| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a coreless roll detachable device which winds a continuum of ink ribbon without using a core such as a paper pipe to form a hollow coreless roll, and on the other hand, holds a hollow coreless roll on a rotary shaft and rewinds it to the continuum. <P>SOLUTION: Eight attachment holes are formed so as to be a regular octagon on the periphery of a rotary disk 18. Positioning pins 13 inscribing the hollow portion of a coreless ribbon 2 and support pins 23 are attached to the attachment holes. When a coreless roll is installed, a diameter expansion holding means 19 is also provided to curve at least the support pins 23 of the positioning pins 13 and the support pins 23 to the outside in the radial direction so that middle portions in the shaft direction separate each other, and holds the roll from the inside of the hollow portion. <P>COPYRIGHT: (C)2012,JPO&INPIT |
