JPH06300404A - Snow-making device for indoor ski area - Google Patents

Snow-making device for indoor ski area

Info

Publication number
JPH06300404A
JPH06300404A JP10994693A JP10994693A JPH06300404A JP H06300404 A JPH06300404 A JP H06300404A JP 10994693 A JP10994693 A JP 10994693A JP 10994693 A JP10994693 A JP 10994693A JP H06300404 A JPH06300404 A JP H06300404A
Authority
JP
Japan
Prior art keywords
snow
indoor
cold air
ski resort
artificial
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
JP10994693A
Other languages
Japanese (ja)
Inventor
Yoshiaki Hoshino
吉明 星野
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mitsubishi Heavy Industries Ltd
Original Assignee
Mitsubishi Heavy Industries Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Mitsubishi Heavy Industries Ltd filed Critical Mitsubishi Heavy Industries Ltd
Priority to JP10994693A priority Critical patent/JPH06300404A/en
Publication of JPH06300404A publication Critical patent/JPH06300404A/en
Withdrawn legal-status Critical Current

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25CPRODUCING, WORKING OR HANDLING ICE
    • F25C3/00Processes or apparatus specially adapted for producing ice or snow for winter sports or similar recreational purposes, e.g. for sporting installations; Producing artificial snow
    • F25C3/04Processes or apparatus specially adapted for producing ice or snow for winter sports or similar recreational purposes, e.g. for sporting installations; Producing artificial snow for sledging or ski trails; Producing artificial snow
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25CPRODUCING, WORKING OR HANDLING ICE
    • F25C2303/00Special arrangements or features for producing ice or snow for winter sports or similar recreational purposes, e.g. for sporting installations; Special arrangements or features for producing artificial snow
    • F25C2303/048Snow making by using means for spraying water
    • F25C2303/0481Snow making by using means for spraying water with the use of compressed air

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)

Abstract

PURPOSE:To make artificial snow of good quality by means of a snow gun type snow-making machine at an indoor ski area. CONSTITUTION:Under and in the rear of the nozzle of a snow gun 1 a blowoff hole 3 for an under stream of cold air is opened. By jetting a stream of cold air 4 to a region where a spray of waterdrops 5 shot out substantially horizontally from the snow gun 1 fall independently cold heat can be supplied to the specific locality where the water drops 5 freeze. Therefore it is possible to make artificial snow of good quality with a low moisture content.

Description

【発明の詳細な説明】Detailed Description of the Invention

【0001】[0001]

【産業上の利用分野】本発明は、屋内人工スキー場にお
ける造雪装置に関し、特に水滴を噴出するスノーガンと
冷気を吹き出す吹出し口との相対位置関係を改良して良
質の人工雪が得られるようにした屋内人工スキー場用造
雪装置に関する。なお、屋内型降雪レジャープラントに
も適用可能である。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a snow making device in an indoor ski resort, and more particularly, to improve the relative positional relationship between a snow gun for ejecting water droplets and an outlet for ejecting cool air so that high quality artificial snow can be obtained. The present invention relates to a snow making device for an indoor artificial ski resort. It can also be applied to indoor snowfall leisure plants.

【0002】[0002]

【従来の技術】屋外のスキー場では、すでにスノーガン
式の人工降雪機が多用されている。スノーガン式の人工
降雪機は、約7kg/cm2に加圧した空気と水とを混合し
てスノーガンから大気中に噴霧し、噴霧された水滴の断
熱膨張と、外気との接触による冷却とにより、人工雪を
造成するものである。なおこの場合、外気温が−1℃以
下でないと水滴が凍結されず雪にならない。スノーガン
式の人工降雪機の場合、スノーガンより局所的に多量の
水が噴霧され、これが凍結して人工雪となるのである
が、水の凍結する際の潜熱が周囲の空間に放出される。
2. Description of the Related Art In outdoor ski areas, snow gun type artificial snow machines have been widely used. A snow gun type artificial snow machine mixes air and water pressurized to about 7 kg / cm 2 and sprays it into the atmosphere from a snow gun, and adiabatic expansion of the sprayed water droplets and cooling by contact with the outside air , To create artificial snow. In this case, if the outside air temperature is not lower than -1 ° C, the water droplets are not frozen and do not turn into snow. In the case of a snow gun type artificial snow machine, a large amount of water is sprayed locally from the snow gun, and this freezes into artificial snow, but the latent heat when the water freezes is released to the surrounding space.

【0003】屋外では冷気が無限に存在し、潜熱は大気
に吸収されるが、屋内人工スキー場では冷気吹出し口か
ら絶え間なく冷気を供給しなければ良質の人工雪を造成
することができない。一方、屋内人工スキー場の場合、
屋根(天井)や側壁により閉じられた屋内空間をスキー
場として維持するため、通常営業時には屋内温度を−3
℃以下に、また降雪時には−5℃以下に保つための空調
設備が設けられている。従来、人工スキー場において、
造雪装置としてスノーガン式の人工降雪機を設置した例
は知られていないが、上述のような空調設備をそなえた
屋内人工スキー場にスノーガン式の人工降雪機を設置し
た場合、図8に示す屋内人工スキー場が想定できる。
There is an infinite amount of cold air outdoors, and the latent heat is absorbed by the atmosphere. However, indoor artificial ski resorts cannot produce high quality artificial snow unless the cold air is constantly supplied from the cold air outlet. On the other hand, in case of indoor artificial ski resort,
In order to maintain the indoor space enclosed by the roof (ceiling) and side walls as a ski area, the indoor temperature should be -3 during normal business hours.
Air conditioning equipment is installed to keep the temperature below ℃ and below -5 ℃ during snowfall. Conventionally, in artificial ski resorts,
Although no example of installing a snow gun type artificial snow machine as a snow making device is known, when the snow gun type artificial snow machine is installed in an indoor artificial ski resort equipped with the above-described air conditioning equipment, it is shown in FIG. An indoor artificial ski resort can be envisioned.

【0004】すなわち図8に示すように、従来の屋内人
工スキー場20は、屋根21と側壁22とにより形成された屋
内空間23をそなえ、さらに、左右の側壁22の比較的上部
に冷気吹出し口24が屋内人工スキー場の長手方向に多数
均等に設けられていて、空調機25を介して冷気を屋内空
間23へ供給して室温を下げるような構成となっている。
このような構成の屋内人工スキー場にスノーガン式の人
工降雪機26を設置するとすれば、図8に示すように、ス
ノーガン式降雪機26は冷気吹出し口24の下方に設置され
ることになる。なお図8中の符号27は人工雪(積雪),
矢印28は循環空気流をそれぞれ示している。
That is, as shown in FIG. 8, a conventional indoor artificial ski resort 20 has an indoor space 23 formed by a roof 21 and side walls 22, and further, cool air outlets are relatively provided above the left and right side walls 22. A large number of 24 are provided evenly in the longitudinal direction of the indoor artificial ski resort, and cold air is supplied to the indoor space 23 via the air conditioner 25 to lower the room temperature.
If the snow gun type artificial snow machine 26 is installed in the indoor artificial ski resort having such a structure, the snow gun type snow machine 26 will be installed below the cold air outlet 24 as shown in FIG. Reference numeral 27 in FIG. 8 is artificial snow (snow),
The arrows 28 respectively indicate the circulating air flow.

【0005】[0005]

【発明が解決しようとする課題】ところで、スノーガン
式の人工降雪機を屋内人工スキー場に設置する場合、上
述のように、良質の人工雪をうるために冷気吹出し口か
ら絶え間なく冷気を供給しなければならず、かつ屋内で
は空気の循環が早くないため、局所的な放熱に対しては
冷気吹出し口を放熱部(スノーガンから噴霧された水滴
の凍結部)に対して近くに配置しなければ効果がない
が、図8に示した屋内人工スキー場ではこのような条件
を満たしていないという問題点がある。本発明は、この
ような問題点の解決をはかろうとするもので、スノーガ
ンより噴霧された水滴は水平に飛び出た後、水平方向の
スピードがなくなると、重力の関係で鉛直方向に落下し
始めるので、この落下領域に冷気を供給して水滴を効果
的に冷却することにより、良質の人工雪をうるようにし
た屋内人工スキー場用造雪装置を提供することを目的と
する。
By the way, when a snow gun type artificial snow machine is installed in an indoor artificial ski resort, as described above, in order to obtain high quality artificial snow, cold air is continuously supplied from the cold air outlet. Since the air circulation is not fast indoors, the cold air outlet must be placed close to the heat dissipation part (freezing part of water droplets sprayed from the snow gun) for local heat dissipation. Although it is not effective, the indoor artificial ski resort shown in FIG. 8 has a problem that such a condition is not satisfied. The present invention is intended to solve such a problem, and after the water droplets sprayed from the snow gun jump out horizontally, when the speed in the horizontal direction disappears, the water droplet starts to fall vertically due to gravity. Therefore, it is an object of the present invention to provide a snow making device for an indoor artificial ski resort in which high quality artificial snow is obtained by supplying cold air to this falling area to effectively cool water drops.

【0006】[0006]

【課題を解決するための手段】上述の目的を達成するた
め、本発明の屋内人工スキー場用造雪装置は、屋内人工
スキー場において、屋根と側壁とにより形成された屋内
空間をそなえるとともに、上記側壁上で上記屋内人工ス
キー場の長手方向に沿って多数均等に取付けられた上記
屋内空間の冷却用の上部冷気吹出し口をそなえ、同上部
冷気吹出し口の下方で上記屋内スキー場の長手方向に沿
って多数のスノーガンが上記側壁に均等に取付けられ、
同各スノーガンの各ノズルの下部後方に隣接して開口す
る下部冷気吹出し口が上記側壁に取付けられていること
を特徴としている。
In order to achieve the above-mentioned object, a snow making device for an indoor artificial ski resort according to the present invention has an indoor space formed by a roof and a side wall in an indoor artificial ski resort, and Along the longitudinal direction of the indoor artificial ski resort on the side wall, a plurality of evenly mounted upper cool air outlets for cooling the indoor space are provided, and the longitudinal direction of the indoor ski resort is below the upper cool air outlet. A number of snow guns are evenly attached to the side wall,
It is characterized in that a lower cool air outlet opening adjacent to the lower rear of each nozzle of each snow gun is attached to the side wall.

【0007】[0007]

【作用】上述の本発明の屋内人工スキー場用造雪装置で
は、屋内人工スキー場の長手側面に多数均等にスノーガ
ンを配置すると共に各スノーガンの下部後方に冷気吹出
し口を配設することにより、スノーガンの噴出口より略
水平に噴出された水滴の自由落下運動の軌跡をねらって
冷気が吹出して、水滴群と冷気との接触が効率良く行な
われる。
In the above-described snow making device for an indoor artificial ski resort of the present invention, by arranging a large number of snow guns evenly on the longitudinal side surface of the indoor artificial ski resort and arranging the cool air outlets at the lower rear of each snow gun, Cold air blows out aiming at the locus of the free falling motion of the water droplets ejected from the ejection port of the snow gun almost horizontally, and the water droplet group and the cold air are efficiently contacted.

【0008】[0008]

【実施例】以下、図面により本発明の一実施例としての
屋内人工スキー場用造雪装置について説明すると、図1
は図2のA−A矢視断面図に相当する要部側面図、図2
は図1のB−B矢視断面図、図3は作用説明用の模式正
面図、図4は屋内造雪実験装置の全体構造図、図5(a)
〜(c)はスノーガンと下部冷気吹出し口との相対位置関
係の3つのパターンを示す模式図、図6,図7(a),(b)
はいずれも実験結果を示すグラフである。
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An explanation will be given of a snow making device for an indoor artificial ski resort according to an embodiment of the present invention with reference to the drawings as follows.
2 is a side view of a main part corresponding to a sectional view taken along the line AA of FIG.
1 is a sectional view taken along the line BB of FIG. 1, FIG. 3 is a schematic front view for explaining the action, FIG. 4 is an overall structural view of an indoor snow making experiment device, and FIG. 5 (a)
~ (C) is a schematic diagram showing three patterns of the relative positional relationship between the snow gun and the lower cold air outlet, Figs. 6, 7 (a), (b)
Are graphs showing experimental results.

【0009】この実施例の屋内人工スキー場も、屋根21
と側壁22とにより形成された屋内空間23をそなえ、さら
に左右の側壁22の比較的上部に、冷気吹出し口24が屋内
人工スキー場の長手方向に多数均等に設けられている。
なお図中の符号8は人工芝を敷設された傾斜面を、符号
9はアンカーを、符号10は梁を、また符号11は柱をそれ
ぞれ示している。左右の側壁22上で冷気吹出し口24の下
方に、スノーガン1が屋内人工スキー場の長手方向に、
多数均等に取付けられている。さらに、各スノーガン1
のノズル1aの下部後方に隣接して開口部をもつ、複数
の下部冷気吹出し口3が設けられている。図2中の符号
6はスキーヤー用のリフト設備を示している。
The indoor artificial ski resort of this embodiment also has a roof 21
A side wall 22 and an indoor space 23 formed by the side walls 22, and a large number of cold air outlets 24 are evenly provided in the longitudinal direction of the indoor artificial ski area at relatively upper portions of the left and right side walls 22.
In the figure, reference numeral 8 indicates an inclined surface on which artificial grass is laid, reference numeral 9 indicates an anchor, reference numeral 10 indicates a beam, and reference numeral 11 indicates a pillar. On the left and right side walls 22 below the cold air outlet 24, the snow gun 1 extends in the longitudinal direction of the indoor artificial ski resort.
Many are installed evenly. In addition, each snow gun 1
A plurality of lower cool air outlets 3 having openings are provided adjacent to the lower rear of the nozzle 1a. Reference numeral 6 in FIG. 2 indicates a lift facility for skiers.

【0010】上述の構成において、上部吹出し口24から
屋内空間23に吹出される冷気4aにより屋内空間23の室
温が下げられる。一方、下部冷気吹出し口3から吹出さ
れる冷気4は、スノーガン1のノズルから噴出される水
滴5に接触して、これを凍らせる。すなわち図3に示す
ように、スノーガン1のノズル1aより噴霧された水滴
5は略水平に飛び出したのち、水平方向のスピードがな
くなるにつれて、重力の関係で鉛直方向に落下し始める
(自由落下運動)。そして、この水滴の自由落下領域C
にスノーガン1の下部に取付けられている下部冷気吹出
し口3から冷気4を吹込んで水滴と接触させて、良質の
人工雪27が得られる。
In the above structure, the room temperature of the indoor space 23 is lowered by the cool air 4a blown from the upper outlet 24 into the indoor space 23. On the other hand, the cold air 4 blown out from the lower cold air blowout port 3 comes into contact with the water droplets 5 ejected from the nozzle of the snow gun 1 and freezes them. That is, as shown in FIG. 3, the water droplets 5 sprayed from the nozzle 1a of the snow gun 1 jump out substantially horizontally, and then start to fall vertically due to gravity as the horizontal speed is lost (free fall motion). . And the free fall area C of this water drop
The cold air 4 is blown from the lower cold air outlet 3 attached to the lower part of the snow gun 1 and brought into contact with water droplets, so that high quality artificial snow 27 is obtained.

【0011】水滴の自由落下領域Cに冷気を吹込むこと
により、良質の人工雪が得られることを立証するため
に、発明者は次の実験を行なった。図4はこの実験に用
いられた屋内造雪実験装置の全体構造図を示しており、
スノーガン1として単孔式のものが用いられた。図4中
の符号13は実験槽、符号14は加圧冷水タンク、符号15は
圧縮空気タンク、符号16は空調機、符号17はダクト、符
号18はファンをそれぞれ示している。
In order to prove that a good quality artificial snow can be obtained by blowing cold air into the free falling area C of water drops, the inventor conducted the following experiment. Fig. 4 shows the overall structure of the indoor snow making experimental device used in this experiment.
A single-hole type snow gun 1 was used. Reference numeral 13 in FIG. 4 indicates an experimental tank, reference numeral 14 indicates a pressurized cold water tank, reference numeral 15 indicates a compressed air tank, reference numeral 16 indicates an air conditioner, reference numeral 17 indicates a duct, and reference numeral 18 indicates a fan.

【0012】そして、実験は次の条件のもとに、下部冷
気吹出し口3とスノーガン1との相対位置関係について
次の3つのパターンp1,P2,P3について行なっ
た。 [P1] スノーガン1が下部冷気吹出し口3の下部前
方に位置するとともに冷気4と水滴5とが略同じ方向に
流れるパターン〔図5(a)〕。 [P2] スノーガン1が下部冷気吹出し口3の下部前
方に位置するとともに冷気4の流れ方向と水滴5の流れ
方向とが交叉するパターン〔図5(b)〕。 [P3] 下部冷気吹出し口3がスノーガン1の下部後
に位置するとともに冷気4が水滴5の自由落下領域に噴
出されるパターン〔図5(c)〕。 [実験条件] ガン運転条件 造雪量 10l/min 気水
比 60〜200 空調条件 ダクト送風量 500Nm3/min 吸込温度 −4〜−15℃ 相対湿度 80〜98%
Then, the experiment was carried out on the following three patterns p1, P2 and P3 with respect to the relative positional relationship between the lower cold air outlet 3 and the snow gun 1 under the following conditions. [P1] A pattern in which the snow gun 1 is located in front of the lower portion of the lower cold air outlet 3 and the cold air 4 and the water droplets 5 flow in substantially the same direction [FIG. 5 (a)]. [P2] A pattern in which the snow gun 1 is located in front of the lower part of the lower cool air outlet 3 and the flow direction of the cool air 4 and the flow direction of the water droplet 5 intersect with each other [Fig. 5 (b)]. [P3] A pattern in which the lower cool air outlet 3 is located behind the lower part of the snow gun 1 and the cool air 4 is ejected to the free falling area of the water droplet 5 [FIG. 5 (c)]. [Experiment Conditions] Cancer operating conditions Zoyukiryou 10l / min air-water ratio 60-200 conditioning condition duct blast volume 500 Nm 3 / min inlet temperature -4 to-15 ° C. The relative humidity of 80-98%

【0013】図6は、各パターンについて同一の運転条
件(吸込温度−5℃,湿度95%以上,気水比180)のも
とに実験をそれぞれ60回行なって、得られた雪質(密
度)を示しており、また図7(a),(b)は同P2,P3の
場合の凍結比を示している。図6に示された実験結果よ
り、P3の場合、雪質が良好(雪密度の数値が小さいほ
ど雪質が良い)であることが判明し、また、図7(a),
(b)に示された実験結果より、P3の場合、凍結比が1.0
に近く雪質が良好なことが判明した(凍結比が1.0から
離れるほど水分が多い)。
FIG. 6 shows that the snow quality (density) obtained by conducting the experiment 60 times under the same operating conditions (intake temperature −5 ° C., humidity 95% or more, air-water ratio 180) for each pattern. ), And FIGS. 7 (a) and 7 (b) show the freezing ratios for the same P2 and P3. From the experimental results shown in FIG. 6, it was found that in the case of P3, the snow quality is good (the smaller the snow density value, the better the snow quality), and FIG. 7 (a),
From the experimental results shown in (b), in the case of P3, the freezing ratio is 1.0
It was found that the snow quality was close to that (the more the freezing ratio is from 1.0, the more water there is).

【0014】[0014]

【発明の効果】以上詳述したように、屋内の閉空間では
通常屋外ほど空気が対流していないためスノーガンより
噴霧されるような局所的な熱源に冷気を供給しずらい
が、本発明の屋内人工スキー場用造雪装置によれば、下
部冷気吹出し口をスノーガンの下部後方に配置すること
により、局所的な熱源に冷気を効果的に供給することが
可能となり、屋内で良質な雪を造ることが可能となると
いう利点が得られる。
As described above in detail, in the indoor closed space, air is not convected as much as outdoors, so it is difficult to supply cold air to a local heat source that is sprayed from a snow gun. According to the snow making device for an indoor artificial ski resort, by arranging the lower cold air outlet at the lower rear of the snow gun, it becomes possible to effectively supply cold air to a local heat source, and to obtain high quality snow indoors. The advantage is that it is possible to build.

【図面の簡単な説明】[Brief description of drawings]

【図1】本発明の一実施例としての屋内人工スキー場用
造雪装置を示す要部側面図で図2のA−A矢視断面図。
FIG. 1 is a side view of a main part showing a snow making device for an indoor artificial ski resort according to an embodiment of the present invention, which is a sectional view taken along the line AA of FIG.

【図2】図1のB−B矢視断面図。FIG. 2 is a sectional view taken along the line BB of FIG.

【図3】作用説明用の模式正面図。FIG. 3 is a schematic front view for explaining the operation.

【図4】屋内造雪実験装置の全体構造図。FIG. 4 is an overall structural diagram of an indoor snow making experiment device.

【図5】(a) パターン1の模式図。(b) パターン2の模
式図。(c) パターン3の模式図。
5A is a schematic diagram of pattern 1. FIG. (b) A schematic diagram of pattern 2. (c) A schematic diagram of pattern 3.

【図6】実験結果を示すグラフ。FIG. 6 is a graph showing experimental results.

【図7】(a) 実験結果を示すグラフ。(b) 実験結果を示
すグラフ。
FIG. 7 (a) is a graph showing experimental results. (b) Graph showing experimental results.

【図8】従来の屋内人工スキー場にスノーガン式の人工
降雪機を設置した場合の想定図。
FIG. 8 is a view showing a case where a snow gun type artificial snow machine is installed in a conventional indoor artificial ski resort.

【符号の説明】[Explanation of symbols]

1 スノーガン 3 下部冷気吹出し口 4 冷気 5 水滴 6 リフト設備 8 人工芝 9 アンカー 10 梁 11 柱 20 屋内人工スキー場 21 屋根 22 側壁 23 屋内空間 24 上部冷気吹出し口 25 空調機 26 スノーガン 27 人工雪 1 Snow gun 3 Lower cold air outlet 4 Cold air 5 Water drop 6 Lift facility 8 Artificial grass 9 Anchor 10 Beam 11 Pillar 20 Indoor artificial ski resort 21 Roof 22 Side wall 23 Indoor space 24 Upper cold air outlet 25 Air conditioner 26 Snow gun 27 Artificial snow

Claims (1)

【特許請求の範囲】[Claims] 【請求項1】 屋内人工スキー場において、屋根と側壁
とにより形成された屋内空間をそなえるとともに、上記
側壁上で上記屋内人工スキー場の長手方向に沿って多数
均等に取付けられた上記屋内空間の冷却用の上部冷気吹
出し口をそなえ、同上部冷気吹出し口の下方で上記屋内
スキー場の長手方向に沿って多数のスノーガンが上記側
壁に均等に取付けられ、同各スノーガンの各ノズルの下
部後方に隣接して開口する下部冷気吹出し口が上記側壁
に取付けられていることを特徴とする、屋内人工スキー
場用造雪装置。
1. An indoor artificial ski resort having an indoor space formed by a roof and a side wall, and a plurality of the indoor spaces mounted evenly along the longitudinal direction of the indoor artificial ski resort on the side wall. An upper cooling air outlet for cooling is provided, and a number of snow guns are evenly attached to the side wall below the upper cooling air outlet along the longitudinal direction of the indoor ski resort. A snow making device for an indoor artificial ski resort, wherein lower cold air outlets adjacent to each other are attached to the side wall.
JP10994693A 1993-04-13 1993-04-13 Snow-making device for indoor ski area Withdrawn JPH06300404A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10994693A JPH06300404A (en) 1993-04-13 1993-04-13 Snow-making device for indoor ski area

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10994693A JPH06300404A (en) 1993-04-13 1993-04-13 Snow-making device for indoor ski area

Publications (1)

Publication Number Publication Date
JPH06300404A true JPH06300404A (en) 1994-10-28

Family

ID=14523131

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10994693A Withdrawn JPH06300404A (en) 1993-04-13 1993-04-13 Snow-making device for indoor ski area

Country Status (1)

Country Link
JP (1) JPH06300404A (en)

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