EP1074202B1 - Seating furniture - Google Patents

Seating furniture Download PDF

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Publication number
EP1074202B1
EP1074202B1 EP00116066A EP00116066A EP1074202B1 EP 1074202 B1 EP1074202 B1 EP 1074202B1 EP 00116066 A EP00116066 A EP 00116066A EP 00116066 A EP00116066 A EP 00116066A EP 1074202 B1 EP1074202 B1 EP 1074202B1
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EP
European Patent Office
Prior art keywords
seat frame
seat
lever
lever arm
backrest
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.)
Expired - Lifetime
Application number
EP00116066A
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German (de)
French (fr)
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EP1074202A1 (en
Inventor
Michael Mackert
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.)
Olsberg Hermann Everken GmbH
Original Assignee
Josef Steltemeier GmbH
STELTEMEIER JOSEF GmbH
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Publication date
Application filed by Josef Steltemeier GmbH, STELTEMEIER JOSEF GmbH filed Critical Josef Steltemeier GmbH
Publication of EP1074202A1 publication Critical patent/EP1074202A1/en
Application granted granted Critical
Publication of EP1074202B1 publication Critical patent/EP1074202B1/en
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    • 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
    • A47C1/034—Reclining or easy chairs having coupled concurrently adjustable supporting parts the parts including a leg-rest or foot-rest
    • A47C1/0342—Reclining or easy chairs having coupled concurrently adjustable supporting parts the parts including a leg-rest or foot-rest in combination with movable backrest-seat unit or back-rest

Definitions

  • the invention relates to a piece of seating with one in relation to it Tilt changeable seat frame hinged and opposite the Seat frame swiveling backrest.
  • Such a seating also referred to as a multifunctional armchair known for example from DE 296 00 282 U1.
  • This seating comprises a seat frame on which a backrest is pivotally articulated is.
  • the seat frame is via a parallel link system on the seat frame supported.
  • On the front wishbone of the parallel link system a leg rest is arranged so that when adjusting the seat frame the leg rest swings out from a front position into a rear position.
  • the backrest is independent of the movement of the seat frame pivotable with respect to their inclination to the seat frame. To for this purpose, the backrest is at a point of articulation of the parallel steering system hinged to the seat frame.
  • the parallel steering system in the front area is inclined to the seat frame the seat frame is articulated on the frame side via a toggle joint.
  • An inclination adjustment of the seat frame is done by front Raise the seat frame, this around the rear lower hinge axis of the parallel link system is pivoted.
  • the invention lies on the basis of this prior art discussed therefore the task of a seat with one in relation to its tilt changeable seat frame hinged and opposite to further develop the pivoting backrest of the seat frame, that an adjustment of the seating in its different positions is possible with less effort.
  • the seat frame over one in its middle area between the backrest and the front end of the seat frame arranged tilt axis and over an area arranged in the backrest in the manner of a Lever arrangement acting toggle lever, comprising at least one articulated lever arm connected to the seat frame on the frame of the seat between the through the articulated connection between the seat frame and the at least one lever arm formed hinge axis and the tilt axis is supported and that the backrest on the at least attached a lever arm of the lever assembly and thus accordingly the at least one lever arm can be pivoted relative to the seat frame is.
  • the seat frame of the seating furniture according to the invention on the one hand in its middle Area between the backrest and its front end arranged tilt axis and on the other hand via one in the backrest Lever arrangement arranged in the vicinity, acting like a toggle lever supported on the base of the seating.
  • the seat frame By the rack side Articulation of the seat frame on a in the central area of the Seat frame arranged tilt axis is the seat frame like a Seesaw hung.
  • This suspension of the seat frame is one Inclination adjustment by simply shifting your weight possible sitting on the seat frame without this on Support the floor or the armrests.
  • the seat frame is supported by a lever arrangement that acts like a toggle lever
  • the at least one articulated to the seat frame Lever arm includes, from the frame of the seating. It is provided that the frame-side articulation of the lever arrangement acting like a toggle lever at a point that is between the articulated by the Connection between the seat frame and at least one lever arm formed hinge axis and the tilt axis of the seat frame.
  • the frame-side articulation point is expediently located there Lever arrangement in the area of the first third based on the distance from the mentioned hinge axis to the tilt axis.
  • the frame-side linkage this lever arm can, for example, by intervention of his free end in a guide arranged on the frame.
  • the free end of the Lever arm is articulated to another lever arm which is hinged to the frame.
  • the lever arrangement designed as a toggle.
  • a tilting movement of the seat frame results in both configurations the lever arrangement in a movement of the hinge point between the seat frame and the one lever arm starting from a flat one Seat frame tilt into a stronger seat frame tilt, as is the case with a Rest position is provided on a circular path section around the tilt axis from an upper position of this hinge axis to a lower one.
  • conditioned due to the toggle-like lever arrangement for suspension of the seat frame in the area near the backrest is made accordingly a pivoting of the at least one lever arm.
  • the backrest is attached to this lever arm in the seating furniture according to the invention, so that this also correspondingly with a seat inclination adjustment is pivoted.
  • the seat frame inclination is adjusted accordingly greater or smaller adjustment of the backrest with regard to its inclination, so that the enclosed by the seat frame and the backrest Angle when changing the inclination of the seat frame also changes.
  • the seating is adjusted from its seating position in a rest position it is provided that the backrest and the included angle of the seat frame increases.
  • the seat frame is not only a seat position adjustment a shift in weight with respect to the tilt axis of the seat frame, but also by exerting a slight one against the backrest directed pressure or by a combination of these operations possible.
  • the inclination of the backrest is expediently adjusted from a sitting position to a lowered rest position against the force a gas pressure spring.
  • a gas pressure spring When converting the seating furniture from the rest position can then be stored in the gas pressure spring in the sitting position Be used in a supportive manner. Show gas pressure springs a non-linear characteristic curve in which the compression necessary Force increases exponentially with increasing compression.
  • Seating furniture 1 comprises a seat frame equipped with a cushion 2 3 and a backrest 4.
  • the seat frame 3 and the backrest 4 are with a fitting plate arranged on a side cheek of the seating furniture 1 5 of the otherwise not shown frame of the seating 1 articulated.
  • the seating 1 also includes an extendable, attached to the seat frame 3 leg rest 6, which in the figures in is shown in its extended position and in its inserted Position on a telescopic guide under the seat frame 3 in
  • Frame of the seating 1 is stowable.
  • An actuation of the leg rest 6 takes place by means of a lever linkage, the operating lever 7 of which is shown in FIG. 1 is recognizable.
  • the seating furniture 1 shown is a so-called multifunctional armchair, which can be brought into different seating positions.
  • the seat frame 3 is different with respect to its seat inclination and the inclination of the backrest 4 and the seat angle enclosed by the backrest 4 and the seat frame 3, depending on the sitting position.
  • the seat frame 3 is articulated on the frame side in the region of its center in relation to its extension from the backrest 4 to its front end 8 via a tilting axis K on the fitting plate 5.
  • the seat frame 3 is also supported on the frame side via a toggle lever arrangement 9 provided in the backrest area of the seat frame 3.
  • the toggle lever arrangement 9 consists of a first lever arm 10 which is articulated at one end to the seat frame 3 and the free end of which is articulated to a second lever arm 11 articulated on the frame.
  • the hinge axis formed by the lever arm 10 with the seat frame 3 is designated by the reference symbol G 1 in the figures.
  • the further articulation points of the toggle lever arrangement 9 are identified by the reference symbols G 2 and G 3 .
  • the toggle lever arrangement 9 is arranged with respect to the position of its hinge axis G 2 and G 3 such that the hinge axis G 3 on the frame side is approximately vertically below the hinge point G 2 when the seating furniture 1 is between its sitting position and its rest position. In this arrangement, the hinge axis G 2 is moved on a very short circular path section in the region of the dead center around the hinge axis G 3 .
  • the lever arm 10 articulated on the seat frame 3 is part of a backrest fitting 12, to which the actual backrest 4 is attached.
  • the backrest 4 is arranged at right angles to the lever arm 10 in the embodiment shown in the figures.
  • one end of a gas pressure spring 13 engages the backrest fitting 12.
  • the point of application of the gas pressure spring 13 on the backrest fitting 12 is identified by the reference number 14.
  • the backrest fitting 12 has a lever extension 15, on the free end of which the point of engagement 14 is arranged.
  • the gas pressure spring 13 is articulated with its other end on the frame side on the fitting plate 5 into the point identified by the reference number 16.
  • an actuating device 18 comprising an operating lever 17 for actuating the gas pressure spring 13.
  • a seat adjustment from the sitting position to the rest position The seat 1 is therefore virtually without effort and only by consciously leaning the upper body against the back locked backrest 4 possible.
  • the successive lowering of the Backrest 4 becoming increasingly larger, on the gas pressure spring 13 Acting lever ensures that the movement increases counteracting force counteracted by the gas pressure spring 13 is.
  • the toggle lever arrangement K for the kinematic coupling of the Tilting movement of the seat frame 3 and the pivoting movement of the Backrest 4 also causes the resulting distance between the bordering on the upholstery 2 in the seating position of the seating furniture 1 Back cushion 19 much less when pivoting the backrest 4 is in the rest position of the seat 1, as in one sole pivoting of the backrest 4 without a simultaneous lowering would be the case in the area of the seat frame 3 near the backrest. For a user, this has a positive effect in that a otherwise the outer clothing hardly slips anymore is noticeable.
  • a tension spring that can be set up with regard to its tension can be provided his.
  • a tension spring that can be set up with regard to its tension can be provided his.
  • Corresponding can be an adjustment to the weight of a seat user respectively.
  • a reset of the seat 1 from its rest position in his Seated position is achieved by operating the control lever 17 and by slightly leaning forward so that supported by the in the gas pressure spring 13 stored force the backrest 4 in the sitting position pivoted and at the same time the seat frame 3 about the tilt axis K is brought into the inclination of the sitting position.

Landscapes

  • Health & Medical Sciences (AREA)
  • Dentistry (AREA)
  • General Health & Medical Sciences (AREA)
  • Chair Legs, Seat Parts, And Backrests (AREA)
  • Chairs For Special Purposes, Such As Reclining Chairs (AREA)
  • Surgical Instruments (AREA)
  • Massaging Devices (AREA)
  • Mattresses And Other Support Structures For Chairs And Beds (AREA)

Abstract

The seat frame (3) has a tip axis (K) in its central area between the back rest (4) and the front side termination (8) of the frame and a lever arrangement (9) of the elbow lever type in the area near to the back rest. The lever arrangement has at least one lever arm (10) articulatedly connected with the seat frame. The lever arrangement has two lever arms (10,11). The arm (10) linked to the seat frame at its free end in relation to the linkage with the seat frame is linked to the furniture frame via a further lever arm (11).

Description

Die Erfindung betrifft ein Sitzmöbel mit einer an einem bezüglich seiner Neigung veränderbaren Sitzrahmen angelenkten und gegenüber dem Sitzrahmen verschwenkbaren Rückenlehne.The invention relates to a piece of seating with one in relation to it Tilt changeable seat frame hinged and opposite the Seat frame swiveling backrest.

Ein derartiges, auch als Multifunktionssessel bezeichnetes Sitzmöbel ist beispielsweise aus der DE 296 00 282 U1 bekannt. Dieses Sitzmöbel umfaßt einen Sitzrahmen, an dem schwenkbar eine Rückenlehne angelenkt ist. Der Sitzrahmen ist über ein Parallellenkersystem am Sitzgestell abgestützt. An dem vorderen Querlenker des Parallellenkersystems ist eine Beinauflage angeordnet, so daß bei einer Sitzrahmenverstellung aus einer vorderen Position in eine hintere Position die Beinauflage ausschwenkt. Unabhängig von der Bewegung des Sitzrahmens ist die Rükkenlehne bezüglich ihrer Neigung zum Sitzrahmen verschwenkbar. Zu diesem Zweck ist die Rückenlehne in einem Gelenkpunkt des Paratlellenkersystems am Sitzrahmen angelenkt. Zur Erzielung einer Änderung der Neigung des Sitzrahmens ist das Parallellenkersystem im vorderen Bereich des Sitzrahmens über ein Kniehebelgelenk gestellseitig angelenkt. Eine Neigungsverstellung des Sitzrahmens erfolgt somit durch vorderseitiges Anheben des Sitzrahmens, wobei dieser um die hintere untere Gelenkachse des Parallellenkersystems geschwenkt wird.Such a seating, also referred to as a multifunctional armchair known for example from DE 296 00 282 U1. This seating comprises a seat frame on which a backrest is pivotally articulated is. The seat frame is via a parallel link system on the seat frame supported. On the front wishbone of the parallel link system a leg rest is arranged so that when adjusting the seat frame the leg rest swings out from a front position into a rear position. The backrest is independent of the movement of the seat frame pivotable with respect to their inclination to the seat frame. To for this purpose, the backrest is at a point of articulation of the parallel steering system hinged to the seat frame. To achieve a change in The parallel steering system in the front area is inclined to the seat frame the seat frame is articulated on the frame side via a toggle joint. An inclination adjustment of the seat frame is done by front Raise the seat frame, this around the rear lower hinge axis of the parallel link system is pivoted.

Auch wenn mit diesem bekannten Sitzmöbel eine Vielzahl unterschiedlicher Sitzpositionen eingenommen werden können, hat sich gezeigt, daß zum Betätigen des Sitzmöbels um von einer Sitzstellung in eine andere zu gelangen, der notwendige Kraftaufwand mitunter zu groß ist. Überdies hat sich gezeigt, daß eine Rückenlehnenverstellung unabhängig von einer Sitzrahmenneigungsverstellung nicht unbedingt gefordert ist.Even if with this known seating furniture a variety of different Sitting positions can be taken, it has been shown that to actuate the seating furniture to move from one sitting position to another reach, the necessary effort is sometimes too great. Moreover, has It has been shown that a backrest adjustment is independent of one Seat frame tilt adjustment is not absolutely required.

Ausgehend von diesem diskutierten Stand der Technik liegt der Erfindung daher die Aufgabe zugrunde, ein Sitzmöbel mit einer an einem bezüglich seiner Neigung veränderbaren Sitzrahmen angelenkten und gegenüber dem Sitzrahmen verschwenkbaren Rückenlehne dergestalt weiterzubilden, daß eine Verstellung des Sitzmöbels in seine unterschiedlichen Positionen mit einer geringeren Kraftaufwendung möglich ist.The invention lies on the basis of this prior art discussed therefore the task of a seat with one in relation to its tilt changeable seat frame hinged and opposite to further develop the pivoting backrest of the seat frame, that an adjustment of the seating in its different positions is possible with less effort.

Diese Aufgabe wird erfindungsgemäß dadurch gelöst, daß der Sitzrahmen über eine in seinem mittleren Bereich zwischen der Rückenlehne und dem vorderseitigen Abschluß des Sitzrahmens angeordnete Kippachse und über eine im Rückenlehnen nahen Bereich angeordnete nach Art eines Kniehebels wirkende Hebelanordnung, umfassend zumindest einen gelenkig mit dem Sitzrahmen verbundenen Hebelarm am Gestell des Sitzmöbels zwischen der durch die gelenkige Verbindung zwischen dem Sitzrahmen und dem zumindest einen Hebelarm gebildeten Gelenkachse und der Kippachse abgestützt ist und daß die Rückenlehne an dem zumindest einen Hebelarm der Hebelanordnung befestigt und somit entsprechend dem zumindest einen Hebelarm gegenüber dem Sitzrahmen verschwenkbar ist.This object is achieved in that the seat frame over one in its middle area between the backrest and the front end of the seat frame arranged tilt axis and over an area arranged in the backrest in the manner of a Lever arrangement acting toggle lever, comprising at least one articulated lever arm connected to the seat frame on the frame of the seat between the through the articulated connection between the seat frame and the at least one lever arm formed hinge axis and the tilt axis is supported and that the backrest on the at least attached a lever arm of the lever assembly and thus accordingly the at least one lever arm can be pivoted relative to the seat frame is.

Im Unterschied zum vorbekannten Stand der Technik ist der Sitzrahmen des erfindungsgemäßen Sitzmöbels einerseits über eine in seinem mittleren Bereich zwischen der Rückenlehne und seinem vorderseitigen Abschluß angeordnete Kippachse und andererseits über eine im Rückenlehnen nahen Bereich angeordnete, nach Art eines Kniehebels wirkende Hebelanordnung am Untergestell des Sitzmöbels abgestützt. Durch die gestellseitige Anlenkung des Sitzrahmens an einer im mittleren Bereich des Sitzrahmens angeordnete Kippachse ist der Sitzrahmen nach Art einer Wippe aufgehängt. Durch diese Aufhängung des Sitzrahmens ist eine Neigungsverstellung bereits durch eine bloße Gewichtsverlagerung einer auf dem Sitzrahmen sitzenden Person möglich, ohne daß sich diese am Boden oder an den Armlehnen abstützen muß. Im Bereich der Rückenlehne stützt sich der Sitzrahmen über eine kniehebelartig wirkende Hebelanordnung, die zumindest einen gelenkig mit dem Sitzrahmen verbundenen Hebelarm umfaßt, am Gestell des Sitzmöbels ab. Dabei ist vorgesehen, daß die gestellseitige Anlenkung der kniehebelartig wirkenden Hebelanordnung in einem Punkt erfolgt, der zwischen der durch die gelenkige Verbindung zwischen dem Sitzrahmen und zumindest einen Hebelarm gebildeten Gelenkachse und der Kippachse des Sitzrahmens liegt. Zweckmäßigerweise befindet sich der gestellseitige Anlenkpunkt dieser Hebelanordnung im Bereich des ersten Drittels bezogen auf den Abstand von der genannten Gelenkachse zur Kippachse. Die gestellseitige Anlenkung dieses Hebelarmes kann beispielsweise durch ein Eingreifen seines freien Endes in eine am Gestell angeordnete Führung erfolgen.In contrast to the prior art, the seat frame of the seating furniture according to the invention on the one hand in its middle Area between the backrest and its front end arranged tilt axis and on the other hand via one in the backrest Lever arrangement arranged in the vicinity, acting like a toggle lever supported on the base of the seating. By the rack side Articulation of the seat frame on a in the central area of the Seat frame arranged tilt axis is the seat frame like a Seesaw hung. This suspension of the seat frame is one Inclination adjustment by simply shifting your weight possible sitting on the seat frame without this on Support the floor or the armrests. In the area of the backrest the seat frame is supported by a lever arrangement that acts like a toggle lever, the at least one articulated to the seat frame Lever arm includes, from the frame of the seating. It is provided that the frame-side articulation of the lever arrangement acting like a toggle lever at a point that is between the articulated by the Connection between the seat frame and at least one lever arm formed hinge axis and the tilt axis of the seat frame. The frame-side articulation point is expediently located there Lever arrangement in the area of the first third based on the distance from the mentioned hinge axis to the tilt axis. The frame-side linkage this lever arm can, for example, by intervention of his free end in a guide arranged on the frame.

In einer weiteren Ausgestaltung ist vorgesehen, daß das freie Ende des Hebelarmes gelenkartig mit einem weiteren Hebelarm verbunden ist, der am Gestell angelenkt ist. In dieser Ausgestaltung ist die Hebelanordnung als Kniehebel ausgebildet.In a further embodiment it is provided that the free end of the Lever arm is articulated to another lever arm which is hinged to the frame. In this embodiment, the lever arrangement designed as a toggle.

Eine Kippbewegung des Sitzrahmens resultiert in beiden Ausgestaltungen der Hebelanordnung in einer Bewegung des Gelenkpunktes zwischen dem Sitzrahmen und dem einen Hebelarm ausgehend von einer flachen Sitzrahmenneigung in eine stärkere Sitzrahmenneigung, wie dies bei einer Ruhestellung vorgesehen ist, auf einem Kreisbahnabschnitt um die Kippachse von einer oberen Position dieser Gelenkachse in eine untere. Bedingt durch die kniehebelartig wirkende Hebelanordnung zur Aufhängung des Sitzrahmens im Rückenlehnen nahen Bereich erfolgt entsprechend eine Verschwenkung des zumindest einen Hebelarmes. Die Rückenlehne ist bei dem erfindungsgemäßen Sitzmöbel an diesem Hebelarm befestigt, so daß diese bei einer Sitzneigungsverstellung ebenfalls entsprechend verschwenkt wird. Somit ist eine Verstellung des Sitzrahmens bezüglich ihrer Neigung und eine Verstellung der Rückenlehne bezüglich ihrer Neigung sowie auch bezüglich des zwischen der Rückenlehne und dem Sitzrahmen gebildeten Winkels kinematisch gekoppelt. Entsprechend der Übersetzung der kniehebelartigen Anlenkung des zumindest einen Hebelarmes erfolgt bei einer Sitzrahmenneigungsverstellung eine entsprechend größere oder kleinere Verstellung der Rückenlehne bezüglich ihrer Neigung, so daß der durch den Sitzrahmen und die Rückenlehne eingeschlossene Winkel sich bei einer Neigungsveränderung des Sitzrahmens ebenfalls ändert. Bei einer Verstellung des Sitzmöbels aus seiner Sitzstellung in eine Ruhestellung ist vorgesehen, daß der durch Rückenlehne und dem Sitzrahmen eingeschlossene Winkel sich vergrößert.A tilting movement of the seat frame results in both configurations the lever arrangement in a movement of the hinge point between the seat frame and the one lever arm starting from a flat one Seat frame tilt into a stronger seat frame tilt, as is the case with a Rest position is provided on a circular path section around the tilt axis from an upper position of this hinge axis to a lower one. conditioned due to the toggle-like lever arrangement for suspension of the seat frame in the area near the backrest is made accordingly a pivoting of the at least one lever arm. The backrest is attached to this lever arm in the seating furniture according to the invention, so that this also correspondingly with a seat inclination adjustment is pivoted. This is an adjustment of the seat frame their inclination and an adjustment of the backrest with respect to their inclination as well as regarding that between the backrest and the seat frame formed angle kinematically coupled. According to the Translation of the toggle-like articulation of the at least one lever arm the seat frame inclination is adjusted accordingly greater or smaller adjustment of the backrest with regard to its inclination, so that the enclosed by the seat frame and the backrest Angle when changing the inclination of the seat frame also changes. When the seating is adjusted from its seating position in a rest position it is provided that the backrest and the included angle of the seat frame increases.

Durch die kinematische Kopplung der Rückenlehnenstellung an die Neigung des Sitzrahmens ist eine Sitzpositionsverstellung nicht nur durch eine Gewichtsverlagerung bezüglich der Kippachse des Sitzrahmens, sondern auch durch Ausüben eines geringen, gegen die Rückenlehne gerichteten Druckes oder durch eine Kombination dieser Betätigungen möglich.Through the kinematic coupling of the backrest position to the inclination the seat frame is not only a seat position adjustment a shift in weight with respect to the tilt axis of the seat frame, but also by exerting a slight one against the backrest directed pressure or by a combination of these operations possible.

Zweckmäßigerweise erfolgt eine Verstellung der Neigung der Rückenlehne aus einer Sitzstellung in eine abgesenkte Ruhestellung gegen die Kraft einer Gasdruckfeder. Beim Rückwandeln des Sitzmöbels aus der Ruhestellung in die Sitzstellung kann dann die in der Gasdruckfeder gespeicherte Kraft unterstützend eingesetzt werden. Gasdruckfedem weisen eine nicht lineare Kennlinie auf, bei der sich die zur Kompression notwendige Kraft mit zunehmender Kompression exponentiell erhöht. Durch die Anlenkung der Gasdruckfeder an der Rückenlehne, wobei zweckmäßigerweise der Anlenkpunkt in einer Ebene unterhalb der Schwenkachse der Rückenlehnen nahen Hebelanordnung vorgesehen ist, wirkt diese Anlenkung dieser Eigenschaft insofern entgegen, daß bei zunehmender Neigung der Rückenlehne sukzessive die Hebelwirkung des eingesetzten Körpergewichtes und auch das Eigengewicht der Rückenlehne stärker zum Tragen kommt, so daß eine Verstellung des Sitzmöbels aus seiner Sitzstellung in seine Ruhestellung über den gesamten Verstellbereich hinweg nutzerseitig als mit gleicher Kraft betätigbar empfunden wird.The inclination of the backrest is expediently adjusted from a sitting position to a lowered rest position against the force a gas pressure spring. When converting the seating furniture from the rest position can then be stored in the gas pressure spring in the sitting position Be used in a supportive manner. Show gas pressure springs a non-linear characteristic curve in which the compression necessary Force increases exponentially with increasing compression. Through the Articulation of the gas pressure spring on the backrest, expediently the articulation point in a plane below the swivel axis the lever arrangement close to the backrest is provided, this acts Articulation of this property to the extent that with increasing Inclination of the backrest successively the leverage of the inserted Body weight and also the weight of the backrest stronger comes into play, so that an adjustment of the seating from his Sitting position in its rest position over the entire adjustment range is perceived by the user as being operable with the same force.

Weitere Ausgestaltungen und Vorteile der Erfindung sind Bestandteil weiterer Unteransprüche sowie der nachfolgenden Beschreibung eines Ausführungsbeispieles unter Bezugnahme auf die beigefügten Figuren. Es zeigen:

Fig. 1:
eine schematisierte Seitenansicht eines Sitzmöbels in der Sitzstellung und
Fig. 2:
das Sitzmöbel der Figur 1 in seiner Ruhestellung.
Further refinements and advantages of the invention form part of further subclaims and the following description of an exemplary embodiment with reference to the attached figures. Show it:
Fig. 1:
a schematic side view of a piece of furniture in the sitting position and
Fig. 2:
the seating of Figure 1 in its rest position.

Ein Sitzmöbel 1 umfaßt einen mit einem Polster 2 bestückten Sitzrahmen 3 und eine Rückenlehne 4. Der Sitzrahmen 3 und die Rückenlehne 4 sind mit einer an einer Seitenwange des Sitzmöbels 1 angeordneten Beschlagplatte 5 des ansonsten nicht näher dargestellten Gestell des Sitzmöbels 1 gelenkig verbunden. Das Sitzmöbel 1 umfaßt ferner eine ausziehbare, am Sitzrahmen 3 befestigte Beinauflage 6, die in den Figuren in ihrer ausgezogenen Stellung gezeigt ist und in ihrer eingeschobenen Stellung über eine teleskopartige Führung unter dem Sitzrahmen 3 im Seating furniture 1 comprises a seat frame equipped with a cushion 2 3 and a backrest 4. The seat frame 3 and the backrest 4 are with a fitting plate arranged on a side cheek of the seating furniture 1 5 of the otherwise not shown frame of the seating 1 articulated. The seating 1 also includes an extendable, attached to the seat frame 3 leg rest 6, which in the figures in is shown in its extended position and in its inserted Position on a telescopic guide under the seat frame 3 in

Gestell des Sitzmöbels 1 verstaubar ist. Eine Betätigung der Beinauflage 6 erfolgt mittels eines Hebelgestänges, dessen Bedienhebel 7 in Figur 1 erkennbar ist.Frame of the seating 1 is stowable. An actuation of the leg rest 6 takes place by means of a lever linkage, the operating lever 7 of which is shown in FIG. 1 is recognizable.

Bei dem dargestellten Sitzmöbel 1 handelt es sich um einen sogenannte Multifunktionssessel, der in unterschiedliche Sitzstellungen bringbar ist. Zu diesem Zweck ist der Sitzrahmen 3 bezüglich seiner Sitzneigung und die Neigung der Rückenlehne 4 sowie der durch die Rückenlehne 4 und den Sitzrahmen 3 eingeschlossene Sitzwinkel in Abhängigkeit von der Sitzstellung unterschiedlich. Der Sitzrahmen 3 ist im Bereich seiner Mitte bezogen auf seine Erstreckung von der Rückenlehne 4 bis hin zu seinem vorderen Abschluß 8 über eine Kippachse K an der Beschlagplatte 5 gestellseitig angelenkt. Der Sitzrahmen 3 stützt sich zudem über eine im Rückenlehnen nahen Bereich des Sitzrahmens 3 vorgesehene Kniehebelanordnung 9 gestellseitig ab. Die Kniehebelanordnung 9 besteht aus einem ersten Hebelarm 10, der an seinem einen Ende gelenkig mit dem Sitzrahmen 3 verbunden ist und dessen freies Ende gelenkig mit einem zweiten gestellseitig angelenkten Hebelarm 11 verbunden ist. Die durch den Hebelarm 10 mit dem Sitzrahmen 3 gebildete Gelenkachse ist in den Figuren mit dem Bezugszeichen G1 bezeichnet. Die weiteren Gelenkpunkte der Kniehebelanordnung 9 sind mit den Bezugszeichen G2 bzw. G3 gekennzeichnet.The seating furniture 1 shown is a so-called multifunctional armchair, which can be brought into different seating positions. For this purpose, the seat frame 3 is different with respect to its seat inclination and the inclination of the backrest 4 and the seat angle enclosed by the backrest 4 and the seat frame 3, depending on the sitting position. The seat frame 3 is articulated on the frame side in the region of its center in relation to its extension from the backrest 4 to its front end 8 via a tilting axis K on the fitting plate 5. The seat frame 3 is also supported on the frame side via a toggle lever arrangement 9 provided in the backrest area of the seat frame 3. The toggle lever arrangement 9 consists of a first lever arm 10 which is articulated at one end to the seat frame 3 and the free end of which is articulated to a second lever arm 11 articulated on the frame. The hinge axis formed by the lever arm 10 with the seat frame 3 is designated by the reference symbol G 1 in the figures. The further articulation points of the toggle lever arrangement 9 are identified by the reference symbols G 2 and G 3 .

Die Kniehebelanordnung 9 ist bezüglich der Lage ihrer Gelenkachse G2 und G3 dergestalt angeordnet, daß sich die gestellseitige Gelenkachse G3 etwa vertikal unterhalb des Gelenkpunktes G2 befindet, wenn sich das Sitzmöbel 1 zwischen seiner Sitzstellung und seiner Ruhestellung befindet. In dieser Anordnung wird die Gelenkachse G2 auf einem sehr kurzen Kreisbahnabschnitt im Bereich des Totpunktes um die Gelenkachse G3 bewegt.The toggle lever arrangement 9 is arranged with respect to the position of its hinge axis G 2 and G 3 such that the hinge axis G 3 on the frame side is approximately vertically below the hinge point G 2 when the seating furniture 1 is between its sitting position and its rest position. In this arrangement, the hinge axis G 2 is moved on a very short circular path section in the region of the dead center around the hinge axis G 3 .

Bei beiden Betätigungsrichtungen sind somit gleiche Kräfte aufzubringen, um die Kniehebelanordnung 9 zu betätigen.The same forces must therefore be applied in both directions of actuation, to operate the toggle lever assembly 9.

Der am Sitzrahmen 3 angelenkte Hebelarm 10 ist Bestandteil eines Rükkenlehnenbeschlages 12, an dem die eigentliche Rückenlehne 4 befestigt ist. Die Rückenlehne 4 ist bei dem in den Figuren dargestellten Ausführungsbeispiel rechtwinklig zu dem Hebelarm 10 angeordnet. Im unteren Bereich des Rückenlehnenbeschlages 12 unterhalb des gestellseitigen Gelenkpunktes G3 der Kniehebelanordnung 9 greift an den Rückenlehnenbeschlag 12 das eine Ende einer Gasdruckfeder 13 an. Der Angriffspunkt der Gasdruckfeder 13 an dem Rückenlehnenbeschlag 12 ist mit dem Bezugszeichen 14 gekennzeichnet. Zur Vergrößerung des von der Rückenlehne 4 bzw. des Rückenlehnenbeschlages 12 auf die Gasdruckfeder 13 ausgeübten Hebels weist der Rückenlehnenbeschlag 12 einen Hebelfortsatz 15 auf, an dessen freiem Ende der Angriffspunkt 14 angeordnet ist. Die Gasdruckfeder 13 ist mit ihrem anderen Ende gestellseitig am der Beschlagplatte 5 in den mit dem Bezugszeichen 16 gekennzeichneten Punkt angelenkt. An diesem Ende der Gasdruckfeder 13 befindet sich auch eine einen Bedienhebel 17 umfassende Betätigungseinrichtung 18 zum Betätigen der Gasdruckfeder 13.The lever arm 10 articulated on the seat frame 3 is part of a backrest fitting 12, to which the actual backrest 4 is attached. The backrest 4 is arranged at right angles to the lever arm 10 in the embodiment shown in the figures. In the lower region of the backrest fitting 12 below the articulation point G 3 of the toggle lever arrangement 9, one end of a gas pressure spring 13 engages the backrest fitting 12. The point of application of the gas pressure spring 13 on the backrest fitting 12 is identified by the reference number 14. To enlarge the lever exerted by the backrest 4 or the backrest fitting 12 on the gas pressure spring 13, the backrest fitting 12 has a lever extension 15, on the free end of which the point of engagement 14 is arranged. The gas pressure spring 13 is articulated with its other end on the frame side on the fitting plate 5 into the point identified by the reference number 16. At this end of the gas pressure spring 13 there is also an actuating device 18 comprising an operating lever 17 for actuating the gas pressure spring 13.

Bei einer gewünschten Veränderung der Sitzstellung des Sitzmöbels 1 aus seiner in Figur 1 gezeigten Sitzstellung in seine in Figur 2 gezeigte Ruhestellung wird zunächst zur Freigabe einer Bewegung der Bedienhebel 17 zum Betätigen die Gasdruckfeder 13 betätigt, so daß eine Verschwenkung des Sitzrahmens 3 um die Kippachse K und eine gleichzeitige Verschwenkung der Rückenlehne 4 gegenüber dem Sitzrahmen 3 möglich ist. Durch die durch die Kniehebelanordnung 9 bewirkte kinematische Kopplung zwischen dem Sitzrahmen 3 und der Rückenlehne 4 erfolgt eine solche Sitzverstellung entweder durch Erhöhen des auf den rükkenlehnennahen Bereich des Sitzrahmens 3 wirkenden Gewichtes eines Benutzers oder durch Aufbringen eines geringen, gegen die Rückenlehne 4 gerichteten Druckes oder durch eine Kombination dieser beiden Betätigungsmomente. Eine Sitzverstellung aus der Sitzstellung in die Ruhestellung des Sitzmöbels 1 ist daher quasi ohne Kraftaufwand und lediglich durch ein bewußtes Nach-hinten-Lehnen des Oberkörpers gegen die nicht arretierte Rückenlehne 4 möglich. Der beim sukzessiven Absenken der Rückenlehne 4 zunehmend größer werdende, auf die Gasdruckfeder 13 wirkende Hebel gewährleistet, daß der bei dieser Bewegung zunehmend größer werdenden Gegenkraft durch die Gasdruckfeder 13 entgegengewirkt ist. Die Kniehebelanordnung K zur kinematischen Kopplung der Kippbewegung des Sitzrahmens 3 und der Abschwenkbewegung der Rückenlehne 4 bewirkt ferner, daß der sich einstellende Abstand zwischen dem in der Sitzstellung des Sitzmöbels 1 an das Polster 2 grenzenden Rückenpolster 19 wesentlich geringer beim Verschwenken der Rükkenlehne 4 in die Ruhestellung des Sitzmöbels 1 ist, als dies bei einem alleinigen Verschwenken der Rückenlehne 4 ohne ein gleichzeitiges Absenken im rückenlehnennahen Bereich des Sitzrahmens 3 der Fall wäre. Für einen Benutzer macht sich dies insofern positiv bemerkbar, da ein sich ansonsten einstellendes Verrutschen der Oberbekleidung kaum mehr spürbar ist.If you want to change the seating position of the seating 1 from its sitting position shown in FIG. 1 to its shown in FIG. 2 Rest position is first to release a movement of the control lever 17 actuated to operate the gas pressure spring 13 so that a pivoting of the seat frame 3 about the tilt axis K and a simultaneous Swiveling the backrest 4 relative to the seat frame 3 is possible. The kinematic effect caused by the toggle lever arrangement 9 Coupling between the seat frame 3 and the backrest 4 takes place such a seat adjustment either by increasing the on the backrest near Area of the seat frame 3 acting weight one User or by applying a small, against the backrest 4 directed pressure or by a combination of these two actuation torques. A seat adjustment from the sitting position to the rest position The seat 1 is therefore virtually without effort and only by consciously leaning the upper body against the back locked backrest 4 possible. The successive lowering of the Backrest 4 becoming increasingly larger, on the gas pressure spring 13 Acting lever ensures that the movement increases counteracting force counteracted by the gas pressure spring 13 is. The toggle lever arrangement K for the kinematic coupling of the Tilting movement of the seat frame 3 and the pivoting movement of the Backrest 4 also causes the resulting distance between the bordering on the upholstery 2 in the seating position of the seating furniture 1 Back cushion 19 much less when pivoting the backrest 4 is in the rest position of the seat 1, as in one sole pivoting of the backrest 4 without a simultaneous lowering would be the case in the area of the seat frame 3 near the backrest. For a user, this has a positive effect in that a otherwise the outer clothing hardly slips anymore is noticeable.

In der in Figur 2 gezeigten Ruhestellung des Sitzmöbels 1 wird deutlich, daß die Beinauflage 6 entsprechend dem Sitzrahmen 3 um die Kippachse K verkippt ist, so daß die Lage der auf der Beinauflage 6 ruhenden Beine eines Benutzers zwischen der Sitzstellung und der Ruhestellung unverändert bleiben kann.In the rest position of the seating furniture 1 shown in FIG. 2, it becomes clear that that the leg rest 6 corresponding to the seat frame 3 about the tilt axis K is tilted so that the position of the legs resting on the leg rest 6 of a user between the sitting position and the rest position unchanged can stay.

Parallel zur Wirkung der in den Figuren dargestellten Gasdruckfeder 13 kann eine bezüglich ihrer Zugspannung einrichtbare Zugfeder vorgesehen sein. Mit einer solchen Einrichtung kann die zum Ändern der Stellung des Sitzmöbels 1 notwendige Betätigungskraft eingestellt werden. Entsprechend kann eine Einstellung in Anpassung an das Gewicht eines Sitzmöbelnutzers erfolgen.Parallel to the action of the gas pressure spring 13 shown in the figures a tension spring that can be set up with regard to its tension can be provided his. With such a device can change the position of the Seating 1 necessary operating force can be set. Corresponding can be an adjustment to the weight of a seat user respectively.

Eine Rückstellung des Sitzmöbels 1 aus seiner Ruhestellung in seine Sitzstellung erfolgt durch erneutes Betätigen des Bedienhebels 17 und durch geringfügiges Nach-vorne-Neigen, so daß unterstützt durch die in der Gasdruckfeder 13 gespeicherte Kraft die Rückenlehne 4 in die Sitzstellung verschwenkt und gleichzeitig der Sitzrahmen 3 um die Kippachse K in die Neigung der Sitzstellung gebracht wird.A reset of the seat 1 from its rest position in his Seated position is achieved by operating the control lever 17 and by slightly leaning forward so that supported by the in the gas pressure spring 13 stored force the backrest 4 in the sitting position pivoted and at the same time the seat frame 3 about the tilt axis K is brought into the inclination of the sitting position.

Aus der Beschreibung der Erfindung wird deutlich, daß bei dem erfindungsgemäßen Sitzmöbel in besonders geschickter Weise das vorhandene Gewicht bzw. die vorhandene Gewichtsverteilung eines Sitzmöbelnutzers eingesetzt wird, um das Sitzmöbel in unterschiedliche Stellungen zu bringen. Dazu trägt insbesondere auch die gewichtsausgeglichene Aufhängung des Sitzrahmens verglichen mit vorbekannten gattungsgemäßen Sitzmöbeln bei. From the description of the invention it is clear that in the invention Seating furniture in a particularly clever way the existing Weight or the existing weight distribution of a seat user is used to move the seating in different positions bring. The weight-balanced suspension also contributes to this of the seat frame compared to known generic Seating at.

Zusammenstellung der BezugszeichenCompilation of the reference symbols

11
Sitzmöbelseating
22
Sitzpolsterseat cushion
33
Sitzrahmenseat frame
44
Rückenlehnebackrest
55
Beschlagplattefitting plate
66
Beinauflageleg rest
77
Bedienhebeloperating lever
88th
Vorderer AbschlußFront end
99
KniehebelanordnungToggle assembly
1010
Hebelarmlever arm
1111
Hebelarmlever arm
1212
RückenlehnenbeschlagBackrests fitting
1313
GasdruckfederGas spring
1414
Angriffspunktattackpoint
1515
HebelfortsatzLever extension
1616
Angriffspunktattackpoint
1717
Bedienhebeloperating lever
1818
Betätigungseinrichtungactuator
1919
Rückenpolsterback pad
KK
Kippachsetilt axis
G1 - G3 G 1 - G 3
Gelenkachsenjoint axes

Claims (6)

  1. Seat, having a seat back (4), which is articulated on a seat frame (3), which is able to be altered with respect to its inclination, and can be pivoted relative to the seat frame (3), characterised in that the seat frame (3) is supported via a tilting axis (K), which is disposed in the central region of said seat frame between the seat back (4) and the front-side end (8) of the seat frame (3), and via a lever arrangement (9), which is disposed in the region near the seat back operating in the manner of an articulated lever and comprises at least one lever arm (10), which is connected in an articulated manner to the seat frame (3), on the mounting of the seat (1) between the articulated axis (G1), which is formed by the articulated connection between the seat frame (3) and the at least one lever arm (10), and the tilting axis (K), and in that the seat back (4) is attached to the at least one lever arm (10) of the lever arrangement (9) and hence can be pivoted correspondingly to the at least one lever arm (10) relative to the seat frame (3).
  2. Seat according to claim 1, characterised in that the at least one lever arm engages in a guide of the mounting by its end which is free relative to the articulation of the seat frame.
  3. Seat according to claim 1, characterised in that the lever arrangement (9) comprises two lever arms (10, 11) and the lever arm (10), which is articulated on the seat frame (3), is articulated on the mounting on the end of said lever arm, which is free relative to the articulation of the seat frame (3), via a further lever arm (11).
  4. Seat according to claim 3, characterised in that the mounting-side articulation point (G3) of the further lever arm (11) is disposed approximately vertically below the articulation point (G2), which is formed by the connection of the two lever arms (10, 11), when the seat (1) is situated between its sitting position and its reclining position.
  5. Seat according to one of the claims 1 to 4, characterised in that the inclination of the seat back (4) can be adjusted from the sitting position into a reclining position in opposition to the force of a gas pressure spring (13).
  6. Seat according to claim 5, characterised in that the gas pressure spring (13) engages at a point, which is disposed in a plane below the pivoting axis of the lever arrangement (9), by one end of said gas pressure spring on the mounting side and by the other end of said gas pressure spring on the at least one lever arm (10) of the lever arrangement (9).
EP00116066A 1999-07-31 2000-07-27 Seating furniture Expired - Lifetime EP1074202B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE29913405U DE29913405U1 (en) 1999-07-31 1999-07-31 Seating
DE29913405U 1999-07-31

Publications (2)

Publication Number Publication Date
EP1074202A1 EP1074202A1 (en) 2001-02-07
EP1074202B1 true EP1074202B1 (en) 2003-12-10

Family

ID=8076919

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00116066A Expired - Lifetime EP1074202B1 (en) 1999-07-31 2000-07-27 Seating furniture

Country Status (6)

Country Link
EP (1) EP1074202B1 (en)
AT (1) ATE255833T1 (en)
DE (2) DE29913405U1 (en)
DK (1) DK1074202T3 (en)
ES (1) ES2209727T3 (en)
PT (1) PT1074202E (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102014118538B4 (en) 2014-12-12 2023-02-23 Hans Segmüller Polstermöbelfabrik GmbH & Co. KG Seating furniture with extendable footrest
EP4302653A1 (en) * 2022-07-04 2024-01-10 Motion SpA Improved structure for a relax armchair

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2909213A (en) * 1956-03-12 1959-10-20 Res Interests Ltd Reclining chairs
US3065026A (en) * 1960-07-20 1962-11-20 Anton Lorenz Reclining chair of the multiple position type
DE8100974U1 (en) * 1981-01-17 1988-07-07 Himolla Polstermöbelwerk GmbH, 8252 Taufkirchen Adjustable seat-lounger chair
DE29600282U1 (en) 1996-01-09 1996-02-29 COR Wohn- und Büromöbel Helmut Lübke GmbH & Co, 33378 Rheda-Wiedenbrück Sitting and reclining furniture

Also Published As

Publication number Publication date
ATE255833T1 (en) 2003-12-15
ES2209727T3 (en) 2004-07-01
PT1074202E (en) 2004-04-30
DE29913405U1 (en) 1999-11-11
DE50004700D1 (en) 2004-01-22
DK1074202T3 (en) 2004-04-13
EP1074202A1 (en) 2001-02-07

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