Brake device for coaxial reel tape recorders

Details Brake device for coaxial reel tape recorders Brake device for coaxial reel tape recorders

1982-09-24

1985-09-24

Levy, Stuart S.

Winding, tensioning, or guiding

Strand tensioning device

Tortuous course

242 754, G11B 1532, B65H 2306

Patent

active

045428646

ABSTRACT:
A brake apparatus is provided for tape recorders, particularly of the coaxial reel type, in which a single brake pad, mounted on a brake arm, engages a pair of adjacent coaxially disposed drive wheels for coaxial tape reels. The brake arm is biased by a spring into braking engagement with the drive wheels. A solenoid is operable to withdraw the brake arm, thereby disengaging the brake, when energized. The solenoid is controlled to be energized whenever a drive motor for the tape reels is powered, and to be deenergized when the drive motor is not powered. The disclosed structure provides automatic braking for the tape reels whenever the drive motor loses power or is shut off, thus providing positive mechanical braking both in a power loss condition and in a parking condition for the tape reels.

REFERENCES:
patent: 3052421 (1962-09-01), Fischer
patent: 3173623 (1965-03-01), Schoebel
patent: 3995789 (1976-12-01), Carle
patent: 4079899 (1978-03-01), Vogel
patent: 4310131 (1982-01-01), Althuber et al.
patent: 4327881 (1982-05-01), Fohl

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