JP2000308547A - Mattress system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a mattress system which can support the body of a sleeping person with good cushion property and good balance. SOLUTION: This system has a two-layer structure of an air mat 5 and a cushion member 4 consisting of a coil spring, the air mat is obtained by dividing first and second air cells plurally disposed in a right/left direction by a right and left air cell parts and a recess part tilt-bent forward/backward, formed in a center. Then, the air mat and a cushion member are housed in a bag 1 with both of their sides surrounded by a frame member 3, and a softening sheet 6 is spread on an air mat. Shock is absorbed by the cushion member, and the distribution of body pressure and a massaging effect are obtained by the air mat. The recess/projection of the surface of the air mat is smoothed by the softening sheet to give a comfortable feeling to the sleeping person.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a mattress device particularly suitable for use by a healthy person.

[0002]

2. Description of the Related Art A mattress device having a two-layer structure in which a cushion member made of a coil spring or the like and an air mat is laid thereon is described in, for example, JP-A-8-299118. This publication discloses a structure in which a spring unit and an airbag are housed in a housing surrounded by a frame in a case whose upper surface is open, and the upper surface of the case is closed by an exterior body. Also, in a mattress device having a two-layer structure of a cushion member and an air mat, a structure in which an air mat is divided into a first inflatable portion and a second inflatable portion and the inflates are inflated and shrunk alternately is also disclosed in, for example, Japanese Utility Model Laid-Open Publication No.
No. 317 is known. It is described that such a mattress device is used as a hospital bed and is used to prevent floor rubbing of a patient who has been bedridden for a long period of time.

[0003]

The above-mentioned publication (Japanese Patent Laid-Open No. 8-
299118), the mattress device disclosed in
Since the air mat is maintained in a state of being inflated to a predetermined pressure, a certain part of the body is constantly pressed, and the massage effect generated by the temporal change of the pressed part cannot be obtained. The mattress device disclosed in the above-mentioned publication (Japanese Utility Model Application Laid-Open No. 57-169317) aims to prevent floor rubbing, and changes the compression site of a patient over time to suppress blood circulation disorders. Nor is it intended for comfort.

The present invention has been made in view of such circumstances, and in order to obtain a stable sleeping state, a structure in which the central portion of the air mat is lower than the left and right portions has been adopted, and a comfortable sleeping state has been achieved. It has been improved so that it can be obtained.

[0005]

According to a first aspect of the present invention, there is provided a mattress apparatus comprising: a bag made of a flexible member having an open upper surface and a fastener attached to an upper edge; A frame member arranged around the interior, a cushion member made of a spring or a foam material housed inside the frame member inside the bag body, an air mat arranged to be superimposed on the cushion member, and laying on the air mat With the relaxed sheet, and laid on the relaxed sheet,
A peripheral member provided with a flexible member having a fastener attached to the fastener of the bag body, the air mat comprising a plurality of elongated flexible air cells alternately arranged in the left-right direction. And an air mat that alternately supplies and exhausts air to and from the first and second air cells, wherein the first and second air cells are respectively located in the left and right air cell portions and in the middle of the left and right air cell portions. And a concave portion located at the center of the air mat.

[0006] In such a configuration, the shock or relatively large deformation force applied to the mattress is absorbed by the cushion member. The air mat also dynamically distributes body pressure, changing the supporting part of the body over time, to obtain a massage effect and minimize blood circulation disorders.

In the mattress device according to the present invention (claim 2), the concave portions at the center of the first air cell and the second air cell are inclined and bent in the front-rear direction, and the left and right air cell portions are shifted in the front-rear direction. It has been done. In such a configuration, for example, when air is supplied to the first air cell, since the right air cell portion and the left air cell portion of one air cell are shifted back and forth, the position for supporting the body of the sleeping person who is lying on the air mat is It is not left-right symmetric but supports different parts, so that the left and right air supply / exhaust operations are performed alternately. In addition, since the inclined bent portion smoothly connects the left and right air cells that are displaced, the air cells are continuous and there is no danger of a steep groove being formed in the middle. Support.

[0008] In the mattress device according to the present invention (claim 3), the air mat is composed of a plurality of divided air mats, and the divided air mats are stored in a storage body for each divided air mat. The split air mat and the storage body are detachably connected to air supply / exhaust tubes disposed on the left and right sides of the air mat, respectively. In such a configuration, each split air mat is
The movement of the air cells and the movement between the divided air mats are regulated by the storage body.

In the mattress device according to the present invention (claim 4), the air supply / exhaust tube has a tube side piece, and the divided air mat and the housing are detachably connected to the tube side piece. Connection means to be attached. In such a configuration, the divided air mat and the storage body are connected to the tube, and the positions of the three members are regulated with each other.

[0010] In the mattress device according to the present invention (claim 5), the supply / exhaust tube and the tube side piece are formed by overlapping and joining two thermoplastic resin sheets. . In such a configuration, when the tube is pressed, the tube is easily deformed into a flat shape.

[0011]

DESCRIPTION OF THE PREFERRED EMBODIMENTS In FIGS. 1 and 2, reference numeral 1 denotes a flat rectangular parallelepiped bag having an open upper surface, which is made of a flexible member such as cloth. Reference numeral 2a denotes a fastener attached to the upper end green of the bag body 1. Reference numeral 3 denotes a frame member arranged around the inside of the bag body 1, which is made of an elastic and lightweight material, for example, a polyurethane foam. This frame member 3
It is desirable that the material has a hardness such that the material is slightly elastically deformed when a person's weight is added. This is because when the human body hits, softness is obtained and at the same time, it has shape maintaining properties. Reference numeral 4 denotes a cushion member having a built-in coil spring, 5 denotes an air mat placed on the cushion member 4 and 6 denotes a relaxation sheet laid on the air mat 5 and has a thickness of about 2 cm having soft elasticity. Sheets made of polyurethane foam can be used. Actually, since the relaxation sheet 6 has a spongy shape and low strength, a nonwoven fabric is adhered to the lower surface thereof and reinforced. Reference numeral 7 denotes a rectangular surface member formed of a flexible member such as a cloth laid on the relaxation sheet 6, the surface of which is quilted, and a fastener 2b is attached to a peripheral end thereof. The zipper 2b is coupled to the zipper 2a of the bag 1, and closes the upper opening of the bag 1. The upper surface of the relaxation sheet 6 is adhered to the lower surface of the surface member 7 with a double-sided tape or the like to be integrated. By opening and closing the fasteners 2a and 2b, the cushion member 4, the air mat 5, and the frame member 3 inside the bag body 1 can be taken out of the bag body 1 or housed therein.

As the cushion member 4, a spring structure or foam rubber used for a normal mattress can be adopted. FIG. 3 shows an example in which a coil spring is used. A large number of bonnel coil springs 8, 8,... Are arranged in a vertical direction, and the upper and lower edges of the outer periphery are surrounded by hard steel wires 9,
.. Are connected to the steel wire 9 by clips 10, 10,. 1
Numeral 1 is a helical spring that is stretched at appropriate intervals in the left-right direction of the upper steel wire 9 (a direction perpendicular to the longitudinal direction of the mattress device), and coil springs 8, 8,. It is linked to ... 12,12
Are two cover members which cover the upper and lower surfaces of the coil springs 8, 8,..., And are made of hard felt. ) To regulate the vertical extension of the coil springs 8, 8,.... The four coil springs 8, 8,... At the four corners are embedded in a barrel-shaped sponge 13. Numeral 14 is a cloth storage body for storing the coil springs 8, 8,... And the cover members 12, 12, and a woven cloth of 100% polyester can be used.

As shown in FIG. 4, the air mat 5 is composed of a first air cell 15a and a second air cell 15b formed in an elongated bag shape by a flexible sheet having air impermeability. The air mat 5 includes a plurality of, for example, seven divided air mats 16a, 16b,..., 16g. In each of the divided air mats 16a, 16b,..., 16g, the first air cell 15a is provided with a communicating portion 1 formed at an end.
The first air cells 15a communicate with each other at 7a, and are connected to the air pump 20 via a supply / exhaust tube 18a and a pipe 19a connected to an end (upper side in the figure) of the first air cell 15a. Similarly, the second air cell 15b also has an end (lower side in the figure).
Are connected to each other via a communication portion 17b formed in the air pump 20 and are connected to an air pump 20 via a supply / exhaust tube 18b and a pipe 19b.

The first and second air cells 15a, 15a
b are alternately arranged in the front-rear direction of the air mat 5, and the air supply and exhaust operations are alternately performed by the air pump 20 at an arbitrary cycle. The first and second air cells 15a, 15a
The inside of b is maintained at an air pressure of about 1/2 of the air supply state even in the exhaust state, and is adjusted so that the difference between the air pressure in the air supply state and the air pressure in the exhaust state does not become extremely large. The air pressure in the supply state is also arbitrarily adjusted according to the user's request such as hardening or softening the feel.

The first and second air cells 15a, 15b are:
Right air cell portions 21 and 22 located on the right side of the cell (lower side in FIG. 4), left air cell portions 23 and 24 and left and right air cell portions 21, 23, 22, and 24 located on the left side (upper side in FIG. 4).
The slanted bent portions 25 and 26 are located in the middle of the air mat 5 and at the center of the air mat 5. The inclined bent portions 25 and 26
Accordingly, the right air cell portions 21 and 22 and the left air cell portions 23 and 24 of the first and second air cells 15a and 15b are smoothly connected and set at positions shifted in the front-rear direction. In the figure, an air cell portion 27 at the front end of the first air cell 15a and an air cell portion 28 at the rear end of the second air cell 15b are shown.
Is an air cell having a size of one-half in the left-right direction. The air cell is configured to form one air cell in the left-right direction together with the air cell parts located on opposite sides, and to eliminate a step in the front-rear direction. It is.

The left and right air cell portions 21, 22, 23, 24 of the first and second air cells 15a, 15b and the inclined bent portion 2
The widths W of the mats 5 and 26 in the direction coinciding with the center line 0 in the front-rear direction are set to be equal. Therefore, the inclined bent portion 25,
The width Wa in the direction perpendicular to the inclination direction of 26 is smaller than the width W, and therefore, the cross section in the width Wa direction is smaller than the cross section in the width W direction of the left and right air cell portions 21, 22, 23, 24. As shown in FIGS.
The cross section is smaller than the left and right air cell portions 21, 23, 22, and 24, and therefore, the height thereof is also low, and a recess 29 is formed here. This height difference is indicated by h. The difference in height between the two is gradual and transitional.

Here, it is desirable that the width W is set in the range of 5 to 15 cm in a completely exhausted state, and the horizontal width of the inclined bent portions 25 and 26 is set in the range of 5 to 20 cm. The reason why the width W is in the range of 5 to 15 cm is to distribute the pressed part and the pressed part at appropriate intervals. The reason why the width of the inclined bent portions 25 and 26 is set within the range of 5 to 20 cm is to allow the user's spine portion to abut with a sufficient margin. 21, 23, 22.2
This is because there is a possibility that both the support 4 and the inclined bent portions 25 and 26 may not be supported.

The positional relationship between the right air cell portion 21 of the first air cell 15a and the left air cell portion 24 of the second air cell 15b (the right air cell portion 22 of the second air cell 15b and the first air cell 1).
5a) is set such that the center line 01 in the longitudinal direction (left-right direction) of the first air cell 15a or the second air cell 15b is aligned in the left-right direction when air is supplied to the first air cell 15a or the second air cell 15b. It is desirable. FIG. 4 shows such a state, in which the right air cell portion 15a and the left air cell portion 1 are provided.
5b is a structure that is bent at the inclined bending portions 25 and 26 in the completely exhausted state. With this structure, the supply air mat 1 is divided into the divided air mats 16a and 16a.
6b,..., Contracts in the direction of the center line 0 every 16 g, and the center line 01 of both air cell portions 21 and 24 becomes a straight line. With such a structure, the first and second air cells 1
When the air supply / exhaust operation is performed alternately on the 5a and 15b, they are alternately pressed and released in the right and left force directions, and the right and left balance is improved.

The angle of inclination θ of the inclined bent portions 25 and 26 (the angle with respect to the horizontal direction) is in the range of 10 to 70 degrees, and the width in the horizontal direction is 5 to 20 as described above.
cm, the left and right air cell sections 21, 23, 2
2, 24 have a width W in the front-rear direction of 5 to 15 cm. When the angle is smaller than 10 degrees, the posterior bend becomes steep in the front-rear direction and the width thereof also becomes narrow, so that the force for supporting the patient is reduced, and the pressure balance with the surroundings is deteriorated. Air cell part 21,
The pressure difference between the air cells 23, 22, and 24 becomes small, and there is a possibility that the spine will be compressed.
3, 22, 24 in the front-rear direction are reduced, and the pressure balance is deteriorated as described in the conventional example. Further, the inclined bent portions 25 and 26 and the left and right air cell portions 21 and 23 are provided.
By setting the dimensions of 22 and 24 within the above range,
At the time of air supply, the left and right air cell portions 21, 23, 22, and 24 can have a positional relationship of being substantially linear in the left and right direction, and the pressed portions can be dispersed at intervals suitable for obtaining a massage action. .

The air mat 5 is formed by laminating a thermoplastic resin sheet, for example, PVC (polyvinyl chloride) on one or both sides of a woven cloth of nylon or the like, and cutting off the air flow.
It is formed by superposing the sheets and joining the air cell boundary lines P by high frequency welding or the like. In addition, when using the cloth which carried out the PVC lamination only on one side of the woven cloth, it is needless to say that the lamination processing surface is used as the joining surface.

The division format 16b, 1 excluding the front and rear ends
Each of the air cells 6c,..., 16f has two air cells of the first air cell 15a and two air cells of the second air cell 15b, which are alternately arranged. Connected in state. The end divided air mats 16a and 16g have a single air cell (divided air mat 16
a, the first air cell 15a for the divided air mat 16g) and 1.5 air cells (the first air cell 15a for the divided air mat 16a and the second air cell 15b for the divided air mat 16g). Have been.

The main part divided air mats 16b, 16
,..., 16f are connected to the first and second air cells 15a, 15a.
The reason why each of the units 5b is a total of four units of two units is as follows. That is, since the first and second air cells 15a and 15b are alternately supplied and exhausted, the first and second air cells 15a and 15a constituting each divided air mat are separated.
The total number of 5b must be an even number, and in this case, four as in the above example, other two, six, eight, etc. are possible. Considering the advantage of efficient replacement, four units are optimal.

That is, when one air cell is formed at a time,
When the sleeper's weight is added, the air cell moves independently, and the shift and movement width are particularly large in the central portion, which may cause the sleeper to feel discomfort. It has been confirmed that this phenomenon also occurs when two air cells are unitized. When four air cells are unitized and formed by joining two cloths, the weight is concentrated and added to one air cell (exhaust air cells are likely to be shifted), and it is attempted to move the air cell. Even if a force is applied, the adjacent air cell connected to the air cell is in the air supply state and tries to prevent the movement, so that the air cell does not significantly shift or move. Note that the inventor has confirmed that substantially the same operation as in the case of four units can be obtained even in the case of six units.

Reference numeral 30 denotes divided air mats 16a, 16b,
... A storage body for storing 16 g, as shown in FIG.
Two rectangular woven fabrics 31, 32 such as a nylon woven fabric and a polyester woven fabric are overlapped to form a divided air mat 16a, 1
6b,..., 16g, which are sewn in accordance with the shape of the air supply state, divided into seven parts,
.., 30g. Open portions 33 are formed at both ends (upper and lower ends in FIGS. 4 and 8) of each of the divided portions 30a, 30b,.
.., 16g are put in and taken out of 3 from the third mat 7a, 16b,. The upper woven fabric 31 is set slightly larger (about 5 cm each on the left and right sides) at the left and right ends (upper and lower ends in FIGS. 4 and 8) than the lower woven cloth 32. Storage body 3
0 prevents the air cells of the divided air mats 16a, 16b,..., 16g from shifting from each other.
16b,..., 16g are regulated,
It functions to prevent the generation of a rubbing sound generated between the divided air mats 16a, 16b,..., 16g. That is, when the storage body 30 does not exist, the divided air mats 16a, 16a
b,..., 16 g are displaced in the vertical and horizontal directions. Also, the split air mats 16a, 16b,
............ The position between 18g is shifted. Split air mat 16
.., 16g cause problems such as generation of an unpleasant rubbing sound between the two. Due to the presence of the housing 30, the divided air mats 16a, 16b,.
6g and its air cell are arranged neatly, its movement is suppressed, and no rubbing noise is generated.

As described above, 18a and 18b are two supply / exhaust tubes arranged on both sides of the divided air mats 16a, 16b,..., 16g, that is, below the communicating portions 17a and 17b, respectively. The tube 18b is connected to the first air cell 15a group and connected to the second air cell 15b group to supply and exhaust air to and from these. The tubes 18a, 18b are divided into divided air mats 16a, 16b,.
…, 16g, PVC (polyvinyl chloride) is laminated on one side or both sides of a woven cloth of nylon or the like, and two long thin cloths that block the air flow are overlapped and joined by high frequency welding etc. at a predetermined interval. Formed. 34 is a side piece formed integrally with the tubes 18a and 18b. 35 is the tube 18a, 18b and the first air cell 1
5a and a joint for connecting the second air cell 15b, and is formed of a resin such as PVC. This joint 35 functions as air connection means, through which
From the tubes 18a, 18b, the first and second air cells 1
Supply and exhaust are performed to 5a and 15b.

FIGS. 8 to 11 show divided air mats 16a,
16b,..., 16g, storage body 30 and tube 18b
36a indicates the connection state of the divided air mats 16a, 1a.
6b,..., 16g, two button male parts attached to the front surface side end, 36b correspond to the button male part 36a, and the button female part attached to the tube side piece 34,
37a is a male button part attached to the end of the woven fabric 31 on the upper side of the storage body 30, and 37b is a female button part attached to the surface of the tube side piece 34 corresponding to the male button part 37a. The male button portion 37a of the housing 30 is located at the boundary between the divided portions 30a, 30b,..., 30g. These button male and female parts 36a, 36b, 37a, 37
The connection means is constituted by b.

The button male and female parts 36a, 36b, 3
7a, 37b, the divided air mats 16a, 1
, 16g, the tubes 18a, 18b, and the housing 30 are connected to each other. These components are connected to each other, so that their positions are regulated, and they are difficult to move.
That is, even if the sleeping person shifts in weight, the tube 18
The a and 18b do not move, and the storage body 30 is hardly wrinkled. Button male and female parts 36a, 36
b, 37a, 37b are divided air mats 16a, 16b,
..., 16 g, which are attached to the surface of the housing 30 and the tube side piece 34, when these are combined, FIGS.
As shown in FIG. 11, the button male and female portions 36a, 36b, 37
The cloth portion to which the button is attached is bent so that a and 37b are located substantially in the vertical direction. With such a structure, the force in the direction in which the button is released is applied to the button located in the vertical direction in the vertical direction, so that the button is not easily released.

As shown in FIGS. 12 and 13, the joint 35 has a joint male portion 35a and a joint female portion 35b.
The joint male and female portions 35a and 35b are formed with four protrusions 38 and 89 at opposing positions, respectively. Reference numeral 40 denotes a rubber O-ring fitted to the base of the male joint portion 35a. The male joint portion 35a is bonded to the tubes 18a and 18b, and the female joint portion 35b is bonded to the first and second air cells 15a and 15b by high frequency welding or the like while maintaining a sealed state. A vent having a diameter of 14 mm is formed at the center of the joint 35.

To explain the operation, the joint female portion 35b is pushed into the joint male portion 35a and rotated by about 45 degrees so that the projection 39 of the joint female portion 35b goes under the projection 38 of the male joint portion 85a. Both are firmly connected. At this time, the joint female portion 35b
As shown in FIG. 13, the elastic contact is made with the O-ring 40 provided on the male joint portion 35a, and the seal between the two is more complete.

With this configuration, the divided air mat 16
, 16g are tubes 18 respectively.
Since the air mat can be removed from the air mats 18a and 18b, if a part of the air mat is damaged or becomes dirty, only the divided air mats 16a, 16b,... Therefore, if a replacement air mat is prepared, the replacement can be performed easily and quickly, and it is not troublesome to replace the entire air mat, and the usability is improved.

[0031]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS To give an example of the dimensions of the mattress device having the above configuration, the size of the bag body 1 is 98 cm in width (lateral direction).
The thickness of 19.5 cm, the height of 22 cm, the longitudinal portion of the frame member 3 is 18 cm long, 6 cm wide and 194 cm long, and the left and right portion of the frame member 3 is 18 cm long, 85 cm wide and 5 cm long in the longitudinal direction. It is. The cushion member 4 accommodated in the frame member 3 has a width of 85 cm, a length of 184 cm, a thickness of 12 cm, and the size of the air mat 5 is 85 cm in width, 184 cm in length, and 10 cm in thickness in an air supply state. The diameter (W) of the first and second air cells 15a and 15b is 7 cm, the thickness (Wa) of the inclined bent portion is 6 cm, and the diameter of the tubes 18a and 18b is 3 cm, and the total is the thickness of the air mat. The relaxation sheet 6 has a width of 96 cm, a length of 194 cm, and a thickness of 2 cm. Tubes 18a, 1
8b is 5 cm in width and 3 cm in width of the tube side piece 34 in a flat state with the air removed.

First and second air cells 15a, 15 at the time of air supply
The air pressure in b is used in the range of 200 to 800 mmAq, and the air pressure at the time of exhaustion is about 1/2 of the air pressure at the time of air supply. At the time of air supply, left and right air cell portions 21, 23, 22, 24 and inclined bent portion 2 of first and second air cells 15a, 15b.
5 and 26 have a circular cross section as shown in FIGS. 5 and 6, the inclined bent portions 25 and 26 are lowered by the height difference h, and the recess 29 is formed. In the case of the above example, the depth of the concave portion 29 is about 5 mm for each of the upper and lower sides.

In the air mat having the above-mentioned structure, a sleeper lies on the air mat, and the first and second air cells 15a and 15b are placed thereon.
Are alternately supplied and exhausted, and when the right air cell section 21 is in the exhaust state, the left air cell section 24 located on the left side thereof is in the air supply state. That is, the part in the exhausted state is supported by the air supply air cell part on the right side, the vertical movement of the sleeping person's body is reduced, and furthermore, the concave part 29 in the center part of the mat supports a wide area along the shape of the back. This confirmed that the sense of stability increased. Further, since the width of the inclined bent portions 25 and 26 is smaller than that of the left and right air cell portions 21, 23, 22 and 24, the tension in these portions is small. As a result, it was confirmed that the contact area with the back increased from such a structure.

[0034]

According to the present invention (Claim 1), the back of a sleeping person who is lying on his back is supported by a large area as if wrapped in the recess at the center of the air mat and the left and right air cells. A sense of security is obtained. Further, when the sleeping person is heavy or when a large external force is applied locally, such as jumping on a mattress, there is a possibility that a bottom-bottom phenomenon may occur particularly in the concave portion. The cushion member is located under the cushion member, which deforms with cushioning properties and absorbs impact, so that discomfort such as hitting a hard floor surface does not occur. Further, by alternately supplying and exhausting air to and from the first air cell and the second air cell, the compression part of the body changes over time, and the body pressure can be dispersed in a well-balanced manner, and a massage effect can be obtained. Further, when one of the first air cell and the second air cell is in an inflated state, the other is in a contracted state, and a step is generated between the two, which appears as irregularities on the surface of the air mat. Although this unevenness may be uncomfortable for a healthy person, in the present invention, a softening unevenness is obtained because a relief sheet is laid on the air mat to make the unevenness gentle. From these, comfortable sleep is obtained, and it is particularly suitable for use by healthy persons.

According to the present invention (claim 2), since the support of the body is asymmetrical, the sleeping person is less likely to experience the air cell in the exhausted state, the recognition of the exhaust air cell is diminished, and the supply of the air mat is reduced. Anxiety caused by the exhaust operation can be reduced. In addition, since the central portion of the air cell is inclined and bent and is gently deformed, there is no gap between the air cell and the air cell when it comes into contact with the spine. Therefore, the body pressure does not become zero in this portion, and a well-balanced body pressure distribution can be obtained from this configuration.

According to the present invention (claim 3), the position of each air cell of the divided air mat stored in the storage body in the horizontal direction and the vertical direction is hardly moved. At the same time, since the divided air mats are also connected by the storage body, no movement between the divided air mats occurs. Therefore, at bedtime, the discomfort that the air cell moves with the movement of the body does not occur, and the generation of the unpleasant rubbing sound due to the friction between the divided air mats is suppressed.

According to the present invention (claim 4), since the divided air mat and the housing are detachably connected to the tube side piece integrally formed with the air supply / exhaust tube, these three members are connected to each other and moved. Is regulated. Therefore, another base cloth or the like for fixing the air mat, which has been conventionally required, is not required, and the connection can be made easily and compactly.

According to the present invention (claim 5), the supply / exhaust tube and the tube side piece are joined by laminating two thermoplastic resin sheets, so that they are easily crushed and flat when subjected to pressure. Becomes Therefore, even if a part of the hand body presses this, there is almost no presence, and the user does not feel the hard discomfort unlike a conventional pipe.

[Brief description of the drawings]

FIG. 1 is an exploded perspective view of a mattress device according to an embodiment of the present invention.

FIG. 2 is a sectional view taken along line AA of FIG.

FIG. 3 is a partially cutaway perspective view showing a cushion member.

FIG. 4 is a plan view showing an air mat.

FIG. 5 is a sectional view of an inclined bent portion of the air cell.

FIG. 6 is a cross-sectional view of left and right air cells.

FIG. 7 is a sectional view taken along a center line of one air cell.

FIG. 8 is a partially exploded plan view of the air mat.

FIG. 9 is a side view as viewed from a direction B in FIG. 8;

FIG. 10 is a sectional view taken along line CC of FIG. 8;

FIG. 11 is a sectional view taken along line DD of FIG. 8;

FIG. 12 is a perspective view showing a joint.

FIG. 13 is a sectional view showing a state where a joint is connected.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Bag body 2a, 2b Fastener 3 Frame member 4 Cushion member 5 Air mat 6 Relaxation sheet 7 Surface member 8 Coil spring 9 Steel wire 15a, 15b First, second air cell 16a, 16b, ..., 16g Split air mat 18a, 18b Tube Reference Signs List 20 Air pump 21, 22 Right air cell part 23, 24 Left air cell part 25, 26 Inclined bent part 29 Concave part 30 Storage body 31, 32 Woven cloth 34 Side piece 35 Joint 36a, 37a Male button part 36b, 37b Female button part

 ──────────────────────────────────────────────────続 き Continuing from the front page (72) Inventor Mikihiko Morimoto 1-8 Yokokawa Shinmachi, Nishi-ku, Hiroshima, Hiroshima Pref. (72) Inventor Maki Miki 1-8 Yokokawa Shinmachi, Nishi-ku, Hiroshima, Hiroshima Pref. Of which F-term (reference) 3B096 AB04 AD03 AD07

Claims (5)

[Claims] 1. A bag made of a flexible member having an open upper surface and a zipper attached to an upper end edge, a frame member arranged around the inside of the bag, and the frame member in the bag body A cushion member made of a spring or a foam material housed inside, an air mat overlaid on the cushion member, a relaxation sheet laid on the air mat, and laid on the relaxation sheet; A peripheral member provided with a flexible member having a fastener attached to the fastener of the bag body, wherein the air mat has a plurality of elongated flexible air cells arranged in the left-right direction alternately arranged. And an air mat for alternately supplying and exhausting air to and from the first and second air cells, wherein the first and second air cells are respectively left and right air cells. A mattress device comprising a concave portion located between the ascel portion and the left and right air cell portions and at the center of the air mat. 2. The mattress according to claim 1, wherein the concave portion at the center of the first air cell and the second air cell is inclined and bent in the front-rear direction, and the left and right air cells are shifted in the front-rear direction. apparatus. 3. The air mat is composed of a plurality of divided air mats, and the divided air mats are housed in a storage body for each of the divided air mats. The mattress device according to claim 1 or 2, wherein the mattress device is detachably connected to a supply / exhaust tube arranged in each of the mattresses. 4. The air supply / exhaust tube has a tube side piece, and a connection means for detachably connecting the divided air mat and the housing is attached to the tube side piece. The mattress device according to any one of claims 1 to 3, wherein 5. The mattress device according to claim 4, wherein the air supply / exhaust tube and the tube side piece are formed by overlapping and joining two thermoplastic resin sheets.