JPH09266832A - Water containing mat - Google Patents

Abstract

PROBLEM TO BE SOLVED: To secure a thickness, reduce weight, and uniformize a temperature of the whole area of a mat by forming a water bag in which water is sealed in a mat shape, and forming a gas sealing space part in a large area part of its intermediate height position. SOLUTION: A rectangular single water bag 1 having the area of almost two times the final area is folded back in a U shape in a lengthwise directional central part. A proper interval is formed between an upper side water bag part 1A and a lower side water bag part 1B. The outer peripheral three sides of this interval are sealed by a side surface sheet 5, and a space part 2 is formed. Water W is filled in the upper side water bag part 1A and the lower side water bag part 1B. Compressed air A is filled in the space part 2 from an air supply port 8. The water bag 1 is connected to a box 10 housing a temperature adjusting apparatus 11 and a circulating pump 12 by a supply pipe 13 and a return pipe 14, and the water W in the water bag 1 is circulated, and a temperature is adjusted.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a water-containing mat obtained by forming a water bag with water sealed inside into a mat, and more specifically, it is used as a mat for a room carpet or bedding, for example. The present invention relates to a water-containing mat.

[0002]

2. Description of the Related Art As an example of this type of water-filled mat, there is a water bag conventionally used for a water bed. This type of water bed is manufactured with an emphasis on cushioning, and the water bag used in the water bed is dented at the portion where the weight is applied when a person is put on it to provide cushioning. It is designed to work.

In addition, some water beds are known in which a water bag is heated by a sheet heater from its lower surface side. In this way, by heating the water bag with the sheet heater, it can be used comfortably even when the water bag becomes cold, especially in winter.

[0004]

However, in this type of water bag, if the overall thickness is thin, the amount of water stored inside is small and the overall weight is relatively light, but a large weight is added during use. There is a problem that the upper sheet and the lower sheet of the bag are stuck to each other at a portion and the cushioning action is lost. On the contrary, if the overall thickness is increased,
Since a large amount of water is stored in the bag, the volume (cushioning property) is secured, but the bag becomes heavy and handling such as movement becomes inconvenient. For example, when the size of the water bag is about 100 cm in width, 160 cm in length, and 10 cm in thickness, the weight of water contained in the bag is 1
It will be 60 kg and it will be difficult to move. Therefore, in the water bag used in conventional water beds,
It is divided into a plurality of pieces to reduce the weight of each piece.

Further, in the case where the water bag is divided into a plurality of pieces as described above, when the water bag is heated by the sheet heater as described above, the divided water bags are uniformly heated. However, temperature differences occur depending on the location of each water bag. That is, when the water bag is divided into a plurality of parts, it is difficult to uniformly heat each water bag, and the contact area with the outside air or the human body is different, so the temperature lowering condition is different. Will naturally occur.

In view of the above-mentioned problems of the conventional water-containing mat (water bag), the present invention can simultaneously secure the volume (thickness) and reduce the weight, and make the temperature of the entire area of the mat uniform. The purpose is to provide such a water-filled mat.

[0007]

The present invention has the following structure as means for solving the above-mentioned problems.

Invention of Claim 1 In the water-filled mat according to the invention of claim 1 of the present invention, a water bag in which water is sealed is formed in a mat shape, and a large area portion at an intermediate height position is formed in the water bag. , Which forms a space in which gas is sealed.

The sheet material for the water bag preferably has waterproofness and toughness but does not have elasticity. Further, distilled water may be used as the water contained in the water bag.

The water-filled mat of the present invention has a relatively small area, such as a cushion or a mat for infants, such as a double bed, and a large area that can be used as a carpet in a room. It is possible to form an object having an appropriate area such as a thing. That is, it is possible to form from a small area of about 50 cm square to a large area of, for example, a carpet for 6 tatami mats. The thickness of this water-filled mat is
The thickness can be appropriately set depending on the application, but for example, a small thickness of about 5 cm to a large thickness of about 20 cm can be formed.

It is preferable that the space portion formed in the water bag is formed in a range covering substantially the entire area of the water bag. Further, the thickness of the space portion can be appropriately designed according to the application (weight on the mat). For example, the thickness of the space is designed in the range of about 80% to 40% of the total thickness of the mat.

As the gas sealed in the space, ordinary compressed air can be used. Further, this sealed gas is maintained at an appropriate high pressure state according to the application (weight on the mat). An air supply port with a check valve may be provided in this space so that air supply (pressure adjustment) can be performed by an air pump or the like as necessary.

In the water-filled mat according to the first aspect of the present invention, since the space portion forming the air layer is formed in the water bag,
The volume can be secured, and the amount of water can be reduced by the gas volume of the space. Therefore, with the water-filled mat according to the first aspect, it is possible to secure cushioning properties during use and also achieve weight reduction.

Invention of Claim 2 In the invention of Claim 2 of the present application, in the water-containing mat of Claim 1, helium gas is adopted as the gas sealed in the space. The helium gas is commercially available as a simple cylinder filled in a compressed state, and is easily available. When helium gas is used as the gas sealed in the space as in claim 2, the helium gas has a specific gravity lighter than that of air, so that the water-containing mat acts to levitate, and the water-containing mat The weight can be reduced.

Invention of Claim 3 of the Invention In the invention of Claim 3 of the present invention, in the water-containing mat of Claim 1 or 2, the water in the water bag is circulated by a circulating device, and the circulating water is further cooled or cooled. The temperature can be adjusted with a temperature control device such as a heater. A water pump is used as the circulation device, and the water in the water bag is circulated by the water pump via a supply pipe and a return pipe. As the temperature adjusting device, a cooler is used when cooling the circulating water, and a warming device such as an electric heater is used when heating the circulating water.

In the water-filled mat according to the third aspect of the present invention, the water circulated by the circulation device is cooled or heated by the temperature adjusting device so that the water bag can be cooled or heated. There is.

[0017]

BEST MODE FOR CARRYING OUT THE INVENTION A preferred embodiment of the present invention will be described below with reference to FIGS. 1 to 4. A water-filled mat according to this embodiment is used, for example, as a carpet in a room. Is about 200 cm × 200 cm and the thickness is about 10 cm, for example. The size and shape of the water-containing mat are not limited to those shown in the drawings, and it goes without saying that they can be appropriately changed.

The water-filled mat of the illustrated embodiment has a rectangular shape (400 cm × 200 c) having an area approximately twice the final area.
m) The single water bag is folded back in a U shape at the center in the length direction, and the outer water bag portion 1A and the lower water bag portion 1B are appropriately spaced, and the outer peripheral portion 3 sides of the space are The side sheet 5 is hermetically sealed. The water bag 1 is filled with water (distilled water) W, and the space A between the upper water bag portion 1A and the lower water bag portion 1B is filled with the gas A in a compressed state. Has been done.

The upper water bag portion 1A and the lower water bag portion 1 of the water bag 1
The thickness of B (the distance between the inner and outer sheets 3 and 4) is, for example, 1
It can be about 5 cm. The upper water bag portion 1A
The inside and the inside of the lower water bag portion 1B communicate with each other at a bent portion 1C (FIG. 2). The thickness of the space 2 is, for example, 3 to
About 10 cm is suitable. Incidentally, these numerical values of thickness can be appropriately designed and changed according to the application.

The water bag 1 is formed in a U-shaped bag which is sealed by an outer sheet 3 and an inner sheet 4. As a material for the water bag 1 (the outer sheet 3 and the inner sheet 4), a flexible sheet having waterproofness and toughness is adopted. As the material, for example, a vinyl sheet alone or a material obtained by laminating an outer surface of a vinyl sheet with another sheet such as a fiber sheet can be adopted. The bent portion 1 of the water bag 1
It is advisable to provide C with a spacer (having water permeability) for preventing the inner and outer sheets 3, 4 from sticking together.

An air supply port 8 with a check valve for filling the space 2 with the compressed gas A is provided on the side of the side sheet 5 that seals the space 2 on the side opposite to the bent side. Space part 2
The gas A filled in may be the atmosphere (air), but helium gas may also be used. When air is used as the gas A, the atmosphere is supplied from the air supply port 8 into the space 2 by an air pump. When helium gas is used as the gas A, a commercially available cylinder-filled helium gas is supplied into the space 2 from the air supply port 8.
The gas A in the space 2 is filled in an appropriate high pressure state according to the application (weight on the mat).

In the water-filled mat of this embodiment, the water bag 1
The water W therein is circulated by the circulation device 12, and the temperature of the circulated water can be adjusted by the temperature adjusting device (cooler or warmer) 11. That is, the water inlet pipe 6 is attached to the end of the upper water bag portion 1A on the non-folded side, the supply pipe 13 is connected to the water inlet pipe 6, and the non-folded side of the lower water bag portion 1B. The water outlet pipe 7 is attached to the end portion, and the return pipe 14 is connected to the water outlet pipe 7.
A water pump serving as the circulation device 12 is provided between the supply pipe 13 and the return pipe 14, and the water W in the water bag 1 is generated by the water pump 12.
To circulate.

The temperature control device 11 and the water pump 12 are housed in a single box 10. Further, a tank 15 that temporarily stores the water W is also housed in the box 10, and the water W in the tank 15 is stored in the temperature adjusting device 1.
With 1, the temperature is adjusted (cooling or heating).
When the temperature adjusting device 11 is used for cooling water, a cooler is used, and when it is used for heating water, a warmer (electric heater) is used. The temperature adjusting device 11 is controlled to start and stop by a signal from a detector that detects the water temperature in the tank 15. Further, the set temperature of the detector can be set freely.

In this water-filled mat, when the water pump 12 is operated, the temperature-controlled water W is pumped up in the tank 15 and injected into the upper water bag portion 1A of the water bag 1 through the supply pipe 13. Then, the water in the upper water bag portion 1A is sent to the lower water bag portion 1B side, and the water in the lower water bag portion 1B is returned from the return pipe 14 into the tank 15, where the temperature adjusting device is provided. The temperature is adjusted (cooled or heated) by 11. In this way, the water temperature in the water bag 1 is maintained at a predetermined set temperature by sequentially circulating the temperature-controlled water W in the tank 15. In addition, the temperature adjusting device 11
The water temperature detector for controlling the start / stop of the above may be installed in the water in the return pipe 14 part or the water bag 1.

In the water-filled mat of this embodiment, the water bag 1
Since the space 2 composed of a gas layer is formed inside the
The volume (thickness) can be secured, and the amount of water can be reduced by the gas volume of the space 2. Therefore, with this water-containing mat, it is possible to secure cushioning properties during use and achieve weight reduction. Further, when helium gas is used as the gas A to be filled in the space 2, the specific gravity is lighter than that of air, so that there is a floating effect on the entire water-containing mat, and a further weight reduction can be achieved. .

The water-filled mat is used as a carpet in a room or a water bag for a water bed, as shown in FIG. 4, for example. When a person lies down on the water-filled mat, the weight of the person causes the upper water bag portion 1A of the water bag 1 to bend downward and exert a cushioning function. At that time, since the space A is in the gas A, the space 2 is compressed before the thickness of the upper water bag 1A is compressed as shown in FIG. The bag portion 1A bends downward while maintaining the initial thickness. Therefore, even if a person lays on the water-filled mat, the inner and outer sheets 3 and 4 of the upper water bag portion 1A do not stick to each other, and the circulation of the water W is not obstructed in the upper water bag portion 1A. . Thus, when the water in the water bag 1 circulates, the entire surface of the mat is maintained at a uniform temperature, and when the water W in the lying portion is flowing, the human body comes into contact with the mat. The temperature of the part that is being used is always maintained at the set temperature, and it can be used in a comfortable state at all times. The temperature of the circulating water W circulating in the water bag 1 is controlled by the temperature adjusting device 11
Needless to say, it can be freely adjusted by adjusting the control temperature of.

The water-filled mat of the present invention can be formed in a relatively small area for a cushion, a mat for infants, etc., as well as for carpets and water beds. or,
If the overall thickness is made as thin as possible to reduce the weight, it is possible to take this water-filled mat to the outdoors and use it.

[0028]

In the water-filled mat according to the first aspect of the present invention, since the space portion 2 serving as an air layer is formed in the water bag 1, the volume (thickness) can be secured and the gas in the space portion 2 can be secured. You can reduce the amount of water by volume,
Therefore, there is an effect that the weight reduction can be achieved at the same time while the cushioning property during use is secured.

Further, in the water-containing mat according to the second aspect of the present invention, since helium gas is used as the gas A sealed in the space 2, the helium gas acts to levitate the water-containing mat. Therefore, there is an effect that the weight of the water-containing mat can be further reduced.

Furthermore, in the water-filled mat according to the third aspect of the present invention, the water W in the water bag 1 is circulated by the circulation device 12, and the circulating water W is further adjusted by a temperature adjusting device 11 such as a cooler or a warmer. Since the temperature can be adjusted with the water bag 1, the temperature-controlled water W can be circulated in the water bag 1, and the water bag 1 can be cooled or heated according to the purpose. There is.

[Brief description of drawings]

FIG. 1 is a perspective view of a water-containing mat according to an embodiment of the present application.

FIG. 2 is an enlarged sectional view taken along the line II-II of FIG.

FIG. 3 is an enlarged sectional view taken along the line III-III of FIG. 1;

FIG. 4 is an explanatory view of a usage state of FIG.

[Explanation of symbols]

1 is a water bag, 2 is a space part, 11 is a temperature adjusting device, 12 is a circulation device, A is gas, and W is water.

Claims (3)

[Claims] 1. A water bag (1) in which water (W) is sealed is formed in a mat shape, and a gas (A) is sealed in a large area of the water bag (1) at an intermediate height position. A water-filled mat, characterized in that the formed space (2) is formed. 2. A helium gas is used as the gas (A) sealed in the space (2).
The water-filled mat described in. 3. A circulating device (1) for circulating the water (W) in the water bag (1).
The water according to claim 1 or 2, wherein the water is circulated in 2), and the circulating water (W) can be temperature-controlled by a temperature adjusting device (11) such as a cooler or a warmer. Entered mat.