EP3059364B1 - Closing device for a door leaf - Google Patents

Closing device for a door leaf Download PDF

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Publication number
EP3059364B1
EP3059364B1 EP15155713.9A EP15155713A EP3059364B1 EP 3059364 B1 EP3059364 B1 EP 3059364B1 EP 15155713 A EP15155713 A EP 15155713A EP 3059364 B1 EP3059364 B1 EP 3059364B1
Authority
EP
European Patent Office
Prior art keywords
arm
guide element
side guide
stop
movement
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
EP15155713.9A
Other languages
German (de)
French (fr)
Other versions
EP3059364A1 (en
Inventor
Lothar Singer
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.)
Gretsch Unitas GmbH Baubeschlaege
Original Assignee
Gretsch Unitas GmbH Baubeschlaege
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 Gretsch Unitas GmbH Baubeschlaege filed Critical Gretsch Unitas GmbH Baubeschlaege
Priority to EP15155713.9A priority Critical patent/EP3059364B1/en
Publication of EP3059364A1 publication Critical patent/EP3059364A1/en
Application granted granted Critical
Publication of EP3059364B1 publication Critical patent/EP3059364B1/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
    • E05F3/22—Additional arrangements for closers, e.g. for holding the wing in opened or other position
    • E05F3/221—Mechanical power-locks, e.g. for holding the wing open or for free-moving zones
    • E05F3/222—Mechanical power-locks, e.g. for holding the wing open or for free-moving zones electrically operated
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05C—BOLTS OR FASTENING DEVICES FOR WINGS, SPECIALLY FOR DOORS OR WINDOWS
    • E05C17/00—Devices for holding wings open; Devices for limiting opening of wings or for holding wings open by a movable member extending between frame and wing; Braking devices, stops or buffers, combined therewith
    • E05C17/02—Devices for holding wings open; Devices for limiting opening of wings or for holding wings open by a movable member extending between frame and wing; Braking devices, stops or buffers, combined therewith by mechanical means
    • E05C17/04—Devices for holding wings open; Devices for limiting opening of wings or for holding wings open by a movable member extending between frame and wing; Braking devices, stops or buffers, combined therewith by mechanical means with a movable bar or equivalent member extending between frame and wing
    • E05C17/12—Devices for holding wings open; Devices for limiting opening of wings or for holding wings open by a movable member extending between frame and wing; Braking devices, stops or buffers, combined therewith by mechanical means with a movable bar or equivalent member extending between frame and wing consisting of a single rod
    • E05C17/24—Devices for holding wings open; Devices for limiting opening of wings or for holding wings open by a movable member extending between frame and wing; Braking devices, stops or buffers, combined therewith by mechanical means with a movable bar or equivalent member extending between frame and wing consisting of a single rod pivoted at one end, and with the other end running along a guide member
    • E05C17/28—Devices for holding wings open; Devices for limiting opening of wings or for holding wings open by a movable member extending between frame and wing; Braking devices, stops or buffers, combined therewith by mechanical means with a movable bar or equivalent member extending between frame and wing consisting of a single rod pivoted at one end, and with the other end running along a guide member with braking, clamping or securing means at the connection to the guide member
    • 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
    • E05F3/22—Additional arrangements for closers, e.g. for holding the wing in opened or other position
    • E05F2003/228—Arrangements where the end of the closer arm is sliding in a track
    • 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
    • E05Y2201/46—Magnets
    • E05Y2201/462—Electromagnets
    • 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
    • E05Y2600/00—Mounting or coupling arrangements for elements provided for in this subclass
    • E05Y2600/10—Adjustable
    • E05Y2600/30—Adjustment motion
    • E05Y2600/32—Rotary motion
    • E05Y2600/322—Rotary motion around a horizontal axis
    • 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
    • E05Y2800/00—Details, accessories and auxiliary operations not otherwise provided for
    • E05Y2800/26—Form or shape
    • E05Y2800/264—Form or shape compact
    • 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

  • Such a locking device is known from DE 41 40 658 A1 .
  • the document discloses a locking device for a door leaf provided with a door closer.
  • the locking device comprises an electromechanical locking device which is mounted inside a slide rail.
  • the electromechanical locking device is used on an actuating arm the door closer attached and longitudinally movably guided on the slide rail to lock with the door leaf open.
  • a two-armed pivot lever of the electromechanical locking device is pivotably mounted on the slide rail.
  • a lever arm of the pivot lever has an anchor plate at its free end.
  • the armature plate on the pivot lever is assigned a switchable electromagnet as a holding device, which in turn is mounted on the slide rail.
  • a latching lever pivotably mounted on the pivot lever extends along the second lever arm of the pivot lever.
  • the pivot lever If the pivot lever is fixed to the electromagnet via the armature plate and the electromechanical locking device is thus switched to the locked state, the pivot lever assumes a pivot position in which a stop provided on the locking lever and designed as a locking cam is moved into a locking position.
  • the locking cam In the locked position, the locking cam protrudes into the path of movement of the slide attached to the actuating arm of the door closer, and when the door leaf is open, the locking cam moved into the locked position blocks the sliding piece and the door leaf connected to it against a movement in the closing direction.
  • the swivel lever moves into a swivel position in which the locking cam of the locking lever assumes a release position and consequently a closing movement of the slider and the with it motion-related door leaf allows.
  • the object of the present invention is to provide a compactly constructed locking device.
  • the switchable holding device by means of which the stop for the arm-side guide element provided on the closer arm can be fixed in a locking position, is integrated into a swivel unit together with the stop for the arm-side guide element.
  • the swivel unit consequently forms a compact component of the locking device according to the invention that combines several functions.
  • the pivot unit with the stop for the arm-side guide element and the holding device provided for this stop is designed in the manner of a one-armed lever and has only a small structural dimension in the longitudinal direction of the guide.
  • an activatable and deactivatable holding magnet in particular a switchable electromagnet, is provided as the holding device of the stop for the arm-side guide element.
  • Holding magnets of the type according to the invention are functionally reliable devices which are able to apply the holding forces required for the detachable fixation of the stop for the arm-side guide element.
  • the locking device can be designed as an electromechanical locking device.
  • the stop for the arm-side guide element is movably guided on the pivot unit in a further preferred embodiment of the invention.
  • it is consequently not necessary to move the entire pivot unit, but rather only the stop for the arm-side guide element.
  • a pivoting movement of the stop is in the case of the invention preferred for the arm-side guide element about a stop pivot axis.
  • Such a pivoting movement has little friction and is consequently carried out in a functionally reliable manner. Since this also applies to the movement of the stop from the locking position into the release position, the locking device of the locking device according to the invention is triggered in particular reliably.
  • the locking device can be triggered due to a regular switching process on the holding device for the stop or irregularly, for example due to an overload acting on the open door leaf.
  • the pivoting mobility of the stop for the arm-side guide element is realized in the case of a further preferred embodiment of the invention in that the stop for the arm-side guide element is formed by a lever which can pivot about a lever pivot axis forming the stop pivot axis (claim 5).
  • a pivot lever of the type according to the invention is a structurally simple and inexpensive component which is nevertheless characterized by high functional reliability and which offers the possibility of influencing the force relationships in a simple manner by selecting the lever ratios. If the pivot lever is aligned accordingly, approximately transversely to the axis of the movements carried out by the arm-side guide element along the guide, the pivot lever can be accommodated in a space-saving manner in the longitudinal direction of the guide.
  • the lever forming the stop for the arm-side guide element is preferably designed as a two-armed lever with a stop arm and a holding arm (claim 6).
  • a stop for the arm-side guide element the stop arm of the two-armed lever is used, which can be pivoted with a pivoting movement about the lever pivot axis from the locking position into the release position and / or in the opposite direction.
  • the holding arm serves to releasably fix the stop arm pivoted into the blocking position in the blocking position by means of the switchable holding device.
  • a force step-up or step-down can be implemented in a simple manner, due to which it is ensured in particular that the holding force available on the switchable holding device is sufficient to reach the stop for the arm-side Guide element to be fixed securely in the locked position. If the holding arm has a corresponding excess length compared to the stop arm, then even relatively inefficient and consequently small holding magnets are sufficient to generate the required holding force.
  • the stop for the arm-side guide element moves automatically from the release position back into the blocking position after the locking device has been triggered.
  • the swivel unit with the stop for the arm-side guide element and the holding device provided for the stop automatically swivels back into the starting position after being deflected by the arm-side guide element moving in the opening direction. If the stop for the arm-side guide element is fixed by means of the switchable holding device, the stop for the arm-side guide element, after the automatic return pivoting movement of the pivoting unit, assumes the locking position in which it closes the arm-side guide element and the movement-related door panel when the door is open hinders.
  • the stop for the arm-side guide element is moved by the arm-side guide element from the locking position into the release position when the holding device is in the released state (claim 9).
  • a separate device for moving the stop is consequently not required. If the stop for the arm-side guide element is formed by a pivotable lever, the arm-side guide element acted upon by the door closer in the closing direction can pivot the lever and thus the stop for the arm-side guide element from the locking position into the release position.
  • the stop for the arm-side guide element is provided by the arm-side guide element moving in the closing direction deflected in the transverse direction of the closing movement from the path of movement of the arm-side guide element.
  • Claim 10 relates to an inventive design in which the amount of force that has to be exerted on the stop for the arm-side guide element in the blocking position to trigger the locking device can be adjusted.
  • the stop for the arm-side guide element is formed by a lever pivotable about a lever pivot axis. If the locking device is effective, the lever is pivoted into the locking position and fixed there by means of the holding device. The door closer strives to move the arm-side guide element with a closing movement along the guide provided for the arm-side guide element. This results in a force being applied to the lever that forms the stop for the arm-side guide element by the arm-side guide element.
  • the amount of force that must be introduced into the lever by the arm-side guide element in order to pivot the lever provided as a stop for the arm-side guide element from the locking position into the release position depends on the length of the lever arm with which the lever is inserted applied force on the lever. If the lever arm is relatively long, for example, a relatively small force is sufficient to transfer the locking device from the locked state to the released state and thereby release it. According to claim 10, there is in particular the possibility of providing an overload protection device for the locking device according to the invention, which ensures that the exertion of irregularly large forces on the door leaf leads to the locking device being triggered and thereby avoiding damage to the locking device that would otherwise be feared.
  • FIG. 1 to 4 comprises a locking device 1 for a door leaf, not shown, a slide rail 2, which serves as a guide for a sliding piece 3, which in turn at one end of an in Figure 1 only indicated closer arm 4 is provided and forms an arm-side guide element.
  • the closer arm 4 is at the end remote from the slider 3 to a closer shaft of an in Figure 1 likewise only indicated door closer 5 connected.
  • the door closer 5 is mounted on the door leaf, not shown, and the slide rail 2 is mounted on the fixed door frame.
  • An opening movement of the door leaf is converted into an opening movement of the slide 3 via the closer arm 4.
  • the slide 3 moves along the slide 2 in the direction of the arrow 6. If the door leaf is closed by the door closer 5 starting from an open position, the slide 3 is moved by means of the closer arm 4 with a closing movement in the direction of the arrow 7 along the slide 2.
  • a locking device 8 accommodated in the interior of the slide rail 2 is used to lock the open door leaf at a predetermined door opening angle.
  • the locking device 8 is fixed immovably on the slide rail 2 in the longitudinal direction of the slide rail 2 by means of a locking bracket 9, which is also arranged in the interior of the slide rail 2.
  • the locking bracket 9 is penetrating Clamping screw 10 is provided, which braces the locking bracket 9 against the inner wall of the slide rail 2.
  • a pivot unit 11 of the locking device 8 is articulated to the locking bracket 9 by a base body 12 and is pivotable about a pivot axis 13 in the direction of a double arrow 14.
  • Counterclockwise pivoting movements are carried out by the pivoting unit 11 against the action of a restoring force which is generated by a first restoring spring 15 pretensioned between the base body 12 of the pivoting unit 11 and the locking bracket 9.
  • a switchable electromagnet 16 is screwed to the base body 12 of the swivel unit 11, which via electrical lines 17 ( Figure 4 ) is connected to a voltage source.
  • the electromagnet 16 serves as a switchable holding device for a two-armed lever 18, which in turn is mounted on the base body 12 of the pivot unit 11 such that it can pivot about a lever pivot axis 19.
  • the two-armed lever 18 On the side facing the electromagnet 16, the two-armed lever 18 is provided with an anchor plate 20.
  • the anchor plate 20 is screwed to a holding arm 21 of the two-armed lever 18.
  • a lever arm of the two-armed lever 18 provided on the opposite side of the lever pivot axis 19 forms a stop arm 22 which serves as a stop for the slider 3.
  • the stop arm 22 of the two-armed lever 18 is dimensioned such that it can dip into a guide slot 23 which is provided on the slide rail 2 for the slide 3 and on the longitudinal edges of which the slide 3 is guided during movements in the directions of arrows 6, 7.
  • a second return spring 24 penetrates a passage opening of the two-armed lever 18 and is supported on the one hand on the anchor plate 20 screwed to the two-armed lever 18 and on the other hand on an extension 25 of the base body 12 of the swivel unit 11.
  • the extension 25 is connected to a first stop buffer 26 assigned to the two-armed lever 18 and to one of the slide rails 2 assigned second stop buffer 27 ( Figure 2 ).
  • the extension 25 of the base body 12 has a bore provided with an internal thread into which an adjusting screw 28 is screwed.
  • the adjusting screw 28 forms an adjusting device and is mounted with a screw head 29 on the upper side of the longitudinal edges of the guide slot 23 provided on the slide rail 2.
  • Figure 1 shows the locking device 1 during an opening movement of the door leaf provided with the door closer 5 at a point in time immediately before the sliding piece 3, moving in the direction of arrow 6 along the slide rail 2 due to the opening movement of the door leaf, reaches the pivot unit 11.
  • the pivot unit 11 is inclined to the horizontal under the action of gravity and under the action of the pretensioned first return spring 15 and engages with the lower part of the base body 12 and with the stop arm 22 of the two-armed lever 18 in the guide slot 23 of the slide rail 2.
  • the pivot unit 11 On a part which is widened in relation to the part of the base body 12 engaging in the guide slot 23, the pivot unit 11 is supported from above on the longitudinal edges of the guide slot 23 of the slide rails 2. Due to its inclination, the swivel unit 11 forms a run-up slope 30 on its underside.
  • the two-armed lever 18, specifically its stop arm 22, protrudes into the movement path of the opening movement of the slider 3.
  • the slider 3 runs with its leading end in the direction of arrow 6 on the run-up slope 30 on the underside of the swivel unit 11, the swivel unit 11 including the two-armed lever 18 and the stop arm 22 with a swivel movement about the swivel axis 13 is deflected from the movement path of the opening movement of the slide 3 in the counterclockwise direction against the action of gravity and the restoring force exerted by the first return spring 15 and the stop arm 22 of the two-armed lever 18 is passed by the slide 3 in the direction of arrow 6.
  • the swivel unit 11 executes a swiveling movement in a clockwise direction under the action of gravity and the restoring force exerted by the previously compressed first restoring spring 15. Due to the return pivoting movement of the pivoting unit 11, it returns to the pivoting position according to FIG Figure 1 .
  • the locking device is switched to the locked state, the stop arm 22 is accordingly in the locked position in which it is releasably fixed by the electromagnet 16 acting on the holding arm 22 of the two-armed lever 18.
  • the electromagnet 16 Due to the lever ratios on the two-armed lever arm 18, the electromagnet 16 only has to apply a relatively small holding force so that the stop arm 22 of the two-armed lever 18 permanently blocks the slider 3 in the direction of the arrow 7.
  • the slide 3 acts on the in Figure 2 illustrated functional state of the locking device 8 although a relatively large force exerted by the door closer 5 via the closer arm 4 in the direction of the arrow 7; however, the line of action of this force runs only a short distance from the lever pivot axis 19 and consequently has only an extremely short lever arm.
  • the length of the lever arm of the holding force exerted by the electromagnet 16 on the holding arm 21 of the two-armed lever 18 is several times greater.
  • the slide 3 pulled by the door closer 5 in the arrow direction 7 can consequently move the swivel unit 11 including the two-armed lever 18 out of the swivel position according to FIG Figure 3 Pivot counterclockwise about the pivot axis 13 and thereby the stop arm 22 of the two-armed lever 18 against the action of a restoring force exerted by the first restoring spring 15 from the movement path of the closing movement of the slider 3 in Figure 3 deflect upwards.
  • the slider 3 can now execute a closing movement in the direction of the arrow 7.
  • the closing movement of the slide 3 is accompanied by a closing movement of the door leaf, which is movement-connected to the slide 3.
  • the adjusting screw 28 offers the possibility of protecting the locking device 8 from damage caused by overload.
  • the swivel position which the swivel unit 11 in the case of FIG Figure 2 illustrated locking state of the locking device 8 assumes, can be varied.
  • the adjusting screw 28 is based on the relationships according to Figure 2
  • the pivot unit 11 is adjusted with a pivoting movement in the counterclockwise direction.
  • the distance between the line of action of the force exerted by the slider 3 in the direction of arrow 7 on the stop arm 22 of the two-armed lever 18 from the lever pivot axis 19 increases 3 force exerted.
  • This release force can be adjusted in terms of its amount by actuating the adjusting screw 28 in such a way that, in particular in the case of irregular conditions, for example when irregularly large forces are applied to the one provided with the door closer 5 Door leaf, the two-armed lever 18 releases from the activated electromagnet 16 before the locking device 1 is damaged due to the effective irregular forces.
  • FIG. 5 shows a locking device 51, which compared to the locking device 1 according to FIGS Figures 1 to 4 is structurally simplified, which, however, corresponds to the locking device 1 in terms of its basic structure and its basic mode of operation.
  • a locking device 58 of the locking device 51 has a swivel unit 61 with a base body 62 which, unlike the base body 12 of the swivel unit 11 according to FIGS Figures 1 to 4 has no extension provided with an adjusting device.
  • a sliding piece 53 of the locking device 51 serving as an arm-side guide element is different from the sliding piece 3 according to FIGS Figures 1 to 4 provided with a run-up bevel 65 on its side which leads in the direction of arrow 6 during opening movements.
  • the run-up slope 65 causes the pivot unit 61 to be deflected with a counterclockwise movement about a pivot axis 63.
  • the locking device 58 according to FIG Figure 5 a switchable electromagnet 16 which, in the activated state, fixes a two-armed lever 18 on a holding arm 21 and thereby releasably secures a stop arm 22 of the two-armed lever 18 in a blocking position.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Lock And Its Accessories (AREA)

Description

Die Erfindung betrifft eine Schließvorrichtung für einen mit einer Öffnungsbewegung öffenbaren und mit einer Schließbewegung schließbaren Türflügel,

  • • mit einem Türschließer, mittels dessen der Türflügel zur Ausführung der Schließbewegung antreibbar ist und der eine Schließerwelle aufweist,
  • • mit einem Schließerarm, der zwischen dem Türflügel und einem festen Türrahmen anordenbar und an die Schließerwelle des Türschließers angebunden ist und an dem mit Abstand von der Anbindung an die Schließerwelle ein armseitiges Führungselement vorgesehen ist, mit welchem der Türflügel bewegungsverbindbar ist,
  • • mit einer Führung, an welcher der Schließerarm mittels des armseitigen Führungselements geführt ist und längs derer das armseitige Führungselement bei einer Öffnungsbewegung des Türflügels mit einer Öffnungsbewegung und bei einer Schließbewegung des Türflügels mit einer Schließbewegung geführt bewegbar ist sowie
  • • mit einer an der Führung für das armseitige Führungselement vorgesehenen Feststellvorrichtung für den Türflügel, die in einen Sperrzustand und in einen Freigabezustand schaltbar ist und welche bei geöffnetem Türflügel im Sperrzustand das armseitige Führungselement und dadurch den Türflügel an einer Schließbewegung hindert und im Freigabezustand das armseitige Führungselement und dadurch den Türflügel eine Schließbewegung ausführen lässt,
  • • wobei die Feststellvorrichtung einen Anschlag für das armseitige Führungselement aufweist, der als Teil einer um eine Schwenkachse schwenkbaren Schwenkeinheit vorgesehen und in eine dem Freigabezustand der Feststellvorrichtung zugeordnete Freigabestellung sowie in eine dem Sperrzustand der Feststellvorrichtung zugeordnete Sperrstellung bewegbar ist, in welcher der Anschlag für das armseitige Führungselement mittels einer in einen Haltezustand geschalteten und außerdem in einen Lösezustand schaltbaren Haltevorrichtung lösbar fixiert ist,
  • • wobei der Anschlag für das armseitige Führungselement von dem eine Öffnungsbewegung ausführenden armseitigen Führungselement passierbar ist, indem der Anschlag aufgrund einer durch die Öffnungsbewegung des armseitigen Führungselements bewirkten Schwenkbewegung der Schwenkeinheit aus der Bewegungsbahn der Öffnungsbewegung des armseitigen Führungselements auslenkbar ist,
  • • wobei der Anschlag für das armseitige Führungselement, nachdem er von dem armseitigen Führungselement bei dessen Öffnungsbewegung passiert worden ist, aufgrund einer Rückstell-Schwenkbewegung der Schwenkeinheit in der Sperrstellung in die Bewegungsbahn der Schließbewegung des armseitigen Führungselements ragt,
  • • wobei die Haltevorrichtung des Anschlags für das armseitige Führungselement bei in der Sperrstellung in die Bewegungsbahn der Schließbewegung des armseitigen Führungselements ragendem Anschlag für das armseitige Führungselement in den Lösezustand schaltbar ist und
  • • wobei bei Lösezustand der Haltevorrichtung der Anschlag für das armseitige Führungselement aus der Sperrstellung in die Freigabestellung bewegbar ist, in welcher er das armseitige Führungselement und dadurch den Türflügel eine Schließbewegung ausführen lässt.
The invention relates to a locking device for a door leaf that can be opened with an opening movement and closed with a closing movement,
  • • with a door closer, by means of which the door leaf can be driven to execute the closing movement and which has a closer shaft,
  • • with a closer arm, which can be arranged between the door leaf and a fixed door frame and is connected to the closer shaft of the door closer and on which an arm-side guide element is provided at a distance from the connection to the closer shaft, with which the door leaf can be moved,
  • • with a guide on which the closer arm is guided by means of the arm-side guide element and along which the arm-side guide element can be moved with an opening movement during an opening movement of the door leaf and with a closing movement during a closing movement of the door leaf, and
  • • With a locking device for the door leaf provided on the guide for the arm-side guide element, which can be switched into a locked state and into a released state and which prevents the arm-side guide element and thereby the door leaf from closing when the door leaf is open in the locked state and prevents the arm-side guide element from closing in the released state and thereby allows the door leaf to perform a closing movement,
  • • wherein the locking device has a stop for the arm-side guide element, which is provided as part of a pivoting unit pivotable about a pivot axis and can be moved into a release position assigned to the release state of the locking device and into a locking position assigned to the locking state of the locking device, in which the stop for the arm-side The guide element is releasably fixed by means of a holding device which is switched into a holding state and can also be switched into a release state,
  • • The stop for the arm-side guide element can be passed by the arm-side guide element executing an opening movement, in that the stop can be deflected from the movement path of the opening movement of the arm-side guide element due to a pivoting movement of the pivoting unit caused by the opening movement of the arm-side guide element
  • • wherein the stop for the arm-side guide element, after it has been passed by the arm-side guide element during its opening movement, protrudes into the movement path of the closing movement of the arm-side guide element due to a return pivoting movement of the pivoting unit in the blocking position,
  • • wherein the holding device of the stop for the arm-side guide element can be switched into the release state when the stop for the arm-side guide element protrudes in the locking position into the movement path of the closing movement of the arm-side guide element, and
  • • In the released state of the holding device, the stop for the arm-side guide element can be moved from the locking position into the release position, in which it allows the arm-side guide element and thereby the door leaf to perform a closing movement.

Eine derartige Schließvorrichtung ist bekannt aus DE 41 40 658 A1 .Such a locking device is known from DE 41 40 658 A1 .

Die Druckschrift offenbart eine Schließvorrichtung für einen mit einem Türschließer versehenen Türflügel. Die Schließvorrichtung umfasst eine elektromechanische Feststellvorrichtung, die im Innern einer Gleitschiene montiert ist. Die elektromechanische Feststellvorrichtung dient dazu, ein an einem Betätigungsarm des Türschließers angebrachtes und an der Gleitschiene längsbeweglich geführtes Gleitstück bei geöffnetem Türflügel zu arretieren. Ein zweiarmiger Schwenkhebel der elektromechanischen Feststellvorrichtung ist an der Gleitschiene schwenkbeweglich gelagert. Ein Hebelarm des Schwenkhebels weist an seinem freien Ende eine Ankerplatte auf. Der Ankerplatte an dem Schwenkhebel ist als Haltevorrichtung ein schaltbarer Elektromagnet zugeordnet, der seinerseits an der Gleitschiene montiert ist. Längs des zweiten Hebelarms des Schwenkhebels erstreckt sich ein an dem Schwenkhebel schwenkbar gelagerter Rasthebel. Ist der Schwenkhebel über die Ankerplatte an dem Elektromagneten fixiert und damit die elektromechanische Feststellvorrichtung in den Sperrzustand geschaltet, so nimmt der Schwenkhebel eine Schwenkstellung ein, in welcher ein an dem Rasthebel vorgesehener und als Rastnocken ausgeführter Anschlag in eine Sperrstellung bewegt ist. In der Sperrstellung ragt der Rastnocken in die längs der Gleitschiene verlaufende Bewegungsbahn des an dem Betätigungsarm des Türschließers angebrachten Gleitstücks und bei geöffnetem Türflügel blockiert der in die Sperrstellung bewegte Rastnocken das Gleitstück sowie den damit bewegungsverbundenen Türflügel gegen eine in Schließrichtung ausgeführte Bewegung. Wird die elektromechanische Feststellvorrichtung bei geöffnetem Türflügel ausgelöst und damit die Verbindung zwischen dem Elektromagneten und dem zugeordneten Hebelarm des Schwenkhebels aufgehoben, so bewegt sich der Schwenkhebel in eine Schwenkstellung, in welcher der Rastnocken des Rasthebels eine Freigabestellung einnimmt und folglich eine Schließbewegung des Gleitstücks und des damit bewegungsverbundenen Türflügels zulässt.The document discloses a locking device for a door leaf provided with a door closer. The locking device comprises an electromechanical locking device which is mounted inside a slide rail. The electromechanical locking device is used on an actuating arm the door closer attached and longitudinally movably guided on the slide rail to lock with the door leaf open. A two-armed pivot lever of the electromechanical locking device is pivotably mounted on the slide rail. A lever arm of the pivot lever has an anchor plate at its free end. The armature plate on the pivot lever is assigned a switchable electromagnet as a holding device, which in turn is mounted on the slide rail. A latching lever pivotably mounted on the pivot lever extends along the second lever arm of the pivot lever. If the pivot lever is fixed to the electromagnet via the armature plate and the electromechanical locking device is thus switched to the locked state, the pivot lever assumes a pivot position in which a stop provided on the locking lever and designed as a locking cam is moved into a locking position. In the locked position, the locking cam protrudes into the path of movement of the slide attached to the actuating arm of the door closer, and when the door leaf is open, the locking cam moved into the locked position blocks the sliding piece and the door leaf connected to it against a movement in the closing direction. If the electromechanical locking device is triggered with the door leaf open and the connection between the electromagnet and the associated lever arm of the swivel lever is canceled, the swivel lever moves into a swivel position in which the locking cam of the locking lever assumes a release position and consequently a closing movement of the slider and the with it motion-related door leaf allows.

Aufgrund ihrer Konstruktionsweise benötigt die vorbekannte Schließvorrichtung einen verhältnismäßig großen Einbauraum.Due to its construction, the previously known locking device requires a relatively large installation space.

Eine kompakt bauende Schließvorrichtung bereitzustellen, ist ausgehend von dem beschriebenen Stand der Technik Aufgabe der vorliegenden Erfindung.On the basis of the prior art described, the object of the present invention is to provide a compactly constructed locking device.

Erfindungsgemäß gelöst wird diese Aufgabe durch die Schließvorrichtung gemäß Anspruch 1.According to the invention, this object is achieved by the locking device according to claim 1.

Im Falle der Erfindung ist die schaltbare Haltevorrichtung, mittels derer der Anschlag für das an dem Schließerarm vorgesehene armseitige Führungselement in einer Sperrstellung fixiert werden kann, gemeinsam mit dem Anschlag für das armseitige Führungselement in eine Schwenkeinheit integriert. Die Schwenkeinheit bildet folglich ein kompaktes und mehrere Funktionen in sich vereinigendes Bauteil der erfindungsgemäßen Schließvorrichtung. Insbesondere besteht die Möglichkeit, dass die Schwenkeinheit mit dem Anschlag für das armseitige Führungselement und der für diesen Anschlag vorgesehenen Haltevorrichtung nach Art eines einarmigen Hebels ausgeführt ist und in Längsrichtung der Führung ein lediglich kleines Baumaß aufweist.In the case of the invention, the switchable holding device, by means of which the stop for the arm-side guide element provided on the closer arm can be fixed in a locking position, is integrated into a swivel unit together with the stop for the arm-side guide element. The swivel unit consequently forms a compact component of the locking device according to the invention that combines several functions. In particular, there is the possibility that the pivot unit with the stop for the arm-side guide element and the holding device provided for this stop is designed in the manner of a one-armed lever and has only a small structural dimension in the longitudinal direction of the guide.

Besondere Ausführungsarten der Erfindung nach Anspruch 1 ergeben sich aus den abhängigen Ansprüchen 2 bis 10.Special embodiments of the invention according to claim 1 emerge from the dependent claims 2 to 10.

Gemäß Anspruch 2 ist in bevorzugter Ausgestaltung der Erfindung als Haltevorrichtung des Anschlags für das armseitige Führungselement ein aktivierbarer und deaktivierbarer Haltemagnet, insbesondere ein schaltbarer Elektromagnet, vorgesehen. Bei Haltemagneten der erfindungsgemäßen Art handelt es sich um funktionssichere Vorrichtungen, die in der Lage sind, die zur lösbaren Fixierung des Anschlags für das armseitige Führungselement benötigten Haltekräfte aufzubringen. Bei Verwendung eines schaltbaren Elektromagneten kann die Feststellvorrichtung als elektromechanische Feststellvorrichtung ausgeführt werden.According to claim 2, in a preferred embodiment of the invention, an activatable and deactivatable holding magnet, in particular a switchable electromagnet, is provided as the holding device of the stop for the arm-side guide element. Holding magnets of the type according to the invention are functionally reliable devices which are able to apply the holding forces required for the detachable fixation of the stop for the arm-side guide element. When using a switchable electromagnet, the locking device can be designed as an electromechanical locking device.

Ausweislich Anspruch 3 ist der Anschlag für das armseitige Führungselement in weiterer bevorzugter Ausgestaltung der Erfindung an der Schwenkeinheit beweglich geführt. Zum Überführen des Anschlags aus der Sperrstellung in die Freigabestellung und/oder aus der Freigabestellung in die Sperrstellung muss folglich nicht die gesamte Schwenkeinheit sondern nur der Anschlag für das armseitige Führungselement bewegt werden.As evidenced by claim 3, the stop for the arm-side guide element is movably guided on the pivot unit in a further preferred embodiment of the invention. In order to transfer the stop from the blocking position into the release position and / or from the release position into the blocking position, it is consequently not necessary to move the entire pivot unit, but rather only the stop for the arm-side guide element.

Erfindungsgemäß kommen verschiedenartige Bewegungen zur Überführung des Anschlags für das armseitige Führungselement aus der Sperrstellung in die Freigabestellung und/oder aus der Freigabestellung in die Sperrstellung in Frage. Gemäß Anspruch 4 wird im Falle der Erfindung eine Schwenkbewegung des Anschlags für das armseitige Führungselement um eine Anschlag-Schwenkachse bevorzugt. Eine derartige Schwenkbewegung ist reibungsarm und wird folglich funktionssicher ausgeführt. Nachdem dies auch für die Bewegung des Anschlags aus der Sperrstellung in die Freigabestellung gilt, wird die Feststellvorrichtung der erfindungsgemäßen Schließvorrichtung insbesondere zuverlässig ausgelöst. Ein Auslösen der Feststellvorrichtung kann aufgrund eines regulären Schaltvorgangs an der Haltevorrichtung für den Anschlag oder irregulär, beispielsweise aufgrund einer auf den geöffneten Türflügel wirkenden Überlast erfolgen.According to the invention, various movements for transferring the stop for the arm-side guide element from the blocking position into the release position and / or from the release position into the blocking position are possible. According to claim 4, a pivoting movement of the stop is in the case of the invention preferred for the arm-side guide element about a stop pivot axis. Such a pivoting movement has little friction and is consequently carried out in a functionally reliable manner. Since this also applies to the movement of the stop from the locking position into the release position, the locking device of the locking device according to the invention is triggered in particular reliably. The locking device can be triggered due to a regular switching process on the holding device for the stop or irregularly, for example due to an overload acting on the open door leaf.

Die Schwenkbeweglichkeit des Anschlags für das armseitige Führungselement wird im Falle einer weiteren bevorzugten Erfindungsbauart dadurch realisiert, dass der Anschlag für das armseitige Führungselement von einem Hebel gebildet ist, der um eine die Anschlag-Schwenkachse bildende Hebel-Schwenkachse schwenken kann (Anspruch 5). Bei einem Schwenkhebel der erfindungsgemäßen Art handelt es sich um ein konstruktiv einfaches und kostengünstiges Bauteil, das sich gleichwohl durch eine hohe Funktionssicherheit auszeichnet und welches die Möglichkeit bietet, durch die Wahl der Hebelverhältnisse auf einfache Art und Weise Einfluss auf die Kraftverhältnisse zu nehmen. Ist der Schwenkhebel entsprechend ausgerichtet, etwa quer zu der Achse der von dem armseitigen Führungselement längs der Führung ausgeführten Bewegungen, so lässt sich der Schwenkhebel in Längsrichtung der Führung platzsparend unterbringen.The pivoting mobility of the stop for the arm-side guide element is realized in the case of a further preferred embodiment of the invention in that the stop for the arm-side guide element is formed by a lever which can pivot about a lever pivot axis forming the stop pivot axis (claim 5). A pivot lever of the type according to the invention is a structurally simple and inexpensive component which is nevertheless characterized by high functional reliability and which offers the possibility of influencing the force relationships in a simple manner by selecting the lever ratios. If the pivot lever is aligned accordingly, approximately transversely to the axis of the movements carried out by the arm-side guide element along the guide, the pivot lever can be accommodated in a space-saving manner in the longitudinal direction of the guide.

Bevorzugtermaßen ist der den Anschlag für das armseitige Führungselement bildende Hebel als zweiarmiger Hebel mit einem Anschlagarm und einem Haltearm ausgeführt (Anspruch 6). Als Anschlag für das armseitige Führungselement wird der Anschlagarm des zweiarmigen Hebels genutzt, der mit einer Schwenkbewegung um die Hebel-Schwenkachse aus der Sperrstellung in die Freigabestellung und/oder in Gegenrichtung schwenkbar ist. Der Haltearm dient dazu, den in die Sperrstellung geschwenkten Anschlagarm mittels der schaltbaren Haltevorrichtung lösbar in der Sperrstellung zu fixieren. Durch geeignete Wahl der Längen des Anschlagarms und des Haltearms kann auf einfache Art und Weise eine Kraftüber- bzw. -untersetzung realisiert werden, aufgrund derer insbesondere sichergestellt ist, dass die an der schaltbaren Haltevorrichtung zur Verfügung stehende Haltekraft ausreicht, um den Anschlag für das armseitige Führungselement sicher in der Sperrstellung zu fixieren. Besitzt der Haltearm eine entsprechende Überlänge gegenüber dem Anschlagarm, so reichen bereits verhältnismäßig leistungsschwache und folglich klein bauende Haltemagnete aus, um die benötigte Haltekraft zu erzeugen.The lever forming the stop for the arm-side guide element is preferably designed as a two-armed lever with a stop arm and a holding arm (claim 6). As a stop for the arm-side guide element, the stop arm of the two-armed lever is used, which can be pivoted with a pivoting movement about the lever pivot axis from the locking position into the release position and / or in the opposite direction. The holding arm serves to releasably fix the stop arm pivoted into the blocking position in the blocking position by means of the switchable holding device. By suitable selection of the lengths of the stop arm and the holding arm, a force step-up or step-down can be implemented in a simple manner, due to which it is ensured in particular that the holding force available on the switchable holding device is sufficient to reach the stop for the arm-side Guide element to be fixed securely in the locked position. If the holding arm has a corresponding excess length compared to the stop arm, then even relatively inefficient and consequently small holding magnets are sufficient to generate the required holding force.

Einem konstruktiv einfachen Aufbau der Gesamtanordnung bei gleichzeitig hoher Funktionssicherheit dienen die kennzeichnenden Merkmale der Ansprüche 7 und 8.The characterizing features of claims 7 and 8 serve a structurally simple structure of the overall arrangement with high functional reliability at the same time.

Gemäß Anspruch 7 bewegt sich der Anschlag für das armseitige Führungselement nach dem Auslösen der Feststellvorrichtung selbsttätig aus der Freigabestellung zurück in die Sperrstellung. Ausweislich Anspruch 8 schwenkt die Schwenkeinheit mit dem Anschlag für das armseitige Führungselement und der für den Anschlag vorgesehenen Haltevorrichtung nach dem Auslenken durch das sich in Öffnungsrichtung bewegende armseitige Führungselement selbsttätig in die Ausgangsstellung zurück. Ist der Anschlag für das armseitige Führungselement mittels der schaltbaren Haltevorrichtung fixiert, so nimmt der Anschlag für das armseitige führungselement nach der selbsttätigen Rückstell-Schwenkbewegung der Schwenkeinheit die Sperrstellung ein, in welcher er bei geöffnetem Türflügel das armseitige Führungselement und den damit bewegungsverbundenen Türflügel an einer Schließbewegung hindert.According to claim 7, the stop for the arm-side guide element moves automatically from the release position back into the blocking position after the locking device has been triggered. According to claim 8, the swivel unit with the stop for the arm-side guide element and the holding device provided for the stop automatically swivels back into the starting position after being deflected by the arm-side guide element moving in the opening direction. If the stop for the arm-side guide element is fixed by means of the switchable holding device, the stop for the arm-side guide element, after the automatic return pivoting movement of the pivoting unit, assumes the locking position in which it closes the arm-side guide element and the movement-related door panel when the door is open hinders.

In weiterer bevorzugter Ausgestaltung der Erfindung wird der Anschlag für das armseitige Führungselement bei Lösezustand der Haltevorrichtung durch das armseitige Führungselement aus der Sperrstellung in die Freigabestellung bewegt (Anspruch 9). Einer gesonderten Vorrichtung zum Bewegen des Anschlags bedarf es folglich nicht. Wird der Anschlag für das armseitige Führungselement von einem schwenkbaren Hebel gebildet, so kann das durch den Türschließer in Schließrichtung beaufschlagte armseitige Führungselement den Hebel und somit den Anschlag für das armseitige Führungselement aus der Sperrstellung in die Freigabestellung schwenken. Ist an dem Anschlag für das armseitige Führungselement und/oder an dem armseitigen Führungselement eine entsprechend verlaufende Auflaufschräge vorgesehen, so wird der Anschlag für das armseitige Führungselement durch das sich in Schließrichtung bewegende armseitige Führungselement in Querrichtung der Schließbewegung aus der Bewegungsbahn des armseitigen Führungselements ausgelenkt.In a further preferred embodiment of the invention, the stop for the arm-side guide element is moved by the arm-side guide element from the locking position into the release position when the holding device is in the released state (claim 9). A separate device for moving the stop is consequently not required. If the stop for the arm-side guide element is formed by a pivotable lever, the arm-side guide element acted upon by the door closer in the closing direction can pivot the lever and thus the stop for the arm-side guide element from the locking position into the release position. If a corresponding run-up slope is provided on the stop for the arm-side guide element and / or on the arm-side guide element, the stop for the arm-side guide element is provided by the arm-side guide element moving in the closing direction deflected in the transverse direction of the closing movement from the path of movement of the arm-side guide element.

Anspruch 10 betrifft eine Erfindungsbauart, im Falle derer der Betrag der Kraft, die zum Auslösen der Feststellvorrichtung auf den in der Sperrstellung befindlichen Anschlag für das armseitige Führungselement ausgeübt werden muss, eingestellt werden kann. Der Anschlag für das armseitige Führungselement wird von einem um eine Hebel-Schwenkachse schwenkbaren Hebel gebildet. Ist die Feststellvorrichtung wirksam, so ist der Hebel in die Sperrstellung geschwenkt und dort mittels der Haltevorrichtung fixiert. Der Türschließer ist bestrebt, das armseitige Führungselement mit einer Schließbewegung längs der für das armseitige Führungselement vorgesehenen Führung zu bewegen. Daraus resultiert eine Kraftbeaufschlagung des den Anschlag für das armseitige Führungselement bildenden Hebels durch das armseitige Führungselement. Der Betrag der Kraft, die durch das armseitige Führungselement in den Hebel eingeleitet werden muss, um den als Anschlag für das armseitige Führungselement vorgesehenen Hebel aus der Sperrstellung in die Freigabestellung zu schwenken, ist abhängig von der Länge des Hebelarms, mit welchem die in den Hebel eingeleitete Kraft an dem Hebel angreift. Ist der Hebelarm beispielsweise verhältnismäßig lang, so reicht eine relativ kleine Kraft aus, um die Feststellvorrichtung aus dem Sperrzustand in den Freigabezustand zu überführen und dadurch zu lösen. Gemäß Anspruch 10 besteht insbesondere die Möglichkeit, für die erfindungsgemäße Schließvorrichtung eine Überlastsicherung bereitzustellen, die dafür sorgt, dass die Ausübung irregulär großer Kräfte auf den Türflügel zu einem Auslösen der Feststellvorrichtung führt und dadurch eine ansonsten zu befürchtende Beschädigung der Schließvorrichtung vermieden wird.Claim 10 relates to an inventive design in which the amount of force that has to be exerted on the stop for the arm-side guide element in the blocking position to trigger the locking device can be adjusted. The stop for the arm-side guide element is formed by a lever pivotable about a lever pivot axis. If the locking device is effective, the lever is pivoted into the locking position and fixed there by means of the holding device. The door closer strives to move the arm-side guide element with a closing movement along the guide provided for the arm-side guide element. This results in a force being applied to the lever that forms the stop for the arm-side guide element by the arm-side guide element. The amount of force that must be introduced into the lever by the arm-side guide element in order to pivot the lever provided as a stop for the arm-side guide element from the locking position into the release position depends on the length of the lever arm with which the lever is inserted applied force on the lever. If the lever arm is relatively long, for example, a relatively small force is sufficient to transfer the locking device from the locked state to the released state and thereby release it. According to claim 10, there is in particular the possibility of providing an overload protection device for the locking device according to the invention, which ensures that the exertion of irregularly large forces on the door leaf leads to the locking device being triggered and thereby avoiding damage to the locking device that would otherwise be feared.

Nachfolgend wird die Erfindung anhand beispielhafter schematischer Darstellungen näher erläutert. Es zeigen:

Figur 1
eine Schnittdarstellung einer ersten Bauart einer Schließvorrichtung für einen Türflügel mit einer elektromechanischen Feststellvorrichtung in einem ersten Funktionszustand,
Figur 2
die Anordnung gemäß Figur 1 bei einem zweiten Funktionszustand der elektromechanischen Feststellvorrichtung,
Figur 3
die Anordnung gemäß den Figuren 1 und 2 bei einem dritten Funktionszustand der elektromechanischen Feststellvorrichtung,
Figur 4
eine perspektivische Darstellung der elektromechanischen Feststellvorrichtung gemäß den Figuren 1 bis 3 in dem Funktionszustand gemäß Figur 3 und
Figur 5
eine Schnittdarstellung einer zweiten Bauart einer Schtießvorrichtung für einen Türflügel, mit einer elektronischen Feststellvorrichtung.
The invention is explained in more detail below with the aid of exemplary schematic representations. Show it:
Figure 1
a sectional view of a first type of locking device for a door leaf with an electromechanical locking device in a first functional state,
Figure 2
the arrangement according to Figure 1 in a second functional state of the electromechanical locking device,
Figure 3
the arrangement according to the Figures 1 and 2 in a third functional state of the electromechanical locking device,
Figure 4
a perspective view of the electromechanical locking device according to FIG Figures 1 to 3 in the functional state according to Figure 3 and
Figure 5
a sectional view of a second type of shooting device for a door leaf, with an electronic locking device.

Gemäß den Figuren 1 bis 4 umfasst eine Schließvorrichtung 1 für einen nicht dargestellten Türflügel eine Gleitschiene 2, die als Führung für ein Gleitstück 3 dient, das seinerseits an einem Ende eines in Figur 1 lediglich angedeuteten Schließerarms 4 vorgesehen ist und ein armseitiges Führungselement bildet. Der Schließerarm 4 ist an dem von dem Gleitstück 3 abliegenden Ende an eine Schließerwelle eines in Figur 1 gleichfalls nur angedeuteten Türschließers 5 angebunden. In gewohnter Weise ist der Türschließer 5 an dem nicht dargestellten Türflügel und die Gleitschiene 2 an dem festen Türrahmen montiert. Eine Öffnungsbewegung des Türflügels wird über den Schließerarm 4 in eine Öffnungsbewegung des Gleitstücks 3 umgesetzt. Das Gleitstück 3 bewegt sich dabei längs der Gleitschiene 2 in einer Pfeilrichtung 6. Wird der Türflügel ausgehend von einer Öffnungsstellung durch den Türschließer 5 geschlossen, so wird das Gleitstück 3 mittels des Schließerarms 4 mit einer Schließbewegung in einer Pfeilrichtung 7 längs der Gleitschiene 2 bewegt.According to the Figures 1 to 4 comprises a locking device 1 for a door leaf, not shown, a slide rail 2, which serves as a guide for a sliding piece 3, which in turn at one end of an in Figure 1 only indicated closer arm 4 is provided and forms an arm-side guide element. The closer arm 4 is at the end remote from the slider 3 to a closer shaft of an in Figure 1 likewise only indicated door closer 5 connected. In the usual way, the door closer 5 is mounted on the door leaf, not shown, and the slide rail 2 is mounted on the fixed door frame. An opening movement of the door leaf is converted into an opening movement of the slide 3 via the closer arm 4. The slide 3 moves along the slide 2 in the direction of the arrow 6. If the door leaf is closed by the door closer 5 starting from an open position, the slide 3 is moved by means of the closer arm 4 with a closing movement in the direction of the arrow 7 along the slide 2.

Eine im Innern der Gleitschiene 2 untergebrachte Feststellvorrichtung 8 dient dazu, den geöffneten Türflügel bei einem vorgegebenen Türöffnungswinkel zu arretieren. Über einen ebenfalls im Innern der Gleitschiene 2 angeordneten Feststellbock 9 ist die Feststellvorrichtung 8 in Längsrichtung der Gleitschiene 2 unbeweglich an dieser fixiert. Zu diesem Zweck ist eine den Feststellbock 9 durchsetzende Klemmschraube 10 vorgesehen, welche den Feststellbock 9 gegen die Innenwand der Gleitschiene 2 verspannt.A locking device 8 accommodated in the interior of the slide rail 2 is used to lock the open door leaf at a predetermined door opening angle. The locking device 8 is fixed immovably on the slide rail 2 in the longitudinal direction of the slide rail 2 by means of a locking bracket 9, which is also arranged in the interior of the slide rail 2. For this purpose, the locking bracket 9 is penetrating Clamping screw 10 is provided, which braces the locking bracket 9 against the inner wall of the slide rail 2.

Eine Schwenkeinheit 11 der Feststellvorrichtung 8 ist mit einem Grundkörper 12 an den Feststellbock 9 angelenkt und um eine Schwenkachse 13 in Richtung eines Doppelpfeils 14 schwenkbeweglich. In Figur 1 im Gegenuhrzeigersinn gerichtete Schwenkbewegungen führt die Schwenkeinheit 11 gegen die Wirkung einer Rückstellkraft aus, die von einer zwischen dem Grundkörper 12 der Schwenkeinheit 11 und dem Feststellbock 9 vorgespannten ersten Rückstellfeder 15 erzeugt wird.A pivot unit 11 of the locking device 8 is articulated to the locking bracket 9 by a base body 12 and is pivotable about a pivot axis 13 in the direction of a double arrow 14. In Figure 1 Counterclockwise pivoting movements are carried out by the pivoting unit 11 against the action of a restoring force which is generated by a first restoring spring 15 pretensioned between the base body 12 of the pivoting unit 11 and the locking bracket 9.

Mit dem Grundkörper 12 der Schwenkeinheit 11 verschraubt ist ein schaltbarer Elektromagnet 16, der über elektrische Leitungen 17 (Figur 4) an eine Spannungsquelle angeschlossen ist.A switchable electromagnet 16 is screwed to the base body 12 of the swivel unit 11, which via electrical lines 17 ( Figure 4 ) is connected to a voltage source.

Der Elektromagnet 16 dient als schaltbare Haltevorrichtung für einen zweiarmigen Hebel 18, der seinerseits um eine Hebel-Schwenkachse 19 schwenkbar an dem Grundkörper 12 der Schwenkeinheit 11 gelagert ist. An der dem Elektromagneten 16 zugewandten Seite ist der zweiarmige Hebel 18 mit einer Ankerplatte 20 versehen. Die Ankerplatte 20 ist mit einem Haltearm 21 des zweiarmigen Hebels 18 verschraubt. Ein an der gegenüberliegenden Seite der Hebel-Schwenkachse 19 vorgesehener Hebelarm des zweiarmigen Hebels 18 bildet einen Anschlagarm 22, der als Anschlag für das Gleitstück 3 dient. In Querrichtung der Zeichenebene der Figuren 1 bis 3 ist der Anschlagarm 22 des zweiarmigen Hebels 18 derart bemessen, dass er in einen Führungsschlitz 23 eintauchen kann, der an der Gleitschiene 2 für das Gleitstück 3 vorgesehen ist und an dessen Längsrändern das Gleitstück 3 bei Bewegungen in den Pfeilrichtungen 6, 7 geführt ist.The electromagnet 16 serves as a switchable holding device for a two-armed lever 18, which in turn is mounted on the base body 12 of the pivot unit 11 such that it can pivot about a lever pivot axis 19. On the side facing the electromagnet 16, the two-armed lever 18 is provided with an anchor plate 20. The anchor plate 20 is screwed to a holding arm 21 of the two-armed lever 18. A lever arm of the two-armed lever 18 provided on the opposite side of the lever pivot axis 19 forms a stop arm 22 which serves as a stop for the slider 3. In the transverse direction of the plane of the drawing Figures 1 to 3 the stop arm 22 of the two-armed lever 18 is dimensioned such that it can dip into a guide slot 23 which is provided on the slide rail 2 for the slide 3 and on the longitudinal edges of which the slide 3 is guided during movements in the directions of arrows 6, 7.

Eine zweite Rückstellfeder 24 durchsetzt eine Durchtrittsöffnung des zweiarmigen Hebels 18 und ist einerseits an der mit dem zweiarmigen Hebel 18 verschraubten Ankerplatte 20 und andererseits an einem Fortsatz 25 des Grundkörpers 12 der Schwenkeinheit 11 abgestützt. Der Fortsatz 25 ist mit einem dem zweiarmigen Hebel 18 zugeordneten ersten Anschlagpuffer 26 und mit einem der Gleitschiene 2 zugeordneten zweiten Anschlagpuffer 27 versehen (Figur 2). An seinem freien Ende weist der Fortsatz 25 des Grundkörpers 12 eine mit einem Innengewinde versehene Bohrung auf, in die eine Stellschraube 28 eingedreht ist. Die Stellschraube 28 bildet eine Stellvorrichtung und ist mit einem Schraubenkopf 29 an der Oberseite der Längsränder des an der Gleitschiene 2 vorgesehenen Führungsschlitzes 23 gelagert.A second return spring 24 penetrates a passage opening of the two-armed lever 18 and is supported on the one hand on the anchor plate 20 screwed to the two-armed lever 18 and on the other hand on an extension 25 of the base body 12 of the swivel unit 11. The extension 25 is connected to a first stop buffer 26 assigned to the two-armed lever 18 and to one of the slide rails 2 assigned second stop buffer 27 ( Figure 2 ). At its free end, the extension 25 of the base body 12 has a bore provided with an internal thread into which an adjusting screw 28 is screwed. The adjusting screw 28 forms an adjusting device and is mounted with a screw head 29 on the upper side of the longitudinal edges of the guide slot 23 provided on the slide rail 2.

Figur 1 zeigt die Schließvorrichtung 1 während einer Öffnungsbewegung des mit dem Türschließer 5 versehenen Türflügels zu einem Zeitpunkt unmittelbar bevor das sich aufgrund der Öffnungsbewegung des Türflügels in der Pfeilrichtung 6 längs der Gleitschiene 2 bewegende Gleitstück 3 die Schwenkeinheit 11 erreicht. Die Schwenkeinheit 11 ist unter Schwerkraftwirkung und unter der Wirkung der vorgespannten ersten Rückstellfeder 15 gegen die Horizontale geneigt und greift mit dem unteren Teil des Grundkörpers 12 sowie mit dem Anschlagarm 22 des zweiarmigen Hebels 18 in den Führungsschlitz 23 der Gleitschiene 2 ein. An einem Teil, der gegenüber dem in den Führungsschlitz 23 eingreifenden Teil des Grundkörpers 12 erweitert ist, stützt sich die Schwenkeinheit 11 von oben auf den Längsrändern des Führungsschlitzes 23 der Gleitschien 2 ab. Aufgrund ihrer Schrägstellung bildet die Schwenkeinheit 11 an ihrer Unterseite eine Auflaufschräge 30 aus. Der zweiarmige Hebel 18, im Einzelnen dessen Anschlagarm 22, ragt in die Bewegungsbahn der Öffnungsbewegung des Gleitstücks 3. Figure 1 shows the locking device 1 during an opening movement of the door leaf provided with the door closer 5 at a point in time immediately before the sliding piece 3, moving in the direction of arrow 6 along the slide rail 2 due to the opening movement of the door leaf, reaches the pivot unit 11. The pivot unit 11 is inclined to the horizontal under the action of gravity and under the action of the pretensioned first return spring 15 and engages with the lower part of the base body 12 and with the stop arm 22 of the two-armed lever 18 in the guide slot 23 of the slide rail 2. On a part which is widened in relation to the part of the base body 12 engaging in the guide slot 23, the pivot unit 11 is supported from above on the longitudinal edges of the guide slot 23 of the slide rails 2. Due to its inclination, the swivel unit 11 forms a run-up slope 30 on its underside. The two-armed lever 18, specifically its stop arm 22, protrudes into the movement path of the opening movement of the slider 3.

Bewegt sich das Gleitstück 3 aufgrund einer fortgesetzten Öffnungsbewegung des Türflügels ausgehend von der Position gemäß Figur 1 in der Abbildung nach rechts, so läuft das Gleitstück 3 mit seinem in der Pfeilrichtung 6 voreilenden Ende auf die Auflaufschräge 30 an der Unterseite der Schwenkeinheit 11 auf, die Schwenkeinheit 11 wird einschließlich des zweiarmigen Hebels 18 und des Anschlagarms 22 mit einer Schwenkbewegung um die Schwenkachse 13 aus der Bewegungsbahn der Öffnungsbewegung des Gleitstücks 3 im Gegenuhrzeigersinn gegen die Wirkung der Schwerkraft und der von der ersten Rückstellfeder 15 ausgeübten Rückstellkraft ausgelenkt und der Anschlagarm 22 des zweiarmigen Hebels 18 wird von dem Gleitstück 3 in der Pfeilrichtung 6 passiert.If the sliding piece 3 moves due to a continued opening movement of the door leaf starting from the position according to FIG Figure 1 To the right in the figure, the slider 3 runs with its leading end in the direction of arrow 6 on the run-up slope 30 on the underside of the swivel unit 11, the swivel unit 11 including the two-armed lever 18 and the stop arm 22 with a swivel movement about the swivel axis 13 is deflected from the movement path of the opening movement of the slide 3 in the counterclockwise direction against the action of gravity and the restoring force exerted by the first return spring 15 and the stop arm 22 of the two-armed lever 18 is passed by the slide 3 in the direction of arrow 6.

Hat das Gleitstück 3 den Anschlagarm 22 des zweiarmigen Hebels 18 in der Pfeilrichtung 6 passiert, so führt die Schwenkeinheit 11 unter der Wirkung der Schwerkraft und der von der zuvor gestauchten ersten Rückstellfeder 15 ausgeübten Rückstellkraft eine Rückstell-Schwenkbewegung im Uhrzeigersinn aus. Aufgrund der Rückstell-Schwenkbewegung der Schwenkeinheit 11 gelangt diese zurück in die Schwenkstellung gemäß Figur 1.If the slide 3 has passed the stop arm 22 of the two-armed lever 18 in the direction of the arrow 6, the swivel unit 11 executes a swiveling movement in a clockwise direction under the action of gravity and the restoring force exerted by the previously compressed first restoring spring 15. Due to the return pivoting movement of the pivoting unit 11, it returns to the pivoting position according to FIG Figure 1 .

Wird nun der Türflügel freigegeben und durch den Türschließer 5 mit einer Schließbewegung angetrieben, so führt das zuvor an dem Anschlagarm 22 des zweiarmigen Hebels 18 vorbeibewegte Gleitstück 3 eine Schließbewegung in der Pfeilrichtung 7 aus. Infolgedessen nähert sich das Gleitstück 3 längs der Gleitschiene 2 dem nun in die Bewegungsbahn der Schließbewegung des Gleitstücks 3 ragenden Anschlagarm 22 in den Abbildungen von rechts, bis das Gleitstück 3 schließlich an den Anschlagarm 22 des zweiarmigen Hebels 18 anschlägt und sich damit die Verhältnisse gemäß Figur 2 ergeben.If the door leaf is now released and driven with a closing movement by the door closer 5, the slide 3 previously moved past the stop arm 22 of the two-armed lever 18 executes a closing movement in the direction of the arrow 7. As a result, the slide 3 approaches along the slide 2 the stop arm 22 now protruding into the path of the closing movement of the slide 3 in the figures from the right, until the slide 3 finally strikes the stop arm 22 of the two-armed lever 18 and the relationships accordingly Figure 2 surrender.

Die Feststellvorrichtung ist in den Sperrzustand geschaltet, der Anschlagarm 22 befindet sich dementsprechend in der Sperrstellung, in welcher er durch den an dem Haltearm 22 des zweiarmigen Hebels 18 angreifenden Elektromagneten 16 lösbar fixiert ist.The locking device is switched to the locked state, the stop arm 22 is accordingly in the locked position in which it is releasably fixed by the electromagnet 16 acting on the holding arm 22 of the two-armed lever 18.

Aufgrund der Hebelverhältnisse an dem zweiarmigen Hebelarm 18 muss der Elektromagnet 16 nur eine verhältnismäßig kleine Haltekraft aufbringen, damit der Anschlagarm 22 des zweiarmigen Hebels 18 das Gleitstück 3 in der Pfeilrichtung 7 dauerhaft blockiert. Auf das Gleitstück 3 wirkt bei dem in Figur 2 veranschaulichten Funktionszustand der Feststellvorrichtung 8 zwar eine verhältnismäßig große, von dem Türschließer 5 über den Schließerarm 4 in der Pfeilrichtung 7 ausgeübte Kraft; die Wirkungslinie dieser Kraft verläuft aber mit einem lediglich geringen Abstand von der Hebel-Schwenkachse 19 und besitzt folglich nur einen ausgesprochen kurzen Hebelarm. Um ein Mehrfaches größer ist die Länge des Hebelarms der von dem Elektromagneten 16 auf den Haltearm 21 des zweiarmigen Hebels 18 ausgeübten Haltekraft.Due to the lever ratios on the two-armed lever arm 18, the electromagnet 16 only has to apply a relatively small holding force so that the stop arm 22 of the two-armed lever 18 permanently blocks the slider 3 in the direction of the arrow 7. The slide 3 acts on the in Figure 2 illustrated functional state of the locking device 8 although a relatively large force exerted by the door closer 5 via the closer arm 4 in the direction of the arrow 7; however, the line of action of this force runs only a short distance from the lever pivot axis 19 and consequently has only an extremely short lever arm. The length of the lever arm of the holding force exerted by the electromagnet 16 on the holding arm 21 of the two-armed lever 18 is several times greater.

Wird der Elektromagnet 16 stromlos geschaltet, so wird die zuvor von dem Elektromagneten 16 über die Ankerplatte 20 auf den Haltearm 21 des zweiarmigen Hebels 18 ausgeübte Haltekraft aufgehoben und das durch den Türschließer 5 in der Pfeilrichtung 7 kraftbeaufschlagte Gleitstück 3 schwenkt den zweiarmigen Hebel 18 unter Beaufschlagung des Anschlagarms 22 ausgehend von der Schwenkstellung gemäß Figur 2 im Uhrzeigersinn und dabei gegen die Wirkung einer von der zweiten Rückstellfeder 24 ausgeübten Rückstallkraft um die Hebel-Schwenkachse 19. Aufgrund der damit verbundenen Schrägstellung des zweiarmigen Hebels 18 bildet der Anschlagarm 22 des zweiarmigen Hebels 18 eine Auflaufschräge 31 für das Gleitstück 3 aus. Der Anschlagarm 22 befindet sich damit in der Freigabestellung und die Feststellvorrichtung 8 ist in den Freigabezustand geschaltet (Figur 3).If the electromagnet 16 is de-energized, the holding force previously exerted by the electromagnet 16 via the armature plate 20 on the holding arm 21 of the two-armed lever 18 is canceled and the sliding piece 3, which is acted upon by the door closer 5 in the direction of the arrow 7, pivots the two-armed lever 18 when it is acted upon of the stop arm 22 starting from the pivot position according to FIG Figure 2 clockwise and against the action of a restoring force exerted by the second return spring 24 around the lever pivot axis 19. Due to the associated inclination of the two-armed lever 18, the stop arm 22 of the two-armed lever 18 forms a ramp 31 for the slider 3. The stop arm 22 is thus in the release position and the locking device 8 is switched to the release state ( Figure 3 ).

Das von dem Türschließer 5 in der Pfeilrichtung 7 gezogene Gleitstück 3 kann folglich die Schwenkeinheit 11 einschließlich des zweiarmigen Hebels 18 aus der Schwenkstellung gemäß Figur 3 im Gegenuhrzeigersinn um die Schwenkachse 13 schwenken und dadurch den Anschlagarm 22 des zweiarmigen Hebels 18 gegen die Wirkung einer von der ersten Rückstellfeder 15 ausgeübten Rückstellkraft aus der Bewegungsbahn der Schließbewegung des Gleitstücks 3 in Figur 3 nach oben auslenken. Das Gleitstück 3 kann nun eine Schließbewegung in der Pfeilrichtung 7 ausführen. Mit der Schließbewegung des Gleitstücks 3 einher geht eine Schließbewegung des mit dem Gleitstück 3 bewegungsverbundenen Türflügels.The slide 3 pulled by the door closer 5 in the arrow direction 7 can consequently move the swivel unit 11 including the two-armed lever 18 out of the swivel position according to FIG Figure 3 Pivot counterclockwise about the pivot axis 13 and thereby the stop arm 22 of the two-armed lever 18 against the action of a restoring force exerted by the first restoring spring 15 from the movement path of the closing movement of the slider 3 in Figure 3 deflect upwards. The slider 3 can now execute a closing movement in the direction of the arrow 7. The closing movement of the slide 3 is accompanied by a closing movement of the door leaf, which is movement-connected to the slide 3.

Hat das Gleitstück 3 den Anschlagarm 22 des zweiarmigen Hebels 18 in der Pfeilrichtung 7 passiert, so bewirkt die zuvor gestauchte zweite Rückstellfeder 24 eine Rückstellbewegung des zweiarmigen Hebels 18 einschließlich der Ankerplatte 20 und die Ankerplatte 20 legt sich wieder an den Elektromagneten 16 an. Hat sich das Gleitstück 3 weit genug in der Pfeilrichtung 7 bewegt, schwenkt die gesamte Schwenkeinheit 11 unter der Wirkung der ersten Rückstellfeder 15 in die Position gemäß Figur 3 zurück. Wird der zuvor stromlos geschaltete Elektromagnet 16 aktiviert, so ist der Haltearm 21 des zweiarmigen Hebels 18 und damit auch der Anschlagarm 22 wieder an dem Elektromagneten 16 fixiert und der Anschlagarm 22 des zweiarmigen Hebels 18 ist in der Sperrstellung gesichert. Alles in allem ergeben sich damit wieder die Verhältnisse gemäß Figur 1. Wird der Türflügel nun wieder geöffnet, so folgen die vorstehend im Detail beschriebenen Abläufe.Once the slider 3 has passed the stop arm 22 of the two-armed lever 18 in the direction of arrow 7, the previously compressed second return spring 24 causes a return movement of the two-armed lever 18 including the armature plate 20 and the armature plate 20 rests against the electromagnet 16 again. When the slide 3 has moved far enough in the direction of the arrow 7, the entire pivot unit 11 pivots under the action of the first return spring 15 into the position shown in FIG Figure 3 back. If the previously de-energized electromagnet 16 is activated, the holding arm 21 of the two-armed lever 18 and thus also the stop arm 22 are again fixed to the electromagnet 16 and the stop arm 22 of the two-armed lever 18 is secured in the blocking position. All in all, the conditions are accordingly again obtained Figure 1 . Will the door leaf now open again, follow the procedures described in detail above.

Die Stellschraube 28 bietet die Möglichkeit, die Feststellvorrichtung 8 vor einer überlastbedingten Beschädigung zu schützen. Durch eine Drehbetätigung der Stellschraube 28 kann die Schwenkstellung, welche die Schwenkeinheit 11 bei dem in Figur 2 veranschaulichten Sperrzustand der Feststellvorrichtung 8 einnimmt, variiert werden.The adjusting screw 28 offers the possibility of protecting the locking device 8 from damage caused by overload. By rotating the adjusting screw 28, the swivel position, which the swivel unit 11 in the case of FIG Figure 2 illustrated locking state of the locking device 8 assumes, can be varied.

Wird die Stellschraube 28 ausgehend von den Verhältnissen gemäß Figur 2 beispielsweise aus dem Fortsatz 25 des Grundkörpers 12 der Schwenkeinheit 11 herausgedreht, so wird die Schwenkeinheit 11 mit einer Schwenkbewegung im Gegenuhrzeigersinn verstellt. Infolgedessen vergrößert sich der Abstand der Wirkungslinie der von dem Gleitstück 3 in der Pfeilrichtung 7 auf den Anschlagarm 22 des zweiarmigen Hebels 18 ausgeübten Kraft von der Hebel-Schwenkachse 19. Damit verlängert sich der Hebelarm der von dem Gleitstück 3 in der Pfeilrichtung 7 auf das Gleitstück 3 ausgeübten Kraft. Aufgrund dieser Hebelarmverlängerung reduziert sich der Betrag der Kraft, die von dem Gleitstück 3 in der Pfeilrichtung 7 auszuüben ist, um den zweiarmigen Hebel 18 von dem aktivierten Elektromagneten 16 loszureißen und den Anschlagarm 22 gegen die Wirkung der von dem Elektromagneten 16 ausgeübten Haltekraft aus der Sperrstellung in die Freigabestellung zu schwenken.If the adjusting screw 28 is based on the relationships according to Figure 2 For example, rotated out of the extension 25 of the base body 12 of the pivot unit 11, the pivot unit 11 is adjusted with a pivoting movement in the counterclockwise direction. As a result, the distance between the line of action of the force exerted by the slider 3 in the direction of arrow 7 on the stop arm 22 of the two-armed lever 18 from the lever pivot axis 19 increases 3 force exerted. Due to this lever arm extension, the amount of force that has to be exerted by the slider 3 in the direction of arrow 7 in order to tear the two-armed lever 18 away from the activated electromagnet 16 and the stop arm 22 from the locking position against the effect of the holding force exerted by the electromagnet 16 is reduced to pivot into the release position.

Umgekehrt bewirkt ein Eindrehen der Stellschraube 28 in den Grundkörper 12 der Schwenkeinheit 11 eine Verkürzung des Hebelarms der von dem Gleitstück 3 in der Pfeilrichtung 7 in den Anschlagarm 22 eingeleiteten Kraft. Damit verbunden ist eine Vergrößerung des Betrages der Kraft, die von dem Gleitstück 3 auf den Anschlagarm 22 in der Pfeilrichtung 7 ausgeübt werden muss, damit sich der Haltearm 21 des zweiarmigen Hebels 18 von dem aktivierten Elektromagneten 16 löst.Conversely, screwing the adjusting screw 28 into the base body 12 of the swivel unit 11 shortens the lever arm of the force introduced into the stop arm 22 by the slider 3 in the direction of the arrow 7. Associated with this is an increase in the amount of force that must be exerted by the slider 3 on the stop arm 22 in the direction of the arrow 7 so that the holding arm 21 of the two-armed lever 18 is released from the activated electromagnet 16.

Diese Lösekraft kann durch Betätigen der Stellschraube 28 in ihrem Betrag derart eingestellt werden, dass sich insbesondere bei irregulären Verhältnissen, etwa beim Angriff irregulär großer Kräfte an dem mit dem Türschließer 5 versehenen Türflügel, der zweiarmige Hebel 18 von dem aktivierten Elektromagneten 16 löst, bevor die Schließvorrichtung 1 aufgrund der wirksamen irregulären Kräfte beschädigt wird.This release force can be adjusted in terms of its amount by actuating the adjusting screw 28 in such a way that, in particular in the case of irregular conditions, for example when irregularly large forces are applied to the one provided with the door closer 5 Door leaf, the two-armed lever 18 releases from the activated electromagnet 16 before the locking device 1 is damaged due to the effective irregular forces.

Figur 5 zeigt eine Schließvorrichtung 51, die gegenüber der Schließvorrichtung 1 gemäß den Figuren 1 bis 4 konstruktiv vereinfacht ist, die aber hinsichtlich ihres grundsätzlichen Aufbaus und ihrer grundsätzlichen Funktionsweise mit der Schließvorrichtung 1 übereinstimmt. Eine Feststellvorrichtung 58 der Schließvorrichtung 51 weist eine Schwenkeinheit 61 mit einem Grundkörper 62 auf, der abweichend von dem Grundkörper 12 der Schwenkeinheit 11 gemäß den Figuren 1 bis 4 keinen mit einer Stellvorrichtung versehenen Fortsatz aufweist. Darüber hinaus ist ein als armseitiges Führungselement dienendes Gleitstück 53 der Schließvorrichtung 51 anders als das Gleitstück 3 gemäß den Figuren 1 bis 4 an seiner bei Öffnungsbewegungen in der Pfeilrichtung 6 voreilenden Seite mit einer Auflaufschräge 65 versehen. Die Auflaufschräge 65 bewirkt bei Öffnungsbewegungen des Gleitstücks 53 ein Auslenken der Schwenkeinheit 61 mit einer im Gegenuhrzeigersinn um eine Schwenkachse 63 ausgeführten Bewegung. Im Übrigen umfasst auch die Feststellvorrichtung 58 gemäß Figur 5 einen schaltbaren Elektromagneten 16, der im aktivierten Zustand einen zweiarmigen Hebel 18 an einem Haltearm 21 fixiert und dadurch einen Anschlagarm 22 des zweiarmigen Hebels 18 in einer Sperrstellung lösbar sichert. Figure 5 shows a locking device 51, which compared to the locking device 1 according to FIGS Figures 1 to 4 is structurally simplified, which, however, corresponds to the locking device 1 in terms of its basic structure and its basic mode of operation. A locking device 58 of the locking device 51 has a swivel unit 61 with a base body 62 which, unlike the base body 12 of the swivel unit 11 according to FIGS Figures 1 to 4 has no extension provided with an adjusting device. In addition, a sliding piece 53 of the locking device 51 serving as an arm-side guide element is different from the sliding piece 3 according to FIGS Figures 1 to 4 provided with a run-up bevel 65 on its side which leads in the direction of arrow 6 during opening movements. During opening movements of the slider 53, the run-up slope 65 causes the pivot unit 61 to be deflected with a counterclockwise movement about a pivot axis 63. In addition, the locking device 58 according to FIG Figure 5 a switchable electromagnet 16 which, in the activated state, fixes a two-armed lever 18 on a holding arm 21 and thereby releasably secures a stop arm 22 of the two-armed lever 18 in a blocking position.

Claims (10)

  1. Closing device for a door leaf that can be opened with an opening movement and closed with a closing movement,
    • comprising a door closer (5), by means of which the door leaf can be driven in order to perform the closing movement and which has a closer shaft,
    • comprising a closer arm (4) which can be arranged between the door leaf and a fixed door frame and which is connected to the closer shaft of the door closer (5) and on which an arm-side guide element (3, 53) is provided at a distance from the connection to the closer shaft, to which guide element the door leaf can be connected for joint movement,
    • comprising a guide (2), on which the closer arm (4) is guided by means of the arm-side guide element (3, 53) and along which the arm-side guide element (3, 53) can be moved in a guided manner in the event of an opening movement of the door leaf with an opening movement and in the event of a closing movement of the door leaf with a closing movement, and
    • comprising a locking device (8, 58) for the door leaf, provided on the guide (2) for the arm-side guide element (3, 53), which locking device can be switched into a blocking state and into a release state and which, when the door leaf is open, prevents the arm-side guide element (3, 53) and thus the door leaf from performing a closing movement in the blocking state and which allows the arm-side guide element (3, 53) and thus the door leaf to perform a closing movement in the release state,
    • the locking device (8, 58) having a stop (22) for the arm-side guide element (3, 53), which stop is provided as part of a pivot unit (11, 61) that can be pivoted about a pivot axis (13) and can be moved into a release position associated with the release state of the locking device (8, 58) and into a blocking position associated with the blocking state of the locking device (8, 58), in which blocking position the stop (22) for the arm-side guide element (3, 53) is releasably fixed by means of a holding device (16) of the closing device which is switched into a holding state and which can also be switched into a release state,
    • it being possible for the arm-side guide element (3, 53) performing an opening movement to pass the stop (22) for the arm-side guide element (3, 53), by the stop (22) being deflectable from the movement path of the opening movement of the arm-side guide element (3, 53) due to a pivoting movement of the pivot unit (11, 61) caused by the opening movement of the arm-side guide element (3, 53),
    • the stop (22) for the arm-side guide element (3, 53), after it has been passed by the arm-side guide element (3, 53) during the opening movement thereof, protruding into the movement path of the closing movement of the arm-side guide element (3, 53) in the blocking position due to a return pivoting movement of the pivot unit (11, 61),
    • it being possible for the holding device (16) of the stop (22) for the arm-side guide element (3, 53) to be switched into the release state when the stop (22) for the arm-side guide element (3, 53) protrudes into the movement path of the closing movement of the arm-side guide element (3, 53) in the blocking position and
    • it being possible, when the holding device (16) is in the release state, to move the stop (22) for the arm-side guide element (3, 53) from the blocking position into the release position, in which release position said stop allows the arm-side guide element (3, 53) and thus the door leaf to perform a closing movement,
    characterized in that the switchable holding device (16) of the stop (22) for the arm-side guide element (3, 53) is provided as part of the pivot unit (11, 61) and can be pivoted, together with the stop (22) for the arm-side guide element (3, 53), about the pivot axis of the pivot unit (11, 61).
  2. Closing device according to claim 1, characterized in that an activatable and deactivatable holding magnet, preferably a switchable electromagnet, is provided as the holding device (16) of the stop (22) for the arm-side guide element (3, 53).
  3. Closing device according to either of the preceding claims, characterized in that the stop (22) for the arm-side guide element (3, 53) is guided on the pivot unit (11, 61) when moving into the blocking position and/or when moving into the release position.
  4. Closing device according to claim 3, characterized in that the stop (22) for the arm-side guide element (3, 53) is mounted on the pivot unit (11, 61) so as to be pivotable about a stop pivot axis and can be pivoted from the blocking position into the release position with a pivoting movement about the stop pivot axis.
  5. Closing device according to claim 4, characterized in that the stop (22) for the arm-side guide element (3, 53) is formed by a lever (18) which can be pivoted with a pivoting movement from the blocking position into the release position about a lever pivot axis (19) forming the stop pivot axis.
  6. Closing device according to claim 5, characterized in that the lever (18) is designed as a two-armed lever, having a stop arm which forms the stop (22) for the arm-side guide element (3, 53) and which can be pivoted from the blocking position into the release position with a pivoting movement about the lever pivot axis (19) and having a holding arm (21) by means of which the stop arm pivoted into the blocking position can be releasably fixed in the blocking position by means of the holding device (16).
  7. Closing device according to any of the preceding claims, characterized in that the stop (22) for the arm-side guide element (3, 53) can be moved from the blocking position into the release position counter to the action of a restoring force.
  8. Closing device according to any of the preceding claims, characterized in that the pivoting movement of the pivot unit (11, 61) caused by the opening movement of the arm-side guide element (3, 53) can be performed counter to the action of a restoring force.
  9. Closing device according to any of the preceding claims, characterized in that the stop (22) for the arm-side guide element (3, 53) can be moved from the blocking position into the release position by the arm-side guide element (3, 53) when the holding device (16) is in the release state.
  10. Closing device according to claim 9 and claim 5, characterized in that the arm-side guide element (3) applies force to the stop (22) for the arm-side guide element (3) formed by the lever (18) in the direction of the closing movement when the lever (18) is in the blocking position at a radial distance from the lever pivot axis (19) and in that the size of the radial distance of the application of force from the lever pivot axis (19) can be adjusted by means of an adjusting device (28) of the locking device (8).
EP15155713.9A 2015-02-19 2015-02-19 Closing device for a door leaf Active EP3059364B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP15155713.9A EP3059364B1 (en) 2015-02-19 2015-02-19 Closing device for a door leaf

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP15155713.9A EP3059364B1 (en) 2015-02-19 2015-02-19 Closing device for a door leaf

Publications (2)

Publication Number Publication Date
EP3059364A1 EP3059364A1 (en) 2016-08-24
EP3059364B1 true EP3059364B1 (en) 2021-03-31

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EP15155713.9A Active EP3059364B1 (en) 2015-02-19 2015-02-19 Closing device for a door leaf

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Families Citing this family (1)

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Publication number Priority date Publication date Assignee Title
CN113107300A (en) * 2021-05-20 2021-07-13 深圳市泛海三江电子股份有限公司 Automatic limiting unit of electric door closer

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4140658A1 (en) 1991-12-10 1993-06-17 Dorma Gmbh & Co Kg Electromechanical retaining device for door with door closer - has setting screw for adjusting release force of ratchet lever cooperating with sliding block of door closer
DE4440571A1 (en) * 1994-11-12 1996-05-15 Geze Gmbh & Co Door locking system

Non-Patent Citations (1)

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EP3059364A1 (en) 2016-08-24

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