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Tire tread wear indicator and molding device therefore

A tire tread and tread technology, applied in tire tread/tread pattern, tire measurement, tire parts, etc., can solve the problem that the driver is difficult to determine the wear level of the tire, and the complexity of the tire increases

Active Publication Date: 2011-06-08
THE GOODYEAR TIRE & RUBBER CO
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  • Abstract
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Problems solved by technology

[0003] A practical problem with colored markings of the type mentioned above is that it is difficult for the driver to determine the level of wear until the tire has worn flat because the wear marking is the same color as the rest of the tread
While this provides continuous information to the consumer, the complexity of forming the tire increases due to the need to form a number of different markings that appear only after a limited amount of wear has occurred

Method used

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  • Tire tread wear indicator and molding device therefore
  • Tire tread wear indicator and molding device therefore
  • Tire tread wear indicator and molding device therefore

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Embodiment Construction

[0031] The following description is the presently contemplated best mode, or various ways of carrying out the invention, of the invention. This description is for the purpose of clarifying the general principles of the present invention and should not be construed in a limiting sense. The protection scope of the present invention is determined by the appended claims. The reference numerals shown in the drawings are the same as those used in the specification. For purposes of this application, the same reference numerals are used to refer to similar parts in the various embodiments shown in the figures. The use of substantially the same components, but with variations in position and number, can lead to alternative configurations capable of practicing the concepts of the invention.

[0032] figure 1 A portion of a tire tread is shown. The tread may include a plurality of blocks 10 defined by circumferential and lateral grooves 12 , 14 . The left hand side of the tire tread...

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Abstract

The present invention relates to a tire tread wear indicator and a molding device therefore. A tire tread for a vehicle tire is disclosed wherein the tread has at least one tread element projecting from the base of the tread and having a defined tread depth, with at least one tread element having a first hole and having a first outer cross-sectional shape that is constant for a first depth. A molding device for forming a tread wear indicator in a tread is also disclosed. The molding device includes a mold blade, the mold blade having a solid first portion having a defined depth, wherein the solid first portion has a cross-sectional shape that is constant for the defined depth.

Description

technical field [0001] The present invention relates to a wear marker for a tire tread and a molding apparatus for forming said wear marker. Background technique [0002] The use of treadwear signs is not new and is required by law in many countries. A variety of such markers are known. One such marking uses a colored device, such as colored rubber or colored fibers, under the tread for a visual indication of wear. Other types of markers use rib-type elements in the tread grooves, as shown in FIG. 9 . Problems can arise if the ribs in the tread grooves prevent drainage. Where required by law, the upper surface of the tread wear marks must be located at a height of 1.6 mm from the bottom of the groove where the wear marks are located. Some countries impose additional requirements applicable to winter tread wear markings located at a height of 4 mm from the bottom of the grooves. [0003] A practical problem with colored markings of the type mentioned above is that it is ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60C11/24B29C59/02
CPCB60C11/24B60C2011/1254B29D2030/0612B29D30/0606Y10T152/10027
Inventor A.屈尼F.P.塞韦伦斯
Owner THE GOODYEAR TIRE & RUBBER CO
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