Toy building block set
Patent Information
- Authority / Receiving Office
- WO · WO
- Patent Type
- Applications
- Current Assignee / Owner
- VOLK HUBERT
- Filing Date
- 2025-02-10
- Publication Date
- 2026-07-30
AI Technical Summary
Existing toy building block systems require high force and time for assembly and disassembly due to dovetail connections extending over the entire length of the blocks, and lack stable transverse structures, leading to potential connection collapse under load.
The design incorporates dovetail-shaped recesses and projections with inclined guide surfaces and receiving webs, allowing for a click-like connection that is strong yet easy to assemble and disassemble, enabling multi-dimensional structural strength and stability.
The solution provides fast, reliable assembly and disassembly without tools, ensuring stable, resilient models and large structures with defined interaction of block types, preventing connection collapse under load.
Smart Images
Figure DE2025000020_30072026_PF_FP_ABST
Abstract
Description
[0001] Toy building block set
[0002] The invention relates to a toy building block set for producing flat, three-dimensional models by means of building blocks which have both dovetail-shaped recesses and dovetail-shaped projections and by means of which the building blocks are connected to one another.
[0003] In the prior art, for example, DE 23 29 339 A1, WO 0177 456 A1, US 2010 / 0282060 A1 and US 2020 / 171400 A1 describe building blocks for the construction of buildings on whose front and / or side walls both dovetail-shaped recesses and dovetail-shaped projections are arranged, by means of which the building blocks interlock during assembly by pushing the dovetail guides into one another and are thus firmly connected to one another in one plane.
[0004] On the top or bottom of these building blocks, there are usually square, round or rectangular projections and / or recesses, to which projections and / or recesses such as guide pins, guide blocks, guide bars or similar are arranged on the other side of the respective building block, which, when placing / stacking the building blocks on top of each other,
[0005] Confirmation copy fit together and, due to their own weight, give stability to the overall system.
[0006] The building blocks presented in US 2020 / 171400 A1 can be used to create scale models in engineering, architecture, filmmaking or hobby model making, which can be disassembled into a collection of building blocks when the scale model is no longer needed.
[0007] The main disadvantage of all the above-mentioned designs is that the assembly, as well as the disassembly, i.e. the sliding of the dovetail guides into each other in the aforementioned components, requires a very high amount of force and time.
[0008] From DE 1 802 464 A1, another building block or building block is known, the side surfaces of which are flat and on each of whose two end surfaces a dovetail groove is arranged.
[0009] The building blocks are connected side by side by inserting a dovetail connector into the two dovetail grooves of the adjacent end faces.
[0010] In addition, this building block has a dovetail groove running in the longitudinal direction on the underside and a corresponding dovetail bar on the top side, which also extends in the longitudinal direction over the entire length of the brick or block.
[0011] This solution also has the disadvantage that the assembly, i.e. the insertion of the dovetail connecting piece into the dovetail grooves of the end faces of the adjacent building blocks as well as the telescoping of the dovetail web, which extends longitudinally at the top and bottom over the entire length of the brick or block, into the associated dovetail groove of the adjacent brick or block, which also extends over the entire length of the brick or block, requires a very high expenditure of force and time.Furthermore, US 2008 / 0 280 521 A1 discloses a set of cubes or generally parallelepiped bodies with interlocking dovetail formations of T-post, half T-post, T-slot, and half T-slot, and matching rails, which can slidably interlock to allow variable movement of individual cubes and placement within an arrangement of substantially similar cubes and / or rails, and which can be used as building blocks for construction sets and for numerous other purposes, for example as storage containers. Each cube consists of six plates in two different plate types, i.e. three of each type, whose T-shaped dovetail formations interlock in the form of sliding connections during assembly.
[0012] In summary, it can be stated that all of the above-mentioned construction types have in common the sliding of the dovetail web(s) extending over the entire length and / or height of the brick or block into the associated dovetail grooves of the adjacent brick or block, which also extend over the entire length and / or height of the brick or block, and that this sliding into one another to connect the building blocks to one another requires a very high expenditure of force and time.
[0013] Furthermore, none of the aforementioned solutions allows for a stable transverse structure. Furthermore, toy building block sets are known in the prior art that allow users to practice and improve hand-eye coordination.
[0014] Building blocks are among the toys with the greatest variety of types.
[0015] The toy building blocks described in the prior art often have the form of blocks with different geometric shapes and allow stacking in different directions.
[0016] Arranged on / in these building blocks are projections and recesses by means of which the building blocks can be connected to one another by means of plug-in fittings. For example, CH 692 325 A5 discloses a toy construction kit with flat sides, consisting of stackable, cube- or cuboid-shaped building blocks with a top and a bottom, and with fastening elements arranged on the top and bottom, which are formed by matching and interlocking ribs with a square or rectangular cross-section and associated slots, the ribs being arranged on one of the two sides of the building block and the slots on the other.
[0017] One of the most well-known building blocks are LEGOO blocks, whose special feature is that a single square surface is used as the basic unit, which is then expanded into a rectangular body with an enlarged surface.
[0018] However, the structural strength achieved by the plug connection in only one direction may be too low for the respective application and, under corresponding load, may lead to detachment of the plug connection, i.e. a collapse of the connection.
[0019] The resulting difficulties in assembling a large structure are obvious and straightforward.
[0020] The invention is therefore based on the object of developing a toy building block set for the production of flat and three-dimensional models, by means of building blocks which have both dovetail-shaped recesses and dovetail-shaped projections and by means of which the building blocks are connected in an interlocking manner, which does not have the aforementioned disadvantages of the prior art, and in which the novel connection of the building blocks to each other ensures a multi-dimensional structural strength, which prevents the connection from collapsing even under increased load on the connection of the building blocks, but already enables the assembly of stable, resilient, playable models with just a few components, but also the construction of large, stable, statically resilient buildings (e.g., houses, towers, etc.) with a high model variety through a defined interaction of the individual building block types with each other, with simple, fast, reliable, safe assembly of the models without any additional tools, whereby also with very little disassembly force a simple, safe, fast and reliable disassembly of the models, without any damage to the building blocks, is to be ensured.
[0021] According to the invention, this object is achieved by a toy building block set for producing flat and three-dimensional models, by means of several plastic building blocks which have dovetail-shaped recesses as well as dovetail-shaped projections and by means of which these building blocks are connected in an interlocking manner, according to the features of the main claim of the invention.
[0022] Advantageous embodiments, details and features of the invention emerge from the subclaims, as well as from the following description of the components according to the invention in conjunction with the associated drawings.
[0023] The invention will now be explained in more detail using an embodiment in conjunction with the associated figures.
[0024] They show:
[0025] Figure 1.1 and 1.2 : a different inventive
[0026] A model assembled from building blocks in a spatial representation, on the one hand according to Figure 1.1 in an assembly drawing and on the other hand according to Figure 1.2 in the associated exploded view; Figures 2.1 and 2.2: a model assembled from even more different building blocks according to the invention in a spatial representation, on the one hand according to Figure 1.1 in an assembly drawing and on the other hand according to Figure 1.2 in the associated exploded view;
[0027] Figures 3.1 to 3.5: the double connection block 1 according to the invention, also shown in Figures 1 and 2, in different graphic representations, wherein Figure 3.2 shows the detail U from Figure 3.1 and wherein Figure 3.6 shows the detail V from Figure 3.3;
[0028] Figures 4.1 to 4.4: the double corner stone 4 according to the invention, also shown in Figures 1 and 2, in different graphic representations, wherein Figure 4.2 shows the detail K from Figure 4.1;
[0029] Figures 5.1 to 5.5: the base connection block 2 according to the invention, also shown in Figures 1 and 2, in different graphic representations, wherein Figure 5.5 shows the detail X from Figure 5.3;
[0030] Figures 6.1 to 6.3: show the adapter 3 according to the invention, also shown in Figures 1 and 2, in different graphic representations; Figures 7.1 to 7.2: show the end block 6 according to the invention, also shown in Figures 1 and 2, in two different graphic representations;
[0031] Figures 8.1 to 8.6: the base corner stone 5 according to the invention, also shown in Figures 1 and 2, in different graphic representations, wherein Figure 8.5 shows the detail Y from Figure 8.1 and Figure 8.6 shows the detail Z from Figure 8.2;
[0032] Figures 9.1 to 9.3: two double connecting blocks 1 (not shown in Figures 1 and 2) connected edgewise to one another with a guide height H which is increased at the dovetail webs 9 compared to the wall thickness T of the side walls 11, and dovetail edge webs 20 adjacent to the receiving webs 13 of the side walls 11 and which are reduced in thickness compared to the dovetail webs 9, in different graphic representations, wherein Figure 9.3 shows the detail L from Figure 9.2.
[0033] Figures 10.1 to 10.6: the dovetail central longitudinal groove double connection block 22 according to the invention, also shown in Figure 2, in different graphic representations, wherein Figure 10.2 shows detail A from Figure 10.1 and Figure 10.6 shows detail C from Figure 10.3; Figures 11.1 to 11.6: the short web double connection block 23 according to the invention, also shown in Figure 2, in different graphic representations, wherein Figure 11.2 shows detail E from Figure 11.1 and Figure 11.6 shows detail M from Figure 11.3.
[0034] The building blocks of the toy building block set according to the invention for producing flat and three-dimensional models by means of several plastic building blocks with dovetail-shaped recesses and dovetail-shaped projections, by means of which these building blocks can be connected in an interlocking manner, are characterized in that the basic variant of these building blocks of the toy building block set is the base block, which has approximately the shape of a cube and which has a square base area open at the bottom, a square ceiling wall 8, two opposite square side walls 11 and two opposite end walls 16, wherein both the side walls 11 and the end walls 16 have a wall thickness T.
[0035] What is essential to the invention is that on the square ceiling wall 8 of the base stone, between the two opposite side walls 11, two square dovetail webs 9 with two end faces and two long sides are arranged, which have a guide height H and a guide width B, wherein all walls arranged on the two end faces and the two long sides of the dovetail webs 9 are arranged as dovetail guide surfaces 10 inclined relative to the vertical by the guide angle a, which is in the range of 2° to 5°.
[0036] It is characteristic that the end faces of the dovetail webs 9 face the side walls 11 of the base stone, and that both the end faces of the dovetail webs 9 facing the side walls 11 of the base stone and the side surfaces of the dovetail webs 9 facing the end walls 16 of the base stone are always spaced apart by the wall thickness T from the respective adjacent outer edges of the base stone.
[0037] It is essential that the longitudinal sides of adjacent dovetail webs 9, which are designed as dovetail guide surfaces 10 and which run alongside one another on the ceiling wall 8, form a dovetail-shaped guide groove on the ceiling wall 8 which runs in the longitudinal direction between the dovetail webs 9 and has the cross section of an isosceles trapezoid, which has a groove head width W at the top and a groove foot width G at the bottom, ie at the level of the ceiling wall 8, wherein the groove foot width G corresponds to twice the wall thickness T.
[0038] It is characteristic that stabilizing webs 12 run between the side walls 11 of the base stone below the dovetail webs 9, and that the lower edges of the stabilizing webs 12 are spaced from the lower edge of the side walls 11 by at least the guide height H, wherein the side walls 11 below the stabilizing webs 12 form receiving webs 13 with dovetail guide surfaces 10 and the guide height H, which are spaced from one another by the guide width B, wherein the dovetail guide surfaces 10 are arranged inclined with respect to the vertical by the guide angle α, which lies in the range from 2° to 5°, and that these dovetail guide surfaces 10 arranged on the inside of the receiving webs 13 of the adjacent side walls 11 also form a dovetail-shaped guide groove with a guide height H and a guide width B.
[0039] It is also essential to the invention that the two end faces arranged opposite one another on the end face of each of the dovetail webs 9, which have a web head width K at the top at the free end and a web foot width F at the bottom on the level of the ceiling wall 8, are also designed as dovetail guide surfaces 10 and are arranged inclined at the guide angle a with respect to the perpendicular to the plane of the ceiling wall 8, whereby these two end faces arranged opposite one another on each of the dovetail webs 9 form a dovetail-shaped guide with a guide height H and a guide width B.
[0040] It is also important that locking grooves 14 are arranged in the dovetail guide surfaces 10 of the receiving webs 13 of the side walls 11.
[0041] It is characteristic that at least one of the end walls 16 of the base stone has a recess between the dovetail guide surfaces 10 of the receiving webs 13 of the side walls 11 at least over the guide height H.
[0042] When connecting the building blocks according to the invention, the dovetail guide surfaces 10 of the dovetail webs 9 of one building block or several building blocks engage in the dovetail guide surfaces 10 of the receiving webs 13 of another building block and thus form a dovetail connection.
[0043] The inventive design of the dovetail guides enables a high-strength connection of the components according to the invention by plugging and / or sliding them together, wherein the tolerances of the components are dimensioned such that they can be joined / connected to one another with a sliding fit, ie they can still be moved by hand.
[0044] Due to the flatly inclined design and flat arrangement of the dovetail guides on the building blocks according to the invention, it is easily possible to insert and snap the dovetail-shaped projections of one building block into the dovetail-shaped recesses of the adjacent building blocks, analogous to a click connection, in order to quickly and easily connect the building blocks to one another in an interlocking, high-strength manner.
[0045] At the same time, the inventive solution also makes it possible for the building blocks to be moved relative to one another along their dovetail joints for positioning purposes, even after they have been initially assembled. To disassemble the models, the inventive dovetail joints between the building blocks can then be easily and damage-free released simply by pulling and / or pushing them apart, i.e., without any tools.
[0046] According to the invention, a second design of the building blocks of the toy building block set, which is shown in Figures 8.1 to 8.6, and which is referred to as the base corner stone 5, and which differs from the base stone in that one of the two end walls 16 of the base stone has been removed except for the wall thickness T of the side walls 11, so that instead of one of the end walls 16 of the base stone, two receiving webs 13 are arranged on the base corner stone 5, spaced from one another by the guide width B, with dovetail guide surfaces 10 extending over a guide height H, and these dovetail guide surfaces 10 are also inclined relative to the vertical by the guide angle α, which is in the range from 2° to 5°, and these dovetail guide surfaces 10 together form a dovetail-shaped guide groove with a guide height H and a guide width B, and that locking grooves 14 are arranged in the dovetail guide surfaces 10 of the receiving webs 13 of the side walls 11.
[0047] It is also characteristic that a third design of the building blocks of the toy building block set, which is shown in Figures 5.1 to 5.5 and which is referred to as the base connecting block 2, differs from the base corner block 5 in that the end wall 16 still remaining on the base corner block 5 is also replaced by two spaced-apart receiving webs 13, and which together form a further dovetail-shaped guide groove with dovetail guide surfaces 10 over a guide height H and a guide width B, wherein here too locking grooves 14 are arranged in the dovetail guide surfaces 10 of the receiving webs 13 of the side walls 11.
[0048] The inventive design of the dovetail guides also enables a high-strength connection of the building blocks according to the invention, by plugging and / or sliding, with the other building blocks of the building block box according to the invention in these designs.
[0049] Due to the flatly inclined design and flat arrangement of the dovetail guides on the building blocks according to the invention, it is easily possible to insert and snap the dovetail-shaped projections of one building block into the dovetail-shaped recesses of the adjacent building blocks, analogous to a click connection, in order to quickly and easily connect the building blocks to one another in an interlocking, high-strength manner.
[0050] At the same time, the solution according to the invention also makes it possible for the building blocks to be moved relative to one another along their dovetail joint for positioning purposes, even after they have been plugged together for the first time.
[0051] To disassemble the models, the dovetail joints between the building blocks according to the invention are then easily and damage-free separated from one another simply by pulling and / or pulling them apart, i.e. without any tools.
[0052] According to the invention, further building blocks of the toy building block set are formed by multiplying the square basic grid of the base block by multiple linear juxtapositions, and that designs of these building blocks can have only one or no end wall, and that, for example, when the basic grid of the basic variant is doubled, three further designs of a double block are formed from the three designs of the square basic variant, which are constructed analogously to the three designs of the square basic variant in such a way that the double block has two end walls 16, wherein at least one of the end walls 16 is notched out between the two side walls above the guide height H of the receiving webs 13, and that a double corner block 4, which is shown in Figures 4.1 to 4.4, has only one end wall 16, and in place of the second end wall of the double brick 4, two spaced-apart receiving webs 13 are arranged there, which together form a dovetail-shaped guide groove with a guide height H and a guide width B, wherein in the dovetail guide surfaces 10 of the receiving webs 13 of the side walls 11, spaced-apart locking grooves 14 are again arranged.
[0053] According to the invention, a double connection block 1, as shown in Figures 3.1 to 3.5, analogously to the base connection block 2, has no end wall 16, wherein instead of the end wall of the double corner block 4, two spaced-apart receiving webs 13 are arranged here too, which together form a dovetail-shaped guide groove with a guide height H and a guide width B, wherein the spaced-apart locking grooves 14 are arranged in the dovetail guide surfaces 10 of the receiving webs 13 of the side walls 11.
[0054] It is also essential to the invention that another of the possible construction shapes of the building blocks of the toy building block set is a dovetail central longitudinal groove block, which is characterized in that on a building block provided with dovetail web(s) 9 and / or dovetail edge web(s) 20, a dovetail-shaped guide central longitudinal groove is arranged centrally with respect to the longitudinal extent of the dovetail webs 9 and / or the dovetail edge webs 20 and running at right angles to the longitudinal axes of the dovetail webs 9 and / or the dovetail edge webs 20 in these dovetail webs 9 and / or these dovetail edge webs 20, which has the cross section of an isosceles trapezoid, which has a groove head width W at the top and at the bottom, ieat the level of the ceiling wall 8, has a groove base width G, wherein the groove base width G corresponds to twice the wall thickness T, wherein the dovetail-shaped guide center longitudinal groove divides each of the original dovetail webs 9 of the respective building block, if present on the respective building block, into two equally sized dovetail short webs 24, and or also each of the original dovetail edge webs 20 of the respective building block, if present on the respective building block, into two equally sized dovetail edge short webs 25, each with a uniform web head width K and a uniform web base width F.
[0055] Two of the possible embodiments of the dovetail center longitudinal groove blocks of the toy building block set are shown in Figures 2.1 and 2.2. These are the design of a dovetail center longitudinal groove double connecting block 22 and the design of a dovetail center longitudinal groove double corner block 26. The dovetail center longitudinal groove double connecting block 22 is also shown in Figure 10.
[0056] It is also characteristic that a further design of the building blocks of the toy building block set is a short-web brick, which in its geometric dimensions corresponds to a dovetail central longitudinal groove brick which is split in two in the middle along its dovetail-shaped guide central longitudinal groove and on which a further side wall 11 is arranged in the region of its division plane, as shown, for example, in the design of a short-web double-connecting brick 23, which geometrically corresponds to a dovetail central longitudinal groove double-connecting brick 22 which is split in two in the middle along its dovetail-shaped guide central longitudinal groove and on which an associated side wall 11 corresponding to the original design of the now split building block is arranged in the region of its division plane.
[0057] One of the possible designs of the short-web bricks of the toy building block set is shown in Figure 11. This is the design of a short-web double-connecting brick 23.
[0058] What is essential for these designs is that the side walls 11 arranged on the short web block also have receiving webs 13 at their free ends, which, when two side walls are placed against one another, then form the dovetail-shaped cross-section of an isosceles trapezoid over the guide height H in the area of their guide height H, which has a groove head width W at the top and a groove foot width G at the bottom, ie at the free end of the two adjacent side walls 11, wherein the groove foot width G corresponds to twice the wall thickness T.
[0059] Due to the consistent use of the dovetail guides according to the invention in all building blocks of the toy building block set according to the invention, this design according to the invention enables a high-strength connection of all building blocks according to the invention, by plugging and / or sliding, with all other building blocks of the building block box according to the invention.
[0060] Due to the flatly inclined design and flat arrangement of the dovetail guides on the building blocks according to the invention, it is easily possible to insert and snap the dovetail-shaped projections of one building block into the dovetail-shaped recesses of the adjacent building blocks, analogous to a click connection, in order to quickly and easily connect the building blocks to one another in an interlocking, high-strength manner.
[0061] At the same time, the solution according to the invention also makes it possible for the building blocks to be moved relative to one another along their dovetail joint for positioning purposes, even after they have been plugged together for the first time.
[0062] To disassemble the models, the dovetail joints between the building blocks according to the invention are then easily and damage-free separated by simply pulling and / or pushing them apart, i.e. without any tools.
[0063] It is also characteristic that another building block of the toy building block set is the adapter block 3, which is shown in Figures 6.1 to 6.3, which is formed by an adapter plate 17 on which, for example, two dovetail webs 9 are arranged, wherein the dovetail webs 9 run across the entire width of the adapter plate 17, and the adapter plate 17 corresponds in its width dimension to the guide width B, and which corresponds in its length dimension to the height of the side wall 11, and in its thickness dimension of the adapter plate 17 to the guide height H, and that along the length dimension, on both sides of the adapter plate 17, dovetail guide surfaces 10 are arranged, which are inclined relative to the vertical by the guide angle α, which lies in the range from 2° to 5°, and that the two other side surfaces of the adapter plate 17, the adapter end surfaces 21, which run parallel to the central longitudinal axes of the dovetail webs 9, are not designed as dovetail guide surfaces 10.
[0064] It is essential that the two dovetail bars 9 arranged on the adapter plate 17 are arranged and dimensioned in the same way as on the base stone, iethat the dovetail webs 9 always have the guide height H in the height dimension and the guide width B in the length dimension, and that the two dovetail webs 9, due to their dimensioning, always form guide webs with a guide width B that are offset from one another by 90° both in the longitudinal direction and in the transverse direction of the dovetail webs 9, wherein, analogously to the base block, all 4 walls of the end faces of the two dovetail webs 9 are arranged as dovetail guide surfaces 10, inclined relative to the vertical by the guide angle α, which lies in the range of 2° to 5°, and the side walls of the long sides of the two adjacent dovetail webs 9, designed as dovetail guide surfaces 10, are spaced from one another by the groove head width W and form a dovetail-shaped guide groove with respect to one another, the width of which corresponds to twice the wall thickness T.
[0065] The connection of an adapter block 3 to one or more building blocks is carried out on the one hand by the dovetail guide surfaces 10 of the adapter block 3 arranged on the adapter plate 17 engaging in the dovetail guide surfaces 10 of the receiving webs 13 of another building block and / or on the other hand by the dovetail guide surfaces 10 of the adapter block 3 arranged on the dovetail webs 9 engaging in the dovetail guide surfaces 10 of the receiving webs 13 of another building block.
[0066] It is also according to the invention that locking knobs 15 associated with the locking grooves 14 are arranged in the longitudinal direction of the adapter stone 3.
[0067] In the exemplary embodiment, a locking knob 15 assigned to the locking grooves 14 is arranged centrally on both sides of the adapter block 3 in the longitudinal direction.
[0068] The locking grooves 14 as well as the locking knobs 15 assigned to the locking grooves 14 are, for example, as shown in the present embodiment, partially circular in shape and have a locking depth N and a locking radius R.
[0069] Due to the presence of the locking grooves 14 on / in the guide webs of the building blocks, it is possible to position the adapter block 3, which is provided with the locking knobs 15 assigned to the locking grooves 14, in the guide webs of the other building blocks in such a way that all other building blocks arranged on the adapter block 3 are also fixed in the exact position on the model.
[0070] It is also important that another building block of the toy building block set is the launching block 6, which is shown in Figures 7.1 to 7.2, which consists of a cover wall 18 on which two receiving webs 13 with dovetail guide surfaces 10 are arranged, spaced apart from each other by the guide width B, which serve as side walls
[0071] 11 together form a dovetail-shaped guide groove with a guide height H and a guide width B, wherein locking grooves 14 are arranged in the dovetail guide surfaces 10 of the receiving webs 13.
[0072] Figure 9 shows a special design of the toy building block set according to the invention for the production of flat or three-dimensional models with a guide height H on the dovetail webs 9 which is increased compared to the wall thickness T of the side walls 11 for reasons of clamping security, which is characterized in that with a guide height H which is increased compared to the wall thickness T of the side walls 11, ie with lateral receiving webs 13 arranged on the building blocks, then the dovetail webs 9 adjacent to the lateral receiving webs 13 on the ceiling wall 8 are designed as dovetail edge webs 20, wherein these dovetail edge webs 20, in addition to a web width which is reduced on the side of the receiving webs compared to the web width of the dovetail web 9, also with a web width on the side of the receiving webs, ieare equipped with a flat dovetail edge surface 19 arranged on the reduced side of the dovetail web 9 and running perpendicular to the ceiling wall 8.
[0073] Both Figures 1, 2, 3, 4, 5, 8 and 9 show building blocks with one or more dovetail edge webs 20, as well as Figures 2, 10 and 11 show building blocks with the equivalent dovetail edge short webs 25 which are characterized in that on the dovetail edge webs 20 as well as on the dovetail edge short webs 25 each a flat dovetail edge web surface 19 and three
[0074] Dovetail guide surfaces 10 are arranged.
[0075] When connecting building blocks on which the dovetail edge web(s) 20 or the dovetail short web(s) 24 are used instead of one or more dovetail web(s) 9 or the dovetail short web(s) 24,
[0076] Dovetail edge short web(s) 25 is / are arranged, the engagement in the dovetail guide surfaces 10 of the receiving webs 13 of another module also takes place by means of the dovetail guide surfaces 10 of the dovetail edge web(s) 20.
[0077] Further building blocks according to the invention can be connected in a form-fitting manner to the respective building blocks of the building block set according to the invention on up to four sides, even in a vertical direction (see Figure 9) but also by longitudinal and even transverse construction (see Figures 1 and 2).
[0078] All building blocks of the inventive building block set share the inventive design of the dovetail guides, which enables a high-strength connection of the inventive building blocks to one another by plugging and / or sliding. Due to the inventive flatly inclined design and flat arrangement of the dovetail guides on the inventive building blocks, it is easily possible to insert and snap the dovetail-shaped projections of one building block into the dovetail-shaped recesses of the adjacent building block, similar to a click connection, thus quickly and easily connecting the building blocks to one another in an interlocking, high-strength manner.
[0079] At the same time, the solution according to the invention also makes it possible for the building blocks to be moved relative to one another along their dovetail joint for positioning purposes, even after they have been plugged together for the first time.
[0080] To disassemble the models, the dovetail joints between the building blocks according to the invention are then easily and damage-free separated by simply pulling and / or pushing them apart, i.e. without any tools.
[0081] By means of the solution according to the invention, it has thus been possible to develop a toy building block set for the production of flat and three-dimensional models, by means of the building blocks according to the invention which have both dovetail-shaped recesses and dovetail-shaped projections and by means of which the building blocks are connected in an interlocking manner, which does not have the disadvantages of the prior art, and in which the novel connection of the building blocks according to the invention ensures a multi-dimensional structural strength, which prevents a collapse of the connection of the building blocks according to the invention even under increased load, but already enables the assembly of stable, highly resilient play models with just a few components, but also the construction of large, stable, statically resilient buildings (e.g., houses, towers, etc.) with a high variety of models through the defined interaction of the connecting elements according to the invention on the individual building block types with each other, with simple, quick, reliable, safe assembly of the models without any additional tools is ensured, and in addition with very little disassembly force required a simple, safe, quick and reliable disassembly of the models is ensured without damaging the building blocks.
[0082] Reference symbol compilation
[0083] 1 double connection block
[0084] 2 base connection blocks
[0085] 3 adapters
[0086] 4 double corner stones
[0087] 5 base cornerstone
[0088] 6 capstone
[0089] 7 basic bodies
[0090] 8 Ceiling wall
[0091] 9 Dovetail bar
[0092] 10 Dovetail guide surface
[0093] 11 Side wall
[0094] 12 Stabilization bar
[0095] 13 receiving bridge
[0096] 14 locking groove
[0097] 15 locking knobs
[0098] 16 Front wall
[0099] 17 Adapter plate
[0100] 18 Cover wall
[0101] 19 Dovetail edge web surface
[0102] 20 dovetail edge bar
[0103] 21 adapter end faces
[0104] 22 Dovetail center longitudinal groove double connection brick
[0105] 23 short web double connection brick
[0106] 24 dovetail short bridge
[0107] 25 Dovetail edge short bridge
[0108] 26 Dovetail center longitudinal groove double corner stone H guide height
[0109] B Guide width
[0110] T wall thickness
[0111] W Groove head width
[0112] G Groove base width
[0113] K web head width
[0114] F Bridge foot width
[0115] N locking depth
[0116] R Rastradius a Guide angle
Claims
Patent claims 1. Toy building block set for the production of flat and three-dimensional models, by means of several plastic building blocks which have dovetail-shaped recesses as well as dovetail-shaped projections by means of which these building blocks can be connected in an interlocking manner, characterized in that the basic variant of these building blocks of the toy building block set is the base block, which has approximately the shape of a cube and which has a downwardly open square base, a square top wall (8), two opposing square side walls (11), and two opposing end walls (16), wherein both the side walls (11) and the end walls (16) have a wall thickness (T), and that on the square top wall (8) of the base block, between the two opposing side walls (11), two square dovetail webs (9) with two end faces and two long sides are arranged,which have a guide height (H) and a guide width (B), wherein all walls arranged on the two end faces and the two longitudinal sides of the dovetail webs (9) are arranged as dovetail guide surfaces relative to the vertical by the guide angle (a), which is in the range of 2° to 5°, (10) are arranged inclined, and that the end faces of the dovetail bars (9) correspond to the side walls (11) of the base stone, and that both the end faces of the dovetail webs (9) facing the side walls (11) of the base stone and the side faces of the dovetail webs (9) facing the end walls (16) of the base stone are always spaced by the wall thickness (T) from the respective adjacent outer edges of the base stone, and that the longitudinal sides of adjacent dovetail webs (9) running side by side on the ceiling wall (8), which are designed as dovetail guide surfaces (10), form with each other on the ceiling wall (8) a dovetail-shaped guide groove running longitudinally between the dovetail webs (9) with the cross-section of an isosceles trapezoid, which has a groove head width (W) at the top and a groove foot width (G) at the bottom, i.e. at the level of the ceiling wall (8), wherein the groove foot width (G) corresponds to twice the wall thickness (T), and that between the side walls (11) of the base block, stabilizing webs (12) run below the dovetail webs (9), and that the lower edges of the stabilizing webs (12) are spaced from the lower edge of the side walls (11) by at least the guide height (H),and that the side walls (11) below the stabilizing webs (12) form receiving webs (13) with dovetail guide surfaces (10) and the guide height (H), which are spaced from each other by the guide width (B), wherein the dovetail guide surfaces (10) are arranged inclined relative to the vertical by the guide angle (α), which lies in the range of 2° to 5°, and that these dovetail guide surfaces (10) arranged inside the receiving webs (13) of the adjacent side walls (11) also form a dovetail-shaped guide groove with a guide height (H) and a guide width (B), and that the two end faces arranged opposite each of the dovetail webs (9), which have a web head width (K) at the top at the free end and a web foot width (F) at the bottom at the level of the ceiling wall (8), are also designed as dovetail guide surfaces (10). trained,and are arranged at the guide angle (a) inclined relative to the vertical to the plane of the ceiling wall (8), whereby these two, opposite end faces arranged on each of the dovetail webs (9) form a dovetail-shaped guide with a guide height (H) and a guide width (B), and that locking grooves (14) are arranged in the dovetail guide surfaces (10) of the receiving webs (13) of the side walls (11), and that at least one of the end walls (16) of the base block has a recess above the guide height (H) of the receiving webs (13) between the dovetail guide surfaces (10) of the side walls (11), and that a second possible design of the building blocks of the toy building block set, which is referred to as the base corner block (5), and which differs from the base block in that one of the two end walls (16) of the base block has been removed except for the wall thickness (T) of the side walls (11), so that instead of one of the end walls (16) of the base block,on the base corner piece (5) two receiving webs (13) are arranged, which are spaced apart from one another by the guide width (B) and have dovetail guide surfaces (10) extending over a guide height (H), and these dovetail guide surfaces (10) are also inclined relative to the vertical by the guide angle (α), which is in the range of 2° to 5°, and these dovetail guide surfaces (10) together form a dovetail-shaped guide groove with a guide height (H) and a guide width (B), wherein locking grooves (14) are arranged in the dovetail guide surfaces (10) of the receiving webs (13) of the side walls (11), and that a third possible design of the building blocks of the toy building block set, which is referred to as the base connecting block (2), differs from the base corner piece (5) in that the end wall (16) still remaining on the base corner piece (5) is also formed by two, spaced-apart receiving webs (13), and which together form a further dovetail-shaped guide groove with dovetail guide surfaces (10) over a guide height (H) and a guide width (B), wherein locking grooves (14) are also arranged in the dovetail guide surfaces (10) of the receiving webs (13) of the side walls (11), and that further possible building blocks of the toy building block set are formed by multiplying the square basic grid of the basic brick by multiple linear juxtapositions, and that designs of these building blocks can have only one or no end wall, so that when the basic grid of the basic variant is doubled, three further possible designs of a double brick are formed from the three designs of the square basic variant, which are constructed analogously to the three designs of the square basic variant in such a way that the double brick has two end walls (16),and that a double corner brick (4) has only one end wall (16), and in place of the second end wall of the double brick, two spaced-apart receiving webs (13) are arranged there, which together form a dovetail-shaped guide groove with a guide height (H) and a guide width (B), wherein in the dovetail guide surfaces (10) of the receiving webs (13) of the side walls (11) spaced-apart locking grooves (14) are arranged, and that a double connecting brick (1), analogous to the basic connecting brick (2), has no end wall (16), wherein in place of the end wall of the double corner brick (4) two spaced-apart receiving webs (13) are arranged there, which together form a dovetail-shaped guide groove with a guide height (H) and a guide width (B), wherein in the dovetail guide surfaces (10) of the receiving webs (13) of the, Side walls (11) are arranged the spaced-apart locking grooves (14), and that a further possible design of the building blocks of the Toy building block set is a dovetail central longitudinal slot stone, which is characterized by the fact that on a Dovetail web(s) (9) and / or dovetail edge web(s) (20), a dovetail-shaped guide central longitudinal groove is arranged centrally in relation to the longitudinal extent of the dovetail webs (9) and / or the dovetail edge webs (20) and runs at right angles to the longitudinal axes of the dovetail webs (9) and / or the dovetail edge webs (20) in these dovetail webs (9) and / or these dovetail edge webs (20), which has the cross-section of an isosceles trapezoid, which has a groove head width (W) at the top and a groove foot width (G) at the bottom, ie at the level of the ceiling wall (8), wherein the groove foot width (G) corresponds to twice the wall thickness (T), wherein the dovetail-shaped guide central longitudinal groove each of the original dovetail webs (9) of the respective building block, if present on the building block in question, into two equally sized dovetail short webs (24),and or also divides each of the original dovetail edge webs (20) of the respective building block, if the building block in question is present, into two equally sized dovetail edge short webs (25), each with a uniform web head width (K) and a uniform web foot width (F), and that a further possible design of the building blocks of the toy building block set is a short web brick, which in its geometric dimensions corresponds to a dovetail center longitudinal groove brick which is split in two along its dovetail-shaped guide center longitudinal groove and on which a further side wall (11) is arranged in the region of its division plane, and, that the side walls (11) arranged on the short web brick also have receiving webs (13) at their free ends, which in the area of their guide height (H), when two side walls are placed against each other, then together form the dovetail-shaped cross-section of an isosceles trapezoid over the guide height (H), which has a groove head width (W) at the top and a groove base width (G) at the bottom, i.e. at the free end of the two adjacent side walls (11), wherein the groove base width (G) corresponds to twice the wall thickness (T), and that a further possible building block of the toy building block set is the adapter brick (3), which is formed by an adapter plate (17) on which two dovetail webs (9) are arranged, wherein the dovetail webs (9) run over the entire width of the adapter plate (17), and the adapter plate (17) corresponds in its width dimension to the guide width (B), and which in its length dimension to the height of the side wall (11),and in the thickness dimension of the adapter plate (17) corresponds to the guide height (H), and that along the length dimension, on both sides of the adapter plate (17), dovetail guide surfaces (10) are arranged, which are inclined relative to the vertical by the guide angle (α), which lies in the range of 2° to 5°, and that the two other side surfaces, the adapter end faces 21, of the adapter plate (17), which run parallel to the central longitudinal axes of the dovetail webs (9), are not designed as dovetail guide surfaces (10), and that the two dovetail webs (9) arranged on the adapter plate (17) are arranged and dimensioned in the same way as on the base stone, ie that the dovetail webs (9) always have the guide height (H) in the height dimension and the guide width (B) in the length dimension, and that the two dovetail webs (9) due to their dimensioning, form guide webs with a guide width (B) that are offset by 90° both in the longitudinal direction and in the transverse direction of the dovetail webs (9), and that, analogously to the base block, all 4 walls of the end faces of the two dovetail webs (9) are arranged as dovetail guide surfaces (10), inclined relative to the vertical by the guide angle (a), which lies in the range of 2° to 5°, and that the side walls of the long sides of the two adjacent dovetail webs (9), designed as dovetail guide surfaces (10), are spaced from each other by the groove head width (W) and form a dovetail-shaped guide groove with respect to each other, the width of which corresponds to twice the wall thickness (T), and that at least one locking knob (15) assigned to the locking grooves (14) is arranged in the longitudinal direction of the adapter block (3), and that a further possible building block of the toy building block set of the Launching stone (6) is,which consists of a ceiling wall (18) on which two receiving webs (13) with dovetail guide surfaces (10) are arranged, which are spaced apart from one another by the guide width (B), and which, as side walls (11), form a dovetail-shaped guide groove with a guide height (H) and a guide width (B), wherein locking grooves (14) are arranged in the dovetail guide surfaces (10) of the receiving webs (13).
2. Toy building block set for the production of flat or three-dimensional models according to claim 1, characterized in that with a guide height (H) which is increased compared to the wall thickness (T) of the side walls (11), ie with lateral receiving webs (13) arranged on the building blocks, then the dovetail web(s) (9) adjacent to the lateral receiving web(s) (13) on the ceiling wall (8) as dovetail edge web(s) (20) are formed, wherein these dovetail edge web(s) (20) are provided, in addition to a web width reduced on the side of the receiving webs compared to the web width of the dovetail web (9), with a dovetail edge web surface (19) arranged on the side of the receiving webs, ie on the reduced side of the dovetail web (9), which is flat and runs perpendicular to the ceiling wall (8).
3. Toy construction kit for producing flat or three-dimensional models according to one or more of claims 1 to 2, characterized in that the locking grooves (14) as well as the locking knobs (15) associated with the locking grooves (14) are designed in a part-circular manner and have a locking depth (N) and a locking radius (R).
4. Toy construction kit for the production of flat or three-dimensional models according to one or more of claims 1 to 3, characterized in that the dovetail guides of the building blocks are dimensioned in their tolerances so that they can be joined / connected to one another with a sliding fit, ie so that they can still be moved by hand.