EP0199491A2 - Enceinte résistant au feu - Google Patents

Enceinte résistant au feu Download PDF

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Publication number
EP0199491A2
EP0199491A2 EP86302571A EP86302571A EP0199491A2 EP 0199491 A2 EP0199491 A2 EP 0199491A2 EP 86302571 A EP86302571 A EP 86302571A EP 86302571 A EP86302571 A EP 86302571A EP 0199491 A2 EP0199491 A2 EP 0199491A2
Authority
EP
European Patent Office
Prior art keywords
skin
slots
cabinet
door
enclosure
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Withdrawn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
EP86302571A
Other languages
German (de)
English (en)
Other versions
EP0199491A3 (fr
Inventor
Michael Francis Warren Sharp
George William Dyson
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.)
Gunnebo UK Ltd
Original Assignee
Chubb and Sons Lock and Safe Co 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 Chubb and Sons Lock and Safe Co Ltd filed Critical Chubb and Sons Lock and Safe Co Ltd
Publication of EP0199491A2 publication Critical patent/EP0199491A2/fr
Publication of EP0199491A3 publication Critical patent/EP0199491A3/fr
Withdrawn legal-status Critical Current

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05G—SAFES OR STRONG-ROOMS FOR VALUABLES; BANK PROTECTION DEVICES; SAFETY TRANSACTION PARTITIONS
    • E05G1/00—Safes or strong-rooms for valuables
    • E05G1/02—Details
    • E05G1/024—Wall or panel structure

Definitions

  • the present invention relates to fire-resistant enclosures for the protection of temperature-sensitive articles and is concerned especially with the construction of fire-resistant cabinets or files intended for the storage of electronic data-processing media such as magnetic discs and tapes.
  • Information stored on magnetic media rapidly degrades if the record carrier is heated to a temperature above about 60°C (or about 50°C in the case of so-called diskettes or floppy discs) and fire-resistant equipment for storing these kinds of material (for convenience termed herein "data cabinets”) must therefore be capable of maintaining an internal temperature below the appropriate value at which degradation commences, when exposed to fire conditions over a specified period.
  • the bodies of data cabinets are conventionally constructed with internal and external steel skins which are joined together around the opening for the door (or other closure member, eg drawer). Between these skins are enclosed selected thermally insulative and/or absorptive materials which serve to restrict the transfer of heat through the walls of the cabinet from the exterior to its interior. In designing such cabinets it is also important to minimise the amount of heat which can be conducted directly from the external to the internal skin through the structure which defines the margins of the door opening. For this reason, it is commonplace to unite the skins through wooden framing members, since wood is a material of substantially lower thermal conductivity than steel and the wooden frame can thus act as a useful heat-break between the skins. However, to reduce still further the conduction of heat through this region of the cabinet by employing materials of even lower inherent thermal conductivity for this part of the structure conflicts with the need to maintain a structure of sufficient rigidity and load- bearing capacity.
  • the present invention seeks to provide a solution to this problem and accordingly proposes to configure at least part of the skin of a data cabinet body in the region of the body which defines an access opening for the enclosure in such a way as to define a tortuous path for the conduction of heat through such skin from the exterior to the interior of the enclosure, preferably by providing in that part of the skin a plurality of elongate slots extending in the circumferential direction of the opening (that is to say perpendicular to the temperature gradient from the exterior to the interior).
  • the effective rate of conduction through the skin to the interior of the cabinet can be reduced, notwithstanding that the material of the skin has a relatively high inherent thermal conductivity.
  • the performance of the cabinet may therefore be improved while still retaining a traditional high-strength material - notably steel - as the primary skin material.
  • a similar technique may be applied to the skin structure of the door, drawer or other closure member for a data cabinet.
  • the illustrated cabinet is preferably constructed in accordance with the process described in our published United Kingdom patent application No.2153405 and has a body with inner and outer steel skins 1 and 2 between which are encased successive layers of "phase-change” material 3, polyurethane or other insulative foam 4, and an outer layer of concrete, plaster or the like water-bearing material reinforced by a steel mesh 6.
  • the door of the cabinet likewise comprises inner and outer steel skins 7 and 8 between which are encased successive layers of the same "phase-change", insulative and water-bearing materials 9/10/11.
  • the skin on the cabinet body includes a steel apron 12 which is attached to the inner skin 1 through a timber heat-break frame 13.
  • the surface of the door which faces the body apron 12 is likewise formed as a steel apron 14 which is attached to its inner skin 7 through another timber heat-break frame 15.
  • a door seal 16 is also carried in a rebate between the frame 15 and skin 17.
  • Figure 2 illustrates one example of a steel strip which can be used for constructing the aprons 12,14.
  • the aprons 12,14 there are five rows of the slots 17, although it will be appreciated that the number of rows employed in any particular construction is open to considerable variation in accordance with the dimensions of the apron concerned.
  • the slots are provided in a repeating pattern along the length of the strip with the slots in each row displaced from those in the next adjacent rows by one half pitch.
  • each apron 12,14 is accordingly covered on the inside with adhesive tape 19,20 ( Figure 1) to prevent extrusion of the water-bearing paste through the slots.
  • the slotted aprons 12,14 are conveniently faced with strips of intumescent material 21,-22 adapted to swell up and seal the air gap between the door and body under fire conditions.
  • slots 17 are provided only in the "apron" sections 12 and 14 of the door and body it is envisaged that still better performance may be achieved from the cabinet by including similar slots or equivalent relieved portions also in the metal skin sections outwardly adjacent thereto, such as in the faces designated as 2' and 8' in Figure 1.

Landscapes

  • Special Wing (AREA)
  • Door And Window Frames Mounted To Openings (AREA)
  • Building Environments (AREA)
EP86302571A 1985-04-12 1986-04-07 Enceinte résistant au feu Withdrawn EP0199491A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB858509382A GB8509382D0 (en) 1985-04-12 1985-04-12 Fire-resistant enclosures
GB8509382 1985-04-12

Publications (2)

Publication Number Publication Date
EP0199491A2 true EP0199491A2 (fr) 1986-10-29
EP0199491A3 EP0199491A3 (fr) 1987-01-28

Family

ID=10577522

Family Applications (1)

Application Number Title Priority Date Filing Date
EP86302571A Withdrawn EP0199491A3 (fr) 1985-04-12 1986-04-07 Enceinte résistant au feu

Country Status (2)

Country Link
EP (1) EP0199491A3 (fr)
GB (2) GB8509382D0 (fr)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0460444A1 (fr) * 1990-06-06 1991-12-11 HÖRMANN KG Freisen Porte coupe-feu
WO1992014020A1 (fr) * 1991-01-30 1992-08-20 John D. Brush & Co., Inc. Coffre-fort resistant au feu
FR2761585A1 (fr) * 1997-04-08 1998-10-09 Dacota Sud Ouest Sa Armoire demontable dont le volume interne est protege de la chaleur
EP0992649A1 (fr) * 1998-10-08 2000-04-12 Sa Dacota Sud Ouest Armoire demontable dont le volume interne est protege de la chaleur
EP2453098A1 (fr) * 2010-11-15 2012-05-16 Inlook Colortech Oy Porte d'accès et cadre de porte d'accès
EP2868227A1 (fr) * 2013-11-05 2015-05-06 Holzbau Schmid GmbH & Co. KG Armoire anti-feu légère

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU2010305310B2 (en) 2009-10-05 2016-12-01 Ross Malcolm Connell Fireproof refuges

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH453642A (de) * 1966-01-21 1968-03-31 Svenska Metallverken Ab Rahmen, insbesondere für Fenster und Türen
US3709169A (en) * 1970-01-16 1973-01-09 Babcock & Wilcox Co Fireproof container
CH630696A5 (de) * 1978-04-17 1982-06-30 Sistemco Nv Feuerschutzschrank.
DE2931330A1 (de) * 1979-08-02 1981-02-26 Distelrath Gmbh Stahlschrank, tresor o.dgl.
DE3326218C2 (de) * 1983-07-21 1994-09-01 Metallbau Kaiser Gmbh Rahmenelement für Brandschutztüren
GB8400990D0 (en) * 1984-01-14 1984-02-15 Chubb & Sons Lock & Safe Co Fireresistant enclosures

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0460444A1 (fr) * 1990-06-06 1991-12-11 HÖRMANN KG Freisen Porte coupe-feu
WO1992014020A1 (fr) * 1991-01-30 1992-08-20 John D. Brush & Co., Inc. Coffre-fort resistant au feu
FR2761585A1 (fr) * 1997-04-08 1998-10-09 Dacota Sud Ouest Sa Armoire demontable dont le volume interne est protege de la chaleur
EP0992649A1 (fr) * 1998-10-08 2000-04-12 Sa Dacota Sud Ouest Armoire demontable dont le volume interne est protege de la chaleur
EP2453098A1 (fr) * 2010-11-15 2012-05-16 Inlook Colortech Oy Porte d'accès et cadre de porte d'accès
EP2868227A1 (fr) * 2013-11-05 2015-05-06 Holzbau Schmid GmbH & Co. KG Armoire anti-feu légère
EP2868227B1 (fr) 2013-11-05 2016-07-06 Holzbau Schmid GmbH & Co. KG Armoire anti-feu légère

Also Published As

Publication number Publication date
GB2173838B (en) 1988-08-03
GB8509382D0 (en) 1985-05-15
GB2173838A (en) 1986-10-22
GB8608410D0 (en) 1986-05-14
EP0199491A3 (fr) 1987-01-28

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Inventor name: SHARP, MICHAEL FRANCIS WARREN

Inventor name: DYSON, GEORGE WILLIAM