BRAKE DEVICE FOR COAXIAL REEL TAPE RECORDERS

摘要

AbstractA brake apparatus is provided for taperecorders, particularly of the coaxial reel type, inwhich a single brake pad, mounted on a brake arm,engages a pair of adjacent coaxially disposed drivewheels for coaxial tape reels. The brake arm isbiased by a spring into braking engagement with thedrive wheels. A solenoid is operable to withdrawthe brake arm, thereby disengaging the brake, whenenergized. The solenoid is controlled to be energizedwhenever a drive motor for the tape reels is powered,and to be deenergized when the drive motor is notpowered. The disclosed structure providesautomatic braking for the tape reels whenever thedrive motor loses power or is shut off, thus providingpositive mechanical braking both in a power losscondition and in a parking condition for the tape reels.