Device for selectively displaying information

Selective information display device used in advertising, composed of a self-supporting frame comprising:

• an upper magazine and a lower magazine (200a, 200b) having rolls (210a, 210b) stored therein, said rolls containing rolled up informational posters (211a, 211b), wherein each of said posters is equipped at one of its ends with an elastic return means which ensures the rolling up (arrow E) of said poster (211a, 211b) inside its roll (210a, 210b) without any external action, and on the other end with an outer extracting means (411a, 411b) allowing an opposing force (arrow E) of the return means to be counteracted, and the unrolling (arrow D) of said poster (211a, 211b) out of its roll (210a, 210b);
• at least one display window (300) allowing the display of information on said poster (211a, 211b) unrolled behind it;
• at least one unwinder (400) equipped with a pair of hooks (411a, 411b) arranged facing each other and acting as a means for hooking the outer extracting means for extracting said posters (211a, 211b) from their rolls (210a, 210b), ensures the unrolling (arrow D) of one of said posters (211a, 211b) behind said window (300) at the same time as the rolling up (arrow E) of another of said posters (211b, 211a) having just been displayed, and vice versa, CHARACTERIZED IN THAT the at least one unwinder (400) is arranged in a space between said display window (300) and said upper and said lower magazines (200a, 200b) situated at an upper end and a lower end of said frame (100), and is made of an endless strip (410) driven around an upper reversing roller and a lower reversing roller (420a, 420b) situated at said upper end and the lower end, respectively, of said self-supporting frame (100), said endless strip carrying said pair of hooks opposite each other (411a, 411b) and traveling such that:
• when the unwinder (400) is set in motion from said upper magazine (200a) toward said lower magazine (200b) on a display window (300) side, said pair of hooks (411a, 411b) travel on a portion of said endless strip (410) on a magazine side while engaging at least one of said pair of hooks (411a) opened upwardly in said means (212a) for extracting a poster (211a) of the upper magazine (200a), said pair of hooks passing around said upper reversing roller (420a) of the unwinder (400) and passing the display window (300) on the portion of said endless strip situated on a window side down to the lower reversing roller (420b) around which said pair of hooks turn in order to come in front of the lower magazine (200b);
• and when the unwinder (400) is set in motion from said lower magazine (200b) toward said upper magazine (200a) on the display window side (300), said pair of hooks (411a, 411b) travel on a section of the endless strip (410) on said magazine side, engaging at least one of said hooks (411b) open toward the bottom in the means (212b) for extracting a poster (211b) from said lower magazine (200b), passing around said lower reversing roller (420b) of said unwinder (400) and traveling pass said display window (300) on the section of the strip situated on the window side up to said upper reversing roller (420a) around which said hooks pass in order to be positioned in front of the upper magazine (200a).