Rotary cylinder power feeding apparatus

摘要

A rotor rotating integrally with the rotary cylinder is rotatably fitted to a supporting member. A conductive member is arranged on the outer peripheral surface of this rotor. A conductive connecting terminal connectable with the power generating part is arranged at one end of the supporting member and a conductive brush for feeding voltage from the power source generating part to the electronic circuit through the above mentioned conductive member is arranged at the other end of the supporting member. By fitting the supporting member to the chassis without using lead wires and soldering, the power source voltage from the power generating part will be able to be fed to the electronic circuit within the rotary cylinder and the power feeding apparatus will be able to be very easily fitted to the rotary cylinder. Further, a center angle of one conductor of a plurality of conductors forming the conductive members is formed to be larger than the tape winding angle on the rotary cylinder and the lead wires and connectors are arranged near the magnetic head. Therefore, the joint between the plurality of conductors does not contact the conductive brush when the magnetic head is in contact with the magnetic tape, so that electronic noise generated when the joint between the conductors contacts the conductive brush will not affect the recorded and reproduced signals.