pneu para rodas de veículo, e,fita emborrachada.

    公开(公告)号:BR112012033759A2

    公开(公告)日:2016-11-22

    申请号:BR112012033759

    申请日:2011-08-03

    Applicant: PIRELLI

    Abstract: pneu para rodas de veículo,e,fita emborrachada. um pneu comprrendendo uma estrutura de carcaça compreendendo pelo menos uma lona de carcaça (101), uma estrutura de cinta (105) aplicada em uma posição radialmente externa com relação à dita estrutura de carcaça e uma banda de rodagem (106) aplicada à dita estrutura de cinta é descrito. a estrutura de cinta (105) compreende pelo menos uma tira de força (105d) que incorpora uma pluralidade de elementos de reforço arranjados substancialmente na direção circunferencial. os elementos de reforço compreendem pelo menos um cordonel de metal de alto alongamento. o cordonel de metal compreende uma pluralidade (m) de filamentos entrelaçados (201) e cada filamento compreende uma pluralidade (n) de filamentos (202,203). vantajosamente todos os filamentos (202,203) de cada filamento (201) possuem um diâmetro não maior do que 0,175 mm.

    4.
    发明专利
    未知

    公开(公告)号:AT415293T

    公开(公告)日:2008-12-15

    申请号:AT05706995

    申请日:2005-01-25

    Applicant: PIRELLI

    Abstract: A truck pneumatic tyre, the bead core of which includes: a) a plurality of coils of at least one metallic wire, the coils being radially superimposed and axially arranged side-by-side with respect to each other, and b) a retaining member enveloping the plurality of coils, the retaining member including a plurality of mutually substantially parallel elongated reinforcing elements that include at least one preformed threadlike metallic element.

    Pneumatic tyre with improved bead structure

    公开(公告)号:EG26699A

    公开(公告)日:2014-06-11

    申请号:EGNA2007000501

    申请日:2007-05-23

    Abstract: A truck pneumatic tyre, the bead core of which includes: a) a plurality of coils of at least one metallic wire, the coils being radially superimposed and axially arranged side-by-side with respect to each other, and b) a retaining member enveloping the plurality of coils, the retaining member including a plurality of mutually substantially parallel elongated reinforcing elements that include at least one preformed threadlike metallic element.

    7.
    发明专利
    未知

    公开(公告)号:DE602005011339D1

    公开(公告)日:2009-01-08

    申请号:DE602005011339

    申请日:2005-01-25

    Applicant: PIRELLI

    Abstract: A truck pneumatic tyre, the bead core of which includes: a) a plurality of coils of at least one metallic wire, the coils being radially superimposed and axially arranged side-by-side with respect to each other, and b) a retaining member enveloping the plurality of coils, the retaining member including a plurality of mutually substantially parallel elongated reinforcing elements that include at least one preformed threadlike metallic element.

    Pneu para rodas de veículo
    8.
    发明专利

    公开(公告)号:BR112017028220B1

    公开(公告)日:2021-09-14

    申请号:BR112017028220

    申请日:2016-06-27

    Applicant: PIRELLI

    Abstract: pneu para rodas de veículo. a presente invenção refere-se a um pneu para rodas de veículo. o pneu (100) compreende pelo menos uma camada de insonorização (301) tendo uma altura radial (t) e uma largura axial (l), em que a dita camada de insonorização (301) é afixada a uma superfície radialmente interna (113) do pneu (100) colocada em uma banda de rodagem (109). a razão t/c entre a altura radial (t) da camada de insonorização (301) e a largura de seção transversal máxima (c) do pneu (100) é menor que ou igual a cerca de 0,2. a camada de insonorização (301) delimita, juntamente com a superfície radialmente interna (113), um canal (309) que se estende ao longo de uma direção circunferencial. a razão ar/s entre uma área da seção de passagem (ar) do canal (309) e uma seção total (s) da camada de insonorização (301) está compreendida entre cerca de 0,04 e cerca de 0,2.

    9.
    发明专利
    未知

    公开(公告)号:BRPI0622063A2

    公开(公告)日:2014-05-20

    申请号:BRPI0622063

    申请日:2006-10-16

    Applicant: PIRELLI

    Abstract: Process for manufacturing a tyre, includes the following steps: (a) winding at least one metal wire so as to form a plurality of coils, the coils being radially superimposed and axially arranged side-by-side with respect to one another, so as to obtain a bead core; (b) applying at least one layer of a crosslinkable elastomeric material to the bead core obtained in step (a), so as to obtain a coated bead core; (c) partially crosslinking the at least one layer of crosslinkable elastomeric material, so as to obtain an amount of free sulfur of 30% by weight to 70% by weight, preferably of 40% by weight to 65% by weight, more preferably of 50% by weight to 60% by weight, with respect to the total weight of the sulfur present in the crosslinkable elastomeric material; and (d) applying a bead filler to the radial outer surface of the bead core obtained in step (c), so as to obtain a bead structure for a green tyre.

    10.
    发明专利
    未知

    公开(公告)号:BRPI0622219A2

    公开(公告)日:2012-01-03

    申请号:BRPI0622219

    申请日:2006-12-18

    Applicant: PIRELLI

    Abstract: A heavy load vehicle tire includes a bead structure having two reinforcing layers adjacent to the inner side of the carcass turned up ply and a chafer layer including reinforcing elements. The reinforcing layers are preferably made of steel cords including preformed filaments, the cords being inclined at angles between +10° to +35° and −10° to −35° with respect to the radial plane of the tire.

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