EP2318625A1

EP2318625A1 - Door opening mechanism comprising a blocking valve

Info

Publication number: EP2318625A1
Application number: EP09777604A
Authority: EP
Inventors: Norman Wittke; Oliver Hirschoff
Original assignee: Assa Abloy Sicherheitstechnik GmbH
Current assignee: Assa Abloy Sicherheitstechnik GmbH
Priority date: 2008-08-01
Filing date: 2009-08-01
Publication date: 2011-05-11
Anticipated expiration: 2029-08-01
Also published as: EP2318625B1; US8720959B2; WO2010012496A8; EP2318624A1; WO2010012497A1; ES2411700T3; US20110187130A1; WO2010012497A8; WO2010012496A1; DE102008035928A1; EP2318624B1; ES2401989T3

Abstract

The invention relates to a remote-controlled door opening mechanism for installation in a door. The door opening mechanism has a movable door opening latch (1) and a remote-controlled blocking device which co-operates directly or indirectly with the door opening latch (1) in such a way that said latch (1) can be shifted into a blocking position and a release position. A fundamental feature of the invention is that the blocking device has a hydraulic circuit, in which a valve (5), a working piston (2, 2k) and a restoring device (30) are arranged, said working piston (2, 2k) being designed as a blocking member (2) and the valve (5) as a remote-controlled valve (5), which is connected in such a way that in the closed position of the valve (5) the door opening mechanism (1) is in the blocking position and in the open position of the valve (5), the door opening mechanism (1) is in the release position.

Description

Door opener with shut-off valve

The invention relates to a remotely operable door opener for installation in a door, preferably in the stationary frame of a door, with a movable door latch and a remotely operable locking device which interacts directly or indirectly with the door latch such that the door latch in a blocking position and a release position is switchable.

In the following some definitions of terms are given:

The term "remotely operated door opener" in the present application is to be understood as "remotely actuable locking device for a door." The locking device has a remotely operable locking device and a door opener latch The blocking element on the output side interacts directly or indirectly with the door opener latch and switches the door opener latch on A locked position means that the door opener latch is blocked and therefore the door can not be opened, the release position means that it is unlocked and the door can be opened.

Under door opener not only the opener of a door, but also a gate, a window and / or other closure device is understood to be movably mounted wing. That means under the term door is in the The present application also understood a gate, a window and / or another closure device with movably mounted wing. But door opener does not mean that an aggregate must be provided to drive the opening movement of the door; However, such an aggregate may be provided as an additional device.

The term wing or door is understood in the present application, a rotary wing and / or a sliding sash consisting of one or more such wings. It may also be a non-negotiable, comparable closure device in the construction or furniture sector, such. also a smoke damper.

The term lock latch in the present application is understood to mean the latch cooperating with the door latch. It can be rigidly mounted or spring-mounted. It does not have to - but can - be arranged in conjunction with a lock.

As far as the state of the art is concerned:

For example only, the DE 42 29 239 C1 called. This document describes a door opener of the type mentioned. The locking device is formed in this door opener as an electromechanical device consisting of a lever device and an electromagnet. The lever mechanism composed of a one-armed lever and a two-armed lever engages in this known door opener directly on the door opener trap constructed as a pivoting latch. The lever device is locked via the electromagnet in the case of energization, so that the door opener latch is thus present in energized electromagnet in its blocking position and is released when energized electromagnet. This known door opener thus operates according to the so-called closed-circuit principle; in contrast to the likewise known working current principle, in which the release position at energized electromagnet and the blocking position is present at non-energized electromagnet.

The door opener known from DE 42 29 239 C1, which operates according to the quiescent current principle, is a so-called escape door opener, ie. it is designed for use in escape doors. For this application, it is necessary that when the power is switched off, the release position for opening the door is switched. In order to ensure reliable even in the event that several people press against the door, a release of the door latch, which is essential for use as escape door opener is provided in this known door opener that the lever device is composed of a two-armed safety lever and a one-armed locking lever , The safety lever cooperates with its one arm as an anchor plate with the electromagnet and on his other arm, he has a specially designed stop for the locking lever. These

Stop assembly is designed so that there is a wedge-like displacement effect on the stop by the locking lever and thus safely comes with its power off the locking lever from its stop position, even if pressure is exerted on the door.

From DE 10 2004 037 827 A1, an electric door opener is known, in which the door catcher trap designed as a pivoting latch is adjustable in stages. This stage adjustment is realized according to this document, that the door latch is composed of a base body and a, the case locking edge having blocking body. The main body and the locking body are coupled to one another via a complementary interlocking locking toothing and fixable on each other via a screw. About this gearing adjustment is possible in stages depending on the tooth spacing. The adjustable locking body is referred to in practice Aufschraubstück. The adjustment must be made manually. From EP 0 841 474 A1 a door opener is known whose door opener latch is infinitely adjustable by the door opener trap is composed of a base body and a locking block which is infinitely adjustable via an extension device. Again, the adjustment is done manually.

The invention has the object of developing a door opener of the type mentioned, so that it is simple and provides functional advantages over conventional door openers.

This object is achieved with the subject of the patent claim 1. The claim 1 relates to a remote-controlled door opener for installation in a door. The door has a door leaf, which is mounted movably on a preferably stationary frame. The door opener is preferably mounted in the stationary frame. The door opener comprises a movable door opener latch and a remotely operable locking device, which directly or indirectly with the

Door opener latch cooperates such that the door latch latch is switchable in a blocking position and a release position. As essential it is provided that the locking device comprises a hydraulic circuit in which a valve and a working piston is arranged, wherein the working piston acts as a locking member acting directly or indirectly with the door latch and the valve is designed as a fernansteuerbares valve, which is so connected in that, when the valve is in the closed position, the door-opener latch is in the blocking position and, when the valve is open, the door-opener latch is in the release position. In this case, an energy storage device having a return device is provided, which acts on the working piston and / or the door opener trap in the sense of setting the blocking position.

In the subject matter of claim 1 is thus a door opener, in which a locking device which cooperates with the door latch, via a valve is switchable. The locking device works with a hydraulic blocking, which can be switched on and off by the valve of the locking device. The valve can be used as a valve with adjustable Throughflow and / or be designed as a check valve. The valve is in preferred embodiments as a check valve, and preferably designed as open / close valve. The valve can be used in particular as an electrically controllable valve, for. B. be designed as a solenoid valve. The valve can also be controlled via a mechanical actuator or hydraulically or pneumatically. In the case of moving designs, the valve is thus configured and switched such that the working piston and / or the door-opener trap can be controlled by the valve.

A simple structure and high reliability results with

Embodiments that provide that the valve of the locking device is designed as a preferably electrically controllable valve with an axially movable valve tappet. It can be provided in this case that the valve stem has two axially offset from one another and angular, preferably arranged perpendicular to the longitudinal axis, mutually crossed flow channels. In this way, a precise functionally reliable circuit of the valve can be ensured.

In preferred embodiments, it is provided that the check valve is designed as an electric solenoid valve. Here, the valve stem may be formed as an armature of the solenoid valve.

Practical advantages for use arise with embodiments in which it is provided that the valve stem for switching the solenoid valve between working and quiescent current operation is designed to be rotatable about its longitudinal axis by a predetermined angle, preferably 90 °.

Advantageous embodiments are possible in which the position of a cooperating with the door latch latching member can be positioned in any position in the locked position. The locking member can through the

Hydraulic circuit of the locking device are actuated, directly or indirectly in the case of an intermediate transmission. When Hydraulic medium different liquids can be used, for example, theological fluids. The locking member may be formed as a working piston, for. B. connected to a piston of a piston-cylinder device of the hydraulic system. The working piston can be controlled by the valve of the locking device. Preferably, it is provided that the working piston or a part connected to the working piston interacts with the door-opener latch in abutment or cooperates with the door-opener latch with the interposition of a transmission gear.

As a restoring device for the door opener fall resetting devices in question, which act on the door opener trap directly, that is independent of the locking member. However, it is additionally or alternatively possible that the restoring device acts on the hydraulic medium of the hydraulic circuit. In these embodiments, the restoring device can ensure the return of the locking member forming or connected to the locking member working piston.

The resetting devices used each have an energy store. The energy accumulator may preferably be designed as a mechanical spring accumulator. However, it can also be used as other energy storage, e.g. be formed pneumatic accumulator. It is essential that it is charged when opening and / or closing the door and then provides the energy for the automatic return of the working piston or the door opener trap available.

In preferred embodiments, it is provided that the restoring device interacts directly or indirectly with the working piston or the blocking member in such a way that the working piston is returned to its blocking position in which it holds the door-opener catch in the blocking position.

In these embodiments, therefore, the locking member or the working piston is automatically tracked the door opener trap. That means there is one here Tracking device provided which automatically tracks the locking member or the working piston during or after closing the door of the door latch. The tracking device can be formed solely by the restoring device, in particular solely by the force accumulator, preferably by a mechanical return spring. Alternatively or additionally, however, the tracking device by a separate drive means, for. B: a force acting on opening the door and / or when closing the door acted upon separate energy storage device, preferably mechanical spring storage device, and / or operable with external energy motor device, preferably electric motor device, it be made possible embodiments in which the energy storage having Restoring device in addition to the energy storage additionally has such a foreign power-operated power device.

This automatic tracking of the locking member with detection in any position can be advantageously realize with door openers with hydraulic detection or pneumatic detection, since these systems in a particularly simple manner, the locking member or the working piston in any position trackable and detectable there. The release is then carried out in each case by appropriate actuation of the valve.

The trackable blocking element can be designed in certain embodiments as a pure blocking element whose function is merely to lock the door latch in the blocking position and unlock in the release position. However, other embodiments are possible in which the locking element is designed as a the door latch latching element.

Preferred embodiments are provided in which the restoring device having a force accumulator is designed as a hydraulic or pneumatic device which is connected in the hydraulic circuit of the blocking device and has a compensating cylinder and a compensating piston guided therein by the force accumulator, eg a mechanical return spring. In these embodiments can advantageously be provided that the cooperating with the balance piston power storage, such as a mechanical return spring is dimensioned so that it builds a hydraulic pressure when opening the door, which is able to return the working piston in the locked position. It may be provided here that the force accumulator cooperating with the compensating piston, for example a mechanical return spring, is dimensioned so that it builds up a hydraulic pressure when opening the door, which is able to move the working piston together with the door opener latch into the position. in which the door opener latch in the closed position of the door is in the blocking position and / or is in abutment with the lock latch.

In these embodiments, so an automatic adjustment of the door latch occurs in the position in which is in the closed position of the door, the door opener trap with the latch in abutment. That is, there is provided an automatic adjustment of the door opener trap, which automatically sets the door opener latch in this position. The door opener trap is thus self-adjusting. On a manual adjustment for adjusting the Aufschraubstücks, as required in the prior art to achieve an adjustment to the structural conditions during maintenance or during maintenance to adapt to the use- and weather-related changes, can be dispensed with or they can possibly only be carried out as a rough pre-adjustment during assembly. The fine adjustment then takes place automatically during operation of the door opener via the automatic self-adjustment. The self-adjusting device can be formed solely by the restoring device having a force store, preferably a mechanical return spring, or alternatively or additionally by a separate device, for. B. acted upon opening and / or closing of the door separate power storage device, preferably spring storage device and / or operable with external energy engine device, preferably electric motor device. In preferred embodiments, it is provided that the tracking device of the locking member and / or the adjustment of the door opener latch continuously or stepwise adjusts the position of the working piston or the door opener trap.

The restoring device may be formed in other embodiments as preferably mechanical spring means which is supported without interposition of the hydraulic or pneumatic circuit with its one end to the working piston or the door latch latch and with its other end on the housing of the door opener or on a component arranged therein.

In particular, for use as escape door openers can be provided embodiments in which in the hydraulic circuit, a pressure relief valve is arranged parallel to the check valve. The pressure relief valve may be adjustable, so that the pressure relief valve opens when an adjustable predetermined overpressure is exceeded.

Particular functional advantages arise in embodiments which provide that a cooperating with the door latch and / or the working piston holding device is provided which locks the door latch or the working piston after opening the door in an open position of the door and closing, preferably by the Lock case is releasable. In preferred developments with holding device can be provided that cooperating with the door latch and / or the working piston intermediate stop is provided which locks the door latch in a post-opening the door already partially reset position and is preferably released by the latch when the door is closed ,

Functional advantages when opening and / or closing the door and versions with a particularly preferred size can be obtained if it is provided that a lock latch actuator is provided with the

Lock case when opening and / or closing the door interacts in the sense to bring the latch except the stop position with the door latch latch or in the stop position with the door latch latch. A simple structure of the hydraulic circuit of the locking device results in embodiments that provide that in the hydraulic circuit downstream of the balance piston, a check valve is arranged.

In the following, embodiments will be explained with reference to figures.

Show

Figure 1 is a schematic view of the structure of a first

Embodiment of a door opener according to the invention;

Figure 2 is a schematic view of the structure of a second embodiment of a door opener according to the invention;

Figure 3 is a schematic view of the structure of a third

Embodiment of a door opener according to the invention;

Figure 4 is a schematic view of the structure of a fourth

Embodiment of a door opener according to the invention;

Figure 5 is a schematic view of the structure of a fifth

Embodiment of a door opener according to the invention, in this case with gradual or continuous self-adjustment of

Door opener catch via rotating movement of the pivoting latch;

Figure 6 is a schematic view of the structure of a sixth

Embodiment of a door opener according to the invention, in this case with gradual or continuous self-adjustment of the two-piece door opener trap with linear self-adjustment of the linearly movable part of the pivoting latch; Figure 7.1 is a schematic view of the structure of a seventh

Embodiment of a door opener according to the invention, in this case with gradual or continuous linear self-adjustment of a pivoting latch with positive guidance on guide cam, in locked position;

Figure 7.2 is a view of the embodiment in Figure 7.1, but with in

Release position moved, determined by a holding device door opener trap.

Figure 8.1 is a schematic view of the structure of an eighth

Embodiment of a door opener according to the invention with gradual or continuous linear self-adjustment of the linearly movable door opener latch with guiding the latch on the door opener housing, in the blocking position;

FIG. 8.2 shows a view of the embodiment in FIG. 8.1, but with the door opener latch moved and released in the release position when the retaining device is triggered by the latch;

Figure 9.1 is a schematic view of the structure of a ninth

Embodiment of a door opener according to the invention with a stepped or continuously variable linear self-adjustment with an actuating slide for the latch, in locked position;

Figure 9.2 is a view of the embodiment in Figure 9.1, but upon actuation of the latch by the operating slide when opening the door.

Figure 10 is a first perspective sectional view of a concrete structural design of a tenth embodiment of a door opener according to the invention; Figure 11 is a second perspective sectional view of the door opener in Figure 10;

Figure 12 is a third perspective sectional view of the door opener in Figure 10;

13a is a fragmentary sectional view of the door opener in Figure 10 to illustrate the function of the locking device in the locked position.

FIG. 13b is a fragmentary sectional view of the door opener in FIG. 10 to illustrate the function of the locking device in FIG

Release position;

Figure 14a is a perspective view of the armature of the check valve to

Clarification of the function of the locking device in the blocking position, in working current operation;

Figure 14b is a perspective view of the armature of the check valve to illustrate the function of the locking device in the release position, in working current operation;

Figure 15a is a perspective view corresponding to Figure 14a, but in quiescent operation;

Figure 15b is a perspective view corresponding to Figure 14b, but in quiescent operation;

FIG. 16a shows a circuit arrangement of the components of the door opener in FIG. 10, in the blocking position;

FIG. 16b shows the circuit arrangement in FIG. 16a, but in the release position; 16c, the circuit arrangement in Figure 16a, but at the transition to the blocking position.

Figure 1 shows a schematic view of a door opener with hydraulic detection of the locking member 2 via an electrically actuated hydraulic valve 5. The door opener latch 1 is designed as a pivoting latch. The locking member 2 is formed as a hydraulic piston 2k of the hydraulic circuit of the locking device. The hydraulic piston 2k is guided as a working piston in a hydraulic cylinder 2z and forms a piston-cylinder device 20 of the hydraulic circuit of the locking device. In the hydraulic circuit, except for the piston-cylinder device 20 with the hydraulic piston formed as a locking member 2, a surge tank 3z provided with a return spring 3f. This acted upon by the spring 3f piston-cylinder unit forms a hydraulic return device 30 of the locking member. The hydraulic piston-cylinder unit 20 and the expansion tank 3z, ie the hydraulic return device 30 are - as shown in Figure 1 - connected via hydraulic channels, wherein in the one hydraulic channel, a check valve 4 and in the other hydraulic channel, the valve 5 is arranged which is electrically controlled to turn on and off the determination of the piston 2.

This door opener can work according to the quiescent current principle. In this case, the valve 5 is connected electrically zuhaltend. That is, as long as the valve is energized, the valve is closed and thus locks the locking element 2 in its blocking position. When the power is turned off, the valve opens.

As a variant, it is possible to operate the door opener also in the working current principle. For this purpose, the valve 5 must be switched electrically open, that is, as long as the valve 5 is not energized, it is closed by locking the locking element 2. When the valve 5 is energized, it opens with the release of the locking element. 2

In addition, in a hydraulic connection channel also a pressure relief valve may be arranged, which ensures that when a Overload on the door, the hydraulic lock is released by the pressure relief valve opens. The pressure relief valve may preferably be variably adjustable to a predetermined overload.

In the embodiment of Figure 1, a hydraulic circuit is used to control the locking member 2, i. the working medium of the circuit is hydraulic oil. Instead of hydraulic oil, a comparable liquid or even a gaseous working medium, e.g. Air, to be used.

The door opener is preferably mounted on the stationary frame of a door. In the closed position of the door, the door latch latch 1 engages behind a latch arranged on the door latch or the like. The lock latch is not shown in FIG. The latch may be of conventional design, i. as a resilient trap with an inlet slope over which the lock latch when closing the door by the door opener latch 1 is suppressed and finally engages behind in the closed position and is in abutment with her. In the stop position, the latch with its vertical stop surface is in the stop with the door opener trap 1 in the blocking position.

In an alternative reverse mounting the door opener can be mounted door leaf fixed and cooperate with the door latch with a latch arranged on the stationary frame latch or the like accordingly.

The operation of the door opener in Figure 1 is as follows:

In the closed position of the door, the door opener latch 1 engages behind the latch. As long as the valve 5 is closed, the locking member 2, that is, the working piston 2k, hydraulically blocked against movement in Figure 1 to the right and thereby simultaneously also the door latch detected, ie it is in its so-called. Locking position. It is detected and thus blocked, so that they can not rotate in the illustration in Figure 1 in a clockwise direction. It thus holds the lock catch, not shown, in the stop position. The door can not be opened as long as this blockage by the door opener trap 1 exists. Only when the valve 5 is opened by electrical actuation, the locking position of the door opener latch 1 is released, ie it comes in the release position. This means that it is enabled so that it can rotate about its pivot axis 1s in Figure 1 in a clockwise direction. When the door is opened, the door-opener catch is turned out of position via the latch of the door. During this rotation of the door opener latch 1, the blocking member 2, ie the working piston 2k of the hydraulic piston-cylinder device 20 in FIG. 1, is moved to the right. The hydraulic medium is thereby moved in the hydraulic circuit so that it flows through the hydraulic line of the open valve 5 and flows into the compensating cylinder 3z, which is acted upon by the return spring 3f hydraulic piston-cylinder device 30. The spring piston 3k is therefore acted upon by compression of the return spring 3f and moved in Figure 1 to the left.

Once in the opening process the door latch 1 disengaged

Latch case comes, the return flow of the hydraulic medium under the action of the return spring 3f. The oil reflux can, as long as the valve 5 is opened, flow back through the flow channel of the valve 5. However, when the valve 5 is already closed, the oil return flow through the check valve 4. It opens automatically when pressurized in the return direction, so that the oil return flow can take place through the line of the check valve 4. Under the action of the oil reflux, the working piston 2k of the hydraulic piston-cylinder device 20 is returned to its closed position.

In embodiments in which the door opener latch 1 has no separate restoring device, as is the case in Figure 1, the locking member 2, ie the working piston 2k, during its entire movement during opening and closing in each case permanently in abutment with the door opener latch 1. If the valve is closed, the door opener trap 1 is blocked against movement in the release direction. In the closed position of the door while the hydraulically blocked locking member 2 is in contact with the door latch 1, which in turn is engaged behind by the latch of the closed door and is in abutment with this. FIG. 2 shows a modified embodiment in comparison to FIG. The modification consists in that a return device 33 is provided, which does not act like the hydraulic return device 30 provided in FIG. 1 via the hydraulic circuit and the blocking element 2 on the door opener latch 1, but independently acts directly on the door latch latch. The restoring device 33 may be a helical compression spring which is supported with its one end on the door opener housing 6 and with its other end on the door opener latch 1.

Figure 3 shows a comparison with Figure 1 modified embodiment in which the modification consists in that between the hydraulically actuated locking member 2 and the door latch latch 1, a one-armed lever 2w is connected. In this one-armed lever 2 w is a so-called change, which acts as a transmission between the locking element 2 and the door latch 1.

Figure 4 shows a comparison with the embodiment in Figure 3 modified embodiment, the modification is that between the hydraulically actuated locking member 2 and the one-armed lever 2w a one-armed locking lever 2s is arranged, which cooperates with the hydraulically actuated locking member 2. The locking lever 2s can be locked and unlocked via the hydraulically actuated blocking element 2.

In FIGS. 3 and 4, a restoring device is not shown. However, the provided restoring device can interact directly with the door opener latch 1, z. B. as shown in Figure 2 as a restoring device 33, or acting on the case via the hydraulic locking element 2, z. B. as in Figure 1 as a hydraulic return device 30, be executed.

Figure 5 shows a comparison with the embodiment in Figure 2 modified embodiment. The modification is that the hydraulically actuated locking member 2 each of the door latch 1 in the closing direction automatically is tracked and in the tracked position, when the door latch 1 in the closed position of the door is engaged with the lock latch, via the hydraulic valve 5 is detected. This means that the door latch 1 in this embodiment has an automatic self-adjustment. The conventional adjustment of the door opener trap, in which the setting of

Door opener trap on the structural situation of the door during assembly or maintenance of the door opener as a manual adjustment by an adjusting body - a so-called Aufschraubstück - on the main body of the door latch is set manually, is no longer necessary in this new system. The reason for this is because the door opener latch 1 is automatically automatically adjustable in the optimum position to lock latch and the determination of the locking member 2 in any arbitrarily tracked position is possible and takes place automatically.

The tracking movement of the door opener latch 1 is effected in the embodiment in FIG. 5 by rotating the pivoting latch 1 about its pivot axis 1s via the reset device 33. In addition, however, the hydraulic locking element 2 can cause not only the tracking of the locking element 2, but also the provision of the door latch 1 under hydraulic loading.

In Figure 5, an intermediate stop 11 is additionally provided, which cooperates with the lock catch 1. This intermediate stop 11 may be formed as a memory device that holds the door latch 1 after opening the door in an intermediate position and when closing the door, preferably controlled by the latch, is released, then the automatic adjustment and adjustment of the latch 1, as described above. The restoring device 33 may be formed as the Rückkstelleinrichtung 33 in Figure 2 as a preloaded mechanical spring means which is acted upon opening the door and then automatically resets the door opener latch 1 when closing the door. The bias of the return device 33 ensures that it spends the door opener latch 1 in the closed position of the door each up to the stop position to the latch. Additionally or alternatively the restoring device 33 but also have a motor drive with external energy, z. B. an electric motor unit.

FIG. 6 shows an embodiment modified in comparison to the exemplary embodiment in FIG. 5. The modification consists in that the door opener latch 1 is designed here as a pivoting latch with a pivotable basic body 1a and a linearly movable latching body 1b. The pivotable base body 1a cooperates with the hydraulically actuated blocking element 2. The linearly movable case body 1b is acted upon by an actuator 2I to bring the linearly movable door halyard body 11 into engagement with the latch and lock there. The actuating device 2I is connected to the hydraulic circuit of the blocking element 2 and is also released via the hydraulic valve 5. This actuator 2I may be connected to a memory device 2m. The actuator 2I may be formed as an automatic spring device or as a foreign power-operated engine unit.

Figures 7.1 and 7.2 show a comparison with the embodiment in Figure 5 modified embodiment. The modification consists in that the door opener latch 1 is designed here as a positively driven latch via a guide cam 1f.

In this embodiment, a holding device 12 is additionally provided, which locks the door latch 1 after opening the door in the open position, as shown in Figure 7.2. This lock is then released when closing the door. For this purpose, the holding device 12 on a trigger element 12a, which is confirmed by the latch when closing the door.

Figures 8.1 and 8.2 show a comparison with the embodiment in Figures 7.1 and 7.2 modified embodiment. The modification is that here the door opener latch 1 is designed as a linearly displaceable latch and the door opener housing 6 a lock latch guide 6a for the latch 90th is provided. When the door is opened, the door opener latch 1 is moved upward under the action of the latch 90 into the position shown in FIG. 8.2. The lock latch guide 6a causes the lock latch 90 finally disengages when the door is opened.

The door opener latch 1 is detected in the position shown in Figure 8.2 on the holding device 12 and remains in this position as long as the door is open. When the door is closed, the trigger element 12a of the holding device 12 is then actuated via the latch 90 in the sense of a release of the holding device. The door opener trap 1 then moves under the action of the hydraulically actuated locking element 2 down into the blocking position shown in Figure 8.1. When the door is closed, the lock catch 90 engages under the locking edge of the door latch 1 in the optimal engagement due to the made by the locking element 2 continuous tracking and detection.

Figures 9.1 and 9.2 show a comparison with the embodiment in Figures 8.1 and 8.2 modified embodiment. The modification consists in that here no lock latch guide 6a is provided, but a lock latch actuator 19, which pushes back the latch 90 via a preferably hydraulically actuated plunger during the opening process. The lock latch actuator 19 may be connected to the hydraulic device of the locking device. But it can also be used as a separate motor device, eg. B. be designed as an electric motor.

In the figures 10ff a concrete structural design of an embodiment of a door opener according to the invention is shown in various sectional views. The overall arrangement with the circuit of the components of the door opener is best seen in the schematic diagrams 16a, 16b and 16c.

The door opener, as shown in the sectional views in Figures 10ff, a housing 6, in which the components of the door opener are mounted. The components are components that are used in conjunction with the Embodiments of Figures 1 to 9 are already described above, namely a door opener 1 and a hydraulic locking device with hydraulic circuit in which, as best seen in the diagrams 16a, 16b and 16c, a locking member 2 with hydraulic piston 2k, a hydraulically acting return device 30, an electrically operable check valve 5 and a check valve are connected.

In the circuit diagrams 16a, 16b and 16c, the components of the door opener are shown. Recognizable is the following: The piston 2k of the hydraulic piston-cylinder device 20 forms in the illustrated embodiment, the locking member 2, which interacts directly with the door latch 1.

The hydraulic spring storage device 30 consists of a hydraulic compensating cylinder 3z in which a spring piston 3k acted upon by a helical compression spring 3f is guided as a compensating piston. The helical spring 3f forms the return spring, which ensures that the working piston 2k forming the locking member 2 is automatically returned to its blocking position after the door has been opened.

The check valve 4 consists of a 4k acted upon by a helical compression spring 4r locking ball. The check valve 4 is connected between the hydraulic spring storage device 30 and the hydraulic piston-cylinder device 20. The check valve 4 can only be flowed through in one direction, from right to left in FIGS. 16a to 16c, and thus ensures that the hydraulic medium in the hydraulic circuit from the piston-cylinder device 20 to the hydraulic spring-type storage device 30 is only via the valve 5 can flow and can not get directly to the hydraulic spring accumulator 30 by bridging this valve 5.

The door opener latch 1 is formed in the illustrated case as a pivotal latch pivotable about its pivot axis 1s. It has a so-called. Aufschraubstück 1j. The Aufschraubstück 1j has in cross-section L-shaped configuration and is on the Basic body of the door opener latch 1 in different position via ribs by means not shown screws lockable, ie adjustable to adjust the door latch 1 to the structural conditions. The adjustment in the adjustment is carried out so that the door opener latch 1 with its Aufschraubstück 1j in the closed position of the door engages behind the latch of the door while rests against the lock latch vibration. In the illustrated case, the door opener latch 1 cooperates with a return spring 33, which is supported directly at its one end to the door latch latch and is supported with its other end in the door opener housing 6. About this return spring 33 ensures that the door opener latch 1 is reset in each case after opening the door back to its closed position in which it is behind with the door closed by the latch case with this in the attack.

In the illustrated case, the check valve 5 has a valve tappet 5v, which is arranged in a cylindrical magnet coil 5s and is rigidly connected to the end face of a plate-shaped magnet armature 5a. The valve lifter 5v is supported on a return spring 5r. The magnetic coil 5s is connected via a switch 57 to a voltage source 58. The valve lifter 5v connected to the armature 5a is drawn into the solenoid coil 5s when the switch 57 is closed. In this case, the return spring 5r is compressed. The valve stem 5v, with its rear end section facing away from the magnet armature 5a, passes through the hydraulic connecting line 56 and has there two through-holes arranged axially one behind the other and perpendicular to the longitudinal axis and crossed by 90 °. A front through-hole 5dv faces the armature 5a, and a rear through-hole 5dh faces the rear end portion. The axial distance between the two through holes corresponds to the working stroke of the valve stem 5v.

In the case illustrated in FIGS. 16a to 16c, the check valve 5 is connected as a load current valve, ie the door opener latch 1 is released when the switch 57 is closed. When the switch 57 is open, as shown in Fig. 16a, the door opener latch 1 is locked. Although the rear through-hole 5dh is located in the plane of the connection line 16, it is not possible for the two sections of the connection line 16 adjacent to the valve tappet 5v to connect to one another because its longitudinal axis does not coincide with the longitudinal axis of the connection line 16

Connecting line 16 is aligned, as described in more detail later in connection with Figures 14a and 15a.

When the switch 57 is closed, as shown in Fig. 16b, the valve lifter 5v is drawn into the solenoid coil 5s. The front

Through-hole 5dv engages in the connecting line 16 and connects the two on the surface of the valve stem 5v ending portions of the connecting line 16 together, as described in more detail later in connection with Figures 14b and 15b. The check valve 5 is open.

As can be seen in the circuit diagrams 16a, 16b and 16c, when the released door opener latch 1 is pivoted by the latch of the door, the working piston 2k is depressed and the balancing piston 3k is pressurized because of the opened check valve 5. The compensating piston 3k is moved back and compresses the restoring spring 3f acting on the balance piston 3k. Further, acting on the door opener latch 1 return spring 33 is compressed. The long on the door latch latch return spring 33 immediately sets the door latch 1 back into the locked position as soon as the latch is out of engagement with the door latch.

If now, as shown in Fig. 16c, the switch 57 is opened again and thus the check valve 5 is closed, the return piston 3f acting on the balance piston 3k pushes the balance piston 2k back into its initial position. As a result of the pressure rise in the connecting line 16 between the balance piston 3k and the check valve 4 now opens the check valve 4, whereby in the connecting line 16 between the check valve 4 and the piston 2k, the pressure rises and the working piston 2k is brought into its initial position. The check valve 4 prevents the acting on the working piston 2 k hydraulic pressure is reduced again. The locking device 2 is locked again.

It can also be provided to dispense with the return spring 33 acting on the door opener latch 1 and to dimension the return spring 3f acting on the compensating piston 3k in such a way that the door latch latch 1 is reset by the power piston 2k.

In the following, the concrete structural design of the embodiment will be explained with reference to the perspective sectional views of Figures 10ff. All components described above are arranged in the substantially cuboid housing 6. For better orientation, an x-y-z coordinate system is drawn in each case.

The hydraulic channels 16 are formed as housing bores of the solid body of the housing 6. Likewise, as housing bores, the receiving spaces of the components are formed in the housing angeodneten components of the door opener. The arrangement of the components is, as the perspective sectional views show complex nested in the smallest space to obtain the most compact design of the door opener. 10 shows the door opener in a half section along the xz plane, wherein the section is laid so that the structure of the check valve 5, the working piston 2k and the compensating piston 3k of the hydraulic spring device 30 can be seen in a sectional view. According to the representation chosen in FIG. 10, the sides of the housing 6, from which the door opener latch 1 protrudes, form the upper end side and the rear side of the housing. According to this assignment, the check valve 5 and the compensating cylinder 3z are arranged in the lower portion of the housing 11, wherein the longitudinal axes of the two components are arranged parallel to the upper or lower end face of the housing 6. The working piston 2k is arranged below the door opener latch 1 and engages centrally on the door opener latch 1 (see FIG. 10).

The check valve 5 is rotationally symmetrical. The rotationally symmetrical valve body 5k has a cylindrical receiving space for the valve tappet 5v, which is supported on the return spring 5r with its end face facing away from the magnet armature 5a. The return spring 5r is designed as a helical compression spring. Furthermore, the valve body 5k has on its outside a cylindrical receiving space for the magnetic coil 5s. The outer end face of the rigidly connected to the valve stem 5v magnet armature 5a is aligned with the lateral end face of the housing 6. The inner annular end face is at rest, ie in the blocking position of the check valve 5, spaced from the annular end face of the valve body 5k, so that, as As described above, the front through hole 5dv of the valve lifter 5v is not engaged with the connection pipe 16.

As can be seen in FIG. 10, the outer end face of the magnet armature 5a is provided with an arrow-like change-over recess 5u, which allows the valve tappet 5v to be manually adjusted by rotation about its longitudinal axis from closed-circuit operation to working-current operation and vice versa. Two

Markings on the housing 6 indicate the rotational position of the valve stem 5v. By turning the valve stem 13v by 90 °, the check valve 5 can be offset from the working current operation in the quiescent current operation. In quiescent operation, the door opener latch 1 is locked when the switch 57 (see FIGS. 16a to 16c) is closed and released when the switch 57 is open or the power supply is interrupted. It is possible in this way, for example, escape doors to unlock in case of emergency.

Fig. 11 shows a section in the xy plane, now with the back of the door opener facing upward. To recognize are now numerous sections of the connecting line 16, which are preferably formed as passage or blind holes, which pass through the surface of the housing 6. The connecting lines 16 are at the pass-through areas with the surface of the Enclosed housing with pressed balls. The check valve 5 is not shown in detail in Fig. 11.

FIGS. 13 a and 13 b show a section in a y-z plane, which is laid through the sections of the connecting line 16 resting against the check valve 5. As can be seen in FIGS. 13a and 13b, the valve body 5k has aligned through-holes which, when the shut-off valve is open, are aligned with the front through-hole 5dv in the valve lifter 5v and which further correspond to the sections abutting the check valve 5 (FIG. 13b). Fig. 13a shows the blocking state of the check valve 5, in which the rear through hole 5dh is in the cutting plane. As already noted above, Figures 13a and 13b, the check valve 5 in working flow operation.

FIGS. 14a to 15b now illustrate the switching over of the shut-off valve 5 from the working-current operation (FIGS. 14a and 14b) into the quiescent-current operation (FIGS. 15a and 15b).

In working-current operation, the front through-hole 5dv establishes the connection between the sections of the connecting line 16 resting against the check valve 5, as soon as the magnetic coil not shown in FIGS. 14a to 15b (see FIGS. 16a to 16c) flows through (FIG. 14b).

Now, if the valve stem 5v is rotated by 90 °, as shown in Fig. 15a and 15b, the check valve 5 is in the quiescent current operation. Now the rear through-hole 5dh establishes the connection between the sections of the connection line 16 resting against the check valve 5 as soon as the magnetic coil is not current-flowed (FIG. 15a). If the solenoid is current-flowed, the check valve 5 is locked. LIST OF REFERENCE NUMBERS

1 door opener trap

1s pivot axis

1a trap body

11 linearly movable trap body

1f guide curve

1j screw-on piece

2 locking member

2k working piston

2z hydraulic cylinder

2w change

2s locking lever

2I actuator

2m memory device

20 piston-cylinder device with working piston 2k

3f return spring

3k balance piston

3z compensation cylinder

30 hydraulic spring storage device

33 return spring outside hydraulic circuit

4 check valve

4r spring

4k ball

5 check valve

5s magnetic coil

5a magnet armature

5V valve lifter

5dh rear through hole 5dv front through hole

5r return spring

5u switch recess

58 power source 57 switch

6 door opener housing

6a Guide bevel for lock latch

11 intermediate stop

12 holding device

12a trigger element

16 Hydraulic line of the hydraulic circuit

16v branch

19 lock latch actuator

90 latch

Claims

claims

1. Fernbetätigbarer door opener for installation in a door with a preferably fixed door frame and a door movably mounted thereon, with a movable door latch latch (1) and a remotely operable

Locking device, which interacts directly or indirectly with the door opener latch (1) such that the door opener latch (1) is switchable to a blocking position and a release position, characterized in that the locking device comprises a hydraulic circuit in which a valve (5) and a working piston (2, 2k) is arranged,

wherein the working piston (2, 2k) interacts as locking member (2) of the locking device indirectly or directly with the door opener latch (3) and the valve (5) is designed as a remotely controllable valve (5) which is switched so that when it is closed Position of the valve (5) is the door opener latch (1) in the locked position and in the open position of the valve (5) the door opener latch (1) in the release position; and

in that a restoring device (3f, 30, 33) having an energy store is provided which acts on the working piston (2, 2k) and / or the door opener catch (1) in the sense of setting the blocking position.

2. Door opener according to claim 1, characterized in that the valve (5) is designed as an electrically and / or mechanically and / or hydraulically and / or pneumatically controllable valve (5).

3. Door opener according to claim 1 or 2, characterized in that the valve (5) is designed as a valve with adjustable flow and / or as a check valve (5).

4. Door opener according to one of the preceding claims, characterized in that the working piston (2, 2k) and / or the door opener latch (1) through the valve (5) is controllable or are.

5. Door opener according to one of the preceding claims, characterized in that the working piston (2k) or with the working piston (2k) connected part with the door latch latch (1) standing in abutment directly cooperates or with the door latch (1) with the interposition of a transmission gear (2w, 2s) interacts indirectly.

6. door opener latch according to one of the preceding claims, characterized in that the restoring device (3, 30, 33) with the locking member of

Locking device or with the working piston (2, 2k) interacts directly or indirectly such that the working piston (2, 2k) is reset in its locking position in which he holds the door latch (1) in the locked position.

7. Door opener trap according to one of the preceding claims, characterized the restoring device (3) is designed as a hydraulic or pneumatic device which is connected in the hydraulic circuit and has a compensating cylinder (3z) and a compensating piston (3k) guided therein by the energy accumulator, eg return spring (3f).

8. Door opener according to claim 7, characterized in that with the compensating piston (3k) cooperating force accumulator (3f) is dimensioned so that the energy accumulator builds a hydraulic pressure when opening the door, which is able, the locking member or the Return working piston (2k) to the locked position.

9. Door opener according to claim 8, characterized in that the compensating piston (3k) cooperating force accumulator (3f) is dimensioned so that the energy accumulator builds a hydraulic pressure when opening the door, which is able to open the door latch (1) to move together with the locking member or the working piston (2k) in the position in which the door latch (1) in the closed position of the door in

Locking position is and / or with the lock latch (90) is in abutment.

10. Door opener according to one of the preceding claims, characterized in that the force accumulator as preferably mechanical spring means

(33) formed without interposition of the hydraulic circuit with its one end to the locking member or the working piston (2k) or the door latch (1) and is supported at its other end on the housing (6) of the door opener or on a component disposed therein.

11. Door opener according to one of the preceding claims, characterized in that the valve (5) as a valve with an axially movable valve tappet (5v) is formed.

12. Door opener according to claim 11, characterized in that the valve tappet (5v) has two axially offset from one another and at an angle, preferably arranged perpendicular to the longitudinal axis, offset from one another crossed flow channels.

13. Door opener according to claim 11 or 12, characterized in that the valve (5) is designed as an electric solenoid valve.

14. Door opener according to claim 13, characterized in that the solenoid valve has a movable valve stem (5v), as

Armature of the solenoid valve is formed.

15. Door opener according to claim 13 or 14, characterized in that the valve tappet (5v) for switching the solenoid valve between

Working and quiescent power is designed to be displaceable about its longitudinal axis by a predetermined angle, preferably 90 ° rotatable along its longitudinal axis.

16. Door opener according to one of the preceding claims, characterized in that in the hydraulic circuit (16) downstream of the

Balance piston (3k) of the return device (30) a check valve

(4) is arranged.

17. Door opener according to one of the preceding claims, characterized that in the hydraulic circuit, a preferably adjustable pressure relief valve is arranged parallel to the check valve (5).

18. Door opener according to one of the preceding claims, characterized in that a with the door latch (1) and / or the working piston (2, 2k) cooperating holding device (12) is provided which the door latch (1) or the working piston (2 , 2k) locked in an open position of the door after opening the door and on closing, preferably by the latch (90) is releasable.

19. Door opener according to one of the preceding claims, characterized in that with the door latch (1) and / or the working piston (2, 2k) cooperating intermediate stop (11) is provided which the

Door opener latch (1) is locked in a position already partially recovered after the door is opened and is preferably releasable by the latch (90) when closing the door.

20. Door opener according to one of the preceding claims, characterized in that a lock latch actuating device (12) is provided, which cooperates with the lock latch (90) during opening and / or closing of the door in the sense of the lock latch except stop position with the door opener latch (1) or to bring into the stop position with the door opener latch (1).