| 摘要 |
PROBLEM TO BE SOLVED: To accurately obtain precise tire uniformity since immediately after switching from a normal rotation of a tire to a reverse rotation thereof is conducted, in a tire uniformity measurement. SOLUTION: A tire uniformity testing device 1 of the present invention comprises: a drum mechanism 6 for rotatably supporting a drum 5 and for being capable of pressing a tire T mounted on a spindle shaft 3 against an outer peripheral surface of the drum 5; and a pneumatic circuit 7 for supplying compressed air to the tire T. The drum mechanism 6 is configured to be capable of causing the drum 5 to back away while maintaining a contact state between the drum 5 and the tire T, switching the rotation of the tire T from rotation in one direction to rotation in the other direction, and then, advancing the drum 5 to apply load to the tire T. The pneumatic circuit 7 is provided with air outflow regulation means 20 for regulating inflow of air into the tire T according to backward and forward movement of the drum 5, when the rotation of the tire T is inversely performed from rotation in one direction to rotation in the other direction. COPYRIGHT: (C)2013,JPO&INPIT |
