Patent ID: 8649720

Claim:
An image heating apparatus comprising: a heating rotatable member configured to heat a toner image on a recording material; an excitation coil, provided outside of said heating rotatable member, configured to generate a magnetic flux for an electromagnetic induction heating in said heating rotatable member; a plurality of magnetic cores, opposed to said heating rotatable member through said excitation coil and arranged along a longitudinal direction of said heating rotatable member, configured to direct the magnetic flux toward said heating rotatable member; a retracting device configured to retract at least one movable magnetic core of said magnetic cores from a first position to a second position which is farther away from said excitation coil than the first position; and an electroconductive member extending along a retracting direction of said movable magnetic core so as to oppose to one end side of said movable magnetic core which is in the second position in a rotational direction of said heating rotatable member.