TAPE CARTRIDGE

摘要

A tape cartridge is detachably installed on a cartridge installation portion of a tape printing apparatus having a platen supporting shaft and a printing head. A base end of the platen supporting shaft is fixed to the cartridge installation portion at one end of the platen supporting shaft. The tape cartridge includes the platen roller, the upper bearing portion, the lower bearing portion, and the fitting portion. The platen roller includes an upper and lower engagement portion. The upper bearing portion rotatable supports the upper engagement portion and restricts movement of the upper engagement portion. The lower bearing portion rotatable supports the lower engagement portion and restricts movement of the lower engagement portion. The fitting portion in which a tip end of the platen supporting shaft passing through the platen roller fits when the tape cartridge is installed on the cartridge installation portion.

主权项

1. A tape cartridge detachably installed on a cartridge installation portion of a tape printing apparatus having a platen supporting shaft and a printing head, a base end of the platen supporting shaft being fixed to the cartridge installation portion at one end of the platen supporting shaft and extending in an attaching/detaching direction of the tape cartridge, the tape cartridge comprising:
the platen roller through which the platen supporting shaft passes when the tape cartridge is installed on the cartridge installation portion and which receives a pressing force from the printing head when a printing operation is performed in a state in which the tape cartridge is installed on the cartridge installation portion, the platen roller including an upper engagement portion and a lower engagement portion; the upper bearing portion which rotatable supports the upper engagement portion and restricts a movement of the upper engagement portion in a radial direction of the platen roller within a given range; and the lower bearing portion which rotatable supports the lower engagement portion and restricts a movement of the lower engagement portion in the radial direction within a given range; and the fitting portion in which a tip end of the platen supporting shaft passing through the platen roller fits when the tape cartridge is installed on the cartridge installation portion.