Mobile ski jumping facility

Abstract

Mobile ski jumping facility (100) with - a main tower (1) consisting of individual parts that can be detachably connected to one another, and - a landing hill element (20) consisting of detachably connectable individual parts, wherein the landing hill element (20) extends in the direction of the jump from a first end of the landing hill element (20) to a second end (21) of the landing hill element (21), wherein the landing hill element (20) can be assembled from its individual parts in a lying assembly position, characterized in that the first end of the assembled landing hill element (20) can be raised on a landing hill side of the assembled main tower (1) and can be connected to the main tower (1) in a raised position.

Description

[0001] The present invention relates to a mobile ski jumping facility, in particular one of a size that meets the requirements of an international sporting event, for example a World Cup ski jumping competition or a freestyle skiing event with the disciplines of aerials or big air. The terms "ski jumping" and "ski jump" here refer to both classic ski jumping disciplines and freestyle skiing disciplines such as aerials and big air, or other types of ski jumping on skis or snowboards.

[0002] Ski jumping competitions are typically held in mountainous regions with traditionally high snow reliability, where a permanent ski jumping facility has been built. This severely limits the potential venues for ski jumping competitions. Since ski jumping is also an Olympic discipline, the selection of host cities for the Olympic Games depends, among other things, on whether or not a suitable infrastructure, including a ski jumping facility, already exists. Constructing a new ski jumping facility often involves considerable costs and an environmental resource consumption that is disproportionate to the facility's use. Many permanent ski jumping facilities are no longer in regular operation and are falling into disrepair, thus marring the mountain landscape.

[0003] Climate change has also led to a frequent lack of snow at traditional venues, so when temperatures are sufficiently low, snow is sometimes artificially produced or transported by truck from glacier regions. Some ski jumping competitions are already being held on plastic mats. Since ski jumping no longer requires snow, competitions no longer need to take place in traditionally snowy regions. A mobile ski jumping facility opens up possibilities for ski jumping to be held in regions of the world where it was traditionally impossible.

[0004] DE 10 2012 102 074 A1 describes a mobile ski jump that is not suitable for international ski jumping competitions.

[0005] The purpose of the present disclosure is therefore to provide a mobile ski jumping facility that makes it possible to hold international ski jumping competitions in places where this has not previously been possible.

[0006] This problem is solved with a mobile ski jumping facility according to claim 1. Advantageous embodiments of the mobile ski jumping facility according to the invention can be found in the dependent claims, the description and the figures.

[0007] According to the invention, a mobile ski jumping facility is provided with - a main tower consisting of individual parts that can be detachably connected to one another, and - a landing hill element consisting of detachably connectable individual parts, wherein the landing hill element extends in the direction of the jump from a first end of the landing hill element to a second end of the landing hill element, wherein the landing hill element can be assembled from its individual parts in a lying assembly position, wherein the first end of the assembled landing hill element can be pulled up on a landing hill side of the assembled main tower and connected to the main tower in a pulled-up position.

[0008] Such a mobile ski jumping facility can, for example, be transported in individual parts to any location on Earth and assembled there. The location does not even need to be mountainous; it can be set up on flat or mountainous terrain. The assembled mobile ski jumping facility can have a hill size of up to 150 m or more. Since the largest stationary ski jump currently used in the Ski Jumping World Cup, located in Willingen (Mühlenkopfschanze), has a hill size of 147 m, an international ski jumping competition can be held with the mobile ski jumping facility according to the invention. Such heights are not necessary for freestyle skiing disciplines such as aerials and big air, or other types of ski jumping on skis or snowboards. The landing hill element can also be used for the inrun.

[0009] For classic ski jumping competitions, the mobile ski jumping facility can optionally have an inrun tower element consisting of detachably connectable individual parts, wherein the inrun tower element extends in the direction of the jump from a first end of the inrun tower element to a second end of the inrun tower element, wherein the inrun tower element can be assembled from its individual parts in a horizontal assembly position, wherein the second end of the assembled inrun tower element can be raised on one side of the inrun tower of the assembled main tower opposite the landing hill side of the assembled main tower, wherein the first end of the assembled inrun tower element can be pivoted upwards and the second end of the assembled inrun tower element can be connected to the main tower in a pivoted position of the first end of the assembled inrun tower element.

[0010] Optionally, the main tower can have four or more vertical masts and at least one horizontal bracing layer. The height of the main tower is preferably adjustable to the terrain. A nominal height is required on level ground; a taller main tower is needed if it is to be lower than the second end of the landing hill element, whereas a shorter main tower may suffice if an existing slope towards the second end of the landing hill element can be utilized. Minor lateral differences in elevation can be compensated for by using different mast lengths on the main tower. Traditional ski jumping competitions will likely require a taller main tower than freestyle skiing disciplines such as aerials and big air. A shorter tower height allows for a relatively small cross-sectional area of ​​the main tower, for example, 17m x 17m.A greater tower height may require a larger cross-sectional area of ​​the main tower for static reasons, for example 34m x 17m.

[0011] Optionally, the main tower masts can be designed as self-climbing masts. These masts can be constructed from individual components with truss bracing, similar to construction cranes. This is particularly advantageous for a wide and / or tall main tower used in traditional ski jumping competitions. A narrower and / or shorter main tower for freestyle skiing disciplines, such as aerials and big air, can potentially be erected more cost-effectively using a mobile crane.

[0012] The mobile ski jump is preferably assembled as follows: First, the main tower is erected. The landing hill side of the main tower forms the front, oriented in the direction of the jump. The inrun side of the main tower, opposite the landing hill side (i.e., the front), forms the back of the main tower. In an area in front of the main tower's front, the landing hill element is assembled from its individual parts in a horizontal position. The first end of the landing hill element, in this horizontal position, lies at the front of the main tower's base. In this horizontal position, the landing hill element extends forward in the direction of the jump to its second end, where a run-out area is located. In an area behind the back of the main tower, the inrun tower element is assembled from its individual parts in a horizontal position.The second end of the inrun tower element lies at the rear of the base of the main tower when the tower is in its horizontal position. The first end of the inrun tower element lies to the side and behind the main tower when the tower is in its horizontal position.

[0013] Once the main tower is erected, the first end of the assembled landing hill element is pulled up the front side of the main tower and secured in the raised position. The second end of the landing hill element remains on the ground and is mounted so that it can move towards the main tower when the first end is pulled up. For example, the second end of the landing hill element can rest on a tracked mechanism. Similarly, the assembled inrun tower element can be pulled up the back of the main tower. To do this, the second end of the inrun tower element is pulled up the back of the main tower. Like the second end of the landing hill element, the first end of the inrun tower element can rest on tracked mechanisms so that it can move towards the main tower when the second end is pulled up.Once the second end of the inrun tower has reached its final height, it can serve as a pivot point around which the first end of the inrun tower element is swung upwards. As the first end of the inrun tower element is swung upwards, a takeoff ramp of the inrun tower element is inserted through the main tower from the rear to the front, so that in its final position it is located above the first end of the landing hill element at the front of the main tower. The first end of the inrun tower element can then be guyed to the main tower in its final position.

[0014] Optionally, the first end of the assembled launch tower element can be pivoted upwards in a raised position of the second end of the assembled launch tower element.

[0015] Preferably, all individual parts of the main tower, the landing hill element and the inrun tower element have dimensions below the following maximum values: - a maximum length of 13.716 m, preferably 12.192 m or 6.058 m, - a maximum width of 2.438 m, and - a maximum height of 2.896 m, preferably 2.591 m. This is particularly advantageous so that all large individual parts do not exceed the dimensions of a standard 20-foot or 40-foot shipping container or a 20-foot, 40-foot, or 45-foot high-cube container. Smaller individual parts should ideally fit into a standard 20-foot or 40-foot shipping container, or alternatively into internationally standardized but less frequently used 20-foot, 40-foot, or 45-foot high-cube containers, in order to be transported as cost-effectively as possible to any location worldwide.

[0016] Optionally, the inrun tower element can be guyed to the main tower in a raised and swiveled position using guy wires. Unlike the landing hill element, the inrun tower element, in its raised and swiveled position, no longer has contact with the ground and is completely suspended from the rear of the main tower.

[0017] Optionally, the second end of the landing hill element can have a ground-level pivot point that is mounted so that it can move towards the main tower. For example, the ground-level pivot point can be mounted on a tracked carriage, allowing the ground-level center of gravity to move towards the main tower while the first end of the landing hill element is pulled up the front of the main tower.

[0018] Optionally, the main tower can have a top horizontal bracing level with a helicopter landing pad. This is useful so that rescue services can reach the scene quickly in the event of an accident. The top horizontal bracing level is preferably located above the take-off table of the inrun tower element.

[0019] Optionally, the inrun tower element can include a takeoff ramp that, in a raised and swiveled position, extends to the landing hill side (i.e., the front) of the erected main tower and is positioned above the raised first end of the landing hill element. The ski jumpers launch themselves from the takeoff ramp and then fly in the direction of the jump along the landing hill element, which is angled relative to the main tower, landing in a landing zone on a steep central section of the landing hill element and then running out towards the second end of the landing hill element.

[0020] Optionally, the main tower, the landing hill element, and / or the inrun tower element can be equipped with an emergency staircase. This is advisable to ensure a quick escape route to the bottom is available from anywhere on the mobile ski jump in case of emergency.

[0021] Optionally, the main tower, the landing hill element, and / or the inrun tower element can be equipped with a lift. The main tower can have a lift cabin located on or within one or more vertical masts, providing access to a horizontal bracing plane of the main tower. Alternatively or additionally, the landing hill element, which is angled relative to the main tower, can have a lift traveling along its length for transporting people or goods. It is also advantageous for ski jumpers to be able to use a lift traveling along the inrun tower element from a bracing plane of the main tower to the raised first end of the inrun tower element, from where they can launch their ski jump.

[0022] Optionally, a chain drive can be arranged at the second end of the landing hill element and / or at the first end of the inrun tower element to drive towards the main tower on the ground side, while the first end of the landing hill element or the second end of the inrun tower element is pulled up the main tower during the setup of the mobile ski jumping facility.

[0023] Optionally, the landing hill element can have at least three landing hill sections, which are connected to each other by at least two hinges. This allows the landing hill element to easily assume a shape adapted to the competition. For example, an upper landing hill section can be used for the approach run in freestyle skiing disciplines such as aerials and big air, thus eliminating the need for the inrun tower. A middle landing hill section can have one or more kickers and / or an uphill section. A lower landing hill section can form a landing and run-out area. One or more kickers on the middle landing hill section can be repositioned to adjust the athletes' flight paths for a safe landing in the lower landing hill section.The articulated connection between the landing hill sections allows for easy adjustment and modification of their respective gradients. The ski slope can be designed with corresponding flexibility, for example, using a trapezoidal sheet metal with horizontal ribs running perpendicular to the direction of the jump. These ribs allow for flexibility around a bending axis perpendicular to the direction of the jump, while stabilizing the slope against deformation around other axes. Furthermore, the transverse ribs prevent snow on the slope from sliding off.

[0024] The present invention will now be explained in more detail with reference to the accompanying figures, which show exemplary embodiments of the invention. In particular, they show Fig. 1 a perspective front view of an embodiment of a fully assembled mobile ski jumping facility according to the invention; Fig. 2 the mobile ski jumping facility according to Fig. 1 from a perspective rear view; Fig. 3 a detailed view of the in Fig. 1 mobile ski jumping facility shown; Fig. 4 a detailed view of the in Fig. 2 mobile ski jumping facilities shown; Fig. 5a-d Side views of an embodiment of the mobile ski jumping facility according to the invention at various times during the construction of the mobile ski jumping facility; and Fig. 6a,b Side views of a further embodiment of the mobile ski jumping facility according to the invention at different times during the construction of the mobile ski jumping facility.

[0025] Fig. Figure 1 shows an example of a mobile ski jumping facility 100 according to the invention in a fully assembled state. The mobile ski jumping facility 100 essentially consists of a main tower 1, a landing hill element 20, and an inrun tower element 33. The main tower 1 stands on four base elements 11, which are arranged in a rectangle. A vertical mast 2 extends upwards from each of the base elements 11. In the illustrated embodiment, five horizontal bracing planes 3, 4, 5, 6, 7 extend between the masts 2 at regular vertical intervals (see Figure 1). Fig. 2), wherein the bracing levels 3, 4, 5, 6, 7 have a vertical spacing of 15 to 25 m. The lowest level 7 can have a slightly greater distance of 20 to 30 m from the ground. This results in a total tower height of approximately 90 to 130 m. The height of the main tower can be adapted to the characteristics of the terrain on which the mobile ski jump 100 is erected. In the illustrated embodiment, the terrain on which the main tower 1 is erected to its full height is relatively flat.

[0026] In Fig. 1 and Fig. In Figure 3, the viewer's perspective is slightly upward, looking at the front of the main tower 1, which is also referred to here as the landing hill side of the main tower 1. Fig. 2 and Fig. In contrast, in 4 one looks from a perspective downwards at a rear side of the main tower 1, which is also referred to here as a runway tower side of the main tower 1.

[0027] The main tower 1 has an elevator 8 on each of its masts 2, used for transporting people and / or goods to one of the levels 3, 4, 5, 6, or 7. A helicopter can land on the top level 3. The second-to-top level 4 contains a takeoff ramp 9 of the inrun tower element 33. Level 4 of the takeoff ramp 9 can also accommodate coaches and / or TV crews. The third level 5 can house athletes' changing rooms and containers for various infrastructure, such as testing stations. The lowest level 7 and the second level 6 above it are not normally accessed and serve solely for the structural bracing of the main tower 1.

[0028] The base elements 11 can be weighted with ballast in the form of water containers, sand, or concrete to increase the stability of the main tower 1. A hydraulic climbing device can be located in the lower section 14 of each mast 2. This device allows individual mast sections to be inserted laterally and then simultaneously hydraulically pushed upwards, enabling the masts 2 to grow self-climbing from the bottom up during the construction of the main tower 1. The bracing levels 3, 4, 5, 6, and 7 are also installed between the masts 2 at the bottom during assembly, each consisting of individual components. They are then pushed upwards in the lower mast sections 14 by the hydraulic climbing device, allowing the main tower 1 to gradually grow upwards during construction.

[0029] The landing hill element 20 is connected at one end to the front of the main tower to the second-highest stiffening level 4. A second end 21 of the landing hill element 20 rests on the ground, so that the finally assembled landing hill element 20 extends obliquely downwards from the second-highest level 4 of the main tower 1 towards the ground. The landing hill element 20 has two main beams 22 running longitudinally along the landing hill element 20, and preferably parallel to each other, of which only one main beam 22 is shown in the figures. The main beams 22 support a landing hill surface 32 via transverse elements 23. The landing hill surface 32 extends in an S-shape from the upper first end of the landing hill element 20 to the lower second end 21 of the landing hill element 20.In the upper part of the landing hill element 20, the landing hill surface 32 is convexly curved, and in the lower part of the landing hill element 20, the landing hill surface 32 is concavely curved. The landing zone for the ski jumpers is located in a centrally steep section of the landing hill surface 32. The landing hill surface 32 is enclosed laterally by boundary barriers 24 to prevent ski jumpers from falling laterally off the landing hill element 20. A lift 31 is arranged on a main support 22 below the landing hill surface 32, allowing people or loads to be transported up the landing hill element 20.

[0030] The lower second end 21 of the landing hill element 20 can be movably mounted on track drives 26 on the main tower 1, so that the second end 21 of the landing hill element 20 can move towards the main tower 1 when the first end of the landing hill element 20 is raised on the main tower 1. The landing hill element 20 can therefore have a pivot point 25 about which it pivots when it is raised on the main tower 1. The landing hill surface 32 can be divided at the pivot point 25, so that the second end 21 of the landing hill element 20 moves exclusively translationally towards the main tower 1 during assembly. The two-part landing hill surface 32 then closes at the pivot point 25 when the first end of the landing hill element 20 is raised on the main tower 1.

[0031] On the side of the landing hill element 20, supported by support columns 28, are structures for a judges' booth 29 and / or commentators' booths 30 as well as lighting for the landing hill surface 32.

[0032] As in Fig. 2 and Fig. As can be clearly seen in Figure 4, the inrun tower element 33 also has two main girders 34, which support an inrun track 36 by means of crossbeams 35. The inrun track 36 is concavely curved and extends from an upper first end 42 of the inrun tower element 33 to the takeoff table 9, which extends through the main tower 1 to the front of the main tower 1 and is located above the upper first end of the landing hill element 20 on the second-highest level 4 of the main tower 1. The upper free first end 42 of the inrun tower element 33 is braced to the uppermost level 3 of the main tower 1 by guy wires 43. On the underside of the upper first end 42 of the inrun tower element 33 are track carriages 38, on which the first end 42 of the inrun tower element 33 can travel towards the main tower 1 during assembly on the ground.Elevators 39 can transport the ski jumpers from the third level 5 to a starting point near the upper first end 42 of the inrun tower element 33. The main girders 34 of the inrun tower element 33 are also equipped with stairs for emergencies.

[0033] In the Fig. 3 and Fig. Four cable pulley systems are shown, which are used for the construction of the mobile ski jumping facility 100, which is assembled in four steps in Fig. Figures 5a-d show a schematic representation. The cable system for raising the first end of the landing hill element 20 can include pulleys 10 and 27, which can be drawn towards each other via a block and tackle principle. A winch system can be located at the pivot point 25 of the landing hill element 20. The winch system at the pivot point 25 can pull a steel cable over the pulleys 10 and 27, thus shortening the distance between the pulleys 27 and 10, and consequently raising the front of the landing hill element 20 at the main tower 1. The lower pulleys 27 are located at the first end of the landing hill element 20, and the upper pulleys 10 are located at the second level 4 of the main tower 1.

[0034] Similarly, the second end of the launch tower element 33 can be pulled up the rear of the main tower 1 via the pulleys 12 and 37. The upper pulleys 12 are located on the second-highest level 4 of the main tower 1 and are connected to the pulleys 37 at the second end of the launch tower element 33 via a block and tackle system. A winch system can be located at the first end 42 of the launch tower element 33, which winds one or more cables in such a way that the distance between the pulleys 12 and the pulleys 37 is reduced, enabling the launch tower element 33 to be pulled up the rear of the main tower 1. To pivot the first end 42 of the launch tower element 33 upwards, a further cable pulley arrangement with deflection pulleys 13, 40 is provided in order to pivot the launch tower element 33 about a pivot axis located at the second end of the launch tower element 33 into the final position of the launch tower element 33.Additional pulleys 41, which can also be configured as winches, are used to brace the first end 42 of the launch tower element 33 to the main tower 1. The pulleys 41 are located on the uppermost level 3 of the main tower 1.

[0035] In Fig. Figures 5a-d schematically show four states of an exemplary embodiment of the mobile ski jumping facility 100 during assembly in a side view. Fig. In step 5a, the main tower 1 is already fully erected. Furthermore, the landing hill element 20 is already assembled from its individual parts in a horizontal position and lies in front of the main tower 1, so that the first end of the landing hill element 20 rests at the front of the base of the main tower 1. Similarly, the inrun tower element 33 is already assembled from its individual parts in a horizontal position. The inrun tower element 33 lies behind the main tower 1, so that the second end of the inrun tower element 33 rests at the rear of the base of the main tower 1. Using one or more pull ropes, the first end of the landing hill element 20 is pulled up to the second-highest level 4 of the main tower 1. This causes the landing hill element 20 to be positioned diagonally against the main tower 1, with the second end 21 of the landing hill element 20 remaining on the ground and moving towards the main tower 1 as the first end of the landing hill element 20 is pulled up.Preferably this is done on the tracked running gear 26. In . Fig. 5b is the final position of the landing hill element 20.

[0036] The second end of the inrun tower element 33 is then pulled up the rear of the main tower 1 using one or more steel cables. Initially, the first end 42 of the inrun tower element 33 remains on the ground and, while the second end of the inrun tower element 33 is being pulled up, travels on the track system 38 towards the main tower 1. Fig. 5c, the second end of the inrun tower element 33 has reached its final height. The second end of the inrun tower element 33 then becomes a pivot point around which the first end 42 of the inrun tower element 33 is pivoted upwards. In Fig. Figure 5d shows the final position of the inrun tower element 33. The first end 42 of the inrun tower element 33 is guyed to the main tower 1 with guy wires 43. After swinging upwards, the inrun track 36 extends through the main tower 1 to the front of the main tower 1 and is located above the first end of the landing hill element 20. Fig. 5d is the mobile ski jumping facility 100 fully assembled as it is also in Fig. 1 to 4 can be seen.

[0037] The dismantling of the mobile ski jumping facility 100 is carried out in reverse order. With the mobile ski jumping facility 100, spectacular ski jumping competitions can be held almost anywhere in the world, eliminating the need to construct an expensive and rarely used permanent facility in the landscape. The entire mobile ski jumping facility 100 can be packed and transported in an estimated 200 to 300 standard shipping containers, making a world tour for the world's best ski jumpers possible. Irrigated plastic mats, similar to those already used in permanent ski jumping facilities, can be used for the landing hill 32. Irrigated ceramic elements and / or chilled ice track elements, also similar to those already used in permanent ski jumping facilities, can be used for the inrun track 36.The individual parts of the main tower 1, the landing hill element 20 and / or the inrun tower element 33 may preferably consist of statically stable support shapes and materials, for example metal, plastic and / or fiber composite materials.

[0038] The embodiment according to Fig. 6a, b does without the inrun tower element 33 and is primarily used for freestyle skiing disciplines such as aerials and big air. The landing hill element 20 consists of three landing hill element sections 20a, b, c. A first landing hill element section 20a serves as the inrun and is pulled up the main tower 1 at one end, while a second end of the first landing hill element section 20a remains on the ground on a track system 26, so that the first landing hill element section 20a can be positioned at an angle against the main tower 1. A second landing hill element section 20b is articulated at one end to the first landing hill element section 20a by means of a first joint connection 45.Since the first joint 45 is spaced apart from a second end of the first landing hill element section 20a, the first end of the second landing hill element section 20b is also erected when the first landing hill element section 20a is erected. The second end of the second landing hill element section 20b is connected to a first end of the third landing hill element section 20c by means of a second joint 47. A hydraulic cylinder 49 between the second landing hill element section 20b and the third landing hill element section 20c can adjust the angle between the second landing hill element section 20b and the third landing hill element section 20c. A second end of the third landing hill element section 20c rests on a tracked chassis 26 on the ground, analogous to the second end of the first landing hill element section 20a.This causes the third landing hill section 20c to rise by means of the hydraulic cylinder 49, whereby the second landing hill section 20b aligns itself approximately horizontally at the level of the joint connections 45, 47. The second landing hill section 20b serves to accommodate one or more kickers 51 and / or an uphill ramp. The third landing hill section 20c serves as a landing and run-out area. The kicker(s) 51 can be repositioned on the middle landing hill section 20b to adjust the athletes' flight paths for a safe landing in the lower landing hill section 20c. The main tower 1 can be, in the embodiment shown in the figure below, Fig. 6a,b can be designed to be shorter and therefore with a smaller cross-sectional area. Therefore, it may be more economical to erect the main tower 1 using a separate mobile crane rather than a self-climbing system. Reference symbol list 100 Mobile ski jumping facility 1 Main Tower 2 masts 3. Stiffening level 4. Stiffening level 5 stiffening level 6. Stiffening level 7. Stiffening level 8 Elevator 9 ski jump table 10 pulleys 11 Base element 12 pulleys 13 pulleys 14 Lower mast area 20 Landing hill element 21 second end of the landing hill element 22 main beams 23 transverse elements 24 boundary barriers 25 pivot point 26 track drive 27 pulleys 28 support columns 29 Jump Judges' Booth 30 commentator booth 31 Elevator 32 landing hill area 33 Run-up tower element 34 main girders 35 crossbeams 36 approach track 37 pulleys 38 track drive 39 elevators 40 pulleys 41 pulleys 42 first end of the approach tower element 43 guy wires 45 first joint connection 47 second joint connection 49 hydraulic cylinders 51 Kicker

Claims

[1] Mobile ski jumping facility (100) with - a main tower (1) consisting of individual parts that can be detachably connected to one another, and - a landing hill element (20) consisting of detachably connectable individual parts, wherein the landing hill element (20) extends in the direction of the jump from a first end of the landing hill element (20) to a second end (21) of the landing hill element (21), wherein the landing hill element (20) can be assembled from its individual parts in a lying assembly position, characterized by , that the first end of the assembled landing hill element (20) can be raised on a landing hill side of the erected main tower (1) and connected to the main tower (1) in a raised position. [2] Mobile ski jumping facility (100) according to claim 1, comprising an inrun tower element (33) consisting of detachably connectable individual parts, wherein the inrun tower element (33) extends in the direction of the jump from a first end (42) of the inrun tower element (33) to a second end of the inrun tower element (33), wherein the inrun tower element (33) can be assembled from its individual parts in a horizontal assembly position, wherein the second end of the assembled inrun tower element (33) can be raised on one of the inrun tower sides of the assembled main tower (1) opposite the landing hill side of the assembled main tower (1), wherein the first end (42) of the assembled inrun tower element (33) can be pivoted upwards and the second end of the assembled inrun tower element (33) can be connected to the main tower (1) in a pivoted position of the first end (42) of the assembled inrun tower element (33). is. [3] Mobile ski jumping facility (100) according to claim 1 or 2, wherein the main tower (1) has four or more vertical masts (2) and at least one horizontal stiffening plane (3, 4, 5, 6, 7). [4] Mobile ski jumping facility (100) according to claim 3, wherein the masts (2) are designed as self-climbing masts. [5] Mobile ski jumping facility (100) according to one of claims 2 to 4, wherein the first end (42) of the assembled inrun tower element (33) is pivotable in a raised position of the second end of the assembled inrun tower element (33). [6] Mobile ski jumping facility (100) according to one of the preceding claims, wherein all individual parts of the main tower (1), the landing hill element (20) and / or the inrun tower element (33) have dimensions below the following maximum values: - a maximum length of 13.716m, preferably 12.192m or 6.058m, - a maximum width of 2.438m, and - a maximum height of 2.896m, preferably 2.591m. [7] Mobile ski jumping facility (100) according to one of claims 2 to 6, wherein the inrun tower element (33) is suspended from the main tower (1) by guy wires (43) in a raised and swiveled position. [8] Mobile ski jumping facility (100) according to one of the preceding claims, wherein the second end (21) of the landing hill element (20) has a ground-side pivot point (25) which is movably mounted on the main tower (1). [9] Mobile ski jumping facility (100) according to one of the preceding claims, wherein the main tower (1) has an uppermost horizontal stiffening plane (3, 4, 5, 6, 7) with a helicopter landing pad. [10] Mobile ski jumping facility (100) according to any one of the preceding claims 2 to 9, wherein the inrun tower element (33) has a jump table (9) which, in a raised and pivoted position of the inrun tower element (33), extends to the first side of the erected main tower (1) and is arranged above the raised first end of the landing hill element (20). [11] Mobile ski jumping facility (100) according to one of the preceding claims, wherein the main tower (1), the landing hill element (20) and / or the inrun tower element (33) has an emergency staircase. [12] Mobile ski jumping facility (100) according to one of the preceding claims, wherein the main tower (1), the landing hill element (20) and / or the inrun tower element (33) has a lift (8, 31, 39). [13] Mobile ski jumping facility (100) according to one of the preceding claims, wherein a chain drive (26, 38) is arranged at the second end (21) of the landing hill element (20) and / or at the first end of the inrun tower element (42). [14] Mobile ski jumping facility (100) according to one of the preceding claims, wherein the landing hill element (20) has at least three landing hill element sections (20a,b,c) which are articulated to each other by means of at least two articulated joints (45, 47).

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