GB2470217A - Insulated frame member - Google Patents

Insulated frame member Download PDF

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Publication number
GB2470217A
GB2470217A GB0908314A GB0908314A GB2470217A GB 2470217 A GB2470217 A GB 2470217A GB 0908314 A GB0908314 A GB 0908314A GB 0908314 A GB0908314 A GB 0908314A GB 2470217 A GB2470217 A GB 2470217A
Authority
GB
United Kingdom
Prior art keywords
frame member
insulating web
frame
web
member according
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.)
Withdrawn
Application number
GB0908314A
Other versions
GB0908314D0 (en
Inventor
Russell Wayne Yates
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.)
BEAUFORT SECURE DESIGN Ltd
Original Assignee
BEAUFORT SECURE DESIGN 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 BEAUFORT SECURE DESIGN Ltd filed Critical BEAUFORT SECURE DESIGN Ltd
Priority to GB0908314A priority Critical patent/GB2470217A/en
Publication of GB0908314D0 publication Critical patent/GB0908314D0/en
Publication of GB2470217A publication Critical patent/GB2470217A/en
Withdrawn legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B17/00—Accessories in connection with locks
    • E05B17/0075—Insulating, e.g. for limiting heat transfer; Increasing fire-resistance of locks
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B9/00—Lock casings or latch-mechanism casings ; Fastening locks or fasteners or parts thereof to the wing
    • E05B9/08—Fastening locks or fasteners or parts thereof, e.g. the casings of latch-bolt locks or cylinder locks to the wing
    • 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
    • E06B3/04—Wing frames not characterised by the manner of movement
    • E06B3/263—Frames with special provision for insulation
    • E06B2003/26349—Details of insulating strips
    • E06B2003/2635—Specific form characteristics
    • E06B2003/26358—Specific form characteristics stepped or undulated
    • 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
    • E06B2003/2639—Provisions for fittings, e.g. locks or hinges

Landscapes

  • Engineering & Computer Science (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Wing Frames And Configurations (AREA)

Abstract

An insulated frame member 1 comprising first and second frame elements 2, 3 and comprising an insulating web 6 extending between the first and second frame elements 2, 3, wherein the frame member 1 comprises a groove or channel 15 between the first frame element 2 and the insulating web 6, the groove 15 being adapted to receive a locking mechanism 8. Preferably the end wall of the groove is part of the insulating web 6. The insulating web 6 may have a cut out to accommodate the locking mechanism and the locking mechanism may be secured in position by screws or bolts passing through the faceplate. The insulating web 6 may be manufactured from polyamide. The groove 15 may be Eurogroove.

Description

Insulated Frame Member
Field of the Invention
This invention relates to an insulated frame member. More particularly, although not exclusively, the present invention relates to adoor frame or window frame comprisingan insulated frame member.
Background Art
Frame members, for example for use in double glazed windows and doors, may comprise two frame elements with an air gap between them. The air gap provides insulation between the inside and the outside of the frame. The two elements may be connected by a web that maintains the spacing between the frame elements. If that web is made from a thermally conducting material, such as aluminium, it provides a thermally conducting bridge between the inner and outer frame elements. Using a door frame of a house as an example, if cold air outside the house cools the outer frame element, heat from the inner frame element will be conducted along the thermally conducting web to the outer frame element. Since the inner frame is exposed to the air in the house, a thermal connection is made between the air in the house and the air outside and heat is lost from the house.
Frame members have been made with insulating webs.
However, where a locking mechanism is required, such frame members have been known to include a metal part to house the locking mechanism. In that case, the metal around the locking mechanism acts as a thermal bridge between the frame elements.
GB2384522 describes an insulating frame member with inner and outer sections connected by a thermally insUlating web which extends along the locking edge of the door and has a formation, which may be a groove, for receiving a locking mounting plate which supports a locking device. The locking mounting plate passes through a hole in the centre of the web and is held on both sides by the web. Thus the web must have sufficient structural rigidity to support the lock.
The present invention seeks to ameliorate at least some of the abovernentioned problems.
Disclosure of the Invention
It is an object of the invention to provide an improved insulated frame member. It is a further object of the invention to provide an improved door or window frame comprising such an insulated frame member.
In a first aspect, the invention provides an insulated frame member comprising first and second frame elements and comprising an insulating web extending between the first and second frame elements, wherein the frame member comprises a groove between the first frame element and the insulating web, the groove being adapted to receive a locking mechanism.
Preferably the groove has a first. side wall and a second side wall, opposite the first side wall, the first side wall being substantially formed by part of the first frame element and the second side wall being substantially formed by part of the insulating web.
Preferably the groove has an end wall substantially formed by part of the insulating web.
Preferably the insulating web includes a first portion that extends substantially straight across between the first and second frame elements in a direction from the first frame element to the second frame element (the depth-wise' direction) . The insulating web may be sufficiently rigid in the depth-wise direction to maintain the desired spacing of the first and second frame elements in that direction.
Preferably, the insulating web comprises a cut-out to accommodate the locking mechanism and the locking mechanism is located, in a direction parallel to the long axis of the frame member (the length-wise' direction), between the edges of the cut-out in the insulating web. The cut-out may be substantially rectangular and have one side open.
Preferably the insulating web comprises a second portion that runs in a direction perpendicular to the length-wise and depth-wise directions (the width-wise' direction) at a constant distance from the first frame element.
Preferably a first end of the second portion is connected to the first portion.
Preferably second end of the second portion is connected to a third portion that extends from the second end of the second portion to the second frame element in a depth-wise direction. The rigidity of the insulating web may be sufficient to hold the locking mechanism firmly and to prevent twisting of the locking mechanism.
Preferably the first, second and third portions form a substantially h-shaped' arrangement. Thus the insulating web may be of substantially h-shaped cross-section. That is, when viewed in cross-section, the insulating web may comprise first, second and third portions, the first portion being longer than the second and third portions, the second'portion being substantially perpendicular to the first portion and the third portion being substantially parallel to the first portion, the second portion being connected, at a first end of the second portion, to a point part way along the first portion and, at a second end of the second portion, to a first end of the third portion.
when one portion is described as "connected" to another portion it will be appreciated that the two portions may form part of a single item and that the "connection" may merely be a junction of, or change of direction in, a continuous piece of material. Indeed, that will normally be the case.
The second portion of the insulating web may form the second side wall of the groove. The end wall of the groove may be formed by at least part of the first portion of the insulating web.
The locking mechanism may have substantially parallel sides and may be located between the first and second side walls of the groove.
Preferably, the insulating web extends substantially all along the frame member in the length-wise direction.
Preferably, the insulating web has a constant cross-section along the length of the frame. It will be appreciated that such features may simplify the manufacture of the web and the frame member. The insulating web and/or the frame elements may be formed by extrusion.
Preferably, the groove is a "Eurogroove." A skilled person will understand that a "Eurogroove" is an unofficial standard groove, if-ito which many locks are designed to fit.
Preferably, the insulating web comprises a shaped portion that interlocks with a shaped portion on the first frame element. Preferably, the insulating web comprises a shaped portion that interlocks with a sIaped portion on the second frame element. Thus the insulating web may be held securely between the two frame elements. The interlocking portions may be designed so that they are engageable by sliding or by rolling.
A person skilled in the art will appreciate that the locking mechanism comprises many separate parts. For example, the locking mechanism may comprise a lock casing and a lock faceplate and bolts that protrude through apertures in the lock faceplate. Thus it may be that the part of the locking mechanism that is in contact with the web and the first frame element is the lock casing. The locking mechanism may comprise a keyhole accessible from at least one side of the frame member. The locking mechanism may comprise a multi-point locking mechanism. The locking mechanism may comprise a lever lock. Optionally, the locking mchanism may be fastened in the groove using screws or bolts passing through the faceplate.
Preferably, the insulating web and the first frame element each comprise a stop adapted to locate the locking mechanism in the width-wise' direction. The stops may be protrusions.
Alternatively, the stops may be steps. The stop on the first frame element may be substantially identical to the stop on the insulating web. Alternatively the stop on the first frame element may be different from the stop on the insulating web.
Prior art systems have located the locking mechanism in a hole in the web, so that the locking mechanism is surrounded by the web. In the present invention the locking mechanism is located between the insulating web and the first frame element.
Because the locking mechanism is located between the insulating web and the first frame element, the locking mechanism may optionally be attached to the first frame element without such connection resulting in a thermal bypass of any part of the web.
The first and second frame elements may comprise a material that is light and strong. For example, the first and second frame elements may comprise aluminium. The insulating web may comprise a material that is a thermal insulator. For example, the insulating web may comprise a plastic, such as polyamide. For example the plastic may be selected from a group consisting of polyamide PA66, polyurethane, acrylonitrile butadiene styrene (ABS), glass reinforced plastic (GRP), foam, poly vinyl chloride (PVC) and ethylene propylene diene M-class rubber (EPDM) When the web is described as "insulating," it will be appreciated that the web is a thermally insulating web, i.e. that it has a low thermal conductivity. Preferably the web has a thermal conductivity of not more than 5 W/mK at 25°C.
More preferably the web has a thermal conductivity of not more than 1 W/mK at 25°C. Yet more preferably the web has a thermal conductivity of not more. than 0.5 W/mI< at 25°C. Still more preferably the web has a thermal conductivity of not more than 0.25 W/mK at 25°C. Even more preferably the web has a thermal conductivity of not more than 0.1 W/mK at 25°C. The web may have a thermal conductivity between any of the above limits.
For example, the web may have a thermal conductivity of between 0.1 and 1 W/mK at 25°C.
The frame member may be used in a door or window frame, for example a frame for a double-glazed door or window for a house, office or other building. The first frame element may be on the outside of the frame. Alternatively, the first frame element may be on the inside of the frame, i.e facing into the building. The double glazed window or door panel may be held between the first and second frame elements.
A second aspect of the invention provides a door frame comprising a frame member according to the invention.
A third aspect of the invention provides a window frame comprising a frame member according to the invention.
1t will be appreciated that features of the invention described in relation to one aspect of the invention are applicable to other aspects of the invention and vice versa.
Brief Description of the Drawings
An illustrative embodiment of the invention will now be described in detail, by way of example only, with reference to the accompanying schematic drawings, in which: Fig. 1 is a sectional view of a frame member.
Detailed Description
In Figure 1 a frame member 1 is shown that comprises a first frame element 2 and a second frame element 3. Double glazed glass 4 is held between the frame elements 2 and 3, which are separated from one another by insulating webs 5 and 6. Between the frame elements 2 and 3 there is an air gap 7.
The insulating web 6 comprises three portions 6a, 6b and 6c, which form an "h-shaped" arrangement. A groove 15 is formed between the insulating web 6 and the first frame element 2.
The sides of the groove 15 are formed from portion 6b of the insulating web 6, part of portion 6a of the insulating web 6 and part of first frame element 2. A locking mechanism 8 is located in the groove 15 between the insulating web 6 and the first frame element 2. The locking mechanism is located in the iidth-wise direction by stops 9, on the first frame element 2, and 10, on the insulating web 6. The locking mechanism 8 is located in the length-wise direction by a cut-out in the insulating web 6. The insulating web 6 has shaped ends 6d and 6e that engage and interlock with shaped formations 11, on the first frame element 2, and 12, on the second frame element 3.
The locking mechanism 8 includes a lock body 8a and a bolt 8b, which protrudes through a hole in a lock mounting plate 8c and engages with an adjacent frame member 14. Because the locking mechanism 8 is adjacent to first frame element 2, locking mechanism 8 may, if desired, be securely fastened to first frame element 2, without the fastening providing a thermal bypass to any part of insulating web 6.
The frame elements 2 and 3 are made from aluminium. Th insulating webs 5 and 6 are made from polyamide PA66. If the frame member 1 is used as part of a door frame, with second frame element 3 exposed to the outside air, second frame element 3 will lose heat to the air and will cool down.
Because insulating webs 5 and 6 are made from polyamide PA66, heat will not readily transfer along insulating webs 5 and 6 and thus heat loss from frame element 2 to frame element 3 will be reduced. The internal side of the frame member 1 thus remains warm and heat loss through the door is reduced.
Whilst the present invention has been described and illustrated with reference to a particular embodiment, it will be appreciated by those of ordinary skill in the art that the invention lends itself to many different variations not specifically illustrated herein. Some examples of such variations and alternatives have been described above.
Where in the foregoing description, integers or elements are mentioned which have known, obvious or foreseeable equivalents, then such equivalents are herein incorporated as if individually set forth. Reference should be made to the claims for determining the true scope of the present invention, which should be construed so as to encompass any such equivalents. It will also be appreciated by the reader that integers or features of the invention that are described as preferable, advantageous, convenient or the like are optional and do not limit the scope of the independent claims.

Claims (14)

  1. I
    Claims 1. An insulated frame member comprising first and second frame elements and comprising an insulating web extending between the first and second frame elements, wherein the frame member comprises a groove between the first frame element and the insulating web, the groove being adapted to receive a locking mechanism
  2. 2. An insulated frame member according to claim 1, iherein the groove has a first side wall and a second side wall, opposite the first side wall, the first side wall being substantially formed by part of the first frame element and the second side wall being substantially formed by part of the insulating web.
  3. 3. An insulated frame member according to any preceding claim, wherein the insulating web includes a first portion that extends substantially straight across between the * first and second frame elements in the depth-wise direction.
  4. 4. An insulated frame member according to claim 3, wherein the insulating web comprises a second portion that runs in the width-wise direction at a constant distance from. the first frame element.
  5. 5. An insulated frame member according to claim 4, wherein the second portion of the insulating web forms the second side wall of the groove.
  6. 6. An insulated frame member according to claim 3, wherein the groove has an end wall formed by at least part of the first portion of the insulating web.
  7. 7. An insulated frame member according to any preceding claim, wherein the insulating web is of substantially h-shaped cross-section.
  8. 8. An insulated frame member according to any preceding claim, wherein the insulating web and the first frame element each comprise a stop adapted to locate the locking mechanism in the width-wise' direction.
  9. 9. An insulated frame member according to any preceding claim, wherein the insulating web comprises a shaped portion that interlocks with a shaped portion on the first frame element.
  10. 10. An insulated frame member according to any claim 9, wherein the insulating web comprises a shaped portion that interlocks with a shaped portion dn the second frame element.
  11. 11. An insulated frame member according to any preceding claim, wherein the insulating web is made from polyamide.
  12. 12. A door frame comprising an insulated frame member according to any preceding claim.
  13. 13. A window frame comprising an insulated frame member according to any of claims 1 to 11.
  14. 14. An insulated frame member substantially as herein described, with reference to the accompanying drawings.
GB0908314A 2009-05-14 2009-05-14 Insulated frame member Withdrawn GB2470217A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB0908314A GB2470217A (en) 2009-05-14 2009-05-14 Insulated frame member

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB0908314A GB2470217A (en) 2009-05-14 2009-05-14 Insulated frame member

Publications (2)

Publication Number Publication Date
GB0908314D0 GB0908314D0 (en) 2009-06-24
GB2470217A true GB2470217A (en) 2010-11-17

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
GB0908314A Withdrawn GB2470217A (en) 2009-05-14 2009-05-14 Insulated frame member

Country Status (1)

Country Link
GB (1) GB2470217A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3626927A1 (en) * 2018-09-19 2020-03-25 RP Technik GmbH Profilsysteme Composite profile for windows and/or doors

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3412530A1 (en) * 1984-04-04 1985-10-17 Eberhard 7121 Freudental Keller Arrangement for sealing two interlocking compositely insulated frames
EP0379471A2 (en) * 1989-01-17 1990-07-25 METRA METALLURGICA TRAFILATI ALLUMINIO S.p.A. Thermally insulated section member assembly for making door and window frames
EP1743995A1 (en) * 2005-07-13 2007-01-17 NORSK HYDRO a.s.a. Opening with a metallic fitting, embedded in a metal section comprising a ruptured thermal bridge
EP1818485A1 (en) * 2006-02-13 2007-08-15 Stremler Locking device with at least one locking point
FR2917775A1 (en) * 2007-06-20 2008-12-26 Stremler Soc Par Actions Simpl Opening e.g. door, locking device, has forend co-operated with and supported on outer or inner section of metallic joinery so as to avoid formation of thermal bridge between rod and frame of opening

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3412530A1 (en) * 1984-04-04 1985-10-17 Eberhard 7121 Freudental Keller Arrangement for sealing two interlocking compositely insulated frames
EP0379471A2 (en) * 1989-01-17 1990-07-25 METRA METALLURGICA TRAFILATI ALLUMINIO S.p.A. Thermally insulated section member assembly for making door and window frames
EP1743995A1 (en) * 2005-07-13 2007-01-17 NORSK HYDRO a.s.a. Opening with a metallic fitting, embedded in a metal section comprising a ruptured thermal bridge
EP1818485A1 (en) * 2006-02-13 2007-08-15 Stremler Locking device with at least one locking point
FR2917775A1 (en) * 2007-06-20 2008-12-26 Stremler Soc Par Actions Simpl Opening e.g. door, locking device, has forend co-operated with and supported on outer or inner section of metallic joinery so as to avoid formation of thermal bridge between rod and frame of opening

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3626927A1 (en) * 2018-09-19 2020-03-25 RP Technik GmbH Profilsysteme Composite profile for windows and/or doors

Also Published As

Publication number Publication date
GB0908314D0 (en) 2009-06-24

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