| 摘要 |
PURPOSE: An automatic ventilation window is provided, in which the spring formed of a shape memory alloy is employed as a window open/shut member, to thereby minimize the labor and time for maintenance of the window. CONSTITUTION: An automatic ventilation window(1) comprises open/shut windows(3,3') which are connected to an open/shut spring(9) formed of a shape memory alloy and automatically opens/shuts by the indoor temperature difference. A housing(2) has an installation hole for mounting the housing to a frame of a vinyl house. The housing has insertion shaft holes(7) formed at both sides of the housing, and open/shut windows are mounted to be rotatable into the insertion shaft holes through a shaft support piece(4) having an assembly hole(5). A stop bolt of a shaft(6) is inserted into the assembly hole formed at the shaft support piece, and a return spring(10) is connected to a fixing pin(11) of the housing. The open/shut spring retracting/extending by the temperature difference is connected to the fixing pin of the housing from the opposite side of the return spring. The housing has a vinyl fixing groove(19) formed along the circumference of the top of the housing, and a fixing element is coupled into the vinyl fixing groove so as to fix a vinyl by an assembly piece.
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