Bridgestone Corporation

Kabushiki Kaisha Toshiba

Katsutoshi Nakashima

Shigeo Nakamura

Takao Kokubu

Masaharu Oku

Takahiro Goto

Kazuhide Kinoshita

A tire uniformity measurement and correction apparatus capable of carrying out measurement and correction of tire uniformity efficiently without causing stagnation of a transfer line due to correction of the tire uniformity is provided. The apparatus comprises right and left transfer conveyors arranged in two parallel files for transferring tires; rim shafts provided at each corresponding middle position of the right and left transfer conveyors for supporting and rotating the tire by upper and lower rims; a rotary drum arranged between the right and left rim shafts capable of moving in a right and left direction to be pressed against the tire supported by one of the rim shafts for detecting load condition while rotating together with the tire; grinder mechanism provided on each of the right and left transfer conveyors at a position opposite to the rotary drum with respect to the transfer conveyor; and control means for controlling uniformity measurement by the rotary drum and uniformity correction by the grinder mechanism so that when the uniformity correction of a tire supported by one of the rim shafts is carried out, the uniformity measurement of another tire supported by another rim shaft is carried out.

Apparatus for measuring and correcting uniformity of tires

A tire load testing CT scanner includes a load applying mechanism for applying a load to a tire under a condition in which the tire is rotatably held, a radiation imaging device for obtaining radiation transmittance data of the tire cross section, a moving mechanism for relatively moving the radiation imaging device and the tire which is placed in a condition loaded by the load applying mechanism, in a direction along the circumference of the tire, a drive control unit for controlling the drive of the load applying mechanism, the radiation imaging device, and the moving mechanism, and an image formation and processing unit for forming an image, based on the transmittance data supplied by the radiation imaging device.

Tire load test CT scanner

Growing community of inventors

Hachiooji, Japan

Katsutoshi Nakashima