BEAD STRUCTURE FOR A PNEUMATIC TIRE

• US 20130146201A1
• Filed: 12/13/2011
• Published: 06/13/2013
• Est. Priority Date: 12/13/2011
• Status: Abandoned Application

• Current Assignee: Andreas Sieber, Francois Philippe Depouhon, Jean-Louis Marie Felicien Thomas, Mohammed Khiri, Yann Bernard Duval
• Original Assignee: Francois Philippe Depouhon, Jean-Louis Marie Felicien Thomas
• Inventors: Duval, Yann Bernard, Sieber, Andreas, Thomas, Jean-Louis Marie Flicien, Depouhon, Franois Philippe, Khiri, Mohammed
• Application Number:
  US13/324,403
• Publication Number:
  US 20130146201A1
• Time in Patent Office: Days
• US Class Current: 152/540
• CPC Class Codes: B60C 15/04 Bead cores
• CPC Class Codes: B60C 2015/042 characterised by the material of the core, e.g. alloy

Abstract

The present invention relates to a pneumatic tire having a bead structure provided therein. The bead structure is defined by a homogeneous arrangement of between 3-300 cords. Each cord comprises at least one strand wrapped by at least two strands.

Claims

1. A pneumatic tire having two bead structures provided therein, the bead structures being defined by a homogeneous arrangement of between 3-300 cords, each cord consisting of one metal strand wrapped by two metal strands,

each cord being coated with an elastomer compound, then subsequently wound to form the bead structure, each bead structure being shaping to replace an apex structure.

2. The pneumatic tire as set forth in claim 1 wherein the cords are steelcords.

3. The pneumatic tire as set forth in claim 1 wherein the cords are high tensile steel.

4. The pneumatic tire as set forth in claim 1 wherein the cords are normal tensile steel.

5. The pneumatic tire as set forth in claim 1 wherein the cords are ultra tensile steel.

6. The pneumatic tire as set forth in claim 1 wherein the bead structure is coreless.

8. The pneumatic tire as set forth in claim 1 wherein the bead structure has

a triangular cross-section.

9. The pneumatic tire as set forth in claim 1 wherein the bead structure has

a rectangular cross-section.

10. The pneumatic tire as set forth in claim 1 wherein the bead structure has a pentagonal cross-section.

7. (canceled)

11. A pneumatic tire having two bead structures provided therein, the bead structure being defined by a homogeneous arrangement of between 3-300 cords in cross-section, each cord consisting of two strands wrapped by two strands,

each cord being coated with an elastomer compound, then subsequently wound to form the bead structures, each bead structure being shaping to replace an apex structure.

12. The pneumatic tire as set forth in claim 11 wherein the construction of the cords is 0.295 mm diameter High Tensile Steel 2+2.

13. The pneumatic tire as set forth in claim 11 wherein the construction of the cords is 0.250 mm diameter Normal Tensile Steel 2+2.

14. The pneumatic tire as set forth in claim 11 wherein the construction of the cords is 0.210 mm diameter Ultra Tensile Steel 2+2.

15. (canceled)

16. (canceled)