Patent ID: 8079895
Filing Date: 2011-12-20
Classification: B24B,B25B,B65G,C03B

Abstract:
1. A glass-plate working apparatus comprising: grinding means for grinding a peripheral edge of a glass plate; grinding supporting means for supporting the glass plate whose peripheral edge is to be ground by said grinding means; and transporting means for transporting said glass plate in and out said grinding supporting means by a linear movement thereof crossing above said grinding supporting means, wherein said grinding supporting means includes a grinding supporting table, a plurality of suction cups which are held on said grinding supporting table by being attached by suction to said grinding supporting table and suck and hold the glass plate by sucking the glass plate whose peripheral edge is to be ground, said plurality of suction cups being separated from each other, and arranging means for disposing said plurality of suction cups, respectively, at positions corresponding to a shape of the glass plate to be ground, and wherein said arranging means includes a suction-cup supporting body for supporting said suction cups separately from said grinding supporting table, a suction-cup lifting device for raising the suction cup which is supported by said grinding supporting table or the suction-cup supporting body, and a suction-cup moving device which is adapted to move said suction cup raised by said suction-cup lifting device from on said grinding supporting table onto said suction-cup supporting body or from on said suction-cup supporting body onto said grinding supporting table in correspondence with the shape of the glass plate whose peripheral edge is to be ground by said grinding means, wherein said transporting means includes one lifting device for raising the glass plate to be carried in and another lifting device for raising the glass plate on the suction cup to be carried out, wherein said transporting means and said suction-cup moving device share a slider to which said suction-cup lifting device, said one lifting device and said other lifting device are attached, and which is linearly movable in one direction, wherein said grinding supporting table of said grinding supporting means is movable in the different direction from said one direction in which said slider is linearly movable, wherein said arranging means is adapted to move said suction-cup lifting device by a linear movement of said slider in said one direction and a movement of said grinding supporting table of said grinding supporting means so as to be capable of arranging said suction-cup lifting device at a position corresponding to a shape of glass plate on said grinding supporting table, wherein said suction cup includes a glass plate sucking portion whose upper surface is covered with an elastic member for abutting against the glass plate, an abutment body for abutting against said grinding supporting table having a recessed surface, a connecting portion for connecting said abutment body and said glass plate sucking portion, a first communicating hole for communicating with a first opening opening on a peripheral surface of the abutment body and a second opening opening on an upper surface of the glass plate sucking portion, and a second communicating hole for communicating with a third opening opening on the peripheral surface of the abutment body and a fourth opening opening on the recessed surface, wherein each of said plurality of suction cups is adapted to suck and hold the lower surface of the glass plate through the second opening and to be suckingly fixed to the supporting plate through the fourth opening.