PROBLEM TO BE SOLVED: To constitute a paddy field work machine which favorably receives a radio signal from a positioning satellite and highly accurately detects a travel vehicle body direction from earth magnetism by a direction sensor.SOLUTION: The paddy field work machine includes a positioning system in which a radio signal from a positioning satellite is received by a receiving unit 45 and a position information of a travel vehicle body A is obtained. The receiving unit 45 includes an antenna receiving a radio wave from the positioning satellite and a direction sensor detecting a direction from earth magnetism. The receiving unit 45 is supported via a support member 44 formed of a non-magnetic material with respect to an upper end part of a receiving unit support part arranged on the travel vehicle body A.COPYRIGHT: (C)2016,JPO&INPIT【課題】測位衛星からの電波信号を良好に受信し、地磁気から走行車体の方向を方位センサによって高精度で検知する水田作業機を構成する。【解決手段】測位衛星からの電波信号を受信ユニット45で受信し、走行車体Aの位置情報を取得する測位システムを備えると共に、受信ユニット45が、測位衛星からの電波を受信するアンテナと、地磁気から方位を検知する方位センサとを備えて構成され、受信ユニット45を、走行車体Aに備えた受信ユニット支持部の上端部に対して非磁性材料で形成される支持部材44を介して支持した。【選択図】図1
