JPH087325Y2 - Artificial snowfall equipment - Google Patents

Description

[Detailed description of the device]

[0001]

[Industrial application field] The present invention is applied to an environmental test room, a museum,
The present invention relates to an artificial snowfall device that can immediately make artificially made snowfall at any time at broadcasting stations, theaters, amusement parks, various event venues, and the like.

[0002]

BACKGROUND ART Conventional artificial snow device, freezing cold
Brush the snow generated on the surface of the snow trap inside the room
Use a scraper or other snow scraping device to scrape off snow.
There is a means to make it .

[0003]

[Challenges devised to solve the above such conventional artificial
With the snowfall device, stop the operation of the snow scraper when snowfall is not needed.
It has stopped. If this operation is stopped for a long time, the snow scraping device
Brushes and scrapers freeze on the snow traps, causing a restart
The brushes and scrapers in
It is difficult to immediately and immediately make snowfall according to the progress of the program at a theater, amusement park, event venue, etc.
It was difficult .

When it is necessary to make a snowfall
There are some types of snow that use chemically molded products, but artificial snow made from chemically molded products does not fall like actual snow, and the texture is very different from the actual snow, so it is not realistic. There was a problem.

The present invention has been proposed to solve the problems of the prior art, and an artificial snowfall device capable of immediately falling snow artificially made by freezing at any time. The purpose is to provide.

[0006]

To achieve this object, the present invention comprises a breathable material in which a low temperature air is circulated by a cooler and a low temperature air flow is circulated. A snow catcher is installed, fog is ejected from the fog generator into the snow making room to grow artificial snow on the snow catcher, and the artificial snow grown on this snow catcher is removed by a snow scraping device. In an artificial snowfall device that causes snow to fall, a non-ventilated part that can be operated without the snow scraping device contacting the snow trapping body is used.
A standby operation area is provided to allow the snow scraping device to escape from the standby operation area and move up and down in response to a snowfall command when a predetermined waiting time has elapsed or when the snow trap has a predetermined thickness of snow. The artificial snow on the surface of the snow catching body is scraped off by this.

[0007]

According to the above-described structure, the artificial snow grown on the snow catcher during the standby operation can be immediately scraped off by the snow scraping device when a snowfall command is issued.

Even if the snow scraping device is to be started at any time without performing the standby operation, it is difficult to start the snow scraping device immediately due to freezing at a low temperature and a timing delay occurs.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A concrete embodiment of an artificial snowfall device according to the present invention will be described below in detail with reference to the drawings.

In FIGS. 1 and 2, a snow making chamber 3 is provided above a lateral air passage 2 provided in a lower portion of the apparatus main body 1 surrounded by a heat insulating wall 1a. A cooler 5 is installed laterally in the chamber 3, and the cooling air blown out from the cooler 5 is circulated in the device body 1 by a cooling circulation fan 6, and the snow-making chamber 3 is, for example, -5 °. It is maintained at a low temperature of C or lower.

In the upper part of the snow making chamber 3, there is provided a breathable snow catching body 7 made of, for example, a synthetic resin cloth material or net material. As shown in FIG. 2, the snow catching body 7 is stretched in the up-down direction between the upper and lower holding plates 8 and 9 which are alternately provided, and the snow generating chambers 10 are formed between the snow catching bodies 7. The sub-freezing low-temperature air generated by the cooler 5 is sent to the snow generation chamber 10 from the air supply port 4a by the circulation fan 6, passes through the snow trap 7 while rising, and then returns from the return air port 4b to the cooler 5. Then, it is cooled and sent out again. In the figure, arrow P indicates the flow of cooling air.

A two-fluid nozzle 12 connected to pipes 11a and 11b into which water and pressurized air are sent from the outside is attached to the upper holding plate 8, and snow is generated from this nozzle 12 which constitutes a fog generator. A fine mist is ejected into the chamber 10. The mist touches the low temperature air in the snow generation chamber 10 and immediately freezes, forming ice crystals of small particles and adhering to the inner surface of the snow trap 7. In the snow catching body 7, artificial snow grows from the ice crystals, and a snow layer is formed on the inner surface of the snow catching body 7.

On the outer surface of the snow catcher 7, a snow scraping device 14 composed of a rotating brush or the like which can be vertically moved while rotating on its own is installed across the width direction.
By reciprocating in the vertical direction while hitting the snow catching body 7, the snow layer on the inner surface is removed.

The snow scraping device 14 has a brush 13 planted in a casing 13a of a motor 13. This motor is designed so that a shaft 13c of an armature 13b does not rotate but a casing 13a is rotated by a reaction force. is there.
Reference numeral 13d in the drawing indicates a lead wire for energizing the armature.

There are various vertical movement mechanisms of the snow scraping device 14, and one example thereof will be described. To the trunk shaft 23 driven by the motor 22, an upper drive shaft 24 orthogonal to the trunk shaft 23 is provided with a bevel gear set 25. The chain 27, which is sprocket 26 fixed to each upper drive shaft, is endlessly hung to a sprocket 29 fixed to a lower driven shaft 28.
The chain can be moved up and down in the vertical direction by the forward and reverse drive of 2.

However, both ends of the armature shaft 13c in the snow scraping device are fixed to the attachment 30 attached to one side of the chain, and therefore the motor 2
The snow scraping device 14 is moved up and down by the forward and reverse driving of 2. Moreover, in the snow scraping device, the casing is rotated as described above by energizing the armature.

A standby operation area 15 is provided below the snow catching body 7 so that the snow scraping device 14 can carry out a standby operation without coming into contact with the snow catching body 7. As shown in FIG. 5, the standby operation area 15 includes the snow catcher 7
Non provided with a cover portion 16 over the outer surface side lower portion of the width direction
The snow scraping device 1 is composed of a ventilation part , and inside the cover part 16.
4 is driven idle.

When the waiting time has elapsed, the motor 22 is started and the snow scraping device 14 is activated by the timer when a snow scraping command is issued by a timer or when the snow layer formed on the snow trapping body reaches a predetermined thickness. The artificial snow that has grown out of the standby operation area 15 and moved up and down and grown on the snow catching body 7 during the standby operation is scraped. The artificial snow scraped off is dropped into the wind passage 2.

Each air passage 2 communicating with the snow-generating chamber 10 is provided so as to laterally penetrate the lower part of the device body 1, and a blower 18 and a damper 19 for adjusting the amount of blown air are provided on the air intake 2a side.
Are attached respectively. A damper 20 for adjusting the amount of snowfall and for turning the snowfall on and off is attached to the outlet 2b of the air passage 2 protruding to the front side of the apparatus body 1. When the dampers 19 and 20 are opened and air is blown into the air passages 2 and 2 by the blower 18, the artificial snow falling in the air passages 2 and 2 from the snow generation chambers 10 and 10 is blown out from the outlet 2b.

Next, the construction of the standby operation area 15 of another embodiment shown in FIG. 6 will be described. In this embodiment, the cover portion 21 serving as a standby operation area 15 is provided over the width direction under the snow captor 7, the lower edge of the snow captor 7 in an upper portion of the cover portion 21 is secured , Cover
21 constitutes a non-ventilation part . The snow scraping device 14 is preliminarily operated in the standby operation area 15 in the cover portion 21.

[0021]

As described above, according to the present invention, a standby operation area for performing a preliminary operation of the snow scraping device is provided , and the snow scraping device operates even in the standby area.
The brush freezes on the wall in the waiting area, or inside the motor.
The lubricating oil of No. does not freeze , and the artificial snow can be immediately scraped off from the snow catcher by the snow scraping device when a snowfall command is issued.

Therefore, when it is snowed at an event or show such as a broadcasting station, a theater, an amusement park, an event site, etc., there is an effect that it can be snowed in a timely manner according to the progress of the program.

[0023] In addition, the brush of the snow scraper and the motor
Since the lubricating oil does not freeze, an electric heater to prevent freezing is used.
It is not necessary to provide a heating means such as a heater in the snow scraping device.

[Brief description of drawings]

FIG. 1 is a configuration diagram showing an embodiment of an artificial snowfall device according to the present invention.

FIG. 2 is a sectional view taken along line AA of FIG.

FIG. 3 is a partially cutaway front view of the snow scraping device.

FIG. 4 is a partial side view of the above.

FIG. 5 is a vertical cross-sectional view showing the configuration of a standby operation area.

FIG. 6 is a vertical cross-sectional view showing the configuration of a standby operation area according to another embodiment.

FIG. 7 is a plan view showing a drive mechanism of the snow scraping device.

[Explanation of symbols]

 1 ... Device body 1a ... Insulation wall 2 ... Air passage 2a ... Air intake 2b ... Outlet 3 ... Snowmaking room 5 ... Cooling Cooling air circulation fan 7 ... Snow catcher 8, 9 ... Holding plate 10 ... Snow generation chamber 11a, 11b ... Pipe 12 ... Two-fluid nozzle 13 ... ・ Motor for scraping device 14 ・ ・ ・ ・ ・ ・ Snow scraping device 15 ・ ・ ・ ・ Standby operation area 16, 21 ・ ・ ・ ・ Cover part 17 ・ ・ ・ ・ ・ ・ Brush 18 ・ ・ ・ ・ ・ ・ Blower 19 20 ... Damper 22 ... Vertical drive motor

Claims (1)

[Scope of utility model registration request] 1. A snow trap made of a breathable material is installed in a snow making room in which a low temperature air is circulated by a cooler, and a fog generator is provided in the snow making room. In the artificial snowfall device, the artificial snow is spouted from the snow trap to grow artificial snow on the snow catcher, and the artificial snow grown on the snow catcher is wiped off by a snow scraping device to produce snow. A non-ventilated part that can be operated without contact with the scraping device
A standby operation area is provided to allow the snow scraping device to escape from the standby operation area and move up and down in response to a snowfall command when a predetermined waiting time has elapsed or when the snow trap has a predetermined thickness of snow. An artificial snowfall device that scratches the artificial snow on the surface of the snow catcher.