Abstract: A lock-releasing mechanism for a magnetic record/playback apparatus wherein one plunger is used for changeover of an auto-reverse mechanism and lock-release of FF- and/or REW-operating rod for an automatic music sensor. The lock-releasing mechanism includes a stopper interlocked with the FF- and/or REW-operating rod so as to restrict the pulling stroke of the plunger when the FF- and/or REW-operating rod is locked.

Abstract: A tape pack ejecting mechanism wherein a tape pack is loaded and unloaded into and from a pack receiving structure pivotally connected at one end portion thereof to a chassis so as to allow pivotal movement thereof, locking of the pack receiving structure in a tilted position is released by loading of the tape pack, bringing the tape pack into a horizontal playback position, and the pack receiving structure is again tilted through rotation of an engaging member upon depressing of an eject lever to eject the tape pack, which mechanism is characterized by a guide provided at one side portion of the pack receiving structure for guiding the loading and unloading of the tape pack; and eject operating member with a tension spring attached thereto which is slidably provided on the guide; said eject operating member having a hanging portion engageable with a rear end of the tape pack and a projection engageable with a lock portion formed on the engaging member; said tension spring being biased to urge when the tape p

Abstract: In a cartridge type magnetic type recorder of the type wherein an operating frame and a cartridge receiving frame are pivotally interconnected, the receiving frame is moved to the reproducing position in a direction perpendicular to the direction of loading of the cartridge so as to couple the cartridge with a driving motor and reproducing or recording head, there are provided a pin for one side of the operating frame, a cartridge ejecting lever having a cam, and a sliding frame having a cam slot. The pin cooperates with the cam and cam slot for ejecting the cartridge.