fig1 and 5 contain lattice plates 2 having a plurality of holes and embracing a cubical area . this closed space accomodates cubical movable elements 1 thereby plates 2 serving as a cage on border and a guiding inner surface . the openings thereon enable moving and observing movable elements 1 . said movable elements 1 are formed either by the flexible square plates 5 or by a central element 3 and flexible inserts 4 and are arranged inside the space bordered by the flexible lattice plate 2 . the movable elements 1 are essentially cubical , but a little convex . while assembling they become a little flattened and compressed , consequently they tend to slightly flexibly expand against each other and the lattice plates 2 , whereby under the effect of frictional force developing between them they keep their position against their own weight and do not fall or slip forward blank place . the section of the movable elements 1 snapped from six flexible square plates having exactly the same formation according to the fig6 can be seen on the fig7 . on the contacting surface of the flexible cubical plates 5 inclined at the angle of &# 34 ; α &# 34 ; ( in case of a cube α = 45 °) slots and ribs are alternatingly arranged , which , form complementary pairs and can be snapped into each other involving flexible deformation causing no breaking or cracking . the flexible square plates 5 are determining mutually each other and form a quasi - rigid cubical structure without any clearance . as it can be seen on fig6 on the connecting contact surfaces of the flexible plates 5 a hollow 6 can be arranged , which facing to each other form slot facilitating thereby the release or disassembly . the lattice plates 2 can be formed and assembled using the same principle . the advantages of the mentioned constructional solution are as follows : one type of components can be utilized for assembling said movable element 1 ; the flexible square plate 5 is thin with inconsiderable material needs ; the six flexible square plates 5 forming the movable element 1 can be of six different colours , there is no need for post - colouring , printing in order to distinguish the movable elements 1 ; quick assembling by means of snapping in without the use of any adhesive , simple disassembling . the above mentioned advantages ensure together economical , practical manufacture as well as the reliable quality . the plates 5 of the movable elements 1 can be provided with a design or colour , that e . g . realizing a particular arrangement a characteristic appearance e . g . that of a vasarely style picture can be formed . this renders considerable help for realizing a prescribed or wanted configuration besides the aesthetic quality . the use of the plaything according to the invention is described as follows : taking into hand a plaything being in a random arrangement and knowing the spatial pattern to be realized by rearranging the movable elements 1 one of the movable elements 1 can be slided in the direction of the blank room by overcoming the developed frictional force by fingers through the openings of the lattice plates 2 . the movable elements 1 can be moved from three directions of the space towards the blank room available on the tips , sides or edges . the mentioned moving can be complete or partial considering the lines and columns of elements 1 . if the blank room can be found on an edge or corner , in this case moving can take place only on the surface in three directions . if the blank room can be found on any of the sides of the plaything , in this case moving in two directions can take place on the surface ( in two directions ) while the third direction moving can be realized inside the plaything . a blank or free room can be realized for example on the edges or on the plates between the contacting surfaces of the two determined movable elements 1 at some opening of the lattice plates 2 , that the mentioned contacting surfaces are moved into the middle of the openings whereby a blank room is formed . to obtain a blank room at a corner , the movable element 1 being there will be moved toward the blank room on the free surface perpendicular to the direction of the moving . at changing the place movable elements 1 should be caused to move up to impact , in this case the lattice plates 2 and movable elements 1 provide guide to each other . by using the above mentioned moving methods any spatial relation , pattern can be realized between the distinguished movable elements 1 , so does the aimed task can be solved . the constructional formation of fig7 enables creating besides the cube , various spatial figures joint by polyhedrons by means of connecting adequately shaped flexible plates in order to form spatial geometrical demonstration means , figures showing the structure of the material , other , scientific and educational means , objects and playthings with decorative effects . depending on the various polyhedron types , the angle &# 34 ; α &# 34 ; means the half of the angle included by two walls of the polyhedron . for example , in the case of a dodecahedron ( consists of 12 pcs pentagons ) β = 116 °, 56 °, α = 58 °, 28 °. fig6 shows the form of said hollow 6 enabling disassembling the logical plaything according to the invention or the various spatial figures joint by polyhedrons in order to change initial pattern by means of a new assembling order between the symbols and colours of the proper formed flexible plates 5 bordering the polyhedrons . by this means , new tasks can be created , other spatial figures can be formed by joining polyhedrons , new colour effect and formation can be achieved . fig9 to 11 show the preferred embodiment of the plate 2 , and this at the same time represents the coupling means according to another aspect of the invention . the edges of the lattice plate 2 and another plate 28 of the same geometry abut to each other along a bearing surface 26 laying in the median plane 10 of the planes characteristic to plate 2 and plate 28 . the coupling means contains slots 12 and ribs 14 arranged alternatingly along the plates 2 joining angularly to each other , in the present case they join perpendicularly to each other . the slots 12 sink perpendicularly to the plain of the plate 2 and extend at least partly on the bearing surface of the plate 2 . the slot 12 has a second surface 16 extending to the bearing surface 26 , which is perpendicular to the plane of the plate 2 and parallel with the plane of the adjoining plate 28 . the ribs 14 protrude from the bearing surface 26 parallel with the direction of the plane of the plates 2 , 28 , their height can be accommodated in slots 12 . the length of the ribs 14 is less than the relating slots 12 . the ribs 14 have surfaces 18 in joint position contacting with the surface 16 of the slots 12 , and to the surface 18 inclined endfaces 20 are connected . the edge at the joint of surfaces 18 and endfaces 20 can be rounded . the edge of the surface 16 of the slots 12 at the bearing surface 26 can be also rounded . the external edge of the plates 2 and 28 is bevelled at their juncture , but not necessarily . in released position approaching plate 28 ( see fig1 , outline with dashed line ) in direction of arrow 24 to the plate 2 the ribs 14 impact to the bearing surface 26 . the same will take place , if plates 2 and 28 are approached to each other in a direction perpedicular to median plane 10 . however , thanks to the slope of the endface 20 and to the rounded form of the contacting edges of surfaces 16 and 18 at snapping the side plates 2 and 28 will be deflected laterally , perpendicularly to their plane and take an undulated form corresponding to the alternating arrangement of the ribs 14 and the slots 12 , meanwhile the ribs 14 snap into the slots 12 . the greater is the rate of the depth and the length of the slots 12 with respect to ribs 14 , the easier is realized this snapping . after snapping the edges of the plates 2 and 28 will straighten and flexible fit comes into being between them . the strength of the connection is influenced by the length of the ribs 14 and the slots 12 , the extent of the rounding - off , the rigidity of the plates 2 and 28 , ( more exactly their flexibility ), and the size of the overlapping -- as it can be seen on fig1 -- which can be measured in the plane parallel with the median plane 10 . it is appreciated that the coupling means shown on fig9 to 11 , can be applied for joining angularly , especially perpendicularly the edges of any of the flat plate type bodies , if at least the edges of the plate can be flexibly corrugated perpendicular to the plane of the plate . by the aid of this structure for example , boxes , walls , and folding - screen can be formed . this coupling means makes possible to separate from each other side plates 2 of the plaything according to the invention , to change or replace the movable elements 1 , or their pattern or order or orientation can be rearranged . hereby any start position can be simply formed , the object and the process of the play can be changed .
the invention relates to spatial figures , figural arrangement or logical plaything for improving stereoscopic vision comprising bordering lattice plates in a parallelepipedon form , wherein movable elements being of nearly similar form to the enclosed space are accommodated . the number of the elements are one piece less than the elements having room in the available space . movable elements are distinguished by symbols , colours . movable elements are compressed while assembling and pressing flexibly to each other and the lattice plates . movable elements keep their spatial position against their weight . a coupling means is also disclosed for joining up angularly the flexible plates , which coupling consists of ribs parallel with the plane of the plate and perpendicular slots . these elements are arranged on the edges of the plates and alternatingly can be snapped to each other .