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Double half-carcass tyre with lowered crown reinforcements

A technology for reinforcements and tires, applied to special tires, tire parts, reinforcement layers of pneumatic tires, etc., can solve problems such as limited room for maneuver, achieve the effect of reducing slippage and increasing water storage

Inactive Publication Date: 2007-05-02
MICHELIN & CO CIE GEN DES ESTAB MICHELIN +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

While it is often desirable to limit the thickness, mass of the zone, leeway is often limited

Method used

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  • Double half-carcass tyre with lowered crown reinforcements
  • Double half-carcass tyre with lowered crown reinforcements
  • Double half-carcass tyre with lowered crown reinforcements

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0051] Figure 1 shows a cross-sectional view of a first form of embodiment of the tire according to the invention. The axially outer portion 2 of the bead 1 is shaped to fit against the flange of the rim. The radially inward end face of the bead 1 is the bead seat 4, which can sit on the rim seat. The bead also comprises an axially inner portion 3 which projects radially from the seat 4 towards the sidewall 6 .

[0052] The tire also comprises a reinforcing structure 10 or carcass-shaped reinforcing structure on which the reinforcements are arranged substantially radially. The structure preferably consists of two parts, for example one on each side of the tire along the sidewalls, but not covering the entire crown.

[0053] The reinforcement included in the crown 40 consists of at least one, preferably two, primary reinforcement structures (crown plies) that provide the required protection and rigidity to this area of ​​the tire. In the example shown in FIG. 1 , the inner m...

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PUM

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Abstract

A tire comprising at least one reinforcement structure of carcass type anchored on each side of the tire in a bead, a crown reinforcement, each bead being extended radially towards the outside by a sidewall, said reinforcement structure being discontinuous over at least a portion of the crown of the tire, said crown reinforcement comprising on the one hand at least one primary reinforcement structure covering substantially the entire width of the crown and comprising on the one hand, on each side of the tire, a lateral primary reinforcement structure portion disposed radially outside the adjacent carcass-type reinforcement structure portion and on the other hand a median primary reinforcement structure portion disposed radially more to the inside than the lateral primary reinforcement structure portions and at least one substantially axial row of median circumferential reinforcements disposed radially to the outside, substantially adjacent the median primary reinforcement structure portion.

Description

technical field [0001] The present invention relates to the field of tyres, and more particularly, the present invention relates to the arrangement and construction of reinforcing structures in the crown region of tires. Background technique [0002] Current reinforcements comprise one or several ply layers, traditionally called "carcass ply", "crown ply", etc. This nomenclature for reinforcements derives from the manufacturing process that consists in producing a series of semi-finished products in the form of plies with often longitudinal reinforcing cords, which are then assembled into the tire. The wire mesh layer is made into a large-sized plane form, and then cut according to the given product size. The wire mesh layer in the first stage of assembly is also flat. The blank thus produced is then processed into a toroidal profile that conforms to the shape of the tire. Semi-finished products called "finishes" are then applied to this blank in order to obtain the produ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B60C9/22B60C9/04B60C9/20B60C9/18B60C9/08B29D30/10B60C3/04B60C9/02B60C15/00
CPCB60C9/2009B60C9/04B60C9/22B60C3/04B60C9/18B60C9/0207Y10T152/10864Y10T152/10792Y10T152/10765
Inventor D·雅尔迪内P·奥赛尔
Owner MICHELIN & CO CIE GEN DES ESTAB MICHELIN
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