JPH0461653B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to a water bed in which water is poured into the inside of a bag-like member so that the part that comes into contact with the body is adapted to the water bed.

[Prior Art] Waterbeds of various structures that contain water inside have been known. All of these water beds are simply filled with water in a closed container with a rectangular planar shape.

For this reason, with conventional waterbeds, when a user gets on and off the waterbed or turns over, the water inside flows and the bed sways, making the bed unstable. It can make people feel anxious and prevent them from getting a good night's sleep.

In addition, in the conventional water bed mentioned above,
When you put your weight on the center when using it, water will concentrate on the periphery and your body will sink deeper into the bed. In order to prevent this, various countermeasures have been taken. For example, inside a sealed container configured in the shape of a rectangular bag, measures such as connecting multiple locations on the top and bottom surfaces with strips or string-like pieces have been adopted.
The rapid and large flow of water caused by the body's weight causes the strips and strings to be pulled rapidly, and a very large force acts on each of these pieces and the connecting parts inside the sealed container, causing If the parts are not strong enough, they will break.

Furthermore, with conventional waterbeds, regardless of the natural shape of the body, the body's weight is concentrated in the center and the body sinks, disrupting the natural state of the body and making it uncomfortable to sleep.

[Problem that the invention seeks to solve]

This invention solves the above-mentioned conventional water bed problems, such as damage to the bed due to the rapid flow of water and instability when getting on and off the bed, as well as problems in the natural state caused by concentrated and localized sinking of the body. This is an attempt to solve the problem of not being able to maintain one's body posture.

[Means for Solving the Problems] As a specific means for solving the above-mentioned problems, the present invention provides an airtight container formed of a watertight flexible sheet into a rectangular bag portion in which a sponge is placed. The container is filled with water and a mat-shaped member made of a shaped member or a continuous foam, and an air bag is provided at an appropriate lower part of the airtight container and at a position where local sinking is likely to occur to adjust the sinking. In addition, an airtight container made of a watertight flexible sheet and formed into a rectangular bag has a two-layered structure (upper and lower layers), with the upper layer filled with a mat-shaped member and water, and the lower layer with an air layer. The water bed is characterized in that the layer is divided into a plurality of independent air chambers, and air can be appropriately injected into each air chamber, and the mat-shaped member prevents local sedimentation. In addition to suppressing the sinking, the air bag and the air chamber allow for further adjustment against local sinking.

〔Example〕

Next, the present invention will be explained with reference to several illustrated embodiments. First, in the first embodiment shown in FIG. It is composed of a closed container 2 shaped like a mat or bag, and a mat-like member 3 made of open foam or spongy made of synthetic resin and housed inside the closed container 2. The flexible sheet is made of, for example, a rubber or soft synthetic resin sheet, or a composite material of these materials and cloth, and the mat-like member is made of, for example, polyurethane,
A synthetic resin such as vinyl chloride or polyethylene is foamed to have open, spongy cells, which are then formed into a mat shape to create an open foam. The closed container 2 is provided with a plurality of valves 5 for injecting or discharging water 4. An air bag 6 is disposed on the lower surface of the water bed 1 constructed in this manner at a part where the sinkage is particularly large.
The air bag in this case is flat as a whole, and is configured so that air can be appropriately injected into its interior via a suitable pipe 7 and air pump 8. Then, if necessary, further heaters 9 are arranged one on top of the other.

The second embodiment shown in FIG. 2 is different from the first embodiment only in that an air layer is integrally provided in the airtight container 2, and for ease of understanding, the same parts are the same. The explanation will be given with reference numerals. That is, the closed container 2 has two layers, upper and lower, and the air layer 10 is integrally provided at the bottom.

In the upper layer of the closed container 2, a mat-like member 3 is housed, and water 4 is injected through a valve 5, as in the first embodiment.

The inside of the lower air layer 10 is partitioned into a plurality of independent air chambers 11, and a pipe 7 and an air pump 8 are respectively attached to each air chamber so that air can be injected as appropriate. Incidentally, reference numeral 12 in the figure is a floor surface on which the water bed 1 is placed or set.

[Function] The water bed of the present invention having the above-described structure is made into a bed by setting the airtight container 2 at a predetermined position and then injecting a predetermined amount of water into the container via the valve 5. Even if the user steps on it or turns over on it, the mat-shaped member 3 made of open foam that is housed inside acts as a resistance to the flow of water. Since the deformation is slow, the closed container 2 does not deform immediately or the water inside does not oscillate forever, unlike when it is simply filled with water, and the container 2 deforms slowly and has excellent stability. Therefore, when you try to get on or off the bed, you will not become unstable, and even if you move your body while lying on the bed, there will be no movement, so you will not be able to get a good night's sleep. Never.

In particular, the open foam mat member 3 inside the airtight container 2 retains water to prevent water from moving excessively to the surrounding area, and the mat member 3 supports the body from sinking. , the overall subsidence can be reduced. Furthermore, differences in subsidence will occur due to differences in the contact pressure of various parts of the body against the bed, but in particular for local subsidence, the air bag 6 or the corresponding air chamber 11 should be filled with appropriate air. By injecting it into the body, it is possible to suppress the sinking of the body, thereby reducing the disruption of the natural state of the body's posture.

Furthermore, the use of the heater 9 installed at the bottom of the waterbed is used to heat the water in the sealed container 2 to an appropriate temperature and maintain it at the optimum temperature, especially in winter. It performs its function.

〔Effect of the invention〕

As explained above, the waterbed according to the present invention has a mat-like material made of a spongy material or an open foam material placed inside a closed container made of a flexible sheet having watertight properties and formed into a rectangular bag portion. Since the material and water are filled in the structure, the fluidity of the water filled inside the airtight container is slowed down by the mat-like material, which increases the sense of stability when getting on and off the bed, and reduces overall sway. This has the excellent effect of eliminating the problem of having a good night's sleep.

Furthermore, an air bag is provided on the bottom surface of the airtight container, or the airtight container is made into two layers, upper and lower, with the lower layer forming an air layer having a plurality of independent air chambers, so that the airtight container can be placed on the bed using a mat-like member. It supports the added load and reduces the overall and local sinking of the bed, and the air bag or air chamber further suppresses local sinking, thereby preventing significant and concentrated sinking as a whole. This also has the excellent effect of making your sleep more comfortable.

Furthermore, the mat-like member can suppress the rapid flow of water, thereby providing an excellent effect of preventing damage to the closed container.

[Brief explanation of the drawing]

FIG. 1 is a schematic longitudinal sectional side view of a water bed according to a first embodiment of the present invention, and FIG. 2 is a schematic longitudinal sectional side view of a water bed according to a second embodiment of the invention. 1...Water bed, 2...Airtight container, 3
...Mine-shaped member, 4...Water, 5...Valve, 6
...Air chamber, 7...Pipe, 8...Air pump, 9...Heater, 10...Air layer, 11...
Air chamber, 12...floor surface.

Claims (1)

[Scope of Claims] 1 A sealed container made of a watertight flexible sheet and formed into a rectangular bag is filled with water and a mat-like member made of a spongy member or an open foam. . A waterbed, characterized in that an air bag for adjusting sinking is provided at an appropriate lower part of the airtight container and at a position where local sinking is likely to occur. 2 A sealed container made of a flexible sheet with watertightness and shaped like a rectangular bag has a two-layer structure, upper and lower.
The upper stage is filled with a pine-like member and water, the lower stage is an air layer, and the air layer is divided into a plurality of independent air chambers, so that air can be injected into each air chamber as appropriate. Waterbed. 3. The water bed according to either of the above items 1 or 2, characterized in that a heater capable of temperature adjustment is disposed between the airtight container and the floor surface.