JPH06146626A - Swimming pool - Google Patents

Abstract

PURPOSE:To provide a swimming pool with a cushioning property, excellent safety, economical production cost and installation cost of a cushioning mat. CONSTITUTION:A cushioning mat 3 is formed of a sheath member filled with a shock absorbing material consisting of a synthetic resin foamed body. At least the whole peripheral edge of bottom surface of the cushioning mat 3 and the corresponding portion of a water-proof sheet 4 covering the inner wall surface of a swimming pool are welded together by applying solvent to each portion for example. While the cushioning mat 3 is simply constracted with easy execution, water does not invade below the installation surface of the cushioning mat 3 so that excellent performance and safety are provided and execution cost are low.

Description

Detailed Description of the Invention

[0001]

FIELD OF THE INVENTION This invention relates to swimming pools.

[0002]

2. Description of the Related Art Generally, an inner wall surface of a swimming pool, that is, a bottom wall portion, a side wall portion, and a stepped portion formed between the upper edge and the upper wall of the swimming pool are provided on an upper surface of a base material such as concrete or a metal plate. The waterproof layer is formed by applying mortar or paint to form a surface layer, or by stretching a waterproof sheet.

However, since the waterproof layer has almost no cushioning property as it is, a person may jump into the pool and accidentally collide his head, limbs and the like strongly with the bottom of the pool, causing serious injury to the body. There is a risk. By the way, the cervical spine injury accident when diving in the pool is about 1 year.
It is said that about 0 cases have occurred.

Therefore, the present applicant has previously proposed that a swimming pool in which a plurality of cushioning mats having a predetermined size and shape are laid on a part or the whole of the bottom wall of the pool or a part or the whole of the side wall of the pool. Was developed. The buffer mat used for this pool has been devised in various ways so as to have a specific gravity of 1 or more so as not to float in the pool filled with water (see Japanese Utility Model Laid-Open No. 2-87874).

By doing so, even if a person jumps into the pool and accidentally collides his head or limbs strongly against the bottom wall of the pool, the shock-absorbing mat absorbs the impact and seriously affects the body. It was intended to prevent damage accidents.

[0006]

By the way, the above-mentioned prior art can be easily and inexpensively installed in all pools, existing or new, and can be easily removed when unnecessary. The one laid on the side, when making a turn to change direction in the practice of beginners,
Although it often collides with the side wall of the pool, it has the effect of helping to mitigate the impact in such a case.

However, in order to make the specific gravity of the cushioning mat 1 or more on the one hand, as a structure for forming the mat, the weight of the weight is attached to the lower part of the exterior material which is a mat-like bag made of a material having excellent strength. The structure becomes complicated, such as housing a rubber sheet that plays a role, laminating a cushioning material on it, or attaching a valve or valve to the exterior material so that liquid such as water can be injected and filled. Since the production cost is relatively high, it was difficult to apply this to all pools.

As a result of various efforts, the inventor of the present invention has developed a pool mat between a cushion mat laid in the pool and a pool wall even if the mat is mainly made of cushion material and has a specific gravity of 1 or less. The present invention has been completed, focusing on the fact that buoyancy does not work if the water is prevented from entering.

That is, the present invention is a swimming pool in which the above-mentioned drawbacks of the prior art are solved, and a cushioning mat is provided on the upper surface of a waterproof sheet. The aim is to provide a swimming pool that can be widely adopted, ranging from ranked competitive swimming pools to low ranked individual swimming pools.

[0010]

According to the present invention, "a waterproof sheet is covered on the inner wall surface of a pool, and a plurality of cushioning mats are laid on the upper surface of the waterproof sheet, and the cushioning mat is compatible with the waterproof sheet. It is composed of an exterior material made of a certain material and a cushioning material housed inside, and is fixed to a waterproof sheet by welding at least the entire peripheral edge of the cushioning mat laying surface. "Swimming pool".

That is, the swimming pool of the present invention adopts a cushioning mat having a simple structure, and fixes this cushioning mat to the upper surface of the waterproof sheet as a measure for preventing floating, and "welding" for fixing. The main idea is to reduce the production cost and construction cost by adopting the following means.

The inner wall surface of the swimming pool as referred to in the present invention is a waterproof sheet for maintenance and management of the pool, such as a bottom wall portion, a side wall portion and a step portion formed between the upper edge and the upper wall. Refers to the wall surface that needs to be attached.

The waterproof sheet used in the present invention is not particularly limited and may be a conventionally known one. However, as will be described later, a waterproof sheet made of a material compatible with the exterior material of the cushioning mat is used. Must be used. Specifically, when the exterior material of the cushioning mat is made of soft vinyl chloride resin, it is preferable to use the waterproof sheet made of soft vinyl chloride resin.

The cushioning mat used in the present invention generally has a square shape, but may have an elliptical shape, a triangular shape, a polygonal shape or other irregular shape. Further, as will be described later, it may have a lower edge as shown in FIG. In addition, the size is, for example, a vertical length of 1 from the viewpoint of transportability, storability, workability, etc.
It is preferable that the dimensions are m, width 1 m, and thickness 3 cm, but the dimensions are not necessarily limited thereto.

The structure of the cushioning mat used in the present invention is such that the cushioning material is provided inside the exterior material, and the specific gravity does not necessarily have to be 1 or more, but rather the main points are cushioning property, strength and the like. Use the formed one.

First, as the exterior material, one having excellent water resistance, chemical resistance and impact resistance, for example, a thickness of 0.5 to 2 m.
A soft synthetic resin sheet of about m is suitable, and specifically, it is made of a soft vinyl chloride resin which is a general-purpose resin and has a thickness of 1.
A 5 mm sheet is mentioned. And this sheet,
When a cushioning material is provided inside, it is processed into a bag shape having a predetermined shape such as a square shape.

Next, as the cushioning material, synthetic resin foam such as polyethylene, polypropylene, polypinyl chloride, polyurethane, polystyrene, etc., natural rubber, or synthetic rubber such as chloroprene, SBR, etc. is used as a material, and these are block-shaped. One may be used, or one in a chip shape may be used. Specifically, a polyethylene 20 times foam is preferable because it is excellent in water pressure resistance and elasticity.

In the swimming pool of the present invention, means for "welding" is adopted to fix the cushioning mat to the upper surface of the waterproof sheet, and by this means, the laying surface of the cushioning mat (usually its lower surface). It is necessary to fix at least the entire periphery of the above to the waterproof sheet.

In this welding means, a solvent that dissolves the exterior material of the waterproof sheet and the cushioning mat is applied to these welded portions, and when the surface layer portion swells or dissolves, both are pressure-bonded or heat-pressure bonded and dried. There is a method in which hot air is blown to the to-be-welded portion and pressure is applied when the surface layer portion is semi-melted or melted by heat. The solvent needs to dissolve both the waterproof sheet and the exterior material. For example, when both are made of soft vinyl chloride resin, a solvent containing tetrahydrofuran as a main component is preferable.

In addition, the portions other than the entire peripheral edge of the cushioning mat laying surface are left completely free, or similarly fixed by welding, or an appropriate adhesive having excellent water resistance is selected. Whether to apply and adhere may be arbitrarily selected. By doing so, when the cushioning mat has, for example, a rectangular shape, since it is welded over at least the entire four edges of the fixed surface, infiltration of water below the laying surface of the cushioning mat can be prevented. Of.

In the swimming pool of the present invention, the mode for laying a plurality of the above-mentioned cushioning mats on the inner wall surface of the pool is not limited to the case of laying the entire wall surface, but it is partially laid. In some cases, in the case of partial laying, various things can be considered depending on the scale, rank, etc. of the pool. For example, as shown in FIG.
Normally, up to a 5m line is laid, but when laying directly above each course line as in the example of laying 5 stations in the figure,
When laying to the left and right along each course line as in the example where 10 stations are laid in the figure, or laying on the entire bottom wall surface up to the 5 m line as in the example where 65 stations are laid in the figure. This is the case.

[0022]

In the swimming pool of the present invention, the inner wall surface of the swimming pool is covered with a waterproof sheet, and a plurality of cushioning mats are laid on the upper surface of the waterproof sheet. Since it is fixed by welding, water does not enter below the laying surface of the cushioning mat, and the structure of the cushioning mat does not necessarily require a device to have a specific gravity of 1 or more. Further, since it is not necessary to use any material other than the cushioning material, the size and weight will not be unnecessarily large or heavy.

Further, since the exterior material of the cushioning mat is made of a material compatible with the waterproof sheet, the cushioning mat can be fixed to the waterproof sheet by a simple means of "welding". Since the use of a special fixture that destroys the waterproof sheet is unnecessary, the original function of the pool is not impaired due to the laying of the cushioning mat.

[0024]

EXAMPLES Examples of the present invention will be described below. FIG. 1 is a schematic cross-sectional view showing an embodiment of the present invention together with its mode of use, FIG. 2 is a drawing of a cushioning mat used in the same as above, and FIG. 2 (a) is a bottom view thereof. FIG. 2B is a front sectional view of the above, and shows a mode in which the solvent is applied to the entire peripheral edge of the bottom surface of the waterproof sheet before the welding.

In these figures, 1 is the inner wall surface of the pool in which the concrete base material is exposed, 2 is the start stand, 3,
.. is a cushioning mat made of a soft vinyl chloride resin stretched over the inner wall surface 1 of the pool, and fixed on the inner wall surface 1 of the pool with an adhesive. In addition, 5 is an athlete.

As shown in FIG. 2, the cushioning mat 3 has a substantially square shape in plan view or bottom view, and is made of a soft vinyl chloride resin and has a thickness of 1.5 mm. And a square plate-shaped cushioning material 7 made of a polyethylene 20-fold foam, which is housed in this. 8 is the laying surface of the cushioning mat 3 (lower surface in this case)
Is a solvent layer applied to the welded portion set in a frame shape on the entire peripheral edge of.

The thus-formed 65 cushioning mats 3 are laid in the 25-m pool shown in FIG. 3 in accordance with "Example of 65 continuous laying" to form the pool P1 of the present invention. In addition, as the cushioning mat used in the present invention, as shown in FIG. 4, the laying surface of the exterior material 6 is made slightly larger than the top surface, or a fold is provided at the lower part of the side surface so as to be flush with the laying surface. The lower edge 9 may be provided around the lower edge 9 by such means.
The lower surface of the can be a solvent application surface or a heating surface, and deformation of the buffer mat 3 due to the solvent or heating can be prevented.

Experimental Example Further, as shown in FIG. 5, using a pool P2 provided with the same conditions (water depth = 90 cm) as the above-mentioned pool P1, a dive test was carried out using a special human body dummy (doll).
The specification of this human body dummy 10 is that steel pipe is manufactured as a basic material, each joint is fixed with bolts and nuts, and is set with a torque meter, and the outer surface is made of synthetic rubber to make it similar to that of the human body. Surface finish by covering, height 170 cm, weight 6
It is set to 1 kg.

Then, as shown in FIG. 5, the dummy 10 is attached to the launch pad 11 in which the plunge angle .theta.
On the other hand, on the bottom of the pool P2, a force plate 12 for receiving the dummy 10 is installed, and on this force plate 12, a test sample in which a cushioning mat used in the present invention is laid by welding on a waterproof sheet is installed. Then, the impact force when the dummy 10 collides was measured with a measuring device (not shown) installed outside the pool P2. At the same time, as Comparative Example 1, a waterproof sheet having a thickness of 1.5 mm was laid on a concrete floor piece, and similarly, as Comparative Example 2, a fiber-reinforced synthetic resin floor piece was prepared. The impact force was measured, and each measurement result is shown in a bar graph in FIG.

As is apparent from the bar graph of FIG. 6, the example using the cushioning mat according to the present invention is the comparative example 1.
It can be seen that it has a buffering capacity (= safety factor) about 4 times that of Comparative Example 2 and about 3 times that of Comparative Example 2.

[0031]

In the swimming pool of the present invention, the inner wall surface of the pool is covered with a waterproof sheet, and a plurality of cushioning mats are laid on the upper surface of the waterproof sheet, and at least the cushion mat laying surface with respect to the waterproof sheet. Since the entire peripheral edge is fixed by welding, water does not enter below the laying surface of the cushioning mat, and the structure of the cushioning mat does not necessarily require a specific gravity of 1 or more. Further, since it is not necessary to use any material other than the cushioning material, the size and weight will not be unnecessarily large or heavy. Therefore, the cushioning mat can be designed with emphasis on impact resistance, cushioning property, strength, etc., and a pool with excellent performance can be realized, and the structure of the cushioning mat is simplified, and the manufacturing cost can be reduced. Will be cheaper.

Since the exterior material of the cushioning mat is made of a material compatible with the waterproof sheet, the cushioning mat can be fixed to the waterproof sheet by a simple means of "welding". Since the use of a special fixture that destroys the waterproof sheet is unnecessary, the original function of the pool is not impaired due to the laying of the cushioning mat. Therefore, the construction of the cushioning mat is easy, which can contribute to the reduction of the construction cost of the entire pool.

As a pool having excellent performance and safety as a whole, it can be widely used from a highly ranked public facility pool to a personal pool.

[Brief description of drawings]

FIG. 1 is a schematic cross-sectional view showing an embodiment of the present invention together with its mode of use.

FIG. 2 shows a state in which a buffer mat used in the same as above is coated with a solvent for welding with a waterproof sheet.
Is a bottom view thereof, and (b) is a front sectional view thereof.

FIG. 3 is a plan view for explaining various modes when the cushioning mat used in the present invention shown in FIGS. 1 and 2 is laid in a pool.

FIG. 4 is a partially cutaway perspective view showing another example of the cushioning mat used in the present invention.

FIG. 5 is an explanatory diagram showing a method of an evaluation test according to the example of the same.

FIG. 6 is a bar graph showing the results of the above evaluation test.

[Explanation of symbols]

 1 Bottom of pool 2 Start stand 3 Buffer mat 4 Tarpaulin 5 Competitor 6 Exterior material 7 Buffer material 8 Solvent layer 9 Lower edge 10 Human body dummy 11 Launch pad 12 Forth plate

Claims (1)

[Claims] 1. A waterproof sheet is covered on the wall surface of the pool,
A plurality of cushioning mats are laid on the upper surface of the waterproof sheet,
The cushioning mat is composed of an exterior material made of a material compatible with the waterproof sheet and a cushioning material housed inside the exterior sheet, and at least the entire peripheral edge of the cushioning mat laying surface with respect to the waterproof sheet. A swimming pool characterized by being fixed by welding.