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WO1997038187A1 - Planche de plancher fabriquee a partir de bois d'oeuvre de placage stratifie - Google Patents

Planche de plancher fabriquee a partir de bois d'oeuvre de placage stratifie Download PDF

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Publication number
WO1997038187A1
WO1997038187A1 PCT/CA1997/000224 CA9700224W WO9738187A1 WO 1997038187 A1 WO1997038187 A1 WO 1997038187A1 CA 9700224 W CA9700224 W CA 9700224W WO 9738187 A1 WO9738187 A1 WO 9738187A1
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WO
WIPO (PCT)
Prior art keywords
piece
veneer
lumber
groove
veneers
Prior art date
Application number
PCT/CA1997/000224
Other languages
English (en)
Inventor
I. Bruce Buchanan
Original Assignee
Buchanan I Bruce
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 Buchanan I Bruce filed Critical Buchanan I Bruce
Priority to AU22827/97A priority Critical patent/AU2282797A/en
Publication of WO1997038187A1 publication Critical patent/WO1997038187A1/fr

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27D—WORKING VENEER OR PLYWOOD
    • B27D1/00—Joining wood veneer with any material; Forming articles thereby; Preparatory processing of surfaces to be joined, e.g. scoring
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B3/00—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form
    • B32B3/02—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by features of form at particular places, e.g. in edge regions
    • B32B3/06—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by features of form at particular places, e.g. in edge regions for securing layers together; for attaching the product to another member, e.g. to a support, or to another product, e.g. groove/tongue, interlocking
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B21/00—Layered products comprising a layer of wood, e.g. wood board, veneer, wood particle board
    • B32B21/13—Layered products comprising a layer of wood, e.g. wood board, veneer, wood particle board all layers being exclusively wood
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B21/00—Layered products comprising a layer of wood, e.g. wood board, veneer, wood particle board
    • B32B21/14—Layered products comprising a layer of wood, e.g. wood board, veneer, wood particle board comprising wood board or veneer
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2471/00—Floor coverings
    • 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
    • E04F2201/025—Non-undercut connections, e.g. tongue and groove connections with tongue and grooves alternating transversally in the direction of the thickness of the panel, e.g. multiple tongue and grooves oriented parallel to each other
    • 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
    • E04F2201/043—Other details of tongues or grooves with tongues and grooves being formed by projecting or recessed parts of the panel layers

Definitions

  • This invention relates to a novel floorboard, and to a method of making it The invention also relates to a novel floor construction.
  • Tongue-and-groove floorboards are a known type of lumber which is intended for use in floor constructions.
  • Tongue and groove lumber is sawn, generally from hardwood, into long strips, and is profiled by being passed through a moulder or profiling saw to put a tongue on one longitudinal edge, and a corresponding groove on the other.
  • wood tongue and groove flooring is laid over a plywood or particle board subfloor, and is nailed to the subfloor, which in turn is nailed to joists
  • LVL laminated veneer lumber
  • LVL laminated veneer lumber
  • the cross section is made to be the same as common sizes of structural sawn lumber. LVL tends to be stronger and more uniform in its properties than sawn lumber of the same cross- sectional dimensions
  • the invention comprises in one embodiment a tongue and groove floorboard made of laminated veneer lumber
  • the floorboard comprises a top outer veneer, at least three interior veneers and a bottom outer veneer
  • the top outer veneer is formed from a wood which has a good wearing capability and/or good appearance.
  • it is formed from hardwood
  • all veneers have their grains aligned in the longitudinal direction of the board
  • the floorboard is profiled with a tongue and groove, having on one side of its transverse profile a tongue, and on the other side a groove to mate with the tongue of an adjacent similar board, so that adjacent boards can be assembled together in a tongue and groove relationship.
  • the floorboard has longitudinal edges of other complementary forms which mate or interlock with like boards adjacent to them
  • the invention also relates to a method for making a floorboard, which comprises selecting at least five veneer sheets, drying said veneer sheets, giuing them together to make a billet, sawing the billet into boards and profiling boards so obtained with complementary longitudinal edges so that like boards can mate or interlock
  • the complementary shapes are a tongue on one longitudinal edge and a groove on the opposing longitudinal edge, said tongue and groove being sized for mating, such that adjacent boards having the same profile can be assembled in tongue and groove relation.
  • the top veneer is made of a wood which has desirable wearing or appearance qualities. The remaining veneers can be made of a cheaper wood.
  • the invention also relates to a method for making wood floors, in which tongue and groove floorboards according to the invention are nailed directly to joists, without a subfloor. Description of the Drawings
  • FIGURE 1 (which comprises SUBFIGURES 1A to 1F) is a schematic diagram of a process for making floorboards according to the invention.
  • FIGURE 2 is a perspective view of a floorboard according to the invention.
  • FIGURE 3 is a perspective view of a floor made according to the invention.
  • FIGURE 4 is a detail along the lines 4-4 of Figure 3.
  • FIGURES 5 and 6 are end views of additional embodiments of floorboards according to the invention Detailed Description of the invention
  • a floorboard is assembled from veneers, with optional other layers as described below.
  • the veneers are made in known fashion by peeling logs.
  • veneer can be made using machinery supplied by Dura ⁇ d- Raute Industries Ltd. of New Riverside, B.C. Such equipment includes debarking machinery for removing the bark from logs, lathes or spindleless lathes for turning the logs and peeling a veneer of substantially constant thickness from the logs, and veneer drying equipment for drying the veneers
  • the veneers are dried in a veneer drier to a dryness sufficient so that the glues used for assembling the veneers together will bond.
  • glues used for assembling veneers do not bond well when more than about 10% water content is in the veneers. Therefore, it is usually desired to dry the veneers to a water content of below 10%, preferably about 7% - 8%.
  • veneer sheets are chosen for assembly. At least four veneer sheets are chosen. These will be giued together in face-to-face relationship The number of sheets chosen to be assembled to form the product will depend on what its ultimate use will be, and also to some extent on aesthetic factors
  • the sheets, once glued together, are known as plies A minimum of four plies is needed to give the product strength. Generally, strength increases with the number of plies, if all plies are of the same species and wood quality The quality and the species of the wood also affect strength as is well known in the LVL art
  • the veneer sheet which will form the top outer face of the product is chosen to be one which has desirable wearing properties or a desirable appearance
  • the top face is the portion of the floorboard which will be most readily seen after assembly, and also because it forms the wear surface.
  • the top sheet is a hardwood veneer of a species frequently used for floorboards, such as maple or birch.
  • the remaining veneers can be of a less expensive wood, such as a softwood. For example, lodgepole pine is cheap and reasonably durable.
  • the sheet which will form the bottom face of the board also be substantially knot and blemish free, as when the board is used as part of a floor according to the invention, it may in some installations be visible from below.
  • the veneers chosen preferably all have their grain running in the same direction, in the direction which will form the longitudinal direction of the finished decking boards.
  • each veneer has two different faces, known as the "tight” and “loose” face.
  • the "tight" face is the surface which was farther away from the centre of the log when the veneer was peeled from the log. Wood fibres tend to be closer together on this face than on the opposite, or "loose", face. It is preferred, as known in the LVL art, to arrange (or “lay up") the veneers so that loose faces are glued to loose faces, and tight faces are glued to tight faces, as this is found to reduce splitting, cracking or curling of the product and its external veneers
  • the veneers are of conventional thickness, being either 1/10", 1/8" or 1/6".
  • all veneers are of the same thickness in any one board The veneers are not crushed appreciably during manufacture of the board product, so the finished product has plies of approximately the thickness of the veneers chosen
  • the veneer sheets can be replaced with a sheet of some other suitable material.
  • a sheet of oriented wood strands glued together, such as is used in the making of oriented strand board (OSB) can be used Obviously, the OSB sheet should not replace the top veneer, as it is desirable to have a hard wearing wood veneer surface for the floor
  • Each of the interior veneers is coated on both faces with adhesive, and each of the top and bottom veneers is coated with adhesive on the face which will contact the face of an interior veneer. Alternately, it is possible to coat only one face
  • the adhesive should preferably be one which is moisture resistant after it bonds. It is preferred to use a thermo-setting adhesive which is not sticky until heat activated, as this facilitates the handling and positioning of the sheets Suitable adhesives are phenolic adhesives, such as phenolic PF20/20 (trademark) manufactured by the Borden Chemical Company of Belleview, Washington, or phenol resorcinot adhesives, such as LT75 (trademark) manufactured by the Borden Chemical
  • isocyanate adhesives but these are generally not preferred because they are more costly than the phenolics or phenol resorcinols.
  • isocyanates There are certain advantages to use of isocyanates, however, as they can cure faster under heat and pressure than the phenol resorcinol or phenol formaldehyde glues, and because they are moisture resistant.
  • a suitable isocyanate glue is PMDI, manufactured by ICl Chemicals Ltd., which is a polymethyl di-isocyanate glue.
  • the amount of adhesive coated on the faces of the veneers is as is known in the art of LVL manufacture, and follows the recommendations of adhesive manufacturers recommend how much of their particular adhesive should be applied.
  • the recommended coating is 30 to 34 pounds per 1000 square feet of surface to be bonded.
  • the veneers are assembled in face-to-face aligned relationship. They are then held together with heat and pressure to bond the adhesive. Suitable temperatures and pressures are those recommended by the adhesive manufacturer. For example, when phenolic adhesives are used, a pressure of about 180 psi is applied to the sheets at a temperature of about 300 ⁇ F. When phenol resorcinol adhesives are used, a pressure of about 180 psi is preferably applied to the sheets at a temperature of about 200 degrees F.
  • the sheets After the sheets have been bonded together, they form a block of wood known as a billet.
  • the billet is then sawn parallel to the grain of the sheets (or the majority of the sheets) into strips suitable for the intended final use
  • the width of the strips into which the billet is sawn depends upon the desired width of the floorboards to be made from it.
  • floorboards typically have a width of between 1 " and 6"
  • the width to which each strip is sawn is about 1/4 inch greater than the width of the finished floor board, to provide material for the making of the tongue in a subsequent step
  • This subsequent step is earned out immediately after, using a moulder or profiling saw
  • the strips are passed through this saw, so that a tongue is placed in one longitudinal edge of the strips, and a matching groove in the opposite longitudinal edge of the strip
  • the strips are dried if necessary to achieve a desired humidity level
  • the desired humidity will depend on the climate in which the flooring is to be used.
  • flooring have a humidity level which is not greater than that of the surrounding air, to prevent it from drying out and cracking
  • a humidity level of 15% to 18% is satisfactory.
  • Humidity levels can be determined by taking a small sample of the product, weighing it, heating it until all water is driven off, and weighing it again The loss in weight is equivalent to the weight of water in the original sample, and from this the % moisture content of the original sample can be calculated In some cases, the humidity level of the wood is already at an acceptable level, and drying is not necessary
  • drying is appropriate, this can be done in a drying kiln if desired, but it is usually quicker to remove moisture by applying a vacuum
  • the strips are loaded into a pressure vessel In the pressure vessel, a vacuum is created to remove moisture from the wood.
  • the exact amount of vacuum used for the vacuum treatment is not critical. Generally, a vacuum treatment of from 15 to 50 minutes at an absolute pressure of 15 to 20 inches of mercury is suitable, depending on the moisture content of the wood.
  • FIG. 1 shows the process of the invention in a diagrammatic form.
  • a veneer sheet 10 is made in known fashion, as by peeling a log 12 using a lathe knife 14 to peel off the veneer ( Figure 1 A). This may be done on several types of equipment, such as spindled or spindleless lathes, and does not form a part of this invention.
  • the prevailing grain of the wood is shown schematically at 16.
  • the veneer is split into sheets of suitable size 18 by a suitable knife blade
  • the sheets 18 are then dried in a veneer drier 22 ( Figure 1B) if necessary to reduce the moisture level to one at which bonding with a suitable adhesive can take place. As mentioned previously, this is 10% moisture or less for most commercially available adhesives.
  • Suitable veneers are then assembled for the product which is to be made. This is known as “laying up " the product.
  • the lay up is a continuous process, and veneers are joined together end-to-end to make continuous sheets which are run together in an assembly line with the subsequent steps to make very long billets of veneer, which are then cut to size at the end of the assembly line.
  • the laying up is done by manually selecting and orienting sheets, As Figure 1 is intended to be diagrammatic of the process, not to show particular apparatus for continuous or discontinuous operation, the illustration will show sheets of discrete size rather than continuous sheets for ease of illustration.
  • the veneers for a particular product are chosen and "laid up".
  • a top veneer 24 As mentioned, this is a veneer which is substantially free of knots or other imperfections. It is also preferably of a wood which is prized for floor boards, such as birch or maple.
  • the remaining veneers may be any of the species which are usually used in the making of plywood or LVL.
  • the grain of at least the majority of the sheets (preferably all of the sheets, as in the illustration) run in the same direction, as shown by grain lines 16. This direction will become the longitudinal direction of the product to be made.
  • the product is to have a 5 veneer thickness.
  • the bottom veneer 32 is also chosen as being one with few knots or other surface imperfections.
  • the veneers which will form the interior layers, 26, 27 and 30, need not be of such good quality and for example, in veneer 28 there are several knots 38 shown.
  • top veneer a veneer of a species commonly used for LVL or plywood. If this is done, the top veneer is generally selected to be one with a pleasing appearance, for example one without many knots or imperfections. If the underside of the flooring will be seen after installation, the bottom veneer is chosen so that its outward-facing face is of a pleasing appearance as well. For example, a veneer of the same hardwood used for the top veneer could be used as the bottom veneer. In the drawing of veneer sheet 30, it is illustrated that the veneer need not be one single piece. Veneer 30 is actually two veneers 40 and 42 which have been joined together by joint 44. Joint 44 is what is known as a scarf joint, which means that it is cut at an angle to thickness of the wood.
  • Adhesive is sprayed onto the upper surface of sheet 32 by adhesive sprayer 46. It is possible to spray adhesive on only the upper surface of each of the sheets 32, 30, 28 and 26. Alternately, it is possible to spray adhesive onto the upper surface of the sheets 32, 30, 28 and 26 and to have another adhesive sprayer or roller coater (not shown) apply adhesive onto the bottom of sheets 30, 28, 26 and 24.
  • the five sheets are then assembled in face-to-face relationship, and are subjected to heat and pressure in a press 48.
  • This press 48 has platens 50 and 52 which press the sheets together and activate the thermo-setting adhesive, to form a block-like form 54 known as a billet.
  • This billet is comprised of the glued together sheets (now known as plies).
  • the billet is then passed through a gang of saws 56, ( Figure 1 E) which cut it into strips of the desired width. As mentioned, this width varies with respect to the desired product.
  • the strips are then given a desired profile along their longitudinal edges.
  • Figure 2 shows a floorboard according to the invention, with a tongue and groove profile.
  • This board has 9 plies, rather than the five plies shown in Figure 1.
  • the thickness has been greatly over-emphasized with respect to the length and width.
  • such a board would be about 2" in width, 1 1/8" in thickness and would have a length of from 2' to 20'.
  • the board is shown at 170.
  • a top ply 172 of a wood having good wearing properties and good appearance and 8 other plies, generally indicated as 174
  • pieces of veneer have been joined end-to-end to make a ply by either a scarf joint, as shown at 176, or a butt joint (vertical to the surface of the ply) as shown at 178.
  • a tongue 180 runs longitudinally along one side edge of the board, and a groove 182 runs along the other side edge.
  • the tongue and groove are sized so that when two similar boards are placed side by side, the tongue of one fits into the groove of the other.
  • the tongue is large enough so that it is formed of more than one ply (to improve its strength), and in the illustration it is formed of three plies.
  • Figure 3 shows a floor, for example on the second story of a house, constructed according to the invention.
  • Horizontal beams 250 are spanned by parallel joists 258.
  • joists 258 are spaced on 16" centres.
  • tongue and groove floorboards 170 made according to the invention are laid directly on the joists, with their top plies 172 uppermost.
  • the detail in Figure 4 shows how they are nailed to the joists by nails 204. This nailing technique is the same as is used in attaching tongue and groove floor boards to a subfloor. However, because of the strength of the floor boards made according to the invention, no subfloor is needed.
  • the flooring according to the invention can be of any thickness which is suitable for the spacing between joists 258. If the joists are spaced on 16" centres from one another, a floor board of 5 plies of 1/8" veneer is suitable, making a thickness of 5/8". If wider spacings are preferred, such as 24", then 9 plies, for a total of 1 1/8" is preferred.
  • the flooring of the invention can be assembled without a subfloor leads to great savings in material and labour costs.
  • the material cost of the subfloor is avoided, as is the labour cost to put it in place.
  • the flooring disclosed to this point in the disclosure has a conventional mating tongue and groove. This is preferred because it is a pattern which
  • the invention in its broad embodiments therefore comprises any LVL floorboards which have edges which mate or interlock when like boards are assembled in side-by-side relationship.
  • the invention also comprises the floor that results when such boards are assembled together directly on joists, without a subfloor.

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  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Wood Science & Technology (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Forests & Forestry (AREA)
  • Floor Finish (AREA)

Abstract

Cette invention a trait à la fabrication d'une planche de plancher (170) formée à partir d'une pièce de bois d'oeuvre de placage stratifié pourvue d'une couche supérieure de bois de placage (172) permettant la confection d'un revêtement de sol et le profilage des bords selon un mode d'appariement adapté. L'invention porte également sur divers profils, notamment des languettes (180) et des gorges (182) d'assemblage, ainsi que sur des configurations d'assemblage. Un plancher confectionné avec ces nouvelles planches peut être directement installé sur des solives sans faux-plancher, ce qui permet de réaliser des économies en matière de matériau et de main d'oeuvre.
PCT/CA1997/000224 1996-04-10 1997-04-09 Planche de plancher fabriquee a partir de bois d'oeuvre de placage stratifie WO1997038187A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU22827/97A AU2282797A (en) 1996-04-10 1997-04-09 Floorboard made from laminated veneer lumber

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US63080496A 1996-04-10 1996-04-10
US08/630,804 1996-04-10

Publications (1)

Publication Number Publication Date
WO1997038187A1 true WO1997038187A1 (fr) 1997-10-16

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ID=24528628

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CA1997/000224 WO1997038187A1 (fr) 1996-04-10 1997-04-09 Planche de plancher fabriquee a partir de bois d'oeuvre de placage stratifie

Country Status (3)

Country Link
AU (1) AU2282797A (fr)
CA (1) CA2178530A1 (fr)
WO (1) WO1997038187A1 (fr)

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1944158A3 (fr) * 2003-12-04 2008-10-15 AWI Licensing Company Stratifié contreplaqué doté d'une stabilité dimensionnelle et d'une résistance à la déformation et au délaminage améliorées
WO2009014492A1 (fr) * 2007-07-25 2009-01-29 Perennial Brazil Comercio De Madeiras Ltda Plates-formes multicouches et panneaux utilisant une telle plate-forme
WO2013162460A1 (fr) * 2012-04-26 2013-10-31 Välinge Innovation AB Panneaux de construction en bois massif
CN103437530A (zh) * 2013-09-06 2013-12-11 常熟市龙鼎装饰工程有限公司 易拼接底板
US8875464B2 (en) 2012-04-26 2014-11-04 Valinge Innovation Ab Building panels of solid wood
US8935899B2 (en) 2012-02-02 2015-01-20 Valinge Innovation Ab Lamella core and a method for producing it
WO2015087223A1 (fr) * 2013-12-10 2015-06-18 Stora Enso Oyj Procédé pour fabriquer un élément de construction préfabriqué
US9140010B2 (en) 2012-07-02 2015-09-22 Valinge Flooring Technology Ab Panel forming
US9194135B2 (en) 2002-04-08 2015-11-24 Valinge Innovation Ab Floorboards for floorings
CN106013715A (zh) * 2016-05-09 2016-10-12 南京林业大学 一种桉木单板层积材生产的复合地板及其制备工艺
US9975267B2 (en) 2013-08-27 2018-05-22 Valinge Innovation Ab Method for producing a lamella core
US12264482B2 (en) 2012-07-02 2025-04-01 Ceraloc Innovation Ab Panel forming

Citations (11)

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US2257048A (en) * 1940-09-07 1941-09-23 Clarence C Fulbright Ply wood floor block
GB852547A (en) * 1958-01-27 1960-10-26 Insularbo Ltd Improvements in or relating to composite wood material
US3016316A (en) * 1958-12-22 1962-01-09 Arnold P Olson Laminated board construction
DE8609563U1 (de) * 1986-04-09 1986-09-11 Biehrer, Fridolin, 7831 Sexau Mehrschicht-Holzbodenplatte
FR2618826A1 (fr) * 1987-07-29 1989-02-03 Boisne Jack Element autoporteur du type multicouche en materiau ligneux pour la realisation de plancher
US5040582A (en) * 1990-06-22 1991-08-20 Forintek Canada Corp. Multi species laminated veneer lumber
US5103614A (en) * 1987-05-12 1992-04-14 Eidai Industry Co., Ltd. Soundproofing woody flooring
EP0487925A1 (fr) * 1990-11-28 1992-06-03 WASA Massivholzmöbel GmbH Plancher laminé
DE9301761U1 (de) * 1993-02-09 1993-04-22 Schneider, Alois, 7091 Stödtlen Winkelnagel zum verdeckten Befestigen von vornehmlich Holzverkleidungen
US5411066A (en) * 1993-10-29 1995-05-02 Tsuda; Sotaro Method of producing veneer
US5439749A (en) * 1994-08-18 1995-08-08 Andersen Corporation Composite wood structure

Patent Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2257048A (en) * 1940-09-07 1941-09-23 Clarence C Fulbright Ply wood floor block
GB852547A (en) * 1958-01-27 1960-10-26 Insularbo Ltd Improvements in or relating to composite wood material
US3016316A (en) * 1958-12-22 1962-01-09 Arnold P Olson Laminated board construction
DE8609563U1 (de) * 1986-04-09 1986-09-11 Biehrer, Fridolin, 7831 Sexau Mehrschicht-Holzbodenplatte
US5103614A (en) * 1987-05-12 1992-04-14 Eidai Industry Co., Ltd. Soundproofing woody flooring
FR2618826A1 (fr) * 1987-07-29 1989-02-03 Boisne Jack Element autoporteur du type multicouche en materiau ligneux pour la realisation de plancher
US5040582A (en) * 1990-06-22 1991-08-20 Forintek Canada Corp. Multi species laminated veneer lumber
EP0487925A1 (fr) * 1990-11-28 1992-06-03 WASA Massivholzmöbel GmbH Plancher laminé
DE9301761U1 (de) * 1993-02-09 1993-04-22 Schneider, Alois, 7091 Stödtlen Winkelnagel zum verdeckten Befestigen von vornehmlich Holzverkleidungen
US5411066A (en) * 1993-10-29 1995-05-02 Tsuda; Sotaro Method of producing veneer
US5439749A (en) * 1994-08-18 1995-08-08 Andersen Corporation Composite wood structure

Cited By (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9194135B2 (en) 2002-04-08 2015-11-24 Valinge Innovation Ab Floorboards for floorings
EP1944158A3 (fr) * 2003-12-04 2008-10-15 AWI Licensing Company Stratifié contreplaqué doté d'une stabilité dimensionnelle et d'une résistance à la déformation et au délaminage améliorées
WO2009014492A1 (fr) * 2007-07-25 2009-01-29 Perennial Brazil Comercio De Madeiras Ltda Plates-formes multicouches et panneaux utilisant une telle plate-forme
CN101878113A (zh) * 2007-07-25 2010-11-03 普瑞尼尔巴西木材贸易有限公司 多层基板和使用这种基板的贴面板
EP2170601A4 (fr) * 2007-07-25 2012-07-04 Perennial Brazil Com De Madeiras Ltda Plates-formes multicouches et panneaux utilisant une telle plate-forme
US8647749B2 (en) 2007-07-25 2014-02-11 Perennial Brazil Comercio De Madeiras Ltda Multi-ply platforms and panels using such a platform
US9758966B2 (en) 2012-02-02 2017-09-12 Valinge Innovation Ab Lamella core and a method for producing it
US8935899B2 (en) 2012-02-02 2015-01-20 Valinge Innovation Ab Lamella core and a method for producing it
WO2013162460A1 (fr) * 2012-04-26 2013-10-31 Välinge Innovation AB Panneaux de construction en bois massif
US8875464B2 (en) 2012-04-26 2014-11-04 Valinge Innovation Ab Building panels of solid wood
US9663956B2 (en) 2012-07-02 2017-05-30 Ceraloc Innovation Ab Panel forming
US9140010B2 (en) 2012-07-02 2015-09-22 Valinge Flooring Technology Ab Panel forming
US9482015B2 (en) 2012-07-02 2016-11-01 Ceraloc Innovation Ab Panel forming
US9556623B2 (en) 2012-07-02 2017-01-31 Ceraloc Innovation Ab Panel forming
US12264482B2 (en) 2012-07-02 2025-04-01 Ceraloc Innovation Ab Panel forming
US9975267B2 (en) 2013-08-27 2018-05-22 Valinge Innovation Ab Method for producing a lamella core
CN103437530A (zh) * 2013-09-06 2013-12-11 常熟市龙鼎装饰工程有限公司 易拼接底板
WO2015087223A1 (fr) * 2013-12-10 2015-06-18 Stora Enso Oyj Procédé pour fabriquer un élément de construction préfabriqué
CN106013715A (zh) * 2016-05-09 2016-10-12 南京林业大学 一种桉木单板层积材生产的复合地板及其制备工艺
CN106013715B (zh) * 2016-05-09 2019-09-20 南京林业大学 一种桉木单板层积材生产的复合地板的制备工艺

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CA2178530A1 (fr) 1997-10-11

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