Abstract: A reel disc driving device for a video cassette recorder comprises a clutch wheel disposed between a driving pulley and a driving gear, which can directly transmit the driving force of the pulley to the gear depending on the selection of operating mode. Mounted to a cylindrical hub of the pulley is a torque generating mechanism which can produce variably a torque required for driving the gear. The variable torque generating mechanism includes a pair of one-way clutch springs coupled to the hub of the pulley and the gear, resepectively, which is actuated in an opposite relationship with each other so that the torque is variably adjusted upon the switching of selected operating mode, maintaining constantly the rotating torque of the gear for each of the operating modes.

Abstract: An audio head position adjusting device for use in a video cassette recorder comprises a support plate rotatably mounted on a deck of the recorder, a mounting plate movably supported on the support plate and carrying an audio head thereon, and a unitary resilient member for biasing the mounting plate upwardly. The mounting plate is associated with the support plate by azimuth adjusting screws which are used to adjust a vertical position of the audio head and by a tilt adjusting screw which is used to adjust an inclined position of the audio head. The support plate is provided with a horizontal adjusting mechanism at its outer portion, which is adapted to adjust the audio head in a horizontal direction. The horizontal adjusting mechanism includes toothed lugs provided in the vicinity of a curved slot of a bent flange of the support plate, and an adjusting knob engaged with the toothed lugs of the support plate and rotatably held in a recessed groove of the deck.