PROBLEM TO BE SOLVED: To provide an operation method of a strainer machine and an automatic strainer device in which the clogging of a though-hole for filtration can be eliminated and a strainer operation can optimally be maintained, even while optimally maintaining a foodstuff pushing pressure and duration, in the strainer machine using a centrifugal force by the rotation of a bottomed cylindrical container having the though-hole for filtration provided in the peripheral side surface.SOLUTION: An operation method is provided for a strainer machine rotatably supported around a central axis, and including a peripheral side plate having a vertical bottomed cylindrical container with a though-hole for filtration bored, a rotary presser rotatably supported around the central axis while abutting or approaching with/to an inner circumferential surface of the peripheral side plate inside the bottomed cylindrical container, and a filtration material collection member for collecting a filtration material discharged from the though-hole for filtration of the bottomed cylindrical container to the outside of the container. The operation method comprises a step of rotating the rotary presser in the rotation direction identical to the bottomed cylindrical container at a second rotational speed having a predetermined speed difference between a first rotational speed and itself, while rotating the bottomed cylindrical container with a strainer object casted therein in a predetermined rotation direction at the first rotational speed.COPYRIGHT: (C)2016,JPO&INPIT【課題】周側面に濾過用透孔を有する有底円筒状容器の回転による遠心力を利用する裏漉し機において、食材押し付け圧力及び継続時間を最適に維持しつつも濾過用透孔の目詰まりを解消し、裏漉し作用を最適に維持可能な裏漉し機の運転方法及び自動裏漉し装置を提供する。【解決手段】中心軸の回りに回転自在に支持され周側板には濾過用透孔が明けられた縦型有底円筒状容器と、有底円筒状容器の内側にあって周側板内周面と当接又は近接しつつ中心軸の周りに回転可能に支持された回転押圧子と、有底円筒状容器の濾過用透孔から容器外へと放出される濾過物を捕集する濾過物捕集部材とを有し、裏漉し対象物が投入された有底円筒状容器を所定の回転方向へと第1の回転速度で回転させながら、回転押圧子を有底円筒状容器と同一回転方向へと第1の回転速度の間に所定の速度差を有する第2の回転速度で回転させるステップを包含する。【選択図】図8
