| 摘要 |
The sample of use relates to a building plaything for creating primarily rolling tracks out of which building plaything several types of rolling tracks can be made through utilizing building elements of various forms. The building plaything comprising building elements, connected in the known way, in module size or in any multiple thereof, primarily for creating rolling tracks. Upon the building elements (1) a rolling groove (3) with slanting sides (4) at a preferably obtuse angle to one another is shaped, the directrix (5) of said rolling groove (3) is straight or arched and/or having a slanting form. The plaything, in the given case, comprising connecting elements (2) to be joined to the building elements (1) in the known way.
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