| 摘要 |
A plastic chime ring capable of being attached to a knock-down drum without the use of adhesives, seaming or welding is disclosed. The chime ring comprises an annular upper portion, an outer ring portion and inner ring portion wherein the inner and outer ring portions define a U-shaped opening throughout the circumference of the ring and at least one ring portion has a locking mechanism on its inner edge. The outer ring portion includes a flange that allows the chime ring and drum to be removed from an attachment apparatus without the chime ring and drum being separated from each other. The inner ring portion includes a curved edge on its outer surface that guides the rim of a knock-down drum into the U-shaped opening. Apparatus for attaching the chime ring to a knock-down drum is disclosed. The apparatus includes an adjustable shaft, a narrowed mandrel and a collapsible guide.
|
