EP1617018B1 - Electromechanical door lock - Google Patents

Abstract

The electromechanical door lock (1) has a rectangular housing (2) containing a sliding locking bolt (3). An electrical actuator, especially an electric motor (4) is mounted adjacent to the bolt. A spring-loaded catch (5) is located on the other side of the actuator mechanism. The catch may help to center the bolt in the corresponding opening in the door frame plate (6). The catch has a movable central part (5b) and a wedge-shaped outer part (5a) engaging in a small opening in the door frame plate. A linkage (7-9) connects the actuator to the bolt and there is a holder (10) blocking motion of the catch.

Description

The invention relates to an electromechanical door lock according to the preamble of claim 1.

Such a door lock is from the DE 39 38 655 C2 known.

Although one of the objectives of the subject matter of this patent is to provide a door lock with a simple structure, the overall design of this construction is relatively complicated and complicated as there is a single movable in the longitudinal direction of the lock housing slide provided two separate locking devices for a bolt and a trap operated. This results in a relatively complicated geometric shape design of this slider and a complex transmission mechanism for transmitting forces of the electromechanical drive device to this component.

It is therefore an object of the present invention to provide a door lock specified in the preamble of claim 1 way, which allows a simplification of the structure of its components and thus a reduction in manufacturing costs.

The solution of this object is achieved by the features of claim 1.

Due to the inventive design of the door lock, it is possible to dispense entirely with translationally movable actuators or operating lever, which would have to operate separate locking devices for the case and the bolt. Rather, the invention is in Advantageously, the already provided bolt exploited to lift the blocking of the case, so that the structure of the individual components of the door lock according to the invention over the generic lock can be simplified.

The dependent claims have advantageous developments of the invention to the content.

Further details, features and advantages of the invention will become apparent from the following description of exemplary embodiments with reference to the drawings.

Figur 1:

Eine schematisch leicht vereinfachte Darstellung einer ersten Ausführungsform eines erfindungsgemäßen Türschlosses in Seitenansicht bei gesperrtem Riegel und gesperrter Falle;

Figur 2:

eine der Figur 1 entsprechende Darstellung bei entsperrtem Riegel und entsperrter Falle;

Figur 3:

eine Ansicht eines Mitnehmers;

Figur 4:

eine Ansicht eines zweiten Mitnehmers;

Figur 5:

eine Ansicht des Riegels des Türschlosses und

Figuren 6 - 8:

eine alternative Ausführungsform für eine Betätigungsvorrichtung einer ersten Zuhalteeinrichtung des Schlosses gemäß den Figuren 1 und 2.

Show it:

FIG. 1:

A schematically slightly simplified representation of a first embodiment of a door lock according to the invention in side view with locked bolt and locked trap;

FIG. 2:

one of the FIG. 1 corresponding representation with unlocked latch and unlocked trap;

FIG. 3:

a view of a driver;

FIG. 4:

a view of a second driver;

FIG. 5:

a view of the bolt of the door lock and

Figures 6 - 8:

an alternative embodiment for an actuator of a first locking device of the castle according to the FIGS. 1 and 2 ,

In the FIGS. 1 and 2 an inventive electromechanical door lock 1 is shown. The door lock 1 has a door lock housing 2. In the door lock housing 2, a locking latch 3 is mounted, which is lockable in the door lock housing 2 in a projecting position (in FIG. 1 shown) and by means of an electrical actuator 4, preferably in the form of an electric motor, in the door lock housing 2 is retractable. The actuator 4 is in the FIGS. 1 and 2 shown only schematically hatched.

The door lock 1 also has a spring-loaded latch 5, which serves to center the latch 3 in its latch position in an opening of a baffle plate 6. This can be z. B. by a so-called cross latch according to DE 38 12 313 C2 be executed. The case 5 has a movable central part 5b arranged inside the door lock housing 2 and a wedge-shaped part 5a. The wedge-shaped part 5a extends at least partially out of the door lock housing 2 in the projecting position of the case 5 out. The wedge-shaped part 5a is pivotally connected to the central part 5b for enabling pivotal movement of the wedge-shaped part 5a relative to the central part 5b, so that the latch 5 can be pushed into the interior of the door lock housing 2, as from one side or the other of the door lock housing 2 in the direction of Opening or closing a door provided with the door lock a force acts on the wedge-shaped part 5a.

The door lock 1 further comprises first transmission members 7, 8 and 9 for transmitting the power of the electric actuator 4 to the Latch 3 on. The transmission members 8 and 9 are in this case designed as levers which are mounted pivotably about a common pivot point 30 in the lock housing 2. The transmission member 7 is formed as a translationally movable plunger which is driven by the actuating device 4.

The door lock 1 also has a first locking device 10 for locking the latch 5 in its projecting position. This blocking takes place when the bolt 3 is also in its locked position. In the illustrated embodiment, the locking device 10 has a spring-loaded and pivotally mounted in the lock housing 2 release lever 12, which can also interact with a likewise spring-loaded and rotatably mounted in the door lock housing locking member 13. The locking member 13 has to lock the case 5, a blocking surface 29 which can enter into operative connection with a correspondingly arranged counter surface on the case 5.

The door lock 1 also has a second locking device 11 for the latch 3 in its locking position.

As from the synopsis of FIGS. 1 and 2 It can be seen, it is possible with the door lock 1 according to the invention to use the latch when unlocking and its withdrawal into the door lock housing 2, to interact with second transmission elements of an actuator to cancel the blocking of the case 5, wherein in the illustrated embodiment the second transmission members are formed by the release lever 12 and the locking member 13 of the first locking means 10, so that advantageously results in a significant simplification of the overall construction, since both the latch 3 and the second transmission elements and the first locking device each have a double function.

The above-mentioned components, which in detail in addition to the above explanations from the drawings of the FIGS. 1 and 2 , which is hereby expressly incorporated by reference for the purpose of disclosure, provide basic components of the door lock 1.

Other components and the operation of the door lock according to the invention are explained below with reference to three different force introduction options in the door lock 1 according to the invention:

Force transmission into the door lock via a pusher or a nut

When opening the door, the force is introduced via a (not shown) door handle or the nut 15 in the door lock 1. The nut 15 is held in its basic position by a pusher retaining spring 18, wherein the nut 15 is simultaneously fixed in the home position by a nut stop 25. The nut 15 performs a clockwise rotation. By a driver 20 on the nut 15 and a transmission member or Nussmittenteil 14 also carries out this rotation and thus actuates the transmission member 8, since it is connected to this by another driver 21, preferably form-fitting. For this purpose, the driver 21 preferably in partial areas on a round contour.

By thus initiated movement of the transmission member 8, the second locking device 11, which is preferably designed to be spring-loaded, raised.

The second locking device 11 is located above one on the bolt 3 on the bolt tail and in FIG. 5 visible blocking surface 24 for the transmission member 8 and performs no further rotational movement, so holds the second locking device 11 in the above position. This is achieved by the specially adapted to the rotation of the Nussmittenteiles 14 and its circular contour having driver 21 curve shape 22 of the transmission member 8, in detail from FIG. 3 is apparent. For arrangement and training of this waveform 22 is hereby explicitly for disclosure reasons FIG. 3 Referenced. Because the driver 21 is not in direct contact with the in FIG. 4 is shown in detail transfer member 9, this also performs a rotating movement as soon as the second locking device 11 is located above its blocking surface 24. By the rotational movement of the transmission member 9 of the bolt 3 is retracted. The shape of a curve 23 of the transmission member 9, with respect to their arrangement and training for reasons of disclosure hereby explicitly FIG. 4 Is tuned, is tuned so that the latch 3 is fully retracted, when the nut 15 moves against a nut stop. The nut stopper 25 is how FIG. 1 clarified, fixed to the housing and is according to the selected representation of FIG. 1 below the nut 15 in addition to the pusher retaining spring 18. The transfer members 8 and 9, as already stated above, preferably the common pivot point 30 in the lock housing 2.

Just before the spring-loaded latch 3 is in the fully retracted position, that is certainly no longer come into contact with the baffle plate 6, this actuates the spring-loaded transmission member 12. The transmission member or the release lever 12 performs a directed counterclockwise rotational movement (see the synopsis of FIGS. 1 and 2 ) and thus actuates the first locking device 10. In this case, the transmission member 13 pivots the locking device 10 (see FIG. 2 ) Clockwise and releases the blocking of the spring-loaded latch 5, as in the in the FIGS. 1 and 2 illustrated, particularly preferred embodiment, the transmission member 13 is a part of the locking device 10 and the previously explained locking surface 29 for blocking the case 5, which is solved by the pivoting clockwise from the case 5.

The door can now be committed, with the spring-loaded latch 5 moved out of the door lock housing 2 into the door lock housing 2 and a spring-loaded additional latch 16.

As soon as the bolt 3 is in its retracted position, a spring-loaded hold-open device 17, preferably in the form of a rotatably and spring-loaded hold-open lever, which is mounted in the housing 2, engages in a recess 26 of the bolt 3 and holds it in the retracted position. The arrangement and operation of the open-keeping device 17 in cooperation with the recess 26 is also from a synopsis of FIGS. 1 and 2 seen.

The additional case 16 is designed in the illustrated embodiment as a longitudinally movable part, which is guided longitudinally movably via a slot-pin arrangement in the lock housing 2. This arrangement and the spring load of the additional case 16 also result from a synopsis of FIGS. 1 and 2 to which reference is explicitly made with respect to this part.

When closing the door, the case 5 hits the baffle plate 6 and is temporarily pressed into the door lock housing 2. Likewise, the additional trap 16 on the baffle plate 6 and is pressed into the door lock housing 2.

While the additional latch 16 is pressed into the door lock housing 2, this triggers the hold-open device (snap lever) 17 and the latch 3 is released (see a synopsis of the Figures 2 and 1 ).

By a latch spring 27 which biases the latch 3 in its closed position and which is mounted in the door lock housing 2, the latch 3 is moved to its fully excluded position, and the first locking device 10 locks the latch 5. Subsequently, the second locking device 11 locks the latch , The door is thus closed and locked twice.

Force transmission into the door lock via a key or cam

When opening the door, the force is introduced via a key or cam 19 into the door lock 1. The cam 19 performs a clockwise rotation. By thus initiated movement of the cam 19, the second locking device 11, which is spring-loaded, raised.

If the second locking device 11 is located above its blocking surface 24, the bolt 3 is pulled in by the rotational movement of the locking bit 19 about the first tour. Upon further rotation of the cam 19 (second tour), the latch 3 is brought to its fully retracted position.

Just before the spring-loaded latch 3 is in the fully zurückgeschlossenen position, ie certainly can no longer come into contact with the baffle plate 6, this actuates the spring-loaded transmission member 12. The transmission member 12 in this case again performs a directed counterclockwise rotational movement and actuates the first locking device 10, as has already been described above and from a synopsis of the FIGS. 1 and 2 results.

By the operation of the first locking device 10 by means of the transmission member 12, the first locking device 10 or its transmission member 13 performs a clockwise rotation and releases the blocking of the spring-loaded latch 5.

The door can now be committed, with the spring-loaded latch 5 moving into the door lock housing 2 and the spring-loaded additional latch 16 can move out of the door lock housing 2.

As soon as the latch 3 is in its retracted position, the spring-loaded hold-open device 17 in turn engages in the recess 26 of the bolt 3 and holds it in the retracted position.

Force transmission into the door lock via the electromechanical actuator

When opening the door, the force on the electromechanical actuator 4, in the FIGS. 1 and 2 hatched only schematically or introduced via the actuator 7 in the door lock 1 and on the Nussemitenteil 14.

The nut central part 14 performs a clockwise rotation and thus actuates the transmission member 8, since it is connected to this by the further driver 21, preferably form-fitting manner.

By thus initiated movement of the transmission member 8, the second locking device 11 is raised.

The second locking device 11 is located above its blocking surface 24, the transmission member 8 performs no further rotational movement and holds the second locking device 11 in the above position. This is achieved by the specially adapted to the rotation of the Nussmittenteiles 14 and its circular contour having driver 21 curve 22 of the transmission member. 8

The fact that the driver 21 is not in direct contact with the transmission member 9, this also leads a delayed rotational movement, as soon as the second locking device 11 is located above its blocking surface 24.

By the rotational movement of the transmission member 9 of the bolt 3 is retracted. The shape of the curve 23 of the transmission member 9 is tuned so that the bolt 3 is fully retracted when the nut 15 moves against the nut stop 25. The transmission members 8, 9 may, as shown, have a common pivot point 30. Shortly before the spring-loaded latch 3 is in the fully zurückgeschlossenen position, this actuates the spring-loaded transmission member 12. The transmission member 12 performs a directed counterclockwise rotation and thus actuates the first locking device 10. By touching the first locking device 10 with the transmission member 12, the first locking device 10 rotates clockwise from and are in the illustrated embodiment by the transmission member 13, the blocking of the spring-loaded latch 5 free.

The door can now be committed, with the spring-loaded latch 5 in the door lock housing 2 inside and the spring-loaded additional case 16 can move out of the door lock housing 2.

As soon as the latch 3 is in its retracted position, the spring-loaded hold-open device 17 in turn engages in the recess 26 of the bolt 3 and holds it in the retracted position.

In the FIGS. 6 to 8 an alternative embodiment of an actuator for the first locking device 10 is shown. In this embodiment, the actuator on three transmission elements or transmission lever 38, 39 and 40 on. The lever 38 is mounted about a pivot point D1, which is arranged approximately centrally in the door lock housing 2. The transmission lever 40 is rotatably mounted at its free end about a pivot point D2 in the door lock housing 2.

The transmission levers 38, 39 and 40 are mutually pivotally secured together and can operate the locking device 10 and the transmission member 13 of the locking device 10.

Like the synopsis of FIGS. 6 to 8 shows, the operation of the locking device 10 is again on the in the door lock housing 2 (in the FIGS. 6 to 8 not shown) is triggered moving latch 3, wherein the latch 3 comes into contact with the carry lever 38 (see FIG. 7 ) and thereby the lever assembly, which corresponds to an approximated Parallelarmgetriebe actuated. FIG. 7 shows here the Moment in which the transmission lever 40, the lock of the first locking device 10 begins to pick up.

FIG. 8 shows the previously explained arrangement in the unlocked position of the first locking device 10. Here, the latch 3 is in its fully retracted position. The door can now be committed.

LIST OF REFERENCE NUMBERS

1

electromechanical door lock

2

Door lock housing / lock box

3

bars

4

electrical / electromechanical actuator

5

spring-loaded trap

5a

wedge-shaped part

5b

movable central part

6

Flapper / keeper

7

Transfer member / plunger

8th

Transmission member / transmission lever

9

Transmission member / transmission lever

10

first locking device (for the trap)

11

second locking device (for the bolt)

12

Transmission member / release lever

13

Transfer member / locking member

14

Transmission member / walnut middle part

15

nut

16

additional case

17

Open retainer

18

Pusher sprung

19

Cam

20

takeaway

21

takeaway

22

waveform

23

waveform

24

blocking surface

25

Nuss stop

26

recess

27

latch spring

29

blocking surface

30

pivot point

38

Transmission link / first transmission lever

39

Transmission link / second transmission lever

40

Transmission link / third transmission lever

D1

fulcrums

D2

fulcrums

Claims (10)

1. An electro-mechanical door lock (1);

   - with a door lock housing (2);

   - with a blocking dead-bolt (3), which is lockable in the door lock housing (2) in a protruding position and is retractable back into the door lock housing (2) by means of an electrical actuation device (4);

   - with a spring-loaded latch-bolt (5) for centring the dead-bolt (3) in its locking bolt position in an opening of a strike plate (6), the latch-bolt (5) having a central part (5b), which is movable inside the door lock housing (2), and a wedge-shaped part (5a), which, in the protruding position of the latch-bolt (5), is at least partially extending from the door lock housing (2), and the wedge-shaped part (5a) being connected to the central part (5b) to allow for a pivotable movement of the wedge-shaped part (5a) in relation to the central part (5b) such that the latch-bolt (5) can be pushed back into the inside of the door lock housing (2), if, from one side of the door lock housing (2) or from the other side thereof, a force acts upon the wedge-shaped part (5a) in the direction of opening or closing of a door equipped with the door lock (1);

   - with first transmission members (7, 8 and 9) for the transmission of a force of the electrical actuation device (4) to the dead-bolt (3);

   - with at first keeper device (10) for blocking the latch-bolt (5) in the protruding position thereof, while the dead-bolt (3) is in a locking bolt position, and

   - with a second keeper device (11) for the dead-bolt (3) in its locking bolt position,

   - wherein the dead-bolt (3) during unblocking and while it is being retracted into the door lock housing (2) can be brought into an operable connection with second transmission members (12, 13) of an actuation device for releasing the blocking of the latch-bolt (5);

   - wherein the first transmission members (7, 8, 9) have an actuator (7), which is driven by the electrical actuation device (4),

   characterized in that

   - the first transmission members (7, 8, 9) comprise the actuator (7) and two transmission members (8, 9) formed as pivotable levers,

   - the actuator (7), by means of the electrical actuation device (4), being movable towards a follower's central part (14) of the door lock such that the follower's central part (14) engages with the levers (8, 9) such that the dead-bolt (3) first is unblocked and, upon completed unblocking, is retracted into the door lock housing (2).
2. A door lock according to claim 1, characterized in that the actuator (7) is translationally movable, the unblocking of the dead-bolt (3) is realized through pivoting the lever (8), and the retracting of the dead-bolt (3) into the door lock housing (2) is realized through pivoting the lever (9).
3. A door lock according to claim 1 or 2, characterized in that the transmission members (8, 9) are formed to be pivotable about a common centre of rotation (30) in the door lock housing (2).
4. A door lock according to one of the claims 1 to 3, characterized in that the transmission member (8) has a curve (22), which can be brought into operational connection with a catch (21) of the follower's central part (14).
5. A door lock according to one of the claims 1 to 4, characterized in that the transmission member (9) has a curve (23), the shape thereof being adapted such that the dead-bolt (3) is completely retracted, if a follower (15) of the door lock (1) abuts against a follower stop (25).
6. A door lock according to claim 5, characterized in that the dead-bolt (3) has a blocking surface (24).
7. A door lock according to claim 6, characterized in that the dead-bolt (3) has a recess (26), which can be brought into operational connection with a hold-open device (17).
8. A door lock according to one of the claims 1 to 7, characterized in that the actuation device comprises a release lever (12), the first keeper device (10) having a blocking member (13), which is spring-loaded and rotatably supported within the door lock housing (2), and able to be brought into operational connection with the release lever (12), which is likewise spring-loaded and rotatably disposed within the lock housing (2), such that the blocking member (13) releases a blocking of the first keeper device (10).
9. A door lock according to claim 8, characterized in that the dead-bolt (3), during its retracting into the door lock housing (2), can be brought into an abutting contact with the release lever (12) such that the release lever (12) is brought into operational connection with the blocking member (13).
10. A door lock according to one of the claims 1 to 7, characterized in that the actuation device comprises a lever arrangement (38, 39, 40) via which the first keeper device (10) can be actuated, the lever arrangement (38, 39, 40) being formed according to a parallel arm assembly.

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