| 摘要 |
<p>A device for correcting the circumferential length of a metal ring comprising a drive roller (2) and a driven roller (3) to which a metal ring W can be fixed under proximate state, a correction roller (4) disposed between both rollers, a first displacement imparting means (10) for displacing the drive roller (2) and the driven roller (3) in the direction separating relatively when the metal ring W is fixed to the drive roller (2), the driven roller (3) and the correction roller (4), means (21, 22) for holding a specified interval between the drive roller (2) and the driven roller (3) when a displacement imparted by the first displacement imparting means (10) is released, a second displacement imparting means (27) for correcting the circumferential length of the metal ring W by displacing the correction roller (4) in a direction for elongating the metal ring W orthogonal to the displacing direction of the drive roller (2) and the driven roller (3), and means (19) for displacing the drive roller (2) and the driven roller (3) in the direction approaching each other when a displacement imparted by the first and second displacement imparting means (10, 27) is released.</p> |
