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WO2018147374A1 - Structure gonflable - Google Patents

Structure gonflable Download PDF

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Publication number
WO2018147374A1
WO2018147374A1 PCT/JP2018/004418 JP2018004418W WO2018147374A1 WO 2018147374 A1 WO2018147374 A1 WO 2018147374A1 JP 2018004418 W JP2018004418 W JP 2018004418W WO 2018147374 A1 WO2018147374 A1 WO 2018147374A1
Authority
WO
WIPO (PCT)
Prior art keywords
enclosure
bag body
bag
inflatable structure
endless belt
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/JP2018/004418
Other languages
English (en)
Japanese (ja)
Inventor
茂計 森川
利和 樫野
実里 森川
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Yokoi Manufacturing Co Ltd
Original Assignee
Yokoi Manufacturing Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Yokoi Manufacturing Co Ltd filed Critical Yokoi Manufacturing Co Ltd
Publication of WO2018147374A1 publication Critical patent/WO2018147374A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
    • B66F3/00—Devices, e.g. jacks, adapted for uninterrupted lifting of loads
    • B66F3/24—Devices, e.g. jacks, adapted for uninterrupted lifting of loads fluid-pressure operated
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
    • B66F3/00—Devices, e.g. jacks, adapted for uninterrupted lifting of loads
    • B66F3/24—Devices, e.g. jacks, adapted for uninterrupted lifting of loads fluid-pressure operated
    • B66F3/25—Constructional features
    • B66F3/35—Inflatable flexible elements, e.g. bellows
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G7/00—Devices for assisting manual moving or tilting heavy loads
    • B65G7/02—Devices adapted to be interposed between loads and the ground or floor, e.g. crowbars with means for assisting conveyance of loads
    • B65G7/06—Devices adapted to be interposed between loads and the ground or floor, e.g. crowbars with means for assisting conveyance of loads using fluid at high pressure supplied from an independent source to provide a cushion between load and ground

Definitions

  • the present invention relates to an inflatable structure that is expanded by being filled with a fluid such as air or water to form a structure.
  • an air inflatable air jack formed by a flexible pressure-resistant bag-like body having an air inlet is known (for example, Patent Documents 1 and 2). etc).
  • the above conventional air jack has high pressure resistance and strength despite its light weight, and is expected to be applied to other applications.
  • the main object of the present invention is to provide an inflatable structure that can be used for applications other than jacks and can obtain the necessary expansion in the height direction.
  • a first aspect of an inflatable structure according to the present invention includes a bag formed of a resin film, a fluid supply unit for supplying fluid into the bag, and the bag
  • An enclosure that surrounds the bag, and the enclosure includes three or more endless belt-like woven fabrics, each of the three or more endless belt-like fabrics intersecting each other at two locations on both sides of the bag body. While surrounding the outer periphery of the bag body, the bag body is connected at a crossing portion.
  • the fluid supply unit includes a flexible hose attached to the bag, and the flexible hose It passes between the bag body and the surrounding body and extends from between the adjacent endless belt-like woven fabrics.
  • the enclosure includes a first enclosure that encloses the bag body, and a second enclosure that encloses the first enclosure.
  • the first envelope and the second envelope are disposed so that the endless belt-like woven fabrics intersect each other.
  • An exterior body is further provided.
  • a ring-shaped member is further provided to keep the periphery smaller than the maximum expansion diameter of the bag body.
  • the sixth aspect of the inflatable structure according to the present invention further includes a waterproof coating in the first aspect.
  • the inflatable structure according to the present invention can be formed into a spherical shape, a cylindrical shape, a bowl shape, and the like, and can be used for various applications in addition to an air jack and is necessary in the height direction. Expansion can be obtained.
  • FIG. 7 is a perspective view showing an inflatable structure obtained by waterproof covering the enclosure shown in FIG. 6 with a part of the waterproof cover cut away. It is a perspective view which shows the inflatable structure to which the cylindrical exterior body which is another component of this invention was mounted
  • the inflatable structure 1 includes an airtight bag 2 (FIGS. 1 and 2) formed of a resin film.
  • the bag body 2 includes two resin films 2a and 2b formed in a predetermined shape such as a circular shape, and the peripheral edge portion 2c of the two resin films 2a and 2b has a width of several mm to several tens of mm.
  • welding thermal welding, ultrasonic welding, or high-frequency welding
  • the welded peripheral edge 2c can be reinforced by adhering a duct tape (not shown).
  • the bag body 2 can be formed as a double bag body by putting another bag body 2 in one bag body 2 or can be triple or quadruple.
  • the resin films 2a and 2b forming the bag body 2 a multilayer film or a single layer film excellent in gas barrier properties is preferably used.
  • the oxygen permeability is 40 cc / m 2 ⁇ atm ⁇ day or less and the moisture permeability is A multilayer film or a single layer film of 8 g / m 2 ⁇ day or less may be used.
  • the resin films 2a and 2b forming the bag body 2 have a thickness of 70 ⁇ m, a tensile strength of 45 MPa, a tensile elongation of 350%, a tear strength of 140 N / mm, an impact strength of 140 N ⁇ cm, and a piercing.
  • Triple nylon (trade name) manufactured by MICS Chemical Co., Ltd. having a strength of 5.0 N, an oxygen permeability of 40 cc / m 2 ⁇ atm ⁇ day, and a moisture permeability of 8 g / m 2 ⁇ day is used.
  • Resin films 2a and 2b forming bag 2 are, for example, thermoplastic polyurethane film, polylactic acid film, polyester film formed of PET, PEN, PBT, EVOH, PVA, barrier nylon, etc. instead of triple nylon Single layer film such as a barrier resin film, or multilayer film, for example, 4 layer film (for example, Diamilon M-G708 (Diamilon is a registered trademark)), 5 layer film (for example, made by MICS Chemical Co., Ltd. A barrier (HB)) or the like can also be used.
  • 4 layer film for example, Diamilon M-G708 (Diamilon is a registered trademark)
  • 5 layer film for example, made by MICS Chemical Co., Ltd.
  • a barrier (HB) or the like can also be used.
  • the bag body 2 includes a fluid supply unit 3 for supplying fluid such as compressed air into the bag body 2.
  • the fluid supply unit 3 includes a flexible hose 3a.
  • the flexible hose 3a can be formed by, for example, a pressure resistant hose made of a special polyurethane resin.
  • One end of the flexible hose 3a is inserted into the bag body 2 and attached to the bag body 2 in an airtight and liquid-tight manner.
  • a connector 3b such as a hose coupler can be attached to the other end of the flexible hose 3a.
  • the fluid supplied into the bag body 2 flows out of the bag body 2 by, for example, connecting the connector 3b to a check valve built-in type or by connecting an on-off valve (not shown) separately to the connector 3b.
  • Outflow prevention means for preventing may be provided.
  • a connecting tool such as a hose that supplies fluid from a fluid supply source such as a compressor, a manual air inlet, and a water tap
  • the fluid supply source can be used as a bag body.
  • the fluid can be supplied into 2.
  • FIG. 3 is a plan view showing a state where air is not injected into the bag body 2 wrapped by the envelope body 4.
  • FIG. 4 is a perspective view showing a state in which air is injected into the bag body 2 wrapped with the envelope body 4.
  • FIG. 5 is an exploded perspective view showing the four endless belt-like woven fabrics 4a, 4b, 4c, and 4d constituting the enclosure for easy understanding.
  • the bag body 2 is entirely wrapped by the envelope body 4.
  • the envelope 4 includes three or more endless belt-like woven fabrics. 3 and 4 show the envelope 4 that wraps the bag 2 with four endless belt-like woven fabrics 4a, 4b, 4c, and 4d.
  • the number and size of the endless belt-like woven fabrics 4a, 4b, 4c, and 4d can be appropriately changed depending on the size of the bag body 2 to be surrounded.
  • the four endless belt-like woven fabrics 4a, 4b, 4c, and 4d have the same peripheral length, but the outer peripheral side may be longer than the inner peripheral side.
  • Each of the endless belt-like woven fabrics 4a, 4b, 4c, and 4d forming the enclosure 4 is wound in order from the inside so as to surround the outer periphery of the bag body 2 while intersecting each other at two locations on both sides of the bag body 2. ing.
  • Each of the endless belt-like woven fabrics 4a, 4b, 4c, and 4d is connected by a connecting means 4n such as sewing at a portion 4X that intersects each other.
  • a connecting means 4n such as sewing at a portion 4X that intersects each other.
  • the adjacent endless belt-like woven fabrics 4a, 4b, 4c, and 4d preferably, when the bag body 2 is inflated, the adjacent endless belt-like woven fabrics partially overlap each other, and no gap is formed between the adjacent endless belt-like woven fabrics.
  • FIGS. 3 and 4 For convenience of illustration, in FIGS. 3 and 4, only one portion is shown on the upper surface of the portion 4 ⁇ / b> X that intersects the upper and lower sides of the bag body 2, and the other one is hidden on the lower surface. It is not shown in the figure.
  • the endless belt-like woven fabrics 4a, 4b, 4c, and 4d are belt-shaped woven fabrics woven in an endless belt shape with synthetic fiber warp yarns and synthetic fiber weft yarns, or synthetic fiber warp yarns and synthetic fiber weft yarns. It can be formed by a woven fabric made by stitching both ends of the woven fabric into an endless shape.
  • synthetic fibers used for the endless belt-like woven fabrics 4a, 4b, 4c, and 4d aramid fibers, polyester fibers, polypropylene fibers, and the like are preferably used.
  • the endless belt-like woven fabrics 4a, 4b, 4c, and 4d are preferably woven fabrics excellent in pressure resistance and wear resistance, and are used for fire fighting woven in plain or twill using synthetic fiber warps and synthetic fiber wefts.
  • a synthetic fiber woven fabric used for a hose can be preferably used.
  • Such endless belt-like woven fabrics 4a, 4b, 4c, and 4d also have non-stretchability.
  • the envelope body 4 is expanded by the bag body 2.
  • the bag body 2 is designed so that the volume of the bag body 2 is larger than the volume of the maximum space surrounded by the envelope body 4. Accordingly, when the bag body 2 is filled with a fluid such as compressed air, the bag body 2 and the enclosure 4 are brought into a pressure contact state, and when the space surrounded by the enclosure 4 reaches the maximum, that of the bag body 2 is reached. It is limited by the bulge enclosure 4 described above. Note that FIG. 3 shows the bag body 2 in a simple circle by simplifying the illustration, but actually, the bag body 2 in a state not filled with fluid is crumpled inside the enclosure 4. ing.
  • the flexible hose 3a passes between the bag body 2 and the envelope body 4 and extends from between the adjacent endless belt-like woven fabrics 4a and 4d. Therefore, when the bag body 2 is inflated, the bag body 2 and the envelope body 4 are sandwiched between the bag body 2 and the envelope body 4.
  • the four endless belt-like woven fabrics 4a, 4b, 4c, and 4d have a substantially polygonal shape (in the illustrated example, approximately The bag body 2 is wound so as to exhibit an octagonal shape.
  • the planar view shape when the bag body 2 is inflated becomes a rounded shape.
  • the inflatable structure 1 swells in a spherical shape.
  • the inflatable structure 1 swells in a spherical shape, so that it can obtain a higher height than a conventional flat and square air jack having a plan view.
  • a conventional flat air jack that is flat and has a square shape in plan view is limited in height when expanded because the corner portions of the four corners cannot expand.
  • the enclosure 4 is likely to have a gap between the adjacent endless belt-like woven fabrics 4a, 4b, 4c, and 4d at a “corner” portion that exhibits a substantially polygonal shape when not inflated. Therefore, as shown in FIG. 6, a second surrounding body 4 ′ that further wraps the surrounding body (first surrounding body) 4 that directly wraps the bag body 2 can be provided so that this gap does not occur.
  • Each of the endless woven fabrics 4a ′, 4b ′, 4c ′, and 4d ′ of the second enclosure 4 intersects with each of the endless woven fabrics 4a, 4b, 4c, and 4d of the first enclosure 4. It is arranged.
  • the endless belt-like woven fabrics 4a ′, 4b ′, 4c ′, and 4d ′ of the second enclosure 4 ′ are set to have a longer circumference than the endless belt-like fabrics 4a, 4b, 4c, and 4d of the first envelope 4 be able to.
  • the waterproof body 5 ′ formed as described above is provided with a waterproof coating 5 made of an elastomer material such as a thermoplastic polyurethane elastomer or other synthetic resin material, thereby providing waterproofness and durability. You can have it.
  • the waterproof coating 5 can be provided on the outermost side of the inflatable structure.
  • a tubular exterior body 6 is extrapolated outside the enclosure 4.
  • the tubular exterior body 6 can be formed of the same material as the endless belt-like woven fabric.
  • the inner diameter M of the cylindrical outer casing 6 is 1 ⁇ 2 of the circumferential length of the endless woven fabrics 4a, 4b, 4c, 4d (see FIG. Is suitably set within a range of 1/15 to 1/3 of the circumference of the endless woven fabric.
  • the cylindrical exterior body 6 is fixed to the enclosure 4 by sewing or an adhesive.
  • the inflatable structure 1 can be formed in a columnar shape with various dimensional ratios.
  • a ring-shaped member 7 is wound around the outer periphery of the enclosure 4.
  • the ring-shaped member 7 is preferably fixed to the enclosure 4 at least partially so as not to be misaligned by fixing means 7a such as adhesion or adhesion.
  • fixing means 7a such as adhesion or adhesion.
  • a waterproof coating similar to the waterproof coating 5 shown in FIG. 7 can be covered on the envelope 4 around which the ring-shaped member 7 is wound.
  • the ring-shaped member 7 is provided with a ring-shaped member 7 for holding the periphery of at least a part of the envelope 4 that wraps the bag body 2 when the bag body 2 is inflated to a diameter smaller than the maximum expansion diameter of the bag body 2.
  • the ring-shaped member 7 can be formed of a string, a thread, a belt, a tape, or the like.
  • the ring-shaped member 7 is five string rings wound at intervals, but the number of the ring-shaped members 7 may be appropriately selected. For example, if there is only one lace that constitutes the ring-shaped member 7, the shape of the inflatable structure 1 when it is inflated becomes a substantially saddle shape. By appropriately changing the number and diameter of the ring-shaped members 7, the height of the inflatable structure 1 can be set as appropriate.
  • the inflatable structure according to the present invention includes air jacks, floating fences, piers, simple piles, simple safety fences, sign poles, rollers used when moving luggage, cushions for luggage during transportation, air tent pillars It can be used for various materials such as timber, simple dredging materials, marine partitioning materials, shaft plugs in sewage pipe construction.
  • the inflatable structure having the above-described configuration is lightweight and foldable, so that it has excellent storability and transportability and can form a robust structure by injecting fluid.

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  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Geology (AREA)
  • Mechanical Engineering (AREA)
  • Structural Engineering (AREA)
  • Revetment (AREA)

Abstract

L'invention concerne une structure gonflable qui peut être de diverses formes, qui peut être utilisée pour des applications autres que des vérins, et qui peut fournir une hauteur de gonflage nécessaire. La présente invention comprend : un corps de sac (2), qui est formé à partir d'un film de résine ; une unité d'alimentation en fluide (3) pour alimenter le corps de sac (2) en fluide ; et une enceinte (4) qui entoure le corps de sac (2). L'enceinte comporte au moins trois bandes de tissu sans fin tissées, qui entourent la périphérie externe du corps de sac (2), tout en se croisant mutuellement au niveau de deux parties sur les deux côtés du corps de sac (2), et qui sont reliées au niveau de la partie d'intersection de ces dernières.
PCT/JP2018/004418 2017-02-09 2018-02-08 Structure gonflable Ceased WO2018147374A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2017-022637 2017-02-09
JP2017022637 2017-02-09

Publications (1)

Publication Number Publication Date
WO2018147374A1 true WO2018147374A1 (fr) 2018-08-16

Family

ID=63107572

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2018/004418 Ceased WO2018147374A1 (fr) 2017-02-09 2018-02-08 Structure gonflable

Country Status (1)

Country Link
WO (1) WO2018147374A1 (fr)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5267166U (fr) * 1975-11-14 1977-05-18
JP2001514146A (ja) * 1997-09-01 2001-09-11 エム．エフ．シー．サバイバル リミテッド リフティングクッション
JP6017103B1 (ja) * 2014-12-18 2016-10-26 株式会社横井製作所 薄型エアージャッキ

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5267166U (fr) * 1975-11-14 1977-05-18
JP2001514146A (ja) * 1997-09-01 2001-09-11 エム．エフ．シー．サバイバル リミテッド リフティングクッション
JP6017103B1 (ja) * 2014-12-18 2016-10-26 株式会社横井製作所 薄型エアージャッキ

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