Patent ID: 6408726
Filing Date: 2002-06-25
Classification: B21D,B23Q,Y10T

Abstract:
Sheet working center comprising:a body; a work table whereon a sheet to be worked is placed; means for holding and moving said sheet on said table; upper and lower tools for working on opposite sides of said sheet at a working level; and a transfer device for moving said lower tool in a direction perpendicular to the plane of said sheet, said lower tool being mounted in said transfer device which is movable along said direction relative to said body, said lower tool being movable by said transfer device to at least the following positions relative to said body a) a first position below said working level whereat said lower tool is accessible for exchange and/or maintenance; b) a second position whereat said lower tool is positioned substantially at said working level for cooperating with said upper tool to work on said sheet; and c) a third position whereat said lower tool is positioned below said working level and movable therefrom to said working level to work on said sheet.