US20070094985A1 - Connecting element - Google Patents

Connecting element Download PDF

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Publication number
US20070094985A1
US20070094985A1 US11/533,634 US53363406A US2007094985A1 US 20070094985 A1 US20070094985 A1 US 20070094985A1 US 53363406 A US53363406 A US 53363406A US 2007094985 A1 US2007094985 A1 US 2007094985A1
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US
United States
Prior art keywords
connecting element
groove
tongue
panels
lips
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.)
Abandoned
Application number
US11/533,634
Inventor
Thomas Grafenauer
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.)
Flooring Technologies Ltd
Original Assignee
Flooring Technologies 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 Flooring Technologies Ltd filed Critical Flooring Technologies Ltd
Assigned to FLOORING TECHNOLOGIES LTD. reassignment FLOORING TECHNOLOGIES LTD. ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: GRAFENAUER, THOMAS
Publication of US20070094985A1 publication Critical patent/US20070094985A1/en
Abandoned legal-status Critical Current

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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
    • E04F15/00—Flooring
    • E04F15/02—Flooring or floor layers composed of a number of similar elements
    • E04F15/02005—Construction of joints, e.g. dividing strips
    • E04F15/02022—Construction of joints, e.g. dividing strips with means for aligning the outer surfaces of the flooring 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
    • E04F2201/02—Non-undercut connections, e.g. tongue and groove connections
    • E04F2201/023—Non-undercut connections, e.g. tongue and groove connections with a continuous tongue or groove
    • 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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T403/00—Joints and connections
    • Y10T403/57—Distinct end coupler

Definitions

  • the invention relates to a connecting element for connecting flooring panels with a core of wooden material, in particular MDF or HDF, which is provided with a tongue on one side edge and with a groove on the opposite side edge, and the tongue corresponds to the groove of the panel and the groove corresponds to the tongue of the panel, whereby two lips lying opposite one another are embodied on the top side projecting beyond the side edges.
  • a connecting element for connecting flooring panels is known, e.g., from DE 101 62 275 C1.
  • the connecting element is embodied in a strip-like manner and is connected to the groove of the panel via a tongue or to the tongue of the panel via a groove.
  • the top side of the connecting element is flush with the top side of the panel. It can be shaped differently and in cross section can have convex, concave or V-shaped surface contours.
  • a butt joint results between the panel edge and the edge of the connecting element. Through these butt joints, very narrow vertically directed gaps invisible to the naked eye form between the panel edges and the edges of the connecting element. This fact is a particular drawback, particularly with damp mopping of a floor, since the butt joint acts like a capillary that draws in the moisture between the panel and the connecting element.
  • Flooring panels are mainly composed of wooden materials, such as, e.g., HDF/MDF or OSB. Since moisture can penetrate into the wooden material core of the flooring panels due to the capillary effect, the side edges affected of the panels swell and form an overhang visible in the surface, a so-called “projection”. The quality of the floor is considerable impaired by this projection.
  • the connecting element described at the outset is to be improved such that the swelling of the side edges of connected flooring panels is prevented.
  • a generic connecting element includes two lips lying opposite one another on the top side projecting beyond the side edges are formed.
  • the butt joints forming in the connection of connecting element and flooring panel are overlapped, whereby a waterproof cover is advantageously formed between the adjacent side edges of connecting element and panel.
  • the overlapping lips have sufficient inherent elasticity that forces the outer lip end against the top side of the panel or the top side of the pattern.
  • the top side of the flooring panel is thereby provided with a decorative surface that can imitate a natural material and protects the core material from damage, e.g., by moisture or abrasion.
  • a flocking can be advantageously provided on the underside of the overlapping lips in order to further increase the sealing effect of the lips.
  • the flock fibers are arranged vertically on the support surface, i.e., the underside of the overlapping lips, in order to ensure an improved protection from the penetration of moisture into the connection from above via a correspondingly dense arrangement of fibers per unit area.
  • the connecting elements can be produced from a material mixture of wood fibers and plastic. In this manner, cost-effective connecting elements can be produced that have wood-like properties due to the proportion of wood fibers.
  • the connecting elements can be produced as an extrusion profile in a continuous operation, whereby expediently the flocking of the underside of the overlapping lips likewise takes place in a continuous operation, utilizing the thermal energy inherent in the connecting element at the end of the extrusion.
  • a separate adhesive layer for the deep connection of the connecting element and flocking fiber can thus be omitted.
  • the connecting elements can also be made entirely of plastic. Color pigments can be added to the material of the connecting elements in order to color the connecting element and thus to adapt it accordingly to different requirements regarding the pattern of the panels.
  • the lips are preferably embodied to be elastically resilient so that the best possible seal of the butt joints between the connecting element and panels can be achieved.
  • Mechanical locking mechanisms can be provided in the area of the groove and the tongue of the connecting element and in the corresponding areas of the groove and the tongues of the panels, which locking mechanisms lock connected panels in the transverse direction without it being necessary to add glue to the grooves or tongues. In this manner, a particularly easy and quick laying of the floor panels and the connecting elements can be achieved.
  • a clamp preferably of metal, can be extruded into the connecting element to increase the spring force, which clamp can be curved such that it essentially corresponds to the circumferential contour of the groove.
  • FIG. 1 shows two flooring panels connected to one another via a connecting element at the joint in partial view
  • FIG. 2 shows a sectional enlargement from FIG. 1 with a projecting lip
  • FIG. 3 shows two flooring panels connected to one another via another connection element at the joint in partial view.
  • the flooring panels 1 , 2 comprise a medium-density or highly compacted fiber board, e.g., MDF or HDF.
  • a decorative layer 11 that can be formed, e.g., by a paper layer imitating a wood grain or a natural stone surface or a corresponding direct printing that is covered with a synthetic resin layer serving as wear protection.
  • Each panel 1 , 2 is provided with a tongue 3 and a groove 4 on the side edges I, II, lying opposite one another. The tongue 3 corresponds to the groove 4 in the opposite side.
  • the panel 2 is provided with a locking mechanism 6 that interacts with a locking mechanism 5 provided on the underside of the tongue 3 of the panel 1 , and the connected panels 1 , 2 can engage with one another so that the connected panels 1 , 2 are locked crosswise to the connection direction.
  • the connecting element 7 is provided, that is embodied in a strip-like manner and has a groove 4 a or a tongue 3 a on the side edges Ia, IIa.
  • the tongue 3 a is provided on its underside with a locking mechanism 5 a.
  • the groove 4 a has a locking mechanism 6 a in the lower area.
  • the embodiment of the tongue 3 a with its locking mechanism 5 a and the embodiment of the groove 4 a with its locking mechanism 6 a of the connecting element 7 corresponds to the embodiment of the tongue 3 with its locking mechanism 5 or the groove 4 with its locking mechanism 6 of the panels 1 , 2 .
  • the connecting element 7 thus adapts seamlessly to the connection of two panels 1 , 2 .
  • One lip 9 each is embodied on the top side 10 of the connecting element 7 in the area of the side edges Ia, IIa, which lips bear on the top side 8 of the panels 1 , 2 and overlap the butt joint between the panels 1 , 2 and the connecting element 7 , in order to thus prevent the penetration of moisture into the butt joint between flooring panel 2 and connecting element 7 .
  • the lips 9 On the underside 9 a, the lips 9 have a flocking with flock fibers that are arranged vertically on the underside 9 a of the overlapping lips 9 and form a dense arrangement of fibers per unit area and thus provide an improved protection against the penetration of moisture from above into the wooden material core of the flooring panel 1 or 2 .
  • FIG. 3 shows another exemplary embodiment of a connecting element 7 that is provided with an integrated metal clamp 12 .
  • This metal clamp 12 is embedded in the plastic during extrusion and is used to increase the spring force of the connecting element 7 .
  • the clamp 12 is curved such that it essentially corresponds to the enlarged circumferential contour of the groove 4 a or the tongue 3 .

Abstract

A connecting element for connecting flooring panels with a core of wooden material, in particular MDF or HDF, which is provided with a tongue on one side edge and with a groove on the opposite side edge, and the tongue corresponds to the groove of the panel and the groove corresponds to the tongue of the panel, whereby two lips lying opposite one another are embodied on the top side projecting beyond the side edges.

Description

    BACKGROUND OF THE INVENTION
  • 1. Field of the Invention
  • The invention relates to a connecting element for connecting flooring panels with a core of wooden material, in particular MDF or HDF, which is provided with a tongue on one side edge and with a groove on the opposite side edge, and the tongue corresponds to the groove of the panel and the groove corresponds to the tongue of the panel, whereby two lips lying opposite one another are embodied on the top side projecting beyond the side edges.
  • 2. Discussion of Background Information
  • A connecting element for connecting flooring panels is known, e.g., from DE 101 62 275 C1. The connecting element is embodied in a strip-like manner and is connected to the groove of the panel via a tongue or to the tongue of the panel via a groove.
  • The top side of the connecting element is flush with the top side of the panel. It can be shaped differently and in cross section can have convex, concave or V-shaped surface contours. In the connection of connecting element and flooring panel, a butt joint results between the panel edge and the edge of the connecting element. Through these butt joints, very narrow vertically directed gaps invisible to the naked eye form between the panel edges and the edges of the connecting element. This fact is a particular drawback, particularly with damp mopping of a floor, since the butt joint acts like a capillary that draws in the moisture between the panel and the connecting element.
  • Flooring panels are mainly composed of wooden materials, such as, e.g., HDF/MDF or OSB. Since moisture can penetrate into the wooden material core of the flooring panels due to the capillary effect, the side edges affected of the panels swell and form an overhang visible in the surface, a so-called “projection”. The quality of the floor is considerable impaired by this projection.
    • SUMMARY OF THE INVENTION
  • On the basis of this problem, the connecting element described at the outset is to be improved such that the swelling of the side edges of connected flooring panels is prevented.
  • To solve the problem a generic connecting element includes two lips lying opposite one another on the top side projecting beyond the side edges are formed.
  • Through this embodiment the butt joints forming in the connection of connecting element and flooring panel are overlapped, whereby a waterproof cover is advantageously formed between the adjacent side edges of connecting element and panel. To ensure the waterproofness, the overlapping lips have sufficient inherent elasticity that forces the outer lip end against the top side of the panel or the top side of the pattern. The top side of the flooring panel is thereby provided with a decorative surface that can imitate a natural material and protects the core material from damage, e.g., by moisture or abrasion.
  • A flocking can be advantageously provided on the underside of the overlapping lips in order to further increase the sealing effect of the lips. Advantageously, the flock fibers are arranged vertically on the support surface, i.e., the underside of the overlapping lips, in order to ensure an improved protection from the penetration of moisture into the connection from above via a correspondingly dense arrangement of fibers per unit area.
  • The connecting elements can be produced from a material mixture of wood fibers and plastic. In this manner, cost-effective connecting elements can be produced that have wood-like properties due to the proportion of wood fibers. The connecting elements can be produced as an extrusion profile in a continuous operation, whereby expediently the flocking of the underside of the overlapping lips likewise takes place in a continuous operation, utilizing the thermal energy inherent in the connecting element at the end of the extrusion. A separate adhesive layer for the deep connection of the connecting element and flocking fiber can thus be omitted. Preferably the connecting elements can also be made entirely of plastic. Color pigments can be added to the material of the connecting elements in order to color the connecting element and thus to adapt it accordingly to different requirements regarding the pattern of the panels.
  • The lips are preferably embodied to be elastically resilient so that the best possible seal of the butt joints between the connecting element and panels can be achieved. To this end, it is necessary in the connection of two panels for the lips to bear on the top side of the panels in a sealing manner. In this manner, water can be prevented from penetrating into the butt joints between the connecting element and panels during the damp mopping of the floor thus leading to a swelling of the floor and to projections.
  • Mechanical locking mechanisms can be provided in the area of the groove and the tongue of the connecting element and in the corresponding areas of the groove and the tongues of the panels, which locking mechanisms lock connected panels in the transverse direction without it being necessary to add glue to the grooves or tongues. In this manner, a particularly easy and quick laying of the floor panels and the connecting elements can be achieved.
  • A clamp, preferably of metal, can be extruded into the connecting element to increase the spring force, which clamp can be curved such that it essentially corresponds to the circumferential contour of the groove.
    • BRIEF DESCRIPTION OF THE DRAWINGS
  • Exemplary embodiments of the invention are explained below in more detail with the aid of a drawing. They show:
  • FIG. 1 shows two flooring panels connected to one another via a connecting element at the joint in partial view;
  • FIG. 2 shows a sectional enlargement from FIG. 1 with a projecting lip; and
  • FIG. 3 shows two flooring panels connected to one another via another connection element at the joint in partial view.
    • DETAILED DESCRIPTION OF THE PRESENT INVENTION
  • The flooring panels 1, 2 comprise a medium-density or highly compacted fiber board, e.g., MDF or HDF. On their top side 8 they are provided with a decorative layer 11 that can be formed, e.g., by a paper layer imitating a wood grain or a natural stone surface or a corresponding direct printing that is covered with a synthetic resin layer serving as wear protection. Each panel 1, 2 is provided with a tongue 3 and a groove 4 on the side edges I, II, lying opposite one another. The tongue 3 corresponds to the groove 4 in the opposite side. In the area of the groove 4, the panel 2 is provided with a locking mechanism 6 that interacts with a locking mechanism 5 provided on the underside of the tongue 3 of the panel 1, and the connected panels 1, 2 can engage with one another so that the connected panels 1, 2 are locked crosswise to the connection direction.
  • If a visible joint, e.g., a face joint, is to be produced on the top side 8 of the flooring panels between two panels 1, 2, the connecting element 7 is provided, that is embodied in a strip-like manner and has a groove 4 a or a tongue 3 a on the side edges Ia, IIa. The tongue 3 a is provided on its underside with a locking mechanism 5 a. The groove 4 a has a locking mechanism 6 a in the lower area. The embodiment of the tongue 3 a with its locking mechanism 5 a and the embodiment of the groove 4 a with its locking mechanism 6 a of the connecting element 7 corresponds to the embodiment of the tongue 3 with its locking mechanism 5 or the groove 4 with its locking mechanism 6 of the panels 1, 2. The connecting element 7 thus adapts seamlessly to the connection of two panels 1, 2.
  • One lip 9 each is embodied on the top side 10 of the connecting element 7 in the area of the side edges Ia, IIa, which lips bear on the top side 8 of the panels 1, 2 and overlap the butt joint between the panels 1, 2 and the connecting element 7, in order to thus prevent the penetration of moisture into the butt joint between flooring panel 2 and connecting element 7. On the underside 9 a, the lips 9 have a flocking with flock fibers that are arranged vertically on the underside 9 a of the overlapping lips 9 and form a dense arrangement of fibers per unit area and thus provide an improved protection against the penetration of moisture from above into the wooden material core of the flooring panel 1 or 2.
  • FIG. 3 shows another exemplary embodiment of a connecting element 7 that is provided with an integrated metal clamp 12. This metal clamp 12 is embedded in the plastic during extrusion and is used to increase the spring force of the connecting element 7. The clamp 12 is curved such that it essentially corresponds to the enlarged circumferential contour of the groove 4 a or the tongue 3.

Claims (20)

1. A connecting element for connecting flooring panels with a core of wooden material, comprising a tongue on one side edge and a groove on an opposite side edge, wherein the tongue corresponds to a groove of a panel and the groove corresponds to a tongue of the panel, and two lips lying opposite one another embodied on a top side projecting beyond the one side edge and the opposite side edge.
2. The connecting element according to claim 1, wherein the lips are elastically resilient.
3. The connecting element according to claim 1, wherein in the connection of two panels the lips are structured and arranged to bear on a top side of the panels in a sealing manner.
4. The connecting element according to claim 3, wherein the lips have a flocking on an underside.
5. The connecting element according to claim 1, wherein the connecting element comprises a mixture of wood fibers and plastic.
6. The connecting element according to claim 1, wherein the connecting element comprises plastic.
7. The connecting element according to claim 1, further comprising locking means in an area of the groove and the tongue of the connecting element that correspond to locking means of the tongue and the groove of the panel.
8. The connecting element according to claim 1, further comprising an inserted clamp.
9. The connecting element according to claim 8, wherein the clamp is curved and extends over an entire length of the connecting element.
10. The connecting element according to claim 9, wherein the clamp essentially corresponds to an enlarged circumferential contour of the groove of the connecting element.
11. The connecting element according to claim 8, wherein the clamp is of metal.
12. The connecting element according to claim 1, wherein the core of wood material is one of MDF and HDF.
13. The connecting element according to claim 1, further comprising a flocking comprising flock fibers arranged vertically on an underside of the lips.
14. The connecting element of claim 8, wherein the clamp is integrated into the connecting element.
15. A system, comprising:
at least one flooring panels with a decorative layer top layer, the at least one flooring panels comprising a tongue and a groove on side edges lying opposite one another; and
a connecting element comprising a groove and a tongue on side edges corresponding to the tongue and the groove of the at least one flooring panels, the connecting element further comprising, in an area of the side edges, lips configured to bear on a top side of the at least one panels and overlap a butt joint between the panels and the connecting element.
16. The system according to claim 15, wherein the connecting element comprising a flocking on an underside thereof.
17. The system according to claim 16, wherein the flocking comprises flock fibers that are arranged vertically on the underside of the lips.
18. The system according to claim 16, further comprising a clamp integrated with the connecting element.
19. The system according to claim 16, wherein the clamp is metal and the connecting element is plastic.
20. The system according to claim 18, wherein the clamp is curved such that it essentially corresponds to an enlarged circumferential contour of the groove or the tongue of the connecting element.
US11/533,634 2005-09-22 2006-09-20 Connecting element Abandoned US20070094985A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102005045261A DE102005045261B3 (en) 2005-09-22 2005-09-22 connecting element
DE102005045261.2 2005-09-22

Publications (1)

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US20070094985A1 true US20070094985A1 (en) 2007-05-03

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EP (1) EP1767724B1 (en)
AT (1) ATE426713T1 (en)
DE (2) DE102005045261B3 (en)
PL (1) PL1767724T3 (en)

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US20150152651A1 (en) * 2010-09-23 2015-06-04 Flooring Technologies Ltd Method for producing panels and panel produced according to the method
US9624677B2 (en) 2012-07-05 2017-04-18 Pergo (Europe) Ab Joint devices, systems, and methods for exterior flooring
US20170254096A1 (en) * 2011-07-11 2017-09-07 Ceraloc Innovation Ab Mechanical locking system for floor panels
US9949563B2 (en) 2012-06-16 2018-04-24 Stact Wine Displays Inc. Bottle rack and kit for bottle-supporting assembly
US10004330B1 (en) * 2016-12-23 2018-06-26 Stact Wine Displays Inc. Bottle rack
USD821831S1 (en) 2015-03-24 2018-07-03 Stact Wine Displays Inc. Bottle rack
USD834900S1 (en) 2017-01-04 2018-12-04 Stact Wine Displays Inc. Bottle rack
USD848802S1 (en) 2017-01-04 2019-05-21 Stact Wine Displays Inc. Bottle rack
USD878828S1 (en) 2017-11-13 2020-03-24 Stact Wine Displays Inc. Bottle rack
US10669723B2 (en) 2006-07-11 2020-06-02 Valinge Innovation Ab Mechanical locking of floor panels with a flexible bristle tongue
US10731358B2 (en) 2014-11-27 2020-08-04 Valinge Innovation Ab Mechanical locking system for floor panels
US10941606B1 (en) 2018-09-06 2021-03-09 Endura Products, Llc Connector system, apparatus and methods for a door frame assembly
US10968639B2 (en) 2011-08-15 2021-04-06 Ceraloc Innovation Ab Mechanical locking system for floor panels
USD923987S1 (en) 2017-11-13 2021-07-06 Stact Wine Displays Inc. Bottle racks
US11053691B2 (en) 2006-11-15 2021-07-06 Valinge Innovation Ab Mechanical locking of floor panels with vertical folding
US11060302B2 (en) 2019-01-10 2021-07-13 Valinge Innovation Ab Unlocking system for panels
US11066835B2 (en) 2013-06-27 2021-07-20 Valinge Innovation Ab Building panel with a mechanical locking system
US11131099B2 (en) 2006-12-08 2021-09-28 Valinge Innovation Ab Mechanical locking of floor panels
US11725394B2 (en) 2006-11-15 2023-08-15 Välinge Innovation AB Mechanical locking of floor panels with vertical folding

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ATE426713T1 (en) 2009-04-15
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DE502006003240D1 (en) 2009-05-07
DE102005045261B3 (en) 2007-05-03

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