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Tire tread made from multi cap compounds

一种橡胶化合物、胎面的技术，应用在轮胎胎面/胎面花纹、特殊轮胎、车辆部件等方向，能够解决轮胎湿道路性能受限、低防滑深度等问题

Active Publication Date: 2014-02-12
THE GOODYEAR TIRE & RUBBER CO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

With some tread constructions, the wet road performance of the tire may be severely limited even if the tire tread has not worn down to the legal minimum skid depth

Method used

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  • Tire tread made from multi cap compounds
  • Tire tread made from multi cap compounds
  • Tire tread made from multi cap compounds

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0028] exist figure 1 A cross-sectional view of a cured pneumatic tire tread layout 10 is shown in . Pneumatic tires may be formed from typical tire components known to those skilled in the art, such as, but not limited to, inner liner (not shown), annular beads (not shown), sidewalls (not shown), apex ( not shown), carcass (not shown) and belt assembly (not shown). The tire tread 10 has first and second shoulder blocks 14, 16 that form the shoulder region of the tire. The tire tread 10 may also include at least two ribs 18 , 20 , preferably three ribs 18 , 20 , 26 . The invention is not limited to ribs, and may alternatively be tread blocks, preferably circumferentially aligned tread blocks. Ribs 18, 26 are separated from shoulder blocks 14, 16 by grooves 19, 28, respectively. The ribs 18 , 20 , 26 are separated from one another by grooves 22 , 24 . The grooves 19, 22, 24, 28 have a defined depth D and preferably have inclined side walls 19a, 22a, 24a, 28a and flat floor...

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PUM

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Abstract

A tire tread (10) comprising one or more grooves (19, 22, 24, 28) is disclosed. The tread (10) has a radially outer surface and a non-skid tread depth as measured from the radially outer surface of the tread (10) to the radially innermost surface of the one or more grooves (19, 22, 24, 28). Furthermore, the tread (10) has a radially innermost layer (70) comprising of a base tread compound, a radially outer tread cap layer (50) and a middle tread layer (60) located between the base layer (70) and the outer tread cap layer (50). The radially outer tread cap layer (50) has a defined thickness (D) except that the radially outer tread cap layer (50) comprises at least one notched area (75, 80) wherein the radially outer tread cap layer (50) extends radially inward of the defined thickness (D). Also, a pneumatic tire comprising such a tire tread is disclosed.

Description

technical field [0001] The present invention relates to a pneumatic tire. In particular, the present invention relates to an evolved tread pattern and rubber composition that changes as the tire wears in order to maintain performance. Background technique [0002] As the tire wears, the volume of the tread decreases due to frictional contact with the road surface. As the tire wears, the volume of the grooves decreases and at the same time the grip decreases. When the groove volume is reduced, this reduces the ability of the tire to channel water away from the tire footprint, thereby reducing wet road tire performance. With some tread constructions, the wet road performance of the tire may be severely limited even if the tire tread has not worn down to the legal minimum grip depth. [0003] There is thus a need to provide a tire that has excellent wet and dry performance characteristics when new and acceptable wet and dry tire performance over its life. Contents of the i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60C11/13
CPCB60C11/005B60C1/0016B60C11/0075B60C2011/0016
Inventor M.杰罗-马佐斯M.J.Y.温德斯豪森R.雷纳德特T.格森霍夫
Owner THE GOODYEAR TIRE & RUBBER CO
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