Magnetic-tape deck

Claim 1

A magnetic-tape deck for cassettes (1) containing a magnetic tape (2) which can be transported between two reels (3A, B), which deck comprises: a- a chassis (4); b- at least one magnetic head (7A, B) which is movable in a circular path; c- a drum (5) having a circumferential surface (6) for guiding a length of magnetic tape which is wrapped around a part of the drum and which co-operates with the magnetic head; d- a playing-loop device for withdrawing a length of magnetic tape from the cassette (1) and subsequently wrapping it around the drum (5) to form a playing loop in a "playing" mode of operation of the deck, the drum (5) being situated in the central part and the reels (3A, B) at the ends of the playing loop, which playing-loop device comprises: d1- first and second playing-loop guides (8A, B) for guiding the playing loop in guide positions upstream and downstream respectively of the drum (5), and d2- first and second playing-loop-guide supports (10A, B) which are movable between an inoperative position (Fig. 1), in which the playing-loop guides (8A, B) are disposed in the cassette (1), and an operative position (Fig. 2), in which the playing-loop guides (8A, B) are in said upstream and downstream guide positions; e- fast-winding means for the fast winding or the magnetic tape between the reels in the cassette during a "fast forward winding" or "fast reverse winding" mode of operation of the deck, which means comprise a fast-winding-loop device for withdrawing a length of magnetic tape from the cassette and subsequently guiding it to form a fast-winding loop outside the cassette, which fast-winding-loop device comprises: e1- at least one fast-winding-loop guide, e2- a fast-winding-loop-guide support for the fast-winding-loop guide, which support is movable between an inward position, in which the fast-winding-loop guide is disposed inside the cassette at the back of the magnetic tape, and a fastrwinding position, in which the fast-winding-loop guide is disposed outside the cassette, and e3- a positioning device for moving the fast-winding-loop-guide support between the said positions; and f- one or more draining elements (16A, B) of an electrically conductive material which during fast winding is or are in contact with the front of the length of magnetic tape that has been withdrawn from the cassette to form a fast-winding-loop, and which drains or drain static electricity from the front of the magnetic tape; characterized in that the or each draining element (16A, B) is arranged on one or a respective one of the playing-loop-guide supports (10A, B) in a position substantially opposite the playing-loop guide (8A, B) on that support and on the oppposite side of the magnetic tape from said guide.