SCREEN DEVICE

To provide a screen device which prevents adjacent sections of a wire that is wound on a winding drum from being entangled with each other.SOLUTION: A screen device includes a screen 3 for opening/closing a building opening, a take-up roller 4 for taking up the screen, a movable bar for operating the opening/closing of the screen, a take-up drum 40 mounted on a drum shaft 29 disposed coaxially with the take-up roller 4, a wire 30 connecting the take-up drum 40 and the movable bar, and a coil spring 34 disposed inside the take-up roller 4, having one end and the other end connected to the take-up roller 4 and the drum shaft 29, and transmitting a torsion urging force to the take-up roller 4 and the drum shaft 29 as a rotational force in the direction in which the screen 3 and the wire 30 are taken up, wherein the take-up drum 40 has a truncated cone shape and has a large diameter portion 41a that is a winding start end of the wire 30 and a small diameter portion 41b that is a winding end of the wire, and a spiral fitting groove 45 into which the wound wire is fitted is formed on the outer periphery of the take-up drum 40 so as to connect the winding start end and the winding end.SELECTED DRAWING: Figure 5 【課題】巻取ドラムに巻き取られたワイヤ同士が絡まり合うのを防止するスクリーン装置を提供する。【解決手段】建物開口部を開閉するスクリーン３と、スクリーンを巻き取る巻取ローラ４と、スクリーンを開閉操作する可動桟と、巻取ローラ４と同軸位置に配設されたドラム軸２９に取り付けられた巻取ドラム４０と、巻取ドラム４０と可動桟とを結ぶワイヤ３０と、巻取ローラ４の内部に配設されて一端及び他端が巻取ローラ４及びドラム軸２９に連結され、捻り付勢力を巻取ローラ４及びドラム軸２９にスクリーン３及びワイヤ３０を巻き取る方向の回転力として伝達するコイルばね３４とを有し、巻取ドラム４０は円錐台状をなしていて、ワイヤ３０の巻始め端である大径部４１ａと、ワイヤ巻の巻終り端である小径部４１ｂとを有し、巻取ドラム４０の外周に、巻き取ったワイヤが嵌合する螺旋状の嵌合溝４５が、巻始め端と前記巻終わり端とを結ぶように形成されている。【選択図】図５