| 摘要 |
PROBLEM TO BE SOLVED: To broaden the choice of fitting poles, to simplify manufacturing processes, and to enhance the efficiency of wire connecting work by enabling one holder to be attached to poles of different outside diameters. SOLUTION: A common holder 14 serving as a principal member of a lighting system fixes a socket and a globe in place and is so formed as to be capable of being attached to two kinds of large and small cylindrical poles 5a, 5b whose ends differ in outside diameter. A large pole mounting part 16 provided on the lower end face of the common holder 14 is formed to fit and mount the large pole 5b therein, while a small pole mounting part 15 molded integrally therewith enables mounting of the small pole 5a by providing groove parts 15A, for fitting the small pole 5a therein, in a pair of projecting parts formed when the inner extended surface of the large pole mounting part 16 are partly projected toward the globe. Therefore, the choice of fitting poles can be broadened, manufacturing processes can be simplified, and the efficiency of wire connecting work can be enhanced. |
