PROBLEM TO BE SOLVED: To provide weeding brush rollers in need of no float, damaging no rice feet, and with no need of making themselves travel/travelling along rice rows, and to provide a method for paddy field weeding using the same.SOLUTION: The method for paddy field weeding is provided, comprising the following way: during an autonomous travel robot As going straight, there is provided with a roller-rotating speed difference between a front weeding brush roller 1 and rear weeding brush roller 1 in the traveling direction i.e., one of (front or rear) the weeding brush rollers 1 is rotated faster, while the other slower relative to the traveling speed of the robot A hence, a slip is caused between the tip of each of flexibly structured support rods 4 and the paddy field surface, thus enabling the paddy field surface to be stirred more powerfully. In this method, the weeding brush rollers 1 are each formed by such a manner that a rotary drum 3 axially supported on a drive shaft 2 is installed and a number of the flexibly structured support rods 4 are radially projected on the circumferential outer surface of the rotary drum 3.COPYRIGHT: (C)2012,JPO&INPIT【課題】本発明は、フロートを必要とせず、稲株を傷めず、かつ稲列に沿って走行させる/走行する必要がない除草用ブラシローラ及び水田除草方法を提供する。【解決手段】自律走行ロボットAの直進走行中は、走行方向の前後の除草用ブラシローラ1のローラ回転速度に差を設け、走行予定速度に対して一方(前部又は後部)の除草用ブラシローラ1を早く、かつ他方(後部又は前部)の除草用ブラシローラ1を遅く回転させることによって、柔軟構造の支持棒4の先端と田圃面にスリップを生じさせ、田圃面の撹拌をより強力に行うことができる。前記除草用ブラシローラ1は、駆動軸2に軸支された回転ドラム3を設け、該回転ドラム3の円周外面に放射状に多数の柔軟構造の支持棒4を突設させることによって形成される。【選択図】図4
