EP2179116B1 - Door lock - Google Patents

Abstract

The invention relates to a door lock (1) with a housing (2) in which there is a bolt (3) which, in a first position projecting out of the housing (2), locks the door lock (1) and can be retracted at least partially into the housing (2) into a second position releasing the door lock (1), with a first spindle (4) for a closing mechanism which can be operated with a key, force transmission means (8) for manually moving the bolt (3) via the first spindle (4, 7), and a movable selector element (11) for changing over functional properties of the door lock (1). According to the invention, it is provided that the selector element (11) can be brought into a release position and into a securing position, wherein a first functional property of the door lock (1) can be obtained in the release position in which the bolt (3) can be brought into the first position via the force transmission means (8), and a second functional property of the door lock (1) can be obtained in the securing position in which a movement of the bolt (3) into the first position can be blocked via the force transmission means (8), and the selector element (11) is operatively connected to the bolt (3) in such a manner that, in each position of the selector element (11), a change in the functional property of the door lock (1) is possible via a movement of the selector element (11).

Description

The invention relates to a door lock with a housing in which a latch is arranged, which locks the door lock in a first protruding from the housing position and in a second unlocking the door lock position at least partially retractable into the housing, a first axis for a with a key operable locking mechanism, power transmission means for manually moving the bolt over the axis and with a movable selector element for the conversion of functional properties of the door lock.

From FI 87682 there is described a door lock of the above mentioned type, the lock being further provided with a closure member disposed on the housing, whereby by the force transmission means in conjunction with a key operation, the closure member moves from a blocking position in which movement of the selector member is not possible to move into a release position in which a movement of the selector element is possible. In practice, however, it has been shown that a blocking of the selector element in a functional property of the door lock can be undesirable. Furthermore, the complex locking mechanism of this door lock has proved to be disadvantageous.

The selector element can be brought into a release position and into a securing position, wherein a first functional property of the door lock can be achieved in the release position, in which the bolt can be brought into the first position via the power transmission means, a second functional property of the door lock in the securing position can be achieved a movement of the bolt is blocked via the power transmission means in the first position, and the selector element is in operative connection with the bolt, that in each position of the selector element, a change of the functional property of the door lock is possible via a movement of the selector element.

The first functional property can be, for example, a self-locking of the door lock, in which the bolt fully extends when the door is closed so that an unlocking can be carried out only via a key operation on the first axis. A release via a pusher is not possible. The second functional feature of the door lock may be that the latch can be moved back and forth both via a key operation and via the pusher on the housing. It is particularly advantageous that in each position of the selector element, the user can move the selector element to vary the functional properties of the door lock according to his wishes.

The selector element is provided on a blocking unit arranged within the housing, the blocking unit assuming a first position in the release position of the selector element and a second position in the securing position of the selector element. In this case, the blocking unit may have a stop and the bolt may be designed with a counter-stop. This is because in the second position of the blocking unit of the stop on the counter-stop, whereby a movement of the bolt is locked in the first position. Conveniently, the direction of displacement of the bolt from the first position to the second position and vice versa is perpendicular to the direction of movement of the blocking unit from its first position to its second position and vice versa aligned.

A door lock according to the preamble of claim 1 is made GB-A-2 097 462 known.

It is an object of the present invention to provide a door lock, in which the disadvantages mentioned are avoided, in particular a door lock is provided, in which at any time the user can make a change in the functional property of the door lock.

To solve this problem, a door lock with the features of claim 1 is proposed. In the dependent claims preferred developments are carried out.

According to the invention, it is provided that the blocking unit has a spring element which assists the movement from the first position to the second position. Furthermore, it can be provided that a locking device is provided on the blocking unit, which holds the respective position of the selector element. In a conceivable alternative, the latching device may have a latching gate with at least two latching positions, in which a latching element engages. Advantageously, the locking element is in the first detent position when the selector element occupies the release position. During a movement of the selector element from the release position into the securing position, the detent element is simultaneously moved into the second detent position along the detent gate.

Advantageously, the blocking unit is arranged in the first position of the selector element spaced from the bolt. There is a play between the blocking unit and the latch so that the latch can be moved back and forth in the first and second positions and vice versa, thus underrunning the blocking unit. Conveniently, in this position of the blocking unit, the bolt can only be retracted from the first position into the housing via a key actuation on the first axle. Preferably, in this case an integrated self-locking spring is biased for the automatic latch exclusion and held the latch in an intermediate position (between the first position and the second position). With an operation of an additional latch, the bolt can be unlocked and moves completely in the first position (self-locking).

In a further measure improving the invention, the blocking unit has a stop element, which is designed at a free end with the stop, and has a coupling element which is connected to the latching device, wherein the stop element and the coupling element are displaceable relative to each other. In an advantageous embodiment of the door lock, the blocking unit can be brought into an intermediate position which lies between the first and the second layer, wherein in the intermediate position of the blocking unit the bolt is in the first position and the selector element is in the securing position.

An alternative of the invention provides that the bolt has a first and a second contacting surface, which are separated by the counter-stop, wherein the first contacting surface of the front plate of the housing faces and the second contacting surface of the front plate of the housing faces away. In this case, in the second position of the blocking unit, the stop element rest on the first contacting surface, and in the intermediate position of the blocking unit, the stop element can rest on the second contacting surface.

The latch may be designed stepwise on the side facing the blocking unit in the area of the counter-stop. While the abutment of the stop member abuts against the counter-stop of the bolt, the bolt assumes an intermediate position which is between the first fully extended position and the second position (fully retracted into the housing position). Conveniently, the contact surfaces of the stop and the counter-stop in the adjustment direction of the blocking unit are slightly inclined. This geometric embodiment of the contact surfaces favors that over a movement of the selector element from the securing position into the release position, the stop is easily detached from the counter-stop of the bolt, whereby a reliable operation of the blocking unit is ensured.

According to the invention can be achieved in the release position of the selector element via a pusher, which is rotatably mounted on a second axis, a movement of the bolt from the first position to the second position and vice versa, wherein in the securing position of the selector element, the pusher is mechanically decoupled to the bolt ,

The housing of the door lock may have a window on which the selector element is movably arranged. The user can easily manually operate the selector element from the outside as desired. Alternatively or additionally, it is conceivable to make a change in the functional properties of the lock via a drive, which is designed in particular as an electromechanical drive. For example, the drive may be a piezo drive with a piezoelectric body to which an electrical voltage can be applied. Due to the piezoelectric effect, the piezoelectric body has a certain deformation. In this way, a mechanical force can be triggered which promotes a movement of the blocking unit, in particular of the selector element. Advantageously, the piezoelectric body comprises quartz, lithium niobate, galium orthophosphate, berlinite, barium titanate (BTO) or lead zirconate titanate (BZT). Alternatively, the piezoelectric body may be made of synthetic, inorganic, ferroelectric and / or polycrystalline ceramic materials. The piezoelectric body may also be made of a plastic, in particular Polyvenylidenfluorid (PVDF).

In a further possible embodiment of the invention, the drive can be designed as a solenoid, which causes a corresponding movement of the blocking unit, in particular of the selector element.

Furthermore, the invention can provide that an activation of the movement of the selector element can be controlled remotely, in particular that the selector element can be remotely controlled by means of a wireless transmission method. In this context, the wireless transmission method may have one of the following standards: Bluetooth, IrDA, Zigbee, Bonjour (Apple), Bluejacking, Bluesnarfing, Bluebugging, NFC, Wireless LAN, WiMAX, Wibree, WiMAX.

In particular, the movement of the selector element from the securing position to the release position allows a remote-controlled locking a door with a simultaneous decoupling of the handle operation, so that only by means of authorized key operations on the first axis, the door can be opened. It has been found that such an electromechanical and / or remote-controlled adjustment of the selector element can be advantageous for door control in the context of building management systems.

Further advantages, features and details of the invention will become apparent from the following description in which, with reference to the drawings, embodiments of the invention are described in detail. The features mentioned in the claims and in the description may each be essential to the invention individually or in any desired combination.

Figur 1

ein erfindungsgemäßes Türschloss mit einer Blockiereinheit, an der ein Selektorelement beweglich angeordnet ist, und einen Riegel, wobei das Selektorelement in einer Freigabestellung und der Riegel in einer ersten vorspringenden Position sich befindet,

Figur 2

das Türschloss gemäß Figur 1, wobei das Selektor- element sich in der Sicherungsstellung und die Blok- kiereinheit in einer Zwischenlage befindet, wobei der Riegel die ers- te Position einnimmt,

Figur 3

das Türschloss gemäß Figur 1, wobei das Selektorelement die Si- cherungsstellung einnimmt, die Blockiereinheit eine zweite Lage aufweist und der Riegel sich in einer zurückgezogenen zweiten Po- sition befindet,

Figur 4

das Türschloss gemäß Figur 1, wobei das Selektorelement sich in der Sicherungsstellung befindet und der Riegel unmittelbar an der Blockiereinheit anliegt und

Figur 5

eine vergrößerte Darstellung des Kontaktbereiches zwischen der Blockiereinheit und dem Riegel.

Show it:

FIG. 1

an inventive door lock with a blocking unit, on which a selector element is movably arranged, and a bolt, wherein the selector element is in a release position and the bolt is in a first projecting position,

FIG. 2

the door lock according to FIG. 1 with the selector element in the locked position and the block kiereinheit is located in an intermediate position, wherein the latch occupies the first position,

FIG. 3

the door lock according to FIG. 1 wherein the selector element assumes the securing position, the blocking unit has a second position and the latch is in a retracted second position,

FIG. 4

the door lock according to FIG. 1 , wherein the selector element is in the securing position and the latch is applied directly to the blocking unit and

FIG. 5

an enlarged view of the contact area between the blocking unit and the bolt.

In FIG. 1 a door lock 1 is shown with a housing 2 in which a latch 3 is movably arranged. The latch 3 is located in a first protruding from the housing 2 position in which the door lock 1 is locked. The door lock 1 also has a first axis 4 for a locking mechanism operable with a key. Furthermore, a second axis 7 is provided, on which an unillustrated pusher is rotatably mounted. Between the first axis 4 and the latch 3, purely schematically illustrated power transmission means 8 are provided, which serve for manually moving the bolt 3 via the first axis 4. The power transmission means 8 may be, for example, diverse sliding elements and / or spring elements, which cause a corresponding movement, in particular a retraction of the bolt 3 by a key movement about the first axis 4. The power transmission means 8 thus serve as a coupling element (s) 18 in order to reliably effect a corresponding movement of the bolt 3 via the first axis 4.

Also, the pusher on the second axis 7 may be in operative connection with the bolt 3 via this power transmission means 8. According to FIG. 1 However, a movement of the bolt 3 from a first position to a retracted, unlocked position only via a key operation about the first axis 4 is possible. The pusher of the second axis 7 is in this case mechanically decoupled to the bolt 3, which is not explicitly shown.

Via a movable selector element 11, a conversion of functional properties of the present door lock 1 can take place. In the present illustration according to FIG. 1 is the selector element 11 in a release position (S1). In this release position, a first functional property of the door lock 1 can be achieved, in which the latch 3 can be brought into the fully extended first position (F1) via the power transmission means 8. This first functional property of the door lock 1, which can be selected via the selector element 11 in the release position, has the function of a self-locking in which, in the case of closing the door, the bolt 3 automatically moves into the first fully extended position and thus the door lock 1 locked. In this case, an additional trap 9 is actuated, which unlocks the latch 3, which then "jumps" into the first position.

The selector element 11 is part of a blocking unit 10 arranged within the housing 2, which in the release position of the selector element 11 according to FIG FIG. 1 is in a first position (A0). It can be clearly seen that in the release position of the selector element 11, the blocking unit 10 is arranged at a distance from the bolt 3. Furthermore, the blocking unit 10 has a stop element 14, which is designed with a stop 12 at its free end, and a coupling element 18. The coupling element 18 is connected to a latching device 15, which has the blocking unit 10 in the upper region. The Stop element 14 and the coupling element 18 are displaceable relative to each other, which will be discussed below.

About fastening means, the coupling element 18 and the stopper member 14 are interconnected. The stop element 14 is designed in this case L-shaped. The housing 2 has on its front panel 2a a window 5, in which the selector element 11 is arranged to be movable. The selector element 11 extends into the interior of the housing 2, wherein the selector element 11 acts directly on the coupling element 18. The blocking unit 10, in particular the stop element 14 is provided with a slot 19. The coupling element 18 and the stop element 14 together form a U-shaped unit, which is designed to be open on one side (to the right). Within this unit, a spring element 13 is provided, which acts on the coupling element 18 in the upper area and on the stop element 14 in the lower area. The spring element 13 is designed here as a compression spring.

The locking device 15 of the blocking unit 10 is formed with a detent gate 15a, a first detent position 16a (R1) and a second detent position 16b (R2). According to FIG. 1 engages a locking element 17 in the first detent position 16a, whereby the selector element 11 is held reliably in the securing position (S1). The latching device 15 is also spring-assisted via a leg spring 15b. The leg spring 15b exerts a greater force than the spring element 13. Thus override the detent spring 15b, the force of the compression spring 13, whereby the respective detent position 16a, 16b is held.

As in FIG. 1 can be seen, the stop element 14 of the blocking unit 10 is formed with the stop 12. The bolt 3 has a corresponding counter-stop 3a. In the present exemplary embodiment, the latch 3 is designed to be stepped on the side facing the blocking unit 10 in the region of the counter-stop 3a. in this connection the bolt 3 has a first and a second contacting surface 6a, 6b, which are separated by the counter-stop 3a. The first contacting surface 6 a faces the front plate 2 a of the housing 2. The second contacting surface 6b faces away from the front plate 2a of the housing 2, wherein the second contacting surface 6b is raised to the first contacting surface 6a. In the first position (A0) of the stop element 14 there is a certain distance between the second contacting surface 6b and the stop element 14, so that driving under the lower edge of the stop element 14 from the latch 3 is possible.

A change of functional properties of the door lock 1, the user can achieve that the selector element 11 from its release position according to FIG. 1 is moved to the securing position (S2), in FIG. 2 is shown. As a result of this movement of the selector element 11, the blocking unit 10 moves into an intermediate layer (A1), in which the stop element 14 rests directly on the second contacting surface 6b of the bolt 3. The movement of the stop element 14 in the intermediate layer (A1) is favored by the compression spring 13. About the movement of the selector element 11 in the direction of the securing position, the coupling element 18 is moved downward, whereby the locking element 17 along the detent gate 15a in the second detent position 16b (R2) moves. While the blocking unit 10 is extended into the intermediate position, the selector element 11 moves within the slot 19.

In the securing position of the selector element 11, a second functional property of the door lock 1 is activated, in which the self-locking according to FIG. 1 is suppressed. Will now according to FIG. 2 the latch 3 is retracted, for example, via a key operation on the axle 4 by means of a lock cylinder, the spring-loaded stop element 14 projects into the second position (A2) and contacts the first one Contact surface 6a of the bolt 3. The bolt 3 takes according to FIG. 3 a second, retracted unlocked position (F3) and at the next working stroke of the bolt 3, the self-locking according to FIG. 1 completely suppressed because the unlocked latch 3 runs with its counter-stop 3a against the stop 14. The first position (F1) according to FIG. 1 can no longer be achieved and the bolt 3 can be retracted both by means of cylinders on the first axis 4 and by means of the pusher on the second axis 7.

In FIG. 4 is the bolt 3 in an intermediate position (F2), wherein the contact surfaces of the stop 12 and the counter-stop 3a abut positively against each other.

In FIG. 5 the contact surfaces of the stop 12 and the counter-stop 3a in the adjustment direction of the blocking unit 10 are slightly inclined. As a result, a movement of the stop element 14 from the second position of the blocking unit 10 in the direction of the first position is favored. The contact surfaces are inclined so that there is no jamming of the stop element 14 on the counter-stop 3a.

In addition to a manual movement of the selector element 11 by the user, the selector element 11 can be activated remotely in order to be moved to its desired position as desired.

LIST OF REFERENCE NUMBERS

1

Locks

2

casing

2a

front panel

3

bars

3a

counterstop

4

first axis

5

window

6a

first contact surface

6b

second contact surface

7

second axis

8th

Power transmission means

9

additional case

10

blocking unit

11

selector element

12

attack

13

spring element

14

stop element

15

locking device

15a

latching guide

15b

Leg spring

16a

first detent position

16b

second detent position

17

locking element

18

coupling element

19

Long hole

Claims (15)

1. A door lock (1) with a housing (2) in which a bolt (3) is arranged which locks the door lock (1) in a first position projecting out of the housing (2) and which is capable of being retracted at least in part into the housing (2) into a second position which unlocks the door lock (1),
   a first axis (4) for a closing mechanism capable of being operated by a key,
   force transmission means (8) for the manual movement of the bolt (3) by way of the first axis (4),
   a movable selector element (11) for changing functional properties of the door lock (1),
   wherein the selector element (11) is capable of being moved into a release setting and into a securing setting, wherein a first functional property of the door lock (1) is capable of being achieved in the release setting in which the bolt (3) is capable of being moved into the first position by way of the force transmission means (8),
   a second functional property of the door lock (1) is capable of being achieved in the securing setting in which a movement of the bolt (3) by way of the force transmission means (8) into the first position is blocked, and
   the selector element (11) is operatively connected to the bolt (3) in such a way that in each setting of the selector element (11) a change in the functional property of the door lock (1) is possible by way of a movement of the selector element (11),
   wherein the selector element (11) is provided on a blocking unit (10) arranged inside the housing (2), wherein the blocking unit (10) occupies a first location in the release setting of the selector element (11) and a second location in the securing setting of the selector element (11), characterized in that the blocking unit (10) has a spring element (13) which assists the movement from the first location into the second location.
2. A door lock (1) according to claim 1, characterized in that the housing (2) has a window (5) on which the selector element (11) is arranged so as to be movable.
3. A door lock (1) according to claim 1 or 2, characterized in that the blocking unit (10) has a stop (12) and the bolt (3) is constructed with a counter stop (3a), wherein the stop (12) rests against the counter stop (3a) in the second location of the blocking unit (10), as a result of which a movement of the bolt (3) into the first position is blocked.
4. A door lock (1) according to any one of the preceding claims, characterized in that the blocking unit (10) has a catch apparatus (15) which holds the respective setting of the selector element (11), wherein in particular the catch apparatus (15) has a catching slide block (15a) with at least two catching settings (16a, 16b) into which a catching element (17) engages.
5. A door lock (1) according to claim 4, characterized in that the catch apparatus (15) is spring-loaded.
6. A door lock (1) according to any one of the preceding claims, characterized in that in the first setting of the selector element (11) the blocking unit (10) is arranged at a distance from the bolt (3).
7. A door lock (1) according to claims 3 and 4, characterized in that the blocking unit (10) has a stop element (14), which is formed at a free end with the stop (12), and a coupling element (18), which is connected to the catch apparatus (15), wherein the stop element (14) and the coupling element (18) are displaceable relative to each other.
8. A door lock (1) according to any one of the preceding claims, characterized in that the blocking unit (10) has an elongate hole (19), wherein the selector element (11) is capable of being moved inside the elongate hole (19) when the functional property of the lock (1) is changed.
9. A door lock (1) according to any one of the preceding claims, characterized in that the blocking unit (10) is capable of being moved into an intermediate location which is situated between the first and the second location, wherein in the intermediate location of the blocking unit (10) the bolt (3) is present in the first position and the selector element (11) is present in the securing setting.
10. A door lock (1) according to claim 3, characterized in that on the side facing the blocking unit (10) the bolt (3) is designed in a stepped manner in the region of the counter stop (3a).
11. A door lock (1) according to claim 7, characterized in that the bolt (3) has a first contacting face (6a) and a second contacting face (6b) which are separated from each other by the counter stop (3a), wherein the first contacting face (6a) faces the front plate (2a) of the housing (2) and the second contacting face (6b) faces away from the front plate (2a) of the housing (2), wherein, in particular, the stop element (14) rests on the first contacting face (6a) in the second location of the blocking unit (10) and the stop element (14) rests on the second contacting face (6b) in the intermediate location of the blocking unit (10).
12. A door lock (1) according to any one of the preceding claims, characterized in that a change in the functional properties of the lock (1) takes place by way of a drive which, in particular, is designed in the form of an electromechanical drive, wherein the drive has, in particular, a piezoelectric body or the drive is a lifting magnet.
13. A door lock (1) according to any one of the preceding claims, characterized in that an activation of the movement of the selector element (11) is capable of being remote controlled, in particular the selector element (11) is capable of being remote controlled by means of a wireless transmission method, wherein the wireless transmission method has, in particular, one of the following standards: Bluetooth, IrDA, ZigBee, Bonjour (Apple), Bluejacking, Bluesnarfing, Bluebugging, NFC, Wireless LAN, WIMAX, Wibree, WiMax.
14. A door lock (1) according to any one of the preceding claims, characterized in that in the release setting of the selector element (11) a movement of the bolt (3) out of the first position into the second position is capable of being carried out by way of a door handle which is mounted in a rotatable manner on a second axis (7), wherein the door handle is decoupled mechanically from the bolt (3) in the securing setting of the selector element (11).
15. A door lock (1) according to claim 3, characterized in that the contact faces of the stop (12) and the counter stop (3a) extend slightly obliquely in the displacement direction of the blocking unit (10).

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