1) “ARRANGEMENT INTRODUCED IN WIPER BLADE”, secured to an arm (2) of the wiper, wherein said blade (1) acts on the surface of a windshield (3), characterized in that said blade (1) has a blade body (6) formed as a single piece by welding, bonding, fitting or coextrusion of two different profiled materials, resulting in a single body, where the profile of said blade body (6) consists in an upper support (4), made of flexible material, and a lower support (5), made of semi-rigid material;
- the upper support (4) of the blade body (6) has, in its upper portion, a symmetric spoiler (16), made of concave curved elements (17,18), joined together by an upper vertex (19) having a rounded profile, the interior of said symmetric spoiler (16) configuring a chamber (20);
- the upper support (4) has a mounting channel (8), passing lengthwise throughout the length of the blade body (6), being preferably rectangular in shape, inside of which the metal vertebra (7) is inserted, also having preferably rectangular and flat profile and shape, said upper support (4) supporting and accommodating a metal vertebra (7) in its mounting channel (8), throughout the length, also following its curvature under any loading condition on the blade (1);
- the lower support (5) has a lower mounting channel (12), passing lengthwise throughout the length of the blade body (6), being preferably rectangular in shape and further provided with a longitudinal rectangular opening (13) extending throughout the blade body (6), in which a rubber element (9) is inserted lengthwise through the rectangular section (14), so that the rectangular upper section (15) of said element (9) is inserted in the lower mounting channel (12), supporting said element (9) together with the blade body (6);
- the lower support (5) supports the complete length of the rubber element (9) and also follows the curvature of the metal vertebra (7) under any loading condition on the blade (1);
- the blade (1) and the arm (2) are joined together through a sequential central support (10), made of metallic or plastic material, and having a mounting channel (28), passing lengthwise throughout the length of the central support (10), being preferably rectangular in shape, inside of which a metal vertebra (7) is inserted and also generally locked in its central region by means of a plastic pin or riveting;
- the region of the lower base of the support (10) has a passage channel (29) of the rubber element (9), passing lengthwise throughout the length of the central support (10), being preferably rectangular in shape and further provided with a longitudinal rectangular opening (30) extending throughout the central support (10), in which the rubber element (9) is inserted through the rectangular section (14), so that the upper section (15) of said element (9) is inserted into the passage channel (29), so as to support the profile of the rubber element (9);
- by using said sequential central support (10), the profiles of the blade body (6) are mounted by means of the two ends of the metal vertebra (7), after inserting and positioning said vertebra (7) in the mounting channel (28), the blade body (6) being split;
- the blade body (6) and the rubber element (9) are secured by means of tips (35) that further encase possible cutting edges of the metal vertebra (7);
- alternatively, the enclosing central support (11) may be used as an alternative to the sequential central support (10), being provided with preferably rectangular positioning guides (31), positioned perpendicularly to the plane of the metal vertebra (7) and engaging into rectangular openings (32) equally positioned in the central region of the metal vertebra (7);
- said enclosing central support (11) is mounted on the metal vertebra (7) over the blade body profile (6), having a longitudinal cutout (33) allowing communication between the central support (11) and the vertebra (7), that are locked by the abovementioned processes.