Heating roller having electrodes for supplying power to a heatin

Details Heating roller having electrodes for supplying power to a heatin Heating roller having electrodes for supplying power to a heatin

1994-12-23

1996-07-02

Pendegrass, Joan H.

Photocopying

Contact printing

Light boxes

219216, 219471, 439 25, G03G 1520

Patent

active

055328075

ABSTRACT:
In a heating roller, electrode members come in contact with power supplying members for supplying power to a heating element. The electrode members are resiliently fitted to the heating element. Power is supplied from the power supplying members to the heating element through the electrode members. In this heating roller, it is possible to solve problems about cracks, etc. caused by thermal expansion, etc. of each of the heating element, the electrode members and an electric conductor formed by materials having different coefficients of thermal expansion. Accordingly, reliability of the heating roller is high and the heating roller is safe. The heating roller may have a bearing for rotatably supporting the heating roller; a structural member for supporting the bearing; and a rotating force transmitting member arranged in an electrode member resiliently fitted to the heating element or arranged in a conductive resilient member between the heating element and the electrode member so that rotating force of the heating roller is obtained from the exterior thereof.

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