Bridgestone Corporation

Tokuhiro Murayama

Tomoyuki Kaneko

Takao Kokubu

Tsuneo Kobayashi

A method and an apparatus for inspecting appearance and shape of a subject body is provided. Installation cost and installation space are reduced, working efficiency is superior and judgement accuracy is high. A first picture taking structure takes a picture of a linear portion of a subject body lighted by a first slit light to obtain appearance data, and a second picture taking structure takes a picture of the same linear portion lighted by a second slit light to obtain shape data. The quality of appearance and shape of the subject body is judged based on the appearance data and the shape data.

Method and apparatus for inspecting appearance and shape of subject body

A tire configuration judging device according to the present invention comprises a light projecting (emitting) device, a photographing device, and a control device. The light projecting device irradiates slit light onto a bead portion of a tire. The photographing device photographs a slit image which is formed on the tire. The control device forms an image to be judged which represents an external configuration of the bead portion of the tire, by applying a 2-D coordinate conversion to image data for the slit image which is photographed by the photographing device. The image to be judged and a predetermined reference image are compared to each other by a comparing device such that quality of the tire is judged, and the tire is classified as a normal tire or an abnormal tire according to results of comparison.

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Kodaira, Japan

Tokuhiro Murayama