| 摘要 |
<p>PURPOSE: To enable a changeover of traveling of a tape to quick feed operation in both directions and traveling directions and to contrive miniaturization and easy assemblage by equipping 1st and 2nd operating members, a tape speed changeover mechanism and a tape direction changeover piece. CONSTITUTION: The changeover piece 126 is fitted with a stud 111 into a long slot 127 in the reciprocating direction of the members 108 and 109, and hence capable of reciprocation in the parallel direction to the members 108 and 109 and also pivotable around the stud 111 as a fulcrum. Bothe side edges of the changeover piece 126 are slant edges 128 and 129, and are positioned in front of changeover piece pressing parts 120 and 125 in the directions of the members 108 and 109 respectively. A circular-arcuate surface 130 having the center of curvature at a front end part of the long slot 127 is formed on the forward side of the changeover piece 126, and one end of a member 131 is arranged in close proximity to this circular-arcuate surface 130. When the member 108 is advanced, the changeover piece 126 is turned to the left by pressing part 120, and when the member 109 is advanced, the changeover piece 126 is pivoted to the right by the pressing part 125 respectively.</p> |
