(57) Abstract (Modified) Objective Adjusting to various windows which possess unique form new decorationOffer of the fan-shaped curtain breech operating mechanism which can be done. Constitution 2 it hangs in the right flank section of triangular bay window 2 each loweringCode it lowers 8 and 8 and manipulates, each lowers under pulling of the codege position with lock unit 9 lock fixing and the lockAs it releases, the containment gold which is locked in the projection corner of the triangular bay windowWith tool as a fulcrum, each sector section which forms each curtain left and right4, 4 and each hanging section 5 and 5 in convergence direction or expansion direction openBecause closing it does, the left and right window surface of the triangular bay window with each curtain closingThe chain and it to be possible to open, the lighting tonnage from the same triangular bay windowIt can adjust optionally variably.
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