JPS6317602A - Plowing rotor - Google Patents
Plowing rotorInfo
- Publication number
- JPS6317602A JPS6317602A JP16280886A JP16280886A JPS6317602A JP S6317602 A JPS6317602 A JP S6317602A JP 16280886 A JP16280886 A JP 16280886A JP 16280886 A JP16280886 A JP 16280886A JP S6317602 A JPS6317602 A JP S6317602A
- Authority
- JP
- Japan
- Prior art keywords
- tilling
- rotor
- claw
- shaft
- cylinder shaft
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 210000000078 claw Anatomy 0.000 claims description 29
- 238000003971 tillage Methods 0.000 claims description 6
- 239000002689 soil Substances 0.000 description 22
- 241000196324 Embryophyta Species 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000001154 acute effect Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 230000010363 phase shift Effects 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 239000010902 straw Substances 0.000 description 1
Landscapes
- Soil Working Implements (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
【産業上の利用分野１
本発明は、４耕耘軸に取付けられて耕耘作業を行う耕耘
ロータに関するものである。
【従来の技術】
この種耕耘ロータとして、従来、側面視三角形状をした
ロータ筒軸に耕耘爪を取付ける耕耘ロータがあり、例え
ば特開昭５８−１０７１０１８゜特開昭５８−１４６２
０１号等で開示されたものが知られている。
これら従来のものは、側面視（断面）はぼ正三角形状の
筒軸の各長辺部を大面部とし、大面部の各隅部（頂部）
箇所に小面部を形成すると共に、各大面部にそれぞれ耕
耘爪を取付けｌζものであり、また、このようにして構
成した耕耘ロータを軸方向に複数連設し、かつ隣接する
耕耘ロータ相互を軸方向に直交する面において、適宜の
角位相差が生ずるようにした構成であった。[Industrial Application Field 1] The present invention relates to a tilling rotor that is attached to four tilling shafts and performs tilling work. [Prior Art] As a tillage rotor of this type, there has conventionally been a tillage rotor in which a tilling claw is attached to a rotor shaft having a triangular shape in side view.
The one disclosed in No. 01 and the like is known. In these conventional products, each long side of the cylinder shaft is approximately equilateral triangular in side view (cross section) as a large surface, and each corner (top) of the large surface is
In addition to forming small surface portions at the locations, tilling claws are attached to each large surface portion, and a plurality of tilling rotors configured in this manner are arranged in series in the axial direction, and adjacent tilling rotors are rotated one after another in the axial direction. The configuration was such that an appropriate angular phase difference was generated in a plane perpendicular to the direction.
このような構成の従来の耕耘ロータにおいては、筒軸が
側面視（断面）がほぼ正三角形であり、頂部に小面部が
形成されているとはいえ、この耕耘ロータが回転して大
面部（長辺部）に取付けられた耕耘爪で耕耘作業を行う
とき、その長辺部が耕土と面接触して生ずる際のＩ１１
抗で、耕耘ロータに浮力を生ずるものの、各長辺毎の接
触抵抗が大きすぎて耕耘ロータの回転が不円滑となり、
所要動力が大きくなるばかりでなく、機体振動を大きく
したり、また、操縦者（ハンドル、運転座席）に間欠的
な振動を与えるという問題点があった。In a conventional tilling rotor with such a configuration, the cylindrical shaft has a substantially equilateral triangular shape in side view (cross section), and although a small surface portion is formed at the top, the tilling rotor rotates to form a large surface portion ( I11 when the long side comes into surface contact with the cultivated soil when performing tillage work with the tilling claw attached to the long side
Although the resistance creates buoyancy on the tilling rotor, the contact resistance on each long side is too large, making the rotation of the tilling rotor unsmooth.
This not only increases the required power, but also increases the vibration of the aircraft and causes intermittent vibrations to the operator (steering wheel, driver's seat).
【問題点を解決するための手段１
本発明は、Ｅ記のような問題点を解決することを目的に
なされたもので、上記ロータ筒軸の各頂部位置に、筒軸
の回転方向に対し後退角を持つ面を形成し、この後退角
を持つ各面に、爪座を介して耕耘爪を取付けるようにし
たことを特徴とするものである。
また、上記のように構成した＃ｌ耘〇−夕の軸線方向に
同様の構成の複数の他の耕耘ロータを、軸方向と直交す
る面において適宜の角位相差が生ずるようにして連接し
たことを特徴とするものである。
【作 用】
上記の構成によって、本発明の耕耘ロータは、０−夕日
軸の頂部に回転方向に対し後退角を持たせることにより
耕土と接する抵抗が大幅に軽減されて所要動力が小さく
なるばかりでなく、耕耘ロータの回転が円滑に行われて
機体振動が小さくなり、操縦者にも好影響を与えるもの
である。
、また、耕耘爪を三角ロータの頂部に後退角を設番プて
取付けることにより、耕耘爪が鋭角的に耕土に打込まれ
、耕土の後方投てきが良好に行われ、さらに、後退角を
持つ各面によって適度の浮力を生じて、耕耘ロータ自体
が土中に深く入ることなく機体の沈下を防止し、操縦性
が良好となるものである。
また、耕耘ロータを軸方向と直交する面で位相差を設け
て連設することにより、その回転はよりスムーズとなり
、耕耘抵抗、機体ｉ動を少なくした耕耘作業が行える。
【実 施 例１
以下、図面を参照して本発明の実施例を具体的に説明す
る。
図において、符号１は側面視が三角形状をしたロータ筒
軸で、このロータ筒軸１は、長辺部１ａ。
Ｉａ、 １ａと頂部１ｂ、 １ｂ、 Ｉｂとからなり、
各頂部１ｂは、筒軸１の回転方向（矢印で示す）に対し
後退角αを有して傾斜しており、かつその表面はわずか
に丸味を有して外側に膨出している。この頂部１ｂは、
第１図に示すように円弧状に膨出するばか、平坦状に形
成してもよいものである。また、長辺部１ａの回転方向
の長さは、頂部１ｂの長さの約２倍に設定することが好
ましいことが実験的に明らかになっている。このような
回転方向に後退角を持つ頂部１ｂには、爪座２が設けら
れ、この爪座２にボルト・ナツト３を介して周知の耕耘
爪４が取付番プられるようになっている。また、耕耘爪
４は、ロータ筒軸１の回転方向に位相をずらせて同一円
周上に三等分する位置に、軸方向に所定の間隔を有して
配設され、耕耘ロータ５を構成している。
耕耘ロータ５は、耕耘装置の駆動ケース６から左右に突
出する駆動軸ｌに取付軸８を介して単独で装着して耕耘
作業に用いてもよいが、第２図および第４図に示すよう
に、耕耘ロータ５と同様の構成のＩＩ耘Ｏ−夕５ａを、
その軸線方向を同じ、にして軸方向と直交する面におい
て適宜の角位相差が生ずるようにして連接してもよいも
のである。この場合の耕耘ロータ５，５ａの側面形状は
第３図に示す通りである。耕耘ロータの連接は２個に限
らずそれ以上にしてもよく、また、耕耘ロータ５゜５ａ
の連接角度の位相差は、約２０度ないし約７０度が望ま
しく、実施例の場合は約６０度である。
また、耕耘ロータ５の筒軸１は外ｔＲ１ａと内筒１ｄと
からなり、内ｇ！ｊｌｄの軸心に固定され、前記駆動軸
７に嵌合される取付軸８は、耕耘ロータ５ａ側まで断面
正六角形にして延出しており、この取付軸８に嵌合する
正六角形の延長軸８ａが耕耘ロータ５ａの軸心位置に固
定されており、取付軸８と延長軸８ａの嵌合部分に設け
た複数のビン穴９にピン１０を挿通１ｊ゛ることにより
外１ｉ９１１ｃに対し内筒１ｄを軸方向に移動、固定し
、耕耘ロータ５の耕耘幅が調節されるようになっている
。
ロータ筒軸１の駆動ケース６との対接面には円環状の巻
付防止環１１が設けられており、ロータ筒軸１と駆動ケ
ース６との間にわら程、雑草等が巻付くのを防止してい
る。
このような構成の耕耘ロータ５，５ａを用いて耕耘作業
を行うときは、駆動ケース６の両側に、駆！１７１軸７
と取付軸８を嵌合させてピン１２で固定し、耕耘ロータ
５，５ａを第１図の矢印方向に回転させる。耕耘すべき
土壌は、周方向にほぼ等間隔に配設された耕耘爪４．４
．・・・により耕耘されて後方に放てきされる。このと
き、耕耘爪４，４．・・・は、ロータ筒軸１に回転方向
後退角を有する頂部１ｂに爪座２を介して取付けられて
いるので耕耘抵抗を少なく耕耘し、耕土の後方放てきを
行う。
このときロータ筒軸１では、長辺部１ａが耕土に当って
適１良の浮力を生じ耕耘ロータ５．５ａの沈下を防止す
ると共に、頂部１ｂは後退角を有しているのでその抵抗
は少なくなって、三角ロータによる不規則な回転はなく
なり、頂部１ｂｋ：おいて土壌を決りつつ後方に放てき
し、耕耘爪４の補助的働きをする。また、頂部１ｂでは
、Ｍ１土を圧縮することなく後方にｔＪ５［できするの
で、耕土の反転と共に砕土性も高まり、耕耘ロータ５，
５ａの前進性も増進する。
その結果、耕耘ロータ５，５ａは、適度の浮力を生じつ
つ前進して耕土中に沈下するのが防止され、土壌を平坦
状にＭ１耘すると共に、駆動ケース６とロータ筒軸１と
の連結部にわら稈や雑草が杏付くのを防止し、耕耘抵抗
が少なく、また、機体振動が少なくなって良好な操縦性
が得られる。また、耕耘ロータ５と５ａを、相互に軸方
向に直交する而において適宜の角位相差が生ずるように
耕耘爪４が配置されているから、耕耘爪４が周方向に連
続的に打込まれると共に、ロータ筒軸１の頂部１ｂも連
続的に土壌と接して耕土を扶って後方に放てきすること
になり、耕耘ロータ５，５ａの回転がスムーズに行われ
、耕耘効率がより向上する。
なお、耕耘ロータ５ａには、さらに他の耕耘ロータを接
続して延長し、耕幅を広げることができる。
この場合にも、相隣る耕耘ロータの回転方向の位相差を
適宜設定することで上記同様の耕耘作業を行うことがで
きる。
【発明の効果］
以上説明したように、本発明の耕耘ロータによれば、ま
ず、ロータ筒軸１の各頂部１ｂ位置に、筒軸１の回転方
向に対し後退角αの面を形成し、この、而１ｂに爪座２
を介して耕耘爪４を取付けたから、耕耘爪４による耕耘
抵抗が小さくなって、耕土の後方放てきが良好に行われ
る。また、頂部１ｂにおいては後退角αを有して耕土に
接するので、適度の浮力を生じて耕耘ロータの土中沈下
を防止し、しかも頂部１ｂによる耕土の後方放てきを行
って振動のないスムーズな耕耘作業を行うことができる
。
また、１つの耕耘ロータに他の耕耘ロータを軸方向と直
交する面において適宜の角位相差が生ずるように連接し
たので、耕耘ロータの回転に伴う耕耘爪によるＭ（転作
用、ロータ筒軸１の頂部１ｂによる土壌の決り、後方放
てきがよりスムーズに行われ、機体振動の少ない、操縦
性の良好な耕耘作業が行える。[Means for Solving the Problems 1] The present invention has been made for the purpose of solving the problems as described in E. The present invention is characterized in that a surface having a receding angle is formed, and a tilling claw is attached to each surface having a receding angle via a claw seat. In addition, a plurality of other tilling rotors having the same configuration are connected in the axial direction of #l 〘〇〇-Yu configured as above so that an appropriate angular phase difference occurs in a plane perpendicular to the axial direction. It is characterized by: [Function] With the above configuration, the tilling rotor of the present invention has a receding angle at the top of the 0-sunset axis with respect to the rotation direction, thereby significantly reducing the resistance in contact with the tilled soil and reducing the required power. Instead, the tilling rotor rotates smoothly, reducing machine vibration, which also has a positive effect on the operator. In addition, by attaching the tilling claws to the top of the triangular rotor with a receding angle, the tilling claws are driven into the tilled soil at an acute angle, and the tilled soil can be thrown backwards well. Appropriate buoyancy is generated by each surface, and the tilling rotor itself is prevented from sinking into the soil, preventing the machine from sinking, resulting in good maneuverability. Furthermore, by arranging the tilling rotors in series with a phase difference in a plane perpendicular to the axial direction, the rotation becomes smoother, and tilling work can be performed with less tilling resistance and machine movement. [Example 1] Hereinafter, an example of the present invention will be specifically described with reference to the drawings. In the figure, reference numeral 1 denotes a rotor cylinder shaft that is triangular in side view, and this rotor cylinder shaft 1 has a long side portion 1a. Consisting of Ia, 1a and top portions 1b, 1b, Ib,
Each top portion 1b is inclined at a receding angle α with respect to the rotational direction (indicated by an arrow) of the cylinder shaft 1, and its surface is slightly rounded and bulges outward. This top portion 1b is
As shown in FIG. 1, it may be formed into an arcuate shape, or it may be formed into a flat shape. Furthermore, it has been experimentally revealed that the length of the long side portion 1a in the rotational direction is preferably set to about twice the length of the top portion 1b. A claw seat 2 is provided on the top portion 1b having such a backward angle in the rotational direction, and a well-known tilling claw 4 is attached to this claw seat 2 via a bolt/nut 3. Further, the tilling claws 4 are arranged at predetermined intervals in the axial direction at positions dividing the same circumference into three equal parts with a phase shift in the rotational direction of the rotor cylindrical shaft 1, and constitute the tilling rotor 5. are doing. The tilling rotor 5 may be used for tilling work by being attached to the drive shaft l projecting left and right from the drive case 6 of the tilling device via the mounting shaft 8, but as shown in FIGS. 2 and 4, , a II rotor 5a having the same configuration as the tiller rotor 5,
They may be connected in such a way that their axial directions are the same and an appropriate angular phase difference occurs in a plane perpendicular to the axial direction. The side shapes of the tilling rotors 5, 5a in this case are as shown in FIG. The number of connected tilling rotors is not limited to two, but more than two may be used.
The phase difference between the articulation angles is preferably about 20 degrees to about 70 degrees, and in the example is about 60 degrees. Further, the cylinder shaft 1 of the tilling rotor 5 is composed of an outer cylinder tR1a and an inner cylinder 1d, and has an inner cylinder tR1a and an inner cylinder 1d. A mounting shaft 8 fixed to the axis of the jld and fitted to the drive shaft 7 extends to the tilling rotor 5a side with a regular hexagonal cross section, and a regular hexagonal extension shaft fitted to the mounting shaft 8. 8a is fixed at the axial center position of the tilling rotor 5a, and by inserting pins 10 into a plurality of pin holes 9 provided at the fitting portion of the mounting shaft 8 and the extension shaft 8a, the inner cylinder is separated from the outer cylinder 1i911c. 1d is moved and fixed in the axial direction, and the tilling width of the tilling rotor 5 is adjusted. An annular anti-wrapping ring 11 is provided on the surface of the rotor shaft 1 in contact with the drive case 6 to prevent weeds and the like from wrapping around between the rotor shaft 1 and the drive case 6. is prevented. When performing tillage work using the tilling rotors 5, 5a having such a configuration, there are two drive wheels on both sides of the drive case 6. 171 axis 7
and the mounting shaft 8 are fitted and fixed with the pin 12, and the tilling rotors 5, 5a are rotated in the direction of the arrow in FIG. The soil to be tilled is cultivated using tilling claws 4.4 arranged at approximately equal intervals in the circumferential direction.
．． It is plowed and thrown backwards by... At this time, tilling claws 4, 4. ... is attached to the rotor cylinder shaft 1 through the claw seat 2 to the top portion 1b having a receding angle in the rotational direction, so that tilling can be carried out with less tilling resistance and the tilled soil can be thrown backwards. At this time, in the rotor cylindrical shaft 1, the long side 1a hits the tilled soil and generates a moderate buoyancy to prevent the tilling rotor 5.5a from sinking, and since the top 1b has a receding angle, the resistance is reduced. The irregular rotation by the triangular rotor is eliminated, and the soil is fixedly released at the top part 1bk to the rear, and serves as an auxiliary function for the tilling claws 4. In addition, at the top part 1b, the M1 soil can be moved backwards by tJ5 without being compressed, so that the soil crushability is improved as the tilling soil is turned over, and the tilling rotor 5,
The progressability of 5a is also enhanced. As a result, the tilling rotors 5, 5a move forward while generating appropriate buoyancy, are prevented from sinking into the tilled soil, flatten the soil M1, and connect the drive case 6 and rotor cylinder shaft 1. This prevents straw culms and weeds from sticking to the soil, reduces tillage resistance, and reduces machine vibration, resulting in good maneuverability. Further, since the tilling claws 4 are arranged so that an appropriate angular phase difference occurs between the tilling rotors 5 and 5a, which are orthogonal to each other in the axial direction, the tilling claws 4 are continuously driven in the circumferential direction. At the same time, the top portion 1b of the rotor cylinder shaft 1 also comes into continuous contact with the soil and throws the tilled soil backward, allowing the tilling rotors 5 and 5a to rotate smoothly, further improving tilling efficiency. . Note that the tilling rotor 5a can be further connected to and extended to extend the tilling width. In this case as well, the same tilling work as described above can be performed by appropriately setting the phase difference in the rotational direction of the adjacent tilling rotors. [Effects of the Invention] As explained above, according to the tilling rotor of the present invention, first, a surface having a sweepback angle α with respect to the rotational direction of the cylinder shaft 1 is formed at each top 1b position of the rotor cylinder shaft 1, This, then 1b, claw seat 2
Since the tilling claws 4 are attached via the tilling claws, the tilling resistance caused by the tilling claws 4 is reduced, and the tilled soil can be thrown backwards well. In addition, since the apex 1b contacts the cultivated soil with a receding angle α, it generates an appropriate buoyancy and prevents the tilling rotor from sinking into the soil.Furthermore, the apex 1b releases the cultivated soil backwards, resulting in smooth vibration-free operation. It is possible to carry out plowing work. In addition, since one tilling rotor is connected to another tilling rotor so that an appropriate angular phase difference occurs in a plane orthogonal to the axial direction, M (rotation effect, rotor cylindrical shaft 1 The top part 1b of the soil can be fixed and thrown backward more smoothly, and plowing work can be performed with less machine vibration and good maneuverability.
第１図は単独の耕耘ロータの側面図、第２図は複数の耕
耘〇−夕を駆動ケースに取付けた状態の正面図、第３図
は第２図の側面図、第４図は耕幅調節部の断面図である
。
１・・・０−夕筒軸、１ａ・・・長辺部、１ｂ・・・頂
部、１ｃ・・・外筒、１ｄ・・・内筒、２・・・爪座、
３・・・ボルト・・ナツト、４・・・耕耘爪、５．５ａ
・・・耕耘ロータ、Ｇ・・・駆動ケース、７・・・駆動
軸、８・・・取付軸、８ａ・・・延長軸、９・・・ピン
穴、１０．１２・・・ピン、１１・・・巻付防止環、α
・・・後退角。
特許出願人 株式会社宮丸アタッチメント研究所
代理人 弁理士 小 橋 信 淳
同 弁理士 村 井 進
ウごΔ］
りｉ３国Figure 1 is a side view of a single tilling rotor, Figure 2 is a front view of multiple tillers attached to the drive case, Figure 3 is a side view of Figure 2, and Figure 4 is the tilling width. It is a sectional view of an adjustment part. 1...0-tube shaft, 1a...long side, 1b...top, 1c...outer cylinder, 1d...inner cylinder, 2...claw seat,
3...Bolt...Nut, 4...Tilling claw, 5.5a
... Tilling rotor, G ... Drive case, 7 ... Drive shaft, 8 ... Mounting shaft, 8a ... Extension shaft, 9 ... Pin hole, 10.12 ... Pin, 11 ...Anti-wrapping ring, α
...Retreat angle. Patent applicant Miyamaru Attachment Research Institute Co., Ltd. Agent Patent attorney Nobuo Kobashi Jundo Patent attorney Shinugo Murai Δ] Ri3 countries
Claims (2)
ける耕耘ロータにおいて、 上記ロータ筒軸の各頂部位置に、筒軸の回転方向に対し
後退角を持つ面を形成し、この後退角を持つ各面に、爪
座を介して耕耘爪を取付けるようにしたことを特徴とす
る耕耘ロータ。(1) In a tilling rotor in which a tilling claw is attached to a rotor cylinder shaft having a triangular shape in side view, a surface having a receding angle with respect to the rotational direction of the cylinder shaft is formed at each top position of the rotor cylinder shaft, and this receding angle A tilling rotor characterized in that a tilling claw is attached to each surface of the rotor through a claw seat.
ける耕耘ロータにおいて、 上記ロータ筒軸の各頂部位置に、筒軸の回転方向に対し
後退角を持つ面を形成し、この後退角を持つ各面に、爪
座を介して耕耘爪を取付けて耕耘ロータを構成すると共
に、この耕耘ロータの軸線方向に同様の構成の複数の他
の耕耘ロータを、軸方向と直交する面において適宜の角
位相差が生ずるようにして連接したことを特徴とする耕
耘ロータ。(2) In a tilling rotor in which a tilling claw is attached to a rotor cylinder shaft having a triangular shape in side view, a surface having a receding angle with respect to the rotational direction of the cylinder shaft is formed at each top position of the rotor cylinder shaft, and this receding angle A tilling rotor is constructed by attaching a tilling claw to each surface of the rotor through a claw seat, and a plurality of other tilling rotors having the same configuration are attached in the axial direction of this tilling rotor as appropriate in a plane orthogonal to the axial direction. A tillage rotor, characterized in that the rotors are connected in such a way that an angular phase difference of .
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16280886A JPS6317602A (en) | 1986-07-10 | 1986-07-10 | Plowing rotor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16280886A JPS6317602A (en) | 1986-07-10 | 1986-07-10 | Plowing rotor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6317602A true JPS6317602A (en) | 1988-01-25 |
Family
ID=15761613
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP16280886A Pending JPS6317602A (en) | 1986-07-10 | 1986-07-10 | Plowing rotor |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6317602A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01243738A (en) * | 1988-03-25 | 1989-09-28 | Anritsu Corp | Private branch radio station equipment |
| JP2019000036A (en) * | 2017-06-14 | 2019-01-10 | 株式会社クボタ | Walking-type work machine |
| JP2022059623A (en) * | 2019-04-25 | 2022-04-13 | ねぎびとカンパニー株式会社 | Tilling method, and agricultural machine using for the same |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS587501B2 (en) * | 1972-07-29 | 1983-02-10 | ツア−ンラ−トフアブリ−ク フリ−ドリツヒスハ−フエン アクチエンゲゼルシヤフト | Steering gear system with changing gear ratio |
| JPS58146201A (en) * | 1982-02-20 | 1983-08-31 | 佐野 茂樹 | Width control apparatus in cultivating part |
-
1986
- 1986-07-10 JP JP16280886A patent/JPS6317602A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS587501B2 (en) * | 1972-07-29 | 1983-02-10 | ツア−ンラ−トフアブリ−ク フリ−ドリツヒスハ−フエン アクチエンゲゼルシヤフト | Steering gear system with changing gear ratio |
| JPS58146201A (en) * | 1982-02-20 | 1983-08-31 | 佐野 茂樹 | Width control apparatus in cultivating part |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01243738A (en) * | 1988-03-25 | 1989-09-28 | Anritsu Corp | Private branch radio station equipment |
| JP2019000036A (en) * | 2017-06-14 | 2019-01-10 | 株式会社クボタ | Walking-type work machine |
| JP2022059623A (en) * | 2019-04-25 | 2022-04-13 | ねぎびとカンパニー株式会社 | Tilling method, and agricultural machine using for the same |
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