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Radial stone ejectors

A technology for catapults, stones, applied 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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Examples

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Embodiment Construction

[0031] 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.

[0032] "Axial" and "axially" refer to directions parallel to the axis of rotation of the tire.

[0033] "Bead" or "bead core" means that portion of a tire comprising an annular tensile member surrounded by layers of cord and shaped, with or without other reinforcing elements, to fit the rim for which it is designed.

[0034] "Belt" or "belt" refers to the woven or nonwoven endless or parallel cord layers underlying the tread, not secured to the beads.

[0035] "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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PUM

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Abstract

A pneumatic tire is disclosed having a tread portion including a tread groove having a groove bottom and groove sidewalls. The tread groove has a groove width defined as a shortest distance between the groove sidewalls. The groove has a groove length extending generally parallel to the groove sidewalls. A sequence of circumferentially spaced stone ejector ribs span between the opposed groove sidewalls.

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 in the use of pneumatic tires, especially relatively large tires such as those used on eighteen-wheel trucks and on buses, are radial tires for trucks and buses, where rocks become trapped In the relatively large tread grooves on the tire. If a stone becomes lodged in the tread groove against the bottom of the tread groove, repeated impact of the stone on the ground may cause the stone to cut or dig into the bottom of the tread groove, eventually touching structural members of the tire and lowering the tire strength and longevity. [0005] Such pneumatic tires typically have rock ejectors at the bottom of the tread grooves to help prevent thi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60C11/117B60C11/13
CPCB60C11/0306B60C11/047B60C11/1369B60C2011/0341B60C2011/0346
Inventor 亚历山大·I·什马格兰奥夫史蒂芬·T·米兰达戴维·M·塞韦林托德·A·巴克斯顿
Owner BRIDGESTONE AMERICAS TIRE OPERATIONS LLC
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