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Pneumatic tire

A technology of pneumatic tires and tires, applied in pneumatic tires, reinforcement layers of pneumatic tires, special tires, etc., can solve problems such as deterioration of comfort

Inactive Publication Date: 2009-01-07
BRIDGESTONE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, in the pneumatic tire disclosed in Patent Document 2, compared with a pneumatic tire with a larger tire size, although the tire rigidity is increased to improve the steering stability, the comfort is deteriorated.

Method used

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  • Pneumatic tire
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Examples

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Embodiment Construction

[0033] Hereinafter, an example of the pneumatic tire of the present invention will be described with reference to the drawings. In addition, in the following code|symbols, the same or similar code|symbol is attached|subjected to the same or similar part. However, the drawings are schematic diagrams, and ratios of dimensions and the like are different from actual ones. Therefore, specific dimensions and the like should be determined in consideration of the following description. Furthermore, there are parts in which mutual dimensional relationships and ratios are different among the plurality of drawings.

[0034] (Structure of Pneumatic Tire)

[0035] figure 1 It is a sectional view in the tread width direction of the pneumatic tire of the present embodiment. Such as figure 1 As shown, the pneumatic tire 1 has a bead portion 3 positioned inside when mounted on a vehicle. The bead portion 3 has an inner bead core 3a, an inner bead filler 3b, and an inner bead 3c. Further...

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Abstract

A pneumatic tire according to the present invention includes bead units and a carcass layer at least. The bead units includes an inside bead core and an inside bead filler located in an inside under an equipment on a vehicle, and an outside bead core and an outside bead filler located in an outside. The carcass layer includes a main body and turnbacks. The main body extends from the inside bead core to the outside bead core. Each of the turnbacks is turned back from the inside bead core or the outside bead core to an internal side of a belt layer. Here, each edge of the turnbacks provided at a tire inner peripheral side of the belt layer is located inside from each edge of the belt layer in a tread width direction. In addition, a height of the outside bead filler is lower than a height of the inside bead filler in a cross section along the tread width direction.

Description

[0001] technology area [0002] The invention relates to a pneumatic tire, in particular to a pneumatic tire capable of improving handling stability and riding comfort. Background technique [0003] Conventionally, various solutions have been proposed for pneumatic tires to improve steering stability and riding comfort. For example, a pneumatic tire is disclosed in which steering stability is improved by making the tire shape (eg, tread pattern, sidewall) asymmetrical with respect to the tire equatorial plane (for example, refer to Patent Document 1). Also, a pneumatic tire is disclosed in which riding comfort is improved by making the tire shape symmetrical with respect to the tire equatorial plane (for example, refer to Patent Document 2). [0004] Patent Document 1: Japanese Patent Application Laid-Open No. 6-127216 (page 2-page 4, first drawing) [0005] Patent Document 2: Japanese Patent Application Publication No. 62-004609 (page 2-page 3, Figure 1) [0006] If the ti...

Claims

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Application Information

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IPC IPC(8): B60C15/06B60C3/06B60C5/00B60C9/08
CPCB60C3/06B60C15/0072B60C9/0292B60C15/0045B60C15/06Y10T152/10504Y10T152/10819
Inventor 吉野纯
Owner BRIDGESTONE CORP
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