JPS608767Y2 - Core material for bedding, etc. - Google Patents

Description

[Detailed explanation of the idea] The present invention relates to a novel core material for bedding, etc.

Up to now, various bedding and core materials have been proposed that are made of a plurality of rows of cylindrical bodies in contact with each other.

For example, Utility Model No. 51-30013, No. 52-391 & No. 5
2-57906, all of which are based on flexible cylindrical bodies, but because of their flexibility, the parts on which the weight is applied dent when used for a long time. At the end, there is a drawback that it curves back in an arc shape.

This is due to the use of a solid cylindrical body, but on the other hand, if a cylindrical body is used to overcome this drawback, cracks may occur especially when subjected to localized loads. It has the disadvantage that it can get stuck or break.

The present invention overcomes these drawbacks and provides a hygienic core material for bedding etc. which, in combination with a flexible member, satisfies cushioning properties and breathability suitable for sleeping.

That is, the present invention embeds a hard material smaller than the volume of the internal space inside a columnar base material made of flexible plastics having through holes at appropriate intervals, thereby connecting the internal wall surface and the hard core material. A core material for bedding, etc., which is made of a plurality of composites formed by winding a flexible and elastic member around the surface of a composite core material with a space formed therebetween, in parallel.

As the columnar base material, foam molded products such as polyvinyl chloride foam, polyethylene foam, and polystyrene foam are suitable.

As the hard core material, hard plastics such as polyvinyl chloride and ABS are preferred, but any material having a certain degree of rigidity and hardness can be used.

Preferably, the columnar base material has a substantially circular, oval, or hexagonal cross section.

When multiple columnar bodies of these shapes are connected in a row, unevenness is formed between the adjacent columnar bodies, the concave parts promote air circulation, and the convex parts exert a pleasant acupressure effect on the human body. .

The hard core material is buried so that a space is formed between the hard core material and the columnar base material.

When the hard core material and the base material are brought into close contact with each other without forming a space, air circulation through the through holes formed in the base material is hindered.

Therefore, to embed the hard core material into the base material, for example, mold a substantially cylindrical or roughly cylindrical body with a larger inner diameter than the hard core material, insert the hard core material into several drops, and then The material is buried by closing it with a closing member made of the same material as the base material, the hard core material, or another material.

As another method, for example, approximately U-shape is continuous, and each U-shape is
Two corrugated sheets with solid ends of the letter-shaped recesses are used,
A hard core material is inserted into the recess and bonded or fused so that the U-shapes are interlocked, thereby embedding the hard core material and cutting it into each round (oval) column.

The purpose of embedding is to prevent the hard core material from falling out of the base material, so it is not necessary to completely close and seal it.
Rather, it is preferable to promote ventilation with the outside air by providing pores in the closing material or the solid portions at both ends of the recess.

Since the through-holes are intended for ventilation with the inside of the base material (the hard core material insertion portion), there are no particular limitations on the size, number, and arrangement of the through-holes.

If wart-like protrusions are provided on the entire surface or a part of the base material, for example near the top of the edema, an acupressure effect can be exerted.

Suitable flexible members include cotton layers, felt, polyurethane foam, and rubber foam.

These may be used alone or in combination.

When used in combination, a combination of cotton layer or felt, polyurethane foam or rubber foam, and base material in this order gives particularly favorable results.

That is, the polyurethane foam or rubber foam in the middle part functions as a kind of foam, promotes air intake and exhaust, and improves breathability.

The cotton layer may be either natural cotton or synthetic cotton, and may be used folded to an appropriate thickness, or may be placed in a bag or quilted.
The thickness of the flexible member is not particularly limited and may be selected according to each person's preference, but it is usually about 0.5 to 2 cm.

If it is too thin, the cushioning properties will be impaired, and if it is too thick, the acupressure effect from the base material will be reduced.

The base material and the flexible member are wound together by gluing them together, binding them with a string or the like, or storing them together in a bag.

An arbitrary number of the obtained composites are connected in parallel to form a core material for bedding, etc., but depending on the number to be connected, it can be made into one piece, two pieces, three pieces, etc.

They may be connected as is) or they may be placed in an inner bag and bound with strings, etc., or they may be joined by embedding or attaching magnets, Velcro tape (registered trademark), double-sided adhesive tape, etc. to the adjacent parts of the composite. Alternatively, each composite may be housed in an independent bag and connected using Velcro (registered trademark), a zipper, a button, a hook, etc. Alternatively, a cylindrical bag large enough to accommodate the composite may be prepared in advance. A plurality of continuous uniform covers may be prepared, and the composite may be housed in the cylindrical bag.

The integrated cover is made by overlapping two layers of cloth, plastic film, etc., and sewing or fusing them at regular intervals commensurate with the size of the composite to form a number of continuous cylindrical bags.

The housing opening after housing the composite may be sewn or fused, but it is convenient to close it with a zipper, Velcro (registered trademark), etc., as it allows for free access and replacement.

According to the present invention, a composite core material consisting of a columnar base material with a space inside and a hard core material is used, and since the former provides restoring force and the latter provides strength, the base material does not warp or crack. Prevented.

Furthermore, the air permeability is enhanced by the air chamber inside the base material and the through holes connected thereto, so that the core material can always be kept in a clean state.

In particular, when a cotton layer or felt is used as a flexible member, the advantage of absorbing water and waste products from the human body is that it also has the disadvantage of retaining water and waste products. These disadvantages can be overcome by combining it with a base material.

Next, the present invention will be explained based on the drawings.

As shown in Figure 1, the approximately U-shaped cross section 1 in the length direction of the bedding
A corrugated sheet 2 made of polyethylene foam having wart-like protrusions 2 and through holes 3 at appropriate intervals near the top of the U-shape, and closed with small grooves 4 at both ends of the U-shape. Shape the pieces together.

Both ends 5 of the corrugated sheet are approximately half U-shaped.

This is so that when the two corrugated sheets are later bonded together and the concave portions are cut to form a columnar composite core material, it will be a substantially semi-circular columnar body.

By placing these approximately half-circular pillars at both ends with their flat sides facing outward, it is possible to avoid the situation where the shoulders of the bedding fall down, so pillows and covers can prevent the futon from slipping down. Furthermore, even when used as two-piece or three-piece bedding as shown in FIG. 8, it is possible to prevent dents from being formed at each joint, and the sleeping comfort and commercial value are not impaired.

After inserting a hard core material 6 made of polyvinyl chloride smaller than the recess into the U-shaped recess of the corrugated sheet, the two corrugated sheets are pasted together.

Thereafter, the concave portions of the corrugated sheet are separated to obtain a columnar composite core material in which a hard core material is embedded.

FIG. 2 shows an example in which a felt 8 is bonded to the surface of the composite core material obtained as described above via a polyurethane foam 7.

As shown in Fig. 3, in order to increase the distance between adjacent convex parts, the concave parts of the corrugated sheet were made longer and then cut, and protrusions 9 were provided on one or both sides of the columnar composite core material. An example is shown in which a cotton layer 10 is bonded to the surface of the composite core material.

FIG. 4 shows an example in which polyurethane foam 7 is interposed between the cotton layer 10 and the composite core material in FIG. 3.

In FIG. 5, ABS is installed inside a cylindrical body 11 made of polyethylene foam having a through hole 3 and wart-like protrusions 2 on the surface.
An example of a composite core material is shown in which both ends of the hard core material 6 are inserted and then closed with closing members 12 having small holes 13.

FIG. 6 shows an example in which the composite core material shown in FIG. 5 is used, and its surface is wrapped with profiled polyurethane foam 14.

FIG. 7 shows an example in which a cotton layer 10 is further wound around the surface of the composite shown in FIG.

FIG. 8 shows a cloth cover 15 in which multiple composites of the present invention are connected in rows.
An example is shown below in which the bedding is housed in three separate sheets.

Since substantially semi-circular columnar bodies are arranged at both ends of each bedding piece with their flat surfaces facing outward, no dents will be formed at the joints of the bedding pieces.

[Brief explanation of the drawing]

Figures IA and B are perspective views of a corrugated sheet, Figures 2 to 4 are schematic diagrams showing an embodiment of the core material for bedding, etc. of the present invention, Figure 5 is a schematic diagram showing an embodiment of a composite core material, Figures 6 and FIG. 7 is a schematic diagram showing an example of the core material for bedding, etc. of the present invention, and FIG. 8 is a schematic diagram showing an example of use of the core material for bedding, etc. of the present invention. 1...U-shaped cross section, 2...Wart-like projection, 3...Through hole, 4...Groove, 5...
...Both ends of the corrugated sheet, 6...Hard core material,
7...Polyurethane foam, 8...
Felt, 9... Protrusion, 10... Cotton layer body, 11... Cylindrical body, 12... Closing member, 13... Small hole, 14...Profile processed polyurethane foam, 15...
...Cloth cover.

Claims (5)

[Scope of utility model registration request] (1) A hard material smaller than the volume of the internal space is buried inside a columnar base material made of flexible plastics having through holes at appropriate intervals to connect the internal wall surface and the hard core material. A core material for bedding, etc., in which a plurality of composites formed by winding a flexible and elastic member around the surface of a composite core material with a space formed therebetween are attached in parallel. (2) The core material for bedding, etc., according to claim 1, wherein the flexible member is a cotton layer, felt, rubber foam, and/or polyurethane foam. (3) A core material for bedding, etc., according to claim (1) of the utility model registration, in which a large number of wart-like protrusions are provided on the surface of the base material. (4) A core material for bedding, etc., as set forth in claim (1) of the utility model registration, wherein a protrusion is provided on one or both sides of the base material. (5) Utility model registration claim 1, in which the base materials disposed at both ends are approximately rectangular, approximately semicircular, or approximately semicircular, with the flat surfaces facing outward. Core material for bedding, etc.