Building plaything primarily for creating rolling tracks

DETAILED DESCRIPTION The object of the invention is to implement a building plaything and with the plaything rolling tracks of various shapes in optional forms can be implemented through fitting various building elements and accessory elements side by side and which plaything is free from the drawbacks above mentioned.
It has been recognized that, with a rolling groove shaped with slanting sides having an obtuse angle to one another, the problem above mentioned can be solved.
A further recognition of the invention is that, with the use of such a shape of the rolling groove, much more interesting combinations of assemblings can be made, than with the use of other shapes of the groove.
The invention is, therefore, a building plaything, primarily for creating rolling tracks comprising building elements connected in a known way, produced in module size or in any multiple thereof, a rolling groove is shaped on the building elements and directrix of the rolling groove is straight or arched and/or slanting, and the building elements are shaped as straight elements and/or arched elements and/or slanting elements, and the plaything, in a given case, comprising connecting elements to be joined to the building elements in the known way, the plaything furthermore comprising a rolling element wherein the rolling groove is shaped with slanting sides having an obtuse angle to one another.
The joining in the known way means for example that the connecting elements are supplied with a connecting point, in a given case, a connecting pin, and a nest to accept the point or pin, and the building elements are supplied with connecting points for being connected to one another and/or to the connecting elements and/or with a nest to accept the points.
The material of the building elements and the connecting elements is preferably plastic or wood.
The solution according to the invention will be hereinafter described and illustrated in the attached figures.