EP1604078B1 - Méthode de fabrication des dalles de plancher rectangulaires - Google Patents

Méthode de fabrication des dalles de plancher rectangulaires Download PDF

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Publication number
EP1604078B1
EP1604078B1 EP04718776.0A EP04718776A EP1604078B1 EP 1604078 B1 EP1604078 B1 EP 1604078B1 EP 04718776 A EP04718776 A EP 04718776A EP 1604078 B1 EP1604078 B1 EP 1604078B1
Authority
EP
European Patent Office
Prior art keywords
panels
edges
core
joint
long
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
EP04718776.0A
Other languages
German (de)
English (en)
Other versions
EP1604078A1 (fr
Inventor
Hakan Wernersson
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.)
Unilin Nordic AB
Original Assignee
Pergo Europe 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 Pergo Europe AB filed Critical Pergo Europe AB
Publication of EP1604078A1 publication Critical patent/EP1604078A1/fr
Application granted granted Critical
Publication of EP1604078B1 publication Critical patent/EP1604078B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
    • E04F15/00—Flooring
    • E04F15/02—Flooring or floor layers composed of a number of similar elements
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
    • E04F2201/00—Joining sheets or plates or panels
    • E04F2201/01—Joining sheets, plates or panels with edges in abutting relationship
    • E04F2201/0107—Joining sheets, plates or panels with edges in abutting relationship by moving the sheets, plates or panels substantially in their own plane, perpendicular to the abutting edges
    • E04F2201/0115—Joining sheets, plates or panels with edges in abutting relationship by moving the sheets, plates or panels substantially in their own plane, perpendicular to the abutting edges with snap action of the edge connectors
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
    • E04F2201/00—Joining sheets or plates or panels
    • E04F2201/01—Joining sheets, plates or panels with edges in abutting relationship
    • E04F2201/0153—Joining sheets, plates or panels with edges in abutting relationship by rotating the sheets, plates or panels around an axis which is parallel to the abutting edges, possibly combined with a sliding movement
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
    • E04F2201/00—Joining sheets or plates or panels
    • E04F2201/05—Separate connectors or inserts, e.g. pegs, pins, keys or strips
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
    • E04F2201/00—Joining sheets or plates or panels
    • E04F2201/07—Joining sheets or plates or panels with connections using a special adhesive material
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
    • E04F2201/00—Joining sheets or plates or panels
    • E04F2201/08—Joining sheets or plates or panels hook and loop-type fastener or similar fixing means

Definitions

  • the present invention relates to the production of rectangular panels with a panel joint comprising friction enhancing means intended for impeding assembled panels from sliding in a direction along the edges.
  • Prefabricated floor panels provided with tongue and groove at the edges are quite common nowadays. These can be installed by the average handy man as they are very easy to install.
  • Such floors can, for example, be constituted of solid wood, fibre board or particle board. These are most often provided with a surface layer such as lacquer, or some kind of laminate.
  • the panels are most often installed by being glued via tongue and groove.
  • the most common types of tongue and groove are however burdened with the disadvantage to form gaps of varying width between the floor panels in cases where the installer hasn't been thorough enough. Dirt will easily collect in such gaps. Moisture will furthermore enter the gaps which will cause the core to expand in cases where it is made of wood, fibre board or particle board, which usually is the case.
  • These profiles which extends outside the floor panel itself, is provided with an upwards directed lip which fits into grooves on the lower side of a corresponding floor panel. These grooves are arranged on the second short side and long side of this floor panel.
  • the floor panels are furthermore provided with a traditional tongue and groove on the edges. The intentions are that the profiles shall bend downwards and then to snap back into the groove when assembled.
  • the profiles are integrated with the floor panels through folding or alternatively, through gluing.
  • the floor panels may be joined by turning or prizing it into position with the long side edge as a pivot point. It is then necessary to slide the floor panel longitudinally so that it snaps into the floor panel previously installed in the same row. A play is essential in order to achieve that. This play seems to be marked ⁇ in the figures. A tolerance of ⁇ 0.2mm is mentioned in the application. Such a play will naturally cause undesired gaps between the floor panels. Dirt and moisture can penetrate into these gaps.
  • WO 97/47834 It is also known through WO 97/47834 to manufacture a joint where the floor panels are joined by turning or prizing it into position with the long side edge as a pivot point.
  • a traditional tongue has been provided with heel on the lower side.
  • the heel has a counterpart in a recess in the groove of the opposite side of the floor panel.
  • the lower cheek of the groove will be bent away during the assembly and will then snap back when the floor panel is in the correct position.
  • the snap-joining parts i.e. the tongue and groove, is in opposite to the disclosure according to WO 94/26999 above, where they are constituted by separate parts, seems to be manufactured monolithically from the core of the floor panel.
  • WO 97/47834 does also show how the tongue and groove with heels and recesses according to the disclosure is tooled by means of cutting machining.
  • disclosure does also have the disadvantage that the best mode of joining panels includes longitudinal sliding for joining the short sides of the floor panels, which also here will require a play which will cause unwanted gaps between the floor panels. Dirt and moisture can penetrate into these gaps.
  • WO 01/75247 to manufacture a panel having joining members intended for turning assembly on two opposite edges while the remaining edges are provided with joining members which are intended to be joined through vertical motion.
  • WO 01/75247 it has been made possible to achieve a panel where the fit can be made very tight since no sliding motion along two joined edges is needed in order to join the adjacent edge, as is the case with the teachings of WO 97/47834 and WO 94/26999 above. It has shown advantageous to apply the turning type joint on the long side while the vertical assembly type joint is applied on the short sides.
  • the strength of the joint on the short side edges may, in fact, be improved by an improved friction on the long side edge, which will give the designer more room for improvements on assembly properties of the short side joint.
  • the invention relates to a method for producing rectangular panels as defined in appended claim 1, wherein panel joints position and hold panels together via their respective edges in order to form a surface comprising a plurality of said panels assembled together.
  • the edges of said panels are provided with a core and means for mechanically locking said panels towards one another via interacting locking surfaces.
  • Said edges further comprise friction enhancing means intended for impeding assembled panels from sliding in a direction along the edges. This friction enhancing means will show its greatest effect when arranged on the long sides of rectangular panels and will radically reduce the stress on the short side edge joints of these panels. It is according to different embodiments of the invention also possible to arrange the friction enhancing means on other sides of panels as well.
  • the force needed to overcome the static friction along the joint between two assembled panels is larger than 100N per meter of joint length, preferably larger than 1000N per meter of joint length.
  • predetermined surfaces of the long edges of panels are provided with a rough surface.
  • This rough surface is achieved by wetting the predetermined surfaces of the edge with a liquid While the core selected for the manufacturing of the panels is made of a wood based material.
  • the liquid will here cause the fibre of the core to rise.
  • a liquid which comprises a binding agent as for example a lacquer of some kind.
  • predetermined surfaces of the edge is coated with a high friction polymer.
  • This high friction polymer may be a natural rubber or a synthetic rubber.
  • suitable rubber materials can be mentioned; silicon rubber, latex based rubber, ethylene-propylene-diene-terpolymer rubber, ethylene-propylene-copolymer rubber, styrene-butadiene rubber and acrylic co-polymer dispersions.
  • predetermined surfaces of the edge are provided with a rough surface.
  • This rough surface is comprised by particles bonded to the predetermined surfaces of the edges.
  • the particles suitably have a size in the range 50 ⁇ m to 2 mm. It is also suitable if the particles have a higher hardness index than the material of the core.
  • a natural choice of particles for this purpose would be minerals like sand or the like and it is indeed advantageous if the particles are irregular and have sharp edges as more rounded particles could act as a ball bearing.
  • spherical particles are properly forced into the core material during the assembly they might work as well. Irregular particles having sharp edges will in any case require a lower assembly pressure in order to obtain the same friction effect and is therefore preferred.
  • particles made of polymeric materials as long as they have a higher hardness index than the core material.
  • suitable materials can be mentioned; styrene, acrylic, high density polyethylene, polypropylene, polycarbonate, phenolic resins and melamine resins. These materials may also contain fillers like cellulose, talcum or mica.
  • the sharp edges of these polymeric particles are advantageously achieved by grinding and therefore scrap material is a suitable source.
  • Another advantage with polymeric materials is that they won't dull the edges of tools used for cutting the panels having the edges herein described to the same extent mineral particles like sand would.
  • predetermined surfaces of the edges is provided with splines. These splines are arranged at an angle towards the extension of the edge of the panel.
  • a jagged profile is arranged between predetermined surfaces of the edges.
  • This profile may be made of metal, thermoplastic material or of thermosetting material. Like with the particles previously discussed there may be advantages in selecting materials that don't blunt tools used during assembly of the panels. It is however possible to use smaller lengths of jagged edge profiles made of metal which are put into the joints just before the assembly. This way the friction enhancing device can be arranged only at critical locations identified by the installer.
  • the panels produced comprise a core.
  • the core is most often comprised of particles or fibre of wood bonded with resin or glue. It is advantageous to coat the surface closest to the joint in cases where the floor will be exposed to high levels of moisture since the cellulose based material is sensitive to moisture. This coating may suitably incorporate resin, wax or some kind of lacquer.
  • the panels suitably comprises an upper decorative layer which may be constituted of a decorative paper impregnated with melamine-formaldehyde resin.
  • One or more so called overlay sheets of ⁇ -celluloce, impregnated with melamine-formaldehyde resin may possibly be placed on top of the decorative layer.
  • the abrasion resistance may be improved by sprinkling one or more of the sheets with hard particles of for example ⁇ -aluminium oxide, silicon carbide or silicon oxide. It is also possible to coat the upper surface with lacquer or some kind of thermoplastic foil. The lower side may suitably be coated with lacquer or a layer of paper and resin.

Claims (3)

  1. Procédé destiné à la production de panneaux rectangulaires comprenant des grands bords et des petits bords ; dans lequel les grands bords et les petits bords sont conçus pour être joints au moyen de joints ;
    dans lequel les joints positionnent et maintiennent les panneaux ensemble par l'intermédiaire de leurs bords respectifs dans le but de former une surface comprenant un certain nombre desdits panneaux assemblés les uns aux autres ; dans lequel les bords desdits panneaux sont munis d'une partie centrale et de moyens pour le verrouillage par voie mécanique desdits panneaux l'un en direction de l'autre par l'intermédiaire de surfaces de verrouillage entrant en interaction ;
    lesdits grands bords comprennent en outre des moyens qui favorisent la friction, destinés à empêcher le glissement de panneaux assemblés dans une direction le long des bords ;
    dans lequel la force requise pour vaincre la friction statique le long du joint aux grands bords entre deux panneaux assemblés est supérieure à 100N par mètre de longueur de joint, de préférence supérieure à 1000N par mètre de longueur de joint ;
    dans lequel des surfaces prédéterminées des grands bords sont munies d'une surface rugueuse ;
    dans lequel la partie centrale des panneaux est constituée d'une matière à base de bois ; et
    dans lequel la surface rugueuse est obtenue par humidification des surfaces prédéterminées des grands bords avec un liquide pour ainsi obtenir un relèvement des fibres de la partie centrale.
  2. Procédé selon la revendication 1, dans lequel le liquide comprend un agent de liaison.
  3. Procédé selon la revendication 2, dans laquelle l'agent liquide de liaison est une laque.
EP04718776.0A 2003-03-18 2004-03-09 Méthode de fabrication des dalles de plancher rectangulaires Expired - Lifetime EP1604078B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
SE0300741 2003-03-18
SE0300741A SE526691C2 (sv) 2003-03-18 2003-03-18 Panelfog med friktionshöjande medel vid långsidans vridfog
PCT/SE2004/000335 WO2004083557A1 (fr) 2003-03-18 2004-03-09 Joint de plaques

Publications (2)

Publication Number Publication Date
EP1604078A1 EP1604078A1 (fr) 2005-12-14
EP1604078B1 true EP1604078B1 (fr) 2020-08-19

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP04718776.0A Expired - Lifetime EP1604078B1 (fr) 2003-03-18 2004-03-09 Méthode de fabrication des dalles de plancher rectangulaires

Country Status (4)

Country Link
US (1) US20040182033A1 (fr)
EP (1) EP1604078B1 (fr)
SE (1) SE526691C2 (fr)
WO (1) WO2004083557A1 (fr)

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Also Published As

Publication number Publication date
EP1604078A1 (fr) 2005-12-14
WO2004083557A1 (fr) 2004-09-30
US20040182033A1 (en) 2004-09-23
SE0300741D0 (sv) 2003-03-18
SE526691C2 (sv) 2005-10-25
SE0300741L (sv) 2004-09-19

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