A guiding element (1) for mosquito nets (A) and movable screens in general comprising a fixed upright (B) and a movable upright (C) between which a mosquito net/screen element (D) is fixed. The element (1) comprises a series of contiguous modular units (2, 3) that are mutually interconnected by means of a flexible coupling lamina (4) that is rigidly coupled to the end units (5, 6) of the series. A first unit (2) comprises side walls (7) that have a lower end face that is shorter than the upper end face and delimit a central cavity (8); the side walls (7) are mutually coupled by a connecting portion (9) that is planar in an upward region and is provided with a seat (10) for the slidable accommodation of the flexible lamina (4). A second unit (3) comprises side walls (11) that have a lower end face that is longer than the upper end face; the side walls (11) are mutually coupled by a tab (12) that is planar in an upward region and is provided with a recess (13) for the slidable accommodation of the flexible lamina (4). The tab (12) comprises respective protrusions (14) at its ends that can be accommodated within the central cavities (8) delimited between the side walls (7) of first contiguous units (2).

An element (1 ) for moving mosquito nets (2), curtains and the like, of the roller type comprising a supporting frame for a sheet (3) that can be installed at an opening in an element of the type of a wall and the like. The frame comprises a fixed box (4), which is coupled to one edge of the sheet (3) and is associated stably with a corresponding edge of the opening, and a movable box (5), which contains at least partially the element (1), which is fixed at the opposite end to the sheet (3) and can translate along respective lower and upper guiding means (6, 7) on command, along a direction that is substantially perpendicular to the fixed box (4), for transition from a first configuration, in which the sheet (3) is substantially gathered, to a second configuration, in which the sheet (3) is extended so as to close the opening, and vice versa, the lower guiding means (6) comprising a track (6) that is constituted by a plurality of mutually articulated segments that have a first end (8), which is coupled to a first component selected between the base of the fixed box (4) and the lower head (5a) of the movable box (5), and a second end (9), which can slide within an internal seat of a second component selected between the lower head (5a) of the movable box (5) and the base of the fixed box (4). The upper guiding means (7) comprise a flexible belt (7) that has a first end (10) coupled to a third component, selected between the top of the fixed box (4) and the top of the movable box (5), and a second end ( 1 1), which can slide within a seat that is internal to either the lower head (5a) of the movable box (5) or the fixed box (4), and is coupled rigidly to the second sliding end (9) of the track (6) downstream of adapted guiding means (12) that are internal to the installation box (4, 5), elastic means (13a, 13b, 13c, 13d) being provided to force the second sliding end (9) of the track (6) toward the bottom of the installation box (4, 5), with consequent traction of the sheet (3) in the second configuration, wherein the sheet (3) is extended so as to close the opening.

Tensioning system (1) for curtains (10) comprising a length of cloth (11) slidably attached to the rails of uprights (12a, 12b) of a frame, further comprising first magnetic means (2a, 2b) coupled to the side edges (11a, 11b) of the length of cloth (11) and second magnetic means (3a, 3b) coupled to the rails of uprights (12a, 12b). The first magnetic means (2a, 2b) comprise a plurality of metal cylinders (2aa, 2ba) alternated to plastic cylinders (2ab, 2bb).

A mosquito net (1) comprising a fixed frame (2), intended to be installed in a respective through opening of an element such as a wall and the like, and a fine-mesh net (3), associated with at least one respective guiding bar (4) that is integral with the fixed frame (2) and is intended, in at least one of its configurations, to block the passage delimited by the frame (2); the net (3) is constituted by a weave of filaments (3a, 3b) of which at least one part is made of polymeric material; at least one end portion (5) of the fine-mesh net (3), intended for coupling with the guiding bar (4), is folded onto itself, fixing a strip (6) that is contiguous to its free end to the region of the net that faces it and is proximate thereto, forming a pocket (7) in which the opening is parallel to the end edge of the net (3); the pocket (7) accommodates slidingly the guiding bar (4), sliding thereon during the operations for moving the mosquito net (1); the at least one guiding bar (4) has a smooth outer surface, for enhanced sliding properties