JPS6233975A - Auxiliary floor of easily movable pool - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed Description of the Invention] A. Purpose of the Invention (Field of Industrial Application) This invention relates to an auxiliary floor used to make the bottom of the pool shallow when a child is placed in an adult pool to swim. This invention can be used as an auxiliary floor that can be easily moved when cleaning under the floor.

(Prior art) Adult pools (usually 1.1 to 1.2 m deep) are too deep and dangerous for children to swim in, so an auxiliary floor is submerged in a part of the pool. The bottom of the used part is made shallower. For example, as shown in FIG. 4 (plan view of the pool), an auxiliary floor A is provided approximately within the width of the pool L, and the depth of this portion is approximately 70 cm.

The auxiliary floor is constructed by arranging small flooring materials 2 of approximately 52 m in length and 1 m in width, as illustrated in FIGS. 5 and 6. The floor material 2 illustrated here has six leg pieces 2b protruding from the bottom surface of a top plate 2a, and is made of fiber reinforced resin (FRP, specific gravity 1.5).
The weight of one piece is 35 kg.

If this floor material 2 is used to construct an auxiliary floor A with a width of 4 m on one side of a 25 m pool, 50 pieces of floor material will be required, and their total weight will be 1750 kg.

(Problem to be solved by the invention) The bottom of the pool must be cleaned every week, but
The area under the auxiliary floor A installed as described above cannot be cleaned because there are many leg pieces 2b.

In addition, to remove auxiliary floor A from the installation position, it is sufficient to disassemble the auxiliary floor into flooring material 2, but since adjacent flooring materials are usually tied together with wire at several places, this is necessary. However, after cleaning the pool bottom, it takes a lot of effort and time to reassemble it, so it is not possible to use the pool bottom.

Also, if you try to move the flooring 2 while connected,
A large number of people are required to manually move the entire heavy auxiliary floor at once as described above.

Further, even if mechanical power such as a winch is to be used, it is often difficult to install such a machine beside a pool, and there is a high risk of injury to the operator.

Structure of the Invention (Means for Solving the Problems) This invention is based on the following features: an elongated cylindrical floating bladder is installed under the auxiliary floor in advance, the air is removed from the bladder when the auxiliary floor is fixed, and the auxiliary floor When moving, air is injected into the swim bladder to inflate it, and the buoyant force causes the auxiliary floor to rise above the bottom of the boule, and the auxiliary floor is constructed so that it can be moved sideways while floating on water.

(Function) When a valve installed at one end of the elongated cylindrical swim bladder installed under the auxiliary floor is opened and air is injected by a compressor, the swim bladder expands and generates buoyancy, causing the entire auxiliary floor to float.
- This allows you to pull it with light force and move it to the other side of the pool.

Next, when the valve is opened to release the air inside the swim bladder, the water pressure compresses the swim bladder and causes it to lose its buoyancy.The auxiliary floor sinks and is placed on the bottom of the pool, making it safe for infants on the moved side. can be used for swimming, and the original area of the auxiliary floor can be cleaned.

By doing this alternately, you can always clean the bottom of the pool and keep it clean.

(Example) Figures 1 to 3 show an elongated cylindrical swim bladder and a state in which it is attached to a floor material to constitute the auxiliary bed B of the present invention. Figure 1 is a partial side view of the swim bladder, and Figure 2 is a partial side view of the swim bladder. 3 is a side view showing a state in which this is attached to a flooring material, and FIG. 3 is a plan view of a pool in which this is installed.

The same reference numerals are used for parts equivalent to those of the conventional auxiliary floor A shown in FIG.

In this embodiment, four slender cylindrical swim bladders 3 are connected to form a length that is twice the length of the pool (25 m), and are folded at the center to form two parallel swim bladders. It is shaped like this.

The two swim bladders 3.3 are communicated with each other by connecting air pipes 4a, 4a provided at their ends with a joint 5.

- One air pipe 4b at the outermost end of the swim bladders connected in this way is connected to a compressor. The other outermost air tube is occluded.

A triangular flap 6 is attached to the side of the swim bladder 3 along its base 6.
a, and pass the wire 7 (or string) through the eyelet hole 6b provided in the flap to connect the connected flooring materials 2 as shown in Figure 2.
．． Tie it to the small hole provided on the bottom of 2.

When the float bladder 3.3 is installed in this way and the float bladder is deflated without injecting air, no buoyancy is generated, so the auxiliary floor B sinks into the water and is supported by the top plate 2a supported by the one leg piece 2b. A pool bottom is formed at a position of about 70c.

When air is injected from the air pipe 4b by the compressor,
The four float bladders expand to increase their volume, and the resulting buoyancy causes the entire auxiliary bed to float on the surface of the water. Then, you can pull the auxiliary floor sideways and lightly move it to the other side of the pool, then let the air out of the swim bladder and let the auxiliary floor sink, allowing you to install a new auxiliary floor at this location.

Thereafter, the pool bottom at the old position of the auxiliary floor B can be easily cleaned.

1 piece of flooring material 2 (length 2m, specific gravity 1.5, weight 35 kg
) is the weight in the water Ww, if the weight in the air is Wa and the specific gravity is K. Therefore, the weight in the water of one flooring material 2 is 11.
It will be 7 kg.

When the diameter of the elongated cylindrical swim bladder is changed, the
Calculating the change in buoyancy due to expansion per meter results in a linear table. In this table, the safe buoyancy is a conservative buoyancy with a safety factor of 1.3 taking into account the reduction in buoyancy due to water leakage into the swim bladder.

In order to float the floor material 2 weighing 11.7 kg in ice, the diameter of the float bladder should be greater than foes.

As the material of the swim bladder, flexible, watertight, and durable materials such as rubber, rubberized canvas, and soft resin can be used.

C. Effects of the Invention The auxiliary bed B of the present invention, which is configured and operates as described in -1-, has the following effects.

(+) It can be constructed by simply attaching an elongated cylindrical floating bladder 3 to an auxiliary floor A that is a combination of conventional flooring materials 2.

(2) By filling the floating bladder 3 with air using a compressor, the auxiliary bed can be floated and easily moved.

(3) It is also easy to sink the floating auxiliary bed B by removing the air from the floating bladder 3.

(4) Since the entire auxiliary floor is floated and moved all at once, it can be moved by a small number of people.

(5) There is no need to install a winch that could cause injury, and the equipment becomes simpler.

[Brief explanation of drawings]

Figures 1 to 3 show examples of the present invention. Figure 1 is a side view of an elongated cylindrical swim bladder, Figure 2 is a side view of a flooring with a swim bladder attached, and Figure 3 is a side view of a floor material with a swim bladder attached. A plan view of the pool,
Figure 4 is a plan view of a pool with a conventional auxiliary floor A;
The figure is a perspective view of the flooring, and FIG. 6 is a plan view of the flooring. 1: pool, 2: flooring, 2a: top board, 2b = leg piece, 3:
Swim bladder, 4a, 4b = air tube, 5: joint, 6: flap, 6a: base, 6b: eyelet, 7: side, A, B:
Auxiliary floor.

Claims (1)

[Claims] The auxiliary floor of the pool is constructed by combining flooring material (2) heavier than water with leg pieces (2b) protruding from the bottom surface of the top plate (2a), and has an airtight flexible elongated cylindrical shape and is equipped with a valve. Swimming bladder (3
) is attached to the lower surface of the floor material (2) through between the leg pieces (2b), and the floating bladder (2) is filled with air to float and move.