Tape cartridge
AssigneeSeiko Epson Corporation
InventorTaishi Sasaki
Life of this patent
Estimating the term…
Abstract
A tape cartridge mounted to a tape printer includes a ribbon feeding core on which an ink ribbon is wound so as to be capable of being fed and a ribbon winding core that winds the ink ribbon fed from the ribbon feeding core. In the tape cartridge, the ribbon feeding core includes a core body that winds the ink ribbon and a shaft engaging part formed at an end portion of the core body and engaged with a feeding-side driving shaft of the tape printer. The shaft engaging part protrudes in an axial direction of the core body from an end surface of the core body and is formed in a crown shape in which a plurality of convex portions and a plurality of concave portions are alternately arranged side by side in a circumferential direction.
Claims4
A tape cartridge for mounting to a tape printer, comprising:
- a ribbon feeding core on which an ink ribbon is wound for being fed, the ribbon feeding core including:
- a core body that winds the ink ribbon;
- and
- a shaft engaging part formed at an end portion of the core body, the shaft engaging part being configured to engage a feeding-side driving shaft of the tape printer when the tape cartridge is mounted to the tape printer, the shaft engaging part protruding in an axial direction of the core body from an end surface of the core body and having a crown shape in which a plurality of convex portions and a plurality of concave portions are alternately arranged side by side in a circumferential direction, each convex portion being disposed at a distal end portion in the axial direction with a guide slope configured to guide a spline convex part of the feeding-side driving shaft into the concave portion when the tape cartridge is mounted to the tape printer, and the shaft engaging part engaging a rotation stop part that stops rotation of the ribbon feeding core when the tape cartridge is not mounted to the tape printer, a bottom surface of each concave portion being positioned axially inward from the end surface of the core body;
- and
- a ribbon winding core that winds the ink ribbon fed from the ribbon feeding core.
Dependencies are inferred from the claim text.