Heatable laminated side pane
AssigneeSaint-Gobain Glass France
InventorsMarcel Klein, Bernhard Reul, Bernd Stelling
Life of this patent
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Abstract
A heatable laminated side pane for an openable side window of a vehicle is described. The side pane has an upper edge, a lower edge, a front edge, and a rear edge. The side pane also includes an outer pane and an inner pane, which are bonded to one another via a thermoplastic intermediate layer. The side pane also has at least one heating wire embedded in the intermediate layer. The heating wire runs between a first busbar and a second busbar and is electrically connected to the busbars, which are arranged along the front edge or the rear edge.
Claims18
A heatable laminated side pane for an openable side window of a motor vehicle, said heatable laminated side pane comprising:
- an upper edge, a lower edge, a front edge, and a rear edge,
- an outer pane and an inner pane, said outer pane and said inner pane bonded to one another via a thermoplastic intermediate layer, and
- at least one heating wire embedded in the intermediate layer, said heating wire electrically connected to a first busbar and a second busbar,
- wherein:
- the first busbar and the second busbar are arranged along a same edge of the front edge and the rear edge,
- the first busbar is arranged on a surface of the intermediate layer and the second busbar is arranged overlappingly on an opposite surface of the intermediate layer,
- a maximum distance of the first busbar or the second busbar from a respective front edge or rear edge is less than 3 cm, and
- a minimum distance of the first busbar or the second busbar from said respective front edge or rear edge is greater than 3 mm.
A method for producing a heatable laminated side pane, comprising:
- cutting a thermoplastic intermediate layer to size;
- applying a first busbar and a second busbar onto at least one surface of the intermediate layer;
- applying at least one heating wire onto the at least one surface of the thermoplastic intermediate layer, wherein the at least one heating wire is electrically connected to said first busbar and said second busbar;
- arranging the intermediate layer between an outer pane and an inner pane;
- and
- bonding the outer pane to the inner pane via the thermoplastic intermediate layer by lamination,
- thereby producing the heatable laminated side pane that comprises
- an upper edge, a lower edge, a front edge, and a rear edge,
- the outer pane and the inner pane, said outer pane and said inner pane bonded to one another via the thermoplastic intermediate layer, and
- the at least one heating wire embedded in the thermoplastic intermediate layer, said heating wire electrically connected to the first busbar and the second busbar,
- wherein the first busbar and the second busbar are arranged along a same edge of the front edge and the rear edge,
- wherein the first busbar is arranged on a surface of the intermediate layer and the second busbar is arranged overlappingly on an opposite surface of the intermediate layer,
- wherein a maximum distance of the first busbar or the second busbar from a respective front edge or rear edge is less than 3 cm, and
- wherein a minimum distance of the first busbar or the second busbar from said respective front edge or rear edge is greater than 3 mm.
Dependencies are inferred from the claim text.