Pneumatic tire

Patent metadata

Field	Value
Publication number	US-10836219-B2
Application number	US-201515501806-A
Country	US
Kind code	B2
Filing date	Aug 4, 2015
Priority date	Aug 4, 2014
Publication date	Nov 17, 2020
Grant date	Nov 17, 2020

Abstract

A pneumatic tire (1) includes a mechanical fastener (3) formed of at least two or more fastener components (3a, 3b) and attached to a tire inner surface (2). In such a pneumatic tire (1), the two or more fastener components (3a, 3b) of the mechanical fastener (3) are fixed with a resin reinforcement member (7) sandwiched therebetween, the resin reinforcement member (7) including at least one layer of a resin film or resin sheet including any of: (a) a resin or a resin composition made of a blend of resin and an elastomer; (b) a resin or a resin composition made of a blend of a resin and an elastomer including arranged fibers; and (c) a resin or a resin composition made of a blend of a resin and an elastomer with short fibers compounded therein.

First claim

The invention claimed is:

1. A pneumatic tire comprising: a mechanical fastener formed of at least two or more fastener components and attached to a tire inner surface, the mechanical fastener being a first mechanical fastener of a separatable pair of mechanical fasteners;
the two or more fastener components being fixed with a resin reinforcement member sandwiched therebetween, the resin reinforcement member comprising at least one layer of a resin film or resin sheet comprising any of:
(a) a resin composition made of a blend of a resin and an elastomer comprising arranged fibers; or
(b) a resin composition made of a blend of a resin and an elastomer with short fibers compounded therein;
wherein the blend of the resin and the elastomer of (a) or (b) has a structure in which the elastomer is distributed as a discontinuous phase in a matrix of the resin, the resin being a thermoplastic resin; and
wherein a profile shape of the mechanical fastener obtained by projecting the fastener onto the tire inner surface exhibits a distance R from a center of gravity position of the profile shape to a farthest point on the profile line of from 8 to 60 mm.

2. The pneumatic tire according to claim 1 , wherein an attachment position of the mechanical fastener is within a region in which a distance D (mm) in a tire width direction between a center position C of the mechanical fastener and a tire equator line L satisfies the relationship 0≤D/W≤0.4 with respect to a maximum width W (mm) of the tire.

3. The pneumatic tire according to claim 1 , wherein an attachment position of the mechanical fastener is within a region in which a tire radial direction height A from a bead toe tip to a center position of the mechanical fastener and a tire cross-sectional height H satisfy the relationship 0.05≤A/H≤0.4.

4. The pneumatic tire according to claim 1 , wherein the resin reinforcement member fixed between the mechanical fasteners is directly adhered to the tire inner surface or is fixed to the tire inner surface via an adhesive layer at a boundary between the resin reinforcement member and the tire inner surface.

5. The pneumatic tire according to claim 1 , wherein a surface area S 2 (cm 2 ) per mechanical fastener of the resin film or resin sheet sandwiched between the fastener components is from 8 to 300 cm 2 .

6. The pneumatic tire according to claim 1 , wherein the mechanical fastener is disposed so that a profile line of the mechanical fastener is at least 2 mm away from a profile line of the resin reinforcement member and is positioned on an inner side of the profile line of the resin reinforcement member.

7. The pneumatic tire according to claim 1 , wherein a profile shape of the resin film or resin sheet in a plan view is formed of a curved line having a radius of curvature of at least 5 mm without any acute angle portion, or is formed of a combination of a straight line and the curved line having a radius of curvature of at least 5 mm.

8. The pneumatic tire according to claim 1 , wherein an object comprising a second mechanical fastener that engages with the first mechanical fastener on the tire inner surface is fixed to the tire inner surface by engagement of the first mechanical fastener and the second mechanical fastener.

9. The pneumatic tire according to claim 8 , wherein the object comprising the second fastener is formed of one or a combination of (a) an electronic circuit comprising a sensor, (b) a balance weight, (c) a run-flat core, (d) an object on which an oxygen scavenger, a drying agent, and/or an ultraviolet light detecting color fixing agent is applied or mounted, (e) a noise absorbing member, and (f) a surface fastener member.

10. The pneumatic tire according to claim 2 , wherein the resin reinforcement member fixed between the mechanical fasteners is directly adhered to the tire inner surface or is fixed to the tire inner surface via an adhesive layer at a boundary between the resin reinforcement member and the tire inner surface.

11. The pneumatic tire according to claim 10 , wherein a surface area S 2 (cm 2 ) per mechanical fastener of the resin film or resin sheet sandwiched between the fastener components is from 8 to 300 cm 2 .

12. The pneumatic tire according to claim 11 , wherein the mechanical fastener is disposed so that a profile line of the mechanical fastener is at least 2 mm away from a profile line of the resin reinforcement member and is positioned on an inner side of the profile line of the resin reinforcement member.

13. The pneumatic tire according to claim 12 , wherein a profile shape of the resin film or resin sheet in a plan view is formed of a curved line having a radius of curvature of at least 5 mm without any acute angle portion, or is formed of a combination of a straight line and the curved line having a radius of curvature of at least 5 mm.

14. The pneumatic tire according to claim 13 , wherein an object comprising a second mechanical fastener that engages with the first mechanical fastener on the tire inner surface is fixed to the tire inner surface by engagement of the first mechanical fastener and the second mechanical fastener.

15. The pneumatic tire according to claim 1 , wherein the mechanical fastener is disposed so that a profile line of the mechanical fastener is at least 2 mm away and not greater than 3.5 mm away from a profile line of the resin reinforcement member and is positioned on an inner side of the profile line of the resin reinforcement member.

Assignees

• Yokohama Rubber Co Ltd

Inventors

• Sakamoto Hayato
• Hashimura Yoshiaki
• Tanno Atsushi

Classifications

• B29D30/0061

  Accessories, details or auxiliary operations not otherwise provided for · CPC title

• B29D2030/0072

  Attaching fasteners to tyres, e.g. patches, in order to connect devices to tyres · CPC title

• B60C23/0493

  for attachment on the tyre · CPC title

• B60C19/00 Primary

  Tyre parts or constructions not otherwise provided for · CPC title

• B60C19/003

  Balancing means attached to the tyre · CPC title