JP2020103165A

JP2020103165A - combine

Info

Publication number: JP2020103165A
Application number: JP2018245776A
Authority: JP
Inventors: 梅林　竜司; Ryuji Umebayashi; 竜司梅林
Original assignee: Kubota Corp
Current assignee: Kubota Corp
Priority date: 2018-12-27
Filing date: 2018-12-27
Publication date: 2020-07-09
Anticipated expiration: 2038-12-27
Also published as: JP7050660B2

Abstract

To provide a combine that swingably includes a shredding device of the threshing waste straw around a swing shaft core for upper and lower directions, in which a shredding device is prevented from coming out of a supporting part by an unexpected lifting operating force, while making it easy to remove the shredding device out of the supporting part.SOLUTION: A combine includes a hinge mechanism 30 having a support shaft 32 provided with a supporting part 16, and a connecting member 33 provided with a shredding device 11 and formed of a hole part 33a where the support shaft 32 is inserted therein. There is included a retaining mechanism 40 capable of switching between an action state of inhibiting the support shaft 32 from getting away out of the hole part 33a and the shredding device 11 from being separated out of the supporting part 16, and an action release state of allowing the support shaft 32 to get away out of the hole part 33a. The retaining mechanism 40 includes a flange member 42 mounted to the support shaft 32 and having a portion protruding into an outer circumferential side from an outer diameter of the hole part 33a, and a bolt 43 for removably fixing the flange member 42 to the tip end by being fastened to the support shaft.SELECTED DRAWING: Figure 4

Description

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

圃場の作物を収穫する収穫部と、機体に支持されるとともに、収穫部によって収穫された作物を脱穀処理する脱穀装置と、脱穀装置の後部に接続され、かつ、脱穀装置が排出した脱穀排ワラを受け入れて細断処理する細断装置と、が備えられ、細断装置は、上下向きの揺動軸芯回りに揺動可能に支持されたコンバインがある。
この種のコンバインとしては、たとえば特許文献１に示されるコンバインがある。特許文献１に示されるコンバインでは、収穫部としての刈取り部が備えられ、細断装置としての排ワラカッタが備えられている。 A harvesting unit that harvests crops in the field, a threshing device that is supported by the airframe and that threshes the crops harvested by the harvesting unit, and a threshing discharge straw that is connected to the rear part of the threshing device and that is discharged by the threshing device. And a shredding device for shredding the shredder, and the shredding device is a combine that is swingably supported around a vertically swinging axis.
An example of this type of combine is a combine disclosed in Patent Document 1. The combine shown in Patent Document 1 is provided with a mowing section as a harvesting section and an exhausting wall cutter as a shredding device.

特許第４８２９４８８号公報Japanese Patent No. 4829488

上記したコンバインにおいて、機体側に設けられ、細断装置が上下向きの揺動軸芯回りに揺動可能なように、細断装置を下方から支持する支持部と、支持部及び細断装置の一方に前記揺動軸芯を軸芯とする状態で設けられた機体上下向きの支軸と、支持部及び細断装置の他方に設けられるとともに、支軸が挿入される穴部が形成された連結部材と、を有し、かつ、細断装置が揺動軸芯回りに揺動するのを可能にするヒンジ機構を備えることにより、細断装置の揺動が可能になる。
支軸が穴部から抜け出して細断装置が支持部から上方に離間することが許容されるようにヒンジ機構構を構成することにより、支軸を連結部材から抜き外せば細断装置を支持部から取り外すことができ、細断装置の点検や修理などのメンテンナスを行う際、細断装置を支持部から取り外しやすい。しかし、機体を後進させて細断装置の下部が畦に当たった際など、細断装置を持ち上げる操作力が発生すると、細断装置が支持部から外れる虞れがある。 In the above combine, provided on the machine body side, a supporting portion that supports the shredding device from below so that the shredding device can swing around a vertically-oriented swing axis, and a support portion and a shredding device. On one side, a vertical support shaft provided with the swing shaft as an axis, and on the other side of the support and the shredding device, a hole into which the support shaft is inserted is formed. The shredding device can be swung by including a connecting member and a hinge mechanism that enables the shredding device to swing around the swing axis.
By constructing the hinge mechanism so that the supporting shaft can be removed from the hole and the shredding device can be separated upward from the supporting part, the supporting device can be supported by removing the supporting shaft from the connecting member. It is easy to remove the shredder from the support when performing maintenance such as inspection and repair of the shredder. However, when an operating force for lifting the shredder is generated, such as when the lower part of the shredder hits a ridge by moving the machine body backward, the shredder may be disengaged from the support portion.

本発明は、構造簡単な対策で細断装置を取り外しやすくしつつ、細断装置の不測な外れを防止できるコンバインを提供する。 The present invention provides a combine capable of easily removing the shredding device with a simple structure and at the same time preventing an unexpected disengagement of the shredding device.

本発明によるコンバインは、
圃場の作物を収穫する収穫部と、機体に支持されるとともに、前記収穫部によって収穫された作物を脱穀処理する脱穀装置と、前記脱穀装置の後部に接続され、かつ、前記脱穀装置が排出した脱穀排ワラを受け入れて細断処理する細断装置と、前記機体側に設けられ、前記細断装置が上下向きの揺動軸芯回りに揺動可能なように、前記細断装置を下方から支持する支持部と、前記支持部及び前記細断装置の一方に前記揺動軸芯を軸芯とする状態で設けられた機体上下向きの支軸と、前記支持部及び前記細断装置の他方に設けられるとともに、前記支軸が挿入される穴部が形成された連結部材と、を有し、かつ、前記細断装置が前記揺動軸芯回りに揺動するのを可能にするヒンジ機構と、が備えられ、前記ヒンジ機構に、前記支軸が前記穴部から抜け出して前記細断装置が前記支持部から上方に離間するのを阻止する作用状態と、前記支軸が前記穴部から抜け出すのを許容する作用解除状態と、に切り換え可能な抜止め機構が備えられ、前記抜止め機構に、前記支軸のうち、前記支軸を前記連結部材に挿入する挿入方向における先端部に取付けられ、前記穴部の外径よりも外周側に突出する部分を有する鍔部材と、前記挿入方向に沿って前記先端部に締結されることで前記鍔部材を前記先端部に着脱可能に固定するボルトと、が備えられている。 The combine according to the present invention is
A harvesting unit for harvesting crops in the field, a threshing device that is supported by an airframe and that threshes the crops harvested by the harvesting unit, and is connected to the rear part of the threshing device, and the threshing device discharges. A shredding device that receives threshing discharge straws and shreds it, and is provided on the machine side, so that the shredder can swing about a vertically swinging shaft center, the shredder is from below. A supporting portion for supporting, a vertical support shaft provided on one of the supporting portion and the shredding device with the swing axis as an axis, and the other of the supporting portion and the shredding device. And a connecting member provided with a hole into which the support shaft is inserted, the hinge mechanism allowing the shredding device to swing about the swing shaft core. And an operation state in which the supporting shaft is prevented from coming out of the hole and the shredding device being separated upward from the supporting portion, and the supporting shaft is provided from the hole. A retaining mechanism that can be switched between an action release state that allows the retainer to come out and a retaining mechanism that is switchable to the retaining mechanism is attached to the tip of the support shaft in the insertion direction in which the support shaft is inserted into the connecting member. And a flange member having a portion projecting to the outer peripheral side with respect to the outer diameter of the hole portion, and being fastened to the distal end portion along the insertion direction, the flange member is detachably fixed to the distal end portion. Bolts are provided.

本構成によると、ボルト及び鍔部材を支軸から外すことにより、抜止め機構が作用解除状態に切り換わって支軸が穴部から抜け出して細断装置が支持部から上方に離間するのを許容するので、細断装置を支持部から取り外すことができる。ボルト及び鍔部材を支軸に取付けることにより、抜け止め機構が作用状態に切り換わって支軸が穴部から抜け出して細断装置が支持部から上方に離間するのを阻止するので、細断装置を持ち上げる操作力が発生しても細断装置が支持部から外れない。 According to this structure, by removing the bolt and the flange member from the support shaft, the retaining mechanism is switched to the operation release state, the support shaft is pulled out of the hole, and the shredding device is allowed to move upward from the support portion. Therefore, the shredding device can be removed from the support. By attaching the bolt and the collar member to the support shaft, the retaining mechanism switches to the operating state to prevent the support shaft from slipping out of the hole and separating the shredding device upward from the support part. The shredding device does not come off from the support even if an operation force to lift the is generated.

従って、ボルト及び鍔部材を備える構造簡単な対策を講じるだけで安価に、細断装置を支持部から取り外しやすいようにでき、かつ、細断装置を不測な持上げ操作力によって外れないようにできる。 Therefore, it is possible to easily remove the shredding device from the support portion at a low cost and prevent the shredding device from coming off due to an unexpected lifting operation force only by taking a simple measure against the structure including the bolt and the collar member.

本発明においては、前記抜止め機構に、前記支軸における前記穴部から前記挿入方向に向けて突出する部分に外嵌するとともに前記鍔部材と前記連結部材とに亘るように前記挿入方向に沿って延び、前記ボルトを締め付けることで前記鍔部材によって前記連結部材における前記穴部の外周部に当て付けられる筒部材を備えられていると好適である。 In the present invention, the retaining mechanism is fitted onto a portion of the support shaft projecting from the hole portion toward the inserting direction, and extends along the inserting direction so as to extend over the collar member and the connecting member. It is preferable that a tubular member is provided that extends toward the outer periphery of the hole in the connecting member by the collar member by tightening the bolt.

本構成によると、連結部材を支軸に外嵌させるために連結部材に備えるボス部として筒部材が機能するので、連結部材と支軸との間のガタ付きや傾きを抑制でき、細断装置をガタ付いたり、傾いたりし難いように支持できる。 According to this configuration, since the tubular member functions as a boss portion provided on the connecting member for externally fitting the connecting member to the support shaft, rattling and tilt between the connecting member and the support shaft can be suppressed, and the shredding device. Can be supported so that it does not rattle or tilt.

本発明においては、前記筒部材は、前記外周部に固定されていると好適である。 In the present invention, the tubular member is preferably fixed to the outer peripheral portion.

本構成によると、連結部材を支軸に外嵌させるために連結部材に固定状態で備えるボス部として筒部材が機能するので、連結部材と支軸との間のガタ付きや傾きを効果的に抑制でき、細断装置のガタ付いたり、傾いたりし難いようにしっかり支持できる。 According to this configuration, since the tubular member functions as a boss portion that is provided in the connecting member in a fixed state for externally fitting the connecting member to the support shaft, it is possible to effectively prevent backlash and inclination between the connecting member and the support shaft. It can be suppressed and can be firmly supported so that the shredder does not rattle or tilt.

本発明においては、前記ヒンジ機構として、上側の上側ヒンジ機構と、下側の下側ヒンジ機構とが備えられ、前記下側ヒンジ機構における前記抜止め機構にのみ、前記筒部材が備えられていると好適である。 In the present invention, an upper upper hinge mechanism and a lower lower hinge mechanism are provided as the hinge mechanism, and the tubular member is provided only in the retaining mechanism of the lower hinge mechanism. Is suitable.

本構成においては、細断装置がガタ付いたり、傾いたりする場合の支点側になる下側ヒンジ機構において、連結部材のボス部として筒部材が機能するので、下側ヒンジ機構のみに筒部材を備える構造簡単な対策によって細断装置のガタ付きや傾きを効果的に防止できる。 In this configuration, since the tubular member functions as the boss portion of the connecting member in the lower hinge mechanism that serves as the fulcrum side when the shredder rattles or tilts, the tubular member is provided only in the lower hinge mechanism. Structure provided With simple measures, it is possible to effectively prevent the shredder from rattling and tilting.

本発明においては、前記支持部及び前記細断装置の一方に、前記支軸を支持する軸支持部材が備えられ、前記ヒンジ機構として、上側の上側ヒンジ機構と、下側の下側ヒンジ機構と、が備えられ、前記上側ヒンジ機構及び前記下側ヒンジ機構の一方において、前記軸支持部材と前記連結部材とが上下方向に接触し、かつ、前記上側ヒンジ機構及び前記下側ヒンジ機構の他方において、前記軸支持部材と前記連結部材とが上下方向に離間していると好適である。 In the present invention, one of the support portion and the shredding device is provided with a shaft support member that supports the support shaft, and the hinge mechanism includes an upper upper hinge mechanism and a lower lower hinge mechanism. In one of the upper hinge mechanism and the lower hinge mechanism, the shaft support member and the connecting member are in vertical contact with each other, and in the other of the upper hinge mechanism and the lower hinge mechanism. It is preferable that the shaft support member and the connecting member are vertically separated from each other.

上側ヒンジ機構及び下側ヒンジ機構の両方において軸支持部材と連結部材とが接触するようにして上側ヒンジ機構及び下側ヒンジ機構を製作するよりも低い製作精度で上側ヒンジ機構及び下側ヒンジ機構を製作しても、製作精度に起因する組付け誤差が軸支持部材と連結部材との離間によって吸収されて細断装置を組付け不良が無い状態で支持できるので、細断装置の支持構造を製作容易に得られる。 In both the upper hinge mechanism and the lower hinge mechanism, the upper hinge mechanism and the lower hinge mechanism are manufactured with a lower manufacturing accuracy than that of the upper hinge mechanism and the lower hinge mechanism in which the shaft support member and the connecting member are in contact with each other. Even if it is manufactured, since the assembly error due to the manufacturing accuracy is absorbed by the separation between the shaft support member and the connecting member, the shredding device can be supported without assembly failure, so a support structure for the shredding device is manufactured. Easily obtained.

本発明において、前記連結部材は、板状部材であると好適である。 In the present invention, the connecting member is preferably a plate-shaped member.

本構成によると、連結部材が簡素な形状の部材になるので、ヒンジ機構をコンパクトに得ることができる。 According to this configuration, since the connecting member is a member having a simple shape, the hinge mechanism can be compactly obtained.

コンバインの全体を示す左側面図である。It is a left side view showing the whole combine. コンバインの後部を示す平面図である。It is a top view which shows the rear part of a combine. 細断装置の支持構造を示す後面図である。It is a rear view which shows the support structure of a shredder. 細断装置の支持構造を示す側面図である。It is a side view which shows the support structure of a shredder. 細断装置の開状態におけるヒンジ機構を示す平面図である。It is a top view which shows the hinge mechanism in the open state of a shredder. 別の実施形態を備える細断装置の支持構造を示す側面図である。It is a side view which shows the support structure of the shredding device provided with another embodiment.

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」、図１の紙面表側の方向を「機体左方」、紙面裏側の方向を「機体右方」とする。 An embodiment, which is an example of the present invention, will be described below with reference to the drawings.
In the following description, regarding the traveling machine body of the combine, the direction of the arrow F shown in FIG. 1 is “the machine body front”, the direction of the arrow B is the “machine body rearward”, the direction of the arrow U is the “machine body upward”, and the arrow D is the direction shown in FIG. 1. 1 is referred to as "the lower side of the machine", the direction of the front side of the plane of FIG. 1 is "the left side of the plane", and the direction of the back side of the plane is "the right side of the plane".

〔コンバインの全体について〕
図１に示されるように、コンバインは、角パイプ材などの複数の棒状材を連結して構成された機体フレーム１を有し、かつ、機体フレーム１の下部に装備さ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。走行機体の前部の右横側部分に、キャビン３を有する運転部４が形成されている。走行機体の前部に、収穫搬送部５が設けられている。収穫搬送部５は、下降作業状態と上昇非作業状態とにわたって上下揺動可能な状態で走行機体の前部の左横側部分に支持されている。収穫搬送部５は、収穫搬送部５の前部に設けられた収穫部５Ａと、収穫搬送部５の後部に設けられた搬送部５Ｂとを備えている。収穫部５Ａは、圃場の複数条の植付条に植立する作物としての稲、麦などの植立茎稈を引起装置６によって引き起こしながら、植立茎稈の株元をバリカン型の刈取装置７によって刈り取る収穫を行う。搬送部５Ｂは、収穫部５Ａが収穫した刈取茎稈を後方に搬送する。走行機体の後部に、脱穀装置８及び穀粒タンク９が横並びで設けられている。脱穀装置８は、搬送部５Ｂの後方に位置し、穀粒タンク９は、運転部４の後方に位置している。脱穀装置８は、脱穀機体の左横外側方に設けられた脱穀フィードチェーン１０を備え、搬送部５Ｂが搬送してきた刈取茎稈の株元側部分を脱穀フィードチェーン１０によって脱穀装置８の後方に向けて挟持搬送し、刈取茎稈の穂先側部分を扱室（図示せず）に挿入して脱穀処理し、脱穀粒をワラ屑などの塵埃と選別する選別処理を行う。脱穀装置８の後部に細断装置１１が接続可能に構成されている。脱穀装置８の左横側方と細断装置１１の左横側方とにわたり、エンジン（図示せず）の動力を脱穀装置８の選別部（図示せず）、及び、細断装置１１に伝達する動力伝達装置（図示せず）と、動力伝達装置などを横外側から覆う横カバー１２とが設けられている。横カバー１２は、複数枚の分割横カバーによって構成されている。脱穀装置８の後部に、脱穀フィードチェーン１０が扱室から排出した脱穀排ワラを細断装置１１に供給する排ワラ搬送装置１３と、排ワラ搬送装置１３の搬送終端側部分を覆う搬送カバー１３Ａとが設けられている。穀粒タンク９は、脱穀装置８によって得られた脱穀粒を揚穀装置１４によって供給されて貯留する。穀粒タンク９に貯留された脱穀粒を取り出す穀粒排出装置１５が穀粒タンク９の後部から延出されている。 [About the combine as a whole]
As shown in FIG. 1, the combine has a machine body frame 1 configured by connecting a plurality of rod-shaped materials such as square pipe materials, and a pair of left and right crawler type installed at the bottom of the machine body frame 1. A traveling machine body having the traveling device 2 is provided. A driving unit 4 having a cabin 3 is formed on the right side portion of the front part of the traveling machine body. A harvesting and conveying section 5 is provided at the front of the traveling machine body. The harvesting and transporting section 5 is supported on the left lateral side portion of the front portion of the traveling machine body in a vertically swingable state in a descending working state and a rising non-working state. The harvesting and transporting section 5 includes a harvesting section 5A provided at the front of the harvesting and transporting section 5 and a transporting section 5B provided at the rear of the harvesting and transporting section 5. The harvesting unit 5A uses the pulling device 6 to raise the planting stem culms such as rice and wheat as crops to be planted in a plurality of planting lines in the field, while removing the planter of the planting stem culm from a clipper type cutting device. Harvest according to 7. The transport unit 5B transports the cut stalks collected by the harvesting unit 5A backward. A threshing device 8 and a grain tank 9 are provided side by side at the rear of the traveling machine body. The threshing device 8 is located behind the transport unit 5B, and the grain tank 9 is located behind the operating unit 4. The threshing device 8 is provided with a threshing feed chain 10 provided on the left lateral outer side of the threshing machine body, and the stocker side portion of the harvested stalks carried by the transport unit 5B is provided behind the threshing device 8 by the threshing feed chain 10. The cutting and culm is inserted into a handling room (not shown) for threshing treatment, and the threshing grains are sorted from dust such as straw dust. The shredder 11 is connectable to the rear of the threshing device 8. The power of the engine (not shown) is transmitted to the sorting unit (not shown) of the threshing device 8 and the shredding device 11 across the left lateral side of the threshing device 8 and the left lateral side of the shredding device 11. A power transmission device (not shown) for operating the power transmission device and a lateral cover 12 for covering the power transmission device and the like from the lateral outside are provided. The horizontal cover 12 is composed of a plurality of divided horizontal covers. In the rear part of the threshing device 8, a waste straw conveying device 13 for supplying the threshing discharge straw discharged from the handling chamber by the threshing feed chain 10 to the shredding device 11, and a transport cover 13A covering the transport end side portion of the waste straw transporting device 13. And are provided. The grain tank 9 is supplied with the threshing device 14 and stores the threshed grains obtained by the threshing device 8. A grain discharging device 15 for taking out the threshed grains stored in the grain tank 9 is extended from the rear part of the grain tank 9.

〔細断装置の構成について〕
図１，２に示されるように、細断装置１１は、排ワラ搬送装置１３の搬送終端側部分の下方に位置する細断ケース２０、及び、細断ケース２０の下部から下向きに延ばされた放出ケース２１を備えている。図１，３に示されるように、細断ケース２０の内部に、回転カッター２２及び供給回転体２３が回転可能に設けられている。回転カッター２２及び供給回転体２３は、細断ケース２０の横幅方向に沿った回転軸２２ａ，２３ａを有し、回転軸２２ａ，２３ａの軸芯を回転中心にして回転駆動される。 [Structure of shredder]
As shown in FIGS. 1 and 2, the shredding device 11 is extended downward from the shredding case 20 located below the conveyance end side portion of the waste straw conveying device 13 and the lower part of the shredding case 20. The discharge case 21 is provided. As shown in FIGS. 1 and 3, a rotary cutter 22 and a supply rotary member 23 are rotatably provided inside the shredded case 20. The rotary cutter 22 and the supply rotary body 23 have rotary shafts 22a and 23a along the lateral width direction of the shredded case 20, and are driven to rotate with the shaft center of the rotary shafts 22a and 23a as the center of rotation.

図２，３に示されるように、細断ケース２０の右横側部分と、機体側に設けられた支持部１６とが細断ケース２０の上下２箇所に設けられたヒンジ機構３０を介して連結されている。支持部１６は、機体フレーム１の後部に立設された支柱によって構成されている。細断装置１１は、上下のヒンジ機構３０が有する機体上下向きの揺動軸芯Ｐ回りに、図２に実線で示される如く細断ケース２０が脱穀装置８の後壁８ａに沿った閉状態と、図２に二点鎖線で示される如く細断ケース２０が後壁８ａから機体右横側方に離れた開状態とにわたって揺動可能な状態で支持部１６に支持されている。細断装置１１を閉状態にした場合、細断ケース２０の左横側部分と脱穀装置８の脱穀機体とにわたって設けられたロック機構（図示せず）を作用させることにより、細断装置１１を閉状態に固定できる。本実施形態では、支持部１６は、機体フレーム１に立設された支柱によって構成されているが、これに限らない。たとえば、支持部１６としては、脱穀装置８を採用することが可能である。 As shown in FIGS. 2 and 3, the right lateral side portion of the shredding case 20 and the support portion 16 provided on the machine body side are interposed via hinge mechanisms 30 provided at two upper and lower portions of the shredding case 20. It is connected. The support portion 16 is composed of a column that is erected on the rear portion of the machine body frame 1. In the shredder 11, the shredded case 20 is in a closed state along the rear wall 8a of the threshing device 8 as shown by the solid line in FIG. 2, the shredder case 20 is supported by the support portion 16 in a swingable state in an open state in which the shredder case 20 is separated from the rear wall 8a to the right lateral side of the machine body. When the shredding device 11 is closed, the shredding device 11 is operated by operating a lock mechanism (not shown) provided over the left side portion of the shredding case 20 and the threshing machine body of the threshing device 8. Can be fixed in the closed state. In the present embodiment, the support portion 16 is composed of a pillar that is erected on the machine body frame 1, but is not limited to this. For example, the threshing device 8 can be used as the support unit 16.

細断装置１１においては、細断装置１１を閉状態にすると、細断ケース２０が排ワラ搬送装置１３に接続され、脱穀装置８から排出される脱穀排ワラの細断処理が可能になる。
具体的には、細断装置１１を閉じ状態にすると、細断ケース２０の上部に上向きに開口されている排ワラ投入口が排ワラ搬送装置１３の搬送終端部分の下方に位置する。排ワラ投入口の揺動蓋２４（図２，３参照）を開くと、排ワラ搬送装置１３が搬送してきた脱穀排ワラが排ワラ投入口に落下されて細断ケース２０の内部に受け入れられる。受け入れられた脱穀排ワラが供給回転体２３及び回転カッター２２の回転によって供給回転体２３と回転カッター２２との間に供給される。供給された脱穀排ワラが回転カッター２２の回軸芯方向に並んでいる回転刃２２ｂ（図３参照）によって稈身方向に切断される。切断によって得られた細断ワラが細断ケース２０から放出ケース２１の内部に落下され、放出ケース２１から圃場に放出される。 In the shredding device 11, when the shredding device 11 is closed, the shredding case 20 is connected to the waste straw conveying device 13, and the threshing discharge straw discharged from the threshing device 8 can be shredded.
Specifically, when the shredder 11 is in the closed state, the discharged straw input port that is opened upward in the upper portion of the shredded case 20 is located below the transport end portion of the discharged straw transporter 13. When the rocking lid 24 (see FIGS. 2 and 3) of the discharge straw input port is opened, the threshing discharge straw conveyed by the discharge straw transfer device 13 is dropped into the discharge straw input port and received in the shredded case 20. .. The received threshing discharge straw is supplied between the supply rotary body 23 and the rotary cutter 22 by the rotation of the supply rotary body 23 and the rotary cutter 22. The supplied threshing discharge straws are cut in the stem direction by the rotary blades 22b (see FIG. 3) arranged in the direction of the axis of rotation of the rotary cutter 22. The shredded straw obtained by cutting is dropped from the shredded case 20 into the discharge case 21, and is discharged from the discharge case 21 to the field.

細断装置１１においては、細断装置１１を開状態にすることにより、脱穀装置８の後壁８ａに後向きに開口された点検口が開かれ、脱穀装置内の点検や清掃が可能になる。また、脱穀装置８の揺動選別装置（図示せず）の取り出しが可能になる。 In the shredding device 11, when the shredding device 11 is opened, the inspection port opened rearward in the rear wall 8a of the threshing device 8 is opened, and the inspection and cleaning inside the threshing device can be performed. Further, it becomes possible to take out the swing selection device (not shown) of the threshing device 8.

〔ヒンジ機構の構成について〕
上側の上側ヒンジ機構３０Ｕ、及び、下側の下側ヒンジ機構３０Ｄのそれぞれは、図３，４，５に示されるように、支持部１６に設けられ、揺動軸芯Ｐを有する機体上下向きの支軸３２と、支軸３２に外嵌された状態で細断ケース２０に設けられた連結部材３３と、を備えている。支軸３２は、支持部１６から延びる支持アーム３１の先端部の上下２箇所に設けられた軸支持部材３１ａに支持されることにより、支持部１６に支持されている。連結部材３３は、細断ケース２０から延ばされた取付け杆２０ａに支持されていることにより、細断ケース２０に設けられている。本実施形態では、上側ヒンジ機構３０Ｕ及び下側ヒンジ機構３０Ｄの連結部材３３は、板状部材によって構成されているが、これに限らない。たとえば、ブロック状の部材、板部材を箱状に組み合わせた部材などを採用してもよい。 [About the structure of the hinge mechanism]
The upper hinge mechanism 30U on the upper side and the lower hinge mechanism 30D on the lower side are respectively provided in the supporting portion 16 and have a swing axis core P in the vertical direction of the machine body as shown in FIGS. The support shaft 32 and the connecting member 33 provided on the shredded case 20 while being fitted onto the support shaft 32. The support shaft 32 is supported by the support portion 16 by being supported by shaft support members 31 a provided at two positions above and below the tip of the support arm 31 extending from the support portion 16. The connecting member 33 is provided on the shredding case 20 by being supported by the attachment rod 20 a extending from the shredding case 20. In the present embodiment, the connecting member 33 of the upper hinge mechanism 30U and the lower hinge mechanism 30D is formed of a plate-shaped member, but is not limited to this. For example, a block-shaped member, a member formed by combining plate members in a box shape, or the like may be adopted.

図４に示されるように、上側ヒンジ機構３０Ｕ及び下側ヒンジ機構３０Ｄのそれぞれにおける連結部材３３に、連結部材３３を支軸３２に上方から脱着可能かつ回転可能に外嵌させる穴部３３ａが形成されている。上側ヒンジ機構３０Ｕにおいて、連結部材３３と上の軸支持部材３１ａとが接触して軸支持部材３１ａが連結部材３３を下方から受け止めて支持するように構成されている。下側ヒンジ機構３０Ｄにおいて、連結部材３３と上の軸支持部材３１ａとが離間し、連結部材３３と上の軸支持部材３１ａとの間に隙間Ｓが形成されるよう構成されている。 As shown in FIG. 4, a hole 33a is formed in the connecting member 33 of each of the upper hinge mechanism 30U and the lower hinge mechanism 30D so that the connecting member 33 can be detachably and rotatably fitted onto the support shaft 32 from above. Has been done. In the upper hinge mechanism 30U, the connecting member 33 and the upper shaft supporting member 31a contact each other, and the shaft supporting member 31a receives and supports the connecting member 33 from below. In the lower hinge mechanism 30D, the connecting member 33 and the upper shaft supporting member 31a are separated from each other, and a gap S is formed between the connecting member 33 and the upper shaft supporting member 31a.

〔抜止め機構の構成について〕
図３，４に示されるように、上側ヒンジ機構３０Ｕに、細断装置１１の外れ止めを行う抜止め機構４０が備えられている。 [Structure of retaining mechanism]
As shown in FIGS. 3 and 4, the upper hinge mechanism 30U is provided with a retaining mechanism 40 that prevents the shredder 11 from coming off.

抜止め機構４０は、図４に示されるように、支軸３２のうち、連結部材３３から上方に突出する部分に外嵌された筒部材４１と、支軸３２のうち、筒部材４１から上方に突出する先端部に取付けられた鍔部材４２と、支軸３２のうち、鍔部材４２から上方に突出する先端部に締結されたボルト４３と、を備えている。 As shown in FIG. 4, the retaining mechanism 40 includes a tubular member 41 externally fitted to a portion of the support shaft 32 projecting upward from the connecting member 33, and an upper portion of the support shaft 32 above the tubular member 41. The flange member 42 is attached to the tip end portion that protrudes upward, and the bolt 43 that is fastened to the tip end portion of the support shaft 32 that protrudes upward from the flange member 42.

筒部材４１は、連結部材３３の穴部３３ａの外径よりも外周側に突出する部分を有するよう構成されている。具体的には、筒部材４１は、穴部３３ａの外径よりも大きい外径を有する円筒部材によって構成されている。筒部材４１は、支軸３２のうち、穴部３３ａから連結部材３３に対する挿入方向に向けて突出する部分に外嵌されている。鍔部材４２は、連結部材３３の穴部３３ａの外径よりも外周側に突出する部分を有するよう構成されている。具体的は、鍔部材４２は、穴部３３ａの外径よりも大きい外径を有るする円板部材によって構成されている。鍔部材４２は、支軸３２のうち、筒部材４１から連結部材３３に対する挿入方向に向けて突出する先端部に取付けられている。ボルト４３は、支軸３２が穴部３３ａに挿入される方向に沿って支軸３２に締結されるように構成され、かつ、支軸３２に締結されることで、ボルト４３の頭部によって鍔部材４２を上方から押圧して、鍔部材４２を支軸３２に取付けるように、かつ、筒部材４１を連結部材３３における穴部３３ａの外周部に当て付けるように構成されている。ボルト４３を支軸３２から取り外すことにより、鍔部材４２を支軸３２から取り外すことができ、筒部材４１を支軸３２から上方に抜き外すことができる。本実施形態では、筒部材４１として円筒部材が採用されているが、これに限らない。例えば六角形や四角形など、非円形の筒部材の採用が可能である。また、本実施形態では、鍔部材４２として、円板部材が採用されているが、これに限らない。たとえば、六角形、四角形、三角形など、非円形の部材の採用が可能である。また、板状部材の他、ブロック状の部材の採用が可能である。 The tubular member 41 is configured to have a portion projecting to the outer peripheral side with respect to the outer diameter of the hole 33a of the connecting member 33. Specifically, the cylindrical member 41 is configured by a cylindrical member having an outer diameter larger than the outer diameter of the hole 33a. The tubular member 41 is externally fitted to a portion of the support shaft 32 that protrudes from the hole 33 a in the insertion direction of the connecting member 33. The collar member 42 is configured to have a portion that projects outward from the outer diameter of the hole 33 a of the connecting member 33. Specifically, the collar member 42 is formed of a disc member having an outer diameter larger than the outer diameter of the hole 33a. The collar member 42 is attached to a tip portion of the support shaft 32 that protrudes from the tubular member 41 in the insertion direction of the connecting member 33. The bolt 43 is configured to be fastened to the spindle 32 along the direction in which the spindle 32 is inserted into the hole 33a, and by being fastened to the spindle 32, the head of the bolt 43 causes the collar 43 to engage. The member 42 is pressed from above so that the flange member 42 is attached to the support shaft 32, and the tubular member 41 is abutted against the outer peripheral portion of the hole 33a in the connecting member 33. By removing the bolt 43 from the support shaft 32, the collar member 42 can be removed from the support shaft 32, and the tubular member 41 can be pulled out upward from the support shaft 32. In this embodiment, a cylindrical member is used as the cylindrical member 41, but the present invention is not limited to this. For example, it is possible to employ a non-circular tubular member such as a hexagon or a quadrangle. Further, in the present embodiment, a disc member is adopted as the collar member 42, but the present invention is not limited to this. For example, a non-circular member such as a hexagon, a quadrangle, or a triangle can be adopted. In addition to the plate-shaped member, a block-shaped member can be adopted.

抜止め機構４０においては、筒部材４１、鍔部材４２及びボルト４３が装着されることにより、細断装置１１が支持部１６から外れることを阻止するように作用状態になる。
すなわち、筒部材４１、鍔部材４２及びボルト４３が装着されると、鍔部材４２がボルト４３の締め付け力によって筒部材４１に押し付けられ、筒部材４１が連結部材３３に当て付けられ、支軸３２が穴部３３ａから抜け出そうとしても、すなわち、連結部材３３が支軸３２から抜け出そうとしても、鍔部材４２がストッパーになり、支軸３２が穴部３３ａから抜け出して（連結部材３３が支軸３２から抜け出して）細断装置１１が支持部１６から上方に離間することが阻止される。 In the retaining mechanism 40, the tubular member 41, the flange member 42, and the bolt 43 are mounted so that the shredder 11 is prevented from coming off the support portion 16.
That is, when the tubular member 41, the collar member 42 and the bolt 43 are mounted, the collar member 42 is pressed against the tubular member 41 by the tightening force of the bolt 43, the tubular member 41 is abutted against the connecting member 33, and the support shaft 32 is attached. Even if the connecting member 33 tries to come out of the hole 33a, that is, if the connecting member 33 comes out of the support shaft 32, the collar member 42 serves as a stopper, and the supporting shaft 32 comes out of the hole 33a (the connecting member 33 becomes a supporting shaft). The shredding device 11 (out of 32) is prevented from separating from the support 16 upwards.

抜止め機構４０においては、鍔部材４２及びボルト４３が取り外されることにより、細断装置１１が支持部１６から外れることを許容するように作用解除状態になる。
すなわち、鍔部材４２及びボルト４３が取り外されると、支軸３２が穴部３３ａから抜け出すことに対するストッパーが無くなり、筒部材４１の支軸３２からの抜け出しが可能になり、支軸３２が穴部３３ａから抜け出して細断装置１１が支持部１６から上方に離間することを許容される。 In the retaining mechanism 40, the collar member 42 and the bolt 43 are removed, so that the shredder 11 is released from the supporting portion 16 so that the shredder 11 is released from the action.
That is, when the collar member 42 and the bolt 43 are removed, there is no stopper for the support shaft 32 coming out of the hole 33a, and the tubular member 41 can be taken out of the support shaft 32. It is allowed that the shredder 11 is pulled out of the support and separated upward from the support portion 16.

細断装置１１を取付ける場合、上側ヒンジ機構３０Ｕ及び下側ヒンジ機構３０Ｄの連結部材３３を支軸３２に上方から外嵌させる。上側ヒンジ機構３０Ｕにおいて、連結部材３３と上の軸支持部材３１ａとが接触して連結部材３３が軸支持部材３１ａによって下方から受け止め支持される状態になると、下側ヒンジ機構３０Ｄにおいて、連結部材３３と上の軸支持部材３１ａとが接触しないで離間しているが、上側ヒンジ機構３０Ｕの連結部材３３が軸支持部材３１ａによって下方から受け止め支持されることにより、細断装置１１が支持部１６によって下方から支持されると共に軸芯Ｐ回りに揺動開閉可能に支持される状態になり、細断装置１１の取付ができる。 When the shredder 11 is attached, the connecting members 33 of the upper hinge mechanism 30U and the lower hinge mechanism 30D are fitted onto the support shaft 32 from above. In the upper hinge mechanism 30U, when the connecting member 33 comes into contact with the upper shaft supporting member 31a and the connecting member 33 is received and supported from below by the shaft supporting member 31a, the lower hinge mechanism 30D connects the connecting member 33. And the upper shaft support member 31a are separated from each other, but the connecting member 33 of the upper hinge mechanism 30U is received and supported from below by the shaft support member 31a, so that the shredding device 11 is supported by the support portion 16. The shredder 11 is supported from below and can be swingably opened/closed around the axis P so that the shredder 11 can be attached.

細断装置１１の取付けを行う場合、上側ヒンジ機構３０Ｕ及び下側ヒンジ機構３０Ｄの製作精度に起因して上側ヒンジ機構３０Ｕ及び下側ヒンジ機構３０Ｄの組付け誤差が発生しても、下側ヒンジ機構３０Ｄの連結部材３３と軸支持部材３１ａとの間の隙間Ｓによって組付け誤差が吸収され、細断装置１１を組付け不良が無い状態で支持部１６に支持される。 When the shredding device 11 is attached, even if an assembly error occurs in the upper hinge mechanism 30U and the lower hinge mechanism 30D due to the manufacturing accuracy of the upper hinge mechanism 30U and the lower hinge mechanism 30D, the lower hinge. The gap S between the connecting member 33 of the mechanism 30D and the shaft support member 31a absorbs an assembly error, and the shredder 11 is supported by the support portion 16 without any assembly failure.

細断装置１１を取付けた場合、筒部材４１、鍔部材４２及びボルト４３を取り付けて抜止め機構４０を作用状態に切り換える。すると、上側ヒンジ機構３０Ｕにおける連結部材３３の支軸３２からの抜け出しが抜止め機構４０によって阻止され、上側ヒンジ機構３０Ｕにおける連結部材３３の支軸３２からの抜け出しが阻止されることにより、下側ヒンジ機構３０Ｄにおける連結部材３３の支軸３２からの抜け出しも阻止され、走行機体を後進させて細断装置１１の下部が畦に当ったときなど、細断装置１１を上昇させる操作力が発生しても、細断装置１１が支持部１６から外れることを回避できる。また、上側ヒンジ機構３０Ｕにおいて、連結部材３３を支軸３２に外嵌させるために連結部材３３に備えるボス部の機能を筒部材４１が備え、連結部材３３と支軸３２との間のガタ付きや傾動が発生し難くなる。 When the shredding device 11 is attached, the tubular member 41, the collar member 42 and the bolt 43 are attached to switch the retaining mechanism 40 to the operating state. Then, the retaining mechanism 40 prevents the connecting member 33 of the upper hinge mechanism 30U from coming off the support shaft 32, and prevents the connecting member 33 of the upper hinge mechanism 30U from coming off the support shaft 32. The hinge mechanism 30D is also prevented from coming out of the support shaft 32 of the connecting member 33, and when the traveling machine body is moved backward and the lower part of the shredder 11 hits a ridge, an operating force for raising the shredder 11 is generated. However, it is possible to prevent the shredding device 11 from coming off the support portion 16. In addition, in the upper hinge mechanism 30U, the tubular member 41 has a function of a boss portion included in the connecting member 33 for externally fitting the connecting member 33 to the supporting shaft 32, and there is play between the connecting member 33 and the supporting shaft 32. And tilting is less likely to occur.

細断装置１１を取り外すのには、鍔部材４２及びボルト４３が取り外して抜止め機構４０を作用解除状態に切り換える。抜止め機構４０が作用解除状態になると、細断装置１１を上昇操作することにより、上側ヒンジ機構３０Ｕの連結部材３３が支軸３２から上方に抜け外れて、かつ、下側ヒンジ機構３０Ｄの連結部材３３が支軸３２から上方に抜け外れて細断装置１１が支持部１６から上方に離間し、細断装置１１を取り外すことができる。 In order to remove the shredding device 11, the collar member 42 and the bolt 43 are removed and the retaining mechanism 40 is switched to the operation release state. When the retaining mechanism 40 is in the released state, the connecting device 33 of the upper hinge mechanism 30U is pulled out upward from the support shaft 32 and the lower hinge mechanism 30D is connected by raising the shredding device 11. The member 33 is pulled out upward from the support shaft 32, and the shredding device 11 is separated from the support portion 16 upward, so that the shredding device 11 can be removed.

〔別実施形態〕
（１）図６は、別の実施形態を備える細断装置１１の支持構造を示す側面図である。別の実施形態を備える支持構造では、上側ヒンジ機構３０Ｕ及び下側ヒンジ機構３０Ｄのうちの下側ヒンジ機構３０Ｄに、抜止め機構４０が備えられている。この抜止め機構４０では、筒部材４１が連結部材３３に固定されている。本実施形態では、筒部材４１の連結部材３３に対する固定は、溶接によって行われている。これに限らず、筒部材４１フランジ部を備え、フランジ部と、フランジ部を連結部材３３に連結する連結ボルトとによって筒部材４１を連結部材３３に固定する固定手段の採用が可能である。上側ヒンジ機構３０Ｕ及び下側ヒンジ機構３０Ｄのそれぞれにおいて、軸支持部材３１ａと連結部材３３とが接触して連結部材３３が軸支持部材３１ａによって下方から支持されることにより、細断装置１１が支持部１６によって下方から支持されている。 [Another embodiment]
(1) FIG. 6 is a side view showing a support structure of the shredder 11 including another embodiment. In the support structure including another embodiment, the lower hinge mechanism 30D of the upper hinge mechanism 30U and the lower hinge mechanism 30D is provided with the retaining mechanism 40. In the retaining mechanism 40, the tubular member 41 is fixed to the connecting member 33. In the present embodiment, the tubular member 41 is fixed to the connecting member 33 by welding. The present invention is not limited to this, and it is possible to employ a fixing unit that includes the flange portion of the tubular member 41 and that secures the tubular member 41 to the connecting member 33 with the flange portion and the connecting bolt that connects the flange portion to the connecting member 33. In each of the upper hinge mechanism 30U and the lower hinge mechanism 30D, the shaft supporting member 31a and the connecting member 33 contact each other and the connecting member 33 is supported from below by the shaft supporting member 31a, so that the shredding device 11 is supported. It is supported from below by the portion 16.

（２）上記した実施形態では、支軸３２が支持部１６に設けられ、連結部材３３が細断装置１１に設けられ、連結部材３３が支軸３２に対して上方に抜け出ることによって細断装置１１が支持部１６から外れる構成を示したが、これに限らない。すなわち、支軸が細断装置１１に設けられ、連結部材３３が支持部１６に設けられ、支軸３２が連結部材３３から上方に抜け出ることによって細断装置１１が支持部１６から外れる構成を採用してもよい。要するに、支軸が連結部材の穴部に挿入されて細断装置１１が支持部１６に支持され、支軸が連結部材の穴部から抜け出て細断装置１１が支持部１６に対して上方に離間するものであればよい。 (2) In the above-described embodiment, the support shaft 32 is provided in the support portion 16, the connecting member 33 is provided in the shredding device 11, and the connecting member 33 is pulled out upward with respect to the support shaft 32 so that the shredding device is provided. Although the configuration in which 11 is detached from the support portion 16 is shown, the configuration is not limited to this. That is, the support shaft is provided in the shredding device 11, the connecting member 33 is provided in the supporting portion 16, and the supporting shaft 32 is pulled out upward from the connecting member 33 so that the shredding device 11 is disengaged from the supporting portion 16. You may. In short, the support shaft is inserted into the hole of the connecting member so that the shredder 11 is supported by the support portion 16, the support shaft is pulled out of the hole of the connecting member, and the shredder 11 is moved upward with respect to the support portion 16. It may be separated.

（３）上記した実施形態では、上側ヒンジ機構３０Ｕにおいて、軸支持部材３１ａと連結部材３３とが接触し、下側ヒンジ機構３０Ｄにおいて、軸支持部材３１ａと連結部材３３とが離間している構成を採用された例を示したが、上側ヒンジ機構３０Ｕにおいて、軸支持部材３１ａと連結部材３３とが離間し、下側ヒンジ機構３０Ｄにおいて、軸支持部材３１ａと連結部材３３とが接触する構成を採用してもよい。 (3) In the above-described embodiment, in the upper hinge mechanism 30U, the shaft support member 31a and the connecting member 33 are in contact with each other, and in the lower hinge mechanism 30D, the shaft support member 31a and the connecting member 33 are separated from each other. In the upper hinge mechanism 30U, the shaft support member 31a and the coupling member 33 are separated from each other, and in the lower hinge mechanism 30D, the shaft support member 31a and the coupling member 33 are in contact with each other. May be adopted.

（４）上記した実施形態では、支持部１６が支柱によって構成された例を示したが、これに限らず、支持部１６として脱穀装置８を採用したものでもよい。 (4) In the above-described embodiment, the example in which the support portion 16 is configured by the support column has been shown, but the present invention is not limited to this, and the threshing device 8 may be adopted as the support portion 16.

（５）上記した実施形態では、細断装置１１が機体の右横側に開かれる構成を採用した例を示したが、機体の左横側に開かれるものでもよい。 (5) In the above-described embodiment, an example in which the shredding device 11 is opened to the right lateral side of the machine body is shown, but it may be opened to the left lateral side of the machine body.

（６）上記した実施形態では、筒部材４１を設けた例を示したが、これに限らず、筒部材４１を設けず、鍔部材４２が連結部材３３に直接に当る構成を採用してもよい。 (6) In the above-described embodiment, the example in which the tubular member 41 is provided is shown, but the present invention is not limited to this, and a configuration in which the tubular member 41 is not provided and the collar member 42 directly contacts the connecting member 33 is adopted. Good.

（７）上記した実施形態では、脱穀装置８が自脱型に構成された例を示したが、刈取作物の株元から穂先までの全体が扱室に供給される脱穀装置が採用されたものでもよい。 (7) In the above-described embodiment, an example in which the threshing device 8 is configured to be self-removing is shown, but a threshing device in which the whole of the harvested crop from the root to the tip is supplied to the handling room is adopted. But it's okay.

本発明は、自脱型のコンバインに限らず、普通型のコンバインに適用できる。 INDUSTRIAL APPLICABILITY The present invention can be applied not only to the self-removing combine, but also to a normal combine.

５Ａ収穫部
８脱穀装置
１１細断装置
１６支持部
３０ヒンジ機構
３０Ｕ上のヒンジ機構
３０Ｄ下のヒンジ機構
３１ａ軸支持部材
３２支軸
３３連結部材
３３ａ穴部
４０抜止め機構
４１筒部材
４２鍔部材
４３ボルト
5A Harvesting unit 8 Threshing device 11 Shredding device 16 Supporting unit 30 Hinge mechanism 30U Upper hinge mechanism 30D Lower hinge mechanism 31a Shaft supporting member 32 Spindle 33 Connecting member 33a Hole portion 40 Stopping mechanism 41 Cylindrical member 42 Collar member 43 bolt

Claims

圃場の作物を収穫する収穫部と、
機体に支持されるとともに、前記収穫部によって収穫された作物を脱穀処理する脱穀装置と、
前記脱穀装置の後部に接続され、かつ、前記脱穀装置が排出した脱穀排ワラを受け入れて細断処理する細断装置と、
前記機体側に設けられ、前記細断装置が上下向きの揺動軸芯回りに揺動可能なように、前記細断装置を下方から支持する支持部と、
前記支持部及び前記細断装置の一方に前記揺動軸芯を軸芯とする状態で設けられた機体上下向きの支軸と、前記支持部及び前記細断装置の他方に設けられるとともに、前記支軸が挿入される穴部が形成された連結部材と、を有し、かつ、前記細断装置が前記揺動軸芯回りに揺動するのを可能にするヒンジ機構と、が備えられ、
前記ヒンジ機構に、前記支軸が前記穴部から抜け出して前記細断装置が前記支持部から上方に離間するのを阻止する作用状態と、前記支軸が前記穴部から抜け出すのを許容する作用解除状態と、に切り換え可能な抜止め機構が備えられ、
前記抜止め機構に、前記支軸のうち、前記支軸を前記連結部材に挿入する挿入方向における先端部に取付けられ、前記穴部の外径よりも外周側に突出する部分を有する鍔部材と、前記挿入方向に沿って前記先端部に締結されることで前記鍔部材を前記先端部に着脱可能に固定するボルトと、が備えられているコンバイン。 A harvesting unit that harvests crops in the field
A threshing device that is supported by an airframe and that threshes the crops harvested by the harvesting unit,
A shredding device that is connected to the rear part of the threshing device, and that receives the threshing discharge straw discharged by the threshing device and shreds.
A support portion that is provided on the machine body side and that supports the shredder from below so that the shredder can swing around a vertically-oriented swing axis.
A vertical support shaft provided in one of the support portion and the shredding device with the swing axis as an axis, and the other of the support portion and the shredder, and A connecting member in which a hole into which the support shaft is inserted is formed, and a hinge mechanism that enables the shredding device to swing around the swing shaft core,
A state in which the hinge mechanism acts on the hinge mechanism to prevent the spindle from slipping out of the hole and the shredding device from separating upward from the support portion; and an action that allows the spindle to slip out of the hole. With a retaining mechanism that can be switched to the released state,
A collar member that is attached to the tip of the support shaft in the insertion direction of the support shaft into the connecting member, and that has a portion that protrudes outward from the outer diameter of the hole. A bolt that is detachably fixed to the tip portion by being fastened to the tip portion along the insertion direction.

前記抜止め機構に、前記支軸における前記穴部から前記挿入方向に向けて突出する部分に外嵌するとともに前記鍔部材と前記連結部材とに亘るように前記挿入方向に沿って延び、前記ボルトを締め付けることで前記鍔部材によって前記連結部材における前記穴部の外周部に当て付けられる筒部材を備えられている請求項１に記載のコンバイン。 The retaining mechanism is fitted onto a portion of the support shaft projecting from the hole toward the inserting direction, and extends along the inserting direction so as to extend over the collar member and the connecting member, and the bolt. The combine member according to claim 1, further comprising: a tubular member that is pressed against the outer peripheral portion of the hole in the connecting member by tightening the flange member.

前記筒部材は、前記外周部に固定されている請求項２に記載のコンバイン。 The combine according to claim 2, wherein the tubular member is fixed to the outer peripheral portion.

前記ヒンジ機構として、上側の上側ヒンジ機構と、下側の下側ヒンジ機構と、が備えられ、
前記下側ヒンジ機構における前記抜止め機構にのみ、前記筒部材が備えられている請求項２または３に記載のコンバイン。 An upper side upper hinge mechanism and a lower side lower hinge mechanism are provided as the hinge mechanism,
The combine according to claim 2 or 3, wherein the tubular member is provided only in the retaining mechanism of the lower hinge mechanism.

前記支持部及び前記細断装置の一方に、前記支軸を支持する軸支持部材が備えられ、
前記ヒンジ機構として、上側の上側ヒンジ機構と、下側の下側ヒンジ機構と、が備えられ、
前記上側ヒンジ機構及び前記下側ヒンジ機構の一方において、前記軸支持部材と前記連結部材とが上下方向に接触し、かつ、前記上側ヒンジ機構及び前記下側ヒンジ機構の他方において、前記軸支持部材と前記連結部材とが上下方向に離間している請求項２から４の何れか一項に記載のコンバイン。 One of the support portion and the shredding device is provided with a shaft support member that supports the support shaft,
An upper side upper hinge mechanism and a lower side lower hinge mechanism are provided as the hinge mechanism,
In one of the upper hinge mechanism and the lower hinge mechanism, the shaft support member and the connecting member contact in the vertical direction, and in the other of the upper hinge mechanism and the lower hinge mechanism, the shaft support member. The combine according to claim 2, wherein the connecting member and the connecting member are vertically separated from each other.

前記連結部材は、板状部材である請求項１から５の何れか一項に記載のコンバイン。 The combine according to any one of claims 1 to 5, wherein the connecting member is a plate-shaped member.