JP2003299554A - Mattress unit - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a mattress unit which can prevent a low impact-resilient elastic material from being hardened under a low temperature in winter, or the like, by providing a heating means capable of heating the low impact- resilient elastic material at a specified temperature, while a plurality of cushion bodies are arranged so as to make the hardness and touch of the back part, the hip part and the leg part, or the like, thereof partially vary depending on differences in softening points as caused by mutual heating of the plurality of cushion bodies. <P>SOLUTION: In the mattress unit which is provided with a cushion product at least on the top surface side thereof across the thickness thereof and a heating means for heating the cushion product up to a specified temperature, the cushion product is made up of a plurality of cushion bodies and formed of the low impact-resilient elastic foams having the softening points mutually varying by heating at least between two cushions out of the plurality thereof. <P>COPYRIGHT: (C)2004,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a mattress device capable of dispersing body pressure.

[0002]

2. Description of the Related Art Generally, a mattress device has a spring unit, and an elastic layer made of a foamed elastic material such as polyurethane foam is polymerized on at least the upper and lower surfaces of the spring unit, and the polymer is covered with an exterior material. Is configured.

However, according to such a mattress device, when a user lies on the mattress device, the heavy part of the body, such as the buttocks, elastically deforms the elastic layer and the spring unit and sinks. A large repulsive force will be generated.

As a result, the buttocks are pressed by the elastic layer and the repulsive force of the spring unit, so that the person must sleep for a long time, for example, the elderly or the sick cannot freely turn over by themselves. In the case of such a user, bed slippage is likely to occur in the buttocks.

Therefore, it has been considered to use a low-repulsion elastic material such as a low-repulsion urethane foam, which hardly generates a repulsive force against a load, in the elastic layer. The low impact resilience material has the advantages that the impact resilience is very small and that it has excellent impact absorbing performance.

Therefore, when the user's load is applied to the low repulsion elastic material, the low repulsion elastic material gently sinks in order to support the body, so that the repulsive force is hard to concentrate on the heavy portion of the user's body. It has the effect of dispersing pressure. As a result, the stress applied to the spring unit is also dispersed, so that even if the person sleeps for a long period of time, it may be difficult for bed sores to occur. Further, it is necessary to change the position of the low repulsion elastic material in accordance with the demanded position for dispersing the body pressure depending on the physical condition of the user or the physical condition.

[0007]

By the way, the low impact resilience material has a temperature dependency in which the hardness varies depending on the temperature. That is, since the low impact resilience material provided on the mattress becomes hard at a low temperature, the user may feel a hard feeling until the temperature of the low impact resilience material rises due to the body temperature in winter when the room temperature decreases. In addition, the hardness may be partially changed depending on the user's physical condition or preference, so that it cannot be used in a comfortable state.

According to the present invention, by providing the heating means capable of heating the low impact resilience material to a predetermined temperature, it is possible to prevent the low impact resilience material from becoming hard when the temperature is low such as in winter. To provide a mattress device that is a mattress device and that can partially change the hardness and feel of the back, buttocks, legs, etc. due to the difference in softening point (temperature at which hardness changes) due to mutual heating of a plurality of cushion bodies. It is in.

[0009]

According to a first aspect of the present invention, there is provided a mattress device comprising a cushion body provided at least on the upper surface side in the thickness direction, and heating means for heating the cushion body to a predetermined temperature. The above cushion body is composed of a plurality of cushion bodies, and at least two cushions of the plurality of cushions constituting the cushion body are low repulsion elastic foams having different softening points due to heating. .

According to the second aspect of the present invention, a plurality of second cushion bodies including a first cushion body and at least two low-resilience foams having different softening points by heating which are polymerized on the first cushion body. And a heating means for heating the second cushion body to a predetermined temperature, and an exterior material which covers the first cushion body and the second cushion body and allows the second cushion body to be taken in and out freely. The mattress device according to claim 1 characterized in that.

According to a third aspect of the present invention, the heating means is provided on the upper surface side of the first cushion body and on the lower surface side of the second cushion body, and the second cushion body is heated separately to control the temperature. The mattress device according to claim 2, wherein

According to the invention of claim 4, a spring unit is formed by connecting a large number of springs in parallel, and a protective layer made of relatively hard urethane foam or compressed cotton polymerized on the surface of the spring unit. A first cushion body, a bottom member such as a urethane sheet is laid on the upper surface of the protective layer on the first cushion body, and a frame-shaped elastic material formed of a material such as urethane foam on the bottom member, and a frame-shaped elastic member. A plurality of second cushion bodies including at least two low-resilience foams arranged in parallel on the inner surface side of the elastic material and housed so that they can be freely taken in and out;
In the mattress device, the second cushion body is provided on the lower surface side of the cushion body to heat the second cushion body to a predetermined temperature.

According to a fifth aspect of the present invention, in the plurality of second cushion bodies, the material itself is colored, or a cloth bag for accommodating the cushion body is color-coded, or a reference numeral is described to visually confirm the hardness of the cushion. The mattress device according to claim 1, wherein the mattress device can be confirmed.

According to the present invention, since the low-repulsion elastic material can be heated by the heating means, it is possible to prevent the low-repulsion elastic material from becoming hard even during a low room temperature such as winter.

Further, due to the temperature dependence of the low impact resilience foam, by heating a plurality of cushion bodies having different softening points, which are the temperatures at which the hardness changes by heating, the hardness of each cushion body, the user It is possible to change the feel given to.

[0016]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to the drawings.

The mattress device of the present invention shown in FIG. 1 includes a spring unit 1 as a first cushion body. In this spring unit 1, a large number of coil springs 2 are arranged in a matrix, the upper and lower end surfaces of adjacent coil springs 2 are connected by helical lines 3, respectively, and frame lines 4 are further provided on the upper and lower peripheral edges. They are connected by a clip (not shown).

A plate-shaped upper protective layer 5 and a plate-shaped lower protective layer 6 are joined to the upper surface and the lower surface of the spring unit 1, respectively. Each of the protective layers 5 and 6 is made of a material such as compressed cotton or relatively hard urethane foam.

As shown in FIG. 3, a bottom member 7 such as a urethane sheet is laid on the upper protective layer 5, and a frame-shaped elastic member 8 made of a material such as urethane foam is laid on the bottom member 7. Is provided by adhesively fixing the lower end surface to the peripheral portion of the bottom member 7.

A second cushion body 9 is housed inside the frame-shaped elastic material 8 so that it can be freely taken in and out. The second cushion body is a cushion body 9A made of low-resilience urethane foam and a cushion body 9B made of soft urethane foam.
The cushion body 9C made of low-resilience urethane foam having a higher softening point than that of the cushion 9A is adopted, and the cushion bodies 9A, 9B and 9C are stored in parallel.

On the lower surface side of the second cushion body 9, a pair of heat-resistant sheets 10 made of, for example, heat-resistant nonwoven fabric is provided over substantially the entire surface. Between the heat resistant sheets 10, a heating element 11 as a heating means bent in a meandering shape is provided over substantially the entire surface of the second cushion body 9.

Around the upper surface of the heat-resistant sheet 10, one end of a belt-shaped connecting member 12 such as a velvet fastener is fixedly held. The other end of the connecting member 12 is inserted between the bottom member 7 and the frame-shaped elastic member 8 and integrally fixed to them by adhesion. Thereby, the heating element 11 is immovably held on the lower surface of the second cushion body 9 via the heat resistant sheet 10.

The heating element 11 comprises variable resistors 13a, b,
By using the temperature setting device 13 including c and the switches SW, SW, SW, the heating elements 11, 11, 11 can be separately heated to a predetermined temperature and kept heated.

Since the low-resilience urethane foam has a temperature level at which the hardness changes greatly near room temperature, the hardness tends to change sensitively in response to the temperature change near room temperature, generally 10 to 15 degrees. When the temperature is below C, the hardness tends to increase, and the type of urethane foam that has a high resilience and returns quickly tends to have a small temperature dependence, while urethane foam that has a low rebound texture strongly has a temperature dependence. Tends to be high.

Generally, the point of softening depending on the temperature of the urethane foam is around room temperature, the temperature becomes softer below that temperature, and becomes softer above that temperature. The softening temperature is the molecular weight in the molecular skeleton of the urethane foam. The softening point of the raw material soft urethane foam with a large molecular weight is on the low temperature side, so it remains soft and soft near room temperature, while the softening point of the rigid urethane foam with a small atomic weight molecular weight is on the high temperature side. It remains hard near room temperature. The low-resilience foam adjusts the softening temperature near room temperature by mixing the respective materials.

Therefore, a plurality of low-resilience urethane foams having different softening points due to such heating are adopted for the second cushion body 9. Further, since the difference in softening point due to heating largely depends on the size of the density, the hardness depends on the size of the density.

In FIG. 1, as the second cushion body 9, a cushion body 9A made of low-resilience urethane foam and cushion bodies 9B and 9A made of soft urethane foam.
A low-resilience urethane foam having a lower softening point was used as the cushion body 9C.

That is, when the cushion bodies 9A and 9C are heated at the same time, the softening points are displaced even at the same temperature, which causes the hardness to be different. Further, the cushion bodies 9A and 9C having different softening points can be set to different temperatures to change the hardness. Further, by heating the cushion body to keep it warm, it is possible to warm a desired part of the user's body.

The above spring unit 1, the frame-shaped elastic member 8 and the second cushion body 9 are integrally covered with the exterior material 21. This exterior material 21 includes a lower mirror surface 22 that covers the lower protective layer 6, the frame-shaped elastic material 8 and the second
The upper mirror 23 covering the upper surface of the cushion body 9 and the gusset 24 covering the outer peripheral surfaces of the spring unit 1 and the frame-shaped elastic member 8 have upper and lower end portions of the gusset 24 described above. The peripheral portions of the ground 22 and the upper mirror ground 23 are integrally sewn with a tape 25, but one side can be moved in and out of the second cushion bodies 9A, B, C by a fastener 26, and their positions can be changed. Is provided.

According to the mattress device having such a structure, when a user lies on the upper surface, the load of the user is increased by a plurality of cushions provided in the frame-shaped elastic member 8 and including at least two low-resilience urethane foams. Second composed of
Supported by the cushion body 9. When a load is applied to the cushions 9A, 9C made of low-resilience urethane foam, the low-resilience urethane foam 9A, 9C gently sinks in accordance with the unevenness and weight of the body to support the body. The repulsive force is prevented from being concentrated on and the load applied to the spring unit 1 is accordingly dispersed.

Therefore, even if the user is an old person or a sick person and cannot turn over freely, it is possible to prevent bed sores even if the heavy portion of the user's body is continuously pressed. it can.

In this embodiment, the cushion 9A for supporting the back side has a low resilience urethane foam having a lower softening point than that of the cushion 9C for supporting the legs and having a lower softening point. I am making it soft. A soft urethane foam is used for the cushion body 9B of the heavy buttocks.

In this way, when all the heating elements 11 are heated to the same temperature, the cushion bodies 9A and 9C are
Has a different softening point and thus can have different hardness, the leg side cushion body 9C having a low softening point is soft, and the cushion body 9A having a softening point higher than this is hard and supports a heavy back.

The cloth bags 14 accommodating the cushions 9A, 9B and 9C are color-coded separately so that the hardness thereof can be visually recognized. Therefore, the mattress fastener 26 is opened according to the hardness preference of the user to open the cushion 9
The positional relationship in the longitudinal direction of the beds of A, 9B and 9C can be easily changed.

The above-mentioned color codes are used for the cushions 9A, 9B, 9
The same effect can be expected if the material itself is colored or a code is described instead of the cloth bag 14 that stores C.

In the above-mentioned embodiment, among the plurality of cushions 9A, 9B and 9C which form the second cushion body,
The two cushions 9A and 9C are made of low-resilience urethane foam, and one of the cushions 9B is made of soft-urethane foam, but they are all made of low-resilience urethane foam having different softening points and the hardness is changed by heating the heating element 11. Of course, it is okay.

FIG. 5 shows a second embodiment in which this mattress is a wide mattress called a king size and a single size mattress is arranged in parallel, and the second cushion body 9 has a low softening point. It is composed of cushions 9A, 9B, 9C made of repulsive urethane foam, and these cushion bodies 9A, 9B, 9C can be freely put in and taken out, so that the left and right mattresses are arranged in the reverse order so that the mattress is supine. A person can set a desired hardness, the hardness of each cushion body 9A, B, C can be changed by heating by the heating element 11, and further, a desired portion of the user's body can be warmed. You can

[0038]

As described above, according to the present invention, the mattress device is provided with the cushion body at least on the upper surface side in the thickness direction and the heating means for heating the cushion body to a predetermined temperature. The above-mentioned cushion body is composed of a plurality of cushion bodies, and at least two cushion bodies of the plurality of cushion bodies that form the cushion body have different softening points due to heating, so that when heated, the portion desired by the user is heated. It is possible to provide a mattress device having partially different hardness, and further, since the feel of hardness varies depending on the size of the density, the user can provide the mattress in which the arrangement of each cushion body can be arbitrarily changed. .

[Brief description of drawings]

FIG. 1 is a perspective view showing a first embodiment of the present invention with a partial cross-section showing an internal structure.

[Figure 2] Cross section of mattress

FIG. 3 is a perspective view showing the wiring of the heating element 11.

FIG. 4 shows an example of using a wide king size mattress in the second embodiment.

FIG. 5 is a partially enlarged view of the mattress showing a mounting state of the heating element 11.

[Explanation of symbols]

1: First cushion body (spring unit) 2: Coil spring 3: Helical line 4: Border 5: Upper protective layer 6: Lower protective layer 7: Bottom member 8: Frame-shaped exterior body 9: Second cushion body 10: Heat resistant sheet 11: Heating element 12: connecting member 13: Temperature setting device 21: Exterior land 22: Lower mirror ground 23: Kamikochi 24: Machi 25: Tape 26: Fastener

Claims (5)

[Claims] 1. A mattress device comprising a cushion body at least on the upper surface side in the thickness direction, and heating means for heating the cushion body to a predetermined temperature, wherein the cushion body comprises a plurality of cushion bodies. The mattress device, wherein at least two cushion bodies of the plurality of cushion bodies are made of low repulsion elastic foam having different softening points due to heating. 2. A first cushion body, a plurality of second cushion bodies including at least two low-resilience foams having different softening points by heating, which are polymerized on the first cushion body, and the second cushion body. A heating means for heating the cushion body to a predetermined temperature, and an exterior material that covers the first cushion body and the second cushion body and allows the second cushion body to be freely put in and taken out. The mattress device according to claim 1. 3. The heating means is provided on the upper surface side of the first cushion body and on the lower surface side of the second cushion body, and separately heats the second cushion body to control the temperature. The mattress device according to claim 2. 4. A first cushion body comprising a spring unit formed by connecting a large number of springs in parallel, and a protective layer made of relatively hard urethane foam or compressed cotton superposed on the surface of the spring unit. And a bottom member such as a urethane sheet is laid on the upper surface of the protective layer on the first cushion body, and a frame-shaped elastic member formed of a material such as urethane foam on the bottom member, and an inner surface side of the frame-shaped elastic member. A plurality of second cushion bodies including at least two low-rebound resilience foams having different softening points due to heating, which are housed in parallel with each other and are stored in and out freely; and a second cushion provided on the lower surface side of the second cushion body. A mattress device comprising: heating means for heating the body to a predetermined temperature. 5. The plurality of second cushion bodies are characterized in that the material itself is colored, or a cloth bag for accommodating the cushion bodies is color-coded, or a code is provided to visually confirm the hardness of the cushion. The mattress device according to claim 1.