EP3965617B1 - Seating furniture having dual-motor wall-away function - Google Patents

Seating furniture having dual-motor wall-away function Download PDF

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Publication number
EP3965617B1
EP3965617B1 EP20750574.4A EP20750574A EP3965617B1 EP 3965617 B1 EP3965617 B1 EP 3965617B1 EP 20750574 A EP20750574 A EP 20750574A EP 3965617 B1 EP3965617 B1 EP 3965617B1
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EP
European Patent Office
Prior art keywords
seat part
relative
seating furniture
adjustment
linear actuator
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
EP20750574.4A
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German (de)
French (fr)
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EP3965617A1 (en
Inventor
Michael Schuster
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M Schuster Patentverwertungs GmbH
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M Schuster Patentverwertungs GmbH
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Publication of EP3965617A1 publication Critical patent/EP3965617A1/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
    • A47C1/022—Reclining or easy chairs having independently-adjustable supporting parts
    • 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
    • A47C1/035—Reclining or easy chairs having coupled concurrently adjustable supporting parts the parts including a leg-rest or foot-rest in combination with movably coupled seat and back-rest, i.e. the seat and back-rest being movably coupled in such a way that the extension mechanism of the foot-rest is actuated at least by the relative movements of seat and backrest
    • A47C1/0355—Reclining or easy chairs having coupled concurrently adjustable supporting parts the parts including a leg-rest or foot-rest in combination with movably coupled seat and back-rest, i.e. the seat and back-rest being movably coupled in such a way that the extension mechanism of the foot-rest is actuated at least by the relative movements of seat and backrest actuated by linkages, e.g. lazy-tongs mechanisms
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47C—CHAIRS; SOFAS; BEDS
    • A47C7/00—Parts, details, or accessories of chairs or stools
    • A47C7/002—Chair or stool bases
    • 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
    • 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
    • A47C1/0345—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 characterised by foot-rests actuated by lazy-tongs
    • 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
    • A47C1/035—Reclining or easy chairs having coupled concurrently adjustable supporting parts the parts including a leg-rest or foot-rest in combination with movably coupled seat and back-rest, i.e. the seat and back-rest being movably coupled in such a way that the extension mechanism of the foot-rest is actuated at least by the relative movements of seat and backrest
    • 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
    • A47C1/036—Reclining or easy chairs having coupled concurrently adjustable supporting parts the parts including a head-rest
    • A47C1/037—Reclining or easy chairs having coupled concurrently adjustable supporting parts the parts including a head-rest in combination with a leg-rest or foot-rest
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47C—CHAIRS; SOFAS; BEDS
    • A47C7/00—Parts, details, or accessories of chairs or stools
    • A47C7/02—Seat parts
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47C—CHAIRS; SOFAS; BEDS
    • A47C7/00—Parts, details, or accessories of chairs or stools
    • A47C7/36—Support for the head or the back
    • A47C7/40—Support for the head or the back for the back
    • A47C7/46—Support for the head or the back for the back with special, e.g. adjustable, lumbar region support profile; "Ackerblom" profile chairs
    • A47C7/462—Support for the head or the back for the back with special, e.g. adjustable, lumbar region support profile; "Ackerblom" profile chairs adjustable by mechanical means
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47C—CHAIRS; SOFAS; BEDS
    • A47C7/00—Parts, details, or accessories of chairs or stools
    • A47C7/50—Supports for the feet or the legs coupled to fixed parts of the chair
    • A47C7/506—Supports for the feet or the legs coupled to fixed parts of the chair of adjustable type
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47C—CHAIRS; SOFAS; BEDS
    • A47C7/00—Parts, details, or accessories of chairs or stools
    • A47C7/50—Supports for the feet or the legs coupled to fixed parts of the chair
    • A47C7/506—Supports for the feet or the legs coupled to fixed parts of the chair of adjustable type
    • A47C7/5066—Supports for the feet or the legs coupled to fixed parts of the chair of adjustable type by rotation
    • A47C7/5068—Supports for the feet or the legs coupled to fixed parts of the chair of adjustable type by rotation actuated by linkages
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47C—CHAIRS; SOFAS; BEDS
    • A47C7/00—Parts, details, or accessories of chairs or stools
    • A47C7/56—Parts or details of tipping-up chairs, e.g. of theatre chairs
    • A47C7/58—Hinges, e.g. for mounting chairs in a curved row

Definitions

  • the invention relates to a piece of seating furniture with a chassis, a seat part that can be pivoted in terms of inclination, a back part that can be swiveled relative to the seat part, and a foot part that can be swiveled out and is connected to the seat part via at least one foot part adjustment mechanism, with the seating furniture being adjusted from an upright sitting position to a Lying position, the seat part is shifted forward relative to the chassis, the foot part being pivoted in the sitting position essentially below the seat part and being pivoted out in front of the seat part in the lying position in such a way that the seat part is extended by the foot part.
  • the present invention relates to seating furniture in which the backrest can be pivoted without a wall and which is therefore also colloquially referred to as sofas with a wall-away function.
  • a first adjustment step the seat part is pushed forwards and the rear area of the seat part is lowered and the front area of the seat part is raised, so that the seat part is adjusted in inclination relative to the sitting position, in this first, also known as the "lounge position". designated intermediate position of the chair, the footboard is not yet extended.
  • a second adjustment step the foot part is extended in front of the seat part without further adjustment of the seat part, whereby a second intermediate position, also referred to as a "relaxation position", is reached.
  • the seat part is then pushed further forward and the back part is pivoted into a lying position synchronously with the movement.
  • EP3143902A1 two linear actuators required, with a foot part linear actuator between the seat part and the Foot section adjustment gear and a back section linear actuator between the seat section and the chassis, whereby, during the adjustment of the seating furniture from the sitting to the lying position, the back section linear actuator is first actuated in an electronically controlled sequence in order to incline the seat section adjust and thus create a greater distance from the front edge of the seat part to the ground in order to be able to extend the longest possible foot part.
  • the foot part linear actuator is then actuated in order to extend the foot part. Only after the foot section has been fully extended is the back section linear actuator operated using the electronic control unit in order to adjust the angle of the backrest.
  • the disadvantage here is that due to the electronically controlled adjustment process, it is not possible for the user to adjust the back part and the foot part independently of one another, despite the use of two linear actuators.
  • the length of the foot part would then be restricted, since when the foot part is adjusted, it would then have to pass the floor even in a seat part position that was not adjusted in inclination.
  • the invention is based on the object of further developing a piece of seating furniture of the generic type in such a way that, when using two linear actuators for adjusting the seat part, the back part and the foot part with two intermediate positions located between the sitting and the lying position according to the pamphlet EP3143902A1 , the back part and the foot part can be adjusted independently of each other without having to limit the length of the foot part.
  • the features according to the invention make it possible to provide a piece of seating furniture of the generic type which ensures that the back part and the foot part can be adjusted independently of one another and that the back part and the seat part can also be adjusted independently of one another.
  • the foot part is not limited in length and can be the same length as that of the EP3143902A1 have known seating furniture.
  • the foot part linear actuator between the foot part adjustment mechanism and a cross strut that is guided so that it can be displaced both relative to the chassis and relative to the seat part
  • the back part linear actuator acts between the chassis and the cross strut that is guided so that it can be displaced both relative to the chassis and relative to the seat part
  • an electronic control system such as that shown in FIG EP3143902A1 known, can be dispensed with without restricting the length of the foot part.
  • a piece of seating furniture 1 consists of a chassis 5, a seat part 3, a back part 4 connected to the seat part 3 and/or the chassis 5 via at least one back part adjustment mechanism 2, and a swing-out foot part 6, with the seating furniture item 1 between an in figure 1 shown seating position and an in figure 8 shown lying position is pivotable.
  • the foot part 6 is connected to the seat part 3 via at least one foot part adjusting mechanism 9, preferably in the form of at least five four-bar linkage chains arranged one behind the other.
  • the foot part adjustment mechanism 9 has a first 25 and a second 26 articulated lever each articulated on the seat part 3, with at least one of the first 25 and the second articulated lever 26 having a stop element 24 which, during the pivoting movement of the foot part 6, comes into contact with a stop surface of one with the front area of the seat part 3 connected seat part strap 27 comes into contact.
  • the back part adjusting mechanism 2 has a fastening plate 20 firmly connected to the seat part 3 with an adjusting lever 21 articulated thereon, which is also connected to the chassis 5 via a first connecting lever 22 and to the back part 4 via a second connecting lever 23 .
  • the seat part 3 can be displaced relative to the chassis 5 by means of a first 10 and a second displacement unit 11 from a sitting position displaced towards the rear edge of the seating furniture 1 into a lying position displaced towards the front edge of the seating furniture 1 and the inclination can be adjusted.
  • front edge of the seat and “rear edge of the seat” refer to the perspective of a person sitting on the seat with their legs pointing forward and their back pointing back.
  • the first displacement unit 10 has a swivel guide, with a front 7 and a rear link lever 8 forming a four-bar linkage chain with the seat part 3 and an intermediate support 14 connected to the second displacement unit 11 .
  • the pivoting movement of the first displacement unit 10 in the direction of the front edge of the chair 1 is blocked by a stop element 18 on the seat part side.
  • the second displacement unit 11 is formed by a linear or an approximately linear guide system, preferably by a lever adjustment mechanism 16 articulated on the chassis 5 or by a rack and pinion mechanism or by sliding blocks or rollers that can be moved in a form-fitting manner in a C-profile, with the guide system, starting from the Sitting position of the chair 1, along a path of movement relative to the chassis 5 is movable forward, wherein the path of movement is preferably linear and / or the path of movement increases in the forward direction.
  • the first 10 and the second displacement unit 11 are attached to one another, with the intermediate carrier 14 being articulated on two pivoting levers 28 of the lever adjustment mechanism 16, as a result of which the first displacement unit 10 is guided in a displaceable manner relative to the chassis 5.
  • the first displacement unit 10 is subjected to a force by means of a tension spring 17 .
  • the tension spring 17 is preferably coupled to the seat part 3 on the one hand and preferably to the intermediate carrier 14 of the first displacement unit 10 on the other hand.
  • a first linear actuator 12 is coupled to the chassis 5 at a first end and to the first displacement unit 10 at a second end via a first cross brace 15 connected to the intermediate carrier 14 of the first displacement unit 10 .
  • the first transverse strut 15 is guided in a displaceable manner both relative to the chassis 5 and relative to the seat part 3 .
  • a second linear actuator 13 is coupled at a first end to the first cross brace 15 and at a second end to the foot part adjustment gear 9 via a second cross brace 19 connected to the foot part adjustment gear 9 .
  • the first linear actuator 12 which is articulated between the chassis 5 and the first crossbar 15, holds the second displacement unit 11 in its starting position, as well as the second linear actuator acting between the first 15 and the second crossbar 19 13, the foot part 6 is held in the pivoted-in end position by means of the stop element 24 acting between the seat part bracket 27 and the foot part adjusting mechanism 9, and the first displacement unit 10 is held in place by the defined position of the foot part 6 and by means of the second linear actuator 13 is defined in its pivoting position ( 1 , 2 ).
  • the second linear actuator 13 When actuated, the second linear actuator 13 generates a linear stroke consisting of at least a first and a second partial stroke, whereby in a first adjustment step of the seating furniture item 1 caused by the first partial stroke of the second linear actuator 13 from the sitting to the lying position, the seat part 3 is moved by means of the first displacement unit 10 is pushed forward and the rear area of the seat part 3 is lowered and the front area of the seat part 3 is raised, so that the seat part 3 is adjusted in inclination relative to the sitting position of the piece of seating furniture 1 until the rear link lever 8 of the first displacement unit 10 comes into contact with the stop element 18 on the seat part side and the pivoting movement of the first displacement unit 10 is thereby blocked.
  • the foot part 6 is not yet extended ( 3 , 4 , 5 ).
  • the tension spring 17 shortens during this first adjustment step and thereby supports the adjustment movement of the seat part 3, as a result of which the seat part 3 is adjusted first without the foot part 6 pivoting relative to the seat part 3 ( 3 , 4 , 5 ).
  • the front edge of the seat part 3 is at a greater distance from the support plane of the seating furniture item 1 than when the seating furniture item 1 is in the sitting position, as a result of which a greater pivoting space is made available for the foot part 6, which extends after this first intermediate position has been reached, and thus the use of a longer foot part 6 is made possible.
  • the further advantage of this first intermediate position of the chair 1 is the possibility for the user to assume a more relaxed sitting position than the seated position of the chair 1 without the foot part 6 already extending.
  • the foot part 6 is first retracted until the stop element 24 comes into contact with the stop surface of the seat part bracket 27, and then the seat part 3 against the spring force of the Tension spring 17 adjusted to the starting position.
  • a linear stroke generated by actuation of the first linear actuator 12 causes a third adjustment step of the seating furniture item 1 from the sitting to the lying position, whereby during this adjustment step, the position of the foot part 6 relative to the seat part 3 is shifted by means of the lever adjustment mechanism 16 of the seat part 3 relative to the chassis 5 forward and a pivoting of the back part 4 relative to the seat part 3 coupled with the displacement movement of the seat part 3 takes place ( 8 , 9 ).
  • All of the aforementioned adjustment steps effected by the first 12 and the second linear actuator 13 can be carried out separately and in any order or, if necessary, simultaneously, with an adjustment of the back part 4 and the foot part 6 to be actuated independently of one another and an adjustment of the back part 4 and the seat part 3 is guaranteed, so that in every adjustment position of the seat part 3 or the foot part 6, a smooth adjustment of the back part 4 is possible in any desired pivoting position and in every adjustment position of the back part 4 the seat part 3 or the foot part 6 in any desired Position can be pivoted.
  • a chair 1 of the present invention allows many more, the comfort of the chair 1 increasing adjustment combinations of the seat part 3, the foot part 6 and the back part 4, for example, as in the Figures 10a, 10b shown, in the case of a seat part 3 that is not or only partially adjusted in inclination, the back part 4 can be adjusted relative to the seat part 3 without a wall.

Description

Die Erfindung betrifft ein Sitzmöbel mit einem Chassis, einem in der Neigung verschwenkbaren Sitzteil, einem gegenüber dem Sitzteil verschwenkbaren Rückenteil und einem über wenigstens ein Fußteil-Verstellgetriebe an das Sitzteil angeschlossenen, ausschwenkbaren Fußteil, wobei zur Verstellung des Sitzmöbels von einer aufrechten Sitz- in eine Liegeposition das Sitzteil relativ zum Chassis nach vorne verschoben wird, wobei das Fußteil in der Sitzposition im Wesentlichen unterhalb des Sitzteiles eingeschwenkt ist und in der Liegeposition derart vor das Sitzteil ausgeschwenkt ist, dass das Sitzteil durch das Fußteil verlängert wird.The invention relates to a piece of seating furniture with a chassis, a seat part that can be pivoted in terms of inclination, a back part that can be swiveled relative to the seat part, and a foot part that can be swiveled out and is connected to the seat part via at least one foot part adjustment mechanism, with the seating furniture being adjusted from an upright sitting position to a Lying position, the seat part is shifted forward relative to the chassis, the foot part being pivoted in the sitting position essentially below the seat part and being pivoted out in front of the seat part in the lying position in such a way that the seat part is extended by the foot part.

Insbesondere betrifft die vorliegende Erfindung solche Sitzmöbel, bei welchen die Rückenlehne wandfrei verschwenkt werden kann und die daher umgangssprachlich auch als Sofas mit Wallaway-Funktion bezeichnet werden. Das bedeutet, dass beim Verschwenken in eine Liegeposition die Rückenlehne zusammen mit dem Sitzteil gegenüber dem Chassis nach vorne wandert, so dass die Rückenlehne in jeder Schwenkposition die Hinterkante des Sitzmöbels nicht oder nur unwesentlich überragt.In particular, the present invention relates to seating furniture in which the backrest can be pivoted without a wall and which is therefore also colloquially referred to as sofas with a wall-away function. This means that when swiveling into a reclining position, the backrest moves forward together with the seat part relative to the chassis, so that the backrest does not or only slightly protrudes beyond the rear edge of the chair in any swiveling position.

Bei einem gattungsgemäßen Sitzmöbel aus der Druckschrift EP3143902A1 ist ein Ablauf der Verstellfunktion von Sitzteil, Rückenteil und Fußteil mit zwei zwischen der Sitz- und der Liegeposition befindlichen Zwischenpositionen bekannt.In a generic seating furniture from the publication EP3143902A1 a sequence of the adjustment function of the seat part, back part and foot part with two intermediate positions located between the sitting and the lying position is known.

Hierbei wird in einem ersten Verstellschritt das Sitzteil nach vorne verschoben und dabei der hintere Bereich des Sitzteiles abgesenkt und der vordere Bereich des Sitzteiles angehoben, so dass das Sitzteil gegenüber der Sitzposition in der Neigung verstellt wird, wobei in dieser ersten, auch als "Loungeposition" bezeichneten Zwischenposition des Sitzmöbels das Fußteil noch nicht ausgefahren ist.In a first adjustment step, the seat part is pushed forwards and the rear area of the seat part is lowered and the front area of the seat part is raised, so that the seat part is adjusted in inclination relative to the sitting position, in this first, also known as the "lounge position". designated intermediate position of the chair, the footboard is not yet extended.

In einem zweiten Verstellschritt wird das Fußteil vor das Sitzteil ausgefahren ohne eine weitere Verstellung des Sitzteiles, womit eine zweite, auch als "Relaxposition" bezeichnete Zwischenposition erreicht ist.In a second adjustment step, the foot part is extended in front of the seat part without further adjustment of the seat part, whereby a second intermediate position, also referred to as a "relaxation position", is reached.

In einem dritten Verstellschritt wird dann das Sitzteil weiter nach vorne verschoben und dabei das Rückenteil bewegungssynchron in eine Liegeposition verschwenkt.In a third adjustment step, the seat part is then pushed further forward and the back part is pivoted into a lying position synchronously with the movement.

Zur Erzielung der genannten Bewegungsabläufe sind gemäß der EP3143902A1 zwei Linearaktuatoren erforderlich, wobei ein Fußteil-Linearaktuator zwischen dem Sitzteil und dem Fußteil-Verstellgetriebe und ein Rückenteil-Linearaktuator zwischen dem Sitzteil und dem Chassis wirkt, wobei, während der Verstellung des Sitzmöbels von der Sitz- in die Liegeposition, in einem elektronisch geregelten Ablauf zunächst der Rückenteil-Linearaktuator betätigt wird um das Sitzteil in der Neigung zu verstellen und damit einen größeren Abstand der Vorderkante des Sitzteiles zum Boden zu schaffen, um ein möglichst langes Fußteil ausfahren zu können.To achieve the movements mentioned are according to EP3143902A1 two linear actuators required, with a foot part linear actuator between the seat part and the Foot section adjustment gear and a back section linear actuator between the seat section and the chassis, whereby, during the adjustment of the seating furniture from the sitting to the lying position, the back section linear actuator is first actuated in an electronically controlled sequence in order to incline the seat section adjust and thus create a greater distance from the front edge of the seat part to the ground in order to be able to extend the longest possible foot part.

Nach diesem Verstellschritt wird dann der Fußteil-Linearaktuator betätigt um das Fußteil auszufahren. Erst nachdem das Fußteil vollständig ausgefahren wurde, wird wiederum der Rückenteil-Linearaktuator mithilfe der elektronischen Steuerung betätigt um die Rückenlehne in der Neigung zu verstellen.After this adjustment step, the foot part linear actuator is then actuated in order to extend the foot part. Only after the foot section has been fully extended is the back section linear actuator operated using the electronic control unit in order to adjust the angle of the backrest.

Nachteilig hierbei ist, dass es aufgrund des elektronisch geregelten Verstellblaufs trotz der Verwendung von zwei Linearaktuatoren für den Benutzer nicht möglich ist, das Rückenteil und das Fußteil unabhängig voneinander zu verstellen.The disadvantage here is that due to the electronically controlled adjustment process, it is not possible for the user to adjust the back part and the foot part independently of one another, despite the use of two linear actuators.

Sofern auf die genannte elektronische Steuerung verzichtet würde, wäre dann die Fußteillänge eingeschränkt, da bei einer Verstellung des Fußteiles dieses dann auch in einer nicht in der Neigung verstellten Sitzteilposition am Boden vorbeikommen müsste.If the aforementioned electronic control were dispensed with, the length of the foot part would then be restricted, since when the foot part is adjusted, it would then have to pass the floor even in a seat part position that was not adjusted in inclination.

Ausgehend vom geschilderten Stand der Technik liegt der Erfindung die Aufgabe zugrunde, ein Sitzmöbel der gattungsgemäßen Art dahingehend weiterzubilden, dass, bei Verwendung von zwei Linearaktuatoren zur Verstellung des Sitzteiles, des Rückenteiles und des Fußteiles mit zwei zwischen der Sitz- und der Liegeposition befindlichen Zwischenpositionen gemäß der Druckschrift EP3143902A1 , das Rückenteil und das Fußteil unabhängig voneinander verstellt werden können ohne dass dabei die Länge des Fußteiles eingeschränkt werden muss.Based on the prior art described, the invention is based on the object of further developing a piece of seating furniture of the generic type in such a way that, when using two linear actuators for adjusting the seat part, the back part and the foot part with two intermediate positions located between the sitting and the lying position according to the pamphlet EP3143902A1 , the back part and the foot part can be adjusted independently of each other without having to limit the length of the foot part.

Die genannte Aufgabe wird erfindungsgemäß durch ein Sitzmöbel mit zweimotoriger Wallaway-Funktion mit den im Patentanspruch 1 aufgeführten Merkmalen gelöst.The stated object is achieved according to the invention by a piece of seating furniture with a two-motor wall-away function having the features listed in patent claim 1 .

Durch die erfindungsgemäßen Merkmale ist es möglich, ein Sitzmöbel der gattungsgemäßen Art zur Verfügung zu stellen, welches eine voneinander unabhängig zu betätigende Verstellung des Rückenteiles und des Fußteiles und zusätzlich eine voneinander unabhängig zu betätigende Verstellung des Rückenteiles und des Sitzteiles gewährleistet.The features according to the invention make it possible to provide a piece of seating furniture of the generic type which ensures that the back part and the foot part can be adjusted independently of one another and that the back part and the seat part can also be adjusted independently of one another.

Dabei ist in jeder Verstellposition des Fußteiles oder des Sitzteiles eine wandfreie Verstellung des Rückenteiles in jede gewünschte Schwenkposition möglich, und in jeder Verstellposition des Rückenteiles kann das Fußteil oder das Sitzteil in jede gewünschte Position verschwenkt werden.In each adjustment position of the foot part or the seat part, a wall-free adjustment of the back part into any desired pivoting position is possible, and in every adjustment position of the back part, the foot part or the seat part can be pivoted into any desired position become.

Das Fußteil wird dabei nicht in der Länge eingeschränkt und kann die gleiche Länge wie bei dem aus der EP3143902A1 bekannten Sitzmöbel aufweisen.The foot part is not limited in length and can be the same length as that of the EP3143902A1 have known seating furniture.

Dabei wirkt gemäß der vorliegenden Erfindung im Unterschied zu dem aus der EP3143902A1 bekannten Sitzmöbel der Fußteil-Linearaktuator zwischen dem Fußteil-Verstellgetriebe und einer sowohl relativ zum Chassis als auch relativ zum Sitzteil verlagerbar geführten Querstrebe und der Rückenteil-Linearaktuator wirkt zwischen dem Chassis und der sowohl relativ zum Chassis als auch relativ zum Sitzteil verlagerbar geführten Querstrebe.It acts according to the present invention in contrast to that of the EP3143902A1 known seating furniture, the foot part linear actuator between the foot part adjustment mechanism and a cross strut that is guided so that it can be displaced both relative to the chassis and relative to the seat part, and the back part linear actuator acts between the chassis and the cross strut that is guided so that it can be displaced both relative to the chassis and relative to the seat part.

Hierbei wird bei Betätigung des Fußteil-Linearaktuators ein erster, linearer Teilhub erzeugt und dadurch zunächst das Sitzteil nach vorne verschoben und gleichzeitig in der Neigung verstellt.In this case, when the footrest linear actuator is actuated, a first, linear partial stroke is generated, and as a result, the seat part is initially pushed forward and the inclination adjusted at the same time.

Bei weiterer Betätigung des Fußteil-Linearaktuators wird ein zweiter, linearer Teilhub erzeugt und dadurch das Fußteil ausgefahren.If the foot section linear actuator is actuated further, a second, linear partial stroke is generated and the foot section is extended as a result.

Aufgrund des bei Betätigung des Fußteil-Linearaktuators stattfindenden, erfindungsgemäßen Verstellablaufes, bei welchem zunächst eine Neigungsverstellung des Sitzteiles und erst danach ein Ausfahren des Fußteiles erfolgt, kann auf eine elektronische Steuerung, wie aus der EP3143902A1 bekannt, verzichtet werden ohne dabei die Fußteillänge zu beschränken.Due to the adjustment process according to the invention, which takes place when the foot part linear actuator is actuated, in which first a tilt adjustment of the seat part and only then an extension of the foot part takes place, an electronic control system, such as that shown in FIG EP3143902A1 known, can be dispensed with without restricting the length of the foot part.

Des Weiteren werden aufgrund der voneinander unabhängig zu betätigenden Verstellung des Rückenteiles und des Fußteiles/Sitzteiles im Vergleich zu dem aus der EP3143902A1 bekannten Sitzmöbel eine Vielzahl zusätzlicher Verstellkombinationen des Fußteiles, des Sitzteiles und des Rückenteiles ermöglicht, wodurch sich der Verstellkomfort eines erfindungsgemäßen Sitzmöbels erhöht.Furthermore, due to the adjustment of the back part and the foot part/seat part, which can be actuated independently of one another, compared to that from FIG EP3143902A1 known seating allows a variety of additional adjustment combinations of the foot part, the seat part and the back part, which increases the adjustment comfort of a piece of seating furniture according to the invention.

Ein Ausführungsbeispiel der Erfindung wird nachfolgend anhand der beigefügten Zeichnung beschrieben. Diese zeigt in

Fig. 1
ein erfindungsgemäßes Sitzmöbel in Sitzposition des Sitzmöbels;
Fig. 2
ein erfindungsgemäßes Sitzmöbel gemäß Fig. 1 aus anderer Perspektive;
Fig. 3
ein erfindungsgemäßes Sitzmöbel in einer ersten Zwischenposition;
Fig. 4
ein erfindungsgemäßes Sitzmöbel gemäß Fig. 3 aus anderer Perspektive;
Fig. 5
ein erfindungsgemäßes Sitzmöbel gemäß Fig. 3 in einer Detailansicht;
Fig. 6
ein erfindungsgemäßes Sitzmöbel in einer zweiten Zwischenposition;
Fig. 7
ein erfindungsgemäßes Sitzmöbel gemäß Fig. 6 aus anderer Perspektive;
Fig. 8
ein erfindungsgemäßes Sitzmöbel in Liegeposition des Sitzmöbels;
Fig. 9
ein erfindungsgemäßes Sitzmöbel gemäß Fig. 8 aus anderer Perspektive.
Fig. 10a
ein erfindungsgemäßes Sitzmöbel mit nicht in der Neigung verstelltem Sitzteil und relativ zum Sitzteil verschwenktem Rückenteil;
Fig. 10b
ein erfindungsgemäßes Sitzmöbel mit teilweise in der Neigung verstelltem Sitzteil und relativ zum Sitzteil verschwenktem Rückenteil.
An embodiment of the invention is described below with reference to the accompanying drawing. This shows in
1
a chair according to the invention in the sitting position of the chair;
2
a piece of seating furniture according to the invention 1 from another perspective;
3
a piece of seating furniture according to the invention in a first intermediate position;
4
a piece of seating furniture according to the invention 3 from another perspective;
figure 5
a piece of seating furniture according to the invention 3 in a detailed view;
6
a piece of seating furniture according to the invention in a second intermediate position;
7
a piece of seating furniture according to the invention 6 from another perspective;
8
a chair according to the invention in the lying position of the chair;
9
a piece of seating furniture according to the invention 8 from another perspective.
Figure 10a
a piece of seating furniture according to the invention with a seat part that is not adjusted in inclination and a back part that is pivoted relative to the seat part;
Figure 10b
a piece of seating furniture according to the invention with a seat part that is partially adjusted in inclination and a back part that is pivoted relative to the seat part.

Die Darstellungen in der Zeichnung zeigen im Wesentlichen nur den Mechanismus des erfindungsgemäßen Sitzmöbels 1 ohne die hier nicht interessierenden Teile wie insbesondere Polsterungen.The illustrations in the drawing essentially only show the mechanism of the chair 1 according to the invention without the parts that are not of interest here, such as in particular upholstery.

Einige nachfolgend erwähnte Komponenten sind durch einen weitgehend spiegelbildlichen Aufbau der Mechanik des Sitzmöbels 1 doppelt vorhanden, wobei auf diese Komponenten im Folgenden jeweils in der Einzahl eingegangen wird, wobei hiermit jeweils beide Komponenten gemeint sind.Some of the components mentioned below are duplicated due to a largely mirror-inverted structure of the mechanism of the seating furniture item 1, these components being discussed below in the singular, meaning both components in each case.

Ein erfindungsgemäßes Sitzmöbel 1 besteht aus einem Chassis 5, einem Sitzteil 3, einem über wenigstens ein Rückenteil-Verstellgetriebe 2 mit dem Sitzteil 3 und/oder dem Chassis 5 verbundenen Rückenteil 4 und einem ausschwenkbaren Fußteil 6, wobei das Sitzmöbel 1 zwischen einer in Figur 1 gezeigten Sitzposition und einer in Figur 8 gezeigten Liegeposition verschwenkbar ist.A piece of seating furniture 1 according to the invention consists of a chassis 5, a seat part 3, a back part 4 connected to the seat part 3 and/or the chassis 5 via at least one back part adjustment mechanism 2, and a swing-out foot part 6, with the seating furniture item 1 between an in figure 1 shown seating position and an in figure 8 shown lying position is pivotable.

Das Fußteil 6 ist über wenigstens ein Fußteil-Verstellgetriebe 9, vorzugsweise in Form von mindestens fünf hintereinander angeordneten Viergelenkketten, an das Sitzteil 3 angeschlossen.The foot part 6 is connected to the seat part 3 via at least one foot part adjusting mechanism 9, preferably in the form of at least five four-bar linkage chains arranged one behind the other.

Das Fußteil-Verstellgetriebe 9 weist einen ersten 25 und einen zweiten 26 jeweils am Sitzteil 3 angelenkten Gelenkhebel auf, wobei wenigstens einer des ersten 25 und des zweiten Gelenkhebels 26 ein Anschlagelement 24 aufweist, welches während der Schwenkbewegung des Fußteiles 6 an einer Anschlagfläche einer mit dem vorderen Bereich des Sitzteiles 3 verbundenen Sitzteillasche 27 in Kontakt kommt.The foot part adjustment mechanism 9 has a first 25 and a second 26 articulated lever each articulated on the seat part 3, with at least one of the first 25 and the second articulated lever 26 having a stop element 24 which, during the pivoting movement of the foot part 6, comes into contact with a stop surface of one with the front area of the seat part 3 connected seat part strap 27 comes into contact.

Das Rückenteil-Verstellgetriebe 2 weist eine fest mit dem Sitzteil 3 verbundene Befestigungsplatte 20 mit einem daran angelenkten Verstellhebel 21 auf, welcher des Weiteren über einen ersten Verbindungshebel 22 am Chassis 5 und über einen zweiten Verbindungshebel 23 am Rückenteil 4 angeschlossen ist.The back part adjusting mechanism 2 has a fastening plate 20 firmly connected to the seat part 3 with an adjusting lever 21 articulated thereon, which is also connected to the chassis 5 via a first connecting lever 22 and to the back part 4 via a second connecting lever 23 .

Das Sitzteil 3 ist mittels einer ersten 10 und einer zweiten Verlagerungseinheit 11 von einer zur Hinterkante des Sitzmöbels 1 verlagerten Sitzposition in eine zur Vorderkante des Sitzmöbels 1 verlagerten Liegeposition relativ zum Chassis 5 verschiebbar und in der Neigung verstellbar.The seat part 3 can be displaced relative to the chassis 5 by means of a first 10 and a second displacement unit 11 from a sitting position displaced towards the rear edge of the seating furniture 1 into a lying position displaced towards the front edge of the seating furniture 1 and the inclination can be adjusted.

Die Begriffe "Vorderkante des Sitzmöbels" und "Hinterkante des Sitzmöbels" beziehen sich auf die Perspektive einer auf dem Sitzmöbel aufsitzenden Person, dessen Beine nach vorne weisen und dessen Rücken nach hinten weist.The terms "front edge of the seat" and "rear edge of the seat" refer to the perspective of a person sitting on the seat with their legs pointing forward and their back pointing back.

Die erste Verlagerungseinheit 10 weist eine Schwenkführung auf, wobei ein vorderer 7 und ein hinterer Lenkerhebel 8 mit dem Sitzteil 3 und einem mit der zweiten Verlagerungseinheit 11 verbundenen Zwischenträger 14 eine Viergelenkkette bilden.The first displacement unit 10 has a swivel guide, with a front 7 and a rear link lever 8 forming a four-bar linkage chain with the seat part 3 and an intermediate support 14 connected to the second displacement unit 11 .

Die Schwenkbewegung der ersten Verlagerungseinheit 10 in Richtung zur Vorderkante des Sitzmöbels 1 wird durch ein sitzteilseitiges Anschlagelement 18 blockiert.The pivoting movement of the first displacement unit 10 in the direction of the front edge of the chair 1 is blocked by a stop element 18 on the seat part side.

Die zweite Verlagerungseinheit 11 wird durch ein lineares oder durch ein annähernd lineares Führungssystem, vorzugsweise durch ein am Chassis 5 angelenktes Hebelverstellgetriebe 16 oder durch ein Zahnstangengetriebe oder durch formschlüssig in einem C-Profil bewegbaren Nutensteinen oder Rollen, gebildet, wobei das Führungssystem, ausgehend von der Sitzposition des Sitzmöbels 1, entlang eines Bewegungspfades relativ zum Chassis 5 nach vorne beweglich ist, wobei der Bewegungspfad vorzugsweise linear ist und/oder der Bewegungspfad in Richtung nach vorne ansteigt.The second displacement unit 11 is formed by a linear or an approximately linear guide system, preferably by a lever adjustment mechanism 16 articulated on the chassis 5 or by a rack and pinion mechanism or by sliding blocks or rollers that can be moved in a form-fitting manner in a C-profile, with the guide system, starting from the Sitting position of the chair 1, along a path of movement relative to the chassis 5 is movable forward, wherein the path of movement is preferably linear and / or the path of movement increases in the forward direction.

Die erste 10 und die zweite Verlagerungseinheit 11 sind aneinander angebracht, wobei der Zwischenträger 14 an zwei Schwenkhebeln 28 des Hebelverstellgetriebes 16 angelenkt ist, wodurch die erste Verlagerungseinheit 10 gegenüber dem Chassis 5 verschiebbar geführt ist.The first 10 and the second displacement unit 11 are attached to one another, with the intermediate carrier 14 being articulated on two pivoting levers 28 of the lever adjustment mechanism 16, as a result of which the first displacement unit 10 is guided in a displaceable manner relative to the chassis 5.

Die erste Verlagerungseinheit 10 ist mittels einer Zugfeder 17 kraftbeaufschlagt.The first displacement unit 10 is subjected to a force by means of a tension spring 17 .

Die Zugfeder 17 ist einerseits vorzugsweise mit dem Sitzteil 3 und andererseits vorzugsweise mit dem Zwischenträger 14 der ersten Verlagerungseinheit 10 gekoppelt.The tension spring 17 is preferably coupled to the seat part 3 on the one hand and preferably to the intermediate carrier 14 of the first displacement unit 10 on the other hand.

Ein erster Linearaktuator 12 ist erfindungsgemäß mit einem ersten Ende mit dem Chassis 5 und mit einem zweiten Ende mit der ersten Verlagerungseinheit 10 über eine mit dem Zwischenträger 14 der ersten Verlagerungseinheit 10 verbundenen ersten Querstrebe 15 gekoppelt.According to the invention, a first linear actuator 12 is coupled to the chassis 5 at a first end and to the first displacement unit 10 at a second end via a first cross brace 15 connected to the intermediate carrier 14 of the first displacement unit 10 .

Die erste Querstrebe 15 ist erfindungsgemäß sowohl relativ zum Chassis 5 als auch relativ zum Sitzteil 3 verlagerbar geführt.According to the invention, the first transverse strut 15 is guided in a displaceable manner both relative to the chassis 5 and relative to the seat part 3 .

Ein zweiter Linearaktuator 13 ist erfindungsgemäß mit einem ersten Ende mit der ersten Querstrebe 15 und mit einem zweiten Ende mit dem Fußteil-Verstellgetriebe 9 über eine mit dem Fußteil-Verstellgetriebe 9 verbundene zweite Querstrebe 19 gekoppelt.According to the invention, a second linear actuator 13 is coupled at a first end to the first cross brace 15 and at a second end to the foot part adjustment gear 9 via a second cross brace 19 connected to the foot part adjustment gear 9 .

Diese erfindungsgemäße Anordnung des ersten 12 und des zweiten Linearaktuators 13, bei welcher

  • der erste Linearaktuator 12 mit einem ersten Ende mit dem Chassis 5 und mit einem zweiten Ende mit der sowohl relativ zum Chassis 5 als auch relativ zum Sitzteil 3 verlagerbar geführten ersten Querstrebe 15 gekoppelt ist, und
  • der zweite Linearaktuator 13 mit einem ersten Ende mit der sowohl relativ zum Chassis 5 als auch relativ zum Sitzteil 3 verlagerbar geführten ersten Querstrebe 15 und mit einem zweiten Ende mit dem Fußteil-Verstellgetriebe 9 über die mit dem Fußteil-Verstellgetriebe 9 verbundene zweite Querstrebe 19 gekoppelt ist,
ermöglicht einen im folgenden beschriebenen, vorteilhaften Verstellablauf des Sitzteiles 3, des Fußteiles 6 und des Rückenteiles 4 zwischen der Sitz- und der Liegeposition eines erfindungsgemäßen Sitzmöbels 1.This inventive arrangement of the first 12 and the second linear actuator 13, in which
  • the first linear actuator 12 is coupled at a first end to the chassis 5 and at a second end to the first transverse strut 15, which is guided so as to be displaceable both relative to the chassis 5 and relative to the seat part 3, and
  • the second linear actuator 13 is coupled at a first end to the first transverse strut 15, which is guided so as to be displaceable both relative to the chassis 5 and relative to the seat part 3, and at a second end to the foot part adjustment gear 9 via the second cross strut 19 connected to the foot part adjustment gear 9 is,
enables an advantageous adjustment process of the seat part 3, the foot part 6 and the back part 4 between the sitting and the lying position of a piece of seating furniture 1 according to the invention, as described below.

In der Ausgangsposition beziehungsweise der Sitzposition des Sitzmöbels 1 ist durch den zwischen dem Chassis 5 und der ersten Querstrebe 15 angelenkten ersten Linearaktuator 12 die zweite Verlagerungseinheit 11 in ihrer Ausgangsposition gehalten, weiterhin ist durch den zwischen der ersten 15 und der zweiten Querstrebe 19 wirkenden zweiten Linearaktuator 13 das Fußteil 6 mittels des zwischen der Sitzteillasche 27 und dem Fußteil-Verstellgetriebe 9 wirkenden Anschlagelements 24 in der eingeschwenkten Endlagenposition gehalten, und die erste Verlagerungseinheit 10 ist durch die definierte Stellung des Fußteiles 6 und mittels des zweiten Linearaktuators 13 in ihrer Schwenkposition definiert (Fig. 1, 2).In the starting position or the sitting position of the item of seating furniture 1, the first linear actuator 12, which is articulated between the chassis 5 and the first crossbar 15, holds the second displacement unit 11 in its starting position, as well as the second linear actuator acting between the first 15 and the second crossbar 19 13, the foot part 6 is held in the pivoted-in end position by means of the stop element 24 acting between the seat part bracket 27 and the foot part adjusting mechanism 9, and the first displacement unit 10 is held in place by the defined position of the foot part 6 and by means of the second linear actuator 13 is defined in its pivoting position ( 1 , 2 ).

Der zweite Linearaktuator 13 erzeugt bei Betätigung einen linearen Hub, bestehend aus wenigstens einem ersten und einem zweiten Teilhub, wobei in einem durch den ersten Teilhub des zweiten Linearaktuators 13 bewirkten ersten Verstellschritt des Sitzmöbels 1 von der Sitz- in die Liegeposition das Sitzteil 3 mittels der ersten Verlagerungseinheit 10 nach vorne verschoben und dabei der hintere Bereich des Sitzteiles 3 abgesenkt und der vordere Bereich des Sitzteiles 3 angehoben wird, so dass das Sitzteil 3 gegenüber der Sitzposition des Sitzmöbels 1 in der Neigung verstellt wird bis der hintere Lenkerhebel 8 der ersten Verlagerungseinheit 10 mit dem sitzteilseitigen Anschlagelement 18 in Kontakt kommt und die Schwenkbewegung der ersten Verlagerungseinheit 10 dadurch blockiert wird.When actuated, the second linear actuator 13 generates a linear stroke consisting of at least a first and a second partial stroke, whereby in a first adjustment step of the seating furniture item 1 caused by the first partial stroke of the second linear actuator 13 from the sitting to the lying position, the seat part 3 is moved by means of the first displacement unit 10 is pushed forward and the rear area of the seat part 3 is lowered and the front area of the seat part 3 is raised, so that the seat part 3 is adjusted in inclination relative to the sitting position of the piece of seating furniture 1 until the rear link lever 8 of the first displacement unit 10 comes into contact with the stop element 18 on the seat part side and the pivoting movement of the first displacement unit 10 is thereby blocked.

In dieser Verstellposition des Sitzteiles 3 ist das Fußteil 6 noch nicht ausgefahren (Fig. 3, 4, 5).In this adjustment position of the seat part 3, the foot part 6 is not yet extended ( 3 , 4 , 5 ).

Die Zugfeder 17 verkürzt sich während dieses ersten Verstellschrittes und unterstützt dadurch die Verstellbewegung des Sitzteiles 3, wodurch zuerst das Sitzteil 3 ohne eine Verschwenkung des Fußteiles 6 relativ zum Sitzteil 3 verstellt wird (Fig. 3, 4, 5).The tension spring 17 shortens during this first adjustment step and thereby supports the adjustment movement of the seat part 3, as a result of which the seat part 3 is adjusted first without the foot part 6 pivoting relative to the seat part 3 ( 3 , 4 , 5 ).

Am Ende des ersten Verstellschrittes weist die Vorderkante des Sitzteiles 3 einen größeren Abstand zur Aufstandsebene des Sitzmöbels 1 auf als in der Sitzposition des Sitzmöbels 1, wodurch für das nach Erreichen dieser ersten Zwischenpostion ausfahrende Fußteil 6 ein größerer Schwenkraum zur Verfügung gestellt und dadurch die Verwendung eines längeren Fußteiles 6 ermöglicht wird.At the end of the first adjustment step, the front edge of the seat part 3 is at a greater distance from the support plane of the seating furniture item 1 than when the seating furniture item 1 is in the sitting position, as a result of which a greater pivoting space is made available for the foot part 6, which extends after this first intermediate position has been reached, and thus the use of a longer foot part 6 is made possible.

Der weitere Vorteil dieser ersten Zwischenpostion des Sitzmöbels 1 besteht in der Möglichkeit für den Benutzer, eine gegenüber der Sitzposition des Sitzmöbels 1 entspanntere Sitzhaltung einzunehmen, ohne dass dabei bereits das Fußteil 6 ausfährt.The further advantage of this first intermediate position of the chair 1 is the possibility for the user to assume a more relaxed sitting position than the seated position of the chair 1 without the foot part 6 already extending.

In einem durch den zweiten Teilhub des zweiten Linearaktuators 13 bewirkten zweiten Verstellschritt des Sitzmöbels 1 von der Sitz- in die Liegeposition wird, unter Beibehaltung der am Ende des ersten Teilhubes erzielten Neigungs- und Verschiebeposition des Sitzteiles 3 relativ zum Chassis 5 und unter Beibehaltung der Position des Rückenteiles 4 relativ zum Sitzteil 3, ein Ausfahren des Fußteiles 6 relativ zum Sitzteil 3 bewirkt bis das Fußteil 6 die ausgeschwenkte Endlagenposition und das Sitzmöbel 1 damit während der Verstellung von der Sitz- in die Liegeposition eine zweite Zwischenpostion erreicht hat (Fig. 6, 7).In a second adjustment step of the item of seating furniture 1 from the sitting to the lying position caused by the second partial stroke of the second linear actuator 13, the tilting and displacement position of the seat part 3 relative to the chassis 5 achieved at the end of the first partial stroke is maintained and the position is maintained of the back part 4 relative to the seat part 3, an extension of the foot part 6 relative to the seat part 3 causes until the foot part 6 has reached the pivoted end position and the chair 1 has reached a second intermediate position during the adjustment from the sitting to the lying position ( 6 , 7 ).

Die Anordnung der mit dem Zwischenträger 14 der ersten Verlagerungseinheit 10 verbundenen ersten Querstrebe 15, welche sowohl relativ zum Chassis 5 als auch relativ zum Sitzteil 3 verlagerbar geführt ist und an welcher erfindungsgemäß sowohl der erste 12 als auch der zweite Linearaktuator 13 angelenkt sind, ermöglicht einen Verstellablauf, bei welchem bei Betätigung des zweiten Linearaktuators 13, in Verstellrichtung zur Liegeposition des Sitzmöbels 1, immer erst die Neigung des Sitzteiles 3 verstellt wird und danach erst das Fußteil 6 ausgefahren wird, so dass das Fußteil 6 auch ohne eine elektronische Steuerung die gleiche Länge wie bei dem aus der EP3143902A1 bekannten Sitzmöbel aufweisen kann.The arrangement of those connected to the intermediate carrier 14 of the first displacement unit 10 first transverse strut 15, which is guided so that it can be displaced both relative to the chassis 5 and relative to the seat part 3 and to which both the first 12 and the second linear actuator 13 are articulated according to the invention, enables an adjustment sequence in which, when the second linear actuator 13 is actuated, in Adjustment to the lying position of the chair 1, always only the inclination of the seat part 3 is adjusted and only then the foot part 6 is extended, so that the foot part 6 is the same length as the one from the without an electronic control EP3143902A1 known seating may have.

In umgekehrter Verstellrichtung, d.h. in Richtung zur Sitzposition des Sitzmöbels 1, wird aufgrund der zu überwindenden Federkraft der Zugfeder 17 zuerst das Fußteil 6 eingefahren bis das Anschlagelement 24 an der Anschlagfläche der Sitzteillasche 27 in Kontakt kommt, und danach das Sitzteil 3 entgegen der Federkraft der Zugfeder 17 in die Ausgangsposition verstellt.In the opposite direction of adjustment, i.e. in the direction of the sitting position of the chair 1, due to the spring force of the tension spring 17 to be overcome, the foot part 6 is first retracted until the stop element 24 comes into contact with the stop surface of the seat part bracket 27, and then the seat part 3 against the spring force of the Tension spring 17 adjusted to the starting position.

Durch einen durch Betätigung des ersten Linearaktuators 12 erzeugten linearen Hub wird ein dritter Verstellschritt des Sitzmöbels 1 von der Sitz- in die Liegeposition bewirkt, wobei während dieses Verstellschrittes, unter Beibehaltung der Position des Fußteiles 6 relativ zum Sitzteil 3, mittels des Hebelverstellgetriebes 16 ein Verschieben des Sitzteiles 3 relativ zum Chassis 5 nach vorne und eine mit der Verschiebebewegung des Sitzteiles 3 gekoppelte Verschwenkung des Rückenteiles 4 relativ zum Sitzteil 3 erfolgt (Fig. 8, 9).A linear stroke generated by actuation of the first linear actuator 12 causes a third adjustment step of the seating furniture item 1 from the sitting to the lying position, whereby during this adjustment step, the position of the foot part 6 relative to the seat part 3 is shifted by means of the lever adjustment mechanism 16 of the seat part 3 relative to the chassis 5 forward and a pivoting of the back part 4 relative to the seat part 3 coupled with the displacement movement of the seat part 3 takes place ( 8 , 9 ).

Alle vorgenannten, durch den ersten 12 und durch den zweiten Linearaktuator 13 bewirkten Verstellschritte können separat und in beliebiger Reihenfolge oder gegebenenfalls auch gleichzeitig ausgeführt werden, wobei eine voneinander unabhängig zu betätigende Verstellung des Rückenteiles 4 und des Fußteiles 6 und eine voneinander unabhängig zu betätigende Verstellung des Rückenteiles 4 und des Sitzteiles 3 gewährleistet ist, so dass in jeder Verstellposition des Sitzteiles 3 oder des Fußteiles 6 eine wandfreie Verstellung des Rückenteiles 4 in jede gewünschte Schwenkposition möglich ist und in jeder Verstellposition des Rückenteiles 4 das Sitzteil 3 oder das Fußteil 6 in jede gewünschte Position verschwenkt werden können.All of the aforementioned adjustment steps effected by the first 12 and the second linear actuator 13 can be carried out separately and in any order or, if necessary, simultaneously, with an adjustment of the back part 4 and the foot part 6 to be actuated independently of one another and an adjustment of the back part 4 and the seat part 3 is guaranteed, so that in every adjustment position of the seat part 3 or the foot part 6, a smooth adjustment of the back part 4 is possible in any desired pivoting position and in every adjustment position of the back part 4 the seat part 3 or the foot part 6 in any desired Position can be pivoted.

Des Weiteren ist der aus der EP3143902A1 bekannte Ablauf der Verstellfunktion von Sitzteil 3, Rückenteil 4 und Fußteil 6 mit zwei zwischen der Sitz- und der Liegeposition befindlichen Zwischenpositionen gewährleistet, indem während der Verstellung des Sitzmöbels 1 von der Sitz- in die Liegeposition mittels des ersten 12 und des zweiten Linearaktuators 13

  • mit einem ersten Teilhub des zweiten Linearaktuators 13 das Sitzteil 3, ohne ein Ausfahren des Fußteiles 6, nach vorne verschoben und gleichzeitig in der Neigung verstellt wird bis zum Erreichen einer sogenannten, für den Benutzer als angenehm empfundenen "Loungeposition" (Fig. 3, 4, 5),
  • mit einem zweiten Teilhub des zweiten Linearaktuators 13 das Fußteil 6 vor das Sitzteil 3 ausgefahren wird ohne eine Verstellung des Sitzteiles 3 relativ zum Chassis 5 und ohne eine Verstellung des Rückenteiles 4 relativ zum Sitzteil 3 bis zum Erreichen einer sogenannten "Relaxposition" (Fig. 6, 7),
  • mit einem linearen Hub des ersten Linearaktuators 12 das Sitzteil 3 weiter nach vorne verschoben und dabei gleichzeitig das Rückenteil 4 relativ zum Sitzteil 3 verschwenkt wird bis zum Erreichen der Liegeposition (Fig. 8, 9).
Furthermore, the one from the EP3143902A1 known sequence of the adjustment function of the seat part 3, back part 4 and foot part 6 with two intermediate positions between the sitting and the lying position is ensured in that during the adjustment of the seating furniture 1 from the sitting to the lying position by means of the first 12 and the second linear actuator 13
  • With a first partial stroke of the second linear actuator 13, the seat part 3, without extending the foot part 6, is shifted forward and at the same time the inclination is adjusted up to Reaching a so-called "lounge position" that is perceived as pleasant by the user ( 3 , 4 , 5 ),
  • with a second partial stroke of the second linear actuator 13, the foot part 6 is extended in front of the seat part 3 without an adjustment of the seat part 3 relative to the chassis 5 and without an adjustment of the back part 4 relative to the seat part 3 until a so-called "relax position" is reached ( 6 , 7 ),
  • With a linear stroke of the first linear actuator 12, the seat part 3 is pushed further forward and at the same time the back part 4 is pivoted relative to the seat part 3 until the reclining position is reached ( 8 , 9 ).

Zusätzlich zu diesem, aus der EP3143902A1 bekannten Verstellablauf, ermöglicht ein Sitzmöbel 1 der vorliegenden Erfindung viele weitere, den Komfort des Sitzmöbels 1 erhöhende Verstellkombinationen des Sitzteiles 3, des Fußteiles 6 und des Rückenteiles 4, so kann beispielsweise, wie in den Figuren 10a, 10b gezeigt, bei einem nicht oder nur teilweise in der Neigung verstelltem Sitzteil 3, das Rückenteil 4 wandfrei relativ zum Sitzteil 3 verstellt werden.In addition to this, from the EP3143902A1 known adjustment sequence, a chair 1 of the present invention allows many more, the comfort of the chair 1 increasing adjustment combinations of the seat part 3, the foot part 6 and the back part 4, for example, as in the Figures 10a, 10b shown, in the case of a seat part 3 that is not or only partially adjusted in inclination, the back part 4 can be adjusted relative to the seat part 3 without a wall.

Claims (16)

  1. Seating furniture (1) comprising a frame (5), a seat part (3) pivotable in inclination, a back part (4) pivotable relative to the seat part (3), and a foot part (6) which can be pivoted out and which is attached to the seat part (3) via at least one foot part adjustment gear unit (9), wherein
    - the seating furniture (1) is adjustable between an upright sitting position and a lying position,
    - for which purpose, at least during a sub-phase of the adjustment of the seating furniture (1) from the sitting into the lying position, the seat part (3) is displaced forwards relative to the frame (5),
    - at least a first (12) and a second linear actuator (13) being provided for adjusting the seat part (3), the foot part (6) and the back part (4) between the sitting position and the lying position of the seating furniture (1),
    - the first linear actuator (12), upon actuation, generating a linear stroke and thus bringing about at least an adjustment of the back part (4),
    - the second linear actuator (13), upon actuation, generating a linear stroke and thus bringing about at least an adjustment of the foot part (6),
    - the first linear actuator (12), upon actuation, generating a linear stroke and thus bringing about an adjustment of the back part (4) relative to the seat part (3),
    characterised in that
    - the second linear actuator (13), upon actuation, generates a linear stroke consisting of at least a first and a second sub-stroke, and thus,
    - during the adjustment of the seating furniture (1) from the sitting into the lying position, brings about a displacement of the seat part (3) forwards relative to the frame (5) and a simultaneous inclination adjustment of the seat part (3) by way of a first sub-stroke, no extension or retraction of the foot part (6) relative to the seat part (3) taking place during this first sub-stroke of the second linear actuator (13),
    - the second linear actuator (13), during the adjustment of the seating furniture (1) from the sitting position into the lying position, bringing about extension of the foot part (6) relative to the seat part (3) by way of a second sub-stroke following on from the first sub-stroke.
  2. Seating furniture (1) according to claim 1, characterised in that the second linear actuator (13) brings about extension of the foot part (6) relative to the seat part (3) by way of a second sub-stroke following on the first sub-stroke, while maintaining the inclination position and displacement position of the seat part (3) relative to the frame (5) achieved at the end of the first sub-stroke and while maintaining the position of the back part (4) relative to the seat part (3).
  3. Seating furniture (1) according to either claim 1 or claim 2, characterised in that the first linear actuator (12), upon actuation, generates a linear stroke and thus brings about an adjustment of the back part (4) relative to the seat part (3) with simultaneous adjustment of the seat part (3) relative to the frame (5).
  4. Seating furniture (1) according to at least one of the preceding claims, characterised in that, for adjusting the seating furniture (1) between the sitting position and the lying position, the seat part (3) is displaced relative to the frame (5) by way of a first (10) and a second displacement unit (11).
  5. Seating furniture (1) according to at least one of the preceding claims, characterised in that the first displacement unit (10) is attached both to the seat part (3) and to the second displacement unit (11), and the second displacement unit (11) is further attached to the frame (5).
  6. Seating furniture (1) according to at least one of the preceding claims, characterised in that the first displacement unit (10) has a pivot guide, a front (7) and a rear steering lever (8) forming a four-link chain together with the seat part (3) and an intermediate support (14) connected to the second displacement unit (11).
  7. Seating furniture (1) according to at least one of the preceding claims, characterised in that the pivot movement of the first displacement unit (10) towards the front edge of the seating furniture (1) is blocked by a stop element (18) on the seat part side.
  8. Seating furniture (1) according to at least one of the preceding claims, characterised in that the second displacement unit (11) is formed by a linear or approximately linear guide system, preferably by a lever adjustment gear unit (16) or toothed rack gear unit or by sliding blocks or rollers movable in a positive fit in a C profile, and the guide system, starting from the sitting position of the seating furniture (1) can be moved forwards along a movement path relative to the frame (5), the movement path preferably rising in the forward direction.
  9. Seating furniture (1) according to at least one of the preceding claims, characterised in that the first (10) and the second displacement unit (11) are attached to one another, the intermediate support (14) preferably being connected to at least one movable part of the guide system, the first displacement unit (10) being guided displaceably relative to the frame (5).
  10. Seating furniture (1) according to at least one of the preceding claims, characterised in that the first displacement unit (10) is loaded with force by at least one tension spring (17), and the tension spring (17) preferably acts between the intermediate support (14) of the first displacement unit (10) and the seat part (3).
  11. Seating furniture (1) according to at least one of the preceding claims, characterised in that the second linear actuator (13) acts between the first displacement unit (10), which is guided displaceably relative to the frame (5), and the foot part adjustment gear unit (9), in such a way that when a sub-stroke is generated at the second linear actuator (13) merely an adjustment of the seat part (3) relative to the frame (5) is brought about, without extension or retraction of the foot part (6) relative to the seat part (3).
  12. Seating furniture (1) according to at least one of the preceding claims, characterised in that the first linear actuator (12) is coupled to the frame (5) by a first end and to the displacement unit (10) by a second end via a first cross-strut (15), which is connected to the intermediate support (14) of the first displacement unit (10).
  13. Seating furniture (1) according to at least one of the preceding claims, characterised in that the second linear actuator (13) is coupled to the first displacement unit (10) by a first end via the first cross-strut (15), which is connected to the intermediate support (14) of the first displacement unit (10), and to the foot part adjustment gear unit (9) by a second end via a second cross-strut (19), which is connected to the foot part adjustment gear unit (9) .
  14. Seating furniture (1) according to at least one of the preceding claims, characterised in that the first cross-strut (15) is guided displaceably both relative to the frame (5) and relative to the seat part (3).
  15. Seating furniture (1) according to at least one of the preceding claims, characterised in that
    - the first linear actuator (12) is coupled to the frame (5) by a first end and to the first cross-strut (15), which is guided displaceably both relative to the frame (5) and relative to the seat part (3), by a second end, and
    - the second linear actuator (13) is coupled to the first cross-strut (15), which is guided displaceably both relative to the frame (5) and relative to the seat part (3), and to the foot part adjustment gear unit (9) by a second end via the second cross-strut (19), which is connected to the foot part adjustment fear unit (9).
  16. Seating furniture (1) according to at least one of the preceding claims, characterised in that, during the adjustment of the seating furniture (1) from the lying into the sitting position,
    - a pivot movement of the foot part (6), brought about by a first sub-stroke of the second linear actuator (13), is blocked by a stop element (24), and
    - by generating a second sub-stroke of the second linear actuator (13), following on from the first sub-stroke, a displacement of the seat part (3) rearwards relative to the frame (5) and a simultaneous inclination adjustment of the seat part (3) are brought about.
EP20750574.4A 2019-06-29 2020-06-28 Seating furniture having dual-motor wall-away function Active EP3965617B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102019117625 2019-06-29
PCT/DE2020/100560 WO2021000994A1 (en) 2019-06-29 2020-06-28 Seating furniture having dual-motor wall-away function

Publications (2)

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EP3965617A1 EP3965617A1 (en) 2022-03-16
EP3965617B1 true EP3965617B1 (en) 2023-08-02

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EP20750574.4A Active EP3965617B1 (en) 2019-06-29 2020-06-28 Seating furniture having dual-motor wall-away function

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US (1) US11737561B2 (en)
EP (1) EP3965617B1 (en)
CN (1) CN114025644B (en)
DE (1) DE112020003152A5 (en)
DK (1) DK3965617T3 (en)
ES (1) ES2957138T3 (en)
PL (1) PL3965617T3 (en)
WO (1) WO2021000994A1 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2023046239A1 (en) * 2021-09-27 2023-03-30 Michael Schuster Piece of seating furniture with a dual-motor wallaway function and separate seat-depth and seat-inclination adjustment
WO2023046242A1 (en) * 2021-09-27 2023-03-30 Michael Schuster Piece of seating furniture with just one displacement unit for seat-part and back-part adjustment
WO2023046243A1 (en) * 2021-09-27 2023-03-30 Michael Schuster Item of seating furniture with separate seat depth, seat incline and footrest adjustment

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Also Published As

Publication number Publication date
CN114025644B (en) 2024-02-13
DK3965617T3 (en) 2023-10-30
WO2021000994A1 (en) 2021-01-07
EP3965617A1 (en) 2022-03-16
US11737561B2 (en) 2023-08-29
DE112020003152A5 (en) 2022-03-17
CN114025644A (en) 2022-02-08
ES2957138T3 (en) 2024-01-11
US20220312968A1 (en) 2022-10-06
PL3965617T3 (en) 2024-01-22

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