US 12,240,418 B2
Wiper blade, in particular for a motor vehicle
Adam Angyal, Budapest (HU); Christian Wilms, Beringen-Koersel (BE); Marcel Ekermans, Sittard (NL); Marcello Bubba, Linden (BE); Nicolaas Gotzen, Kortenberg (BE); Peter Kuypers, Tongeren (BE); Thomas Belmans, Beringen (BE); and Wim Buseyne, Hasselt (BE)
Assigned to Robert Bosch GmbH, Stuttgart (DE)
Filed by Robert Bosch GmbH, Stuttgart (DE)
Filed on Dec. 9, 2022, as Appl. No. 18/078,139.
Claims priority of application No. 102021214108.0 (DE), filed on Dec. 10, 2021.
Prior Publication US 2023/0182687 A1, Jun. 15, 2023
Int. Cl. B60S 1/38 (2006.01)
CPC B60S 1/38 (2013.01) [B60S 2001/3836 (2013.01); B60S 1/3879 (2013.01)] 17 Claims
OG exemplary drawing
 
1. A wiper blade (10) that extends along a longitudinal axis, the wiper blade (10) comprising a wiper strip (16) that is held by a fastening portion (24), the wiper strip (16) having a substantially triangular lip portion (18), wherein a cavity portion (22) is provided between the fastening portion (24) and the lip portion (18) along a perpendicular axis (S) that is perpendicular to the longitudinal axis, wherein the cavity portion (22) includes a lower wall (44) that faces the lip portion (18) and extends perpendicular to the perpendicular axis (S), wherein the lower wall (44) includes a first guide shoulder (56) for guiding the lip portion (18) and a second guide shoulder (56) for guiding the lip portion (18), wherein the first guide shoulder (56) and the second guide shoulder (56) are each grooves or indentations located along a lower surface of the lower wall (44), wherein the cavity portion (22) includes an upper wall (42) located opposite the lower wall (44) along the perpendicular axis (S), wherein the cavity portion (22) further includes side walls (46) that each extend between, and perpendicular to, the upper wall (42) and the lower wall (44), wherein the upper wall (42), the lower wall (44), and the side walls (46) define a hollow cavity, wherein the hollow cavity is fully enclosed by the upper wall (42), the lower wall (44), and the side walls (46) along an entire longitudinal length of the wiper blade (10) when viewed along the longitudinal axis, wherein a damping portion (50) is provided between the cavity portion (22) and the fastening portion (24), wherein the damping portion (50) includes wings or tabs (52) which extend from the upper wall (42) of the cavity portion-(22) and into retaining grooves (32) that are configured to receive spring rail portions (34, 36), wherein the lip portion (18) includes a first edge (60), wherein the first edge (60) of the lip portion (18) is sized and shaped and positioned relative to the first guide shoulder (56) so as to engage into the first guide shoulder (56) and contact the lower wall (44) when the lip portion (18) is tilted relative to the cavity portion (22) in a first direction, wherein the lip portion (18) includes a second edge (60), wherein the second edge (60) of the lip portion (18) is sized and shaped and positioned relative to the second guide shoulder (56) so as to engage into the second guide shoulder (56) and contact the lower wall (44) when the lip portion (18) is tilted relative to the cavity portion (22) in a second direction that is opposite the first direction, wherein the hollow cavity has a first width that extends between the side walls (46), and wherein the first guide shoulder (56) and the second guide shoulder (56) are separated by a second width that is less than the first width.