A locking mechanism for detachable frames includes at least one detachable frame having at least one retaining through-hole; an edge connector having a left protrusion and a right protrusion, the left and right protrusions engaged with the retaining through-holes; and a locking retainer having a left retaining wall and a right retaining wall, the left and right retaining walls slidably coupled with the left protrusion and the right protrusion.

A system for fastening panels in a perpendicular manner is provided. The system comprises a semicircular base frame attached in a recessed manner into an edge area of a first panel, a similarly shaped semicircular top frame fastened atop the base frame, and a dial magnet assembly resident in the top frame. The system also comprises a slider mount assembly with an embedded magnet and attached proximate an edge of a second panel that receives insertion into a cavity created by the fastening of the top frame to the base frame. The slider mount assembly also receives attraction to the top frame based on a turning action of the dial magnet assembly in a first direction and binds to the fastened top frame and base frame based on the received attraction. The binding of the slider mount assembly to the fastened frames binds the two panels in a perpendicular manner.

This museum showcase comprises a load-bearing frame comprising tubular beams with quadrangular section connected together by at least one joint, and is characterized in that the joint comprises two flat and parallel plates, wherein each plate comprises a middle portion and at least two attachment wings, wherein the two attachment wings of each plate are respectively inserted in a first and a second of the tubular beams and fixed to them. In this way, the showcase can be designed and built in a particularly quick and easy manner. Both the beams and the joints can be made starting from extremely simple and cost-effective semi-finished products (tubes and plates, respectively), with elementary processes, basically simple cuts to the desired sizes.

A corner piece for mounting two profiles at an angle, the corner piece comprising at least a first and a second leg mounted mounted together at an angle to each other, wherein the first leg is arranged to be slid into a mounting channel of a first profile along the first direction and the second leg is arranged to be slid into a mounting channel of a second profile along the second direction, characterized in that at least the first leg comprises at least one protrusion extending along a height direction of the mounting channel, so that when sliding the first leg into the mounting channel of the first profile, the protrusion clamps the first leg into a predetermined position in the mounting channel of the first profile.

A bracket assembly is configured to join a first board and a second board. The bracket assembly includes an angled bracket having a first segment configured to be inserted into the first board and a second segment forming a nonzero angle with the first segment and configured to be inserted into the second board. The bracket assembly also includes a clamping bracket configured to press against a first kerf on the first board and a second kerf on the second board, and a fastener coupled to the angled bracket and extending through the clamping bracket.

An assembly includes an elongated channel member, a clip and a leg. The clip includes a hook proximate the first end of the clip, a fastener proximate the second end of the clip, and a pivot protrusion disposed between the first and second ends of the clip. The clip is attached to the first end of the elongated channel member. The leg is oriented at a first angle to the elongated channel member and adjacent the first end of the elongated channel member. The leg includes an opening. The hook of the clip is configured for insertion into the opening of the leg. Using the fastener to move the second end of the clip toward a surface of the elongated channel member causes the hook of the clip to rotate about the pivot protrusion, thereby engaging a surface of the leg. A method is described for assembling a structure.

A modular frame for seats or furnishing elements provided with a supporting surface includes a plurality of section bars that are adapted to be rigidly constrained to one another so as to define the frame of the supporting surface. The cross section of the section bars is at least partially hollow and substantially triangular and is provided with an opening configured to allow a conveniently shaped terminal part of fixing elements to be longitudinally inserted in the section bar in order to join at least two section bars.

A modular frame for seats or furnishing elements provided with a supporting surface includes a plurality of section bars that are adapted to be rigidly constrained to one another so as to define the frame of the supporting surface. The cross section of the section bars is at least partially hollow and substantially triangular and is provided with an opening configured to allow a conveniently shaped terminal part of fixing elements to be longitudinally inserted in the section bar in order to join at least two section bars.