Patent ID: 8196376
Filing Date: 2012-06-12
Classification: B65B

Abstract:
1. A heat shrinking apparatus for a shrink film, that heat shrinks a shrink film covering a part or a whole of an article, the heat shrinking apparatus comprising: a heat treatment chamber that surrounds a transfer passage for the article; and heating means that heats the interior of the heat treatment chamber; wherein the heating means is adapted to supply superheated steam to the heat treatment chamber; the heating means includes a pair of side supply heads disposed opposing each other with a transfer conveyor, on which the article is placed, being interposed therebetween each of the pair of side supply heads forms a cylindrical shape, wherein a plurality of steam supply holes are formed on a circumferential surface of the cylindrical shape to be opposed to each other, and the superheated steam is supplied through the steam supply holes; and the pair of side supply heads are respectively tilted such that approaching an exit side from an entrance side of the heat treatment chamber each successive side supply head is located at a gradually higher position.