摘要:
A tube-type tire (1) to be mounted on the rim (30) of a (e.g., spoke- type) wheel such as that commonly used by a bicycle or a motorcycle, whereby the tube-type tire will operate without a conventional inner tube and as if it were tubeless. The tire (1) includes a main tire section (3) that is seated upon the generally flat shelf (7) of the rim (30) and a pneumatic sealing ring (50) having an inner tube (5) that is seated upon the beadwell (9) of the rim. An air chamber (34) of the inner tube (5) of the sealing ring (50) is inflated to a greater pressure than an air chamber (32) of the main tire section (3) so as to isolate the air chamber of the main tire section from the rim and force the main tire section against the vertical lip (8) of the rim (30). The sealing ring (50) also has an outer inflatable liner (10) that is located in surrounding engagement with the inner tube to separate the inner tube (5) from the air chamber (32) of the main tire section (3). The outer liner (10) has one or more O-ring seals (14) projecting outwardly from the side walls thereof and a centering lip (16) projecting downwardly from the side walls. The O- ring seals (14) are moved into sealing engagement with the inside of the main tire section (3) when the air chamber (34) of the inner tube (5) is inflated and the liner (10) is expanded. The centering lips (16) of the liner (10) are seated upon the beadwell (9) of the rim (30) to cause the liner to be automatically centered over the inner tube(5).
摘要:
Ensemble jante (la) et son pneumatique (2a) pour vélo, la jante (la) étant destinée à recevoir le pneumatique (2a), caractérisé en ce que la jante (la) comprend deux replats latéraux (6a, 6b) destinés à servir d'appui à deux tringles (8a, 8b) noyées dans la carcasse du pneumatique (2a), tandis que la jante est constituée par un profilé creux circulaire, formant un anneau de grand diamètre d'axe, qui est constitué par une première paroi (3) que l'on appellera interne, et une deuxième paroi (4) que l'on appellera paroi externe, tandis que ladite première paroi (3) est de section courbe dont la courbure est dirigée vers l'axe de la roue et sert d'une part à la résistance mécanique de la roue et à retenir l'ensemble des rayons reliés au moyeu, et que la deuxième paroi (4) est de section incurvée dont la concavité est dirigée vers l'axe de la roue, formant un profil en creux (5) destiné à coopérer avec le pneumatique (2a) correspondant pour le retenir par coopération de forme, et que le profilé de la jante comprend deux surfaces d'appui latérales (6a, 6b) au niveau des deux jonctions latérales (7a, 7b) entre la première paroi (3) et la deuxième paroi (4), ces deux surfaces d'appui (6a, 6b) étant des replats latéraux disposés de part et d'autre du plan général de symétrie (Y, Y') et forment deux surfaces cylindriques d'appui.
摘要:
Nutzfahrzeugluftreifen in Radialbauart, mit einem zumindest dreilagigen Gürtel (7) von denen zwei Gürtellagen als sogenannte Arbeitslagen (10, 11) sind und eine radial äußerste Gürtellage eine Abdecklage (12) ist, wobei jede dieser Gürtellagen (10, 11, 12) aus in Elastomer eingebetteten Festigkeitsträgern aus Stahlkord besteht und wobei die Stahlkorde jeder dieser drei Gürtellagen (10, 11, 12) zur guten Elastomerhaftung mit Messing beschichtet sind, wobei die Messingbeschichtung der Festigkeitsträger der beiden Arbeitslagen (10, 11) einen Kupferanteil von 60 Gew.% bis 65 Gew.% aufweist und die Messingbeschichtung der Festigkeitsträger der Abdecklage (12) einen Kupferanteil von 66 Gew.% bis 70 Gew.% aufweist.
摘要:
Tyre (100) for vehicle wheels, comprising a carcass structure comprising at least one carcass layer (101), a belt structure (106) applied in a radially outer position with respect to the carcass structure, a tread band (109) applied in a radially outer position with respect to said belt structure, and at least one layer of elastomeric material (111) applied in a radially inner position with respect to said tread band; in which said at least one elastomeric material layer comprises inorganic fibres of magnesium and/or aluminium silicates of nanometric dimensions.
摘要:
A pneumatic tire has reinforcement cord (24) adhered directly to, or embedded within, a low air-permeable inner-liner layer (22) which results in a pneumatic tire has a reduced cross-section thickness and/or reduced weight.
摘要:
A pneumatic tire wherein a part or the whole of the members constituting the tire is made of a rubber composition comprising 100 parts by weight in total of a rubber including at least 70 parts of a highly saturated copolymer rubber based on ethylenically unsaturated nitrile and conjugated diene and having a conjugated diene unit content of not more than 30 %, 0 to 120 parts by weight of zinc methacrylate, and 0 to 60 parts by weight of carbon black, the total amt. of the zinc methacrylate and carbon black incorporated being 10 to 120 parts by weight. The tire has two diene rubber layers and, interposed therebetween, an adhesive rubber layer comprising a rubber composition comprising 100 parts by weight in total of the predetermined diene rubber and acrylonitrile/butadiene copolymer rubber and 5 to 80 parts by weight of the predetermined aromatic petroleum resin.
摘要:
A composition, suitable for use in producing a tire carcass, is provided. The composition comprises a halogen-containing copolymer of a C4 to C7 isomonoolefin and a para-alkylstyrene; a rubber such as a blend of natural rubber and a copolymer of styrene and butadiene; carbon black, and a plasticizer oil. Tires comprising carcasses made of the composition are also provided.