GB2451893A - Frame member comprising an arm having a flange forming a recess for receiving sprue - Google Patents

Frame member comprising an arm having a flange forming a recess for receiving sprue Download PDF

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Publication number
GB2451893A
GB2451893A GB0716077A GB0716077A GB2451893A GB 2451893 A GB2451893 A GB 2451893A GB 0716077 A GB0716077 A GB 0716077A GB 0716077 A GB0716077 A GB 0716077A GB 2451893 A GB2451893 A GB 2451893A
Authority
GB
United Kingdom
Prior art keywords
frame member
frame
arm
flange
recess
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
GB0716077A
Other versions
GB0716077D0 (en
GB2451893B (en
Inventor
Ian Kernaghan
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.)
Eurocell Profiles Ltd
Original Assignee
Eurocell Profiles Ltd
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 Eurocell Profiles Ltd filed Critical Eurocell Profiles Ltd
Priority to GB0716077.3A priority Critical patent/GB2451893B/en
Publication of GB0716077D0 publication Critical patent/GB0716077D0/en
Publication of GB2451893A publication Critical patent/GB2451893A/en
Application granted granted Critical
Publication of GB2451893B publication Critical patent/GB2451893B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • 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
    • 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
    • E06B3/96—Corner joints or edge joints for windows, doors, or the like frames or wings
    • E06B3/9604—Welded or soldered joints
    • E06B3/9608—Mitre joints

Landscapes

  • Engineering & Computer Science (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Wing Frames And Configurations (AREA)
  • Securing Of Glass Panes Or The Like (AREA)

Abstract

A frame member for a window frame or doorframe is provided with a recess 1 for receiving sprue, the build up of excess material from a fusion welding process used to join frame members together. The frame member comprising a main body portion 11 and a receiving portion 12 for accommodating a glazing pane or a second frame member, the receiving portion comprising an arm 13 that extends from one end of the main body and that has an inwardly directed flange 14, wherein the flange is shaped and sized such that a sealing element, for forming a seal between the frame member and a glazing pane or second frame member accommodated in the receiving portion, may be provided on the inwardly directed flange, and wherein the flange and the arm are shaped and sized so as to define the sprue-receiving recess 1.

Description

FRAME MEMBERS
The present invention relates to window frame and doorframe members, such as frame members for a window outerframe, transom, mullion or window sash.
Existing window and door systems, such as PVCu window systems, use frames (including window outerframes, transoms, mullions and sashes) that are made up of one or more frame members of L-shaped, Z-shaped or T-shaped cross section. These L, Z and T shapes are commonly extruded in rigid PVCu. The rigid frames are provided with softer co-extruded gaskets that act to seal the window frame to the glazing pane or other frame secured therein, thus avoiding air and water ingress.
Examples of known window frame members are shown in Figures 1 and 2 of the accompanying drawings. The window frame members 1 are rigid PVCu and are of L-shaped, Z-shaped or T-shaped cross section.
The frame members 1 include a receiving portion 2 for accommodating glazing or another frame member, on which is co-extruded one or more gasket 3. The gasket 3 is a seal element that is co-extruded from a softer plastic material than the rigid PVCu used for the window frame member 1. The gasket 3 forms a seal, which seals from air and water ingress, between the window frame member 1 and the glazing pane 4 or other frame member 5 that is accommodated in the receiving portion 2.
On the receiving portion 2, behind the co-extruded gasket 3, there is also provided a "t" shaped gasket groove 6. This groove 6 is shaped so as to receive and securely hold a repair gasket 3a, which has a corresponding "t" shaped protrusion. Accordingly, should the co-extruded gasket 3 be damaged, e.g. in production or transit, the repair gasket 3a can be used to replace the gasket 3, being securely held in position on the receiving portion 2.
To produce a window system these frame members 1 are fusion welded together. The cut ends of each member 1 are placed against a Teflon coated hotplate to melt the end. The members 1 are then forced together to fusion weld the corners.
A downside of this process is that the fusion welding causes a build up of excess material (plastic) along the fusion line, known as sprue. This needs to be cut off, e.g. using a knife, to allow the window to operate and seal correctly. Failure to do this, particularly around the gasket area, means that the seal will not sit flush against the opposing face of the window or glass, causing the seal to be broken and thus allowing air or water to pass by the seal.
There is therefore a need for a frame member that can be secured to other frame members to produce a window or door system without the need to subsequently remove sprue in order for the window or door to operate and seal correctly.
The present invention provides, in a first aspect, a frame member for a window frame or doorframe, the frame member comprising a main body portion and a receiving portion for accommodating a glazing pane or a second frame member, the receiving portion comprising an arm that extends from one end of the main body and that has an inwardly directed flange, wherein the flange is shaped and sized such that a sealing element, for forming a seal between the frame member and a glazing pane or second frame member accommodated in the receiving portion, may be provided on the inwardly directed flange, and wherein the flange and the arm are shaped and sized so as to define a recess between the flange and the arm for receiving sprue.
The frame member of the present invention is advantageous in that when two frame members are welded together in the production of a window frame or doorframe, the excess material (sprue) flows or deforms into the recess and therefore does not form a build up along the fusion line in that area that needs to be removed to allow the frame to operate and seal correctly. In particular, sprue located in the recess will not adversely affect the seal between the frame member and the glazing pane or second frame member. The avoidance of the need to remove build up along the fusion line in the seal area saves production time and money and makes for a better seal both in the glazed and sealing area.
The recess may be any suitable shape and any suitable size. In one embodiment, the recess may be of part-circular section; for example the recess may be in the shape of a concave dish. In another embodiment, the recess is in the form of a step.
The recess may, in one embodiment, have a depth of up to 10mm, such as from 1 to 10mm, e.g. from 1.5 to 7.5mm; preferably the recess has a depth of up to 5mm, in particular from 2 to 5mm.
In a preferred embodiment, the receiving portion does not include a groove for receiving a replacement sealing element. In particular, the portion of the receiving portion on which the sealing element can be located may be substantially solid, rather than including any grooves, channels or indents. Preferably, the portion of the flange on which the sealing element can be located and any portion of the arm on which the sealing element can be located are substantially solid.
The receiving portion may comprise only a single arm that extends from one end of the main body and has an inwardly directed flange or may comprise more than one arm, e.g. two arms that each extend from one end of the main body and have an inwardly directed flange.
In one embodiment, the frame member is provided with a sealing element, for forming a seal between the frame member and a glazing pane or second frame member accommodated in the receiving portion, on the inwardly directed flange of the arm.
The sealing element provided on the inwardly directed flange may be located only on the flange. Preferably, however, the sealing element is provided such that it is located partially on the flange and partially on the arm.
When the receiving portion comprises more than one arm, only one, more than one, or all of the arms may have a sealing element, for forming a seal between the frame member and a glazing pane or second frame member accommodated in the receiving portion, provided on the inwardly directed flange of the arm. Preferably, all of the arms have a sealing element, for forming a seal between the frame member and a glazing pane or second frame member accommodated in the receiving portion, provided on the inwardly directed flange of the arm.
The sealing element is preferably made of material that is softer than the material of the main body. The sealing element may be made of plastics material, in particular thermoplastic material, such as PVC, in particular PVCu. Alternatively, the sealing element may be made of rubber.
The sealing element is preferably co extruded onto the receiving portion of the frame member.
The main body portion may be integral with the or each arm.
Alternatively, the main body portion may be separate from, but attached to, the or each arm.
The frame member is preferably hollow. In particular, the main body of the frame member may be hollow. The arm may alternatively or additionally be hollow.
The frame member is preferably of substantially L-shaped, Z-shaped or T-shaped cross section.
When the frame member is L-shaped it may comprise the main body portion and an arm at one end of the main body portion, extending from the body portion at one edge, to define an L. When the frame member is Z-shaped it may comprise the main body portion, a first arm at one end of the main body portion, extending from the body portion at one edge, and a second arm at the opposite end of the main body portion, extending at the opposite edge to the first arm, to define a Z. When the frame member is T-shaped it may comprise the main body portion, a first arm at one end of the main body portion, extending from the body portion at one edge, and a second arm at the Opposite end of the main body portion, extending at the same edge as the first arm, to define aT.
The inwardly directed flange extends inwardly from the arm at any suitable angle. Preferably, the inwardly directed flange extends inwardly from the arm at an angle of from 0 to 200 to the perpendicular. In particular, the inwardly directed flange may extend inwardly from the arm at substantially 90°.
Preferably, the main body and receiving portion of the frame member is made of thermoplastic material, more preferably PVC, in particular PVCu, such as rigid PVCu.
The present invention provides, in a second aspect, a window frame or doorframe comprising one or more frame members according to the first aspect.
The frame may in particular be a window outerframe, a transom, a mullion or a window sash.
In one embodiment, the window frame or doorframe comprises one or more, e.g. two or more, such as three or more, preferably four or more, frame members according to the first aspect, together with one or more glazing pane.
Preferably, the frame members are welded together to form a frame that receives the glazing pane.
When the frame members are welded together to form a frame, sprue may accumulate in the recess of each frame. Accordingly, in one embodiment, each frame member in accordance with the first aspect comprises sprue in its recess between the flange and the arm. Each recess may be partially or completely full of sprue.
Preferably, each of the frame members in accordance with the first aspect is provided with a sealing element for forming a seal between the frame member and a glazing pane or second frame member accommodated in the receiving portion, on the inwardly directed flange of the arm.
The present invention provides, in a third aspect, the use of a frame member according to the first aspect in the production of a window frame or doorframe by welding two or more frame members together, to alleviate the need to remove built up material along the fusion line.
The present invention provides, in a fourth aspect, the use of a frame member according to the first aspect in the production of a window frame or doorframe by welding two or more frame members together, to create a better seal both in the glazed and sealing area.
The present invention further provides, in a fifth aspect, a method of producing a window frame or door frame in accordance with the second aspect, the method comprising: (a) providing two or more frame members according to the first aspect; (b) welding together the frame members at their ends, wherein the sprue flows or deforms into the recess of each frame member and therefore does not form a build up along the fusion line that needs to be removed to allow the frame to operate and seal correctly.
In one embodiment, the method involves the step of providing sealing elements on the flange of each frame member. In particular, the method may involve co extruding sealing elements on the flange of each frame member.
Preferably, the frame members are welded together at their ends by fusion welding.
An embodiment of the present invention will now be described, by way of example only, with reference to the accompanying drawings in which:-Figures 1 and 2 show known window frame members, as previously described; Figure 3 is a cross section through a first window frame member in accordance with the present invention; and Figure 4 is a cross section through a second window frame member in accordance with the present invention.
Referring to Figures 3 and 4, window frame members 10 are shown which are hollow and of generally L-shaped cross section. The members comprise a hollow main body portion 11 and a hollow receiving portion 12 for accommodating a glazing pane or a second frame member.
Both the main body portion 11 and receiving portion 12 are made from PVC.
The receiving portion 12 comprises an arm 13 that extends from one end of the main body 11 at one edge, to define an L shape. The arm 13 has an inwardly directed flange 14 that extends inwardly at substantially 90° to the arm 13.
A recess 16 for receiving molten plastic is defined by the flange 14 and the arm 13. The recess 16 may be any suitable shape. In the embodiment of Figure 3, the recess 16 is of part-circular section, being in the shape of a concave dish. In the embodiment of Figure 4, the recess 16 is in the form of a step.
A gasket 15, for forming a seal between the frame member 10 and a glazing pane or second frame member (not shown) accommodated in the receiving portion 12, is co-extruded on the inwardly directed flange 14.
The gasket 15 is made from PVC that is softer than the PVC used for the main body and receiving portion.
The portion of the receiving portion 12 to which the gasket 15 is attached is substantially solid. Accordingly, the frame member 10 does not include a groove behind the gasket 15 for receiving a replacement gasket.
Two such frame members 10 may be welded together in the production of a window frame or doorframe, in accordance with conventional methods.
When this welding is carried out, the excess material (sprue) flows or deforms into the recess 16 and therefore does not form a build up along the fusion line that needs to be removed to allow the frame to operate and seal correctly. In particular, sprue located in the recess 16 will not adversely affect the seal between the frame member 10 and the glazing pane or second frame member.

Claims (17)

1. A frame member for a window frame or doorframe, the frame member comprising a main body portion and a receiving portion for accommodating a glazing pane or a second frame member, the receiving portion Comprising an arm that extends from one end of the main body and that has an inwardly directed flange, wherein the flange is shaped and sized such that a sealing element, for forming a seal between the frame member and a glazing pane or second frame member accommodated in the receiving portion, may be provided on the inwardly directed flange, and wherein the flange and the arm are shaped and sized so as to define a recess between the flange and the arm for receiving sprue.
2. A frame member according to claim 1 wherein the frame member does not include a groove for receiving a replacement sealing element.
3. A frame member according to claim 1 or claim 2 wherein the recess is of part-circular section.
4. A frame member according to claim I or claim 2 wherein the recess is in the form of a step.
5. A frame member according to any one of the preceding claims wherein the frame member is of substantially L-shaped, 2-shaped or T-shaped cross section.
6. A frame member according to any one of the preceding claims wherein the inwardly directed flange extends inwardly from the arm at substantially 90°.
7. A frame member according to any one of the preceding claims wherein the frame member is provided with a sealing element, for forming a seal between the frame member and a glazing pane or second frame member accommodated in the receiving portion, on the inwardly directed flange of the arm.
8. A frame member according to claim 7 wherein the sealing element is co extruded onto the flange of the receiving portion.
9. A frame member according to claim 7 or claim 8 wherein the sealing element is made of material that is softer than the material of the main body.
10. A frame member according to any one of the preceding claims wherein the main body and receiving portion of the frame member is made of PVC.
11. A window frame or doorframe comprising one or more frame members as defined in any one of the preceding claims.
12. A frame according to claim 11 wherein the frame is a window outerframe, a transom, a mullion or a window sash.
13. A frame according to claim 11 or claim 12 wherein the recess of the frame member contains sprue.
14. The use of a frame as defined in any one of claims 1 to 10 in the production of a window frame or doorframe by welding two or more frame members together, to alleviate the need to remove built up material along the fusion line.
15. The use of a frame as defined in any one of claims 1 to 10 in the production of a window frame or doorframe by welding two or more frame members together, to create a better seal both in the glazed and sealing area.
16. A method of producing a window frame or door frame as defined in any one of claims 11 to 13, the method comprising: (a) providing two or more frame members as defined in any one of claims 1 to 10; and (b) welding together the frame members at their ends; wherein the sprue flows or deforms into the recess of each frame member and therefore does not form a build up along the fusion line that needs to be removed to allow the frame to operate and seal correctly.
17. A method according to claim 16, wherein the method involves the step of providing sealing elements on the flange of each frame member.
GB0716077.3A 2007-08-17 2007-08-17 Frame members Active GB2451893B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB0716077.3A GB2451893B (en) 2007-08-17 2007-08-17 Frame members

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB0716077.3A GB2451893B (en) 2007-08-17 2007-08-17 Frame members

Publications (3)

Publication Number Publication Date
GB0716077D0 GB0716077D0 (en) 2007-09-26
GB2451893A true GB2451893A (en) 2009-02-18
GB2451893B GB2451893B (en) 2012-11-14

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Family Applications (1)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2284349A1 (en) * 2009-07-09 2011-02-16 REHAU AG + Co Plastic profile for a frame component and frame component including such a plastic profile
GB2530504A (en) * 2014-09-23 2016-03-30 Camden Group Ltd An elongate profile member

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2272244A (en) * 1992-11-06 1994-05-11 Bowater Windows Ltd Window frame profile
GB2282401A (en) * 1993-09-08 1995-04-05 Scholes Ernest M H Extruded frame section
GB2420145A (en) * 2004-11-13 2006-05-17 Plastics Const Self supporting glazing support

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1236247B (en) * 1989-11-14 1993-01-27 Finstral Spa EXTRUDED PROFILES IN PLASTIC MATERIAL EQUIPPED WITH SEALS REPORTED FOR EXTRUSION AND JOINT SYSTEM OF THESE
DE19819086A1 (en) * 1998-04-29 1999-11-04 Roto Frank Ag Method for assembling window or door sashes, frame profile part in particular. For use in such a method and in particular. Window or door sashes produced by such a method
FR2781519B1 (en) * 1998-07-21 2000-12-08 Lapeyre WINDOW CHASSIS, PROFILE AND METHOD FOR THE PRODUCTION THEREOF
DE29922952U1 (en) * 1999-12-29 2000-02-24 Schüco International KG, 33609 Bielefeld Frame or additional profile made of metal for the production of windows or doors

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2272244A (en) * 1992-11-06 1994-05-11 Bowater Windows Ltd Window frame profile
GB2282401A (en) * 1993-09-08 1995-04-05 Scholes Ernest M H Extruded frame section
GB2420145A (en) * 2004-11-13 2006-05-17 Plastics Const Self supporting glazing support

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2284349A1 (en) * 2009-07-09 2011-02-16 REHAU AG + Co Plastic profile for a frame component and frame component including such a plastic profile
GB2530504A (en) * 2014-09-23 2016-03-30 Camden Group Ltd An elongate profile member
GB2530504B (en) * 2014-09-23 2019-09-25 Camden Group Ltd An elongate profile member

Also Published As

Publication number Publication date
GB0716077D0 (en) 2007-09-26
GB2451893B (en) 2012-11-14

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