| 摘要 |
PURPOSE:To prevent the damage of a roller surface, by constituting a mechanism such that a peeling claw, making press contact with a roller surface firmly adhered to a sheetform matter, such as surface image forming device, can slide in an axial direction and is energized in a given energizing direction to the roller surface by a spring means. CONSTITUTION:A peeling claw 8 can rectilinearly move through a guide 10 and is pressed against a roller (1B) surface through the force of a spring 9. Then, an angle D of an energizing direction FA of the spring 9 with a tangent line at a contact Q is set to 45 deg. or less. Thus, the component forces of the press FA are produced such that FA is larger than FB. If the component force FB is produced enough high to peel a sheet, the component force FC in a direction of a normal line may be low, and a friction between the roller 1B and a forward end 8D of the peeling claw 8 can be reduced. If a jam occurs and a force in an opposite direction to that of FB is exerted on the peeling claw 8, the force becomes lower than FB, and a steady force is maintained. This prevents the damage of the roller surface. |
