JP6648220B2 - Mattress equipment and bed equipment - Google Patents

Description

  The present invention relates to a mattress device used by being placed on a placing surface such as a bottom or a floor, and a structure of a bed device on which the mattress device is placed.

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

  For example, in a mattress disclosed in Japanese Patent Application Laid-Open No. 2007-82861 (: Patent Document 1), an airbag that supports the back and waist is inserted between upper and lower air cells of the mattress, so that the sleeping comfort is not deteriorated and the body is reduced in volume. 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 the thigh increases, thereby stabilizing the buttocks of a person. The body pressure can be efficiently dispersed while suppressing the thickness of the mattress.

JP-A-2007-082861 JP 2011-160892 A

  The thicker the mattress, the more the user can sink, and the area of contact between the mattress and the body can be increased to reduce the pressure on the body.

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

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

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

  In view of such circumstances, an object of the present invention is to provide a mattress device and a bed device that can increase a contact area between a mattress and a body and increase a supporting force regardless of a physique of a bed user.

  In the mattress device of the present invention, a support cell that can be expanded and contracted by feeding and discharging a fluid is provided on the left and right sides of a user of the mattress, and provided on the left and right sides of the user, inside or below the mattress. The support cell is expanded by supplying a fluid to increase a contact area with a user.

  In the mattress device of the present invention, a support cell that can be expanded and contracted by feeding and discharging a fluid is provided in a mattress or a lower portion of the mattress at a position facing left and right of a user of the mattress, The support cells at the positions facing left and right are expanded by supplying the fluid to increase the contact area with the user.

  According to the mattress device of the present invention, a support cell that can be expanded and contracted by feeding and discharging a fluid is provided at a position surrounding a predetermined area of the mattress inside or below the mattress, and the fluid is supplied to the support cell. Since the mattress is deformed so as to wrap around the predetermined area by feeding, it is possible to deform the mattress so as to wrap over the predetermined area by expanding the support cells without increasing the thickness of the mattress. it can.

  Therefore, a part of the user's body on a predetermined area on the mattress, such as the waist and the back, can be wrapped, and an excellent effect of increasing the contact area of the mattress can be obtained.

It is an explanatory view which looked at the mattress device concerning a 1st embodiment of the present invention from the top. It is an explanatory view of a state where a mattress of a mattress device concerning a 1st embodiment is put on a bottom. It is operation | movement explanatory drawing which cut the mattress of the same mattress apparatus longitudinally, (a) is each explanatory drawing when a support cell is contracted, and (b) is when a support cell is expanded. It is explanatory drawing of the state which lifted the mattress apparatus and expanded the support cell, (a) was seen from the side, (b) was seen from the front, (c) was seen from the front. It is an explanatory view of a support state. It is explanatory drawing of the body pressure value distribution of the same mattress apparatus, (a) is explanatory drawing before the side up, (b) is explanatory drawing of the body pressure value distribution after the side up. It is explanatory drawing of the mattress apparatus which concerns on 2nd Embodiment of this invention. It is an explanatory view of a mattress device according to a third embodiment of the present invention. It is an explanatory view of a mattress device according to a fourth embodiment of the present invention. It is an explanatory view of a mattress device according to a fifth embodiment of the present invention. It is an explanatory view of a mattress device according to a sixth embodiment of the present invention. It is an explanatory view of a mattress device according to a seventh embodiment of the present 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 an explanatory view of a mattress device concerning a tenth embodiment of the present 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 a first embodiment of the present invention. FIG. 3 is an operation explanatory diagram of the mattress device of the first embodiment. FIG. (B) is an explanatory diagram when the support cell is expanded. FIG. 4 is an explanatory diagram when the support cell is expanded by raising the back of the mattress device, and FIG. 5 is an explanatory diagram of a 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 a bottom 10 and a user (indicated by reference numeral “u”) rides on the mattress 12. In the bottom 10, 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 rises and falls (raises and lowers). With the mattress 12 placed on the bottom 10, the back bottom 10a rises and falls. When the user rests on the mattress 12 and raises the back bottom 10a, a support cell 18 described later expands, and it is possible to reliably hold the waist portion u1 of the user u.

  The mattress 12 is an air mattress in which a plurality of hollow columnar air cells 12a are arranged, and the air cells 12a are covered by a cover 14 from the front surface to the back surface. A plurality of the air cells 12a are arranged and fixed in the longitudinal direction of the mattress 12 in a state where the length direction thereof is along the short 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 (denoted by “L”) on the head side and the foot side (denoted by “H” and “F”), and has a width direction. This is a short lateral direction (indicated by the symbol “W”). The air cell 12a having the same length as the width direction of the mattress 12 is arranged from the end on the head side to a position just before the installation location of the pump body 16.

  In the mattress 12, compressed air (an example of a fluid) is sent from the pump body 16 to the air cells 12a via the hose 16a, and the air cells 12a are expanded. Shrink.

  The pump body 16 is formed of an air compressor and a valve, and is disposed on one side in the short direction of the foot side end. The air cell 12a adjacent to the pump body 16 has a width corresponding to the width of the pump body 16. Are formed shorter than the short direction of the mattress 12.

  The air cell 12a has a bag shape made of resin, and is fixed inside the cover 14 by a loop or a hook (not shown).

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

  The mattress 12 is made deformable by supplying compressed air to the support cell 18 so that the periphery of a predetermined area protrudes.

  In detail, in the first embodiment, as shown in FIGS. 1 to 3, a predetermined area of the mattress 12 is set to a region where a user's waist (a user's hips when the upper body is raised) u1 rides (a corresponding region). Example 12b), and a pair of support cells 18 are arranged at a position surrounding the area 12b on the waist bottom 10b at an interval in the width direction (W) of the mattress.

  Before the compressed air is sent in the raised state, the support cell 18 is in a flat and contracted state as shown in FIG. The support cell 18 does not lift the mattress 12. The waist u1 of the user is slightly sunk into the mattress 12 due to the weight, but in this state, it is not wrapped under the waist u1 and the holdability is low.

  On the other hand, when the compressed air is sent to the support cell 18 to expand the support cell 18, the mattresses 12 at the positions on both sides of the user's waist are lifted (side) as shown in FIGS. 3B and 4A. Up), the contact area of the waist portion u1 increases in the short direction of the mattress 12.

  As described above, the supporting force in the short direction of the mattress 12 is increased, so that the mattress 12 is also strong against the bottom of the user's body (such as the buttocks), so that the entire mattress 12 can be reduced in pressure and the contact area can be increased. Become. Therefore, it is possible to more deeply support (support) as compared with the case without the support cell 18.

  The following operation and effect are further achieved by the above operation and effect.

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

  Even when the compressed air is not supplied to the support cell 18 in the mattress 12, the waist portion u 1 is sunk to some extent as shown in FIG. Accordingly, as shown in FIGS. 3B and 4A, the mattress 12 can be supported so that the side of the mattress 12 moves up and wraps around the waist portion u1.

  FIG. 5 illustrates a detection result in which the contact area increases due to side-up and the body pressure value (the magnitude of the pressure applied to the body) decreases in the supine position or the back-up position. For example, when the contact area was not increased, the contact area was 29.3 dm2 and the peak body pressure value was 36.4 mmHg. However, the contact area became 32.8 dm2 and increased by 13%, and the peak body pressure value was 29. It was 8 mmHg, a decrease of 16%. Looking at the distribution of body pressure values, when the side was not raised, the pressure was distributed in the range from the buttocks to the back as shown in FIG. 5 (a). However, as shown in FIG. The pressure was distributed over a wide range where the buttocks could ride.

  In addition, the side-up wraps both sides of the buttocks, thereby increasing the stability when raising the back and increasing the angle at which the body can be supported. Specifically, as shown in FIGS. 4B and 4C, the maximum angle from the vertical direction in which the user's body is held without falling down is measured by side-up by the support cell. From 22 ° when not up, it increased to 29 ° by side up.

  In addition, since the mattress 12 is not a sinking type but a type in which the periphery of the body rises due to the expansion of the support cells 18, a displacement due to the sinking when raising the back is unlikely to occur.

  In addition, the conventional positioning pillow, which is required on both sides of the buttocks for positioning in a supine position or on the back, and is placed on a mattress, is not required.

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

  In addition, by reading the angle information of the bed, the support cell 18 can be inflated to a hardness and a size corresponding to the angle, and can be set to an optimal posture.

  In addition, by reading the height information of the bed, the support cell 18 can be expanded to have a hardness and size corresponding 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 cells 18 are inflated on the lower surface of the mattress 12, the contact area can be increased regardless of the user's physique.

  Furthermore, the stability of the end sitting position can be enhanced 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. However, the contact point can be changed in the short direction by expanding and contracting the support cell 18.

  Therefore, it is understood that the contact area of the waist (such as the buttocks) is increased, the body pressure value is reduced, and the body pressure is dispersed.

  In addition, the support cell 18 can also be inflated on only one side in accordance with the physical condition of the user such as contraction of the lower limbs or the condition such as assistance with meals.

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

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

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

  Specifically, a portion 18a in which the support cell 18 is disposed on both sides in the short direction of the mattress with the waist portion u1 of the user u interposed therebetween, and a portion 18b in which the foot side ends of the portion 18a are disposed on the thigh so as to connect the ends thereof. Consists of Although these parts are communicated with the air passages, 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 disposed up to the thigh portion 18b, the thigh portion 18b functions as a waist stopper when the user lifts his / her back, and the user can move in the foot direction. Can be further prevented.
Others are the same as the first embodiment.

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

  In this mattress device, as shown in FIG. 7, the support cells 18 are arranged so as to form a substantially rectangular shape at a position surrounding a region corresponding to the waist portion u1 of the user of the mattress 12.

  Specifically, the support cell 18 is arranged on both sides in the width direction of the mattress with the waist part u1 of the user u interposed therebetween, and the thigh part and the waist part are connected to connect the foot side end and the head side end of the part 18a. It consists of parts 18b and 18c arranged on the back side.

According to the third embodiment, since the support cell 18 is disposed up to the thigh portion 18b and the back of the buttocks, it serves as a stopper that surrounds the waist from all sides when the back is raised, and the user is displaced. Can be further prevented.
Others are the same as the second embodiment.

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

  In this mattress device, as shown in FIG. 8, the support cell 18 is provided with a substantially C-shape at both ends in the short direction of the mattress 12 at a position surrounding a region corresponding to the waist part u1 of the user of the mattress 12. It is arranged to form.

  Specifically, the support cells 18 are arranged in pairs on both sides in the width direction of the mattress with the waist part u1 of the user u interposed therebetween, and each of the support cells 18 is arranged so as to be inclined in the shape of a letter C with respect to the longitudinal direction of the mattress 12. It was done.

According to the fourth embodiment, since the support cell 18 approaches the buttocks on the foot side, it functions as a stopper installed by the waist when the back is raised, and it is possible to prevent the user from shifting.
Others are the same as the first embodiment.

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

  In this mattress device, as shown in FIG. 9, the support cells 18 are paired with the mattress 12 at both ends in the short direction of the mattress 12 at a position surrounding a region corresponding to the waist u1 from the back u2 of the user of the mattress 12. They are arranged in parallel.

According to the fifth embodiment, since the support cell 18 is close to the head side, it serves as a stopper for supporting the back from the left and right when the user is sleeping, thereby preventing the upper body of the user from shifting.
Others are the same as the first embodiment.

  Next, a mattress device according to a 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, a soft polyurethane foam) and covers the outer surface of the cushion material with a cover. As in the first embodiment, the support cells 18 are arranged at positions surrounding the area corresponding to the waist of the user of the mattress 12 and at both ends in the short direction of the mattress 12.

According to the sixth embodiment, the mattress 12 is different from the one in which a plurality of air cells are arranged as in the first embodiment, and the cushion member is integrated, and the structure is simplified such that the pump body and hose are not required. it can.
Others are the same as the first embodiment.

  Next, a mattress device according to a 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 inserted into the hole 12c1 at the ends of the mattress 12 in the short direction. And a cover 12d made of special urethane (for example, flexible polyurethane foam) is placed on the cover.

The cover 12d made of special urethane is deformed by the support cell 18 incorporated in the urethane frame 12c so as to have a support capability. By changing the hardness of the special urethane of the cover 12d, it is possible to prevent the foot from shifting.
Others are the same as the first embodiment.

  Next, a mattress device according to an 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 a mattress 12 has a rectangular hole 12c1 in the center, a pair of support cells 18 are spaced from the hole 12c1 at the short end of the mattress 12. The cover 20 in which a plurality of air cells are arranged in a plurality from above is covered (covered) on the support cells 18 of the pair.

The air cells of the cover 20 are deformed by the support cells 18 incorporated in the urethane frame 12c to provide a support capability. By changing the internal pressure of the air cell of the cover 20, it is possible to prevent a displacement to the foot side or the like.
Others are the same as the first embodiment.

Here, in the above-described first to sixth embodiments, the mattress 12 has a single-layer structure, and a support cell is provided below the mattress 12. In the seventh to eighth embodiments, the mattress 12 has a single-layer structure. Although the support cells are provided in the holes 12c1 in the structure, the present invention is not limited to these configurations.
That is, it is within the scope of the present invention that the mattress has a single-layer or multilayer structure.
In addition, each of the single or multilayer cushion materials can be appropriately selected and used as 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.

A mattress device according to ninth and tenth embodiments of the present invention will be described with reference to FIGS.
In the mattress device according to the ninth to tenth embodiments, the mattress has a plurality of layers each formed of a cushion material, a layer below the mattress is in contact with the mounting surface, and a layer above the mattress. A support cell is provided between 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, an air cell body 24 is provided in an upper layer, and The support cell 18 is provided between the air cell body 24 and the air cell body 24. A support cell 18 that can expand and contract by supplying and discharging compressed air (an example of a fluid) from the pump body 16 (not shown) is provided at a position surrounding a predetermined area of the mattress 12.

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

  In the mattress device according to the tenth embodiment, as shown in FIG. 14, a mattress 12 is provided with a laminated mattress body 26 including a plurality of cushion 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 that can expand and contract by supplying and discharging compressed air (an 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 made of urethane, polyester, rubber, It can be made of an elastic material such as an elastomer or an air cell (the air cell body 24 or the like).
The 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 cushion material layers of the laminated mattress body and the arrangement of the support cells 18 (the 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 cell 18 and the like can be applied in the same manner as the above-described first to sixth embodiments (FIGS. 1 to 9). The same parts as those in the first to sixth embodiments are denoted by the same reference numerals.

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

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

Reference Signs List 10 Bottom 10a Back bottom 10b Waist bottom 10c Knee bottom 10d Foot bottom 12 Mattress 12a Air cell 12c Urethane frame 12d Cover body made of special urethane 16 Pump body 18 Support cell 20 Cover body made of air cell 22 Base mat 24 Air cell body 26 Laminated Mattress body

Claims (5)

In or mattress lower mattress, the support cells that can expand and contract by feeding and discharge of the fluid, provided on the left and right of the mattress user,
The support cells provided on the left and right of the user, the contact area between the user by expanding and increase the through feed of the fluid,
After the back up, the support cells, when inflated by the delivery of fluid, the mattress and wherein the said mattress was Unishi by which the low pressure. In or mattress lower mattress, provided support cell capable of expansion and contraction by feeding and discharge of the fluid, at a position facing the right and left of the mattress user,
Wherein the position of the support cell facing to the left and right of a user, inflating the support cells and increase the contact area between the user by delivery of the fluid,
The mattress device according to claim 1, wherein the pressure of the mattress is reduced when the support cell is inflated by feeding a fluid after raising the back .   The mattress device according to claim 1, wherein the support cell is deformed such that the mattress is raised by expanding the support cell by feeding a fluid. 4. The mattress device according to claim 1, wherein only one side of the support cells at the left and right positions expands and contracts. 5. A bed device comprising the mattress device according to any one of claims 1 to 4 on a mounting surface on a bottom of the bed device.

Images