EP0473304A2 - Brandschutztürblatt - Google Patents

Brandschutztürblatt Download PDF

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Publication number
EP0473304A2
EP0473304A2 EP91307260A EP91307260A EP0473304A2 EP 0473304 A2 EP0473304 A2 EP 0473304A2 EP 91307260 A EP91307260 A EP 91307260A EP 91307260 A EP91307260 A EP 91307260A EP 0473304 A2 EP0473304 A2 EP 0473304A2
Authority
EP
European Patent Office
Prior art keywords
door leaf
fire door
metal sheets
leaf according
fire
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Withdrawn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
EP91307260A
Other languages
English (en)
French (fr)
Other versions
EP0473304A3 (de
Inventor
John Nimmo
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.)
ACCENT GROUP Ltd
Original Assignee
ACCENT GROUP 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 ACCENT GROUP Ltd filed Critical ACCENT GROUP Ltd
Publication of EP0473304A2 publication Critical patent/EP0473304A2/de
Publication of EP0473304A3 publication Critical patent/EP0473304A3/de
Withdrawn legal-status Critical Current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
    • E06B5/00—Doors, windows, or like closures for special purposes; Border constructions therefor
    • E06B5/10—Doors, windows, or like closures for special purposes; Border constructions therefor for protection against air-raid or other war-like action; for other protective purposes
    • E06B5/16—Fireproof doors or similar closures; Adaptations of fixed constructions therefor
    • E06B5/164—Sealing arrangements between the door or window and its frame, e.g. intumescent seals specially adapted therefor

Definitions

  • the present invention relates to a fire door leaf.
  • a variety of fire door leafs are known. In certain public areas it is necessary to have a fire door leaf which not only offers good fire resistance but also is resistant to vandalism and/or graffiti.
  • a known fire door leaf for such a use incorporates a metal sheet which has been attached to a wooden door leaf. However, such an arrangment suffers from both manufacturing and operational disadvantages.
  • the present invention aims to provide an improved fire door leaf.
  • the present invention provides a fire door leaf comprising a pair of spaced metal sheets having respective outer edges which are bent back towards the respective other metal sheet to define channel portions along the edge of the door leaf, opposed channel portions being spaced apart to form at least one recess surrounding the door leaf, intumescent sealing material located in the at least one recess, and a vitreous enamel coating on the exposed surface of at least one of the metal sheets.
  • a fire door leaf 2 is mounted in a door frame 4 comprising opposed side frame members 6,8 and top frame member 10.
  • the fire door leaf 2 comprises a pair of parallel spaced metal sheets 12,14.
  • the sheets 12,14 have respective outer edges 16,18 which are bent back towards the respective other metal sheet 14,12 to define channel portions 20,22 along the edge 24 of the door leaf 2.
  • Opposed channel portions 20,22 are spaced apart to form a recess 26 surrounding the door leaf 2.
  • a U-shaped metal frame member 28 is disposed between the metal sheets 12,14 with the two arms 30,32 of the U being disposed against the respective inner surfaces of the metal sheets 12,14 and the outer surface of the central portion 34 of the U defining the inner surface of the recess 26.
  • Intumescent sealing material 36 is located in the recess 26.
  • the inner edges of the channel portions 20,22 are welded to the central portion 34 of the frame member 28.
  • Figure 5 shows a first arrangement of the intumescent sealing material 36 which comprises a multi-laminar structure located in the recess 26.
  • Figure 6 shows an alternative arrangement of the intumescent material 36 which comprises a multi-laminar structure having a smoke seal 37 extending out of the recess 26.
  • Each metal sheet 12,14 comprises 1.6 mm steel plate of vitreous enamel quality (i.e. CR4 grade or better) which preferably complies with BS1449.
  • the exposed surface of the or each of the metal sheets 12,14 is coated with a vitreous enamel coating 38,40.
  • the coating 38,40 has been fired onto the respective metal sheet 12,14 in an enamelling process at a temperature of around 800°C.
  • the enamel coating 38,40 is fired onto the respective sheet 12,14 after bending of the respective sheet 12,14.
  • a suitable enamel is manufactured by Escol Products Limited of Wellingborough, United kingdom.
  • the door leaf 2 incorporates between the metal sheets 12,14 a series of strengthening members 42 which are bonded to the inner surfaces of the metal sheets 12,14.
  • the strengthening members 42 are composed of a heat resistant material such as Vicuclad.
  • the strengthening members 42 add structural rigidity and strength to the door leaf 2.
  • the strengthening members 42 strengthen the door against vandalism, e.g. against being kicked in.
  • the strengthening members are spaced apart so as to permit a degree of heat conduction between the metal sheets 12,14 when there is a fire on one side of the door leaf 2.
  • Hinges 44 are located on one side of the door leaf 2 for hingedly mounting the door leaf 2 to the door frame 4, which is also composed of metal sections, 6,8,10.
  • a handle 46 On the opposite side of the door leaf 2 is a handle 46 with a latch 48 which lockably engages the door frame 4.
  • a window 50 is disposed in the door leaf 2.
  • the window 50 comprises a fire resistant glass sheet 52 which is mounted via a gasket 54 by mitred frame members 56,58 in cut out orifices 60,62 in the metal sheets 12,14.
  • the metal sheets 12,14 are supported by upper and lower horizontal U-shaped channel members 64,66 and by opposed vertical U-shaped channel members 68,70.
  • Each channel member 64,66,68,70 is dispsosed snuggly between the two metal sheets 12,14.
  • the window assembly is held together by screws 72 which connect together the frame members 56,58.
  • the fire door leaf of the present invention comprises vitreous enamel coated metal sheets which have been bent over at their edges whereby, apart from any window area, the entire surface of the fire door leaf which would be exposed in a fire comprises the vitreous enamel coated surface. This enables the door leaf to have good fire resistance and typically the door leaf can withstand a fire for at least one hour.
  • the construction of the present invention very conveniently enables the manufacture of a vitreous enamel coated door without the requirement for a separate enamelled metal sheet to be attached to an existing door e.g. of wood.
  • the fire door leaf of the present invention also provides the advantage that the door can be held shut by a latch which is disposed along one side of the door leaf.
  • the door leaf When the door is subjected to fire, the door leaf does not tend to bow out, thereby releasing the latch, since heat can be conducted in a controlled manner between the metal sheets 12,14 thereby substantially to prevent bowing of the door.
  • the vitreous enamel surface improves the fire resistance and also offers resistance to vandalism and graffity.
  • the intumescent material expands thereby to seal the gaps between the door leaf and the door frame, thereby providing a barrier to heat and smoke.

Landscapes

  • Engineering & Computer Science (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Special Wing (AREA)
EP19910307260 1990-08-09 1991-08-07 Brandschutztürblatt Withdrawn EP0473304A3 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB9017444A GB2247709B (en) 1990-08-09 1990-08-09 Fire door leaf
GB9017444 1990-08-09

Publications (2)

Publication Number Publication Date
EP0473304A2 true EP0473304A2 (de) 1992-03-04
EP0473304A3 EP0473304A3 (de) 1992-03-18

Family

ID=10680381

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19910307260 Withdrawn EP0473304A3 (de) 1990-08-09 1991-08-07 Brandschutztürblatt

Country Status (2)

Country Link
EP (1) EP0473304A3 (de)
GB (1) GB2247709B (de)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1996008627A2 (de) * 1994-09-13 1996-03-21 Hörmann KG Eckelhausen Feuerschutz-tür
GB2394246A (en) * 2002-10-17 2004-04-21 Michael Brian Potter Improvements in or relating to glazing
DE102006018356B3 (de) * 2006-04-19 2007-09-13 Boris Schubert Feuerhemmende Wand, Tür oder Klappe und feuerhemmende Schichten hierfür
US7921614B2 (en) 2008-02-19 2011-04-12 Lexington Manufacturing, Inc. Fire-rated light kit
CN105927121A (zh) * 2016-06-22 2016-09-07 安徽安旺门业股份有限公司 新型钢质隔热防火子母门及其制作方法
CN105927127A (zh) * 2016-06-30 2016-09-07 安徽安旺门业股份有限公司 一种带窗对开木质隔热防火门
CN106014150A (zh) * 2016-06-30 2016-10-12 安徽安旺门业股份有限公司 一种单扇带窗木质隔热防火门
CN106014106A (zh) * 2016-06-30 2016-10-12 安徽安旺门业股份有限公司 一种木质隔热防火子母门

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4244578C2 (de) * 1992-12-31 1996-05-09 Langenhorst Eva Revisionsabdeckung
GB9601964D0 (en) * 1996-01-31 1996-04-03 Dixon International Ltd Seal
GB2317914A (en) * 1996-10-05 1998-04-08 Mohammad Ali Sahba Wood and metal door
GB2365054A (en) * 2000-07-21 2002-02-13 Ian Cuthbert Stewart Adjustable door sizing apparatus
GB0319597D0 (en) * 2003-08-20 2003-09-24 Epwin Group Plc Fire resistant frames
JP6514428B2 (ja) * 2013-11-21 2019-05-15 積水化学工業株式会社 意匠性を付与した熱膨張材
JP6705626B2 (ja) * 2015-07-30 2020-06-03 ナブテスコ株式会社 防火戸

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR489790A (fr) * 1916-12-14 1919-03-11 William Henry Wheeler Perfectionnements dans les portes incombustibles
FR2176196A5 (de) * 1972-03-14 1973-10-26 Heurtey Sa
JPS53108039A (en) * 1977-03-03 1978-09-20 Kasugai Kakou Kk Surface treatment method of steel plate for enamel
FR2433094A1 (fr) * 1978-08-08 1980-03-07 Fichet Bauche Porte coupe-feu a deux vantaux
AU523388B3 (en) * 1982-03-24 1982-09-02 Materbilt Industries (Australia) Proprietary Limited Fire-retardant panel
DE3924863A1 (de) * 1988-08-03 1990-02-08 Albert Georges Fleury Metalltuer

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB796118A (en) * 1956-05-09 1958-06-04 Stewart And Gray Ltd Improvements in or relating to metal plates for facing walls, partitions and other backings
GB2198775B (en) * 1986-12-19 1991-01-16 Ici Plc Fire resistant door leaf

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR489790A (fr) * 1916-12-14 1919-03-11 William Henry Wheeler Perfectionnements dans les portes incombustibles
FR2176196A5 (de) * 1972-03-14 1973-10-26 Heurtey Sa
JPS53108039A (en) * 1977-03-03 1978-09-20 Kasugai Kakou Kk Surface treatment method of steel plate for enamel
FR2433094A1 (fr) * 1978-08-08 1980-03-07 Fichet Bauche Porte coupe-feu a deux vantaux
AU523388B3 (en) * 1982-03-24 1982-09-02 Materbilt Industries (Australia) Proprietary Limited Fire-retardant panel
DE3924863A1 (de) * 1988-08-03 1990-02-08 Albert Georges Fleury Metalltuer

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
DERWENT WPI, Derwent Publications, Sections M13, P61, AN 78-77316a; & JP-A-53 108 039 (KASUGAI KAKO KK) 20.09.1978 *
DERWENT WPIL, Derwent Publications, Section Mechanical, DW8949, AN 89-362286; SE-A-8801381 (LINDSDALS SMIDE AB) 14.10.1989 *

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1996008627A2 (de) * 1994-09-13 1996-03-21 Hörmann KG Eckelhausen Feuerschutz-tür
WO1996008627A3 (de) * 1994-09-13 1996-06-27 Hoermann Kg Feuerschutz-tür
GB2394246A (en) * 2002-10-17 2004-04-21 Michael Brian Potter Improvements in or relating to glazing
GB2394246B (en) * 2002-10-17 2006-07-19 Michael Brian Potter Improvements in or relating to glazing
DE102006018356B3 (de) * 2006-04-19 2007-09-13 Boris Schubert Feuerhemmende Wand, Tür oder Klappe und feuerhemmende Schichten hierfür
US7921614B2 (en) 2008-02-19 2011-04-12 Lexington Manufacturing, Inc. Fire-rated light kit
CN105927121A (zh) * 2016-06-22 2016-09-07 安徽安旺门业股份有限公司 新型钢质隔热防火子母门及其制作方法
CN105927127A (zh) * 2016-06-30 2016-09-07 安徽安旺门业股份有限公司 一种带窗对开木质隔热防火门
CN106014150A (zh) * 2016-06-30 2016-10-12 安徽安旺门业股份有限公司 一种单扇带窗木质隔热防火门
CN106014106A (zh) * 2016-06-30 2016-10-12 安徽安旺门业股份有限公司 一种木质隔热防火子母门

Also Published As

Publication number Publication date
GB9017444D0 (en) 1990-09-26
GB2247709B (en) 1994-07-27
EP0473304A3 (de) 1992-03-18
GB2247709A (en) 1992-03-11

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