culm with a simple structure and in a uniform condition in the entire handling room.
It is to eliminate the above-mentioned problems of the conventional technology.

【０００６】[0006]

【課題を解決するための手段】本発明のコンバインの脱
穀穀稈搬送装置の第１の特徴構成は、前記挟持力解除手
段が、前記複数の弾性体の前記レール部に対する付勢力
が前記扱室の前方側ほど弱くなるように、前記複数の弾
性体を支持する支持体を移動させるように構成されてい
る点にある。According to a first characteristic configuration of a threshing culm-carrying device for a combine of the present invention, the clamping force releasing means applies a biasing force to the rail portion of the plurality of elastic bodies to the handling chamber. It is configured such that the support body that supports the plurality of elastic bodies is moved such that the support body becomes weaker toward the front side.

【０００７】又、第２の特徴構成は、前記支持体が、そ
の後端側を支点として回動自在に構成され、前記挟持力
解除手段が、前記支持体を前記後端側の支点周りに回動
作動させて、前記複数の弾性体の前記レール部に対する
付勢力を前記扱室の前方側ほど弱くするように構成され
ている点にある。According to a second characteristic construction, the support is rotatable about its rear end side as a fulcrum, and the clamping force releasing means rotates the support body around the rear end side fulcrum. It is configured such that the biasing force of the plurality of elastic bodies with respect to the rail portion is weakened toward the front side of the handling chamber by operating the elastic body.

【０００８】[0008]

【作用】本発明の第１の特徴構成によれば、穀稈係止搬
送作用部に対向配置されたレール部を穀稈係止搬送作用
部側に付勢する複数の弾性体を支持する支持体が、上記
複数の弾性体のレール部に対する付勢力が扱室の前方側
ほど弱くなるように移動され、上記穀稈係止搬送作用部
とレール部とによって挟持搬送される穀稈の挟持力が、
扱室の前方側ほど弱くなる状態で解除される。According to the first characteristic construction of the present invention, the support for supporting the plurality of elastic bodies for urging the rail portion arranged to face the grain stalk locking and transporting action portion toward the grain stalk locking and transporting action portion side. The body is moved such that the urging force of the plurality of elastic bodies with respect to the rail portion becomes weaker toward the front side of the handling chamber, and the gripping force of the grain stems that is sandwiched and conveyed by the grain stem locking / conveying action portion and the rail portion. But,
It is released when it becomes weaker toward the front of the handling room.

【０００９】又、第２の特徴構成によれば、上記支持体
が、その後端側の支点周りに回動作動して、上記複数の
弾性体のレール部に対する付勢力が扱室の前方側ほど弱
くなり、上記穀稈係止搬送作用部とレール部とによって
挟持搬送される穀稈の挟持力が、扱室の前方側ほど弱く
なる状態で解除される。Further, according to the second characteristic construction, the support body is rotated around the fulcrum on the rear end side thereof, and the biasing force of the plurality of elastic bodies with respect to the rail portion is closer to the front side of the handling chamber. It becomes weaker, and the gripping force of the grain culls sandwiched and conveyed by the grain culm locking / conveying action portion and the rail portion is released in a state of becoming weaker toward the front side of the handling chamber.

【００１０】[0010]

【発明の効果】従って、本発明の第１の特徴構成によれ
ば、挟持状態で搬送される脱穀穀稈の挟持力が扱室の前
方側ほど弱くなる状態で解除され、脱穀穀稈が扱室の前
方側から後方側に搬送されるに伴って、穀稈が少量ずつ
均一に扱室内に全稈投入されるので、脱穀負荷が均一に
なり、各投入穀稈に対して充分な扱き処理が行われ、扱
き残し等の不具合が解消される。しかも、支持体を移動
させて所望の目的に達するものであるから、各弾性体の
付勢力を各別に調節する構造に較べて、構造の簡略化を
図れるものである。According to the first characteristic configuration of the present invention, therefore, the threshing culms of the threshing culms conveyed in the sandwiched state are released when the gripping force becomes weaker toward the front side of the handling chamber, and the threshing culms are handled. Grain culms are evenly introduced into the handling chamber in small amounts as they are transported from the front side to the rear side of the chamber, so that the threshing load becomes uniform and sufficient handling treatment is performed on each input culm. Is carried out, and problems such as leftovers are eliminated. Moreover, since the support is moved to reach the desired purpose, the structure can be simplified as compared with the structure in which the biasing force of each elastic body is adjusted separately.

【００１１】又、第２の特徴構成によれば、穀稈搬送方
向に並置された複数の弾性体を支持する支持体をその後
端側の支点周りに回動させるだけの簡素な手段で、脱穀
穀稈の穀稈挟持力を扱室の前方側ほど弱くなる状態で解
除でき、もって、第１の特徴構成の効果を実現する好適
な手段が得られる。Further, according to the second characteristic construction, the threshing is performed by a simple means of rotating the support for supporting the plurality of elastic bodies juxtaposed in the grain culm conveying direction around the fulcrum on the rear end side. It is possible to release the grain culm clamping force of the grain culm in a state in which the grain culm clamping force becomes weaker toward the front side of the handling room, and thus it is possible to obtain suitable means for achieving the effect of the first characteristic configuration.

【００１２】[0012]

【実施例】以下、本発明の実施例を図面に基いて説明す
る。図１に示すように、コンバインは、左右一対のクロ
ーラ走行装置１、脱穀装置２、操縦部３等を備えた機体
の前部に刈取部４を横軸芯Ｐ周りで昇降自在に連結して
構成してある。Embodiments of the present invention will be described below with reference to the drawings. As shown in FIG. 1, the combine has a cutting unit 4 connected to a front portion of a machine body including a pair of left and right crawler traveling devices 1, a threshing device 2, a control unit 3 and the like so as to be vertically movable around a horizontal axis P. Configured.

【００１３】前記刈取部４は、植立穀稈を引き起こす引
起し装置５、引き起こされた植立穀稈の株元を切断する
刈刃６、刈取られた穀稈を寄せ集めて後方へ搬送する補
助搬送装置７、刈取穀稈を徐々に横倒ししながら脱穀装
置２のフィードチェーン８ａに受渡す縦搬送装置９等を
備え、昇降用シリンダ１０の駆動により昇降揺動するよ
う構成してある。そして、通常の刈取作業では、刈取部
４は地面に対して設定高さを維持するよう昇降制御され
ることになるが、操縦部３に設けた昇降レバー１１の手
動操作によって昇降させることもでき、刈取部４を設定
高さ以上上昇させた場合には、機械的な連係機構によっ
て刈取部４に対する動力を自動的に遮断して刈取部４の
駆動を停止させる刈取自動停止機構を備えてある。The reaping section 4 raises the planted grain culverts 5, the cutting blade 6 for cutting the roots of the planted grain culms that have been raised, and collects the harvested grain culms and conveys them backward. The auxiliary transporting device 7, the vertical transporting device 9 and the like for handing over the harvested culm to the feed chain 8a of the threshing device 2 while gradually laying it down sideways are configured to swing up and down by the drive of the lifting cylinder 10. In normal mowing work, the mowing unit 4 is controlled to move up and down so as to maintain the set height with respect to the ground, but it can also be lifted and lowered by manually operating the lifting lever 11 provided on the control unit 3. When the reaping unit 4 is raised more than a set height, a mechanical linkage mechanism is provided to automatically cut off the power to the reaping unit 4 to stop the driving of the reaping unit 4 and a reaping automatic stop mechanism is provided. .

【００１４】前記縦搬送装置９は、穀稈の株元側を挟持
搬送する株元搬送装置９ａ、穀稈の穂先側を係止搬送す
る穂先搬送装置９ｂ及び穂先案内板９ｃから成り、刈取
部４の揺動軸芯Ｐと同一軸芯周りで揺動自在に支持して
あり、ギア式減速機構付き電動モータＭ１〔以下、扱深
さモータという〕によって揺動調節自在に設けること
で、補助搬送装置７からの受け取り挟持箇所が稈長方向
に変更され、脱穀装置２における扱深さが変更調節でき
るよう構成してある。The vertical transfer device 9 comprises a stock transfer device 9a for sandwiching and transferring the stock side of the grain culm, a tip transfer device 9b for locking and transporting the tip side of the culm, and a tip guide plate 9c. No. 4, which is swingably supported about the same axis as the swing axis P, and which is swingably adjustable by an electric motor M1 with a gear type reduction mechanism [hereinafter referred to as a handling depth motor]. The receiving and pinching portion from the transport device 7 is changed in the culm length direction, and the handling depth in the threshing device 2 can be changed and adjusted.

【００１５】刈取穀稈の搬送経路中に、穀稈が接触する
と揺動してオン作動するスイッチ式に構成された稈長検
出用の一対の穀稈存否センサＳ１，Ｓ２を設けている。
そして、これら両センサＳ１，Ｓ２の間に穀稈の穂先が
位置するように、つまり、穂先側に位置する穀稈存否セ
ンサＳ１〔以下、長稈センサという〕がオフ状態で、株
元側に位置する穀稈存否センサＳ２〔以下、短稈センサ
という〕がオン状態になるように、後述の制御装置１２
が扱深さモータＭ１を自動制御することで、植立穀稈の
稈長にかかわらず扱深さが常に適切な状態になるように
構成してある。尚、前記縦搬送装置９の揺動支点部に
は、縦搬送装置９の現在扱深さ調節位置がどの位置にあ
るかを検出するポテンショメ−タ型の供給位置センサ１
３を設けてある。又、縦搬送装置９の始端部には、穀稈
が搬送されているか否かを検出する株元センサ１４を備
えてあり、縦搬送装置９の駆動軸部分には、株元搬送装
置９ａの穀稈搬送状態を検出する搬送回転センサ１９を
設けている。A pair of grain culm presence / absence sensors S1 and S2 for detecting culm length are provided in the conveyance route of the harvested grain culm, which is of a switch type and is oscillated to be turned on when the grain culm contacts.
Then, so that the tip of the grain culm is located between these two sensors S1 and S2, that is, the grain culm presence sensor S1 [hereinafter referred to as a long culm sensor] located on the tip side is in the off state, and The control device 12 to be described later so that the grain culm presence sensor S2 (hereinafter referred to as a short culm sensor) located in the ON state is turned on.
Is configured to automatically control the handling depth motor M1 so that the handling depth is always appropriate regardless of the culm length of the planted grain culm. At the swinging fulcrum portion of the vertical transfer device 9, a potentiometer-type supply position sensor 1 for detecting the current position of the vertical transfer device 9 for adjusting the handling depth.
3 is provided. In addition, the starting end of the vertical transport device 9 is provided with a stock sensor 14 for detecting whether or not the grain culm is being transported, and the drive shaft portion of the vertical transport device 9 includes the stock transport device 9a. A transport rotation sensor 19 for detecting the grain culm transport state is provided.

【００１６】図２に示すように、前記脱穀装置２は、前
記縦搬送装置９から受け取った刈取穀稈を脱穀穀稈とし
て扱き処理する扱室Ａと、この扱室Ａの側方に設けられ
て、前記脱穀穀稈を扱室Ａの後方側に向けて挟持状態で
搬送する穀稈搬送手段Ｈとを備えている。この穀稈搬送
手段Ｈは、穀稈係止搬送作用部としてのフィードチェー
ン８ａに対向してレール部としての挟持レール８ｂを配
置して構成され、挟持レール８ｂは、穀稈搬送方向即ち
前後方向に並置された複数の弾性体としての圧縮状態の
コイルバネ１８にてフィードチェーン８ａ側に付勢さ
れ、且つ、各コイルバネ１８の基端部は、支持体として
の長尺状のフレーム体２５にて受け止められている。即
ち、挟持レール８ｂが、複数の分割体を枢支ピン２３に
より枢支連結して構成されるとともに、コイルバネ１８
が各枢支ピン２３をフィードチェーン８ａ側に押圧付勢
している。但し、前端側及び後端側の各コイルバネ１８
の基端部は、機体にて受け止め支持されている。これに
より、穀稈の株元側を係止して搬送しながら、穂先側を
扱室Ａ内で扱き処理するよう構成してある。又、フレー
ム体２５は、その後端側を支点として上下方向に回動自
在に構成されるとともに、前端側に設けたピン２５ａが
長穴状のガイド穴２６に沿って上下方向に移動するよう
にガイドされている。As shown in FIG. 2, the threshing device 2 is provided on the side of the handling room A for handling the harvested culm received from the vertical conveying device 9 as a threshing culm. And a grain culm transporting means H for transporting the threshed grain culm toward the rear side of the handling room A in a sandwiched state. The grain culm transporting means H is configured by arranging a sandwiching rail 8b as a rail portion facing a feed chain 8a as a grain stalk locking transporting action portion, and the sandwiching rail 8b is in the grain stalks conveying direction, that is, the front-rear direction. Are urged toward the feed chain 8a by the coil springs 18 in a compressed state as a plurality of elastic bodies juxtaposed with each other, and the base end portion of each coil spring 18 is formed by a long frame body 25 as a support body. It has been taken. That is, the holding rail 8b is configured by pivotally connecting a plurality of divided bodies by the pivot pin 23, and the coil spring 18
Urges each pivot pin 23 toward the feed chain 8a. However, the front and rear coil springs 18
The base end portion of is received and supported by the machine body. Thus, the tip side of the grain culm is handled in the handling room A while being transported while being locked at the root side of the culm. Further, the frame body 25 is configured to be vertically rotatable around the rear end side as a fulcrum, and the pin 25a provided on the front end side is moved vertically along the elongated guide hole 26. Guided.

【００１７】前記フレーム体２５の上方に、電動モータ
Ｍ２〔以下、解除用モータという〕にギア連動されて前
後方向に伸縮作動する伸縮アーム３０が設けられ、伸縮
アーム３０の先端が機体に回動枢支されたくの字状の第
１アーム３１の上端部に枢支連結される一方、第１アー
ム３１の下端部がリンク３２を介して前記フレーム体２
５に枢支連結されている。An extendable arm 30 is provided above the frame body 25 so as to extend and retract in the front-rear direction in conjunction with an electric motor M2 (hereinafter referred to as a release motor), and the tip end of the extendable arm 30 rotates to the body. While being pivotally connected to the upper end of the pivoted dogleg-shaped first arm 31, the lower end of the first arm 31 is connected to the frame body 2 via a link 32.
It is pivotally connected to 5.

【００１８】以上において、解除用モータＭ２を収縮作
動させると、前記伸縮アーム３０、第１アーム３１、及
びリンク３２を介して、フレーム体２５が後端側の支点
周りに上方に回動し、各コイルバネ１８の基端側が前方
側ほど上方に引き上げられる。そのため、前方側のコイ
ルバネ１８ほど圧縮状態が解除されて挟持レール８ｂ
（実際は各枢支ピン２３）に対する付勢力が弱くなり、
フィードチェーン８ａと挟持レール８ｂの間に挟持され
る穀稈の挟持力が前方側ほど弱くなる。従って、穀稈搬
送手段Ｈの脱穀穀稈に対する穀稈挟持力を解除する挟持
力解除手段Ｋが、上記解除用モータＭ２、及びアーム等
３０〜３２によって構成され、この挟持力解除手段Ｋ
が、前記複数のコイルバネ１８の前記挟持レール８ｂに
対する付勢力が前記扱室Ａの前方側ほど弱くなるよう
に、前記フレーム体２５を移動させるように構成され
る。具体的には、上記のように、フレーム体２５を後端
側の支点周りに回動作動させる。In the above, when the releasing motor M2 is contracted, the frame body 25 pivots upward about the fulcrum on the rear end side via the telescopic arm 30, the first arm 31, and the link 32, The base end side of each coil spring 18 is pulled upward toward the front side. Therefore, the coil spring 18 on the front side is released from the compressed state, and the holding rail 8b is released.
The urging force against (actually each pivot pin 23) becomes weaker,
The gripping force of the grain culms clamped between the feed chain 8a and the clamping rail 8b becomes weaker toward the front side. Therefore, the holding force releasing means K for releasing the holding force of the grain culm to the threshing grain culm of the grain culm conveying means H is constituted by the releasing motor M2 and the arms 30 to 32.
However, the frame body 25 is moved so that the biasing force of the plurality of coil springs 18 with respect to the holding rail 8b becomes weaker toward the front side of the handling chamber A. Specifically, as described above, the frame body 25 is rotated around the fulcrum on the rear end side.

【００１９】このコンバインは、畦際での刈り上げ作業
を自動的に行うともに、この刈り上げ作業で生じる極短
稈の刈取穀稈が扱き残しにならないように構成されてい
る。つまり、操縦部３に設けた刈り上げ作業開始用の指
示スイッチ１５を操作すると、後述の制御装置１２が、
刈取部４を自動的に上昇させるとともに扱深さモータＭ
１を最深扱側に作動させ、更に、後述のように、前記挟
持力解除手段Ｋを挟持力解除状態に切り換えて、刈取穀
稈の全稈を扱室Ａに投入するのである。The combine is constructed so that the cutting work at the edge of the ridge is automatically performed and the cut grain culm of the extremely short culm produced by the cutting work is not left unhandled. That is, when the instruction switch 15 for starting the cutting operation provided on the control unit 3 is operated, the control device 12 described later
The reaping unit 4 is automatically raised and the handling depth motor M
1 is operated to the deepest handling side, and further, as described later, the clamping force releasing means K is switched to the clamping force releasing state, and all the culms of the harvested grain culms are thrown into the handling room A.

【００２０】次に、制御構成について説明すると、図３
に示すように、マイクロコンピュータを利用した制御装
置１２が設けられ、この制御装置１２に、前記穀稈存否
センサＳ１，Ｓ２、供給位置センサ１３、株元センサ１
４、搬送回転センサ１９、指示スイッチ１５の各検出情
報が入力されている。一方、制御装置１２からは、前記
扱深さモータＭ１、昇降シリンダ１０、及び、解除用モ
ータＭ２に対する各駆動信号が出力されている。Next, the control configuration will be described with reference to FIG.
As shown in FIG. 1, a control device 12 using a microcomputer is provided, and the control device 12 includes the grain culm presence / absence sensors S1 and S2, the supply position sensor 13, and the stock origin sensor 1.
4, detection information of the conveyance rotation sensor 19 and the instruction switch 15 are input. On the other hand, the control device 12 outputs drive signals for the handling depth motor M1, the lifting cylinder 10, and the releasing motor M2.

【００２１】前記搬送回転センサ１９の検出値より株元
搬送装置９ａによる穀稈搬送速度が検出され、この情報
より、前記穀稈存否センサＳ１，Ｓ２の配設箇所からフ
ィードチェーン８ａの搬送始端部までの一定距離穀稈が
搬送されたか否かが判断され、又、フィードチェーン８
ａの移動速度は予め定めた一定速度であることから、フ
ィードチェーン８ａの搬送始端部から前記挟持力解除手
段Ｋの始端位置（挟持レール８ｂの先端位置）までの搬
送時間も、一定時間として求めることができる。そこ
で、前記制御装置１２は、扱深さモータＭ１が最深扱き
側に調節されている状態で、前記長稈センサＳ１及び短
稈センサＳ２が共に穀稈の非存在を検出すると、当該セ
ンサＳ１，Ｓ２の配設箇所から前記フィードチェーン８
ａの搬送始端部まで刈取穀稈が搬送され、且つ、フィー
ドチェーン８ａの搬送始端部から前記挟持力解除手段Ｋ
の始端位置まで搬送するに要する一定時間が経過した後
に、前記解除用モータＭ２を収縮作動させて、挟持力解
除手段Ｋを挟持力非解除状態から挟持力解除状態に切り
換えるように構成してある。The transport speed of the grain culm by the stock carrier transporting device 9a is detected from the value detected by the transport rotation sensor 19, and from this information, the transport start end of the feed chain 8a is determined from the location of the grain stalk presence / absence sensors S1 and S2. It is determined whether or not the cereal culms have been transported to the feed chain 8
Since the moving speed of a is a predetermined constant speed, the transport time from the transport start end of the feed chain 8a to the start end position of the gripping force releasing means K (the tip position of the sandwiching rail 8b) is also calculated as a constant time. be able to. Therefore, when the long culm sensor S1 and the short culm sensor S2 both detect the nonexistence of grain culms in the state in which the handling depth motor M1 is adjusted to the deepest handling side, the controller 12 detects the sensor S1, From the location of S2 to the feed chain 8
The harvested grain culm is conveyed to the conveyance start end portion of a, and the clamping force releasing means K is conveyed from the conveyance start end portion of the feed chain 8a.
After the lapse of a fixed time required to convey the holding force to the starting end position, the releasing motor M2 is contracted to switch the holding force releasing means K from the holding force non-released state to the holding force released state. .

【００２２】以下、制御装置１２の制御手順について説
明する。図４に示すように、株元センサ１４がオン状態
で穀稈が搬送状態であることが検出されており、指示ス
イッチ１５が操作されると、刈取自動停止機構の作動を
牽制して刈取部４を上昇させるとともに、扱深さモータ
Ｍ１を最深扱側に作動させてその状態を維持する〔ステ
ップ１〜５〕。尚、指示スイッチ１５が操作されていな
いときは、通常の扱深さ制御が実行される〔ステップ
６〕。The control procedure of the controller 12 will be described below. As shown in FIG. 4, when the stock origin sensor 14 is in the ON state and it is detected that the grain culm is in the transporting state, and the instruction switch 15 is operated, the operation of the automatic reaping stop mechanism is restrained to suppress the reaper. 4 is raised, and the handling depth motor M1 is operated to the deepest handling side to maintain that state [steps 1 to 5]. When the instruction switch 15 is not operated, normal handling depth control is executed [step 6].

【００２３】そして、搬送回転センサ１９の検出情報よ
り搬送状態が検出され、且つ、供給位置センサ１３の検
出情報より縦搬送装置９が最深扱側供給位置にあること
が確認され、長稈センサＳ１及び短稈センサＳ２の夫々
がオフ状態で極短稈が搬送されてきたことが検出される
と、搬送回転センサ１９の検出情報より穀稈が各センサ
Ｓ１，Ｓ２配設箇所からフィードチェーン８ａの始端部
までの一定距離搬送されたと判断され、更に、その時点
からフィードチェーン８ａの始端部から挟持力解除手段
Ｋまでの搬送に要する一定時間が経過すると、解除用モ
ータＭ２を作動させて穀稈挟持力を解除し全稈投入状態
に切り換える〔ステップ７〜１２〕。Then, the conveyance state is detected from the detection information of the conveyance rotation sensor 19, and it is confirmed from the detection information of the supply position sensor 13 that the vertical conveyance device 9 is at the deepest handling side supply position, and the long culm sensor S1. When it is detected that the short culm is conveyed while the short culm sensor S2 is off, the grain culm is detected from the conveyance rotation sensor 19 from the location where the sensors S1 and S2 are installed to the feed chain 8a. When it is determined that the fixed distance to the starting end portion has been conveyed, and further, from that time point, a fixed time required for conveyance from the starting end portion of the feed chain 8a to the gripping force releasing means K has elapsed, the releasing motor M2 is operated to operate the grain kernel. The gripping force is released and the state is switched to the all culm insertion state [steps 7 to 12].

【００２４】そして、全稈投入作動中に極短稈の穀稈搬
送が終了して、長稈センサＳ１あるいは短稈センサＳ２
のうちいずれかのセンサがオン状態になると、各センサ
Ｓ１，Ｓ２配設箇所からフィードチェーン８ａの始端部
まで搬送され、且つ、フィードチェーン８ａでの搬送所
要時間経過した後、解除用モータＭ２の作動を停止して
通常の保持搬送状態に戻す〔ステップ１３〜１６〕。Then, the transportation of the extremely short culm culms is completed during the whole culm feeding operation, and the long culm sensor S1 or the short culm sensor S2
When any one of the sensors is turned on, the sensor is conveyed from the position where the sensors S1 and S2 are arranged to the starting end of the feed chain 8a, and after the conveyance required time in the feed chain 8a elapses, the release motor M2 is driven. The operation is stopped to return to the normal holding and conveying state [steps 13 to 16].

【００２５】〔別実施例〕穀稈搬送手段Ｈを構成する穀
稈係止搬送作用部８ａを、実施例のフィードチェーン以
外に、突起付の搬送ベルト等で構成してもよく、又、レ
ール部８ｂも、実施例の分割レールを枢支連結したもの
に限らない。又、弾性体１８も、実施例のコイルバネ１
８以外に、例えば、板バネ等の他のバネ類、及び、ゴム
材等で構成してもよく、更に、レール部８ｂが枢支連結
された分割レールの場合においてレール部８ｂに対する
付勢箇所も枢支連結用の枢支ピン２３ではなく例えば各
レールの中央位置にしてもよい。[Other Embodiments] The grain culm locking / conveying action portion 8a constituting the grain culm conveying means H may be constituted of a conveyor belt with a protrusion or the like in addition to the feed chain of the embodiment, or a rail. The portion 8b is not limited to the split rail of the embodiment pivotally connected. The elastic body 18 is also the coil spring 1 of the embodiment.
Other than 8, for example, other springs such as a leaf spring and rubber material may be used. Further, in the case of a split rail in which the rail portion 8b is pivotally connected, a biasing portion for the rail portion 8b is provided. Also, instead of the pivot pin 23 for connecting the pivots, for example, the center position of each rail may be used.

【００２６】又、穀稈搬送手段Ｈを、上記実施例のよう
に、穀稈搬送方向に移動する穀稈係止搬送作用部８ａ
（フィードチェーン）に対向して、穀稈搬送方向には移
動しないレール部８ｂを配置して構成するのではなく、
例えば、穀稈を両側から挟持する上下一対の挟持搬送装
置が共に穀稈搬送方向に移動して穀稈を挟持搬送するよ
うに構成する等、穀稈搬送手段Ｈの具体構成は種々変更
できる。Further, as in the above-mentioned embodiment, the grain culm transporting means H is moved in the grain culm transporting direction, and the grain culm locking and transporting action portion 8a.
Instead of arranging the rail portion 8b facing the (feed chain) and not moving in the grain culm conveying direction,
For example, the concrete configuration of the grain culm transporting means H can be variously changed, such that a pair of upper and lower sandwiching and conveying devices that sandwich the grain culm from both sides move in the grain culm conveying direction to sandwich and convey the grain culm.

【００２７】挟持力解除手段Ｋを穀稈挟持力を扱室Ａの
前方側ほど弱くするように構成するために、複数の弾性
体（コイルバネ１８）を受け止める支持体２５を後端側
の支点周りに回動させる場合に、上記実施例のように、
解除用モータＭ２にて駆動される伸縮アーム３０の先端
部をアーム３１及びリンク３２を介して支持体２５に枢
支連結する構成に限らない。例えば図５及び図６に示す
ように、支持体２５の前方側箇所に上方より断面コの字
状の押当体２７を嵌合状態で接当させ、この押当体２７
の上部箇所に設けたネジに螺合した回転軸を電動モータ
等によって回転させて、押当体２７を前後方向に移動さ
せるものでもよい。この場合に、押当体２７が前方側に
移動して支持体２５との接当面が上方に上がると、弾性
体１８から上方への付勢力を受けている支持体２５が後
端側の支点周りに回動することになる。尚、もとの状態
に戻すには、押当体２７を後方側に移動させ、支持体２
５との接当面を下方に押し下げるようにする。In order to make the gripping force releasing means K weaken the gripping force of the grain culm toward the front side of the handling room A, the support body 25 for receiving a plurality of elastic bodies (coil springs 18) is provided around the fulcrum on the rear end side. When rotating to, like the above embodiment,
The invention is not limited to the configuration in which the distal end portion of the telescopic arm 30 driven by the releasing motor M2 is pivotally connected to the support body 25 via the arm 31 and the link 32. For example, as shown in FIGS. 5 and 6, a pushing body 27 having a U-shaped cross section is brought into contact with a front side portion of the support body 25 from above in a fitted state, and the pushing body 27 is pressed.
It is also possible to rotate the rotating shaft screwed with the screw provided in the upper part of the above with an electric motor or the like to move the pressing body 27 in the front-back direction. In this case, when the pushing body 27 moves to the front side and the contact surface with the support body 25 rises upward, the support body 25 receiving the upward urging force from the elastic body 18 causes the fulcrum on the rear end side. It will rotate around. In addition, in order to return to the original state, the pushing body 27 is moved to the rear side and the supporting body 2
Push down the contact surface with 5.

【００２８】又、挟持力解除手段Ｋを穀稈挟持力を扱室
Ａの前方側ほど弱くするようにする手段として、複数の
弾性体（コイルバネ１８）を受け止める支持体２５を後
端側の支点周りに回動させる構成（この場合は後端側は
移動しない）以外に、例えば、支持体２５の前後両端側
を共に移動させるとともに、前端側の上方への移動量を
後端側よりも多くする等の構成も可能である。Further, as a means for making the clamping force releasing means K weaken the grain culm clamping force toward the front side of the handling room A, a support body 25 for receiving a plurality of elastic bodies (coil springs 18) is provided as a fulcrum on the rear end side. In addition to the configuration of rotating around (the rear end side does not move in this case), for example, both front and rear end sides of the support body 25 are moved together, and the amount of upward movement of the front end side is larger than that of the rear end side. It is also possible to adopt a configuration such as.

【００２９】又、挟持力解除手段Ｋは、上記実施例のよ
うに、電動モータＭ２の作動力をアーム等を介して伝達
して弾性体１８の付勢力を弱くする（具体的には、支持
体２５を移動させる）もの以外に、例えば、ワイヤー等
を介して電動モータＭ２の作動力を伝達したり、あるい
は、電動モータに代えて油圧シリンダや電磁ソレノイド
で構成したりする等、挟持力解除手段Ｋの作動力発生手
段及びその作動力の伝達機構等の具体構成は種々変更で
きる。Further, the clamping force releasing means K transmits the operating force of the electric motor M2 via the arm or the like to weaken the urging force of the elastic body 18 (specifically, the supporting force), as in the above embodiment. Other than moving the body 25), for example, the operating force of the electric motor M2 is transmitted via a wire or the like, or a hydraulic cylinder or an electromagnetic solenoid is used instead of the electric motor to release the clamping force. The concrete structure of the operating force generating means of the means K and the transmitting mechanism of the operating force can be variously changed.

【００３０】尚、特許請求の範囲の項に図面との対照を
便利にする為に符号を記すが、該記入により本発明は添
付図面の構成に限定されるものではない。It should be noted that although reference numerals are given in the claims for convenience of comparison with the drawings, the present invention is not limited to the configurations of the accompanying drawings by the entry.

【図面の簡単な説明】[Brief description of drawings]

【図１】コンバインの前部側面図FIG. 1 is a front side view of the combine.

【図２】脱穀装置の要部側面図FIG. 2 is a side view of a main part of the threshing device.

【図３】制御構成のブロック図FIG. 3 is a block diagram of a control configuration.

【図４】制御作動のフローチャートFIG. 4 is a flowchart of control operation.

【図５】別実施例の挟持力解除手段を示す側面図FIG. 5 is a side view showing a clamping force releasing means of another embodiment.

【図６】別実施例の挟持力解除手段を示す正面図FIG. 6 is a front view showing a clamping force releasing means of another embodiment.

【符号の説明】[Explanation of symbols]

Ａ 扱室 Ｈ 穀稈搬送手段 Ｋ 挟持力解除手段 ８ａ 穀稈係止搬送作用部 ８ｂ レール部 １８ 弾性体 ２５ 支持体 A handling room H grain culm transporting means K clamping force releasing means 8a grain culm locking transporting action part 8b rail part 18 elastic body 25 support

───────────────────────────────────────────────────── フロントページの続き (72)発明者 尾崎 徳宗 大阪府堺市石津北町64番地 株式会社クボ タ堺製造所内 (72)発明者 大谷 利克 大阪府堺市石津北町64番地 株式会社クボ タ堺製造所内 (72)発明者 征矢 保 大阪府堺市石津北町64番地 株式会社クボ タ堺製造所内 (72)発明者 林 繁樹 大阪府堺市石津北町64番地 株式会社クボ タ堺製造所内 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Tokunune Ozaki 64 Ishizukita-machi, Sakai City, Osaka Prefecture Kubota Sakai Factory Co., Ltd. (72) Tokatsu Otani 64, Ishizukita-machi, Sakai City, Osaka Prefecture (72) Inventor Seiya Ho 64 64 Ishizukita-machi, Sakai City, Osaka Prefecture Kubota Sakai Manufacturing Co., Ltd. (72) Inventor Shigeki Hayashi 64, Ishizukita-machi, Sakai City Osaka Prefecture Kubota Sakai Manufacturing Co., Ltd.

Claims (2)

【特許請求の範囲】[Claims] 【請求項１】 扱室（Ａ）の側方に設けられて、前記扱
室（Ａ）にて扱き処理される脱穀穀稈を前記扱室（Ａ）
の後方側に向けて挟持状態で搬送する穀稈搬送手段
（Ｈ）が、穀稈係止搬送作用部（８ａ）に対向して、穀
稈搬送方向に並置された複数の弾性体（１８）にて前記
穀稈係止搬送作用部（８ａ）側に付勢されたレール部
（８ｂ）を配置して構成され、 前記穀稈搬送手段（Ｈ）の穀稈挟持力を解除する挟持力
解除手段（Ｋ）が設けられたコンバインの脱穀穀稈搬送
装置であって、 前記挟持力解除手段（Ｋ）が、前記複数の弾性体（１
８）の前記レール部（８ｂ）に対する付勢力が前記扱室
（Ａ）の前方側ほど弱くなるように、前記複数の弾性体
（１８）を支持する支持体（２５）を移動させるように
構成されているコンバインの脱穀穀稈搬送装置。1. A thresher culm provided on a side of the handling room (A) and treated by the handling room (A), the handling room (A).
A plurality of elastic bodies (18) arranged side by side in the grain culm conveying direction, facing the rear side of the And a rail portion (8b) urged to the grain culm locking and transporting action portion (8a) side is arranged to release the clamping force for releasing the grain culm clamping force of the grain culm transporting means (H). A threshing grain culm conveying device of a combine provided with means (K), wherein the clamping force releasing means (K) is provided with the plurality of elastic bodies (1).
The support (25) for supporting the plurality of elastic bodies (18) is moved such that the biasing force of the rail portion (8b) of 8) becomes weaker toward the front side of the handling chamber (A). Combined threshing culm transporting equipment. 【請求項２】 前記支持体（２５）が、その後端側を支
点として回動自在に構成され、 前記挟持力解除手段（Ｋ）が、前記支持体（２５）を前
記後端側の支点周りに回動作動させて、前記複数の弾性
体（１８）の前記レール部（８ｂ）に対する付勢力を前
記扱室（Ａ）の前方側ほど弱くするように構成されてい
る請求項１記載のコンバインの脱穀穀稈搬送装置。2. The support body (25) is configured to be rotatable around a rear end side as a fulcrum, and the clamping force releasing means (K) moves the support body (25) around the rear end side fulcrum. The combine harvester according to claim 1, wherein the combiner is configured so that the biasing force of the plurality of elastic bodies (18) with respect to the rail portion (8b) is weakened toward the front side of the handling chamber (A). Thresher culm carrier device.