Modular construction system for building playground equipment

Abstract

Modular construction system (1) for constructing a playground device (2), comprising several interlocking components (3), wherein the components (3) comprise several plate-shaped wall elements (4), wherein the thickness of the wall elements (4) is less than their width and their width is less than their length, wherein the wall elements (4) each have a pair of transverse cuts (21, 22) at both end sections (33, 34) with two opposing, converging transverse cuts (20), wherein the transverse cuts (20) are each provided in longitudinal side surfaces (30) of the wall elements (4), wherein a depth of the transverse cuts (20) extends in the direction of the width (61) of the wall elements (4), wherein the depth of the transverse cuts (20) is at most one quarter of the width of the wall elements (4), wherein the depth of the transverse cuts (20) is at least twice as large as a width of the transverse cuts (20), wherein the width of the transverse cuts (20) is Thickness of the wall elements (4) corresponds.

Description

[0001] The invention relates to a modular construction system for building a playground device.

[0002] Playgrounds often feature equipment such as climbing frames and towers, allowing children to indulge their natural instincts to play, climb, and explore. However, such equipment is expensive and requires considerable technical expertise for assembly, making it impractical to install it at home in most cases. Furthermore, children tend to find playing with a single piece of equipment boring after a while, leading to its frequent disuse.

[0003] The object of the present invention is to simplify the construction of playground equipment and to improve its usability.

[0004] This problem is solved by a modular construction system for building a playground device, comprising several interlocking components, wherein the components include several plate-shaped wall elements, wherein the thickness of the wall elements is less than their width and their width is less than their length, wherein the wall elements each have a pair of transverse cuts at both end sections with two opposing, converging transverse cuts, wherein the transverse cuts are each provided in longitudinal side surfaces of the wall elements, wherein a depth of the transverse cuts extends in the direction of the width of the wall elements, wherein the depth of the transverse cuts is at most one quarter of the width of the wall elements, wherein the depth of the transverse cuts is at least twice as large as a width of the transverse cuts, and wherein the width of the transverse cuts corresponds to the thickness of the wall elements.

[0005] The components of this construction system allow for the easy and advantageous assembly of a play structure. The wall elements are interlocked at right angles, such that one of the transverse cutouts of a first wall element fits into a transverse cutout of a second wall element. Since the transverse cutouts of each pair are opposite each other, another wall element can be attached to each wall element from both above and below. Because each wall element has at least two pairs of transverse cutouts, each with two cutouts, at least four other wall elements can be inserted into it. In this way, a play structure with a rectangular base can be built, its four walls formed by the interlocking wall elements.

[0006] The transverse cuts have a maximum depth of one-quarter of the width of the wall elements. Specifically, the transverse cuts have a depth of one-fifth to one-quarter of the width of the wall elements, and in particular, approximately one-quarter of the width of the wall elements. This design of the transverse cuts allows the wall elements to be interlocked in such a way that they lie flush against each other between stacked elements, yet remain securely in place without wobbling. Since the width of the transverse cuts corresponds to the thickness of the wall elements, the wall elements can be easily inserted into the cuts and are held securely in place. All specifications regarding thicknesses, widths, lengths, depths, and other dimensions are to be understood taking into account standard tolerances.

[0007] The wall elements in the assembled play structure are offset by half their width relative to the overlapping wall elements of the other walls. This offset is achieved, among other things, by the depth of the transverse cutouts. Because the depth of the transverse cutouts is at least twice their width, the wall elements can be securely interlocked.

[0008] The longitudinal surfaces of the wall elements are those surfaces defined by their length and thickness. The transverse cuts are made in these longitudinal surfaces and thus extend in the direction of the width of the wall elements.

[0009] The end sections are those sections of the wall elements that are located at the longitudinal ends of the wall elements. In particular, the end sections comprise less than 20% of the length of the wall elements, and furthermore, in particular, less than 10% of the length of the wall elements.

[0010] According to one embodiment, the wall elements each include an end cut at their end sections, which is longitudinally integrated into the wall elements. The end cut is specifically located at the level of a longitudinal center line. In particular, the end sections have the same width as the transverse cuts. According to another embodiment, at least one of the wall elements has one or more handholds integrated into a large side surface of the wall element. In particular, window openings are integrated into the large side surfaces. The large side surface is defined by the length and width of the wall element. The handholds and window openings improve the usability of the wall elements as playground equipment.

[0011] Preferably, the wall elements are designed to be connected to each other without tools by simply slotting them into the transverse cutouts, with two slotted wall elements forming a right angle and offset from each other by half their width. This tool-free slotting of the wall elements significantly simplifies the assembly of the play equipment.

[0012] Preferably, the length of all wall elements has a value of n*S, where n is a natural number and S is a predetermined or predefinable standard length. n is always greater than 0. S is a standard length that is specified during the design or manufacture of the wall elements. In particular, the standard length is greater than 20 cm. According to one embodiment, the standard length is 30 cm to 60 cm, and more particularly approximately 40 cm. The lengths of all wall elements correspond to this standard length or a multiple thereof. Thus, the lengths, and in particular also the widths and / or thicknesses, of all wall elements are gridded.

[0013] This makes it easier to assemble the wall elements and allows the play equipment to be securely assembled even when using wall elements of different lengths.

[0014] Preferably, the wall elements have at least one long element, wherein the length of the long element is at least twice, and in particular at least three times, the standard length. The long element has at least one additional pair of transverse cuts along its longitudinal direction between the pairs of transverse cuts arranged at the end sections. The transverse cuts of the additional pair of transverse cuts run parallel to the transverse cuts at the end sections and have the same shape and depth as the transverse cuts at the end sections. The additional transverse cuts make it possible to connect the long elements not only at the end sections to other wall elements. Instead, wall elements or other components can also be inserted into the additional transverse cuts arranged between the end sections. This increases the modularity of the playground equipment during assembly.In particular, the long element includes several additional pairs of transverse cuts, provided its length is at least three times the standard length. Specifically, all pairs of transverse cuts are evenly distributed along the longitudinal direction. In particular, all transverse cuts have the same depths and widths.

[0015] Preferably, the pairs of transverse cuts in the longitudinal side faces of the long elements are each spaced from the nearest pair of transverse cuts by the standard length S in the longitudinal direction. Thus, each pair of transverse cuts is spaced from the next pair or pairs of transverse cuts by the standard length S. This further improves the modularity of the construction system.

[0016] According to one embodiment, the wall elements have at least one tenon-receiving recess formed in the longitudinal side surface, wherein, in particular, the depth of the tenon-receiving recess is less than the depth of the transverse recesses and the width of the tenon-receiving recess is greater than the width of the transverse recesses, wherein the tenon-receiving recess is formed, in particular, as one or two steps directly adjacent to the transverse recesses on one or both sides of the transverse recesses. When the wall elements are joined together, the tenon-receiving recesses create slit-shaped or cross-shaped holes between the wall elements arranged one above the other. These holes can, for example, be used as mortises to fix further components to the wall elements by means of tenons.

[0017] Preferably, the components have at least one plug element that is shaped to fit the holes formed by the tenon recesses of adjacent wall elements, the plug element being particularly cross-shaped. The plug elements can close the holes formed by the tenon recesses, provided these holes are not used to receive a tenon. This improves the stability of the play equipment and increases safety during play. The plug elements have a protruding edge. The protruding edge extends along the large side surfaces and projects from the plug elements. A central part of the plug elements is particularly shaped to fit the holes, while the projecting edges have a larger cross-section than the holes. The thickness of the plug elements is particularly greater than the thickness of the wall elements.In this way, the plug elements, with their protruding edges, can securely engage in the holes. The plug elements are primarily made of plastic and are manufactured using an injection molding process.

[0018] Preferably, the components comprise at least one plate-shaped base element, wherein the base element has at least one tenon, and wherein the wall elements each have several mortises extending through the wall elements in the direction of their thickness and arranged on a longitudinal centerline of the wall elements, the mortises being form a positive fit with the at least one tenon of the base element. The base elements can be used as the base of the play equipment, as the roof of the play equipment, or as intermediate levels. For this purpose, the base elements are inserted with their tenons into the mortises of the wall elements to be stably and securely joined together. The longitudinal centerline of the wall elements runs lengthwise through the middle of the wall elements. By arranging the mortises along the longitudinal centerline, the base elements can be attached to the wall elements at the level of this centerline.When assembled, the wall elements, arranged at 90° to each other, are offset laterally. Therefore, only the mortises of two of the wall elements, which form the four walls, can be used for the tenons. Additionally, the tenon slots in the longitudinal surfaces of the wall elements on the other two sides / walls of the play structure are used to accommodate the tenons. When assembled, the tenon slots of the first wall element are at the same height as the mortises of the second wall element, which is joined to the first at a right angle. Thus, the base element can utilize both the tenon slots of the first wall element and the mortises of the second wall element to secure the tenons. This defines the plane for attaching the base elements.The arrangement of the mortises in the longitudinal direction corresponds in particular to the arrangement of the tenon receiving slots in the longitudinal direction.

[0019] The spacing of the tenons on the base element corresponds in particular to the spacing of the mortises in the wall elements and / or the spacing of the tenon receptacles in the wall elements. The tenons are, in particular, square tenons. Specifically, the tenons are designed as solid tenons, and the mortises are therefore through holes.

[0020] In particular, the floor elements have a length and a width with a value of n*S each. The dimensions of the floor elements thus correspond to the grid that also applies to the wall elements. In this way, the floor elements can easily be connected to the wall elements in various ways.

[0021] Preferably, at least one tenon projects from a side edge of the base element. The side edges are those surfaces of the base element defined by its thickness and width, as well as its thickness and length. In contrast, the large side surfaces of the base element are defined by its length and width. The thickness of the base elements is significantly less than their width and length. In particular, the base element has several tenons. This number and arrangement of tenons allows the base element to be easily and securely fixed in the assembled wall elements. Furthermore, the base element includes at least one hole and / or at least one handle in the large side surface. The holes and handles provide additional support and / or allow passage through the base element. Due to the compatibility of the components, the base elements can also be used as intermediate floors or roof elements.

[0022] Preferably, a receiving recess is provided in the side edge of the base element directly adjacent to at least one tenon. This receiving recess allows additional components to be fixed in the area between the wall elements and the base element. For this purpose, the receiving recess serves, for example, as a mortise.

[0023] Preferably, at least one of the wall elements is symmetrical with respect to a longitudinal mirror plane, wherein the longitudinal mirror plane extends centrally through the wall element in the direction of both length and thickness. The symmetrical design of the wall elements increases the possible combinations with which the wall elements can be combined. In particular, at least one of the wall elements is symmetrical with respect to a transverse mirror plane, wherein the transverse mirror plane extends centrally through the wall element in the direction of both width and thickness.

[0024] Preferably, the components comprise at least one plate-shaped gable element, wherein the gable element has transverse cutouts only on one of its two longitudinal side faces. In particular, the components comprise at least two gable elements. Otherwise, the gable elements resemble the wall elements. In particular, the longitudinal side face of the gable elements that does not have transverse cutouts comprises two surfaces that converge at an angle. In particular, the converging surfaces have mortise holes for receiving tenons. In this way, for example, a pitched roof can be fixed to the gable elements.

[0025] According to one embodiment, the components are made of or comprise hardwood, in particular eucalyptus wood. The use of hardwood is advantageous because hardwood provides the necessary stability for playground equipment intended as a climbing frame for children. Eucalyptus wood is advantageous because this type of wood is relatively hard and also resistant to weathering.

[0026] Preferably, the wall elements are made of a multi-layer panel. Multi-layer panels are also called plywood. In particular, other components are also made of a multi-layer panel. Specifically, several components, especially all components, are cut from the same multi-layer panel. Plywood is a composite material, dimensionally stable and more resistant than solid wood.

[0027] Preferably, the wall elements have a thickness of 5 mm to 100 mm. In particular, the wall elements have a thickness of 10 mm to 60 mm, and furthermore, in particular, a thickness of 12 mm to 25 mm. In particular, the wall elements have a thickness of 15 mm to 20 mm, for example, 18 mm. Such a thickness gives the wall elements the necessary stability to construct a safe playground structure. In particular, the other components also have a thickness within the specified range. In particular, all components have the same thickness.

[0028] Preferably, the components comprise at least one connecting element designed and shaped to engage in the receiving recesses of two adjacent base elements arranged along their side edges. The connecting elements are inserted into the receiving recesses to improve the stability of the play equipment. Thus, the connecting elements are preferably arranged horizontally in the plane of the base elements. The connecting elements therefore serve a similar function to the plug elements. Specifically, the connecting elements have a recess on both their top and bottom surfaces, while the side surfaces are curved. The connecting elements are thus essentially oval-shaped with recesses on the top and bottom. This curvature helps prevent injuries during play.

[0029] Preferably, the components comprise at least one base element that has transverse cutouts only on one longitudinal side and whose width corresponds exactly to half the width of the wall elements. Since the wall elements, arranged at 90° to each other, are each joined together offset by half their width, the resulting gaps can be closed by the base elements on the underside and top of the play equipment.

[0030] Preferably, the components comprise at least one node element, wherein the width of the node element corresponds to the width of the wall elements, and wherein the length of the node element is less than its width. The longitudinal side faces of the node element have exactly one pair of transverse cuts, and in particular a tenon-receiving cut. The transverse cuts of the node elements allow them to be joined to the wall elements. Since the length of the node elements is significantly shorter than the length of the wall elements, the node elements can be used as end sections, for example, when a door or opening is provided in a wall and short wall elements are used adjacent to the door. To connect the short wall elements, the node elements on the door side can be used to form the end of the short wall elements.

[0031] In particular, the components include several fixing elements. These fixing elements are designed to securely fasten the components located at the top of the play equipment. For example, the fixing elements include one or more screws or similar fasteners.

[0032] The width of the wall elements is, in particular, at least 10 cm, and in particular between 15 cm and 30 cm, for example approximately 20 cm. Such a width is advantageous for the construction of a stable play structure suitable as a climbing frame for children.

[0033] Further features of the invention will become apparent from the description of embodiments according to the invention, together with the claims and the accompanying drawings. Embodiments according to the invention may fulfill individual features or a combination of several features.

[0034] The invention is described below, without limiting the general concept of the invention, with reference to exemplary embodiments and the drawings, whereby for all details of the invention not explained in detail in the text, explicit reference is made to the drawings. The drawings show: Fig. 1. A schematically simplified overview of a construction system with a large number of components, Fig. 2. A schematically simplified overview of additional components of the construction system, Fig. 3a to 3c are schematically simplified perspective representations of various components of the construction system. Fig. 4 a schematically simplified perspective representation of a short wall element, Fig. 5 a schematically simplified perspective representation of a long wall element, Fig. 6 a schematically simplified perspective representation of a floor element, Fig. Figures 7a to 7c are schematically simplified representations of several wall elements that are assembled to build a play structure. Fig. 8 a schematically simplified representation of several components that are plugged together to build a playground device, Fig. 9 a schematically simplified representation of a fully assembled play structure in the form of a playhouse, and Fig. 10a to 10d schematically simplified representations of a plug element for closing holes between the wall elements.

[0035] In the drawings, identical or similar elements and / or parts are provided with the same reference numbers, so that a re-presentation is omitted.

[0036] Fig. Figure 1 schematically simplifies a construction system 1 consisting of a large number of different components 3. The components 3 are preferably made of a hardwood, for example eucalyptus wood, and consist of a multi-layer panel or multiplex panel from which the individual components 3 are cut out.

[0037] Construction system 1 comprises a wide variety of components 3 that can be assembled in different ways to create a large number of play structures suitable as climbing frames, towers, or similar play opportunities for children. Construction system 1 can also be used for furniture.

[0038] Construction system 1 comprises in the Fig. In the exemplary embodiment shown in Figure 1, various wall elements 4 are used. The wall elements 4 are each plate-shaped, meaning their width and length are significantly greater than their thickness. The different types of wall elements 4 include, among others, long elements 4a, climbing elements 4b, ladder elements 4c, window elements 4d, and short elements 4e. The climbing elements 4b include grip holes that serve as handles in the finished play equipment. The ladder elements 4c include a step in the middle, so that several ladder elements 4c, joined together along their long sides, form a ladder. The window element 4d includes several windows or holes.

[0039] Furthermore, the construction system 1 includes a climbing element 5 with a series of handholds that children can use to climb. A gable element 6 is also provided, which can, for example, support a sloping roof. A beam element 7 can be arranged within the play equipment, for example, to serve as a balancing element. In particular, the beam element 7 can be fixed to the climbing element 5 to create a climbing and balancing element. The remaining components can be connected to each other in various ways using the node elements 8. The base elements 9, also called foundation elements, are half the width of the wall elements 4 and are used to close any gaps in the play equipment. The floor elements 10 can be used as the base of the play equipment, as intermediate floors, or as roof elements.The relatively narrow seating elements 10a can be used, for example, as benches, while the large platform element 10b can be used, for example, as an intermediate floor, since it has an opening that can be used as a passageway. The transverse platform element 11 is not connected to the platform element 10b, but is in . Fig. 1 is only positioned in the hole of platform element 10b, as it is cut out of the multiplex panel at this point. The transverse platform element 11 can, for example, serve as a seat or handhold in the finished play equipment.

[0040] Fig. Figure 2 shows a series of further components 3 of the construction system 1. A triangular element 12, for example, serves to support the beam element 7. The connecting element 13 is designed to join two wall elements 4 along their longitudinal sides and to increase the stability of the play equipment. The roof connecting element 14 is designed to join two platform elements 10c or other ground elements 10 that are used as a sloping roof. The short base element 9a and the long base element 9b are both base elements 9 that differ in length. The short base element 9a has a single standard length S, while the long base element 9d has three times the standard length S. Similarly, the short element 4e Fig. 1 has a simple standard length S, while the long element 4a has a triple standard length S. The platform element 10c is identical to the platform element 10b, but has no holes in its large side face.

[0041] In the Fig. Figures 3a to 3c show many of the components 3 in a perspective view for better viewing.

[0042] Fig. Figure 4 shows an enlarged perspective view of the short element 4e. The length in the longitudinal direction 60 of the short element 4e is greater than its width in the direction of the width 61, which in turn is greater than its thickness in the direction of the thickness 62. In the two longitudinal side surfaces 30, which are spanned by the length and the thickness, the short element 4e comprises two pairs of transverse cutouts 21, 22, each with two opposing, converging transverse cutouts 20. The transverse cutouts 20 are each made in an end section 33, 34, which corresponds, for example, to one-fifth or one-tenth of the length of the wall element 4. One width of the transverse cutouts 20 corresponds essentially to the thickness of the wall elements 4, and the depth of the transverse cutouts 20 corresponds approximately to one-quarter of the width of the wall elements 4.In this way, two wall elements 4 can be joined together by interlocking the transverse notches 20 so that the wall elements are arranged at right angles to each other. The width and depth of the transverse notches ensure that the wall elements are positioned at a defined distance from one another and are thus firmly fixed together. Adjacent to the transverse notches 20, tenon-receiving notches 24 are provided in the longitudinal side surfaces 30. These are wider but less deep than the transverse notches 20. When two wall elements 4 are placed together along their longitudinal side surfaces 30, the adjacent tenon-receiving notches 24 form a gap or hole, which is intended, for example, to receive a tenon. At the level of a longitudinal center line 63, end notches 23 are provided in the end edges of the wall element 4. The width of these end notches corresponds to the width of the transverse notches 20.In addition, several mortises 25 are arranged along the longitudinal center line 63, which are also intended for receiving mortises.

[0043] Fig. Figure 5 shows a schematically simplified perspective view of another wall element 4 in the form of a long element 4a. The long element 4a has three times the length of the short element 4e, i.e., three times the standard length S. Long elements of other lengths can also be provided, as long as the length of the long element 4a corresponds to a multiple of the standard length S. A standard length corresponds, for example, to approximately 35 cm. In contrast to the short element 4e, the long element 4a has a total of six mortise holes 25 along its longitudinal center line 63, of which, for the sake of clarity, only one is labeled. In addition, an extra pair of transverse cutouts 26 is made into the longitudinal side surfaces 30 of the long element 4a after each standard length S. The two extra pairs of transverse cutouts 26 each have two transverse cutouts 20, the width and depth of which correspond exactly to the width and depth of the transverse cutouts 20 at the end sections 33, 34.Unlike the transverse cuts 20 at the end sections 33, 34, the transverse cuts 20 in the middle section of the long element 4a have tenon-receiving cuts 24 on both sides. If two such long elements 4a are placed next to each other along their longitudinal side surface 30, these tenon-receiving cuts 24 together with the additional transverse cuts 20 form a cross-shaped hole. Such a hole can be, for example, filled with a [missing information] in the finished play equipment. Fig. The 5 plug elements (not shown) are filled, which are designed to fit these holes.

[0044] Fig. Figure 6 shows a schematically simplified perspective view of a floor element 10 in the form of the platform element 10b. The length and width of the platform element 10b, as with the wall elements 4, are significantly greater than its thickness. The platform element 10b and the other wall elements 10 each have several tenons 41 projecting from their side edges 40. These tenons 41 can be inserted, for example, into the mortise holes 25 or the holes formed by the tenon receptacles 24 to connect the floor elements 10 to the wall elements 4. In addition, several receptacles 42 are arranged on the side edge 40, either freestanding or directly adjacent to the tenon 41. These receptacles 42 serve to receive tenons 41 of other components 3, thus increasing the compatibility of the construction system 1.Finally, a through-hole 43 and several handle holes 44 are provided in the large side surface of the platform element 10b. These holes 43, 44 allow the platform element 10b to be used as an intermediate floor.

[0045] The Fig. 7a, Fig. 7b and Fig. Figure 7c shows a schematically simplified representation of several components 3 that were assembled to build a playground device. In the Fig. 7a and Fig. In Figure 7b, the play equipment is not yet complete; only the first components 3 have been assembled. Specifically, four long elements 4a are shown, two of which are oriented transversely and two straight. The transverse cutouts 20 in the end sections 33 of the long elements 4a are each inserted into the transverse cutouts 20 of the other two long elements 4a, which are oriented rotated by 90°, as shown in Figure 7b. Fig. 7a and Fig. 7b shown.

[0046] By connecting the long elements 4a, four walls of the play equipment are formed. To make the walls higher, for example, another wall element 4a can be attached to the long side 30 of the front wall element 4a with its long side 30, so that the transverse cutouts 20 of this additional long element 4a engage with the transverse cutouts 20 of the transverse long elements 4a. Subsequently, further transversely arranged wall elements 4 can be placed on the transverse long elements 4a to make these walls higher as well. In this way, a tower or similar play equipment 2 is created, as shown in Fig. 7c shown.

[0047] The base of the play equipment is formed by ground elements, as in Fig. Figure 8 shows that in the illustrated embodiment, two floor elements 10, in the form of the seat element 10a and the platform element 10c, are provided as the floor. These floor elements 10 are inserted or placed with their pins 41 into the mortise holes 25 of the transverse long elements 4a and onto the mortise-receiving recesses 24 of the straight long elements 4a. Since the wall elements 4, arranged at 90° to each other, are each offset from one another in the width direction 61, i.e., the height of the play equipment 2, by half their width, the mortise-receiving recesses 24 of the front long element 4a are arranged at the same height as the mortise holes 25 of the transverse long elements 4a. This allows the floor elements 10 to be inserted flush.

[0048] Fig. Figure 9 shows a simplified schematic perspective view of a fully assembled play structure 2 in the form of a playhouse. Not all components 3 of the play structure 2 are labeled. The right wall of the play structure 2 is formed from long elements 4a, window elements 4d, and short elements 4e. Each short element 4e is capped with a node element 8. Since the play structure 2 has a doorway at the front, the wall elements 4 of the right wall are not connected to other wall elements 4 at this point, but rather to a short base element 9a and a series of additional node elements 8 that frame the doorway. A floor element 10 in the form of a seat element 10a serves as the base. The remainder of the front consists of another short base element 9a and short elements 4e arranged above it.The structure is completed by a gable element 6, which, together with the uppermost long element 4a, a ladder element 4c, and another gable element 6, supports the platform elements 10c used as a sloping roof. The platform elements 10c are connected by two roof connecting elements 14. On the left side of the playhouse, several other components 3 are visible through the door opening, which are not labeled. These include, among others, further long elements 4a, window elements 4d, short elements 4e, a ladder element 4c, a climbing element 5, a beam element 7 supported by triangular elements 12, and, at the very bottom of the rear wall, a long base element 9b.

[0049] For additional stabilization, the play structure 2, which is made from the construction system 1, can also include several fixing elements used to fix the uppermost components 3 together. These include, for example, nails, screws, tensioning cables, or similar items. For example, the roof connecting elements 14 can be fixed to the platform elements 10c using nails or screws, and the platform elements 10c can be fixed to the gable element 6 in the same way. In this way, an extremely stable, high-quality, and modular play structure 2 is created.

[0050] Fig. Figures 10a to 10d show schematically simplified representations of a plug element 50 from different views. Fig. 10a and Fig. 10b shows perspective drawings, Fig. 10c shows a view from above and Fig. Figure 10d shows a side view. The plug element 50 is cross-shaped and has a projecting rim 52 that extends beyond the central part 51. The rim 52 is present on both the top and bottom surfaces, forming a kind of collar. This shape of the plug element 50 allows it to be easily and securely inserted into the cross-shaped holes formed between adjacent wall elements 4, as for example in Fig. Figure 9 shows this. The plug element 50 is inserted into the transverse cut 20 and the adjacent tenon-receiving cuts 24 before the upper wall element 4 is placed onto the lower wall element 4. This closes the holes, further reducing the risk of injury during play. The plug elements 50 are made of plastic, for example, and can be produced in various colors.

[0051] All features mentioned, including those discernible from the drawings alone as well as individual features disclosed in combination with other features, are considered essential to the invention, both individually and in combination. Inventory embodiments may be fulfilled by individual features or a combination of several features. Within the scope of the invention, features marked "in particular" or "preferably" are to be understood as optional features. Reference symbol list 1 Construction system 2 Play equipment 3 components 4 wall elements 4a Long element 4b Climbing element 4c conductor element 4D window element 4e Short element 5 climbing elements 6 gable element 7 beam element 8 Node element 9 Basic element 9a short basic element 9b long base element 10 floor elements 10a Seating element 10b Platform element 10c platform element 11 Cross platform element 12 triangular elements 13 Connecting element 14 Roof connecting element 20 Cross-section 21, 22 pair of cross-sections 23 End cut 24 tenon mounting notch 25 mortise 26 pairs of cross-sections 30 Longitudinal side surface 31 large side surface 33, 34 End section 40 side edge 41 cones 42 Recording cut 43 Through hole 44 handle holes 50 plug element 51 Middle section 52 Rand 60 Longitudinal direction 61 Direction of latitude 62 Direction of thickness 63 Longitudinal centerline S Standard length

Claims

[1] Modular construction system (1) for constructing a play device (2), comprising a plurality of pluggable components (3), wherein the components (3) comprise a plurality of plate-shaped wall elements (4), wherein a thickness of the wall elements (4) is smaller than their width and their width is smaller than their length, wherein the wall elements (4) each have a pair of transverse incisions (21, 22) with two opposite, converging transverse incisions (20) at both end sections (33, 34), wherein the transverse incisions (20) are each introduced into longitudinal side surfaces (30) of the wall elements (4), wherein a depth of the transverse incisions (20) runs in the direction of the width (61) of the wall elements (4), wherein the depth of the transverse incisions (20) corresponds to a maximum of one quarter of the width of the wall elements (4), wherein the depth of the transverse incisions (20) is at least twice as large as a width of the transverse incisions (20),wherein the width of the transverse cuts (20) corresponds to the thickness of the wall elements (4)., [2] Construction system (1) according to claim 1, characterized by in that the wall elements (4) are designed to be connected to one another without tools by inserting them into the transverse incisions (20), wherein two wall elements (4) inserted into one another form a right angle and are arranged offset from one another in the direction of the width (61) by half the width. [3] Construction system (1) according to claim 1 or 2, characterized by that the length of all wall elements (4) has a value of n*S, where n is a natural number and S is a predetermined or predeterminable standard length. [4] Construction system (1) according to claim 3, characterized byin that the wall elements (4) have at least one long element (4a), wherein a length of the long element (4a) corresponds to at least twice, in particular at least three times, the standard length, wherein the long element (4a) has at least one additional transverse incision pair (26) along its longitudinal direction (60) between the transverse incision pairs (21, 22) arranged at the end sections (33, 34), wherein the transverse incisions (20) of the additional transverse incision pair (26) run parallel to the transverse incisions (20) at the end sections (33, 34) and have the same shape and depth as the transverse incisions (20) at the end sections (33, 34). [5] Construction system according to claim 4, characterized by that the pairs of transverse incisions (21, 22, 26) in the longitudinal side surfaces (30) of the long elements (4a) are each spaced apart by the standard length S in the longitudinal direction (60) from the nearest pair of transverse incisions (21, 22, 26). [6] Construction system (1) according to one of claims 1 to 5, characterized by in that the wall elements (4) have at least one tenon receiving cutout (24) which is introduced into the longitudinal side surface (30), wherein in particular a depth of the tenon receiving cutout (24) is smaller than the depth of the transverse cutouts (20) and a width of the tenon receiving cutout (24) is greater than the width of the transverse cutouts (20), wherein the tenon receiving cutout (24) is designed in particular as one or two steps directly adjacent to the transverse cutouts (20) on one or both sides of the transverse cutouts (20). [7] Construction system (1) according to claim 6, characterized by that the components (3) have at least one plug element (50) which is shaped to fit holes formed by the pin-receiving recesses (24) of adjacent wall elements (4), wherein the plug element (50) is in particular cross-shaped. [8] Construction system (1) according to one of claims 1 to 7, characterized by in that the components (3) comprise at least one plate-shaped base element (10), wherein the base element (10) has at least one tenon (41), wherein the wall elements (4) each have a plurality of tenon holes (25) which extend in the direction of the thickness (62) through the wall elements (4) and which are arranged on a longitudinal center line (63) of the wall elements (4), wherein the tenon holes (25) are formed in a form-fitting manner with the at least one tenon (41) of the base element (10). [9] Construction system (1) according to claim 8, characterized by that the at least one pin (41) protrudes from a side edge (40) of the base element (10). [10] Construction system (1) according to claim 9, characterized by that a receiving recess (42) is made in the side edge (40) of the base element (10) directly adjacent to the at least one pin (41). [11] Construction system (1) according to one of claims 1 to 10, characterized by that at least one of the wall elements (4) is designed symmetrically with respect to a longitudinal mirror plane, wherein the longitudinal mirror plane extends centrally through the wall element (4) in the direction of length and thickness. [12] Construction system (1) according to one of claims 1 to 11, characterized by that the components (3) comprise at least one plate-shaped gable element (6), wherein the gable element (6) has transverse incisions (20) exclusively on one of the two longitudinal side surfaces (30). [13] Construction system according to one of claims 1 to 12, characterized by that the components (3) consist of a hardwood or comprise a hardwood, wherein the hardwood is in particular eucalyptus wood. [14] Construction system (1) according to one of claims 1 to 13, characterized by that the wall elements (4) are made of a multi-layer board. [15] Construction system according to one of claims 1 to 14, characterized by that the wall elements (4) have a thickness of 5 mm to 100 mm.

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