GB2377470A - Glazing bar with thermal break and security bead - Google Patents
Glazing bar with thermal break and security bead Download PDFInfo
- Publication number
- GB2377470A GB2377470A GB0216159A GB0216159A GB2377470A GB 2377470 A GB2377470 A GB 2377470A GB 0216159 A GB0216159 A GB 0216159A GB 0216159 A GB0216159 A GB 0216159A GB 2377470 A GB2377470 A GB 2377470A
- Authority
- GB
- United Kingdom
- Prior art keywords
- glazing
- leg
- web
- bead
- rebate
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- E—FIXED CONSTRUCTIONS
- E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
- E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
- E06B3/00—Window sashes, door leaves, or like elements for closing wall or like openings; Layout of fixed or moving closures, e.g. windows in wall or like openings; Features of rigidly-mounted outer frames relating to the mounting of wing frames
- E06B3/04—Wing frames not characterised by the manner of movement
- E06B3/263—Frames with special provision for insulation
- E06B3/26301—Frames with special provision for insulation with prefabricated insulating strips between two metal section members
- E06B3/26303—Frames with special provision for insulation with prefabricated insulating strips between two metal section members with thin strips, e.g. defining a hollow space between the metal section members
-
- E—FIXED CONSTRUCTIONS
- E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
- E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
- E06B3/00—Window sashes, door leaves, or like elements for closing wall or like openings; Layout of fixed or moving closures, e.g. windows in wall or like openings; Features of rigidly-mounted outer frames relating to the mounting of wing frames
- E06B3/54—Fixing of glass panes or like plates
- E06B3/58—Fixing of glass panes or like plates by means of borders, cleats, or the like
-
- E—FIXED CONSTRUCTIONS
- E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
- E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
- E06B3/00—Window sashes, door leaves, or like elements for closing wall or like openings; Layout of fixed or moving closures, e.g. windows in wall or like openings; Features of rigidly-mounted outer frames relating to the mounting of wing frames
- E06B3/04—Wing frames not characterised by the manner of movement
- E06B3/263—Frames with special provision for insulation
- E06B2003/26349—Details of insulating strips
- E06B2003/26387—Performing extra functions
-
- E—FIXED CONSTRUCTIONS
- E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
- E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
- E06B3/00—Window sashes, door leaves, or like elements for closing wall or like openings; Layout of fixed or moving closures, e.g. windows in wall or like openings; Features of rigidly-mounted outer frames relating to the mounting of wing frames
- E06B3/54—Fixing of glass panes or like plates
- E06B3/58—Fixing of glass panes or like plates by means of borders, cleats, or the like
- E06B3/5807—Fixing of glass panes or like plates by means of borders, cleats, or the like not adjustable
- E06B3/5821—Fixing of glass panes or like plates by means of borders, cleats, or the like not adjustable hooked on or in the frame member, fixed by clips or otherwise elastically fixed
-
- E—FIXED CONSTRUCTIONS
- E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
- E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
- E06B5/00—Doors, windows, or like closures for special purposes; Border constructions therefor
- E06B5/10—Doors, windows, or like closures for special purposes; Border constructions therefor for protection against air-raid or other war-like action; for other protective purposes
- E06B5/11—Doors, windows, or like closures for special purposes; Border constructions therefor for protection against air-raid or other war-like action; for other protective purposes against burglary
- E06B5/116—Arrangements preventing the removal of glazing panels
Abstract
A glazing bar for the manufacture of glazed window and door units comprises outer and inner alloy sections 1, 2 connected by a web of thermally insulating material 3, 4, together forming a glazing rebate. Engaged within the rebate is a bead, characterised by an integrally formed and angled leg 6, which extends from a retaining formations the outer section 1 towards the inner section 2 to where the end is received in a groove 5 formed on the upper surface of the thermal insulating material. The leg is of sufficient length that when deflected by a force applied to a lever, the leg is further forced into engagement within the groove 5. The invention may have more than one extruded polyamide insulating connecting web, whilst the groove in the web may also have an upward inclination allowing the leg to place the web into compression when a force is applied making it difficult to remove the bead from the rebate.
Description
<Desc/Clms Page number 1>
Window Units
This invention relates to thermally broken light alloy glazing bars suitable for use in the manufacture of fixed and opening lights and more particularly to the type of window units (herein referred to as the"PB System") as described in GB 2292170B.
The PB System is characterised by a special form of glazing bead provided with substantially horizontal leg, which is retained by the bar at the inner and outer edges of the leg, and having a bend formed in the leg. As used in this specification the word"bend"means only that part of the leg is relatively inclined with respect to another part of the leg and that this shape may be produced otherwise than by an act of bending and in fact the shape normally would be produced by extrusion. The shape and orientation of the bend is such that if an attempt is made to prise the bead from its mounting, the applied force has the result of driving the opposed edges of the leg into urged engagement with the leg retaining means. Accordingly, the PB System provides a window unit in relation to which it is very difficult or impossible to remove the external glazing beads by means of the small hand tools conventionally used by petty criminals for such purposes.
Although the PB System provides improved security benefits compared with prior window systems higher thermal insulation standards for window units require an increase in the width of the insulating bridge between the inner and outer alloy sections of the glazing bar.
Although the need for improved insulation applies to all types of thermally broken glazing bars there is a particular problem implementing improvements with PB system type bars.
<Desc/Clms Page number 2>
One way to improve thermal efficiency is to simply provide the bar with a wider insulating bridge fabricated using cast polyurethane or by means of wider extruded polyamide webs. However this results in a correspondingly wider window unit, which is undesirable. Another way to accommodate wider insulation elements is to reduce the width of the alloy sections by an amount sufficient to compensate for the increased length of the insulating bridge, so as to retain the original overall depth of the window unit. In the case of a PB system type glazing bar, however, reducing the width of the outer alloy section and glazing bead adversely affects the security of the system and is therefore not acceptable and the width of the rear section alone cannot be reduced sufficiently.
We have now established that a thermally broken alloy glazing bar can be produced with improved thermal insulation having the further advantage of having a significantly lower alloy mass per unit length in comparison with the known PB System glazing bar, and without compromising the security of the glazing unit. That is to say, it is now possible, in accordance with this invention, to reduce manufacturing costs while substantially retaining all of the security advantages of the PB System.
The term"alloy mass per unit length" as used herein refers to the mass of aluminium alloy per unit length of bar, in order to distinguish that characteristic, which is the main indicator of the cost of production, from the total mass per unit length, which would include the mass of thermal break material present in thermally broken glazing bars which are now specified for most building applications in preference to non-thermally broken bars.
<Desc/Clms Page number 3>
From mechanical considerations of a light alloy glazing beat subjected to forces intended to prise it from an installed window unit we have concluded that the ability of the PB system to resist attach is mainly dependent, at any particular wall thickness, on the lengtl of the said horizontal leg of the bead which extends from the outer towards the inner alloy section.
Generally speaking, in the case of a thermally broken window frame, the narrowing of the depth of the glazing bar relative to the leg length of the glazing bead means that the inner edge of the leg will extend into the region of the insulating bridge, which connects the inner and outer alloy sections of the glazing bar.
Accordingly, the innermost edge portion of the leg cannot bE retained by a retaining formation provided on the outer alloy section, as in the known system, since the free end of the leg extends beyond the outer alloy setion and projects above the insulating web.
This invention consists in a glazing bar for a fixed or opening light having an alloy outer section and an alloy inner section connected together by a web of thermally insulating material to form a glazing rebate, a glazing bead being engageable within the glazing rebate, the bead having a leg extending from the outer alloy section towards the inner alloy section the opposed inner and outer edge portions of the leg being retained between retaining formations in the glazing rebate, the inner retaining formation being disposed on the thermally insulating web, the leg being formed with a bend and being of sufficient length such that a force applied to lever the bead from the glazing rebate on the outer side causes the leg to deflect in such a way as to cause the inner and outer edges of the leg to be urged further into engagement with their respective retaining
<Desc/Clms Page number 4>
formations and thereby to resist the forced removal of the bead from the rebate.
Preferably the inner retaining formation is formed integrally with an insulating web by extrusion and is adapted to resist deflection by the applied force transmitted to it by the inner edge portion of the leg.
Preferably the inner retaining formation is located intermediate the opposed end portions of the upper web to lie, in use, beneath the bottom edge of a sealed double glazing panel.
The interengagement of the the leg and the retaining means is desirably such that when a force is applied to the bead the inner edge of the leg subjects the web member to a compressive force.
To facilitate compression of the web member under the influence of such an applied force, preferably the inner edge portion of the leg is turned down at a small angle to enter the inner retaining formation in the form of a groove provided in the upper portion of the web, the groove being inclined upwardly to receive the downwardly inclined edge of the leg, the arrangement being such that a force applied to remove the bead would put the web member into compression to resist attack.
The insulating web is preferably in the form of a polyamide extrusion.
A new and useful glazing frame fabricated from such glazing bars to provide, compared with the known PB System, a relatively lightweight,
<Desc/Clms Page number 5>
high insulating more economic glazing frame of slim profile having relatively lower alloy mass per unit length of frame.
Important benefits arising from this invention are that secure window units can be produced at lower cost due to a lower alloy weight per unit length, which can be achieved without compromising the security of the system and makes possible the production a slimmer window unit than would otherwise be the case.
An embodiment of the invention will now be described in further detail by way of example only with reference to Figure 1 of the accompanying drawings.
Figure 1 is a cross section of a glazing bar and associated bead.
Figure 2 is cross section representing a PB System bar (and therefore not in accordance with this invention) but having, for the purposes of comparison only, a thermally insulating bridge formed by two 30 mm wide extruded polyamide webs which is required to meet current insulation requirements. It should be noted that the conventional PB system glazing bar has a 12 mm deep insulating bridge.
Referring to Figure 1 a thermally broken alloy glazing bar has an outer aluminium section 1, and an inner aluminium section 2 connected together by upper and lower extruded polyamide webs 3, and 4 respectively. The insulation polyamide webs of this embodiment are 30 mm in width and offer improved thermal insulation compared with standard insulation bridge width of 12 mm. The upper web 3 is formed with a slightly upwardly and outwardly facing groove 5, which receives the downwardly turning edge of the inwardly extending leg 6 of glazing bead 7.
<Desc/Clms Page number 6>
A window unit constructed with the glazing bar shown in Figure 1 resists attack as well as the PB System bar (Figure 2), constructed generally in accordance with GB 2292170, but illustrated here with improved 30 mm thermal insulating webs, notwithstanding an overall reduction in depth to 66.5 mm from 77 mm, resulting in cost and weight savings. The improvement is achieved by keeping the length of the leg at least the same as in the corresponding conventional PB System bar while reducing the depth of the alloy sections.
The way in which a window unit in accordance with the present invention resists attack is described above and in GB2292170 and will not be described in further detail here.
It will be appreciated that the term"window units"as used herein includes fixed and opening lights generally, including lights formed in glazed doors and panels other than glazing panels may be substituted as required.
Important benefits arising from this invention are that secure window units can be produced at lower cost due to a lower alloy weight per unit length, which can be achieved without compromising the security of the system and makes possible the production a slimmer window unit than would otherwise be the case.
Claims (8)
- Claims 1. A glazing bar for a fixed or opening light having an alloy outer section and an alloy inner section connected together by a web of thermally insulating material to form a glazing rebate, a glazing bead being engageable within the glazing rebate, the bead having a leg extending from the outer alloy section towards the inner alloy section the opposed inner and outer edge portions of the leg being retained between retaining formations in the glazing rebate, the inner retaining formation being disposed on the thermally insulating web, the leg being formed with a bend and being of sufficient length such that a force applied to lever the bead from the glazing rebate on the outer side causes the leg to deflect in such a way as to cause the inner and outer edges of the leg to be urged further into engagement with their respective retaining formations and thereby to resist the forced removal of the bead from the rebate.
- 2. A glazing bar as claimed in Claim 1 in which the inner retaining formation is formed integrally with an insulating web by extrusion and is adapted to resist deflection by the applied force transmitted to it by the inner edge portion of the leg.
- 3. A glazing bar as claimed in Claim 1 or 2 in which the inner retaining formation is located intermediate the opposed end portions of the upper web to lie in use beneath the bottom edge of a sealed double glazing panel.
- 4. A glazing bar as claimed in Claim 3 in which the inter-engagement of the leg and the retaining means is such that when a force is<Desc/Clms Page number 8>applied to the bead the inner edge of the leg subjects the web member to a compressive force.
- 5. A glazing bar as claimed in Claims 4 in which the inner edge portion of the leg is turned down at a small angle to enter the inner retaining formation in the form of a groove provided in the upper portion of the web, the groove being inclined upwardly to receive the downwardly inclined edge of the leg, the arrangement being such that a force applied to remove the bead would put the web member into compression to resist attack.
- 6. A glazing bar as claimed in any preceding Claim in which the insulating web is a polyamide extrusion.
- 7. A glazing frame fabricated from glazing bars as claimed in any preceding claim to provide a relatively lightweight, high insulating glazing frame of slim profile having relatively lower alloy mass per unit length of frame.
- 8. A glazing frame substantially as described with reference to Figure 1.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB0117104A GB0117104D0 (en) | 2001-07-13 | 2001-07-13 | Window units |
Publications (3)
Publication Number | Publication Date |
---|---|
GB0216159D0 GB0216159D0 (en) | 2002-08-21 |
GB2377470A true GB2377470A (en) | 2003-01-15 |
GB2377470B GB2377470B (en) | 2006-02-15 |
Family
ID=9918431
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB0117104A Ceased GB0117104D0 (en) | 2001-07-13 | 2001-07-13 | Window units |
GB0216159A Expired - Lifetime GB2377470B (en) | 2001-07-13 | 2002-07-12 | Window units |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB0117104A Ceased GB0117104D0 (en) | 2001-07-13 | 2001-07-13 | Window units |
Country Status (2)
Country | Link |
---|---|
GB (2) | GB0117104D0 (en) |
WO (1) | WO2003006773A1 (en) |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2007103367A2 (en) * | 2006-03-06 | 2007-09-13 | Masonite Corporation | Door with glass insert and method for assembling the same |
GB2480114A (en) * | 2010-05-04 | 2011-11-09 | Metflam Ltd | Glazing bracket |
FR2986554A1 (en) * | 2012-02-02 | 2013-08-09 | Scer Rotation Ii | Joinery system for range of e.g. door, has vertical upright including metal sections of frontage and heat shield forming with profiled frontage in thermal protection chamber, where profiled frontage is made of aluminum |
EP2666948A1 (en) * | 2012-05-21 | 2013-11-27 | Hörmann KG Brockhagen | Frame assembly for a panel for sectional doors |
GB2510845A (en) * | 2013-02-14 | 2014-08-20 | Sapa Building Systems Ltd | Improved Composite Profile for a Door or Window Frame |
US9290989B2 (en) | 2006-03-06 | 2016-03-22 | Masonite Corporation | Door with glass insert and method for assembling the same |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103953150B (en) * | 2014-05-13 | 2016-06-22 | 佛山市锦绣明天建材有限公司 | Combined decoration section bar |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2292170A (en) * | 1994-07-08 | 1996-02-14 | P B Systems Ltd | Glazing bead |
GB2293399A (en) * | 1994-08-12 | 1996-03-27 | P B Systems Ltd | Extension device for an extruded window frame |
GB2371076A (en) * | 2001-01-16 | 2002-07-17 | Sapa Building Systems Ltd | Insulated frame members |
GB2371074A (en) * | 2001-01-09 | 2002-07-17 | Sapa Building Systems Ltd | Glazing frame |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CA1262077A (en) * | 1985-04-10 | 1989-10-03 | Labra-Door Ltd. | Outwardly opening hinged window assembly |
FR2767553B1 (en) * | 1997-08-19 | 1999-10-22 | Alcan France | IMPROVEMENT PROVIDED FOR A FRAME OF A FRAMING DOOR OR WINDOW |
-
2001
- 2001-07-13 GB GB0117104A patent/GB0117104D0/en not_active Ceased
-
2002
- 2002-07-12 GB GB0216159A patent/GB2377470B/en not_active Expired - Lifetime
- 2002-07-12 WO PCT/GB2002/003191 patent/WO2003006773A1/en active Application Filing
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2292170A (en) * | 1994-07-08 | 1996-02-14 | P B Systems Ltd | Glazing bead |
GB2293399A (en) * | 1994-08-12 | 1996-03-27 | P B Systems Ltd | Extension device for an extruded window frame |
GB2371074A (en) * | 2001-01-09 | 2002-07-17 | Sapa Building Systems Ltd | Glazing frame |
GB2371076A (en) * | 2001-01-16 | 2002-07-17 | Sapa Building Systems Ltd | Insulated frame members |
Cited By (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2007103367A2 (en) * | 2006-03-06 | 2007-09-13 | Masonite Corporation | Door with glass insert and method for assembling the same |
WO2007103367A3 (en) * | 2006-03-06 | 2007-11-01 | Masonite Corp | Door with glass insert and method for assembling the same |
US7721501B2 (en) | 2006-03-06 | 2010-05-25 | Masonite Corporation | Door with glass insert and method for assembling the same |
US9290989B2 (en) | 2006-03-06 | 2016-03-22 | Masonite Corporation | Door with glass insert and method for assembling the same |
GB2480114A (en) * | 2010-05-04 | 2011-11-09 | Metflam Ltd | Glazing bracket |
GB2480114B (en) * | 2010-05-04 | 2016-06-01 | Metflam Ltd | Fire retardant device |
FR2986554A1 (en) * | 2012-02-02 | 2013-08-09 | Scer Rotation Ii | Joinery system for range of e.g. door, has vertical upright including metal sections of frontage and heat shield forming with profiled frontage in thermal protection chamber, where profiled frontage is made of aluminum |
EP2666948A1 (en) * | 2012-05-21 | 2013-11-27 | Hörmann KG Brockhagen | Frame assembly for a panel for sectional doors |
GB2510845A (en) * | 2013-02-14 | 2014-08-20 | Sapa Building Systems Ltd | Improved Composite Profile for a Door or Window Frame |
GB2510845B (en) * | 2013-02-14 | 2015-01-07 | Sapa Building Systems Ltd | Composite profile for a door or window frame |
Also Published As
Publication number | Publication date |
---|---|
GB0117104D0 (en) | 2001-09-05 |
GB2377470B (en) | 2006-02-15 |
GB0216159D0 (en) | 2002-08-21 |
WO2003006773A1 (en) | 2003-01-23 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US7555871B1 (en) | Window framing system for sliding windows | |
US6722089B2 (en) | Concealed structural mullion | |
CN101076650B (en) | Safety screen | |
CA2267266A1 (en) | Venetian blind-window arrangement | |
GB2373002A (en) | System for attaching elements to curtain walling | |
CN106460444A (en) | Composite profile for doors, windows or facade elements | |
US4430836A (en) | Frame assembly for door light | |
EP1705334A2 (en) | Window or door jamb | |
GB2377470A (en) | Glazing bar with thermal break and security bead | |
US6412240B1 (en) | High performance flashing assembly | |
US20050138889A1 (en) | Curtain wall system with enhanced resistance to blast forces | |
KR102126906B1 (en) | Window structure with improved insulation and workability | |
JPH1136726A (en) | Fitting structure for window body in window frame | |
CN210858398U (en) | Connecting structure of door and window and curtain wall | |
CN210195569U (en) | Fireproof connecting structure for aluminum alloy section window | |
CN210178218U (en) | Aluminum alloy section bar swinging-out casement window conversion frame fire prevention connection structure | |
KR102236954B1 (en) | Connection structure frame and glass of curtain wall | |
JPH11280339A (en) | Upper frame construction for insulating sash | |
KR20210152374A (en) | Insulating frame for windows and doors | |
GB2254873A (en) | Two part mullion for coupling window frames | |
JP3137602B2 (en) | Window sash | |
CN109184041A (en) | A kind of heat insulation type partitioning system | |
CN109184040A (en) | Heat-insulating type partitioning system | |
GB2296020A (en) | Blast-resistant mounting for, e.g. a window | |
CN213478090U (en) | Club's connecting piece in door and window and connection structure thereof |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PE20 | Patent expired after termination of 20 years |
Expiry date: 20220711 |