Invention Grant
US09250580B2 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 有权
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

  • 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
  • Application No.: US13953110
    Application Date: 2013-07-29
  • Publication No.: US09250580B2
    Publication 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
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
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.
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