EP2591191B1 - Door closer or door drive - Google Patents

Door closer or door drive Download PDF

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Publication number
EP2591191B1
EP2591191B1 EP11729556.8A EP11729556A EP2591191B1 EP 2591191 B1 EP2591191 B1 EP 2591191B1 EP 11729556 A EP11729556 A EP 11729556A EP 2591191 B1 EP2591191 B1 EP 2591191B1
Authority
EP
European Patent Office
Prior art keywords
door
stepped bore
adjusting screw
cover
door closer
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
EP11729556.8A
Other languages
German (de)
French (fr)
Other versions
EP2591191A1 (en
Inventor
Alexander Hellwig
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
Dormakaba 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 Dormakaba Deutschland GmbH filed Critical Dormakaba Deutschland GmbH
Publication of EP2591191A1 publication Critical patent/EP2591191A1/en
Application granted granted Critical
Publication of EP2591191B1 publication Critical patent/EP2591191B1/en
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
    • 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
    • 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
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES E05D AND E05F, RELATING TO CONSTRUCTION ELEMENTS, ELECTRIC CONTROL, POWER SUPPLY, POWER SIGNAL OR TRANSMISSION, USER INTERFACES, MOUNTING OR COUPLING, DETAILS, ACCESSORIES, AUXILIARY OPERATIONS NOT OTHERWISE PROVIDED FOR, APPLICATION THEREOF
    • E05Y2201/00—Constructional elements; Accessories therefor
    • E05Y2201/40—Motors; Magnets; Springs; Weights; Accessories therefor
    • E05Y2201/499—Spring tensioners; Tension sensors
    • 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 present invention relates to a door closer or door drive with a housing which is closed at its one end by a lid, with a spring mounted in the housing and a spring tensioning device for the spring.
  • a door closer or door drive usually has in its housing mounting holes for the passage of mounting screws. These mounting holes are due to the narrow gauge in the edge region of the housing. Thus remains in this area little room for the arrangement of a spring tensioning device.
  • a door closer or door drive with a housing which is closed at one end by a lid, with a spring mounted in the housing and a spring tensioning device for the spring invention according to the fact that the spring tensioning device comprises a control nut, which on a Adjusting screw is rotatably mounted, that the adjusting screw is supported in a stepped bore of the lid and is accessible through the lid from the outside.
  • the larger diameter of the stepped bore is disposed on the inboard side of the lid and the smaller diameter of the stepped bore on the outboard side of the lid.
  • the larger diameter of the stepped bore goes over an inclined shoulder in the smaller diameter of the stepped bore and the screw is supported with her head on this shoulder.
  • the screw is securely held in the lid and can be supported on this. In addition, falling out of the screw is prevented.
  • the screw on an externally accessible polygon for engagement with an adjusting tool can be advantageously designed as a hexagon. Due to this measure, an adjustment of the spring preload can be made easily and quickly from the outside.
  • the screw according to an advantageous development of a support shoulder, with which the adjusting screw is additionally supported on an inner side of the lid.
  • the adjusting screw is provided at its engaging in the stepped bore portion with a circumferential groove in which a sealing ring is arranged. As a result, a liquid-tight seal can be achieved.
  • FIG. 1 an inventive door closer or door drive is shown.
  • the door closer or door drive has a housing 1, which can be fastened via fastening screws 2 to a door, a door frame or the like.
  • a spring 3 which is supported with its one end to an adjusting nut 4.
  • the adjusting nut 4 is rotatably mounted on a set screw 5.
  • the adjusting screw 5 is seated with its head in a stepped bore, which is arranged in a housing 6 at its one end final cover 6.
  • the stepped bore has a larger diameter portion and a smaller diameter portion, with the larger diameter portion directed inward toward the spring 3 and the smaller diameter portion facing outward.
  • the larger diameter of the stepped bore goes over a sloping shoulder 7 in the smaller diameter.
  • the screw 5 is supported with her head.
  • a polygon 8 In the head of the screw 5 is a polygon 8, preferably a hex incorporated, in which an adjusting tool can be inserted from the outside through the lid 6.
  • the adjusting screw 5 has a support shoulder 9, with which it is supported on an inner side of the lid 6.
  • the adjusting screw 5 is supported on the one hand with its head on the shoulder 7 of the stepped bore and on the other hand with the support shoulder 9 on the inside of the lid 6.
  • the adjusting screw 5 At its engaging in the stepped bore section the adjusting screw 5 is provided with a circumferential groove 10 in which a sealing ring is arranged.

Landscapes

  • Closing And Opening Devices For Wings, And Checks For Wings (AREA)
  • Power-Operated Mechanisms For Wings (AREA)
  • Casings For Electric Apparatus (AREA)

Description

Die vorliegende Erfindung betrifft einen Türschließer oder Türantrieb mit einem Gehäuse, welches an seinem einen Ende von einem Deckel verschlossen ist, mit einer in dem Gehäuse gelagerten Feder und einer Federspannvorrichtung für die Feder.The present invention relates to a door closer or door drive with a housing which is closed at its one end by a lid, with a spring mounted in the housing and a spring tensioning device for the spring.

Ein Türschließer oder Türantrieb weist üblicherweise in seinem Gehäuse Befestigungsbohrungen zum Durchtritt von Befestigungsschrauben auf. Diese Befestigungsbohrungen befinden sich aufgrund des schmalen Stichmaßes im Randbereich des Gehäuses. Somit verbleibt in diesem Bereich wenig Raum für die Anordnung einer Federspannvorrichtung.A door closer or door drive usually has in its housing mounting holes for the passage of mounting screws. These mounting holes are due to the narrow gauge in the edge region of the housing. Thus remains in this area little room for the arrangement of a spring tensioning device.

Beispiele für derartige Türschließer oder Türantriebe sind in DE 27 55 787 A1 oder US 5,913,763 offenbart. GB 2 462 633 offenbart alle Merkmale des Oberbegriffs des Anspruchs 1.Examples of such door closers or door drives are in DE 27 55 787 A1 or US 5,913,763 disclosed. GB 2 462 633 discloses all features of the preamble of claim 1.

Es ist daher Aufgabe der vorliegenden Erfindung, einen Türschließer oder Türantrieb vorzuschlagen, bei dem trotz des schmalen Lochbildes noch eine brauchbare Federspannvorrichtung verwirklicht werden kann.It is therefore an object of the present invention to provide a door closer or door drive, in which despite the narrow hole pattern still a useful spring tensioning device can be realized.

Diese Aufgabe wird bei einem Türschließer oder Türantrieb mit einem Gehäuse, welches an seinem einen Ende von einem Deckel verschlossen ist, mit einer in dem Gehäuse gelagerten Feder und einer Federspannvorrichtung für die Feder erfindungemäß dadurch gelöst, dass die Federspannvorrichtung eine Stellmutter umfasst, welche auf einer Stellschraube drehbar gelagert ist, dass sich die Stellschraube in einer Stufenbohrung des Deckels abstützt und durch den Deckel von außen zugänglich ist.This object is achieved by a door closer or door drive with a housing which is closed at one end by a lid, with a spring mounted in the housing and a spring tensioning device for the spring invention according to the fact that the spring tensioning device comprises a control nut, which on a Adjusting screw is rotatably mounted, that the adjusting screw is supported in a stepped bore of the lid and is accessible through the lid from the outside.

Infolge dieser Ausgestaltung wird der Angriffspunkt für die Stellschraube ins Innere des Gehäuses verlegt, so dass trotz des schmalen Lochbildes der Befestigungsschrauben noch eine brauchbare Verstellmöglichkeit für die Feder realisiert werden kann.As a result of this configuration, the point of application for the screw is moved into the interior of the housing, so that despite the narrow hole pattern of the mounting screws still a useful adjustment for the spring can be realized.

Die Unteransprüche beinhalten vorteilhafte Weiterbildungen und Ausgestaltungen der Erfindung.The dependent claims contain advantageous developments and refinements of the invention.

Der größere Durchmesser der Stufenbohrung ist an der nach innen gerichteten Seite des Deckels und der kleinere Durchmesser der Stufenbohrung an der nach außen gerichteten Seite des Deckels angeordnet.The larger diameter of the stepped bore is disposed on the inboard side of the lid and the smaller diameter of the stepped bore on the outboard side of the lid.

Gemäß einer bevorzugten Weiterbildung geht der größere Durchmesser der Stufenbohrung über eine schräg verlaufende Schulter in den kleineren Durchmesser der Stufenbohrung über und die Stellschraube stützt sich mit ihrem Kopf an dieser Schulter ab. Somit ist die Stellschraube sicher in dem Deckel gehalten und kann sich an diesem abstützen. Außerdem wird ein Herausfallen der Stellschraube verhindert.According to a preferred embodiment, the larger diameter of the stepped bore goes over an inclined shoulder in the smaller diameter of the stepped bore and the screw is supported with her head on this shoulder. Thus, the screw is securely held in the lid and can be supported on this. In addition, falling out of the screw is prevented.

Um die Vorspannung der Feder einstellen zu können weist nach einer vorteilhaften Ausgestaltung die Stellschraube einen von außen zugänglichen Mehrkant zum Eingriff für ein Verstellwerkzeug auf. Der Mehrkant kann vorteilhafterweise als Sechskant ausgebildet sein. Aufgrund dieser Maßnahme kann eine Einstellung der Federvorspannung von außen leicht und schnell vorgenommen werden.In order to adjust the bias of the spring, according to an advantageous embodiment, the screw on an externally accessible polygon for engagement with an adjusting tool. The polygon can be advantageously designed as a hexagon. Due to this measure, an adjustment of the spring preload can be made easily and quickly from the outside.

Um eine noch sichere Abstützung der Stellschraube an dem Deckel zu gewährleisten, weist die Stellschraube nach einer vorteilhaften Weiterbildung eine Stützschulter auf, mit welcher sich die Stellschraube zusätzlich noch an einer Innenseite des Deckels abstützt.In order to ensure even more secure support of the screw on the lid, the screw according to an advantageous development of a support shoulder, with which the adjusting screw is additionally supported on an inner side of the lid.

Nach einer vorteilhaften Ausgestaltung ist die Stellschraube an ihrem in die Stufenbohrung eingreifenden Abschnitt mit einer Umfangsnut versehen, in welcher ein Dichtungsring angeordnet ist. Hierdurch kann eine flüssigkeitsdichte Abdichtung erreicht werden.According to an advantageous embodiment, the adjusting screw is provided at its engaging in the stepped bore portion with a circumferential groove in which a sealing ring is arranged. As a result, a liquid-tight seal can be achieved.

Weitere Einzelheiten, Merkmale und Vorteile der Erfindung ergeben sich aus der nachfolgenden Beschreibung anhand der Zeichnungen. Es zeigen:

Figur 1
eine Ansicht eines erfindungsgemäßen Türschließers bzw. Türantriebes, und
Figur 2
einen Schnitt durch den erfindungsgemäßen Türschließer bzw. Türantrieb nach Figur 1.
Further details, features and advantages of the invention will become apparent from the following description with reference to the drawings. Show it:
FIG. 1
a view of a door closer according to the invention or door drive, and
FIG. 2
a section through the door closer or door drive according to the invention FIG. 1 ,

In Figur 1 ist ein erfindungsgemäßer Türschließer bzw. Türantrieb dargestellt. Der Türschließer bzw. Türantrieb weist ein Gehäuse 1 auf, das über Befestigungsschrauben 2 an einer Tür, einem Türrahmen o. dgl. befestigt werden kann.In FIG. 1 an inventive door closer or door drive is shown. The door closer or door drive has a housing 1, which can be fastened via fastening screws 2 to a door, a door frame or the like.

In dem Gehäuse 1 des Türschließers bzw. Türantriebes befindet sich u. a. eine Feder 3, die sich mit ihrem einen Ende an einer Stellmutter 4 abstützt. Die Stellmutter 4 ist drehbar auf einer Stellschraube 5 gelagert. Die Stellschraube 5 sitzt mit ihrem Kopf in einer Stufenbohrung, die in einem das Gehäuse 1 an seinem einen Ende abschließenden Deckel 6 angeordnet ist.In the housing 1 of the door closer or door drive is u. a. a spring 3, which is supported with its one end to an adjusting nut 4. The adjusting nut 4 is rotatably mounted on a set screw 5. The adjusting screw 5 is seated with its head in a stepped bore, which is arranged in a housing 6 at its one end final cover 6.

Die Stufenbohrung hat einen Bereich mit einem größeren Durchmesser und einen Bereich mit einem kleineren Durchmesser, wobei der Bereich mit dem größeren Durchmesser nach innen zu der Feder 3 gerichtet ist und der Bereich mit dem kleineren Durchmesser nach außen weist.The stepped bore has a larger diameter portion and a smaller diameter portion, with the larger diameter portion directed inward toward the spring 3 and the smaller diameter portion facing outward.

Der größere Durchmesser der Stufenbohrung geht über eine schräg verlaufende Schulter 7 in den kleineren Durchmesser über. An dieser schrägen Schulter 7 stützt sich die Stellschraube 5 mit ihrem Kopf ab.The larger diameter of the stepped bore goes over a sloping shoulder 7 in the smaller diameter. At this oblique shoulder 7, the screw 5 is supported with her head.

In den Kopf der Stellschraube 5 ist ein Mehrkant 8, vorzugsweise ein Sechskant eingearbeitet, in welchen ein Verstellwerkzeug von außen durch den Deckel 6 eingesteckt werden kann.In the head of the screw 5 is a polygon 8, preferably a hex incorporated, in which an adjusting tool can be inserted from the outside through the lid 6.

Des Weiteren weist die Stellschraube 5 eine Stützschulter 9 aufweist, mit welcher sie sich an einer Innenseite des Deckels 6 abstützt. Somit stützt sich die Stellschraube 5 einerseits mit ihrem Kopf an der Schulter 7 der Stufenbohrung und andererseits mit der Stützschulter 9 an der Innenseite des Deckels 6 ab.Furthermore, the adjusting screw 5 has a support shoulder 9, with which it is supported on an inner side of the lid 6. Thus, the adjusting screw 5 is supported on the one hand with its head on the shoulder 7 of the stepped bore and on the other hand with the support shoulder 9 on the inside of the lid 6.

An ihrem in die Stufenbohrung eingreifenden Abschnitt ist die Stellschraube 5 mit einer Umfangsnut 10 versehen ist, in welcher ein Dichtungsring angeordnet ist.At its engaging in the stepped bore section the adjusting screw 5 is provided with a circumferential groove 10 in which a sealing ring is arranged.

Infolge der erfindungsgemäßen Ausgestaltung kann von außen durch den Deckel 5 ein Verstellwerkzeug in den Mehrkant 8 der Stellschraube 5 eingesteckt und die Vorspannung der Feder 3 verändert werden.As a result of the embodiment according to the invention can be inserted from the outside through the lid 5, an adjusting tool in the polygonal 8 of the screw 5 and the bias of the spring 3 can be changed.

Die vorhergehende Beschreibung der vorliegenden Erfindung dient nur zu illustrativen Zwecken und nicht zum Zwecke der Beschränkung der Erfindung. Im Rahmen der Erfindung sind entsprechend den angehängten Ansprüchen verschiedene Änderungen und Modifikationen möglich, ohne den Umfang der Erfindung sowie ihrer Äquivalente zu verlassen.The foregoing description of the present invention is for illustrative purposes only, and not for the purpose of limiting the invention. Within the scope of the invention, various changes and modifications are possible in accordance with the appended claims without departing from the scope of the invention and the equivalents thereof.

BezugszeichenlisteLIST OF REFERENCE NUMBERS

11
Gehäusecasing
22
Befestigungsschraubenmounting screws
33
Federfeather
44
Stellmutteradjusting nut
55
Stellschraubescrew
66
Deckelcover
77
Schultershoulder
88th
Mehrkantpolygon
99
Schützschulterprotective shoulder
1010
Umfangsnutcircumferential groove

Claims (5)

  1. A door closer or a door operator with a housing (1), which at its one end is closed off by a cover (6), with a spring (3) being supported in the housing, and with a spring tensioning device for the spring, wherein the spring tensioning device comprises an adjusting nut (4), which is rotatably supported on an adjusting screw (5), such that the adjusting screw (5) bears against a stepped bore of the cover (6) and is accessible from the outside through the cover (6), wherein the larger diameter of the stepped bore is disposed at the side of the cover (6) oriented towards the inside, and the smaller diameter of the stepped bore is disposed at the side of the cover (6) oriented towards the outside, characterized in that the adjusting screw (5) does not protrude into the portion of the stepped bore with the smaller diameter, and in that the smaller diameter of the stepped bore protrudes into a central area of the cover (6) tapering in radial direction, and being disposed between two attachment screws (2) of the door closer or of the door operator, in the longitudinal housing direction of the cover (6).
  2. The door closer or door operator according to claim 1, characterized in that the larger diameter of the stepped bore merges into the smaller diameter of the stepped bore via a transverse extending shoulder (7), and in that the adjusting screw (5) with its head bears against said shoulder (7).
  3. The door closer or door operator according to claim 1, characterized in that the adjusting screw (5) has a polygonal socket (8), which is accessible from the outside, for the engagement of an adjusting tool.
  4. The door closer or door operator according to claim 1, characterized in that the adjusting screw (5) has a supporting shoulder (9), by means of which the adjusting screw (5) bears against an inside of the cover (6).
  5. The door closer or door operator according to claim 1, characterized in that the adjusting screw (5), at its portion, which engages into the stepped bore, is provided with a surrounding groove (10), in which a sealing ring is disposed.
EP11729556.8A 2010-07-07 2011-06-17 Door closer or door drive Active EP2591191B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102010017787A DE102010017787A1 (en) 2010-07-07 2010-07-07 Door closer or door drive
PCT/EP2011/003007 WO2012003926A1 (en) 2010-07-07 2011-06-17 Door closer or door drive

Publications (2)

Publication Number Publication Date
EP2591191A1 EP2591191A1 (en) 2013-05-15
EP2591191B1 true EP2591191B1 (en) 2017-01-25

Family

ID=44532720

Family Applications (1)

Application Number Title Priority Date Filing Date
EP11729556.8A Active EP2591191B1 (en) 2010-07-07 2011-06-17 Door closer or door drive

Country Status (7)

Country Link
EP (1) EP2591191B1 (en)
CN (1) CN102971476B (en)
DE (1) DE102010017787A1 (en)
ES (1) ES2617953T3 (en)
SG (1) SG185702A1 (en)
TW (1) TW201207216A (en)
WO (1) WO2012003926A1 (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102013112381A1 (en) * 2013-11-11 2015-05-13 Dorma Deutschland Gmbh Spring adjustment for a door operating device
DK3099877T3 (en) * 2014-01-27 2020-04-06 In & Tec Srl Hydraulic hinge with low space requirements
EP2924216B1 (en) 2014-03-24 2017-05-03 Gretsch-Unitas GmbH Baubeschläge Door closer
CN104328967A (en) * 2014-10-14 2015-02-04 茵科门控（珠海保税区）有限公司 Cam shaft door closer
CN116352141B (en) * 2023-06-02 2023-08-08 贵州迈锐钻探设备制造有限公司 Special rebound device for water hole drilling device

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5913763A (en) * 1993-07-19 1999-06-22 Dorma Door Controls, Inc. Method for controlling the operational modes of a door in conjunction with a mechanical door control mechanism

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Publication number Priority date Publication date Assignee Title
DE2755787A1 (en) * 1977-12-14 1979-06-21 Gartner & Co J Universal automatic door closer - has closing spring and attenuating device in tandem in housing, with overlapping slide
DE4038720C2 (en) * 1990-12-05 1995-05-18 Dorma Gmbh & Co Kg Upper door closer with slide rail linkage
DE19524777B4 (en) * 1995-07-07 2004-04-15 Geze Gmbh Door closer with adjustable preload of a closer spring
IT251019Y1 (en) * 2000-03-13 2003-11-04 Fev Italia Archal S R L AIR DOOR CLOSER PROVIDED WITH PERFECT ROTATION VEHICLES.
US20080034535A1 (en) * 2006-07-20 2008-02-14 Chi-Tsao Chiang Door closer
CN101135219B (en) * 2006-09-01 2012-11-14 多玛两合有限公司 Door closer
CN201144586Y (en) * 2007-11-13 2008-11-05 柯志宏 Adjustable automatic hinge
GB2462633B (en) * 2008-08-14 2013-01-02 Jebron Ltd Door closer

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5913763A (en) * 1993-07-19 1999-06-22 Dorma Door Controls, Inc. Method for controlling the operational modes of a door in conjunction with a mechanical door control mechanism

Also Published As

Publication number Publication date
ES2617953T3 (en) 2017-06-20
EP2591191A1 (en) 2013-05-15
SG185702A1 (en) 2012-12-28
TW201207216A (en) 2012-02-16
DE102010017787A1 (en) 2012-01-12
WO2012003926A1 (en) 2012-01-12
CN102971476A (en) 2013-03-13
CN102971476B (en) 2016-04-13

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