| 摘要 |
A device for carrying out creases fit for a machine (M) for working a cardboard sheet or similar and comprising a tool (2) of a disc shape. The tool (2) comprises at least a side disc means (3, 4) and a circular blade means (5) fixed protruding to the at least side disc means (3, 4). The peripheral edges of said at least a side disc means (3, 4) and of a circular blade means (5) being fit to carry out a crease with cuts on the sheet matching by pressure a face thereof. |
