| 摘要 |
The invention relates to a flower vase which can be folded together and unfolded from a blank on two sides and is made preferably from thin-walled polypropylene sheet or other watertight, durable, flexible materials which can be folded from the flat sheet, according to instructions on the blank, in what is then a relatively simple manner by a user to form a three-dimensional figure, in this case a (slightly convex) truncated tetrahedron with an equilateral triangle as its base, and can be used as a flower vase or in some other way, the desired final shape being fixed without using any other attachment technique, means or material apart from this folding operation. Figure 1 shows a perspective drawing of the desired final shape from the blank. <IMAGE>
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