EP2597234A2 - Blocking device for a door, preferably with a door closer - Google Patents

Abstract

The device (1) has a sliding element (2g) comprising a check counter-element (15) movement-connected with the sliding element. The check counter-element is switched between a closed switching position and a released switching position during movement in a sliding rail (2f) by cooperation with switching elements (16, 17) mounted in the sliding rail. A passing position or a blocking position between a locking element (14) and the check counter-element is adjusted depending on the switching positions of the locking element and/or the check counter-element.

Description

The invention relates to a locking device for a rotatably mounted in a door frame door leaf of a door in the open position, preferably with a door closer.

It is assumed in the invention of known locking devices having the features of the preamble of claim 1.

Such locking devices may be formed as components of Gleitarm door closers by the force transmitting linkage is designed with slide rail and sliding arm as a locking device.

From the DE 88 05 834 U1 a mechanical locking device for a door with a Gleitarm-door closer is known, in which in the slide as Locking a leaf spring lever is arranged with a stop cam. The stop cam interacts with the sliding element of the door closer sliding arm guided in the slide rail. The stop cam has a bevel, which is overridden when opening of the slider under appropriate deflection of the leaf spring. In the determined open position of the door, the slider is in abutment against a steeper stop surface of the stop cam. In order to resolve the finding, the door must be overridden. For this purpose, a relatively high force must be applied in the closing direction by hand on the door to deflect the stop cam by pressing the sliding member on the steep stop surface.

The EP 0 321 649 A2 describes an electrically switchable locking device for a door with a sliding arm door closer. Again, the locking device is integrated in the slide rail Gleitarmgestänges. In this case, the locking device is always on / off electrically. For this purpose, the locking device has an arranged in the slide electromagnet. The spring-loaded blocking element is likewise designed as a spring-loaded stop cam, which has two different bevels in order to cooperate with the sliding element of the sliding arm. The electrical circuit via the electromagnet is carried out in that the spring-loaded stop cam is supported on the armature plate of the electromagnet. As long as the electromagnet is turned off, the spring-loaded stop cam can be suppressed when opening and closing with appropriate deflection of the armature plate. When the electromagnet is turned on and thereby the armature plate is electrically held, however, the relatively strong spring connected between the armature plate and the stop cam must be overpressed to overpress the stop cam. For this must be for the overpressure in the closing direction In conjunction with the steep stop surface, a very high overpressure force can be manually applied to the door leaf. Another disadvantage results from the noise when resetting under the action of the strong spring.

The WO 2007/069926 A2 describes a braking device comprising a housing, a sliding element and spring-loaded elements which press the sliding element against the housing.

Object of the present invention is to develop a locking device of the type mentioned, which is comfortable to handle without significant noise.

According to the invention, this object is achieved with the subject matter of patent claim 1.

The switchable design of the counter-locking element ensures that the locking device is released for the door closer without disturbing noise. An additional energy source for switching the blocking counter element is not needed.

The subject matter of claim 1 is a locking device for a door with a door frame rotatably mounted in a door frame. The door can but does not have to be equipped with a door closer. It is essential that the locking device has a arranged between the door and door frame sliding arm and a slide, in which the sliding arm is guided. In the slide the locking device is mounted. This includes a blocking element, which in the Slide rail is arranged for cooperation with the sliding member to determine the door leaf in an open position. The blocking element is movably mounted in a sliding block in a first embodiment of the locking device and movable between a blocking switching position and a releasing switching position, wherein the blocking element protrudes in its blocking switching position in the sliding of the sliding member and not in its releasing position in the sliding of the sliding member protrudes. In the second embodiment, the blocking element is not movably mounted in the slide rail. The blocking element projects permanently into the sliding path of the sliding element in this embodiment. The function of the locking device in both embodiments is to determine the door leaf in an open position under stop position of the sliding element on the standing in stop position blocking element. In the first embodiment in which the blocking element between a blocking position and a release position is switchable, the locking device or the locking member may be formed electrically switchable, for example with a cooperating with the locking element electrical actuator, such as electromagnet. However, the locking device can also be designed as a purely mechanical device, for example with a spring acting on the blocking element. In the second embodiment, the blocking element projects permanently into the sliding path of the sliding element as a rigid stop for the sliding element

In all embodiments according to the invention, it is provided as an essential feature that the sliding element has a blocking counter element immovably connected to the sliding element. The locking counter-element may be stored in a preferred embodiment in or on the sliding member. However, it can also be connected via a gear with the sliding element. It is essential that the blocking counter element in the movement of the Moving slider is moved. It is also essential that the locking counter-element can assume different switching positions, namely a blocking switching position and a releasing switching position. In order to switch the locking counter-element in these switching positions, it is provided that the locking counter-element is forcedly connected during its movement in the slide by cooperating with a mounted in the slide rail switching element or more mounted in the slide rail switching elements. In the case of the above-explained first embodiment of the locking element as a switchable blocking element, which may have a blocking switching position and a releasing circuit, with the switchable locking counter-element a passing position or a blocking position between the locking element and the locking counter-element adjustable whereby this adjustability is dependent on the switching position of Locking elements and the switching position of the counter-locking element. In the passing position, the sliding element with the blocking counter element can pass through the blocking element. In the blocking position, the blocking counter element of the sliding element can not pass the blocking element without the blocking element being deflected separately from the sliding path for passing. The latter requires, for example, the overpressure of a spring acting on the blocking element in the sliding path, for example by applying appropriate overpressure by hand to the door leaf in the closing direction or in the opening direction, depending on the direction in which the blocking element is blocked.

The Passierstellung invention between the locking element and the sliding element can be obtained, for example, when the blocking element is connected in its blocking switching position and at the same time the locking counter-element in its releasing switching position. The releasing switching position of the counter-locking element can, for example, after a determination in an open position the door can be obtained by switching operation of the locking counter-element to move after the determination of the door leaf in the closed position, without the blocking switching position of the blocking element must be canceled. In addition, the passing position between the locking element and the sliding element is obtained when the blocking element is in its releasing position and at the same time the locking counter-element in any switching position, ie in releasing or in blocking switching position. This Passierstellung can be obtained solely by the circuit of the blocking element.

In the case of the aforementioned second embodiment of the locking element as a permanent in the sliding of the sliding element projecting stop, with the switchable locking counter-element also a passing position and a blocking position between the locking element and the locking counter-element adjustable. In this case, the adjustability, however, depends only on the switching position of the locking counter-element.

As an essential feature of the inventive solution - as mentioned above - provides that the locking counter-element is switched in cooperation with at least one mounted in the slide rail switching element, namely automatically when the door is moved in the opening direction and / or in the closing direction. The blocking counter element can occupy a blocking position or a plurality of blocking positions and a release position or a plurality of release positions and possibly also intermediate positions via this circuit. The locking counter-element can pass through these switching positions in the manner of a sequence. The change of these switching positions can be done by repeated successive opening and / or closing movements of the door leaf. The sliding element of the Sliding arm thus cooperates with the at least one arranged in the slide rail switching element, ie the slider runs past this or at least relative to this out or away and thus causes the circuit of the locking counter-element.

As for the arrangement of the switching elements, it may be provided in preferred embodiments that the switching element is arranged so that it engages with the locking counter-element when the sliding element is moved in the opening direction and / or when the sliding element is moved in the closing direction , The term "the counter-locking element comes into engagement with the switching element" is understood to mean an interaction of the counter-blocking element with the switching element with switching of the blocking counter-element. This switching can be directional, i. Depending on whether the sliding element is introduced during its movement in the opening direction or during its movement in the closing direction.

In particularly preferred embodiments, it is provided that a first switching element is arranged in the slide rail in the closing direction in front of the blocking element and that a second blocking element is arranged in the slide rail in the closing direction after the blocking element. This arrangement of the switching elements can be particularly structurally simple and practicable carried out in that at least one of the switching elements in a region of an upstream in the closing direction or downstream in the closing direction end face of the bearing device is arranged.

Preferred embodiments may also provide that the blocking element has a bearing device arranged in the slide rail and the switching element or one of the switching elements in a region of a in Closing direction is arranged upstream or downstream in the closing direction end face of the bearing device.

Preferred embodiments may provide that the switching element or at least one of the switching elements is arranged so that it engages with the locking counter-element, when the sliding element from a locking position in which the locking counter-element is in abutment with a stopper portion of the locking element, in the opening direction is moved.

In special embodiments can also be provided that the blocking element acts as a switching element on the locking counter-element and insofar as the blocking element is a switching element when the blocking counter-element passes through the blocking element during the closing movement and / or during the opening movement.

In order to achieve particularly high switching safety, it can be provided that the switching element or the switching elements protrude on a side facing the blocking counter element into the sliding path of the sliding element and / or of the blocking counter element.

The design of the switching element gives particularly high reliability, if it is provided that the switching element or the switching elements is rotatably mounted or are and has a protruding into the sliding of the sliding element in the slide rail triangular switching nose and formed as a spring portion or have. In this case, the spring may preferably be formed in the manner of a leaf spring. The switching nose may have a preferably vertical switching portion and a sliding portion exhibit. Preferably, the switching section in this case has a run-on slope which is steeper than that of the sliding section.

As far as the design of the counter-locking element is concerned, it is provided in particularly preferred embodiments that the blocking counter-element is arranged on a side of the sliding element facing the blocking element. This is a particularly high reliability in a compact design possible.

It is also structurally advantageous if the locking counter-element is rotatably mounted in or on the sliding element. It can be provided that the locking counter-element is rotatably mounted in at least two offset with respect to its rotational position locking positions in or on the sliding member. Preferred embodiments provide that the locking counter-element is rotatably mounted in or on the sliding element in at least four offset by 90 ° detent positions.

High reliability allow embodiments in which it is provided that the locking counter-element on one of the locking device facing end side has at least one to the direction of movement of the sliding element optionally transversely or longitudinally switchable locking rib. In preferred embodiments, the locking counter-element on two spaced-apart barrier ribs. It is advantageous if the clear distance between the two barrier ribs is greater than the width of the blocking element. This means that the Passierstellung can be realized in these embodiments so that when passing the locking element, the blocking element between the two locking ribs of the locking counter-element is arranged when the locking counter-element so is connected, that the two barrier ribs are arranged along the direction of movement of the sliding element.

Embodiments that have a particularly good switchability of the locking counter-element, provide that the at least one barrier rib or two locking ribs are formed as an L-shaped locking rib or locking ribs.

The invention will now be explained in more detail with reference to exemplary embodiments.

Fig. 1

eine an einer Tür angeordnete erfindungsgemäße Feststelleinrichtung für einen Türschließer;

Fig. 2a

die Feststelleinrichtung in Fig. 1 in räumlicher Darstellung mit Blickrichtung schräg von unten;

Fig. 2b

die Feststelleinrichtung in Fig. 1 in einer schematischen Schnittansicht;

Fig. 3

ein Gleitstück aus Fig. 2 in einer räumlichen Explosionsdarstellung;

Fig. 4a

das Gleitstück aus Fig. 3 in der Draufsicht mit dem Sperrgegenelement in Sperrstellung;

Fig. 4b

das Gleitstück aus Fig. 3 in der Draufsicht mit dem Sperrgegenelement in Freigabestellung;

Fig. 5a

die Feststelleinrichtung in Fig. 2 mit Gleitelement in der Sperrposition;

Fig. 5b

das Gleitstück in Fig. 5a in der Draufsicht mit dem Sperrgegenelement in Sperrstellung;

Fig. 6a

die Feststelleinrichtung in Fig. 2 mit Gleitelement in einer ersten Freigabeposition;

Fig. 6b

das Gleitstück in Fig. 6a in der Draufsicht mit dem Sperrgegenelement in Zwischenstellung;

Fig. 7a

die Feststelleinrichtung in Fig. 2 mit Gleitelement in einer zweiten Freigabeposition;

Fig. 7b

das Gleitstück in Fig. 7a in der Draufsicht mit dem Sperrgegenelement in Freigabestellung,

Fig. 8a

die Feststelleinrichtung in Fig. 2 mit Gleitelement in einer ersten Schließposition;

Fig. 8b

das Gleitstück in Fig. 8a in der Draufsicht mit dem Sperrgegenelement in Freigabestellung;

Fig. 9a

die Feststelleinrichtung in Fig. 2 mit Gleitelement in einer zweiten Schließposition;

Fig. 9b

das Gleitstück in Fig. 9a in der Draufsicht mit dem Sperrgegenelement in Freigabestellung;

Fig. 10a

die Feststelleinrichtung in Fig. 2 mit Gleitelement in einer dritten Schließposition;

Fig. 10b

das Gleitstück in Fig. 10a in der Draufsicht mit dem Sperrgegenelement in Freigabestellung;

Fig. 11a

die Feststelleinrichtung in Fig. 2 mit Gleitelement in einer letzten Schließposition;

Fig. 11 b

das Gleitstück in Fig. 11 a in der Draufsicht mit dem Sperrgegenelement in Freigabestellung;

Fig. 12a

die Feststelleinrichtung in Fig. 2 mit Gleitelement in einer ersten Öffnungsposition;

Fig. 12b

das Gleitstück in Fig. 12a in der Draufsicht mit dem Sperrgegenelement in Freigabestellung;

Fig. 13a

die Feststelleinrichtung in Fig. 2 mit Gleitelement in einer zweiten Öffnungsposition;

Fig. 13b

das Gleitstück in Fig. 13a in der Draufsicht mit dem Sperrgegenelement in Zwischenstellung;

Fig. 14a

die Feststelleinrichtung in Fig. 2 mit Gleitelement in einer dritten Öffnungsposition;

Fig. 14b

das Gleitstück in Fig. 14a in der Draufsicht mit dem Sperrgegenelement in Sperrstellung.

Show it

Fig. 1

a door closing device according to the invention arranged on a door;

Fig. 2a

the locking device in Fig. 1 in spatial representation with a view obliquely from below;

Fig. 2b

the locking device in Fig. 1 in a schematic sectional view;

Fig. 3

a slider out Fig. 2 in a spatial exploded view;

Fig. 4a

the slider off Fig. 3 in plan view with the locking counter-element in locking position;

Fig. 4b

the slider off Fig. 3 in the plan view with the locking counter-element in the release position;

Fig. 5a

the locking device in Fig. 2 with sliding element in the locked position;

Fig. 5b

the slider in Fig. 5a in plan view with the locking counter-element in locking position;

Fig. 6a

the locking device in Fig. 2 with sliding element in a first release position;

Fig. 6b

the slider in Fig. 6a in the plan view with the locking counter-element in the intermediate position;

Fig. 7a

the locking device in Fig. 2 with sliding element in a second release position;

Fig. 7b

the slider in Fig. 7a in the plan view with the locking counter-element in the release position,

Fig. 8a

the locking device in Fig. 2 with sliding element in a first closed position;

Fig. 8b

the slider in Fig. 8a in the plan view with the locking counter-element in the release position;

Fig. 9a

the locking device in Fig. 2 with sliding element in a second closed position;

Fig. 9b

the slider in Fig. 9a in the plan view with the locking counter-element in the release position;

Fig. 10a

the locking device in Fig. 2 with sliding element in a third closed position;

Fig. 10b

the slider in Fig. 10a in the plan view with the locking counter-element in the release position;

Fig. 11a

the locking device in Fig. 2 with sliding element in a last closed position;

Fig. 11b

the slider in Fig. 11 a in plan view with the locking counter-element in the release position;

Fig. 12a

the locking device in Fig. 2 with sliding element in a first opening position;

Fig. 12b

the slider in Fig. 12a in the plan view with the locking counter-element in the release position;

Fig. 13a

the locking device in Fig. 2 with sliding element in a second open position;

Fig. 13b

the slider in Fig. 13a in the plan view with the locking counter-element in the intermediate position;

Fig. 14a

the locking device in Fig. 2 with sliding element in a third opening position;

Fig. 14b

the slider in Fig. 14a in the plan view with the locking counter-element in the blocking position.

FIG. 1 shows a door 3 with a fixed door frame 3r and a hinged on bands 3b on the door frame door leaf 3f. The door leaf 3f can be closed by means of a door closing device. The door closing device comprises a sliding arm door closer 2. The sliding arm door closer 2 is formed in the illustrated embodiment as a seated top door closer, which has a resting mounted door closer housing 2h. In the door closer housing 2h a closer shaft 2w is rotatably mounted. This cooperates with a closing spring arranged in the door closer housing and a hydraulic damping device likewise arranged in the door closer housing. The closing spring and the hydraulic damping device are not shown in the figures. They may be conventional. With the closer shaft 2w a sliding arm 2s is non-rotatably connected, which in an am Upper horizontal rail of the door frame 3r mounted slide 2f is slidably guided. In the slide rail 2f, a locking device 1 is arranged, which cooperates with the guided in the rail slide arm 2s to determine the door leaf 3f in an open position.

The construction of the locking device 1 and the interaction of the sliding arm 2s with the locking device 1 will be described below with reference to FIGS FIGS. 2 to 14 described in more detail.

At the free end of the slide arm 2s, a sliding member 2g is rotatably mounted, which is linearly guided in the slide rail 2f and cooperates with a locking element 14 of the mounted in the slide 2f locking device 1. When the door is opened, the sliding member 2g mounted on the sliding arm 2s is opened in the opening direction O, and when the door is closed, the sliding member 2g is moved in the closing direction S opposite to the opening direction O. The opening direction O and the closing direction S are in Fig. 1 and in the other figures by a double arrow marked O and S drawn.

As in FIG. 1 As can be seen, the slide rail 2f is mounted on the upper portion of the door frame 3r. The slide 2f is formed in the illustrated embodiment as an open at the bottom U-profile. The two mutually facing lower edges of the U-legs are angled towards each other and form bearing surfaces for the sliding element 2g formed L-shaped guide surfaces 12 (see Fig. 3 ). When the door 3 is opened manually, the sliding arm 2s guided in the slide rail 2f is pivoted. In this case, the closer shaft rotates 2w, whereby a arranged in the closer housing 2h closing spring is tensioned. The Closing movement then takes place automatically under the action of the door closer, characterized in that the tensioned during the opening movement closing spring of the door closer relaxes. During the closing movement, the sliding arm 2s guided in the slide rail 2f is pivoted back. The sliding element 2g runs in the slide rail in the closing direction S.

The Fig. 2a and 2b show the structure of the arranged in the slide locking device 1.The locking device has a two-armed lever 14. The free end of the one lever arm protrudes, acted upon by a compression spring 14 f, in the sliding path of the sliding member 2 g. The free lever end acts as a blocking stop with the sliding element 2g together. The locking device 1 has a bearing body with a substantially parallelepiped-shaped construction. The bearing body is received in the slide rail. It is fastened to the inside of the slide rail 2f on the leg connecting the two U-profiles by means of two fastening screws 13. In a parallel to the longitudinal axis of the locking device 1 arranged recess formed as a two-armed lever locking element 14 is added. The two-armed lever 14 is rotatably mounted about a horizontally arranged transversely in the bearing body bearing axis 14a.

The sliding element 2g cooperating with the blocking element 14 will now be described in more detail. It is essential that the sliding element 2g has a blocking counter element 15. The locking counter-element 15 is movably connected to the sliding member 2g. In the illustrated embodiment, the locking counter-element is rotatably mounted in the sliding member and arranged so that it is rotatable on the blocking element 14 facing side of the sliding member 2g. The locking counter-element 15 is rotatably mounted in the sliding member 2g about a vertical axis of rotation 15v.

The locking counter-element 15 is switched over in the slide rail mounted switching elements 16, 17 in successive continuous switching positions. The switching positions are formed by different rotational positions of the counter-locking element 15. The circuit is carried out successively in latching steps automatically by the action of the switching elements 16, 17, when the sliding member 2g is moved in the slide rail.

Fig. 3 shows the sliding member 2g in a perspective exploded view. The blocking counter element 15 can be inserted into a bearing recess of the sliding element 2g and is rotatable about the vertical axis oriented perpendicular to the horizontal guide axis of the sliding element 2g. The locking counter-element 15 has a cross-slotted bearing journal, which has at its circumference four offset by 90 ° locking lugs 15r, which engage in recesses 2gr of the bearing recess.

On the bearing journal of the locking counter-element 15, a flat circular disc is arranged, which has on its the locking device 1 facing end side two spaced apart L-shaped locking ribs 15s. The clear distance between the two barrier ribs 15s is greater than the width of the locking element 14 of the locking device 1, ie at least greater than the width of the blocking stop formed on the free end of the locking element 14 locking lugs 15r and the recesses 2gr are arranged so that the locking ribs 15s can be arranged parallel to the guide axis of the sliding member 2g in two 180 ° spaced apart rotational positions of the locking counter-element 2g and in two 180 ° spaced apart rotational positions perpendicular, that are transverse to the guide axis of the sliding element 2g can be arranged. This vertical rotational position ( Fig. 4a ) is the blocking position in which one of the locking ribs 15s forms a stop for the blocking stop of the locking element 14 to determine the door leaf 3 in the open position. The parallel rotational position ( Fig. 4b ) is the release position in which the blocking element 14 can slide between the two locking ribs 15 s, so that the door closer 2 is able to close the door 3. The one end portion of the barrier ribs 15s is L-shaped angled, wherein the angled leg merges arcuately into the barrier rib. The other end portion of the barrier ribs 15s is formed as a recessed heel 15a.

Such as out FIG. 2b can be seen, protrude from the bottom of the bearing body of the locking device 1, the two switching elements 16, 17. They are spring-loaded direction-dependent switching elements 16, 17. They are, as already mentioned, provided for actuating the locking counter-element 15. The switching elements 16, 17 cooperate for this purpose with the locking ribs 15 s to the locking counter-element 15 each step by a certain angle, for example 90 ° to rotate about the axis of rotation 15 a, when the sliding member 2 g in the relevant switching direction on the underside of the locking device 1 slides past , The two switching elements 16, 17 are arranged in the two end portions of the locking device 1 in slot-shaped recesses. A first switching element 16 is disposed in the front end face end portion of the bearing body of the front end portion of the bearing body of the locking device 1. A second switching element 17 is arranged in the rear end-side end portion of the Lagerkörprs the locking device 1. When opening the door 3, the sliding element 2g passes first the first switching element 16 and then the second switching element 17. The switching elements 16 and 17 are rotatably mounted about their horizontal axis of rotation 16a and 17a and have a protruding from the bottom of the locking device 1 protruding triangular switching nose and one as a leaf spring formed section. The switching nose has a vertical switching section and an oblique sliding section ( Fig. 2b ), which bears against the inner wall of the recess. The switching element 16, 17 is fixed in its position. If the oblique sliding section loaded, the switching nose is deflected and formed as a leaf spring portion elastically deformed. If the vertical switching section is loaded, the switching element remains in its position and transmits the switching force to the locking counter-element 15. The switching elements 16 and 17 are arranged eccentrically to the rotational axis of the counter-locking element 15 so that they can attack on one of the locking ribs 15s, as further below described. Between the switching lugs of the switching elements 16, 17, a vertical offset v is formed (see Fig. 2b ). The switching elements 16 and 17 are formed of an elastic sheet material, for example made of spring steel or of a suitable plastic.

The function of the locking device 1 is now based on the Fig. 5 to 14 described in more detail: formed by the two-armed lever locking member 14 forms with the acted upon by the spring 14 f the lever end the blocking stop for the sliding element 2g. The blocking element 14 can take two switching positions by pivoting the two-armed lever, namely a blocking position in which it protrudes under the action of the spring 14 in the sliding of the sliding member 2g and a release position in which the lever end against the action of the spring 14f pivoted out of the sliding path is. The sliding member 2g, which is provided with the locking counter-element 15, by the different switching positions of the locking counter-element also in a blocking position, ie blocking switching position, and in a release position, ie releasable switching position switchable. In the blocking position is the blocking counter element with its locking ribs across the Direction of movement of the sliding element. In the release position, the locking counter-element 15 is parallel with the blocking ribs to the direction of movement of the sliding element 2g.

The blocking stop of the locking lever 14 has at its in Fig. 5a right side a steeper slope than at its in Fig. 5a left stop side. The right abutment side forms the abutment side for the sliding element 2g running in the closing direction. The left stop side forms the stop side for the running in the opening direction slider.

The Fig. 5a and 5b show the locking device 1 in the locked position. The blocking element 14 protrudes with its free end of the lever, which forms the blocking stop, into the sliding path of the sliding element 2g, acted upon by the compression spring 14f.

The sliding element 2g is also connected in its blocking position, in which the locking ribs 15s of the counter-locking element 15 perpendicular, ie. are transverse to the longitudinal axis of the sliding member 2g. The blocking stop 15 of the blocking element 14 facing the blocking rib 15s is at the blocking stop of the blocking element 14 in abutment position. The sliding element 2g alone can not pass under the effect of the closing force of the door closer, ie without a manual overpressure of the door in the blocking position standing blocking element 14 from this position out. For a manual overpressure of the door, a corresponding overpressure force must be manually applied to the door leaf to apply over the sliding member 2g on the blocking stop of the locking member 14 such a force that the locking lever 14 is pivoted against the action of the spring 14f from the sliding path, ie in Fig. 5a turned counterclockwise.

In the Fig. 6a and 6b If the sliding element 2g has been moved so far in the opening direction O, that the blocking rib 15s facing away from the blocking element 14 comes into contact with the switching section of the second switching element 17. Upon further movement of the sliding member 2g in the opening direction O, the counter-locking element 15 is now rotated counterclockwise until it engages again after a 90 ° rotation, as in Fig. 7a and 7b shown. The locking counter-element 15 is now in the release position, in which the blocking ribs 15s of the counter-locking element 15 are parallel to the longitudinal axis of the sliding member 2g, so that the blocking stop 14b of the blocking element 14 does not hinder the sliding path of the sliding element 2g and the sliding element 2g can pass the blocking element 14, in which the two barrier ribs 15s on the locking element 14, without the locking element 14 is deflected from its locked position, slide past, ie, when passing the blocking stop 14b between the two barrier ribs.

This means that starting from the in Fig. 7a and 7b shown position the sliding member 2g under sole action of the door closer 2 back in the closing direction S can be moved under a passing of the locking element 14. In this case, the switching nose of the second switching element 17 meets the projecting from the barrier rib 15s short L-leg. The switching nose slides with elastic deformation of the leaf spring-shaped upper portion of the second switching element 17 via the barrier rib 15s and further parallel to the other L-leg of the barrier rib, as in Fig. 8a and 8b shown.

Fig. 9 shows the beginning of the passage of the locking element 14, which is substantially silent, because to pass a deflection of the Locking elements 14 does not occur, so that even a noisy resetting of the locking element under the action of the spring 14f is not incurred.

10a and 10b show a position of the slider 2g just before the closing position, in the analogy to Fig. 7 the first switching element 16 is elastically deformed.

In Fig. 11 a and 11 b, the sliding element 2g has assumed its starting position with the door 3 closed.

In the Fig. 12 to 14 the switching of the locking counter-element 15 is shown in the locked position.

In Fig. 12 is the switching lug of the first switching element 16 on one of the locking ribs 15s of the locking counter-element 15, so that the locking counter-element 15 upon further opening of the door 3 in the rotated by 90 ° locking position (see Fig. 14b ) is brought. The Fig. 13 show an intermediate position, the Fig. 14 the blocking position.

Upon further opening of the door 3, the blocking element 14 is deflected out of the sliding path by the blocking ribs 15s against the spring force of the return spring 14f. This can be done due to the relatively flat run-up slope of the stop surface of the locking element 14 in the opening direction, without having to apply a large overpressure force on the door. The blocking element 14 snaps back into the blocking position after passing the sliding element 2g. The sliding member 2g takes on the further opening of the door 3 in Fig. 5 shown position in which the door is locked.

LIST OF REFERENCE NUMBERS

1

Locking device

2

door closers

2f

slide

2g

Slide

2h

door opener housing

2g

recess

2s

sliding arm

2w

closer shaft

3

door

3r

doorframe

11

Zapfenschraube

12

guideway

13

fixing screw

14

blocking element

14a

edition

14f

Return spring

15

Latch receiving means

15a

paragraph

15r

locking lug

15s

blocking rib

15v

vertical axis of rotation

16

first switching element

16a

axis of rotation

17

second switching element

17a

axis of rotation

18

locking pin

Claims (15)

Locking device (1) for a door leaf (3f) rotatably mounted in or on a door frame (3r) of a door for fixing the door leaf (3f) in an open position, preferably with a door closer, comprising - A slide rail (2f) with a in the slide rail (2f) via a sliding element (2g) slidably guided sliding arm (2s), wherein the slide (2f) on the door frame (3r) immovably mounted and the sliding arm (2s) on the door (3f ) is rotatably mounted or the slide rail (2f) on the door leaf (3f) mounted immovably and the sliding arm (2s) on the door frame (3r) is rotatably mounted, - A in the slide rail (2f) mounted blocking element (14) which is immovable for cooperation with the sliding element (2g) in the slide (2f) and permanently protrudes into the sliding of the sliding element or movable between a blocking switching position and a releasing switching position is, wherein the blocking element in its blocking switching position in the sliding path of the sliding element (2g) protrudes and in its releasing switching position does not protrude into the sliding path of the sliding element (2g), characterized, in that the sliding element (2g) has a blocking counter element (15) which is movably connected to the sliding element (2g), - That the locking counter-element (15) is forced in its movement in the slide by cooperation with a mounted in the slide rail switching element (16, 17) or more mounted in the slide rail switching elements (16, 17) between a blocking switching position and a releasing switching position . - That depending on the switching position of the blocking element (14) and / or the switching position of the counter-locking element (15) is a passing position or a blocking position between the locking element (14) and the locking counter-element (15) is adjustable. Locking device according to one of the preceding claims,
characterized,
that the locking counter-element (15) on a side facing the locking element (14) side of the sliding element (2g) is arranged. Locking device according to one of the preceding claims,
characterized,
in that the blocking counter element (15) is rotatably mounted in or on the sliding element (2g). Locking device according to claim 3,
characterized,
in that the blocking counter element (15) is rotatably mounted in or on the sliding element (2g) in at least two latching positions offset with respect to its angle of rotation. Locking device according to one of the preceding claims,
characterized,
that the blocking counter element (15) on one of the locking device (1) facing end side at least one to the direction of movement of the sliding element (2g) optionally transversely or longitudinally switchable locking rib (15s). Locking device according to claim 5,
characterized,
in that two spaced-apart barrier ribs (15s) are provided. Locking device according to claim 6,
characterized,
in that the clear distance between the two barrier ribs (15s) is greater than the width of the blocking element (14). Locking device according to one of the preceding claims,
characterized,
in that the switching element (16) is arranged so that it engages with the locking counter-element (15) when the sliding element (2g) is moved in the opening direction and / or in the closing direction. Locking device according to one of the preceding claims,
characterized,
that a first switching element (17) in the slide rail (2f) is disposed in the closing direction in front of the locking element (14),
that a second switching element (16) in the slide rail (2f) is disposed in the closing direction after the locking element (14). Locking device according to one of the preceding claims,
characterized,
in that the blocking element (14) has a bearing device arranged in the slide rail (2f) and arranges the switching element (16, 17) or one of the switching elements (16, 17) in a region of an end face of the bearing device which is upstream in the closing direction or downstream in the closing direction is. Locking device according to one of the preceding claims,
characterized,
that the switching element (17) or at least one of the switching elements (16, 17) is arranged so that it engages with the locking counter-element (15), when the sliding member (2g) from a blocking position, in which the locking counter-element (15) with a stop portion of the locking element (14) is in the stop, is moved further in the opening direction O. Locking device according to one of the preceding claims,
characterized,
that the blocking element (14) acts as a switching element on the blocking counter element (15) and in this respect the blocking counter element (14) represents a switching element (16, 17) when the blocking counter element (15) passes through the blocking element during the closing movement and / or during the opening movement. Locking device according to one of the preceding claims,
characterized,
in that the switching element (16) or the switching elements (16, 17) projects into the sliding path of the sliding element (2g) on a side facing the blocking counter element (15) into the slide rail. Locking device according to one of the preceding claims,
characterized,
that the switching element (16) or the switching elements (16, 17) are rotatably mounted and has a triangular-shaped switching nose protruding into the sliding path of the sliding element (2g) and a section formed as a spring. Locking device according to claim 14,
characterized,
in that the switching nose has a vertical switching section and an inclined sliding section.

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