Panels comprising a mechanical locking device and an assembled product comprising the panels

Patent metadata

Field	Value
Publication number	US-9714672-B2
Application number	US-201414573473-A
Country	US
Kind code	B2
Filing date	Dec 17, 2014
Priority date	Jan 10, 2014
Publication date	Jul 25, 2017
Grant date	Jul 25, 2017

Abstract

A set of panels includes a first panel having a first main plane and a second panel having a second main plane. The panels are provided with a mechanical locking device for locking a first edge of the first panel to a second edge of the second panel. The mechanical locking device includes an edge section groove at the first edge, wherein an edge section of the second edge is insertable into the edge section groove. A flexible tongue is arranged in an insertion groove provided in the edge section groove, and cooperates with a tongue groove provided at the edge section of the second panel. A first thickness of a core material between the edge section groove and the outermost surface of the first edge is greater than a minimum second thickness of a core material of the edge section of the second panel.

First claim

The invention claimed is:

1. A set of panels comprising a first panel having a first main plane and a second panel having a second main plane, wherein the first panel and the second panel are provided with a mechanical locking device for locking a first edge of the first panel to a second edge of the second panel, wherein the first main plane is essentially perpendicular to the second main plane, wherein the first panel comprises a core comprising fibres arranged essentially parallel to the first main plane and the second panel comprises a core comprising fibres arranged essentially parallel to the second main plane, and the mechanical locking device comprises:
an edge section groove at the first edge of the first panel, wherein an edge section of the second edge of the second panel is insertable into the edge section groove for locking the first panel and the second panel together in a direction parallel to the first main plane; and
a flexible tongue arranged in an insertion groove provided in the edge section groove, wherein said flexible tongue cooperates with a tongue groove provided at the edge section of the second panel, for locking the first panel and the second panel in a direction parallel to the second main plane,
wherein a first thickness, measured in a direction parallel to the first main plane, of a core material of the first panel between the edge section groove and an outermost surface of the first edge, which outermost surface extends in a direction essentially perpendicular to the first main plane, is greater than a minimum second thickness of a core material from one side of the edge section of the second panel to an opposite side of the edge section of the second panel,
wherein the outermost surface of the first edge of the first panel is essentially flush with an outer face of the second panel,
wherein the edge section groove comprises a first wall and an opposed second wall that extend essentially perpendicular to the first main plane, and a bottom wall between the first wall and the opposed second wall, and the insertion groove is located in one of the first wall and the opposed second wall.

2. The set of panels as claimed in claim 1 , wherein the first thickness is between 1.1 and 3.0 times larger than the minimum second thickness.

3. The set of panels as claimed in claim 2 , wherein the first thickness is about 1.25 times larger than the minimum second thickness.

4. The set of panels as claimed in claim 1 , wherein the edge section groove comprises a first wall and an opposed second wall, wherein the first wall is closer to the outermost surface of the first edge than the second wall, the first thickness is measured between the first wall and the outermost surface of the first edge.

5. The set of panels as claimed in claim 1 , wherein the insertion groove extends along essentially the entire length of the edge section groove of the first edge.

6. The set of panels as claimed in claim 1 , wherein the tongue groove extends along essentially the entire length of the edge section of the second panel.

7. The set of panels as claimed in claim 1 , wherein the flexible tongue is displaceable in the insertion groove during locking of the first panel with the second panel.

8. The set of panels as claimed in claim 1 , wherein the edge section of the second panel is provided with a calibrating groove.

9. The set of panels as claimed in claim 1 , wherein the first panel or the tongue groove of the second panel is provided with a dismantling recess, said dismantling recess being adapted for insertion of a dismantling tool.

10. The set of panels as claimed in claim 1 , wherein the edge section of the second panel comprises a first wall and an opposite second wall, wherein the tongue groove is provided in the first wall, and the minimum second thickness is measured between a bottom of the tongue groove and the second wall.

11. The set of panels as claimed in claim 1 , wherein the flexible tongue has a first displacement surface and a opposite second displacement surface which are configured to be displaced along a third displacement surface and a fourth displacement surface, respectively, of the insertion groove.

12. The set of panels as claimed in claim 1 , wherein the core material of the first panel and the second panel comprises a wood fibre based board, that is at least one of HDF, MDF, plywood, solid wood or particleboard, a reinforced plastic board and a wood fibre composite board.

13. An assembled product comprising panels of the set of panels as claimed in claim 1 that are locked together to form the assembled product.

Assignees

• Valinge Innovation Ab

Inventors

• Derelöv Peter

Classifications

• F16B12/125

  using mortise and tenon joints · CPC title

• F16B2012/466

  using mortise and tenon joints · CPC title

• Y10T403/1674

  Cross-Sectional Technologies · mapped topic

• F16B12/46

  Non-metal corner connections · CPC title

• A47B47/042 Primary

  Panels connected without frames · CPC title