JPH0425929Y2 - - Google Patents

Description

【考案の詳細な説明】 〔産業上の利用分野〕 本考案は、マツト状苗を下方の苗取出し口側に
向かつて縦送りする苗縦送り具を備えた苗のせ台
に、載置マツト状苗を載置面側に押圧する押さえ
作用姿勢と浮上させた押さえ解除姿勢とに切替自
在な苗押さえ杆を設けてある苗植付装置に関す
る。[Detailed description of the invention] [Industrial field of application] The present invention is based on a seedling tray equipped with a vertical seedling feeder that vertically feeds pine-shaped seedlings toward the lower seedling take-out port. The present invention relates to a seedling planting device that is equipped with a seedling holding rod that can be switched between a holding position in which the seedlings are pressed toward a mounting surface and a holding release position in which the seedlings are floated.

〔従来の技術〕[Conventional technology]

この種の苗植付装置としては、一般に、苗押さ
え杆を苗のせ台の苗取出し口側に揺動自在に枢着
したものと、苗のせ台と苗押さえ杆との間に平行
四連リンクを介在して、この苗のせ台を苗のせ台
に対して平行又はほぼ平行に移動可能に構成した
ものが知られている。 This type of seedling planting device generally has one in which a seedling holding rod is swingably pivoted to the seedling take-out port side of a seedling stand, and a four-parallel link between the seedling holding stand and the seedling holding stick. It is known that the seedling stand is movable in parallel or substantially parallel to the seedling stand.

〔考案が解決しようとする問題点〕[Problem that the invention attempts to solve]

従来の前者による場合は、苗押さえ杆を押さえ
解除姿勢に切替えたとき、この苗押さえ杆を苗の
せ台から大きく浮上させることができるから、苗
縦送り具等のメンテナンスを容易に行うことがで
きるものの、載置苗の床土部分の厚みが変化した
場合、押さえ作用姿勢に切替えられた苗押さえ杆
が苗のせ台に対して平行とならず、この苗押さえ
杆にて載置苗の床土部分を局部的に押圧する問題
がある。 In the case of the conventional former method, when the seedling holding rod is switched to the holding release position, the seedling holding rod can be lifted up from the seedling resting table, making it easy to maintain the vertical seedling feeder, etc. However, if the thickness of the soil on which the seedlings are placed changes, the seedling holding rod, which has been switched to the holding position, will no longer be parallel to the seedling stand, and the seedling holding rod will not be able to hold the seedlings in the soil. There is a problem in that the parts are pressed locally.

また、後者による場合は、載置苗の床土部分の
厚み変化に拘らず、苗押さえ杆全体で載置苗の床
土部分をほぼ均等に押圧することができるもの
の、苗押さえ杆を押さえ解除姿勢に切替えたとき
の苗のせ台からの浮上代が小さく、メンテナンス
が行いにくくなる問題があつた。 In addition, in the case of the latter, although the whole seedling holding rod can press the soil part of the seedling bed almost evenly regardless of the change in the thickness of the soil part of the seedling bed, the seedling holding rod is released. There was a problem in that the floating distance from the seedling stand was small when changing the posture, making maintenance difficult.

本考案は、苗のせ代と苗押さえ杆との間での合
理的な改造をもつて上述の二律背反的な問題点を
改善する点に目的を有する。 The purpose of the present invention is to improve the above-mentioned trade-off problem by rationally modifying the seedling holding allowance and the seedling holding rod.

〔問題点を解決するための手段〕[Means for solving problems]

かかる目的を達成するために講じられた本考案
による苗植付装置の特徴構成は、前記苗のせ台と
苗押さえ杆との間に、押さえ作用姿勢にある苗押
さえ杆を苗のせ台に対して平行又はほぼ平行に浮
上させたのち、その取付け基端側を支点として浮
上揺動させることが可能な多連リンク機構を設け
た点にあり、その作用・効果は次の通りである。 The characteristic configuration of the seedling planting device according to the present invention, which was taken to achieve such an object, is that the seedling holding rod, which is in a holding position, is placed between the seedling placing stand and the seedling holding rod relative to the seedling placing stand. The device is provided with a multiple link mechanism that can levitate in parallel or almost parallel and then levitate and swing using its attachment base end as a fulcrum, and its functions and effects are as follows.

〔作用〕[Effect]

押さえ作用姿勢にある苗押さえ杆を、押さえ解
除姿勢に切替えるとき、この苗押さえ杆を苗のせ
台に対して平行に浮上させたのち、更に、その取
付け基端側を支点として浮上揺動させるから、押
さえ作用姿勢にあるときには、載置苗の床土部分
の厚み変化に拘らず、苗押さえ杆全体で載置苗の
床土部分をほぼ均等に押圧することができるとと
もに、押さえ解除姿勢にあるときには、苗のせ台
との間に大きなスペースを確保することができ
る。 When switching the seedling holding rod that is in the holding position to the holding release position, the seedling holding rod is floated parallel to the seedling stand and then further floated and swung using its attachment base end as a fulcrum. When in the holding position, the entire seedling holding rod can press the bed soil part of the placed seedlings almost evenly, regardless of changes in the thickness of the bed soil part of the placed seedlings, and at the same time, it is in the holding release position. Sometimes, it is possible to secure a large space between the seedling stand and the seedling stand.

〔考案の効果〕[Effect of idea]

従つて、前述のように苗押さえ杆の姿勢切替を
平行運動と揺動運動との組合にて行うことにより
メンテナンス作業の容易化を図りつつ、載置苗の
床土部分を常に適切に押圧することができる。し
かも、このような苗押さえ杆の動きを多連リンク
機構を介して行うが故に、例えば、苗押さえ杆を
苗のせ台に連設させたブラケツトのガイド溝に沿
つて滑動させる場合のようなこじれの発生を可及
的に少なくすることができ、構成部材の耐久性を
図り乍ら常に確実に作動させることができるに至
つた。 Therefore, as mentioned above, by switching the posture of the seedling holding rod by a combination of parallel movement and rocking movement, maintenance work is facilitated, and the soil part of the bed of the seedlings placed is always appropriately pressed. be able to. Moreover, since the movement of the seedling holding rod is performed via a multiple link mechanism, it may be difficult to move the seedling holding rod, for example, when the seedling holding rod is slid along the guide groove of a bracket connected to the seedling stand. The occurrence of such problems can be minimized, and the components can be operated reliably at all times while ensuring durability.

〔実施例〕〔Example〕

以下、本考案の実施例を六条植え乗用田植機の
苗植付装置について説明する。 An embodiment of the present invention will be described below regarding a seedling planting device for a six-row riding rice transplanter.

１は、乗用機体（図示せず）に対して昇降用リ
ンク機構２を介して駆動昇降自在に連結される植
付伝動ケースであり、この植付伝動ケース１の、
左右方向に適宜間隔を隔てた三箇所から夫々後方
に延出された伝動ケース部１ａには、植付爪３を
強制循環運動させるリンク機構４を設けている。 Reference numeral 1 denotes a planting transmission case that is connected to a passenger aircraft (not shown) via an elevating link mechanism 2 so as to be able to move up and down.
A link mechanism 4 for forcedly circulating the planting claws 3 is provided in the transmission case portion 1a extending rearward from three locations appropriately spaced in the left-right direction.

６は、六枚のマツト状苗を横方向に並列載置可
能で、かつ、左右方向に往復移動可能な対地傾斜
姿勢の苗のせ台であり、この苗のせ台６及びこれ
に載置されたマツト状苗群の下端部を摺動案内す
るレール７には、左右方向に所定間隔を隔てて苗
取出し口８を形成している。 Reference numeral 6 denotes a seedling resting stand which is tilted to the ground and capable of horizontally placing six pine-shaped seedlings in parallel and can be moved back and forth in the left and right directions. A rail 7 that slides and guides the lower end of the pine-shaped seedling group has seedling take-out ports 8 formed at a predetermined interval in the left-right direction.

前記苗のせ台６を横方向に駆動往復移動させる
手段は次の如く構成されている。 The means for driving and reciprocating the seedling stand 6 in the lateral direction is constructed as follows.

即ち、植付伝動ケース１に摺動ならびに回動自
在に貫通支持された横送り軸９の両端に、苗のせ
台６の左右の連結アーム１０を相対回動のみ自在
に連結するとともに、前記横送り軸９の長手方向
中央部には、植付伝動ケース１内に支承された螺
軸１１の螺旋溝内に係合されるコマ部材１２を固
着し、もつて、前記螺軸１１の駆動回転に伴うコ
マ部材１２の横移動により、横送り軸９及び連結
アーム１０を介して苗のせ台６を左右に駆動往復
移動させるべく構成している。 That is, the left and right connecting arms 10 of the seedling stand 6 are connected to both ends of the transverse feed shaft 9 which is slidably and rotatably supported through the planting transmission case 1 so that they can only rotate relative to each other. A piece member 12 that is engaged in a helical groove of a helical shaft 11 supported in the planting transmission case 1 is fixed to the central portion in the longitudinal direction of the feed shaft 9, thereby controlling the driving rotation of the helical shaft 11. Due to the lateral movement of the top member 12, the seedling stand 6 is driven and reciprocated from side to side via the lateral feed shaft 9 and the connecting arm 10.

１３は、苗のせ台６の傾斜下端部に切欠形成さ
れた開口６ａを通して裏側から苗載置面６ｂ側に
突出位置して、載置マツト状苗の床土部に対して
苗取出し口８側への縦送り力を付与するスターホ
イール利用の苗縦送り具であり、前記苗のせ台６
の裏側に回転自在に枢支された縦送り軸１４に固
着されている。 13 is positioned so as to protrude from the back side toward the seedling placement surface 6b through an opening 6a formed in a notch at the lower end of the slanted seedling table 6, and is located on the side of the seedling take-out port 8 with respect to the bed soil of the placed pine-shaped seedlings. This is a vertical seedling feeding tool that uses a star wheel to apply vertical feeding force to the seedling table 6.
It is fixed to a vertical feed shaft 14 which is rotatably supported on the back side.

Ｂは、苗のせ台６がストロークエンドに達した
とき、前記苗縦送り具１３を苗縦送り方向に一定
角度だけ回動させる縦送り駆動機構であり、この
縦送り駆動機構Ｂは次の如く構成されている。 B is a vertical feed drive mechanism that rotates the seedling vertical feeder 13 by a certain angle in the seedling vertical feed direction when the seedling platform 6 reaches the stroke end, and this vertical feed drive mechanism B is as follows. It is configured.

即ち、前記横送り軸９の植付伝動ケース１内に
位置する軸部分の左右両側に、苗のせ台６がスト
ロークエンドに達したとき、前記螺軸１１に固着
された左右一対のアーム１５の一方に接当して、
一定角度だけ強制回動される受動アーム１６を固
着するとともに、前記横送り軸９の、植付伝動ケ
ース１外に位置する軸部分に固着したアーム１７
と前記縦送り軸１３にラチエツト等の一方向回転
クラツチを介して取付けられたアーム１８とをリ
ンク１９を介して枢支連結し、かつ、前記横送り
軸９を戻し方向に弾性付勢すべく構成している。 That is, when the seedling stand 6 reaches the stroke end, a pair of left and right arms 15 fixed to the screw shaft 11 are attached to both left and right sides of the shaft portion of the horizontal feed shaft 9 located inside the planting transmission case 1. Touching one side,
A passive arm 16 that is forcibly rotated by a certain angle is fixed, and an arm 17 is fixed to a shaft portion of the horizontal feed shaft 9 located outside the planting transmission case 1.
and an arm 18 attached to the vertical feed shaft 13 via a one-way rotary clutch such as a ratchet are pivotally connected via a link 19, and the horizontal feed shaft 9 is elastically biased in the return direction. It consists of

２０は、載置マツト状苗を苗のせ台６の苗載置
面６ｂ側に押圧可能な苗押さえ杆であり、この苗
押さえ杆２０と苗のせ台６との間には、押さえ作
用姿勢にある苗押さえ杆２０を苗のせ台６に対し
て平行又はほぼ平行に浮上移動させたのち、その
取付け基端側を支点として浮上揺動させることが
可能な多連リンク機構２１を設けている。 Reference numeral 20 denotes a seedling holding rod capable of pressing the placed pine-shaped seedlings against the seedling placing surface 6b side of the seedling placing table 6, and between this seedling holding rod 20 and the seedling placing table 6, there is a seedling holding rod in a holding position. A multiple link mechanism 21 is provided which can levitate and swing a certain seedling holding rod 20 parallel or almost parallel to the seedling resting table 6, using its attachment base end as a fulcrum.

この多連リンク機構２１を構成するに、苗のせ
台６の左右の仕切り枠６ｃに立設されたブラケツ
ト２２に夫々、左右方向に沿うピン２１ａ，２１
ｂ軸芯周りで夫々揺動自在な左右一対の第１リン
ク２１ｃ及び第２リンク２１ｄを設け、そのう
ち、第２リンク２１ｄの一端部に渡つて、前記苗
押さえ杆２０を苗のせ台６の各苗のせ部に複数本
宛位置する状態で取付けてある支持杆２３を架設
するとともに、前記支持杆２３に固着された第３
リンク２１ｅの係止ピン２１ｆを、前記第１リン
ク２１ｃの一端側に形成された長孔２１ｇ及び前
記ブラケツト２２に形成された側面視ほぼ逆Ｌの
字状の長孔２２ａに係入し、かつ、前記第１リン
ク２１ｃの他端とブラケツト２２との間及び前記
第２リンク２１ｄと苗のせ台６側との間には
夫々、前記苗押さえ杆２０を押さえ作用姿勢側、
つまり、苗のせ台６の苗載置面６ｂ側に移動付勢
するバネ２１ｈ，２１ｉを張設している。 This multiple link mechanism 21 is constructed by connecting pins 21a and 21 along the left and right direction to the brackets 22 erected on the left and right partition frames 6c of the seedling stand 6, respectively.
A pair of left and right first links 21c and a second link 21d are provided, each of which is swingable around the b-axis. A plurality of support rods 23 are installed in the seedling placement area, and a third support rod 23 fixed to the support rod 23 is installed.
The locking pin 21f of the link 21e is engaged with the elongated hole 21g formed on one end side of the first link 21c and the elongated hole 22a formed in the bracket 22, which is approximately inverted L-shaped in side view, and , between the other end of the first link 21c and the bracket 22, and between the second link 21d and the seedling stand 6 side, the seedling holding rod 20 is held down on the side in the working position,
In other words, springs 21h and 21i are tensioned to move and bias the seedling mounting surface 6b of the seedling mounting table 6.

そして、前記第２リンク２１ｄの遊端部をバネ
２１ｈ，２１ｉの弾性付勢力に抗して引き下げる
と、第１リンク２１ｃが最大に揺動するまでは、
苗押さえ杆２０が苗のせ台６に対してほぼ平行に
浮上移動し、それ以降は、係止ピン２１ｆが第１
リンク２１ｃの長孔２１ｇに沿つてブラケツト２
２の逆Ｌ字状長孔２２ａの係止部に係入移動され
るから、これに伴つて苗押さえ杆２０が苗のせ台
６から大きく浮上させた退避姿勢に揺動されるこ
とになる。 Then, when the free end of the second link 21d is pulled down against the elastic biasing forces of the springs 21h and 21i, the first link 21c swings to its maximum.
The seedling holding rod 20 floats and moves almost parallel to the seedling resting table 6, and from then on, the locking pin 21f moves to the first position.
Bracket 2 along long hole 21g of link 21c
Since the seedling holding rod 20 is moved into the locking portion of the inverted L-shaped long hole 22a of No. 2, the seedling holding rod 20 is accordingly swung to a retracted position in which the seedling holding rod 20 is largely raised from the seedling resting table 6.

２４は、前記苗縦送り具１３が縦送り停止状態
にあるとき、前記苗押さえ杆２０を押さえ作用姿
勢に、かつ、苗縦送り具１３が苗縦送り状にある
とき、苗押さえ杆２０を押さえ解除姿勢に切替え
作動させる連動機構である。 24 is for holding down the seedling holding rod 20 when the vertical seedling feeding device 13 is in the vertical feeding stopped state, and holding down the seedling holding rod 20 when the vertical seedling feeding device 13 is in the vertical seedling feeding state. This is an interlocking mechanism that switches to the release position and operates.

この連動機構２４は、苗のせ台６の背面に固着
されたブラケツト２５に、向き姿勢がほぼ90度異
なる第１・第２アーム２４ａ，２４ｂを備えた回
転自在な支軸２４ｃを架設するとともに、前記第
１アーム２４ａと縦送り駆動機構Ｂのアーム１７
とを調節ボルト２４ｄ付きの第３アーム２４ｅを
介して枢支連結し、かつ、前記第２アーム２４ｂ
の先端部には、多連リンク機構２１の第２リンク
２１ｄに枢着されたフツク２４ｆに係合可能なピ
ン２４ｇを固着し、もつて、前記苗縦送り具１３
の苗縦送り作動に連動してフツク２４ｆを押し下
げることにより、押さえ作用姿勢にある苗押さえ
杆２０をバネ２１ｈ，２１ｉの弾性付勢力に抗し
て押さえ解除姿勢に切替え作動させるべく構成し
ている。 This interlocking mechanism 24 has a rotatable support shaft 24c provided with first and second arms 24a, 24b whose orientations differ by approximately 90 degrees, mounted on a bracket 25 fixed to the back surface of the seedling stand 6. The first arm 24a and the arm 17 of the vertical feed drive mechanism B
are pivotally connected via a third arm 24e with an adjustment bolt 24d, and the second arm 24b
A pin 24g that can engage with a hook 24f pivotally connected to the second link 21d of the multiple link mechanism 21 is fixed to the tip of the vertical seedling feeder 13.
By pushing down the hook 24f in conjunction with the operation of vertically feeding the seedlings, the seedling presser rod 20, which is in the holding position, is switched to the holding release position against the elastic biasing force of the springs 21h and 21i. .

前記フツク２４ｆの係止部は、前記ピン２４ｇ
を乗り越え係止可能な傾斜面ａを備えた先窄まり
状態に構成されている。 The locking portion of the hook 24f is connected to the pin 24g.
It is configured in a tapered state with an inclined surface a that can be locked by climbing over the surface.

また、前記調節ボルト２４ｄにより、アーム１
７に固着されたピン１７ａに対する接当タイミン
グを自由に調節することができるから、例えば、
載置苗の床土部分が厚い場合には、接当タイミン
グを早くすることにより、苗縦送り時における苗
押さえ杆２０の押さえ解除遅れを防止することが
できる利点がある。 Furthermore, the adjustment bolt 24d allows the arm 1 to
Since the contact timing with respect to the pin 17a fixed to the pin 7 can be freely adjusted, for example,
When the bed soil portion of the placed seedlings is thick, there is an advantage that by making the contact timing earlier, a delay in releasing the holding of the seedling holding rod 20 during vertical feeding of the seedlings can be prevented.

尚、前記多連リンク機構２１としては上述実施
例の構成に限定されるものではなく、押さえ作用
姿勢にある苗押さえ杆２０を苗のせ台６に対して
平行又はほぼ平行に浮上させたのち、その取付け
基端側を支点として浮上揺動させることができる
ものであれば如何なる構造を作用してもよい。 Note that the multiple link mechanism 21 is not limited to the configuration of the above-mentioned embodiment, and after the seedling holding rod 20 in the holding position is floated parallel or almost parallel to the seedling rest 6, Any structure may be used as long as it can be floated and swung using its attachment base end as a fulcrum.

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

図面は本考案に係る苗植付装置の実施例を示
し、第１図乃至第３図は夫々要部の縦断側面図、
第４図は要部の展開断面図、第５図は苗のせ台の
駆動系を示す一部切欠平面図、第６図は乗用田植
機の後部側面図である。 ６……苗のせ台、８……苗取出し口、１３……
苗縦送り具、２０……苗押さえ杆、２１……多連
リンク機構。 The drawings show an embodiment of the seedling planting device according to the present invention, and FIGS. 1 to 3 are longitudinal sectional side views of the main parts, respectively.
FIG. 4 is a developed sectional view of the main parts, FIG. 5 is a partially cutaway plan view showing the drive system of the seedling stand, and FIG. 6 is a rear side view of the riding rice transplanter. 6... Seedling stand, 8... Seedling take-out port, 13...
Seedling vertical feeder, 20...Seedling holding rod, 21...Multiple link mechanism.

Claims (1)

【実用新案登録請求の範囲】 １ マツト状苗を下方の苗取出し口８側に向かつ
て縦送りする苗縦送り具１３を備えた苗のせ台
６に、載置マツト状苗を載置面側に押圧する押
さえ作用姿勢と浮上させた押さえ解除姿勢とに
切替自在な苗押さえ杆２０を設けてある苗植付
装置であつて、前記苗のせ台６と苗押さえ杆２
０との間に、押さえ作用姿勢にある苗押さえ杆
２０を苗のせ台６に対して平行又はほぼ平行に
浮上させたのち、その取付け基端側を支点とし
て浮上揺動させることが可能な多連リンク機構
２１を設けてある苗植付装置。 ２ 前記多連リンク機構２１が苗のせ台６に載置
されたマツト状苗を下方の苗取出し口８側に向
かつて縦送りする苗縦送り具１３に連動されて
いて、かつ、苗縦送り具１３が送り停止状態に
あるときには苗押さえ杆２０を押さえ作用姿勢
に、かつ、苗縦送り具１３が苗送り状態にある
ときには苗押さえ杆２０を押さえ解除姿勢に切
替え作動させるべく構成されたものである実用
新案登録請求の範囲第１項に記載の苗植付装
置。[Scope of Claim for Utility Model Registration] 1. Place the pine-shaped seedlings on a seedling tray 6 equipped with a seedling vertical feeder 13 that vertically feeds the pine-shaped seedlings toward the lower seedling take-out port 8 side. The seedling planting device is equipped with a seedling holding rod 20 that can be switched between a holding position in which the seedlings are placed and a holding release position in which the seedlings are lifted up.
0, the seedling holding rod 20 in the holding position can be floated parallel or almost parallel to the seedling rest 6, and then floated and swung using its attachment base end as a fulcrum. A seedling planting device provided with a linkage mechanism 21. 2. The multiple link mechanism 21 is interlocked with a seedling vertical feeder 13 that vertically feeds the pine-shaped seedlings placed on the seedling tray 6 toward the lower seedling take-out port 8, and When the tool 13 is in the feeding stop state, the seedling presser rod 20 is in the pressing position, and when the vertical seedling feeder 13 is in the seedling feeding state, the seedling presser rod 20 is switched to the pressing release position. A seedling planting device according to claim 1 of the utility model registration claim.