JP2020000052A - Combine - Google Patents

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JP2020000052A
JP2020000052A JP2018121157A JP2018121157A JP2020000052A JP 2020000052 A JP2020000052 A JP 2020000052A JP 2018121157 A JP2018121157 A JP 2018121157A JP 2018121157 A JP2018121157 A JP 2018121157A JP 2020000052 A JP2020000052 A JP 2020000052A
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lid member
rear cover
cutting
opening
case
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JP7018837B2 (en
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学 高比良
Manabu Takahira
学 高比良
哲治 永田
Tetsuji Nagata
永田　　哲治
誠一郎 加戸
Seiichiro Kato
誠一郎 加戸
拓也 石塚
Takuya Ishizuka
拓也 石塚
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Kubota Corp
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Kubota Corp
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Abstract

To enable quick cleaning of the inside of a rear cover of a case of a combine with little manpower in the combine which has a waste straw shredding machine for performing shredding processing on threshed waste straws that includes a driving blade body that has a plurality of cutting blades, a receiving blade body that has a plurality of receiving blades supported by a cutting axis, and the case for storing the driving blade body and the receiving blade body.SOLUTION: Removal mechanism 20 capable of removing dust that is attached to the inner surface part of a rear cover 15B is provided within a case 15.SELECTED DRAWING: Figure 2

Description

本発明は、刈取穀稈を脱穀処理する脱穀装置と、前記脱穀装置の後部に連結され、脱穀処理後の排ワラを切断処理する排ワラ切断装置と、が備えられたコンバインに関する。   The present invention relates to a combine provided with a threshing device for threshing a harvested grain culm, and a waste straw cutting device connected to a rear portion of the threshing device for cutting a waste straw after threshing.

上記したコンバインにおける排ワラ切断装置として、例えば特許文献１に示されるように、駆動軸(文献１の切断軸)、及び、駆動軸に支持された複数の切断刃を有する駆動刃体（文献１の回転カッター）と、駆動軸と平行な切断軸（文献１の供給軸）、及び、切断軸に支持されるとともに切断刃に対応する複数の受刃（文献１の供給刃）を有する受刃体（文献１の回転供給体）と、駆動刃体及び受刃体を収容するケース（文献１のカッターケース）と、が備えられたものがある。   For example, as disclosed in Patent Document 1, a drive blade body having a drive shaft (cutting shaft of Document 1) and a plurality of cutting blades supported by the drive shaft (Patent Document 1). Rotary cutter), a cutting shaft parallel to the drive shaft (supply shaft in Document 1), and a receiving blade supported by the cutting shaft and having a plurality of receiving blades (supply blades in Document 1) corresponding to the cutting blade. There is a type provided with a body (rotary supply body in Document 1) and a case (cutter case in Document 1) for accommodating a driving blade body and a receiving blade body.

特開２０１０−９９０２７号公報JP 2010-99027 A

上記した排ワラ切断装置においては、排ワラの切断処理に伴い、排ワラに付着していた泥や、切れワラなどの塵埃がケースのうち、ケースの後部を構成する後部カバーの内面部に付着し、付着した塵埃を取り除く清掃を行わねばならないことがある。従来、このようの場合、後部カバーを外したり、また、別途のスクレーパなどを準備したりして清掃作業をしなければならず、手間が掛かった。また、多くの時間が掛かる。   In the above-described waste stirrer cutting device, dust such as mud and broken stirrer adhered to the waste stirrer adheres to the inner surface of the rear cover constituting the rear part of the case in the case of cutting the stirrer. In some cases, cleaning must be performed to remove attached dust. Conventionally, in such a case, the rear cover has to be removed, or a separate scraper or the like has to be prepared to perform a cleaning operation, which is troublesome. It also takes a lot of time.

本発明は、後部カバーを手間を掛けずに清掃できるコンバインを提供する。   The present invention provides a combine which can clean the rear cover without hassle.

本発明によるコンバインは、
刈取穀稈を脱穀処理する脱穀装置と、前記脱穀装置の後部に連結され、脱穀処理後の排ワラを切断処理する排ワラ切断装置と、が備えられ、前記排ワラ切断装置に、駆動軸、及び、前記駆動軸に支持された複数の切断刃を有する駆動刃体と、前記駆動軸と平行な切断軸、及び、前記切断軸に支持されるとともに前記切断刃に対応する複数の受刃を有する受刃体と、前記駆動刃体及び前記受刃体を収容するケースと、が備えられ、前記ケースに、ケース本体と、前記ケース本体の後部を構成する後部カバーと、が備えられ、前記ケースの内部に、前記後部カバーの内面部に付着した塵埃を除去可能な除去機構が備えられている。 The combine according to the invention is
A threshing device for threshing the harvested grain culm, and a waste straw cutting device connected to a rear portion of the threshing device for cutting the waste straw after the threshing process, and a drive shaft, And a drive blade body having a plurality of cutting blades supported by the drive shaft, a cutting shaft parallel to the drive shaft, and a plurality of receiving blades supported by the cutting shaft and corresponding to the cutting blade. A receiving blade body, and a case accommodating the driving blade body and the receiving blade body, wherein the case includes a case body, and a rear cover constituting a rear portion of the case body, A removal mechanism is provided inside the case to remove dust attached to the inner surface of the rear cover.

本構成によると、後部カバーの内面部に付着した塵埃をケースの内部に位置する除去機構によって除去できるので、後部カバーを外したり、別途のスクレーパなどを準備する必要がなかったりして、手間を掛けずに清掃できる。   According to this configuration, dust adhered to the inner surface of the rear cover can be removed by the removal mechanism located inside the case.Therefore, there is no need to remove the rear cover or prepare a separate scraper or the like. Can be cleaned without hanging.

本発明においては、前記除去機構は、前記内面部のうちの機体横外側部分を除去対象面としていると好適である。   In the present invention, it is preferable that the removal mechanism uses a laterally outer portion of the inner surface of the body as a removal target surface.

泥は、排ワラの株元側から飛散する。また、脱穀装置から排出される選別風が排ワラ切断装置のケース内に入り込んで流れるなどにより、後部カバーの内面部のうち、機体横外側部分に塵埃が付着し易い。本構成によると、後部カバーの内面部のうちの機体横外側部分が除去機構の除去対象面になっているので、付着した塵埃を的確に除去できる。   Mud scatters from the base of the straw. In addition, due to the sorting wind discharged from the threshing device entering into the case of the waste straw cutting device and flowing, dust easily adheres to a laterally outer portion of the body of the rear cover. According to this configuration, since the laterally outer portion of the body of the inner surface of the rear cover is the surface to be removed by the removing mechanism, the attached dust can be accurately removed.

本発明においては、前記除去機構は、前記後部カバーに支持され、除去対象面に対して相対移動操作可能な部材であると好適である。   In the present invention, it is preferable that the removing mechanism is a member that is supported by the rear cover and that can be moved relative to the surface to be removed.

本構成によると、除去機構が除去対象面に沿って移動して塵埃を削り取ることができるので、塵埃を除去し易い。   According to this configuration, the removing mechanism can move along the surface to be removed to scrape the dust, so that the dust is easily removed.

本発明においては、前記除去機構は、除去対象面に対して立ち上がる折曲げ端部を有する板部材であり、前記板部材は、前記折曲げ端部によって塵埃を削り取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 removing mechanism is a plate member having a bent end that rises with respect to a surface to be removed, and the plate member is configured to scrape dust by the bent end. It is.

本構成によると、除去機構が板部材でなる簡素な構造のものでありながら、折曲げ端部によって強い除去反力に対抗しつつ塵埃を削り取ることができるので塵埃を的確に除去できる。   According to this configuration, although the removing mechanism has a simple structure made of a plate member, dust can be scraped off against the strong removing reaction force by the bent end portion, so that the dust can be removed accurately.

本発明においては、前記後部カバーのうちの塵埃除去の対象面を有する箇所に形成された開口と、前記開口を塞ぐ蓋部材と、が備えられ、前記蓋部材は、前記後部カバーに対して摺接して前記開口を塞ぐ閉状態と、前記開口を開ける開状態と、に状態切り換え可能に構成され、前記除去機構に、前記開口の縁部と、前記蓋部材を前記閉状態と前記開状態とに状態切り換えする切替機構と、が備えられ、前記蓋部材の内面に付着した塵埃が前記蓋部材の前記後部カバーに対する摺動によって削り取られると好適である。   In the present invention, an opening formed at a portion of the rear cover having a target surface for dust removal, and a lid member for closing the opening are provided, and the lid member slides on the rear cover. It is configured to be able to switch between a closed state in which the opening is in contact with and an open state in which the opening is opened, and the removing mechanism includes an edge of the opening, the lid member in the closed state and the open state. And a switching mechanism for switching the state of the lid member. The dust attached to the inner surface of the lid member is preferably removed by sliding the lid member against the rear cover.

本構成によると、開口の縁部を削り取りエッジに活用した簡素な構造の除去機構によって後部カバーの塵埃を除去できる。   According to this configuration, the dust on the rear cover can be removed by the removal mechanism having a simple structure in which the edge of the opening is scraped and used as the edge.

本発明において、前記蓋部材を前記閉状態に保持するロック機構が備えられていると好適である。   In the present invention, it is preferable that a lock mechanism for holding the lid member in the closed state is provided.

本構成によると、開口の縁部を削り取りエッジに活用するものでありながら、蓋部材をロック機構によって閉状態に保持できるので、細断ワラなどが開口から漏れ出ないように開口をしっかり閉じつつ排ワラ細断をできる。   According to this configuration, while the edge of the opening is scraped and used as an edge, the lid member can be kept closed by the lock mechanism, so that the opening is firmly closed so that shredded straws etc. do not leak out of the opening. It can shred waste straw.

コンバインの全体を示す左側面図である。It is a left view which shows the whole combine. 排ワラ切断装置を示す縦断側面図である。It is a vertical side view which shows a waste straw cutting apparatus. 排ワラ切断装置を示す後面図である。It is a rear view which shows a waste straw cutting apparatus. 除去機構を示す正面図である。It is a front view which shows a removal mechanism. 図４のＶ−Ｖ断面矢視図である。FIG. 5 is a sectional view taken along the line VV in FIG. 4. 第１別実施形態を備える排ワラ切断装置を示す後面図である。It is a rear view which shows the waste straw cutting apparatus provided with 1st another embodiment. 第１別実施形態を備える排ワラ切断装置を示す後面図である。It is a rear view which shows the waste straw cutting apparatus provided with 1st another embodiment. 第２別実施形態を備える排ワラ切断装置を示す後面図である。It is a rear view which shows the waste straw cutting apparatus provided with 2nd another embodiment. 第３別実施形態を備える排ワラ切断装置を示す後面図である。It is a rear view which shows the waste straw cutting apparatus provided with 3rd 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, an embodiment which is an example of the present invention will be described with reference to the drawings.
In the following description, the direction of the arrow F shown in FIG. 1 is “forward”, the direction of the arrow B is “rearward”, the direction of the arrow U is “upward”, and the direction of the arrow D is shown in FIG. The direction is referred to as “downside of the plane”, the direction on the front side of the page is “left side of the plane”, and the direction on the back side of the page is “rightward of the plane”.

〔コンバインの全体の構成について〕
図１に示されるように、コンバインは、機体フレーム１、機体フレーム１の下部に駆動可能に装備された左右一対のクローラ走行装置２を有する機体を備えている。機体の前部の右領域に運転部３が形成されている。運転部３には、搭乗空間を覆うキャビン４が備えられている。運転部３の下方に、エンジン５を有する原動部が形成されている。機体フレーム１の前部における左領域には、作業走行時に機体の前方に位置する水稲や麦などの穀稈を刈り取って搬送する刈取前処理部６が連結されている。刈取前処理部６は、機体左右向きの枢支軸芯Ｐ１を支点にした昇降揺動が可能な状態で連結されている。刈取前処理部６の昇降揺動は、機体フレーム１と前処理部フレーム７とにわたって架設された油圧式の昇降シリンダ８の伸縮作動で行われる。機体フレーム１のうち、刈取前処理部６の後側の部位に、刈取前処理部６が搬送する刈取穀稈を受け入れて脱穀処理し、脱穀処理後の処理物に選別処理を施す脱穀装置９が設けられている。脱穀装置９は、刈取前処理部６が供給する刈取穀稈の株元側を脱穀フィードチェーン(図示せず)によって後方に向け挟持搬送しつつ、刈取穀稈の穂先側を扱室（図示せず）に挿入して脱穀処理する。脱穀装置９の後部には、脱穀処理後の排ワラを切断処理する排ワラ切断装置１０が連結されている。排ワラ切断装置１０の下部に、排ワラ切断装置１０から排出される細断ワラを拡散オーガ１１ａによって機体横幅方向に拡散させて圃場に排出する細断ワラ排出装置１１が設けられている。機体フレーム１のうち、運転部３の後側の部位に、脱穀装置９から搬送された単粒化穀粒を回収して貯留する穀粒タンク１２が設けられている。脱穀装置９と穀粒タンク１２とは、機体横幅方向に並ぶ状態、いわゆる横並び状態で機体フレーム１に設けられている。穀粒タンク１２の後部には、貯留された穀粒を排出する穀粒排出装置１３が接続されている。 [Overall structure of combine]
As shown in FIG. 1, the combine includes an airframe having an airframe 1 and a pair of right and left crawler traveling devices 2 that are drivably mounted below the airframe 1. An operating section 3 is formed in a right area at the front of the fuselage. The driving section 3 is provided with a cabin 4 that covers the boarding space. A driving unit having the engine 5 is formed below the driving unit 3. A cutting pre-processing unit 6 that cuts and transports grain culms such as paddy rice and wheat located in front of the body during work traveling is connected to a left region in a front part of the body frame 1. The reaping pre-processing unit 6 is connected so as to be able to move up and down with the pivot axis P1 facing the machine body left and right as a fulcrum. The vertical movement of the mowing pre-processing unit 6 is performed by the expansion and contraction operation of a hydraulic lifting cylinder 8 installed between the machine body frame 1 and the pre-processing unit frame 7. A threshing device 9 that receives the harvested culm conveyed by the pre-cutting processing unit 6 and thresh-processes it in a portion on the rear side of the pre-cutting processing unit 6 in the machine body frame 1 and performs a sorting process on the processed product after the threshing process. Is provided. The threshing device 9 holds the stem side of the harvested culm supplied by the pre-cutting processing unit 6 backward by a threshing feed chain (not shown) and conveys the spike side of the harvested grain culm to a handling room (not shown). And threshing. The rear part of the threshing device 9 is connected with a waste straw cutting device 10 for cutting the waste straw after the threshing process. A chopping straw discharging device 11 is provided below the discharging straw cutting device 10 to spread the chopping straws discharged from the discharging straw cutting device 10 in the machine body width direction by the diffusion auger 11a and discharge it to the field. A grain tank 12 that collects and stores the single-grained grains transported from the threshing device 9 is provided in a portion of the body frame 1 behind the operation unit 3. The threshing device 9 and the grain tank 12 are provided on the body frame 1 in a state where they are arranged in the machine body width direction, that is, in a so-called side-by-side state. A grain discharging device 13 for discharging the stored grains is connected to the rear part of the grain tank 12.

〔刈取前処理部の構成について〕
刈取前処理部６においては、機体の走行に伴って、植立穀稈のうちの刈取対象の穀稈がデバイダ６ａによって引起装置６ｂに導入されて引き起こし処理され、引き起こし処理される植立穀稈の株元がバリカン型の刈取装置６ｃによって切断されて、収穫対象の穀稈が刈り取られる。刈取装置６ｃの後方に配備された搬送装置６ｄによって刈取穀稈が脱穀装置９の脱穀フィードチェーンの始端部に供給される。 [About the configuration of the pre-cutting unit]
In the pre-cutting processing unit 6, the culm to be harvested among the planted cereal culms is introduced into the raising device 6b by the divider 6a and caused and processed by the traveling of the machine, and the cultivated grain culm to be processed by the raising is processed. Is cut by the clipper-type cutting device 6c, and the culm to be harvested is cut. The harvested grain culm is supplied to the starting end of the threshing feed chain of the threshing device 9 by the transport device 6d arranged behind the harvesting device 6c.

〔排ワラ切断装置の構成について〕
排ワラ切断装置１０は、図２に示されるように、脱穀装置９の後部に設けられたケース１５を備えている。ケース１５は、脱穀装置９の排ワラ搬送装置９ａの搬送終端部の下方に位置する状態で設けられている。ケース１５の上部に、排ワラ投入口１６、及び、排ワラ搬送装置９ａから落下する排ワラを案内する案内部材１７が設けられている。ケース１５の内部に、駆動刃体１８及び受刃体１９が収容されている。 [About the structure of the waste straw cutting device]
As shown in FIG. 2, the waste straw cutting device 10 includes a case 15 provided at the rear of the threshing device 9. The case 15 is provided in a state where it is located below the transport terminal end of the waste straw transport device 9a of the threshing device 9. An upper portion of the case 15 is provided with a discharge straw input port 16 and a guide member 17 for guiding the discharge straw falling from the discharge straw transport device 9a. The drive blade 18 and the receiving blade 19 are housed inside the case 15.

案内部材１７は、図２に示されるように、排ワラ投入口１６の後側でケース１５に上下揺動可能に支持され、排ワラ投入口１６を開閉する蓋機能を備えている。案内部材１７は、ケース１５の上面部に対して立ち上がる姿勢に姿勢変更されると、排ワラ投入口１６を開く第１案内状態になり、排ワラ搬送装置９ａから落下する排ワラを案内部材１７の裏側面によって排ワラ投入口１６からケース１５の内部に流入するように案内する。案内部材１７は、ケース１５の上面部に沿う姿勢に姿勢変更されると、排ワラ投入口１６を閉じる第２案内状態になり、排ワラ搬送装置９ａから落下する排ワラを案内部材１７の表側面によってケース１５の後外側に長ワラ状態で流出するように案内する。   As shown in FIG. 2, the guide member 17 is vertically swingably supported by the case 15 behind the discharge straw inlet 16 and has a lid function for opening and closing the discharge straw inlet 16. When the guide member 17 is changed to a position in which the guide member 17 rises with respect to the upper surface of the case 15, the guide member 17 enters a first guide state in which the discharge straw inlet 16 is opened, and guides the discharge straw falling from the discharge straw transport device 9a to the guide member 17. Of the case 15 is guided by the back side surface of the case 15 into the case 15 from the discharge straw inlet 16. When the guide member 17 is changed to a position along the upper surface of the case 15, the guide member 17 enters a second guide state in which the discharge straw inlet 16 is closed, and the discharge straw falling from the discharge straw transport device 9 a is moved to the front of the guide member 17. The side guides the case 15 so as to flow out of the case 15 in a long straw state.

駆動刃体１８は、図２に示されるように、ケース１５の左右の側壁に回転可能に支持された駆動軸１８ａ、及び、駆動軸１８ａに相対回転不能に支持された複数の切断刃１８ｂを有している。複数の切断刃１８ｂは、駆動軸１８ａの軸芯方向に間隔を空けて並んでいる。駆動刃体１８は、脱穀装置９から伝達される動力によって矢印Ｘ(図２参照)で示される回転方向に回転駆動される。   As shown in FIG. 2, the drive blade body 18 includes a drive shaft 18a rotatably supported on left and right side walls of the case 15, and a plurality of cutting blades 18b supported on the drive shaft 18a so as to be relatively non-rotatable. Have. The plurality of cutting blades 18b are arranged at intervals in the axial direction of the drive shaft 18a. The driving blade body 18 is driven to rotate in a rotation direction indicated by an arrow X (see FIG. 2) by the power transmitted from the threshing device 9.

受刃体１９は、駆動軸１８ａよりも前側に駆動軸１８ａと平行に位置する状態でケース１５の左右の側壁に回転可能に支持された切断軸１９ａ、及び、切断軸１９ａに相対回転不能に支持されると共に切断刃１８ｂに対応する複数の受刃１９ｂを有している。受刃体１９は、脱穀装置９から伝達される動力によって矢印Ｙ（図２参照)で示される回転方向に回転駆動される。   The receiving blade body 19 is rotatably supported on the left and right side walls of the case 15 in a state positioned in front of the drive shaft 18a and in parallel with the drive shaft 18a, and the cutting shaft 19a is relatively non-rotatable. It has a plurality of receiving blades 19b supported and corresponding to the cutting blade 18b. The receiving blade body 19 is rotationally driven by a power transmitted from the threshing device 9 in a rotational direction indicated by an arrow Y (see FIG. 2).

排ワラ切断装置１０においては、案内部材１７が第１案内状態に切り換えられると、排ワラ搬送装置９ａから落下した排ワラが排ワラ投入口１６からケース１５の内部に流入する。流入した排ワラが駆動刃体１８及び受刃体１９の上に載り、切断刃１８ｂ及び受刃１９ｂによって駆動軸１８ａと切断軸１９ａとの間に掻き込まれつつ切断刃１８ｂ及び受刃１９ｂによって切断され、排ワラを稈身方向での複数箇所で切断する細断処理が行われる。細断ワラは、ケース１５の下部に繋がっている細断ワラ排出装置１１の拡散排出ケースの内部に落下する。   When the guide member 17 is switched to the first guide state in the waste straw cutting device 10, the waste straw that has fallen from the waste straw transport device 9 a flows into the case 15 from the waste straw inlet 16. The discharged waste straw is placed on the driving blade body 18 and the receiving blade body 19, and is scraped between the driving shaft 18a and the cutting shaft 19a by the cutting blade 18b and the receiving blade 19b. Cutting is performed, and shredding is performed to cut the waste straw at a plurality of locations in the direction of the culm. The shredder falls into the diffusion discharge case of the shredder discharging device 11 connected to the lower part of the case 15.

〔除去機構の構成について〕
ケース１５には、図２，３に示されるように、排ワラ投入口１６を有するケース本体１５Ａと、ケース本体１５Ａの後部を構成している後部カバー１５Ｂと、が備えられている。後部カバー１５Ｂは、駆動刃体１８を後方から塞ぐ状態で設けられている。排ワラに付着していた泥、脱穀処理及び排ワラ切断に伴って発生する切れワラなどの塵埃が後部カバー１５Ｂの内面部に付着する。ケース１５の内部に、後部カバー１５Ｂの内面部に付着した塵埃を除去可能な除去機構２０が設けられている。 [Removal mechanism configuration]
As shown in FIGS. 2 and 3, the case 15 includes a case body 15A having a discharge straw input port 16 and a rear cover 15B constituting a rear portion of the case body 15A. The rear cover 15B is provided so as to cover the drive blade 18 from behind. Dust such as mud that has adhered to the waste straw, cutting straw generated during threshing and cutting of the waste straw adheres to the inner surface of the rear cover 15B. Inside the case 15, a removing mechanism 20 capable of removing dust attached to the inner surface of the rear cover 15B is provided.

泥は、排ワラの株元側から飛散する。また、脱穀装置９の排塵ファン９ｂ(図２参照)から排出される選別風及び塵埃がケース１５の内部を通るなどにより、後部カバー１５Ｂの内面部１５Ｃのうちの機体横外側部分、すなわち、後部カバー１５Ｂの機体横幅方向での中心に対して脱穀フィードチェーンが位置する側に偏位した部分において、他の部分よりも塵埃が付着しやすい。除去機構２０は、図３に示されるように、後部カバー１５Ｂの内面部のうちの機体横外側部分を除去対象面とする状態で設けられている。   Mud scatters from the base of the straw. In addition, the sorting wind and dust discharged from the dust discharge fan 9b (see FIG. 2) of the threshing device 9 pass through the inside of the case 15, and the like, so that the outer side of the body of the inner surface portion 15C of the rear cover 15B, that is, Dust is more likely to adhere to the portion of the rear cover 15B that is deviated toward the side where the threshing feed chain is located with respect to the center in the lateral direction of the machine than the other portions. As shown in FIG. 3, the removal mechanism 20 is provided in a state in which a laterally outer portion of the body of the rear cover 15 </ b> B is to be removed.

具体的には、図４，５に示されるように、除去機構２０は、帯状の板部材によって構成されている。板部材の横幅方向での両端部に、除去対象面に対して立ち上がる折曲げ端部２１が設けられている。除去機構２０は、後部カバー１５Ｂのうち、除去対象面を有する部分に回転支軸２２を介して回転可能に支持されている。回転支軸２２のうち、後部カバー１５Ｂの外面側に突出している端部に操作ハンドル２３が相対回転不能に装着されている。   Specifically, as shown in FIGS. 4 and 5, the removing mechanism 20 is configured by a band-shaped plate member. At both ends in the width direction of the plate member, bent end portions 21 that stand up with respect to the surface to be removed are provided. The removal mechanism 20 is rotatably supported by a portion of the rear cover 15B having a surface to be removed via a rotation support shaft 22. An operation handle 23 is attached to an end of the rotation support shaft 22 protruding toward the outer surface of the rear cover 15B so as to be relatively non-rotatable.

除去機構２０は、操作ハンドル２３が回転支軸２２の軸芯Ｐ２を回転中心にして図３に矢印Ａで示される回転方向（時計回り方向）に回転操作されることにより、除去対象面に対して操作ハンドル２３の回転方向と同じ回転方向に相対移動する。除去機構２０は、矢印Ａで示される回転方向に回転されると、板部材の折曲げ端部２１のうちの図４に示される第１部分２１ａ及び第２部分２１ｂによって、除去対象面に付着している塵埃を削り取る。   The removal mechanism 20 rotates the operation handle 23 in the rotation direction (clockwise direction) indicated by the arrow A in FIG. 3 around the axis P2 of the rotation support shaft 22 as a rotation center. To move relatively in the same rotation direction as the rotation direction of the operation handle 23. When the removing mechanism 20 is rotated in the rotation direction indicated by the arrow A, the first end 21a and the second part 21b of the bent end portion 21 of the plate member shown in FIG. Scraping dust off.

除去機構２０は、操作ハンドル２３が回転支軸２２の軸芯Ｐ２を回転中心にして図３に矢印Ｂで示される回転方向(反時計回り方向)に回転操作されることにより、除去対象面に対して操作ハンドル２３の回転方向と同じ回転方向に相対移動する。除去機構２０は、矢印Ｂで示される回転方向に回転されると、板部材の折曲げ端部２１のうちの図４に示される第３部分２１ｃ及び第４部分２１ｄによって、除去対象面に付着している塵埃を削り取る。   The removal mechanism 20 is rotated by the operation handle 23 in the rotation direction (counterclockwise direction) indicated by the arrow B in FIG. 3 around the axis P2 of the rotation support shaft 22 as a rotation center. On the other hand, it relatively moves in the same rotation direction as the rotation direction of the operation handle 23. When the removing mechanism 20 is rotated in the rotation direction indicated by the arrow B, the removal mechanism 20 adheres to the surface to be removed by the third portion 21c and the fourth portion 21d of the bent end portion 21 of the plate member shown in FIG. Scraping dust off.

上記した実施形態では、除去機構２０が板部材によって構成された例を示したが、これに限らない。たとえば、横断面矩形の棒状部材、アングル部材、折曲げ端部を有しない平板部材などの採用が可能である。また、上記した実施形態では、板部材が回転支軸２２から反対方向の２方向に延びる構成を採用しているが、これに限らない。たとえば、板部材や棒状部材などが回転支軸２２から３方向や４方向などの複数方向に放射状に延びる構成を採用してもよい。また、板部材や棒状部材などが回転支軸２２から一方向だけに延びる構成を採用してもよい。また、上記した実施形態では、板部材の両横端部に折曲げ端部２１を設けた例を示しているが、板部材の片方の横端部だけに折曲げ端部を設けて実施してもよい。また、除去機構２０を後部カバー１５Ｂの横幅方向での複数箇所に設けて実施してもよい。また、板部材の横端部に、塵埃を削り取る板部材を塵埃に入り込みやすくする、ギザギザなどの凹凸や、突部を設けて実施してもよい。   In the above-described embodiment, the example in which the removing mechanism 20 is configured by the plate member has been described, but is not limited thereto. For example, a bar-shaped member having a rectangular cross section, an angle member, a flat plate member having no bent end, or the like can be used. Further, in the above-described embodiment, the configuration in which the plate member extends in two opposite directions from the rotation support shaft 22 is adopted, but the present invention is not limited to this. For example, a configuration in which a plate member, a rod-shaped member, or the like extends radially from the rotation support shaft 22 in a plurality of directions such as three directions or four directions may be employed. Further, a configuration in which a plate member, a bar-shaped member, or the like extends only in one direction from the rotation support shaft 22 may be employed. Further, in the above-described embodiment, an example is shown in which the bent end portions 21 are provided at both lateral end portions of the plate member, but the bent end portion is provided only at one lateral end portion of the plate member. You may. Further, the removal mechanism 20 may be provided at a plurality of locations in the lateral width direction of the rear cover 15B. Also, the plate member may be provided with unevenness or projections, such as jaggedness, at the lateral end of the plate member so that the plate member for removing dust easily enters the dust.

上記した実施形態では、ケース内に設けた除去機構２０が時計回り方向及び反時計回り方向の両方向に回転可能に構成された例を示したが、時計回り方向及び反時計回り方向のいずれか一方の回転方向にだけ回転可能な構成を採用してもよい。また、後部カバー１５Ｂに対して回転によって相対移動する構成に限らず、スライド移動によって相対移動する構成を採用してもよい。上記した実施形態では、除去機構２０が後部カバー１５Ｂの内面部のうちの機体横外側部分に設けられているが、これに限らない。たとえば、中央部分など、塵埃が付着し易い部分に設けるとよい。また、上記した実施形態では、除去機構２０が内面部の一箇所だけに設けられているが、排ワラ切断装置１０の横幅方向に並ぶ２箇所以上の複数箇所に設けて実施してもよい。   In the above-described embodiment, an example is described in which the removing mechanism 20 provided in the case is configured to be rotatable in both the clockwise direction and the counterclockwise direction, but any one of the clockwise direction and the counterclockwise direction is described. A configuration that is rotatable only in the rotation direction may be adopted. Further, the configuration is not limited to the configuration in which the rear cover 15B is relatively moved by rotation, and a configuration in which the slide cover is relatively moved may be adopted. In the above-described embodiment, the removing mechanism 20 is provided on the laterally outer portion of the body of the inner surface of the rear cover 15B, but is not limited thereto. For example, it may be provided in a portion where dust easily adheres, such as a central portion. In the above-described embodiment, the removing mechanism 20 is provided only at one location on the inner surface. However, the removing mechanism 20 may be provided at two or more locations arranged in the width direction of the waste straw cutting device 10.

〔別実施形態〕
（１）図６，７は、第１別実施形態を備える排ワラ切断装置１０を示す後面図である。図６，７に示されるように、第１別実施形態を備える排ワラ切断装置１０には、後部カバー１５Ｂのうちの除去対象面を有する箇所に形成された開口２４と、開口２４を塞ぐ蓋部材２５とが備えられている。 [Another embodiment]
(1) FIGS. 6 and 7 are rear views showing the waste straw cutting device 10 including the first alternative embodiment. As shown in FIGS. 6 and 7, the waste straw cutting apparatus 10 according to the first alternative embodiment includes an opening 24 formed in a portion of the rear cover 15 </ b> B having a surface to be removed, and a lid for closing the opening 24. A member 25 is provided.

蓋部材２５の角部が枢支軸２６を介して後部カバー１５Ｂに支持されている。後部カバー１５Ｂは、枢支軸２６を揺動支点にして揺動操作可能な状態で後部カバー１５Ｂに支持されている。蓋部材２５を揺動操作し、図６に示されるように、蓋部材２５が横倒れ姿勢になると、蓋部材２５は、開口２４を塞ぐ閉状態なる。蓋部材２５を揺動操作し、図７に示されるように、蓋部材２５が起立姿勢になると、蓋部材２５は、開口２４を開ける開状態なる。   A corner of the lid member 25 is supported by the rear cover 15B via the pivot 26. The rear cover 15B is supported by the rear cover 15B so as to be swingable with the pivot 26 as a swing fulcrum. As shown in FIG. 6, when the cover member 25 is swung and the cover member 25 is in a sideways posture, the cover member 25 is in a closed state that closes the opening 24. When the cover member 25 is swung and the cover member 25 is in the upright posture as shown in FIG. 7, the cover member 25 is in an open state in which the opening 24 is opened.

蓋部材２５が閉状態になった場合、図６に示されるように、開口２４の下側に設けられている位置決め部材２７によって蓋部材２５の一辺部が受け止め支持され、蓋部材２５は、位置決め部材２７によって閉状態に位置決めされる。蓋部材２５の遊端部に、蓋部材２５を開閉操作する開閉ハンドル２８が設けられている。開閉ハンドル２８は、蓋部材２５に対して起立した使用姿勢と、蓋部材２５に沿う状態に倒伏した格納姿勢とに姿勢変更可能な状態で蓋部材２５に支持されている。蓋部材２５に、蓋部材２５を閉状態に保持するロック機構２９が設けられている。ロック機構２９は、キャッチャーを利用して構成されている。ロック機構２９によって閉状態に保持された蓋部材２５によって開口２４をしっかり閉じて、細断ワラが開口２４から漏れ出ないようにできる。ロック機構２９は、蓋部材２５に揺動可能に連結された支持部材３０に支持されている。蓋部材２５を閉状態にした場合、支持部材３０を蓋部材２５側に揺動させてロック機構２９が蓋部材２５の貫通穴２５ａ（図７参照）を通って後部カバー１５Ｂの内側に入り込むようにすると、後部カバー１５Ｂに固定されているロック部材２９ａにロック機構２９が係止する。すると、ロック機構２９がロック状態になり、蓋部材２５がロック機構２９によって閉状態に保持される。   When the lid member 25 is in the closed state, one side of the lid member 25 is received and supported by a positioning member 27 provided below the opening 24, as shown in FIG. The member 27 is positioned in the closed state. An open / close handle 28 for opening and closing the lid member 25 is provided at the free end of the lid member 25. The opening / closing handle 28 is supported by the lid member 25 in a state in which the posture can be changed between a use posture standing upright with respect to the lid member 25 and a storage posture lying down along the lid member 25. The lid member 25 is provided with a lock mechanism 29 for holding the lid member 25 in a closed state. The lock mechanism 29 is configured using a catcher. The opening 24 can be firmly closed by the lid member 25 held in the closed state by the lock mechanism 29, so that the shredder can not leak from the opening 24. The lock mechanism 29 is supported by a support member 30 that is swingably connected to the lid member 25. When the cover member 25 is closed, the support member 30 is swung toward the cover member 25 so that the lock mechanism 29 enters the inside of the rear cover 15B through the through hole 25a (see FIG. 7) of the cover member 25. Then, the lock mechanism 29 is locked to the lock member 29a fixed to the rear cover 15B. Then, the lock mechanism 29 is locked, and the lid member 25 is held in the closed state by the lock mechanism 29.

枢支軸２６及び開閉ハンドル２８により、蓋部材２５を閉状態と開状態とに状態切り換えする切替機構３１が構成されている。   The pivoting shaft 26 and the opening / closing handle 28 constitute a switching mechanism 31 for switching the state of the lid member 25 between the closed state and the open state.

第１別実施形態を備える排ワラ切断装置１０では、除去機構２０に、開口２４における上側の縁部２４ａと、切替機構３１とが備えられている。除去機構２０においては、蓋部材２５が切替機構３１によって状態切り替えされることにより、縁部２４ａが除去対象面としての蓋部材２５の内面部に対して相対移動し、蓋部材２５の内面部に付着した塵埃が除去される。縁部２４ａには、図７に示されるように、縁部２４ａが塵埃を削り取るための縁部２４ａの塵埃への入り込みやすさを促進する突部２４ｃが設けられている。   In the waste straw cutting device 10 according to the first alternative embodiment, the removing mechanism 20 includes the upper edge 24 a of the opening 24 and the switching mechanism 31. In the removing mechanism 20, when the state of the lid member 25 is switched by the switching mechanism 31, the edge 24 a relatively moves with respect to the inner surface of the lid member 25 as a surface to be removed, and The attached dust is removed. As shown in FIG. 7, the edge 24a is provided with a protrusion 24c for facilitating entry of the edge 24a into dust for the edge 24a to remove dust.

すなわち、蓋部材２５が切替機構３１によって閉状態から上昇揺動されて開状態に切り換えられると、蓋部材２５の内面部が後部カバー１５Ｂに対して摺動し、この摺動によって蓋部材２５の内面部が縁部２４ａに対して移動し、蓋部材２５の内面部に付着している塵埃が縁部２４ａによって削り取られる。   That is, when the lid member 25 is swung upward from the closed state by the switching mechanism 31 and is switched to the open state, the inner surface portion of the lid member 25 slides with respect to the rear cover 15B. The inner surface moves relative to the edge 24a, and dust adhering to the inner surface of the lid member 25 is scraped off by the edge 24a.

第１別実施形態では、蓋部材２５が閉状態から上昇揺動することによって開状態に状態変更し、開口２４の上側の縁部２４ａによって塵埃の削り取りが行われる構成を採用しているが、蓋部材２５が閉状態から下降揺動することによって開状態に状態変更し、開口２４の下側の縁部によって塵埃の削り取りが行われる構成を採用してもよい。   In the first alternative embodiment, a configuration is adopted in which the lid member 25 is changed from the closed state to the open state by swinging upward, and dust is cut off by the upper edge 24a of the opening 24. A configuration may be adopted in which the state is changed to the open state by swinging the lid member 25 downward from the closed state, and dust is cut off by the lower edge of the opening 24.

（２）図８は、第２別実施形態を備える排ワラ切断装置１０を示す後面図である。図８に示されるように、第２別実施形態を備える排ワラ切断装置１０では、後部カバー１５Ｂのうち、開口２４の上下側の部分に、蓋部材２５を排ワラ切断装置１０の横幅方向にスライド開閉可能に支持する横向きのガイドレール３２が設けられている。蓋部材２５は、閉状態にされたとき、蓋部材２５の横端部が位置決め部材２７ａによって受け止められ、位置決め部材２７ａによって閉状態に位置決めされる。蓋部材２５を閉状態に保持するロック機構２９は、別の第１実施形態を備える排ワラ切断装置１０におけるロック機構２９の構成と同じ構成を備えている。   (2) FIG. 8 is a rear view showing the waste straw cutting apparatus 10 including the second alternative embodiment. As shown in FIG. 8, in the waste straw cutting apparatus 10 according to the second alternative embodiment, the lid member 25 is attached to the upper and lower portions of the opening 24 in the rear cover 15 </ b> B in the lateral width direction of the waste straw cutting apparatus 10. A lateral guide rail 32 that supports the slide opening and closing is provided. When the lid member 25 is closed, the lateral end of the lid member 25 is received by the positioning member 27a, and the lid member 25 is positioned in the closed state by the positioning member 27a. The lock mechanism 29 that holds the lid member 25 in the closed state has the same configuration as the configuration of the lock mechanism 29 in the discharged straw cutting device 10 according to another first embodiment.

第２別実施形態を備える排ワラ切断装置１０では、蓋部材２５を閉状態と開状態とに状態切り換えする切替機構３１に、横向きのガイドレール３２と、蓋部材２５に設けられた開閉ハンドル２８とが備えられ、除去機構２０に、開口２４における右横側の縁部２４ｂと、切替機構３１とが備えられている。   In the waste straw cutting apparatus 10 according to the second alternative embodiment, the switching mechanism 31 for switching the state of the lid member 25 between the closed state and the open state includes a lateral guide rail 32 and an opening / closing handle 28 provided on the lid member 25. The removal mechanism 20 includes a right side edge 24 b of the opening 24 and a switching mechanism 31.

除去機構２０においては、蓋部材２５が切替機構３１によって閉状態から右横側にスライド移動されて開状態に切り替えられると、縁部２４ｂが除去対象面としての蓋部材２５の内面部に対して相対移動し、蓋部材２５の内面部に付着している塵埃が除去される。すなわち、蓋部材２５の内面部が後部カバー１５Ｂに対して排ワラ切断装置１０の横幅方向に摺動し、この摺動によって蓋部材２５の内面部が縁部２４ｂに対して移動し、蓋部材２５の内面部に付着している塵埃が縁部２４ｂによって削り取られる。   In the removing mechanism 20, when the lid member 25 is slid to the right side from the closed state by the switching mechanism 31 and switched to the open state, the edge 24b is moved with respect to the inner surface of the lid member 25 as the surface to be removed. The dust is relatively moved and the dust adhered to the inner surface of the lid member 25 is removed. That is, the inner surface of the lid member 25 slides with respect to the rear cover 15B in the width direction of the waste straw cutting device 10, and the inner surface of the lid member 25 moves with respect to the edge 24b due to the sliding. Dust adhering to the inner surface of 25 is scraped off by the edge 24b.

第２別実施形態では、蓋部材２５が閉状態から右横側に移動することによって開状態に状態変更し、開口２４の右横側の縁部２４ｂよって塵埃の削り取りが行われる構成を採用しているが、蓋部材２５が閉状態から左横側に移動することによって開状態に状態変更し、開口２４の左横側の縁部によって塵埃の削り取りが行われる構成を採用してもよい。   In the second alternative embodiment, a configuration is adopted in which the lid member 25 changes from the closed state to the right side to the open state by moving to the right side, and dust is cut off by the right side edge 24b of the opening 24. However, a configuration may be adopted in which the state is changed to the open state by moving the lid member 25 from the closed state to the left side to the left side, and dust is cut off by the left side edge of the opening 24.

蓋部材２５を横スライドによって後部カバー１５Ｂに対して相対移動させる場合、開口２４の横幅を広くし、蓋部材２５を開口２４の左側部分と右側部分との２箇所に設けて実施してもよい。左側の蓋部材２５は、左側に移動して開口２４を開くときに内面部の塵埃が開口２４の左横側の縁部で削り取られ、右側の蓋部材２５は、右側に移動して開口２４を開くときに内面部の塵埃が開口２４の右横側の縁部で削り取られる。   When the lid member 25 is moved relative to the rear cover 15B by horizontal sliding, the lateral width of the opening 24 may be widened, and the lid member 25 may be provided at two places on the left side and the right side of the opening 24. . When the left lid member 25 moves to the left to open the opening 24, dust on the inner surface is scraped off at the left side edge of the opening 24, and the right lid member 25 moves to the right to open the opening 24. The dust on the inner surface is scraped off at the right side edge of the opening 24 when the opening is opened.

（３）図９は、第３別施形態を備える排ワラ切断装置１０を示す後面図である。図９に示されるように、別の第３実施形態を備える排ワラ切断装置１０では、後部カバー１５Ｂのうち、開口２４の両横側の部分に、蓋部材２５を排ワラ切断装置１０の上下方向にスライド開閉可能に支持する縦向きのガイドレール３３が設けられている。蓋部材２５は、閉状態にされたとき、蓋部材２５の下端部が位置決め部材２７ｂによって受け止められ、位置決め部材２７ｂによって閉状態に位置決めされる。蓋部材２５を閉状態に保持するロック機構２９は、別の第１実施形態を備える排ワラ切断装置１０におけるロック機構２９の構成と同じ構成を備えている。   (3) FIG. 9 is a rear view showing the waste straw cutting apparatus 10 having the third alternative embodiment. As shown in FIG. 9, in the waste straw cutting apparatus 10 according to another third embodiment, the lid member 25 is attached to the both sides of the opening 24 in the rear cover 15 </ b> B in the vertical direction of the waste straw cutting apparatus 10. A vertically-oriented guide rail 33 is provided to support the slide opening and closing in the direction. When the lid member 25 is closed, the lower end of the lid member 25 is received by the positioning member 27b, and is positioned in the closed state by the positioning member 27b. The lock mechanism 29 that holds the lid member 25 in the closed state has the same configuration as the configuration of the lock mechanism 29 in the discharged straw cutting device 10 according to another first embodiment.

第３別実施形態を備える排ワラ切断装置１０では、蓋部材２５を閉状態と開状態とに状態切り換えする切替機構３１に、縦向きのガイドレール３３と、蓋部材２５に設けられた開閉ハンドル２８とが備えられ、除去機構２０に、開口２４における上側の縁部２４ａと、切替機構３１とが備えられている。   In the waste straw cutting device 10 according to the third alternative embodiment, the switching mechanism 31 for switching the state of the lid member 25 between the closed state and the open state includes a vertically oriented guide rail 33, and an opening / closing handle provided on the lid member 25. 28, and the removing mechanism 20 is provided with an upper edge 24 a of the opening 24 and a switching mechanism 31.

除去機構２０においては、蓋部材２５が切替機構３１によって閉状態から開状態に切り換えられると、縁部２４ａが除去対象面としての蓋部材２５の内面部に対して相対移動し、蓋部材２５の内面部に付着している塵埃が除去される。すなわち、蓋部材２５の内面部が後部カバー１５Ｂに対して排ワラ切断装置１０の上方向に摺動し、この摺動によって蓋部材２５の内面部が縁部２４ａに対して移動し、蓋部材２５の内面部に付着している塵埃が縁部２４ａによって削り取られる。   In the removing mechanism 20, when the lid member 25 is switched from the closed state to the open state by the switching mechanism 31, the edge 24a relatively moves with respect to the inner surface of the lid member 25 as a surface to be removed. Dust adhering to the inner surface is removed. In other words, the inner surface of the lid member 25 slides upward with respect to the rear cover 15B, and the sliding moves the inner surface of the lid member 25 with respect to the edge 24a. Dust adhering to the inner surface of 25 is scraped off by edge 24a.

第３別実施形態では、蓋部材２５が閉状態から上昇スライドすることによって開状態に状態変更し、開口２４の上側の縁部２４ａによって塵埃の削り取りが行われる構成を採用しているが、蓋部材２５が閉状態から下降スライドすることによって開状態に状態変更し、開口２４の下側の縁部によって塵埃の削り取りが行われる構成を採用してもよい。   In the third alternative embodiment, the lid member 25 is changed from the closed state to the open state by sliding upward, and dust is cut off by the upper edge 24a of the opening 24. A configuration may be adopted in which the state is changed to the open state by sliding the member 25 downward from the closed state, and dust is cut off by the lower edge of the opening 24.

蓋部材２５を上下スライドによって後部カバー１５Ｂに対して相対移動させる場合、開口２４の横幅を広くし、横方向に並ぶ２つ以上の蓋部材２５を設けてもよい。   When the lid member 25 is moved relative to the rear cover 15B by sliding up and down, the width of the opening 24 may be widened and two or more lid members 25 arranged in the horizontal direction may be provided.

本発明は、脱穀装置の前後向きを機体前後向きに設定されたコンバインの他、脱穀装置の前後向きが機体横向きに設定されたコンバインに適用できる。   INDUSTRIAL APPLICABILITY The present invention can be applied to a combine in which the front and rear direction of the threshing device is set to the machine body sideways, in addition to the combine in which the front and rear direction of the threshing device is set to the machine body front and rear direction.

９ 脱穀装置
１０ 排ワラ切断装置
１５ ケース
１５Ａ ケース本体
１５Ｂ 後部カバー
１８ 駆動刃体
１８ａ 駆動軸
１８ｂ 切断刃
１９ 受刃体
１９ａ 切断軸
１９ｂ 受刃
２０ 除去機構
２４ 開口
２５ 蓋部材
２９ ロック機構
３１ 切替え機構 Reference Signs List 9 threshing device 10 waste straw cutting device 15 case 15A case body 15B rear cover 18 drive blade 18a drive shaft 18b cutting blade 19 receiving blade 19a cutting shaft 19b receiving blade 20 removal mechanism 24 opening 25 lid member 29 locking mechanism 31 switching mechanism

Claims (6)

刈取穀稈を脱穀処理する脱穀装置と、
前記脱穀装置の後部に連結され、脱穀処理後の排ワラを切断処理する排ワラ切断装置と、が備えられ、
前記排ワラ切断装置に、駆動軸、及び、前記駆動軸に支持された複数の切断刃を有する駆動刃体と、前記駆動軸と平行な切断軸、及び、前記切断軸に支持されるとともに前記切断刃に対応する複数の受刃を有する受刃体と、前記駆動刃体及び前記受刃体を収容するケースと、が備えられ、
前記ケースに、ケース本体と、前記ケース本体の後部を構成する後部カバーと、が備えられ、
前記ケースの内部に、前記後部カバーの内面部に付着した塵埃を除去可能な除去機構が備えられているコンバイン。 A threshing device for threshing the harvested culm,
A waste straw cutting device that is connected to a rear portion of the threshing device and that performs a cutting process on the waste straw after the threshing process;
The discharge straw cutting device, a drive shaft, and a drive blade body having a plurality of cutting blades supported by the drive shaft, a cutting shaft parallel to the drive shaft, and supported by the cutting shaft and A receiving blade body having a plurality of receiving blades corresponding to the cutting blade, and a case accommodating the driving blade body and the receiving blade body, are provided,
The case includes a case body and a rear cover that forms a rear portion of the case body,
A combine provided with a removing mechanism capable of removing dust attached to an inner surface of the rear cover inside the case. 前記除去機構は、前記内面部のうちの機体横外側部分を除去対象面としている請求項１に記載のコンバイン。   2. The combine according to claim 1, wherein the removal mechanism sets a laterally outer portion of the inner surface of the body as a removal target surface. 3. 前記除去機構は、前記後部カバーに支持され、除去対象面に対して相対移動操作可能な部材である請求項１または２に記載のコンバイン。   The combine according to claim 1, wherein the removing mechanism is a member supported by the rear cover and capable of performing a relative movement operation with respect to a surface to be removed. 前記除去機構は、除去対象面に対して立ち上がる折曲げ端部を有する板部材であり、
前記板部材は、前記折曲げ端部によって塵埃を削り取るように構成されている請求項３に記載のコンバイン。 The removal mechanism is a plate member having a bent end that rises with respect to the removal target surface,
The combine according to claim 3, wherein the plate member is configured to scrape dust by the bent end portion. 前記後部カバーのうちの塵埃除去の対象面を有する箇所に形成された開口と、前記開口を塞ぐ蓋部材と、が備えられ、
前記蓋部材は、前記後部カバーに対して摺接して前記開口を塞ぐ閉状態と、前記開口を開ける開状態と、に状態切り換え可能に構成され、
前記除去機構に、前記開口の縁部と、前記蓋部材を前記閉状態と前記開状態とに状態切り換えする切替機構と、が備えられ、
前記蓋部材の内面に付着した塵埃が前記蓋部材の前記後部カバーに対する摺動によって削り取られる請求項１に記載のコンバイン。 An opening formed at a portion of the rear cover having a target surface for dust removal, and a lid member that closes the opening,
The lid member is configured to be switchable between a closed state in which the opening is closed by slidingly contacting the rear cover and an open state in which the opening is opened,
The removing mechanism includes an edge of the opening, and a switching mechanism that switches the state of the lid member between the closed state and the open state,
The combine according to claim 1, wherein dust attached to an inner surface of the lid member is scraped off by sliding the lid member against the rear cover. 前記蓋部材を前記閉状態に保持するロック機構が備えられている請求項５に記載のコンバイン。   The combine according to claim 5, further comprising a lock mechanism for holding the lid member in the closed state.
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JP2008182997A (en) * 2007-01-31 2008-08-14 Iseki & Co Ltd Lawn mower
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JP2010099027A (en) * 2008-10-24 2010-05-06 Kubota Corp Cutting blade of stalk shredding machine
JP2014045751A (en) * 2012-09-04 2014-03-17 Matsuyama Plow Mfg Co Ltd Levee plastering machine
JP2015192616A (en) * 2014-03-31 2015-11-05 ヤンマー株式会社 Granular material application device and working vehicle equipped therewith

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5518976U (en) * 1978-07-25 1980-02-06
JPS59122046U (en) * 1983-02-05 1984-08-17 株式会社四国製作所 Straw cutter clog removal device
JP2008182997A (en) * 2007-01-31 2008-08-14 Iseki & Co Ltd Lawn mower
US7510472B1 (en) * 2007-10-29 2009-03-31 Cnh America Llc Combine harvester residue chopper active counter knife assembly
JP2010099027A (en) * 2008-10-24 2010-05-06 Kubota Corp Cutting blade of stalk shredding machine
JP2014045751A (en) * 2012-09-04 2014-03-17 Matsuyama Plow Mfg Co Ltd Levee plastering machine
JP2015192616A (en) * 2014-03-31 2015-11-05 ヤンマー株式会社 Granular material application device and working vehicle equipped therewith

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