EP0050517B1 - Expandierende Dichtungsstreifen - Google Patents

Expandierende Dichtungsstreifen Download PDF

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Publication number
EP0050517B1
EP0050517B1 EP81304916A EP81304916A EP0050517B1 EP 0050517 B1 EP0050517 B1 EP 0050517B1 EP 81304916 A EP81304916 A EP 81304916A EP 81304916 A EP81304916 A EP 81304916A EP 0050517 B1 EP0050517 B1 EP 0050517B1
Authority
EP
European Patent Office
Prior art keywords
holder
bore
baffle
thickened portion
intumescent
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
Application number
EP81304916A
Other languages
English (en)
French (fr)
Other versions
EP0050517A1 (de
Inventor
Bernard Dixon
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.)
Dixon International Ltd
Original Assignee
Dixon International 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 Dixon International Ltd filed Critical Dixon International Ltd
Priority to AT81304916T priority Critical patent/ATE11318T1/de
Publication of EP0050517A1 publication Critical patent/EP0050517A1/de
Application granted granted Critical
Publication of EP0050517B1 publication Critical patent/EP0050517B1/de
Expired 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 intumescent seals.
  • the present invention relates to a method of making tamper-resistant intumescent seals.
  • intumescent seals comprise an elongate holder containing intumescent material, the holder being provided with an opening or series of openings along its length. Such seals are fitted around doors or window openings, usually in the door or window frame.
  • the intumescent material when exposed to elevated temperature in- tumesces, that is it swells considerably and exudes through the opening or openings in the holder to seal any gap between the door or the window and the frame thereby preventing, or at least hindering, passage of smoke, flame and fumes past the door or window. This not only serves to retard spread of the fire but also assists in protecting people on the side of the door or window remote from the fire from the smoke and fumes produced by the fire.
  • intumescent seals especially when used in places frequented by children, such as schools, is that intumescent material is commonly removed from the holders by tamperers using pointed instruments as probes pushed into the holders through the openings.
  • the intumescent seals comprise an elongate holder having an opening to the exterior of the holder, a baffle within the holder defining an interior chamber and a strait within the holder providing communication between the interior chamber and the opening.
  • the interior chamber of the holder contains at least a major part of intumescent material in the holder.
  • the intumescent material within the interior chamber can intumesce through the strait and out of the holder through the opening but the baffle restricts access to the interior chamber by a probe pushed through the opening by a tamperer.
  • intumescent seals as described above in which a baffle is present in the holder, is that it has not hitherto proved possible to manufacture such seals in an economic manner. This is because the holders, as articles of indefinite length and uniform cross section, have to be made by extrusion but the dies used are necessarily complex and will not stand up to the required pressures.
  • the present invention aims at overcoming or mitigating the disadvantage described above.
  • a method of making an intumescent seal comprising: providing a tubular holder having a longitudinal bore or interior chamber defined by a thickened longitudinally extending portion of the holder contiguous with a relatively thin wall of the holder; filling the bore of the holder with solid intumescent material; and thereafter removing a longitudinally extending part of said thickened portion thereby to leave part of said thickened portion as a baffle, the space left by said removed part forming a strait having a longitudinally extending opening to the exterior of the holder and a longitudinally extending opening to the bore or chamber of the holder, the baffle being arranged to restrict access to the bore or chamber of the holder by a probe inserted through the first-mentioned opening.
  • the baffle is disposed between the strait and the longitudinal bore or interior chamber of the holder. _
  • the bore or interior chamber of the holder may be filled with the intumescent material by first filling the bore with a slurry or paste of a composition which subsequently hardens to form the intumescent material.
  • the removal of said part of the thickened portion leaves two webs, one of which constitutes the baffle and the other preferably being at the exterior of the holder.
  • the thickened portion is preferably at a corner of the holder and is preferably square or rectangular in cross section.
  • the removal of said part of the thickened portion is conveniently effected by means of a saw or other cutting tool.
  • the removal of said part of the thickened portion preferably leaves the opening from the strait into the bpre of the holder defined between a free edge of the relatively thin wall portion and a free edge of the baffle.
  • a rigid holder 1 is elongate and of uniform cross section and comprises two tubular portions 2, each having a longitudinal bore or interior chamber 3 and being interconnected by a web 4.
  • Each tubular portion 2 comprises relatively thin walls 5 and a contiguous relatively thick portion 6 at a corner of the holder, the portion 6 being of square cross section.
  • a channel 7 is defined by facing walls of the two tubular portions 2 and the connecting web 4.
  • the bores 2 are filled with a composition in the form of a slurry which is allowed or caused to harden to form a solid coherent mass of intumescent material 20. Then a longitudinal saw cut bounded by dot-dash line 8 is made into each portion 6 to remove a part thereof. The saw cut breaks into the bore 3 but leaves a web 9 (see Figure 1 B) at the exterior of the holder and a web 10 within the holder. There is thus formed a strait 11 having an opening 12 to the exterior of the holder and an opening 13 to the longitudinal bore 3 of the holder.
  • the web 10 constitutes a baffle, which, as can be seen from Figure 1 B, restricts access to the bore or interior chamber 3 of the holder by a probe pushed through the opening 12 by a tamperer.
  • a resilient draught and smoke sealing element 14 may be fitted to the seal.
  • the sealing element 14 has a foot portion 15 which is located in the channel 7 and a blade 16 which extends away from the channel.
  • the intumescent material in either of the tubular portions 2 can protect the sealing element from heat in the event of a fire. It is to be understood that it is not essential to provide the sealing element 14.
  • Figure 2A to 6A show other shapes of holders and Figures 2B to 6B show intumescent seals made therefrom, the intumescent material not being shown in the "B" figures for the sa,e of clarity.
  • the channel 7 faces in the opposite direction to the openings 12 in the intumescent seal, and the tubular portions are interconnected by a relatively-thick portion 4'.
  • the seal can be fixed to a structure such as a door by fasteners (e.g. nails) passed through the portion 4' and the channel 7 into the structure.
  • the holder of Figures 3A and 3B has only one tubular portion 2 and hence only one interior chamber 3. Ideally in use the opening 12 is disposed between the source of fire and the sealing element 14.
  • the holder of Figures 4A and 4B has an inverted T-shaped channel 7 to receive a correspondingly shaped base of a draught and smoke sealing element 14.
  • the holder of Figures 5A and 5B has only a single tubular portion 2 and the channel 7 faces in the opposite direction to the opening 12 in the seal.
  • a shallow V-shaped channel 26 in portion 4" of the holder In alignment with the channel 7 is a shallow V-shaped channel 26 in portion 4" of the holder.
  • the seal can be fixed to a structure such as a door by fasteners (e.g. nails) passed through the portion 4" and the channel 7 into the structure, heads of the fasteners being sunk into the channel 26.
  • tubular portions In the holder of Figures 6A and 6B, the tubular portions have a common wall or web 5', there being no interconnecting web 4.
  • the holders described above and as shown in the "A" figures may be made by extrusion of aluminium, aluminium alloy or plastics material.
  • plastics material preferably has inclusions of material of high thermal conductivity.
  • seals described above and which comprise a resilient draught and smoke sealing element may be used with such element omitted simply as an intumescent fire seal.

Landscapes

  • Engineering & Computer Science (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Building Environments (AREA)
  • Special Wing (AREA)

Claims (9)

1. Verfahren zur Herstellung einer schwellbaren Dichtung, umfassend: Bereithalten eines rohrförmigen Halters (1) mit einer Längsbohrung oder internen Kammer (3), die durch einen an eine relativ dünne Wand (5) des Halters angrenzenden verdickten, sich längs erstrekkenden Abschnitt (6) des Halters definiert ist; Füllen der Bohrung des Halters mit festem, schwellbarem Material (20); und hierauf Entfernen eines sich längs erstreckenden Teils des verdickten Abschnittes (6), wobei der verdickte Abschnitt teilweise als Abdeckung (10) verbleibt, so dass der durch den entfernten Teil gebildete Raum eine Nut (11) mit einer sich längs erstreckenden Oeffnung (12) nach ausserhalb des halters und einer sich längs erstreckenden Oeffnung (13) gegen die Bohrung oder Kammer des Halters bildet, und wobei die Abdeckung so angeordnet ist, dass sie den Zugang einer durch die erstgenannte Oeffnung eingeführten Sonde zur Bohrung oder Kammer des Halters verwehrt.
2. Verfahren nach Anspruch 1, in welchem die Abdeckung (10) zwischen der Nut (11) und der Längsbohrung oder internen Kammer (3) des Halters angeordnet ist.
3. Verfahren nach Anspruch 1 oder 2, in welchem die Bohrung des Halters mit schwellbarem Material gefüllt wird, indem zunächst die Bohrung mit einem Schlamm oder einer Paste einer Mischung gefüllt wird, die anschliessend zum schwellbaren Material (20) aushärtet.
4. Verfahren nach einem der vorangehenden Ansprüche, in welchem das Entfernen des genannten Teils des verdickten Abschnittes zwei Stege (9, 10) zurücklässt, von denen einer die Abdeckung (10) bildet.
5. Verfahren nach Anspruch 4, in welchem der andere Steg (9) auf der Aussenseite des Halters ist.
6. Verfahren nach Anspruch 5, in welchem der verdickte Abschnitt (6) an einer Kante des Halters ist.
7. Verfarhren nach Anspruch 6, in welchem der verdickte Abschnitt (6) quadratischen oder rechteckigen Querschnitt aufweist.
8. Verfahren nach einem der vorangehenden Ansprüche, in welchem das Entfernen des genannten Teils des verdickten Abschnittes (6) durch ein Schneidwerkzeug erfolgt.
9. Verfahren nach einem der vorangehenden Ansprüche, in welchem das Entfernen des genannten Teils des verdickten Abschnittes die Oeffnung (13) zwischen der Nut (11) und der Bohrung (3) des Halters zwischen einem freien Rand des relativ dünnen Wandteils . (5) und einem freien Rand der Abdeckung (10) bildet.
EP81304916A 1980-10-20 1981-10-20 Expandierende Dichtungsstreifen Expired EP0050517B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT81304916T ATE11318T1 (de) 1980-10-20 1981-10-20 Expandierende dichtungsstreifen.

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
GB8033772 1980-10-20
GB8033772 1980-10-20
GB8038921 1980-12-04
GB8038921 1980-12-04

Publications (2)

Publication Number Publication Date
EP0050517A1 EP0050517A1 (de) 1982-04-28
EP0050517B1 true EP0050517B1 (de) 1985-01-16

Family

ID=26277270

Family Applications (1)

Application Number Title Priority Date Filing Date
EP81304916A Expired EP0050517B1 (de) 1980-10-20 1981-10-20 Expandierende Dichtungsstreifen

Country Status (4)

Country Link
EP (1) EP0050517B1 (de)
AU (1) AU544875B2 (de)
CA (1) CA1186498A (de)
DE (1) DE3168376D1 (de)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4676025A (en) * 1986-01-02 1987-06-30 Schlegel Corporation Remotely activatable seal
DE3609364C2 (de) * 1986-03-20 1995-08-17 Manibs Spezialarmaturen Absperrhahn
NZ221488A (en) * 1986-08-20 1990-09-26 Dixon International Ltd Double action intumescent seal
ES2035669T3 (es) * 1989-03-23 1993-04-16 Theo Schroders Puerta cortafuegos.
NL9201979A (nl) * 1992-11-12 1994-06-01 Alprokon Promotie Ontwikk Bv Langwerpig, van tenminste een opneemruimte voorzien profiel.
US5492208A (en) * 1994-02-01 1996-02-20 Pemko Manufacturing Company Intumescent security pin for fire rated doors
FR2764631B1 (fr) * 1997-05-26 1999-11-26 Magri Ensemble de porte battante ou va-et-vient
GB0102552D0 (en) * 2001-02-01 2001-03-21 Lorient Polyprod Ltd Gas seal
KR101974239B1 (ko) * 2011-11-29 2019-04-30 세키스이가가쿠 고교가부시키가이샤 건축자재용 열팽창성 다층 패킹

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1529054A (en) * 1974-10-01 1978-10-18 Dixon Int Ltd Fire resistant seals

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DK138610B (da) * 1975-12-08 1978-10-02 Elton Bv Ind & Handel Brandekspansionsliste.
GB1543757A (en) * 1976-04-13 1979-04-04 Dixon Int Ltd Fire resistant seals
NL7705517A (nl) * 1977-05-18 1978-11-21 Jan Jacob Dijksterhuis Afdichtprofiel.

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1529054A (en) * 1974-10-01 1978-10-18 Dixon Int Ltd Fire resistant seals

Also Published As

Publication number Publication date
CA1186498A (en) 1985-05-07
AU7662181A (en) 1982-04-29
DE3168376D1 (en) 1985-02-28
AU544875B2 (en) 1985-06-20
EP0050517A1 (de) 1982-04-28

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