PROBLEM TO BE SOLVED: To provide an automatic feeder which is used for pet dogs and cats in the absence of their owner, with which the problem that innocent upset frequently happens due to, for example, occupation of an opening/closing portion connected to a timer and based on their behavior of following about the feeder in setting, is settled.SOLUTION: The exclusive use opening/closing device is eliminated using turning means obtained by forming a feed box to have an L-shape and pivoting the feed box on one side of a body so as to be vertically closed to be served as a closing lid in setting, and reversely turned to be opened.COPYRIGHT: (C)2012,JPO&INPIT【課題】 飼い犬・猫に用いる留守時の自動給餌器に於いて、セット時の同器にまつわる彼らの習性により、タイマーに連結する開閉部を占拠するなどでたわいない番狂わせが頻発していた。【解決手段】 餌箱をL字状に設けて本体の一側に軸支し、セット時は縦伏せして閉じ蓋に、之を反転してオープンとする回動手段により、専用の開閉装置を省略する。【選択図】図2