PNEUMATIC TIRE
DRIVE
June 29, 2016
A pneumatic tire (1) includes a tread portion (2) having at least one heat-dissipating recess portion (9). The recess portion (9) includes an opening edge (10) and an inner wall portion (11). The opening edge (10) includes a linear first edge (10a) and second edge (10b) opposite each other. The inner wall portion (11) includes a first wall surface (11a) extending from the first edge (10a) to a bottom portion (9a) at the deepest position of the recess portion (9), and a second wall surface (11b) extending from the second edge (10b) to the bottom portion (9a). An inclination angle ([theta]1) of the first wall surface (11a) with respect to a first normal (12a) to a contact surface passing the first edge (10a) is greater than an inclination angle ([theta]2) of a second wall surface (22b) with respect to a second normal (23b) to the contact surface passing the second edge (21b).
Discussion in the ATmosphere