EP0237504B1 - False ceiling structure including carrying sections and false ceiling slabs carried by them - Google Patents

False ceiling structure including carrying sections and false ceiling slabs carried by them Download PDF

Info

Publication number
EP0237504B1
EP0237504B1 EP87850031A EP87850031A EP0237504B1 EP 0237504 B1 EP0237504 B1 EP 0237504B1 EP 87850031 A EP87850031 A EP 87850031A EP 87850031 A EP87850031 A EP 87850031A EP 0237504 B1 EP0237504 B1 EP 0237504B1
Authority
EP
European Patent Office
Prior art keywords
slab
false ceiling
sections
billets
outer layer
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
EP87850031A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0237504A2 (en
EP0237504A3 (en
Inventor
Jan Wilkens
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.)
Saint Gobain Ecophon AB
Original Assignee
Ecophon AB
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 Ecophon AB filed Critical Ecophon AB
Priority to AT87850031T priority Critical patent/ATE69477T1/de
Publication of EP0237504A2 publication Critical patent/EP0237504A2/en
Publication of EP0237504A3 publication Critical patent/EP0237504A3/en
Application granted granted Critical
Publication of EP0237504B1 publication Critical patent/EP0237504B1/en
Expired legal-status Critical Current

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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
    • E04B9/06—Ceilings; Construction of ceilings, e.g. false ceilings; Ceiling construction with regard to insulation characterised by constructional features of the supporting construction, e.g. cross section or material of framework members
    • E04B9/064—Ceilings; Construction of ceilings, e.g. false ceilings; Ceiling construction with regard to insulation characterised by constructional features of the supporting construction, e.g. cross section or material of framework members comprising extruded supporting beams
    • 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
    • E04B9/04—Ceilings; Construction of ceilings, e.g. false ceilings; Ceiling construction with regard to insulation comprising slabs, panels, sheets or the like
    • E04B9/0407—Ceilings; Construction of ceilings, e.g. false ceilings; Ceiling construction with regard to insulation comprising slabs, panels, sheets or the like being stiff and curved
    • 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
    • E04B9/04—Ceilings; Construction of ceilings, e.g. false ceilings; Ceiling construction with regard to insulation comprising slabs, panels, sheets or the like
    • E04B9/0435—Ceilings; Construction of ceilings, e.g. false ceilings; Ceiling construction with regard to insulation comprising slabs, panels, sheets or the like having connection means at the edges
    • 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
    • E04B9/04—Ceilings; Construction of ceilings, e.g. false ceilings; Ceiling construction with regard to insulation comprising slabs, panels, sheets or the like
    • E04B9/0464—Ceilings; Construction of ceilings, e.g. false ceilings; Ceiling construction with regard to insulation comprising slabs, panels, sheets or the like having irregularities on the faces, e.g. holes, grooves

Definitions

  • the invention relates to a false ceiling structure comprising parallel carrying sections having mutually facing horizontal flanges at their lower ends and a false ceiling slab placed between two adjacent sections, and being self-supporting between these sections with its opposing edges (31) being carried by the flanges, the slab including an exposed downwardly, facing outer layer with a mineral fibre layer adjacent thereto.
  • False ceilings of the kind discussed here are normally flat, i.e. they are formed from straight carrying sections lying in a common plane with stiff, flat false ceiling slabs carried by the sections.
  • US-A-4375742 discloses a roof insulation support system comprising the features of a ceiling structure as defined above.
  • a wavy false ceiling can thus give advantages with relation to sound attenuation.
  • lighting fittings can be placed in the top crest areas of a wave-shaped roof area, so that the fittings are not directly visible at a distance.
  • the slabs included in the false ceiling are preferably of a sound-deadening or sound-absorbing character and should also preferably afford fire protection.
  • the invention has the object of providing a false ceiling structure which has a wavy form of desired radii.
  • the above-mentioned object is achieved by the false ceiling structure as described above and wherein at least one portion of the sections is curved in the vertical plane, in that the outer layer of the slab is flexible so that the slab follows the longitudinal profile of said section, in that the mineral fibre layer of the slab is a joined to the said outer layer and is formed from a plurality of parallel, tightly adjacent, mineral fibre billets, the billets extending continuously between the two said slab edges carried by the section flanges, said billets having a fibre orientation substantially in planes at right angles to the plane of the outer layer and to the direction of said two slab edges.
  • the waveform of the false ceiling is defined by portions curved in the vertical plane of the carrying sections and in that as false ceiling slabs there are utilised slabs which are self-supporting or self-supporting in their transverse direction i.e. in the direction normal to their opposing edge portions carried by the carrying sections, but which are easily deflectable in their longitudinal direction.
  • the false ceiling slabs of the invention have a deflectable outer layer which is intended to be exposed, and a mineral fibre layer which is joined to the outer layer.
  • the outer layer is preferably air-permeable and flameproof.
  • the mineral fibre layer is formed in a manner per se from mineral fibre billets, which can be bonded to each other, e.g.
  • the sublayers have a fibre orientation substantially in planes at right angles to the plane of the surface layer and to said slab edges.
  • the mineral fibre layer a considerably higher stiffness to bending in its transverse direction than in its longitudinal direction. Accordingly, the slab can easily be given a singly curved shape in its longitudinal direction for joining up with the correspondingly curved portions of the carrying sections.
  • a conventional mineral fibre mat is formed by the fibres being deposited on a flat gas-permeable substructure, whereafter the fibre mat formed is stabilised with the aid of a binder. In such a case the fibres will be substantially oriented in planes parallel to the plane of the substructure.
  • Such a mineral fibre slab has substantially the same bending stiffnes in two directions at right angles in its plane, however.
  • the resulting slab will have considerably lower bending stiffness in its longitudinal direction than in its transverse direction.
  • the outer layer of the slab is suitably flexible or thin and deflectable, such as not to unnecessarily increase the stiffness of the false ceiling slab in its longitudinal direction.
  • the bending stiffness of the false ceiling slab can be adjusted to the width of the slab, i.e. the spacing of adjacent carrying sections, so that the slab is self-supporting substantially without sag between the carrying sections. Since the slab has substantilly lower bending stiffness in its longitudinal direction due to the mentioned billet structure, it can be readily formed to the curvature of the carrying section portions curved in the vertical plane.
  • the false ceiling slabs can then often have a bending stiffness in their longitudinal direction which is so low that the slab connects up to the curved carrying section portions by gravity.
  • the carrying sections usually include vertical webs or web portions and horizontal flanges, whereby, if so required, clamping means can be mounted on the upper part of the webs to press the slab down on to the flange of the section, so that the slab follows the flange curvature well.
  • clamping means include a fork which can be pushed over the upper portion of the vertical web of the carrying section, and a flange which thrusts out horizontally for bringing into engagement against the upper edge portion of the slab.
  • clamping means can come into use when a portion of the false ceiling is to be given a relatively heavy curvature. It should be clear, however, that the slab can be given an edge groove in which the flange of the carrying section engages, the curvature of the slab thus being defined by the flange of the section, and no clamping means is required to cause the longitudial curvature of the slab to mate with that of the section.
  • Fig. 1 schematically illustrates a cross section through a false ceiling structure in accordance with the invention.
  • Fig. 2 is a section along the line II-II in Fig. 1.
  • Fig. 3 is a perspective view of a slab included in a structure in accordance with Figs. 1 and 2.
  • Fig. 4 schematically illustrates a detail of a cross section through an alternative structure in accordance with the invention.
  • Fig. 3 there is illustrated a rectangular false ceiling slab which has two opposing long edges 31, along which the slab 3 is intended to be carried on carrying sections which are suspended from a false ceiling structure, as will be described later.
  • the slab 3 accordingly has a longitudinal direction L, which is parallel to the direction of the edges 31, and a width direction B at right angles thereto.
  • the slab 3 includes an outer layer 32 preferably of air-permeable and flameproof material, which can be a glass fibre fabric and can be painted or the like.
  • the slab 3 includes a mineral fibre layer 33 glued to the outer layer 32.
  • the layer 32 comprises a plurality of parallel mineral fibre billets 331 tightly adjacent each other.
  • Each of the billets 331 is formed from a mineral fibre mat produced conventionally, the billets 331 of the layer 3 being arranged so that their chief fibre plane is at right angles to the outer layer 32 and at right angles to the longitudinal direction L of the slab 3.
  • the surfaces of the mutually adjacent billets can be bonded to each other, e.g. glued to each other, or alternatively they may be freely placed tightly against each other.
  • Figs. 1 and 2 it will be seen that the slab 3 is carried by sections 1, conventional per se, and having at horizontal flanges 2, forming seatings for edge portions 31 of the slab 3, at least on their mutually opposing sides.
  • the billets 331 thus extend unbroken between two adjacent sections 1, and have great bending stiffness in this direction due to the indicated fibre orientation in the billets, so that the slab is self-supporting without substantial sag between two adjacent sections 1.
  • L of the slab 3 it has a notably lower bending stiffness than in the width direction B, and for this reason the slab will be deformed by gravity to form a curve mating substantially with the shape of the sections 1 in the vertical direction.
  • the sections 1 have a curved form in the vertical plane in a longitudinal portion, the curved portions being in register with each other. In this way the slab 3 can assume the form defined by the curved section portions.
  • the sections 1 may have horizontal flanges on which the slab 3 rests. If the vertical curvature of the sections 1 should be so great that the slab 3 does not come entirely into engagement against the flanges 2 by gravity, so-called clips 4 can be utilised to cause the slab 3 more closely to follow the flanges 2.
  • the sections 1 may conventionally include vertical webs 21 and the clips 4 can have a fork which can be pushed over the upper part of the webs 21, and a flange extending in over the edge region of the slab 3. By pressing down the clip 4 onto the web 21, the edge portion of the slab can be pressed into intimate contact with the flange 2 on the section 1.
  • FIG. 4 An alternative embodiment of a slab included in the false ceiling structure in accordance with the invention is illustrated in Fig. 4, the slab 3 having an edge groove 35 receiving the horizontal flange 2 of the section 1.
  • the grooved side edge of the slab 3 should be clad with an elastic material reinforcing the edge and allowing the slab to assume said curved form.
  • the slab 3 can be given desired curvature in its longitudinal direction without its bending stiffness in the width direction B being changed to any essential degree. Singly curved, arcuate or wavy false ceilings with different radii of curvature can therefore be produced with a single type of slab 3. In this way the radii of curvature, rise, wave frequency and the like for a false ceiling which is not flat can thus be selected fairly freely.
  • the curved appearance of the false ceiling is determined by suitable desired selection of the curvature of the carrying sections, the slabs being able to assume this curvature in the way described above.
  • the false ceiling can thus be given a curved appearance, e.g. merely in given longitudinal portions of the ceiling, the curvature being selected substantially freely.
  • the curvature of the ceiling and the slabs 3 is thus determined by the vertical curvature of the carrying sections.
  • the essential difference between the invention and the previous technique within the field may be considered as lying in the use of the slabs defined above as false ceiling slabs in the given configuration, in combination with carrying sections with portions curved in the vertical plane for the false ceiling slabs.

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Building Environments (AREA)
  • Roof Covering Using Slabs Or Stiff Sheets (AREA)
  • Vehicle Interior And Exterior Ornaments, Soundproofing, And Insulation (AREA)
  • Body Structure For Vehicles (AREA)
  • Working Measures On Existing Buildindgs (AREA)
EP87850031A 1986-02-11 1987-02-02 False ceiling structure including carrying sections and false ceiling slabs carried by them Expired EP0237504B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT87850031T ATE69477T1 (de) 1986-02-11 1987-02-02 Zwischendeckenstruktur mit tragenden abschnitten und durch sie getragene deckenplatten.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE8600602 1986-02-11
SE8600602A SE455320B (sv) 1986-02-11 1986-02-11 Undertakskonstruktion innefattande berande profiler och av dessa burna innertaksskivor

Publications (3)

Publication Number Publication Date
EP0237504A2 EP0237504A2 (en) 1987-09-16
EP0237504A3 EP0237504A3 (en) 1988-10-19
EP0237504B1 true EP0237504B1 (en) 1991-11-13

Family

ID=20363427

Family Applications (1)

Application Number Title Priority Date Filing Date
EP87850031A Expired EP0237504B1 (en) 1986-02-11 1987-02-02 False ceiling structure including carrying sections and false ceiling slabs carried by them

Country Status (7)

Country Link
EP (1) EP0237504B1 (sv)
AT (1) ATE69477T1 (sv)
DE (1) DE3774459D1 (sv)
DK (1) DK162455C (sv)
ES (1) ES2026945T3 (sv)
NO (1) NO163296C (sv)
SE (1) SE455320B (sv)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DK159564C (da) * 1988-07-25 1991-04-02 Rockwool Int Fremgangsmaade til fremstilling af krumme loftsplader samt loftsplade fremstillet ved fremgangsmaaden
FI83359C (sv) * 1989-04-26 1991-06-25 Ahlstroem Eristeet Oy Förfarande för framställning av en takskiva
DK168124B1 (da) * 1991-12-16 1994-02-14 Rockwool Int Pladeloft
US6374564B1 (en) * 2000-05-31 2002-04-23 Usg Interiors, Inc. Suspended curved ceiling system
EP3581727B1 (en) * 2018-06-11 2023-06-21 Certainteed Ceilings Corporation Cladding system including a flexible grid and panels
SE543796C2 (en) * 2018-11-01 2021-07-27 Saint Gobain Ecophon Ab A planar suspended ceiling system and a method for installing the ceiling system

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4027454A (en) * 1976-02-27 1977-06-07 Fastway Fasteners, Inc. Hold down clip for ceiling tile in grid-type ceiling
US4375742A (en) * 1980-06-16 1983-03-08 Metal Building Insulation-Southwest, Inc. Roof insulation support system
JPS58168750A (ja) * 1982-03-29 1983-10-05 日東紡績株式会社 曲面天井施工方法
DE3612857C3 (de) * 1986-04-16 1999-07-29 Gruenzweig & Hartmann Dämmstoffbahn aus Mineralfaserfilz

Also Published As

Publication number Publication date
ES2026945T3 (es) 1992-05-16
DK162455B (da) 1991-10-28
DK66387D0 (da) 1987-02-10
NO870519L (no) 1987-08-12
DE3774459D1 (de) 1991-12-19
SE8600602L (sv) 1987-08-12
SE455320B (sv) 1988-07-04
EP0237504A2 (en) 1987-09-16
ATE69477T1 (de) 1991-11-15
NO163296B (no) 1990-01-22
DK162455C (da) 1992-03-23
DK66387A (da) 1987-08-12
EP0237504A3 (en) 1988-10-19
SE8600602D0 (sv) 1986-02-11
NO870519D0 (no) 1987-02-10
NO163296C (no) 1990-05-02

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