Title:
ROTATING CYLINDER DEVICE
Document Type and Number:
Japanese Patent JPH0660348
Kind Code:
A
Abstract:
PURPOSE: To properly keep the balance for rotation and to effectively reduce the number of parts.
CONSTITUTION: Coaxially arranged upper cylinder 1 and lower cylinder 13, a recording and reproducing magnetic head 6 and an erasing magnetic head 7 attached to the upper cylinder 1, and a motor which drives the upper cylinder 1 are provided. A PC magnet 2a for PG(phase generator) signal generation which is projected from a rotor magnet 2 and the erasing magnetic head 7 are arranged with the same phase or opposite phases different by 180°, and thus, a single balance plate 8 is used as a balance to rotate the device.
Inventors:
UJO TATSUZO
Application Number:
JP22469892A
Publication Date:
March 04, 1994
Filing Date:
July 31, 1992
Export Citation:
Assignee:
CANON KK
International Classes:
G11B5/53; G11B5/024; G11B15/467; (IPC1-7): G11B5/53; G11B5/024; G11B15/467
Attorney, Agent or Firm:
Kokubun Takaetsu
Next Patent: REVERSE ROTARY HEAD