Patent ID: 9139394
Filing Date: 2015-09-22
Classification: B65H

Abstract:
1. A roll medium feeding apparatus in which a first support shaft supporting a roll medium with a long medium wound in a roll shape is mounted in a freely attached and detached manner, and which unwinds and feeds the long medium from the roll medium by rotating the roll medium around the first support shaft, comprising: a mounting portion to which the first support shaft, which supports a roll medium, is mounted, the first support shaft is freely attached and detached from the mounting portion in a direction perpendicular to a longitudinal axis of the first support shaft, wherein a notch is formed in the mounting portion and includes an upper end that is open and a lower end that is closed, wherein the notch is inclined from the upper end toward the lower end, wherein the first support shaft is rotatably supported by the lower end of the notch; a pair of second gear wheels that can be meshed with a first gear wheel that is integrally provided on the first support shaft and is disposed concentrically with the first support shaft, the pair of second gear wheels can be rotated around a second shaft which is disposed so as to be parallel to the first support shaft which is mounted to the mounting portion; and a displacement mechanism which is operated so as to displace each of the pair of second gear wheels between a meshed position to be meshed with the first gear wheel and a separated position separated from the first gear wheel.