| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide an electromagnetic induction heating type image heating apparatus which is capable of being downsized by reducing its lengthwise dimension and has high heat generating efficiency by suppressing heat generation of an urging member. <P>SOLUTION: The image heating apparatus includes: a rotatable heating member 4 having an electroconductive layer 4a, a rotatable pressing member 2 in press-contact with an outer peripheral surface of the heating member, the urging member 5 located inside the heating member and configured to urge the heating member toward the pressing member, a heating device 7 for heating the electroconductive layer through induction heating, and a magnetic flux confining member 6 for confining the magnetic flux from the heating device 7 so as not to act on the urging member. In the image heating apparatus, a recording material P carrying an image T is heated at a press-contact portion N created by press-contact between the heating member and the pressing member. The heating device 4 faces a part of peripheral surface and side surface of the heating member 4. The magnetic flux confining member 6 has a length B greater than the length F of the heating means 7 in a rotational axis direction of the heating member. The heating means 7 has the length F longer than the length B in the rotational axis direction of the heating member 4. <P>COPYRIGHT: (C)2010,JPO&INPIT</p> |
