PURPOSE: To extend the applications considerably and to miniaturize and simplify the constitution by using the 1st and 2nd large diameter cam gears provided integratedly so as to drive the 1st and 2nd small diameter cam gears.
CONSTITUTION: In driving a drive motor, a drive gear 1 is drived counter clockwise, a causing the 1st small diameter cam gear 8 meshed with the 1st large diameter cam gear 3a to be drive clockwise. As a result, a tape loading gear 14 is driven clockwise via coupling gear 14aW14c to retract a tape loading block, a sub block and a guide post or the like and also to retract a pinch roller by the other gear assembly coupled with the gear 14b. In this case, since a recessed part 12a of a cam 12 of the 2nd small diameter cam gear 9 if opposed to a projection 4b of the 2nd large diameter cam gear, the gear 9 is kept stationarily with respect to the driven gear 1.
MURAMATSU HIDEAKI
YAMADA KIMICHIKA
OKADA HITOSHI
GOSHIMA YOSHIHIKO
OKAWA HIROYUKI
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