| 摘要 |
<p>A coplanar panel (6) for stiffening a blister sheet (20) provides a rectilinear array of rectangular windows (21) for the reception of respective blisters, rows of horizontal and parallel continuous strips (8) separating the longer sides of the blisters, and transverse lines of interrupted strips (9) which serve to separate the shorter sides of respective blisters. The interruptions provide gaps (10) for accommodating a pair of parallel ducts (22) formed on the blister sheet and which permit air to pass between neighboring blisters when one of them is manually depressed. The panel is held in place on the blister sheet by an adhesive layer which secures the coplanar lands of the blister sheet to the contiguous surfaces of the panel. A peel-off cover slip normally covers the adhesive layer and cuts (10) extending through the thickness of the panel but not the cover slip, serve to frame the portions of the panel which are not required when the panel is to be used. These portions remain adhering to the cover slip when it is peeled off the panel.</p> |
