| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide an extendable bottle in which a surplus space generated in response to a reduction of drinking water within a container is eliminated by adjusting a size (a height) of the container, perform an efficient storing of the bottle, enable the bottles to be stacked on each other and further enable a storing location for the bottle to be eliminated. SOLUTION: A lid 3 is arranged at an opening part of a container composed of bellows. In the case that there are more than two containers, a pouring port 5 of another container can be inserted into an insertion hole 6 arranged at a bottom part 7 of a container comprised of bellows and then the containers can be stacked up on each other.</p> |
