Patent ID: 9290985
Filing Date: 2016-03-22
CPC Classification: E06B

Claim Text:
1. A method using a production line for assembling a window sash having an integrated insulating glass pane, said insulating glass pane having a frame formed from plastic hollow profiles, said frame having lower edges an upper horizontal leg, an inner face, an outer face facing away from the inner face, and two flanks connecting the inner face and the outer face to each other, wherein the frame has two parallel webs on said inner face and each web having an outer face and vertical edges as well as horizontal edges, the webs having a space therebetween, which flanks and faces constitute an all-around delimitation of a window opening of the window sash and are adhesively secured to two glass plates, said two glass plates being held spaced apart by the two webs, said method comprising the steps of: setting up the frame and the glass plates in a vertical position or in a position which is inclined by a few degrees against the vertical by setting up the glass plates and the frame on a horizontal conveyor and securing the glass plates from falling over, wherein the glass plates comprise vertical edges, lower edges, horizontal edges and sides; injecting by a first machine of the production line a paste-like adhesive compound, wherein a moisture-binding material is embedded in said paste-like adhesive compound, into the space between the two webs; applying by a second machine of the production line a continuous line of a sealing compound onto the respective outer faces of the webs, which face away from each other; orienting and holding by a third machine of the production line the two glass plates and the frame such that the two glass plates are located opposite each other to be congruent or almost congruent and so that the frame stands between the two glass plates and is oriented such that the glass plates and the edges of the two webs are centered towards each other; and pressing in the third machine of the production line the two glass plates against the webs facing them; wherein the step of orienting and holding comprises the steps of: bringing the glass plates and the frame by horizontal conveying, into a position wherein the glass plates and the frame are located next to each other and the vertical edges of the glass plates and of the two webs of the frame are centered to each other in a conveying direction, while the lower edges of the glass plates and of the frame are still located in a common plane, lifting the glass plates relative to the frame or lowering the frame relative to the glass plates, until the horizontal edges of the glass plates and of the two webs of the frame are centered relative to each other with respect to a height position of the two webs, centering the horizontal edges of the glass plates and of the webs of the frame relative to each other by holding the glass plates with suction devices, said suction devices acting on the sides of the glass plates facing away from each other and lowering the horizontal conveyor with the frame standing on the horizontal conveyor, and during the lifting or lowering step, catching the upper horizontal leg of the frame by an adjusting device for adjusting a position of the upper horizontal leg of the frame prior to pressing the glass plates against the webs of the frame facing the webs.