GB2300212A - Window frame reinforcement section - Google Patents

Window frame reinforcement section Download PDF

Info

Publication number
GB2300212A
GB2300212A GB9508447A GB9508447A GB2300212A GB 2300212 A GB2300212 A GB 2300212A GB 9508447 A GB9508447 A GB 9508447A GB 9508447 A GB9508447 A GB 9508447A GB 2300212 A GB2300212 A GB 2300212A
Authority
GB
United Kingdom
Prior art keywords
reinforcement
section
window frame
box
edges
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
Application number
GB9508447A
Other versions
GB2300212B (en
GB9508447D0 (en
Inventor
Mark David Russell
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Equator Wheels & Sections Ltd
EWS
Original Assignee
Equator Wheels & Sections Ltd
EWS
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Equator Wheels & Sections Ltd, EWS filed Critical Equator Wheels & Sections Ltd
Priority to GB9508447A priority Critical patent/GB2300212B/en
Publication of GB9508447D0 publication Critical patent/GB9508447D0/en
Publication of GB2300212A publication Critical patent/GB2300212A/en
Application granted granted Critical
Publication of GB2300212B publication Critical patent/GB2300212B/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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
    • E06B3/06—Single frames
    • E06B3/08—Constructions depending on the use of specified materials
    • E06B3/20—Constructions depending on the use of specified materials of plastics
    • E06B3/22—Hollow frames
    • E06B3/221—Hollow frames with the frame member having local reinforcements in some parts of its cross-section or with a filled cavity
    • E06B3/222—Hollow frames with the frame member having local reinforcements in some parts of its cross-section or with a filled cavity with internal prefabricated reinforcing section members inserted after manufacturing of the hollow frame

Landscapes

  • Engineering & Computer Science (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)

Abstract

A reinforcement section for incorporation into a hollow interior of an extruded plastics window frame member is formed from a steel strip having parallel side edges. These are rolled into a box-section and the side edges are interlocked to prevent side-edge spring and to give the reinforcement, and the associated frame member, greater torsional rigidity.

Description

REINFORCEMENT SECTIONS The invention relates to reinforcement sections for plastics windows.
A window may have both the fixed and movable frames formed from frame members of a plastics material. The members can be extruded and in this case the members will have a hollow interior, often of rectangular cross-section. Such members are not particularly resistant either to longitudinal bending or to torsional stress and so it has been customary to introduce a box-section steel reinforcement into the interior of such a member to increase the strength of the member.
A typical reinforcement is of box-section rolled from a steel strip with parallel side edges that are folded during the rolling process until the edges butt one another. It is a problem with such a conventional reinforcement section that, although the edges of the strip are supposed to butt together when the adjacent surfaces are co-planar, this does not always happen. Sometimes, one edge springs above the other edge. In addition, the reinforcement section, when formed, is not particularly torsionally rigid and this means that the associated member incorporating the reinforcement section is also not particularly torsionally rigid.
According to a first aspect of the invention, there is provided a window frame reinforcement of box-section formed from an elongate metal strip having parallel side edges, the side edges, in the box-section, interlocking with one another.
In this way, the ends are locked together so eliminating end spring problems and making the box torsionally more rigid.
According to a second aspect of the invention, there is provided a method of making a window reinforcement of boxsection from an elongate metal strip comprising rolling said metal strip into said box-section and interlocking said side edges during said forming process.
The following is a more detailed description of an embodiment of the invention, by way of example, reference being made to the accompanying drawing which is a cross-section of a window reinforcement section.
The reinforcement section is formed from a strip of metal such as steel. The strip is initially flat and has parallel side edges 10.
A rolling process forms the strip into a generally boxsection having opposed longer side walls 11 and opposed shorter side walls 12. The side edges 10 interlock with each other at one shorter side wall 12.
To form this interlock, the portions of the strip adjacent the two side edges 10 overlap one another at the shorter side wall 12. One portion forms the outer surface of the wall and continues beyond the end of the wall 12 to overlap the adjacent longer wall 11 which is inwardly indented to accommodate the edge 10. The other portion is folded back on itself for a distance almost equal to the length of the wall and is embraced by the other portion, so that inwardly at the outer surface of the wall there are three layers of the strip.
This provides a firm interlock between the edges of the strip.
This means that there is no tendency for the edges of the strip to move relative to one another and it also allows torsional and other stresses to be transmitted across the join between the edges. This makes the box-section torsionally more rigid than it would be in the absence of the interlock.
It will be appreciated that the drawing shows only one example of an interlock. There are many other interlocks that could be used. The interlock need not be at a shorter side edge; it could be intermediate a longer edge or at any other suitable position. Further, the shape of the section need not be as shown; the section could be any required shape.
In use, the reinforcement section is inserted into a hollow interior of an extruded plastics window frame member. The section is sized to be a tight fit in the interior and provides the member with increased strength, particularly in torsion. In addition, there is no tendency for the edges 10 of the strip to spring apart.

Claims (8)

1. A window frame reinforcement of box-section formed from an elongate metal strip having parallel side edges, the side edges in the box-section interlocking with each other.
2. A reinforcement according to claim 1 wherein the boxsection has opposed longer side walls and opposed shorter side walls, the edges interlocking at one of said shorter side walls.
3. A reinforcement according to claim 2 wherein a portion of the strip adjacent one side edge forms said shorter side wall and extends partially along an adjacent longer side wall and a portion of the strip adjacent the other side edge is folded back on itself and is embraced with said portion adjacent said one side edge.
4. A reinforcement substantially as hereinbefore described with reference to the accompanying drawing.
5. A plastics window frame member having a hollow interior accommodating a reinforcement according to any one of claims 1 to 4.
6. A method of manufacturing a window frame reinforcement comprising forming an elongate metal strip having side edges into a box section and interlocking said side edges during said forming.
7. A method according to claim 5 wherein said box-section is formed by rolling.
8. A method of forming a window frame reinforcement substantially as hereinbefore described with reference to the accompanying drawing.
GB9508447A 1995-04-26 1995-04-26 Reinforcement sections Expired - Fee Related GB2300212B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB9508447A GB2300212B (en) 1995-04-26 1995-04-26 Reinforcement sections

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB9508447A GB2300212B (en) 1995-04-26 1995-04-26 Reinforcement sections

Publications (3)

Publication Number Publication Date
GB9508447D0 GB9508447D0 (en) 1995-06-14
GB2300212A true GB2300212A (en) 1996-10-30
GB2300212B GB2300212B (en) 1998-08-05

Family

ID=10773533

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9508447A Expired - Fee Related GB2300212B (en) 1995-04-26 1995-04-26 Reinforcement sections

Country Status (1)

Country Link
GB (1) GB2300212B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19809691A1 (en) * 1998-03-06 1999-09-09 Niemann Folded cover strip of a door or window frame

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0092078A2 (en) * 1982-04-16 1983-10-26 Gebhardt, Manfred Arrangement for clamping the edges of glass panes, in particular at the construction of greenhouses
GB2196367A (en) * 1986-09-02 1988-04-27 Bowater Ind Public Limited Com Improvements in extrusion profiles
EP0585531A1 (en) * 1992-08-18 1994-03-09 Carl Fuhr GmbH & Co. Doors, windows or the like composed of hollow reinforced plastic section members

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0092078A2 (en) * 1982-04-16 1983-10-26 Gebhardt, Manfred Arrangement for clamping the edges of glass panes, in particular at the construction of greenhouses
GB2196367A (en) * 1986-09-02 1988-04-27 Bowater Ind Public Limited Com Improvements in extrusion profiles
EP0585531A1 (en) * 1992-08-18 1994-03-09 Carl Fuhr GmbH & Co. Doors, windows or the like composed of hollow reinforced plastic section members

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19809691A1 (en) * 1998-03-06 1999-09-09 Niemann Folded cover strip of a door or window frame

Also Published As

Publication number Publication date
GB2300212B (en) 1998-08-05
GB9508447D0 (en) 1995-06-14

Similar Documents

Publication Publication Date Title
US4069638A (en) Structure of lightweight bars and connector means therefore
EP3153357B1 (en) Vehicle body component
EP0153758A2 (en) Compound bar, in particular for window frames, door frames and roller shutters
GB1600309A (en) Prefabricated wall element
US5743588A (en) Metallic section as reinforcement of a motor vehicle door
DE10013527A1 (en) Steel transverse bumper (fender) cross-bearer making process involves joining narrow strips into bonded element and deforming it by roll deforming process
US20060017305A1 (en) Low-profile high-strength vehicle door beam
US6681833B2 (en) Screen frame having corners under compression
CA1124577A (en) Dunnage bar and method of making it
DE3006056C2 (en) Hollow profile for a ceiling link or roller door
EP0951116B1 (en) Frame member for an electrical cabinet frame
CA2528180C (en) Integral transverse flanges for a duct connecting system
GB2300212A (en) Window frame reinforcement section
GB2102465A (en) Rolled metal beam
DE19839268B4 (en) Bevelled edge connection
EP2404095B1 (en) Flange profile for connecting an air duct in an air-tight manner
ES2077447T3 (en) DRIVE CONNECTING ROD FOR WINDOW AND DOOR FITTINGS, ESPECIALLY DRIVE CONNECTING COUPLING PART FOR FITTING COMPONENTS, AS WELL AS FITTING COMPONENT EQUIPPED WITH A DRIVING CONNECTION COUPLING PART OF THIS TYPE.
EP1829752A1 (en) Crash box
DE10044409B4 (en) Bumper reinforcement member
WO2013129181A1 (en) Belt line reinforcement
US5687785A (en) Venetian blind slat
DE102014106596A1 (en) Fastening means, in particular for bellows, with a male and a female end portion
US2596792A (en) Metal door
GB2032497A (en) Building Frames
DE10249601B3 (en) Bar-shaped bearer of band-shaped parts for e.g. shock absorbers for cars consists of parallel band parts connected at seams, fastened to flat top plate, and with outward curved center

Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee

Effective date: 20040426