HEATER AND IMAGE FORMING APPARATUS

• Main Authors: NAKAO MOTOHARU, ITO KAZUYOSHI, MORISAKI SO, INOUE TORU, KOYANAGI KIYOSHI, MIYATA TOSHIYUKI, HARA TOKO
• Format: Patent
• Language: English; Japanese
• Published: 07.10.2021
• Subjects: CINEMATOGRAPHY; ELECTROGRAPHY; ELECTROPHOTOGRAPHY; HOLOGRAPHY; MAGNETOGRAPHY; PHOTOGRAPHY; PHYSICS

To reduce temperature unevenness of a heating unit in a belt width direction and a circumferential direction.SOLUTION: A heater comprises: a rotating unit that rotates; a conveying belt that rotates together with the rotating unit while sandwiching a material to be heated between the rotating unit and the conveying belt and conveys the material to be heated; a heating unit that has a contact surface that is in contact with an inner peripheral surface of the conveying belt and a non-contact surface that is in non-contact with the inner peripheral surface of the conveying belt, and generates heat to heat the material to be heated with the conveying belt therebetween; and a heat pipe that is arranged along an inclination direction with respect to a belt width direction of the conveying belt to be in contact with the non-contact surface of the heating unit, and transfers heat along the belt width direction with the action of hydraulic fluid encapsulated therein.SELECTED DRAWING: Figure 4 【課題】加熱部の温度ムラをベルト幅方向及び周方向において低減する。【解決手段】加熱装置は、回転する回転部と、前記回転部との間に被加熱材を挟んで該回転部と共に回転し、該被加熱材を搬送する搬送ベルトと、前記搬送ベルトの内周面に接触する接触面と、前記搬送ベルトの内周面に対して非接触とされた非接触面と、を有し、発熱により前記搬送ベルトを介して前記被加熱材を加熱する加熱部と、前記加熱部の非接触面に対して接触するように、前記搬送ベルトのベルト幅方向に対する傾斜方向に沿って配置され、内部に封入された作動液の作用により前記傾斜方向へ熱移動させるヒートパイプと、を備える。【選択図】図４