| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a roll medium holding mechanism capable of regulating positional displacement to a spool of the roll recording medium or the holding member thereof without separately preparing a mechanism for locking the same recording medium to the spool. <P>SOLUTION: The mechanism holds a roll sheet 30 being a recording medium in a spool. A flange 31 is supported movably in an axial direction of a shaft member 36 of the spool. A shaft central core 40 for holding includes a cylindrical part inserted into the end of shaft member 36, pilot guides 42 projecting toward an outer periphery in a radial direction to abut on an inner surface of a central core tube of the roll sheet 30, and a plurality of elastic members 43 arranged between the pilot guides. The elastic members 43 are deformable in the radial direction of the roll sheet 30, and in a state that it is attached to the shaft member 36 of the roll sheet 30, the elastic member 43 abut also on the shaft member 36 in addition to the inner periphery surface of the central core tube 30a of the roll sheet 30 to impart abutment pressure and regulates displacement in the axial direction of the flange 31 and the axial direction of the shaft member 36 of the shaft central core 40. <P>COPYRIGHT: (C)2012,JPO&INPIT |
