JPH03183408A - Seedling transplanter - Google Patents

Seedling transplanter

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Publication number
JPH03183408A
JPH03183408A JP32163989A JP32163989A JPH03183408A JP H03183408 A JPH03183408 A JP H03183408A JP 32163989 A JP32163989 A JP 32163989A JP 32163989 A JP32163989 A JP 32163989A JP H03183408 A JPH03183408 A JP H03183408A
Authority
JP
Japan
Prior art keywords
seedling
planting
holding arm
seedlings
arm
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.)
Pending
Application number
JP32163989A
Other languages
Japanese (ja)
Inventor
Toshimasa Moriya
守屋　利正
Masaki Orimoto
正樹 折本
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.)
Kubota Corp
Original Assignee
Kubota Corp
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 Kubota Corp filed Critical Kubota Corp
Priority to JP32163989A priority Critical patent/JPH03183408A/en
Publication of JPH03183408A publication Critical patent/JPH03183408A/en
Pending legal-status Critical Current

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Abstract

PURPOSE:To obtain a seedling transplanter capable of preventing breakage of retaining arm and planted pawl by moving a retaining arm to thrust retaining position by a spring mechanism and forcibly subjecting the retaining arm to return driving to the evacuation position. CONSTITUTION:A retaining arm 6 is moved to thrust retaining position to top seedling A, previous to a planting operation of planting pawl 3a by spring mechanism 22 and retaining arm 6 is forcibly subjected to return driving in evacuation position after planting operation of planting pawl 3a. The retaining arm does not thrust deeper than needed into seedling and does not interfere with a planting pawl and load is not concentrated on a driving system.

Description

【発明の詳細な説明】 〔産業上の利用分野〕 本発明は、例えば藺草やライ麦等の苗を圃場に植付けて
行く苗移植機に関する。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a seedling transplanter for planting, for example, rush, rye, etc. seedlings in a field.

〔従来の技術〕[Conventional technology]

例えば藺草用の苗移植機においては、通常の稲用の田植
機と同様に、苗を載置する苗のせ台と、この苗のせ台の
往復横送り駆動に連動して、苗取出し口から苗のせ台の
苗を取り出し圃場に植付けて行くように、循環回転駆動
される植付爪と、苗のせ台が横送りのストロークエンド
に達すると、苗のせ台上の苗を苗取出し口側に送る縦送
り機構とを備えた構造のものがある。For example, in a rice seedling transplanter for rush grass, like a normal rice transplanter, there is a seedling tray on which the seedlings are placed, and the seedling tray is linked to the reciprocating horizontal feed drive of this seedling tray. The planting claw is rotated in a circular manner to take out the seedlings on the seedling stand and plant them in the field. When the seedling stand reaches the end of its horizontal feed stroke, the seedlings on the seedling stand are sent to the seedling take-out port side. Some have a structure equipped with a vertical feed mechanism.

前記構造の場合、苗が縦送り機構によって苗取出し口側
に送られる際に、苗が苗取出し口付近で浮き上がってし
まう場合があり、植付爪が一株の苗を正確に取り出せな
い状態がある。又、植付爪は通常、苗の根部より上方の
茎部を挟持するのであるが、苗が浮き上がると根部を挾
持してしまうので、例えば藺草のように根部付近の新芽
が級長する作物においては、植付爪で新芽を傷めてしま
う場合がある。In the case of the above structure, when the seedlings are sent to the seedling take-out port side by the vertical feed mechanism, the seedlings may float up near the seedling take-out port, and the planting claw may not be able to take out a single seedling accurately. be. In addition, the planting claws usually pinch the stem above the root of the seedling, but if the seedling lifts up, it will pinch the root. , the planting nails may damage the new buds.

そこで、苗取出し口近傍の先頭の苗を苗取出し口に強制
移動させて保持する保持アームを植付爪とは別に備えて
、この保持アームを植付爪の植付作動に先行させ浮き上
った苗を所定位置まで押し下げる構成が提案されている
（特願平１−２１９３６６号参照）。Therefore, a holding arm that forcibly moves and holds the leading seedling near the seedling take-out port is provided separately from the planting claw, and this holding arm is placed in advance of the planting operation of the planting claw so that the seedling floats up. A structure has been proposed in which the seedlings are pushed down to a predetermined position (see Japanese Patent Application No. 1-219366).

〔発明が解決しようとする課題〕[Problem to be solved by the invention]

前述のような保持アームを備えたものにおいては、カム
機構により保持アームを先頭の苗への突入保持位置にま
で強制的に押し出す構造となっている。従って、カム機
構の作動速度が速すぎると、保持アームが所定の突入保
持位置にまで押し出された後に保持アーム自身の慣性に
よって、保持アームがカム機構から離れてさらに菌内に
突入する場合がある。In the device equipped with the above-mentioned holding arm, the structure is such that the holding arm is forcibly pushed out by a cam mechanism to the holding position where it enters into the leading seedling. Therefore, if the operating speed of the cam mechanism is too fast, after the holding arm has been pushed out to the predetermined plunging holding position, the holding arm may separate from the cam mechanism and plunge further into the bacteria due to its own inertia. .

これに対し、植付爪は保持アームが菌内に突入した直後
に苗の根部に突入するので、保持アームが菌内に入り込
み過ぎると保持アームに植付爪が接触して、両者の破損
を招くおそれがある。On the other hand, the planting claw plunges into the root of the seedling immediately after the holding arm enters the fungus, so if the holding arm penetrates too far into the fungus, the planting claw will come into contact with the holding arm, causing damage to both. There is a risk of inviting

ここで本発明は、植付爪と保持アームとの互いの干渉に
よる破損を防止することを目的としている。Here, an object of the present invention is to prevent damage caused by mutual interference between the planting claw and the holding arm.

〔課題を解決するための手段〕[Means to solve the problem]

本発明の特徴は、以上のような苗移植機において、次の
ように構成することにある。つまり、苗取出し口近傍の
先頭の苗を苗取出し口に強制移動させて保持する保持ア
ームを、先頭の苗への突入保持位置と苗から離れた退避
位置とに亘って往復移動可能に支持すると共に、前記植
付爪の植付作動に先行して前記保持アームを突入保持位
置側に移動させるバネ機構と、植付爪の植付作動後に前
記保持アームを退避位置に強制的に戻し駆動するカム機
構とを備えてあることにあり、その作用及び効果は次の
とおりである。A feature of the present invention is that the seedling transplanter as described above is configured as follows. In other words, the holding arm that forcibly moves the leading seedling near the seedling take-out port to the seedling take-out port and holds it is supported so as to be movable back and forth between a holding position for pushing into the leading seedling and a retreating position away from the seedling. Also, a spring mechanism that moves the holding arm to the plunge holding position prior to the planting operation of the planting claw, and a spring mechanism that forcibly drives the holding arm back to the retracted position after the planting operation of the planting claw. The functions and effects of the cam mechanism are as follows.

〔作　用〕[For production]

■　従来構造のようにカム機構を用いた構造では、保持
アームを菌内の所定の突入保持位置にまで強制的に押し
出す構造である為に、保持アームが前記突入保持位置か
らさらに菌内に入り込む余地が生じている。■ In a structure using a cam mechanism like the conventional structure, the holding arm is forcibly pushed out to a predetermined holding position inside the bacteria, so the holding arm may penetrate further into the bacteria from the holding position. There is room.

これに対し、本発明のように保持アームをバネ機構の付
勢力によって菌内に突入させる構造であると、強制的に
突入させる構造ではないので付勢力を特に強力なものに
しない限り、苗の抵抗によって前記突入保持位置の手前
側又はこの突入保持位置付近で止まることになる。On the other hand, if the structure of the present invention is such that the holding arm is pushed into the bacteria by the urging force of a spring mechanism, the holding arm is not forced into the bacteria, so unless the urging force is particularly strong, the seedlings will Due to the resistance, it will stop at or near the plunge holding position.

■　そして、前記従来構造であるとカム機構により保持
アームを菌内に突入させた直後に植付爪を苗の根部に突
入させている。そして、この根部への突入時には一般に
、植付爪に大きな負荷が掛かる。従って、この従来構造
であると植付爪に大きな負荷が掛かるときに保持アーム
駆動時の負荷が重なる為に、負荷の集中により耐久性に
問題が生ずる。(2) In the conventional structure, the planting claw is thrust into the root of the seedling immediately after the holding arm is thrust into the germ by the cam mechanism. In general, a large load is applied to the planting claw when it enters the roots. Therefore, with this conventional structure, when a large load is applied to the planting claw, the load when driving the holding arm overlaps, resulting in a problem in durability due to the concentration of load.

これに対して、本発明では植付爪が苗を取り出した後に
、カム機構によって保持アームを退避位置に戻し駆動す
るので、植付爪に大きな負荷が掛かる時点と保持アーム
戻し駆動時の負荷が掛かる時点とが、時間にズレる為に
、負荷の集中を避けることができる。In contrast, in the present invention, after the planting claw takes out the seedling, the holding arm is driven back to the retracted position by the cam mechanism, so that the load at the time when a large load is applied to the planting claw and when the holding arm is returned is reduced. Since there is a time lag between the times when the load is applied, concentration of the load can be avoided.

〔発明の効果〕〔Effect of the invention〕

以上のように、保持アームを不必要に菌内に突入させる
ことを避ける構造が得られて、植付爪と保持アームとの
接触による破損及び駆動系への負荷の集中が避けられ、
苗移植機全体の耐久性の向上を図ることができた。As described above, a structure is obtained in which the holding arm is prevented from unnecessarily protruding into the bacteria, and damage caused by contact between the planting claw and the holding arm and concentration of load on the drive system are avoided.
We were able to improve the durability of the entire seedling transplanter.

〔実施例〕〔Example〕

以下、本発明の実施例について図面に基づいて説明する
。Embodiments of the present invention will be described below based on the drawings.

第１図は藺草の苗移植機の全体側面を示しており、植付
ミッションケース（１）の後部にて回転駆動されるクラ
ンクアーム（２）に、植付爪（３ａ）を備えた植付アー
ム（３）が取り付けられ、植付ミッションケース（１）
の上部に備えられた前後一対のリンク（４）、（５）に
、保持アーム（６）が取り付けられている。そして、植
付ミッションケース（１）の上面に固定されたガイドレ
ール（７）に沿って、往復スライド駆動される苗のせ台
（８）が備えられ、植付ミッションケース（１）の下部
にフロート（１３）が支持されて藺草の苗移植機が構成
されている。Figure 1 shows the overall side view of the rice seedling transplanter, in which a crank arm (2) that is rotatably driven at the rear of a planting mission case (1) is equipped with a planting claw (3a). The arm (3) is attached and the planting mission case (1)
A holding arm (6) is attached to a pair of front and rear links (4) and (5) provided at the top of the. A seedling stand (8) is provided that is driven to slide back and forth along a guide rail (7) fixed to the top surface of the planting mission case (1), and a seedling stand (8) is mounted on a float at the bottom of the planting mission case (1). (13) is supported to constitute a rice grass seedling transplanter.

以上の構造により、苗のせ台（８）がガイドレール（７
）に沿って設定ストロークずつ間欠的に送られて行くと
共に、苗のせ台（８）が停止している間に植付爪（３ａ
）がガイドレール（７）の苗取出し口（１２）を通過し
て苗（Ａ）を取り出し、圃場（Ｇ）に植付けて行くので
ある。With the above structure, the seedling stand (8) is connected to the guide rail (7).
), and while the seedling stand (8) is stopped, the planting nails (3a
) passes through the seedling take-out port (12) of the guide rail (7), takes out the seedling (A), and plants it in the field (G).

苗のせ台（８）に載置される藺草の苗（Ａ）は第５図に
示すように、左右の大型の仕切り板（９）の間に２組の
小型の仕切り板（１０）を配置したユニット内に入れら
れており、左右の仕切り板（９）を苗のせ台（８）の仕
切り部（８ａ）に載せ付けるのである。As shown in Figure 5, for the strawberry seedlings (A) to be placed on the seedling stand (8), two sets of small partition plates (10) are placed between the left and right large partition plates (9). The left and right partition plates (9) are placed on the partition part (8a) of the seedling stand (8).

これに対して苗のせ台（８）には、第１．４．５図に示
すように苗のせ台（８）が往復スライドのストロークエ
ンドに達した際に、苗（Ａ）を下方のガイドレール（７
）側に送るベルト式の縦送り機構（１１）が設けられて
いる。そして、苗のせ台（８）の下部には前記縦送り機
構（ＩＩ）により送られる苗（Ａ）の根部を持ち上げ案
内しながら、植付爪（３ａ）が取り出す株数に分けて行
く根分は板（Ｉ４）が固定されている。この根分は板（
１４）は側面視三角形状の薄板型であり、後方部分が上
方に反り上っている。そして、この根分は板（１４）は
第４図に示すように苗取出し口（工２）の横幅と同じピ
ッチで配列されており、苗のせ台（８）の間欠的な送り
の設定ストロークも根分は板（１４）のピッチ及び苗取
出し口（１２）の横幅に一致させているのである。On the other hand, when the seedling rest (8) reaches the stroke end of the reciprocating slide, the seedling (A) is guided downward as shown in Figure 1.4.5. Rail (7
) side is provided with a belt-type vertical feeding mechanism (11). At the bottom of the seedling stand (8), while lifting and guiding the roots of the seedlings (A) sent by the vertical feed mechanism (II), the planting claws (3a) divide the roots into the number of plants to be taken out. The plate (I4) is fixed. This root is a plate (
14) is a thin plate type with a triangular shape when viewed from the side, and the rear portion is curved upward. As shown in Fig. 4, the roots of this board (14) are arranged at the same pitch as the width of the seedling outlet (work 2), and the setting stroke for the intermittent feeding of the seedling stand (8) The roots of the seedlings are made to match the pitch of the plates (14) and the width of the seedling outlet (12).

さらに説明すると、ガイドレール（７）には第１図及び
第４図に示すように、苗取出し口（１２）を挾むように
自由回転可能なプーリー（１５）が配置されており、こ
のプーリー（１５）に突起付きのゴムベルト（１６）が
巻回されている。これにより、苗のせ台（８）がガイド
レール（７）に沿って送られる際に、苗（Ａ）の最前部
がゴムベル）　（１６）に載って崩れることなく苗のせ
台（８）と−緒に送られるようにしているのである。To explain further, as shown in FIGS. 1 and 4, a freely rotatable pulley (15) is arranged on the guide rail (7) so as to sandwich the seedling outlet (12). ) is wound with a rubber belt (16) with protrusions. As a result, when the seedling stand (8) is sent along the guide rail (7), the frontmost part of the seedling (A) rests on the rubber bell (16) and is connected to the seedling stand (8) without collapsing. This is done so that they can be sent together.

次に、保持アーム（６）の駆動構造について説明する。Next, the drive structure of the holding arm (6) will be explained.

第１図及び第２図に示すように、クランクアーム（２）
の支持軸（１７）に切欠き（１８ａ）を備えたカム板（
１８）　（カム機構に相当）が固定されており、動力が
伝動チェーン（１９）を介して伝達されて来て、支持軸
（１７）及びカム板（１８）、植付アーム（３）が紙面
反時計方向に回転駆動されるのである。As shown in Figures 1 and 2, the crank arm (2)
A cam plate (
18) (corresponding to a cam mechanism) is fixed, power is transmitted via a transmission chain (19), and the support shaft (17), cam plate (18), and planting arm (3) It is rotated counterclockwise.

これに対して、保持アーム（６）を支持する前側のリン
ク（４）においては、このリンク（４）の基部に固定さ
れる支持軸（２０）にアーム（２１）が固定されており
、このアーム（２１）先端のローラー（２１ａ）がカム
板（１８）の外周面に当て付けられている。さらに、植
付ミッションケース（１）の上面とリンク（４〉とに亘
ってスプリング（２２）　（バネ機構に相当）が架設さ
れており、このスプリング（２２）の付勢力により保持
アーム（６）が苗のせ台（８）側に付勢されている。On the other hand, in the front link (4) that supports the holding arm (6), the arm (21) is fixed to a support shaft (20) fixed to the base of this link (4). A roller (21a) at the tip of the arm (21) is brought into contact with the outer peripheral surface of the cam plate (18). Furthermore, a spring (22) (corresponding to a spring mechanism) is installed between the top surface of the planting mission case (1) and the link (4), and the urging force of this spring (22) causes the holding arm (6) to is biased toward the seedling stand (8).

次に、植付アーム（３）及び保持アーム（６）の動きに
ついて説明する。第１図は植付アーム（３）が苗（Ａ）
を取り出す前の状態であり、アーム（２１）のローラー
（２１ａ）がカム板（１８）の外周面に乗り上げて保持
アーム（６）が苗（Ａ）から離れた退避位置に在る。そ
して、支持軸（１７）が反時計方向に回転して植付アー
ム（３）先端の植付爪（３ａ）が苗取出し口（１２〉の
手前に達すると、第２図に示すように、アーム（２１）
のローラー（２１ａ）がカム板（１８）の切欠き（１８
ａ）に落ち込む。Next, the movements of the planting arm (3) and the holding arm (6) will be explained. In Figure 1, the planting arm (3) is the seedling (A).
The holding arm (6) is in a retracted position away from the seedling (A) with the roller (21a) of the arm (21) riding on the outer peripheral surface of the cam plate (18). Then, when the support shaft (17) rotates counterclockwise and the planting claw (3a) at the tip of the planting arm (3) reaches in front of the seedling removal port (12>), as shown in FIG. Arm (21)
The roller (21a) of the notch (18) of the cam plate (18)
I feel depressed about a).

これにより、スプリング（２２）の付勢力により保持ア
ーム（６）が紙面左方に移動して苗（Ａ）内に突入し、
先頭の苗（Ａ）を下方に押し下げる。As a result, the holding arm (6) moves to the left in the paper due to the biasing force of the spring (22) and plunges into the seedling (A).
Push down the first seedling (A).

そして、植付アーム（３）の植付爪（３ａ）が苗取出し
口（１２）を通過し、−株の苗（Ａ）が植付爪（３ａ）
により取り出される。Then, the planting claw (3a) of the planting arm (3) passes through the seedling take-out port (12), and the seedling (A) of the - stock is placed in the planting claw (3a).
is retrieved by

そして、支持軸（１７）がさらに回転すると第３図に示
すように苗（Ａ）が圃場（Ｇ）に植付けられると共に、
カム板（１８）によりアーム（２１）が押し上げられリ
ンク（４）が紙面右方に揺動操作されて、保持アーム（
６）が苗（Ａ）から離れた退避姿勢に戻るのである。When the support shaft (17) further rotates, the seedlings (A) are planted in the field (G) as shown in FIG.
The arm (21) is pushed up by the cam plate (18), the link (4) is swung to the right in the drawing, and the holding arm (
6) returns to the retracted position away from the seedling (A).

尚、特許請求の範囲の項に図面との対照を便利にする為
に符号を記すが、該記入により本発明は添付図面の構造
に限定されるものではない。Incidentally, although reference numerals are written in the claims section for convenient comparison with the drawings, the present invention is not limited to the structure shown in the accompanying drawings.

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

図面は本発明に係る苗移植機の実施例を示し、第１図は
苗移植機の全体側面図、第２図は第１図に示す状態から
保持アームが菌内に突入し植付爪が苗取出し口の直前に
来た状態を示す側面図、第３図は第２図に示す状態から
保持アームが退避し植付爪が苗取出し口を通過した状態
を示す側面図、第４図は苗のせ台における苗取出し口付
近の平面図、第５図は苗のせ台への苗の載置状態を示す
斜視図である。 （３ａ）・・・・・・植付爪、（６）・・・・・・保持
アーム、（８）・・・・・・苗のせ台、（１１）・・・
・・・縦送り機構、（１２）・・・・・・苗取出し口、
（１８）・・・・・・カム機構、（２２）・・・・・・
バネ機構、 （Ａ）・・・・・・苗、 （Ｇ）・・・・・・圃場。The drawings show an embodiment of the seedling transplanter according to the present invention, and FIG. 1 is an overall side view of the seedling transplanter, and FIG. 2 is a state in which the holding arm enters into the bacteria from the state shown in FIG. FIG. 3 is a side view showing the state in which the holding arm has retreated from the state shown in FIG. 2 and the planting claw has passed through the seedling removal port; FIG. FIG. 5 is a plan view of the vicinity of the seedling take-out port in the seedling stand, and a perspective view showing the state in which the seedlings are placed on the seedling stand. (3a)... Planting claw, (6)... Holding arm, (8)... Seedling stand, (11)...
... Vertical feed mechanism, (12) ... Seedling take-out port,
(18)...Cam mechanism, (22)...
Spring mechanism, (A)...seedling, (G)...field.

Claims (1)

【特許請求の範囲】[Claims] 作物の苗（Ａ）を載置する苗のせ台（８）と、この苗の
せ台（８）の往復横送り駆動に連動して、苗取出し口（
１２）から苗のせ台（８）の苗（Ａ）を取り出し圃場（
Ｇ）に植付けて行くように、循環回転駆動される植付爪
（３ａ）と、前記苗のせ台（８）が横送りのストローク
エンドに達すると、苗のせ台（８）上の苗（Ａ）を苗取
出し口（１２）側に送る縦送り機構（１１）とを備えた
苗移植機であって、前記苗取出し口（１２）近傍の先頭
の苗（Ａ）を苗取出し口（１２）に強制移動させて保持
する保持アーム（６）を、先頭の苗（Ａ）への突入保持
位置と苗（Ａ）から離れた退避位置とに亘って往復移動
可能に支持すると共に、前記植付爪（３ａ）の植付作動
に先行して前記保持アーム（６）を突入保持位置側に移
動させるバネ機構（２２）と、植付爪（３ａ）の植付作
動後に前記保持アーム（６）を退避位置に強制的に戻し
駆動するカム機構（１８）とを備えてある苗移植機。A seedling tray (8) on which crop seedlings (A) are placed and a seedling take-out port (
12) Take out the seedlings (A) from the seedling stand (8) and place them in the field (
When the planting claw (3a), which is driven to rotate in a circular manner, and the seedling tray (8) reach the end of the stroke of horizontal feeding, the seedlings (A) on the seedling tray (8) are planted. ) to the side of the seedling take-out port (12), the seedling transplanter is equipped with a vertical feeding mechanism (11) that sends the seedlings (A) near the seedling take-out port (12) to the seedling take-out port (12). A holding arm (6) that is forcibly moved to hold the seedling (A) is supported so as to be movable back and forth between a holding position for pushing into the leading seedling (A) and a retreating position away from the seedling (A). a spring mechanism (22) for moving the holding arm (6) to the plunge holding position prior to the planting operation of the claw (3a); and a spring mechanism (22) for moving the holding arm (6) to the plunge holding position side after the planting operation of the planting claw (3a); A seedling transplanter equipped with a cam mechanism (18) that forcibly returns and drives the seedling transplanter to a retracted position.
JP32163989A 1989-12-11 1989-12-11 Seedling transplanter Pending JPH03183408A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP32163989A JPH03183408A (en) 1989-12-11 1989-12-11 Seedling transplanter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP32163989A JPH03183408A (en) 1989-12-11 1989-12-11 Seedling transplanter

Publications (1)

Publication Number Publication Date
JPH03183408A true JPH03183408A (en) 1991-08-09

Family

ID=18134747

Family Applications (1)

Application Number Title Priority Date Filing Date
JP32163989A Pending JPH03183408A (en) 1989-12-11 1989-12-11 Seedling transplanter

Country Status (1)

Country Link
JP (1) JPH03183408A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH05137422A (en) * 1991-11-22 1993-06-01 Kubota Corp Seedling transplanter

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH05137422A (en) * 1991-11-22 1993-06-01 Kubota Corp Seedling transplanter

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