| 摘要 |
A lid for containers, such as cans which have an edge (B) connected to a side flank (2A) of the container (2). The has a groove (10) having a “U” section following around the side flank (2A) of the container (2). A pre-fracture line (3) is made in a bottom (10A) of the groove (10). A weakening line is provided in an edge joining an inner wall (10B) of the groove (10). The groove receives a tool (50) for at least partially removing the lid from the respective container following breaking of the pre-fracture line (3) and a consequent oscillation of the inner wall (10B) of the groove inwards around the weakening line (4). The lid has an anti-fracture line (5) made on the bottom of the groove (10), the anti-fracture line (5) increasing resistance to stresses acting on the bottom (10A). |
