| 摘要 |
<p>PURPOSE:To promote the positioning accuracy in case of engaging an engaging part provided to a tape drawing mechanism with an engaging recessed part of a positioning member on completion of operating the mechanism by slanting a virtual bisector of an opening angle of the engaging recessed part against a center line of a chassis guide groove and abutting the engaging part against the side of a smaller part of a generated angle. CONSTITUTION:A cassette is set in a prescribed position, and a loading gear fitted freely rotationally to an end part of a lever 35 is rotated. Then, a tape is drawn from the cassette by extruding a tape guide roller 33 along the guide groove 30 of a main base via the lever 35, a connecting link 34 and a slider 32. After extruding further in the direction of (e), the roller 33 is moved up to be engaged with the interior part of an engaging groove 36 of a guide catcher 37 by abutting against the groove 36 on the side of making an angle theta4, so that the tape is wound around a rotary cylinder by the roller 33. However, since a pressure angle theta6 to a line of action (f) as formed by the side of groove 36 and the link 34 is settled as small, the pressure against the roller 33 is diminished.</p> |
