EP0787236A1 - Ameliorations relatives aux dispositifs de protection contre le feu - Google Patents

Ameliorations relatives aux dispositifs de protection contre le feu

Info

Publication number
EP0787236A1
EP0787236A1 EP96926461A EP96926461A EP0787236A1 EP 0787236 A1 EP0787236 A1 EP 0787236A1 EP 96926461 A EP96926461 A EP 96926461A EP 96926461 A EP96926461 A EP 96926461A EP 0787236 A1 EP0787236 A1 EP 0787236A1
Authority
EP
European Patent Office
Prior art keywords
fire
fabric
barrier according
fire cover
cover
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.)
Ceased
Application number
EP96926461A
Other languages
German (de)
English (en)
Inventor
Sean Alan Wilson
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.)
TBA TEXTILES Ltd
Original Assignee
TBA Industrial Products 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
Priority claimed from GBGB9515019.9A external-priority patent/GB9515019D0/en
Priority claimed from GBGB9523451.4A external-priority patent/GB9523451D0/en
Application filed by TBA Industrial Products Ltd filed Critical TBA Industrial Products Ltd
Publication of EP0787236A1 publication Critical patent/EP0787236A1/fr
Ceased legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B9/00—Ceilings; Construction of ceilings, e.g. false ceilings; Ceiling construction with regard to insulation
    • E04B9/006—Ceilings; Construction of ceilings, e.g. false ceilings; Ceiling construction with regard to insulation with means for hanging lighting fixtures or other appliances to the framework of the ceiling
    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62C—FIRE-FIGHTING
    • A62C2/00—Fire prevention or containment
    • A62C2/06—Physical fire-barriers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S8/00—Lighting devices intended for fixed installation
    • F21S8/02—Lighting devices intended for fixed installation of recess-mounted type, e.g. downlighters

Definitions

  • This invention is concerned with at least temporarily preventing flames from passing through service opening ⁇ in walls and/or ceilings.
  • One proposal for accomplishing this is known from GB-A-2235710.
  • This discloses a fire cover of woven fire resistant fabric supported by a structural frame to form a tent-like structure. The edges of the fabric lie against the surface of a substrate so as to surround the margins of an aperture in the latter. Whilst this type of structure is technically effective, it does require the production of not only a tent-like fabric structure, but also of a suitable supporting frame, preferably of metal. It is therefore an object of the present invention to provide a simplified construction.
  • a fire cover or fire barrier constituted by a tray-like assembly, optionally comprising a base and sidewalls, and made from glass fibre fabric treated to enhance its integrity under fire conditions.
  • the glass fabric is preferably a texturised glass fibre fabric and the treatment to enhance integrity under fire conditions is, for example, of the kind disclosed in GB-A-2079801.
  • the assembly is used in an inverted attitude, with its edges in contact with one surface of a substrate surrounding the margins of an aperture which is to be protected.
  • the fire cover or fire barrier may be attached to the surface of the substrate by any convenient means, including for example, by means of screws and/or clips, although in some circumstances the use of gravity alone may be possible.
  • the substrate is a suspended ceiling with apertures containing, for example, light fittings. Even more surprisingly, in the latter case, the assembly can be allowed to collapse onto the back of a light fitting without compromising its performance as a fire cover.
  • the substrate-contacting portions of the sidewalls may be provided with lateral extensions or flaps which in use extend over and lie on adjacent portions of the substrate.
  • a woven glass-fibre fabric is preferred, preferably one based on textured yarns. It may be formed into the tray-like assembly of this invention in any convenient manner, for example, by cutting and sewing. If desired, the assembly may be provided with at least one air vent. This may be preferred where the aperture contains a light fitting which may otherwise overheat.
  • Fabric densities in the range 200 to 3000 g/m 2 may be employed, more preferably in the range 500 to 1200 g/m 2 .
  • Figure 1 is a schematic view of a fire cover or fire barrier according to the invention
  • Figure 2 is a perspective view of the fire cover or fire barrier of Figure 1 located above a suspended ceiling.
  • a box-like glass fibre fabric assembly 1 comprises four side walls 2, 3, 4 and 5 respectively, extending from the margins of a rectangular base portion 6.
  • the tray is in fact a one-piece construction, made from a fabric sheet, rectangular corner portions of which have been cut away to permit folding into the configuration shown.
  • the abutting edges of the side walls are joined by stitching (not shown) , although it would be equally acceptable to use staples and/or clips.
  • Alternative ways of fabricating the corners and/or the complete assembly are also possible.
  • FIG 2 the glas ⁇ fibre fabric as ⁇ embly of Figure 1 i ⁇ shown in po ⁇ ition on the upper surface of a conventional suspended ceiling.
  • the latter comprises a plurality of ceiling tiles 11 supported by cross rails 15, 16 and the usual hangers (not shown) .
  • One such tile has been replaced by a light fitting (not ⁇ hown) and to protect the aperture defined by that fitting again ⁇ t immediate passage of flames in the event of a fire the fire barrier of Figure 1 has been inverted, placed over the fitting and its margin ⁇ secured to the adjacent tiles/rails.
  • the base 6 and ⁇ idewalls 2, 3, 4 and 5 being non-rigid are supported by the light fitting, onto which the fabric in effect collapses.
  • the fabric was a 900g/m 2 woven gla ⁇ fibre textile, without any reinforcement.
  • the cloth wa ⁇ woven from texturi ⁇ ed gla ⁇ fibre yarn and it was treated with a non-intumescent char-forming compo ⁇ ition of the kind disclosed in GB-A-2079801.
  • the test in this case was carried out using a proprietary suspended ceiling system which had already a one hour fire rating under BS476, part 23:5, 1987 (protecting steel beams) .
  • the individual sidewalls 2, 3, 4 and 5 may be provided with marginal flaps, as for example indicated at 10 by dotted lines in Figures 1 and 2. Such flaps may serve to enhance fire performance by providing additional protection for the margins of the light fitting (or other) aperture.

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Building Environments (AREA)

Abstract

Protection contre le feu destinée à un toit ou à une ouverture de mur, comprenant un ensemble de type plateau fait d'une structure en fibres de verre traitée de façon à présenter une plus grande intégrité en cas d'incendie.
EP96926461A 1995-07-21 1996-07-18 Ameliorations relatives aux dispositifs de protection contre le feu Ceased EP0787236A1 (fr)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
GBGB9515019.9A GB9515019D0 (en) 1995-07-21 1995-07-21 Improvements in and relating to fire resistant assemblies
GB9515019 1995-07-21
GBGB9523451.4A GB9523451D0 (en) 1995-11-16 1995-11-16 Improvements in and relating to fire resistant assemblies
GB9523451 1995-11-16
PCT/GB1996/001720 WO1997005342A1 (fr) 1995-07-21 1996-07-18 Ameliorations relatives aux dispositifs de protection contre le feu

Publications (1)

Publication Number Publication Date
EP0787236A1 true EP0787236A1 (fr) 1997-08-06

Family

ID=26307441

Family Applications (1)

Application Number Title Priority Date Filing Date
EP96926461A Ceased EP0787236A1 (fr) 1995-07-21 1996-07-18 Ameliorations relatives aux dispositifs de protection contre le feu

Country Status (2)

Country Link
EP (1) EP0787236A1 (fr)
WO (1) WO1997005342A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10223904A1 (de) * 2002-05-29 2003-12-11 Kaiser Gmbh & Co Kg Unterdecke für Brandschutzzwecke
GB2424693B (en) * 2005-03-29 2009-08-05 Laurence Kovacs Fire hood

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4210070A (en) * 1978-03-06 1980-07-01 Dayus Barry R Ceiling fixture with thermal protection
GB2079801B (en) * 1980-06-27 1984-03-14 Tba Industrial Products Ltd Weld splash resistant glass fibre fabrics
GB9220478D0 (en) * 1992-09-29 1992-11-11 Hamilton Arthur P Fire stop covering device for aperture in fire resistant structure
DE9318416U1 (de) * 1993-12-02 1994-03-17 Adelmann-Lichtsysteme Gesellschaft für Licht mbH, 80799 München Unterdecke für Brandschutzzwecke

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO9705342A1 *

Also Published As

Publication number Publication date
WO1997005342A1 (fr) 1997-02-13

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Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

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17P Request for examination filed

Effective date: 19970314

AK Designated contracting states

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Designated state(s): DE FR GB

RAP1 Party data changed (applicant data changed or rights of an application transferred)

Owner name: TBA TEXTILES LIMITED

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Effective date: 20010705

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Effective date: 20020801