ELECTRIC ROOF LIGHT WINDOW

摘要

PROBLEM TO BE SOLVED: To reduce the number of limit switches and to reduce cost. SOLUTION: An electric roof light window is composed of an overload detection circuit 204 to detect overload generated when a sliding door is totally opened to disconnect energization to a motor M as a total open side disconnection means. Use of a limit switch in the total open side disconnection means can thus be eliminated, so the number of limit switches and cost can be reduced. Danger of breakage or short-circuitting of wiring of a total opening limit switch is eliminated. In addition, by installing the overload detection circuit 204 in a place relatively having space allowance, the structure of the installation place of the total opening limit switch can be simplified.