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Rounded stone ejectors

A technology for catapults, stones, in the direction of vehicle components, shipping and packaging, tire treads/tread patterns

Inactive Publication Date: 2016-09-21
BRIDGESTONE AMERICAS TIRE OPERATIONS LLC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] There is a continuing need to improve the design and construction of such stone catapults

Method used

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  • Rounded stone ejectors
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Examples

Experimental program
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Embodiment Construction

[0034] The following are definitions of selected terms as used herein. These definitions include various examples and / or forms of components that fall within the scope of the terms and may be used for implementation. The examples are not intended to be limiting. Both singular and plural forms of terms may be within the definitions.

[0035] "Axial" and "axially" refer to directions parallel to the axis of rotation of the tire.

[0036] "Bead" or "bead core" means that portion of a tire comprising an annular tensile member surrounded by layers of cord and formed with or without other reinforcing elements to fit the rim for which it is designed.

[0037] "Belt" or "belt" refers to the woven or nonwoven endless or parallel cord layers underlying the tread, not secured to the beads.

[0038] "Carcass" means the structure of the tire, excluding the belt structure, tread, undertread, and sidewall rubber, but including the beads (the carcass cords are wrapped around the beads).

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Abstract

A pneumatic tire includes a tread portion having a tread groove having a groove bottom and groove sidewalls. A row of rounded stone ejectors are spaced apart along a length of the groove. Each rounded stone ejector has a base attached to the groove bottom and independent from the groove sidewalls. Each rounded stone ejector has a rounded peak and is continuously tapered from the base to the rounded peak.

Description

Background technique [0001] 1. technical field [0002] The present invention relates generally to the construction of pneumatic tires, and more particularly, but not limitedly, to an improved construction of rock ejectors located in the tread area of ​​the tire. [0003] 2. Description of prior art [0004] One problem encountered during the use of pneumatic tires, and particularly with relatively large tires such as truck and bus radial tires used on eighteen-wheel trucks and on buses, is that stones become lodged in the tire relative to the tire. in the larger tread grooves. If a stone becomes lodged in the tread groove against the bottom of the tread groove, repeated impacts of the stone on the ground surface may cause the stone to cut or drill into the bottom of the tread groove, eventually touching structural members of the tire and lowering the Strength and longevity of tires. [0005] Such pneumatic tires are often provided with rock ejectors at the bottom of th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60C11/117B60C11/13
CPCB60C11/0309B60C2011/0346B60C2011/1361B60C11/1353
Inventor 亚历山大·I·什马格兰奥夫戴维·M·塞韦林史蒂芬·T·米兰达托德·A·巴克斯顿
Owner BRIDGESTONE AMERICAS TIRE OPERATIONS LLC