JPH02187640A - Split type circular wave making machine - Google Patents

Abstract

PURPOSE:To generate a complicated wave by dividing a wave making mechanism in the peripheral direction and allowing each mechanism to have a wave making function, and relating a period, amplitude and a phase of a wave of each wave making unit to each other by a control mechanism. CONSTITUTION:In a wave making machine 1, a wave making unit 2 placed in the peripheral direction is constituted of a plunger type unit. The unit 2 is constructed on the bottom face 3 of a pool, and a supporting member 5 is fixed to a foundation whose upper end is positioned above the water surface. To the supporting member 5, a motor 6 and a plunger driving rod 7 are attached, and to the lower end of the rod 7, a wave making plunger 8 is attached. When the motor 6 depresses the plunger 8, the inclined surface 9 of the plunger is pushed in the direction vertical to the advance direction and the advance direction of the plunger and a wave is made. By its repeated ascent and descent, a constant or irregular wave can be generated, by changing a generation timing between the wave making units, various waves can be made.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a circular wave maker for leisure pools installed in water parks and the like.

[Prior Art] In recent years, many leisure pools installed at water parks and the like have been equipped with wave generators to generate artificial waves, producing an effect similar to that of swimming in the sea. It can be seen. One such wave maker is a circular wave maker. This circular wave maker 31 is installed in the center of a circular pool 32 as shown in FIGS. The air chamber 34 is composed of an air chamber 34 that is divided into a plurality of parts, and a machine chamber 35 that houses a blower and the like for feeding air into the air chamber 34.

The wave-making mechanism of this circular wave-making machine 31 will be described in detail with reference to FIG. 6. Compressed air is sent to the air chamber 34 from a blower 36 installed in the machine room 35. Since the lower part 37 of the air chamber 34 is in communication with the circular boule 32, when compressed air is sent to the air chamber 34, the water level in the air chamber 34 is pushed down,
The water in the air chamber 34 is pushed out into the circular pool 32, creating waves. By adjusting the amount of compressed air sent to the air chamber 34, the height of the waves can be varied.

[Problem to be solved by the invention] However, although the air chamber of a conventional circular wave maker is divided into several rooms for convenience, waves are generated in each of these divided rooms. However, the timing of wave generation is the same for waves traveling in any direction in the pool, and the waves only spread concentrically around the circular wave maker, resulting in a monotonous wave. The problem was that it could only create waves.

This invention solves the problems of the prior art as described above,
The purpose is to provide a circular wave maker that can create waves with complex features.

[Means for Solving the Problems] A circular wave maker according to the present invention is a circular wave maker that generates waves radially, and each of the wave-making mechanisms divided in the circumferential direction has a wave-making function. It is a split type circular wave maker composed of a plurality of wave making units, and as an embodiment thereof, control is performed to control the period, amplitude and phase of waves generated by the wave making units in relation to each wave making unit. It is a split type circular wave maker with a device.

[Function] The split type circular wave maker of the present invention is a circular wave maker that generates waves radially, and the wave making mechanism is divided in the circumferential direction into a plurality of wave making units each having a wave making function. By installing a control mechanism that controls the period, amplitude, and phase of the waves generated by each wave-making unit in relation to each other, it is possible to generate waves with complex aspects. It can be generated in various ways.

[Embodiment] A split circular wave maker according to an embodiment of the present invention will be described with reference to FIGS. 1 and 2. Figure 1 shows the case where the wave making unit of the split type circular wave maker is a plunger type, Figure 1 (a) is a plan view of the split type circular wave maker, and Figure 1 (b) is the first Diagram (a)
FIG. This split type circular wave maker 1 includes a plurality of wave making units 2 arranged in the circumferential direction, each consisting of one set of wave making units. The wave-making unit 2 includes a plunger driving electric motor 6 disposed on a support member 5 that is constructed on the bottom surface 3 of the pool and fixed to a base body 4 whose upper end is located above the water surface of the pool, and It consists of a plunger drive rod 7 that is moved up and down by a drive electric motor 6 via a drive mechanism (details not shown), and a wave-making plunger 8 attached to the lower end of the plunger drive rod 7. Each wave making unit 2
When the wave-making plunger 8 is pushed down by the plunger driving electric motor 6, the inclined surface 9 of the wave-making plunger 8
Alternatively, waves are generated that push the water in front of the slope 9 in a direction perpendicular to and in the direction of travel of the wave-making plunger 8. These waves are generated by repeatedly raising and lowering the wave-making plunger 8. If the raising and lowering intervals are constant, synchronous waves are generated, but if the raising and lowering intervals are not constant, irregular waves are generated.
Moreover, by changing the wave generation timing between each wave generating unit, various waves can be generated.

Figure 2 shows the case where the wave making unit of the split type circular wave maker is a flap type, Figure 2 (a) is a plan view of the split type circular wave maker, and Figure 2 (b) is the It is a bb arrow view of (a). This split type circular wave maker 11 includes a plurality of wave making units 12 arranged in the circumferential direction, each of which is a flap type wave making unit. The wave-making unit 12 includes a flap drive cylinder 16 that is rotatable around a pin 15 that is constructed on the bottom surface 13 of the pool and is fixed to a base body 14 whose upper end is located above the water surface of the pool, and A flap drive rod 17 that moves back and forth, and a flap 20 whose upper end is rotatably connected to the tip of the flap drive rod 17 by a pin 18 and whose lower end is rotatably connected to a pin 19 provided on the bottom surface 13 of the pool. It is composed of. With this configuration, when the flap 20 is swung about the pin 19 by the flap drive cylinder 16 of each wave-making, yuk, and nirato 12, the water on the front surface of the flap 20 is moved to the flap 20.
Pushing waves are generated in a direction perpendicular to the direction and in a direction along the surface of the flap 20.

In this case as well, if the swinging interval of the flap 20 is made constant, synchronous waves will be generated, but if the swinging interval of the flap 20 is not made constant, irregular waves will be generated. Furthermore, by changing the wave generation timing in each wave making unit, it is possible to generate various waves.

Next, a control device and a control method for controlling the wave period, wave amplitude, and phase of each wave-making unit in association with each other will be described. Figure 3 shows the wave modes of each wave making unit 2 (12) when each wave making unit 2 (12>) of a split type circular wave maker is driven in association with each other. A calculation device 21 that calculates the calculated drive signal, a memory 22 that stores the results of calculations in the calculation device 21 as digital signals, and a control unit 2 that converts the digital signals in the memory 22 into analog signals.
FIG. 3 is an explanatory diagram of a wave-making unit drive control mechanism, in which a D/A converter 24 that sends signals to the wave-making unit 2 (12) and a wave-making unit 2 (12>) which is driven while being controlled in a fixed pattern by a control unit 23 are shown in association with each other. Since the wave-making unit drive control mechanism is configured as described above, the memory 2 of each wave-making unit 2 (12) is controlled by the D/A conversion start control.
When the digital drive signals stored in 2 are simultaneously converted into analog signals by the D/A converter 24 and the wave making units 2 (12) are driven via the control unit 24, all the wave making units 2 (12) will move in a mutually related manner, making it possible to create waves that exhibit a complex appearance as a whole. Figure 4 shows the wave generation situation when the phases of the waves of the adjacent wave making units 2 (12) of the split type circular wave maker 1 (11) are sequentially controlled to have the same phase difference. It is something that Since the positions of the wave crests 25 of the advancing waves are shifted by the same distance between adjacent wave making units 2 (12), when viewed as a whole, the waves appear to be advancing in a spiral shape.

In addition to what has been explained above, by combining the wave period, wave amplitude, and phase, and driving the entire wave-making unit in association with each wave-making unit, waves of various shapes can be generated. be able to.

[Effects of the Invention] According to the present invention, various waves having various aspects can be generated.

1... Divided circular wave maker, 2... Wave making unit, 6
...Plunger drive electric motor, 7.. Plunger drive rod, 8.. Wave-making plunger 11.. Separate circular wave maker, 12.. Wave-making unit, 16.. Flap. Drive cylinder, 17... Flap drive rod, 20... Flap, 21... Arithmetic device, 22.
・Memory, 23...Control unit, 24...D/
A converter, 25... wave crest.

[Brief explanation of the drawing]

FIG. 1(a) is a partial plan view of a split type circular wave maker according to an embodiment of the present invention, FIG. 1(b) is a view taken along arrow a-a in FIG. Figure (a) is a partial plan view of a split type circular wave maker according to another embodiment of the present invention, and Figure 2 (b) is b- of Figure 2<a).
Fig. 3 is an explanatory diagram of the drive control mechanism of the wave-making unit; Fig. 4 is an explanatory diagram showing the shape of the generated waves; Fig. 5 (a)
) is a plan view of a conventional circular wave maker, FIG. 5(b) is a side view of a conventional circular wave maker, and FIG. 6 is an explanation showing the wave generation mechanism of a conventional circular wave maker. It is a diagram.

Claims (2)

[Claims] (1) In a circular wave maker that generates waves radially, a divided circular type is characterized in that the wave making mechanism is divided in the circumferential direction and is composed of a plurality of wave making units each having a wave making function. Wave machine. (2) The split-type circular wave maker according to claim 1, further comprising a control device that controls the period, amplitude, and phase of the waves generated by the wave making units in relation to each other.