US3405489A - False ceilings - Google Patents

False ceilings Download PDF

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Publication number
US3405489A
US3405489A US541239A US54123966A US3405489A US 3405489 A US3405489 A US 3405489A US 541239 A US541239 A US 541239A US 54123966 A US54123966 A US 54123966A US 3405489 A US3405489 A US 3405489A
Authority
US
United States
Prior art keywords
flange
channel
shoulder
frame
sheet
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 - Lifetime
Application number
US541239A
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English (en)
Inventor
Frisk Karl Per
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.)
CARL O A EKMAN
ERNST O V EKMAN
Original Assignee
CARL O A EKMAN
ERNST O V EKMAN
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 CARL O A EKMAN, ERNST O V EKMAN filed Critical CARL O A EKMAN
Application granted granted Critical
Publication of US3405489A publication Critical patent/US3405489A/en
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Expired - Lifetime 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
    • E04B9/30—Ceilings; Construction of ceilings, e.g. false ceilings; Ceiling construction with regard to insulation characterised by edge details of the ceiling; e.g. securing to an adjacent wall
    • E04B9/303—Ceilings; Construction of ceilings, e.g. false ceilings; Ceiling construction with regard to insulation characterised by edge details of the ceiling; e.g. securing to an adjacent wall for flexible tensioned membranes
    • E04B9/306—Tensioning hand tools therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B44—DECORATIVE ARTS
    • B44C—PRODUCING DECORATIVE EFFECTS; MOSAICS; TARSIA WORK; PAPERHANGING
    • B44C7/00—Paperhanging
    • B44C7/02—Machines, apparatus, tools or accessories therefor
    • B44C7/022—Tapestry work
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
    • E04F13/00—Coverings or linings, e.g. for walls or ceilings
    • E04F13/002—Coverings or linings, e.g. for walls or ceilings made of webs, e.g. of fabrics, or wallpaper, used as coverings or linings

Definitions

  • One kind of false ceiling comprises a surrounding frame which is secured to the structure of the room, that is usually to the walls of the room, and a sheet of plastic foil which is held stretched in position within the frame by the engagement of a border of the sheet with the frame.
  • the frame has a longitudinal channel which faces into the room and the lower wall of which is formed with a shoulder facing the base of the channel, and the border is made of a resilient plastic material having in use a U-shaped cross-section with an upper thinner one of the flanges of the U fixed to the edge of the sheet and a lower thicker one of the flanges of the U extending back beneath the sheet; the arrangement being such that the border is held in the channel in the frame by the engagement of the free edge of the thicker flange behind the shoulder and by the tension in the sheet which causes the border to rock in the channel to provide a wedging action as the base of the U bears against the upper wall of the channel.
  • This arrangement provides a simple and inexpensive fixing between the plastic foil and the frame and enables the ceiling to be erected very quickly.
  • the ceiling may also easily be taken down when for instance repairing electric cables covered by the ceiling or for washing the ceiling.
  • the border of the sheet is forced into the channel by means of a metal blade or similar tool which is pushed into the U of the border beneath the sheet.
  • a pointed tool such as an awl or needle may be pressed into the end of the thicker flange to raise it out of engagement with the shoulder of the channel so that the thicker flange of the border at this place may be drawn out of the channel.
  • the thickness of the free edge of the thicker flange should be greater than the height of the shoulder.
  • the border may have a substantially constant U-shaped section in it unstressed condition.
  • the border may form a substantially flat strip in its unstressed condition with the thinner flange secured to the sheet and the thicker flange forming an extension of the thinner flange.
  • a creasing line at the junction between the thinner and thicker flanges to facilitate bending of the border into a U-shaped section when the border is pushed into the channel of the frame.
  • the border when in use in the channel will have a U- shaped section.
  • the thicker flange of the border diverges towards its free edge with a gradually decreasing thickness into the inner flange of the border.
  • a border of this form provides a self compensating effect to support the tension in the foil.
  • the foil when the foil is under a greater tension, it pulls the thinner upper flange of the border further out of the channel and distorts the border section formed by the thinner and thicker flanges so that the thicker flange is wedged even more between the upper and lower walls of the channel and becomes shorter and stubbier and, therefore, of greater bending resistance.
  • FIGURE 1 is a vertical section through the frame of the ceiling
  • FIGURE 2 is a cross-section of one border for the sheet of plastic foil in its unstressed condition and prior to fixing to the edge of the sheet;
  • FIGURE 3 is a section similar to FIGURE 2 but showing the border welded to the edge of the sheet;
  • FIGURE 4 is a cross-section of a second border shown in its unstressed condition in solid lines, and bent into a U-section as shown in dotted lines ready to be pushed into the channel of the frame;
  • FIGURE 5 is a vertical section through the frame when the border has been placed in position in the channel of the frame by means of a blade indicated by dotted lines;
  • FIGURE 6 is the same section as FIGURE 5 but showing a pointed tool such as an awl inserted into the end of the thicker flange of the border to raise it out of engagement with the shoulder of the channel.
  • a pointed tool such as an awl inserted into the end of the thicker flange of the border to raise it out of engagement with the shoulder of the channel.
  • a wooden moulding 1 providing the appearance of a cornice from below is stuck, nailed or otherwise secured to the existing wall 2 andceiling surfaces 3 of a room.
  • the false ceiling proper consists of a sheet of P.V.C or other plastic foil 4 the edges of which are secured to the frame 1 by means of a border as shown in FIGURE 5.
  • the border which is an extrusion of a flexible plastic material has a thinner flange 5 welded to an edge of the sheet and a thicker flange or blocking bar portion 6 which is several times as thick as the flange 5.
  • the thicker flange 6 tapers from its free edge 7 towards the region 8 where it merges into the thinner flange 5.
  • the frame 1 has a horizontal channel facing into the room with an upper flat wall 10 and a lower wall 11.
  • the height H of the mouth of the channel is very slightly greater than the maximum thickness of the border, that is the sum of the maximum thicknesses a and b of the thinner and thicker flanges 5 and 6 respectively and the thickness of the foil.
  • the bottom wall 11 of the channel is formed with a longitudinal recess 12 the front of which provides a rearwardly facing shoulder 13. Alternatively, the bottom of the recess may form the bottom wall behind the shoulder as indicated by dotted lones in FIG- URE 1.
  • the frame 1 is first fixed to all four walls of the room and the border is welded to all four edges of the sheet 4.
  • the border at each edge of the sheet in turn is then forced into a corresponding channel, using a tool in the form of a metal blade 14 (FIGURE 5), until the edge 7 engages behind the shoulder 13.
  • the tension in the sheet 4 rocks the border in the channel so that, as shown in FIGURE 5, the flanges of the U spread apart and the border wedges in compression in the channel with the base of the U in contact with the wall 10.
  • the width L of the blocking bar or thicker flange 6 must be greater than the height A between the upper wall 10 and the bottom of the recess 12 and so that the blocking bar will take an oblique position in the channel as shown.
  • a particular advantage is obtained by a more or less gradual tapering of the border from the edge 7 through the region 8 to the thinner flange 5. This is that when a pull is exerted on the flange 5 by the sheet 4, the rounded outside surface of the region 8 of the U rolls against the upper wall 10 causing a thicker portion ofthe border to form the base region 8 of the U and come into contact with the upper wall 10 of the channel. As a result, the
  • the height H of the shoulder 13 is less than the thickness b of the free end of the thicker flange 6 so that the exposed end surface of the portion 6 may be reached by a pointed tool such as an awl or needle 15, as shown in FIGURE 6, when the end portion 7 can be raised out of engagement with the shoulder for dismantling the ceiling. This is easily done by bending the needle 15 downwardly in the direction of the arrow 16.
  • a false ceiling supported from the permanent structure of a room and comprising a surrounding frame, means securing said frame to said permanent structure, a sheet of plastic foil, and coupling means adapted to hold the edges of said plastic foil to said frame with said foil stretched within said frame;
  • the improved coupling means which comprises upper and lower wall parts of said frame defining a channel therein facing into said room, a shoulder on said lower wall part facing back into said channel, a resilient plastic border of U-shaped cross-section removably located within said channel and extending around the edge of said sheet, said U including a base, a
  • first upper thinner flange and a second lower thicker flange which diverges from said base toward a free edge, means securing said first flange to said edge of said sheet with said base innermost within said channel, and thefree edge of said second flange engaging behind said shoulder whereby said base is held against said upper wall part and said second flange is wedged in said channel in abutment with said shoulder under the tension in said sheet, the thickness of said free edge being greater than the height of said shoulder, whereby said second flange may be disengaged from said shoulder by applying an upward force to said free edge.

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Building Environments (AREA)
  • Connection Of Plates (AREA)
  • Fencing (AREA)
  • Finishing Walls (AREA)
US541239A 1965-04-12 1966-04-08 False ceilings Expired - Lifetime US3405489A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE4744/65A SE309667B (de) 1965-04-12 1965-04-12

Publications (1)

Publication Number Publication Date
US3405489A true US3405489A (en) 1968-10-15

Family

ID=20264880

Family Applications (1)

Application Number Title Priority Date Filing Date
US541239A Expired - Lifetime US3405489A (en) 1965-04-12 1966-04-08 False ceilings

Country Status (13)

Country Link
US (1) US3405489A (de)
AT (1) AT260483B (de)
BE (1) BE679387A (de)
CH (1) CH454409A (de)
DE (2) DE1609365B1 (de)
DK (1) DK113803B (de)
ES (1) ES325396A1 (de)
FR (1) FR1475446A (de)
GB (1) GB1129635A (de)
IL (1) IL25504A (de)
NL (1) NL6604842A (de)
NO (1) NO121112B (de)
SE (1) SE309667B (de)

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3844080A (en) * 1971-09-08 1974-10-29 Ici Ltd Suspended ceiling
US4380140A (en) * 1980-09-25 1983-04-19 Abbott Joseph L Thermal barrier for windows
US5058340A (en) * 1990-03-16 1991-10-22 Muller Jurgen H Custom stretched ceilings
US5155963A (en) * 1991-01-24 1992-10-20 Woodman Richard C Lattice mounting structures
US5157884A (en) * 1988-07-05 1992-10-27 Schwartz Daniel P Solely wall mounted drop ceiling structure
US5385194A (en) * 1993-03-18 1995-01-31 Brown; Ronald M. Fabric panel clean change-out frame
WO1996035591A1 (en) * 1995-05-09 1996-11-14 Bestop, Inc. Removable retainer arrangements for flexible, vehicle tops
US6241305B1 (en) 1996-05-08 2001-06-05 Bestop, Inc. Removable retainer arrangements for flexible, vehicle tops
US6880302B1 (en) 2000-03-20 2005-04-19 Newmat, Sa Elements of stretched false ceiling, use of same for producing false walls and false ceilings
US20090008045A1 (en) * 2006-02-22 2009-01-08 Webasto Ag Shading Device for a Light-Permeable Window, In Particular for Motor Vehicles
US20090297767A1 (en) * 2000-03-20 2009-12-03 Marc Fontaine Flexible sheet materials for tensioned structures, a method of making such materials, and tensioned false ceilings comprising such materials
US20110061320A1 (en) * 2008-01-09 2011-03-17 Normalu System for fixing stretched walls or ceilings by way of a stringer of reduced size

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2552855B2 (fr) * 1983-09-30 1986-05-09 Aarka Procede pour l'utilisation de feuilles de stratifie pour la constitution de parois internes d'habitations, de decors, d'elements d'ameublement et similaires
FR2691193B1 (fr) * 1992-05-13 1994-08-05 Hosteing Guy Profiles pour supporter et maintenir en tension un faux plafond ou un faux mur.
FR2811693B1 (fr) 2000-07-13 2003-02-21 Newmat Sa Profile de lisse d'accrochage d'une nappe tendue, fausse paroi telle que faux-plafond ou faux mur comprenant un tel profile
FR2843141B1 (fr) * 2002-07-30 2006-02-10 Mphi Dispositif de fixation de tentures ou toiles de revetement de plafonds ou muraux, en particulier pour plafonds tendus
FR2912438B1 (fr) * 2007-02-09 2009-05-15 Brevetix Sarl Systeme de fixation de fausses parois non parfaitement tendues
FR2948391B1 (fr) * 2009-07-21 2011-08-19 Normalu Systeme de fixation de fausse paroi au moyen de lisse de taille reduite
FR2948392B1 (fr) * 2009-07-21 2011-07-08 Normalu Systeme de fixation de fausse paroi avec languette renforcee
FR2974827B1 (fr) 2011-05-06 2013-06-07 Newmat Outil d'aide au montage et demontage de nappes de fausses parois tendues
FR3101653B1 (fr) 2019-10-02 2022-02-18 Newmat Element profile pour fausse paroi a toile tendue, fausse paroi comprenant un tel element profile
FR3120884B1 (fr) 2021-03-16 2023-04-14 Newmat Profilé de maintien d’une toile de faux plafond et faux plafond comprenant un tel profilé
FR3140638A1 (fr) 2022-10-05 2024-04-12 Newmat Elément profilé pour dalle à toile tendue et dalle comprenant un tel élément profilé

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1940637A (en) * 1933-07-27 1933-12-19 Fort Pitt Bedding Co Cushion seat and the like
GB986281A (en) * 1960-04-11 1965-03-17 Alfred Plummer Improvements in or relating to seals for sliding windows
US3177501A (en) * 1962-02-12 1965-04-13 John P Kwake Swimming pools and method of installing liners therefor
US3186129A (en) * 1961-11-15 1965-06-01 Isora Illuminating Ceilings Lt Ceilings or walls
US3205628A (en) * 1960-10-18 1965-09-14 Barracudaverken Ab Fixing devices for ceiling forming sheets or foils

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1294901A (fr) * 1961-04-19 1962-06-01 Sous-plafond translucide
FR1319171A (fr) * 1961-11-15 1963-02-22 Isora Illuminating Ceilings Lt Perfectionnements aux plafonds ou murs

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1940637A (en) * 1933-07-27 1933-12-19 Fort Pitt Bedding Co Cushion seat and the like
GB986281A (en) * 1960-04-11 1965-03-17 Alfred Plummer Improvements in or relating to seals for sliding windows
US3205628A (en) * 1960-10-18 1965-09-14 Barracudaverken Ab Fixing devices for ceiling forming sheets or foils
US3186129A (en) * 1961-11-15 1965-06-01 Isora Illuminating Ceilings Lt Ceilings or walls
US3177501A (en) * 1962-02-12 1965-04-13 John P Kwake Swimming pools and method of installing liners therefor

Cited By (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3844080A (en) * 1971-09-08 1974-10-29 Ici Ltd Suspended ceiling
US4380140A (en) * 1980-09-25 1983-04-19 Abbott Joseph L Thermal barrier for windows
US5157884A (en) * 1988-07-05 1992-10-27 Schwartz Daniel P Solely wall mounted drop ceiling structure
US5058340A (en) * 1990-03-16 1991-10-22 Muller Jurgen H Custom stretched ceilings
US5155963A (en) * 1991-01-24 1992-10-20 Woodman Richard C Lattice mounting structures
US5385194A (en) * 1993-03-18 1995-01-31 Brown; Ronald M. Fabric panel clean change-out frame
US5765903A (en) * 1995-05-09 1998-06-16 Bestop, Inc. Removable retainer arrangements for flexible, vehicle tops
US5702147A (en) * 1995-05-09 1997-12-30 Bestop, Inc. Tailgate sealing arrangement
WO1996035591A1 (en) * 1995-05-09 1996-11-14 Bestop, Inc. Removable retainer arrangements for flexible, vehicle tops
US5979968A (en) * 1995-05-09 1999-11-09 Bestop, Inc. Removable retainer arrangements for flexible, vehicle tops
US6286888B1 (en) 1995-05-09 2001-09-11 Bestop, Inc. Removable retainer arrangements for flexible, vehicle tops
US6241305B1 (en) 1996-05-08 2001-06-05 Bestop, Inc. Removable retainer arrangements for flexible, vehicle tops
US6880302B1 (en) 2000-03-20 2005-04-19 Newmat, Sa Elements of stretched false ceiling, use of same for producing false walls and false ceilings
US20090297767A1 (en) * 2000-03-20 2009-12-03 Marc Fontaine Flexible sheet materials for tensioned structures, a method of making such materials, and tensioned false ceilings comprising such materials
US8906486B2 (en) 2000-03-20 2014-12-09 Newmat Sa Flexible sheet materials for tensioned structures, a method of making such materials, and tensioned false ceilings comprising such materials
US20090008045A1 (en) * 2006-02-22 2009-01-08 Webasto Ag Shading Device for a Light-Permeable Window, In Particular for Motor Vehicles
US20110061320A1 (en) * 2008-01-09 2011-03-17 Normalu System for fixing stretched walls or ceilings by way of a stringer of reduced size
US8336266B2 (en) * 2008-01-09 2012-12-25 Normalu System for fixing stretched walls or ceilings by way of a stringer of reduced size

Also Published As

Publication number Publication date
CH454409A (de) 1968-04-15
ES325396A1 (es) 1967-02-16
BE679387A (de) 1966-10-12
NO121112B (de) 1971-01-18
GB1129635A (en) 1968-10-09
NL6604842A (de) 1966-10-13
AT260483B (de) 1968-03-11
IL25504A (en) 1969-12-31
DK113803B (da) 1969-04-28
DE1609365B1 (de) 1971-09-30
DE6600406U (de) 1969-01-16
FR1475446A (fr) 1967-03-31
SE309667B (de) 1969-03-31

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