| 摘要 |
Thin walled containers, preferably beakers of plastics material, intended to be fitted together into rod-like stacks and which, in the stacks, form between the bottoms of adjacent containers, respective chambers to accommodate filling, for example powdered coffee, are provided in the peripheral wall with a stacking ring 15 and a holding ring 16. The holding ring 16 is constructed with two superposed annular parts 16a, 16b of which, in the stack, one annular part 16a of a container is opposite the other annular part 16b of the adjacent container. Constructed in the annular parts 16a and 16b are peripheral rows of cap-shaped projections of which the projections 19 of one peripheral row protrude towards the interior of the container and the projections 20 of the other peripheral row project towards the outside of the container. When the containers are fitted together in the stack, the projections 19 and 20 which are in an oppositely disposed relationship are impressed partially and resiliently into one another so creating a reliable grip which can be reliably and smoothly overcome by the application of limited axial force when the containers are to be moved apart in an axial direction. <IMAGE> |
