Lightweight tire comprising layer of circumferential reinforcing elements

• Main Authors: JOULIN EMMANUEL, FOURNIER OREL
• Format: Patent
• Language: Chinese; English
• Published: 21.11.2023
• 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

The invention relates to a tyre (1) with a radial carcass reinforcement, comprising two working crown layers (41, 42) and one layer (43) of circumferential reinforcing elements, said two working crown layers (41, 42) and one layer (43) of circumferential reinforcing elements being the only layers present over at least 75% of the width L5 of the tread (5) for forming the crown reinforcement (4), the absolute value of the difference between the absolute value of the angle alpha 2 and the absolute value of the angle alpha 1 is larger than 7 degrees, the absolute value of the angle alpha 2 is larger than the absolute value of the angle alpha 1, and the average angle alpha meets the following relational expression: 13 + 131 * exp (-L/100) lt; [alpha] [lt]; and 28 + 110 * exp (-L/100). According to the invention, layer C has a secant elastic modulus of less than 8 MPa at 10% elongation. 本发明涉及一种具有径向胎体增强件的轮胎(1)，其包括两个工作胎冠层(41，42)和一个周向增强元件层(43)，所述两个工作胎冠层(41，42)和一个周向增强元件层(43)为存在于胎面(5)的至少75％的宽度L5上用以形成胎冠增强件(4)的仅有的层，角度α2与α