DE10246643B4 - Electromechanical lock with protection against incorrect operation - Google Patents

Abstract

Electromechanical lock with malfunction prevention, in which the displacement of a locking bolt (6) into a locking recess (10) in a door (12) with manual operation of an operating button (13) arranged on the front of the door (12), after their operation the locking bolt (6) is blocked by an electromechanically driven locking element (2), characterized in that between the locking bolt (6) and the actuating button (13) a spring-loaded deflecting element (20) is arranged, one part (31) of the locking latch (6) actuated and the other part (32) the actuating button (13) moves and that in the Verschwenkweg of the deflecting element (20) actuated by an electric drive locking element (2) is engageable.

Description

The invention relates to a lock with protection against incorrect operation according to the preamble of claim 1. In particular, the invention relates to a lock with electrically operated locking, wherein the actual displacement drive for the locking bolt is done by finger pressure.

Such locks are preferably used for cabinet systems in fitness centers, bathrooms and staff rooms. They are preferred to open and close with a coded data carrier card. In general, the lock is closed by an actuating button that passes through the door leaf is moved by finger pressure against a corresponding actuating spring, is moved with the inwardly directed pressing the actuating button of the locking bar in its closed position in the associated recess in the body.

Another type of actuation is that one turns on the actuating button in order to engage against the force of an actuating spring, the locking bolt in the associated recess in the body.

With the manual operation of the locking bar by pressing the finger on the actuating button the user is fooled that the lock is actually already in the locked position. However, since it is an electronic lock, the electronic lock for the locking latch must also be effective to finally lock the lock.

A known lock system provides no measure against such a malfunction (missing, final lock) before. For example, presses a sports bag from the interior of the cabinet against the door, then the locking bar is clamped in its locking recess in the body and the user receives the mechanical closure by means of the operation key the wrong impression that the lock is actually (finally) closed. There are also no warnings or display elements that give the user knowledge that the electrical locking system is not yet in function.

In another known lock system, the locking bolt is brought by rotation of the actuating button in its locked position. The user can now erroneously assume that the electrical locking system is already in engagement, because the lock is actually no longer open by pulling the operating button in the opening direction. However, the locking bolt can easily be brought back into its open position by turning the actuating button, which the user but usually not even tried. For this reason, there is an incorrect operation because the user erroneously assumes that the lock is finally locked.

The final locking in the known, second lock system would namely only be done by activating the electronic control with a corresponding data card on the actuating button, which then holds the locking bar with a corresponding lifting magnet in its blocking position.

If the user fails to actuate the actuation key with his data card, then the lock is supposed to be locked, but is not protected against reopening.

In the US 5 010 751 A An electromechanical lock for a safe is described which can be unlocked via a code card and an electronic control and then manually opened and closed again via a rotary knob. However, no operation button is listed that operates a locking latch.

In the FR 759 840 A a vehicle door is manually locked and unlocked by means of a push button. In this case, the movement of the push button is transmitted in one embodiment via a deflecting element to a locking element. An electromechanical lock is not apparent.

In the DE 377 446 A Locks an electromagnetic door lock when closing the door itself and can then be unlocked by a key again. In this case, a magnet attracts a pawl, whereby a spring-loaded latch is free, which is not a deflection element.

The invention is therefore the object of developing a lock of the type mentioned so that it is more reliably secured against the incorrect operation mentioned above.

To achieve the object, the invention is characterized in that
With the given technical teaching, there is the significant advantage that now on an immediate actuation of the displacement of the pawl by the operation button - as in the prior art, the case is omitted. Instead, a deflecting element according to the invention is arranged in the displacement path between the locking bolt and the actuating button, the pivoting of which can be blocked by the actuated by an electric drive locking element.

In a preferred embodiment, the pivoting of the deflecting element is spring-loaded, so that it is always pivoted into the open position and also displaces the actuating button coupled thereto in its open position.

Now, if the lock are closed according to the invention, then a finger pressure is exerted on the actuating button, which leads to a sliding movement of the actuating button, which in turn pivots the deflecting element in its closed position.

The other, pivotable part of the deflecting element is in contact with the locking bolt, so that it is engaged in its closed position in the associated locking recess in the body.

During manual operation of the actuating button, the electrical displacement drive for the locking element is still out of engagement with the deflecting element.

If it now comes to the aforementioned malfunction, in which, for example, a heavy object clamps the bolt in the carcass recess, because the door is pressed with an appropriate weight in the open position, it is still not a faulty operation.

Thanks to the fact that the deflector rests with its free pivotable part on the locking bolt, but is pivoted with a spring in the open position, the deflector comes out of engagement with the clamped locking bolt and moves the actuator button under the load of this spring back into its open position , This is visually visible to the user that he has indeed pressed the operation button, but that comes out again under spring load and thus makes visually visible that the closing process was unsuccessful.

Even if the user now tried with pushed out the operating button on his data card to actuate the electrically operated locking element, this leads to no closure, because the locking element abuts the outer periphery of the pivoted deflecting and thus a final electronic obstruction is not given.

The actuator button will protrude far beyond the front of the door in such a faulty operation in its open position and thus forms a corresponding signal to the user that the door has not been properly closed.

In a proper closing operation, the actuating button is again pressed in the manner previously described in the recess in the door and the deflector actuates the locking bar in the closing direction, so that it engages in the locking recess in the body.

In this pivoting position of the deflecting element, which happens against the spring load of the spring, the electronic control can now be informed by a corresponding data card, which is applied from the outside to the actuating button, that the lock is now in the mechanical blocking position and by the operation the electrical displacement drive for the locking element is now the final closure or securing this mechanical closure.

A maloperation in the aforementioned type is thus excluded with certainty.

The deflecting element is designed substantially as a two-armed lever, wherein on one pivotable part the actuating button and is arranged in the other pivotable part of the locking bolt, which can thus be moved into its blocking position.

Instead of a pivotally mounted, spring-loaded deflecting element can therefore also a simple two-armed lever are used, which is also pivoted spring-loaded in the one lever position. Instead of pivoting, a deflecting element can also be selected, which is displaced between the two end positions.

If - in another embodiment - instead of a press of the actuating button a rotary actuator are selected, then the previously mentioned measures apply in an analogous manner. It is according to the invention only essential that a spring-loaded transmission element is arranged between the actuating button and the locking bar, which receives the rotation or displacement movement of the actuating button and passes on to the locking bar. In the displacement or Verdrehweg this deflecting the then actuated by the electric displacement drive locking element must be able to intervene.

The invention is therefore not limited to a pivotally mounted deflecting element, but it also refers to displaceable or rotatably mounted deflecting elements, which accomplish a corresponding pivoting movement by a rotation of the actuating button - instead of a displacement.

Important in the invention is that, in principle, the displacement of the actuating button is locked when the lock is in the secure locking position. That is, even if the electrically operated locking element is in closing engagement with the deflecting element. In this way, it is always ensured that the visible from the outside closed position is only effectively achieved when the actuating button is in the pressed state in the recess in the door, otherwise it is pushed out by the spring load on the deflector.

The subject of the present invention results not only from the subject matter of the individual claims, but also from the combination of the individual claims with each other.

All information and features disclosed in the documents, including the abstract, in particular the spatial design shown in the drawings, are claimed to be essential to the invention insofar as they are novel individually or in combination with respect to the prior art.

In the following the invention will be explained in more detail with reference to drawings showing only one embodiment. Here are from the drawings and their description further features essential to the invention and advantages of the invention.

Show it:

1 Fig. 1 schematically shows a section through a lock according to the invention;

2 : perspective view of the operation button;

3 : Front view of the operation button after 2 ;

4 : perspective view of the locking bolt;

5 : Side view of the deflection element;

6 : perspective side view of the deflection after 5 ,

In 1 is at a door 12 a carrier housing 1 fastened, in the interior of which the lock system according to the invention is arranged.

Through a recess in the door 12 accesses an operation key 13 thus, of their position 13 in the position 13 ' in the direction of the arrow 14 and is designed to be displaceable in the opposite direction.

The in 4 illustrated locking bolt is in a recess 5 in the case 6 in the direction of the arrows 3 . 4 slidably mounted.

On a surface 7 of the locking bolt 6 is one part 31 a rotatably mounted deflecting element 20 at whose other rotatable part 32 with associated approaches 16 . 17 the operation button 13 connected is.

In the 1 Although shown position is the locking bolt 6 with his bar 9 in an associated recess 10 in the body 11 indented, but it is still no definite, secured closed position reached because the - driven by a non-illustrated electrical, mechanical or electromagnetic drive - locking element 2 not yet in locking engagement with the pivotable deflecting element 20 is.

The deflecting element 20 according to the 5 and 6 has two opposite pivot bearing 24 on which it pivots in carrier housing 1 is stored. This is supported by a spring 26 (designed here as a leg spring) with its one part on the carrier housing 1 while the other part of the spring 26 to a pin 25 the deflecting element 20 supported, which thus in a clockwise direction (in the arrow direction 27 ) is pivotable.

The storage of the actuating button 13 on the swiveling part 32 the deflecting element 20 takes place in that in opposite approaches 16 . 17 on the operation button 13 aligned holes 18 are arranged, and between the approaches 16 . 17 a gap 19 is trained. In this space 19 grips the deflector 20 a, wherein the opposing and mutually aligned on the deflecting element 20 arranged cones 23 rotatable in the holes 18 intervention.

The deflecting element 20 is approximately segment-shaped and is made of a pivot plate 22 formed, at one end of a hook 28 is arranged.

The locking bolt 6 moreover, it has an approach 8th on, a spring, not shown, which engages the locking bolt with his bolt 9 in the open position from the recess 10 in the body 11 withdraws.

Does it come to the in 1 shown incorrect operation, namely that the operation key 13 in the opposite direction to the arrow 14 has been pressed, then the deflecting element 20 around his fulcrum 24 in the opposite direction to the arrow 27 pivoted and the part 31 moves the locking bolt 6 outward, leaving the latch 9 in Closing engagement with the recess 10 in the door 11 arrives. The door is supposedly locked (but not electromechanically!).

Thanks to the spring-loaded deflection element 20 but presses the spring 26 the deflecting element 20 around his fulcrum 24 in the direction of the arrow 27 back, leaving the operation button 13 in the direction of the arrow 14 from the recess 15 in the door and in the carrier housing 1 is pushed out and the position 13 ' occupies. The user now knows that when the operation button protrudes out 13 ' there is a faulty operation or the door is in the open position or unsecured closed position.

In this situation, therefore, not the electrically operated locking element 2 in closing engagement with the deflecting element 20 come, because the hook 29 at the front free end of the locking element 2 on the outer circumference of the part 31 the deflecting strikes. The operation button 13 therefore remains in the position 13 ' ,

Only when the user makes a new attempt and with the hand the operation button 13 press and at the same time the card near the front of the control button 13 leads, the corresponding control is activated.

For this purpose, it is otherwise provided that to protect the power supply at the approach 17 the operation button 13 an actuating flag 30 attaches, which actuates a switch not shown on the control board of the circuit. With this switch, the entire control is "awakened" and thus only the power supply to the control released.

Only when this power supply is switched can one close to the front of the control button 13 brought data card cause the electric drive of the locking element 2 to start and this in the direction of the arrow 3 in locking engagement with the deflecting element 20 bring to. This is where the catch comes from 29 of the locking element 2 the assigned hook 28 on the deflecting element 20 so that these two parts are securely engaged. This is the deflection 20 in its closed position against the force of the spring 26 held and the locking bolt 6 is also held in its closed position. It thus comes to a stable mechanical Verrieglung without the displacement drive of the locking element 2 still plays a role.

The operation button 13 makes otherwise according to 1 a slight pivoting movement because of the lugs 16 . 17 on the swiveling part 32 the deflecting element 20 attack. So it causes a slight tilting movement. To guide the operation button 13 in the recess 15 is therefore a guide surface 21 on one side of the button 13 arranged to secure against rotation and to ensure a longitudinal guide.

To open the lock is either with finger pressure or with the data card itself on the front of the control button 13 pressed, which by a small displacement even further over their in 1 shown position in the recess 15 can be pressed so that the actuating flag 30 operated the aforementioned switch on the control board.

It is thus "awakened" the control and with the already on the front of the control button 13 adjacent data card is thus the displacement drive for the locking element 2 acts and shifts this in the direction of the arrow 4 to the rear, leaving the two hooks 28 . 29 disengage and the deflecting element 20 again under the weight of the spring 26 pivoted in its open position. This will be the locking bolt 6 Released and using the force of the return spring attached to the approach 8th is applied the locking bolt 6 moved to its open position.

It is not necessary, moreover, to bring about closure with a finger on the control button 13 press and at the same time the data card near the control button 13 brings. It is equally possible that the actuation of the operation button 13 immediately with the data card itself, which is placed on the front and then with the operation key 13 in the opposite direction to the arrow 14 is pressed inwards.

LIST OF REFERENCE NUMBERS

1

support housing

2

locking element

3

arrow

4

arrow

5

recess

6

safety catch

7

area

8th

approach

9

bars

10

recess

11

corpus

12

door

13

actuating button 13 '

14

arrow

15

recess

16

approach

17

approach

18

drilling

19

gap

20

deflecting

21

guide surface

22

swivel plate

23

spigot

24

pivot bearing

25

spigot

26

feather

27

arrow

28

hook

29

hook

30

operation flag

31

part

32

part

Claims (7)

Electromechanical lock with protection against incorrect operation, in which the displacement of a locking bolt ( 6 ) in a closing recess ( 10 ) in a door ( 12 ) with manual operation on the front of the door ( 12 ) arranged actuating button ( 13 ), after the actuation of the locking bolt ( 6 ) by an electromechanically driven locking element ( 2 ) is blocked, characterized in that between the locking bolt ( 6 ) and the operation key ( 13 ) a spring-loaded movable deflecting element ( 20 ), one part of which ( 31 ) the locking bolt ( 6 ) and the other part ( 32 ) the operation key ( 13 ) and that in the Verschwenkweg of the deflecting element ( 20 ) actuated by an electric drive locking element ( 2 ) is engageable. Electromechanical lock according to claim 1, characterized in that the deflecting element ( 20 ) pivotable in the carrier housing ( 1 ) is stored. Electromechanical lock according to claim 1, characterized in that the deflecting element ( 20 ) displaceable in the carrier housing ( 1 ) is stored. Electromechanical lock according to claim 2 or 3, characterized in that the deflection element ( 20 ) is designed as a two-armed lever, whose one lever arm (part 32 ) spring-loaded the actuating button ( 13 ) shifts to its open position. Electromechanical lock according to one of claims 1 to 4, characterized in that the actuating button ( 13 ) displaceable in a recess ( 15 ) is stored in the door. Electromechanical lock according to one of claims 1 to 4, characterized in that the actuating button ( 13 ) rotatable in a recess ( 15 ) is stored in the door. Electromechanical lock according to one of claims 1 to 6, characterized in that in the pivoting or displacement path of the deflecting element ( 20 ) the locking element ( 2 ) is engageable when the deflecting element ( 20 ) the locking bolt ( 6 ) holds in the closed position.

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