JP2022011657A

JP2022011657A - Combine harvester

Info

Publication number: JP2022011657A
Application number: JP2020112945A
Authority: JP
Inventors: 功貴福田; Koki Fukuda; 洋也山本; Hiroya Yamamoto; 哲治永田; Tetsuji Nagata
Original assignee: Kubota Corp
Current assignee: Kubota Corp
Priority date: 2020-06-30
Filing date: 2020-06-30
Publication date: 2022-01-17
Anticipated expiration: 2040-06-30
Also published as: JP7403396B2

Abstract

To provide a combine harvester which includes in a supply conveying device for supplying reaped grain culms to a thresher, a root holding and conveying part for holding and conveying root side parts of reaped grain culms, and an ear tip engaging and conveying part for engaging and conveying ear tip side parts of reaped grain culms, and which can quickly re-attach the root conveying guide rod and the ear tip conveying guide rod to the supply conveying device.SOLUTION: There are provided in a first connection part 28 for connecting a root conveying guide rod 18 to a support frame 21, a first positioning mechanism 40 for positioning the root conveying guide rod 18 with respect to an endless rotary root conveying body, and a first lock mechanism 50 for fixing the root conveying guide rod 18 to the support frame 21. There are provided in a second connection part 30 for connecting an ear tip conveying guide rod 20 to the support frame 21, a second positioning mechanism 60 for positioning the ear tip conveying guide rod 20 with respect to an endless rotary ear tip conveying body 19, and a second lock mechanism 70 for fixing the ear tip conveying guide rod 20 to the support frame 21.SELECTED DRAWING: Figure 3

Description

本発明は、コンバインに関する。 The present invention relates to a combine.

コンバインには、植立穀稈の株元を切断して植立穀稈を刈り取る刈取部、および、刈取部によって刈り取られた刈取穀稈を後方に搬送する供給搬送装置を有する刈取前処理部と、供給搬送装置によって刈取穀稈が供給される脱穀フィードチェーンを有し、刈取穀稈の脱穀処理を行う脱穀装置と、が備えられたものがある。
この種のコンバインとしは、たとえば特許文献１に示されるものがある。特許文献１に示されるコンバインでは、植立穀稈を株元側で刈り取る刈取装置、刈取装置からの刈取穀稈を後方向きに搬送する供給装置を有する刈取前処理部が備えられ、供給装置によって刈取穀稈が供給される脱穀フィードチェーンを有する脱穀装置が備えられている。
この種のコンバインにおいては、供給搬送装置に、刈取穀稈の株元側部を無端回動株元搬送体と株元搬送ガイド杆とによって挟持搬送する株元挟持搬送部と、刈取穀稈の穂先側部を無端回動穂先搬送体と穂先搬送ガイド杆とによって係止搬送する穂先係止搬送部と、を備えられたものがある。 The combine includes a cutting unit that cuts the root of the planted culm and cuts the planted culm, and a pre-cutting processing unit that has a supply and transport device that transports the cut culm cut by the cutting unit to the rear. There is a threshing device having a threshing feed chain to which a threshing culm is supplied by a supply and transport device, and a threshing device for performing a threshing process of the threshing culm.
Examples of this type of combine are those shown in Patent Document 1. The combine shown in Patent Document 1 is provided with a cutting device for cutting the planted grain culm on the stock origin side and a pre-cutting processing unit having a supply device for transporting the harvested grain culm from the cutting device backward. A threshing device with a threshing feed chain to which the harvested culm is supplied is provided.
In this type of combine, the supply and transport device includes a stock-root holding and transporting unit that holds and transports the stock-root side portion of the harvested grain culm by an endless rotating stock-source transporter and a stock-source transport guide rod, and a harvested grain culm. Some are provided with a tip locking transport portion for locking and transporting the tip side portion by an endless rotating tip transport body and a tip transport guide rod.

特開２０１０－２６３８５２号公報Japanese Unexamined Patent Publication No. 2010-263852

例えば供給搬送装置に穀稈が詰まった際、株元搬送ガイド杆および穂先搬送ガイド杆の支持部に対する連結を解除して株元搬送ガイド杆および穂先搬送ガイド杆を供給搬送装置から取り出して詰まりを解消し、詰まりを解消できると、株元搬送ガイド杆および穂先搬送ガイド杆を供給搬送装置に付け戻すのであるが、従来では、株元搬送ガイド杆および穂先搬送ガイド杆を支持部に連結する複数の連結ボルトを付け戻す必要があり、また工具を準備する必要があるなど、株元搬送ガイド杆および穂先搬送ガイド杆を供給搬送装置に付け戻すのに手間が掛かるので、株元搬送ガイド杆および穂先搬送ガイド杆を供給搬送装置に対して手早く付け戻すことができるコンバインを要望されている。 For example, when a grain culm is clogged in the supply and transport device, the connection between the stock root transport guide rod and the tip transport guide rod to the support portion is released, and the stock root transport guide rod and the tip transport guide rod are taken out from the supply transport device to unclog. When it is cleared and the clogging can be cleared, the stock root transport guide culm and the tip transport guide culm are returned to the supply transport device. Since it is troublesome to reattach the stock transfer guide rod and the tip transfer guide rod to the supply transport device, such as the need to reattach the connecting bolts and prepare the tools, the stock transfer guide rod and the stock transfer guide rod and There is a demand for a combine that can quickly attach the tip transfer guide culm to the supply transfer device.

本発明は、株元搬送ガイド杆および穂先搬送ガイド杆を供給搬送装置に手早く付け戻すことができるコンバインを提供する。 The present invention provides a combine that can quickly attach the stock origin transport guide rod and the tip transport guide rod to the supply transport device.

本発明によるコンバインは、
植立穀稈の株元を切断して植立穀稈を刈り取る刈取部、および、前記刈取部によって刈り取られた刈取穀稈を後方に搬送する供給搬送装置を有する刈取前処理部と、前記供給搬送装置によって刈取穀稈が供給される脱穀フィードチェーンを有し、刈取穀稈の脱穀処理を行う脱穀装置と、が備えられ、前記供給搬送装置に、刈取穀稈の株元側部を無端回動株元搬送体と株元搬送ガイド杆とによって挟持搬送する株元挟持搬送部と、刈取穀稈の穂先側部を無端回動穂先搬送体と穂先搬送ガイド杆とによって係止搬送する穂先係止搬送部と、が備えられ、前記株元搬送ガイド杆に、前記株元搬送ガイド杆を支持フレームに脱着可能に連結する第１連結部が備えられ、前記第１連結部に、前記無端回動株元搬送体に対する前記株元搬送ガイド杆の位置決めを行う第１位置決め機構と、前記支持フレームに対する前記株元搬送ガイド杆の固定を行う第１ロック機構と、が備えられ、前記穂先搬送ガイド杆に、前記穂先搬送ガイド杆を前記支持フレームに脱着可能に連結する第２連結部が備えられ、前記第２連結部に、前記無端回動穂先搬送体に対する前記穂先搬送ガイド杆の位置決めを行う第２位置決め機構と、前記支持フレームに対する前記穂先搬送ガイド杆の固定を行う第２ロック機構と、が備えられている。 The combine according to the present invention
A cutting section that cuts the root of the planted grain stalk and cuts the planted grain stalk, and a pre-cutting processing section having a supply transport device that transports the cut grain stalk cut by the cutting section to the rear, and the supply. It has a grain removal feed chain to which the harvested grain stalk is supplied by a transport device, and is provided with a grain removal device for performing a grain removal process of the harvested grain stalk. The stock root holding and transporting unit that is sandwiched and transported by the stock root transporting body and the stock root transport guide rod, and the tip clerk that locks and transports the tip side portion of the harvested grain stalk by the endless rotating tip transport body and the tip transport guide rod. A stop transport section is provided, and the stock transfer guide rod is provided with a first connecting portion that detachably connects the stock transport guide rod to the support frame, and the first connecting portion is provided with the endless rotation. A first positioning mechanism for positioning the stock transfer guide rod with respect to the stock transport body and a first lock mechanism for fixing the stock transport guide rod with respect to the support frame are provided, and the tip transport guide is provided. The rod is provided with a second connecting portion for detachably connecting the tip transport guide rod to the support frame, and the second connecting portion positions the tip transport guide rod with respect to the endless rotating tip transport body. A second positioning mechanism and a second lock mechanism for fixing the tip transfer guide rod to the support frame are provided.

本構成によると、無端回動株元搬送体に対する株元搬送ガイド杆の位置合わせを第１位置決め機構によって行わせた状態で株元搬送ガイド杆を第１ロック機構によって支持フレームに固定でき、無端回動穂先搬送体に対する穂先搬送ガイド杆の位置合わせを第２位置決め機構によって行わせた状態で穂先搬送ガイド杆を第２ロック機構によって支持フレームに固定できるので、株元搬送ガイド杆の無端回動株元搬送体に対する位置合わせができた状態で株元搬送ガイド杆を供給搬送装置に付け戻し、穂先搬送ガイド杆の無端回動穂先搬送体に対する位置合わせができた状態で穂先搬送ガイド杆を供給搬送装置に付け戻すのに、株元搬送ガイド杆を無端回動株元搬送体に対して位置合わせする特別な手間を掛けずに、かつ、穂先搬送ガイド杆を無端回動穂先搬送体に対して位置合わせする特別手間を掛けずに操作簡単かつ手早くできる。 According to this configuration, the stock base transport guide rod can be fixed to the support frame by the first lock mechanism in a state where the stock base transport guide rod is aligned with the endless rotating stock base transport body by the first positioning mechanism, and is endless. Since the tip transfer guide rod can be fixed to the support frame by the second lock mechanism while the tip transfer guide rod is aligned with the rotating tip transport body by the second positioning mechanism, the endless rotation of the stock transfer guide rod can be performed. The stock root transport guide rod is returned to the supply transport device in a state where the stock root transport guide rod is aligned with the stock base transport body, and the tip transport guide rod is supplied with the tip end transport guide rod endless rotation with respect to the stock tip transport body. To attach it back to the transport device, the stock root transport guide rod does not require special labor to align with the endless rotating stock base transport body, and the tip transport guide rod is attached to the endless rotating tip transport body. It is easy and quick to operate without the special trouble of aligning.

本発明においては、
前記株元搬送ガイド杆は、前記支持フレームに支持され、前記穂先搬送ガイド杆は、前記株元搬送ガイド杆に支持されることによって前記支持フレームに支持されると好適である。 In the present invention
It is preferable that the stock root transport guide rod is supported by the support frame, and the tip transport guide rod is supported by the support frame by being supported by the stock root transport guide rod.

本構成によると、株元搬送ガイド杆を支持フレームから分離させると、穂先搬送ガイド杆が株元搬送ガイド杆と共に支持フレームから分離するので、株元搬送ガイド杆と穂先搬送ガイド杆を一挙に供給搬送装置から取り出すことができる。 According to this configuration, when the stock origin transfer guide rod is separated from the support frame, the tip transfer guide rod is separated from the support frame together with the stock origin transfer guide rod, so that the stock origin transfer guide rod and the tip transfer guide rod are supplied at once. It can be taken out from the transport device.

本発明においては、
前記第１位置決め機構は、３次元方向のうちの２次元方向における前記株元搬送ガイド杆の位置決めを行い、前記第１ロック機構は、前記３次元方向のうちの残りの１次元方向における前記株元搬送ガイド杆の固定を行い、前記第２位置決め機構は、３次元方向のうちの２次元方向における前記穂先搬送ガイド杆の位置決めを行い、前記第２ロック機構は、前記３次元方向のうちの残りの１次元方向における前記穂先搬送ガイド杆の固定を行うと好適である。 In the present invention
The first positioning mechanism positions the stock origin transport guide rod in the two-dimensional direction of the three-dimensional direction, and the first lock mechanism positions the stock in the remaining one-dimensional direction of the three-dimensional direction. The original transport guide rod is fixed, the second positioning mechanism positions the tip transport guide rod in the two-dimensional direction of the three-dimensional direction, and the second lock mechanism positions the tip transport guide rod in the three-dimensional direction. It is preferable to fix the tip transfer guide rod in the remaining one-dimensional direction.

本構成によると、第１ロック機構による株元搬送ガイド杆の固定によって３次元方向のうちの残りの１次元方向における株元搬送ガイド杆の位置決めを行わせられるので、３次元方向すべてにおける株元搬送ガイド杆の位置決めを位置決め機構に行わせるのに比べ、第１位置決め機構の構造を２次元方向における位置決めを行うだけの簡素な構造に済ませられる。第２ロック機構による穂先搬送ガイド杆の固定によって３次元方向のうちの残りの１次元方向における穂先搬送ガイド杆の位置決めを行わせられるので、３次元方向すべてにおける穂先搬送ガイド杆の位置決めを位置決め機構に行わせるのに比べ、第２位置決め機構の構造を２次元方向における位置決めを行うだけの簡素な構造に済ませられる。 According to this configuration, by fixing the stock element transport guide rod by the first lock mechanism, the stock element transfer guide rod can be positioned in the remaining one-dimensional direction of the three-dimensional directions, so that the stock element can be positioned in all three-dimensional directions. Compared to having the positioning mechanism perform the positioning of the transport guide rod, the structure of the first positioning mechanism can be simplified to only perform the positioning in the two-dimensional direction. By fixing the tip transfer guide rod by the second lock mechanism, the tip transfer guide rod can be positioned in the remaining one-dimensional direction in the three-dimensional direction. Therefore, the positioning mechanism for positioning the tip transfer guide rod in all three-dimensional directions. The structure of the second positioning mechanism can be made into a simple structure that only performs positioning in the two-dimensional direction.

本発明においては、前記第１位置決め機構および前記第２位置決め機構は、ピン孔部と、前記ピン孔部に係入される位置決めピンと、を有していると好適である。 In the present invention, it is preferable that the first positioning mechanism and the second positioning mechanism have a pin hole portion and a positioning pin engaged in the pin hole portion.

本構成によると、第１位置決め機構および第２位置決め機構を作用状態にするのに位置決めピンをピン孔部に係入させるだけの簡単な操作で行える。 According to this configuration, the first positioning mechanism and the second positioning mechanism can be put into an operating state by a simple operation of engaging the positioning pin in the pin hole portion.

本発明においては、
前記第１ロック機構及び前記第２ロック機構の少なくとも一方は、手動による締め付け操作可能な締結具を有していると好適である。 In the present invention
It is preferable that at least one of the first lock mechanism and the second lock mechanism has a fastener that can be manually tightened.

本構成によると、第１ロック機構及び第２ロック機構の少なくとも一方は、工具を準備しなくても、手動操作で作用状態にできる。 According to this configuration, at least one of the first lock mechanism and the second lock mechanism can be manually operated without preparing a tool.

本発明においては、
前記第１ロック機構及び前記第２ロック機構の少なくとも一方に、受け部と、前記受け部から延出された頭付きピンと、前記頭付きピンの頭部よりも大きなピン孔部を有し、前記ピン孔部に前記頭付きピンを通した状態で前記受け部に面当りする当接部と、前記当接部を前記受け部に当接させた状態で、前記頭付きピンの頭部と前記当接部との間の隙間に嵌め込まれるクサビ部材と、が備えられ、前記クサビ部材は、前記隙間に嵌入する状態と、前記隙間から外される状態とに姿勢可能に備えられていると好適である。 In the present invention
At least one of the first lock mechanism and the second lock mechanism has a receiving portion, a headed pin extending from the receiving portion, and a pin hole portion larger than the head of the headed pin. The head of the headed pin and the head of the headed pin with the abutting portion in contact with the receiving portion and the abutting portion in contact with the receiving portion with the headed pin passed through the pin hole portion. It is preferable that the wedge member is provided with a wedge member fitted in the gap between the contact portion and the wedge member can be stanced in a state of being fitted into the gap and a state of being removed from the gap. Is.

本構成によると、前記第１ロック機構及び前記第２ロック機構の少なくとも一方は、クサビ部材を頭付きピンの頭部と当接部との間の隙間に嵌入させるだけの簡単な操作で作用状態にできる。 According to this configuration, at least one of the first lock mechanism and the second lock mechanism is in an operating state by a simple operation of inserting the wedge member into the gap between the head of the headed pin and the abutting portion. Can be done.

本発明においては、
前記頭付きピンは、前記受け部から機体横外側向きに延出され、前記当接部は、前記受け部に対して機体横外側から当接されるように構成されていると好適である。 In the present invention
It is preferable that the headed pin extends from the receiving portion toward the lateral side of the machine body, and the contact portion is configured to be in contact with the receiving portion from the lateral side of the machine body.

本構成によると、頭付きピンをピン孔部に対して係脱させる操作、および、クサビ部材の姿勢切換操作を機体横外側から行い易いので、ロック機構を操作し易い。 According to this configuration, the operation of engaging and disengaging the headed pin with respect to the pin hole portion and the operation of switching the posture of the wedge member can be easily performed from the lateral side of the machine body, so that the lock mechanism can be easily operated.

コンバインの全体を示す左側面図である。It is a left side view which shows the whole combine. 刈取部および供給搬送装置を示す平面図である。It is a top view which shows the cutting part and the supply transfer device. 株元搬送ガイド杆および穂先搬送ガイド杆の支持構造を示す平面図である。It is a top view which shows the support structure of the stock origin transport guide rod and the tip transport guide rod. 株元搬送ガイド杆および穂先搬送ガイド杆の支持構造を示す前面図である。It is a front view which shows the support structure of the stock origin transport guide rod and the tip transport guide rod. 第１支持部を示す平面図である。It is a top view which shows the 1st support part. 第１位置決め機構、第１ロック機構、第２位置決め機構および第２ロック機構を示す底面図である。It is a bottom view which shows the 1st positioning mechanism, 1st lock mechanism, 2nd positioning mechanism and 2nd lock mechanism.

以下、本発明の一例である実施形態を図面に基づいて説明する。
なお、以下の説明では、コンバインの走行機体に関し、図１に示される矢印Ｆの方向を「機体前方」、矢印Ｂの方向を「機体後方」、矢印Ｕの方向を「機体上方」、矢印Ｄの方向を「機体下方」、紙面表側の方向を「機体左方」、紙面裏側の方向を「機体右方」とする。 Hereinafter, embodiments that are an example of the present invention will be described with reference to the drawings.
In the following description, regarding the traveling aircraft of the combine, the direction of the arrow F shown in FIG. 1 is "front of the aircraft", the direction of the arrow B is "rear of the aircraft", the direction of the arrow U is "upward of the aircraft", and the arrow D. The direction of is "downward of the aircraft", the direction of the front side of the paper is "left side of the aircraft", and the direction of the back side of the paper is "right side of the aircraft".

〔コンバインの全体〕
コンバインは、角パイプ材などの複数の鋼材を連結して構成された機体フレーム１、機体フレーム１の下部に設けられた左右一対のクローラ式走行装置２を有する走行機体を備えている。走行機体の前部における横一側部に、運転座席３を有する運転部４が設けられている。走行機体の前部における運転部側とは反対側の横側部に、稲や麦の植立穀稈を刈取り、刈取穀稈を後方に搬送する刈取前処理部５が設けられている。刈取前処理部５は、下降作業状態と上昇非作業状態とに昇降操作可能に設けられている。走行機体の後部に、脱穀装置６が設けられている。脱穀装置６は、刈取前処理部５によって刈取穀稈が供給される脱穀フィードチェーン７を有し、刈取穀稈の株元側部が脱穀フィードチェーン７によって挟持搬送されて刈取穀稈の穂先側が扱室（図示せず）に挿入され、穂先側を回転する扱胴（図示せず）によって脱穀処理し、脱穀処理によって得られた穀粒と切れワラなどの塵埃とを選別する選別処理を行う。走行機体の後部における脱穀装置側とは反対側の横側部に、脱穀装置６によって得られた穀粒を回収して貯留する穀粒タンク８が設けられている。穀粒タンク８の後部に、穀粒タンク８から穀粒を排出する穀粒排出装置９が接続されている。 [Whole combine]
The combine includes a machine frame 1 formed by connecting a plurality of steel materials such as a square pipe material, and a traveling machine body having a pair of left and right crawler type traveling devices 2 provided under the machine body frame 1. A driving unit 4 having a driver's seat 3 is provided on one lateral side of the front portion of the traveling machine. A pre-cutting processing unit 5 for cutting rice or wheat planted culms and transporting the harvested culms to the rear is provided on the lateral side of the front portion of the traveling machine on the side opposite to the driving unit side. The pre-cutting processing unit 5 is provided so as to be able to move up and down in the lowering work state and the ascending non-working state. A threshing device 6 is provided at the rear of the traveling machine. The threshing device 6 has a threshing feed chain 7 to which the cut grain culm is supplied by the pre-cutting processing unit 5, and the stock root side portion of the cut grain culm is sandwiched and conveyed by the threshing feed chain 7 so that the tip side of the cut grain culm is transferred. It is inserted into a handling room (not shown) and threshed by a threshing cylinder (not shown) that rotates on the tip side, and a sorting process is performed to sort out the grains obtained by the threshing process and dust such as cut straw. .. A grain tank 8 for collecting and storing the grains obtained by the threshing device 6 is provided on the lateral side of the rear part of the traveling machine, which is opposite to the threshing device side. A grain discharging device 9 for discharging grains from the grain tank 8 is connected to the rear portion of the grain tank 8.

〔刈取前処理部の構成〕
図１に示されるように、刈取前処理部５は、刈取前処理部５の前部に設けられた刈取部５Ａと、刈取前処理部５の後部に設けられた供給搬送装置５Ｂと、を備えている。 [Structure of pre-cutting processing unit]
As shown in FIG. 1, the pre-cutting processing unit 5 includes a cutting unit 5A provided in the front portion of the pre-cutting processing unit 5 and a supply / transport device 5B provided in the rear portion of the pre-cutting processing unit 5. I have.

刈取部５Ａは、図１，２に示されるように、３条の植え付け条の植立穀稈を機体走行によって各別に導入する３つの引起経路１０と、各引起経路１０に設けられ、引起経路１０に導入した植立穀稈の引起しを行う引起装置１１と、引起装置１１の後方に設けられ、３条分の植立穀稈の株元を切断するバリカン形の刈取装置１２と、を備えている。各引起装置１１の後方に、引起し処理される植立穀稈の株元側部を刈取装置１２に掻き込み供給する無端回動掻込体１３が設けられている。 As shown in FIGS. 1 and 2, the cutting section 5A is provided in three raising paths 10 for introducing the planted culms of the three planting lines separately by traveling the machine, and each raising path 10 is provided with the raising path. A raising device 11 for raising the planted culm introduced in No. 10 and a clipper-shaped cutting device 12 provided behind the raising device 11 for cutting the stock of three rows of planted culm. I have. Behind each raising device 11, an endless rotary scraping body 13 is provided that scrapes and supplies the stock root side portion of the planted grain culm to be raised and processed to the cutting device 12.

供給搬送装置５Ｂは、図１，２に示されるように、刈取装置１２の上方において各無端回動掻込体１３の終端部に対応させて回転可能に設けられ、刈取穀稈の株元側部を刈取装置１２の後方に掻き込む回転輪体１５、３つの回転輪体１５のうちの左端の回転輪体１５からの１条分の刈取穀稈を合流箇所１４に搬送する左の中継搬送部２３と、３つの回転輪体１５のうちの右端の回転輪体１５からの刈取穀稈および３つの回転輪体１５のうちの中央の回転輪体１５から刈取穀稈を合流箇所１４に搬送する右の中継搬送部２４と、合流箇所１４に搬送された３条分の刈取穀稈を後方に搬送して脱穀フィードチェーン７の始端部に供給する合流搬送部１６と、を備えている。 As shown in FIGS. 1 and 2, the supply / transport device 5B is rotatably provided above the cutting device 12 so as to correspond to the end portion of each endless rotating scraping body 13, and is provided on the stock root side of the cutting grain culm. Left relay transport that transports one row of cut grain culms from the leftmost rotary wheel 15 of the three rotary wheels 15 to the confluence 14 Transport the cut grain culm from the rightmost rotating wheel 15 of the three rotating wheels 15 and the cut grain culm from the central rotating wheel 15 of the three rotating wheels 15 to the confluence 14. It is provided with a relay transport unit 24 on the right side, and a confluence transport unit 16 that transports three cut grain culms transported to the confluence portion 14 backward and supplies them to the start end portion of the grain removal feed chain 7.

合流搬送部１６は、図２に示されるように、合流箇所１４に搬送された刈取穀稈の株元側部を無端回動株元搬送体１７と株元搬送ガイド杆１８とによって後方に挟持搬送して脱穀フィードチェーン７の始端部に供給する株元挟持搬送部１６Ａと、合流箇所１４１９搬送された刈取穀稈の穂先側部を無端回動穂先搬送体１９と穂先搬送ガイド杆２０とによって脱穀フィードチェーン７に向けて係止搬送する穂先係止搬送部１６Ｂと、を備えている。穂先係止搬送部１６Ｂは、株元挟持搬送部１６Ａが刈取穀稈の株元側部を脱穀フィードチェーン７に供給するとき、刈取穀稈の穂先側部を脱穀フィードチェーン７よりも機体内側に引き寄せ、脱穀フィードチェーン７に供給される刈取穀稈を横倒れ姿勢に姿勢変更する。本実施形態では、合流搬送部１６の無端回動穂先搬送体１９と、右の中継搬送部２４の穂先係止搬送部を構成する無端回動穂先搬送体とは、同一の無端回動穂先搬送体によって構成されている。合流搬送部１６の無端回動穂先搬送体１９と、右の中継搬送部２４の無端回動穂先搬送体とを別々の無端回動穂先搬送体によって構成したものであってもよい。本実施形態では、無端回動株元搬送体１７は、突起付きリンクを有する無端回動チェーンによって構成されている。無端回動穂先搬送体１９は、リンクから延ばされた係止アームを有する無端回動チェーンによって構成されている。 As shown in FIG. 2, the merging transport unit 16 sandwiches the stock root side portion of the threshing culm transported to the merging point 14 rearward by the endless rotating stock root transport body 17 and the stock root transport guide rod 18. The stock root holding and transporting unit 16A that transports and supplies the threshing feed chain 7 to the starting end portion, and the tip side portion of the harvested grain culm transported at the confluence 1419 by the endless rotating tip transporting body 19 and the tip transporting guide rod 20. It is provided with a tip locking transport unit 16B for locking and transporting toward the threshing feed chain 7. In the tip locking transport section 16B, when the stock root holding transport section 16A supplies the stock root side portion of the harvested culm to the threshing feed chain 7, the tip side portion of the harvested culm is inside the threshing feed chain 7. Pull and change the posture of the harvested culm supplied to the threshing feed chain 7 to the sideways posture. In the present embodiment, the endless rotating tip carrier 19 of the merging transport section 16 and the endless rotating tip carrier constituting the tip locking transport section of the right relay transport section 24 are the same endless rotating tip carrier. It is made up of the body. The endless rotating tip transport body 19 of the merging transport section 16 and the endless rotating tip transport body of the right relay transport section 24 may be configured by separate endless rotating tip transport bodies. In the present embodiment, the endless rotating stock carrier 17 is configured by an endless rotating chain having a link with a protrusion. The endless rotating tip carrier 19 is composed of an endless rotating chain having a locking arm extended from the link.

〔株元搬送ガイド杆および穂先搬送ガイド杆の構成〕
図１、２に示されるように、供給搬送装置５Ｂに、株元搬送ガイド杆１８および穂先搬送ガイド杆２０を支持する支持フレーム２１が備えられている。支持フレーム２１は、前処理部フレーム２２（図１参照）から合流搬送部１６における搬送経路１６Ｒ（図４参照）の上方を機体横幅方向に通って搬送経路１６Ｒの横外側に向けて延ばされている。支持フレーム２１は、円形の管部材によって構成されている。 [Structure of stock origin transport guide rod and tip transport guide rod]
As shown in FIGS. 1 and 2, the supply transfer device 5B is provided with a support frame 21 for supporting the stock source transfer guide rod 18 and the tip transfer guide rod 20. The support frame 21 is extended from the pretreatment section frame 22 (see FIG. 1) toward the lateral outside of the transfer path 16R through the upper part of the transfer path 16R (see FIG. 4) in the merging transfer section 16 in the lateral width direction of the machine body. ing. The support frame 21 is composed of a circular tube member.

図３，４に示されるように、株元搬送ガイド杆１８および穂先搬送ガイド杆２０は、支持フレーム２１に脱着可能に支持される。合流搬送部１６の穀稈詰まりを解消する際、株元搬送ガイド杆１８および穂先搬送ガイド杆２０を支持フレーム２１から分離させることにより、株元搬送ガイド杆１８および穂先搬送ガイド杆２０を合流搬送部１６（供給搬送装置５Ｂ）から取り出せる。株元搬送ガイド杆１８および穂先搬送ガイド杆２０を支持フレーム２１に連結することにより、株元搬送ガイド杆１８および穂先搬送ガイド杆２０を合流搬送部１６（供給搬送装置５Ｂ）に付け戻せる。 As shown in FIGS. 3 and 4, the stock root transport guide rod 18 and the tip transport guide rod 20 are detachably supported by the support frame 21. When the grain culm clogging of the merging transport section 16 is cleared, the stock root transport guide rod 18 and the tip transport guide rod 20 are separated from the support frame 21 to merging and transport the stock root transport guide rod 18 and the tip transport guide rod 20. It can be taken out from the unit 16 (supply / transfer device 5B). By connecting the stock root transport guide rod 18 and the tip transport guide rod 20 to the support frame 21, the stock root transport guide rod 18 and the tip transport guide rod 20 can be attached back to the merging transport unit 16 (supply transport device 5B).

具体的には、図３，５に示されるように、支持フレーム２１の延伸端部に、株元搬送ガイド杆１８を支持する第１支持部２５が備えられている。第１支持部２５は、図５に示されるように、支持フレーム２１に連結されたベース部２６と、ベース部２６から後向きに延ばされた延長部２７とによって構成されている。ベース部２６は、支持フレーム２１にボルト連結されている。ベース部２６と延長部２７は、溶接によって連結されている。 Specifically, as shown in FIGS. 3 and 5, a first support portion 25 for supporting the stock transfer guide rod 18 is provided at the stretched end portion of the support frame 21. As shown in FIG. 5, the first support portion 25 is composed of a base portion 26 connected to the support frame 21 and an extension portion 27 extending backward from the base portion 26. The base portion 26 is bolted to the support frame 21. The base portion 26 and the extension portion 27 are connected by welding.

図３，４に示されるように、株元搬送ガイド杆１８に、株元搬送ガイド杆１８を支持フレーム２１に支持させる第１連結部２８が備えられている。第１連結部２８は、株元搬送ガイド杆１８の前後方向（長手方向）での中間部に連結部材２９を介して連結されている。第１連結部２８は、図４に示されるように、横板部２８ａと、横板部２８ａの端部から下向きに延びる縦板部２８ｂと、を備えている。第１連結部２８の横板部２８ａが延長部２７に備えられている載置面２７ａに載置され、第１連結部２８の縦板部２８ｂが延長部２７に備えられている縦辺部２７ｂに沿わされると、第１連結部２８が第１支持部２５に係合する。詳述すると、第１連結部２８は、延長部２７に係合する。 As shown in FIGS. 3 and 4, the stock origin transport guide rod 18 is provided with a first connecting portion 28 for supporting the stock origin transfer guide rod 18 on the support frame 21. The first connecting portion 28 is connected to the intermediate portion of the stock transfer guide rod 18 in the front-rear direction (longitudinal direction) via the connecting member 29. As shown in FIG. 4, the first connecting portion 28 includes a horizontal plate portion 28a and a vertical plate portion 28b extending downward from the end portion of the horizontal plate portion 28a. The horizontal plate portion 28a of the first connecting portion 28 is mounted on the mounting surface 27a provided on the extension portion 27, and the vertical plate portion 28b of the first connecting portion 28 is provided on the extension portion 27. Along 27b, the first connecting portion 28 engages with the first supporting portion 25. More specifically, the first connecting portion 28 engages with the extension portion 27.

図３，４に示されるように、第１連結部２８に、無端回動株元搬送体１７に対する株元搬送ガイド杆１８の位置決めを行う第１位置決め機構４０と、支持フレーム２１に対する株元搬送ガイド杆１８の固定を行う第１ロック機構５０が備えられている。 As shown in FIGS. A first lock mechanism 50 for fixing the guide rod 18 is provided.

図３，４に示されるように、第１連結部２８が第１支持部２５に係合され、第１ロック機構５０が作用状態にされると、株元搬送ガイド杆１８が第１ロック機構５０によって支持フレーム２１に固定される。株元搬送ガイド杆１８が支持フレーム２１に固定されると、無端回動株元搬送体１７に対する株元搬送ガイド杆１８の位置決めが第１位置決め機構４０によって行われ、株元搬送ガイド杆１８は、株元搬送ガイド杆１８の無端回動株元搬送体１７に対する位置決めが行われた状態で合流搬送部１６（供給搬送装置５Ｂ）に設置される。 As shown in FIGS. It is fixed to the support frame 21 by 50. When the stock source transport guide rod 18 is fixed to the support frame 21, the stock source transfer guide rod 18 is positioned with respect to the endless rotating stock source transport body 17 by the first positioning mechanism 40, and the stock source transfer guide rod 18 is used. , The stock transfer guide rod 18 is installed in the merging transfer unit 16 (supply transfer device 5B) in a state where the endless rotation of the stock transfer guide rod 18 is positioned with respect to the stock transfer body 17.

図３，４に示されるように、穂先搬送ガイド杆２０の前後方向（長手方向）での中間部に、穂先搬送ガイド杆２０を支持フレーム２１に支持させる第２連結部３０が備えられている。第２連結部３０は、第１連結部２８の上部に載置された状態で第１連結部２８に支持されるように構成されている。穂先搬送ガイド杆２０は、第１連結部２８を介して株元搬送ガイド杆１８に支持されることによって支持フレーム２１に支持される。第２連結部３０に、無端回動穂先搬送体１９に対する穂先搬送ガイド杆２０の位置決めを行う第２位置決め機構６０と、支持フレーム２１に対する穂先搬送ガイド杆２０の固定を行う第２ロック機構７０が備えられている。 As shown in FIGS. 3 and 4, a second connecting portion 30 for supporting the tip transport guide rod 20 on the support frame 21 is provided in the middle portion of the tip transport guide rod 20 in the front-rear direction (longitudinal direction). .. The second connecting portion 30 is configured to be supported by the first connecting portion 28 in a state of being placed on the upper portion of the first connecting portion 28. The tip transfer guide rod 20 is supported by the support frame 21 by being supported by the stock transfer guide rod 18 via the first connecting portion 28. The second connecting portion 30 has a second positioning mechanism 60 for positioning the tip transfer guide rod 20 with respect to the endless rotating tip transfer body 19, and a second lock mechanism 70 for fixing the tip transfer guide rod 20 with respect to the support frame 21. It is prepared.

第２連結部３０が第１連結部２８に載置され、第２ロック機構７０が作用状態にされ、かつ、第２位置決め機構６０が作用状態にされると、無端回動穂先搬送体１９に対する穂先搬送ガイド杆２０の位置決めが第２位置決め機構６０によって行われる状態で穂先搬送ガイド杆２０が支持フレーム２１に固定され、穂先搬送ガイド杆２０は、穂先搬送ガイド杆２０の無端回動穂先搬送体１９に対する位置合わせが行われた状態で合流搬送部１６（供給搬送装置５Ｂ）に設置される。 When the second connecting portion 30 is placed on the first connecting portion 28, the second lock mechanism 70 is put into the working state, and the second positioning mechanism 60 is put into the working state, the endless rotating tip carrier 19 is provided. The tip transport guide rod 20 is fixed to the support frame 21 in a state where the tip transport guide rod 20 is positioned by the second positioning mechanism 60, and the tip transport guide rod 20 is an endless rotating tip transport body of the tip transport guide rod 20. It is installed in the merging and transporting unit 16 (supply and transporting device 5B) in a state where the alignment with respect to 19 is performed.

〔第１位置決め機構〕
第１位置決め機構４０は、図６に示されるように、第１支持部２５に設けられた２本の位置決めピン４１、第１連結部２８に設けられた２つのピン孔部４２と、を備えている。 [First positioning mechanism]
As shown in FIG. 6, the first positioning mechanism 40 includes two positioning pins 41 provided in the first support portion 25 and two pin hole portions 42 provided in the first connecting portion 28. ing.

以下の説明において、図３，４に示されるように、第１支持部２５の載置面２７ａに沿うと共に位置決めピン４１の軸芯方向に沿う方向を第１方向［Ｘ］、２本の位置決めピン４１が並ぶ方向を第２方向［Ｙ］、第１支持部２５の載置面２７ａに対して直交する方向を第３方向［Ｚ］とする。 In the following description, as shown in FIGS. 3 and 4, the first direction [X] and the two positioning along the mounting surface 27a of the first support portion 25 and along the axial core direction of the positioning pin 41. The direction in which the pins 41 are lined up is defined as the second direction [Y], and the direction orthogonal to the mounting surface 27a of the first support portion 25 is defined as the third direction [Z].

第１位置決め機構４０においては、第１連結部２８が第１支持部２５に係合されると、２本の位置決めピン４１と第１連結部２８とが係合して作用状態になり、第２方向［Ｙ］における第１連結部２８の第１支持部２５に対する位置ずれが位置決めピン４１によって抑制され、かつ、第３方向［Ｚ］における第１連結部２８の第１支持部２５に対する位置ずれが位置決めピン４１によって抑制される。第１位置決め機構４０は、３次元方向［Ｘ、Ｙ，Ｚ］のうちの２次元方向［Ｙ，Ｚ］における株元搬送ガイド杆１８の無端回動株元搬送体１７に対する位置決めを行う。 In the first positioning mechanism 40, when the first connecting portion 28 is engaged with the first support portion 25, the two positioning pins 41 and the first connecting portion 28 are engaged with each other to enter an operating state, and the first position is set. The misalignment of the first connecting portion 28 with respect to the first supporting portion 25 in the two directions [Y] is suppressed by the positioning pin 41, and the position of the first connecting portion 28 with respect to the first supporting portion 25 in the third direction [Z]. The deviation is suppressed by the positioning pin 41. The first positioning mechanism 40 positions the stock source transport guide rod 18 with respect to the endless rotating stock source transport body 17 in the two-dimensional direction [Y, Z] of the three-dimensional directions [X, Y, Z].

〔第１ロック機構〕
第１ロック機構５０は、図６に示されるように、第１支持部２５の延長部２７における縦辺部２７ｂによって構成される受け部５１と、第１連結部２８の縦板部２８ｂによって構成され、受け部５１に面当りする当接部５２と、２本の位置決めピン４１を構成している２本の頭付きピン４１と、当接部５２に設けられた２つのピン孔部４２と、当接部５２に対して受け部側とは反対側に設けられたクサビ部材５３と、を備えている。 [First lock mechanism]
As shown in FIG. 6, the first lock mechanism 50 is composed of a receiving portion 51 formed by a vertical side portion 27b in an extension portion 27 of the first support portion 25 and a vertical plate portion 28b of the first connecting portion 28. The contact portion 52 that comes into contact with the receiving portion 51, the two headed pins 41 that form the two positioning pins 41, and the two pin hole portions 42 provided in the contact portion 52. A wedge member 53 provided on the side opposite to the receiving portion side with respect to the contact portion 52 is provided.

２本の頭付きピン４１は、受け部５１から当接部５２に向けて延出されている。２つのピン孔部４２の大きさは、頭付きピン４１の頭部４１ａよりも大きくされ、頭部４１ａのピン孔部４２への挿通が可能になっている。 The two headed pins 41 extend from the receiving portion 51 toward the abutting portion 52. The size of the two pin hole portions 42 is larger than that of the head portion 41a of the headed pin 41, and the head portion 41a can be inserted into the pin hole portion 42.

クサビ部材５３は、図４，６に示されるように、受け部５１に当接された当接部５２とピン孔部４２に挿通された頭付きピン４１の頭部４１ａとの間の隙間に嵌入する状態（作用状態）と、当接部５２と頭部４１Ａとの間の隙間から外される状態（作用解除）と、に姿勢変更可能である。図６に示されるように、クサビ部材５３の一端部が支持ピン５４を介して当接部５２に支持されている。クサビ部材５３は、支持ピン５４を揺動支点にして揺動操作されることによって作用状態と作用解除状態とに姿勢変更される。 As shown in FIGS. The posture can be changed between a state of fitting (action state) and a state of being removed from the gap between the contact portion 52 and the head 41A (action release). As shown in FIG. 6, one end of the wedge member 53 is supported by the contact portion 52 via the support pin 54. The posture of the wedge member 53 is changed between an action state and an action release state by swinging the support pin 54 as a swing fulcrum.

図２，３に示されるように、頭付きピン４１は、受け部５１から機体横外側向きに延出され、当接部５２は、受け部５１に対して機体横外側から当接されるように構成されている。頭付きピン４１をピン孔部４２に係脱させる操作、クサビ部材５３の姿勢切換操作を機体横外側から行い易い。 As shown in FIGS. It is configured in. It is easy to perform the operation of engaging and disengaging the pin 41 with the head to the pin hole portion 42 and the posture switching operation of the wedge member 53 from the lateral side of the machine body.

図４，６に示されるように、クサビ部材５３を作用状態にすると、クサビ部材５３が当接部５２と頭部４１ａとの間の隙間に嵌入して頭部４１ａを反力点にして当接部５２を押圧操作し、当接部５２が受け部５１に押圧されて第１連結部２８が第１支持部２５に圧接される。これにより、第１ロック機構５０が作用状態になって支持フレーム２１に対する株元搬送ガイド杆１８の第１方向〔Ｘ〕での固定を行う。図６に示されるように、作用状態になったクサビ部材５３と第１連結部２８とに脱着可能な保持ピン５５を装着することにより、クサビ部材５３が保持ピン５５によって作用状態の姿勢に保持される。第１ロック機構５０は、３次元方向［Ｘ，Ｙ，Ｚ］のうち、第１位置決め機構４０が行う位置決めの２次元方向［Ｙ，Ｚ］を除いた残りの１次元方向［Ｘ］における株元搬送ガイド杆１８の支持フレーム２１に対する固定を行う。 As shown in FIGS. The portion 52 is pressed, the contact portion 52 is pressed against the receiving portion 51, and the first connecting portion 28 is pressed against the first support portion 25. As a result, the first lock mechanism 50 is activated and the stock transfer guide rod 18 is fixed to the support frame 21 in the first direction [X]. As shown in FIG. 6, by attaching a detachable holding pin 55 to the wedge member 53 in the working state and the first connecting portion 28, the wedge member 53 is held in the posture in the working state by the holding pin 55. Will be done. The first lock mechanism 50 is a stock in the remaining one-dimensional direction [X] of the three-dimensional directions [X, Y, Z] excluding the two-dimensional direction [Y, Z] of the positioning performed by the first positioning mechanism 40. The original transport guide rod 18 is fixed to the support frame 21.

第１ロック機構５０が作用状態になって当接部５２が受け部５１に固定されるに伴い、第１連結部２８が２本の位置決めピン４１にきっちり係合して第１位置決め機構４０が作用状態になる。第１ロック機構５０による株元搬送ガイド杆１８の支持フレーム２１に対する固定が行われると同時に第１位置決め機構４０による株元搬送ガイド杆１８の無端回動株元搬送体１７に対する位置決めが行われる。 As the first locking mechanism 50 is activated and the contact portion 52 is fixed to the receiving portion 51, the first connecting portion 28 is tightly engaged with the two positioning pins 41 and the first positioning mechanism 40 is engaged. It becomes a working state. The stock source transport guide rod 18 is fixed to the support frame 21 by the first lock mechanism 50, and at the same time, the stock source transfer guide rod 18 is positioned with respect to the endless rotating stock source transport body 17 by the first positioning mechanism 40.

クサビ部材５３が解除状態に姿勢変更されると、クサビ部材５３による当接部５２の受け部５１に対する圧接が解除される。これにより、第１ロック機構５０が解除状態になって株元搬送ガイド杆１８の支持フレーム２１に対する固定を解除し、かつ、頭付きピン４１のピン孔部４２からの抜け出しが可能になる。 When the posture of the wedge member 53 is changed to the released state, the pressure contact of the contact portion 52 by the wedge member 53 with respect to the receiving portion 51 is released. As a result, the first lock mechanism 50 is released, the stock transfer guide rod 18 is released from being fixed to the support frame 21, and the headed pin 41 can be pulled out from the pin hole portion 42.

第１ロック機構５０を解除状態にして第１連結部２８を第１支持部２５から分離させると、株元搬送ガイド杆１８を支持フレーム２１から分離させて株元搬送ガイド杆１８を合流搬送部１６（供給搬送装置５Ｂ）から取り出すことができる。 When the first locking mechanism 50 is released and the first connecting portion 28 is separated from the first support portion 25, the stock origin transport guide rod 18 is separated from the support frame 21 and the stock origin transfer guide rod 18 is merged and transported. It can be taken out from 16 (supply / transfer device 5B).

第１ロック機構５０を作用状態にすると、無端回動株元搬送体１７に対する株元搬送ガイド杆１８の２次元方向［Ｙ，Ｚ］での位置決めが第１位置決め機構４０によって行われ、残りの１次元方向［Ｘ］における株元搬送ガイド杆１８の支持フレーム２１に対する固定が第１ロック機構５０によって行われ、３次元方向［Ｘ，Ｙ，Ｚ］における無端回動株元搬送体１７に対する株元搬送ガイド杆１８の位置決めが行われる状態で株元搬送ガイド杆１８を合流搬送部１６（供給搬送装置５Ｂ）に設置できる。 When the first lock mechanism 50 is put into the operating state, the stock source transport guide rod 18 is positioned in the two-dimensional direction [Y, Z] with respect to the endless rotating stock source transport body 17 by the first positioning mechanism 40, and the rest. The stock transfer guide rod 18 is fixed to the support frame 21 in the one-dimensional direction [X] by the first lock mechanism 50, and the stock is fixed to the endless rotating stock transfer body 17 in the three-dimensional direction [X, Y, Z]. The stock transfer guide rod 18 can be installed in the merging transfer unit 16 (supply transfer device 5B) in a state where the original transfer guide rod 18 is positioned.

〔第２位置決機構〕
第２位置決め機構６０は、図３，４に示されるように、第１の位置決めピン６１と、第２の位置決めピン６２と、第１のピン孔部６３と、第２のピン孔部６４と、を有している。 [Second position determination mechanism]
As shown in FIGS. 3 and 4, the second positioning mechanism 60 includes a first positioning pin 61, a second positioning pin 62, a first pin hole portion 63, and a second pin hole portion 64. ,have.

第１のピン孔部６３は、第２連結部３０と第１連結部２８とにわたって設けられている。第２のピン孔部６４は、図３に示されるように、第１のピン孔部６３に対して前後方向に離れた箇所において穂先搬送ガイド杆２０に設けられている。本実施形態では、第２のピン孔部６４は、第１のピン孔部６３に対して前方に離れている。第１の位置決めピン６１は、第１のピン孔部６３に係脱可能に係入するように構成されている。第２の位置決めピン６２は、支持フレーム２１に備えられた第２支持部６５に立設され、第２のピン孔部６４に係脱可能に係入するように構成されている。第２支持部６５は、支持フレーム２１に支持された左の中継搬送部２３が有する搬送ケースによって構成されている。 The first pin hole portion 63 is provided over the second connecting portion 30 and the first connecting portion 28. As shown in FIG. 3, the second pin hole portion 64 is provided in the tip transfer guide rod 20 at a position separated from the first pin hole portion 63 in the front-rear direction. In the present embodiment, the second pin hole portion 64 is separated forward from the first pin hole portion 63. The first positioning pin 61 is configured to engage with the first pin hole portion 63 so as to be engageable and detachable. The second positioning pin 62 is erected on the second support portion 65 provided in the support frame 21, and is configured to engage the second pin hole portion 64 in a detachable manner. The second support portion 65 is composed of a transport case included in the left relay transport section 23 supported by the support frame 21.

第２位置決め機構６０においては、第１方向［Ｘ］における穂先搬送ガイド杆２０の無端回動穂先搬送体１９に対する位置ずれが第１の位置決めピン６１および第２の位置決めピン６２によって抑制され、第２方向［Ｙ］における穂先搬送ガイド杆２０の無端回動穂先搬送体１９に対する位置ずれが第１の位置決めピン６１および第２の位置決めピン６２によって抑制される。 In the second positioning mechanism 60, the positional deviation of the tip transfer guide rod 20 with respect to the endless rotating tip carrier 19 in the first direction [X] is suppressed by the first positioning pin 61 and the second positioning pin 62, and the second positioning pin 62 is used. The misalignment of the tip transfer guide rod 20 with respect to the endless rotating tip transfer body 19 in the two directions [Y] is suppressed by the first positioning pin 61 and the second positioning pin 62.

第２位置決め機構６０は、第１の位置決めピン６１が第１のピン孔部６３に係入され、第２の位置決めピン６２が第２のピン孔部６４に係入されると、作用状態になり、穂先搬送ガイド杆２０の無端回動穂先搬送体１９に対する第１方向［Ｘ］での位置決めと、穂先搬送ガイド杆２０の無端回動穂先搬送体１９に対する第２方向［Ｙ］での位置決めとを行う。第２位置決め機構６０は、３次元方向［Ｘ，Ｙ，Ｚ］のうちの２次元方向［Ｘ，Ｙ］における穂先搬送ガイド杆２０の無端回動穂先搬送体１９に対する位置決めを行う。 The second positioning mechanism 60 enters an operating state when the first positioning pin 61 is engaged in the first pin hole portion 63 and the second positioning pin 62 is engaged in the second pin hole portion 64. Therefore, the positioning of the tip transport guide rod 20 with respect to the endless rotating tip carrier 19 in the first direction [X] and the positioning of the tip transport guide rod 20 with respect to the endless rotating tip carrier 19 in the second direction [Y]. And do. The second positioning mechanism 60 positions the tip transfer guide rod 20 with respect to the endless rotating tip transfer body 19 in the two-dimensional direction [X, Y] of the three-dimensional directions [X, Y, Z].

第２ロック機構７０は、図３，４に示されるように、手動による締め付け操作可能な締結具７１を有している。締結具７１は、図３，４に示されるように、第２連結部３０および第１連結部２８に上方から挿入し、第１連結部２８の裏側に備えられている係止部７２に係合させて第２連結部３０を第１連結部２８に締め付け連結するように構成されている。本実施形態では、締結具７１は、ノブ付きボルトによって構成されている。 As shown in FIGS. 3 and 4, the second lock mechanism 70 has a fastener 71 that can be manually tightened. As shown in FIGS. 3 and 4, the fastener 71 is inserted into the second connecting portion 30 and the first connecting portion 28 from above, and engages with the locking portion 72 provided on the back side of the first connecting portion 28. The second connecting portion 30 is configured to be combined and fastened and connected to the first connecting portion 28. In this embodiment, the fastener 71 is composed of a bolt with a knob.

第２ロック機構７０は、第２連結部３０が締結具７１によって第１連結部２８に締め付け固定されることにより、作用状態になり、穂先搬送ガイド杆２０が株元搬送ガイド杆１８に固定され、支持フレーム２１に対する穂先搬送ガイド杆２０の第３方向［Ｚ］での固定を行う。第２ロック機構７０は、３次元方向［Ｘ，Ｙ，Ｚ］のうち、第２位置決め機構６０が行う位置決めの２次元方向［Ｘ，Ｙ］を除いた残りの１次元方向［Ｚ］における穂先搬送ガイド杆２０の支持フレーム２１に対する固定を行う。 The second lock mechanism 70 is in an working state when the second connecting portion 30 is fastened and fixed to the first connecting portion 28 by the fastener 71, and the tip transfer guide rod 20 is fixed to the stock transfer guide rod 18. , The tip transfer guide rod 20 is fixed to the support frame 21 in the third direction [Z]. The second lock mechanism 70 is a tip in the remaining one-dimensional direction [Z] of the three-dimensional directions [X, Y, Z] excluding the two-dimensional direction [X, Y] of the positioning performed by the second positioning mechanism 60. The transport guide rod 20 is fixed to the support frame 21.

第２ロック機構７０を解除状態にして第２連結部３０を第１連結部２８から分離させるか、あるいは、第２ロック機構７０を作用させたままにし、第１ロック機構５０を解除状態にして株元搬送ガイド杆１８を支持フレーム２１から分離させる。すると、穂先搬送ガイド杆２０が支持フレーム２１から分離し、穂先搬送ガイド杆２０を合流搬送部１６（供給搬送装置５Ｂ）から取り出すことができる。 Either the second locking mechanism 70 is released and the second connecting portion 30 is separated from the first connecting portion 28, or the second locking mechanism 70 is left operating and the first locking mechanism 50 is released. The stock transfer guide rod 18 is separated from the support frame 21. Then, the tip transfer guide rod 20 is separated from the support frame 21, and the tip transfer guide rod 20 can be taken out from the merging transfer unit 16 (supply transfer device 5B).

第２位置決め機構６０を作用状態にし、第２ロック機構７０を作用状態にすると、２次元方向［Ｘ，Ｙ］における穂先搬送ガイド杆２０の無端回動穂先搬送体１９に対する位置決めが第２位置決め機構６０によって行われ、３次元方向［Ｘ，Ｙ，Ｚ］の残りの１次元方向［Ｚ］における穂先搬送ガイド杆２０の支持フレーム２１に対する固定が第２ロック機構７０によって行われ、３次元方向［Ｘ，Ｙ，Ｚ］における無端回動穂先搬送体１９に対する穂先搬送ガイド杆２０の位置決めが行われる状態で穂先搬送ガイド杆２０を合流搬送部１６（供給搬送装置５Ｂ）に設置できる。 When the second positioning mechanism 60 is put into the operating state and the second lock mechanism 70 is put into the working state, the positioning of the tip transfer guide rod 20 with respect to the endless rotating tip transfer body 19 in the two-dimensional direction [X, Y] is the second positioning mechanism. It is performed by 60, and the tip transfer guide rod 20 is fixed to the support frame 21 in the remaining one-dimensional direction [Z] in the three-dimensional direction [X, Y, Z] by the second lock mechanism 70, and is performed in the three-dimensional direction [Z]. The tip transport guide rod 20 can be installed in the merging transport unit 16 (supply transport device 5B) in a state where the tip transport guide rod 20 is positioned with respect to the endless rotating tip transport body 19 in [X, Y, Z].

〔別実施形態〕
（１）上記した実施形態では、穂先搬送ガイド杆２０が株元搬送ガイド杆１８を介して支持フレーム２１に支持される例を示したが、これに限らない。穂先搬送ガイド杆２０を支持フレーム２１に支持し、株元搬送ガイド杆１８を穂先搬送ガイド杆２０に支持することによって支持フレーム２１に支持するもの、あるいは、穂先搬送ガイド杆２０および株元搬送ガイド杆１８を別々に支持フレーム２１に支持するものであってもよい。 [Another Embodiment]
(1) In the above-described embodiment, an example is shown in which the tip transfer guide rod 20 is supported by the support frame 21 via the stock origin transfer guide rod 18, but the present invention is not limited to this. The tip transfer guide rod 20 is supported by the support frame 21, and the stock transfer guide rod 18 is supported by the support frame 21 by supporting the tip transfer guide rod 20, or the tip transfer guide rod 20 and the stock source transfer guide. The rod 18 may be separately supported by the support frame 21.

（２）上記した実施形態では、第１ロック機構５０にクサビ部材５３が備えられ、第２ロック機構７０に締結具７１が備えられた例を示したがこれに限らない。たとえば、第１ロック機構５０に締結具が備えられ、第２ロック機構７０にクサビ部材が備えられたもの、あるいは、第１ロック機構５０および第２ロック機構７０の両方にクサビ部材が備えられたもの、あるいは、第１ロック機構５０および第２ロック機構７０の両方に締結具が備えられたものであってもよい。また、第１ロック機構５０および第２ロック機構７０は、たとえばパッチン錠、カム体など、クサビ部材および締結具以外の各種の固定手段を備えるものであってもよい。 (2) In the above-described embodiment, an example is shown in which the wedge member 53 is provided in the first lock mechanism 50 and the fastener 71 is provided in the second lock mechanism 70, but the present invention is not limited to this. For example, the first lock mechanism 50 is provided with a fastener and the second lock mechanism 70 is provided with a wedge member, or both the first lock mechanism 50 and the second lock mechanism 70 are provided with a wedge member. Or, both the first locking mechanism 50 and the second locking mechanism 70 may be provided with fasteners. Further, the first lock mechanism 50 and the second lock mechanism 70 may be provided with various fixing means other than the wedge member and the fastener, such as a snap lock and a cam body.

本発明は、２条、３条以外の刈取り条数を備えるコンバインに適用できる。 The present invention can be applied to a combine having a number of cutting rows other than Articles 2 and 3.

５刈取前処理部
５Ａ刈取部
５Ｂ供給搬送装置
６脱穀装置
７脱穀フィードチェーン
１６Ａ株元挟持搬送部
１６Ｂ穂先係止搬送部
１７無端回動株元搬送体
１８株元搬送ガイド杆
１９無端回動穂先搬送体
２０穂先搬送ガイド杆
２１支持フレーム
２８第１連結部
３０第２連結部
４０第１位置決め機構
４１位置決めピン、頭付きピン
４１ａ頭部
４２ピン孔部
５０第１ロック機構
５１受け部
５２当接部
５３クサビ部材
６０第２位置決め機構
６１位置決めピン（第１の位置決めピン）
６２位置決めピン（第２の位置決めピン）
６３ピン孔部（第１のピン孔部）
６４ピン孔部（第２のピン孔部）
７０第２ロック機構
７１締結具 5 Pre-cutting processing unit 5A Cutting unit 5B Supply transport device 6 Threshing device 7 Threshing feed chain 16A Stock origin pinching transport unit 16B Tip locking transport unit 17 Endless rotation Stock origin transporter 18 Stock origin transport guide rod 19 Endless rotation tip Transport body 20 Tip transport guide rod 21 Support frame 28 1st connecting part 30 2nd connecting part 40 1st positioning mechanism 41 Positioning pin, pin with head 41a Head 42 Pin hole part 50 1st lock mechanism 51 Receiving part 52 Contact Part 53 Rabbit member 60 Second positioning mechanism 61 Positioning pin (first positioning pin)
62 Positioning pin (second positioning pin)
63 Pin hole (first pin hole)
64 pin hole (second pin hole)
70 2nd lock mechanism 71 Fastener

Claims

A cutting unit that cuts the root of the planted culm and cuts the planted culm, and a pre-cutting processing unit that has a supply transport device for transporting the harvested culm cut by the cutting unit to the rear.
A threshing device having a threshing feed chain to which the cut grain culm is supplied by the supply and transport device and performing a threshing process of the cut grain culm is provided.
The supply and transport device is provided with an endless rotation of the stock root side portion of the harvested grain culm and an endless rotation of the stock root holding and transporting portion of the stock root transporting body and the stock root transport guide rod. A tip locking transport unit for locking and transporting by a moving tip transport body and a tip transport guide rod is provided.
The stock transfer guide rod is provided with a first connecting portion for detachably connecting the stock transfer guide rod to the support frame.
At the first connecting portion, a first positioning mechanism for positioning the stock transfer guide rod with respect to the endless rotating stock transport body and a first lock mechanism for fixing the stock base transport guide rod to the support frame. And are prepared,
The tip transport guide rod is provided with a second connecting portion for detachably connecting the tip transport guide rod to the support frame.
The second connecting portion has a second positioning mechanism for positioning the tip transport guide rod with respect to the endless rotating tip transport body, and a second lock mechanism for fixing the tip transport guide rod to the support frame. Combines provided.

The stock transfer guide rod is supported by the support frame and is supported by the support frame.
The combine according to claim 1, wherein the tip transfer guide rod is supported by the support frame by being supported by the stock origin transfer guide rod.

The first positioning mechanism positions the stock transfer guide rod in the two-dimensional direction of the three-dimensional directions.
The first lock mechanism fixes the stock transfer guide rod in the remaining one-dimensional direction of the three-dimensional directions.
The second positioning mechanism positions the tip transfer guide rod in the two-dimensional direction of the three-dimensional directions.
The combine according to claim 1 or 2, wherein the second lock mechanism fixes the tip transfer guide rod in the remaining one-dimensional direction of the three-dimensional directions.

The combine according to any one of claims 1 to 3, wherein the first positioning mechanism and the second positioning mechanism have a pin hole portion and a positioning pin engaged in the pin hole portion.

The combine according to any one of claims 1 to 4, wherein at least one of the first lock mechanism and the second lock mechanism has a fastener that can be manually tightened.

At least one of the first lock mechanism and the second lock mechanism has a receiving portion, a headed pin extending from the receiving portion, and a pin hole portion larger than the head of the headed pin. The head of the headed pin and the head of the headed pin with the abutting portion in contact with the receiving portion and the abutting portion in contact with the receiving portion with the headed pin passed through the pin hole portion. A wedge member that is fitted into the gap between the contact portion and the contact portion is provided.
The combine according to any one of claims 1 to 5, wherein the wedge member is provided so as to be able to be stanced in a state of being fitted into the gap and a state of being removed from the gap.

The headed pin extends laterally outward from the receiving portion and extends toward the lateral side of the machine body.
The combine according to claim 6, wherein the contact portion is configured to be in contact with the receiving portion from the lateral side of the machine body.