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Fixing of tyre body

A technology for tires and carcass, which is applied to the reinforcement layer of pneumatic tires, special tires, tire parts, etc., and can solve the problems of rigidity, difficulty in loading and unloading tires, etc.

Inactive Publication Date: 2006-10-04
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

However, applicants have found that the significant rigidity of such beads presents difficulties in handling tires, especially large tires such as truck tires manually

Method used

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  • Fixing of tyre body
  • Fixing of tyre body
  • Fixing of tyre body

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0052] exist figure 1 , a bead and a sidewall of a tire according to the present invention are shown in partial cross-section. The tire comprises a sidewall 1 adjacent to a bead 2 . The carcass reinforcing layer 3 extends from the bead 2 to the sidewall 1 in the circumferential direction and forms the circumferential arrangement of the cords 4 of the first layer in this embodiment. The cords 4 of the first layer are arranged radially in the bead and sidewall and are secured to the bead 2 in the fixation area 20 . The fixing area 20 comprises two main parts, the two circumferential windings 41 and 42 of the cords of the second layer 7 arranged on either side of the area 40 of the cords of the first layer 4 , cooperating with the rubber adhesive compound 9 . Said rubber adhesive compound 9 is applied on both sides of the zone 40 of the cords of the first layer 4 and on both sides of the circumferential windings 41 and 42 of the cords of the second layer 7 . The rubber adhesiv...

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PUM

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Abstract

The pneumatic tire comprises a crown, two sidewalls (1) and beads (2). Its carcass (3) is reinforced with layers laid in a circumferential direction between bead and a sidewall and anchored in (3). The bead anchoring zone (20) has a second reinforcing system (7) located circumferentially, co-operating with the adjacent reinforcement by a rubber anchoring mixture (9) between the reinforcing elements. The pneumatic tire comprises a crown, two sidewalls (1) and beads (2), has its carcass (3) reinforced with adjacent primary layers laid in a circumferential direction between at least one bead and a sidewall and anchored in the bead. The bead anchoring zone (20) contains a second reinforcing system (7) which is located circumferentially and co-operates with the adjacent portion of the carcass reinforcement by means of a rubber anchoring mixture (9) in contact with the two sets of reinforcing elements. The rubber mixture has a modulus of elasticity at 10 % deformation of 10-20 MPa. The rubber anchoring mixture contains at least one synthetic elastomer selected from styrene-butadiene rubber (SBR) or polybutadienes, with a total proportion of synthetic elastomer greater than 50 wt. % of the total elastomer.

Description

technical field [0001] The present invention relates to a tire and, in particular, to the arrangement of carcass cords and their fixation in the bead. Background technique [0002] More recently, WO 98 / 54006 proposes a new type of tire carcass reinforcement and its fixation in the bead. The tire described in this application comprises a crown, two sidewalls and two beads, a carcass reinforcement with a first layer of cords, and a crown reinforcement; wherein the first layer of cords are aligned in the circumferential direction adjacent to and extending from at least one of said beads to one of said sidewalls and secured to said beads with said cords in circumferential alignment with one another; each bead contains a The bonded region remains and includes at least one circumferentially oriented second layer cord cooperating with an adjacent portion of said carcass reinforcement by a rubber bonding compound. The rubber adhesive compound has an elastic modulus greater than 20...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B60C9/00B60C15/00B60C1/00
CPCB60C2015/042B60C2001/005B60C15/0018B60C9/00
Inventor P·勒布隆L·于奥Y·埃贝莱奥
Owner MICHELIN & CO CIE GEN DES ESTAB MICHELIN