| 摘要 |
Two kinds of large and small cassettes having respective unlocking apertures for fitting a common unlocking member therein can be loaded onto a chassis. When the cassettes are loaded in position with their tape centers in coincidence, the unlocking apertures are displaced from each other by DELTA Y. Mounted on the chassis are a pair of pivotal levers each supporting a reel support on a free end thereof, a drive slide reciprocatingly movable on the chassis for controlling the rotation of the pivotal levers and moving the reel supports to two different positions corresponding respectively to the large and small cassettes, a drive gear for driving the slide, and pressure contacting mechanism disposed between the gear and the slide for positioning and holding the slide in two cassette loading positions by pressing contact, with the rotation of the gear. The drive slide has the unlocking member projecting from its upper surface and is slidingly movable only by the distance DELTA Y in corresponding relation with the cassette loading positions.
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