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Inflatable radial ply tyre for over loading

A radial tire, tire technology, applied in tire parts, tire tread/tread pattern, transportation and packaging, etc., can solve problems such as low traction, improve braking force and driving force, improve durability, and prevent peeling. Effect

Inactive Publication Date: 2009-09-09
KUMHO TIRE CO INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the above-mentioned tread pattern has similar problems to the tread pattern in which the slits K are formed as described above, and also has problems such as reduced traction when running on non-asphalt roads.

Method used

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  • Inflatable radial ply tyre for over loading
  • Inflatable radial ply tyre for over loading

Examples

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Embodiment Construction

[0026] The pattern structure of the heavy-duty pneumatic radial tire of the present invention will be described in detail below with reference to the accompanying drawings.

[0027] The tread of the pneumatic radial tire for heavy load according to the present invention has a zigzag 4-rib pattern. Here, if figure 2 As shown, "zigzag 4-rib pattern" means that it is divided by 4 pattern blocks B1, B2, B3, B4 and 3 longitudinal grooves G1, G2, G3, and the overall shape of the pattern block and the longitudinal groove is along the The circumferential direction (travel direction) of the tire forms a zigzag shape.

[0028] The longitudinal grooves G1, G2, G3 consist of a central groove G2 formed at the center of the contact surface (ie, tread) of the tire and side grooves G1, G3 formed on both sides thereof, and are repeatedly formed in a zigzag shape. In the drawings, the symbol "C" indicates the centerline of the tire in the circumferential direction.

[0029] The pattern bloc...

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PUM

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Abstract

The invention provides a pattern structure of an inflatable radial ply tyre for over loading, which can effectively prevent uneven wear such as wheel track wear generated at the edge of the pattern block in driving and prevent peeling due to heating in driving in the condition of improving the brake force and drive force but not reducing any performance so as to increase the endurance life of the tire. The invention is characterized by comprising half pattern grooves (SG1, SG2, SG3, SG4) with a step shape, which take a center pattern groove (G2) as center and are obliquely arranged with an interval corresponding to each pitch on the center blocks (B2, B3) at two sides of the center pattern groove to communicate a center pattern groove (G2) and side pattern grooves (G1, G3), wherein the center pattern groove (G2) is formed in a sawtooth shape in the center of the tire tread and the side pattern grooves (G1, G3) are formed in a sawtooth shape at two sides. The half pattern grooves (SG1, SG2) formed on the center pattern block (B2) and the half pattern groove (SG3, SG4) formed on the center pattern block (B3) are intercrossed and have different oriention. A transverse pattern groove (LG) is formed by bending an angle to the width direction of the tire tread.

Description

technical field [0001] The present invention relates to a tread structure of a heavy-duty pneumatic radial tire, in particular, to a tread structure of a heavy-duty pneumatic radial tire that can effectively suppress the formation of a tire at the edge of a tread block in a tire for overloading and long-distance travel. Wheel and rail wear and other partial wear, while improving the braking force and driving force without causing a variety of performance degradation, can prevent peeling caused by heat during driving, so as to improve the durability of the tire and form the tread. Background technique [0002] Generally, heavy-duty pneumatic radial tires commonly used in buses, trucks, etc. have a rough pattern, that is, a plurality of circles are designed on the tread that is in contact with the road surface, in order to improve driving force, braking force, and drainage in rainy weather. The rib pattern formed by the direction. However, tires with the above-mentioned rib p...

Claims

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Application Information

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IPC IPC(8): B60C11/117B60C11/13B60C11/03
Inventor 郑瑛镇林明权
Owner KUMHO TIRE CO INC
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