Abstract: Repeated small irregularity, i.e. defect in outer shape on a sidewall portion S of a pneumatic tire T is detected. An order analysis is performed in higher order by an order analysis means 24 based on a waveform measured the irregularity on the sidewall portion S of the pneumatic tire T along the circumferential direction to calculate the value of the small irregularity at this order, and then the defect in outer shape is decided if the value of the small irregularity exceeds an allowable value. Thus, a pneumatic tire T of which small irregularity of certain order exceeding the allowable value is repeatedly formed in the circumferential direction on the sidewall portion S can be easily and certainly rejected as a defective tire.

Abstract: Repeated small irregularity, i.e. defect in outer shape on a sidewall portion S of a pneumatic tire T is detected. An order analysis is performed in higher order by an order analysis means 24 based on a waveform measured the irregularity on the sidewall portion S of the pneumatic tire T along the circumferential direction to calculate the value of the small irregularity at this order, and then the defect in outer shape is decided if the value of the small irregularity exceeds an allowable value. Thus, a pneumatic tire T of which small irregularity of certain order exceeding the allowable value is repeatedly formed in the circumferential direction on the sidewall portion S can be easily and certainly rejected as a defective tire.

Abstract: A method and a device for inspecting a tire, the method comprising the steps of, in a rim assembly station (G) separated from an inspection station (K) having a tire inspector (58) installed thereon, forming a rim/tire assembly (44) in a setup by assembling one side and the other side rims (19) and (20) with an inspected tire (15) and, when an inspection is performed, transforming the rim/tire assembly (44) from the rim assembly station (G) to the tire inspector (58) on the inspection station (K), whereby a preparatory operation time in the tire inspector (58) can be shortened to shorten a cycle time.

Abstract: A method and a device for inspecting a tire, the method comprising the steps of, in a rim assembly station (G) separated from an inspection station (K) having a tire inspector (58) installed thereon, forming a rim/tire assembly (44) in a setup by assembling one side and the other side rims (19) and (20) with an inspected tire (15) and, when an inspection is performed, transforming the rim/tire assembly (44) from the rim assembly station (G) to the tire inspector (58) on the inspection station (K), whereby a preparatory operation time in the tire inspector (58) can be shortened to shorten a cycle time.