Abstract: A cassette holder mechanism includes right and left cassette holders independently supporting opposite side marginal portions of a cassette and having guide rollers inserted in guide holes of right and left chassis side walls. Each cassette holder includes a gap at its side portion which engages guide shafts attached to each chassis side wall.

Abstract: A cassette holder mechanism in a tape player includes an elongated hole formed in a cassette holder and engaging a pin extending from a guide arm so as to allow a limited relative movement of the cassette holder with respect to the guide arm, and includes a positioning spring for urging the cassette holder downwardly so that cassette in the cassette holder is reliably set at a predetermined position in a horizontal configuration.

Abstract: A cassette insertion detection mechanism includes stoppers provided independently of a cassette holder and configured to hold one end surface of a cassette. The stoppers are movable with respect to the cassette holder and resiliently biased toward a front direction of the cassette holder. The stoppers turn on or off insertion detecting switches provided on side walls of a tape recording apparatus to activate a cassette loading driving motor to proceed a cassette loading operation when both insertion detecting switches are turned on or off by the stoppers.

Abstract: A tape recorder for a cassette having an inner lid includes a misplate pivotably engaging a connection plate bridging right and left side plates. The misplate is pivotable within a limited angle to overhang a space defined by the side plates and the connection plate in order to reject double cassette insertion and prevent floating motion of the inner lid at a predetermined mode position.

Abstract: A tape player having a rotating drum head such as VTR etc. characterized in that a holder, on which at least a guide roller for the tape is mounted outside of the tape path, is disposed movably between its retreated position, where it doesn't interfere with the loading block and the subblock, and its advanced position, where it fronts on the tape path, and is energized towards its retreated position, that control means controlling the movement of the holder arm towards its advanced position is provided, and that an operating member to operate the control means, after this subblock has passed through a position which is occupied by the guide roller in the advanced position of the holder arm, is disposed on the subblock.

Abstract: A dust door mechanism in a tape player includes a dust door wider than a cassette insertion aperture, and a cassette holder which includes a major part narrower than the dust door and a front end defining a door accepting portion wider than the dust door.

Abstract: A driving force branching gear mechanism, which is useful for a tape recorder provided with a rotary head, etc., is disclosed, in which a driving gear consisting of two great diameter cam gears fixed to each other in one body and two small diameter cam gears driven by the two great diameter cam gears, repsectively, are disposed and they are so arranged that each of the small diameter cam gears is driven, only when its gear section is in opposition to each of the great diameter cam gears and that its cut-off portion for fixation is located on the projecting portion of the cam section of each of the great diameter cam gears and fixed there, when the cam section of each of the small diameter cam gears is in opposition to the cut-off portion of the gear of each of the great diameter cam gears.

Abstract: The TV system includes an audio tape recording apparatus, a videotape recording apparatus and a video camera device having a video camera and associated control circuits, so that the video camera device is controlled by signals reproduced by the audio tape recording apparatus or by the videotape recording apparatus and video signals from the well-controlled video camera device are recorded on a videotape by the videotape recording apparatus.

Abstract: A device for transporting a plurality of slide film mounts in either direction between a pair of magazines in a slide film projector comprises a pair of endless mount-driving belts, each of which has a stretch adapted to run across the open end of each magazine in close contact therewith and at least a pair of spaced mount-catching stepped shoulder portions formed in the belt surface facing the open ends of the magazines. In operation from a starting position, each belt is driven by actuating a starting button so that a mount, if engaged by a shoulder portion, is received in one of the magazines by the movement of that shoulder portion of the belt, and, thereafter, one of the mounts housed in the other magazine is caught by that shoulder portion of the belt and moved out of that other magazine toward the film projection gate, stopped, and held thereat for projection so as to complete a cycle. Continuous operation may be effected manually or automatically by a control circuit.