WO2015010670A1

WO2015010670A1 - Closing device having emergency opening system

Info

Publication number: WO2015010670A1
Application number: PCT/DE2013/000409
Authority: WO
Inventors: Eberhard Bartholdi
Original assignee: Eldomat Innovative Sicherheit Gmbh
Priority date: 2013-07-25
Filing date: 2013-07-25
Publication date: 2015-01-29

Abstract

The invention relates to a closing device having a bar element, which can be moved automatically to and fro between a closed position and an open position during normal operation, the bar element being prestressed in the closed position during normal operation, characterised in that an actuation device is provided, by means of which the bar element can be moved manually from the closed position to the open position during emergency operation, when the prestress into the open position is no longer present. A method for emergency opening of an automatic closing device comprises: providing an automatic closing device, providing an actuation device, actuating the actuation device, actuating an unlocking device, and actuating the actuation device until the bar element is in the open position.

Description

LOCKING DEVICE WITH EMERGENCY OPENING

The present invention relates to a locking device with a locking element, which is automatically movable in normal operation between a closed position and an open position back and forth, wherein the locking element is biased in normal operation in the closed position. The present invention also relates to a method for emergency opening of such a closing device.

Mechanical closing devices, for example door locks, which are actuated automatically are known from the prior art. Automatic actuation is performed regularly using a remote-controlled electromagnetic door opener. In normal operation, the operation of a pusher is not required for opening the door lock. Pushers for manually opening such a door lock are not always provided

The disadvantage of such a door lock is that mechanical components in the door lock can fail, and then the opening by means of the electromagnetic door opener and its locking is not possible. A user will then stand in front of a locked door and can not open the locking device.

The locking devices of the aforementioned prior art have a locking element which is biased in a closed position by a compression spring in the closed position. Upon actuation of an electromagnetic door opener and thereby unlocking the bolt is automatically withdrawn with the assistance of the compression spring in the open position.

If the compression spring is damaged or has lost its spring force, the locking element can not or only partially be retracted to the open position upon actuation of the electromagnetic door opener.

The locking device then remains locked despite actuation of the electromagnetic door opener.

The object of the present invention is therefore to develop a locking device of the type mentioned in such a way that it can be manually operated in an automatic normal operation in the presence of disturbance in an emergency operation to release a lock. The object is achieved in that an actuating device is provided, via which the locking element in the emergency mode, when the bias voltage has fallen into the open position, manually from the closed position into the open position is movable.

The invention is also achieved by the method according to claim 12.

With the present invention, it is possible to manually open a normally automatically locking and opening closure device during normal operation, even if the locking element is no longer biased in the closed position and can no longer support a movement of the locking element in the open position. This allows a user to manually open the locking device if the automatic opening fails.

A further advantage of the present invention is that the actuating device mechanically triggers an unlocking device in emergency operation. The unlocking device is provided to release the locked in the closed position locking element to move it into the open position can. In normal operation, the unlocking device is automatically triggered. In an emergency operation, the actuating device now triggers the unlocking device manually mechanically, so that the path of the locking element into the open position is free.

Another advantage of the present invention is that the releasable unlocking device is blocked at a stop and can be manually separated from it in an emergency operation.

Another advantage of the present invention is that the actuator comprises an emergency lever which engages the unlocking device. An actuation of the actuating device causes the emergency lever to engage the unlocking device and then triggers it to lift the blocking of the locking element in the closed position, so that with continued actuation of the actuating device, the locking element can be brought into the open position.

Another advantage of the present invention is that the emergency lever engages upon actuation of the actuating device to the unlocking device. This makes it possible to release the unlocking of the stop. For the release, it is advantageous that the emergency lever has a free end, which actuates the unlocking device on actuation of the actuator and separates it from the stop.

A further advantage of the present invention is that the separation of the unlocking device from the stop causes the locking element to be moved to the open position upon continued actuation of the actuating device. The separation of the unlocking device is thus carried out such that the blocking of the locking element in the closed position canceled and the movement of the locking element can be carried out unhindered in the open position.

A further advantage is that the unlocking device has a pivot axis about which the unlocking device can pivot during operation of the actuating device in emergency operation. This allows the separation from the stop easily done.

Another advantage of the present invention is that the actuator comprises a pusher releasably connected to a nut. In emergency operation, the pusher may be inserted into the nut of the closing device to move the locking element manually from the closed position to the open position.

Another advantage of the present invention is that the nut is connected to a latch member which acts on the emergency lever upon actuation of the pusher. Thereby, the force exerted on the pusher force is transmitted directly via the nut and the latch member on the emergency lever, so that the free end of the emergency lever can act on the unlocking device to trigger this.

Another advantage of the present invention is that the latch member is coupled via a lever means with the locking element, such that the locking element is movable upon actuation of the pusher in the open position. This makes it possible to effect by pressing the pusher and the movement of the locking element from the closed position to the open position when the emergency lever has separated the unlocking device from the stop.

Another advantage of the present invention is that the latch member is coupled to a latch member, such that the latch member is movable upon actuation of the latch in an open position. This makes it possible to use the locking device with the emergency opening in conjunction with locks that have a trapping element. An embodiment of the present invention will be described below with reference to the drawings. Show it:

Figure 1 is a schematic view of the lock device according to the invention from a main page.

Figure 2 is a schematic view of the essential components of the invention of the closing device according to the invention of Figure 1 in the closed position ..; and

Fig. 3 is a schematic representation of the essential components of Fig. 2 in the open position.

In Fig. 1 is shown schematically and in side view a closing device 1 according to the present invention in all details. FIG. 1 serves to obtain an overall impression of the closing device 1. The present invention relates in the locking device 1, the components that contribute to an emergency opening substantially when an automatic opening due to a failure of a compression spring is not possible. In Fig. 1, these essential components of the emergency opening are designated by "N".

The locking device 1 shown in Fig. 1 can be installed in a wall opening closing components, such as in the moving part of a door. In Fig. 1, the locking device 1 is shown in a closed position.

For a better illustration of the present invention, reference is now made to FIG. Fig. 2 shows a part of the closing device of Fig. 1 and omits the components of Fig. 1, which do not contribute significantly to the present invention.

In Fig. 2, the part of the closure device 1 is also shown in the closed position of FIG. In the closed position engage in the present embodiment, a locking element 3 and a latch member 5 through associated openings 7 in a faceplate 9 through and into corresponding recesses (not shown) of a striking plate (not shown) to a wall opening or a door frame (not shown) , In Fig. 2, a compression spring 11 is shown without function by a sketched cross. In a normal operation, the locking element 3 located in the closed position is biased by the compression spring 11 into an open position. The open position of the locking element 3 is shown schematically in FIG. In normal operation, an opening operation is triggered by an electromagnetic door opener (not shown). This causes the release of an unlocking device 13 and thereby the release of the spring action of the compression spring 11 and thus the withdrawal of the locking element 3 in the open position (Fig. 3).

In case of failure of the compression spring 11, the automatic opening of the locking device 1 using the electromagnetic door opener can not be done. The bias of the locking element 3 is then eliminated, so that even upon release of the unlocking device 13, the withdrawal of the locking element 3 in the open position is not possible.

In such a case, there is an emergency operation according to the invention. The locking device 1 has an actuating device 15, via which the locking element 3 in an emergency operation, when the bias has fallen into the open position, manually from the closed position to the open position is movable. The actuating device 15 comprises the unlocking device 13, which is mechanically triggered in emergency operation. The unlocking device 13 cooperates with a stop 14. In the closed position shown in Fig. 2, the unlocking device 13 abuts with an edge against the stop 14 and thus blocks a movement of the locking element 3 in the open position _z

The unlocking device 13 is pivotally mounted about an axis 17 and has a hook-shaped projection 19 on an upper side.

The unlocking device 13 has a recess 21, in which the hook-shaped projection 19 engages. The hook-shaped projection 19 of the unlocking device 13 is biased by a spring 24 (FIG. 1) in the direction of the recess 21. In the closed position, the unlocking element 13 blocks the stop 14. As a result, the locking element 3 is held in the closed position against the action of the compression spring 11 in normal operation. Even in emergency operation, the blockage causes the locking element 3 can not be returned to the open position.

For this reason, the actuating device 15 includes an emergency lever 23 which engages with a free end 25 of the unlocking device 13. In the present embodiment, the free end 25 engages the hook-shaped projection 19 of the unlocking device 13.

The emergency lever 23 is positively connected to a latch member 27. In the latch part 27 is a nut 29 is formed, in which a pusher (not shown) can be releasably inserted but functionally fixed. A clockwise rotation of the pusher in the nut 29 causes the latch member 27 to also rotate in a clockwise direction. In this case, the positive connection between the latch member 27 and the emergency lever 23 is released and the emergency lever 23 is rotated due to the rotation of the latch member 27 in the opposite direction, so that the free end 25 of the hook-shaped projection 19 against the biasing force of the spring 23 from the recess 21 out and moved around the pivot axis 17 around. This results in that the unlocking device 13 moves out of the blocking engagement on the stop 14 and is released or separated therefrom.

The latch member 27 also has a lever piece 31 that, upon rotation of the latch member 27 clockwise abuts an arcuate portion 33 of a lever member 35 so that it rotates counterclockwise. The lever element 35 is fastened with one end 37 to the locking element 3, so that this is pulled on further rotation of the latch member 27 back into the open position shown in Fig. 3.

The latch member 27 rotates by actuation of the nut 29 inserted pusher. In other embodiments, other manual actuation elements may be provided which cause the release device 13 to be triggered. There are also embodiments conceivable in which the unlocking device 13 is integrally formed and the triggering takes place in other ways.

FIG. 3 schematically illustrates the emergency opening system described in FIG. 2 after this has been carried out successfully and the locking element 3 is in the open position. On the way from the closed position to the open position, the latch member 27 is rotated by an angle from the closed position. The lever piece 31 has migrated to the circular arc-shaped portion 33 to the outside. The positive connection between the latch member 27 and the emergency lever 23 is almost completely canceled. The latch member 27 has encountered in its rotation with an edge 39 on a projection 41 of the emergency lever 23, this approach 41 has taken a piece and thereby causes the rotation of the lifting member 31 in the opposite direction. By the rotation of the lever member 35, the locking element 3 was taken to the open position.

In the present embodiment, a trap element 5 is also shown. In other embodiments, the closing device according to the invention may also be present without a trap element. Typically, in the embodiment as a door lock and a trap is provided. In the present embodiment, the latch member 27 is connected to the latch ment 5 movably connected. For this purpose, the latch part 27 comprises a first extension piece 43 which engages vertically in the latch element 5 in the closed position (FIG. 2). At the extension piece 43 is a web 45, which engages horizontally in the closed position in the latch member 5 in the closing direction in the closed position. The web 45 is guided horizontally over a distance and the extension piece 43 abuts on a side facing away from the faceplate 9 to a projection 47 at. Upon actuation of the pusher and thus the latch member 27 in the clockwise direction, the extension piece 43 abuts the projection 47, whereby the latch member 5 is withdrawn from the closed position shown in Fig. 2 in the open position shown in Fig. 3. The actuation of the actuating device 15 thus simultaneously leads to the withdrawal of the latch element 5 and to the withdrawal of the latch element 3. In the open position shown in FIG. 3, the user can open the movable part, for example a door, without an obstacle.

After replacement of the defective compression spring 11, the closing device can be operated automatically again using the electromagnetic door opener. The emergency operation is then completed.

LIST OF REFERENCE NUMBERS

1 locking device

3 locking element

5 trap element

7 openings

9 faceplate

11 compression spring

13 unlocking device

14 stop

15 actuator

17 axis / swivel axis

19 hook-shaped projection

21 recess

23 emergency lever

24 spring

25 free end

27 latch part

29 nut

31 lever piece

33 arcuate section

35 lever element

37 end

39 edge

41 approach

43 first endpiece

45 footbridge

47 advantage

Claims

claims

1. Locking device (1) with a locking element (3), which is automatically movable back and forth in normal operation between a closed position and an open position, wherein the locking element (3) is biased in the closed position in normal operation,

characterized,

in that an actuating device (15) is provided, by means of which the locking element (3) can be moved manually from the closed position into the open position in emergency mode when the bias voltage has fallen into the open position.

2. Locking device according to claim 1,

characterized,

the actuating device (15) mechanically triggers an unlocking device (13) during emergency operation.

3. Locking device according to claim 2,

characterized,

that the releasable unlocking device (13) is blocked in normal operation at a stop (14) and is released in an emergency operation of the stop (14).

4. Locking device according to one of claims 1 to 3,

characterized,

in that the actuating device (15) comprises an emergency lever (23) which acts on the unlocking device (13).

5. Locking device according to claim 3 or 4,

characterized,

the emergency lever (23) acts on the unlocking device (13) when the actuating device (15) is actuated.

6. Locking device according to one of claims 3 to 5,

characterized,

in that the emergency lever (23) has a free end (25) which, on actuation of the actuating device (15), separates the unlocking device (13) from the stop (14).

7. Locking device according to claim 6,

characterized, in that the separation of the unlocking device (13) from the stop (14) causes the locking element (3) to be moved into the open position upon continued actuation of the actuating device (15).

8. Locking device according to one of claims 3 to 8,

characterized,

in that the unlocking device (13) has a pivot axis (17) and, when the actuating device (15) is actuated, pivots about the pivot axis (17) and separates from the stop (14).

9. Locking device according to one of the preceding claims,

characterized,

in that the actuating device (15) comprises a pusher which is detachably connected to a nut (29).

10. Locking device according to claim 9,

characterized,

that the nut (29) is connected to a latch part (27) which acts on the emergency lever (23) when the pusher is actuated.

11. Locking device according to claim 9 or 10,

characterized,

in that the locking part (27) is coupled to the locking element (3) via a lever device (35) such that the locking element (3) can be moved into the open position upon actuation of the push-button.

12. Locking device according to one of claims 9 to 11,

characterized,

in that the latch part (27) is coupled to a latch element (5), such that the latch element (5) is movable into an open position upon actuation of the latch.

13. A method for emergency opening of an automatic closure device according to one of claims 1 to 12, comprising the steps:

- Providing an automatic closing device;

- providing an actuating device;

- Actuation of the actuator;

- Actuation of an unlocking device; and - Actuate the actuator until the locking element is in the open position.