Unlock instant, AI-driven research and patent intelligence for your innovation.

Tyre comprising self-sealing layer having radial flow gradient

A self-sealing and sealing layer technology, which is applied to tire parts, wheels, transportation and packaging, etc., can solve the problems of insufficient creep of products and achieve the effect of high creep resistance index

Inactive Publication Date: 2013-06-12
MICHELIN & CO CIE GEN DES ESTAB MICHELIN
View PDF8 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Also, if the product is too rigid and / or does not have a large enough creep capacity, the product will not sufficiently creep into the puncture, especially in cold climates

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Tyre comprising self-sealing layer having radial flow gradient
  • Tyre comprising self-sealing layer having radial flow gradient
  • Tyre comprising self-sealing layer having radial flow gradient

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0070] Mutually orthogonal axes X, Y, Z corresponding to the conventional radial (X), axial (Y) and circumferential (Z) orientations of a pneumatic tire have been indicated in the figures.

[0071] figure 1 A pneumatic tire according to a first embodiment of the present invention, denoted by general reference numeral 10A, is shown.

[0072] In this particular case, the pneumatic tire 10A is intended to be mounted to the wheel of a motor vehicle of the passenger car type.

[0073] The pneumatic tire 10A includes a crown S extended by two shoulders E, two sidewalls F and two beads B in a conventional manner. Only one sidewall F, only one shoulder E and only one bead B are shown in the figure.

[0074] Into the bead B are embedded two bead wires 16 (only one shown). The two bead wires 16 are arranged symmetrically with respect to the radial midplane M of the pneumatic tire.

[0075] Each bead wire 16 has a rotation about a reference axis. Said reference axis, which is substa...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
glass transition temperatureaaaaaaaaaa
Login to View More

Abstract

The invention relates to a tyre (10A) comprising an inner sealing layer (40) partially defining the internal volume (V) of the tyre and a layer (54) of at least one self-sealing product, known as a self-sealer. The self-sealing layer (54) is disposed radially inside the inner sealing layer (40) and includes a flow resistance indicator that decreases radially towards the exterior of the tyre (10A).

Description

technical field [0001] The present invention relates to the field of pneumatic tyres, more particularly pneumatic tires equipped with means for self-sealing punctures in pneumatic tyres. Background technique [0002] Generally, pneumatic tires include an inner sealing layer that defines the interior volume of the pneumatic tire. Said layer generally comprises rubber of the butyl type, which is known to be airtight. [0003] In use, a pneumatic tire may become punctured if a piercing object such as a nail is pierced through the pneumatic tire. This puncture causes the pneumatic tire to lose air. [0004] In order to prevent a pneumatic tire from losing air, it has been proposed to place an additional layer of a relatively soft product capable of creeping easily in contact with the inner sealing layer. Thus, in the event of a puncture, the product of said additional layer, due to its flexibility and its ability to easily creep, penetrates said puncture and prevents the pneu...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): B29C73/16B60C19/12C08K5/00C08L7/00C08L9/00
CPCB29C73/22B60C19/122C08K5/0016C08K5/01Y10T152/10666C08L21/00B60C19/12
Inventor B·沃热J·美利奴洛佩M·阿胡瓦图
Owner MICHELIN & CO CIE GEN DES ESTAB MICHELIN