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Truck tire capable of improving protrusion trafficability of truck

A vehicle and tire technology, applied in vehicle parts, tire parts, reinforcement layers of pneumatic tires, etc., can solve the problems of durability limitation and inability to improve the performance of passing through protrusions.

Inactive Publication Date: 2013-12-25
HANKOOK TIRE WORLDWIDE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, changing the pattern of the tread or improving the belt layer has limitations in improving the durability against rough roads and the durability of the tire itself. Therefore, the performance of passing through protrusions cannot be improved only by improving elements.

Method used

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  • Truck tire capable of improving protrusion trafficability of truck
  • Truck tire capable of improving protrusion trafficability of truck
  • Truck tire capable of improving protrusion trafficability of truck

Examples

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Embodiment Construction

[0009] The present invention provides a tire, comprising a tread 1, tire walls on both sides of the tread 1, and bead parts at the ends of the tire walls on both sides, the tread 1, the tire walls and the bead parts use a carcass 2 as a skeleton, A plurality of belt layers 31 , 32 , 33 are formed outside the carcass 2 of the tread 1 , and a rubber sheet 4 is provided between the carcass 2 and the first belt layer 31 of the plurality of belt layers.

[0010] Preferably, the width W1 of the rubber sheet 4 is not more than 1 / 2 of the tread width W, and the rubber sheet is thick at the center and becomes thinner toward both sidewalls. The thickness 41 of the central portion of the rubber sheet is 2-5mm, and since it becomes thinner toward both sidewalls, the curvature of the upper surface of the rubber sheet 4 is 80% or less of the surface curvature of the tread. The larger the modulus of the rubber sheet 4 is, the harder it is, and the change in bending of the belt layer when pas...

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Abstract

The invention provides a truck tire capable of improving the protrusion trafficability of a truck.A rubber sheet is arranged between a belt layer and a matrix layer and the tire surface is composed of the belt layer and the matrix layer.When the truck runs through a protrusion, the bending of the belt layer is relieved by the rubber sheet, thereby reducing the damage to the tire surface due to the protrusion.

Description

technical field [0001] The present invention relates to a tire for trucks, especially a tire in which the tread portion is improved so as to improve the passing ability of protrusions. Background technique [0002] Trucks, especially self-unloading trucks and other vehicles used for work, usually have a large load on the tires, the air pressure must be high, and the conditions of use are extremely harsh. And the roads are often quite steep. Specifically, if the load is large, high air pressure is required to bear the load, and if the air pressure is high, the tension of the belt layer will increase, and when the tension increases, it will be easier to pass through protrusions or concave puddles. A large impact load is applied to the tire so that the amount of deformation of the tread portion becomes large. Deformation of the tread causes bending of the belt constituting the tread, and severe bending of the belt leads to separation of the belt, resulting in a shortened life...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B60C9/14
CPCB60C9/18B60C2009/0071B60C2009/1878
Inventor 李东奎朴铉哲
Owner HANKOOK TIRE WORLDWIDE