PNEUMATIC CIRCUIT FOR TIRE TESTING DEVICE, TIRE TESTING DEVICE, AND TIRE TESTING METHOD

摘要

Disclosed is a tire testing device capable of suppressing variations in air pressure occurring during tire testing by adjusting the temperature of air supplied to a tire. Specifically disclosed is a pneumatic circuit (1) of a tire testing device (2), which comprises an air supply source (10) that supplies air to a tire (T) mounted between a pair of rims (6, 7) and a pressure regulating valve (13) that regulates the pressure of the air supplied from the air supply source (10) to the tire (T) to a bead air pressure for inflating the tire (T) so that the tire (T) can be mounted on the rims (6, 7) or to a test air pressure that is lower than the bead air pressure and that is used during tire testing. The pneumatic circuit (1) of the tire testing device (2) also comprises an air temperature adjusting mechanism (21) that can cool the air supplied to the tire (T) at the bead air pressure such that the temperature thereof is reduced to a temperature lower than that of the outside air.