EP2585662A1 - Dispositif de fermeture de porte - Google Patents

Dispositif de fermeture de porte

Info

Publication number
EP2585662A1
EP2585662A1 EP11727398.7A EP11727398A EP2585662A1 EP 2585662 A1 EP2585662 A1 EP 2585662A1 EP 11727398 A EP11727398 A EP 11727398A EP 2585662 A1 EP2585662 A1 EP 2585662A1
Authority
EP
European Patent Office
Prior art keywords
door closer
door
closer according
sealing body
sealing
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.)
Withdrawn
Application number
EP11727398.7A
Other languages
German (de)
English (en)
Inventor
Volker Bienek
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.)
Dormakaba Deutschland GmbH
Original Assignee
Dorma Deutschland GmbH
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 Dorma Deutschland GmbH filed Critical Dorma Deutschland GmbH
Publication of EP2585662A1 publication Critical patent/EP2585662A1/fr
Withdrawn legal-status Critical Current

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
    • E05F3/00—Closers or openers with braking devices, e.g. checks; Construction of pneumatic or liquid braking devices
    • E05F3/04—Closers or openers with braking devices, e.g. checks; Construction of pneumatic or liquid braking devices with liquid piston brakes
    • E05F3/12—Special devices controlling the circulation of the liquid, e.g. valve arrangement
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05F—DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION; CHECKS FOR WINGS; WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
    • E05F3/00—Closers or openers with braking devices, e.g. checks; Construction of pneumatic or liquid braking devices
    • E05F3/04—Closers or openers with braking devices, e.g. checks; Construction of pneumatic or liquid braking devices with liquid piston brakes
    • E05F3/10—Closers or openers with braking devices, e.g. checks; Construction of pneumatic or liquid braking devices with liquid piston brakes with a spring, other than a torsion spring, and a piston, the axes of which are the same or lie in the same direction
    • E05F3/104—Closers or openers with braking devices, e.g. checks; Construction of pneumatic or liquid braking devices with liquid piston brakes with a spring, other than a torsion spring, and a piston, the axes of which are the same or lie in the same direction with cam-and-slide transmission between driving shaft and piston within the closer housing
    • 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
    • E05Y2900/10—Application of doors, windows, wings or fittings thereof for buildings or parts thereof
    • E05Y2900/13—Type of wing
    • E05Y2900/132—Doors

Definitions

  • the invention relates to a door closer according to the preamble of claim 1.
  • a door closer for the controlled closure of door systems usually spring-operated door closer are used.
  • the door closer axis is rotated via a linkage and, furthermore, a spring-loaded energy storage spring is biased via a drive device in the door closer.
  • the energy storage spring relaxes again and presses on the drive device of the door closer and the linkage, the door back to its zero position without external energy.
  • CONFIRMATION COPY adjust the closed position of the door. To ensure that the door does not strike the seat in the door frame too much when it reaches the closed position, the entire closing sequence must be controlled.
  • the door will bounce off the frame again if it closes too quickly and will sometimes spring open again. So a vibration sequence can arise until the complete rest position of the door.
  • a simple increase in the closing speed in this particular application is not possible for the following technical reasons: Since elevator doors are equipped with limit switches and automatic door locks for the closed position, a bouncing wing would interfere too fast closing speed, the control processes extremely and malfunction of the lead the entire system.
  • the solution of this problem can only be achieved with a second closing brake area, where shortly before the zero position, the speed of the door is slowed down so that it can eventually close slowly.
  • This second closing brake area can be equipped with its own control be adjusted valve.
  • the first brake area can thus be set much faster, which significantly shortens the entire closing process.
  • control valves located in the closure screw of the cylinder chamber of the door closer. Depending on the door angle and thus according to the stroke position of the damping piston, these control valves are opened by mechanical contact with the end face of the piston. In this case, a flow channel is released, which in turn controls the return flow of the hydraulic oil into the tank space of the door closer by a downstream, adjustable control valve.
  • the control valves are kept closed by means of correspondingly strong springs or an electromagnetic unit against the oil pressure in the damping chamber. Only through the mechanical contact with the damping piston, the control valve is opened. The position of the damping piston and thus the switching point are each assigned to a specific door opening angle. The remaining stroke of the damping piston from the contact point to the zero position of the door must also drive the control valve and immerse it in the screw plug.
  • door closers are provided with a hollow tube for flow control of a hydraulic locking function.
  • the hollow tube housing is firmly attached to one of the lateral locking screws and immersed to a defined breakpoint in a sealing bushing of the piston.
  • the hydraulic oil flows to a solenoid valve.
  • the solenoid valve When the solenoid valve is energized, no hydraulic oil can flow back into the tank space of the door closer, causing a locking function.
  • the seal is completely leak-free at a defined position by the interaction of the extension with a sealing body.
  • the arrangement is suitable for even the smallest door closer systems with low oil displacement (oil volume).
  • the complete freedom from leaks of the door closer according to the invention is for systems with very small oil displacement a main requirement for a rapid pressure build-up in the damping cylinder. This is preferably achieved with the door closer according to the invention, so that a strong deceleration of the door system near the zero position is made possible.
  • the control valves are preferably arranged such that above the switching point of the speed ranges, ie at the faster closing speed, both control valves are opened in parallel. From the switching point, the hydraulic oil can thus flow out of the pressure chamber of the damping cylinder only via the slowly set valve.
  • FIG. 1 shows a longitudinal section through a door closer according to the invention
  • FIG. 2 an enlarged view corresponding to FIG
  • FIG. 3 shows a representation corresponding to FIG. 2 with the drainage channel closed for fast door closing
  • FIG. 4 shows a representation corresponding to FIG. 3 of a second one
  • FIG. 1 shows a door closer 1 according to the invention, which is provided with a housing 6.
  • a drive device 20 is arranged, which can be coupled via a door closer shaft 19 and a linkage 18 with a door not shown in the figures.
  • the drive device 20 is preferably designed as a cam drive which has a cam disk 29 arranged rotationally fixed on the closer shaft 19 and two rollers 30 and 31 which rest on the cam disk 29.
  • the roller 30 is in this case mounted on a damping piston 24, while the roller 31 is arranged on a drive piston 32 which is in operative connection with an energy storage spring 21 which is arranged in the housing 6.
  • the door closer 1 has a hydraulic damping device 23. This has the damping piston 24 which is guided in a damping cylinder 5 arranged in the housing 6.
  • the damping piston 24 is in operative connection with the drive device 20, as described above.
  • the damping device 23 also has a first oil drain channel 9 associated with a fast door closing movement and a second oil drain channel 14 associated with a slow door closer movement.
  • the first discharge channel 9, seen in the direction of movement R of the damping piston 24, is arranged behind the second discharge channel 14.
  • the damping piston 24 is provided with a lance-like extension 2 which extends in the closing direction R of the damping piston 24.
  • the extension 2 is realized by a special safety valve unit 3, which is integrated in the damping piston 24.
  • the basic function and the basic structure of the extension 2 can also be achieved by a simple direct rod on or extension of the damping piston 24.
  • the extension 2 is provided with a centering bevel 26.
  • a sealing body 7 is inserted with a sealing ring 8.
  • the sealing ring 8 can be constructed in various ways and from different materials and different profile designs his.
  • an O-ring is provided as a sealing ring 8.
  • the hollow chamber 9 ' is closed by a further smaller screw plug 16 oil-tight against the outside environment of the door closer 1.
  • the drainage channel 9 for the hydraulic oil is provided, which opens into an annular channel 10.
  • a bore 11 leads to a control valve 12, which allows a fast closing of the door by appropriate adjustment.
  • a return channel 13 in the door closer housing 6 leads back into a low-pressure tank space 17 of the door closer. 1
  • the sealing body 7 is constructed in the example of two cup-like halves 41, 42, which are connectable to each other. In the example case, the two halves 41 and 42 are screwed together and limit in the state shown in Figures 2 and 3, an inner receiving space 43.
  • a compression spring 22 is arranged, which is supported on a housing end 25 facing the end of the sealing body 7 , At the other end, the compression spring 22 is supported on a pressure plate 33, which is arranged in the receiving space 43 and which can be brought into operative connection with the extension 2.
  • a further compression spring 27 is arranged, which is supported at one end to the screw plug 4 and arranged in this smaller screw plug 16. With her other Ren end, the compression spring 27 is supported on a contact shoulder 44 of the sealing body 7 from.
  • the compression spring 22 has in the embodiment shown in Figures 1 to 3 a harder spring rate than the second compression spring 27. Between the sealing body 24 and the screw plug 4 is further arranged a third compression spring 34.
  • FIGS. 1 to 3 further illustrate that the oil drain, following the second control valve 15, takes place via the return duct 13 arranged in the door closer housing 6 into the tank space 17.
  • the functional sequence of the door closer 1 described above will be explained below.
  • the sealing piston 24 moves with the extension 2 in the direction of the door closer shaft 19, whereby hydraulic oil can flow from the tank space 17 of the door closer 1 into the pressure space or damping cylinder 5 via a bore and a check valve in the damping piston.
  • the energy storage spring 21 tries to relax again and forwards via the drive device 20 of the door closer 1, the torque required for the closure in the door closer shaft 19 a.
  • a hydraulic counter-pressure in the damping cylinder 5 is built on a further reversal of the rotational movement of the door closer shaft 19 in a lifting movement of the damping piston 24. Due to the convenient for a walk-through higher opening angle of the door of z. B. 75 °, the damping piston 24 is arranged after release of the door in a position close to the closer shaft 19.
  • the extension 2 located on the damping piston 24 is completely lifted off the sealing body 7.
  • the damping piston 24 again approaches the closure screw 4 at the housing end 25.
  • the position of the damping piston 24 corresponds to the contact point of the extension 2 with the sealing body 7.
  • the sealing body 7 is still open.
  • the hydraulic oil displaced by the damping piston 24 during the closing process can flow through an oblique bore 28 in the closure screw 4 into the hollow chamber 9 'of the closure screw 4.
  • the sealing body 7 is pressed before contact with the piston extension 2 of the compression spring 27 from the sealing seat of the smaller screw 16 and thus held in the open position.
  • the oil displaced from the pressure chamber 5 during the closing process by the damping piston 24 then flows unhindered from the hollow chamber 9 'through the further drainage holes 9, 10 and 11 into the housing 6 with the sealing seat open. Subsequently, the oil flows to the control valve 12 set at a faster rate Thereafter, the further oil drain takes place via the return bore 13 into the tank space 17 of the door closer 1. The door can thus close relatively quickly.
  • the extension 2 located on the damping piston 24 is adapted in its length to the desired switching point or the desired door angle for the beginning of the second closing speed. Upon reaching this door angle, first presses the extension 2 on the pressure plate 33, which is arranged on the back of the sealing body 7. The pressure plate 33 is pressed even within the sealing body 7 of the compression spring 22, which has a harder spring rate than the outer spring 27, to a boundary of the sealing body 7.
  • the hydraulic oil can thus proceed only via the additionally present in the damping cylinder 5 second flow channel 14 to the slower set control valve 15.
  • a very high pressure build-up immediately builds up, which slows down the door and slows down to zero position.
  • the sealing body 7 Due to the pressure increase, the sealing body 7 is additionally pressed into the sealing seat 8 '.
  • the sealing seat 8 'is for the sealing body 7 is a rigid position limitation. Therefore, the residual stroke of the damping piston 24 is compensated by the switching angle to the zero position of the door with the built-in sealing body 7 compression spring 22.
  • the sealing seat 8 ' remains closed continuously.
  • the extension 2 is formed as a guide sleeve 35 which is connected to the damping piston 24.
  • the guide sleeve 35 is screwed to the damping piston 24.
  • the sealing body 7 is arranged in an inner space 45 of the guide sleeve 35.
  • the sealing body 7 is in this case biased by a compression spring 36 onto a stop 40 of the guide sleeve 35, which is arranged adjacent to the housing end 25.
  • the sealing body 7 has an end-face planar sealing surface 46 which can be applied to a housing-side sealing surface 8 '.
  • the sealing surface 8 ' is arranged on the smaller screw plug 16, which is screwed into the larger screw plug 4.
  • the representation of Figure 4 also illustrates the arrangement of three sealing rings 37, 38 and 39 between the larger screw plug 4 and the housing 6 and the screw plug 16 and the screw plug 4th
  • the sealing body 7 Since the sealing body 7 is arranged in the closure screw 16 in this embodiment, the sealing body 7, together with length compensation, can in this case be arranged in the damping piston 24 or its guide sleeve 35.
  • the sealing body 7 is in this case pressed by the additionally integrated in the guide sleeve 35 compression spring 36 against the stop 40 of the guide sleeve 35 and drives the entire stroke of the damping piston 24 with.
  • the integrated compression spring 36 serves as a length compensation for the remaining stroke of the damping piston 24, which still arises from the switching point of the brake areas to the zero position of the door.
  • the compression spring 36 ensures that the sealing seat 8 'remains constantly depressed to the zero position of the door.
  • All previously explained embodiments have the common feature that at a defined switching point for the braking areas of the sealing body 7 always in a sealing screw located in the screw 4 and 16 8 'moves and closes a subsequent Abiaufbohrung or drainage channel to the valve 12 set faster.
  • the sealing seat position and thus the switching point of the braking areas can be made adjustable.

Landscapes

  • Closing And Opening Devices For Wings, And Checks For Wings (AREA)
  • Fluid-Damping Devices (AREA)

Abstract

L'invention concerne un dispositif de fermeture de porte comportant un boîtier, dans lequel est disposé un dispositif d'entraînement qui peut être couplé à une porte par l'intermédiaire d'un axe du dispositif de fermeture et d'une tringlerie, ainsi qu'un dispositif amortisseur hydraulique qui comporte un piston d'amortissement guidé dans un cylindre d'amortissement du boîtier et en liaison active avec le dispositif d'entraînement, le piston coopérant avec un premier conduit d'évacuation d'huile associé à un mouvement rapide de fermeture de porte et avec un deuxième conduit d'évacuation d'huile associé à un mouvement lent de fermeture de porte, le premier et le deuxième conduit d'évacuation d'huile étant disposés l'un derrière l'autre. Selon l'invention, le premier conduit d'évacuation d'huile est disposé derrière le deuxième conduit d'évacuation d'huile, vu dans la direction du mouvement du piston d'amortissement.
EP11727398.7A 2010-06-25 2011-06-14 Dispositif de fermeture de porte Withdrawn EP2585662A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102010017574.9A DE102010017574B4 (de) 2010-06-25 2010-06-25 Türschließer
PCT/EP2011/002907 WO2011160785A1 (fr) 2010-06-25 2011-06-14 Dispositif de fermeture de porte

Publications (1)

Publication Number Publication Date
EP2585662A1 true EP2585662A1 (fr) 2013-05-01

Family

ID=44562638

Family Applications (1)

Application Number Title Priority Date Filing Date
EP11727398.7A Withdrawn EP2585662A1 (fr) 2010-06-25 2011-06-14 Dispositif de fermeture de porte

Country Status (6)

Country Link
EP (1) EP2585662A1 (fr)
CN (1) CN102959168B (fr)
DE (1) DE102010017574B4 (fr)
SG (1) SG185779A1 (fr)
TW (1) TW201202538A (fr)
WO (1) WO2011160785A1 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2610478T3 (es) * 2014-04-15 2017-04-27 Geze Gmbh Accionamiento de puerta
CN104563710B (zh) * 2014-12-31 2017-01-04 黄会新 一种工作高效的闭门器
GB2580013B (en) * 2018-09-28 2023-05-17 Assa Abloy Ltd Door-closer with overload valve

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3696462A (en) * 1971-01-11 1972-10-10 Republic Industries Combined door checking and door hold open mechanism
DE8526660U1 (de) * 1985-09-18 1987-01-22 Gretsch-Unitas GmbH Baubeschläge, 7257 Ditzingen Türschließer
JP2854614B2 (ja) * 1989-07-21 1999-02-03 リョービ株式会社 ドアクローザ
GB9106245D0 (en) * 1991-03-23 1991-05-08 Newman Tonks Eng Door closer
DE19603186C2 (de) * 1996-01-30 1998-02-19 Dorma Gmbh & Co Kg Obentürschließer
DE102004041358B4 (de) * 2004-08-25 2006-07-13 Dorma Gmbh + Co. Kg Obentürschließer
CN101084361A (zh) * 2004-12-21 2007-12-05 日本发条株式会社 闭门器
FI119853B (fi) * 2006-08-21 2009-04-15 Abloy Oy Ovensuljin
GB2462114A (en) * 2008-07-25 2010-01-27 Freeman & Pardoe Ltd A cam operated door closer having piston guiding means

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
None *
See also references of WO2011160785A1 *

Also Published As

Publication number Publication date
DE102010017574A1 (de) 2011-12-29
WO2011160785A1 (fr) 2011-12-29
CN102959168A (zh) 2013-03-06
SG185779A1 (en) 2013-01-30
CN102959168B (zh) 2016-05-04
TW201202538A (en) 2012-01-16
DE102010017574B4 (de) 2019-11-28

Similar Documents

Publication Publication Date Title
EP2507460B1 (fr) Ferme-porte avec dispositif pour éviter un retour élastique
EP2456941A1 (fr) Ferme-porte
DE202008005721U1 (de) Türschließer mit einer hydraulischen Schließverzögerung
DE102011006878B4 (de) Türschließer
EP2518252A2 (fr) Ferme-porte
EP2690327B1 (fr) Distributeur hydraulique
DE102010017574B4 (de) Türschließer
DD129984B1 (de) Bremsventil hoher regelguete
DE69418171T2 (de) Ventil
DE102014222210B3 (de) Antrieb für eine Tür oder ein Fenster
EP0278333B1 (fr) Dispositif de commande pour un séparateur de tuyau
DE102011017794B4 (de) Türschließer
EP0089568B1 (fr) Dispositif d'actionnement rotatif à fluide sous pression
EP1573212B1 (fr) Electroaimant
DE3315913C2 (de) Selbsttätiger Türschließer mit hydraulischer Feststelleinrichtung
DE3320609A1 (de) Selbsttaetiger tuerschliesser mit elektro-hydraulischer feststelleinrichtung
DE19524776A1 (de) Türschließer mit hydraulischer Dämpfung
DE19524777B4 (de) Türschließer mit einstellbarer Vorspannung einer Schließerfeder
DE2737842A1 (de) Zwangsgesteuertes durchgangs-absperrventil
DE19524778B4 (de) Türschließer mit einem Verdrängerkolben
DE3109845A1 (de) Absperrventil fuer hohe druecke
EP1620626B1 (fr) Sequence de fermeture mecano-hydraulique
DE4402456C2 (de) Förderbeginnverstelleinrichtung
DE1406214C (de) Steuergerat fur einen hydraulischen Arbeitszylinder, insbesondere an einem Aufzug
DE102014222207B4 (de) Antrieb für eine Tür oder ein Fenster

Legal Events

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

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 20130125

AK Designated contracting states

Kind code of ref document: A1

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

DAX Request for extension of the european patent (deleted)
RAP1 Party data changed (applicant data changed or rights of an application transferred)

Owner name: DORMA DEUTSCHLAND GMBH

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

Free format text: STATUS: EXAMINATION IS IN PROGRESS

17Q First examination report despatched

Effective date: 20170215

RAP1 Party data changed (applicant data changed or rights of an application transferred)

Owner name: DORMAKABA DEUTSCHLAND GMBH

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

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

Free format text: STATUS: GRANT OF PATENT IS INTENDED

INTG Intention to grant announced

Effective date: 20190617

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

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

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 20191029