JP6905903B2 - Laminated mattress - Google Patents

Description

The present invention relates to a laminated mattress using a plurality of core materials.

In recent years, as a mattress used for a bed, a laminated mattress having a plurality of functions is known. The laminated mattress is required to have body pressure dispersibility in order to eliminate the discomfort caused by the concentration of pressure on a part of the body, and to have body support in order to support the body without disturbing the sleeping posture. Further, in order to apply it to a nursing bed, which has been attracting attention in recent years, flexibility capable of supporting a function of inclining the dorsal side portion by about 70 to 80 degrees with respect to the horizontal is also required.
Furthermore, mattresses that emphasize breathability so as not to accumulate moisture are being developed.

As a conventional technique, for example, a laminated mattress that emphasizes body pressure dispersibility and breathability, and has a surface material having elastic properties in the vertical direction and no repulsive force on both the front and back surfaces of the outer frame material. The outer frame is made of a breathable shape-retaining member which is formed so that the direction of the folds is substantially the same as the lateral direction of the bed, and the shape-retaining member is folded in a substantially U shape so that the fiber direction is the vertical direction. It has been proposed that the outer frame material is provided with a vent hole for taking in air inside the material as well as the interior material (see Patent Document 1).

With this configuration, the body pressure applied to the mattress can be dispersed on the surface material, so that bedsores can be suppressed, and the mattress does not sink unnecessarily, so the mattress is in the vertical direction. At the same time, it is possible to avoid increasing the thickness of the.

In addition, since the air permeability can be improved, it is not necessary to dry the mattress, and it is possible to provide a mattress with less burden on patients and nurses.

However, the above-mentioned conventional laminated mattress has a problem that both body pressure dispersibility and body support cannot be achieved at the same time.

Therefore, as a measure to solve the above problem, for example, a laminated mattress in which the first core material to the third core material have a predetermined thickness and the flexible second core material is sandwiched between the third core material is proposed. (See Patent Document 2).

With this configuration, the second core material can be made to follow the body shape, sleeping posture, etc., so that even if it is relatively thin, good sleeping comfort, body pressure dispersion, and body support can be ensured on both the front and back sides. You can get different sleeping comforts without bottoming out on the front and back.

Japanese Patent No. 2930000 Japanese Unexamined Patent Publication No. 2005-329581

However, in the conventional laminated mattress of Patent Document 2 described above, the mattress is composed of a three-layer structure consisting of a first core material, a second core material, and a third core material, and the second core material as an intermediate layer has the highest hardness. Since it is made of a high material, there is a problem that even if the first core material and the second core material, which are the front and back surfaces, are composed of different hardnesses, they are easily affected by the second core material that is in direct contact with the material. ..

The present invention has been made in view of the above-mentioned conventional problems, and provides a laminated mattress capable of effectively functioning different functions of the front and back surfaces in a laminated mattress having different front and back functions. The purpose.

The laminated mattress according to the present invention for solving the above-mentioned problems is as follows.

The present invention is a laminated mattress.
In a laminated mattress using a plurality of core materials, a first surface core material forming one side of the front and back surface layers, a second surface core material forming the other side, and the first surface core material An intermediate core material arranged between the second surface core material and the second surface core material is provided.
As the intermediate core material, at least a first intermediate core material adjacent to the inside of the first surface core material, a second intermediate core material adjacent to the inside of the second surface core material, and the first intermediate core material. A third intermediate core material arranged between the intermediate core material 1 and the second intermediate core material is provided.
Adjacent core materials have different functions.

Further, in the present invention, as a configuration of the laminated mattress, a high hardness side core material (for example, a side edge member) is provided inside the side end along the longitudinal direction of the mattress, and the side core material has a short mattress. Slits may be formed along the direction.

According to the laminated mattress of the present invention, in a laminated mattress using a plurality of core materials, a first surface core material forming one side of the front and back surface layers and a second surface core material forming the other side. An intermediate core material arranged between the first surface core material and the second surface core material is provided, and the intermediate core material is at least adjacent to the inside of the first surface core material. The first intermediate core material to be used, the second intermediate core material adjacent to the inside of the second surface core material, and the first intermediate core material and the second intermediate core material are arranged. The third intermediate core material is provided, and the adjacent core materials have different functions. Therefore, when the front and back surfaces of the mattress are used properly, for example, a high hardness function, a low hardness function, and a high hardness function are used. It is possible to effectively function the functions of the respective core materials such as the repulsion function, the water permeability function, the heat resistance function, and the chemical resistance function, and effectively function the different functions on the front and back surfaces.

It is explanatory drawing which shows the whole structure of the laminated mattress which concerns on 1st Embodiment. It is a top view which shows the structure of the laminated mattress. It is a side sectional view in the longitudinal direction of a mattress which shows the structure of the core material which constitutes the laminated mattress. It is a side sectional view of the mattress in the lateral direction which shows the structure of the core material which comprises the laminated mattress. It is explanatory drawing which shows the whole structure of the mattress which concerns on 1st Embodiment. It is explanatory drawing which shows the structure of the 3rd intermediate core material which comprises the laminated mattress. It is explanatory drawing which shows the surface shape of the head side and the foot side of the 3rd intermediate core material. It is explanatory drawing which shows the surface shape of the bending part of the 3rd intermediate core material. It is explanatory drawing which shows the surface shape of the part of the 3rd intermediate core material corresponding to the waist part of the user of the laminated mattress. It is explanatory drawing which shows the relationship of the surface shape of the 3rd intermediate core material corresponding to the sacrum of the user of the laminated mattress. It is explanatory drawing which shows the state which the side edge member is arranged on the laminated mattress. It is explanatory drawing which shows the structure of the side edge member. (A) is a plan view showing the structure of the side edge member, and (b) is a side view showing the structure of the side edge member. It is explanatory drawing which shows the state which the side edge member is arranged in the laminated mattress 1. It is explanatory drawing which shows the structure of the laminated mattress which concerns on 2nd Embodiment. It is explanatory drawing which shows the processing direction of the core material used for the laminated mattress which concerns on 3rd Embodiment. It is explanatory drawing which shows the outline of the state which the core material is processed.

(First Embodiment)
Hereinafter, a mode for carrying out the laminated mattress of the present invention will be described in detail with reference to the drawings.

FIG. 1 is an example of an embodiment of the present invention, an explanatory view showing the overall configuration of the laminated mattress according to the first embodiment, FIG. 2 is a plan view showing the configuration of the laminated mattress, and FIG. 3 is the laminated mattress. FIG. 4 is a side sectional view in the longitudinal direction of the mattress showing the configuration of the core material constituting the mattress, and FIG. 4 is a side sectional view in the lateral direction of the mattress showing the configuration of the core material constituting the laminated mattress.
(Mattress composition)
As shown in FIGS. 1 to 4, the laminated mattress 1 according to the first embodiment is a mattress in which the laminated mattress 1 is covered with a side surface 2, and a plurality of core materials are laminated in the vertical direction. There is.

Specifically, the laminated mattress 1 includes a first surface core material 11 forming one side of the front and back surface layers, a second surface core material 12 forming the other side, and a first surface core material 11 and a first surface core material 11. It is configured to include an intermediate core material 20 arranged between the surface core material 12 and the surface core material 12.

The intermediate core material 20 includes a first intermediate core material 21 adjacent to the inside of the first surface core material 11, a second intermediate core material 22 adjacent to the inside of the second surface core material 12, and a second. It includes a third intermediate core material 23 arranged between the intermediate core material 21 of 1 and the second intermediate core material 22.

Further, in the laminated mattress 1, as shown in FIGS. 2 to 4, side edge members 3 and 3 are arranged along the longitudinal direction of the mattress on both left and right edges of the mattress, and the mattress is on the head side and the foot side. Stopper members 4 and 4 are arranged on both end edges along the lateral side of the mattress.
(Composition of core material)
Adjacent core materials have different functions.

In the first embodiment,
The first surface core material 11 is called an extra soft surface, and has a lower hardness than the second surface core material 12, and a urethane material having the lowest hardness among the core materials used in the laminated mattress is used. There is.

The second surface core material 12 is referred to as a soft surface, and a urethane material having a low hardness and a high resilience is used next to the first surface core material 11.

A high-resilience urethane material is used for the first intermediate core material 21.

As the second intermediate core material 22, for example, a three-dimensional net-like body is used as the core material having a water resistant function. The second intermediate core material 22 may be a core material having a function of breathability, heat resistance or chemical resistance.

As the third intermediate core material 23, a urethane material having the highest hardness than other core materials is used.

Here, the characteristic configuration of the third intermediate core material 23 of the first embodiment will be described with reference to the drawings.

FIG. 5 is an explanatory view showing the configuration of a third intermediate core material constituting the laminated mattress according to the first embodiment, and FIG. 6 is an explanatory view showing the surface shapes of the head side and the foot side of the third intermediate core material. FIG. 7 is an explanatory view showing the surface shape of the bent portion of the third intermediate core material, and FIG. 8 shows the surface shape of the portion of the third intermediate core material corresponding to the waist portion of the user of the laminated mattress. The explanatory view and FIG. 9 are explanatory views showing the relationship between the sacrum of the user of the laminated mattress and the surface shape of the third intermediate core material corresponding to the sacrum.

The third intermediate core material 23 has a region having a plurality of functions having a surface shape that disperses a load according to a part of the mattress user and a concavo-convex cross-sectional shape that makes the core material itself easy to bend.

Specifically, as shown in FIG. 5, the third intermediate core material 23 includes a first region 23a corresponding to the head and back of the mattress user, a second region 23b including the lumbar region, and legs. A region having a concavo-convex cross-sectional shape including the third region 23c including the region is formed.

Further, a portion of the second region 23b adjacent to both sides in the longitudinal direction of the mattress, that is, a portion between the first region 23a and the second region 23b, and a second region 23b and a third region 23c. In the portion between them, a fourth region 23d is formed in which the core material is easily bent.

In the first region 23a, as shown in FIGS. 5 and 6, a plurality of rows of uneven portions 23a1 having a corrugated surface shape continuous along the short side (width direction) of the mattress are formed parallel to the longitudinal direction of the mattress. ing. As shown in FIGS. 5 and 6, the third region 23c has a concave-convex portion 23c1 formed in the same configuration as the first region 23a.

In the second region 23b, as shown in FIGS. 8 and 9, the uneven portion 23b1 having a wavy surface shape along the width direction of the mattress according to the shape of the sacrum of the user's buttocks is formed in the longitudinal direction of the mattress. Multiple rows are formed in parallel.

Reference numeral 23b2 in FIG. 9 is a pattern that roughly represents the shape of the sacrum of the user.

As shown in FIGS. 5 and 7, the fourth region 23d is formed in a predetermined range with the second region 23b in between, and in each region, a straight line continuous along the short side (width direction) of the mattress. A plurality of rows of uneven portions 23d1 having a shape-like surface shape are formed parallel to the longitudinal direction of the mattress.

As described above, in the third intermediate core material 23, the uneven portions 23a1, 23b 1, 23c 1, 23b 1 are formed in the respective surface shapes symmetrically with respect to the length of the mattress with the second region 23b as the center.

In the first embodiment, the height (or depth) of the uneven portion of each region of the third intermediate core material 23 is not specified, but it is changed according to the support function, the cushion function, and the like by the uneven portion. It is possible to set.

Further, in the first embodiment, the second surface core material 12 has a shape similar to the surface shape of the third intermediate core material 23, as shown in FIGS. 3 and 5.

With this configuration, the low hardness and high resilience urethane material of the second surface core material 12 can support the user in a soft and cushioning state according to each region. Further, since the third intermediate core material 23 can support the user in the central portion of the laminated mattress 1 with the same configuration, the function of the uneven portion of each region can be effectively performed.
(Structure of side edge member)
Next, the side edge member 3 provided on the laminated mattress 1 of the first embodiment will be described.

FIG. 10 is an explanatory view showing a state in which the side edge member is arranged on the laminated mattress of the first embodiment, FIG. 11 is an explanatory view showing the configuration of the side edge member, and FIG. 12 (a) shows the configuration of the side edge member. The plan view shown, FIG. 13B is a side view showing the configuration of the side edge member, and FIG. 13 is an explanatory view showing a state in which the side edge member is arranged on the laminated mattress 1.

As shown in FIGS. 10 and 11, the side edge member 3 is provided between the first surface core material 11 and the second surface core material 12 at both side ends of the laminated mattress 1 along the mattress longitudinal direction. Has been done.

Specifically, the side edge member 3 uses a core material having a high hardness, and as shown in FIGS. 10 and 11, a plurality of continuous convex portions 31 having a substantially semicircular cross-sectional shape, that is, a so-called semi-circular cross-sectional shape. The mattress is arranged integrally and integrally over substantially the entire longitudinal direction of the mattress.

As shown in FIGS. 12 (a) and 12 (b), some of the convex portions 31 are formed with slits 32 that are cut inward from the surface side and along the lateral direction (width direction) of the mattress. ing.

As a configuration of the slit 32, a first slit 32a cut inward from the end portion in the width direction by a predetermined amount, and a second slit 32a cut in a predetermined range in the vicinity of the central portion of the convex portion 31 leaving the vicinity of the end portion. Slit 32b is formed. The first slit 32a and the second slit 32b are formed alternately in the longitudinal direction of the mattress in a so-called staggered shape.

In the side edge member 3 configured in this way, as shown in FIG. 13, a convex portion 31 having a slit 32 formed faces the first surface core material 11 and the second surface core material 12. It is arranged in a state of being stacked one above the other so that it is arranged in a vertical manner.

The position of the slit 32 formed in the side edge member 3 is formed at a position shifted to the foot side from the portion where the side edge member 3 is bent and deformed in, for example, in the operation of bending the leg portion of the laminated mattress 1. .. As a result, the foot side of the laminated mattress 1 is easily bent because the slit 32 is deformed by the weight of the mattress itself.
(Structure of stopper member)
The stopper member 4 is arranged at both ends of the laminated mattress 1 in the longitudinal direction of the mattress as shown in FIGS. 2 and 11 by using a core material having a high hardness, and is a second surface as shown in FIG. As shown in FIG. 10, the second intermediate core material 22 is arranged between the core material 12 and the third intermediate core material 23 and between the side edge members 3 and 3. ing.

According to the first embodiment, in the laminated mattress 1, the first surface core material 11 forming the surface layer on one side and the second surface forming the surface layer on the other side are configured as described above. Between the core material 12, the first surface core material 11, and the second surface core material, a first intermediate core material 21 adjacent to the inside of the first surface core material 11 and a second surface. A second intermediate core material 22 adjacent to the inside of the core material 12 and a third intermediate core material 23 arranged between the first intermediate core material 21 and the second intermediate core material 22 are provided. By assuming that the adjacent core materials have different functions, when the front and back surfaces of the laminated mattress 1 are used properly, for example, a high hardness function, a low hardness function, a high resilience function, and water permeability The functions of each core material, such as the function of the above, the function of heat resistance, and the function of chemical resistance, can be effectively made to function, and different functions on the front and back surfaces can be effectively made to function.

Further, in the first embodiment, by providing the side edge member 3 and the stopper member 4 as the configuration of the laminated mattress 1, the core material constituting the laminated mattress 1 can be integrally and stably configured, and the user. Even when the mattress 1 sits on the edge of the laminated mattress 1, it does not sink significantly, so that it is easy to sit down, and the influence of the posture on the sleeping user can be reduced.
(Second Embodiment)
Next, the second embodiment will be described with reference to the drawings.

FIG. 14 is an explanatory view showing the configuration of the laminated mattress according to the second embodiment.

In the laminated mattress according to the second embodiment, the same components as those of the laminated mattress according to the first embodiment are designated by the same reference numerals, and the description thereof will be omitted.

As shown in FIG. 14, the laminated mattress 101 of the second embodiment includes a second surface core material 112 having a flat surface shape instead of the second surface core material 12 of the first embodiment. It is characterized by that.

With this configuration, when the laminated mattress 101 is reversible and the front and back surfaces are used, the function depending on the surface shape can be used without being significantly changed.
(Third Embodiment)
Next, the third embodiment will be described with reference to the drawings.

FIG. 15 is an explanatory view showing a processing direction of the core material used for the laminated mattress according to the third embodiment, and FIG. 16 is an explanatory view showing an outline of a state in which the core material is processed.

In the laminated mattress according to the third embodiment, the same components as those of the laminated mattress according to the first embodiment are designated by the same reference numerals, and the description thereof will be omitted.

A third embodiment relates to a characteristic mattress processing method for processing a core material constituting the laminated mattress 1 of the first embodiment.

Regarding the basic processing method of urethane material, detailed description thereof will be omitted by referring to the steps and the like disclosed in JP-A-2004-290386.

In the third embodiment, as shown in FIGS. 15 and 16, the core material 330 that can be compressed and restored of the mattress is sandwiched between a pair of rolls 310 and conveyed while being compressed in the thickness direction, and is conveyed on the downstream side of the pair of rotation directions. This is a mattress processing method in which the core material is divided into two and molded into a predetermined shape by a cutter member 320 provided close to the rolls 310.

In the third embodiment, a case where the third intermediate core material 23 constituting the laminated mattress 1 of the first embodiment is processed will be described.

The pair of rolls 310 are formed with a plurality of molding regions of uneven portions having different surface shapes along the roll axis direction.

Specifically, as shown in FIG. 15, the roll 310 has a first region 23a, a second region 23b, a third region 23c, and a fourth region of the third intermediate core material 23. A first molding region 311a, a second molding region 311b, a third molding region 311c, and a fourth molding region 311d corresponding to 23d are formed.

The core material 330 is a core material capable of taking two third intermediate core materials 23.

When the core material 330 is molded, as shown in FIG. 15, the core material 330 is arranged so as to face the longitudinal direction of the roll 310 with respect to the axial direction of the roll 310, and is sandwiched between the pair of rolls 310 for transportation.

Then, as shown in FIG. 16, the core material 330 discharged from between the pair of rolls 310 is divided into two by the cutter member 320 from the center in the thickness direction, so that the third intermediate core material 23 The core material of the shape of can be molded into two pieces.

According to the third embodiment, the pair of rolls 310 differ in the surface shape of the third intermediate core material 23 along the roll axis direction in the characteristic mattress processing method. By forming a plurality of molding regions of the uneven portion and transporting the core material 330 by sandwiching it between a pair of rolls 310 along the longitudinal direction of the mattress, a plurality of regions having different surface shapes are simultaneously integrated with the core material 330. Can be molded into. As a result, the core material 330 is cut into two parts in the thickness direction by the cutter member 320, so that two third intermediate core materials 23 can be produced by one molding process.

The present invention is not limited to the above-described embodiments and modifications, and various modifications can be made within the scope of the claims. That is, an embodiment obtained by combining technical means appropriately modified within a range that does not deviate from the gist of the present invention is also included in the technical scope of the present invention.

The side land and mattress of the present invention can be used for mattresses used for medical, nursing care, home beds and the like.

1 Laminated mattress 2 Side ground 3 Side edge member (side core material)
4 Stopper member 11 1st surface core material 12,112 2nd surface core material 20 Intermediate core material 21 1st intermediate core material 22 2nd intermediate core material 23 3rd intermediate core material 23a 1st region 23a1 , 23b1,23c1,23d1 Concavo-convex part 23b Second area 23b2 Sacral shape 23c Third area 23d Fourth area 31 Convex part 32 Slit 32a First slit 32b Second slit 101 Laminated mattress 310 Roll 311a First Molding area 311b Second molding area 311c Third molding area 311d Fourth molding area 320 Cutter member 330 Core material

Claims (8)

A laminated mattress that uses multiple core materials,
A first surface core material constituting one side of the front and back surface layers,
The second surface core material constituting the other side and
An intermediate core material arranged between the first surface core material and the second surface core material,
With
As the intermediate core material, at least
With the first intermediate core material adjacent to the inside of the first surface core material,
With the second intermediate core material adjacent to the inside of the second surface core material,
A third intermediate core material arranged between the first intermediate core material and the second intermediate core material, and
With
Adjacent core members each other have a different function,
The third intermediate core material, the product layer mattress, characterized in that configured than other core members with high hardness core. A laminated mattress that uses multiple core materials,
A first surface core material constituting one side of the front and back surface layers,
The second surface core material constituting the other side and
An intermediate core material arranged between the first surface core material and the second surface core material,
With
As the intermediate core material, at least
With the first intermediate core material adjacent to the inside of the first surface core material,
With the second intermediate core material adjacent to the inside of the second surface core material,
A third intermediate core material arranged between the first intermediate core material and the second intermediate core material, and
With
Adjacent core materials have different functions and
As the first surface core material, a core material having a hardness lower than that of the second surface core material is used.
A high-resilience core material is used as the first intermediate core material.
As the second surface core material, a core material having low hardness and high resilience is used.
As the second intermediate core material, a core material having at least one of the functions of breathability, water resistance, heat resistance and chemical resistance is used.
The laminated mattress according to claim 1, wherein a core material having a high hardness is used as the third intermediate core material. A laminated mattress that uses multiple core materials,
A first surface core material constituting one side of the front and back surface layers,
The second surface core material constituting the other side and
An intermediate core material arranged between the first surface core material and the second surface core material,
With
As the intermediate core material, at least
With the first intermediate core material adjacent to the inside of the first surface core material,
With the second intermediate core material adjacent to the inside of the second surface core material,
A third intermediate core material arranged between the first intermediate core material and the second intermediate core material, and
With
Adjacent core materials have different functions and
The third intermediate core material is a laminated mattress having a function of dispersing a load according to a part of a user and a function of making the core material itself easy to bend. The surface shape of the second surface core material laminated mattress according to claim 3, characterized in that it has a surface shape similar to the shape of the third intermediate core material. The laminated mattress is provided with a high-hardness side core material inside the side end along the longitudinal direction of the mattress.
The laminated mattress according to any one of claims 1 to 4 , wherein the side core material has slits formed along the lateral direction of the mattress. The slit is laminated mattress according to claim 5, characterized in that the laminated mattress is formed at a position displaced from the point of deformation by bending the foot side of the laminated mattress. The laminated mattress according to claim 5 or 6 , wherein the side core material is formed by stacking two layers on the upper and lower sides. The laminated mattress according to claim 7 , wherein the side core material has the slits arranged so as to face each other.

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