Panels are shown, which are provided with a mechanical locking system including a separate and flexible tongue allowing connection with a snap action. An outer edge part of the separate flexible tongue includes a guiding protrusion that facilitates easy disassembly of the panels and that is deformed during locking and/or unlocking.

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.

Furniture carcass formed from panels assembled edge to edge by means of a groove (21) and loose tongue (11) assembly, a first (10) and a second panel (20) being joined by the edge of the first panel (10) hearing against the inner side (20a) of the second panel (20). The first panel (10) comprises a loose tongue (11), and the second panel (20) comprises, along the edge of its inner side (20a), a recess (21), complementary in shape to that of the edge with the bearing surface (15), a longitudinal assembly groove (21), complementary in shape to that of the tongue (11), and, beyond the groove (21), a bearing surface (25), recessed relative to the plane of its inner side (20a), for receiving the edge tearing surface (15). The assembly groove (21) has a bottom surface (22) and a small bearing surface (24) joined by a truncated concave ridge (27) and the loose tongue (11) has a complementary truncated ridge (17).

A set of panels including a first panel with a first main plane and a second panel with a second main plane. The first 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 at a junction plane, wherein the first main plane is essentially perpendicular to the second main plane and the junction plane is extending between the first main plane and the second main plane. The first edge includes an edge tongue that extends from the junction plane. The second edge includes an edge groove at the junction plane. The edge tongue is configured to cooperate with the edge groove for locking together the first and the second edges in a first direction which is perpendicular to the first main plane. The edge tongue includes a tongue groove.

A set including a first panel, a second panel and a mechanical locking device for locking the first panel to the second panel, wherein the first panel includes a first edge surface, the second panel includes 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 includes at least one rod-shaped element at the first edge surface, at least one insertion groove at the second panel surface, the rod-shaped element is configured to be inserted into the insertion groove, the rod-shaped element extends at a first angle from the first edge surface, the insertion groove extends into the second panel surface at a second angle from the second panel surface, the mechanical locking device further including at least one locking groove.

An assembled product includes at least three elements arranged in three different planes. A first element is connected perpendicular to a second element, and a third element is connected perpendicular to the second element. The assembled product includes one or more locking devices, each comprising a flexible tongue arranged in an insertion groove one of the at least three elements. The flexible tongue cooperates with a tongue groove, at an adjacent one of the at least three elements, for locking the one element and the adjacent element together. A second edge of the second element is connected to a second edge of the third element by a first of said locking devices.

A set comprising a first panel, a second panel and a mechanical locking device for locking the first panel to the second panel is disclosed. The first panel includes a first edge surface and a first panel surface and the second panel includes a second edge surface and a second panel surface. The mechanical locking device includes an insertion groove at the first edge surface, wherein the insertion groove has a first displacement surface and an opposite second displacement surface, a bottom surface and a depth direction. The insertion groove includes a flexible tongue, and an edge tongue including a tongue groove, wherein the flexible tongue is configured to cooperate with the tongue groove for locking of the first panel to the second panel, and the first and the second displacement surface of the insertion groove are converging.

Discussed herein are modular frame assemblies, and methods of forming modular frame assemblies. A modular frame assembly includes a first and second lateral frame member each comprising an elongated transverse portion including a flange portion, the transverse portion including an upper edge, a first and second side frame member each comprising a first end, a second end, and a cross panel extending therebetween, the first and second end including one or more receiving members to receive the flange portions of the first and second lateral frame members, and a top planar member having an upper surface and lower surface, the lower surface including one or a plurality of chambers to receive the upper edge of the transverse portion of the first and second lateral frame members.

A mechanical connection arrangement for panels, includes a first panel, a second panel and a mechanical locking device for locking the first panel to the second panel. A surface of the first panel and a surface of the second panel are parallel and in contact in a locked position of the first and second panels. The mechanical locking device includes at least one rod-shaped element at said surface of the first panel and at least one corresponding insertion recess at said surface of the second panel. The rod-shaped element is configured to be inserted in the insertion recess. The rod-shaped element extends at a first angle from the surface of the first panel and the insertion recess extends into the second panel at a second angle from the surface of the second panel. The difference between the first angle and the second angle is between 0.5° and 6°.

A hidden joining system with front activation for a bottom of a piece of furniture and furnishing items includes a front joining unit and a rear joining unit positioned between a bottom and a shoulder of the furniture, wherein each front and rear joining unit is attached beneath the thickness of the bottom of the furniture, wherein symmetry axes of the two front and rear joining units lie on a plane external and parallel to a center plane of the bottom and the front joining unit has a transmission element toward the rear joining unit.