EP3814595A1 - Damper - Google Patents

Damper

Info

Publication number
EP3814595A1
EP3814595A1 EP19730121.1A EP19730121A EP3814595A1 EP 3814595 A1 EP3814595 A1 EP 3814595A1 EP 19730121 A EP19730121 A EP 19730121A EP 3814595 A1 EP3814595 A1 EP 3814595A1
Authority
EP
European Patent Office
Prior art keywords
housing
cover
compensation element
piston
volume compensation
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.)
Granted
Application number
EP19730121.1A
Other languages
German (de)
French (fr)
Other versions
EP3814595B1 (en
Inventor
Stefan WASCHK
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
Original Assignee
Druck und Spritzgusswerk Hettich 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 Druck und Spritzgusswerk Hettich GmbH and Co KG filed Critical Druck und Spritzgusswerk Hettich GmbH and Co KG
Priority to SI201930418T priority Critical patent/SI3814595T1/en
Publication of EP3814595A1 publication Critical patent/EP3814595A1/en
Application granted granted Critical
Publication of EP3814595B1 publication Critical patent/EP3814595B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

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
    • 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
    • E05Y2201/00—Constructional elements; Accessories therefor
    • E05Y2201/20—Brakes; Disengaging means; Holders; Stops; Valves; Accessories therefor
    • E05Y2201/21—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
    • E05Y2201/00—Constructional elements; Accessories therefor
    • E05Y2201/20—Brakes; Disengaging means; Holders; Stops; Valves; Accessories therefor
    • E05Y2201/252—Type of friction
    • E05Y2201/254—Fluid or viscous friction
    • E05Y2201/256—Fluid or viscous friction with pistons or vanes
    • 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
    • E05Y2201/20—Brakes; Disengaging means; Holders; Stops; Valves; Accessories therefor
    • E05Y2201/262—Type of motion, e.g. braking
    • E05Y2201/264—Type of motion, e.g. braking linear
    • 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, in particular for fittings for furniture or household appliances, with a housing in which a piston connected to a piston rod is linearly displaceable in an interior space, with at least one flow channel being formed on or in the piston, which is flowed through when the piston is displaced, a volume compensation element arranged in the housing being provided which compensates for a volume which is displaced or released by inserting or pulling out a part of the piston rod into or out of the housing, slidably mounted in the housing is.
  • EP 2 006 480 B1 discloses a damper in which a piston connected to a piston rod is slidably arranged in a cylindrical housing. The damping forces are generated by the flow resistance when the piston is displaced within the housing and a fluid flows through a flow channel on the piston.
  • a displaceable volume compensation element is provided for compensation, which has an annular seal which is mounted on a retaining ring which is biased by a spring into the housing ,
  • This structure of the damper is disadvantageous especially in the area of the volume compensation element, since the assembly and manufacture of the individual components is complex.
  • a volume compensation element is seen before, which is slidably mounted in the housing by sliding or pulling out part of the piston in the housing or out of the housing, the volume compensation element being held on a cover of the damper that holds the housing closes at one end and forms a passage for the piston rod.
  • This allows the volume menu compensation element can be mounted together with the cover, for example by pushing it into the housing.
  • the volume compensation element is preferably formed integrally with the cover.
  • a one-piece design leads to a reduction in the number of components, it being possible for at least one web to be arranged between the volume compensation element and the cover, which allows the volume compensation element to move in the axial direction of the housing, while the cover remains rigidly fixed to the housing.
  • Such webs can be formed in a spiral, for example, to move the volume compensation element displaceably by a bending or torsion movement.
  • the volume compensation element can optionally also be rotated during the sliding movement, in particular if the webs are arranged in a spiral.
  • volume compensation element On the volume compensation element is preferably an annular you telement provided, which rests on an inside of the housing and / or on the piston rod.
  • the annular sealing element can either be fixed as a special component on the volume compensation element, or it can also be formed integrally with the volume compensation element.
  • the volume compensation element can be designed, for example, as an injection molded part, so that an elastic sealing element can be produced by using suitable thin-walled flexible plastics.
  • a sleeve can be provided on the cover, which surrounds the piston rod.
  • the sleeve can protrude axially from the Chen Chen disk-shaped cover, preferably outwardly away from the housing.
  • the sleeve can also protrude inwards into the housing, especially if the damper is to be used in tight spaces.
  • FIGS 1 A and 1 B two views of the damper according to the invention with the piston rod extended;
  • FIGS 2A and 2B two views of the damper of Figure 1 with a retracted piston rod
  • Figure 3 is an exploded perspective view of the damper of Figure 1.
  • a damper 1 comprises a housing 2 and a piston rod 5 protruding from the housing 2.
  • the housing 2 has a cylindrical section 4 in an interior 20, on which a piston 10 is displaceably guided.
  • an expansion 11 or taper may optionally be provided to change the damping forces at different areas of the housing 2.
  • an expansion 11 is provided adjacent to the base 3, so that the piston 10 in the region adjacent to the base 3 can be moved more smoothly than on the cylindrical section 4 on the other side of the expansion 1 1 it is also possible to dispense with such an expansion 1 1 and to form the cylindrical section 4 essentially continuously with the same inner diameter.
  • the piston 10 is held on the piston rod 5, which can be connected at one end 6 outside the housing 2 to an actuating part.
  • the end 6 is designed as a ball head and can also have other mechanical connec tion means.
  • An opposite end 7 is arranged in the housing 2 and can be inserted in an end position in a receptacle 8 on the bottom 3.
  • On the bottom 3 is also formed from the housing 2 outwardly projecting sleeve 9, which is used to attach the housing 2 to a component, such as a fitting for furniture or household.
  • the housing 2 is closed on the side opposite the bottom 3 by an annular cover 13, which is held stationary on the housing 2 and can optionally also be glued or welded to it.
  • a bushing for the piston rod 5 is formed on the cover 13, a sleeve 12 projecting outward from the essentially disk-shaped cover 13 for guiding the piston rod 5.
  • a volume compensation element 14 is also held on the cover 13 and is displaceable in the housing 2. As FIGS. 1B and 2B show, by pushing the piston rod 5 into the housing 2, the fluid can flow through the piston 10 to generate the damping forces, the pushing in of the piston rod 5 partially displacing the fluid volume, which is compensated for by a displacement of the volume compensation element 14 becomes.
  • the Volume compensation element 14 is held on the cover 13 via struts or webs 15, the webs 15 being bendable.
  • a seal 19 is also arranged or integrally formed, which ensures a seal between the volume compensation element 14 and an inner wall of the housing 2.
  • the seal 19 can also provide a seal with respect to the piston rod 5.
  • the damper 1 according to the invention is shown in an exploded view.
  • the piston 10 On the piston rod 5, the piston 10 is held non-displaceably in the axial direction, wherein the piston rod 5 can be designed stepped for this.
  • the piston can also be formed in one piece with the piston rod.
  • One or more flow channels 16 are formed on the piston 10 and can be closed at the ends by an annular throttle element 17.
  • the throttle element 17 can be formed from an elastic ring which has a passage opening 18 for the piston rod 5. This allows the throttle element 17 to stand out when the piston rod 5 is pulled out of the flow channels 16, so that the rod 5 is pulled out smoothly. In the opposite direction when pushing the piston rod 5, however, the throttle element 17 is pressed onto the flow channels 16 and thus ensures a flow resistance that generates the damping forces.
  • the volume compensation element 14 is connected to the cover 13 via webs 15, which are arranged in a spiral. Instead of two webs 15, only one web or more than two webs 15 can be provided.
  • the volume compensation element 14 can optionally be formed in one piece with the webs 15 and the cover 13, for example as an injection molded part.
  • the seal 19 can also be produced by integrally formed sealing lips, wherein the seal can optionally also be designed as a separate component. LIST OF REFERENCE NUMBERS

Landscapes

  • Fluid-Damping Devices (AREA)

Abstract

The invention relates to a damper (1), in particular for fittings for furniture or household appliances, comprising a housing (2) in which, in an interior space (20), a piston (10) connected to a piston rod (5) is guided in a linearly moveable manner, wherein at least one flow channel (16) is formed on or in the piston (10) through which a fluid flows when the piston (10) is moved, wherein a volume-compensation element (14) arranged in the housing (2) is provided, which compensates for a volume that is displaced or released with a pushing or pulling of a part of the piston rod (5) into or out of the housing (2), slidingly mounted in the housing (2), wherein the volume-compensation element (14) is retained on a cover (13) which closes the housing (2) at one end and forms a through-opening for the piston rod (5).

Description

Dämpfer  damper
Die vorliegende Erfindung betrifft einen Dämpfer, insbesondere für Beschläge für Möbel oder Haushaltsgeräte, mit einem Gehäuse, in dem in einem Innen raum ein mit einer Kolbenstange verbundener Kolben linear verschiebbar ge führt ist, wobei an oder in dem Kolben mindestens ein Strömungskanal ausge bildet ist, der beim Verschieben des Kolbens durchströmt wird, wobei ein in dem Gehäuse angeordnetes Volumenausgleichselement vorgesehen ist, das ein Volumen kompensiert, das durch ein Einschieben oder Herausziehen eines Teils der Kolbenstange in das oder aus dem Gehäuse verdrängt oder freigege ben wird, verschiebbar in dem Gehäuse gelagert ist. The present invention relates to a damper, in particular for fittings for furniture or household appliances, with a housing in which a piston connected to a piston rod is linearly displaceable in an interior space, with at least one flow channel being formed on or in the piston, which is flowed through when the piston is displaced, a volume compensation element arranged in the housing being provided which compensates for a volume which is displaced or released by inserting or pulling out a part of the piston rod into or out of the housing, slidably mounted in the housing is.
Die EP 2 006 480 B1 offenbart einen Dämpfer, bei dem ein mit einer Kolben stange verbundener Kolben in einem zylindrischen Gehäuse verschiebbar an geordnet ist. Die Dämpfungskräfte werden durch den Strömungswiderstand er zeugt, wenn der Kolben innerhalb des Gehäuses verschoben wird und ein Fluid durch einen Strömungskanal an dem Kolben fließt. Beim Einschieben der Kol benstange in das Gehäuse wird dabei ein Volumen des Fluides verdrängt, so dass zur Kompensation ein verschiebbares Volumenausgleichselement vorge sehen ist, das eine ringförmige Dichtung aufweist, die an einem Haltering gela gert ist, der durch eine Feder in das Gehäuse vorgespannt ist. Dieser Aufbau des Dämpfers ist gerade im Bereich des Volumenausgleichselementes nachtei lig, da die Montage und die Herstellung der einzelnen Bauteile aufwändig ist. EP 2 006 480 B1 discloses a damper in which a piston connected to a piston rod is slidably arranged in a cylindrical housing. The damping forces are generated by the flow resistance when the piston is displaced within the housing and a fluid flows through a flow channel on the piston. When the Kol rod is pushed into the housing, a volume of the fluid is displaced, so that a displaceable volume compensation element is provided for compensation, which has an annular seal which is mounted on a retaining ring which is biased by a spring into the housing , This structure of the damper is disadvantageous especially in the area of the volume compensation element, since the assembly and manufacture of the individual components is complex.
Es ist daher Aufgabe der vorliegenden Erfindung, einen Dämpfer zu schaffen, der einfach aufgebaut und leicht zu montieren ist. It is therefore an object of the present invention to provide a damper that is simple in construction and easy to assemble.
Diese Aufgabe wird mit einem Dämpfer mit den Merkmalen des Anspruches 1 gelöst. Vorteilhafte Ausgestaltungen sind in den Unteransprüchen offenbart. This object is achieved with a damper with the features of claim 1. Advantageous refinements are disclosed in the subclaims.
Bei dem erfindungsgemäßen Dämpfer ist ein Volumenausgleichselement vor gesehen, das durch Einschieben oder Herausziehen eines Teils der Kolben stange in das Gehäuse oder aus dem Gehäuse heraus verschiebbar in dem Gehäuse gelagert ist, wobei das Volumenausgleichselement an einer Abde ckung des Dämpfers gehalten ist, die das Gehäuse an einem Ende verschließt und eine Durchführung für die Kolbenstange bildet. Dadurch kann das Volu- menausgleichselement zusammen mit der Abdeckung montiert werden, bei spielsweise durch Einschieben in das Gehäuse. In the damper according to the invention, a volume compensation element is seen before, which is slidably mounted in the housing by sliding or pulling out part of the piston in the housing or out of the housing, the volume compensation element being held on a cover of the damper that holds the housing closes at one end and forms a passage for the piston rod. This allows the volume menu compensation element can be mounted together with the cover, for example by pushing it into the housing.
Vorzugsweise ist das Volumenausgleichselement integral mit der Abdeckung ausgebildet. Eine einteilige Ausbildung führt zur Reduzierung der Anzahl der Bauteile, wobei zwischen dem Volumenausgleichselement und der Abdeckung mindestens ein Steg angeordnet sein kann, der eine Bewegung des Volumen ausgleichselementes in axiale Richtung des Gehäuses ermöglicht, während die Abdeckung starr an dem Gehäuse fixiert bleibt. Solche Stege können bei spielsweise spiralförmig ausgebildet sein, um durch eine Biege- oder Torsions bewegung das Volumenausgleichselement verschiebbar zu lagern. Das Volu menausgleichselement kann optional bei der Schiebebewegung auch gedreht werden, insbesondere wenn die Stege spiralförmig angeordnet sind. The volume compensation element is preferably formed integrally with the cover. A one-piece design leads to a reduction in the number of components, it being possible for at least one web to be arranged between the volume compensation element and the cover, which allows the volume compensation element to move in the axial direction of the housing, while the cover remains rigidly fixed to the housing. Such webs can be formed in a spiral, for example, to move the volume compensation element displaceably by a bending or torsion movement. The volume compensation element can optionally also be rotated during the sliding movement, in particular if the webs are arranged in a spiral.
An dem Volumenausgleichselement ist vorzugsweise ein ringförmiges Dich telement vorgesehen, das an einer Innenseite des Gehäuses und/oder an der Kolbenstange anliegt. Das ringförmige Dichtelement kann wahlweise als ge sondertes Bauteil an dem Volumenausgleichselement fixiert sein, oder auch in tegral mit dem Volumenausgleichselement ausgebildet sein. Das Volumenaus gleichselement kann beispielsweise als Spritzgussteil ausgebildet sein, so dass durch den Einsatz geeigneter dünnwandiger flexibler Kunststoffe ein elasti sches Dichtelement hergestellt werden kann. On the volume compensation element is preferably an annular you telement provided, which rests on an inside of the housing and / or on the piston rod. The annular sealing element can either be fixed as a special component on the volume compensation element, or it can also be formed integrally with the volume compensation element. The volume compensation element can be designed, for example, as an injection molded part, so that an elastic sealing element can be produced by using suitable thin-walled flexible plastics.
Zur Führung der Kolbenstange kann an der Abdeckung eine Hülse vorgesehen sein, die die Kolbenstange umgibt. Die Hülse kann dabei von der im Wesentli chen scheibenförmigen Abdeckung axial hervorstehen, vorzugsweise nach au ßen weg von dem Gehäuse. Optional kann die Hülse auch nach innen in das Gehäuse hervorstehen, insbesondere wenn der Dämpfer bei beengten Platz verhältnissen eingesetzt werden soll. To guide the piston rod, a sleeve can be provided on the cover, which surrounds the piston rod. The sleeve can protrude axially from the Chen Chen disk-shaped cover, preferably outwardly away from the housing. Optionally, the sleeve can also protrude inwards into the housing, especially if the damper is to be used in tight spaces.
Die Erfindung wird nachfolgend anhand eines Ausführungsbeispiels mit Bezug auf die beigefügten Zeichnungen näher erläutert. Es zeigen: The invention is explained below using an exemplary embodiment with reference to the accompanying drawings. Show it:
Figuren 1 A und 1 B zwei Ansichten des erfindungsgemäßen Dämpfers mit ausgefahrener Kolbenstange; Figures 1 A and 1 B two views of the damper according to the invention with the piston rod extended;
Figuren 2A und 2B zwei Ansichten des Dämpfers der Figur 1 mit eingefahre ner Kolbenstange, und Figur 3 eine perspektivische Explosionsdarstellung des Dämp fers der Figur 1. Figures 2A and 2B two views of the damper of Figure 1 with a retracted piston rod, and Figure 3 is an exploded perspective view of the damper of Figure 1.
Ein Dämpfer 1 umfasst ein Gehäuse 2 und eine von dem Gehäuse 2 hervor stehende Kolbenstange 5. Das Gehäuse 2 weist in einem Innenraum 20 einen zylindrischen Abschnitt 4 auf, an dem ein Kolben 10 verschiebbar geführt ist.A damper 1 comprises a housing 2 and a piston rod 5 protruding from the housing 2. The housing 2 has a cylindrical section 4 in an interior 20, on which a piston 10 is displaceably guided.
An dem zylindrischen Abschnitt 4 kann optional eine Aufweitung 1 1 oder Ver jüngung vorgesehen sein, um die Dämpfungskräfte an unterschiedlichen Berei chen des Gehäuses 2 zu ändern. In dem dargestellten Ausführungsbeispiel ist eine Aufweitung 1 1 benachbart zu dem Boden 3 vorgesehen, so dass der Kol ben 10 in dem Bereich benachbart zu dem Boden 3 leichtgängiger bewegt werden kann als an dem zylindrischen Abschnitt 4 auf der anderen Seite der Aufweitung 1 1. Es ist auch möglich, auf eine solche Aufweitung 1 1 zu verzich ten und den zylindrischen Abschnitt 4 im Wesentlichen durchgängig mit dem gleichen Innendurchmesser auszubilden. On the cylindrical portion 4, an expansion 11 or taper may optionally be provided to change the damping forces at different areas of the housing 2. In the illustrated embodiment, an expansion 11 is provided adjacent to the base 3, so that the piston 10 in the region adjacent to the base 3 can be moved more smoothly than on the cylindrical section 4 on the other side of the expansion 1 1 it is also possible to dispense with such an expansion 1 1 and to form the cylindrical section 4 essentially continuously with the same inner diameter.
Der Kolben 10 ist an der Kolbenstange 5 gehalten, die an einem Ende 6 au ßerhalb des Gehäuses 2 mit einem Betätigungsteil verbindbar ist. Das Ende 6 ist als Kugelkopf ausgebildet und kann auch andere mechanische Verbin dungsmittel aufweisen. Ein gegenüberliegendes Ende 7 ist in dem Gehäuse 2 angeordnet und kann in einer Endposition in eine Aufnahme 8 an dem Boden 3 eingefügt werden. An dem Boden 3 ist ferner eine von dem Gehäuse 2 nach außen hervorstehende Hülse 9 ausgebildet, die zur Befestigung des Gehäuses 2 an einem Bauteil, beispielsweise einem Beschlag für Möbel oder Haushalts geräte, dient. The piston 10 is held on the piston rod 5, which can be connected at one end 6 outside the housing 2 to an actuating part. The end 6 is designed as a ball head and can also have other mechanical connec tion means. An opposite end 7 is arranged in the housing 2 and can be inserted in an end position in a receptacle 8 on the bottom 3. On the bottom 3 is also formed from the housing 2 outwardly projecting sleeve 9, which is used to attach the housing 2 to a component, such as a fitting for furniture or household.
Das Gehäuse 2 ist auf der zu dem Boden 3 gegenüberliegenden Seite durch eine ringförmige Abdeckung 13 geschlossen, die stationär an dem Gehäuse 2 gehalten ist und optional auch mit diesem verklebt oder verschweißt sein kann. An der Abdeckung 13 ist eine Durchführung für die Kolbenstange 5 ausgebil det, wobei zur Führung der Kolbenstange 5 eine Hülse 12 nach außen von der in Wesentlichen scheibenförmigen Abdeckung 13 hervorsteht. The housing 2 is closed on the side opposite the bottom 3 by an annular cover 13, which is held stationary on the housing 2 and can optionally also be glued or welded to it. A bushing for the piston rod 5 is formed on the cover 13, a sleeve 12 projecting outward from the essentially disk-shaped cover 13 for guiding the piston rod 5.
An der Abdeckung 13 ist ferner ein Volumenausgleichselement 14 gehalten, das in dem Gehäuse 2 verschiebbar ist. Wie die Figuren 1 B und 2B zeigen, kann durch Einschieben der Kolbenstange 5 in das Gehäuse 2 das Fluid den Kolben 10 zur Erzeugung der Dämpfungskräfte durchströmen, wobei das Ein schieben der Kolbenstange 5 das Fluidvolumen teilweise verdrängt, was durch ein Verschieben des Volumenausgleichselementes 14 kompensiert wird. Das Volumenausgleichselement 14 ist dabei über Streben oder Stege 15 an der Abdeckung 13 gehalten, wobei die Stege 15 biegbar sind. An dem Volumen ausgleichselement 14 ist ferner eine Dichtung 19 angeordnet oder integral aus gebildet, die für eine Abdichtung zwischen dem Volumenausgleichselement 14 und einer Innenwand des Gehäuses 2 sorgt. Optional kann die Dichtung 19 auch eine Abdichtung gegenüber der Kolbenstange 5 bereitstellen. A volume compensation element 14 is also held on the cover 13 and is displaceable in the housing 2. As FIGS. 1B and 2B show, by pushing the piston rod 5 into the housing 2, the fluid can flow through the piston 10 to generate the damping forces, the pushing in of the piston rod 5 partially displacing the fluid volume, which is compensated for by a displacement of the volume compensation element 14 becomes. The Volume compensation element 14 is held on the cover 13 via struts or webs 15, the webs 15 being bendable. On the volume compensation element 14, a seal 19 is also arranged or integrally formed, which ensures a seal between the volume compensation element 14 and an inner wall of the housing 2. Optionally, the seal 19 can also provide a seal with respect to the piston rod 5.
In Figur 3 ist der erfindungsgemäße Dämpfer 1 in einer Explosionsdarstellung gezeigt. An der Kolbenstange 5 ist der Kolben 10 in axiale Richtung unver schieblich gehalten, wobei die Kolbenstange 5 hierfür gestuft ausgebildet sein kann. Optional kann der Kolben auch einstückig mit der Kolbenstange ausge bildet sein. An dem Kolben 10 sind ein oder mehrere Strömungskanäle 16 aus gebildet, die endseitig durch ein ringförmiges Drosselelement 17 verschließbar sind. Das Drosselelement 17 kann aus einem elastischen Ring gebildet sein, der eine Durchtrittsöffnung 18 für die Kolbenstange 5 aufweist. Dadurch kann sich das Drosselelement 17 bei einem Herausziehen der Kolbenstange 5 von den Strömungskanälen 16 abheben, so dass das Herausziehen der Kolben stange 5 leichtgängig erfolgt. In die gegenüberliegende Richtung beim Ein schieben der Kolbenstange 5 wird das Drosselelement 17 hingegen auf die Strömungskanäle 16 gedrückt und sorgt somit für einen Strömungswiderstand, der die Dämpfungskräfte erzeugt. In Figure 3, the damper 1 according to the invention is shown in an exploded view. On the piston rod 5, the piston 10 is held non-displaceably in the axial direction, wherein the piston rod 5 can be designed stepped for this. Optionally, the piston can also be formed in one piece with the piston rod. One or more flow channels 16 are formed on the piston 10 and can be closed at the ends by an annular throttle element 17. The throttle element 17 can be formed from an elastic ring which has a passage opening 18 for the piston rod 5. This allows the throttle element 17 to stand out when the piston rod 5 is pulled out of the flow channels 16, so that the rod 5 is pulled out smoothly. In the opposite direction when pushing the piston rod 5, however, the throttle element 17 is pressed onto the flow channels 16 and thus ensures a flow resistance that generates the damping forces.
Das Volumenausgleichselement 14 ist über Stege 15 mit der Abdeckung 13 verbunden, die spiralförmig angeordnet sind. Statt zwei Stegen 15 kann auch nur ein Steg oder mehr als zwei Stege 15 vorgesehen werden. The volume compensation element 14 is connected to the cover 13 via webs 15, which are arranged in a spiral. Instead of two webs 15, only one web or more than two webs 15 can be provided.
Das Volumenausgleichselement 14 kann optional einstückig mit den Stegen 15 und der Abdeckung 13 ausgebildet sein, beispielsweise als Spritzgussteil. Auch die Dichtung 19 kann durch integral ausgebildete Dichtlippen hergestellt sein, wobei optional die Dichtung auch als gesondertes Bauteil ausgebildet sein kann. Bezugszeichenliste The volume compensation element 14 can optionally be formed in one piece with the webs 15 and the cover 13, for example as an injection molded part. The seal 19 can also be produced by integrally formed sealing lips, wherein the seal can optionally also be designed as a separate component. LIST OF REFERENCE NUMBERS
1 Dämpfer 1 damper
2 Gehäuse  2 housings
3 Boden  3 floor
4 zylindrischer Abschnitt  4 cylindrical section
5 Kolbenstange  5 piston rod
6 Ende  6 end
7 Ende  7 end
8 Aufnahme  8 recording
9 Hülse  9 sleeve
10 Kolben  10 pistons
1 1 Aufweitung  1 1 expansion
12 Hülse  12 sleeve
13 Abdeckung  13 cover
14 Volumenausgleichselement  14 volume compensation element
15 Steg  15 bridge
1 6 Strömungskanal  1 6 flow channel
17 Drosselelement  17 throttle element
18 Durchtrittsöffnung  18 passage opening
19 Dichtung  19 seal
20 Innenraum  20 interior

Claims

Ansprüche Expectations
1. Dämpfer (1 ), insbesondere für Beschläge für Möbel oder Haushaltsgeräte, mit einem Gehäuse (2), in dem in einem Innenraum (20) ein mit einer Kol benstange (5) verbundener Kolben (10) linear verschiebbar geführt ist, wobei an oder in dem Kolben (10) mindestens ein Strömungskanal (16) ausgebildet ist, der beim Verschieben des Kolbens (10) durchströmt wird, wobei ein in dem Gehäuse (2) angeordnetes Volumenausgleichselement (14) vorgesehen ist, das ein Volumen kompensiert, das durch ein Ein schieben oder Herausziehen eines Teils der Kolbenstange (5) in das oder aus dem Gehäuse (2) verdrängt oder freigegeben wird, verschiebbar in dem Gehäuse (2) gelagert ist, dadurch gekennzeichnet, dass das Volu menausgleichselement (14) an einer Abdeckung (13) gehalten ist, die das Gehäuse (2) an einem Ende verschließt und ein Durchführung für die Kol benstange (5) bildet. 1. damper (1), in particular for fittings for furniture or household appliances, with a housing (2) in which in an interior (20) with a Kol ben rod (5) connected piston (10) is guided linearly displaceably, with or at least one flow channel (16) is formed in the piston (10) which is traversed when the piston (10) is displaced, a volume compensation element (14) being arranged in the housing (2) and compensating for a volume caused by a push or pull a part of the piston rod (5) into or out of the housing (2) is displaced or released, is slidably mounted in the housing (2), characterized in that the volume compensation element (14) on a cover ( 13) is held, which closes the housing (2) at one end and forms a bushing for the piston rod (5).
2. Dämpfer nach Anspruch 1 , dadurch gekennzeichnet, dass das Volu menausgleichselement (14) integral mit der Abdeckung (13) ausgebildet ist. 2. Damper according to claim 1, characterized in that the volu menausgleichselement (14) is integrally formed with the cover (13).
3. Dämpfer nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass das Volumenausgleichselement (14) ein ringförmiges Dichtelement (19) auf weist, das an einer Innenwand des Gehäuses (2) anliegt. 3. Damper according to claim 1 or 2, characterized in that the volume compensation element (14) has an annular sealing element (19) which bears against an inner wall of the housing (2).
4. Dämpfer nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass das Volumenausgleichselement (14) über mindestens ei nen biegbaren Steg (15) mit der Abdeckung (13) verbunden ist. 4. Damper according to one of the preceding claims, characterized in that the volume compensation element (14) via at least one bendable web (15) is connected to the cover (13).
5. Dämpfer nach Anspruch 4, dadurch gekennzeichnet, dass der mindes tens eine biegbare Steg (15) in Längsrichtung des Gehäuse (2) spiralför mig ausgerichtet ist. 5. Damper according to claim 4, characterized in that the at least one bendable web (15) in the longitudinal direction of the housing (2) is spirally aligned.
6. Dämpfer nach Anspruch 4 oder 5, dadurch gekennzeichnet, dass zwei Stege (15) vorgesehen sind, die das Volumenausgleichselement (14) mit der Abdeckung (13) verbinden. 6. Damper according to claim 4 or 5, characterized in that two webs (15) are provided which connect the volume compensation element (14) with the cover (13).
7. Dämpfer nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die Abdeckung (13) eine Hülse (12) zur Führung der Kol benstange (5) aufweist. 7. Damper according to one of the preceding claims, characterized in that the cover (13) has a sleeve (12) for guiding the piston rod (5).
8. Dämpfer nach Anspruch 7, dadurch gekennzeichnet, dass die Hülse (12) in Längsrichtung des Gehäuses (2) nach außen von dem Gehäuse (2) und der Abdeckung (13) hervorsteht. 8. Damper according to claim 7, characterized in that the sleeve (12) in the longitudinal direction of the housing (2) protrudes outwards from the housing (2) and the cover (13).
9. Dämpfer nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass das Volumenausgleichselement (14), die Abdeckung (13) und mindestens ein die Abdeckung (13) mit dem Volumenausgleichsele ment (14) verbindender Steg (15) als Spritzgußteil aus Kunststoff herge stellt ist. 9. Damper according to one of the preceding claims, characterized in that the volume compensation element (14), the cover (13) and at least one cover (13) with the volume compensation element (14) connecting web (15) as an injection molded part made of plastic Herge is.
10. Beschlag, insbesondere Scharnier oder Selbsteinzug für eine Auszugsfüh rung mit einem Dämpfer nach einem der vorhergehenden Ansprüche. 10. Fitting, in particular hinge or self-closing for a Auszugfüh tion with a damper according to one of the preceding claims.
EP19730121.1A 2018-06-26 2019-06-04 Damper Active EP3814595B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SI201930418T SI3814595T1 (en) 2018-06-26 2019-06-04 Damper

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE202018103637.8U DE202018103637U1 (en) 2018-06-26 2018-06-26 damper
PCT/EP2019/064488 WO2020001936A1 (en) 2018-06-26 2019-06-04 Damper

Publications (2)

Publication Number Publication Date
EP3814595A1 true EP3814595A1 (en) 2021-05-05
EP3814595B1 EP3814595B1 (en) 2022-09-21

Family

ID=66826952

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19730121.1A Active EP3814595B1 (en) 2018-06-26 2019-06-04 Damper

Country Status (8)

Country Link
US (1) US11866986B2 (en)
EP (1) EP3814595B1 (en)
JP (1) JP7325456B2 (en)
CN (1) CN112513397B (en)
DE (1) DE202018103637U1 (en)
PL (1) PL3814595T3 (en)
SI (1) SI3814595T1 (en)
WO (1) WO2020001936A1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT525400A1 (en) * 2021-08-20 2023-03-15 Blum Gmbh Julius mute

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DE6604159U (en) * 1966-02-26 1969-12-11 Hoesch Ag SINGLE TUBE TELESCOPIC VIBRATION DAMPER, ESPECIALLY FOR MOTOR VEHICLES
DE2623873A1 (en) * 1976-05-28 1977-12-15 Volkswagenwerk Ag Pressurised support for vehicle boot lid - has piston and sliding seal loaded with compression spring
US6113082A (en) * 1997-06-27 2000-09-05 Nishikawa Sangyo Co., Ltd. Spring
JPH11325152A (en) * 1998-05-19 1999-11-26 Matsushita Electric Ind Co Ltd Damper device
DK1532900T3 (en) * 2003-11-18 2010-07-12 Spiroplex Gmbh support element
DE202005020820U1 (en) * 2004-09-17 2006-08-17 Julius Blum Gmbh fluid damper
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DE102007031175B3 (en) * 2007-07-04 2008-10-09 Zimmer, Günther Fitting with relatively pivotable fitting parts and with a delay device
DE202009004752U1 (en) * 2009-04-28 2010-09-09 Druck- und Spritzgußwerk Hettich GmbH & Co. KG Damper for furniture
EP2473754A4 (en) * 2009-09-03 2014-01-01 Keter Plastic Ltd Device, system, and method of injected padding
JP2011094749A (en) * 2009-10-30 2011-05-12 Hitachi Automotive Systems Ltd Shock absorber
JP5365804B2 (en) * 2009-12-22 2013-12-11 日立オートモティブシステムズ株式会社 Shock absorber
CN201705851U (en) * 2010-06-29 2011-01-12 沈秋庆 Damping buffer
AT513330B1 (en) * 2012-08-27 2017-04-15 Blum Gmbh Julius Damping device for movable furniture parts
DE102013001650B4 (en) * 2013-01-31 2015-07-23 Günther Zimmer Cylinder-piston unit with piston throttle
EP2940341B1 (en) * 2014-04-30 2018-06-20 FESTO AG & Co. KG Lightweight construction structure
GB2541396A (en) * 2015-08-17 2017-02-22 Titus D O O Dekani Improvements in dampers
DE102017102079A1 (en) * 2017-02-02 2018-08-02 Druck- und Spritzgußwerk Hettich GmbH & Co. KG Brake device and interior assembly of a motor vehicle with a braking device
CN106641084B (en) * 2017-02-21 2018-06-12 沈阳建筑大学 A kind of list rod damper

Also Published As

Publication number Publication date
SI3814595T1 (en) 2023-02-28
JP2021529289A (en) 2021-10-28
CN112513397B (en) 2022-12-06
WO2020001936A1 (en) 2020-01-02
CN112513397A (en) 2021-03-16
DE202018103637U1 (en) 2019-09-27
JP7325456B2 (en) 2023-08-14
US11866986B2 (en) 2024-01-09
EP3814595B1 (en) 2022-09-21
US20210246703A1 (en) 2021-08-12
PL3814595T3 (en) 2023-01-23

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