| 摘要 |
FIELD: mechanics; containers. ^ SUBSTANCE: proposed molded plastic cover of the container comprises, in fact, a cover basic sheet part with a skirt jointed thereto and running all over the edges of the cover basic part and allowing a contact with the open-top plastic container edges, a rim running along the cover basic part and separating the cover central flat part from its outer part on the cover rim opposite side. Note that the cover rim incorporates on or more crosspieces jointing the central flat and the outer parts together. ^ EFFECT: ease of repeated closing and stacking of covers. ^ 9 cl, 5 dwg |
