| 摘要 |
PROBLEM TO BE SOLVED: To provide an inexpensive window screen for an entrance door for preventing intrusion of a mosquito and a suspicious person.SOLUTION: In a window screen for an entrance door, the longitudinally slender quadrangular window screen uses an aluminum and plastic resin-like raw material installed in a half-open state of still applying a crime prevention chain to an opening door type entrance door, and an attachment shaft is shaped on the upper-lower ends of a longitudinal frame of the window screen, and a window screen fitting base is installed on the outside of a vertical frame on the opening-closing side of the door fitting frame, and a fitting bearing is provided, and the attachment shaft is fitted in this fitting bearing, and the window screen freely rotates, and eaves are provided for blocking up an upper clearance generated by opening of the door, and mohair is provided in the eaves, and an extensible strut pole is erected on the indoor side, and even if the window screen fitting base is installed on this strut pole, the similar effect is provided, and even if a casing such as rolling around a net is installed on the indoor side of the vertical frame on the opening-closing side of the door fitting frame, the similar effect is provided.SELECTED DRAWING: Figure 1 |
