| 摘要 |
<p>PROBLEM TO BE SOLVED: To accurately position a holding body at a prescribed position with a comparatively simple constitution. SOLUTION: This device is equipped with the holding body 66 for holding a recording medium and a moving mechanism 86 for moving this holding body 66 in the vertical direction, and the moving mechanism 86 is equipped with a moving member 102 formed with guide positioning grooves 116, 118 and pins to be guided 120, 122 provided on the holding body 66, where the pins to be guide 102, 122 are freely movably accepted by the guide positioning grooves 116 and 118 respectively. These guide positioning grooves 116, 118 are equipped with positioning groove parts 116a and 116b and then (118a, 118b) corresponding to positions where the holding body 66 should be positioned and moving groove parts 116c, (118c) existing between these positioning groove parts, where the moving groove parts 116c, (118c) are largely inclined, while the positioning groove parts 116a, 116b and then (118a, 118b) are gently inclined.</p> |
