A compact joint for connecting a first panel to a second panel of furniture and other furnishing items, positioned perpendicular to each other, includes a plurality of interconnection and blocking components for joining and firmly blocking the two panels together. The plurality of components of interconnection and blocking components lies on the same plane, which is perpendicular to the first and second panels and which contains a coupling axis between the first and second panels that travels inside the first panel. The joint also defines an actuation axis that is perpendicular to the coupling axis and lies on a plane parallel and interspaced with respect to the first panel and perpendicular with respect to the second panel.

A dovetail-type embedded connecting piece and an office desk are provided. The dovetail tenon type embedded connecting piece includes a dovetail groove and a dovetail tenon in a mortise-tenon connection with the dovetail groove. The dovetail groove includes a main plate and an auxiliary plate detachably connected with the main plate. A first clamping groove and the dovetail groove are formed by the main board and the auxiliary plate in use. The dovetail tenon includes a left side plate and a right side plate detachably connected to the left side plate, and in a use state, a second clamping groove is formed by the left side plate and the right side plate.

A joining system for use in furniture and furnishing items with a bottom and a shoulder has a front actuation axis under the bottom and includes a front joining unit and a rear joining unit positioned between the bottom and the shoulder of the furniture or furnishing item. A connection group is inserted in each front and rear joining unit and is aligned with a symmetry axis of the bottom, and a blocking group of the front and rear joining units is attached beneath the thickness of the bottom. The front joining unit provides an actuation and supporting member toward the rear joining unit, and the blocking group provides a grub screw inserted in a casing and caused to slide by way of a conical rack and pinion system, to be received in a bevel in the pin.

A barrel for a barrel joint for parts of furniture and furnishing items includes a hollow cylindrical body containing a blocking element and having at least one hole on one of its side surfaces for the passage of a tip of a tool that actuates the blocking element, the hollow cylindrical body also having at least another hole for receiving a pin of the barrel joint.

A fastener unit and related method for securing a board to a support is provided. The fastener unit includes a spacer block, a grip element extending from the spacer block and configured to fit in and engage a groove of the board, and one or more resilient compression elements extending from the spacer block. The one or more resilient compression elements can be a joist leg configured to engage a joist, or it can be vertically compressible toward a first plane that is transverse to a vertical axis of the spacer block so that portions of it can compress from an open mode to a compressed mode and fit within, then forcibly expand within the groove, thereby securing the spacer block in a position adjacent the groove to establish a gap between the board and another board. A related method of use also is provided.

A joint for use in a piece of furniture or other furnishing item with a shoulder and a shelf, stably interconnected by the joint perpendicularly to each other, is maneuvered with an actuation and blocking system. The joint includes a pin with a fixing element, which becomes at least partially inserted in holes defined in the shoulder and the shelf, the pin having a side hole for receiving a shaped stem that extends from the actuation and blocking group of the joint. The actuation and blocking group has a 90° transmission between a maneuvering point, which is accessible from the front of the furniture, and the shaped stem, which is inserted in the side hole of the pin. Reciprocal retention elements, provided between the pin and the actuation and blocking group, withhold the pin in the hole of the shelf housing the pin.

A joining and levelling system adapted for use in furniture and furnishing items having a bottom and a shoulder positionable with respect to a floor includes, in combination, a front foot unit and a rear foot unit, each having a connection group and a blocking group of a joining device for stably interconnecting the bottom and the shoulder. The connection group and the blocking group can be actuated from the front with respect to the furniture, the front and rear foot units being positioned beneath the bottom and facing the shoulder, and the bottom and the shoulder not resting on the floor. The front and rear foot units are disposed in an identical body for both the front and the rear foot units, and actuation rods of the joining device are arranged in the rear foot unit and positioned between the front and the rear foot units.

A joining and levelling system for furniture and furnishing items with a bottom and a shoulder positionable on a floor includes a front body and a rear body each having a connection group and a blocking group, adapted to stably interconnect the bottom and the shoulder, and a levelling group. The connection group, the blocking group and the levelling group can be actuated from the front of the furniture, the front body and the rear body being each positionable in lateral contact with the shoulder and beneath the bottom, actuation points of the connection group, the blocking group and the levelling group of the front and rear bodies being positionable on a horizontal plane parallel to the floor and to the bottom, adjacent to each other. A symmetry axis of the connection group coincides with or is substantially close to a center line of the front and rear bodies.

A connecting system between components of a piece of furniture, includes a pin having a base, a stem departing from said base along an insertion direction and an enlarged portion and a slot made in a second component of a piece of furniture, extending along a tightening direction transverse to the insertion direction and sized to house inside the enlarged portion of the pin, wherein the pin is insertable inside the slot along the insertion direction in correspondence with the insertion portion and is movable inside the slot, along the tightening direction, towards a tightening position. The system includes an anti-sliding device configured to prevent the sliding of the pin inside the slot when in the tightening position.

A compact joint for connecting a first panel to a second panel of furniture and other furnishing items, positioned perpendicular to each other, includes a plurality of interconnection and blocking components for joining and firmly blocking the two panels together. The plurality of components of interconnection and blocking components lies on the same plane, which is perpendicular to the first and second panels and which contains a coupling axis between the first and second panels that travels inside the first panel. The joint also defines an actuation axis that is perpendicular to the coupling axis and lies on a plane parallel and interspaced with respect to the first panel and perpendicular with respect to the second panel.