Head drum assembly for a tape recorder
AssigneeSamsung Electronics Co., Ltd.
InventorsChung-hum Baik, Tae-gil Kang, Sung-hee Hong, Do-young Choi
Life of this patent
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Abstract
A head drum assembly for a compact-size camcorder such as a digital video camera comprised of a drum cover, stationary and rotating drum, a subcircuit board, a stationary and rotating transformer and a motor stator and rotor. By forming the drum cover, which is attached to the shaft of the rotary drum above the rotary drum, with a conductive material such as an aluminum alloy, the need for a conductive bushing member and earthing plate for the insulating drum cover of the head drum assembly can be omitted, resulting in an overall simpler. As the number of components and manufacturing steps decreases, the manufacturing costs decrease and productivity increases.
Claims16
A head drum assembly for a tape recorder, comprising:
- a rotary drum supporting a magnetic head thereon, and being rotatably disposed on a shaft;
- a stationary drum and a drum cover secured to the shaft to be positioned vertically on lower and upper parts of the rotary drum with the rotary drum being interposed therebetween;
- a sub circuit board, a stationary transformer and a rotary transformer, each being disposed between the stationary drum and the rotary drum for signal transmission with the magnetic head;
- a motor stator mounted on the stationary drum;
- and
- a motor rotor disposed in the rotary drum to oppose the motor stator and rotate, wherein
- the drum cover is formed of a conductive material and press-fitted on the shaft, and a connecting member is disposed on the conductive body of the drum cover for supporting and electrically connecting the sub circuit board with the conductive body.
Dependencies are inferred from the claim text.