Abstract: A flange of a tape guide has a guide for guiding tape with its circumference, independently of this an adjusting arrangement is provided on a base supporting the flange to allow varying slant of cylindrical portion of the guide, and the flange is pushed to the base. Slant of an upper flange of the tape guide can be adjusted easily and securely. This will not give excessive ruling force to the tape to prevent the tape edges from being damaged.

Abstract: A reel position device for shifting reel supports, on which reels are mounted, corresponding to diameters of the reels of plural different sizes and/or distances between the reels and for positioning and holding the reel supports at a predetermined position, and a magnetic recording apparatus usign such reel support shifting device, wherein one end of each of operation members for shifting the reel supports is rotatably engaged by a corresponding pivot shaft arranged at a predetermined radial position of each of rotary members driven by a motor. The other end of said operation member is engaged by a guide in a reel support shifting structure and by a guide slot formed in a fixed part of the device. A positioning and holding mechanism such as a V-shaped notch is provided in each guide slot. Positioning and holding forces are obtained from elastic members such as springs connected to the rotary members.

Abstract: A magnetic recording/reproducing apparatus for recording onto or reproducing from a magnetic tape housed in a cassette by using a rotary magnetic head having a tape withdrawal arrangement for winding a portion of the tape between the two reels in the cassette around the rotary magnetic head by a predetermined angle. A tape drive feed the magnetic tape at a constant speed, with a reel drive being provided for driving either one of the two reels so as to take up the magnetic tape in the reel driven by the reel drive, and with brake arrangement for braking the rotation of the reels. A ring-shaped cam operating member is provided in the outer peripheral surface or the inner peripheral surface thereof with cam surfaces each for effecting the operation of the respective elements in response to the mode of operation of the magnetic recording/reproducing apparatus.

Abstract: A magnetic recording and reproducing apparatus such as a video tape recorder has a first gear mechanism, a second gear mechanism, an operation cam rotable by power of the first gear mechanism, tape operation driving mechanisms actuated by the operation cam, a tape loading mechanism driven by the power of the second gear mechanism, and a driving power transmission change-over mechanism for transmitting the torque of a motor selectively to the first and second gear mechanisms.

Abstract: A magnetic recording/reproducing apparatus for recording onto or reproducing from a magnetic tape housed in a cassette by using a rotary magnetic head having a tape withdrawal arrangement for winding a portion of the tape between the two reels in the cassette around the rotary magnetic head by a predetermined angle. A tape drive feed the magnetic tape at a constant speed, with a reel drive being provided for driving either one of the two reels so as to take up the magnetic tape in the reel driven by the reel drive, and with brake arrangement for braking the rotation of the reels. A ring-shaped cam operating member is provided in the outer peripheral surface or the inner peripheral surface thereof with cam surfaces each for effecting the operation of the respective elements in response to the mode of operation of the magnetic recording/reproducing apparatus.