| 摘要 |
<p>PURPOSE:To provide a large quantity of receivers with a flanged bottom, which are uniformly excellent in quality, at a low cost by producing the same by a method of air-pressure forming or vacuum forming of a plastic sheet, and enable packed goods having flanged bottoms of different profiles to be temporarily fastened together with high compatibility by contriving the profile of staged edges on the surface of the receivers. CONSTITUTION:Substantially rectangular terrace surface 3 is provided flatly and adjacently to a central recess 2 of a receiver 1 formed into a substantially sheet-like shape of a flexible plastic sheet. Stages edges 4a, 4a curvedly recessed are formed at central parts of staged edges 4, 4 opposed to each other on the longer sides of the receiver among two pairs of stages edges 4, 5 opposed to one another and provided upright around the sloped faces 3. Further, side sheets 7, 7 are adjacently provided in a suspended state around external sloped faces 6, 6 connected to the periphery of the respective staged edges.</p> |
