| 摘要 |
PURPOSE:To miniaturize a device by arranging the positioning pin of a control plate on the same axis as the positioning pin of a magnetic sheet pack to eliminate positioning pins on the outside of the magnetic sheet pack. CONSTITUTION:A positioning pin 150 consists of an outer cylinder 200 and a pin 202 engaged with the inside of the outer cylinder. The outer cylinder 200 is stuck to a device body 23 and is fitted to the positioning hole 10A of a magnetic sheet pack 10 to position the magnetic sheet pack 10 in a prescribed position. The pin 202 is fitted to the recessed part 205 of a receiving member 204 attached to the rear face of a control plate holder 88 to position the control plate holder 88. Since the control plate holder 88 is positioned by the pin 202 in the space of the magnetic sheet pack 10, it is unnecessary to provide positioning pins on the outside of the magnetic sheet pack 10, and the device is miniaturized.
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