JP3549562B2 - Air mat - Google Patents

Description

[0001]
[Industrial applications]
The present invention relates to an air mat.
[0002]
[Prior art]
In the case of a patient or the like who cannot carry out an operation such as a postural change on his own, if the postural change is not occasionally performed by a caregiver, it becomes unfavorable for the patient in terms of bedsores, change of mood and the like.
[0003]
For this reason, several types of air mats have been conventionally proposed as a countermeasure against bedsores.
[0004]
[Problems to be solved by the invention]
For example, a plurality of cylindrical air bags formed of a flexible sheet are provided in parallel, each air chamber is divided into two sets, each set of air bags is communicated with an air hose, and each set of air bags is alternately formed. It is known to change the body position by expanding and contracting. In this case, since each air bag is independent, each air bag must be fixed to a pedestal when manufacturing an air mat. Causes the air bag to protrude.
[0005]
In addition, since the air mat supports the load by the air chamber formed by the soft sheet, the air in the air chamber flows at the load point due to the change of the load load point due to the movement of the user's body. The air mat itself is rapidly displaced. Therefore, stability is impaired.
[0006]
An object of the present invention is to provide an air mat that can solve the above problems.
[0007]
[Means for Solving the Problems]
In order to achieve the above object, according to the present invention, a first side portion of a mat and a second side facing the first side portion are provided inside a mat body including two sheets. A plurality of elongated air chambers are formed by providing a plurality of partitions formed of an elongated partition sheet in a direction perpendicular to the side portions of the mat, and in the first and second side portions of the mat, A partition is welded to the sheet, and a first air flow opening for the elongated air chamber is alternately formed in the first and second side portions, and the first and second side portions are formed in the first and second side portions. Along with the elongate air chamber, an air chamber communicating with the first air flow port is provided, and a plurality of corrugated shapes are provided at positions on the side of the air chamber with respect to the first air flow port. A bulging portion is provided, and the partition sheet is folded in two in the longitudinal direction between the two sheets. The air mat is provided so that a gap is formed between the adjacent partition sheets, and the welding is performed in a state where the two sheets and the partition sheet are overlapped. .
[0008]
Preferably, an elongated partition sheet is folded in two in the longitudinal direction between the two sheets and arranged so that a gap is formed between adjacent partition sheets, and the two sheets and the partition sheet are separated. The welding is performed in an overlapping state, and at this time, a plurality of non-welded portions are formed in the gap.
[0009]
It is preferable that an air chamber communicating with the first air circulation port of the elongated air chamber is provided on a side portion of the air mat in a direction perpendicular to a longitudinal direction of the plurality of elongated air chambers.
In addition, a plurality of bulging portions are provided on a side portion of the air chamber communicating with the first air circulating port of the elongated air chamber to form a wavy shape, and the first air circulating port is provided in the bulging portion. Preferably, it is located.
[0010]
Further, a second air circulation port is provided in a plurality of the partition walls in a portion where the user's head is located to form an independent head air chamber, and an independent head air chamber is provided between the head air chamber and another air chamber. It is preferable to provide a check valve at the bottom.
[0011]
[Action]
According to the air mat of the present invention, a plurality of partitions are provided in the interior of the mat body in a direction perpendicular to the sides of the mat to form a plurality of elongated air chambers, and each partition is formed on the sides of the mat. Welded. For this reason, when manufacturing the air mat, each air chamber can be easily integrated, and since no space is formed between the air chambers, the user does not feel the protrusion of the air bag, and furthermore, Even if the load location changes due to the movement of the user's body, the flow of air in the air chamber is suppressed by the partition walls at the load location, so the air mat itself does not suddenly displace and a sense of stability is obtained. Can be
[0012]
【Example】
Hereinafter, the present invention will be described based on embodiments shown in the drawings.
1 is a plan view of one embodiment of the air mat of the present invention, FIG. 2 is a cross-sectional view of the same embodiment, FIG. 3 is a cross-sectional view taken along line AA of FIG. 1, and FIG. 4 is a partially enlarged view of FIG. .
[0013]
The air mat 1 has two sheets 2 and 3 made of an air-sealing soft material, and the sheets 2 and 3 are formed by welding both sides thereof (both sides of the air mat 1) 1a and 1b. A plurality of elongated partition sheets (partitions) 4 made of the same material as the sheets 2 and 3 are provided therein. As described below, this partition sheet 4 constitutes a partition of the air chamber of the air mat 1, and is welded to the sheets 2 and 3 at both side portions 1 a and 1 b of the air mat 1. 3 and a plurality of elongated rectangular small air chambers (elongated air chambers) 6 are formed between the partition sheets 4.
[0014]
When the partition sheet 4 is welded, as shown in FIG. 2, the partition sheet 4 is disposed between the sheets 2 and 3 in a state where the partition sheet 4 is folded in the longitudinal direction of the partition sheet 4. At this time, the partition sheets 4 are arranged such that a gap d is formed between the partition sheets 4 in a state where the partition sheets 4 overlap each other.
[0015]
FIG. 3 shows a welded portion of one end of the partition sheet 4 (the end on one side 1a side of the air mat 1). At the time of this welding, a plurality of non-welded portions forming openings 7 serving as air flow openings are provided in the gap d between the partition sheets 4, and the other portions are welded. In the drawing, reference numeral 8 denotes a welded portion.
[0016]
When the respective air chambers are numbered in order from the right side in FIG. 1, each welded portion 8 completely blocks the even-numbered small air chamber 6b, and a non-welded portion is provided at the end of the odd-numbered small air chamber 6a. Are provided to form the opening 7.
[0017]
By such welding, an air chamber 9 is also formed on the side 1a of the air mat 1. The air chamber 9 is provided in a direction perpendicular to the longitudinal direction of the plurality of elongated small air chambers 6, and the odd-numbered air chambers communicate with the air chambers 9 on the side portions 1 a through the openings 7. Conversely, each welded portion 8 may completely block the odd numbered small air chamber 6a, and the even numbered 13b air chamber may be communicated with the air chamber 9 of the side portion 1a by the opening 7.
[0018]
In this manner, the opposite end (the end on the side 1b side of the air mat 1) of the small air chamber 6a in which the opening 7 is formed on one side 1a of the air mat 1 is welded. The other end of the small air chamber 6b which is closed and closed at one side 1b of the air mat 1 (the end on the side 1b side of the air mat 1) is formed with an opening 7. ing. An air chamber 10 similar to the above-described air chamber 9 is also formed on the side portion 1b of the air mat 1.
[0019]
The even-numbered small air chambers 6a communicate with each other to form one continuous air system together with the air chamber 9 on one side 1a of the air mat 1, and the even-numbered small air chambers 6b similarly have respective openings. 7 is communicated as an air circulation port to form one continuous air system together with the air chamber 10 on the other side 1b. As described above, the even-numbered small air chambers 6b and the odd-numbered small air chambers 6a form independent air systems, and the two independent air systems are provided with supply / exhaust holes 11 and 12, respectively. Air hoses 11a and 12a are connected to the supply and exhaust holes 11 and 12, respectively, so that air from an air supply source (not shown) can be supplied to the air mat 1.
[0020]
The air chambers 9 and 10 on both sides of the seats 2 and 3 are formed with bulging portions at portions corresponding to the openings 7 of the small air chambers 6 as shown in FIGS. It has been.
[0021]
In addition, openings 7 are not formed in the welded portions at both ends of the plurality of small air chambers 6 on the side where the head of the user of the mat is located (left side in FIG. 1), and each small air chamber 6 is closed. Vent holes (air flow ports) 13 are provided between the air chambers 6 to form independent head air chambers 14. A check valve 15 is provided between the head air chamber 14 and another air chamber.
[0022]
In the air mat having the above configuration, when a time difference is provided between the two air supply / exhaust holes 12 and 13 to alternately supply / exhaust the two air systems, the small air chambers 6a and 6b alternately expand and contract, and the massage effect is reduced. At the same time, the conversion of the load point can be performed. Further, by supplying air of the same pressure to the two air systems, body pressure can be dispersed over a wide range.
[0023]
In the present embodiment, since a plurality of elongated small air chambers 6 are formed as described above, the air flow in the air chamber at the load location is suppressed by the partition sheet 4 when the load location changes, so that the mat Can be prevented from abrupt displacement, and a sense of stability equivalent to a water bed can be obtained.
[0024]
In addition, since the openings 7 on both sides of the sheets 2 and 3 are matched with the bulging shape, air is supplied smoothly when air is sealed through the openings 7. In addition, if a dimensional change occurs in the side portion of the air mat 1, irregular breakage may occur in the side portion of the mat, which may hinder the flow of air. However, the dimensional change is absorbed by the corrugated portion. Thus, occurrence of such irregular folding can be prevented.
[0025]
Further, the head air chamber 14 is provided, and the check valve 15 is provided between the head air chamber 14 and other air chambers. The chamber 14 can be kept in an expanded state.
[0026]
Although the present invention has been described with reference to the embodiments, the present invention is not limited thereto. For example, it will be apparent to those skilled in the art that various modifications, improvements, combinations, and the like can be made.
[0027]
【The invention's effect】
According to the air mat of the present invention, a plurality of partitions are provided in a direction perpendicular to the sides of the mat inside the mat body to form a plurality of elongated air chambers, and each partition is formed on the sides of the mat. The welding has the following effects.
[0028]
(1) Each air chamber can be easily integrated when manufacturing an air mat.
(2) Since no space is formed between the air bags, the user does not feel the air bag protruding.
(3) Even if the load location changes due to the movement of the user's body, the air mat itself does not suddenly displace at the load location, and a sense of stability can be obtained.
[Brief description of the drawings]
FIG. 1 is a plan view of one embodiment of an air mat of the present invention.
FIG. 2 is a sectional view of the same embodiment.
FIG. 3 is a sectional view taken along line AA of FIG. 1;
FIG. 4 is a partially enlarged view of FIG. 1;
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Air mat 1a, 1b Side part 2, 3 Sheet 4 Partition sheet (partition)
6, 6a, 6b Small air chamber (elongated air chamber)
7 opening (air flow port)
8 Welding parts 9, 10 Air chambers 11, 12 Supply / exhaust holes 13 Vent holes (air flow ports)
14 Air chamber 15 Head check valve

Claims (2)

Inside the mat body including the two sheets, a partition elongated in a direction perpendicular to the first side of the mat and the second side facing the first side. A plurality of elongated air chambers are formed by providing a plurality of partition walls formed of a sheet, and at the first and second side portions of the mat, the partition walls are welded to the sheet, and the Forming a first air flow opening for the elongated air chamber alternately on the first and second side portions;
Along the first and second side portions, an air chamber communicating with the elongated air chamber via the first air circulation port is provided,
At the position of the side of the air chamber with respect to the first air circulation port, a plurality of corrugated bulges are provided
The partition sheet was folded in two in the longitudinal direction between the two sheets and arranged so that a gap was formed between the adjacent partition sheets, and the two sheets and the partition sheet were overlapped. An air mat, wherein the welding is performed in a state. A second air flow opening is provided in a plurality of the partition walls in a portion where a user's head is located to form an independent head air chamber, and a backflow is formed between the head air chamber and another air chamber. The air mat according to claim 1, further comprising a check valve.

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