| 摘要 |
A method of attaching a press-in flange having a tubular portion and a horizontal portion to a tubular mouthpiece of the top plate of a drum or like container by providing a gasket between the tubular portion of the flange and an upward annular projection on the flange horizontal portion, forcing the flange having the gasket thereon into the tubular mouthpiece from below, and outwardly bending the upper end of the flange tubular portion to hold the upper end folded over the upper end of the mouthpiece while bringing the annular projection into intimate contact with the inner surface of a curved portion between the upper and lower ends of the mouthpiece to confine the gasket in a space defined by the annular projection, the curved portion, the lower end of the tubular portion and part of the horizontal portion. |
