Title:
SHUTTER DEVICE AND IMAGING APPARATUS
Document Type and Number:
Japanese Patent JP2021043377
Kind Code:
A
Abstract:
To suppress a fluctuation in a position of a yoke of an electromagnet in a shutter device.SOLUTION: A shutter device 100 has: a base plate 1 having an opening 1a through which light passes; blade units 19 and 20 that are held by the base plate turnably in a position blocking the opening and in a position opening the opening; drive members 9 and 10 that are turnably held by the base plate, and turn the blade unit by urging force of a drive spring 16t; a holding member 2 that is fixed to the base plate; and an electromagnet that is held by the holding member, and attracts an armature 11 provided in the drive member. The electromagnet has: a bobbin 6; a coil 5 that is wound around the bobbin; and a yoke 8 that is inserted into a hollow portion of the bobbin. Power distribution to the coil causes the armature to be absorbed into the yoke. The yoke is inserted into the hollow portion so as to be fixed to the bobbin. An engagement portion 6a provided in the bobbin engages with the holding member, such that the bobbin is fixed to the holding member.SELECTED DRAWING: Figure 4
Inventors:
KAWANAMI ATSUSHI
Application Number:
JP2019166571A
Publication Date:
March 18, 2021
Filing Date:
September 12, 2019
Export Citation:
Assignee:
CANON KK
International Classes:
G03B9/36
Attorney, Agent or Firm:
Ryosuke Fujimoto
Atsushi Mizumoto
Hirayama Tomoya
Atsushi Mizumoto
Hirayama Tomoya