Dismountable piece of furniture comprising at least one panel (1, 2) and a removable insert of the connector type, introduced into at least one cut (4 to 8) of said at least one panel (1, 2) for mounting the piece of furniture, the at least one cut (4 to 8) being located on at least one edge of the at least one panel (1, 2), the at least one cut (4 to 8) comprising two main faces (11, 12) facing each other and a secondary face facing an opening of the at least one cut (4 to 8), the removable insert of the connector-type, comprising a body with two opposing tongues (27, 28) designed to be introduced into the two longitudinal grooves of the insert further comprising an orifice for receiving a pin, and a cover pivotally mounted relative to the body between an open position in which the pin can be introduced into the removable insert of the connector-type and the removable insert of the connector-type can be introduced into said at least one cut (4 to 8), and a closed position in which the pin is locked in the removable insert of the connector-type and the cover is inserted into the notch of said at least one cut (4 to 8) to hold the removable insert of the connector-type, characterized in that the cover is mounted for rotation about a rotation shaft which connects the body to the cover, the rotation shaft defining an axis of rotation extending in a direction of insertion of the pin into the orifice, the rotation shaft being distinct from the pin, in that each main face (11, 12) comprises a longitudinal groove extending between the at least one edge and the secondary face for receiving the removable insert of the connector-type, each main face (11, 12) comprising a notch perpendicular to the longitudinal groove for holding the removable insert of the connector-type in the at least one cut (4 to 8), and in that the cover comprises a first plate mounted perpendicularly to the inner face of the cover and perpendicularly to the direction of insertion of the pin into the orifice, the first plate defining a main through-hole for receiving the pin when the cover is in the open position, and a secondary through-hole opening into the main through-hole of the plate to block the pin when the cover is in the closed position. the at least one cut (4 to 8) being located on at least one edge of the at least one panel (1, 2), the at least one cut (4 to 8) comprising two main faces (11, 12) facing each other and a secondary face facing an opening of the at least one cut (4 to 8), the removable insert of the connector-type, comprising a body with two opposing tongues (27, 28) designed to be introduced into the two longitudinal grooves of the insert further comprising an orifice for receiving a pin, and a cover pivotally mounted relative to the body between an open position in which the pin can be introduced into the removable insert of the connector-type and the removable insert of the connector-type can be introduced into said at least one cut (4 to 8), and a closed position in which the pin is locked in the removable insert of the connector-type and the cover is inserted into the notch of said at least one cut (4 to 8) to hold the removable insert of the connector-type, characterized in that the cover is mounted for rotation about a rotation shaft which connects the body to the cover, the rotation shaft defining an axis of rotation extending in a direction of insertion of the pin into the orifice, the rotation shaft being distinct from the pin, in that each main face (11, 12) comprises a longitudinal groove extending between the at least one edge and the secondary face for receiving the removable insert of the connector-type, each main face (11, 12) comprising a notch perpendicular to the longitudinal groove for holding the removable insert of the connector-type in the at least one cut (4 to 8), and in that the cover comprises a first plate mounted perpendicularly to the inner face of the cover and perpendicularly to the direction of insertion of the pin into the orifice, the first plate defining a main through-hole for receiving the pin when the cover is in the open position, and a secondary through-hole opening into the main through-hole of the plate to block the pin when the cover is in the closed position.