| 摘要 |
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. |
