JP5339873B2 - Air mat - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an air mat, holding a user on the mat in a suitable posture to give stimulus such as pressing according to information on the user, urging the user to get to sleep, and tempting the user into a comfortable sleeping to improve the quality of sleep. <P>SOLUTION: An air cell expanded and contracted by supplying and discharging the air is formed in two upper and lower layers, a user's body is supported with internal pressure according to his figure or the like by each lower layer air cell, and the user is pressed with variation under the air supply and discharge control by the respective upper layer air cells 11, 12, so that the lower layer air cells support the user's body with a good balance while being deformed, thereby eliminating partial sinking and projecting of the body to secure a suitable posture of lying in bed. Further the skin can be activated, blood circulation can be improved, comfortableness in getting to sleep is enhanced, and getting to sleep is urged by the pressing stimulus from the upper layer air cells 11, 12. Moreover stress due to unsuitable posture in a sleep can be eliminated to improve the quality of a sleep. <P>COPYRIGHT: (C)2010,JPO&amp;INPIT

Description

  The present invention relates to an air mat that assists a user's sleep.

  Air mats that can be inflated and contracted by air supply / exhaust on the mat that supports the body and change the internal pressure to adjust the hardness and the support state of the lying person are used in a wide variety of things. ing. Of these, many have been proposed to prevent bedsores (bed sores) of people who are bedridden, who have to take a long-term sleeping posture, and as an example of such devices, there are many parts that support the body. An air mat device is disclosed in Japanese Patent Application Laid-Open No. 2006-204561, which is limited to inflatable and inflatable protrusions, and prevents contact between the body surface and air by creating a gap between the protrusions. Japanese Laid-Open Patent Publication No. 2005-118130 discloses an air mat device that replaces a place where the user's body is supported every predetermined time and maintains contact between the body surface and air to prevent bed slippage. .

  In addition, the inflatable bed apparatus is designed to improve comfort by changing the internal pressure of the two inflatable bags that support the user in a sleeping position and adjusting the hardness of the bed. However, Japanese Patent No. 2713984 discloses a sleeping device control apparatus that improves comfort in a sleeping state by changing the air cell internal pressure and temperature of an air mat portion that supports the sleeping person based on the information of a sleeping person. -229875, each of which is disclosed.

In recent years, studies have been made to promote the user's sleep by relaxing muscle and nerve tension by stretching before going to bed using a plurality of airbags arranged on a mat (see Non-Patent Document 1 below). ).
JP 2006-204561 A JP-A-2005-118130 Japanese Patent No. 2713984 JP 2004-229875 A Mako Hokudo and four others, “Effective Sleeping Effect of Stretching Before Sleeping Using Air Stretch Mat”, Matsushita Electric Works Technical Report, Matsushita Electric Works, Ltd., August 20, 2003, No. 82, p. 52-58

  The conventional air mat has a configuration shown in each of the above-mentioned patent documents, and is intended to prevent bedsores and improve comfort by adjusting pressure and temperature. These were intended mainly for people who spent a long time in a sleeping position, and aimed to improve comfort during the sleeping position.

  On the other hand, when a normal healthy person goes to bed, the technique of relaxing the tired or tense muscles, thereby providing a mental relaxation effect, and actively shifting to the sleeping state is the non-patent document. However, the conventional air mats disclosed in each of the above-mentioned patent documents have a problem that it is not possible to actively improve the muscle state and shift to a relaxed state. It was.

  On the other hand, although the non-patent document describes the effect of promoting sleep on the side by stretching before sleep, it has a configuration that emphasizes stretching before sleep and considers obtaining a better sleep state during sleep. However, there is a problem that it cannot be said that the quality of sleep can be improved over the entire sleep time.

  The present invention has been made in order to solve the above-mentioned problems, and based on the information relating to the user, the user on the mat can be given a stimulus such as pressing after being held in an appropriate posture. An object of the present invention is to provide an air mat that can improve sleep quality by encouraging sleep and improving the quality of sleep.

An air mat used as a reference of the present invention is an air mat including at least an expansion / contraction region in which a large number of air cells that can be expanded / contracted by supplying / discharging air are arranged. A lower air cell whose internal pressure is adjusted by air supply / exhaust control based on predetermined information, and a plurality of lower air cells arranged above the lower air cell in the expansion / contraction region, and inflated / contracted by air supply / exhaust control, And an upper air cell that changes a pressing state with respect to the user.

As described above, according to the air mat used as a reference of the present invention, the air cells that expand and contract by the supply and discharge of air are formed in two upper and lower layers, and each lower air cell supports the user's body with an internal pressure that matches the body shape and the like. By pressing the user while changing the air supply / exhaust control in each upper air cell, a number of the arranged lower air cells are placed on the upper side of each air cell, and the complex surface of each part of the user's body The shape of the air cell corresponding to the shape of the air cell is almost unaffected by the deformation of the other air cells, and the overall shape of the support body corresponds to the user's body shape. In addition to eliminating the sinking or pushing up of a part of the body, ensuring an appropriate sleeping posture, it is possible to activate the skin, improve blood circulation, etc. by stimulation by a change in the pressing state from the upper air cell In addition to enhancing sleep comfort and promoting sleep, it can relieve stress caused by inappropriate posture during sleep and greatly improve sleep quality, including increased fatigue recovery from sleep. Be made.

Moreover, the air mat used as a reference of the present invention is such that the upper air cell is formed with a smaller shape in plan view than the lower air cell, if necessary.

As described above, according to the air mat used as a reference of the present invention, the upper air cell is formed in a plan view smaller than the lower air cell, and the expansion / contraction range of the upper air cell is narrower than that of the lower air cell. The upper air cell located closer to the user's body closely follows the surface shape of the user's body to disperse the body pressure, and the expansion / contraction of the upper air cell affects the surface shape of the lower air cell that supports the user's body It is hard to give a user, can support the user at the time of sleep more appropriately, and a more preferable sleep state is obtained.

Further, in the air mat used as a reference of the present invention, if necessary, the lower layer air cells are arranged in a predetermined pattern alignment state, and the upper layer air cells do not overlap the upper side of the intermediate portion between the lower layer air cells. Are arranged in an aligned state.

As described above, according to the air mat which is the reference of the present invention, the lower air cell and the upper air cell are arranged in an aligned state, and the upper air cell is arranged so as not to overlap the intermediate portion between the lower air cells, and the expansion / contraction range of the upper air cell Is overlapped with the expansion / contraction range of the lower air cell, and the portion where the expansion / deformation deformation of the upper air cell overlaps with the intermediate portion that does not change during the expansion / contraction deformation of the lower air cell, In addition to not becoming, the upper air cell can move following the deformation of the lower air cell without obstructing the expansion and contraction deformation of each lower air cell, the support shape of the lower air cell can be more appropriately adapted to the user, In addition, the expansion / contraction operation of the upper air cell does not affect the support state according to the user of the lower air cell, and the appropriate posture of the user is maintained during the expansion / contraction of the upper air cell. Yellow, it can be made better the sleep state of the user.

Further, in the air mat used as a reference of the present invention, if necessary, the lower layer air cells are arranged in a matrix shape having a substantially rectangular shape in plan view and having equal intervals in the vertical and horizontal directions, and the upper layer air cells are shown in plan view. It is arranged in a matrix shape that is substantially square and equally spaced in the vertical and horizontal directions, and the linear intermediate portion between cells is arranged in parallel with each other in the upper and lower layers, and the range for one lower air cell It is arranged so as to overlap the upper side in a state in which an integer number of squares is almost contained.

As described above, according to the air mat which is the reference of the present invention, the lower layer air cells and the upper layer air cells are arranged in a matrix, and by arranging the upper layer air cells several times on the lower layer air cell, The upper air cells of the same number of squares in the vertical and horizontal directions are arranged in parallel on the upper side in a balanced manner so that the pressing from the expanding upper air cell to the user can be performed more appropriately and efficiently, and the expansion timing of each upper air cell in parallel If the adjustment is made, the body pressure can be further dispersed and the stimulation can be applied, and the quality of sleep in the user can be further improved. Further, the layout of the air supply / discharge system can be simplified with respect to the lower layer air cells and the upper layer air cells arranged in a matrix, and the structure of the entire mat can be simplified to reduce the cost.

Moreover, the air mat used as a reference of the present invention is such that the lower layer air cell is formed with a dimension in the thickness direction larger than that of the upper layer air cell, if necessary.

As described above, according to the air mat which is the reference of the present invention, the lower layer air cell is formed to have a thickness larger than that of the upper layer air cell, and the air capacity in the lower layer air cell can be sufficiently secured with respect to the upper layer air cell. If the supporting state is maintained, the user's body can be held without landing on the mat ground surface even when the air is discharged from the upper air cell and contracted, and the degree of expansion of the upper air cell can be increased from zero. The upper air cell can be expanded and contracted to the maximum by setting the maximum width up to 100%, the pressure stimulation from the upper air cell can be applied more efficiently, and the maximum effect can be exhibited for improving blood circulation by stimulation. . In addition, the degree to which the expansion / contraction operation of the upper air cell affects the support state according to the user of the lower air cell is reduced, and the user's proper posture can be maintained even during the expansion / contraction of the upper air cell, and the user's sleep state Can be made more preferable.

The air mat according to the present invention is an air mat including at least an expansion / contraction region in which a large number of air cells that can be expanded / contracted by air supply / exhaust are arranged side by side. A plurality of lower air cells whose internal pressure is adjusted by air supply / exhaust control, and a plurality of lower air cells arranged side by side above the lower air cell in the expansion / contraction region, and are inflated / contracted by air supply / exhaust control and pressed against the user An upper layer air cell that changes the state, and by expanding and contracting the inner pressure of the lower layer air cell by simultaneously supplying and discharging air to all the lower layer air cells, a support state that matches the weight of the user is obtained, and this After maintaining the adjusted support state, air supply / exhaust control is performed on the upper air cell while maintaining the internal pressure of the lower air cell .

  As described above, according to the present invention, after the air supply / discharge adjustment to the lower air cell, the air supply / discharge adjustment to the upper layer air cell is performed, and the air cells in the upper and lower layers are not adjusted at the same time. By using only one means and switching it, it is possible to handle both the lower air cell and the upper air cell, and it is not necessary to provide air supply / exhaust means for each upper and lower layer, and expansion and contraction corresponding to the body shape of the user of the lower air cell In addition, since it is not necessary to simultaneously control expansion and contraction that give a stimulus to the user of the upper air cell, it is possible to simplify the control and reduce the cost.

(First embodiment of the present invention)
Hereinafter, an air mat according to a first embodiment of the present invention will be described with reference to FIGS. FIG. 1 is a configuration explanatory view of an air mat according to the present embodiment, FIG. 2 is a longitudinal sectional view of the air mat according to the present embodiment, FIG. 3 is an explanatory view of a supply / discharge system of a lower layer air cell in the air mat according to the present embodiment, and FIG. FIG. 5 is a block diagram of air supply / discharge means in the air mat according to the present embodiment, and FIG. 6 is a diagram of a mat unit of the lower air cell in the air mat according to the present embodiment. 7 is a plan view of the mat unit of the lower air cell in the air mat according to the present embodiment, FIG. 8 is a cross-sectional view taken along the line AA of FIG. 7, and FIG. 9 is the mat unit of the upper air cell in the air mat according to the present embodiment. FIG. 10 is a plan view of the mat unit of the upper air cell in the air mat according to the present embodiment, and FIG. 11 is a cross-sectional view taken along line BB in FIG. That.

  In each of the drawings, an air mat 1 according to the present embodiment is formed of a substantially box-shaped hollow body having flexibility, and a plurality of lower layer air cells 10 arranged in parallel, and a plurality of lower layer air cells 10 are arranged in parallel above the lower layer air cells 10. The upper air cells 11 and 12 of the hollow body smaller than the lower air cell 10 disposed in a state, the substantially rectangular mat base 13 disposed around the lower air cell 10 and the upper air cells 11 and 12, A cover 14 that covers the mat base 13, an air supply / discharge unit 15 that adjusts the amount of air in each air cell by supplying or discharging air to / from the lower air cell 10 and the upper air cells 11, 12 through the supply / discharge pipe, A configuration comprising a control unit 16 that controls the air supply / discharge state in the supply / exhaust unit 15 and an input unit 17 that receives operation inputs for instructing the control unit 16 to execute various operations. There, the is part of the in plan view state lower air cell 10 and the upper air cells 11 and 12 expand and contract area A, and the portions of the mat base 13 surrounding the non-expanded and contracted areas B.

  The lower-layer air cell 10 is formed as a substantially box-shaped hollow body made of a flexible material that can withstand expansion / contraction deformation caused by air injection / discharge, has a substantially rectangular shape in plan view, and a gap portion near the center of the mat base portion 13. The mat base 13 is arranged in a so-called matrix arrangement in which a plurality of mat bases 13 are arranged in parallel at predetermined equal intervals in the vertical and horizontal directions.

  Each lower layer air cell 10 is connected to the lower layer air cells 10 and connected to the supply / exhaust pipe 60 via a communication pipe portion 10a serving as an air passage formed integrally with the air cell. The supply / exhaust pipe 60 is connected to the air supply / exhaust means 15 after the entire air cell is integrated into one supply / exhaust system. Thus, the lower layer air cells 10 are uniformly supplied and exhausted with air, and each has the same predetermined value. It is a mechanism that expands and contracts at the timing.

  The lower layer air cell 10 is integrally used as a mat unit α composed of a substantially rectangular sheet in which a total of nine air cells of three vertical and three horizontal are formed so as to have a desired size (width). The mat unit α is appropriately connected and combined to form the expansion / contraction region A. In the example of this embodiment, six sets of mat units α are used, and 6 × 9 = 54 are arranged as the lower layer air cells 10.

  In this mat unit α, the lower air cells 10 are communicated with each other by the connecting pipe portion 10a. However, when it is necessary to connect the lower air cells and the connecting pipe portions 10a between two adjacent mat units α, This is dealt with by using a separate connection air pipe 10b.

  The mat units α can be connected to each other via connecting tools provided on each side of the mat unit α. The coupler is composed of a male coupler 10c and a female coupler 10d that are detachably fitted to each other. Two of these couplers are provided on each side adjacent to the other of the mat unit α, and their positions are adjacent in the connected state. It is located in a space formed between the corners of the air cell. Other connecting means can be used as appropriate for connecting the mat units α.

  The upper air cells 11, 12 are made of a flexible material that can withstand expansion / contraction deformation caused by air injection / discharge similar to the lower air cell 10, and are substantially box-shaped hollow bodies having a substantially rectangular shape in plan view smaller than the lower air cell 10. Molded and arranged in a matrix arrangement in which a plurality of cells are arranged in parallel at predetermined equal intervals in the vertical and horizontal directions parallel to the respective side directions of the mat base 13 on the upper side of the lower air cell 10 in the gap portion near the center of the mat base 13. This is a configuration. The size of the upper air cells 11 and 12 in a plan view state is ¼ of the lower air cell, and the upper air cells in a range of two vertical and two horizontal within the range of one lower air cell 10 are approximately within the upper four air cells. In this state, the upper air cells 11 and 12 are arranged so as to overlap the lower air cell 10.

  In this way, the upper-layer air cells 11 and 12 are formed in a plan view shape smaller than the lower-layer air cell 10, and the expansion / contraction range of the upper-layer air cells 11 and 12 is narrower than that of the lower-layer air cell 10. The upper air cells 11 and 12 positioned closer to the body disperse body pressure, and the expansion and contraction of the upper air cells 11 and 12 hardly affect the surface shape of the lower air cell 10 that supports the user's body. In particular, the lower layer air cell 10 and the upper layer air cells 11 and 12 are arranged in a matrix, respectively, and the upper layer air cells 11 and 12 are arranged so as not to overlap the intermediate portion between the lower layer air cells 10. By overlapping the contraction range with the expansion / contraction range of the lower air cell 10, the portion of the upper air cell 11, 12 that expands / contracts overlaps with the middle part that does not change when the lower air cell 10 expands / contracts. In addition to not being in a state of inhibiting pressure dispersion, the upper layer air cells 11 and 12 arranged in a balanced manner in the same number of squares in the vertical and horizontal directions above the lower layer air cell 10 are expanded and contracted for each lower layer air cell 10. It is possible to move following the deformation of the lower air cell 10 without obstructing the above, and the support shape of the lower air cell 10 can be more appropriately handled by the user. . The upper air cells 11 and 12 may be thin as long as they can sufficiently exert the pressing force on the user's body. In this case, expansion and contraction when supporting the body of the lower air cell is possible. The effect of following the deformation appropriately and not affecting the deformation is further enhanced.

  Each of the upper air cells 11 and 12 has an air supply / discharge system divided into a first air cell group 18 and a second air cell group 19, and the air cells 11 and the second air cell group belonging to the first air cell group 18. The air cells 12 belonging to 19 are alternately arranged so as to be adjacent in the vertical and horizontal directions (see FIG. 4). That is, the upper layer air cells are set so that the cells adjacent in the vertical and horizontal directions belong to different cell groups, and the air cells 11 of the first air cell group 18 and the air cells 12 of the second air cell group 19 Supply and discharge are alternately performed at a predetermined timing.

  The upper air cells 11 and 12 are in communication with each other through the upper and lower air cells belonging to the same air cell group through communication pipe portions 11a and 12a that are air passages formed integrally with the air cell. Each air cell 11 belonging to the first air supply / discharge pipe 61 is connected to the first air supply / discharge pipe 61, and each air cell 12 belonging to the second air cell group 19 is connected to the second supply / exhaust pipe 62. The first supply / exhaust pipe 61 and the second supply / exhaust pipe 62 are connected to the air supply / discharge means 15 after the entire air cell is integrated into two supply / discharge systems. In this way, the upper air cells 11 and 12 are supplied and exhausted air for each of the first air cell group 18 and the second air cell group 19, and each of the air cells expands and contracts alternately at a predetermined timing, and the air cells expanding or contracting at the same time have a staggered arrangement. It is a mechanism to make.

  For the upper layer air cells 11 and 12, the mat unit β is formed so that a mat-like unit is a substantially square sheet in which a total of 36 air cells 6 × 6 in width are formed. Are connected and combined as appropriate to constitute the expansion / contraction region A. In the example of the present embodiment, six sets of mat units β having substantially the same size as the mat unit α are used, and 6 × 36 = 216 pieces of upper layer air cells are arranged.

  In the mat unit β, the air cells 11 belonging to the first air cell group 18 and the air cells 12 belonging to the second air cell group 19 are communicated with each other by the connecting pipe portions 11a and 12a, respectively. When it is necessary to connect the connecting pipe portions 11a of the first air cell group 18 and the connecting pipe portions 12a of the second air cell group 19 between them, use a separate connecting air pipe (not shown). It corresponds by. The mat unit β can be connected to each other via a connecting tool (not shown) provided on each side, like the mat unit α. As in the case of the mat unit α, other connecting means may be used for connecting the mat unit β.

  By arranging a plurality of lower layer air cells 10 and upper layer air cells 11 and 12 as mat units α and β, respectively, it is possible to easily form expansion / contraction regions A of various sizes, and to break or air leaks. In the case of handling, since it can be handled by replacing each unit, maintenance is easy, which is extremely advantageous in terms of cost. The gap between the air cells does not widen between the mat units connected. In addition, the number of the lower layer air cells 10 and the upper layer air cells 11 and 12 constituting each mat unit α and β is not limited to the nine or 36, and can be appropriately set according to the use mode. Further, the mat units α and β are not limited to a substantially rectangular shape with the same number of vertical and horizontal air cells, but may be a substantially rectangular shape or other shapes having different numbers of vertical and horizontal air cells.

  The mat units α and β are formed of a molding material made of synthetic resin or the like, and a plurality of upper convex shell portions 41a and 43a having one side opened are arranged in a matrix corresponding to the number of cells. The mat sheets 41 and 43, and the second mat sheet 42 having a plurality of lower convex shell portions 42a and 44a, which are similarly open at one side, arranged in a matrix corresponding to the number of cells. 44, respectively, and the first and second mat sheets are abutted so that the openings of the upper and lower convex shell portions overlap each other, and are joined and integrated by, for example, heat welding. It is a mechanism that can form a large number of air cells together. Further, the connecting pipe portions 10a, 11a, and 12a are also formed by abutting and joining connecting pipe constituent portions integrally formed with the upper and lower mat sheets.

  Each air cell is composed of a pair of upper and lower convex shells, and the upper convex shells 41a and 43a and the lower convex shells 42a and 44a are shaped into a truncated quadrangular pyramid, that is, in front view or side view. It is formed so as to have a substantially trapezoidal shape when viewed, and has excellent lateral strength, formability, and vertical stretchability. In particular, since the lower convex shell portions 42a and 44a are in the shape of a truncated quadrangular pyramid, abnormal deformation is unlikely and pressure increases as the weight is applied, making the waist more firm. It is possible to prevent the so-called flooring phenomenon, in which the body is greatly deformed and the body sinks greatly.

  Further, by forming the truncated quadrangular pyramid shape, a sufficient gap is generated between the convex shell portions 42a and 44a adjacent to each other, and a configuration such as a supply / exhaust pipe or a connection air pipe is formed in this gap. Objects can be easily arranged (see FIG. 8). By using such a space, the entire mat can be made compact as compared with the case where the supply / exhaust pipe is arranged only at the edge of the air mat as in the prior art.

  The mat base 13 surrounds the lower air cell 10 and the upper air cells 11 and 12 forming the expansion / contraction region A, and makes the whole body of a person in a lying posture coincide with the longitudinal direction and the long side direction thereof. A head mat portion 13a which is formed as a substantially rectangular mat-like body having a size to be mounted in an orientation, and which mainly supports the head adjacent to the lower air cell 10 and the upper air cells 11 and 12; A leg mat portion 13b that is disposed on the opposite side of the head mat portion 13a with the air cell 10 and the upper layer air cells 11 and 12 therebetween and mainly supports the leg portion, and the lower layer air cell 10 and the upper layer air cells 11, 12 and the head mat. The peripheral mat portion 13c is disposed so as to surround the portion 13a and the leg mat portion 13b from the side, the upper air cells 11 and 12, and the head and leg mat portions 13a and 13b. An upper sheet 13d, which is configured to include the lower air cells 10 and head and legs mat 13a, and a bottom sheet 13e arranged on the lower side of 13b. A range of the head mat portion 13a, the leg mat portion 13b, and the peripheral mat portion 13c forms a non-expanded region B that surrounds the expanded / contracted region A. The mat base portion 13 including each air cell can be configured to be tiltable by a separately provided actuator (not shown), that is, a reclining operation, with a portion along the upper body of the person as a backrest portion.

  Of the mat base portion 13, the head mat portion 13a and the leg mat portion 13b are made of the same soft material, and generally urethane foam is used. The head mat portion 13a, the leg mat portion 13b, and the like are preferably made of a low resilience material. Further, if a surface having a corrugated uneven surface (so-called profile processing) is used on the upper surface, the body is better supported.

  Further, the leg mat portion 11 is formed to have a larger area than the head mat portion 10, and the expansion / contraction region A is disposed so as to be biased toward the head side with respect to the center of the mat base portion 13. This is because the range in which the lower surface of the body needs to be properly supported is from the buttocks to the neck. Therefore, even if the expansion / contraction region A is set only slightly above the center of the body, there is no problem and the efficiency is high.

  The peripheral mat portion 13c is made of a material that is larger in density and hard to be deformed than the head mat portion 13a and the leg mat portion 13b. Even in the case of the same urethane foam, it is preferable that the density of the head mat portion 13a and the leg mat portion 13b is three times or more that it is difficult to deform. Since the peripheral mat portion 13c is made of a hard material that substantially maintains the shape, the peripheral mat portion 13c can easily move to the expansion / contraction region via the peripheral mat portion 13c when the user is transferred from outside the mat.

  The portion adjacent to the expansion / contraction region A of the peripheral mat portion 13c is used as a piping space for a supply / exhaust pipe whose lower portion or side portion is connected to each air cell, while the upper portion thereof has a predetermined length in the longitudinal direction of the mat base portion 13. A plurality of recesses 13f are provided at intervals. The concave portion 13f has a shape that is continuous in the width direction, and is arranged so as to be aligned substantially in a straight line with the intermediate portion position between cells parallel to the width direction of the mat base 13 between the lower layer air cells 10 and between the upper layer air cells 11 and 12. In addition, the peripheral mat portion 13c tends to be bent in a direction perpendicular to the longitudinal direction, such as reclining in the entire mat base portion 13 while maintaining the property of being difficult to deform such as crushing when a person gets on the peripheral mat portion 13c. For the force, the concave portion becomes a deformation allowance to allow bending deformation of the peripheral mat portion 13c, and together with the intermediate portion between each air cell, assisting bending deformation such as reclining of the entire mat, Become. The depth of the concave portion 13f is about one third of the thickness of the peripheral mat portion 13c, and may be formed not only on the upper surface but also on the upper and lower surfaces.

  The upper sheet body 13d is formed of a rectangular sheet-like body made of a flexible material such as urethane foam, and is fixed integrally with each other mat portion to isolate and protect the upper air cells 11 and 12 from the mat surface. Is. The upper sheet body preferably has a low resilience in order to reliably support the user's body and disperse the body pressure well. In addition, the material characteristics of the upper sheet body, such as the region of the expansion sheet A in the longitudinal direction and the entire width direction of the upper sheet body as a high repulsion part and the remaining area as a low repulsion part. It is also possible to make the structure different from each other, and it is possible to determine from the outside that the place where the expansion / contraction region A and the recess 13f are formed, and low repulsion using a low repulsion material for only a part of the upper sheet body Cost reduction can be achieved by using a part. The range of the high repulsion portion can be configured to change only the color of the other portions, and similarly to the above, it can be determined from the outside that it is a place where the expansion / contraction region A and the recess 13f are formed. Is effective.

  The bottom sheet body 13e is formed of a rectangular sheet-like body made of a flexible material such as a durable urethane foam that is not damaged even when the weight of the user's body or pressure from the inner air cells 10, 11, 12 is applied. These are fixed integrally with each other mat portion, and protect the lower layer air cell 10 from the mat installation surface.

  The cover 14 is made of a strong flexible material that does not break even when the weight of the user's body or the pressure from the air cells 10, 11 and 12 is applied, and is a rectangular sheet-like body having water repellency and moisture permeability. It is formed and covers the mat base 13 to protect the mat base 13.

  The air supply / exhaust means 15 includes a pump unit 50 for supplying air at a predetermined pressure, a lower layer air supply valve 51 for switching communication / non-communication between the lower layer air cell 10 and the pump unit 50, an upper layer air cell 11 and a pump unit. 50, a first air supply valve 52 that switches between communication and non-communication, a second air supply valve 53 that switches communication between the upper air cell 12 and the pump unit 50, and communication between the lower air cell 10 and the external space. A lower exhaust valve 54 that switches non-communication, a first exhaust valve 55 that switches communication / non-communication between the upper air cell 11 and the external space, and a second exhaust valve that switches communication / non-communication between the upper air cell 12 and the external space 56 and pressure sensors 57, 58, 59 for detecting the pressure of the air flow path leading to each air cell.

  The lower layer air supply valve 51 is disposed between the first supply / exhaust pipe 130 connected to the lower layer air cell 10 and the pump unit 50, and is in an air supply (open) state in which the pump unit 50 and the lower layer air cell 10 communicate with each other. It switches the non-air supply (closed) state that is not communicated with. The first air supply valve 52 is disposed between the first supply / exhaust pipe 61 connected to the upper air cell 11 belonging to the first air cell group 18 and the pump unit 50, and connects the pump unit 50 and the upper air cell 11. The air supply state for communication and the non-air supply state for non-communication are switched. Further, the second air supply valve 53 is disposed between the second supply / exhaust pipe 62 connected to the upper air cell 12 belonging to the second air cell group 19 and the pump unit 50, and the pump unit 50 and the upper air cell 12 are connected to each other. The air supply state for communication and the non-air supply state for non-communication are switched.

  The lower layer exhaust valve 54 is connected to the first supply / exhaust pipe 130 and switches between an exhaust state in which the external space and the lower layer air cell 10 are communicated with each other via the first supply / exhaust pipe 130 and a non-exhaust state in which the external space is not communicated. is there. The first exhaust valve 55 is connected to the first supply / exhaust pipe 61 and switches between an exhaust state in which the external space and the upper air cell 11 are communicated with each other and a non-exhaust state in which the upper space air cell 11 is not communicated via the first supply / exhaust pipe 61. It is. Further, the second exhaust valve 56 is connected to the second supply / exhaust pipe 62, and switches between an exhaust state in which the external space and the upper air cell 12 are communicated via the second supply / exhaust pipe 62 and a non-exhaust state in which the external space is not communicated. It is.

  For each air cell 10, 11, and 12, the corresponding air supply valve is in the air supply state, and the pump unit 50 and the air cell are communicated, while the exhaust valve is in the non-exhaust state, thereby supplying air to the air cell. . Further, the exhaust valve is set in an exhaust state, and the air cell and the external space are communicated with each other via the exhaust valve, while the intake valve is set in a non-air supply state so that the air cell can be exhausted. Pressure sensors 57, 58, 59 are arranged at intermediate positions closer to the air cell than the air supply valve and the exhaust valve in each supply / exhaust pipe, respectively, and the control unit 16 determines each air cell 10, 11, 12 from each detected value. It is a mechanism that can acquire internal pressure.

  The upper air cells 11 and 12 are communicated with the first air cell group 18 and the pump unit 50 via the first air supply valve 52 to supply air to the air cell 11, while the second air cell group 19 and the external space Are communicated via the second exhaust valve 56 and exhausted from the air cell 12, and the first air cell group 18 and the external space are communicated via the first exhaust valve 55 and exhausted from the air cell 11, By connecting the second air cell group 19 and the pump unit 50 via the second air supply valve 53 and alternately supplying the air cell 12 at a predetermined timing, the first air cell group 18 ( The expansion of the upper air cell 11) and the expansion of the second air cell group 19 (upper air cell 12) can be performed alternately.

  As each air supply valve and exhaust valve, a solenoid valve is mainly used, but it is not limited to this, and it is used for air pressure control and can reliably open and close the supply / exhaust pipe. Can be selected and used as appropriate.

  The control unit 16 is electrically connected to the pump unit 50 and the pressure sensors 57, 58, 59 of the air supply / exhaust unit 15, and based on pressure detection signals from the pressure sensors 57, 58, 59, the pump unit 50. Control of driving / stopping the operation and opening / closing operation of each air supply valve and exhaust valve to adjust air supply / exhaust to each air cell, adjusting the lower air cell 10 to a predetermined air pressure state, The first air cell group 18 and the second air cell group 19 are alternately expanded and contracted at a predetermined timing. A power source (not shown) is connected to the control unit 16, and the pump unit 50 is also fed with this power source.

  The control unit 16 is a mechanism for executing the air supply / discharge control for the lower layer air cell 10 and the upper layer air cells 11 and 12 at different timings shifted in time. That is, the control unit 16 first performs air supply / exhaust control on the lower air cell 10 based on information such as the body shape of the user input via the input unit 17, and the entire lower layer by the air supply / exhaust unit 15. The internal pressure of the lower layer air cell 10 is adjusted and expanded and contracted by supplying and discharging air simultaneously with the air cell 10 to obtain a support state that matches the body shape and weight of the user, and this adjusted support state is maintained.

  Thereafter, the control unit 16 performs air supply / exhaust control on the upper air cells 11, 12, and the air supply / exhaust means 15 controls the air cells 11 of the first air cell group 18 and the air cells 12 of the second air cell group 19. On the other hand, supply and discharge of air are alternately performed at a predetermined timing so as to expand and contract for each air cell group, and the upper air cells 11 and 12 apply the pressing force associated with the expansion to the upper user as a stimulus. Become. Thus, by not adjusting the upper and lower air cells at the same time, it is possible to cope with the adjustment of both the lower air cell 10 and the upper air cells 11 and 12 with only one air supply / exhaust means 15. The cost can be reduced with the minimum required.

  The input means 17 is installed in the vicinity of the mat body portion on which the user is placed, and is connected to the control unit 16 to receive various operation inputs related to expansion and contraction of each air cell and information related to the user, and to input information. This is transmitted to the control unit 16. The information related to the user input by this input means includes weight, age, body type (types classified into a plurality of types), sex, etc., and such input information mainly includes air supply / discharge of the lower layer air cell 10. Although used for control, it may be used for air supply / discharge control of the upper air cells 11 and 12. The input information may be recorded as data for each user in the control unit 16 and used for subsequent control.

  The information related to the user's body shape is directly input by the input means 17 and is automatically input by information acquisition by a non-contact detection means such as an imaging device or a millimeter wave sensor, or accumulated in the past in the control unit. Information can also be diverted from user data. In addition, operations such as start and stop are directly input by the input unit 17, and the operation instruction content is identified by detecting a gesture such as a user's hand gesture from a captured image of the user imaged by the imaging unit. It is also possible to execute a corresponding operation.

  Next, the pressure adjustment operation of the air mat according to the present embodiment will be described. As a premise, it is assumed that the user inputs information such as weight, body shape, and desired hardness of the mat via the input means 17 in advance, and the control unit 16 can perform control corresponding to the user. To do. First, when the user puts the entire body on the surface of the mat and is positioned correctly in the inflated / deflated region A from the shoulder to the waist of the body and sleeping properly, the input operation for starting the operation on the input means 17 of the user In response to this, the control unit 16 starts the operation of the pump unit 50 of the air supply / discharge means 15. At the same time, the lower layer air supply valve 51 is opened, the lower layer exhaust valve 54 and the other air supply valves and exhaust valves are closed, and air is pressurized and supplied to the lower layer air cell 10 via the first supply / exhaust pipe 61. The lower air cell 10 is expanded.

  The lower air cell 10 presses the upper air cells 11 and 12 together in the direction of lifting the body due to expansion to bring the expansion / contraction region A into a state along the surface shape of the contact portion of the body, and the pressing force of the lower air cell 10 The air cells 11 and 12, the upper sheet body 13 d, and the cover 14 are transmitted to the body contact portion, and the body of the sleeping person is supported by the lower air cell 10. When the pressure sensor 57 detects that each of the lower air cells 10 has reached a predetermined pressure, the lower air supply valve 51 of the air supply / exhaust means 15 is closed by the control unit 16, and the lower exhaust valve 54 is also closed. It maintains, and it will be in the state which stops supply and discharge of the air with respect to the lower layer air cell 10, and maintains the pressure.

  If the pressure detected by the pressure sensor 57 is higher than the target pressure in the control unit 16, the lower exhaust valve 54 is opened, the lower supply valve 51 and other supply valves and exhaust valves are closed, Air is discharged from the lower layer air cell 10 to the external space via the supply / discharge pipe 60, and the internal pressure of the lower layer air cell 10 is reduced to an appropriate value. When the pressure sensor 57 detects that the lower layer air cell 10 has reached an appropriate pressure, the lower layer exhaust valve 54 of the air supply / exhaust means 15 is closed by the control unit 16, and the lower layer supply valve 51 and other valves are The closed state is maintained, the supply and discharge of air to the lower air cell 10 is stopped, and the pressure is maintained.

  When the air supply / discharge means 15 maintains the pressure of the lower layer air cell 10 and the user's posture holding state is determined, the control unit 16 determines the first supply valve 52 and the second exhaust valve 56 in the air supply / discharge means 15. Is opened, the second air supply valve 53 and the first exhaust valve 55 are closed, and the pump unit 50 of the air supply / exhaust means 15 supplies air to the upper air cell 11 and air is discharged from the upper air cell 12. It becomes a state. As a result, the air supply / discharge means 15 expands the upper air cell 11 of the first air cell group 18 (outlined of the air cells shown in FIG. 4) by supplying air, while the upper air cell 12 of the second air cell group 19. The upper layer air cell 11 expands and the other upper layer air cell 12 contracts, and the sleeping user's body receives a stimulus associated with the pressing force from each of the upper layer air cells 11 in a staggered arrangement. It becomes a state.

  When the pressure sensors 58 and 59 detect that the upper air cells 11 and 12 have respectively reached a predetermined upper limit pressure or lower limit pressure, the control unit 16 closes the supply and exhaust valves in the open state of the air supply / discharge means 15. As a state, the injection and discharge of air are temporarily stopped and the pressure is maintained for a predetermined time.

  Further, the control unit 16 switches the first air supply valve 52 and the second exhaust valve 56 in the air supply / exhaust means 15 to the closed state, and the second air supply valve 53 and the first exhaust valve 55 to the open state, respectively. The pump unit 50 of the means 15 supplies air to the upper air cell 12 in the opposite manner, and the air is discharged from the upper air cell 11. As a result, the air supply / discharge means 15 expands the upper air cell 12 of the second air cell group 19 by supplying air, while the upper air cell 11 of the first air cell group 18 contracts by discharging air. Due to the contraction of the other upper air cell 11, the sleeping user's body is in a state of receiving a stimulus accompanying the pressing force from the newly inflated upper air cell 12 in a staggered arrangement. When the pressure sensors 58 and 59 detect that the upper air cells 11 and 12 have reached a predetermined lower limit pressure or upper limit pressure, respectively, the controller 16 controls the air supply and discharge means 15 in the open state and the exhaust valves in the same manner as described above. With the valve closed, the air injection and discharge are temporarily stopped to maintain the pressure.

  Thereafter, the same process is repeated at a predetermined time interval, and air supply / discharge to and from the upper air cells 11 and 12 of the air supply / discharge means 15 is repeatedly performed while switching the supply / discharge target every predetermined time. The air is alternately supplied and filled to the upper air cells 11 belonging to the first air cell group 18 and the upper air cells 12 belonging to the second air cell group 19 in a state where the users who are sleeping on the air mat are supported in an appropriate posture. Each air cell 11 and 12 repeats a change in which when the air is not supplied, the weight of the user is added and contracts, and when the air is supplied, the air cells 11 and 12 expand and press the user. In this way, the upper air cells 11 and 12 intermittently change the position where the user's body is pressed, thereby giving a massage effect such as loosening muscles and improving blood circulation, relaxing the body and spirit and falling asleep Will be promoted.

  Since the lower air cell 10 is thicker than the upper air cells 11 and 12 that alternately press the user in this way, and the air capacity in the air cell is sufficiently secured, the air from the upper air cells 11 and 12 Even when the air is discharged and contracted, the lower air cell 10 can hold the user's body without landing on the mat ground surface, and the upper air cells 11 and 12 can be expanded to a maximum width of 0 to 100%. By setting, the upper air cell can be expanded and contracted to the maximum, the pressure stimulation from the upper air cells 11 and 12 can be efficiently applied, and the maximum effect can be exhibited for improving blood circulation by the stimulation. In addition, the expansion / contraction operation of the upper air cells 11, 12 thinner than the lower air cell 10 has a small degree of influence on the support state according to the user of the lower air cell 10, and the user's expansion / contraction also occurs during the expansion / contraction of the upper air cells 11, 12. Maintain proper posture.

  The air supply / exhaust operation for the upper air cells 11 and 12 that is repeated while alternately switching the supply / exhaust target is considered to be suitable for the user himself or herself to perform a stop operation or to enter the sleep state without the user taking a pause. After a lapse of time, the control unit 16 shifts to a stop state. In this case as well, the internal pressure of the lower air cell 10 is maintained by closing each valve, preventing the body from dropping due to the weight of the user and maintaining an appropriate posture without unnatural bending of the spine, etc. Realize no sleep.

  As described above, the air mat according to the present embodiment has two upper and lower air cells that expand and contract when air is supplied and discharged, and each lower air cell 10 supports the user's body with an internal pressure that matches the body shape, Since the upper layer air cells 11 and 12 press the user with a change due to air supply / exhaust control, a large number of the lower layer air cells 10 arranged are complicated for each part of the user's body placed on the upper side of each air cell. The surface of the air cell is deformed almost unaffected by the deformation of other air cells, and the support shape corresponding to the user's body shape is created as a whole to support the user's body in a balanced manner. Fixing, eliminating the sinking or pushing up of a part of the body, ensuring an appropriate sleeping posture, and revitalizing the skin and improving blood circulation by stimulation by changing the pressing state from the upper air cells 11 and 12 In addition to being able to improve the comfort of sleep and to promote sleep, it is possible to eliminate stress caused by inappropriate posture during sleep, and to increase the degree of recovery from fatigue due to sleep, etc. The quality can be greatly improved.

  In the air mat according to the embodiment, regarding the arrangement of the upper layer air cells 11 and 12 that overlap the upper side of the lower layer air cell 10, there are four upper layer air cells 11 and 12 in total of two vertical and two horizontal layers for each lower air cell 10. However, the present invention is not limited to this, and the upper layer air cell is squared with respect to one lower layer air cell, such as nine vertical 3 × horizontal 3 total, 4 vertical × 4 horizontal 4 total. Thus, the upper layer air cells can be arranged at a high density without affecting the expansion and contraction of the lower layer air cells.

  Further, in the air mat according to the embodiment, a plurality of air cells in the upper and lower layers forming the expansion / contraction region A are collectively formed in the form of mat units α and β, and adjacent sides of the mat unit are connected using a connecting means. By connecting, all the air cells are configured to be integrated and arranged for each upper and lower layers, but in addition, the entire upper layer or lower layer air cells are integrally formed in a continuous sheet shape from the beginning. You can also. However, in this case as well, as in the case where the mat unit is used, a structure in which a plurality of unit-like compartments that are separated from the others by grouping the air supply / discharge system for each predetermined number of air cells is arranged. The size can be easily adjusted in units of these sections, and the expansion / contraction area can be set flexibly. In addition, it can also be set as the structure used by connecting with another air cell as an independent structure one by one, and the expansion / contraction area | region A of a desired magnitude | size can be adjusted and set for every air cell.

(Second embodiment of the present invention)
An air mat according to a second embodiment of the present invention will be described with reference to FIG. FIG. 12 is an exploded sectional view of the air mat according to the present embodiment.
In FIG. 12, the air mat 2 according to the present embodiment is similar to the first embodiment in that the lower air cells 20, 21, the upper air cells 22, 23, the mat base 24, the cover 25, air supply / discharge means, While having a configuration including a control unit and input means, the difference is that the lower layer air cells 20 and 21 are divided into a plurality of air cell groups, and the internal pressure is changed by different air supply / exhaust systems for each air cell group. It has the structure which performs adjustment separately.

  Each of the lower air cells 20 and 21 has an air supply / exhaust system divided into a first air cell group 26 and a second air cell group 27, and the user mats the air cells 20 belonging to the first air cell group 26. The air cells 21 belonging to the second air cell group 27 are respectively disposed in the lower part of the lumbar region in the part corresponding to the lower side of the back while lying on the upper side (see FIG. 12). That is, the lower air cell is set to belong to one of the air cell groups of the lower back portion and the lower waist portion divided in the mat longitudinal direction, and each of the air cells 20 and the second air cell groups of the first air cell group 26 is set. Air supply / discharge of the 27 air cells 21 is performed individually.

  Each lower layer air cell 20, 21 is supplied and exhausted air for each of the first air cell group 26 and the second air cell group 27, expands and contracts independently, and supports each part with internal pressure corresponding to the body part. It is a mechanism to do.

  Specifically, the lower air cells 20 and 21 to which air is supplied under pressure are inflated and pressed together with the upper air cells 22 and 23 in the direction of lifting the user's body, so that the body of the sleeping user is lowered to the lower air cell. 20 and 21, but the pressure applied from the body is different for each part of the body, such as the pressure on the lumbar region is generally greater than the back, so the internal pressure of the lower air cell that supports this is different for each part. In some cases, it is preferable to make them different. In the case of the present embodiment, the lower air cell is divided into a first air cell group 26 in a portion corresponding to the lower side of the back and a second air cell group 27 in a portion corresponding to the lower portion of the waist, and the lower air cell is determined according to the pressure applied to each portion. The internal pressure is adjusted to support each part of the body in an optimal inflated state for each air cell group, so that the posture of the user sleeping can be made more appropriate.

  The division of the supply / discharge unit of the lower air cell is not limited to two groups, but the lower air cell is divided into more than two air cell groups or individual air cells, and each air cell group or individual air cell is divided as described above. The internal pressure may be adjusted by supplying and discharging air to each other. The greater the degree to which the lower layer air cell is divided, that is, the air pressure is supplied and discharged to adjust the internal pressure uniformly. The smaller the number of air cells, the better the followability to the body shape, the more solid the body can be supported and fixed in a three-dimensional shape, and the support pressure from the lower air cell side applied to the body becomes appropriate A posture more suitable for the user's sleep can be obtained.

(Third embodiment of the present invention)
An air mat according to a third embodiment of the present invention will be described with reference to FIG. FIG. 13 is a cross-sectional view of an air mat according to this embodiment.
13, the air mat 3 according to the present embodiment is similar to the first embodiment in that the lower air cell 30, the upper air cells 31, 32, the mat base 33, the cover 34, the air supply / discharge means, and the control unit. The upper air cells 31 and 32 have the same arrangement as the lower air cell 30 as a different point.

  The upper air cells 31 and 32 are made of a flexible material that can withstand expansion and contraction associated with air injection and discharge similar to the lower air cell 30, and are formed as a substantially box-shaped hollow body having a substantially square shape in plan view. As in the first embodiment, a plurality of matrix arrangements are arranged on the upper side of the lower layer air cell 30 in parallel at equal intervals in the vertical and horizontal directions parallel to the side directions of the mat base 33. The size of the upper layer air cells 31 and 32 in a plan view state is the same as that of the lower layer air cell 30, and each upper layer air cell 31 and 32 is configured to overlap with the position directly above the lower layer air cell 30.

  Thus, the upper layer air cells 31 and 32 have the same size as the lower layer air cell 30, and the upper and lower layer air cells are stacked without deviation so that the pressing positions of the body by the upper and lower layer air cells coincide with each other. The difference in the pressing state felt by the user between when the air cell 30 is expanded and contracted and when the upper air cells 31 and 32 are expanded and contracted is small, and the user is less likely to feel discomfort. Further, the upper layer air cells 31 and 32 and the lower layer air cells 30 can be formed in the same arrangement pattern, and the cost can be reduced by sharing the steps in forming the air cell itself or a mat unit in which a plurality of air cells are combined.

  In the air mat according to each of the first to third embodiments, the upper and lower air cells are arranged so as to be in direct contact with each other. However, the present invention is not limited to this and is shown in FIG. As described above, a sheet-like body 80 such as a cloth or a sponge sheet that causes slippage between the upper and lower air cells 70 and 71 may be interposed, so that the upper and lower air cells are not in direct contact with each other and the friction is reduced. Thus, it is possible to prevent the other air cell from becoming a frictional resistor when the one air cell expands or contracts. In this case, two sheet-like bodies 80 having a low surface frictional resistance that cause slipping are interposed (see FIG. 14B), and the two sheet-like bodies hold the storage bags 81 and 82 of each air cell. A structure that also serves as a reference (see FIG. 14C) may be employed. In addition, a cylindrical or bag-like sheet-like body 83 is interposed between the upper and lower air cells 70 and 71, and as a result, the sheet-like body in a two-layered state is disposed to suppress friction between the upper and lower air cells. A configuration (see FIG. 15) can also be adopted. When two sheet-like bodies are interposed between the upper and lower layers, the interposed sheet-like bodies also slide with each other, whereby the friction between the upper and lower air cells and the adverse effects thereof can be prevented more reliably. The sheet-like body interposed between the upper and lower air cells is preferably made of, for example, a rubber knitted fabric that easily stretches and follows the deformation of the cells. Moreover, if this sheet-like body is made of a material that also has low resilience, it is more preferable in terms of dispersion of body pressure.

  Further, in the air mat according to each of the first to third embodiments, the air cell is arranged so that the middle part between the air cells coincides with the upper and lower layers as much as possible, and the expansion and contraction deformation of each air cell in the upper and lower layers is on the other layer side. It is configured so as not to affect, but not limited to this, when the upper layer air cell has a negligible influence on the shape of the lower layer air cell, such as when the upper layer air cell is thin or soft In addition, it is possible to adopt a configuration in which an arrangement pattern in which the upper air cells overlap with the upper side of the intermediate portion between the lower air cells is adopted.

  Further, in the air mat according to each of the first to third embodiments, each of the upper and lower air cells has a rectangular shape in a plan view and is arranged in a matrix shape. Even in this case, it is possible to adopt a configuration in which the arrangement is not a matrix shape, other regular polygonal shapes arranged without gaps as in the square shape, or an air cell shape that is circular in plan view. Moreover, it is also possible to employ a configuration using an arrangement pattern in which different polygons are mixed without gaps, an arrangement pattern in which circles and polygons are mixed, or the like, without making the air cell shapes the same. Further, the air cell shape and arrangement pattern may be made different between the upper and lower layers.

  Further, in the air mat according to each of the first to third embodiments, the expansion / contraction operation of the upper air cell is configured to be stopped in principle so as not to hinder this when the user falls asleep. Not limited to this, the upper air cell is slightly expanded and contracted during the user's sleep to give the user a stimulus that does not interfere with sleep, or the upper layer air cell is expanded and contracted during a preset wake-up time. It is also possible to give a stimulus that promotes a pleasant awakening.

  In the air mat according to each of the first to third embodiments, the expansion / contraction operation of the lower layer air cell is stopped at a stage where the state of supporting the user before falling asleep in an appropriate posture is secured. However, the present invention is not limited to this, and the lower air cell may be expanded and contracted so as to be in an optimal support state for the user each time according to changes in the sleep state during the user's sleep. .

1 is a configuration explanatory diagram of an air mat according to a first embodiment of the present invention. 1 is a longitudinal sectional view of an air mat according to a first embodiment of the present invention. It is supply / discharge system explanatory drawing of the lower layer air cell in the air mat which concerns on the 1st Embodiment of this invention. It is supply / discharge system explanatory drawing of the upper layer air cell in the air mat which concerns on the 1st Embodiment of this invention. It is a block diagram of the air supply / discharge means in the air mat according to the first embodiment of the present invention. It is a perspective view of the mat unit of the lower layer air cell in the air mat concerning a 1st embodiment of the present invention. It is a top view of the mat unit of the lower layer air cell in the air mat concerning a 1st embodiment of the present invention. It is AA sectional drawing of FIG. It is a perspective view of the mat unit of the upper layer air cell in the air mat concerning the 1st embodiment of the present invention. It is a top view of the mat unit of the upper layer air cell in the air mat concerning a 1st embodiment of the present invention. It is BB sectional drawing of FIG. It is an exploded sectional view of an air mat concerning a 2nd embodiment of the present invention. It is sectional drawing of the air mat which concerns on the 3rd Embodiment of this invention. It is sheet | seat-like body arrangement | positioning explanatory drawing between the upper-lower layer air cell in the air mat which concerns on other embodiment of this invention. It is a cylindrical sheet-like body arrangement state explanatory view between the upper and lower layer air cells in the air mat according to another embodiment of the present invention.

Explanation of symbols

1, 2, 3 Air mat 10, 30, 70 Lower air cell 10a Connecting pipe part 10b Connecting air pipe 10c Male connecting tool 10d Female connecting tool 11, 12, 71 Upper air cell 11a, 12a Connecting pipe part 13, 24, 33 Mat base 13a Head mat portion 13b Leg mat portion 13c Perimeter mat portion 13d Upper sheet body 13e Bottom sheet body 13f Concave portions 14, 25, 34 Cover 15 Air supply / discharge means 16 Control portion 17 Input means 18, 26 First air cell group 19, 27 Second Air Cell Group 20, 21 Lower Air Cell 22, 23 Upper Air Cell 31, 32 Upper Air Cell 41, 43 Mat Sheet 41a, 43a Upper Convex Shell 42, 44 Mat Sheet 42a, 44a Lower Convex Shell 50 Pump part 51 Lower supply valve 52 First supply valve 53 Second supply valve 54 Lower supply valve Air valve 55 First exhaust valve 56 Second exhaust valve 57, 58, 59 Pressure sensor 60 Supply / exhaust pipe 61 First supply / exhaust pipe 62 Second supply / exhaust pipe 80, 83 Sheet-like body 81, 82 Storage bag A Expansion / contraction region B Non-expandable region α, β Matt unit

Claims (1)

In an air mat having at least an expansion / contraction region in which a large number of air cells that are freely expandable / contractible by supplying / discharging air are arranged,
Air supply / exhaust control based on weight information input by the user, where the expansion / contraction region is positioned corresponding to the region from the shoulder to the waist of the user's body placed on the air mat, and is arranged side by side in the expansion / contraction region. The lower air cell whose internal pressure is adjusted with,
A plurality of upper air cells that are arranged side by side on the upper side of the lower air cells in the expansion / contraction region, and are inflated / contracted by air supply / exhaust control to change the pressing state against the user,
In the upper air cell, the air supply / exhaust system is divided into the first air cell group and the second air cell group,
The lower air cells are in communication with each other,
By adjusting the internal pressure of the lower air cell to a predetermined pressure according to the weight information input by the user by supplying and discharging air simultaneously with respect to all the lower air cells, it is inflated and contracted to match the weight information input by the user. After obtaining the support state and maintaining this adjusted support state, the internal pressure of the lower air cell is maintained to prevent the body from falling due to the weight of the user and appropriate posture without unnatural bending of the spine etc. The air supply / discharge control is alternately executed at a predetermined timing with respect to the first air cell group and the second air cell group of the upper air cell , and the pressing force accompanying the expansion is given as a stimulus to the upper air cell. An air mat characterized by

Images