JP6865309B2 - Mattress equipment and bed equipment - Google Patents

Description

The present invention relates to the structure of a mattress device or the like that is used by being mounted on a mounting surface such as a bottom or a floor.

When the user sleeps, the mattress device is used by being placed on a mounting surface such as the bottom of the bed device or the floor. Various proposals have been made for such mattresses to improve user comfort and safety.

For example, in the mattress disclosed in Japanese Patent Application Laid-Open No. 2007-82861 (: Patent Document 1), by inserting an airbag that supports the back and waist between the upper and lower air cells of the mattress, the sleeping comfort is not deteriorated and the body size is reduced. Some can be lifted up.

Further, in the mattress disclosed in Japanese Patent Application Laid-Open No. 2011-160892 (: Patent Document 2), the mattress is divided into a plurality of air cell groups in the longitudinal direction, and the pressure on the back and thigh is increased to stabilize the human buttocks. It is supposed to be able to efficiently disperse body pressure while suppressing the thickness of the mattress.

Japanese Unexamined Patent Publication No. 2007-082861 Japanese Unexamined Patent Publication No. 2011-160892

The thicker the mattress, the more the user can sink, increasing the contact area between the mattress and the body and reducing the pressure on the body.

However, if the thickness of the mattress is increased, the relative height of the bed fence with respect to the mattress is lost, and there is a problem that the risk of falling over the fence (side rail) on the side of the bed increases.

Further, in the mattress described in Patent Document 1, if an airbag is inserted under the back or the waist, there is a problem that the size of the airbag does not match depending on the physique of the bed user.

In the mattress described in Patent Document 2, by increasing the pressure on the back and thigh, the buttocks can be kept low and the contact area can be increased while suppressing the thickness of the mattress, but the contact area is mainly in the longitudinal direction of the mattress. However, there was a problem that the contact area and the sense of stability in the lateral direction could not be increased.

In view of such circumstances, the present invention intends to provide a mattress device or the like capable of increasing the contact area between the mattress and the body and increasing the bearing capacity regardless of the physique of the bed user.

The mattress device of the present invention is a mattress device composed of an air cell.
The air cell includes a main cell and a support cell, the main cell is formed along the lateral direction of the mattress, and is arranged in a plurality of rows along the longitudinal direction of the mattress, and the support cells are arranged in a plurality of rows along the longitudinal direction of the mattress. It is formed along the above, and is arranged on the left and right sides so as to sandwich the user in the lower part of the main cell so as to include at least the thigh of the user, and further includes an air cell control device for controlling the air cell. It is a feature.

The mattress device of the present invention is composed of an air cell, and is a mattress device mounted on a bed device having at least a back bottom, a waist bottom, and a knee bottom. The air cell includes a main cell and a support cell. , The main cell is formed along the lateral direction of the mattress and arranged in a plurality of rows along the longitudinal direction of the mattress, and the support cell is formed along the longitudinal direction of the mattress and is the lower part of the main cell. It is characterized in that it is arranged on the left and right so as to include at least the thigh of the user so as to sandwich the user, and further includes an air cell control device for controlling the air cell.

According to the mattress device of the present invention, a support cell capable of expanding / contracting by feeding / discharging fluid is provided in the mattress or in the lower part of the mattress at a position surrounding a predetermined area of the mattress, and the fluid to the support cell is provided. Since the mattress is deformed so as to wrap over the predetermined area by feeding, the mattress can be deformed so as to wrap over the predetermined area by expanding the support cell without increasing the thickness of the mattress. it can.

Therefore, it is possible to wrap a part of the user's body on the mattress on a predetermined area, such as the waist and the back, and it is possible to obtain an excellent effect that the contact area of the mattress is increased.

It is explanatory drawing which looked at the top view of the mattress apparatus which concerns on 1st Embodiment of this invention. It is explanatory drawing of the state which puts the mattress of the mattress apparatus which concerns on 1st Embodiment on the bottom. It is an operation explanatory view which traverses the mattress of the mattress apparatus, (a) is each explanatory drawing when the support cell is contracted, (b) is each explanatory drawing when the support cell is expanded. It is explanatory drawing of the state in which the mattress device was raised back and the support cell was inflated, (a) was seen from the side, (b) was seen from the front, and (c) was seen from the front. It is explanatory drawing of the support state. It is explanatory drawing of the body pressure value distribution of the mattress apparatus, (a) before side-up, (b) is the explanatory view of the body pressure value distribution after side-up. It is explanatory drawing of the mattress apparatus which concerns on 2nd Embodiment of this invention. It is explanatory drawing of the mattress apparatus which concerns on 3rd Embodiment of this invention. It is explanatory drawing of the mattress apparatus which concerns on 4th Embodiment of this invention. It is explanatory drawing of the mattress apparatus which concerns on 5th Embodiment of this invention. It is explanatory drawing of the mattress apparatus which concerns on 6th Embodiment of this invention. It is explanatory drawing of the mattress apparatus which concerns on 7th Embodiment of this invention. It is explanatory drawing of the mattress apparatus which concerns on 8th Embodiment of this invention. It is explanatory drawing of the mattress apparatus which concerns on 9th Embodiment of this invention. It is explanatory drawing of the mattress apparatus which concerns on 10th Embodiment of this invention.

Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings.

1 and 2 are explanatory views of a mattress device equipped with a mattress according to the first embodiment of the present invention, FIG. 3 is an operation explanatory view of the mattress device of the first embodiment, and (a) is a support cell. It is each explanatory drawing when (b) expanded the support cell when it was contracted. FIG. 4 is an explanatory view when the mattress device is raised back and the support cell is expanded, and FIG. 5 is an explanatory view of the body pressure value distribution of the mattress device.

As shown in FIG. 1, the mattress device of the first embodiment has a mattress 12 mounted on the bottom 10 so that a user (indicated by the reference numeral "u") can ride on the mattress 12. In the bottom 10, the portions supporting the back, waist, and legs of the user riding on the mattress 12 from the head side to the foot side are referred to as a back bottom 10a, a waist bottom 10b, a knee bottom 10c, and a foot bottom 10d.

The bottom 10 has a structure in which the back bottom 10a rotates around the waist bottom 10b and undulates (back up / back down). The back bottom 10a undulates with the mattress 12 placed on the bottom 10. When the back bottom 10a is raised while the user is on the mattress 12, the support cell 18 described later expands to ensure that the user u holds the lumbar portion u1.

The mattress 12 is an air mattress in which a plurality of hollow columnar air cells 12a are arranged and covered with a cover 14 from the front surface to the back surface thereof. A plurality of each air cell 12a is arranged and fixed in the longitudinal direction of the mattress 12 with its length direction along the lateral direction (also referred to as the width direction) of the mattress 12. As shown in FIGS. 1 and 2, the mattress 12 has a long longitudinal direction (indicated by the reference numeral “L”) on the head side and the foot side (indicated by the symbols “H” and “F”), and the width direction is It is the short short direction (indicated by the symbol "W"). The air cell 12a having the same length as the mattress 12 in the lateral direction is arranged from the head side end to the position in front of the installation location of the pump main body 16.

In the mattress 12, compressed air (example of fluid) is sent from the pump body 16 to each air cell 12a via a hose 16a to expand each air cell 12a, while the air inside is evacuated to cause the air cell 12a. Shrink.

Further, the pump body 16 is composed of an air compressor and a valve, is arranged on one side of the foot side end in the lateral direction, and the air cell 12a adjacent to the pump body 16 is the width of the pump body 16. Is formed shorter than the lateral direction of the mattress 12.

Further, the air cell 12a is a resin bag-shaped one, and is fixed to the inside of the cover 14 by a loop or a hook (not shown).

Here, as shown in FIGS. 2 and 3, in the mattress device, compressed air (example of fluid) is supplied from the pump body 16 between the bottom 10 and the mattress 12 (corresponding to the lower part of the mattress). A support cell 18 that can be expanded and contracted by discharging is provided at a position surrounding a predetermined area of the mattress 12.

By supplying compressed air to the support cell 18, the mattress 12 is made deformable so that the periphery of the predetermined region protrudes.

Specifically, in the first embodiment, as shown in FIGS. 1 to 3, a predetermined area of the mattress 12 is covered by a region (corresponding area) on which the user's waist (when the upper body is raised, the user's buttocks) u1 rides. Example) 12b, and a pair of support cells 18 are arranged at positions surrounding the region 12b on the bottom 10b of the lumbar region at intervals in the lateral direction (W) of the mattress.

As shown in FIG. 3A, the support cell 18 is in a flat and contracted state before the compressed air is sent in the state of being raised back. The support cell 18 does not lift the mattress 12. The lumbar portion u1 of the user is slightly submerged in the mattress 12 due to the weight, but in this state, the lumbar portion u1 is not wrapped under the lumbar region u1 and the holdability is low.

On the other hand, when compressed air is sent to the support cell 18 to expand the support cell 18, the mattresses 12 at both sides of the user's waist are lifted (sides) as shown in FIGS. 3 (b) and 4 (a). Up), the contact area of the lumbar region u1 increases in the lateral direction of the mattress 12.

Since the bearing capacity of the mattress 12 in the lateral direction increases in this way, it also becomes stronger against the bottom of the user's body (buttocks, etc.), and the entire mattress 12 can be made low pressure to increase the contact area. Become. Therefore, it becomes possible to support more deeply than in the case where the support cell 18 is not provided.

The following effects are further exerted by the above-mentioned effects.

Specifically, as shown in FIG. 3B, when the support cell 18 is inflated, the mattress 12 has a thickness of D = 150 mm, and the support cell 18 has a thickness of h1 = 100 mm.

As shown in FIG. 3A, the lumbar portion u1 is submerged to some extent in the mattress 12 even when the compressed air is not supplied to the support cell 18, but the support cell 18 is further supplied with compressed air. As shown in FIGS. 3 (b) and 4 (a), the mattress 12 can be side-up to support the lumbar region u1.

Further, FIG. 5 will explain the detection result in which the contact area is increased by the side-up and the body pressure value (the magnitude of the pressure applied to the body) is decreased in the supine position and the back raising. For example, when the side-up was not performed, the contact area was 29.3 dm2 and the peak body pressure value was 36.4 mmHg, but the contact area became 32.8 dm2, which increased by 13%, and the peak body pressure value was 29. It became 8 mmHg and decreased by 16%. Looking at the distribution of body pressure values, the pressure was distributed in the range from the buttocks to the back as shown in Fig. 5 (a) when not side-up, but as shown in Fig. 5 (b) due to side-up. , The pressure was distributed over a wide range of the buttocks.

In addition, the side-up wraps both sides of the buttocks, increasing stability when raising the back and increasing the angle at which the body can be supported. Specifically, as shown in FIGS. 4 (b) and 4 (c), the maximum angle from the vertical direction in which the user's body is held without falling is measured by side-up by the support cell. It was 22 ° when not up, but increased to 29 ° due to side up.

Further, since the mattress 12 is not a sinking method but a method in which the circumference of the body is raised by the expansion of the support cell 18, the displacement due to the sinking when raising the back is unlikely to occur.

In addition, the conventional positioning pillow placed on the mattress, which is required on both sides of the buttocks for positioning in the supine position and the back raising, becomes unnecessary.

Since the support cell 18 is incorporated between the mattress 12 and the bottom 10 in the supine position or the back raising, the displacement does not occur unlike the conventional positioning pillow.

By reading the angle information of the bed, the support cell 18 can be inflated to the hardness and size according to the angle, and the optimum posture can be obtained.

Further, by reading the bed height information, the support cell 18 can be inflated to a hardness and size according to the height, and can be wrapped low when the floor height is low and high when the floor height is high.

Since the support cell 18 is inflated on the lower surface of the mattress 12, the contact area can be increased regardless of the physique of the user.

Further, the stability of the end sitting position can be improved by inflating the support cell 18 hard.

Conventionally, the contact point between the user's body and the mattress 12 is changed only in the longitudinal direction of the bed, but the contact point can be changed in the lateral direction by expanding / contracting the support cell 18.

Therefore, it is understood that the contact area of the lumbar region (buttocks, etc.) is widened, the body pressure value is lowered, and the body pressure is dispersed.

The support cell 18 can be inflated on only one side depending on the physical condition of the user such as contracture of the lower limbs and the condition such as meal assistance.

The size and hardness of the support cell 18 can be changed based not only on the angle information and height information of the bed but also on the physical information such as the body pressure value and the presence or absence of contracture and the information such as time.

Next, the mattress device according to the second embodiment will be described with reference to FIG.

In this mattress device, as shown in FIG. 6, the support cell 18 is arranged so as to form a substantially U-shape at a position surrounding the area corresponding to the lumbar region u1 of the user of the mattress 12.

Specifically, a portion 18a in which the support cell 18 is arranged on both sides in the lateral direction of the mattress with the lumbar portion u1 of the user u sandwiched, and a portion 18b arranged in the thigh so as to connect the foot side ends of the portion 18a. It consists of. Although air passages communicate with each other in these portions, they may be independently connected by a hose 16a and compressed air may be supplied from the hose 16a.

According to the second embodiment, since the support cell 18 is arranged up to the thigh portion 18b, the thigh portion 18b acts as a lumbar stopper when the back is raised, and the user can move in the foot direction. It can be further prevented from shifting to.
Others are the same as those in the first embodiment.

Next, the mattress device according to the third embodiment will be described with reference to FIG.

In this mattress device, as shown in FIG. 7, the support cell 18 is arranged so as to form a substantially square shape at a position surrounding the area corresponding to the lumbar region u1 of the user of the mattress 12.

Specifically, the thigh and the lumbar portion so as to connect the foot side end and the head side end of the portion 18a in which the support cell 18 is arranged on both sides of the mattress in the lateral direction with the lumbar portion u1 of the user u in between. It consists of portions 18b and 18c arranged on the dorsal side.

According to the third embodiment, since the support cell 18 is arranged up to the thigh portion 18b and the back side of the buttocks, it acts as a stopper that surrounds the lumbar region from all sides when the back is raised, and the user shifts. Can be further prevented.
Others are the same as those in the second embodiment.

Next, the mattress device according to the fourth embodiment will be described with reference to FIG.

As shown in FIG. 8, this mattress device has a support cell 18 at a position surrounding an area corresponding to the lumbar region u1 of the user of the mattress 12, and has a substantially C-shape at both ends of the mattress 12 in the lateral direction. It is arranged so as to form.

Specifically, the support cells 18 are arranged in pairs on both sides of the mattress in the lateral direction with the lumbar portion u1 of the user u in between, and each is arranged so as to be inclined so as to form a C shape with respect to the longitudinal direction of the mattress 12. It was done.

According to the fourth embodiment, since the support cell 18 is close to the buttocks on the foot side, it acts as a stopper installed by the lumbar region when the back is raised, and it is possible to prevent the user from shifting.
Others are the same as those in the first embodiment.

Next, the mattress device according to the fifth embodiment will be described with reference to FIG.

In this mattress device, as shown in FIG. 9, the support cell 18 is paired with both ends of the mattress 12 in the lateral direction at a position surrounding the area corresponding to the back portion u2 to the waist portion u1 of the user of the mattress 12. It is arranged in parallel.

According to the fifth embodiment, since the support cell 18 is close to the head side, it acts as a stopper that supports the back from the left and right when the user is sleeping, and can prevent the upper body of the user from shifting.
Others are the same as those in the first embodiment.

Next, the mattress device according to the sixth embodiment will be described with reference to FIG.

In this mattress device, as shown in FIG. 10, the mattress 12 uses a cushion material such as urethane (for example, soft polyurethane foam) to cover the outer surface of the cushion material with a cover. Similar to the first embodiment, the support cells 18 are located at both ends of the mattress 12 in the lateral direction at positions surrounding the area corresponding to the waist of the user of the mattress 12.

According to the sixth embodiment, the mattress 12 is an integral part of the cushion material unlike the one in which a plurality of air cells are arranged as in the first embodiment, and the structure is simple such that the pump body and the hose are not required. it can.
Others are the same as those in the first embodiment.

Next, the mattress device according to the seventh embodiment will be described with reference to FIG.

In this mattress device, as shown in FIG. 11, the mattress 12 uses a urethane frame 12c having a rectangular hole 12c1 in the center, and a pair of support cells 18 are spaced in the hole 12c1 at the lateral end of the mattress 12. Is placed and covered with a covering body 12d made of special urethane (for example, soft polyurethane foam).

The support cell 18 incorporated in the urethane frame 12c deforms the covering body 12d made of special urethane to have a support ability. By changing the hardness of the special urethane of the covering body 12d, it is possible to prevent the foot side from being displaced.
Others are the same as those in the first embodiment.

Next, the mattress device according to the eighth embodiment will be described with reference to FIG.

In this mattress device, as shown in FIG. 12, in a urethane frame 12c in which the mattress 12 has a rectangular hole 12c1 in the center, a pair of support cells 18 are spaced from the hole 12c1 at the lateral end of the mattress 12. The pair of support cells 18 is covered (covered) with a covering body 20 in which a plurality of air cells are arranged from above.

The air cell of the covering body 20 is deformed by the support cell 18 incorporated in the urethane frame 12c to have a support ability. By changing the internal pressure of the air cell of the covering body 20, it is possible to prevent the foot side from being displaced.
Others are the same as those in the first embodiment.

Here, in the first to sixth embodiments, the mattress 12 has a single-layer structure, a support cell is provided under the mattress 12, and in the seventh to eighth embodiments, the mattress 12 has a single layer. In the structure, the support cell is provided in the hole 12c1, but the present invention is not limited to these configurations.
That is, it is also within the scope of the present invention that the mattress has a one-layer or multi-layer structure.
Further, each one-layer or multi-layer cushioning material can be appropriately selected and used for an elastic material such as urethane, polyester, rubber, or elastomer, or an air cell.
Embodiments 9 to 10 of the present invention configured from these viewpoints will be described below.

The mattress device according to the ninth embodiment and the tenth embodiment of the present invention will be described with reference to FIGS. 13 and 14.
In the mattress device according to the ninth to tenth embodiments, the mattress has a plurality of layers each formed of a cushion material, the lower layer of the mattress is in contact with the mounting surface, and the upper layer of the mattress. A support cell is provided between the mattress and the lower layer at a position surrounding a predetermined area of the mattress.

Specifically, in the mattress device according to the ninth embodiment, as shown in FIG. 13, the mattress 12 is provided with a base mat 22 as a lower layer, and an air cell body 24 is provided as an upper layer with the base mat 22. A support cell 18 is provided between the air cell body 24 and the air cell body 24. A support cell 18 capable of expanding / contracting by feeding / discharging compressed air (example of a fluid) from the pump body 16 (not shown) is provided at a position surrounding a predetermined area of the mattress 12.

The base mat 22 in the lower layer can have a cushion material made of an elastic material such as urethane, polyester, rubber, or elastomer, or an air cell. The lower surface is brought into contact with the bottom of the bed or the floor surface to support it.
The air cell body 24 in the upper layer has the same configuration as the air mattress in which the air cells 12a are arranged side by side in the above-described first embodiment.
In addition, the arrangement of the support cells 18 and the like can be applied in the same manner as in the above-described first to sixth embodiments (FIGS. 1 to 9). The same reference numerals are given to the same parts as those in the first to sixth embodiments.

In the mattress device according to the tenth embodiment, as shown in FIG. 14, the mattress 12 is provided with a laminated mattress body 26 composed of a plurality of cushioning material layers 26a to 26c, and a support cell 18 is provided between appropriate layers of the laminated mattress body 26. Is provided. A support cell 18 capable of expanding / contracting by feeding / discharging compressed air (example of a fluid) from the pump body 16 (not shown) is provided at a position surrounding a predetermined area of the mattress 12.

The laminated mattress body 26 is formed by laminating a plurality of cushion material layers 26a to 26c, and the cushion material used for the cushion material layers 26a to 26c of each layer is urethane, polyester, rubber, as in the ninth embodiment. It can be made of an elastic material such as an elastomer or an air cell (air cell body 24 or the like).
A support cell 18 is interposed between the cushion material layers, for example, between the lower cushion material layer 26a and the middle cushion material layer 26b. The number of cushioning material layers of the laminated mattress body and the arrangement of the support cells 18 (lower surface side of the lower layer, between the upper layer and the middle layer, etc.) can be appropriately selected.
In addition, the arrangement of the support cells 18 and the like can be applied in the same manner as in the above-described first to sixth embodiments (FIGS. 1 to 9). The same reference numerals are given to the same parts as those in the first to sixth embodiments.

Each of the above embodiments is a preferred example of the present invention, but can be modified within the scope of the present invention. For example, in the example of the fluid supplied / discharged to the support cell, compressed air was used, but in the present invention, a liquid or various fluids can be used.

The mattress device of the present invention can be used as a mattress for various bed devices for medical use, nursing care, etc., or can be installed and used on an appropriate flat surface such as on the floor.

10 Bottom 10a Back bottom 10b Lumbar bottom 10c Knee bottom 10d Foot bottom 12 Mattress 12a Air cell 12c Urethane frame 12d Special urethane cover 16 Pump body 18 Support cell 20 Air cell cover 22 Base mat 24 Air cell 26 Laminated Mattress body

Claims (5)

A mattress device consisting of an air cell
The air cell includes a main cell and a support cell.
The main cells are formed along the lateral direction of the mattress, and are arranged side by side in a plurality of rows along the longitudinal direction of the mattress.
The support cell is formed along the longitudinal direction of the mattress, one end is located near the user's waist, the other end is located near the user's thigh, and the user is placed below the main cell. Arranged on the left and right so as to sandwich
Further, a mattress device including an air cell control device for controlling the air cell. A mattress device that is composed of air cells and is mounted on a bed device that has at least a back bottom, a waist bottom, and a knee bottom.
The air cell includes a main cell and a support cell.
The main cells are formed along the lateral direction of the mattress, and are arranged side by side in a plurality of rows along the longitudinal direction of the mattress.
The support cell is formed along the longitudinal direction of the mattress, one end is located near the user's waist, the other end is located near the user's thigh, and the user is placed below the main cell. Arranged on the left and right so as to sandwich
Further, a mattress device including an air cell control device for controlling the air cell. The mattress device according to claim 2, wherein the support cells are arranged on the left and right at positions corresponding to the waist bottom. The support cells, by expansion, according to any one of claims 1 to 3, characterized in that over the thigh near the waist portion near the user increases the contact area between the user Mattress device. A bed device comprising the mattress device according to any one of claims 1 to 4 on a mounting surface on the bottom of the bed device.

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