WO2014196493A1

WO2014196493A1 - Recreational equipment for ski jumping

Info

Publication number: WO2014196493A1
Application number: PCT/JP2014/064584
Authority: WO
Inventors: 宣広押部
Original assignee: 株式会社レスポンスエンジニアリング
Priority date: 2013-06-03
Filing date: 2014-06-02
Publication date: 2014-12-11
Also published as: JP5943225B2; EP3000512A1; EP3000512A4; JPWO2014196493A1; KR20160009645A

Abstract

[Problem] To provide recreational equipment for ski jumping that is provided with a landing section artificially similar to a curved surface of a snow surface and can ensure safety by sufficiently absorbing impact. [Solution] Recreational equipment for ski jumping comprises: an approach section (110) that comprises an in-run face (116) and a take-off (117) and comprises an artificial curved face that allows the run-up to the take-off to be performed smoothly; and a landing section (120, 130, 140, 150, 160) that comprises an air mat filled with air and a blowing device that sends air into the air mat and for which at least a portion of the air mat surface is a landing and a slope for gliding and decelerating. The slope shape can be maintained by way of providing a plurality of partition membranes (133) that join the upper face of an inner wall and the lower face of an inner wall inside the air mat in the landing section, even when the air pressure inside the air mat is increased. The air in the air mat can be efficiently moved and dispersed internally so as to ease the impact.

Description

Ski jumping equipment

The present invention relates to ski jump practice equipment in sports facilities. In particular, the present invention relates to a snow sports jumping game facility that allows athletes to practice jumps in snow sports such as skiing and snowboarding, and that general players can easily experience.

As a game facility for snow sports jumping in the prior art, it has an approach part and a landing part, and the approach part uses natural terrain such as hills and mountain slopes, or is formed with scaffolding An artificial slope was made by laying a ski run mat on the artificial slope. In addition, in order to weaken the impact of landing on the landing part, there are ski jump play facilities (such as Japanese Patent Laid-Open No. 11-29904) provided with a landing slope in the same way as the ski jumping table for competitions, and when there are restrictions on the installation location In addition, there is known an example in which a landing pool filled with a water surface such as a pond or a pool or a shock absorber such as a sponge is provided (Japanese Patent Laid-Open No. 2001-70497).

In particular, the latter is a type that is introduced in a place where the area of the game facility is large and difficult to secure, and as shown in FIG. I experienced jumping by jumping into the water and sponges in the pool, etc., and advanced practice for water key jump competition and aerial competition.

JP-A-11-29904 JP 2001-70497 A

However, the conventional snow sports jump game facilities as described above have problems in both the approach section and the landing section.

First, the problem of the approach part is described.
The approach part is the part that accelerates mainly to obtain the jumping speed of the competitor when jumping. However, in order to obtain a sufficient jumping speed, an approach part with a long distance and a large angle is required. In particular, if the equipment is equipped with a running surface such as artificial turf instead of the snow surface, it is necessary to secure a long approach section to obtain the same acceleration as the snow surface. There was a problem that lengthened.

In addition, in the actual ski jumping table, from the start of the approach at the approach section to the so-called J-curve and crossing toward the jumping table, a complex acceleration / deceleration feeling of acceleration, deceleration, and climbing can be obtained. Even in the approach part, if you can't get the same acceleration / deceleration feeling of acceleration, deceleration, and climb, you can't practice. It is also important how to keep the length of the approach part short while maintaining this feeling.
In addition, since the skis run the running surface at high speed, the artificial turf provided on the running surface is easily damaged.

Next, there was a big problem in the landing section.
In the ski jump play equipment with the landing slope similar to the former ski jumping table described above, since the landing part is a hard slope, a slope of a considerable distance is necessary for the athlete to decelerate safely after landing. As a result, there is a problem that the entire length and installation area of the play equipment increase. If it is a play facility that uses ski slopes in the mountains, it can be assumed that the length of the entire play facility and the installation area are not a big problem, but if the space available in the city is limited, the approach part If it is a type in which a scaffold is artificially assembled from the landing to the landing part, the cost will increase if the overall length and installation area of the play equipment increase.

On the other hand, in the case of the latter water jump game facility, the size of the landing portion can be relatively suppressed as compared with the former, and the length and installation area of the entire game facility can be made compact.
However, according to the water jump game facilities, the surface of the water such as the sea or pool is used as the landing surface, so there is a shock due to water pressure at the time of collision or a physical shock due to a sudden change in temperature, etc. However, there is a problem that it cannot be said that it is necessarily ensured high. Furthermore, because the water surface is used for landing, the period of use is limited to the summer, and the amusement facility cannot be used during the period from autumn to early winter when the player wants to practice jumping.
In addition, the player must experience and practice while wearing shock-resistant equipment and a suit such as a life jacket and a wet suit. Such equipment has a feeling of wearing, and feels different from the actual ski jump.

If you are a beginner and you want to experience only one day as a leisure, you may be able to experience wearing such equipment, but you may be able to experience it, but you are a beginner but you want to continue ski jumping frequently as a hobby For those who wish to continue practice as a competitor, the practice with such equipment may differ from the situation during the competition and may not be practiced.

In addition, in the water jump game facility, the landing will be continued as it is, so it is not clear whether the jump is successful or unsuccessful. In other words, when flying on a full-fledged ski jumping platform, there is a problem that it cannot be determined whether or not to properly stand on the snow surface.

Therefore, in order to solve the above-described problems, the present invention provides a landing portion that is simulated by laying an air mat on a slope of a landing portion that is formed on the snow surface of a conventional ski jumping table and that is close to the snow surface. Another object of the present invention is to provide a ski jumping play facility that sufficiently absorbs shock and ensures safety.

In order to achieve the above object, the ski jumping play equipment of the present invention includes a running surface and a cante, an approach portion having a pseudo curved surface so that smooth running can be performed from the running to the crossing, and the inside is filled with air. An air mat, and a blowing device for sending air into the air mat, and a landing portion in which at least a part of the surface of the air mat is finished to a sloping surface that decelerates and lands, and an inner wall upper surface in the air mat of the landing portion A ski jump play facility characterized in that the slope shape is maintained even when air pressure is applied to the air mat by providing a plurality of partition walls connecting the lower surface of the inner wall and the inner wall.

The direction in which the partition film is provided is, for example, provided in the air mat along the front-rear direction of the landing portion.
The shape of the partition wall film is not limited, but as an example, a structure in which a hole or a mesh structure is provided in at least a part of the partition wall film is used. By providing such a hole or mesh structure, the air inside the air mat can be diffused through the partition membrane, and the impact of landing is affected by the elasticity of the air mat and the air in the air mat. Can be softened by diffusion.

Next, a device for facilitating maintenance of the air mat will be described. The air mat can be damaged. When the user landing on the air mat, the pressure in the air mat changes greatly, and vibration is also conducted, so that a large load is applied to the sheets and the partition film of the air mat. The same applies when landing fails.
If the damaged part is the outer surface of the air mat or the like, it is relatively easy to perform maintenance such as reattaching from the outside, but if the inside of the air mat, especially the partition film, is damaged, the maintenance is very difficult. The air mat is a long one, and is a partition film stretched around it. Therefore, it is a very difficult task just to find out which part is broken.

Therefore, a device is provided in which a cutting portion having a cutting strength weaker than that of the other partition film structure is provided in the vicinity of the hole or mesh structure of the partition film. If a force exceeding the cutting strength is applied to the partition wall film by the user's landing, the cutting portion is configured to cut. By providing places that are easy to cut in this way, it is easy to find and maintain breakage and deterioration points efficiently by checking several cuts at known positions in a large air mat. Will be able to do.

Next, the device for slowing and stopping the sliding of the user using the air mat will be described.
In order to suppress the length of the installation area of the ski jump game facility, it is preferable to provide a structure that supports deceleration and stop in the air mat. As described above, the partition wall film is provided so as to connect the upper surface of the inner wall of the air mat and the lower surface of the inner wall, and irregularities appear on the surface of the air mat, but the partition wall film extends along the left and right direction of the landing portion near the tip of the air mat. Shall be provided. By doing so, the unevenness is repeated in the traveling direction of the ski of the user who is decelerating, so that further deceleration is possible.
In addition, it is also preferable that the end portion of the air mat is folded upward so that the tip has a certain height and serves as a stopper.

Next, I will describe the device for draining air mats. It is assumed that the ski jumping game facility is installed outdoors, but it is conceivable that moisture adheres to the air mat surface due to rain, condensation, frost and the like. There is an inclination at the top of the air mat, and moisture falls downward along the inclination, but the vicinity of the tip of the air mat is a deceleration zone and a stop zone, and is substantially horizontal. That is, moisture tends to accumulate near the tip of the air mat. In particular, since a groove is formed on the surface of the air mat where it is bonded to the partition wall film, moisture easily accumulates in the groove. Therefore, in the present invention, it is preferable that the groove formed on the surface of the air mat by being joined to the partition film near the tip of the air mat is inclined rightward or leftward. Moisture that has fallen on the surface near the tip of the air mat due to this inclination is drained to the left or right side of the air mat along the inclination.

Next, I will describe the device in the upper part of the air mat. If the upper part of the air mat is a normal jumping table, a substantially horizontal table part is provided near the upper end of the air mat, and a knoll for starting the inclination is provided. In the present invention, the upper part of the air mat is inclined near the upper end. It is preferable to finish with. Originally, the table part is a space that does not physically fall off when ski jumping is performed at the assumed initial speed, and it is simply created as a horizontal table part, and the slope of the landing part is built in by providing a nor part Yes. However, in the case of a so-called failure jump, for example, when the vehicle falls over at the approach part and falls down directly beyond the crossing platform, there may be an accident that falls directly on the table part. Since the normal table portion is substantially horizontal, the height of the drop from the tip of the take-off table may be several meters, which may cause injury. Therefore, in the ski jumping game equipment of the present invention, the slope is finished to the vicinity of the upper end of the air mat in order to reduce the drop height from the tip of the take-off platform and to disperse the dropped impact.

Next, the device of the approach part will be described.
Dividing the pseudo curved surface of the approach portion into a running surface of a central belt and side portions provided on both ends of the running surface, the friction coefficient of the surface of the running surface is smaller than the friction coefficient of the surface of the side portion, It can be devised so that the player can easily run when the run-up is performed on the run-up surface, and decelerate the run when the player goes out of the course.

In this way, by dividing the pseudo curved surface of the approach part into the running surface of the central belt and the side parts on both sides, the player can be guided to slide on the central belt, and the running surface can be normally slid. You can accelerate when you are running, and you can decelerate when you go out of the course and ski on the side.

In addition, the surface of the approaching surface of the approach part is covered with artificial turf, but artificial turf is made of plastic material. Since the ski passes at high speed, frictional heat is generated, and when the ski is used repeatedly, the artificial turf may melt due to the frictional heat. In view of this, a sprinkler is arranged in the area where the ski slides, which spouts water from below toward the surface of the artificial turf. If water is spouted from the sprinkler, the surface of the ski can be cooled directly with water, the artificial turf itself can be cooled, and frictional heat can be removed.

Next, the idea of the pseudo curved surface of the approach part will be described.
Originally, the approach portion is preferably formed with a smooth curved surface, but it is difficult to form the entire surface of a long distance approach portion with a smooth curved surface. Therefore, the approach portion of the ski jump play facility of the present invention forms a pseudo curved surface of the approach portion in a pseudo manner by joining the planar plate members and changing the angle between the joint portions between the plate members. . Here, the vertical width of the plate member is used separately at a location where a descending inclination angle is provided and a location where an ascending inclination angle is provided. For places where the inclination angle is lowered at the approach part, plate members having a vertical width of 5 m or more are connected within a relative angle of 5 degrees, and for places where the inclination angle is raised, the vertical width is 1 m or less. These plate members are joined at a relative angle of 1 degree or more and 3 degrees or less, and joined at different joining angles between the plate members so as to approximate the curved surface of the jump table.

Due to the above configuration, the ski used by the player has a length of about 1 m50 cm to 2 m, and there is a vertical width of 5 m or more at the portion provided with the inclination angle that descends at the approach part. Either it is on one plate member or the ski board straddles only one joint part of the plate member, and the ski board does not straddle two joint parts of the plate member. Further, the change is within 5 degrees at 5 m, that is, within 1 degree at 1 m. According to the inventor's research over many years, it was found that if the change is less than 1 degree at 1 m, the athlete feels not much of the angle change but feels a greater acceleration of downhill. On the other hand, since the vertical width of 1 m or less is provided at the portion where the inclination angle rising at the approach portion is provided, the key plate straddles two joint portions of the plate member. Further, when the angle is 1 to 3 degrees with a vertical width of 1 m or less, the change is 1 degree or more at 1 m. According to the inventor's many years of research, it has been found that if the change is 1 degree or more at 1 m, the player feels the angle change greatly. In addition, if the change angle is too large, unevenness is felt, but if it is within 1 m3 degrees, the unevenness is hardly felt.
In this way, by adjusting the number of skis across the joint and the degree of angle change of the sliding surface, you can feel a linear acceleration feeling in the descending sliding area at the approach part, In a portion where the rising inclination angle is provided, it is possible to feel a curved angle change toward the upper side.

Next, in the approach section, it is important how to accelerate the run-up speed of the player to a predetermined speed. Increasing the installation length of the approach section will increase the run-up distance and increase acceleration, but if the acceleration at the approach section can be increased, the installation length of the approach section can be shortened as much as possible. Therefore, attention was paid to the angle of the surface of the plate member immediately before the portion that turned upward toward the jump in the pseudo curved surface of the approach portion. In the pseudo-curved surface of the normal approach part, the slope of the surface immediately before the part that turns up toward the jump is zero, that is, a part that becomes almost horizontal is provided, and it is made to rise after the acceleration band disappears, The inventor has intensively studied, and by setting the angle of inclination immediately before the point where the jump starts to rise to 5 degrees to 10 degrees, the player feels as if the acceleration band disappears by turning horizontally. I understood. In other words, because the inclination angle is still 5 to 10 degrees, it is part of the acceleration band and continues to accelerate slightly, but it turns out that the player feels as if the acceleration band is gone. . By making such a device, the length of the acceleration band is slightly increased and the length of deceleration is slightly shortened, so that the initial jumping out speed at the crossing can be increased as much as possible. That is, the effect of shortening the length of the landing portion for obtaining the same jumping out initial speed can be obtained.

According to the ski jumping play equipment according to the present invention, a plurality of partition walls connecting the upper surface of the inner wall and the lower surface of the inner wall are provided in the air mat of the landing portion, thereby forming a necessary curved surface even when air pressure is applied to the air mat. In addition, by providing a hole or mesh structure in the partition wall film, the air inside can diffuse through the partition wall film, and the elasticity and impact absorbing ability can be imparted to the air mat.
In addition, by devising the partition wall film, it is possible to improve the maintainability of the air mat and to increase the deceleration / stop performance. Further, drainage can be improved by devising the inclination of the groove formed at the location where the partition wall film is joined.
In addition, by arranging a sprinkler that spouts water from the bottom toward the surface of the artificial turf at the approach section, the ski surface can be directly cooled with water, and the artificial turf itself can also be cooled. And frictional heat can be removed. Further, by devising the slope of the curved surface of the approach part, the length of the approach part can be shortened as much as possible while making the player feel natural acceleration and deceleration.

Hereinafter, embodiments of the present invention for ski jumping will be described. The present invention is not limited to these examples.

Hereinafter, a configuration example of a ski jump game facility according to the present invention will be described with reference to the drawings.
FIG. 1 is a diagram showing a ski jump game facility according to the present invention according to a first embodiment.
FIG. 1 is a perspective view.

As shown in FIG. 1, the ski jumping play equipment 100 according to the present invention mainly includes two parts: an approach part that performs up to running, acceleration, and crossing, and a landing part that performs landing, deceleration, and stopping. ing. In FIG. 1, the approach portion is represented as an approach portion 110, and the landing portion is represented as a configuration including a table portion 120, a landing slope portion 130, a landing lower portion 140, a speed reduction portion 150, and a stopper 160. Note that illustrations of various facilities such as stairs, lighting, and a blower are omitted.

First, the approach unit 110 will be described.
The approach unit 110 includes a running surface and a cane (stepping platform), and has a pseudo-curved surface so that it can be smoothly performed from the running to the crossing.
FIGS. 2A and 2B are views showing the approach unit 110 taken out, in which FIG. 2A is a side view and FIG. 2B is a plan view.
As shown in FIG. 1 and FIG. 2, the approach part 110 is roughly provided with three parts: a start stage part 111, an approach slope part 112, and a crossing part 113.

The start stage 111 is a substantially flat surface, and is a part where the player stands to start.

The approach slope portion 112 is a portion that performs running and acceleration, and a pseudo curved surface that descends is formed.
In this configuration example, the approach slope portion 112 is provided with a running surface 116 and a side portion 115, and the friction coefficients of the surfaces are different from each other.

The run-up surface 116 is a surface on which the player slides, and when performing a normal approach, the run-up surface 116 is run to accelerate and accelerate. For this reason, the surface has a relatively small coefficient of friction, and acceleration is achieved even when the length of the approach portion is relatively short.

On the other hand, the side portion 115 is a portion that stops the player's sliding in order to protect the player when the player proceeds on a curved course that does not slide straight but goes out of the course. Therefore, the side portion 115 has a surface having a relatively large friction coefficient, and the ski of the player who has entered the side portion 115 is devised so that it is difficult to slip and decelerate. Although not shown, it is preferable that the outer side of the side portion 115 is not in a dangerous state like a cliff, and is provided with slopes such as grassland and soil so that the head is small. Although not shown, an object such as a side stopper that is forcibly stopped may be arranged.
For example, the surface of the running surface 116 of the approach portion 110 is made of artificial grass that is slippery, and a material such as a rubber sheet that has a large friction coefficient and is difficult to slip is laid on the surface of the side portion 115.

Here, a device for arranging a sprinkler under the running surface 116 on which artificial grass is laid is described. When the surface of the approaching surface 116 of the approach portion is covered with artificial turf, the artificial turf is a plastic material. When the ski passes the running surface 116 at a high speed, frictional heat is generated, and when the ski is used repeatedly, the artificial turf may gradually melt due to the frictional heat. Therefore, as shown in FIG. 2B, a sprinkler 118 that spouts water from below to the surface of the artificial turf is arranged on the running surface 116 on which the ski slides, so that the surface of the artificial turf springs. Can be devised. In the example of FIG. 2B, six sprinklers 118 are arranged.

FIG. 3A is a diagram simply showing a state in which water is springing from the sprinkler 118. As shown in FIG. 3 (a), if the water is sprinkled from the sprinkler 118, the ski surface during the sliding can be directly cooled with water, and the artificial turf itself can also be cooled, and the frictional heat can be reduced. It can be removed.

On the other hand, FIG. 3B does not have a configuration in which the sprinkler 118 is disposed below the running surface, but a so-called water tank type external sprinkler in which a sprinkler is disposed outside the approach portion 110 and water is sprayed from the side is adopted. This is an example. In this example, it is assumed that water is poured from the side in order to make the artificial slope easy to slide, but as shown in FIG. 3 (b), the area that can be sprinkled by the water sprinkler type external sprinkler is fan-shaped. Although it spreads out, it cannot concentrate on the run-up surface 116. Further, since the water is sprayed from the side, it cannot be directly applied to the lower surface of the player's ski. Certainly, water can be sprayed on the surface of at least a part of the surface of the run-up surface 116, and a certain artificial turf cooling effect can be obtained. is there. On the other hand, if the sprinkler 118 is arranged below the running surface shown in FIG. 3 (a), water can be directly applied to the lower surface of the ski by spring water, and the effect of cooling the lower surface of the ski is obtained. In addition, spring water concentrates on the running surface 116 and the cooling effect of the entire artificial turf is high.

Next, formation of the pseudo curved surface of the approach unit 110 will be described.
The pseudo curved surface of the approach part 110 is formed by connecting a plurality of plate members 114 together. It is preferable to form a pseudo curved surface of the approach portion 110 so as to approximate the curved surface of the competition jump table.

The plate member 114 may be a strong structure, and the material is not particularly limited. However, the plate member 114 has a structural strength that can sufficiently withstand the pressure change caused by the player's sliding. A single plate material may be used as long as it has structural strength, or a frame may be formed of metal and a board may be incorporated. A sheet or artificial turf is laid on the surface of the plate member 114.

Although it is the vertical width size of the plate member 114, as an example, the running surface 116 has a vertical width of 5 m or more. This is because the length of the ski is usually about 1 m50 cm to 2 m, and if it is 5 m, the ski will not straddle two or more joints between the plate members 114 at the same time. If the number of skis straddling the joints between the plate members 114 is zero or one, the skis can concentrate on acceleration in the downward direction without causing vertical vector changes. On the other hand, if the number of skis straddling the joints between the plate members 114 is two or more, the rate of vector change in the vertical direction increases and the rate of acceleration decreases compared to the downward acceleration. . As shown in FIG. 2, in this configuration example, five pieces 114-1, 114-2, 114-3, 114-4, and 114-5 are connected in order from the start stage unit 111. The lengths L1, L2, L3, and L4 of 1, 114-2, 114-3, and 114-4 are each 6 m, for example. The length L5 of 114-5 is 12 m.

Next, the connecting angle between the plate members is preferably connected at an angle within 5 degrees relative to the connecting angle between the plate members 114. When connecting at an angle of 5 m or more and a relative angle of 5 degrees or less at the joint, the change is within 1 degree at 1 m. According to the inventor's long-term research, if the change is less than 1 degree at 1 meter, the athlete feels that he / she feels a greater acceleration feeling of downhill without feeling much change in angle. Therefore, the player can feel that he is running along a gently curved curved surface, and it is difficult to feel a large vector change or unevenness at the joint. In the example of FIG. 2, the plate member 114 has θ1, θ2, θ3, θ4, and θ5, respectively, for example, 27 degrees, 22 degrees, 17 degrees, 12 degrees, and 7 degrees in this order. The relative angles of the joints between the plate members 114 are θ1-θ2, θ2-θ3, θ3-θ4, and θ4-θ5, respectively, and are 5 degrees in this example.
The angle of the plate member 114 can be changed by changing the height. If the heights H1, H2, H3, H4, and H5 can be raised and lowered with a jack or the like, the angle of the plate member 114 can be made variable.

Next, a description will be given of the canting 117 for crossing.
At the central zone of the crossing portion 113, a cane 117 for crossing is provided. That is, the runway 116 is smoothly connected to the take-off cante 117. In addition, the side part 115 for course-out is extended on both sides of the cane 117 for crossing, and is substantially horizontal here.

The plate plate 114 of the canting 117 for crossing has a vertical width of, for example, 75 cm or more and 1 m or less. This is because the length of the ski is usually about 1 m50 cm to 2 m, and if it is vertical, the ski will straddle two or more joints between the plate members 114 simultaneously. If the number of skis straddling the joints between the plate members 114 is two or more, the skis have a higher vector change ratio and can concentrate on the upward crossing.

FIG. 5 is a diagram for simply explaining the pseudo curved surface of the crossing cante. As shown in FIG. 5, in this configuration example, the six pieces 114-6, 114-7, 114-8, 114-9, 114-10, and 114-11 are sequentially arranged from the front end of the crossing cane 117. Although connected, each length L6, L7, L8, L9, L10, and L11 is, for example, 90 cm.

Next, the connecting angle between the plate members in the crossing portion 113 is preferably connected at an angle within 3 degrees relative to the joint angle between the plate members 114. When connecting at an angle of 75 cm or more and within 1 m and a relative angle of 3 degrees or less at the joint, if the angle change is 1 to 3 degrees, for example 2 degrees, the change in angle is 2 degrees at 1 m. According to the inventor's many years of research, it has been found that if the change is 1 degree or more at 1 m, the athlete feels the angle change relatively. Therefore, if the angle change is 1 m and within 1 degree or more and 3 degrees or less, the player can get a sense that he / she is making a gentle crossing upward and does not feel large unevenness at the joint. In the example of FIG. 5, the plate members 114 are θ6, θ7, θ8, θ9, θ10, and θ11, respectively, for example, 2 degrees, 4 degrees, 6 degrees, 9 degrees, 12 degrees, and 15 degrees in order. The relative angles of the joints between the plate members 114 are θ7-θ6, θ8-θ7, θ9-θ8, θ10-θ9, and θ11-θ10, respectively, and are 2 to 3 degrees in this example.

In this way, by adjusting the number of skis across the joint in the crossing portion 113 and the degree of angle change of the running surface, a linear acceleration feeling can be felt in the descending sliding area at the approach portion, and In a portion where an inclination angle rising at the approach portion is provided, it is possible to feel a curvilinear angle change toward the upper side.
Note that the angle of the plate member 114 also becomes variable at the crossing portion 113 if the height is changed. If the heights H6, H7, H8, H9, H10, and H11 can be raised and lowered with a jack or the like, the angle of the plate member 114 can be made variable.

Next, the joint between the run-up curved surface 116 of the approach unit 110 and the crossing cante 117 will be described.
FIG. 4 (a) shows that the inclination angle θ5 of the plate member 114-5 immediately before the place where the approach portion 110 starts to rise in the pseudo curved surface of the approach portion 110 is set to 5 to 10 degrees, It is directly connected to the pseudo curved surface. In this example, the inclination angle θ5 is 7 degrees. On the other hand, the inclination angle θ6 of the first plate member 114-6 of the pseudo curved surface of the crossing cante 117 is 2 degrees, and the relative angle of the joint between the two is 9 degrees. As a result of inventor's earnest research, if the relative angle is 10 degrees or less at the transition from the descending vector change of the run to the ascending vector change, there is no particular sensation and the smooth transition to the ascending motion is achieved. It turns out that a sense can be obtained. Here, in the case of the pseudo curved surface shown in FIG. 4A, acceleration by a slope of θ5 degrees of the plate member 114-5 is obtained until just before shifting to the ascending movement of the railroad crossing, and the plate member 114 remains as it is without being decelerated. Can move to -6 ascending movement.

On the other hand, FIG. 4B is a type found in the prior art, in which the plate member 114-5-1 at the lower end of the pseudo curved surface of the approaching surface 116 of the approach portion 110 and the plate member 114-6 of the crossing cante 117 are shown. A horizontal band plate member 114-5-2 having a zero inclination is provided at the joint. In this type of prior art, horizontal movement is entered between the descending movement of the run-up surface 116 and the lifting movement of the take-off cante 117, so it seems that both are clearly understandable for the player. In fact, it was also a deceleration zone. In the present invention, it is one of the purposes to shorten the installation length of the approach portion 110. Therefore, when there is a deceleration zone as in the type found in the prior art, the stepping pop-out speed of the stepping cante 117 is reduced accordingly. turn into. On the other hand, as shown in FIG. 4A, if the horizontal belt is not present, since it is an acceleration zone until just before shifting to the ascending motion of the crossing cante 117, the crossing popper 117 jumps out efficiently. The speed can be increased to a predetermined speed.

Next, the landing unit will be described.
FIG. 6 is a view showing a portion corresponding to the landing portion extracted from the ski jump game facility 100 of the present invention shown in FIG. The landing portion includes a table portion 120, a landing slope portion 130, a landing lower portion 140, a speed reduction portion 150, and a stopper 160. In FIG. 6, each

cover sheet

121, 131, 141, 151 covering the surface is removed.

First, the table unit 120 will be described. As shown in FIG. 6, the upper side of the landing portion is not provided with a horizontal table portion as in the prior art, and has a gentle slope. The table section of the prior art is a space that does not physically fall off when ski jumping is performed at the assumed initial speed, and it is simply created as a horizontal table section, and a slope section is provided by providing a nor section. However, in the case of a so-called failure jump, for example, when the vehicle falls over at the approach unit 110 and falls forward as it is, there may be an accident that falls directly on the table unit. Therefore, as shown in FIG. 1, the table portion 120 is lifted up to the vicinity of the height of the approach portion 110, the steps are reduced, and it is devised to disperse the dropped impact.

Next, the landing slope portion 130 will be described.
The landing slope portion 130 is a place where the player's landing and subsequent deceleration are performed, and the landing impact is reduced along the flight path of the player who has jumped from the crossing cante 117 and is safely received. Provide an adjusted slope. The landing slope portion 130 has a slope so that it can be safely decelerated after landing, and has an angle at which it can slide forward along the flight angle of the player.

The landing slope portion 130 is made of an air mat, and further includes a cover sheet 131 that protects the surface of the air mat, a blower (not shown) for maintaining the internal pressure of the air mat, and a ventilation for adjusting the air pressure in the air mat. 132 is provided.

The material of the air mat must have the elasticity to soften and accept the impact caused by the player's landing, and the tensile strength and breaking strength to withstand the change in air pressure caused by the impact caused by the player's landing. A plurality of materials may be combined by multilayering an air mat or a cover sheet. The material is not particularly limited as long as it has such tensile strength and breaking strength. For example, a canvas material of high-strength polyester fiber can be used as a material for an air mat body, a cover sheet, or the like.

FIG. 7 is a view showing a part of the internal structure for explaining the internal structure of the landing slope portion 130.
FIG. 8 is a view for explaining the flow of air for absorbing the landing impact in the landing slope portion 130. It is a plan view.

7 and 8, a plurality of partition walls 133 are provided inside the landing slope portion 130. As shown in FIG. The partition film 133 is provided along the landing direction, that is, the front-rear direction, and serves as a kind of wall column that supports the inside of the air mat and further prevents the air mat from bulging upward.

The space partitioned by the partition wall film 133 is a kind of cylinder 137, and a plurality of cylinders 137 are connected in the air mat. Note that the end of the cylinder 137 is an open end so that air inside the cylinder 137 can enter and exit as shown in FIGS.

Further, in this configuration example, as shown in FIG. 7, the partition wall film 133 has a mesh structure 134 and has a structure in which holes 135 are opened, and the partition wall film 133 also passes through the partition film 133 in the lateral direction. Air can move. As shown in FIG. 8, the impact of landing on an adult's body weight is great, and a large amount of air in the air mat is efficiently diffused to moderate the impact, and with a large amount of air resistance with moderate air resistance. This is because the elasticity of the entire air mat and the impact absorbing effect can be imparted. As a result of inventor's earnest research, in addition to the air entering and exiting from the open end of each cylinder 137 partitioned by the partition wall film 133, the partition wall film 133 itself has a mesh structure 134 as shown in FIG. It was found that a large amount of air in the air mat can be diffused efficiently and with moderate air resistance if air is allowed to pass through.

FIG. 8 shows a situation in which the impact caused by the player's landing is received by the entire air mat, and the impact is absorbed by a large amount of air inside.
In the example of FIG. 8, landing is made near the center, and the impact is applied from above. Six cylinders 137 are formed in the air mat by the partition film 133, and the ends thereof are open ends in the front and rear, so that air can freely enter and exit. When a landing impact is applied, the air near the center of the air mat diffuses in the front-rear direction of the cylindrical body 137 and is ejected from the front end and the rear end. The jetted air increases the air pressure at the end of the air mat, and the front end and the rear end of the air mat expand due to their elasticity. Here, there is no further outward direction at the front end and the rear end of the air mat, but the air mat is movable in the horizontal direction (right direction in the figure). The rightmost cylinder 137 is provided with a ventilation 132 so that air in the air mat can be discharged to the outside if the air pressure of the air mat rises. Therefore, the air ejected from the other cylinder 137 flows into the rightmost cylinder 137 and can be discharged to the outside through the ventilation 132. In this way, it is possible to adjust the fluctuation of the air pressure in the air mat accompanying the landing.

Further, as shown in FIG. 7, the partition wall film 133 itself has a structure through which air can pass. Therefore, when landing impact is applied, the air in the vicinity of the center of the air mat passes through the partition wall film 133 in a horizontal manner. It diffuses also in the direction and the diagonal direction, and has a structure that flows out to the other cylindrical body 137. The mechanism in which part of the air is discharged to the outside through the ventilation 132 is the same as described above.
Thus, not only the movement of the air in the front-rear direction of the partition film 133 but also the movement of the air in the lateral direction and the oblique direction passing through the partition film 133 itself is possible, so that the ability to absorb the impact of landing is improved. is doing.

After absorbing a large impact at the time of landing, the player starts to decelerate safely while sliding on the landing slope portion, but the pressure applied to the air mat is reduced compared to at the time of landing.
Since the landing slope portion 133 has a blower (not shown) and feeds air into the air mat, the air pressure in the air mat can be recovered. Therefore, the recessed air mat can bulge and return to its original shape.

Next, a device for improving maintainability of the landing slope portion 133 due to landing impact will be described.
The landing slope part 130 may be damaged by landing impact or the like. When the cover sheet 131 on the surface is damaged, it can be repaired from the surface and can be maintained relatively easily. However, when the inside of the air mat is damaged, particularly when the inner partition wall film 133 is damaged, maintenance is very difficult. The air mat is long, and since it is the partition wall film 133 stretched in the air mat, it is a very difficult task to find out which part is broken.

FIG. 9 is a diagram illustrating a configuration example in which a cutting portion 136 having a cutting strength weaker than that of the other mesh structure 134 is provided in a part of the mesh structure 134 of the partition wall film 133. If a force exceeding the cutting strength is applied to the partition wall film 133 by the user's landing, the cutting portion 136 is configured to cut. As shown in FIG. 9 (a), by providing a portion that is easy to cut, a broken portion and a deteriorated portion can be efficiently checked by checking several cutting portions 136 at known positions in a large air mat. Can be easily discovered and maintained. Of course, there is a possibility of breakage at a place other than the cutting part 136, but in daily maintenance, it is possible to check the cutting part 136 at the center and to check the whole by periodic full maintenance or the like.

On the other hand, as shown in FIG. 9B, when the barrier rib film 133 has the mesh structure 134 and the hole 135 but does not have the cutting portion 136, the impact on the entire mesh structure 134 is applied when an impact due to landing is applied. In addition, it is difficult to predict where the troubles such as cutting will occur. Therefore, eventually, the entire partition film 133 stretched around the air mat is checked.

Next, I will describe how to reduce and stop the user's sliding at the landing section.
The user who has passed through the landing slope portion 130 has slowed down to some extent due to his own edging and the frictional force between the cover sheet 131 of the landing slope portion 130 and the ski, but as shown in FIGS. 140, the deceleration part 150, and the stopper 160 are the structures which can decelerate safely and can stop.

The landing lower part 140 is almost horizontal, and the player's run is no longer accelerated. It is easy to decelerate by its own edging and frictional force between the cover sheet 141 and the ski. There may be a case where it completely stops on the landing lower portion 140.

The deceleration unit 150 is provided in front of the landing lower portion 140 to further increase deceleration, and may be a gentle up slope near the horizontal or conversely. Further, in order to promote the deceleration, as shown in FIG. 6, it is possible to devise the lateral direction of the partition film 133 inside the air mat. The partition wall film 133 is provided so as to connect the upper surface of the inner wall and the lower surface of the inner wall of the air mat, and irregularities appear on the surface of the air mat. However, if the formation direction of the partition film 133 inside the air mat is horizontal, the cylinder 137 is horizontal. It becomes a direction and some unevenness | corrugations are made on the surface of the deceleration part 150. FIG. The cover sheet 151 can also be devised to make it uneven. Then, so-called stepped irregularities are formed in the player's sliding direction, and in particular, the groove of the concave portion is a great resistance against skiing. In this way, the unevenness is repeated in the traveling direction of the ski of the user who is decelerating, so that further deceleration is possible.

The stopper 160 is provided further ahead of the speed reduction unit 150, and is a stopper that forcibly stops the forward movement of the player who has slid so far. For example, the end portion of the air mat is folded upward.

These have a structure that can be safely decelerated and stopped by the landing lower portion 140, the decelerating portion 150, and the stopper 160.

Next, I will describe the idea of draining the landing section. It is assumed that the ski jumping game facility is installed outdoors, but it is conceivable that moisture adheres to the air mat surface due to rain, condensation, frost and the like. In the landing slope portion 130, there is an inclination, and moisture falls downward along the inclination, but the landing lower portion 140 and the vicinity of the speed reduction portion 150 are substantially horizontal, and moisture tends to accumulate. In particular, since a groove is formed on the surface of the air mat where it is bonded to the partition wall film 133, moisture tends to accumulate in the groove. In view of this, there is a contrivance that the groove formed in the speed reduction portion 150 is inclined in the right direction or the left direction. Due to this inclination, the moisture on the surface of the speed reduction part 150 is drained to the left side or the right side of the speed reduction part 150 along the inclination of the groove.

As mentioned above, although preferred embodiment in the structural example of the game equipment for ski jumping of this invention was illustrated and demonstrated, it is understood that various changes are possible without deviating from the technical scope of this invention. I will.

The ski jump play equipment of the present invention can be widely applied to artificial ski jump play equipment installed indoors or outdoors.

BRIEF DESCRIPTION OF THE DRAWINGS It is a figure which shows the game equipment for ski jumping of this invention concerning Example 1. FIG. It is the figure which took out and showed the approach part 110. FIG. It is a figure which shows simply a mode that it is springing from the sprinkler. It is the figure which showed simply the connection part of the approach part 110 of this invention, and a prior art, and the canteen 117 for a crossing. FIG. 5 is a diagram for simply explaining the pseudo-curved surface of the crossing cante. It is the figure which took out and showed the part corresponded to a landing part among the game facilities 100 for ski jumping of this invention shown in FIG. FIG. 4 is a view showing a part of the internal structure for explaining the internal structure of a landing slope portion 130. It is a figure explaining the flow of the air for absorbing the impact of the landing in the inside of the landing slope part 130. FIG. It is a figure explaining the structural example which provided the cutting part 136 with weaker cutting strength than the other mesh structure 134 part in the mesh structure 134 of the partition film 133. FIG. It is a figure which shows simply the structural example of the game equipment for ski jumps disclosed by the Unexamined-Japanese-Patent No. 2001-70497.

DESCRIPTION OF SYMBOLS 100 Ski jumping play equipment 110 Approach part 111 Start stage part 112 Approach slope part 113 Crossing part 114 Plate member 115 Side part 116 Running surface 117 Crossing part 120 Table part 121 Cover sheet 130 Landing slope part 131 Cover sheet 132 Ventilation 133 Partition film 134 Mesh structure 135 Hole 136 Cutting part 137 Tubular body 140 Landing lower part 141 Cover sheet 150 Deceleration part 151 Cover sheet 160 Stopper

Claims

An approach part equipped with a pseudo-curved surface so that it can be smoothly performed from the run up to the crossing, with a running surface and a cante,
An air mat that is filled with air, and a blower that feeds air into the air mat, and a landing portion that finishes at least a part of the surface of the air mat into a sloping surface that decelerates and lands.
A ski jump game characterized in that the slope shape is maintained even when air pressure is applied to the air mat by providing a plurality of partition walls connecting an inner wall upper surface and an inner wall lower surface in the air mat of the landing portion. Facility.
The partition film is provided in the air mat along the front-rear direction of the landing portion, and a space partitioned by the partition film forms a cylinder, and the front end and the rear end are open ends inside the air mat. The ski jumping game equipment according to claim 1, wherein:
A hole or a mesh structure is provided in at least a part of the partition film, and in the air mat, internal air can diffuse through the partition film, and impact due to the landing can be applied to the air mat. The play equipment for ski jump according to claim 1 or 2, characterized by being softened by elasticity and diffusion of air in the air mat.
In the vicinity of the hole or the mesh structure of the partition film, a cutting portion having a cutting strength weaker than that of the other partition film structure is provided, and a force exceeding the cutting strength is applied to the partition film by the user's landing. 4. The ski jump game equipment according to claim 1, wherein, when the game is performed, the cutting unit is configured to cut the ski jump. 5.
The ski jumping game equipment according to any one of claims 1 to 4, wherein the partition film is provided along the left and right directions of the landing portion in the vicinity of the tip of the air mat.
At least a part of the groove formed on the surface of the air mat by bonding with the partition film near the front end of the air mat is inclined rightward or leftward, and moisture that has fallen on the surface near the front end of the air mat is 6. A ski jump game facility according to claim 1, wherein the air mat is drained to the left or right of the air mat along an inclination.
The ski jump game equipment according to any one of claims 1 to 6, wherein the air mat is provided with a table portion near the upper end and a nol portion, and the upper end is finished into a slope.
Dividing the pseudo curved surface of the approach portion into a running surface of a central belt and side portions provided on both ends of the running surface, the friction coefficient of the surface of the running surface is smaller than the friction coefficient of the surface of the side portion, 8. The structure according to claim 1, wherein when the player runs on the running surface, the player can easily run, and when the player goes out of the side, the running is decelerated. The ski jumping game equipment according to item 1.
The approach surface of the approach section is artificial turf, and a sprinkler that sprays water from below to the surface of the artificial turf is arranged in the area where skis pass, and the ski surface that is running is directly cooled. The ski jumping game equipment according to any one of claims 1 to 8.
For the part forming the pseudo curved surface of the approach portion, the plate member having a vertical width of 5 m or more is connected at an angle within 5 degrees with respect to the portion where the downward inclination angle is provided, and the upward inclination angle is provided. The plate members having a vertical width of 1 m or less are joined at a joint angle between the plate members so as to approximate the curved surface of the jumping table by connecting the plate members having a vertical width of 1 m or less at an angle within 3 degrees. The ski jumping game equipment according to any one of claims 1 to 9, wherein the equipment is a ski jumping game.
11. The tilt angle of the surface of the plate member immediately before a portion that turns upward toward a jump on the pseudo curved surface of the approach portion is set to 5 degrees to 10 degrees. Ski jumping play equipment as described in the paragraph.