| 摘要 |
PROBLEM TO BE SOLVED: To connect a raceway with a different diameter to the arbitrary position of a junction box by forming a socket-mounting part and a raceway- mounting part integrally for accommodating at a cutout part so that the upper end face of the extension piece of the socket-mounting part is flush with the upper end face of both side plates. SOLUTION: A socket-mounting part 30 and a raceway-mounting part 40 are formed integrally by the bending machining of one metal plate that has been punched. Cutout parts 43 and 43 are provided at the upper corner part of the side of the socket-mounting part 30 of second, both side plates 40b and 40c of the raceway-mounting part 40, and extension pieces 45 and 45 being extended so that they are positioned inside by the thickness of both side plates 2b and 2c of a raceway 2 by step-bending parts 44 and 44 from the middle part in the height wise direction of the end part of the side of the raceway- mounting part 40 of the first, both side plates 30b and 30b of the socket- mounting part 30 are accommodated in the cutout parts 43 and 43 so that upper end faces 45' and 45' of the extension pieces 45 and 45 are nearly flush with upper end faces 40' and 40' of the second, both side plates 40b and 40c. |
