Abstract: A crown metal cap comfortable for opening by turning or with a bottle opener. The crown metal cap before folding, has a bell-shaped closure flange with a plurality of intercalated protrusions and depressions, the protrusions have a smaller width than the width of the depressions, and each depression has on its outer edge a convex fold; such that when closing the closure flange is folded over the mouth of the bottle, each protrusion bifurcates into a pair of minor protrusions that acquire a curved shape separated by a central depression that takes a similar form within a spheroid, forming a flange surface comfortable to touch to facilitate manual opening by turning; whereas the convex fold of each depression prevents the collapse of the outer edge of the depression to form a bell-shaped opening edge for easy opening of the crown metal cap with the bottle opener.

Abstract: A crown-type metal cap comfortable for opening by turning or with a bottle opener. The metal cap before folding, has a bell-shaped closure flange with a plurality of intercalated protrusions and depressions, the protrusions have a smaller width than the width of the depressions, and each depression has on its outer edge a convex fold; such that when closing the closure flange is folded over the mouth of the bottle, each protrusion bifurcates into a pair of minor protrusions that acquire a curved shape separated by a central depression that takes a similar form within a spheroid, forming a flange surface comfortable to touch to facilitate manual opening by turning; whereas the convex fold of each depression prevents the collapse of the outer edge of the depression to form a bell-shaped opening edge for easy opening of the metal cap with the bottle opener.