JP6537447B2

JP6537447B2 - Work machine

Info

Publication number: JP6537447B2
Application number: JP2015246386A
Authority: JP
Inventors: 西田　和彦; 和彦西田; 井上　喜博; 喜博井上; 昌希光原; 由佳山川
Original assignee: Kubota Corp
Current assignee: Kubota Corp
Priority date: 2015-12-17
Filing date: 2015-12-17
Publication date: 2019-07-03
Anticipated expiration: 2035-12-17
Also published as: JP2017108692A; CN206658413U

Description

本発明は、コンバインやトラクタ等の作業機に関し、詳しくは、運転部の上方を覆うキャノピーを備えている作業機に関する。 BACKGROUND OF THE INVENTION Field of the Invention The present invention relates to a working machine such as a combine and a tractor, and more particularly to a working machine provided with a canopy covering the upper side of an operating unit.

従来の作業機では、キャノピーは、運転部の上方に位置するルーフ部とそのルーフ部を支持する支持フレームとを備えており、さらに、ルーフ部は、支持フレームにて支持された上面部と、上面部の機体横幅方向両側端部から下方に向けて延設された横側部とを備えている。そして、ルーフ部の横側部は内面が滑らかな面に形成されていた（例えば、特許文献１参照）。 In the conventional work machine, the canopy is provided with a roof portion located above the operation portion and a support frame for supporting the roof portion, and the roof portion is an upper surface portion supported by the support frame, And a lateral side extending downward from both lateral side ends of the upper body in the lateral direction. And the side part of the roof part was formed in the surface where the inner surface is smooth (for example, refer patent document 1).

特開２０１１−１２０５１２号公報JP, 2011-120512, A

上記従来構成では、キャノピーの内部において、刈取作業に伴って発生する音が横側部の滑らかな内面で反射して、運転部に搭乗しているオペレータ（操作者）の頭部付近に集中する傾向があった。その結果、オペレータにとって耳障りとなり、快適な作業を妨げるおそれがあった。 In the above-described conventional configuration, in the interior of the canopy, the sound generated as a result of the reaping work is reflected by the smooth inner surface of the lateral side and concentrated in the vicinity of the head of the operator (operator) boarding the driver. There was a tendency. As a result, the operator may be bothersome and interfere with comfortable work.

キャノピーは、軽量化のために合成樹脂材により構成される場合が多いが、上記構成の横側部は剛性が高くないので、強度補強のために厚みを大にする必要があり、軽量化し難しい不利があった。 Although the canopy is often made of synthetic resin for weight reduction, the lateral side of the above configuration is not high in rigidity, so it is necessary to increase the thickness for reinforcement, making it difficult to achieve weight reduction There was a disadvantage.

そこで、軽量化を図りながらも、横側部での音の反射によってオペレータの頭部付近に音が集中することを回避して、運転部における作業快適性を向上することが望まれていた。 Therefore, it has been desired to improve the work comfort in the driver by avoiding the concentration of sound near the head of the operator due to the reflection of sound on the lateral side while achieving weight reduction.

本発明に係る作業機の特徴構成は、
運転部と、前記運転部の上方を覆うキャノピーとを備え、
前記キャノピーは、前記運転部の上方に位置するルーフ部と、前記ルーフ部を支持する支持フレームとを備え、
前記ルーフ部は、前記支持フレームにて支持された上面部と、前記上面部の機体横幅方向両側端部から下方に向けて延設された横側部とを備え、
前記上面部の内面に吸音材が備えられ、且つ、前記横側部にのみ、その内面に内方側に向けて突出する複数の凸部が備えられ、
前記横側部は断面略波形状の一枚の板状体で構成され、且つ、複数の前記凸部は前記板状体の凹凸により形成されている点にある。 The characteristic configuration of the working machine according to the present invention is
A driving unit and a canopy covering the upper side of the driving unit;
The canopy includes a roof portion positioned above the driving portion, and a support frame supporting the roof portion.
The roof portion includes an upper surface portion supported by the support frame, and a lateral side portion extending downward from both end portions of the upper surface portion in the lateral direction of the vehicle body,
A sound absorbing material is provided on the inner surface of the upper surface portion, and a plurality of convex portions projecting inward on the inner surface are provided only on the lateral side.
The said side part is comprised by the plate-shaped body of 1 sheet of cross-sectional substantially wave-shaped, and the some said convex part is in the point formed of the unevenness | corrugation of the said plate-shaped body .

本発明によれば、ルーフ部における横側部の内面に内方側に向けて突出する複数の凸部が備えられる。このような複数の凸部が備えられることにより、刈取作業に伴って発生する音が、横側部の内面にて乱反射する。その結果、横側部での音の反射によってオペレータの頭部付近に音が集中することを回避できる。 According to the present invention, the inner surface of the lateral side of the roof portion is provided with a plurality of convex portions projecting inward. By providing such a plurality of convex portions, the sound generated along with the reaping work is irregularly reflected on the inner surface of the lateral side. As a result, it is possible to prevent the sound from being concentrated near the head of the operator due to the reflection of the sound on the side.

横側部に複数の凸部を備えることにより、横側部における剛性を向上させることができ、材質の厚みを薄くして軽量化するようにしながらも、充分な強度を維持することができる。 By providing a plurality of convex portions on the lateral side, the rigidity on the lateral side can be improved, and sufficient strength can be maintained while reducing the thickness of the material and reducing the weight.

従って、軽量化を図りながらも、オペレータの頭部付近に音が集中して耳障りと感じるおそれが少なくなり、運転部における作業快適性を向上することが可能となった。 Therefore, it is possible to reduce the possibility of noise being concentrated in the vicinity of the operator's head and feeling offensive while reducing the weight, and to improve the work comfort in the driving unit.

又、本発明によれば、横側部は断面略波形状の一枚の板状体からなり、その板状体の凹凸のうち外方に向けて出っ張る箇所が凸部を形成する。このような構成であれば、板状体を成形加工することで対応でき、作製が容易で低コスト化を図ることができる。
さらに、本発明によれば、刈取作業に伴って発生する音が、キャノピーの上面部にて反射しようとしても、上面部の内面に備えられた吸音材によって吸収される。その結果、刈取作業に伴って発生する音が、横側部において乱反射して集中することが回避でき、上面部にて反射することがなく、オペレータの頭部付近に音が集中することをより一層回避させ易いものになる。 Further, according to the present invention , the lateral side portion is formed of a single plate-like body having a substantially wave-shaped cross section, and among the irregularities of the plate-like body, a portion protruding outward is a convex portion. Such a configuration can be coped with by forming and processing a plate-like body, which can be easily manufactured and cost reduction can be achieved.
Furthermore, according to the present invention, even if it is going to reflect by the upper surface part of a canopy, the sound which accompanies cutting operation is absorbed by the sound absorption material with which the inner surface of the upper surface part was equipped. As a result, it is possible to prevent the sound generated as a result of the reaping operation from being diffusely reflected and concentrated at the lateral side, not to be reflected at the upper surface, and to be concentrated near the head of the operator. It will be easier to avoid.

本発明においては、前記ルーフ部は、前記運転部の前端部の上方から運転座席の上方にわたって備えられ、前記横側部のうち機体前後方向で前記運転座席の位置に対応する箇所に、前記凸部を備えていると好適である。 In the present invention, the roof portion is provided from above the front end portion of the driving portion to above the driver's seat, and the convex portion is provided at a position corresponding to the position of the driver's seat in the longitudinal direction of the vehicle. It is preferable to have a part.

本構成によれば、ルーフ部は、運転部の前端部の上方から運転座席の上方にわたる広い範囲にわたって備えられるので、運転座席に着座するオペレータに対する日除け作用を良好に発揮することができる。そして、横側部のうち機体前後方向で運転座席の位置に対応する箇所に凸部を備えているので、横側部での音の反射によってオペレータの頭部付近に音が集中することを回避できるものでありながら、横側部の機体前後方向全域にわたって凸部を備える構成に比べて、構成が簡素になり、低コスト化を図れる。 According to this configuration, since the roof portion is provided over a wide range extending from above the front end portion of the driving portion to above the driver seat, it is possible to well exhibit a sunshade effect for the operator seated on the driver seat. And since a convex part is provided in a portion corresponding to the position of the driver's seat in the longitudinal direction of the vehicle in the lateral side, the sound is prevented from being concentrated in the vicinity of the operator's head by the reflection of the sound in the lateral side. Compared with the structure provided with a convex part over the whole body longitudinal direction of a side part although it is possible, composition becomes simple and it can aim at cost reduction.

本発明においては、前記凸部は、機体前後方向に沿って線状に延びていると好適である。 In the present invention, preferably, the convex portion extends linearly along the longitudinal direction of the vehicle.

本構成によれば、凸部は機体前後方向に沿って線状に延びるものであるから、小径の凸部を多数設けるものに比べて、構成を簡素にしながら、前後方向に広い範囲にわたり強度補強することが可能となる。 According to this configuration, since the convex portion linearly extends along the longitudinal direction of the airframe, strength is reinforced over a wide range in the longitudinal direction while simplifying the configuration as compared with the case where a large number of convex portions having small diameters are provided. It is possible to

本発明においては、複数の前記凸部が上下に並んでいると好適である。 In the present invention, it is preferable that the plurality of convex portions are vertically aligned.

本構成によれば、複数の凸部が上下に並ぶことで、上下に広い範囲にわたって音を乱反射させることができる。 According to this configuration, since the plurality of convex portions are vertically arranged, the sound can be diffusely reflected over a wide range in the vertical direction.

本発明においては、前記凸部が非直線状に延びていると好適である。 In the present invention, it is preferable that the protrusions extend in a non-linear manner.

凸部が直線状に延びるものでは、凸部の延設方向に沿って折れ曲がる場合に剛性が低くなる不利がある。本構成では、凸部が非直線状に延びているから、同じ厚みであっても直線状に延びるものに比べて剛性を高めることが可能となる。その結果、直線状に延びるものに比べて、同じ剛性を備えるようにしながら厚みを薄くすることができ、軽量化を促進できる。 In the case where the convex portion extends linearly, there is a disadvantage that the rigidity is lowered when it is bent along the extending direction of the convex portion. In this configuration, since the convex portions extend in a non-linear manner, the rigidity can be enhanced as compared with those extending in a linear manner even with the same thickness. As a result, the thickness can be reduced while providing the same rigidity as compared with one extending linearly, and weight reduction can be promoted.

本発明においては、前記横側部に、内外面にわたって貫通する開口が複数形成されていると好適である。 In the present invention, it is preferable that a plurality of openings penetrating the inner and outer surfaces are formed on the lateral side.

本構成によれば、キャノピーの横側部よりも内方側の騒音を開口を通して外方に拡散させることができ、作業の快適性を向上できる。 According to this configuration, the noise on the inner side of the lateral side of the canopy can be diffused outward through the opening, and the comfort of work can be improved.

本発明においては、
前記横側部は断面略波形状の一枚の板状体であって、複数の前記凸部は前記板状体の凹凸により形成され、
隣り合う前記凸部同士の間に外方側に向けて突出する状態で凹部が形成され、
上部側に位置する前記凹部の底部と、下部側に位置する前記凸部の頂部との間に、前記開口が形成されていると好適である。 In the present invention,
The lateral side is a single plate-like body having a substantially wave-shaped cross section, and the plurality of convex portions are formed by the unevenness of the plate-like body,
A concave portion is formed in a state of projecting outward between the adjacent convex portions,
It is preferable that the opening is formed between the bottom of the recess located on the upper side and the top of the protrusion located on the lower side.

本構成によれば、横側部は、板状体の凹凸のうち内方に向けて突出する箇所が凸部を形成し、隣り合う凸部同士の間に外方側に向けて突出する箇所が凹部を形成する。そして、上部側に位置する凹部の底部すなわち、外方側に向けて突出する箇所の頂部と、下部側に位置する凸部の頂部すなわち、内方側に向けて突出する箇所の頂部との間に、開口が形成される。 According to this configuration, in the lateral side portion, the portion projecting inward among the concavities and convexities of the plate-like member forms a convex portion, and the portion projecting outward between the adjacent convex portions Form a recess. And between the bottom of the recess located on the upper side, that is, the top of the portion protruding outward, and the top of the protrusion located on the lower side, that is, the top of the portion protruding inwardly An opening is formed.

このような上部側に位置して外方側に向けて突出する箇所の頂部と、下部側に位置して内方側に向けて突出する箇所の頂部との間というのは、横側部における凹凸面のうちの外面が下方に向かう面部分に相当する。つまり、当該部分に形成された開口は下向きに開放している。 The upper side of the upper side and the upper side of the point protruding outward, and the lower side of the upper side of the protruding point in the lower side The outer surface of the uneven surface corresponds to a surface portion directed downward. That is, the opening formed in the portion is opened downward.

その結果、雨水等が降りかかっても、開口を通してキャノピーの内方に侵入するおそれが少なく、キャノピー内部の騒音は開口を通して外方に拡散させることができる。 As a result, even if rain water or the like falls, there is little possibility of invading the interior of the canopy through the opening, and noise inside the canopy can be diffused outward through the opening.

本発明においては、前記横側部は、下側に位置するほど機体横幅方向外方側に位置する傾斜姿勢であると好適である。 In the present invention, it is preferable that the lateral side is in an inclined posture which is positioned outward in the widthwise direction of the vehicle body as it is positioned lower.

本構成によれば、横側部は、下側に位置するほど機体横幅方向外方側に位置しているので、横側部の内面で反射した音がキャノピーの内部で籠るおそれが少なくなる。しかも、横側部がオペレータの頭部に近づいて圧迫感を感じる等の不利がなく、その面からも快適性の向上を図れる。
本発明においては、運転部と、前記運転部の上方を覆うキャノピーとを備え、前記キャノピーは、前記運転部の上方に位置するルーフ部と、前記ルーフ部を支持する支持フレームとを備え、前記ルーフ部は、前記支持フレームにて支持された上面部と、前記上面部の機体横幅方向両側端部から下方に向けて延設された横側部とを備え、且つ、前記横側部の内面に内方側に向けて突出する複数の凸部を備えており、前記横側部に、内外面にわたって貫通する開口が複数形成され、前記横側部は断面略波形状の一枚の板状体であって、複数の前記凸部は前記板状体の凹凸により形成され、隣り合う前記凸部同士の間に外方側に向けて突出する状態で凹部が形成され、上部側に位置する前記凹部の底部と、下部側に位置する前記凸部の頂部との間に、前記開口が形成されていると好適である。 According to this configuration, the lower the lateral side is located on the outer side in the lateral direction of the vehicle body, the less the possibility that the sound reflected by the inner surface of the lateral side may be heard inside the canopy. In addition, there is no disadvantage that the lateral side approaches the head of the operator and feels a feeling of pressure, etc., and from the aspect as well, the comfort can be improved.
In the present invention, an operating unit and a canopy that covers the upper side of the operating unit are provided, and the canopy includes a roof that is located above the operating unit, and a support frame that supports the roof. The roof portion includes an upper surface portion supported by the support frame, and a lateral side portion extending downward from both end portions of the upper surface portion in the lateral direction of the vehicle body, and an inner surface of the lateral side portion. And a plurality of openings projecting inward from the inner side and the outer side are formed in the lateral side, and the lateral side has a plate-like shape having a substantially wave-shaped cross section. A plurality of the convex portions are formed by the concavities and convexities of the plate-like body, and the concave portions are formed in a state of projecting outward between the adjacent convex portions, and are positioned on the upper side Between the bottom of the recess and the top of the protrusion located on the lower side It is preferable that the opening is formed.

コンバインの全体側面図である。It is a whole side view of a combine. コンバインの全体平面図である。It is a whole top view of a combine. ルーフ部の側面図である。It is a side view of a roof part. ルーフ部の底面図である。It is a bottom view of a roof part. ルーフ部の背面図である。It is a rear view of a roof part. キャノピーの縦断側面図である。It is a vertical side view of a canopy. キャノピーの底面図である。It is a bottom view of a canopy. ルーフ部の一部断面図である。It is a partial cross section figure of a roof part. 別実施形態のルーフ部の側面図である。It is a side view of the roof part of another embodiment. 別実施形態のルーフ部の底面図である。It is a bottom view of the roof part of another embodiment. 別実施形態のルーフ部の一部断面図である。It is a partial cross section figure of the roof part of another embodiment.

以下、本発明に係る作業機の実施形態を作業機の一例としてのコンバインに適用した場合について図面に基づいて説明する。 Hereinafter, a case where an embodiment of a working machine according to the present invention is applied to a combine as an example of a working machine will be described based on the drawings.

この実施形態で、機体の前後方向を定義するときは、作業状態における機体進行方向に沿って定義し、機体の左右方向を定義するときは、機体進行方向視で見た状態で左右を定義する。すなわち、図１，２に符号（Ｆ）で示す方向が機体前側、図１，２に符号（Ｂ）で示す方向が機体後側である。図２に符号（Ｌ）で示す方向が機体左側、図２に符号（Ｒ）で示す方向が機体右側である。 In this embodiment, when defining the longitudinal direction of the aircraft, it is defined along the traveling direction of the aircraft in the working state, and when defining the left-right direction of the aircraft, the left and right are defined in the state viewed in the traveling direction of the aircraft. . That is, the direction shown by the code (F) in FIGS. 1 and 2 is the front side of the machine, and the direction shown by the code (B) in FIGS. The direction indicated by the symbol (L) in FIG. 2 is the left side of the machine, and the direction indicated by the symbol (R) in FIG. 2 is the right side of the machine.

〔全体構成〕
図１及び図２に、稲や麦などの作物を収穫対象とする普通型コンバインが示されている。このコンバインは、機体フレーム１の下部に左右一対のクローラ式走行装置２を装備した走行機体の前部に、収穫対象の作物としての植立穀稈を刈り取って後方に向けて搬送する刈取搬送部３が昇降揺動可能に連結されている。走行機体は、機体フレーム１上に、刈取搬送部３から搬送される作物としての刈取穀稈を脱穀処理する脱穀装置４、脱穀装置４にて得られた穀粒を貯留する穀粒タンク５、穀粒タンク５に貯留される穀粒を機外に排出するための穀粒排出装置６、オペレータが搭乗して運転操作を行う運転部７、運転部の上方を覆うキャノピー８、脱穀装置４から排出される排ワラを細断処理する排ワラ処理装置３９等が備えられている。〔overall structure〕
1 and 2 show ordinary combine harvesters for harvesting crops such as rice and wheat. This combine harvester is a mowing and conveying section for cutting a cropped crop as a crop to be harvested at the front of a traveling vehicle equipped with a pair of left and right crawler type traveling devices 2 at the lower part of the vehicle body frame 1 and transporting it backward. 3 are connected so as to be able to move up and down. The traveling machine includes a threshing device 4 for threshing a reaping grain as a crop carried from the reaper transport unit 3, a grain tank 5 for storing grains obtained by the threshing device 4, on the airframe frame 1. The grain discharging device 6 for discharging grains stored in the grain tank 5 out of the machine, the operation unit 7 on which the operator carries and performs the driving operation, the canopy 8 covering the upper side of the operation unit, and the threshing device 4 The waste straw processing apparatus 39 grade | etc., Which shreds the waste straw discharged | emitted is provided.

運転部７は機体前部右側に位置しており、運転部７の後方に穀粒タンク５が備えられている。そして、運転部７の下方側には、駆動用のエンジンＥが備えられている。走行機体において、脱穀装置４が左側に位置し、穀粒タンク５が右側に位置する状態で、脱穀装置４と穀粒タンク５とが左右方向に並ぶ状態で備えられている。 The driving unit 7 is located on the front right side of the machine body, and a grain tank 5 is provided behind the driving unit 7. A driving engine E is provided below the driving unit 7. In the traveling vehicle, the threshing device 4 and the grain tank 5 are provided side by side in the left-right direction with the threshing device 4 positioned on the left side and the grain tank 5 positioned on the right side.

このコンバインは、植立穀稈の株元を切断して刈り取り、刈り取った刈取穀稈の全部を脱穀装置４に投入する全稈投入型に構成されている。 This combine is configured as an all-waste dumping type in which the stock origin of the planted rice bran is cut and harvested, and all the mown harvested rice bran is put into the threshing device 4.

刈取搬送部３は、機体走行に伴って、植立穀稈を刈り取る刈取部９と、刈取部９にて刈り取られた刈取穀稈を機体後部側の脱穀装置４に向けて搬送するフィーダ１０とを備え、機体フレーム１とフィーダ１０とにわたって架設した刈取昇降用の油圧シリンダ１１が伸縮作動することで、横軸芯Ｐ１周りで昇降揺動自在に支持されている。 The reaper transport unit 3 is a reaper 9 for reaping the built-up grain weirs as the machine travels, and a feeder 10 for transporting the reapsing grain weed reaped by the reaper 9 toward the threshing device 4 on the rear side of the machine. The cutting and lifting hydraulic cylinder 11 installed across the machine body frame 1 and the feeder 10 is extended and contracted to be supported so as to be movable up and down around the horizontal axis P1.

刈取部９は、刈取対象となる植立穀稈と非刈取対象の植立穀稈とを分草する左右一対のデバイダ１３と、収穫対象の植立穀稈を後方に向けて掻き込む回転リール１４と、収穫対象の植立穀稈の株元側を切断して刈り取るバリカン形の刈刃１５と、切断後の刈取穀稈を左右方向の中間側に横送りして寄せ集めて後方に向けて送り出すオーガ１６とを備えている。 The reaper 9 is a pair of left and right dividers 13 for separating the planted cereals to be harvested and the non-cutted cereals, and a rotating reel for scraping the harvested cereals backward. 14 and a hair clipper-shaped cutting blade 15 for cutting and cutting off the original side of the harvest-targeted grain casket, and the recut grain casket after cutting to the middle side in the lateral direction, gathered and gathered backward And an auger 16 for sending out.

フィーダ１０は、図１に示すように、角筒状のフィードケース１７の内部において、後上部側に位置する駆動輪体１８と、前下部側に位置する従動輪体１９とにわたって、左右一対の無端回動チェーン２０が巻回され、左右一対の無端回動チェーン２０に亘って所定ピッチ毎に係止搬送体２０ａが架設されている。フィードケース１７の前端部に刈取部９に連通する入口が形成され、フィードケース１７の後端部は、脱穀装置４に連通接続されている。そして、無端回動チェーン２０が回動することで、刈取部９から受け渡された刈取穀稈を脱穀装置４に向けて搬送する。 As shown in FIG. 1, the feeder 10 spans a drive wheel 18 located on the rear upper side and a driven wheel 19 located on the front lower side inside the rectangular tubular feed case 17, and a pair of left and right The endless pivoting chain 20 is wound, and a locking transport body 20a is bridged across the pair of left and right endless pivoting chains 20 at a predetermined pitch. An inlet communicating with the reaper 9 is formed at the front end of the feed case 17, and the rear end of the feed case 17 is communicatively connected to the threshing device 4. Then, by rotating the endless rotation chain 20, the reaper for grain transferred from the reaper 9 is transported toward the threshing device 4.

〔キャノピー〕
次に、キャノピー８について説明する。
図１，６，７に示すように、キャノピー８は、運転部７の上方に位置するルーフ部２１と、ルーフ部２１を支持する支持フレーム２２とを備えている。図３〜７に示すように、ルーフ部２１は、支持フレーム２２にて支持された上面部２３と、上面部２３の機体横幅方向両側端部から下方に向けて延設された横側部２４とを備えている。 [Canopy]
Next, the canopy 8 will be described.
As shown in FIGS. 1, 6 and 7, the canopy 8 is provided with a roof portion 21 located above the driving portion 7 and a support frame 22 for supporting the roof portion 21. As shown in FIGS. 3 to 7, the roof portion 21 has an upper surface portion 23 supported by the support frame 22 and a lateral side portion 24 extending downward from both ends of the upper surface portion 23 in the machine body lateral width direction. And have.

図６，７に示すように、支持フレーム２２は、穀粒タンク５の前壁部から固定延設された左右一対の支柱２５と、その支柱２５の上端部に支持されるとともに、ルーフ部２１の下面に位置してルーフ部２１を支持するルーフフレーム２６とを備えている。ルーフフレーム２６は丸パイプ材を平面視で略ループ状に曲げて形成され、後端側の横連結部２６ａに備えられた左右一対のブラケット２７を介して左右の支柱２５の上部に連結されている。 As shown in FIGS. 6 and 7, the support frame 22 is supported by a pair of left and right columns 25 fixedly extended from the front wall of the grain tank 5 and supported by the upper ends of the columns 25. And a roof frame 26 for supporting the roof portion 21. The roof frame 26 is formed by bending a round pipe material into a substantially loop shape in plan view, and is connected to the upper portions of the left and right columns 25 via a pair of left and right brackets 27 provided on the rear connection side horizontal connecting portion 26a There is.

図４，５に示すように、ルーフフレーム２６は、ルーフ部２１の上面部２３における周部に沿って位置して上面部２３に固定されている。上面部２３には、外方（上方）に向けて突出する状態で、言い換えると、内方側から見ると凹入する状態で、ルーフフレーム２６が入り込むための凹入部２８が形成されている。 As shown in FIGS. 4 and 5, the roof frame 26 is positioned along the periphery of the top surface 23 of the roof 21 and is fixed to the top surface 23. The upper surface portion 23 is formed with a recessed portion 28 for the roof frame 26 to enter in a state of projecting outward (upward), in other words, in a state of being recessed when viewed from the inner side.

ルーフフレーム２６が上面部２３の内面側から凹入部２８に入り込み、複数の連結箇所にて、上面部２３とルーフフレーム２６とが連結されている。各連結箇所には、上面部２３及びルーフフレーム２６の夫々に上下方向に貫通する貫通孔２９，３０が形成され、それらにわたって挿通するボルト３１とナット３２との締結により、上面部２３がルーフフレーム２６に固定される。 The roof frame 26 enters the recessed portion 28 from the inner surface side of the upper surface portion 23, and the upper surface portion 23 and the roof frame 26 are connected at a plurality of connection points. Through holes 29 and 30 penetrating in the vertical direction are formed in each of the upper surface portion 23 and the roof frame 26 at each connection portion, and the upper surface portion 23 is a roof frame by fastening the bolt 31 and nut 32 inserted therethrough. It is fixed at 26.

ルーフ部２１における上面部２３の機体横幅方向すなわち、左右方向両側端部から延設された左右両側の横側部２４は、図５に示すように、下側に位置するほど機体横幅方向外方側に位置する傾斜姿勢に設けられている。横側部２４は、機体後部側は上下幅が広く、機体前部側ほど順次幅狭になる状態で設けられている。 As shown in FIG. 5, the side portions 24 on both the left and right sides of the upper surface portion 23 of the roof portion 21 extending from the lateral side end portions in the lateral direction are the outward side in the lateral direction of the body in the lower side. It is provided in the inclined posture located on the side. The lateral side 24 is provided such that the width in the vertical direction is wide at the rear side of the airframe and the width gradually decreases toward the front side of the airframe.

左右両側の横側部２４には、その内面に内方側に向けて突出する複数の凸部３３を備えている。具体的には、図８に示すように、横側部２４は断面略波形状の一枚の板状体であって、複数の凸部３３は板状体の凹凸により形成されている。 The lateral side 24 on both the left and right sides is provided with a plurality of convex portions 33 projecting inward on its inner surface. Specifically, as shown in FIG. 8, the lateral side portion 24 is a single plate-like body having a substantially wave-shaped cross section, and the plurality of convex portions 33 are formed by the unevenness of the plate-like body.

説明を加えると、キャノピー８におけるルーフ部２１は、例えば真空成型等の金型成形加工により合成樹脂材にて一体的に形成され、一枚の板状体にて構成されている。そして、図３，４，５、８に示すように、左右両側の横側部２４は、断面略波形状の一枚の板状体となるように成形加工される。従って、内方側に向けて突出する複数の凸部３３（外方側から見ると凹入部となる）は板状体の凹凸により形成されている。 To add to the description, the roof portion 21 in the canopy 8 is integrally formed of a synthetic resin material, for example, by die molding processing such as vacuum molding, and is constituted by a single plate-like body. Then, as shown in FIGS. 3, 4, 5 and 8, the lateral side portions 24 on the left and right sides are formed and processed into a single plate-like body having a substantially wave-shaped cross section. Accordingly, the plurality of convex portions 33 (which become concave portions when viewed from the outer side) protruding inward are formed by the unevenness of the plate-like body.

図１に示すように、ルーフ部２１は、運転部７の前端部の上方から運転座席３４の上方にわたって前後方向に長く備えられている。横側部２４のうち機体前後方向で運転座席３４の位置に対応する箇所に上記したような複数の凸部３３が備えられている。 As shown in FIG. 1, the roof portion 21 is provided long in the front-rear direction from above the front end portion of the driving portion 7 to above the driver seat 34. A plurality of convex portions 33 as described above are provided at a position corresponding to the position of the driver's seat 34 in the longitudinal direction of the vehicle in the lateral side portion 24.

凸部３３は、機体前後方向に沿って線状に延びており、複数（３個）の凸部３３が上下に並ぶ状態で備えられている。しかも、凸部３３が機体前後方向に沿って非直線状に延びている。具体的には、図３に示すように、凸部３３は、機体側面視で前後中間部が下向きに突出するように湾曲する非直線状に形成されている。 The convex portion 33 linearly extends along the longitudinal direction of the machine body, and a plurality of (three) convex portions 33 are arranged in the vertical direction. Moreover, the convex portion 33 extends in a non-linear manner along the longitudinal direction of the airframe. Specifically, as shown in FIG. 3, the convex portion 33 is formed in a non-linear shape that curves so that the front and rear intermediate portions project downward in the side view of the vehicle body.

上述したように、横側部２４が、断面略波形状の一枚の板状体にて形成され、その板状体の凹凸により内方側に向けて突出する複数の凸部３３が形成される。そして、隣り合う凸部３３同士の間に外方側に向けて突出する状態で、言い換えると、内方側から見ると凹入する状態で凹部３５が形成される。 As described above, the lateral side portion 24 is formed of a single plate-like body having a substantially wave-shaped cross section, and the plurality of convex portions 33 projecting inward are formed by the concavities and convexities of the plate-like body. Ru. And in the state which protrudes outward between adjacent convex parts 33, in other words, when it sees from inner side, crevice 35 is formed in the state where it dents.

図８に示すように、凸部３３の頂部３３ａ及び凹部３５の底部３５ａは、いずれも湾曲状に曲がる形状となっている。キャノピー８は、上述したように真空成型等の金型成形加工により合成樹脂材にて一体的に形成されるものであり、軽量にするために薄く形成される。上記したように凸部３３の頂部３３ａ及び凹部３５の底部３５ａが湾曲状に曲がる形状であるから、応力が集中しにくく、しかも、成型時に型抜きし易いという利点がある。 As shown in FIG. 8, the top 33a of the projection 33 and the bottom 35a of the recess 35 both have a curved shape. As described above, the canopy 8 is integrally formed of a synthetic resin material by die molding processing such as vacuum molding, and is thinly formed to be lightweight. As described above, since the top 33a of the convex portion 33 and the bottom 35a of the concave portion 35 are curved in a curved shape, there is an advantage that stress is not easily concentrated and it is easy to demold at the time of molding.

図６，７に示すように、上面部２３の内面側（下面側）には、ルーフフレーム２６で囲まれる領域の全域に吸音材３６が備えられている。吸音材３６は、上面部２３の内面に接着剤により貼り付け固定されている。 As shown in FIGS. 6 and 7, a sound absorbing material 36 is provided on the inner surface side (lower surface side) of the upper surface portion 23 in the entire region surrounded by the roof frame 26. The sound absorbing material 36 is stuck and fixed to the inner surface of the upper surface portion 23 by an adhesive.

このように構成することで、刈取作業に伴って発生する音が、上面部２３の内面側で反射することが防止されることに加えて、横側部２４においては、内面にて音が乱反射することにより、オペレータの頭部付近に音が集中することを回避することができる。 In addition to the fact that the sound generated with the reaping work is prevented from being reflected on the inner surface side of the upper surface portion 23 by this configuration, the sound is irregularly reflected on the inner surface of the side portion 24. By doing this, it is possible to avoid the concentration of sound in the vicinity of the operator's head.

〔別実施形態〕
（１）上記実施形態では、横側部２４は閉塞された状態となっていたが、この構成に代えて、図９，１０，１１に示すように、横側部２４に、内外面にわたって貫通する開口４０が複数形成される構成としてもよい。 [Another embodiment]
(1) In the above embodiment, the lateral side 24 is in the closed state, but instead of this configuration, the lateral side 24 penetrates the inner and outer surfaces as shown in FIGS. A plurality of openings 40 may be formed.

横側部２４は断面略波形状の一枚の板状体であって、内方側に向けて突出する複数の凸部３３は板状体の凹凸により形成されている。そして、隣り合う凸部３３同士の間に外方側に向けて突出する状態で凹部３５が形成される点は、上記実施形態と同じである。そして、この実施形態では、凹部３５の底部３５ａと凸部３３の頂部３３ａとの間に開口４０が形成されている。 The lateral side portion 24 is a single plate-like body having a substantially wave-shaped cross section, and the plurality of convex portions 33 projecting inward are formed by the unevenness of the plate-like body. And the point by which the recessed part 35 is formed in the state protruded in the outward side between adjacent convex parts 33 is the same as the said embodiment. And in this embodiment, the opening 40 is formed between the bottom 35 a of the recess 35 and the top 33 a of the projection 33.

開口４０は、上側に位置する凹部３５の底部３５ａと、下側に位置する凸部３３の頂部３３ａとの間に位置して、機体前後方向に沿って延びる凸部３３の延設方向に沿って並ぶ状態で、且つ、適宜間隔をあける状態で複数形成されている。各開口４０は、凸部３３の延設方向に沿って幅広で且つ凸部３３の並び方向に沿って幅狭の前後方向に長い長孔に形成されている。 The opening 40 is located between the bottom 35a of the recess 35 located on the upper side and the top 33a of the protrusion 33 located on the lower side, and extends in the extending direction of the protrusion 33 extending along the longitudinal direction of the machine body. In the state where they are lined up, a plurality is formed in a state where an interval is appropriately opened. Each opening 40 is formed in an elongated hole which is wide in the extending direction of the projections 33 and narrow in the longitudinal direction of the projections 33.

刈取作業に伴って発生する音が開口４０を通して外方に放出させることができる。開口４０は、平面視においては、凹部３５の底部３５ａ、すなわち、外方側へ突出する突出部の頂部によって覆われる状態となるので、雨水が直接に開口４０に降りかかって、キャノピー８の内部に侵入することを回避し易い。 Sound generated with the reaping operation can be emitted outward through the opening 40. The opening 40 is covered by the bottom 35 a of the recess 35, that is, the top of the outward projecting portion in plan view, so that the rainwater falls directly on the opening 40 and the interior of the canopy 8 It is easy to avoid invading

（２）上記実施形態では、複数の凸部３３が上下に並ぶ構成としたが、この構成に代えて、複数の凸部３３が前後方向に並ぶ構成としてもよい。 (2) In the above embodiment, the plurality of convex portions 33 are arranged vertically, but instead of this configuration, the plurality of convex portions 33 may be arranged in the front-rear direction.

（３）上記実施形態では、複数の凸部３３が非直線状に延びる構成としたが、この構成に代えて、複数の凸部３３が直線状に延びる構成としてもよい。凸部３３とし、線状に延びるものに代えて、小径の筒状の突起を多数並べる構成としてもよく、凸部の形状は種々変更することができる。 (3) In the above embodiment, the plurality of projections 33 extend in a non-linear manner, but instead of this configuration, the plurality of projections 33 may extend linearly. Instead of extending in a linear shape, a large number of small diameter cylindrical protrusions may be arranged, and the shape of the protruding portion can be variously changed.

（４）上記実施形態では、横側部２４が、下側に位置するほど機体横幅方向外方側に位置する傾斜姿勢に設けられる構成としたが、この構成に代えて、横側部２４が下方に向けて真っ直ぐに延びる鉛直姿勢に設けられる構成としてもよい。 (4) In the above-described embodiment, the lateral side 24 is provided in the inclined posture positioned on the outer side in the lateral direction of the machine as it is located lower, but instead of this configuration, the lateral side 24 is the lateral side. It may be configured to be provided in a vertical posture extending straight downward.

（５）上記実施形態では、作業機として普通型コンバインに適用したが、作業機としては、自脱型コンバイン、トラクタ、田植機等の種々の作業機に適用することができる。 (5) In the said embodiment, although applied to the common type combine as a working machine, it can be applied to various working machines, such as a self removal type combine, a tractor, and a rice transplanter, as a working machine.

本発明は、運転部の上方を覆うキャノピーを備えている作業機に適用できる。 The present invention can be applied to a work machine provided with a canopy that covers the upper side of the operation unit.

７運転部
８キャノピー
２１ルーフ部
２２支持フレーム
２３上面部
２４横側部
３３凸部
３３ａ頂部
３４運転座席
３５凹部
３５ａ底部
３６吸音材
４０開口 DESCRIPTION OF SYMBOLS 7 driver | operator part 8 canopy 21 roof part 22 support frame 23 upper surface part 24 side part 33 convex part 33a top part 34 driver's seat 35 recessed part 35a bottom part 36 sound absorbing material 40 opening

Claims

A driving unit and a canopy covering the upper side of the driving unit;
The canopy includes a roof portion positioned above the driving portion, and a support frame supporting the roof portion.
The roof portion includes an upper surface portion supported by the support frame, and a lateral side portion extending downward from both end portions of the upper surface portion in the lateral direction of the vehicle body,
A sound absorbing material is provided on the inner surface of the upper surface portion, and a plurality of convex portions projecting inward on the inner surface are provided only on the lateral side.
The work machine according to claim 1, wherein the lateral side portion is formed of a single plate-like body having a substantially wave-shaped cross section, and the plurality of convex portions are formed by unevenness of the plate-like body .

The roof portion is provided from above the front end portion of the driving portion to above the driver seat,
Wherein at a location corresponding to the position of the driver's seat in the vehicle body front-rear direction of the lateral side, the working machine according to claim 1, further comprising the protrusion.

The work machine according to claim 1 or 2 , wherein the convex portion linearly extends in the longitudinal direction of the machine body.

The work machine according to claim 3 , wherein the plurality of convex portions are vertically aligned.

The work machine according to claim 3, wherein the convex portion extends non-linearly.

The work machine according to any one of claims 1 to 5, wherein a plurality of openings penetrating the inner and outer surfaces are formed in the lateral side.

The lateral side is a single plate-like body having a substantially wave-shaped cross section, and the plurality of convex portions are formed by the unevenness of the plate-like body,
A concave portion is formed in a state of projecting outward between the adjacent convex portions,
The work machine according to claim 6 , wherein the opening is formed between a bottom portion of the concave portion positioned on the upper side and a top portion of the convex portion positioned on the lower side.

The work machine according to any one of claims 1 to 7 , wherein the lateral side portion is an inclined posture positioned on the outer side in the lateral direction of the machine body as it is positioned lower.

A driving unit and a canopy covering the upper side of the driving unit;
The canopy includes a roof portion positioned above the driving portion, and a support frame supporting the roof portion.
The roof portion includes an upper surface portion supported by the support frame, and a lateral side portion extending downward from both lateral direction end portions of the upper surface portion in the lateral direction of the vehicle body, and The inner surface is provided with a plurality of projections projecting inward.
A plurality of openings extending through the inner and outer surfaces are formed in the lateral side,
The lateral side portion is a single plate-like body having a substantially wave-shaped cross section, and the plurality of convex portions are formed by the concavities and convexities of the plate-like body, and are directed outward between the adjacent convex portions. A work machine, wherein a recess is formed in a projecting state, and the opening is formed between a bottom of the recess located on the upper side and a top of the protrusion located on the lower side .