USRE47496E1 - Panel - Google Patents

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Publication number
USRE47496E1
USRE47496E1 US15/944,141 US201115944141A USRE47496E US RE47496 E1 USRE47496 E1 US RE47496E1 US 201115944141 A US201115944141 A US 201115944141A US RE47496 E USRE47496 E US RE47496E
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United States
Prior art keywords
hook
arresting
receiving
locking
contour
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US15/944,141
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English (en)
Inventor
Hans-Juergen Hannig
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Akzenta Paneele and Profile GmbH
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Akzenta Paneele and Profile GmbH
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Application filed by Akzenta Paneele and Profile GmbH filed Critical Akzenta Paneele and Profile GmbH
Priority to US15/944,141 priority Critical patent/USRE47496E1/en
Assigned to AKZENTA PANEELE + PROFILE GMBH reassignment AKZENTA PANEELE + PROFILE GMBH ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: HANNIG, HANS-JUERGEN
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Classifications

    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C2/00—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels
    • E04C2/30—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by the shape or structure
    • E04C2/38—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by the shape or structure with attached ribs, flanges, or the like, e.g. framed panels
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10L—FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
    • C10L11/00—Manufacture of firelighters
    • C10L11/04—Manufacture of firelighters consisting of combustible material
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10L—FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
    • C10L11/00—Manufacture of firelighters
    • C10L11/06—Manufacture of firelighters of a special shape
    • 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
    • E04F13/07—Coverings or linings, e.g. for walls or ceilings composed of covering or lining elements; Sub-structures therefor; Fastening means therefor
    • E04F13/08—Coverings or linings, e.g. for walls or ceilings composed of covering or lining elements; Sub-structures therefor; Fastening means therefor composed of a plurality of similar covering or lining elements
    • E04F13/0889—Coverings or linings, e.g. for walls or ceilings composed of covering or lining elements; Sub-structures therefor; Fastening means therefor composed of a plurality of similar covering or lining elements characterised by the joints between neighbouring elements, e.g. with joint fillings or with tongue and groove connections
    • E04F13/0894—Coverings or linings, e.g. for walls or ceilings composed of covering or lining elements; Sub-structures therefor; Fastening means therefor composed of a plurality of similar covering or lining elements characterised by the joints between neighbouring elements, e.g. with joint fillings or with tongue and groove connections with tongue and groove connections
    • 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
    • E04F15/02038—Flooring or floor layers composed of a number of similar elements characterised by tongue and groove connections between neighbouring flooring 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
    • E04F15/10—Flooring or floor layers composed of a number of similar elements of other materials, e.g. fibrous or chipped materials, organic plastics, magnesite tiles, hardboard, or with a top layer of other materials
    • 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
    • E04F15/10—Flooring or floor layers composed of a number of similar elements of other materials, e.g. fibrous or chipped materials, organic plastics, magnesite tiles, hardboard, or with a top layer of other materials
    • E04F15/105—Flooring or floor layers composed of a number of similar elements of other materials, e.g. fibrous or chipped materials, organic plastics, magnesite tiles, hardboard, or with a top layer of other materials of organic plastics with or without reinforcements or filling materials
    • 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
    • E04F2201/0138—Joining sheets, plates or panels with edges in abutting relationship by moving the sheets, plates or panels perpendicular to the main plane
    • E04F2201/0146—Joining sheets, plates or panels with edges in abutting relationship by moving the sheets, plates or panels perpendicular to the main plane 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
    • E04F2201/01—Joining sheets, plates or panels with edges in abutting relationship
    • E04F2201/0169—Joining sheets, plates or panels with edges in abutting relationship by rotating the sheets, plates or panels around an axis which is perpendicular to the abutting edges and parallel to the main plane, possibly combined with a sliding movement
    • E04F2201/0176—Joining sheets, plates or panels with edges in abutting relationship by rotating the sheets, plates or panels around an axis which is perpendicular to the abutting edges and parallel to the main plane, possibly combined with a sliding movement 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
    • E04F2201/03—Undercut connections, e.g. using undercut tongues or grooves
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
    • E04F2201/00—Joining sheets or plates or panels
    • E04F2201/04—Other details of tongues or grooves
    • E04F2201/041—Tongues or grooves with slits or cuts for expansion or flexibility

Definitions

  • the invention concerns a panel, in particular a floor panel, comprising a body with at least one plastic layer, complementary locking means provided in pairs at mutually opposite panel edges so that a plurality of said panels can be locked together, at least one pair of locking means with hook profiles, namely a receiving hook and in opposite relationship thereto an arresting hook, with the proviso that the receiving hook has remote from the body a hook edge and arranged nearer to the body a receiving recess, wherein the receiving recess is open towards the top side, the arresting hook is provided with an arresting recess arranged nearer to the body and open to the underside and has an arresting step which is arranged remote from the body and which fits in a vertical joining direction into the receiving recess of the receiving hook, the arresting hook has a joining surface remote from the body and also remote from the body a vertically acting arresting contour, the receiving hook has a joining surface nearer to the body and also nearer to the body a positively locking contour which fits together in positively locking relationship with the arresting contour, that
  • a panel of the general kind set forth, for floors, is known from WO 2010/015516.
  • the hook profiles of the known panels are adapted to the material from which the body of the panel is formed. Those panels which have a body comprising a flexurally soft and elastic plastic material can be hooked.
  • the arresting contour provided beneath the joining surface of the arresting hook has regions which project with respect to the plane of the joining surface and other regions which are set back with respect to the plane of the joining surface.
  • Equally the positively locking contour provided beneath the joining surface of the receiving hook has regions which project with respect to the plane of the joining surface and other regions which are set back with respect to the plane of the joining surface.
  • the above-mentioned regions which project and are set back on the positively locking contour and the arresting contour form undercut configurations which counteract movement of the two hook profiles away from each other in a direction perpendicularly to the plane of the panel (vertically).
  • the arresting contour and the positively locking contour are pressed against and past each other. In that case they have to be elastically deformed.
  • the arresting contour and the positively locking contour are softly elastic and in that way can be brought into positively locking contact with each other.
  • the maximum amount of undercut configuration is limited by virtue of the soft-elastic property of the plastic material. The action of vertical locking is unsatisfactory.
  • the object of the invention is to improve the panel that the large number of plastic materials which can be used for the body is increased and the action of vertical locking is improved as much as possible.
  • the arresting contour, that is remote from the body, of the arresting hook is set back behind the plane of the joining surface of the arresting hook
  • the positively locking contour, that is nearer to the body, of the receiving hook projects at least partially beyond the plane of the joining surface of the receiving hook
  • the arresting step and the receiving opening are of such a configuration that the step end during a joining movement initially fits without elastic deformation of the hook profile into the receiving opening to such an extent that the horizontal locking surface of the arresting hook makes contact with a part of its surface with the horizontal locking surface of the receiving hook and the receiving hook has a flexural leg so adapted that the width of the receiving opening can be enlarged by its elastic bendability so that the arresting step can be entirely inserted into the receiving recess and also the arresting contour of the arresting hook is inserted into the positively locking contour of the receiving hook.
  • the positively locking contour for example can have a latching element which projects further than in the state of the art, and the arresting contour has a latching recess which is complementary to the latching element and which is deeper than in the state of the art. Nonetheless the arresting contour and the positively locking contour can be brought into engagement without any problem because the flexural leg adapted for that purpose elastically flexes and that flexing permits an enlargement of the receiving opening. In that way the arresting contour and the positively locking contour can be moved past each other without severe inherent deformation thereof, until they are in engagement.
  • the plastic layer of the body or core can be formed from a soft elastic plastic material like a thermoplastic polymer, for example polyolefin, polypropylene, polyurethane or polyamide. So-called soft PVC can also be considered as a soft plastic material. This involves a polyvinyl chloride which contains plasticiser. Basically however PVC is an amorphous elastomer which has a natural hardness and brittleness which can only be reduced by the plasticiser.
  • the panel is of such a configuration that it is also possible to produce the plastic layer of the core from a plastic material with natural hardness and brittleness, for example an amorphous elastomer like PVC which contains no plasticiser at all or only a small amount of plasticiser.
  • a plastic material with natural hardness and brittleness for example an amorphous elastomer like PVC which contains no plasticiser at all or only a small amount of plasticiser.
  • the thickness of the panels according to the invention is 3 to 10 mm, preferably 4 to 8 mm, particularly preferably 5 to 6 mm.
  • the weight in relation to surface area of the panel, depending on the respective thickness and specific structure, is between 1 and 2.5 kg/m 2 , preferably between 1.6 and 1.8 kg/m 2 .
  • a resilient latching tongue can be provided at the hook edge of the receiving hook, wherein near the body the arresting recess has a latching recess which fits together with the resilient latching tongue. That provides a second location within the hook connection, which is to be joined into each other by elastic deformation of a region which is provided and adapted for that purpose, namely the resilient latching tongue.
  • the resilient latching tongue, together with the arresting recess, also implements locking of the two hook profile portions in a vertical direction, that is to say perpendicularly to the plane of the locked panels.
  • the elastic properties of the body can be used if the resilient latching tongue is formed integrally with the body. If the body is formed from a relatively hard plastic material, that promotes inter alia production of the resilient latching tongue by cutting production processes like milling.
  • the resilient latching tongue is rooted at the side remote from the body of the hook edge and the free end of the resilient latching tongue projects inclinedly from the hook edge, for example inclinedly downwardly.
  • the resilient latching tongue is always so arranged that contact with the complementary hook profile portion causes inward spring movement of the integral latching tongue, which moves same closer to the body of its panel.
  • the resilient latching tongue has a sliding surface, remote from the body. That surface comes into contact with the arresting hook during a vertical joining movement. That movement causes the resilient latching tongue to be moved closer to the hook edge of the receiving hook. In that way it is elastically stressed and enables the joining movement. The arresting hook can then be introduced further into the receiving hook until both panels are in one plane.
  • a free space into which the latching tongue can elastically springingly engage can be provided between the resilient latching tongue and the hook edge.
  • Elastic prestressing makes it possible for the resilient latching tongue to spring back in the direction of its neutral position if there is space for same.
  • the latching recess has a latching contact surface.
  • the resilient latching tongue that provides for arresting of connected panels in a vertical direction.
  • the latching contact surface is of such a configuration that it forms an inclined abutment surface for the free end of the resilient latching tongue.
  • the inclined abutment surface is of such a configuration that the stressed latching tongue, when it springs back in the direction of its neutral position, comes to bear against that inclined abutment surface. It can further be so arranged that the latching tongue bears against the abutment surface before it reaches its neutral position so that a residual part of the stressing is always maintained in the latching tongue, and that serves to provide a secure arresting action.
  • the arresting step on its side remote from the body, has a sliding incline to be referred to as an inclined sliding surface.
  • the inclined sliding surface is desirably of such a configuration that it cooperates with that region of the positively locking contour, that projects. That region of the positively locking contour, that projects from the joining plane, forms for example a projecting latching element.
  • the projecting region cooperates with the inclined sliding surface of the arresting step. As soon as the inclined sliding surface comes into contact with the projecting region, for example the latching element, it slides along the latching element. In that way, firstly the joining surfaces of the receiving hook and the arresting hook are moved away from each other.
  • the horizontal locking surface of the arresting hook exerts a force which presses against the horizontal locking surface of the receiving hook. That force which is applied to the horizontal locking surface of the receiving hook is transmitted to the flexural leg of the receiving hook, which is thereby elastically bent.
  • the arresting contour passes the positively locking contour to such an extent until both have reached a position in which they fit into each other in positively locking relationship.
  • the flexural stress in the flexural leg exerts a force which again prestresses the joining surface of the arresting hook in the direction of the joining surface of the receiving hook. It is possible to achieve a closed join in that way.
  • the horizontal locking surfaces of the two hook profile portions are then preferably in a condition of bearing closely against each other.
  • the degree of flexing of the flexural leg can be influenced by the geometrical shape of the inclined sliding surface (linear or curved).
  • the flexural stress produced can be so adapted by a variation in the inclined sliding surface that the plastic material is not overloaded in the region of the flexural leg and does not suffer any damage.
  • a pair of the complementary locking means is in the form of pivotal profile portions. More specifically there is provided a groove profile portion with an undercut configuration of a groove wall and a tongue profile portion with an undercut configuration of a tongue portion side.
  • the hook profile portion of the new panel can be simultaneously locked to the hook profile portion of a panel in the same row of panels.
  • the arresting hook of the new panel is moved downwardly substantially in a vertical plane in a scissor-like movement and inserted into the receiving hook.
  • the arresting step firstly projects only at one end of the panel edge into the receiving opening.
  • the arresting step moves step by step into the receiving opening.
  • the elastic deformation of the flexural leg which is initiated thereby, also increases step by step.
  • the panels are finally disposed in one plane the arresting contour and the positively locking contour are exactly fitted into each other, the joining surfaces are in contact with each other and form a closed join.
  • the flexural stress in the flexural leg is eliminated again and the horizontal locking surfaces of the two hook profile portions bear snugly against each other in surface contact.
  • the area of use can be increased if a decorative layer is provided at the top side of the panel.
  • a further benefit is afforded by the provision of a transparent cover layer through which the decorative layer is visible.
  • the transparent cover layer serves to protect the decorative layer, it can be provided with means which reduce wear, for example corundum particles, glass particles and so forth. In that respect it may be desirable if a backing layer is provided at the underside of the panel. That acts as a balance for the layers provided at the top side, to counteract distortion of the panel.
  • FIGS. 1a-1d show complementary locking means of a first pair of edges of a panel according to the invention and a stepwise joining movement for locking two panels
  • FIGS. 2a-2d show an alternative embodiment of a first pair of edges of complementary locking means of a panel and the stepwise joining movement for locking two panels
  • FIG. 3 shows a floor covering comprising panels according to the invention, which have a second pair of edges with complementary locking means in the form of pivotal profile portions, and
  • FIG. 4 shows an embodiment for a pair of edges comprising pivotal profile portions.
  • FIGS. 1a to 1d each show a portion of two panels 1 and 2 respectively.
  • the panels 1 and 2 are identical.
  • Each individual panel has complementary profile portions 3 and 4 respectively at mutually opposite panel edges of a pair of edges.
  • the edge which is not shown identically has the profile portion 4 of the panel 2 while in the case of the panel 2 the edge which is not shown identically has the profile portion 3 of the panel 1 .
  • the second pair of edges can be formed with complementary profile portions which are identical to those of the first pair of edges.
  • FIGS. 1a to 1d illustrates in a plurality of steps the implementation in principle of the joining movement for the purposes of connecting and locking the panels 1 and 2 .
  • each panel 1 and 2 respectively form complementary locking means V in the form of hook profile portions H.
  • the hook profile portion of the profile portion 1 forms a receiving hook 5 and the hook profile portion of the profile portion 2 forms an arresting hook 6 which fits into the receiving hook 5 , wherein the two hook profile portions are of such a configuration that an arresting action is produced.
  • the arresting action counteracts a reversal of the joining movement.
  • the panels 1 and 2 after locking has been effected, can thus not be released from each other in a rearward movement.
  • Each panel 1 and 2 respectively includes a body 1 ′ and 2 ′ respectively with a plastic layer at which the above-mentioned complementary locking means V are arranged.
  • a top side 7 of the panel forms a working surface.
  • a hook edge 8 and nearer to the body a receiving recess 9 .
  • the receiving recess 9 is open to the top side 7 .
  • the arresting hook 6 is provided with an arresting recess 11 which is arranged closer to the body and which is open to the underside 10 , and has an arresting step 12 at a position remote from the body.
  • the arresting step 12 fits in a vertical joining direction T into the receiving recess 9 of the receiving hook 5 .
  • the arresting hook 6 has a joining surface 13 remote from the body and also remote from the body an arresting contour 14 which has a vertically locking action.
  • the receiving hook 5 has a joining surface and also near to the body a positively locking contour 16 which fits together in positively locking relationship with the arresting contour 14 of the arresting hook 6 . It is possible in that way to implement vertical locking.
  • the arresting hook 6 has a horizontal locking surface 17 arranged at its arresting step 12 .
  • the receiving hook 5 arranged in the receiving recess 9 remote from the body, has a horizontal locking surface 18 cooperating with the horizontal locking surface 17 of the arresting hook 6 .
  • the receiving hook 5 is provided with a narrowed receiving opening 19 .
  • the arresting step 12 can be introduced into the receiving recess 9 substantially in a vertical joining direction T, that is to say, in a plane perpendicularly to the plane of the locked panels.
  • the panel 1 is arranged with the receiving hook 5 on a fixed substrate (not shown).
  • the arresting step 12 of the panel 2 is lowered perpendicularly to the plane of the panel (vertically).
  • the arresting contour 14 that is remote from the body, of the arresting hook 5 has a latching recess 14 a which is set back behind the plane of the joining surface 13 of the arresting hook 6 .
  • the positively locking contour 16 that is near the body, of the receiving hook 5 is of such a configuration that it has a latching element 16 a which projects beyond the plane of the joining surface 15 of the receiving hook 5 and in the locked condition engages into/behind the latching recess 14 a of the arresting hook 6 .
  • the arresting step 12 and the receiving opening 19 are of such a configuration that the free end of the arresting step 12 , during the beginning of the joining movement, firstly fits into the receiving opening 19 without any elastic deformation worth mentioning of the hook profile portions.
  • the horizontal locking surface 17 of the arresting hook 6 comes into contact with a part of its surface with the horizontal locking surface 18 of the receiving hook 5 .
  • the flexural leg 20 is of such a configuration that the width of the receiving opening 19 can be enlarged by the elastic bendability of the leg so that the arresting step 12 can be inserted into the receiving recess 9 without any problem.
  • the arresting contour 14 of the arresting hook 6 can be very easily introduced into the positively locking contour 16 of the receiving hook 5 .
  • the hook profile portions are to be brought into engagement without already being elastically deformed at the engagement location. It is only upon further progress with the joining movement that the undercut regions of the arresting contour 14 and the positively locking contour 16 come into contact at the engagement location. That contact however causes elastic deformation which takes place substantially at another location, more specifically at the flexural leg 20 provided for that purpose. Admittedly the arresting contour 14 and the positively locking contour 16 are also pressed and deformed, but the harder and more brittle that the plastic material of the body is, the correspondingly less is the elastic deformation of the arresting contour 14 and the positively locking contour 16 and the correspondingly greater is the degree of elastic deformation of the flexural leg 20 .
  • the latching recess 14 a of the arresting hook 6 is deeper than in the state of the art. Equally the latching element 16 a of the receiving hook 5 projects further from the joining surface 15 of the receiving hook 5 than in the state of the art. As a result, there is a greater degree of undercut configuration in the vertical joining direction than in the state of the art. Nonetheless the arresting contour 14 and the positively locking contour 16 can be brought into engagement without any problem. This is because the flexural leg 20 is elastically bendable in such a way that such bending permits enlargement of the receiving opening 19 . The arresting contour 14 and the positively locking contour 16 can thus be moved past each other without severe inherent deformation thereof until they are in positively locking engagement and deploy their vertical locking action.
  • FIG. 1b shows that an inclined surface is provided remote from the body at the arresting step 12 , that surface forming an inclined sliding surface 12 a.
  • the inclined sliding surface contacts the projecting latching element 16 a of the positively locking contour 16 of the receiving hook.
  • a horizontal movement is superimposed, which moves the panels away from each other so that a space is formed between the joining surfaces 13 , 15 .
  • the horizontal locking surface 17 of the arresting hook 6 exerts a force which presses against the horizontal locking surface 18 of the receiving hook 5 .
  • the force acting on the horizontal locking surface 18 of the receiving hook 5 is transmitted to the flexural leg 20 of the receiving hook 5 , which as a result is elastically bent.
  • the arresting contour 14 and the positively locking contour 16 have reached a position in which they fit into each other in positively locking relationship.
  • the hook profile portions H can be so designed that a residual flexural stress is maintained in the flexural leg 20 and an elastic force (spring force) is exerted by way of the horizontal locking surface 18 of the receiving hook 5 , which force prestresses the joining surface 13 of the arresting hook 6 permanently in the direction of the joining surface 15 of the receiving hook 5 .
  • a closed join can be permanently achieved in that way.
  • the horizontal locking surfaces 17 , 18 of the two hook profile portions H are in a condition of bearing closely against each other and they do not exert a permanent prestressing action.
  • FIGS. 2a to 2d each show a portion of two panels 1 and 2 respectively. They are again identical. Each individual panel has the illustrated complementary profile portions at mutually opposite panel edges of a pair of edges. In the case of a panel with four edges the second pair of edges are provided with complementary profile portions identical to the panel edges of the first pair of edges.
  • FIGS. 2a to 2d The embodiment of the panel 1 and 2 respectively as shown in FIGS. 2a to 2d substantially corresponds to the embodiment of FIGS. 1a to 1d .
  • the same references are used for identical features, as in FIGS. 1a to 1d .
  • FIGS. 2a to 2d there is provided a second positively locking locking action.
  • a resilient latching tongue which is rooted at the hook edge 8 of the receiving hook 5 .
  • the arresting recess 11 has a latching recess 22 which cooperates with the resilient latching tongue 21 , in that way there is a second location within a hook connection, which is to be fitted into each other without any problem by elastic deformation of a region adapted and provided for that purpose, namely the resilient latching tongue 21 .
  • the resilient latching tongue 21 together with the arresting recess 9 also provides for locking of the two hook profile portions H in a vertical direction, that is to say perpendicularly to the plane of the locked panels.
  • the resilient latching tongue 21 is integral with the body. In that respect use is made of the elastic properties of the body. It is desirable for the locking effect of the resilient latching tongue 21 if the plastic material of plastic layer P of the body is relatively hard and flexurally stiff. A harder plastic material therefore acts better than a soft plastic material which yields easily.
  • the resilient latching tongue 21 projects inclinedly downwardly from the hook edge 8 .
  • the free end of the resilient latching tongue 21 points in the direction of the substrate.
  • the resilient latching tongue 21 Remote from the body the resilient latching tongue 21 has a sliding surface 23 which comes into contact with the arresting hook 6 during the joining movement and thus causes an inward spring movement of the latching tongue 21 . Due to that movement the latching tongue 21 is moved closer to the hook edge 8 or closer to the body of the panel 1 . In that case the resilient latching tongue 21 is elastically stressed and enables the vertical joining movement so that the arresting hook 6 can be further lowered. The arresting hook 6 can then be further introduced into the receiving hook 5 until the two panels 1 and 2 are disposed in one plane.
  • a free space 24 into which the latching tongue 21 can elastically springingly engage is provided between the resilient latching tongue 21 and the hook edge 8 .
  • Elastic prestressing of the latching tongue 21 makes it possible for the latching tongue to spring back in the direction of its neutral position if there is space for same. Space is available when the latching tongue 21 , during the joining movement, passes into the region of the latching recess 22 of the arresting hook 6 .
  • the latching recess 22 has a latching contact surface 25 which, by contact with the resilient latching tongue 21 , causes vertical arresting of interconnected panels, that is to say, perpendicularly to the panel plane.
  • the latching contact surface 25 is of such a configuration that it forms an inclined abutment surface for the free end of the resilient latching tongue 21 .
  • the inclined abutment surface 26 is of such a configuration that the stressed resilient latching tongue 21 , when it springs back in the direction of its neutral position, comes to bear against that inclined abutment surface 26 before reaching its neutral position. Thus a residual prestressing is always maintained in the latching tongue 21 , thereby ensuring a secure arresting action.
  • FIG. 3 illustrates portion-wise the production of a floor covering from panels according to the invention.
  • the panels used involve an embodiment with a first pair of edges having complementary hook profile portions H and a second pair of edges provided with complementary positively locking pivotal profile portions S.
  • the pivotal profile portions S serve to interconnect panels of differing rows of panels.
  • the hook profile portions H serve to interconnect panels of the same row of panels.
  • the hook profile portions H of the first pair of edges can be so designed as in the embodiment of FIGS. 1a to 1d .
  • the hook profile portions H of the first pair of edges can correspond to the embodiment shown in FIGS. 2a to 2d .
  • FIG. 3 shows in the foremost row of panels III a new panel 27 which is to be locked both to the previous row of panels II and also to the adjacent panel 28 of the same row III.
  • the new panel is fitted inclinedly in relation to the plane of the laid panels and is attached with its pivotal profile portions S to the front row of panels II. Then it is locked to the previous row II by downward pivotal movement into the plane of the laid panels.
  • the hook profile portion (arresting hook 6 ) of the new panel 27 is also locked to the hook profile portion (receiving hook 5 ) of the panel 28 of the same row III.
  • the receiving hook 5 has a flexural leg whose elastic bending is completed step by step, the further the arresting hook 6 is moved in the direction of the receiving hook 5 or the further the arresting step of the arresting hook 6 is inserted into the receiving recess of the receiving hook 5 .
  • the second pair of edges can be implemented with complementary pivotal profile portions S in the form of all known positively locking profile portions which can be positively lockingly connected by inclinedly fitting a new panel to a previous row of panels and then pivoting the new panel downwardly into the plane of the laid panels.
  • An embodiment of such a pivotal profile portion S is shown in FIG. 4 .
  • the complementary pivotal profile portions S in FIG. 4 include a groove profile portion 29 and a tongue profile portion 30 .
  • the groove profile portion 29 has an upper groove wall 29 a which is shorter than the lower groove wall 29 b.
  • the lower groove wall 29 b is also provided with an undercut recess 29 c for the tongue profile portion 30 .
  • the recess 29 also has a horizontal locking surface 29 d.
  • the tongue profile portion 30 is provided with a tongue top side 30 a arranged substantially parallel to the top side 7 of the new panel 27 .
  • the tongue underside 30 b has an undercut configuration 30 c and a horizontal locking surface 30 d which cooperates with the horizontal locking surface 29 d of the lower groove wall 29 b.
  • the inclined position of the new panel 27 shown in FIG. 3 is clearly indicated in FIG.
US15/944,141 2010-12-22 2011-12-13 Panel Active USRE47496E1 (en)

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DE102010063976A DE102010063976B4 (de) 2010-12-22 2010-12-22 Paneel
DE102010063976 2010-12-22
US15/944,141 USRE47496E1 (en) 2010-12-22 2011-12-13 Panel
PCT/EP2011/072573 WO2012084604A1 (de) 2010-12-22 2011-12-13 Paneel
US13/996,313 US8720150B2 (en) 2010-12-22 2011-12-13 Panel

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JP (1) JP5913360B2 (de)
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CN (2) CN202055464U (de)
BR (1) BR112013016040B1 (de)
CA (1) CA2821606C (de)
DE (2) DE102010063976B4 (de)
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MY (1) MY169659A (de)
PL (2) PL2655761T3 (de)
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JP2014500422A (ja) 2014-01-09
KR20130121141A (ko) 2013-11-05
WO2012084604A1 (de) 2012-06-28
RU2552504C2 (ru) 2015-06-10
US20140283477A1 (en) 2014-09-25
DE102010063976B4 (de) 2013-01-17
RU2013133451A (ru) 2015-01-27
EP2655761B1 (de) 2017-09-13
PL2655761T3 (pl) 2018-02-28
CN202055464U (zh) 2011-11-30
ES2651618T3 (es) 2018-01-29
DE102010063976A1 (de) 2012-06-28
US20130276398A1 (en) 2013-10-24
CN102535811B (zh) 2015-07-01
MY169659A (en) 2019-04-26
ES2927611T3 (es) 2022-11-08
CA2821606C (en) 2016-02-02
EP2655761A1 (de) 2013-10-30
EP3121348B1 (de) 2022-08-17
BR112013016040A2 (pt) 2017-09-19
PT2655761T (pt) 2017-12-14
UA110501C2 (ru) 2016-01-12
KR101494563B1 (ko) 2015-02-17
CN102535811A (zh) 2012-07-04
HK1172667A1 (en) 2013-04-26
CA2821606A1 (en) 2012-06-28
JP5913360B2 (ja) 2016-04-27
US8720150B2 (en) 2014-05-13
DE202011110833U1 (de) 2016-08-19
BR112013016040B1 (pt) 2020-08-04
CA2821606E (en) 2012-06-28
EP3121348A1 (de) 2017-01-25
US9175475B2 (en) 2015-11-03
PL3121348T3 (pl) 2023-01-02
PT3121348T (pt) 2022-09-27

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