JPS6132921B2 - - Google Patents
Info
- Publication number
- JPS6132921B2 JPS6132921B2 JP54052039A JP5203979A JPS6132921B2 JP S6132921 B2 JPS6132921 B2 JP S6132921B2 JP 54052039 A JP54052039 A JP 54052039A JP 5203979 A JP5203979 A JP 5203979A JP S6132921 B2 JPS6132921 B2 JP S6132921B2
- Authority
- JP
- Japan
- Prior art keywords
- shaft
- tilling
- bearing body
- drive chain
- chain case
- 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.)
- Expired
Links
- 230000005540 biological transmission Effects 0.000 claims description 6
- 238000003971 tillage Methods 0.000 claims description 2
- 239000002689 soil Substances 0.000 description 13
- 210000000078 claw Anatomy 0.000 description 12
- 239000000428 dust Substances 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 244000025254 Cannabis sativa Species 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000036544 posture Effects 0.000 description 1
Landscapes
- Soil Working Implements (AREA)
- Harvesting Machines For Root Crops (AREA)
Description
【発明の詳細な説明】
この発明は、センタドライブ方式のロータリに
おけるローターを駆動するための駆動軸に関する
ものであり、特に、駆動軸及びこれの入力側に設
けてある自在接手を、充分に防塵できるように工
夫した耕耘伝動装置を提案するものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a drive shaft for driving a rotor in a center drive type rotary. This paper proposes a tillage transmission device devised to enable this.
従来、畦の側面部を種々の傾斜角に削ることが
できるように、耕耘軸の軸支角度を、駆動チエン
ケースに対して変更調節できるようにして、駆動
チエンケースに軸支されている軸支角度不変の駆
動軸にて自在接手を介して耕耘軸を駆動するよう
に構成したロータリ作業機は知られている。 Conventionally, in order to be able to carve the side surface of the ridge to various angles of inclination, the shaft supporting angle of the tilling shaft can be changed and adjusted relative to the drive chain case. 2. Description of the Related Art A rotary working machine is known in which a tilling shaft is driven by a drive shaft whose support angle remains unchanged via a universal joint.
そして、上記自在接手は、耕耘軸の耕爪によつ
て耕起される土を常にかぶることになるので、ナ
ツクルピン等の枢支軸受部に塵埃が入り易く、摩
耗が甚しくなつて円滑な回転が困難となり、更
に、小石等が自在接手に衝突して不慮破損の原因
となる等の欠陥があつた。更に又、耕耘軸の軸支
角が調節可能であることによつて、逆に、このこ
とが耕耘軸の軸支剛性を弱くすると云う宿命的不
利もある。 Since the above-mentioned universal joint is always covered with the soil being tilled by the tilling claws of the tilling shaft, it is easy for dust to get into the pivot bearings such as the knuckle pins, resulting in severe wear and difficulty in smooth rotation. Furthermore, there were defects such as pebbles and the like colliding with the universal joint, causing accidental damage. Furthermore, since the pivot angle of the tilling shaft is adjustable, there is also the disadvantage that this conversely weakens the pivot rigidity of the tilling shaft.
そこで、この発明は駆動チエンケースへ、その
軸支角度が調節自在に軸支されている耕耘軸を、
この軸支剛性が強固となるように工夫したもので
あつて、その構成は駆動チエンケース１に設けた
円筒軸受体８にて軸支されて、この駆動チエンケ
ース１内の伝動機構によつて駆動されるように設
けた駆動軸３と、夫々中空円筒形であつて、取付
状態で水平状となつて円筒軸受体８へ外嵌できる
水平状部５ｅ及び、この水平状部５ｅに対して傾
斜する傾斜状部５ｆを有して取付座５ｄによつて
駆動チエンケース１の左右外側部へ水平状部５ｅ
の筒心を中心として取付位置を回動調節できるよ
うに構成された湾曲軸受体５と、傾斜状部５ｆに
て回転自在に軸支及びシールされた耕耘軸７と、
駆動軸３及び耕耘軸７を、これらの１方の軸に設
けた長孔が他方の軸に設けた係合ピン１１に係合
することによつて互に連結されるようにした自在
接手３３とを有していることを特徴とするセンタ
ドライブロータリの耕耘伝動装置である。 Therefore, this invention provides a tilling shaft that is rotatably supported on the drive chain case so that its shaft support angle can be freely adjusted.
This shaft support is designed to have strong rigidity, and its structure is such that it is supported by a cylindrical bearing body 8 provided in the drive chain case 1, and is operated by a transmission mechanism within the drive chain case 1. A drive shaft 3 provided to be driven, a horizontal portion 5e each having a hollow cylindrical shape, which becomes horizontal in the installed state and can be externally fitted onto the cylindrical bearing body 8, and the horizontal portion 5e. A horizontal portion 5e having an inclined inclined portion 5f is connected to the left and right outer portions of the drive chain case 1 by the mounting seat 5d.
a curved bearing body 5 configured to be able to rotate and adjust its mounting position around the cylindrical center; a tilling shaft 7 rotatably supported and sealed at an inclined portion 5f;
A universal joint 33 in which the driving shaft 3 and the tilling shaft 7 are connected to each other by a long hole provided in one of these shafts engaging with an engagement pin 11 provided in the other shaft. This is a center drive rotary tilling transmission device characterized by having the following features.
以下、この発明の一実施例を別紙添付の実施例
図に従つて詳述する。 Hereinafter, one embodiment of the present invention will be described in detail with reference to the attached drawings.
第１図に示したように動力農機に設けた駆動チ
エンケース１の下部に、第３図のように従動スプ
ロケツトホイル２を取付けた駆動軸３をベアリン
グ４，４にて軸支し、この駆動軸３の両端部分は
駆動チエンケース１から夫々、左右に突出させ
る。 As shown in FIG. 1, a drive shaft 3 with a driven sprocket wheel 2 attached thereon as shown in FIG. Both end portions of the drive shaft 3 are made to protrude left and right from the drive chain case 1, respectively.
そして、中空筒状の湾曲軸受体５の筒孔５ａの
外方部孔５ｂにベアリング６，６を嵌着し、この
湾曲軸受体５の筒孔５ａの円筒の内方部孔５ｃの
孔心C1がベアリング６，６の回転中心C2に対し
て交角αをなしてこの筒孔５ａ内にて交るように
内方部孔５ｃを形成し、又、この内方部孔５ｃの
外周外方にて湾曲軸受体５に円輪状の取付座５ｄ
を設け、取付座５ｄに対して内方部孔５ｃの外周
部分に相当する水平状部５ｅ及び、外方孔部５ｂ
の外周部分に相当して水平状部５ｅに対して傾斜
する傾斜状部５ｆを湾曲軸受体５５に形成する。 Then, the bearings 6, 6 are fitted into the outer hole 5b of the cylindrical hole 5a of the hollow cylindrical curved bearing body 5, and the hole center of the cylindrical inner hole 5c of the cylindrical hole 5a of the curved bearing body 5 is fitted. An inner hole 5c is formed so that C 1 intersects within the cylindrical hole 5a at an angle α with respect to the center of rotation C 2 of the bearings 6, 6, and the outer periphery of the inner hole 5c is A circular mounting seat 5d is attached to the curved bearing body 5 on the outside.
A horizontal portion 5e corresponding to the outer peripheral portion of the inner hole 5c and an outer hole portion 5b are provided with respect to the mounting seat 5d.
An inclined portion 5f is formed on the curved bearing body 55 and is inclined with respect to the horizontal portion 5e, corresponding to the outer peripheral portion of the curved bearing body 55.
又、ベアリング６，６の内輪に嵌着した耕耘軸
７の外端は湾曲軸受体５から更に外方に突出させ
て、この耕耘軸７の内側には筒孔５ａ内で回転で
きる自在接手部７ａを設けている。 Further, the outer end of the tilling shaft 7 fitted into the inner rings of the bearings 6, 6 is made to protrude further outward from the curved bearing body 5, and the inside of this tilling shaft 7 is provided with a universal joint portion that can rotate within the cylindrical hole 5a. 7a is provided.
そして、ベアリング４の外輪に嵌着した円筒軸
受体８に湾曲軸受体５の内方部孔５ｃを回動自在
に外嵌して取付座５ｄを駆動チエンケース１の左
右側面に形成した取付座１ａ，１ａに当てがつ
て、取付ボルト９…とナツト１０…を用いて湾曲
軸受体５，５を駆動チエンケース１に取付けれ
ば、駆動軸３の左右突出部に夫々、嵌着した係合
ピン１１が自在接手部７ａの長孔７ｂ，７ｂに係
合することになつて、孔心C1と回転中心C2との
交点Ｐに、この係合ピン１１の中心点が一致する
ことになり、従動スプロケツトホイル２と図示外
の駆動スプロケツトホイルとに巻掛けた駆動チエ
ン１２を回動すれば、駆動軸３と共に回転する係
合ピン１１は長孔７ｂ，７ｂ内を摺動しながら、
自在接手部７ａに係合して耕耘軸７を回転させる
ことになつて、係合ピン１１と長孔７ｂ，７ｂと
の係合の如きものにて簡易な自在接手３３を形成
し、自在接手３３は中空筒状の湾曲軸受体５に内
装され、ベアリング６，６の外側方にて、この湾
曲軸受体５に取付けているシール３４によつて、
耕耘軸７の外側附近から塵埃等が、自在接手３３
の附近に侵入できないようにしている。そして、
取付座５ｄに等間隔な水平状部５ｅ…を孔心C1
を中心として同芯円上に設けておいて、駆動チエ
ンケース１の取付座１ａに対する取付位置を水平
状部５ｅのピツチの倍数毎に回動させて取付け変
更すれば、耕耘軸７の回転中心C2が駆動チエン
ケース１又は水平面に対してなす角度が変更、調
節できるように構成し、耕耘軸７の左右突出部に
は耕耘爪１３を備えた横幅の短いローター１４を
取外し自在に嵌入して取付ピン１５にて固定でき
るようにしたものである。 Mounting seats 5d are formed on the left and right side surfaces of the drive chain case 1 by rotatably fitting the inner hole 5c of the curved bearing body 5 into the cylindrical bearing body 8 fitted to the outer ring of the bearing 4. 1a, 1a, and attach the curved bearing bodies 5, 5 to the drive chain case 1 using the mounting bolts 9 and nuts 10. When the pin 11 engages with the long holes 7b, 7b of the universal joint 7a, the center point of the engagement pin 11 coincides with the intersection point P between the hole center C1 and the rotation center C2 . Therefore, when the drive chain 12, which is wound around the driven sprocket wheel 2 and the drive sprocket wheel (not shown), is rotated, the engagement pin 11, which rotates together with the drive shaft 3, slides within the elongated holes 7b, 7b. While
In order to rotate the tilling shaft 7 by engaging the universal joint portion 7a, a simple universal joint 33 is formed by engagement between the engaging pin 11 and the elongated holes 7b, 7b. 33 is housed inside a hollow cylindrical curved bearing body 5, and a seal 34 is attached to this curved bearing body 5 on the outside of the bearings 6, 6.
Dust, etc. from around the outside of the tilling shaft 7 can be removed from the universal joint 33.
It prevents people from entering the area. and,
Attach equally spaced horizontal portions 5e to the mounting seat 5d with hole centers C1
If the mounting position of the drive chain case 1 with respect to the mounting seat 1a is changed by rotating every multiple of the pitch of the horizontal part 5e, the rotation center of the tilling shaft 7 can be It is configured so that the angle that C 2 makes with respect to the drive chain case 1 or the horizontal plane can be changed and adjusted, and a short rotor 14 equipped with tilling claws 13 is removably fitted into the left and right protruding parts of the tilling shaft 7. It can be fixed with a mounting pin 15.
この発明に係る耕耘軸は上述のように構成して
いるので、回転中心C2の廻りに湾曲軸受体５の
取付座５ｄを駆動チエンケース１の取付座１ａに
対して取付位置を調節することによつて、孔心
C1を中心に回転する耕耘軸７の駆動チエンケー
ス１に対する軸支角度を自在に変更できるもので
あつて、例えば第４図のように孔心C1が外側上
りになるようにすれば、左右の畦１５，１５に植
生されている作物１６の根１６ａの下方の土を削
り取ることができて作物１６の抜き取りが極めて
容易となる。 Since the tilling shaft according to the present invention is constructed as described above, the mounting position of the mounting seat 5d of the curved bearing body 5 relative to the mounting seat 1a of the drive chain case 1 can be adjusted around the rotation center C2 . By Kong Xin
If the shaft support angle of the tilling shaft 7, which rotates around C 1 , with respect to the drive chain case 1 can be changed freely, for example, if the hole center C 1 is made to be upwardly outward as shown in FIG. The soil below the roots 16a of the crop 16 grown in the left and right ridges 15, 15 can be scraped off, making it extremely easy to pull out the crop 16.
次に第５図のように、孔心C1が外側下りにな
るように耕耘軸７の軸支角度を調節してローター
１７の外側の耕耘爪１８は短いものとし、又、長
い耕耘爪１９を内側に取付ければ、外側の耕耘爪
１８，１８によつて左右の畦２０，２０の内側の
斜面２０ａ，２０ａの土を草と共に削り取ると時
に、畦２０のの溝２０ｂの土も削つて斜面２０
ａ，２０ａから削り取つた土と混合して後続の培
土板２１によつて畦２０，２０の斜面２０ａ，２
０ａと上面に再度培土し土盛りを行うことができ
るのである。 Next, as shown in FIG. 5, the pivot angle of the tilling shaft 7 is adjusted so that the hole center C 1 is downward to the outside, and the tilling claws 18 on the outside of the rotor 17 are made short, and the tilling claws 19 are made long. If it is installed on the inside, when the soil on the inner slopes 20a, 20a of the left and right ridges 20, 20 is scraped together with the grass by the outer tilling claws 18, 18, the soil in the groove 20b of the ridge 20 is also scraped away. slope 20
The slopes 20a, 2 of the ridges 20, 20 are mixed with the soil scraped from the soil a, 20a and then used by the subsequent soil plate 21.
It is possible to re-cultivate and mound the top surface of 0a.
又、第６図イのように孔心C1を八の字状とし
た耕耘軸７，７に耕土を内側方向へ掻き取りでき
る形状の耕耘爪２１…を備えたローター２２を取
付ければ、同図の矢線のように土を送ることがで
きるので、同図ロのように盛上高い畦２３に成形
できることになる。 Also, if a rotor 22 equipped with tilling claws 21 shaped to scrape the cultivated soil inward is attached to the tilling shafts 7, 7 with the hole center C1 shaped like a figure eight, as shown in Fig. 6A, Since the soil can be sent in the direction of the arrow in the figure, it is possible to form the ridge 23 into a high mound as shown in the figure (b).
又、第７図イのように逆八字状に孔心C1を調
節した耕耘軸７，７には土を深く掘ることのでき
る耕耘爪２４を内側に、又、土を外側に放てきで
きる耕耘爪２５…を外側に夫々設けたローター２
６，２６を取付けているので、耕耘爪２４，２４
によつて同図ロのように溝２７を掘つて掘り取つ
た土を更に左右外側方に放てきし、駆動チエンケ
ース１の後方に設けた仕上板２８によつて溝２７
を、例えば長方形状に仕上げることができるもの
である。 Further, as shown in Fig. 7A, the tilling shafts 7, 7 whose hole centers C1 are adjusted in an inverted 8-shape are equipped with tilling claws 24 that can dig deep into the soil, and can also throw the soil outward. A rotor 2 provided with tilling claws 25 on the outside.
6, 26 are installed, so the tilling claws 24, 24
Then, a groove 27 is dug as shown in FIG.
can be finished into a rectangular shape, for example.
さらに、左右の耕耘軸７，７の孔心C1，C1が
例えば、第８図イのように右側進みとなるように
調節すれば掘り取つた土を右側に放てきできる耕
耘爪２９…を備えたローター３０を耕耘軸７，７
に装着することによつて、同図ロように圃場の端
の畦３１際に溝３２を掘削することができるもの
である。 Furthermore, if the hole centers C 1 and C 1 of the left and right tilling shafts 7, 7 are adjusted so that they advance to the right as shown in Fig. 8A, the tilling claws 29 can throw the excavated soil to the right side... A rotor 30 equipped with a tilling shaft 7, 7
By attaching it to the field, it is possible to excavate a groove 32 at the edge of the ridge 31 at the edge of the field, as shown in FIG.
この発明に係るセンタドライブロータリの耕耘
伝動装置は上述のように構成したので、耕耘軸７
を軸支している湾曲軸受体５を、駆動チエンケー
ス１に設けている円筒軸受８へ外嵌すると共に、
取付座５ｄによつて駆動チエーンケース１に取付
けているので、湾曲軸受体５はこの円筒軸受体８
及び取付座５ｄの２つの部材によつて充分強固定
されることになつて、湾曲軸受体５の取付位置を
回動調節して耕耘軸７を種々の姿勢に軸支したと
きに耕耘爪によつてこの耕耘軸７が受ける複雑な
耕耘反力と振動を耐えることができ、又、湾曲軸
受体５の傾斜状部５ｆに回転自在に軸支及びシー
ルされた耕耘軸７と駆動軸３を、これらの一方の
軸に設けた長孔が他方の軸に設けた係合ピンに係
合することによつて構成される自在接手３３を設
けているので、湾曲軸受体５を駆動チエンケース
１に取付けた際に、容易に耕耘軸７を駆動軸３に
連結できることになつたのである。 Since the center drive rotary tilling transmission device according to the present invention is constructed as described above, the tilling shaft 7
The curved bearing body 5 that supports the drive chain case 1 is fitted onto the cylindrical bearing 8 provided in the drive chain case 1,
Since it is attached to the drive chain case 1 by the mounting seat 5d, the curved bearing body 5 is attached to this cylindrical bearing body 8.
When the tilling shaft 7 is pivoted in various postures by rotationally adjusting the mounting position of the curved bearing body 5, the tilling claws are fixed sufficiently firmly by the two members of the mounting seat 5d and the mounting seat 5d. Therefore, the tilling shaft 7 can withstand the complex tilling reaction force and vibration that the tilling shaft 7 receives, and the tilling shaft 7 and the drive shaft 3, which are rotatably supported and sealed on the inclined portion 5f of the curved bearing body 5, can withstand the complicated tilling reaction force and vibration that the tilling shaft 7 receives. , since a universal joint 33 is provided in which a long hole provided on one of these shafts engages with an engagement pin provided on the other shaft, the curved bearing body 5 can be connected to the drive chain case 1. When the tiller shaft 7 is attached to the drive shaft 3, the tilling shaft 7 can be easily connected to the drive shaft 3.
第１図はこの発明を適用したロータリの側面
図、第２図はこの発明の左半部を示す斜視図、第
３図はこの発明の縦断正面図、第４図、第５図は
使用状態における後面図、第６図イ、第７図イ及
び第８図イはこの発明の夫々の使用状態における
平面図、第６図ロ、第７図ロ、第８図ロは夫々の
図イに示した使用により形成された畦又は溝を示
す断面図である。
符号説明、１……駆動チエンケース、１ａ，５
ｄ……取付座、２……従動スプロケツトホイル、
３……駆動軸、４，６……ベアリング、５……湾
曲軸受体、５ａ……筒孔、５ｂ……外方部孔、５
ｃ……内方部孔、５ｅ……水平状部、７……耕耘
軸、７ａ……自在接手部、７ｂ……長孔、８……
円筒軸受体、９……取付ボルト、１０……ナツ
ト、１１……係合ピン、１２……駆動チエン、１
３，１８，１９，２１，２４，２５，２９……耕
耘爪、１５，２０，２３，３１……畦、１４，１
７，２２，２６，３０……ローター、１６……作
物、１６ａ……根、２０ａ……斜面、２０ｂ，２
７，３２……溝、２８……仕上板、３３……自在
接手、３４……シール、３５……培土板、C1…
…孔心、C2……回転中心、α……交角、Ｐ……
交点。
Fig. 1 is a side view of a rotary to which this invention is applied, Fig. 2 is a perspective view showing the left half of this invention, Fig. 3 is a longitudinal sectional front view of this invention, and Figs. 4 and 5 are in use. The rear view in FIG. FIG. 3 is a cross-sectional view showing the ridges or grooves formed by the illustrated use. Description of symbols, 1... Drive chain case, 1a, 5
d...Mounting seat, 2...Driven sprocket wheel,
3... Drive shaft, 4, 6... Bearing, 5... Curved bearing body, 5a... Cylindrical hole, 5b... Outer hole, 5
c... Inner hole, 5e... Horizontal part, 7... Cultivating shaft, 7a... Universal joint part, 7b... Long hole, 8...
Cylindrical bearing body, 9... Mounting bolt, 10... Nut, 11... Engagement pin, 12... Drive chain, 1
3, 18, 19, 21, 24, 25, 29... tilling claw, 15, 20, 23, 31... ridge, 14, 1
7, 22, 26, 30...rotor, 16...crop, 16a...root, 20a...slope, 20b, 2
7, 32... Groove, 28... Finishing plate, 33... Universal joint, 34... Seal, 35... Cultivating soil plate, C 1 ...
...Content center, C 2 ... Center of rotation, α ... Angle of intersection, P ...
intersection.
Claims (1)
て軸支されて、この駆動チエンケース１内の伝動
機構によつて駆動されるように設けた駆動軸３
と、夫々中空円筒形であつて、取付状態で水平状
となつて円筒軸受体８へ外嵌できる水平状部５ｅ
及びこの水平状部５ｅに対して傾斜する傾斜状部
５ｆを有して取付座５ｄによつて駆動チエンケー
ス１の左右外側部へ水平状部５ｅの筒心を中心と
して取付位置を回動調節できるように構成された
湾曲軸受体５と、傾斜状部５ｆにて回転自在に軸
支及びシールされた耕耘軸７と、駆動軸３及び耕
耘軸７を、これらの一方の軸に設けた長孔が他方
の軸に設けた係合ピン１１に係合することによつ
て互に連合されるようにした自在接手３３とを有
していることを特徴とするセンタドライブロータ
リの耕耘伝動装置。1. A drive shaft 3 supported by a cylindrical bearing body 8 provided in the drive chain case 1 and driven by a transmission mechanism in the drive chain case 1.
and a horizontal portion 5e, each of which has a hollow cylindrical shape, becomes horizontal in the installed state, and can be externally fitted onto the cylindrical bearing body 8.
It has an inclined part 5f that is inclined with respect to the horizontal part 5e, and the mounting position can be rotated around the cylindrical center of the horizontal part 5e to the left and right outer parts of the drive chain case 1 by means of the mounting seat 5d. A curved bearing body 5 configured to allow rotation, a tilling shaft 7 that is rotatably supported and sealed at the inclined portion 5f, and a long shaft provided on one of these shafts. A center drive rotary tillage transmission device characterized in that it has a universal joint 33 whose holes are connected to each other by engaging with an engaging pin 11 provided on the other shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5203979A JPS55144801A (en) | 1979-04-28 | 1979-04-28 | Tilling shaft in center drive type rotary tiller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5203979A JPS55144801A (en) | 1979-04-28 | 1979-04-28 | Tilling shaft in center drive type rotary tiller |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS55144801A JPS55144801A (en) | 1980-11-12 |
| JPS6132921B2 true JPS6132921B2 (en) | 1986-07-30 |
Family
ID=12903666
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5203979A Granted JPS55144801A (en) | 1979-04-28 | 1979-04-28 | Tilling shaft in center drive type rotary tiller |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS55144801A (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5944220U (en) * | 1982-09-17 | 1984-03-23 | ヤンマー農機株式会社 | Leek digging device |
| JPH0514144Y2 (en) * | 1986-06-30 | 1993-04-15 |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4916405U (en) * | 1972-05-19 | 1974-02-12 | ||
| JPS4927048U (en) * | 1972-06-06 | 1974-03-08 | ||
| JPS5234371B2 (en) * | 1972-04-13 | 1977-09-02 | ||
| JPS5433309B2 (en) * | 1973-11-02 | 1979-10-19 |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5234371U (en) * | 1975-08-30 | 1977-03-10 | ||
| JPS5433309U (en) * | 1977-08-10 | 1979-03-05 |
-
1979
- 1979-04-28 JP JP5203979A patent/JPS55144801A/en active Granted
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5234371B2 (en) * | 1972-04-13 | 1977-09-02 | ||
| JPS4916405U (en) * | 1972-05-19 | 1974-02-12 | ||
| JPS4927048U (en) * | 1972-06-06 | 1974-03-08 | ||
| JPS5433309B2 (en) * | 1973-11-02 | 1979-10-19 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS55144801A (en) | 1980-11-12 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US4778012A (en) | Rotary tilling and grass cutting device | |
| US4164259A (en) | Soil cultivating implements | |
| JPS6049441B2 (en) | rotating halo | |
| JPS6132921B2 (en) | ||
| JPS596802A (en) | Plough instrument | |
| US4658910A (en) | Garden tiller plow tine assembly | |
| US4151885A (en) | Soil cultivating implements | |
| GB2145913A (en) | Agricultural ground rollers | |
| JPH0238161B2 (en) | ||
| JPH0416961Y2 (en) | ||
| JPS586247Y2 (en) | Agricultural tractor work equipment coupling device | |
| JPS5936964Y2 (en) | weeding work vehicle | |
| JPH0441762Y2 (en) | ||
| JP2521905Y2 (en) | Center drive type tillage device | |
| JPH0310801Y2 (en) | ||
| JPH052005Y2 (en) | ||
| JPS5823202Y2 (en) | Koun Rotary | |
| JPS5929450Y2 (en) | Grass cutting rotor | |
| JPH0438648Y2 (en) | ||
| JPS627042Y2 (en) | ||
| JPS6239603Y2 (en) | ||
| JPS6239609Y2 (en) | ||
| JPS6239602Y2 (en) | ||
| JP2701123B2 (en) | Farm cultivator | |
| JPH0545643Y2 (en) |