ASSEMBLY UNIT AND ASSEMBLY SET

Abstract: An assembly unit (1) particularly suited for a toy, but which may also be used for decoration and hobby use and other purposes. The particular advantage of the unit is that it may be assembled with any number of identical units (1), thereby creating coherent, continuous planes and three-dimensional structures. This is achieved by the assembly unit being shaped as a double cross with an elongated rectangular trunk (2), the width of which is one-fifth of the length of the trunk. On the trunk (2) is positioned four side branches (3), in pairs on each side of the trunk, at a distance equal to the width of the trunk from the ends (6) of the trunk, thereby forming an opening (7) on each side of the trunk, with a width equal to the width of the trunk. In a particularly expedient embodiment the assembly unit (1) has a height equal to the width of the trunk. This makes possible the assembly of very stable threedimensional combinations of structures, especially if the units are made of a resilient material such as blow molded polyethylene. The assembly units can be used for an assembly set consisting exclusively of assembly units of identical shape, but complementary assembly units (11, 12) are also possible. The assembly units may also be made of hard materials such as tile, brick and concrete to serve other purposes.

Description: ASSEMBLY UNIT AND ASSEMBLY SET FIELD OF INVENTION This invention relates to an assembly unit particularly suited -for a toy, which is shaped as an elongated rectangul trunk with four square side branches positioned in pairs on each side of the trunk. DISCUSSION OF PRIOR ART Assembly units for toys, decorations, hobby use and other uses are known in various embodiments. But only in a few cases can such units be assembled exclusively with exactly similar units in any number to become a coherent ' and continu ous (flat) surface, and out of these assembly units even fewer can also be assembled with identical units into stable three-dimensional structures. SUMMARY .AND OBJECTS OF THE INVENTION The assembly unit according to this invention is carac- terized by thewidth of the trunk being one-fifth of the length of the trunk; and the side branches being positioned with a spacing corresponding to the width of the trunkj and the width of each side branch, and the respective side branches also being positioned at this distance from the ends of_the trunk. The base plane of the assembly unit is a double cross with an elongated rectangular stem, the width of which is a module which is one-fifth of the length of the elongated rectangular stem. Attached to the stem are, on each side of the stem, two square side branches. The length and width of the squares are equal to the width of the stem. The squar are positioned on the stem with a spacing equal to the width OMPI WIPO of the stem and at a distance from the ends of the stem equal to the width of the stem. The four side branches, the two end parts of the trunk measured up to the side branches hereafter called end piec and the middle part of the stem between the side branches hereafter called the middle part, are congruent and for al practical purposes of the same size and shape as the space between the side branches, hereafter called the opening. Either of the two openi; gs on each assembly unit will, therefore, each be able to accept a side branch or end piece of a similar assembly unit when the assembly units are placed with their bases either parallel or perpendicula to each other. The openings of two assembly units placed perpendicular to each other may also be pushed close together over each other's middle part, resulting in still other possibilities of assembly. It is, therefore, possible to obtain a tightly assembled structure from any number of similar assembly uni according to the invention with both coherent flat surfaces and different three-dimensional structures of unlimited variations. A particularly expedient " embodiment of the assembly unit of the invention consists of an assembly unit which has its height, which is the distance between " the two paral lels base planes, equal to the width of the trunk. In this embodiment, the side branches, the end pieces, the middle part and the openings are for all practical purposes identi cal and of a cubical shape. This will highly stabilize the assembled structure, particularly when it is three-dime sional, and will significantly improve the use of the assem bly units for an assembly set of only similar assembly unit of the invention. In order to obtain a good stable assembly of -the assembly units, it is necessary to make the units with accurate dimensions; otherwise the units either cannot be assembled or will fall apart. In order to make easy assembly, the edg and corner used in the assembly must be suitably rounded, OMPI Λ, WIPO w and the units must be made of a fairly smooth material. When the units are used for toys, it is also important tha * the units can easily be disassembled. ϊn order to fulfil all the above requirements materials an shape must be carefully chozen and exact dimensions used. The units may suitably be made of a resilient material. Fo example, a thermoplastic such as polyethylene . . In such cas the cubes which make up the side branches, the end pieces and the middle parts can be slightly larger than the openings, in order to create a tension to improve the stability of the assembly. In order to increase the resili and also save material it is possible to produce the units hollow, for example by a process of blowmolding. Particula veil suited is the method of blowmolding which leaves the surface of the unit whole, because the units then can floa even after being submerged in water. This will expand the uses of the units to, for example, playing in the bathtub and on the beach. In order to improve the resilient cohesion of the units, it is possible to manufacture the units in such a way that the walls of the side branches, the end pieces and the midd parts, which are meant to be connected, bulge outwards in such a way that the units have their largest cross-sectiona area midway between the base planes. It is also possible to produce the units in such a way that the walls of the side branches, the end pieces and the middle parts, which are meant to be connected, have protrusions or patterns, for example ridges which are parallel with one or both of the sides of the walls, or small barbed undercuttings " that would improve the adhesion without making disassembly excessively difficult. The assembly unit may also be made of less resilient materials such as wood, tile, brick or concrete. In such case the cubical shapes which make up the end pieces, the side branches, and the middle parts can suitably be made somewhat smaller than the openings. In order to get a suit¬ able cohesion in these cases it is possible to place means OMPI to keep the units tight to each other in the narrow slits between the walls of the assembled units. These means may, for example, be flat pieces of cardboard, plastic foam, plastic film or similar materials, whith the shape of a square having the length of each side equal to the width of the trunk. In case the assembled structure should be saved, the means may be glue or cement. The described set of assembly units of the invention provides many variations of assembled patterns and struc- tures, particularly if a large amount of units in different colors are available. It is also possible that the set of assembly units may include assembly units of shapes different from that of the unit of the invention, suitably of the same height as the unit of the invention and including protrusions and openings of the same size and format as those of the unit of the invention. Some examples of such complementary units that may suitably be used to complete the structure when assembling rectangular plane patterns, are illustrated in the drawing. The invention, therefore, also relates to a set of assembly units in which these complementary units occur among the originally described units, the latter units constituting a significant amount of the units, for example in relation to area, amount or consequense. BRIEF DESCRIPTION OF THE DRA¥ING The drawing illustrates an assembly unit according to the invention. Figure 1 shows the unit from above. Figure 2 shows the unit in perspective. Figure 3 shows the unit from the side. Figure shows an alternative embodiment of the unit seen from the side. Figure 5 shows two units assembled at right angles to each other. Figure 6 shows a plane pattern of assembled elements seen from above. Figure 7 shows a different plane pattern of assembled elements seen from above. DESCRIPTION OF THE PREFERRED EMBODIMENTS FIGURE 1 shows the base plane of a unit 1 according to the invention. And in this Figure horizontally placed trunk 2 has four identical side branches 3 vhich are also identical to the two end pieces k of the trunk and the middle part 5 of the trunk. The side branches 3 have been placed at a distance which is equal to the width of the trunk 2 from the nearest end 6 of the trunk 2. The width of the trunk 2 is one-fifth of the length of the trunk 2. FIGURE 2 shows in perspective a particularly suitable embodiment of the unit 1, where the height of the unit is equal to the width of the trunk. Because of this relation the side branches 3 f the end pieces and the middle part 5 and the two openings 7 are all of the same cubical shape and size. This is also shown in FIGURE 3 vhich shows the unit 1 from the side. Whereas FIGURE 3 shows the ideal shape FIGURE h , which likewise .shows the unit 1 from the side, shows an example of the slightly bulging vails 8 vhich are meant to increase the resilient cohesion betveen the units 1 vhen the vails 8 are placed in the openings 7» FIGURE h further illustrates that the unit 1 may be compose of tvo . identical half parts 9 and.10. FIGURE 5 shovs two identical units 1 that have been assembled at right angles to each other, for example, as the beginning of a larger three-dimensional structure. FIGURE 6 shows the most common assembly of the units 1 to a coherent continous plane. Also shown are examples of complementary units 11 and 12 belonging to the set of assembly units, in the shape of an F and a T respectively. Such complementary units can also for all practical purpose be viewed as being in the shape of a number of connected cubes, with the length of a side of a cube equal to the width of the module, being the width of the trunk. In FIGURE 7 is shown another type of assembly of the units 1 creating a coherent plane. Here the units in the rows marked 13 are attached to each other, and the units in the rov marked 14 are attached to each other, but the two rovs 13 and 1 are not attached to each other but*only placed close to each other. In this situation and in other situations, units of other shapes could advantageously be used. The invention is not limited to the embodiments shovn in Figures 1 to 7» Also, units may be produced from other materials such as metal and plastic foam, and by other methods than those already mentioned. For example, by injection molding or thermo-forming. The units may also have shapes that depart somevhat from the shovn ideal shape and the units may possibly lack one of the vails of the bas planes, in vhich case they are more easily produced by thermo-forming. Also, the complementary units may be of shapes completely different from the shovn complementary units, for example provided vith heads and arms. The units according to the invention may also be used for other purposes than, the mentioned. Besides being used as a toyj the units of tvo different -colors may suitably be used for various types of games, for example •■ tick-tack- toe". The advantage of using the units in board games is that the units can be used both as the board and the ponds. The units may also be decorated and have glued-on pictures so that they can be .used as puzzles. As decorations the units can, in different combinations, be used in both stores and the home for, for example, Christmas decorations and mobiles. For artisan and hobby use, the units may be made of altogether different materials and be used for tiles, lawn tiles, shelves and brackets and so on. The units may also be used for educational purposes, from models of atoms to educational means for development of the sense of space, creativity, sense of combination and sense of color. Planes of assembled units may also be used for the purpose of insulation. In order to expand the use of the units of the invention as a toy, it is possible to adapt the size of the units to fit other assembly toys on the market, in such a vay that the other toys may be fitted--,--—— OMP to the opening of the units of the invention. In this vay combinations of different assembly toys can be made which mutually increase the value of each other. For example, the structure made of the combined assembly sets may be > able to float on vater because of the special properties of the units of the invention. OMPI IPO

Claims: CLAIMS 1. An assembly unit, particularly suited for a toy, vhich 2 is shaped as an elongated rectangular trunk vith four recta gular side branches positioned in pairs on each side of the k trunk, characterized by the vidth of the trunk being one-fifth of the length of the trunk, and the side branches 6 being positioned vith an opening corresponding to the vidth of the trunk and the vidth of each side branch; and the 8 respective side branches also being positioned at this same distance from the ends of the trunk. 2. An assembly unit according to claim 1, characterized 2 by the height of the unit being equal to the vidth of the trunk of the unit. ^ 3» An assembly unit according to claim 1, characterized 2 by the unit being made of a resilient material, for example a thermo-plastic material such as polyethylene, suitably h made hollow as for example by blovmolding or by fusion of tvo identical parts in vhich the opening betveen tvo side 6 branches may suitably be slightly narrover than the vidth of the side branches, the end pieces and the middle part. 4. An assembly unit according to claim 1, characterized 2 by the side branches, the end pieces and the middle part being slightly bulging outvard and convex on the vails k of its sides. 5« -An assembly unit according to claim 1, characterized 2 by the vails vhich are meant to be connected having protru¬ sions or patterns, for example ridges vhich are parallel vith one or both of the sides of the vails. 6. An assembly unit according to claim 1, characterized by the outer vail of the unit being impermeable to vater_. 7. An assembly unit according to claim 1, characterized by the material that the unit is made of being of a less « resilient or hard material such as tile, brick or concrete and in vhich the narrov slit between to side branches is preferably somewhat wider than the width of the side branch the end pieces and the middle part. 8. Assembly set comprising assembly units according to claim 1, characterized by the assembly set only comprising or essentially only comprising assembly units according to claim 1. 9» Assembly set according to claim 8, characterized by the assembly unit including means to get a suitable cohesio between the units, by placing the means, which may for example be flat pieces of cardboard, plastic foam, plastic film, glue and/or cement, in the narrow slits between the walls of the assembly units. 10. Assembly set according to claim 8, characterized by the set comprising complementary assembly units. OMPI IPO

Inventors: GRAM OLE
Applicants: GRAM OLE, GRAM OLE AS
Application year: 1982
Main classification: A63H33
IPC codes: A63H33