Floorboards with decorative grooves

• US 20040035078A1
• Filed: 04/15/2003
• Published: 02/26/2004
• Est. Priority Date: 03/20/2002
• Status: Active Grant

• Current Assignee: Valinge Innovation AB
• Original Assignee: Valinge Aluminium AB (Valinge Innovation AB)
• Inventors: Pervan, Darko
• Granted Patent: US 7,137,229 B2
• Time in Patent Office: Days
• US Class Current: 52/589.1
• CPC Class Codes: B23C 3/305 in which more than one milling tool is used simultaneously, e.g. for sheet material
• CPC Class Codes: B27F 1/06 simultaneously along opposite edges of a board
• CPC Class Codes: B27M 3/04 of flooring elements, e.g. parqueting blocks assembling wooden elements on backings of other substances B32B, e.g. B32B21/042, E04F15/16; furniture joints F16B12/00
• CPC Class Codes: B32B 2419/04 Tiles for floors or walls
• CPC Class Codes: B32B 2451/00 Decorative or ornamental articles
• CPC Class Codes: B32B 3/02 characterised by features of form at particular places, e.g. in edge regions non-uniform thickness B32B3/263
• CPC Class Codes: B32B 3/06 for securing layers together; for attaching the product to another member, e.g. to a support , or to another product, e.g. groove/tongue, interlocking
• CPC Class Codes: B32B 38/105 on edges
• CPC Class Codes: B44C 1/222 using machine-driven mechanical means
• CPC Class Codes: B44C 5/04 Ornamental plaques, e.g. decorative panels, decorative veneers
• CPC Class Codes: B44C 5/0469 comprising a decorative sheet and a core formed by one or more resin impregnated sheets of paper
• CPC Class Codes: E04F 15/02 Flooring or floor layers composed of a number of similar elements of webs E04F15/16
• CPC Class Codes: E04F 15/02033 Joints with beveled or recessed upper edges
• CPC Class Codes: E04F 15/02161 Floor elements with grooved main surface
• CPC Class Codes: E04F 15/04 only of wood or with a top layer of wood, e.g. with wooden or metal connecting members rollable parquet E04F15/16
• CPC Class Codes: E04F 15/045 Layered panels only of wood
• CPC Class Codes: E04F 2201/0115 with snap action of the edge connectors
• CPC Class Codes: E04F 2201/0153 by rotating the sheets, plates or panels around an axis which is parallel to the abutting edges, possibly combined with a sliding movement
• CPC Class Codes: E04F 2201/023 with a continuous tongue or groove
• CPC Class Codes: E04F 2201/025 with tongue and grooves alternating transversally in the direction of the thickness of the panel, e.g. multiple tongue and grooves oriented parallel to each other
• CPC Class Codes: F16B 5/008 : by a rotating or sliding and rotating movement
• CPC Class Codes: Y10T 156/108 : Flash, trim or excess removal
• CPC Class Codes: Y10T 29/49629 : Panel
• CPC Class Codes: Y10T 29/49936 : Surface interlocking
• CPC Class Codes: Y10T 29/49982 : Coating
• CPC Class Codes: Y10T 428/167 : Cellulosic sections [e.g., parquet floor, etc.]

Abstract

Floorboards consisting of a core and a surface layer with decorative joint edge portions which are formed by removing the surface layer.

Claims

1. A system for making a decorative joint edge portion (20, 21) between two adjoining edges (4a, 4b;

5a, 5b) of floorboards (1, 1′

) which have a core (30) and a surface layer (31) which is arranged on the upper side of the core and whose outer parts constitute a horizontal plane (HP), said surface layer consisting of at least one decorative layer (35) and a reinforcing layer (36a) arranged under the decorative surface layer, and which at their adjoining joint edge portions (4a, 4b, 5a, 5b) have connecting means (9, 10, 8, 12) for connecting the floorboards with each other in the vertical direction and which meet in a vertical joint plane (VP), characterized in that the joint edge portions (4a, 4b, 5a, 5b), adjoining each other, of the floorboards (1, 1′

) have a surface which consists of the reinforcing layer (36a) and which is essentially parallel to the horizontal plane (HP).

2. A system as claimed in claim 1, characterized in that from the joint plane (VP) the reinforcing layer (36a) extends inwards to the floorboard (1, 1′

) a distance (P1) which is at least 0.1 times the thickness (T) of the floorboard.

3. A system as claimed in claim 1 or 2, characterized in that the reinforcing layer (36a) is positioned at a distance (P2) from the horizontal plane (HP) which is at least 0.1 times the thickness of the surface layer (31).

4. A system as claimed in any one of the preceding claims, characterized in that the connecting means (9, 10, 8, 12) are formed for mechanical joining of neighboring floorboards (1, 1′

) about a vertical plane (VP) both perpendicular thereto and perpendicular to the front side of the floorboard.

5. A system as claimed in any one of the preceding claims, characterized in that the floorboards (1, 1′

) are quadrilateral and have a surface layer (31) of laminate and a decorative joint edge portion (20, 21) in all their opposite joint edge portions.

6. A system as claimed in any one of the preceding claims, characterized in that the connecting means (9, 10, 8, 12) are formed for joining a floorboard (1) with a previously installed floorboard (1′

) by inward angling and/or snapping-in to a locked position.

7. A floorboard which has a core (30) and at least one surface layer (31) arranged on the upper side of the core, the outer part of the surface layer constituting a horizontal plane (HP), said surface layer consisting of at least one decorative layer (31) and a reinforcing layer (36a) which is arranged under the decorative surface layer, and which at least at two opposite parallel joint edge portions has connecting means (9, 10, 8, 12) for joining the floorboard with similar floorboards in the vertical and horizontal direction, characterized in that the joint edge portions (4a, 4b, 5a, 5b), adjoining each other, of the floorboards (1, 1′

) have a surface which consists of the reinforcing layer (36a) and is essentially parallel to the horizontal plane (HP).

8. A system for making a decorative joint edge portion (20, 21) between two adjoining edges (4a, 4b;

5a, 5b) of floorboards (1, 1′

), which have a core (30) and a surface layer (31) arranged on the upper side of the core, the outer parts of the surface layer constituting a horizontal plane (HP), said surface layer consisting of at least one decorative layer (35), and which at their adjoining joint edge portions (4a, 4b;

5a, 5b) have connecting means (6-10, 12, 14, 18) for joining the floorboards with each other in the vertical direction and which meet in a vertical joint plane (VP), characterized in that the joint edge portions (4a, 4b, 5a, 5b), adjoining each other, of the floorboards (1, 1′

) have a surface which consists of the core (30) and which is essentially parallel to the horizontal plane (HP);

9. A system as claimed in claim 8, characterized in that from the joint plane (VP), the surface of the core extends inwards to the floorboard (1, 1′

) a distance (P1) which is at least 0.1 times the thickness of the floorboard.

10. A system as claimed in claim 9, characterized in that the connecting means (9, 10, 8, 12) are formed for mechanical joining of neighboring floorboards (1, 1′

) about a vertical plane (VP) both perpendicular thereto and perpendicular to the front side of the floorboard.

11. A system as claimed in any one of claims 7-10, characterized in that the floorboards (1, 1′

) are quadrilateral and have a surface layer (31) of laminate and all their opposite joint edge portions impregnated.

12. A system as claimed in claims 7-11, characterized in that the connecting means (9, 10, 8, 12) are formed for joining a floorboard (1) with a previously installed floorboard (1′

) by inward angling and/or snapping-in to a locked position.

13. A floorboard, which has a core (30) and at least one surface layer (31) arranged on the upper side of the core, the outer parts of the surface layer constituting a horizontal plane (HP), said surface layer consisting of at least one decorative layer (35), and which at least at two opposite parallel joint edge portions has connecting means (9, 10, 8, 12) for joining the floorboard with similar floorboards in the vertical and horizontal direction, characterized in that the joint edge portion (4a, 4b, 5a, 5b), adjoining each other, of the floorboards (1, 1′

) have a surface which consists of the core (30) and which is parallel to the horizontal plane (HP).