| 摘要 |
PROBLEM TO BE SOLVED: To solve problems of a winder of a net, cloth, and slats or the like in a winding type screen door, winding type eaves, and a shutter or the like, in which a winding face of the net, cloth, and slats or the like and a mechanism applying rotating force have been separately concepted, therefore the device itself is enlarged and hardly made compact, the winding type screen door generates a gap between the net and a rail due to the slack of the net, it is unstable and causes the ingress of insects and snakes or the like, thus gap prevention becomes a problem. SOLUTION: A spiral plate spring is fitted to a winding shaft of the net of the screen door, cloth of eaves, and the slats of the shutter or the like coaxially with the net for the screen door, the cloth for the eaves, and the slats for the shutter. The net, cloth, and slats or the like are wound together with the plate spring by the rotating force of the plate spring. The plate springs are fitted to both ends of the winding shaft of the winding type screen door, the gap caused by the slack at both ends of the net is protected by the plate springs for gap prevention, and the infiltration of insects and snakes or the like can be prevented.
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