EP2367989B1 - Verfahren zur herstellung von baueinheiten für möbel - Google Patents

Verfahren zur herstellung von baueinheiten für möbel Download PDF

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Publication number
EP2367989B1
EP2367989B1 EP09771563.5A EP09771563A EP2367989B1 EP 2367989 B1 EP2367989 B1 EP 2367989B1 EP 09771563 A EP09771563 A EP 09771563A EP 2367989 B1 EP2367989 B1 EP 2367989B1
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EP
European Patent Office
Prior art keywords
board
laths
fiber
arranging
distance
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EP09771563.5A
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English (en)
French (fr)
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EP2367989A2 (de
Inventor
Benny Andersson
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Inter Ikea Systems BV
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Inter Ikea Systems BV
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Publication of EP2367989A2 publication Critical patent/EP2367989A2/de
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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
    • E04C2/34—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 composed of two or more spaced sheet-like parts
    • E04C2/36—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 composed of two or more spaced sheet-like parts spaced apart by transversely-placed strip material, e.g. honeycomb panels
    • E04C2/365—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 composed of two or more spaced sheet-like parts spaced apart by transversely-placed strip material, e.g. honeycomb panels by honeycomb structures

Definitions

  • This invention pertains in general to the field of a manufacturing method of an article for the manufacturing of furniture.
  • lignocellulose-containing material such as particle boards and fibreboards according to the dry method (MDF, HDF, LDF etc.).
  • the lignocellulose-containing material is first disintegrated into particles or fibre bundles. Subsequently these are dried and glue-coated and formed to a continuous mat in one or several forming stations. The mat is pre-pressed and subsequently finish-pressed to boards under pressure and heat in a continuous or discontinuous press. These boards are then adhered/attached on a frame of wood, to produce the product for withstanding vertical load.
  • the space defined by the boards and the frame is filled with a distance material, such as honeycomb structure or the like.
  • the low density of MDF, HDF, LDF, etc. results in the need of great amounts of paint, stain etc., when painting/staining the board product, since the surface of the product absorbs a lot of paint, and thus, several layers of paint are required.
  • DE 102004007225 B3 shows a method and a device for producing sandwich boards for the furniture industry.
  • CN 201212293 Y describes a cellular sandwich composite plate used for furniture.
  • the plate comprises an upper fibreboard, a lower fibreboard and a sandwich layer arranged between the fiberboards.
  • FR 2239573 A2 is considered as the closest prior art and shows sandwich panels comprising upper and lower sheets.
  • the panels have edge stiffening means allowing interconnection of panels.
  • WO 90/04515 describes a method wherein such units are sawn across the laths in a transversal plane in respect of the longitudinal axis of the laths, such that a number of elongated pieces with rectangular cross section are obtained, where after said pieces are rotated 90 degrees about their longitudinal axis and positioned parallel to each other on a third glue coated panel and covered with a fourth glue coated panel. Thereafter, the third and the fourth panel are subjected to pressure and glued together with the pieces in between. Finally, the unit thus produced is sawn along and between the elongated pieces.
  • the obtained product is however still comparatively heavy, since at least two sides, i.e. the ends, are made entirely of wood, particle board, or the like, not being of a light weight material, such as a distance material. Also, only parts of the product having pieces of laths underneath will be suitable for mounting elements thereon.
  • an improved composite board product would be advantageous, and in particular a board product having a comparatively low density, allowing for decreased weight of the product, resulting in a cost-effective manufacturing and transportation procedure, while still allowing for the possibility to rigidly attach other parts, such as armature, fittings, screw members etc, on parts not necessarily having parts of laths underneath, would be advantageous.
  • the present invention preferably seeks to mitigate, alleviate or eliminate one or more of the above-identified deficiencies in the art and disadvantages singly or in any combination and solves at least the above mentioned problems by providing methods for manufacturing of an article for the manufacturing of furniture, according to claim 1 or 2.
  • Fig. 1 illustrates a perspective view of an article 100 not forming part of the invention.
  • the article 100 is manufactured by arranging at least two laths 101, 102 on a first board 103, such as a fiber board, such as a HDF or MDF board.
  • the laths 101, 102 are preferably arranged parallel to each other, extending longitudinally along two opposite sides/edges of the first board 103.
  • additional laths may be arranged in parallel with the two laths 101, 102 on said first board 103.
  • the laths may be adhered to the first board by gluing, or other suitable adhering method or means.
  • a first strip 104 of a fiber material may then be applied and/or adhered to the first board.
  • the strip may be arranged in parallel or perpendicular to the longitudinal extension of the laths 101, 102.
  • the fiber material may be flexible, such that it is possible to roll the product into a roll, whereby the applying of the first strip 104 on the first board may be performed by simply rolling the strip into place.
  • the strip 104 of a fibermaterial may be manufactured by a manufacturing method, wherein long, slim fibers are created by defibration of starting material, to make it rollable.
  • Starting material may be wooden chips made from any kind of wood, but also non-wooden material from e.g. one-year crops, such as straw and bagasse may be used.
  • the decomposition may for example be performed in a defibrator of known kind.
  • a defibator is a thermo-mechanical pulping refiner, in which the pulp material, such as wood chips, is ground in an environment of steam between a rotating grinding disc and a stationary disc each with radial grooves that provides the grinding surface.
  • Wood chips are fed into the centre and are broken down as the centrifugal force pushes them towards the circumference of the discs where the grooves are finer to produce wood fiber.
  • the decomposition is performed with an energy input in the in the range from 50 to 150 kWh/metric ton starting material. Said energy input is lower than most processes known within the art. This gives the advantage of slimmer/longer fibers, which is one of the factors providing a flexible fiber product.
  • the fibers that are created by the decomposition are substantially or dominantly slim fibers.
  • the term fibers both mean singular fibers and bundles of fibers. Fiber bundles are generally longer than single fibers.
  • the term slim fibers are fibers where the relationship between the length and the thickness is at least 20, i.e. 20:1. Fibers of lignocelluloses are mechanically decomposed from larger particles, such as wooden chips. This decomposition may take place in a rotating mill, followed by heating to different temperature levels. The decomposition process may be varied by addition of different amounts of energy. More energy added results in shorter fibers and less energy added results in longer fibers, when the rest of the process is the same.
  • the temperature needed for decomposition of fibers is in one example achieved by adding pressure in the form of e.g. saturated steam.
  • the added steam may then have a pressure of 5 to 11 bar.
  • the binder may be a glue selected from the group comprising urea-formaldehyde (UF), and melamine-urea-formaldehyde (MUF). Other glues may also be used, but then the temperature and pressure has to be adapted to the curing temperature of said other glue.
  • the fibers are then formed into a mat and compressed to desired density, such as from 300 to 750 kg/m 3 and thickness of below 3 mm, such as between 1 and 3 mm.
  • the compression may be performed in a continuous double band press, well known to a person skilled in the art, under continuous addition of hot steam.
  • the steam is supplied at 1 to 6 bar, whereby the mat may be heated all through to 100 to 150 °C and push out all air comprised in the mat.
  • the compression resistance of the mat is hereby reduced significantly. This results in a solid but flexible, fiber product with homogeneous density profile.
  • the fiber product may be rolled into a roll.
  • the fiber product may then be cut along the length of the fiber product into narrow bands or strips. Thereafter the bands may be rolled into a roll. This provides easy storage and handling.
  • the density of the fiber product after compression is homogenously 500 to 600 kg/m 3 , such as 550 kg/m 3 .
  • the density of the fiber product after compression is homogenously 500 to 600 kg/m 3
  • the strength and flexibility are such that the product conveniently may be rolled into rolls, and provide reinforcing properties to the fiber product.
  • the mat that is formed from fiber and binder may have a density between 30 and 50 kg/m 3 and a surface weight corresponding to the desired thickness and density of the fiber product after compression.
  • the transporter is continuously feeding the mat in a continuously working double band press where the mat is compressed and hot steam is injected into the mat.
  • the injection may be performed through both bands of the press, since these bands typically comprise perforated steel belts with wire, which allow passage of steam.
  • the distance between the bands is set to a value slightly higher than the desired thickness of the fiber product produced.
  • the temperature of the steam is set so that a temperature of the mat of between 100 and 150°C is achieved.
  • Most fiber products according to the state of the art are made in presses where the rollers are made of metal. The heating in these kinds of presses are achieved through conductivity, which heats the surface area more than the middle area.
  • the injection gives a quick heating of the mat and makes the mat stay in the compressed state, which provides a homogeneous density across the thickness of the fiber product.
  • a homogenous density makes the fiber product flexible.
  • the flexible fiber product has a substantially homogeneous density profile, i.e. substantially the same density across the thickness of the product.
  • the fiber product may be cut into strips before rolling.
  • the flexible fiber product may be cut by a scissors method, well known to a person skilled in the art.
  • a distance material 105 is applied onto the first strip 104 and in between the at least two laths 101, 102.
  • the distance material 105 may for example be a honeycomb material, such as a cellulose honeycomb material.
  • a second strip 106 of a fiber material may then be applied and/or adhered, by for example glue, to the distance material 105.
  • the strip 106 may be arranged in parallel or perpendicular to the longitudinal extension of the laths 101, 102, and the first strip 104.
  • a second board 107 may be applied and adhered to the laths 101, 102, the distance material 105, and the second strip 106.
  • the second strip 106 may preferably be made of the flexible fiber material according to above.
  • Fig. 1 provides the advantage that the surfaces of said first and second boards, being located on a part of the first and second board having a strip beneath, will be reinforced for receiving mounting means, such as screw members, armature, fittings, frames, etc., there at.
  • Fig. 2 illustrates a perspective view of an article 200 according to an embodiment of the present invention.
  • the article 200 is manufactured by arranging at least two laths 201, 202 on a first sheet of fiber material 203.
  • the first fiber material 203 may be a flexible fiber material according to above, or a fiber board, such as a HDF or MDF board.
  • the laths 201, 202 are preferably arranged parallel to each other, extending longitudinally along two opposite sides/edges of the first sheet of fiber material 203.
  • additional laths such as a lath 204 may be arranged in parallel with the two laths 201, 202 on said first sheet of fiber material 203.
  • the laths may be adhered to the first fiber material 203 by gluing, or other suitable adhering method or means.
  • a distance material 205 is applied onto the first sheet of fiber material 203 and in between the at least two laths 201, 202.
  • the distance material 205 may for example be a honeycomb material, such as a cellulose honeycomb material, as disclosed above.
  • a second sheet of fiber material 206 may be applied and adhered to the laths 201, 202, and the distance material 205.
  • the second fiber material 206 may be a flexible fiber material according to above, or a fiber board, such as a HDF or MDF board.
  • the obtained product is then sawn across the laths, i.e. sawn transversally of the longitudinal direction of the laths 201, 202.
  • a number of elongated pieces with rectangular cross-section and parts of laths 201, 202 distributed therein, in between distance material 205, are then obtained.
  • the article 200 is manufactured by arranging at least two such elongated pieces on a first board 207, such as a fiber board, such as a HDF or MDF board.
  • the elongated pieces may be arranged with the first or second fiber material 203, 206 bearing against the first board 207.
  • the elongated pieces are preferably arranged parallel to each other, extending longitudinally along two opposite sides/edges of the first board 207.
  • additional elongated pieces may be arranged in parallel with the two elongated pieces on said first board 207.
  • the elongated pieces may be adhered to the first board 207 by gluing, or other suitable adhering method or means.
  • a distance material 208 is applied onto the first board 207 and in between the at least two elongated pieces.
  • the distance material 208 may for example be a honeycomb material, such as a cellulose honeycomb material.
  • a second board 209 may be applied and adhered to the elongated pieces, and the distance material 208.
  • Fig.2 may be combined with applying strips of a fiber material onto the first and second sheet of fiber materials 203, 206 or first and second boards 207, 209, according to the description in accordance with the example of Fig. 1 .
  • Fig. 2 thus provides the advantage that the surfaces of said first and second boards, being located on a part of the first and second board having a strip or a sheet of fiber material beneath, will be reinforced for receiving mounting means, such as screw members, armature, fittings, frames, etc., there at.
  • Fig. 3 illustrates a perspective view of an article 300 according to another embodiment of the present invention.
  • the article 300 is manufactured by arranging a distance material 301 onto a first sheet of fiber material 302.
  • the first fiber material 302 may be a flexible fiber material according to above, or a fiber board, such as a HDF or MDF board.
  • the distance material 301 may for example be a honeycomb material, such as a cellulose honeycomb material, as disclosed above.
  • a second sheet of fiber material 303 may be applied and adhered to the distance material 301.
  • the second fiber material 303 may be a flexible fiber material according to above, or a fiber board, such as a HDF or MDF board.
  • the obtained product is then sawn across the length thereof, i.e. sawn transversally of the longitudinal direction of the first and second sheets of fiber material 302, 303.
  • a number of elongated pieces with rectangular cross-section, having distance material 301 in between the sheets of fiber material 302, 303, are then obtained.
  • the article 300 is manufactured by arranging at least two such elongated pieces on a first board 304, such as a fiber board, such as a HDF or MDF board.
  • the elongated pieces may be arranged with the first or second fiber material 302, 303 bearing against the first board 304.
  • the elongated pieces are preferably arranged parallel to each other, extending longitudinally along two opposite sides/edges of the first board 304.
  • additional elongated pieces may be arranged in parallel with the two elongated pieces on said first board 304.
  • the elongated pieces may be adhered to the first board 304 by gluing, or other suitable adhering method or means.
  • a distance material 305 is applied onto the first board 304 and in between the at least two elongated pieces.
  • the distance material 305 may for example be a honeycomb material, such as a cellulose honeycomb material.
  • a second board 306 may be applied and adhered to the elongated pieces, and the distance material 305.
  • the embodiment according to Fig.3 may be combined with applying strips of a fiber material onto the first and second sheets of fiber material 302, 303 or first and second boards 304, 306, according to the description in accordance with the example of Fig. 1 .
  • the elongated piece according to the embodiment of Fig. 2 may be combined with elongated piece of Fig. 3 .
  • an elongated piece according to the embodiment of Fig. 2 may be arranged to extend longitudinally along one side/edge of the first board 304, while an elongated piece according to the embodiment of Fig. 3 is arranged parallel to the elongated piece according to the embodiment of Fig. 2 to extend longitudinally along the opposite side/edge of the first board 304.
  • Fig. 3 thus provides the advantage that the surfaces of said first and second boards, being located on a part of the first and second board having a strip or a sheet of fiber material beneath, will be reinforced for receiving mounting means, such as screw members, armature, fittings, frames, etc., there at.
  • the type and form of distance material may be varied to compensate for differences in height in the article, due to sheets of fiber material and fiber boards only being present in some part or parts of the article.
  • distance materials applied in separate steps may have different heights.
  • the boards may consist of laminate, particle board, veneer, plywood, cardboard, plastic, metal etc
  • the laths may consist of solid wood, particle board or any other suitable material to which fittings or holders may be attached.
  • a honeycomb of cardboard is used as spacing element because of the low price and excellent properties of cardboard, but the honeycomb structures may also be made of e.g. plastic.
  • a suitable foam plastic material e.g. polyurethane, may be disposed in the space between the laths or elongated pieces.
  • the boards, sheets of fiber material, or laths, described herein, do not necessarily have to be made of the same material in one embodiment.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Laminated Bodies (AREA)
  • Dry Formation Of Fiberboard And The Like (AREA)

Claims (2)

  1. Ein Verfahren zum Herstellen eines Artikels zum Herstellen von Möbeln, wobei das Verfahren die folgenden Schritte umfasst:
    (i) Anordnen zweier Leisten (201, 202) parallel zueinander auf einer ersten Matte aus Fasermaterial (203), so dass die Leisten (201, 202) in Längsrichtung entlang zweier sich gegenüberliegender Seiten/Kanten der ersten Matte aus Fasermaterial (203) verlaufen;
    (ii) Anordnen eines Distanzmaterials (205) zwischen den zwei Leisten (201, 202);
    (iii) Anordnen einer zweiten Matte aus Fasermaterial (206) auf den Leisten (201, 202) und dem Distanzmaterial (205);
    (iv) Sägen durch die Leisten (201, 202) quer zu der Längsrichtung der Leisten (201, 202), um längliche Stücke mit rechtwinkligem Querschnitt zu erhalten;
    (v) Anordnen zweier solcher länglicher Stücke auf einem ersten Brett (207), wobei das erste oder zweite Fasermaterial (203, 206) in Form von Streifen gegen das erste Brett (207) anliegt, parallel zueinander, in Längsrichtung entlang zweier sich gegenüberliegender Seiten/Kanten des ersten Bretts (207) verlaufend;
    (vi) Anordnen eines Distanzmaterials (208) zwischen den zumindest zwei länglichen Stücken; und
    (vii) Anordnen eines zweiten Bretts (209) auf den länglichen Stücken und dem Distanzmaterial (208).
  2. Verfahren zum Herstellen eines Artikels zur Herstellung von Möbeln, wobei das Verfahren die folgenden Schritte umfasst:
    (i) Anordnen eines Distanzmaterials (301) auf einer ersten Matte aus Fasermaterial (302);
    (ii) Anordnen einer zweiten Matte aus Fasermaterial (303) auf dem Distanzmaterial (301);
    (iii) Sägen quer zu der Längsrichtung der ersten und zweiten Matte aus Fasermaterial (302, 303) und des Distanzmaterials (301), um zwei längliche Stücke mit rechtwinkligem Querschnitt zu erhalten;
    (iv) Anordnen zweier solcher länglicher Stücke auf einem ersten Brett (304), wobei das erste oder zweite Fasermaterial (302, 303) in Form von Streifen gegen das erste Brett (304) anliegt, parallel zueinander, in Längsrichtung entlang zweier sich gegenüberliegender Seiten/Kanten des ersten Bretts (304) verlaufend;
    (v) Anordnen eines Distanzmaterials (305) zwischen den zumindest zwei länglichen Stücken; und
    (vi) Anordnen eines zweiten Bretts (306) auf den länglichen Stücken und dem Distanzmaterial (305).
EP09771563.5A 2008-12-19 2009-12-16 Verfahren zur herstellung von baueinheiten für möbel Active EP2367989B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE0802621 2008-12-19
PCT/EP2009/067282 WO2010069994A2 (en) 2008-12-19 2009-12-16 Building units for furniture, and method for manufacturing of such building units

Publications (2)

Publication Number Publication Date
EP2367989A2 EP2367989A2 (de) 2011-09-28
EP2367989B1 true EP2367989B1 (de) 2018-04-25

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EP09771563.5A Active EP2367989B1 (de) 2008-12-19 2009-12-16 Verfahren zur herstellung von baueinheiten für möbel

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EP (1) EP2367989B1 (de)
CN (1) CN102257223B (de)
WO (1) WO2010069994A2 (de)

Families Citing this family (12)

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Publication number Priority date Publication date Assignee Title
US20120040131A1 (en) 2010-08-10 2012-02-16 Speer Dwaine D Composite Panel Having Perforated Foam Core
PL2627503T3 (pl) 2010-10-13 2014-11-28 Ikea Supply Ag Sposób ciągłego wytwarzania kompozytowego materiału w postaci pustej płyty, urządzenie oraz program komputerowy
US11059259B2 (en) 2016-11-21 2021-07-13 Wabash National, L.P. Composite core with reinforced plastic strips and method thereof
EP3574159A4 (de) 2017-01-30 2020-08-19 Wabash National, L.P. Verbundkern mit verstärkten bereichen und verfahren
CA3053554A1 (en) 2017-02-14 2018-08-23 Wabash National, L.P. Hybrid composite panel and method
US11008051B2 (en) 2018-02-06 2021-05-18 Wabash National, L.P. Interlocking composite core and method
SE545143C2 (en) * 2018-05-15 2023-04-11 Ikea Supply Ag Method for manufacturing a furniture part comprising the steps of providing a hollow structure, cutting the hollow structure to form an outer frame and attaching a first and second cover panel to the outer frame
CN113167069A (zh) * 2018-11-09 2021-07-23 宜家供应有限公司 房间分隔件面板
SE1851615A1 (en) * 2018-11-09 2020-05-10 Ikea Supply Ag Room divider system
SE543314C2 (en) * 2018-12-18 2020-11-24 Ikea Supply Ag A method for producing a furniture board product
US11772715B2 (en) 2019-03-27 2023-10-03 Wabash National, L.P. Composite panel with connecting strip and method
SE544133C2 (en) * 2019-12-17 2022-01-11 Ikea Supply Ag Metal reinforced hollow board, a furniture comprising said hollow board and a method for manufacturing said hollow board

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WO1996021779A1 (en) * 1995-01-11 1996-07-18 Sesamo S.A.S. Di Sinibaldi & C. Strenghtened plasterboard panel preferably of the type used to make walls, partitions, false ceilings and coatings in general
WO2002031287A1 (en) * 2000-10-10 2002-04-18 James Hardie Research Pty Limited Composite building material
DE102004007225B3 (de) * 2004-02-13 2005-07-21 Heinrich Kuper Gmbh & Co Kg Verfahren und Vorrichtung zum Fügen eines Sandwichplattenleistenrahmens
WO2008008890A2 (en) * 2006-07-13 2008-01-17 Marschke Carl R Hollow core floor and deck element

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2239573A2 (en) * 1973-08-03 1975-02-28 Petiau Raymond Fire resistant asbestos felt honeycombed panels - alkaline silicate based glue is used to bond components
WO1996021779A1 (en) * 1995-01-11 1996-07-18 Sesamo S.A.S. Di Sinibaldi & C. Strenghtened plasterboard panel preferably of the type used to make walls, partitions, false ceilings and coatings in general
WO2002031287A1 (en) * 2000-10-10 2002-04-18 James Hardie Research Pty Limited Composite building material
DE102004007225B3 (de) * 2004-02-13 2005-07-21 Heinrich Kuper Gmbh & Co Kg Verfahren und Vorrichtung zum Fügen eines Sandwichplattenleistenrahmens
WO2008008890A2 (en) * 2006-07-13 2008-01-17 Marschke Carl R Hollow core floor and deck element

Also Published As

Publication number Publication date
WO2010069994A3 (en) 2011-06-30
EP2367989A2 (de) 2011-09-28
CN102257223B (zh) 2013-10-30
CN102257223A (zh) 2011-11-23
WO2010069994A2 (en) 2010-06-24

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