JPH0124540Y2 - - Google Patents

Description

[Detailed Description of the Invention] Conventional artificial snow-making devices generate fog from a nozzle installed on the ceiling of a low-temperature room, and the fog is frozen on its way down to form snow. However, with this type of artificial snowmaking device,
The falling snow has small particle sizes, and is far from natural snow that falls still.

Therefore, the applicant's company collects and expands artificially created ice crystals using a trap to form a snow layer.
We have previously developed an artificial snow-making device that can make snow by scraping off the snow layer with a scraper to form snowflakes that resemble natural snowflakes.

The present invention further improves the above-mentioned device, and more specifically, instead of scraping off the snow layer that has grown on the trapping body with a scraper, the snow layer is struck with a hitting body made of an elastic material to form snowflakes. This device can be peeled off to cause snow to fall.The present invention will be explained below based on the drawings of the embodiments.

FIG. 1 shows a first embodiment of the present invention, in which reference numeral 1 denotes a snow generating chamber, which is provided above a snow generating chamber 2. As shown in FIG.

Inside the snow generation chamber 1, a two-fluid nozzle 3, which is a humidifier that sprays water together with air, is installed, as well as a cooler that supplies low-temperature air at a temperature below freezing into the room, causing fog to float and freeze. 4 and a blower 5 are provided.

Furthermore, an ice crystal trap 6 having appropriate flexibility and elastic restoring force is provided in the snow generating chamber, and an aggregate of elastic fibers is provided on the surface of the trap 6 opposite to the snow layer 8 generating surface. An elastic striking body 7 made of the following is provided.

If the snow layer 8 is formed on the inner surface of the catching body, the striking body 7 is placed on the outside of the catching body as shown in FIG. 8 is formed on the outer surface as shown in FIG. 2, it is provided on the inner surface of the capture body 6, and is reciprocated up and down by a lifting device (not shown).

This striking body 7 has, for example, filaments 7' such as nylon brushes radially arranged on the circumferential surface of an annular shaft 7a, and when the striking body 7 is provided outside the catching body 6, the striking body 7 shown in FIG. When the inner end of the striking body 7 is provided inside the capturing body 6, the inner periphery of the capturing body 6 is pushed inward as shown in FIG. The surface is formed to an appropriate size according to the diameter of the catching body 6 so that the outer end of the striking body 7 pushes out the surface.

The trapping body 6 is in the form of a capped tube with an opening at the bottom or a bottomed tube with an opening at the top, and is made of a ventilating material in which various fibers are braided into a net shape or a coarse cloth shape.

In the drawings, reference numeral 12 indicates a capture body attachment body made of a radial stay or the like, and 13 indicates a support body for the attachment.

In the artificial snowmaking device of the present invention described above, mist is sent into the trap 6 from the two-fluid nozzle 3,
This fog becomes ice crystals and floats inside the trapping body, and during this time, the ice crystals are captured and aggregated by the trapping body 6, and a snow layer 8 is generated on the trapping body.

This snow layer 8 is peeled off from the catching body 6 by hitting the catching body 6 from the opposite side of the snow layer surface by the elastic hitting body 7, and falls as thin snowflakes, thereby producing artificial snowfall. .

FIG. 4 shows the state in which the elastic hitting body 7 hits the captured body and the phenomenon in which the snow layer is peeled off from the captured body, which will be described below.

When the filaments of the striking body 7, the filaments 7', are forcibly moved in the direction of the arrow by the rising of the striking body 7 from the state shown in Fig. 4a, the filaments 7' resist elasticity as shown in Fig. 4b. As the striking body 7 is further moved, the fibers 7' are repulsed and transferred from the position indicated by the chain line to the position indicated by the solid line as shown in FIG.

During this repulsion transition, the shaded area of the captured body 6 is struck by the filaments 7', and due to the impact, the snow layer 8' that had been formed in the shaded area of the captured body 6 is peeled off from the captured body. Artificial snowfall is created by flying out and falling in the form of thin snowflakes.

As described above, according to the present invention, the snow layer 8 generated on the catching body 6 is struck by the elastic striking body 7 and is shaken off, so to speak. Since the catching body 6 having elastic restoring force is hit by the restoring action based on the elastic repulsion against deformation,
The snow layer does not fall vertically downward along the catcher 6,
Since the hitting body 7 gives horizontal kinetic energy and falls, it is possible to produce artificial snowfall that is closer to natural snowfall.

Further, the striking body 7 may be of a mechanism capable of vertically reciprocating linear movement, and therefore the operating mechanism of the striking body 7 can be simplified, and an artificial snow-making device can be provided which is expected to reduce the cost of the device.

In addition, FIG. 5 shows another embodiment of the artificial snow-making device, and the device in FIG. 1 is an ultrasonic humidifier 3A.
The structure is the same as that of the apparatus shown in Fig. 1, except that an ice crystal generation nozzle 10 is provided which blows out the compressed air in pulses by a solenoid valve 11 which intermittently opens and closes the compressed air from the compressor 9. be.

[Brief explanation of the drawing]

Figures 1 and 2 are longitudinal cross-sectional views showing examples of the artificial snow-making device according to the present invention, Figure 3 is a partially enlarged sectional view, and Figures 4 a, b, and c show snow layers formed by blowing. FIG. 5 is a diagram showing a state in which it is peeled off, and FIG. 5 is a diagram showing another embodiment. In the diagram, 1... snow generation room, 2... snowfall room, 3...
2-fluid nozzle, 3A... Ultrasonic humidifier, 4... Cooler, 5... Air blower, 6... Capture body, 7... Elastic beating body, 8... Snow layer, 9... Compressor, 10... ...Air jet nozzle, 11... Solenoid valve, 12... Capture mounting body, 13... Support body.

Claims (1)

[Scope of utility model registration request] An ice crystal trapping body consisting of a cylindrical body with an upper or lower opening having flexibility and elastic restoring force that captures floating ice crystals and causes them to form a snow layer is provided in a low-temperature snow generation chamber with a temperature below freezing. This trapping body is provided with an elastic hitting body made of an aggregate of elastic fibers that moves back and forth in the vertical direction by hitting the snow layer that has grown with the snow layer by an elastic restoring action to peel it off from the trapping body in the form of snowflakes. An artificial snowfall device characterized by: