Automatic reverse cassette type recorder

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT There will now be described by reference to the accompanying drawing an automatic reverse cassette tape recorder embodying this invention.
Referring to FIG.
1, a cassette tape of the automatic reverse cassette tape recorder of this invention comprises a movable chassis 16 rotatably fitted to a fixed chassis 14 by means of a pair of rotation pins 11, 12.
As in the Staar system, the movable chassis 16 rises upward in a rotated state when a locking mechanism 20 is released by the insertion of a cassette 18.
When the movable chassis 16 rises, the cassette 18 is supported on a reel mechanism 22.
A rotation torque is transmitted from a motor 24 to the reel mechanism 22 by means of a motive power-transmitting mechanism 26.
A head-supporting board 30 carrying a pair of recording-reproduction heads 27, 28 is rotatably fitted to the fixed chassis 14.
The paired recording-reproduction heads 27, 28 are each of the 4-track 2-channel type and spaced from the rotation center of the head-supporting board 30 at the same distance.
A rotatable cam board 32 designed to rotate the head-supporting board 30 for the alternate push of the paired recording-reproduction heads and a plunger mechanism 34 are also mounted on the fixed chassis 14.
A rotatable pinch roller-supporting board 40 is also mounted on the fixed chassis 14 at a point above the head-supporting board 30.
This pinch roller-supporting board 40 is provided at one end with a pinch roller 38 for clamping a tape with the aid of a capstan shaft 36 set on the movable chassis 16.
A tape FF lever 42 is also provided on the fixed chassis 14.
When the pinch roller-supporting board 40 is rotated to retract the pinch roller 38 the tape FF lever 42 effects the quick run of a cassette tape.
An erase head 44 is retractively set on the fixed chassis 14, which is also fitted with an erase head changeover mechanism 46 for controlling the forward and backward movements of the erase head 44.
In addition to the above-mentioned mechanical parts, a head circuit changeover switch 48 and motor polarity changeover switch 50 are mounted on a printed circuit board (not shown) disposed below the fixed chassis 14