EP2893843A1 - Seating furniture with head part which can be pivoted using a motor - Google Patents
Seating furniture with head part which can be pivoted using a motor Download PDFInfo
- Publication number
- EP2893843A1 EP2893843A1 EP15150238.2A EP15150238A EP2893843A1 EP 2893843 A1 EP2893843 A1 EP 2893843A1 EP 15150238 A EP15150238 A EP 15150238A EP 2893843 A1 EP2893843 A1 EP 2893843A1
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- EP
- European Patent Office
- Prior art keywords
- lever
- pivot
- seating furniture
- furniture according
- backrest
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- 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.)
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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
- A47C7/00—Parts, details, or accessories of chairs or stools
- A47C7/36—Support for the head or the back
- A47C7/38—Support for the head or the back for the head
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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
- 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
- A47C7/402—Support for the head or the back for the back adjustable in height
Definitions
- the invention relates to a chair, preferably armchair or sofa, with a backrest and a motor-adjustable head part, wherein the head part is supported by a pivot lever.
- Seating such as sofas or armchairs, with respect to the backrest pivoting headboards are known in different configurations and allow the user of the chair to take a comfortable sitting and / or lying position.
- the head part which is also referred to as a headrest, be brought into a position in which the user of the chair can lean his head against the headboard comfortably.
- the motorized adjustment of the headboard relative to the backrest further enhances the comfort of the user of the chair, especially when the mobility of the user is limited. Then the user does not have to grasp and adjust the headboard behind them with their hands. Rather, it is sufficient to press a button on an easily accessible control panel.
- the present invention seeks to design the seating of the aforementioned type and previously described in such a way and further, that a simpler production of a robust motor Headboard adjustment is possible.
- pivot lever is pivotally connected separately via two levers with the backrest that the two levers are connected together via a common control lever with the backrest and that in addition a lever over a Handlebar lever is pivotally connected to the backrest.
- the connection of the pivot lever on the two levers with the backrest allows pivoting of the pivot lever and a stable support of the same against the backrest.
- the pivot lever can be easily pivoted by the two levers adjusted differently, especially raised or lowered.
- the two adjusting levers in particular in the longitudinal direction of the control lever, be spaced from each other fixed on the control lever. A pivoting of the control lever then leads to a correspondingly different pivoting of the actuating lever relative to each other.
- the two levers are connected via a common control lever with the backrest. Furthermore, additional degrees of freedom in the adjustment of the swivel fitting can be avoided if one of the adjusting levers is connected to the backrest via a link lever. Thus, for each position of the head part during its adjustment of the swung back into the pivoted position and back each result exactly one position of the swivel fitting (degree of freedom 1).
- the head part can be moved relative to each other on the one hand up or down on the relative adjustment of the lever and on the other hand, simultaneously pivoted backwards or forwards. That adjustment of the head part upwards and forwards to the pivoted-on position leads to a stretching of the upholstered section which is bent more strongly in the back-swiveled position of the head part. This allows adjustment of the backrest without wrinkling of the pad.
- a mere pivoting of the head part from a position which is angled relative to the backrest to a position which is aligned substantially parallel to the backrest would, in the case of upholstery of the backrest and head part, lead to wrinkling of the padding material which is in this position.
- the pivot lever, the control lever and the handlebar lever could be dispensed with in relation to the pivot fitting on further lever to simplify the swivel fitting and reduce manufacturing costs. If necessary, but in principle also other components can be integrated into the swivel fitting.
- the seat of the pivot lever is pivotally supported about an imaginary pivot axis on a pivot fitting, wherein the pivot axis is preferably a rotation axis.
- This pivot axis results in consideration of the purely pivoting movement component of the pivot lever when adjusting the head part, ie without lifting, lowering and moving the headboard forward or backward. Since the pivoting movement component of the pivot lever is caused by the adjusting lever, it is preferred if the imaginary pivot axis is provided approximately centrally between the points of attack of the adjusting lever on the pivot lever. As a result, a suitable pivoting of the head part can be achieved in a structurally simple manner, which allows, if necessary, a simultaneous height adjustment of the head part, without this would require a disproportionately high design effort.
- the motor drive can engage a lever. In this case, it lends itself to the simplicity of further when the motor drive is connected to the lever.
- the two levers can be arranged substantially in one plane.
- the handlebar lever and the control lever are arranged substantially in one plane.
- the corresponding components can actually not be arranged completely in one plane because of their spatial dimensions.
- the components may be arranged near a common plane or at least partially provided in a plane. This is preferably meant with the arrangement substantially in the same plane.
- a pivot fitting comprising at least the adjusting levers, the pivoting lever, the handlebar lever and the control lever preferably has a degree of freedom of 1 with respect to the adjustment of the head part from a pivoted-back position to a pivoted-back position.
- each position of the head part over the entire adjustment of the head part defines exactly one position of the swivel fitting.
- At least one stop can be provided.
- the stop may be in an upper end position and / or in a lower end position with one of the levers in abutment to block the further adjustment of the stop located in abutment control lever.
- Swivel joints especially in the form of swivel joints, are simple and can absorb or transmit large forces. Therefore, it is presently preferred if the one lever is connected via a respective pivot joint with the pivot lever, the control lever and / or the handlebar lever. Alternatively or additionally, for the same reasons, the other adjusting lever can be connected to the pivot lever and / or the link lever via a respective pivot joint.
- a further simplification of the seat can be achieved by the handlebar lever and the control lever are held on a common support plate on the backrest.
- the motor drive is a linear drive.
- the motor drive may preferably have a threaded rod, which can be moved as a result of the drive in the longitudinal direction of the threaded rod.
- the threaded rod can engage a transverse to the seat extending drive strut. This can extend transversely to the seating and connect two provided on opposite sides of the chair pivot fittings.
- the swivel fittings are preferably similar, if necessary, formed symmetrically to each other. In this way, ultimately a more comfortable guidance of the head part can be achieved by means of two pivot fittings, but a second motor drive can be dispensed with.
- a backrest 1 and a motor-adjustable head part 2 is shown, on the right side of the chair 3 in the form of a chair.
- the provided on the right side of the chair 3 swivel fitting 4 for adjusting the head part 2 is provided in the same way mirror image on the left side of the chair 3, not shown.
- the seating 3 comes with a single motor drive 5.
- Of the Motor drive 5 is mounted on a cross strut 6 of the chair 3, wherein the cross strut 6 is supported on both side walls 7 of the backrest 1.
- the motor drive 5 is designed as a linear drive and comprises a motor housing 8 and a threaded rod 9 held displaceably therein.
- the threaded rod 9 is pivotally connected to a drive strut 10 running transversely to the seating furniture 3 and interconnecting the two pivot fittings 4.
- Each swivel fitting 4 for adjusting the head part 2 comprises a pivoting lever 11 which carries the head part 2 and pivots.
- the pivot lever 11 is held by two levers 12,13, which extend in the illustrated and so far preferred seating 3 substantially vertically downwards and extend approximately parallel to each other.
- One of the adjusting levers 12 is articulated pivotably via a link lever 14 to a support plate 15 connected to the backrest 1.
- a control lever 16 is pivotally fixed, which is connected to two adjusting levers 12,13, and spaced from each other.
- the compounds of the support plate 15 with the handlebar lever 14 and the control lever 16 are formed in the illustrated and insofar preferred seating 3 as pivotal connections 17 in the form of hinges.
- connection between the control levers 12,13 and the pivot lever 11 on the one hand and the handlebar lever 14 and the control lever 16 on the other hand are formed as pivotal connections 18,19 in the form of hinges.
- pivotal connections 17,18,19 components of the pivot fitting 4 are each pivotally against each other and pivotally provided with each other.
- the swivel fitting 4 also defines two four-bar links.
- One of the four-bar links is formed by the adjusting levers 12, 13, the control lever 16 and the pivot lever 11.
- the other four-bar chain is formed by the handlebar lever 14, the control lever 16, the front lever 12 connected to the handlebar lever 14 and the support plate 15.
- the threaded rod 9 is extended from the motor housing 8, which is connected to the front lever 12.
- This lever 12 is thus raised and thus raises also connected to the lever 12 pivoting lever 11 at.
- the head part 2 is moved upwardly as a whole.
- the motor drive 5 could also act on the rear adjusting lever 13 of the swivel fitting 4 in order to effect a corresponding adjustment of the swivel fitting 4.
- front lever 12 also pivots the control lever 16 upwards, so that the connected to the other lever 13 end of the control lever 16 is moved upward, whereby the rear lever 13 also presses against the pivot lever 13 upwards , In this case, the rear lever 13 is moved further up than the motor drive 5 connected to the front lever 12.
- the levers 12,13 can thus in the réelleverschwenkten position of the head part 2, a lower position and in the pivoted position of the head part 2 an upper Take a position. In the swung-open position of the head part 2, this is raised and pivoted forward, while the head part 2 is lowered in the Cambridgeverschwenkten position and pivoted backwards.
- the pivoted position of the head part 2 is reached when the pin-shaped, provided between the adjusting levers 12,13 on the pivot lever 11 stop 20 comes into contact with the rear lever 13 and blocks the further pivoting of the pivot lever 11 forward. In order for the stop 20 also blocks the further adjustment of the rear control lever 13 upwards. From this end position of the swivel fitting 4 in the original end position according to Fig. 1 and 3 be pivoted. The swivel fitting 4 performs the opposite movement, while the threaded rod 9 of the motor drive 5 is moved downward.
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- Chairs For Special Purposes, Such As Reclining Chairs (AREA)
Abstract
Dargestellt und beschrieben ist ein Sitzmöbel (3), vorzugsweise Sessel oder Sofa, mit einer Rückenlehne (1) und einem motorisch verstellbaren Kopfteil (2), wobei das Kopfteil (2) von einem Schwenkhebel (11) getragen wird. Um eine einfachere Fertigung einer robusten motorischen Kopfteilverstellung zu ermöglichen, ist bei dem Sitzmöbel vorgesehen, dass der Schwenkhebel (11) separat über zwei Stellhebel (12,13) mit der Rückenlehne (1) schwenkbar verbunden ist, dass die beiden Stellhebel (12,13) gemeinsam über einen gemeinsamen Steuerhebel (16) mit der Rückenlehne (1) verbunden sind und dass zusätzlich ein Stellhebel (12,13) über einen Lenkerhebel (14) schwenkbar mit der Rückenlehne (1) verbunden ist.Shown and described is a chair (3), preferably armchair or sofa, with a backrest (1) and a motor-adjustable head part (2), wherein the head part (2) by a pivot lever (11) is worn. In order to enable a simpler production of a robust motorized head part adjustment, it is provided in the seating that the pivot lever (11) is pivotally connected separately via two adjusting levers (12,13) with the backrest (1), that the two adjusting levers (12,13 ) are connected together via a common control lever (16) with the backrest (1) and that in addition an adjusting lever (12,13) via a link lever (14) is pivotally connected to the backrest (1).
Description
Die Erfindung betrifft ein Sitzmöbel, vorzugsweise Sessel oder Sofa, mit einer Rückenlehne und einem motorisch verstellbaren Kopfteil, wobei das Kopfteil von einem Schwenkhebel getragen wird.The invention relates to a chair, preferably armchair or sofa, with a backrest and a motor-adjustable head part, wherein the head part is supported by a pivot lever.
Sitzmöbel, etwa in Form von Sofas oder Sesseln, mit gegenüber der Rückenlehne verschwenkbaren Kopfteilen sind in unterschiedlichen Ausgestaltungen bekannt und ermöglichen es dem Benutzer des Sitzmöbels, eine bequeme Sitz- und/oder Liegeposition einzunehmen. Dabei kann das Kopfteil, das auch als Kopfstütze bezeichnet wird, in eine Position gebracht werden, in der der Benutzer des Sitzmöbels seinen Kopf bequem gegen das Kopfteil lehnen kann. Die motorische Verstellung des Kopfteils gegenüber der Rückenlehne steigert den Komfort für den Benutzer des Sitzmöbels weiter, und zwar insbesondere wenn die Beweglichkeit des Benutzers eingeschränkt ist. Dann muss der Benutzer das Kopfteil hinter sich nicht mit den Händen ergreifen und verstellen. Es genügt vielmehr das Betätigen eines Tasters auf einem leicht zugänglichen Bedienteil.Seating, such as sofas or armchairs, with respect to the backrest pivoting headboards are known in different configurations and allow the user of the chair to take a comfortable sitting and / or lying position. In this case, the head part, which is also referred to as a headrest, be brought into a position in which the user of the chair can lean his head against the headboard comfortably. The motorized adjustment of the headboard relative to the backrest further enhances the comfort of the user of the chair, especially when the mobility of the user is limited. Then the user does not have to grasp and adjust the headboard behind them with their hands. Rather, it is sufficient to press a button on an easily accessible control panel.
Nachteilig an der motorischen Verstellung des Kopfteils gegenüber der Rückenlehne ist jedoch der hohe konstruktive Aufwand für den Schwenkbeschlag samt motorischem Antrieb. Entsprechende Sitzmöbel sind daher aufwendig zu fertigen und daher kostenintensiv. Dies gilt insbesondere für Sitzmöbel, die sehr robust ausgebildet werden sollen, um auch eine nicht bestimmungsgemäße Verwendung, etwa durch spielende Kinder, problemlos zu überstehen.However, a disadvantage of the motorized adjustment of the head part relative to the backrest is the high design complexity for the pivot fitting together with the motor drive. Corresponding seating furniture are therefore expensive to manufacture and therefore costly. This is especially true for seating, which should be made very robust to easily survive even improper use, such as by playing children.
Daher liegt der vorliegenden Erfindung die Aufgabe zugrunde, das Sitzmöbel der eingangs genannten und zuvor näher beschriebenen Art derart auszugestalten und weiterzubilden, dass eine einfachere Fertigung einer robusten motorischen Kopfteilverstellung möglich ist.Therefore, the present invention seeks to design the seating of the aforementioned type and previously described in such a way and further, that a simpler production of a robust motor Headboard adjustment is possible.
Diese Aufgabe ist bei einem Sitzmöbel nach dem Oberbegriff des Anspruchs 1 dadurch gelöst, dass der Schwenkhebel separat über zwei Stellhebel mit der Rückenlehne schwenkbar verbunden ist, dass die beiden Stellhebel gemeinsam über einen gemeinsamen Steuerhebel mit der Rückenlehne verbunden sind und dass zusätzlich ein Stellhebel über einen Lenkerhebel schwenkbar mit der Rückenlehne verbunden ist.This object is achieved in a chair according to the preamble of
Die Verbindung des Schwenkhebels über die beiden Stellhebel mit der Rückenlehne erlaubt ein Verschwenken des Schwenkhebels und eine stabile Abstützung desselben gegenüber der Rückenlehne. Der Schwenkhebel kann dabei einfach verschwenkt werden, indem die beiden Stellhebel unterschiedlich verstellt, insbesondere angehoben oder abgesenkt werden. Dazu können die beiden Stellhebel, insbesondere in Längsrichtung des Steuerhebels, voneinander beabstandet am Steuerhebel festgelegt sein. Ein Verschwenken des Steuerhebels führt dann nämlich zu einem entsprechend unterschiedlichen Verschwenken der Stellhebel relativ zueinander.The connection of the pivot lever on the two levers with the backrest allows pivoting of the pivot lever and a stable support of the same against the backrest. The pivot lever can be easily pivoted by the two levers adjusted differently, especially raised or lowered. For this purpose, the two adjusting levers, in particular in the longitudinal direction of the control lever, be spaced from each other fixed on the control lever. A pivoting of the control lever then leads to a correspondingly different pivoting of the actuating lever relative to each other.
Um die Stellhebel in einer vorbestimmten Weise relativ zueinander verstellen zu können, sind die beiden Stellhebel über einen gemeinsamen Steuerhebel mit der Rückenlehne verbunden. Des Weiteren können zusätzliche Freiheitsgrade bei der Verstellung des Schwenkbeschlags vermieden werden, wenn einer der Stellhebel über einen Lenkerhebel mit der Rückenlehne verbunden ist. Somit ergibt sich für jede Stellung des Kopfteils während dessen Verstellung von der zurückgeschwenkten in die aufgeschwenkte Stellung und zurück jeweils genau eine Stellung des Schwenkbeschlags (Freiheitsgrad 1).In order to adjust the levers in a predetermined manner relative to each other, the two levers are connected via a common control lever with the backrest. Furthermore, additional degrees of freedom in the adjustment of the swivel fitting can be avoided if one of the adjusting levers is connected to the backrest via a link lever. Thus, for each position of the head part during its adjustment of the swung back into the pivoted position and back each result exactly one position of the swivel fitting (degree of freedom 1).
Es sind letztlich neben dem Schwenkhebel lediglich vier weitere einfache Hebel erforderlich, die auf einfache Weise miteinander verbunden werden können. Auf diese Weise kann eine sehr robuste und wenig störungsanfällige motorische Kopfteilverstellung erreicht werden.There are ultimately only four more simple lever required in addition to the pivot lever, which can be easily connected to each other. In this way, a very robust and less prone to failure motorized head part adjustment can be achieved.
Das Kopfteil kann über die relative Verstellung der Stellhebel gegeneinander einerseits nach oben oder unten bewegt und andererseits gleichzeitig nach hinten oder vorne geschwenkt werden. Dass Verstellen des Kopfteils nach oben und nach vorne zur aufgeschwenkten Stellung führt zu einem Strecken des in der zurückverschwenkten Stellung des Kopfteils stärker umgebogenen Polsterabschnitts. Dies erlaubt ein Verstellen der Rückenlehne ohne Faltenbildung des Polsters. Ein reines Verschwenken des Kopfteils aus einer gegenüber der Rückenlehne abgewinkelten Stellung in eine Stellung, die im Wesentlichen parallel zur Rückenlehne ausgerichtet ist, würde im Falle einer Polsterung von Rückenlehne und Kopfteil zu einer Faltenbildung des in dieser Stellung überschüssigen Polstermaterials führen.The head part can be moved relative to each other on the one hand up or down on the relative adjustment of the lever and on the other hand, simultaneously pivoted backwards or forwards. That adjustment of the head part upwards and forwards to the pivoted-on position leads to a stretching of the upholstered section which is bent more strongly in the back-swiveled position of the head part. This allows adjustment of the backrest without wrinkling of the pad. A mere pivoting of the head part from a position which is angled relative to the backrest to a position which is aligned substantially parallel to the backrest would, in the case of upholstery of the backrest and head part, lead to wrinkling of the padding material which is in this position.
Neben den Stellhebeln, dem Schwenkhebel, dem Steuerhebel und dem Lenkerhebel könnte in Bezug auf den Schwenkbeschlag auf weitere Hebel verzichtet werden, um den Schwenkbeschlag zu vereinfachen und die Herstellungskosten zu senken. Bedarfsweise können aber grundsätzlich auch weitere Bauelemente in den Schwenkbeschlag integriert werden.In addition to the levers, the pivot lever, the control lever and the handlebar lever could be dispensed with in relation to the pivot fitting on further lever to simplify the swivel fitting and reduce manufacturing costs. If necessary, but in principle also other components can be integrated into the swivel fitting.
Bei einer ersten bevorzugten Ausgestaltung des Sitzmöbels ist der Schwenkhebel um eine gedachte Schwenkachse schwenkbar an einem Schwenkbeschlag gehalten, wobei die Schwenkachse vorzugsweise eine Drehachse ist. Diese Schwenkachse ergibt sich bei Betrachtung der rein schwenkenden Bewegungskomponente des Schwenkhebels beim Verstellen des Kopfteils, also ohne das Anheben, das Absenken sowie das Verschieben des Kopfteils nach vorne oder nach hinten. Da die schwenkende Bewegungskomponente des Schwenkhebels durch die Stellhebel hervorgerufen wird, ist es bevorzugt, wenn die gedachte Schwenkachse in etwa mittig zwischen den Angriffspunkten der Stellhebel am Schwenkhebel vorgesehen ist. Dadurch kann in konstruktiv einfacher Weise eine geeignete Verschwenkbarkeit des Kopfteils erreicht werden, die bedarfsweise eine gleichzeitige Höhenverstellung des Kopfteils ermöglicht, ohne dass dies einen unverhältnismäßig hohen konstruktiven Aufwand erfordern würde.In a first preferred embodiment of the seat of the pivot lever is pivotally supported about an imaginary pivot axis on a pivot fitting, wherein the pivot axis is preferably a rotation axis. This pivot axis results in consideration of the purely pivoting movement component of the pivot lever when adjusting the head part, ie without lifting, lowering and moving the headboard forward or backward. Since the pivoting movement component of the pivot lever is caused by the adjusting lever, it is preferred if the imaginary pivot axis is provided approximately centrally between the points of attack of the adjusting lever on the pivot lever. As a result, a suitable pivoting of the head part can be achieved in a structurally simple manner, which allows, if necessary, a simultaneous height adjustment of the head part, without this would require a disproportionately high design effort.
Aus konstruktiver Sicht und zur Sicherstellung einer geeigneten Verschwenkung des Kopfteils bietet es sich an, wenn der Lenkerhebel, der Steuerhebel, der mit dem Lenkerhebel verbundene Stellhebel und eine Tragplatte, an der der Lenkerhebel und der Steuerhebel festgelegt sind, eine Viergelenkkette bilden. Entsprechende Viergelenkketten können zudem recht robust ausgebildet werden. Aus den gleichen Gründen ist es dabei alternativ oder zusätzlich bevorzugt, wenn die beiden Stellhebel, der Steuerhebel und der Schwenkhebel eine Viergelenkkette bilden.From a constructive point of view and to ensure a suitable pivoting of the head part, it makes sense when the handlebar lever, the control lever, the lever connected to the handlebar lever and a support plate on which the handlebar lever and the control lever are fixed, form a four-bar chain. Corresponding four-link chains can also be made quite robust. For the same reasons, it is alternatively or additionally preferred if the two levers, the control lever and the pivot lever form a four-bar linkage.
Um den konstruktiven Aufwand für das Sitzmöbel gering zu halten und eine Ableitung hoher Kräfte sicherzustellen, die von einem Benutzer auf das Kopfteil aufgeprägt werden, kann der motorische Antrieb an einem Stellhebel angreifen. Dabei bietet es sich der Einfachheit weiter an, wenn der motorische Antrieb mit dem Stellhebel verbunden ist.In order to keep the design effort for the seating low and ensure a derivative of high forces that are imposed by a user on the headboard, the motor drive can engage a lever. In this case, it lends itself to the simplicity of further when the motor drive is connected to the lever.
Zur Einsparung von Bauraum und für eine gute Kraftableitung über den Schwenkbeschlag können die beiden Stellhebel im Wesentlichen in einer Ebene angeordnet sein. Alternativ oder zusätzlich ist es aus den gleichen Gründen bevorzugt, wenn der Lenkerhebel und der Steuerhebel im Wesentlichen in einer Ebene angeordnet sind. Dabei versteht es sich, dass die entsprechenden Bauelemente wegen ihrer räumlichen Ausdehnungen tatsächlich nicht vollständig in einer Ebene angeordnet sein können. Die Bauteile können aber nahe einer gemeinsamen Ebene angeordnet sein oder wenigstens teilweise in einer Ebene vorgesehen sein. Dies ist vorzugsweise mit der Anordnung im Wesentlichen in der gleichen Ebene gemeint.To save space and for a good power dissipation via the pivot fitting, the two levers can be arranged substantially in one plane. Alternatively or additionally, it is preferred for the same reasons, when the handlebar lever and the control lever are arranged substantially in one plane. It is understood that the corresponding components can actually not be arranged completely in one plane because of their spatial dimensions. However, the components may be arranged near a common plane or at least partially provided in a plane. This is preferably meant with the arrangement substantially in the same plane.
Ein Schwenkbeschlag, der wenigstens die Stellhebel, den Schwenkhebel, den Lenkerhebel und den Steuerhebel umfasst, weist vorzugsweise hinsichtlich der Verstellung des Kopfteils von einer zurückverschwenkten Stellung in eine aufgeschwenkte Stellung und zurück einen Freiheitsgrad von 1 auf. Somit definiert jede Stellung des Kopfteils über den gesamten Verstellbereich des Kopfteils genau eine Stellung des Schwenkbeschlags.A pivot fitting comprising at least the adjusting levers, the pivoting lever, the handlebar lever and the control lever preferably has a degree of freedom of 1 with respect to the adjustment of the head part from a pivoted-back position to a pivoted-back position. Thus, each position of the head part over the entire adjustment of the head part defines exactly one position of the swivel fitting.
Um eine oder zwei definierte Endpunkte bei der Verstellung des Kopfteils festlegen zu können, kann wenigstens ein Anschlag vorgesehen sein. Der Anschlag kann dabei in einer oberen Endstellung und/oder in einer unteren Endstellung mit einem der Stellhebel in Anlage sein, um die weitere Verstellung des mit dem Anschlag in Anlage befindlichen Stellhebels zu blockieren.In order to be able to define one or two defined end points during the adjustment of the head part, at least one stop can be provided. The stop may be in an upper end position and / or in a lower end position with one of the levers in abutment to block the further adjustment of the stop located in abutment control lever.
Besonders einfach und zweckmäßig ist es dabei, wenn derselbe Anschlag in der oberen Endstellung und in der unteren Endstellung an unterschiedlichen Stellhebeln anliegt. In der oberen Endstellung kann der Anschlag also an dem einen Stellhebel anliegen, während derselbe Anschlag in der unteren Endstellung an dem anderen Stellhebel anliegt. Dies lässt sich besonders einfach realisieren, wenn der Anschlag zwischen den beiden Stellhebeln positioniert ist.It is particularly simple and expedient here, if the same stop rests in the upper end position and in the lower end position of different levers. In the upper end position of the stop can thus rest on the one adjusting lever, while the same stop abuts in the lower end position of the other lever. This is particularly easy to implement when the stop is positioned between the two levers.
Schwenkverbindungen, insbesondere in Form von Drehgelenken, sind einfach und können große Kräfte aufnehmen bzw. übertragen. Daher ist es vorliegend bevorzugt, wenn der eine Stellhebel über jeweils ein Drehgelenk mit dem Schwenkhebel, dem Steuerhebel und/oder dem Lenkerhebel verbunden ist. Alternativ oder zusätzlich kann aus den gleichen Gründen der andere Stellhebel über jeweils ein Drehgelenk mit dem Schwenkhebel und/oder dem Lenkerhebel verbunden sein.Swivel joints, especially in the form of swivel joints, are simple and can absorb or transmit large forces. Therefore, it is presently preferred if the one lever is connected via a respective pivot joint with the pivot lever, the control lever and / or the handlebar lever. Alternatively or additionally, for the same reasons, the other adjusting lever can be connected to the pivot lever and / or the link lever via a respective pivot joint.
Eine weitere Vereinfachung des Sitzmöbels kann erreicht werden, indem der Lenkerhebel und der Steuerhebel über eine gemeinsame Tragplatte an der Rückenlehne gehalten sind.A further simplification of the seat can be achieved by the handlebar lever and the control lever are held on a common support plate on the backrest.
Zudem ist es einfach und kostengünstig, wenn der motorische Antrieb ein Linearantrieb ist. Dabei kann der motorische Antrieb vorzugsweise eine Gewindestange aufweisen, die infolge des Antriebs in der Längsrichtung der Gewindestange verfahren werden kann.Moreover, it is easy and inexpensive if the motor drive is a linear drive. In this case, the motor drive may preferably have a threaded rod, which can be moved as a result of the drive in the longitudinal direction of the threaded rod.
Dabei kann die Gewindestange an einer quer zum Sitzmöbel verlaufenden Antriebsstrebe angreifen. Diese kann quer zum Sitzmöbel verlaufen und zwei an gegenüberliegenden Seiten des Sitzmöbels vorgesehene Schwenkbeschläge verbinden. Die Schwenkbeschläge sind dabei vorzugsweise gleichartig, bedarfsweise symmetrisch zueinander ausgebildet. Auf diese Weise kann letztlich eine komfortablere Führung des Kopfteils über zwei Schwenkbeschläge erreicht aber auf einen zweiten motorischen Antrieb verzichtet werden.The threaded rod can engage a transverse to the seat extending drive strut. This can extend transversely to the seating and connect two provided on opposite sides of the chair pivot fittings. The swivel fittings are preferably similar, if necessary, formed symmetrically to each other. In this way, ultimately a more comfortable guidance of the head part can be achieved by means of two pivot fittings, but a second motor drive can be dispensed with.
Die Erfindung wird nachfolgend anhand einer lediglich ein Ausführungsbeispiel darstellenden Zeichnung näher erläutert. In der Zeichnung zeigt
- Fig.1
- die Konstruktion einer Rückenlehne und eines motorisch verstellbaren Kopfteils eines erfindungsgemäßen Sitzmöbels in einer zurückverschwenkten Stellung ohne Polster in einer perspektivischen Ansicht,
- Fig. 2
- die Konstruktion aus
Fig. 1 mit dem Kopfteil in einer aufgeschwenkten Stellung in perspektivischer Ansicht, - Fig. 3
- die Rückenlehne und das Kopfteil des Sitzmöbels aus
Fig.1 mit Polster und zurückverschwenktem Kopfteil in einer Seitenansicht und - Fig. 4
- die Rückenlehne und das Kopfteil aus
Fig. 3 mit aufgeschwenktem Kopfteil in einer Seitenansicht.
- Fig.1
- the construction of a backrest and a motor-adjustable head part of a seat according to the invention in a zurückverschwenkten position without cushion in a perspective view,
- Fig. 2
- the construction
Fig. 1 with the head part in a swung-open position in a perspective view, - Fig. 3
- the backrest and the headboard of the chair
Fig.1 with upholstery and zurückverschwenktem headboard in a side view and - Fig. 4
- the backrest and the headboard off
Fig. 3 with swung headboard in a side view.
In der
Der motorische Antrieb 5 ist als Linearantrieb ausgebildet und umfasst ein Motorengehäuse 8 und eine darin verschiebbar gehaltene Gewindestange 9. Die Gewindestange 9 ist schwenkbar mit einer quer zum Sitzmöbel 3 verlaufenden und die beiden Schwenkbeschläge 4 miteinander verbindenden Antriebsstrebe 10 verbunden.The
Jeder Schwenkbeschlag 4 zur Verstellung des Kopfteils 2 umfasst einen Schwenkhebel 11, der das Kopfteil 2 trägt und verschwenkt. Der Schwenkhebel 11 wird von zwei Stellhebeln 12,13 gehalten, die sich beim dargestellten und insoweit bevorzugten Sitzmöbel 3 im Wesentlichen vertikal nach unten erstrecken und etwa parallel zueinander verlaufen. Einer der Stellhebel 12 ist über einen Lenkerhebel 14 an einer mit der Rückenlehne 1 verbundenen Tragplatte 15 schwenkbar angelenkt. Zudem ist an der Tragplatte 15 ein Steuerhebel 16 schwenkbar festgelegt, der mit beiden Stellhebeln 12,13 verbunden ist, und zwar beabstandet zueinander. Die Verbindungen der Tragplatte 15 mit dem Lenkerhebel 14 und dem Steuerhebel 16 sind beim dargestellten und insoweit bevorzugten Sitzmöbel 3 als Schwenkverbindungen 17 in Form von Drehgelenken ausgebildet. Analog sind die Verbindungen zwischen den Stellhebeln 12,13 und dem Schwenkhebel 11 einerseits sowie dem Lenkerhebel 14 und dem Steuerhebel 16 andererseits als Schwenkverbindungen 18,19 in Form von Drehgelenken ausgebildet. Somit sind die jeweils über die Schwenkverbindungen 17,18,19 miteinander verbundenen Bauteile des Schwenkbeschlags 4 jeweils schwenkbar gegeneinander und schwenkbar untereinander vorgesehen.Each swivel fitting 4 for adjusting the
Der Schwenkbeschlag 4 definiert zudem zwei Viergelenkketten. Eine der Viergelenkketten wird durch die Stellhebel 12,13, den Steuerhebel 16 und den Schwenkhebel 11 gebildet. Die andere Viergelenkkette wird durch den Lenkerhebel 14, den Steuerhebel 16, den mit dem Lenkerhebel 14 verbundenen vorderen Stellhebel 12 und die Tragplatte 15 gebildet.The swivel fitting 4 also defines two four-bar links. One of the four-bar links is formed by the adjusting levers 12, 13, the
Zum Verstellen des Kopfteils 2 aus der in den
Der mit dem motorischen Antrieb 5 verbundene, vordere Stellhebel 12 schwenkt zudem den Steuerhebel 16 nach oben, so dass das mit dem weiteren Stellhebel 13 verbundene Ende des Steuerhebels 16 nach oben verstellt wird, wodurch der hintere Stellhebel 13 ebenfalls gegen den Schwenkhebel 13 nach oben drückt. Dabei wird der hintere Stellhebel 13 weiter nach oben bewegt als der mit dem motorischen Antrieb 5 verbundene, vordere Stellhebel 12. Die Stellhebel 12,13 können also in der zurückverschwenkten Stellung des Kopfteils 2 eine untere Stellung und in der aufgeschwenkten Stellung des Kopfteils 2 eine obere Stellung einnehmen. In der aufgeschwenkten Stellung des Kopfteils 2 ist dieses angehoben und nach vorne geschwenkt, während das Kopfteil 2 in der zurückverschwenkten Stellung abgesenkt und nach hinten geschwenkt ist.The connected to the
Da beide Stellhebel 12,13 voneinander beabstandet schwenkbar am Schwenkhebel 11 angreifen, die Schwenkverbindungen 19 der Stellhebel 12,13 mit dem Steuerhebel 16 also unterschiedlich lange Hebelarme mit der Schwenkverbindung 17 zwischen Steuerhebel 16 und Rückenlehne 1 aufweisen, wird der Schwenkhebel 11 nicht nur angehoben, sondern gleichzeitig nach vorne verschwenkt. Die Schwenkverbindung 19 des mit dem motorischen Antrieb 5 verbundenen vorderen Stellhebels 12 mit dem an der Rückenlehne 1 festgelegten Lenkerhebel 14 sorgt dafür, dass der Schwenkbeschlag 4 während der beschriebenen Verstellung in jeder Stellung des Kopfteils 2 genau eine Position einnehmen kann (Freiheitsgrad 1). So wird sichergestellt, dass zu jeder Höhe des Kopfteils 2 eine bestimmte Neigung des Kopfteils 2 gehört. Anders ausgedrückt wird sichergestellt, dass das Verschwenken des Kopfteils 2 von der zurückverschwenkten Stellung in die aufgeschwenkte Stellung stets in dergleichen Weise erfolgt.Since both
Die aufgeschwenkte Stellung des Kopfteils 2 ist erreicht, wenn der stiftförmige, zwischen den Stellhebeln 12,13 am Schwenkhebel 11 vorgesehene Anschlag 20 in Anlage mit dem hinteren Stellhebel 13 gelangt und die weitere Verschwenkung des Schwenkhebels 11 nach vorne blockiert. Damit blockiert der Anschlag 20 zudem die weitere Verstellung des hinteren Stellhebels 13 nach oben. Aus dieser Endstellung kann der Schwenkbeschlag 4 in die ursprüngliche Endstellung gemäß
In der Endstellung gemäß den
Da das Verstellen des Kopfteils 2 aus der zurückverschwenkten in die aufgeschwenkte Stellung mit einem Anheben des Kopfteils 2 einhergeht, wird das in den
Claims (14)
dadurch gekennzeichnet, dass der Schwenkhebel (11) separat über zwei Stellhebel (12,13) mit der Rückenlehne (1) schwenkbar verbunden ist, dass die beiden Stellhebel (12,13) gemeinsam über einen gemeinsamen Steuerhebel (16) mit der Rückenlehne (1) verbunden sind und dass zusätzlich ein Stellhebel (12,13) über einen Lenkerhebel (14) schwenkbar mit der Rückenlehne (1) verbunden ist.Seating furniture (3), preferably armchair or sofa, with a backrest (1) and a motor-adjustable head part (2), the head part (2) being supported by a pivot lever (11),
characterized in that the pivoting lever (11) is pivotally connected separately to the backrest (1) via two adjusting levers (12, 13) in such a way that the two adjusting levers (12, 13) together with the backrest (1) jointly via a common control lever (16) ) Are connected and that in addition an adjusting lever (12,13) via a link lever (14) pivotally connected to the backrest (1).
dadurch gekennzeichnet, dass der Schwenkhebel (11) um eine Schwenkachse schwenkbar ist und dass die Schwenkachse im Wesentlichen mittig zwischen den Angriffspunkten der Stellhebel (12,13) am Schwenkhebel (11) angeordnet ist.Seating furniture according to claim 1,
characterized in that the pivot lever (11) is pivotable about a pivot axis and that the pivot axis is arranged substantially centrally between the engagement points of the adjusting lever (12,13) on the pivot lever (11).
dadurch gekennzeichnet, dass der Lenkerhebel (14), der Steuerhebel (16), der mit dem Lenkerhebel (14) verbundene Stellhebel (12) und die Tragplatte (15) eine Viergelenkkette bilden.Seating furniture according to claim 1 or 2,
characterized in that the handlebar lever (14), the control lever (16), the control lever (12) connected to the control lever (14) and the support plate (15) form a four-bar chain.
dadurch gekennzeichnet, dass die beiden Stellhebel (12,13), der Steuerhebel (16) und der Schwenkhebel (11) eine Viergelenkkette bilden.Seating furniture according to one of claims 1 to 3,
characterized in that the two levers (12,13), the control lever (16) and the pivot lever (11) form a four-bar chain.
dadurch gekennzeichnet, dass der motorische Antrieb (5) an einem Stellhebel (12,13) angreift, insbesondere mit einem Stellhebel (12,13) verbunden ist.Seating furniture according to one of claims 1 to 4,
characterized in that the motor drive (5) on a control lever (12,13) engages, in particular with a control lever (12,13) is connected.
dadurch gekennzeichnet, dass die beiden Stellhebel (12,13) einerseits und/oder der Lenkerhebel (14) und der Steuerhebel (16) andererseits im Wesentlichen in einer Ebene angeordnet sind.Seating furniture according to one of claims 1 to 5,
characterized in that the two adjusting levers (12,13) on the one hand and / or the handlebar lever (14) and the control lever (16) on the other hand are arranged substantially in one plane.
dadurch gekennzeichnet, dass wenigstens die Stellhebel (12,13), der Schwenkhebel (11), der Lenkerhebel (14) und die Steuerhebel (16) einen Schwenkbeschlag (4) bilden und dass, vorzugsweise, der Schwenkbeschlag (4) einen Freiheitsgrad von 1 aufweist.Seating furniture according to one of claims 1 to 6,
characterized in that at least the adjusting levers (12,13), the pivoting lever (11), the link lever (14) and the control lever (16) form a pivot fitting (4) and that, preferably, the pivot fitting (4) has a degree of freedom of 1 having.
dadurch gekennzeichnet, dass ein Anschlag (20) vorgesehen ist, der in einer oberen Endstellung und/oder in einer unteren Endstellung mit einem der Stellhebel (12,13) in Anlage ist und die weitere Verstellung des Stellhebels (12,13) blockiert.Seating furniture according to one of claims 1 to 7,
characterized in that a stop (20) is provided which is in an upper end position and / or in a lower end position with one of the adjusting lever (12,13) in abutment and the further adjustment of the actuating lever (12,13) blocked.
dadurch gekennzeichnet, dass der Anschlag (20) in der oberen Endstellung und in der unteren Endstellung an unterschiedlichen Stellhebeln (12,13) anliegt.Seating furniture according to claim 8,
characterized in that the stop (20) rests in the upper end position and in the lower end position on different adjusting levers (12,13).
dadurch gekennzeichnet, dass der eine Stellhebel (12) über jeweils ein Drehgelenk mit dem Schwenkhebel (11), dem Steuerhebel (16) und/oder dem Lenkerhebel (14) verbunden ist.Seating furniture according to one of claims 1 to 9,
characterized in that the one adjusting lever (12) via a respective pivot joint with the pivot lever (11), the control lever (16) and / or the link lever (14) is connected.
dadurch gekennzeichnet, dass der andere Stellhebel (13) über jeweils ein Drehgelenk mit dem Schwenkhebel (11) und/oder dem Lenkerhebel (14) verbunden ist.Seating furniture according to one of claims 1 to 10,
characterized in that the other adjusting lever (13) via a respective pivot joint with the pivot lever (11) and / or the link lever (14) is connected.
dadurch gekennzeichnet, dass der Lenkerhebel (14) und der Steuerhebel (16) gemeinsam über eine Tragplatte (15) an der Rückenlehne (1) gehalten sind.Seating furniture according to one of claims 1 to 11,
characterized in that the handlebar lever (14) and the control lever (16) are held together by a support plate (15) on the backrest (1).
dadurch gekennzeichnet, dass der motorische Antrieb (5) ein Linearantrieb ist und dass, vorzugsweise, der motorischen Antrieb (5) eine, insbesondere in Längsrichtung verfahrbare, Gewindestange (9) aufweist.Seating furniture according to one of claims 1 to 12,
characterized in that the motor drive (5) is a linear drive and that, preferably, the motor drive (5) has a, in particular longitudinally movable, threaded rod (9).
dadurch gekennzeichnet, dass die Gewindestange (9) an einer quer zum Sitzmöbel (3) verlaufenden Antriebsstrebe (10) angreift und dass die Antriebsstrebe (10) zwei an gegenüberliegenden Seiten des Sitzmöbels (3) vorgesehene Schwenkbeschläge (4) verbindet.Seating furniture according to claim 13,
characterized in that the threaded rod (9) on a transversely to the seat (3) extending drive strut (10) engages and that the drive strut (10) connects two on opposite sides of the seat (3) provided pivot fittings (4).
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102014100306 | 2014-01-13 |
Publications (2)
Publication Number | Publication Date |
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EP2893843A1 true EP2893843A1 (en) | 2015-07-15 |
EP2893843B1 EP2893843B1 (en) | 2018-09-05 |
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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EP15150238.2A Active EP2893843B1 (en) | 2014-01-13 | 2015-01-07 | Seating furniture with head part which can be pivoted using a motor |
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Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
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CN105496053A (en) * | 2015-09-29 | 2016-04-20 | 浙江大学 | Seat chair capable of automatically adjusting chair back length according to inclination angle |
EP3031358A1 (en) * | 2014-12-08 | 2016-06-15 | Ferdinand Lusch Gmbh & Co. Kg. | Seat with swingable functional part |
CN106579833A (en) * | 2017-01-25 | 2017-04-26 | 礼恩派(嘉兴)有限公司 | Backrest assembly and seat with backrest assembly |
CN109588902A (en) * | 2018-12-27 | 2019-04-09 | 锐迈机械科技(吴江)有限公司 | Sofa headrest drive arrangement and sofa thereof |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
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DE102022122347A1 (en) | 2022-09-05 | 2024-03-07 | 3C Holding Gmbh | Pivot fitting |
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DE202006011894U1 (en) * | 2006-08-03 | 2006-10-05 | Mastrovalerio, Angelo | Head rest mounting system for seats comprises parallelogram lever system, lower lever being fixed to backrest in vertical position and upper lever to head rest, levers being linked by swiveling connecting plates |
DE202012009798U1 (en) * | 2012-10-15 | 2012-11-23 | Polinova Polstermöbel GmbH & Co. KG | Hub swivel fitting |
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2015
- 2015-01-07 EP EP15150238.2A patent/EP2893843B1/en active Active
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DE202006011894U1 (en) * | 2006-08-03 | 2006-10-05 | Mastrovalerio, Angelo | Head rest mounting system for seats comprises parallelogram lever system, lower lever being fixed to backrest in vertical position and upper lever to head rest, levers being linked by swiveling connecting plates |
DE202012009798U1 (en) * | 2012-10-15 | 2012-11-23 | Polinova Polstermöbel GmbH & Co. KG | Hub swivel fitting |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
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EP3031358A1 (en) * | 2014-12-08 | 2016-06-15 | Ferdinand Lusch Gmbh & Co. Kg. | Seat with swingable functional part |
US9901179B2 (en) | 2014-12-08 | 2018-02-27 | Ferdinand Lusch Gmbh & Co. Kg | Piece of seating furniture having a pivotable functional part |
CN105496053A (en) * | 2015-09-29 | 2016-04-20 | 浙江大学 | Seat chair capable of automatically adjusting chair back length according to inclination angle |
CN105496053B (en) * | 2015-09-29 | 2018-02-13 | 浙江大学 | The seat of chair back length is automatically adjusted according to angle of inclination |
CN106579833A (en) * | 2017-01-25 | 2017-04-26 | 礼恩派(嘉兴)有限公司 | Backrest assembly and seat with backrest assembly |
CN109588902A (en) * | 2018-12-27 | 2019-04-09 | 锐迈机械科技(吴江)有限公司 | Sofa headrest drive arrangement and sofa thereof |
CN109588902B (en) * | 2018-12-27 | 2020-12-18 | 锐迈机械科技(吴江)有限公司 | Sofa headrest drive arrangement and sofa thereof |
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