Motorized screen group (10) of the type comprising a first (11) and a second upright (12) parallel to each other and a screen (13) having opposite ends associated with said uprights (11, 12), at least one of said first and second upright (11, 12) being movable with respect to the other starting from a first position of mutual contact, in which said screen (13) is closed, to a second position of maximum distance, in which said screen (13) is open; means (14) for guiding said screen (13) being provided to at least one free side of said screen (13) for guiding its opening and closing in which said guiding means (14) are configured so that when the screen (13) is closed they are substantially internally housed in said first upright (11) and when the screen (13) is open they are at least partially outside said first upright (11); a motor (15) being provided for automatically opening and closing said screen group (10); characterized in that said motor (15) is connected to said guiding means (14) for automatically controlling its entry and exit movement with respect to said first upright (11).

The present invention concerns a chain guide (100) for a screen group of the type comprising a plurality of rigid elements (10) arranged one after the other, each of said rigid elements comprising two side walls (12) and a bridge portion (11) for connecting said side walls (12); said rigid elements (10) being connected together in a rotary manner by means of a pivoting coupling (14, 13) so as to progressively pass from a substantially vertical arrangement to a substantially horizontal one; wherein it is foreseen for there to be means (18, 19, 31, 32) for stopping the rotation when said rigid elements (10) have reached said horizontal arrangement; wherein both said pivoting coupling (14, 13) and said means (18, 19, 31, 32) for stopping the rotation are arranged at said bridge portion (11).

Automatic opening screen device (10) of the type comprising a first upright (11) and a second upright (12) parallel to each other and a screen (19) having opposite ends associated with said uprights (11, 12), at least one of said uprights (11, 12) being mobile with respect to the other starting from a first position of mutual contact, in which said screen (19) is closed, to a second position of maximum distance, in which said screen (19) is open; in which a weight (16) is housed in one of said uprights (11, 12), said weight (16) being mobile between a first raised position, when said screen (19) is closed and said uprights (11, 12) are in mutual contact, and a lowered position, when said screen (19) is open and said uprights (11, 12) are spaced, so that during its spontaneous fall it imparts a translatory displacement to said mobile upright (11, 12), automatically opening the screen device (10).

A device (1) for keeping an insect screen (11) that can be rolled up distended during rolling and unrolling; the device (1) is installed within a casing (10) designed to house at least one winding roller (12) on which the screen (11) is rolled up; the device (1) possesses a flexible structure (2) having fixing members (5) for guaranteeing a fixed positioning within said casing (10) and comprises at least one roller (7) rotating on a shaft of its own, which is installed on a pair of supports (6) projecting in cantilever fashion from the structure (2), and is able to turn with respect to said structure (2), which is always in physical contact with at least one portion of screen (11) that is rolled on said roller (12) as a result of the flexibility of said structure (2); the roller (7) moreover has a lateral surface that develops in a plane parallel to the surface of the screen (11); the structure (2) is flexible in a direction orthogonal to the axis of the roller (7).

Described herein is a pleated screen device constituted by a screen (10) inserted between vertical sectional elements (11 and 12), the first one (11) of which is fixed and the second one (12) can be moved manually from a position in which it is set up against the fixed sectional element (11) and the screen (10) is closed, folded up on itself, to a position in which the mobile sectional element (12) is set up against the frame of the framework for containing the device and the screen (10) is open; the mobile sectional element (12) is guided in its movements of translation through chain guide means, a top one (14) and a bottom one (15), which are able to slide in respective guides made in the frame of the framework; extending in a direction transverse to the screen (10) are cords (18 and 19), which at one end of their own are fixed to the mobile sectional element (12) and extend along the screen (10) as far as the fixed sectional element (11), where they are prolonged to form a tensioning system; one (18) of the cords, if the cords number two, or else a set of cords, if the cords number more than two, extends (18') in the fixed sectional element (11), passing through a hole thereof, downwards as far as a return roller (20) fixed to a base body (21) applied in a removable way to the fixed sectional element (11) and proceeds (18") as far as the end element (15') of the bottom guide chain (15) to which it is fixed (23); the other cord or set of cords (19) also enters with its extension (19') in the fixed sectional element (11), through another hole, and proceeds upwards as far as a second return roller (25) fixed to a top body (22), which is also applied in a removable way to the fixed sectional element (11); said extension (19') proceeds (19") as far as the end element (14') of the top guide chain (14) to which it is fixed (24).

A roller mosquito net (1), comprising a fixed sectional element (10), a mobile sectional element (11), which is arranged parallel to said fixed sectional element (10), and a screen (13), which, at one end, is wound on a roller (12) that has a first and second end and is arranged within said mobile sectional element (11), and, at its opposite end, is fixed to said fixed sectional element (10). The roller mosquito net (1) comprises, furthermore, guide elements (14,24) of the mobile sectional element (11), which consist of a plurality of bodies (30,30a), which are hinged to each other and slide inside a guide sectional element (9), which is supported by the frame of the mosquito net (1). The mosquito net (1) comprising, furthermore, support means (41,42), adapted to support the upper guide element (14), in order to avoid the formation of bends when the mosquito net (1) is stretched. The support means comprise a metal portion and a magnetic portion, one associated to the upper guide and one associated to the sectional element for mutually interacting.

A roller screen device includes a fixed sectional element (10) and a mobile sectional element (11) that is able to move parallel to the fixed sectional element inside a frame contained in which is a screen (13), the mobile sectional element (11) bearing a roller (12) inside it, wound on which is the screen (13), which, at the other end, is anchored to the fixed sectional element (10). Guide elements (14 and 24) for guiding the mobile sectional element (11) are positioned at the top and at the bottom of the screen (13) and fixed at one end to the mobile sectional element (11), whilst the other ends of the guide elements (14) slide into the fixed sectional element (10). Moreover provided is a system for tensioning the guides (14 and 24), which acts during the steps of opening and closing of the screen (13).; The tensioning system includes a thread (20), which extends starting from the end (21) of the top guide (14) that slides in the fixed sectional element (10) towards and around a bottom roller (22) and from here to the end (23) of the bottom guide (24), which slides in the fixed sectional element (10), to proceed to and around a top roller (25) and from here to the end (21) of the top guide (14) so closing to form a loop.

Described herein is a roller screen device constituted by a fixed sectional element (10) and a mobile sectional element (11) that is able to move parallel to the fixed sectional element inside a frame contained in which is a screen (13), the mobile sectional element (11) bearing a roller (12) inside it, wound on which is the screen (13), which, at the other end, is anchored to the fixed sectional element (10). Guide elements (14 and 24) for guiding the mobile sectional element (11) are positioned at the top and at the bottom of the screen (13) and fixed at one end of their own to the mobile sectional element (11), whilst the other ends of the guide elements (14) slide into the fixed sectional element (10). Moreover provided is a system for tensioning the guides (14 and 24), which acts during the steps of opening and closing of the screen (13). The tensioning system consists of a thread (20), which extends starting from the end (21) of the top guide (14) that slides in the fixed sectional element (10) towards and around a bottom roller (22) and from here to the end (23) of the bottom guide (24), which slides in the fixed sectional element (10), to proceed to and around a top roller (25) and from here to the end (21) of the top guide (14) so closing to form a loop.

La presente invenzione si riferisce al campo degli schermi per insetti ed in dettaglio 5 descrive una zanzariera pieghevole a montaggio facilitato così come il suo metodo di installazione. La zanzariera secondo l’invenzione può essere montata sia in orizzontale sia in verticale ed è 10 sprovvista di molle di arrotolamento e di mezzi di tensionamento del telo che costituisce la zanzariera vera e propria.