Title:
ELECTROMAGNETIC DRIVE DEVICE
Document Type and Number:
Japanese Patent JPS5963971
Kind Code:
A
Abstract:
PURPOSE:To prevent the weight of a stationary magnetic unit from excessively increasing by composing to have a large area at the center of the unit and small sectional areas at both ends. CONSTITUTION:Stationary magnetic units 13, 14 are disposed in parallel at the prescribed air gap, and are not closed at both ends. A movable magnet 3 can be freely moved in the lengthwise direction of the units 13, 14, and a coil 21 is uniformly wound on the unit 13. The units 13, 14 have in section small areas at the ends and large area at the center in structure.
Inventors:
MORINO SEIJI
KAWAI HISASHI
KAWAI HISASHI
Application Number:
JP17384782A
Publication Date:
April 11, 1984
Filing Date:
October 05, 1982
Export Citation:
Assignee:
NIPPON SOKEN
International Classes:
H02K33/16; H02K41/02; (IPC1-7): H02K33/16
Domestic Patent References:
| JPS5588558A | 1980-07-04 | |||
| JPS5537502B2 | 1980-09-29 |
Attorney, Agent or Firm:
Aoki Akira