JP2023147194A - wave making device - Google Patents

Abstract

To provide a wave making device capable of creating an artificial wave in a simple configuration having a three-dimensional inclined surface with a difference of elevation similar to that of a natural wave.SOLUTION: A wave making device comprises a pool 1, an intermediate wall 2 and a projection part 3. The pool 1 has a first lateral surface 11a and a second lateral surface 11b opposite to each other in a depth direction, a third lateral surface 11c and a fourth lateral surface 11d opposite to each other in a width direction and a bottom part 12. The intermediate wall 2 extends from the first lateral surface 11a to the second lateral surface 11b and divides the pool into a water supply side area 1a and a drainage side area 1b, a water supply port 11s for releasing water to the second lateral surface 11b is provided at the water supply side area 1a, and a drainage port 11o is provided at the drainage side area 1b. The projection part 3 is provided at a bottom part 11b between an end 2a of the intermediate wall 2 and the second lateral surface 11b.SELECTED DRAWING: Figure 1

Description

The present invention relates to a wave-making device that generates artificial waves used for surfing (wave riding), particularly for practicing riding posture.

Conventionally, as this type of wave-making device, a jet flow generation section provided with a plurality of jet ports for ejecting a jet flow is arranged in a matrix at the bottom of a pool filled with water, and each jet flow generation section is There is a wave pool that is selectively operated by a jet flow control means to emit a jet flow to generate waves (see, for example, Patent Document 1).

Special Publication No. 06-078692

However, in Patent Document 1, mountain-shaped waves are generated by the water pressure of the jet flow on the water surface at positions corresponding to each jet flow generation part, and the user can simply slide on the curved surface of the wave. However, there was a problem in that it was not possible to create artificial waves with three-dimensional slopes with height differences similar to so-called natural waves, which are suitable for surfing.
Furthermore, in Patent Document 1, since it is necessary to arrange a large number of jet flow generating parts in a matrix over the entire bottom of the pool, there is a problem that the structure and control become complicated, making the entire device larger and higher in cost. there were.

In order to solve such problems, a wave-making device according to the present invention includes a pool, an inner wall, and a protrusion, and the pool has a first side surface and a second side surface facing each other in the depth direction, The inner wall has a third side surface and a fourth side surface facing each other in the width direction, and a bottom part, and the inner wall extends from the first side surface to the second side surface and divides the pool into a water supply side area and a drainage side area. The water supply side area has a water supply port that discharges water toward the second side surface, the drainage side area has a drain port, and the protrusion part is located on the middle wall. and the second side surface.

1(a) is a plan view before operation, and FIG. 1(b) is an explanatory diagram showing the overall configuration of a wave-making device according to an embodiment (first embodiment) of the present invention. FIG. (1B) - (1B) It is a longitudinal cross-sectional rear view during operation along line (1B). FIG. 3 is a perspective view showing the state of the wave-making device after operation. It is an explanatory view (perspective view after operation) showing a modification (second embodiment) of the wave-making device according to the embodiment of the present invention. FIG. 4 is an explanatory diagram showing a modified example (third embodiment) of the wave-making device according to the embodiment of the present invention, in which FIG. 4(a) is a plan view before operation, and FIG. 4(b) is a plan view of FIG. 4(a). (4B) - (4B) It is a longitudinal cross-sectional rear view during operation along line (4B). It is an explanatory view (perspective view after operation) showing a modification (fourth embodiment) of a wave making device concerning an embodiment of the present invention.

Hereinafter, embodiments of the present invention will be described in detail based on the drawings.
As shown in FIGS. 1 to 5, the wave-making device A according to the embodiment of the present invention generates artificial waves, which are similar to natural waves and have three-dimensional slopes with height differences, by injected water flow. Create. Users can now surf against the water current on this artificial wave with a three-dimensional slope inside the pool 1.
A wave-making device A according to an embodiment of the present invention includes a pool 1 in which water (pool water) is stored, and includes an inner wall 2 and a protrusion 3 as main components. Further, it is preferable that the wave-making device A includes a water passage 4 that flows through the pool 1, and a water supply and drainage pipe 5 and a water supply and drainage machine 6 that supply and drain water to and from the water passage 4.
In addition to this, the wave making device A can also provide an avoidance channel 7 in the pool 1 as shown in FIG.

(pool)
FIG. 1 is an explanatory diagram showing the overall configuration of a wave-making device A according to an embodiment (first embodiment) of the present invention, in which FIG. 1(a) is a plan view before operation, and FIG. 1(b) is a diagram. 1(a) is a longitudinal cross-sectional rear view taken along line (1B)-(1B) during operation; FIG.
The pool 1 is formed to be large enough for a user, a surfer, to float a surfboard on the pool water in an aquarium consisting of a side part 11 and a bottom part 12, and the fins of the surfboard do not come in contact with the pool water. It has a depth of a predetermined height. Surfing motions that can be performed with wave-making device A include paddling (movement performed to move on water), take-off (movement of standing up on a wave), riding (state of riding a wave), and the like. The wave-making device A generates artificial waves in order to enable these to be performed in series, especially for practicing riding posture.
As a constituent material of the pool 1, hard materials such as concrete and fiber reinforced plastic (FRP) are mainly used. As the constituent material of the pool 1, it is also possible to use other soft materials such as polyvinyl chloride resin sheets.
In addition, in the pool 1, the front and back depth direction when viewed from the front side is referred to as the "X direction", the left and right width direction perpendicular to this is hereinafter referred to as the "Y direction", and the vertical height direction is hereinafter referred to as the "Z direction". That's what it means.
In the case shown in FIGS. 1 to 4 as specific examples of the pool 1, the planar shape of the pool 1 is rectangular (a quadrilateral with right angle corners including a rectangle and a square). A preferable size of the pool 1 is such that the depth direction (X direction) of the tank is about 10 m or more, and the width direction (Y direction) of the tank is about 17.5 m or more. It is preferable that the dimensions of the second side surface 11b in the height direction (Z direction) in the tank are approximately 2.4 m on both sides of the pool 1 and diagonally set to approximately 1.4 m at the central portion.
Further, the shape and size of the pool 1 are not limited to those shown in the drawings, and can be changed to shapes and dimensions other than those shown in the drawings.

FIG. 2 is a perspective view showing the state of the wave-making device A after operation.
The side part 11 of the pool 1, which constitutes a part of the wave-making device A, has the following four main sides.
The first side surface 11a is a side surface on the near side that faces the depth direction (X direction) and extends substantially parallel to the width direction (Y direction).
The second side surface 11b is a back side surface.
The third side surface 11c and the fourth side surface 11d are a right side surface and a left side surface that face each other in the width direction and extend substantially parallel to the depth direction.
It is preferable that the first side surface 11a is provided with a water supply port 11s and a drain port 11o spaced apart from each other in the width direction. Although not adopted in the embodiment of FIG. 2, as will be described later, it is preferable that the back side of the pool 1 is provided with an avoidance channel 7, which will be described later, across the second side surface 11b.
The water supply port 11s is disposed on the first side surface 11a or the bottom 12 of the pool 1 so as to open in the depth direction (X direction), and is connected to a water supply/drainage device 6, which will be described later, to supply water from the bottom side of the pool 1 to the water surface W. It is set to discharge pool water such as water and hot water diagonally upward toward the target. It is preferable that the pool water discharged from the water supply port 11s is a laminar flow along the bottom 12 of the pool 1.
The drain port 11o is arranged on the first side surface 11a, fourth side surface 11d, etc. of the pool 1 so as to be downstream in the water flow direction from the turning section 11t and the protruding section 3, which will be described later, and is connected to the water supply and drainage machine 6, which will be described later. The pool water is discharged from the inside of the pool 1 to the outside of the pool 1.

(scaffold)
The wave-making device A in FIG. 2 includes a scaffold 81. As shown, the scaffold 81 is at the same height as the pool 1. The wave-making device A in FIG. 2 is provided with stairs leading to a scaffold 81.

(Position of water inlet)
The position of the water supply port 11s is preferably below the water surface. Further, when the bottom portion 12 has an inclination, it is preferable that the bottom portion 12 faces in the direction along the inclination. The water flow coming out of the water supply port 11s flows smoothly along the slope of the bottom part 12. The direction and position of the water supply port 11s may be configured to be changeable, or the water supply port 11s may be provided in a plurality of positions in advance so that one position or direction of the water supply port 11s can be selected. Furthermore, the water supply port 11s may be configured so that a plurality of them can be used at the same time. Selection of the water supply port 11s can be realized by appropriately switching the water supply port 11s using a valve (not shown) or the like.

(Position of drain outlet)
Although the position of the drain port 11о is arbitrary, it can be used to determine the water level in the drain side area 1b. Moreover, the drain port 11о can also be installed on the fourth side surface 11d or the bottom 12 of the drain side area 1b, as long as it does not affect the shape of the waves.

(direction change part)
A direction changing portion 11t that changes the direction of the water flow is formed in the extension direction of the pool water diagonally discharged from the water supply port 11s on the second side surface 11b.
The direction changing portion 11t is arranged to face the water supply port 11s in the depth direction (X direction). The turning portion 11t is an abutment surface that changes the direction of the water flow so that it bends only in one direction in the width direction (Y direction) when the pool water discharged obliquely upward from the water supply port 11s collides with it. The water flow diverted when it hits the direction changing portion 11t becomes a forward flow 4f that flows (flows down) along the second side surface 11b. This forward flow 4f mainly flows on the water surface W side, but at the same time, on the water bottom side of the pool 1, a water flow (reverse flow) 4b in the opposite direction to the forward flow 4f is generated along with the forward flow 4f on the water surface W side.
For this reason, it is preferable that the direction changing part 11t is arranged near the corner of the pool 1 formed by the second side surface 11b and the third side surface 11c, and changes the direction of the water flow only in one direction in the width direction (Y direction). . Note that the direction changing portion 11t refers to a portion that is hit by a water flow whose position is determined by the direction of the water flow sent from the water supply port 11s and the position of the water supply port 11s, as well as the direction of the water flow generated by the structural shape of the bottom portion 12. . The direction changing portion 11t does not have a structural shape as an object like the protruding portion 3.
Further, the diversion section 11t controls the water discharge direction so that pool water is discharged diagonally in the width direction (Y direction) from the water supply port 11s disposed on the third side surface 11c with respect to the diversion section 11t. In this case, the direction change portion 11t may not be arranged near the corner of the pool 1.

(bottom slope)
As shown in FIG. 2, the bottom 12 of the pool 1 is preferably sloped at least in part or in its entirety.
To explain in detail, the bottom portion 12 of the pool 1 has the deepest portion 12a formed at an intermediate position in the depth direction (X direction). The bottom portion 12 has a downward slope 12b formed in a region extending from the first side surface 11a to the deepest portion 12a. The bottom portion 12 has an upward slope 12c formed in a region extending from the deepest portion 12a to the second side surface 11b.
It is preferable that the bottom portion 12 has at least a downward slope 12b, a deepest portion 12a, and an upward slope 12c.
The downward slope 12b and the upward slope 12c are set to be inclined at a predetermined angle (approximately 10 to 25 degrees) with respect to the horizontal plane.
That is, in the bottom part 12 of the pool 1, the portion from the first side surface 11a to the second side surface 11b is formed so that the cross-sectional shape of the downward slope 12b and the upward slope 12c with the deepest part 12a in between is approximately V-shaped.
In particular, when the water supply port 11s is arranged on the first side surface 11a of the pool 1, the pool water (laminar flow) discharged from the water supply port 11s flows along the downward slope 12b, the deepest part 12a and the upward slope 12c. It flows and collides with the direction changing portion 11t of the second side surface 11b to change its direction.

The bottom 12, which is made watertight, may be provided with a plate on the bottom 12 for changing the slope. By changing the angle of the plate, the angles and positions of the downward slope 12b and the upward slope 12c can be freely changed. The angle and position of the plate may be configured to be mechanically adjustable.

(middle wall)
The inner wall 2 extends continuously from the first side surface 11a, which is one side in the depth direction (X direction), toward the second side surface 11b inside the pool 1, and is provided so as to be higher than the water surface W from the bottom part 12. . A protrusion 3 is arranged at the bottom 12 of the pool 1 between the end 2a of the inner wall 2 and the second side surface 11b.
Inside the pool 1, by arranging the inner wall 2 and the protrusion 3 at an intermediate position in the width direction (Y direction) of the pool 1, a water supply side area 1a where the water supply port 11s is provided and a drain port 11o are provided. It is divided into a drainage side area 1b. Furthermore, it is preferable that the upper end of the second side surface 11b in at least the drainage side region 1b is lower than the upper end of the second side surface 11b in the water supply side region 1a.
Moreover, since the top surface 2b of the inner wall 2 is higher than the water surface W, it can be used as an entry zone P1 for users (surfers). In order to facilitate surf entry into the water (surf entry) for surfers, it is preferable to install elevating equipment 2d such as stairs or a ladder on the side surface 2c facing the drainage side area 1b in the inner wall 2.

(protrusion)
The protruding part 3 is disposed on the downstream side of the water flow than the direction changing part 11t, and so that its top end is always submerged in the pool 1.
The protrusion 3 is installed in an area (uphill slope 12c) adjacent to the second side surface 11b at the bottom 12 of the pool 1, and is sandwiched between the inner wall 2 and the second side surface 11b, which will be described in detail later. It is preferable to do so.
Furthermore, the protrusion 3 has an inclined surface 3a that slopes downward from its top end. The inclination angle of the inclined surface 3a is set to be inclined at a predetermined angle (approximately 40 to 60 degrees) with respect to the horizontal plane or the upward slope 12c. As a result, the inclined surface 3a of the protrusion 3 guides at least a portion of the water flow 4b (backflow) in the opposite direction to the forward flow 4f generated on the water bottom side with the aforementioned forward flow 4f toward the bottom 12 of the pool 1. , it is configured to be reversed at the bottom 12 and flow toward the water surface W.
Furthermore, there are two methods for installing the protrusion 3 on the bottom 12 of the pool 1: an integral fixed type in which it is immovably fixed, and a removable type in which it is detachably attached. In the case of a removable type, the mounting position of the protruding part 3 with respect to the bottom 12 of the pool 1 can be adjusted, and multiple types of protruding parts 3 of different sizes are prepared to meet the needs of users (surfers). It is also possible to change the size and shape of the protrusions 3 so that the waves are created.
The wave-making device A may be equipped with a device that automatically replaces the protrusion 3.

Although the flow of water has been described in detail using the embodiment of FIG. 2, the water flow changes depending on the structural shape of the protrusion 3. The water flow in FIG. 2 is merely an example. Furthermore, the reason why the protruding portion 3 is symmetrical with respect to the apex is that, as will be described later, an authorized person (the person in charge of operating the wave making device A) reverses the water flow generated by the water supply and drainage device 6. , Goofy waves (left waves that collapse to the right) and regular waves (right waves that collapse to the left) can be generated selectively. Therefore, it is the upstream shape structure of the sloped surface 3a of the protrusion 3 that greatly influences the formation of waves. The structural shape of the protruding portion 3 can be dedicated to either goofy waves or regular waves. In that case, the protrusion 3 is not symmetrical with respect to the apex.

(water flow)
The water supply channel 4 is a flow channel that connects from the water supply port 11s to the drain port 11o via the diversion section 11t, and its planar shape is bent into a substantially C-shape (U-shape) or a substantially L-shape. The pool water discharged from the pool water 11s hits the direction changing portion 11t and flows toward the protruding portion 3.
On the downstream side of the diversion section 11t and upstream of the protrusion section 3 in the passageway 4, there is a water flow (forward flow) 4f whose direction has been changed at the diversion section 11t, the slope 3a of the protrusion section 3, and the pool 1. The water flow (reverse flow) 4b along the bottom part 12 of the pipe is combined with the water flow (reverse flow) 4b.
In the confluence section 4m, a forward flow 4f is diverted at the end of the direction against the direction change section 11t and flows mainly on the water surface W side along the second side surface 11b, and an inclined surface of the protrusion 3 generated on the water bottom side due to the forward flow 4f. 3a and the countercurrent 4b flowing toward the water surface W along the bottom 12 of the pool 1 collide with each other. This causes a backwash in which waves partially rise from the water surface W. Due to the backwash generated by the collision between the forward flow 4f and the reverse flow 4b, the forward flow 4f along the side part 11 (second side surface 11b) of the pool 1 becomes an artificial wave with a three-dimensional slope with a height difference similar to a natural wave. change. These artificial waves, which have three-dimensional slopes with height differences similar to natural waves, include various types of waves, such as tube-shaped curling waves in which the wave crests from the collapse area to the area immediately before collapse are connected.

(Water supply and drainage)
The water supply and drainage pipe 5 is a conduit that connects the water supply port 11s and the drainage port 11o to the outside of the pool 1.The water supply and drainage pipe 5 is provided with a water supply and drainage device 6, and is connected to a water pipe, a drainage pipe, etc. via an on-off valve 51. The water supply and drainage source 52 is connected to the water supply and drainage source 52.
The water supply and drainage machine 6 is composed of a turbo pump and other pumps, and when the water supply and drainage machine 6 operates, the pool water drained from the drain port 11o is supplied to the water supply port 11s, thereby circulating the pool water. In the illustrated example, one is installed in the middle of the water supply and drainage pipe 5. In addition, although not shown, it is also possible to install a plurality of them so as to connect to the water supply port 11s and the drain port 11o, respectively. Pool water is not limited to low-temperature water such as tap water, underground water, or seawater, but also includes hot water such as hot spring water or boiling water, and can also be used to protect users (surfers) from the cold in winter.

The water supply and drainage machine 6 can adjust the discharge pressure of water discharged from the water supply port 11s and the drainage capacity from the drain port 11o by controlling its operation. When the discharge pressure from the water supply port 11s is increased by controlling the water supply/drainage device 6, the water flow that hits the deflection section 11t becomes stronger, the backwash becomes larger, and the artificial wave with the three-dimensional slope becomes larger ( As the height increases, the power of the artificial wave with its three-dimensional slope also becomes stronger. Conversely, if the discharge pressure from the water supply port 11s is reduced by controlling the water supply/drainage device 6, a hollow artificial wave (a wave with a digging speed with a difference in height) will be changed to a mellow fan wave (a wave with a slow coming speed). waves without waves). By changing the release pressure, it is possible to create artificial waves with various three-dimensional slopes suitable for beginners to expert surfers.

In other words, the size of the artificial wave having a three-dimensional slope can be changed by adjusting the amount of water discharged from the water supply and drainage machine 6. The type of artificial wave with a three-dimensional slope can be adjusted by the size and shape of the protrusion 3, and the wave making device A of the present invention generates artificial waves that suit the level and preference of surfers from beginners to advanced surfers. becomes possible.
Moreover, the water supply and drainage machine 6 can control the operating direction of water supply and drainage in the opposite direction, for example, by rotating an impeller (not shown) in the opposite direction. By controlling the water supply and drainage from the water supply and drainage machine 6 in the opposite directions to the water supply port 11s and the drain port 11о, it is also possible to switch the water supply port 11s and the drain port 11о and circulate in the opposite direction. That is, the water supply and drainage machine 6 is controlled so that the flow of water can be changed in the forward and reverse directions by selective operation.

(Flow of pool water)
When the on-off valve 51 is closed and used, the pool water flowing through the water supply/drainage pipe 5 is sucked in from the drain port 11o and directly flows out from the water supply port 11s. There is no increase or decrease in the water level of Pool 1. Further, in this embodiment, the efficiency of the water supply and drainage machine 6 can be improved because the pool water that has been sucked in is directly jetted from the water supply port 11s. Moreover, the position of the drain port 11о is excellent in terms of design because it can be located underwater. However, since the pool water is forcefully sucked in from the drain port 11о, there is a risk that people or objects may be drawn into the drain port 11о. It is preferable that safety measures be taken, such as surrounding the drain 11о with a frame.
When the on-off valve 51 is opened, water flows in from the water supply and drainage source 52 (water supply/water storage tank T), and the water level of the pool 1 can be changed.

(Number of water supply and drainage machines)
By installing two water supply and drainage machines 6, water supply and drainage in both directions is possible.

(Folding/disassembly of pool)
The wave-making device A according to the embodiment of the present invention can also be constructed so that at least the pool 1 can be folded or disassembled, and can be assembled by a simple operation.
As a specific example where at least the pool 1 has a foldable structure, the pool 1 is formed into a deformable hollow shape using a reinforced sheet made of polyvinyl chloride or the like. The pool 1 is movable in a folded state without being filled with gas such as air, and the assembly work is completed by filling the folded pool 1 with gas at the installation site.
As a specific example where at least the pool 1 has a structure that can be disassembled, the pool 1 is composed of a base (not shown) that can be freely separated into multiple parts, and a waterproof sheet (not shown) that covers the surface of the base. It can be moved freely with the waterproof sheet separated. The assembly work is then completed by assembling the separate bases and laying down a waterproof sheet at the installation site.
After the pool 1 is assembled, it is possible to connect the water supply and drainage pipes 5, water supply and drainage machine 6, etc. of the wave-making device A, and to connect it to a water tank or the like as necessary.

Moreover, the pool 1 is divided into a plurality of self-supporting blocks, and after assembling the blocks to create the exoskeleton of the pool 1, a waterproof sheet may be laid on the inner surface of the pool 1. Each block is a water storage tank T, and by filling it with water, it is possible to prevent it from moving even if it is hit by a stream of water.
Each block can be easily relocated by draining the water stored inside. Moreover, it is a preferable aspect to prepare a block that changes the shape and inclination of the downward slope 12b, the deepest part 12a, and the upward slope 12c of the bottom part 12. The shape of the wave changes as the block sinks.

Next, a specific example (first embodiment) and modified examples (second embodiment, third embodiment, fourth embodiment) of the wave-making device A according to the embodiment of the present invention will be described.

[First embodiment]
In the wave making device A1 of the first embodiment shown in FIGS. 1(a), (b) and 2, the internal structure of the pool 1 is arranged symmetrically (line symmetrically) in the width direction (Y direction). . With this arrangement, the wave making device A1 can selectively create goofy waves (left waves that collapse to the right) and regular waves (right waves that collapse to the left).
The protruding part 3 and the middle wall 2 are arranged at the center position in the width direction (Y direction) in the pool 1, and the center line of the protruding part 3 and the middle wall 2 is a line symmetrical position in the width direction (Y direction) with the center line being the center line. A water supply port 11s and a drain port 11o are respectively arranged. The protruding part 3 has a pair of inclined surfaces 3a that slope downwardly on both sides in the width direction (Y direction) with the top end thereof sandwiched therebetween, and the cross-sectional shape of the protruding part 3 is formed into a trapezoid, a triangle, or the like.
Thereby, the water passage 4 is formed into a substantially C-shape (U-shape) in plan along the outer surface (the end portion 2a and both side surfaces 2c) of the inner wall 2. Elevating equipment 2d such as a ladder is installed on both sides 2c of the inner wall 2, respectively.
In the bottom part 12 of the illustrated pool 1, the deepest part 12a is arranged at the center in the depth direction (X direction), and the entire bottom part 12 has a downward slope 12b, a deepest part 12a, and an upward slope 12c, each of which has a V-shaped cross-section. ing.

(shape of water inlet and drain outlet)
Further, in the illustrated example, the water supply port 11s and the drain port 11o are formed into a horizontally long rectangle or an ellipse. The shape of the water supply port 11s can be changed depending on the desired wave shape and the like. Further, the water supply port 11s may be located anywhere on the first side surface 11a, as long as it is in the water supply side region 1a, or may be located on the bottom 12, etc., which is different from the first side surface 11a.
There are no particular restrictions on the shape of the drain port 11о.
However, in some cases, the water supply and drainage machine 6 is used to change the water supply direction and reverse the positions of the water supply side area 1a and the drainage side area 1b, so in the pool 1 with a symmetrical structure, the drain port 11о is the same as the water supply port 11s. It is preferable that they be installed in the same number, in the same shape, and in the same positional relationship.

(riding area)
Water is stored in the pool 1 having such a symmetrical structure. Then, as shown in FIG. 2, when water is discharged from the water supply port 11s due to the circulation in the forward direction, the water flow collides with the direction changing portion 11t and changes direction. The forward flow 4f along the side 11 of the pool 1 and the backward flow 4b flowing along the slope 3a of the protrusion 3 and the bottom 12 of the pool 1 collide with the forward flow 4f at the confluence section 4m, creating backwash. generate. The generated backwash creates goofy waves as artificial waves with three-dimensional slopes with height differences similar to natural waves.
In the activated state shown in FIG. 3, a user (surfer) can enter the drainage side area 1b from the top surface 2b (entry zone P1) of the inner wall 2. The entry position is the drainage side area 1b of the artificial wave (Goofy's wave) with a three-dimensional slope, which becomes the surfer's paddling area P2. In an artificial wave having a three-dimensional slope, the area directly above the protrusion 3 becomes the surfer's take-off area P3, and the area on the water supply side becomes the surfer's riding area P4.
Furthermore, although not shown, when the water supply and drainage device 6 is selectively switched, the water supply and drainage ports 11s and drainage ports 11o are exchanged and the water supply and drainage circulates in the opposite direction, causing a change in the direction of the water flow that hits the deflection portion 11t and the occurrence of backwash. All directions are reversed to the width direction (Y direction). Therefore, regular waves are created instead of Goofy waves.

[Second embodiment]
(avoidance waterway)
FIG. 3 is an explanatory diagram (a perspective view after operation) showing a modification (second embodiment) of the wave-making device A1 according to the embodiment of the present invention.
The wave-making device A2 of the second embodiment shown in FIG. 3 differs from the first embodiment described above in that the avoidance channel 7 is added to the pool 1, and the other structure is the same as the first embodiment. It is.
A partition wall 11e corresponding to the second side surface 11b of the first embodiment is arranged on the back side of the pool 1, and an avoidance water channel 7 is provided across the partition wall 11e.
Although the partition wall 11e is formed with the deflection portion 11t in the same way as the second side surface 11b of the first embodiment, the top portion 11e' of the partition wall 11e is arranged lower than the height of the second side surface 11b, so that the partition wall 11e is submerged in water in a timely manner. It is formed like this. The top portion 11e' of the partition wall 11e has a structure such that the corners of the top portion 11e' are chamfered to prevent injury even if a user (surfer) comes into contact with it. As a result, when the top portion 11e' of the partition wall 11e is submerged in water, the surfboard can be moved from the water passageway 4 to the avoidance waterway 7 over the top portion 11e' of the partition wall 11e.

Submergence of the top part 11e' of the partition wall 11e is achieved by arranging the top part 11e' of the partition wall 11e lower than the top of the artificial wave having a three-dimensional slope (the upper part of the broken wave) and the water surface W. be done. Further, the discharge pressure from the water supply port 11s is set so that the top of the artificial wave having a three-dimensional slope is higher than the top 11e' of the partition wall 11e, and from the top of the artificial wave to the top 11e' of the partition wall 11e. are spaced so that the surfboard's fins can pass through without touching each other. As described above, there are several ways to submerge the top portion 11e' of the partition wall 11e, and this can be done by designing the height of the top portion 11e' of the partition wall 11e to be low in advance, or by adjusting the water discharge pressure.
The avoidance waterway 7 is set to have a depth of approximately 1.5 m from the water surface W, and serves as an escape area P5 used by users (surfers) when exiting the waterway 4 after riding. It is preferable to form an outlet 8 higher than the water surface W near the avoidance waterway 7.
In the illustrated example, the avoidance waterway 7 is formed linearly in the width direction (Y direction) along the inner side of the pool 1, and the outlet 8 is located outside the pool 1 at an intermediate position in the width direction (Y direction). It is located in Further, although other examples are not shown, it is also possible to divide the avoidance waterway 7 by providing the outlet 8 at the center of the avoidance waterway 7 in the width direction (Y direction).
In the avoidance channel 7, the surfer rides close to the top of the artificial wave (goofy wave or regular wave) with a three-dimensional slope, then changes the direction of the surfboard and climbs from the channel 4 to the top 11e' of the bulkhead 11e. Go over the top and enter avoidance channel 7. Surfers can finish their ride smartly by sinking the tail of the surfboard to stall it, then grabbing the tip of the surfboard with their hands and pulling out (the action of finishing surfing).

(Water storage tank)
The water storage tank T is provided at an appropriate position. The water storage tank T may be provided apart from the pool 1 as long as it is connected by piping or the like.
Further, the water storage tank T is not always necessary.
The wave making device A2 of the second embodiment illustrated in FIG. 3 is provided with a water storage tank T so as to isolate the water supply and drainage pipe 5 and the water supply and drainage machine 6 from the outside. The water storage tank T is provided adjacent to the first side surface 11a. Preferably, the upper surface of the water storage tank T can be used as a scaffold 81.

Since the water supply/drainage machine 6 is submerged in the water storage tank T, the switch for the water supply/drainage machine 6 is installed in an appropriate position outside the water storage tank T by wireless or wire, so that only authorized persons can operate it. ing. Moreover, the water supply and drainage machine 6 is always cooled with water in the water storage tank T. When using the wave making device A2 of the second embodiment at a beach in midsummer, there is a possibility that the water supply and drainage device 6 gets hot, but it can be cooled by the water stored in the water storage tank T, and heating can be prevented.
The wave-making device A2 illustrated in FIG. 1(a) is made so that it can be used to circulate water. As mentioned above, the water supply and drainage source 52 may be a water pipe or the like, but if there is a water storage tank T, the water storage tank T itself becomes the water supply and drainage source 52. A pipe opened at the bottom of the water storage tank T serving as a water supply and drainage source 52 is connected to a water supply and drainage pipe 5 and a water supply and drainage machine 6 via an on-off valve 51 . An authorized person can operate the on-off valve 51 and change the water level of the pool 1.

[Third embodiment]
(Shape of water inlet)
In the wave-making device A3 of the third embodiment shown in FIGS. 4(a) and 4(b), the sizes of the inner wall 2 and the protruding portion 3 are larger than those of the previous embodiments. The configuration in which the shapes of the water supply port 11s and the drain port 11о are changed differs from the first embodiment and the second embodiment described above, and the other configurations are the same as the first embodiment and the second embodiment. be.
In the illustrated example, the width direction (Y direction) dimension of the inner wall 2 and the protrusion 3 in the third embodiment is approximately 3.5 to 4.0 times larger than the width direction dimension of the protrusion 3 in the first embodiment. has been done. The height dimension (Z direction) of the protrusion 3 in the third embodiment is approximately 1.3 to 1.5 times larger than the height dimension of the protrusion 3 in the first embodiment. The shape of the water supply port 11s and the drain port 11o is formed into a rectangular shape in which the width direction (Y direction) is longer than the height direction (Z direction).
As a result, the wave-making device A3 of the third embodiment has become a device that can stably create artificial waves that are close to natural waves and have three-dimensional slopes with height differences.
Moreover, in the wave-making device A3 of the third embodiment, a filter 53 is provided in the middle of the water supply and drainage pipe 5. The illustrated example is an example in which a filter 53 is disposed between the water supply port 11s and the drain port 11o, with a circulating water supply pump serving as the water supply/drainage device 6 interposed therebetween.

According to the wave making device A3 according to the third embodiment of the present invention, water is discharged from the water supply port 11s by the operation of the water supply/drainage device 6 to the pool 1 where water (pool water) has accumulated. Then, the created water flow collides with the direction changing portion 11t of the pool 1 and is changed direction. Then, the direction-changed water flow becomes a forward flow 4f along the side 11 (second side surface 11b) of the pool 1. The forward flow 4f mainly flows on the water surface W side, but a water flow (reverse flow) 4b in the opposite direction to the forward flow 4f occurs on the water bottom side. The backflow 4b flows toward the water surface W along (the inclined surface 3a of) the protrusion 3 and the bottom 12 of the pool 1. The backward flow 4b collides with the forward flow 4f at the confluence section 4m, and as a result, raised waves (backwash) are generated. As a result, an artificial wave having a three-dimensional slope is created in the water passageway 4 along the side part 11 (second side surface 11b) of the pool 1. Thereafter, these water streams are drained to the drain port 11о, and then circulated to the water supply port 11s by the operation of the water supply/drainage device 6, thereby maintaining the shape of the artificial wave having the three-dimensional slope.
Therefore, the wave-making device A3 of the third embodiment can create artificial waves that are similar to natural waves and have three-dimensional slopes with height differences with a simple structure.
As a result, compared to the conventional device in which a large number of jet flow generators are arranged in a matrix over the entire bottom of the pool, the wave-making device A3 of the third embodiment can simplify its structure and control, making the entire device compact. It can be installed anywhere without being affected by the surrounding environment, and costs can be reduced.
Furthermore, the water supply and drainage machine 6 can adjust the discharge pressure from the water supply port 11s. Those with authority can adjust the size (height) and power of the waves in any way they like by adjusting the water pressure.
A person authorized to use the wave-making device A3 of the third embodiment can create waves suitable for surfers ranging from beginners to advanced surfers according to their skill.

In particular, it is preferable that the water supply port 11s and the direction changing part 11t be arranged at positions facing each other in the depth direction (X direction) in the side part 11 (second side surface 11b) of the pool 1. In addition, at least a part or all of the bottom 12 of the pool 1 has a downward slope 12b in the area from the water supply port 11s to the deepest part 12a, and has an upward slope 12c in the area from the deepest part 12a to the turning part 11t. It is preferable.
In this case, by discharging water from the water supply port 11s along the downhill slope 12b, the deepest part 12a, and the uphill slope 12c, the water flows vigorously down the downhill slope 12b, and then flows along the uphill slope 12c to the water surface W. Flows diagonally. Therefore, the water flow from the water supply port 11s violently collides with the direction changing part 11t and is changed direction, flows as a forward flow 4f along the side part 11 of the pool 1, collides with the reverse flow 4b at the confluence part 4m, and backs up. Wash occurs. Thereby, an artificial wave having a three-dimensional slope along the side part 11 (second side surface 11b) of the pool 1 is created.
Therefore, the wave-making device A3 of the third embodiment does not require strict control over the water supply direction and water supply amount from the water supply port 11s, and reliably creates artificial waves with a three-dimensional slope with a simple structure. be able to.

(Water storage tank of third embodiment)
It is envisaged that the wave making device A of the present invention will also be used for outdoor events. Although the wave making device A2 of the second embodiment is assumed to be used as the water supply and drainage source 52 (such as water supply), water supply etc. may not always be nearby depending on the outdoor event venue. As shown in FIG. 4(a), the wave making device A3 of the third embodiment is provided with a water supply and drainage source 52 even though water is stored in the water storage tank T. This is because the wave-making device A3 of the third embodiment assumes a water tanker as the water supply and drainage source 52. The water pipe extending from the water tank can be connected to a joint provided in the water supply and drainage source 52 of the wave making device A3. The water sent from the water truck is used to fill the water tank T and pool 1. Thereafter, the on-off valve 51 is closed, and the water tanker moves away from the wave-making device A3. The wave-making device A3 of the third embodiment can be used for a long period of time without being resupplied with pool water stored in the water storage tank T.

(Another role of water storage tank T)
In the wave-making device A of the present invention, pool water is vigorously blown out from the water supply port 11s by the water supply and drainage device 6. The members of the wave-making device A, especially the water supply and drainage device 6, need to be fixed so that they do not move. The water storage tank T serves as a weight by storing pool water. The water storage tank T is provided adjacent to the first side surface 11a where the water supply port 11s is located, and the entire wave making device A including the water supply and drainage device 6 is stabilized by the weight of the water storage tank T.

Furthermore, in the examples shown in FIGS. 1A and 2B, an inner wall 2 is provided at the center of the pool 1 in the width direction (Y direction). In this example, the protruding part 3 is arranged between the inner wall 2 and the side part 11 (second side surface 11b) of the pool 1, and the inner wall 2 and the protruding part 3 are arranged in the width direction (Y direction) as the center line. ) is an example in which the water supply port 11s and the drain port 11o are arranged at line-symmetrical positions. The water supply/drainage machine 6 is capable of supplying/draining water by switching the direction of water supply/drainage to the water supply port 11s and the drain port 11o. This allows switching in the forward or reverse direction.
The waves created by the wave making device A1 of the first embodiment are discharged from the water supply port 11s by the forward operation of the water supply/drainage device 6, so that they collide with the deflection portion 11t and are changed direction, and the waves are changed direction. The forward flow 4f along the side portion 11 and the reverse flow 4b flowing along the protrusion 3 and the bottom 12 of the pool 1 on the water bottom side collide at the confluence portion 4m to generate backwash, resulting in goofy waves.
Furthermore, when an authorized person changes the operation of the water supply/drainage device 6 in the opposite direction, the water supply port 11s and the drain port 11o are swapped, resulting in a regular wave.
Therefore, the wave making device A of the present invention can create goofy waves and regular waves only by controlling the operating direction of the water supply and drainage machine 6.
As a result, users can select artificial waves that have two three-dimensional slopes with different collapse directions in one pool 1. The present invention is highly convenient as surfing practices can be practiced in the same place according to the needs of the user (surfer), and there is no need to create separate pools for goofy waves and regular waves. Therefore, it is advantageous in terms of installation space and installation cost.

In the example shown in FIG. 3, the pool 1 includes a partition wall 11e in which a deflection portion 11t is formed as a second side surface 11b, and an avoidance water channel 7 provided on the opposite side of the water passageway 4 across the partition wall 11e. The top portion 11e' of the partition wall 11e is formed to be submerged in water.
The wave-making device A2 of the second embodiment allows a surfer while riding to change the orientation of the surfboard and pull it out from the water passageway 4 over the top 11e' of the bulkhead 11e and into the avoidance waterway 7. do.
Therefore, the user (surfer) can finish riding smartly.
As a result, a surfer using the present invention can practice a series from entry to pull-out, and the next surfer waiting can smoothly take over.

The pool 1 is preferably configured to be foldable or disassembleable.
The pool 1 is transported to the installation site in a compact folded or disassembled state. The pool 1 can be assembled from folded or disassembled members at the installation site. In this way, the installer can easily assemble and install the pool 1.
Therefore, the pool 1 can be easily relocated without being affected by the environment at the installation site.
Increased convenience is provided to the installer, such as time-limited operation.

In addition, in the illustrated examples of the first embodiment and the third embodiment described above, the internal structure of the pool 1 is arranged line-symmetrically in the width direction (Y direction). The arrangement is not limited to this, and may be arranged asymmetrically in the width direction.
Furthermore, in the drawings, the water supply port 11s is arranged on the first side surface 11a of the pool 1, but the invention is not limited thereto. These arrangements include discharging water diagonally from the water supply port 11s arranged on the third side surface 11c toward the diversion section 11t, and discharging water diagonally from the water supply port 11s disposed on the bottom 12 of the pool 1 toward the diversion section 11t. It is possible to make changes such as releasing water diagonally upward. Although the drain port 11о in the embodiment is arranged on the first side surface 11a of the pool 1, the drain port 11о is not limited to this, but the drain port 11о may be arranged on the fourth side surface 11d so that the water passage 4 is formed into an L-shape in plan view. or other changes may be made.
Further, the shape of the bottom 12 in the embodiment is such that the downward slope 12b and the upward slope 12c are formed in a substantially V-shape in cross section with the deepest part 12a in between, but the shape is not limited to this. Only a portion from 11s to the direction changing portion 11t may be formed to have a substantially V-shaped cross section. When water is discharged obliquely upward from the water supply port 11s arranged at the bottom 12 of the pool 1 toward the diversion section 11t, the bottom 12 does not need to be provided with a slope partially or entirely. .
Even in these cases, the same effects and advantages as in the first and second embodiments described above can be obtained.

[Fourth embodiment]
(water supply and drainage machine, water supply and drainage pipes, and water storage tank)
FIG. 5 is an explanatory diagram (a perspective view after operation) showing a modification (fourth embodiment) of the wave-making device A4 according to the embodiment of the present invention. Compared to the embodiment shown in FIG. 3, the water supply and drainage pipe 5 is not provided. Instead, the water supply port 11s is connected to a submersible pump 61, which is a type of water supply and drainage device 6. The submersible pump 61 is submerged in the bottom of the water storage tank T, sucks up pool water, and injects the pool water from the water supply port 11s.
On the other hand, the drain port 11о only communicates with the water storage tank T. The position of the drain port 11о determines the position of the water surface W of the pool 1, that is, the water level.
The water level WT of the water storage tank is at the same level as or lower than the water level W of the pool 1, and the pool water flows into the water storage tank T so as to overflow from the drain port 11о.
The submersible pump 61 can also be connected to the drain port 11о, and by connecting the submersible pump 61, the drain port 11о turns into a water supply port 11s. Further, the two submersible pumps 61 are connected to the drain port 11o and the water supply port 11s, respectively, so that an authorized person can operate only one of the submersible pumps 61. Thereby, the wave generator A4 can generate either goofy or regular waves.
Since the water surface W position of the drain side area 1b in the fourth embodiment is always at the lower end of the drain port 11о, the amount of pool water can be appropriately managed.

(Consideration for safety)
It is possible to attach soft cushioning material to corners of the pool 1, such as its edges. If a user falls off the board, the cushioning material protects the user. Further, as described above, when pool water is forcefully sucked in from the drain port 11о, it is preferable to take safety measures such as a frame to prevent objects and people from being sucked in.
Further, to prevent beginners from losing their balance and falling from the pool 1, a fall protection fence such as a net may be provided around the pool.

Although the embodiments of the present invention have been described above in detail with reference to the drawings, the specific configuration is not limited to these embodiments, and the design may be modified without departing from the gist of the present invention. Even if there are changes, they are included in the present invention.
In addition, each of the above-described embodiments can be combined by utilizing each other's technologies unless there is a particular contradiction or problem in the purpose, structure, etc.

A wave making device 1 pool A1 wave making device (first embodiment)
A2 Wave making device (second embodiment)
A3 Wave-making device (third embodiment)
A4 Wave-making device (fourth embodiment)
1a Water supply side area
1b Drainage side area 11 Side part
11a First side 11b Second side
11c Third side 11d Fourth side
11e Partition wall 11e' Top part
11t Direction changing part 11s Water supply port
11о Drain port 12 Bottom
2 Middle wall 2a End part
3 Projection 3a Slanted surface
4 Waterway 4f Forward flow
4b Backflow 4m Confluence
5 Water supply and drainage pipe 51 On-off valve
52 Water supply and drainage source 53 Filter machine 6 Water supply and drainage machine
61 Submersible pump 7 Avoidance waterway
8 Exit 81 Scaffold T Water tank
W Water level WT Water tank water level

Claims (5)

Comprising a pool, an inner wall, and a protrusion,
The pool has a first side surface and a second side surface facing each other in the depth direction, a third side surface and a fourth side surface facing each other in the width direction, and a bottom part,
The inner wall extends from the first side surface to the second side surface and divides the pool into a water supply side area and a drainage side area, and the water supply side area has a wall extending toward the second side surface. There is a water supply port for discharging water, and the drain side area has a drain port;
The wave-making device is characterized in that the protrusion is provided at the bottom between the end of the inner wall and the second side surface.
The water supply side area and the drainage side area are symmetrical with respect to the inner wall,
The water supply port and the drain port are connected by a water supply and drainage pipe, and the water supply and drainage pipe is provided with a water supply and drainage machine that can change the flow of water in the forward and reverse directions. Wave making device. 3. The wave-making device according to claim 1, wherein an avoidance waterway is provided on the back side of the pool with the second side surface interposed therebetween.
The wave-making device according to claim 1 or 2, wherein the pool is configured to be foldable or disassembleable.
The wave-making device according to claim 1 or 2, wherein a water storage tank is provided adjacent to the first side surface.

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