JPH10146247A - Cushion material - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent a bedsore and to obtain comfortable air permeability at the time of using a cushion material for a bed mat, a pillow, a Japanese mattress, etc., by forming plural projecting parts at the front and rear faces of the cushion material and providing recessed parts at the lower side faces of the projecting parts. SOLUTION: The cushion material 1 forms the plural projecting parts 2 at its front and rear faces to provide plural small projecting parts 4 at the top parts 3 of the parts 2 by interposing orthogonal partition grooves 5. Then grooves 6 allowing external air and a body temperature to freely pass through are formed between the parts 2 and the plural recessed parts 7 in the shape of a circular arc in their cross sections are formed at the bottom parts of the grooves 6. Thereby, as the respective recessed parts 7 are deformed first when the respective projecting parts 2 receive a load from a body, the parts 2 are prevented from being compressed more than necessity and deformed. Then at the time of using the cushion material for the bed mat, the pillow, the Japanese mattress, etc., a bedsore is prevented and comfortable air permeability is obtained.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cushioning material used inside a mat or pillow for a bed, a sofa, a mattress, or the like. The present invention relates to a cushion material that can also exert an acupressure effect.

[0002]

2. Description of the Related Art Conventionally, mats and pillows for beds have been used.
In addition, a cushion material is used inside the sofa, mattress or the like for cushioning in order to obtain cushioning properties during use. Such a cushion material is generally formed of a material such as urethane foam resin in terms of cushioning property, air permeability, manufacturing cost, and the like.

As shown in FIG. 9, commercially available cushion materials having upper and lower surfaces in a planar shape are generally used. This cushion material 10 is characterized in that it can be mass-produced at low cost and can realize stable product supply.

Further, as shown in FIG. 10, a cushion material 20 having a corrugated convex portion 21 on an upper portion has been developed.
The purpose of this cushion material 20 is to obtain air permeability and acupressure effect by making the contact between the body and the cushion material a point contact.

[0005]

However, as shown in FIG. 9, a cushion material having a flat upper and lower surface, for example, when used as a middle material of a mattress, the body and the cushion material come into surface contact with each other. Poor air permeability and sweat absorption. Particularly, in a patient who has been undergoing long-term medical treatment at a hospital, there has been a problem that the body part in contact with the cushioning material has poor blood circulation and rubs on the floor.

Further, in the cushioning material having a corrugated convex portion on the upper portion as shown in FIG. 10, the convex portion is crushed in a portion where the body weight is concentrated, so that sufficient breathability and acupressure effect can be obtained. Did not. Further, when the hardness of the cushioning material is increased in order to solve these problems, the air permeability and the acupressure effect are improved, but the convex portion hits the body, and the user feels uncomfortable and cannot obtain a comfortable feeling of use.

In view of the above, the present invention can prevent floor rubbing and provide comfortable ventilation when used in a bed mat or pillow, a mattress or the like, and can be used in a sofa or a chair. In this case, it is an object of the present invention to provide a cushion material capable of obtaining appropriate elasticity and an effective acupressure effect.

[0008]

In order to achieve the above object, a cushioning material according to the present invention is a cushioning material having a plurality of convex portions formed on a front surface and / or a back surface, wherein a plurality of convex portions are formed on a lower side surface of the convex portion. , A concave portion is provided.

Further, a plurality of small projections can be provided at the top of the projections via orthogonal partition grooves. Thereby, when it comes into contact with the body, acupressure effect can be obtained by the small convex portion, and good air permeability can be obtained through the partition groove portion.

[0010] Further, the height of the projection may be different depending on the location of the cushion material. In this case, depending on the body, the cushioning property of the projection increases in the portion where the height of the projection is high, while the finger pressure effect of the projection increases in the portion where the height of the projection is low.

Further, the hardness of the projection may be different depending on the location of the cushion material. In order to change the hardness of the convex part, it is sufficient to change the density of the cushion material,
For example, in the portion where the density is low, the convex portion becomes flexible, so that the cushioning property is increased. On the other hand, in the portion where the density is high, the hardness is increased, and the acupressure effect is improved.

Further, the size of the concave portion may be formed so as to be different depending on the location of the cushion material. In this case, if the concave portion is made smaller, the ratio of dispersion of the addition from the body in the convex portion is reduced, and the acupressure effect of the convex portion is improved. On the other hand, when the concave portion is enlarged, the ratio of dispersion of the addition from the body in the convex portion increases, so that the cushioning property of the convex portion increases.

Furthermore, a similar convex portion having a different hardness from the convex portion may be provided on the back surface of the cushion material on which the convex portion is formed. Thus, the hardness of the convex portion varies depending on the surface to be used, and thus the convex portion can be easily used depending on the purpose.

Further, an adhesive, which is a resin liquid, is made to penetrate into the tops of the projections, and the tops are cured, whereby
The acupressure effect can be further enhanced.

[0015]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The cushioning material of the present invention will be described in detail with reference to the drawings. The cushioning material 1 of the present invention shown in FIGS. 1 to 3 is formed of a synthetic resin that has been conventionally used as a cushioning material, such as polyurethane, synthetic rubber urethane, and styrene foam. The material is not limited to these as long as the material has excellent cushioning properties and sweat absorption.

The cushion member 1 has a plurality of projections 2 formed on the front surface and / or the back surface, and the top 3 of the projection 2 has a plurality of partitioning grooves 5 interposed therebetween to form a plurality of projections. Small projections 4 are provided. The small convex portion 4 is formed in a curved shape, and has a shape that exerts an acupressure effect when in contact with the body. The partition groove 5 is formed so as to be in a non-contact state when the protruding portion 2 comes into contact with the body and to obtain a comfortable air permeability.

The four small projections 4 are provided at the top 3 of the projection 2 in each figure, but the number is not limited to this, and a plurality of small projections can be provided according to the intended use. . The partition 3 may be omitted, and the top 3 of the projection 2 may be flat or hemispherical.

A groove 6 through which the outside air and the body temperature can freely flow is formed between the convex portions 2. On the lower side surface of the convex portion 2, that is, on the bottom of the groove 6, a concave portion 7 having an appropriate size, preferably a concave portion having an arc-shaped cross section is provided. Since the concave portion 7 is deformed first when the convex portion 2 receives an addition from the body, it is possible to prevent the convex portion 2 from being compressed more than necessary and deformed. Therefore, even if the weight is extremely applied to a part of the cushion material 1, the small convex portion 4 can exert an effective acupressure effect.

Further, by providing the concave portion 7, the pressure applied to the base 8 of the cushion material 1 can be buffered, so that the distortion of the entire bed can be reduced. Therefore, for example, when it is used as a cushioning material for a double bed, even if a person lying next to it turns over, it does not receive much vibration or shaking, and a comfortable sleep can be obtained.

As a method of forming the convex portion 2, the partition groove 5, the small convex portion 4, the groove 6, the concave portion 7 and the like on the cushion material 1, a fine thread saw is used, and the X direction and the Y direction are used. It can be easily formed by cutting in two directions.

Next, another embodiment of the cushioning material of the present invention will be described with reference to FIGS. FIG. 4 shows a state in which the depths of the cuts of the grooves 6 between the protrusions 2 are changed, and the heights of the protrusions are different. When the depth of the cut of the groove 6 is set to the deep groove D, the convex portion 2 provided with the deep groove D has a high height and the cushioning property increases. On the other hand, in the case of the shallow groove d, the convex portion 2 has a low length, an appropriate strength is obtained, and the acupressure effect is improved.

FIG. 5 shows a state in which the hardness of the convex portion 2 and the base portion 8 is changed and each of them is combined. For example, the part (a) in which the density of the cushion material is reduced to reduce the hardness
Then, the convex part 2 and the base part 8 become flexible, and the cushioning property increases. Conversely, in the part (b) where the density is increased and the hardness is increased, the hardness is increased and the acupressure effect is improved.

As shown in FIG. 6, by changing the size of the concave portion 7, the cushioning property of the convex portion 2 can be adjusted. For example, when the concave portion 7 is made smaller, the ratio of dispersing the addition from the body decreases, and the acupressure effect of the convex portion 2 improves. On the other hand, when the concave portion 7 is enlarged, the rate of dispersion of the addition from the body increases, and the cushioning property of the convex portion 2 increases.

Further, as shown in FIG. 7, if a cushion material structure is provided in which both convex portions 2 and convex portions 2 'having different hardness are provided on both surfaces, it is possible to easily use them properly according to the purpose of use.

Further, as shown in FIG. 8, an adhesive such as a resin liquid, for example, a urethane-based prepolymer can be permeated into the tops of the projections, and the tops can be cured. Thereby, the acupressure effect can be further enhanced.

According to the above-mentioned method, the hardness and cushioning property of the projection 2 can be freely adjusted. Therefore, FIG.
When used as a mattress as shown in FIG. 5, the hardness of the convex portion 2 is increased in the back and waist portion (A) where the weight is added most, and the hardness is intermediate in the shoulder and head portion (B), and the foot portion (C). In (2), by forming the convex portion 2 softly, more comfortable sleep and an effective acupressure effect can be obtained.

[0027]

As described above, the cushioning material of the present invention has the following effects by adopting the above structure. By providing a plurality of small protrusions and partition grooves at the top of the protrusions of the cushion material, air permeability and acupressure effect can be obtained. Therefore, when used for beddings such as mattresses, comfortable sleep can be obtained, and rubbing on the floor caused by poor blood circulation can be prevented.

The grooves between the convex portions can exhibit more excellent air permeability. In addition, by providing the concave portion on the lower side surface of the convex portion, even when the convex portion receives an excessive addition from the body, it is not compressed and deformed more than necessary, so that an effective finger pressure is provided by the small convex portion. The effect is obtained.

Further, since the pressure on the base of the cushion material is buffered by the concave portion on the lower side surface of the convex portion, the distortion of the whole bed can be reduced. Therefore, for example, when used as a cushioning material for a double bed, even if a person sleeping next to turns over, he or she does not feel much vibration or shaking, and a comfortable sleep can be obtained.

Further, as shown in FIG. 11A, in a cushion material having a built-in spring 20,
Although the corners of the spring 22 come into contact with the human body P and feel uncomfortable during use, as shown in (b), in the cushion material of the present case, the contact between the convex portion 2 and the human body P is curved. Therefore, a comfortable feeling of use is obtained.

Furthermore, the cushioning material of the present invention can be easily manufactured by cutting it in two directions of the X direction and the Y direction using a fine thread saw.

[Brief description of the drawings]

FIG. 1 is an overall perspective view of a cushioning material of the present invention.

FIG. 2 is an explanatory diagram showing an operation of the cushion material.

FIG. 3 is an explanatory diagram illustrating an example of a method of using the cushion material.

FIG. 4 is a cross-sectional view illustrating another embodiment of the cushioning material of the present invention.

FIG. 5 is a cross-sectional view illustrating another embodiment of the cushioning material of the present invention.

FIG. 6 is a cross-sectional view illustrating another embodiment of the cushioning material of the present invention.

FIG. 7 is a perspective view illustrating another embodiment of the cushioning material of the present invention.

FIG. 8 is a perspective view illustrating another embodiment of the cushioning material of the present invention.

FIG. 9 is a cross-sectional view illustrating a conventional cushion material.

FIG. 10 is a cross-sectional view illustrating another conventional cushioning material.

FIG. 11 is an explanatory diagram showing a difference between the cushion material of the present invention and a conventional spring material.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Cushion material 2 Convex part 3 Top part 4 Small convex part 5 Partition groove 6 Groove 7 Concave part 8 Base part 10 Cushion material 20 Cushion material 21 Convex part 22 Spring

Claims (7)

[Claims] 1. A cushioning material having a plurality of projections (2) formed on a front surface and / or a back surface, wherein a depression (7) is provided on a lower side surface of the projections (2). Cushioning material. 2. The cushioning material according to claim 1, wherein a plurality of small projections (4) are provided on a top portion (3) of the projections (2) via orthogonal partition grooves (5). 3. The cushion material according to claim 1, wherein the height of the projections (2) varies depending on the location of the cushion material. 4. The cushioning material according to claim 1, wherein the hardness of the projections (2) varies depending on the location of the cushioning material. 5. The cushion material according to claim 1, wherein the size of the concave portion differs depending on the location of the cushion material. 6. A convex portion (2) having a hardness different from that of the convex portion (2) on the back surface of the cushion material on which the convex portion (2) is formed.
The cushioning material according to claim 1 or 2, further comprising: 7. The cushion material according to claim 1, wherein an adhesive, which is a resin liquid, penetrates into the tops (3) of the projections, and the tops (3) are hardened.