PROBLEM TO BE SOLVED: To constitute a granule feeder suppressing dust deposition onto its granule sensor in unloading granules from a reservoir.SOLUTION: A granule feeder has the following construction: a granule sensor S determining the presence/absence of seed rice fed from a seed hopper 32 is constituted of a light-casting/receiving unit Sa having a light source and a light receiving part and a mirror Sb reflecting rays of light, and the light-casting/receiving unit Sa and the mirror Sb are laid at a position sandwiching a feed path G and an unloading path H via which seed rice is unloaded without going through an unloading roll 33 is laid opposite to the feed path G with the mirror Sb sandwiched.COPYRIGHT: (C)2014,JPO&INPIT【課題】貯留部から粒体を排出する際に粒体検出センサへの塵埃の付着を抑制する粒体供給装置を構成する。【解決手段】種子ホッパー32から供給される種籾の存否を判別する粒体検出センサSを、光源と受光部とを有した投受光ユニットSaと、光線を反射するミラーSbとで構成し、投受光ユニットSaとミラーSbとを供給経路Gを挟む位置に配置した。繰出ロール33を介さずに種籾を排出する排出経路Hを、ミラーSbを挟んで供給経路Gと反対側に配置した。【選択図】図6
