JPH0620505Y2 - Floor rub prevention mat - Google Patents

Description

[Detailed Description of the Invention] [Industrial field of application] The present invention is a mat for preventing floor rubbing caused by a sick person who is unable to move his / her body and stays asleep for a long period of time. By removing the seasickness symptom associated with the sickness as much as possible, it is possible to more effectively prevent the occurrence of blood stasis, which is a factor of bed rubs at the same time. Moreover, depending on the temperature and humidity of the bed, which is a factor that promotes bed rubs. The present invention relates to a floor-rubbing-prevention mat configured so as to more reliably ensure the drying necessary for suppressing the growth of bacteria.

[Prior Art] Conventionally, an air mat has been generally used as a floor rubbing prevention mat, but as this kind of conventional air mat E ₁ ,
As shown in FIGS. 5 and 6, each of the first air chamber group A ₁ and the second air chamber group B ₁ is provided with a large number of inflatable and defensible air chambers 101 or 105 and a conducting portion 102 or 106. At least one inflatable / defletable air chamber 10 to one side via a conducting portion 103 or 107 to each of the air chambers 101 or 105 in series connected through
4 or 108 has a side row to which they are connected, the first of which
The air chambers 101 and 104 of the air chamber group A ₁ and the air chambers 105 and 108 of the second air chamber group B ₁ are arranged in a puddle shape, and the first air chamber group A ₁ and the second air chamber group A ₁ The same applicant as the present application has provided a structure in which the air chamber group B ₁ is alternately supplied and exhausted (Japanese Patent Application No. 63-11).
6259).

In addition, as shown in FIG. 7, the air mat E ₂ has tubular air bags 1a, 1b, 2a, 2b .... 5a, 5b which are inflatable and contractible and which are arranged in parallel to each other. , 1b ~ 5a, 5b,
Air bag group A ₂ that connects the air bags 1a to 5a arranged in a row at one end side
And the remaining air sacs 1b to 5b on the other end side to connect the air sacs group B ₂
The air sac groups A ₂ and B ₂ of the two systems are divided into _two groups, and the structure in which the respective air sac groups A ₂ and B ₂ are alternately inflated and deflated is quite commonly performed, and the air In the mat E ₂ , a plurality of rows of air sacs 1a, 1b to 5a, 5b
There is provided a bed in which a large number of fine holes 120 for constantly injecting air are provided to keep the bed in a dry state (for example, JP-A-60-31752).

[Problems to be Solved by the Invention] An air mat E ₁ as shown in FIG.
In the first and second air chamber groups A ₁ and B ₁
Since 1,104,105,108 are formed in individual units, when air is supplied, the surface expands into a hemispherical shape, and as shown in FIG. This bulge gives a feeling of movement of the air chamber as it expands and contracts due to air supply and exhaust, and such a feeling of movement of the air chamber is not only uncomfortable but also causes seasickness. Moreover, there is a problem in that the central convex portion of the air chamber exerts local hard and strong pressure to cause congestion.

Further, in the air mat E ₂ shown in FIG. 7, since the air sacs 1a, 1b to 5a, 5b in each row arranged every other row are in the shape of a straight tube, the air sacs 1a, 1b to 5a, 5b in each row. Are arranged in a cage shape and give a feeling of sea sickness due to the wave phenomenon associated with the expansion and contraction of the air sacs, and at the same time a high pressure is applied on the ridges of the air sacs 1a, 1b to 5a, 5b that are the contact surface of the body in the expanded state where air is supplied. Then, it gives hard and strong pressure to the body, and the air sacs 1
Even if a, 1b to 5a, 5b are expanded and contracted alternately, it tends to promote congestion by repeatedly pressing the same part of the body periodically over a long period of time. An air mat E ₂ in which the air sacs 1a, 1b to 5a, 5b each having a straight tubular shape as shown in FIG.
, The air discharged from the micropores 120 is air sacs 1a, 1b-5
It is a linear and monotonous thing that only flows between the grooves between a and 5b,
There is a problem that it is not possible to obtain sufficient dryness that is necessary for suppressing the growth of bacteria.

The present invention has been made in view of the above problems of the prior art, and an object thereof is to expand surfaces of the air chambers of the first air chamber group and the air chambers of the second air chamber group. The air should be kept as flat as possible to prevent the air chamber from moving due to expansion and contraction, and at the same time to prevent local pressure on the body. An object of the present invention is to provide a floor-rubbing-preventing mat that guides the material in a zigzag manner around the bed so that the bed can be more surely dried by the flow of air having a multi-directional curvature.

[Means for Solving the Problems] In order to achieve the above object, the floor-rubbing prevention mat according to the present invention is a first air chamber in which a large number of individual air chambers that can be expanded and contracted are connected by an air communication path. In the air mat which is divided into two systems of a first air chamber group and a second air chamber group, and air supply and exhaust are alternately performed to both air chamber groups from one end of each air chamber group. And the individual air chambers of the second air chamber group are arranged so as to form a puddle shape, and the air chambers are provided with a joint portion in which the front material and the back material are adhered to each other in the central portion of each air chamber. The air chamber is formed as an individual air chamber that expands in a ring shape, and at least one surface of each of the air chambers of both air chamber groups is formed with minute holes for constantly ejecting air in the air chamber.

[Operation] The air chambers of the first air chamber group and the air chambers of the second air chamber group are formed as individual units and are connected to each other through the conducting portion, and the first air chamber group and the second air chamber group are connected. By arranging the air chambers in a puddle shape, even if air is supplied to and exhausted from the air chambers of the first air chamber group and the second air chamber group alternately, it causes a state like seasickness without giving a wave phenomenon. Never. The center of each air chamber is bonded to each other, so when air is supplied, the center of each air chamber bulges like a ring and the inflation surface of the air chamber is flat. Since it makes a flat and soft surface contact with the body, it can prevent the body from feeling the motion sickness without feeling the operating state where the air chamber expands and contracts, and at the same time expands in a ring shape and expands the surface. The flat individual air chambers of the can also avoid the occurrence of congestion due to local compression without providing local compression. Further, since the air chambers of the first air chamber group and the air chambers of the second air chamber group are formed individually and connected through the conducting portion,
Between the plurality of air chambers arranged in a puddle shape, there is a groove having a detour and another direction that goes around the contours of the air chambers adjacent to each other, and the air discharged from the micropores is It flows in a zigzag pattern around the outer shell, forming a complicated flow with a diversion and other directions, and it is an ideal dry enough to suppress the growth of bacteria by efficiently removing temperature and humidity for each air chamber. Can be ensured more reliably.

[Embodiment] An embodiment of the present invention will be described below with reference to the drawings.

In FIG. 1, an air mat E is inflatable and defensible to one side through a conducting part 3 to each series connecting the series and the series connecting the plurality of inflatable and deflatable air chambers 1 through a conducting part 2. First air chamber group N having side rows for connecting the various air chambers 4
Similarly, a plurality of air chambers 5, which are also expandable and contractible, are connected in series via a conducting portion 6 and a conducting portion 7 is connected to each of the air chambers 5 connected in series.
To one side through the air chambers 4 in the side row of the first air chamber group N.
The second air chamber group M having side rows for connecting the air chambers 8 capable of expanding and contracting corresponding to the first air chamber group N by facing the air chambers 4 and 8 of the respective side rows. The air chambers 1 and 4 and the air chambers 5 and 8 of the second air chamber group M are arranged in a puddle type,
These first air chamber groups N _{1 to} Nn and second air chamber groups M _{1 to} M
n and can be arranged every other row. Then, the first air chamber group N
The air chambers 1 and 4 and the air chambers 5 and 8 of the second air chamber group M are, as shown in an enlarged view in FIG. 2, a table material 9 at the center of the air chambers 1, 4, 5 and 8. Formed by providing a joint 11 to which the backing material 10 is adhered, and when air is supplied, the air chambers 1, 4, 5, 8 expand at the outer peripheral portion centering on the joint 11 and dent at the center. Are formed as individual air chambers that expand in a ring shape, and the expansion surfaces that expand in a ring shape in each of these air chambers 1, 4, 5, 8 are made flat and soft in general, and these air chambers 1 , 4, 5 and 8 are provided with microscopic holes 12 for constantly ejecting air in the air chamber at arbitrary positions on at least one of the surfaces.

The plurality of first air chamber groups N _{1 to} Nn and the second air chamber group M ₁
To Mn are air sacs 13 and 14 arranged on one side and the other side of the air mat E from the air chambers 1 and 5 located at the ends of the series.
Are connected to each other and are divided into two systems, a system of the first air chamber group N _{1 to} Nn and a system of the second air chamber group M _{1 to} Mn.
Then, the first and second air chamber groups N _{1 of} these two systems
~Nn and M ₁ to Mn are to perform the exhaust from the connection port 15, 16 provided in each of the air sacs 13 and 14 and the supply of air.

The air mat E is made by superposing two sheets of a front material 9 and a back material 10 made of a thermoplastic synthetic resin material such as polyvinyl chloride or polyurethane resin, and applying ultrasonic or high frequency vibration. It is formed by a welding method, and the air chamber is formed as well as the surface material 9 at the center of the air chamber.
It is preferable that the backing material 10 and the backing material 10 are bonded to each other to easily provide the joint 11.

The size of the joint portion 11 varies depending on the size of the air chambers 1, 4, 5, 8 when forming the air matte E, but the air chambers 1, 4, 5, 8 should be flattened as a whole. It's enough. However, in order to make the air chambers 1, 4, 5, 8 bulge flat as a whole, for example, as shown in FIG. The distance between the left and right sides p and q of 8 which are symmetrical to each other is about 7 ^cm ,
The diameter of the joint portion 11 is preferably formed to be approximately 1 and 5 ^cm , and the number of the series air chambers 1 of the first air chamber group N can be determined in light of the standard size of the bed and the expansion and contraction operation accompanying the air supply and exhaust. 8
It is preferable that the number of the serial air chambers 5 in the second air chamber group M is seven.

Also, if the amount of air ejected from one minute hole 12 is too large, or if the amount of air flowing through the entire air matte E is too large, it may make you feel cold and harm your body. The amount of air ejected from one micropore 12 is 100m
The number of the micropores 12 in the entire air matte E is 1 as the micropores that are about 1 / min to 1000 ml / min.
It is preferable that about 0 to 80 pieces are provided so as to be distributed over the entire surface of the air mat E, and the total air ejection amount is 5000 ml / min or more.

In this embodiment, as shown in FIG.
The individual micropores 12 are provided on the air mat E in a position corresponding to the position where the body is to be laid down, and the air volume ejected from one micropore 12 is approximately 1000 ml / min. The total amount of air ejected from this is formed as 28l / min, and in the clinical test using this air mat,
It was possible to obtain a dry state sufficient to suppress the growth of bacteria without feeling the discomfort caused by the jet of air.

Furthermore, the first air chamber group N and the second air chamber group M need not be provided with the side chambers 4 and 8 in the in-situ chambers 1 and 5 as shown in FIG. As shown in FIG. 4, it is formed only by the air chambers 1'and 5'in series, and the air chambers 1'and 5'of the first air chamber group N and the second air chamber group M are formed in a puddle shape. Of course, they may be arranged and formed.

[Advantages of the Invention] Since the present invention is configured as described above, when air is supplied to and exhausted from the first and second air chamber groups alternately, a large number of rows of air chambers are arranged every other row. A large number of air chambers that expand and contract alternately and become columns are alternately expanded and contracted in alternate rows, and a large number of air chambers in either one of the air chamber groups always expand in rows and columns to support the human body and move up and down. It does not feel the sway of the movement, and in particular, the air chambers connected via the conducting part do not bulge in a convex shape due to the joint part of the central part, but bulge in a ring shape with a concave central part and become soft overall. It swells flat, becomes a flat and soft surface contact with the body, does not give a feeling of movement of the air chamber, does not cause an uncomfortable state such as sea sickness, and can avoid local congestion . Further, the air ejected from the micropores can effectively remove the temperature and humidity of the bed, which promotes the growth of bacteria, for each air chamber, to obtain ideal drying.

[Brief description of drawings]

FIG. 1 is a plan view showing an air mat, FIG. 2 is an enlarged plan view of an essential part, FIG. 3 is an enlarged sectional view of an essential part of an air chamber shown in an expanded state by supplying air, and FIG. 4 is the present invention. FIG. 5 is a plan view of a part of an air mat showing another embodiment according to the present invention, FIG. 5 is a plan view of a main part of a conventional floor-rubbing prevention mat, and FIG. 6 shows an expanded state of the air mat of FIG. FIG. 7 is a plan view showing still another conventional floor-rubbing prevention air mat. N: first air chamber group, M: second air chamber group 1,4,5,8 ... air chambers 2,3,6,7 ... conducting part, 9 ... table material 10 ... Backing material, 11 …… Joint part, 12 …… Micropore

Claims (1)

[Scope of utility model registration request] 1. A large number of air chambers that can be expanded and contracted individually are divided into two systems, a first air chamber group and a second air chamber group, which are connected by an air communication path, and alternate into both air chamber groups. In the air mat for supplying and exhausting air from one end of each air chamber group, the air chambers of the first air chamber group and the individual air chambers of the second air chamber group are formed into a puddle type. The air chambers are formed as individual air chambers that bulge in a ring shape by providing a joint portion in which the front material and the back material are adhered at the center of each air chamber, and each air chamber of both air chamber groups. A floor-rubbing-prevention mat formed by forming microscopic holes for constantly blowing air in the air chamber on at least one surface of the mat.