air bed

Abstract

To provide an air bed which does not require a large storage space, can be made usable with a simple operation, and can provide high-quality sleep. [Solution] The device comprises an internal cell mat in which multiple rod-shaped cells made of soft film are connected horizontally with welded bars sandwiched between them, and an outer bag made of a breathable, low-elasticity material into which the internal cell mat is placed. The rod-shaped cells at both ends of the internal cell mat are larger in diameter than the rod-shaped cells between them, and the welded bars have non-welded sections in some parts so that the rod-shaped cells are connected to each other via the non-welded sections. When the internal cell mat is inflated with air and is not under load, the large-diameter rod-shaped cells at both ends come into contact with the use side and anti-use side of the outer bag, and the small-diameter rod-shaped cells between the large-diameter rod-shaped cells are not in contact with at least one of the use side or anti-use side of the outer bag, and the outer bag is in an expanded state in this state.

Description

[Technical Field]

[0001] The present invention relates to an air bed to be used in evacuation shelters in the event of a disaster, and in particular to an air bed that does not require a large storage space, can be made usable with simple operations, and is designed to provide high-quality sleep. [Background technology]

[0002] BACKGROUND ART Conventional air beds are known, such as those described in Patent Documents 1 and 2. First, the air mattress according to the invention described in Patent Document 1 is made by welding the outer peripheries of two sheets together, with multiple partition sheets arranged at intervals inside, and small air chambers formed between the partition sheets.

[0003] Next, the air mattress according to the invention described in Patent Document 2 is used as bedding by housing an air-blowing mat inside. The air-blowing mat has a cross-sectional shape with multiple peaks, and is used in an inflated state by supplying air to the inside with an air pump. In addition, air outlet holes are provided at the apexes of the multiple peaks of the air-blowing mat, allowing air to be blown out from inside the air-blowing mat. This causes the bag-shaped sheet to expand, preventing the bag-shaped sheet from wrinkling. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Japanese Patent Application Publication No. 7-204229 [Patent Document 2] Japanese Patent Application Publication No. 8-280750 Summary of the Invention [Problem to be solved by the invention]

[0005] The above conventional configuration has the following problems. First, in the case of the air mattress according to the invention described in Patent Document 1, the air chambers extended horizontally are connected vertically, which creates a problem of being uncomfortable to sleep on and preventing quality sleep. For example, if there are a large number of air chambers, they may all come into contact with the user's body as protrusions, which can cause discomfort to the user. Furthermore, the height of the air chambers that extend laterally is constant in the horizontal direction, and when the user turns over in bed, they may roll off the air mattress to the left or right. Furthermore, the air mattress according to the invention described in Patent Document 2 also has a structure in which ridges extending horizontally are connected vertically, and has the same problems as the invention described in Patent Document 1.

[0006] The present invention was made based on these points, and its purpose is to provide an air bed that does not require a large storage space, can be made usable with simple operations, and can provide high-quality sleep. [Means for solving the problem]

[0007] In order to solve the above problems, the air bed according to claim 1 of the present invention comprises an internal cell mat in which a plurality of rod-shaped cells made of soft film are connected horizontally with welded bars sandwiched therebetween, and an outer bag made of a breathable, low-elasticity material in which the internal cell mat is placed, the rod-shaped cells at both ends of the internal cell mat have a larger diameter than the rod-shaped cells between them, and the welded bars have non-welded sections in part, so that the rod-shaped cells communicate with each other via the non-welded sections, and when the internal cell mat is inflated with air and is not under load, the large-diameter rod-shaped cells at both ends come into contact with the use surface side and the non-use surface side of the outer bag, and ... of The small diameter rod-shaped cells between the rod-shaped cells are in a non-contact state with at least one of the use surface side or the opposite use surface side of the outer bag, and the outer bag is in an expanded state. The outer bag and the inner cell mat are provided in such a dimensional relationship that It is characterized by the following. Furthermore, the air bed according to claim 2 of the present invention is characterized in that, in the air bed described in claim 1, the internal cell mat is formed by welding both vertical ends of a cylindrical body made of soft film and by welding intermittently along the welding lines. Furthermore, the air bed according to claim 3 of the present invention is characterized in that in the air bed according to claim 1, the outer bag is sewn into a bag shape. Furthermore, the air bed according to claim 4 of the present invention is characterized in that in the air bed according to claim 3, the outer bag is made by sewing non-laminated flat yarn woven fabric. Furthermore, an air bed according to claim 5 of the present invention is characterized in that in the air bed according to claim 1, the outer bag is formed into a bag shape by heat welding. Furthermore, the air bed according to claim 6 of the present invention is the air bed according to claim 1, characterized in that one end of the inner cell mat in the longitudinal direction is fixed to the outer bag. Furthermore, an air bed according to claim 7 of the present invention is the air bed according to claim 1, characterized in that a gripping portion is provided on the outer periphery of the outer bag. Furthermore, an air bed according to claim 8 of the present invention is the air bed according to claim 7, characterized in that a rope is attached to the grip portion. Furthermore, the air bed according to claim 9 of the present invention is the air bed according to claim 8, characterized in that the ropes are used to hold the bed in a folded state and the bed can be used as a sofa. [Effects of the Invention]

[0008] As described above, the air bed according to claim 1 of the present invention comprises an internal cell mat in which a plurality of rod-shaped cells made of soft film are connected horizontally with welded strips sandwiched therebetween, and an outer bag made of a breathable, low-elasticity material in which the internal cell mat is placed, the rod-shaped cells at both ends of the internal cell mat have a larger diameter than the rod-shaped cells between them, the welded strips have non-welded sections in part, and the rod-shaped cells are connected to each other via the non-welded sections, and when the internal cell mat is inflated with air and is not under load, the large-diameter rod-shaped cells at both ends come into contact with the use surface side and the non-use surface side of the outer bag, and ... of The small diameter rod-shaped cells between the rod-shaped cells are in a non-contact state with at least one of the use surface side or the opposite use surface side of the outer bag, and the outer bag is in an expanded state. The outer bag and the inner cell mat are provided with dimensions such that This means that it does not require a large storage space, can be easily made ready for use with simple work, and can provide high-quality sleep. Furthermore, according to the air bed of claim 2 of the present invention, in the air bed of claim 1, the internal cell mat is formed by welding both vertical ends of a cylindrical body made of soft film and intermittently welding along the welding lines, making it easy to manufacture. Furthermore, according to the air bed of claim 3 of the present invention, in the air bed of claim 1, the outer bag is sewn into a bag shape, so that the appropriate elasticity as bedding can be easily obtained with a simpler configuration. Furthermore, according to the air bed of claim 4 of the present invention, in the air bed of claim 3, the outer bag is made by sewing unlaminated flat yarn woven fabric, so that the appropriate elasticity for bedding can be easily obtained with a simpler structure. Furthermore, according to the air bed of claim 5 of the present invention, in the air bed of claim 1, the outer bag is formed into a bag shape by heat welding, so that the appropriate elasticity for bedding can be easily obtained with a simpler configuration. Furthermore, according to the air bed of claim 6 of the present invention, in the air bed of claim 1, one end of the internal cell mat in the longitudinal direction is fixed to the outer bag, thereby preventing the internal cell mat from shifting within the outer bag. Furthermore, according to the air bed of claim 7 of the present invention, in the air bed of claim 1, a gripping portion is provided on the outer periphery of the outer bag, so that a person or the like can be easily moved while placed on the air bed. According to an air bed according to claim 8 of the present invention, in the air bed according to claim 7, a rope is attached to the grip portion, making it easier to grip. Furthermore, according to the air bed of claim 9 of the present invention, the air bed of claim 8 is designed to be used as a sofa by keeping it folded using the rope, so it can be used as both a bed and a sofa with a simple structure. [Brief explanation of the drawings]

[0009] [Figure 1] 1A and 1B are diagrams showing a first embodiment of the present invention, in which FIG. 1A is a perspective view of an air bed viewed from the air inlet side, and FIG. 1B is a perspective view of the air bed viewed from the side opposite the air inlet. [Figure 2] FIG. 1 is a perspective view showing a first embodiment of the present invention, in which a part of the outer bag is not shown and an internal cell mat is exposed. [Figure 3] FIG. 1 is a diagram showing the first embodiment of the present invention, and is a plan view of an inner cell mat in a state where air is not injected. [Figure 4] 4A and 4B are diagrams showing a first embodiment of the present invention, in which FIG. 4A is a schematic cross-sectional view of an air bed in an unloaded state, and FIG. 4B is a schematic cross-sectional view of an air bed in a loaded state. [Figure 5]5(a) is a cross-sectional view of the air bed near the air injection member with the lid of the air injection member closed, FIG. 5(b) is a cross-sectional view of the air bed near the air injection member with the lid of the air injection member open, and FIG. 5(c) is a cross-sectional view of the air bed near the air injection member with air being injected. [Figure 6] FIG. 10 is a diagram showing a second embodiment of the present invention, and is a schematic cross-sectional view of an air bed in an unloaded state. [Figure 7] 7A and 7B are diagrams showing a third embodiment of the present invention, in which FIG. 7A is a perspective view of an air bed viewed from the air inlet side, and FIG. 7B is a perspective view of the air bed viewed from the side opposite the air inlet. [Figure 8] 8(a) and 8(b) are diagrams showing a fourth embodiment of the present invention, in which FIG. 8(a) is a perspective view of an air bed used as a sofa, and FIG. 8(b) is a plan view of the inner cell mat when air is not injected. DETAILED DESCRIPTION OF THE INVENTION

[0010] A first embodiment of the present invention will be described below with reference to FIGS. The air bed 1 according to the first embodiment is composed of an outer bag 3 and an inner cell mat 5 housed inside the outer bag 3, as shown in FIGS. The outer bag 3 is made by sewing a low-stretch material, for example, a single piece of unlaminated flat yarn woven fabric, into a cylindrical shape. The materials assumed for the outer bag 3 are, for example, polypropylene (PP) and polyethylene (PE). Polyethylene (PE) can be heat-sealed, but polypropylene (PP) has weak sealing strength even when heat-sealed, so it is sewn.

[0011] As shown in Figure 3, the internal cell mat 5 is formed by welding both ends of a flexible film cylindrical body 11 in the longitudinal direction (vertical direction) as welding sections 15, 16, and by providing and welding a plurality of welding stripes 17 (four in this embodiment) at a predetermined pitch in the lateral direction (horizontal direction). As a result, a plurality of rod-shaped cells 21 (five in this embodiment) are welded together, extending in the longitudinal direction and connected in the lateral direction (horizontal direction). The welding stripes 17 have a plurality of equally spaced non-welded sections 23, which form a plurality of ventilation holes 25 connecting adjacent rod-shaped cells 21.

[0012] As shown in Figure 4, of the plurality of rod-shaped cells 21, the two at both ends, left and right, are large-diameter rod-shaped cells 21, 21, and three small-diameter rod-shaped cells 21, 21, 21 are provided between these large-diameter rod-shaped cells 21, 21, for a total of five rod-shaped cells 21, 21, 21, 21, 21 connected in series.

[0013] As shown in Figure 4(a), in the unloaded state, the large-diameter rod-shaped cells 21, 21 at the left and right ends of the rod-shaped cells 21 of the inner cell mat 5 are in contact with the use side and the opposite side of the outer bag 3, while the small-diameter rod-shaped cells 21, 21, 21 are not in contact with at least either the use side (upper side in Figure 4) or the opposite side (lower side in Figure 4(a)) of the outer bag 3. The outer bag 3 is in an expanded state in this state.

[0014] As shown in Figure 4(b), when a user A lies on the use surface side of the air bed 1 and is in a load state, the small diameter rod-shaped cells 21, 21, 21 are in contact with both the use surface side (upper side in Figure 4(b)) and the opposite use surface side (lower side in Figure 4(b)) of the outer bag 3. In this state, the outer bag 3 is in an expanded state. The outer bag 3 and the inner cell mat 5 are provided with a dimensional relationship that allows the above-mentioned state to be realized.

[0015] The welded portion 15 is provided at one end in the longitudinal direction of the internal cell mat 5 (the upper end in FIG. 3), and the welded portion 16 is provided at the other end in the longitudinal direction of the internal cell mat 5 (the lower end in FIG. 3). The welded portion 16 is provided a predetermined width inward from the welded portion 15, and the portion outside the welded portion 16 (the lower portion in FIG. 3) is sewn to the outer bag 3. In this way, the internal cell mat 5 is integrated with the outer bag 3.

[0016] As shown in Figure 1, the air bed 1 is equipped with an air injection member 31. As shown in Figure 5, the air injection member 31 is made up of a generally cylindrical bag-piercing member 28, a generally cylindrical valve seat 29 that is inserted into the bag-piercing member 28, and a lid 30 that is inserted from the outside onto the valve seat 29. One end of the valve seat 29 has a bottom 33 with a flow path 32 provided therein.

[0017] As shown in Figure 5(a), the bag-penetrating member 28 is arranged to penetrate the through-hole 26 of the outer bag 3 and the air inlet 27 of the inner cell mat 5. As shown in Figure 5, a check valve 35 is attached to the inner part of the inner cell mat 5 at the valve seat 29. Normally, the flow path 32 is closed by the check valve 35, but as shown in Figure 5(c), when air is sent from the outside of the valve seat 29, the check valve 35 deforms and the flow path 32 is opened.

[0018] A flange 34 is provided on the outer periphery of the bag-piercing member 28. The outer bag 3 and the inner cell mat 5 are inserted between the flange 34 and a fixing ring 36 installed inside the inner cell mat 5 and welded together, thereby fixing the air injection member 31 to the outer bag 3 and the inner cell mat 5.

[0019] The lid 30 and the valve seat 29 are connected by a belt-shaped connecting part 37, and the valve seat 29 is connected to a ring-shaped fixing part 39 by a belt-shaped connecting part 38. The fixing part 39 is attached to the bag-piercing member 28.

[0020] When not in use, the air bed 1 is stored in a folded state with no air filled in the internal cell mat 5. When in use, air is injected into the internal cell mat 5 by inserting, for example, an air gun (not shown) into the air injection member 31, thereby inflating the air bed 1 and making it ready for use.

[0021] As shown in Fig. 1, a gripping portion 41 is provided on the outer periphery of the outer bag 3. The gripping portion 41 has tab portions 43, 43 provided on both sides of the width direction of the outer bag 3. The tab portions 43 are provided with a plurality of rope through-holes 45, and grommets 47 are provided in the rope through-holes 45. A looped rope 49 is installed on the outer periphery of the outer bag 3, passing through the grommets 47. As shown in Fig. 4(b), a user A places on the air bed 1 and grasps the rope 49 to lift and move the air bed 1.

[0022] Next, the operation of the first embodiment will be described. First, when the air bed 1 is not in use, the inner cell mat 5 is not filled with air and is stored in a folded state. When using the air bed 1, air is injected into the inner cell mat 5 via the air injection member 31 using an air gun (not shown), for example, to inflate the air bed 1 and make it ready for use.

[0023] The air bed 1 is in a state shown in Figure 4(a) when not under load. The large diameter rod-shaped cells 21, 21 at the left and right ends of the rod-shaped cells 21 of the inner cell mat 5 are in contact with the use side (upper side in Figure 4(a)) and the non-use side (lower side in Figure 4(a)) of the outer bag 3. The small diameter rod-shaped cells 21, 21, 21 are not in contact with at least one of the use side (upper side in FIG. 4(a)) or the opposite side (lower side in FIG. 4(a)) of the outer bag 3. The outer bag 3 is in an expanded state in this state.

[0024] When user A lies on the use side of the air bed 1 and assumes a loaded state, the air bed 1 assumes the state shown in Figure 4(b). The inner small-diameter rod-shaped cells 21, 21, 21 of the rod-shaped cells 21 of the internal cell mat 5 also come into contact with both the use side (upper side in Figure 4(b)) and the opposite side (lower side in Figure 4(b)) of the outer bag 3. In this state, the outer bag 3 assumes an expanded state. This change in the state of the internal cell mat 5 of the air bed 1 between the unloaded state and the loaded state allows user A to enjoy a comfortable feel when using the air bed.

[0025] To explain this point in more detail, when user A lies down on the air bed 1, his / her weight is first placed on the small-diameter rod-shaped cells 21, 21, 21 directly below him / her. The pressure inside the small-diameter rod-shaped cells 21, 21, 21 under his / her weight rises, and this pressure increase is transmitted to the large-diameter rod-shaped cells 21, 21 at both ends. The large-diameter rod-shaped cells 21, 21 at both ends tend to expand due to the increase in internal pressure, but because they are covered on the outside by the outer bag 3, this ultimately results in an increase in the tension of the outer bag 3. This increase in tension functions as a force to support user A's weight. In other words, user A's weight is not supported solely by the internal cell mat 5, but also by the increased tension of the outer bag 3. Since the outer bag 3 is made of a breathable material, it does not itself become an air bag.

[0026] Next, we will explain how to use the air bed 1 as a stretcher. In this case, as shown in Figure 4(b), a user A (person to be carried) is laid on the inflated air bed 1, and as shown in Figure 1, several people are placed around the air bed 1 and hold the ropes 49. In this state, the air bed 1 is lifted and carried to a predetermined location.

[0027] Next, the effects of the first embodiment will be described. First, it does not require a large storage space, can be easily made ready for use, and can provide high-quality sleep. That is, when not in use, the inner cell mat 5 is not filled with air, and can be stored in a small storage space by folding the entire mat. When in use, the inner cell mat 5 can be made usable simply by injecting air into it through the air injection member 13 using an air pump. Furthermore, when in use, the weight of the user A is not supported only by the internal cell mat 5 but also by the increased tension of the outer bag 3, so the user A does not feel the rod-shaped cells 21 of the internal cell mat 5 protruding. Furthermore, even if the load bearing location changes due to turning over in bed, etc., there is no sudden change because the structure does not support the load locally, and the discomfort and fluffy feeling caused by air movement is effectively reduced, providing a stable and comfortable sleep. Furthermore, the rod-shaped cells 21 at both the left and right ends of the rod-shaped cells 21 have a large diameter, which can prevent the user A from falling when he or she turns over in bed.

[0028] The inner cell mat 5 is easy to manufacture because it is configured such that the rod-shaped cells 21 are formed by welding a soft film. Furthermore, since the outer bag 3 is made by sewing a non-laminated flat yarn woven fabric, the air bed 1 can be easily obtained with a simpler structure and with elasticity suitable for use as bedding.

[0029] Furthermore, since the inner cell mat 5 is made of a soft film and the outer bag 3 is made of a non-laminated flat yarn woven fabric, the air bed 1 can be folded with the air removed from the inside via the air injection member 31, thereby reducing the space required for storage.

[0030] In addition, the end of the internal cell mat 5 on the welding portion 16 side is sewn to the outer bag 3, and the internal cell mat 5 is integrated with the outer bag 3, so that the internal cell mat 5 can be prevented from shifting position within the outer bag 3.

[0031] Furthermore, the air bed 1 is provided with a grip portion 41, so that the air bed 1 can be easily moved with the user A placed on it, as shown in FIG. 4(b). In addition, the gripping portion 41 has a looped rope 49, which has the advantage of making it easy to grip the air bed 1. Furthermore, the lid 30 of the air injection member 31 and the valve seat 29 are connected by a belt-shaped connecting part 36, and the valve seat 29 is connected to a ring-shaped fixing part 38 by a belt-shaped connecting part 37, and the fixing part 38 is attached to the bag-piercing member 28, so that the lid 30 can be prevented from being lost.

[0032] We conducted an experiment to confirm that it can provide high-quality sleep. First, the pressure of user A's body was measured while he lay or sat on the air bed using this embodiment. The results showed that there was no concentration of pressure on a specific area. For example, the occurrence of bedsores when a person requiring care lies down on the air bed is reduced.

[0033] In another experiment, user A lay on the air bed 1 according to this embodiment for a predetermined period of time, and the waveform changes of the pectoralis major, external oblique, erector spinae (right side), erector spinae (left side), rectus femoris, and gastrocnemius were measured. The user turned over several times within the predetermined period. As a result, there were no significant changes in the waveforms of the pectoralis major, external oblique, erector spinae (right side), erector spinae (left side), rectus femoris, and gastrocnemius, even when the user turned over. This means that the user was able to turn over without straining themselves. All experiments were carried out at the Shizuoka Prefectural Industrial Technology Center.

[0034] Next, a second embodiment of the present invention will be described with reference to FIG. The air bed 101 according to the second embodiment has a configuration similar to that of the air bed 1 according to the first embodiment, but uses a differently configured internal cell mat 103. The internal cell mat 103 has a configuration similar to that of the internal cell mat 5 of the air bed 1 according to the first embodiment, and has two small diameter rod-shaped cells 21, for a total of four rod-shaped cells 21.

[0035] The other configurations are the same as those of the first embodiment, and the same parts in the drawings are denoted by the same reference numerals and their explanations are omitted.

[0036] In the second embodiment, the same functions and effects as those of the first embodiment can be achieved. Furthermore, in the case of the first embodiment, there is a concern that when user A lies down in the widthwise center portion, the rod-shaped cells 21 in the widthwise center portion may come into contact with the spine, causing discomfort. However, in the case of this second embodiment, the widthwise center portion is located between the rod-shaped cells 21, so such discomfort can be eliminated.

[0037] Next, a third embodiment of the present invention will be described with reference to FIG. The air bed 201 according to the third embodiment has a configuration substantially similar to that of the air bed 1 according to the first embodiment and the air bed 101 according to the second embodiment, but uses an exterior bag 203 with a different configuration. The outer bag 203 is formed by sewing the outer peripheries of two flat yarn woven fabrics 205 and 207 together into a bag shape.

[0038] A gripping portion 211 is provided on the outer periphery of the outer bag 3. A plurality of tabs 213 are provided on the gripping portion 211. The plurality of tabs 213 are attached to the outer periphery of the outer bag 3 by co-sewing their base ends together with the flat yarn woven fabrics 205, 207. A rope through-hole 215 is provided in the tab 213, and an eyelet 217 is provided in the rope through-hole 215. A rope 49 is attached to the outer periphery of the outer bag 203, passing through the eyelet 217. The other configurations are the same as those of the first and second embodiments, and the same parts in the drawings are denoted by the same reference numerals and the description thereof will be omitted.

[0039] In the case of the third embodiment, the same actions and effects as those of the first and second embodiments can be achieved.

[0040] Next, a fourth embodiment of the present invention will be described with reference to FIG. The air bed 301 according to the fourth embodiment has a configuration similar to that of the air bed 1 according to the first embodiment, but as shown in FIG. 8(a), it is bent at the center of its length, and the rope 303 is passed through the eyelets 47 on the end side to maintain the bent state, so that it can be used like a sofa.

[0041] The air bed 301 uses an internal cell mat 305. The internal cell mat 305 has a configuration similar to that of the internal cell mat 5 of the air bed 1 according to the first embodiment, but as shown in Figure 8(b), it is configured to be easily folded by providing a plurality of welded portions 307 extending in the width direction (up and down direction in Figure 8(b)) at the center in the length direction (left and right direction in Figure 8(b)).

[0042] In the case of this fourth embodiment, in addition to providing the same functions and effects as the first to third embodiments, it can also be used as a sofa.

[0043] The present invention is not limited to the first to fourth embodiments. First, in the first to fourth embodiments, an example was given of manufacturing an internal cell mat using a cylindrical body made of soft film, but it is also possible to manufacture an internal cell mat by welding two soft films together. Furthermore, in the first to fourth embodiments, the cases where the number of rod-shaped cells is 5 and 4 have been described as examples, but the number of rod-shaped cells is not limited to these, and various cases are possible for the number of rod-shaped cells. It is also conceivable that the air beds according to the first to third embodiments can be folded like the air bed according to the fourth embodiment and used as a sofa. Furthermore, in the first to fourth embodiments, the air beds used in evacuation shelters in the event of a disaster have been used as examples, but the present invention is not limited to this, and it is also possible to consider the application of the air beds to be used outdoors, such as for camping, or as air beds for normal use. Furthermore, in the first to fourth embodiments, the outer bag is sewn into a bag shape, but this is not limited to this, and it is also possible to form the bag shape by heat welding, for example. Additionally, it is also possible to integrate the outer bag and the inner cell mat by heat welding. Furthermore, in the first to fourth embodiments, an example was given in which a rope is attached around the outer casing, but this is not limited to this, and a configuration in which a rope is not attached is also possible. The other things shown in the drawings are merely examples. [Industrial Applicability]

[0044] The present invention relates to an air bed to be used in evacuation shelters, for example, when a disaster occurs, and in particular to an air bed that does not require a large storage space, can be made usable with simple operations, and is designed to provide high-quality sleep, making it suitable as bedding to be used in emergencies such as disasters. [Explanation of symbols]

[0045] 1. Air bed 3 Outer bag 5 Internal cell mat 17 Welding Reinforcement 21 Rod-shaped cell 25 ventilation holes 41 Gripping part 101 Air Bed 103 Internal cell mat 201 Air Bed 203 Outer bag 205 Flat yarn woven fabric 207 Flat yarn woven fabric 211 Gripping part 301 Air Bed 305 Internal Cell Mat

Claims

1. An internal cell mat in which multiple rod-shaped cells made of soft film are connected horizontally with welding strips in between, an outer bag made of a breathable, low-stretch material in which the internal cell mat is placed; Equipped with The rod-shaped cells at both ends of the internal cell mat have a larger diameter than the rod-shaped cells between them, The welded strips are provided with non-welded portions in part, and the rod-shaped cells are in communication with each other via the non-welded portions, An air bed characterized in that the outer bag and the inner cell mat are arranged in such a dimensional relationship that, when the inner cell mat is inflated with air and under no load, the large diameter rod-shaped cells at both ends are in contact with the use side and the opposite side of the outer bag, and the small diameter rod-shaped cells between the large diameter rod-shaped cells are not in contact with at least one of the use side or the opposite side of the outer bag, and the outer bag is in an expanded state.

2. The air bed according to claim 1, The air bed is characterized in that the internal cell mat is formed by welding both longitudinal ends of a cylindrical body made of soft film and by intermittently welding along the welding lines.

3. The air bed according to claim 1, The air bed is characterized in that the outer bag is formed into a bag shape by sewing.

4. The air bed according to claim 3, The air bed is characterized in that the outer bag is made by sewing an unlaminated flat yarn woven fabric.

5. The air bed according to claim 1, The air bed is characterized in that the outer bag is formed into a bag shape by heat welding.

6. The air bed according to claim 1, An air bed characterized in that one end in the longitudinal direction of the inner cell mat is fixed to the outer bag.

7. The air bed according to claim 1, An air bed characterized in that a gripping portion is provided on the outer periphery of the outer bag.

8. The air bed according to claim 7, An air bed characterized in that a rope is attached to the gripping portion.

9. The air bed according to claim 8, The air bed is characterized in that it can be used as a sofa by being held in a folded state by the rope.

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