JPH0675257U - Water bed - Google Patents

Abstract

(57) [Abstract] [Purpose] To provide a water bed that prevents the movement of the water bag within the bed base during use and provides an ideal sleeping comfort. In a water bed in which a plurality of independent water bags are housed and mounted inside a base body of a bed having a frame body at a peripheral portion thereof, a soft material is formed at a rear contact portion of the bag. A water bed with a bag movement prevention material intervening.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a water bed.

[0002]

[Prior art]

 Although water beds are mainly used for medical purposes, they are said to be ideal as ideal bedding due to their functions.In recent years, the water beds have become widely used in general households as the living environment has improved. There are many different water beds used up to large size for people.

A water bed is a water bag formed by sealing a flexible sheet material such as a polyvinyl chloride sheet or a rubberized cloth into a sealed bag, and enclosing an appropriate amount of water, a liquid such as a gel, and the like. The buoyancy, cushioning effect, and even dispersion of body pressure are utilized, but the water bed is prone to sink and concentrate when the load is applied intensively. This requires a considerable amount of bed thickness, which inevitably increases the amount of liquid to be enclosed and makes the bed heavier, and special consideration needs to be given to equipment such as bed bases and the installation location. Not only that, but there was also the drawback that the rocking of the bed due to the movement of liquid increased as the amount of liquid increased. Therefore, many attempts have been made to solve the problems of weight increase, rocking, bottoming, and the like.

[0004]

[Problems to be solved by the device]

 Among the waterbeds proposed to solve these problems, the waterbed having a plurality of independent waterbags (Japanese Utility Model Publication No. 59-5409) has a small waterbag, and is therefore swayable. Even if it moves, it disappears in a short time and the movement range of water is narrow and small, so it is possible to prevent unnatural depression of the body and bottoming out, and it is easy to handle because the bags are individually separable and independent. Although there are advantages, since the body is supported by multiple bags, the body pressure acting on the bags is different, so the degree of deformation is also different.Especially when vertically oriented bags are placed side by side, the bag cross section is different. It becomes elliptical and the bag moves along with the body movement such as turning over in the bed base, and one bag gets on top of the other bag. Cause condition, were those bad feeling.

In addition, in a two-person water bed equipped with two water bags, the rocking of water caused by one user not only adversely affects the sleep of the other user. In particular, when the weight difference between users is large, the phenomenon that the bag of a light user gets under the bag of a heavy user is seen, and the movement of water caused by this movement of the body , The problem of mutual movement of water bags was more noticeable than a single bed with multiple water bags.

The present invention has been devised in view of these problems, and provides a water bed that prevents movement of a water bag in a bed base during use and provides ideal sleeping comfort.

[0007]

[Means for Solving the Problems]

 The water bed of the present invention is a water bed in which a plurality of independent water bags are stored and mounted inside a bed base body provided with a frame body at the peripheral portion, and the mutual contact portions of the bags are The present invention is characterized in that a softly formed bag movement preventing material is interposed.

The base of the water bed of the present invention is an upper opening box shape formed of synthetic resin foam such as polyurethane foam, wood, metal material, FRP, etc. and having a frame body at the peripheral edge, and is conventionally known. It is a bed base. A plurality of water bags are arranged side by side in close contact with each other in a space surrounded by the frame of the bed base.

The water bag is formed of a watertight flexible sheet material such as a polyvinyl chloride sheet in the form of a closed bag having an inlet / outlet port, and water, a gel-like substance, etc. are enclosed therein. The plurality of water bags may have different shapes and sizes, or may have the same shape, but at least have the same thickness. Further, glass fiber, synthetic fiber, synthetic resin foam or the like may be enclosed together with water, and a conventionally known water bag can be used.

The bag movement preventing material is interposed between the contact surfaces of the water bags to prevent the bags from contacting each other or restricting the contact area to a small value. It is not necessary to interpose the contact portion, and it may be at least a portion that efficiently regulates the movement of the water bag. As the bag movement preventing material, soft synthetic resin foam such as soft polyurethane foam and polyethylene foam, polyester, nylon, urethane, tetron, hemp, cotton, wool, palm lock, glass fiber, etc. A synthetic resin sheet having the above-mentioned synthetic resin foam or non-woven fabric as a core material, a covering body or a laminated body made of a woven cloth, or an air bag body made of a polyvinyl chloride sheet, a rubber cloth or the like can be used. It is desirable that the lower end of the bag movement preventing material is fixed to the bed base or the liner, and that the upper end of the bag movement preventing material is erected at the bag contact portion so as not to project from the upper surface of the water bag.

[0011]

【Example】

 As an embodiment of the present invention, a two-person water bed equipped with two water bags will be described below as an example. FIG. 1 is a perspective view showing a waterbed with a bed cover (not shown) removed, and FIG. 2 is a sectional view taken along the line AA.

The water bed 1 includes a bed base 3 provided with a frame body 31 on a peripheral edge thereof, a bag-like liner 4 having an open upper portion and having the same shape as the inner space of the bed base, and two water bags 21, 22 and 22. Each of the bags 21 and 22 is a rectangular parallelepiped closed bag having a suction / drainage port formed of a polyvinyl chloride sheet, in which a predetermined amount of water is sealed, and the frame 31 and the bottom of the bed base 3 are provided. They are accommodated and placed in parallel in close contact with each other so as to support one person by one bag via the liner 4 mounted along the inner surface of 32.

The liner 4 is made of a polyvinyl chloride sheet and is formed in the shape of an upper opening bag body composed of a bottom portion 41 and a peripheral edge portion 42. The peripheral edge portion 42 extends along the frame body 31 in the bed base body 3. A hard synthetic resin sheet, cardboard, etc. are used as the core material so as to be self-supporting. The peripheral portion 42 may be adhered to the frame body 31 without using a core material, or may be fixed by a surface fastener or the like, or the frame body 31 may be wrapped.

The bag movement preventing material 5 is interposed between the surfaces of the contact portions of the bags 21 and 22 and regulates the contact area between them to be small. The preventive material 5 is formed in a shape in which a flexible polyurethane foam is used as a core material 51 and covered with a polyvinyl chloride vinyl sheet, and a lower end portion b is joined and fixed so as to stand on the bottom portion 41 of the liner 4. The size of the upper end a is such that the upper end a does not protrude from the upper surfaces of the bags 21 and 22 and the surface area smaller than the contact area between the bags, and the thickness of the upper end a is 5 to 10 mm. Increasing the thickness of the upper end portion a is not preferable because it makes it easier to feel a foreign substance. The upper end a is located 10 to 50 mm below the upper surfaces of the bags 21 and 22, but if the upper end a protrudes from the upper surfaces of the bags 21 and 22, it will be easier to touch the body by turning over and feel a foreign object. The bed feels bad.

In this example, the movement preventing member 5 has the same thickness at both the upper end portion a and the lower end portion b, but the lower end portion b may be formed thick to have a trapezoidal cross section. The trapezoidal shape not only stabilizes the preventive material 5, but also reduces the amount of water contained in the bag and increases the effect of preventing water from shaking. Of course, the inner surface of the frame 31 may also be inclined.

Further, the surfaces of the contact portions of the bags 21 and 22 or the surface of the bag movement preventing material 5 are coated with a synthetic resin such as silicone, polyester, epoxy, polyurethane, polyamide, fluorine or the like, wax, wax or the like. Sheet, woven cloth, non-woven cloth, or a laminated body of the above synthetic resins, or talc, silicic acid, silica, starch, calcium carbonate, or other powder or granules on the contact surface. It may be attached. In this way, the frictional resistance between the bags 21 and 22 and the bag movement preventing member 5 is reduced, and the movement of the bags 21 and 22 within the bed base 3 can be prevented more effectively. The same effect can be obtained by using a sheet material having an embossed surface of the contact portions of the bags 21 and 22 or the surface of the bag movement preventing material 5.

FIG. 3 shows a water bed 1 in which a bag movement preventing material 6 is fixed to the bottom portion 32 of the bed base 3 as another embodiment. The bag movement preventing member 6 made of a plate-shaped soft polyurethane foam has the lower end portion c fixed to the bag contacting position of the bottom portion 32 of the bed base 3, and is formed in the same shape and size as in the above embodiment. I am doing it. The means for fixing the preventive material 6 may be any of adhesion, sewing, welding, fixing by a surface fastener or the like, and when it is formed of the same material as the bed base 32, it may be integrally formed.

The liner 4 is formed of a polyvinyl chloride sheet in the shape of an upper opening bag and is attached to the bed base 3 so as to cover the preventive material 6, as in the above-described embodiment. The bottom portion 41 of the liner 4 is preferably formed in a convex shape so as to extend along the prevention material 6.

FIG. 4 and FIG. 5 show still another embodiment, and are horizontal and vertical cross-sectional views of a water bed 1 in which an air-sac body filled with air is used as a bag movement preventing member 7.

The bag movement preventing member 7 is provided with a lateral air chamber 71 which is an upper end thereof, three vertical air chambers 72 formed between the lateral air chamber 71 and the liner bottom 42, and a film provided therebetween. It is composed of a sheet material 73. The horizontal air chamber 71 and the vertical air chamber 72 are closed cylindrical bags having a suction / drainage port (not shown) formed by welding a polyvinyl chloride sheet, and the horizontal air chamber 71 is parallel to the upper surfaces of the bags 21 and 22. The vertical air chamber 72, which is located below the vertical air chamber 72, extends over the horizontal air chamber 71 and the liner bottom 42. The sheet material 73 is a polyvinyl chloride sheet, and is welded in a film shape between the horizontal air chamber 71, the vertical air chamber 72, and the liner bottom 42. The lateral air chamber 71 and the vertical air chamber 72 may be one air chamber that communicates with each other, or the entire bag movement preventing member 7 may be used as the air chamber without providing the sheet material 73.

The lateral air chamber 71 does not need to be provided with a vertical air chamber as a column because a buoyancy force that pushes up the lateral air chamber 71 due to the difference in specific gravity between the lateral air chamber 71 and the bags 21 and 22 is applied. From the standpoint of ease of assembly and the like, it is preferable to provide the lateral air chamber 71 at least at both left and right ends.

The lateral air chamber 71 may have any strength as long as the sheet material 73 can be stretched, and the cross-sectional diameter, enclosed air pressure, etc. are not limited, but if the air pressure is increased or the cross-sectional diameter is increased, the bed will be It is not preferable because it is easy to feel a foreign body. The cross-sectional diameter is preferably about 50 to 100 mm.

The horizontal air chamber 71, the vertical air chamber 72, and the sheet material 73 are made of a polyvinyl chloride sheet, and the bag movement preventing material 7 is formed by welder welding, but the material is airtight and flexible. However, the processing method may be either welding or sewing. Further, the lateral air chamber 71, the vertical air chamber 72, or the entire bag movement preventing material 7 formed as a single air chamber may be filled with open-celled flexible polyurethane foam, synthetic fiber or the like as a core material. The use of a core material is preferable in terms of shape retention and the like.

[0024]

[Effect of device]

 In the water bed of the present invention, since the bag movement preventing material is interposed between the water bags, the bags do not come into contact with each other or the contact area is regulated to be small, and the movement and displacement of one bag reach the other bag due to the friction of each other. The movement of the bag within the bed base can be prevented, and a very comfortable feeling can be obtained. In addition, since the movement preventing material is formed of a soft material, the bed does not feel foreign matter and has an effect of absorbing the shaking of water.

If a waterbed liner having a lower end portion of the bag movement preventing material fixed therein is used, the bag movement preventing material does not move, so that the movement of the bag can be efficiently prevented. Further, since the liner is formed of a flexible sheet material, there is no risk of damaging the bag, it is easy to manufacture, and it is easy to fold and convenient to store and store.

[Brief description of drawings]

FIG. 1 is a perspective view of a waterbed including two water bags according to an embodiment of the present invention.

FIG. 2 is a sectional view taken along line AA of FIG.

FIG. 3 is a cross-sectional view showing another embodiment of the present invention.

FIG. 4 is a cross-sectional view showing another embodiment of the present invention.

FIG. 5 is a vertical sectional view showing another embodiment of the present invention.

FIG. 6 is a cross-sectional view showing a water bag deformation state of a conventional water bed.

FIG. 7 is a cross-sectional view showing a deformed state of a water bag of a conventional water bed.

[Explanation of symbols]

 1 ... Water bed 2 ... Water bag 3 ... Bed base 4 ... Liner 5, 6, 7 ... Bag movement prevention material X ... Contact part

Claims (2)

[Scope of utility model registration request] 1. A water bed in which a plurality of independent water bags are accommodated and mounted inside a bed base body having a frame body at the peripheral edge thereof, and the mutual contact portions of the bags are formed of a soft material. Water bed with the intervening bag movement prevention material. 2. A water bag mutual contacting position on the upper surface of the upper opening bag bottom formed of a watertight flexible sheet material,
2. The water bed according to claim 1, further comprising a liner having a lower end portion of a bag movement preventing material formed by coating a soft core material with a flexible sheet material, the liner fixed to the lower end portion.