Vertically adjustable lateral glass pane for automobiles

Details Vertically adjustable lateral glass pane for automobiles Vertically adjustable lateral glass pane for automobiles

1993-02-10

1995-01-10

Robinson, Ellis P.

Stock material or miscellaneous articles

Structurally defined web or sheet

296 841, 296 89, 428192, 428212, 428213, 428215, 428220, 428410, 428426, 428437, B32B 906, C03C 2712

Patent

active

053805755

ABSTRACT:
A vertically adjustable glass pane for automobiles, especially a door window pane, is of laminated glass consisting of two thermally toughened single glass sheets, each 1.5 to 3 mm thick, and of a thermoplastic intermediate layer. Both the glass sheets have, in their edge region, tensile stresses in the core having a value from 27 to 57 MN/m.sup.2 for a sheet thickness of 1.5 mm and 20 to 47 MN/m.sup.2 for a sheet thickness of 3 mm. In the middle area within the peripheral region the glass sheets have tensile stresses in the core which, in the case of a glass sheet of 1.5 mm thickness, have values of 25 to 42 MN/m.sup.2 and, with a glass thickness of 3 mm, values of 17.5 to 33 MN/m.sup.2. Laminated glass panes of this type have a comparatively high strength in the peripheral region and low strength in the middle area. They possess excellent properties both from a structural design standpoint and also from the standpoint of safety in case of accident.

REFERENCES:
patent: 3558415 (1971-01-01), Rieser
patent: 3592726 (1971-07-01), Blizard
patent: 4075381 (1978-01-01), Furukawa
patent: 5198304 (1993-03-01), Kramling

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