Title:
ELECTROMAGNETIC FORCE GENERATING DEVICE FOR ELECTROMAGNETIC BALANCE TYPE WEIGHING DEVICE
Document Type and Number:
Japanese Patent JP2014235147
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide an electromagnetic force generating device in which strong electromagnetic force acts on a force coil.SOLUTION: A magnetic circuit comprises: a first magnet 21; a second magnet 22 whose magnetic pole faces that of the first magnet; a third magnet 23 whose magnetic pole faces that of the second magnet; a first pole piece 31 between the first magnet and the second magnet; a second pole piece 32 between the second magnet and the third magnet; a yoke 11 which surrounds them; a first counter yoke part 13 facing the first pole piece; and a second counter yoke part 14 facing the second pole piece. The force coil comprises: a first coil 41 between the first pole piece and the first counter yoke part; and a second coil 42 between the second pole piece and the second counter yoke part. The first coil and the second coil are wound round in the reverse direction so that electromagnetic force in the same direction acts on them. The electromagnetic force to act on the first coil and the second coil are added together so that strong force acts on the force coil.
Inventors:
NAITO KAZUFUMI
TERUNUMA KOZO
FUJIWARA KAZUSHI
IKEJIMA TAKASHI
ISHIDA SHINICHIRO
NAGAYA TOMOHIKO
SUMITOMO HISATO
TAKAHASHI YASUTO
FUJIWARA KOJI
TERUNUMA KOZO
FUJIWARA KAZUSHI
IKEJIMA TAKASHI
ISHIDA SHINICHIRO
NAGAYA TOMOHIKO
SUMITOMO HISATO
TAKAHASHI YASUTO
FUJIWARA KOJI
Application Number:
JP2013118751A
Publication Date:
December 15, 2014
Filing Date:
June 05, 2013
Export Citation:
Assignee:
SHINKO DENSHI KK
International Classes:
G01G7/02
Domestic Patent References:
| JP5469002B2 | 2014-04-09 | |||
| JPH0618248Y2 | 1994-05-11 |
Attorney, Agent or Firm:
Kimiharu Ohashi