US3535839A - Pretreated sealed parquet plate - Google Patents

Pretreated sealed parquet plate Download PDF

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Publication number
US3535839A
US3535839A US733129A US3535839DA US3535839A US 3535839 A US3535839 A US 3535839A US 733129 A US733129 A US 733129A US 3535839D A US3535839D A US 3535839DA US 3535839 A US3535839 A US 3535839A
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US
United States
Prior art keywords
strips
parquet
plate
underside
sealed
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
US733129A
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English (en)
Inventor
Joachim Strubing
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Bauwerk AG
Original Assignee
Bauwerk Bodenbelagsind Ag
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Application filed by Bauwerk Bodenbelagsind Ag filed Critical Bauwerk Bodenbelagsind Ag
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Publication of US3535839A publication Critical patent/US3535839A/en
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Expired - Lifetime 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
    • 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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/16—Two dimensionally sectional layer
    • Y10T428/163—Next to unitary web or sheet of equal or greater extent
    • Y10T428/164—Continuous two dimensionally sectional layer
    • Y10T428/167—Cellulosic sections [e.g., parquet floor, etc.]

Definitions

  • a parquet flooring plate or unit is composed of elementary elongate Wooden strips arranged in square-shaped groups, and a plurality of such groups are joined to form a rectangular parquet unit in which the individual strips and the different square-shaped groups are held together prior to laying the floor by elastically extensible tapes glued to the underside of the assembled unit.
  • the units have their top face ground and sealed in the factory prior to laying the oor.
  • the continuous sealing agent layer on the top face of the unit is broken across all joints between adjacent elementary strips in the unit by bending the strips relatively to each other to subject the sealing agent layer above said joints to tensile stress, while said extensible tapes on the underside are yielding and remain intact.
  • the invention relates to sealed parquet plates, ready to be laid on a floor and composed of individual small wooden blocks or strips joined together to form a parquet panel.
  • lParquet plates which are composed of such strips, particularly so-called mosaic parquet panels in which the strips are joined checkerboardlike with crossed direction of grain are provided on the underside with a bond consisting of narrow paper or fabric strips in order to maintain the individual wooden Iblocks or strips in assembled condition.
  • These bonding strips are applied flat to the underside of the panels or are sunk for about one half millimetre into the bottom face of the panel, whereby the thickness olf the wooden blocks or strips is substantially conserved as useful thickness.
  • the plates or panels are laid on a subiioor by the aid of normal aqueous dispersion adhesives, usually PVA adhesive.
  • PVA adhesive normal varnish is used for sealing the parquet flooring.
  • Another possibility of avoiding the deformation of parquet panels sealed prior to laying is the covering of the underside of the panels, i.e., to protect the panels against the water in the adhesive.
  • bituminated paper can be glued to the underside of the panels.
  • Such an intermediate layer can impair the bonding of the parquet panels with the subfloor and render the lloor inapt for use.
  • Continuous carrier layers or protecting layers having improved stability properties have also been used, but such additional layers are expensive and result in other drawbacks.
  • the individual elementary parquet blocks or strips could be sealed rst and then assembled to form panels. This procedure, however, is not suitable, since practically it is not possible to align the parquet blocks or strips without formation of disturbing lippings between adjacent strips, apart from a higher consumption of sealing agent.
  • bonding means of extensible and iiexible material are applied to the underside of the joined elementary parquet blocks or strips to hold them together prior to laying of the plates, the extensibility of said bonding means being at least twice as high as the extensibility of the sealing agent layer on the top side of the joined elementary blocks or strips, and the sealing agent layer being broken across all joints between adjacent elementary blocks or strips of the plate.
  • the bonding means for the blocks or strips applied to the underside of the parquet plate conveniently consist of extensible tapes which extend across the joints -between the blocks or strips and along the marginal portions of said square elements.
  • the bonding means on the undersides of the plates can be formed also by adhesive coated threads or strings placed into grooves provided on the underside at the front ends of the blocks or strips and along the joints of adjacent square elements.
  • the bonding means at the underside of the plates are glued by application of heat.
  • the invention also relates to a method for producing such sealed parquet plates ready for laying.
  • This method comprises joining a number of elongated parquet blocks or strips, applying bonding means of extensible and flexible material to one side of said blocks or strips across the joints thereof for holding the blocks or strips in assembled relation, grinding and sealing the other side of the assembled blocks and strips, so as to form on said other side a layer of sealing agent continuously extending over the entire surface area of the assembled blocks or strips, and then breaking said sealing agent layer at the joints between said elementary blocks or strips by bending the blocks or strips relative to each other.
  • FIG. l is a plan view on the underside of a parquet plate according to the invention.
  • FIG. la is an end view of the parquet plate of FIG. 1, viewed in the direction of arrows 1a in FIG. l;
  • FIGS. 2 to 10 serve to explain the method of production of a parquet plate ready for laying
  • FIGS. l1 and 12 are top plan views of parquet plates according to the invention having a modified arrangement of the elementary blocks or strips.
  • FIG. 1 is a view of the underside of a parquet plate 1 assembled from a plurality of similar elementary wooden strips 2.
  • tapes 3 of an extensible and flexible material such as paper or plastic, coated or reinforced paper, are glued to the strips 2 at the underside of the plate, preferably by means of an elastic or extensible adhesive or by means of an adhesive which has been treated, for example heated to be temporarily elastic.
  • Such a tape 3 extends along each of the four marginal portions of the plate transversely across the strips 2 of one group and along the outer strip 2 of the adjacent group of strips, and two further strips 2 extend along the two median lines of the plate to connect the ends of the strips 2 of one group with the longitudinal edge of the first strip of the adjacent group.
  • the surface of the parquet plate may be grooved, as shown in FIG. la, to receive the tapes 3 at the locations described just above. This narrow connecting tape 3 suffices to hold the strips 2 together prior to laying the plates on a floor.
  • the comparatively large Wood surface of a plate permits an effective bonding of the plate with the subfloor, so that the strength of interconnection of the individual strips by means of the tapes 3 is of secondary importance and uneveness between adjacent plates or formation of so-called lippings is not to be feared.
  • a plate composed in this manner of strips 2 in the factory is then ground and sealed also in the factory by the use of normal or conventional sealing varnish.
  • the parquet plate represented in FIG. 1 also can be produced in another manner.
  • a. plurality of parallel strips 2a can be joined to form a long band 4 and the individualwooden strips 2a are maintained together by tapes 3a which are glued to the underside of the assembled strips 3a.
  • These tapes consist of the same material as the tapes 3 in FIG. l, i.e., of paper, plastic, or reinforced paper.
  • Such a band 4 is then cut into portions of desired length which are ground and sealed in conventional manner by the use of normal sea1- ing varnish.
  • the sealing of the parquet bands formed by a certain number of strips 2a results in the undesired effect that the sealing agent penetrates into the joints between the adjacent individual strips 2a and causes them to stick together.
  • This bonding together of the strips at the joints subsequently must be broken up, prior to assembling the sealed lengths of parquet bands to a parquet plate and before the plate can be laid to form a parquet flooring.
  • This can be effected in simple manner by passing the band about a convex surface or guide roller 5 as shown in FIG. 3.
  • the sealing agent layer 6 of the -band 4 shall be situated in the tension zone, thus on the outer or convex side of the band.
  • the sealing agent layer is brittle, but the connection on the underside of the plates is elastically extensible as already mentioned, such deformations are effective in the desired manner, i.e., the sealing agent layer breaks up, while the connection of the underside remains intact.
  • breaking up is effected in two successive steps, the underside moreover is less stressed than the upper side provided with the sealing agent layer 6, since the angles o between adjacent inclined strips 2 on the underside measure only one-half of the angles p at the upper side of two inclined strips 2.
  • the tape connections at the underside of the plate are sufficiently extensible, it is possible to effect breaking-up in two steps as shown in FIG. 5.
  • FIGS. 6, 7 and 8 diagrammatically represent a device for breaking up of a parquet plate according to the method corresponding to the representation of FIG. 5, thus in two steps. Obviously, the device would differ in details but not in principle, when breaking up would be effected in three steps according to FIG. 4.
  • FIG. 6 illustrates a portion of a parquet plate.
  • the five parquet strips 2 visible with their ends and forming a square group of strips, in FIG. 1, are designated by a, b, c, d and e.
  • 3 designates the tape connection in the underside of the strips
  • 6 is the sealing agent layer
  • 7 represents a base plate
  • 8 are fixed ledges of a thickness of about 0.5 millimetres and slightly shorter than the parquet strips, i.e., they do not project beyond the edges of the square formed by the parquet strips.
  • a rubber block 9 is disposed above the square group of strips a, b, c, d and e and can be pressed from above against the strips by means of a power press.
  • the ledges 8 are situated beneath the joints between the strips a and b, c and d and beneath the outer edge of the strip e when the parquet plate is placed into operating position in the device.
  • the resilient rubber block 9 is lowered and pressed against the strips. Thereby the square of strips is deformed according to FIG. 7, i.e., it collapses in the spaces between the ledges 8 which act as support underneath alternate joints. In the joints supported by the ledges tensile stress is produced and the sealing agent layer is broken.
  • the rubber plate 9 is lifted off and the parquet plate removed and brought into the device according to FIG. 8 and there again the parquet plate is compressed by a rubber block 9.
  • the ledges 8 in this device are displaced for the width of one strip with respect to the arrangement of FIG. 7.
  • the described base plate 7 with ledges 8 suices to breakup one square group of strips 2 of a plate 1 according to FIG. 1.
  • the parquet plates to be treated consist of several square groups of strips 2, for example of four or sixteen squares.
  • the complete apparatus for breaking up such a plate is designed correspondingly, and comprises also four or sixteen base plates 7 having ledges 8 and one or more rubber blocks 9.
  • a characteristic feature of the method is the limited bending of the strips as diagrammatically represented in FIGS. 4 and 5.
  • the device according to FIGS. 6, 7 and 8 is only one of many possible forms of apparatus for effecting the breaking of the sealing agent layer.
  • a rubber block 9 for example a rigid pressing plate could be used which would be provided with ledges such as the ledges 8 of the lower base plate, but which would be displaced for the width of one strip 2 with respect to the ledges 8, in order to obtain an alternate bending of the strips.
  • FIG. l illustrates the manner of operation of this breaking-up device.
  • the counter pressure plate can consist of rubber or can also be formed by a rigid plate with controllable ledges-which can be sunk into the plate.
  • connection of the assembled strips and groups of strips could also be made in such manner that a groove is cut into the wood at the underside of the plate along the ends of the strips at the edges of the plate and along the joints between the adjacent square portions, and an extensible string coated with adhesive is placed into the grooves.
  • an extensible string coated with adhesive is placed into the grooves.
  • a bonding means covering the entire area of the underside of the plate is used, for example a thin sheet of flexible, extensible material extending over the entire surface of the underside of the plate.
  • a sealed parquet plate ready for laying, composed of individual, elementary elongated parquet strips arranged in edge-to-edge, generally paralled relation, a continuous sealing agent layer applied on the top wear side of the strips, said layer penetrating said plate and together adjacent elongated strips whereby rigid bonding of said individual strips results due to the formation of the layer which bridges the joints between adjacent strips, and bonding means of extensible and flexible material applied to the underside of the elementary parquet strips, said agent layer and said bonding means holding said strips together in generally planar relation prior to the laying of the plates, the extensibility of said bonding means being at least twice as great as the extensibility of said sealing agent layer on the top side of said elementary strips, whereby breaking of said layer at the joints and the reestablishment of the independence of each of said elementary strips at the-wear surface while maintaining the integrity of the bonding means is facilitated to permit the use of hydrous adhesives in securing said parque plate to a iloor, subfloor and the like.

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  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Wood Science & Technology (AREA)
  • Forests & Forestry (AREA)
  • Floor Finish (AREA)
  • Veneer Processing And Manufacture Of Plywood (AREA)
US733129A 1967-06-01 1968-05-29 Pretreated sealed parquet plate Expired - Lifetime US3535839A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH778767A CH454430A (de) 1967-06-01 1967-06-01 Versiegelte Parkettplatte und Verfahren zu ihrer Herstellung

Publications (1)

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US3535839A true US3535839A (en) 1970-10-27

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US733129A Expired - Lifetime US3535839A (en) 1967-06-01 1968-05-29 Pretreated sealed parquet plate

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US (1) US3535839A (de)
JP (1) JPS4938123B1 (de)
CH (1) CH454430A (de)
DE (1) DE1759722A1 (de)
FR (1) FR1576564A (de)
GB (1) GB1217784A (de)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3908053A (en) * 1972-05-18 1975-09-23 Karl Hettich Finished parquet element
US4313775A (en) * 1979-12-20 1982-02-02 Moore Luther L Wood brick
DE3133226A1 (de) * 1981-08-21 1983-03-10 Wespanwerk Wenger AG, 8574 Lengwil, Thurgau Taeferelement
US4406099A (en) * 1980-06-18 1983-09-27 Barrett Lawrence G Unitized floor panel and method of laying the same
US4543765A (en) * 1980-06-18 1985-10-01 Barrett Lawrence G Unitized floor panel and method of laying the same
WO1993004857A1 (en) * 1991-09-04 1993-03-18 Severson Thomas A Wooden tile and method for making same
US6449913B1 (en) * 2000-02-08 2002-09-17 Floyd Shelton Parquet flooring panel comprising spaced, wooden strips secured by adhesive and forming irregular end shapes for alignment with adjacent panels
US20070011854A1 (en) * 2005-07-12 2007-01-18 Angelo Pessolano Modular set of cladding elements
US8621803B2 (en) * 2011-11-09 2014-01-07 Anatoli Efros Structural interlocking wood panel

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0378387A (ja) * 1989-08-21 1991-04-03 Misawa Homes Co Ltd 昇降式モニター装置
JPH0378386A (ja) * 1989-08-21 1991-04-03 Misawa Homes Co Ltd 昇降式モニター装置
RU2446939C1 (ru) * 2010-09-29 2012-04-10 Федеральное агентство по образованию Государственное образовательное учреждение высшего профессионального образования "Московский государственный университет леса" Способ изготовления паркетного щита

Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1433077A (en) * 1918-07-16 1922-10-24 Hansen Niels Veneering
GB291256A (en) * 1927-07-20 1928-05-31 John Elbo Improvements in or relating to floor coverings
US1778250A (en) * 1929-03-27 1930-10-14 Elmendorf Armin Method of and apparatus for treating flexible wood-veneered material
US1819775A (en) * 1929-01-24 1931-08-18 Flexwood Company Flexible wood-faced sheet material
US2118841A (en) * 1935-09-07 1938-05-31 Elmendorf Armin Flexible end grain wood floor covering
GB704707A (en) * 1951-12-24 1954-02-24 Paragon Flooring Ltd Improvements in flooring
FR1069350A (fr) * 1952-12-31 1954-07-06 Roland Blanchard Ets élément de parquet en bois et son procédé de pose
US2835936A (en) * 1953-10-29 1958-05-27 Elmendorf Armin Flexible wood floor tiles
GB965595A (en) * 1961-05-08 1964-08-06 Consortum Claro Improvements in or relating to parquet floors
GB1021062A (en) * 1962-08-31 1966-02-23 Knud Seidenfaden Improvements in or relating to parquet blocks and methods of manufacturing and laying the same
US3279138A (en) * 1965-07-02 1966-10-18 Cromar Company Surface finishing panel
US3282010A (en) * 1962-12-18 1966-11-01 Jr Andrew J King Parquet flooring block

Patent Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1433077A (en) * 1918-07-16 1922-10-24 Hansen Niels Veneering
GB291256A (en) * 1927-07-20 1928-05-31 John Elbo Improvements in or relating to floor coverings
US1819775A (en) * 1929-01-24 1931-08-18 Flexwood Company Flexible wood-faced sheet material
US1778250A (en) * 1929-03-27 1930-10-14 Elmendorf Armin Method of and apparatus for treating flexible wood-veneered material
US2118841A (en) * 1935-09-07 1938-05-31 Elmendorf Armin Flexible end grain wood floor covering
GB704707A (en) * 1951-12-24 1954-02-24 Paragon Flooring Ltd Improvements in flooring
FR1069350A (fr) * 1952-12-31 1954-07-06 Roland Blanchard Ets élément de parquet en bois et son procédé de pose
US2835936A (en) * 1953-10-29 1958-05-27 Elmendorf Armin Flexible wood floor tiles
GB965595A (en) * 1961-05-08 1964-08-06 Consortum Claro Improvements in or relating to parquet floors
GB1021062A (en) * 1962-08-31 1966-02-23 Knud Seidenfaden Improvements in or relating to parquet blocks and methods of manufacturing and laying the same
US3282010A (en) * 1962-12-18 1966-11-01 Jr Andrew J King Parquet flooring block
US3279138A (en) * 1965-07-02 1966-10-18 Cromar Company Surface finishing panel

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3908053A (en) * 1972-05-18 1975-09-23 Karl Hettich Finished parquet element
US4313775A (en) * 1979-12-20 1982-02-02 Moore Luther L Wood brick
US4406099A (en) * 1980-06-18 1983-09-27 Barrett Lawrence G Unitized floor panel and method of laying the same
US4543765A (en) * 1980-06-18 1985-10-01 Barrett Lawrence G Unitized floor panel and method of laying the same
DE3133226A1 (de) * 1981-08-21 1983-03-10 Wespanwerk Wenger AG, 8574 Lengwil, Thurgau Taeferelement
WO1993004857A1 (en) * 1991-09-04 1993-03-18 Severson Thomas A Wooden tile and method for making same
US5213861A (en) * 1991-09-04 1993-05-25 Severson Thomas A Wooden tile and method for making same
US6449913B1 (en) * 2000-02-08 2002-09-17 Floyd Shelton Parquet flooring panel comprising spaced, wooden strips secured by adhesive and forming irregular end shapes for alignment with adjacent panels
US20070011854A1 (en) * 2005-07-12 2007-01-18 Angelo Pessolano Modular set of cladding elements
US8621803B2 (en) * 2011-11-09 2014-01-07 Anatoli Efros Structural interlocking wood panel

Also Published As

Publication number Publication date
DE1759722A1 (de) 1971-07-01
JPS4938123B1 (de) 1974-10-15
CH454430A (de) 1968-04-15
FR1576564A (de) 1969-08-01
GB1217784A (en) 1970-12-31

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