Title:
CARRIAGE DRIVING DEVICE
Document Type and Number:
Japanese Patent JPS6389046
Kind Code:
A
Abstract:
PURPOSE: To lower the reluctance of a magnetic circuit, and to miniaturize and lighten a device by oppositely arranging first and second coils at fine intervals from the magnetic poles of two magnets.
CONSTITUTION: A pickup 1 is supported slidably by a guide bar 2. A carriage plate 5 fixing a drive coil 4a and a speed detecting coil 4b is supported slidably by a sub-guide bar 6 disposed in parallel with the guide bar 2. The drive coil 4a and the speed detecting coil 4b are arranged oppositely with slight gaps on the lower sides of two magnets 8a, 8b magnetized in the thickness direction. When driving currents are caused to flow through the drive coil 4a, the pickup 1 and the carriage plate 5 are moved integrally.
Inventors:
IKEDO YUJI
Application Number:
JP23324686A
Publication Date:
April 20, 1988
Filing Date:
October 02, 1986
Export Citation:
Assignee:
PIONEER ELECTRONIC CORP
International Classes:
G11B21/08; G11B21/02; H02K33/18; (IPC1-7): G11B21/02; H02K33/18
Domestic Patent References:
| JP60079285B |
Attorney, Agent or Firm:
Seiichi Oka