A foldable supporting frame includes an upper frame and a plurality of legs disposed below the upper frame when unfolded to support the upper frame. The upper frame includes a plurality of bars, with adjacent bars in the plurality of bars coupled to each other or integrally formed with each other at their adjacent end portions. Each of the plurality of legs is coupled with a corresponding bar in the plurality of bars and independently rotatable about an axis defined by the corresponding bar. When folded, the plurality of legs is disposed in an interior defined by the upper frame.

A foldable supporting frame includes an upper frame and a plurality of legs disposed below the upper frame when unfolded to support the upper frame. The upper frame includes a plurality of bars, with adjacent bars in the plurality of bars coupled to each other or integrally formed with each other at their adjacent end portions. Each of the plurality of legs is coupled with a corresponding bar in the plurality of bars and independently rotatable about an axis defined by the corresponding bar. When folded, the plurality of legs is disposed in an interior defined by the upper frame.

A system is provided comprising a first furniture part (200) and a locking arrangement comprising a connector bracket (1) and a locking element (4). The first furniture part (200) comprises a recess (201) having an oblong shape comprising an insertion portion (203) and a locking portion (204), wherein the locking portion (204) along an inner wall comprises a groove (207). The connector bracket (1) comprises a base portion (2) having an extension adapted to extend along the first furniture part (200), and at least one protrusion (3) having a longitudinal extension extending transverse the extension of the base portion (2) and comprising a rim (7) extending transverse the longitudinal extension of the protrusion (3). The protrusion (3) is configured to be inserted into the insertion portion (203) and to be movable from the insertion portion (203) to the locking portion (204) by applying a force to the connector bracket (1) in a direction transverse to the longitudinal extension of the protrusion (3), whereby the rim (7) engages the groove (207). The locking element (4) being a flexible tongue (4) is integral with the connector bracket (1) and is configured to be inserted into the insertion portion (203), thereby preventing the protrusion (3) from being moved from the locking portion (204) to the insertion portion (203) and thereby releasing its engagement with the groove (207). The locking element (4) is configured to form a safety lock adapted for acting against a portion of an envelope surface of the protrusion (3) facing the insertion portion (203) of the recess (201). Also, a connector bracket and the use of such connector bracket is disclosed.

A set including a first element with a cylindrical shaped part, a second element having a cylindrical shaped groove with a circular opening in an outer surface of the second element, and a mechanical locking device. The mechanical locking device includes a tongue groove, a displacement groove and a flexible tongue in the displacement groove, and is configured to lock the cylindrical shaped part to the cylindrical shaped groove. The flexible tongue is configured to cooperate with the tongue groove for locking the cylindrical shaped part to the cylindrical shaped groove. The flexible tongue is configured to be reshaped and displaced in the displacement groove during locking, and spring back to a locked position. The flexible tongue is configured to exert a spring force on the tongue groove in the locked position.

A set including a first element with a cylindrical shaped part, a second element having a cylindrical shaped groove with a circular opening in an outer surface of the second element, and a mechanical locking device. The mechanical locking device includes a tongue groove, a displacement groove and a flexible tongue in the displacement groove, and is configured to lock the cylindrical shaped part to the cylindrical shaped groove. The flexible tongue is configured to cooperate with the tongue groove for locking the cylindrical shaped part to the cylindrical shaped groove. The flexible tongue is configured to be reshaped and displaced in the displacement groove during locking, and spring back to a locked position. The flexible tongue is configured to exert a spring force on the tongue groove in the locked position.

A connecting element for a mechanical joint includes a base part, and a connector part protruding from the base part. The connector part includes a protrusion portion, and a contacting portion extending from the protrusion portion to a direction of the first end of the base part such that a gap is formed between the contacting portion and the front surface of the base part and such that a bottom of the gap is formed by the protrusion portion. The contacting portion includes a front surface which is parallel to the portion of the front surface of the base part in the area of the gap and a back surface facing toward the front surface of the base part.

A connecting element for a mechanical joint includes a base part, and a connector part protruding from the base part. The connector part includes a protrusion portion, and a contacting portion extending from the protrusion portion to a direction of the first end of the base part such that a gap is formed between the contacting portion and the front surface of the base part and such that a bottom of the gap is formed by the protrusion portion. The contacting portion includes a front surface which is parallel to the portion of the front surface of the base part in the area of the gap and a back surface facing toward the front surface of the base part.

Tenon-joints-attached Frames for Aluminum Furniture has features that include the male tenon and the female tenon which once fixed together and assembled to Aluminum Furniture Frame 1 and Aluminum Furniture Frame 2 in order. Once assembled, the male tenon and the female tenon will hide inside the grooves aforementioned where the male tenon which is characterized by a wide area and a rectangular body works by being inserted into Aluminum Furniture Frame 1 to fix them together. Next to the wide area is constructed a narrow area that is characterized by being a sheet that is perpendicular to the wide area. The walls of the narrow area will have at least one extrusion that works by inserting the extrusions into the intrusions of the female tenon. The female tenon, which is characterized by a rectangular body, works by being inserted into Aluminum Furniture Frame 2 to fix them together. One position on the rectangular body will have at least one intrusion to facilitate the fitting with the extrusions from the male tenon wherein the male tenon and the female tenon will be fixed together in a vertical direction.

Tenon-joints-attached Frames for Aluminum Furniture has features that include the male tenon and the female tenon which once fixed together and assembled to Aluminum Furniture Frame 1 and Aluminum Furniture Frame 2 in order. Once assembled, the male tenon and the female tenon will hide inside the grooves aforementioned where the male tenon which is characterized by a wide area and a rectangular body works by being inserted into Aluminum Furniture Frame 1 to fix them together. Next to the wide area is constructed a narrow area that is characterized by being a sheet that is perpendicular to the wide area. The walls of the narrow area will have at least one extrusion that works by inserting the extrusions into the intrusions of the female tenon. The female tenon, which is characterized by a rectangular body, works by being inserted into Aluminum Furniture Frame 2 to fix them together. One position on the rectangular body will have at least one intrusion to facilitate the fitting with the extrusions from the male tenon wherein the male tenon and the female tenon will be fixed together in a vertical direction.

A post coupler has one or more positive post stops therein limiting extension of an end of a post section in or over the coupler beyond the stop. The stops may be freely extended tabs or stop embossments from or in the coupler flanges. Outside wrap, inside wrap and hidden post couplers are disclosed, as well as assembly methods.