JP2011177075A - Combine harvester - Google Patents

Combine harvester Download PDF

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JP2011177075A
JP2011177075A JP2010043085A JP2010043085A JP2011177075A JP 2011177075 A JP2011177075 A JP 2011177075A JP 2010043085 A JP2010043085 A JP 2010043085A JP 2010043085 A JP2010043085 A JP 2010043085A JP 2011177075 A JP2011177075 A JP 2011177075A
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cutting
state
linkage
guide
guided
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Taiichiro Azuma
泰一郎 東
Takuji Segawa
卓二 瀬川
Masayuki Horiuchi
真幸 堀内
Shiro Okuda
史郎 奥田
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Kubota Corp
株式会社クボタ
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<P>PROBLEM TO BE SOLVED: To provide a combine harvester which has a simple structure with low cost, and can surely be switched into a state that the height of a sub-cutting device can separately be adjusted from a main cutting device or into a state that the posture of the sub-cutting device can be changed in interlock with the change in the height of the main cutting device. <P>SOLUTION: The main cutting device 9 is supported on a reaping conveying device 3, and the sub-cutting device 14 is supported on elevation frames 13A, 13C disposed on a travel machine frame 2 in an upward or downward swingable state. A link means B switchable of the link state of the upward or downward operation of the sub-cutting device 14 to the reaping conveying device 3 is constituted such that: a guide member 51 in which a long hole is formed is disposed on the sub-cutting device 14 side; and a guided member 52 which is freely movably engaged and guided along the long hole is disposed on the reaping conveying device 3 side; and a switching operation member 53 switchable between a link operation state for limiting the movement of the guided member 52 along the long hole and a link-canceling operation state for permitting the movement of the guided member 52 along the long hole is disposed on the guide member 51. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

本発明は、植立茎稈を刈り取る主切断装置と、その主切断装置よりも低い位置で前記植立茎稈を刈り取る副切断装置とが備えられたコンバインに関する。   The present invention relates to a combine provided with a main cutting device that cuts a planted stalk and a secondary cutting device that cuts the planted stalk at a position lower than the main cutting device.

上記のように、植立茎稈の上部を刈り取る主切断装置と、主切断装置よりも低い位置で植立茎稈を刈り取る副切断装置との二種の切断装置を備えているのは、茎稈の着粒部のみを脱穀装置に投入するために主切断装置で着粒部を刈り取り、着粒部より下側の茎稈部分は脱穀装置へ投入しないで圃場に放出するように副切断装置で株元部分を切断するためである。   As described above, the stalk has two types of cutting devices: a main cutting device that cuts the upper part of the planted stalk and a secondary cutting device that cuts the planted stalk at a position lower than the main cutting device. In order to put only the granulation part of the straw into the threshing device, the granulation part is cut by the main cutting device, and the stem cutting part below the granulation part is discharged to the field without being thrown into the threshing device. This is to cut the stock portion.

この種のコンバインとしては、次のような構成のものが従来より知られている。
すなわち、主切断装置を備えた刈取部に副切断装置を取り付けて、主切断装置の刈高さ調節操作にともなって、副切断装置の刈高さも同調して昇降制御するようにしながら、刈取部全体の対地レベルが所定高さ以上であると、副切断装置を自動的に格納位置にまで上昇させるように構成したものである(例えば特許文献1参照)。
As this type of combine, one having the following configuration is conventionally known.
That is, the secondary cutting device is attached to the cutting unit provided with the main cutting device, and the cutting unit is controlled to move up and down in synchronization with the cutting height adjustment operation of the main cutting device while adjusting the cutting height of the secondary cutting device. When the entire ground level is equal to or higher than a predetermined height, the auxiliary cutting device is automatically raised to the storage position (see, for example, Patent Document 1).

説明を加えると、上記構成では、主切断装置を備えた刈取部に副切断装置を取り付けるものであるから、主切断装置での刈高さを適正に保つために刈高さ調節を行うと、それに連動して副切断装置の刈取作用位置の高さも変化してしまうことになる。そこで、副切断装置による刈高さを適正に保つために、刈取部全体の揺動作動を検出するポテンショメータと、刈取部に対する副切断装置の相対高さを検出するポテンショメータと、両ポテンショメータの検出値から適正調節代を演算する制御装置とを備え、その制御装置からの出力で作動される油圧シリンダを用いて、刈取部の対地高さが所定高さ未満であれば、刈取部の対地高さの違いにかかわらず副切断装置の刈高さを一定値に維持させ、刈取部の対地高さが所定高さ以上であると、副切断装置を自動的に格納位置にまで上昇させるように副切断装置の高さを調整するようになっている。   In addition to the explanation, in the above configuration, since the auxiliary cutting device is attached to the cutting portion provided with the main cutting device, when adjusting the cutting height in order to keep the cutting height in the main cutting device properly, In conjunction with this, the height of the cutting action position of the auxiliary cutting device also changes. Therefore, in order to keep the cutting height by the secondary cutting device properly, the potentiometer that detects the swinging operation of the entire cutting unit, the potentiometer that detects the relative height of the secondary cutting device with respect to the cutting unit, and the detection values of both potentiometers If the ground height of the cutting part is less than a predetermined height using a hydraulic cylinder that is operated by the output from the control apparatus, the ground height of the cutting part is calculated. Regardless of the difference, the cutting height of the secondary cutting device is maintained at a constant value, and when the ground height of the cutting part is equal to or higher than the predetermined height, the secondary cutting device is automatically raised to the storage position. The height of the cutting device is adjusted.

ちなみに、上記したような刈取部の対地高さの違いにかかわらず副切断装置の刈高さを一定値に維持させる状態というのは、主切断装置の高さ位置変更にかかわらず独立して副切断装置が昇降自在である状態に対応するものであり、刈取部の対地高さが所定高さ以上であると副切断装置を自動的に格納位置にまで上昇させる状態は、主切断装置の高さ位置変更に連動して副切断装置を姿勢変更させる状態に対応するものである。   By the way, the state in which the cutting height of the secondary cutting device is maintained at a constant value regardless of the difference in height between the cutting parts as described above is independent of the secondary cutting device regardless of the height position change of the main cutting device. This corresponds to the state in which the cutting device can be raised and lowered, and when the ground height of the cutting part is equal to or higher than the predetermined height, the state in which the secondary cutting device is automatically raised to the storage position is the height of the main cutting device. This corresponds to a state in which the posture of the auxiliary cutting device is changed in conjunction with the position change.

特開平7−147828号公報JP-A-7-147828

上記従来構成によれば、主切断装置による刈高さ変更にかかわらず、副切断装置の刈高さを自動的に調節可能である点で有用であるものの、複数のポテンショメータや各種制御装置、ならびに制御用のアクチュエータを要するものであるため、副切断装置の調節作動を制御するための構造が複雑で、かつ高価な部品点数も多くて低コスト化が困難なものであった。また、副切断装置の高さ調整を主切断装置との相対位置の制御で行われるものであるため、実際の圃場面の凹凸状況などによっては、十分に茎稈を地面近くで切断し難い場合もある。   According to the above conventional configuration, although it is useful in that the cutting height of the auxiliary cutting device can be automatically adjusted regardless of the cutting height change by the main cutting device, a plurality of potentiometers and various control devices, and Since a control actuator is required, the structure for controlling the adjustment operation of the sub-cutting device is complicated, and the number of expensive parts is large, so that cost reduction is difficult. Also, because the height of the secondary cutting device is adjusted by controlling the relative position with the main cutting device, depending on the uneven conditions of the actual farm scene, etc. There is also.

本発明の目的は、主切断装置と副切断装置とを用いて植立茎稈の上下を切断可能に構成したコンバインにおいて、構造の簡素化及び低コスト化を図るようにしながらも、主切断装置の高さ位置変更にかかわらず独立して副切断装置が昇降自在である状態と、主切断装置の高さ位置変更に連動して副切断装置を姿勢変更させる状態とに切り換えることを、確実に行わせることができるコンバインを提供する点にある。   The purpose of the present invention is to combine the main cutting device and the auxiliary cutting device so that the upper and lower sides of the planted stalk can be cut, while simplifying the structure and reducing the cost, the main cutting device Surely switch between the state in which the sub-cutting device can be moved up and down independently regardless of the height position change and the state in which the position of the sub-cutting device is changed in conjunction with the change in the height position of the main cutting device. The point is to provide a combine that can be performed.

本発明に係るコンバインは、植立茎稈を刈り取る主切断装置と、その主切断装置よりも低い位置で前記植立茎稈を刈り取る副切断装置とが備えられたものであって、その第1特徴構成は、前記主切断装置が走行機体に上下揺動自在に装備させた刈取部に支持され、前記副切断装置が走行機体に上下揺動自在に装備させた昇降フレームに支持され、前記刈取部の昇降操作に連動して前記副切断装置が昇降する連係状態と、前記刈取部の昇降操作とは別に独立して前記副切断装置が昇降自在である連係解除状態とに切換操作自在な連係手段が備えられ、前記連係手段が、案内用の長孔が形成された案内部材、及び、前記長孔に沿って移動自在に係合案内される被案内体を、そのうちのいずれか一方を前記刈取部側に設け、他方を前記副切断装置側に設ける状態で備えて構成され、且つ、前記被案内体の前記長孔に沿う移動を牽制する連係用操作状態と前記被案内体の前記長孔に沿う移動を許容する連係解除用操作状態とに切り換え自在な切換操作体を、前記案内部材に備えて構成されている点にある。   The combine according to the present invention is provided with a main cutting device that cuts the planted stalk and a secondary cutting device that cuts the planted stalk at a position lower than the main cutting device. In the characteristic configuration, the main cutting device is supported by a cutting part that is mounted on a traveling machine body so as to be swingable up and down, and the sub-cutting device is supported by a lifting frame that is mounted on the traveling machine body so as to be swingable up and down. Linkage that can be switched between a linkage state in which the sub-cutting device moves up and down in conjunction with the lifting operation of the part and a linkage release state in which the sub-cutting device can be lifted and lowered independently of the lifting operation of the cutting unit Means, and the linkage means includes a guide member in which a guide slot is formed, and a guided body that is movably engaged and guided along the slot. Provided on the cutting part side, the other side is the auxiliary cutting device side An operation state for linkage which is configured to be provided in a state of being provided and which restrains movement of the guided body along the long hole and an operation state for release of linkage which allows movement of the guided body along the long hole. A switching operation body that can be switched is provided in the guide member.

第1特徴構成によれば、副切断装置を装備させる対象として、従来のように、走行機体に対して上下揺動自在に支持されている刈取部を選択したのではなく、走行機体側に上下揺動自在に装備させた昇降フレームを用いて、副切断装置を走行機体に対して直接的に上下揺動自在に支持される。又、主切断装置に対する副切断装置の昇降作動の連係状態を切換操作自在な連係手段が備えられるから、この連係手段を連係解除状態に切り換えると、副切断装置は、主切断装置が備えられる刈取部の揺動作動には関係せずに、主切断装置の高さ位置変更にかかわらず独立して副切断装置が昇降自在となる。
この状態では、刈取部の揺動作動にて主切断装置による刈高さの変更操作がなされても、これには関係なく副切断装置が独自に対地高さを設定する状態が得られるので、刈取部に対して副切断装置を支持させた従来構造のような、主切断装置の刈高さ変更に伴う副切断装置側での高さ変化を修正するための検出手段や制御手段を必要としない。
According to the first characteristic configuration, instead of selecting a cutting part supported to swing up and down with respect to the traveling machine body as a conventional object to be equipped with the auxiliary cutting device, The sub-cutting device is supported so as to be swingable up and down directly with respect to the traveling machine body using a lifting frame that is swingably mounted. In addition, since the linkage means that can switch the linkage state of the lifting operation of the sub cutting device with respect to the main cutting device is provided, when the linkage means is switched to the linkage releasing state, the sub cutting device is a cutting that is provided with the main cutting device. The sub-cutting device can be raised and lowered independently regardless of the height position change of the main cutting device regardless of the swinging operation of the part.
In this state, even if an operation for changing the cutting height by the main cutting device is performed by the swinging operation of the cutting unit, the state in which the auxiliary cutting device independently sets the ground height regardless of this is obtained. A detection means and a control means for correcting the height change on the side of the auxiliary cutting device accompanying the cutting height change of the main cutting device, such as the conventional structure in which the auxiliary cutting device is supported with respect to the cutting unit, are required. do not do.

又、副切断装置の昇降作動を主切断装置の昇降作動に連係させる必要が生じた場合には、連係手段を操作して、連係解除状態から連係状態に切換操作すると、畦越え走行時などに必然的に持ち上げ操作される主切断装置の作動に連動させて副切断装置も追従して上昇作動させることができ、各種使用形態に則した副切断装置の昇降作動を、特別な制御手段を要することなく行わせることができる。   Also, when it is necessary to link the lifting / lowering operation of the sub-cutting device to the lifting / lowering operation of the main cutting device, the linkage means is operated to switch from the linkage release state to the linkage state. The sub-cutting device can also be lifted by following the operation of the main cutting device that is inevitably lifted, and the lifting / lowering operation of the sub-cutting device in accordance with various types of use requires special control means. Can be done without.

つまり、主切断装置の高さ位置変更とは別に副切断装置が昇降自在である状態と、主切断装置の高さ位置変更に連動して副切断装置を姿勢変更させる状態との間での切り換えを行うことが可能でありながら、副切断装置の対機体姿勢や対地高さなどを検出するための各種のセンサ類、油圧シリンダ等のアクチュエータ、及び、アクチュエータを制御するための制御手段等を必要とせず、構造の簡素化や部品点数の削減を図り得る。   That is, switching between the state in which the secondary cutting device can be moved up and down separately from the change in the height position of the main cutting device and the state in which the posture of the secondary cutting device is changed in conjunction with the change in the height position of the main cutting device. It is necessary to have various sensors for detecting the attitude of the sub-cutting device relative to the machine body and the height to the ground, actuators such as hydraulic cylinders, and control means for controlling the actuators. Instead, the structure can be simplified and the number of parts can be reduced.

又、第1特徴構成によれば、案内部材に備えられた切換操作体が連係解除用操作状態に切り換えられると、被案内体が案内部材の長孔に沿う移動が許容されるから、案内部材と被案内体のうちの、いずれか一方が設けられる刈取部と、他方が設けられる副切断装置との間の相対移動が許容されることになり、主切断装置の高さ位置変更にかかわらず独立して副切断装置が昇降自在となる。一方、案内部材に備えられた切換操作体が連係用操作状態に切り換えられると、被案内体の案内部材の長孔に沿う移動が規制されるから、刈取部と副切断装置との間の相対移動が規制されることになり、刈取部の昇降作動に連動させて副切断装置も追従して昇降させることができる。   Further, according to the first characteristic configuration, when the switching operation body provided in the guide member is switched to the linkage release operation state, the guided body is allowed to move along the long hole of the guide member. And the guided body are allowed to move relative to the cutting part provided with one of them and the auxiliary cutting device provided with the other, regardless of the height position change of the main cutting device. The sub-cutting device can be moved up and down independently. On the other hand, when the switching operation body provided in the guide member is switched to the linkage operation state, the movement of the guided body along the long hole of the guide member is restricted. The movement is restricted, and the sub-cutting device can also be moved up and down following the lifting and lowering operation of the cutting unit.

このように、切換操作体を切り換え操作することによって、被案内体と案内部材との相対移動を許容する状態と、相対移動を規制して連動して昇降する状態とに切り換えるものであるから、簡素な構成でありながらも、主切断装置の高さ位置変更とは別に副切断装置が昇降自在である状態と、主切断装置の高さ位置変更に連動して副切断装置を姿勢変更させる状態とに切り換えることを、確実に行わせることができる。   Thus, by switching the switching operation body, it is switched between a state allowing the relative movement between the guided body and the guide member and a state where the relative movement is regulated and moved up and down in conjunction with each other. Although it has a simple configuration, the secondary cutting device can be moved up and down separately from the height position change of the main cutting device, and the posture of the secondary cutting device is changed in conjunction with the height position change of the main cutting device It is possible to surely perform switching to and.

従って、第1特徴構成によれば、構造の簡素化及び低コスト化を図るようにしながらも、主切断装置の高さ位置変更とは別に副切断装置が昇降自在である状態と、主切断装置の高さ位置変更に連動して副切断装置を姿勢変更させる状態とに切り換えることを、確実に行わせることができるコンバインを提供できるに至った。   Therefore, according to the first characteristic configuration, while simplifying the structure and reducing the cost, the state in which the auxiliary cutting device can be raised and lowered separately from the change in the height position of the main cutting device, and the main cutting device Thus, it has become possible to provide a combine that can surely switch the sub-cutting device to a state in which the posture of the sub-cutting device is changed in conjunction with the change in the height position.

本発明の第2特徴構成は、第1特徴構成に加えて、前記切換操作体が前記連係用操作状態に切り換えられると、前記長孔における連係用設定位置にて前記刈取部の上昇操作に伴う前記被案内体の移動を前記切換操作体が規制するように構成されるとともに、前記切換操作体が前記連係用操作状態に切り換えられている状態において、前記被案内体が前記連係用設定位置よりも前記刈取部の上昇操作側に移動している状態から前記連係用設定位置に向けて移動することを許容するように、前記切換操作体が前記後退変位自在並びに前記連係用操作状態に復帰付勢される状態で設けられている点にある。   According to a second feature configuration of the present invention, in addition to the first feature configuration, when the switching operation body is switched to the linkage operation state, the cutting portion is moved upward at the linkage setting position in the long hole. The switch operating body is configured to regulate movement of the guided body, and the guided body is moved from the link setting position in a state where the switch operating body is switched to the link operation state. In addition, the switching operation body can be moved backward and disengaged and returned to the linkage operation state so as to allow movement toward the linkage setting position from the state of moving to the lifting operation side of the cutting unit. It is in the point provided in the state where it is energized.

第2特徴構成によれば、被案内体が長孔における連係用設定位置に位置している状態で、切換操作体が連係用操作状態に切り換えられると、刈取部の上昇操作に伴う被案内体の移動が切換操作体によって規制され、刈取部と副切断装置との間の相対移動が規制されることになり、刈取部の上昇操作に連動させて副切断装置も追従して上昇させることができる。   According to the second characteristic configuration, when the switching operation body is switched to the linkage operation state in a state where the guided body is located at the linkage setting position in the long hole, the guided body accompanying the raising operation of the cutting unit is performed. Movement is restricted by the switching operation body, relative movement between the cutting part and the auxiliary cutting device is restricted, and the auxiliary cutting device can also be raised following the raising operation of the cutting part. it can.

そして、被案内体が長孔における連係用設定位置よりも刈取部の上昇操作側に移動している状態で、切換操作体が連係用操作状態に切り換えられると、刈取部の上昇操作に伴う被案内体の移動を規制することはできないが、この状態から刈取部を下降操作させると、それに伴って、被案内体が連係用設定位置よりも刈取部の上昇操作側に移動している状態から連係用設定位置に向けて移動しようとする。そうすると、被案内体により押し移動されて切換操作体が後退変位して被案内体が連係用設定位置に移動することができる。   When the guided body is moved to the ascending operation side of the cutting part from the linkage setting position in the long hole and the switching operation body is switched to the operating state for association, the guided body accompanying the ascending operation of the cutting part will be described. Although it is not possible to regulate the movement of the guide body, if the cutting part is lowered from this state, the guided body is moved from the linkage setting position to the raising operation side of the cutting part. Trying to move toward the linkage setting position. If it does so, it will be pushed and moved by the to-be-guided body, the switching operation body will move backwardly, and the to-be-guided body can move to the link setting position.

又、切換操作体は連係用操作状態に復帰付勢されているから、被案内体が連係用設定位置に移動した後は、連係用操作状態に自動で復帰することになり、その後は、刈取部の上昇操作に伴う被案内体の移動を規制する状態になる。そして、この状態では、刈取部と副切断装置との間の相対移動が規制されて、刈取部の上昇操作に連動させて副切断装置も追従して上昇させることができる。   Further, since the switching operation body is urged to return to the linkage operation state, after the guided body moves to the linkage setting position, it automatically returns to the linkage operation state. It will be in the state which controls the movement of the to-be-guided body accompanying the raising operation of a part. In this state, the relative movement between the cutting unit and the auxiliary cutting device is restricted, and the auxiliary cutting device can also be lifted following the raising operation of the cutting unit.

従って、被案内体が長孔における連係用設定位置よりも刈取部の上昇操作側に移動している状態で誤って切換操作体を連係用操作状態に切り換えることがあっても、刈取部を下降操作させるだけで、刈取部の上昇操作に伴う被案内体の移動を規制する状態に自動復帰させることができるものとなる。   Therefore, even if the switching body is mistakenly switched to the linkage operation state when the guided body is moved to the raising operation side of the cutting portion from the linkage setting position in the long hole, the cutting portion is lowered. It is possible to automatically return to a state in which movement of the guided body associated with the lifting operation of the cutting unit is restricted simply by operating.

本発明の第3特徴構成は、第1特徴構成又は第2特徴構成に加えて、前記切換操作体が、前記連係用操作状態と前記連係解除用操作状態とにわたり揺動自在に前記案内部材に支持され、且つ、トグルバネにより前記連係用操作状態及び前記連係解除用操作状態の夫々において弾性付勢力にて位置保持されるように構成されている点にある。   According to a third characteristic configuration of the present invention, in addition to the first characteristic configuration or the second characteristic configuration, the switching operation body is swingable between the operation state for linkage and the operation state for release of linkage in the guide member. It is supported and is configured to be held by an elastic biasing force in each of the linkage operation state and the linkage release operation state by a toggle spring.

第3特徴構成によれば、切換操作体を揺動操作することにより連係用操作状態と連係解除用操作状態とに切り換えることができ、しかも、切換操作体がトグルバネにより連係用操作状態及び連係解除用操作状態の夫々において弾性付勢力にて位置保持されるから、連係用操作状態と連係解除用操作状態のいずれに切り換えられていても、切換操作体を刈取作業に伴って発生する上下位置変動等に起因して誤って操作状態が切り換わるおそれのない状態で的確に位置保持させることができる。   According to the third characteristic configuration, the switching operation body can be switched between the linkage operation state and the linkage release operation state by swinging the switch operation body, and the switching operation body is switched to the linkage operation state and the linkage release by the toggle spring. Since the position is held by the elastic biasing force in each of the operation states, the vertical position fluctuation that occurs when the switching operation body is cut with the cutting operation regardless of whether the operation state is switched to the linkage operation state or the linkage release operation state. Thus, the position can be accurately held in a state where there is no possibility that the operation state is erroneously switched due to the above.

本発明の第4特徴構成は、第1特徴構成〜第3特徴構成のいずれかに加えて、前記被案内体に、環状溝形の凹部を備えた樹脂製の摺接案内体が外嵌装着され、前記摺接案内体の前記凹部に前記案内部材の長孔の内縁部が入り込み係合する状態で、前記被案内体が前記長孔に係合案内されるように構成されている点にある。   According to a fourth characteristic configuration of the present invention, in addition to any one of the first characteristic configuration to the third characteristic configuration, a resin sliding contact guide body having an annular groove-shaped recess is externally fitted to the guided body. The guide body is configured to be engaged and guided to the long hole in a state where the inner edge portion of the long hole of the guide member enters and engages with the concave portion of the sliding contact guide body. is there.

第4特徴構成によれば、樹脂製の摺接案内体の環状溝形の凹部に案内部材の長孔の内縁部が入り込み係合する状態で被案内体が長孔に沿って移動自在に係合案内される。このように樹脂製の摺接案内体にて案内されるから騒音の発生を少なくしながら、しかも、環状溝形の凹部に案内部材の長孔の内縁部が入り込み係合する状態であるから、抜け外れを防止した状態で被案内体を案内部材にて移動案内させることができる。   According to the fourth characteristic configuration, the guided body is movably engaged along the long hole while the inner edge of the long hole of the guide member enters and engages with the annular groove-shaped recess of the resin sliding guide body. You will be guided. Since it is guided by the sliding contact guide made of resin in this way, it is in a state where the inner edge portion of the elongated hole of the guide member enters and engages with the concave portion of the annular groove shape while reducing the generation of noise. The guided body can be moved and guided by the guide member in a state in which it is prevented from coming off.

本発明の第5特徴構成は、第1特徴構成〜第4特徴構成のいずれかに加えて、前記案内部材に、前記被案内体の前記刈取部の上昇操作に伴う移動の操作限界を規定する規制具が設けられている点にある。   According to a fifth feature configuration of the present invention, in addition to any one of the first feature configuration to the fourth feature configuration, the guide member defines an operation limit of movement associated with the raising operation of the cutting portion of the guided body. The restriction tool is provided.

第5特徴構成によれば、切換操作体が連係解除用操作状態に切り換えられている状態では、被案内体は切換操作体によって移動が規制されることがないので、案内部材の長孔に沿って移動することができるが、被案内体が刈取部の上昇操作に伴って移動するときは、案内部材に設けられた規制具によって規定される操作限界まで移動すると、それ以上の移動が規制されることになる。   According to the fifth characteristic configuration, in the state where the switching operation body is switched to the linkage release operation state, the guided body is not restricted by the switching operation body. However, when the guided body moves with the lifting operation of the cutting part, if the guided body moves to the operation limit defined by the restricting tool provided on the guide member, further movement is restricted. Will be.

又、切換操作体が連係解除用操作状態に切り換えられていても、刈取部を設定高さ以上にまで上昇させると、被案内体の長孔内での移動が規制されて、被案内体が案内部材と連動して移動操作されることにより、刈取部の上昇操作に連動して副切断装置が上昇することになる。   Even if the switching operation body is switched to the linkage release operation state, if the cutting part is raised to a set height or higher, the movement of the guided body in the long hole is restricted, and the guided body is When the moving operation is performed in conjunction with the guide member, the auxiliary cutting device is raised in conjunction with the raising operation of the cutting unit.

その結果、連係手段を連係解除状態に切り換えて、主切断装置にて植立穀稈の穂先部だけを刈り取るように上昇させ、且つ、副切断装置を植立穀稈の株元を切断するように低い位置に設定した作業形態で刈取作業を行っているような場合に、畦際に近づいたとき、連係手段を連係状態に切り換えなくても、主切断装置が畦と接触することを避けるために刈取部を大きく上昇させると、副切断装置も連動して上昇させることができる。   As a result, the linkage means is switched to the linkage-released state, the main cutting device is raised so as to cut only the tip of the planted cereal rice cake, and the sub-cutting device is cut off the planted grain rice cake stock. In order to prevent the main cutting device from coming into contact with the ridge without switching the linking means to the linkage state when approaching the heel when the cutting operation is performed in a work mode set to a low position. When the cutting part is greatly raised, the auxiliary cutting device can also be raised in conjunction.

従って、畦際に近づいたときに、運転者が連係手段を連係状態に切り換える操作を忘れても、主切断装置だけでなく副切断装置が畦との接触により損傷することを防止することが可能となる。   Therefore, even if the driver forgets to switch the linkage means to the linkage state when approaching the saddle, it is possible to prevent not only the main cutting device but also the secondary cutting device from being damaged by contact with the saddle. It becomes.

本発明の第6特徴構成は、第5特徴構成に加えて、前記規制具の前記案内部材に対する取り付け位置が前記長孔の長手方向に沿って変更調整可能に構成されている点にある。   The sixth characteristic configuration of the present invention is that, in addition to the fifth characteristic configuration, the attachment position of the restricting tool with respect to the guide member is configured to be adjustable in the longitudinal direction of the long hole.

第6特徴構成によれば、規制具の案内部材に対する取り付け位置を長孔の長手方向に沿って変更させることにより、連係解除用操作状態に切り換えられた状態において、刈取部の上昇操作に連動して副切断装置を上昇させる状態に切り換わるときの刈取部と副切断装置との高低差を変更させることができ、例えば、作業者の熟練度や圃場の畦の高さの違いなどの作業条件の違いに応じて適切なものに変更させることができ、使い勝手がよいものとなる。   According to the sixth characteristic configuration, by changing the attachment position of the restricting tool with respect to the guide member along the longitudinal direction of the long hole, in the state switched to the operation state for releasing the linkage, it is interlocked with the raising operation of the cutting part. The height difference between the cutting unit and the auxiliary cutting device when switching to the state in which the auxiliary cutting device is raised can be changed, for example, work conditions such as the skill level of the operator and the difference in the height of the field culm It can be changed to an appropriate one according to the difference between the two, making it easy to use.

本発明の第7特徴構成は、第5特徴構成又は第6特徴構成に加えて、前記案内部材が、中央の壁面部の両側に側板部を備えた断面略コの字状のチャンネル材にて構成され、且つ、前記中央の壁面部に前記長孔が形成され、前記規制具が、前記案内部材の両側の側板部に形成された貫通孔に亘って貫通する状態で設けられ、前記切換操作体が、前記連係用操作状態において前記案内部材の両側の側板部に形成された貫通孔に亘って貫通する状態で位置して、その貫通孔の端縁に接当して前記被案内体の前記長孔に沿う移動を規制するように構成されている点にある。   According to a seventh characteristic configuration of the present invention, in addition to the fifth characteristic configuration or the sixth characteristic configuration, the guide member is a channel material having a substantially U-shaped cross section having side plate portions on both sides of a central wall surface portion. The long hole is formed in the central wall surface portion, and the restricting tool is provided in a state of penetrating through the through holes formed in the side plate portions on both sides of the guide member, and the switching operation The body is positioned in a state of penetrating through the through holes formed in the side plate portions on both sides of the guide member in the linkage operation state, and is in contact with the edge of the through hole of the guided body. It exists in the point comprised so that the movement along the said long hole may be controlled.

第7特徴構成によれば、案内部材が断面略コの字状のチャンネル材にて構成されており、中央の壁面部に長孔が形成されているから、長孔に係合する被案内体は、断面略コの字状のチャンネル材の両側の側板部の間に位置することになる。   According to the seventh characteristic configuration, since the guide member is constituted by a channel material having a substantially U-shaped cross section and a long hole is formed in the central wall surface portion, a guided body that engages with the long hole. Is located between the side plate portions on both sides of the channel material having a substantially U-shaped cross section.

そして、規制具が、案内部材の両側の側板部に形成された貫通孔に亘って貫通する状態で設けられるから、一対の側板部の間に位置する被案内体の移動を規制するために規制具に掛かる力は、一対の側板部の夫々に形成された貫通孔によって受止めるので、案内部材は、両側の側板部にて均等した状態で力を受止めることにより、拗れのない安定した状態で被案内体に連動して移動することができる。   And since a control tool is provided in the state penetrated over the through-hole formed in the side plate part of the both sides of a guide member, it controls in order to control the movement of the to-be-guided body located between a pair of side plate part. Since the force applied to the tool is received by the through-holes formed in each of the pair of side plate portions, the guide member is stable without being swung by receiving the force in a uniform state on the side plate portions on both sides. It can move in conjunction with the guided body in the state.

又、切換操作体は、連係用操作状態において案内部材の側板部に形成された貫通孔に亘って貫通する状態で位置して、その貫通孔の端縁に接当して被案内体の長孔に沿う移動を規制することになる。つまり、一対の側板部の間に位置する被案内体の移動を規制するために切換操作体に掛かる力は、一対の側板部の夫々に形成された貫通孔によって受止めるので、案内部材は、両側の側板部にて均等した状態で力を受止めることにより、案内部材は拗れのない安定した状態で被案内体に連動して移動することができる。   Further, the switching operation body is positioned in a state of penetrating through a through hole formed in the side plate portion of the guide member in the linkage operation state, and comes into contact with the edge of the through hole so as to extend the length of the guided body. Movement along the hole will be restricted. That is, since the force applied to the switching operation body to restrict the movement of the guided body located between the pair of side plate portions is received by the through holes formed in each of the pair of side plate portions, the guide member is By receiving the force in a uniform state at the side plate portions on both sides, the guide member can move in conjunction with the guided body in a stable state without any turning.

このように、連係用操作状態及び連係解除用操作状態のいずれの状態であっても、案内部材は拗れのない安定した状態で被案内体に連動して移動することができ、案内部材の変形等の生じ難い状態で良好に連動操作を行うことができる。   In this way, the guide member can move in conjunction with the guided body in a stable state without being twisted in any of the linkage operation state and the linkage release operation state. The interlocking operation can be performed satisfactorily in a state in which deformation or the like hardly occurs.

コンバインの全体側面図である。It is a whole side view of a combine. コンバインの全体平面図である。It is a whole top view of a combine. 副切断装置、連動機構、搭乗運転部、搬送機構を示す正面図である。It is a front view which shows a sub cutting device, an interlocking mechanism, a boarding operation part, and a conveyance mechanism. 副切断装置、連動機構、搬送機構を示す平面図である。It is a top view which shows a sub cutting device, an interlocking mechanism, and a conveyance mechanism. 左側昇降フレームと副切断装置の駆動構造を示す左側面図である。It is a left view which shows the drive structure of a left raising / lowering flame | frame and a sub cutting device. 中央側昇降フレームと、その中央側昇降フレームと走行機体との間に設けた付勢手段を示す左側面図である。It is a left view which shows the biasing means provided between the center side raising / lowering frame and its center side raising / lowering frame, and a traveling body. 右側昇降フレームを示す右側面図である。It is a right view which shows a right raising / lowering flame | frame. 3本の昇降フレームと副切断装置を示す平面図である。It is a top view which shows three raising / lowering frames and a sub cutting device. 副切断装置の一部を示す平面図である。It is a top view which shows a part of sub cutting device. 副切断装置の縦断した左側面図である。It is the left view which longitudinally cut the sub cutting device. 橇を示す斜視図である。It is a perspective view which shows a bag. 昇降フレーム用カバー体の横断平面図である。It is a cross-sectional top view of the cover body for raising / lowering frames. 副切断装置に対する偏芯駆動ユニットを示す縦断正面図である。It is a vertical front view which shows the eccentric drive unit with respect to a sub cutting device. 副切断装置に対する偏芯駆動ユニットを示す一部切り欠き側面図である。It is a partially notched side view which shows the eccentric drive unit with respect to a sub cutting device. 連係機構を示す左側面図である。It is a left view which shows a linkage mechanism. 連係機構を示す正面図である。It is a front view which shows a linkage mechanism. 案内部材とガイド軸との係合状態を示す断面図である。It is sectional drawing which shows the engagement state of a guide member and a guide shaft. 連係機構の作用説明図である。It is operation | movement explanatory drawing of a linkage mechanism. 連係機構が連係状態であるときのコンバインの全体側面図である。It is a whole side view of a combine when a linkage mechanism is a linkage state.

以下、本発明の実施の形態を図面に基づいて説明する。
図1にはコンバインの全体側面が示されており、このコンバインは、走行装置としての左右一対のクローラ式走行装置1の駆動で走行する走行機体2の前部に、刈取対象穀稈を刈り取って後方に向けて搬送する刈取部としての刈取搬送装置3を左右向きの第1軸心X1周りに上下揺動可能に連結し、その刈取搬送装置3からの刈取対象穀稈に対して脱穀処理を施すとともに、この脱穀処理で得られた処理物に対して選別処理を施す脱穀装置4や、この脱穀装置4からの穀粒を貯留する穀粒タンク5などを走行機体2に搭載し、走行機体2における穀粒タンク5の前方箇所に搭乗運転部6を形成して、稲や麦などを刈取対象穀稈とした全稈投入型に構成されている。
Hereinafter, embodiments of the present invention will be described with reference to the drawings.
FIG. 1 shows an overall side view of a combine. This combine harvests a harvesting culm at the front of a traveling machine body 2 that is driven by a pair of left and right crawler traveling devices 1 as traveling devices. A cutting and conveying device 3 serving as a cutting unit that conveys backward is connected to the left and right first axis X1 so as to be swingable up and down, and a threshing process is performed on the harvested culm from the cutting and conveying device 3 The threshing device 4 that performs a sorting process on the processed product obtained by the threshing process and the grain tank 5 that stores the grain from the threshing device 4 are mounted on the traveling machine body 2, and the traveling machine body The boarding operation part 6 is formed in the front part of the grain tank 5 in 2, and it is comprised by the whole straw throwing type | mold which used rice, wheat, etc. as the harvesting grain straw.

図1及び図2に示すように、刈取搬送装置3は、走行機体2の走行に伴って、その前部左右両端に装備されたデバイダ7が刈取対象穀稈と非刈取対象穀稈とを梳き分け、刈取搬送装置3の前部上方に配備された回転リール8が、左右のデバイダ7で梳き分けられた刈取対象穀稈を後方に向けて掻き込み、刈取搬送装置3の底部に装備されたバリカン形の主切断装置9が刈取対象穀稈の所定箇所を切断し、主切断装置9の後方に配備されたオーガ10が、主切断装置9による切断後の刈取対象穀稈を左右方向の所定箇所に寄せ集めるとともに、その所定箇所において後方に向けて送り出し、その所定箇所から脱穀装置4の前上部にわたる搬送装置としての搬送機構11が、オーガ10からの刈取対象穀稈を脱穀装置4に向けて搬送するように構成され、その搬送機構11と走行機体2とにわたって架設した油圧式のシリンダ12の作動で左右向き第1軸心X1周りに上下揺動し、その上下揺動で、刈取対象穀稈に対する主切断装置9の高さ位置を変更する刈り高さ調節を行えるようになっている。   As shown in FIG. 1 and FIG. 2, the cutting and conveying apparatus 3 is configured such that the dividers 7 provided on the left and right ends of the front part whip the harvesting target culm and the non-reaching target culm as the traveling machine body 2 travels. The rotary reel 8 provided above the front part of the cutting and conveying device 3 is equipped with the bottom of the cutting and conveying device 3 by scraping the harvested culm separated by the left and right dividers 7 backward. The clipper-shaped main cutting device 9 cuts a predetermined portion of the cropping target culm, and the auger 10 provided behind the main cutting device 9 determines the chopping target culm after cutting by the main cutting device 9 in the left-right direction. While gathering to a location, it sends out toward the rear at the predetermined location, and the transport mechanism 11 as a transport device extending from the predetermined location to the front upper part of the threshing device 4 directs the harvested culm from the auger 10 to the threshing device 4 Transport Then, the hydraulic cylinder 12 installed over the transport mechanism 11 and the traveling machine body 2 is swung up and down around the first axial center X1 in the left-right direction. The cutting height adjustment for changing the height position of 9 can be performed.

そして、刈取搬送装置3の下方側には、主切断装置9よりも低い位置で植立穀稈を刈り取るバリカン型の刈取装置からなる副切断装置14を、走行機体2に上下揺動自在に装備させた三本の昇降フレーム13A,13B,13Cに支持される状態で備えてある。   Further, on the lower side of the cutting and conveying device 3, a sub-cutting device 14, which is a clipper-type cutting device that cuts the planted cereal at a position lower than the main cutting device 9, is mounted on the traveling machine body 2 so as to swing up and down. The three elevating frames 13A, 13B, and 13C are provided so as to be supported.

次に、バリカン型の副切断装置14の支持構造について説明する。
図2〜図4に示すように、走行機体2の前端上面に左右向きの角パイプ製の横向きフレーム16を架設してある。横向きフレーム16は、ミッションケース24を挟んで左側に位置する左側フレーム部16Aとミッションケース24より右側に位置する右側フレーム部16Bとで分離して設けてあり、左側フレーム部16Aの両端近傍の二箇所と、右側フレーム部16Bの右側端との3箇所に軸受部17を備えている。
図6及び図7に示すように、軸受部17は右側及び左側フレーム部16A、16Bに取付られる脚部17Aと、その脚部17Aと一体形成されたボス部17Bとからなり、ボス部17Bにニードルベアリングを介して筒状軸18を揺動自在に装着してある。
Next, the support structure of the clipper-type auxiliary cutting device 14 will be described.
As shown in FIG. 2 to FIG. 4, a horizontal frame 16 made of a square pipe facing left and right is installed on the upper surface of the front end of the traveling machine body 2. The horizontal frame 16 is provided separately by a left frame portion 16A located on the left side with the mission case 24 in between and a right frame portion 16B located on the right side of the mission case 24, and two frames in the vicinity of both ends of the left frame portion 16A. The bearing portions 17 are provided at three locations of the location and the right end of the right frame portion 16B.
As shown in FIGS. 6 and 7, the bearing portion 17 includes a leg portion 17A attached to the right and left frame portions 16A and 16B, and a boss portion 17B integrally formed with the leg portion 17A. A cylindrical shaft 18 is swingably mounted through a needle bearing.

横向きフレーム16における軸受部17に対する取付部位に、板状の受ブラケット16aを取り付けてあり、この受ブラケット16aに対して軸受部17の脚部17Aをボルト15で締め付け固定し、軸受部17を横向きフレーム16に対して着脱自在に構成してある。   A plate-shaped receiving bracket 16a is attached to a mounting portion of the sideways frame 16 with respect to the bearing portion 17, and the leg portion 17A of the bearing portion 17 is fastened and fixed to the receiving bracket 16a with a bolt 15 so that the bearing portion 17 is turned sideways. The frame 16 is configured to be detachable.

3つの軸受部17の夫々における筒状軸18は、軸受部17のボス部17Bより第2軸芯X2に沿って横向きに突出し、その突出部分に昇降フレーム13A,13B,13Cを夫々連結固定してある。左右方向の3箇所で軸受部17に支持された中央側昇降フレーム13A、右側昇降フレーム13B、左側昇降フレーム13Cを機体前方に向けて延出し、中央側昇降フレーム13A、右側昇降フレーム13B、左側昇降フレーム13Cを上下揺動可能に構成してある。   The cylindrical shaft 18 in each of the three bearing portions 17 protrudes laterally along the second axis X2 from the boss portion 17B of the bearing portion 17, and the lifting frames 13A, 13B, and 13C are connected and fixed to the protruding portions, respectively. It is. The center lifting frame 13A, the right lifting frame 13B, and the left lifting frame 13C supported by the bearing portion 17 at three locations in the left and right direction extend toward the front of the machine, and the center lifting frame 13A, the right lifting frame 13B, and the left lifting The frame 13C is configured to be vertically swingable.

3つの昇降フレーム13A,13B,13Cの内の走行機体幅方向の略中央に位置する中央側昇降フレーム13Aの構造について説明する。
中央側昇降フレーム13Aは、筒状軸18に一体連結され、刈取搬送装置3とその下方に位置する車軸ケース25との間に位置して、ボス部17Bから斜め下向きに直線状に延びる直線状フレーム部分13aと、その直線状フレーム部分13aの先端部から車軸ケース25の前方側で下向きに湾曲状に延出される湾曲状フレーム部分13bとを備えて構成してある。
The structure of the center side lifting frame 13A located at the approximate center in the traveling machine body width direction among the three lifting frames 13A, 13B, 13C will be described.
The central elevating frame 13A is integrally connected to the cylindrical shaft 18 and is positioned between the cutting and conveying device 3 and the axle case 25 positioned below the central lifting frame 13A, and extends linearly downward from the boss portion 17B. The frame portion 13a and a curved frame portion 13b that extends downward from the front end portion of the axle case 25 from the front end portion of the linear frame portion 13a are provided.

つまり、図6に示すように、中央側昇降フレーム13Aは、搬送機構11とその搬送機構11の下方に位置する車軸ケース25との間に位置して直線状に延びる直線状フレーム部分13aと、その直線状フレーム部分13aの先端部から車軸ケース25の前方側で下向きに湾曲状に延出される湾曲状フレーム部分13bとを、単一のフレーム材を曲げ加工にて形成する状態で構成してある。又、中央側昇降フレーム13Aは、湾曲状フレーム部分13bの下端から前方側に延出される前向きフレーム部分13cを備えている。   That is, as shown in FIG. 6, the central elevating frame 13 </ b> A is positioned between the transport mechanism 11 and the axle case 25 positioned below the transport mechanism 11, and extends linearly. A curved frame portion 13b that extends downward from the front end portion of the linear frame portion 13a in a curved manner on the front side of the axle case 25 is configured in a state in which a single frame material is formed by bending. is there. Further, the central lifting frame 13A includes a forward frame portion 13c that extends forward from the lower end of the curved frame portion 13b.

説明を加えると、前記直線状フレーム部分13aと前記湾曲状フレーム部分13bとを、単一のフレーム材を曲げ加工にて形成する状態で構成され、直線状フレーム部分13aと湾曲状フレーム部分13bとは、屈曲するのではなく滑らかに湾曲する状態で連なっているのであり、例えば、副切断装置14が畦に接触して、機体後方側に向かう力が作用しても、内部応力が局所的に集中することがないので損傷し難いものになる。   In other words, the straight frame portion 13a and the curved frame portion 13b are formed by bending a single frame material, and the straight frame portion 13a and the curved frame portion 13b are formed. Are connected in a smoothly curved state rather than bent. For example, even if the auxiliary cutting device 14 contacts the heel and a force toward the rear side of the body acts, the internal stress is locally It is difficult to damage because it does not concentrate.

なお、直線状フレーム部分13aの上面には、受フレーム49が設けてあり、受フレーム49が搬送機構11の搬送ケース11Aの下面に当接することによって、副切断装置14とオーガ10の底板とが接触することを防止している。   A receiving frame 49 is provided on the upper surface of the linear frame portion 13a, and the receiving frame 49 abuts on the lower surface of the transport case 11A of the transport mechanism 11, so that the auxiliary cutting device 14 and the bottom plate of the auger 10 are connected. Preventing contact.

三本の昇降フレーム13A,13B,13Cのうちの走行機体横幅方向の右側に位置する右側昇降フレーム13Bは、右側の走行装置の右側外方側箇所を機体前方に向かって延びる基端側フレーム部13dと、その基端側フレーム部分13dの先端から右側の走行装置1の前方側外方側箇所を機体横幅方向中央側に向かって延びる横向きフレーム部13e、その横向きフレーム部分13eの先端から機体前方に向かって延びる前後向きフレーム部13fとで構成してある。   Of the three lifting frames 13A, 13B, and 13C, the right lifting frame 13B located on the right side in the lateral width direction of the traveling vehicle body is a base frame portion that extends toward the front of the vehicle body at the right outer side portion of the right traveling device. 13d, a lateral frame portion 13e extending from the distal end of the base end side frame portion 13d to the front outer side portion of the right traveling device 1 toward the center side in the lateral direction of the vehicle body, and from the distal end of the lateral frame portion 13e to the front of the vehicle body And a front-rear frame portion 13f extending toward the front.

すなわち、図3、図7及び図8に示すように、右側昇降フレーム13Bを平面視でクランク状に屈曲させてあり、このように屈曲させることで、副切断装置14の走行機体横幅方向の右側端部が、走行機体2の前後方向視において右側の走行装置1の右側端部の位置と略同じ位置になり、畦際に沿って刈取作業するときに、副切断装置14が畦側の地面に接触することを回避し易いようにしている。   That is, as shown in FIGS. 3, 7, and 8, the right elevating frame 13 </ b> B is bent in a crank shape in plan view, and by bending in this way, the right side of the traveling machine body in the lateral width direction of the auxiliary cutting device 14. When the end portion is substantially the same as the position of the right end portion of the right traveling device 1 in the front-rear direction of the traveling machine body 2, when the cutting operation is performed along the heel, the auxiliary cutting device 14 is on the ground on the heel side. It is easy to avoid touching.

尚、図5に示すように、三本の昇降フレーム13A,13B,13Cのうちの走行機体横幅方向の左側に位置する左側昇降フレーム13Cは、斜め下向きに直線状に延出される単一のフレーム部で構成してある。   As shown in FIG. 5, of the three lifting frames 13A, 13B, and 13C, the left lifting frame 13C located on the left side in the horizontal direction of the traveling machine body is a single frame that extends linearly obliquely downward. It consists of parts.

そして、副切断装置14を上向き付勢する付勢手段Aが、中央側昇降フレーム13Aにおける直線状フレーム部分13aに作用する状態で設けられている。   And the urging means A which urges | biases the sub cutting device 14 upward is provided in the state which acts on the linear frame part 13a in 13 A of center side raising / lowering frames.

図6に示すように、付勢手段Aは、圧縮コイルバネ19と、圧縮コイルバネ19の軸線位置に位置する支持ボルト軸20と、支持ボルト軸20の下端に螺合するホルダー21と、圧縮コイルバネ19の上下端を受け止める上下受ディスク22A、22Bとで構成してある。又、下受ディスク22Bを支持するアングル状の受フレーム23を走行機体2の上下向き姿勢の前端フレーム2Aから前方に向けて延出し、受フレーム23の前端部を、ミッションケース24から左右クローラ式走行装置1の駆動スプロケット1Aに向けて延出された車軸ケース25に支持させている。   As shown in FIG. 6, the urging means A includes a compression coil spring 19, a support bolt shaft 20 positioned at the axial position of the compression coil spring 19, a holder 21 screwed into the lower end of the support bolt shaft 20, and the compression coil spring 19. The upper and lower receiving disks 22A and 22B receive the upper and lower ends of the upper and lower ends. An angle-shaped receiving frame 23 that supports the lower receiving disk 22B extends forward from the front end frame 2A of the traveling machine body 2 in the vertical orientation, and the front end portion of the receiving frame 23 extends from the mission case 24 to the left and right crawler type. It is supported by an axle case 25 that extends toward the drive sprocket 1 </ b> A of the traveling device 1.

受フレーム23に下受ディスク22Bを載置し、下受ディスク22Bの軸芯位置に支持ボルト軸20の下端に外嵌したホルダー21を内嵌保持してある。ホルダー21を介して下受ディスク22Bに支持された支持ボルト軸20は、中央側昇降フレーム13Aに向けて上向きに延出され、延出上端位置に上受ディスク22Aを装着してある。   The receiving disk 22B is placed on the receiving frame 23, and a holder 21 that is externally fitted to the lower end of the support bolt shaft 20 is held in the axial position of the receiving disk 22B. The support bolt shaft 20 supported by the lower receiving disk 22B via the holder 21 extends upward toward the central lifting frame 13A, and the upper receiving disk 22A is mounted at the extended upper end position.

中央側昇降フレーム13Aの下面には皿状の受止具26が装着してあり、受止具26には調節ボルト27が取り付けてある。調節ボルト27の下端ボルト頭27Aを、支持ボルト軸20の上端ボルト頭20Aに当接させて、中央側昇降フレーム13Aを前記した圧縮式コイルバネ19で押し上げ付勢してある。調節ボルト27を受止具26に対して上下方向に出退調節させることによって、上受ディスク22Aとの当接位置を調節し、圧縮式コイルバネ19の押し上げ付勢力を調節可能である。
尚、3つの軸受部17を横向きフレーム16より取り外すと、3つの昇降フレーム13A,13B,13C及び副切断装置14を含む全体を軸受部17と共に取外すことができ、又、再度、取り付けることも可能である。
A dish-shaped receiving device 26 is attached to the lower surface of the central lifting frame 13A, and an adjusting bolt 27 is attached to the receiving device 26. The lower end bolt head 27 </ b> A of the adjustment bolt 27 is brought into contact with the upper end bolt head 20 </ b> A of the support bolt shaft 20, and the center side lifting frame 13 </ b> A is pushed up and biased by the compression coil spring 19 described above. By adjusting the adjusting bolt 27 to move up and down in the vertical direction with respect to the receiving member 26, the position of contact with the upper receiving disk 22A can be adjusted, and the pushing-up biasing force of the compression coil spring 19 can be adjusted.
When the three bearing portions 17 are removed from the lateral frame 16, the entire assembly including the three lifting frames 13A, 13B, 13C and the auxiliary cutting device 14 can be removed together with the bearing portion 17, and can be attached again. It is.

副切断装置14を駆動する偏芯駆動ユニットCは左側に位置する軸受部17に支持されており、駆動ロッド軸44、ベアリングブロック46、揺動駆動アーム47は左側昇降フレーム13Cに取り付けてある。   The eccentric drive unit C for driving the auxiliary cutting device 14 is supported by the bearing portion 17 located on the left side, and the drive rod shaft 44, the bearing block 46, and the swing drive arm 47 are attached to the left lifting frame 13C.

次に、副切断装置14の構造について説明する。図5〜図10に示すように、副切断装置14は、機体横幅方向にわたって延びる連結フレーム15に背中合わせで取付固定されているアングル状の基台29と、基台29に装着された受け刃30と、受け刃30に支持されている可動刃31と、可動刃31を駆動するナイフバー32と、ナイフバー32を保持するナイフクリップ33とで構成されている。   Next, the structure of the auxiliary cutting device 14 will be described. As shown in FIGS. 5 to 10, the sub-cutting device 14 includes an angle-shaped base 29 that is attached and fixed back to back on a connecting frame 15 that extends across the body width direction, and a receiving blade 30 that is attached to the base 29. And a movable blade 31 supported by the receiving blade 30, a knife bar 32 that drives the movable blade 31, and a knife clip 33 that holds the knife bar 32.

連結フレーム15の下向き面には橇48が後に張り出す状態で取り付けてあり、刈取り面の凹凸に副切断装置14が追従しやすくなるように構成してある。橇48は、連結フレーム15の横方向3箇所に設けてあり、各昇降フレーム13A,13B,13Cの下方に設けてある。   A hook 48 is attached to the downward surface of the connecting frame 15 so as to project later, and the sub-cutting device 14 can easily follow the unevenness of the cutting surface. The hooks 48 are provided at three positions in the lateral direction of the connecting frame 15 and are provided below the elevating frames 13A, 13B, and 13C.

図9及び図10に示すように、副切断装置14の可動刃31には、それに一体的に往復移動する状態で、刈り取った茎稈を機体横幅方向一方側へ送り出すための穀稈横送り部材34が取り付けられている。この穀稈横送り部材34は、機体横幅方向に長尺の板状体を後方側ほど上方に位置する斜め姿勢で可動刃31にボルトで連結してあり、可動刃31と一体的に往復移動する状態で設けてある。この穀稈横送り部材34には上部側に鋸歯状の送り作用部を形成してあり、往復移動することで刈り取った茎稈を機体横幅方向一方側へ送り出すことができるように構成されている。   As shown in FIGS. 9 and 10, the movable blade 31 of the sub-cutting device 14 has a cereal cross feed member for feeding the cut stalk to one side in the width direction of the machine body in a state of reciprocating integrally with the movable blade 31. 34 is attached. This grain straw transverse feed member 34 is connected to the movable blade 31 with a bolt in an oblique posture in which the long plate-like body in the lateral width direction of the machine body is positioned upward toward the rear side, and reciprocally moves integrally with the movable blade 31. It is provided in the state to do. The corn straw horizontal feed member 34 is formed with a sawtooth-shaped feed action portion on the upper side, and is configured so as to be able to feed the stem stalk harvested by reciprocating movement to one side in the lateral width direction of the machine body. .

又、副切断装置14には、切断した茎稈が引っかかり堆積するのを防止するための種々の分草カバー体28を設けてある。
つまり、連結フレーム15の上方側の空間に茎稈が滞留するために設けられる連結フレーム用カバー体28A、切断された茎稈が前向きフレーム部分13cと湾曲状フレーム部分13bとの折れ曲がり箇所に引っ掛かり堆積することを防止する昇降フレーム用カバー体28Bとを設けてある。
Further, the auxiliary cutting device 14 is provided with various weed cover bodies 28 for preventing the cut stems from being caught and accumulated.
That is, the connecting frame cover body 28A provided for the stalks to stay in the space above the connection frame 15, and the cut stalks are caught by the bent portions of the forward frame portion 13c and the curved frame portion 13b. An elevating frame cover body 28B is provided to prevent this.

図9及び図10に示すように、連結フレーム用カバー体28Aは基台29に支持してあり、図6、図8、図9及び図12に示すように、昇降フレーム用カバー体28Bは、前向きフレーム部分13cの上部側前端側箇所と湾曲状フレーム部分13bの上部側箇所とにわたって斜め姿勢になり、且つ、断面形状が山形となる形態で、各フレーム部分13b、13cに固定する状態で設けられている。   As shown in FIGS. 9 and 10, the connecting frame cover body 28A is supported on the base 29, and as shown in FIGS. 6, 8, 9 and 12, the lifting frame cover body 28B is Provided in a state of being inclined to the upper front end portion of the forward frame portion 13c and the upper portion of the curved frame portion 13b and being fixed to the frame portions 13b and 13c in a form in which the cross-sectional shape is a mountain shape. It has been.

副切断装置14の可動刃31に対する伝動機構Eについて説明する。
図13に示すように、3個の軸受部17における左端に位置する軸受部17に支持された筒状軸18の内部空間に、左右一対の転がりベアリング35を内装してあり、左右の転がりベアリング35に亘って駆動軸36を支承してある。駆動軸36における筒状軸18より突出する片持ち端部36Aには、入力スプロケット37を取り付けた回転ボス38が取り付けてあり、入力スプロケット37の取付位置より更に片持ち先端部分に偏芯駆動ユニットCを取り付けてある。
The transmission mechanism E for the movable blade 31 of the auxiliary cutting device 14 will be described.
As shown in FIG. 13, a pair of left and right rolling bearings 35 are housed in the internal space of the cylindrical shaft 18 supported by the bearing portion 17 located at the left end of the three bearing portions 17, and the left and right rolling bearings are provided. A drive shaft 36 is supported over 35. A rotating boss 38 to which an input sprocket 37 is attached is attached to a cantilever end portion 36A of the drive shaft 36 that protrudes from the cylindrical shaft 18. C is attached.

偏芯駆動ユニットCは、駆動軸36に偏芯した状態で取付固定された回転コア部39と、回転コア部39に大ベアリング40を介して外嵌装着されている揺動ホルダー部41と、揺動ホルダー部41の上下両端軸41Aに小ベアリング42を介して装着されている駆動フォーク部43とからなっている。   The eccentric drive unit C includes a rotary core portion 39 that is attached and fixed in an eccentric state to the drive shaft 36, a swing holder portion 41 that is externally fitted to the rotary core portion 39 via a large bearing 40, The swing fork part 41 is composed of a drive fork part 43 mounted on the upper and lower end shafts 41 </ b> A via small bearings 42.

駆動軸36に取付られている回転コア部39は駆動軸36と一体回転するが偏芯状態にあるために、回転コア部39に大ベアリング40を介して外嵌されている揺動ホルダー部41は、矢印(a―b)で示すように、駆動軸36の回転軸芯に直交する軸芯周りで左右に揺動可能に駆動される。そして、この揺動ホルダー部41の上下両端軸に外嵌されている駆動フォーク部43も連動して左右に揺動可能に振れ作動する。このように、偏芯駆動ユニットCによって、駆動軸36の回転運動を駆動ロッド軸44の左右往復運動に変換する回転変換機構が構成されている。   The rotary core portion 39 attached to the drive shaft 36 rotates integrally with the drive shaft 36 but is in an eccentric state, so that the swinging holder portion 41 is fitted on the rotary core portion 39 via a large bearing 40. Is driven to swing left and right around an axis perpendicular to the rotational axis of the drive shaft 36, as indicated by arrows (ab). The drive fork portion 43 that is externally fitted to the upper and lower end shafts of the swing holder portion 41 also swings so as to swing left and right in conjunction with the drive fork portion 43. In this way, the eccentric drive unit C constitutes a rotation conversion mechanism that converts the rotational motion of the drive shaft 36 into the left-right reciprocating motion of the drive rod shaft 44.

図2〜図5に示すように、駆動フォーク部43には前方下向き姿勢の駆動ロッド軸44が取付固定され、この駆動ロッド軸44を副切断装置14の近傍まで延出してある。左側昇降フレーム13Cの下端部から駆動ロッド軸44に向けて取付台45を延出してあり、取付台45の先端側に固定されたベアリングブロック46が駆動ロッド軸44の先端部を回転自在に支持している。
このような構成によって、駆動ロッド軸44は、駆動フォーク部43の左右揺動に連動して、駆動ロッド軸44自体の軸芯Z周りで揺動自在に構成されている。
As shown in FIGS. 2 to 5, the drive fork portion 43 is fixedly attached with a drive rod shaft 44 in a forward and downward posture, and the drive rod shaft 44 extends to the vicinity of the auxiliary cutting device 14. A mounting base 45 extends from the lower end of the left elevating frame 13C toward the drive rod shaft 44, and a bearing block 46 fixed to the front end side of the mounting base 45 rotatably supports the front end of the drive rod shaft 44. is doing.
With such a configuration, the drive rod shaft 44 is configured to be swingable around the axis Z of the drive rod shaft 44 itself in conjunction with the left-right swing of the drive fork portion 43.

駆動ロッド軸44のベアリングブロック46より下方に突出する下端部に揺動駆動アーム47が取付固定され、この揺動駆動アーム47から延出したアーム連係部47Aが可動刃用のナイフバー33に連係されている。   A swing drive arm 47 is attached and fixed to a lower end portion of the drive rod shaft 44 that projects downward from the bearing block 46, and an arm linkage portion 47 </ b> A extending from the swing drive arm 47 is linked to the knife bar 33 for the movable blade. ing.

以上のような構成によって、可動刃31は、偏芯駆動ユニットCの入力スプロケット37、駆動軸36、回転コア部39、揺動ホルダー部41、駆動フォーク部43、駆動ロッド軸44、揺動駆動アーム47、アーム連係部47Aを介して伝達された駆動力によって左右に往復駆動される。
従って、これらの部材によって副切断装置14に対する伝動機構Eが構成されており、この伝動機構Eは、左側昇降フレーム13Cに備えられている。
With the configuration as described above, the movable blade 31 has the input sprocket 37, the drive shaft 36, the rotary core portion 39, the swing holder portion 41, the drive fork portion 43, the drive rod shaft 44, the swing drive of the eccentric drive unit C. It is reciprocated to the left and right by the driving force transmitted through the arm 47 and the arm linkage portion 47A.
Therefore, the transmission mechanism E with respect to the sub cutting device 14 is comprised by these members, and this transmission mechanism E is provided in the left raising / lowering flame | frame 13C.

刈取搬送装置3の昇降操作に連動して副切断装置14が昇降する連係状態と、刈取搬送装置3の昇降操作とは別に独立して副切断装置14が昇降自在である連係解除状態とに切換操作自在な連係手段としての連係機構Bを備えている。   Switching between a linked state in which the auxiliary cutting device 14 moves up and down in conjunction with the lifting and lowering operation of the cutting and conveying device 3 and a linkage release state in which the auxiliary cutting device 14 can move up and down independently of the lifting and lowering operation of the cutting and conveying device 3 A linkage mechanism B is provided as an operable linkage means.

以下、連係機構Bについて説明する。
この連係機構Bは、図1、図3、図15及び図16に示すように、案内用の長孔50が形成された案内部材51を副切断装置14側に設け、長孔50に沿って移動自在に係合案内される被案内体としてのガイド軸52を刈取搬送装置3側に設ける状態で備えて構成され、且つ、ガイド軸52の長孔50に沿う移動を牽制する連係用操作状態とガイド軸52の長孔50に沿う移動を許容する連係解除用操作状態とに切り換え自在な切換操作体53を案内部材51に備える状態で構成される。
Hereinafter, the linkage mechanism B will be described.
As shown in FIGS. 1, 3, 15, and 16, this linkage mechanism B is provided with a guide member 51 in which a guide long hole 50 is formed on the side of the auxiliary cutting device 14, and along the long hole 50. Linking operation state in which a guide shaft 52 as a guided body that is movably engaged and guided is provided on the cutting and conveying device 3 side, and the movement along the long hole 50 of the guide shaft 52 is restrained. The guide member 51 is provided with a switching operation body 53 that can be switched between a linkage releasing operation state that allows movement of the guide shaft 52 along the long hole 50.

具体的には、図2〜図4に示すように、三つの昇降フレーム13A,13B,13Cのうちの中央側昇降フレーム13Aと搬送機構11の搬送ケース11Aとにわたり、連係機構Bを取り付けてあり、この連係機構Bは、上下方向に長尺の案内部材51を備えている。図6に示すように、案内部材51の下端部は、中央側昇降フレーム13Aに固定されたレバー支軸54に取り付けられている。   Specifically, as shown in FIGS. 2 to 4, the linkage mechanism B is attached across the central lifting frame 13 </ b> A of the three lifting frames 13 </ b> A, 13 </ b> B, and 13 </ b> C and the transport case 11 </ b> A of the transport mechanism 11. The linkage mechanism B includes a guide member 51 that is long in the vertical direction. As shown in FIG. 6, the lower end portion of the guide member 51 is attached to a lever support shaft 54 fixed to the central lifting frame 13A.

図3に示すように、案内部材51は、上部側に位置する断面略コの字形の案内作用部51Aと、下部側に位置する角筒状の連結支持部51Bとを一体的に連結してあり、図15及び図16に示すように、案内作用部51Aは、中央の壁面部51aの両側に側板部51b、51bを備えた断面略コの字状のチャンネル材にて構成してあり、中央の壁面部51aに上下方向に沿う長孔50を形成してある。   As shown in FIG. 3, the guide member 51 is formed by integrally connecting a guide action part 51A having a substantially U-shaped cross section located on the upper side and a rectangular tube-like connection support part 51B located on the lower side. As shown in FIGS. 15 and 16, the guide action part 51A is constituted by a substantially U-shaped channel member having side plate parts 51b and 51b on both sides of the central wall part 51a. A long hole 50 is formed in the central wall portion 51a along the vertical direction.

案内部材51の長孔50に先端部が摺動自在に係入した走行機体横向きの被案内体としてのガイド軸52が搬送ケース11Aの横側部に固定されている。このガイド軸52の先端部には、環状溝形の凹部55を備えた摺接案内体としての樹脂製のブッシュガイド56を外嵌装着してあり、ブッシュガイド56の凹部55に案内部材51の長孔50の内縁部が入り込み係合する状態でガイド軸52を係合案内するよう構成してある。   A guide shaft 52, which is a laterally guided body of the traveling machine body with the tip portion slidably engaged with the elongated hole 50 of the guide member 51, is fixed to the lateral side portion of the transport case 11A. A resin-made bush guide 56 as a sliding contact guide body having an annular groove-shaped recess 55 is externally fitted to the tip of the guide shaft 52, and the guide member 51 is fitted into the recess 55 of the bush guide 56. The guide shaft 52 is engaged and guided in a state where the inner edge portion of the long hole 50 enters and engages.

案内部材51は、ガイド軸52の長孔50に沿う移動を規制する連係用操作状態とガイド軸52の長孔50に沿う移動を許容する連係解除用操作状態とに切り換え自在な切換操作体53を備えている。そして、切換操作体53が連係用操作状態に切り換えられると、ガイド軸52を長孔50における連係用設定位置Pにて刈取搬送装置3の上昇操作に伴う移動を切換操作体53が規制し、切換操作体53が連係用操作状態に切り換えられている状態において、ガイド軸52が連係用設定位置Pよりも刈取搬送装置3の上昇操作側に移動している状態から連係用設定位置Pに向けて移動することを許容するように、切換操作体53が後退変位自在並びに連係用操作状態に復帰付勢される状態で設けられている。   The guide member 51 is a switching operation body 53 that can be switched between a linkage operation state that restricts movement of the guide shaft 52 along the long hole 50 and a link release operation state that allows movement of the guide shaft 52 along the long hole 50. It has. When the switching operation body 53 is switched to the linkage operation state, the switching operation body 53 restricts the movement of the guide shaft 52 associated with the lifting operation of the cutting and conveying device 3 at the linkage setting position P in the long hole 50, In a state where the switching operation body 53 is switched to the linkage operation state, the guide shaft 52 moves from the linkage setting position P to the ascending operation side of the cutting and conveying device 3 toward the linkage setting position P. Therefore, the switching operation body 53 is provided in a state in which it can be moved backward and is urged to return to the linkage operation state.

説明を加えると、切換操作体53は、連係用操作状態と連係解除用操作状態とにわたり揺動自在に案内部材51に支持され、且つ、トグルバネ57により連係用操作状態及び連係解除用操作状態の夫々において弾性付勢力にて位置保持されるよう構成してある。
つまり、図15に示すように、切換操作体53は、棒材を概略Z字状に折り曲げて、上部側に手動操作部53aを備え、下部側にガイド軸52に作用する規制作用部53bを備え、手動操作部53aと規制作用部53bとの間を中継部53cにて連結してあり、手動操作部53aと中継部53cとの間に固定状態で設けたブラケット58を案内部材側の固定部59に機体横幅方向に沿う軸芯X3周りで揺動自在に枢支してある。ブラケット58は略L字形に屈曲してあり、このブラケット58の揺動側端部と案内部材51に形成したバネ受け部60との間にトグルバネ57を張設してある。
前記切換操作体53の手動操作部53aは、搭乗運転部6から運転者が手を伸ばして操作可能な位置に配備されている。
In other words, the switching operation body 53 is supported by the guide member 51 so as to be freely swingable between the linkage operation state and the linkage release operation state, and the toggle operation state of the linkage operation state and the linkage release operation state by the toggle spring 57. Each is configured to be held in position by an elastic biasing force.
That is, as shown in FIG. 15, the switching operation body 53 includes a manual operation portion 53 a on the upper side and a regulation operation portion 53 b that acts on the guide shaft 52 on the lower side by bending a bar in a substantially Z shape. The manual operation portion 53a and the regulating action portion 53b are connected by a relay portion 53c, and a bracket 58 provided in a fixed state between the manual operation portion 53a and the relay portion 53c is fixed on the guide member side. The unit 59 is pivotally supported so as to be swingable around an axis X3 along the width direction of the fuselage. The bracket 58 is bent in a substantially L shape, and a toggle spring 57 is stretched between a swing side end portion of the bracket 58 and a spring receiving portion 60 formed on the guide member 51.
The manual operation portion 53a of the switching operation body 53 is disposed at a position where the driver can reach the driver from the boarding operation portion 6 and operate.

切換操作体53は、手動操作によりデッドポイントを超えて図15の時計方向に揺動操作されると、連係用操作状態に切り換わり(図15の実線で示す状態)、トグルバネ57の弾性付勢力にてその連係用操作状態にて位置保持される(この状態が連係機構Bの連係状態に対応する)。又、手動操作によりデッドポイントを超えて図15の反時計方向に揺動操作されると、連係解除用操作状態に切り換わり(図15の仮想線で示す状態)、トグルバネ57の弾性付勢力にてその連係解除用操作状態にて位置保持される(この状態が連係機構Bの連係解除状態に対応する)。   When the switching operation body 53 is swung in the clockwise direction in FIG. 15 beyond the dead point by a manual operation, the switching operation body 53 is switched to the linkage operation state (the state shown by the solid line in FIG. 15), and the elastic biasing force of the toggle spring 57 The position is held in the linkage operation state (this state corresponds to the linkage state of the linkage mechanism B). Further, when the manual operation is performed to swing the counterclockwise direction in FIG. 15 beyond the dead point, the operation is switched to the linkage release operation state (indicated by the phantom line in FIG. 15), and the elastic biasing force of the toggle spring 57 is changed. The position is held in the linkage release operation state (this state corresponds to the linkage release state of the linkage mechanism B).

切換操作体53は、連係用操作状態において案内部材51の両側の側板部51b,51bに形成された貫通孔61,61に亘って貫通する状態で位置して、その貫通孔61の上側の端縁に接当して位置保持されるようになっており、その状態で下側に位置するガイド軸52の長孔50に沿う上方への移動を規制するようになっている。この状態では、副切断装置14が搬送ケース11Aに付いて昇降するように副切断装置14と刈取搬送装置3とを連結させる。   The switching operation body 53 is located in a state of penetrating through the through holes 61 and 61 formed in the side plate portions 51b and 51b on both sides of the guide member 51 in the linkage operation state, and the upper end of the through hole 61 The position is held in contact with the edge, and in this state, the upward movement of the guide shaft 52 positioned on the lower side along the long hole 50 is restricted. In this state, the sub-cutting device 14 and the cutting and conveying device 3 are connected so that the sub-cutting device 14 moves up and down on the transfer case 11A.

切換操作体53を連係解除用操作状態に切り換えると、搬送ケース11Aが昇降操作されるに伴い、ガイド軸52が案内部材51の長孔50に沿って移動自在に案内される状態となり、副切断装置14が搬送ケース11Aの昇降操作とは関係なく独立して昇降自在となるように、副切断装置14と搬送ケース11Aとの連結を解除する。   When the switching operation body 53 is switched to the linkage release operation state, the guide shaft 52 is movably guided along the elongated hole 50 of the guide member 51 as the transfer case 11A is moved up and down, and the auxiliary cutting is performed. The sub-cutting device 14 and the transport case 11A are disconnected so that the device 14 can be lifted and lowered independently of the lifting operation of the transport case 11A.

このような構成では、例えば、図18に示すように、ガイド軸52が連係用設定位置Pよりも上方側に位置している状態(図18の(b)で示す状態)において、誤って切換操作体53を連係用操作状態に切り換えた場合(図18の(c)で示す状態)であっても、刈取搬送装置3を下降させて、副切断装置14が接地してガイド軸52が連係用設定位置Pに戻るように案内部材51に対して相対移動すると、図18(d)に示すように、切換操作体53がガイド軸52にて押し操作されて弾性的に後退変位し、ガイド軸52が連係用設定位置Pに戻る。ガイド軸52が連係用設定位置Pに戻ったのちは、トグルバネ57の弾性付勢力により切換操作体53が連係用操作状態(図18の(e)で示す状態)に自動復帰することになる。   In such a configuration, for example, as shown in FIG. 18, in the state where the guide shaft 52 is located above the linkage setting position P (the state shown in FIG. 18B), the switching is erroneously performed. Even when the operating body 53 is switched to the linkage operating state (the state shown in FIG. 18C), the cutting and conveying device 3 is lowered, the sub-cutting device 14 is grounded, and the guide shaft 52 is linked. When the relative movement is made with respect to the guide member 51 so as to return to the set position P, the switching operation body 53 is pushed by the guide shaft 52 and elastically moved backward as shown in FIG. The shaft 52 returns to the linkage setting position P. After the guide shaft 52 returns to the linkage setting position P, the switching operation body 53 automatically returns to the linkage operation state (the state shown in FIG. 18E) by the elastic biasing force of the toggle spring 57.

前記案内部材51に、ガイド軸52における刈取搬送装置3の上昇操作に伴う移動の操作限界を規定する規制具62を設けてあり、規制具62の案内部材51に対する取り付け位置を長孔50の長手方向に沿って変更調整可能に構成してある。
すなわち、図15に示すように、頭付きピンからなる規制具62を案内部材51の両側の側板部51b,51bに形成された貫通孔63,63に亘って貫通する状態で設けてあり、しかも、図16に示すように、その貫通孔63を長孔50の長手方向に沿って間隔をあけて複数箇所(図に示す例では4箇所)に夫々形成してある。その複数箇所の貫通孔63のうちのいずれかに規制具62を付け替えることにより、規制具62の案内部材51に対する取り付け位置を長孔50の長手方向に沿って変更調整することができる。
The guide member 51 is provided with a restricting tool 62 that regulates an operation limit of movement of the guide shaft 52 that accompanies the lifting operation of the cutting and conveying device 3, and the attachment position of the restricting tool 62 with respect to the guide member 51 is the length of the long hole 50. It can be changed and adjusted along the direction.
That is, as shown in FIG. 15, a restricting tool 62 composed of a headed pin is provided in a state of penetrating through the through holes 63 and 63 formed in the side plate portions 51 b and 51 b on both sides of the guide member 51. As shown in FIG. 16, the through holes 63 are formed at a plurality of locations (four locations in the example shown in the figure) at intervals along the longitudinal direction of the long holes 50. By attaching the restricting tool 62 to any one of the plurality of through holes 63, the attachment position of the restricting tool 62 to the guide member 51 can be changed and adjusted along the longitudinal direction of the long hole 50.

上記したように規制具62を備えることで、切換操作体53が連係解除用操作状態に切り換えられていても、刈取搬送装置3を設定高さ以上にまで上昇させると、ガイド軸52の長孔50内での移動が規制されて、ガイド軸52が案内部材51と連動して移動操作されることにより、刈取搬送装置3の上昇操作に連動して副切断装置14が上昇することになる。   By providing the restricting tool 62 as described above, when the cutting and conveying device 3 is raised to a set height or higher even if the switching operation body 53 is switched to the linkage release operation state, the elongated hole of the guide shaft 52 is provided. When the movement within 50 is restricted and the guide shaft 52 is moved in conjunction with the guide member 51, the auxiliary cutting device 14 is lifted in conjunction with the lifting operation of the cutting and conveying device 3.

その結果、切換操作体53を連係解除用操作状態に切り換えて、主切断装置9にて植立穀稈の穂先部だけを刈り取るように上昇させ、且つ、副切断装置14を植立穀稈の株元を切断するように低い位置に設定した作業形態で刈取作業を行っているときに、畦際に近づいて旋回操作を行うような場合、切換操作体53を連係状態に切り換えなくても、刈取搬送装置3を大きく上昇させると、副切断装置14も連動して上昇させることができ、圃場面との接触を回避できる。   As a result, the switching operation body 53 is switched to the linkage release operation state, and the main cutting device 9 is lifted so as to cut only the tip of the planted culm, and the auxiliary cutting device 14 is moved to the planted culm. When cutting operation is performed in a work mode set at a low position so as to cut the stock, when the turning operation is performed approaching the heel, even if the switching operation body 53 is not switched to the linked state, When the cutting and conveying apparatus 3 is greatly raised, the auxiliary cutting apparatus 14 can also be raised in conjunction with it, and contact with the field scene can be avoided.

そして、規制具62の案内部材51に対する取り付け位置を長孔50の長手方向に沿って変更調整することにより、規制具52が作用し始める刈取搬送装置3の対機体上昇位置を作業状況に応じて適切な位置に予め変更設定することができる。   Then, by changing and adjusting the attachment position of the restricting tool 62 with respect to the guide member 51 along the longitudinal direction of the long hole 50, the position where the restricting tool 52 starts to act is determined as the machine lift position of the cutting and conveying apparatus 3 according to the work situation. It can be changed and set in advance at an appropriate position.

案内部材51の下端部には、レバー支軸54が嵌り合う状態で取り付けられる枢支ボス部64を上下方向に位置を異ならせて2箇所設けてあり、この枢支ボス部64を付け替えることで案内部材51の副切断装置14に対する相対位置を変更調整できるよう構成してある。
このように案内部材51の下端部の位置を変更することによっても、規制具52が作用し始める刈取搬送装置3の対機体上昇位置を変更設定することができる。
At the lower end portion of the guide member 51, there are provided two pivot boss portions 64 which are attached in a state where the lever support shafts 54 are fitted to each other at different positions in the vertical direction. The relative position of the guide member 51 with respect to the auxiliary cutting device 14 can be changed and adjusted.
Thus, by changing the position of the lower end portion of the guide member 51, it is also possible to change and set the ascending position of the cutting and conveying apparatus 3 at which the restricting tool 52 starts to act.

又、案内部材51に形成される長孔50の下端部には、組み付け時においてブッシュガイド56を装着させるための嵌め込み用の大径部36aを形成しているが、刈取搬送装置3を最も下降させても、ガイド軸52は連係用設定位置Pより下方に移動することはなく、大径部50aにまで移動することはない。   In addition, a large-diameter portion 36a for fitting for mounting the bush guide 56 at the time of assembly is formed at the lower end portion of the long hole 50 formed in the guide member 51. The cutting and conveying device 3 is lowered most. Even if it makes it, the guide shaft 52 does not move below the linkage setting position P, and does not move to the large diameter portion 50a.

そして、刈取作業時には、図1に示すように、切換操作体53を連係解除用操作状態に切り換えることにより連係機構Bを連係解除状態に切り換える。又、畦越え走行時には、図19に示すように、切換操作体53を連係用操作状態に切り換えることにより連係機構Bを連係状態に切り換えることになる。   Then, at the time of cutting, as shown in FIG. 1, the linkage mechanism B is switched to the linkage release state by switching the switching operation body 53 to the linkage release operation state. Further, when traveling over the heel, as shown in FIG. 19, the linkage mechanism B is switched to the linkage state by switching the switching operation body 53 to the linkage operation state.

刈取作業時には、連係機構Bは連係解除状態に切り換えられているから、副切断装置14は、地面に接地追従しながら昇降するが、主切断装置9の後方に主切断装置9の配置高さと略同じ配置高さに位置しており、刈取り作用を行なわない。
そして、畦越え走行時には、図19に示すように、畦との接触を避けるために、刈取搬送装置3を大きく上昇させて上昇非作業位置に上昇させることになるが、連係機構Bを連係状態に切換えておくと、刈取搬送装置3が上昇非作業位置に上昇操作されると、連係機構Bによる連係により副切断装置14が刈取搬送装置3によって上昇操作されるので、副切断装置14が畦に接触することを防止できる。
Since the linkage mechanism B is switched to the linkage-released state at the time of the cutting operation, the sub-cutting device 14 moves up and down while following the ground to the ground. However, the arrangement height of the main cutting device 9 is approximately the rear of the main cutting device 9. It is located at the same arrangement height and does not perform the cutting action.
Then, when traveling over the heel, as shown in FIG. 19, in order to avoid contact with the heel, the cutting and conveying device 3 is greatly raised to the raised non-working position, but the linkage mechanism B is in the linked state. If the cutting and conveying device 3 is lifted to the non-working position, the secondary cutting device 14 is lifted by the cutting and conveying device 3 due to the linkage by the linkage mechanism B. Can be prevented from touching.

〔別実施形態〕
(1)上記実施形態では、連係手段として、案内部材を副切断装置側に設け、被案内体としてのガイド軸を刈取搬送装置側に設ける構成を例示したが、連係手段としては、このような構成に代えて、案内部材を刈取搬送装置側に設け、被案内体としてのガイド軸を副切断装置側に設けるようにしてもよい。
[Another embodiment]
(1) In the above-described embodiment, the configuration in which the guide member is provided on the sub-cutting device side and the guide shaft as the guided body is provided on the cutting and conveying device side is illustrated as the linking device. Instead of the configuration, a guide member may be provided on the cutting and conveying apparatus side, and a guide shaft as a guided body may be provided on the sub-cutting apparatus side.

(2)上記実施形態では、前記連係手段としての連係機構Bを搬送ケース11Aの搭乗運転部6側に設ける構成としたが、このような構成に代えて、連係機構Bを搬送ケース11Aの搭乗運転部6側とは反対側の箇所に設ける構成としてもよい。
この場合には、案内部材51の下端部は左側昇降フレーム13Cに取り付けられ、ガイド軸52は搬送ケース11Aの搭乗運転部6側とは反対側の箇所、つまり、機体進行方向に向かって左側に設けられることになり、切換操作体53は、走行機体の左側外方から手動操作されることになる。
(2) In the above-described embodiment, the linkage mechanism B as the linkage means is provided on the boarding operation unit 6 side of the transport case 11A. Instead of this configuration, the linkage mechanism B is installed on the transport case 11A. It is good also as a structure provided in the location on the opposite side to the driving | operation part 6 side.
In this case, the lower end portion of the guide member 51 is attached to the left elevating frame 13C, and the guide shaft 52 is located on the opposite side to the boarding operation portion 6 side of the transport case 11A, that is, on the left side in the aircraft traveling direction. As a result, the switching operation body 53 is manually operated from the left outer side of the traveling machine body.

(3)上記実施形態では、案内部材が断面略コの字状のチャンネル材にて構成されるものを例示したが、このような構成に代えて、例えば、平板状の部材で構成するもの等、他の形態で実施してもよい。 (3) In the above embodiment, the guide member is exemplified by a channel material having a substantially U-shaped cross section. However, instead of such a configuration, for example, a configuration including a flat plate member, etc. The present invention may be implemented in other forms.

(4)上記実施形態では、案内部材に被案内体の刈取搬送装置の上昇操作に伴う移動の操作限界を規定する規制具が設けられ、しかも、規制具の案内部材に対する取り付け位置を長孔の長手方向に沿って変更調整可能に構成したが、このような構成に代えて、規制具の案内部材に対する取り付け位置を固定してもよく、又、このような規制具を備えない構成としてもよい。このように規制具を備えない場合には、長孔の端縁部にて被案内体の移動を規制することになる。 (4) In the above-described embodiment, the guide member is provided with a restricting tool that regulates the operation limit of the movement associated with the lifting operation of the cutting and conveying device of the guided body, and the attachment position of the restricting tool to the guide member is the long hole. Although it was configured to be able to be changed and adjusted along the longitudinal direction, instead of such a configuration, the mounting position of the regulating tool relative to the guide member may be fixed, or a configuration without such a regulating tool may be provided. . When the restriction tool is not provided as described above, the movement of the guided body is restricted at the edge of the long hole.

(5)上記実施形態では、切換操作体が、トグルバネにより連係用操作状態及び連係解除用操作状態の夫々において弾性付勢力にて位置保持されるようにしたが、このような構成に代えて、位置保持用の専用の操作具を備える構成等、種々の構成を採用することができる。 (5) In the above embodiment, the switching operation body is held by the elastic biasing force in each of the linkage operation state and the linkage release operation state by the toggle spring, but instead of such a configuration, Various configurations such as a configuration including a dedicated operation tool for position holding can be employed.

本発明は、稲、麦、大豆など各種の作物を収穫対象とするコンバインに利用できる。   INDUSTRIAL APPLICABILITY The present invention can be used for a combine for harvesting various crops such as rice, wheat and soybeans.

3 刈取搬送装置(刈取部)
9 主切断装置
13A,13B,13C 昇降フレーム
14 副切断装置
50 長孔
51 案内部材
51a 壁面部
51b 側板部
52 ガイド軸(被案内体)
53 切換操作体
55 凹部
56 ブッシュガイド(摺接案内体)
57 トグルバネ
61 貫通孔
62 規制具
63 貫通孔
B 連係機構(連係手段)
P 連係用設定位置
3 Cutting and conveying equipment (cutting part)
9 Main cutting devices 13A, 13B, 13C Elevating frame 14 Sub cutting device 50 Long hole 51 Guide member 51a Wall surface portion 51b Side plate portion 52 Guide shaft (guided body)
53 Switching operation body 55 Recess 56 Bush guide (sliding contact guide body)
57 Toggle spring 61 Through-hole 62 Restrictor 63 Through-hole B Linking mechanism (linking means)
P Link setting position

Claims (7)

植立茎稈を刈り取る主切断装置と、その主切断装置よりも低い位置で前記植立茎稈を刈り取る副切断装置とが備えられたコンバインであって、
前記主切断装置が走行機体に上下揺動自在に装備させた刈取部に支持され、前記副切断装置が走行機体に上下揺動自在に装備させた昇降フレームに支持され、
前記刈取部の昇降操作に連動して前記副切断装置が昇降する連係状態と、前記刈取部の昇降操作とは別に独立して前記副切断装置が昇降自在である連係解除状態とに切換操作自在な連係手段が備えられ、
前記連係手段が、案内用の長孔が形成された案内部材、及び、前記長孔に沿って移動自在に係合案内される被案内体を、そのうちのいずれか一方を前記刈取部側に設け、他方を前記副切断装置側に設ける状態で備えて構成され、且つ、前記被案内体の前記長孔に沿う移動を規制する連係用操作状態と前記被案内体の前記長孔に沿う移動を許容する連係解除用操作状態とに切り換え自在な切換操作体を、前記案内部材に備えて構成されているコンバイン。
A combine provided with a main cutting device that reaps the planted stalk and a sub-cutting device that reaps the planted stalk at a position lower than the main cutting device,
The main cutting device is supported by a cutting portion that is mounted on a traveling machine body so as to be swingable up and down, and the sub-cutting device is supported by a lifting frame that is mounted on the traveling machine body so as to be swingable up and down.
Switching operation can be switched between a linkage state in which the secondary cutting device moves up and down in conjunction with the lifting operation of the cutting unit and a linkage release state in which the secondary cutting device can move up and down independently of the lifting operation of the cutting unit. Linking means,
The linkage means includes a guide member having a guide hole formed therein, and a guided body that is engaged and guided so as to be movable along the slot. The other is provided in a state of being provided on the side of the sub-cutting device, and the linked operation state for restricting the movement of the guided body along the long hole and the movement of the guided body along the long hole are provided. A combine that includes a switching operation body that can be switched to a permissible linkage release operation state in the guide member.
前記切換操作体が前記連係用操作状態に切り換えられると、前記被案内体を前記長孔における連係用設定位置にて前記刈取部の上昇操作に伴う移動を前記切換操作体が規制するように構成されるとともに、
前記切換操作体が前記連係用操作状態に切り換えられている状態において、前記被案内体が前記連係用設定位置よりも前記刈取部の上昇操作側に移動している状態から前記連係用設定位置に向けて移動することを許容するように、前記切換操作体が後退変位自在並びに前記連係用操作状態に復帰付勢される状態で設けられている請求項1記載のコンバイン。
When the switching operation body is switched to the linkage operation state, the switching operation body regulates the movement of the guided body at the linkage setting position in the long hole in accordance with the raising operation of the cutting part. As
In a state where the switching operation body is switched to the linkage operation state, the guided body is moved from the linkage setting position to the ascending operation side of the cutting unit to the linkage setting position. The combine according to claim 1, wherein the combiner is provided in a state in which the switching operation body is retractably displaceable and is urged to return to the linkage operation state so as to allow movement toward the direction.
前記切換操作体が、前記連係用操作状態と前記連係解除用操作状態とにわたり揺動自在に前記案内部材に支持され、且つ、トグルバネにより前記連係用操作状態及び前記連係解除用操作状態の夫々において弾性付勢力にて位置保持されるように構成されている請求項1又は2記載のコンバイン。   The switching operation body is supported by the guide member in a swingable manner between the linkage operation state and the linkage release operation state, and in each of the linkage operation state and the linkage release operation state by a toggle spring. The combine according to claim 1 or 2, wherein the combine is configured to be held by an elastic biasing force. 前記被案内体に、環状溝形の凹部を備えた樹脂製の摺接案内体が外嵌装着され、
前記摺接案内体の前記凹部に前記案内部材の長孔の内縁部が入り込み係合する状態で、前記被案内体が前記長孔に係合案内されるように構成されている請求項1〜3のいずれか1項に記載のコンバイン。
A resin-made sliding contact guide body provided with an annular groove-shaped recess is externally fitted to the guided body,
2. The guided body is configured to be engaged and guided by the long hole in a state where an inner edge portion of the long hole of the guide member enters and engages with the concave portion of the sliding guide body. 4. The combine according to any one of 3.
前記案内部材に、前記被案内体の前記刈取部の上昇操作に伴う移動の操作限界を規定する規制具が設けられている請求項1〜4のいずれか1項に記載のコンバイン。   The combiner according to any one of claims 1 to 4, wherein the guide member is provided with a restricting tool that regulates an operation limit of movement of the guided body in accordance with a lifting operation of the cutting portion. 前記規制具の前記案内部材に対する取り付け位置が前記長孔の長手方向に沿って変更調整可能に構成されている請求項5記載のコンバイン。   The combine of Claim 5 comprised so that a change position of the attachment position with respect to the said guide member of the said control tool can be adjusted along the longitudinal direction of the said long hole. 前記案内部材が、中央の壁面部の両側に側板部を備えた断面略コの字状のチャンネル材にて構成され、且つ、前記中央の壁面部に前記長孔が形成され、
前記規制具が、前記案内部材の両側の側板部に形成された貫通孔に亘って貫通する状態で設けられ、
前記切換操作体が、前記連係用操作状態において前記案内部材の両側の側板部に形成された貫通孔に亘って貫通する状態で位置して、その貫通孔の端縁に接当して前記被案内体の前記長孔に沿う移動を規制するように構成されている請求項5又は6記載のコンバイン。
The guide member is configured by a substantially U-shaped channel material having side plate portions on both sides of a central wall surface portion, and the elongated hole is formed in the central wall surface portion,
The restricting tool is provided in a state of penetrating through a through hole formed in a side plate portion on both sides of the guide member,
The switching operation body is positioned in a state of penetrating through the through holes formed in the side plate portions on both sides of the guide member in the linkage operation state, and is brought into contact with the edge of the through hole and The combine of Claim 5 or 6 comprised so that the movement along the said long hole of a guide body may be controlled.
JP2010043085A 2010-02-26 2010-02-26 Combine harvester Pending JP2011177075A (en)

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JP2015089340A (en) * 2013-11-05 2015-05-11 ヤンマー株式会社 Combine harvester
CN106455487A (en) * 2014-05-28 2017-02-22 洋马株式会社 Mowing cutter drive

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JP5655766B2 (en) * 2011-11-30 2015-01-21 井関農機株式会社 Work vehicle
CN102668823A (en) * 2012-05-24 2012-09-19 福田雷沃国际重工股份有限公司 Combine harvester with grain tank device capable of being horizontally moved out
US9137945B2 (en) * 2012-12-18 2015-09-22 Cnh Industrial America Llc Method of controlling a conveyance rate of grain of an unloader system
CN104384928B (en) * 2014-11-22 2016-11-23 兴化市利源农业装备制造有限公司 A kind of harvester component assembling line

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2015089340A (en) * 2013-11-05 2015-05-11 ヤンマー株式会社 Combine harvester
CN106455487A (en) * 2014-05-28 2017-02-22 洋马株式会社 Mowing cutter drive

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