| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a coupling device for an illumination unit which is superior in workability at the time of installation, can shorten installation time, and easy in maintenance and can realize reduction in construction cost and running cost, and the illumination unit using the same, and a system ceiling. <P>SOLUTION: In the coupling device, a second contact receiving portion 52 is provided near a hook 21b of a hook mechanism installed on one of adjoining illumination units 10, and a first contact receiving portion 51 is provided near a pin 31 of a pin mechanism 3 installed in the other illumination unit 10, and when the hook 21b is engaged with the pin 31 and the adjoining illumination units 10 are coupled and fixed, a first contact part 41 and the first contact receiving portion 51 are connected, and a second contact part 42 and the second contact receiving portion 52 are connected, thereby, the first contact receiving portion 51 and the second contact receiving portion 52 are electrically connected through a hook member 21. <P>COPYRIGHT: (C)2010,JPO&INPIT |
