| 摘要 |
PROBLEM TO BE SOLVED: To perform storage and transportation in a stable state and improve handleability of a centering belt.SOLUTION: A core material 10 extends to a predetermined length with a uniform cross section. The length of the core material 10 is the same as the width of a centering belt 12. The core material 10 is formed of a single member. The cross section of the core material 10 is formed of an upper side 1002 and a lower side 1004 in parallel to each other and a pair of sides 1006, 1008 connecting both ends of the upper side 1002 and both ends of the lower 1004. A width W of the core material 10 which is a distance between the pair of sides 1006, 1008 and a height H1 of the core material 10 which is a distance between the upper side 1002 and the lower side 1004 are formed at a ratio of 3:1-4:1. A centering crosspiece 12B is wound around the centering belt 12 toward the core material, and thereby a storage structure of the centering belt is formed. |
