Back to results
US 4,933,032 AGranted
Process for preparing a ready-to-assemble motor vehicle glazing
AssigneeSaint-Gobain Vitrage
InventorHeinz Kunert
Life of this patent
Estimating the term…
Loading patent…
Loading patent…
AssigneeSaint-Gobain Vitrage
InventorHeinz Kunert
Estimating the term…
Preparation of a ready-to-assemble glazing intended to be glued in the frame of a window opening of the vehicle body. According to the invention, two adhesive beads (18,15) are deposited, simultaneously or immediately after one another, on glass sheet (1), or on an opaque coating (10) in the shape of a frame adhering to sheet (1). The adhesive compound that forms the first bead (18) is selected or treated so that this bead sets in a relatively short time. The adhesive compound forming the second bead (15) is selected or treated so that this bead (15) remains plastically deformable and adhesive for a sufficient period to be used directly for gluing the glazing in the window opening during its assembly. Adhesive bead (18), which sets in a short time, optionally makes it possible to fasten parts of the structure frame, for example a tearing wire (21), and it advantageously comprises a shaped sealing lip (20).
A process for preparing a glazing, in particular a motor vehicle glazing, for assembly in a window opening frame by gluing the marginal area of the glazing to a fastening flange of the window opening frame, in which at least two adhesive beads are placed on the glazing by extrusion of an adhesive compound from an extrusion nozzle, a first bead already being set when the glazing is put into place in the window opening frame and a second bead forming an active assembly bead for fastening the glazing in the window opening frame, characterized in that the adhesive beads are placed on the glazing during a single extrusion operation and a differentiated treatment of the two adhesive beads ensures that the first bead sets in a short time before assembly of the glazing in the window opening while the second bead remains plastically deformable and adhesive until the glazing is placed in the window opening.
A process for preparing a glazing, in particular a motor vehicle glazing, for assembly in a window opening frame by gluing the marginal area of the glazing to a fastening flange of the window opening frame, in which a shaped bead is extruded on the glazing and is selectively set along lateral areas of the cross section of the adhesive bead before assembly of the glazing in the window opening frame, while the median part of the adhesive bead remains plastically deformable and adhesive until the glazing is placed in the window opening.
Dependencies are inferred from the claim text.