Patent Grant
10724564
The present application claims the benefit of Swedish Application No. SE 1651409-3, filed on Oct. 27, 2016. The entire contents of Swedish Application No. SE 1651409-3 are hereby incorporated herein by reference in their entirety.
Embodiments of the present invention relate to panels that may be arranged perpendicular to each other and locked together with a mechanical locking device. The panels may be assembled and locked together to obtain a furniture product, such as a bookshelf, a cupboard, a wardrobe, a box, a drawer or a furniture component. The locking device may comprise a flexible tongue.
A furniture product provided with a mechanical locking device is known in the art, as evidenced by WO2015/038059. The furniture product comprises a first panel connected perpendicular to a second panel by a mechanical locking device comprising a flexible tongue in an insertion groove.
The above description of various known aspects is the applicant's characterization of such, and is not an admission that any of the above description is considered as prior art.
It is an object of certain embodiments of the present invention to provide an improvement over the above described techniques and known art; particularly, to reduce the size of the insertion groove at the second panel surface of the second panel. The reduced size may have the advantage of an increased locking strength.
At least some of these and other objects and advantages that will be apparent from the description have been achieved by a first aspect of the invention that includes a set comprising a first panel, a second panel and a mechanical locking device for locking the first panel to the second panel. The first panel comprises a first edge surface and a first panel surface. The second panel comprises a second edge surface and a second panel surface. The first edge surface is facing the second panel surface in a locked position of the first and the second panel. The mechanical locking device comprises a rod-shaped element at the first edge surface and an insertion groove at the second panel surface. The mechanical locking device further comprises an edge groove at the second edge surface and a flexible tongue positioned in the edge groove. The rod-shaped element comprises a recess. The rod-shaped element is configured to be inserted into the insertion groove, and the flexible tongue is configured to cooperate with the recess for a locking of the first panel to the second panel in a first direction which is perpendicular to the second panel surface.
A locking surface of the flexible tongue may cooperate with a locking surface of the recess for the locking of the first panel to the second.
The insertion groove may be formed in the second panel surface and in a core of the second panel.
The second panel surface may comprise a decorative layer and the insertion groove may extend though the decorative layer.
The insertion groove may be formed by mechanical cutting, such as milling, drilling or sawing.
The rod-shaped element and the insertion groove at the second panel surface may have the advantage that the sizes of the grooves of the locking device are reduced compared to the known mechanical locking devices. An edge element, such as an edge band, is preferably attached to the second edge for covering the edge groove and for enforcing the second edge.
A further advantage may be that the insertion groove may be produced by drilling, which may improve the position of the first panel relative the second panel in the locked position.
The first panel and the second panel are preferably panels for a furniture product and may be a part of a frame of a furniture product.
The set is preferably configured for locking the first panel to the second panel with the first panel surface perpendicular or essentially perpendicular to the second panel surface.
The mechanical locking device is preferably configured to automatically lock the first panel to the second panel when the rod-shaped element is inserted into the insertion groove and the first edge surface is arranged against second panel surface.
The rod-shaped element is preferably configured to cooperate with the insertion groove for a locking of the first panel to the second panel in a second direction which is perpendicular to the first panel surface.
The rod-shaped element is preferably configured to cooperate with the insertion groove for a locking of the first panel to the second panel in a third direction which is perpendicular to the first direction and the second direction.
The rod-shaped element preferably has a longitudinal shape with a length direction which is parallel to the first panel surface.
A first crosscut of the rod-shaped element, in a plane parallel to the second panel surface, may have a circular shape or a rectangular shape.
A second cross cut of the insertion groove, in a plane parallel to the second panel surface, preferably has a shape that matches the first cross cut.
The insertion groove may extend from the second panel surface to the edge groove.
A part of the rod-shaped element, such as an outer surface or an envelope surface of the rod shaped element, may be configured to cooperate, for the locking in the second direction, with side walls of the of the insertion groove.
The sidewalls may comprise material of the core of the second panel.
The insertion groove may be a bottom-ended groove, such as a bottom ended drill hole, comprising a bottom surface which is positioned at a distance from the edge groove.
The insertion groove may have a first part on a first side of the edge groove and a second part on a second side of the edge groove, wherein the second part comprises a bottom surface and side walls, wherein, in a locked position, the rod-shaped element passes through the first part of the insertion groove, through the edge groove and into the second part of the insertion groove.
The rod-shaped element may be configured to cooperate, in a locked position, with the bottom surface.
The first edge surface may comprise two or more of said rod shaped element and the second panel surface may comprise two or more of said insertion groove, preferably arranged linearly, wherein each of the rod-shaped elements is configured to be inserted into one of the insertion grooves.
The edge groove may be formed in the second edge surface and in the core of second panel by e.g. mechanical cutting, such as milling, drilling or sawing.
The edge groove may comprise a circular cross section in a plane parallel to the first panel surface.
The edge groove may be a longitudinal groove that extends in a longitudinal direction of the second edge surface.
The edge groove may extend from the second edge surface to the insertion groove.
The edge groove may be a bottom-ended groove, comprising a bottom surface which is positioned at a distance from the insertion groove.
The flexible tongue is preferably arranged at the bottom surface of the edge groove.
The flexible tongue may be arranged between the recess and the bottom surface of the edge groove in the locked position
The rod-shaped element may be configured to be attached in an attachment groove in the first edge surface. An advantage with this embodiment may be that the material waste for the production of the first panel is reduced.
The insertion groove may be adjacent the second edge surface.
The second edge surface may be essentially perpendicular to the second panel surface.
The edge groove may have a length direction extending along the second edge.
The flexible tongue is preferably displaceable in the edge groove.
The flexible tongue may be according to the flexible tongue described and shown in FIGS. 2A-2F in WO2015/105449. FIGS. 2A-2F and the related disclosure from page 6, line 15 to page 7, line 2, in WO2015/105449 are hereby expressly incorporated by reference herein.
The core of the first panel and/or of the second panel may be a wood-based core, preferably made of MDF, HDF, OSB, WPC, plywood or particleboard. The core may also be a plastic core comprising thermosetting plastic or thermoplastic e.g. vinyl, PVC, PU or PET. The plastic core may comprise fillers.
The first panel and/or the second panel may also be of solid wood.
The first panel and/or the second panel may be provided with a decorative layer, such as a foil or a veneer, on one or more surfaces.
The present invention will by way of example be described in more detail with reference to the appended schematic drawings, which shows embodiments of the present invention.
Specific embodiments of the invention will now be described with reference to the accompanying drawings. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art. The terminology used in the detailed description of the embodiments illustrated in the accompanying drawings is not intended to be limiting of the invention. In the drawings, like numbers refer to like elements.
A first embodiment of the invention is shown in
The first panel 1 and the second panel 2 are preferably panels for a furniture product and may be a part of a frame of a furniture product.
The set is preferably configured for locking the first panel 1 to the second panel 2 with the first panel surface 13 perpendicular or essentially perpendicular to the second panel surface 3.
The insertion groove 7 may be formed in the second panel surface 3 and in a core of the second panel 2.
The second panel surface 3 may comprise a decorative layer and the insertion groove may extend though the decorative layer.
The insertion groove may be formed by mechanical cutting, such as drilling.
An edge element 10, such as an edge band, is preferably attached to the second edge for covering the edge groove 5 and for enforcing the second edge 4. The edge element 10 may be glued to the second edge or attached by a mechanical locking device, which may comprise a part that protrudes from the edge element and is configured to be inserted into the edge groove 5. The part may be attached to the edge groove 5 by friction. The edge element is in
An embodiment of the flexible tongue 6 is shown in
The second part may comprise a first bevel 65 which configured to cooperate with the rod-shaped element 8 during assembling and a second bevel 64 which is configured to cooperate with the recess for the locking.
The flexible tongue may comprise a flexible material to enable compression and a displacement of the flexible tongue in the edge groove during assembling.
The flexible tongue may comprise an element which is flexible to enable compression and a displacement of the flexible tongue in the edge groove during assembling and another element which is less flexible in order to improve the locking strength.
A part of the envelope surface of the flexible tongue 6 may be configured to be displaced against a surface, such as a cylindrical surface, of the edge groove 5.
The first edge surface 12 may comprise two or more of said rod shaped element and the second panel surface 3 may comprise two or more of said insertion groove 7, preferably arranged linearly, wherein each of the rod-shaped elements is configured to be inserted into one of the insertion grooves.
A locking of the first panel to the second panel in a second direction which is perpendicular to the first panel surface may be obtained by cooperating locking surfaces between the insertion groove 7 and the rod-shaped element 8.
A locking of the first panel to the second panel in a third direction which is perpendicular to the first direction and the second direction surface may be obtained by cooperating locking surfaces between the insertion groove 7 and the rod-shaped element 8.
A second cross cut of the insertion groove 7, in a plane parallel to the second panel surface, preferably has a shape that matches a first cross cut of the rod-shaped element 8, in a plane parallel to the second panel surface. An advantage of this may be that an improved locking of the first panel to the second panel in the second direction is obtained and/or an improved locking of the first panel to the second panel in a third direction is obtained.
A locking surface 62 of the flexible tongue 6 may cooperate with a locking surface 82 of the recess 9 for the locking of the first panel to the second.
The insertion groove may a bottom-ended groove, such as a bottom ended drill hole, comprising a bottom surface 43 which is positioned at a distance from the edge groove 5.
The insertion groove may have a first part on a first side of the edge groove 5 and a second part on a second side of the edge groove 5, wherein the second part comprises a bottom surface 43 and side walls 71, 72, wherein, in a locked position, the rod-shaped element passes through the first part of the insertion groove, through the edge groove 5 and into the second part of the insertion groove.
The rod-shaped element 8 may be configured to cooperate, for the locking in the second direction, with the side walls 71, 72 of the second part of the insertion groove.
The rod-shaped element 8 may be configured to cooperate, in a locked position, with the bottom surface 43.
The first part may comprise side walls 73, 74, wherein the rod-shaped element 8 may be configured to cooperate, for the locking in the second direction, with side walls 73, 74 of the first part.
The edge groove may extend from the second edge surface 4 to the insertion groove 7.
The edge groove 5 may be a bottom-ended groove, comprising a bottom surface 44 which is positioned at a distance from the insertion groove 7.
The flexible tongue 6 may be arranged at the bottom surface 44 of the edge groove 5.
The flexible tongue may be arranged between the recess 9 and the bottom surface 44 of the edge groove in the locked position.
The rod-shaped element 8 may be configured to be attached in an attachment groove 45 in the first edge surface 12.
The rod-shaped element 8 may be configured to be glued in the attachment groove 45 in the first edge surface 12.
The rod-shaped element 8 may be configured to be locked in the attachment groove 45 by a friction connection or by a mechanically connection, such as threads or by a locking element, such as a barb.
The second edge surface 4 may be essentially perpendicular to the second panel surface 3.
A second embodiment of the invention is shown in
The insertion groove 7 may be formed in the second panel surface 3 and in a core of the second panel 2.
The second panel surface 3 may comprise a decorative layer and the insertion groove may extend though the decorative layer.
The insertion groove may be formed by mechanical cutting, such as milling or sawing.
An edge element 10, such as an edge band, is preferably attached to the second edge for covering the edge groove and for enforcing the second edge 4. The edge element 10 may be glued to the second edge or attached by a mechanical locking device, which may comprise a part that protrudes from the edge element and is configured to be inserted into the edge groove 5. The part may be attached to the edge groove by friction. The edge element is in
The first panel 1 and the rod-shaped element 8 of the second embodiment may be identical to the first panel 1 and the rod-shaped element 8, respectively, of the first embodiment.
An embodiment of the flexible tongue 6 is shown in
The first essentially edge may comprise a first bevel 65 which configured to cooperate with the rod-shaped element 8 during assembling and/or a second bevel 64 which is configured to cooperate with the recess for the locking.
A locking surface 62 of the flexible tongue 6 may cooperate with a locking surface 82 of the recess 9 for the locking of the first panel to the second.
The insertion groove may a bottom-ended groove, such as a bottom ended drill hole, comprising a bottom surface 43 which is positioned at a distance from the edge groove 5.
The insertion groove may have a first part on a first side of the edge groove 5 and a second part on a second side of the edge groove 5, wherein the second part comprises a bottom surface 43 and side walls 71, 72, wherein, in a locked position, the rod-shaped element passes through the first part of the insertion groove, through the edge groove 5 and into the second part of the insertion groove.
The rod-shaped element 8 may be configured to cooperate, for the locking in the second direction, with the side walls 71, 72 of the second part of the insertion groove.
The rod-shaped element 8 may be configured to cooperate, in a locked position, with the bottom surface 43.
The first part may comprise side walls 73, 74, wherein the rod-shaped element 8 may be configured to cooperate, for the locking in the second direction, with side walls 73, 74 of the first part.
The edge groove may extend from the second edge surface 4 to the insertion groove 7.
The edge groove 5 may comprise a first surface, an opposite second surface and a bottom surface 44 extending between the first surface and the opposite second surface.
The bottom surface may be positioned at a distance from the insertion groove 7.
The bendable part 61 of the flexible tongue 6 may be arranged at the bottom surface 44 of the edge groove 5.
The flexible tongue 6 may be arranged at the bottom surface 44 of the edge groove 5.
The flexible tongue may be arranged between the recess 9 and the bottom surface 44 of the edge groove in the locked position.
A part of the flexible tongue 6 may be configured to be displaced against a surface of the edge groove 5, such as the first surface and/or the second surface.
The rod-shaped element 8 may be configured to be attached in an attachment groove 45 in the first edge surface 12.
The rod-shaped element 8 may be configured to be glued in the attachment groove 45 in the first edge surface 12.
The rod-shaped element 8 may be configured to be locked in the attachment groove 45 by a friction connection or by a mechanically connection, such as threads or by a locking element, such as a barb.
The second edge surface 4 may be essentially perpendicular to the second panel surface 3. The flexible tongue 6 may be according to the flexible tongue described and shown in FIGS. 2A-2F in WO2015/105449. FIGS. 2A-2F and the related disclosure from page 6, line 15 to page 7, line 2, in WO2015/105449 are hereby expressly incorporated by reference herein.
The core of the first panel 1 and/or of the second panel 2 may be a wood-based core, preferably made of MDF, HDF, OSB, WPC, plywood or particleboard. The core may also be a plastic core comprising thermosetting plastic or thermoplastic e.g. vinyl, PVC, PU or PET.
The plastic core may comprise fillers.
The first panel 1 and/or the second panel 2 may also be of solid wood.
The first panel 1 and/or the second panel 2 may be provided with a decorative layer, such as a foil or a veneer, on one or more surfaces.
1. A set comprising a first panel (1), a second panel (2) and a mechanical locking device for locking the first panel to the second panel, wherein the first panel (1) comprises a first edge surface (12) and a first panel surface (13), wherein the second panel (2) comprises a second edge surface (4) and a second panel surface (3), wherein the first edge surface (12) is facing the second panel surface (3) in a locked position of the first and the second panel, characterized in
that the mechanical locking device comprises a rod-shaped element (8) at the first edge surface (12) and an insertion groove (7) at the second panel surface (3),
that the mechanical locking device comprises an edge groove (5) at the second edge surface (4) and a flexible tongue (6) positioned in the edge groove (5),
that the rod-shaped element (8) comprises a recess (9),
that the rod-shaped element (8) is configured to be inserted into the insertion groove (7), and
that the flexible tongue (6) is configured to cooperate with the recess (9) for a locking of the first panel (1) to the second panel (2) in a first direction which is perpendicular to the second panel surface (3).
2. The set as in embodiment 1, wherein the insertion groove (7) extends from the second panel surface (3) to the edge groove (5).
3. The set as in embodiments 1 or 2, wherein the mechanical locking device is configured to automatically lock the first panel (1) to the second panel (2) when the rod-shaped element (8) is inserted into the insertion groove (7) and the first edge surface (12) is arranged against second panel surface (3).
4. The set as in any one of the embodiments 1-3, wherein the rod-shaped element (8) has a longitudinal shape with a length direction which is parallel to the first panel surface.
5. The set as in any one of the embodiments 1-4, wherein a first crosscut of the rod-shaped element (8), in a plane parallel to the second panel surface (3) has a circular shape or a rectangular shape.
6. The set as in any one of the embodiments 1-5, wherein a second cross cut of the insertion groove (7), in a plane parallel to the second panel surface, has a shape that matches a first cross cut of the rod-shaped element (8), in a plane parallel to the second panel surface.
7. The set as in any one of the embodiments 1-6, wherein the insertion groove is a bottom-ended groove, such as a bottom ended drill hole, comprising a bottom surface (43) which is positioned at a distance from the edge groove (5).
8. The set as in embodiment 7, wherein the insertion groove has a first part on a first side of the edge groove (5) and a second part on a second side of the edge groove (5), wherein the second part comprises the bottom surface (43) and side walls (71, 72), wherein, in a locked position, the rod-shaped element passes through the first part of the insertion groove, through the edge groove (5) and into the second part of the insertion groove.
9. The set as in embodiment 8, wherein the rod-shaped element (8) is configured to cooperate with the side walls (71, 72) of the second part of the insertion groove.
10. The set as in embodiments 8 or 9, wherein the rod-shaped element (8) is configured to cooperate with the bottom surface (43).
11. The set as in any one of the embodiments 1-10, wherein the first edge surface (12) comprises two or more of said rod shaped element and the second panel surface (3) comprises two or more of said insertion groove (7), preferably arranged linearly, wherein each of the rod-shaped elements is configured to be inserted into one of the insertion grooves.
12. The set as in any one of the embodiments 1-11, wherein the edge groove (5) comprises a circular cross section.
13. The set as in any one of embodiments 1-11, wherein the edge groove (5) is a longitudinal groove that extends in a longitudinal direction of the second edge surface (4).
14. The set as in any one of the embodiments 1-13, wherein the edge groove extends from the second edge surface (4) to the insertion groove (7).
15. The set as in any one of the embodiments 1-14, wherein the edge groove (5) is a bottom-ended groove, comprising a bottom surface (44) which is positioned at a distance from the insertion groove (7).
16. The set as in embodiment 15, wherein the flexible tongue (6) is arranged at the bottom surface (44) of the edge groove (5).
17. The set as in embodiments 15 or 16, wherein the flexible tongue is arranged between the recess (9) and the bottom surface (44) of the edge groove in the locked position.
18. The set as in any one of the embodiments 16-17, wherein the rod-shaped element (8) is configured to be attached in an attachment groove (45) in the first edge surface (12).
19. The set as in any one of the embodiments 1-18, wherein the second edge surface (4) is essentially perpendicular to the second panel surface (3).
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