| 摘要 |
A cup assembly includes two sleeves, a bottom element, a ring and bosses. The sleeves are made of paper while the ring and bosses are made of a plastic material. The first sleeve is made with a lower edge and an upper edge. The bottom element is attached to the lower edge of the first sleeve. The ring is formed on the upper edge of the first sleeve. The bosses are formed on the first sleeve against the ring. The second sleeve is made of paper with a lower edge and an upper edge. The lower edge of the second sleeve is located against the bosses as the second sleeve is provided around the first sleeve. Thus, an adequate insulating space is defined between the first and second sleeves. |
