JP3004235U - Snowboard runway - Google Patents

Abstract

(57) [Summary] [Purpose] To provide a snowboard runway suitable for snowboarding. [Structure] A snowboard runway 1 of the present invention is formed in a groove 3 formed from a high place to a low place along a slope 2, and includes a frame member 4, a sliding mat 5, and a sliding mat. 5
And a fixing member 6 for fixing to the inner surface of the groove 3. The frame member 4 is made of a grid-shaped plate piece, and is provided on the side surface 3 of the groove 3.
2, 33 and curved concave surfaces 34, 35.
The sliding mat 5 is installed on almost the entire inner surface of the groove 3 so as to cover the frame member 4, and is composed of a base material and a plurality of flexible projections 53 provided upright from the base material. A plurality of unit mats are connected in the vertical and horizontal directions.
The fixing member 6 is composed of a pile having an embedding portion 61 that is embedded in soil and an L-shaped hook portion 62 that engages with the base material of the sliding mat 5.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a snowboard runway used for snowboarding.

[0002]

[Prior art]

 In recent years, a sport called snowboarding has become widespread. This snowboard is a relatively short board that glides on a snow surface, unlike conventional skis that ski on two long skis.

[0003] Snowboards, which originally run on slopes of natural snow, are subject to seasonal and regional restrictions, similar to skis. Therefore, it is desired to develop artificial snowboard runways for snowboards as well as artificial ski resorts for natural snow ski areas.

By the way, in the artificial ski resort, the structure of the runway for artificial ski is known (Japanese Patent Publication No. 47-38103, Japanese Utility Model Publication No. 51-51736, Japanese Patent Laid-Open No. 3-15485, etc.). However, since these are all premised on laying on a flat slope (the slope), they cannot be diverted as they are to artificial snowboard runways.

[0005] The main reason for this is that snowboards run by repeatedly turning with a small turning radius at short intervals, so snowboard runways (especially competition runways) are not suitable for use on flat slopes. Instead, it is preferable that the groove is formed in a groove having a height difference at both ends, and a dedicated structure for that is required.

That is, in the conventional runway for artificial skis, the conditions such as gravity, pressure (stress), and impact that can act on the sliding mat are uniform over the entire laying area (artificial ski slope) of the sliding mat. On the other hand, when a snowboard slides laterally in the groove and repeats turns while sliding down from one end of the groove to the other, stress and impact force concentrate on a specific part of the inner surface of the groove. However, a structure with characteristics that can cover this is required.

[0007]

[Problems to be solved by the device]

 An object of the present invention is to provide a snowboard runway suitable for a snowboard different from conventional skis.

[0008]

[Means for Solving the Problems]

 Such an object is achieved by the present invention of the following (1) to (10).

(1) A snowboard runway formed in a groove formed along a slope, comprising a frame member installed on at least a side surface of the groove, and the groove so as to cover the frame member. Of the sliding mat, and a fixing member for fixing the sliding mat in the groove. The sliding mat has a base material and a plurality of flexible members installed upright from the base material. A snowboard runway, comprising a flexible projection.

(2) The runway for a snowboard according to (1) above, wherein the inner surface of the groove is entirely or partially formed by a curved concave surface that is curved in a substantially arc shape.

(3) The groove has a bottom surface, a pair of side surfaces, and curved concave surfaces that are respectively located between the bottom surface and the both side surfaces, and the bottom surface and the both side surfaces are the same. The snowboard runway according to (1) above, which is continuously formed via a curved concave surface.

(4) A snowboard runway formed along a slope, having a bottom surface, a pair of side surfaces, and curved concave surfaces located between the bottom surface and the both side surfaces, respectively. A frame member installed on at least both side surfaces and both curved concave surfaces of the groove, a sliding mat installed along the inner surface of the groove so as to cover the frame member, and the sliding mat in the groove. And a fixing member for fixing the same to the sliding mat, wherein the sliding mat comprises a base material and a plurality of flexible projections provided upright from the base material. Runway.

(5) The runway for snowboards according to (4), wherein the fixing member fixes the sliding mat on at least both side surfaces of the groove and both curved concave surfaces.

(6) The snowboard runway according to any one of (1) to (5), wherein the frame member is curved along the curvature of the inner surface of the groove.

(7) The runway for snowboards according to any of (1) to (6) above, wherein a part of the frame member is embedded in the inner surface of the groove.

(8) The runway for snowboards according to any of (1) to (7) above, wherein the runway mat is formed by connecting a plurality of unit mats.

(9) The sliding mat is composed of a sheet-shaped base material that can be curved and deformed, and a plurality of flexible protrusions provided upright from the sheet-shaped base material. The snowboard runway according to any one of (1) to (8).

(10) The snowboard runway according to any of (1) to (9) above, wherein a layer made of natural or artificial snow or ice particles is formed on the sliding mat.

[0019]

【Example】

 Hereinafter, a snowboard runway according to the present invention will be described in detail with reference to the preferred embodiments shown in the accompanying drawings.

FIG. 1 is an overall perspective view showing a configuration example of a snowboard runway of the present invention, FIG. 2 is a sectional view taken along line II-II in FIG. 1, and FIG. 3 is a snowboard runway of the present invention. FIG. 4 is a perspective view showing a structural example of a frame member, FIG. 4 is a plan view showing a structural example of a sliding mat in a snowboard runway according to the present invention, and FIG. 5 is a sectional view taken along line VV in FIG.

As shown in FIGS. 1 and 2, the snowboard runway 1 of the present invention is directed from a high place to a low place along a slope 2 provided outdoors or indoors, which is naturally or artificially provided. It is formed in the groove 3 formed by stripping.

The average inclination angle θ of the slope 2 is not particularly limited, but may be preferably θ = 1 to 40 °, more preferably θ = 1 to 20 °.

The groove 3 has a height difference at both ends thereof, and its cross-sectional shape is substantially the same over the entire length of the groove.

As shown in FIGS. 1 and 2, the groove 3 includes a bottom surface 31, a pair of side surfaces 32 and 33, a curved concave surface 34 located between the bottom surface 31 and the side surface 32, and the bottom surface 31 and the side surface 33. And a curved concave surface 35 located between and, and the bottom surface 31 and both side surfaces 32 and 33 are continuously formed via the curved concave surfaces 34 and 35, respectively. That is, the bottom surface 31, the side surfaces 32 and 33 and the curved concave surfaces 34 and 35 form a continuous groove inner surface.

In the illustrated configuration, the curved concave surfaces 34, 35 are curved surfaces curved in an arc shape, and the bottom surface 31 and the side surfaces 32, 33 are flat surfaces, but the present invention is not limited to this. The curved concave surfaces 34, 35 may be, for example, elliptic, quadratic curve, cubic curve, hyperbolic curve in their cross section, curved surfaces having loci of these approximate curves or any other curve, and the bottom surface 31. Similarly, the side surfaces 32 and 33 may be various curved surfaces. Further, the cross-sectional shape of the groove 3, the width, the depth, etc. of the groove 3 may be changed along the longitudinal direction of the groove 3.

As shown in FIG. 2, the snowboard runway 1 has a frame member 4, a sliding mat 5, and a fixing member 6 for fixing the sliding mat 5 to the inner surface of the groove 3. Hereinafter, each of these components will be sequentially described.

The frame member 4 serves as a base for laying a sliding mat 5 which will be described later, and is installed on the side surfaces 32 and 33 and the curved concave surfaces 34 and 35 of the groove 3. As shown in FIG. 3, the frame member 4 has a quadrangular outer frame 41, and a vertical plate 42 and a horizontal plate 43 are formed inside the outer frame 41 in a grid pattern. Further, although not shown, there may be a beam member extending in a diagonal direction of the outer frame 41. By making the frame member 4 such a structure, it is possible to make the frame member 4 itself lightweight and have high strength, and at the same time, the lattice portions of the vertical plates 42 and the horizontal plates 43 are bitten by soil (or concrete). It is embedded and prevents its movement, deformation or collapse, and enables a firm fixation.

As the constituent material of the frame member 4, for example, various metals or alloys such as iron, stainless steel, copper or copper alloy, brass and aluminum, polyvinyl chloride, polyethylene, polypropylene, polystyrene, polycarbonate, polyacetal. Polyester such as acrylic resin, ABS resin, polyethylene terephthalate, polybutylene terephthalate, polyamide, polyimide, polytetrafluoroethylene, epoxy resin, phenol resin, urea resin, fluororesin, polyphenylene sulfide, polyether sulfone, poly Examples include various resins such as ether ether ketone and polymethylpentene, various ceramics such as alumina, various woods and plywood.

A plurality of such frame members 4 are arranged side by side on the inner surface of the groove 3 in the vertical direction (longitudinal direction of the groove 3) and in the horizontal direction. Therefore, in the outer frame 41 of the frame member 4, small holes 44 through which a connecting member such as a bolt is inserted are formed at predetermined intervals. A bolt can be inserted through the small hole 44, and the adjacent frame members 41 can be connected by the bolt.

As shown in FIG. 3, the frame member 4 installed on the curved concave surfaces 34 and 35 is laterally curved so as to correspond to the curvature of the curved concave surfaces 34 and 35. As a result, the followability with respect to the curved concave surfaces 34, 35 is excellent, and it is possible to install them without a gap.

The reason why the frame member 4 is installed at least on the side surfaces 32 and 33 of the groove 3, particularly on the side surfaces 32 and 33 and the curved concave surfaces 34 and 35 is as follows.

Since the side surfaces 32 and 33 of the groove 3 are substantially perpendicular to the slope 2 or have a steep angle close thereto, the soil forming the groove 3 is apt to move, deform or collapse, and especially When the soil becomes soft due to an increase in water content, etc., the probability of this occurring is high. Furthermore, on the side surfaces 32 and 33, the sliding mat 5 installed on the frame member 4 also has a steep angle, so that the sliding mat 5 may be displaced, peeled (lifted), or dropped due to vibration, impact, etc. accompanying sliding. easy.

Therefore, by installing the frame member 4 on the side surfaces 32 and 33, it is possible to prevent the soil from moving, deforming, collapsing, and the like, and also preventing the sliding mat 5 installed on the soil from slipping and sliding. The mat 5 can be securely fixed.

In addition, the snowboard slides laterally in the groove 3 in the order of the side surface 32, the curved concave surface 34, the bottom surface 31, the curved concave surface 35, and the side surface 33, and turns at the side surface 33 to bend the curved concave surface 35, the bottom surface 31, and the curved surface 31. The concave surface 34 and the side surface 32 are slid in this order, and then the surface is turned again on the side surface 32. While repeating a series of operations, the sliding surface slides down from the high position to the low position along the inclination of the groove 3. In addition, the centrifugal force is applied to the planer in addition to the gravity of the planer, and especially when the soil is soft, the soil may be moved or deformed, or the fixation of the sliding mat 5 may be unstable. In particular, regarding the deformation of the soil, the soil is buried (caused by scooping) in the portion where the pressure applied to the curved concave surfaces 34 and 35 is concentrated, and the curvature of the curved concave surfaces 34 and 35 increases. Therefore, the curvature of the curved concave surfaces 34 and 35 becomes non-uniform over the entire length of the groove 3, which may hinder sliding.

Therefore, by installing the frame member 4 on the curved concave surfaces 34 and 35, the movement and deformation of the soil can be prevented, the sliding mat 5 can be more securely fixed, and the slippage and the like can be prevented. The smooth and safe gliding can be maintained.

It is preferable that a part of the frame member 4 in the thickness direction is embedded in the inner surface of the groove 3, that is, the side surfaces 32, 33 and the curved concave surfaces 34, 35 (see FIG. 2). As a result, as described above, the frame member 4 can be securely fixed to the side surfaces 32 and 33 having a steep angle with respect to the slope 2 and the curved concave surfaces 34 and 35 where stress is likely to be concentrated, and the soil It is possible to more reliably prevent movement, deformation or collapse. Furthermore, it is possible to reduce the step difference between the curved concave surfaces 34 and 35 and the bottom surface 31 of the frame member 4 and to lay the sliding mat 5 installed thereon more flatly.

In the present invention, the frame member 4 may be fixed to the inner surface of the groove 3 by a dedicated fixing member, or the frame member 4 may be installed on the bottom surface 31.

As shown in FIG. 2, the sliding mat 5 is installed on almost the entire inner surface of the groove 3 so as to cover the frame member 4. The sliding mat 5 in this embodiment is composed of a unit mat connected body in which a plurality of unit mats 51 are connected in the vertical and horizontal directions, respectively.

As shown in FIG. 4, the unit mat 51 includes a base material 52 formed in a frame shape having a substantially triangular opening (opening shape can be arbitrary such as circular, rectangular, octagonal), and the base 52. It is composed of a plurality of flexible projections 53 provided upright from the material 52.

A predetermined number of male fitting portions 54 each having a convex portion and a plurality of female fitting portions 55 each having a concave portion are formed on the outer edge portion of the unit mat 51 at positions facing each other. . Adjacent unit mats 51 are connected to each other by fitting the male fitting portion 54 and the female fitting portion 55. It should be noted that the male fitting portion 54 and the female fitting portion 55 have a non-return mechanism such that once they are fitted, they cannot move in the opposite direction from which the fitting is released. preferable. As a result, the male fitting portion 54 and the female fitting portion 55 are prevented from being disengaged from each other due to vibrations, impacts, etc. accompanying the sliding of the snowboard. An example of such a non-return mechanism is a structure in which a plurality of claws 541 that engage with the opening edge of the female fitting portion 55 are provided along the outer periphery of the male fitting portion 54.

The connecting mechanism of the unit mats 51 is not limited to the male fitting portion 54 and the female fitting portion 55 as shown in the figure. For example, the outer peripheral portions of the adjacent unit mats 51 may be separated from each other. You may connect with a connection member (for example, a rivet).

As shown in FIG. 5, each protrusion 53 is erected substantially perpendicular to the base material 52. In this case, the protrusions 53 are arranged in a row along the frame 521 of the base material 52, and the height of the protrusions 53 is highest in the widthwise central portion of the frame 521 and gradually decreases toward both ends thereof. The locus of the tip of each protrusion 53 is configured to have a mountain shape as a whole. The outer diameters of the protrusions 53 may all be the same, but the central portion in the width direction of the frame of the base material 52 is the smallest, and the outer diameters may be gradually reduced toward both ends thereof.

With such a configuration, the flexibility of the protrusion 53 is different between the center portion and the both side portions in the width direction of the frame 521, and the protrusion 53 may be different depending on the sliding condition. Since the snowboard contact order (frequency) is different, it enables low-friction and stable high-speed downhill for straight downhill snowboarding, and improves the effectiveness of the snowboard edge during turns. However, sharp turns are possible without slipping.

Ribs 522 are formed so as to project from the lower surface of the base material 52. By providing the rib 522, the weight of the unit mat 51 can be reduced and a sufficient reinforcing effect can be obtained.

The protrusions 53 are preferably formed integrally with the base material 52. Specifically, the unit mat 51 can be manufactured by injection molding using a polymer material described later.

The characteristics required for such a unit mat 51 include sufficient strength and toughness, durability (especially durability at low temperature), low friction coefficient, wear resistance, and ease of manufacturing. To be Examples of the constituent material of the unit mat 51 that can satisfy many of such characteristics are, for example, polyolefin such as polyethylene, polypropylene, ethylene-vinyl acetate copolymer, polyvinyl chloride, polystyrene, polyamide, polyethylene terephthalate, polybutylene terephthalate. One of various polymers such as polyester, polyurethane, etc., isoprene rubber, butadiene rubber, styrene-butadiene rubber, chloroprene rubber, nitrile rubber, butyl rubber, ethylene-propylene rubber, acrylic rubber, silicone rubber, etc. Alternatively, a material containing two or more kinds (for example, a polymer alloy) as a main material may be mentioned, and among them, a material containing polyethylene or polypropylene as a main material is particularly preferable.

If necessary, various additives such as a filler, a plasticizer, a lubricant, a deterioration inhibitor, a stabilizer, and a pigment are added to the constituent material of the unit mat 51. May be.

Such a sliding mat 5 is fixed to the inner surface of the groove 3 and the frame member 4 by the fixing member 6. As shown in FIGS. 1, 2 and 4, the fixing member 6 in the present embodiment is a pile having an embedded portion 61 and a hook portion 62 formed at one end thereof and bent in an L shape ( Spike)).

The fixing of the sliding mat 5 by the fixing member 6 as described above is fixed by burying the embedding portion 61 in the soil with the hook portion 62 hooked on the frame 521 as shown in FIG. To be done. In this case, each fixing member 6 embeds the embedding part 61 almost perpendicularly to the surface (slope 2, bottom surface 31, side surfaces 32, 33, curved concave surfaces 34, 35) on which the sliding mat 5 is fixed. Is preferred. Further, although not shown, as a means for preventing the fixing member 6 from coming off, unevenness, a barb or the like may be formed on the outer surface of the embedding portion 61.

In the case of the present embodiment, the positions at which the sliding mat 5 is fixed by the fixing member 6 are the side surfaces 32, 33, the curved concave surfaces 34, 35, and both edge portions 36 of the groove 3. As described above, the side surfaces 32, 33 have a steep angle, and the curved concave surfaces 34, 35 are likely to be subjected to a large stress in the lateral direction. Peeling (lifting) is likely to occur. Also, the sliding mat 5 is easily peeled off at both edges 36 of the groove 3. Therefore, by fixing the sliding mat 5 at at least such a position, it is possible to reliably prevent the sliding mat 5 from being displaced or peeled (lifted).

Needless to say, the sliding mat 5 may be further fixed to the bottom surface 31 by the fixing member 6.

The density (interval) of the fixing points by the fixing member 6 is not particularly limited, and for example, a method of fixing with one or more fixing members 6 for each unit mat 51, a fixing member for each unit area The method of fixing with 6 (for example, the number of fixing members is 0.5 to 10 pieces / m ² ), etc. may be used. Furthermore, the density of the fixing points by the fixing member 6 may be non-uniform. In this case, it is preferable to fix the sliding mat 5 tightly in the portion where the slipping mat 5 is easily displaced, peeled off, or dropped.

The structure of the fixing member 6 is not limited to the one shown in the drawing, and for example, a member having two or more embedded portions 61, an anchor bolt, a fixture to the frame member 4, etc., is used to fix the sliding mat 5. Any configuration can be used if it is possible.

FIG. 6 is a cross-sectional view showing another configuration example of the snowboard runway of the present invention. The snowboard runway 1 ′ shown in the figure is the same as the snowboard runway 1 described above except that a layer 7 made of natural or artificial snow or ice particles is provided on the runway mat 5. With such a structure, the snowboard can slide in a more natural state. Further, since the layer 7 exerts a cushioning effect, there is an advantage that the impact or the like directly applied to the sliding mat 5 is mitigated and damage and deterioration of the snowboard and the sliding mat 5 are reduced.

In such a snowboard runway 1 ′, the weight of the layer 7 made of snow or ice particles is added to the sliding mat 5, but as described above, the sliding mat 5 is securely fixed. Therefore, there is no deviation, peeling, dropping, or the like. Further, even in the vicinity of the side surfaces 32, 33 and the curved concave surfaces 34, 35, the flow of snow and ice particles and the separation thereof are unlikely to occur due to the action of the opening of the sliding mat 5 and the projection 53.

The thickness of the layer 7 made of such snow or ice particles may be uniform or non-uniform over the entire inner surface of the groove 3, and the layer 7 is partially formed in the groove 3. You may be touched.

In such a snowboard runway 1 ′, even when the layer 7 in the groove 3 is partially scraped by the sliding of the snowboard to expose the sliding mat 5, the sliding function of the sliding mat 5 itself is originally obtained. Therefore, there is no hindrance to the gliding.

FIG. 7 is a perspective view showing another structural example of the frame member in the present invention. The frame member 8 shown in the figure is composed of bar members 81 formed in a lattice shape, and leg portions 82 for embedding and fixing the frame member 8 in soil are formed at four corners thereof. There is. Each leg 82 has a sharp tip and can be easily embedded in the soil from the inner surface of the groove 3.

In this frame member 8 as well, a plurality of frame members 8 are arranged in the vertical direction and the horizontal direction with respect to the inner surface of the groove 3 as described above. It is not necessary to connect them, and the frame members 8 may be arranged at a predetermined interval.

FIG. 8 is a perspective view showing another configuration example of the sliding mat according to the present invention. The sliding mat 9 shown in the figure comprises a sheet-shaped base material 91 and a plurality of flexible projections 92 provided upright from the base material 91.

The sheet-shaped base material 91 is capable of being curved and deformed, and as shown in FIG. 8, it can be rolled and held in a roll shape. Further, the protrusions 92 are formed on one surface of the base material 91, for example, in a matrix or in a dotted pattern. The height of each protrusion 92 may be the same or different. Further, the protrusion 92 may be like artificial turf.

In the sliding mat 9 having such a configuration, since the base material 91 itself can be easily bent and deformed, it can be easily laid on the inner surface of the groove 3 and the followability to the curved portion of the groove 3 can be easily achieved. Is also excellent. In addition, unlike skiing, skiing does not normally use a ski, so there is no chance of the skis being stabbed and damaged by the tip of the ski, which is an advantage over skiing. .

The sliding mat 9 can be fixed in the groove 3 by, for example, piercing the base member 91 with the above-mentioned fixing member 6 and burying the embedding portion 61 in the soil. The members 4 and 8 may be fixed by tightening or adhesive bonding.

Although the snowboard runway of the present invention has been described above based on the preferred embodiment shown in the accompanying drawings, the present invention is not limited to the illustrated configuration, and It can be replaced with another configuration that produces a similar function.

Further, the structure of the groove 3 in the present invention, in particular, the cross-sectional shape is not limited to that shown in the drawing, and the whole or part of the inner surface of the groove is a cylindrical surface (curved concave surface) which is curved in a substantially arc shape. It may be a paraboloid or a curved concave surface similar to these.

[0066]

[Effect of device]

 As described above, according to the snowboard runway of the present invention, it is possible to provide a runway suitable for a snowboard, which is different from conventional skis.

Further, since the frame member is installed at least on the side surface of the groove, particularly on the side surface and the curved concave surface, the soil constituting the groove is prevented from moving, deforming, collapsing, and the sliding mat is displaced. It is possible to maintain a state in which smooth and safe gliding can be achieved without fail by securely fixing it.

In this case, if a part of the frame member is embedded in the inner surface of the groove, the frame member can be more reliably fixed, and the above effect can be more remarkably exhibited. Further, when the frame member is curved along the curvature of the inner surface of the groove, the followability to the inner surface of the groove is excellent and the installation thereof is more appropriate.

Further, by fixing the sliding mat on at least both side surfaces of the groove and both curved concave surfaces with a fixing member, it is possible to more effectively prevent the sliding mat from slipping and peeling.

Further, when a layer made of natural or artificial snow or ice particles is formed on the sliding mat, the snowboard can be slid in a more natural state, and there is also a protective effect on the sliding mat. .

[Brief description of drawings]

FIG. 1 is a perspective view showing an embodiment of a snowboard runway according to the present invention.

FIG. 2 is a sectional view taken along the line II-II in FIG.

FIG. 3 is a perspective view showing a structural example of a frame member in the snowboard runway of the present invention.

FIG. 4 is a plan view showing a configuration example of a sliding mat in a snowboard runway of the present invention.

5 is a cross-sectional view taken along line VV in FIG.

FIG. 6 is a cross-sectional view showing another embodiment of the snowboard runway of the present invention.

FIG. 7 is a perspective view showing another configuration example of the frame member in the snowboard runway of the present invention.

FIG. 8 is a plan view showing another configuration example of the sliding mat of the snowboard runway of the present invention.

[Explanation of symbols]

 1, 1'Snowboard runway 2 Slope 3 Groove 31 Bottom surface 32, 33 Side surface 34, 35 Curved concave surface 36 Edge 4 Frame member 41 Outer frame 42 Vertical plate 43 Horizontal plate 44 Small hole 5 Sliding mat 51 Unit mat 52 Base material 521 Frame 522 Rib 53 Protrusion 54 Male fitting part 541 Claw 55 Female fitting part 6 Fixing member 61 Embedded part 62 Hook part 7 Layer 8 Frame member 81 Bar material 82 Leg part 9 Sliding mat 91 Base material 92 Protrusion

Claims (10)

[Scope of utility model registration request] 1. A snowboard runway formed in a groove formed along a slope, comprising a frame member installed on at least a side surface of the groove, and an inner surface of the groove so as to cover the frame member. And a fixing member for fixing the sliding mat in the groove, wherein the sliding mat has a base material and a plurality of flexible members erected from the base material. A runway for a snowboard, characterized in that it is configured with a projection that it has. 2. The runway for a snowboard according to claim 1, wherein the inner surface of the groove is entirely or partially formed by a curved concave surface that is curved in a substantially arc shape. 3. The groove has a bottom surface, a pair of side surfaces, and curved concave surfaces that are respectively located between the bottom surface and the both side surfaces, and the bottom surface and the both side surfaces interpose the curved concave surface. The snowboard runway according to claim 1, wherein the runway is formed continuously. 4. A snowboard runway formed along a slope, having a bottom surface, a pair of side surfaces, and curved concave surfaces located between the bottom surface and the side surfaces, respectively. A frame member installed on at least both side surfaces and both curved concave surfaces of the groove, a sliding mat installed along the inner surface of the groove so as to cover the frame member, and the sliding mat fixed in the groove. And a fixing member for forming the snow mat, wherein the sliding mat is composed of a base material and a plurality of flexible projections provided upright from the base material. . 5. The snowboard runway according to claim 4, wherein the fixing member fixes the sliding mat on at least both side surfaces of the groove and both curved concave surfaces. 6. The snowboard runway according to claim 1, wherein the frame member is curved along the curvature of the inner surface of the groove. 7. The snowboard runway according to claim 1, wherein a part of the frame member is embedded in an inner surface of the groove. 8. The snowboard runway according to claim 1, wherein the run mat is formed by connecting a plurality of unit mats. 9. The sliding mat is composed of a sheet-shaped base material that can be curved and deformed, and a plurality of flexible projections provided upright from the sheet-shaped base material. 8. The snowboard runway according to any one of 8. 10. The runway for a snowboard according to claim 1, wherein a layer made of natural or artificial snow or ice particles is formed on the runway mat.