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WO1997008976A1 - Procede de production d'un article gonflable et article gonflable obtenu selon ce procede - Google Patents

Procede de production d'un article gonflable et article gonflable obtenu selon ce procede Download PDF

Info

Publication number
WO1997008976A1
WO1997008976A1 PCT/SE1996/001058 SE9601058W WO9708976A1 WO 1997008976 A1 WO1997008976 A1 WO 1997008976A1 SE 9601058 W SE9601058 W SE 9601058W WO 9708976 A1 WO9708976 A1 WO 9708976A1
Authority
WO
WIPO (PCT)
Prior art keywords
produced
opening
furniture
piece
copolymer
Prior art date
Application number
PCT/SE1996/001058
Other languages
English (en)
Inventor
Jan Dranger
Original Assignee
Jan Dranger
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 Jan Dranger filed Critical Jan Dranger
Priority to AU69484/96A priority Critical patent/AU6948496A/en
Priority to JP9511117A priority patent/JPH11513259A/ja
Priority to EP96930459A priority patent/EP0957725A1/fr
Publication of WO1997008976A1 publication Critical patent/WO1997008976A1/fr

Links

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
    • A47C27/10—Fluid mattresses with two or more independently-fillable chambers
    • 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
    • A47C27/081—Fluid mattresses of pneumatic type
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47C—CHAIRS; SOFAS; BEDS
    • A47C4/00—Foldable, collapsible or dismountable chairs
    • A47C4/54—Inflatable chairs

Definitions

  • This invention concerns a method of manufacturing an inflatable element according to the preamble of claim 1 and an inflatable element according to the preamble of claim 10.
  • Upholstery including beds comprise about 40% of the total furniture production for the home market . While the remaining furniture production has undergone radical change into highly industrialized production during the last three decades, manufacture of upholstery is still directed to handicraft.
  • a further problem with upholstery is the substantial weight and volume of the products which makes storage and transport costly and energy consuming.
  • Furniture items with pneumatic support structures are well known. Such furniture items are advantageous, since they are transportable in a compressed state which facilitates export as well as distribution via mail order. Further features are low weight and low price.
  • SE-B-368 502 describes a body support device with so called spare elements which are intended to be inflated with air or the like before their insertion into a shape defining cover.
  • the elements are intended to be manufactured through seam welding of polyvinyl chloride.
  • SE-B-426 545 describes a piece of furniture with a cover which is filled with balloon like bodies.
  • the resulting element is given very good properties with respect to producibility and softness, and these properties are enhanced when EMA is present at 17-40% or more preferred at 20- 30% or most preferred at 24-26% with polyethylene or most preferred LDPE as the main constituent.
  • Adding peroxide to the starting material is advantageous because on the one hand manufacture technical effects and on the other hand, which is very important for a piece of furni ⁇ ture, essential reduction of "the smell of plastic".
  • slip agent By adding a slip agent to the material a great number of advantages are achieved related to the elements being given a comfortable low friction surface and noise production within the material itself and between adjacent element being essen ⁇ tially reduced. It has also been found that adding a slip agent essentially simplifies introduction of inflated elements into a cover, since the slip agent reduces the friction between adjacent elements and between the elements and the cover. This considerably simplifies and reduces time of the introduction. Slip agents that have been found effective are, as examples, erucamide and oleamide. Slip agent is preferably added at from about 1% for so called low slip to slightly above about 3.2% for so called high slip.
  • a very advantageous aspect of the invention is achieved by the feature according to claim 17.
  • the total air volume of a sofa is typically around 600-1000 1 which when using a conventional inflation technique for the homes result in an almost insurmountable inflation time.
  • sealing means such as repair patches or clots of contact glue or the like from the inside at a damaged area so as to repair a hole in the wall element.
  • a further essential aspect of the dimension of the opening is the possibility when manufacturing to quickly empty the finished element from air for further packeting.
  • hair dryer is intended hand held devices, normally with pistol grip, with or without the provision for switching of the heating element. Such devices are common in the homes and normally have an output nozzle diameter between about 40 and 60 mm. An inner diameter of the opening between about 30 and 55 mm therefore allows the element to be conveniently inflated directly using the hair dryer. Using an intermediate element, preferably simply having the shape of an elongated funnel, between a hair dryer and the opening allows inflation of the element when the inner dimension of the opening diverge to much. It should be observed that a circular opening is pre ⁇ ferred but that other shapes, e.g. somewhat angular, are not excluded.
  • the invention also concerns a piece of furniture including a support structure including element according to the above.
  • the furniture item includes a cover enclosing the support structure, it is advantageous that the cover is adapted in such a way that the elements only have to be inflated to between about 75 - 90%, which considerable enhances the comfort of the piece of furniture in comparison to previously known furniture items having pneumatic support structures, where it has been the question of inflating the support elements to a maximum.
  • Fig. 1 shows a support structure consisting of elements accor ⁇ ding to the invention for a piece of furniture
  • Fig. 2 shows an element according to the invention in a per ⁇ spective view
  • Fig. 3 shows, partly in a section, the element according to Fig. 2 in a side view
  • Fig. 4 shows an element according to the invention in an empty state
  • Fig. 5 shows a different design of an element according to the invention
  • Fig. 6 shows the opening area of an element according to the invention
  • Fig. 6a shows the detail in Fig. 6 in a separated state and in a larger scale
  • Fig. 7 shows the opening area of an other element according to the invention in a sectional view
  • Fig. 8a-f show a support structure of a sofa and the process of placing said support structure in a shape determining cover
  • Fig. 9 shows a different embodiment of the element according to the invention.
  • Fig. 10 shows a detail of the element of Fig. 9 in a larger scale
  • Fig. 11 shows another embodiment of the opening area in an element according to the invention
  • Fig. 12 shows a further embodiment of an element
  • Fig. 13 and 13A show diagrammatically a support structure for a variety of applications.
  • the support structure shown in Fig. 1 is intended for sofa, a bed or the like and consist of four inflatable elements 1 which are manufactured by heat seam welding of two sheet portions, each in the finished element mainly having a U-shaped section, said sections being intended to be looked upon at an angle of 90° with respect to each other.
  • Fig. 2 where the upper sheet portion has an extension along the arrow A-A and the lower sheet portion has the extension along the arrow B-B.
  • Meeting edges of the sheet portions are heat sealed welded in a conventional manner with regard to parame ⁇ ters as clamping pressure and temperature. It is possible to conduct welding using different known methods as contact heat, ultrasonic heat etc.
  • the element shown in Fig. 1 and 2 thus includes a continuous seam 11.
  • the element is provided with an opening portion 10 which will be described in detail below.
  • Fig. 3 shows the element according to Fig. 2, partly in sec ⁇ tion, showing the opening portion 10 which is depressed in such a way that an applied lid 3 is inside or generally in level with the surrounding wall portion of the element.
  • Fig. 4 shows the element 1 in a collapsed state with radically reduced volume which is the case in distribution etc of a piece of furniture based on this invention.
  • Fig. 5 shows a different embodiment of the inflatable element whereby the upper side 12 and the lower side 12 ' as much as possible have been made free from seams.
  • the seams are present only at the parallel side edges and in central portions of the sideward directed sides. Hereby the stiffening influence from the seams to the comfort of a resulting piece of furniture may be reduced.
  • Fig. 6 and 6a show the opening portion 10 of the elements with the indicated seam 11'.
  • the lid 3 may be fixed in the opening in the opening portion 10 by for example screw thread, or as is shown in Fig. 7, by depressing lid 3' which comprises a some ⁇ what larger diameter than the opening of the opening portion 10.
  • the opening is defined by a tube shaped neck portion 13 which is an excellent tightening seat for the lid 3'.
  • the tube shaped neck portion is slightly conical inwardly while the lid 3' is provided with the corresponding design.
  • Fig. 8a and 8b show in detail the support structure of a sofa according to the invention with seat elements 1', arm support elements 2' and back support elements 5'.
  • Fig. 8c-8f show the process of finishing a seating furniture item according to the invention whereby 14 ' indicates a finished complete shape determining cover and 20 an optional insertion sheet of polyethylene, batting or the like as a levelling layer.
  • the seat elements 1' are inserted according to Fig. 8b in their inflated state from below into the cover which is thereafter closed. Further, the arm support elements 2' are inserted in their respective pockets and finally the back support elements 5' are inserted as is illustrated in Fig. 8f. It should be noted that insertion is much simplified if the elements are manufactured from a material including a slip agent, since otherwise the insertion of the elements may be considered troublesome.
  • Fig. 9 shows a further embodiment of the invention, from which and also from Fig. 10 it is shown that the opening 21 in this case is located in a seam area of the element 1.
  • the portion surrounding the opening 21 is of course possible to seam weld to the sheet material of the wall 20 of the element.
  • the element is closed with a lid device 22, 23 which consists of first lid 22 having an outer diameter corresponding to a hole 21 allowing inflation with a hair dryer, and an inner diameter of a centrally located inner through hole which is designed for final inflation with the aid of particular pump, with the mouth or the like.
  • This inner hole is thereafter sealed with the inner lid 23.
  • Both lid 22 and 23 are provided with sealing flanges which engage the surrounding material.
  • This lid construction is particularly useful when the elements are to be given a higher pressure than what is nor ⁇ mally intended, e.g. in certain particularly high loaded elements.
  • Fig. 11 shows a different embodiment of the opening portion 10'' having the tube shaped neck portion 13 adapted for co ⁇ operation with a particularly shaped lid 3'', which in its lower portion is provided with a locking flange 24 for the cooperation with the inward surface of the neck portion 13.
  • the sealing between the lid and the neck portion is achieved in the above mentioned manner, but it is also possible to provide the lid 3 ' ' with outward sharp surrounding tightening flanges on the part having reduced diameter. Said flange or flanges exerting tightening cooperation with the inner envelope surface of the neck tube 13.
  • Fig. 12 shows a variant of the element according to the inven ⁇ tion whereby a sheet is used which is directly manufactured in tube shape, normally as an "endless" tube. Hereby only two end walls are welded 11 against a sheet tube portion for forming the element 1.
  • the welded seams 11 such, as is e.g. shown on Fig. 2 and 12, the great advantage is achieved that crossing seams are avoided.
  • Places having crossing weld seams (T-crosses as well as X-crosses) are particularly sensitive places as to leakage.
  • Fig. 13 and 13A show diagrammatically an alternative support structure built from three elements 1 according to the inven ⁇ tion which may be linked together in meeting welding seams lla or separate, and in that case they are manufactured according to the above principles.
  • the elements are in this case con ⁇ structed more plate-like and may therefore be used "folded together" as an easy chair or levelled as a mattress.
  • the invention is not limited to the container like elements which are shown in the Figures but all kinds of inflatable elements within the definition of the claims are within the scope of the invention, e.g. also air mattress type elements which are intended to be used in a levelled as well as e.g. in differently folded position, in principle as has been described in connection with Fig. 13 and 13A above. Also irregularly shaped elements are possible and are intended with the inven ⁇ tion.

Landscapes

  • Lining Or Joining Of Plastics Or The Like (AREA)
  • Mattresses And Other Support Structures For Chairs And Beds (AREA)

Abstract

Cette invention concerne un procédé de fabrication d'un article gonflable (1) servant de structure de support, ou de partie d'une structure de support, dans un meuble servant à s'asseoir ou à s'allonger, ou encore dans une partie d'un tel meuble. Cet article (1) est obtenu par le soudage thermique continue (11) d'une ou de plusieurs feuilles d'un matériau plastique fin, ce soudage permettant de former un contenant pouvant être fermé et ledit article comportant une ouverture pouvant être fermée. Cet article est fabriqué à partir d'un matériau lisse et souple se composant d'un copolymère de polyoléfines, l'ouverture pouvant être fermée se trouvant dans un élément d'ouverture (10) produit séparément et soudé à chaud de manière continue (11') sur une partie de la paroi dudit article à paroi fine. Cette invention concerne également un article produit d'après ce procédé, ainsi qu'un meuble contenant de tels articles.
PCT/SE1996/001058 1995-09-08 1996-08-28 Procede de production d'un article gonflable et article gonflable obtenu selon ce procede WO1997008976A1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
AU69484/96A AU6948496A (en) 1995-09-08 1996-08-28 Method of producing an inflatable element and an inflatable element
JP9511117A JPH11513259A (ja) 1995-09-08 1996-08-28 膨らまし得る袋状要素体の製造方法および袋状要素体
EP96930459A EP0957725A1 (fr) 1995-09-08 1996-08-28 Procede de production d'un article gonflable et article gonflable obtenu selon ce procede

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE9503106A SE504937C2 (sv) 1995-09-08 1995-09-08 Förfarande för framställning av ett uppblåsbart element jämte ett uppblåsbart element
SE9503106-8 1995-09-08

Publications (1)

Publication Number Publication Date
WO1997008976A1 true WO1997008976A1 (fr) 1997-03-13

Family

ID=20399414

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/SE1996/001058 WO1997008976A1 (fr) 1995-09-08 1996-08-28 Procede de production d'un article gonflable et article gonflable obtenu selon ce procede

Country Status (6)

Country Link
EP (1) EP0957725A1 (fr)
JP (1) JPH11513259A (fr)
CN (1) CN1195974A (fr)
AU (1) AU6948496A (fr)
SE (1) SE504937C2 (fr)
WO (1) WO1997008976A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2001002158A1 (fr) * 1999-06-16 2001-01-11 Bor Plast Ab Fabrication d'un produit en plastique
EP3239438A1 (fr) * 2016-04-28 2017-11-01 Bestway Inflatables & Material Corp. Dispositif gonflable pour thermale portable

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU2009350434B2 (en) * 2009-07-29 2014-11-27 Technogel Italia S.R.L. Modular support element

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1381952A (en) * 1971-04-08 1975-01-29 Dranger J Furniture unit for support of the body
GB1470838A (en) * 1973-10-19 1977-04-21 Stilgamma Int Establishment Furniture
SE426545B (sv) * 1981-03-30 1983-01-31 Jan Dranges Kroppsstodjande anordning i form av mobel eller liknande och forfarande for framstellning av densamma
US4467484A (en) * 1981-02-19 1984-08-28 Nissan Motor Company, Limited Pneumatic cushion and manufacturing method therefor
EP0644236A1 (fr) * 1992-03-13 1995-03-22 Socaplast Sa Mélange de résine à base de polyoléfine et de copolymères d'éthylène et d'acétate de vinyl et/ou d'éthylène-ester acrylique, susceptible d'être extrudé en film et soudé par des courants à haute fréquence
WO1996002168A1 (fr) * 1994-07-18 1996-02-01 Jan Dranger Elements pour meubles, meubles les incluant et leur procede de fabrication

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1381952A (en) * 1971-04-08 1975-01-29 Dranger J Furniture unit for support of the body
GB1470838A (en) * 1973-10-19 1977-04-21 Stilgamma Int Establishment Furniture
US4467484A (en) * 1981-02-19 1984-08-28 Nissan Motor Company, Limited Pneumatic cushion and manufacturing method therefor
SE426545B (sv) * 1981-03-30 1983-01-31 Jan Dranges Kroppsstodjande anordning i form av mobel eller liknande och forfarande for framstellning av densamma
EP0644236A1 (fr) * 1992-03-13 1995-03-22 Socaplast Sa Mélange de résine à base de polyoléfine et de copolymères d'éthylène et d'acétate de vinyl et/ou d'éthylène-ester acrylique, susceptible d'être extrudé en film et soudé par des courants à haute fréquence
WO1996002168A1 (fr) * 1994-07-18 1996-02-01 Jan Dranger Elements pour meubles, meubles les incluant et leur procede de fabrication

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2001002158A1 (fr) * 1999-06-16 2001-01-11 Bor Plast Ab Fabrication d'un produit en plastique
EP3239438A1 (fr) * 2016-04-28 2017-11-01 Bestway Inflatables & Material Corp. Dispositif gonflable pour thermale portable

Also Published As

Publication number Publication date
SE9503106L (sv) 1997-03-09
AU6948496A (en) 1997-03-27
EP0957725A1 (fr) 1999-11-24
CN1195974A (zh) 1998-10-14
SE504937C2 (sv) 1997-06-02
SE9503106D0 (sv) 1995-09-08
JPH11513259A (ja) 1999-11-16

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