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EP2243398B1 - Seating - Google Patents

Seating Download PDF

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Publication number
EP2243398B1
EP2243398B1 EP10003772A EP10003772A EP2243398B1 EP 2243398 B1 EP2243398 B1 EP 2243398B1 EP 10003772 A EP10003772 A EP 10003772A EP 10003772 A EP10003772 A EP 10003772A EP 2243398 B1 EP2243398 B1 EP 2243398B1
Authority
EP
European Patent Office
Prior art keywords
frame
seat
backrest
item
seating furniture
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.)
Active
Application number
EP10003772A
Other languages
German (de)
French (fr)
Other versions
EP2243398A1 (en
Inventor
Matthias Dipl.-Ing. Dipl.-Betr. Votteler
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.)
Votteler Designpartner GmbH
Original Assignee
Votteler Designpartner GmbH
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 Votteler Designpartner GmbH filed Critical Votteler Designpartner GmbH
Priority to PL10003772T priority Critical patent/PL2243398T3/en
Publication of EP2243398A1 publication Critical patent/EP2243398A1/en
Application granted granted Critical
Publication of EP2243398B1 publication Critical patent/EP2243398B1/en
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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
    • A47C1/00—Chairs adapted for special purposes
    • A47C1/02—Reclining or easy chairs
    • A47C1/031—Reclining or easy chairs having coupled concurrently adjustable supporting parts
    • A47C1/032—Reclining or easy chairs having coupled concurrently adjustable supporting parts the parts being movably-coupled seat and back-rest
    • A47C1/03255—Reclining or easy chairs having coupled concurrently adjustable supporting parts the parts being movably-coupled seat and back-rest with a central column, e.g. rocking office chairs
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47C—CHAIRS; SOFAS; BEDS
    • A47C1/00—Chairs adapted for special purposes
    • A47C1/02—Reclining or easy chairs
    • A47C1/031—Reclining or easy chairs having coupled concurrently adjustable supporting parts
    • A47C1/032—Reclining or easy chairs having coupled concurrently adjustable supporting parts the parts being movably-coupled seat and back-rest
    • A47C1/03261—Reclining or easy chairs having coupled concurrently adjustable supporting parts the parts being movably-coupled seat and back-rest characterised by elastic means
    • A47C1/03272—Reclining or easy chairs having coupled concurrently adjustable supporting parts the parts being movably-coupled seat and back-rest characterised by elastic means with coil springs
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47C—CHAIRS; SOFAS; BEDS
    • A47C1/00—Chairs adapted for special purposes
    • A47C1/02—Reclining or easy chairs
    • A47C1/031—Reclining or easy chairs having coupled concurrently adjustable supporting parts
    • A47C1/032—Reclining or easy chairs having coupled concurrently adjustable supporting parts the parts being movably-coupled seat and back-rest
    • A47C1/03294—Reclining or easy chairs having coupled concurrently adjustable supporting parts the parts being movably-coupled seat and back-rest slidingly movable in the base frame, e.g. by rollers

Definitions

  • the invention relates to a chair with a support frame and a relative to this between a front working position and a rear rest position sliding in a sliding guide, a seat supporting seat frame and with a relative to the seat frame pivoting, with the seat frame kinematically coupled frame for a backrest.
  • Such a piece of furniture is already widely used in daily practice, especially in the office and is therefore due to obvious prior use of the prior art.
  • the focus is on the ergonomically sensible change between hollow and round backs when sitting.
  • a back support in all positions should be made possible. This is achieved by a kinematic coupling of the seat with the backrest, which is held on a side frame member.
  • This frame element is guided in a slotted guide such that the movement from the working position into the rear rest position leads to an inclination of the backrest to the rear and at the same time to a lowering of the backrest.
  • the seat is moved along a substantially horizontal plane.
  • the seat has at its rear end a vertical upward bend, which is parallel to the back of the work in the working position, in the rest position, however, with this includes an acute angle.
  • An associated with both the backrest and with this bend pad thus undergoes an additional slope, which differs from the actual backrest.
  • the DE 10 2007 012 728 A1 relates to a passenger seat for vehicles, in particular rail vehicles, with a seat part and a backrest, wherein the seat part relative to a common with the backrest base frame in the seat longitudinal direction is displaceable.
  • the seat part by moving the seat part forward at the same time a rearward bulge of the backrest in the lumbar region is obtained as support for a kyphosis position of the back, so that the entire seat part surface is still available, although the lower part of the backrest cushion is pulled forward.
  • the DE 10 2006 056 928 B3 relates to a seat with a seat plate and a backrest, wherein the seat plate is connected to a first connecting means with a base means and adjustable with respect to the base means in the height and at the same time in the inclination and in the seat longitudinal direction.
  • the two laterally opposite front-side connecting lever and the two laterally opposite rear connecting lever between the base device and the seat plate a Parallelogrammgestlinde, which is achieved by the dimensions of the front and the rear link, that when pivoting the connecting lever, the seat plate in relation to Base device is moved from an at least approximately horizontal position in the seat longitudinal direction to the top front and with its rear part down.
  • the backrest is adjusted with its lower part forward and with its shoulder portion to the rear.
  • a synchronous mechanism for office chairs is known.
  • a base support is placed on a chair column, to which on the one hand a pivotable about a transverse axis, hingedly connected to the base support seat carrier and on the other hand a pivotable about a transverse axis, hingedly connected to the base support backrest support is mounted.
  • Seat support and backrest support are coupled so articulated that a pivoting movement of the backrest to the rear induces a downward movement of the rear edge of the seat down.
  • DE 199 22 446 A1 relates to a synchronous mechanism for a correlated seat-backrest movement of an office chair.
  • a seating is also off US 4,452,486 known.
  • the invention has for its object to provide a way to realize a further improved, ergonomic and orthopedic advantageous sitting position by several mutually movable elements of the seat. At the same time required for the realization of design effort should be kept relatively low.
  • a chair in which the frame carries a pelvic support arranged in the rear region of the seat, which is inclined in the working position with respect to the plane of the seat, and in which a support element of the support frame extends into the region of the backrest and carries an abutment to which the frame is slidably and pivotally supported and the frame is connected to a rear end portion of the seat frame with the latter by a hinge.
  • the invention is based on the surprising finding that not only the shape of the backrest or the displacement of the seat leads to an ergonomic and orthopedic advantageous seating position, but rather the subdivision of the seat in a larger front seat area, which also forms the main seat, and in a smaller rear, so the backrest adjacent formed by the pelvic support area a significant improvement in sitting position allows.
  • the pelvic support in the rest position unfolds no special support function, this occurs in a shift of the working position, while supporting the pelvis and at the same time exerts a pleasant pressure load with a direction of action forward, so that the undesirable, slipping back of the buttocks area is avoided.
  • this extremely advantageous effect is also realized in a technically relatively simple manner, namely by the pelvic support is immovably connected to the backrest and is pivoted together with this around a horizontal joint, which extends between the front seat area and the pelvic support.
  • a slotted guide for the frame is therefore not required.
  • the joint which not only defines the pivoting movement, but also transmits the sliding movement of the user of the seat on the frame, in conjunction with the abutment on which the frame performs a superimposed pan and displacement movement.
  • the abutment is arranged in a plane well above the seat.
  • the pelvic support can have both a support body, which as well as the seat is covered by a common cushion element, as well as a separate molded part with deviating degree of hardness.
  • the joint is arranged on both sides of the seat and has a common, physical or virtual pivot axis. In particular, the joint has only a single degree of freedom.
  • a particularly advantageous embodiment is also achieved in that the pelvic support is arranged inclined only in its working position relative to the plane of the seat upwards.
  • the pelvic support of the seat closes flush with the surface, so that it is only enlarged in principle.
  • the pelvic support raises and unfolds the desired support function comparable to a known wedge pillow by the oblique, rising backwards shape, so that the pelvis and the loins are automatically tilted slightly to the. This raises the chest and spine is stretched, so the pelvis and lumbar area is greatly relieved.
  • a lowered position of the pelvic support may be provided in the rest position.
  • the inclination angle can be made adjustable. Depending on the individual preference, the pelvic support can then lie in the rest position in a common plane with the seat surface.
  • a particularly simple and at the same time highly effective embodiment is achieved when the pelvic support and the backrest are immovable relative to each other in the movement between the working position and the rest position.
  • the pelvic support unfolds a supporting effect to the user of the chair before.
  • the invention overcomes the prejudice of the art, according to which a fixed angle between the seat and backrest is to be avoided in principle.
  • the backrest relative to the frame during movement between the working position and the rest position relative to each other is immovable, whereas, however, a adjustability of the backrest relative to the frame, for example, in sections for generating desired contouring, conceivable and useful is.
  • the frame has on the one hand a pelvic support, on the other hand, the backrest associated area. Accordingly, a variant in which the frame has an angle element, which is connected with its first leg to the backrest and with its further leg to the pelvic support, proves to be particularly simple. Both the backrest and the pelvic support may be interchangeable at this angle element. In particular, such a functioning mechanism is created independently of the aesthetic design, which opens up a variety of applications.
  • a particularly simple embodiment of the present invention is achieved when the joint connecting the frame with the seat frame is designed as a hinge joint, so as to realize the desired trajectory with little design effort.
  • the support frame forms a stop for the movement of the backrest in the rest position, so that the backrest in the rest position, in which an increased load acts not only against the abutment, but in addition against the Stop, for example, positively abuts.
  • the stop flush with the back of the seat back stabilizes the lateral force introduction.
  • Another, also particularly promising modification is created by the fact that the frame is guided laterally in a guide, in particular in a profile, wherein the frame in the first place counteracts an undesirable lateral displacement, ie transversely to the direction of movement of the seat.
  • the guide can also form a slide for the frame, so that the guide fulfills the function of the abutment and can account for a separate abutment.
  • a particularly advantageous embodiment of the present invention is achieved when the abutment can be fixed in different positions and so the distance of Abutment against the seat is adjustable.
  • the abutment can be arranged on an adjustable flange, which can be adjusted without tools, for example, by means of an actuating means.
  • the supporting element carrying the abutment can also be made adjustable relative to the support frame.
  • An essential advantage of the invention is also that the required according to the prior art complex adaptation to different body weights omitted according to the invention. Nevertheless, it proves to be desirable in practice, when the seat and / or backrest is movable against the restoring force of a spring element in the rest position, so that the seat automatically assumes its upright working position when relieved by the user.
  • the spring element can for this purpose be designed as a simple coil spring and integrated into the sliding guide of the seat.
  • the abutment can be formed in a simple manner by a mere contact surface. Particularly useful, however, is a modification in which the abutment is designed as a sliding or roller bearings and thus at the same time allows a displacement of the frame on the abutment and a pivoting movement about the abutment.
  • wheels or rollers which can also be made profiled, as well as plain bearings, which may preferably have a friction-reducing coating, such as PTFE.
  • the seat frame carries a front seat cushion and the frame carries a immediately adjacent to the front seat cushion pelvic support of the pelvic support, so that an attractive and high-quality aesthetic appearance is achieved.
  • the seating furniture can be realized in a variety of forms.
  • the seating can be designed as a work chair, office chair, waiting chair, for example in the waiting area of an airport, resting chair or as a seat of a motor vehicle, aircraft or rail vehicle, as a dental chair in the medical and therapeutic field and also as a barber chair or the like be also pure recliner can be advantageously equipped with the motion kinematics according to the invention.
  • the seating 1 will be described below with reference to the FIGS. 1 to 3 explained in more detail, showing the seating 1 from different views. For better understanding, the depiction of upholstered elements was omitted.
  • the chair 1 has a support frame 2, which is constructed on a known bogie 3.
  • This support frame 2 carries a relative to this, between a dashed only shown front working position in a rear rest position in a sliding guide 4 horizontally displaceable seat frame 5 with only hinted to recognize seat 6.
  • the sliding in a plane seat frame 5 is provided with a relative to the Seat frame 5 and the support frame 2 pivotally movable frame 7 kinematically coupled.
  • This frame 7 carries on the one hand a backrest 8, on the other hand also arranged in the rear region of the seat surface 6 pelvic support 9.
  • the frame 7 is designed as a bending frame member 10, which with a first leg with the backrest 8 and another Leg is connected to the pelvic support 9.
  • this pelvic support 9 is inclined in the working position relative to the plane of the seat surface 6 and thus emerges from the plane of the seat surface 6, while the pelvic support 9 is lowered in the rest position relative to the seat surface 6.
  • the mechanism required for this kinematics furthermore comprises a support element 11 connected to the support frame 2, which extends into the area of the backrest 8 and is equipped there with a stop 12 for the rest position of the backrest 8.
  • an abutment 13 for the frame 7 or the backrest 8 is arranged on the support element 11, which allows a superimposed displacement and pivoting movement and is realized in the illustrated variant by a roller.
  • the frame 7 is therefore on the one hand supported on this abutment 13, on the other hand connected to a rear end portion of the seat frame 5 with this executed by a hinge joint 14, so therefore an inclination of the backrest from the working position shown in dashed lines in the rest position to a slope and at the same time to a lowering of the backrest 8, but also to a lowering of the rigidly connected to the backrest 8 pelvic support 9 and their displacement leads to the front. Due to the kinematic coupling in this way, the seat 6 after postponed.
  • the abutment 13 in different positions corresponding to a plurality of fixation of the abutment 13 selectively receiving recesses 15 can be fixed so as to adjust the distance a of the abutment 13 relative to the seat 6 in this way are different ergonomic and orthopedic with little mechanical effort realized sensible seating positions.

Landscapes

  • Health & Medical Sciences (AREA)
  • Dentistry (AREA)
  • General Health & Medical Sciences (AREA)
  • Chairs For Special Purposes, Such As Reclining Chairs (AREA)
  • Chair Legs, Seat Parts, And Backrests (AREA)
  • Mattresses And Other Support Structures For Chairs And Beds (AREA)
  • Seats For Vehicles (AREA)
  • Pretreatment Of Seeds And Plants (AREA)
  • Massaging Devices (AREA)
  • Chairs Characterized By Structure (AREA)

Abstract

The item (1) has a pelvic support (9) placed in a rear region of a seat surface (6) and inclined in a front working position in relation to a plane of the seat surface, and a carrying frame (2) to carry the pelvic support and pivotably movable relative to a seat frame (5) and kinematically coupled to the seat frame. A thrust bearing (13) supports the carrying frame in a displaceable and pivotably movable manner, where a carrying element (11) carries the thrust bearing, and a joint (14) connects the carrying frame to the seat frame at a trailing end portion of the seat frame.

Description

Die Erfindung betrifft ein Sitzmöbel mit einem Tragrahmen und einem relativ zu diesem zwischen einer vorderen Arbeitsposition und einer hinteren Ruheposition in einer Schiebeführung verschiebbaren, eine Sitzfläche tragenden Sitzrahmen sowie mit einem relativ zu dem Sitzrahmen schwenkbeweglichen, mit dem Sitzrahmen kinematisch gekoppelten Rahmen für eine Rückenlehne.The invention relates to a chair with a support frame and a relative to this between a front working position and a rear rest position sliding in a sliding guide, a seat supporting seat frame and with a relative to the seat frame pivoting, with the seat frame kinematically coupled frame for a backrest.

Ein derartiges Sitzmöbel wird bereits in der täglichen Praxis, insbesondere im Bürobereich vielfach eingesetzt und zählt somit aufgrund offenkundiger Vorbenutzung zum Stand der Technik. Im Vordergrund steht dabei der ergonomisch sinnvolle Wechsel zwischen Hohl- und Rundrücken beim Sitzen. Insbesondere soll eine Stützung des Rückens in allen Positionen ermöglicht werden. Erreicht wird dies durch eine kinematische Kopplung der Sitzfläche mit der Rückenlehne, die an einem seitlichen Rahmenelement gehalten ist. Dieses Rahmenelement ist in eine Kulissenführung derart geführt, dass die Bewegung von der Arbeitsposition in die hintere Ruheposition zu einer Neigung der Rückenlehne nach hinten und zugleich zu einer Absenkung der Rückenlehne führt. Dabei wird zugleich die Sitzfläche entlang einer im Wesentlichen horizontalen Ebene bewegt.Such a piece of furniture is already widely used in daily practice, especially in the office and is therefore due to obvious prior use of the prior art. The focus is on the ergonomically sensible change between hollow and round backs when sitting. In particular, a back support in all positions should be made possible. This is achieved by a kinematic coupling of the seat with the backrest, which is held on a side frame member. This frame element is guided in a slotted guide such that the movement from the working position into the rear rest position leads to an inclination of the backrest to the rear and at the same time to a lowering of the backrest. At the same time the seat is moved along a substantially horizontal plane.

Darüber hinaus hat die Sitzfläche an ihrem hinteren Ende eine vertikal nach oben gerichtete Abwinkelung, die in der Arbeitsposition parallel vor der Rückenlehne liegt, in der Ruheposition hingegen mit dieser einen spitzen Winkel einschließt. Ein sowohl mit der Rückenlehne als auch mit dieser Abwinklung verbundenes Polster erfährt somit eine zusätzliche Neigung, die von der eigentlichen Rückenlehne abweicht.In addition, the seat has at its rear end a vertical upward bend, which is parallel to the back of the work in the working position, in the rest position, however, with this includes an acute angle. An associated with both the backrest and with this bend pad thus undergoes an additional slope, which differs from the actual backrest.

Die DE 10 2007 012 728 A1 betrifft einen Passagiersitz für Fahrzeuge, insbesondere Bahnfahrzeuge, mit einem Sitzteil und einer Rückenlehne, wobei das Sitzteil gegenüber einem mit der Rückenlehne gemeinsamen Grundrahmen in Sitzteillängsrichtung verschiebbar ist. Dabei wird durch ein Verschieben des Sitzteils nach vorne zeitgleich eine nach hinten gerichtete Auswölbung der Rückenlehne im Lendenwirbelbereich als Unterstützung für eine Kyphosestellung des Rückens erhalten, sodass die gesamte Sitzteilfläche auch weiterhin zur Verfügung steht, obgleich der untere Teil des Rückenlehnenpolsters nach vorne gezogen ist. Ebenso wird bei einem derartigen Passagiersitz durch ein Verschieben des Sitzteils nach hinten zeitgleich eine Verstärkung der Auswölbung der Rückenlehne im Lendenwirbelbereich als verstärkte Lordosestütze erhalten, da das Rückenlehnenpolster im Lendenwirbelbereich einen nach hinten gerichteten Vorsprung bzw. eine Auswölbung aufweist, die dann gegen einen Teil des Grundrahmens im Rückenlehnenbereich drückt und somit eine nach vorne gerichtete Auswölbung des Rückenlehnenpolsters bewirkt.The DE 10 2007 012 728 A1 relates to a passenger seat for vehicles, in particular rail vehicles, with a seat part and a backrest, wherein the seat part relative to a common with the backrest base frame in the seat longitudinal direction is displaceable. In this case, by moving the seat part forward at the same time a rearward bulge of the backrest in the lumbar region is obtained as support for a kyphosis position of the back, so that the entire seat part surface is still available, although the lower part of the backrest cushion is pulled forward. Similarly, in such a passenger seat by moving the seat back to the rear at the same time gaining the bulge of the back in the lumbar region as reinforced lordosis support, since the backrest cushion in the lumbar region has a rearward projection or a bulge, which then against a portion of the base frame presses in the backrest area and thus causes a forward bulge of the backrest cushion.

Die DE 10 2006 056 928 B3 bezieht sich auf einen Sitz mit einer Sitzplatte und einer Rückenlehne, wobei die Sitzplatte mit einer ersten Verbindungseinrichtung mit einer Basiseinrichtung verbunden und in Bezug zur Basiseinrichtung in der Höhe und gleichzeitig in der Neigung und in Sitzlängsrichtung verstellbar ist. Hierdurch bilden die beiden sich seitlich gegenüberliegenden vorderseitigen Verbindungshebel und die beiden sich seitlich gegenüberliegenden rückseitigen Verbindungshebel zwischen der Basiseinrichtung und der Sitzplatte ein Parallelogrammgestänge, wobei durch die Dimensionierungen der vorderseitigen und der rückseitigen Verbindungshebel erreicht wird, dass bei einer Verschwenkung der Verbindungshebel die Sitzplatte in Bezug zur Basiseinrichtung von einer mindestens annähernd horizontalen Stellung in Sitzlängsrichtung nach vorne oben und mit ihrem rückseitigen Teil nach unten verstellt wird. Gleichzeitig wird die Rückenlehne mit ihrem unteren Teil nach vorne und mit ihrem Schulterabschnitt nach hinten verstellt.The DE 10 2006 056 928 B3 relates to a seat with a seat plate and a backrest, wherein the seat plate is connected to a first connecting means with a base means and adjustable with respect to the base means in the height and at the same time in the inclination and in the seat longitudinal direction. As a result, the two laterally opposite front-side connecting lever and the two laterally opposite rear connecting lever between the base device and the seat plate a Parallelogrammgestänge, which is achieved by the dimensions of the front and the rear link, that when pivoting the connecting lever, the seat plate in relation to Base device is moved from an at least approximately horizontal position in the seat longitudinal direction to the top front and with its rear part down. At the same time, the backrest is adjusted with its lower part forward and with its shoulder portion to the rear.

Aus der DE 10 2007 021 782 B3 ist ferner eine Synchronmechanik für Bürostühle bekannt. Dabei ist auf einer Stuhlsäule ein Basisträger platziert, an dem zum einen ein um eine Querachse schwenkbarer, gelenkig mit dem Basisträger verbundener Sitzträger und zum anderen ein ebenfalls um eine Querachse schwenkbarer, gelenkig mit dem Basisträger verbundener Rückenlehnenträger gelagert ist. Sitzträger und Rückenlehnenträger sind derart gelenkig gekoppelt, dass eine Schwenkbewegung der Rückenlehne nach hinten eine Absenkbewegung der Hinterkante des Sitzes nach unten induziert.From the DE 10 2007 021 782 B3 Furthermore, a synchronous mechanism for office chairs is known. In this case, a base support is placed on a chair column, to which on the one hand a pivotable about a transverse axis, hingedly connected to the base support seat carrier and on the other hand a pivotable about a transverse axis, hingedly connected to the base support backrest support is mounted. Seat support and backrest support are coupled so articulated that a pivoting movement of the backrest to the rear induces a downward movement of the rear edge of the seat down.

Bei der DE 36 35 044 A1 ist als Federanordnung eine Druckfeder vorgesehen, die zur Beaufschlagung des Sitzträgers entgegen seiner Schwenkrichtung zwischen dem Basisträger und einem mit dem Sitzträger schwenkbaren Abstützhebel eingespannt ist.In the DE 36 35 044 A1 is provided as a spring arrangement, a compression spring which is clamped for urging the seat support against its pivoting direction between the base support and a pivotable with the seat support support lever.

Auch die DE 199 22 446 A1 betrifft eine Synchronmechanik für eine korrelierte Sitz-Rückenlehnen-Bewegung eines Bürostuhls.Also the DE 199 22 446 A1 relates to a synchronous mechanism for a correlated seat-backrest movement of an office chair.

Ein Sitzmöbel ist auch aus US 4 452 486 bekannt.A seating is also off US 4,452,486 known.

Als nachteilig bei den bisher bekannten Sitzmöbeln der genannten Art hat sich erwiesen, dass die Sitzfläche zwar beweglich ist und auch eine ergonomisch korrekte Relativposition zwischen der Sitzfläche und der Rückenlehne einstellbar ist. Eine sich an diese unterschiedlichen Sitzpositionen selbsttätig anpassende Relativposition einzelner Teilbereiche der Sitzfläche ist dabei jedoch bisher nicht realisiert oder berücksichtigt worden.A disadvantage of the previously known seating furniture of the type mentioned has been proven that the seat is indeed movable and also an ergonomically correct relative position between the seat and the backrest is adjustable. However, a relative position of individual partial areas of the seat, which automatically adapts to these different seating positions, has not yet been realized or taken into consideration.

Der Erfindung liegt die Aufgabe zugrunde, eine Möglichkeit zu schaffen, eine weiter verbesserte, ergonomisch sowie orthopädisch vorteilhafte Sitzposition durch mehrere zueinander bewegliche Elemente der Sitzfläche zu realisieren. Zugleich soll der für die Realisierung erforderliche konstruktive Aufwand vergleichsweise gering gehalten werden.The invention has for its object to provide a way to realize a further improved, ergonomic and orthopedic advantageous sitting position by several mutually movable elements of the seat. At the same time required for the realization of design effort should be kept relatively low.

Diese Aufgabe wird erfindungsgemäß mit einem Sitzmöbel gemäß den Merkmalen des Anspruchs 1 gelöst. Die weitere Ausgestaltung der Erfindung ist den Unteransprüchen zu entnehmen.This object is achieved with a chair according to the features of claim 1. The further embodiment of the invention can be found in the dependent claims.

Erfindungsgemäß ist ein Sitzmöbel vorgesehen, bei dem der Rahmen eine im hinteren Bereich der Sitzfläche angeordnete Beckenstütze trägt, die in der Arbeitsposition gegenüber der Ebene der Sitzfläche geneigt ist, und bei dem sich ein Tragelement des Tragrahmens in den Bereich der Rückenlehne erstreckt und ein Widerlager trägt, an dem der Rahmen verschiebbar und schwenkbeweglich abgestützt ist und der Rahmen an einem hinteren Endabschnitt des Sitzrahmens mit diesem durch ein Gelenk verbunden ist. Die Erfindung geht dabei von der überraschenden Erkenntnis aus, dass nicht lediglich die Ausformung der Rückenlehne oder die Verschiebung der Sitzfläche zu einer ergonomisch sowie orthopädisch vorteilhaften Sitzposition führt, sondern vielmehr die Unterteilung der Sitzfläche in einen größeren vorderen Sitzflächenbereich, welcher zugleich die Hauptsitzfläche bildet, und in einen kleineren hinteren, also der Rückenlehne benachbarten, durch die Beckenstütze gebildeten Bereich eine wesentliche Verbesserung der Sitzhaltung ermöglicht. Während also die Beckenstütze in der Ruheposition keine besondere Stützfunktion entfaltet, tritt diese bei einer Verlagerung der Arbeitsposition hervor, stützt dabei das Becken und übt zugleich eine angenehme Druckbelastung mit einer Wirkrichtung nach vorn aus, sodass das unerwünschte, nach hinten Rutschen des Gesäßbereichs vermieden wird. Zugleich wird dieser äußerst vorteilhafte Effekt auch in technisch vergleichsweise einfacher Weise realisiert, indem nämlich die Beckenstütze mit der Rückenlehne unbeweglich verbunden ist und gemeinsam mit dieser um ein horizontales Gelenk verschwenkt wird, welches sich zwischen dem vorderen Sitzflächenbereich und der Beckenstütze erstreckt. Eine Kulissenführung für den Rahmen ist somit nicht erforderlich. Vielmehr genügt zur Realisierung dieser optimalen Bewegung allein das Gelenk, welches nicht nur die Schwenkbewegung definiert, sondern auch die Schiebebewegung des Benutzers von der Sitzfläche auf den Rahmen überträgt, in Verbindung mit dem Widerlager, an welchem der Rahmen eine überlagerte Schwenk- und Verschiebebewegung durchführt. Hierzu ist das Widerlager in einer Ebene deutlich oberhalb der Sitzfläche angeordnet. Die Beckenstütze kann dabei sowohl einen Stützkörper, welcher ebenso wie die Sitzfläche durch ein gemeinsames Polsterelement abgedeckt ist, als auch ein separates Formteil mit abweichendem Härtegrad aufweisen. Das Gelenk ist dabei beiderseits der Sitzfläche angeordnet und weist eine gemeinsame, physische oder virtuelle Schwenkachse auf. Insbesondere hat das Gelenk lediglich einen einzigen Freiheitsgrad.According to the invention, a chair is provided in which the frame carries a pelvic support arranged in the rear region of the seat, which is inclined in the working position with respect to the plane of the seat, and in which a support element of the support frame extends into the region of the backrest and carries an abutment to which the frame is slidably and pivotally supported and the frame is connected to a rear end portion of the seat frame with the latter by a hinge. The invention is based on the surprising finding that not only the shape of the backrest or the displacement of the seat leads to an ergonomic and orthopedic advantageous seating position, but rather the subdivision of the seat in a larger front seat area, which also forms the main seat, and in a smaller rear, so the backrest adjacent formed by the pelvic support area a significant improvement in sitting position allows. Thus, while the pelvic support in the rest position unfolds no special support function, this occurs in a shift of the working position, while supporting the pelvis and at the same time exerts a pleasant pressure load with a direction of action forward, so that the undesirable, slipping back of the buttocks area is avoided. At the same time this extremely advantageous effect is also realized in a technically relatively simple manner, namely by the pelvic support is immovably connected to the backrest and is pivoted together with this around a horizontal joint, which extends between the front seat area and the pelvic support. A slotted guide for the frame is therefore not required. Rather, for the realization of this optimal movement alone, the joint, which not only defines the pivoting movement, but also transmits the sliding movement of the user of the seat on the frame, in conjunction with the abutment on which the frame performs a superimposed pan and displacement movement. For this purpose, the abutment is arranged in a plane well above the seat. The pelvic support can have both a support body, which as well as the seat is covered by a common cushion element, as well as a separate molded part with deviating degree of hardness. The joint is arranged on both sides of the seat and has a common, physical or virtual pivot axis. In particular, the joint has only a single degree of freedom.

Eine besonders vorteilhafte Ausführungsform wird auch dadurch erreicht, dass die Beckenstütze ausschließlich in ihrer Arbeitsposition gegenüber der Ebene der Sitzfläche nach oben geneigt angeordnet ist. Hierdurch schließt sich also in der Ruheposition die Beckenstütze der Sitzfläche flächenbündig an, sodass diese im Prinzip lediglich vergrößert ist. Bei der Bewegung der Rückenlehne in die vordere Arbeitsposition stellt sich die Beckenstütze auf und entfaltet so vergleichbar mit einem an sich bekannten Keilkissen durch die schräge, nach hinten ansteigende Form die gewünschte Stützfunktion, sodass das Becken und die Lenden automatisch leicht nach vom gekippt werden. Dadurch hebt sich der Brustkorb und die Wirbelsäule wird gestreckt, sodass der Becken- und Lendenwirbelbereich stark entlastet wird. Selbstverständlich kann zusätzlich in der Ruheposition eine abgesenkte Position der Beckenstütze vorgesehen sein. Weiterhin kann auch der Neigungswinkel einstellbar ausgeführt sein. Je nach individueller Vorliebe kann dann die Beckenstütze in der Ruheposition in einer gemeinsamen Ebene mit der Sitzfläche liegen.A particularly advantageous embodiment is also achieved in that the pelvic support is arranged inclined only in its working position relative to the plane of the seat upwards. As a result, in the rest position, the pelvic support of the seat closes flush with the surface, so that it is only enlarged in principle. During the movement of the backrest in the front working position, the pelvic support raises and unfolds the desired support function comparable to a known wedge pillow by the oblique, rising backwards shape, so that the pelvis and the loins are automatically tilted slightly to the. This raises the chest and spine is stretched, so the pelvis and lumbar area is greatly relieved. Of course, additionally a lowered position of the pelvic support may be provided in the rest position. Furthermore, the inclination angle can be made adjustable. Depending on the individual preference, the pelvic support can then lie in the rest position in a common plane with the seat surface.

Eine besonders einfache und zugleich äußerst effektive Ausführungsform wird dann erreicht, wenn die Beckenstütze und die Rückenlehne bei der Bewegung zwischen der Arbeitsposition und der Ruheposition relativ zueinander unbeweglich sind. Somit entfaltet nicht nur die Rückenlehne, sondern auch die Beckenstütze eine den Benutzer des Sitzmöbels nach vor verlagernde Stützwirkung. Damit überkommt die Erfindung das Vorurteil der Fachwelt, wonach ein unveränderlicher Winkel zwischen Sitzfläche und Rückenlehne grundsätzlich zu vermeiden ist.A particularly simple and at the same time highly effective embodiment is achieved when the pelvic support and the backrest are immovable relative to each other in the movement between the working position and the rest position. Thus, not only the backrest, but also the pelvic support unfolds a supporting effect to the user of the chair before. Thus, the invention overcomes the prejudice of the art, according to which a fixed angle between the seat and backrest is to be avoided in principle.

Weiterhin ist es besonders zweckmäßig, wenn die Rückenlehne relativ zu dem Rahmen bei der Bewegung zwischen der Arbeitsposition und der Ruheposition relativ zueinander unbeweglich ist, wohingegen jedoch eine Einstellbarkeit der Rückenlehne relativ zu dem Rahmen, beispielsweise auch in Teilabschnitten zur Erzeugung gewünschter Konturierungen, denkbar und sinnvoll ist.Furthermore, it is particularly useful if the backrest relative to the frame during movement between the working position and the rest position relative to each other is immovable, whereas, however, a adjustability of the backrest relative to the frame, for example, in sections for generating desired contouring, conceivable and useful is.

Der Rahmen hat einerseits einen der Beckenstütze, andererseits der Rückenlehne zugeordneten Bereich. Als besonders einfach erweist sich demgemäß eine Variante, bei welcher der Rahmen ein Winkelelement hat, welches mit seinem ersten Schenkel mit der Rückenlehne und mit seinem weiteren Schenkel mit der Beckenstütze verbunden ist. Sowohl die Rückenlehne als auch die Beckenstütze können an diesem Winkelelement austauschbar angeordnet sein. Insbesondere wird so eine funktionsfähige Mechanik unabhängig von der ästhetischen Gestaltung geschaffen, die eine Vielzahl von Anwendungsgebieten eröffnet.The frame has on the one hand a pelvic support, on the other hand, the backrest associated area. Accordingly, a variant in which the frame has an angle element, which is connected with its first leg to the backrest and with its further leg to the pelvic support, proves to be particularly simple. Both the backrest and the pelvic support may be interchangeable at this angle element. In particular, such a functioning mechanism is created independently of the aesthetic design, which opens up a variety of applications.

Weiterhin wird eine besonders einfache Ausgestaltung der vorliegenden Erfindung dann erreicht, wenn das den Rahmen mit dem Sitzrahmen verbindende Gelenk als ein Scharniergelenk ausgeführt ist, um so mit geringem konstruktiven Aufwand die gewünschte Bewegungsbahn zu realisieren.Furthermore, a particularly simple embodiment of the present invention is achieved when the joint connecting the frame with the seat frame is designed as a hinge joint, so as to realize the desired trajectory with little design effort.

Weiterhin erweist es sich in der Praxis als vorteilhaft, wenn der Tragrahmen einen Anschlag für die Bewegung der Rückenlehne in die Ruheposition bildet, sodass die Rückenlehne in der Ruheposition, in welcher eine erhöhte Last wirkt, nicht lediglich gegen das Widerlager, sondern zusätzlich auch gegen den Anschlag, beispielsweise formschlüssig anliegt. Zudem stabilisiert der sich konturbündig in die Rückseite der Rückenlehne einfügende Anschlag die seitliche Krafteinleitung.Furthermore, it proves to be advantageous in practice, when the support frame forms a stop for the movement of the backrest in the rest position, so that the backrest in the rest position, in which an increased load acts not only against the abutment, but in addition against the Stop, for example, positively abuts. In addition, the stop flush with the back of the seat back stabilizes the lateral force introduction.

Eine andere, ebenfalls besonders Erfolg versprechende Abwandlung wird dadurch geschaffen, dass der Rahmen in einer Führung, insbesondere in einem Profil, seitlich geführt ist, wobei der Rahmen in erster Linie einer unerwünschten seitlichen Verlagerung, also quer zu der Bewegungsrichtung der Sitzfläche, entgegenwirkt. Zudem können auf diese Weise auch wesentliche Lagerelemente gegen äußere Einwirkungen geschützt angeordnet werden. Darüber hinaus kann die Führung auch eine Gleitbahn für den Rahmen bilden, sodass die Führung die Funktion des Widerlagers erfüllt und ein separates Widerlager entfallen kann.Another, also particularly promising modification is created by the fact that the frame is guided laterally in a guide, in particular in a profile, wherein the frame in the first place counteracts an undesirable lateral displacement, ie transversely to the direction of movement of the seat. In addition, in this way, essential bearing elements can be arranged protected against external influences. In addition, the guide can also form a slide for the frame, so that the guide fulfills the function of the abutment and can account for a separate abutment.

Eine besonders vorteilhafte Ausgestaltung der vorliegenden Erfindung wird dann erreicht, wenn das Widerlager in unterschiedlichen Positionen festlegbar ist und so der Abstand des Widerlagers gegenüber der Sitzfläche einstellbar ist. Hierzu kann das Widerlager an einem verstellbaren Flansch angeordnet sein, welcher beispielsweise auch mittels eines Stellmittels werkzeuglos verstellt werden kann. Alternativ kann auch das das Widerlager tragende Tragelement relativ zu dem Tragrahmen einstellbar ausgeführt sein.A particularly advantageous embodiment of the present invention is achieved when the abutment can be fixed in different positions and so the distance of Abutment against the seat is adjustable. For this purpose, the abutment can be arranged on an adjustable flange, which can be adjusted without tools, for example, by means of an actuating means. Alternatively, the supporting element carrying the abutment can also be made adjustable relative to the support frame.

Ein wesentlicher Vorteil der Erfindung besteht auch darin, dass die nach dem Stand der Technik erforderliche aufwendige Anpassung an unterschiedliche Körpergewichte erfindungsgemäß entfällt. Dennoch erweist es sich in der Praxis als wünschenswert, wenn die Sitzfläche und/oder Rückenlehne entgegen der Rückstellkraft eines Federelements in die Ruheposition beweglich ist, sodass das Sitzmöbel bei Entlastung durch den Benutzer selbsttätig seine aufrechte Arbeitsposition einnimmt. Das Federelement kann hierzu als einfache Schraubenfeder ausgeführt und in die Schiebeführung der Sitzfläche integriert werden.An essential advantage of the invention is also that the required according to the prior art complex adaptation to different body weights omitted according to the invention. Nevertheless, it proves to be desirable in practice, when the seat and / or backrest is movable against the restoring force of a spring element in the rest position, so that the seat automatically assumes its upright working position when relieved by the user. The spring element can for this purpose be designed as a simple coil spring and integrated into the sliding guide of the seat.

Das Widerlager kann in einfacher Weise durch eine bloße Anlagefläche gebildet werden. Besonders zweckmäßig ist hingegen eine Abwandlung, bei welcher das Widerlager als Gleit- oder Rollenlager ausgeführt ist und somit zugleich eine Verschiebung des Rahmens an dem Widerlager als auch eine Schwenkbewegung um das Widerlager gestattet. Hierzu eigenen sich neben Kugellagern auch Räder bzw. Rollen, die auch profiliert ausgeführt sein können, ebenso wie Gleitlager, die vorzugsweise eine reibungsmindernde Beschichtung, beispielsweise aus PTFE, aufweisen können.The abutment can be formed in a simple manner by a mere contact surface. Particularly useful, however, is a modification in which the abutment is designed as a sliding or roller bearings and thus at the same time allows a displacement of the frame on the abutment and a pivoting movement about the abutment. For this purpose, in addition to ball bearings also wheels or rollers, which can also be made profiled, as well as plain bearings, which may preferably have a friction-reducing coating, such as PTFE.

Weiterhin zeigt sich eine Weiterbildung als besonders vielversprechend, bei welcher der Sitzrahmen ein vorderes Sitzpolster trägt und der Rahmen ein sich unmittelbar an das vordere Sitzpolster anschließendes Beckenpolster der Beckenstütze trägt, sodass ein ansprechendes und hochwertiges ästhetisches Erscheinungsbild erreicht wird.Furthermore, a further development is particularly promising, in which the seat frame carries a front seat cushion and the frame carries a immediately adjacent to the front seat cushion pelvic support of the pelvic support, so that an attractive and high-quality aesthetic appearance is achieved.

Das Sitzmöbel lässt sich in vielfältiger Form realisieren. Gemäß einer besonders vorteilhaften Ausgestaltung kann das Sitzmöbel als ein Arbeitsstuhl, Bürostuhl, Wartestuhl, beispielsweise im Wartebereich eines Flughafens, Ruhestuhl oder auch als Sitz eines Kraftfahrzeugs, Flugzeugs oder Schienenfahrzeugs, als ein Behandlungsstuhl im medizinischen und therapeutischen Bereich sowie ferner auch als Frisörstuhl oder dergleichen ausgeführt sein, wobei auch reine Ruhesessel mit der erfindungsgemäßen Bewegungskinematik vorteilhaft ausgestattet werden können.The seating furniture can be realized in a variety of forms. According to a particularly advantageous embodiment, the seating can be designed as a work chair, office chair, waiting chair, for example in the waiting area of an airport, resting chair or as a seat of a motor vehicle, aircraft or rail vehicle, as a dental chair in the medical and therapeutic field and also as a barber chair or the like be also pure recliner can be advantageously equipped with the motion kinematics according to the invention.

Die Erfindung lässt verschiedene Ausführungsformen zu. Zur weiteren Verdeutlichung ihres Grundprinzips ist eine davon in der Zeichnung dargestellt und wird nachfolgend beschrieben. Diese zeigt jeweils in einer Prinzipdarstellung in

Fig. 1
eine Seitenansicht eines erfindungsgemäßen Sitzmöbels;
Fig. 2
eine Draufsicht auf einen Tragrahmen sowie ein Drehgestell des in Figur 1 gezeigten Sitzmöbels;
Fig. 3
eine Vorderansicht des in den Figuren 1 und 2 gezeigten Sitzmöbels.
The invention allows for various embodiments. To further clarify its basic principle, one of them is shown in the drawing and will be described below. This shows in each case in a schematic representation in
Fig. 1
a side view of a chair according to the invention;
Fig. 2
a plan view of a support frame and a bogie of in FIG. 1 seat shown;
Fig. 3
a front view of the in the FIGS. 1 and 2 seat shown.

Das erfindungsgemäße Sitzmöbel 1 wird nachstehend anhand der Figuren 1 bis 3 näher erläutert, die das Sitzmöbel 1 aus unterschiedlichen Ansichten zeigen. Zum besseren Verständnis wurde dabei auf die Darstellung von Polsterelementen verzichtet. Das Sitzmöbel 1 hat einen Tragrahmen 2, welcher auf einem an sich bekannten Drehgestell 3 aufgebaut ist. Dieser Tragrahmen 2 trägt einen relativ zu diesem, zwischen einer lediglich gestrichelt dargestellten vorderen Arbeitsposition in einer hinteren Ruheposition in einer Schiebeführung 4 horizontal verschiebbaren Sitzrahmen 5 mit einer lediglich andeutungsweise zu erkennenden Sitzfläche 6. Der in einer Ebene verschiebbare Sitzrahmen 5 ist mit einem relativ zu dem Sitzrahmen 5 und dem Tragrahmen 2 schwenkbeweglichen Rahmen 7 kinematisch gekoppelt. Dieser Rahmen 7 trägt einerseits eine Rückenlehne 8, andererseits auch eine im hinteren Bereich der Sitzfläche 6 angeordneten Beckenstütze 9. Zu diesem Zweck weist der Rahmen 7 ein als Abwinkelung ausgeführtes Rahmenelement 10 auf, welches mit einem ersten Schenkel mit der Rückenlehne 8 und mit einem weiteren Schenkel mit der Beckenstütze 9 verbunden ist. Wie zu erkennen, ist diese Beckenstütze 9 in der Arbeitsposition gegenüber der Ebene der Sitzfläche 6 geneigt und tritt somit gegenüber der Ebene der Sitzfläche 6 hervor, während die Beckenstütze 9 in der Ruheposition gegenüber der Sitzfläche 6 abgesenkt ist. Die für diese Kinematik erforderliche Mechanik umfasst weiterhin ein mit dem Tragrahmen 2 verbundenes Tragelement 11, welches sich bis in den Bereich der Rückenlehne 8 erstreckt und dort mit einem Anschlag 12 für die Ruheposition der Rückenlehne 8 ausgestattet ist. In diesem Bereich ist an dem Tragelement 11 ein Widerlager 13 für den Rahmen 7 bzw. die Rückenlehne 8 angeordnet, welches eine überlagerte Verschiebung sowie Schwenkbewegung ermöglicht und in der dargestellten Variante durch eine Rolle realisiert ist. Der Rahmen 7 ist demnach einerseits an diesem Widerlager 13 abgestützt, andererseits an einem hinteren Endabschnitt des Sitzrahmens 5 mit diesem durch ein als Scharniergelenk ausgeführtes Gelenk 14 verbunden, sodass also eine Neigung der Rückenlehne aus der gestrichelt dargestellten Arbeitsposition in die Ruheposition zu einer Neigung und zugleich zu einer Absenkung der Rückenlehne 8, aber auch zu einer Absenkung der mit der Rückenlehne 8 starr verbundenen Beckenstütze 9 und deren Verlagerung nach vorn führt. Aufgrund der kinematischen Koppelung wird auf diese Weise auch die Sitzfläche 6 nach vom verschoben. Zur individuellen Anpassung ist das Widerlager 13 in unterschiedlichen Positionen entsprechend mehrerer eine Fixierung des Widerlagers 13 wahlweise aufnehmender Ausnehmungen 15 festlegbar, um so den Abstand a des Widerlagers 13 gegenüber der Sitzfläche 6 einstellen zu können Auf diese Weise werden mit geringem mechanischen Aufwand verschiedene ergonomisch und orthopädisch sinnvolle Sitzpositionen realisiert.The seating 1 according to the invention will be described below with reference to the FIGS. 1 to 3 explained in more detail, showing the seating 1 from different views. For better understanding, the depiction of upholstered elements was omitted. The chair 1 has a support frame 2, which is constructed on a known bogie 3. This support frame 2 carries a relative to this, between a dashed only shown front working position in a rear rest position in a sliding guide 4 horizontally displaceable seat frame 5 with only hinted to recognize seat 6. The sliding in a plane seat frame 5 is provided with a relative to the Seat frame 5 and the support frame 2 pivotally movable frame 7 kinematically coupled. This frame 7 carries on the one hand a backrest 8, on the other hand also arranged in the rear region of the seat surface 6 pelvic support 9. For this purpose, the frame 7 is designed as a bending frame member 10, which with a first leg with the backrest 8 and another Leg is connected to the pelvic support 9. As can be seen, this pelvic support 9 is inclined in the working position relative to the plane of the seat surface 6 and thus emerges from the plane of the seat surface 6, while the pelvic support 9 is lowered in the rest position relative to the seat surface 6. The mechanism required for this kinematics furthermore comprises a support element 11 connected to the support frame 2, which extends into the area of the backrest 8 and is equipped there with a stop 12 for the rest position of the backrest 8. In this area, an abutment 13 for the frame 7 or the backrest 8 is arranged on the support element 11, which allows a superimposed displacement and pivoting movement and is realized in the illustrated variant by a roller. The frame 7 is therefore on the one hand supported on this abutment 13, on the other hand connected to a rear end portion of the seat frame 5 with this executed by a hinge joint 14, so therefore an inclination of the backrest from the working position shown in dashed lines in the rest position to a slope and at the same time to a lowering of the backrest 8, but also to a lowering of the rigidly connected to the backrest 8 pelvic support 9 and their displacement leads to the front. Due to the kinematic coupling in this way, the seat 6 after postponed. For individual adaptation, the abutment 13 in different positions corresponding to a plurality of fixation of the abutment 13 selectively receiving recesses 15 can be fixed so as to adjust the distance a of the abutment 13 relative to the seat 6 in this way are different ergonomic and orthopedic with little mechanical effort realized sensible seating positions.

Claims (13)

  1. Item of seating furniture (1) with a carrying frame (2) and a seat frame (5) which is displaceable in a sliding guide (4) relative to the carrying frame between a front working position and a rear resting position and carries a seat surface (6), and also with a frame (7), which is pivotably movable relative to the seat frame (5) and kinematically coupled to the seat frame (5), for a backrest (8), a carrying element (11) of the carrying frame (2) extending into the region of the backrest (8) and carring a thrust bearing (13) on which the frame (7) is supported in a displaceable and pivotably movable manner, the frame (7) being connected, at a trailing end portion of the seat frame (5), to the seat frame by a joint (14), and the frame (7) carrying a pelvic support (9) which is arranged in the rear region of the seat surface (6), characterized in that the pelvic support (9) is designed as a region of the seat surface (6) and is adjacent to the backrest, in that the pelvic support (9) is inclined in the working position in relation to the plane of the seat surface (6), and in that the frame (7) carries, on the one hand, the backrest (8) and, on the other hand, also the pelvic support, which is arranged in the rear region of the seat surface (6).
  2. Item of seating furniture (1) according to Claim 1, characterized in that the pelvic support (9) is arranged in an upwardly inclined manner exclusively in its working position in relation to the plane of the seat surface (6).
  3. Item of seating furniture (1) according to Claim 1 or 2, characterized in that the pelvic support (9) is arranged in the resting position in a common plane with the seat surface (6).
  4. Item of seating furniture (1) according to at least one of the preceding claims, characterized in that the pelvic support (9) and the backrest (8) are immovable relative to each other during the movement between the working position and the resting position.
  5. Item of seating furniture (1) according to at least one of the preceding claims, characterized in that the backrest (8) is immovable relative to the frame (7) during the movement between the working position and the resting position relative to each other.
  6. Item of seating furniture (1) according to at least one of the preceding claims, characterized in that the frame (7) has an angular element which is connected by its first leg to the backrest (8) and by its further leg to the pelvic support (9).
  7. Item of seating furniture (1) according to at least one of the preceding claims, characterized in that the carrying frame (2) forms a stop (12) for the movement of the backrest (8) into the resting position.
  8. Item of seating furniture (1) according to at least one of the preceding claims, characterized in that the frame (7) is guided in a guide, in particular in a profile.
  9. Item of seating furniture (1) according to at least one of the preceding claims, characterized in that the thrust bearing (13) can be secured in different positions.
  10. Item of seating furniture (1) according to at least one of the preceding claims, characterized in that the thrust bearing (13) is designed as a sliding or roller bearing.
  11. Item of seating furniture (1) according to at least one of the preceding claims, characterized in that the seat surface (6) and/or backrest (8) can be moved into the resting position counter to the restoring force of a spring element.
  12. Item of seating furniture (1) according to at least one of the preceding claims, characterized in that the seat frame (5) carries a front seat cushion and the frame (7) carries a pelvic cushion, directly adjoining the front seat cushion, of the pelvic support (9).
  13. Item of seating furniture (1) according to at least one of the preceding claims, characterized in that the item of seating furniture (1) is designed as a working chair, office chair, waiting chair or resting chair.
EP10003772A 2009-04-14 2010-04-08 Seating Active EP2243398B1 (en)

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KR (1) KR101165997B1 (en)
CN (1) CN101862081B (en)
AT (1) ATE526852T1 (en)
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MY145857A (en) 2012-05-03
ATE526852T1 (en) 2011-10-15
DE102009016968A1 (en) 2010-11-04
KR101165997B1 (en) 2012-07-18
AU2010201435A1 (en) 2010-10-28
MX2010004006A (en) 2010-10-20
PL2243398T3 (en) 2012-07-31
EP2243398A1 (en) 2010-10-27
DE102009016968B4 (en) 2012-01-26
IL205088A0 (en) 2010-11-30
TW201036576A (en) 2010-10-16
CN101862081B (en) 2012-10-03
KR20100113992A (en) 2010-10-22
CA2699926C (en) 2013-01-08
CN101862081A (en) 2010-10-20
JP2010246922A (en) 2010-11-04
DK2243398T3 (en) 2012-01-30
US20100259082A1 (en) 2010-10-14
CA2699926A1 (en) 2010-10-14

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