| 摘要 |
PROBLEM TO BE SOLVED: To fit a relatively heavy luminaire without increasing the number of part items by holding hook blades of the object luminaire with hook blade receiving members at a plurality of hook blades insert openings provided at the lower face of a body fixed to the execution face into which electric wires are led, and engaging a collar-like part protrusively provided at the whole outer periphery of the lower end part, with part of the luminaire. SOLUTION: Hook blades for a luminaire 2 are inserted in wide parts of a plurality of hook blade insert openings, provided in the bottom wall of a cylindrical body 10 of a ceiling rose 1 thread-fastened to a ceiling face, and then rotated clockwise and led into narrow parts. L-shaped tip parts are hooked and held to hook blade receiving members, to which electric wires distributed in the ceiling are connected. Sliding members 9 of the luminaire 2 are locked to the upper face of a collar-like piece 11 of specified vertical thickness, protrusively provided at the lower and of the whole outer peripheral wall surface of the body 10. The sliding members 9 are provided with locking claws movable in the diametrical direction of the ceiling rose 1 between lock positions and release positions and spring for resetting the locking claws into the lock positions. The luminaire 2 is therefore held mechanically.
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