Abstract: A screen is made to be able to be interchanged in a state in which the screen is made to be detachable from a screen attaching frame portion, a first connector is arranged at one ends extracted from the screen of screen tension members penetrating the screen at a plurality of portions in a length direction, the one end is connected to a vicinity of a free end of a slide guide frame portion, other end of a jump member extracted to a screen attaching side is arranged with a second connector, the first connector and the second connector are made to be attachable and detachable to and from each other, and the slide guide frame portion is extracted from inside of the screen attaching frame portion.

Abstract: There is provided a screen device having a pair of slide guide frames 17 and a slide bar 1 expanding and storing the slide guide frames so that screens 5A, 5B can be set up and stored by the movement of the slide bar, wherein a roller pipe 2 having a coil spring mechanism for providing a resilient force integrated therein is arranged between the slide guide frames, pivotally supporting bodies are disposed at both ends of the roller pipe so as to be capable of sliding but not to be capable of rotating with respect to the slide guide frames, one ends of two screens are fixed to the roller pipe, and the roller pipe rotates and slides in association with expansion of the slide guide frames or storage thereof into the slide bar in association with the movement of the slide bar to which the other end of one of the screens is fixed, whereby setting up of the screen by withdrawal of the same from the roller pipe and storage of the screen into the roller pipe by winding of the same on the roller pipe are enabled.

Abstract: A screen device in which a screen is provided in a contractable and expandable manner between a pair of screen installation frames, at least one of which is movable in a sliding manner, and the screen can be opened and closed by pulling it sideways, and which has upper guide frames for guiding the screen installation frames while covering their upper end sections. The screen installation frames have, at their upper end sections, fall-down prevention guide sections. The upper guide frames have, in their insides, guide rail projections which prevent, by holding the fall-down prevention guide sections, the upper end sections of the screen installation frames from coming out of the upper guide frames.