Abstract: An operating lever device for a magnetic recording tape transport apparatus which uses a tape cassette and which sets a magnetic recording tape transport mode in response to an electrical signal from signal generator, comprises a first base plate, a second base plate parallel to the first base plate with a distance therebetween, a first operating lever disposed between the base plates to be movable along the base plates between a first position to stop the signal from the generator and a second position in which the generator is allowed to generate the signal, a second operating lever disposed between the base plates to be movable along the base plates between first and second positions and parallel to the moving direction of the first operating lever, an auxiliary operating lever disposed between the base plates to be movable along the base plates among first, second, third and fourth positions and perpendicularly to a direction of movement of the first and second operating levers, the auxiliary operating le

Abstract: An operating lever device for a magnetic recording tape driving apparatus which comprises a first base plate, a second base plate disposed parallel to the first base plate, and an operating lever disposed between the base plates so as to be able to move along the base plates between first and second positions. A signal generator is caused to produce an electric signal when the operating lever is located in the second position, and when a tape cassette is set on the second base plate so that a magnetic recording tape is driven in accordance with the electric signal by a motor with the aid of a pair of reel shafts.

Abstract: A signal detection operating lever device comprises a first base plate, a second base plate parallel to the first base plate, a first operating lever between the base plates movable between a first position in which signal generator stops generating signal to stop running of a recording tape and a second position in which the signal generator generates the signal to determine a recording tape transport mode in the tape recorder, a second operating lever having a magnetic head and disposed between the base plates to move the magnetic head between a first position in which the head is separated from a tape and a second position in which the head comes in contact with the tape, an accidental erasure preventive lever movable between a first position in which the second operating lever is prohibited to move from the first position to the second position thereof, and a second position in which the second operating lever is allowed to move from the first position to the second position thereof, a third operating lev

Abstract: A cassette tape recorder used with a tape cassette loaded therein comprises a pair of capstans, a motor, a power transmission mechanism, a first and a second magnetic head assembly, a moving mechanism and a magnetic head assembly operation switching circuit. The motor rotates selectively in one or the other direction at the same constant speed and with the same characteristics. The transmission mechanism is coupled to the capstans and to the motor for transmitting the rotation of the motor to the capstans to cause simultaneous rotation of the capstans in one or the other direction at the same constant speed. The first and second assemblies move between a first position in contact with the tape in the loaded tape cassette and a second position spaced apart from the tape.