| 摘要 |
PROBLEM TO BE SOLVED: To support safely and easily a drum on which a string body is wound, on a roller of a drum support apparatus.SOLUTION: In a drum support apparatus 1, a pair of first rollers 20 are arranged to face each other with spacing therebetween in a first direction which is horizontal and are pivotally-supported to be rotatable. A second roller 30 is arranged along the first direction at a position with spacing with respect to the pair of the first rollers 20 in a second direction which is orthogonal to the first direction and horizontal, and is pivotally-supported to be rotatable. A first drive mechanism 50 reciprocates each of the pair of the first rollers 20 in the first direction. A second drive mechanism 60 reciprocates the second roller 30 at lest in a vertical direction or in a third direction including a component of the second direction. |
