EP0761135B1 - Verwendung von Hohlkammerplatten aus Acrylglas - Google Patents

Verwendung von Hohlkammerplatten aus Acrylglas Download PDF

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Publication number
EP0761135B1
EP0761135B1 EP96113665A EP96113665A EP0761135B1 EP 0761135 B1 EP0761135 B1 EP 0761135B1 EP 96113665 A EP96113665 A EP 96113665A EP 96113665 A EP96113665 A EP 96113665A EP 0761135 B1 EP0761135 B1 EP 0761135B1
Authority
EP
European Patent Office
Prior art keywords
webs
panels
thickness
acrylic glass
furniture
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
EP96113665A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0761135A1 (de
Inventor
Klaus Oberländer
Norbert Dr. Brand
Dieter Bettinger
Friedhelm Rinkenberger
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.)
ROEHM G.M.B.H. & CO. K.G.
Original Assignee
Agomer GmbH
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 Agomer GmbH filed Critical Agomer GmbH
Publication of EP0761135A1 publication Critical patent/EP0761135A1/de
Application granted granted Critical
Publication of EP0761135B1 publication Critical patent/EP0761135B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47B—TABLES; DESKS; OFFICE FURNITURE; CABINETS; DRAWERS; GENERAL DETAILS OF FURNITURE
    • A47B96/00—Details of cabinets, racks or shelf units not covered by a single one of groups A47B43/00 - A47B95/00; General details of furniture
    • A47B96/20—Furniture panels or like furniture elements

Definitions

  • the invention discloses a novel use per se well-known twin-wall sheets made of acrylic glass.
  • Twin-wall sheets made of thermoplastic materials in a transparent version for almost 25 years now Glazing in commercial and private areas used.
  • twin-wall sheets consist of two or more belt plates with intermediate ones Vertical and / or diagonal bars. This structure gives the panels have high rigidity with low weight and good thermal insulation properties. Based on these Properties as well as the high light transmission and Find weather resistance with good fire behavior
  • Twin-wall sheets preferably made from the Polymethyl methacrylate, polycarbonate or plastics Polyvinyl chloride, usually used in commercial Area, e.g. B. for greenhouses, industrial and Sports halls, and in the private sector, e.g. B. for pergolas, Terrace canopies and winter gardens.
  • Twin-wall sheets are made by extrusion using a Cross section of the corresponding tool by simultaneous Education of the outer and middle layers (outer and Middle belts) and the webs. After the exit of the The outer belts become hollow strands from the extrusion die when passing through a vacuum forming channel (calibration) cooled below the softening temperature.
  • the Middle layers and webs remain thermoplastic longer than the outer layers. Since they are not supported, the middle classes tend to be horizontal Extrusion for sagging between the webs. This Effect can be reduced if the middle layers are very run thin, because then less heat to Below the softening temperature, and if you extrude very slowly.
  • Double-wall / triple-wall plate in which the webs in regular distances to each other perpendicular to the Plate level run, so that the image of lined up rectangular chambers.
  • the webs form with the plates an angle of approximately 45 °, which is due to improved Transfer of shear forces to lower stresses and to a higher rigidity, with a similar basis weight, leads.
  • Inclined multi-wall sheets are known for polycarbonate become (EP-A-0 530 545), in which two in the given Distance parallel plates through both inclined webs and perpendicular ones Vertical webs are connected.
  • the inclined web multiple plate made of polycarbonate have a sufficient load capacity, since the buckling is shifted beyond the maximum load, which is defined so that the deflection at a load of 750 N / m 2 is not more than 5%, based on the width of the plate.
  • EP-A-0 286 003 has made known a multi-wall sheet which, compared to, for example, three-wall sheets, has a k-value of in reduced by 30% about 1.8 W / m 2 K.
  • the plate presented in EP-A-0 286 003 has not established itself on the market.
  • EP-A-0 109 388 describes the use of a Composite plate known that a multi-wall sheet made of plastic contains, in which at least two continuous plates are connected by webs, the Web plate on at least one of its two sides with a hardening layer made of plastic material the web plate is connected to different plastics, that between the web plate and the hardening layer especially an adhesion-promoting compensation layer is provided and that the cavities in the web plate may are foamed with a plastic foam.
  • the one shown Composite panel is used to manufacture curved panels, especially for glass domes u. Like., by deformation in the heat or to produce curved, preferably with Molded articles coated with textile material by deformation in who uses heat.
  • twin-wall sheets form Acrylic glass excellent as a replacement for wood-based panels, especially MDF boards, suitable for furniture production.
  • hollow chamber panels made of acrylic glass can be used according to the invention used both as front parts and as a body will.
  • the MDF board usually consists of Lignocellulosic fibers and a synthetic binder and has the advantage that it has a high stability with a relatively easy to process.
  • the MDF board must either be high gloss lacquered or glued with a high-gloss veneer.
  • Other decors and surface structures are made by Application of printed and / or embossed foils, mostly made of PVC, or by high pressure laminated paper.
  • the core of the MDF board is by coating or Painting then relatively permanent and the surface can also be scratch-resistant, the necessary for this
  • materials make disposal or recycling difficult the composite body considerably, yes make it without previous Separation of the components almost impossible.
  • the unmixed Separation is too high, if at all possible Cost associated and therefore not practical.
  • a material that is known to combine surfaces with the highest gloss as well as 100 percent recyclability is cast or extruded acrylic glass.
  • This material in the form of cast acrylic glass plates when creating furniture fronts that meet the requirement profile: "high-gloss surface and complete recyclability", but acceptance on the market has so far been rather low.
  • Solid acrylic glass can satisfy the demands for complacency and high-gloss surface as well as for complete reusability without the dreaded effect of "downcycling”, but it is very heavy and expensive in massive execution and so far mostly only for sample pieces, but not for mass production of parts suitable for the furniture industry, especially furniture fronts.
  • the advantage of acrylic glass is that it is insensitive to moisture.
  • the plates of the invention a clear one Weight saving compared to a massive embodiment provide while the surface of the acrylic glass high gloss or any decor to please Appearance of the entire plate can provide.
  • Acrylic glass known as twin-wall sheet geometries Furniture plates can be used. So plates with two, three or four belts with vertical bars or sloping bars or combinations thereof.
  • the at least two belts as well as these below Forming spacing webs from adjacent hollow chambers have, the terminal webs of the edge Chambers are reinforced.
  • the terminal webs of the edge Chambers are reinforced.
  • the thickness of the straps is generally not critical.
  • the Thickness should, however, be sufficiently large, on the one hand sufficient overall stability of the twin-wall sheet guarantee, and on the other hand, a flatness of the entire plate can be reached. Is the thickness of the straps too low, so arise in the manufacturing process Double wall plate fluctuations in thickness, especially in the areas of the bridges, which if possible are to be avoided. Hollow chamber panels are therefore preferred made of acrylic glass as a replacement for MDF boards in the Furniture manufacturing uses the thickness of the straps is between approx. 2 and 6 mm. Is the thickness of the straps over 6 mm, so the components as furniture fronts are already closed heavy, while at a thickness below 2 mm, like mentioned a u. U. insufficient stabilization of the Belt thickness in the area of the webs is reached.
  • the strength or thickness of the terminal webs Hollow chamber panels to be used according to the invention is in Regarding the thickness of the straps preferably to be chosen so that the thickness of the terminal webs of the marginal chambers the twin-wall sheet is equal to or greater than the thickness of the straps, especially as that of the strongest strap.
  • twin-wall sheets with vertical webs for the use according to the invention is sufficient and special prefers. Furthermore, that is particularly preferred Use of a twin-wall sheet in the form of a Inclined slab double plate or a truss plate is.
  • twin-wall sheets made of acrylic glass preferably used according to the invention as furniture fronts.
  • Such fronts are with all standard materials can be combined. So the front can be made from a twin-wall sheet consist, while the body of wood-based panels is made.
  • the acrylic hollow chamber panels can do just as well for the production of carcasses, i.e. for the production of the massive, the actual shape of the furniture Partly, are used.
  • This embodiment has the Advantage particularly easy with sufficient stability be.
  • the fronts can also go out Acrylic double-wall sheets also from another Material.
  • the acrylic hollow chamber panels are preferred Creation of pieces of furniture or entire furniture systems suitable, which consist entirely of acrylic glass. Possible in this context is the combination with partial or completely solid sheets made of cast acrylic glass.
  • the body made of solid acrylic glass is useful during the front or door is made of cellular sheet material.
  • Fronts and carcasses can be used to manufacture furniture made of twin-wall sheets, if necessary in combination with massive acrylic glass parts or other materials are processed in a manner known per se. So one can Front in the form of a twin-wall sheet with any Body (hollow panel made of acrylic glass, solid acrylic glass, Wood-based panels, MDF panels etc.) z. B. by so-called pot hinges or pot hinges can be connected. To fasten these connecting elements - as by known other conventional furniture materials - corresponding openings in a belt of the twin-wall sheet introduced, for example by drilling or milling. It should be emphasized that the strength of the Hollow wall panels with a belt thickness of 2 to 6 mm without further to accommodate when using the furniture elements occurring forces is sufficient.
  • the twin-wall sheets to be used according to the invention become advantageous through continuous extrusion produced.
  • the Exit nozzle profile for the manufacture of the plate extruder used can be any lattice or truss-like arrangement of the webs (Stiffening partitions) can be obtained that the Hollow plate profile not only in the longitudinal direction, but also also in its width with relatively little material give a high moment of resistance, even with relatively low overall profile height.
  • the web distances are generally free selectable, since the webs are essentially used as spacers serve between the individual belts.
  • the Bar spacing is preferred for use as a furniture element, which correspond approximately to the entire plate thickness.
  • the figure shows a schematic, partially broken away cross section with a hollow plate profile vertical stiffening bars.
  • reference numeral 1 means a replacement of wood-based panels, preferably MDF, in the Hollow wall panel to be used for furniture manufacturing.
  • the Hollow chamber panel is made of acrylic glass. The cut took place transversely to the longitudinal direction of the plate 1.
  • the plate 1 has so-called belts 2a, 2b, which in are arranged substantially plane-parallel to each other.
  • the Belts 2a, 2b are made up of essentially vertical webs 3a, 3b spaced. Belts 2a, 2b and webs 3a, 3b are integrally formed with each other. Two adjacent ones Bridges 3a, 3a or 3a, 3b form with the upper belt 2a and a hollow chamber 4a, 4b from the lower belt 2b.
  • the chambers 4a, 4b run parallel and parallel to one another to each other in the longitudinal direction of the plate 1. If a chamber has only a single immediately adjacent chamber, then it is an edge-side chamber 4b.
  • the edge-side chambers 4b are of webs 3a and each limited to a terminal web 3b. It can be seen that the Thickness of the webs 3b is greater than the thickness of the webs 3a, the thickness of the webs 3b roughly the thickness of the straps 2a or 2b.

Landscapes

  • Laminated Bodies (AREA)
  • Joining Of Glass To Other Materials (AREA)
  • Panels For Use In Building Construction (AREA)
EP96113665A 1995-09-07 1996-08-27 Verwendung von Hohlkammerplatten aus Acrylglas Expired - Lifetime EP0761135B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19533015A DE19533015A1 (de) 1995-09-07 1995-09-07 Verwendung von Hohlkammerplatten aus Acrylglas
DE19533015 1995-09-07

Publications (2)

Publication Number Publication Date
EP0761135A1 EP0761135A1 (de) 1997-03-12
EP0761135B1 true EP0761135B1 (de) 1998-11-04

Family

ID=7771485

Family Applications (1)

Application Number Title Priority Date Filing Date
EP96113665A Expired - Lifetime EP0761135B1 (de) 1995-09-07 1996-08-27 Verwendung von Hohlkammerplatten aus Acrylglas

Country Status (3)

Country Link
EP (1) EP0761135B1 (un)
AT (1) ATE172854T1 (un)
DE (2) DE19533015A1 (un)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2012027764A1 (de) 2010-08-31 2012-03-08 Senoplast Klepsch & Co. Gmbh Mehrlagige körper, umfassend eine substratlage und eine kunststofflage

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19738571B4 (de) * 1997-09-04 2004-02-05 Goldbach Raumconcept Gmbh Schrankwand
DE29718924U1 (de) * 1997-10-24 1998-02-26 Jahn Holger Schrank

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH384831A (de) * 1960-09-14 1965-05-31 Altherr Alfred Hohlkammerplatte
DE2737092A1 (de) * 1977-08-17 1979-03-01 Gert Brinckmann Gehaeuse fuer fernseh- und rundfunkgeraete und dergleichen
AU8532191A (en) * 1990-09-04 1992-03-30 Jean-Paul Dessimond Modular element system
DE9404843U1 (de) * 1994-03-22 1995-07-27 Degussa Vollständig recyclierbarer Verbundkörper, insbesondere zur Herstellung von Möbelplatten

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2012027764A1 (de) 2010-08-31 2012-03-08 Senoplast Klepsch & Co. Gmbh Mehrlagige körper, umfassend eine substratlage und eine kunststofflage
EP2611604B1 (de) 2010-08-31 2018-04-18 Senoplast Klepsch & Co. GmbH Mehrlagige körper, umfassend eine substratlage und eine kunststofflage

Also Published As

Publication number Publication date
EP0761135A1 (de) 1997-03-12
DE59600767D1 (de) 1998-12-10
DE19533015A1 (de) 1997-03-13
ATE172854T1 (de) 1998-11-15

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