Illumination device

Claim 1

An illumination device, comprising a support rail adapted to be secured in, on, or at a distance from a securing face and open towards one side defining a receiving channel, said receiving channel receiving inside thereof on both sides a conduit rail carrier having therein a plurality of electrical conduit rails, said conduit rails being accessible from the inside of said receiving chamber and disposed in planes in pairs, mirrorsymmetrically to a longitudinal center plane arranged from an insert side to a securing side of said support rail, and in superposition, a terminal box having a set-off head part insertable into said receiving channel of said support rail and carrying lighting units, said terminal box being equipped with a plurality of spring tongues constituting holding tongues and contact tongues and with spring-biased grounding pins in said head part cooperating with a separate grounding rail disposed on said support rail, said spring tongues being disposed in superposed planes, and being switchable selectively into an engaging and contact position, respectively, or into an inoperative position, each of said conduit rails having a flat rectangular cross section, said support rails including holding nose recesses, said conduit rail carriers formed each as a multi-tooth comb profile embedded approximately over the total width of the cross-section into said support rail, said conduit rail carriers being retained in said holding nose recesses of said support rail as independent structural units with said conduit rails therein, in each of said conduit rail carriers said conduit rails constituting each a pole conduit and a zero conduit of a current circuit of each conduit rail carrier being individually and independently switchable and/or controllable from each other, said contact tongue of said terminal box including a pair of zero conduit tongues cooperating with said zero conduit in both of said conduit rail carriers and correspondingly disposed on said terminal box, and including a single pole contact tongue disposed corresponding to the position of said pole conduit, said pole contact tongue cooperating in one insert position of said terminal box with a pole conduit of one current circuit of one of said conduit rail carriers on one side of said receiving channel of said support rail, and said pole contact tongue, in another insert position of said terminal box, in which the latter is insertable turned about 180* into said receiving channel relative to said one insert position, cooperating with the pole conduit of the other current circuit of the other of said conduit rail carriers on the other side of said receiving channel of said support rail, said terminal box having in each insert position one of said spring biased grounding pins performing a grounding connection with said separate grounding rail on said support rail, said grounding pins being disposed on set-off steps respectively formed on said terminal box on both sides adjacent said head part, one of said grounding pins on one of said set off steps in each insert position of said terminal box always cooperating on a bottom side of said support rail in a contacting manner with said grounding rail, the latter disposed insulatingly in a longitudinal channel formed in said bottom side of said support rail, while the other of said grounding pin on the opposite side set-off step being free from said grounding rail and being pressed against the pressure of a biasing spring acting therein in a pin recess formed in the corresponding set-off step of said terminal box into said pin recess, and support rail securing means being arranged on the upper side of said support rail for a direct securing of said support rail with support rail securers and hook stays for an indirect securing of said support rail with profiled suspension rails, and said securing means and said hook stays defining planes on a common level.