Patent ID: 6624840
Filing Date: 2003-09-23
Classification: B41C

Abstract:
A sucking device for sucking a flexible thin plate on a top surface of a base, said device comprising:a suction path with at least one aperture on the top surface of the base; a suction unit operable to suck air from the apertures via said suction path; a suction line in communication with said suction path and said suction unit; a valve device provided on said suction line, and operable to open and close said suction line; a hollow body provided on said suction line between said valve device and said suction unit, said hollow body having an internal pressure that can be decreased by an operation of said suction unit; and a controller operable to open said valve device, either when the internal pressure of said hollow body has reached a predetermined value or lower, or in accordance with a duration of operation of said suction unit.