Patent ID: 7963312

Claim:
A screen apparatus, comprising: a screen having first and second end portions; first and second screen attaching frame portions which are arranged so as to be opposed to each other, at least one of said first and second screen attaching frame portions being slidingly movable, said first and second screen attaching frame portions being attached to said screen, such that said screen is capable of being contracted and developed between said first and second screen attaching frame portions; and first and second slide guide frame portions arranged at vicinities of said first and second end portions of the screen, respectively, said first and second end portions of said screen not constituting sides of said screen being attached to said first and second screen attaching frame portions, wherein each of said first and second slide guide frame portions is formed by a plurality of rigid units, each rigid unit having a pair of side wall portions arranged opposite to each other and a bridging portion connecting said pair of side wall portions, said pair of said wall portions being pivotably connected between a pair of side wall portions of an adjacent rigid unit, so that said slide guide frame portions are flexible, wherein for each slide guide frame portion of said first and second slide guide frame portions, at least one end of said slide guide frame portion constitutes a free end and is capable of being contained in and extracted from inside said second screen attaching frame portion, and when extracted from the inside of said second screen attaching frame portion in accordance with a sliding movement of said second screen attaching frame portion, an extracted portion of said slide guide frame portion maintains linearity, wherein said free ends of said first and second slide guide frame portions are connected to each other by a slide guide frame portion tension member provided at the inside of said second screen attaching frame portion, said slide guide frame portion tension member forms a loop in substantially an 8 shape, and fold back points of said slide guide frame portion tension member are arranged on a side opposed to a side of said second screen attaching frame portion attaching said screen, and wherein said screen is detachable from at least said second screen attaching frame portion, a first connector is arranged at one end of a screen tension member, said screen tension member penetrating said screen at a plurality of portions in a length direction, a first end of a jump member is connected to said free end of said second slide guide frame portion, a second connector is arranged at a second end of said jump member, said jump member being disposed at a screen attaching side of said second screen attaching frame portion, the first connector and the second connector are made so as to be attachable and detachable from each other, and when in a state of extracting the first and second slide guide frame portions from the inside of the said second screen attaching frame portion, said screen is capable of being changed.