EP0074821B1 - Verfahren zur Herstellung einer Holzfliese - Google Patents

Verfahren zur Herstellung einer Holzfliese Download PDF

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Publication number
EP0074821B1
EP0074821B1 EP82304781A EP82304781A EP0074821B1 EP 0074821 B1 EP0074821 B1 EP 0074821B1 EP 82304781 A EP82304781 A EP 82304781A EP 82304781 A EP82304781 A EP 82304781A EP 0074821 B1 EP0074821 B1 EP 0074821B1
Authority
EP
European Patent Office
Prior art keywords
tile
members
wood
adhesive
bolt
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.)
Expired
Application number
EP82304781A
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English (en)
French (fr)
Other versions
EP0074821A2 (de
EP0074821A3 (en
Inventor
Bunlue Yontrarak
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.)
Individual
Original Assignee
Individual
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Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to AT82304781T priority Critical patent/ATE33785T1/de
Publication of EP0074821A2 publication Critical patent/EP0074821A2/de
Publication of EP0074821A3 publication Critical patent/EP0074821A3/en
Application granted granted Critical
Publication of EP0074821B1 publication Critical patent/EP0074821B1/de
Expired 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27L—REMOVING BARK OR VESTIGES OF BRANCHES; SPLITTING WOOD; MANUFACTURE OF VENEER, WOODEN STICKS, WOOD SHAVINGS, WOOD FIBRES OR WOOD POWDER
    • B27L5/00—Manufacture of veneer ; Preparatory processing therefor

Definitions

  • This invention relates to a method of making wooden tiles.
  • Wood tiles have long been made and used as a covering material, particularly for floors.
  • good quality logs were abundant and wastage of wood was considerable.
  • the tiles in those early days were made unnecessarily thick, so thick that the wood in the tiles could have outlasted the floor itself, but unfortunately they delaminated before the end of their service life.
  • the natural wood logs have become more scarce and expensive, so the thickness of flooring in general has been reduced.
  • the normal conventional tile is about 6 to 7 mm thick. As a matter of fact, even this thickness is still too much and certainly more than you need for flooring.
  • a thinner tile has not been available on the market simply because it has been uneconomical to manufacture by conventional methods.
  • the cutting of the wood with a saw results in a closed grain surface on both the top and bottom major surfaces of the cut sheet resulting in the finished tile being of a rigid construction having substantially no flexibility and being brittle. Hettich alleviates this problem to some extent by using a flexible glue and by providing grooves in the underside of the blocks.
  • a method of making a flexible wooden tile comprising the steps of forming a plurality of members of wood of a predetermined thickness from a piece of timber, applying adhesive to edges of the members, forming a plurality of said members into a tile with an edge of one member abutting an edge of another member, and allowing the adhesive to set to bond said members together, characterized in that the members are formed by knife cutting the piece of timber with a rotary lathe or slicing machine to form a sheet-like piece of wood of said predetermined thickness which is then cut into said plurality of members and in that said members are then bonded together to form the flexible wooden tile in which each constituent member is flexible.
  • cutting with a lathe is known in the field of the manufacture of veneer. Examples of this are shown in GB-A-835075, and FR-A-969 320.
  • the cutting knife may lie parallel with the longitudinal axis of a bolt of wood and may be moved horizontally, vertically or in a slanted fashion in the direction transverse to the longitudinal axis of the bolt.
  • the cutting knife may be moved lengthwise through the bolt of wood parallel to the longitudinal axis of the bolt.
  • the members are formed of a predetermined length and breadth and the length is arranged to be longer than the breadth.
  • the members are arranged together to form a square tile.
  • a self-adhesive can be applied to the undersurface of the tile, which self-adhesive is a double sided self-adhesive tape applied to the undersurface of the tile.
  • the tile is sanded to a thickness of 2.5 mm and is trimmed to have sides of 305 mm.
  • the tile may be formed of wood selected from teak, oak and rarewood species, and is boiled, cooled to ambient temperature, boiled again and knife cut whilst hot.
  • the adhesive applied to the individual members to each other is ureaformaldehyde, although any other suitable adhesive may be used.
  • the curing or setting of the bonding adhesive may be achieved by placing individually assembled tiles side by side on a platen of a hot press and subsequently pressure of some 10 metric tons per square foot is applied to the tiles at high temperature for approximately three minutes.
  • the tile is shown to be square and is assembled from a plurality of independent solid wood fingers 1 which are bonded together along abutting edges with a suitable adhesive such as urea formaldehyde.
  • the fingers 1 are formed into blocks of five parallel fingers laid side-by-side and the blocks are laid so that the longitudinal fingers of each block lie at right angles to the next adjacent block. In this way sixteen such blocks can be laid side-by-side and bonded together to form the tile as shown in Figure 1.
  • Figure 2 illustrates an edge view of the tile of Figure 1 and further illustrates the bonded joints 2 between the blocks of fingers 1. Although not shown in Figure 2, the blocks of individual fingers are similarly butted and bonded together.
  • a teak log is boiled or steamed and then allowed to cool to ambient temperature where upon its temperature is quickly raised again for boiling or steaming for a second time.
  • the log is placed in a rotary lathe such as is manufactured by Capital Corporation in the United States of America, and while the log is still hot but cooled sufficiently to allow efficient cutting of the wood the log is rotated and a sheet of wood of a thickness of a little more than 2.5 mm is cut by a knife from the surface of the log.
  • the knife blade is some 4 feet in length and is positioned at an angle which will provide the maximum release of the stresses and strains within the log as the sheet is removed.
  • the sheets peeled from the log are cut by means of a saw into a plurality of elongate rectangular fingers.
  • the fingers are then stacked with their respective edge surfaces in common planes so that adhesive such as urea formaldehyde can be applied to the edge surfaces.
  • the fingers are then laid in a jig in the pattern shown in Figure 1 with surfaces of the jig supporting the outer peripheral surface 3 of the tile in Figure 1.
  • the jig is then removed and the tile placed on a platen of a hot press with other similarly formed tiles.
  • the hot press is operated to apply a pressure of some 10 metric tons per square foot to the tile for some three minutes and when released the adhesive is cured and the fingers of the tile bonded together.
  • the tile When the adhesive has cured, the tile is trimmed around its edges to define a square tile with each of the sides having a length of 305 mm.
  • the main upper and lower surfaces of the tile are finished in a conventional manner by sanding to provide commercially acceptable surfaces which can be polished. After this finishing process, the tile has a thickness of some 2.5 mm and does not have a backing substrate.
  • the advantages gained by the method of manufacturing a tile in accordance with the present invention is that by cutting the wooden sheet from the log with a knife provides an open grain surface. Accordingly, in the finished tile, the upper and lower surfaces have this open grained feature which permits the tile to have a flexibility which is hitherto unknown in wooden floor tiles. Furthermore, the method provides for a thinner solid wooden tile than that previously manufactured, the thinness also resulting in a tile which is both light in weight and economical to produce.
  • the sheet of wood has been described as being cut from a teak log on a rotary lathe, it is to be understood that such sheets may be removed from a bolt of wood by means of horizontal, vertical, slanted or lengthways slicers which are well known in the art, but in which the sheets are essentially removed by cutting with a knife.
  • a typical such slicing machine is produced by the Italian firm of Cremona Angelo.
  • the knife has been described as being some 4 feet in length, it may be of any convenient length which is smaller or longer, and may, for example, be up to some 16 feet in length. In the lengthways slicer the blade may be only 10 inches long.
  • woods may be used in making such tiles but it is not necessary to subject all of them to the boiling or steaming process described. However, it is essential the sheet of wood taken from the log or bolt is cut with a knife to obtain open grain surfaces on the tiles.
  • Wooden tiles made by the process of the present invention may be as thin as 0.5 mm when used as a wall covering. However, for practical purposes the tiles are manufactured with thickness in the range 1.5 mm to 10 mm. Thicker tiles may be produced but become more uneconomical as the thickness increases.
  • the finished tile is coated on its backing or undersurface with a self adhesive covered by a removable non adhesive material.
  • the shape of the tile is not restricted to a square tile but may be of any shape such as an elongate rectangular form or a six sided form for example.
  • the pattern on the tile formed by the positioning of the fingers can be varied as desired and the fingers can be of different lengths to accommodate alternative patterns.

Landscapes

  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Wood Science & Technology (AREA)
  • Forests & Forestry (AREA)
  • Floor Finish (AREA)
  • Chemical And Physical Treatments For Wood And The Like (AREA)
  • Road Paving Structures (AREA)
  • Panels For Use In Building Construction (AREA)
  • Devices For Post-Treatments, Processing, Supply, Discharge, And Other Processes (AREA)

Claims (11)

1. Verfahren zum Herstellen einer flexiblen Platte aus Holz mit folgenden Schritten: aus einem Holzstück wird eine Mehrzahl von Elementen (1) aus Holz einer vorherbestimmten Stärke hergestellt; auf Ränder der Elemente (1) wird Klebstoff aufgetragen, eine Mehrzahl der Elemente (1) wird derart zu einer Platte vereinigt, daß ein Rand eines Elements mit einem Rand eines anderen Elements stumpf gestoßen ist, und zum Verbinden der Elemente (1) wird der Klebstoff abbinden gelassen, dadurch gekennzeichnet, daß zum Herstellen der Elemente das Holzstück auf einer rotierenden Drehbank oder Abstechmaschine mit einem Messer geschnitten wird, so daß ein blattartiges Holzstück der vorherbestimmten Stärke erhalten wird, das dann in die Mehrzahl der Elemente (1) zerschnitten wird, und daß dann zur Bildung der flexiblen Platte aus Holz, in der jedes der sie bildenden Elemente flexibel ist, die Elemente miteinander verbunden werden.
2. Verfahren nach Anspruch.1, dadurch gekennzeichnet, daß die rotierende Drehbank zur Durchführung eines vollständig umlaufenden Drehschnitts betrieben wird.
3. Verfahren nach Anspruch 1, dadurch gekennzeichnet, daß die Abstechmaschine ein Schneidmesser besitzt, das zu der Längsachse des länglichen Holzstückes parallel angeordnet ist und das quer zu der Längsachse des länglichen Holzstückes horizontal, vertikal oder schräg bewegbar ist.
4. Verfahren nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß die genannten Elemente von dem Blatt aus Holz rechteckförmig abgesägt werden und die Länge jedes Elements größer ist als seine Breite.
5. Verfahren nach Anspruch 4, dadurch gekennzeichnet, daß die Elemente zu einer quadratischen Platte vereinigt werden.
6. Verfahren nach Anspruch 1, dadurch gekennzeichnet, daß das Schneidmesser parallel zu der Längsachse des länglichen Holzstückes durch diesen bewegt wird.
7. Verfahren n'ach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß auf die Unterseite der Platte ein selbstklebendes Klebmittel aufgetragen wird.
8. Verfahren nach Anspruch 7, dadurch gekennzeichnet, daß das selbstklebende Mittel ein doppelseitig selbstklebendes Klebeband ist, das auf die Unterseite der Platte aufgetragen wird.
9. Verfahren nach einem der vohergehenden Ansprüche, dadurch gekennzeichnet, daß die Platte mit Sandpapier auf eine Stärke von 2,5 mm geschliffen und daß sie auf eine Seitenlänge von 305 mm zugeschnitten wird.
10. Verfahren nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß die Platte aus Holz aus einem Holz hergestellt wird, das ausgewählt ist aus Teak, Eiche und Edelholzarten, und das gekocht, dann auf Umgebungstemperatur abgekühlt und erneut gekocht und im heißen Zustand mit dem Messer geschnitten wird.
11. Verfahren nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß der auf die Platten aufgetragene Klebstoff Harnstofformaldehyd ist.
EP82304781A 1981-09-15 1982-09-10 Verfahren zur Herstellung einer Holzfliese Expired EP0074821B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT82304781T ATE33785T1 (de) 1981-09-15 1982-09-10 Verfahren zur herstellung einer holzfliese.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB8127823 1981-09-15
GB8127823 1981-09-15

Publications (3)

Publication Number Publication Date
EP0074821A2 EP0074821A2 (de) 1983-03-23
EP0074821A3 EP0074821A3 (en) 1984-01-18
EP0074821B1 true EP0074821B1 (de) 1988-04-27

Family

ID=10524516

Family Applications (1)

Application Number Title Priority Date Filing Date
EP82304781A Expired EP0074821B1 (de) 1981-09-15 1982-09-10 Verfahren zur Herstellung einer Holzfliese

Country Status (9)

Country Link
EP (1) EP0074821B1 (de)
AT (1) ATE33785T1 (de)
AU (1) AU557673B2 (de)
CA (1) CA1193823A (de)
DE (1) DE3278391D1 (de)
GB (1) GB2107642B (de)
HK (1) HK5287A (de)
MY (1) MY8700188A (de)
SG (1) SG86686G (de)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA2112071A1 (en) * 1993-12-21 1995-06-22 Chung Hsien Chiou Method of manufacturing floor boards
FR2757197B1 (fr) * 1996-12-16 1999-04-30 Sarl Soveco Reunion Procede de couverture en bardeaux a dimensions optimisees

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR555023A (fr) * 1922-08-10 1923-06-21 G Leroy Ets Dispositif de dérouleuses permettant l'obtention de planchettes de forme déterminée
FR969320A (fr) * 1948-07-12 1950-12-19 Nat Molinor S A Perfectionnements apportés aux machines à dérouler et à trancher les bois de placage
GB835075A (de) * 1957-11-29 1960-05-18
US3377223A (en) * 1963-12-19 1968-04-09 Simpson Timber Co Composite wood veneer and means for producing same
US3448530A (en) * 1967-03-21 1969-06-10 Aage W Mortensen Method and apparatus for conditioning logs to be cut into veneer
NO139933C (no) * 1972-05-18 1979-06-06 Karl Hettich Ferdigparkett-element.
JPS52139707A (en) * 1975-06-14 1977-11-21 Hashimoto Denki Co Ltd Method of stringing raw veneers together
US4234024A (en) * 1978-04-20 1980-11-18 Meinan Machinery Works, Inc. Veneer lathe

Also Published As

Publication number Publication date
AU8841082A (en) 1983-03-24
MY8700188A (en) 1987-12-31
ATE33785T1 (de) 1988-05-15
HK5287A (en) 1987-01-23
SG86686G (en) 1987-07-03
GB2107642B (en) 1985-12-18
EP0074821A2 (de) 1983-03-23
AU557673B2 (en) 1987-01-08
DE3278391D1 (en) 1988-06-01
CA1193823A (en) 1985-09-24
EP0074821A3 (en) 1984-01-18
GB2107642A (en) 1983-05-05

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