JPS6135701A - Biaxial type rotary plow apparatus - Google Patents
Biaxial type rotary plow apparatusInfo
- Publication number
- JPS6135701A JPS6135701A JP15659284A JP15659284A JPS6135701A JP S6135701 A JPS6135701 A JP S6135701A JP 15659284 A JP15659284 A JP 15659284A JP 15659284 A JP15659284 A JP 15659284A JP S6135701 A JPS6135701 A JP S6135701A
- Authority
- JP
- Japan
- Prior art keywords
- shaft
- claw
- soil
- circumferential speed
- crushing
- 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.)
- Granted
Links
- 210000000078 claw Anatomy 0.000 claims description 40
- 239000002689 soil Substances 0.000 description 27
- 230000005540 biological transmission Effects 0.000 description 4
- 230000035699 permeability Effects 0.000 description 4
- 239000010902 straw Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 241000272470 Circus Species 0.000 description 1
- 241001063191 Elops affinis Species 0.000 description 1
- 235000002756 Erythrina berteroana Nutrition 0.000 description 1
- HKPHPIREJKHECO-UHFFFAOYSA-N butachlor Chemical compound CCCCOCN(C(=O)CCl)C1=C(CC)C=CC=C1CC HKPHPIREJKHECO-UHFFFAOYSA-N 0.000 description 1
- 230000003292 diminished effect Effects 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 238000007790 scraping Methods 0.000 description 1
- 239000010802 sludge Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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
【発明の詳細な説明】
（イ）産業上の利用分野
本発明は農用トラクターに装着するロータリー耕耘装置
のうち、ロータリー耕耘爪軸を前後に２軸設け、前部の
軸をダウンカット耕耘番こよる荒起し爪軸とし、後部の
軸をアップカット耕耘による砕土爪とした２軸形ロータ
リー耕耘装置の最適周速比に関するものである。Detailed Description of the Invention (a) Industrial Application Field The present invention is a rotary tiller installed on an agricultural tractor, in which two rotary tiller claw shafts are provided at the front and rear, and the front shaft is a down-cut tiller. This invention relates to the optimum circumferential speed ratio of a two-shaft rotary tiller, in which the rear shaft is used as a rough-raising claw shaft, and the rear shaft is used as a soil crushing claw for up-cut tilling.
（ロ）従来技術
これまでにも同一出願人による２軸形ロータリー耕耘装
置に関する出願がなされているが、１軸の荒起し爪が大
径のダウンカット耕耘爪であシ、２軸の砕土爪が小径の
アップカット耕耘爪であ）、砕土爪の方が高速回転をし
ていると規定しただけで、実際の爪先端における周速の
関係については触れられていなかったのである。(B) Prior art There have been applications filed by the same applicant regarding two-shaft rotary tilling devices, but one shaft has a roughing claw with a large diameter down-cut tilling claw, and two shafts have a soil crushing claw. It only stipulated that the claws were up-cut tilling claws with a small diameter) and that the crushing claws rotated at a higher speed, but did not mention the actual relationship between the circumferential speed at the tip of the claw.
（ハ）発明が解決しようとする問題点
本発明は、２軸形ロータリーの使用目的であるところの
、理想の土壌状態を作ること、及び上層は細粒土、下層
は粗粒土の理想的な土層を作ることを探究して、その状
態を得るに最適の周速比が存在することを見出したもの
である。(c) Problems to be solved by the invention The purpose of the present invention is to create an ideal soil condition, which is the purpose of using a biaxial rotary, and to create an ideal soil condition in which the upper layer is fine-grained soil and the lower layer is coarse-grained soil. They explored the possibility of creating a soil layer that would create a suitable soil layer, and discovered that there is an optimal circumferential speed ratio to achieve this condition.
に）問題を解決する為の手段
本発明の目的は以上の如くであシ、該目的を達成する為
の構成を説明すると。B) Means for Solving the Problems The objects of the present invention are as described above, and the structure for achieving the objects will now be explained.
１軸を大径の荒起し爪とし、２軸を小径の砕土爪とした
２軸形ロータリー耕耘装置において、１軸の爪の周速と
、２ｓの爪の周速との比を１対工ないし１対２の範囲内
としたものである。In a two-shaft rotary tiller with one shaft having a large diameter roughing claw and the second shaft having a small diameter soil crushing claw, the ratio of the circumferential speed of the first shaft claw to the circumferential speed of the 2s claw is 1:1. The ratio is within the range of 1 to 2.
（→ 実施例と作用
本発明の目的・作用は以上の如くであ夛、次に添付の図
面に示した実施例の構成に基づいて説明すると。(→ Embodiments and Functions The objects and functions of the present invention have been described above, and will now be explained based on the structure of the embodiments shown in the attached drawings.
第１図は２軸形ロータリー耕耘装置の側面図であり、同
時にデプスコントロールをも可能とした構成が示されて
いる。FIG. 1 is a side view of a two-shaft rotary tiller, showing a configuration that also allows depth control.
第２図は同じく２軸形ロータリー耕耘装置であシ、側面
一部所面図である。FIG. 2 is also a two-shaft rotary tiller, and is a partial side view.
第３図は周速比と２軸形ロータリー耕耘装置の性能の関
係を示すグラフである。FIG. 3 is a graph showing the relationship between the circumferential speed ratio and the performance of the two-shaft rotary tiller.
第１図から説明すると。Let me explain from Figure 1.
第１図は２軸形ロータリー耕耘装置にデプスコントロー
ル装置が可能とされておシ、デプスホイールが外されて
いる。故にデプスコントロールとしてはりャカバー（９
）にて耕深の大小を感知し、センサーアーム（ハ）から
センサーリンク例を介して、フィードバックワイヤーを
引張り、リフトアーム（４）を制御するコントロールバ
ルブのアームＩ２！］）を前後に回動するのである。FIG. 1 shows a two-shaft rotary tiller equipped with a depth control device, with the depth wheel removed. Therefore, as a depth control, a harrier cover (9
), the control valve arm I2 senses the depth of plowing and pulls the feedback wire from the sensor arm (c) via the sensor link example to control the lift arm (4)! ]) rotates back and forth.
この一連の動きによシ耕深が深すぎるとリフトアーム曽
が上昇回動し、耕深が浅すぎるとリフトアーム（４）が
下降回動し、リフトリンク（至）、ロアリンクｕｅを介
して２Ｎ＠形ロータリー耕耘装置を昇降している。■は
トップリンクであシ、トップリンクマストａ滲に枢結さ
れている。Through this series of movements, if the plowing depth is too deep, the lift arm (4) will rotate upward, and if the plowing depth is too shallow, the lift arm (4) will rotate downward, and the The 2N @ type rotary tiller is being raised and lowered by ■ is the top link, which is pivotally connected to the top link mast a.
Ｌｌｌ） ハポシションコントロールバー、シハテプス
コントロールレバーである。Lll) Haposition control bar, Shihateps control lever.
農用トラクターのＰＴＯ軸の回転がユニバーサルジヨイ
ントにてロータリーギヤボックス（６）の入力軸−へ入
力され、メインビーム内の動力伝達軸（至）よシ荒起し
耕耘爪の軸である１軸を駆動するチェーンケース国に入
力されている。同時に動力伝達軸（至）の先端はベベル
ギヤボックス（ト）内に伝えられ、ジヨイントカバー１
７）内のユニバーサルジヨイント軸Ｑ８１を介して、２
軸のベベルギヤボックス（ト）へ動力を伝え２軸（４）
が回転されている。（１）は荒起し爪、（３）は１軸、
（２）は砕土爪、（４）は第２軸である。The rotation of the PTO shaft of the agricultural tractor is input to the input shaft of the rotary gear box (6) at the universal joint, and the power transmission shaft (to) in the main beam is connected to one shaft, which is the axis of the tiller claws. The driving chain case has been entered into the country. At the same time, the tip of the power transmission shaft (to) is transmitted into the bevel gear box (to), and the joint cover 1
7) through the universal joint shaft Q81 in
Power is transmitted to the shaft bevel gear box (G) and the two shafts (4)
is being rotated. (1) is a rough raising claw, (3) is a single shaft,
(2) is the crushing claw, and (4) is the second shaft.
荒起し爪（１）の回転外周を囲う耕耘カバー田の後端に
枢支軸（ハ）にて砕土耕耘装置を枢支している。A crushing soil cultivating device is pivotally supported by a pivot shaft (c) at the rear end of the tilling cover field that surrounds the rotating outer periphery of the roughing claw (1).
そして第１図の２軸ハンドル＋２０１又は第２図の調節
ピン＠にて吊下げ杆（社）を上下して、砕土爪の下端の
位置を調整可能としている。Ｃｌ１ｌは砕土爪カバーで
あシ、その下面に泥付着防止布啼と、レーキ杆（５）が
固着されている。又、砕土・爪カバーａυの後端にリヤ
カバー（９）が枢支されている。リヤカバー（９）はハ
ンガーロッド（１０）を介してデプスフレーム（７）に
バネにて付勢され係止されている。（１９はデプスコン
トロールを行わない場合の為のデプスホイールである。The position of the lower end of the crushing claw can be adjusted by moving the hanging rod up and down using the two-axis handle +201 shown in FIG. 1 or the adjustment pin @ shown in FIG. Cl1l is a crushed soil claw cover, and a mud adhesion prevention fabric and a rake rod (5) are fixed to the lower surface of the cover. Further, a rear cover (9) is pivotally supported at the rear end of the crushed soil/claw cover aυ. The rear cover (9) is biased and locked by a spring to the depth frame (7) via a hanger rod (10). (19 is a depth wheel for when depth control is not performed.
デプスフレーム（７）はフレームハンドルα（至）の回
動によシ上下動される。ａΦはトップリンクマストであ
る。The depth frame (7) is moved up and down by rotating the frame handle α. aΦ is the top link mast.
尚、３りは爪に巻きついた藁等をとる掻き取り板、（８
）は砕土装置側板である。該砕土装置側板（８）に２軸
（４）やベベルギヤボックス（至）が枢支されている。In addition, 3 is a scraping board to remove straw etc. wrapped around the nail, (8
) is the side plate of the soil crushing device. Two shafts (4) and a bevel gear box (to) are pivotally supported on the side plate (8) of the soil crushing device.
第２図にて示す如く、１軸（３）の荒起し爪（１）はな
た爪によ多構成されて、第２図において反時計方向即ち
ダウンカット方向に回転している。２軸（４）に設けた
砕土爪（２）は板爪によ多構成された巴形の爪であシ多
数本の爪が角度を変えて締付は固定されている。回転方
向は時計回シであシ即ちアップカット耕耘である。As shown in FIG. 2, the single-shaft (3) rough-raising claw (1) is composed of multiple machete claws, and rotates counterclockwise, that is, in the down-cutting direction in FIG. The crushing claws (2) provided on the two shafts (4) are tomoe-shaped claws composed of multiple plate claws, and the angles of the multiple claws are changed so that the clamping is fixed. The direction of rotation is clockwise, that is, upcut tilling.
（へ）発明の作用
本発明はこの荒起し爪（１）の爪外周先端の周速と、砕
土爪（２）の爪外周先端の周速とを対比したものである
。次に爪の径を変えた場合と、ＰＴＯ変運段の変更に伴
なう実施例の画成を示すと。(F) Function of the Invention The present invention compares the circumferential speed of the tip of the outer periphery of the rough raising claw (1) with the circumferential speed of the tip of the outer periphery of the soil crushing claw (2). Next, we will show the definition of an embodiment when the diameter of the pawl is changed and the PTO gear is changed.
爪の回転数は農用トラクターのＰＴＯ変速装置によシ、
入力軸出に入ってくる回転数が変化するとそれぞれの変
速比に応じて変わバ更に１軸と２軸の増速比があるので
これによっても変化するのである。The number of rotations of the claw depends on the PTO transmission of the agricultural tractor.
When the rotational speed coming in from the input shaft changes, it changes depending on the respective speed ratios.There are also speed increasing ratios for the 1st and 2nd shafts, so this also changes.
これらの１軸と２軸の回転数の変化に対しても荒起し爪
の周速と、砕土爪の周速の比を１対１がら１対２の範囲
内にするものである。The ratio of the circumferential speed of the roughing claw to the circumferential speed of the soil crushing claw is kept within the range of 1:1 to 1:2 even when the rotational speeds of the one shaft and the two shafts change.
第３図に示すのは、砕土爪周速／荒起し爪周速が１０か
ら２．０に変わる間の各性能の変化を示すグラフであり
、（りは土層の深さを示す曲線であシ、土層のうち上層
は細粒土となｐ１下層は粗粒土となっている。周速比を
大きくすると土層の団粒構造が発生し、間に空隙が増え
て土層が深くなるのである。Figure 3 is a graph showing the changes in each performance while the circumferential speed of the soil crushing claw/the circumferential speed of the roughing claw changes from 10 to 2.0. The upper layer of the soil layer is fine-grained soil, and the lower layer of P1 is coarse-grained soil.When the circumferential velocity ratio is increased, the aggregate structure of the soil layer occurs, and the voids increase between the soil layers. becomes deeper.
（Ｂ）は埋没性でめ９、耕耘前の圃場表面にあった藁く
ずや株が砕土爪による砕土の下に穏れて埋没する率を示
しておシ、周速比が犬になると更によくなるのである。(B) shows the burying property (Me9), which shows the rate at which straw waste and stumps on the field surface before tilling are gently buried under the crushed soil by the soil crushing claws, and it becomes worse when the circumferential velocity ratio becomes dog. It will get better.
しかしこれに対し、所要馬力曲線（Ｃ）が変化し、所要
馬力（Ｃ）は周速比がＬＯから２．０までの間は比いが
その両側では馬力が増加傾向にあるのである。However, on the other hand, the required horsepower curve (C) changes, and although the required horsepower (C) is not the same between the circumferential speed ratios of LO and 2.0, the horsepower tends to increase on both sides thereof.
又、細土性の曲線（Ｄ）を見た場合に周速比２．０を超
えると急に砕土の粒子が細かくなシ過ぎヘドロ状態とな
シ、団粒構造が失なわれ通気性・透水性が悪くなシ、従
って作物の生育に悪影響を及ぼすことが示されている。Also, when looking at the fine soil property curve (D), if the peripheral velocity ratio exceeds 2.0, the particles of crushed soil suddenly become too fine and turn into a sludge state, and the aggregate structure is lost, resulting in poor air permeability. It has been shown that water permeability is poor and, therefore, it has a negative impact on crop growth.
これらの性能を総合的に見た場合に１＠と２軸の爪の先
端の周速比が１対１から１対２の範囲が最も高性能が得
られるのである。When looking at these performances comprehensively, the highest performance can be obtained when the peripheral speed ratio of the tips of the 1@ and 2-axis claws is in the range of 1:1 to 1:2.
（ト）発明の効果
本発明は以上の如く構成したので次のような効果を萎す
るものである。(G) Effects of the Invention Since the present invention is constructed as described above, the following effects are diminished.
即ち周速比をこの範囲内に設定することによシ、第１に
所要馬力が性能に比較してそれほど大きくならないこと
。即ち性能の割には低馬力で駆動できるのである。That is, by setting the circumferential speed ratio within this range, firstly, the required horsepower does not become so large compared to the performance. In other words, it can be driven with low horsepower considering its performance.
第２に砕土後の粒子が余シ小さくなシ過ぎることがなく
、適当に通気性を持った透水性のよい団粒構造が保てる
ことである。Second, the particles after crushing do not remain too small, and a granular structure with appropriate air permeability and good water permeability can be maintained.
第３にそれでいて土層の深さや、表面の藁くず等の埋没
性も最高に近い性能が得られるのである。Thirdly, it provides near-optimal performance in terms of the depth of the soil layer and the buryability of straw debris on the surface.
第４に過負荷時における歯車やチェーン等の動力伝達系
の破壊を予防することができるのである。Fourthly, it is possible to prevent damage to power transmission systems such as gears and chains during overload.
第１図は２軸形ロータリー耕耘装置の側面図であシ、同
時にデプスコントロールをも可能とした状態の図面。第
２図は同じく２軸形ロータリー耕耘装置でメジ、側面一
部所面図。第３図は周速比と２軸形ロータリー耕耘装置
の性能の関係を示すグラフである。Figure 1 is a side view of a two-axis rotary tiller, and shows a state in which depth control is also possible. Figure 2 shows a partial side view of the same two-shaft rotary tiller. FIG. 3 is a graph showing the relationship between the circumferential speed ratio and the performance of the two-shaft rotary tiller.
Claims (1)
２軸形ロータリー耕耘装置において、１軸の爪の周速と
、２軸の爪の周速との比を１対１ないし１対２の範囲内
にしたことを特徴とする２軸形ロータリー耕耘装置。In a two-shaft rotary tiller with one shaft having a large-diameter roughing claw and the second shaft having a small-diameter crushing claw, the ratio of the circumferential speed of the first shaft claw to the second shaft claw is 1. A two-shaft rotary tiller characterized in that the ratio is within the range of 1:1 to 1:2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15659284A JPS6135701A (en) | 1984-07-26 | 1984-07-26 | Biaxial type rotary plow apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15659284A JPS6135701A (en) | 1984-07-26 | 1984-07-26 | Biaxial type rotary plow apparatus |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6135701A true JPS6135701A (en) | 1986-02-20 |
| JPH0458281B2 JPH0458281B2 (en) | 1992-09-17 |
Family
ID=15631125
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP15659284A Granted JPS6135701A (en) | 1984-07-26 | 1984-07-26 | Biaxial type rotary plow apparatus |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6135701A (en) |
Families Citing this family (35)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1808152B1 (en) | 2003-02-12 | 2012-08-29 | The Procter and Gamble Company | Absorbent Core for an Absorbent Article |
| ES2627029T3 (en) | 2003-02-12 | 2017-07-26 | The Procter & Gamble Company | Absorbent core for an absorbent article |
| PL2478883T3 (en) | 2007-06-18 | 2017-01-31 | The Procter And Gamble Company | Disposable absorbent article with substantially continuously distributed absorbent particulate polymer material and method |
| EP2157956B1 (en) | 2007-06-18 | 2013-07-17 | The Procter and Gamble Company | Disposable absorbent article with sealed absorbent core with substantially continuously distributed absorbent particulate polymer material |
| CA2722538C (en) | 2008-04-29 | 2014-08-12 | The Procter & Gamble Company | Process for making an absorbent core with strain resistant core cover |
| EP2329803B1 (en) | 2009-12-02 | 2019-06-19 | The Procter & Gamble Company | Apparatus and method for transferring particulate material |
| CA2838980A1 (en) | 2011-06-10 | 2012-12-13 | The Procter & Gamble Company | Absorbent core for disposable absorbent articles |
| ES2484695T5 (en) | 2011-06-10 | 2018-02-13 | The Procter & Gamble Company | Disposable diaper that has a reduced joint between the absorbent core and the backing sheet |
| ES2459724T3 (en) | 2011-06-10 | 2014-05-12 | The Procter & Gamble Company | Method and apparatus for making absorbent structures with absorbent material |
| SG194984A1 (en) | 2011-06-10 | 2013-12-30 | Procter & Gamble | Absorbent structure for absorbent articles |
| EP2717820B2 (en) | 2011-06-10 | 2022-09-07 | The Procter & Gamble Company | Absorbent structure for absorbent articles |
| EP2532329B1 (en) | 2011-06-10 | 2018-09-19 | The Procter and Gamble Company | Method and apparatus for making absorbent structures with absorbent material |
| CA2838951C (en) | 2011-06-10 | 2019-07-16 | The Procter & Gamble Company | An absorbent core for disposable diapers comprising longitudinal channels |
| DE202013012607U1 (en) | 2012-11-13 | 2017-11-19 | The Procter & Gamble Company | Absorbent article with channels and signals |
| US9216118B2 (en) | 2012-12-10 | 2015-12-22 | The Procter & Gamble Company | Absorbent articles with channels and/or pockets |
| EP2740449B1 (en) | 2012-12-10 | 2019-01-23 | The Procter & Gamble Company | Absorbent article with high absorbent material content |
| US10639215B2 (en) | 2012-12-10 | 2020-05-05 | The Procter & Gamble Company | Absorbent articles with channels and/or pockets |
| US8979815B2 (en) | 2012-12-10 | 2015-03-17 | The Procter & Gamble Company | Absorbent articles with channels |
| US9216116B2 (en) | 2012-12-10 | 2015-12-22 | The Procter & Gamble Company | Absorbent articles with channels |
| EP2740450A1 (en) | 2012-12-10 | 2014-06-11 | The Procter & Gamble Company | Absorbent core with high superabsorbent material content |
| PL2740452T3 (en) | 2012-12-10 | 2022-01-31 | The Procter & Gamble Company | Absorbent article with high absorbent material content |
| ES2655690T3 (en) | 2013-06-14 | 2018-02-21 | The Procter & Gamble Company | Absorbent article and absorbent core formation channels when wet |
| US9987176B2 (en) | 2013-08-27 | 2018-06-05 | The Procter & Gamble Company | Absorbent articles with channels |
| US9789011B2 (en) | 2013-08-27 | 2017-10-17 | The Procter & Gamble Company | Absorbent articles with channels |
| US11207220B2 (en) | 2013-09-16 | 2021-12-28 | The Procter & Gamble Company | Absorbent articles with channels and signals |
| EP2851048B1 (en) | 2013-09-19 | 2018-09-05 | The Procter and Gamble Company | Absorbent cores having material free areas |
| US9789009B2 (en) | 2013-12-19 | 2017-10-17 | The Procter & Gamble Company | Absorbent articles having channel-forming areas and wetness indicator |
| EP2905001B1 (en) | 2014-02-11 | 2017-01-04 | The Procter and Gamble Company | Method and apparatus for making an absorbent structure comprising channels |
| EP2949300B1 (en) | 2014-05-27 | 2017-08-02 | The Procter and Gamble Company | Absorbent core with absorbent material pattern |
| RU2017133027A (en) | 2015-03-16 | 2019-04-16 | Дзе Проктер Энд Гэмбл Компани | Rugged Absorbent Products |
| CA2985807A1 (en) | 2015-05-12 | 2016-11-17 | The Procter & Gamble Company | Absorbent article with improved core-to-backsheet adhesive |
| JP6743057B2 (en) | 2015-05-29 | 2020-08-19 | ザ プロクター アンド ギャンブル カンパニーＴｈｅ Ｐｒｏｃｔｅｒ ＆ Ｇａｍｂｌｅ Ｃｏｍｐａｎｙ | Absorbent article having channels and wetness indicators |
| EP3167859B1 (en) | 2015-11-16 | 2020-05-06 | The Procter and Gamble Company | Absorbent cores having material free areas |
| EP3238678B1 (en) | 2016-04-29 | 2019-02-27 | The Procter and Gamble Company | Absorbent core with transversal folding lines |
| EP3238676B1 (en) | 2016-04-29 | 2019-01-02 | The Procter and Gamble Company | Absorbent core with profiled distribution of absorbent material |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS53121301U (en) * | 1977-03-03 | 1978-09-27 |
-
1984
- 1984-07-26 JP JP15659284A patent/JPS6135701A/en active Granted
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS53121301U (en) * | 1977-03-03 | 1978-09-27 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0458281B2 (en) | 1992-09-17 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JPS6135701A (en) | Biaxial type rotary plow apparatus | |
| US4778012A (en) | Rotary tilling and grass cutting device | |
| JPS6130522B2 (en) | ||
| JPH038161B2 (en) | ||
| US2229290A (en) | Earth working machine | |
| JPH1042603A (en) | Ordinarily and reversely rotatable power tiller | |
| JPS58175402A (en) | Soil crushing rotary apparatus | |
| GB2065195A (en) | Improvements in or relating to trench-digging machines | |
| JPH0215164B2 (en) | ||
| JPH0675441B2 (en) | Forward / reverse rotary device | |
| JPS6219121Y2 (en) | ||
| US987171A (en) | Agricultural implement. | |
| JPS59140801A (en) | Drive apparatus of rotary shaft in walking type cultivator | |
| US1068598A (en) | Tractor. | |
| JPS6019405A (en) | Biaxial rotary plowing apparatus | |
| JPH0471481B2 (en) | ||
| JPS58158105A (en) | Drive apparatus for inclining cultivation part in walking type agricultural cultivator | |
| KR900011098Y1 (en) | Power transmission apparatus between excavator and tractor | |
| JPS6016501A (en) | Deep plowing apparatus in walking type agricultural plowing vehicle | |
| JPS59213302A (en) | Center drive type plowing part in walking type agricultural vehicle | |
| JPS62118803A (en) | Plowing and reaping apparatus | |
| JPS59216501A (en) | Reversible drive apparatus of rotary shaft in center drive type plowing part of walking type agricultural vehicle | |
| JPH0458285B2 (en) | ||
| JPS5939841Y2 (en) | Self-propelled management machine | |
| JPS5819983Y2 (en) | agricultural machinery |