Pivot roof window with sash comprising vacuum insulated glass unit overlapping bottom frame profile

Patent metadata

Field	Value
Publication number	US-11767704-B2
Application number	US-202017422863-A
Country	US
Kind code	B2
Filing date	Jan 13, 2020
Priority date	Jan 14, 2019
Publication date	Sep 26, 2023
Grant date	Sep 26, 2023

Abstract

The present disclosure relates to a roof window ( 1 ) with a vacuum insulated glass unit ( 3 ). The roof window ( 1 ) comprises a VIG unit ( 3 ) and a frame arrangement ( 2 ). The frame arrangement 2 comprises a fixation frame ( 7 ) and a sash ( 6 ) fixed to the a VIG unit ( 3 ), and the sash ( 6 ) is movably connected to the fixation frame ( 7 ) by means of a hinge connection ( 80 ) so that a top end part ( 16 a ) of the sash ( 6 ) is configured to move inwards and a bottom end part ( 16 b ) of the sash is configured to move outwards when opening the sash ( 6 ) from a closed position. The bottom end part ( 16 b ) of the sash ( 6 ) comprises an elongated, structural bottom member ( 6 c ) having an inner surface ( 41 ) facing towards the top end part ( 16 a ) of the sash, and an opposite exterior surface ( 42 ) facing away from the top end part ( 16 a ). The VIG unit ( 3 ) comprises an overlapping part ( 9 b ) where the evacuated gap ( 4 ) overlaps the elongated, structural bottom member ( 6 c ) of the sash ( 6 ). The overlapping part ( 9 b ) of the VIG unit moreover overlaps at least a part of an elongated bottom frame member ( 7 c ) of the fixation frame 7.

First claim

The invention claimed is:

1. A roof window with a vacuum insulated glass unit,
wherein the window comprises:
a vacuum insulated glass unit comprising a first glass sheet and a second glass sheet, wherein an evacuated gap is placed between the first and second glass sheets, wherein a plurality of support structures are distributed in the evacuated gap, and wherein an edge seal encloses the evacuated gap,
a frame arrangement comprising a fixation frame and a sash fixed to a vacuum insulated glass unit, and wherein the sash is movably connected to the fixation frame by means of a hinge connection so that a top end part of the sash is configured to move inwards and a bottom end part of the sash is configured to move outwards when opening the sash from a closed position,

wherein the bottom end part of the sash comprises an elongated, structural bottom member having an inner surface facing towards the top end part of the sash, and an opposite exterior surface facing away from the top end part,
wherein the vacuum insulated glass unit comprises an overlapping part, where the evacuated gap overlaps the elongated, structural bottom member of the sash, and wherein said overlapping part of the vacuum insulated glass unit moreover overlaps at least a part of an elongated bottom frame member of the fixation frame.

2. A roof window according to claim 1 , wherein the vacuum insulated glass unit comprises a part extending beyond an outermost edge of said elongated structural bottom member of the sash which faces away from the top end part of the sash, and wherein said part of the vacuum insulated glass unit extending beyond the outer edge moreover overlaps at least a part of the elongated bottom frame member when the sash is in the closed position.

3. A roof window according to claim 2 , wherein the vacuum insulated glass unit comprises a sealed evacuation opening and/or a getter inside the evacuated gap which is/are placed at the overlapping part of vacuum insulated glass unit which extends beyond the outermost edge of said elongated structural bottom member of the sash and overlaps at least a part of the elongated bottom frame member.

4. A roof window according to claim 1 , wherein the elongated bottom frame member comprises a surface facing a frame opening defined by the fixation frame, and an opposite, exterior surface facing away from the frame opening, and wherein the surface facing the frame opening is arranged to face and be opposite to the exterior surface of the structural bottom member of the sash when the sash is in the closed position.

5. A roof window according to claim 1 , wherein the vacuum insulated glass unit comprises a sealed evacuation opening and/or a getter arrangement inside the evacuated gap which is/are placed at the overlapping part of vacuum insulated glass unit that overlaps the structural bottom member of the sash.

6. A roof window according to claim 1 , wherein the evacuated gap has a width which is below 0.5 mm.

7. A roof window according to claim 1 , wherein a distance from the bottom edge surface of the vacuum insulated glass unit and to a line of sight through the vacuum insulated glass unit is between 25 mm and 200 mm, wherein the distance is determined parallel to an outer major surface of the vacuum insulated glass unit, in a direction perpendicular to a longitudinal extent of the bottom edge surface.

8. A roof window according to claim 1 , wherein a cladding wall is connected to the vacuum insulated glass unit and is configured to extend over a part of an exterior surface of the bottom frame member facing away from a frame opening when the sash is in the closed position.

9. A roof window according to claim 1 , wherein an overlapping cover, such as a hiding cover plate, is fixed to the vacuum insulated glass unit and/or the sash, and is arranged to cover and hide at least the overlapping part of the vacuum insulated glass unit which overlaps the elongated bottom frame member.

10. A roof window according to claim 1 , wherein a masking is provided to mask the overlapping part of the vacuum insulated glass unit which overlaps the structural bottom member of the sash and/or the overlapping part that overlaps the elongated bottom frame member of the fixation frame.

11. A roof window according to claim 10 , wherein the masking is a sheet, plate or coating.

12. A roof window according to claim 1 , wherein a top end part of the frame arrangement comprises a top cladding device configured to extend from the fixation frame and over the top end part of the sash, at least when the sash is in the closed position.

13. A roof window according to claim 1 , wherein the top end part of the sash comprises an elongated, structural top member having an inner surface facing towards the bottom end part of the sash, and an opposite outer surface facing away from the bottom end part, wherein the vacuum insulated glass unit comprises an overlapping part which overlaps the structural top member of the sash.

14. A roof window according to claim 1 , wherein upper and lower elongated water cover members are configured to cover elongated side sash members and elongated side members of the fixation frame, wherein the upper elongated water cover members are stationary and fixed to the fixation frame, and wherein the lower elongated water cover members are fixed to the sash or the vacuum insulated glass unit and thereby configured to move together with the sash.

15. A roof window according to claim 1 , wherein the vacuum insulated glass unit comprises a tempered glass sheet providing the first or second glass sheet of the vacuum insulated glass unit, and wherein the vacuum insulated glass unit is a laminated vacuum insulated glass unit comprising a lamination glass sheet configured to face an interior of a building.

16. A roof window according to claim 1 , wherein an exterior surface of the vacuum insulated glass unit comprises an exposed, visible surface area which is larger than a visible, exposed surface area of an interior major surface of the vacuum insulated glass unit when the sash is in the closed position.

17. A roof window according to claim 1 , wherein the vacuum insulated glass unit is attached to the elongated bottom sash member by means of a bonding seal attached to an interior major surface of the vacuum insulated glass unit.

18. A roof window ( 1 ) according to claim 17 , wherein said bonding seal has a thickness above 4 mm, at a temperature difference between the two glass sheets of the vacuum insulated glass unit of substantially 0° C.

19. A roof window according to claim 1 wherein the hinge connection comprises a centre hinge connection.

20. A roof window according to claim 1 , wherein a minimum distance between an outer major surface of the vacuum insulated glass unit and surfaces of elongated members of the sash facing the outer major surface, is at least 4 mm at a temperature difference between the two glass sheets of the vacuum insulated glass unit of substantially 0° C.

Assignees

• Vkr Holding As

Inventors

• Özden Utku Ahmet
• Molbo Jacob Christian
• Kristensen Jens Troels Plesner

Classifications

• E06B3/62 Primary

  of rubber-like elastic cleats · CPC title

• E04D13/03

  Sky-lights; Domes; Ventilating sky-lights (E04D13/14 takes precedence; structures therefor, {e.g. dormer windows} E04B7/18; {saw-tooth roofs with light-transmission E04B7/12}) · CPC title

• E04D13/031

  characterised by a frame for connection to an inclined roof · CPC title

• E04D13/035

  characterised by having movable parts {(preventing the spread of fire A62C3/00; roof structures with movable roof parts E04B7/16; operating mechanisms for sky-lights E05F11/00; automatically acting closers E05F17/00)} · CPC title

• E04D13/0315

  characterised by a curb frame · CPC title