JPH0133627B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a circulating water tank device for swimming practice that allows swimmers to practice swimming at a fixed location, and more specifically, a simple circulating water tank device that uses a part of a general pool as part of the circulating water tank. This is related to.

2. Description of the Related Art Recently, pools have become popular not only in schools but also in swimming clubs, etc., and various types of swimming are being held.
However, in the currently used teaching methods such as swimming strengthening exercises, swimming form correction, and research on how to swim, instructors walk with the swimmers at the poolside and look from above, or in some facilities It is enough to look at the side or lower part of the swimmer through a viewing window installed on the underwater side wall of the main body and provide appropriate guidance. This makes detailed form analysis and instruction difficult, of course, and the biggest problem here is that at least the supervisor (instructor) has to walk along the poolside with the swimmers, which is cumbersome. It's summery.

Furthermore, in order to eliminate the above-mentioned deficiencies, a circulating water tank for swimming has been experimentally developed (manufactured by the applicant of the present invention), which allows the water to flow so that swimmers can swim essentially in one position. However, since this recirculation water tank is a dedicated experimental tank for the purpose of making various measurements, it has a tank structure that is completely separate from that of general pool facilities. For this reason, the narrow swimming path is far from an environment in which swimmers can comfortably swim without feeling mentally uneasy. Furthermore, since this recirculating water layer adopts a vertical circulating water flow system, the entire aquarium has a so-called 2
It has a storied structure, so it had to have a sturdy structure down to the foundation work, which increased production costs and made it difficult to make it into a popular circulating water tank.

The present invention has been completed in view of the above-mentioned circumstances, focusing on the fact that it would be of great benefit to those skilled in the art if the circulating water tank became a simple facility that could be incorporated into the main body of a general swimming pool.

That is, in the present invention, the circulation waterway is of a horizontal circulation type, and at least the open waterway, which becomes the swimming path portion, is constructed by dividing a part of a general pool facility,
This is a circulating water tank device for swimming practice that has a swimming path that does not put you under mental pressure.

Hereinafter, the present invention will be explained based on the drawings of one embodiment.

1 is a general pool body such as a 50m or 25m pool, and a running water nozzle opening 2 is provided on the side wall 1a of the entrance corner a, which is one side thereof, and a circulating water tank is provided at the back (inside) of the running water nozzle opening 2. The circulation body 4a which becomes the closed channel 4 in 3 is installed at the lower surface position of the pool side b, and at least one course from the side wall of the pool body 1 is placed in front of the flowing water nozzle opening 2 which becomes a part of the pool body 1. Swimming path section 7 that is partitioned by a removable strip-like partition member 5 with a width l and becomes an open waterway 6.
The rear end of the swimming path 7 faces the suction port 8 bored in the side wall 1b perpendicular to the side wall 1a, the circulation body 4a is connected to the suction port 8, and the circulation water tank is connected to the circulation body 4a. 3 is a horizontal circulation type circulation water tank having a rectangular frame shape as a whole. In this case, of course, the tip of the partition member 5 on the rear end side of the swimming path 7 is bent into the partition member 5a.
It is bent orthogonally as shown in FIG. In addition, a single flow propeller 9 is provided at the base of the differential user section 4a' formed in the middle of the circulation body 4a, and the flow propeller 9 has an axial flow pump type rotation mechanism and is installed outside the body. Variable speed motor 1
0 so that the rotation can be controlled. 11
1 is a rectifying member that serves as a rectifying grid provided at the flowing water nozzle opening 2 and the suction port 8, and the rectifying member 11 works together with drifting blades 12 provided diagonally with respect to each corner 3a of the circulating water tank 3 to form a swimming path. The flow velocity distribution in section 7 is made uniform. The deflection blade 12 is formed by arranging a plurality of curved blade portions at predetermined intervals. Reference numeral 13 denotes a safety net stretched over the terminal end of the swimming path section 7, which together constitutes a recirculation water tank device 14 for swimming practice. In addition, a partition member 5 that partitions this pool body 1
As an attachment/detachment means, a locking metal fitting 15 which can be freely attached to the side wall 1a which forms the mouth edge of the flowing water nozzle mouth portion 2 is provided protrudingly, and the waist member of the partition membrane body 5' which becomes the partition member 5 is attached to the locking metal fitting 15. hook part 18 at the end of the tension wire 17
and parallel to the side wall 1b (course width)
The partition membranes 5' to be stretched on the pool body 1 are fixed at appropriately spaced positions to a plurality of reinforcing columns 19 which are installed in advance in the buried column receiving fasteners 16 at appropriate intervals on the bottom surface 1c of the pool body 1. In addition, the tip bent portion 5a of the partition member 5 is formed into a biasing blade with a hanging protrusion by a support arm 20 extending from the pool side side, which serves as a side wall 1b disposed diagonally (45 degrees) with respect to the suction port 8. 12 and fixed to the edge of the suction port 8, and a swimming path 7 is formed in the pool body 1 by the partition of the partition member 5.

Next, to explain this function, first, the swimming path portion 7 of this circulation water tank device 14 utilizes the side portion of the pool body 1 to the last. For this purpose, a rolled-up partition membrane 5' is developed along the planting pillars 19 on the side of the pool body 1 to partition one corner of the pool body 1 into a part of the circulating water tank 3. Naru open waterway 6
Let the swimming path section 7 be as follows.

Here, if the flow propeller 9 located in the closed waterway 4 section of the circulating water tank 3 is rotated by the drive of the variable speed motor 10, this accelerated water flow A is generated.
passes through the circulation body 4a to the side wall 1a of the pool body 1.
The water flows out from the nozzle opening 2 into the swimming channel 7 at a constant flow rate, forming a horizontal circulation channel as a whole.

In this state, swimmer B enters the swimming path section 7, which is part of the pool, and swims toward this water current (swims against the water current). In this case, if the swimming speed and the water current speed are equal, swimmer B can swim at a certain position in the swimming path section 7. Therefore, in addition to training to strengthen swimming, the swimming style (form) can be monitored by the instructor from the pool side b or through the viewing window 21 made of a transparent member such as glass formed on the side wall 1b of the pool body 1 that is underwater. This allows for easy form correction and swimming instruction. Note that the flow velocity of this water flow can be changed as appropriate by changing the rotation of the flow propeller 9 (for example, 0 to 2.5 m/s).

Moreover, the circulating water jetted from the water nozzle opening 2 is controlled by a rectifying member 11 made of a rectifying grid, punch metal, etc. located at the outlet, and a plurality of deflecting blades 12 in the form of arc-shaped plates at each corner 3a. The water flow is adjusted, the velocity distribution is made equal, and you get the feeling that you are swimming on a stationary water surface (ordinary pool surface).

Even if swimmer B gets tired of swimming and gets swept away by the water current A, there is a safety net 1 at the end of the swimming path section 7.
3 is stretched, so you can swim with peace of mind without being swept away to the suction port 8 side. Of course, this safety net 1
The third section is provided with an emergency stop limit switch (not shown) that stops the flow propeller 9 if an excessive load is applied.

As described above, the recirculation water tank device for swimming practice of the present invention includes a swimming path portion formed by having a partition member as a part of the pool body, and an open water channel serving as the swimming path portion;
By adopting a so-called horizontal circulation type recirculation water tank configuration in which a closed waterway, which serves as the recirculation operation engine section where the sending propeller is arranged, is combined in a planar manner, the installation space is relatively large, but the dead space at the bottom of the pool side is used. There are no problems with this method, and the structure itself can be sufficiently constructed with a simple structure, and it is cheaper than the vertical circulation water flow system, and maintenance and management are easy. Moreover, the best part of the present invention is that this swimming path is incorporated into the pool body, so you can swim in exactly the same environment as before, without putting any mental strain on you. Of course, it is also possible to configure it as part of an existing pool facility. Furthermore, this water flow can be controlled by changing the rotational speed of the sending propeller using a variable speed motor, so the flow velocity can be matched to the speed of the swimmer, and the water flow itself is regulated by a rectifying member, drifting blades, etc., so that it is uniform. This provides effects such as a smooth flow velocity distribution and the ability to swim effortlessly.

[Brief explanation of drawings]

The drawings show an embodiment of the present invention, and FIG. 1 is a plan view, FIG. 2 is an explanatory diagram of a swimming path, FIG. 3 is a longitudinal cross-sectional side view of a flowing water nozzle mouth, and FIG. 4 is a biased flow blade. FIG. DESCRIPTION OF SYMBOLS 1...Pool body, 1a, 1b...Side wall, 2...Water nozzle mouth part, 3...Horizontal circulation type circulation water tank, 4...Closed channel, 5...Partition member, 6...Open channel, 7...Swimming path part, 8...Suction Mouth part, 9... Feed propeller, 11... Straightening member, 12... Deviation blade, 13... Safety net, a...
Inner corner, b...poolside.

Claims (1)

[Claims] 1. One side of the pool body is partitioned with a removable band-shaped partition member having a width equal to or greater than the water depth to form an open channel with a width of at least one course, and is provided on the side wall of the pool body at the front and rear ends of the open channel. A U-shaped closed channel equipped with a single flow propeller is connected to the flowing water nozzle mouth and suction port, and to the midway differential user part located under the poolside floor, and the overall shape is a rectangular frame. A horizontal circulation type recirculation water tank is formed, and biased flow blades formed by a plurality of curved blade parts with a predetermined interval are attached to each corner located on the four sides of the recirculation water tank, and the flow water nozzle mouth part and the suction port are attached. A rectifying grid is provided at the end of the open waterway, and a safety net is placed in front of the deflection blade that forms the end of the open waterway, and the sending propeller is connected to a variable speed motor installed outside the closed waterway. Features a circulating water tank device for swimming practice.