| 摘要 |
<P>PROBLEM TO BE SOLVED: To prevent looseness in connection with a lighting duct and to allow reliable contact with a linear conductor for power feed. <P>SOLUTION: A plug 10 comprises: a cylindrical plug body 11; a duct insertion part 12 provided to project at one end side of the plug body 11, inserted to the inside from an opening 34 of the lighting duct 30 and serving to establish mechanical coupling and electrical connection of the plug 10 by being rotated about a central axis by about 90°; and a fixation ring 13 screwed to an outer periphery of the plug body 11 and moving along the central axis by being rotated about a rotational axis. <P>COPYRIGHT: (C)2006,JPO&NCIPI |
