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Pneumatic tire

A pneumatic tire, tire circumferential technology, applied in heavy tires, off-road vehicle tires, tire parts and other directions, can solve the problem of easy stone embedded in the concave part

Inactive Publication Date: 2020-01-03
TOYO TIRE & RUBBER CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, there is a problem that stones are easily embedded in the concave portion.

Method used

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  • Pneumatic tire
  • Pneumatic tire
  • Pneumatic tire

Examples

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Embodiment Construction

[0028] Embodiments of the present invention will be described below with reference to the drawings. In addition, the following description is merely an illustration in nature, and does not intend to limit the present invention, its application, or its use.

[0029] figure 1 It is a schematic diagram of a meridian half section of a pneumatic tire 1 (hereinafter referred to as tire 1 ) of the present embodiment. This tire 1 includes: a tread portion 2 in contact with the road surface, a sidewall portion 3 extending inward in the tire radial direction from the tread portion 2 , and a tire extending inward in the tire radial direction from the sidewall portion 3 and mounted on an unillustrated rim. Bead part 4.

[0030] figure 2 yes figure 1 A partially developed view of the tread portion 2 shown. A plurality of (here, three) main grooves 5 extending in the tire circumferential direction CD are formed in the tread portion 2 . One in the center is the central main groove 6 ,...

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Abstract

Effectively preventing stone catch even when closed slits are formed in a shoulder rib. A pneumatic tire includes a plurality of main grooves (5) each extending in a tire circumferential direction, and a shoulder rib (14) formed by a shoulder main groove (7) included in the main grooves (5) in an outer part in a tire width direction. The shoulder rib (14) includes a closed slit (16) that communicates with the shoulder main groove (7) and ends in the shoulder rib (14). The shoulder main groove (7) includes a protrusion (19) that extends into the closed slit (15).

Description

technical field [0001] The present invention relates to a pneumatic tire. Background technique [0002] Conventionally, there is known a pneumatic tire in which stone trap preventing protrusions are provided at intersections between circumferential grooves and lateral grooves (for example, refer to Patent Document 1). [0003] In the aforementioned pneumatic tire, in order to improve the traction performance, the shoulder rib is formed with closed grooves from the side of the shoulder main groove. Therefore, dimples that expand compared to other portions are formed at the shoulder main grooves and the closed cut grooves. Therefore, there is a problem that stones are easily embedded in the concave portion. [0004] prior art literature [0005] patent documents [0006] Patent Document 1: Japanese Patent Laid-Open No. Heisei 3-67706 Contents of the invention [0007] (1) Technical problems to be solved [0008] A technical problem of the present invention is to provid...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60C11/04B60C11/13
CPCB60C11/04B60C11/13B60C11/01B60C2200/14B60C11/0306B60C11/047B60C2200/06B60C13/02B60C11/12B60C11/1353
Inventor 藤冈刚史
Owner TOYO TIRE & RUBBER CO LTD