EP3527762B1 - Multi-link hinge - Google Patents

Multi-link hinge Download PDF

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Publication number
EP3527762B1
EP3527762B1 EP19165676.8A EP19165676A EP3527762B1 EP 3527762 B1 EP3527762 B1 EP 3527762B1 EP 19165676 A EP19165676 A EP 19165676A EP 3527762 B1 EP3527762 B1 EP 3527762B1
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EP
European Patent Office
Prior art keywords
damper
spring
link hinge
door bearing
door
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
EP19165676.8A
Other languages
German (de)
French (fr)
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EP3527762A1 (en
Inventor
Dieter-Hermann Waltemate
Helmut Hunger
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 ONI GmbH and Co KG
Original Assignee
Hettich ONI GmbH and Co KG
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Publication date
Application filed by Hettich ONI GmbH and Co KG filed Critical Hettich ONI GmbH and Co KG
Priority to SI200832215T priority Critical patent/SI3527762T1/en
Publication of EP3527762A1 publication Critical patent/EP3527762A1/en
Application granted granted Critical
Publication of EP3527762B1 publication Critical patent/EP3527762B1/en
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Classifications

    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05F—DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION; CHECKS FOR WINGS; WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
    • E05F3/00—Closers or openers with braking devices, e.g. checks; Construction of pneumatic or liquid braking devices
    • E05F3/20—Closers or openers with braking devices, e.g. checks; Construction of pneumatic or liquid braking devices in hinges
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05D—HINGES OR SUSPENSION DEVICES FOR DOORS, WINDOWS OR WINGS
    • E05D3/00—Hinges with pins
    • E05D3/06—Hinges with pins with two or more pins
    • E05D3/16—Hinges with pins with two or more pins with seven parallel pins and four arms
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05D—HINGES OR SUSPENSION DEVICES FOR DOORS, WINDOWS OR WINGS
    • E05D3/00—Hinges with pins
    • E05D3/06—Hinges with pins with two or more pins
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05F—DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION; CHECKS FOR WINGS; WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
    • E05F1/00—Closers or openers for wings, not otherwise provided for in this subclass
    • E05F1/08—Closers or openers for wings, not otherwise provided for in this subclass spring-actuated, e.g. for horizontally sliding wings
    • E05F1/10—Closers or openers for wings, not otherwise provided for in this subclass spring-actuated, e.g. for horizontally sliding wings for swinging wings, e.g. counterbalance
    • E05F1/12—Mechanisms in the shape of hinges or pivots, operated by springs
    • E05F1/1246—Mechanisms in the shape of hinges or pivots, operated by springs with a coil spring perpendicular to the pivot axis
    • E05F1/1253—Mechanisms in the shape of hinges or pivots, operated by springs with a coil spring perpendicular to the pivot axis with a compression spring
    • E05F1/1261—Mechanisms in the shape of hinges or pivots, operated by springs with a coil spring perpendicular to the pivot axis with a compression spring for counterbalancing
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05F—DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION; CHECKS FOR WINGS; WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
    • E05F5/00—Braking devices, e.g. checks; Stops; Buffers
    • E05F5/02—Braking devices, e.g. checks; Stops; Buffers specially for preventing the slamming of swinging wings during final closing movement, e.g. jamb stops
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05F—DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION; CHECKS FOR WINGS; WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
    • E05F1/00—Closers or openers for wings, not otherwise provided for in this subclass
    • E05F1/08—Closers or openers for wings, not otherwise provided for in this subclass spring-actuated, e.g. for horizontally sliding wings
    • E05F1/10—Closers or openers for wings, not otherwise provided for in this subclass spring-actuated, e.g. for horizontally sliding wings for swinging wings, e.g. counterbalance
    • E05F1/12—Mechanisms in the shape of hinges or pivots, operated by springs
    • E05F1/1246—Mechanisms in the shape of hinges or pivots, operated by springs with a coil spring perpendicular to the pivot axis
    • E05F1/1253—Mechanisms in the shape of hinges or pivots, operated by springs with a coil spring perpendicular to the pivot axis with a compression spring
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES E05D AND E05F, RELATING TO CONSTRUCTION ELEMENTS, ELECTRIC CONTROL, POWER SUPPLY, POWER SIGNAL OR TRANSMISSION, USER INTERFACES, MOUNTING OR COUPLING, DETAILS, ACCESSORIES, AUXILIARY OPERATIONS NOT OTHERWISE PROVIDED FOR, APPLICATION THEREOF
    • E05Y2201/00—Constructional elements; Accessories therefor
    • E05Y2201/40—Motors; Magnets; Springs; Weights; Accessories therefor
    • E05Y2201/404—Function thereof
    • E05Y2201/41—Function thereof for closing
    • E05Y2201/412—Function thereof for closing for the final closing movement
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES E05D AND E05F, RELATING TO CONSTRUCTION ELEMENTS, ELECTRIC CONTROL, POWER SUPPLY, POWER SIGNAL OR TRANSMISSION, USER INTERFACES, MOUNTING OR COUPLING, DETAILS, ACCESSORIES, AUXILIARY OPERATIONS NOT OTHERWISE PROVIDED FOR, APPLICATION THEREOF
    • E05Y2600/00—Mounting or coupling arrangements for elements provided for in this subclass
    • E05Y2600/40—Mounting location; Visibility of the elements
    • E05Y2600/41—Concealed
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES E05D AND E05F, RELATING TO CONSTRUCTION ELEMENTS, ELECTRIC CONTROL, POWER SUPPLY, POWER SIGNAL OR TRANSMISSION, USER INTERFACES, MOUNTING OR COUPLING, DETAILS, ACCESSORIES, AUXILIARY OPERATIONS NOT OTHERWISE PROVIDED FOR, APPLICATION THEREOF
    • E05Y2900/00—Application of doors, windows, wings or fittings thereof
    • E05Y2900/30—Application of doors, windows, wings or fittings thereof for domestic appliances
    • E05Y2900/31—Application of doors, windows, wings or fittings thereof for domestic appliances for refrigerators

Definitions

  • the present invention relates to a multi-joint hinge according to the preamble of claim 1.
  • a multi-joint hinge in which a first fastening part is fastened to a furniture body and a second fastening part is fastened to a door.
  • the two fastening parts are connected to one another via a number of levers, with relatively thick doors, such as in refrigerators, being able to be opened via the scissor-like articulation of the levers.
  • a spring is provided to bias the multi-joint hinge to a closed position.
  • a disadvantage of this multi-joint hinge is that a door arranged on the fastening part can slam shut in an uncontrolled manner, which is further supported by the spring.
  • WO 2006/053364A1 discloses a wide angle hinge in which a linear damper with a plunger is mounted on an interface fixed to a hinge arm.
  • WO 2006/114 255 A1 discloses a hinge assembly for a refrigerator door with a piston-cylinder damping unit.
  • a linear damper which dampens a closing movement of the door bearing, so that a door attached to the multi-joint hinge cannot slam shut in an uncontrolled manner. Because the closing movement is dampened by the damper to such an extent that the closing speed is reduced.
  • the damper comprises a housing and a piston rod that can be displaced relative to the housing, the damper being mounted on a slot on one side. Because the damping effect of the damper should only be effective in a region just before the closed position, while there is freewheeling in an open position should be. This can be done in a simple way by mounting the damper on one side in a slot, with the end of the slot then initiating the damping process.
  • the damper is only effective over part of the pivoting range of the door bearing. This is because damping is required particularly shortly before the closed position, but during an opening movement a certain degree of sluggishness can be perceived as disruptive due to the damping. Therefore, a damping that is only effective in a sub-area meets the user's wishes best.
  • the door bearing can be pivotable by more than 100° relative to the fastening element, with the damper being effective in a closing range between 20° and 40°, preferably approximately 25° and 35°, during a closing process.
  • the spring can prestress the door bearing in the closed position and support the closing movement in a pivoting range that is larger than the pivoting range in which the damper is effective.
  • the force of the spring for closing the door bearing preferably starts about 5° to 20°, preferably 10° to 15°, in front of the damper.
  • the damper is preferably located within the multi-joint hinge, both in a closed position and in an open position.
  • the spring is preferably arranged within the multi-joint hinge, with protection against external influences being provided in addition to a compact design.
  • the arrangement within the multi-joint hinge means in particular an arrangement between the fastening element and the door bearing.
  • levers which have seven axes of rotation, are provided for articulating the door bearing on the fastening element.
  • a first and a second lever can be rotatably mounted on the fastening element, while a third and a fourth lever can be mounted on the door bearing Levers are rotatably mounted.
  • the levers are then coupled to one another via three axes of rotation.
  • the spring is held on a spring bearing on one side and a spring carriage is provided on the opposite side, which is mounted on a roller. Due to the geometric design of the spring carriage and the roller, the spring force generated by the spring can be adjusted relative to the door bearing depending on the position of the fastening element. In particular, the area in which the spring is effective can also be specified, with simple mechanical means being used.
  • the forces to be applied by the user to open and close the door can be influenced by different geometric embodiments or variants of the curve profile of the control disk.
  • the self-closing angle of the door can also be changed with the change in the curve geometry, since the change in the curve geometry also changes the course of the forces.
  • the door By increasing the curve in the open position, the door can also be cushioned during the opening movement.
  • a detent position of the door can be achieved by a deepening in the curve geometry, preferably in the open position. A force must be applied by the user to move the door from this position. The course of the curve affects the cam and possibly also the spring slide.
  • the spring can be moved at one end via a curved guide.
  • the cam guide can have a control cam which is coupled to the door bearing and on which a roller prestressed by the spring rests. The geometry of the cam then specifies the spring force and the start of the spring action when the door bearing closes.
  • the damper is rotatably mounted on one side and mounted on the opposite side in an elongated hole and is preferably held on a pivoting driver which when closing Shen is movable up to a stop of the slot.
  • the driver can thus allow the damper to run freely in an opening area, with the damper developing its effect after the driver has made contact with the stop.
  • the damper can also be arranged between two levers, freewheeling in an open position also being able to be achieved by a corresponding mechanism within the damper.
  • a multi-joint hinge 1 comprises a fastening element 2 that can be fixed to a body and on which a first lever 3 and a second lever 4 are rotatably arranged, which in turn are connected to a third lever 5 .
  • the second lever 4 is also connected to a fourth lever 10 , a door bearing 11 being pivotably mounted on the levers 5 and 10 .
  • the lever 3 is mounted on the fastening element 2 about an axis 6 and on the lever 5 about an axis of rotation 7 .
  • the fastening lever 2 is rotatably connected to the second lever 4 via an axle 8 , the lever 4 being connected to the third lever 5 via an axle 9 .
  • an axis 13 is provided on the second lever 4, on which the fourth lever 10 is articulated.
  • levers 3, 4, 5 and 10 which connect the door bearing 11 to the fastening element 2 via seven axes 6, 7, 8, 9, 12, 13 and 14 in a pivotable manner.
  • a pivoting movement can be realized via this lever mechanism, which is particularly advantageous for refrigerator doors or other heavier door elements.
  • the multi-joint hinge 1 is shown at an opening angle of 115°.
  • a spring 15 is in the tensioned state and is tensioned between the axle 12 and a spring carriage 16, the spring carriage 16 adjacent to a roller 17 is arranged.
  • the roller 17 for actuating the spring carriage 16 is mounted in the lever 10.
  • a damper 18 is provided, which is mounted with a housing on the lever 4 about an axis 19 .
  • the damper 18 comprises a retractable and extendable piston rod 20 which is guided at one end 21 in a slot 22 on the lever 10. In the wide open position, the end 21 can slide freely in the slot 22 and the damper 18 has no effect.
  • the end 21 of the damper 18 is still freely movable in the slot 22 and in this respect has no damping effect.
  • FIG 4A and 4B the closed position of the multi-joint hinge 1 is shown.
  • the spring 15 is only in a slightly pretensioned state, as a result of which a small torque is still generated in order to tension the door bearing 11 in the closed position.
  • the damper 18 is due to the closing movement of the door bearing 11 has been moved to a retracted position in which the piston rod 20 is accommodated in the housing of the damper 18.
  • the multi-joint hinge is essentially box-shaped, with the fastening element 2 and the door bearing 11 being provided on opposite sides of the box.
  • the damper 18 is shown only schematically as a linear damper with a piston rod that can be moved out.
  • Different dampers can be used which, for example, can be moved easily along the piston rod when extending but can be moved with difficulty when retracting, with the damping force being able to deviate by a factor of 5 to 20, for example.
  • the damper it is of course possible to arrange the damper in such a way that it is difficult to move when extending and easy to move when retracting the piston rod.
  • the damper can be designed in such a way that a damping effect only takes place from a certain position of the piston rod relative to the housing.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Closing And Opening Devices For Wings, And Checks For Wings (AREA)
  • Refrigerator Housings (AREA)
  • Hinges (AREA)
  • Vibration Dampers (AREA)

Description

Die vorliegende Erfindung betrifft ein Mehrgelenkscharnier nach dem Oberbegriff des Anspruches 1.The present invention relates to a multi-joint hinge according to the preamble of claim 1.

Aus der DE 10 2005 004 957 ist ein Mehrgelenkscharnier bekannt, bei dem ein erstes Befestigungsteil an einem Möbelkorpus und ein zweites Befestigungsteil an einer Tür befestigt ist. Die beiden Befestigungsteile sind über mehrere Hebel miteinander verbunden, wobei über die scherenartige Anlenkung der Hebel relativ dicke Türen, wie bei Kühlschränken, geöffnet werden können. Um das Mehrgelenkscharnier in eine geschlossene Position vorzuspannen, ist eine Feder vorgesehen. Bei diesem Mehrgelenkscharnier ist nachteilig, dass eine an dem Befestigungsteil angeordnete Tür unkontrolliert zuschlagen kann, was durch die Feder noch unterstützt wird.From the DE 10 2005 004 957 a multi-joint hinge is known in which a first fastening part is fastened to a furniture body and a second fastening part is fastened to a door. The two fastening parts are connected to one another via a number of levers, with relatively thick doors, such as in refrigerators, being able to be opened via the scissor-like articulation of the levers. A spring is provided to bias the multi-joint hinge to a closed position. A disadvantage of this multi-joint hinge is that a door arranged on the fastening part can slam shut in an uncontrolled manner, which is further supported by the spring.

In der WO 2006/053364A1 ist ein Weitwinkelscharnier offenbart, bei dem ein Lineardämpfer mit einem Stößel auf einem Zwischenstück montiert ist, das an einem Scharnierarm festgelegt ist.In the WO 2006/053364A1 discloses a wide angle hinge in which a linear damper with a plunger is mounted on an interface fixed to a hinge arm.

DE 20 2005 016 375 U1 offenbart einen Beschlag zum schwenkbaren Befestigen einer Frontklappe an einem Möbelschrank, die über eine Federeinrichtung in der Schließstellung gehalten ist. Die Schließbewegung wird dabei über eine fluidische Dämpfungseinrichtung mit einem Dämpfungsanschlag abgebremst. DE 20 2005 016 375 U1 discloses a fitting for pivotably attaching a front flap to a furniture cabinet, which is held in the closed position by a spring device. The closing movement is braked via a fluidic damping device with a damping stop.

WO 2006/114 255 A1 offenbart eine Scharnier-Anordnung für eine Kühlschranktür mit einer Kolben-Zylinder-Dämpfungs-Einheit. WO 2006/114 255 A1 discloses a hinge assembly for a refrigerator door with a piston-cylinder damping unit.

Es ist daher Aufgabe der vorliegenden Erfindung ein Mehrgelenkscharnier zu schaffen, das bei einfachem Aufbau ein Zuschlagen einer an dem Mehrgelenkscharnier montierten Tür vermeidet.It is therefore the object of the present invention to create a multi-joint hinge which, with a simple structure, prevents a door mounted on the multi-joint hinge from slamming shut.

Diese Aufgabe wird mit einem Mehrgelenkscharnier mit den Merkmalen des Anspruches 1 gelöst.This object is achieved with a multi-joint hinge having the features of claim 1.

Erfindungsgemäß ist ein linearer Dämpfer vorgesehen, der eine Schließbewegung des Türlagers dämpft, so dass eine an dem Mehrgelenkscharnier angebrachte Tür nicht unkontrolliert zuschlagen kann. Denn die Schließbewegung wird durch den Dämpfer soweit gedämpft, dass die Schließgeschwindigkeit reduziert wird. Der Dämpfer umfasst dabei ein Gehäuse und eine relativ zu dem Gehäuse verschiebbare Kolbenstange, wobei der Dämpfer an einer Seite an einem Langloch gelagert ist. Denn die Dämpfungswirkung des Dämpfers soll nur in einem Bereich kurz vor der Schließposition wirksam sein, während in einer Öffnungsposition ein Freilauf vorhanden sein soll. Dies kann auf einfache Weise durch die Lagerung des Dämpfers an einer Seite an einem Langloch erfolgen, wobei dann das Ende des Langloches den Dämpfungsvorgang einleitet.According to the invention, a linear damper is provided, which dampens a closing movement of the door bearing, so that a door attached to the multi-joint hinge cannot slam shut in an uncontrolled manner. Because the closing movement is dampened by the damper to such an extent that the closing speed is reduced. The damper comprises a housing and a piston rod that can be displaced relative to the housing, the damper being mounted on a slot on one side. Because the damping effect of the damper should only be effective in a region just before the closed position, while there is freewheeling in an open position should be. This can be done in a simple way by mounting the damper on one side in a slot, with the end of the slot then initiating the damping process.

Gemäß der Erfindung ist der Dämpfer nur über einen Teil des Schwenkbereiches des Türlagers wirksam. Denn insbesondere kurz vor der Schließstellung ist eine Dämpfung erforderlich, während einer Öffnungsbewegung kann jedoch eine gewisse Schwergängigkeit durch die Dämpfung als störend empfunden werden kann. Daher kommt eine Dämpfung, die nur in einem Teilbereich wirksam ist den Wünschen des Benutzers am ehesten entgegen. Das Türlager kann dabei relativ zu dem Befestigungselement um über 100° verschwenkbar sein, wobei der Dämpfer in einem Schließbereich bei einem Schließvorgang zwischen 20° bis 40°, vorzugsweise etwa 25° bis 35°wirksam ist.According to the invention, the damper is only effective over part of the pivoting range of the door bearing. This is because damping is required particularly shortly before the closed position, but during an opening movement a certain degree of sluggishness can be perceived as disruptive due to the damping. Therefore, a damping that is only effective in a sub-area meets the user's wishes best. The door bearing can be pivotable by more than 100° relative to the fastening element, with the damper being effective in a closing range between 20° and 40°, preferably approximately 25° and 35°, during a closing process.

Damit die Schließbewegung vom Verbraucher als leichtgängig empfunden wird, kann die Feder das Türlager in die Schließstellung vorspannen und die Schließbewegung in einem Schwenkbereich unterstützen, der größer ist als der Schwenkbereich, in dem der Dämpfer wirksam ist. Vorzugsweise setzt die Kraft der Feder zum Schließen des Türlagers etwa 5° bis 20°, vorzugsweise 10° bis 15° vor dem Dämpfer ein.So that the closing movement is felt by the consumer to be smooth, the spring can prestress the door bearing in the closed position and support the closing movement in a pivoting range that is larger than the pivoting range in which the damper is effective. The force of the spring for closing the door bearing preferably starts about 5° to 20°, preferably 10° to 15°, in front of the damper.

Für einen kompakten Aufbau ist der Dämpfer vorzugsweise innerhalb des Mehrgelenkscharniers angeordnet, und zwar sowohl in der Schließstellung als auch in einer geöffneten Position. Gleichermaßen ist die Feder vorzugsweise innerhalb des Mehrgelenkscharniers angeordnet, wobei neben einem kompakten Aufbau auch der Schutz vor äußerer Einwirkung gegeben ist. Die Anordnung innerhalb des Mehrgelenkscharniers bedeutet insbesondere eine Anordnung zwischen dem Befestigungselement und dem Türlager.For compact construction, the damper is preferably located within the multi-joint hinge, both in a closed position and in an open position. Likewise, the spring is preferably arranged within the multi-joint hinge, with protection against external influences being provided in addition to a compact design. The arrangement within the multi-joint hinge means in particular an arrangement between the fastening element and the door bearing.

Gemäß einer weiteren Ausgestaltung der Erfindung sind zum Anlenken des Türlagers an dem Befestigungselement vier Hebel vorgesehen, die sieben Drehachsen aufweisen. Dabei können an dem Befestigungselement ein erster und ein zweiter Hebel drehbar gelagert sein, während an dem Türlager ein dritter und ein vierter Hebel drehbar gelagert sind. Die Hebel sind dann untereinander über drei Drehachsen miteinander gekoppelt.According to a further embodiment of the invention, four levers, which have seven axes of rotation, are provided for articulating the door bearing on the fastening element. A first and a second lever can be rotatably mounted on the fastening element, while a third and a fourth lever can be mounted on the door bearing Levers are rotatably mounted. The levers are then coupled to one another via three axes of rotation.

Gemäß einer weiteren Ausgestaltung der Erfindung ist die Feder an einer Seite an einem Federlager gehalten und an der gegenüberliegenden Seite ist ein Federschlitten vorgesehen, der an einer Rolle gelagert ist. Durch die geometrische Ausgestaltung des Federschlittens und der Rolle kann die durch die Feder erzeugte Federkraft abhängig von der Position des Befestigungselementes relativ zu dem Türlager eingestellt sein. Insbesondere kann auch der Bereich vorgegeben werden, in dem die Feder wirksam ist, wobei einfache mechanische Mittel eingesetzt werden.According to a further embodiment of the invention, the spring is held on a spring bearing on one side and a spring carriage is provided on the opposite side, which is mounted on a roller. Due to the geometric design of the spring carriage and the roller, the spring force generated by the spring can be adjusted relative to the door bearing depending on the position of the fastening element. In particular, the area in which the spring is effective can also be specified, with simple mechanical means being used.

Durch verschiedene geometrische Ausführungsformen bzw. Varianten des Kurvenverlaufes der Steuerscheibe sind beispielsweise die vom Nutzer aufzuwendenden Kräfte zum Öffnen und Schließen der Tür beeinflussbar. Ebenso ist mit der Änderung der Kurvengeometrie der Selbstanzugswinkel der Tür veränderbar, da mit der Änderung der Kurvengeometrie auch eine Änderung des Kräfteverlaufs erreicht wird.For example, the forces to be applied by the user to open and close the door can be influenced by different geometric embodiments or variants of the curve profile of the control disk. The self-closing angle of the door can also be changed with the change in the curve geometry, since the change in the curve geometry also changes the course of the forces.

Durch einen Anstieg der Kurve in der Offen-Stellung kann auch ein Abfedern der Tür bei der Öffnungsbewegung erreicht werden.By increasing the curve in the open position, the door can also be cushioned during the opening movement.

Durch eine Vertiefung in der Kurvengeometrie kann eine Raststellung der Tür erreicht werden, vorzugsweise in der Öffnungsstellung. Es muss vom Nutzer eine Kraft aufgewendet werden, um die Tür aus dieser Position zu bewegen. Der Kurvenverlauf betrifft die Steuerkurve und eventuell auch den Federschlitten.A detent position of the door can be achieved by a deepening in the curve geometry, preferably in the open position. A force must be applied by the user to move the door from this position. The course of the curve affects the cam and possibly also the spring slide.

Gemäß einer weiteren Ausgestaltung der Erfindung ist die Feder an einem Ende über eine Kurvenführung bewegbar. Die Kurvenführung kann dabei eine mit dem Türlager gekoppelte Steuerkurve aufweisen, an der eine durch die Feder vorgespannte Rolle anliegt. Die Geometrie der Steuerkurve gibt dann die Federkraft und den Beginn der Federwirkung bei einer Schließbewegung des Türlagers vor.According to a further embodiment of the invention, the spring can be moved at one end via a curved guide. The cam guide can have a control cam which is coupled to the door bearing and on which a roller prestressed by the spring rests. The geometry of the cam then specifies the spring force and the start of the spring action when the door bearing closes.

Der Dämpfer ist an einer Seite drehbar gelagert und an der gegenüberliegenden Seite an einem Langloch gelagert und dabei vorzugsweise an einem schwenkbaren Mitnehmer gehalten, der beim Schlie-ßen bis zu einem Anschlag des Langlochs bewegbar ist. Der Mitnehmer kann somit in einem Offnungsbereich einen Freilauf des Dämpfers ermöglichen, wobei nach Anliegen des Mitnehmers an dem Anschlag der Dämpfer seine Wirkung entfaltet.The damper is rotatably mounted on one side and mounted on the opposite side in an elongated hole and is preferably held on a pivoting driver which when closing Shen is movable up to a stop of the slot. The driver can thus allow the damper to run freely in an opening area, with the damper developing its effect after the driver has made contact with the stop.

Für einen möglichst kompakten Aufbau kann der Dämpfer auch zwischen zwei Hebeln angeordnet sein, wobei ein Freilauf in einer Öffnungsposition auch durch eine entsprechende Mechanik innerhalb des Dämpfers erreicht werden kann.For a structure that is as compact as possible, the damper can also be arranged between two levers, freewheeling in an open position also being able to be achieved by a corresponding mechanism within the damper.

Die Erfindung wird nachfolgend anhand eines Ausführungsbeispieles mit Bezug auf die Zeichnungen näher erläutert. Es zeigen:

Figuren 1A bis 4A
mehrere Ansichten eines Ausführungsbeispieles eines Mehrgelenkscharniers in unterschiedlichen Positionen.
The invention is explained in more detail below using an exemplary embodiment with reference to the drawings. Show it:
Figures 1A to 4A
several views of an embodiment of a multi-joint hinge in different positions.

Ein Mehrgelenkscharnier 1 umfasst ein an einem Korpus festlegbares Befestigungselement 2, an dem ein erster Hebel 3 und ein zweiter Hebel 4 drehbar angeordnet sind, die wiederum mit einem dritten Hebel 5 verbunden sind. Der zweite Hebel 4 ist ferner mit einem vierten Hebel 10 verbunden, wobei an den Hebeln 5 und 10 ein Türlager 11 verschwenkbar gelagert ist. Der Hebel 3 ist dabei am Befestigungselement 2 um eine Achse 6 und am Hebel 5 um eine Drehachse 7 gelagert. Der Befestigungshebel 2 ist über eine Achse 8 mit dem zweiten Hebel 4 drehbar verbunden, wobei der Hebel 4 über eine Achse 9 mit dem dritten Hebel 5 verbunden ist. Zudem ist an dem zweiten Hebel 4 eine Achse 13 vorgesehen, an der der vierte Hebel 10 angelenkt ist. Auf diese Weise sind vier Hebel 3, 4, 5 und 10 vorgesehen, die über sieben Achsen 6, 7, 8, 9, 12, 13 und 14 das Türlager 11 an dem Befestigungselement 2 schwenkbar verbinden. Über diesen Hebelmechanismus kann trotz eines gewissen Abstandes zwischen dem Türlager 11 und dem Befestigungselement 2 eine Schwenkbewegung realisiert werden, die gerade für Kühlschranktüren oder andere schwerere Türelemente vorteilhaft ist.A multi-joint hinge 1 comprises a fastening element 2 that can be fixed to a body and on which a first lever 3 and a second lever 4 are rotatably arranged, which in turn are connected to a third lever 5 . The second lever 4 is also connected to a fourth lever 10 , a door bearing 11 being pivotably mounted on the levers 5 and 10 . The lever 3 is mounted on the fastening element 2 about an axis 6 and on the lever 5 about an axis of rotation 7 . The fastening lever 2 is rotatably connected to the second lever 4 via an axle 8 , the lever 4 being connected to the third lever 5 via an axle 9 . In addition, an axis 13 is provided on the second lever 4, on which the fourth lever 10 is articulated. In this way, four levers 3, 4, 5 and 10 are provided, which connect the door bearing 11 to the fastening element 2 via seven axes 6, 7, 8, 9, 12, 13 and 14 in a pivotable manner. Despite a certain distance between the door bearing 11 and the fastening element 2, a pivoting movement can be realized via this lever mechanism, which is particularly advantageous for refrigerator doors or other heavier door elements.

In den Figuren 1A bis 1B ist das Mehrgelenkscharnier 1 in einem Öffnungswinkel von 115° gezeigt. Eine Feder 15 befindet sich im gespannten Zustand und ist zwischen der Achse 12 und einem Federschlitten 16 gespannt, wobei der Federschlitten 16 benachbart zu einer Rolle 17 angeordnet ist. Die Rolle 17 zur Betätigung des Federschlittens 16 ist im Hebel 10 gelagert.In the Figures 1A to 1B the multi-joint hinge 1 is shown at an opening angle of 115°. A spring 15 is in the tensioned state and is tensioned between the axle 12 and a spring carriage 16, the spring carriage 16 adjacent to a roller 17 is arranged. The roller 17 for actuating the spring carriage 16 is mounted in the lever 10.

Ferner ist ein Dämpfer 18 vorgesehen, der mit einem Gehäuse an dem Hebel 4 um eine Achse 19 gelagert ist. Der Dämpfer 18 umfasst eine ein- und ausfahrbare Kolbenstange 20, die an einem Ende 21 in einem Langloch 22 an dem Hebel 10 geführt ist. In der weit geöffneten Position kann das Ende 21 frei in dem Langloch 22 gleiten und der Dämpfer 18 entfaltet keine Wirkung.Furthermore, a damper 18 is provided, which is mounted with a housing on the lever 4 about an axis 19 . The damper 18 comprises a retractable and extendable piston rod 20 which is guided at one end 21 in a slot 22 on the lever 10. In the wide open position, the end 21 can slide freely in the slot 22 and the damper 18 has no effect.

Wird das Mehrgelenkscharnier in die in Figur 2A und 2B gezeigte Position mit einem Öffnungswinkel von etwa 69° bewegt, dann befindet sich die Feder 15 im gespannten Zustand. In dieser Stellung ist die Rolle 17 in einer Aufnahme an dem Federschlitten 16 eingefahren und bei einer weiteren Schließbewegung wird nun die Feder 15 nach und nach entspannt, wodurch die Schließbewegung des Türlagers 11 unterstützt wird.If the multi-joint hinge is inserted into the in Figure 2A and 2B moves shown position with an opening angle of about 69 °, then the spring 15 is in the tensioned state. In this position, the roller 17 is retracted into a receptacle on the spring carriage 16 and, with a further closing movement, the spring 15 is gradually relaxed, as a result of which the closing movement of the door bearing 11 is assisted.

Der Dämpfer 18 ist mit dem Ende 21 nach wie vor frei beweglich in dem Langloch 22 gehalten und besitzt insofern keine Dämpfungswirkung.The end 21 of the damper 18 is still freely movable in the slot 22 and in this respect has no damping effect.

Bei einem weiteren Schließen des Türlagers 11 wird die in den Figuren 3A und 3B gezeigte Position mit einem Öffnungswinkel von etwa 26° erreicht. Die Feder 15 wird über den Federschlitten 16 und die Rolle 17 während der Schließbewegung weiter entspannt, wodurch ein Drehmoment zwischen Türlager 11 und Befestigungselement 2 entsteht, der ein selbsttätiges Schließen bewirkt. Der Dämpfer 18 ist über das Ende 21 am Ende des Langloches 22 angekommen, so dass ab dieser Winkelstellung die Wirkung des Dämpfers 18 einsetzt. Der Dämpfer 18 ist dabei als Lineardämpfer ausgebildet, der beim Einfahren eine wesentlich höhere Dämpfungskraft erzeugt als beim Ausfahren, wobei die Dämpfungswirkung um den Faktor 5 bis 15 zwischen Einfahren und Ausfahren abweichen kann.Upon further closing of the door bearing 11 in the Figures 3A and 3B shown position with an opening angle of about 26°. The spring 15 is further relieved by the spring carriage 16 and the roller 17 during the closing movement, whereby a torque arises between the door bearing 11 and the fastening element 2, which causes automatic closing. The damper 18 has reached the end of the elongated hole 22 via the end 21, so that the effect of the damper 18 begins from this angular position. The damper 18 is designed as a linear damper which generates a significantly higher damping force when retracting than when extending, with the damping effect being able to deviate by a factor of 5 to 15 between retracting and extending.

In Figur 4A und 4B ist die Schließposition des Mehrgelenkscharniers 1 gezeigt. Die Feder 15 befindet sich nur noch in einem leicht vorgespannten Zustand, wodurch nach wie vor ein geringes Drehmoment erzeugt wird, um das Türlager 11 in die geschlossene Position zu spannen. Der Dämpfer 18 ist durch die Schließbewegung des Türlagers 11 in eine eingefahrene Position bewegt worden, in der die Kolbenstange 20 in dem Gehäuse des Dämpfers 18 aufgenommen ist. In der Schließposition ist das Mehrgelenkscharnier im Wesentlichen kastenförmig ausgebildet, wobei das Befestigungselement 2 und das Türlager 11 an gegenüberliegenden Seiten des Kastens vorgesehen sind.In Figure 4A and 4B the closed position of the multi-joint hinge 1 is shown. The spring 15 is only in a slightly pretensioned state, as a result of which a small torque is still generated in order to tension the door bearing 11 in the closed position. The damper 18 is due to the closing movement of the door bearing 11 has been moved to a retracted position in which the piston rod 20 is accommodated in the housing of the damper 18. In the closed position, the multi-joint hinge is essentially box-shaped, with the fastening element 2 and the door bearing 11 being provided on opposite sides of the box.

Bei dem vorangegangenen Ausführungsbeispiel ist der Dämpfer 18 nur schematisch als Lineardämpfer mit einer herausfahrbaren Kolbenstange gezeigt. Es können unterschiedliche Dämpfer eingesetzt werden, die beispielsweise beim Ausfahren entlang der Kolbenstange leichtgängig, aber beim Einfahren schwergängig bewegt werden können, wobei die Dämpfungskraft beispielsweise um den Faktor 5 bis 20 abweichen kann. Alternativ ist es natürlich möglich, den Dämpfer so anzuordnen, dass er beim Herausfahren schwergängig ist und beim Einfahren der Kolbenstange leichtgängig. Ferner kann der Dämpfer so ausgebildet sein, dass erst ab einer bestimmten Position der Kolbenstange relativ zu dem Gehäuse eine Dämpfungswirkung erfolgt.In the preceding exemplary embodiment, the damper 18 is shown only schematically as a linear damper with a piston rod that can be moved out. Different dampers can be used which, for example, can be moved easily along the piston rod when extending but can be moved with difficulty when retracting, with the damping force being able to deviate by a factor of 5 to 20, for example. Alternatively, it is of course possible to arrange the damper in such a way that it is difficult to move when extending and easy to move when retracting the piston rod. Furthermore, the damper can be designed in such a way that a damping effect only takes place from a certain position of the piston rod relative to the housing.

Claims (8)

  1. A multi-link hinge (1), in particular for refrigerator doors, with a fastening element (2) which can be secured to a furniture body and is connected to a pivotable door bearing (11) via a plurality of levers (3, 4, 5, 10) connected to one another in a scissor-like manner, the door bearing (11) being pre-tensioned into a closed position via a spring (15), wherein a linear damper (18) is provided that dampens a closing movement of the door bearing (11), wherein the damper (18) is effective only over a portion of the pivot range of the door bearing (11) and the damper (18) comprises a housing and a piston rod (20) being displaceable relative to the housing, characterized in that the damper (18) is held pivotably on one side and is held at an oblong hole (22) on the other side (21).
  2. The multi-link hinge as claimed in claim 1, characterized in that the door bearing (11) is pivotable relative to the fastening element (2) through more than 100° and the damper (18) is effective in a closing range between 20° and 40°, especially 25° to 35°.
  3. The multi-link hinge as claimed in claim 1 or 2, characterized in that the spring (15) pre-tensions the door bearing (11) into the closing position and supports the closing movement of said door bearing in a pivot range which is larger than the pivot range in which the damper (18) is effective.
  4. The multi-link hinge as claimed in one of claims 1 to 3, characterized in that the damper (18) is arranged within the multi-link hinge (1).
  5. The multi-link hinge as claimed in one of claims 1 to 4, characterized in that the spring (15) is arranged within the multi-link hinge (1).
  6. The multi-link hinge as claimed in one of claims 1 to 5, characterized in that characterized in that four levers (3, 4, 5, 10), which have seven rotational shafts (6, 7, 8, 9, 12, 13, 14), are provided for articulating the door bearing (11) to the fastening element (2).
  7. The multi-link hinge as claimed in one of claims 1 to 6, characterized in that a first and a second lever (3, 4) are rotatably mounted on the fastening element (2) and a third and a fourth lever (5, 10) are rotatably mounted on the door bearing (11).
  8. The multi-link hinge as claimed in one of claims 1 to 7, characterized in that the spring (15) is held in a spring bearing (19) on one side, whereby a spring carriage (16) being held on a cylinder (17) is provided on the opposite side.
EP19165676.8A 2007-03-29 2008-03-14 Multi-link hinge Active EP3527762B1 (en)

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DE200720004621 DE202007004621U1 (en) 2007-03-29 2007-03-29 Multilink hinge
EP08717834.9A EP2129852B1 (en) 2007-03-29 2008-03-14 Multi-link hinge
PCT/EP2008/053093 WO2008119647A1 (en) 2007-03-29 2008-03-14 Multi-link hinge

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EP3527762B1 true EP3527762B1 (en) 2023-08-09

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US (1) US8225459B2 (en)
EP (2) EP2129852B1 (en)
JP (1) JP5572861B2 (en)
KR (1) KR101497295B1 (en)
CN (1) CN101663451B (en)
DE (1) DE202007004621U1 (en)
ES (2) ES2742516T3 (en)
PL (2) PL3527762T3 (en)
RU (1) RU2444598C2 (en)
SI (2) SI2129852T1 (en)
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AT502486B1 (en) * 2005-09-01 2007-04-15 Blum Gmbh Julius ARRANGEMENT WITH A HINGE, PARTICULAR FURNITURE HARNESS
DE202005016375U1 (en) 2005-10-13 2005-12-22 Hetal-Werke Franz Hettich Gmbh & Co. Kg Fitting for swivellable fastening of front flap to furniture cabinet, has fluidic damping device and damping stopper, where stopper runs against damping device while closing flap and is assigned to damping device
DE102006007702B4 (en) * 2006-02-13 2009-04-23 Hetal-Werke Franz Hettich Gmbh & Co. Kg Fitting device for a furniture flap
DE202006003196U1 (en) 2006-03-01 2007-07-12 Hettich-Oni Gmbh & Co. Kg hinge
DE202006013358U1 (en) 2006-08-31 2008-01-03 Hettich-Oni Gmbh & Co. Kg hinge

Also Published As

Publication number Publication date
EP3527762A1 (en) 2019-08-21
EP2129852B1 (en) 2019-05-22
SI3527762T1 (en) 2023-12-29
EP2129852A1 (en) 2009-12-09
KR20100016056A (en) 2010-02-12
RU2444598C2 (en) 2012-03-10
KR101497295B1 (en) 2015-03-02
SI2129852T1 (en) 2019-09-30
CN101663451B (en) 2014-07-02
JP5572861B2 (en) 2014-08-20
PL2129852T3 (en) 2020-01-31
US8225459B2 (en) 2012-07-24
DE202007004621U1 (en) 2008-08-07
US20100101052A1 (en) 2010-04-29
PL3527762T3 (en) 2024-02-05
CN101663451A (en) 2010-03-03
ES2742516T3 (en) 2020-02-14
WO2008119647A1 (en) 2008-10-09
RU2009139190A (en) 2011-05-10
ES2963913T3 (en) 2024-04-03
JP2010522862A (en) 2010-07-08

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