EP0721045B1 - Système pour la fermeture d'un mur creux - Google Patents

Système pour la fermeture d'un mur creux Download PDF

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Publication number
EP0721045B1
EP0721045B1 EP19950309480 EP95309480A EP0721045B1 EP 0721045 B1 EP0721045 B1 EP 0721045B1 EP 19950309480 EP19950309480 EP 19950309480 EP 95309480 A EP95309480 A EP 95309480A EP 0721045 B1 EP0721045 B1 EP 0721045B1
Authority
EP
European Patent Office
Prior art keywords
cavity closer
cavity
fixing clip
frame
closer
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.)
Expired - Lifetime
Application number
EP19950309480
Other languages
German (de)
English (en)
Other versions
EP0721045A1 (fr
Inventor
Daniel Machon
David Anthony Baldwin
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.)
AOC Technology AG
Original Assignee
Owens Corning Polyfoam UK 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 Owens Corning Polyfoam UK Ltd filed Critical Owens Corning Polyfoam UK Ltd
Publication of EP0721045A1 publication Critical patent/EP0721045A1/fr
Application granted granted Critical
Publication of EP0721045B1 publication Critical patent/EP0721045B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • E06B1/00—Border constructions of openings in walls, floors, or ceilings; Frames to be rigidly mounted in such openings
    • E06B1/003—Cavity wall closers; Fastening door or window frames in cavity walls

Definitions

  • the present invention relates to a cavity closer system which insulates and closes a cavity in an external cavity wall around window and door openings.
  • Closing the wall cavity around window and door openings is difficult to achieve using traditional cut brick and damp proof course methods. Failure to do so can lead to cold bridging and water penetration resulting in wet reveals, rotting frames, mould growth and cracked plaster.
  • a modern solution to the problem is to provide a cavity closer comprising a rigid PVC-U channel extrusion filled with polyisocyanurate foam insulation: such a cavity closer system is available in the UK under the tradename THERMABATE (Registered Trade Mark).
  • the PVC-U extrusion sleeve supports the foam insulation and provides a waterproof barrier.
  • the dimensions of the rigid PVC-U channel extrusion are chosen according to the width of the cavity, normally laid down in the appropriate building regulations, and cut according to the height or length of the opening.
  • the rigid PVC-U extrusion cavity closer is also provided with a number of T-shaped projecting flanges running along its length which give a key for plastering and provide protection against water penetration across the cavity.
  • Separate PVC-U moulded wall fixing ties are provided which are adapted to slot between the T-shaped flanges provided on the cavity closer and key into a mortar bed joint to hold the cavity closer in position.
  • This system is relatively expensive due to the amount of plastics material used to form the body of the cavity closer.
  • a fixing clip for use with a cavity closer comprises a central springy tongue integral with a substantially planar frame, the springy tongue extending in a direction away from the plane of the frame and the frame also having at least one integral penetrating projection directed away from the plane of the frame in an opposite direction to that of the springy tongue.
  • the penetrating projections of a number of fixing clips of the present invention are arranged to engage opposite faces of a cavity closer so that when the cavity closer and fixing clips are inserted into a wall cavity opening, the springy tongue of each of the fixing clips acts as a wedge between the cavity closer and adjacent wall to hold the cavity closer in place.
  • the fixing clip further comprises a first flange formed on an end edge of the frame which, in use, aligns with an outwardly exposed face of the cavity closer and forms a support ledge to limit the extent to which the cavity closer can be inserted into a wall cavity opening.
  • the first flange is provided with a keying means.
  • the fixing clip includes a second flange formed on an opposite end edge of the frame which, in use, is arranged to overlie the opposite, inwardly exposed face of the cavity closer.
  • This second flange acts as a fitting guide so that when the flange overlies the face of the cavity closer, the first flange is aligned with the opposite face of the cavity closer.
  • the second flange counteracts any levering effect that the springy tongue has when it is depressed which might otherwise detach the fixing clip from the cavity closer before it can be properly inserted into the cavity opening.
  • the at least one penetrating projection comprises a saw toothed flange formed on at least one side edge of the frame.
  • the at least one penetrating projection secures the fixing clip to the cavity closer whilst the cavity closer is inserted into the cavity opening.
  • the fixing clip is formed from a sheet metal blank. More preferably, the fixing clip is formed from stainless steel.
  • a cavity closer system comprises the combination of a cavity closer formed solely from a length of rigid, water resistant insulation material having a generally rectangular cross-section and a number of fixing clips in accordance with the first aspect of the present invention.
  • the advantage of the second aspect of present invention is that the cavity closer is formed solely from water resistant insulation material which is sufficiently rigid that it does not require any additional protective plastics sleeve and consequently, may be manufactured relatively cheaply.
  • a slot may be formed in one face to act as a water break and help to prevent water crossing the cavity.
  • the insulation material is extruded polystyrene.
  • Extruded polystyrene is inherently waterproof and is a good insulation material. Furthermore, extruded polystyrene will readily receive a fixing to hold the cavity closer in place.
  • Other suitable insulation materials include expanded polystyrene, polyurethane, phenolic, glass fibre and rock wool.
  • a surface of a face of the cavity closer is formed with a keying surface.
  • this cavity closer is that it is formed solely from water resistant insulation material which is sufficiently rigid that it does not require any additional protective plastics sleeve and consequently, may be manufactured relatively cheaply.
  • the extruded polystyrene is inherently waterproof and is a good insulation material. Furthermore, as will be described below, extruded polystyrene will readily receive a fixing to hold the cavity closer in place.
  • FIGS 2a to 2d show views of a fixing clip 6 for use with the cavity closer 1 shown in Figure 1.
  • Fixing clip 6 is formed from a sheet of stainless steel material having a thickness of around 0.5mm and comprises a central springy tongue 7 integral with a planar frame 8, a pair of saw tooth flanges 9, 10 which form penetrating projections, a support flange 11 and a fitting guide flange 12.
  • fixing clip 6 is fitted to the side walls 3, (see Figure 1) of the cavity closer 1 by pressing the penetrating projections 9, 10 into the polystyrene material so that the support flange 11 is aligned with the plane of the upwardly exposed face 4 of the closer with the guide flange 12 overlying the lower face 5.
  • the support flange 11 forms a support ledge to limit the extent to which the cavity closer can be inserted into a wall cavity opening.
  • the support flange 11 is provided with a keying surface 13.
  • the guide flange 12 acts as a fitting guide so that when the guide flange 12 overlies the face 5 of the cavity closer 1 the support flange 11 is aligned with the opposite face 4 of the cavity closer. Furthermore, the guide flange 12 counter-acts any levering effect that the springy tongue 7 has when it is depressed which might otherwise detach the fixing clip from the cavity closer before it can be properly inserted into a cavity opening.
  • Figure 3 shows a perspective view of a reveal in a cavity wall comprising a brick outer leaf 14 and a block inner leaf 15. Cavity board insulation 16 is inserted within the cavity.
  • the cavity closer 1 is inserted between the brick outer leaf and brick inner leaf and held in place by the fixing clips 6 spaced at intervals on either side of the cavity closer.
  • the springy tongue 7 of the fixing clip 6 is sufficiently resilient to hold the cavity closer in position whilst the support flange 11 of each fixing clip ensures that the cavity closer 1 cannot be inserted too far into the cavity.
  • the cavity closer extends in a vertical direction but it may also be used to close reveals which extend horizontally such as those found around doors and windows.

Landscapes

  • Engineering & Computer Science (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Clamps And Clips (AREA)
  • Connection Of Plates (AREA)

Claims (10)

  1. Agrafe de fixation (6) pour utilisation avec un élément de fermeture de cavité (1), comportant une languette flexible centrale (7) d'un seul tenant avec un cadre essentiellement plan (8), la languette flexible (7) s'étendant dans une direction à l'écart du plan du cadre (8) et le cadre ayant également au moins une saillie de pénétration d'un seul tenant (9, 10) dirigée à l'écart du plan du cadre dans une direction opposée à celle de la languette flexible (7).
  2. Agrafe de fixation (6) selon la revendication 1, comportant en outre un premier rebord (11) formé sur un bord d'extrémité du cadre (8) qui, lors de l'utilisation, s'aligne avec une face exposée extérieurement (4) de l'élément de fermeture de cavité (1) et forme un rebord de support destiné à limiter l'étendue sur laquelle l'élément de fermeture de cavité (1) peut être inséré dans une ouverture de cavité de mur.
  3. Agrafe de fixation (6) selon la revendication 2, dans laquelle le premier rebord (11) est pourvu de moyens d'accrochage (13).
  4. Agrafe de fixation (6) selon l'une quelconque des revendications précédentes, dans laquelle l'agrafe de fixation (6) comprend un deuxième rebord (12) formé sur un bord d'extrémité opposé du cadre (8) qui, lors de l'utilisation, est prévu pour recouvrir la face opposée exposée vers l'intérieur (5) de l'élément de fermeture de cavité (1).
  5. Agrafe de fixation (6) selon l'une quelconque des revendications précédentes, dans laquelle la saillie de pénétration (9, 10) comporte un rebord en dent-de-scie formé sur au moins un bord latéral du cadre (8).
  6. Agrafe de fixation (6) selon l'une quelconque des revendications précédentes, dans laquelle l'agrafe de fixation (6) est formée à partir d'un flan en tôle.
  7. Système de fermeture de cavité comportant la combinaison d'un élément de fermeture de cavité (1) formé uniquement d'une longueur de matière d'isolation rigide résistant à l'eau ayant une section globalement rectangulaire et un certain nombre d'agrafes de fixation (6) selon l'une quelconque des revendications précédentes.
  8. Système de fermeture de cavité selon la revendication 7, dans lequel la matière d'isolation est du polystyrène extrudé.
  9. Système de fermeture de cavité selon la revendication 7 ou 8, dans lequel une surface d'une face (4) de l'élément de fermeture de cavité (1) est formée avec une surface d'accrochage (2).
  10. Système de fermeture de cavité selon l'une quelconque des revendications 7 à 9, dans lequel une fente est formée dans une face (5) de l'élément de fermeture de cavité (1).
EP19950309480 1995-01-05 1995-12-22 Système pour la fermeture d'un mur creux Expired - Lifetime EP0721045B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GBGB9500113.7A GB9500113D0 (en) 1995-01-05 1995-01-05 Cavity closer system
GB9500113 1995-01-20

Publications (2)

Publication Number Publication Date
EP0721045A1 EP0721045A1 (fr) 1996-07-10
EP0721045B1 true EP0721045B1 (fr) 1999-07-28

Family

ID=10767607

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19950309480 Expired - Lifetime EP0721045B1 (fr) 1995-01-05 1995-12-22 Système pour la fermeture d'un mur creux

Country Status (3)

Country Link
EP (1) EP0721045B1 (fr)
DE (1) DE69511060T2 (fr)
GB (1) GB9500113D0 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2304750B (en) * 1995-08-25 1999-04-21 Cavity Trays Ltd Cavity closures
GB2306993A (en) * 1995-11-09 1997-05-14 Veka Plc Installing frames in apertures
GB2317918B (en) * 1996-10-05 2001-02-07 Anglian Windows Ltd Cavity closer/window and door frame fixing clip

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3922764A (en) * 1973-05-14 1975-12-02 Donn Prod Inc Panel clip
US3973295A (en) * 1974-08-02 1976-08-10 Janke William R Cutout holding clip
GB2178770A (en) * 1985-08-07 1987-02-18 Ig Lintels Ltd Wall cavity closure
US4641474A (en) * 1985-09-11 1987-02-10 Cannarsa Robert C Sta-put wallboard joiner
GB2197671B (en) * 1986-11-21 1991-03-20 John Edward Sampson Glover Universal cavity closure system
GB2213187A (en) * 1987-12-24 1989-08-09 Glidevale Building Prod Cavity closer
GB2267515B (en) * 1992-06-05 1996-07-03 George Molyneux Fixing devices and structural assemblies of cavity walls
GB2270534B (en) * 1992-09-14 1996-04-10 Richard William Duffin Panel frame assembly unit

Also Published As

Publication number Publication date
DE69511060D1 (de) 1999-09-02
EP0721045A1 (fr) 1996-07-10
DE69511060T2 (de) 1999-11-18
GB9500113D0 (en) 1995-03-01

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