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公开(公告)号：US20220402306A1
公开(公告)日：2022-12-22
申请号：US17756055
申请日：2020-10-13
发明人： Andreas Härtwig , Andreas Schwenke , Florian Kristen , Nico Meier , Alexander Wüst , Cord-Christian Neuber
摘要： A pneumatic vehicle tire, in particular utility 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 in particular a profile rib running along the 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 sipe (4) runs with an undulation in the direction of extent thereof, and two lateral portions (4b). The sipes (4) extend, in plan view, in an arc shape and symmetrically with respect to the centerline of the profile rib (1), and, in the lateral portions (4b) and in the central portion (4a), have a uniform undulation running in the radial direction, on which the undulation present in the extent direction of the sipes (4) is superposed only in the central portion (4a) of the sipe (4).
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公开(公告)号：US20220402310A1
公开(公告)日：2022-12-22
申请号：US17756286
申请日：2020-10-13
发明人： Andreas Schwenke , Florian Kristen , Chun Yi Yeo , Helge Rother
摘要： Commercial vehicle tire of radial design with a tread with circumferential grooves formed to a profile depth, which divide the tread into at least two profile ribs (1) running in the central region of the tread with profile blocks (2) separated from one another by transverse grooves (3) and into shoulder-side profile ribs, wherein at least one of the circumferential grooves (4) adjoining a central profile rib (1) has, in cross section, a radially outer sipe-like narrow section (6) and a channel (8) adjoining this in the interior of the tread which is configured to be wider than the sipe-like narrow section (6) and which is delimited by two channel walls (8b) and a channel bottom (8a) forming the groove bottom, and wherein this circumferential groove (4) is interrupted in its course by entry points of transverse grooves (3).
Opposite the entry points, a projection (9, 9′) is formed locally in each case on the channel wall (8b) located opposite the entry points of the transverse grooves (3).-
公开(公告)号：US20240278602A1
公开(公告)日：2024-08-22
申请号：US18687071
申请日：2021-08-27
发明人： Andreas Schwenke , Florian Kristen , Helge Rother , Chun Yi Yeo
CPC分类号： B60C11/0309 , B60C11/1218 , B60C2011/1227 , B60C2200/06
摘要： The invention relates to a commercial vehicle tire having a tread with at least one profile rib which runs in encircling fashion in a circumferential direction, is arranged laterally with respect to the tire equatorial plane and has sipes extending through it, which sipes each have sipe walls, a sipe midplane spaced apart equally from the sipe walls, a width of 0.4 mm to 2.0 mm and a maximum depth in a radial direction of at least 40% of the profile depth, wherein each sipe, at least in a portion which runs over the predominant part thereof as seen in plan view, has at least one sipe zone which is offset in relation to the radially outer sipe periphery and which runs in an extent direction of the sipe in an undulating form and in arcuate or singly serrated form in a radial direction, wherein a plane running through the point of the maximum excursion of the sipe zone has a line of intersection with the sipe midplane, which line of intersection follows the undulating form of the sipe zone.
The sipe runs in the undulating form exclusively in the sipe zone, wherein the amplitude of the line of intersection that follows the undulating form of the sipe zone decreases, in each line-of-intersection portion running over one half of a wavelength, in the direction of the tread-outside sipe end.-
公开(公告)号：US20220379664A1
公开(公告)日：2022-12-01
申请号：US17755234
申请日：2020-10-13
发明人： Helge Rother , Florian Kristen , Andreas Schwenke , Chun Yi Yeo
摘要： The invention relates to a utility vehicle tire having sidewalls (2) and having a tread (1) with shoulder-side profile ribs (3), which shoulder-side profile ribs have shoulder-side profile blocks (6) which are separated from one another by transverse channels (5) and which have in each case one flank surface (6a) running in the direction of the adjoining sidewall (2), wherein, on at least one sidewall (2), there is formed a flank guard (7′) which adjoins the shoulder-side profile blocks (6) and which is elevated in relation to the level of the sidewall (2). It is the intention for the flank guard to be designed such that the risk of crack formation is greatly reduced. This is achieved in that the flank guard (7′) is formed from a multiplicity of wedge-shaped elevations (7), wherein each wedge-shaped elevation (7) adjoins the flank surface (6a) of a shoulder-side profile block (6) and has an outer surface (7a) which, in the tire cross section, transitions without a kink into the flank surface (6a) of the profile block (6).
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