Glazing unit equipped with peripheral sealing means and its manufacturing process

Patent metadata

Field	Value
Publication number	US-9695627-B2
Application number	US-201314370723-A
Country	US
Kind code	B2
Filing date	Jan 4, 2013
Priority date	Jan 6, 2012
Publication date	Jul 4, 2017
Grant date	Jul 4, 2017

Abstract

A glazing unit includes a substrate having two opposing external faces and a peripheral edge face linking the two faces, as well as a peripheral sealing arrangement added at the border of the substrate against its edge face and its two external faces, wherein the sealing arrangement includes at least two seals cooperating respectively with the two external faces of the substrate, and with the edge face of the substrate, the two seals forming a zone of overlap over one another on the edge face of the glazing unit.

First claim

The invention claimed is:

1. A glazing unit comprising a substrate having two opposing external faces and a peripheral edge face linking the two external faces, and a peripheral sealing arrangement added at a border of the substrate against the peripheral edge face and the two external faces, wherein the sealing arrangement comprises at least two seals, each one of the two seals cooperating with the peripheral edge face of the substrate and with one of the two external faces of the substrate so that said one of the two seals extends over said one of two external faces without extending over the other one of the two external faces, the two seals forming a zone of overlap over one another on the peripheral edge face of the substrate, said zone of overlap having a length along a direction of a thickness of the substrate that is equal to or less than the thickness of the substrate, wherein each seal has a profile provided with a first linear wing, a second linear wing and a curved part linking the first and second linear wings, each seal being elastically deformable and being in a deformed state on said substrate so that an angle between the first and the second wing of the seal in said deformed state is greater that an acute angle that exists between the first and the second wing of the seal in a nondeformed state.

2. The glazing unit as claimed in claim 1 , wherein the length of the zone of overlap is less than the thickness of the substrate.

3. A glazing unit comprising a substrate having two opposing external faces and a peripheral edge face linking the two external faces, and a peripheral sealing arrangement added at a border of the substrate against the peripheral edge face and the two external faces, wherein the sealing arrangement comprises at least two seals, each one of the two seals cooperating with only a different one of the two external faces, and with the peripheral edge face of the substrate, the two seals forming a zone of overlap over one another on the peripheral edge face of the substrate, said zone of overlap having a length along a direction of a thickness of the substrate that is equal to or less than the thickness of the substrate,
wherein each seal has a profile provided with a first linear wing, a second linear wing and a curved part linking the first and second linear wings, each seal being elastically deformable and being in a deformed state on said substrate so that an angle between the first and the second wing of the seal in said deformed state is greater that an acute angle that exists between the first and the second wing of the seal in a nondeformed state.

4. The glazing unit as claimed in claim 3 , wherein the seals are removable.

5. The glazing unit as claimed in claim 4 , wherein the seals are mounted on the substrate by being clipped thereto.

6. The glazing unit as claimed in claim 3 , wherein the seals are unitary parts, each having a continuous perimeter corresponding to the perimeter of the substrate.

7. The glazing unit as claimed in claim 3 , wherein each seal in the state mounted on the substrate is secured thereto by its elastic association, and has a first linear wing pressed against one of the external faces of the glazing unit and a second linear wing tight against the peripheral edge face of the substrate.

8. The glazing unit as claimed in claim 3 , wherein the portions of the seals facing the edge face of the substrate overlap by at least 10 mm.

9. The glazing unit as claimed in claim 3 , wherein each seal has, on its portion cooperating with that of the other seal, continuous overthicknesses or ribs.

10. The glazing unit as claimed in claim 3 , wherein the seals are glued together in the zone of overlap.

11. The glazing unit as claimed in claim 3 , wherein the seals have lips which are pressed against the external faces of the substrate.

12. The glazing unit as claimed in claim 11 , wherein the glazing unit is incorporable into a frame and wherein the seals include other lips arranged in an opposite plane and which are co-operable with an internal surface of the frame.

13. The glazing unit as claimed in claim 3 , wherein the seals are made of a flexible material and able to be extruded and injection molded.

14. The glazing unit as claimed in claim 13 , wherein the seals are made of ethylene propylene diene monomer (EPDM) or silicone.

15. A method for manufacturing a glazing unit as claimed in claim 3 , comprising separately manufacturing the seals and adding the seals against the substrate.

16. The method for manufacturing a glazing unit as claimed in claim 15 , wherein manufacturing a seal comprises extruding linear parts and manufacturing corner parts and securing the corner parts to the linear parts by molding.

17. The method for manufacturing a glazing unit as claimed in claim 16 , wherein the corner parts are secured to the linear parts by injection molding.

18. The glazing unit as claimed in claim 3 , wherein the substrate includes a plurality of glass sheets.

19. The glazing unit as claimed in claim 3 , wherein each of the two seals is elastically deformable and is in a deformed state on said substrate so that each of the two seals presses against the peripheral edge face of the substrate.

20. The glazing unit as claimed in claim 3 , wherein the length of the zone of overlap is less than the thickness of the substrate.

Assignees

• Saint Gobain

Inventors

• Duffour Adrien

Classifications

• E06B3/5878 Primary

  the borders being pre-assembled in a frame-like manner on the pane or on the frame before the pane is fitted to the frame (E06B3/645 takes precedence) · CPC title

• B60J10/70

  specially adapted for windows or windscreens · CPC title

• E06B3/54 Primary

  Fixing of glass panes or like plates · CPC title

• B60J1/007

  received in frames to be attached to vehicle · CPC title