Tire construction having a continuous body ply turn up structure
US-2016303920-A1 · Oct 20, 2016 · US
Pneumatic tire
US11207928B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-11207928-B2 |
| Application number | US-201816188863-A |
| Country | US |
| Kind code | B2 |
| Filing date | Nov 13, 2018 |
| Priority date | Nov 30, 2017 |
| Publication date | Dec 28, 2021 |
| Grant date | Dec 28, 2021 |
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- Title
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- Abstract
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- Assignees and inventors
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- First independent claim
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- CPC / IPC classifications
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Abstract
Official abstract text for this publication.
A pneumatic tire includes: paired bead portions respectively including annular bead cores and bead fillers disposed on an outer side in a tire radial direction of the bead cores; sidewall portions respectively extending outward in the tire radial direction from the bead portions; a tread portion connected to cuter ends in the tire radial direction of the sidewall portions to form a tread; and a carcass layer suspended between the bead portions. The carcass layer has a first ply that continuously extends between the bead portions and that has opposite end portions respectively and a second ply that continuously extends on the outer side in the tire radial direction of the first ply, wherein the first ply has higher tensile strength than that of the second ply, and the end portion is positioned on the outer side in the tire radial direction of the end.
First claim
Opening claim text (preview).
What is claimed is: 1. A pneumatic tire comprising: paired bead portions respectively including annular bead cores and bead fillers disposed on an outer side in a tire radial direction of the bead cores; sidewall portions respectively extending outward in the tire radial direction from the bead portions; a tread portion connected to outer ends in the tire radial direction of the sidewall portions to form a tread; and a carcass layer suspended between the bead portions, wherein the carcass layer has a first ply that continuously extends between the bead portions and that has opposite end portions respectively rolled up around the bead cores from inner sides in a tire width direction toward outer sides in the tire width direction and a second ply that continuously extends on the outer side in the tire radial direction of the first ply between the bead portions and that has opposite end portions respectively rolled up around the bead cores from the inner sides in the tire width direction toward the outer sides in the tire width direction, the first ply has higher tensile strength than the tensile strength of the second ply, and the end portion of the first ply disposed on an outside in mounting to a vehicle out of the opposite end portions of the first ply is positioned on the outer side in the tire radial direction of the end portion of the first ply disposed on an inside in the mounting to the vehicle out of the opposite end portions of the first ply, the end portion of the second ply disposed on the inside in the mounting to the vehicle out of the opposite end portions of the second ply is positioned on the outer side in the tire radial direction of the end portion of the second ply disposed on the outside in the mounting to the vehicle out of the opposite end portions of the second ply, and the end portion of the second ply disposed on the inside in the mounting to the vehicle out of the opposite end portions of the second ply is positioned on the outer side in the tire radial direction of an outer end in the tire radial direction of the bead filler on the inside in the mounting to the vehicle, and the end portion of the second ply disposed on the outside in the mounting to the vehicle out of the opposite end portions of the second ply is positioned on the outer side in the tire radial direction of an outer end in the tire radial direction of the bead filler on the outside in the mounting to the vehicle. 2. The pneumatic tire according to claim 1 , wherein the end portion of the first ply disposed on the outside in the mounting to the vehicle out of the opposite end portions of the first ply is positioned on the outer side in the tire radial direction of the end portion of the second ply disposed on the outside in the mounting to the vehicle out of the opposite end portions of the second ply. 3. A pneumatic tire comprising: paired bead portions respectively including annular bead cores and bead fillers disposed on an outer side in a tire radial direction of the bead cores; sidewall portions respectively extending outward in the tire radial direction from the bead portions; a tread portion connected to outer ends in the tire radial direction of the sidewall portions to form a tread; and a carcass layer suspended between the bead portions, wherein the carcass layer has a first ply that continuously extends between the bead portions and that has opposite end portions respectively rolled up around the bead cores from inner sides in a tire width direction toward outer sides in the tire width direction and a second ply that continuously extends on the outer side in the tire radial direction of the first ply between the bead portions and that has opposite end portions respectively rolled up around the bead cores from the inner sides in the tire width direction toward the outer sides in the tire width direction, the first ply has higher tensile strength than the tensile strength of the second ply, and the end portion of the first ply disposed on an outside in mounting to a vehicle out of the opposite end portions of the first ply is positioned on the outer side in the tire radial direction of the end portion of the first ply disposed on an inside in the mounting to the vehicle out of the opposite end portions of the first ply, the end portion of the second ply disposed on the inside in the mounting to the vehicle out of the opposite end portions of the second ply is positioned on the outer side in the tire radial direction of the end portion of the second ply disposed on the outside in the mounting to the vehicle out of the opposite end portions of the second ply, and the end portion of the second ply disposed on the inside in the mounting to the vehicle out of the opposite end portions of the second ply is positioned on an inner side in the tire radial direction of an outer end in the tire radial direction of the bead filler on the inside in the mounting to the vehicle, and the end portion of the second ply disposed on the outside in the mounting to the vehicle out of the opposite end portions of the second ply is positioned on the inner side in the tire radial direction of an outer end in the tire radial direction of the bead filler on the outside in the mounting to the vehicle.
Assignees
Inventors
Classifications
Tyres requiring an asymmetric or a special mounting · CPC title
Dimensions of the bead filler in terms of numerical values or ratio in proportion to section height · CPC title
Flipper strips, fillers, or chafing strips {and reinforcing layers for the construction of the bead} · CPC title
Height of the carcass terminal portion defined in terms of a numerical value or ratio in proportion to section height · CPC title
features of the carcass terminal portion · CPC title
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Frequently asked questions
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- What does patent US11207928B2 cover?
- A pneumatic tire includes: paired bead portions respectively including annular bead cores and bead fillers disposed on an outer side in a tire radial direction of the bead cores; sidewall portions respectively extending outward in the tire radial direction from the bead portions; a tread portion connected to cuter ends in the tire radial direction of the sidewall portions to form a tread; and a…
- Who is the assignee on this patent?
- Toyo Tire & Rubber Co, Toyo Tire Corp
- What technology area does this patent fall under?
- Primary CPC classification B60C15/0036. Mapped technology areas include Operations & Transport.
- When was this patent published?
- Publication date Tue Dec 28 2021 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).