JP2003125612A - Fertilizing and sowing machine - Google Patents

Fertilizing and sowing machine

Info

Publication number
JP2003125612A
JP2003125612A JP2001328210A JP2001328210A JP2003125612A JP 2003125612 A JP2003125612 A JP 2003125612A JP 2001328210 A JP2001328210 A JP 2001328210A JP 2001328210 A JP2001328210 A JP 2001328210A JP 2003125612 A JP2003125612 A JP 2003125612A
Authority
JP
Japan
Prior art keywords
roller
frame
roller arm
fulcrum shaft
support rod
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
Application number
JP2001328210A
Other languages
Japanese (ja)
Other versions
JP3811386B2 (en
Inventor
Hiroaki Oishi
廣昭 大石
Shigechika Maeda
茂義 前田
Kohei Shimamoto
講平 島本
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Agritecno Yazaki Co Ltd
Original Assignee
Agritecno Yazaki Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Agritecno Yazaki Co Ltd filed Critical Agritecno Yazaki Co Ltd
Priority to JP2001328210A priority Critical patent/JP3811386B2/en
Publication of JP2003125612A publication Critical patent/JP2003125612A/en
Application granted granted Critical
Publication of JP3811386B2 publication Critical patent/JP3811386B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Abstract

PROBLEM TO BE SOLVED: To improve a conventional fertilizing and sowing machine composed of a connection part and a grounding part rotatably connected with each other through a parallel link and pressing the grounding part downward with a spring inserted between the parts and solve the problems of the machine comprising poor followability of the machine to a complicatedly undulated field surface owing to its structure holding a furrow-opening disk, a soil-covering disk and a pressing roller pivoted to a roller frame constituting the frame of the grounding part and the difficulty in the application of uniform downward force when the pressing roller is made to enable the following of the field surface independent of the furrow-opening disk. SOLUTION: An end of a roller arm 22 is rotatably connected to a frame attached to a grounding part 3, a pressing roller 23 is rotatably pivoted to the other end of the roller arm, a supporting rod 41 sheathed with a compression spring 40 is pivoted between the frame and the roller arm and the frame-side supporting axis 43 of the supporting rod is placed outside of the rotary orbit of the roller arm-side supporting axis 42 and above and behind the roller arm- side supporting axis.

Description

【発明の詳細な説明】Detailed Description of the Invention

【0001】[0001]

【発明の属する技術分野】本発明は、トラクター等の走
行車両の後部に装着された施肥機や播種機等において、
作溝ディスクにより圃場に溝を形成し、該溝に播種し、
覆土ディスクで種子を覆土した後、鎮圧ローラーで圃場
を鎮圧する構成の施肥機または播種機の鎮圧ローラーを
下方に略均等な圧力で付勢する技術に関する。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a fertilizer applicator, a seeder, etc. mounted on a rear portion of a traveling vehicle such as a tractor.
Grooves are formed in the field by the grooving disc, and seeded in the grooves,
The present invention relates to a technique of urging a pressure-reducing roller of a fertilizer applicator or a seeder having a structure in which a field is crushed by a pressure-reducing roller after covering the seed with a soil-covering disc with a substantially uniform pressure.

【0002】[0002]

【従来の技術】従来から、トラクターの後部に装着さ
れ、種子や粉粒状の肥料のホッパーおよびこれらを繰出
す機構を有し、作溝ディスクで圃場に溝を形成し、該溝
に播種し、覆土ディスクで種子を覆土した後、鎮圧ロー
ラーで圃場を鎮圧する構成の播種機の技術は公知となっ
ている。
2. Description of the Related Art Conventionally, a hopper for a seed or a granular fertilizer and a mechanism for feeding these fertilizers, which are mounted on the rear part of a tractor, are provided, a groove is formed in a field by a grooving disk, and seeds are sown in the groove. A technique of a seeding machine having a structure in which a seed is covered with a cover disk and a field is suppressed by a press roller is known.

【0003】[0003]

【発明が解決しようとする課題】従来の施肥播種機にお
いては、トラクターの姿勢の変化や圃場の凹凸によらず
作溝ディスク、覆土ディスクおよび鎮圧ローラーが圃場
に追随して溝を形成するよう、施肥播種機をトラクター
に連結する部位(以下「接続部」と称する)と圃場に追
随させる部位(以下「接地部」と称する)の二つに構成
し、両者を平行リンクで回動自在に連結し、両者の間に
バネを介装して接地部を下方に付勢していたのである。
例えば実公平4−49858の技術である。この従来の
技術では接地部の骨格となるローラーフレームに作溝デ
ィスク、覆土ディスクおよび鎮圧ローラーが回転自在に
固定・軸支される構成であった。このような構成とする
ことは、例えば鎮圧ローラーの直下に圃場の凸部がある
ときに、接地部が上昇すると作溝ディスクおよび覆土デ
ィスクも同時に上昇して圃場から浮き上がってしまうた
め、複雑な凹凸のある圃場においては接地部の追随性に
問題があった。また従来の技術では平行リンクの対角方
向の枢支部を引っ張りバネで連結する構成であったため
に、バネの長さが決まってしまい。バネ力調整すること
が難しく、また、平行リンク同士が当たって揺動域が狭
いという不具合があった。更に、圃場面に追随させるた
めには、上昇時と下降時において略同じ付勢力が下方へ
付勢することが望ましいが、下方への付勢力は平行リン
クが上昇する程強くなっていたのである。本発明はこの
ような状況を鑑み、軽量かつ圃場の状況によらず略均等
の押付力で鎮圧ローラーを圃場に追随させ、また圃場の
状況に最適な押付力を容易に選択可能な施肥播種機を提
供するものである。
In the conventional fertilizer sowing machine, the grooving disc, the soil-covering disc and the crushing roller follow the field to form a groove regardless of the change in the posture of the tractor and the unevenness of the field. The fertilizer sowing machine is connected to the tractor (hereinafter referred to as the "connecting part") and the part to follow the field (hereinafter referred to as the "grounding part"), and both are rotatably connected by parallel links. However, a spring was interposed between the two to urge the ground contact portion downward.
For example, it is the technique of Jikken 4-49858. In this conventional technique, a grooved disc, a soil cover disc, and a pressure roller are rotatably fixed and axially supported on a roller frame that serves as a skeleton of a grounding portion. With such a configuration, for example, when there is a convex part of the field immediately below the pressure roller, when the ground contact part rises, the work-grooving disc and the soil-cover disc also rise at the same time and lift up from the field, resulting in complicated unevenness. In some fields, there was a problem with the trackability of the ground contact part. Further, in the conventional technique, the diagonal pivotal support portions of the parallel links are connected by tension springs, so the length of the springs is determined. It was difficult to adjust the spring force, and there was the problem that the swinging range was narrow because the parallel links hit each other. Further, in order to follow the field scene, it is desirable that the same urging force is applied downward at the time of ascending and at the time of descending, but the downward urging force was stronger as the parallel link was raised. . In view of such a situation, the present invention is a fertilizer-seeding machine that is lightweight and allows the pressing roller to follow the field with a substantially uniform pressing force regardless of the field situation, and that the optimum pressing force can be easily selected for the field situation. Is provided.

【0004】[0004]

【課題を解決するための手段】本発明の解決しようとす
る課題は以上の如くであり、次にこの課題を解決するた
めの手段を説明する。
The problem to be solved by the present invention is as described above, and the means for solving this problem will be described below.

【0005】即ち、請求項1においては、走行車両の後
部に装着され、作溝ディスクにより圃場に溝を形成し、
該溝に播種し、覆土ディスクで種子を覆土した後、鎮圧
ローラーで圃場を鎮圧する構成の播種機において、揺動
自在に支持された接地部に配置したフレームに回動自在
にローラーアームの一端を連結し、該ローラーアームの
他端に鎮圧ローラーを回転自在に軸支し、前記フレーム
とローラーアームの間に圧縮バネを外嵌した支持ロッド
を枢支し、該支持ロッドのフレーム側支点軸を、ローラ
ーアーム側支点軸の回動軌跡よりも外側の範囲、かつ、
ローラーアーム側支点軸よりも上方、かつ、後方に配置
されるように構成したのである。
That is, according to the first aspect of the present invention, the groove is mounted on the rear portion of the traveling vehicle to form a groove in the field by the grooving disk,
In a sowing machine configured to sow seeds in the groove and cover the seeds with a soil-covering disc, and then to crush the field with a crushing roller, one end of a roller arm is rotatably mounted on a frame arranged in a swingably supported grounding portion. , A compression roller is rotatably supported at the other end of the roller arm, a support rod having a compression spring fitted between the frame and the roller arm is pivotally supported, and a frame-side fulcrum shaft of the support rod is supported. A range outside the rotation locus of the fulcrum shaft on the roller arm side, and
The roller arm side fulcrum shaft is arranged above and behind the fulcrum shaft.

【0006】請求項2においては、該支持ロッドのフレ
ーム側支点軸の位置を、施肥播種機の進行方向に調整可
能な機構を設けたのである。
According to a second aspect of the present invention, there is provided a mechanism capable of adjusting the position of the frame-side fulcrum shaft of the support rod in the advancing direction of the fertilizer sowing machine.

【発明の実施の形態】次に、発明の実施の形態を説明す
る。図1は本発明の施肥播種機の側面図、図2は従来例
および本発明における施肥播種機のローラーアーム押圧
機構の位置関係を示す側面図、図3はローラーアームが
上方に回動したときのローラーアーム押圧機構の位置関
係を示す側面図、図4は請求項2の実施例を示す側面図
である。
BEST MODE FOR CARRYING OUT THE INVENTION Next, embodiments of the present invention will be described. 1 is a side view of a fertilizer applicator of the present invention, FIG. 2 is a side view showing a positional relationship of a roller arm pressing mechanism of the fertilizer applicator of the conventional example and the present invention, and FIG. 3 is a case where the roller arm is rotated upward. FIG. 4 is a side view showing the positional relationship of the roller arm pressing mechanism of FIG. 4, and FIG. 4 is a side view showing the embodiment of claim 2.

【0007】図1にて本発明の施肥播種機1の全体構成
から説明する。なお、以下の説明ではトラクターの進行
方向である図1中の矢印Aの方向を前方とする。施肥播
種機1は前上部に設けた取付フレーム35がトラクター
等の走行車両の後部に設けたツールバーに装着され、左
右に位置調整可能とされている。該取付フレーム35の
後部に播種フレーム36が固設され、該播種フレーム3
6の後部に肥料用の繰出装置6が固設され、該繰出装置
6の後部に種子用の繰出装置7が固定され、該繰出装置
6・7の上部にホッパー4・5がそれぞれ脱着可能に設
けられている。繰出装置6の下部にはガイドロート8が
配設され、ガイドロート8下端にガイドパイプ10が連
通されている。該ガイドパイプ10は図1の側面手前か
つ前方に湾曲し、その下端は作溝ディスク19の回転軸
の略前方側面側に位置している。一方、繰出装置7の下
部にはガイドロート9が配設され、該ガイドロート9の
下端に導管12が連通されている。該導管12の下端は
ガイドパイプ11に挿入されている。ガイドパイプ11
はローラーフレーム17に固定されており、ガイドパイ
プ11下端は作溝ディスク19・19間に挿入している
(以下播種フレーム36、ホッパー4・5、繰出装置6
・7、ガイドロート8・9、ガイドパイプ10、導管1
2等走行車両の後部に接続固定される部分を総称して
「接続部2」とする)。
The overall structure of the fertilizer application and seeding machine 1 of the present invention will be described with reference to FIG. In the following description, the direction of arrow A in FIG. 1, which is the traveling direction of the tractor, is defined as the front. In the fertilizer-seeding machine 1, a mounting frame 35 provided in the upper front part is attached to a toolbar provided in the rear part of a traveling vehicle such as a tractor, and the position can be adjusted left and right. The seeding frame 36 is fixed to the rear of the mounting frame 35, and the seeding frame 3
The feeding device 6 for fertilizer is fixed to the rear portion of the feeding device 6, the feeding device 7 for seeds is fixed to the rear portion of the feeding device 6, and the hoppers 4 and 5 can be attached to and detached from the upper portion of the feeding device 6 and 7, respectively. It is provided. A guide funnel 8 is disposed below the feeding device 6, and a guide pipe 10 communicates with the lower end of the guide funnel 8. The guide pipe 10 is curved toward the front and front of the side surface in FIG. 1, and the lower end thereof is located substantially on the front side surface side of the rotating shaft of the grooving disk 19. On the other hand, a guide funnel 9 is disposed below the feeding device 7, and a conduit 12 is connected to the lower end of the guide funnel 9. The lower end of the conduit 12 is inserted into the guide pipe 11. Guide pipe 11
Is fixed to the roller frame 17, and the lower end of the guide pipe 11 is inserted between the grooving disks 19 and 19 (hereinafter, the seeding frame 36, the hoppers 4 and 5, the feeding device 6).
・ 7, guide funnel 8.9, guide pipe 10, conduit 1
The part that is connected and fixed to the rear part of a second-class traveling vehicle is generically called "connecting part 2").

【0008】前記取付フレーム35の前面より下方に支
持フレーム13が垂設され、該支持フレーム13の下部
には平行リンク15・16が回動自在に枢支され、下端
に前記ガイドパイプ10下端を固定するための支持杆3
7が固定されている。前記平行リンク15・16の他端
は後方へ延出されてローラーフレーム17の前部に回動
自在に枢支されている。該ローラーフレーム17の前端
には支持杆18が固設され、下端に作溝ディスク19を
平面視V字状に回転自在に軸支している。そしてローラ
ーフレーム17より斜め下方に突設したアーム20の下
端で作溝ディスク19の後部に覆土ディスク21を付設
し、更に、ローラーフレーム17の前後中途部にローラ
ーアーム22の前端を回動自在に枢支して後下方に突出
し、該ローラーアーム22後部に鎮圧ローラー23を装
着している(作溝ディスク19、覆土ディスク21、鎮
圧ローラー23、ローラーフレーム17等平行リンク1
5・16の回動により圃場の凹凸に追随する部分を総称
して「接地部3」とする)。鎮圧ローラー23の押圧機
構については後で詳述する。
A supporting frame 13 is vertically provided below the front surface of the mounting frame 35, and parallel links 15 and 16 are rotatably supported at a lower portion of the supporting frame 13, and a lower end of the guide pipe 10 is provided at a lower end thereof. Support rod 3 for fixing
7 is fixed. The other ends of the parallel links 15 and 16 extend rearward and are rotatably supported on the front portion of the roller frame 17. A supporting rod 18 is fixed to the front end of the roller frame 17, and a groove disk 19 is rotatably supported in a V-shape in plan view at the lower end. Then, a soil cover disk 21 is attached to the rear part of the groove groove disk 19 at the lower end of the arm 20 projecting obliquely downward from the roller frame 17, and the front end of the roller arm 22 is rotatably attached to the front and rear midway part of the roller frame 17. The roller arm 22 is pivotally supported and protrudes downwardly downward, and a compression roller 23 is attached to the rear portion of the roller arm 22 (a parallel link 1 such as a groove groove disk 19, a soil covering disk 21, a compression roller 23, a roller frame 17 and the like).
The part that follows the unevenness of the field by the rotation of 5 and 16 is collectively referred to as "grounding part 3"). The pressing mechanism of the compression roller 23 will be described in detail later.

【0009】前記取付フレーム35後面より、付勢アー
ム14が後方へ突設され、該付勢アーム14とローラー
フレーム17との間に付勢部材となる圧縮バネ24・3
8を外嵌した支持ロッド39が介装されている。該支持
ロッド39の下端は支点軸25により枢支され、上部は
支点軸26により摺動自在かつ回動自在に支持されてい
る。こうして、接地部3は圃場の凹凸に追随しつつ付勢
される。
A biasing arm 14 is provided so as to project rearward from the rear surface of the mounting frame 35, and a compression spring 24.3 serving as a biasing member is provided between the biasing arm 14 and the roller frame 17.
A support rod 39 on which 8 is fitted is interposed. A lower end of the support rod 39 is pivotally supported by a fulcrum shaft 25, and an upper portion thereof is slidably and rotatably supported by a fulcrum shaft 26. In this way, the ground contact portion 3 is urged while following the unevenness of the field.

【0010】このような構成において、作業時にはホッ
パー4に粉粒状肥料を、ホッパー5に種子を充填し、ト
ラクター後部に施肥播種機1を装着してトラクターを前
進させると、作溝ディスク19により圃場には断面V字
状の溝ができ、図示しない駆動機構により繰出装置6・
7が駆動されて、ホッパー4から繰出装置6、ガイドロ
ート8、ガイドパイプ10を経て圃場に形成された溝か
ら所定距離離れた位置に肥料が投下される。一方、ホッ
パー5から繰出装置7、ガイドロート9、導管12、ガ
イドパイプ11を経て種子が該溝に投下され、覆土ディ
スク21により覆土され、鎮圧ローラー23により鎮圧
される。
In such a construction, when working, the hopper 4 is filled with the granular fertilizer and the hopper 5 is filled with the seed, and the fertilizer sowing machine 1 is mounted on the rear part of the tractor and the tractor is moved forward. A groove having a V-shaped cross section is formed on the feeding device 6 by a driving mechanism (not shown).
7, the fertilizer is dropped from the hopper 4 through the feeding device 6, the guide funnel 8, and the guide pipe 10 to a position apart from the groove formed in the field by a predetermined distance. On the other hand, seeds are dropped from the hopper 5 through the feeding device 7, the guide funnel 9, the conduit 12, and the guide pipe 11 into the groove, covered with the soil cover disk 21, and suppressed by the pressure roller 23.

【0011】次に、接地部3の付勢機構の取付構成につ
いて図1を用いて説明する。図1において、まず、接地
部3は略平行に昇降できるように、接続部2に鉛直方向
に設けた支持フレーム13の下部に前記平行リンク15
・16の前端が支点軸31・32により枢支され、該支
点軸31・32の軸心は接地部3が接地状態において略
同一鉛直線上に配設されている。また、平行リンク15
・16の後端はローラーフレーム17に支点軸33・3
4により枢支され、該支点軸33・34の軸心は接地状
態において略同一鉛直線上に配設されるように設定され
る。
Next, the mounting structure of the biasing mechanism of the ground portion 3 will be described with reference to FIG. In FIG. 1, first, the parallel link 15 is provided below the support frame 13 provided in the vertical direction on the connecting portion 2 so that the grounding portion 3 can be raised and lowered substantially in parallel.
The front end of 16 is pivotally supported by the fulcrum shafts 31 and 32, and the axes of the fulcrum shafts 31 and 32 are arranged on substantially the same vertical line when the grounding portion 3 is in the grounded state. Also, the parallel link 15
・ The rear end of 16 has a fulcrum shaft 33.3 on the roller frame 17.
4, the fulcrum shafts 33 and 34 are set so that the shaft centers of the fulcrum shafts 33 and 34 are arranged on substantially the same vertical line in the grounded state.

【0012】一方、接地部3を下方に付勢するための、
支持ロッド39の下端はローラーフレーム17の前後略
中央であって、平行リンク15・16の後方となる高さ
の位置に支点軸25により枢支される。好ましくは、接
地部3の重心位置に枢支する。該支持ロッド39の上部
は所定距離をあけて、前記支点軸25の鉛直上方よりも
後方の付勢アーム14に支点軸26により枢支される。
On the other hand, for urging the ground portion 3 downward,
The lower end of the support rod 39 is approximately centered in the front-rear direction of the roller frame 17, and is pivotally supported by the fulcrum shaft 25 at a position at a height behind the parallel links 15 and 16. Preferably, it is pivotally supported at the center of gravity of the ground contact portion 3. The upper part of the support rod 39 is pivotally supported by a fulcrum shaft 26 on the urging arm 14 rearward of the vertically upper part of the fulcrum shaft 25 with a predetermined distance.

【0013】次に本発明における鎮圧ローラー23の押
圧機構の取付構成について図1から図3を用いて説明す
る。なお、図2および図3においては説明を簡略にする
ため、支持ロッド41のローラーアーム22側支点軸4
2の位置を、ローラーアーム22の連結点44および鎮
圧ローラー軸支点48を結ぶ直線上にあるものとする。
ローラーアーム22は、一端がローラーフレーム17に
回動自在に枢支・連結され、他端に鎮圧ローラー23が
回動自在に軸支されている。ローラーアーム22の連結
点44はローラーフレーム17の重心近傍に配置するの
が好ましい。ローラーアーム22前後中途部にはステー
が固設され、該ステーに支持ロッド41の下端が支点軸
42により回動自在に枢支されている。また該支持ロッ
ド41には圧縮バネ40が外嵌され、支持ロッド41の
上端は支点軸43によりローラーフレーム17の後端に
回動自在に枢支される。
Next, the mounting structure of the pressing mechanism for the compression roller 23 according to the present invention will be described with reference to FIGS. 1 to 3. 2 and 3, in order to simplify the explanation, the fulcrum shaft 4 on the roller arm 22 side of the support rod 41 is shown.
It is assumed that the position 2 is on a straight line connecting the connection point 44 of the roller arm 22 and the compression roller shaft fulcrum 48.
One end of the roller arm 22 is pivotally supported and connected to the roller frame 17, and the compression roller 23 is pivotally supported at the other end. The connection point 44 of the roller arm 22 is preferably arranged near the center of gravity of the roller frame 17. A stay is fixedly provided in the middle of the front and rear of the roller arm 22, and the lower end of the support rod 41 is rotatably supported by the fulcrum shaft 42 on the stay. A compression spring 40 is fitted onto the support rod 41, and the upper end of the support rod 41 is rotatably supported by the fulcrum shaft 43 at the rear end of the roller frame 17.

【0014】図2に示すように、従来の施肥播種機にお
いては支持ロッド41の上端支点軸45の位置は、支持
ロッド41の下端支点軸42から見て略前方かつ上方に
あり、ローラーアーム22が連結点44を中心に上方へ
回動したときに支点軸42が描く軌跡(図2、図3中の
点線の円弧)よりも略内側に配置されていたのである。
このような構成とすると、図3のようにローラーアーム
が上方に回動したときの支点軸42・45間距離の変化
量、すなわち圧縮バネ40の圧縮量(|L2’−L2
|)はローラーアーム22の上方への回動角度にほぼ比
例して大きくなる。
As shown in FIG. 2, in the conventional fertilizer sowing machine, the position of the upper end fulcrum shaft 45 of the support rod 41 is substantially forward and upward when viewed from the lower end fulcrum shaft 42 of the support rod 41, and the roller arm 22 is provided. Was arranged substantially inside the locus drawn by the fulcrum shaft 42 (the arc of the dotted line in FIGS. 2 and 3) when it pivoted upward around the connecting point 44.
With such a configuration, the amount of change in the distance between the fulcrum shafts 42 and 45 when the roller arm rotates upward as shown in FIG. 3, that is, the amount of compression of the compression spring 40 (| L2′−L2
|) Increases substantially in proportion to the upward rotation angle of the roller arm 22.

【0015】一方、本発明における支持ロッド41の上
端支点軸43は支持ロッド41の下端支点軸42から見
て略後方かつ上方にあり、ローラーアーム22が連結点
44を中心に上方へ回動したときに支点軸42が描く軌
跡(図2および図3中の点線の円弧)よりも外側に配置
される。このような構成にすると、図3のようにローラ
ーアームが上方に回動したときの支点軸42・43間距
離の変化量、すなわち圧縮バネ40の圧縮量(|L1’
−L1|)はローラーアーム22の上方への回動角度が
大きくなるものの、従来の施肥播種機に比べて小さい
(|L1’−L1|<|L2’−L2|)。バネの付勢
力は弾性変形領域においては一般的にフックの法則が成
立し、圧縮(もしくは伸張)量と付勢力は比例するか
ら、図2から図3の位置にローラーアーム22が回動し
たときに支点軸42にかかる付勢力の増加量も従来例に
比べて本発明の方が小さい(F1’−F1<F2’−F
2)。
On the other hand, the upper end fulcrum shaft 43 of the support rod 41 in the present invention is substantially rearward and upward when viewed from the lower end fulcrum shaft 42 of the support rod 41, and the roller arm 22 pivots upward about the connecting point 44. The fulcrum shaft 42 is sometimes arranged outside the locus drawn (the arc of the dotted line in FIGS. 2 and 3). With such a configuration, the amount of change in the distance between the fulcrum shafts 42 and 43 when the roller arm rotates upward as shown in FIG. 3, that is, the amount of compression of the compression spring 40 (| L1 ′
-L1 |) has a larger rotation angle of the roller arm 22 upward, but is smaller than the conventional fertilizer application machine (| L1'-L1 | <| L2'-L2 |). The biasing force of the spring generally satisfies the Hooke's law in the elastic deformation region, and the amount of compression (or extension) is proportional to the biasing force. Therefore, when the roller arm 22 is rotated to the position shown in FIGS. The amount of increase in the urging force applied to the fulcrum shaft 42 is smaller in the present invention than in the conventional example (F1'-F1 <F2'-F).
2).

【0016】また、鎮圧ローラー23の圃場への押付力
を考えるときには前述の支点軸42にかかる付勢力の鉛
直成分の大きさで比較する必要がある。圃場への押付力
は(付勢力)×(水平線と支持ロッド41のなす角の正
弦)で表される。図2において従来例および本発明で用
いられる圧縮バネ40のバネ定数が等しく、また支点軸
42にかかる付勢力F1およびF2の鉛直成分であるF
の大きさが等しくなるように調整したとする。このとき
図3の位置までローラーアーム22が回動したときの従
来例における圃場への押付力F4は本発明における圃場
への押付力F3に比べて大きくなる。すなわち従来例に
比べて本発明の方が、ローラーアーム22が回動したと
きに鎮圧ローラー23の押付力の変化が小さい。これは
前述した付勢力の増加量に加えて、水平線と支持ロッド
41のなす角が大きな影響を及ぼしている。従来例と本
発明で比較すると、図2から図3の位置までローラーア
ーム22が回動したときに該角度の変化量の絶対値はほ
とんど差がない(|θ1−θ1’|=|θ2−θ2’
|)。しかし、従来例においては該角度が90度近傍、
すなわち支持ロッド41が圃場に対して略直立している
のに対して、本発明は支持ロッド41が圃場に対して施
肥播種機1の後方に傾いた状態である。このことは従来
例ではローラーアーム22が図2から図3の状態になる
ときに該角度の正弦の大きさがほとんど変化しない(si
n(θ2)≒sin(θ2’))のに対して本発明では該正弦が
小さくなる(sin(θ1)>sin(θ1’))ことを意味す
る。従って、本発明においては付勢力の増加量が小さ
く、かつ該正弦が小さくなるため圃場への押付力はロー
ラーアーム22の上方への回動によってほとんど変化せ
ず、結果として略均等の押圧で圃場を鎮圧することが可
能である。なお、圧縮バネ40は接地部3およびローラ
ーアーム22が圃場の凹凸に対して上下移動するが、急
激な上下移動に対して緩衝する役目も果たしており、こ
のときも略均等の押付力となり、どの高さの位置に対し
ても略同じ緩衝作用をするものである。
When considering the pressing force of the compression roller 23 to the field, it is necessary to compare the magnitude of the vertical component of the biasing force applied to the fulcrum shaft 42. The pressing force to the field is represented by (biasing force) × (sine of the angle formed by the horizontal line and the support rod 41). In FIG. 2, the compression springs 40 used in the conventional example and the present invention have the same spring constant, and F is the vertical component of the urging forces F1 and F2 applied to the fulcrum shaft 42.
It is assumed that the adjustments have been made so that the sizes of are equal. At this time, the pressing force F4 to the field in the conventional example when the roller arm 22 is rotated to the position of FIG. 3 is larger than the pressing force F3 to the field in the present invention. That is, the change of the pressing force of the compression roller 23 when the roller arm 22 rotates is smaller in the present invention than in the conventional example. This is greatly affected by the angle formed by the horizontal line and the support rod 41 in addition to the increase amount of the urging force described above. Comparing the conventional example with the present invention, when the roller arm 22 is rotated from the position shown in FIG. 2 to the position shown in FIG. 3, there is almost no difference in the absolute value of the change amount of the angle (| θ1−θ1 ′ | = | θ2− θ2 '
|). However, in the conventional example, the angle is near 90 degrees,
That is, while the support rod 41 is substantially upright with respect to the field, in the present invention, the support rod 41 is tilted rearward of the fertilizer application machine 1 with respect to the field. This means that in the conventional example, when the roller arm 22 changes from the state shown in FIG. 2 to the state shown in FIG.
In the present invention, it means that the sine becomes smaller (sin (θ1)> sin (θ1 ′)) while n (θ2) ≈sin (θ2 ′)). Therefore, in the present invention, since the increase amount of the biasing force is small and the sine is small, the pressing force to the field is hardly changed by the upward rotation of the roller arm 22, and as a result, the field is pressed with a substantially uniform pressure. Can be suppressed. Although the compression spring 40 vertically moves the ground contact portion 3 and the roller arm 22 with respect to the unevenness of the field, it also serves to buffer the sudden vertical movement. The same cushioning action is applied to the height position.

【0017】また、ローラーフレームは図4に示すよう
に構成することもできる。すなわちローラーフレーム4
6を後方に延長し、支持ロッド41の上端の支点軸43
を固定する孔47・47・・・を多数穿設し、支点軸4
3の位置を変更可能とする。このような構成にすること
により、圧縮バネ40のバネ定数と支点軸26の組み合
わせで、圃場の状況に最適な鎮圧ローラーの押付力の特
性を選択することが可能である。なお、図4に示す以外
にも、例えばローラーフレームの後部を摺動・伸縮する
二本の異径筒で構成し、任意の長さで係止する手段を設
けるなどの手段により、図4の実施例と同様の効果を得
ることが可能である。従って、支持点43を支点軸42
に対して上方かつ後方にある限りにおいては実施方法を
限定するものではない。
The roller frame can also be constructed as shown in FIG. Ie roller frame 4
6 is extended rearward, and the fulcrum shaft 43 at the upper end of the support rod 41 is
A large number of holes 47, 47 ...
The position of 3 can be changed. With such a configuration, it is possible to select the characteristic of the pressing force of the compression roller that is most suitable for the situation in the field by combining the spring constant of the compression spring 40 and the fulcrum shaft 26. In addition to the structure shown in FIG. 4, the rear part of the roller frame is composed of, for example, two cylinders of different diameters that slide and expand / contract, and a means for locking at an arbitrary length is provided. It is possible to obtain the same effect as that of the embodiment. Therefore, the support point 43 is replaced with the fulcrum shaft 42.
However, the method of implementation is not limited as long as it is above and behind.

【0018】また本発明においては接地部3を構成する
部位のひとつであるローラーフレーム17またはローラ
ーフレーム46にローラーアーム22を回動自在に連結
する構成としていたが、接続部2を構成するフレーム
(たとえば支持フレーム13や付勢アーム14)より略
後方かつ下方に突設されたステーの先端にローラーアー
ム22を連結し、該ローラーアーム22を付勢する押圧
機構を前記と同様の構成にしても効果が得られる。よっ
て、ローラーアーム22が連結されるフレームは接続部
2または接地部3のいずれかに限定されるものではな
い。
Further, in the present invention, the roller arm 22 is rotatably connected to the roller frame 17 or the roller frame 46 which is one of the parts constituting the grounding portion 3, but the frame forming the connecting portion 2 ( For example, the roller arm 22 is connected to the tip of a stay that is provided substantially rearward and downward of the support frame 13 and the biasing arm 14), and the pressing mechanism for biasing the roller arm 22 has the same configuration as described above. The effect is obtained. Therefore, the frame to which the roller arm 22 is connected is not limited to either the connecting portion 2 or the grounding portion 3.

【0019】[0019]

【発明の効果】本発明は、以上のように構成したので、
以下に示すような効果を奏する。
Since the present invention is constructed as described above,
The following effects are achieved.

【0020】即ち、請求項1に示す如く、走行車両の後
部に装着され、作溝ディスクにより圃場に溝を形成し、
該溝に播種し、覆土ディスクで種子を覆土した後、鎮圧
ローラーで圃場を鎮圧する構成の播種機において、揺動
自在に支持された接地部に配置したフレームに回動自在
にローラーアームの一端を連結し、該ローラーアームの
他端に鎮圧ローラーを回転自在に軸支し、前記フレーム
とローラーアームの間に圧縮バネを外嵌した支持ロッド
を枢支し、該支持ロッドのフレーム側支点軸を、ローラ
ーアーム側支点軸の回動軌跡よりも外側の範囲、かつ、
ローラーアーム側支点軸よりも上方、かつ、後方に配置
されるように構成したので、走行車両の姿勢の変化や圃
場の凹凸の状況によらず略均等の押圧で鎮圧ローラーを
圃場に付勢することが可能となった。
That is, as described in claim 1, it is mounted on the rear part of the traveling vehicle, and a groove is formed in the field by the grooving disk,
In a sowing machine configured to sow seeds in the groove and cover the seeds with a soil-covering disc, and then to crush the field with a crushing roller, one end of a roller arm is rotatably mounted on a frame arranged in a swingably supported grounding portion. , A compression roller is rotatably supported at the other end of the roller arm, a support rod having a compression spring fitted between the frame and the roller arm is pivotally supported, and a frame-side fulcrum shaft of the support rod is supported. A range outside the rotation locus of the fulcrum shaft on the roller arm side, and
Since the roller arm side fulcrum shaft is arranged above and behind the fulcrum shaft, the compression roller is urged to the field with a substantially uniform pressure regardless of changes in the posture of the traveling vehicle or unevenness of the field. It has become possible.

【0021】請求項2に示す如く、該支持ロッドのフレ
ーム側支点軸の位置を、施肥播種機の進行方向に調整可
能な機構を設けたので、圃場の状況に最適な鎮圧ローラ
ーの押付力を容易に選択可能としたのである。
As described in claim 2, since the mechanism for adjusting the position of the fulcrum shaft on the frame side of the support rod in the advancing direction of the fertilizer sowing machine is provided, the pressing force of the pressure roller suitable for the situation in the field is provided. It was possible to select easily.

【図面の簡単な説明】[Brief description of drawings]

【図1】本発明の施肥播種機の側面図。FIG. 1 is a side view of a fertilizer sowing machine of the present invention.

【図2】従来例および本発明における施肥播種機のロー
ラーアーム押圧機構の位置関係を示す側面図。
FIG. 2 is a side view showing a positional relationship of a roller arm pressing mechanism of a fertilizer applicator according to a conventional example and the present invention.

【図3】ローラーアームが上方に回動したときのローラ
ーアーム押圧機構の位置関係を示す側面図。
FIG. 3 is a side view showing a positional relationship of a roller arm pressing mechanism when the roller arm rotates upward.

【図4】請求項2の実施例を示す側面図。FIG. 4 is a side view showing an embodiment of claim 2;

【符号の説明】 1 施肥播種機 2 接続部 3 接地部 4・5 ホッパー 6・7 繰出装置 12 導管 17・46 ローラーフレーム 19 作溝ディスク 21 覆土ディスク 23 鎮圧ローラー 40 圧縮バネ 41 支持ロッド 42 ローラーアーム側支点軸 43 ローラーフレーム側支点軸 44 連結点[Explanation of symbols] 1 Fertilizer sowing machine 2 connection 3 Grounding part 4.5 Hopper 6.7 Feeding device 12 conduits 17.46 roller frame 19 Grooved disc 21 soil cover disc 23 Packing roller 40 compression spring 41 Support rod 42 Roller arm side fulcrum shaft 43 Roller frame side fulcrum shaft 44 Connection point

フロントページの続き (72)発明者 島本 講平 兵庫県姫路市土山6丁目5番12号 アグリ テクノ矢崎株式会社内 Fターム(参考) 2B054 AA02 BA01 BB01 CA04 CB02 CB03 CB07 CB15 DA05 Continued front page    (72) Inventor Kohei Shimamoto             6-5-12 Tsuchiyama, Himeji City, Hyogo Prefecture Agri             Inside Techno Yazaki Co., Ltd. F term (reference) 2B054 AA02 BA01 BB01 CA04 CB02                       CB03 CB07 CB15 DA05

Claims (2)

【特許請求の範囲】[Claims] 【請求項1】 走行車両の後部に装着され、作溝ディス
クにより圃場に溝を形成し、該溝に播種し、覆土ディス
クで種子を覆土した後、鎮圧ローラーで圃場を鎮圧する
構成の播種機において、揺動自在に支持された接地部に
配置したフレームに回動自在にローラーアームの一端を
連結し、該ローラーアームの他端に鎮圧ローラーを回転
自在に軸支し、前記フレームとローラーアームの間に圧
縮バネを外嵌した支持ロッドを枢支し、該支持ロッドの
フレーム側支点軸を、ローラーアーム側支点軸の回動軌
跡よりも外側の範囲、かつ、ローラーアーム側支点軸よ
りも上方、かつ、後方に配置されるように構成したこと
を特徴とする施肥播種機。
1. A seeding machine which is mounted on a rear portion of a traveling vehicle, forms a groove in a field with a grooving disk, sows the groove, covers seed with a soil-covering disk, and crushes the field with a pressure roller. In this case, one end of a roller arm is rotatably connected to a frame disposed on a grounding portion that is swingably supported, and a compression roller is rotatably supported by the other end of the roller arm, and the frame and the roller arm are supported. A support rod having a compression spring fitted between the support rod is pivotally supported, and the frame-side fulcrum shaft of the support rod is outside the rotation locus of the roller arm-side fulcrum shaft and more than the roller arm-side fulcrum shaft. A fertilizer sowing machine characterized in that it is arranged above and behind.
【請求項2】 該支持ロッドのフレーム側支点軸の位置
を、施肥播種機の進行方向に調整可能な機構を設けたこ
とを特徴とする請求項1に記載の施肥播種機。
2. The fertilizer sowing machine according to claim 1, further comprising a mechanism capable of adjusting the position of the frame-side fulcrum shaft of the support rod in the traveling direction of the fertilizer sowing machine.
JP2001328210A 2001-10-25 2001-10-25 Fertilizer seeding machine Expired - Fee Related JP3811386B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2001328210A JP3811386B2 (en) 2001-10-25 2001-10-25 Fertilizer seeding machine

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Application Number Priority Date Filing Date Title
JP2001328210A JP3811386B2 (en) 2001-10-25 2001-10-25 Fertilizer seeding machine

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Publication Number Publication Date
JP2003125612A true JP2003125612A (en) 2003-05-07
JP3811386B2 JP3811386B2 (en) 2006-08-16

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ID=19144309

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Country Link
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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101849457A (en) * 2010-05-27 2010-10-06 山西省农业科学院旱地农业研究中心 Under-corn seedbed strip-like water supplementing multifunctional seeder
CN107396670A (en) * 2017-09-01 2017-11-28 四川农业大学 One kind sowing power profiling drive device
CN108156898A (en) * 2018-01-11 2018-06-15 和县聂兴圩蔬菜种植有限责任公司 A kind of sowing covering device for vegetable cultivation
CN110235566A (en) * 2019-07-25 2019-09-17 长沙学院 Small push automatic fertilization sowing water filling all-in-one machine
CN114982431A (en) * 2022-06-13 2022-09-02 北京德邦大为科技股份有限公司 Air-blowing type forage no-tillage seeder and seeding process

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CN102907199A (en) * 2012-10-24 2013-02-06 杭州飞神工业设计有限公司 Film-covered sand controller
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Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101849457A (en) * 2010-05-27 2010-10-06 山西省农业科学院旱地农业研究中心 Under-corn seedbed strip-like water supplementing multifunctional seeder
CN101849457B (en) * 2010-05-27 2012-06-06 山西省农业科学院旱地农业研究中心 Under-corn seedbed strip-like water supplementing multifunctional seeder
CN107396670A (en) * 2017-09-01 2017-11-28 四川农业大学 One kind sowing power profiling drive device
CN108156898A (en) * 2018-01-11 2018-06-15 和县聂兴圩蔬菜种植有限责任公司 A kind of sowing covering device for vegetable cultivation
CN108156898B (en) * 2018-01-11 2020-12-15 和县聂兴圩蔬菜种植有限责任公司 A seeding earthing device for vegetable planting
CN110235566A (en) * 2019-07-25 2019-09-17 长沙学院 Small push automatic fertilization sowing water filling all-in-one machine
CN114982431A (en) * 2022-06-13 2022-09-02 北京德邦大为科技股份有限公司 Air-blowing type forage no-tillage seeder and seeding process
CN114982431B (en) * 2022-06-13 2023-08-04 北京德邦大为科技股份有限公司 Air-blowing type forage no-tillage planter and planting process

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