Elastic Vehicle Tire

• US 20130048181A1
• Filed: 05/02/2011
• Published: 02/28/2013
• Est. Priority Date: 05/07/2010
• Status: Active Grant

• Current Assignee: Recticel Engineered Foams Belgium
• Original Assignee: Recticel N.V.
• Inventors: Benoit, Kristof
• Granted Patent: US 9,446,633 B2
• Time in Patent Office: Days
• US Class Current: 152/450
• CPC Class Codes: B60C 19/002 Noise damping elements provided in the tyre structure or attached thereto, e.g. in the tyre interior
• CPC Class Codes: B60C 5/002 filled at least partially with foam material
• CPC Class Codes: Y10T 152/10495 Pneumatic tire or inner tube

Abstract

The invention relates to an elastic vehicle tire (1) comprising a tire cavity. Said cavity is enclosed by a running strip (2) supporting the tread surface (3) and a side wall (4, 4.1) formed on each side of the running strip (2). A noise dampening insert (9) or a noise dampening insert arrangement disposed therein is provided in the tire cavity. A ventilation layer (13) having a structure permeable to air at least in the transverse and/or longitudinal direction of the running strip (3) is disposed between the noise dampening insert (9) or noise dampening insert arrangement and connected to the inner side (10) of the running strip (2) supporting the running surface (3). Said layer is suitable for passing an air flow at least partially in contact with the inner wall (10) of the running strip (2).

Claims

1. Elastic vehicle tire comprising a cavity, enclosed by a running strip (2) supporting the tread surface (3) and a side wall (4, 4.1) formed on each side of the running strip (2), and at least one noise dampening insert (9, 16, 18, 19, 22, 24, 29, S) arranged in the tire cavity or one noise dampening insert arrangement (25, 27) arranged in the tire cavity, characterized in that, between the noise dampening insert (9, 16, 18, 19, 22, 24, 29, S) or the noise dampening insert arrangement (25), connected to the inner side (10) of the running strip (2) supporting the tread surface (3), a ventilation layer (13, 15, 17, 20, 21, 23, 26, 28, 30, V) extending in the peripheral direction of the running strip (2) is arranged, having a structure through which air can flow in the transverse and/or longitudinal direction of the running strip (3), and suitable for allowing the passage of an air flow which is at least partially in contact with the inner wall (10) of the running strip (2).

2. Tire according to claim 1, characterized in that the ventilation layer (13, 15, 17, 20, 21, 23, 26, 28, 30, V) has elastic properties at least in the radial direction.

3. Tire according to claim 1 or 2, characterized in that the ventilation layer (13, 15, 17, 20, 21, 23, 26, 28, 30, V) is in a connection with the remaining tire cavity (11) that allows the throughflow of air.

4. Tire according to claim 3, characterized in that the noise dampening insert (9) or the noise dampening insert arrangement has perforations (14) for forming an air flow connection between the ventilation layer (13) and the remaining tire cavity (11).

5. Tire according to claim 3 or 4, characterized in that the ventilation layer (15, 17, 20, V) itself with a portion of its surface area delimits the remaining tire cavity present.

6. Tire according to one of claims 1-5, characterized in that the ventilation layer is formed at least partially from a heat conducting material, for example, a metal fiber, optionally connected to a metal nonwoven, or a metal mesh.

7. Tire according to one of claims 1-6, characterized in that the ventilation layer (13, 15, 17, 20, 21, 23, 26, 28, 30, V) is designed as open pore foam body.

8. Tire according to claim 7, characterized in that the ventilation layer (13, 15, 17, 20, 21, 23, 26, 28, 30, V) is designed as an open pore polyurethane foam body, in particular as a reticular foam body.

9. Tire according to one of claims 1-8, characterized in that the ventilation layer (V) has a peripheral design extending in the peripheral direction, and as a result an air flow path is made available which is peripheral and arranged on the inner side of the running strip.

10. Tire according to one of claims 1-9, characterized in that the ventilation layer (15, 17, 20, V) has an extent in the direction transverse to the peripheral direction, which corresponds substantially to the width of the tire tread (3).

11. Tire according to one of claims 1-10, characterized in that the noise dampening insert (18, 19) is enclosed in the material of the ventilation layer (17, 20).

12. Tire according to claim 11, characterized in that the unit formed by the noise dampening insert (19) and the ventilation layer (20) is applied under a certain preliminary stress in the standing position with force-fitting connection on the inner side of the tire (R).

13. Tire according to one of claims 1-12, characterized in that several mutually parallel ventilation layers (30) are provided.

14. Tire according to one of claims 1-10, characterized in that the unit formed by a ventilation layer (V) and a noise dampening insert (S) is arranged eccentrically relative to the center longitudinal plane of the tire (R).

15. Tire according to one of claims 1-14, characterized in that, between the ventilation layer and the inner side of the running strip, a thermally conducting layer is arranged for removing heat from the inner side of the running strip into the tire cavity, thermally conducting layer which extends at least in sections into the tire cavity to radiate heat.