Pneumatic vehicle tire

Patent metadata

Field	Value
Publication number	US-9902207-B2
Application number	US-201314143456-A
Country	US
Kind code	B2
Filing date	Dec 30, 2013
Priority date	Jun 28, 2011
Publication date	Feb 27, 2018
Grant date	Feb 27, 2018

Abstract

A pneumatic vehicle tire for commercial vehicles is provided wherein the wet traction properties are improved with simultaneously good rolling resistance properties. At least 120 transverse grooves are arranged in each of the central profile ribs over the entire circumference of the tire. The width (B 1 ) of the transverse grooves in the central profile ribs is maximally 1.5 mm at a distance of 3.5 mm from the profile surface, and the width of each inner circumferential groove is maximally 4 mm at a distance of 3.5 mm from the profile surface.

First claim

What is claimed is:

1. A pneumatic vehicle tire for utility vehicles defining a profile surface, a circumferential direction and a tire circumference, the pneumatic vehicle tire comprising:
a tread defining a first shoulder groove and a second shoulder groove and first, second, and third inner circumferential grooves;
a first side wall and a second side wall;
four central profile ribs;
a first shoulder rib and a second shoulder rib;
said profile ribs and said shoulder ribs being aligned approximately in the circumferential direction of the tire circumference;
said first shoulder groove and second shoulder groove being in the form of a zigzag pattern, each deviating in alternating directions in the radial direction to create the zigzag pattern;
transverse grooves arranged over the entire tire circumference in each of said first shoulder rib and said second shoulder rib, wherein every other transverse groove comprises one or more chamfers extending into either the first shoulder groove or the second shoulder grove, whichever is nearest;
from 120 to 140 transverse grooves arranged over the entire tire circumference in each of said central profile ribs, the length of each being at least 80% of the width of the central profile rib;
said transverse grooves each having a width (B 1 ) of at most 0.5 mm at a distance of 3.5 mm from the profile surface in each of said central profile ribs;
each of said inner circumferential grooves having a width of at most 4 mm at a distance of 3.5 mm from the profile surface;
each of said shoulder grooves having a width of at most 3 mm;
said transverse grooves are arranged in an arrow shaped manner with an arrow tip;
said second circumferential groove is a middle inner circumferential groove; and,
said arrow tip is formed by said middle inner circumferential groove.

Assignees

• Continental Reifen Deutschland Gmbh

Inventors

• Kleffmann Jens
• Bartke Joerg
• Pokutta Paskaleva Anastassia

Classifications

• B60C11/03 Primary

  Tread patterns · CPC title

• B60C11/033

  by the void or net-to-gross ratios of the patterns · CPC title

• B60C2011/0365

  characterised by width · CPC title

• B60C2011/0372

  with particular inclination angles · CPC title

• B60C2011/036

  Narrow grooves, i.e. having a width of less than 3 mm · CPC title