Reel with single-piece core, for rolls and rolls of tape, especially self-adhesive (Machine-translation by Google Translate, not legally binding)

摘要

Reel with single-piece core, for rolls and rolls of tape, especially self-adhesive, characterized by the fact that the core is formed by two concentric cylindrical walls, between which an annular space is established, determined by a small central partition, which maintains the two concentric sleeves at the proper distance, having practiced, in the external cylindrical wall, a regular succession of parallel and alternating notches that start perpendicularly from both outer edges of said wall, in order to confer a certain flexibility that facilitates the penetration of the core into the inside of the central passage of the coil or ribbon roll, being firmly fixed to it. (Machine-translation by Google Translate, not legally binding)