Operating mechanisms of tape recorders

Claim 1

In an operating mechanism of a tape recorder of the type wherein according to play, fast forward running and rewinding modes, the operation of a motion transmitting mechanism including a first idler roller, a second idler roller and a third idler roller is switched by an operating plate operatively connected with plungers of a first and a second solenoid so as to selectively transmit driving torque of a driving motor to a take-up reel post and to a supply reel post through said motion transmitting mechanism, the improvement which comprises means to rotate said operating plate about a center of rotation thereof according to the movement of the plunger of an energized one of said solenoid, means to linearly move said operating plate in accordance with the movements of the plungers of said solenoids when they are energized simultaneously; a head mechanism for moving a magnetic head to a play position during the play mode whereas for moving the head away from the play position during another modes; a connecting member connected between said head mechanism and said center of rotation; spring means provided for said connecting member for normally urging said head away from said play position; a brake mechanism operatively connected to the plunger of said first solenoid; and means for operating said brake mechanism to apply a braking force to said take-up reel post and to said supply reel post when neither of said solenoids is not energized and to release said take-up and supply reel posts when at least one of said solenoids is energized.