JP3524324B2 - Leveling / shoulder switching device - Google Patents
Leveling / shoulder switching deviceInfo
- Publication number
- JP3524324B2 JP3524324B2 JP11466497A JP11466497A JP3524324B2 JP 3524324 B2 JP3524324 B2 JP 3524324B2 JP 11466497 A JP11466497 A JP 11466497A JP 11466497 A JP11466497 A JP 11466497A JP 3524324 B2 JP3524324 B2 JP 3524324B2
- Authority
- JP
- Japan
- Prior art keywords
- plate
- leveling
- state
- shaft
- pin
- 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 - Fee Related
Links
Landscapes
- Soil Working Implements (AREA)
Description
【発明の詳細な説明】
【０００１】
【発明の属する技術分野】本発明は、トラクタの後部に
３点リンクヒッチ機構を介して長さ方向中央部分を昇降
可能に装着し、該中央部分に対し左右両側に延出してい
る作業部の後方に均平板を上下回動自在に枢支し、該均
平板を均平状態と土寄せ状態とに切換え可能にした代掻
作業機の均平・土寄せ切換え装置に関する。
【０００２】
【従来の技術】従来、トラクタの後部に３点リンクヒッ
チ機構を介して作業機の長さ方向中央部分を昇降可能に
装着し、この中央部分から左右両側に延出する作業部を
有し、該作業部の後方に均平板を上下回動自在に枢支し
て、該均平板を均平状態と土寄せ状態とに切換え可能と
した代掻作業機が周知である。
【０００３】
【発明が解決しようとする課題】上記従来の代掻作業機
においては、均平板を均平状態と土寄せ状態とに切換え
る際、人力による切換えのほか、機械的切換え手段とし
て、カム状のリンクの動きを利用したものなどがある
が、人力による切換えは面倒であり、また、カム状のリ
ンクを利用したものでは動きが悪く、大きな動力を要し
て遠隔操作が困難である、といった問題点があった。
【０００４】本発明は、均平板を均平状態と土寄せ状態
とに切換える操作が少ない動力で確実に行え、遠隔操作
を可能にした代掻作業機の均平・土寄せ切換え装置を提
供することを目的とする。
【０００５】
【課題を解決するための手段】上記の目的を達成するた
めに本発明は、トラクタの後部に３点リンクヒッチ機構
を介して作業機の長さ方向中央部分４を昇降可能に装着
し、この中央部分４から左右両側に延出する作業部５
Ｌ，５Ｒを有し、該作業部５Ｌ，５Ｒの後方に均平板１
７を上下回動自在に枢支して、該均平板１７を均平状態
と土寄せ状態とに切換え可能とした代掻作業機１におい
て、上記均平板１７の上面に一端を枢支したロッド２８
の他端を、基端を本体側に軸２６ａにより枢支した回動
アーム２６の先端にピン２６ｂを介して枢着し、この回
動アーム２６に設けた係合ピン２７に対して嵌合・嵌合
離脱可能の嵌合溝２４ｂを先端に有するプレート２４
を、上記回動アーム２６の枢支位置とは別に位置する軸
２４ａを介して枢支し、該プレート２４の基端部に油圧
シリンダ２５のピストンを連結して、該油圧シリンダ２
５の伸縮作動により上記プレート２４を回動させてその
嵌合溝２４ｂを上記係合ピン２７に対して嵌合・嵌合離
脱させ、上記均平板１７を均平状態と土寄せ状態とに切
換えるようにしたことを特徴としている。
【０００６】
【作用】上記の構成により本発明の代掻作業機の均平・
土寄せ切換え装置は、油圧シリンダ２５の伸縮作動によ
りプレート２４を回動させ、プレート２４の嵌合溝２４
ｂを回動アーム２６の係合ピン２７に対して嵌合・嵌合
離脱させ、均平板１７を均平状態と土寄せ状態とに容易
に切換える。そして、油圧シリンダ２５を遠隔操作する
ことにより、トラクタを操縦して代掻作業を行いながら
均平、土寄せ作業の切換えが行える。
【０００７】
【発明の実施の形態】以下、本発明の実施の形態を添付
の図面を参照して具体的に説明する。図において、符号
１は左右方向の長さが長く（この実施例では３７７０ｍ
ｍ）砕土・代掻機能を持つ代掻ハローである。この代掻
ハロー１の前部には、図示しないが、トラクタのトップ
リンクとロアーリンクとからなる周知の３点リンクヒッ
チ機構に連結される，トラクタへの連結部２が設けら
れ、代掻ハロー１はトラクタの後部に昇降可能に装着さ
れる。また、トラクタのＰＴＯ軸から、ユニバーサルジ
ョイント、伝動シャフト等を介して、代掻ハロー１の前
側中央部に設けられた変速ギヤボックス３に、入力軸３
ａを介して動力が伝達される。
【０００８】代掻ハロー１は、中央部分４（長さ＝１９
００ｍｍ）と左右の作業機部分５Ｌ，５Ｒ（長さ＝各９
３０ｍｍ）とに３分割され、中央部分４の左右の端部と
左右の作業機部分５Ｌ，５Ｒの内端部とをそれぞれ回転
軸（回転支点）６，６によりほぼ１８０°回転可能に連
結し、上記中央部分４の背面４ａと左右の作業機部分５
Ｌ，５Ｒの背面５Ｌａ，５Ｒａとを重ね合わせるように
して折り畳み可能としている。図面でも示すように、中
央部分４の長さに対し左右の作業機部分５Ｌ，５Ｒの長
さをほぼ２分の１としている。作業機部分５Ｌ，５Ｒは
左右対称であり、同じ構成であるので一方の作業機部分
５Ｌについて説明する。
【０００９】上記ギヤボックス３から左右両側に、本体
フレームを兼ね、伝動シャフト７，７ａを内装した伝動
フレーム８，８ａが設けられている。この伝動フレーム
８，８ａから、中央部分４においてはトラクタのタイヤ
Ｔの後方に位置して、また、作業機部分５Ｌ，５Ｒにお
いては外側端に位置して、それぞれチェン伝動ケース９
を垂設している。これら各チェン伝動ケース９の下端部
と伝動フレーム８，８ａからチェン伝動ケース９と対向
して垂設した支持フレーム１０の下端部との間にロータ
リ軸１１が軸架されている。ロータリ軸１１の軸周には
多数の砕土・代掻爪１２が取付けられて砕土・代掻ロ−
タ１３を構成している。
【００１０】上記伝動シャフト７と７ａの軸端が対向す
る部分にはドッグクラッチ１４が設けられていて、図１
に示す代掻ハロー１全体が作業状態のときはドッグクラ
ッチ１４が接続され、左右の作業機部分５Ｌ，５Ｒを回
転軸６を中心に回動して中央部分４上に折り畳むときに
ドッグクラッチ１４が切断される。砕土・代掻ロ−タ１
３の上方は、本体フレームに支持されたシールドカバー
１５により覆われており、このシールドカバー１５の後
端部に、後端位置にレベラー（均平板）１７を枢支した
エプロン１６の上端部が上下方向に回動自在に枢着され
ている。レベラー１７の折り畳み対向部分は、上記回転
軸６の軸心とほぼ等しい軸心で回動するヒンジ１８によ
り連結されている。また、レベラー１７は、土壌を均平
する均平位置と土壌を掻き寄せる土寄せ位置とに変位可
能である。
【００１１】上記作業機部分５Ｌの折り畳み回動部分に
はガイド溝１９ａを有するガイド板１９が固設され、こ
のガイド板１９の上側に、一端に上記ガイド溝１９ａに
嵌挿されるガイドピン２０ａを有し、他端を中央部分４
側に軸２０ｂにより左右方向に回転可能に軸支され、く
字状に屈曲した回転アーム２０を設け、この回転アーム
２０の中間部と伝動フレーム８との間に油圧シリンダ２
１を介装し、この油圧シリンダ２１の伸縮作動により作
業機部分５Ｌを作業位置と折り畳み位置とに回動させ
る。作業機部分５Ｌを作業位置にしたときにはロック装
置２２によりロックされる。
【００１２】上記左右の作業機部分５Ｌ，５Ｒを中央部
分４上に折り畳んだとき、中央部分４の左右両端の支持
フレーム１０には、車輪付スタンド２３が着脱可能に設
けられる。また、上記各各チェン伝動ケース９の下方に
は残耕処理装置が設けられている。
【００１３】図７に示すように上記レベラー（均平板）
１７は、枢支部１７ａによりエプロン１６の下端部に上
下回動自在に枢支され、均平板１７の上面に設けたブラ
ケット１７ｂにロッド２８の一端を枢支している。この
ロッド２８の他端は、基端を軸２６ａを介して本体側に
枢支した二股状の回動アーム２６の先端にピン２６ｂに
より枢着されている。この回動アーム２６に設けた係合
ピン２７に対して嵌合・嵌合離脱可能の嵌合溝２４ｂを
先端に有するプレート２４を、上記回動アーム２６の軸
２６ａとは別の上下に同じ軸線上に位置して軸２４ａに
より枢支し、該プレート２４の基端側を油圧シリンダ２
５のピストンにピン２５ａにより連結して、この油圧シ
リンダ２５の伸縮作動により上記プレート２４を回動さ
せてその嵌合部２４ｂを上記係合ピン２７に対して嵌合
・嵌合離脱させ、上記均平板１７を均平状態と土寄せ状
態とに切換える。
【００１４】
【発明の効果】以上説明したように本発明の代掻作業機
の均平・土寄せ切換え装置によれば、均平板１７の上面
に一端を枢支したロッド２８の他端を、基端を本体側に
軸２６ａにより枢支した回動アーム２６の先端にピン２
６ｂを介して枢着し、この回動アーム２６に設けた係合
ピン２７に対して嵌合・嵌合離脱可能の嵌合溝２４ｂを
先端に有するプレート２４を、上記回動アーム２６の枢
支位置とは別に位置する軸２４ａを介して枢支し、該プ
レート２４の基端部に油圧シリンダ２５のピストンを連
結して、該油圧シリンダ２５の伸縮作動により上記プレ
ート２４を回動させてその嵌合溝２４ｂを上記係合ピン
２７に対して嵌合・嵌合離脱させ、上記均平板１７を均
平状態と土寄せ状態とに切換えるので、油圧シリンダ２
５の伸縮作動によりプレート２４を回動させ、プレート
２４の嵌合溝２４ｂを回動アーム２６の係合ピン２７に
対して嵌合・嵌合離脱させ、均平板１７を均平状態と土
寄せ状態とに容易に切換えることができる。そして、油
圧シリンダ２５を遠隔操作することによって、トラクタ
を操縦して代掻作業を行いながら、均平板１７の均平、
土寄せ作業の切換えを任意に行うことができる。Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a tractor in which a central portion in a longitudinal direction is mounted on a rear portion of a tractor via a three-point link hitch mechanism so as to be able to move up and down. The leveling / closing switch of a scraping machine in which the leveling plate is pivotally supported vertically rotatably behind the working portion extending to the left and right sides so that the leveling plate can be switched between a leveling state and a burrowing state. Equipment related. 2. Description of the Related Art Conventionally, a central portion in the longitudinal direction of a working machine is mounted on a rear portion of a tractor via a three-point link hitch mechanism so as to be able to move up and down, and a working portion extending from the central portion to both left and right sides. 2. Description of the Related Art There is a well-known scraping machine which has a leveling plate rotatably and vertically rotatable behind the working unit so that the leveling plate can be switched between a leveling state and a burrowing state. In the conventional scraping machine, when the flat plate is switched between the flattened state and the burrowing state, in addition to manual switching, a cam-shaped switching means is used as mechanical switching means. There is a link that uses the movement of the link, but switching by manual operation is troublesome, and a link that uses a cam-like link moves poorly, requires large power, and makes remote control difficult. There was a problem. An object of the present invention is to provide an apparatus for switching between a leveling plate and a soil crushing state of a scraping work machine, which can reliably perform the operation of switching the leveling plate between the leveling state and the burrowing state with a small amount of power and enable remote control. Aim. [0005] In order to achieve the above object, the present invention is to mount a longitudinal center portion 4 of a working machine on a rear portion of a tractor via a three-point link hitch mechanism so as to be able to move up and down. And a working part 5 extending from the central part 4 to the left and right sides.
L, 5R, and a flat plate 1 behind the working portions 5L, 5R.
In the scraping machine 1 in which the leveling plate 17 is rotatably supported up and down so that the leveling plate 17 can be switched between a leveling state and a soil-pulling state, a rod 28 having one end pivotally supported on the upper surface of the leveling plate 17 is provided.
Is pivotally connected via a pin 26b to a distal end of a rotating arm 26 whose base end is pivotally supported on the body side by a shaft 26a, and is fitted to an engaging pin 27 provided on the rotating arm 26. A plate 24 having a fitting groove 24b at its tip which is capable of fitting and disengaging.
Is pivotally supported via a shaft 24 a which is located separately from the pivotal position of the rotary arm 26, and a piston of a hydraulic cylinder 25 is connected to the base end of the plate 24.
The plate 24 is rotated by the expansion and contraction operation of 5 so that the fitting groove 24b is fitted into and disengaged from the engaging pin 27, and the leveling plate 17 is switched between the leveled state and the soil-closed state. It is characterized by having. With the above arrangement, the flattening and working machine of the present invention can be flattened.
Earthing up switching device, the plate 24 is rotated by the expansion and contraction operation of the hydraulic cylinder 25, the fitting groove 24 of the plate 24
b is fitted to and disengaged from the engaging pin 27 of the rotating arm 26 , and the leveling plate 17 is easily switched between the leveling state and the soil-pulling state. Then, by remotely operating the hydraulic cylinder 25 , it is possible to switch between leveling and burying work while manipulating the tractor to perform the scraping work. Embodiments of the present invention will be specifically described below with reference to the accompanying drawings. In the figure, reference numeral 1 indicates that the length in the left-right direction is long (3770 m in this embodiment).
m) It is a scraping harrow having a crushing and scraping function. Although not shown, a connecting portion 2 for connecting to a tractor, which is connected to a well-known three-point link hitch mechanism including a top link and a lower link of the tractor, is provided at a front portion of the substitute harrow. 1 is attached to the rear of the tractor so as to be able to move up and down. Also, the input shaft 3 is provided from the PTO shaft of the tractor to a transmission gear box 3 provided at the front center of the substitute harrow 1 via a universal joint, a transmission shaft and the like.
Power is transmitted via a. The substitute harrow 1 has a central portion 4 (length = 19).
00 mm) and left and right working machine parts 5L, 5R (length = 9 each)
30 mm), and the right and left ends of the central part 4 and the inner ends of the left and right working machine parts 5L and 5R are connected by rotating shafts (rotating fulcrums) 6 and 6 so as to be able to rotate substantially 180 °. The back surface 4a of the central portion 4 and the left and right working machine portions 5
L and 5R can be folded so as to overlap with the back surfaces 5La and 5Ra. As shown in the drawing, the lengths of the left and right working machine parts 5L and 5R are approximately ほ ぼ of the length of the central part 4. Since the working machine parts 5L and 5R are symmetrical and have the same configuration, only one working machine part 5L will be described. Transmission frames 8 and 8a are provided on both left and right sides of the gear box 3 and serve as a main body frame and include transmission shafts 7 and 7a. From the transmission frames 8 and 8a, the chain transmission case 9 is located at the rear of the tractor tire T at the center portion 4 and at the outer end of the working machine portions 5L and 5R.
Is hanging. A rotary shaft 11 is suspended between the lower end of each of the chain transmission cases 9 and the lower end of a support frame 10 vertically installed facing the chain transmission case 9 from the transmission frames 8, 8a. On the circumference of the rotary shaft 11, a large number of soil crushing / scraping claws 12 are attached, and
The data 13 is constituted. A dog clutch 14 is provided at a portion where the shaft ends of the transmission shafts 7 and 7a face each other.
The dog clutch 14 is connected when the whole scratching harrow 1 shown in FIG. 1 is in the working state, and when the left and right working machine parts 5L, 5R are turned around the rotation shaft 6 and folded on the central part 4, the dog clutch 14 is connected. Is disconnected. Soil crusher / Scraper rotor 1
The upper part of 3 is covered with a shield cover 15 supported by the main body frame, and the rear end of the shield cover 15 is provided with an upper end of an apron 16 pivotally supporting a leveler (flat plate) 17 at the rear end position. It is pivotally mounted in a vertically rotatable manner. The folded opposing portions of the leveler 17 are connected by a hinge 18 that rotates about an axis substantially equal to the axis of the rotating shaft 6. Further, the leveler 17 can be displaced between a leveling position for leveling the soil and a soil collecting position for scraping the soil. A guide plate 19 having a guide groove 19a is fixedly mounted on the folding and rotating portion of the working machine portion 5L, and a guide pin 20a which is inserted into the guide groove 19a at one end is provided above the guide plate 19. Having the other end in the central part 4
A rotary arm 20 which is rotatably supported in the left and right direction by a shaft 20 b and is bent in a V-shape is provided on a side of the hydraulic cylinder 2 between an intermediate portion of the rotary arm 20 and the transmission frame 8.
The work machine portion 5L is rotated between the working position and the folded position by the expansion and contraction operation of the hydraulic cylinder 21. When the working machine portion 5L is in the working position, it is locked by the lock device 22. When the left and right working machine parts 5L and 5R are folded on the central part 4, the stand with wheels 23 is detachably provided on the support frames 10 at both left and right ends of the central part 4. Further, a residual tillage treatment device is provided below each of the chain transmission cases 9. As shown in FIG . 7, the leveler (flat plate)
17 is pivotally supported by a pivot 17a at the lower end of the apron 16 so as to be vertically rotatable, and one end of a rod 28 is pivotally supported by a bracket 17b provided on the upper surface of the leveling plate 17. The other end of the rod 28 is pivotally connected by a pin 26b to the distal end of a bifurcated rotary arm 26 whose base end is pivotally supported on the main body side via a shaft 26a. The plate 24 having a fitting groove 24b at its tip which can be fitted to and disengaged from the engaging pin 27 provided on the rotating arm 26 is vertically and the same as the shaft 26a of the rotating arm 26. The plate 24 is positioned on the axis and pivotally supported by a shaft 24a.
5 is connected to the piston 5 by a pin 25a, the plate 24 is rotated by the expansion and contraction operation of the hydraulic cylinder 25, and the fitting portion 24b is fitted to and disengaged from the engaging pin 27. The leveling plate 17 is switched between the leveling state and the soiling state. As described above, according to the leveling / shoulder switching device of the present invention, the other end of the rod 28 pivotally supported at one end on the upper surface of the leveling plate 17 is used as the base. A pin 2 is attached to the tip of a rotating arm 26 whose end is pivotally supported by a shaft 26a on the body side.
6b, and a plate 24 having a fitting groove 24b at a tip thereof which can be fitted into and disengaged from an engaging pin 27 provided on the rotating arm 26. By pivotally supporting via a shaft 24a located separately from the support position , a piston of a hydraulic cylinder 25 is connected to the base end of the plate 24, and the plate 24 is rotated by the expansion and contraction operation of the hydraulic cylinder 25. The fitting groove 24b is fitted to and disengaged from the engaging pin 27, and the leveling plate 17 is switched between the leveling state and the soil closing state.
5, the plate 24 is rotated by the expansion and contraction operation of 5, and the fitting groove 24b of the plate 24 is fitted to and disengaged from the engaging pin 27 of the rotating arm 26. And can be easily switched. Then, by remotely operating the hydraulic cylinder 25, the tractor is steered to perform the scraping operation,
It is possible to arbitrarily switch the burying work.
【図面の簡単な説明】
【図１】本発明による折り畳み式代掻ハロー全体の概略
背面図である。
【図２】図１のＡ方向からの概略側面図である。
【図３】代掻ハローを折り畳んだ状態の概略側面図であ
る。
【図４】図３のＢ方向からの概略平面図である。
【図５】本発明による代掻ハローの部分平面図である。
【図６】代掻ハローを折り畳んだ状態の側面図である。
【図７】（ａ）は均平板を均平作業状態にした概略側面
図、（ｂ）は均平板を土寄せ作業状態にした概略側面図
である。
【図８】代掻ハローの部分平面図である。
【図９】折り畳み機構の部分平面図である。
【図１０】折り畳んだ状態の部分平面図である。
【符号の説明】
１ 代掻ハロー
２ トラクタへの連結部
３ 変速ギヤボックス ３ａ 入力軸
４ 代掻ハローの中央部分 ４ａ 中央部分の背面
５Ｌ 左作業機部分 ５Ｒ 右作業機部分 ５Ｌａ 左
作業機部分の背面 ５Ｒａ 右作業機部分の背面
６ 回転軸（回転支点）
７，７ａ 伝動シャフト
８ 伝動フレーム
９ チェン伝動ケース
１０ 支持フレーム
１１ ロータリ軸
１２ 砕土・代掻爪
１３ 砕土・代掻ロ−タ
１４ ドッグクラッチ
１５ シールドカバー
１６ エプロン
１７ レベラー（均平板） １７ａ 枢支部 １７ｂ
ブラケット
１８ ヒンジ
１９ ガイド板 １９ａ ガイド溝
２０ 回転アーム ２０ａ ガイドピン ２０ｂ 軸
２１，２５ 油圧シリンダ ２５ａ ピン
２２ ロック装置
２３ 車輪付スタンド
２４ プレート ２４ａ 軸 ２４ｂ 嵌合溝
２６ 回動アーム ２６ａ 軸 ２６ｂ ピン
２７ 係合ピン
２８ ロッド
Ｔ トラクタのタイヤBRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a schematic rear view of an entire folding surrogate harrow according to the present invention. FIG. 2 is a schematic side view from the direction A in FIG. 1; FIG. 3 is a schematic side view of a state where a substitute harrow is folded. FIG. 4 is a schematic plan view from the direction B in FIG. 3; FIG. 5 is a partial plan view of a substitute harrow according to the present invention. FIG. 6 is a side view showing a state in which a substitute harrow is folded. FIG. 7 (a) is a schematic side view in which the leveling plate is in a leveling operation state, and FIG. 7 (b) is a schematic side view in which the leveling plate is in a burrowing operation state. FIG. 8 is a partial plan view of a substitute harrow. FIG. 9 is a partial plan view of the folding mechanism. FIG. 10 is a partial plan view in a folded state. [Description of Signs] 1st scraper harrow 2 Connecting part to tractor 3 speed change gearbox 3a input shaft 4 central portion of alternate scraper harrow 4a Back surface of central portion 5L left working machine portion 5R right working machine portion 5La left working machine portion Rear 5Ra Rear of right working machine 6 Rotary shaft (rotary fulcrum) 7, 7a Transmission shaft 8 Transmission frame 9 Chain transmission case 10 Support frame 11 Rotary shaft 12 Crushed soil / scraping claw 13 Soiled / scraping rotor 14 Dog clutch 15 Shield cover 16 Apron 17 Leveler 17a Pivot 17b
Bracket 18 Hinge 19 Guide plate 19a Guide groove 20 Rotating arm 20a Guide pin 20b Shaft 21, 25 Hydraulic cylinder 25a Pin 22 Lock device 23 Stand with wheel 24 Plate 24a Shaft 24b Fitting groove 26 Rotating arm 26a Shaft 26b Pin 27 Engagement Pin 28 Rod T Tractor tire
───────────────────────────────────────────────────── フロントページの続き (58)調査した分野(Int.Cl.7，ＤＢ名) A01B 35/04 A01B 33/12 A01B 73/00 - 73/06 ──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int. Cl. 7 , DB name) A01B 35/04 A01B 33/12 A01B 73/00-73/06
Claims (1)
を介して作業機の長さ方向中央部分（４）を昇降可能に
装着し、この中央部分（４）から左右両側に延出する作
業部（５Ｌ，５Ｒ）を有し、該作業部（５Ｌ，５Ｒ）の
後方に均平板（１７）を上下回動自在に枢支して、該均
平板（１７）を均平状態と土寄せ状態とに切換え可能と
した代掻作業機（１）において、 上記均平板（１７）の上面に一端を枢支したロッド（２
８）の他端を、基端を本体側に軸（２６ａ）により枢支
した回動アーム（２６）の先端にピン（２６ｂ）を介し
て枢着し、この回動アーム（２６）に設けた係合ピン
（２７）に対して嵌合・嵌合離脱可能の嵌合溝（２４
ｂ）を先端に有するプレート（２４）を、上記回動アー
ム（２６）の枢支位置とは別に位置する軸（２４ａ）を
介して枢支し、該プレート（２４）の基端部に油圧シリ
ンダ（２５）のピストンを連結して、該油圧シリンダ
（２５）の伸縮作動により上記プレート（２４）を回動
させてその嵌合溝（２４ｂ）を上記係合ピン（２７）に
対して嵌合・嵌合離脱させ、上記均平板（１７）を均平
状態と土寄せ状態とに切換えるようにしたことを特徴と
する代掻作業機の均平・土寄せ切換え装置。(1) A central portion (4) in the longitudinal direction of the working machine is attached to a rear portion of the tractor via a three-point link hitch mechanism so as to be able to ascend and descend. And a working portion (5L, 5R) extending to both left and right sides from the front, and a flat plate (17) is pivotably supported on the rear side of the working portion (5L, 5R) so as to be vertically rotatable. ) Can be switched between a flattened state and a soiled state, and a rod (2) having one end pivotally supported on the upper surface of the flattened plate (17).
The other end of 8) is pivotally connected via a pin (26b) to the distal end of a rotating arm (26) whose base end is pivotally supported by a shaft (26a) on the main body side, and is provided on this rotating arm (26). Fitting groove (24) that can be fitted to and disengaged from the engaged pin (27).
b) is pivotally supported via a shaft (24a) located separately from the pivotal position of the pivot arm (26), and a hydraulic pressure is applied to the base end of the plate (24). The piston of the cylinder (25) is connected, and the plate (24) is rotated by the expansion and contraction operation of the hydraulic cylinder (25) to fit the fitting groove (24b) into the engaging pin (27). A leveling / shoulder switching device for a scraping machine, wherein the leveling plate (17) is switched between a flattened state and a sanding state by mating / fitting / removing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11466497A JP3524324B2 (en) | 1997-05-02 | 1997-05-02 | Leveling / shoulder switching device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11466497A JP3524324B2 (en) | 1997-05-02 | 1997-05-02 | Leveling / shoulder switching device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH10304702A JPH10304702A (en) | 1998-11-17 |
| JP3524324B2 true JP3524324B2 (en) | 2004-05-10 |
Family
ID=14643499
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11466497A Expired - Fee Related JP3524324B2 (en) | 1997-05-02 | 1997-05-02 | Leveling / shoulder switching device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3524324B2 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4828323B2 (en) * | 2006-06-30 | 2011-11-30 | 株式会社ササキコーポレーション | Leveling plate operation link mechanism of tillage device |
| JP7037183B2 (en) * | 2018-08-18 | 2022-03-16 | 株式会社ササキコーポレーション | Folding soil crusher |
| JP7220933B2 (en) * | 2018-08-18 | 2023-02-13 | 株式会社ササキコーポレーション | Foldable soil crusher |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0711528Y2 (en) * | 1988-04-21 | 1995-03-22 | 松山株式会社 | Farm work machine |
| JPH08130903A (en) * | 1994-11-11 | 1996-05-28 | Yanmar Agricult Equip Co Ltd | Tilling rotary working machine |
| JP3199346B2 (en) * | 1995-01-31 | 2001-08-20 | 小橋工業株式会社 | Folding farm work machine |
| JP3425684B2 (en) * | 1995-09-30 | 2003-07-14 | 株式会社ササキコーポレーション | Agricultural crusher |
-
1997
- 1997-05-02 JP JP11466497A patent/JP3524324B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH10304702A (en) | 1998-11-17 |
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