PROBLEM TO BE SOLVED: To suppress overrun of a conveyance belt.SOLUTION: The seedling transplanter conveys seedlings held by a seedling holder up to a predetermined position by making an endless belt-like conveyance belt provided with a plurality of seedling holders intermittently perform conveying operation and transplants the seedlings to a field by transplanting craws. An intermittent conveying operation mechanism is interlockingly connected to a drive shaft for driving the conveyance belt through an one-way clutch part and the conveyance belt intermittently performs the conveyance operation by the intermittent conveying operation mechanism. A regulation mechanism part for regulating an excessive turn of the drive shaft is interlockingly connected to the intermittent conveying operation mechanism.COPYRIGHT: (C)2013,JPO&INPIT【課題】搬送ベルトのオーバーランを抑制すること。【解決手段】多数の苗ホルダーを設けた無端帯状の搬送ベルトを間欠的に搬送作動させて、苗ホルダーに保持させた苗を所定の位置まで搬送するとともに、移植爪により苗を圃場に移植する。前記搬送ベルトを駆動する駆動軸に、ワンウェイクラッチ部を介して間欠搬送作動機構を連動連結して、間欠搬送作動機構により搬送ベルトを間欠的に搬送作動可能となすとともに、間欠搬送作動機構には駆動軸の過剰な回動を規制する規制機構部を連動連結した。【選択図】図7
