Patent ID: 7861447

Claim:
A lamp supporting device for an advertising sign comprising: a center frame ( 10 ), wherein two first connecting members ( 11 ) are detachably coupled by insertion to both upper and lower ends of the center frame respectively; a fixing frame ( 20 ) which fixes a lamp supporting device ( 1 ) firmly to a signboard frame ( 5 ) by being inserted to upper and the lower ends of the first connecting members ( 11 ); a second connecting member ( 30 ) which is inserted around the fixing frame ( 20 ) and bound to the first connecting member ( 11 ) while supporting a slide frame ( 50 ); a binding means ( 40 ) which binds the first and the second connecting members ( 11 , 30 ) closely together to form one integral unit; the slide frame ( 50 ) crosses the fixing frame ( 20 ) by passing through the second connection member ( 30 ); and a plurality of lamp supporters ( 60 ) which are movably fixed to the slide frame ( 50 ) so as to adjust the distance between lamps and have sockets ( 63 ) at one end thereof.