WO2019017137A1 - Coussin de support de la pression du corps et procédé de fabrication associé - Google Patents

Coussin de support de la pression du corps et procédé de fabrication associé Download PDF

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Publication number
WO2019017137A1
WO2019017137A1 PCT/JP2018/023504 JP2018023504W WO2019017137A1 WO 2019017137 A1 WO2019017137 A1 WO 2019017137A1 JP 2018023504 W JP2018023504 W JP 2018023504W WO 2019017137 A1 WO2019017137 A1 WO 2019017137A1
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WO
WIPO (PCT)
Prior art keywords
cell
chamber
auxiliary
sheet
expansion
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Application number
PCT/JP2018/023504
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English (en)
Japanese (ja)
Inventor
晶嗣 御崎
拓也 古田
Original Assignee
住友理工株式会社
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Filing date
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Application filed by 住友理工株式会社 filed Critical 住友理工株式会社
Publication of WO2019017137A1 publication Critical patent/WO2019017137A1/fr

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Classifications

    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47C—CHAIRS; SOFAS; BEDS
    • A47C27/00—Spring, stuffed or fluid mattresses or cushions specially adapted for chairs, beds or sofas
    • A47C27/08—Fluid mattresses or cushions
    • A47C27/10—Fluid mattresses or cushions with two or more independently-fillable chambers

Definitions

  • the present invention relates to a pressure support cushion capable of effectively dispersing the user's body pressure over a wide range, and a method of manufacturing the same.
  • a body pressure support cushion for reducing pressure acting on a user's body when the user lays or sits on a support surface to improve sleeping comfort and sitting comfort, and a mattress Application to, etc. is being considered.
  • This body pressure support cushion is provided with a support cell provided with a fluid chamber inside as disclosed in, for example, JP-A-2017-51549 (patent document 1), etc., and is disposed on the support surface By the expansion and contraction of the support cell according to the load acting on the support cell, a large contact area between the user and the body pressure support cushion is secured, and the pressure acting on the user is dispersed.
  • Patent Document 1 proposes a structure capable of causing expansion and contraction deformation of the support cell with a larger stroke and more quickly by providing the auxiliary cell including the expansion and contraction auxiliary chamber communicated with the fluid chamber of the support cell.
  • This auxiliary cell has a structure in which the intermediate film is disposed inside the outer film, and on both sides of the intermediate film, the expansion / contraction auxiliary chamber communicated with the fluid chamber of the support cell and the function of accommodating the elastic means A room is formed.
  • the fluid moves from the fluid chamber of the compressed support cell to the expansion / contraction auxiliary chamber of the auxiliary cell, and the compressive deformation of the support cell is permitted quickly and with a large stroke.
  • the load acting on the support cell is reduced or released, the intermediate film of the auxiliary cell is displaced toward the expansion / contraction auxiliary chamber by the elasticity of the elastic means, whereby the fluid chamber of the auxiliary cell from the expansion / contraction auxiliary chamber The fluid is quickly transferred to the support cell so that the amount of compressive deformation of the support cell can be quickly reduced.
  • the fluid chamber of the support cell and the expansion / contraction auxiliary chamber of the auxiliary cell which are in communication with each other, form a sealed space with respect to the atmosphere.
  • the characteristic may be preset in a mode that can not be arbitrarily changed based on the spring characteristic of the elastic means of the auxiliary cell or the internal pressure of the expansion / contraction auxiliary chamber of the auxiliary cell.
  • the cushion characteristics of the support cell may be required to be able to adjust during or after use.
  • the present invention has been made against the background described above, and the problem to be solved is that an excellent body pressure dispersion effect can be realized by a simple structure, and the cushion characteristics of the support cell can be easily adjusted. It is an object of the present invention to provide a body pressure support cushion of a novel structure which is made possible.
  • the present invention also includes a support cell including a fluid chamber inside, an auxiliary cell including a working chamber for accommodating an expansion / contraction auxiliary chamber and an elastic body on both sides of a working film disposed inside, a fluid chamber and a scaling auxiliary chamber. It is another object of the present invention to provide a method of manufacturing a body pressure support cushion integrally formed with a communicating passage communicating with.
  • the first aspect of the present invention is a body pressure support cushion, which has a fluid chamber inside and is capable of expansion and contraction, and an expansion / contraction auxiliary chamber communicated with the fluid chamber of the support cell.
  • An auxiliary cell provided therein, a working chamber formed on the opposite side of the flexible cell with respect to the expansion / contraction chamber in the auxiliary cell, and an elasticity accommodated in the working chamber of the auxiliary cell.
  • a body an open air hole for opening the working chamber of the auxiliary cell to the atmosphere, a pressure control port for enabling supply and discharge of fluid to the expansion / contraction auxiliary chamber of the auxiliary cell, and the pressure control port And a plug member for switching to the shutoff state.
  • the fluid such as air can be supplied or discharged through the pressure control port to the expansion / contraction auxiliary chamber of the auxiliary cell.
  • the deformation characteristics of the working film in the auxiliary cell can be easily changed by, for example, adjusting the amount of compressive deformation of the elastic body in the working chamber by adjusting the internal pressure of
  • the support cell is compressed by, for example, a person mounting on the support cell
  • the fluid flow characteristics between the fluid chamber of the support cell and the expansion / contraction auxiliary chamber of the auxiliary cell conform to the deformation characteristics of the working film. Because the cushioning characteristics such as the degree of deformation to the input of the support cell are adjusted, a better sleeping comfort is realized.
  • the auxiliary cell is configured to have the expansion / contraction auxiliary chamber and the operation chamber across the working film, it is possible to supply or discharge the fluid to the expansion / contraction auxiliary chamber communicated with the fluid chamber of the support cell in the auxiliary cell.
  • a change in the proportion of the volume of the expansion / contraction auxiliary chamber and the action chamber occurs. Therefore, it is possible to suppress the shape change of the support cell while realizing the change of the deformation characteristic of the support cell by adjusting the pre-compression amount of the elastic body in the working chamber.
  • the support cell since the amount of fluid stored in the fluid chamber of the support cell and the expansion / contraction auxiliary chamber of the auxiliary cell can be appropriately changed by the pressure control port, for example, the support cell according to the weight and preference of the user The hardness of the support cell can be properly adjusted against expansion and contraction of the fluid in the fluid chamber due to changes in the use environment such as air pressure and temperature.
  • a second aspect of the present invention is the body pressure support cushion described in the first aspect, wherein the pressure adjustment port is provided in the auxiliary cell.
  • the pressure regulation port is directly communicated with the expansion / contraction auxiliary chamber of the auxiliary cell without passing through the fluid chamber of the support cell, whereby the change due to the supply or discharge of the fluid through the pressure regulation port is It is efficiently produced in the auxiliary cell. Therefore, the supply or discharge of fluid to the expansion / contraction auxiliary chamber through the pressure control port effectively realizes the adjustment of the cushioning characteristics of the support cell by changing the spring of the auxiliary cell, and the support cell by the supply or discharge of fluid. Deformation and the like are reduced.
  • the auxiliary cell is disposed between the overlapping surfaces of the first sheet and the second sheet which are mutually superimposed.
  • the working membrane is disposed, and the working chamber is formed between the first sheet and the working membrane, and the expansion / contraction assistance is provided between the second sheet and the working membrane.
  • the chamber is formed, and a fixing piece which is overlapped and fixed to the second sheet and the working film is provided so as to extend outward, and the fixing piece of the second sheet and
  • a pressure control passage communicating with the expansion / contraction auxiliary chamber is formed between the overlapping surfaces of the working film and the fixing piece, and the pressure adjusting port is the fixing piece or the function of the second sheet.
  • the pressure adjustment port is provided through the fixed piece of the membrane, and the pressure adjustment port is extended through the pressure adjustment passage. It is what is communicated.
  • the auxiliary cell since the auxiliary cell has a structure in which the first sheet, the second sheet, and the working film are overlapped, the working chamber and the expansion / contraction auxiliary chamber are provided on both sides of the working film. Auxiliary cells of the structure can be easily formed.
  • the pressure regulation port is provided in the fixing piece extending outside the auxiliary cell, so that supply and discharge of fluid to the expansion / contraction auxiliary chamber of the auxiliary cell can be performed from the pressure regulation port without passing through the fluid chamber of the support cell.
  • the pressure adjustment port is provided apart from the portion where the user can be placed in the auxiliary cell, so that the user's contact with the pressure adjustment port is avoided and foreign matter Feelings can be avoided.
  • the elastic body in the body pressure support cushion described in any one of the first to third aspects, can be moved in and out of the action chamber. .
  • the fourth aspect it is possible to largely change the deformation characteristics of the action film with respect to the internal pressure change of the expansion / contraction auxiliary chamber by changing the elastic characteristics to different spring characteristics etc. It can be adjusted with a large change width. Therefore, for example, after the cushion characteristics of the support cell are roughly set by selecting the elastic body accommodated in the working chamber, the fluid is supplied or discharged through the pressure control port to the expansion / contraction auxiliary chamber of the auxiliary cell. Can fine tune the cushion characteristics of the support cell.
  • the supporting cell and the auxiliary cell are integrally formed by the first sheet and the second sheet which are superimposed on each other, and the supporting cell is the first sheet and the second sheet.
  • the auxiliary cell has a flexible working membrane between the first sheet and the second sheet, while the auxiliary cell includes a fluid chamber capable of expanding and contracting between the two sheets.
  • a working chamber is formed between the first sheet and the working membrane, and an elastic body elastically deformable between the first sheet and the working membrane is arranged in the working chamber.
  • an expansion / contraction assisting chamber is formed between the second sheet and the working film, and the supporting cell is provided between the overlapping surface of the first sheet and the second sheet.
  • Manufacturing of a pressure support cushion in which a communication passage connecting the fluid chamber and the expansion / contraction auxiliary chamber of the auxiliary cell is formed Forming the working chamber of the auxiliary cell containing the elastic body by overlapping and welding the outer peripheral portion of the working film to the first sheet, and welding the working film Forming the fluid chamber of the support cell and the expansion / contraction auxiliary chamber of the auxiliary cell by overlapping and welding the second sheet to the first sheet, and the first sheet and the working film And a step of forming the communication passage by a non-welded portion with the second sheet.
  • the support cell and the auxiliary cell can be integrally formed.
  • welding the first sheet and the working film and the second sheet together other than the formation portion of the communication path can be simultaneously formed, and the communication passage can be integrally formed between the support cell and the auxiliary cell.
  • the pressure control port communicated with the expansion / contraction auxiliary chamber of the auxiliary cell it is possible to supply or discharge fluid such as air to / from the expansion / contraction auxiliary chamber.
  • the auxiliary cell is configured to have the expansion / contraction auxiliary chamber and the action chamber apart from the action film, and the ratio of the volume of the expansion / contraction auxiliary chamber and the action chamber in the auxiliary cell when supplying or discharging the fluid to the expansion / contraction auxiliary chamber.
  • the change occurs, it is possible to suppress the change in shape of the support cell while realizing the change in deformation characteristics of the support cell.
  • the amount of fluid stored in the fluid chamber of the support cell and the expansion / contraction auxiliary chamber of the auxiliary cell can be appropriately changed by the pressure control port, it copes with, for example, the difference in weight to the user or preference to cushion characteristics. It is possible to cope with the difference in the use environment such as atmospheric pressure and temperature.
  • FIG. 2 is a plan view of the fluid cell mattress shown in FIG. 1;
  • FIG. 2 is a bottom view of the fluid cell mattress shown in FIG. 1;
  • It is sectional drawing which expands and shows the principal part of the fluid cell-type mattress of FIG. 1, Comprising: The figure corresponded to the VV cross section of FIG.
  • FIG. 1 It is sectional drawing which expands and shows the principal part of the fluid cell-type mattress of FIG. 1, Comprising: The figure which shows the state which supplied air from the pressure regulation opening. It is sectional drawing which shows the principal part of the fluid cell-type mattress shown in FIG. 1 in use condition, Comprising: (a) is the non-input state of the load to a support cell, (b) is the input state of the load to a support cell Show. Sectional drawing which shows the principal part of the fluid cell-type mattress as another one Embodiment of this invention.
  • FIGS. 1 to 4 show a fluid-cell mattress 10 (hereinafter mattress 10) as a first embodiment of a body pressure support cushion structured according to the present invention.
  • the mattress 10 includes a plurality of support cells 12 and a plurality of auxiliary cells 14 disposed on the left and right sides of the support cells 12.
  • the vertical direction refers to the direction perpendicular to the plane of the drawing of FIG. 3 which is the vertical vertical direction when the mattress 10 is in use
  • the horizontal direction refers to the lateral direction of FIG.
  • the support cell 12 includes a pressure receiving fluid chamber 20 as a fluid chamber between the upper outer membrane 16 and the lower outer membrane 18 formed of a flexible membrane such as a synthetic resin. It has a hollow structure provided.
  • the upper adventitia 16 has a reverse concave shape that opens downward
  • the lower adventitia 18 has a concave shape that opens upward.
  • a pressure receiving fluid chamber 20 is formed between the upper outer membrane 16 and the lower outer membrane 18 by abutting the openings of the membranes 18.
  • a support elastic body 22 is accommodated in the pressure receiving fluid chamber 20, a support elastic body 22 is accommodated.
  • the support elastic body 22 is a substantially parallelepiped, preferably a porous elastic body having open cells, and is made of, for example, a foamed urethane foam having a high foaming ratio.
  • the support cell 12 is allowed to be elastically deformed in the vertical direction, with deformation of the upper outer membrane 16 and the lower outer membrane 18 being permitted by inflow and discharge of air into the pressure receiving fluid chamber 20 and elastic deformation of the support elastic body 22. It is done.
  • the fluid in the pressure receiving fluid chamber 20 may be a gas other than air or a liquid, but preferably it is a compressible fluid so that it is shockable due to the compressibility of the fluid.
  • the cushioning property under load application can be improved, and the action force on the upper and lower outer membranes 16 and 18 can be reduced by the compressibility of the fluid under load application, and durability and load bearing performance can be improved.
  • the fluid in the pressure receiving fluid chamber 20 is air.
  • a plurality of support cells 12 having such a structure are arranged side by side in the front-rear direction and the left-right direction.
  • 189 support cells 12 are provided so as to form 21 rows in the front-rear direction and 9 rows in the left-right direction.
  • the mattress 10 of the present embodiment is formed by combining the divided bodies 24, 24 and 24 which are divided into three in the front and rear direction, seven rows and left and right in the front and rear direction constituting each divided body 24 are provided.
  • 63 supporting cells 12 arranged in 9 rows in the direction are integrally formed.
  • the 63 supporting cells 12 constituting the divided body 24 are formed integrally as a first sheet 78 to be described later, whose upper and outer membranes 16 are mutually connected, and the lower outer membranes 18 are mutually formed. , And integrally formed as a second sheet 80 described later.
  • each support cell 12 and 12 arranged adjacent to each other in each divided body 24 are arranged to be separated from each other at a predetermined distance as shown in FIGS.
  • a grid-like upper overlapping part 26 continuous to the lower end of 16 and a grid-like lower overlapping part 28 continuous to the upper end of the lower outer membrane 18 of each support cell 12 mutually extend between the adjacent support cells 12 and 12 It is piled up and welded.
  • each support cell 12 is positioned at a predetermined relative position by the upper overlapping portion 26 and the lower overlapping portion 28 and is permitted to tilt or displace due to the deformation of the upper overlapping portion 26 and the lower overlapping portion 28. .
  • the width dimension of the upper and lower overlapping portions 26 and 28 is preferably 3 mm or more from the viewpoints of ease of welding and securing reliability of welding, and the interval between the support cell 12 and the auxiliary cell 14 In order to prevent the distance (interval) from becoming too large and to form the upper surface of the mattress 10 without a sense of incongruity, it is desirable that the distance be 15 mm or less.
  • the width dimension of the region welded to each other in the upper and lower overlapping portions 26 and 28 is preferably 20% or more and 80% or less of the width dimension of the upper and lower overlapping portions 26 and 28. If the width of the region to be covered and welded is less than 20% of the width dimension of the upper and lower overlapping portions 26, 28, there is a risk that sufficient welding durability and reliability can not be secured, If it exceeds 80%, it becomes difficult to stably secure the substantial width dimension of the region to be welded due to an error in the relative position of the upper overlapping portion 26 and the lower overlapping portion 28 in the surface direction, etc. And other problems may occur.
  • the region to be welded is preferably set at the center in the left-right direction of the upper and lower overlapping portions 26, 28.
  • the relative positional deviation of the upper and lower overlapping portions 26 and 28 in the plane direction is preferably that of the upper and lower overlapping portions 26 and 28.
  • the width is preferably less than 20%, more preferably less than 10%.
  • an upper recessed groove 30 which opens in the lower surface and linearly extends in the left and right direction is provided in a portion located between the support cells 12 adjacent to the left and right in the upper overlapping portion 26.
  • a lower concave groove 32 which is formed in the lower overlapping portion 28 and which is located between the support cells 12 adjacent to each other on the left and right sides is formed with a lower concave groove 32 opened on the upper surface and linearly extending in the left and right.
  • a support cell communication passage 34 extending in the lateral direction is formed between the overlapping surfaces of the two. Both ends of the supporting cell communication passage 34 are in communication with the pressure receiving fluid chamber 20 of the supporting cell 12, and the pressure receiving fluid chambers 20 and 20 of the supporting cells 12 and 12 adjacent to each other communicate with each other through the supporting cell communication passage 34. It is done. In the present embodiment, the pressure receiving fluid chambers 20 of the nine support cells 12 arranged side by side communicate with each other by the support cell communication passage 34. In addition, the passage cross-sectional area, passage length, passage cross-sectional shape, and the like of the support cell communication passage 34 can be changed according to the required characteristics and the like.
  • auxiliary cells 14 are respectively disposed at the left and right outer sides of the support cells 12 positioned at both ends in the left-right direction.
  • the auxiliary cell 14 has a structure in which a flexible working film 40 is disposed between an upper outer membrane 36 and a lower outer membrane 38 formed of a flexible synthetic resin film or the like.
  • the action chamber 42 is formed between the membrane 36 and the action membrane 40
  • the hollow auxiliary chamber 44 is formed between the action membrane 40 and the lower outer membrane 38.
  • the expansion / contraction auxiliary chamber 44 may be a gas other than air or the like as the pressure receiving fluid chamber 20 of the support cell 12. Liquids and the like may also be contained.
  • the upper outer membrane 36 of the auxiliary cell 14 is integrally formed with the upper outer membrane 16 of the support cell 12 and provided on the first sheet 78 (described later), and the lower outer membrane 38 of the auxiliary cell 14 is A second sheet 80 (described later) is integrally formed with the lower outer membrane 18 of the support cell 12.
  • an action elastic body as an elastic body capable of being elastically deformed between the action film 40 and the lower outer membrane 38 is provided in the action chamber 42 provided on the opposite side of the expansion / contraction auxiliary chamber 44 across the action film 40. 46 are housed.
  • the action elastic body 46 is a foamed elastic body formed of the same material as the support elastic body 22 of the support cell 12 and, in the present embodiment, is a substantially parallelepiped as in the case of the support elastic body 22.
  • the action elastic body 46 may be a non-foaming elastic body as the support elastic body 22 does.
  • an air release hole 48 penetrating in the upper and lower direction is formed in the upper outer membrane 36 of the auxiliary cell 14 constituting the wall portion of the operation chamber 42, and the operation chamber 42 of the auxiliary cell 14 passes through the air release hole 48. It is open to the atmosphere.
  • the air release holes 48 are formed through the four corners of the upper wall portion of the upper outer membrane 36 in the present embodiment, the air release holes 48 may be formed through the center of the upper wall portion of the upper outer membrane 36, for example.
  • the cross-sectional shape, the cross-sectional area, and the like of the air release hole 48 are not particularly limited, and are appropriately set according to the required cushion characteristics of the support cell 12 and the like.
  • the auxiliary cells 14 are disposed on the left and right sides of the nine support cells 12 aligned in the left and right direction, and the upper outer membrane 36 of the auxiliary cells 14 is the upper outer membrane 16 of the support cells 12. And the lower outer membrane 38 of the auxiliary cell 14 is integrally formed with the lower outer membrane 18 of the support cell 12.
  • a plurality of the auxiliary cells 14 are disposed side by side in the front-rear direction of the mattress 10, and in the present embodiment, seven rows of support cells 12 are integrally formed in the front-rear direction in each divided body 24.
  • the seven left and right auxiliary cells 14 are integrally formed side by side in the front-rear direction.
  • the auxiliary cells 14 are disposed at the left and right ends of the mattress 10. However, for example, the auxiliary cells 14 may be disposed only at one of the left and right ends. It may be arranged side by side in the left-right direction.
  • the upper outer film 36 of the auxiliary cell 14 in each divided body 24 is integrally formed with an upper overlapping portion 50 that extends from the lower end to the periphery, and under the auxiliary cell 14.
  • the outer membrane 38 is integrally formed with a lower overlapping portion 52 extending from the upper end to the periphery.
  • the upper overlapping portion 50 and the lower overlapping portion 52 are overlapped and welded to each other, and the auxiliary cell 14 and the support cell 12 adjacent to each other on the left and right are connected to each other by the upper overlapping portion 50 and the lower overlapping portion 52
  • the auxiliary cells 14 and 14 adjacent to each other in the front and back direction are mutually connected by the upper overlapping portion 50 and the lower overlapping portion 52.
  • the auxiliary cell 14 and the support cell 12 adjacent in the left-right direction and the auxiliary cells 14 and 14 adjacent in the front-rear direction are disposed with the upper overlapping portion 50 and the lower overlapping portion 52 interposed therebetween, It is spaced apart at a predetermined interval.
  • a lower concave groove 54 which opens in the upper surface and extends linearly in the left and right direction.
  • the upper opening of the lower concave groove 54 is covered by the upper overlapping portion 50, and the overlapping surface of the upper overlapping portion 50 and the lower overlapping portion 52
  • An auxiliary cell communication passage 56 is formed as a communication passage extending leftward and rightward.
  • the auxiliary cell communication passage 56 has one left and right end portions communicated with the pressure receiving fluid chamber 20 of the support cell 12 and the other left and right end portions communicated with the expansion and contraction auxiliary chamber 44 of the auxiliary cell 14.
  • the pressure receiving fluid chamber 20 and the expansion / contraction auxiliary chamber 44 communicate with each other through the auxiliary cell communication passage 56.
  • the passage sectional area, passage length, passage sectional shape, etc. of the auxiliary cell communication passage 56 may be changed according to the required characteristics etc., in the present embodiment, it has a substantially semicircular passage sectional shape.
  • the passage sectional area is smaller than that of the support cell communication passage 34.
  • portions of the upper overlapping portion 50 and the lower overlapping portion 52 positioned on the left and right outside from the auxiliary cell 14 are upper and lower fixing pieces 58 and 60.
  • the upper and lower fixing pieces 58, 60 extend from the upper outer membrane 36 and the lower outer membrane 38 to the left and right more largely than the other portions of the upper overlapping portion 50 and the lower overlapping portion 52, and are overlapped vertically.
  • portions corresponding to the front-rear center of the auxiliary cell 14 are made as a non-sticking area 62 which can be separated without being fixed to each other and can be separated.
  • the non-sticking region 62 extends in the left-right direction, and one of the left and right ends reaches the inner peripheral end of the upper and lower overlapping portions 50 and 52 which are the butt portions of the upper and lower outer membranes 36 and 38 The other end is closed without reaching the outer peripheral end of the upper and lower overlapping portions 50, 52.
  • the fixing pieces 63 provided at the outer peripheral end of the working film 40 are disposed in a state of being vertically held.
  • the fixing piece 63 is welded to the upper fixing piece 58 in the entire longitudinal direction, while the fixing piece 63 is welded to the lower fixing piece 60 at a portion out of the non-fixing area 62. In the non-sticking area 62, they can be separably overlapped without being welded.
  • the space between the upper and lower fixing pieces 58, 60 in the non-fixing area 62 is communicated with the expansion / contraction assisting chamber 44 of the auxiliary cell 14 through the space between the lower fixing piece 60 and the middle fixing piece 63. It consists of 66.
  • a pressure adjustment port 64 is provided in the fixing piece 60 of the lower overlapping portion 52 in the auxiliary cell 14.
  • the pressure adjustment port 64 is formed in a cylindrical shape as a whole, and is provided to penetrate through the fixing piece 60 of the lower overlapping portion 52 and to project downward from the fixing piece 60, and the upper end portion of the pressure adjustment port 64 Is fixed to the non-fixed area 62 of the fixed piece 60.
  • the inner hole of the pressure adjusting port 64 is communicated with the pressure adjusting passage 66 formed between the fixing piece 58 of the upper overlapping portion 50 and the fixing piece 60 of the lower overlapping portion 52 in the non-fixing area 62.
  • the pressure control port 64 Since one end of the pressure control passage 66 is closed by welding of the fixing pieces 58 and 60 and the other end is in communication with the expansion / contraction auxiliary chamber 44, the pressure control port 64 has a pressure control port 64. It communicates with the expansion / contraction auxiliary chamber 44 of the auxiliary cell 14 via the pressure passage 66. Therefore, the expansion / contraction auxiliary chamber 44 of the auxiliary cell 14 can be opened to the atmosphere via the pressure control passage 66 and the pressure control port 64, and the pump 76 etc. are connected to the pressure control port 64 as shown in FIG. By doing so, it is also possible to actively supply or discharge air.
  • the pressure adjustment port 64 is preferably a soft member formed of a soft synthetic resin, a rubber elastic body or the like, so that the user on the mattress 10 should touch the pressure adjustment port 64 by any chance. Even troubles such as feeling pain can be avoided.
  • the lower opening of the inner hole of the pressure regulation port 64 located on the opposite side of the pressure regulation passage 66 can be closed by a plug 68 as a plug member.
  • the communication state to the outside and the shut-off state can be switched by attaching / detaching to the opening of the pressure adjustment port 64 of the plug 68.
  • the plug 68 has, for example, a small diameter columnar shape that can be inserted into the inner hole of the pressure regulation port 64 and has a flange-like hook at the lower end, so that the amount of insertion into the pressure regulation port 64 is limited. It has become.
  • the plug 68 may be a separate body from the pressure regulation port 64. For example, as shown in FIG.
  • the ridge of the plug 68 and the outer peripheral surface of the pressure regulation port 64 are connected flexibly. It may be mutually connected by the part 70, and structures, such as an air plug provided in a floating ring etc., can be applied to the pressure control port 64 and the plug 68. Further, in the present embodiment, the fixing pieces 58 and 60 are formed only in the upper overlapping portion 50 and the lower overlapping portion 52 provided in either the left or right auxiliary cell 14, and the pressure control port 64 and the pressure control passage 66. Although only the left and right ends of the mattress 10 are provided, the pressure regulation port 64 and the pressure regulation passage 66 may be provided in the auxiliary cells 14 on both the left and right sides.
  • the mattress 10 provided with the support cell 12 and the auxiliary cell 14 having such a structure is used in a state of being laid on the support surface 74 of the bed 72, as shown in FIG. 10 (a).
  • the three divisions 24, 24, 24 constituting the mattress 10 may be disposed on the support surface 74 of the bed 72 in a mutually fixed state beforehand, or the beds 72 are not fixed to each other. They may be arranged side by side on the support surface 74 of
  • the mattress 10 may be used in a state where the surface is covered with, for example, a sheet or cover made of a cloth, and adhesion of dirt to the mattress 10 can be avoided.
  • the pressure regulation port 64 and the pressure regulation passage 66 are not shown.
  • FIG. 10 is a schematic diagram to the last, and does not specifically show the deformation mode or the like of each of the cells 12 and 14.
  • the pressure receiving fluid chamber 20 of the support cell 12 is connected to the expansion / contraction assisting chamber 44 of the auxiliary cell 14 by the auxiliary cell communication passage 56, the pressure receiving fluid chamber 20 of the support cell 12 is compressed when the support cell 12 is compressed.
  • the air moves from the auxiliary cell 14 to the expansion / contraction auxiliary chamber 44 of the auxiliary cell 14.
  • auxiliary cell 14 has a structure in which the action chamber 42 is formed on the opposite side of the expansion / contraction auxiliary chamber 44 across the action film 40, air from the support cell 12 to the expansion / contraction auxiliary chamber 44 When it flows in and the internal pressure of the expansion / contraction auxiliary chamber 44 rises, the working film 40 is pushed to the action chamber 42 side, the volume of the expansion / contraction auxiliary chamber 44 increases, and the volume of the operation chamber 42 decreases. Thereby, it is made possible for auxiliary cell 14 to fully allow inflow of air from support cell 12, avoiding a significant change in external shape.
  • the action elastic body 46 is accommodated in the action chamber 42 and the deformation characteristic of the action film 40 is set according to the spring characteristic of the action elastic body 46, the spring characteristic of the action elastic body 46 is appropriately set.
  • the cushioning characteristics of the support cell 12 can also be adjusted by selecting.
  • the passage cross-sectional area of the support cell communication passage 34 communicating the pressure receiving fluid chambers 20 and 20 of the support cells 12 and 12 adjacent to each other is the pressure receiving fluid chamber of the support cell 12 and the auxiliary cell 14 adjacent to each other. It is larger than the passage cross sectional area of the auxiliary cell communication passage 56 which communicates the 20 and the expansion / contraction auxiliary chamber 44. Therefore, the amount of movement of air between the support cells 12 and 12 is larger than the amount of movement of air between the support cell 12 and the auxiliary cell 14, and the expansion and contraction of the support cell 12 is preferentially generated. Since the upper surface of the support cell 12 is quickly deformed into a shape along the user's body surface, the body pressure can be effectively dispersed.
  • the compression load acting on the support cell 12 is released by, for example, removing the user from above the mattress 10, the shape restoration property of the support elastic body 22 accommodated in the pressure receiving fluid chamber 20 of the support cell 12 , The vertically compressed support cells 12 extend vertically. Accordingly, the pressure in the pressure receiving fluid chamber 20 of the support cell 12 is reduced, so that air flows in from the pressure receiving fluid chamber 20 of the other support cells 12 and the expansion / contraction auxiliary chamber 44 of the auxiliary cell 14. As a result, the support cell 12 is promptly restored to the initial shape before the compressive deformation by releasing the compressive load, and the unevenness on the upper surface of the mattress 10 is eliminated, thereby deteriorating the initial sleeping comfort at the time of next use Problems such as sticking are avoided.
  • the mattress 10 blows in air from the pressure regulation port 64 or mounts the pump 76 on the pressure regulation port 64 as shown in FIG. It is possible to send air to 44 to increase the internal pressure of the expansion / contraction auxiliary chamber 44.
  • the action film 40 of the auxiliary cell 14 is pushed to the action chamber 42 side, and the action elastic body 46 in the action chamber 42 is vertically compressed.
  • the support cell 12 since the allowable amount of further compression deformation of the acting elastic body 46 becomes smaller and the expansion ratio of the volume of the expansion / contraction auxiliary chamber 44 becomes smaller, when the compressive load acts on the support cell 12, the support cell 12 The amount of air that can flow from the pressure receiving fluid chamber 20 to the expansion / contraction auxiliary chamber 44 of the auxiliary cell 14 is reduced. Therefore, deformation of the support cell 12 is less likely to occur, and the cushioning characteristics of the support cell 12 become hard.
  • air is discharged from the expansion / contraction auxiliary chamber 44 in the auxiliary cell 14 by compressing the auxiliary cell 14 with the pressure adjustment port 64 open to the atmosphere or sucking out air by the pump 76 connected to the pressure adjustment port 64.
  • the internal pressure of the expansion / contraction auxiliary chamber 44 can be lowered by discharging it.
  • the excess air stored in the expansion / contraction auxiliary chamber 44 can be discharged, and when a compressive load is applied to the support cell 12, the expansion / contraction auxiliary chamber of the auxiliary cell 14 from the pressure receiving fluid chamber 20 of the support cell 12
  • the cushioning characteristics of the support cell 12 are softened.
  • the mattress 10 is capable of adjusting the deformation characteristics of the working film 40 in the auxiliary cell 14 by the supply and discharge of air through the pressure regulation port 64, whereby the pressure of the support cell 12 is received.
  • the fluid flow characteristics between the fluid chamber 20 and the expansion / contraction auxiliary chamber 44 of the auxiliary cell 14 can be adjusted, and the cushion characteristics of the support cell 12 can be adjusted.
  • the change in the initial shape of the support cell 12 due to the change in the internal pressure of the pressure receiving fluid chamber 20 is suppressed as compared to the case where the internal pressure of the support cell 12 is adjusted to adjust the cushion characteristics of the support cell 12.
  • the contact area of the user to the user may be less likely to occur or be reduced.
  • the air in the pressure-receiving fluid chamber 20 of the support cell 12 and the air in the expansion / contraction auxiliary chamber 44 of the auxiliary cell 14 are discharged from the pressure control port 64 to thinly deform the mattress 10 to provide space necessary for storage or transportation. It is also possible to make
  • the pressure adjustment port 64 is communicated with the expansion / contraction auxiliary chamber 44 of the auxiliary cell 14 via a pressure adjustment passage 66 formed by utilizing the non-adhesion regions 62 of the upper and lower fixed pieces 58, 60.
  • the user is not likely to touch the pressure adjustment port 64 because they are disposed on the left and right outside with respect to the upper and lower outer membranes 36 and 38 of 14, and the discomfort and pain due to the contact to the pressure adjustment port 64 are used. Hard to give to people.
  • the pressure adjustment port 64 is in communication with the expansion / contraction auxiliary chamber 44 of the auxiliary cell 14 without passing through the pressure receiving fluid chamber 20 of the support cell 12, so that the supply and discharge of air from the pressure adjustment port 64 are performed. Since the internal pressure directly affects the internal pressure, the deformation characteristics of the working film 40 in the auxiliary cell 14 can be effectively adjusted.
  • the mattress 10 of this embodiment can be manufactured by the manufacturing method which has each following process, for example.
  • the first sheet 78 integrally including the upper outer membrane 16 of the support cell 12, the upper outer membrane 36 of the auxiliary cell 14, the upper overlapping portions 26 and 50, and the upper fixing piece 58.
  • a second sheet 80 integrally provided with the lower outer membrane 18 of the support cell 12, the lower outer membrane 38 of the auxiliary cell 14, the lower overlapping portions 28 and 52, and the lower fixing piece 60 while being prepared.
  • the air opening hole 48 is formed in the portion constituting the upper outer membrane 36 of the first sheet 78.
  • a pressure regulation port 64 is fixed to the second sheet 80.
  • the working film 40 is prepared separately from the first sheet 78 and the second sheet 80. Furthermore, the support elastic body 22 of the support cell 12 and the action elastic body 46 of the auxiliary cell 14 are respectively prepared.
  • the action elastic body 46 is inserted into the concave portion forming the upper outer membrane 36 of the auxiliary cell 14 in the first sheet 78, and the action film 40 is overlapped so as to close the opening, and the entire periphery And weld with the first sheet 78.
  • the process of forming the working chamber 42 of the auxiliary cell 14 containing the acting elastic body 46 between the first sheet 78 and the working film 40 is completed.
  • the action elastic body 46 is elastically deformable between the first sheet 78 and the action film 40.
  • the second sheet 80 is superimposed on the first sheet 78 to which the working film 40 is welded, and the upper outer membrane 16 of the first sheet 78 and the lower outer membrane 18 of the second sheet 80 are The support elastic body 22 is disposed therebetween, and the upper overlapping portions 26, 50 of the first sheet 78 and the lower overlapping portions 28, 52 of the second sheet 80 are welded.
  • the plurality of support cells 12 are integrally formed by the first sheet 78 and the second sheet 80, and the pressure receiving fluid chamber 20 of the support cell 12 containing the support elastic body 22 is made into the first sheet 78 and the second sheet 78.
  • the auxiliary cell 14 is integrally formed with the support cell 12 by the first sheet 78 and the second sheet 80 to form the expansion / contraction auxiliary chamber 44 of the auxiliary cell 14 with the second sheet 80.
  • the process of forming between the working films 40 is completed.
  • the support cell 12 including the pressure receiving fluid chamber 20 and the auxiliary cell 14 including the working chamber 42 and the expansion / contraction auxiliary chamber 44 are integrally formed. Be done.
  • the auxiliary cell 14 has a structure in which the action film 40 is disposed between the overlapping surfaces of the first sheet 78 and the second sheet 80, and three sheet-like members 78, 40, 80 are vertically stacked. It has the following structure.
  • the second sheet 80 may be welded only to the first sheet 78, but may also be welded to the outer peripheral portion of the working film 40.
  • the outer peripheral portion of the working film 40 is in a non-fixed and separated state with respect to the lower overlapping portion 52 of the second sheet 80.
  • the sticking piece 58 of the first sheet 78 and the sticking piece 60 of the second sheet 80 are non-stickingly and separably overlapped, and the second sheet 80 is sticking
  • the piece 60 and the fixed piece 63 of the working film 40 are also in a non-fixed and separably overlapped state.
  • the auxiliary cell communication passage communicated with the expansion / contraction auxiliary chamber 44 by the non-welded portion by not welding the working film 40 and the second sheet 80 in the non-fixed region 62 and the formation portion of the auxiliary cell communication passage 56 The process of forming the pressure control passage 66 and the pressure control passage 66 is completed.
  • the support cell 12 and the auxiliary cell 14 are integrally formed, but also the support cell communication passage 34, the auxiliary cell communication passage 56 and the pressure control passage 66 are supported. Since it is integrally formed with 12 and the auxiliary cell 14, the divided body 24 of the mattress 10 can be easily manufactured with a small number of parts. Moreover, after the first sheet 78 and the working film 40 are welded to form the working chamber 42, the first sheet 78 and the working film 40 and the second sheet 80 are welded to perform the pressure receiving fluid chamber 20 and the expansion / contraction assistance By forming the chamber 44, the auxiliary cell communication passage 56 can be easily formed by the first sheet 78 and the non-welded portion of the working film 40 and the second sheet 80.
  • the pressure adjustment port 64 may be provided in the upper outer membrane 36 or the lower outer membrane 38 of the auxiliary cell 14. Furthermore, the pressure adjustment port 64 may be provided in the support cell 12, and in this case, the pressure adjustment port 64 communicates with the expansion / contraction auxiliary chamber 44 of the auxiliary cell 14 via the pressure receiving fluid chamber 20.
  • the pressure adjustment port 64 may not necessarily be provided on the second sheet 80, and may be provided on the working film 40, for example.
  • the right and left dimensions of the fixing piece 58 of the first sheet 78 are made smaller, and the fixing piece 63 of the working film 40 is left and right outer than the fixing piece 58
  • the fixing piece 63 of the working film 40 is welded to the fixing piece 60 of the second sheet 80, and a pressure control passage 66 is formed between the fixing pieces 60 and 63.
  • the pressure adjusting port 64 of the auxiliary cell 82 is provided on the fixing piece 63 of the working film 40 and protrudes upward, and is communicated with the pressure adjusting passage 66 formed between the fixing pieces 60 and 63.
  • the formation position and the number of the air release holes, the cross sectional area of the holes, the shape of the holes and the like are not particularly limited.
  • one relatively large air release hole 86 is formed, and the action elastic body 46 can be moved into and out of the action chamber 42 through the air release hole 86. It may be taken.
  • the required deformation characteristics of the action film 40 from the plurality of kinds of action elastic bodies 46a, 46b, 46c. One can be selectively accommodated in the working chamber 42 to achieve the desired characteristics.
  • the cushioning characteristics of the support cell 12 are significantly changed as compared with the adjustment of the cushioning characteristics of the support cell 12 due to the air entering / out of the expansion / contraction auxiliary chamber 44 by the pressure control port 64. It also becomes possible. It is not necessary for the action elastic body 46 to be taken in and out of the action chamber 42 through the air opening hole 86, and an openable and closable entrance may be provided separately from the air opening hole 86.
  • FIGS. 12 and 14 show the auxiliary cells 84 and 92 alone, the auxiliary cells 84 and 92 may be integrally formed with the support cell 12 as in the first embodiment.
  • the outer wall portion of the auxiliary cell 14 is formed of the sheet-like upper outer membrane 36 and the lower outer membrane 38, respectively, which corresponds to the upper outer membrane 36 constituting the wall portion of the action chamber 42.
  • the part is not necessarily limited to the sheet shape.
  • the upper half of the outer wall portion of the auxiliary cell 14 may be a mesh member 90 having a large number of meshes, and in this case the working chamber 42
  • the atmosphere opening hole which is open to the atmosphere is constituted by the mesh.
  • the portion corresponding to the upper and outer membrane 36 constituting the wall of the working chamber 42 may be compressible between the working elastic body 46 and the working membrane 40, for example, the aid shown in FIG.
  • a portion corresponding to the epicardium 36 can also be configured by the strip member 94.
  • the support cell communication passage 34 and the auxiliary cell communication passage 56 are formed between the support cell 12 and the auxiliary cell 14 on the left and right, but for example, between the front and back of the support cell 12 and the auxiliary cell 14. Also, a communication passage can be provided. Furthermore, when at least one of the pressure-receiving fluid chambers 20, 20 of the support cells 12, 12 adjacent to each other and the expansion / contraction auxiliary chambers 44, 44 of the auxiliary cells 14, 14 adjacent to each other in the front-rear direction It is not necessary to provide the pressure regulation ports 64 in all the auxiliary cells 14 arranged in front and back, and one pressure regulation port 64 may enable supply and discharge of air etc. to the expansion / contraction auxiliary chambers 44 of the plurality of auxiliary cells 14.
  • the supporting cell communication passage 34 and the auxiliary cell communication passage 56 are not necessarily limited to the structure integrally provided to the supporting cell 12 and the auxiliary cell 14, and for example, can be retrofitted to the supporting cell 12 or the auxiliary cell 14
  • the supporting cell communication passage 34 and the auxiliary cell communication passage 56 can also be configured by the inner hole of the separate tube.
  • the support cells 12 are respectively formed by bringing the openings of the upper outer membrane 16 and the lower outer membrane 18 in contact with each other into a concave shape, and the auxiliary cells 14 each have a concave shape.
  • the openings of the membrane 36 and the lower adventitia 38 are formed to abut each other, for example, the second outer sheet 80 provided with the lower adventitia 18 and 38 has a flat membrane shape and the lower outer membrane 18 and 38 is flat. It can also be made into any shape.
  • the support cell 12 and the auxiliary cell 14 are disposed on the entire support surface 74 of the bed 72.
  • the support cell 12 and the auxiliary cell 14 may be disposed on the support surface 74 of the bed 72. May be partially disposed.
  • the fluid cell mattress may be made smaller relative to the support surface 74 of the bed 72, for example, so that the fluid cell mattress may be applied to only part of the support surface 74 of the bed 72 in the front-rear direction.
  • the fluid cell mattress may be provided with a portion formed of the support cell 12 and the auxiliary cell 14 and a portion formed of a synthetic resin elastomer such as urethane foam.
  • the mattress 10 for a bed is illustrated as an example of the body pressure support cushion according to the present invention in the above embodiment, the present invention relates to, for example, a cushion or pillow placed on the seating surface of a chair (including a wheelchair). And so on.
  • Fluid cell mattress body pressure support cushion
  • 12 support cell
  • 14, 82, 84, 88, 92 auxiliary cell
  • 20 pressure receiving fluid chamber (fluid chamber)
  • 40 working membrane
  • 42 working chamber
  • 44 expansion / contraction auxiliary chamber
  • 46 acting elastic body (elastic body)
  • 48 86: air opening hole
  • 56 auxiliary cell communication path (communication path)
  • 64 pressure regulation port
  • 66 Pressure adjustment passage
  • 68 plug body (plug member)
  • 78 first sheet
  • 80 second sheet

Landscapes

  • Mattresses And Other Support Structures For Chairs And Beds (AREA)
  • Invalid Beds And Related Equipment (AREA)

Abstract

L'invention concerne : un coussin de support de la pression du corps qui présente une nouvelle structure et avec lequel un excellent effet de distribution de la pression du corps peut être obtenu par le biais d'une structure simple, et les caractéristiques de déformation d'expansion/de contraction d'une cellule de support peuvent être réglées simplement ; et un procédé de fabrication du coussin de support de la pression du corps doté d'un seul tenant d'une cellule de support et d'une cellule auxiliaire. Ce coussin de support de la pression du corps (10) comprend : (a) une cellule de support (12) qui est dotée d'une chambre de fluide (20) et est ainsi apte à une déformation d'expansion/de contraction ; (b) une cellule auxiliaire (14) dotée d'une chambre d'aide à l'expansion/la contraction (44) qui communique avec la chambre de fluide (20) ; (c) une chambre d'action (42) formée sur le côté opposé de la chambre d'aide à la dilatation/la contraction dans la cellule auxiliaire avec un film d'action flexible (40) interposé entre ces dernières ; (d) un corps élastique (46) stocké dans la chambre d'action (42) ; (e) un trou d'ouverture atmosphérique (48) qui ouvre la chambre d'action (42) sur l'atmosphère ; (f) un orifice de réglage de pression (64) qui permet à un fluide d'être fourni à la chambre d'aide à l'expansion/la contraction (44) ou évacué de cette dernière ; et (g) un élément de couvercle (68) qui commute l'orifice de réglage de pression (64) entre un état de communication et un état bloqué.
PCT/JP2018/023504 2017-07-18 2018-06-20 Coussin de support de la pression du corps et procédé de fabrication associé WO2019017137A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2017-138963 2017-07-18
JP2017138963A JP2019017729A (ja) 2017-07-18 2017-07-18 体圧支持クッションとその製造方法

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WO2019017137A1 true WO2019017137A1 (fr) 2019-01-24

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WO (1) WO2019017137A1 (fr)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5873137A (en) * 1996-06-17 1999-02-23 Medogar Technologies Pnuematic mattress systems
JP2001161759A (ja) * 1999-09-30 2001-06-19 Matsumoto Giken Kk 床ずれ防止エアマット
US20100146709A1 (en) * 2008-12-17 2010-06-17 Stryker Corporation Patient support
JP2012040190A (ja) * 2010-08-19 2012-03-01 Keepu:Kk エアセル及びそれを備えたエアマット
WO2017043217A1 (fr) * 2015-09-11 2017-03-16 住友理工株式会社 Coussin de support de la pression du corps et cellules auxiliaires le constituant

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5873137A (en) * 1996-06-17 1999-02-23 Medogar Technologies Pnuematic mattress systems
JP2001161759A (ja) * 1999-09-30 2001-06-19 Matsumoto Giken Kk 床ずれ防止エアマット
US20100146709A1 (en) * 2008-12-17 2010-06-17 Stryker Corporation Patient support
JP2012040190A (ja) * 2010-08-19 2012-03-01 Keepu:Kk エアセル及びそれを備えたエアマット
WO2017043217A1 (fr) * 2015-09-11 2017-03-16 住友理工株式会社 Coussin de support de la pression du corps et cellules auxiliaires le constituant

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