EP1617019A2 - Electromechanical door lock - Google Patents

Abstract

The lock has a door lock housing (2) with a closing latch plate (3) in the housing and a protruding position which is lockable. An electrical operating device (4) in the housing withdraws the latch. A spring-tensioned cage (5) centers the latch plate in its blocking position in an opening of an impact plate (6). The cage has a central part which is mobile inside the housing having a wedge-shaped part. The wedge-shaped part is connected in relation to the central part which lags the wedge-shaped part. Actuatuors (7, 28) move according of the strength of the electrical operating device to the latch plate with a first closing device locked for the blocking the cage in its protruding position, during which the latch plate is in a blocking position. In longitudinal direction of the door lock housing the movable actuator is moved in a direction along the longitudinal axis of the door lock housing with the blockage of the latch plate. The latch plate during its movement in the door lock housing with the second actuator brings a connection to the cage. The second actuator of the first lock is spring-tensioned and has a swiver release (12) stored in the door lock housing.

Description

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

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

Although with the door lock according to this patent u. a. Even a simple structure is to be achieved, this goal can only be partially realized. Because according to the teaching of this patent, a single power transmission member is provided in the form of a movable lever in the longitudinal direction of the door lock, which cancels both the blocking of the bolt and the case in the course of its transfer movement. However, this combined function requires a relatively complicated structure of this transfer member so that it can engage with the two locking devices for the latch or the case for unlocking them.

It is therefore an object of the present invention to provide an electromechanical door lock specified in the preamble of claim 1 way, which allows a simplification of its structure over known constructions.

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

The fact that according to the invention the bolt is exploitable in its withdrawal into the door lock housing for unlocking the case, results in a considerable simplification of the overall construction and thereby a reduction in manufacturing costs.

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 verriegelter Position;

Figur 2:

eine der Figur 1 entsprechende Darstellung in entriegelter Position;

Figur 3:

eine der Figur 1 entsprechende Darstellung einer zweiten Ausführungsform (verschlossene Tür und gesperrter Riegel);

Figur 4:

eine der Figur 2 entsprechende Darstellung der Ausführungsform gemäß Figur 1 (entsperrter Riegel/geöffnete Tür);

Figur 5:

eine abgewandelte Ausführungsform von Übertragungsgliedern zur Entriegelung der Falle (in Teilansicht);

Figur 6:

eine der Figur 5 entsprechende Darstellung eines Zwischenzustandes und

Figur 7:

eine der Figur 6 entsprechende Darstellung bei zurückgeschlossener Position des Riegels und entsperrter Falle.

Show it:

FIG. 1:

A schematically slightly simplified representation of a first embodiment of a door lock according to the invention in the locked position;

FIG. 2:

a representation corresponding to Figure 1 in the unlocked position;

FIG. 3:

a representation corresponding to Figure 1 of a second embodiment (locked door and locked latch);

FIG. 4:

a representation corresponding to Figure 2 of the embodiment of Figure 1 (unlocked latch / open door);

FIG. 5:

a modified embodiment of transfer members for unlocking the trap (in partial view);

FIG. 6:

a representation corresponding to Figure 5 of an intermediate state and

FIG. 7:

a representation corresponding to Figure 6 at zurückgeschlossener position of the bolt and unlocked trap.

FIGS. 1 and 2 show a first embodiment of an electromechanical door lock 1 according to the invention.

The door lock 1 has a door lock housing 2 with a locking latch 3, which is guided in the door lock housing 2 movable. The bolt 3 can be locked in the projecting position, as shown in Figure 1, and can be withdrawn into the door lock housing 2 by means of an electrical actuating device 4 (eg in the form of a suitable electric motor, optionally with a gearbox).

The door lock 1 also has a spring-loaded latch 5, which serves to center the bolt 3 in its locked 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. In the illustrated embodiment, the latch 5 has a central part 5b which is movable in the interior of the door lock housing 2 and a wedge-shaped part 5a which protrudes at least partially out of the door lock 2 in the protruding position of the latch 5 shown in FIG. The wedge-shaped part is connected to the central part for enabling a pivotal movement of the wedge-shaped part relative to the central part. Thereby, the case 5 can be pushed into the interior of the door lock housing 2, when a force acts on the wedge-shaped protruding part of one or the other side of the door lock housing 2 in the direction of opening or closing a door lock provided with the door 1.

FIG. 1 further shows that the door lock 1 has first transmission links 7 and 28 which serve to transmit the force of the electrical actuating device 4 to the latch 3. The transmission member 7 is formed in the illustrated embodiment as a worm wheel which is rotatably mounted in the lock housing 2. The transmission member 7 has a pin 7a, which can engage with a driver 34 of the second transmission member 28, preferably in the form of a longitudinally movably mounted in the door lock housing 2 slide. The transmission member 7 is driven by the drive means 4, for example, arranged on the output shaft of the motor drive screw.

The door lock 1 also has a first locking device 10 for locking the latch 5 in its projecting position. This position is shown in FIG. In this position, the bolt 3 is also in the locked position.

The actuating or transmission member 28 is a component of the first transmission members and has a second locking device 11 for the bolt 3 in its locked position. Figure 1 illustrates this, that the bolt 3 has a pin 3a, which can slide along in a slot-like link 30 of the transmission member 28, which is each provided with at an angle to the slot 30 recesses 8 and 9, in which the pin 3a in his Can engage end positions. In the locking position shown in Figure 1, the pin 3a is arranged in the recess 8, as can be seen in detail from the illustration of Figure 1.

As Figure 1 also illustrates, second transmission members 12 and 13 for canceling the blocking of the case 5 are mounted in the lock housing 2. In the illustrated embodiment, the transmission member 12 is a spring-loaded and rotatably mounted in the door lock housing 2 release lever and the transmission member 13 to a spring-loaded and stored in the door lock housing 2 component that can interact with the release lever 12 in operative connection. The Transfer member 13 is supported in the locking position shown in Figure 1 on a locking surface 24 on the rear end face of the central part 5b.

The aforementioned components are the basic components of the door lock according to the invention. The other components and the function are described below:

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

When opening the door, a force via a (not shown) door handle or a nut 15 is introduced into the door lock 1. The nut 15 is pressed in its normal position by a pusher retaining spring 18, wherein the nut 15 is held simultaneously in the basic position by a nut stop 25. The nut 15 in this case performs a clockwise rotation. Characterized in that the nut 15 is in contact with a driver 29 of the transmission member and the slider 28, the transmission member 28 performs a vertical movement (in Figure 1 upwards) from. By thus initiated movement of the transmission member 28, the locking of the second locking device 11 is released. Upon further rotation of the nut 15, the transmission member 28 is pushed further up. Due to the curved contour of the link 30, the spring-loaded latch 3 is simultaneously pulled into the door lock housing 2.

Just before the spring-loaded latch 3 is in the fully zurückgeschlossenen position (ie, no longer can come into contact with the baffle plate or the striking plate 6), the latch 3 actuates the spring-loaded transmission member 12 in the form of the release lever. The transmission member 12 thereby performs a counterclockwise direction Rotary movement and thus actuates the transmission member 13, which in turn, as shown in Figure 2, is pivoted about its pivot point in the housing 2 upwards and so operates a first locking device 10.

In this state (see Figure 2), the spring-loaded latch 5 can move into the door lock housing 2, while a spring-loaded additional latch 16 can extend out of the door lock housing 2 out. In this state, the door (not shown) can be opened and committed.

Once the latch 3 is in its retracted position, the spring-loaded auxiliary latch 16 engages behind a retainer 31, preferably in the form of a retaining lug of the transmission member 28, holding the transmission member 28 in that position as well as holding the latch 3 in its retracted position , The door can now be committed, with the spring-loaded latch 5 can push into the door lock housing 2, whereas, as Figure 2 shows, the spring-loaded additional latch 16 can be moved out of the door lock housing 2. When closing the door, the case 5 hits the baffle plate 6 and is pressed into the door lock housing 2. Likewise, the additional trap 16 hits the baffle plate 6 and is also pressed into the lock housing 2. While the additional latch 16 is pressed into the door lock housing 2, this dissolves the blocking on the holding device 31, so that the transmission member 28 is released. By a locking spring 27, the transmission member 28 is moved to its initial position and at the same time the bolt 3 in its fully excluded, visible in Figure 1 position, the first locking device 10 locks the latch 5 and then the second locking direction 11 locks the latch 3. The door, which is not shown in the figures for simplicity, is thus closed and locked twice.

Force transmission into the door lock via a key or a lock bit

When opening the door, the force is introduced via a key or a cam 19 into the lock 1 in this mode. The cam 19 performs a clockwise rotation. By thus initiated movement of the cam 19, the transmission member 28 via a driver 32, which is preferably an integral part of the transmission member 28, moves upward.

By thus initiated movement of the transmission member 28, the locking of the second locking device 11 is released.

Upon further rotation of the cam 19, the transmission member 28 is pushed further upwards. Due to the curve contour of the link 30, the spring-loaded latch 3 is retracted at the same time.

With advanced rotation of the cam 19 this comes with a driver 33 of the bolt 3 in engagement. The bolt 3 is now pulled directly over the cam 19, wherein the transmission member 28, due to the gate 30, is pushed further upwards.

Just before the spring-loaded latch 3 is in the fully zurückgeschlossenen position (ie no longer can come into contact with the baffle plate 6), this actuates the spring-loaded transmission member 12. The transmission member 12 in turn performs a counterclockwise rotational movement and actuates so the first locking device 10. By touching the first locking device 10 with the transmission member 12 performs the first locking device 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 moved into the door lock housing 2 and the spring-loaded additional latch 16 from the door lock housing 2.

As soon as the latch 3 is in its retracted position, the spring-loaded additional latch 16 engages behind the holding device 31 and holds the transmission member 28 in this position. Likewise, the latch 3 is held in its retracted position.

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

Force transmission into the door lock via an electromechanical actuator

When opening the door, the force is introduced via the electromechanical actuator 4 or via the transmission member (actuator 7) in the door lock 1 and on the transmission member 28 via the driver 34. The transmission member 7 performs a clockwise rotation and moves the transmission member 28 vertically upward.

By thus initiated movement of the transmission member 28, the locking of the second locking device 11 is released.

Upon further rotation of the transmission member 7, the transmission member 28 is further pushed upwards. Due to the curve contour of the link 30, the spring-loaded latch 3 is retracted at the same time.

Just before the spring-loaded latch 3 is in the fully zurückgeschlossenen position (ie no longer can come into contact with the baffle plate 6), this actuates the spring-loaded transmission member 12. The transmission member 12 in turn performs a directed counterclockwise rotation and actuates Thus, via the transmission member 13, the first locking device 10. By the operation of the transmission members 12 and 13 performs the first locking device 10 in turn a rotary movement in a clockwise direction and releases the blocking of the spring-loaded latch 5.

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

As soon as the latch 3 is in its retracted position, the spring-loaded additional latch 16 engages behind the holding device 31 and holds the transmission member 28 in this position. Likewise, the latch 3 is held in its retracted position, so that the door can now be committed.

The aforementioned operations are apparent from a synopsis of Figures 1 and 2.

Hereinafter, a second embodiment will be described with reference to FIGS. 3 and 4. With regard to all matching components and functions may be referred to the preceding description.

Accordingly, the differences are described on the basis of the following functional description using the example of different force introduction into the door lock:

Force transmission into the door lock via the handle or over the nut

When opening the door, the force on the door handle or the nut 15 is introduced into the lock 1. The nut 15 performs a clockwise rotation. By a driver 20 on the nut 15 and a transmission member or Nussmittenteil 14 performs this rotation with.

Due to the fact that the nut central part 14 is in contact with the carrier 29 of the transmission member or slide 28, this carries out a vertical upward movement.

By thus initiated movement of the transmission member 28, the locking of the second locking device 11 is released.

Upon further rotation of the nut 15, the transmission member 28 is pushed further upwards. Due to the curve contour of the link 30, the spring-loaded latch 3 is retracted at the same time.

Just before the spring-loaded latch 3 is in the fully retracted position, a follower 35 of the nut center 14 actuates the first tumbler 10 on a pin 36 disposed on a trigger portion of the tumbler 10 corresponding to the link 13 of the first embodiment. This is accordingly mounted rotatably and spring loaded in the lock housing 2 and is located with its locking surface 24 on the rear end face of the central part 5b in the locked position.

By touching the first locking device 10 with the driver 35 of the transmission member 14, the first locking device 10 performs a rotational movement in a clockwise direction and releases the blocking of the spring-loaded latch 5.

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

As soon as the latch 3 is in its retracted position, the spring-loaded additional latch 16 engages behind the holding device 31 and holds the transmission member 28 in this position. Likewise, the latch 3 is held in its retracted position.

When closing the door, the case 5 hits the baffle plate 6 and is pressed into the door lock housing 2.

Likewise, the additional trap 16 hits 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 releases the lock on the holding device 31 and the transmission member 28 is released.

By the locking spring 27, the transmission member 28 is in its initial position and at the same time the bolt 3 in its fully excluded Moves position, wherein the first locking device 10 locks the latch 5 and then the second locking device 11 locks the latch 3.

By a positive guidance of the driver 29 of the transmission member 28 in a gate 37 of the transmission member 14 and the transmission member 14 is brought back into its original position. The door is thus closed and locked twice.

Force transmission into the door lock via the key-side cam

When opening the door, the force is introduced via the key or the cam 19 into the door lock 1. The cam 19 performs a clockwise rotation.

By thus initiated movement of the cam 19, the transmission member 28 is moved via the driver 32 vertically upwards. By thus initiated movement of the transmission member 28, the locking of the second locking device 11 is released.

Upon further rotation of the cam 19, the transmission member 28 is pushed further upwards. Due to the curve contour of the link 30, the spring-loaded latch 3 is retracted at the same time. With advanced rotation of the cam 19 this comes with the driver 33 of the bolt 3 in engagement. The bolt 3 is now pulled directly over the cam 19, wherein the transmission member 28, due to the gate 30, is pushed further upwards.

Due to the positive sliding guide 37 of the transmission member 14 with the driver 29 of the transmission member 28 and the transmission member 14 also carries out a clockwise movement with.

Shortly before the spring-loaded latch 3 is in the fully zurückgeschlossenen position, the driver 35 of the transmission member 14 actuates the first locking device 10 on the pin 36th

By touching the first locking device 10 with the driver 35 of the transmission member 14, the first locking device 10 performs a rotational movement in a clockwise direction and releases the blocking of the spring-loaded latch 5.

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

As soon as the latch 3 is in its retracted position, the spring-loaded additional latch 16 engages behind the holding device 31 and holds the transmission member 28 in this position. Likewise, the latch 3 is held in its retracted position.

Force transmission into the door lock via the electromechanical actuator

When opening the door, the force is introduced via the electromechanical actuator 4 or via the transmission member 7 in the door lock 1 and on the transmission member 28 via the driver 34.

The transmission member 7 in this case performs a clockwise rotation and moves the transmission member 28 vertically upward. By thus initiated movement of the transmission member 28, the locking of the second locking device 11 is released.

Upon further rotation of the transmission member 7, the transmission member 28 is further pushed upwards. Due to the curve contour of the link 30, the spring-loaded latch 3 is retracted at the same time.

By the leadership of the driver 29 in the gate 37 and the transmission member 14 in the clockwise direction performs a movement with.

Shortly before the spring-loaded latch 3 is in the fully zurückgeschlossenen position, the driver 35 of the transmission member 14 actuates the first locking device 10 on the pin 36th

By touching the first locking device 10 with the driver 35 of the transmission member 14, the first locking device 10 performs a rotational movement in a clockwise direction and releases the blocking of the spring-loaded latch 5.

The door can now be committed, with the spring-loaded latch 5 extending into the door lock housing 2 and the spring-loaded additional latch 16 protruding from the door lock housing.

As soon as the latch 3 is in the retracted position, the spring-loaded additional latch 16 engages behind the holding device and holds the transmission member 28 in this position. Likewise, the latch 3 is held in its retracted position.

FIGS. 5 to 7 show a variant of an actuating device for the first locking device 10.

Instead of the release lever 12 here is a chain of transfer members 38, 39 and 40 is provided, whose function corresponds approximately to a parallel arm. The transmission members or transmission levers 38, 39 and 40 are in each case rotatably supported in the housing (not shown) in FIGS. 5 to 7, wherein the pivot points in FIG. 5 are denoted by D1 and D2. The pivot point D1 is located approximately in the middle of the lever 38, while the pivot point D2 is located at the free end of the lever 40.

The levers 38, 39 and 40 are rotatably attached to each other.

The transmission levers 38, 39 and 40 are also actuated by the latch 3. This is symbolized in the figures 5 to 7 by the arrows.

After a movement of the bolt 3 from the position in Figure 5 in the position of Figure 6 begins a movement of the lever 38 in the arrow direction, whereby the lever 39 is moved approximately vertically upwards.

FIG. 6 shows the instant in which the transmission lever 40 begins to release the locking of the first locking device 10.

Figure 12 shows the previously explained arrangement in the unlocked position of the first locking device 10. The bolt 3 is in this case in its zurückgeschlossenen position and has thereby caused the unlocking movement of the lever 38 to 40. The locking device is contrary the spring force acting on them has been pivoted upward in a clockwise direction.

In this position, the door can now be committed.

LIST OF REFERENCE NUMBERS

1

electromechanical door lock

2

Door lock housing / lock box

3

bars

3a

Cones of 3

4

electrical / electromechanical actuator

5

spring-loaded trap

5a

wedge-shaped part

5b

movable central part

6

Flapper / keeper

7

Transmission element / actuator

7a

Tenon of 7

8th

recess

9

recess

10

first locking device (for the trap)

11

second locking device (for the bolt)

12

Transmission member / release lever

13

Transmission element / locking lever

14

Transmission member / walnut middle part

15

nut

16

additional case

18

Pusher sprung

19

Cam

20

takeaway

24

blocking surface

25

Nuss stop

27

latch spring

28

Transmission member / slider / actuating lever

29

takeaway

30

scenery

31

holder

32

takeaway

33

takeaway

34

takeaway

35

takeaway

36

spigot

37

Link / link guide

38

transmission member

39

transmission member

40

transmission member

D1

pivot point

D2

pivot point

Claims (5)

Electromechanical door lock (1); - With a door lock housing (2); - With a locking latch (3) which is lockable in the door lock housing (2) in a projecting position and by means of an electrical actuator (4) in the door lock housing (2) retractable; - With a spring-loaded latch (5) for centering the bolt (3) in its locked position in an opening of a baffle plate (6), wherein the case (5) in the interior of the door lock housing (2) movable central part and a wedge-shaped part, the at least partially protruding from the door lock housing (2) in the projecting position of the latch (5), and wherein the wedge-shaped part is connected to the central part for enabling pivotal movement of the wedge-shaped part with respect to the central part, so that the latch (5) enters the inside of Door lock housing (2) hineinindrückbar is when a force acting on the wedge-shaped part from one or the other side of the door lock housing (2) in the direction of opening or closing a door provided with the door lock; - With first transmission members (7, 28) for transmitting the force of the electric actuator (4) to the bolt (3); - With a first locking means (10) for locking the latch (5) in its projecting position, while the bolt (3) is in the locked position and - With an at least substantially in the longitudinal direction of the door lock housing (2) movable actuator (28) as part of the first transmission members (7, 28) having a second locking means (11) for the bolt (3) in its locked position and the movement in one direction along the longitudinal axis of the door lock housing (2) the blocking of the bolt (3) cancels, characterized, - That the bolt (3) in its withdrawal into the door lock housing (2) with second transmission members (12, 13) for releasing the blocking of the latch (5) can be brought into operative connection. Door lock according to claim 1, characterized in that the second transmission members (12, 13) are part of the first locking means (10) and a spring-loaded and rotatably mounted in the door lock housing (2) release lever (12) and a spring-loaded and rotatable in the door lock housing (2) has mounted locking lever (13) which is engageable with the release lever (12) in operative connection. Door lock according to claim 1 or 2, characterized in that the second locking device (11) has a link (30) with end-side retaining recesses (8, 9) which are arranged in the first transmission member (28) and with a pin (3a) of the Riegel's (3) interacts. Door lock according to claim 1, characterized in that the second transmission members (12, 13) comprises a chain of transmission levers (38 to 40), which are designed in the manner of a parallel arm gear. Door lock according to claim 4, characterized in that the first transmission lever (38) is rotatably mounted approximately centrally in the door lock housing and is pivotally connected to the second transmission lever (39) pivotally mounted with the third rotatably mounted in the door lock housing (2) transmission lever (40) connected is.

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