EP3094389A1

EP3094389A1 - Building block system

Info

Publication number: EP3094389A1
Application number: EP14820883.8A
Authority: EP
Inventors: Siegfried Uhrich
Original assignee: Individual
Current assignee: Individual
Priority date: 2014-01-16
Filing date: 2014-12-23
Publication date: 2016-11-23
Also published as: WO2015106942A1; DE102014000472A1

Abstract

The building block system comprises a plurality of building blocks (1) in the form of a polyhedron and with substantially smooth side faces (3, 5). Each building block (1) has at least one matrix field (7) with a plurality of planar, magnetically hard magnetic sections (9) arranged about a centre point (13) of the matrix field (7) on at least one of the side faces (3, 5) of the polyhedron, in particular on at least one pair of mutually opposite side faces of the polyhedron. Planar, magnetically soft yoke sections (11) are provided around the centre point (13) of the matrix field (7) between adjacent magnetic sections (9). The magnetic sections (9) and the yoke sections (11) make it possible to magnetically lock building blocks (1) stacked one on the other in any desired three-dimensional arrangement.

Description

Bauklotzsystem

description

The invention relates to a building block system comprising a plurality of building blocks, in particular for use as a children's toy.

From WO 94/27696 A1, for example, cuboid toy building blocks made of plastic are known, whose flat side surfaces are provided with arranged in a grid magnetic areas. The individual magnetic areas each have a central magnetic pole, the one of

annular second magnetic pole of opposite magnetic polarity is enclosed. On opposite side surfaces

arranged magnetic areas have different magnetic polarity, so that attract the magnetic areas of stacked building blocks each other and fix the blocks together. Since the polarities of the magnetic areas in the grid on each other

on the opposite sides of the building blocks, must when

Stacking of the building blocks to be paid attention to the assignment of oppositely polarized side surfaces, since the same direction polarized magnetic surfaces repel in the stack. Infants can therefore play only limited with blocks of the known system, as far as they are not yet able to apply the necessary for magnetic fixation assignment rules. In addition, stick in the known system

only oppositely polarized magnetic areas together. Since the magnetic areas are relatively small in relation to the size of the side surfaces of the building blocks, building blocks stacked on one another must be aligned relatively accurately relative to one another, if one should adhere to one another. Again, this is the use of the well-known

Blocks as toys for infants detrimental. It is an object of the invention, a Bauklotzsystem with magnetic

To create mutually fixable blocks, in which the blocks magnetically locked together can be stacked without having to pay attention to the assignment of nebeneinanderzulegender side surfaces of the blocks and / or the exact alignment of the blocks, as is desirable, for example, for toddler-suitable toy.

Basis of the invention is a Bauklotzsystem of several building blocks, each of which at least a pair of opposing, im

Has substantially flat side surfaces, in particular in the form of a

Cuboid or a straight prism, each building block having at least one matrix array with a plurality, around a center of the matrix field

arranged, flat, magnetically hard magnetic regions on at least one of the side surfaces, in particular on the at least one pair of opposing side surfaces.

The above object is achieved in that the matrix field around the center between each adjacent

Magnetic areas has flat, soft magnetic yoke areas.

The magnetically hard magnetic areas are permanently magnetic and adhere to the soft magnetic field regardless of their polarity

Yoke regions. Since it is flat magnetic areas or yoke areas, sufficient holding forces arise between stacked

Building blocks even if the magnetic areas and yoke areas should be insufficiently aligned with each other. Due to the

alternating arrangement of the magnetic regions and the yoke regions always at least partially overlap the magnetic regions also the

Yoke portions.

The hard magnetic magnet areas and the soft magnetic ones

Yoke areas are made of ferromagnetic material or contained in a, for example, plastic carrier material ferromagnetic particles. Soft magnetic material is material, as provided for example in electrical machines or the like for the construction of magnetic circuits. The

Coercive field strengths of the soft magnetic material are

conveniently below 300 amperes per meter (A / m).

By contrast, hard-magnetic materials can be permanently magnetized and, for example, have a coercive force of more than 10 kA per meter.

The building blocks have a stackable basic shape with at least one pair of opposite, substantially planar and mutually parallel side surfaces, preferably in the form of a polyhedron with substantially planar side surfaces, e.g. a cuboid or cube or a straight prism. However, straight cylinders are also suitable, for example, with circular base surfaces or straight truncated cone shapes with circular base surfaces.

The magnet areas and the yoke area alternate each other around the

Center of the matrix field from each other. On top of each other to be stacked blocks can therefore be rotated around the center of the matrix field against each other, so that blocks can be stacked at an angle to each other, which promotes the game options.

In a preferred embodiment, the magnetic areas and the

Yoke regions of the matrix field of at least one of the side surfaces,

in particular, the matrix fields of the at least one pair of opposing side surfaces each arranged in pairs rotationally symmetric about the center around. The number of pairs out

Magnetic regions and yoke regions determine the angle increments around which the stacked building blocks can be magnetically locked against each other. Conveniently, the angle increments are selected so that the blocks are rotated in 90 ° -shutten to each other latched. This is particularly advantageous when the rotationally symmetric Side surface having matrix field is square or has an integer multiple of the aspect ratio and along the longer side a number of matrix fields corresponding to the integer number are provided side by side. This allows longitudinally staggered stacking of the building blocks, as well as stacking transversely to each other longitudinally extending blocks. It is understood, however, that the side surface carrying the matrix field can also be circular.

In order to be able to use magnet areas and yoke areas that are as large as possible, the magnet areas and the yoke areas of the matrix field preferably have sector-related sector shapes. Preferably, the magnetic areas and the yoke areas in this context in

Essentially the same shape and size.

In another preferred embodiment, the magnetic regions and the yoke regions of the matrix field of at least one of the side surfaces, in particular the matrix fields of the at least one pair of opposing side surfaces in two mutually transverse arrangement directions are arranged alternately in pairs in a checkerboard pattern. In such a matrix field exists a center, possibly also several centers around which magnetic areas and yoke areas alternate with each other. The number of magnet areas and the yoke areas is the same in at least one of the two arrangement directions, in particular in both arrangement directions, which facilitates the alignment of the matrix fields when stacking the building blocks. Expediently, the magnetic regions and the yoke regions of the matrix field have a rectangular shape, in particular a square shape, and preferably the matrix fields have the same shape and size, since, in this way, sufficiently large locking forces can be achieved even with stacked structural blocks.

Especially in the last-mentioned embodiment, with magnetic regions and yoke regions arranged in the manner of a checkerboard pattern, it is possible for angular blocks to be stacked with respect to one another in special angular positions come that magnetic areas of the same polarity come to lie one above the other, which reduces the detent force with which the building blocks adhere to each other, or possibly cancel. In order to avoid this, it is provided in a preferred embodiment that the magnet areas are magnetized in mutually parallel magnetization strips with alternating polarity transverse to the magnetization strips. The spacing of adjacent magnetization strips of different polarity is comparatively small, in particular substantially smaller than the dimensions of the magnetic region which they form. If the distance oppositely polarized magnetization stripes corresponding misalignment stacked blocks tolerated, as can be assumed in suitable for toddlers Bauklotzsystemen, it is sufficient to move the blocks to the distance of adjacent magnetization strips and align in this way oppositely polarized magnetization strips of stacked blocks to each other and to lock together magnetically.

Coincident polarized magnetization strip pairings can be avoided particularly well if the magnetization strips of the

Magnetic regions of the matrix field with respect to the center in adjacent magnetic regions rotationally symmetrical to each other, since then the same direction polarization of the magnetic strip pairing can be changed by slightly rotating the blocks against each other in an opposite polarization. In the case of magnetic regions arranged in the manner of a checkerboard pattern, the magnetization strips, relative to the center of the matrix field, expediently extend radially obliquely to the arrangement directions and in particular in the direction of an angle bisector between the arrangement directions. This measure also makes it possible to move stacked building blocks not only around the width of a matrix field but also around the width of a magnetic area or a yoke area.

In a preferred embodiment, the magnetic areas and the

Yoke areas of the matrix fields at least of the opposite Side surfaces arranged in the plan view in identical patterns.

Such designed blocks can be without reducing the

Stack locking forces in largely arbitrary spatial position.

The building block preferably has a base body of non-magnetic material, wherein the magnetic areas expediently consist of permanently magnetized foil. The film may be biased or magnetized after attachment to the body. It is understood that, instead of the film, it is also possible to use a layer applied to the base body in another way, for example a printed layer with hard-magnetic properties. The yoke areas may consist of a foil containing soft magnetic particles of ferromagnetic material. Again, instead of the film, an otherwise applied coating may be provided.

In one variant, however, the building block may also have a base body made of plastic material into which the magnetic areas and / or the

Jochbereiche forming ferromagnetic particles are embedded. It is expediently an injection-molded body, for reasons of weight reduction preferably a hollow body. It is understood that the magnetic areas and the yoke areas can be manufactured in two production steps. Alternatively, the injection molded body may be made of a unitary material forming either the magnetic areas or the yoke areas, while the other type of area may be retrofitted, for example, in the form of a film label or film

Imprint or the like can be applied.

In a further variant of the building blocks is provided that at least the matrix field having side surfaces of the building blocks a the

soft magnetic yoke regions forming support layer of a soft magnetic material, on its outwardly facing surface at least in the hard magnetic magnetic regions of

Matrix field a permanent magnetized or permanent magnetizable Wear layer. The carrier layer extends in this variant over the back of the magnetic regions of time, which in particular at

Embodiments with strip-shaped magnetized magnetic regions is advantageous since the carrier layer in this way bridges adjacent magnetic strips in a yoke-like manner and thus reduces the magnetic resistance between adjacent magnetic strips.

The blocks may be formed as a hollow body whose wall forms the carrier layer. In particular, when the wall of the hollow body is designed as a blank part made of soft magnetic metal sheet, the blocks can be particularly inexpensive and easy to manufacture.

Conveniently, the blank part is a settlement of several

Side surfaces of the hollow body formed. This has the advantage that the blank part can be coated as a development with the permanently magnetized layer before it is bent along predetermined bending lines to the hollow body. It is understood that the permanently magnetized layer applied in the already pre-magnetized state on the carrier layer, for example, can be glued. Alternatively, however, the magnetization can also be applied after the application of the permanently magnetizable layer, e.g. be magnetized strip-shaped. The magnetization takes place expediently in still unwound blank part, ie before forming the hollow body.

Comparatively large magnetic regions and yoke regions can be achieved if the matrix field extends substantially over the entire width and / or length of the side surface. The center of the matrix surface is expediently in the longitudinal center and / or the transverse center of the side surface.

In the following the invention will be explained in more detail with reference to a drawing. Hereby shows:

Figure 1 a-1 c cuboid blocks with rotationally symmetrical Matrix fields in different spatial arrangement relative to each other;

Figure 2a-2c cuboid blocks with checkerboard pattern-like

Matrix fields in different spatial association with each other; a detail of a magnetic area in the matrix fields of the building block of Figure 2a; a variant of a checkerboard pattern-like matrix field, as can also be used in the building blocks of Figures 2a-2c; prismatic building blocks in a different spatial arrangement relative to each other; a schematic representation of the overlapping areas of a checkerboard pattern-like matrix field and a rotationally symmetric matrix field of the building blocks of Figures 4a to 4c; the development of a deformable to a hollow body blank part of soft magnetic metal sheet and a sectional view of the blank part, seen along a line VII-VII of Figure 6.

Figures 1 a, 1 b and 1 c show a suitable for infants Bauklotzsystem with rectangular cuboid blocks 1, the flat side surfaces 3, 5 each magnetically attractive matrix fields 7 have. When stacking the building blocks lock the matrix fields of superimposed side surfaces 3, 5, the blocks 1 to each other, so that even untrained Persons, such as infants, towers or walls can be stacked.

The side surfaces of the blocks have different surface shape. For example, the front-side side surfaces 5 are square, while the elongated side surfaces 3 have an identical rectangular shape. It is understood that the front-side side surfaces 5 may also have a rectangular shape and accordingly adjacent side surfaces 3 are different.

The matrix fields 7 of the building blocks 1 are identical in plan view, wherein the side surfaces 5 each have a matrix field, while the length of the

Side surfaces 3 with a number of several, here two matrix fields 7, are provided.

Each of the matrix fields 7 comprises a plurality of pairs of flat magnetically hard magnetic regions 9 and flat, soft-magnetic yoke regions 11, which are arranged rotationally symmetrically about a center 13 of the matrix field 7. The magnetic regions 9 and the yoke regions 11 are arranged in pairs and alternate around the center 13 in FIG

Circumferential direction. The magnetic regions 9 are permanently magnetized in their outer surface, for example, in mutually parallel magnetization strips having alternately different polarity, so that the yoke regions 1 1 adjacent stacked building blocks 1 magnetically attracted and the building blocks 1 are locked together.

Since the building blocks 1 are provided on all sides with plan fields identical to those in plan view and rotationally symmetrical to the center 13, the building blocks 1 can be stacked in any desired spatial orientation without magnetic fields 9 which are polarized in the same direction and thus repel each other. To this, too

illustrate, are the matrix fields 7 in the figures of Figures 1 a to 1 c with virtual, ie not present in practice markings 15th provided to show the angular orientation of the matrix field 7 with respect to an axis (not shown) passing through the center 13 of the matrix field 7. The blocks of Figures 1 b and 1 c are based on the building block 1 of Figure 1 a about the center axes of their square

Side surfaces 5 rotated by 90 °. Nevertheless, lie as through

Assignment lines 7 is indicated when juxtaposing

Side surfaces 5 each magnetic regions 9 and yoke regions 1 1 opposite each other. The same applies to the juxtaposition of the side surfaces 3. The side surfaces 3 can be stacked completely or even partially overlapping and can also be stacked at a right angle to each other. Likewise, side surfaces 5 can be stacked locked on side surfaces 3.

In the exemplary embodiment of FIGS. 1 a to 1 c, the magnet regions 9 and the yoke regions 1 1 have a sector shape and taper towards the center 13. FIGS. 2a to 2d show a variant of the building block of FIGS. 1a to 1c. Equivalent components are referred to in this embodiment as well as hereinafter to be described embodiments with the reference numbers of Figures 1 a to 1 c and provided to distinguish with a letter. To explain the structure and the

Operation is related to the foregoing description

taken. While in the embodiment of Figures 1 a to 1 c, the pairs of the magnetic regions 9 and the yoke regions 1 1 are limited to a sector of 90 ° of the matrix array 7, extending in Fig. 2a to 2c, the pairs of magnetic regions 9a and yoke regions 1 1 a of the matrix fields 7a of the building blocks 1a over a sector of 180 ° in each case about the center 13a of the matrix fields 7a rotationally symmetric around. The pairs of the magnetic regions 9a and the yoke regions 1 1 a are in this case in two in the direction of

Quad corner of the building block 1 a extending arrangement directions arranged like a checkerboard.

Figures 2b and 2c in turn show the building blocks with respect to the center 13a of the sides 5a at 90 ° to each other angularly offset, as can be seen on the virtual markers 15a. While the building block 1 a of Figure 2b when applying its side surface 5a on the side surface 5a of the building block 1 a of Figure 2a is applied to a yoke portion 1 1 a, lie in the orientation of Figure 2c magnetic areas 9a one hand and

Jochbereiche 1 1 a on the other hand, the adjacent side surfaces 5a of the two blocks 1 a opposite. In order nevertheless to ensure that the adjoining matrix fields magnetically lock each other, the magnet areas 9a are permanently magnetized on their surface in mutually parallel lines of alternating polarity, so that line-shaped north poles N and line-shaped south poles S alternately follow one another, as shown in detail in FIG. 2d is. The distance of

Line magnetization is compared with the dimensions of the

Magnetic areas 9a, very small and the line magnetizations are oblique to the arrangement directions of the checkerboard pattern, here in the direction of the bisector of the arrangement directions. Run in this way, as the assignment line 17a of Fig. 2c shows the

Line magnetizations of the superimposed magnetic regions 9a parallel to each other, so that opposing north and south poles can attract and the blocks 1 a can lock each other magnetically in the angular position to each other.

It is understood that in the embodiment of Figures 2a to 2d, the blocks 1 a in any association with each other can be stacked magnetically locked.

FIG. 3 shows a variant of a matrix field 7b which can be used in the embodiment of the building blocks system of FIGS. 2a to 2d, with pairs of magnetic areas 9b and yoke areas 11b arranged around the center 13b in a checkerboard pattern. The pairs enclose the center 13b in more than one row of rings, here two rows of rings. The magnet areas 9b are again arranged in line magnetizations running diagonally to the arrangement directions of the checkerboard pattern according to FIG. 2d, the checkerboard pattern being mirror-inverted to one of FIG Center 13b crossing diagonal line is.

Figures 4a, 4b and 4c show a further variant of the block system, in which the blocks 1 c have the shape of a straight prism with square or rectangular side surfaces 3c and triangular, in particular equilateral triangular, frontal side surfaces 5c. The front-side side surfaces 5c are provided with a rotationally symmetric matrix field, as has been explained with reference to the figures 1 a to 1 c. The matrix field 7c again comprises pairs of

Magnetic regions 9c and Jochbereichen 1 1 c, which are arranged alternately around the center 13c of the matrix array 7c around. In the present case, three pairs of each tapering towards the center 13c

Magnetic regions 9c and yoke regions 1 1 c provided.

The square or rectangular side surfaces 3c of the building block 1c are provided with checkerboard pattern-like matrix fields 7c, as explained with reference to FIGS. 2a to 2d or 3. The matrix fields 7c of the side surfaces 3c in turn consist of pairs along the

Arrangement directions juxtaposed magnetic regions 9c and yoke regions 1 1 c around the center 13c of these matrix fields around. The matrix fields of the front-side side surfaces 5c are identical in plan view; The same applies to the matrix fields 7c of the side surfaces 3c.

Figures 4b and 4c show blocks 1 c, which are rotated by 120 ° about an axis passing through the center 13c of the side surfaces 5c against each other, as the virtual markers 15c of these side surfaces show. The assignment lines 17c clarify that in each of these

Rotational positions, the front-side side surfaces 5c can be stacked such that the magnetic regions 9c completely overlap with the yoke regions 1 1 c when the side surfaces 5c are aligned with each other.

FIG. 5 shows the conditions in which the end-side side surface 5c of a first building block 1c acts on the square or rectangular shape Side surface 3c of another building block is launched. Due to the differently structured matrix fields, the magnetic regions 9c of the surfaces 5c overlap only partially with yoke regions 1c of the side surface 3c, or the magnetic regions 9c of the side surface 3c overlap only partially with yoke regions of the side surfaces 5c. However, it can be seen that, despite the different configuration, a considerable proportion of the magnetic regions of one matrix field overlap with yoke regions of the other matrix field, as shown by the dot hatching of the overlapping regions in FIG. Despite different structure of the matrix fields results in a sufficient locking effect. It is understood that the locking effect can be improved if the blocks have 1 c both at their front side surfaces 5c as well as at their square or rectangular side surfaces 3c uniformly structured matrix fields, ie

for example, exclusively with matrix fields of the variant explained with reference to FIGS. 1a to 1c or the variant explained with reference to FIGS. 2a to 2d.

The building blocks explained above have a basic body made of non-magnetic material, for example wood or plastic, which on all sides has magnetic matrix surfaces on all sides

Coupling stacked building blocks is provided. The magnetic regions and yoke regions can be integrally formed on the base body or be formed from plastic films containing hard magnetic particle material or soft magnetic particle material. It is understood that the magnetic regions or yoke regions can also consist of a liquid phase applied, for example, printed coating material. The magnetic areas and yoke areas may also be in the form of labels which are adhered to the side surfaces of the body.

Alternatively, however, the basic body can also consist of plastic material into which the magnetic areas and / or the yoke areas form

ferromagnetic particles are incorporated. Such a base body can be made of the ferromagnetic plastic material, for example in Injection molding process can be produced. The magnetic areas and the yoke areas can be made in separate injection molding steps

hard magnetic or soft magnetic materials are poured. It is understood that the main body can also consist of a uniform hard magnetic or soft magnetic material, while the other type of area subsequently by

Coating or labeling or the like can be attached. Conveniently, the base body is designed to save weight as a hollow body, so that blown into a shape

Offer basic body.

The matrix fields expediently extend essentially over the entire width and / or length of the side surfaces of the main body, wherein the centers of the matrix fields are expediently located in the longitudinal center and / or the transverse center of the side surfaces.

FIGS. 6 and 7 show, at 1 d, a hollow building block whose walls form the side surfaces 3d, 5d as a support

Blank part 21 comprise a soft magnetic metal sheet. The blank part 21 takes over the carrying and Aussteiffunktion of the building block and is bent along predetermined bending lines 23 to the formed as a hollow body block 1 d. Conveniently, the blank part 21 forms the complete development of the hollow body; However, it is understood that the hollow body can also be composed of several blank parts.

The blank part 21 bears on its outer surface lying in relation to the hollow body in accordance with the matrix fields 7d, of which only one is shown for the sake of clarity.

permanently magnetized magnetic regions 9d between which

according to the principles explained above soft magnetic yoke regions 1 1 d lie. The yoke regions 1 d are in the illustrated embodiment by not permanently magnetized layers covered areas of the soft magnetic blank portion 21 formed. In the magnetic regions 9d, the blank part 21 overlaps the surface in a planar manner

Magnetic regions 9d. The blank part 21, which consists of soft magnetic metal sheet, here ensures the magnetic inference, which is advantageous in particular in the case of strip-shaped magnetization of the magnetic regions 9d.

As Figure 7 shows, the blank portion 21 for receiving the

Magnetic regions 9d be contoured recessed, so that there are substantially flat outer surfaces of the building block 1 d. It is understood that the depression in sufficiently thin layers of the

Magnetic region 9d can also be omitted.

The permanent magnetizable layer of the magnetic regions 9d may in some applications also over the entire surface of the

Blank portion 21 extend, in which case only the specific area for the magnetic portions 9d surface parts are magnetized.

The permanently magnetized or permanent magnetizable layer of the magnetic regions 9d is expediently applied to the blank section 21 when it is still lying flat, and

expediently, even in still flat lying settlement in the

Magnetic regions 9d magnetized. In this way, the

Building blocks particularly inexpensive and easy. The idea of producing the building block from the development of a soft-magnetic sheet-metal blank part is independent of the shape of the building block and the nature of its matrix fields, so it is also suitable for the previously explained

Exemplary embodiments of FIGS. 1 to 5.

Claims

claims

Modular block system comprising a plurality of building blocks (1), each of which has at least one pair of substantially flat side surfaces (3, 5) parallel to each other, in particular in the form of a polyhedron having substantially planar side surfaces (3, 5), preferably in the shape of a parallelepiped or a straight prism, each building block (1) having at least one matrix field (7) with a plurality of flat magnetically hard magnetic regions (9) arranged around a center (13) of the matrix field (7) on at least one of the side surfaces (3, 5) in particular on which at least one pair of opposite side surfaces (3, 5),

characterized in that

the matrix field (7) around the center (13) in each case between adjacent magnetic regions (9) has flat, soft magnetic yoke regions (1 1).

Block system according to claim 1, characterized in that the magnetic regions (9) and the yoke regions (1 1) of the matrix field (7) at least one of the side surfaces (3, 5), in particular the matrix fields (7) of the at least one pair of opposing side surfaces ( 3, 5) are each arranged in pairs rotationally symmetrical about the center (13) around.

Block system according to claim 2, characterized in that the side surface (3, 5) having the rotationally symmetric matrix field (7) is square or has an integer aspect ratio and a number of matrix fields (7) corresponding to the whole number has side by side.

Building block system according to claim 2 or 3, characterized in that the magnetic areas (9) and the yoke areas (1 1) of the matrix field (7) to the center (13) have sectoral shape, in particular, have substantially the same shape and size.

Building block system according to one of claims 1 to 4, characterized in that the magnetic regions (9a, b) and the yoke regions (1 1 a) of the matrix field (7a, b) at least one of the side surfaces (3a, b, 5a, b), in particular the matrix fields (7a, 7b) of the at least one pair of mutually opposite side surfaces (3a, b, 5a, b) are arranged alternately in a checkerboard pattern in pairs in arrangement directions extending transversely to one another.

Block system according to claim 5, characterized in that the number of magnet areas (9a, b) and the number of yoke areas (11a, b) is at least equal to one of the two arrangement directions, in particular in both arrangement directions.

Block system according to claim 5 or 6, characterized in that the magnetic regions (9a, b) and the yoke regions (1 1 a, b) of the matrix field (7 a, b) have a rectangular shape, in particular square shape and preferably have substantially the same shape and size.

Building block system according to one of claims 1 to 7, characterized in that the magnetic regions (9a, b) are magnetized in magnetization strips parallel to one another with polarity (N, S) alternating with the magnetization strips.

Building block system according to claim 8, characterized in that the magnetization strips (N, S) of the magnetic areas (9) of the matrix field (7) with respect to the center (13) in adjacent magnetic areas (9) from magnetic area (9) to magnetic area (9) rotationally symmetrical to each other. Block system according to claim 8 or 9 in conjunction with one of claims 5 to 7, characterized in that the magnetization strips with respect to the center (13a, b) of the matrix field (7a, b) obliquely to the arrangement directions, in particular in the direction of an angle bisector between the Arrangement directions run.

1 1. Block system according to one of claims 1 to 10, characterized in that the magnetic regions (9) and the yoke regions (1 1) of the matrix fields (7) of at least the opposing side surfaces i o (3, 5) are arranged in identical patterns in plan view.

12. block system according to one of claims 1 to 1 1, characterized in that the building block (1) has a base body made of non-magnetic material and the magnetic areas (9) by a permanent- i 5 magnetized layer, in particular a film are formed.

13. block system according to claim 12, characterized in that the yoke regions (1 1) are formed by a ferromagnetic layer, in particular a film.

0

14. block system according to one of claims 1 to 1 1, characterized in that the building block (1) has a base body made of a ferromagnetic particles containing plastic material. 15. The modular block system according to claim 1, characterized in that at least the side surfaces (3d, 5d) of the building blocks (1d) having the matrix field (7d) comprises a carrier layer forming the soft-magnetic yoke regions (11d) soft magnetic material, on its outwardly facing surface at least in the hard magnetic magnetic regions (9d) of the matrix field

(7d) carry a permanently magnetized or permanently magnetizable layer.

16. block system according to claim 15, characterized in that the building block is designed as a hollow body whose wall is formed as a carrier layer.

5 7. block system according to claim 16, characterized in that the

Wall of the hollow body is formed as a blank part (21) of soft magnetic metal sheet, in particular wherein the blank part (21) is formed as a one-piece development of a plurality of side surfaces as a hollow body.

O

18. block system according to one of claims 1 to 17, characterized in that the matrix field (7) extends substantially over the entire width and / or the entire length of the side surface (3, 5).

19. block system according to one of claims 1 to 18, characterized in that the center (13) of the matrix field (7) in a longitudinal center and / or transverse center of the side surface (3, 5) is located.