PROBLEM TO BE SOLVED: To provide a seedling transplanter that accurately supplies a proper amount of seedlings (number of seedlings) to a seedling output port and plants seedlings in a proper amount of seedlings on a field regardless of operation conditions etc.SOLUTION: In the seedling transplanter including a seedling receiving frame 81 for receiving the end parts of seedlings, the seedling output port 78 attached to the seedling receiving frame 81, a seedling stand 80 which is horizontally moved along the seedling receiving frame 81 on the upper side of the seedling receiving frame 81 and supplies seedlings to the seedling output port 78, a seedling transport device 79 which transports seedlings on the seedling stand 80 to the seedling receiving frame 81 side at the horizontal transport end of the seedling stand 80, a seedling transport amount change device 135 for changing the transport amount of seedling by the seedling transport device 79 and a seedling planting device for planting seedlings supplied to the seedling output port 78, the seedling transplanter is equipped with a seedling amount sensor 140 for determining the amount of seedlings on the seedling stand 80 and a seedling transport amount controller for controlling the seedling transport amount change device 135 so as to lessen the seedling transport amount of the seedling transport device 79 when the amount of seedlings on the seedling stand 80 is large based on the detection of the seedling amount sensor 140.COPYRIGHT: (C)2009,JPO&INPIT【課題】 本発明は、作業条件等に拘らず、苗取出口へ適正な苗量(苗本数)を精度良く供給し、適正な苗量で圃場に苗を植え付けることができるようにすることを課題とする。【解決手段】 苗の端部を受ける苗受枠81と、該苗受枠81に備える苗取出口78と、苗受枠81の上側で該苗受枠81に沿って左右移動して苗を前記苗取出口78に供給する苗載台80と、苗載台80の左右移動端で該苗載台80上の苗を苗受枠81側へ移送する苗移送装置79と、該苗移送装置79による苗の移送量を変更する苗移送量変更装置135と、苗取出口78に供給された苗を植付ける苗植付装置とを設けた苗移植機において、苗載台80上の苗の量を判別する苗量センサ140を設け、該苗量センサ140の検出に基づいて苗載台80上の苗の量が多いとき苗移送装置79の苗の移送量が小さくなるように苗移送量変更装置135を制御する苗移送量制御装置を設けた。【選択図】 図4
