DE4211895A1 - Inflatable car seat - has internal cushion filled with porous foam which can be inflated or deflated by air pump - Google Patents

Inflatable car seat - has internal cushion filled with porous foam which can be inflated or deflated by air pump

Info

Publication number
DE4211895A1
DE4211895A1 DE4211895A DE4211895A DE4211895A1 DE 4211895 A1 DE4211895 A1 DE 4211895A1 DE 4211895 A DE4211895 A DE 4211895A DE 4211895 A DE4211895 A DE 4211895A DE 4211895 A1 DE4211895 A1 DE 4211895A1
Authority
DE
Germany
Prior art keywords
cushion
foam
seat
inflated
contour
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
DE4211895A
Other languages
German (de)
Inventor
Eberhard Dipl Ing Faust
Josef Dipl Ing Klink
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.)
Daimler Benz AG
Original Assignee
Daimler Benz AG
Mercedes Benz 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 Daimler Benz AG, Mercedes Benz AG filed Critical Daimler Benz AG
Priority to DE4211895A priority Critical patent/DE4211895A1/en
Publication of DE4211895A1 publication Critical patent/DE4211895A1/en
Ceased legal-status Critical Current

Links

Classifications

    • AHUMAN NECESSITIES
    • A47FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47CCHAIRS; SOFAS; BEDS
    • A47C7/00Parts, details, or accessories of chairs or stools
    • A47C7/36Support for the head or the back
    • A47C7/40Support for the head or the back for the back
    • A47C7/46Support for the head or the back for the back with special, e.g. adjustable, lumbar region support profile; "Ackerblom" profile chairs
    • A47C7/467Support 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
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60NSEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
    • B60N2/00Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
    • B60N2/90Details or parts not otherwise provided for
    • B60N2/914Hydro-pneumatic adjustments of the shape

Abstract

The car seat with a deformable body support is covered with padding and contains at least one airtight elastic cushion connected to an air supply via a pump (8) and a valve (9). The cushion is filled with porous elastic foam. In the slack state, the foam assumes a basic contour. By suitable switching of the pump, the cushion can be inflated or deflated to suit the person on the seat. Several possible shapes of the foam body within the cushion are shown and it may possess ribs which create cavities between the foam and the cushion in the slack state. ADVANTAGE - Allows adjustable seat contour to suit person on it.

Description

Die Erfindung betrifft einen Sitz, insbesondere einen Fahrzeug­ sitz, gemäß des Oberbegriffes des Patentanspruches 1.The invention relates to a seat, in particular a vehicle seat, according to the preamble of claim 1.

Ein Sitz der gattungsgemäßen Bauart ist aus der DE-OS 39 04 090 bekannt. Die gewünschte Polsterkontur wird durch gezielten Kör­ perdruck des jeweiligen Benutzers auf die aufgeblähte Körperab­ stützung ausgebildet, wobei er eine optimale Körperhaltung ein­ nehmen muß. Der Benutzer ist dabei jedoch häufig überfordert, so daß bei der Verformung der Polsterkontur fehlerhafte Körper­ haltungen festgehalten werden können.A seat of the generic type is from DE-OS 39 04 090 known. The desired contour of the upholstery is determined by targeted bodies imprint of the respective user on the inflated body support trained, taking an optimal posture must take. However, the user is often overwhelmed so that defective bodies when deforming the upholstery contour attitudes can be recorded.

Der Erfindung liegt die Aufgabe zugrunde, den gattungsgemäßen Sitz derart weiterzubilden, daß bei der Sitzeinstellung eine Ausbildung fehlerhafter Körperhaltungen in der Polsterkontur vermieden wird.The invention has for its object the generic To further develop the seat so that a Formation of incorrect postures in the upholstery contour is avoided.

Die Aufgabe ist erfindungsgemäß durch die im Patentanspruch 1 angegebenen kennzeichnenden Merkmale gelöst.The object is according to the invention in that in claim 1 specified characteristic features solved.

Erfindungsgemäß weist hierzu der Schaumstoffkörper der Körper­ abstützung in unbelastetem Zustand eine an eine durchschnittli­ che Körperkontur angepaßte Grundform auf.According to the invention, the foam body has the body for this support in the unloaded state one to an average che body contour adapted basic shape.

Der Benutzer findet dabei schon vor der Benutzung des Sitzes eine annähernd an seine Körperkontur angepaßte Grundform der Polsterkontur vor, so daß zur optimalen körpergerechten Anpassung nur geringfügige Formveränderungen an der Körperab­ stützung vorzunehmen sind. Dadurch wird die Möglichkeit der Einstellung von Fehlhaltungen in der Polsterkontur ausgeschlos­ sen.The user will find this before using the seat an approximate basic shape of the body shape Upholstery contour in front, so that for optimal body-appropriate  Adaptation only slight changes in shape to the body support must be provided. This will make the possibility of Setting of incorrect postures in the upholstery contour excluded sen.

In einer vorteilhaften Ausbildung der Erfindung nach Anspruch 2 ist mittels des Druckerzeugers bedarfsweise ein Über- oder Un­ terdruck in der Hülle der als Kissen ausgebildeten Körperab­ stützung erzeugbar. Dadurch ist ein Formungsbereich von der Grundform bis zur Form bei voll aufgeblasenem bzw. voll evaku­ iertem Zustand des Kissens zugänglich, in dem nur ein geringer Druck angelegt werden muß, um einzelne Ausbildungsformen des Kissens zu erreichen. Mit der geringeren Druckbeaufschlagung werden Verhärtungen im Abstützbereich beim Aufblasen des Kis­ sens weitgehend verhindert.In an advantageous embodiment of the invention according to claim 2 by means of the pressure generator is, if necessary, an overs or un pressure in the shell of the body designed as a pillow support can be generated. This makes a molding area of the Basic shape to shape with fully inflated or fully evacuated ized condition of the pillow accessible, in which only a small Pressure must be put on individual forms of training To reach the pillow. With the lower pressurization hardening in the support area when inflating the kis largely prevented.

Ferner besitzt aufgrund des geringeren Überdruckes im aufgebla­ senen Zustand das Kissen eine größere Elastizität gegenüber dem Anlagedruck des Körpers des Benutzers, so daß durch den gerin­ geren Widerstand Querbewegungen der Abstützung im Polsterver­ band verringert und das damit verbundene Auftreten bleibender Verschiebungen im wesentlichen verhindert werden.Furthermore, due to the lower excess pressure in the inflated the pillow has greater elasticity compared to that System pressure of the user's body, so that by the gerin lower resistance Cross movements of the support in the upholstery server band reduced and the associated occurrence more permanent Shifts are essentially prevented.

In der nachfolgenden Zeichnungsbeschreibung werden vier Ausfüh­ rungsbeispiele der Erfindung näher erläutert.The following description of the drawing shows four versions tion examples of the invention explained in more detail.

Es zeigt:It shows:

Fig. 1 den erfindungsgemäßen Sitz mit einer Körperabstützung in einer aufgebrochenen Darstellung, FIG. 1 the seat according to the invention with a body support in a broken representation,

Fig. 2 schematisch die Körperabstützung aus Fig. 1 in einem verformten Zustand im Längsschnitt, Fig. 2 schematically shows the body support of Fig. 1, in a deformed state in a longitudinal section

Fig. 3 eine Körperabstützung im Längsschnitt mit einem geripp­ ten Schaumstoffkörper, Fig. 3 is a body support in longitudinal section with a geripp th foam body,

Fig. 4 die Körperabstützung aus Fig. 1 in einer geschnittenen Draufsicht, Fig. 4 shows the body support of Fig. 1 in a sectional top view,

Fig. 5 eine Körperabstützung im Schnitt mit zwei Schaumstoff­ körpern mit seitlich ausgebildeten Aussparungen. Fig. 5 is a body support in section with two foam bodies with laterally formed recesses.

In Fig. 1 ist ein Fahrzeugsitz 1 dargestellt, welcher im Len­ denlordosenbereich in seiner Rückenlehne 2 unter einer Polster­ auflage 3 ein durch Anlegen eines Druckes verformbares Kissen 4 als Körperabstützung besitzt.In Fig. 1, a vehicle seat 1 is shown, which in the Len denlordosenbereich in his backrest 2 under a cushion pad 3 has a deformable cushion 4 by applying pressure as body support.

Die Kissen 4 umfaßt eine luftdichte elastische Hülle 5 aus Kunststoff, in der ein offenporiger elastischer Schaumstoffkör­ per 6 angeordnet ist.The pillow 4 comprises an airtight elastic sleeve 5 made of plastic, in which an open-pore elastic foam is arranged by 6 .

An die Hülle 5 des Kissens 4 ist eine Druckluftleitung 7 ange­ schlossen, welche mit einer Luftdruckpumpe 8 verbunden ist. Mittels der Luftdruckpumpe 8 ist in der Hülle 5 des Kissens 4 bedarfsweise ein Überdruck oder ein Unterdruck über ein Regel­ ventil 9 erzeugbar.At the shell 5 of the cushion 4 , a compressed air line 7 is connected, which is connected to an air pressure pump 8 . By means of the air pressure pump 8 , an overpressure or underpressure can be generated via a control valve 9 in the casing 5 of the cushion 4 .

Die Hülle 5 weist desweiteren an den Rändern ihrer Oberseite 10 nach oben gerichtete Zipfel 11 auf, mit denen er am Sitz 1 be­ festigt ist.The shell 5 also has on the edges of its top 10 upward tip 11 with which it is fastened to the seat 1 be.

Insgesamt ist das Kissen 4 so ausgebildet, daß sein Schaum­ stoffkörper 6 in unbelastetem Zustand eine an eine durch­ schnittliche Körperkontur angepaßte Grundform einnimmt. Bei Belastung des Sitzes 1 regelt der Benutzer mit Hilfe eines hier nicht weiter dargestellten Schalters den Druck der Pumpe 8 über das Regelventil 9 derart, daß sich das Kissen 4 durch Aufblasen oder Evakuieren der Hülle 5 optimal an die Körperkontur anpaßt.Overall, the pillow 4 is designed so that its foam material body 6 assumes a basic shape adapted to an average body contour in the unloaded state. When the seat 1 is loaded, the user controls the pressure of the pump 8 via the control valve 9 with the aid of a switch (not shown here) in such a way that the cushion 4 adapts optimally to the body contour by inflating or evacuating the cover 5 .

In den Fig. 2 bis 5 sind Ausbildungsformen des Kissens 4 aus Fig. 1 dargestellt.In Figs. 2 to 5 of the cushion 4 of Fig. 1 are shown embodiments.

In Fig. 2 ist der Schaumstoffkörper 6 in zwei annähernd quader­ förmige Einzelkörper 6a und 6b geteilt, welche mit ihren Trenn­ flächen aneinanderliegen.In Fig. 2, the foam body 6 is divided into two approximately cuboid-shaped individual bodies 6 a and 6 b, which lie against one another with their separating surfaces.

Die Einzelkörper 6a, 6b können aus unterschiedlichen Schaumstof­ fen gebildet sein. Die Trennflächen weisen eine geringe Rauhig­ keit auf, so daß die Einzelkörper 6a und 6b leicht gegeneinan­ der verschiebbar sind.The individual body 6 a, 6 b can be formed from different foam materials. The partitions have a low Rauhig speed, so that the individual body 6 a and 6 b are easily moved against each other.

Der Schaumstoffkörper 6 liegt zwar an der umgebenden Hülle 5 an, besitzt jedoch insgesamt mit dieser keine Verbindung und ist somit in dieser selbst beweglich gehalten.The foam body 6 is in contact with the surrounding sheath 5 , but has no connection with it as a whole and is thus held movably in it itself.

Durch die höhere Beweglichkeit des Schaumstoffkörpers 6 und seiner Einzelkörper 6a und 6b und den damit verbundenen gerin­ geren Widerstand gegen den Körperdruck des Benutzers des Sitzes 1 werden Verhärtungen des Kissens 4 bei einer Sitzbenutzung verhindert.Due to the higher mobility of the foam body 6 and its individual body 6 a and 6 b and the associated low resistance to the body pressure of the user of the seat 1 hardening of the pillow 4 are prevented when using the seat.

Fig. 3 zeigt eine benutzerseitig zum Sitzbenutzer vorgewölbte Hülle 5, die einen an der Wölbungsfläche anliegenden Schaum­ stoffkörper 6 einschließt. Fig. 3 shows a pre-arched shell 5 on the user side, which includes a foam body 6 lying against the arch surface.

Der Schaumstoffkörper 6 weist an seiner Kontur im Wölbungsbe­ reich der Hülle 5 Aussparungen 12 auf, die in Längsrichtung des Kissens 4 verlaufen und dabei durchgehende Kanäle bilden. The foam body 6 has on its contour in the Wölbungsbe rich of the shell 5 recesses 12 which extend in the longitudinal direction of the cushion 4 and thereby form continuous channels.

Dadurch wird eine gerichtete Druckluftzufuhr und - abfuhr über die Druckleitung 7 zur Abstützzone des Kissens 4 ermöglicht, wodurch in kürzester Zeit große Volumenänderungen in der Hülle 5 erreichbar sind.This enables a directed supply and discharge of compressed air via the pressure line 7 to the support zone of the cushion 4 , as a result of which large volume changes in the casing 5 can be achieved in the shortest possible time.

In Fig. 4 ist der von der Hülle 5 umgebene Schaumstoffkörper 6 an seiner Kontur mit quer zur Längsrichtung des Kissens 4 durchgehend verlaufenden Aussparungen 12 rechteckförmigen Quer­ schnittes ausgebildet. Der Schaumstoffkörper 6 weist somit ein mit einer Vielzahl von Rippen 13 ausgestaltetes Profil auf.In Fig. 4, the foam body 6 surrounded by the envelope 5 is formed on its contour with cutouts 12 rectangular cross-section extending continuously to the longitudinal direction of the cushion 4 . The foam body 6 thus has a profile designed with a plurality of ribs 13 .

Dadurch wird eine weitere Verbesserung der gerichteten Druck­ luftzu- und -abführung zur und von der Abstützzone erreicht.This will further improve the directed pressure Air supply and discharge to and from the support zone reached.

Fig. 5 zeigt in Abweichung zu Fig. 3 eine benutzerseitig und rückseitig ausgewölbte Hülle 5. Der in dieser eingeschlossene Schaumstoffkörper 6 ist wie in Fig. 2 in zwei annähernd quader­ förmige Einzelkörper 6a und 6b geteilt. Diese weisen hier an ihren Konturen vertikal und parallel zueinander verlaufende Aussparungen 12 und zwischen diesen jeweils liegende Rippen 13 auf. Fig. 5 shows, in contrast to FIG. 3, a user side and rear bulged sheath 5. The foam body 6 enclosed in this is divided into two approximately cuboidal individual bodies 6 a and 6 b as in FIG. 2. Their contours here have cutouts 12 running vertically and parallel to one another and ribs 13 lying between them.

Claims (3)

1. Sitz, insbesondere Fahrzeugsitz, mit einer verformbaren Kör­ perabstützung, welche von einer Polsterauflage verdeckt ist und welche mindestens ein mit einem Druckerzeuger verbundenes luft­ dichtes elastisches Kissen mit einem darin angeordneten porösen elastischen Schaumstoffkörper umfaßt, dadurch gekennzeichnet, daß der Schaumstoffkörper (6) in unbelastetem Zustand eine an eine durchschnittliche Körperkontur angepaßte Grundform auf­ weist.1. Seat, in particular vehicle seat, with a deformable body support, which is covered by a cushion and which comprises at least one air-tight elastic cushion connected to a pressure generator with a porous elastic foam body arranged therein, characterized in that the foam body ( 6 ) in unloaded condition has a basic shape adapted to an average body contour. 2. Sitz nach Anspruch 1, dadurch gekennzeichnet, daß mittels des Druckerzeugers bedarfsweise ein Über- oder Un­ terdruck in der Hülle (5) des Kissens (4) erzeugbar ist.2. Seat according to claim 1, characterized in that by means of the pressure generator, if necessary, a positive or negative pressure in the sheath ( 5 ) of the cushion ( 4 ) can be generated. 3. Sitz nach einem der Ansprüche 1 oder 2, dadurch gekennzeichnet, daß die Kontur des Schaumstoffkörpers (6) Aussparungen (12) aufweist.3. Seat according to one of claims 1 or 2, characterized in that the contour of the foam body ( 6 ) has recesses ( 12 ).
DE4211895A 1992-04-09 1992-04-09 Inflatable car seat - has internal cushion filled with porous foam which can be inflated or deflated by air pump Ceased DE4211895A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE4211895A DE4211895A1 (en) 1992-04-09 1992-04-09 Inflatable car seat - has internal cushion filled with porous foam which can be inflated or deflated by air pump

Applications Claiming Priority (1)

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DE4211895A DE4211895A1 (en) 1992-04-09 1992-04-09 Inflatable car seat - has internal cushion filled with porous foam which can be inflated or deflated by air pump

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DE4211895A1 true DE4211895A1 (en) 1993-10-14

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Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4228637A1 (en) * 1992-08-28 1994-03-03 Roeder Soehne Sitzmoebelfab Chair with a height-adjustable backrest
DE19638550A1 (en) * 1996-09-20 1998-03-26 Bayerische Motoren Werke Ag Variable shape cushion for vehicle seat
EP0903289A1 (en) * 1997-09-19 1999-03-24 Sup'air Schock absorbing device for a paraglider seat
DE19917495A1 (en) * 1999-04-17 2000-10-19 Keiper Gmbh & Co Vehicle seat; has air sack provided in area of at least one seat pad in seat cushion, where air or gas quantity in air sack can be adjusted
DE19938698A1 (en) * 1999-08-14 2001-02-15 Volkswagen Ag Vehicle seat
WO2002032272A1 (en) * 2000-10-18 2002-04-25 Röder Haworth Büro-Sitzmöbel Gmbh Chair
DE10358951A1 (en) * 2003-12-15 2005-07-07 Deutsche Lufthansa Ag Air cushion system for a passenger seat
DE102004008408A1 (en) * 2004-02-20 2005-09-08 Metzeler Schaum Gmbh Seat padding, useful in e.g. seats of motor vehicles and airplanes, comprises a gas proof flexible cover, a cushion element made from molded foam and a valve
DE102004005843A1 (en) * 2004-02-06 2005-09-08 Adam Opel Ag supply system
DE102004029062B3 (en) * 2004-06-16 2005-09-08 Metzeler Schaum Gmbh Seat insert, comprises a gas tight sleeve with inner and outer surfaces, and a valve which controls the amount of gas in the sleeve
DE102004013674A1 (en) * 2004-03-15 2005-10-06 Volkswagen Ag Seat for a motor vehicle, an aircraft or the like comprises at least within the back rest area an elastically compliant foam cushioning formed by covered pockets which contain open-cell, self-inflating foam
WO2006032548A1 (en) * 2004-09-22 2006-03-30 Robert Bosch Gmbh Reciprocating pump for delivering fluids
DE102007032448A1 (en) * 2007-07-12 2009-01-22 GM Global Technology Operations, Inc., Detroit Motor vehicle seat, has side bolster hinged on another side bolster, where side bolsters respectively comprise venting and/or inflatable and/or evacuatable airtight bubbles, and compressible foam material content arranged in bubbles
EP2939572A1 (en) * 2014-04-30 2015-11-04 Axel Grabow Seating device, chair or sofa
US9468301B2 (en) 2013-04-30 2016-10-18 Tropitone Furniture Co., Inc. Seating with adjustable cushions

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1922218A1 (en) * 1968-05-07 1969-11-20 Sabena Sa Belge D Expl De La N Cushions for sitting or lying furniture
DE2333941A1 (en) * 1972-07-13 1974-01-31 Bertrand Faure Puteaux Ets UPHOLSTERED SEAT
DE3904090A1 (en) * 1989-02-11 1990-08-23 Grammer Ag Seat, in particular vehicle seat

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1922218A1 (en) * 1968-05-07 1969-11-20 Sabena Sa Belge D Expl De La N Cushions for sitting or lying furniture
DE2333941A1 (en) * 1972-07-13 1974-01-31 Bertrand Faure Puteaux Ets UPHOLSTERED SEAT
DE3904090A1 (en) * 1989-02-11 1990-08-23 Grammer Ag Seat, in particular vehicle seat

Cited By (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4228637A1 (en) * 1992-08-28 1994-03-03 Roeder Soehne Sitzmoebelfab Chair with a height-adjustable backrest
DE19638550A1 (en) * 1996-09-20 1998-03-26 Bayerische Motoren Werke Ag Variable shape cushion for vehicle seat
DE19638550B4 (en) * 1996-09-20 2008-02-14 Bayerische Motoren Werke Ag Equipment part of vehicles with an outer contour affecting volume variable container
EP0903289A1 (en) * 1997-09-19 1999-03-24 Sup'air Schock absorbing device for a paraglider seat
FR2768698A1 (en) * 1997-09-19 1999-03-26 Sup Air IMPACT DAMPING DEVICE FOR PARAGLIDING SADDLE
DE19917495B4 (en) * 1999-04-17 2005-06-09 Keiper Gmbh & Co. Kg vehicle seat
DE19917495A1 (en) * 1999-04-17 2000-10-19 Keiper Gmbh & Co Vehicle seat; has air sack provided in area of at least one seat pad in seat cushion, where air or gas quantity in air sack can be adjusted
DE19938698A1 (en) * 1999-08-14 2001-02-15 Volkswagen Ag Vehicle seat
WO2002032272A1 (en) * 2000-10-18 2002-04-25 Röder Haworth Büro-Sitzmöbel Gmbh Chair
DE10358951A1 (en) * 2003-12-15 2005-07-07 Deutsche Lufthansa Ag Air cushion system for a passenger seat
DE10358951B4 (en) * 2003-12-15 2015-02-12 Deutsche Lufthansa Ag Air cushion arrangement for a passenger seat
DE102004005843A1 (en) * 2004-02-06 2005-09-08 Adam Opel Ag supply system
DE102004008408A1 (en) * 2004-02-20 2005-09-08 Metzeler Schaum Gmbh Seat padding, useful in e.g. seats of motor vehicles and airplanes, comprises a gas proof flexible cover, a cushion element made from molded foam and a valve
DE102004008408B4 (en) * 2004-02-20 2006-10-05 Metzeler Schaum Gmbh Seat insert and method of making such
DE102004013674A1 (en) * 2004-03-15 2005-10-06 Volkswagen Ag Seat for a motor vehicle, an aircraft or the like comprises at least within the back rest area an elastically compliant foam cushioning formed by covered pockets which contain open-cell, self-inflating foam
DE102004029062B3 (en) * 2004-06-16 2005-09-08 Metzeler Schaum Gmbh Seat insert, comprises a gas tight sleeve with inner and outer surfaces, and a valve which controls the amount of gas in the sleeve
WO2006032548A1 (en) * 2004-09-22 2006-03-30 Robert Bosch Gmbh Reciprocating pump for delivering fluids
DE102007032448A1 (en) * 2007-07-12 2009-01-22 GM Global Technology Operations, Inc., Detroit Motor vehicle seat, has side bolster hinged on another side bolster, where side bolsters respectively comprise venting and/or inflatable and/or evacuatable airtight bubbles, and compressible foam material content arranged in bubbles
US9468301B2 (en) 2013-04-30 2016-10-18 Tropitone Furniture Co., Inc. Seating with adjustable cushions
EP2939572A1 (en) * 2014-04-30 2015-11-04 Axel Grabow Seating device, chair or sofa

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