| 摘要 |
A brake assembly of tape-feed mechanism comprises a rack, magnetic tape feed unit and take-up reel with brake pulleys arranged on the rack, and flexible element enclosing the pulleys and spring. The flexible element and spring are connected by ends to the rack and to pusher of electromagnet. The spring by one end is directly connected to the pusher of electromagnet, and the flexible element is kinematically connected by central portion to the pusher through a roller with drive annular groove additionally mounted on its axle. |
