EP0194238B1 - Verfahren zur Herstellung von Fussbodenbrettern auf Sperrholzplattenbasis und ein auf diese Weise hergestelltes Brett - Google Patents

Verfahren zur Herstellung von Fussbodenbrettern auf Sperrholzplattenbasis und ein auf diese Weise hergestelltes Brett Download PDF

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Publication number
EP0194238B1
EP0194238B1 EP86830050A EP86830050A EP0194238B1 EP 0194238 B1 EP0194238 B1 EP 0194238B1 EP 86830050 A EP86830050 A EP 86830050A EP 86830050 A EP86830050 A EP 86830050A EP 0194238 B1 EP0194238 B1 EP 0194238B1
Authority
EP
European Patent Office
Prior art keywords
layer
board
valuable
fibres
plywood
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 - Lifetime
Application number
EP86830050A
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English (en)
French (fr)
Other versions
EP0194238A2 (de
EP0194238A3 (en
Inventor
Guglielmo Giordano
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.)
VIAROM Srl
Original Assignee
VIAROM Srl
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 VIAROM Srl filed Critical VIAROM Srl
Priority to AT86830050T priority Critical patent/ATE64169T1/de
Publication of EP0194238A2 publication Critical patent/EP0194238A2/de
Publication of EP0194238A3 publication Critical patent/EP0194238A3/en
Application granted granted Critical
Publication of EP0194238B1 publication Critical patent/EP0194238B1/de
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Classifications

    • 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 refers to a development of Italian prior patent No. 9456 A/84 filed by the same inventor on 11 July 1984.
  • a board for wooden floors is made up of an upper layer with viewable face, mostly of valuable wood, matched with a lower layer having a plywood construction and thus with sheets having the fibres pattern both orthogonal and parallel to that of the valuable layer;
  • the valuable layer _ intended to form the viewable face _ has a longitudinal fibres pattern and the lower plywood layer has transverse grooves being thus orthogonal to the fibres pattern of the upper layer.
  • the support layer consists of a plywood structure whose external sheets have longitudinal fibers, parallel to those of the layer of prestige wood; it is understandable that in this condition both the layer of prestige wood and the top sheet of the support panel will deform in the same transverse direction with the result that the wood strip warps (where, by warping, the curving of the width of the strips is intended).
  • this prejudical phenomenon may cause the strip of prestige wood to become convex, or alternatively, in a very humid environment, concave.
  • the grooves were expected to improve the overall elasticity of this wooden strip with respect to possible excessive longitudinal strain.
  • a panel disclosed in French patent No. 659803 is produced with a supporting composite structure on which a very thin sheet of covering is veneered whose fibres are orthogonal to those of the support panel itself.
  • the lower layer has the fibres patterns of the external sheets on thicknesses perpendicular to those of the upper valuable layer and, therefore, parallel to the grooves.
  • the lower plywood layer has five sheets or thicknesses, the intermediate thickness and the two external ones of said lower plywood layer having fibres being transverse in respect to those of the upper valuable layer.
  • the lower plywood layer has the two outer thicknesses or sheets with a fibres pattern transverse in respect to that of the upper valuable layer, and the intermediate sheet _ single or double _ with a fibres pattern parallel to that of the upper valuable layer.
  • the proposed solution is particularly suitable for boards being relatively wide in respect to their length.
  • transverse grooves may be deeply cut to involve at least most of the thickness of the lower layer.
  • the grooves may have a width of the order of a least 3 mm. and such a depth as never to penetrate the upper layer and not to indent the adhesive veil which unites the valuable wood board to the lower plywood layer.
  • the side cogs and slots for the installation joint are formed in the lower plywood layer.
  • a floor board is made up of an upper layer (21) of valuable wood and a lower layer (23) consisting of two external plywood sheets (23A, 23B) and two intermediate sheets (23C).
  • the fibres pattern of the layer (21) and of the sheets (23C) is longitudinal, that is, lying in the direction fL of the board length; the fibres pattern of sheets (23A, 23B) is orientated in the transverse direction fT.
  • transverse grooves (25) are cut out parallel to the direction fT and suitably spaced apart for the function already pointed out.
  • the depth of the grooves does not go beyond the glueing surface (27) between 21 and 23B, and may also not go beyond the glueing surface (29) between 23B and 23C.
  • the boards have rib projections (30) and channel recesses (32) _ shown only in Fig. 2 _ to form the joints.
  • Both the projections,and the channels are formed from the layer (23).
  • Fig. 2 shows a five-layer plywood, a central layer (23E) being interposed between the thicknesses or sheets (23C); the sheet or thickness (23E) has the fibres pattern parallel to that of thicknesses (23A and 23B).

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Wood Science & Technology (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Floor Finish (AREA)
  • Finished Plywoods (AREA)
  • Chemical And Physical Treatments For Wood And The Like (AREA)
  • Telephonic Communication Services (AREA)
  • Collating Specific Patterns (AREA)
  • Television Systems (AREA)
  • Veneer Processing And Manufacture Of Plywood (AREA)

Claims (6)

1. Eine Leiste für Holzfußböden, bestehend aus einer unverkleideten (sichtbaren) Oberschicht (21), vorwiegend aus Edelholz, verbunden mit einer sperrholzartigen Unterschicht (23), deren Blätter sowohl rechtwinklig als auch parallel zur Edelholzschicht (21) verlaufenden Holzfasern besitzen, wobei die sichtbare Edelholzschicht (21) längs verlaufende Fasern besitzt und die Sperrholz-Unterschicht (23) liegende (25), d.h. rechtwinklig zum Faserverlauf der Oberschicht (21) angeordnete Rillen aufweist, dadurch gekennzeichnet daß, die äußeren Lagen (23A und 23B) der Unterschicht (23) eine Faserung besitzen, die senkrecht zu denen der Edelholz-Oberschicht (21) und folglich parallel zu den Rillen (25) verläuft.
2. Leiste für Fußböden gemäß obigem Patentanspruch, dadurch gekennzeichnet, daß die Sperrholz-Unterschicht (23) fünf Lagen, eine mittlere (23C) und jeweils zwei äußere (23A und 23B) besitzt, deren Faserung quer zu der der Edelholz-Oberschicht (21) verläuft.
3. Leiste für Fußböden gemäß Patentanspruch 1, dadurch gekennzeichnet, daß die beiden äußeren Lagen (23A und 23B) der Sperrholz-Unterschicht (23) einen bezogen auf die Edelholz-Oberschicht (21) querliegenden Faserverlauf und eine einfach oder doppelt ausgeführte mittlere Lage (23C) mit einem bezogen auf die Edelholz-Oberschicht (21) parallelen Faserverlauf besitzt.
4. Leiste für Fußböden gemäß Patentansprüche 1 bis 3, dadurch gekennzeichnet, daß die Rillen (25) tief sind, um die Sperrholz-Unterschicht (23) über einen Großteil ihrer Dicke zu erfassen.
5. Leiste für Fußböden gemäß Patentansprüche 1 bis 4, dadurch gekennzeichnet, daß die Rillen (25) mindestens 3 mm breit, aber nicht so tief sind, daß sie die Oberschicht (21) erfassen und die Leimschicht beeinträchtigen könnten, welche die Leiste mit der Sperrholz-Unterschicht (23) bindet.
6. Leiste gemäß Patentansprüche 1 bis 5, dadurch gekennzeichnet, daß die zum Einrasten bei der Verlegung dienenden Zinken (30) und seitlichen Rillen (32) in der Unterschicht (23) angebracht sind.
EP86830050A 1985-03-05 1986-03-04 Verfahren zur Herstellung von Fussbodenbrettern auf Sperrholzplattenbasis und ein auf diese Weise hergestelltes Brett Expired - Lifetime EP0194238B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT86830050T ATE64169T1 (de) 1985-03-05 1986-03-04 Verfahren zur herstellung von fussbodenbrettern auf sperrholzplattenbasis und ein auf diese weise hergestelltes brett.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT935385 1985-03-05
IT09353/85A IT1201246B (it) 1985-03-05 1985-03-05 Procedimento per la formazione di liste da pavimento su base di compensato,e lista cosi' realizzata

Publications (3)

Publication Number Publication Date
EP0194238A2 EP0194238A2 (de) 1986-09-10
EP0194238A3 EP0194238A3 (en) 1987-09-16
EP0194238B1 true EP0194238B1 (de) 1991-06-05

Family

ID=11128873

Family Applications (1)

Application Number Title Priority Date Filing Date
EP86830050A Expired - Lifetime EP0194238B1 (de) 1985-03-05 1986-03-04 Verfahren zur Herstellung von Fussbodenbrettern auf Sperrholzplattenbasis und ein auf diese Weise hergestelltes Brett

Country Status (4)

Country Link
EP (1) EP0194238B1 (de)
AT (1) ATE64169T1 (de)
DE (1) DE3679574D1 (de)
IT (1) IT1201246B (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4131640A1 (de) * 1991-09-23 1993-04-01 Hamberger Industriewerke Gmbh Laminatfussboden

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT207242Z2 (it) * 1986-03-07 1988-01-04 Giordano Guglielmo Un manufatto per pavimentazione, costituito da elementi di legno con fibra ortogonale alla facciavista ed assemblato con un supporto in compensato
IT242498Y1 (it) * 1996-12-19 2001-06-14 Margaritelli Italia Spa Listone da pavimentazione costituito da una lista in legno pregiato eda un particolare supporto multistrato in cui prevalgono gli strati
AT406596B (de) * 1998-07-13 2000-06-26 Erwin Ing Thoma Vorgefertigtes schichtholzelement
US7225591B2 (en) * 2000-10-08 2007-06-05 Hangzhou Dazhuang Floor Co., Ltd. Flexible two-ply flooring system
US7261947B2 (en) * 2003-12-04 2007-08-28 Awi Licensing Company Plywood laminate having improved dimensional stability and resistance to warping and delamination
WO2012149634A1 (en) * 2011-05-02 2012-11-08 D Abbadie D Arrast Michel-Arnaud Cross-laminated timber panel
CN103978535B (zh) * 2014-05-16 2016-01-20 徐斌 加工具有年轮图案地板的工艺

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR659803A (fr) * 1928-08-31 1929-07-03 Perfectionnements aux panneaux en bois pour murs et planchers
FR706274A (fr) * 1930-02-19 1931-06-20 Nouveaux éléments de parquets en bois contreplaqué et dispositif en facilitant lafabrication
CH154091A (fr) * 1931-04-20 1932-04-30 Maury Alois Elément de parquet.
FR890194A (fr) * 1943-01-18 1944-01-31 élément de construction pour parquets
GB628559A (en) * 1946-07-01 1949-08-31 Gustaf Kahr Improved laminated floor boards and method of manufacturing same
DE841633C (de) * 1949-11-17 1952-06-16 Kulmbacher Spinnerei Verfahren zur Herstellung eines Fussbodenbelages
CH328341A (de) * 1954-07-05 1958-03-15 Kristian Staerk A S Profilierte Sperrholzplatte
FR1480365A (fr) * 1966-03-31 1967-05-12 Duchesne Ets Parquet
AT379845B (de) * 1980-08-27 1986-03-10 Tarkett Ab Platte oder stab, insbesondere fuer fussboeden

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4131640A1 (de) * 1991-09-23 1993-04-01 Hamberger Industriewerke Gmbh Laminatfussboden

Also Published As

Publication number Publication date
DE3679574D1 (de) 1991-07-11
IT1201246B (it) 1989-01-27
IT8509353A0 (it) 1985-03-05
EP0194238A2 (de) 1986-09-10
EP0194238A3 (en) 1987-09-16
ATE64169T1 (de) 1991-06-15

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