Abstract: A furniture unit has a plurality of mutually delimited furniture compartments, which in particular are designed as display cabinets. At least one lighting member can be installed as required in each furniture compartment. Rod elements of a predetermined length are provided to carry the electrical current and are affixed within the furniture unit. Furthermore, mountings are provided whereby the rod elements can each be completely retained within a furniture compartment. Connection elements provide an electrical connection between rod elements of different furniture compartments. The connection elements are designed as flexible conductors in some regions and may be 1:n branches (n=2, 3, etc.). The mountings are so arranged and designed that the rod elements are essentially fixed at both ends, it being possible for the connection elements to be connected at any time, as necessary to the ends of the rod elements.

Abstract: A furniture unit has a plurality of mutually delimited furniture compartments, which in particular are designed as display cabinets. At least one lighting member (21) can be installed as required in each furniture compartment. Rod elements (17.1 to 17.8) of a predetermined length are provided to carry the electrical current and are affixed within the furniture unit. Furthermore, mountings are provided whereby the rod elements (17.1 to 17.8) can each be completely retained within a furniture compartment. Connection elements (19.1 to 19.4) provide an electrical connection between rod elements of different furniture compartments. The connection elements (19.1 to 19.4) are designed as flexible conductors in some regions and may be 1:n branches (n=2, 3, etc.). The mountings are so arranged and designed that the rod elements are essentially fixed at both ends, it being possible for the connection elements to be connected at any time, as necessary, to the ends of the rod elements.

Abstract: A connecting device, in particular, for connecting two rod elements, has an expansion wedge construction that can be clamped in a tube-shaped end of the first rod element by expansion and that can be connected with the second rod element via a connecting piece. The expansion wedge construction includes an expansion mandrel and an expansion casing that can be engaged on the expansion mandrel. Expansion mandrel and expansion casing have an oval axial cross-section in such a manner that the wedge surfaces, which are formed in the area of the strong curvature between expansion casing and expansion mandrel, essentially are no smaller than the corresponding force locking surfaces that are made on an outside wall in the area of a strong curvature. Wedge-shaped wall thickenings of the casing are made in mirror-symmetry fashion on the inside of the surface area are molded-on in the mutually dialectically opposite areas with strong curvature.