JPH0373390U - - Google Patents

Description

[Brief explanation of the drawing]

Fig. 1 is an explanatory diagram of one embodiment of this invention, Fig. 2 is an enlarged elevational view of the main part, Fig. 3 is an enlarged explanatory diagram of the flexible connection part, Fig. 4 is an exploded explanatory diagram of the component parts, Figure 5 is an explanatory diagram of an example of a drawing for manufacturing.
a, b... Indicates the length of the slat plate in the winding direction.

Claims (1)

[Scope of Claim for Utility Model Registration] In a winding shutter in which horizontally long slat plates are flexibly connected one after another to form a partition door, and the winding is wound around the winding shaft when the door is opened, the winding is carried out on the circumference of the winding shaft. When taken, the number of slat plates in each winding layer is the same from the innermost layer to the outermost layer, and the slat plates of each layer are parallel to each other on each position that equally divides the circumferential surface of the winding shaft in the circumferential direction. The series of slat plates constituting the shutter are dimensioned so that the length in the winding direction increases stepwise for each fixed number of slat plates, starting from the one closest to the winding shaft. Winding shutter.