CPC G03G 15/2057 (2013.01) [G03G 15/2053 (2013.01)] | 20 Claims |
1. A heating device, comprising:
a belt having a tubular shape; and
a contact member provided inside the belt, the contact member having an arc shape along an inner peripheral surface of the belt and slidably in contact with the inner peripheral surface of the belt, wherein
when an amount of deflection of the belt is D, a radius of curvature of the inner peripheral surface of the belt is A, and a radius of curvature of the outer peripheral surface of the contact member is B, equations (1) and (2) are satisfied:
D≥10 mm (1), and
0.4 mm≥A−B≥0 mm (2).
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