Abstract: To allow a tubular film having a large opening diameter to be heat-sealed with a short length heater by a function (film width reduction function) that can reduce a size of an opening portion of the tubular film uniformly with a simple structure even when the width reduction operation is performed repeatedly. There is provided a film sealing mechanism provided with an elongated heater and a heater receiver configured to abut against the heater, the heater and heater receiver being disposed opposite, in a direction perpendicular to a position of the feed means, to a tubular film in which content is accommodated and which is fed downward from a film passage port by a feed means such as a feed roller with its both left and right end portions in a width direction supported, so as to be capable of holding outer surfaces of the film therebetween.

Abstract: To allow a tubular film having a large opening diameter to be heat-sealed with a short length heater by a function (film width reduction function) that can reduce a size of an opening portion of the tubular film uniformly with a simple structure even when the width reduction operation is performed repeatedly. There is provided a film sealing mechanism provided with an elongated heater and a heater receiver configured to abut against the heater, the heater and heater receiver being disposed opposite, in a direction perpendicular to a position of the feed means, to a tubular film in which content is accommodated and which is fed downward from a film passage port by a feed means such as a feed roller with its both left and right end portions in a width direction supported, so as to be capable of holding outer surfaces of the film therebetween.

Abstract: A folding film cassette including: a cassette base consisting of a first annular body with a substantially L-shaped cross-section that has a hole corresponding to a hole of a toilet in a center thereof and includes a first annular vertical wall onto which a folding film is to be fitted over the outside thereof and a horizontal wall extending outwards from a bottom end of the first annular vertical wall; and a film guide consisting of a second annular body that is detachably mounted onto a top end of the first annular vertical wall onto which the film has been fitted and includes an outer flange, in which the folding film that is retained in the cassette base is expanded from an outer edge of the outer flange of the film guide and fed into the hole of the cassette base.