Provided is a rubber-cord composite, a tire reinforcing member, and a tire using the same, which can further improve the strength and modulus of an entire belt layer without causing a problem caused by the reinforcing cord and can further improve the durability of the tire than before. Provided is a rubber-cord composite used for a spiral cord layer in a tire reinforcing member including a core cord layer 2 and a spiral cord layer 3. One or a plurality of reinforcing cords 3a are aligned in parallel and covered with rubber. The reinforcing cord includes a nonmetallic fiber. When the modulus of the reinforcing cord is A, the number of cord end counts is B, the thickness of the reinforcing cord is C, the specific gravity of the reinforcing cord is D, the number of upper twists of the reinforcing cord is E, and the total fineness of the reinforcing cord is F, a modulus X represented by X = A × B is 1,000 GPa or more, a cord interval Y represented by Y = (50 - B × C) / B is from 0.1 mm to 5 mm, and a twist coefficient Z represented by Z = tan θ = E × √ (0.125 × F / D) / 1,000 is 0.3 or less.
RUBBER CORD COMPOSITE, REINFORCING MEMBER FOR TIRES, AND TIRE USING SAME
GUMMI-KORD-VERBUNDSTOFF, VERSTÄRKUNGSELEMENT FÜR REIFEN UND REIFEN DAMIT
COMPOSITE CAOUTCHOUC-FIL, ÉLÉMENT D'ARMATURE POUR PNEUS ET PNEU L'UTILISANT
2019-11-13
Patent
Electronic Resource
English
IPC: | B60C VEHICLE TYRES , Fahrzeugreifen |
RUBBER-CORD COMPOSITE, REINFORCING MEMBER FOR TIRES, AND TIRE USING SAME
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|RUBBER-CORD COMPOSITE, REINFORCING MEMBER FOR TIRES, AND TIRE USING SAME
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|RUBBER–CORD COMPOSITE, REINFORCING MEMBER FOR TIRES, AND TIRE USING SAME
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