EP3814595B1 - Amortisseur - Google Patents

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Publication number
EP3814595B1
EP3814595B1 EP19730121.1A EP19730121A EP3814595B1 EP 3814595 B1 EP3814595 B1 EP 3814595B1 EP 19730121 A EP19730121 A EP 19730121A EP 3814595 B1 EP3814595 B1 EP 3814595B1
Authority
EP
European Patent Office
Prior art keywords
housing
compensation element
volume
cover
piston rod
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
EP19730121.1A
Other languages
German (de)
English (en)
Other versions
EP3814595A1 (fr
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/sl
Publication of EP3814595A1 publication Critical patent/EP3814595A1/fr
Application granted granted Critical
Publication of EP3814595B1 publication Critical patent/EP3814595B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • 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 guided in a linearly displaceable manner in an interior space, with at least one flow channel being formed on or in the piston of the piston, wherein a volume compensation element arranged in the housing, which compensates for a volume that is displaced or released by pushing part of the piston rod into or out of the housing, is displaceably mounted in the housing, the volume compensation element being attached to a cover which closes the housing at one end and forms a passage for the piston rod.
  • the EP 2 006 480 B1 discloses a damper in which a piston connected to a piston rod is slidably disposed in a cylindrical housing.
  • the damping forces are created by the flow resistance as the piston is displaced within the housing and a fluid flows through a flow passage on the piston.
  • a volume of the fluid is displaced, so that a displaceable volume compensation element is provided for compensation, which has an annular seal that is mounted on a retaining ring that is preloaded into the housing by a spring.
  • This design of the damper is disadvantageous, particularly in the area of the volume compensation element, since the assembly and manufacture of the individual components is complex.
  • DE 10 2007 031 175 B3 discloses a fitting with a damper in which a piston rod is linearly guided on a piston in a housing.
  • the piston divides the housing into two chambers, with a volume compensating element being provided in the chamber around the piston rod adjacent to an end cover on the housing.
  • a volume compensation element is provided by pushing in or pulling out part of the
  • Piston rod is slidably mounted in the housing or out of the housing in the housing, wherein the volume compensation element is formed integrally with a cover of the damper, which closes the housing at one end and forms a passage for the piston rod.
  • the volume compensation element can be installed together with the cover, for example by being pushed into the housing.
  • the volume compensation element is formed integrally with the cover.
  • a one-piece design leads to a reduction in the number of components, with at least one flexible web being arranged between the volume compensation element and the cover, which allows movement of the volume compensation element in the axial direction of the housing, while the cover remains rigidly fixed to the housing.
  • Such webs can, for example, be spiral-shaped in order to displaceably mount the volume compensation element by means of a bending or torsional movement.
  • the volume compensation element can optionally also be rotated during the sliding movement, in particular if the webs are arranged in a spiral shape.
  • a ring-shaped sealing element is preferably provided on the volume compensation element, which abuts on an inside of the housing and/or on the piston rod.
  • the ring-shaped sealing element can optionally be fixed to the volume compensation element as a separate component, 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 surrounding the piston rod can be provided on the cover to guide the piston rod.
  • the sleeve can protrude axially from the essentially disk-shaped cover, preferably outwards away from the housing.
  • the sleeve can also protrude inwards into the housing, especially if the damper is to be used in confined spaces.
  • 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 space 20, on which a piston 10 is displaceably guided.
  • a widening 11 or narrowing can optionally be provided on the cylindrical section 4 in order to change the damping forces in different areas of the housing 2 .
  • a widening 11 is provided adjacent to the head 3, so that the piston 10 can be moved more easily in the area adjacent to the head 3 than at the cylindrical portion 4 on the other side of the widening 11. It is also possible to dispense with such a widening 11 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 to an actuating part at one end 6 outside the housing 2 .
  • the end 6 is designed as a ball head and can also have other mechanical connection means.
  • An opposite end 7 is arranged in the housing 2 and can be inserted into a receptacle 8 on the floor 3 in an end position.
  • Also formed on the base 3 is a sleeve 9 which protrudes outwards from the housing 2 and serves to fasten the housing 2 to a component, for example a fitting for furniture or household appliances.
  • the housing 2 is closed on the side opposite the base 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 passage for the piston rod 5 is formed on the cover 13 , a sleeve 12 protruding outwards from the essentially disc-shaped cover 13 to guide the piston rod 5 .
  • a volume compensation element 14 is integrally formed and held on the cover 13 and is displaceable in the housing 2 .
  • the volume compensation element 14 is held on the cover 13 via struts or webs 15, the webs 15 being flexible.
  • a seal 19 is arranged on the volume compensation element 14 or is formed integrally, which seal 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 against the piston rod 5 .
  • the damper 1 according to the invention is shown in an exploded view.
  • the piston 10 is held immovably in the axial direction on the piston rod 5, the piston rod 5 being able to be of stepped design for this purpose.
  • the piston can also be designed 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 end 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 .
  • the throttle element 17 can be lifted off the flow channels 16 when the piston rod 5 is pulled out, so that the piston rod 5 can be pulled out easily.
  • 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 shape. Instead of two webs 15, only one web or more than two webs 15 can be provided.
  • the volume compensation element 14 is 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, with the seal optionally also being able to be formed as a separate component.

Landscapes

  • Fluid-Damping Devices (AREA)

Claims (8)

  1. Amortisseur (1), en particulier pour des ferrures destinées à des meubles ou à des appareils ménagers, pourvu d'un logement (2) dans lequel un piston (10) relié à une tige de piston (5) est guidé de manière déplaçable linéairement dans un espace intérieur (20), au moins un canal d'écoulement (16), qui est traversé lors du déplacement du piston (10), est formé sur ou dans le piston (10), un élément de compensation de volume (14), qui compense un volume qui est repoussé ou libéré par une introduction ou un retrait d'une partie de la tige de piston (5) dans le logement (2) ou à l'extérieur de celui-ci, est disposé dans le logement (2), ledit élément étant monté déplaçable dans le logement (2), l'élément de compensation de volume (14) est retenu sur un cache (13) fermant le logement (2) à une extrémité et formant un passage pour la tige de piston (5), caractérisé en ce que l'élément de compensation de volume (14) est réalisé d'un seul tenant avec le cache (13) par l'intermédiaire d'au moins une entretoise (15) flexible.
  2. Amortisseur selon la revendication 1, caractérisé en ce que l'élément de compensation de volume (14) comporte un élément d'étanchéité annulaire (19) qui s'applique contre une paroi intérieure du logement (2).
  3. Amortisseur selon la revendication 1 ou 2, caractérisé en ce que l'au moins une entretoise flexible (15) est orientée en forme de spirale dans la direction longitudinale du logement (2).
  4. Amortisseur selon la revendication 1 ou 3, caractérisé en ce que deux entretoises (15) sont prévues, qui relient l'élément de compensation de volume (14) au cache (13).
  5. Amortisseur selon l'une des revendications précédentes, caractérisé en ce que le cache (13) comporte un manchon (12) pour le guidage de la tige de piston (5).
  6. Amortisseur selon la revendication 5, caractérisé en ce que le manchon (12) fait saillie vers l'extérieur du logement (2) et du cache (13) dans la direction longitudinale du logement (2).
  7. Amortisseur selon l'une des revendications précédentes, caractérisé en ce que l'élément de compensation de volume (14), le cache (13) et au moins une entretoise (15) reliant le cache (13) à l'élément de compensation de volume (14) sont fabriqués sous forme de pièce moulée par injection en matière plastique.
  8. Ferrure, en particulier charnière ou fermeture automatique pour une coulisse de tiroir avec un amortisseur selon l'une des revendications précédentes.
EP19730121.1A 2018-06-26 2019-06-04 Amortisseur Active EP3814595B1 (fr)

Priority Applications (1)

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

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE202018103637.8U DE202018103637U1 (de) 2018-06-26 2018-06-26 Dämpfer
PCT/EP2019/064488 WO2020001936A1 (fr) 2018-06-26 2019-06-04 Amortisseur

Publications (2)

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

Family

ID=66826952

Family Applications (1)

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

Country Status (8)

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

Families Citing this family (1)

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

Family Cites Families (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL105048C (fr) * 1957-02-06
DE6604159U (de) * 1966-02-26 1969-12-11 Hoesch Ag Einrohr-teleskopschwingungsdaempfer, insbesondere fuer kraftfahrzeuge
DE2623873A1 (de) 1976-05-28 1977-12-15 Volkswagenwerk Ag Zumindest ein druckmedium enthaltende abstuetzvorrichtung, insbesondere fuer die heckklappe eines kraftfahrzeugs
US6113082A (en) * 1997-06-27 2000-09-05 Nishikawa Sangyo Co., Ltd. Spring
JPH11325152A (ja) * 1998-05-19 1999-11-26 Matsushita Electric Ind Co Ltd ダンパ装置
DE50312571D1 (de) * 2003-11-18 2010-05-12 Spiroplex Gmbh Auflagerelement
DE202005020820U1 (de) * 2004-09-17 2006-08-17 Julius Blum Gmbh Fluiddämpfer
DE202006003197U1 (de) * 2006-03-01 2007-07-12 Hettich-Oni Gmbh & Co. Kg Dämpfer für Möbel
DE102007031175B3 (de) 2007-07-04 2008-10-09 Zimmer, Günther Beschlag mit relativ zueinander schwenkbaren Beschlagteilen und mit einer Verzögerungseinrichtung
DE202009004752U1 (de) * 2009-04-28 2010-09-09 Druck- und Spritzgußwerk Hettich GmbH & Co. KG Dämpfer für Möbel
EP2473754A4 (fr) * 2009-09-03 2014-01-01 Keter Plastic Ltd Dispositif, système et procédé de garniture injectée
JP2011094749A (ja) * 2009-10-30 2011-05-12 Hitachi Automotive Systems Ltd 緩衝器
JP5365804B2 (ja) * 2009-12-22 2013-12-11 日立オートモティブシステムズ株式会社 緩衝器
CN201705851U (zh) * 2010-06-29 2011-01-12 沈秋庆 阻尼缓冲器
AT513330B1 (de) * 2012-08-27 2017-04-15 Blum Gmbh Julius Dämpfvorrichtung für bewegbare Möbelteile
DE102013001650B4 (de) * 2013-01-31 2015-07-23 Günther Zimmer Zylinder-Kolben-Einheit mit Kolbendrossel
EP2940341B1 (fr) * 2014-04-30 2018-06-20 FESTO AG & Co. KG Structure de construction légère
GB2541396A (en) * 2015-08-17 2017-02-22 Titus D O O Dekani Improvements in dampers
DE102017102079A1 (de) 2017-02-02 2018-08-02 Druck- und Spritzgußwerk Hettich GmbH & Co. KG Bremsvorrichtung und Interieur-Baugruppe eines Kraftfahrzeugs mit einer Bremsvorrichtung
CN106641084B (zh) * 2017-02-21 2018-06-12 沈阳建筑大学 一种单出杆阻尼器

Also Published As

Publication number Publication date
CN112513397B (zh) 2022-12-06
CN112513397A (zh) 2021-03-16
EP3814595A1 (fr) 2021-05-05
US20210246703A1 (en) 2021-08-12
JP7325456B2 (ja) 2023-08-14
US11866986B2 (en) 2024-01-09
DE202018103637U1 (de) 2019-09-27
JP2021529289A (ja) 2021-10-28
PL3814595T3 (pl) 2023-01-23
WO2020001936A1 (fr) 2020-01-02
SI3814595T1 (sl) 2023-02-28

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