Abstract A lighting device with hollow supporting ledges to be secured in, or spaced apart from a securing face, said lighting device which comprises supporting ledges defining a hollow space open in lateral direction. Conducting bars are accessible laterally and connect boxes having an upper setoff head portion and adapted for carrying lamps. The connecting boxes interchange with the supporting ledges and are equipped with a plurality of spring tongues. The spring tongues, projecting laterally in pairs from the upper setoff head portion, serve as holding tongues and the remaining tongues as contact tongues. A cam roller is transferable selectively into operative engaging positions or in an inoperative position. The cam roller is transferable into two of the operative positions. One of the operative positions leads the holding tongues into a preliminary locking position, and the other of the operative positions leads the holding tongues into their final locking position and leads simultaneously the contact tongues into their engagement position at the conducting bars.
A lighting device to be secured in, or spaced apart from a securing face, comprising: a supporting ledge comprising hollow supporting ledge parts, one of said ledge parts defining a hollow space open in lateral direction; conducting bars received in said hollow space and accessible laterally from the inside of said one ledge part, connecting boxes having an upper setoff head portion and adapted for carrying lamps, each of said connecting boxes interengaging with said supporting ledge parts and equipped with a plurality of spring tongues; said spring tongues, projecting laterally in pairs from said upper setoff head portion, serve as holding tongues and the remaining tongues as contact tongues; a cam roller on each connecting box transferable selectively into operative engaging positions or in an inoperative position; said cam roller being transferable into two of said operative positions; one of said operative positions leading said holding tongues into a preliminary locking position; and the other of said operative positions leading said holding tongues into their final locking position and leading simultaneously said contact tongues into their engagement position at said conducting bars.
Claim 2
Dependent Claim
183 words
A lighting device to be secured in, or spaced apart from a securing face, comprising: a supporting ledge comprising hollow supporting ledge parts, one of said ledge parts defining a hollow space open in lateral direction; conducting bars received in said hollow space and accessible laterally from the inside of said one ledge part, connecting boxes having an upper setoff head portion and adapted for carrying lamps, each of said connecting boxes interengaging with said supporting ledge parts and equipped with a plurality of spring tongues; said spring tongues, projecting laterally in pairs from said upper setoff head portion, serve as holding tongues and the remaining tongues as contact tongues; a cam roller on each connecting box transferable selectively into operative engaging positions or in an inoperative position; said cam roller being transferable into two of said operative positions; one of said operative positions leading said holding tongues into a preliminary locking position; and the other of said operative positions leading said holding tongues into their final locking position and leading simultaneously said contact tongues into their engagement position at said conducting bars.
Claim 3
Dependent Claim
68 words
The apparatus, as set forth in claim 1, wherein said holding tongues are angularly setoff relative to each other by arranging the latter near the outer ends of side faces of each of said connecting boxes, whereby one of said holding tongues is disposed on one side of said head portion and the other of said holding tongues Is disposed on the opposite side of said head portion.