Wiper blade of flat bar design

摘要

The invention relates to a wiper blade (10) of flat bar design composed of a wiper strip (14) comprising a wiper lip (18) connected to a head strip (22) via a tilting web (20), at least one pre-bent, elastic spring rail (46, 52, 54) acting as a supporting element, a connecting element (12) and a spoiler (32) having a flowing profile (34) and a holding profile (38), wherein the spoiler (32) includes in the flowing profile (34) thereof at least one longitudinal channel (44, 48, 50) with a spring rail (46, 52, 54), and the holding profile (38) thereof has at the longitudinal sides thereof free branches (42) opposite each other, directed inward, engaging into respective longitudinal grooves (24) of the head strip (22). According to the invention, the head strip (22) is free of spring rails, and in particular no spring rail (46, 52, 54) will contact the head strip (22).

主权项

1. A wiper blade (10) of flat bar design, comprising a wiper strip (14) having a wiping lip (18) which is connected to a head strip (22) via a tilting web (20), at least one pre-bent, elastic spring rail (46, 52, 54) serving as a supporting element, a connecting element (12) and a spoiler (32) having an approach flow profile (34) and a retaining profile (38), wherein the approach flow profile (34) of said spoiler (32) has at least one longitudinal channel (44, 48, 50) with the at least one spring rail (46, 52, 54) being disposed at least partially within the at least one longitudinal channel (44, 48, 50), and wherein longitudinal sides of the retaining profile (38) of said spoiler have inwardly directed, mutually opposite, free limbs (42) which engage in corresponding longitudinal grooves (24) of the head strip (22), characterized in that the head strip (22) is free from spring rails, wherein the wiper strip (14) has lateral support strips (28) between the tilting web (20) and the head strip (22), the head strip (22) being disposed entirely on an other side of the lateral support strips (28) relative to the wiper lip (18), wherein the retaining profile (38) is composed of a harder material than the approach flow profile (34), and wherein at least the parts forming the longitudinal grooves (24) of the head strip (22) for receiving the retaining profile (38) of the spoiler (32) are composed of a harder material than the wiping lip (18), the tilting web (20), and the lateral support strips (28).