EP3621486B1 - Pivot fitting and item of furniture - Google Patents

Pivot fitting and item of furniture Download PDF

Info

Publication number
EP3621486B1
EP3621486B1 EP18722019.9A EP18722019A EP3621486B1 EP 3621486 B1 EP3621486 B1 EP 3621486B1 EP 18722019 A EP18722019 A EP 18722019A EP 3621486 B1 EP3621486 B1 EP 3621486B1
Authority
EP
European Patent Office
Prior art keywords
claw
lever
pivot fitting
fitting according
furniture
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
EP18722019.9A
Other languages
German (de)
French (fr)
Other versions
EP3621486A1 (en
Inventor
Herbert Fecker
Steffen Grathwol
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hettich Franke GmbH and Co KG
Original Assignee
Hettich Franke GmbH and Co KG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Hettich Franke GmbH and Co KG filed Critical Hettich Franke GmbH and Co KG
Priority to PL18722019T priority Critical patent/PL3621486T3/en
Publication of EP3621486A1 publication Critical patent/EP3621486A1/en
Application granted granted Critical
Publication of EP3621486B1 publication Critical patent/EP3621486B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47C—CHAIRS; SOFAS; BEDS
    • A47C20/00—Head -, foot -, or like rests for beds, sofas or the like
    • A47C20/04—Head -, foot -, or like rests for beds, sofas or the like with adjustable inclination
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47C—CHAIRS; SOFAS; BEDS
    • A47C20/00—Head -, foot -, or like rests for beds, sofas or the like
    • A47C20/02—Head -, foot -, or like rests for beds, sofas or the like of detachable or loose type
    • A47C20/023—Arm supports
    • 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
    • A47C7/54—Supports for the arms
    • A47C7/541—Supports for the arms of adjustable type

Definitions

  • the present invention relates to a swivel fitting according to the preamble of claim 1 and a piece of furniture with such a swivel fitting.
  • Generic swivel fittings have two levers that can be fixed relative to one another and which can be fixed via a clamping mechanism with which the two levers can be fixed in different angular positions within a predetermined angle relative to one another against a torque acting in the return direction and pivoted in the return direction when the clamping mechanism is deactivated.
  • Such a generic swivel fitting is, for example, from DE 10 2011 017 301 B4 famous. Such swivel fittings have proven themselves in practice.
  • the toothed disk itself has an external toothing into which a pawl engages, with which the swivel fitting can be locked in a predetermined position.
  • the toothed disc can be moved in the return direction despite being locked by the pawl together with a swiveling movement of the one lever, overcoming the frictional force with respect to the two clamping discs.
  • a disadvantage of this prior art mentioned above is that the triggering torque of such a friction-based solution for overload protection is very low, in particular in the range of 8 to 15 Nm, which often leads to unwanted triggering of the swivel fitting.
  • the object of the present invention is to further develop a swivel fitting in such a way that the swivel fitting has improved overload protection.
  • Another object of the invention is to provide a piece of furniture with which the functioning of components that are movable on the piece of furniture is improved.
  • the first object is achieved by a swivel fitting with the features of claim 1.
  • the second object is achieved by a piece of furniture with the features of claim 16.
  • the pivot fitting according to the invention in particular for movable furniture parts on furniture, has a first lever and a second lever, which are pivotably mounted to each other about a pivot axis from a basic position by a predetermined angle in an adjustment direction and a return direction.
  • the swivel fitting has a clamping mechanism with which the two levers can be fixed in different angular positions within the predetermined angle relative to one another against a torque acting in the return direction and can be pivoted in the return direction when the clamping mechanism is deactivated.
  • the swivel fitting also has an overload clutch with which the first lever can be swiveled in the return direction relative to the second lever when a predetermined torque is exceeded when the clamping mechanism is activated.
  • the overload clutch is designed as a claw clutch, which is arranged between the first lever and the second lever as a structural unit that is not directly integrated into the clamping or latching mechanism.
  • Such a claw coupling is characterized in particular by the fact that it only occurs at larger release torques, in particular of an order of magnitude triggers of at least 60 Nm, which largely prevents false tripping.
  • Such a claw coupling is further characterized in that it can be used with differently constructed swivel fittings, since it is not integrated directly into the clamping or latching mechanism of the swivel fitting.
  • the claw coupling has a housing, at least one spring element, in particular designed as a plate spring, a first claw plate coupled non-rotatably to a first lever and a second claw plate coupled non-rotatably to the second of the levers, as well as respective connecting elements for the axial connection of one lever to one Claw plate.
  • the spring element, the claw plates and parts of the connecting elements are received in the housing, with respective end pieces of the connecting elements protruding from the housing being coupled to a respective one of the levers.
  • the claw plates have respective elevations and depressions on annular surfaces facing one another in the assembled state.
  • the elevations and depressions are shaped in such a way that the elevations of one of the claw plates rest in a latching position in the depressions of the other claw plate and the elevations of one of the claw plates rest on the annular surface next to the depressions due to relative rotation to one another about the pivot axis.
  • the coding of the elevations and depressions is selected such that the latching position can be assumed at angular positions of the claw plates spaced 180 ° from one another, which enables the released claw clutch to be easily re-engaged.
  • the first claw plate has a central receptacle with a polygonal or toothed inner edge, in which a polygonal or externally toothed power shaft received in the lever head of the first lever is received in the assembled state, which ensures a simple connection of the claw coupling to the first lever .
  • an axially extending force shaft with a polygonal or toothed outer surface extends from an annular surface of the second claw plate facing away from the first claw plate, which in the assembled state engages in a polygonal or internally toothed receptacle formed in the lever head of the second lever.
  • the power shaft on the second claw plate is formed in one piece with the second claw plate.
  • the claw plate is designed in particular as a sintered component.
  • the housing of the claw coupling has a cylindrical outer surface, from the edge of which facing the first lever bending tongues extend axially before the assembly of the claw coupling, which after insertion of the at least one spring element, the claw plates and the connecting elements radially inward are bent so that the claw plates are pressed against one another by the at least one spring element under prestress.
  • annular surface of the first claw plate facing away from the second claw plate is provided with several depressions in which the radially inwardly bent tongues of the housing lie.
  • the first claw plate is non-rotatably coupled to the housing of the claw coupling, so that the second claw plate can rotate out of the lock in the event of an overload.
  • connecting elements are provided which are preferably designed as rivets.
  • rivet heads of the connecting elements are preferably received in a recess of the second claw plate in a recess in the second claw plate in a mutually supporting manner.
  • the furniture according to the invention is characterized by at least one swivel fitting as described above.
  • the reference numeral 1 denotes a variant of a swivel fitting according to the invention as a whole.
  • a swivel fitting 1 is used in particular to enable a swivel movement of movable furniture parts on furniture, such as an armrest 103 or a backrest, headrest or footrest of a piece of furniture 100 designed as seating or reclining furniture, as shown in FIG Figures 11-13 is shown.
  • the swivel fitting 1 has, as in the Figures 1 to 4 shown, a first lever 2 and a second lever 3.
  • the two levers 2, 3 are mounted pivotably relative to one another about a pivot axis D from a basic position by a predetermined angle ⁇ in an adjustment direction V and a return direction R.
  • a clamping or latching mechanism 23 of the swivel fitting 1 arranged here between two lever heads 22a and 22b is designed so that the two levers 2, 3 can be fixed in different angular positions within the predetermined angle ⁇ relative to one another against a torque acting in the return direction R and with the clamping deactivated - Or latching mechanism 23 can be pivoted in the return direction R.
  • the swivel fitting 1 has an overload clutch with which the first lever 2 relative to the second lever 3 when a predetermined torque is exceeded when the clamping or locking mechanism is activated 23 can be pivoted in the return direction R.
  • the overload clutch is designed here as a claw clutch 4, which is a structural unit between the first lever 2 and the second lever 3, as shown in FIG Figures 1 and 4th is arranged.
  • the claw coupling 4 has a housing 41 in which two spring elements 42, preferably designed as cup springs, two claw plates and connecting elements 45, 46 for the axial connection of a lever 2, 3 with one of the claw plates 43, 44 are accommodated.
  • the connecting elements 45, 46 protrude from the housing 41 with end pieces.
  • the first claw plate 43 is non-rotatably coupled to a power shaft 24 coupled to the clamping mechanism 23.
  • the second jaw plate 44 in detail in FIGS Figures 10a) and 10b ) shown is coupled to the second lever 3 in a rotationally fixed manner.
  • the housing 41 of the dog clutch 4 is shown in detail in Figure 8 shown.
  • the housing 41 of the claw coupling 4 has a cylindrical outer surface 411, from the edge of which facing the first lever 2 bending tongues 414 extend axially before the claw coupling is assembled. This state before the assembly of the dog clutch 4 is shown in FIG Figure 8 shown.
  • the bending tongues 414 are bent radially inward such that the claw plates 43, 44 are pressed against one another by the spring elements 42 under pretension.
  • the claw clutch 4 is preferably set in such a way that the torque to be exerted is in the range from 60 Nm to 120 Nm.
  • a central recess 413 is provided, through which a coupling piece 449 coupling the second claw plate 44 to the second lever 3 can be pushed.
  • the two claw plates 43, 44 are in the Figures 9a, 9b and 10a and 10b shown in detail.
  • the first claw plate 43 has a plurality of elevations 432, 433 on an annular surface 431 facing the second claw plate 44.
  • the elevations 432, 433 have radial side edges.
  • the width of the elevations 432, 433 in the circumferential direction of the annular surface 431 are different from one another. This results in a coding of the elevations 432, 433 such that the latching position of the claw plates 43, 44 in relation to one another in the exemplary embodiment shown here can only be assumed at angular positions of the claw plates 43, 44 spaced 180 ° from one another.
  • the second claw plate 44 has depressions 442, 443 corresponding to the dimensions of the elevations 432, 433, so that the elevations 432, 433 of the first claw plate 43 rest in a latching position in the recesses 442, 443 of the second claw plate 44.
  • the two claw plates 43, 44 are axially spaced by the amount of overlap of the claws against the spring force and rotated relative to one another about the pivot axis D in such a way that the elevations 432 , 433 rest on the annular surface 441 next to the depressions 442, 443 of the second claw plate 44.
  • the radial side edges of the elevations 432, 433 and the depressions 442, 443 are preferably chamfered and / or rounded.
  • the annular surface 435 of the first claw plate 43 facing away from the second claw plate 44 has several recesses 436 in which the radially inwardly bent tongues 414 of the housing 41 are located.
  • the first claw plate 43 has a central receptacle 437 with a polygonal or toothed inner edge, in which, in the assembled state, a polygonal or externally toothed power shaft 24 received in the lever head 22 of the first lever 2 is received.
  • the second claw plate 44 shown here extends from an annular surface 445 of the second claw plate 44 facing away from the first claw plate 43, an axially extending power shaft 447 with a polygonal or toothed outer surface, which in the assembled state turns into a lever head 32 of the second Lever 3 molded polygonal or internally toothed receptacle engages, as in the Figures 3 and 4th is shown.
  • the connecting elements 45, 46 serve to axially fix the claw coupling 4 with the two levers 2, 3.
  • the connecting elements 45, 46 are preferably designed as rivets.
  • rivet heads 452, 462 of the connecting elements 45, 46 are mutually supportive against one another.
  • the rivet heads 452, 462 are located in a recess 444 in the second claw plate 44.
  • rivets instead of the rivet, it is also conceivable to use screws or other connecting elements.
  • screws or other connecting elements For example, bolts with a groove and a locking ring can also be used as connecting elements.
  • the connecting elements can also each be designed in one piece with one of the claw plates 43, 44.
  • the two claw plates 43, 44 are preferably designed as sintered components.
  • the power shaft 447 of the second claw plate 44 is preferably provided with a round cylindrical neck piece 446, onto which the spring elements 42 are threaded in the assembled state.
  • the first lever 2 with the claw coupling 4 can also be coupled directly to a movable furniture part.
  • a bracket or a profile of the movable furniture part is coupled to the power shaft 447 and secured by the connecting element 45.

Landscapes

  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Nursing (AREA)
  • Mechanical Operated Clutches (AREA)
  • Pivots And Pivotal Connections (AREA)
  • Chairs For Special Purposes, Such As Reclining Chairs (AREA)

Description

Die vorliegende Erfindung betrifft einen Schwenkbeschlag gemäß dem Oberbegriff des Anspruchs 1 sowie ein Möbel mit einem solchen Schwenkbeschlag.The present invention relates to a swivel fitting according to the preamble of claim 1 and a piece of furniture with such a swivel fitting.

Gattungsgemäße Schwenkbeschläge weisen zwei relativ zueinander fixierbare Hebel auf, die über einen Klemmmechanismus, mit dem die beiden Hebel in unterschiedlichen Winkelstellungen innerhalb eines vorbestimmten Winkels relativ zueinander entgegen eines in Rückstellrichtung wirkenden Drehmoments fixierbar und bei deaktiviertem Klemmmechanismus in Rückstellrichtung verschwenkbar sind.Generic swivel fittings have two levers that can be fixed relative to one another and which can be fixed via a clamping mechanism with which the two levers can be fixed in different angular positions within a predetermined angle relative to one another against a torque acting in the return direction and pivoted in the return direction when the clamping mechanism is deactivated.

Ein solcher gattungsgemäßer Schwenkbeschlag ist beispielsweise aus der DE 10 2011 017 301 B4 bekannt. Derartige Schwenkbeschläge haben sich in der Praxis an sich bewährt.Such a generic swivel fitting is, for example, from DE 10 2011 017 301 B4 famous. Such swivel fittings have proven themselves in practice.

Zur Vermeidung von Beschädigungen infolge einer Überbelastung eines solchen Schwenkbeschlages ist bei dem Schwenkbeschlag gemäß DE 10 2011 017 301 B4 eine Zahnscheibe des Klemmmechanismus zwischen zwei Reibscheiben gehalten.To avoid damage as a result of overloading such a swivel fitting, the swivel fitting according to FIG DE 10 2011 017 301 B4 a toothed disk of the clamping mechanism is held between two friction disks.

Die Zahnscheibe selbst weist eine Außenverzahnung auf, in die eine Klinke eingreift, mit der der Schwenkbeschlag in einer vorbestimmten Stellung verrastet werden kann.The toothed disk itself has an external toothing into which a pawl engages, with which the swivel fitting can be locked in a predetermined position.

Bei Überbelastung des Schwenkbeschlages kann sich die Zahnscheibe trotz Verrastung durch die Klinke zusammen mit einer Schwenkbewegung des einen Hebels unter Überwindung der Reibkraft gegenüber der beiden Klemmscheiben in Rückstellrichtung bewegt werden.If the swivel fitting is overloaded, the toothed disc can be moved in the return direction despite being locked by the pawl together with a swiveling movement of the one lever, overcoming the frictional force with respect to the two clamping discs.

Als nachteilig hat sich bei diesem vorgenannten Stand der Technik erwiesen, dass das Auslösemoment einer solchen reibungsgebundenen Lösung für einen Überlastschutz sehr niedrig, insbesondere im Bereich von 8 bis 15 Nm liegt, was häufig zu ungewolltem Auslösen des Schwenkbeschlages führt.A disadvantage of this prior art mentioned above is that the triggering torque of such a friction-based solution for overload protection is very low, in particular in the range of 8 to 15 Nm, which often leads to unwanted triggering of the swivel fitting.

Aus der US 4 186 905 A ist ein Schwenkbeschlag für einen Rückspiegel eines Lastkraftwagens bekannt, der eine Klauenkupplung aufweist, mit der ermöglicht ist, den Rückspiegel in unterschiedlichen Rastpositionen zu halten.From the U.S. 4,186,905 A a swivel fitting for a rearview mirror of a truck is known which has a claw coupling with which it is possible to hold the rearview mirror in different locking positions.

Aus der DE 20 2006 004 076U1 ist ein Rastgelenk bekannt, bei dem einer größeren Belastung dadurch begegnet wird, dass eine Flächenpressung aneinander liegender Zahnflanken von Getriebezähnen durch Aneinanderliegen möglichst vieler Zähne in einer Rücklaufsperrposition reduziert wird.From the DE 20 2006 004 076U1 a latching joint is known in which a greater load is countered by reducing the surface pressure of tooth flanks of gear teeth lying against one another by contacting as many teeth as possible in a non-return position.

Aufgabe der vorliegenden Erfindung ist es, einen Schwenkbeschlag dahingehend weiterzuentwickeln, dass der Schwenkbeschlag über einen verbesserten Überlastschutz verfügt.The object of the present invention is to further develop a swivel fitting in such a way that the swivel fitting has improved overload protection.

Weitere Aufgabe der Erfindung ist es, ein Möbel bereitzustellen, mit dem die Funktionsweise von an dem Möbel beweglichen Bauteilen verbessert ist.Another object of the invention is to provide a piece of furniture with which the functioning of components that are movable on the piece of furniture is improved.

Die erste Aufgabe wird durch einen Schwenkbeschlag mit den Merkmalen des Anspruchs 1 gelöst.The first object is achieved by a swivel fitting with the features of claim 1.

Die zweite Aufgabe wird durch ein Möbel mit den Merkmalen des Anspruchs 16 gelöst.The second object is achieved by a piece of furniture with the features of claim 16.

Der erfindungsgemäße Schwenkbeschlag, insbesondere für bewegliche Möbelteile an Möbeln, weist einen ersten Hebel und einen zweiten Hebel auf, die um eine Schwenkachse aus einer Grundstellung heraus um einen vorbestimmten Winkel in einer Verstellrichtung und einer Rückstellrichtung schwenkbar zueinander gelagert sind.The pivot fitting according to the invention, in particular for movable furniture parts on furniture, has a first lever and a second lever, which are pivotably mounted to each other about a pivot axis from a basic position by a predetermined angle in an adjustment direction and a return direction.

Des Weiteren weist der Schwenkbeschlag einen Klemmmechanismus auf, mit dem die beiden Hebel in unterschiedlichen Winkelstellungen innerhalb des vorbestimmten Winkels relativ zueinander entgegen eines in Rückstellrichtung wirkenden Drehmoments fixierbar und bei deaktiviertem Klemmmechanismus in Rückstellrichtung verschwenkbar sind.Furthermore, the swivel fitting has a clamping mechanism with which the two levers can be fixed in different angular positions within the predetermined angle relative to one another against a torque acting in the return direction and can be pivoted in the return direction when the clamping mechanism is deactivated.

Der Schwenkbeschlag weist des Weiteren eine Überlastkupplung auf, mit der der erste Hebel relativ zum zweiten Hebel bei Überschreiten eines vorbestimmten Drehmoments bei aktiviertem Klemmmechanismus in Rückstellrichtung verschwenkbar ist.The swivel fitting also has an overload clutch with which the first lever can be swiveled in the return direction relative to the second lever when a predetermined torque is exceeded when the clamping mechanism is activated.

Die Überlastkupplung ist als Klauenkupplung ausgebildet, die als nicht direkt in den Klemm- oder Rastmechanismus integrierte Baueinheit zwischen dem ersten Hebel und dem zweiten Hebel angeordnet ist.The overload clutch is designed as a claw clutch, which is arranged between the first lever and the second lever as a structural unit that is not directly integrated into the clamping or latching mechanism.

Durch die Montage einer solchen Klauenkupplung zwischen dem ersten Hebel und zweiten Hebel wird ein zuverlässiger Überlastschutz gewährleistet.The installation of such a claw coupling between the first lever and the second lever ensures reliable overload protection.

Eine solche Klauenkupplung zeichnet sich insbesondere dadurch aus, dass diese erst bei größeren Auslösemomenten, insbesondere in einer Größenordnung von wenigstens 60 Nm auslöst, wodurch Fehlauslösungen weitgehend vermieden werden.Such a claw coupling is characterized in particular by the fact that it only occurs at larger release torques, in particular of an order of magnitude triggers of at least 60 Nm, which largely prevents false tripping.

Eine solche Klauenkupplung zeichnet sich des Weiteren dadurch aus, dass sie bei unterschiedlich aufgebauten Schwenkbeschlägen einsetzbar ist, da sie nicht direkt in den Klemm- oder Rastmechanismus des Schwenkbeschlags integriert ist.Such a claw coupling is further characterized in that it can be used with differently constructed swivel fittings, since it is not integrated directly into the clamping or latching mechanism of the swivel fitting.

Vorteilhafte Ausführungsvarianten der Erfindung sind Gegenstand der Unteransprüche.Advantageous variant embodiments of the invention are the subject of the subclaims.

Gemäß einer vorteilhaften Ausführungsvariante weist die Klauenkupplung ein Gehäuse auf, wenigstens ein insbesondere als Tellerfeder ausgebildetes Federelement, eine mit einem ersten Hebel drehfest gekoppelte erste Klauenplatte und eine mit dem zweiten der Hebel drehfest gekoppelte zweite Klauenplatte sowie jeweilige Verbindungselemente zur axialen Verbindung jeweils eines Hebels mit einer Klauenplatte.According to an advantageous embodiment variant, the claw coupling has a housing, at least one spring element, in particular designed as a plate spring, a first claw plate coupled non-rotatably to a first lever and a second claw plate coupled non-rotatably to the second of the levers, as well as respective connecting elements for the axial connection of one lever to one Claw plate.

Das Federelement, die Klauenplatten und Teilstücke der Verbindungselemente sind dabei in dem Gehäuse aufgenommen, wobei jeweilige Endstücke der Verbindungselemente aus dem Gehäuse hervorstehend mit einem jeweiligen der Hebel gekoppelt sind.The spring element, the claw plates and parts of the connecting elements are received in the housing, with respective end pieces of the connecting elements protruding from the housing being coupled to a respective one of the levers.

Die Klauenplatten weisen gemäß einer Ausführungsvariante jeweilige Erhebungen und Vertiefungen auf im montierten Zustand einander zugewandten Ringflächen auf.According to one embodiment variant, the claw plates have respective elevations and depressions on annular surfaces facing one another in the assembled state.

Dabei sind die Erhebungen und Vertiefungen derart geformt, dass die Erhebungen der einen der Klauenplatte in einer Raststellung in den Vertiefungen der anderen Klauenplatte einliegen und durch relative Verdrehung zueinander um die Schwenkachse die Erhebungen der einen der Klauenplatten auf der Ringfläche neben den Vertiefungen aufliegen.The elevations and depressions are shaped in such a way that the elevations of one of the claw plates rest in a latching position in the depressions of the other claw plate and the elevations of one of the claw plates rest on the annular surface next to the depressions due to relative rotation to one another about the pivot axis.

Gemäß einer weiteren Ausführungsvariante ist die Codierung der Erhebungen und Vertiefungen derart gewählt, dass die Raststellung an um 180° voneinander beabstandeten Winkelstellungen der Klauenplatten zueinander einnehmbar ist, was ein einfaches Wiedereinrasten der ausgelösten Klauenkupplung ermöglicht.According to a further embodiment variant, the coding of the elevations and depressions is selected such that the latching position can be assumed at angular positions of the claw plates spaced 180 ° from one another, which enables the released claw clutch to be easily re-engaged.

Nach einer weiteren Ausführungsvariante der Erfindung weist die erste Klauenplatte eine zentrale Aufnahme mit polygonalem oder verzahntem Innenrand auf, in der im montierten Zustand eine im Hebelkopf des ersten Hebels aufgenommene polygonale oder außenverzahnte Kraftwelle aufgenommen ist, was eine einfache Anbindung der Klauenkupplung an den ersten Hebel gewährleistet.According to a further embodiment of the invention, the first claw plate has a central receptacle with a polygonal or toothed inner edge, in which a polygonal or externally toothed power shaft received in the lever head of the first lever is received in the assembled state, which ensures a simple connection of the claw coupling to the first lever .

Nach einer weiteren Ausführungsvariante erstreckt sich von einer von der ersten Klauenplatte abgewandten Ringfläche der zweiten Klauenplatte eine axial erstreckende Kraftwelle mit polygonaler oder verzahnter Mantelfläche, die im montierten Zustand in eine im Hebelkopf des zweiten Hebels angeformte polygonale oder innenverzahnte Aufnahme eingreift.According to a further embodiment variant, an axially extending force shaft with a polygonal or toothed outer surface extends from an annular surface of the second claw plate facing away from the first claw plate, which in the assembled state engages in a polygonal or internally toothed receptacle formed in the lever head of the second lever.

Dadurch ist eine Anbindung der aus dem ersten Hebel hervorstehenden Kraftwelle mit dem zweiten Hebel und der Zwischenschaltung der Klauenkupplung gewährleistet.This ensures that the power shaft protruding from the first lever is connected to the second lever and the interconnection of the claw clutch.

Besonders bevorzugt ist die Kraftwelle an der zweiten Klauenplatte einstückig mit der zweiten Klauenplatte ausgebildet. Die Klauenplatte ist dabei insbesondere als Sinterbauteil ausgebildet.Particularly preferably, the power shaft on the second claw plate is formed in one piece with the second claw plate. The claw plate is designed in particular as a sintered component.

Nach einer weiteren Ausführungsvariante der Erfindung weist das Gehäuse der Klauenkupplung eine zylindrische Mantelfläche auf, von deren dem ersten Hebel zugewandten Rand sich vor dem Zusammenbau der Klauenkupplung Biegezungen axial erstrecken, die nach Einsetzen des wenigstens einen Federelements, der Klauenplatten und der Verbindungselemente radial derart nach innen umgebogen sind, dass die Klauenplatten von dem wenigstens einen Federelement unter Vorspannung aneinander gedrückt sind.According to a further embodiment of the invention, the housing of the claw coupling has a cylindrical outer surface, from the edge of which facing the first lever bending tongues extend axially before the assembly of the claw coupling, which after insertion of the at least one spring element, the claw plates and the connecting elements radially inward are bent so that the claw plates are pressed against one another by the at least one spring element under prestress.

Mithilfe dieser radial nach innen gebogenen Zungen ist in einfacher Weise das für das Ausrasten der Klauenkupplung notwendige Drehmoment einstellbar.With the help of these radially inwardly bent tongues, the torque required for disengaging the dog clutch can be adjusted in a simple manner.

Um eine definierte Verdrehung nur einer der Klauenplatten zu gewährleisten, ist gemäß einer weiteren bevorzugten Ausführungsvariante eine der zweiten Klauenplatte abgewandte Ringfläche der ersten Klauenplatte mit mehreren Vertiefungen versehen, in der die radial nach innen gebogenen Zungen des Gehäuses einliegen.In order to ensure a defined rotation of only one of the claw plates, according to a further preferred embodiment variant, an annular surface of the first claw plate facing away from the second claw plate is provided with several depressions in which the radially inwardly bent tongues of the housing lie.

Dadurch ist die erste Klauenplatte drehfest mit dem Gehäuse der Klauenkupplung gekoppelt, so dass sich die zweite Klauenplatte im Überlastungsfall aus der Verrastung herausdrehen kann.As a result, the first claw plate is non-rotatably coupled to the housing of the claw coupling, so that the second claw plate can rotate out of the lock in the event of an overload.

Zur axialen Verbindung der Klauenplatten mit dem jeweiligen Hebel sind Verbindungselemente vorgesehen, die bevorzugt als Niete ausgebildet sind.For the axial connection of the claw plates to the respective lever, connecting elements are provided which are preferably designed as rivets.

Dabei sind bevorzugt Nietköpfe der Verbindungselemente gegenseitig abstützend aneinander liegend in einer Aussparung der zweiten Klauenplatte aufgenommen.In this case, rivet heads of the connecting elements are preferably received in a recess of the second claw plate in a recess in the second claw plate in a mutually supporting manner.

Das erfindungsgemäße Möbel zeichnet sich durch wenigstens einen wie oben beschriebenen Schwenkbeschlag aus.The furniture according to the invention is characterized by at least one swivel fitting as described above.

Nachfolgend werden Ausführungsbeispiele der Erfindung anhand der beiliegenden Zeichnungen näher erläutert. Es zeigen:

Figur 1
eine perspektivische Ansicht einer Ausführungsvariante eines erfindungsgemäßen Schwenkbeschlages,
Figuren 2, 3 und 4
unterschiedliche Ansichten des Schwenkbeschlags aus Figur 1,
Figuren 5a und 5b
unterschiedliche perspektivische Ansichten der Klauenkupplung
Figur 6
eine Schnittansicht durch die Klauenkupplung gemäß Figuren 5a oder 5b,
Figur 7
eine perspektivische Explosionsdarstellung der Klauenkupplung,
Figur 8
eine perspektivische Einzeldarstellung des Gehäuses der Klauenkupplung vor der Montage,
Figuren 9a und 9b
jeweilige perspektivische Darstellungen einer ersten Klauenplatte der Klauenkupplung,
Figuren 10a und 10b
perspektivische Darstellungen der zweiten Klauenplatte der Klauenkupplung und
Figuren 11 bis 13
perspektivische Darstellungen eines Möbels mit Armlehne in unterschiedlichen Rastpositionen.
Exemplary embodiments of the invention are explained in more detail below with reference to the accompanying drawings. Show it:
Figure 1
a perspective view of an embodiment of a swivel fitting according to the invention,
Figures 2, 3 and 4
different views of the swivel fitting Figure 1 ,
Figures 5a and 5b
different perspective views of the claw coupling
Figure 6
a sectional view through the dog clutch according to Figures 5a or 5b ,
Figure 7
a perspective exploded view of the claw coupling,
Figure 8
a perspective individual representation of the housing of the claw coupling before assembly,
Figures 9a and 9b
respective perspective representations of a first claw plate of the claw coupling,
Figures 10a and 10b
perspective views of the second claw plate of the claw coupling and
Figures 11 to 13
perspective representations of a piece of furniture with armrests in different locking positions.

In der nachfolgenden Figurenbeschreibung beziehen sich Begriffe wie oben, unten, links, rechts, vorne, hinten usw. ausschließlich auf die in den jeweiligen Figuren gewählte beispielhafte Darstellung und Position des Schwenkbeschlages, der Hebel, der Klauenkupplung, der Klauenplatte, des Gehäuses und dergleichen. Diese Begriffe sind nicht einschränkend zu verstehen, d.h., durch verschiedene Arbeitsstellungen oder die spiegelsymmetrische Auslegung oder dergleichen können sich diese Bezüge ändern.In the following description of the figures, terms such as above, below, left, right, front, rear, etc. relate exclusively to the exemplary representation and position of the swivel fitting, the lever, the claw coupling, the claw plate, the housing and the like selected in the respective figures. These terms are not to be understood as restrictive, i.e. these references may change due to different working positions or the mirror-symmetrical design or the like.

In den Figuren 1-4 ist mit dem Bezugszeichen 1 insgesamt eine Ausführungsvariante eines erfindungsgemäßen Schwenkbeschlags bezeichnet. Ein solcher Schwenkbeschlag 1 dient insbesondere der Ermöglichung einer Schwenkbewegung beweglicher Möbelteile an Möbeln, wie beispielsweise einer Armlehne 103 oder einer Rückenlehne, Kopfstütze oder Fußstütze eines als Sitz- oder Liegemöbel ausgebildeten Möbels 100, wie es in den Figuren 11-13 gezeigt ist.In the Figures 1-4 the reference numeral 1 denotes a variant of a swivel fitting according to the invention as a whole. Such a swivel fitting 1 is used in particular to enable a swivel movement of movable furniture parts on furniture, such as an armrest 103 or a backrest, headrest or footrest of a piece of furniture 100 designed as seating or reclining furniture, as shown in FIG Figures 11-13 is shown.

Der Schwenkbeschlag 1 weist, wie in den Figuren 1 bis 4 gezeigt, einen ersten Hebel 2 und einen zweiten Hebel 3 auf. Die beiden Hebel 2, 3 sind um eine Schwenkachse D aus einer Grundstellung heraus um einen vorbestimmten Winkel α in einer Verstellrichtung V und einer Rückstellrichtung R schwenkbar zueinander gelagert.The swivel fitting 1 has, as in the Figures 1 to 4 shown, a first lever 2 and a second lever 3. The two levers 2, 3 are mounted pivotably relative to one another about a pivot axis D from a basic position by a predetermined angle α in an adjustment direction V and a return direction R.

Ein hier zwischen zwei Hebelköpfen 22a und 22b angeordneter Klemm- oder Rastmechanismus 23 des Schwenkbeschlags 1 ist so ausgeführt, dass die beiden Hebel 2, 3 in unterschiedlichen Winkelstellungen innerhalb des vorbestimmten Winkels α relativ zueinander entgegen einer in Rückstellrichtung R wirkenden Drehmoments fixierbar und bei deaktiviertem Klemm- oder Rastmechanismus 23 in Rückstellrichtung R verschwenkbar sind.A clamping or latching mechanism 23 of the swivel fitting 1 arranged here between two lever heads 22a and 22b is designed so that the two levers 2, 3 can be fixed in different angular positions within the predetermined angle α relative to one another against a torque acting in the return direction R and with the clamping deactivated - Or latching mechanism 23 can be pivoted in the return direction R.

Dies ermöglicht beispielsweise die Einstellung einer Armlehne 103 oder einer Kopfstütze eines Möbels 100, bei der die Armlehne 103 bzw. die Kopfstütze mit dem zweiten Hebel 3 verbunden ist, um diese in eine für den Benutzer angenehme Position zu verschwenken und in der gewünschten Position zu verrasten.This enables, for example, the setting of an armrest 103 or a headrest of a piece of furniture 100, in which the armrest 103 or the headrest is connected to the second lever 3 in order to pivot it into a position that is comfortable for the user and to lock it in the desired position .

Um den Schwenkbeschlag 1 sowie die Möbelteile vor einer auftretenden Überlast und dadurch bedingten Zerstörung oder Beschädigung zu schützen, weist der Schwenkbeschlag 1 eine Überlastkupplung auf, mit der der erste Hebel 2 relativ zum zweiten Hebel 3 bei Überschreiten eines vorbestimmten Drehmoments bei aktiviertem Klemm- oder Rastmechanismus 23 in Rückstellrichtung R verschwenkbar ist.In order to protect the swivel fitting 1 and the furniture parts from an overload and the destruction or damage caused by it, the swivel fitting 1 has an overload clutch with which the first lever 2 relative to the second lever 3 when a predetermined torque is exceeded when the clamping or locking mechanism is activated 23 can be pivoted in the return direction R.

Die Überlastkupplung ist hier als Klauenkupplung 4 ausgebildet, die als Baueinheit zwischen dem ersten Hebel 2 und dem zweiten Hebel 3, wie gezeigt in den Figuren 1 und 4 angeordnet ist.The overload clutch is designed here as a claw clutch 4, which is a structural unit between the first lever 2 and the second lever 3, as shown in FIG Figures 1 and 4th is arranged.

Wie in den Figuren 4 bis 10b) gezeigt ist, weist die Klauenkupplung 4 ein Gehäuse 41 auf, in dem zwei bevorzugt als Tellerfedern ausgebildete Federelemente 42, zwei Klauenplatten und Verbindungselemente 45, 46 zur axialen Verbindung jeweils eines Hebels 2, 3 mit einer der Klauenplatten 43, 44 aufgenommen sind.As in the Figures 4 to 10b ) is shown, the claw coupling 4 has a housing 41 in which two spring elements 42, preferably designed as cup springs, two claw plates and connecting elements 45, 46 for the axial connection of a lever 2, 3 with one of the claw plates 43, 44 are accommodated.

Die Verbindungselemente 45, 46 stehen dabei mit Endstücken aus dem Gehäuse 41 hervor.The connecting elements 45, 46 protrude from the housing 41 with end pieces.

Die erste Klauenplatte 43 ist mit einer mit dem Klemmmechanismus 23 gekoppelten Kraftwelle 24 drehfest gekoppelt.The first claw plate 43 is non-rotatably coupled to a power shaft 24 coupled to the clamping mechanism 23.

Die zweite Klauenplatte 44, im Detail in den Figuren 10a) und 10b) dargestellt, ist mit dem zweiten Hebel 3 drehfest gekoppelt.The second jaw plate 44, in detail in FIGS Figures 10a) and 10b ) shown is coupled to the second lever 3 in a rotationally fixed manner.

Denkbar ist es auch, in dem Gehäuse 41 nur ein oder mehr als zwei solcher Federelemente 42 aufzunehmen.It is also conceivable to accommodate only one or more than two such spring elements 42 in the housing 41.

Das Gehäuse 41 der Klauenkupplung 4 ist im Detail in Figur 8 dargestellt. Wie in Figur 8 gezeigt, weist das Gehäuse 41 der Klauenkupplung 4 eine zylindrische Mantelfläche 411 auf, von deren dem ersten Hebel 2 zugewandten Rand sich vor dem Zusammenbau der Klauenkupplung Biegezungen 414 axial erstrecken. Dieser Zustand vor dem Zusammenbau der Klauenkupplung 4 ist in Figur 8 dargestellt.The housing 41 of the dog clutch 4 is shown in detail in Figure 8 shown. As in Figure 8 As shown, the housing 41 of the claw coupling 4 has a cylindrical outer surface 411, from the edge of which facing the first lever 2 bending tongues 414 extend axially before the claw coupling is assembled. This state before the assembly of the dog clutch 4 is shown in FIG Figure 8 shown.

Die Biegezungen 414 werden nach dem Einsetzen der Federelemente 42, der Klauenplatten 43, 44 und der Verbindungselemente 45, 46 radial derart nach innen umgebogen, dass die Klauenplatten 43, 44 von den Federelementen 42 unter Vorspannung aneinander gedrückt werden.After the insertion of the spring elements 42, the claw plates 43, 44 and the connecting elements 45, 46, the bending tongues 414 are bent radially inward such that the claw plates 43, 44 are pressed against one another by the spring elements 42 under pretension.

Durch eine geringere oder stärkere Umbiegung dieser Zungen 414 kann das Maß des auszuübenden Drehmoments eingestellt werden, das aufgewandt werden muss, um die Klauenplatten 43, 44 aus einer Raststellung in eine Endraststellung zu verdrehen.By bending these tongues 414 to a lesser or greater extent, the amount of torque to be exerted can be adjusted which must be applied in order to rotate the claw plates 43, 44 from a latching position into an end latching position.

Bevorzugt wird die Klauenkupplung 4 dabei so eingestellt, dass das auszuübende Drehmoment im Bereich von 60Nm bis 120Nm liegt.The claw clutch 4 is preferably set in such a way that the torque to be exerted is in the range from 60 Nm to 120 Nm.

In einer Basisfläche 412, von der sich die zylindrische Mantelfläche 411 erhebt, ist eine zentrale Ausnehmung 413 vorgesehen, durch die ein die zweite Klauenplatte 44 mit dem zweiten Hebel 3 koppelndes Koppelstück 449 durchsteckbar ist.In a base surface 412, from which the cylindrical jacket surface 411 rises, a central recess 413 is provided, through which a coupling piece 449 coupling the second claw plate 44 to the second lever 3 can be pushed.

Die beiden Klauenplatten 43, 44 sind in den Figuren 9a, 9b und 10a und 10b im Detail dargestellt.The two claw plates 43, 44 are in the Figures 9a, 9b and 10a and 10b shown in detail.

Wie in der Figur 9a und 9b gezeigt, weist die erste Klauenplatte 43 mehrere Erhebungen 432, 433 auf einer der zweiten Klauenplatte 44 zugewandten Ringfläche 431 auf. Die Erhebungen 432, 433 weisen dabei radiale Seitenkanten auf.Like in the Figures 9a and 9b As shown, the first claw plate 43 has a plurality of elevations 432, 433 on an annular surface 431 facing the second claw plate 44. The elevations 432, 433 have radial side edges.

Die Breite der Erhebungen 432, 433 in Umfangsrichtung der Ringfläche 431 sind dabei voneinander verschieden. Dadurch ergibt sich eine Codierung der Erhebungen 432, 433 derart, dass die Raststellung der Klauenplatten 43, 44 zueinander im hier gezeigten Ausführungsbeispiel nur an um 180° voneinander beabstandeten Winkelstellungen der Klauenplatten 43, 44 zueinander einnehmbar ist.The width of the elevations 432, 433 in the circumferential direction of the annular surface 431 are different from one another. This results in a coding of the elevations 432, 433 such that the latching position of the claw plates 43, 44 in relation to one another in the exemplary embodiment shown here can only be assumed at angular positions of the claw plates 43, 44 spaced 180 ° from one another.

Die zweite Klauenplatte 44 weist den Abmaßen der Erhebungen 432, 433 entsprechende Vertiefungen 442, 443 auf, so dass die Erhebungen 432, 433 der ersten Klauenplatte 43 in einer Raststellung in den Vertiefungen 442, 443 der zweiten Klauenplatte 44 einliegen.The second claw plate 44 has depressions 442, 443 corresponding to the dimensions of the elevations 432, 433, so that the elevations 432, 433 of the first claw plate 43 rest in a latching position in the recesses 442, 443 of the second claw plate 44.

Durch relative Verdrehung der Klauenplatten zueinander, die im Falle einer Überbelastung des Schwenkbeschlags 1 eintritt, werden die beiden Klauenplatten 43, 44 um das Maß der Überdeckung der Klauen entgegen der Federkraft axial distanziert und derart relativ zueinander um die Schwenkachse D verdreht, dass die Erhebungen 432, 433 auf der Ringfläche 441 neben den Vertiefungen 442, 443 der zweiten Klauenplatte 44 aufliegen.By relative rotation of the claw plates to one another, which occurs in the event of an overload of the swivel fitting 1, the two claw plates 43, 44 are axially spaced by the amount of overlap of the claws against the spring force and rotated relative to one another about the pivot axis D in such a way that the elevations 432 , 433 rest on the annular surface 441 next to the depressions 442, 443 of the second claw plate 44.

Die radialen Seitenkanten der Erhebungen 432, 433 und der Vertiefungen 442, 443 sind dabei bevorzugt angefast und/oder abgerundet ausgebildet.The radial side edges of the elevations 432, 433 and the depressions 442, 443 are preferably chamfered and / or rounded.

Um eine drehfeste Verbindung zwischen einer der Klauenplatten 43, 44 und dem Gehäuse 41 herzustellen, weist die der zweiten Klauenplatte 44 abgewandte Ringfläche 435 der ersten Klauenplatte 43 mehrere Vertiefungen 436 auf, in der die radial nach innen gebogenen Zungen 414 des Gehäuses 41 einliegen.In order to establish a rotationally fixed connection between one of the claw plates 43, 44 and the housing 41, the annular surface 435 of the first claw plate 43 facing away from the second claw plate 44 has several recesses 436 in which the radially inwardly bent tongues 414 of the housing 41 are located.

Wie des Weiteren in den Figuren 9a und 9b gezeigt, weist die erste Klauenplatte 43 eine zentrale Aufnahme 437 mit polygonalem oder verzahntem Innenrand auf, in der im montierten Zustand eine im Hebelkopf 22 des ersten Hebels 2 aufgenommene polygonale oder außenverzahnte Kraftwelle 24 aufgenommen ist.As also in the Figures 9a and 9b As shown, the first claw plate 43 has a central receptacle 437 with a polygonal or toothed inner edge, in which, in the assembled state, a polygonal or externally toothed power shaft 24 received in the lever head 22 of the first lever 2 is received.

Wie in Figuren 10a und 10b gezeigt ist, erstreckt sich bei der hier gezeigten Ausführungsvariante der zweiten Klauenplatte 44 von einer der ersten Klauenplatte 43 abgewandten Ringfläche 445 der zweiten Klauenplatte 44 eine sich axial erstreckende Kraftwelle 447 mit polygonaler oder verzahnter Mantelfläche, die im montierten Zustand in eine im Hebelkopf 32 des zweiten Hebels 3 angeformte polygonale oder innenverzahnte Aufnahme eingreift, wie es in den Figuren 3 und 4 gezeigt ist.As in Figures 10a and 10b is shown, in the embodiment variant of the second claw plate 44 shown here extends from an annular surface 445 of the second claw plate 44 facing away from the first claw plate 43, an axially extending power shaft 447 with a polygonal or toothed outer surface, which in the assembled state turns into a lever head 32 of the second Lever 3 molded polygonal or internally toothed receptacle engages, as in the Figures 3 and 4th is shown.

Zur axialen Fixierung der Klauenkupplung 4 mit den beiden Hebeln 2, 3 dienen die Verbindungselemente 45, 46. Die Verbindungselemente 45, 46 sind dabei bevorzugt als Niete ausgebildet.The connecting elements 45, 46 serve to axially fix the claw coupling 4 with the two levers 2, 3. The connecting elements 45, 46 are preferably designed as rivets.

Wie in den Figuren 4, 6 und 8 gezeigt, liegen im montierten Zustand Nietköpfe 452, 462 der Verbindungselemente 45, 46 gegenseitig abstützend aneinander.As in the Figures 4 , 6th and 8th shown, in the assembled state rivet heads 452, 462 of the connecting elements 45, 46 are mutually supportive against one another.

Die Nietköpfe 452, 462 liegen in der hier gezeigten Ausführungsvariante in einer Aussparung 444 der zweiten Klauenplatte 44 ein.In the variant embodiment shown here, the rivet heads 452, 462 are located in a recess 444 in the second claw plate 44.

Die voneinander entfernten Enden der Verbindungselemente 45, 46 am Ende der Niethälse 451, 461, die sich in einem Fall durch die erste Klauenplatte 43 und die Kraftwelle 24 und im zweiten Fall durch die zweite Klauenplatte 44 und die an dieser festgelegte oder an dieser angeformten Kraftwelle 447 erstrecken, werden vernietet.The mutually distant ends of the connecting elements 45, 46 at the end of the rivet necks 451, 461, which extend in one case through the first claw plate 43 and the power shaft 24 and in the second case through the second claw plate 44 and the force wave fixed or formed on this 447 are riveted.

Anstelle der Niete ist es auch denkbar, Schrauben oder andere Verbindungselemente einzusetzen. Beispielsweise können als Verbindungselemente auch Bolzen mit Nut und Sicherungsring verwendet werden.Instead of the rivet, it is also conceivable to use screws or other connecting elements. For example, bolts with a groove and a locking ring can also be used as connecting elements.

Die Verbindungselemente können auch jeweils einteilig mit einer der Klauenplatten 43, 44 gestaltet sein.The connecting elements can also each be designed in one piece with one of the claw plates 43, 44.

Die beiden Klauenplatten 43, 44 sind bevorzugt als Sinterbauteile ausgebildet.The two claw plates 43, 44 are preferably designed as sintered components.

Die Kraftwelle 447 der zweiten Klauenplatte 44 ist bevorzugt mit einem rundzylindrischen Halsstück 446 versehen, auf das im montierten Zustand die Federelemente 42 aufgefädelt sind.The power shaft 447 of the second claw plate 44 is preferably provided with a round cylindrical neck piece 446, onto which the spring elements 42 are threaded in the assembled state.

Anstelle des zweiten Hebels 3 des Schwenkbeschlags 1 kann der erste Hebel 2 mit der Klauenkupplung 4 auch direkt mit einem beweglichen Möbelteil gekoppelt werden.Instead of the second lever 3 of the swivel fitting 1, the first lever 2 with the claw coupling 4 can also be coupled directly to a movable furniture part.

Dies ist insbesondere bei Möbeln sinnvoll, die metallische Profile verwenden, wie z.B. bei Stahlrohrmöbeln. Eine Lasche oder ein Profil des beweglichen Möbelteils wird in diesem Fall anstelle des zweiten Hebels 3 mit der Kraftwelle 447 gekoppelt und durch das Verbindungselement 45 gesichert.This is particularly useful for furniture that uses metallic profiles, such as tubular steel furniture. In this case, instead of the second lever 3, a bracket or a profile of the movable furniture part is coupled to the power shaft 447 and secured by the connecting element 45.

BezugszeichenlisteList of reference symbols

11
SchwenkbeschlagSwivel fitting
22
erster Hebelfirst lever
2222nd
HebelkopfLever head
22a22a
HebelkopfLever head
22b22b
HebelkopfLever head
2323
Klemm-oder RastmechanismusClamping or locking mechanism
2424
KraftwellePower wave
33
zweiter Hebelsecond lever
3232
HebelkopfLever head
44th
KlauenkupplungClaw coupling
4141
Gehäusecasing
411411
MantelflächeOuter surface
412412
BasisflächeBase area
413413
Bohrungdrilling
414414
Zungetongue
4242
FederelementSpring element
4343
erste Klauenplattefirst claw plate
431431
RingflächeRing surface
432432
ErhebungElevation
433433
ErhebungElevation
434434
Bohrungdrilling
435435
RingflächeRing surface
436436
Vertiefungdeepening
437437
Aufnahmerecording
438438
ÜberstandGot over
4444
zweite Klauenplattesecond claw plate
441441
RingflächeRing surface
442442
Vertiefungdeepening
443443
Vertiefungdeepening
444444
Aufnahmeadmission
445445
RingflächeRing surface
446446
HalsstückNeck piece
447447
KraftwellePower wave
448448
Bohrungdrilling
4545
VerbindungselementConnecting element
451451
NiethalsRivet neck
452452
NietkopfRivet head
4646
VerbindungselementConnecting element
461461
NiethalsRivet neck
462462
NietkopfRivet head
DD.
Achseaxis
VV
VerstellrichtungAdjustment direction
αα
Winkelangle
100100
Möbelfurniture
101101
KorpusBody
102102
Rückenlehnebackrest
103103
Armlehnearmrest

Claims (17)

  1. Pivot fitting (1), in particular for movable furniture parts on items of furniture, having
    - a first lever (2) and a second lever (3) which are mounted such as to be pivotable relative to one another about a pivot axis (D) out of a basic position through a predetermined angle (α) in an adjustment direction (V) and a restoring direction (R),
    - a clamping or latching mechanism (23), by which the two levers (2, 3) can be fixed relative to one another in different angle positions within the predetermined angle (α) against a torque acting in the restoring direction (R) and can be pivoted in the restoring direction (R) when the clamping or latching mechanism (23) is deactivated,
    - an overload coupling, by which the first lever (2) can be pivoted relative to the second lever (3) in the restoring direction (R) when a predetermined torque is exceeded while the clamping or latching mechanism (23) is activated,
    characterized in that
    - the overload coupling is configured as a claw coupling (4) which is arranged as a structural unit not directly integrated into the clamping to latching mechanism (23) between the first lever (2) and the second lever (3).
  2. Pivot fitting according to claim 1, characterized in that the claw coupling (4) has a housing (41), at least one spring element (42), a first claw plate (43) which is coupled to a first of the levers (2, 3) in such a way as to rotate therewith, and a second claw plate (44) which is coupled to the second of the levers (2, 3) in such a way as to rotate therewith.
  3. Pivot fitting according to claim 2, characterized in that the claw coupling (4) has respective connecting elements (45, 46) for axially connecting a respective lever (2, 3) to a claw plate (43, 44), wherein the spring element (42), the claw plates (43, 44) and portions of the connecting elements (45, 46) are accommodated in the housing (41) and respective end pieces of the connecting elements (45, 46) protrude from the housing (41) and are coupled to a respective one of the levers (2, 3).
  4. Pivot fitting according to claim 3, characterized in that the claw plates (43, 44) have respective elevations (432, 433) and depressions (442, 443) on annular surfaces (431, 441) which face towards one another in the assembled state, wherein the elevations (432, 433) and depressions (442, 443) are shaped such that the elevations (432, 433) of one of the claw plates (43, 44) come to lie in the depressions (442, 443) of the other of the claw plates (43, 44) in a latching position and, by rotating said claw plates relative to one another about the pivot axis (D), the elevations (432, 433) of one of the claw plates (43, 44) bear against the annular surface (431, 441) next to the depressions (442, 443).
  5. Pivot fitting according to claim 4, characterized in that the coding of the elevations (432, 433) and depressions (442, 443) is selected such that the latching position can be assumed when the claw plates (43, 44) are in angle positions spaced apart from one another by 180°.
  6. Pivot fitting according to claim 4 to 5, characterized in that the radial side edges of the elevations (432, 433) and depressions (442, 443) are chamfered and/or rounded.
  7. Pivot fitting according to one of claims 2 to 6, characterized in that the first claw plate (43) has a central aperture (437) with a polygonal or toothed inner edge, in which a polygonal or externally toothed force-transmitting shaft (24) held in the lever head (22) of the first lever (2) is received in the assembled state.
  8. Pivot fitting according to one of claims 2 to 7, characterized in that an axially extending force-transmitting shaft (447) with a polygonal or toothed lateral surface extends from an annular surface (445) of the second claw plate (44), facing away from the first claw plate (43), and in the assembled state engages in a polygonal or internally toothed aperture formed in the lever head (32) of the second lever (3).
  9. Pivot fitting according to claim 8, characterized in that the force-transmitting shaft (447) has a circular-cylindrical neck piece (446), onto which the at least one spring element (42) is threaded in the assembled state.
  10. Pivot fitting according to claim 8 or 9, characterized in that the force-transmitting shaft (447) is formed in one piece with the second claw plate (44).
  11. Pivot fitting according to one of claims 3 to 10, characterized in that the housing (41) of the claw coupling (4) has a cylindrical lateral surface (411), from the edge of which, facing towards the first lever (2), flexible tongues (414) extend axially prior to assembly of the claw coupling, which flexible tongues, after insertion of the at least one spring element (42), of the claw plates (43, 44) and of the connecting elements (45, 46), are bent radially inwards such that the claw plates (43, 44) are pressed against one another by the at least one spring element (42) under pretension.
  12. Pivot fitting according to claim 11, characterized in that the annular surface (435) of the first claw plate (43) that faces away from the second claw plate has a plurality of depressions (436), in which the radially inwardly bent tongues (414) of the housing (41) come to lie.
  13. Pivot fitting according to one of claims 2 to 12, characterized in that at least one of the claw plates (43, 44) is configured as a sintered component.
  14. Pivot fitting according to one of claims 3 to 12, characterized in that the connecting elements (45, 46) are configured as rivets.
  15. Pivot fitting according to claim 14, characterized in that rivet heads (452, 462) of the connecting elements (45, 46) are received in a cutout (444) of the second claw plate (44) in a manner bearing against one another and supporting one another.
  16. Item of furniture (100) having a pivot fitting (1) according to one of the preceding claims.
  17. Item of furniture (100) according to claim 16, characterized in that the pivot fitting (1) fixes, in an adjustable manner, an armrest (103) or other adjustable furniture parts to a body (101) of an item of furniture (100) configured as an item of furniture for sitting or lying down.
EP18722019.9A 2017-05-11 2018-05-02 Pivot fitting and item of furniture Active EP3621486B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL18722019T PL3621486T3 (en) 2017-05-11 2018-05-02 Pivot fitting and item of furniture

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102017110248.5A DE102017110248A1 (en) 2017-05-11 2017-05-11 Swivel fitting and furniture
PCT/EP2018/061165 WO2018206360A1 (en) 2017-05-11 2018-05-02 Pivot fitting and item of furniture

Publications (2)

Publication Number Publication Date
EP3621486A1 EP3621486A1 (en) 2020-03-18
EP3621486B1 true EP3621486B1 (en) 2021-07-21

Family

ID=62111067

Family Applications (1)

Application Number Title Priority Date Filing Date
EP18722019.9A Active EP3621486B1 (en) 2017-05-11 2018-05-02 Pivot fitting and item of furniture

Country Status (6)

Country Link
EP (1) EP3621486B1 (en)
CN (1) CN110636779B (en)
DE (1) DE102017110248A1 (en)
ES (1) ES2892159T3 (en)
PL (1) PL3621486T3 (en)
WO (1) WO2018206360A1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102019113248A1 (en) 2019-05-20 2020-11-26 Hettich Franke Gmbh & Co. Kg Swivel fitting and furniture
DE102019119307A1 (en) * 2019-07-16 2021-01-21 Hettich Franke Gmbh & Co. Kg Furniture and method of assembling furniture

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1042181A (en) * 1963-03-01 1966-09-14 Carl Robert Hammerstein Hinge connection between seat and back rest, particularly for car seats
IT1013790B (en) * 1974-05-09 1977-03-30 I P E Imbottiture Prodotti Esp IMPROVEMENTS IN ARMCHAIRS AND SOFAS
US4186905A (en) * 1975-06-09 1980-02-05 Dominion Auto Accessories Limited Retractable truck mirror
US20030202840A1 (en) * 2002-04-30 2003-10-30 Mervyn M. Watkins Adjustable pivot joint
DE20319484U1 (en) * 2003-12-16 2004-03-11 Ferdinand Lusch Gmbh & Co. Kg Adjustable hinge for furniture has two hinge halves linked by interlocking ratchet discs splayed apart axially to release the setting
DE102005052781B3 (en) * 2005-11-05 2006-12-14 Faurecia Autositze Gmbh & Co. Kg Tilt adjusting fitting for motor vehicle seat`s backrest, has driving dog placed between broad sides of wedge segments for torque proof connection of tappet ring with adjusting unit that is guided to ring via dog in radially movable manner
DE202006004076U1 (en) * 2006-03-13 2006-06-01 Fischer Ekw Gmbh & Co. Kg Locking joint, especially for positioning of back or foot section on sitting and lying furniture, has locking toothed ring concentric to joint axis fixed on first joint arm and in engaged position meshes with locking toothed ring element
DE202010000368U1 (en) * 2010-03-12 2011-08-09 Hettich Franke Gmbh & Co. Kg Locking device
DE102010030630A1 (en) * 2010-06-29 2011-12-29 Robert Bosch Gmbh Control valve for a damper and associated damper
DE102010055529B4 (en) * 2010-12-22 2012-11-29 Ferdinand Lusch Gmbh & Co. Kg Locking joint for adjusting a seat and / or deck furniture
DE102011017301B4 (en) 2011-04-15 2012-12-06 Ferdinand Lusch Gmbh & Co. Kg Detent fitting for a sitting and / or lying furniture
DE202012100202U1 (en) * 2012-01-19 2013-04-23 Hettich Franke Gmbh & Co. Kg Swing fitting for a piece of furniture, in particular upholstered furniture
DE102013108665A1 (en) * 2013-08-09 2015-02-12 Hettich Franke Gmbh & Co. Kg swivel fitting
DE102015100527A1 (en) * 2015-01-14 2016-07-14 Hettich Franke Gmbh & Co. Kg Swivel fitting, furniture and motor vehicle seat
CN104842372B (en) * 2015-05-12 2017-03-22 北京理工大学 Overload protection device for joint of humanoid robot

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None *

Also Published As

Publication number Publication date
DE102017110248A1 (en) 2018-11-15
CN110636779B (en) 2024-01-26
CN110636779A (en) 2019-12-31
WO2018206360A1 (en) 2018-11-15
PL3621486T3 (en) 2022-01-03
ES2892159T3 (en) 2022-02-02
EP3621486A1 (en) 2020-03-18

Similar Documents

Publication Publication Date Title
EP1530523B1 (en) Armrest
EP2070761B1 (en) Drive component of an adjustment device of a motor vehicle
EP1451035B1 (en) Armrest
EP2640600B1 (en) Adjusting device for a vehicle seat having a self-adjusting brake
EP2958769B1 (en) Fitting for a vehicle seat, method for assembling a fitting for a vehicle seat, and vehicle seat
DE3412139A1 (en) ACTUATION MECHANISM
EP3621486B1 (en) Pivot fitting and item of furniture
EP3915829B1 (en) Vehicle seat fitting and vehicle seat
EP3610189B1 (en) Holder for flat, approximately rectangular devices such as tablet computers or smartphones
DE102010062565B4 (en) Angle adjustable handle for a hand tool
DE102011017301B4 (en) Detent fitting for a sitting and / or lying furniture
DE102010005471A1 (en) Fitting system for a vehicle seat
DE112013006427T5 (en) Foldable headrest construction
EP3621487B1 (en) Pivot fitting and piece of furniture
EP3972452B1 (en) Pivot fitting and piece of furniture
EP2748028B1 (en) Adjustment fitting with an axial locking system for blocking an infinitely variable movement
EP3621488B1 (en) Pivot fitting and piece of furniture
EP3741255A1 (en) Pivot fitting and furniture
DE202005003960U1 (en) Latch fitting for adjustable back rest or sitting part of seat or bed furniture item has protruding pressure element arranged between stop cam and external toothing at free end for engagement by locking pawl
DE102010054314B4 (en) Hardware system for a vehicle seat
WO2018167134A1 (en) Joint fitting
EP2976972B1 (en) Support element of a base of a seat or a bed
DE102012104101B4 (en) Radial adjustment with locking function
DE102006020013B4 (en) The robotic articulation
DE102011083358B4 (en) Clamping device, in particular for a roof rack of a motor vehicle

Legal Events

Date Code Title Description
STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: UNKNOWN

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE INTERNATIONAL PUBLICATION HAS BEEN MADE

PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: REQUEST FOR EXAMINATION WAS MADE

17P Request for examination filed

Effective date: 20191203

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

AX Request for extension of the european patent

Extension state: BA ME

DAV Request for validation of the european patent (deleted)
DAX Request for extension of the european patent (deleted)
STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: EXAMINATION IS IN PROGRESS

17Q First examination report despatched

Effective date: 20200915

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: EXAMINATION IS IN PROGRESS

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: GRANT OF PATENT IS INTENDED

INTG Intention to grant announced

Effective date: 20210318

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE PATENT HAS BEEN GRANTED

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

Free format text: NOT ENGLISH

REG Reference to a national code

Ref country code: CH

Ref legal event code: EP

REG Reference to a national code

Ref country code: DE

Ref legal event code: R084

Ref document number: 502018006220

Country of ref document: DE

REG Reference to a national code

Ref country code: DE

Ref legal event code: R096

Ref document number: 502018006220

Country of ref document: DE

REG Reference to a national code

Ref country code: AT

Ref legal event code: REF

Ref document number: 1411783

Country of ref document: AT

Kind code of ref document: T

Effective date: 20210815

REG Reference to a national code

Ref country code: IE

Ref legal event code: FG4D

Free format text: LANGUAGE OF EP DOCUMENT: GERMAN

REG Reference to a national code

Ref country code: LT

Ref legal event code: MG9D

REG Reference to a national code

Ref country code: NL

Ref legal event code: MP

Effective date: 20210721

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: BG

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20211021

Ref country code: LT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20210721

Ref country code: NO

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20211021

Ref country code: PT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20211122

Ref country code: NL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20210721

Ref country code: FI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20210721

Ref country code: HR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20210721

Ref country code: SE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20210721

Ref country code: RS

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20210721

REG Reference to a national code

Ref country code: ES

Ref legal event code: FG2A

Ref document number: 2892159

Country of ref document: ES

Kind code of ref document: T3

Effective date: 20220202

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LV

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20210721

Ref country code: GR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20211022

REG Reference to a national code

Ref country code: DE

Ref legal event code: R097

Ref document number: 502018006220

Country of ref document: DE

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20210721

REG Reference to a national code

Ref country code: ES

Ref legal event code: GC2A

Effective date: 20220425

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SM

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20210721

Ref country code: SK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20210721

Ref country code: RO

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20210721

Ref country code: EE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20210721

Ref country code: CZ

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20210721

Ref country code: AL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20210721

26N No opposition filed

Effective date: 20220422

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

REG Reference to a national code

Ref country code: BE

Ref legal event code: MM

Effective date: 20220531

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20220502

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MC

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20210721

Ref country code: LU

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20220502

Ref country code: LI

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20220531

Ref country code: CH

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20220531

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20220502

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20220502

Ref country code: BE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20220531

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: IT

Payment date: 20230531

Year of fee payment: 6

Ref country code: FR

Payment date: 20230517

Year of fee payment: 6

Ref country code: ES

Payment date: 20230621

Year of fee payment: 6

Ref country code: DE

Payment date: 20230519

Year of fee payment: 6

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: TR

Payment date: 20230427

Year of fee payment: 6

Ref country code: PL

Payment date: 20230424

Year of fee payment: 6

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20210721

Ref country code: CY

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20210721