Roller type fixing device of copying machine

Abstract

Abstract PURPOSE:To exactly draw out a form by a simple operation, by utilizing an opening and closing operation of an opening and closing part which is opened necessarily for removing the form when it is jammed, and interlocking this operation with a pair of rollers. CONSTITUTION:When an upper frame 2 is turned upward and is set to an opening position, a lever body 31 and an adjusting screw lever 23 are separated, and the first lever 10 is turned downward around a supporting shaft 11 by a plate spring 25, therefore, a pressure roller 15 and a heating roller 8 are separated. Accordingly, a form existing between both the rollers 8, 15 can be drawn out easily. When the upper frame 2 is turned downward and is set to a closed position, the lever body 31 abuts on the screw lever 23, depressing force F1 which works on a pin 20 is increased by a lever ratio, and works on a pin 18 as force F2, by which the first lever 10 is turned upward, and the pressure roller 15 is brought into press-contact with the heating roller 8 by large force.

Inventors

• 👤 Shinji Matsumoto
• 👤 真治 松本

Bibliographic Details