Classifications

• • A—HUMAN NECESSITIES
  • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
  • A47B—TABLES; DESKS; OFFICE FURNITURE; CABINETS; DRAWERS; GENERAL DETAILS OF FURNITURE
  • A47B96/00—Details of cabinets, racks or shelf units not covered by a single one of groups A47B43/00 - A47B95/00; General details of furniture
  • A47B96/20—Furniture panels or like furniture elements
  • A47B96/205—Composite panels, comprising several elements joined together
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B32—LAYERED PRODUCTS
  • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
  • B32B21/00—Layered products comprising a layer of wood, e.g. wood board, veneer, wood particle board
  • B32B21/04—Layered products comprising a layer of wood, e.g. wood board, veneer, wood particle board comprising wood as the main or only constituent of a layer, which is next to another layer of the same or of a different material
  • B32B21/047—Layered products comprising a layer of wood, e.g. wood board, veneer, wood particle board comprising wood as the main or only constituent of a layer, which is next to another layer of the same or of a different material of foam
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
  • B27D—WORKING VENEER OR PLYWOOD
  • B27D1/00—Joining wood veneer with any material; Forming articles thereby; Preparatory processing of surfaces to be joined, e.g. scoring
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
  • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
  • B29C44/00—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
  • B29C44/02—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles for articles of definite length, i.e. discrete articles
  • B29C44/12—Incorporating or moulding on preformed parts, e.g. inserts or reinforcements
  • B29C44/1228—Joining preformed parts by the expanding material
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B32—LAYERED PRODUCTS
  • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
  • B32B21/00—Layered products comprising a layer of wood, e.g. wood board, veneer, wood particle board
  • B32B21/04—Layered products comprising a layer of wood, e.g. wood board, veneer, wood particle board comprising wood as the main or only constituent of a layer, which is next to another layer of the same or of a different material
  • B32B21/08—Layered products comprising a layer of wood, e.g. wood board, veneer, wood particle board comprising wood as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B32—LAYERED PRODUCTS
  • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
  • B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
  • B32B5/18—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by features of a layer of foamed material
• • 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
  • E04F15/022—Flooring consisting of parquetry tiles on a non-rollable sub-layer of other material, e.g. board, concrete, cork
• • 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
  • E04F15/041—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 with a top layer of wood in combination with a lower layer of other material
  • E04F15/043—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 with a top layer of wood in combination with a lower layer of other material the lower layer being of organic plastic with or without reinforcements or filling materials
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
  • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
  • B29K2711/00—Use of natural products or their composites, not provided for in groups B29K2601/00 - B29K2709/00, for preformed parts, e.g. for inserts
  • B29K2711/14—Wood, e.g. woodboard or fibreboard
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B32—LAYERED PRODUCTS
  • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
  • B32B2266/00—Composition of foam
  • B32B2266/02—Organic
  • B32B2266/0214—Materials belonging to B32B27/00
  • B32B2266/0278—Polyurethane
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B32—LAYERED PRODUCTS
  • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
  • B32B2266/00—Composition of foam
  • B32B2266/08—Closed cell foam
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B32—LAYERED PRODUCTS
  • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
  • B32B2607/00—Walls, panels

Definitions

• a paneling board with a wooden sight surface and method of manufacturing same
• This invention relates to a paneling board with a wooden sight surface, and a method of manufacturing same.
• Such boards generally comprise a prime surface provided by a veneer of quality wood and intended to be in sight in the installed condition of the board, which veneer is glued to a support ply usually provided by some low-quality wood agglomerate, e.g. -the agglomerate known as shake.
• the thickness of the strips used for their construction is bound to be comparatively high, at least when compared with that of the thin veneering of the boards used for wall paneling.
• parquet floorings In addition to their high cost, parquet floorings have some well-recognized disadvantages in that they are relatively difficult to install, require the availability of qualified personnel, and that the finished flooring is apt to set over time because shrinkage, distortion, or even breakaway and partial buckling of the parquet off the substrate are likely to occur later according to the degree of seasoning and the moisture content of the installed wooden strips.
• the underlying problem of this invention is to provide a board which is designed for use in panelings of any kinds, and particularly in floorings, without incurring the problems with which the prior art referred to is beset.
• a paneling board with a wooden sight surface being characterised in that it comprises a first ply including at least one wooden strip bonded to a second, supporting ply made of a plastics material.
• This board construction owing to a reduced consumption of valuable material (wood), can be less expensive for the same area of paneled surface than traditional parquet floorings, while providing unaltered strength features and being in particular unaffected by moisture from the floor substrate.
• said first ply comprises a plurality of wooden strips laid side-by-side, and in a further aspect, said supporting ply comprises a foam resin.
• This configuration can provide boards in varying sizes without the boards being liable to become distorted, particularly after their installation, and add to the above-noted strength and imperviousness, improved sound-deafening and thermal insulating features for the board.
• said strips forming the first ply are so arranged as to define corresponding gaps between adjacent strips, said supporting ply surfacing at least in part through said gaps.
• This construction affords further improvement of the board imperviousness to liquids spilled onto the wooden sight surface.
• Figure 1 is a perspective top view of a board embodying this invention
• FIG. 1 is a fragmentary perspective bottom view of the board shown in Figure 1
• Figure 3 shows the board of the preceding figures in side elevation
• Figure 4 is a fragmentary sectional representation of one step of the manufacturing process of the board shown in the preceding figures.
• Figure 5 is a perspective view of another embodiment of this invention partially in cross section.
• the board 1 comprises a first ply, generally shown at 2, which is made up of plural wooden strips 3 laid side-by-side, and a second ply also referred to hereinafter as the supporting ply and being generally indicated at 4, which is made of foam plastics, preferably a closed-cell rigid polyurethane plastics foam.
• a substantially flat surface 5 is defined on the first ply 2 which is to remain in full sight with the board in the installed condition.
• the dimensional ratio of the thickness (as measured perpendicularly to the surface 5) of the first ply to that of the second lies preferably within the range of 1:1 to 1:20.
• the first ply may have a thickness dimension in the 2 to 6 mm range
• the thickness of the second ply may be in the 5 to 30 mm range.
• a preferred material for the second ply mention can be made of a polyurethane resin
• gaps 6 are filled with material from the second ply 4, which rises to the Level of the surface 5.
• said material will provide a film enveloping the whole periphery of the board 1 or at least major sections thereof.
• the strips 3 are first laid into a mold 10 which is closed by a detachable lid 11, thereby said strips will rest side-by-side on a bottom wall 12 of the mold 10.
• Said wall 12 is moderately arcuate (the curvature being shown exaggerated in Figure 4 for clarity of illustration) with its convex side facing the lid 11.
• a plurality of pips 13 are provided on the lid which are effective to produce the recesses 7 in the second ply 4 as explained hereinafter.
• the pips 13 are arranged to urge the strips 3 against the wall 12 and force them into a bent configuration with the convex side toward the second ply 4. They provide a means of holding the strips 3 pressed against the mold bottom wall 12; any equivalent means may be used for the same purpose, such as vacuum-forming pneumatic arrangements drawing through the wall 12 to urge the strips thereagainst, or some different pressure members between the strips and the mold lid 11.
• a polyurethane resin in a flowable state is injected or anyhow introduced into the mold 10 which can be later foamed and cured.
• the resin will flow through the gaps 6 usually left, at least partway between adjacent strips 3, and up across the walls of the mold 10 to envelop the periphery of the board 1 being formed.
• the polyurethane resin On hardening and curing, the polyurethane resin will provide the second ply 4.
• the surface 5 of the board 1 may be smoothed prior to its installation and given a coat of varn.ish as indicated at 14 in Figure 3.
• the board could be first installed as supplied in an already excellent state of finish, and then smoothed and/or varnished.
• the board 101 is substantially identical to the board 1 of the first example except for the provision of reinforcing steel bars 102, omega shaped in cross section, extending transversely with respect to the general longitudinal dimension of the wood strips 3.
• Each bar 102 is provided with two wings 102a,b facing the lower surface of the wood strips 3. Projecting from each wing is a plurality of nail members 103 subjected to penetrate into the wood of the strips 3 for holding fast the wood and the bars to each other. Distortion of the board 101 is thereby prevented in any condition.
• the bars 102 also constitute pressure members for holding the strips 3 pressed against the mould bottom wall 12 while the board is being manufactured.
• the boards provided are truly waterproof also and particularly as regards their surface in contact with the floor substrate. This enables installation of the boards with no risk of any moisture in the substrate causing distortions or damage to the installed flooring.

Landscapes

• Engineering & Computer Science (AREA)
• Life Sciences & Earth Sciences (AREA)
• Architecture (AREA)
• Wood Science & Technology (AREA)
• Civil Engineering (AREA)
• Structural Engineering (AREA)
• Mechanical Engineering (AREA)
• Forests & Forestry (AREA)
• Finishing Walls (AREA)
• Laminated Bodies (AREA)
• Floor Finish (AREA)

Applications Claiming Priority (2)

Publications (1)

Family

ID=11251059

Family Applications (1)

Country Status (3)

Cited By (3)

Citations (8)

• 1990
  • 1990-03-09 IT IT41552A patent/IT1238840B/it active IP Right Grant
• 1991
  • 1991-03-05 WO PCT/EP1991/000410 patent/WO1991013755A1/en unknown
  • 1991-03-05 AU AU73454/91A patent/AU7345491A/en not_active Abandoned

Patent Citations (8)

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