PNEUMATIC TIRE

The invention provides a pneumatic tire (2), which can guarantee rigidity and achieves reduction of mass and rolling resistance, wherein a length from a center in an axial direction of a boundary between a core (30) and an apex (32) of each bead (10) to an outer end (PA) of the apex (32) is not less...

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Bibliographic Details
Main Authors SUENO JUNYA, HAYAMA KOHEI
Format Patent
LanguageChinese
English
Published 07.02.2020
Subjects
DEVICES OR ARRANGEMENTS RELATED TO TYRES
PERFORMING OPERATIONS
REPAIRING, OR CONNECTING VALVES TO, INFLATABLE ELASTIC BODIESIN GENERAL
TRANSPORTING
TYRE CHANGING OR REPAIRING
TYRE INFLATION
VEHICLE TYRES
VEHICLES IN GENERAL
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Summary:The invention provides a pneumatic tire (2), which can guarantee rigidity and achieves reduction of mass and rolling resistance, wherein a length from a center in an axial direction of a boundary between a core (30) and an apex (32) of each bead (10) to an outer end (PA) of the apex (32) is not less than 10 mm and not greater than 15 mm; the tire further comprising a rubber reinforcing layer (22)between the carcass and clinch; in a state where the tire (2) is mounted on a normal rim and an internal pressure of the tire is adjusted to a normal internal pressure, a shape of a main body portion(36) of the carcass ply (34) which is located in a zone from a boundary portion between a tread (4) and each sidewall (6) to the outer end (PA) of each apex (32) is represented by a single circular arc, and a diameter of the circular arc is not less than 75% and not greater than 90% of a cross-sectional height of a carcass (14). 本发明提供一种充气轮胎(2)，确保刚性并实现质量及滚动阻力的降低。在该轮胎(2)中，从胎圈(10)的芯(30)与三角胶(32)的边界的轴向中心到三角胶(32)的外端的长度为10mm以上15m
Bibliography:Application Number: CN201910639862