EP0733763B1 - Door closer - Google Patents

Door closer Download PDF

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Publication number
EP0733763B1
EP0733763B1 EP19960104540 EP96104540A EP0733763B1 EP 0733763 B1 EP0733763 B1 EP 0733763B1 EP 19960104540 EP19960104540 EP 19960104540 EP 96104540 A EP96104540 A EP 96104540A EP 0733763 B1 EP0733763 B1 EP 0733763B1
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EP
European Patent Office
Prior art keywords
piston
power accumulator
partial power
accordance
door
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.)
Expired - Lifetime
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EP19960104540
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German (de)
French (fr)
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EP0733763A1 (en
Inventor
Uwe Käser
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Geze GmbH
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Geze GmbH
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Publication date
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Publication of EP0733763A1 publication Critical patent/EP0733763A1/en
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Publication of EP0733763B1 publication Critical patent/EP0733763B1/en
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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
    • E05F3/223—Hydraulic power-locks, e.g. with electrically operated hydraulic valves
    • 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
    • E05F3/102—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 rack-and-pinion transmission between driving shaft and piston within the closer housing
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES E05D AND E05F, RELATING TO CONSTRUCTION ELEMENTS, ELECTRIC CONTROL, POWER SUPPLY, POWER SIGNAL OR TRANSMISSION, USER INTERFACES, MOUNTING OR COUPLING, DETAILS, ACCESSORIES, AUXILIARY OPERATIONS NOT OTHERWISE PROVIDED FOR, APPLICATION THEREOF
    • E05Y2800/00—Details, accessories and auxiliary operations not otherwise provided for
    • E05Y2800/20—Combinations of elements
    • E05Y2800/22—Combinations of elements of not identical elements of the same category, e.g. combinations of not identical springs
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES E05D AND E05F, RELATING TO CONSTRUCTION ELEMENTS, ELECTRIC CONTROL, POWER SUPPLY, POWER SIGNAL OR TRANSMISSION, USER INTERFACES, MOUNTING OR COUPLING, DETAILS, ACCESSORIES, AUXILIARY OPERATIONS NOT OTHERWISE PROVIDED FOR, APPLICATION THEREOF
    • E05Y2900/00—Application of doors, windows, wings or fittings thereof
    • E05Y2900/10—Application of doors, windows, wings or fittings thereof for buildings or parts thereof
    • E05Y2900/13—Type of wing
    • E05Y2900/132—Doors

Definitions

  • the invention relates to a door closer with the features of the preamble of claim 1.
  • a door closer of the type mentioned, one made of two closer springs Has composite energy storage, of which the first partial energy storage serves to close during normal operation and the second energy storage is only switched on when required, is from DE-A-42 37 179 known. It is a hydraulic door closer with two closer springs, only the weaker one in normal operation Closer spring is effective and the stronger closer spring via an electric Locking device is determined and only in an emergency via a Fire alarm, fire alarm or the like is switched on. this means but that when wind pressure or another obstacle occurs in the Closing path of the door a complete closing is not guaranteed as long as the electrical locking device is switched on.
  • DE-A-28 44 302 and DE-A-27 51 859 are so-called free swing closers known. They are hydraulic door closers, whose closer spring is maintained in a prestressed state during normal operation and only in an emergency, e.g. B. in the event of a fire. These door closers only work in the emergency in question. There is no locking effect in normal operation available.
  • DE-A-32 34 319 and DE-C-34 23 242 are so-called servo door closers known. It is a hydraulic door closer with a closer spring and an electric motor to open the closer spring preload. Through the electromotive preloading of the closer spring the opening resistance of the door is eliminated when walking manually or at least reduced. The closing process then takes place automatically as with a conventional hydraulic door closer under the action of the closer spring. With each opening process, the closer spring must be electromotive again be biased to maintain the servo effect.
  • the invention has for its object a door closer of the aforementioned Type to develop, the low opening resistance in normal operation and ensures that the door closes completely.
  • Timing is a simple and inexpensive control of the discharge of the second partial energy storage possible, with the time-controlled discharge the second partial energy store additional energy to close the door is reliably made available.
  • the discharge of the second partial energy store can also via a sensor device monitoring the closing process are controlled, e.g. B. via a facility that determines whether the Closing movement is interrupted before reaching the closed position.
  • the sensor device detects z. B. current operating data of the door closer or Door, e.g. B. the operating pressure in a piston-cylinder system in the door closer or the speed of movement or the direction of movement of the door or Door positions or changes from this data.
  • the second partial energy store represents a reserve energy store the timing element or the sensor device ensures that the second The partial energy storage system automatically takes effect for the safe closing of the door, if the door is in the closed position under the effect of the first partial energy store not reached.
  • the second partial energy store works with a controllable blocking device together.
  • the blocking device or an actuator of the blocking device is controlled via the timer or the sensor device.
  • the Blocking device blocks the second partial energy storage hydraulic.
  • the timer is preferably adjustable or programmable.
  • the timer can be arranged in an overflow device in a piston-cylinder device be and by the flow resistance of the overflow device be determined.
  • the overflow device can discharge the second Control partial energy storage.
  • the partial energy stores are connected in series in a cylinder that is tightly connected Pistons formed.
  • a flow valve can serve, preferably an adjustable one Flow valve.
  • an overflow channel or an overflow groove can also be used be arranged in the cylinder or in the piston.
  • different resistance are switched or different Overflow devices with different resistance successively effective be, e.g. B. by successively an overflow groove as a short-circuit groove, then an overflow channel with adjustable flow valve and finally then again an overflow groove becomes effective as a short-circuit groove; instead of the short-circuit grooves can also be provided for short-circuit channels.
  • the second partial energy store can discharge one another following discharge phases of different discharge speeds having. It can be realized that the time-delayed discharge of the second partial energy storage z. B. is initially very slow and if after a certain time the door has not yet reached its end position, then the discharge speed is increased and thus the second partial energy store contributes to the closing in this phase.
  • a first phase in which the second partial energy storage serves to provide a strong force to the initial to provide rapid acceleration of the door when closing
  • a second phase in which it is discharged relatively slowly and little to Closing contributes and in the event that the door after a certain time Has not yet reached the closed position
  • a third phase expires, in which the second Partial energy storage is quickly discharged and the door closes.
  • Closer springs are provided, preferably helical compression springs.
  • the springs can be hydraulic in the cylinder Piston-cylinder device can be arranged and with the tightly guided in the cylinder Interact pistons.
  • the door closing mechanism shown in FIGS. 1 to 3 has a housing 1 on, in which there is a hydraulically damped in a cylindrical bore Piston 2, an auxiliary piston 22 and a spring arrangement 3 are located.
  • the piston 2 has a closer shaft 4 which is rotatably mounted in the housing 1 geared, in the case shown connected via a pinion.
  • the Pinion consists of a rotatably connected to the closer shaft 4 Pinion 4a and a piston-fixed rack 2a.
  • the piston 2 is moved to the right.
  • the door closes it moves in the opposite direction, i.e. the pinion 4a or the closer shaft 4 rotates clockwise and the piston 2 is moved to the left.
  • the closing spring device 3 consists of a closing spring 3c and two reserve closing springs 3a, 3b.
  • the springs 3a, 3b, 3c are compression springs. It deals concentrically arranged helical compression springs.
  • the closing spring 3c supports itself with its left end directly on the right end of the piston 2 and with its right end on an auxiliary piston 22.
  • the auxiliary piston 22 is received in the cylinder space to the right of the piston 1 and also guided as a hydraulic piston in the cylinder space.
  • the reserve closing springs 3a, 3b are each supported with their left end on the Auxiliary piston 22 and with its right end on the right front end of the housing 1 from a housing cover 1r screwed in there.
  • the auxiliary piston 22 is cup-shaped and consists of a tubular Piston shirt 22a and a piston crown 22b.
  • Piston shirt and piston crown can consist of one part ( Figures 1 to 4) or as e.g. in figure 5 and 6 shown, from 2 parts, the pressure-tight, for. B. by an adhesive or welded connection.
  • the diameter of the piston skirt 22a on the piston bottom side End of the piston 22 are made less than in the area in which the piston skirt takes over the axial guidance in the piston.
  • the spring elements 3 together with the To arrange auxiliary piston 22 In the variant shown in Figure 1 to 3 the inner reserve closing spring 3a is housed concentrically inside the piston. The left end of the spring 3a is supported against the piston crown 22b. It protrudes from the piston to the right and supports itself with her right End at the housing cover 1r.
  • the second reserve closing spring is concentric with spring 3a 3b arranged. It supports itself with its left end against the End face of the piston shirt 22a, with its right end, it is supported against the housing cover 1r.
  • the guidance of the auxiliary piston 22 in the cylinder happens via the piston skirt 22a, the left end of which forms the collar 22c.
  • the outer diameter of the piston tapers to the left of the collar 22c 22 to the piston outer jacket 22d.
  • the closing spring 3c Concentric to the piston outer jacket 22d, the closing spring 3c is arranged.
  • the spring 3c is supported with her right end against the collar 22c, with its left end against the right End face of the piston 2.
  • the sealing element is located in the piston skirt 22a 23, the hydraulic space 32a opposite the hydraulic space 32b seals.
  • FIGS. 4 to 6 Another variant for the arrangement of the spring elements 3 and the auxiliary piston 22 is shown in Figures 4 to 6:
  • the auxiliary piston 22 is compared to Figure 1 to 3 rotated by 180 ° so that the piston crown 22b points to the right.
  • the concentric Reserve springs 3a and 3b support each other with their left ends the piston crown, with its right ends against the housing cover 1r.
  • the closing spring 3c is concentric in the interior of the auxiliary piston 22 attached to this. Its right end is supported from the inside against the piston crown 22b, its left end against the right face of the piston 2.
  • This Arrangement offers the advantage over the arrangement in FIGS. 1 to 3 that the sealing element 23 arranged in the piston skirt 22a only over a cylinder surface is moved, which do not come into contact with the closing spring 3c can.
  • the closing spring 3c could damage the cylinder wall surface in FIGS. 1 to 3 and thus impair the functionality of the sealing element 23.
  • the cylinder interior and the interior of the pistons 2 and 22 are filled with hydraulic oil ( Figures 1 to 6).
  • the piston 2 has a sealing element 2d (preferably made of elastomer material) and divides the cylinder space into a hydraulic space 31 to the left of the sealing element 2d and a hydraulic space 32 to the right of the sealing element.
  • the hydraulic space 32 is in turn divided by the sealing element 23 (preferably made of elastomer material) into a space 32a, which receives the closing spring 3c, and a space 32b, which receives the reserve springs 3a and 3b.
  • the hydraulic chamber 31 is connected to the hydraulic chamber 32 via hydraulic channels 36 (FIG. 8) which contain flow valves for regulating the closing and opening speed, as is known in conventional door closers.
  • a spring-loaded check valve is in the left end face of the piston 2 2b arranged, which opens during the opening movement when the Piston 2 is moved to the right in the illustration in the figures.
  • a pressure relief valve 2c in the piston 2 arranged.
  • the sealing element 23 can either, as shown in Figures 1 to 4, in the piston skirt 22a or, as shown in FIG. 5, to a suitable one Place in the cylinder bore.
  • An overflow channel 33 is provided for hydraulic control of the auxiliary piston 22 formed which connects the hydraulic spaces 32a and 32b.
  • the overflow channel contains a throttle, preferably an adjustable regulating valve 33a, with which is the flow rate of the hydraulic fluid through the channel and thus the speed of movement of the auxiliary piston can be adjusted can.
  • a shut-off valve 33b in the overflow channel is closed when the Door has reached its end position during the closing process.
  • a spring-loaded check valve 24 is provided, which is for overflowing the hydraulic fluid from room 32b opens into space 32a when the auxiliary piston 22 is moved to the right.
  • the door closer shown works as follows. The door is opened by Hand opened. The closer shaft rotates counterclockwise with the pinion 4a and the piston 2 is forced to the right against the action of Closing spring device 3 moved. The initial position in Figure 1 of the auxiliary piston 22 abutting the piston 1 is carried to the right and compresses the reserve closing springs 3a, 3b. The one in the biased position built-in closing spring 3c remains in its pretensioned position.
  • the check valve opens 24, so that the hydraulic oil displaced by the piston movement can flow into space 32b into space 32a.
  • the piston 2 and the auxiliary piston 22 reach each the right end position, in which the reserve closing springs 3a, 3b are maximally compressed are.
  • the closing process then takes place under the action of the closing spring device 3 automatically.
  • the door should move quickly and with greater force be accelerated.
  • This high-speed phase I lasts e.g. 2 seconds.
  • the hydraulic space 32b with the hydraulic space 32a is through the groove 37a connected ( Figure 7), which causes a hydraulic short circuit.
  • This allows the hydraulic fluid to flow from space 32b into space 32a and the reserve closing springs 3a, 3b move the auxiliary piston with a large one Force left.
  • the movement of the auxiliary piston is via the closing spring 3c transferred to the main piston; at the same time the closing spring presses the Main piston also to the left.
  • the auxiliary piston 22 moves in one Slow-running phase II in accordance with the setting of the throttle valve 33 the force of the reserve closing springs 3a, 3b very slowly to the left.
  • the sealing element 23 in the auxiliary piston 22 is located on the web between the groove 37a and the groove 37b. The hydraulic fluid displaced by the movement of the auxiliary piston 22 can now only through the overflow channel 33 from the hydraulic room 32b get into the hydraulic space 32a.
  • the piston 2 moves during the slow-running phase of the auxiliary piston 22 essentially under the action of the relatively weak closing spring 3c. This That is, the piston 2 runs before the auxiliary piston accelerated or faster.
  • the speed of movement of the auxiliary piston is in the slow speed phase II damped by the regulating valve 33a located in the overflow channel 33; this speed can be adjusted with the regulating valve.
  • This is e.g. B. set so that the entire slow speed phase II of Auxiliary piston 22 is approx. 25 sec.
  • the shut-off valve 33b is open when the door is open. As soon as the piston 2 its left end position is reached when the door is closed via a corresponding one Mechanism, the shut-off valve 33b in the overflow channel 33 is closed.
  • the auxiliary piston 22 is hereby in its current position and the remaining energy stored in the reserve springs 3a, 3b remains intact. This means that the slow speed phase is usually premature is stopped.
  • FIG Figure 5 Another possibility for controlling the movement of the auxiliary piston 22 is in FIG Figure 5 shown.
  • the sealing element 23 is located on a corresponding one Place in the cylinder bore and the grooves 37a, 37b are in the piston skirt 22a of the auxiliary piston 22 attached.
  • FIG. 8-10 Another way to open and close the flow opening of the Channel 33 is shown in Figures 8-10.
  • the shut-off valve 33b is one seal 35 inserted into the piston 2 (preferably made of elastomer material) available.
  • the piston 2 is guided so that it is not about its longitudinal axis can twist.
  • the seal 35 is attached so that it is in the left End position of the piston 2 with the door closed, the mouth 33c of the overflow channel 33 closes in the hydraulic space 32a. This will Overflow channel 33 between the hydraulic spaces 32b and 32a closed and the auxiliary piston 22 is blocked hydraulically.
  • the seal 35 can additionally supported in its effect by a stored spring element become.
  • the overflow channel 33 can be designed so that the deep hole 36 is closed at a suitable point by a plug 34.
  • a plug 34 In Figure 8 are located on the right of the plug of the overflow channel 33 (as Part of the deep hole), the mouth 33c and the adjustable regulating valve 33a.
  • To the left of the sealing plug 34 is the hydraulic circuit known per se for the piston 2 to control the end stroke and the shutter speed.
  • the overflow channel mouth is closed 33c through the sealing element 2d embedded in the piston 2. The overflow channel mouth 33c is then in the closed position of the piston 2 on the sealing element 2d.
  • the swing energy of the door can then store the already pre-tensioned reserve energy reload, which is simultaneously the opening movement of the door dampened and the user the end of the door opening angle by increased Opening resistance signals.
  • the hydraulic chamber 32 has a particularly high operating pressure (approx. 50 bar) there is a special seal of the drive shaft 4 in the housing 1 required, to prevent leakage of the hydraulic oil from the housing.
  • the closing spring 3c is weaker as the sum of the reserve closing springs 3a, 3b connected in parallel.
  • the closing spring 3c is designed so that during normal operation, if not special Closing resistance, e.g. in the form of wind pressure or obstacles in the There is a closing path, is able to close the door completely, i.e. to move the piston 2 to its left end position before the auxiliary piston 22 has completed its slow-running phase II and therefore before the reserve energy store with the reserve spring 3a, 3b substantially discharged is.
  • a sensor device instead of the time-dependent control of the auxiliary piston 22 is provided with control via a sensor device be the hydraulic locking or deceleration of the auxiliary piston 22nd by driving valve 33a or 33b if the door is not working properly closes.
  • a sensor device can, for. B. designed in this way be that it monitors the pressure in the hydraulic space 31 by the Pressure drop detected when the closing process is interrupted, before the door is fully closed. This pressure drop always occurs when the door is stopped during the closing process.
  • About the pressure drop can e.g. B. a hydraulic control piston operated in a hydraulic Connection system can be arranged, the front and rear connects the hydraulic chambers 31, 32a or 32b formed in the piston 2. The hydraulic The piston can then act on the valve under the effect of the pressure drop Switch 33a or 33b.
  • Sensor devices can also be used to detect the door movement or correspondingly moving components of the door closer during the closing process or a delay or stopping the closing movement before reaching it the end position.
  • the closing spring device and the reserve spring device can each be made of be composed of a different number of springs.

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Description

Die Erfindung betrifft einen Türschließer mit den Merkmalen des Oberbegriffs des Patentanspruchs 1.The invention relates to a door closer with the features of the preamble of claim 1.

Herkömmliche hydraulische oder pneumatische Türschließer sind als Bodentürschließer z. B. aus DE-A-25 35 244 oder als obenliegende Türschließer z. B. aus DE-A-28 19 334 bekannt. Diese Türschließer weisen als Energiespeicher eine Schließerfeder auf. Nachteilig dabei ist, daß beim Öffnen der Tür jeweils die Schließerfeder entgegenwirkt und daher zum Öffnen erhöhter Kraftaufwand erforderlich ist. Hinzu kommt, daß in der Praxis häufig relativ starke Schließerfedern erforderlich sind, um im Notfall ein sicheres Schließen der Tür sicherzustellen, z. B. bei Feuerschutztüren. Conventional hydraulic or pneumatic door closers are used as floor closers e.g. B. from DE-A-25 35 244 or as overhead door closers z. B. known from DE-A-28 19 334. These door closers point as energy stores a closer spring. The disadvantage here is that each time the door is opened the closer spring counteracts and therefore to open increased effort is required. In addition, in practice there are often relatively strong closer springs are required to ensure that the door can be securely closed in an emergency, e.g. B. with fire doors.

Ein Türschließer der eingangs genannten Art, der einen aus zwei Schließerfedern zusammengesetzten Energiespeicher aufweist, von denen der erste Teilenergiespeicher zum Schließen beim Normalbetrieb dient und der zweite Energiespeicher lediglich bei Bedarf zugeschaltet wird, ist aus der DE-A-42 37 179 bekannt. Es handelt sich um einen hydraulischen Türschließer mit zwei Schließerfedern, wobei im Normalbetrieb lediglich die schwächere Schließerfeder wirksam ist und die stärkere Schließerfeder über eine elektrische Arretiervorrichtung festgestellt wird und lediglich im Notfall über einen Feuermelder, Brandmelder oder dergleichen zugeschaltet wird. Dies bedeutet aber, daß bei Auftreten von Winddruck oder einem anderen Hindernis im Schließweg der Tür ein vollständiges Schließen nicht gewährleistet ist, solange die elektrische Arretiervorrichtung eingeschaltet ist.A door closer of the type mentioned, one made of two closer springs Has composite energy storage, of which the first partial energy storage serves to close during normal operation and the second energy storage is only switched on when required, is from DE-A-42 37 179 known. It is a hydraulic door closer with two closer springs, only the weaker one in normal operation Closer spring is effective and the stronger closer spring via an electric Locking device is determined and only in an emergency via a Fire alarm, fire alarm or the like is switched on. this means but that when wind pressure or another obstacle occurs in the Closing path of the door a complete closing is not guaranteed as long as the electrical locking device is switched on.

Aus DE-A-28 44 302 und DE-A-27 51 859 sind sogenannte Free-Swing-Schließer bekannt. Es handelt sich um hydraulische Türschließer, deren Schließerfeder bei Normalbetrieb in einem vorgespannten Zustand gehalten wird und lediglich im Notfall, z. B. im Brandfall, zugeschaltet wird. Diese Türschließer wirken nur in dem betreffenden Notfall. Im Normalbetrieb ist keine Schließwirkung vorhanden.DE-A-28 44 302 and DE-A-27 51 859 are so-called free swing closers known. They are hydraulic door closers, whose closer spring is maintained in a prestressed state during normal operation and only in an emergency, e.g. B. in the event of a fire. These door closers only work in the emergency in question. There is no locking effect in normal operation available.

Aus der DE-A-32 34 319 und DE-C-34 23 242 sind sogenannte Servo-Türschließer bekannt. Es handelt sich um hydraulische Türschließer mit Schließerfeder und einem elektrischen Motor, um die Schließerfeder beim Öffnen vorzuspannen. Durch das elektromotorische Vorspannen der Schließerfeder wird der Öffnungswiderstand der Tür beim manuellen Begehen eliminiert oder zumindest reduziert. Der Schließvorgang erfolgt sodann selbsttätig wie bei einem herkömmlichen hydraulischen Türschließer unter Wirkung der Schließerfeder. Bei jedem Öffnungsvorgang muß die Schließerfeder erneut elektromotorisch vorgespannt werden, um den Servo-Effekt zu erhalten. DE-A-32 34 319 and DE-C-34 23 242 are so-called servo door closers known. It is a hydraulic door closer with a closer spring and an electric motor to open the closer spring preload. Through the electromotive preloading of the closer spring the opening resistance of the door is eliminated when walking manually or at least reduced. The closing process then takes place automatically as with a conventional hydraulic door closer under the action of the closer spring. With each opening process, the closer spring must be electromotive again be biased to maintain the servo effect.

Nachteilig bei diesen Servo-Türschließern ist, daß also Fremdenergie erforderlich ist und der Aufbau relativ komplex ist.A disadvantage of these servo door closers is that external energy is required is and the structure is relatively complex.

Der Erfindung liegt die Aufgabe zugrunde, einen Türschließer der eingangs genannten Art zu entwickeln, der im Normalbetrieb geringen Öffnungswiderstand aufweist und ein vollständiges Schließen der Tür sicherstellt.The invention has for its object a door closer of the aforementioned Type to develop, the low opening resistance in normal operation and ensures that the door closes completely.

Diese Aufgabe wird mit dem Gegenstand des Anspruchs 1 gelöst. Mit dem Zeitglied wird eine einfache und kostengünstige Steuerung der Entladung des zweiten Teilenergiespeichers möglich, wobei mit der zeitgesteuerten Entladung des zweiten Teilenergiespeichers zusätzliche Energie zum Schließen der Tür zuverlässig zur Verfügung gestellt wird. Die Entladung des zweiten Teilenergiespeichers kann auch über eine den Schließvorgang überwachende Sensoreinrichtung gesteuert werden, z. B. über eine Einrichtung, die feststellt, ob die Schließbewegung vor Erreichen der Schließlage unterbrochen wird. Die Sensoreinrichtung erfaßt z. B. aktuelle Betriebsdaten des Türschließers oder der Tür, z. B. den Betriebsdruck in einem Kolben-Zylinder-System im Türschließer oder die Bewegungsgeschwindigkeit oder die Bewegungsrichtung der Tür oder Türstellungen oder Änderungen von diesen Daten.This object is achieved with the subject matter of claim 1. With the Timing is a simple and inexpensive control of the discharge of the second partial energy storage possible, with the time-controlled discharge the second partial energy store additional energy to close the door is reliably made available. The discharge of the second partial energy store can also via a sensor device monitoring the closing process are controlled, e.g. B. via a facility that determines whether the Closing movement is interrupted before reaching the closed position. The sensor device detects z. B. current operating data of the door closer or Door, e.g. B. the operating pressure in a piston-cylinder system in the door closer or the speed of movement or the direction of movement of the door or Door positions or changes from this data.

Der zweite Teilenergiespeicher stellt einen Reserveenergiespeicher dar. Durch das Zeitglied bzw. die Sensorseinrichtung wird sichergestellt, daß der zweite Teilenergiespeicher selbsttätig zum sicheren Schließen der Tür wirksam wird, wenn die Tür unter Wirkung des ersten Teilenergiespeichers die Schließlage nicht erreicht. The second partial energy store represents a reserve energy store the timing element or the sensor device ensures that the second The partial energy storage system automatically takes effect for the safe closing of the door, if the door is in the closed position under the effect of the first partial energy store not reached.

Der zweite Teilenergiespeicher wirkt mit einer steuerbaren Blockiereinrichtung zusammen. Die Blockiereinrichtung bzw. ein Stellglied der Blockiereinrichtung wird über das Zeitglied bzw. die Sensoreinrichtung gesteuert. Die Blockiereinrichtung blockiert den zweiten Teilenergiespeicher hydraulisch.The second partial energy store works with a controllable blocking device together. The blocking device or an actuator of the blocking device is controlled via the timer or the sensor device. The Blocking device blocks the second partial energy storage hydraulic.

Vorzugsweise ist das Zeitglied einstellbar oder programmierbar. Das Zeitglied kann in einer Überströmeinrichtung in einer Kolben-Zylinder-Einrichtung angeordnet sein und durch den Strömungswiderstand der Überströmeinrichtung bestimmt werden. Die Überströmeinrichtung kann die Entladung des zweiten Teilenergiespeichers steuern.The timer is preferably adjustable or programmable. The timer can be arranged in an overflow device in a piston-cylinder device be and by the flow resistance of the overflow device be determined. The overflow device can discharge the second Control partial energy storage.

Die Teilenergiespeicher werden durch in einem Zylinder dicht geführte hintereinandergeschaltete Kolben gebildet. Als Zeitglied der Überströmeinrichtung kann ein Strömungsventil dienen, vorzugsweise ein einstellbares Strömungsventil.The partial energy stores are connected in series in a cylinder that is tightly connected Pistons formed. As a timing element of the overflow device a flow valve can serve, preferably an adjustable one Flow valve.

Zusätzlich oder alternativ kann auch ein Überströmkanal oder eine Überströmnut im Zylinder oder im Kolben angeordnet sein. Abhängig von der Stellung des Kolbens des zweiten Teilenergiespeichers kann in der Überströmeinrichtung unterschiedlicher Widerstand geschaltet werden bzw. unterschiedliche Überströmeinrichtungen mit unterschiedlichem Widerstand nacheinander wirksam werden, z. B. indem nacheinander eine Überströmnut als Kurzschlußnut, dann ein Überströmkanal mit einstellbarem Strömungsventil und schließlich anschließend wieder eine Überströmnut als Kurzschlußnut wirksam wird; anstelle der Kurzschlußnuten können auch Kurzschlußkanäle vorgesehen sein. Additionally or alternatively, an overflow channel or an overflow groove can also be used be arranged in the cylinder or in the piston. Depending on the position of the piston of the second partial energy store can in the overflow device different resistance are switched or different Overflow devices with different resistance successively effective be, e.g. B. by successively an overflow groove as a short-circuit groove, then an overflow channel with adjustable flow valve and finally then again an overflow groove becomes effective as a short-circuit groove; instead of the short-circuit grooves can also be provided for short-circuit channels.

Damit ist es möglich, daß die Entladung des zweiten Teilenergiespeichers aufeinander folgende Entladungsphasen unterschiedlicher Entladungsgeschwindigkeit aufweist. Es kann damit realisiert werden, daß die zeitverzögerte Entladung des zweiten Teilenergiespeichers z. B. zunächst sehr langsam erfolgt und wenn nach einer bestimmten Zeit die Tür noch nicht ihre Endlage erreicht hat, sodann die Entladungsgeschwindigkeit erhöht wird und also der zweite Teilenergiespeicher in dieser Phase verstärkt zum Schließen beiträgt. Es können vorzugsweise drei Phasen nacheinander ablaufen und zwar eine erste Phase, in der der zweite Teilenergiespeicher dazu dient, eine starke Kraft zum anfänglichen schnellen Beschleunigen der Tür beim Schließen zur Verfügung zu stellen, eine zweite Phase, in der er nur relativ langsam entladen wird und wenig zum Schließen beiträgt und für den Fall, daß die Tür nach einer bestimmten Zeit die Schließlage noch nicht erreicht hat, eine dritte Phase abläuft, in der der zweite Teilenergiespeicher schnell entladen wird und die Tür schließt.It is thus possible for the second partial energy store to discharge one another following discharge phases of different discharge speeds having. It can be realized that the time-delayed discharge of the second partial energy storage z. B. is initially very slow and if after a certain time the door has not yet reached its end position, then the discharge speed is increased and thus the second partial energy store contributes to the closing in this phase. It can preferably run three phases in succession, namely a first phase, in which the second partial energy storage serves to provide a strong force to the initial to provide rapid acceleration of the door when closing, a second phase in which it is discharged relatively slowly and little to Closing contributes and in the event that the door after a certain time Has not yet reached the closed position, a third phase expires, in which the second Partial energy storage is quickly discharged and the door closes.

Sinnvollerweise speichert der erste Teilenergiespeicher weniger Energie als der zweite Energiespeicher, der durch die zeitabhängige Steuerung zeitverzögert soweit erforderlich zum Schließen wirksam wird.It makes sense to store the first partial energy storage less energy than that second energy store, which is delayed by the time-dependent control takes effect as necessary to close.

Konstruktiv besonders einfache Lösungen ergeben sich, wenn als Teilenergiespeicher Schließerfedern vorgesehen sind, vorzugsweise Schraubendruckfedern. Die Federn können im Zylinder einer hydraulischen Kolben-Zylinder-Einrichtung angeordnet sein und mit den im Zylinder dichtgeführten Kolben zusammenwirken. Solutions that are particularly simple in terms of design result when there is partial energy storage Closer springs are provided, preferably helical compression springs. The springs can be hydraulic in the cylinder Piston-cylinder device can be arranged and with the tightly guided in the cylinder Interact pistons.

Im nachfolgenden werden Ausführungsbeispiele in Verbindung mit Figuren erläutert. Die Figuren zeigen:

Figur 1
eine schematische Schnittdarstellung eines Türschließers in Betriebsstellung vor dem ersten Schließen bei geschlossener Tür;
Figur 2
eine Figur 1 entsprechende Darstellung, wobei der Türschließer in Normalbetriebsstellung bei geschlossener Tür und bei festgestellter Reserveschließfeder gezeigt ist;
Figur 3
eine Figur 2 entsprechende Darstellung, wobei der Türschließer ebenfalls in Normalbetriebsstellung, jedoch bei nicht vollständig geschlossener Tür und nachlaufender Reserveschließfeder gezeigt ist.
Figur 4
eine Figur 3 entsprechende Darstellung, wobei eine andere Variante der Anordnung von Hilfskolben und Reserveschließfedern gezeigt wird;
Figur 5
eine Figur 1 entsprechende Darstellung mit einer Variante des Hilfskolbens und eines in der Zylinderwand angebrachten Dichtelements;
Figur 6
eine Figur 5 entsprechende Darstellung mit einem im Kolbenhemd angebrachten Dichtelement;
Figur 7
Darstellung der Überströmnuten in der Zylinderwand;
Figur 8
Darstellung der Kolben- und Dämpfungssteuerung;
Figur 9
Schnitt durch Kolben und Gehäuse entlang Linie IX-IX in Figur 8;
Figur 10
Detailansicht von Figur 9.
Exemplary embodiments are explained below in connection with figures. The figures show:
Figure 1
is a schematic sectional view of a door closer in the operating position before the first closing with the door closed;
Figure 2
a representation corresponding to Figure 1, wherein the door closer is shown in the normal operating position with the door closed and with the reserve closing spring locked;
Figure 3
a representation corresponding to Figure 2, wherein the door closer is also shown in the normal operating position, but with the door not fully closed and the trailing reserve closing spring.
Figure 4
a representation corresponding to Figure 3, wherein another variant of the arrangement of auxiliary pistons and reserve closing springs is shown;
Figure 5
a representation corresponding to Figure 1 with a variant of the auxiliary piston and a sealing element mounted in the cylinder wall;
Figure 6
a representation corresponding to Figure 5 with a sealing element mounted in the piston skirt;
Figure 7
Representation of the overflow grooves in the cylinder wall;
Figure 8
Representation of the piston and damping control;
Figure 9
Section through piston and housing along line IX-IX in Figure 8;
Figure 10
Detailed view of Figure 9.

Der in Figur 1 bis 3 dargestellte Türschließmechanismus weist ein Gehäuse 1 auf, in dem sich in einer zylindrischen Bohrung ein hydraulisch bedämpfter Kolben 2, ein Hilfskolben 22 und eine Federanordnung 3 befinden.The door closing mechanism shown in FIGS. 1 to 3 has a housing 1 on, in which there is a hydraulically damped in a cylindrical bore Piston 2, an auxiliary piston 22 and a spring arrangement 3 are located.

Der Kolben 2 ist mit einer im Gehäuse 1 drehbar gelagerten Schließerwelle 4 getriebemäßig, im dargestellten Fall über einen Zahntrieb, verbunden. Der Zahntrieb besteht aus einem mit der Schließerwelle 4 drehfest verbundenen Ritzel 4a und einer kolbenfesten Zahnstange 2a. Bei der Öffnungsbewegung der Tür dreht das Ritzel 4a bzw. die Schließerwelle 4 in der Darstellung in den Figuren in Gegenuhrzeigersinn. Dabei wird der Kolben 2 nach rechts bewegt. Bei der Schließbewegung der Tür erfolgt die Bewegung in umgekehrter Richtung, d.h. das Ritzel 4a bzw. die Schließerwelle 4 dreht in Uhrzeigersinn und der Kolben 2 wird nach links bewegt.The piston 2 has a closer shaft 4 which is rotatably mounted in the housing 1 geared, in the case shown connected via a pinion. The Pinion consists of a rotatably connected to the closer shaft 4 Pinion 4a and a piston-fixed rack 2a. During the opening movement the door rotates the pinion 4a or the closer shaft 4 in the illustration in the Figures in a counterclockwise direction. The piston 2 is moved to the right. When the door closes, it moves in the opposite direction, i.e. the pinion 4a or the closer shaft 4 rotates clockwise and the piston 2 is moved to the left.

Die Schließfedereinrichtung 3 besteht aus einer Schließfeder 3c und zwei Reserveschließfedern 3a, 3b. Die Federn 3a, 3b, 3c sind Druckfedern. Es handelt sich um konzentrisch angeordnete Schraubendruckfedern. Die Schließfeder 3c stützt sich mit ihrem linken Ende unmittelbar an der rechten Stirnseite des Kolbens 2 und mit ihrem rechten Ende an einem Hilfskolben 22 ab. Der Hilfskolben 22 ist in dem Zylinderraum rechts vom Kolben 1 aufgenommen und ebenfalls als Hydraulikkolben in dem Zylinderraum verschiebbar geführt. Die Reserveschließfedern 3a, 3b stützen sich jeweils mit ihrem linken Ende an dem Hilfskolben 22 und mit ihrem rechten Ende am rechten Stirnende des Gehäuses 1 an einem dort eingeschraubten Gehäusedeckel 1r ab. The closing spring device 3 consists of a closing spring 3c and two reserve closing springs 3a, 3b. The springs 3a, 3b, 3c are compression springs. It deals concentrically arranged helical compression springs. The closing spring 3c supports itself with its left end directly on the right end of the piston 2 and with its right end on an auxiliary piston 22. The auxiliary piston 22 is received in the cylinder space to the right of the piston 1 and also guided as a hydraulic piston in the cylinder space. The reserve closing springs 3a, 3b are each supported with their left end on the Auxiliary piston 22 and with its right end on the right front end of the housing 1 from a housing cover 1r screwed in there.

Der Hilfskolben 22 ist topfförmig ausgebildet und besteht aus einem rohrförmiges Kolbenhemd 22a sowie einem Kolbenboden 22b. Kolbenhemd und Kolbenboden können aus einem Teil bestehen (Figur 1 bis 4) oder wie z.B. in Figur 5 und 6 dargestellt, aus 2 Teilen, die druckdicht, z. B. durch eine Klebe- oder Schweißverbindung, miteinander verbunden sind. Zur Bearbeitungsvereinfachung kann der Durchmesser des Kolbenhemds 22a am kolbenbodenseitigen Ende des Kolbens 22 geringer ausgeführt werden als in dem Bereich, in dem das Kolbenhemd die axiale Führung im Kolben übernimmt.The auxiliary piston 22 is cup-shaped and consists of a tubular Piston shirt 22a and a piston crown 22b. Piston shirt and piston crown can consist of one part (Figures 1 to 4) or as e.g. in figure 5 and 6 shown, from 2 parts, the pressure-tight, for. B. by an adhesive or welded connection. To simplify processing the diameter of the piston skirt 22a on the piston bottom side End of the piston 22 are made less than in the area in which the piston skirt takes over the axial guidance in the piston.

Es bestehen mehrere Möglichkeiten, die Federelemente 3 zusammen mit dem Hilfskolben 22 anzuordnen: In der in Figur 1 bis 3 dargestellten Variante wird die innere Reserveschließfeder 3a im Kolbeninneren konzentrisch aufgenommen. Das linke Ende der Feder 3a stützt sich gegen den Kolbenboden 22b ab. Sie ragt aus dem Kolben nach rechts heraus und stützt sich mit ihrem rechten Ende am Gehäusedeckel 1r ab. Konzentrisch zur Feder 3a ist die zweite Reserveschließfeder 3b angeordnet. Sie stützt sich mit ihrem linken Ende gegen die Endfläche des Kolbenhemds 22a ab, mit ihrem rechten Ende stützt sie sich gegen den Gehäusedeckel 1r ab. Die Führung des Hilfskolbens 22 im Zylinder geschieht über das Kolbenhemd 22a, dessen linkes Ende der Kragen 22c bildet. Links des Kragens 22c verjüngt sich der Außendurchmesser des Kolbens 22 zum Kolbenaußenmantel 22d. Konzentrisch zum Kolbenaußenmantel 22d ist die Schließfeder 3c angeordnet. Die Feder 3c stützt sich mit ihrem rechten Ende gegen den Kragen 22c ab, mit ihrem linken Ende gegen die rechte Stirnfläche des Kolbens 2. Im Kolbenhemd 22a befindet sich das Dichtungselement 23, das den Hydraulikraum 32a gegenüber dem Hydraulikraum 32b abdichtet. There are several options, the spring elements 3 together with the To arrange auxiliary piston 22: In the variant shown in Figure 1 to 3 the inner reserve closing spring 3a is housed concentrically inside the piston. The left end of the spring 3a is supported against the piston crown 22b. It protrudes from the piston to the right and supports itself with her right End at the housing cover 1r. The second reserve closing spring is concentric with spring 3a 3b arranged. It supports itself with its left end against the End face of the piston shirt 22a, with its right end, it is supported against the housing cover 1r. The guidance of the auxiliary piston 22 in the cylinder happens via the piston skirt 22a, the left end of which forms the collar 22c. The outer diameter of the piston tapers to the left of the collar 22c 22 to the piston outer jacket 22d. Concentric to the piston outer jacket 22d, the closing spring 3c is arranged. The spring 3c is supported with her right end against the collar 22c, with its left end against the right End face of the piston 2. The sealing element is located in the piston skirt 22a 23, the hydraulic space 32a opposite the hydraulic space 32b seals.

Eine weitere Variante zur Anordnung der Federelemente 3 und des Hilfskolbens 22 ist in Figur 4 bis 6 dargestellt: Der Hilfskolben 22 ist gegenüber Figur 1 bis 3 um 180° gedreht, so daß der Kolbenboden 22b nach rechts zeigt. Die konzentrischen Reservefedern 3a und 3b stützen sich mit ihren linken Enden gegen den Kolbenboden ab, mit ihren rechten Enden gegen den Gehäusedekkel 1r. Die Schließfeder 3c ist im Inneren des Hilfskolbens 22 konzentrisch zu diesem angebracht. Ihr rechtes Ende stützt sich von innen gegen den Kolbenboden 22b, ihr linkes Ende gegen die rechte Stirnfläche des Kolbens 2. Diese Anordnung bietet gegenüber der Anordnung in Figur 1 bis 3 den Vorteil, daß das im Kolbenhemd 22a angeordnete Dichtelement 23 nur über eine Zylinderfläche bewegt wird, die nicht mit der Schließfeder 3c in Berührung kommen kann. Die Schließfeder 3c könnte in Figur 1 bis 3 die Zylinderwandfläche beschädigen und so die Funktionsfähigkeit des Dichtelements 23 beeinträchtigen.Another variant for the arrangement of the spring elements 3 and the auxiliary piston 22 is shown in Figures 4 to 6: The auxiliary piston 22 is compared to Figure 1 to 3 rotated by 180 ° so that the piston crown 22b points to the right. The concentric Reserve springs 3a and 3b support each other with their left ends the piston crown, with its right ends against the housing cover 1r. The closing spring 3c is concentric in the interior of the auxiliary piston 22 attached to this. Its right end is supported from the inside against the piston crown 22b, its left end against the right face of the piston 2. This Arrangement offers the advantage over the arrangement in FIGS. 1 to 3 that the sealing element 23 arranged in the piston skirt 22a only over a cylinder surface is moved, which do not come into contact with the closing spring 3c can. The closing spring 3c could damage the cylinder wall surface in FIGS. 1 to 3 and thus impair the functionality of the sealing element 23.

Der Zylinderinnenraum und das Innere der Kolben 2 und 22 sind mit Hydrauliköl gefüllt (Figur 1 bis 6). Der Kolben 2 weist ein Dichtelement 2d (vorzugsweise aus Elastomermaterial) auf und unterteilt den Zylinderraum in einen Hydraulikraum 31 links des Dichtelemts 2d und einen Hydraulikraum 32 rechts des Dichtelements. Der Hydraulikraum 32 wird durch das Dichtelement 23 (vorzugsweise aus Elastomermaterial) seinerseits unterteilt in einen Raum 32a, der die Schließfeder 3c aufnimmt, und einen Raum 32b, der die Reservefedern 3a und 3b aufnimmt. In den Hydraulikräumen herrschen in Abhängigkeit von den verwendeten Federn 3 unterschiedliche Drücke, wobei gilt: Druck p1 (in Raum 31) > Druck p2 (in Raum 32a) > Druck p3 (in Raum 32b). Der Hydraulikraum 31 ist mit dem Hydraulikraum 32 über Hydraulikkanäle 36 (Figur 8) verbunden, die Strömungsventile zur Regulierung der Schließ- und Öffnungsgeschwindigkeit enthalten, wie dies bei herkömmlichen Türschließern bekannt ist. The cylinder interior and the interior of the pistons 2 and 22 are filled with hydraulic oil (Figures 1 to 6). The piston 2 has a sealing element 2d (preferably made of elastomer material) and divides the cylinder space into a hydraulic space 31 to the left of the sealing element 2d and a hydraulic space 32 to the right of the sealing element. The hydraulic space 32 is in turn divided by the sealing element 23 (preferably made of elastomer material) into a space 32a, which receives the closing spring 3c, and a space 32b, which receives the reserve springs 3a and 3b. There are 3 different pressures in the hydraulic rooms depending on the springs used, whereby the following applies: pressure p 1 (in room 31)> pressure p 2 (in room 32a)> pressure p 3 (in room 32b). The hydraulic chamber 31 is connected to the hydraulic chamber 32 via hydraulic channels 36 (FIG. 8) which contain flow valves for regulating the closing and opening speed, as is known in conventional door closers.

Ferner ist in der linken Stirnfläche des Kolbens 2 ein federbelastetes Rückschlagventil 2b angeordnet, das bei der Öffnungsbewegung öffnet, wenn der Kolben 2 in der Darstellung in den Figuren nach rechts bewegt wird. Außerdem ist, wie ebenfalls an sich bekannt, im Kolben 2 ein Überdruckventil 2c angeordnet.Furthermore, a spring-loaded check valve is in the left end face of the piston 2 2b arranged, which opens during the opening movement when the Piston 2 is moved to the right in the illustration in the figures. Moreover is, as is also known per se, a pressure relief valve 2c in the piston 2 arranged.

Das Dichtelement 23 kann entweder, wie in Figur 1 bis 4 gezeigt, im Kolbenhemd 22a angebracht sein oder, wie in Figur 5 dargestellt, an einer geeigneten Stelle in der Zylinderbohrung.The sealing element 23 can either, as shown in Figures 1 to 4, in the piston skirt 22a or, as shown in FIG. 5, to a suitable one Place in the cylinder bore.

Zur hydraulischen Steuerung des Hilfskolbens 22 ist ein Überströmkanal 33 ausgebildet, der die Hydraulikräume 32a und 32b verbindet. Der Überströmkanal enthält eine Drossel, vorzugsweise ein einstellbares Regulierventil 33a, mit dem die Durchströmgeschwindigkeit der Hydraulikflüssigkeit durch den Kanal und damit die Bewegungsgeschwindigkeit des Hilfskolbens eingestellt werden kann. Ein Absperrventil 33b im Überströmkanal wird geschlossen, wenn die Tür beim Schließvorgang ihre Endstellung erreicht hat. Außerdem ist im Kolbenboden 22b des Hilfskolbens ein federbelastetes Rückschlagventil 24 vorgesehen, welches sich zum Überströmen der Hydraulikflüssigkeit aus Raum 32b in den Raum 32a öffnet, wenn der Hilfskolben 22 nach rechts bewegt wird.An overflow channel 33 is provided for hydraulic control of the auxiliary piston 22 formed which connects the hydraulic spaces 32a and 32b. The overflow channel contains a throttle, preferably an adjustable regulating valve 33a, with which is the flow rate of the hydraulic fluid through the channel and thus the speed of movement of the auxiliary piston can be adjusted can. A shut-off valve 33b in the overflow channel is closed when the Door has reached its end position during the closing process. It is also in the piston crown 22b of the auxiliary piston, a spring-loaded check valve 24 is provided, which is for overflowing the hydraulic fluid from room 32b opens into space 32a when the auxiliary piston 22 is moved to the right.

Der dargestellte Türschließer funktioniert folgendermaßen. Die Tür wird von Hand geöffnet. Dabei dreht die Schließerwelle mit dem Ritzel 4a in Gegenuhrzeigersinn und der Kolben 2 wird zwangsweise nach rechts gegen Wirkung der Schließfedereinrichtung 3 verschoben. Hierbei wird aus der Anfangsstellung in Figur 1 der am Kolben 1 anliegende Hilfskolben 22 nach rechts mitgenommen und die Reserveschließfedern 3a, 3b komprimiert. Die in vorgespannter Stellung eingebaute Schließfeder 3c verbleibt dabei in ihrer vorgespannten Lage. The door closer shown works as follows. The door is opened by Hand opened. The closer shaft rotates counterclockwise with the pinion 4a and the piston 2 is forced to the right against the action of Closing spring device 3 moved. The initial position in Figure 1 of the auxiliary piston 22 abutting the piston 1 is carried to the right and compresses the reserve closing springs 3a, 3b. The one in the biased position built-in closing spring 3c remains in its pretensioned position.

Bei der Verschiebung des Hilfskolbens 22 nach rechts öffnet das Rückschlagventil 24, so daß das durch die Kolbenbewegung verdrängte Hydrauliköl aus dem Raum 32b in den Raum 32a überströmen kann. Wenn die Tür vollständig geöffnet ist, z.B. 180°, erreichen der Kolben 2 und der Hilfskolben 22 jeweils die rechte Endstellung, in der die Reserveschließfedern 3a, 3b maximal komprimiert sind.When the auxiliary piston 22 is shifted to the right, the check valve opens 24, so that the hydraulic oil displaced by the piston movement can flow into space 32b into space 32a. When the door is completely is open, e.g. 180 °, the piston 2 and the auxiliary piston 22 reach each the right end position, in which the reserve closing springs 3a, 3b are maximally compressed are.

Der Schließvorgang erfolgt sodann unter der Wirkung der Schließfedereinrichtung 3 selbsttätig. Zu Beginn des Schließvorgangs (z. B. bei einer Winkelstellung der Tür zwischen 180° und 80°) soll die Tür zügig und mit größerer Kraft beschleunigt werden. Diese Schnellaufphase I dauert z.B. 2 Sekunden. Während dieser Phase ist der Hydraulikraum 32b mit dem Hydraulikraum 32a durch die Nut 37a verbunden (Figur 7), die einen hydraulischen Kurzschluß bewirkt. Hierdurch kann die Hydraulikflüssigkeit vom Raum 32b in den Raum 32a strömen und die Reserveschließfedern 3a, 3b bewegen den Hilfskolben mit großer Kraft nach links. Die Bewegung des Hilfskolbens wird über die Schließfeder 3c auf den Hauptkolben übertragen; gleichzeitig drückt die Schließfeder den Hauptkolben ebenfalls nach links. Durch die Bewegung des Kolbens 2 wird die Schließerwelle 4 gedreht.The closing process then takes place under the action of the closing spring device 3 automatically. At the beginning of the closing process (e.g. with an angular position the door between 180 ° and 80 °) the door should move quickly and with greater force be accelerated. This high-speed phase I lasts e.g. 2 seconds. While In this phase, the hydraulic space 32b with the hydraulic space 32a is through the groove 37a connected (Figure 7), which causes a hydraulic short circuit. This allows the hydraulic fluid to flow from space 32b into space 32a and the reserve closing springs 3a, 3b move the auxiliary piston with a large one Force left. The movement of the auxiliary piston is via the closing spring 3c transferred to the main piston; at the same time the closing spring presses the Main piston also to the left. The movement of the piston 2 NO shaft 4 rotated.

Während der Langsamlaufphase des Hilfskolbens bzw. der Tür (z. B. bei einer Winkelstellung zwischen 80° und 45°) bewegt sich der Hilfskolben 22 in einer Langsamlaufphase II entsprechend der Einstellung des Drosselventils 33 durch die Kraft der Reserveschließfedern 3a, 3b sehr langsam nach links. Das Dichtelement 23 im Hilfskolben 22 befindet sich auf dem Steg zwischen der Nut 37a und der Nut 37b. Die durch die Bewegung des Hilfskolbens 22 verdrängte Hydraulikflüssigkeit kann jetzt nur durch den Überströmkanal 33 vom Hydraulikraum 32b in den Hydraulikraum 32a gelangen. During the slow speed phase of the auxiliary piston or the door (e.g. with a Angular position between 80 ° and 45 °), the auxiliary piston 22 moves in one Slow-running phase II in accordance with the setting of the throttle valve 33 the force of the reserve closing springs 3a, 3b very slowly to the left. The sealing element 23 in the auxiliary piston 22 is located on the web between the groove 37a and the groove 37b. The hydraulic fluid displaced by the movement of the auxiliary piston 22 can now only through the overflow channel 33 from the hydraulic room 32b get into the hydraulic space 32a.

Der Kolben 2 bewegt sich während der Langsamlaufphase des Hilfskolbens 22 im wesentlichen unter Wirkung der relativ schwachen Schließfeder 3c. Dies heißt, der Kolben 2 läuft vor dem Hilfskolben beschleunigt bzw. schneller vor.The piston 2 moves during the slow-running phase of the auxiliary piston 22 essentially under the action of the relatively weak closing spring 3c. This That is, the piston 2 runs before the auxiliary piston accelerated or faster.

Die Bewegungsgeschwindigkeit des Hilfskolbens wird in der Langsamlaufphase II durch das sich im Überströmkanal 33 befindende Regulierventil 33a gedämpft; diese Geschwindigkeit kann mit dem Regulierventil eingestellt werden. Dieses wird z. B. so eingestellt, daß die gesamte Langsamlaufphase II des Hilfskolbens 22 ca. 25 sec beträgt.The speed of movement of the auxiliary piston is in the slow speed phase II damped by the regulating valve 33a located in the overflow channel 33; this speed can be adjusted with the regulating valve. This is e.g. B. set so that the entire slow speed phase II of Auxiliary piston 22 is approx. 25 sec.

Das Absperrventil 33b ist bei geöffneter Tür geöffnet. Sobald der Kolben 2 seine linke Endstellung bei geschlossener Tür erreicht, wird über einen entsprechenden Mechanismus das Absperrventil 33b im Überstömkanal 33 geschlossen. Der Hilfskolben 22 wird hierdurch in seiner momentanen Stellung festgehalten, und die in den Reservefedern 3a, 3b gespeicherte Restenergie bleibt erhalten. Dies bedeutet, daß die Langsamlaufphase in der Regel vorzeitig gestoppt wird.The shut-off valve 33b is open when the door is open. As soon as the piston 2 its left end position is reached when the door is closed via a corresponding one Mechanism, the shut-off valve 33b in the overflow channel 33 is closed. The auxiliary piston 22 is hereby in its current position and the remaining energy stored in the reserve springs 3a, 3b remains intact. This means that the slow speed phase is usually premature is stopped.

Erreicht die Tür die Schließlage nicht, z.B. aufgrund erhöhten Winddrucks, so bleibt der Überströmkanal 33 geöffnet. Der Hilfskolben 22 bewegt sich langsam weiter, z.B. bis zu einer Türwinkelstellung von z.B. 45°, ab der sich das Dichtelement 23 über der Nut 37b befindet. Wie in der Schnellaufphase I entsteht jetzt wieder ein hydraulischer Kurzschluß zwischen den Hydraulikräumen 32b und 32a, und die in den Reservefedern 3a und 3b gespeicherte Restenergie wird zusätzlich zur Energie der Feder 3c zum Schließen der Tür genutzt. In dieser Schnellaufphase III wird gleichzeitig die schwächere Schließfeder 3c komprimiert und es ergibt sich wieder die in Figur 1 dargestellte Ausgangsstellung des Türschließers. If the door does not reach the closed position, e.g. due to increased wind pressure, so the overflow channel 33 remains open. The auxiliary piston 22 moves slowly further, e.g. up to a door angle position of e.g. 45 °, from which the Sealing element 23 is located above the groove 37b. How in the high-speed phase I arises now again a hydraulic short circuit between the hydraulic rooms 32b and 32a, and the residual energy stored in the reserve springs 3a and 3b is used in addition to the energy of the spring 3c to close the door. In this high-speed phase III becomes the weaker closing spring 3c compressed and there is again the starting position shown in Figure 1 of the door closer.

Eine andere Möglichkeit zur Steuerung der Bewegung des Hilfskolbens 22 ist in Figur 5 dargestellt. Hier befindet sich das Dichtelement 23 an einer entsprechenden Stelle in der Zylinderbohrung und die Nuten 37a, 37b sind im Kolbenhemd 22a des Hilfskolbens 22 angebracht.Another possibility for controlling the movement of the auxiliary piston 22 is in FIG Figure 5 shown. Here the sealing element 23 is located on a corresponding one Place in the cylinder bore and the grooves 37a, 37b are in the piston skirt 22a of the auxiliary piston 22 attached.

Eine andere Möglichkeit zum Öffnen und Schließen der Durchflußöffnung des Kanals 33 ist in Figur 8 bis 10 dargestellt. Statt des Absperrventils 33b ist eine in den Kolben 2 eingelassene Dichtung 35 (vorzugsweise aus Elastomermaterial) vorhanden. Der Kolben 2 ist so geführt, daß er sich nicht um seine Längsachse verdrehen kann. Die Dichtung 35 ist so angebracht, daß sie in der linken Endstellung des Kolbens 2 bei geschlossener Tür die Mündung 33c des Überströmkanals 33 in den Hydraulikraum 32a verschließt. Hierdurch wird der Überströmkanal 33 zwischen den Hydraulikräumen 32b und 32a verschlossen und der Hilfskolben 22 wird so hydraulisch blockiert. Die Dichtung 35 kann zusätzlich noch in ihrer Wirkung durch ein hinterlegtes Federelement unterstützt werden.Another way to open and close the flow opening of the Channel 33 is shown in Figures 8-10. Instead of the shut-off valve 33b is one seal 35 inserted into the piston 2 (preferably made of elastomer material) available. The piston 2 is guided so that it is not about its longitudinal axis can twist. The seal 35 is attached so that it is in the left End position of the piston 2 with the door closed, the mouth 33c of the overflow channel 33 closes in the hydraulic space 32a. This will Overflow channel 33 between the hydraulic spaces 32b and 32a closed and the auxiliary piston 22 is blocked hydraulically. The seal 35 can additionally supported in its effect by a stored spring element become.

Der Überströmkanal 33 kann so ausgeführt werden, daß die Tieflochbohrung 36 an geeigneter Stelle durch einen Verschlußstopfen 34 verschlossen wird. In Figur 8 befinden sich rechts des Verschlußstopfens der Überstömkanal 33 (als Teil der Tieflochbohrung), die Mündung 33c und das einstellbare Regulierventil 33a. Links des Verschlußstopfens 34 befindet sich der an sich bekannte Hydraulikkreislauf für den Kolben 2 zur Steuerung des Endschlags und der Verschlußzeit.The overflow channel 33 can be designed so that the deep hole 36 is closed at a suitable point by a plug 34. In Figure 8 are located on the right of the plug of the overflow channel 33 (as Part of the deep hole), the mouth 33c and the adjustable regulating valve 33a. To the left of the sealing plug 34 is the hydraulic circuit known per se for the piston 2 to control the end stroke and the shutter speed.

In einer anderen Ausführung geschieht der Verschluß der Überströmkanalmündung 33c durch das in den Kolben 2 eingebettete Dichtelement 2d. Die Überströmkanalmündung 33c befindet sich dann in der Schließstellung des Kolbens 2 an dem Dichtelement 2d. In another embodiment, the overflow channel mouth is closed 33c through the sealing element 2d embedded in the piston 2. The overflow channel mouth 33c is then in the closed position of the piston 2 on the sealing element 2d.

Für den Fall, daß die Reservefedern 3a, 3b beim Schließen nicht vollständig entladen wurden, sondern wie oben beschrieben beim Schließen hydraulisch blockiert wurden, wirken sie beim nachfolgenden Öffnen als Öffnungsdämpfer auf den letzten Grad Öffnungswinkel der Tür.In the event that the reserve springs 3a, 3b are not completely closed were discharged, but hydraulically when closing as described above have been blocked, they act as an opening damper when subsequently opened to the last degree opening angle of the door.

Die Schwungenergie der Tür kann dann die bereits vorgespannten Reserveenergiespeicher nachladen, was gleichzeitig die Öffnungsbewegung der Tür bedämpft und dem Benutzer das Ende des Türöffnungswinkels durch erhöhten Öffnungswiderstand signalisiert.The swing energy of the door can then store the already pre-tensioned reserve energy reload, which is simultaneously the opening movement of the door dampened and the user the end of the door opening angle by increased Opening resistance signals.

Da im Hydraulikraum 32 ein besonders hoher Betriebsdruck (ca. 50 bar) herrscht, ist eine spezielle Dichtung der Antriebswelle 4 im Gehäuse 1 erforderlich, um eine Leckage des Hydrauliköls aus dem Gehäuse zu verhindern.Since the hydraulic chamber 32 has a particularly high operating pressure (approx. 50 bar) there is a special seal of the drive shaft 4 in the housing 1 required, to prevent leakage of the hydraulic oil from the housing.

Bei einem erneuten Öffnen der Tür muß also nur der durch Spannung der Schließfeder 3c gebildete Öffnungswiderstand überwunden werden. Erst bei fortschreitendem Öffnungswinkel, wenn der Kolben in Anlage an den Hilfskolben 22 kommt, tritt der Öffnungswiderstand der Reserveschließfedern 3a, 3b auf. Dadurch wird eine Öffnungsdämpfung erhalten, die bei großen Türöffnungswinkeln erwünscht ist.When the door is opened again, only the voltage of the Closing spring 3c formed opening resistance can be overcome. Only at; only when progressive opening angle when the piston abuts the auxiliary piston 22 comes, the opening resistance of the reserve closing springs 3a, 3b occurs on. As a result, an opening damping is obtained that at large door opening angles is desired.

Bei dem dargestellten Ausführungsbeispiel ist die Schließfeder 3c schwächer als die Summe der parallel geschalteten Reserveschließfedern 3a, 3b ausgebildet. Die Schließfeder 3c ist so ausgelegt, daß sie bei Normalbetrieb, wenn kein besonderer Schließwiderstand, z.B. in Form von Winddruck oder Hindernissen im Schließweg vorhanden ist, in der Lage ist, die Tür vollständig zu schließen, d.h. den Kolben 2 in seine linke Endlage zu verschieben, bevor der Hilfskolben 22 seine Langsamlaufphase II vollständig durchlaufen hat und also bevor der Reserveenergiespeicher mit der Reservefeder 3a, 3b wesentlich entladen ist.In the illustrated embodiment, the closing spring 3c is weaker as the sum of the reserve closing springs 3a, 3b connected in parallel. The closing spring 3c is designed so that during normal operation, if not special Closing resistance, e.g. in the form of wind pressure or obstacles in the There is a closing path, is able to close the door completely, i.e. to move the piston 2 to its left end position before the auxiliary piston 22 has completed its slow-running phase II and therefore before the reserve energy store with the reserve spring 3a, 3b substantially discharged is.

Es handelt sich also um einen hydraulisch gedämpften Türschließer, der eine relativ schwache Schließerfeder 3c und stärkere Reserveschließerfedern 3a, 3b aufweist, wenn die Tür in einer vorbestimmten Zeit nicht unter Wirkung der Schließerfeder 3c in Schließlage gelangt, werden die Reserveschließerfedern 3a, 3b zum Schließen zugeschaltet. Ihre Zuschaltung wird also über ein Zeitglied gesteuert, was eine einfache und zuverlässige Steuerung darstellt.So it is a hydraulically damped door closer, the one relatively weak closer spring 3c and stronger reserve closer springs 3a, 3b if the door is not in a predetermined time under the effect of Closing spring 3c comes into the closed position, the reserve closer springs 3a, 3b switched on for closing. Your connection will be over a Timer controlled, which is a simple and reliable control.

Bei anderen Ausführungsbeispielen kann anstelle der zeitabhängigen Steuerung des Hilfskolbens 22 eine Steuerung über eine Sensoreinrichtung vorgesehen sein, die die hydraulische Feststellung oder Verzögerung des Hilfskolbens 22 durch Ansteuerung des Ventils 33a oder 33b aufhebt, wenn die Tür nicht ordnungsgemäß schließt. Eine solche Sensoreinrichtung kann z. B. derart ausgebildet sein, daß sie den Druck im Hydraulikraum 31 überwacht, indem sie den Druckabfall erfaßt, der auftritt, wenn der Schließvorgang unterbrochen wird, bevor die Tür in vollständige Schließlage gelangt. Dieser Druckabfall tritt immer auf, wenn die Tür beim Schließvorgang angehalten wird. Über den Druckabfall kann z. B. ein hydraulischer Steuerkolben betätigt werden, der in einem hydraulischen Verbindungssystem angeordnet sein kann, das die vor und hinter dem Kolben 2 gebildeten Hydraulikräume 31, 32a oder 32b verbindet. Der hydraulische Steuerkolben kann dann unter Wirkung des Druckabfalls das Ventil 33a bzw. 33b schalten. In other embodiments, instead of the time-dependent control of the auxiliary piston 22 is provided with control via a sensor device be the hydraulic locking or deceleration of the auxiliary piston 22nd by driving valve 33a or 33b if the door is not working properly closes. Such a sensor device can, for. B. designed in this way be that it monitors the pressure in the hydraulic space 31 by the Pressure drop detected when the closing process is interrupted, before the door is fully closed. This pressure drop always occurs when the door is stopped during the closing process. About the pressure drop can e.g. B. a hydraulic control piston operated in a hydraulic Connection system can be arranged, the front and rear connects the hydraulic chambers 31, 32a or 32b formed in the piston 2. The hydraulic The piston can then act on the valve under the effect of the pressure drop Switch 33a or 33b.

Es können auch Sensoreinrichtungen eingesetzt werden, die die Türbewegung oder entsprechend bewegte Bauteile des Türschließers beim Schließvorgang bzw. eine Verzögerung oder das Stoppen der Schließbewegung vor dem Erreichen der Endlage erfassen. Sensor devices can also be used to detect the door movement or correspondingly moving components of the door closer during the closing process or a delay or stopping the closing movement before reaching it the end position.

Die Schließfedereinrichtung und die Reservefedereinrichtung kann jeweils aus einer unterschiedlichen Zahl von Federn zusammengesetzt sein.The closing spring device and the reserve spring device can each be made of be composed of a different number of springs.

Abweichend von den in den Figuren dargestellten Ausführungsbeispielen können anstelle von Schraubendruckfedern auch andere Federtypen verwendet werden, insbesondere auch Torsionsfedern.Deviating from the exemplary embodiments shown in the figures other types of springs are used instead of helical compression springs are, especially torsion springs.

Anstelle der in den Figuren dargestellten Anordnung und Abstützung der Federn 3a, 3b, 3c kann die Schließfeder 3c einerseits am Kolben 2 und andererseits an dem Ende des Zylinderraums 32b abgestützt sein, an dem auch die Reservefedern 3a, 3b abgestützt sind.Instead of the arrangement and support of the springs shown in the figures 3a, 3b, 3c can the closing spring 3c on the one hand on the piston 2 and on the other at the end of the cylinder space 32b, on which the Reserve springs 3a, 3b are supported.

Claims (29)

  1. Door closure device for a door with one door wing, preferably a rotating wing, e.g. limit swivel wing, suspended wing or similar
    having a power accumulator (2, 3c, 22, 3a, 3b) to close the door wing, preferably with closing spring (3a, 3b, 3c), wherein the power accumulator (2, 3c, 22, 3a, 3b) can be at least partially loaded during the door opening process and at least partially discharged for the door closing process,
    wherein the power accumulator has a first partial power accumulator (2, 3c) and a second partial power accumulator (22, 3a, 3b) and closing during normal operation occurs by discharging the first partial power accumulator (2, 3c) and closing is supported as necessary by discharging the second partial power accumulator (22, 3a, 3b),
    wherein the first partial power accumulator (2, 3c) has a piston-cylinder arrangement (1, 2) with a first piston (2) guided tightly in a cylinder and the second partial power accumulator (22, 3a, 3b) has a piston-cylinder arrangement (1, 22) with a second piston (22) guided tightly in a cylinder,
    wherein preferably one device is provided to control or adjust the closing and/or opening velocity, e.g. damping device (33, 33a, 33b), preferably a hydraulic or pneumatic damping device, particularly with a piston-cylinder unit, characterised in that,
    the second partial power accumulator (22, 3a, 3b) is loaded by the manual opening process of the door wing, and
    a hydraulic control device for controlling the discharge of the second partial power accumulator (22, 3a, 3b) is provided, which controls the discharge of the second partial power accumulator (22, 3a, 3b) dependent on the timer (33a, 37a, 37b) and/or dependent on a sensor device which monitors the closing process to support the closing action,
    wherein the hydraulic control device has the following features:
    the hydraulic control device has an overflow device (33, 33a, 3b) connected to the hydraulic chamber (32b) of the second partial power accumulator (22, 3a, 3b),
    the overflow device has an arrangement including a flow resistance device, that is designed such that in a first phase of the closing process, the second piston (22) runs slower than the first piston (2), which moves under the effect of the first partial power accumulator (2, 3c),
    the overflow device has an overflow channel (33) with a mouth (33c) that interacts with the first piston (2), that is closed by the piston when the door reaches its end position and/or when the first piston (2) reaches a certain position and stops the movement of the second piston (22) storing the residual energy of the second partial power accumulator (22, 3a, 3b) for the subsequent closing process.
  2. Door closure device in accordance with Claim 1, characterised in that the discharge of the second partial power accumulator (22, 3a, 3b) is controlled dependent on the timer (33a, 37a, 37b) so as to ensure that the door closes fully within a pre-set time after opening.
  3. Door closure device in accordance with Claim 2, characterised in that the timer (33a) and/or the pre-set time can be adjusted.
  4. Door closure device in accordance with one of the above Claims,
    characterised in that the discharge or an increased discharge of the second partial power accumulator (22, 3a, 3b) is automatically triggered, if the closing position is not reached within a certain time or if the sensor device monitoring the closing process is triggered.
  5. Door closure device in accordance with one of the above Claims,
    characterised in that the discharge of the second partial power accumulator (22, 3a, 3b) is stopped as soon as the closing position or a door position near the closing position is reached, wherein preferably the discharge of the second partial power accumulator is stopped, when this position is reached before the timer expires.
  6. Door closure device in accordance with one of the above Claims,
    characterised in that the discharge of the second partial power accumulator (22, 3a, 3b) occurs at least in a certain door opening range, but slower than the discharge of the first partial power accumulator (2, 3c) and/or with discharge phases at various discharge speeds (I, II, III).
  7. Door closure device in accordance with Claim 6, characterised in that the final discharge phase (III) of the second partial power accumulator (22, 3a, 3b) before the end closing position is reached, occurs at a relatively high discharge speed (III) in comparison to the discharge speed of the first partial power accumulator (2, 3c) and/or in comparison to the discharge speed (I, II) of the second partial power accumulator (22, 3a, 3b) in one or several previous discharge phases (I, II).
  8. Door closure device in accordance with Claim 6 or 7, characterised in that before the final discharge phase (III) of the second partial power accumulator (22, 3a, 3b) before the end position is reached, a discharge phase (II) occurs at a relatively slower discharge speed (II).
  9. Door closure device in accordance with Claim 8, characterised in that before the discharge phase (II) of the second partial power accumulator (22, 3a, 3b) which occurs at a relatively lower discharge speed, a discharge phase (I) occurs at a relatively higher discharge speed.
  10. Door closure device in accordance with one of the above Claims,
    characterised in that the first piston (2) and the second piston (22) are run in one common cylinder, preferably one behind the other.
  11. Door closure device in accordance with Claim 10, characterised in that the second piston (22) is formed as a hydraulic or pneumatic piston (22), which can be controlled by a valve (33a, 33b) arranged in an overflow device (33) and can be blocked or arrested.
  12. Door closure device in accordance with Claim 10 or 11 characterised in that the second piston (22) can be controlled pneumatically or hydraulically by the timer (33a, 37a, 37b).
  13. Door closure device in accordance with Claim 11 or 12, characterised in that the timer is formed in an overflow device, which connects a cylinder chamber (32a) created before the second piston (22) with a cylinder (32b) chamber created after the second piston (22), wherein the timer preferably has a flow valve (33a), especially a controllable flow valve (33a) and/or an overflow channel (33) and/or an overflow groove (37a, 37b) in the cylinder and/or in the second piston (22).
  14. Door closure device in accordance with one of the above claims,
    characterised in that, depending on the position of the second piston (22) various flow resistances occur in the overflow device and/or devices with various flow resistances (33a, 37a, 37b) can be successively effective.
  15. Door closure device in accordance with Claims 12 to 14 characterised in that the movement velocity of the second piston (22) is controlled by an overflow groove (37a, 37b), which is created in the outer piston wall or in the inner cylinder wall.
  16. Door closure device in accordance with one of the Claims 12 to 15,
    characterised in that the movement speed of the second piston (22) is controlled by an overflow channel (33), which is created in the cylinder or in the piston.
  17. Door closure device in accordance with Claim 16, characterised in that a control valve (33a) and/or a shut-off device, e.g. shut-off valve (33b) is arranged in the overflow channel (33).
  18. Door closure device in accordance with Claim 17, characterised in that the shut-off valve (33b), when the door reaches its closing position and/or when the first piston (2) reaches a certain position, preferably the final closing position of the first piston (2), the movement of the second piston (22) is automatically stopped, preferably saving the residual energy of the second partial power accumulator (22, 3a, 3b) for the next closing process.
  19. Door closure device in accordance with Claim 1, characterised in that the first piston (2) has a seal (35), which interacts with the mouth (33c) of the overflow channel in the cylinder, preferably a sealing component (35) arranged in a recess, preferably in a blind pocket in the first piston, and preferably a spring-biased sealing component.
  20. Door closure device in accordance with one of the above Claims,
    characterised in that the first piston (2) and the second piston (22) create hydraulic chambers (31, 32a, 32b) within the cylinder chamber, which are connected hydraulically, such that various hydraulic pressures (P1, P2, P3) are created in the chambers,
    wherein a first chamber (31) is created before the fist piston (2) and a second chamber (32a) between the first piston (2) and the second piston (22) and a third chamber (32b) behind the second piston (22), and during the closing process, a higher pressure is created in the first chamber (31) than in the second (32a) and a higher pressure is created in the second chamber than in the third (32b).
  21. Door closure device in accordance with one of the above claims,
    characterised in that a output shaft (4) interacts with the first piston (2), preferably through a pinion gear, e.g. with a toothed rack (2a) on the piston side and a pinion (4a) on the output shaft side.
  22. Door closure device in accordance with Claim 21, characterised in that the output shaft (4) is rotatably received within the cylinder casing and is sealed by a sealing component designed for high-pressure, preferably for hydraulic pressures > 10 bar, preferably approx. 50 bar.
  23. Door closure device in accordance with one of the above claims,
    characterised in that the first partial power accumulator (2, 3c) has a piston cylinder device (2, 31, 32) with a first piston (2) guided tightly within a cylinder (31, 32), preferably a hydraulic piston (2) and the second partial power accumulator (22, 3a, 3b) has a support component of a spring plate type, preferably guided within a cylinder, on which the second partial power accumulator (22, 3a, 3b) is supported, wherein the second partial power accumulator interacts with a controllable blocking device, which blocks the support component, preferably mechanically.
  24. Door closure device in accordance with Claim 23, characterised in that the blocking device has a lock device, which interacts with the support component of the second partial power accumulator (2, 3a, 3b).
  25. Door closure device in accordance with Claim 24, characterised in that the lock device is designed as a ball lock device.
  26. Door closure device in accordance with one of the Claims 23 to 25,
    characterised in that the support component of the second partial power accumulator (22, 3a, 3b) and/or the blocking device interacts with the sensor, wherein the sensor records the pressure and/or a pressure change in a pressure chamber of the piston-cylinder arrangement of the first partial power accumulator.
  27. Door closure device in accordance with one of the above claims,
    characterised in that the fist partial power accumulator (2, 2c) has as its energy storing component, a first closer spring device (3c) and the second partial power accumulator (22, 3a, 3b), as its energy storing component, has a second closer spring device (3a, 3b).
  28. Door closure device in accordance with Claim 27, characterised in that the first closer spring device (3c) has a lower spring force than the second closer spring arrangement (3a, 3b).
  29. Door closure device in accordance with either Claim 27 or 28,
    characterised in that the first closer spring device (3d) is supported on both the piston (2) of the first partial power accumulator and on the support component and/or piston (22) of the second partial power accumulator or on a stop secured to the cylinder and the second closer spring device (3a, 3b) is supported both on the support component and/or piston (22) of the second partial power accumulator and on a stop secured to the cylinder.
EP19960104540 1995-03-21 1996-03-21 Door closer Expired - Lifetime EP0733763B1 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE19509621 1995-03-21
DE19509621 1995-03-21
DE19608023 1996-03-01
DE19608023 1996-03-01

Publications (2)

Publication Number Publication Date
EP0733763A1 EP0733763A1 (en) 1996-09-25
EP0733763B1 true EP0733763B1 (en) 2000-08-16

Family

ID=26013445

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19960104540 Expired - Lifetime EP0733763B1 (en) 1995-03-21 1996-03-21 Door closer

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Country Link
EP (1) EP0733763B1 (en)
DE (2) DE19611203A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105041100A (en) * 2014-04-15 2015-11-11 盖慈有限公司 Door drive

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Publication number Priority date Publication date Assignee Title
CN101469587B (en) * 2007-12-28 2013-03-13 盖泽工业（天津）有限公司 Safety system for motor driven swing door leaf
EP2304149B1 (en) * 2008-05-19 2015-01-21 Helmut Katherl Device for the automatic displacement of a leaf of a window or of a door with a spring-load device
DE102014207217B3 (en) * 2014-04-15 2015-02-19 Geze Gmbh Swing door drive
EP2933415B1 (en) * 2014-04-15 2016-10-19 GEZE GmbH Door drive
EP2933414A1 (en) * 2014-04-15 2015-10-21 GEZE GmbH Door drive
DE102018202783A1 (en) * 2018-02-23 2019-08-29 Geze Gmbh Drive for a wing of a door or a window
DE102018122289A1 (en) * 2018-09-12 2020-03-12 Hettich-Oni Gmbh & Co. Kg Device for mechanically closing a movable furniture part and method for opening and closing a movable furniture part

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US3561036A (en) * 1968-06-24 1971-02-09 Rixson Inc Hold-open apparatus for door
DE3203390C2 (en) * 1982-02-02 1986-12-11 BKS Sicherheitstechnik GmbH, 5040 Brühl Pinion door closer
DE3423242C1 (en) * 1984-06-23 1985-11-07 Dorma-Baubeschlag Gmbh & Co Kg, 5828 Ennepetal Automatic door closer
DE4237179C2 (en) * 1992-11-04 2002-01-31 Geze Gmbh door closers

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105041100A (en) * 2014-04-15 2015-11-11 盖慈有限公司 Door drive
CN105041100B (en) * 2014-04-15 2017-12-08 盖慈有限公司 Door drive

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Publication number Publication date
DE19611203A1 (en) 1996-09-26
DE59605738D1 (en) 2000-09-21
EP0733763A1 (en) 1996-09-25

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