CH717127B1 - Training wall system for ball sports. - Google Patents

Abstract

The invention relates to a training wall system for ball sports. In order to provide means that support one or more players in the effective training of a ball sport, the invention provides that the training wall system comprises the following: o a plurality of wall modules (10), each wall module (10) having a front surface (10.1) as well as laterally adjoining side surfaces (10.2, 10.3) on both sides, and o a plurality of spacers (20 - 25), wherein in the assembled state as intended, two wall modules (10) are arranged next to each other in such a way that their side surfaces (10.2, 10.3) face each other opposite one another, with at least one spacer (20 - 25) being interposed with a positive fit between side surfaces (10.2, 10.3) of adjacent wall modules (10) and the wall modules (10) being detachably connected to one another with the spacers (20 - 25) interposed in such a way that their front surfaces (10.1) together form a reflection surface for a ball.

Description

The invention relates to a training wall system for ball sports.

In ball sports such as soccer, training with a ball usually takes place in a team or with a partner. In addition, it is sometimes desirable in the amateur as well as in the professional area to be able to train alone. In football, the conventional goal wall is known for training without a team, which has a flat, vertical surface with two through-openings for shooting in the ball. With this, practically only the goal shot can be trained. Training without a team is therefore difficult and quickly becomes boring and one-sided. For effective training without a team, a wide variety of skills must be required in addition to shooting accuracy, such as ball skill, game tactics, condition and speed. It is also important that the training is varied to motivate the player.

Against this background, it is an object of the present invention to provide means that support one or more players in the effective training of a ball sport. The object is solved by a training wall system according to claim 1.

The invention provides a training wall system for ball sports. The ball sport can be football in particular, but also, for example, basketball, handball, tennis, squash, table tennis or the like. The term "training wall system" describes a system of components described below, which form a training wall when installed as intended. The function of the training wall is that a single player, possibly also several players, can play the ball against a reflection surface of the training wall for training purposes, whereupon the ball bounces off this reflection surface and thus - depending on the direction of movement of the ball and the skill of the player - can be played again.

The training wall system has a plurality of wall modules, with each wall module having a front surface and lateral surfaces adjoining it on both sides. When assembled, the wall modules form parts of the training wall and their dimensions, as will become clear below, also largely determine the dimensions of the training wall. The front surface of the wall module is that surface which faces the player when the training wall is used as intended. It can be curved and/or angled, at least in sections, or it can be composed of several sub-surfaces angled relative to one another. The side surfaces connect to the front surface on both sides on opposite sides (e.g. "left" and "right"). In particular, they can be flat and run parallel to one another. Each wall module can in particular be designed in one piece, although at least some wall modules can also consist of a plurality of parts rigidly connected to one another. Optionally, the front surface can have a covering or a coating in order to ensure certain surface properties. Usually the number of wall modules is at least 20, at least 40 or at least 60.

[0006] Furthermore, the training wall system has a plurality of spacers. Each of the spacers is preferably formed in one piece and is inherently rigid. The spacers can also be referred to as spacer elements. Their number usually corresponds at least to the number of wall modules, typically it is significantly higher. In particular, it can correspond to a multiple of the number of wall modules.

When assembled as intended, two wall modules are arranged side by side in each case in such a way that their side surfaces are opposite one another, with at least one spacer being interposed in a form-fitting manner between the side surfaces of adjacent wall modules and the wall modules being detachably connected to one another with the spacers being interposed such that their front surfaces together form a Form a reflection surface for a ball. When assembled as intended, the training wall system (or at least parts of it) forms the above-mentioned training wall. Two wall modules are arranged next to each other and a side surface of one wall module is opposite a side surface of the other wall module. However, these side faces are not directly in contact with one another, but rather at least one spacer is interposed in a form-fitting manner. I.e. the at least one spacer rests on the side surface of one wall module on the one hand and on the side surface of the other wall module on the other hand. As a result, a lateral distance between the adjacent wall modules is defined at least in the area of the spacer, namely by the dimensions of the spacer. Overall, a plurality of wall modules are arranged side by side in succession. Although it is possible at least in some embodiments of the training wall system to arrange at least some wall modules directly next to one another, it is intended that at least one spacer is arranged between the majority or between all wall modules that are adjacent to one another. Thus, the wall modules and the spacers are arranged alternately.

Overall, all wall modules are connected to one another with the interposition of the spacers in such a way that their front surfaces together form the above-mentioned reflection surface for the ball. That is, each front surface of a wall module forms part of the reflective surface, which includes the possibility that (usually a small) part of the front surface of a wall module does not belong to the reflective surface. The wall modules are detachably connected to each other, i.e. the training wall can be disassembled again if necessary by loosening the corresponding connection and either stowed away in a storage room or transported to another location. As will be explained further below, the individual elements can be designed to be particularly space-saving, even if the training wall has considerable dimensions when assembled. It goes without saying that the wall modules are rigidly connected to one another when assembled as intended, i.e. that the respective connection allows at most negligible movements of the wall modules relative to one another. The wall modules are connected to one another with the interposition of the spacers, with any forces being able to be transmitted between the wall modules by the spacers within the scope of the invention. At least, however, compressive forces acting between the side surfaces are transmitted by the spacers. Other forces can also be transmitted by additional elements.

The three-dimensional shape of the reflection surface is of course determined by the shapes of the individual front surfaces of the wall modules and by their arrangement to one another. The front surfaces can be designed identically for all wall modules, but wall modules with differently designed front surfaces can also be used. At least part of the wall modules preferably has a concave front surface, with the result that the reflection surface is also designed to be concave at least in sections. I.e. the front surface is concavely curved in the vertical direction from top to bottom (or vice versa). For example, the curvature may be parabolic or elliptical. In particular, the front surface can be overhanging in the upper area of the wall module, as a result of which a ball coming from below and hitting there tends to bounce back downwards.

The spacers create a gap between adjacent wall modules, which means that overall the width of the training wall is significantly larger than the sum of the widths of the individual wall modules. This contributes significantly to increasing the reflecting surface that can be recorded on. Another advantage is the flexible use of the training wall system according to the invention. The modular design allows, for example, an exchange of individual parts, e.g. individual wall modules or spacers, either to replace a damaged part or to use a part with different dimensions or properties. In addition, by varying the number of wall modules used, it is possible to adapt the overall dimensions of the training wall to almost any training requirement or the space available at the construction site.

In general, the training wall is suitable when assembled as a piece of sports and play equipment, e.g. for amateur and professional football on training pitches as well as on playgrounds and indoor facilities. Depending on the shot fired at the training wall, the ball can bounce back onto the field in different directions. This enables dynamic forms of training, e.g. in winning the ball, in defense and attack scenarios, condition, skill and speed training, reaction training, shooting training with both feet. As already mentioned, it can also be used for other ball sports.

Due to the presence of the spacers between the wall modules, the side surfaces of adjacent wall modules are spaced apart from one another. Normally, the front surfaces of adjacent wall modules are also laterally spaced apart from one another, at least in certain areas. This means that there is an intermediate space between the front surfaces, in which case the intermediate space can be formed either continuously along the entire height of the respective wall module or under certain circumstances only in certain areas. Under certain circumstances, the front surfaces of the adjacent wall modules can touch in certain areas. The width of the gap is determined by the dimensions of the at least one spacer and can be selected depending on the intended ball sport so that it is at least impossible for the ball to get into the gap and possibly get stuck there. For example, in the case of a soccer ball with a diameter of approx. 23 cm, provision could be made for the intermediate space to have a maximum width of 10 cm or 15 cm. With regard to the reflection behavior of the training wall, however, the width should be significantly smaller, e.g. a maximum of 5 cm or a maximum of 7 cm. Of course, this applies when the player wants the ball to bounce back in a way that the player can calculate. On the other hand, a larger gap could be selected or a gap that varies across the width or height of the training wall in order to make the movement of the ball after it hits the training wall unpredictable for the player and in this way to challenge him more. An advantage of the gaps can also be that you can see through the training wall.

According to an advantageous embodiment, each wall module has a height that is at least 10 times, preferably at least 20 times, greater than a width of the wall module. These statements relate to the properly assembled state in which the wall module is set up. The height and width of the wall module generally correspond to the height and width of its front surface. The respective wall module also has a depth whose maximum value is preferably at least five times greater than the width of the wall module. In particular, the wall module can be flat or plate-shaped. In particular, it can be manufactured in one piece from a single panel, which can consist, for example, of wood or wood-based material (e.g. multiplex). On the one hand, this simplifies the production of the wall module, on the other hand, the individual wall module has only a small volume when the training wall system is dismantled and can therefore be easily transported and stowed away. For example, the height of the wall module can be between 200 cm and 300 cm, while the width is between 4 cm and 10 cm. The depth can be between 50 cm and 100 cm, for example. Although this embodiment is not limited thereto, it is normally preferred for manufacturing reasons alone that the individual wall module is planar in itself. It is also preferred that in the assembled state at least most of the wall modules stand upright or are aligned vertically. That is, in the case of a flat wall module, its extension plane is preferably aligned parallel to the vertical (defined by the direction of gravity).

For structural stability, it is normally necessary to fix the lateral spacing between two adjacent wall modules at at least two vertically spaced points. This prevents the two wall modules from rotating or tilting relative to one another about the depth axis (ie the axis that runs in the depth direction). On the one hand, this can be achieved by a single spacer that has a corresponding vertical extension. For appropriate stabilization, however, this spacer must be made comparatively large, which increases weight and material consumption. It is therefore preferred that at least one upper spacer arranged higher and at least one lower spacer arranged lower are arranged between two wall modules. The at least one upper spacer is spaced apart from the at least one lower spacer in the vertical direction, with which the desired stabilization can be achieved. The individual upper and lower spacers only require a comparatively small amount of vertical expansion, i.e. they can be realized easily and in a material-saving manner. The upper and lower spacers can be arranged in particular in the upper and lower end areas of the wall module, so that a vertical distance between an upper and a lower spacer is at least 80%, preferably at least 90%, of the height of the wall module.

Likewise, it is useful to set the lateral distance between two wall modules at least two mutually spaced in the depth direction points. This is also possible in principle with a single spacer, which expands accordingly in the depth direction. However, it is preferred that at least one front spacer arranged closer to the front surface and at least one rear spacer arranged further away from the front surface are arranged between two wall modules. That is, the front and rear spacers are spaced in the depth direction (and optionally also in the height direction). Here, too, the individual spacer can be designed to be significantly smaller and more material-saving than a single spacer, the extent of which in the depth direction corresponds to the distance between the front and rear spacers. This embodiment can preferably be combined with the embodiment described above, in which case, for example, two upper and two lower spacers can be provided. In each case, an upper or lower spacer is a front spacer and the other upper or lower spacer is a rear spacer. Alternatively, it could also be sufficient, for example, to use a total of three spacers which span a triangle between them, for example two lower spacers and one upper spacer. Optionally, the front and rear spacers can be arranged in the front and rear end areas of the wall module, so that a depth distance (i.e. distance in the depth direction) between a front and a rear spacer corresponds to at least 50%, preferably at least 70%, of the depth of the wall module.

The training wall system preferably has at least one tension element, which is under tension when assembled as intended and pretensions a plurality of wall modules against one another. That is, the tension member is under tension and transmits a force to the plurality of wall modules, biasing them laterally toward one another. This prevents the wall modules from falling apart without the spacers or any additional elements having to apply the necessary forces, for example. It is possible here that the spacers only have to absorb compressive forces but no tensile forces, at least in the lateral direction. In particular, the at least one tension element can prestress all wall modules against one another. Normally, the tension element is connected directly or indirectly via a form fit to the two outermost wall modules of the plurality of wall modules and thus exerts a force on each outermost wall module due to its tensile stress. Furthermore, a flow of forces runs between these two outermost wall modules through the intermediate wall modules and the spacers. During assembly, the tension element can be tensioned by a suitable tensioning device. Different types of tensioning devices can be used here, the design of which also depends in particular on the design of the tension element.

In some configurations, the tie member could be formed as a substantially rigid tie rod made of, for example, steel or fiber reinforced plastic. However, it is preferred that the tension element is at least partially flexible. In particular, it can be designed at least partially as a cable, belt or chain. In the case of a rope or belt, a wide variety of natural fibers or synthetic fibers can of course be used, or it could also be a metal (e.g. steel) rope. The flexible configuration has various advantages. On the one hand, such a flexible tension element can be rolled up to save space or otherwise folded up when the training wall system is dismantled. On the other hand, it is also advantageous that a flexible tension element can take any course within the assembled training wall, for example straight, angled or curved. The courses mentioned can also alternate with one another in sections.

[0018] The wall modules preferably have first passage openings through which a tension element is guided. The first through openings, which can also be referred to as first through bores, traverse the respective wall module from one side surface to the opposite side surface, one could also say in a lateral direction. In the case of a panel-shaped wall module as described above, the corresponding panel can simply be drilled through for this purpose. One or at least one tension element is guided through the first passage openings—and thus through the wall modules. It goes without saying that in this embodiment the tension element forms a form fit in the vertical direction and in the depth direction with each wall module. Each wall module preferably has a plurality of first through-openings, it being possible for a separate tension element to be passed through each group of through-openings. However, it is also possible that, in the case of a flexible tension element, this is passed through a first group of first through-openings in one direction and through a second group of first through-openings in the opposite direction, with it looping out of a through-opening on an outer side surface of the outermost wall module - and is led back into another. In the case of a rope, a separately manufactured rope guide can be arranged on the outer side surface, which, for example, reduces the friction against the rope and thus counteracts twisting of the rope and damage.

Inevitably, in the embodiment shown above, the tension element is also passed between adjacent wall modules. In principle, it would be possible for the respective tension element to be offset (in the vertical direction and/or in the depth direction) with respect to the spacers that are also arranged between the wall modules. However, it is preferred that the spacers have second passage openings through which a tension element is guided. The second through-openings can also be referred to as through-holes and can be drilled in a simple manner, for example in the case of a spacer made of wood. They cross the respective spacer in the lateral direction. In the assembled state, a second through-opening of a spacer is arranged in alignment with the first through-openings of the wall modules adjoining it. In the lateral direction, the pulling element can run alternately through a first through-opening and a second through-opening. In the case of a flexible tension element in particular, one can also say that the spacers are threaded onto the tension element. A particular advantage here is the form fit that the tension element forms with each spacer in the vertical direction and in the depth direction. This means that on the one hand the spacers are clamped in the lateral direction between the adjacent wall modules, on the other hand they cannot move significantly either in the vertical direction or in the depth direction, which means that they are secured overall without the need for additional (e.g. non-positive or positive) securing means would be.

The modular construction of the training wall system from detachably interconnected parts has different advantages. In addition to simple assembly and disassembly, as well as simple storage and transport of the system, it is also possible to vary the shape of the training wall that has been set up. On the one hand, it would be conceivable that different wall modules, whose front surfaces are designed differently, could be combined with one another. As an alternative or in addition, it can be provided that spacers of different numbers and/or configurations can be arranged between two adjacent wall modules in order to set an inclination of the wall modules relative to one another. This means that the local distance between the adjacent wall modules can be varied by either arranging a different number of spacers one behind the other in the lateral direction (e.g. threading them one behind the other onto the tension element) or by using spacers of different widths. These two options can also be combined in any way. If, for example, a front spacer has a smaller width than a rear spacer or two rear spacers have a greater width overall than the front spacer, this results in an inclination of the adjacent wall modules about the vertical axis.

Preferred configurations of the invention are described below by way of example with reference to the figures. 1 shows various elements of a training wall system according to the invention; FIG. 2 perspective view of a spacer of the training wall system from FIG. 1; FIG. 3 shows an intermediate step in the assembly of a training wall from the training wall system from FIG. 1; Fig. 4 shows a sectional view of a detail of the training wall; 5 shows a plan view of the constructed training wall; and FIG. 6 shows a view of the training wall from direction VI in FIG. 5.

shows various elements of a training wall system 1 according to the invention, which forms a training wall 2 for football training in the intended constructed state. A wall module 10 can be seen in FIG. 1, which is formed in one piece from a panel made of wood or wood-based material (e.g. multiplex). It goes without saying that this board can be varnished, stained and/or coated to protect the wood and, if necessary, for color design. In this example, the wall module 10 has a height of 250 cm along a height direction H, while it has a maximum depth of 70 cm along a depth direction T and a width of 6 cm in a wide direction B. Overall, the panel-shaped wall module 10 can therefore be described as thin-walled, measured in terms of height and depth, which is why it can be easily transported and stowed away. The wall module 10 has a front surface 10.1, which has a concave, for example elliptical, profile along the height direction. Two flat side surfaces 10.2, 10.3 adjoin the front surface 10.1 on both sides, only a first side surface 10.2 being visible in FIG. The wall module can be rounded, machined and finished or ground on the front surface 10.1 (or at the transition to the side surfaces 10.2, 10.3).

The wall module 10 has a surface 10.4 at the top and a lower surface 10.5 at the bottom. The two last-mentioned surfaces are flat and run parallel to one another. A rear surface 10.6 is formed opposite the front surface 10.1 in the depth direction T, which is flat and runs vertically. The wall module 10 has a plurality of first through openings 11.1-11.4, which are each through holes in the wooden panel. One can see a front upper passage opening 11.1 arranged near the surface 10.4, a rear upper passage opening 11.2 offset thereto in the depth direction T, and a front lower passage opening 11.3 arranged near the bottom surface 10.5 and a rear lower passage opening 11.4 offset thereto in the depth direction T. Overall, the training wall system 1 can have, for example, between 40 and 80, in particular between 50 and 65, of the wall modules 10 shown. These can be designed in the same way. Alternatively, it would also be possible for some of the wall modules 10 to have a different profile, e.g. a non-elliptical profile, e.g. on their front surface 10.1.

The training wall system 1 also has a plurality of spacers 20-25, one of which can be seen in FIG. 1 and the enlarged view in FIG. The spacer 20 shown can also be made in one piece from wood or wood material. It has a height and depth of 5 cm each in the height direction H and in the depth direction T, for example, and a width of either 4 cm or 3 cm in the width direction B, the training wall system 1 having spacers 20-25 in the two widths mentioned . In the width direction B, a second passage opening 20.1 traverses the spacer 20, which can also be drilled.

Also belong to the training wall system 1 two ropes 30, 31, one of which is shown in Fig. 1 in the collapsed state. These ropes can be made of nylon or hemp, for example.

In order to anchor the finished training wall 2 in the ground, an anchoring element 35 shown as an L-profile in FIG. 1 can optionally be fastened to the rear surface 10.6 of some wall modules 10. The anchoring element 35 in turn can be screwed to the ground or secured by means of a peg 36, depending on the nature of the ground. It would also be possible to use the peg 36 directly as an anchoring element, in which case it is first driven into the ground and then secured by means of screws on the rear surface 10.6.

Fig. 3 shows a step in the construction of the training wall 2. The construction begins with a wall module 10, which can be secured, for example, by a support element 37 shown schematically against tipping over. A first cable 30 is guided through both upper passage openings 11.1, 11.2, with a section of the first cable 30 forming a form fit with a second side surface 10.3 opposite the first side surface 10.2. Optionally, a floating cable guide (e.g. made of wood) (not shown here) can be used there, which prevents the cable from twisting or being damaged

A 4 cm wide front upper spacer 20 is threaded onto the cable section guided through the front upper through-opening 11.1, in which the cable 30 is passed through the through-opening of the spacer 20 20.1. Two rear upper spacers 21, 22, one of which is also 4 cm wide and the other 3 cm, are threaded onto the rope section guided through the rear upper passage opening 11.2. In a corresponding manner, a second cable 31 is guided through both lower passage openings 11.3, 11.4, with a section of the second cable 31 forming a form fit with the second side surface 10.3. A 4 cm wide front lower spacer 23 is threaded onto the rope section guided through the front lower passage opening 11.3, while two rear lower spacers 24, 25, one of which is also 4 cm wide, are threaded onto the rope section guided through the rear lower passage opening 11.4 and the other 3 cm wide.

Next, a further wall module 10 is added by the sections of the first cable 30 being guided through its upper passage openings 11.1, 11.2 and the sections of the second cable 31 being guided through its lower passage openings 11.3, 11.4. The wall modules 10 are guided together with their opposite side surfaces 10.2, 10.3 as far as the intermediate spacers 20-25 allow. Since the front spacers 20, 23 only have a width of 4 cm, while the rear spacers 21, 22, 24, 25 together have a total width of 7 cm, a wall module 10 is about the vertical axis or the height direction H opposite the other wall module 10 inclined. Spacers with different overall widths are inserted in a corresponding manner between the next wall modules 10, so that these are also inclined towards one another. Overall, this results in a curved profile in a first section 2.1 of the training wall 2 in a top view, which is clearly visible in the top view in FIG. In a second section 2.2 of the training wall 2, only a 4 cm wide rear spacer 21, 24 is inserted, so that the wall modules 10 run parallel to one another in this area. The structure shown here is to be understood purely as an example and it is obvious that other curved or straight sections within the training wall 2 can also be produced by distributing the spacers 20 to 25 differently.

When all the wall modules 10 and spacers 20-25 are threaded onto the cables 30, 31 and positioned, the cables 30, 31 are tensioned. In order to achieve sufficient tensile stress, mechanical aids are usually necessary. For example, both ends of a rope 30, 31 could be secured to a metal plate which is then pushed away from the outermost wall module 10 by means of a jack. The tensioned position of the cable 30, 31 reached in this way can be secured by means of cable clamps 32 indicated schematically in FIGS. Under certain circumstances, this process must be repeated until a sufficient tensile stress in the cable 30, 31 is reached. After the cable clamps 32 are attached, the respective cable 30, 31 acts as a tension element which prestresses or braces all the wall modules 10 against one another. The interposed spacers 20 - 25 are clamped in a form-fitting manner between the wall modules, with an intermediate space 12 remaining between adjacent wall modules 10 . The sectional drawing in FIG. 4 clarifies once again how the first cable 30 is guided through the mutually aligned passage openings 11.2, 21.1, 22.1 of the wall modules 10 and the rear upper spacers 21, 22.

Fig. 6 shows a view of the constructed training wall 2 according to viewing direction VI in Fig. 5, i.e. only the (straight running) second section 2.2 is shown here. It is easy to see that the front surfaces 10.1 of the individual wall modules 10 form a reflection surface 3 of the training wall 2, against which a ball can be played for training purposes. The front surfaces 10.1 of adjacent wall modules 10 are laterally spaced from one another, but this is harmless since the width of the space 12 is approximately 4 cm and is therefore significantly less than the diameter of a soccer ball of over 20 cm. The concave shape of the front surfaces 10.1 along the height direction H ensures that, e.g. Thus, the ball gets back into an area where the player can reach it more quickly, which may require faster reactions from the player. Overall, by playing different areas of the reflection surface 3, a different rebound behavior of the ball can be achieved, which is sometimes difficult for the player to predict and thus challenges him to a greater extent. Of course, the training wall 2 can also be used by two or more players who, to a certain extent, pass the ball to one another "over the fence".

Reference list:

1 training wall system 2 training wall 2.1, 2.2 section 3 reflective surface 10 wall module 10.1 front surface 10.2,10.3 side surface 10.4 surface 10.5 lower surface 10.6 rear surface 11.1 - 11.4 through opening 12 intermediate space 20 - 25 spacer 20.1, 21.1, 22.1 through opening 30,31 rope 32.31 through opening Cable clamp 35 anchoring element 36 peg 37 supporting element B width direction H height direction T depth direction

Claims (10)

1. Training wall system (1) for ball sports, comprising: - A plurality of wall modules (10), each wall module (10) having a front surface (10.1) and laterally adjoining side surfaces (10.2, 10.3) on both sides, and - a plurality of spacers (20-25); in the intended assembled state, two wall modules (10) are arranged next to each other in such a way that their side surfaces (10.2, 10.3) face each other, with at least one spacer (20 - 25) interposed in a form-fitting manner between side surfaces (10.2, 10.3) of adjacent wall modules (10). and the wall modules (10) are detachably connected to one another with the interposition of the spacers (20 - 25) in such a way that their front surfaces (10.1) together form a reflection surface (3) for a ball. 2. Training wall system according to claim 1, characterized in that the front surfaces (10.1) of adjacent wall modules (10) are at least partially laterally spaced from one another. 3. Training wall system according to one of the preceding claims, characterized in that each wall module (10) has a height which is at least 10 times, preferably at least 20 times, greater than a width of the wall module (10). 4. Training wall system according to one of the preceding claims, characterized in that at least one upper spacer (20-22) arranged higher and at least one lower spacer (23-25) arranged lower are arranged between two wall modules (10). 5. Training wall system according to one of the preceding claims, characterized in that between two wall modules (10) there is at least one front spacer (20, 23) arranged closer to the front surface (10.1) and at least one spacer arranged further away from the front surface (10.1). rear spacers (21, 22, 24, 25) are interposed. 6. Training wall system according to one of the preceding claims, characterized in that this has at least one tension element (30, 31) which is under tension in the assembled state as intended and biases a plurality of wall modules (10) against one another. 7. Training wall system according to claim 6, characterized in that the tension element (30, 31) is at least partially flexible. 8. Training wall system according to claim 6, characterized in that the wall modules (10) have first passage openings (10.1 - 10.4) through which the tension element (30, 31) is passed. 9. Training wall system according to claim 6, characterized in that the spacers (20-25) have second passage openings (20.1, 21.1, 22.1) through which the tension element (30, 31) is guided. 10. Training wall system according to one of the preceding claims, characterized in that optionally spacers (20-25) of different number and/or design can be arranged between two adjacent wall modules (10) in order to adjust an inclination of the wall modules (10) relative to one another.