A modular storage system includes a unit body having a first lateral end, a second lateral end opposite the first lateral end, and an upper surface extending between the first and second lateral ends. The unit body includes a first groove formed in the upper surface at the first lateral end and a first groove connector in the first groove. The system includes a tongue piece having a first and second side. Each of the first and second sides of the tongue piece has a shape corresponding to the first groove and a tongue connector configured to releasably engage the first groove connector.

According to the invention, a connecting element (1) is provided, comprising a base plate (2), which is connected to at least a first receiving element (3) and a second receiving element (4), wherein the first receiving element (3) and the second receiving element (4) each have a first strip (7) and a second strip (8), which are each arranged substantially perpendicular to the base plate (2), wherein the first and the second strip (7,8) of the first receiving element (3) and the base plate (2) delimit a first receiving groove (9), which is designed to receive a separating element (23), and the first and the second strip (7,8) of the second receiving element (4) and the base plate (2) delimit a second receiving groove (10), which is designed to receive a separating element (23).

A table with a central extension, includes a frame, two movable trays bearing on the frame and adapted to be brought close to one another to constitute a continuous surface on their own, or to be symmetrically brought away from each other, or independently of each other to enable the set-up of one or several so-called central extension(s) between the movable trays. The edges of the movable trays and of the extension(s) include at least one tab located on a first half of the edge and a groove located on a second half of the edge, the tab having a height increasing from its distal edge up to its central portion and decreasing from its central portion up to its proximal edge, and the depth of the groove being larger than the tab height, enabling an assembly by mortise-and-tenon joint even when the trays and/or the extension are deformed.

In order to provide a connecting device which allows reliable pre-positioning without restricting too severely the freedom of movement of the components and/or articles that are to be connected together during the assembly and/or the connecting process, it is proposed that the connecting device comprise the following: a connecting element which comprises a main body that is positionable in a component; one or more spring elements for establishing a connection to a counterpart, in particular for insertion into one or more openings in a mating connecting element, wherein the one or more spring elements each comprise the following: a spring portion and/or a stabilizing portion, wherein the spring portion projects away from the main body and/or wherein the stabilizing portion extends from the spring portion in the direction of the main body.

In order to provide a spring device which is of simple construction and enables achieving high spring forces and long spring paths, it is proposed that the spring device comprises the following: a spring element which is able to be brought from an initial state into a deflected state by elastic deformation; an abutment element against which the spring element is able to abut for reaching a deflected state of the spring element, wherein at least one end of the spring element is moveable relative to the abutment element by elastic deformation of the spring element, wherein the spring element in the initial state thereof has an increasing distance from the abutment element in the direction of the end of the spring element which is moveable relative to the abutment element.

The present invention provides a construction frame comprising a front side, a back side, and a side part, wherein said construction frame further at least one receptacle in the side part. Further, a system comprising at least one construction frame according to the invention is provided. In a preferred embodiment said system comprises at least two construction frames which are connected by at least one connector, which is inserted in the at least one receptacle of each construction frame.

A table with a central extension, includes a frame, two movable trays bearing on the frame and adapted to be brought close to one another to constitute a continuous surface on their own, or to be symmetrically brought away from each other, or independently of each other to enable the set-up of one or several so-called central extension(s) between the movable trays. The edges of the movable trays and of the extension(s) include at least one tab located on a first half of the edge and a groove located on a second half of the edge, the tab having a height increasing from its distal edge up to its central portion and decreasing from its central portion up to its proximal edge, and the depth of the groove being larger than the tab height, enabling an assembly by mortise-and-tenon joint even when the trays and/or the extension are deformed.

In order to be able to fix a connecting element for furniture and/or machine parts, for example in lightweight panels, it is proposed that an adapter element be used which comprises a receiving section for receiving the connecting element and a fixing section for fixing the adapter element in particular in the lightweight board.

A modular storage system includes a unit body having a first lateral end, a second lateral end opposite the first lateral end, and an upper surface extending between the first and second lateral ends. The unit body includes a first groove formed in the upper surface at the first lateral end and a first groove connector in the first groove. The system includes a tongue piece having a first and second side. Each of the first and second sides of the tongue piece has a shape corresponding to the first groove and a tongue connector configured to releasably engage the first groove connector.

A connecting means for connecting a first component and a second component is provided, in particular for connecting furniture parts or machine parts, by means of which the components may be connected to one another simply and reliably. The connecting means includes a first connecting element which in the connected condition of the components is arranged on the first component, and a second connecting element which in the connected condition of the components is arranged on the second component, wherein, for connecting the first component and the second component, a spring element of the first connecting element is configured to come into engagement with a receiving element of the second connecting element, wherein the connecting means, in particular the first connecting element and/or the second connecting element, includes a reinforcing element for reinforcing a spring force of the spring element.