JP2005006956A - Mattress - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a mattress with a ventilating function efficiently transporting heat and moisture confined inside the mattress. <P>SOLUTION: This mattress is formed by airtightly closing the outer circumference of air cells 12 constituting a cushion part by a base sheet 11 and a cover sheet 12. Exhaust holes 17 are opened in arbitrary positions in the side surface of the cover sheet 12; an air supply nozzle 15 for injecting the ventilation air is provided in the opposite side of the exhaust holes 17 across the cushion part composed of the air cells 12; and a ventilation air cell 14 provided with air blowoff holes 16 having a predetermined dimension for blowing off the injected ventilation air outside the air cells. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a mattress with a ventilation function that can efficiently carry out heat and moisture confined in the mattress.
[0002]
[Prior art]
Mattresses for preventing pressure ulcers (bed slippage) such as air mattresses and urethane foam mattresses can achieve a body pressure dispersing effect by supporting the body widely. However, the user may feel discomfort due to stuffiness due to sweating due to an increase in body temperature by supporting the body with the surface.
[0003]
Conventionally, in order to solve such a problem, a mattress for bedding is provided with a ventilating hole (see Patent Document 1) or a ventilation function using a highly moisture-permeable material (Patent Document 2). However, due to the lack of forced ventilation, sufficient effects were not obtained. Moreover, in the mattress for pressure ulcer prevention, the mechanism which blows air toward the body surface is also employ | adopted (refer patent document 3), but a user's body temperature is drastically lowered by blowing a wind directly on a user. Body temperature control is difficult. In addition, it has been pointed out that there is a risk that bacteria will be scattered in clinical settings.
[0004]
[Patent Document 1]
JP 2002-369733 A [Patent Document 2]
Japanese Patent Laying-Open No. 2003-024183 [Patent Document 3]
Japanese Patent Laid-Open No. 10-165259
[Problems to be solved by the invention]
The present invention has been made to solve the above problems, and an object of the present invention is to provide a mattress with a ventilation function capable of efficiently carrying out heat and moisture confined in the mattress.
[0006]
[Means for Solving the Problems]
In order to solve the above problems, the present invention employs the following means.
That is, the mattress according to claim 1 is a mattress in which the outer periphery of the cushion portion formed of an air cell, a resin foam, or the like is hermetically sealed with a covering cloth such as a base sheet or a cover sheet. A ventilating air blowing means for perforating ventilating air into the mattress at a position opposite to the exhausting hole with a cushion portion sandwiched in the venting hole at an appropriate position on the side surface of the covering cloth Is provided.
[0007]
In addition, as the ventilation air blowing means, as described in claims 2 to 4, it is formed into a flat and elongated bag shape that is hermetically sealed, and ventilation air is placed at an appropriate position of the bag-like body. A ventilation air cell having an air supply nozzle for injecting and having an air blowing hole having a predetermined size for blowing out the injected ventilation air, a tube having an air blowing hole in an appropriate position on the circumferential surface, Alternatively, it is preferable to use a structure in which a plurality of T-shaped connectors are connected by a tube and the remaining terminal portion of the T-shaped connector is a small-diameter air blowing hole.
[0008]
In the case of the above configuration, ventilation air is blown into the sealed covering cloth from the air blowing hole provided in the ventilation air blowing means or the air cell itself. The blown-out ventilation air flows toward the exhaust hole of the covering cloth so as to sew the gap inside the mattress, and is discharged from the exhaust hole to the outside of the mattress. The ventilation air sent into the mattress captures the heat and moisture inside the mattress while it flows through the mattress, and carries it out of the mattress, thus increasing the body temperature of the bed user in contact with the mattress. Can be suppressed, and sweating and stuffiness due to an increase in body temperature can be prevented.
[0009]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the drawings.
1 to 6 show a first embodiment of a mattress according to the present invention. 1 is a schematic plan view of a mattress shown with a part cut away, FIG. 2 is a schematic cross-sectional view taken along line II-II in FIG. 1, and FIG. 3 is a schematic view taken along line III-III in FIG. 4 is a schematic perspective view of the mattress viewed from the side surface on the exhaust hole side, and FIG. 5 is a schematic enlarged perspective view showing a cross-sectional structure of the air cell for ventilation.
[0010]
The mattress according to the first embodiment has a plurality of (for example, 20 to 20) along the bed longitudinal direction in a state where the slender bag-shaped air cells 12 are laid on the base sheet 11 in a direction perpendicular to the bed longitudinal direction. About 24 lines) are arranged side by side, and a cover sheet 13 is placed thereon. The base sheet 11 and the cover sheet 13 constitute a covering cloth that airtightly covers the outer periphery of the air cell 12 group constituting the cushion portion, and is sealed so that the air in the mattress cannot pass outside. Yes.
[0011]
The air cell 12 is formed into an elongated bag shape having a substantially oval cross section by, for example, welding or adhering an airtight sheet obtained by coating a resin on a polyurethane sheet or cotton cloth. An air injection nozzle is formed, and an air injection tube or pipe is connected to the air injection nozzle, and air of a predetermined pressure is injected from the air pump prepared near the bed through these tubes and pipes. It can be inflated into an elongated bag shape having a substantially oval cross section. In the first embodiment, an independent air expansion type air cell 12 is used as a cushion portion. Instead of the air cell 12, a resin foam such as an integrally formed air mat or polyurethane foam is used. Is also good.
[0012]
A ventilation air cell 14 for blowing out ventilation air into the mattress is arranged along the bed longitudinal direction on either the left or right side of the base sheet 11 on which the air cell 12 is spread. It is detachably attached to the base sheet 11 or the cover sheet 13 by hooks 19 formed on both sides of the air cell so as not to cause a positional shift.
[0013]
The ventilation air cell 14 constitutes ventilation air blowing means for blowing ventilation air into the mattress, and, like the air cell 12, a polyurethane sheet or an airtight sheet coated with a resin on a cotton cloth is welded or By adhering, it is a flat and slender bag shape, provided with an air supply nozzle 15 for supplying ventilation air to an appropriate position, and at the air cell top surface position with a predetermined interval, A plurality of air blowing holes 16 having a predetermined size (for example, φ0.5 mm) for blowing out air for ventilation are formed. The air supply nozzle 15 is pulled out to the outside of the mattress by a tube 18. By connecting an air pump to the tube 18, ventilation air can be supplied to the ventilation air cell 14.
[0014]
On the other hand, as shown in FIGS. 3 and 4, a plurality of exhaust holes 17 are provided at predetermined intervals on the side wall surface of the cover sheet 12 located on the opposite side of the ventilation air cell 14 with the air cell 14 interposed therebetween. The ventilating air blown into the mattress from the air blowing hole 16 of the ventilation air cell 14 is discharged from the exhaust hole 17 to the outside.
[0015]
The mattress with the above configuration ventilates the air in the mattress as follows, thereby eliminating heat and moisture trapped in the mattress and preventing sweating and stuffiness due to a rise in the user's body temperature. Can sleep and rest.
[0016]
That is, when the mattress is used, first, the air cell 12 constituting the mattress cushion is connected to an air pump through an air injection nozzle (not shown) to be inflated to be usable as a mattress.
[0017]
Next, an air pump is connected to the tube 18 drawn from the air supply nozzle 15 of the ventilation air cell 14, and the supply of air adjusted to a predetermined pressure is started from the air pump. When air of a predetermined pressure is sent from the air pump, the ventilation air cell 14 swells as shown in FIG. 5 due to the pressure, and ventilation air is introduced into the mattress from the air blowing hole 16 formed on the top surface of the air cell 14. Blow out.
[0018]
The ventilation air blown into the mattress flows toward the exhaust hole 17 on the opposite side so as to sew the gap inside the mattress because the entire mattress is airtight, and from the exhaust hole 17 to the outside of the mattress. Is discharged. While the ventilation air sent into the mattress flows through the mattress, it takes in heat and moisture inside the mattress and carries it out of the mattress. For this reason, the body temperature rise in the contact part with the mattress of the bed user such as a patient sleeping on the mattress can be effectively suppressed, and sweating and stuffiness due to the body temperature rise can be prevented.
[0019]
In the first embodiment, the ventilation air is blown out by using the elongated flat bag-like ventilation air cell 14, but the ventilation air blowing means is not limited to this, for example, You may use the ventilation air blowing means as shown in FIG. 6, FIG. FIG. 6 shows an air blowing hole 22 perforated at an appropriate position of the tube 21, and FIG. 7 shows a structure in which a plurality of T-type connectors 23 are connected by a tube 24, and the remaining terminal portion of the T-type connector 23 has a small diameter. The blowing hole 25 is used.
[0020]
Further, the air pump for the air cell 12 and the air pump for the ventilation air cell 14 may be provided independently. However, if an air supply method as shown in FIG. 8 is adopted, the air cell 12 is used by using one air pump. And air can be supplied to both the ventilation air cell 14.
[0021]
The method shown in FIG. 8A uses an air pump 31, a two-path switching type electromagnetic valve 32, and a rotary valve 33. When supplying air to the ventilation air cell 14, the electromagnetic valve 32 is used. Is switched to the ventilation air cell 14 side and air is supplied to the air cell 12, the electromagnetic valve 32 is switched to the air cell 12 side. At this time, the air cell 12 group constituting the cushion portion is divided into a plurality of groups (for example, three groups of A system, B system, and C system), and air is supplied and exhausted while the period is shifted by each group by the rotary valve 33. By performing the above, it is possible to give a wave motion in which the height position changes with time on the surface of the air mattress. As the rotary valve 33 for realizing such wave motion, for example, a rotary valve proposed by the present applicant in Japanese Patent Application No. 11-114712 (Japanese Patent Laid-Open No. 2000-197672) may be used.
[0022]
In the method of FIG. 8B, the solenoid valve 32 is omitted in the method of FIG. 8A, and the ventilation air cell 14 is also incorporated into the output side of the rotary valve 33 as one of the switching groups. Both the air cell 12 and the ventilation air cell 12 are sequentially switched.
[0023]
The method shown in FIG. 8C uses a four-path switching type electromagnetic valve 34 in place of the rotary valve 33 shown in FIG. 8B, and realizes air supply similar to that shown in FIG. 8B. .
[0024]
【The invention's effect】
As described above, according to the mattress of the present invention, the ventilation air is blown into the sealed covering cloth from the air blowing hole provided in the ventilation air blowing means or the air cell itself, and the blown ventilation air is discharged. Since exhaust is made out of the mattress through the exhaust hole formed in the covering cloth, heat and moisture in the mattress can be taken in and taken out of the mattress while ventilation air flows through the mattress. . For this reason, the body temperature rise in the contact part with the mattress of the bed user can be suppressed, and sweating and stuffiness due to the body temperature rise can be effectively prevented.
[Brief description of the drawings]
FIG. 1 is a schematic plan view showing a first embodiment of a mattress according to the present invention, partly cut away.
2 is a schematic cross-sectional view taken along the line II-II in FIG.
3 is a schematic cross-sectional view taken along the line III-III in FIG.
FIG. 4 is a schematic perspective view of the mattress viewed from the side surface on the exhaust hole side.
FIG. 5 is a schematic cross-sectional perspective view showing the structure of a ventilation air cell.
FIG. 6 is a schematic perspective view showing another example of ventilation air blowing means.
FIG. 7 is a schematic perspective view showing still another example of ventilation air blowing means.
FIG. 8 is an explanatory diagram of a method of supplying air to an air cell and a ventilation air cell.
[Explanation of symbols]
11 Base sheet 12 Air cell (cushion part)
13 Cover sheet 14 Ventilation air cell 15 Air supply nozzle 16 Air blowout hole 17 Exhaust hole 18 Tube 19 Hook 21 Tube 22 Air blowout hole 23 T-type connector 24 Tube 25 Air blowout hole 31 Air pump 32 Solenoid valve 33 Rotary valve 34 Solenoid valve

Claims (4)

In the mattress where the outer periphery of the cushion part composed of air cells, resin foam, etc. is airtightly sealed with a covering cloth such as a base sheet or cover sheet,
A side surface of the covering cloth covering the outer periphery of the cushion portion is provided with an exhaust hole at an appropriate position, and ventilation air is blown into the mattress at a position opposite to the exhaust hole with the cushion portion interposed therebetween. A mattress characterized in that it is provided with an air blowing means for ventilation. The ventilation air blowing means is formed into a flat and elongated bag shape hermetically sealed, and includes an air supply nozzle for injecting ventilation air to an appropriate position of the bag-like body, and the injected ventilation 2. The mattress according to claim 1, comprising a ventilation air cell having an air blowing hole having a predetermined size for blowing out the working air. The mattress according to claim 1, wherein the ventilation air blowing means comprises a tube having air blowing holes formed at appropriate positions on the peripheral surface. 2. The mattress according to claim 1, wherein the ventilation air blowing means connects a plurality of T-shaped connectors with tubes, and the remaining terminal portion of the T-shaped connector is formed as a small diameter air blowing hole. .

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