PROBLEM TO BE SOLVED: To solve the problems wherein a puddling rotor transmitter easily receives dispersed mud, water or the like to make the maintenance of a smooth transmission driving state difficult in a form of synchronously driving the puddling rotor installed in the front side of a float of a transplanting device so as to be expanded and contracted by an output shaft at the rear wheel transmission case side of a traveling vehicle body through an expanding and contracting interlocking shaft.SOLUTION: The puddling rotor transmitter for a seedling transplanter is equipped with a spline interlocking shaft 12 comprising a freely expandable spline shaft 10 for synchronously driving an input shaft 9 of the rotor transmission case 8 of the puddling rotter 4, by the output shaft 7 of the rear wheel transmission case axially installing a rear axle of a traveling vehicle body, and a spline cylinder shaft 11 in which the spline shaft 10 is fitted and inserted, and an interlocking shaft boot 15 for covering the outer periphery of an air breather hole 13 of the spline cylinder shaft 11 by forming a boot chamber 14 on the outer periphery of the air breather hole 13 at a proper interval.COPYRIGHT: (C)2010,JPO&INPIT【課題】 苗植装置のフロートの前側に設ける代掻ロータを、走行車体の後輪伝動ケース側の出力軸から伸縮連動軸を介して伸縮連駆動する形態にあっては、泥土、水等の飛散を受け易く、円滑な伝動駆動状態を維持し難い。【解決手段】 走行車体の後車軸を軸装する後輪伝動ケースの出力軸7から、この代掻ロータ4のロータ伝動ケース8の入力軸9に連動するための、伸縮自在のスプライン軸10と、このスプライン軸10を嵌挿するスプライン筒軸11とからなるスプライン連動軸12を設け、このスプライン筒軸11のエアブリーザ孔13の外周面に適宜間隔ブーツ室14を形成して覆う連動軸ブーツ15を設ける。【選択図】 図1
