Title:
電子時計のムーブメント及び電子時計
Document Type and Number:
Japanese Patent JP6886902
Kind Code:
B2
Abstract:
To lower magnetic influence on a stepping motor covered by a magnetic shielding plate in an electronic timepiece and a movement, a movement (3) of an electronic timepiece (1) includes a stepping motor (10) having a rotor (13), a stator (12), and a coil (11) in which a conductive wire is wound around a coil winding core (11a); and a magnetic shielding plate (50) that covers at least a part of the stepping motor (10), wherein the magnetic shielding plate (50) includes slits (51), (52) as magnetic flow changing portions that change magnetic flows which are directed toward the coil winding core (11a) to magnetic flows which are not directed toward the coil winding core (11a), and the slits are formed in portions of the magnetic shielding plate, which correspond to extended lines (16a), (16b) from both end portions (11c), (11d) of the coil winding core (11a), respectively, to intersect with the extended lines (16a), (16b).
Inventors:
Shinnosuke Sakata
Daisuke Nakahira
Yoshikazu Matsumura
Morita Shoichiro
Yusuke Hirota
Daisuke Nakahira
Yoshikazu Matsumura
Morita Shoichiro
Yusuke Hirota
Application Number:
JP2017172946A
Publication Date:
June 16, 2021
Filing Date:
September 08, 2017
Export Citation:
Assignee:
CITIZEN WATCH CO.,LTD.
International Classes:
G04C3/00; G04C3/14; G04G17/00
Domestic Patent References:
| JP58112991U | ||||
| JP2017053634A | ||||
| JP2016151429A | ||||
| JP2012163456A | ||||
| JP55010532A | ||||
| JP2017026461A | ||||
| JP2001108764A |
Foreign References:
| WO1999067596A1 |
Attorney, Agent or Firm:
Cleo International Law & Patent Office