EP1607178A2 - Verfahren zur Herstellung von Holzelementen - Google Patents

Verfahren zur Herstellung von Holzelementen Download PDF

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Publication number
EP1607178A2
EP1607178A2 EP05076361A EP05076361A EP1607178A2 EP 1607178 A2 EP1607178 A2 EP 1607178A2 EP 05076361 A EP05076361 A EP 05076361A EP 05076361 A EP05076361 A EP 05076361A EP 1607178 A2 EP1607178 A2 EP 1607178A2
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EP
European Patent Office
Prior art keywords
planed
boards
wooden parts
drying process
sides
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Withdrawn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
EP05076361A
Other languages
English (en)
French (fr)
Other versions
EP1607178A3 (de
Inventor
Albert Eltjo Doewe Van Capelleveen
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.)
Houtindustrie Schijndel BV
Original Assignee
Houtindustrie Schijndel BV
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 Houtindustrie Schijndel BV filed Critical Houtindustrie Schijndel BV
Publication of EP1607178A2 publication Critical patent/EP1607178A2/de
Publication of EP1607178A3 publication Critical patent/EP1607178A3/de
Withdrawn legal-status Critical Current

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    • 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
    • B27M1/00—Working of wood not provided for in subclasses B27B - B27L, e.g. by stretching
    • B27M1/003—Mechanical surface treatment
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B1/00—Processes of grinding or polishing; Use of auxiliary equipment in connection with such processes
    • B24B1/007—Processes of grinding or polishing; Use of auxiliary equipment in connection with such processes abrasive treatment to obtain an aged or worn-out appearance
    • 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

Definitions

  • the invention relates to a method for manufacturing wooden parts, such as floorboards, casing parts and furniture parts, having a worn look.
  • the invention furthermore relates to a device for carrying out such a method.
  • the invention provides a method for manufacturing wooden parts having a worn look, wherein wooden parts of so-called fresh wood, having a rectangular cross-section, are planed at at least one of the sides and subsequently are subjected to a drying process.
  • the wooden part is fully planed at the sight side(s) in a pre-planing treatment and a post-planing treatment prior to the drying process, due to which the sight side is smooth to such an extent that a (more or less regular) profile also known as machine waves is prevented.
  • the method is particularly effective and simple when the post-planing treatment is carried out at a cutting speed that is considerably (dozens of %) higher than the cutting speed of the pre-planing treatment.
  • the wooden part is divided into two boards prior to the drying process, which two boards are thinner as regards thickness and have a sight side, which is planed prior to the drying process.
  • Such boards can be sold as pairs, wherein they have mirrored patterns that go together.
  • the person laying the floor can glue them in the project onto a permanent floor.
  • the two boards preferably are attached to each other, for instance by gluing, at their longitudinal edges originating from the same side and then they are planed at their sight side prior to the drying process. After the drying process the side opposite the sight side can be planed flat, and the two boards can be attached to a carrier plate with glue. In that way they can be sold as a unity and easily be placed in the project, as a part having a double width in comparison with the raw wooden part.
  • the assembly of the boards and the carrier plate can also be profiled at the longitudinal edges, preferably with tongue and groove.
  • all sides of the wooden part are pre-planed prior to the drying process.
  • a wooden part is obtained having the said relief at the sight side, yet which is dimensionally stable as regards thickness, due to which unacceptable differences in thickness and/or differences in width in the floor are counteracted.
  • An exemplary embodiment thereof is the treatment of floorboards.
  • the wooden part for instance a floorboard, becomes dimensionally stable as regards width, which enhances, and which is expected in, the laying of a floor or the assembling of a piece of furniture.
  • said sight sides can all be treated in the said manner.
  • An example of this is a board or lath or plate for a piece of furniture, such as an open cabinet.
  • the other than the sight sides are pre-planed but not post-planed.
  • the wooden parts are placed in pairs with the planed sight sides upon/against each other and in that condition are dried in a preferably climate-controlled drying chamber, for instance in stacked condition having spacers in between the pairs of wooden parts.
  • the drying process preferably is carried out in a drying chamber containing air, wherein during drying air is discharged and/or supplied.
  • the stack of (oak) wooden parts may be subjected to the drying process as a free stack, that means without pressing, or without particular pressure.
  • its longitudinal edges may thus after the drying process be provided with for instance grooves (for mutual connection with a feather) or with a tongue and groove and/or with a bevelled edge.
  • grooves for mutual connection with a feather
  • tongue and groove for mutual connection with a feather
  • bevelled edge A particular effect is achieved when after the drying process the sight corners of the longitudinal edges are locally chopped for forming damages in them.
  • the invention provides a method for manufacturing wooden parts having a worn look, wherein raw wooden parts, such as a thick board or beam, having a rectangular cross-section, of so-called fresh wood, are sawn through the middle in longitudinal direction according to a division plane, parallel to the largest plane, after which the sides of the division plane of the boards are pre-planed and post-planed or planed smooth and the boards with their longitudinal edges originating from the same side are attached to each other, such as by gluing, such that the sides of the division plane of the boards are in the same plane, after which the obtained board assemblies are dried, preferably in stacks wherein the wooden parts are placed in pairs with their sight sides placed against each other.
  • raw wooden parts such as a thick board or beam, having a rectangular cross-section, of so-called fresh wood
  • the relatively thick board or beam is pre-planed at four sides at the sides that are transverse to the division plane.
  • the side opposite the sides of the division plane can be planed flat after the drying process and that side can be attached to a carrier, for instance by gluing.
  • the wooden parts treated in accordance with the method according to the invention described above may at least with their planed main side subsequently be subjected to a mechanical treatment for artificially ageing it, particularly according to the description stated below.
  • the invention provides a method for artificially ageing wooden parts, particularly boards, comprising placing the wooden parts of dried wood in a container filled with a bed of elements provided with smooth convexly curved surfaces, after which the container is brought into repetitive motion and the wooden parts are brought into intensive contact with the bed.
  • the elements provided with smooth convexly curved surfaces exert pressure forces on the surfaces of the wooden parts, particularly boards, as a result of which a particular visible effect is achieved, particularly in the treated largest planes.
  • the container may be designed like a drum, with which the bed of elements and the wooden parts are rotated/revolved.
  • the container may also be positioned on shaking means or vibrating means.
  • the frequency of the repetitive motion preferably can be varied.
  • the effect of the elements is enhanced when use is made of elements that have been provided with surfaces that are convexly curved in two directions perpendicular to each other.
  • use is made of spherical elements.
  • a dry lubricant is added to the elements for the bed, particularly for a polishing treatment.
  • kidney-shaped elements In an alternative embodiment use is made of kidney-shaped elements.
  • a particular effect is achieved if a dry abrasive is added to the elements for the bed, particularly for a grinding treatment.
  • the smallest diameter of the elements is smaller than 5 cm, preferably smaller than 3 cm.
  • the elements preferably are such that they cannot end up in a tongue of a board.
  • a lively effect is achieved when use is made of elements having different diameters.
  • the elements preferably are made of a material having a hardness exceeding the hardness of the wood of the wooden parts.
  • Various substances may be added to the bed of elements for achieving further combined effects. For instance a bleeding look in the surface of the wooden part may be achieved when charcoal is added to the bed, preferably charcoal soaked in a caustic soda solution.
  • a lime-water solution an ammonia solution or a colourant or stain is added to the bed.
  • the invention further provides a device for treating wooden parts, such as boards for providing them with a used look, comprising a container and means for moving, wherein the container has an accommodation space for a bed of elements or objects for surrounding the wooden parts, wherein the container is provided with an access opening for the elements and the wooden parts, which access opening can be closed off, wherein the elements correspond to the elements according to the invention.
  • the device preferably is provided with means for rotating the container about a longitudinal axis, with means for shaking/vibrating the container and/or with means for varying the frequency of the repetitive motion.
  • the invention provides a method for manufacturing wooden parts having a worn look, wherein wooden parts of so-called fresh wood are planed at at least one of the sides and are subsequently subjected to a drying process, after which at least the said planed side is subjected to a mechanical treatment for artificially ageing it.
  • the device 1 shown in figure 1 in this example comprises a container in the form of an in cross-section octagonal drum 4, which by means of posts 3 is attached to a floor slab 2.
  • the drum 4 is driven by a motor 8 for rotation about centre line S.
  • the drum is provided with end walls 5, permanent side walls 6, and side wall 7 that can be folded upwards in the direction A (figure 2).
  • the drum 4 can be rotated in the direction C by means of motor 8, wherein the boards 20 are incorporated in the bed 10 of the elements 11, and closely contact them.
  • the elements may have different shapes, provided with convex curves. Examples are shown in figures 4A-C, wherein figure 4A shows a large and a small sphere 11a, 11b.
  • Figure 4B shows elements having a large and a small kidney shape 12a, 12b.
  • Figure 4C shows large and small lentil-shaped elements 13a, 13b.
  • the material of the elements 11 is harder than the material of the treated wood of the boards.
  • the material may be metal, but for instance may also be nylon.
  • the elements exert a pressure force on the surface of the boards 20, and during rotation (relatively) slide or roll along the surfaces of the boards 20. Due to the shape of the elements a surface contact will substantially take place between a convex surface of the elements and the flat main surface of the boards.
  • the elements can also form shallow transverse channels or grooves in the boards.
  • a dry lubricant may be added, as a result of which shearing forces between the elements and the boards are counteracted and substantially a single impression action will take place on the surface of the boards (polishing).
  • a dry abrasive may be added (grinding).
  • FIG 5 it is shown that from an oak tree 30 (E) boards 31 are sawn, that are subsequently transported to a treatment station (direction F) for consecutively, at least in so-called fresh condition (more than approximately 25 % by weight of moisture content) as oak boards 32 on the surface 38, that will later on form the sight surface, be passed in the direction G past a scraping blade 40 or past known, traditional machining-active planing means, also see figures 8A and 8B.
  • a treatment station direction F
  • the boards are stored in stack 33, to be dried, naturally or forced, in a surrounding of air.
  • the boards can be stacked in pairs, having the sight sides against each other, with spacers such as laths in between the pairs of boards. The sight sides are then free from impressions by the laths.
  • the drying process may take several days to a few dozens of days.
  • the stack can be dried in a climate-controlled chamber.
  • the sight side of the boards gets a relief, wherein the harder areas such as the winter rings 34 with their surface extend higher (34a) in the sight side 38 than the surface 33a of the summer rings 33.
  • the board 32 is also planed at the longitudinal edges and at the opposite main side.
  • a groove 36 is made at the one longitudinal edge and a tongue 37 is made at the other longitudinal edge.
  • a groove 36 can be made at both longitudinal edges, in order to be able to join the floorboards with each other by means of a feather (not shown).
  • bevelled edges 36a, 37a may be provided at the location of the groove 36 and the tongue 37, respectively, which edges can be chopped with a hand scraper.
  • the boards 32 which are already characteristic per se at their sight side 38, can be placed in the drum 1 shown in figure 1, in accordance with figure 2.
  • charcoal soaked in a caustic soda solution may be added to the elements 11 In the drum 1. This renders the charcoal tougher. Due to the caustic soda solution the wood will bleed, which gives the sight side of the boards a particular look.
  • FIG 8A a planing station 100 is shown, through which the wooden parts are passed prior to the drying process.
  • the planing station 100 comprises a support plate 110, in which successively a transport roller 101 with a lowermost pre-planing roller 102 underneath it are placed for treating the sight side of the board 38, an uppermost pre-planing roller 103, two side pre-planing rollers 104a, b and a post-planing roller 105.
  • the pre-planing rollers 102, 103, 104a,b are usual planing rollers, in this example having four straight blades and a diameter of 10 cm.
  • the speed of rotation can be 6000-9000 revolutions a minute.
  • the post-planing roller 105 has a larger diameter, such as 20 cm, and a larger number of blades that may optionally be helically curved.
  • the speed of rotation is such that the cutting speed of the blades is considerably (for instance 50%) higher than the cutting speed of the blades of the rollers 102, 103. As a result any machine waves resulting from the pre-planing rollers are planed away.
  • Figure 8B shows a partial continuation of the planing station 100, for making book bonds.
  • a thick board or beam 132 for instance 25 mm thick, is sawn through the middle in the largest plane into boards 132a, 132b in saw station 160, supported on work surface 163, using saw ribbon 161, that circulates about driven roller 162a,b.
  • Each board 132a,b at the sight side is subsequently subjected to a double planing treatment with pre-planing roller 102 and post-planing roller 105. The opposite side had already been subjected before to a treatment with the pre-planing roller 103.
  • the boards 132a,b with their longitudinal edges originating from the same sides are then attached to each other, such as by gluing, such that the sides of the division plane of the boards are in the same plane, after which the board assemblies obtained are dried in the said manner.
  • book bonds having a particular look are obtained.
  • the side opposite the sides of the division plane is attached to a carrier plate, by gluing, such as shown in figure 9, in which a multiplex carrier plate 150 having boards 132a,b attached thereto via glue layer 152 are shown.
  • the boards 132a,b are attached to each other with a glue layer 151.
  • the assembly shown is provided with a groove 139 at one longitudinal edge and with a tongue 140 at the other longitudinal edge.

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  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Wood Science & Technology (AREA)
  • Forests & Forestry (AREA)
  • Manufacturing & Machinery (AREA)
  • Chemical And Physical Treatments For Wood And The Like (AREA)
EP05076361A 2004-06-10 2005-06-10 Verfahren zur Herstellung von Holzelementen Withdrawn EP1607178A3 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NL1026373 2004-06-10
NL1026373A NL1026373C2 (nl) 2004-06-10 2004-06-10 Werkwijze voor het behandelen van houtdelen.

Publications (2)

Publication Number Publication Date
EP1607178A2 true EP1607178A2 (de) 2005-12-21
EP1607178A3 EP1607178A3 (de) 2009-03-18

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP05076361A Withdrawn EP1607178A3 (de) 2004-06-10 2005-06-10 Verfahren zur Herstellung von Holzelementen

Country Status (2)

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EP (1) EP1607178A3 (de)
NL (1) NL1026373C2 (de)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2067587A1 (de) * 2007-12-04 2009-06-10 Parquets Marty Parkettstab und Herstellungsverfahren
US8051886B2 (en) 2009-12-14 2011-11-08 Unilin Flooring Nc Llc Distressing process and apparatus for applying such process
CN102248573A (zh) * 2011-07-22 2011-11-23 青岛富贵巢木业有限公司 一种三拼表板双面修边定宽装置
CN106863045A (zh) * 2017-01-17 2017-06-20 优居优住家居装饰（北京）有限公司 无荃防霉防潮uv转印地板加工方法
CN106863046A (zh) * 2017-01-17 2017-06-20 优居优住家居装饰（北京）有限公司 无荃防霉防潮uv实色地板加工方法

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL1035219C2 (nl) * 2008-03-28 2010-08-25 Oosterhuis Beheer B V As Behandel-werkwijze voor houtproducten en aldus behandelde houtproducten.

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2001068332A1 (en) * 2000-03-16 2001-09-20 Ilvolankoski Oy Wood product of massive wood, floor cover and method and equipment for the production of wooden elements
EP1252994A1 (de) * 2001-04-24 2002-10-30 Albert Eitjo Doewe Capelleveen Verfahren zur Herstellung von Holzbrettern
WO2003012354A1 (de) * 2001-07-31 2003-02-13 Schotten & Hansen Gmbh Verfahren zur herstellung eines brettes aus massivholz
EP1516708A1 (de) * 2003-09-11 2005-03-23 van Capelleveen, Albert Eltjo Doewe Mit Lauge behandelte Holzelemente

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5630265A (en) * 1994-11-18 1997-05-20 Stone; Christopher S. Wine barrel reconditioning method and apparatus

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2001068332A1 (en) * 2000-03-16 2001-09-20 Ilvolankoski Oy Wood product of massive wood, floor cover and method and equipment for the production of wooden elements
EP1252994A1 (de) * 2001-04-24 2002-10-30 Albert Eitjo Doewe Capelleveen Verfahren zur Herstellung von Holzbrettern
WO2003012354A1 (de) * 2001-07-31 2003-02-13 Schotten & Hansen Gmbh Verfahren zur herstellung eines brettes aus massivholz
EP1516708A1 (de) * 2003-09-11 2005-03-23 van Capelleveen, Albert Eltjo Doewe Mit Lauge behandelte Holzelemente

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2067587A1 (de) * 2007-12-04 2009-06-10 Parquets Marty Parkettstab und Herstellungsverfahren
US8051886B2 (en) 2009-12-14 2011-11-08 Unilin Flooring Nc Llc Distressing process and apparatus for applying such process
CN102248573A (zh) * 2011-07-22 2011-11-23 青岛富贵巢木业有限公司 一种三拼表板双面修边定宽装置
CN106863045A (zh) * 2017-01-17 2017-06-20 优居优住家居装饰（北京）有限公司 无荃防霉防潮uv转印地板加工方法
CN106863046A (zh) * 2017-01-17 2017-06-20 优居优住家居装饰（北京）有限公司 无荃防霉防潮uv实色地板加工方法

Also Published As

Publication number Publication date
NL1026373C2 (nl) 2005-12-14
EP1607178A3 (de) 2009-03-18

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