Title:
SIGNAL PICKUP DEVICE
Document Type and Number:
Japanese Patent JPS56145569
Kind Code:
A
Abstract:
PURPOSE:To prevent the damage of the disc at the contact time, by providing the pickup arm with a permanent magnet piece and a coil and by generating forces, by which the reproducing stylus is pressed to and separated from the disc, in the permanent magnet piece when a current is flowed to the coil. CONSTITUTION:In this device, the reproducing stylus in the tip side of the pickup arm which has the base side supported by the elastic supporting material scans the rotary disc relatively to reproduce the information signal. Pickup arm 7 is provided with permanent magnet piece 9, and coil 6 is provided separately from and opposedly to magnet piece 9, and permanent magnet piece 9 and coil 6 are so connected that forces by which reproducing stylus 4 is pressed to and separated from disc 2 are generated in permanent magnet piece 9 when a current is flowed to coil 6.
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Inventors:
TAJIMA OSAMU
Application Number:
JP4900580A
Publication Date:
November 12, 1981
Filing Date:
April 14, 1980
Export Citation:
Assignee:
VICTOR COMPANY OF JAPAN
International Classes:
G11B3/08; G11B3/085; G11B3/12; G11B9/06; G11B21/03; G11B21/10; G11B21/12; G11B21/20; (IPC1-7): G11B3/08; G11B3/12; G11B11/00; G11B21/20
Domestic Patent References:
| JPS5512588A | 1980-01-29 |