JPH0576439A - Water mat and method of manufacturing the same - Google Patents

Abstract

PURPOSE:To facilitate the mass production of tough products with cost reduction by joining at least parts of upper and lower sheets with a hanging member having a rugged form like that of arranged egg receptacles. CONSTITUTION:A rugged hanging member 3 having the ruggedness like that of arranged egg receptacles is interposed between upper and lower sheets 1, 2. Projecting parts 4 of the rugged hanging member 3 are joined with the upper sheet 1. Also, recessed parts 5 (forming projections toward the lower part) of the rugged hanging member 3 are joined with the lower sheet 2 to form a water mat 6. The upper and lower sheets 1, 2 and rugged hanging member 3 use a soft synthetic resin sheet, for example soft vinyl chloride resin or synthetic rubber sheet. The water mat 6 is of a air-tight bag provided with a water feeding and drain valve 7 and vent hole 8. Thus, the number of parts and man-hours is reduced to permit the mass production with cost reduction.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a water bed using a water mat and a method for producing the water mat. )
The present invention relates to a method capable of mass-producing a lightweight and stable water mat by using a hanging member having unevenness.

[0002]

2. Description of the Related Art As a water bed, a water bed is conventionally used which uses a water mat formed by enclosing water or air in a bag-shaped material such as rubber or soft vinyl chloride resin. Not only is it a heavy weight of 200 kg even in a single bed, but the water inside flows freely and is extremely unstable, so the water mat is violently when the user gets on and off the bed, turns over on the bed, etc. There was a major downside. It is also pointed out that the body of the user sinks deeply into the central part of the water mat. Further above 200K
When a large amount of water of g is heated to an arbitrary temperature, for example, body temperature (36 ° C), not only a large amount of heat is required,
There is a big drawback of having a long time.

On the other hand, various ideas have been made to make the water mat thin, lightweight and stable. For example, Japanese Unexamined Patent Publication No. 55-16635, which uses abacus ball-shaped hanging cloth for a water mat, Japanese Unexamined Patent Publication No. 63-187450, which uses a plurality of hanging bags, and Unexamined Japanese Utility Model Sho 61, in which hanging cloth is provided in the longitudinal direction. No. 167857. In addition, as another known method, there is also known a method in which upper and lower sheets are connected by a plurality of thread-shaped, string-shaped, or strip-shaped pieces, but during use, a large impact due to movement of weight propagates to the entire water mat. , The suspension members will be pulled suddenly with a strong force at the joints, and if the materials do not have sufficient strength and joint strength, the connecting pieces can easily be cut or peeled off, destroying the structure. is there.

Also known are water mats filled with open-cell foams, those disclosed in JP-A-63-125214, and water-absorbent resins. These are known. It merely slows down the movement of water in the water mat and does not solve the above-mentioned drawbacks of the prior art without the combination with an appropriate suspension member.

[0005]

SUMMARY OF THE INVENTION The problem to be solved by the present invention is to eliminate the above-mentioned drawbacks of the water mat which has conventionally constituted such a water bed. More specifically, the present invention aims to develop a method for making a suspension member that constitutes a water mat simple and strong, and easy to assemble and mass-produced.

[0006]

This problem can be solved by joining the upper and lower sheets with a hanging member (hereinafter referred to as an uneven hanging member) having a concave and convex shape like an egg container that is continuously provided from the sheets.

[0007]

The function and structure of the present invention will be described in detail with reference to the following embodiments. In the first embodiment, as shown in FIG. 1, an uneven suspension member 3 is provided between the upper sheet 1 and the lower sheet 2, the convex portion 4 of the uneven suspension member 3 and the upper sheet 1 are joined together, and the concave portion 5 is formed.
(Protruding toward the bottom) and lower sheet 2
Join with.

As the upper and lower sheets and the uneven suspension members shown here, soft synthetic resin sheets, for example, those using soft vinyl chloride resin, or synthetic rubber type sheets are used.

These sheets are preferably reinforced and composited with cloth or fibers. The water mat 6 is airtightly formed into a bag shape, and is provided with a valve 7 for injecting or discharging water. The uneven hanging member 3 is provided with a through hole 8 as needed so that the filled water can be moved.

In the second embodiment, as shown in FIG. 2, a hole 12 is formed in the upper sheet 11 of the water mat of the first embodiment, and a soft synthetic resin open-cell body (sponge) 14 is formed between the upper sheet 11 and the upper sheet 13. It is filled.

In the third embodiment, as shown in FIG. 3, the uneven hanging member 16 is set low only in a required portion of the water mat 15, and the sponge 17 of the second embodiment is placed in that portion.

In the fourth embodiment, as shown in FIG. 4, uneven suspension members are provided in two layers, an upper layer 18 and a lower layer 19, and both layers may be the same, but the upper layer 18 in contact with the body has a fine pitch. The uneven hanging member 20 is used, and the lower layer 19 uses the uneven hanging member 20 having a coarse pitch.

The upper layer 18 and the lower layer 19 may be provided with holes in the sheets which are in contact with each other so that the water in the inside can be moved, or they may be independent from each other.

Next, a method of manufacturing the water mat of the present invention will be described. First, as shown in FIG. 5, the uneven hanging member, which is the gist of the present invention, is a mold 22 that is continuously arranged in a container of chicken eggs.
The soft vinyl chloride resin sheet 23 is stretch-formed on the dotted line 24 by vacuum forming or pressure forming with or without heating.

When the sheet is made of synthetic rubber, the rubber material 25 is heated and vulcanized while being compressed by the upper mold 26 and the lower mold 27 as shown in FIG. It is preferable that a reinforcing material such as a cloth or a fibrous reinforcing material is intercalated or mixed in these convex / concave members to strengthen the convex / concave members, which can significantly reduce the weight of the convex / concave members. Next, as shown in FIG. 7, the uneven hanging member 29 is placed on the sheet 28, and the pushing tool 3
At 0, both sheets are joined by an appropriate means such as an adhesive or high frequency heating. The joined sheet 28 and the uneven suspension member 29 are pressed and bonded or weld-bonded to the sheet 33 and the uneven suspension member 29 by the pushing tool 32 through the hole 31 of the sheet 28 as shown in FIG. The water mat with is completed.

The hole 31 through which the pushing tool 32 is passed may be a round hole, but a slit-like shape is preferable, and if necessary, a sheet of the same quality or the like may be pasted to close the hole 31 to form a sealed structure. If the hole 31 of the pusher 32 is not provided in the sheet 28,
It is preferable to use a comb-shaped pressing member 36 in which pressing members 35 as shown in FIG.

That is, as shown in FIG. 10, the comb-shaped pushing member 36 is inserted into the gap 34 of the uneven hanging member 29, and the contact plates 37 and 3 are inserted.
8, the sheet 33 and the uneven hanging member 29 are pressed and joined, and then the comb-shaped pressing member 36 is pushed off.

The sponge used in the present invention is preferably a sponge-like continuous foam obtained by foaming a synthetic resin such as polyurethane, polyvinyl chloride, polyethylene, etc., which is used by being processed into a sheet and filled with water. To do.

In the present invention, the plasticizer is usually added to the polyvinyl chloride resin in an amount of 10 to 20 parts by weight, and particularly preferably 100 parts by weight of the polyvinyl chloride resin and 150 parts of the plasticizer are added.
It is also possible to melt mix 0 parts and a little stabilizer to form a jelly-like molded body, which can be housed in a sheet-like container for use.

Further, in the present invention, a super water absorbent resin, for example, a copolymer of acrylic acid and vinyl alcohol can be used. It is spherical and absorbs water to become large, and functions like a capsule containing water, which is a preferred embodiment of the present invention. In addition, superabsorbent fibers, for example, acrylonitrile-based fibers, which have been subjected to water absorption processing, have a diameter 12 times larger when brought into contact with water, which is also preferable.

The amount and size of the uneven suspension member used in the present invention can be appropriately adjusted according to the purpose of use. For example, when the water mat is single,
5 cm high, 90 cm wide, 200 cm long with 9 water
Assuming 0 kg, one example of the dimensions of the uneven suspension member is a height of 5
With a 0 mm pitch of 50 mm and a top size of about 20 mm width, there are 720 convex portions, that is, 720 cylindrical suspension members.

The size of the holes is 3 to 15 mm, preferably 5
It is preferably about 10 mm, and its position is preferably provided in a portion where the upper and lower sheets are hung and pulled, that is, a portion other than the line connecting the tops of the uneven hanging members.

It is possible to easily inject and discharge water and to move water through the hole, and also to adjust the water pressure of the water mat.

The shape of the unevenness of the hanging member includes various shapes such as an arc, a circle, a truncated cone or a truncated pyramid, all of which can be easily made from a flat sheet.

As the reinforcing material, known short fibers such as nylon and polyester, for example, those having a thickness of 0.05 mm, 1 mm, preferably 0.3 mm, a length of 2-40 mm, preferably a length of 30 mm are used as the flat plate. It may be dispersed in a sheet-like sheet, or may be a cloth-like body made of known fibers such as nylon and polyester. Preferably used as a coarse, highly stretchable fabric reinforcement of weft and warp yarns (so that a tensile force acts in the direction of elongation of the fibers), which is placed on an uneven mold or preformed and then A flat sheet may be placed and joined to one body for composite reinforcement.

[0026]

As described above, according to the present invention, since a hanging member having a concave and convex shape like an egg container, which can continuously connect even one sheet at a time, is provided and joined between the upper and lower sheets,
Unstable and cumbersome by using hanging cloth, hanging thread, hanging string, hanging band, cylindrical hanging member, wavy hanging member, etc. as in the past, and it is uniform and reliable without requiring many steps. A water mat with excellent joint strength can be produced extremely easily and inexpensively. In addition, since the uneven hanging member can be freely designed according to the purpose, a lightweight and high-performance water bed can be provided.

In the examples, a typical structure has been described for convenience of explanation, but the material used in the conventionally known water bed is not limited to this, that is, a sheet, a sponge, a water absorbent resin, It goes without saying that the fiber sheet and others can be used, and the structure thereof can also be used in combination.

[0028]

[Brief description of drawings]

[0029]

FIG. 1 shows a preferred embodiment of the present invention.

[0030]

FIG. 2 shows a preferred embodiment of the present invention.

[0031]

FIG. 3 shows a preferred embodiment of the present invention.

[0032]

FIG. 4 shows a preferred embodiment of the present invention.

[0033]

FIG. 5 is an explanatory view for explaining the method for producing the water mat of the present invention.

[0034]

FIG. 6 is an explanatory diagram for explaining a method for producing the water mat of the present invention.

[0035]

FIG. 7 is an explanatory diagram for explaining a method for producing the water mat of the present invention.

[0036]

FIG. 8 is an explanatory diagram for explaining a method for producing the water mat of the present invention.

[0037]

FIG. 9 is an explanatory diagram for explaining a method for producing the water mat of the present invention.

[0038]

FIG. 10 is an explanatory diagram for explaining the method for producing the water mat of the present invention. 1 ………… Upper seat 2 ………… Lower seat 3 ………… Uneven hanging member 4 ………… Convex 5 ………… Concave 6 ………… Water mat 7 ………… Valve 8… ……… Through hole

11 ... Upper sheet 12 ......... Hole 13 ......... Upper sheet 14 ......... Sponge 15 ......... Water matte 16 ......... Concave / convex hanging member 17 ......... Sponge 18 ......... Upper layer 19 ... …Underlayer

20 ......... Concavo-convex hanging member 22 ... Mold 23 ... Resin sheet 24 ... Dotted line 25 ... Rubber material 26 ... Upper mold 27 ... Lower mold 28 ... Sheet 29 ……… Concave hanging member

30 ......... Pressing tool 31 ..... hole 32 .... Pressing tool 33 .... Sheet 35 ..... Pressing tool 36 .... Comb-like pressing member 37 .... Abutting plate 38 .... Abutting Board

Claims (5)

[Claims] 1. A water mat comprising one or more sheets, wherein at least a part of the upper and lower sheets are joined by a hanging member having consecutively formed egg pack case-shaped irregularities. 2. The water mat according to claim 1, wherein the suspension member is reinforced with a cloth-like or fibrous reinforcing material. 3. The water mat according to claim 1, wherein the suspension member is provided with through holes as appropriate. 4. The water mat according to claim 1, wherein at least one sheet is provided with a hole corresponding to or not corresponding to the hanging member, and the hole is combined with another water mat or an open cell soft foam. .. 5. At least one sheet is vacuum-formed, embossed or vulcanized to form a hanging member having a rugged egg-pack case shape, which is vertically moved by a pressing tool corresponding to the ruggedness. A method for producing a water mat, which comprises adhering or welding to each sheet.