Patent ID: 8511157
Filing Date: 2013-08-20
Classification: G01M,Y10T

Abstract:
1. A pneumatic circuit for tire testing device provided in a tire testing device having a tire holding unit for holding a tire, comprising: an air supply source for supplying compressed air to the tire held by the tire holding unit; a pressure regulating valve for regulating the pressure of the compressed air, which is supplied from said air supply source to the tire, to a testing air pressure; a pressure detection unit for detecting an air pressure to be exerted on the inside of the tire by the supply of the compressed air; and a volume adjustment mechanism connected to an airflow path between the inside of the tire and said pressure regulating valve, said volume adjustment mechanism increasing/decreasing, according to variation of the air pressure, the volume of the compressed air that exerts pressure on the inside of the tire, which is pressure-regulated by said pressure regulating valve.