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Heavy duty tire

一种轮胎、轮胎周向的技术，应用在重型轮胎、充气轮胎、轮胎零部件等方向，能够解决胎面胎肩部不均匀磨损、边缘部增加等问题，达到提高湿地性能、抑制不均匀磨损的效果

Inactive Publication Date: 2012-11-28
BRIDGESTONE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, if many circumferential grooves are formed on the tread shoulder, the edge portion increases
Therefore, there is a problem that the ground contact pressure is concentrated on the edge portion, and uneven wear of the tread shoulder portion is likely to occur.

Method used

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Examples

Experimental program
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Embodiment Construction

[0022] Next, embodiments of the heavy duty tire of the present invention will be described with reference to the drawings. In addition, in the description of the following drawings, the same or similar reference numerals are attached to the same or similar parts. However, it should be noted that the drawings are merely schematic representations, and ratios of dimensions and the like are different from actual ones.

[0023] Therefore, specific dimensions and the like should be determined with reference to the following description. In addition, it is needless to say that the relationship and ratio of mutual dimensions are different among the respective drawings.

[0024] In this embodiment, (1) the overall structure of the heavy-duty tire, (2) the detailed shape of the circumferential narrow grooves, (3) the detailed shape of the intersecting narrow grooves, (4) the detailed shape of the intersecting transverse grooves, (5) Modifications, (6) comparative evaluation, (7) actio...

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PUM

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Abstract

The invention provides a heavy duty tire, comprising: a shoulder rib (A1) (shoulder rib (A5)) which is provided to a tread shoulder section; a second rib (A2) (second rib (A4)) which is adjacent to the shoulder rib (A1) with a circumferential groove (110) (circumferential groove (116)) interposed therebetween and is provided further toward the tire equator side than the shoulder rib (A1); and an uneven wear absorbing rib (B1) (uneven wear absorbing rib (B2)) provided within the circumferential groove (110) and located further toward the inside in the tire radial direction than the tread surfaces of the shoulder rib (A1) and of the second rib (A2). Circumferential narrow grooves (10, 12) having a smaller width than the circumferential grooves (110, 116) are formed in the second ribs (A2, A4). Each circumferential narrow groove (10, 12) is formed in such a manner that, when the tire is mounted on the vehicle, the circumferential groove (10, 12) is located on the outer side of the tire with reference to the center of the second rib (A2, A4) in the tread width direction.

Description

technical field [0001] The invention relates to a heavy-duty tire, which comprises: shoulder ribs, which are arranged on the tread shoulders and extend along the tire circumference; central side ribs, which are adjacent to the shoulder ribs through circumferential grooves, It is arranged at a position closer to the equator line of the tire than the shoulder rib and extends along the tire circumferential direction; and an uneven wear absorbing rib is arranged in a circumferential groove and extends along the tire circumferential direction and is longer than the shoulder rib and the center side rib The tread is located on the inner side of the tire radial direction. Background technique [0002] Conventionally, in heavy-duty tires mounted on straight-line vehicles such as trucks and buses, in order to suppress the tread shoulder portion, specifically, the shoulder rib of the rib constituting the tread shoulder portion, etc. For uneven wear, there is widely used a method of pr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60C11/04B60C5/00B60C11/01B60C11/12B60C11/13
CPCB60C2011/0383B60C11/0306B60C2011/0351B60C11/04B60C11/0309B60C2011/036B60C2011/0381B60C2011/0348B60C2011/133B60C11/042B60C2011/0362B60C11/047B60C2200/06B60C2011/0374B60C2011/0386B60C2011/039B60C2011/0397B60C2011/1245
Inventor 菅沼彰
Owner BRIDGESTONE CORP
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