US 12,187,076 B2
Pneumatic tire for a vehicle
Andreas Härtwig, Hannover (DE); Andreas Schwenke, Isernhagen (DE); Florian Kristen, Burgwedel (DE); Nico Meier, Hannover (DE); Alexander Wüst, Seelze (DE); and Cord-Christian Neuber, Wunstorf (DE)
Assigned to Continental Reifen Deutschland GmbH, Hannover (DE)
Appl. No. 17/756,055
Filed by Continental Reifen Deutschland GmbH, Hannover (DE)
PCT Filed Oct. 13, 2020, PCT No. PCT/EP2020/078743
§ 371(c)(1), (2) Date May 16, 2022,
PCT Pub. No. WO2021/099032, PCT Pub. Date May 27, 2021.
Claims priority of application No. 10 2019 217 819.7 (DE), filed on Nov. 19, 2019.
Prior Publication US 2022/0402306 A1, Dec. 22, 2022
Int. Cl. B60C 11/12 (2006.01); B60C 11/03 (2006.01)
CPC B60C 11/0302 (2013.01) [B60C 11/1218 (2013.01); B60C 11/1281 (2013.01); B60C 2011/1213 (2013.01)] 17 Claims
OG exemplary drawing
 
1. A pneumatic vehicle tire having a tread which has a directional profiling with shoulder-side and middle profile ribs running in a circumferential direction, wherein at least one of the middle profile ribs (1), which is a profile rib running along a tire equator, is traversed in an axial direction by sipes (4) with a width (b1) of 0.5 mm to 1.2 mm, each of which has a central portion (4a), in which the sipes (4) run with an undulation in an extent direction thereof, and two lateral portions (4b);
wherein the sipes (4) extend, in plan view, in an arc shape and symmetrically with respect to a mid-line of the profile rib (1), and, in the lateral portions (4b) and in the central portion (4a), have a uniform undulation running in a radial direction, which is overlapped only in the central portion (4a) of the sipes (4) by the undulation that is present in the extent direction of the sipes (4),
wherein the undulation present in the extent direction of the sipes (4) is composed of two zigzag-shaped regions which, in the middle of the sipe, are connected to one another by means of a connecting portion (7) which extends in a straight line in the axial direction as seen in plan view,
wherein the sipes (4) each have a transition portion (8) to a rounded sipe base (5), in which transition portion the undulations disappear.