| 摘要 |
The invention relates to a crown-type metal top for easy opening a bottle by twisting or using a pry lever. Before application, said metal top has a bell-shaped closing skirt comprising a plurality of alternating projections and depressions, the width of the projections being smaller than the width of the depressions, and each depression has a convex fold on its outer edge such that, when the closing skirt folds over the mouth of the recipient, each projection branches off into a pair of smaller projections that acquire a curved shape and are separated by a central depression that acquires a similar shape to that of the inside of a spheroid, forming a surface of the skirt that is comfortable to touch in order to facilitate manual opening by rotation, while the convex fold of each depression prevents the collapse of the outer edge of the depression in order to form a bell-shaped opening edge so as to facilitate the opening of the metal top by means of a bottle opener. |
