Patent ID: 6527323
Filing Date: 2003-03-04
Classification: B25J

Abstract:
A suction pad capable of attracting and transporting a workpiece, said suction pad comprising:a proximal section for connection to a negative pressure supply source; a skirt section contacting with said workpiece to form a space under a negative pressure, wherein said skirt section has a bellows section which has a cross section of a substantially wave shape comprising a bent section and an attracting section flexibly attached to said bent section, said attracting section having an attracting surface; and a circumferential edge section formed on an outer periphery of said attracting section, wherein said attracting section has a plurality of projections separated from each other by predetermined spacing distances and a recessed portion which are formed on said attracting surface thereof, wherein said circumferential edge section and said projections have a substantially constant height with respect to said recessed portion and said recessed portion has a substantially constant depth with respect to surfaces of said projections, said recessed portion enabling a fluid under the negative pressure to be supplied to the entirety of said attracting surface except for said projections and said circumferential edge section.