| 摘要 |
A core for supporting a rolled label strip which can be quite easily attached to and detached from the core supporting device of a label printing and applying machine without being released during the use of the machine. The core comprises: an attaching section formed in a first end face of a cylindrical body and provided with an inner bore, raised faces formed on the first end face, fitting recesses formed on a second end face, ribs for engaging with a mandrel, formed on the inner wall surface of the cylindrical body in the direction parallel to the axis of the cylindrical body, and a plurality of grooves formed in the inner wall surface of the cylindrical body in the direction parallel to the axis of the cylindrical body.
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