EP3095934A1 - Device for detecting a locking position - Google Patents

Abstract

The invention relates to a device for detecting a locking position of a mortise lock (10). The device is configured to be mounted in an opening (11) of the mortise lock (10) provided for a lock cylinder, comprising at least one feeler element (3) connected to the actuation mechanism of the lock (12) of the mortise lock (10). 10) is engaged, wherein the probe element (3) is rotatably mounted. The rotation of the probe element (3) is detected by a sensor (2) within the device.

Description

The present invention relates generally to a device for detecting a latch position in a mortise lock. Specifically, the device according to the invention is adapted to detect the locking position in a self-locking anti-panic lock. In addition, the invention relates to a method for mounting the device according to the invention and also to a method for detecting a locking position.

BACKGROUND OF THE INVENTION

Doors with self-locking locks have the advantage that they are always locked (locked). If the door locks, the closed state is not only ensured by the (relatively easy to manipulate) trap; In addition, the bolt is automatically pushed by means of prestressed spring in a locked position. On the other hand, not only the case, but also the bolt is brought into an unlocked position upon actuation of the pusher from the inside. This is especially important for emergency exit doors in the event of fire or danger.

Self-locking locks can usually be combined with known lock cylinders, the lock cylinder is used to determine the access authorization from the outside. Thus, only with the help of a suitable key, that is, after successful determination of the access authorization, a part of the lock cylinder can be rotated, which then actuates the latch and / or the latch of the lock. Lock cylinders can detect access control using mechanical keys and / or electronic keys (transponders).

Instead of carrying out the access authorization with the aid of a lock cylinder, there is also the possibility of integrating an electronic access control function partially or even completely into one or both sides (outside and inside) of a door fitting; a separate lock cylinder is no longer necessary in such a case. Often it is expected of electronically secured doors that information about their locking state of a central monitoring unit are provided, so that a secure building closure can be ensured even without a guard tour. For this purpose, a detection of the locking position and the transmission of this status data via networks to the central station is required.

As an alternative to mechanically self-locking locks locking and unlocking can also be accomplished by motor drives. Here, information about the current latch position is an important feedback signal to the motor control.

For example, the application discloses EP 1 022 414 A1 a device for monitoring the position of a locking bolt of a motor-operated locking system. A first movement means, which is clearly in mechanical engagement with the locking bolt, and a second movement means, which is in mechanical engagement with the first movement means, signals the closing / open position of the bolt.

A preferred object of the present invention is to overcome disadvantages of known approaches for determining the bolt position, and in particular to provide solutions that are substantially completely integrated into an existing locking device - even subsequently - so that complex installation and wiring work for attaching external Bolt sensors omitted.

The solution according to the invention should therefore be easy to assemble, but also easy to disassemble. Finally, it is preferred that the device according to the invention can be subsequently inserted / installed in existing locks.

SUMMARY OF THE INVENTION

The device according to the invention and the method according to the invention are defined by the features of the independent claims. Advantageous embodiments emerge from the subclaims.

Preferred embodiments of the present invention or preferred combinations of features of the present invention will be described in the following exemplary embodiments.

The present invention generally relates to a device for detecting a latch position of a mortise lock. A mortise lock, often simply referred to as a lock or lock case, is a door lock with latch and latch. Known mortise locks comply with DIN 18 251 for installation in butt doors, rebated doors or tubular frame doors. For example, mortise locks may have a Buntbart, tumbler (chubb) or profile cylinder lock. The device according to the invention is preferably to be seen as a kind of retrofit solution, which is specially adapted to be used in existing known mortise locks. For example, in a profile cylinder lock, there is an opening into which a lock cylinder can be inserted. The cam (often referred to as a locking lug) comes with inserted lock cylinder with the mechanism for actuating the bolt in engagement. In other words, the lock bit is the component of a lock cylinder with the task of forward and / or push back the bolt upon rotation of the lock bar to lock / unlock the door.

The device according to the invention is particularly advantageous in connection with an anti-panic lock. In the case of a normal panic lock, it is always possible to retract the latch and latch at the same time from the inside by actuating the handle (door handle). This means that a properly completed (latch and bolt are too) door system can be opened from the inside via a handle operation, without using a key. This type of locks is summarized by the term panic lock (often referred to as an anti-panic lock). After activating a panic lock, the bolt must be manually extended with the key again. A special solution is the self-invigorating panic lock. By pressing the latch not only the latch and the latch are retracted, but also the internal self-locking mechanism is biased. As soon as the door closes again (falls), by pressing an additional tax trap, the bolt is advanced again. As a result, the door is always closed with latch and bolt. This is a purely mechanical solution, so that no power supply and associated cabling is necessary.

In such locks, it is therefore not necessary to transfer the latch with the help of the lock bit from the open position to the closed position. The cam is needed only to open the latch from the outside. In so-called fitting solutions, this opening process can also be achieved via hardware and mechanics in the fitting. For example, the pusher pin of the inner door latch can always be operatively connected (coupled) to the nut of the mortise lock. Thus, an actuation of the outer handle only after successful authentication leads to the operation of the bolt, a coupling between the outer handle and pusher pin can be made or interrupted. For example, if a person has successfully authenticated, then a temporary coupling between the outer handle and pusher pin is made. The anti-panic lock works as if it's always stuck with the nut coupled internal handles are actuated, ie, the door can be opened. In such an embodiment, no lock cylinder is necessary for the authentication, ie, the existing opening in the lock can remain empty.

It is precisely here that the device according to the invention starts, that is, the device is configured to be insertable and fixable in the opening of the mortise lock provided for the lock cylinder.

Preferably, the device according to the invention is partially modeled on the dimensions of a lock cylinder. In addition, the device according to the invention has at least one feeler element, which is essentially modeled on a lock bit / locking lug of a lock cylinder and engages with the actuating mechanism of the bolt or the latch of the mortise lock or at least. According to the invention, it is sufficient if the probe element can feel at least one position of the bolt. For example, it may already be sufficient if the closed position of the bolt can be latched. For this purpose, a contact of the probe element with the bolt or the locking mechanism in this position is sufficient. If the locking position changes, the position of the feeler element is also changed. A change in the locking position can already be determined.

According to a further preferred embodiment, it is also possible to distinguish between an open and locked position, for example by clearly detecting (sensing) both positions. When the latch is in the open position, this is detected with the probe element in a first position. If the bolt is in the closed position, this change is also detected by the feeler element. Finally, according to a further preferred embodiment, it is also possible to detect or to sense intermediate positions.

Preferably, the probe element is rotatably mounted similar to the cam of a lock cylinder, preferably mounted rotatably about a (virtual) axis. In other words, when the latch translates from the open position to the closed position (and vice versa), this translates into rotational movement of the probe element. The probe element is located in a different "angular position" depending on the position of the bolt. This rotation and / or at least one angular position of the probe element can be detected by means of a sensor, which is preferably attached to the device or within the device. As the device preferably at the lock is secured against rotation, corresponds to the relative rotation or angular position of a relative to the castle changed angular position.

Preferably, the device according to the invention comprises at least two mutually movable (rotatable) parts, which are preferably made of plastic. In addition, it is preferable that a part is inward with respect to the rotational movement and the second part is at least partially movable outside the inner part. Preferably, the outer part partially rotates about the inner part. It should be noted, however, that the term "rotary motion" is not equivalent to a full (360 °) turn; Rather, it is sufficient according to the invention if the two parts are designed to be rotatable relative to one another over a small angular range, for example 10 °, 20 °, 30 °, 40 °, 50 °.

The two parts are preferably annular in shape, that is to say with an inner ring element and an outer ring element, the ring elements preferably not extending over the entire 360 ° revolution. Rather, the ring elements according to the invention are "partially" ring elements or ring segments.

According to a further preferred embodiment, the two mutually movable parts are biased or loaded by an intermediate spring. If no external force acts on the feeler element, the feeler element is preferably in a starting position. Preferably, this starting position corresponds to the position corresponding to the unlocked locking position. According to another embodiment, this starting position can also correspond to the locked bolt position. The spring which exerts a force on the feeler element thus causes the feeler element to press against a part of the bolt or the locking mechanism. Preferably, this spring force is so small that the closing mechanism of the self-locking anti-panty lock is not adversely affected, that is, the spring force of the anti-panty lock for automatic extension of the bolt is not inhibited by the Tastfederkraft. The tactile spring force is only so great that it is ensured that the probe element in the corresponding position to be detected comes into contact with the bolt or the locking mechanism.

According to a particularly preferred embodiment, a magazine spring is used as the spring, which preferably has a rectangular base. The space of oval or rectangular magazine springs is exploited particularly advantageous, so that walls can take over the function of a guide. For example, in a space between the outer part and the inner part of a Magzinfeder used be, with the walls of the outer and inner part which are directed to the spring, take over the function of a guide.

According to other embodiments, other springs may also be used, for example coil springs or torsion springs.

According to a particular embodiment, the device according to the invention is specially adapted to a fitting solution in which the two fitting sides do not have to be screwed to the door leaf (see Fig. 1 ). In this fitting solution, the two fitting sides are pressed by a clamping element against the two sides of the door leaf, wherein the clamping element is configured so that it is arranged in the opening of the mortise lock, which is provided for the lock cylinder. In other words, both the clamping element and the device according to the invention are both arranged in the opening provided for the lock cylinder. Preferably, an inner contour of the inner part of the device according to the invention is configured complementary to the outer contour of the Verspannelements, ie, the device according to the invention can preferably be placed positively on the Verspannelement. This has the exemplary advantage that the device according to the invention can thus be easily secured against rotation.

Alternatively, instead of the bracing element, an additional wedge element can be inserted into the opening for the lock cylinder. This is suitable, for example, for hardware solutions in which the fittings are traditionally bolted to the door leaf, that is, when the opening for the lock cylinder remains free.

Finally, the present invention also relates to a method for detecting a locking position of a mortise lock comprising the steps of: providing a device according to the invention and inserting the device in the opening of the mortise lock, which is provided for receiving a lock cylinder and reading the signals of the sensor to determine whether the latch is in an open or closed position.

BRIEF DESCRIPTION OF THE DRAWINGS

Fig. 1

einen Türbeschlag mit integrierter Elektronik und Mechanik zur Detektion und Steuerung einer Zutrittsberechtigung;

Fig. 2

in einer Seitenansicht einen Schlosskasten aus dem Stand der Technik mit einer erfindungsgemäßen Vorrichtung in der Öffnung die für einen PZ-Schließzylinder vorgesehen ist;

Fig. 3

eine der der Fig 2 entsprechende, jedoch perspektivische Ansicht;

Fig. 4

das Tastelement in der entriegelten Stellung;

Fig. 5

mit dem Tastelement in der verriegelten Stellung; und

Fig. 6

nicht maßstabsgetreu die Form eines Profilzylinders.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the drawings. Show it:

Fig. 1

a door fitting with integrated electronics and mechanics for the detection and control of an access authorization;

Fig. 2

in a side view of a lock case of the prior art with a device according to the invention in the opening which is provided for a PZ-lock cylinder;

Fig. 3

one of the Fig. 2 corresponding, but perspective view;

Fig. 4

the probe element in the unlocked position;

Fig. 5

with the probe element in the locked position; and

Fig. 6

not to scale the shape of a profile cylinder.

DETAILED DESCRIPTION OF PREFERRED EMBODIMENTS

As described in the introduction, the invention relates to a device for detecting a locking position of a mortise lock 10, especially a self-locking anti-panic lock. FIG. 2 shows by way of example a side view of a known anti-Panikeinsteckschlosses 10 with a device mounted therein according to the invention. FIG. 3 equals to FIG. 2 However, the anti-Panikeinsteckschloss shows in a perspective view.

In a normal panic lock, you can always by the operation of the inner handle 210 (see Fig. 1 ), which is mounted via a pusher pin 204 with the nut 12 in operative connection, retract both the latch 13 and the latch 14 at the same time. This means that a closed by means of latch 13 and latch 14 door can be opened from the inside via a push operation (operation of the door handle), without using a key. In other words, the door can be unlocked from the inside and then opened without successful authentication (in panic situations). In self-locking anti-panic locks (the terms anti-panic locks and panic locks are synonymous used in the prior art as well as in the present invention) is additionally an automatic locking of the door after each closing of the door by a spring preload on the locking bolt. That is, after actuation of the inner door latch, the latch 14 is pulled inwards and remains even when you release the door inner handle in the position inside (unlocked); the spring on the latch is preloaded. As soon as the door closes, the door frame comes into contact with the control catch 15, so that the Latch 14 is moved by means of the bias to the outside in the locked position, so that the door is closed with both the latch 13 and the latch 14.

In the Figures 2 and 3 an opening or receptacle 11 is shown, into which a lock cylinder can be inserted. In the illustrated embodiment, it is the shape of a profile cylinder (PZ, see also FIG Fig. 6 ). However, the device according to the invention is not limited to such locks or lock cases with profile cylinders and can also be used for Swiss round cylinder or other known cylindrical shapes. According to the invention, the device for detecting the locking position is inserted into the corresponding opening 11 instead of a lock cylinder. In the illustrated embodiment of the Figures 2 and 3 the device covers the upper round section (see also "A" in Fig. 6 ) of the opening 11 over an angular range of about 300 °. Preferably, the device according to the invention extends at least partially over the round (upper) portion of the opening 11, so that in the underlying portion (see "B" in Fig. 6 ) may be a Verspannelement 203 or a wedge element 9.

The device according to the invention is used in particular when a lock cylinder is not inserted into the lock cylinder opening 11 provided for this purpose. FIG. 1 shows, for example, a fitting solution in which both the electronics and the mechanics for an access control in the outer or inner fitting is arranged. The door-side fitting 201 includes a pusher 210 (inner door latch) which is fixedly coupled to the pusher pin 204 which is insertable into the nut 12 of the mortise lock. In addition, the fitting 200 also has a corresponding outer fitting 202 with an outer handle 220. The outer handle 220 is coupled via the modified pusher pin 214 with the pusher 204 of the inner fitting 201. In particular, the inner end pin 204 is always coupled to the nut 12 of the mortise lock, so that the anti-panic lock can always be opened when the inner handle is actuated. In the case of unauthorized authentication, the outer detent pin 214 rotates upon pressing the outer door handle 220 without the inner handle 204 rotating, ie the outer door handle can not actuate the nut of the mortise lock, there is no opening of the door from the outside. Only upon successful authentication, the two pushers 204 and 214 are coupled such that a rotation of the outer pusher 220 is transmitted to the inner back pin 204, so that the door lock, ie the latch and the latch are opened. at the illustrated fitting solution 220 is a special form of fitting solution, which is preferably fastened without direct screwing to the door leaf. The attachment of the outer and inner fittings is done here by a Verspanelement 203, which pulls the outer and inner fittings against each other, or braced, said Verspanelement 203 preferably lies in the opening 11 of the mortise, which is provided for the lock cylinder. Thus, at least part of the opening 11 of the mortise lock is filled by the Verspanelement 203. The Verspanelement 203 of the embodiment in FIG. 1 has a substantially rectangular cross-section, whereas the opening 11 in the mortise lock shown is a PZ opening, ie when a rectangular cross-section is introduced, at least part of the upper cylindrical round portion of the opening 11 remains free, even if the Verspanelement is disposed in the opening 11 , This space advantage of the device according to the invention. In particular, a contact or engagement with the bolt and / or the mechanism for actuating the bolt is possible precisely at this location of the mortise lock, since a correspondingly arranged lock cylinder would actuate the bolt with the help of Schließbarts the lock cylinder just at this location. This particular location uses the inventive device for detecting the locking position. In other words, the position of the bolt is determined from the inside within the mortise and not from the outside, so that the device according to the invention is easy, safe and compact to install, ie the existing infrastructure can be exploited particularly advantageous.

However, it should be emphasized that the in FIG. 1 illustrated fitting solution with the Verspannelement 203 is only one preferred embodiment, the inventive device for arrangement in the opening 11 of the lock cylinder can be used for other hardware solutions. In particular, there are also fitting solutions that dispense with a bracing element 203 in that the fittings are fastened by means of screws directly to the door leaf. In this case, even the entire opening 11 in the mortise lock would then be free, so that even larger devices for detecting the locking position could be inserted into this opening 11 of the mortise lock. According to the invention, however, it is preferable to provide a universally designed device that is suitable both for the embodiments with Verspannelement 203, as well as for hardware solutions that are bolted without Verspanelement on the door leaf. In that case, it is preferable Instead of the Verspannelements 203 a wedge 9 in the opening 11 of the mortise insert to ensure a secure fit of the device according to the invention in the opening 11 and preferably to prevent twisting of the device within the opening 11.

An essential preferred advantage of the present invention is to be seen in the fact that the device is externally modeled on the conventional middle part of a lock cylinder with cam and therefore how this can be used in a designated profile cylinder opening, without causing modifications of a lock (ie the existing " Infrastructure ") are required.

The FIGS. 4 and 5 show the operation of the device according to the invention with reference to two different positions of the bolt or the locking mechanism 101. The device according to the invention comprises at least two parts 1 and 2 which are rotatable relative to each other. The first part is the inner part 1 and the second part the outer part 2. In general, the device can be described as a ring segment. Due to the expansion along the lock box width, the device could also be described as a cylinder segment, with a section corresponding to a (round) cylinder wall over an angular range of approximately 200-300 °. In other words, the device could also be referred to as "U-shaped" with a recess into which the tensioning element 203 or the wedge 9 can be inserted in order to prevent the device from rotating within the opening 11.

The inner part 2 and the outer part 1 are movable relative to each other, wherein preferably the inner part 2 by the wedge 9 and the Verspannelement 203 is secured against rotation in the lock, so that in the mounted position, only the outer part 1 relative to the lock case lets move. On the outer part of the probe element 3 is mounted, which is modeled on a cam of a lock cylinder. In particular, the dimensions of this probe element are modeled on a cam, so that a contact or engagement in the locking mechanism is possible with the probe element 3 according to the invention, as if a lock cylinder would be inserted into the opening 11. According to one embodiment, the probe element 3 may be formed integrally with the outer part 1 or fixedly secured to the outer part 1. According to a further preferred embodiment, the outer part 1 may have a fastening structure that is complementary to a fastening structure 3 'in the probe element 3. For example, that can Outer part 1 have a kind of dovetail or link structure in the corresponding "negative" shapes 3 ', which are formed in the probe element 3, can be inserted. An attachment of the probe element 3 to the outer part 1 is preferably carried out via a positive connection. This embodiment has the additional advantage that the probe element 3 can be mounted at different positions on the outer part 1. Thus, the angular position of the probe element 3 can be adjusted in the rest position within certain limits.

In order to ensure contact with the locking mechanism 101 of the lock 10, it is advantageous if the feeler element 3 is pressed against the locking mechanism with a low force F (sensing force). This force is generated by a spring. which is located in the intermediate space 5, which is formed between the inner part 2 and the outer part 1. It has been shown that it is particularly advantageous to use a magazine spring similar to that used in weapon magazines in the gap 5.

Fig. 4 shows a basic position. This basic position is detected by a sensor 6 present in the device. The detection of a rotation of two mutually rotatable parts can be done by means of a variety of different sensors. Particularly preferred is the detection by means of a Hall sensor. Preferably, the Hall sensor 6 is attached to the inner part 2 of the device. For example, a Hall sensor on a thin board (eg film board) may be present, on the board already electronics for operating or evaluating the Hall sensor 6 is present. Due to the electronics, it is preferable to mount the Hall sensor on the stationary part of the device, ie, on the inner part 2. Due to the small size of the sensor, it is also possible to attach the sensor to the movable outer part 1.

At the other movable part then a small magnet is attached, which can be detected with the Hall sensor 6 in a certain position. In the FIGS. 4 and 5 the small magnet 4 is attached to the outer part 1. In particular, the change in the position of the magnet 4 in response to the change in position of the probe element 3 from the Figures 3 and 4 to recognize. The Hall sensor 6 is in the illustrated embodiment in Fig. 4 just below the magnet 4. The Hall sensor 6 detects the magnet 4 in this position; Accordingly, the latch position can be detected according to the position of the component 101 that is part of the latch or part of the latch mechanism.

In the Fig. 5 the component 101 has moved downwards. Accordingly, the probe element 3 was rotated clockwise downward. The probe element 3 is still in contact with the component 101 because the spring (not shown) has been compressed in the gap 5 and generates a force of the outer part to the left. Accordingly, a force F is exerted against the component 101 by the feeler element 3. In addition, the magnet 4 has also rotated to the right and is in a position that can no longer be detected with the sensor 6.

The invention also includes the exact or exact terms, features, numerical values or ranges, etc. when, above or below, these terms, features, numerical values or ranges are used in conjunction with terms such as, for example. "about, about, essentially, in general, at least, at least", etc., were called (ie, "about 3" should also "3" or "substantially radially" should also include "radial"). The expression "or" means moreover "and / or".

Claims (16)

Device for detecting a latch position of a mortise lock (10), which is configured to be mounted in an opening (11) of the mortise lock (10) provided for a lock cylinder, comprising: a feeler element (3) which comes into contact with the actuating mechanism of the bolt or the bolt (12) of the mortise lock (10), wherein the feeler element (3) is rotatably mounted, and wherein a rotation of the probe element (3) with a sensor (2) is detected. Device according to claim 1, wherein the feeler element (3) is pressed by a force against the actuating mechanism of the bolt, but this force is preferably smaller than the force with which the latch of the mortise lock (10) is locked outwards is pressed. Apparatus according to claim 1 or 2, wherein the feeler element (3) is substantially modeled on a cam lock of a lock cylinder. Device according to one of the preceding claims, wherein the mortise lock (10) is a self-locking anti-panic mortise lock (10). Device according to one of the preceding claims, wherein the device comprises two mutually movable parts (1, 2), which are preferably made of plastic. Apparatus according to claim 5, wherein the two mutually movable parts (1, 2) are urged by an intermediate spring (5) in an initial position, which preferably corresponds to the unlocked latch position. Apparatus according to claim 6, wherein the spring is a magazine spring (5), which preferably has a rectangular base. Device according to one of the preceding claims, wherein the device is adapted, in addition to a clamping element, the two door fitting halves (201, 202) braced against a door leaf and in the lock cylinder provided for the opening (11) of the mortise (10), in this opening (11) to be attached. Device according to one of the preceding claims, wherein the device fills the opening (11) only partially, preferably less than 50%, and an additional wedge element (9) in addition to the device in the opening (11) can be introduced to the device upon actuation of the Lock bolt (12) of the lock to secure against rotation relative to the mortise lock. Device according to one of the preceding claims, wherein the feeler element (3) is rotated in response to a change in the locking position of the mortise lock. Device according to one of the preceding claims, when dependent on claim 4, wherein the first part (1) of the two parts (1, 2) is an outer ring element (1) and is connected to the feeler element (3), and the outer ring element ( 1) outside the second part (2), which is a core element (2), is rotatably mounted. Device according to one of the preceding claims 11, wherein the spring (5) lies between the outer ring element (1) and the core element (2) and generates a relative rotational force with respect to these two elements. Device according to one of the preceding claims, wherein i) the feeler element (3) is formed integrally with the outer ring element (1), or ii) the feeler element (3) on the outer ring element (1) is detachably fastened, preferably by means of interlocking profile elements on the ring element (1) and probe element (3), whereby the probe element (3) in different angular positions on the ring element (1) can be positioned to accommodate an adaptation to different types of locks, which require different angular positions. Device according to one of the preceding claims, wherein the sensor (2) is a Hall sensor which is mounted in the first or second part and the other of the first and second part comprises a magnet (4) detectable with the Hall sensor. Method for detecting a locking position of a mortise lock (10) with the steps: Providing a device according to one of the preceding claims, - Inserting the device in the opening (11) of the mortise lock (10) provided for receiving a lock cylinder. The method of claim 15, including the additional step of inserting a wedge member to prevent twisting of the apparatus within the opening (11).

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