JP4463184B2 - Rotary tiller - Google Patents

Rotary tiller Download PDF

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JP4463184B2
JP4463184B2 JP2005321182A JP2005321182A JP4463184B2 JP 4463184 B2 JP4463184 B2 JP 4463184B2 JP 2005321182 A JP2005321182 A JP 2005321182A JP 2005321182 A JP2005321182 A JP 2005321182A JP 4463184 B2 JP4463184 B2 JP 4463184B2
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cover body
plate
frame
upper plate
cover
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JP2007124959A (en
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光喜 平田
一平 山地
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Kubota Corp
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Description

本発明は、ロータリ耕耘部の上方を覆う上部カバー体を有するロータリ耕耘機に関するものである。 The present invention relates to a rotary tiller having a top cover member for covering the upper side of the rotary tilling unit.

従来、ロータリ耕耘機にあっては、ロータリ耕耘部の少なくとも外周側を覆うロータリカバーを備えており、このロータリカバーは、ロータリ耕耘部の上方を覆う上部カバー体と、この上部カバー体の後端側に左右軸廻りに回動自在に枢支連結されていてロータリ耕耘部の後方を覆う後部カバー体とを備えている。
前記カバー体として、板金で形成した本体部の下面側に泥付着防止のためにゴム製の弾性カバーが設けられているものがあるが、本体部を板金によって形成すると、板厚を強度の必要な所の板厚に合わせるために重量が重く動力ロス等の問題が生じる。
Conventionally, a rotary tiller includes a rotary cover that covers at least the outer peripheral side of the rotary tiller. The rotary cover includes an upper cover that covers the upper side of the rotary tiller, and a rear end of the upper cover. And a rear cover body that is pivotally connected to the side so as to be rotatable about the left and right axes and covers the rear of the rotary tillage portion.
Some of the cover bodies are provided with a rubber elastic cover to prevent mud adhesion on the lower surface side of the main body portion formed of sheet metal. However, if the main body portion is formed of sheet metal, the plate thickness needs to be strong. In order to match the thickness of the plate, the weight is heavy and problems such as power loss occur.

そこで、泥付着防止とカバー体の重量軽減とを図ったロータリカバーがある(特許文献1参照)。
このロータリカバーのカバー体にあっては、本体部が、板厚の薄い鋼板からなる左右の縁枠部を備えると共に、板厚の薄い鋼板からなる桟枠部を格子状に組んで左右の縁枠部を連結してなり、弾性カバーは該本体部の下面側に配置されて桟枠部に取り付けられている。
実公昭57−1684号公報
Therefore, there is a rotary cover that prevents mud adhesion and reduces the weight of the cover body (see Patent Document 1).
In the cover body of this rotary cover, the main body portion includes left and right edge frame portions made of thin steel plates, and frame frames made of thin steel plates are assembled in a lattice shape to form left and right edges. The elastic cover is disposed on the lower surface side of the main body and is attached to the crosspiece.
Japanese Utility Model Publication No. 57-1684

前記従来のものにあっては、弾性カバーが格子状に組まれた桟枠部に取り付けられて支持されているので、弾性カバーの取付部分での振動があまりなく、該取付部分で弾性カバーに土付着が多いという問題がある。
そこで、本発明は、前記問題点に鑑みて、軽量化を図ると共に、土付着防止効果を向上させた上部カバー体を有するロータリ耕耘機を提供することを目的とする。
In the above-mentioned conventional one, since the elastic cover is attached to and supported by the frame portion assembled in a lattice shape, there is not much vibration at the attachment portion of the elastic cover, and the attachment portion becomes the elastic cover. There is a problem that there is much soil adhesion.
Accordingly, the present invention, the in view of the problems, there is ensured a weight reduction, and an object thereof is to provide a rotary tiller having a top cover with improved soil adhesion prevention effect.

前記技術的課題を解決するために本発明が講じた技術的手段は、ロータリ耕耘部の上方を覆う上部カバー体を備え、
左右一対の側板の前端側及び後端側を前後の連結枠材で連結して形成されていて左右の側板間及び前後の連結枠材間が開口状とされた矩形状の枠体、この枠体の上面側に、該枠体の開口を塞ぐように設けられた上板前記枠体の下面側に、該枠体の開口を塞ぐように設けられた弾性カバーとから前記上部カバー体を構成し
前記上板をプラスチックの板材又は薄厚の金属板によって形成
前記上板及び弾性カバーを前後の連結枠材で支持し
前記上板の前後方向中途部に、前後の連結部材と前後方向において間隔をあけて形成された取付部を左右方向に間隔をおいて複数設け、
この取付部は、上板自体を下面側に凹ませることにより形成されていると共に前後方向に長く形成され、
この取付部の底壁下面に弾性カバーを重ね合わせると共に該底壁に弾性カバーを前後2箇所で取り付けていることを特徴とする。
The technical means taken by the present invention in order to solve the technical problem includes an upper cover body covering the upper part of the rotary tillage part ,
A rectangular frame body between between the front end and the rear end side of the pair of left and right side plates have been formed by connecting before and after the connecting frame member left and right side plates and front and rear connecting frame member is an opening shape, this on the upper surface of the frame, an upper plate which is provided so as to close the opening of the frame body, the lower surface of the frame body, the upper cover and an elastic cover provided so as to close the opening of said frame member Make up the body ,
The upper plate is formed by a plate material or thin metal plate plastic,
Support the upper plate and the elastic cover with front and rear connecting frame members ,
A plurality of attachment portions formed at intervals in the front-rear direction and the front-rear connecting members are provided in the front-rear direction midway portion of the upper plate at intervals in the left-right direction,
This attachment part is formed by denting the upper plate itself to the lower surface side and is formed long in the front-rear direction,
An elastic cover is overlaid on the bottom wall lower surface of the mounting portion, and the elastic cover is mounted on the bottom wall at two locations in the front and rear .

また、ロータリ耕耘部の後方を覆う後部カバー体を備え、
左右一対の側板の前端側及び後端側を前後の連結枠材で連結して形成されていて左右の側板間及び前後の連結枠材間が開口状とされた矩形状の枠体と、この枠体の上面側に、該枠体の開口を塞ぐように設けられた上板と、前記枠体の下面側に、該枠体の開口を塞ぐように設けられた弾性カバーとから前記後部カバー体を構成し、
この後部カバー体において、上板は前後の連結枠材で支持されると共に、弾性カバーは前側の連結枠材と上板とで支持され、且つ前記後側の連結枠材の下面が圃場に接地する整地面とされているのがよい。
In addition, a rear cover body that covers the rear of the rotary tillage part is provided,
A rectangular frame body formed by connecting the front end side and the rear end side of the pair of left and right side plates with front and rear connection frame members, and between the left and right side plates and between the front and rear connection frame members, The rear cover includes an upper plate provided on the upper surface side of the frame body so as to close the opening of the frame body, and an elastic cover provided on the lower surface side of the frame body so as to close the opening of the frame body. Make up the body,
In this rear cover body, the upper plate is supported by the front and rear connecting frame members, the elastic cover is supported by the front connecting frame member and the upper plate, and the lower surface of the rear connecting frame member is grounded to the field. It should be a leveling ground .

本発明によれば、左右一対の側板の前端側及び後端側を連結枠材で連結して構成された矩形状の枠体の上面側に、該枠体の開口を塞ぐように上板を設け、この上板をプラスチックの板材又は薄厚の金属板によって形成したので、カバー体の重量軽減を図ることができると共に、前記枠体の下面側に該枠体の開口を塞ぐように設けられた弾性カバーを、少なくとも前後一方の連結枠材と上板とによって支持したので、弾性カバーの上板に取り付けられた部分が振動することにより、該弾性カバーの上板への取付部分における土付着防止効果が大きい。   According to the present invention, the upper plate is attached to the upper surface side of the rectangular frame formed by connecting the front end side and the rear end side of the pair of left and right side plates with the connecting frame member so as to close the opening of the frame body. Since the upper plate is formed of a plastic plate material or a thin metal plate, the weight of the cover body can be reduced and the lower surface side of the frame body is provided so as to close the opening of the frame body. Since the elastic cover is supported by at least one of the front and rear connecting frame members and the upper plate, the portion attached to the upper plate of the elastic cover vibrates to prevent soil adhesion at the mounting portion of the elastic cover to the upper plate. Great effect.

以下、本発明の実施の形態を図面を参照して説明する。
図1において、1はロータリ耕耘機の機枠であり、2はこの機枠1の下部に設けられたロータリ耕耘部であり、3はこのロータリ耕耘部2の少なくとも外周側を覆うロータリカバーである。
機枠1は、図1及び図2に示すように、サイドドライブ式のロータリ耕耘機の機枠1であり、左右方向中央部のギヤケース4から左右両側にサポートアーム5を延出すると共に、左右各サポートアーム5の左右方向外端側に、該サポートアーム5から下方に延出状としてサイドフレーム6,7を設けてなる背面視門型状に形成されている。
Hereinafter, embodiments of the present invention will be described with reference to the drawings.
In FIG. 1, 1 is a machine frame of a rotary tiller, 2 is a rotary tiller part provided in the lower part of this machine frame 1, and 3 is a rotary cover which covers at least the outer peripheral side of this rotary tiller part 2. .
As shown in FIGS. 1 and 2, the machine frame 1 is a machine frame 1 of a side drive type rotary tiller, and extends support arms 5 from the gear case 4 at the center in the left-right direction to the left and right sides, Each support arm 5 is formed in a rear portal shape in which side frames 6 and 7 are provided extending downward from the support arm 5 on the outer end side in the left-right direction.

前記サイドフレーム6,7は、板材から形成されていて板厚方向を左右方向としてロータリ耕耘部2の側方に配置されており、ロータリ耕耘部2の上部側の側方を覆っている。
また、左側サイドフレーム6の左右方向外面側には伝動ケースが設けられる。
ロータリ耕耘部2は、左右のサイドフレーム6,7の下部間に左右軸回りに回転自在に支架された爪軸8上に多数の耕耘爪9を取り付けてなる。
The side frames 6 and 7 are formed of a plate material, are disposed on the side of the rotary tiller 2 with the plate thickness direction as the left-right direction, and cover the upper side of the rotary tiller 2.
Further, a transmission case is provided on the left and right outer surfaces of the left side frame 6.
The rotary tiller 2 is configured by attaching a number of tilling claws 9 on a claw shaft 8 that is rotatably supported around the left and right axes between the lower portions of the left and right side frames 6 and 7.

ギヤケース4には、ロータリ耕耘機をトラクタに装着した際に、トラクタのPIC軸にジョイント軸を介して連動連結されるPIC軸が設けられ、該PIC軸を介してギヤケース4内の伝動機構に入力された動力は左側サポートアーム5内の伝動軸及び前記伝動ケース内の伝動機構を介して爪軸8に伝達されて耕耘爪9が矢示A方向に回転駆動される。
ロータリカバー3は、図1〜図12に示すように、ギヤケース4及び左右サポートアーム5の下方側に配置されていてロータリ耕耘部2の上方を覆うカバー体11(これを上部カバー体という)と、この上部カバー体11の後端側に左右方向の軸心廻りに回動自在に取り付けられていてロータリ耕耘部2の後方を覆うカバー体12(これを後部カバー体という)と、ロータリ耕耘部2の左右の側方を覆う左右一対のカバー体13(これを側部カバー体という)とを備えてなる。
The gear case 4 is provided with a PIC shaft that is linked to the PIC shaft of the tractor via a joint shaft when the rotary tiller is mounted on the tractor, and is input to the transmission mechanism in the gear case 4 via the PIC shaft. The power thus transmitted is transmitted to the claw shaft 8 through the transmission shaft in the left support arm 5 and the transmission mechanism in the transmission case, and the tilling claw 9 is rotationally driven in the direction of arrow A.
As shown in FIGS. 1 to 12, the rotary cover 3 is disposed on the lower side of the gear case 4 and the left and right support arms 5 and covers the upper side of the rotary tiller 2 (this is called an upper cover body). A cover body 12 (this is referred to as a rear cover body) which is attached to the rear end side of the upper cover body 11 so as to be rotatable around a horizontal axis and which covers the rear of the rotary tiller 2; 2 and a pair of left and right cover bodies 13 (referred to as side cover bodies) covering the left and right sides.

上部カバー体11及び後部カバー体12は、枠体14,15と、この枠体14,15の上面側に設けられた上板16,17と、枠体14,15の下面側に設けられた弾性カバー18,19とから主構成され、左右の各側部カバー体13は、機枠1のサイドフレーム6,7と、該サイドフレーム6,7の後方に配置されたリヤサイドカバー板20とから主構成されている。   The upper cover body 11 and the rear cover body 12 are provided on the frame bodies 14 and 15, the upper plates 16 and 17 provided on the upper surface side of the frame bodies 14 and 15, and the lower surface side of the frame bodies 14 and 15. The left and right side cover bodies 13 are mainly composed of elastic covers 18 and 19, and left and right side cover bodies 13 are composed of side frames 6 and 7 of the machine frame 1 and a rear side cover plate 20 disposed behind the side frames 6 and 7. The main composition is.

上部カバー体11及び後部カバー体12の枠体14,15は、板材から形成されていて板厚方向が左右方向とされ且つ前後に長い左右の側板14A,15Aと、この左右の側板14A,15Aの前部同士を連結する前側の連結枠材14B,15Bと、左右の側板14A,15Aの後部同士を連結する後側の連結枠材14C,15Cとから、左右側板14A,15A間(前後の連結枠材14B,14C,15B,15C間)が開口状とされた矩形枠状に形成されている。   The frame bodies 14 and 15 of the upper cover body 11 and the rear cover body 12 are formed of a plate material, the plate thickness direction is the left-right direction, and the left and right side plates 14A and 15A that are long in the front and rear, and the left and right side plates 14A and 15A. From the front connection frame members 14B and 15B for connecting the front portions of the left and right side plates 14A and 15C and the rear connection frame members 14C and 15C for connecting the rear portions of the left and right side plates 14A and 15A, The connecting frame members 14B, 14C, 15B, 15C) are formed in a rectangular frame shape having an opening shape.

先ず、上部カバー体11の枠体14について説明する。
上部カバー体11の側板14Aは、サイドフレーム6,7上部の前端側から後端側にわたって設けられていると共に後端側がサイドフレーム6,7から後方に突出しており、且つ左右各側板14Aは左右方向で同じ側にあるサイドフレーム6,7の左右方向内方側に配置されてサイドフレーム6,7にボルト等によって固定されている。
First, the frame body 14 of the upper cover body 11 will be described.
The side plate 14A of the upper cover body 11 is provided from the front end side to the rear end side of the upper portions of the side frames 6 and 7, the rear end side projects rearward from the side frames 6 and 7, and the left and right side plates 14A are left and right. It arrange | positions at the left-right direction inner side of the side frames 6 and 7 which are the same side in a direction, and is being fixed to the side frames 6 and 7 with the volt | bolt etc.

上部カバー体11の前後の連結枠材14B,14Cは、左右方向に長い帯板状のプレート21F,21Rと、このプレート21F,21Rの上面に固着された横長の横枠材22F,22Rとから主構成され、横枠材22F,22Rは上壁23と、この上壁23の前後端から下方側に延びる前後壁24,25と、前後壁24,25の下端から前後方向内方(対向内方)に延びる前後一対の下壁26とから側面視で下側が開放状とされたC字状に形成されている。   The front and rear connecting frame members 14B and 14C of the upper cover body 11 are composed of strip-like plates 21F and 21R that are long in the left-right direction, and horizontally long horizontal frame members 22F and 22R fixed to the upper surfaces of the plates 21F and 21R. The horizontal frame members 22F and 22R are mainly composed of an upper wall 23, front and rear walls 24 and 25 extending downward from the front and rear ends of the upper wall 23, and front and rear inner sides (opposite inner sides) from the lower ends of the front and rear walls 24 and 25. And a pair of front and rear lower walls 26 extending in the direction of C).

前側の連結枠材14Bの横枠材22Fはその下壁26がプレート21Fの後部に固着され、後側の連結枠材14Cの横枠材22Rはその下壁26がプレート21Rの前部に固着されており(前側の連結枠材14Bのプレート21Fは横枠材22Fから前方に延出状に設けられ、後側の連結枠材14Cのプレート21Rは横枠材22Rから後方に延出状に設けられており)、前側の連結枠材14Bは前下がり状に配置され、後側の連結枠材14Cは後下がり状に配置されている。   The lower frame 26 of the horizontal frame member 22F of the front connection frame member 14B is fixed to the rear portion of the plate 21F, and the lower frame 26 of the horizontal frame member 22R of the rear connection frame member 14C is fixed to the front portion of the plate 21R. (The plate 21F of the front connecting frame member 14B extends forward from the horizontal frame member 22F, and the plate 21R of the rear connecting frame member 14C extends rearward from the horizontal frame member 22R. The front connecting frame member 14B is disposed in a front-lowering manner, and the rear connecting frame member 14C is disposed in a rear-lowering manner.

前記横枠材22F,22R及びプレート21F,21Rは左右側板14A間にわたって設けられていて、左右両端が側板14Aに溶接等によって固定されている。
上部カバー体11の、前側の連結枠材14Bのプレート21Fの前部下面、及び、後側の連結枠材14Cのプレート21Rの後部下面には、取付部材27が溶接等によって固定されており、この取付部材27は左右方向に間隔をおいて複数箇所(本実施の形態では10カ所)設けられていて、該取付部材27に弾性カバー18が取り付けられて支持されている。
The horizontal frame members 22F, 22R and the plates 21F, 21R are provided between the left and right side plates 14A, and both left and right ends are fixed to the side plate 14A by welding or the like.
An attachment member 27 is fixed to the front lower surface of the plate 21F of the front connecting frame member 14B and the rear lower surface of the plate 21R of the rear connecting frame member 14C of the upper cover body 11 by welding or the like. The attachment member 27 is provided at a plurality of locations (10 locations in the present embodiment) at intervals in the left-right direction, and the elastic cover 18 is attached to and supported by the attachment member 27.

各取付部材27は、図7に示すように、左右方向で対向状に配置された左右の側壁27aと、左右各側壁27aの上端から左右方向外方に延出された上壁27bと、左右の側壁27aの下端同士を連結する下壁27cとから主構成され、左右の上壁27bが前記プレート21F,21Rに溶接等によって固定されている。
また、上部カバー体11の左右の各側板14Aの外側面の後端側には後部カバー体12を枢支するためのボス28が固着されている。
As shown in FIG. 7, each mounting member 27 includes left and right side walls 27 a that are arranged opposite to each other in the left-right direction, an upper wall 27 b that extends outward in the left-right direction from the upper ends of the left and right side walls 27 a, And the lower wall 27c that connects the lower ends of the side walls 27a, and the left and right upper walls 27b are fixed to the plates 21F and 21R by welding or the like.
A boss 28 for pivotally supporting the rear cover body 12 is fixed to the rear end side of the outer surface of each of the left and right side plates 14A of the upper cover body 11.

次に、後部カバー体12の枠体15について説明する。
後部カバー体12の左右の側板15Aは、左右方向で同じ側にある上部カバー体11の側板14Aの後方側に配置されている。
後部カバー体12の前後の連結枠材15B,15Cは左右方向に長い帯板材によって構成され、左右両側が側板15Aに溶接等によって固定されている。
Next, the frame body 15 of the rear cover body 12 will be described.
The left and right side plates 15A of the rear cover body 12 are disposed on the rear side of the side plate 14A of the upper cover body 11 on the same side in the left-right direction.
The connecting frame members 15B and 15C on the front and rear sides of the rear cover body 12 are formed of strip plates that are long in the left-right direction, and both left and right sides are fixed to the side plate 15A by welding or the like.

前側の連結枠材15Bの前部は側板15Aから前方に突出していると共に、前端側が下側に向けて折曲され、この折曲部分29の前側に左右方向の軸心を有するパイプ材からなる左右一対の支軸31が固着され、この左右支軸31の左右方向外端側が上部カバー体11のボス28に左右方向の軸心回りに回動自在に支持されている。
左右の支軸31は後部カバー体12の左右方向中央側で左右方向に間隔をおいて設けられ、この左右の支軸31間に接続部材32が配置されており、この接続部材32は支軸31と同心状に配置された筒状の本体部32aを有し、この筒状の本体部32aと左右の支軸31とにわたって枢軸33が挿通されている。
The front portion of the front connecting frame member 15B protrudes forward from the side plate 15A, and the front end side is bent downward, and is formed of a pipe member having a left-right axial center on the front side of the bent portion 29. A pair of left and right support shafts 31 are fixed, and the left and right outer end sides of the left and right support shafts 31 are supported by the bosses 28 of the upper cover body 11 so as to be rotatable about the left and right axis.
The left and right support shafts 31 are provided at the center in the left-right direction of the rear cover body 12 at intervals in the left-right direction. A connection member 32 is disposed between the left and right support shafts 31, and the connection member 32 is a support shaft. 31 has a cylindrical main body 32 a concentrically arranged with the shaft 31, and a pivot 33 is inserted between the cylindrical main body 32 a and the left and right support shafts 31.

また、接続部材32には本体部から前方側に延びる取付壁32bが設けられ、該取付壁32bは上部カバー体11の後側の連結枠材14Cのプレート21Rの後部上面に上板16を介して重ね合わされてボルト固定されており、これによって、上部カバー体11の左右方向中央部においても後部カバー体12が左右方向の軸心回りに回動自在に支持されている。   The connecting member 32 is provided with a mounting wall 32b extending forward from the main body, and the mounting wall 32b is disposed on the upper surface of the rear portion of the plate 21R of the connecting frame member 14C on the rear side of the upper cover body 11 via the upper plate 16. In this way, the rear cover body 12 is supported so as to be rotatable around the axis in the left-right direction even at the center in the left-right direction of the upper cover body 11.

また、後部カバー体12の前側の連結枠材15Bの下面の前後方向中途部には、前述した図7に示す取付部材27と同様の取付部材27が左右方向に間隔をおいて複数個(本実施の形態では10個)設けられている。
後側の連結部材15Cは、前後中途部において下方に向けて折曲され、この後側の連結部材15Cの後部側下面が圃場に接地して整地する整地面34とされている。
In addition, a plurality of attachment members 27 similar to the attachment member 27 shown in FIG. 7 described above are provided in the middle in the front-rear direction of the lower surface of the connecting frame member 15B on the front side of the rear cover body 12 with a space in the left-right direction. 10 in the embodiment).
The rear connecting member 15C is bent downward in the middle of the front and rear, and the rear side lower surface of the rear connecting member 15C is grounded on the ground to level the ground.

また、この後側の連結部材15Cの後端側は、前方側に向けて折り返されていて側面視コ字形に形成されている。
上部カバー体11及び後部カバー体12の上板16,17は、繊維強化プラスチック(FRP、FRTP)等のプラスチックからなる板材、又は薄厚の(板厚の薄い)金属板(薄厚鉄板等)等の可撓性、弾性を有する軽量の板材によって構成されていて、前記枠体14,15の開口を塞ぐように設けられている。
Further, the rear end side of the rear side connecting member 15C is folded back toward the front side and is formed in a U shape in a side view.
The upper plates 16 and 17 of the upper cover body 11 and the rear cover body 12 are made of a plate material made of plastic such as fiber reinforced plastic (FRP, FRTP), or a thin (thin plate thickness) metal plate (thin iron plate) or the like. It is made of a lightweight plate material having flexibility and elasticity, and is provided so as to close the openings of the frame bodies 14 and 15.

上部カバー体11及び後部カバー体12の上板16,17の前後方向中途部には、該上板16,17自体を下面側に向けて突出するように凹ませることによって形成された取付部35が形成されており、この取付部35は、上板16,17の上面側からみて前後に長い長円状の溝状であり、上板16,17の下面側からみて前後に長い長円状の突部に形成されており、左右方向に間隔をおいて複数箇所(本実施の形態では、10箇所)設けられ、この取付部35に弾性カバー18,19が取り付けられて支持されている。   Attaching portion 35 formed by recessing the upper plates 16 and 17 themselves so as to protrude toward the lower surface side in the longitudinal direction of the upper plates 16 and 17 of the upper cover body 11 and the rear cover body 12. The mounting portion 35 has an elliptical groove shape that is long in the front-rear direction when viewed from the upper surface side of the upper plates 16, 17, and is elliptical shape that is long in the front-rear direction when viewed from the lower surface side of the upper plates 16, 17 A plurality of locations (10 locations in the present embodiment) are provided at intervals in the left-right direction, and elastic covers 18 and 19 are attached to and supported by the attachment portion 35.

上部カバー体11の上板16は、該上部カバー体11の左右側板14A間にわたって且つ前側連結枠材14Bの前端側から後側連結枠材14Cの後端側にわたって設けられており、前後の連結枠材14B,14Cの横枠材22F,22R上面に重合すると共に、前側連結枠材14Bのプレート21Fの前部上面及び後側連結枠材14Cのプレート21Rの後部上面に重合するように折曲されている。   The upper plate 16 of the upper cover body 11 is provided between the left and right side plates 14A of the upper cover body 11 and from the front end side of the front connection frame member 14B to the rear end side of the rear connection frame member 14C. The frame members 14B and 14C are superposed on the upper surfaces of the horizontal frame members 22F and 22R, and are bent so as to be superposed on the front upper surface of the plate 21F of the front connection frame member 14B and the rear upper surface of the plate 21R of the rear connection frame member 14C. Has been.

この上部カバー体11の上板16は、前端側が前側の連結枠材14Bのプレート21F前部に、後端側が後側の連結枠材14Cのプレート21R後部に左右方向複数箇所において取付固定されており、具体的には、該上板16及びプレート21F,21Rを上方から貫通し且つ該プレート21F,21Rの下面に固着されたナット36に螺合されるボルト37によって取付固定されている。   The upper plate 16 of the upper cover body 11 is attached and fixed at a plurality of positions in the left-right direction at the front end of the front side of the plate 21F of the connecting frame member 14B and at the rear end side of the plate 21R of the connecting frame member 14C of the rear side. Specifically, the upper plate 16 and the plates 21F and 21R are attached and fixed by bolts 37 that are screwed into nuts 36 that pass through the upper plate 16 and the plates 21F and 21R from above and are fixed to the lower surfaces of the plates 21F and 21R.

後部カバー体12の上板17は、該後部カバー体12の左右側板15A間にわたって且つ支軸31の前端側から後側の連結枠材15Cの後端側にわたって設けられている。
この後部カバー体12の上板17の前部側は、前側連結枠材15Bの前部及び後部に左右方向複数箇所において取付固定されており、この上板17の取付用のボルト38は、上板17及び前側連結枠材15Bを上方から貫通し且つ前側連結枠材15Bの下面に固着されたナット39に螺合されている。
The upper plate 17 of the rear cover body 12 is provided across the left and right side plates 15A of the rear cover body 12 and from the front end side of the support shaft 31 to the rear end side of the connecting frame member 15C on the rear side.
The front side of the upper plate 17 of the rear cover body 12 is fixedly attached to the front and rear portions of the front side connecting frame member 15B at a plurality of positions in the left-right direction. The plate 17 and the front connection frame member 15B are penetrated from above and screwed to a nut 39 fixed to the lower surface of the front connection frame member 15B.

また、後部カバー体12の上板17の後部側は、後側連結枠材15Cの前部側に左右方向複数箇所において取付固定されており、具体的には、該上板17及び後側連結枠材15Cを下方から貫通するトラス頭部を有するボルト40と、該ボルト40に螺合されるナット41とによって締結固定されており、また、後部カバー体12の上板17の後端側は、後側の連結枠材15Cの後端側の折返し部分42に挿入されている。   In addition, the rear side of the upper plate 17 of the rear cover body 12 is fixedly attached to the front side of the rear connection frame member 15C at a plurality of positions in the left-right direction. Specifically, the upper plate 17 and the rear side connection It is fastened and fixed by a bolt 40 having a truss head that penetrates the frame member 15C from below and a nut 41 screwed to the bolt 40, and the rear end side of the upper plate 17 of the rear cover body 12 is The rear connecting frame member 15C is inserted into the folded portion 42 on the rear end side.

上部カバー体11及び後部カバー体12の弾性カバー18,19は、ゴム板等の弾性板材によって形成され、本実施の形態では、上部カバー体11の弾性カバー18と後部カバー体12の弾性カバー19とは一枚の弾性板材によって一体形成されており、この一枚の弾性板材によって形成された弾性カバー18,19は、上部カバー体11及び後部カバー体12の左右側板14A,15A間にわたる幅で且つ上部カバー体11の前側の連結枠材14Bの前端側から後部カバー体12の後側の連結枠材15Cの前端側に至る長さに形成されていて、上部カバー体11及び後部カバー体12の枠体14,15の開口を塞ぐように配置されている。   The elastic covers 18 and 19 of the upper cover body 11 and the rear cover body 12 are formed of an elastic plate material such as a rubber plate. In this embodiment, the elastic cover 18 of the upper cover body 11 and the elastic cover 19 of the rear cover body 12 are used. Are integrally formed by a single elastic plate material, and the elastic covers 18 and 19 formed by this single elastic plate material have a width extending between the left and right side plates 14A and 15A of the upper cover body 11 and the rear cover body 12. Further, the upper cover body 11 and the rear cover body 12 are formed to have a length extending from the front end side of the connecting frame member 14B on the front side of the upper cover body 11 to the front end side of the connecting frame member 15C on the rear side of the rear cover body 12. It arrange | positions so that the opening of the frame bodies 14 and 15 may be plugged up.

また、弾性カバー18,19は、枠体14,15の各取付部材27の下壁27c下面及び上板16,17の取付部35の底壁35a下面に重合され該取付部材27及び取付部35にボルト43・ナット44及び座金45によって取付固定されている。
具体的には、取付部材27に対する取付部分にあっては、座金45は、中央部が弾性カバー18,19に形成された挿通孔46を介して取付部材27の下壁27c下面に接当し且つ外周部が弾性カバー18,19の下面に接当し、ボルト43は座金45の中央部及び取付部材27の下壁27cを貫通して、取付部材27の下壁27cの上面に固着されたナット44に螺合している。
The elastic covers 18, 19 are superposed on the lower surface of the lower wall 27 c of each attachment member 27 of the frame bodies 14, 15 and the lower surface of the bottom wall 35 a of the attachment portion 35 of the upper plates 16, 17. Are fixed by bolts 43, nuts 44 and washers 45.
Specifically, in the attachment portion with respect to the attachment member 27, the washer 45 contacts the lower surface of the lower wall 27 c of the attachment member 27 through the insertion hole 46 formed in the elastic cover 18, 19 at the center. In addition, the outer peripheral portion is in contact with the lower surfaces of the elastic covers 18 and 19, and the bolt 43 passes through the central portion of the washer 45 and the lower wall 27 c of the mounting member 27 and is fixed to the upper surface of the lower wall 27 c of the mounting member 27. Screwed into the nut 44.

また、上板16,17の取付部35に対する取付部分にあっては、座金45は、中央部が弾性カバー18,19に形成された挿通孔46を介して取付部35の底壁35a下面に接当し且つ外周部が弾性カバー18,19の下面に接当し、ボルト43は座金45の中央部及び取付部35の底壁35aを貫通して、取付部35の底壁35a上面側に配置されたナット44に螺合しており、ボルト43・ナット及び座金45は1つの取付部35に対して前後一対設けられている。   Moreover, in the attachment part with respect to the attachment part 35 of the upper plates 16 and 17, the washer 45 is formed on the lower surface of the bottom wall 35a of the attachment part 35 through the insertion hole 46 formed in the elastic covers 18 and 19 at the center part. The outer periphery touches the lower surface of the elastic covers 18, 19, and the bolt 43 passes through the central portion of the washer 45 and the bottom wall 35 a of the mounting portion 35, and on the upper surface side of the bottom wall 35 a of the mounting portion 35. The bolts 43, nuts, and washers 45 are screwed into the arranged nuts 44, and a pair of front and rear is provided with respect to one mounting portion 35.

前記取付部材27はプレート21F,21Rから下方に突出状とされ、取付部35は上板16,17のその他の部分(本体部分の下面)から下方に突出状とされているので、上板16,17と弾性カバー18,19との間に空間が形成されている。
また、前記各取付部35の上面側には、上面側の開口を塞ぐ蓋部材48が設けられ、この蓋部材48の下面側には、ナット44に嵌合することで蓋部材48を保持する筒状の嵌合部49が形成されている。
The mounting member 27 protrudes downward from the plates 21F and 21R, and the mounting portion 35 protrudes downward from the other parts of the upper plates 16 and 17 (the lower surface of the main body portion). , 17 and the elastic covers 18, 19 are formed with spaces.
Further, a lid member 48 that closes the opening on the upper surface side is provided on the upper surface side of each mounting portion 35, and the lid member 48 is held on the lower surface side of the lid member 48 by fitting with a nut 44. A cylindrical fitting portion 49 is formed.

また、上部カバー体11の上面側の左右方向中央側には、枠体14の前後の連結枠材14B,14Cを連結するステー50が左右一対設けられている。
このステー50は、板材から構成され、前後部分が横枠材22F,22Rの上壁23に上板16を挟んで重ね合わされ、ステー50,上板16及び横枠材上壁23を貫通して、横枠材22F,22Rの上壁23下面に固着されたナット51に螺合するボルト52によって前後の横枠材22F,22Rに取付固定されている。
A pair of left and right stays 50 for connecting the connecting frame members 14 </ b> B and 14 </ b> C before and after the frame body 14 are provided on the center side in the left-right direction on the upper surface side of the upper cover body 11.
The stay 50 is made of a plate material, and the front and rear portions are overlapped with the upper wall 23 of the horizontal frame members 22F and 22R with the upper plate 16 interposed therebetween, and penetrates the stay 50, the upper plate 16 and the horizontal frame material upper wall 23. The frame members 22F and 22R are attached and fixed to the front and rear frame members 22F and 22R by bolts 52 that are screwed into nuts 51 fixed to the lower surface of the upper wall 23 of the frame members 22F and 22R.

また、このステー50の上面側の前後方向中途部には取付板53が固着され、この取付板53はサポートアーム5に固着されたブラケット板54にボルト固定されている。
また、後部カバー体12の上面側の左右方向中央側には、枠体15の前後の連結枠材15B,15Cを連結するブラケット55が左右一対設けられている。
このブラケット55は、左右の側壁部56と、左右の側壁56を連結する連結壁部57と、左右側壁部56の下端側に固着された前後一対の取付プレート58とを備え、連結壁部57は側壁部56から前後に突出しており、側壁部56から前方に突出する連結壁部57の前側部分は上板17上に重ね合わされて前側連結枠材15B,上板17及び連結壁部57を上方側から貫通するボルト38及び該ボルト38に螺合されるナット39によって取付固定され、側壁部56から後方に突出する連結壁部57の後側部分は上板17上に重ね合わされて後側連結枠材15C,上板17及び連結壁部57を下方側から貫通するボルト59及び該ボルト59に螺合されるナット60によって取付固定されている。
Further, a mounting plate 53 is fixed to the middle portion of the stay 50 in the front-rear direction, and the mounting plate 53 is fixed to a bracket plate 54 fixed to the support arm 5 with bolts.
A pair of left and right brackets 55 for connecting the connecting frame members 15B and 15C before and after the frame body 15 are provided on the center side in the left-right direction on the upper surface side of the rear cover body 12.
The bracket 55 includes left and right side wall portions 56, a connecting wall portion 57 that connects the left and right side wall portions 56, and a pair of front and rear mounting plates 58 that are fixed to the lower end sides of the left and right side wall portions 56. Protrudes forward and backward from the side wall portion 56, and the front side portion of the connecting wall portion 57 protruding forward from the side wall portion 56 is superimposed on the upper plate 17 to connect the front side connecting frame member 15B, the upper plate 17 and the connecting wall portion 57. The rear portion of the connecting wall portion 57 that is attached and fixed by the bolt 38 penetrating from the upper side and the nut 39 that is screwed to the bolt 38 and that protrudes rearward from the side wall portion 56 is superimposed on the upper plate 17. The connecting frame member 15 </ b> C, the upper plate 17, and the connecting wall portion 57 are attached and fixed by bolts 59 penetrating from the lower side and nuts 60 screwed into the bolts 59.

前側の取付プレート58は前側連結枠材15Bの後部に上板17を介して重ね合わされていると共に、左右の側壁部56から左右方向外方に延出されており、この側壁部56から延出する取付プレート58の延出部分は、取付プレート58,上板17及び前側連結枠材15Bを上方側から貫通するボルト38及び該ボルト38に螺合されるナット39によって取付固定されており、また、後側の取付プレート58は後側連結枠材15Cの前部に上板17を介して重ね合わされていると共に、左右の側壁部56から左右方向外方に延出されており、この側壁部56から延出する取付プレート58の延出部分は後側連結枠材15C,上板17及び取付プレート58を下方側から貫通するボルト40及び該ボルト40に螺合されるナット41によって取付固定されている。   The front mounting plate 58 is superimposed on the rear portion of the front connecting frame member 15B via the upper plate 17, and extends outward in the left-right direction from the left and right side wall portions 56, and extends from the side wall portion 56. The extending portion of the mounting plate 58 is fixed by a bolt 38 passing through the mounting plate 58, the upper plate 17 and the front connection frame member 15B from above and a nut 39 screwed to the bolt 38. The rear mounting plate 58 is overlapped with the front portion of the rear connecting frame member 15C via the upper plate 17, and extends outward from the left and right side wall portions 56 in the left and right direction. The extending portion of the mounting plate 58 extending from 56 is formed by a bolt 40 passing through the rear connecting frame member 15C, the upper plate 17 and the mounting plate 58 from the lower side and a nut 41 screwed to the bolt 40. It is attached and fixed.

また、このブラケット55の左右の側壁部56の前部側は上方に向けて延出されており、この延出部分63とサポートアーム5に固着されたブラケット64とにわたって、耕耘時において土からの反力による後部カバー体12の浮き上がりを弾性的に抑える図示省略の弾下装置が設けられる。
また、前記弾下装置は、図1に示す上方に持ち上げた位置(又はこれよりも高い位置)に後部カバー体12を保持することができる。
Further, the front side of the left and right side wall portions 56 of the bracket 55 extends upward, and extends over the extended portion 63 and the bracket 64 fixed to the support arm 5 from the soil at the time of tillage. An unillustrated lowering device that elastically suppresses lifting of the rear cover body 12 due to the reaction force is provided.
In addition, the above-described demunition device can hold the rear cover body 12 at a position lifted upward (or a position higher than this position) shown in FIG.

耕耘時にあっては、後部カバー体12の後側連結枠材15Cの下面後部側(整地面34)が接地すると共に、前記弾下装置によって後部カバー体12が抑えられ、耕耘爪9によって耕起されて後方及び上方に放てきされた土は弾性カバー18,19に衝当して砕土される。
このとき弾性カバー18,19が振動することにより、ロータリカバー3内面側への土付着が防止され、弾性カバー18,19の上板16,17への取付部分にあっても、上板16,17が振動することにより弾性カバー18,19への土付着が好適に防止される。
At the time of plowing, the lower surface rear side (leveling ground 34) of the rear connection frame member 15 </ b> C of the rear cover body 12 is grounded, and the rear cover body 12 is suppressed by the abutment device and is plowed by the tilling claws 9. Then, the soil released backward and upward hits the elastic covers 18 and 19 and is crushed.
At this time, the elastic covers 18 and 19 vibrate to prevent soil from adhering to the inner surface of the rotary cover 3, and even if the elastic covers 18 and 19 are attached to the upper plates 16 and 17, By vibrating 17, soil adhesion to the elastic covers 18 and 19 is preferably prevented.

前記構成のロータリカバー3にあっては、上部カバー体11及び/又は後部カバー体12を、矩形状の枠体14,15と、この枠体14,15の上面側に設けられる上板16,17と、枠体14,15の下面側に設けられる弾性カバー18,19とによって主構成しており、強度のいる部分を矩形状の枠体14,15とし、比較的強度の必要としない上板16,17をプラスチック又は薄厚の金属板によって構成することにより、ロータリカバー3の軽量化が図れると共に、上板16,17が振動することにより、弾性カバー18,19の上板16,17への取付部分においての土付着防止も良好に行える。   In the rotary cover 3 having the above-described configuration, the upper cover body 11 and / or the rear cover body 12 are divided into rectangular frame bodies 14 and 15 and an upper plate 16 provided on the upper surface side of the frame bodies 14 and 15. 17 and elastic covers 18 and 19 provided on the lower surface side of the frame bodies 14 and 15, and the strong portions are rectangular frame bodies 14 and 15 that do not require relatively high strength. By configuring the plates 16 and 17 with plastic or a thin metal plate, the rotary cover 3 can be reduced in weight, and when the upper plates 16 and 17 vibrate, the upper plates 16 and 17 of the elastic covers 18 and 19 are moved to. It is possible to satisfactorily prevent soil adhesion at the mounting portion.

また、本実施形態の後部カバー体12にあっては、軽量化が図られているが、後部カバー体12を軽量化すると、その軽くなった分、耕耘時において、後部カバー体12の重量による該後部カバー体12の浮き上がり規制効果がおちることとなる。
そこで、図13に示すように、この軽量化した後部カバー体12に、該後部カバー体12を下方側に付勢するバネ部材66を設けるのがよい。
Further, in the rear cover body 12 of the present embodiment, the weight is reduced. However, if the weight of the rear cover body 12 is reduced, the weight of the rear cover body 12 depends on the weight of the rear cover body 12 during plowing. The lifting restriction effect of the rear cover body 12 is reduced.
Therefore, as shown in FIG. 13, it is preferable to provide a spring member 66 for urging the rear cover body 12 downward on the weight-reduced rear cover body 12.

バネ部材66は、左右一対設けられていて左右のブラケット55の取付位置にそれぞれ配置されていると共に、左右のブラケット55の側壁部56間の寸法の幅の帯板状の板バネによって構成され、一端側(前端側)が、上部カバー体11の後側連結枠材14Cの後端側に取付固定された支持部材67に枢軸68を介して左右方向の軸心回りに回動自在に枢支連結されている。   The spring members 66 are provided as a pair of left and right and are respectively disposed at the mounting positions of the left and right brackets 55, and are constituted by strip-like plate springs having a width between the side wall portions 56 of the left and right brackets 55, One end side (front end side) is pivotally supported by a support member 67 attached and fixed to the rear end side of the rear connection frame member 14C of the upper cover body 11 via a pivot 68 so as to be rotatable around a horizontal axis. It is connected.

前記枢軸68は、後部カバー体12を支持する支軸31の前上方側で且つ支軸31の近傍位置に位置している。
また、バネ部材66の他端側(後端側)は、後部カバー体12の後端側に設けられた係止部材69に係止されている。
図14にも示すように、前記係止部材69は棒材を折曲して形成されていて、直線状の支持部69aと該支持部69aから延出されたコ字形の把持部69bとを有する。
The pivot 68 is located on the front upper side of the support shaft 31 that supports the rear cover body 12 and in the vicinity of the support shaft 31.
Further, the other end side (rear end side) of the spring member 66 is engaged with an engagement member 69 provided on the rear end side of the rear cover body 12.
As shown in FIG. 14, the locking member 69 is formed by bending a bar, and includes a linear support portion 69a and a U-shaped grip portion 69b extending from the support portion 69a. Have.

一方、前記ブラケット55の左右各側壁部56の後端側には厚さ方向が左右方向とされて配置された係止壁70が設けられ、左右各係止壁70には係合溝71が左右方向貫通状に形成され、この左右の係合溝71にわたって係止部材69の支持部69aが挿通されている。
係合溝71は、後部カバー体12の長手方向(前後方向)に関して長い直線状の長溝部71aと、この長溝部71aの前端側に形成された係止溝部71bとから構成されている。
On the other hand, a locking wall 70 is provided on the rear end side of each of the left and right side wall portions 56 of the bracket 55 so that the thickness direction is set to the left and right direction. The support member 69 a of the locking member 69 is inserted through the left and right engagement grooves 71.
The engaging groove 71 includes a linear long groove portion 71a that is long in the longitudinal direction (front-rear direction) of the rear cover body 12, and a locking groove portion 71b formed on the front end side of the long groove portion 71a.

バネ部材66の他端側は係止部材69の支持部69aの左右側壁部56間の部分に巻き付けられてピンで固定されている。
前記構成のものにあっては、係止部材69の支持部69aを係合溝71の係止溝部71bに嵌合させた場合にあっては、図13に示すように、後部カバー体12が吊り下げられた状態(矢示Bで示す位置)であるときの枢軸68と支持部69aとの距離L1よりも、後部カバー体12が耕耘時位置よりも上方に持ち上げられた状態(矢示Cで示す位置)であるときの枢軸68と支持部69aとの距離L2が小となるように構成されており、後部カバー体12がB位置から上方に揺動するとバネ部材66に座屈力がかかって該バネ部材66が弾性変形し、このバネ部材66の弾性復元力によって後部カバー体12を加圧する(後部カバー体12を下方側に揺動させる方向に付勢する)ことが可能とされている。
The other end of the spring member 66 is wound around a portion between the left and right side wall portions 56 of the support portion 69a of the locking member 69 and fixed with a pin.
In the case of the above configuration, when the support portion 69a of the locking member 69 is fitted into the locking groove portion 71b of the engaging groove 71, as shown in FIG. The state in which the rear cover body 12 is lifted above the position at the time of tillage (arrow C) from the distance L1 between the pivot 68 and the support portion 69a in the suspended state (position indicated by arrow B). When the rear cover 12 swings upward from the B position, the spring member 66 has a buckling force when the distance L2 between the pivot 68 and the support portion 69a is small. As a result, the spring member 66 is elastically deformed, and it is possible to pressurize the rear cover body 12 by the elastic restoring force of the spring member 66 (bias the rear cover body 12 in a swinging direction downward). ing.

また、本実施の形態では、バネ部材66は湾曲状に形成されていて、支持部69aを係止溝部71bに嵌合し且つ後部カバー体12を矢示B位置とした状態では、バネ部材66は弾性変形していない状態であり、耕耘時にあっては、後部カバー体12は、B位置とC位置との間に位置しており、バネ部材66の付勢力によって整地面34の接地圧が高められるようになっている。   Further, in the present embodiment, the spring member 66 is formed in a curved shape, and the spring member 66 is in a state where the support portion 69a is fitted in the locking groove portion 71b and the rear cover body 12 is in the position indicated by the arrow B. Is in a state where it is not elastically deformed, and when plowing, the rear cover body 12 is located between the B position and the C position, and the grounding pressure of the leveling ground 34 is applied by the urging force of the spring member 66. It can be enhanced.

また、支持部69aを係止溝部71bから外すと、後部カバー体12が上下に揺動しても支持部69aは長溝部71a内を摺動するだけであり、バネ部材66が弾性変形しないようになっており、後部カバー体12を下方側に揺動させる方向のバネ部材66による付勢を解除することができるように構成されている。
したがって、バネ部材66のバネ力をきかさないことにより、ロータリ耕耘部2を点検すべく、後部カバー体12を上方に持ち上げるとき等において、後部カバー体12の持ち上げ力を軽くすることができる。
Further, when the support portion 69a is removed from the locking groove portion 71b, the support portion 69a only slides in the long groove portion 71a even if the rear cover body 12 swings up and down, so that the spring member 66 is not elastically deformed. Thus, the biasing by the spring member 66 in the direction of swinging the rear cover body 12 downward is configured to be released.
Therefore, by not applying the spring force of the spring member 66, the lifting force of the rear cover body 12 can be reduced when the rear cover body 12 is lifted upward in order to check the rotary tiller 2.

なお、本実施の形態では、後部カバー体12をC位置とした状態で且つ支持部69aが係止溝部71bから外れた状態では、支持部69aは係合溝71の長溝部71aの後端側に位置する。
また、バネ部材66の付勢力は、後部カバー体12が軽くなった分の重量に略相当する力に設定するのが好ましく、また、バネ部材66の付勢力は、耕耘時における後部カバー体12の揺動範囲で略一定となるように構成するのが好ましい。
In the present embodiment, when the rear cover body 12 is in the C position and the support portion 69a is disengaged from the locking groove portion 71b, the support portion 69a is the rear end side of the long groove portion 71a of the engagement groove 71. Located in.
Further, the urging force of the spring member 66 is preferably set to a force substantially corresponding to the weight of the rear cover body 12 that has become lighter, and the urging force of the spring member 66 is set to the rear cover body 12 during plowing. It is preferable that the rotation range be substantially constant.

ロータリ耕耘機の側面図である。It is a side view of a rotary tiller. ロータリカバーの平面図である。It is a top view of a rotary cover. 上部カバー体の側面断面図である。It is side surface sectional drawing of an upper cover body. 上部カバー体の前部、中途部及び後部の拡大側面断面図である。It is an expanded side sectional view of the front part, midway part, and rear part of the upper cover body. 上部カバー体の枠体の平面図である。It is a top view of the frame of an upper cover body. 上部カバー体の上板の平面図である。It is a top view of the upper board of an upper cover body. 弾性カバー体の取付部分の正面断面図である。It is front sectional drawing of the attachment part of an elastic cover body. 後部カバー体の側面断面図である。It is side surface sectional drawing of a rear part cover body. 後部カバー体の前部、中途部及び後部の拡大側面断面図である。It is an expanded side sectional view of a front part, a middle part, and a rear part of a rear cover body. 後部カバー体の枠体の平面図である。It is a top view of the frame of a rear cover body. 後部カバー体の上板の平面図である。It is a top view of the upper plate of a rear cover body. 弾性カバーの平面図である。It is a top view of an elastic cover. バネ部材を備えたロータリカバーの側面図である。It is a side view of the rotary cover provided with the spring member. バネ部材の後側取付部分であって、(a)はD矢示図、(b)は側面断面図である。It is a rear side attachment part of a spring member, Comprising: (a) is D arrow figure, (b) is side sectional drawing.

2 ロータリ耕耘部
14 枠体
14A 側板
14B 前側連結枠材
14C 後側連結枠材
15 枠体
15A 側板
15B 前側連結枠材
15C 後側連結枠材
16 上板
17 上板
18 弾性カバー
19 弾性カバー
34 整地面
35 取付部
35a 底壁
2 Rotary Plowing Section 14 Frame 14A Side Plate 14B Front Link Frame Material 14C Rear Link Frame Material 15 Frame 15A Side Plate 15B Front Link Frame Material 15C Rear Link Frame Material 16 Upper Plate 17 Upper Plate 18 Elastic Cover 19 Elastic Cover 34 Adjusting Ground 35 Mounting part 35a Bottom wall

Claims (2)

ロータリ耕耘部(2)の上方を覆う上部カバー体(11)を備え、
左右一対の側板(14A)の前端側及び後端側を前後の連結枠材(14B,14C)で連結して形成されていて左右の側板(14A)間及び前後の連結枠材(14B,14C)間が開口状とされた矩形状の枠体(14)と、この枠体(14)の上面側に、該枠体(14)の開口を塞ぐように設けられた上板(16)と前記枠体(14)の下面側に、該枠体(14)の開口を塞ぐように設けられた弾性カバー(18)とから前記上部カバー体(11)を構成し
前記上板(16)をプラスチックの板材又は薄厚の金属板によって形成
前記上板(16)及び弾性カバー(18)を前後の連結枠材(14B,14C)で支持し
前記上板(16)の前後方向中途部に、前後の連結部材(14B,14C)と前後方向において間隔をあけて形成された取付部(35)を左右方向に間隔をおいて複数設け、
この取付部(35)は、上板(16)自体を下面側に凹ませることにより形成されていると共に前後方向に長く形成され、
この取付部(35)の底壁(35a)下面に弾性カバー(18)を重ね合わせると共に該底壁(35a)に弾性カバー(18)を前後2箇所で取り付けていることを特徴とするロータリ耕耘機
An upper cover body (11) covering the upper part of the rotary tillage part (2)
Front side and rear side before and after the connecting frame member (14B, 14 C) left and right side plates have been formed by connecting in (14A) and between the front and rear of the connecting frame member of the pair of left and right side plates (14 A) (14B , 14C) between the rectangular frame body that is an opening shaped as (1 4), the upper surface of the frame body (1 4), on which is provided so as to close the opening of the frame body (1 4) plate (1 6), the lower surface side of the frame (1 4), said frame member (1 4) the upper cover member from an elastic cover provided so as to close the opening (1 8) (11) Configure
Wherein the upper plate (1 6) is formed by a plate material or thin metal plate plastic,
The upper plate (16) and the elastic cover ( 18) are supported by front and rear connecting frame members (14B, 14C) ,
A plurality of attachment portions (35) formed at intervals in the front-rear direction and the front-rear connection members (14B, 14C) are provided in the middle in the front-rear direction of the upper plate (16) with a space in the left-right direction;
The attachment portion (35) is formed by denting the upper plate (16) itself to the lower surface side and is formed long in the front-rear direction,
A rotary tiller characterized in that an elastic cover (18) is superposed on the lower surface of the bottom wall (35a) of the mounting portion (35) and the elastic cover (18) is attached to the bottom wall (35a) at two front and rear positions. Machine .
ロータリ耕耘部(2)の後方を覆う後部カバー体(12)を備え、
左右一対の側板(15A)の前端側及び後端側を前後の連結枠材(15B,15C)で連結して形成されていて左右の側板(15A)間及び前後の連結枠材(15B,15C)間が開口状とされた矩形状の枠体(15)と、この枠体(15)の上面側に、該枠体(15)の開口を塞ぐように設けられた上板(17)と、前記枠体(15)の下面側に、該枠体(15)の開口を塞ぐように設けられた弾性カバー(19)とから前記後部カバー体(12)を構成し、
この後部カバー体(12)において、上板(17)は前後の連結枠材(14B,14C)で支持されると共に、弾性カバー(19)は前側の連結枠材(15B)と上板(17)とで支持され、且つ前記後側の連結枠材(15C)の下面が圃場に接地する整地面(34)とされていることを特徴とする請求項1に記載のロータリ耕耘機
A rear cover (12) covering the rear of the rotary tillage part (2),
The left and right side plates (15A) and the front and rear connecting frame members (15B, 15C) are formed by connecting the front end side and rear end side of the pair of left and right side plates (15A) with the front and rear connecting frame members (15B, 15C). ) A rectangular frame (15) having an opening, and an upper plate (17) provided on the upper surface side of the frame (15) so as to close the opening of the frame (15). The rear cover body (12) is configured from an elastic cover (19) provided on the lower surface side of the frame body (15) so as to close the opening of the frame body (15),
In the rear cover body (12), the upper plate (17) is supported by the front and rear connecting frame members (14B, 14C), and the elastic cover (19) is connected to the front connecting frame member (15B) and the upper plate (17). The rotary cultivator according to claim 1, wherein a bottom surface of the rear connecting frame member (15 </ b> C) is a ground leveling surface (34) that contacts the field .
JP2005321182A 2005-11-04 2005-11-04 Rotary tiller Active JP4463184B2 (en)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2018082632A (en) * 2016-11-21 2018-05-31 松山株式会社 Agricultural machine

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4970393B2 (en) * 2008-09-17 2012-07-04 株式会社クボタ Cover device for rotary tiller

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2018082632A (en) * 2016-11-21 2018-05-31 松山株式会社 Agricultural machine

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