Invention Grant
- Patent Title: Image heating apparatus having rotatable heating member, excitation coil, and a plurality of magnetic cores or core groups arranged along a longitudinal direction of the rotatable heating member
- Patent Title (中): 图像加热装置具有可旋转的加热构件,励磁线圈和沿着可旋转加热构件的纵向方向布置的多个磁芯或芯组
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Application No.: US13953110Application Date: 2013-07-29
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Publication No.: US09250580B2Publication Date: 2016-02-02
- Inventor: Kenjiro Sugaya
- Applicant: CANON KABUSHIKI KAISHA
- Applicant Address: JP Tokyo
- Assignee: Canon Kabushiki Kaisha
- Current Assignee: Canon Kabushiki Kaisha
- Current Assignee Address: JP Tokyo
- Agency: Fitzpatrick, Cella, Harper & Scinto
- Priority: JP2012-168932 20120730
- Main IPC: G03G15/20
- IPC: G03G15/20

Abstract:
An image heating apparatus includes: a rotatable heating member; an coil provided outside the heating member and configured to generate heat by electromagnetic induction in the heating member; a coil holder configured to hold the coil; a plurality of magnetic cores arranged opposed to the heating member along a longitudinal direction of the heating member with the coil interposed therebetween; a core holder configured to hold at least one of the magnetic cores which is movable; and a moving mechanism configured to move the core holder between a first position and a second position which is farther away from the heating member than the first position. The core holder is provided with a stopper portion configured to stop movement of the core holder from the second position to the first position by abutment to the coil holder.
Public/Granted literature
- US20140029994A1 IMAGE HEATING APPARATUS Public/Granted day:2014-01-30
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