IP Library › Granted Patent US 12,668,082
Granted Patent B2
US 12,668,082 · App. 18/564,207 · Granted Jun 30, 2026

Nonwoven body and tire

Inventors: Masahiko Yamamoto (Tokyo, JP); Yoshihide Kouno (Tokyo, JP)
Assignee: BRIDGESTONE CORPORATION
B60C7/06B60C7/18
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Quick Facts
Patent No.
US 12,668,082
App. No.
18/564,207
Filed
Nov 27, 2023
Granted
Jun 30, 2026
Kind
B2
Art Unit
3615
USPC
152/5
Abstract

A nonwoven body according to the disclosure includes a plurality of metal fibers each having a cross section orthogonal to a longitudinal direction, the cross section having a profile that is convex polygonal.

Claims (19)

1 . A tire comprising:

a skeleton portion including a rim member, a plurality of body springs latched on the rim member, and a plurality of interlink springs interlaced with the body springs; and

a tread member disposed on at least an outer periphery of the skeleton portion, wherein

the tread member includes a nonwoven body comprising a plurality of metal fibers each having a cross section orthogonal to a longitudinal direction, the cross section having a profile that is convex polygonal,

the nonwoven body is a sheet-shaped nonwoven fabric, and

the nonwoven fabric is rounded to form a rod shape, is disposed on the outer periphery of the skeleton portion and is at least partially embedded in grooves sectioned by the body springs and the interlink springs.

2 . The tire according to claim 1 , wherein the nonwoven fabric is rounded to form the rod shape such that a plurality of layers are laminated in a radial direction.

3 . The tire according to claim 1 , wherein the metal fibers are made of austenite stainless steel or aluminum alloy.

4 . The tire according to claim 1 , wherein the nonwoven body is constituted only of the plurality of metal fibers.

5 . The tire according to claim 1 , wherein the plurality of metal fibers mechanically tangle each other.

6 . The tire according to claim 1 , wherein the profile of the cross section orthogonal to the longitudinal direction of each of the metal fibers is rectangle.

7 . The tire according to claim 6 , wherein the metal fibers are made of austenite stainless steel or aluminum alloy.

8 . The tire according to claim 6 , wherein the nonwoven body is constituted only of the plurality of metal fibers.

9 . The tire according to claim 6 , wherein the plurality of metal fibers mechanically tangle each other.

10 . The tire according to claim 3 , wherein the nonwoven body is constituted only of the plurality of metal fibers.

11 . The tire according to claim 3 , wherein the plurality of metal fibers mechanically tangle each other.

12 . The tire according to claim 4 , wherein the plurality of metal fibers mechanically tangle each other.

13 . The tire according to claim 7 , wherein the nonwoven body is constituted only of the plurality of metal fibers.

14 . The tire according to claim 7 , wherein the plurality of metal fibers mechanically tangle each other.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Nov 27, 2023
From: YAMAMOTO, MASAHIKO; KOUNO, YOSHIHIDE
To: BRIDGESTONE CORPORATION
Reel/Frame 065665/0883 →
Priority Claims (1)
JP 2021-097608 · Jun 10, 2021 · national
Continuity (1)
Related Publication 20240246361A1 · Jul 25, 2024
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