| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a cutter mechanism achieving high swinging property of a fixed blade, reliably cutting a recording sheet from both the right and left sides thereof without leaving an uncut portion and achieving simplification of a shape of the fixed blade and cost reduction. <P>SOLUTION: The cutter mechanism includes: a fixed blade 11 which has one edge side serving as a cutting edge 11a and another edge side serving as a root portion 11b; a fixed blade holder 12 for holding the fixed blade at a position away from a base portion 20 so as to cause the cutting edge to swing up and down around the root portion; a movable blade which cuts the recording sheet while sandwiching the recording sheet with the fixed blade; and a biasing member 13 which biases the fixed blade in the direction moving away from the base portion, wherein the fixed blade holder includes: a wall portion 21 which is provided to protrude on the base portion, is brought into contact with the root portion, and positions the fixed blade in the sliding direction of the movable blade; a first regulating member 22 which regulates lifting of the cutting edge of the fixed blade; and a second regulating member 23 which regulates lifting of the root portion of the fixed blade in a state in which a predetermined gap is formed between the base portion and the root portion. <P>COPYRIGHT: (C)2011,JPO&INPIT</p> |
