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Airless tire

A technology of airless tires and tire radius, applied in the reinforcement layer of pneumatic tires, special tires, non-pneumatic tires, etc., can solve the problems of insufficient high elasticity and low heat generation, achieve excellent steering stability performance, inhibit peeling , the effect of excellent low rolling resistance performance

Active Publication Date: 2017-10-20
SUMITOMO RUBBER IND LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

As a result, the rubber composition A does not exhibit the predetermined rubber physical properties, and there is also a problem that the excellent high elasticity and low heat generation cannot be obtained sufficiently.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0084] Trial production figure 1 , 2 Airless tires of the basic structure (equivalent to tires of tire size 145 / 70R12), and tested for handling stability, rolling resistance and durability. In Example 11, the outer reinforcing cord layer is adjacent to the inner reinforcing cord layer, and the reinforcing rubber layer is disposed radially inward of the inner reinforcing cord layer. In addition, a reinforcing rubber layer is disposed between the outer reinforcing cord layer and the inner reinforcing cord layer.

[0085] Except for the tread ring, each tire has substantially the same specifications, and the spokes are molded integrally with the tread ring and the hub using a polyurethane resin (thermosetting resin)-based casting method. The outer reinforcing cord layer and the inner reinforcing cord layer are as follows, and each tire has the same specification.

[0086]

[0087] ·Number of layers: 2 layers

[0088] Reinforcement cord: steel cord

[0089] The angle of the...

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Abstract

The invention provides an airless tire, being able to guarantee excellent operation stability and reduce rolling resistance, and improving durability at the same time. An airless tire 1 has a tread ring 2 provided with a reinforcing rubber layer 7 disposed radially inside a tread rubber layer 22 and made of a rubber compound [A] comprising: 100 parts by mass of the rubber component containing 10 to 100 % by mass of butadiene rubber; 10 to 80 parts by mass of an metal salt of an alpha beta unsaturated carboxylic acid; and a peroxide. A barrier layer 11, which restrains sulfur in an adjacent rubber compound 10 from migrating into the reinforcing rubber layer 7, is disposed between the reinforcing rubber layer 7 and the adjacent rubber compound 10.

Description

technical field [0001] The present invention relates to an airless tire that ensures excellent handling stability and reduces rolling resistance while improving durability. Background technique [0002] As an airless tire, there is known an airless tire having a structure in which a plurality of spoke plate portions arranged radially are connected between a cylindrical tread ring having a contact surface and a wheel hub fixed to the axle (refer to For example, Patent Document 1). [0003] In such an airless tire, it is advantageous to use the rubber material of a common pneumatic tire in the tread rubber layer forming the ground contact surface in the tread ring from the viewpoint of strength, durability, handling stability, grip, etc. . However, in an airless tire, a tread ring and a spoke plate portion are used instead of the filling internal pressure in a pneumatic tire to receive load and impact, so the degree of deformation is increased compared with a pneumatic tire....

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L7/00C08L9/00C08K13/02C08K3/04C08K3/06C08K3/22C08K5/47C08K5/098C08K5/14B60C1/00B60C7/00
CPCB60C1/0016B60C7/00C08K5/098C08K5/14C08L7/00B60C2001/0091B60C7/102C08L9/00C08K13/02C08K3/04C08K3/06C08K2003/2296C08K5/47B60C2009/1871B60C11/0041B60C7/18B60C2009/2247B60C2001/0075B60C11/0008Y02T10/86B60C7/146B60C1/00C08J3/24C08J2307/00C08J2409/00
Inventor 杉谷信岩村和光
Owner SUMITOMO RUBBER IND LTD