EP2067587A1 - Parkettstab und Herstellungsverfahren - Google Patents

Parkettstab und Herstellungsverfahren Download PDF

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Publication number
EP2067587A1
EP2067587A1 EP08170743A EP08170743A EP2067587A1 EP 2067587 A1 EP2067587 A1 EP 2067587A1 EP 08170743 A EP08170743 A EP 08170743A EP 08170743 A EP08170743 A EP 08170743A EP 2067587 A1 EP2067587 A1 EP 2067587A1
Authority
EP
European Patent Office
Prior art keywords
blade
parquet
strips
wood
natural
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP08170743A
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English (en)
French (fr)
Inventor
Manuel Da Cunha
Frédéric Marty
David Gillet
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Parquets Marty SAS
Original Assignee
Parquets Marty SAS
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 Parquets Marty SAS filed Critical Parquets Marty SAS
Publication of EP2067587A1 publication Critical patent/EP2067587A1/de
Withdrawn legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27M—WORKING OF WOOD NOT PROVIDED FOR IN SUBCLASSES B27B - B27L; MANUFACTURE OF SPECIFIC WOODEN ARTICLES
    • B27M3/00—Manufacture or reconditioning of specific semi-finished or finished articles
    • B27M3/04—Manufacture or reconditioning of specific semi-finished or finished articles of flooring elements, e.g. parqueting blocks
    • B27M3/06—Manufacture or reconditioning of specific semi-finished or finished articles of flooring elements, e.g. parqueting blocks of composite floor plates per se by assembling or jointing the parqueting blocks
    • 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
    • B27D1/10—Butting blanks of veneer; Joining same along edges; Preparatory processing of edges, e.g. cutting
    • 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
    • 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

  • the invention relates to the field of wooden floors, and in particular the field of laminated wood floors.
  • Solid wood floors are particularly appreciated for their warm and natural appearance.
  • the appearance provided by the veins of natural wood contributes a lot to the comfort of the user.
  • the floors can use noble species or exotic woods.
  • the high-end parquet is made of solid wood floorboards, long and wide.
  • high-end parquet boards are 2 meters long and longer, 18 cm wide and 10 to 30 mm thick.
  • Such parquet strips are particularly expensive because they require high quality logs and large size, or, if 18 cm blades are extracted from a log of 20 cm in diameter, it degrades the performance of use of the log.
  • Solid parquet flooring of intermediate range are for example 1 meter long and 5 to 8 cm wide. They cost less because they can be cut from smaller logs or from the corners of large logs not used for wide planks.
  • High-width and long-length laminated parquet boards are particularly popular. They are quick to install and look like planks of traditional solid wood flooring. Although the layers of noble wood used for laminated parquet flooring are thinner than in solid wood flooring, the logs required to obtain such parquet strips remain large.
  • the patent application FR 1 586 965 discloses a method for making wood panels of any width.
  • the patent application FR 2,243,794 describes a sliced plating process. Such methods are suitable for plating boards, plywood and not for noble wear layers of the floors.
  • the surface layer of parquet floor must be monobloc, with fibers oriented in the same direction. Thus, the aforementioned plating processes are not suitable for the manufacture of parquet flooring.
  • multi-leaf parquet strips exist, which comprise smaller surface lamellae juxtaposed laterally to each other and glued on an underlayer. Each of the lamellae assembled on the laminated blade is much cheaper than a wide blade.
  • multi-leaf laminated parquet boards have a checkerboard appearance corresponding to the appearance of an intermediate range of floors. Despite their lower cost, demand remains very strong for wide-width parquet boards.
  • the patent US 3,209,889 discloses a parquet panel consisting of several substantially square sub-panels. Each subpanel is formed by pairs of strips of wood whose threads form a mirror symmetry. Such strips of wood are small in both length and width. These strips of wood are assembled into panels giving the floor a checkerboard look. The strips of wood described in this document are not assembled in planks. The visual comfort effect is very different from traditional solid wood flooring.
  • the patent application DE 201 15 287 describes a floor made of sawn element, obtained from a board of larger dimension.
  • the document describes a method for assembling the individual elements while maintaining the appearance of the initial plank.
  • the initial plank is first cut longitudinally into individual slats.
  • a marking technique allows to longitudinally offset the slats before cutting them transversely to form individual floor elements of the same length, and much shorter than the initial board.
  • the individual elements are repositioned longitudinally as they were in the initial plank before sawing.
  • the slats are derived from a sawing of the board in its thickness, the slats are returned before being offset longitudinally and sawed into individual floor elements.
  • This technique allows that once assembled floor, the ends of the individual floor elements are offset and alternated longitudinally.
  • This process aims to facilitate the transport of the floor. It transforms a large wooden board into smaller individual floor elements of smaller size, both in length and width.
  • the disadvantage of such a process is to require for the initial board large logs. Although the appearance of the initial board is substantially preserved, the cost of obtaining it is not reduced.
  • the invention provides a floorboard blade having the appearance of large width blade but less expensive to obtain.
  • the method of manufacturing a wooden floorboard comprises a step of sawing a natural wood block so as to output at least two lamellae having similar natural patterns of veining, at least one edge common side resulting from the same sawing operation of the block of wood.
  • the second lamella is returned with respect to the line of the common side edge.
  • the two slats are positioned longitudinally with respect to each other so that the similar natural patterns coincide on the line of the common side edge.
  • the veins of a block of wood evolve continuously throughout the cross section with respect to the principal direction of the fibers.
  • two strips that were adjacent or close to each other in the same block of wood before being cut have after cutting very similar patterns.
  • the position of a node is in the same place in the two neighboring lamellae.
  • their side flank has the same veining patterns. It is possible to make them coincide and the external appearance of the set of two slats has a continuity of appearance as if they came from the same plank or a double width plank.
  • the two slats are glued by their common side edge, pressing them against each other.
  • the continuity of appearance is improved by the fact that the two strips are not only contiguous after reversal and longitudinal positioning, but also glued together under pressure, so as to virtually disappear any gaps between the two strips. For example, only one node remains on the line of the common lateral field.
  • the quality of the assembly of the lateral common field contributes greatly to minimizing the visibility of the joint between the two lamellae and increases the impression of visual continuity of the pattern of veining on the whole board.
  • the fact of sticking the slats on their common lateral fields is all the more important as these are of great lengths. Indeed, the slats from the natural wood block are preserved with the greatest possible length so as to form boards composed of a pair of slats, of larger dimension possible for a given log.
  • said two strips are counter-glued against a common central core.
  • laminated floorboards are more dimensionally stable, especially in the direction of the width of the board. Indeed, during variations in humidity of the ambient air, a board of natural wood swells more in the direction transverse to the natural fibers of the wood than in the axis of the fibers.
  • solid wood floorboards are rectangular with natural wood fibers oriented generally along the length of the board. In traditional solid wood flooring, it is difficult for the floorboards to be joined due to the swelling or retraction of the adjacent floorboards.
  • the laminated parquet boards have the advantage of being more dimensionally stable because the underlayment can have a better dimensional stability during humidity variations.
  • a floorboard composed of two laminates laminated on a common central core has both the advantage of continuity of appearance between the two strips, while introducing a mechanical flexibility at the location of the common lateral field.
  • the bulge of the blade is reduced and transformed into two small bulges of each of the two lamellae. This greatly improves the average flatness of such a parquet board.
  • complementary fastening forms are machined on the lateral ends of the two lamellae.
  • the invention also relates to a wooden floorboard.
  • the blade comprises two strips from the same block of natural wood so as to have similar natural patterns of veining.
  • the two lamellae are contiguous one against the other by a common side edge after reversal and longitudinal positioning of one with respect to the other so that the pattern of the natural veins of the blade has substantially symmetry with respect to the common lateral edge line.
  • the floorboard comprises complementary hooking means located on the lateral sides of the blade and intended to cooperate with corresponding means of another floorboard blade.
  • the floorboard comprises a common central core on which said two lamellae are laminated, at least one integral part of the central core extending over most of the width of the two lamellae.
  • the floorboard comprises a backing layer extending on one face of the floorboard opposite to the natural wood lamellae.
  • the floorboard is of rectangular shape. Said two strips have an identical thickness and a length equal to the length of the blade.
  • the width of the two slats is half the width of the blade.
  • the two strips are monobloc.
  • the length is greater than 100 mm, preferably greater than 140 mm, in particular greater than 180 mm.
  • the ratio of the length to the width is between 5 and 15 and preferably between 9 and 11.
  • the material of the natural wood block from which the two slats are derived is a noble species such as oak, beech, maple, chestnut, or an exotic species such as jatoba, doussie , merbau, iroko, kosipo, or wenge.
  • a noble species such as oak, beech, maple, chestnut, or an exotic species such as jatoba, doussie , merbau, iroko, kosipo, or wenge.
  • a natural wood block 1 of elongated parallelepipedal shape has growth veins 2 of natural wood.
  • Such a block of wood 1 has previously been cut from a log.
  • the length of the block 1 is oriented parallel to the direction of the shaft, so that the growth grooves 2 are generally oriented in the direction of the length of the natural wood block 1.
  • a cross section 3 of the natural wood block 1 corresponds to a portion of the cross section of the log.
  • the cross section may for example be cut in a radius of the cross section of the log. It is also possible to extract the block of wood 1 by a wake of the log in blocks.
  • Natural wood has knots 4 which generally correspond to starting points of branches.
  • lamellae 5a, 5b, 5c, 5d of identical thickness which can vary from 2.5 to 6 mm, for example, depending on the type of floorboards to be manufactured.
  • each of the lamellae 5a, 5b, 5c, 5d has at least one side field 6a, 6b, 6c, 6d particularly rectilinear.
  • the nodes 4 and streaks or growth veins 2 evolve gradually in the direction of the thickness of the block of wood 1.
  • the slats 5a, 5b, 5c, 5d have similar veining patterns.
  • each pair consists of two lamellae 5a, 5b as similar as possible.
  • the lamella 5b is turned over with respect to the lamella 5a so that the corresponding lateral fields 6a and 6b are henceforth facing each other.
  • the upside-down lamella 5b ' is positioned in front of the lamella 5a. This has the effect that the vein patterns 2a of the leaflet 5a and 2b of the upside-down lamella 5b 'coincide and have a continuity at the location of the common lateral field 6a, 6b. All the growth lines that open into the lateral field 6a or 6b find in the opposing lamella a corresponding growth line, so that the whole exhibits a continuity of the growth streak 2a, 2b. This helps to form a continuous and harmonious pattern and to visually remove the side field assembly 6a, 6b.
  • pairs of lamellae 5a, 5b ' are made and prepositioned with respect to each other, they are assembled edge to edge by affixing a net of glue on the field 6a or 6b and by pressing the lamellae 5a, 5b' on all four sides.
  • the lamella 5a has a lateral field 11a opposite to the side field 6a, and the lamella 5b 'has a side field 11b opposite the side field 6b.
  • the common lateral fields 6a, 6b are opposite one another, pressure is exerted on the lateral fields opposed 11a, 11b, while the top and bottom faces as well as the high sides and the low sides of each of the two strips 5a and 5b are held in position.
  • the pair of lamellae 5a, 5b ' form a floorboard 7. It can be positioned in a high frequency press.
  • a high frequency system or a high temperature system allows rapid curing of the adhesive at the location of the lateral common field 6a, 6b.
  • the quality of the assembly of the lateral common field 6a, 6b contributes greatly to minimizing the visibility of the joint between the two strips 5a, 5b 'and to allow a continuous drawing of the parquet board 7.
  • a laminated floorboard 15 consists of a facing layer or wear layer 12, a central core 13 and a backing layer 14.
  • the wear layer 12 is made of wood hard with fibers oriented in the direction of the length of the blade and its thickness is at least 2.5 mm.
  • the wood used can be a noble species such as an oak, or wood benches such as beech or maple, or chestnut.
  • the wood used can also be exotic wood such as jatoba, doussie, merbau, iroko, kosipo, moabi or wenge.
  • the wear layer 12 is constituted by all the previously assembled strips 5a, 5b '.
  • the central core 13 may be an odd-numbered plywood plate, each of the layers of the plywood plate having fibers oriented at 90 ° to the fibers of the adjacent layer. Thus, the moisture behavior of the central core 13 is identical in all directions. This greatly improves the dimensional stability of the parquet board 15.
  • the central core 13 may also use wood panels or HDF material of high fiber density plates.
  • the backing layer 14 also contributes to good dimensional stability and avoids the deformations of the parquet board 15. It can be a layer of 1 to 2 mm, resinous wood or cheese wood from Africa.
  • the three wearing layers 12, central core 13, and counter-facing 14 are assembled by gluing to form the single-piece parquet board.
  • a groove 16 is provided on one side of the floorboard 15 and a corresponding tongue 17 is formed on the opposite side. It is also possible to use glue-free assembly systems or other types of fastening conventionally used in parquet boards.

Landscapes

  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Wood Science & Technology (AREA)
  • Architecture (AREA)
  • Forests & Forestry (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Floor Finish (AREA)
EP08170743A 2007-12-04 2008-12-04 Parkettstab und Herstellungsverfahren Withdrawn EP2067587A1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR0759557A FR2924374B1 (fr) 2007-12-04 2007-12-04 Lame de parquet et procede de fabrication.

Publications (1)

Publication Number Publication Date
EP2067587A1 true EP2067587A1 (de) 2009-06-10

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ID=39496218

Family Applications (1)

Application Number Title Priority Date Filing Date
EP08170743A Withdrawn EP2067587A1 (de) 2007-12-04 2008-12-04 Parkettstab und Herstellungsverfahren

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EP (1) EP2067587A1 (de)
FR (1) FR2924374B1 (de)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102248570A (zh) * 2011-07-10 2011-11-23 浙江省林业科学研究院 一种内外成型的木竹质空心板及其制造方法
CN113719065A (zh) * 2016-07-29 2021-11-30 地板工业有限公司 人字形表面装饰材料及其制造方法

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH255650A (de) * 1947-04-05 1948-07-15 Eggstein Julius Stirnholzparkettboden.
US3209889A (en) 1962-02-16 1965-10-05 Metzger Hans Otto Apparatus for arranging parquet panel
FR1586965A (de) 1966-10-27 1970-03-06
FR2243794A1 (de) 1973-09-17 1975-04-11 Sadashige Takeshi
WO2000074911A1 (de) * 1999-06-07 2000-12-14 Hamberger Industriewerke Gmbh Parkettlamelle, deren verwendung zur herstellung eines paneels oder parkettelementes, sowie hieraus hergestelltes parkettelement und verfahren zur herstellung einer parkettlamelle
DE20115287U1 (de) 2001-01-12 2002-01-10 Kirstein Thomas Fußbodenbelag
WO2004006874A1 (en) 2002-07-10 2004-01-22 Unilever N.V. Hair treatment compositions
EP1607178A2 (de) * 2004-06-10 2005-12-21 Houtindustrie Schijndel B.V. Verfahren zur Herstellung von Holzelementen

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH255650A (de) * 1947-04-05 1948-07-15 Eggstein Julius Stirnholzparkettboden.
US3209889A (en) 1962-02-16 1965-10-05 Metzger Hans Otto Apparatus for arranging parquet panel
FR1586965A (de) 1966-10-27 1970-03-06
FR2243794A1 (de) 1973-09-17 1975-04-11 Sadashige Takeshi
WO2000074911A1 (de) * 1999-06-07 2000-12-14 Hamberger Industriewerke Gmbh Parkettlamelle, deren verwendung zur herstellung eines paneels oder parkettelementes, sowie hieraus hergestelltes parkettelement und verfahren zur herstellung einer parkettlamelle
DE20115287U1 (de) 2001-01-12 2002-01-10 Kirstein Thomas Fußbodenbelag
WO2004006874A1 (en) 2002-07-10 2004-01-22 Unilever N.V. Hair treatment compositions
EP1607178A2 (de) * 2004-06-10 2005-12-21 Houtindustrie Schijndel B.V. Verfahren zur Herstellung von Holzelementen

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102248570A (zh) * 2011-07-10 2011-11-23 浙江省林业科学研究院 一种内外成型的木竹质空心板及其制造方法
CN113719065A (zh) * 2016-07-29 2021-11-30 地板工业有限公司 人字形表面装饰材料及其制造方法
CN113719065B (zh) * 2016-07-29 2023-04-25 地板工业有限公司 人字形表面装饰材料及其制造方法

Also Published As

Publication number Publication date
FR2924374B1 (fr) 2014-02-07
FR2924374A1 (fr) 2009-06-05

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