Patent attributes
There are provided an inspection method of tire uneven marks capable of judging defect of three-dimensional form of the mark in a higher reliability without depending on a brightness distribution image of unevenness, and an inspection apparatus of tire uneven marks. The inspection method of tire uneven marks comprises a step of measuring heights of unevenness inclusive of marks to be inspected with respect to each area element in a predetermined tire surface region to acquire unevenness distribution data, a step of specifying a tire surface portion corresponding to a mark model in the tire surface region from data of three-dimensional form of a mark model previously prepared as a template of the each mark and the above acquired unevenness distribution data, and a step of determining a coincidence between the unevenness distribution data of the specified tire surface portion with respect to the each mark and data of three-dimensional form of the mark model to judge an acceptance of the three-dimensional form of the mark based on the coincidence.
