EP2210528A2 - Siège de travail doté de surfaces d'appui rembourrées en air - Google Patents

Siège de travail doté de surfaces d'appui rembourrées en air Download PDF

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Publication number
EP2210528A2
EP2210528A2 EP10000665A EP10000665A EP2210528A2 EP 2210528 A2 EP2210528 A2 EP 2210528A2 EP 10000665 A EP10000665 A EP 10000665A EP 10000665 A EP10000665 A EP 10000665A EP 2210528 A2 EP2210528 A2 EP 2210528A2
Authority
EP
European Patent Office
Prior art keywords
air cushion
work chair
slot
air
region
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.)
Granted
Application number
EP10000665A
Other languages
German (de)
English (en)
Other versions
EP2210528B1 (fr
EP2210528A3 (fr
Inventor
Jörg Bernauer
Josef Navratil
Erwin Klöck
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.)
Kloeber GmbH and Co
Original Assignee
Kloeber GmbH and Co
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 Kloeber GmbH and Co filed Critical Kloeber GmbH and Co
Priority to EP11003764A priority Critical patent/EP2345344B1/fr
Publication of EP2210528A2 publication Critical patent/EP2210528A2/fr
Publication of EP2210528A3 publication Critical patent/EP2210528A3/fr
Application granted granted Critical
Publication of EP2210528B1 publication Critical patent/EP2210528B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • A47C4/00—Foldable, collapsible or dismountable chairs
    • A47C4/54—Inflatable chairs
    • 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
    • A47C27/084—Fluid mattresses of pneumatic type self inflating
    • 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
    • A47C27/088—Fluid mattresses incorporating elastic bodies, e.g. foam
    • 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
    • A47C27/14—Spring, stuffed or fluid mattresses or cushions specially adapted for chairs, beds or sofas with foamed material inlays
    • A47C27/18—Spring, stuffed or fluid mattresses or cushions specially adapted for chairs, beds or sofas with foamed material inlays in combination with inflatable bodies
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47C—CHAIRS; SOFAS; BEDS
    • A47C7/00—Parts, details, or accessories of chairs or stools
    • A47C7/02—Seat parts
    • A47C7/14—Seat parts of adjustable shape; elastically mounted ; adaptable to a user contour or ergonomic seating positions
    • A47C7/142—Seat parts of adjustable shape; elastically mounted ; adaptable to a user contour or ergonomic seating positions by fluid means
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47C—CHAIRS; SOFAS; BEDS
    • A47C7/00—Parts, details, or accessories of chairs or stools
    • A47C7/02—Seat parts
    • A47C7/18—Seat parts having foamed material included in cushioning part
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47C—CHAIRS; SOFAS; BEDS
    • A47C7/00—Parts, details, or accessories of chairs or stools
    • A47C7/36—Supports for the head or the back
    • A47C7/40—Supports for the head or the back for the back
    • A47C7/46—Supports for the head or the back for the back with special, e.g. adjustable, lumbar region support profile; "Ackerblom" profile chairs
    • A47C7/467—Supports for the head or the back for the back with special, e.g. adjustable, lumbar region support profile; "Ackerblom" profile chairs adjustable by fluid means

Definitions

  • the invention relates to a work chair with air-cushioned support surfaces according to the preamble of patent claim 1.
  • Such a work chair is, for example, with the subject of DE 198 27 683 C1 known.
  • a self-inflating air cushion is arranged in the backrest part of a work chair, which is divided into two separate sections.
  • the upper portion which faces the back, has no self-inflating function
  • the lower portion which is located in the lordosis and iliac crest region of the human body, has a valve-controllable, self-inflating function.
  • a valve-controllable, self-inflating function By this is meant that at rest, the inflatable cushion is fully filled with air.
  • the inflatable back element always has the same hardness, regardless of whether the user pushes his back now obliquely into the seat or moves his back down more on the seat and occupies a different sitting position.
  • no dynamic sitting with a simultaneous support of the back in the lumbar and iliac crest region depending on the sitting position of the user is possible.
  • a cushion arrangement consisting of a plurality of inflatable pads, wherein the pads are arranged both in the back region and in the lumbar region and additionally in the seating area more pads are arranged.
  • the said pads can be inflated separately by an air pump and their degree of filling can be adjusted by a respective valve associated with the pad.
  • the air chambers arranged in the back region and in the lordosis region are connected to one another in an air-tight manner and are connected via a hose arrangement which is provided with a controllable valve.
  • the basic principle of this air cushion system is therefore that with a pump separate air cushions are inflated and the degree of filling of the individual air cushion is maintained. Due to the arrangement of the connecting hoses, the system is sluggish, because only a sluggish system is possible through the individual connecting hoses, whose total length adds up to a length of 2 meters. In addition, due to the thin connecting hoses, flow noise is to be feared. A dynamic sitting, d. H. an air distribution in the backrest depending on the seat and upper body position of the user is not provided in this system.
  • the invention is therefore based on the DE 198 27 683 C1 the task of forming a work chair of the aforementioned type so that a dynamic sitting position of the user in the work chair (based on the backrest and the seat) directly to a change in the Inflation condition depending on the sitting position of the user on the work chair leads.
  • the invention is characterized by the technical teaching of claim 1.
  • An essential feature of the invention is that in the backrest region of the work chair at least one filled with foam air cushion is arranged, which has a lockable volume of air and that the air cushion has at least one vertical slot whose slot end extends into the lumbar region and the slot opening is arranged in the iliac crest region.
  • At least one foam-filled air cushion is arranged in the seating area of the work chair whose slot end extends approximately over half the seat depth of the seat and the slot opening in the rear area approximately in the region of the ischial tuberosity of the user.
  • the ischial tuberosities of the user are in this case in the rear region of the seat surface resting on the seat and should be supported. Accordingly, according to the present technical teaching, it is found that the work chair claims two different, independently operating, foam-filled air cushions, the invention not being dependent on the combination of a foam-filled air cushion in the backrest in conjunction with a foam-filled air cushion in the seat.
  • the present invention also describes the possibility of having multiple inflatable air cushions in the seat back or one or more inflatable air cushions in the seat surface. Not to the following description To make it too complicated, it is assumed in the following description that in the backrest only a single self-inflatable air cushion is arranged, as well as in the seat.
  • the invention is - as stated - not limited to the arrangement of an air cushion in the backrest and an air cushion in the seat.
  • the air cushion in the backrest is filled with foam.
  • This feature has the advantage that can be largely dispensed with on the surrounding foam in which this air cushion is embedded, d. H. it is a relatively thin foam layer of a backrest foam, which is directed against the user's back, used because the inflatable air cushion according to the invention itself carries a foam layer.
  • the invention also relates to two different embodiments for the inflatability of the air bag.
  • the air cushion itself is inflatable.
  • Such a self-inflatable cushion is for example in the DE 198 27 683 C1 described.
  • an open-cell foam is arranged, which has such a compressive capacity that the foam always absorbs a certain amount of air in the expanded state of rest.
  • a valve is provided which is opened to release a certain amount of air from the air bag and the open foam pores in the air bag.
  • the air cushion is not filled with a self-inflatable foam, but works only with a (closed-cell or open-cellular) foam and with an attached air pump. By operating the pump thus the degree of filling of air in the air cushion can be more or less influenced.
  • a vertical slot (that is, a longitudinal extension in the vertical direction) is arranged in the lower region of the airbag and the airbag extends in the backrest approximately from the shoulder region downwards into the iliac crest region.
  • the plane of the vertical slot is approximately parallel to the plane of the back shell.
  • the vertical slot extends approximately from the middle of the lumbar region (where the slit end extends horizontally about the entire width of the back) down to the iliac crest region where the expandable slit opening is located.
  • the air cushion in the lower area d. H. formed spreadable in the lumbar region and in the iliac crest region.
  • D. h. It consists of at least two opposing wing-like expansion parts, which are separated by the vertical slot from each other and support each other in the inflation of the air cushion from each other and thus spread.
  • the air cushion allows a backrest shape adapted to the individual back contour. This mode of operation allows, in principle, a quasi-automatic adaptation to the altitude and protrusion depth of the individual spine contour, without the need for mechanical adjustment mechanisms for backrest contouring.
  • the backrest surface is that their hardness can be adjusted individually using the air cushion - an aspect that is also at least to adapt to the subjective sense of comfort after softer or harder upholstery of interest.
  • the effect of the air cushion is comparable to that of a seat wedge - thus requiring an intensification of the Weg lakevorneist coupled with increased support in the rear pelvic area. Both of these effects are to be considered positive insofar as this counteracts an unwanted total laryngeal laryngeal affection.
  • the air cushion enables increased movement possibilities on the seat surface in the lateral direction, which are to be regarded positively under the aspect of "seat dynamics".
  • the hardness of the seat cushion can be adjusted individually. This is important for adapting to individual physical conditions (avoidance of "sitting through") as well as for adapting to the subjective sense of comfort - ie the desire for softer or harder upholstery.
  • the support force in the lumbar and iliac crest area is thus dependent on the force with which the user presses with his upper back on the self-inflatable air cushion.
  • the support force and the spreading force of the seat cushion arranged there are dependent on the extent to which the user shifts his weight on the seat forward or backward.
  • the seat cushion When the pressure from the thigh becomes large, the seat cushion should inflate and spread in the region of the ischial tuberosity in order to support the ischial tuberosity ergonomically.
  • the particular advantage of the invention is that at least one continuous air cushion filling the backrest region of the backrest is arranged so that the air can flow from the upper part of the air cushion into the lower part of the air cushion in order to spread off the lower part.
  • the arrangement of at least one vertical slot thus provides the advantage that a large spreading effect is achieved with a relatively small displaced air volume. This is because the two wing-like expansion parts support each other and thus the spreading effect - compared to an unslit air cushion - increased (multiplied).
  • the present invention is not limited to the arrangement of a single vertical slot. It can also be several parallel juxtaposed vertical slots exist or it can There may also be lateral slots which divide the seat in the vertical direction.
  • the invention thus relates to the fact that the entire back contour of the user effectively by - a single, continuous air cushion is supported, so when pressure in the upper shoulder area on this air cushion, the air displaced there to achieve a spreading effect in the lordosis and pelvic area is used ,
  • the back cushion extends over the entire length of the back, so is the support effect regardless of the size of the user. Thus, not only certain areas are supported, as in the prior art, but a large area of the entire back shell of the work chair.
  • both the air cushion in the backrest area as well as the air cushion in the seating area is filled with air, there is an avoidance of slipping through there arranged in the surrounding area foam.
  • the air can not escape from the seat cushion due to the closed system, and a foam located in the surrounding area of the airbag could also be sloshed without adversely affecting the seating comfort. It can therefore be used thinner foam thicknesses and overall, thus lower production costs can be achieved.
  • FIG. 1 is a functional position shown in which a user does not lean on the work chair and the backrest shell 1 there.
  • the work chair consists essentially of the backrest shell 1 and the seat shell 7.
  • the self-inflatable air cushion 3 according to the invention is on the inside arranged in front of - in the direction of the back of the user a backrest foam 2 is arranged.
  • the seat cushion wherein the self-inflatable air cushion 9 according to the invention is arranged directly on the seat shell 7, which is covered at the top by a seat foam 8.
  • FIG. 3 The backrest foam 2 and the seat foam 8 also extend beyond the lateral boundaries of the respective air cushion 3, 9 arranged there.
  • At least one vertical slot in the air cushion 4 is arranged in the lower region of the air cushion 3 arranged on the back side.
  • the expansion part extends in the rear region of the seat cushion.
  • valve 5 the basic filling of the air bag 3 can be adjusted, which is preferably self-inflatable.
  • valve 6 which adjusts the basic filling of the air bag 9 in the seating area.
  • FIG. 3 shows that the lean-side air cushion 3 extends in its upper limit in the shoulder region 14 of the back and covers the lordosis region 15 and the iliac crest region 16.
  • the air cushion 3, 9 according to the invention has in each case one compression region 13 and two expansion parts 11, 12 separated from one another by at least one single slot 4, 10.
  • FIG. 4 Such a cushion 3, 9 is shown in the unexpanded state. It can be seen that it is surrounded by a sheath 20 which is closed by Ardsfalze 21 and is airtight.
  • FIG. 5 generates a force F1 on the air cushion 3, 9 in the compression region 13, then there is a spreading of the two expansion parts 11, 12 generated by mutual support in the region of the vertical slot 4, 10, as in FIG. 5 is shown.
  • the mutual distance 19 of the two expansion parts 11, 12 thus increases to the distance 19 '.
  • FIG. 6 shows again the operating principle of the present invention, where it can be seen that the force F1 in the compression region 13, 14 on the cushion 3, 9th In this case, it can be seen that the inflation of the reclining expansion part 12 does not lead to a spreading, because the force F2 is derived in the back shell 1 and is forwarded as a counterforce to the increased spreading to the back-side expansion part 11. Therefore, the Absp Son Fisch Koch the back-side expansion member 11 is substantially larger, because the spread is supported by the reclining side expansion member 12.
  • FIG. 7 shows a modified embodiment in which two mutually parallel vertical slots 4a, 4b are present. This results in a spread around the distance 19 ', so that this distance is double.
  • FIG. 8 shows a further modified embodiment, in which lateral slots are present, which are interconnected by a central connecting web 22.
  • FIG. 9 in contrast shows a central central slot 4, 10, so that only results in a central spreading.
  • the local expansion part will therefore bulge convexly, while the part after FIG. 8 concave bulges.
  • the slot length 23 of the slot 4, 10 is preferably selected so that the slot end 25 extends in the lean-side air cushion 3 to approximately in the lumbar region 15 or in the near thigh area at the seat-side air bag 9 ( Fig. 3 ).
  • the air cushions 3, 9 have a rectangular shape substantially in cross section. Accordingly, the mutually parallel and abutting expansion parts 11, 12 have such a rectangular shape.
  • the invention is not limited thereto.
  • the air cushion has in section an oval or another shape deviating from the rectangular profile. Accordingly, the expansion parts have an oval or another, adapted profile.
  • the air cushions 3, 9 have a rectangular shape in plan view. However, this is not to be understood as limiting the invention. It can be provided that the air cushion in plan view have a tapered shape. Likewise, other shapes are possible.

Landscapes

  • Mattresses And Other Support Structures For Chairs And Beds (AREA)
  • Chair Legs, Seat Parts, And Backrests (AREA)
EP10000665A 2009-01-27 2010-01-22 Siège de travail doté de surfaces d'appui rembourrées en air Not-in-force EP2210528B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP11003764A EP2345344B1 (fr) 2009-01-27 2010-01-22 Siège de travail doté de surfaces d'appui rembourrées en air

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102009006276A DE102009006276A1 (de) 2009-01-27 2009-01-27 Arbeitsstuhl mit luftgepolsterten Stützflächen

Related Child Applications (1)

Application Number Title Priority Date Filing Date
EP11003764.5 Division-Into 2011-05-07

Publications (3)

Publication Number Publication Date
EP2210528A2 true EP2210528A2 (fr) 2010-07-28
EP2210528A3 EP2210528A3 (fr) 2011-01-26
EP2210528B1 EP2210528B1 (fr) 2011-11-02

Family

ID=42133623

Family Applications (2)

Application Number Title Priority Date Filing Date
EP10000665A Not-in-force EP2210528B1 (fr) 2009-01-27 2010-01-22 Siège de travail doté de surfaces d'appui rembourrées en air
EP11003764A Not-in-force EP2345344B1 (fr) 2009-01-27 2010-01-22 Siège de travail doté de surfaces d'appui rembourrées en air

Family Applications After (1)

Application Number Title Priority Date Filing Date
EP11003764A Not-in-force EP2345344B1 (fr) 2009-01-27 2010-01-22 Siège de travail doté de surfaces d'appui rembourrées en air

Country Status (3)

Country Link
EP (2) EP2210528B1 (fr)
AT (1) ATE531295T1 (fr)
DE (1) DE102009006276A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102011056354B4 (de) * 2011-03-09 2014-09-04 Ilse Stöcker Sitzsystem
US11319075B1 (en) 2021-03-10 2022-05-03 B/E Aerospace, Inc. Compressible cushion for an aircraft seat

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH412594A (de) 1964-03-05 1966-04-30 Kuster Eugen An Rückenlehnen von Fahrzeugsitzen anzuordnendes Luftpolster
DE19827683C1 (de) 1998-06-22 1999-10-28 Metzeler Schaum Gmbh Sich selbst aufblasendes Polster
DE20120023U1 (de) 2001-12-11 2002-04-18 Gebhard, Reinhard, 90559 Burgthann Luftpolsterungssystem für Stühle, Sitze, Sessel o.dgl.

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3037659C2 (de) * 1980-10-04 1983-12-15 Kurt 7500 Karlsruhe Herzer Rückenstütze
US4555140A (en) * 1984-02-23 1985-11-26 Japan Vehicle seat
DE3545016A1 (de) * 1985-12-19 1987-07-02 Continental Gummi Werke Ag Pneumatisches polster
US5190348A (en) * 1991-10-25 1993-03-02 Findlay Industries Self-inflating support device including curved memory plate
JP3338977B2 (ja) * 1996-06-13 2002-10-28 積水化成品工業株式会社 樹木の保護装置
US6209159B1 (en) * 1997-01-10 2001-04-03 Comfortex Health Care Surfaces Pressure reducing cushion with selective pressure point relief
AU2001255683A1 (en) * 2000-04-25 2001-11-07 Edizone, Lc Contourable inflatable orthopedic pillow
DE10353596A1 (de) * 2003-11-12 2005-06-16 Volkswagen Ag Sitz
DE102004010573B4 (de) * 2004-03-02 2008-06-19 Renaud Louis Scholzen Aufblasbares Sitzkissen
US20110025111A1 (en) * 2007-12-20 2011-02-03 David Wornell Seating systems incorporating self-inflating adjustable supports

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH412594A (de) 1964-03-05 1966-04-30 Kuster Eugen An Rückenlehnen von Fahrzeugsitzen anzuordnendes Luftpolster
DE19827683C1 (de) 1998-06-22 1999-10-28 Metzeler Schaum Gmbh Sich selbst aufblasendes Polster
DE20120023U1 (de) 2001-12-11 2002-04-18 Gebhard, Reinhard, 90559 Burgthann Luftpolsterungssystem für Stühle, Sitze, Sessel o.dgl.

Also Published As

Publication number Publication date
EP2210528B1 (fr) 2011-11-02
DE102009006276A1 (de) 2010-07-29
ATE531295T1 (de) 2011-11-15
EP2345344A1 (fr) 2011-07-20
EP2210528A3 (fr) 2011-01-26
EP2345344B1 (fr) 2012-11-07

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