Patent ID: 7610006
Filing Date: 2009-10-27
Classification: G03G

Abstract:
1. An image heating apparatus, comprising: a coil for generating magnetic flux; a rotatable heat generation member for generating heat by magnetic flux, which is generated by said coil, and which acts on said heat generation member, to heat an image on a recording material; a holder for supporting said coil, said holder having a shape such that an outer surface of a central portion of said holder is more recessed than an outer surface of an end portion of said holder with respect to a rotational axis direction of said heat generation member; a magnetic flux decreasing member for decreasing magnetic flux acting on said heat generation member by being inserted into a gap between said heat generation member and said holder; and drive means for driving said magnetic flux decreasing member, wherein said outer surface of said holder is provided with a plurality of projection portions including a central projection portion disposed at said central portion of said holder and an end projection portion disposed at said end portion of said holder, said end projection portion having a height larger than a height of said central projection portion.