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Pneumatic tire

A technology for pneumatic tires and tires, applied to the reinforcement layers of pneumatic tires, tire parts, vehicle parts, etc., can solve the problems of deterioration of tire driving stability, deterioration of transponder communication, interference with transponders, etc., to improve driving. Stability, resistance to metal interference, and the effect of ensuring communication

Pending Publication Date: 2022-07-15
YOKOHAMA RUBBER CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the case of embedding the transponder in the tire, for example, when the transponder is arranged between the carcass layer and the bead filler, the carcass thread in the carcass layer is disturbed, and the driving stability of the tire deterioration
In addition, depending on the end position of the turn-up portion of the carcass ply, the distance between the transponder and the end of the turn-up portion of the carcass ply may become extremely small, and the tire may be damaged starting from the transponder.
Furthermore, when the transponder is arranged near a metal tire component (for example, a bead core, etc.), there is a problem that the tire component interferes with the transponder, and the communication performance of the transponder deteriorates.

Method used

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  • Pneumatic tire
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Examples

Experimental program
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Effect test

Embodiment

[0047] The following tires of Comparative Examples 1 to 5 and Examples 1 to 18 were produced. The tire size was 265 / 40ZR20, and the tires were provided with a tread portion extending in the tire circumferential direction to form an annular shape, and a pair of sidewall portions arranged on both sides of the tread portion. and a pair of bead portions arranged on the inner side in the tire radial direction of these sidewall portions, a bead filler is arranged on the outer periphery of the bead core of each bead portion, and a carcass is mounted between the pair of bead portions In a pneumatic tire in which a plurality of belt layers are arranged on the outer peripheral side of the carcass layer in the tread portion, and in a pneumatic tire in which the carcass layer has a structure in which the carcass layer is rolled up around the bead core from the inner side of the tire to the outer side, the belt layer is embedded along the tire. Circumferentially extending transponder, posit...

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Abstract

The present application provides a pneumatic tire capable of ensuring the communication of a transponder and improving the driving stability and durability of the tire. In a pneumatic tire in which a carcass layer (4) has a structure in which the carcass layer (4) is rolled up around a bead core (5) from the inside to the outside of the tire, the end (4e) of a rolled-up part (4B) of the carcass layer (4) is disposed between a main body part (4A) of the carcass layer (4) and a belt layer (7), and a transponder (20) extending in the circumferential direction of the tire is embedded between the rolled-up part (4B) of the carcass layer (4) and a rubber layer. The rubber layer is disposed on the outer side of the carcass layer (4) in the sidewall portion, and the transponder (20) is disposed between a position (P1) 15 mm outward in the tire radial direction from the upper end (5e) of the bead core (5) and a position (P2) 5 mm inward in the tire radial direction from the tip (7e) of the belt layer (7).

Description

technical field [0001] The present invention relates to a pneumatic tire in which a transponder is embedded, and more particularly, to a pneumatic tire capable of ensuring the communication performance of the transponder and improving the driving stability and durability of the tire. Background technique [0002] In a pneumatic tire, it is proposed to embed an RFID tag (transponder) in the tire (for example, refer to Patent Document 1). When the transponder is embedded in the tire, for example, when the transponder is arranged between the carcass layer and the bead filler, the carcass line in the carcass layer is disturbed, and the driving stability of the tire is problematic. deterioration. In addition, depending on the position of the end of the rolled portion of the carcass layer, the distance between the transponder and the end of the rolled portion of the carcass layer may become extremely small, and the tire may be damaged starting from the transponder. Furthermore, ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60C19/00B60C9/08
CPCB60C19/00B60C15/06B60C13/00B60C15/0045B60C23/0447B60C23/0452B60C23/0493B60C2019/004
Inventor 成濑雅公长桥祐辉
Owner YOKOHAMA RUBBER CO LTD
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