Patent ID: 7805102

Claim:
A heating device comprising a structure which heats a heating target material pressure-contacted, via a film body, with a sliding surface of a heating support member and a heating surface of a heating body, which is disposed to be exposed in part of the sliding surface of the heating support member, while moving the heating target material together with the film body and having an arbitrary lubricant agent interposed between (A) the sliding surface of the heating support member and the heating surface of the heating body and (B) the film body; wherein a groove approximately uniformly guiding the lubricant agent is provided on the sliding surface of the heating support member; and wherein a plurality of the grooves are formed in a direction orthogonal to the moving direction of the film body, in such a manner that each of the grooves is provided so as to be inclined and extended with respect to the moving direction of the film body; and wherein the inclination angles of the plurality of grooves are set to be mutually different.