| 摘要 |
<p>PURPOSE:To stably move a memory detector in interlocking with a reel base without increasing the number of parts for the device by interlocking the reel base with the memory detector and moving them in accordance with the size of a case. CONSTITUTION:In a memory detector moving mechanism, a pedestal 135 is moved by a required stroke L2 of the memory detector when a 3rd driving gear 138 is rotated by one revolution. Then, in a reel base moving mechanism, a 1st large gear 125 is rotated by about 1/4 revolution by rotating one revolution of a 2nd driving gear 134, thus moving linearly a take-up reel base 3' by a required stroke L1. The gear 138 and the gear 134 are the same in diameter. Consequently, while the detector is moved by L1, the reel base 3' can be moved by L2. Moreover, as to the relationship between the gear 125 and the gear 134 in this constitution, an acceleration mechanism is constituted by the gear 134 against the gear 125, thus absorbing a difference between the strokes L1 and L2.</p> |
