JP7083155B2 - Seeding device for seedling raising container - Google Patents

Seeding device for seedling raising container Download PDF

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JP7083155B2
JP7083155B2 JP2018081356A JP2018081356A JP7083155B2 JP 7083155 B2 JP7083155 B2 JP 7083155B2 JP 2018081356 A JP2018081356 A JP 2018081356A JP 2018081356 A JP2018081356 A JP 2018081356A JP 7083155 B2 JP7083155 B2 JP 7083155B2
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transfer
transfer table
seedling raising
table frame
raising container
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JP2019187254A (en
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仁 黒子
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株式会社スズテック
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    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P60/00—Technologies relating to agriculture, livestock or agroalimentary industries
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Description

本発明は、育苗容器用播種装置に関するものである。 The present invention relates to a seeding device for a seedling raising container.

従来、育苗容器を移送する移送ロールを複数並設した移送台の上方に、下方を移送中の育苗容器に床土を供給する床土供給装置と種子供給装置と灌水装置と覆土供給装置を設けた構成は、公知である（特許文献１参照） Conventionally, a floor soil supply device, a seed supply device, a irrigation device, and a soil cover supply device for supplying soil to the seedling raising container being transferred are provided above the transfer table in which a plurality of transfer rolls for transferring the seedling raising container are arranged side by side. The configuration is known (see Patent Document 1).

特開２０１３－１４１４２８号公報Japanese Unexamined Patent Publication No. 2013-141428

前記公知例は、単に、移送台に育苗容器を供給し、供給した育苗容器が移送中に土や種子を供給する構成のため、移送中の育苗容器間に隙間があると、育苗容器内に土や種子が入らずに溢れて無駄になるという課題がある。
また、溢れた土や種子が播種装置の各部に付着し、作動が安定しないという課題がある。
本願は、育苗容器内に土や種子が入らずに溢れるのを防止するために減速手段の構成を採用すると共に、減速手段の採用に伴う下手側の移送手段に掛かる負荷を軽減できるようにしたものであり、特に、プラント播種装置と当業者に称されている時間当たりの播種可能な育苗容器の数の多い播種装置において、顕著な効果を奏するようにしたものである。 In the above-mentioned known example, the seedling raising container is simply supplied to the transfer table, and the supplied seedling raising container supplies soil and seeds during the transfer. Therefore, if there is a gap between the seedling raising containers during the transfer, the seedling raising container may be filled with the seedling raising container. There is a problem that soil and seeds do not enter and overflow and are wasted.
In addition, there is a problem that the overflowing soil and seeds adhere to each part of the sowing device and the operation is not stable.
In the present application, a configuration of a deceleration means is adopted in order to prevent soil and seeds from overflowing into the seedling raising container, and the load on the lower transfer means due to the adoption of the deceleration means can be reduced. In particular, it is intended to exert a remarkable effect in a plant sowing device and a sowing device having a large number of seedling raising containers that can be sown per hour, which is referred to by those skilled in the art.

請求項１の発明は、育苗容器を移送する移送手段２を有する移送台１の上方位置に、育苗容器に床土を供給する床土供給装置１５と、育苗容器に種子を供給する種子供給装置１７と、育苗容器に水を供給する灌水装置と、育苗容器に覆土を供給する覆土供給装置２５とを設けて構成した播種装置において、前記移送台１は、支脚３により床上に載置され前記移送手段２を有する移送台フレーム５が育苗容器の移送方向に分割形成し、移送台１の各上手側移送台フレーム５と各下手側移送台フレーム５との間には上手側移送台フレーム５から下手側移送台フレーム５へ回転を伝達する回転伝動部３０をそれぞれ設け、各回転伝動部３０のうち所定の回転伝動部３０には上手側移送台フレーム５から下手側移送台フレーム５へ伝達する回転を減速する減速手段３５を設けた播種装置としたものである。
請求項２の発明は、各回転伝動部３０のうち減速手段３５を設けた回転伝動部３０にはワンウェイクラッチ３６を設けた播種装置としたものである。
請求項３の発明は、上手側移送台フレーム５の移送中の後続育苗容器が下手側の移送台フレーム５の移送中の先行育苗容器を押すと、前記ワンウェイクラッチ３６が空転する構成とした播種装置としたものである。
請求項４の発明は、各移送台フレーム５のうち、前記種子供給装置１７を設けた移送台フレーム５と、該種子供給装置１７を設けた移送台フレーム５の移送方向上手側の移送台フレーム５との間に設けた回転伝動部３０には、減速手段３５およびワンウェイクラッチ３６を設けた播種装置としたものである。
請求項５の発明は、前記種子供給装置１７を設けた移送台フレーム５の移送方向上手側の移送台フレーム５には、前記床土供給装置１５、または、前記床土供給装置１５および灌水装置、あるいは、移送手段２のみの何れかを設けた播種装置としたものである。
請求項６の発明は、前記回転伝動部３０は、上手側移送台フレーム５に設けた上手側伝達歯車３１と、下手側移送台フレーム５に設けた下手側歯車３２と、前記上手側伝達歯車３１と前記下手側歯車３２に掛け回したチェン３３とを有し、回転伝動部３０の上手側伝達歯車３１と下手側歯車３２との歯数を相違させて前記減速手段３５を構成し、前記下手側歯車３２にワンウェイクラッチ３６を内蔵させて構成した播種装置としたものである。The invention according to claim 1 is a bed soil supply device 15 for supplying bed soil to the seedling raising container and a seed supply device for supplying seeds to the seedling raising container at a position above the transfer table 1 having the transfer means 2 for transferring the seedling raising container. In a sowing device configured by providing a irrigation device for supplying water to the seedling raising container and a soil covering device 25 for supplying soil covering to the seedling raising container, the transfer table 1 is placed on the floor by a support leg 3 and described above. The transfer table frame 5 having the transfer means 2 is divided and formed in the transfer direction of the seedling raising container, and the upper transfer table frame 5 is formed between each upper transfer table frame 5 and each lower side transfer table frame 5 of the transfer table 1. Rotation transmission units 30 for transmitting rotation from the lower side transfer table frame 5 to the lower side transfer table frame 5 are provided respectively, and transmission from the upper side transfer table frame 5 to the lower side transfer table frame 5 is provided to a predetermined rotation transmission unit 30 among the rotation transmission units 30. It is a seeding device provided with a deceleration means 35 for decelerating the rotation.
The invention of claim 2 is a seeding device in which a one-way clutch 36 is provided in the rotary transmission section 30 provided with the deceleration means 35 among the rotary transmission sections 30.
According to the third aspect of the present invention, when the succeeding seedling raising container during transfer of the upper transfer table frame 5 pushes the preceding seedling raising container during transfer of the lower transfer table frame 5, the one-way clutch 36 idles. It is a device.
The invention of claim 4 is the transfer table frame 5 on the upper side in the transfer direction of the transfer table frame 5 provided with the seed supply device 17 and the transfer table frame 5 provided with the seed supply device 17 among the transfer table frames 5. The rotary transmission unit 30 provided between the vehicle and the vehicle 5 is provided with a speed reducing means 35 and a one-way clutch 36 as a seeding device.
According to the fifth aspect of the present invention, the floor soil supply device 15, or the floor soil supply device 15 and the irrigation device are provided on the transfer table frame 5 on the upper side in the transfer direction of the transfer table frame 5 provided with the seed supply device 17. Or, it is a seeding device provided with any one of the transfer means 2.
According to the sixth aspect of the present invention, the rotary transmission unit 30 includes an upper transmission gear 31 provided on the upper transfer base frame 5, a lower transmission gear 32 provided on the lower transfer base frame 5, and the upper transmission gear. The deceleration means 35 is configured by having 31 and a chain 33 hung around the lower gear 32, and having different numbers of teeth between the upper transmission gear 31 and the lower gear 32 of the rotation transmission unit 30. The seeding device is configured by incorporating the one-way clutch 36 in the lower gear 32.

請求項１の発明では、 育苗容器を移送する移送台１を、移送手段２を有する移送台フレーム５にそれぞれ分割形成し、上手側移送台フレーム５と下手側移送台フレーム５との間に設けた回転伝動部３０に、移送方向上手側から移送方向下手側へ減速して回転伝達する減速手段３５を設けているので、育苗容器を連続してしかも隙間のない移送が可能になり、無駄のない土や種子の供給が可能となる。
請求項２の発明では、各回転伝動部３０のうち減速手段３５を設けた回転伝動部３０には、ワンウェイクラッチ３６を設けているので、減速手段３５により移送中の育苗容器の移動速度の速度差による抵抗をワンウェイクラッチ３６により吸収でき、これにより、移送手段２に掛かる負荷を軽減することができ、育苗容器の隙間のない移送と移送抵抗の発生防止とを両立させることができる。
請求項３の発明では、後続育苗容器が先行育苗容器を押すと、ワンウェイクラッチ３６が空転する構成としているので、移送手段２に掛かる負荷をワンウェイクラッチ３６が吸収し、育苗容器の隙間のない移送と移送抵抗の発生防止とを両立させることができる。
請求項４の発明では、各移送台フレーム５のうち、前記種子供給装置１７を設けた移送台フレーム５と、該種子供給装置１７を設けた移送台フレーム５の移送方向上手側の移送台フレーム５との間に設けた回転伝動部３０には減速手段３５およびワンウェイクラッチ３６を設けているので、少なくとも、種子供給装置１７の下方にて先行育苗容器と後行育苗容器とは隙間なく連続移送され、種子が育苗容器から溢れ出るのを防止でき播種コストを低減できる。
請求項５の発明では、前記種子供給装置１７を設けた移送台フレーム５の移送方向上手側の移送台フレーム５には、前記床土供給装置１５または前記床土供給装置１５および灌水装置、あるいは、移送手段２のみを設けているので、少なくとも、種子供給装置１７における隙間のない育苗容器の移送を実現でき、播種装置の製造コストダウンを図ることができる。
請求項６の発明では、回転伝動部３０に、減速手段３５とワンウェイクラッチ３６とを簡単に設けることができ、既存の播種装置であっても、回転伝動部３０を交換するだけで、育苗容器の隙間のない移送と移送抵抗の発生防止とを実現できる。 In the invention of claim 1, the transfer table 1 for transferring the seedling raising container is separately formed on the transfer table frame 5 having the transfer means 2, and is provided between the upper transfer table frame 5 and the lower transfer table frame 5. Since the rotation transmission unit 30 is provided with a deceleration means 35 that decelerates and transmits rotation from the upper side in the transfer direction to the lower side in the transfer direction, the seedling raising container can be continuously transferred without a gap, which is wasteful. It is possible to supply no soil and seeds.
In the invention of claim 2, since the one-way clutch 36 is provided in the rotary transmission unit 30 provided with the deceleration means 35 among the rotation transmission units 30, the speed of the moving speed of the seedling raising container being transferred by the deceleration means 35. The resistance due to the difference can be absorbed by the one-way clutch 36, whereby the load applied to the transfer means 2 can be reduced, and it is possible to achieve both transfer without a gap in the seedling raising container and prevention of generation of transfer resistance.
In the invention of claim 3, since the one-way clutch 36 is configured to idle when the succeeding seedling raising container pushes the preceding seedling raising container, the one-way clutch 36 absorbs the load applied to the transfer means 2 and transfers the seedling raising container without a gap. And prevention of transfer resistance can be achieved at the same time.
In the invention of claim 4, among the transfer table frames 5, the transfer table frame 5 provided with the seed supply device 17 and the transfer table frame 5 provided with the seed supply device 17 are on the upper side in the transfer direction. Since the deceleration means 35 and the one-way clutch 36 are provided in the rotary transmission unit 30 provided between the seed and the seed supply unit 5, at least the preceding seedling raising container and the succeeding seedling raising container are continuously transferred without a gap below the seed supply device 17. Therefore, it is possible to prevent the seeds from overflowing from the seedling raising container and reduce the sowing cost.
In the invention of claim 5, the transfer table frame 5 on the upper side in the transfer direction of the transfer table frame 5 provided with the seed supply device 17 has the floor soil supply device 15, the floor soil supply device 15, and the irrigation device, or Since only the transfer means 2 is provided, at least the transfer of the seedling raising container without a gap in the seed supply device 17 can be realized, and the manufacturing cost of the sowing device can be reduced.
In the invention of claim 6, the deceleration means 35 and the one-way clutch 36 can be easily provided in the rotary transmission unit 30, and even in the existing sowing device, the seedling raising container can be simply replaced by the rotary transmission unit 30. It is possible to realize transfer without gaps and prevention of transfer resistance.

播種装置の側面図。Side view of the seeding device. 移送台フレームの一部概略平面図。Partial schematic plan view of the transfer platform frame. 同概略側面図。The schematic side view. 回転伝動部の側面図。Side view of the rotation transmission part. 回転伝動部の平面図。Top view of the rotation transmission part. ワンウェイクラッチの模式図。Schematic diagram of a one-way clutch.

本発明の一実施形態を図面により説明すると、１は育苗容器に床土等を供給する供給装置等を設けた播種装置の育苗容器を移送する移送台であり、移送台１には育苗容器を移送する任意の移送手段（搬送コンベア）２を設ける。この移送手段２は育苗容器を移送できればよく、移送ベルトあるいは移送ロールにより構成する。
本実施形態では、移送台１を、支脚３を有する移送台フレーム５の左右一対のフレーム部材６の間に前記移送ロール７のロール回転軸８を軸装し、この移送ロール７を移送方向に複数並設して構成している（図１～図３）。 Explaining one embodiment of the present invention with reference to the drawings, 1 is a transfer table for transferring a seedling raising container of a seeding device provided with a supply device or the like for supplying bed soil or the like to the seedling raising container, and the seedling raising container is transferred to the transfer table 1. Arbitrary transfer means (conveyor) 2 for transfer is provided. The transfer means 2 only needs to be able to transfer the seedling raising container, and is configured by a transfer belt or a transfer roll.
In the present embodiment, the transfer table 1 is mounted with the roll rotation shaft 8 of the transfer roll 7 between the pair of left and right frame members 6 of the transfer table frame 5 having the support legs 3, and the transfer roll 7 is mounted in the transfer direction. A plurality of them are arranged side by side (FIGS. 1 to 3).

各ロール回転軸８の左右の何れか一側には移送伝達歯車１０を固定状態に取付け、各移送伝達歯車１０には無端状のチェン１１を掛け回し、コンベア駆動モータ１２によりチェン１１を回転させて移送ロール７を駆動回転させている。
１２Ａ、１２Ｂは歯車、１２Ｃはチェンである。
１３は各移送ロール７に回転伝達するチェン１１を支持するフレーム部材６に設けたチェン支持レールであり、フレーム部材６に対して上下自在に取付ける（図３、なお、図３はフレーム部材６の内側から見た側面図である）。
なお、前記移送手段２を移送ベルトにより構成する場合は、図２のロール回転軸８の移送ロール７の部分にプーリーを設け、各プーリーに移送ベルトを掛け回して構成すればよい。 A transfer transmission gear 10 is fixedly attached to either the left or right side of each roll rotation shaft 8, an endless chain 11 is hung around each transfer transmission gear 10, and the chain 11 is rotated by a conveyor drive motor 12. The transfer roll 7 is driven and rotated.
12A and 12B are gears, and 12C is a chain.
Reference numeral 13 is a chain support rail provided on the frame member 6 that supports the chain 11 that is rotationally transmitted to each transfer roll 7, and is vertically attached to the frame member 6 (FIG. 3, FIG. 3 is the frame member 6). It is a side view seen from the inside).
When the transfer means 2 is configured by a transfer belt, a pulley may be provided on the transfer roll 7 portion of the roll rotation shaft 8 of FIG. 2, and the transfer belt may be hung around each pulley.

移送台１の始端側の上方所定位置には床土供給装置（土供給装置）１５を設ける。床土供給装置１５は下方を移動する育苗容器に上方から床土を落下させて供給する。
床土供給装置１５の移送方向下手側の前記移送台１には、床土均平回転ブラシ１６を設ける。床土均平回転ブラシ１６は床土供給装置１５にて予め余分に前記育苗容器へ供給した床土を上側の所定量分掻取りながら均平すると共に、育苗容器の前後および左右の壁上面の土を除去する。
床土供給装置１５の移送方向下手側の移送台１には、育苗容器に種子を供給する種子供給装置１７を設ける。種子供給装置１７は上部に種子供給ホッパー１８を有し、種子供給ホッパー１８の下方に種子を繰出す軸心が左右方向の大径の横軸繰出ロール１９を設けて構成している。 A floor soil supply device (soil supply device) 15 is provided at a predetermined position above the starting end side of the transfer table 1. The floor soil supply device 15 drops the floor soil from above and supplies it to the seedling raising container that moves downward.
A floor soil leveling rotary brush 16 is provided on the transfer table 1 on the lower side in the transfer direction of the floor soil supply device 15. The floor soil leveling rotary brush 16 flattens the floor soil that has been additionally supplied to the seedling raising container in advance by the floor soil supply device 15 while scraping a predetermined amount on the upper side, and at the same time, the front and back of the seedling raising container and the upper surfaces of the left and right walls are leveled. Remove the soil.
A seed supply device 17 for supplying seeds to the seedling raising container is provided on the transfer table 1 on the lower side in the transfer direction of the floor soil supply device 15. The seed supply device 17 has a seed supply hopper 18 at the upper portion, and is configured by providing a horizontal axis feeding roll 19 having a large diameter in the left-right direction in which the axis for feeding seeds is below the seed feeding hopper 18.

図１の播種装置では、種子供給装置１７の移送方向上手側に上手側灌水装置２０を設け、種子供給装置１７の移送方向下手側に下手側灌水装置２１を設けている。
上手側灌水装置２０および下手側灌水装置２１の構成は任意であるが、一例を示すと、前後一対の左右方向の灌水横筒部２２に左右方向に所定間隔を置いてノズル孔を複数形成して構成し、上手側灌水装置２０には、図示は省略するが、水量計（圧力計）と水量調節バルブと開閉バルブとリリーフ弁等を設け、灌水横筒部２２には水源（図示省略）に接続したホース（図示省略）を接続する。 In the sowing device of FIG. 1, the upper side irrigation device 20 is provided on the upper side in the transfer direction of the seed supply device 17, and the lower side irrigation device 21 is provided on the lower side in the transfer direction of the seed supply device 17.
The configuration of the upper side irrigation device 20 and the lower side irrigation device 21 is arbitrary, but as an example, a plurality of nozzle holes are formed in a pair of front-rear left-right irrigation horizontal cylinder portions 22 at predetermined intervals in the left-right direction. Although not shown, the upper irrigation device 20 is provided with a water meter (pressure gauge), a water amount control valve, an on-off valve, a relief valve, and the like, and the irrigation horizontal cylinder 22 is provided with a water source (not shown). Connect the hose (not shown) connected to.

上手側灌水装置２０と下手側灌水装置２１は、前記移送台１に着脱自在に取付ける構成とし、育苗容器に供給した床土に灌水する場合、床土の性状や種子の品種等により、種子供給の前に灌水する方法を「前灌水」と当業者は呼び、種子供給の後に床土および種子に灌水する方法を「後灌水」と当業者は呼んでおり、この「前灌水」と「後灌水」とに対応するように、上手側灌水装置２０と下手側灌水装置２１は取付位置の変更あるいは灌水開始および停止状態の切替可能に構成している。
なお、「前灌水」と「後灌水」の上手側灌水装置２０と下手側灌水装置２１を設置するためのスペースの関係で、上手側灌水装置２０と下手側灌水装置２１の設置位置に対応させて前記種子供給装置１７を前後に取付位置変更自在に構成してもよい。 The upper side irrigation device 20 and the lower side irrigation device 21 are configured to be detachably attached to the transfer table 1, and when irrigating the floor soil supplied to the seedling raising container, seeds are supplied depending on the properties of the floor soil and the seed varieties. The method of irrigating before the seeds is called "pre-irrigation", and the method of irrigating the soil and seeds after seed supply is called "post-irrigation". The upper side irrigation device 20 and the lower side irrigation device 21 are configured so that the mounting position can be changed or the irrigation start / stop state can be switched so as to correspond to "irrigation".
In addition, due to the space for installing the upper side irrigation device 20 and the lower side irrigation device 21 of "pre-irrigation" and "post-irrigation", it corresponds to the installation position of the upper side irrigation device 20 and the lower side irrigation device 21. The seed supply device 17 may be configured so that the mounting position can be freely changed back and forth.

種子供給装置１７の下手側には、覆土供給装置２５を設ける。覆土供給装置２５の構成は任意であり、上方より下方を通過する育苗容器に覆土を供給できればよい。
２６は育苗容器の縁に乗った種子や土を除去する回転ブラシ、２７は操作パネル、２８は土受け回収シート、２９は水受け回収シート、２９Ａは種子回収篭である。 A soil covering supply device 25 is provided on the lower side of the seed supply device 17. The configuration of the soil covering supply device 25 is arbitrary, and it is sufficient that the soil covering can be supplied to the seedling raising container passing from above to below.
26 is a rotating brush for removing seeds and soil on the edge of the seedling raising container, 27 is an operation panel, 28 is a soil receiving recovery sheet, 29 is a water receiving collecting sheet, and 29A is a seed collecting basket.

しかして、市場における播種装置は、時間当たり２００個（箱）から２０００個（箱）までの育苗容器を播種しうるように播種能力に差があり、この播種能力の差によって移送台１の長さが相違し、播種能力が高く、時間当たりの播種可能な育苗容器数が多い播種装置では育苗容器の搬送速度は速くなり、速い移送速度で移送中の育苗容器に種子等を供給するには、各供給装置との間隔を広くする必要が生じ、播種能力の高い播種装置の移送台１は播種能力の低い播種装置の移送台１に比して全長が長くなる傾向となる。 However, the sowing equipment in the market has a difference in sowing ability so that 200 (box) to 2000 (box) seedling raising containers can be sown per hour, and the difference in sowing ability causes the length of the transfer table 1. In a seeding device with a different sowing ability, a large number of seedling raising containers that can be sown per hour, the transfer speed of the seedling raising container is high, and in order to supply seeds etc. to the seedling raising container being transferred at a high transfer speed. It becomes necessary to widen the distance from each supply device, and the transfer table 1 of the sowing device having a high sowing ability tends to have a longer total length than the transfer table 1 of the sowing device having a low sowing ability.

すなわち、育苗容器の移送速度が速いと、育苗容器の床土に灌水しても直ぐに染み込まず、土正面の水中に種子が浮遊して均等な播種ができという不具合が生じるので、必然的に移送台１の全長が長くなることになる。
一方、この全長の長い移送台１の運搬・設置は容易でないので、本発明では播種能力の高い播種装置を含めた播種装置の移送台１を、支脚３と移送手段２とを有する移送台フレーム５に予め分割形成した移送台フレーム５を複数連結する構成とし、各移送台フレーム５の始端部と終端部との間には移送方向上手側移送台フレーム５の移送手段２の回転を、移送方向下手側の移送台フレーム５の移送手段２に伝達する回転伝動部３０を設けている。 That is, if the transfer speed of the seedling raising container is high, even if the soil of the seedling raising container is irrigated, the seeds do not immediately soak into the soil, and the seeds float in the water in front of the soil, resulting in uniform sowing. The total length of the table 1 will be longer.
On the other hand, since it is not easy to transport and install the transfer table 1 having a long overall length, in the present invention, the transfer table 1 of the seeding device including the seeding device having a high seeding ability is provided with a transfer table frame having a support leg 3 and a transfer means 2. A plurality of transfer table frames 5 previously divided and formed in 5 are connected, and the rotation of the transfer means 2 of the transfer table frame 5 on the upper side in the transfer direction is transferred between the start end portion and the end portion of each transfer table frame 5. A rotary transmission unit 30 for transmitting to the transfer means 2 of the transfer table frame 5 on the lower side in the direction is provided.

回転伝動部３０は、移送方向上手側移送台フレーム５に設けた上手側伝達歯車３１と、移送方向下手側移送台フレーム５に設けた下手側歯車３２と、上手側伝達歯車３１と下手側歯車３２の間に掛け回すチェン３３とにより構成する。
すなわち、移送方向上手側移送台フレーム５の終端部の移送ロール７のロール回転軸８の、前記移送伝達歯車１０を設けていない端部に上手側伝達歯車３１を固定状態に取付け、移送方向下手側の移送台フレーム５の始端部の移送ロール７のロール回転軸８の、前記移送伝達歯車１０を設けていない端部に下手側歯車３２を固定状態に取付け、この上手側伝達歯車３１と下手側歯車３２の間にチェン３３を掛け回して前記回転伝動部３０を構成している。 The rotation transmission unit 30 includes an upper transmission gear 31 provided on the upper transfer table frame 5 in the transfer direction, a lower gear 32 provided on the lower transfer table frame 5 in the transfer direction, an upper transmission gear 31 and a lower gear. It is composed of a chain 33 that is hung between 32.
That is, the upper transmission gear 31 is fixedly attached to the end of the roll rotation shaft 8 of the transfer roll 7 at the end of the upper transfer table frame 5 in the transfer direction, which is not provided with the transfer transmission gear 10, and is lower in the transfer direction. The lower side gear 32 is fixedly attached to the end of the roll rotation shaft 8 of the transfer roll 7 at the start end of the transfer base frame 5 on the side where the transfer transmission gear 10 is not provided, and the upper side transmission gear 31 and the lower side are attached. The chain 33 is hung between the side gears 32 to form the rotation transmission unit 30.

この場合、複数設けた回転伝動部３０のうち、所定部分の回転伝動部３０あるいは全ての回転伝動部３０には、移送方向下手側の移送手段２の回転を、移送方向上手側の移送手段２の回転よりも減速する減速手段３５を設ける。
そのため、育苗容器を連続してしかも隙間のない移送が可能になり、無駄のない種子等の供給が可能となる。
前記減速手段３５の構成は任意であるが、回転伝動部３０の下手側歯車３２と上手側伝達歯車３１の歯数を相違させることで構成し、本実施形態では、上手側伝達歯車３１の歯数を１６丁とし、下手側歯車３２の歯数を１７丁と歯数を多くしている。 In this case, among the plurality of rotational transmission units 30 provided, the rotation of the transfer means 2 on the lower side in the transfer direction is transferred to the rotation transmission unit 30 or all the rotation transmission units 30 in the predetermined portion, and the transfer means 2 on the upper side in the transfer direction is applied. A deceleration means 35 that decelerates more than the rotation of the vehicle is provided.
Therefore, the seedling raising container can be continuously transferred without any gap, and seeds and the like can be supplied without waste.
The configuration of the speed reduction means 35 is arbitrary, but it is configured by different numbers of teeth of the lower gear 32 of the rotary transmission unit 30 and the upper transmission gear 31, and in the present embodiment, the teeth of the upper transmission gear 31 are configured. The number is 16, and the number of teeth of the lower gear 32 is 17 and the number of teeth is increased.

しかして、回転伝動部３０に減速手段３５を設けると、各育苗容器は隙間なく移送されるが、移送方向の上手側移送台フレーム５から移送された後行育苗容器が下手側移送台フレーム５に乗り移るとき、後行育苗容器が先行育苗容器を押すと、下手側移送台フレーム５の移送手段２に負荷を与えることになり、下手側移送台フレーム５の移送手段２のみ耐久性が低下するということになる。
そこで、複数設けた回転伝動部３０のうち、所定部分の回転伝動部３０あるいは全ての回転伝動部３０には、移送方向上手側と移送方向下手側の伝動経路中に、ワンウェイクラッチ３６を設け、減速手段３５による移送手段２への負荷という不具合を解消し、育苗容器の隙間のない連続移送と、移送手段２への負荷の軽減とを両立させている。 When the deceleration means 35 is provided in the rotary transmission unit 30, each seedling raising container is transferred without a gap, but the trailing seedling raising container transferred from the upper transfer table frame 5 in the transfer direction is the lower transfer table frame 5. If the trailing seedling raising container pushes the preceding seedling raising container when transferring to, a load is applied to the transfer means 2 of the lower side transfer table frame 5, and the durability of only the transfer means 2 of the lower side transfer table frame 5 is lowered. It turns out that.
Therefore, among the plurality of rotary transmission units 30, the rotation transmission unit 30 of a predetermined portion or all the rotation transmission units 30 are provided with a one-way clutch 36 in the transmission path on the upper side in the transfer direction and the lower side in the transfer direction. The problem of the load on the transfer means 2 by the deceleration means 35 is solved, and the continuous transfer without gaps of the seedling raising container and the reduction of the load on the transfer means 2 are achieved at the same time.

ワンウェイクラッチ３６は前記回転伝動部３０の下手側歯車３２に内蔵して設け、ワンウェイクラッチ３６内蔵下手側歯車３２は上手側移送台フレーム５から乗り移る後行育苗容器が下手側移送台フレーム５の移送中の先行育苗容器を押すと、ワンウェイクラッチ３６が空転する構成とする。
ワンウェイクラッチ３６の具体的構成は任意であり、一例を示すと、ロール回転軸８に回転体４０を設け、回転体４０の外周面には放射方向に突出する突起４１を設け、下手側歯車３２の内周面と突起４１の外面との間に楔状の溝４２を形成し、溝４２内にボール４３とバネ４４を設け、バネ４４は溝４２の幅狭部側にボール４３が常時移動するように付勢する構成とする。 The one-way clutch 36 is built in the lower side gear 32 of the rotation transmission unit 30, and the lower side gear 32 with the built-in one-way clutch 36 is transferred from the upper transfer table frame 5. When the preceding seedling raising container inside is pushed, the one-way clutch 36 is configured to idle.
The specific configuration of the one-way clutch 36 is arbitrary, and as an example, a rotating body 40 is provided on the roll rotating shaft 8, a protrusion 41 protruding in the radial direction is provided on the outer peripheral surface of the rotating body 40, and a lower gear 32 is provided. A wedge-shaped groove 42 is formed between the inner peripheral surface of the groove 42 and the outer surface of the protrusion 41, a ball 43 and a spring 44 are provided in the groove 42, and the spring 44 constantly moves the ball 43 to the narrow portion side of the groove 42. The configuration is such that it is urged.

そのため、図６において、下手側歯車３２が時計回転方向に回転すると、ボール４３はバネ４４に付勢されて下手側歯車３２の内周面と突起４１の外面との間の溝４２の幅狭部に食い込みワンウェイクラッチ３６は入り状態になって、ロール回転軸８に下手側歯車３２の回転を伝達し、下手側移送台フレーム５の移送手段２の移送ロール７を駆動して育苗容器を移送する。 Therefore, in FIG. 6, when the lower gear 32 rotates in the clockwise rotation direction, the ball 43 is urged by the spring 44 and the width of the groove 42 between the inner peripheral surface of the lower gear 32 and the outer surface of the protrusion 41 is narrowed. The one-way clutch 36 is engaged in the section, transmits the rotation of the lower gear 32 to the roll rotation shaft 8, and drives the transfer roll 7 of the transfer means 2 of the lower transfer table frame 5 to transfer the seedling raising container. do.

次に、チェン３３により伝達される下手側歯車３２の回転（上手側回転）に対して下手側移送台フレーム５のロール回転軸８の回転が相対的に遅くなって、下手側歯車３２と回転体４２の間に負荷（抵抗）が発生すると、回転体４０の突起４１は下手側歯車３２に対して反時計回りに回転し、ボール４３は溝４２の幅広部に移動し、ボール４３による下手側歯車３２の内周面と突起４１の外面との間の食い込みを解除し、これにより、ワンウェイクラッチ３６は遮断状態（クラッチ切り状態）になって、回転体４０とロール回転軸８は下手側歯車３２に対して空転する。 Next, the rotation of the roll rotation shaft 8 of the lower transfer table frame 5 becomes relatively slow with respect to the rotation of the lower gear 32 transmitted by the chain 33 (rotation on the upper side), and the rotation with the lower gear 32. When a load (resistance) is generated between the bodies 42, the protrusion 41 of the rotating body 40 rotates counterclockwise with respect to the lower gear 32, the ball 43 moves to the wide portion of the groove 42, and the ball 43 is inferior. The bite between the inner peripheral surface of the side gear 32 and the outer surface of the protrusion 41 is released, whereby the one-way clutch 36 is in the disengaged state (clutch disengaged state), and the rotating body 40 and the roll rotating shaft 8 are on the lower side. It spins with respect to the gear 32.

すなわち、上手側移送台フレーム５から乗り移る後行育苗容器が下手側の移送台フレーム５の移送中の先行育苗容器を押すと、ワンウェイクラッチ３６の回転伝達が遮断されて（空転状態）、下手側移送台フレーム５の移送手段２の移送ロール７は、上手側移送台フレーム５の移送ロール７に対して相対的に空転状態となり、先行育苗容器は後続育苗容器に押されて移送され、連続移送されている最後尾の育苗容器が下手側移送台フレーム５の移送手段２に乗り移ると、後続の育苗容器による押し出し力から解放されて、ワンウェイクラッチ３６は接続状態（クラッチ入り状態）となって下手側移送台フレーム５の移送手段２により移送される。 That is, when the trailing seedling raising container transferred from the upper transfer table frame 5 pushes the preceding seedling raising container during transfer of the lower transfer table frame 5, the rotation transmission of the one-way clutch 36 is cut off (idling state) and the lower side. The transfer roll 7 of the transfer means 2 of the transfer table frame 5 is in an idle state relative to the transfer roll 7 of the upper transfer table frame 5, and the preceding seedling raising container is pushed by the succeeding seedling raising container and transferred, and is continuously transferred. When the last seedling raising container is transferred to the transfer means 2 of the lower transfer table frame 5, the one-way clutch 36 is released from the pushing force of the subsequent seedling raising container, and the one-way clutch 36 is in a connected state (clutch engaged state). It is transferred by the transfer means 2 of the side transfer table frame 5.

移送台１の複数の移送台フレーム５を連結する部分には回転伝動部３０がそれぞれ設けられるが、各移送台フレーム５のうち、前記種子供給装置１７を設けた移送台フレーム５と、該種子供給装置１７を設けた移送台フレーム５の移送方向上手側の移送台フレーム５との間の回転伝動部３０に減速手段３５とワンウェイクラッチ３６を設けると、育苗容器の隙間のない連続移送と、移送手段２への負荷の軽減とを両立させつつ、高価な種子のロス発生を抑制でき、播種コストを低減できて、好適である。
また、前記種子供給装置１７を設けた移送台フレーム５の移送方向上手側の移送台フレーム５はどのようなものでもよく、上手側の移送台フレーム５には単独の床土供給装置１５のみを設ける場合と、床土供給装置１５および灌水装置２０の両方を設ける場合と、移送手段２のみを設ける場合の何れでもよい。 A rotary transmission unit 30 is provided at a portion of the transfer table 1 for connecting a plurality of transfer table frames 5. Among the transfer table frames 5, the transfer table frame 5 provided with the seed supply device 17 and the seeds are provided. When the deceleration means 35 and the one-way clutch 36 are provided in the rotation transmission unit 30 between the transfer table frame 5 on the upper side in the transfer direction of the transfer table frame 5 provided with the supply device 17, the seedling raising container can be continuously transferred without a gap. It is preferable because it is possible to suppress the occurrence of loss of expensive seeds and reduce the sowing cost while achieving both reduction of the load on the transfer means 2.
Further, the transfer table frame 5 on the upper side in the transfer direction of the transfer table frame 5 provided with the seed supply device 17 may be any, and the transfer table frame 5 on the upper side has only a single floor soil supply device 15. It may be provided, either the case where both the floor soil supply device 15 and the irrigation device 20 are provided, or the case where only the transfer means 2 is provided.

回転伝動部３０には、上手側伝達歯車３１と下手側歯車３２とに掛け回したチェン３３を緊張させるテンション歯車４７を設ける。テンション歯車４７はテンションアーム４８の一端に設け、テンションアーム４８の中間部を連結枠４９に軸５０により回動自在に取り付ける。テンションアーム４８の他端にはバネ５１の一端を係止し、バネ５１の他端を連結枠４９に設けたテンション調節穴５２に係止する。テンション調節穴５２は軸５０の中心より距離を変えて複数設け、バネ５１の他端を選択係止する。 The rotation transmission unit 30 is provided with a tension gear 47 that tensions the chain 33 that is hung around the upper transmission gear 31 and the lower gear 32. The tension gear 47 is provided at one end of the tension arm 48, and the intermediate portion of the tension arm 48 is rotatably attached to the connecting frame 49 by the shaft 50. One end of the spring 51 is locked to the other end of the tension arm 48, and the other end of the spring 51 is locked to the tension adjusting hole 52 provided in the connecting frame 49. A plurality of tension adjusting holes 52 are provided at different distances from the center of the shaft 50, and the other end of the spring 51 is selectively locked.

そのため、バネ５１のテンション調節穴５２への取付位置を変えることで、テンションアーム４８の下方向への付勢力を変化させ、テンションアーム４８に取り付けたテンション歯車４７によるチェン３３の張り具合を調節させることができる。
連結枠４９の上部は内側に屈曲させ、屈曲部５３をフレーム部材６の上面にボルト５４により着脱自在に取付ける。 Therefore, by changing the mounting position of the spring 51 to the tension adjusting hole 52, the downward urging force of the tension arm 48 is changed, and the tension of the chain 33 by the tension gear 47 mounted on the tension arm 48 is adjusted. be able to.
The upper part of the connecting frame 49 is bent inward, and the bent portion 53 is detachably attached to the upper surface of the frame member 6 by bolts 54.

（実施形態の作用）
本発明は、上記構成であり、播種装置の移送台１の始端部に、育苗容器を供給すると、育苗容器は移送ロール７により床土供給装置１５の下方に至り、床土供給装置１５にて床土の供給を受け、床土供給装置１５で床土の供給を受けた育苗容器は均平回転ブラシ１６により、育苗容器に余分に供給した床土を所定量掻取りながら均平される。 (Action of Embodiment)
The present invention has the above configuration, and when the seedling raising container is supplied to the starting end of the transfer table 1 of the seeding device, the seedling raising container reaches the lower part of the bed soil supply device 15 by the transfer roll 7, and the bed soil supply device 15 The seedling raising container that has been supplied with the floor soil and has been supplied with the floor soil by the floor soil supply device 15 is leveled while scraping a predetermined amount of the floor soil excessively supplied to the seedling raising container by the leveling rotary brush 16.

床土が均平された育苗容器は上手側灌水装置２０の下方にて灌水されて、灌水された水が床土に染み込んだ状態となるまで、上手側灌水装置２０から所定時間掛けて種子供給装置１７の下方まで移送され、種子供給装置１７にて種子の供給を受け、更に移送されて覆土供給装置２５の下方に至り、覆土の供給を受ける。 The seedling raising container on which the floor soil is leveled is irrigated below the good side irrigation device 20, and seeds are supplied from the good side irrigation device 20 for a predetermined time until the irrigated water soaks into the floor soil. The seeds are transferred to the lower part of the device 17, the seeds are supplied by the seed supply device 17, and the seeds are further transferred to the lower part of the soil cover supply device 25 to receive the soil cover.

しかして、土や種子の供給装置を設けた移送台１は、播種装置の時間当たりの播種可能な育苗容器数の相違による播種能力の能力差により、移送台１の長さが相違し、播種能力の低い播種装置では時間当たり播種できる育苗容器の数が少なく、その分、育苗容器の搬送速度が遅くなるが、反対に、播種能力が高く、時間当たりの播種可能な育苗容器数が多い播種装置では育苗容器の搬送速度は速くなり、速い移送速度で移送中の育苗容器に種子等を供給するには、各供給装置との間隔を広くする必要が生じ、播種能力の高い移送台１は播種能力の低い移送台１に比して全長が長くなる傾向となり、播種装置は、その播種能力に応じて、単独の移送台フレーム５上に土や種子の供給装置の全て設置しているものと、本発明のように、高い播種能力を有する播種装置では複数の移送台フレーム５を連結して使用する場合とがある。 Therefore, the transfer table 1 provided with the soil and seed supply device has a different length of the transfer table 1 due to the difference in the sowing ability due to the difference in the number of seedling raising containers that can be sown per hour of the sowing device, and sows. With a low-capacity sowing device, the number of seedling raising containers that can be sown per hour is small, and the transport speed of the seedling raising container is slowed down by that amount. In the device, the transfer speed of the seedling raising container becomes high, and in order to supply seeds, etc. to the seedling raising container being transferred at a high transfer speed, it is necessary to widen the distance from each supply device. The total length tends to be longer than that of the transfer table 1 having a low sowing capacity, and the sowing device has all the soil and seed supply devices installed on a single transfer table frame 5 according to the sowing capacity. And, as in the present invention, in a seeding device having a high seeding ability, a plurality of transfer table frames 5 may be connected and used.

本発明のように、播種能力の高い播種装置の移送台１は、予め分割形成して、独立して移送手段２を有する移送台フレーム５を、育苗容器の移送方向に複数連結して構成することになり、各移送台フレーム５の始端部と終端部との間には、上手側移送台フレーム５の移送手段２の回転を、移送方向下手側の移送台フレーム５の移送手段２に伝達する回転伝動部３０を設けることになり、回転伝動部３０は、上手側移送台フレーム５に設けた上手側伝達歯車３１と、下手側移送台フレーム５に設けた下手側歯車３２と、上手側伝達歯車３１と下手側歯車３２の間に掛け回すチェン３３とにより構成する。 As in the present invention, the transfer table 1 of the seeding device having high seeding ability is configured by dividing and forming in advance, and a plurality of transfer table frames 5 having independent transfer means 2 are connected in the transfer direction of the seedling raising container. Therefore, the rotation of the transfer means 2 of the upper transfer table frame 5 is transmitted to the transfer means 2 of the transfer table frame 5 on the lower side in the transfer direction between the start end portion and the end portion of each transfer table frame 5. The rotary transmission unit 30 is to be provided, and the rotary transmission unit 30 includes an upper transmission gear 31 provided on the upper transfer table frame 5, a lower gear 32 provided on the lower transfer table frame 5, and an upper side. It is composed of a chain 33 that is hung between the transmission gear 31 and the lower gear 32.

したがって、上手側移送台フレーム５の移送手段２のロール回転軸８の回転を、回転伝動部３０の上手側伝達歯車３１がチェン３３を介して移送方向下手側の移送台フレーム５の移送手段２の下手側歯車３２に伝達され、下手側歯車３２を設けたロール回転軸８により下手側移送台フレーム５の移送手段２を駆動して、育苗容器を移送して播種する。
すなわち、単独の移送台フレーム５の移送ロール７は、ロール回転軸８の各移送伝達歯車１０をチェン１１により連動させて駆動回転し、育苗容器を移送し、複数並設した移送台フレーム５の移送手段２は回転伝動部３０により上手側から下手側に駆動回転を伝達して作動させている。 Therefore, the rotation of the roll rotation shaft 8 of the transfer means 2 of the upper transfer table frame 5 is carried out by the upper transmission gear 31 of the rotation transmission unit 30 via the chain 33, and the transfer means 2 of the transfer table frame 5 on the lower side in the transfer direction. It is transmitted to the lower side gear 32, and the transfer means 2 of the lower side transfer table frame 5 is driven by the roll rotation shaft 8 provided with the lower side gear 32 to transfer the seedling raising container and sow.
That is, the transfer roll 7 of the single transfer table frame 5 is driven and rotated by interlocking each transfer transmission gear 10 of the roll rotation shaft 8 with the chain 11 to transfer the seedling raising container, and a plurality of transfer table frames 5 arranged side by side. The transfer means 2 is operated by transmitting the drive rotation from the upper side to the lower side by the rotation transmission unit 30.

この場合、複数設けた回転伝動部３０のうち、所定部分の回転伝動部３０あるいは全ての回転伝動部３０には、移送方向下手側の移送手段２の回転を、移送方向上手側の移送手段２の回転よりも減速する減速手段３５を設けた構成としているので、育苗容器を連続してしかも隙間のない移送が可能になり、無駄のない供給が可能となる。
しかし、上手側移送台フレーム５から移送された後行育苗容器が下手側移送台フレーム５に乗り移るとき、後行育苗容器が先行育苗容器を押すと、下手側移送台フレーム５の移送手段２に負荷を与えることになり、下手側移送台フレーム５の移送手段２のみ耐久性が低下するということになるが、本発明では複数設けた回転伝動部３０のうち、所定部分の回転伝動部３０あるいは全ての回転伝動部３０には、移送方向上手側と移送方向下手側の伝動経路中にワンウェイクラッチ３６を設けているので、減速手段３５と相俟って育苗容器の隙間のない連続移送と、移送手段２への負荷の軽減とを両立させることができる。 In this case, among the plurality of rotational transmission units 30 provided, the rotation of the transfer means 2 on the lower side in the transfer direction is transferred to the rotation transmission unit 30 or all the rotation transmission units 30 in the predetermined portion, and the transfer means 2 on the upper side in the transfer direction is applied. Since the deceleration means 35 that decelerates more than the rotation of the seedlings is provided, the seedling raising containers can be continuously transferred without any gaps, and the supply without waste is possible.
However, when the trailing seedling raising container transferred from the upper transfer table frame 5 transfers to the lower transfer table frame 5, when the trailing seedling raising container pushes the preceding seedling raising container, it becomes the transfer means 2 of the lower transfer table frame 5. A load will be applied, and the durability of only the transfer means 2 of the lower transfer table frame 5 will be reduced. All the rotary transmission units 30 are provided with a one-way clutch 36 in the transmission path on the upper side in the transfer direction and the lower side in the transfer direction. It is possible to reduce the load on the transport means 2 at the same time.

減速手段３５およびワンウェイクラッチ３６の構成は任意であるが、一例を示すと、前記回転伝動部３０の下手側歯車３２にワンウェイクラッチ３６を内蔵し、下手側歯車３２と上手側伝達歯車３１の歯数を相違させることで前記減速手段３５を構成し、上手側伝達歯車３１に対して下手側歯車３２の歯数を多くしているので、回転伝動部３０に簡単にワンウェイクラッチ３６を設けることができ、下手側歯車３２を交換するだけで、他の回転伝動部３０を共用できるので、この点でも、構成を簡素にしてコストダウンとすることができる。 The configuration of the deceleration means 35 and the one-way clutch 36 is arbitrary, but as an example, the one-way clutch 36 is built in the lower gear 32 of the rotation transmission unit 30, and the teeth of the lower gear 32 and the upper transmission gear 31 are provided. Since the deceleration means 35 is configured by different numbers and the number of teeth of the lower gear 32 is larger than that of the upper transmission gear 31, the one-way clutch 36 can be easily provided in the rotary transmission unit 30. The other rotary transmission unit 30 can be shared by simply replacing the lower gear 32, so that the configuration can be simplified and the cost can be reduced in this respect as well.

ワンウェイクラッチ３６付き下手側歯車３２は、上手側移送台フレーム５から乗り移る後行育苗容器が下手側の移送台フレーム５の移送中の先行育苗容器を押すと、ワンウェイクラッチ３６が空転する構成としているので、上手側移送台フレーム５から乗り移る後行育苗容器が下手側の移送台フレーム５の移送中の先行育苗容器を押すと、この押出力をワンウェイクラッチ３６が空転することにより吸収し、下手側移送台フレーム５の移送手段２の負荷を軽減する。 The lower gear 32 with the one-way clutch 36 has a configuration in which the one-way clutch 36 idles when the trailing seedling raising container transferred from the upper transfer table frame 5 pushes the preceding seedling raising container during transfer of the lower transfer table frame 5. Therefore, when the trailing seedling raising container transferred from the upper transfer table frame 5 pushes the preceding seedling raising container during transfer of the lower transfer table frame 5, this push output is absorbed by the one-way clutch 36 idling and absorbed by the lower side. The load on the transfer means 2 of the transfer table frame 5 is reduced.

しかして、ワンウェイクラッチ３６はロール回転軸８に回転体４０を設け、回転体４０の外周面には突起４１を設け、下手側歯車３２の内周面と突起４１の外面との間に楔状の溝４２を形成し、溝４２内にボール４３とバネ４４を設け、バネ４４は溝４２の幅狭部側に移動するように付勢しているので、下手側歯車３２が図６において時計回転方向に回転すると、ボール４３はバネ４４に付勢されて下手側歯車３２の内周面と突起４１の外面との間に食い込みワンウェイクラッチ３６は入り状態になって、ロール回転軸８に下手側歯車３２の回転を伝達し、ロール回転軸８の回転が下手側歯車３２に対して相対的に遅くなると、回転体４０の突起４１は相対的に下手側歯車３２に対して反時計回りに回転し、ボール４３は溝４２の幅広部に移動し、ボール４３による下手側歯車３２の内周面と突起４１の外面との間の食い込みを解除してワンウェイクラッチ３６は遮断状態になって、ロール回転軸８は空転する。 The one-way clutch 36 is provided with a rotating body 40 on the roll rotating shaft 8, a protrusion 41 is provided on the outer peripheral surface of the rotating body 40, and a wedge shape is formed between the inner peripheral surface of the lower gear 32 and the outer surface of the protrusion 41. Since the groove 42 is formed, the ball 43 and the spring 44 are provided in the groove 42, and the spring 44 is urged to move to the narrow portion side of the groove 42, the lower gear 32 rotates clockwise in FIG. When rotated in the direction, the ball 43 is urged by the spring 44 and bites between the inner peripheral surface of the lower gear 32 and the outer surface of the protrusion 41, and the one-way clutch 36 is engaged, and the lower side is on the roll rotation shaft 8. When the rotation of the gear 32 is transmitted and the rotation of the roll rotation shaft 8 becomes relatively slow with respect to the lower gear 32, the protrusion 41 of the rotating body 40 rotates counterclockwise with respect to the lower gear 32. Then, the ball 43 moves to the wide portion of the groove 42, the bite between the inner peripheral surface of the lower gear 32 and the outer surface of the protrusion 41 by the ball 43 is released, and the one-way clutch 36 is shut off and rolled. The rotation shaft 8 idles.

すなわち、上手側移送台フレーム５から乗り移る後行育苗容器が下手側の移送台フレーム５の移送中の先行育苗容器を押すと、ワンウェイクラッチ３６が遮断されて空転状態となるので、下手側移送台フレーム５の移送手段２の移送ロール７は上手側移送台フレーム５の移送ロール７に対して相対的に空転状態となり、先行育苗容器は後続育苗容器に押されて移送され、連続移送されている最後尾の育苗容器が下手側移送台フレーム５の移送手段２に乗り移ると、後続の育苗容器による押出から解放されて、ワンウェイクラッチ３６は接続状態となって下手側移送台フレーム５の移送手段２により移送される。 That is, when the trailing seedling raising container transferred from the upper transfer table frame 5 pushes the preceding seedling raising container during transfer of the lower transfer table frame 5, the one-way clutch 36 is cut off and the seedling raising container is in an idling state. The transfer roll 7 of the transfer means 2 of the frame 5 is in an idle state relative to the transfer roll 7 of the upper transfer table frame 5, and the preceding seedling raising container is pushed and transferred by the subsequent seedling raising container and continuously transferred. When the rearmost seedling raising container is transferred to the transfer means 2 of the lower transfer table frame 5, the one-way clutch 36 is released from the subsequent extrusion by the seedling raising container, and the one-way clutch 36 is connected to the transfer means 2 of the lower transfer table frame 5. Will be transferred by.

しかして、複数の移送台フレーム５を連結して構成した移送台１には、複数の回転伝動部３０が設けられるが、各移送台フレーム５のうち、種子供給装置１７を設けた移送台フレーム５と、該種子供給装置１７を設けた移送台フレーム５の移送方向上手側の移送台フレーム５との間の回転伝動部３０には減速手段３５とワンウェイクラッチ３６を設けているので、高価な種子のロス発生を抑制でき、播種コストを低減できて、好適である。 The transfer table 1 configured by connecting the plurality of transfer table frames 5 is provided with a plurality of rotational transmission units 30, and among the transfer table frames 5, the transfer table frame provided with the seed supply device 17 is provided. The rotation transmission unit 30 between the transfer table frame 5 on the upper side in the transfer direction of the transfer table frame 5 provided with the seed supply device 17 is provided with the deceleration means 35 and the one-way clutch 36, which is expensive. It is suitable because it can suppress the occurrence of seed loss and reduce the sowing cost.

また、種子供給装置１７を設けた移送台フレーム５の移送方向上手側の移送台フレーム５には、前記床土供給装置１５または前記床土供給装置１５および上手側灌水装置２０、あるいは、移送手段２のみを設けているので、種々の播種装置において、隙間のない育苗容器の連続移送と、移送手段２への負荷の軽減とを両立させることができる。 Further, the transfer table frame 5 on the upper side in the transfer direction of the transfer table frame 5 provided with the seed supply device 17 has the floor soil supply device 15, the floor soil supply device 15, the upper side irrigation device 20, or the transfer means. Since only 2 is provided, it is possible to achieve both continuous transfer of the seedling raising container without gaps and reduction of the load on the transfer means 2 in various seeding devices.

１…移送台、２…移送手段、５…移送台フレーム、６…フレーム部材、７…移送ロール、８…ロール回転軸、１０…移送伝達歯車、１１…チェン、１２…コンベア駆動モータ、１５…床土供給装置、１６…床土均平回転ブラシ、１７…種子供給装置、１８…種子供給ホッパー、１９…横軸繰出ロール、２０…上手側灌水装置、２１…下手側灌水装置、２２…灌水横筒部、２５…覆土供給装置、３０…回転伝動部、３１…上手側伝達歯車、３２…下手側歯車、３３…チェン、３５…減速手段、３６…ワンウェイクラッチ、４０…回転体、４１…突起、４２…溝、４３…ボール、４４…バネ、４７…テンション歯車、４９…連結枠、５０…軸、５１…バネ、５２…テンション調節穴、５３…屈曲部、５４…ボルト。 1 ... Transfer table, 2 ... Transfer means, 5 ... Transfer table frame, 6 ... Frame member, 7 ... Transfer roll, 8 ... Roll rotary shaft, 10 ... Transfer transmission gear, 11 ... Chain, 12 ... Conveyor drive motor, 15 ... Floor soil supply device, 16 ... Floor soil leveling rotary brush, 17 ... Seed supply device, 18 ... Seed supply hopper, 19 ... Horizontal axis feeding roll, 20 ... Upper side irrigation device, 21 ... Lower side irrigation device, 22 ... Irrigation Horizontal cylinder part, 25 ... Soil covering supply device, 30 ... Rotation transmission part, 31 ... Upper side transmission gear, 32 ... Lower side gear, 33 ... Chain, 35 ... Deceleration means, 36 ... One-way clutch, 40 ... Rotating body, 41 ... Projections, 42 ... grooves, 43 ... balls, 44 ... springs, 47 ... tension gears, 49 ... connecting frames, 50 ... shafts, 51 ... springs, 52 ... tension adjustment holes, 53 ... bent parts, 54 ... bolts.

Claims (6)

育苗容器を移送する移送手段２を有する移送台１の上方位置に、育苗容器に床土を供給する床土供給装置１５と、育苗容器に種子を供給する種子供給装置１７と、育苗容器に水を供給する灌水装置と、育苗容器に覆土を供給する覆土供給装置２５とを設けて構成した播種装置において、前記移送台１は、支脚３により床上に載置され前記移送手段２を有する移送台フレーム５が育苗容器の移送方向に分割形成し、移送台１の各上手側移送台フレーム５と各下手側移送台フレーム５との間には上手側移送台フレーム５から下手側移送台フレーム５へ回転を伝達する回転伝動部３０をそれぞれ設け、各回転伝動部３０のうち所定の回転伝動部３０には上手側移送台フレーム５から下手側移送台フレーム５へ伝達する回転を減速する減速手段３５を設けた播種装置。Above the transfer table 1 having the transfer means 2 for transferring the seedling raising container, the bed soil supply device 15 for supplying the bed soil to the seedling raising container, the seed supply device 17 for supplying the seeds to the seedling raising container, and water in the seedling raising container. In a sowing device configured by providing a irrigation device for supplying seedlings and a soil covering device 25 for supplying soil covering to a nursery container, the transfer table 1 is placed on the floor by a support leg 3 and has the transfer means 2. The frame 5 is divided and formed in the transfer direction of the seedling raising container, and between the upper transfer table frame 5 and the lower transfer table frame 5 of the transfer table 1, the upper transfer table frame 5 to the lower transfer table frame 5 Rotation transmission units 30 are provided, respectively, and the rotation transmission unit 30 of each rotation transmission unit 30 is a deceleration means for decelerating the rotation transmitted from the upper transfer table frame 5 to the lower transfer table frame 5. A seeding device provided with 35. 請求項１記載の播種装置において、各回転伝動部３０のうち減速手段３５を設けた回転伝動部３０にはワンウェイクラッチ３６を設けた播種装置。 In the seeding device according to claim 1, the seeding device in which the one-way clutch 36 is provided in the rotary transmission unit 30 provided with the deceleration means 35 among the rotary transmission units 30. 請求項２記載の播種装置において、上手側移送台フレーム５の移送中の後続育苗容器が下手側の移送台フレーム５の移送中の先行育苗容器を押すと、前記ワンウェイクラッチ３６が空転する構成とした播種装置。 In the seeding apparatus according to claim 2, when the succeeding seedling raising container during transfer of the upper transfer table frame 5 pushes the preceding seedling raising container during transfer of the lower transfer table frame 5, the one-way clutch 36 idles. Seeding device. 請求項１～請求項３記載の播種装置において、各移送台フレーム５のうち、前記種子供給装置１７を設けた移送台フレーム５と、該種子供給装置１７を設けた移送台フレーム５の移送方向上手側の移送台フレーム５との間に設けた回転伝動部３０には、減速手段３５およびワンウェイクラッチ３６を設けた播種装置。 In the seeding apparatus according to claim 1 to 3, among the transfer table frames 5, the transfer direction of the transfer table frame 5 provided with the seed supply device 17 and the transfer table frame 5 provided with the seed supply device 17. A seeding device provided with a deceleration means 35 and a one-way clutch 36 in the rotation transmission unit 30 provided between the transfer table frame 5 on the upper side. 請求項２～請求項４記載の播種装置において、前記種子供給装置１７を設けた移送台フレーム５の移送方向上手側の移送台フレーム５には、前記床土供給装置１５、または、前記床土供給装置１５および灌水装置、あるいは、移送手段２のみの何れかを設けた播種装置。 In the seeding apparatus according to claim 2 to 4, the floor soil supply device 15 or the floor soil is attached to the transfer table frame 5 on the upper side in the transfer direction of the transfer table frame 5 provided with the seed supply device 17. A seeding device provided with either a supply device 15 and a irrigation device, or only a transfer means 2. 請求項１～請求項５記載の播種装置において、前記回転伝動部３０は、上手側移送台フレーム５に設けた上手側伝達歯車３１と、下手側移送台フレーム５に設けた下手側歯車３２と、前記上手側伝達歯車３１と前記下手側歯車３２に掛け回したチェン３３とを有し、回転伝動部３０の上手側伝達歯車３１と下手側歯車３２との歯数を相違させて前記減速手段３５を構成し、前記下手側歯車３２にワンウェイクラッチ３６を内蔵させて構成した播種装置。 In the seeding apparatus according to claim 1 to 5, the rotary transmission unit 30 includes an upper transmission gear 31 provided on the upper transfer platform frame 5 and a lower gear 32 provided on the lower transfer platform frame 5. The deceleration means has a chain 33 hung around the upper hand transmission gear 31 and the lower hand side gear 32, and the number of teeth of the upper hand side transmission gear 31 and the lower hand side gear 32 of the rotary transmission unit 30 is different. A seeding device comprising 35 and incorporating a one-way clutch 36 in the lower gear 32.
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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000262112A (en) 1999-03-19 2000-09-26 Iseki & Co Ltd Seeding machine
JP2002291306A (en) 2001-04-03 2002-10-08 Yanmar Agricult Equip Co Ltd Seeding apparatus
JP2013141427A (en) 2012-01-10 2013-07-22 Daiwa Seiko Inc Seeder

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JPS59110523U (en) * 1983-01-18 1984-07-25 大和精工株式会社 Unit connection device for seedling seeding equipment
JP3097325B2 (en) * 1992-07-01 2000-10-10 井関農機株式会社 Seedling seeder
JP3723256B2 (en) * 1995-09-08 2005-12-07 株式会社スズテック Transfer devices such as seeding equipment

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000262112A (en) 1999-03-19 2000-09-26 Iseki & Co Ltd Seeding machine
JP2002291306A (en) 2001-04-03 2002-10-08 Yanmar Agricult Equip Co Ltd Seeding apparatus
JP2013141427A (en) 2012-01-10 2013-07-22 Daiwa Seiko Inc Seeder

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