| 摘要 |
A—lid (20) for a container (21) comprises: a central surface (27) having a substantially circular shape, on which a line of weakening (30) is made, which defines a closing element (39) which can be opened by pulling, made in the central surface (27); and a drive tab (22), having at least a first end (25) to act as a fulcrum outside the line of weakening (30) connected to the closing element (39) with a rivet (23) and able to be driven so as to remove upward, the closing element (39) from the remaining part of the central surface (27), detaching it along the line of weakening (30). The line of weakening (30) is interrupted at one end of the closing element (39) opposite to the drive tab (22), so that the closing element (39) has a connection flap (34) solid with the remaining part of the central surface (27). In the case of aluminium, the rivet is located at 1.5-3.5 mm from the front part of the closing element (39). In the case of ferrous allogs, this distance is 4.0-6.0 mm. |
