Tire with shaped tread

Patent metadata

Field	Value
Publication number	US-2022016857-A1
Application number	US-202117478167-A
Country	US
Kind code	A1
Filing date	Sep 17, 2021
Priority date	Dec 29, 2015
Publication date	Jan 20, 2022
Grant date	—

Abstract

A green tire includes a plurality of sheets of green rubber having a substantially circular shape, with each sheet having a tread region disposed along a circumference. A plurality of objects are sandwiched between adjacent sheets of green rubber in the tread region. Each object is constructed of a material selected from the group consisting of steel, polyester, nylon, carbon fiber, aramid, fiber glass, cotton, hemp, polyurethane and other plastic, other synthetic or natural fibers and other metal materials.

First claim

What is claimed is:

1 . A green tire comprising:
a plurality of sheets of green rubber having a substantially circular shape, each sheet having a tread region disposed along a circumference; and a plurality of objects sandwiched between adjacent sheets of green rubber in the tread region, wherein each object is constructed of a material selected from the group consisting of steel, polyester, nylon, carbon fiber, aramid, fiber glass, cotton, hemp, polyurethane and other plastic, other synthetic or natural fibers, and other metal materials.

2 . The green tire of claim 1 , wherein each sheet of green rubber includes an upper ring, a lower ring, and a plurality of spoke portions extending from the upper ring to the lower ring.

3 . The green tire of claim 1 , wherein at least one of the sheets of green rubber defines a sidewall of the green tire.

4 . The green tire of claim 1 , wherein the plurality of objects includes an object that protrudes beyond the tread region of the green tire.

5 . The green tire of claim 1 , wherein the plurality of objects includes at least one of pins and wires.

6 . The green tire of claim 1 , further comprising a plurality of voids disposed below a surface of the tread region.

7 . The green tire of claim 6 , wherein at least one of the voids has a closed geometric shape.

8 . The green tire of claim 6 , wherein at least one of the voids defines an undercut in the circumferential tread.

9 . The green tire of claim 1 , wherein the sheets of green rubber have a thickness in the axial direction between 0.02 mm and 2 mm.

10 . The green tire of claim 1 , wherein the tread region includes a predetermined tread shape including at least one of lugs, blocks, grooves, ribs, and sipes.

11 . A green tire comprising:
a plurality of sheets of green rubber having a substantially circular shape, each sheet having a tread region disposed along a circumference, each sheet of green rubber having a plurality of voids disposed below a surface of the tread region, such that the voids are not visible from an external view of the tire; and a plurality of objects sandwiched between adjacent sheets of green rubber in the tread region.

12 . The green tire of claim 11 , wherein each object is constructed of a material selected from the group consisting of steel, polyester, nylon, carbon fiber, aramid, fiber glass, cotton, hemp, polyurethane and other plastic, other synthetic or natural fibers, and other metal materials.

13 . The green tire of claim 11 , wherein the plurality of objects includes at least one of pins and wires.

14 . The green tire of claim 11 , wherein the sheets of green rubber have a thickness in the axial direction between 0.02 mm and 2 mm.

15 . The green tire of claim 11 , wherein the tread region includes a predetermined tread shape including at least one of lugs, blocks, grooves, ribs, and sipes.

16 . A green tire comprising:
a plurality of sheets of green rubber having a substantially circular shape, each sheet having a tread region disposed along a circumference, an upper ring, a lower ring, and a plurality of spoke portions extending from the upper ring to the lower ring; a plurality of objects sandwiched between adjacent sheets of green rubber in the tread region, at least one of the plurality of objects protruding beyond the tread region of the green tire.

17 . The green tire of claim 16 , wherein at least one of the sheets of green rubber defines a sidewall of the green tire.

18 . The green tire of claim 16 , wherein the plurality of objects includes at least one of pins and wires.

19 . The green tire of claim 16 , further comprising a plurality of voids disposed below a surface of the tread region.

20 . The green tire of claim 16 , wherein the sheets of green rubber have a thickness in the axial direction between 0.02 mm and 2 mm.

Assignees

• Bridgestone Americas Tire Operations Llc

Inventors

• Haidet Andrew V
• Costlow Douglas B
• Asper Robert W

Classifications

• B60C7/10

  characterised by means for increasing resiliency · CPC title

• B29D2030/0083

  Attaching monitoring devices to tyres before or after vulcanization by inserting them inside tyre cavities · CPC title

• B29D2030/526

  the tread comprising means for discharging the electrostatic charge, e.g. conductive elements or portions having conductivity higher than the tread rubber · CPC title

• B60C7/107

  comprising lateral openings · CPC title

• B60C11/14

  Anti-skid inserts, e.g. vulcanised into the tread band · CPC title