Cable bead for pneumatic tire and pneumatic tire having the same
AssigneeKumho Tire Co., Inc.
InventorsByung Chul PARK, Woo Young KIM
Life of this patent
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Abstract
The present disclosure relates to a cable bead for a pneumatic tire which constitutes a bead part of a pneumatic tire, improves rubber permeability by restricting a ratio between a diameter of a cable and a pitch of an outer wire, and improves durability of a pneumatic tire by improving rubber adhesive properties through cobalt coating on a surface of the outer wire, and a pneumatic tire having the same, and the cable bead for a pneumatic tire is characterized in that the diameter D of the cable and a pitch P of the outer wire 20 satisfy a relationship formula, P/D=25 to 45, and further characterized in that the surface of the outer wire 20 is coated with cobalt after wire drawing.
Claims10
A cable bead for a pneumatic tire, which is applied to a bead part of the pneumatic tire, formed by twisting and winding one or more outer wires 20 around a core wire 10 and has a cable including the outer wires 20 and the core wire 10, wherein a diameter D of the cable and a pitch P of the outer wire 20 satisfy a relationship formula, P/D=25 to 45.
Dependencies are inferred from the claim text.