JP2707062B2 - Slope formation method for artificial skis - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for forming a slope dedicated to artificial skis for forming a slope dedicated to artificial skis.
It relates to.

[0002]

2. Description of the Related Art Conventionally, slopes used for playing roller skis, caterpillar skis, and the like include, for example, a ground with a paved surface, a ground with a paved surface and an artificial turf laid on the surface, and a natural turf on the soil surface. etc. laying the ground there is.

[0003] However, the former two grounds have the problem of environmental destruction due to paving, and the pavement is expensive, which is not preferable in terms of economic efficiency. The temperature becomes extremely high, and the need to sprinkle water from time to time is required,
Pavement impedes water permeability, which is also cumbersome in management.

[0004] In addition, in the case of a ground on which natural grass is laid, there is a problem that maintenance is extremely difficult as a matter of course.

Further, in the past, in order to form a competition course by erecting a gate or the like, in the case of a pavement surface, an appropriate device is required to erect the gate, and in addition, on a soil surface that is not paved. In such a case, it was very troublesome to pierce the gate if the soil surface was hard.

Accordingly, the present inventors have proposed a laying member (mat 1) used for forming a slope dedicated to artificial skis as Japanese Patent Application No. Hei 6-10082.

As shown in FIGS. 1 to 5, the mat 1 has a plurality of cylinders 4 connected by ribs 8 which are thinner than the height of the cylinders 4, and each side of the mat 1 has a male connecting portion 2a and a female connecting portion. Part 2b
(1m × 1
m). Therefore, the mat 1 is connected to the male connecting portion 2a and the female connecting portion 2a.
b, a plurality of them are connected vertically and horizontally and laid on a predetermined inclined surface for use.

[0008]

The inventor of the present invention has conducted various tests on the mat 1 and found that the following points were found.

[0009] It has been confirmed that when edging during a run with a roller ski, caterpillar ski, or the like, a force acts in the fall line direction (vertical direction) due to the edging, and the mat 1 slips down (vertically). . This is because the mat 1 is laid only by the locking action by the cylinder 4 piercing the ground surface.

When the mat 1 slides down in the direction of the fall line, the lower edge of the mat 1 laid below abuts against the end of the inclined surface to generate wrinkles. Is pushed upward by the reaction force from the end of the inclined surface, causing the mat 1 to be lifted. This lifting phenomenon spreads to the upper mat 1, so that the slope runs a wave and good sliding cannot be performed. Becomes

Since the mat 1 is made of a synthetic resin, it greatly expands and contracts due to a change in temperature. At low temperatures, the mat 1 contracts so that tension is applied to the male connecting portion 2a and the female connecting portion 2b of each mat 1. Becomes Therefore, if, for example, one of the arbitrary mats 1 laid vertically and horizontally is to be replaced and removed, and a new mat 1 is to be connected to the upper, lower, left and right mats 1, the mat 1 is contracted, which is very troublesome. (After repeated trials, the male connection 2 in the vertical direction
It has been confirmed that the connection between the male connection part 2a and the female connection part 2b in the lateral direction is not so troublesome. ). This is fatal in maintainability.

After all, in order to replace one mat 1, all the mats 1 must be laid again.

There is also a drawback that the mat 1 stretches at high temperatures and the mats 1 press against each other, so that the whole slope becomes wavy due to the force in the fall line direction at the time of the edging.

The present invention is to provide a method for forming a slope dedicated to artificial skis, which solves the above problems.

[0015]

The gist of the present invention will be described with reference to the accompanying drawings.

A synthetic resin mat 1 having a predetermined area on an inclined surface
A method of forming a slope dedicated to artificial skis by laying the mats vertically and horizontally, comprising providing a mat 1 having a locking portion 3 on the back surface thereof, and mats adjacent to each side of the mat 1 vertically and horizontally. 1 and a plurality of sets of two sets of hard vertical members 9 arranged on the inclined surface at intervals smaller than the width of the mat 1 in the longitudinal direction. Rigid horizontal members 10 are provided on each of the vertical members 9 at predetermined intervals in an orthogonal state, and a mat group 11 formed by connecting a plurality of mats 1 in a vertical direction by a connecting portion 2 is used for only one mat 1. The same mat group 11 is laid on the set of hard vertical members 9 by being locked by the stopper 3 with the hard vertical member 9 and the hard horizontal member 10, and a predetermined gap 14 is formed in the mat group 11 laid as described above. Lay vertically and lay the mats 11 in the vertical direction in the same manner. A plurality of mat groups 11 are laid by connecting the mats 1 of the respective mat groups 11 by the connecting portions 2 in the same manner as described above so that the plurality of mat groups 11 are also laterally adjacent to each other. The present invention relates to a method for forming a slope dedicated to artificial skis , which comprises laying a mat 1 on a surface.

In the method for forming a slope dedicated to artificial skis according to claim 1, the lower gap and the lower mat group (11) of the upper mat group (11) when the outside air temperature rises by about 25 ° C. from the room temperature as the predetermined gap (14). The method according to the present invention relates to a method for forming a slope dedicated to artificial skis, wherein the gap 14 is set in contact with an upper edge of the ski.

[0018]

[Effect] Each mat 1 in one mat group 11 has a connecting portion 2
And the predetermined mats 1 in this one mat group 11 are locked by the locking portion 3 and the rigid vertical member 9 and the rigid horizontal member 10, and each mat group 11 The mats 1 of the mat groups 11 on both sides (lateral direction) adjacent to the mats 1 of the one mat group 11 are connected by the connecting portion 2.

In each of the mat groups 11, the mat 1 of the mat group 11 has the locking portion 3, the hard vertical member 9 and the hard horizontal member 10 locked, and therefore does not slip off the inclined surface. Therefore, each mat 1 does not slip down even if it receives the force in the fall line direction due to the edging during sliding.

Further, the mats 11 are not connected to each other in the vertical direction, and a predetermined gap 14 exists. Therefore, even if the mat 1 expands due to a temperature change , the mat 1 is not lifted.
Will not occur. And this mat group 11 comrades
Replacement of any mat 1 can be performed well by the fixed gap 14
Will be.

[0021]

BRIEF DESCRIPTION OF THE DRAWINGS The drawings illustrate one embodiment of the present invention and will be described below.

The mat 1 according to the present embodiment is formed by integral molding of a synthetic resin. The reason for using a synthetic resin is to take into consideration the manufacturing efficiency, the weight reduction, and the safety when the slider falls down and abuts. Further, by using a synthetic resin, wear of a sliding portion such as a roller ski (for example, a tire) is prevented as much as possible.

This embodiment is described in Japanese Patent Application Nos. 4-138927 and 4-138 filed by the present applicant.
No. 928, Japanese Patent Application No. 4-138929, Japanese Patent Application No. 4-13
No. 8930 or the like is used to form a ski slope with wheels provided on the lower surface of a ski.

A 1 mx 1 m mat 1 is formed. The mat 1 has a structure in which a plurality of cylinders 4 are continuously connected by ribs 8 thinner than the height of the cylinders 4, and the cylinders 4 protrude from the back surface of the mat 1. The inner hole of the cylinder 4 serves as a hole 7 for imparting water permeability to the mat 1. The holes 7 make the mat 1 lighter and save resin.

The back surface of the mat 1 is made uneven by the cylinder 4 and serves as the locking portion 3 to which the hard vertical member 9 and the hard horizontal member 10 are locked.

On the surface of the mat 1, a convex semi-spherical R is formed.
Small protrusions 5 of 0 to 1.3 (mm) are provided in a protruding manner. The small projections 5 prevent a skier from slipping during skiing, especially during rainfall. The small projections 5 are set in a convex semi-spherical shape in order to make the grip force at the time of sliding equal in any direction.

On two adjacent sides of the mat 1, three male connecting portions 2a are protruded as connecting portions 2 respectively, and on the other two sides, a female connecting portion 2b is protruded.

The mats 1 are connected by fitting the male connecting portion 2a of one mat 1 to the female connecting portion 2b of another adjacent mat 1 (see FIGS. 4 and 5).

In the center of the mat 1, there is formed an annular concave groove 6 for fitting a pole, a gate, a marker and the like upright. The concave groove 6 is set to a depth that allows the runner to easily fall off even if the runner collides with the gate during the competition.

The mat 1 having the above-described structure is designed such that when each side is fixed, a physical internal stress is not generated with respect to a change of ± 25 ° C.

Specifically, the mat 1 having the above structure is formed of a polypropylene resin, and has a coefficient of linear expansion of 11
Set to × 10 ^-5 (the coefficient of linear expansion of rebar is 11.5 × 1
0 ^-6 , the longitudinal modulus of rebar is 2.1 × 10 ⁶ kg / c
m ² ). Therefore, when the outside temperature of the mat 1 becomes 50 ° C., the gap between the lower edge of the mat 1 of the upper mat group 11 and the upper edge of the mat 1 of the lower mat group 11 is 0 mm, Has a characteristic of being 7 mm at 25 ° C. and 14 mm at an outside air temperature of 0 ° C. Therefore, each mat group 11 is laid so that the vertical gap 14 between the mat groups 11 is 7 mm.

Next, a method of laying the mat 1 will be described.

First, the foundation is subjected to a mat 1 to prevent settlement (formation of a quarry layer) and a stabilizing treatment (removal of unevenness) for uneven landing to form an appropriate inclined surface.

Subsequently, a pair of two vertical reinforcing bars as the hard vertical members 9 are arranged in the fall line direction (longitudinal direction) of the plural sets of inclined surfaces at intervals of 50 to 60 cm on the inclined surfaces (FIG. 4). Note that a plurality of vertical reinforcing bars may be additionally provided between the two vertical reinforcing bars.) The upper part of each of these two vertical reinforcing bars is connected to a driving fixed body 13 via a turnbuckle 12. With this turnbuckle 12, the position of the vertical reinforcing bar with respect to the inclined surface can be appropriately adjusted.

Subsequently, stoppers 15 are fixed to the respective vertical reinforcing bars at intervals of about 5 m.

Subsequently, a horizontal reinforcing bar as a rigid horizontal member 10 having a vertical portion 10a parallel to the vertical reinforcing bar connected to the horizontal portion 10b is fitted between the cylinders 4 on the back surface of the mat 1.

Subsequently, the mat 1 with the horizontal rebar is placed on the vertical rebar in a state where the horizontal portion 10b is locked by the stopper 15 (the horizontal portion 10).
b is and the vertical rebar then placed in a state) perpendicular stopper 15
And a vertical reinforcing bar is inserted between the cylinders 4 of the mat 1 (horizontal reinforcing bar and
And the vertical rebar have a diameter that matches the gap between the four cylinders.
Adopt . ).

When the stopper 15 is not used,
The horizontal bar will be fixed to the vertical bar.

Subsequently, the four mats 1 are connected to the laid mat 1 in the vertical direction using the connecting portion 2, and a total of five mats 11 are laid on the inclined surface.

This work is similarly performed for each pair of vertical reinforcing bars, and the mats 11 of a set of five mats laid by this work are connected laterally by the connecting portion 2.

A set of five mats 11 is similarly laid above the plurality of mats 11.

The mat group 11 and the existing lower mat group 11
Does not concatenate with That is, the female connecting portion 2b of the lowermost mat 1 of the upper mat group 11 and the male connecting portion 2a of the uppermost mat 1 of the lower mat group 11 are cut off from a protruding portion from one side of the mat. deep.

Since the slope formed by laying the mat 1 in this manner is locked by the cylinder 4 and the vertical and horizontal reinforcing bars, a force acts in the direction of the fall line due to edging when the player slides. It does not slip down, so that no wrinkles occur on the mat 1 below the slope, so that the mat 1 does not lift,
The slope can be prevented from hitting the waves.

[0044] Also, all of the mat 1 is not connected in the vertical direction, since the predetermined number is divided for each (in this case five) and a predetermined gap 14 is formed, due to temperature changes, the mat 1 Even if inflated, the mat 1 is lifted.
No elephants will spawn, so no slopes will undulate
No. In addition, it is possible to exchange any mat 1 satisfactorily.
become.

The same applies when two or more horizontal reinforcing bars are provided on one mat 1.

[0046]

As described above, the present invention provides a method for forming a slope for exclusive use of artificial skis, which can perform maintenance well and can always provide a flat slope without ripples.
Becomes

[Brief description of the drawings]

FIG. 1 is a front view of a part of a mat according to an embodiment.

FIG. 2 is an enlarged front view of a part of mats according to the present embodiment before connection.

FIG. 3 is an enlarged front view of a part of mats according to the present embodiment after connection.

FIG. 4 is a cross-sectional view of a part of the mat of the present embodiment.

FIG. 5 is a cross-sectional view of a part of the mat of the present embodiment.

FIG. 6 is a process explanatory view of the present embodiment.

FIG. 7 is a process explanatory sectional view of the present embodiment.

FIG. 8 is a process explanatory view of the present embodiment.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Mat 2 Connecting part 3 Locking part 9 Hard vertical member 10 Hard horizontal member 11 Mat group 14 Gap

 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Hiroshi Sato 24, Akashi-cho, Tokamachi, Niigata Prefecture Homma Science Co., Ltd. Takao Ueno

Claims (2)

(57) [Claims] 1. A method of forming a slope for exclusive use of artificial skis by laying a mat of synthetic resin having a predetermined area on an inclined surface in a vertical and horizontal manner, wherein the mat having a locking portion formed on a back surface thereof is provided. Provided on each side of this mat are provided connecting portions that are connected to mats adjacent vertically and horizontally, and a plurality of sets of two hard vertical members arranged in a vertical direction at an interval smaller than the width of the mat are provided on the inclined surface. A set of mats formed by connecting a plurality of mats by connecting portions in the vertical direction with a plurality of mats provided in a perpendicular state at predetermined intervals on each of a pair of hard vertical members, and And laid on a set of hard vertical members by locking with the locking portion and the hard vertical member and the hard horizontal member, and a similar mat group is interposed in the mat group laid above with a predetermined gap. Laying vertically, and then laying mats vertically in the same way, In the same manner as described above, a plurality of mat groups are laid by connecting the mats of the respective mat groups by a connecting portion so that the plurality of mat groups laid in the vertical direction are also adjacent to the horizontal direction of the plurality of mat groups laid. A method of forming a slope dedicated to artificial skis , comprising laying a mat on the ski . 2. The method according to claim 1, wherein the predetermined gap includes a lower edge of the upper mat group and a lower mat group when the outside air temperature rises by about 25 ° C. from room temperature. A method for forming a slope dedicated to artificial skis, wherein the gap is set to be in contact with an upper edge.