WO2007142589A1 - Élément raccord et procédé permettant de raccorder des corps dynamiques à l'aide de l'élément raccord - Google Patents

Élément raccord et procédé permettant de raccorder des corps dynamiques à l'aide de l'élément raccord Download PDF

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Publication number
WO2007142589A1
WO2007142589A1 PCT/SE2007/000564 SE2007000564W WO2007142589A1 WO 2007142589 A1 WO2007142589 A1 WO 2007142589A1 SE 2007000564 W SE2007000564 W SE 2007000564W WO 2007142589 A1 WO2007142589 A1 WO 2007142589A1
Authority
WO
WIPO (PCT)
Prior art keywords
shank
connection member
bodies
dynamic bodies
dynamic
Prior art date
Application number
PCT/SE2007/000564
Other languages
English (en)
Inventor
Ingemar Johansson
Måns MANNERFELDT
Original Assignee
Burseryd Innovation Ab I Konkurs
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 Burseryd Innovation Ab I Konkurs filed Critical Burseryd Innovation Ab I Konkurs
Publication of WO2007142589A1 publication Critical patent/WO2007142589A1/fr

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
    • E04F15/02005—Construction of joints, e.g. dividing strips
    • 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
    • E04F15/04—Flooring or floor layers composed of a number of similar elements only of wood or with a top layer of wood, e.g. with wooden or metal connecting members
    • 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
    • E04F2201/04—Other details of tongues or grooves
    • E04F2201/042—Other details of tongues or grooves with grooves positioned on the rear-side of the panel
    • 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
    • E04F2201/05—Separate connectors or inserts, e.g. pegs, pins, keys or strips
    • E04F2201/0517—U- or C-shaped brackets and clamps

Definitions

  • the present invention relates to a connection member and a method of connecting dynamic bodies.
  • the invention is primarily directed, although not limited, to massive wooden floors, so-called genuine parquet, i.e. parquet made of massive wood and not of lamellar/laminate floor.
  • the invention is also directed to the connection of pieces of wood into modules and/or floors, which are not to be detachably connected.
  • parquet floors were laid in French castles and manors during the middle ages. Parquet floors were introduced in Sweden at the end of the 16th century. During the 17th century, Kapuziner monks from Vienna developed block parquet floors of herringbone pattern.
  • Parquet-floor layers of that time produced each block on the spot in a craftsmanlike manner.
  • the laying of parquet was facilitated as the parquet-floor layers themselves began to manufacture hand-cranked grooving machines.
  • the first polishing machines were imported to Sweden.
  • Burseryd was comprised of a proprietary sawmill with drying plants for the parquet manufacturing.
  • Burseryd has been focused on the purchase of parquet work pieces, having drying as well as manufacture of their own. Facts
  • Block parquetry is laid manually even today, block by block, which together form different kinds of patterns.
  • Each parquet block is made of massive wood. Patterns - regardless of design - require block parquetry in accordance with the requirements below. If any of the parameters are incorrect, "errors or displacements" occur and the pattern "falls apart”.
  • the length of the parquet block is a multiple of its width.
  • our parquet block is dried to a specific moisture ratio.
  • the block parquet is fixed upon its base either by nailing each block fixedly onto the base, connected (typically groove and tenon) to the "neighbouring block” which then already has been nailed/fixed onto the base, or by gluing each block fixedly onto the base connected to the "neighbouring block” which then has been glued onto the base already.
  • the method of glued parquet block is preferable, among other things depending on The floor withstands expansion and compression well It can be laid rapidly and easily
  • the method has the advantage that nailed floors are more easily repaired in the case of, e.g., water damages etc.
  • a skilled floor-layer is capable of completing approx. 20 square meters of floor in a working day.
  • the floor can be initially utilised only after the grinding and surface treatment - a process typically taking no more than yet another day. That is not much as compared to what can be accomplished with surface-treated lamellar/laminate floors which are, e.g., "snapped together" and laid “floating"
  • a short laying duration provides a minimization of the occupation of working site during construction or renovation.
  • the house owner's capital expenses decrease and the contractor's fines for delays, if any, are minimized.
  • the supporting part may be a sheet of particle board, i.e. wood fibres compounded by means of a joint material such as a glue.
  • these large pieces are patterned as parquet, for example having a "falling lengths" pattern.
  • These large pieces may be detachably connected by means of a snapping system where the large pieces are provided with a tongue along two sides and recesses along the remaining two sides.
  • connection members adapted to detachably connect the large pieces.
  • a connection member a path
  • the panels never abut against the base, but the connection members protrude under the panels such that the floor rests thereon. This provides a resilient floor with considerable resonance such that the impact sound becomes loud.
  • connection member for laminate floors.
  • the object of the invention is to provide a vertically mountable laminate floor.
  • the floor-layer does not have to operate standing on his knees and insert the panels into one another.
  • the connection member is preferably made of plastic extruded into lengthy lengths advantageously extending over the entire floor length in order to minimise the risk of gaps occurring between the panels.
  • they In order to enable the shanks of this connection member to engage the side recesses of the panels, they must be able to flex several millimetres, i.e. be made of a very flexible material thereby not capable of carrying great forces.
  • Laminate and lamellar floors are carried by particle boards and similar materials having a limited coefficient of moisture expansion as compared to massive wood. Thereby, the use of the connection members proposed above has not caused any problems.
  • wood is a very dynamic material. Massive pieces of wood, such as genuine parquet blocks, easily absorb moisture and expand considerably or release moisture (dry) and thereby shrink, depending on the environmental climate. It is therefore important that the wood pieces are pre-treated and dried to a moisture ratio suitable for the climate at which they are to be used, in order to avoid drying cracks and gaps or inversely buckles and surging floors.
  • the moisture content of wood pieces adapted for the Swedish climate with dry winters and relatively damp summers is less than 7%.
  • Wood pieces adapted for the European continent should have a moisture content of approx. 9-10% instead. If a floor is laid with "European wood pieces", this floor will dry and crack during the first winter.
  • the expansion is the greatest widthwise. In one example, the difference between the width of a floor during summer and winter in Sweden is approx. 1,5 cm for a floor of 4 m width. Such a great width expansion results in very great forces. If a floor has been laid tight against the walls in its "narrow" state, it may, if prevented from surging upwards, move walls. Corresponding forces arise when the wood pieces contract by drying, e.g. during the winter. Then, the wood pieces contract such that gaps occur between the wood pieces, or in the worst case they crack.
  • connection member combined with the connecting method.
  • shank with its shank legs is in a mounted position adapted to absorb forces arising from dimensional changes of the adjacent wood pieces by flexing, such that the adjacent wood pieces stay connected and at the same time do not break as a result from the dimensional change forces.
  • connection members for laminate floors are practically stiff in their capability of absorbing side forces arising due to dimensional changes. They work in the intended technical field for laminate floors at a small occurring dimensional change, but cannot be applied in the technical field of dynamic bodies, such as massive wood pieces.
  • connection member allows for rapid and simple connection of two or more dynamic bodies, such as parquet blocks.
  • the parquet blocks can thus be laid in patterns.
  • the connection member fix the wood pieces mutually at a proper level, i.e. the surface is smooth also during spot loading on or next to a wood piece junction.
  • the connection member allows dynamic bodies, such as the wood pieces, to expand without resulting in displacements at wood piece junctions.
  • the connection member has tensioned and elastic "grips" that pull or keep the dynamic bodies together at the wood piece junctions during compression. This implies that the entire floor "floats" upon the base.
  • Fig. 1 shows a sectional view of an embodiment of a connection member according to the present invention
  • Fig. 2 shows the connection member when interacting with two adjacent wood pieces
  • Fig. 3 shows a typical locked parquet pattern, the mill pattern
  • Fig. 4 shows a typical open parquet pattern, the square
  • Fig. 5 shows another open parquet pattern, the herringbone pattern
  • Fig. 6 shows a proposed connection of three wood pieces by means of three connection members forming a falling parquet pattern
  • Fig. 7 shows grooves and recesses in a dynamic body adapted to be connected by means of a connection member according to the present invention.
  • connection member for connecting dynamic bodies, such as massive wood pieces, e.g. genuine parquet blocks, according to the present invention, is shown in cross-section in fig. 1.
  • the connection member comprises a longitudinal body 1 having a cross-section with two base plates 2 aligned in opposite directions, adapted to extend, in a mounted position, along the bottom sides 14 of two adjoining wood pieces 13, see fig 2.
  • connection member 1 comprises an upright shank 4 having two shank legs 5, the shank legs 5 transforming into the respective base plates 2. From the upper body 6 of the shank 4, two spring arms 7 extend outwards essentially parallel to the base plates 2.
  • the spring arms 7 are bent upwards and bent inwards towards the shank 4 at a distance from the shank 4 so as to form a recumbent U-form.
  • a lower section 8 of each respective spring arm 7 is essentially parallel to an upper section 9 of the respective spring arm 7.
  • Each upper section 9 of the spring arms 7, respectively, is provided with a second projection 10 aligned upwards in a mounted position.
  • a supporting head 11 is arranged on top of the upper body ⁇ of the shank 4 in a mounted position, to support an upper lip 23 of the adjacent wood pieces 13 which in a mounted position are arranged over the connection member 1.
  • Shoulders 12 are preferably arranged at the transition between each respective shank leg 5 and base plate 2, the shoulders 12 being arranged to rest upon the base and interact with the supporting head 11.
  • the connection member fix the parquet blocks mutually at a proper level, i.e. the surface is smooth also at spot loading on or next to a parquet block junction by means of the supporting head 11, among other things.
  • the dynamic bodies such as the wood pieces
  • each respective base plate 2 and its associated shank leg 5 should be somewhat less than 90 degrees, such that the base plates 2 provide a spring force directed upwards in a mounted state, whereby the first projections 3 can be engaged with the bottom side 14 of each respective wood piece 13 and simultaneously exert a uniting force between two adjacent dynamic bodies, such as wood pieces 13.
  • the wood pieces 13 to be connected as a floor are provided with a groove 16 along its edges on the bottom side, in which the first projections 3 can engage, preferably behind a ridge 17.
  • the shank 4 with its shank legs 5 is resilient such that they in a mounted position absorb forces arising from dimensional changes of the adjacent wood pieces 13, such that the adjacent wood pieces 13 stay connected and at the same time do not break as a result from the dimensional change forces.
  • the spring arms 7 provide a vertical spring force in the mounted position.
  • the upper 9 and lower 8 sections of the spring arms 7 are forced towards each other essentially in a vertical direction in the mounted position as the spring arms 7 are inserted in side grooves 18 along the side edges of the wood pieces 13.
  • the lower section 8 abuts at least partly against a lower surface 20 in the side groove 18 and the upper section 9 abuts at least with its projection 10 against an upper surface 19 in the side groove 18.
  • the transition between the upper body 6 of the shank 4 and the respective spring arm 7 is also provided with a step 21 adapted to abut against a lower lip 22 of the wood piece 13 in the mounted state.
  • the upper section 9 will flex further downwards and during drying of the wood piece 13, the upper section 9 will flex back again upwards wherein the adjoining wood pieces 13 are contracted.
  • connection member is preferably produced as extruded aluminium that are cut into desirable lengths. Certain strong but tough plastics might also be used, as well as other metals. In the preferred embodiment, the forces and flexings in the different parts of the connection member cooperate in order to allow expansion and contraction of the dynamic bodies without resulting in displacements.
  • a dynamic body such as a wood piece, is equipped with a number of connection members depending on how the pattern is to be laid but preferably at least one per side. Each short side of the wood pieces should be equipped with a connection member according to the present invention in order to accomplish the highest quality of the floor. See the examples in fig. 6. These wood pieces are not fixed to the base.
  • the dynamic bodies such as the wood pieces 13 made of massive wood, are uniformly milled out roundabout, i.e. milled out in the same manner on all four sides. See fig. 7.
  • the wood pieces 13 are provided with groove recesses, side grooves 18, in their side edges and a recess 14, 16 underneath along the side edges, wherein the side grooves 18 and the lower recesses 14, 16 are adapted for receiving connection members, as described above .
  • modules of dynamic bodies are delivered, such as wood pieces where the modules (not each body) are connected during the laying of, e.g., the parquet floor.
  • the result involves an increased number of laid square meters per working day.
  • the parquet modules may be designed according to known patterns. There are a number of known patterns characterised by that a number of parquet blocks are mounted together such that the pattern becomes "locked". By means of this invention, a smooth and rigid parquet module can be obtained.
  • the mill pattern is shown in fig. 3.
  • wood pieces having a moisture ratio of 12% are connected together according to the invention, and are then placed in a dry space and thereafter in a damp environment.
  • the floor has survived without cracks and has been able to expand and decrease in relation to the moisture ratio in the wood pieces.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Wood Science & Technology (AREA)
  • Floor Finish (AREA)
  • Joining Of Building Structures In Genera (AREA)

Abstract

La présente invention concerne un élément raccord, destiné à des corps dynamiques massifs (13), qui comprend : un corps longitudinal (1) doté d'une section transversale comportant deux plaques de base (2) alignées selon des directions opposées et conçues pour s'étendre le long des côtés inférieurs (14) de deux corps dynamiques adjacents (13), les plaques de base (2) étant pourvues de protubérances (3) ascendantes ; une tige verticale (4) dotée de deux montants de tige (5), les montants de tiges (5) donnant les plaques de base (2) respectives ; deux bras à ressort (7) sortant du corps supérieur (6) de la tige (4) et sensiblement parallèles aux plaques de base (2), les bras à ressort (7) étant courbés vers le haut et vers l'intérieur de la tige (4) afin qu'une section inférieure (8) se trouve sensiblement parallèle à une section supérieure (9), chaque section supérieure (9) des bras à ressort (7) étant dotée d'une protubérance (10) ascendante ; et une tête de support (11) disposée sur le corps supérieur (6) de la tige (4) en position montée. L'invention porte aussi sur un procédé permettant de relier des corps dynamiques, telles des pièces de bois où deux pièces de bois (13) au moins, possédant des dépressions circonférentielles (14, 16), sont reliées à un élément raccord au moins.
PCT/SE2007/000564 2006-06-09 2007-06-08 Élément raccord et procédé permettant de raccorder des corps dynamiques à l'aide de l'élément raccord WO2007142589A1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
SE0601282 2006-06-09
SE0601282-7 2006-06-09
SE0602247A SE530048C2 (sv) 2006-06-09 2006-10-25 Fästelement samt metod att sammanfoga dynamiska kroppar medelst fästelementet
SE0602247-9 2006-10-25

Publications (1)

Publication Number Publication Date
WO2007142589A1 true WO2007142589A1 (fr) 2007-12-13

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SE (1) SE530048C2 (fr)
WO (1) WO2007142589A1 (fr)

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EP2397623A1 (fr) * 2010-06-17 2011-12-21 Spanolux N.V. - Div. Balterio Agencement d'assemblage de panneaux
FR2967434A1 (fr) * 2010-11-15 2012-05-18 Menuiserie Collilieux Element de jonction pour parquet ou similaire
WO2013025165A1 (fr) * 2011-08-15 2013-02-21 Välinge Flooring Technology AB Système de blocage mécanique pour panneaux de plancher
US8544234B2 (en) 2007-11-07 2013-10-01 Valinge Innovation Ab Mechanical locking of floor panels with vertical snap folding
US8544230B2 (en) 2010-01-12 2013-10-01 Valinge Innovation Ab Mechanical locking system for floor panels
US8572922B2 (en) 2011-07-05 2013-11-05 Valinge Flooring Technology Ab Mechanical locking of floor panels with a glued tongue
US8596013B2 (en) 2012-04-04 2013-12-03 Valinge Innovation Ab Building panel with a mechanical locking system
US8627862B2 (en) 2008-01-31 2014-01-14 Valinge Innovation Ab Mechanical locking of floor panels, methods to install and uninstall panels, a method and an equipment to produce the locking system, a method to connect a displaceable tongue to a panel and a tongue blank
US8650826B2 (en) 2011-07-19 2014-02-18 Valinge Flooring Technology Ab Mechanical locking system for floor panels
US8689512B2 (en) 2006-11-15 2014-04-08 Valinge Innovation Ab Mechanical locking of floor panels with vertical folding
US8707650B2 (en) 2004-10-22 2014-04-29 Valinge Innovation Ab Mechanical locking system for panels and method of installing same
US8713886B2 (en) 2009-01-30 2014-05-06 Valinge Innovation Ab Mechanical lockings of floor panels and a tongue blank
US8763340B2 (en) 2011-08-15 2014-07-01 Valinge Flooring Technology Ab Mechanical locking system for floor panels
US8769905B2 (en) 2011-08-15 2014-07-08 Valinge Flooring Technology Ab Mechanical locking system for floor panels
US8776473B2 (en) 2010-02-04 2014-07-15 Valinge Innovation Ab Mechanical locking system for floor panels
US8844236B2 (en) 2006-07-11 2014-09-30 Valinge Innovation Ab Mechanical locking of floor panels with a flexible bristle tongue
US8857126B2 (en) 2011-08-15 2014-10-14 Valinge Flooring Technology Ab Mechanical locking system for floor panels
US8869485B2 (en) 2006-12-08 2014-10-28 Valinge Innovation Ab Mechanical locking of floor panels
US8887468B2 (en) 2011-05-06 2014-11-18 Valinge Flooring Technology Ab Mechanical locking system for building panels
US8925274B2 (en) 2008-05-15 2015-01-06 Valinge Innovation Ab Mechanical locking of building panels
US8997430B1 (en) 2010-04-15 2015-04-07 Spanolux N.V.-Div. Balterio Floor panel assembly
US9216541B2 (en) 2012-04-04 2015-12-22 Valinge Innovation Ab Method for producing a mechanical locking system for building panels
US9260870B2 (en) 2014-03-24 2016-02-16 Ivc N.V. Set of mutually lockable panels
US9366036B2 (en) 2012-11-22 2016-06-14 Ceraloc Innovation Ab Mechanical locking system for floor panels
US9458634B2 (en) 2014-05-14 2016-10-04 Valinge Innovation Ab Building panel with a mechanical locking system
US9725912B2 (en) 2011-07-11 2017-08-08 Ceraloc Innovation Ab Mechanical locking system for floor panels
DE202017106600U1 (de) 2017-10-30 2017-11-13 Kronoplus Technical Ag Paneele mit einer lösbaren hervorstehenden Lippe für Wand-, Decken- oder Bodenbeläge
EP3327217A1 (fr) * 2016-11-28 2018-05-30 Tarkett GDL S.A. Profilé d'assemblage et ensemble de dallage pour pose horizontale
US10017948B2 (en) 2013-06-27 2018-07-10 Valinge Innovation Ab Building panel with a mechanical locking system
US10041258B2 (en) 2013-10-25 2018-08-07 Ceraloc Innovation Ab Mechanical locking system for floor panels
US10060139B2 (en) 2013-07-09 2018-08-28 Ceraloc Innovation Ab Mechanical locking system for floor panels
US10138636B2 (en) 2014-11-27 2018-11-27 Valinge Innovation Ab Mechanical locking system for floor panels
WO2019015746A1 (fr) 2017-07-18 2019-01-24 Xylo Technologies Ag Panneaux dotés d'une lèvre saillante détachable pour des revêtements destinés à être posés sur des murs, des plafonds ou des sols
US10246883B2 (en) 2014-05-14 2019-04-02 Valinge Innovation Ab Building panel with a mechanical locking system
US10280627B2 (en) 2014-03-24 2019-05-07 Flooring Industries Limited, Sarl Set of mutually lockable panels
US10378217B2 (en) 2002-04-03 2019-08-13 Valinge Innovation Ab Method of separating a floorboard material
CN110126701A (zh) * 2019-05-21 2019-08-16 王晨晨 一种汽车用木质地板连接结构
CN110512828A (zh) * 2019-09-26 2019-11-29 张棋惠 用于锁扣式板材的榫合限位结构
DE202019005364U1 (de) 2019-11-07 2020-05-13 Xylo Technologies Ag Paneele mit einer abtrennbaren vorstehenden Lippe für Wand-, Decken- und Bodenverkleidungen
CN111734075A (zh) * 2020-06-02 2020-10-02 广东优美仕新材料科技有限公司 一种陶瓷面锁扣地板及其安装工艺
WO2021089152A1 (fr) 2019-11-07 2021-05-14 Xylo Technologies Ag Panneaux pourvus d'une lèvre saillante détachable pour revêtements muraux, de plafond ou de sol
US11060302B2 (en) 2019-01-10 2021-07-13 Valinge Innovation Ab Unlocking system for panels
US11208812B2 (en) 2018-06-13 2021-12-28 Ceraloc Innovation Ab Flooring system provided with a connecting system and an associated connecting device
US11725394B2 (en) 2006-11-15 2023-08-15 Välinge Innovation AB Mechanical locking of floor panels with vertical folding
US11987990B2 (en) 2007-11-07 2024-05-21 Välinge Innovation AB Mechanical locking of floor panels with vertical snap folding

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DE19941284A1 (de) * 1999-08-31 2001-03-22 Akzenta Paneele & Profile Gmbh Belagsystem sowie Verfahren zur Verlegung desselben
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US10378217B2 (en) 2002-04-03 2019-08-13 Valinge Innovation Ab Method of separating a floorboard material
US9376821B2 (en) 2004-10-22 2016-06-28 Valinge Innovation Ab Mechanical locking system for panels and method of installing same
US8707650B2 (en) 2004-10-22 2014-04-29 Valinge Innovation Ab Mechanical locking system for panels and method of installing same
US9382716B2 (en) 2006-07-11 2016-07-05 Valinge Innovation Ab Mechanical locking of floor panels with a flexible bristle tongue
US11193283B2 (en) 2006-07-11 2021-12-07 Valinge Innovation Ab Mechanical locking of floor panels with a flexible bristle tongue
US11680415B2 (en) 2006-07-11 2023-06-20 Valinge Innovation Ab Mechanical locking of floor panels with a flexible bristle tongue
US10669723B2 (en) 2006-07-11 2020-06-02 Valinge Innovation Ab Mechanical locking of floor panels with a flexible bristle tongue
US8844236B2 (en) 2006-07-11 2014-09-30 Valinge Innovation Ab Mechanical locking of floor panels with a flexible bristle tongue
US11725394B2 (en) 2006-11-15 2023-08-15 Välinge Innovation AB Mechanical locking of floor panels with vertical folding
US11053691B2 (en) 2006-11-15 2021-07-06 Valinge Innovation Ab Mechanical locking of floor panels with vertical folding
US10358830B2 (en) 2006-11-15 2019-07-23 Valinge Innovation Ab Mechanical locking of floor panels with vertical folding
US8763341B2 (en) 2006-11-15 2014-07-01 Valinge Innovation Ab Mechanical locking of floor panels with vertical folding
US8689512B2 (en) 2006-11-15 2014-04-08 Valinge Innovation Ab Mechanical locking of floor panels with vertical folding
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