PROBLEM TO BE SOLVED: To provide a lid opening and closing mechanism of a hopper of a medicine dispensing packaging machine capable of being compactly constituted.SOLUTION: The lid opening and closing mechanism of the hopper of the medicine dispensing packaging machine is equipped with the hopper 4 receiving a medicine from a medicine feeding part, a freely openable and closeable lid 30 provided on an opening part so that the medicine received by the hopper 4 is fed into a packaging paper from the opening part of the lower end of the hopper 4, and an opening/closing device 32 for operating opening and closing the lid 30. The lid 30 is fitted on the side face of the hopper 4 so as to be freely oscillated around a horizontal axis X for the lid 30, and the opening/closing device 32 is provided for opening and closing the lid 30 from the side face side of the hopper 4.COPYRIGHT: (C)2009,JPO&INPIT【課題】小型化を図ることができる薬剤分包機のホッパーの蓋開閉機構を提供する。【解決手段】薬剤供給部からの薬剤を受け取るホッパー4と、該ホッパー4にて受止めた薬剤を該ホッパー4の下端の開口部から分包紙に投入するべく、該開口部に備えている開閉自在な蓋30と、該蓋30を開閉操作するための開閉装置32とを備えた薬剤分包機のホッパーの蓋開閉機構であって、前記蓋30が、前記ホッパー4の側面に水平軸芯X回りで揺動自在に取り付けられ、前記蓋30を前記ホッパー4の側面側から開閉操作するように前記開閉装置32を備えた。【選択図】図11