EP2425079B1 - Damper for furniture - Google Patents

Damper for furniture Download PDF

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Publication number
EP2425079B1
EP2425079B1 EP10714626A EP10714626A EP2425079B1 EP 2425079 B1 EP2425079 B1 EP 2425079B1 EP 10714626 A EP10714626 A EP 10714626A EP 10714626 A EP10714626 A EP 10714626A EP 2425079 B1 EP2425079 B1 EP 2425079B1
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EP
European Patent Office
Prior art keywords
piston rod
damper
piston
housing
holder
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.)
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Application number
EP10714626A
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German (de)
French (fr)
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EP2425079A1 (en
Inventor
Konrad Weber
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.)
Druck und Spritzgusswerk Hettich GmbH and Co KG
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Druck und Spritzgusswerk Hettich GmbH and Co KG
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Priority to PL10714626T priority Critical patent/PL2425079T3/en
Publication of EP2425079A1 publication Critical patent/EP2425079A1/en
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Publication of EP2425079B1 publication Critical patent/EP2425079B1/en
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    • 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
    • E05F5/00—Braking devices, e.g. checks; Stops; Buffers
    • E05F5/06—Buffers or stops limiting opening of swinging wings, e.g. floor or wall stops
    • E05F5/10—Buffers or stops limiting opening of swinging wings, e.g. floor or wall stops with piston brakes
    • 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
    • E05Y2900/20—Application of doors, windows, wings or fittings thereof for furniture, e.g. cabinets

Definitions

  • the present invention relates to a damper for furniture, in particular hinges, with a housing in which a connected to a piston rod piston is slidably received, wherein a fluid flows during a movement of the piston within the housing through a flow channel on or in the piston, and at the piston rod is provided on the end portion projecting on the housing a connecting element with a receptacle for coupling to a drive part.
  • the WO 2007/099100 A2 discloses a damper for furniture, in which a piston with a piston rod is slidably disposed in a housing. During a movement of the piston there is an attenuation via the throttling action of a flow channel, wherein the damping forces during insertion and withdrawal of the piston rod are different. It has proven to be advantageous to perform such damper as a pressure damper, ie the actuation force is higher when inserting the piston rod.
  • a connecting element is mounted, which is designed as a latching element and comprises an outwardly open eyelet. As a result, a bolt can be latched to the connecting element.
  • this type of coupling of a damper it is disadvantageous that the coupling between the connecting element and the piston rod is not sufficiently resilient. Especially when inserting the piston rod, the plastic connecting element can be damaged by high pressure loads, so that the damper is destroyed.
  • an end face of the piston rod is arranged on the receptacle of the connecting element such that a component arranged in the receptacle, for example a bolt of a movable hinge part, can rest directly and directly on the end face of the piston rod.
  • a component arranged in the receptacle for example a bolt of a movable hinge part
  • the connecting element does not transmit the pressure load. This prevents the material of the usually softer connecting element is damaged at high loads, which can then provide deformations or cracks that jeopardize the maintenance of the connecting element to the piston rod.
  • a recess is formed, on which a part of the end face of the piston rod is arranged and the direct mechanical contact of a front side of the piston rod with a mounted in the receiving drive part allows, so that when pressure is a direct power flow in the axial direction of the in the Recording stored drive part can be done on the piston rod.
  • the recess may preferably be slit-shaped and extend over the entire length of the end face. This makes it possible to specify the bearing surface on the front side, in particular if the receptacle is designed as a substantially cylindrical eyelet into which a bolt-shaped component is inserted. Then, the contact surface for this bolt can be formed on the slot-shaped receptacle.
  • the piston rod is preferably formed of metal.
  • the connecting element can be attached to the piston rod for easy mounting. Since the power transmission takes place directly between the component inserted into the receptacle and the piston rod, the connecting element can be made of plastic and latched to the piston rod, because the high pressure loads must not absorb the connecting element. The locking therefore serves only for transmitting power when pulling out the piston rod from the housing, which requires much less force.
  • the damper is preferably designed as a pressure damper, the higher damping forces during insertion of the piston rod into the housing than when pulling out generated. This ensures that a closing movement, for example in the case of a furniture door, is damped, while an opposite opening movement can be carried out largely unhindered. In this respect, the pressure peaks or high actuating forces occur only in the movement of the piston rod in the insertion direction.
  • the high forces must also be transmitted from the piston rod to the piston via a piston rod part.
  • the piston is fixed in a further embodiment on the piston rod via a metallic slide.
  • high pressure forces can be transmitted from the piston rod to the piston.
  • the slider can be latched or clamped on the piston and / or the piston rod.
  • a damper 1 in particular for furniture, comprises a substantially cylindrical housing 2, from which a piston rod 3 protrudes.
  • a connecting element 4 is formed at the end with a perpendicular to the axial direction through opening 5, on which a bolt, for example a hinge, can be inserted.
  • a bolt for example a hinge
  • a likewise perpendicular to the longitudinal direction extending passage opening 6 is formed for connection to a further bolt.
  • an interior space 7 is arranged, on which an axially displaceable piston 8 is provided.
  • the piston 8 has an annular receptacle 9 for a seal 10 which guides the piston 8 against an inner wall of the housing 2.
  • one or more grooves 21 extending in the axial direction can be provided on the inner wall of the housing 2, by means of which a bypass for the passage of a fluid is formed.
  • a groove-shaped channel 20 is recessed on one end face, which is covered by a valve disc (not shown). By the valve disc ensures that the channel 20 is closed during insertion of the piston rod 3 and thus a throttle gap is formed.
  • the valve disc is lifted off the front side of the piston 8 due to the negative pressure, so that a larger flow channel is formed to the through holes 11.
  • the damper 1 comprises on the open side of the housing 2 a cover 28 and an adjacently arranged compensating element 25, by means of which a volume compensation takes place during a movement of the piston 8 to compensate for the displacement of the piston rod fluid volume.
  • the piston rod 3 has at opposite end portions in each case an annular groove 12 and 15, respectively.
  • the piston 8 is fixed via a slide 13.
  • the slider 13 is preferably made of metal and is U-shaped, so that a receptacle 14 is provided for pushing the slider 13 into the groove 12 on the piston rod 3.
  • the piston 8 has a gap-shaped receptacle 22 for the slider 13, which is accessible for mounting the slider 13 on the piston circumference. In a mounted slide 13 in the piston 8 3 axial forces are transmitted to the piston 8 via the piston rod.
  • the damper 1 is designed as a pressure damper, so that in particular when inserting the piston rod 3 in the housing 2 high loads occur when the channel 20 is covered by a valve disc.
  • a connecting element 4 is provided made of plastic, that is latched to the annular groove 15.
  • the Connecting element 4 has a cylindrical receptacle 5, in which a bolt of a lever of a hinge can be inserted.
  • the receptacle 5 is designed so that a part of an end face 17 of the piston rod 3 is visible.
  • a slot 18 is formed on the receptacle 5, which extends over the entire length of the end face 17.
  • a part of the end face 17 is concealed by the connecting element 4, but the elongate slot 18 leaves a central region of the end face 17 free, so that this area can serve as a contact surface for a bolt, which can abut directly on the bolt through the slot.
  • the connecting element 4 comprises a cylindrical receptacle 5 for a bolt.
  • the shape of the receptacle 5 may also be deviating from the cylindrical shape, in particular, the end face 17 of the piston rod 3 may be completely accessible, so that a corresponding component can be applied there for the transmission of compressive forces.

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  • Fluid-Damping Devices (AREA)

Description

Die vorliegende Erfindung betrifft einen Dämpfer für Möbel, insbesondere Scharniere, mit einem Gehäuse, in dem ein mit einer Kolbenstange verbundener Kolben verschiebbar aufgenommen ist, wobei ein Fluid bei einer Bewegung des Kolbens innerhalb des Gehäuses durch einen Strömungskanal am oder im Kolben strömt, und an der Kolbenstange auf dem an dem Gehäuse hervorstehenden Endabschnitt ein Verbindungselement mit einer Aufnahme zur Kopplung mit einem Antriebsteil vorgesehen ist.The present invention relates to a damper for furniture, in particular hinges, with a housing in which a connected to a piston rod piston is slidably received, wherein a fluid flows during a movement of the piston within the housing through a flow channel on or in the piston, and at the piston rod is provided on the end portion projecting on the housing a connecting element with a receptacle for coupling to a drive part.

Die WO 2007/099100 A2 offenbart einen Dämpfer für Möbel, bei dem in einem Gehäuse ein Kolben mit einer Kolbenstange verschiebbar angeordnet ist. Bei einer Bewegung des Kolbens erfolgt eine Dämpfung über die Drosselwirkung eines Strömungskanals, wobei die Dämpfungskräfte beim Einschieben und Herausziehen der Kolbenstange unterschiedlich groß sind. Als vorteilhaft hat sich erwiesen, solche Dämpfer als Druckdämpfer auszuführen, d.h. die Betätigungskraft ist beim Einschieben der Kolbenstange höher. An dem aus dem Gehäuse hervorstehenden Endabschnitt der Kolbenstange ist ein Verbindungselement montiert, das als Rastelement ausgebildet ist und eine nach außen offene Öse umfasst. Dadurch kann ein Bolzen an dem Verbindungselement verrastet werden. Bei dieser Art der Kopplung eines Dämpfers ist es nachteilig, dass die Kopplung zwischen dem Verbindungselement und der Kolbenstange nicht ausreichend belastbar ist. Besonders beim Einschieben der Kolbenstange kann das Kunststoffverbindungselement durch hohe Druckbelastungen beschädigt werden, so dass der Dämpfer zerstört wird.The WO 2007/099100 A2 discloses a damper for furniture, in which a piston with a piston rod is slidably disposed in a housing. During a movement of the piston there is an attenuation via the throttling action of a flow channel, wherein the damping forces during insertion and withdrawal of the piston rod are different. It has proven to be advantageous to perform such damper as a pressure damper, ie the actuation force is higher when inserting the piston rod. At the protruding from the housing end portion of the piston rod, a connecting element is mounted, which is designed as a latching element and comprises an outwardly open eyelet. As a result, a bolt can be latched to the connecting element. In this type of coupling of a damper, it is disadvantageous that the coupling between the connecting element and the piston rod is not sufficiently resilient. Especially when inserting the piston rod, the plastic connecting element can be damaged by high pressure loads, so that the damper is destroyed.

Es ist daher Aufgabe der vorliegenden Erfindung, einen Dämpfer für Möbel zu schaffen, der auch hohen Druckbelastungen standhalten kann.It is therefore an object of the present invention to provide a damper for furniture that can withstand high pressure loads.

Diese Aufgabe wird mit einem Dämpfer mit den Merkmalen des Anspruches 1 gelöst.This object is achieved with a damper with the features of claim 1.

Erfindungsgemäß ist an der Aufnahme des Verbindungselementes eine Stirnseite der Kolbenstange so angeordnet, dass ein in der Aufnahme angeordnetes Bauteil, beispielsweise ein Bolzen eines bewegbaren Scharnierteils, direkt und unmittelbar an der Stirnseite der Kolbenstange anliegen kann. Gerade bei Druckbelastungen ist nun eine direkte Kraftabtragung zwischen dem in der Aufnahme angeordneten Bauteil und der Kolbenstange möglich. Während das Verbindungselement die Druckbelastung nicht zu übertragen hat. Dies verhindert, dass das Material des meist weicheren Verbindungselementes bei hohen Belastungen beschädigt wird, was dann für Verformungen oder Risse sorgen kann, die den Halt des Verbindungselementes an der Kolbenstange gefährden.According to the invention, an end face of the piston rod is arranged on the receptacle of the connecting element such that a component arranged in the receptacle, for example a bolt of a movable hinge part, can rest directly and directly on the end face of the piston rod. Especially with pressure loads now a direct force transfer between the arranged in the receiving member and the piston rod is possible. While the connecting element does not transmit the pressure load. This prevents the material of the usually softer connecting element is damaged at high loads, which can then provide deformations or cracks that jeopardize the maintenance of the connecting element to the piston rod.

An dem Verbindungsteil ist eine Aussparung ausgebildet, an der ein Teil der Stirnseite der Kolbenstange angeordnet ist und die direkten mechanischen Kontakt einer Stirnseite der Kolbenstange mit einem in der Aufnahme gelagerten Antriebsteil ermöglicht, so dass bei Druckbeaufschlagung ein direkter Kraftfluss in axialer Richtung von dem in der Aufnahme gelagerten Antriebsteil auf die Kolbenstange erfolgen kann. Die Aussparung kann dabei vorzugsweise schlitzförmig ausgebildet sein und sich über die gesamte Länge der Stirnseite erstrecken. Dadurch ist es möglich, die Auflagefläche an der Stirnseite vorzugeben, insbesondere wenn die Aufnahme als im Wesentlichen zylindrische Öse ausgebildet ist, in die ein bolzenförmiges Bauteil eingesteckt wird. Dann kann an der schlitzförmigen Aufnahme die Anlagefläche für diesen Bolzen ausgebildet sein.At the connecting part, a recess is formed, on which a part of the end face of the piston rod is arranged and the direct mechanical contact of a front side of the piston rod with a mounted in the receiving drive part allows, so that when pressure is a direct power flow in the axial direction of the in the Recording stored drive part can be done on the piston rod. The recess may preferably be slit-shaped and extend over the entire length of the end face. This makes it possible to specify the bearing surface on the front side, in particular if the receptacle is designed as a substantially cylindrical eyelet into which a bolt-shaped component is inserted. Then, the contact surface for this bolt can be formed on the slot-shaped receptacle.

Für eine hohe Kraftübertragung ist die Kolbenstange vorzugsweise aus Metall ausgebildet. Das Verbindungselement kann dabei für eine einfache Montage auf die Kolbenstange aufgesteckt sein. Da die Kraftübertragung direkt zwischen dem in die Aufnahme eingesteckten Bauteil und der Kolbenstange erfolgt, kann das Verbindungselement aus Kunststoff hergestellt sein und an der Kolbenstange verrastet sein, denn die hohen Druckbelastungen muss das Verbindungselement nicht aufnehmen. Die Verrastung dient demzufolge nur zur Kraftübertragung beim Herausziehen der Kolbenstange aus dem Gehäuse, was viel geringere Kraft erfordert.For a high power transmission, the piston rod is preferably formed of metal. The connecting element can be attached to the piston rod for easy mounting. Since the power transmission takes place directly between the component inserted into the receptacle and the piston rod, the connecting element can be made of plastic and latched to the piston rod, because the high pressure loads must not absorb the connecting element. The locking therefore serves only for transmitting power when pulling out the piston rod from the housing, which requires much less force.

Der Dämpfer ist vorzugsweise als Druckdämpfer ausgebildet, der beim Einschieben der Kolbenstange in das Gehäuse höhere Dämpfungskräfte als beim Herausziehen erzeugt. Dies gewährleistet, dass eine Schließbewegung, beispielsweise bei einer Möbeltür, gedämpft wird, während eine gegenläufige Öffnungsbewegung weitgehend ungehindert durchgeführt werden kann. Insofern treten die Druckspitzen bzw. hohe Betätigungskräfte lediglich bei der Bewegung der Kolbenstange in Einschieberichtung auf.The damper is preferably designed as a pressure damper, the higher damping forces during insertion of the piston rod into the housing than when pulling out generated. This ensures that a closing movement, for example in the case of a furniture door, is damped, while an opposite opening movement can be carried out largely unhindered. In this respect, the pressure peaks or high actuating forces occur only in the movement of the piston rod in the insertion direction.

Am im Kolben angreifenden Enden der Kolbenstange müssen die hohen Kräfte ebenfalls von der Kolbenstange über ein Kolbenstangenteil auf den Kolben übertragen werden. Dazu ist in einer weiteren Ausgestaltung an der Kolbenstange der Kolben über einen metallischen Schieber festgelegt. Dadurch können hohe Druckkräfte von der Kolbenstange auf den Kolben übertragen werden. Der Schieber kann dabei an dem Kolben und/oder der Kolbenstange verrastet oder geklemmt werden.At the ends of the piston rod engaging in the piston, the high forces must also be transmitted from the piston rod to the piston via a piston rod part. For this purpose, the piston is fixed in a further embodiment on the piston rod via a metallic slide. As a result, high pressure forces can be transmitted from the piston rod to the piston. The slider can be latched or clamped on the piston and / or the piston rod.

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

Figur 1
eine perspektivische Ansicht eines erfindungsgemäßen Dämpfers;
Figuren 2 und 3
zwei Ansichten des Dämpfers der Figur 1 ohne Gehäuse;
Figuren 4 bis 6
mehrere Detailansichten der Kolbenstange mit dem Verbindungselement des Dämpfers der Figur 1.
The invention will be explained in more detail using an exemplary embodiment with reference to the accompanying drawings. Show it:
FIG. 1
a perspective view of a damper according to the invention;
FIGS. 2 and 3
two views of the damper the FIG. 1 without housing;
FIGS. 4 to 6
several detailed views of the piston rod with the connecting element of the damper of FIG. 1 ,

Ein Dämpfer 1, insbesondere für Möbel, umfasst ein im Wesentlichen zylinderförmiges Gehäuse 2, aus dem eine Kolbenstange 3 herausragt. An der Kolbenstange 3 ist endseitig ein Verbindungselement 4 mit einer senkrecht zur Axialrichtung angeordneten Durchgangsöffnung 5 ausgebildet, an der ein Bolzen, beispielsweise eines Scharniers, einfügbar ist. An der gegenüberliegenden Seite ist an dem Gehäuse 2 eine ebenfalls senkrecht zur Längsrichtung erstreckende Durchgangöffnung 6 zur Verbindung mit einem weiteren Bolzen ausgebildet.A damper 1, in particular for furniture, comprises a substantially cylindrical housing 2, from which a piston rod 3 protrudes. On the piston rod 3, a connecting element 4 is formed at the end with a perpendicular to the axial direction through opening 5, on which a bolt, for example a hinge, can be inserted. On the opposite side of the housing 2, a likewise perpendicular to the longitudinal direction extending passage opening 6 is formed for connection to a further bolt.

In dem Gehäuse 2 ist ein Innenraum 7 angeordnet, an dem ein in Axialrichtung verschiebbarer Kolben 8 vorgesehen ist. Der Kolben 8 weist eine ringförmige Aufnahme 9 für einen Dichtung 10 auf, der den Kolben 8 an einer Innenwand des Gehäuses 2 entlangführt. An der Innenwand des Gehäuses 2 können dabei ein oder mehrere in axiale Richtung erstreckende Nuten 21 vorgesehen sein, mittels denen ein Bypass für die Durchleitung eines Fluids gebildet ist. An dem Kolben 8 ist an einer Stirnseite ein nutförmiger Kanal 20 ausgespart, der von einer Ventilscheibe (nicht gezeigt) überdeckt ist. Durch die Ventilscheibe wird gewährleistet, dass der Kanal 20 beim Einschieben der Kolbenstange 3 verschlossen ist und somit ein Drosselspalt gebildet ist. Beim Herausziehen der Kolbenstange 3 wird aufgrund des Unterdruckes die Ventilscheibe von der Stirnseite des Kolbens 8 abgehoben, so dass ein größerer Strömungskanal zu den Durchgangsöffnungen 11 gebildet ist.In the housing 2, an interior space 7 is arranged, on which an axially displaceable piston 8 is provided. The piston 8 has an annular receptacle 9 for a seal 10 which guides the piston 8 against an inner wall of the housing 2. In this case, one or more grooves 21 extending in the axial direction can be provided on the inner wall of the housing 2, by means of which a bypass for the passage of a fluid is formed. On the piston 8, a groove-shaped channel 20 is recessed on one end face, which is covered by a valve disc (not shown). By the valve disc ensures that the channel 20 is closed during insertion of the piston rod 3 and thus a throttle gap is formed. When pulling out the piston rod 3, the valve disc is lifted off the front side of the piston 8 due to the negative pressure, so that a larger flow channel is formed to the through holes 11.

Ferner umfasst der Dämpfer 1 an der offenen Seite des Gehäuses 2 einen Deckel 28 und ein benachbart angeordnetes Ausgleichselement 25, mittels dem ein Volumenausgleich bei einer Bewegung des Kolbens 8 zum Ausgleich des von der Kolbenstange verdrängten Fluidvolumens erfolgt.Further, the damper 1 comprises on the open side of the housing 2 a cover 28 and an adjacently arranged compensating element 25, by means of which a volume compensation takes place during a movement of the piston 8 to compensate for the displacement of the piston rod fluid volume.

In den Figuren 2 bis 5 ist die Kolbenstange 3 im Detail dargestellt. Die Kolbenstange 3 weist an gegenüberliegenden Endabschnitten jeweils eine ringförmige Nut 12 bzw. 15 auf. An der ringförmigen Nut 12 ist der Kolben 8 über einen Schieber 13 festgelegt. Der Schieber 13 besteht vorzugsweise aus Metall und ist U-förmig ausgebildet, so dass eine Aufnahme 14 zum Aufschieben des Schiebers 13 in die Nut 12 an der Kolbenstange 3 vorgesehen ist. Der Kolben 8 weist eine spaltförmige Aufnahme 22 für den Schieber 13 auf, die für eine Montage des Schiebers 13 am Kolbenumfang zugänglich ist. Bei einem montierten Schieber 13 im Kolben 8 werden über die Kolbenstange 3 Axialkräfte auf den Kolben 8 übertragen. Dabei sind es insbesondere die breit gestalteten Oberflächen des Schiebers 13, die die Verbindung zwischen Kolbenstange 3 und Kolben 8 gegen die Axialkräfte abstützen, um so ein Durchschlagen der Kolbenstange 3 durch den Kolben 8 abzuwenden. Der Dämpfer 1 ist dabei als Druckdämpfer ausgebildet, so dass insbesondere beim Einschieben der Kolbenstange 3 in das Gehäuse 2 hohe Belastungen auftreten, wenn der Kanal 20 durch eine Ventilscheibe abgedeckt ist.In the FIGS. 2 to 5 the piston rod 3 is shown in detail. The piston rod 3 has at opposite end portions in each case an annular groove 12 and 15, respectively. At the annular groove 12, the piston 8 is fixed via a slide 13. The slider 13 is preferably made of metal and is U-shaped, so that a receptacle 14 is provided for pushing the slider 13 into the groove 12 on the piston rod 3. The piston 8 has a gap-shaped receptacle 22 for the slider 13, which is accessible for mounting the slider 13 on the piston circumference. In a mounted slide 13 in the piston 8 3 axial forces are transmitted to the piston 8 via the piston rod. It is in particular the broad surfaces of the slider 13, which support the connection between the piston rod 3 and piston 8 against the axial forces, so as to avert a penetration of the piston rod 3 by the piston 8. The damper 1 is designed as a pressure damper, so that in particular when inserting the piston rod 3 in the housing 2 high loads occur when the channel 20 is covered by a valve disc.

Auf der gegenüberliegenden Seite der Kolbenstange 3 ist ein Verbindungselement 4 aus Kunststoff vorgesehen, dass an der ringförmigen Nut 15 verrastet ist. Das Verbindungselement 4 weist eine zylindrische Aufnahme 5 auf, in die ein Bolzen eines Hebels eines Scharniers einfügbar ist. Die Aufnahme 5 ist dabei so gestaltet, dass ein Teil einer Stirnseite 17 der Kolbenstange 3 sichtbar ist. Hierfür ist an der Aufnahme 5 ein Schlitz 18 ausgebildet, der sich über die gesamte Länge der Stirnseite 17 erstreckt. Ein Teil der Stirnseite 17 ist durch das Verbindungselement 4 verdeckt, der längliche Schlitz 18 lässt jedoch einen mittleren Bereich der Stirnseite 17 frei, so dass dieser Bereich als Anlagefläche für einen Bolzen dienen kann, der hier durch den Schlitz unmittelbar am Bolzen anliegen kann. Auf diese Weise können hohe Druckkräfte über die Kolbenstange 3 übertragen werden, ohne dass das weiche Material des Verbindungselementes 4 belastet wird. Meist bestehen die Bolzen bei Scharnieren ebenfalls aus Metall, so dass die Kräfte über die metallische Kolbenstange 3 und den Bolzen direkt übertragen werden. Im Hinblick auf die Zugbelastung an dem Verbindungselement 4 wirken nur geringe Kräfte wegen der Ausbildung als Druckdämpfer, so dass an dem Verbindungselement 4 ein ringförmiger Vorsprung 16 zur Verrastung an der Nut 15 ausreichend ist.On the opposite side of the piston rod 3, a connecting element 4 is provided made of plastic, that is latched to the annular groove 15. The Connecting element 4 has a cylindrical receptacle 5, in which a bolt of a lever of a hinge can be inserted. The receptacle 5 is designed so that a part of an end face 17 of the piston rod 3 is visible. For this purpose, a slot 18 is formed on the receptacle 5, which extends over the entire length of the end face 17. A part of the end face 17 is concealed by the connecting element 4, but the elongate slot 18 leaves a central region of the end face 17 free, so that this area can serve as a contact surface for a bolt, which can abut directly on the bolt through the slot. In this way, high pressure forces can be transmitted via the piston rod 3, without the soft material of the connecting element 4 is charged. Most of the bolts in hinges also made of metal, so that the forces on the metallic piston rod 3 and the bolt are transmitted directly. With regard to the tensile load on the connecting element 4, only small forces act because of the design as a pressure damper, so that on the connecting element 4, an annular projection 16 is sufficient for locking on the groove 15.

In dem dargestellten Ausführungsbeispiel umfasst das Verbindungselement 4 eine zylindrische Aufnahme 5 für einen Bolzen. Es ist natürlich auch möglich, die Form der Aufnahme 5 offen zu gestalten, beispielsweise können zwei U-förmige Schenkel einen Bolzen umgreifen, so dass ein Einrasten des Bolzens ermöglicht wird, denn die hohen Belastungen treten nur bei einem Einschieben der Kolbenstange 3 auf, so dass durch den Schlitz 18 die Zugänglichkeit zu der Stirnseite des Bolzens 3 gewährleistet ist und die geringeren Zugbelastungen beim Herausziehen der Kolbenstange 3 auch von einer U-förmigen Aufnahme aufgenommen werden können. Zudem kann die Aufnahme 5 auch abweichend von der Zylinderform ausgebildet sein, insbesondere kann die Stirnseite 17 der Kolbenstange 3 vollständig zugänglich sein, damit ein entsprechendes Bauteil dort für die Übertragung von Druckkräften anlegbar ist.In the illustrated embodiment, the connecting element 4 comprises a cylindrical receptacle 5 for a bolt. It is of course also possible to make the shape of the receptacle 5 open, for example, two U-shaped legs can embrace a bolt, so that a locking of the bolt is made possible, because the high loads occur only upon insertion of the piston rod 3, so that the accessibility to the end face of the bolt 3 is ensured by the slot 18 and the lower tensile loads during withdrawal of the piston rod 3 can also be absorbed by a U-shaped receptacle. In addition, the receptacle 5 may also be deviating from the cylindrical shape, in particular, the end face 17 of the piston rod 3 may be completely accessible, so that a corresponding component can be applied there for the transmission of compressive forces.

Claims (9)

  1. Damper (1) for furniture, in particular hinges, having a housing (2) in which a piston (8), connected to a piston rod (3), is accommodated in a displaceable manner, wherein a fluid flows through a flow channel (11) on or in the piston (8) as the piston (8) moves within the housing (2), and a connecting element (4) with a holder (5) for coupling to a component arranged in the holder (5) is provided on the piston rod (3), on the end portion projecting on the housing (2), characterized in that, on the end side of the piston rod (3) mounted on it, the holder (5) has an aperture (18) which allows for direct mechanical contact of an end side (17) of the piston rod (3) with the component mounted in the holder (5), and therefore, under pressure activation, force can flow directly in the axial direction to the piston rod (3) from the component mounted in the holder.
  2. Damper according to Claim 1, characterized in that the aperture (18) is of slot-like design and extends over the entire length of the end side (17).
  3. Damper according to Claim 1 or 2, characterized in that the holder (5) is designed as an essentially cylindrical eyelet.
  4. Damper according to one of Claims 1 to 3, characterized in that the piston rod (3) is formed from metal.
  5. Damper according to one of Claims 1 to 4, characterized in that the connecting element (4) is plugged onto the piston rod (3).
  6. Damper according to one of Claims 1 to 5, characterized in that the connecting element (4) is produced from plastics material and is latched on the piston rod (3).
  7. Damper according to one of Claims 1 to 6, characterized in that the damper (1) is designed as a pressure damper and higher damping forces are generated when the piston rod (3) is being pushed into the housing (2) than when it is being pulled out.
  8. Damper according to one of Claims 1 to 7, characterized in that the piston (8) is secured on the piston rod (3) via a metallic slide (13).
  9. Hinge, characterized by the provision of a damper (1) according to one of the preceding claims.
EP10714626A 2009-04-28 2010-04-16 Damper for furniture Active EP2425079B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL10714626T PL2425079T3 (en) 2009-04-28 2010-04-16 Damper for furniture

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE202009004751U DE202009004751U1 (en) 2009-04-28 2009-04-28 Damper for furniture
PCT/EP2010/055035 WO2010124946A1 (en) 2009-04-28 2010-04-16 Damper for furniture

Publications (2)

Publication Number Publication Date
EP2425079A1 EP2425079A1 (en) 2012-03-07
EP2425079B1 true EP2425079B1 (en) 2013-04-03

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP10714626A Active EP2425079B1 (en) 2009-04-28 2010-04-16 Damper for furniture

Country Status (10)

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US (1) US9359801B2 (en)
EP (1) EP2425079B1 (en)
JP (1) JP5444576B2 (en)
KR (1) KR101666780B1 (en)
CN (1) CN102482906B (en)
DE (1) DE202009004751U1 (en)
ES (1) ES2416455T3 (en)
PL (1) PL2425079T3 (en)
PT (1) PT2425079E (en)
WO (1) WO2010124946A1 (en)

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AT12632U1 (en) * 2010-12-10 2012-09-15 Blum Gmbh Julius DAMPING DEVICE FOR A FURNITURE FITTING
DE102013001650B4 (en) * 2013-01-31 2015-07-23 Günther Zimmer Cylinder-piston unit with piston throttle
KR101290252B1 (en) * 2013-05-03 2013-07-30 삼성정밀공업 주식회사 Door damper of furniture hinge with self-pressure adjustment function
JP6292849B2 (en) * 2013-11-29 2018-03-14 日立オートモティブシステムズ株式会社 Cylinder device manufacturing method
AT516587B1 (en) 2014-12-09 2023-06-15 Blum Gmbh Julius furniture hinge
US9828795B1 (en) * 2015-04-28 2017-11-28 Wayne W. Ramsdell Hinge and applications thereof
US11530560B1 (en) 2015-04-28 2022-12-20 Wayne W. Ramsdell Hinge and applications thereof
US10428565B1 (en) 2015-04-28 2019-10-01 Wayne W. Ramsdell Hinge and applications thereof
AT517378B1 (en) 2015-06-18 2017-07-15 Blum Gmbh Julius hinge
DE102017112998A1 (en) * 2017-06-13 2018-12-13 Thyssenkrupp Ag vibration
DE102021201221A1 (en) 2021-02-09 2022-08-11 Suspa Gmbh Subassembly for a fluid-filled piston-cylinder unit and fluid-filled piston-cylinder unit with such an assembly
US11920401B2 (en) 2021-05-03 2024-03-05 Kohler Co. Slow close mechanism for sliding applications

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JPS5712852U (en) * 1980-06-26 1982-01-22
GB2131119B (en) * 1982-11-30 1987-06-03 Wipac Group Sales A fluid-damped piston & cylinder assembly
DE19503499C1 (en) * 1995-02-03 1996-03-28 Fichtel & Sachs Ag Link eyelet for shock absorber
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DE10348971A1 (en) * 2003-10-22 2005-05-25 Zf Friedrichshafen Ag damping element
KR101122069B1 (en) * 2004-03-17 2012-03-14 엘지전자 주식회사 oil damper for drum-type washing machine
DE202004009535U1 (en) * 2004-06-16 2005-11-10 Alfit Ag Device for damping or deceleration of moving furniture parts of furniture
DE202006003197U1 (en) * 2006-03-01 2007-07-12 Hettich-Oni Gmbh & Co. Kg Damper for furniture
DE202007004621U1 (en) 2007-03-29 2008-08-07 Hettich-Oni Gmbh & Co. Kg Multilink hinge

Also Published As

Publication number Publication date
JP5444576B2 (en) 2014-03-19
US20120096679A1 (en) 2012-04-26
PL2425079T3 (en) 2013-08-30
JP2012525550A (en) 2012-10-22
CN102482906A (en) 2012-05-30
EP2425079A1 (en) 2012-03-07
ES2416455T3 (en) 2013-08-01
CN102482906B (en) 2014-07-02
PT2425079E (en) 2013-05-13
KR101666780B1 (en) 2016-10-17
KR20120013414A (en) 2012-02-14
DE202009004751U1 (en) 2010-09-09
WO2010124946A1 (en) 2010-11-04
US9359801B2 (en) 2016-06-07

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