JPH06245850A - Mattress - Google Patents

Abstract

PURPOSE:To provide a mattress capable of rendering a comfortable feeling in bed without making use of a spring. CONSTITUTION:A mattress is formed by a plurality of layers of cushion materials consisting of polyester fibers united together by heat welding, the cushion materials including: an intermediate soft cushion material 6; hard cushion materials 5 and 7 respectively united to the upper and the lower surfaces of the intermediate soft cushion material 6; and an external soft cushion materials 4 and 8 respectively united to the outer surfaces of the hard cushion materials 5 and 7.

Description

Detailed Description of the Invention

[0001]

FIELD OF THE INVENTION This invention relates to mattresses, and more particularly to mattresses that do not use rigid springs.

[0002]

2. Description of the Related Art Conventionally, various mattresses having appropriate elasticity and hardness have been proposed. A spring mattress with multiple springs in the center of the mattress provides a comfortable elasticity to the human body at bedtime, but it is not only costly to manufacture but the disposal of the spring mattress is becoming a social issue. .

[0003]

In view of this point, a mattress made of urethane cushion material without using a spring is also known. Although a mattress made of cushioning material can be manufactured at low cost, it is too soft and the human body sinks into the cushioning material, causing a feeling of bottom-bottoming and making it uncomfortable to sleep. In particular, since no air passage is formed between the human body and the cushioning material, the human body and the cushioning material are tightly attached to each other, and there is a problem in that it becomes damp and difficult to sleep in the summer. Also, the cushioning material gradually deteriorated and became harder, and the sleeping sensation gradually became uncomfortable.

[0004] Therefore, the present invention has a technical problem to provide a mattress which can provide comfortable sleeping without using a spring.

[0005]

[Constitution of the invention]

[0006]

The technical solution taken in the present invention to solve the above problems is a mattress formed by laminating a plurality of cushion materials made of synthetic fibers bonded to each other by heat welding. The cushion material includes an intermediate soft cushion material, a first hard cushion material joined to an upper surface of the intermediate soft cushion material, a second hard cushion material joined to a lower surface of the intermediate soft cushion material, and (1) A mattress comprising an outer soft cushion material joined to the upper surface of a hard cushion material.

[0007]

In the mattress of the above construction, when lying on the mattress, the load-applied portion of the outer soft cushion material is greatly contracted in the vertical direction and at the same time curved downward. Then, a load is also applied to the hard cushion material located on the lower surface of the outer soft cushion material through the outer soft cushion material, but since the hard cushion material is hard, it does not shrink like the outer soft cushion material. Bends and bends in the direction. This flexure also applies a load to the intermediate soft cushion material, and the intermediate soft cushion material contracts in the vertical direction and at the same time curves downward. Further, the hard cushion material located on the lower surface of the intermediate soft cushion material is bent and bent downward by the load applied from above, and the outer soft cushion material located at the lowermost end is contracted in the vertical direction.

Thus, the user lying on the mattress is provided with a soft sleeping comfort by the outermost soft cushioning material on the uppermost surface, and the hard cushioning material which does not greatly shrink like the soft cushioning material is used for the human body. Sinking into the mattress is prevented. Further, at the time of turning over, etc., the hard cushion material is lifted upward by the restoring force of the outermost soft cushion material and the intermediate soft cushion material at the lowermost end, and the user is provided with a comfortable elasticity like a rigid spring.

[0009]

【Example】

(Embodiment) An embodiment of the present invention will be described with reference to FIGS. The mattress 1 of this embodiment has a cushion material made of polyester fibers bonded to each other by heat welding.
It is composed of a cushion body 2 (FIG. 2) that is laminated, and an exterior body 3 that covers the cushion body 2. The exterior body 3 is a sheet 3a made of polyester fiber.
Similarly, the upper and lower sheets 3a made of polyester fiber
The edge tape 3b is used to sew the edges of the tape.

Next, the cushion body 2 which is a feature of the present invention
Will be described with reference to FIG. Cushion body 2
Is laminated in order from the upper side with the outer soft cushion material 4, the hard cushion material 5, the intermediate soft cushion material 6, the hard cushion material 7, and the outer soft cushion material 8, and the surfaces contacting each other are made of a polyester adhesive material. It is glued. The outer and middle soft cushion materials 4, 6, 8 are
It is made of the same soft cushion material except that it is laminated at different places, and has a soft elasticity.
Its specific gravity is 0.025 g / cm ³ and 3.5c in the vertical direction.
It has a thickness of m. Further, the hard cushion materials 5 and 7 are also substantially the same hard cushion material, except that they are located on the upper surface or the lower surface of the intermediate soft cushion material 6. The hard cushion material is much harder than the soft cushion material, and the polyester fibers constituting the hard cushion material are entwined more closely than the soft cushion material. Incidentally, the specific gravity of the hard cushion material is 0.035 g / cm ³ , and in the present embodiment, it has a thickness of 2 cm in the longitudinal direction, and is formed thinner than the outer and intermediate soft cushion materials 4, 6, 8. .

Next, the operation of this embodiment will be described with reference to FIG. When a load is applied from above the cushion body 2, the outer soft cushion material 4 receives the load, and because it is soft, it is crushed in the longitudinal direction and simultaneously bends downward. The hard cushion material 5 receives a load from above via the outer soft cushion material 4, but since it is hard, it is hardly crushed in the vertical direction and contracts, and only bends downward due to the load. The intermediate soft cushion material 6 is crushed in the vertical direction by the load from the hard cushion material 5 which is curved downward, and is curved slightly downward. Since the intermediate soft cushion material 6 has some load absorbed by the outer soft cushion material 4 and the hard cushion material 5 on the upper surface side, the intermediate soft cushion material 6 does not receive a load enough to apply the outer soft cushion material 4. When the intermediate soft cushion material 6 is curved downward, the hard cushion material 7 is curved downward. Hard cushion material 7 is also hard cushion material 5
As with the hard type, it is hardly compressed and contracted in the vertical direction, but it bends downward. In response to this, the outer soft cushion material 8 is crushed in the vertical direction.

In the case of the outer soft cushion material 8, since the load is further absorbed, the load applied to the outer soft cushion material 8 is smaller than that applied to the intermediate soft cushion material.

In this way, the load applied from above the cushion material 2 is gradually absorbed by each cushion material, and comfortable elasticity is supplied to the user lying on the mattress 1. In particular, in the case of the present embodiment, when the hard cushion materials 5 and 7 receive a load applied from above, they are bent downward but are hard so that they are hardly crushed and firmly support the human body. There is. Therefore,
The human body does not sink into the mattress 1 and it becomes possible to make the sleeping comfort extremely comfortable. In addition, the load applied to the outer and middle soft cushion materials 4 and 6 is
Since it is absorbed by 7, the load is not applied to the outer and intermediate soft cushioning materials 4 and 6, and it is unlikely to cause fatigue even after long-term use. Furthermore, when the load applied on the mattress 1 is released, such as when the user rolls over, the intermediate soft cushion material 6 and the outer soft cushion material 8 that have been contracted and bent in the longitudinal direction have elastic properties. The hard cushion materials 5 and 7 are lifted upward by the restoring force of. Therefore, the mattress 1 having elasticity like a spring can be obtained.

Further, in this embodiment, each of the cushion members 4 to 4 is used.
8 as well as an adhesive agent for adhering each of the cushion members 4 to 8, the sheets 3a and the edge tape 3 constituting the exterior body
Since all up to b are made of a polyester-based substance, the entire mattress 1 can be recycled by using a recycling device at the time of disposal, and the raw materials can be recycled. In addition, since the polyester-based material does not generate a toxic gas when incinerated, the mattress can be made environmentally friendly also from this point.

Further, since the hard cushion materials 5 and 7 are formed thinner than the outer and middle soft cushion materials 4, 6 and 8, the specific gravity of the cushion body 2 as a whole can be lowered and a load is applied. In this case, the load can be comfortably absorbed and curved downward. In this embodiment, the cushion materials are joined by the adhesive material, but the present invention is not limited to this, and the joining may be made by heat welding, for example.

(Comparative Example) Next, in order to clarify the usefulness of the mattress of this embodiment described above, a mattress having a three-layer structure manufactured as a comparative example will be described. Figure 4
Shows a cushion body 12 of a mattress of a comparative example. The cushion body 12 has a sandwich structure in which a hard cushion material 15 is sandwiched between a soft cushion material 14 and a soft cushion material 16. Specific gravity of the hard cushion material 15,
The specific gravities of the soft cushion materials 14 and 16 are the same as those in the above-described embodiment of the present invention, and are 0.035 g / cm ³ , and 0.
It is 025 g / cm ³ . Also, the soft cushion material 1
The thickness of 4 and 16 is 3.5 cm, and the thickness of the hard cushion material 15 is 6 cm.

When a load is applied from above the cushion body 12, the soft cushion material 14 located on the uppermost surface contracts downward, but the hard cushion material 15 located on the lower surface is thick, so the hard cushion material 15 extends downward. It hardly bends. As described above, since the load received by the soft cushion material 14 is hardly absorbed by the hard cushion material 15, only the elasticity of the soft cushion material 14 can be provided to the user as the entire cushion body. Therefore, the sleeping comfort is hard and uncomfortable. Further, since only the soft cushion material 14 receives the load, the soft cushion material 14 quickly sets and the durability is poor. still,
Hard cushion material 15 which is the central layer of the cushion body 12.
Can be formed thinner than the soft cushion materials 14, 16, but in this case, the soft cushion materials 14
The swelling of the swelling became large, and it was not possible to give a comfortable resilience like a cushion body entirely made of a soft cushion material.

[0018]

According to the present invention, the load applied from above the cushioning material is gradually absorbed by each cushioning material to provide comfortable elasticity to the user lying on the mattress. In particular, when the hard cushion material receives a load applied from above, it bends downward but is not crushed in the vertical direction because it is hard, so it provides a moderate elasticity to the human body. ing. Therefore,
The human body does not sink into the mattress, which makes it possible to create an extremely comfortable sleep.

Further, since the load applied to the outer and middle soft cushion materials is absorbed by the hard cushion material,
Only the outer and middle soft cushion materials do not receive the load, and are unlikely to cause fatigue even after long-term use.

Furthermore, when the load applied to the mattress is released, for example, when the user turns over, the intermediate soft cushion material is contracted and bent in the longitudinal direction,
The outer soft cushion material lifts the hard cushion material upward due to its elastic restoring force. Therefore, a mattress having elasticity like a spring can be obtained.

[Brief description of drawings]

FIG. 1 shows a perspective view of a mattress which is an embodiment of the present invention.

FIG. 2 shows a cross-sectional view of a cushion body that constitutes the mattress of this embodiment.

FIG. 3 is a cross-sectional view of the cushion material in FIG. 2 when a load is applied.

FIG. 4 shows a cross-sectional view of a cushion body that constitutes a mattress of a comparative example.

FIG. 5 is a cross-sectional view of the cushion material when a load is applied in FIG.

[Explanation of symbols]

 1 Mattress 2 Cushion body 4, 8 Outside soft cushion material 5, 7 Hard cushion material 6 Intermediate soft cushion material

Claims (1)

[Claims] 1. A mattress formed by laminating a plurality of cushion materials made of synthetic fibers bonded to each other by heat welding, wherein the cushion material is bonded to an intermediate soft cushion material and upper and lower surfaces of the intermediate soft cushion material. A mattress, comprising: a hard cushion material to be formed; and an outer soft cushion material joined to an outer surface of the hard cushion material.