JPH0884505A - Rotary plowing machine - Google Patents
Rotary plowing machineInfo
- Publication number
- JPH0884505A JPH0884505A JP24849794A JP24849794A JPH0884505A JP H0884505 A JPH0884505 A JP H0884505A JP 24849794 A JP24849794 A JP 24849794A JP 24849794 A JP24849794 A JP 24849794A JP H0884505 A JPH0884505 A JP H0884505A
- Authority
- JP
- Japan
- Prior art keywords
- rear cover
- fulcrum shaft
- rotary
- rocking lever
- view
- 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
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 10
- 239000010959 steel Substances 0.000 claims abstract description 10
- 239000000725 suspension Substances 0.000 claims description 26
- 210000000078 claw Anatomy 0.000 claims description 15
- 239000013013 elastic material Substances 0.000 claims description 2
- 238000005192 partition Methods 0.000 description 5
- 239000002689 soil Substances 0.000 description 4
- 230000007246 mechanism Effects 0.000 description 3
- 239000010902 straw Substances 0.000 description 3
- 241000196324 Embryophyta Species 0.000 description 2
- 230000035939 shock Effects 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000012354 overpressurization Methods 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 229920003051 synthetic elastomer Polymers 0.000 description 1
- 229920003002 synthetic resin Polymers 0.000 description 1
- 239000000057 synthetic resin Substances 0.000 description 1
- 239000005061 synthetic rubber Substances 0.000 description 1
- 238000003971 tillage Methods 0.000 description 1
Landscapes
- Soil Working Implements (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は耕耘作業を行うロータリ
爪をトラクタによって牽引するロータリ耕耘装置に関す
る。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a rotary tilling device for pulling a rotary pawl for cultivating work by a tractor.
【０００２】[0002]
【従来の技術】従来、トラクタや耕耘機の後部にロータ
リ爪を付設し、このロータリ爪によって耕耘作業を行う
が、耕耘作業時の走行速度を速くしてできるだけ早く作
業を終了することが望まれる。2. Description of the Related Art Conventionally, a rotary pawl is attached to the rear of a tractor or a cultivator, and the rotary pawl is used for cultivating work. However, it is desirable to increase the traveling speed during the cultivating work and complete the work as soon as possible. .
【０００３】[0003]
【発明が解決しようとする課題】しかし乍ら、走行速度
を早くすることにより、ロータリ爪によって耕起した土
の抵抗がリヤカバーに大きく作用し、耕耘後の土表面が
乱れて凹凸が形成され易い問題があった。However, by increasing the traveling speed, the resistance of the soil cultivated by the rotary claws largely acts on the rear cover, and the soil surface after plowing is disturbed and unevenness is easily formed. There was a problem.
【０００４】[0004]
【課題を解決するための手段】然るに、本発明は、ロー
タリ爪上側のロータリカバー後端に第１支点軸を介して
鋼板製第１リヤカバーを上下方向に揺動自在に連結さ
せ、第１リヤカバー後端に弾性材製第２リヤカバー前端
を固定させ、第２リヤカバー後端に鋼板製第３リヤカバ
ー前端を固定させると共に、第１リヤカバー後端部の第
２支点軸と第３リヤカバー前端部の第３支点軸をリンク
によって連結させ、第３支点軸と略同軸上に第４支点軸
を設け、第４支点軸に第１吊下ロッド下端を連結させ、
第３リヤカバー後端部の第５支点軸に第２吊下ロッド下
端を連結させ、第１リヤカバーの支持体に第１及び第２
吊下ロッド上端側を昇降自在に取付け、各吊下ロッドと
第３リヤカバーによって側面視三角形を形成させ、また
第２及び第３及び第５支点軸を結ぶ線によって側面視三
角形を形成させたもので、第２支点軸または第３支点軸
を中心に第３リヤカバーを上方移動させ、第２支点軸及
び支持体の吊下ロッド連結部を支点とした両てこ機構の
動作によって第３リヤカバーを後上方に移動させるか
ら、第３リヤカバー両側部が平面視で前後移動するフロ
ーティング動作を行わせ得、第３リヤカバーのフローテ
ィング動作によってロータリ爪耕耘面の凹凸を従来より
も均平にし得、耕耘作業時の走行速度を速くしても耕耘
面を従来の低速走行時と同様に均平に形成し得るもので
ある。However, according to the present invention, the first rear cover made of steel plate is swingably connected in the vertical direction to the rear end of the rotary cover on the upper side of the rotary claw via the first fulcrum shaft. An elastic second rear cover front end is fixed to the rear end, a steel plate third rear cover front end is fixed to the second rear cover rear end, and the second fulcrum shaft of the first rear cover rear end and the third rear cover front end are fixed. 3 fulcrum shafts are connected by a link, a 4th fulcrum shaft is provided substantially coaxially with the 3rd fulcrum shaft, and the 1st suspension rod lower end is connected to the 4th fulcrum shaft,
The lower end of the second suspension rod is connected to the fifth fulcrum shaft at the rear end of the third rear cover, and the first and second support members are attached to the support member of the first rear cover.
The upper end side of the suspension rod is attached so as to be able to move up and down, and each suspension rod and the third rear cover form a side view triangle, and the side view triangle is formed by a line connecting the second, third, and fifth fulcrum axes. Then, the third rear cover is moved upward about the second fulcrum shaft or the third fulcrum shaft, and the third rear cover is moved rearward by the operation of the lever mechanism with the second fulcrum shaft and the suspension rod connecting portion of the support as the fulcrum. Since it is moved upward, it is possible to perform a floating operation in which both sides of the third rear cover move back and forth in a plan view, and the floating operation of the third rear cover can make the unevenness of the rotary pawl cultivating surface more even than before, and during cultivating work. Even if the traveling speed is increased, the cultivated surface can be formed evenly as in the conventional low speed traveling.
【０００５】また、第５支点軸と第１リヤカバーの支持
体間に略一定圧となる付勢手段を連結させたもので、大
きな初期荷重で小さなバネ定数が得られかつストローク
も大きく形成できる略一定圧となる付勢手段によって第
３リヤカバーを支持させるから、第３リヤカバーの均等
な加圧によって耕耘面を均し得、第３リヤカバーの過加
圧による土のねりつけを防止し得ると共に、第３リヤカ
バーのあばれ防止並びに衝撃吸収などを容易に行い得る
ものである。Further, the fifth supporting shaft and the supporting member of the first rear cover are connected to a biasing means for providing a substantially constant pressure, and a small spring constant can be obtained with a large initial load and a large stroke can be formed. Since the third rear cover is supported by the biasing means that provides a constant pressure, the cultivating surface can be leveled by evenly pressing the third rear cover, and the soil can be prevented from being sprinkled by overpressurizing the third rear cover. The third rear cover can be easily prevented from being deflated and the shock can be absorbed.
【０００６】[0006]
【実施例】以下、本発明の実施例を図面に基づいて詳述
する。図１はリヤカバー部の側面図、図２は全体の側面
図、図３は同平面図、図４はロータリ爪部の側面図、図
５はリヤカバーのフローティング説明図であり、トラク
タ（１）にロワリンク（２）を介してサイドドライブ型
のロータリ耕耘本体（３）を装着させるもので、中央に
ギアボックス（４）を配置し、ユニバーサルジョイント
付ドライブ軸（５）を介してトラクタ（１）のＰＴＯ軸
（６）と連結して動力を伝えるようにしている。前記ギ
アボックス（４）側面より両側方にビーム（７）を突出
し、該ビーム（７）のそれぞれの中途部に支持プレート
（８）を固設し、該支持プレート（８）の前端にはロワ
リンク（２）を枢結するピンを突設し、後端にはデプス
フレーム（９）の前端を枢支し、更に、マスト（１０）
の前端にトップリンク（１１）の枢結部を構成してい
る。Embodiments of the present invention will now be described in detail with reference to the drawings. 1 is a side view of the rear cover part, FIG. 2 is a side view of the whole, FIG. 3 is a plan view of the same, FIG. 4 is a side view of the rotary pawl part, and FIG. 5 is a floating explanatory view of the rear cover. The side drive type rotary tiller main body (3) is mounted via the lower link (2), the gear box (4) is arranged in the center, and the tractor (1) is connected via the drive shaft (5) with a universal joint. It is connected to the PTO shaft (6) to transmit power. Beams (7) are projected to both sides from the side surface of the gear box (4), support plates (8) are fixedly installed in the middle of each of the beams (7), and a lower link is provided at a front end of the support plate (8). A pin that pivotally connects (2) is provided in a protruding manner, and the front end of the depth frame (9) is pivotally supported at the rear end, and further the mast (10).
The top end of the top link (11) has a pivotal connection.
【０００７】前記ビーム（７）の外側端にチェーンケー
ス（１２）上部が固設され、該チェーンケース（１２）
下部に耕耘爪軸（１３）が横架され、該耕耘爪軸（１
３）上にナタ爪よりなる多数のロータリ爪（１４）…が
側面視で放射状に植設されると共に、該ロータリ爪（１
４）の回転軌跡上方がロータリカバー（１５）によって
覆われ、両側はサイドカバー（１６）によって覆われて
いる。そして、該耕耘爪軸（１３）はギアボックス
（４）内のギア、ビーム（７）内の伝動軸、チェーンケ
ース（１２）内のスプロケット及びチェーンを介して駆
動され、ロータリ爪（１４）…が回転されることによっ
て耕耘ができるようにしている。An upper part of the chain case (12) is fixed to the outer end of the beam (7), and the chain case (12) is fixed.
A tilling claw shaft (13) is horizontally installed at the lower part, and the tilling claw shaft (1
3) A large number of rotary claws (14) ...
The upper part of the rotation path of 4) is covered by the rotary cover (15), and both sides are covered by the side covers (16). The tiller claw shaft (13) is driven via the gear in the gear box (4), the transmission shaft in the beam (7), the sprocket and the chain in the chain case (12), and the rotary claw (14) ... It is made possible to cultivate by rotating the.
【０００８】そして、チェーンケース（１２）の上部内
側面より前方にプレート（１７）が固設され、該プレー
ト（１７）前端に支持杆（１８）が横架され、該支持杆
（１８）に取付プレート（１９）が固定され、該取付プ
レート（１９）に切断刃（２０）の上部が固定されてい
る。なお、切断刃（２０）を左右幅方向に４本装着して
いるが、ロータリ爪（１４）数本おきに切断刃（２０）
を配設することになる。また、切断刃（２０）の下部は
後方に湾曲させ、この下部を前記ロータリ爪（１４）の
回転軌跡の前部内に臨ませている。つまり、側面視にお
いて切断刃（２０）の下部がロータリ爪（１４）の回転
軌跡の前部でオーバーラップするように配置させると共
に、切断刃（２０）とロータリ爪（１４）の間隔は狭く
して残耕ができないようにしている。但し、ロータリ爪
（１４）とロータリ爪（１４）の全ての間に切断刃（２
０）を設けることはなく、前述のように耕耘抵抗となら
ないように適宜間隔をあけている。また、切断刃（２
０）の後面とロータリカバー（１５）の間には仕切板
（２１）が配設されている。即ち、該仕切板（２１）は
切断刃（２０）の背面に固設されており、仕切板（２
１）を耕耘カバー（１５）に接近させて、藁や雑草等が
入り込み絡み付かないようにしている。また、仕切板
（２１）は三角形状に構成されて、上部の辺はロータリ
カバー（１５）の内側の形状に合わせ、前部の辺は切断
刃（２０）の後面の形状に合わせて密着して固定できる
ようにし、後部の辺は円弧状として藁等を下方へ導く形
状としている。そして、仕切板（２１）の幅（板厚）は
切断刃（２０）の幅より狭くして、藁や雑草等が絡みつ
かないようにしている。A plate (17) is fixedly installed in front of the inner surface of the upper part of the chain case (12), and a supporting rod (18) is horizontally installed at the front end of the plate (17) and is attached to the supporting rod (18). The mounting plate (19) is fixed, and the upper part of the cutting blade (20) is fixed to the mounting plate (19). Although four cutting blades (20) are attached in the left-right width direction, the cutting blades (20) are arranged every few rotary pawls (14).
Will be installed. Further, the lower part of the cutting blade (20) is curved rearward, and this lower part is exposed in the front part of the rotation locus of the rotary claw (14). That is, in a side view, the lower part of the cutting blade (20) is arranged so as to overlap with the front part of the rotation trajectory of the rotary claw (14), and the interval between the cutting blade (20) and the rotary claw (14) is narrowed. I'm trying to prevent leftover cultivation. However, between the rotary claw (14) and the rotary claw (14), the cutting blade (2
0) is not provided, and as described above, the intervals are appropriately set so as not to cause tilling resistance. Also, the cutting blade (2
A partition plate (21) is arranged between the rear surface of the (0) and the rotary cover (15). That is, the partition plate (21) is fixed to the back surface of the cutting blade (20), and the partition plate (2)
1) is brought close to the tillage cover (15) so that straw, weeds, etc. do not get in and get entangled. Further, the partition plate (21) is formed in a triangular shape, the upper side of which fits the inner shape of the rotary cover (15) and the front side of which fits closely to the shape of the rear surface of the cutting blade (20). The rear side is arcuate and has a shape that guides straw and the like downward. The width (plate thickness) of the partition plate (21) is made narrower than the width of the cutting blade (20) so that straw, weeds, etc. do not get entangled.
【０００９】さらに、ロータリ爪（１４）上側のロータ
リカバー（１５）後端に第１支点軸（２２）を介して鋼
板製第１リヤカバー（２３）を上下方向に揺動自在に連
結させ、第１リヤカバー（２３）後端に合成樹脂または
ゴムなどの弾性材製第２リヤカバー（２４）前端を固定
させ、第２リヤカバー（２４）後端に鋼板製第３リヤカ
バー（２５）前端を固定させると共に、第１リヤカバー
（２４）後端部の第２支点軸（２６）と第３リヤカバー
（２５）前端部の第３支点軸（２７）を左右一対のリン
ク（２８）（２８）によって連結させ、第３支点軸（２
７）と略同軸上に第４支点軸（２９）を設け、第４支点
軸（２９）に第１吊下ロッド（３０）下端を連結させ、
第３リヤカバー（２５）後端部の第５支点軸（３１）に
左右一対の第２吊下ロッド（３２）下端を連結させ、第
１リヤカバー（２３）の支持体（３３）に第１及び第２
吊下ロッド（３０）（３２）上端側を昇降自在に取付
け、各吊下ロッド（３０）（３２）と第３リヤカバー
（２５）によって側面視三角形を形成させ、また第２及
び第３及び第５支点軸（２６）（２７）（３１）を結ぶ
線によって側面視三角形を形成させたもので、図１の如
く、第２支点軸（２６）または第３支点軸（２７）を中
心に第３リヤカバー（２５）を矢印（Ａ）及び（Ｂ）の
方向に上方移動させ、第２支点軸（２６）及び支持体
（３３）の吊下ロッド（３０）（３２）連結部を支点と
した両てこ機構の動作によって第３リヤカバー（２５）
を矢印（Ｃ）の方向に後上方に移動させ、図５の如く、
第３リヤカバー（２５）両側部が平面視で矢印（Ｄ）の
方向に前後移動するフローティング動作を行わせる。ま
た、第５支点軸（３１）と第１リヤカバー（２３）の支
持体（３３）間に略一定圧となる付勢手段である左右一
対のガスダンパ（３４）を連結させたもので、図６に示
す如く、大きな初期荷重で小さなバネ定数が得られかつ
ストロークも大きく形成できるガスダンパ（３４）によ
って第３リヤカバー（２５）を支持させ、図７のように
トラクタ（１）が左右に傾いても第３リヤカバー（２
５）の左右均等な加圧によって耕耘面を均すことができ
るように構成している。なお、付勢手段として、ガスダ
ンパ（３４）に代え、オイルダンパまたは多重コイルバ
ネなどを用いてもよい。Further, a steel plate first rear cover (23) is vertically swingably connected to the rear end of the rotary cover (15) above the rotary pawl (14) through a first fulcrum shaft (22), 1 The front end of the second rear cover (24) made of an elastic material such as synthetic resin or rubber is fixed to the rear end of the rear cover (23), and the front end of the steel plate third rear cover (25) is fixed to the rear end of the second rear cover (24). , A second fulcrum shaft (26) at the rear end of the first rear cover (24) and a third fulcrum shaft (27) at the front end of the third rear cover (25) are connected by a pair of left and right links (28), (28), Third fulcrum axis (2
7) is provided substantially coaxially with a fourth fulcrum shaft (29), the lower end of the first suspension rod (30) is connected to the fourth fulcrum shaft (29),
The lower ends of the pair of left and right second suspension rods (32) are connected to the fifth fulcrum shaft (31) at the rear end of the third rear cover (25), and the first and second support members (33) of the first rear cover (23) are connected. Second
The upper ends of the hanging rods (30) (32) are attached so as to be able to move up and down, and the hanging rods (30) (32) and the third rear cover (25) form a triangle in a side view. A triangle is formed in a side view by a line connecting the five fulcrum shafts (26), (27) and (31), and as shown in Fig. 1, the second fulcrum shaft (26) or the third fulcrum shaft (27) is used as a center. 3 Rear cover (25) is moved upward in the directions of arrows (A) and (B), and the second fulcrum shaft (26) and the suspension rod (30) (32) connecting portion of the support body (33) are used as fulcrums. The operation of the lever mechanism causes the third rear cover (25).
Is moved rearward and upward in the direction of the arrow (C), and as shown in FIG.
Floating operation is performed in which both sides of the third rear cover (25) move back and forth in the direction of arrow (D) in plan view. Further, a pair of left and right gas dampers (34), which are biasing means for providing a substantially constant pressure, are connected between the fifth fulcrum shaft (31) and the support body (33) of the first rear cover (23). As shown in Fig. 7, the third rear cover (25) is supported by the gas damper (34) that can obtain a small spring constant with a large initial load and can be formed with a large stroke, and even if the tractor (1) tilts left and right as shown in Fig. 7. 3rd rear cover (2
It is configured so that the tilling surface can be leveled by applying uniform pressure to the left and right in 5). As the biasing means, an oil damper or a multiple coil spring may be used instead of the gas damper (34).
【００１０】また、前記吊下ロッド（３０）（３２）上
端側を支持体（３３）…の軸受体（３５）…に遊嵌挿入
させ、軸受体（３５）…の上面側に当接するピン（３
６）…を前記ロッド（３０）（３２）に植設させ、前記
ロッド（３０）（３２）の下方抜出しを防ぎ、矢印
（イ）（ロ）（ハ）方向への第３リヤカバー（２５）の
移動を阻止すると共に、スプリング（３７）（３７）を
巻装させた左右一対のロッド（３８）（３８）下端を第
１リヤカバー（２８）上面に連結させ、前記ロッド（３
８）上端側をロータリカバー（１５）の支持体（３９）
に摺動自在に取付け、第１リヤカバー（２８）をスプリ
ング（３７）によって加圧するように構成している。Further, the upper end side of the suspension rods (30) (32) is loosely fitted and inserted into the bearing bodies (35) of the support bodies (33), and the pins are brought into contact with the upper surface side of the bearing bodies (35). (3
6) are planted in the rods (30) and (32) to prevent the rods (30) and (32) from being pulled out downward, and the third rear cover (25) in the directions of arrows (a), (b) and (c). And the lower ends of the pair of left and right rods (38) and (38) around which the springs (37) and (37) are wound are connected to the upper surface of the first rear cover (28).
8) A support (39) for the rotary cover (15) on the upper end side
The first rear cover (28) is configured to be pressed by a spring (37).
【００１１】また、前記第３リヤカバー（２５）上面に
レーキ支持体（４０）を着脱自在に固定させ、該支持体
（４０）に固定させるレーキ（４１）を第３リヤカバー
（２５）後方に延出させると共に、図１の仮想線に示す
如く、第１リヤカバー（２３）下面に上端を固定させる
レーキ（４２）を設け、ロータリ爪（１４）回転軌跡後
側と第２リヤカバー（２４）の間にレーキ（４２）を延
出させてもよい。Further, the rake support (40) is detachably fixed to the upper surface of the third rear cover (25), and the rake (41) fixed to the support (40) extends behind the third rear cover (25). As shown by the phantom line in FIG. 1, a rake (42) for fixing the upper end to the lower surface of the first rear cover (23) is provided, and the rake (42) is provided between the rear side of the rotary pawl (14) rotation locus and the second rear cover (24). The rake (42) may be extended.
【００１２】さらに、図３に示す如く、第２吊下ロッド
（３２）上端側を取付ける支持体（３３）の軸（４３）
に前記ガスダンパ（３４）上端を連結させ、第２吊下ロ
ッド（３２）とガスダンパ（３４）を可及的に接近させ
て略平行に設けると共に、前記デプスフレーム（９）後
端に支持フレーム（４４）を介して左右一対の尾輪（４
５）（４５）を取付け、左右尾輪（４５）（４５）間に
前記レーキ（４１）を配設させている。Further, as shown in FIG. 3, the shaft (43) of the support body (33) to which the upper end of the second suspension rod (32) is mounted.
The upper end of the gas damper (34) is connected to the second suspension rod (32) and the gas damper (34) as close to each other as possible, and the upper end of the gas damper (34) is provided substantially parallel to the second suspension rod (32). 44) via a pair of left and right tail wheels (4
5) (45) is attached, and the rake (41) is arranged between the left and right tail wheels (45) (45).
【００１３】また、前記リヤカバー（２３）（２４）
（２５）の左右幅略中央に１本の第１吊下ロッド（３
０）を位置させ、第１吊下ロッド（３０）の左右側方に
左右ロッド（３８）（３８）を配置させ、左右ロッド
（３８）（３８）のさらに左右外側方に左右二組の第２
吊下ロッド（３２）及びガスダンパ（３４）を配置さ
せ、第２吊下ロッド（３２）及びガスダンパ（３４）の
さらに左右外側方に左右リンク（２８）（２８）を配置
させ、第１及び第３リヤカバー（２３）（２５）の左右
側端部を左右リンク（２８）（２８）によって連結させ
ている。Further, the rear covers (23) (24)
One first suspension rod (3
0) is positioned, the left and right rods (38) and (38) are arranged on the left and right sides of the first suspension rod (30), and the left and right rods (38) and (38) are further arranged on the left and right outer sides by two sets of left and right pairs. Two
The suspension rod (32) and the gas damper (34) are arranged, and the left and right links (28) and (28) are arranged on the left and right outer sides of the second suspension rod (32) and the gas damper (34). The left and right ends of the three rear covers (23) and (25) are connected by the left and right links (28) and (28).
【００１４】[0014]
【発明の効果】以上実施例から明らかなように本発明
は、ロータリ爪（１４）上側のロータリカバー（１５）
後端に第１支点軸（２２）を介して鋼板製第１リヤカバ
ー（２３）を上下方向に揺動自在に連結させ、第１リヤ
カバー（２３）後端に弾性材製第２リヤカバー（２４）
前端を固定させ、第２リヤカバー（２４）後端に鋼板製
第３リヤカバー（２５）前端を固定させると共に、第１
リヤカバー（２４）後端部の第２支点軸（２６）と第３
リヤカバー（２５）前端部の第３支点軸（２７）をリン
ク（２８）によって連結させ、第３支点軸（２７）と略
同軸上に第４支点軸（２９）を設け、第４支点軸（２
９）に第１吊下ロッド（３０）下端を連結させ、第３リ
ヤカバー（２５）後端部の第５支点軸（３１）に第２吊
下ロッド（３２）下端を連結させ、第１リヤカバー（２
３）の支持体（３３）に第１及び第２吊下ロッド（３
０）（３２）上端側を昇降自在に取付け、各吊下ロッド
（３０）（３２）と第３リヤカバー（２５）によって側
面視三角形を形成させ、また第２及び第３及び第５支点
軸（２６）（２７）（３１）を結ぶ線によって側面視三
角形を形成させたもので、第２支点軸（２６）または第
３支点軸（２７）を中心に第３リヤカバー（２５）を上
方移動させ、第２支点軸（２６）及び支持体（３３）の
吊下ロッド（３０）（３２）連結部を支点とした両てこ
機構の動作によって第３リヤカバー（２５）を後上方に
移動させるから、第３リヤカバー（２５）両側部が平面
視で前後移動するフローティング動作を行わせることが
でき、第３リヤカバー（２５）のフローティング動作に
よってロータリ爪（１４）耕耘面の凹凸を従来よりも均
平にすることができ、耕耘作業時の走行速度を速くして
も耕耘面を従来の低速走行時と同様に均平に形成できる
ものである。As is apparent from the above embodiments, the present invention provides the rotary cover (15) above the rotary pawl (14).
A steel plate first rear cover (23) is vertically swingably connected to a rear end of the first fulcrum shaft (22), and an elastic second rear cover (24) is provided at a rear end of the first rear cover (23).
The front end is fixed, the front end of the third rear cover (25) made of steel plate is fixed to the rear end of the second rear cover (24), and the first end is fixed.
The second fulcrum shaft (26) at the rear end of the rear cover (24) and the third
A third fulcrum shaft (27) at the front end of the rear cover (25) is connected by a link (28), a fourth fulcrum shaft (29) is provided substantially coaxially with the third fulcrum shaft (27), and a fourth fulcrum shaft ( Two
9) is connected to the lower end of the first suspension rod (30), and the lower end of the second suspension rod (32) is connected to the fifth fulcrum shaft (31) at the rear end of the third rear cover (25) to form the first rear cover. (2
The support body (33) of 3) is provided with the first and second suspension rods (3).
0) and (32) are attached to the upper end side so as to be able to move up and down, the suspension rods (30) and (32) and the third rear cover (25) form a side view triangle, and the second, third and fifth fulcrum shafts ( 26) (27) (31) is formed by forming a triangle in a side view, and the third rear cover (25) is moved upward about the second fulcrum shaft (26) or the third fulcrum shaft (27). , The third rear cover (25) is moved rearward and upward by the operation of both lever mechanisms with the second fulcrum shaft (26) and the suspension rod (30) (32) connection portion of the support body (33) as a fulcrum. It is possible to perform a floating operation in which both sides of the third rear cover (25) move back and forth in a plan view, and the floating operation of the third rear cover (25) makes the unevenness of the cultivating surface of the rotary claw (14) more even than in the conventional case. By doing , But also a faster running speed at the time of tilling the tilling surface can be formed Hitoshitaira in the same manner as in the conventional low-speed running.
【００１５】また、第５支点軸（３１）と第１リヤカバ
ー（２３）の支持体（３３）間に略一定圧となる付勢手
段（３４）を連結させたもので、大きな初期荷重で小さ
なバネ定数が得られかつストロークも大きく形成できる
略一定圧となる付勢手段（３４）によって第３リヤカバ
ー（２５）を支持させるから、第３リヤカバー（２５）
の均等な加圧によって耕耘面を均すことができ、第３リ
ヤカバー（２５）の過加圧による土のねりつけを防止で
きると共に、第３リヤカバー（２５）のあばれ防止並び
に衝撃吸収などを容易に行うことができるものである。Further, a biasing means (34) for maintaining a substantially constant pressure is connected between the fifth fulcrum shaft (31) and the support body (33) of the first rear cover (23), and it is small with a large initial load. Since the third rear cover (25) is supported by the urging means (34) having a substantially constant pressure that can obtain a spring constant and form a large stroke, the third rear cover (25) is supported.
By evenly pressing, the cultivated surface can be leveled, soil can be prevented from being sprinkled due to overpressurization of the third rear cover (25), and the third rear cover (25) can be prevented from sticking and absorbing shock. Is something that can be done.
【図１】リヤカバー部の側面図。FIG. 1 is a side view of a rear cover portion.
【図２】全体の側面図。FIG. 2 is an overall side view.
【図３】同平面図。FIG. 3 is a plan view of the same.
【図４】ロータリ部の側面図。FIG. 4 is a side view of a rotary portion.
【図５】リヤカバーのフローティング説明図。FIG. 5 is a floating explanatory view of a rear cover.
【図６】ガスダンパの特性線図。FIG. 6 is a characteristic diagram of a gas damper.
【図７】トラクタのローリング説明図。FIG. 7 is an explanatory view of rolling of the tractor.
（１４） ロータリ爪 （１５） ロータリカバー （２２） 第１支点軸 （２３） 第１リヤカバー （２４） 第２リヤカバー （２５） 第３リヤカバー （２６） 第２支点軸 （２７） 第３支点軸 （２８） リンク （２９） 第４支点軸 （３０） 第１吊下ロッド （３１） 第５支点軸 （３２） 第２吊下ロッド （３３） 支持体 （３４） ガスダンパ（付勢手段） (14) Rotary claw (15) Rotary cover (22) First fulcrum shaft (23) First rear cover (24) Second rear cover (25) Third rear cover (26) Second fulcrum shaft (27) Third fulcrum shaft ( 28) Link (29) Fourth fulcrum shaft (30) First suspension rod (31) Fifth fulcrum shaft (32) Second suspension rod (33) Support (34) Gas damper (biasing means)
───────────────────────────────────────────────────── フロントページの続き (72)発明者 中 川 治 大阪市北区茶屋町１番32号 ヤンマー農機 株式会社内 (72)発明者 高 橋 東 光 大阪市北区茶屋町１番32号 ヤンマーディ ーゼル株式会社内 (72)発明者 平 野 隆 司 大阪市北区茶屋町１番32号 ヤンマーディ ーゼル株式会社内 (72)発明者 滝 沢 哲 也 長野県松本市石芝１丁目１番１号 石川島 芝浦機械株式会社松本工場内 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Osamu Nakagawa 1-32 Chayamachi, Kita-ku, Osaka City Yanmar Agricultural Machinery Co., Ltd. (72) Inventor Takahashi Toko 1-32-32 Chayamachi, Kita-ku, Osaka Yanmar Diesel Co., Ltd. (72) Inventor Takashi Hirano 1-32, Chayamachi, Kita-ku, Osaka Yanmar Diesel Co., Ltd. (72) Inventor Tetsuya Takizawa 1-1-1, Ishiba, Matsumoto-shi, Nagano Prefecture Ishikawajima Shibaura Machinery Co., Ltd. Matsumoto factory
Claims (2)
第１支点軸を介して鋼板製第１リヤカバーを上下方向に
揺動自在に連結させ、第１リヤカバー後端に弾性材製第
２リヤカバー前端を固定させ、第２リヤカバー後端に鋼
板製第３リヤカバー前端を固定させると共に、第１リヤ
カバー後端部の第２支点軸と第３リヤカバー前端部の第
３支点軸をリンクによって連結させ、第３支点軸と略同
軸上に第４支点軸を設け、第４支点軸に第１吊下ロッド
下端を連結させ、第３リヤカバー後端部の第５支点軸に
第２吊下ロッド下端を連結させ、第１リヤカバーの支持
体に第１及び第２吊下ロッド上端側を昇降自在に取付
け、各吊下ロッドと第３リヤカバーによって側面視三角
形を形成させ、また第２及び第３及び第５支点軸を結ぶ
線によって側面視三角形を形成させたことを特徴とする
ロータリ耕耘装置。1. A first rear cover made of steel plate is swingably connected in a vertical direction to a rear end of the rotary cover above the rotary claw via a first fulcrum shaft, and a rear end of the second rear cover made of an elastic material is attached to a rear end of the first rear cover. And a third rear cover made of steel plate is fixed to the rear end of the second rear cover, and the second fulcrum shaft at the rear end of the first rear cover and the third fulcrum shaft at the front end of the third rear cover are connected by a link. A fourth fulcrum shaft is provided substantially coaxially with the third fulcrum shaft, the fourth fulcrum shaft is connected to the lower end of the first hanging rod, and the fifth fulcrum shaft at the rear end of the third rear cover is connected to the lower end of the second hanging rod. Then, the upper ends of the first and second suspension rods are attached to the support body of the first rear cover so as to be able to move up and down, and each suspension rod and the third rear cover form a triangle in a side view, and the second, third and fifth suspension rods are formed. Side view triangle by the line connecting the fulcrum axes A rotary tilling device characterized by forming a shape.
に略一定圧となる付勢手段を連結させたことを特徴とす
る上記請求項１に記載のロータリ耕耘装置。2. The rotary tiller according to claim 1, further comprising an urging means connected between the fifth fulcrum shaft and the support of the first rear cover, the urging means having a substantially constant pressure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP24849794A JP3348326B2 (en) | 1994-09-16 | 1994-09-16 | Rotary tilling equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP24849794A JP3348326B2 (en) | 1994-09-16 | 1994-09-16 | Rotary tilling equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0884505A true JPH0884505A (en) | 1996-04-02 |
| JP3348326B2 JP3348326B2 (en) | 2002-11-20 |
Family
ID=17179058
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP24849794A Expired - Fee Related JP3348326B2 (en) | 1994-09-16 | 1994-09-16 | Rotary tilling equipment |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3348326B2 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005348616A (en) * | 2004-06-08 | 2005-12-22 | Matsuyama Plow Mfg Co Ltd | Agricultural working machine |
| JP2007222115A (en) * | 2006-02-24 | 2007-09-06 | Mitsubishi Agricult Mach Co Ltd | Rotary tiller |
| CN112682577A (en) * | 2019-10-18 | 2021-04-20 | 江苏固泰建筑材料科技有限公司 | Top-penetrating type finished product support and hanger |
-
1994
- 1994-09-16 JP JP24849794A patent/JP3348326B2/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005348616A (en) * | 2004-06-08 | 2005-12-22 | Matsuyama Plow Mfg Co Ltd | Agricultural working machine |
| JP2007222115A (en) * | 2006-02-24 | 2007-09-06 | Mitsubishi Agricult Mach Co Ltd | Rotary tiller |
| CN112682577A (en) * | 2019-10-18 | 2021-04-20 | 江苏固泰建筑材料科技有限公司 | Top-penetrating type finished product support and hanger |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3348326B2 (en) | 2002-11-20 |
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