| 摘要 |
<p>1,159,178. Packaging. AMERICAN PACKAGING CORP. 30 Oct., 1967 [2 Nov., 1966; 9 Feb., 1967], No. 49206/67. Heading B8C. A panel-type container i.e. one in which an article is mounted on or within a display card or other panel and covered with a thermoplastics material secured to the card and forming a pocket for the article, has a pocket of thermoplastics sheet formed into a first generally planar part attached to the panel and a second part at least partially surrounded by the first part and having one or more deformable pleats of lesser thickness than the first part formed within it, the pleat or pleats extending at least partially around a generally planar area of substantially the same thickness as the first part and allowing this area to move out of the plane of the first part to form the pocket. In one embodiment card 21 (Fig. 3), has two panels 22, 24 joined by a fold line 26 each panel having mirror image apertures 34a, 34b and 30a, 30b. A sheet 32 of pliable thermoplastic film is bonded to the surface of the card 21 and across the apertures. The combined card and sheet is then placed on a mould 40 (Fig. 4), having a series of recesses in the areas 50, 51 and 52 corresponding with the apertures in the card 21. The sheet is then heated to softening temperature and either suction is applied at the bottoms of the recesses, or air pressure is applied above the recesses or a male mould is used to force the film into the recesses to form pleats or corrugations in the film. The combined card and sheet is then removed from the mould and the article to be packaged (a padlock 70 and its keys) is placed in the recess (or recesses) and the card folded at 26 (Fig. 8). The two panels of the card are brought together (Fig. 10) and sealed, and the pocket forming portions heat shrunk. In a second embodiment (Figs. 14 to 19, not shown), a bubble-type package for small electric batteries is formed with front and back panels with a separately formed pocket portion protruding through an aperture in one of said panels. In further embodiments (Figs. 20 to 22, not shown), C-shaped pleats, overlapping crescentshaped pleats and overlapping L-shaped or corner pleats are used.</p> |
