HEAT ROLLER

A heat roller, comprising a cylindrical sheet-like heating element having a resistance member buried in an insulation member, wherein the sheet-like heating element is disposed between an inner tube and an outer tube, the outer tube is formed longer than the inner tube so that the nonuniformity of h...

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Bibliographic Details
Main Authors KONISHI, MASAO, KIMURA, MASATOSHI, MORI, MITSUHIRO, SANPEI, KOICHI
Format Patent
LanguageEnglish
French
Japanese
Published 11.12.2003
Edition7
Subjects
CINEMATOGRAPHY
ELECTROGRAPHY
ELECTROPHOTOGRAPHY
HOLOGRAPHY
MAGNETOGRAPHY
PHOTOGRAPHY
PHYSICS
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Summary:A heat roller, comprising a cylindrical sheet-like heating element having a resistance member buried in an insulation member, wherein the sheet-like heating element is disposed between an inner tube and an outer tube, the outer tube is formed longer than the inner tube so that the nonuniformity of heat in the heat roller can be reduced, and the coefficient of thermal expansion of the material of the outer tube is made larger than that of the material of the inner tube. A triple tube heat roller may be provided. L'invention concerne un rouleau chauffant présentant un élément de chauffage cylindrique de type feuille doté d'un élément de résistance incrusté dans un élément isolant. L'élément de chauffage est placé entre un tube intérieur et un tube extérieur. Le tube extérieur est plus long que le tube intérieur afin de réduire la diversité de la chaleur dans le rouleau chauffant. Le coefficient de dilatation thermique du matériau constituant le tube extérieur est plus grand que celui du matériau constituant le tube intérieur. Un rouleau chauffant à trois tubes peut être produit.
Bibliography:Application Number: WO2002JP05442