WO2005117659A1 - Structure pneumatique - Google Patents

Structure pneumatique Download PDF

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Publication number
WO2005117659A1
WO2005117659A1 PCT/CH2005/000282 CH2005000282W WO2005117659A1 WO 2005117659 A1 WO2005117659 A1 WO 2005117659A1 CH 2005000282 W CH2005000282 W CH 2005000282W WO 2005117659 A1 WO2005117659 A1 WO 2005117659A1
Authority
WO
WIPO (PCT)
Prior art keywords
cells
pneumatic structure
pneumatic
layers
membrane
Prior art date
Application number
PCT/CH2005/000282
Other languages
German (de)
English (en)
Inventor
Res Kammer
Laszlo Kerekes
Fritz Fuchs
Original Assignee
Prospective Concepts Ag
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 Prospective Concepts Ag filed Critical Prospective Concepts Ag
Priority to EP05737519A priority Critical patent/EP1750554B1/fr
Priority to DE502005003341T priority patent/DE502005003341D1/de
Priority to US11/628,121 priority patent/US20070256245A1/en
Publication of WO2005117659A1 publication Critical patent/WO2005117659A1/fr

Links

Classifications

    • 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

  • the present invention relates to a pneumatic structure, for example for use as a seat, recliner and backrest cushion according to the preamble of claim 1.
  • Pneumatic seat and backrest cushions are known per se. They usually consist of a large number of communicating air hoses arranged side by side, which can be ventilated and vented via a common valve, and thus have the same structure and shape as the known air mattress.
  • a certain adaptation possibility is to bring individual hoses to different air pressures or to use different hose diameters, whereby the shape and softness can be varied to a limited extent.
  • pillows are additionally provided with a textile cover.
  • the basic structure of the hoses remains visible - and essential for a pillow - as well.
  • a pneumatic seat cushion is disclosed in WO 94/07396.
  • the object of the present invention is to create a pneumatic structure, in particular for seat, reclining and backrest cushions, which enables good formability, is capable of meeting high demands in the area of seating comfort, can bring about noticeable weight savings compared to conventional foam cushions and which is good can be combined with rigid structures.
  • the structure should not become rigid or hard, despite the great freedom in the design options of its shape, as is usually the case when using many shape-giving webs.
  • FIG. 2 shows a schematic illustration of a second exemplary embodiment in cross section
  • FIG. 3 shows a schematic illustration of a third exemplary embodiment in cross section
  • FIG. 4 shows a schematic illustration of a fourth exemplary embodiment in cross section
  • FIG. 5 shows a schematic representation of a fifth exemplary embodiment in cross section
  • FIG. 7 shows a schematic representation of a seventh exemplary embodiment in cross section
  • FIG. 8 shows a schematic illustration of an eighth exemplary embodiment in cross section.
  • FIG. 1 a is a schematic illustration of a first exemplary embodiment of a pneumatic structure 1 according to the invention in cross section.
  • the pneumatic structure 1 consists of at least two layers 3 of gas-filled cells 2 arranged in a row.
  • the cells 2 are, for example, tubular.
  • the structure 1 is made of a flexible gas-tight membrane 5.
  • This membrane 5 preferably consists of a suitable plastic film.
  • the cells 2 can be produced, for example, by welding or gluing elastic PU films.
  • the cells are 2 Connected to the neighboring cells 2 over part of their circumference and thus form parts of transverse webs 7 and longitudinal webs 8.
  • a cell 2 not located on the edge of a layer 3 in the interior of the structure 1 thus has at least three adjacent cells 2, namely the two neighboring cells 2 of the same layer 3 on the left and right, and one or more adjacent cells 2 one above and / or underlying layer 3 '.
  • Communicating cells 2, which are under the same pressure - meaning here as well as in the following an overpressure with regard to the atmospheric ambient pressure form one or more groups 12 of cells 2 and each have at least one valve 4, which acts on the individual cell 2 or a composite 12 of cells 2 with a compressed gas is used.
  • FIG. 1b shows the first exemplary embodiment in longitudinal section AA '.
  • the cells 2 are not individually welded at their two ends, but each layer 3 is gas-tightly connected over its entire width to an edge membrane 9 which closes the layer 3, whereby this edge membrane 9 can also be formed by a part of the membrane 5. Through the openings thus created at the ends of the cells 2, pressure compensation between the cells 2 over the entire layer 3 is possible.
  • the multi-layer body formed by the layers 3 of cells 2, is in turn surrounded by an all-closing envelope 10, consisting of a flexible elastic membrane.
  • the lines of contact 11 of the cells 2 which are curved outwards and run in the longitudinal direction of the structure 1 can be covered with the envelope 10 over their full length or partially. se non-positively connected, for example welded or glued.
  • the touch line 11 will always be a touch area.
  • the line of contact 11 preferably runs essentially along the longitudinal axis of symmetry of this contact surface. If the sheath 10 is additionally prestressed, this leads to a smooth surface of the pneumatic structure 1, without the tube-like cells 2 emerging as beads underneath.
  • the combination of several layers 3, 3 'of cells 2 enables a considerably better shape control of the pneumatic structure 1 than if the structure 1 has cells 2 which are continuous over their entire height.
  • the tension in the membrane 5 of the cells 2 is reduced with the same pressure being applied.
  • This enables a smooth cover 10, which is connected to the cells 2 at points or along the contact line 11, to provide a smooth surface uniform surface and shape of the pneumatic structure 1.
  • the structure 1 is softer by several smaller cells 2 than when only a few larger cells 2 are present.
  • the prestressing of the casing 10 can be achieved by selecting the distance 11-11 'between two contact lines 11 such that it is, for example, 1-20% smaller in the unpressurized state than in the pressurized state.
  • sleeve 10 is stretched and stretched between the contact lines 11, 11 'when the cells 2 are pressurized.
  • Structure 1 for example when used as a seat or recliner cushion, enables great shape retention and formability with high comfort and great softness. This means that structure 1 does not have to be inflated to hardness in order to assume and maintain its desired shape.
  • a three-layer pneumatic structure 1 is shown schematically in cross section as a second embodiment. It is according to the invention to combine three or more layers 3 of cells 2.
  • the cells 2 of a layer 3 are connected to one another by channels or openings in the common transverse and longitudinal webs 7, 8 and have the same pressure.
  • FIG. 3 shows a third exemplary embodiment with three layers 3 of cells 2 again, but the layer 3 ′ does not extend over the entire width of the structure 1.
  • this structure 1 has the same gas pressure in all cells 2.
  • a single valve 4 is sufficient to apply compressed gas to the cells 2 that communicate with one another.
  • Fig. 4 shows a fourth embodiment. This is a variant of the first embodiment.
  • the crossbars 7 of the first layer 3 are not directly connected to the crossbars 7 of the second layer 3 '.
  • FIG. 5 shows a fifth exemplary embodiment of an inventive Pneumatic structure 1 according to the invention, which has three different pressure regimes with the pressures pl, p2, p3.
  • the groups 12 of communicating cells 2 with the same pressure are connected to one another by means of openings or channels 13 in the transverse webs 7 and longitudinal webs 8.
  • Means are present for pressurizing the composites 12, such as compressors, pressure sensors, electronic controls, valves, pressure lines. Such means are known to the person skilled in the art and are therefore not explained in more detail.
  • the Fig. ⁇ a, b show a sixth embodiment.
  • the schematic cross section in FIG. 6a shows the cells 2 of this example which are sealed off gastight from one another.
  • Each individual cell 2 has at least one separate valve 4 and can be pressurized independently of other cells 2.
  • the longitudinal section BB 'in FIG. 6b clearly reveals that the transverse webs 7 in this exemplary embodiment do not leave any opening free at the ends of the tubular cells 2.
  • the edge membrane 9 closes off each cell 2 individually, and therefore gas exchange between the cells 2 within a layer 3 is not possible.
  • 7 shows a seventh exemplary embodiment with an irregular asymmetrical arrangement and size of the cells 2. With a variation in shape, size, arrangement and number of cells 2 the specialist can manufacture pneumatic structures of various shapes and hardness.
  • FIG. 8 shows an eighth exemplary embodiment.
  • the sheath 10, the membrane 5, the transverse webs 7 and the longitudinal webs 8 are provided with fluid muscles 14 at some points.
  • FIG. 8 shows an example of possible arrangements, combinations and placements of such shortenable fluid muscles 14.
  • the fluid muscles 14 are linear actuators which shorten the webs 7, 8 or more generally the membrane 5 of the cells 2 and the sheath 10 at some point and thus the shape of structure 1 can change.
  • the fluid muscle 14 consists, for example, of tubular, fluid-tight chambers, which are integrated into the membrane 5 or sheath 10 to be shortened. When these chambers are acted upon by a fluid - for example compressed air - which is under a greater pressure than the surrounding cells 2, the chambers take on an essentially round shape in cross section.
  • Fluid muscles 14 of this type and the means necessary for their operation, such as lines, compressors and controls, are known per se to the person skilled in the art. It is therefore not discussed in any more detail.
  • cell 2 ' is delimited by double-walled webs 7, 8.
  • a multilayer structure of the webs 7, 8 - for example by gluing or welding the membrane 5 - can be implemented in all of the above-mentioned exemplary embodiments.
  • the chamber of the fluid muscle 14 is formed by a membrane piece which is fastened in a fluid-tight manner at its edges to the web 7, 8 and by part of the web 7, 8 itself. It is contained in the inventive concept that the various features of the above-mentioned exemplary embodiments can be combined with one another as desired in order to arrive at further exemplary embodiments according to the invention.

Landscapes

  • Mattresses And Other Support Structures For Chairs And Beds (AREA)
  • Invalid Beds And Related Equipment (AREA)
  • Paper (AREA)
  • Diaphragms For Electromechanical Transducers (AREA)

Abstract

L'invention concerne une structure pneumatique qui offre une bonne plasticité et qui satisfait à des exigences élevées eu égard au confort d'assise. Contrairement aux structures monocouches généralement utilisées dans les matelas et les coussins pneumatiques, la structure pneumatique selon l'invention est constituée d'au moins deux couches (3) de cellules tubulaires (2) organisées en rangées et remplies de gaz. La structure (1) est réalisée dans une membrane souple extensible (5) étanche aux gaz, qui est de préférence constituée d'un film plastique approprié. Les cellules (2) sont reliées sur une partie de leur périphérie avec les cellules voisines et forment ainsi des parties de nervures transversales (7) et de nervures longitudinales (8). Des cellules communicantes (2) soumises à la même pression forment une ou plusieurs combinaisons de cellules (2) et présentent respectivement au moins une soupape (4) servant à mettre sous pression la cellule individuelle (2) ou une combinaison de cellules (2) au moyen d'un gaz comprimé. Selon un premier mode de réalisation de l'invention, quatre cellules (2) sont respectivement en contact le long d'une ligne (6) s'étendant en sens longitudinal.
PCT/CH2005/000282 2004-06-04 2005-05-19 Structure pneumatique WO2005117659A1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
EP05737519A EP1750554B1 (fr) 2004-06-04 2005-05-19 Structure pneumatique
DE502005003341T DE502005003341D1 (de) 2004-06-04 2005-05-19 Pneumatische struktur
US11/628,121 US20070256245A1 (en) 2004-06-04 2005-05-19 Pneumatic Structure

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH962/04 2004-06-04
CH9622004 2004-06-04

Publications (1)

Publication Number Publication Date
WO2005117659A1 true WO2005117659A1 (fr) 2005-12-15

Family

ID=34966597

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CH2005/000282 WO2005117659A1 (fr) 2004-06-04 2005-05-19 Structure pneumatique

Country Status (5)

Country Link
US (1) US20070256245A1 (fr)
EP (1) EP1750554B1 (fr)
AT (1) ATE389341T1 (fr)
DE (1) DE502005003341D1 (fr)
WO (1) WO2005117659A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20190184883A1 (en) * 2017-12-19 2019-06-20 Jing Zhong Leg Rest Device

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7025576B2 (en) 2001-03-30 2006-04-11 Chaffee Robert B Pump with axial conduit
DE60211696T2 (de) * 2001-07-10 2007-05-16 Robert B. Boston Chaffee Konfigurierbare aufblasbare unterstützvorrichtung
JP2005524805A (ja) 2002-05-03 2005-08-18 チャフィー，ロバート，ビー． バルブを作動させるための電気機械デバイスを備えたセルフシールバルブ
CA2506385C (fr) 2002-11-18 2012-03-13 Robert B. Chaffee Dispositif gonflable
US20080271251A1 (en) * 2004-06-04 2008-11-06 Prospective Concepts Ag Pneumatic Cushion for Sitting, Leaning or Lying Upon
US7334279B2 (en) * 2005-11-09 2008-02-26 Oprandi Arthur V Mattress pad
GB201017183D0 (en) * 2010-10-12 2010-11-24 Katan Joseph M Body support platform

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2542589A1 (fr) * 1982-12-20 1984-09-21 Dejoux Andre Structures souples comportant plusieurs volumes gonfles a des pressions differentes pour la realisation d'elements de mobilier
WO1994007396A1 (fr) 1992-09-29 1994-04-14 Pegasus Airwave Limited Coussin

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2542589A1 (fr) * 1982-12-20 1984-09-21 Dejoux Andre Structures souples comportant plusieurs volumes gonfles a des pressions differentes pour la realisation d'elements de mobilier
WO1994007396A1 (fr) 1992-09-29 1994-04-14 Pegasus Airwave Limited Coussin

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20190184883A1 (en) * 2017-12-19 2019-06-20 Jing Zhong Leg Rest Device

Also Published As

Publication number Publication date
EP1750554B1 (fr) 2008-03-19
ATE389341T1 (de) 2008-04-15
US20070256245A1 (en) 2007-11-08
DE502005003341D1 (de) 2008-04-30
EP1750554A1 (fr) 2007-02-14

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