Technical field of the invention

Embodiments of the present invention relate to a method of assembling a product, such as a furniture component or a furniture, such as a drawer, a cupboard,

bookshelves, a wardrobe, a kitchen fixture, or a box for storing or transporting. The product comprises panels that may be arranged and connected perpendicular to each other and locked together with a mechanical locking device.

Technical background

A furniture product provided with a mechanical locking device is known in the art, as evidenced by W02015/038059. 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.

A set of panels for an assembled product, together with a method of assembling a set of panels to obtain an assembled product, is known in the art, as evidenced by W02015/105451. 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.

Embodiments of the present invention address a need to provide a method of assembling panels, which method can be automated.

Summary of the invention It is an object of certain aspects of the present invention to provide an improvement over the above described techniques and known art; particularly to improve the method for assembling a product, such as a furniture product.

A further object of at least certain aspects of the present invention is to facilitate assembling of panels configured to be assembled with a locking device that is easy to manufacture and to use, which reduces the risk of incorrect installation thereof. At least some of these and other objects and advantages that will be apparent from the description have been achieved by a method of assembling a set of panels, to obtain an assembled product, such as a furniture component or a furniture, such as a drawer, a cupboard, bookshelves, a wardrobe, a kitchen fixture, or a box for storing ortransporting, comprising connecting a first edge of a first panel, with a first main plane, to a first edge of a second panel, with a second main plane, the first main plane is arranged with a first angle in relation to the second main plane, the method comprising: arranging a third panel with a third main plane perpendicular to the first main plane, arranging a first edge of the third panel at a second edge of the second panel and arranging the third main plane with a second angle in relation to the second main plane; connecting the first edge of the third panel to the second edge of the second panel, by displacing the third panel and/or the second panel; and connecting a second edge of the third panel to a second edge of the first panel and connecting the first edge of the third panel to the second edge of the second panel by pivoting the third panel in relation to the second main plane, so that the second angle between the third main plane and the second main plane is reduced to 90°.

According to an aspect the method comprises arranging a fourth panel, with a fourth main plane, perpendicular to the first main plane, arranging a first edge of the fourth panel at a third edge of the second panel and arranging the fourth main plane with a third angle in relation to the second main plane; and connecting the first edge of the fourth panel to the third edge of the second panel, by displacing the fourth panel and/or the second panel; and connecting a second edge of the fourth panel to a third edge of the first panel and connecting the first edge of the fourth panel to the third edge of the second panel by pivoting the fourth panel in relation to the third edge of the first panel, so that the third angle between the fourth main plane the second main plane is reduced to 90° and the fourth main plane is parallel to the third main plane.

According to an aspect the method comprises arranging a fifth panel, with a fifth main plane, perpendicular to the third and/or fourth main plane and with a fourth angle in relation to the first main plane; connecting a first edge of the fifth panel to a fourth edge of the first panel, by displacing the fifth panel and/or the first panel; and connecting a second edge of the first edge of the fifth panel to a third edge of the third panel and/or connecting a third edge of the fifth panel to a third edge of the fourth panel by pivoting the fifth panel in relation to the first main plane so that the fourth angle is reduced to 90° and the fifth main plane is parallel to the second main plane.

According to an aspect the method comprises connecting the first edge of a first panel to the first edge of the second panel by displacing the first panel relative the second panel and pivoting the second panel in relation to the first main plane so that the first angle is reduced to 90°.

According to an aspect the set of panels comprises at least five panels, wherein each connecting step comprises linearly displacing of one of said five panels.

According to an aspect each linear displacement is executed in a direction parallel to the first main plane.

According to an aspect least one connecting comprises displacing an outer part of a flexible tongue of a locking device into a tongue groove for locking an edge and an adjacent edge together.

According to an aspect at least one connecting comprises displacing an inner part of the flexible tongue in an insertion groove for locking the edge and the adjacent edge together.

According to an aspect at least one edge comprises an edge groove for locking an edge and an adjacent edge together.

According to an aspect said at least one edge groove comprises a recess, such as a bevel, at the outer edge for enabling said connecting by linear displacing and/or pivoting.

According to an aspect the first angle is more than 90°, or in the range of more than 90° to about 120°, or in the range of more than 90° to about 100°, before said pivoting of the second panel.

According to an aspect the second angle is more than 90 °, or in the range of more than 90° to about 120°, or in the range of more than 90° to about 100°, before said pivoting of the third panel. According to an aspect the third angle is more than 90°, or in the range of more than 90° to about 120°, or in the range of the range of more than 90° to about 100°, before said pivoting of the fourth panel.

According to an aspect the fourth angle (d) is more than 90°, or in the range of more than 90° to about 120°, or in the range of the range of more than 90° to about 100°, before said pivoting of the fifth panel 5.

According to an aspect the method comprises a step of arranging one of the first panel or the second panel at a mounting surface and fixating a relative position between the first or second panel and the mounting surface.

According to an aspect the fixating comprises creating a vacuum between the first or second panel and the mounting surface.

According to an aspect the fixating comprises pressing the first or second panel towards the mounting surface by the vacuum.

According to an aspect the mounting surface comprises a seal for creating/defining a volume between the first or second panel and the mounting surface.

According to an aspect the method comprises a step of testing that the panels are assembled in an intended way, wherein the testing comprises pulling the fifth panel, essentially perpendicularly to the second panel, relative to the second panel in a direction away from the second panel, to test that all panels have been correctly assembled.

According to an aspect the second panel is fixated towards the mounting surface during the testing.

According to an aspect the step of connecting the first panel to the second panel comprises the step of lifting the first panel at the first edge.

According to an aspect the step of connecting the first edge of the fifth panel to the fourth edge of the first panel comprises the step of straightening out a curved part of the fourth edge of the first panel.

According to an aspect the step of straightening out comprises the step of gripping/holding the first panel at the fourth edge in a straight line. According to an aspect the step of connecting the first edge of the fifth panel to the fourth edge of the first panel comprises the step of arranging the edge groove of the fifth panel off-set in relation to the fourth edge of the first panel, arranging the fifth panel at the fourth angle in relation to the first main plane, moving/displacing the edge groove of the fifth panel towards the fourth edge of the first panel to reduce the off-set and arranging the fourth edge in the edge groove by reducing the fourth angle of the fifth panel in relation to the first main plane and moving the fifth panel towards the first panel to connect the fifth panel to the first panel.

According to an aspect at least one step of arranging, connecting, fixating, gripping and/or pulling is automated, e.g. by the use of at least one robot.

According to an aspect all steps of arranging, connecting, fixating, gripping and/or pulling are automated, e.g. by the use of at least one robot.

According to an aspect the core of the first, second, third, fourth and/or fifth 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, second, third, fourth and/or fifth panel may also be of solid wood.

The first, second, third, fourth and/or fifth panel may be provided with a decorative layer, such as a foil or a veneer, on one or more surfaces. At least some of the above identified and other objects and advantages that may be apparent from the description have been achieved by a method of assembling a set of panels in accordance with the above.

Brief description of the drawings

These and other aspects, features and advantages of which embodiments of the invention are capable of, will be apparent and elucidated from the following description of embodiments and aspects of the present invention, reference being made to the accompanying drawings, in which

FIG. 1 show a 3D view of an assembled set of panels according to an embodiment of the present invention. FIG. 2 shows a view of a n embodiment of a n assembled set of panels according to an embodiment of the present invention.

FIGS. 3A-3C show an embodiment of a method to assemble a set of panels according to an embodiment of the present invention.

FIG. 4 shows an enlargement of part of the set of FIG. 3C, with a locking device of according to an embodiment the present invention in a non-locked position.

FIGS. 5A-5B and 6A-6B show an embodiment of a method to assemble a set of panels of FIGS. 3A-3C, where the panels are in a locked position.

FIG. 7 shows an enlargement of part of the set of FIG. 6B, with a locking device according to an embodiment of the present invention in a locked position.

FIGS. 8A-8B show an embodiment of a method to assemble a set of panels according to an embodiment of the present invention.

FIG. 9 shows an enlargement of part of the view shown in Fig. 8A.

FIGS. 10A-10C show an embodiment of a method to assemble a set of panels according to an embodiment of the present invention.

FIG. 11 shows an enlargement of part of the set shown in Fig. 10A.

FIGS. 12A-12B show an embodiment of a method to assemble a set of panels according to an embodiment of the present invention.

FIG. 13 shows an enlargement of part of the set shown in Fig. 12A.

FIGS. 14A-14B show an embodiment of a method to assemble a set of panels according to an embodiment of the present invention.

FIG. 15 shows an enlargement of part of the set shown in Fig. 14A.

FIGS. 16A-16C show an embodiment of a method to assemble a set of panels according to an embodiment of the present invention.

FIG. 17 shows an enlargement of part of the set shown in Fig. 16B.

FIGS. 18A-18B show an embodiment of a method to assemble a set of panels according to an embodiment of the present invention. FIGS. 19A-19C show an embodiment of a method to assemble a set of panels according to an embodiment of the present invention.

FIGS. 20A-20B show an embodiment of a method to assemble a set of panels according to an embodiment of the present invention.

FIG. 21A shows an embodiment of a method to test an assembled product according to an embodiment of the present invention.

FIG. 21B shows an embodiment of a method to pile and grip a panel of according to an embodiment the present invention.

Detailed description

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.

The terminology used herein is for the purpose of describing particular aspects of the disclosure only, and is not intended to limit the disclosure. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise.

In the drawings and specification, there have been disclosed exemplary aspects of the disclosure. Flowever, many variations and modifications can be made to these aspects without substantially departing from the principles of the present disclosure. Thus, the disclosure should be regarded as illustrative rather than restrictive, and not as being limited to the particular aspects discussed above. Accordingly, although specific terms are employed, they are used in a generic and descriptive sense only and not for purposes of limitation, for example, definition of dimensions such as width or breadth or height or length or diameter depends on how exemplary aspects are depicted, hence, if depicted differently, a shown width or diameter in one depiction is a length or thickness in another depiction.

It should be noted that the word "comprising" does not necessarily exclude the presence of other elements or steps than those listed and the words "a" or "an" preceding an element do not exclude the presence of a plurality of such elements. It should further be noted that a ny reference signs do not limit the scope of the claims, that the example aspects may be implemented at least in part by means of both hardware and software, and that several "means", "units" or "devices" may be represented by the same item of hardware.

The different aspects, alternatives and embodiments of the invention disclosed herein can be combined with one or more of the other aspects, alternatives and embodiments described herein. Two or more aspects can be combined.

Embodiments of the invention are shown in FIGS 1-21B, including a method of assembling a set of panels. The set of panels may be panels of a furniture that are connected perpendicular, or essentially perpendicular, to each other, i.e. with a main surface of a panel perpendicular to a main surface of an adjacent panel.

The method comprises connecting a first edge of a first panel 1, with a first main plane, to a first edge of a second panel 2, with a second main plane, where the first main plane is arranged with a first angle y in relation to the second main plane. The method comprises arranging a third panel 3 with a third main plane perpendicular to the first main plane, arranging a first edge of the third panel 3 at a second edge of the second panel 2 and arranging the third main plane with a second angle a in relation to the second main plane; connecting the first edge of the third panel 3 to the second edge of the second 2 panel, by displacing the third panel 3 and/or the second panel 2; and connecting a second edge of the third panel 3 to a second edge of the first panel 1 and connecting the first edge of the third panel 3 to the second edge of the second panel 2 by pivoting the third panel 3 in relation to the second main plane, so that the second angle a between the third main plane and the second main plane is reduced to 90°. The step of connecting the first panel 1 to the second panel 2 may comprise the step of lifting the first panel 1 at the first edge.

FIGS. 3A, 3B, 3C and 4 show how the first panel 1 and second panel 2 are being arranged and connected to each other, the first main plane having a first angle y in relation to the second main plane, where the first angle y is more than 90° or in the range of more than 90° to about 120°, or in the range of more than 90° to about 100°, before pivoting of the second panel 2 in relation to the first main plane.

FIGS 3A and 3B show an embodiment comprising gripping the first panel 1 at the first edge by a force preferably by a gripping device 52. The force may be obtained by creating a vacuum. The gripping device 52 may be displaced and controlled by a robot (not shown). The vacuum creating the force may be in the range of 40 to -90 kPa, preferably - 60 to -70 kPa.

The force created by the vacuum may be in the range of 100 to 500 N, preferably 200 to 300 N. The gripping device 52 or another gripping device may be used during the assembling of further panels of the set panels to obtain the assembled product. The gripping device 52 and the another gripping device may be functionally identical and/or essentially identical.

The force may be applied adjacent the first edge. This may increase the control of the edge and any curved part may be partly or completely straightened out. For example, the curved part may have an outermost surface that is from 0.4 to 100 mm, or 0.6 to 10 mm, out of line from the primary surface of the panel, and may be straightened out by 60% to 100% or 80% to 100% or 95% to 100% of the amount out of the line. The curved part may be straightened out such that the outermost surface goes from being more than 0.4 mm out of line to less than 0.4 mm out of line, or more than 1 mm out of line to less than 1 mm out of line. The force may be applied along the first edge or essentially along the entire first edge. A force may be applied by the gripping device 52 in a similar or the same way, at or along and/or adjacent the edge which is displaced and connected during the assembling of further panels of the set panels to obtain the assembled product. FIGS. 5A, 5B, 6A, 6B and 7 show the first 1 and second 2 panel in an assembled state, when the first panel 1 and the second panel 2 have been arranged and connected to each other and the first angle g has been reduced to 90°after pivoting of the second panel 2 in relation to the first main plane. FIGS. 10A-10C and 11 show how the third panel 3 is being arranged with a third main plane perpendicular to the first main plane, the first edge of the third panel 3 at a second edge of the second panel 2, the third main plane having a second angle a in relation to the second main plane. The first edge of the third panel 3 is connected to the second edge of the second panel by displacing the third panel 3 and/or the second panel 2. The second angle a is more than 90°, or in the range of more than 90° to about 120°, or in the range of more than 90° to about 100°, before pivoting the third panel 3 in relation to the second main plane to reduce the second angle a to 90°.

FIGS. 8A-8B and 9 show the first 1, second 2 and third 3 panel in an assembled state, i.e. arranged and connected to each other and the second angle a reduced to 90°. A fourth panel 4, with a fourth main plane, may be arranged perpendicular to the first main plane, a first edge of the fourth panel 4 arranged at a third edge of the second panel 2 and the fourth main plane arranged with a third angle b in relation to the second main plane. The first edge of the fourth panel 4 may then be connected to the third edge of the second 2 panel, by displacing the fourth panel 4 and/or the second panel 2; and a second edge of the fourth panel 4 connected to a third edge of the first panel 1 and the first edge of the fourth panel 4 connected to the third edge of the second 2 panel by pivoting the fourth panel 4 in relation to the third edge of the first panel 1, so that the third angle b between the fourth main plane the second main plane is reduced to 90° and the fourth main plane is parallel to the third main plane. FIGS. 14A-14B and FIG. 15 show how the fourth panel 4 is being arranged, with a third angle b between the fourth main plane and the second main plane, being connected to the second panel 2 by displacing the fourth 4 and/or the second 2 panel and connected to the first panel 1 and to the second panel 2 by pivoting the fourth panel 4 in relation to the third edge of the first panel 1, so that the third angle b between the fourth main plane and the second main plane is reduced to 90°. The third angle b is preferably more than 90°, or in the range of more than 90° to about 120°, or in the range of the range of more than 90° to about 100°, before pivoting of the fourth panel 4.

FIGS. 12A-12B and FIG. 13 shows an assembled state, where the fourth panel 4 has been arranged and connected to the first 1 and second 2 panel, and the third angle b between the fourth main plane and the second main plane has been reduced to 90°.

The method for assembling of panels according to an embodiment of the present invention may further comprise arranging a fifth panel 5, with a fifth main plane, perpendicular to the third and/or fourth main plane and with a fourth angle d in relation to the first main plane; connecting a first edge of the fifth panel 5 to a fourth edge of the first panel 1, by displacing the fifth panel 5 and/or the first panel 1; and connecting a second edge of the fifth panel 5 to a third edge of the third panel 3 and/or connecting a third edge of the fifth panel 5 to a third edge of the fourth panel 4 by pivoting the fifth panel 5 in relation to the first main plane so that the fourth angle d is reduced to 90° and the fifth main plane is parallel to the second main plane. FIGS. 16A-16C and FIG. 17 show how the fifth panel 5 is being arranged with a fifth main plane, and with a fourth angle d in relation to the first main plane, connected to the first panel 1 by displacing the fifth panel 5 and/or the first panel 1, connected to the third panel 3 and/or the fourth panel 4 by pivoting the fifth panel 5 in relation to the first main plane, and the fourth angle d reduced to 90° so that the fifth main plane becomes parallel to the second main plane. The fourth angle d is preferably more than 90°, or in the range of more than 90° to about 120°, or in the range of the range of more than 90° to about 100°, before pivoting of the fifth panel 5.

FIG 16A shows a front view of the set of panels during assembling of the fifth panel 5, FIG 16B show a cross cut at the line 0-0 indicated in FIG 16A and FIG 16C shows the set of panels during assembling of the fifth panel 5 in a 3D-view.

FIGS 16B and 16C show an embodiment comprising gripping the fifth panel 5 by a gripping device 52. The gripping device may grip the fifth panel at or adjacent and/or along the first edge, at the second edge and at the third edge. The gripping device 52 may create a vacuum to grip the fifth panel 5. The gripping device 52 may be displaced and controlled by a robot (not shown). The embodiment may comprise gripping the first 1 panel at the fourth edge by a force preferably by another gripping device 52'. The force may be applied adjacent the fourth edge. This may increase the control of the edge and any curved part of the edge may be straighten out. The force may be applied along the fourth edge or essentially along the entire fourth edge.

When connecting the first edge of the fifth panel 5 to the fourth edge of the first panel 1, the fourth edge of the first panel 1 may have a curved shape, which makes the connecting step more difficult. The method of the present invention may therefore, in one aspect, comprise a step of straightening out the curved part of the fourth edge of the first panel 1. The step of straightening out may comprise gripping/holding the first panel 1 at the fourth edge in a straight line as shown in FIG 16C.

FIG. 17 shows an enlargement of part of the set shown in Fig. 16B. The fifth main plane of the fifth panel 5 is arranged at a fourth angle d in relation to the first main plane of the first panel 1. The first panel 1 is arranged in an edge groove 40 of the fourth panel 4. The edge groove 40 of the fifth panel 5 is positioned at the fourth edge of the first panel 1. The edge groove 40 of the fifth panel may comprise a flexible tongue 10 arranged in an insertion groove 20.

FIGS. 18A and 18B shows an assembled state, where the fifth panel 5 has been arranged and connected to the first 1, third 3 and fourth 4 panel, and the fourth angle d has been reduced to 90°. FIG 18B shows a top view of the assembled set of panels and FIG 18A shows a crosscut at the line indicated by N-N in FIG18B.

The first edge of the first panel 1 may be connected to the first edge of the second panel 2 by displacing the first panel 1 relative the second panel 2 and pivoting the second panel in relation to the first main plane so that the first angle (y) is reduced to 90°. Each step of connecting the panels may comprise linearly displacing of one of the panels. Each step of linearly displacing may be executed in a direction parallel to the first main plane.

The panels to be assembled in accordance with the embodiments as described above may comprise a locking device comprising a flexible tongue 10 arranged in an insertion groove 20 on an edge of a panel. An outer part of the flexible tongue 10 may be displaced into a tongue groove 30 of another panel, for locking the edge of one panel and the adjacent edge of another panel together, and an inner part of the flexible tongue 10 may be displaced in the insertion groove 20 when locking the edges of the panels together. FIGS. 4, 7, 9, 11, 13, 15, 17, and 19A-20B show panels with edges comprising a flexible tongue 10 in an insertion groove 20, where the flexible tongue 10 may cooperate with the tongue groove 30 of another panel for locking of the panel and the adjacent panel together.

The panels according to an embodiment of the present invention may comprise and edge groove 40 for locking of an edge of one panel together with an adjacent edge of another panel. The edge groove 40 may further comprise a recess 41, such as a bevel, at the outer edge. The recess 41 enables easy connecting the edge of one panel together with an edge of an adjacent panel by linear displacing and/or pivoting.

FIGS. 4, 11, 15, 19A-19C and 20A show the edge groove 40 and recess 41 when the panels are in a non-locked position while FIGS. 7, 9, 13 and 20B show the edge groove 40 and recess 41 when the panels are in a locked position.

FIGS. 19A-19C relate to the step of connecting the fifth panel 5. The step of connecting the first edge of the fifth panel 5 to the fourth edge of the first panel 1 may comprise arranging the edge groove 40 of the fifth panel 5 in a position that is off-set in relation to a correct position the fourth edge of the first panel 1.

The FIGS. 19A-19C illustrate three different positions of the fourth edge of the first panel 1. The left position PI is a back position, the middle position is the correct position P2 and the right position is a front position P3 of the fourth edge of the first panel 1. A part of the fourth edge of the first panel 1 may be positioned at the back position PI or at the front position P3 due to a bent shape of the fourth edge of the first panel 1.

The step comprises arranging the fifth panel 5 at the fourth angle d in relation to the first panel 1. The step further comprises positioning of the fifth panel 5 at a back-position B with the edge groove 40 positioned at the back position PI of the fourth edge of the first panel 1 as shown in FIG 19A. A part of the of the fourth edge of the first panel 1 may be positioned in the edge groove 40. The fifth panel 5 is displaced in a first direction D1 to a front position F with the edge groove 40 positioned at the front position P3 of the fourth edge of the first panel 1 as shown in FIG 19B. The fifth panel 5 is displaced in a third direction D3 such that a greater part of the fourth edge of the first panel 1 is positioned in the edge groove 40. The fifth panel 5 is thereafter moved back in a second direction D2 to a position in which the edge groove 40 is at the correct position P2 of the fourth edge of the first panel 1. .

This step may comprise:

• positioning of the fifth panel 5 at a back-position B with the edge groove 40 positioned at a back position PI of the fourth edge of the first panel 1 preferably with part of the of the fourth edge of the first panel 1 positioned in the edge groove 40

• displacing the fifth panel 5 in a first direction D1 to a front position F with the edge groove 40 positioned at a front position P3 of the fourth edge of the first panel 1

• displacing the fifth panel 5 in a third direction D3 such that a greater part of the fourth edge of the first panel 1 is positioned in the edge groove 40, and

• displacing the fifth panel 5 in a second direction D2, which is opposite to the first direction, to a position in which the edge groove 40 is at a correct position P2 of the fourth edge of the first panel 1.

Furthermore, the fourth edge may be arranged in the edge groove 40 by reducing the fourth angle d of the fifth panel 5 in relation to the first main plane and the fifth panel 5 is moved towards the first panel 1 in the third direction D3 to connect the fifth panel 5 to the first panel 1, as illustrated in detail in FIGS. 20A-20B. When assembling the panels according to an embodiment of the present invention, the method may comprise a step where one of the first panel 1 or the second panel 2 is arranged at a mounting surface 51, and the relative position between the first 1 or second 2 panel and the mounting surface 51 is fixated, making the assembly easier. The step of fixating may comprise creating a vacuum by a fixture 50 between the first 1 or second 2 panel and the mounting surface 51, where the first 1 or second 2 panel may be pressed towards the mounting surface by the vacuum. The mounting surface 51 may comprise a seal for creating/defining a volume between the first 1 or second 2 panel and the mounting surface 51.

The gripping and/or pulling of one or more of the first, the second, the third, the fourth or the fifth panel includes creating a vacuum, preferably by a gripping device 52.

An embodiment of a method to test that the panels according to an embodiment of the present invention have been assembled in the way they are intended to be assembled is shown in FIG 21A. The assembled product may be positioned on a mounting surface 51 which may be a surface of a fixture 50. The fifth panel 5 may be pulled by force F', essentially perpendicularly to the second panel 2, relative the second panel 2 in a direction away from the second panel 2. If all panels remain assembled after such testing, this indicates that the panels have been correctly assembled. If all panels, however, do not remain assembled after such testing, this indicates that the panels have not been assembled in the intended way. During the testing, the second panel 2 may be fixated by a force F" towards the mounting surface 51. The forces F', F" may be in the range of 100 to 500 N, preferably 200 to 300 N.

One or more of the first, the second, the third, the fourth or the fifth panel may be stored in a pile before assembling. FIG 21B shows an embodiment comprising piling of two of said first panel 1, . The panels may be positioned on a piling fixture 55. The method may comprise gripping an upper and/or outer panel of said first panel 1 in the pile by a gripping device 52 at the first edge of the first panel 1, displacing the first panel towards the second panel and connect the first edge of the first panel 1 to the first edge of a second panel 2.

At least one step of arranging, connecting, fixating, gripping and/or pulling, or alternatively, all steps of arranging, connecting, fixating, gripping and/or pulling, according to according to an embodiment the present invention may be automated, e.g. by the use of at least one robot.

The first 1, second 2, third 3, fourth 4 and/or fifth 5 panel are preferably panels for a furniture product. The first panel 1 may be a back piece of a bookshelf or a wardrobe and the second 2, third 3, fourth 4 and fifth 5 panel may be a board of the frame, and may be a part of a frame of a furniture product.

The core of the first 1, second 2, third 3, fourth 4 and/or fifth 5 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 1, second 2, third 3, fourth 4 and/or fifth 5 panel may also be of solid wood.

The first 1, second 2, third 3, fourth 4 and/or fifth 5 panel may be provided with a decorative layer, such as a foil or a veneer, on one or more surfaces. According to an aspect the set of panels are resilient panels. The resilient panels may comprise a core comprising thermoplastic material. The thermoplastic material may be foamed.

The thermoplastic material may comprise polyvinyl chloride (PVC), polyester, polypropylene (PP), polyethylene (PE), polystyrene (PS), polyurethane (PU), polyethylene terephthalate (PET), polyacrylate, methacrylate, polycarbonate, polyvinyl butyral, poly butylene terephthalate, or a combination thereof. The core may be formed of several layers.

The panels described above may comprise a decorative layer, such as a decorative foil comprising a thermoplastic material. The thermoplastic material of the decorative layer may be or comprise polyvinyl chloride (PVC), polyester, polypropylene (PP), polyethylene (PE), polystyrene (PS), polyurethane (PU), polyethylene terephthalate (PET), polyacrylate, methacrylate, polycarbonate, polyvinyl butyral, polybutylene terephthalate, or a combination thereof. The decorative foil is preferably printed, for example by direct printing, rotogravure, or digital printing. According to an aspect the decorative layer may comprise melamine, a high pressure laminate (HPL) or a veneer.

The panels described above may comprise a wear layer such as a film or foil. The wear layer may comprise thermoplastic material. The thermoplastic material may be polyvinyl chloride (PVC), polyester, polypropylene (PP), polyethylene (PE), polystyrene (PS), polyurethane (PU), polyethylene terephthalate (PET), polyacrylate, methacrylate, polycarbonate, polyvinyl butyral, polybutylene terephthalate, or a combination thereof. The panels described above may comprise a wood base core, such as HDF, MDF, plywood, particleboard, OSB or Masonite.

Further numbered embodiments of the invention are listed below.

1. A method of assembling a set of panels, preferably by a robot, to obtain an assembled product, such as a furniture component or a furniture, such as a drawer, a cupboard, bookshelves, a wardrobe, a kitchen fixture, or a box for storing or transporting, comprising connecting a first edge of a first panel 1, with a first main plane, to a first edge of a second panel 2, with a second main plane, the first main plane is arranged with a first angle y in relation to the second main plane, the method comprising: arranging a third panel 3 with a third main plane perpendicular to the first main plane, arranging a first edge of the third panel 3 at a second edge of the second panel 2 and arranging the third main plane with a second angle a in relation to the second main plane; connecting the first edge of the third panel 3 to the second edge of the second panel 2, by displacing the third panel 3 and/or the second panel 2; and connecting a second edge of the third panel 3 to a second edge of the first panel l and connecting the first edge of the third panel 3 to the second edge of the second 2 panel by pivoting the third panel 3 in relation to the second main plane, so that the second angle a between the third main plane and the second main plane is reduced to 90°.

2. The method as described in embodiment 1, comprising arranging a fourth panel 4, with a fourth main plane, perpendicular to the first main plane, arranging a first edge of the fourth panel 4 at a third edge of the second panel 2 and arranging the fourth main plane with a third angle b in relation to the second main plane; and connecting the first edge of the fourth panel 4 to the third edge of the second 2 panel, by displacing the fourth panel 4 and/or the second panel 2; and connecting a second edge of the fourth panel 4 to a third edge of the first panel 1 and connecting the first edge of the fourth panel 4 to the third edge of the second 2 panel by pivoting the fourth panel 4 in relation to the third edge of the first panel 1, so that the third angle b between the fourth main plane and the second main plane is reduced to 90° and the fourth main plane is parallel to the third main plane.

3. The method as described in embodiment 1 or 2, comprising arranging a fifth panel 5, with a fifth main plane, perpendicular to the third and/or fourth main plane and with a fourth angle d in relation to the first main plane; connecting a first edge of the fifth panel 5 to a fourth edge of the first panel 1, by displacing the fifth panel 5 and/or the first panel 1; and connecting a second edge of the fifth panel 5 to a third edge of the third panel 3 and/or connecting a third edge of the fifth panel 5 to a third edge of the fourth panel 4 by pivoting the fifth panel 5 in relation to the first main plane so that the fourth angle d is reduced to 90° and the fifth main plane is parallel to the second main plane.

4. The method as described in any one of the previous embodiments, comprising connecting the first edge of the first panel 1 to the first edge of the second panel 2 by displacing the first panel 1 relative the second panel 2 and pivoting the second panel 2 in relation to the first main plane so that the first angle y is reduced to 90°.

5. The method as described in any one of the previous embodiments, wherein the set of panels comprises at least five panels, wherein each connecting step comprises linearly displacing of one of said five panels.

6. The method as described in any one of the previous embodiments, wherein each linear displacement is executed in a direction parallel to the first main plane.

7. The method as described in a ny one of the previous embodiments, wherein at least one connecting comprises displacing an outer pa rt of a flexible tongue 10 of a locking device into a tongue groove 30 for locking an edge and an adjacent edge together.

8. The method as described embodiment 7, wherein at least one connecting comprises displacing an inner part of the flexible tongue 10 i n an insertion groove 20 for locking the edge and the adjacent edge together. 9. The method as described in any one of the previous embodiments, wherein at least one edge comprises an edge groove 40 for locking an edge and an adjacent edge together.

10. The method as described in embodiment 9, wherein said at least one edge groove 40 comprises a recess 41, such as a bevel, at the outer edge for enabling said connecting by linear displacing and/or pivoting.

11. The method as described in any one of embodiments 4-10, wherein the first angle y is more than 90°, or in the range of more than 90° to about 120°, or in the range of more than 90° to about 100°, before said pivoting of the second panel 2. 12. The method as described in any one of the previous embodiments, wherein the second angle a is more than 90 °, or in the range of more than 90° to about 120°, or in the range of more than 90° to about 100°, before said pivoting of the third panel 3.

13. The method as described in any one of embodiments 2-12, wherein the third angle b is more than 90°, or in the range of more than 90° to about 120°, or in the range of the range of more than 90° to about 100°, before said pivoting of the fourth panel 4.

14. The method as described in any one of embodiments 3-13, wherein the fourth angle d is more than 90°, or in the range of more than 90° to about 120°, or in the range of the range of more than 90° to about 100°, before said pivoting of the fifth panel 5.

15. The method as described in any one of the previous embodiments, comprising a step of arranging one of the first panel 1 or the second panel 2 at a mounting surface 51 and fixating a relative position between the first 1 or second 2 panel and the mounting surface 51.

16. The method as described in embodiment 15, wherein the fixating comprises creating a vacuum between the first 1 or second 2 panel and the mounting surface 51. 17. The method as described in embodiment 15 or 16, wherein the fixating comprises pressing the first 1 or second 2 panel towards the mounting surface 51 by the vacuum. 18. The method as described in any one of embodiments 15 to 17, wherein the mounting surface 51 comprises a seal for creating/defining a volume between the first 1 or second 2 panel and the mounting surface 51.

19. The method as described in any one of embodiments 3 to 18, comprising a step of testing that the panels are assembled in an intended way, wherein the testing comprises pulling the fifth panel 5, essentially perpendicularly to the second panel, 2 relative to the second panel 2 in a direction away from the second panel 2, to test that all panels have been correctly assembled.

20. The method as described in embodiment 19, wherein the second panel 2 is fixated towards the mounting surface 51 during the testing.

21. The method as described in any one of the previous embodiments, wherein the step of connecting the first panel 1 to the second panel 2 comprises the step of lifting the first panel 1 at the first edge.

22. The method as described in any one of embodiments 3 to 21, wherein the step of connecting the first edge of the fifth panel 5 to the fourth edge of the first panel 1 comprises the step of straightening out a curved part of the fourth edge of the first panel 1.

23. The method as described in embodiment 22, wherein the step of straightening out comprises the step of gripping/holding the first panel 1 at the fourth edge in a straight line.

24. The method as described in any one of embodiments 3 to 23, wherein the step of connecting the first edge of the fifth panel 5 to the fourth edge of the first panel 1 comprises the step of arranging the edge groove 40 of the fifth panel 5 off-set in relation to the fourth edge of the first panel 1, arranging the fifth panel 5 at the fourth angle d in relation to the first main plane, moving/displacing the edge groove 40 of the fifth panel 5 towards the fourth edge of the first panel 1 to reduce the off-set and arranging the fourth edge in the edge groove 40 by reducing the fourth angle d of the fifth panel 5 in relation to the first main plane and moving the fifth panel 5 towards the first panel 1 to connect the fifth panel 5 to the first panel 1. 25. The method as described in any one of embodiments 3 to 23, wherein the step of connecting the first edge of the fifth panel 5 to the fourth edge of the first panel 1 comprises

• positioning of the fifth panel 5 at a back-position B with the edge groove 40 positioned at a back position PI of the fourth edge of the first panel 1 preferably with part of the of the fourth edge of the first panel 1 positioned in the edge groove 40

• displacing the fifth panel 5 in a first direction D1 to a front position F with the edge groove 40 positioned at a front position P3 of the fourth edge of the first panel 1

• displacing the fifth panel 5 in a third direction D3 such that a greater part of the fourth edge of the first panel 1 is positioned in the edge groove 40, and

• displacing the fifth panel 5 in a second direction D2, which is opposite to the first direction, to a position in which the edge groove 40 is at a correct position P2 of the fourth edge of the first panel 1.

26. The method as described in embodiments 25, wherein the method comprises displacing the fifth panel 5 in a third direction D3 such that a greater part of the fourth edge of the first panel 1 is positioned in the

27. The method as described in any one of the previous embodiments, wherein at least one step of arranging, connecting, fixating, gripping and/or pulling is automated, e.g. by the use of at least one robot.

28. The method as described in any one of the previous embodiments, where all steps of arranging, connecting, fixating, gripping and/or pulling are automated, e.g. by the use of at least one robot which may comprise a gripping device 52. 29. The method as described in any one of the previous embodiments, wherein the gripping and/or pulling of one or more of the first, the second, the third, the fourth or the fifth panel includes creating a vacuum, preferably by a gripping device 52.

The different aspects, embodiments and alternatives described above could be combined with one or more of the other described aspects, embodiments and alternatives.