DK2385197T3

DK2385197T3 - Lock

Info

Publication number: DK2385197T3
Application number: DK11164873.9T
Authority: DK
Inventors: Bernd Schenkel
Original assignee: Geze Gmbh
Priority date: 2010-05-06
Filing date: 2011-05-05
Publication date: 2018-07-23
Also published as: EP2385197A2; EP2385197A3; DE102010028651B3; EP2385197B1

Description

Lock

The invention relates to a lock according to claim 1. DE 30 32 086 A1 discloses a panic lock with a locking device controlling a lock latch and/or a lock bolt. An inner handle allows the locking device to be actuated in the opening direction in a panic situation. By means of a change-over device, which consists of a remotely controllable, electrically-, pneumatically-, or hydraulically-acting switching member, the panic function of the locking device can be switched off temporarily. DE 43 40 537 C2 discloses a panic lock that is actuatable by a key and/or by an actuating handle with a split handle follower, nightlatch, tumbler, latch, and latch bolt arranged in a lock housing. An additional latch arranged between the latch bolt and the latch event protrudes, as do the latch and the latch bolt, against the restoring force of a spring element from an opening in the cuff. The additional latch is guided in a longitudinal slot on the bottom of the lock housing, and controls an automatic locking mechanism likewise arranged in the lock housing which locks the latch and the latch bolt against being pushed back when the door is closed. An actuating handle can be coupled for unlocking by an electric switching pulse.

Panic locks of a similar type are known from WO 2004/031517 A1 and from US 1 589 117 A. A disadvantage is that the panic function is only provided from a lock side.

The object of the invention is to further improve a panic lock. This object is achieved through the features of claim 1.

The lock according to the invention comprises a lock mechanism which fulfils the panic function, i.e., that by actuating an actuating handle, such as a lever handle or a panic bar, both the bolt and the latch in the lock will be pulled back to enable an opening of the previously securely locked door.

The lock further has an arrangement for the releasing or the locking of the door which can be actuated electrically. As a result, it is possible to prevent an unauthorised opening of the door, but guarantees an opening of the door in case of hazard. The release takes place automatically, for example, through a fire alarm, as can be detected by a smoke alarm, or due to a power failure, if the release order operates in accordance with the closed current principle, wherein the release is blocked as long as the operating voltage is present. The release can also take place centrally, for example by an operator in a reception area, or by actuating an emergency button for opening the door. The emergency button is therefore advantageously arranged at or near the door.

An application in conjunction with an access control device is also possible, wherein the door can be opened with authorisation. A divided handle follower for this purpose is arranged between the actuating handle and the lock mechanism of the lock. So that an unlocking occurs advantageously, when the actuating handle is already actuated before the release takes place, an energy storage, such as a storage spring, is provided in which the energy introduced by the actuation up until the release is stored temporarily at least until the actuating handle is let go again.

It is envisioned that the lock is implemented for a one-way traffic, for example, in the case of an emergency and safety exit door, or for a two-way traffic, e.g., in connection with the access control device. For the two-way traffic, a three-part handle follower can be provided, each of which has a respective handle disc for each of the control handles. A control of the traffic from both sides of the door is thereby possible.

Particularly in the case of a door in escape and rescue routes that is equipped with a panic bar, it is advantageous that the lock is already released when the panic bar is actuated since a letting go and repeated actuation of the panic bar might not be possible due to persons pushing from behind.

According to the invention, the lock has a system for bridging the storage spring, which is advantageous in opening the door in the event of a jamming of the lock, for example, due to damage or by wind pressure. Since the force to operate the lock that is available through the storage spring is limited, the actuating handle can be rigidly connected to the pressure lever by means of this system, whereby the force introduced to the actuating handle can act directly while bypassing the storage spring on the bolt and the latch. The system for bridging the storage spring is embodied such that by releasing hold of the actuating handle, i.e., by briefly letting go and pressing the actuating handle, the direct coupling can be effected.

In a further embodiment, the lock can have a control device for the release that operates according to the working current principle, i.e., the control device, e.g., an electromagnet, is energised in order to release the lock. In the unenergised starting position, the lock is blocked. The control device can be connected to a fire or smoke alarm device in order to release the lock in case of a hazard, as can be envisioned with doors in escape and rescue routes.

It can also take place by a remote control for visitor management, for example, from a reception area, or it can be connected to an electronic access control system with the control device. Furthermore, the lock can be provided with a switch that can be switched even with light pressure on the actuating handle and thus that controls the control device in order to release the lock. Alternatively, the control device can also operate according to the closed current principle. Thus, the lock is blocked when the control device, e.g., the electro-magnet, is energised. This is advantageous, since when used in a door in escape and rescue routes, the door will automatically be released for safety in the event of a power failure. This embodiment also can also have a switch, which however here is embodied as an opener, and which upon actuation of the actuating handle interrupts the current through the electromagnets in order to release the lock.

In a further embodiment, the control device can have an arrangement with two electromagnets, wherein selection between an operating mode according to the closed current principle or the working current principle can be made by means of a selector switch. The selector switch can be embodied so as to effect the electrical switch-over from one electromagnet to the other.

In a further alternative design of the lock, the electromagnet is arranged outside the lock in the strike plate of the door, whereby advantageously no signal and power supply lines are required on the door leaf. In this way, the electromagnet acts directly on the magnet armature thereof arranged in the region opposite the cuff in the lock, which in turn is designed to release the lock, to which end the magnet armature interacts with a trigger that releases a rocker switch in the lock.

The rocker switch can be arranged to be adjustable by means of a selector switch, whereby in an implementation with a three-part handle follower it is possible for the rocker switch to be associated with the desired handle disc and thus with the accompanying actuating handle. Independently of the release by the electromagnet, the release by the rocker switch can take place directly via the handle disc by the actuating handle. There is furthermore the possibility of placing the rocker switch in a middle position between the handle discs, whereby the release of the lock by the actuating handle is no longer possible.

In addition, a damping device can be provided, which dampens the pivoting movement of the handle disc with the result that the withdrawal of the bolt and the latch takes place with little noise.

In a further embodiment of the lock, a time delay for the opening of the lock and/or an alarm system can be provided. In this way, both the time delay and the alarm system are embodied in a purely mechanical manner within the lock, so that no cable routing and/or power supply lines on the door leaf are required for electrical control. If the lock is actuated for opening the door by means of the actuating handle, the alarm system can effect a signal output, for example, an alarm siren, which will deter a person who wishes to use the door without authorisation. This would also alert persons in the vicinity. It is also possible to transmit a signal to a central monitoring device, e.g., in a reception area, whereby security staff can be informed.

The time delay can be started at the same time as an alarm signal by pressing down the actuating handle. The time delay effects a delay in the opening of the lock according to a certain alarm time.

The different variants can also be partially or completely combined with one another.

The dependent claims describe advantageous possible configurations of the invention. Embodiments are described below in greater detail in the drawings found in the figures. The figures show the following:

Fig. 1 is a side view of a lock with the lateral housing cover taken off;

Fig. 2 is a sectional view along the line ll-ll on the cuff of the lock according to Figure 1; Fig. 3 is a single part of the handle follower of the lock according to Figure 1;

Fig. 4 is another single part of the handle follower of the lock according to Figure 1;

Fig. 5 shows the lock according to Figure 1 with the lever handle actuated, wherein the lock is not released;

Fig. 6 is the lock according to Figure 1 with the lever handle actuated, wherein the lock is released;

Fig. 7 is a view of a three-part handle follower from the cuff outward into the housing. The parts lying in front of the handle follower are not shown;

Fig. 8 shows a view of the lock according to Figure 1 with a control device according to the working current principle for the remote-controlled release of the lock, in the blocked state;

Fig. 9 shows the lock according to Figure 8 in the released state;

Fig. 10 shows a further embodiment of a lock with a control device according to the closed current principle, in the blocked state;

Fig. 11 shows the lock according to Figure 10 in the released state;

Fig. 12 shows a further embodiment of a lock according to the invention with a selector switch for control according to the closed current principle or the working current principle in a first switching state;

Fig. 13 shows the embodiment according to Figure 12 in a second switching state;

Fig. 14 shows a lock according to the invention with an external control on the strike plate and an option for access and with a damping device;

Fig. 15 shows a view of the selector switch, of the lock according to Figure 14, for setting the access from the cuff into the housing. The parts lying in front of the selector switch are not shown;

Fig. 16 is the lock according to Figure 14 with an arrangement for bridging the storage spring in the blocked state;

Fig. 17 is the lock according to Figure 16 in the released state;

Fig. 18 is an enlarged view of the handle disc of the lock according to Figures 16 and 17;

Fig. 19 shows an enlarged view of the pressure lever of the lock according to the invention according to Figures 16 and 17;

Fig. 20 is another embodiment of a lock with an alarm system, and a time delay for the delayed triggering of the lock in the unactuated, blocked state;

Fig. 21 is the lock according to Figure 20 in the released, actuated state;

The examples in Figures 1 through 15 and 20 through 21 are not part of the invention, but rather are objects that facilitate the understanding of the invention.

Figure 1 shows a lock 1 in the side view, with a housing 2 and a cuff 3, with which the lock 1 can be fixed in a lock mortise of a door leaf in a known manner. The housing 2 is shown open and substantially comprises a lock mechanism with a bolt mechanism 5 which fulfils the panic function, and when the lock 1 is actuated by an actuating handle 9, which here is embodied as a lever handle, pulls back the bolt 7 of the door that is lockable via the locking cylinder 6 to be burglar-resistant. The pulling back of the bolt 7 and latch 8 is also possible by actuating the locking cylinder 6 by a mechanism not shown here. The actuating handle 9 is indicated in dashed lines in the figures to show the underlying parts. The lock mechanism also comprises a latch 8 which can also interact with the actuating handle 9. The bolt 7 and the latch 8 also engage a strike plate 4 in the blocked state, which is arranged in a known manner in the door frames, or on the opposite facing door leaves in double-leaf doors. Between the actuating handle 9 and the bolt mechanism 5 is arranged a divided handle follower 10. The handle follower 10 comprises a handle disc 11 and a pressure lever 12, which lie in the pivot axis of the actuating handle 9 and are arranged to be rotatable with respect to one another. The handle disc 11 and the pressure lever 12 are shown as a single part in Figs. 3 and 4.

On the handle disc 11 is a seating 13 for the seating of a mandrel of the actuating handle 9 (not shown here), usually embodied as a square and arranged to be rotationally fixed, whereby when the actuating handle 9 pivots, the handle disc 11 rotates along with the lever handle 9 in the pivot direction thereof. For the return of the actuating handle 9, the handle disc 11 is supported in the horizontal starting position with an extension 22 on a return spring 14, not detailed further here, and supported at the other end in the housing 2. A stop 23 for the extension 22 is provided in the housing 2 for the fixing thereof in the horizontal starting position of the actuating handle 9.

The pressure lever 12 comprises two lever arms 12.1, 12.2, wherein the first lever arm 12.1 of the pressure lever 12 interacts with the latch 8. The latch 8 has a guide 24, in which a pin 25 engages for the guiding of the latch 8. The latch 8 is further supported against the lever arm 12.1 on a spring 26, which enables a pushing back of the latch 8 that is required when the door leaf is closed. A pivoting of the pressure lever 12 with the lever arm 12.1 effects a pulling back of the latch 8 in the housing 2 of the lock 1, whereby the latch 8 comes out of engagement with the strike plate 4.

The second lever arm 12.2 engages in the bolt mechanism 5 for the actuation thereof. The structure of the latch mechanism 5 is thus arbitrary and therefore is not further shown. The pulling back of the bolt 7 into the housing 2 is triggered through pivoting of the pressure lever 12 with the lever arm 12.2 engaged in the bolt mechanism 5, and the bolt 7 comes out of engagement with the strike plate 4. On the pressure lever 12 is further provided an extension 22’, which in its starting position is likewise in abutment with the stop 23. The return to the starting position takes place as a result of restoring forces of the bolt mechanism 5 and/or by the return spring 14 that act on the lever arm 12.2 of the pressure lever 12.

The lock 1 has an arrangement to release or to lock out the opening of the door, which can be electrically actuated, to prevent unauthorised opening of the door but to enable opening of the door in the case of a hazard.

It is advantageous to have an emergency button on or near the door for the release thereof. Additionally or alternatively, the release can take place automatically, for example, by a fire alarm, as can be detected by a smoke alarm. If the release device operates according to the closed current principle, wherein the release is blocked as long as the operating voltage is present, a release takes place automatically in the case of power failure. Furthermore, the release can also take place centrally, for example by an operator in a reception area, or by an access control device, e.g., in conjunction with a card reader, etc.

The release device comprises a lug 21 provided on the pressure lever 12, which interacts with an indentation on a trigger lever 18. Alternatively, a notch can also be provided in the pressure lever 12 for engagement with the trigger lever 18. The trigger lever 18 is rotatably mounted on a bearing 20 and is accommodated in a trigger 19 when there is no release. The blocked position is shown in Fig. 1, wherein the pressure lever 12 is blocked against rotation by the release device.

For the coupling of the divided handle follower 10, a storage spring 15 is arranged between the handle disc 11 and the pressure lever 12 The storage spring 15 is thus partly accommodated in a recess 16 of the handle disc 11 and in a recess 17 of the pressure lever 12, as is shown along the line ll-ll in the sectional view of Fig. 1, through the handle disc 11 and the pressure lever 12 in Fig. 2. The recess 16 can thus be embodied to reach completely through the handle disc 11 or only as a cavity in the handle disc 11. The recess 17 can also be embodied as a cavity in the pressure lever 12 or to reach completely through the pressure lever 12. In addition to the coil spring shown in the figures, for example, a spiral spring, plate spring, or leg spring can be used in a similar arrangement to the same effect as a storage spring 15. The return spring 14 can also be embodied accordingly. Elastomers can likewise be used as spring elements. Alternatively, also only one of the recesses 16, 17 can be provided, wherein a tappet can also be provided on handle disc 11 or the pressure lever 12, which interacts with the storage spring 15, which is particularly advantageous when a spiral spring is used. In a further configuration, the storage spring 15 can be arranged outside the handle disc 11 and/or the pressure lever 12, at least partially encompassing same. Also conceivable is an arrangement of a plate spring, the corresponding ends of which are fixed to the handle disc 11 and the pressure lever 12.

Fig. 5 shows the lock 1 with the actuating handle 9 held down, wherein there is no release of the lock 1. The handle disc 11 that connects to the actuating handle 9 in a rotationally fixed manner via the seating 13 is rotated vs. the return spring 14 in a clockwise direction into the position shown in Fig. 5. Through the partial arrangement of the storage spring 15 both in the recess 16 of the handle disc 11 as well as in the recess 17 of the pressure lever 12, the storage spring 15 is compressed by the rotation of the handle disc 11 because the pressure lever 12 is blocked from rotation in that it is supported by its lug 21 on the trigger lever 18. The energy introduced by the actuation of the actuating handle 9 for the opening of the door is thus first stored in the storage spring 15.

The release of the lock 1 for opening the door takes place by the actuated actuating handle in that the trigger 19 in Fig. 6 pivots in the counter-clockwise sense. This can be effected, for example, by switching off one of the electromagnets, which is not further shown here in the figure. In this way, the trigger lever 18 arranged to be rotatable about the bearing 20 becomes free, and the pressure lever 12 acted upon thereby is lifted from the lug 21 by the storage spring 15 in the clockwise sense. Through the now possible rotational movement of the pressure lever 12, the lever arm 12.1 pushes the latch 8 into the housing 2 of the lock 1, and in a manner not further represented here, the lever arm 12.2 actuates the bolt mechanism 5 whereby the return of the bolt 7 into the housing 2 takes place. Since now both the bolt 7 and the latch 8 are retracted, the door is openable.

The return of the trigger lever 18 back to its starting position, wherein this is accommodated in the trigger 19, takes place through the lug 21 with reverse rotation of the pressure lever 12. A three-piece handle follower 10 is also conceivable, wherein the respective handle discs 11, 11' are arranged on both sides of the pressure lever 12 with the associated return springs 14, 14' and storage springs 15, and connected in each case to an associated actuating handle 9, as shown in Figure 7. Thus, for example, in connection with an access control, a control of the traffic from both sides of the door is possible, wherein the respectively associated trigger lever 18 can be provided with trigger 19. Figures 8 to 11 show further exemplary embodiments, wherein the lock 1 has a control device 27 for the release thereof. Figs. 8 and 9 show a control device 27 which operates according to the working current principle, wherein an electromagnet 28 is energised in order to release the lock 1. The electromagnet 28 has a pivotable magnet armature 29, which is acted on by a spring 30, in order to return the magnet armature 29 to the starting position after switching off the current. The already described trigger 19 is arranged at the magnet armature 29 or is embodied to be a single piece therewith. The lock 1 is blocked in the unenergised starting position, as has already been described above in relation to the Figs. 1 through 5, wherein the trigger lever 18 is accommodated in the trigger 19.

If the electromagnet is energised, the magnet armature 29 is pivoted with the trigger 19 and the trigger lever 18 is released, as shown in Fig. 9. The power supply to the electromagnets 28 can be effected in various ways. In this way, the electromagnet 28 is connected with a fire or smoke alarm device, whereby the lock 1 will be released in the event of a hazard, as is provided with doors in escape and rescue routes. It can also take place by remote control for visitor management, for example, from a reception area, or it can be connected to an electronic access control system with the control device 27. A switch 31 can be provided in connection with the above-mentioned devices or alone, which can be actuated with even light pressure on the actuating handle 9, and can thus charge the electromagnets 28. This can be achieved by means of a contour configured on the handle disc 11, 11' which is controlled by the switch 31 configured as a microswitch. The switch 31 can also be embodied as a reed contact switch, wherein an associated magnet can be arranged on or in the handle disc and can interact with the reed contact switch.

When the actuating handle 9 is held down, the return of the bolt 7 and the entry of the latch 8 will then be effected. The actuation of the actuating handle 9 only takes place after the release of the lock 1 by the energisation of the electromagnets 28, and the return of the bolt 7 and the entry of the latch 8 will then be effected by the actuation through the then already released coupling of the handle discs 11, 11' and the pressure lever 12.

In Figs. 10 and 11 is shown a control device 27 which operates according to the closed current principle. The lock 1 is thus blocked when the electromagnet 28 is energised. This is advantageous, since when used in a door in escape and rescue routes, the door will automatically be released for safety in the event of a power failure. Fig. 10 shows the pivotably mounted magnet armature 29 formed from two lever arms, whereby the trigger 19 is secured from pivoting with respect to the trigger lever 18. If the power supply to the electromagnets 28 is interrupted, the magnet armature 29 will be pivoted by the spring 30, whereby the trigger lever 18 will reach out of the seating of the trigger 19 and become free, as is shown in Fig. 11. A switch 31 can also be provided in this configuration, although it is embodied here as an opener, and upon actuation will interrupt the current through the electromagnets 28 for release. It is conceivable to have an additional external switch which communicates with the switch 31, whereby the function of switch 31 is controllable and a configuration of the lock is enabled.

At the magnet armature 29 is the trigger 19 that is supported against a spring 42, and is arranged to be pivotably movable. It is thus guaranteed that, regardless of the position of the magnet armature 29, the trigger lever 18 can snap into the trigger 19 if the trigger lever 18 can be pivoted by the release of pressure on the actuation handle 9 and the rotating back of the pressure lever 12 by the return springs 14, 14' with the lug 21 in its locked position.

Figs. 12 and 13 show an arrangement with two electromagnets 28, 28' arranged at an angle to one another, wherein selection between an operating mode according to the closed current principle or the working current principle can be made by means of a selector switch 32. The linkage of the spring 30 can be changed with the rotatable selector switch 32 so that at least one of the lever arms of the magnet armature 29, here arranged at nearly right angles to one another, can be pressed in the direction of either the electromagnets 28 or the electromagnets 28'. The selector switch 32 can at the same time effect the electrical switch-over from one of the electromagnets 28, 28’ to the other.

Figs. 14 and 15 show a lock 1 wherein at least one of the electromagnets 28, 28' is located outside the lock 1 in the strike plate 4 of the door. The magnet armature 29 is located directly opposite to the electromagnet 28 in the area of the cuff 3. In turn, the trigger 19 is arranged on the magnet armature 29, pivotally loaded with a spring 42. This embodiment further has a selector switch 33 that interacts with a rocker switch 34 which is embodied as a pivotably mounted, two-armed lever. A first lever arm interacts with the trigger 19, while the second lever arm interacts with the handle discs 11, 1T, which are embodied as cam discs, through which the rocker switch 34 is pivotable with respect to a spring 35. Furthermore, an extension 40 is arranged on the rocker switch 34 which engages in a spindle 41 of the selector switch 33. The extension 40 of the rocker switch 34 - and thus the rocker switch 34 itself - is adjustable in its position along the spindle 41 with respect to the handle discs 11, 1T by rotating the selector switch 33. In an embodiment of a lock 1 with a three-part handle follower, as is described in Fig. 7, this enables the triggering of the trigger 19 alternatively associated to the handle disc 11 or the handle disc 11' and thus to the accompanying actuating handle 9. Independently of the release by the electromagnet 28, the release by the rocker switch 34 can take place directly via the handle discs 11, 11’ by the actuating handle 9. Another possibility is to adjust the rocker switch 34 to a position outside the range of one of the handle discs 11, 1T, for example, in a middle position between the handle discs 11 and 1T, whereby the release of the lock 1 by the actuating handles 9 would no longer be possible.

Fig. 14 furthermore shows a damping device 36, which dampens the pivoting movement of the handle disc 12 with the result that the withdrawal of the bolt 7 and the latch 8 takes place with little noise. To this end, a piston 37 is guided into a cylinder 38 which has a piston rod 39 that is guided through a front wall of the cylinder 38 in a sealing manner. The piston rod 38 is connected with the pressure lever 12 and engages lever arm 12.2. Alternatively, the piston rod 39 can also engage the pressure lever 12 in the area of the lever arm 12.1 or otherwise. The damping device 36 is location independent and can, for example, be arranged vertically.

Figs. 16 and 17 show a lock 1 according to the invention with a system to bypass the storage spring 15. Should the lock 1 jam, for example, due to damage or wind pressure, it is possible by this system for the actuation handle 9 to be rigidly connected with the pressure lever 12, whereby the force introduced to the actuation handle 9 can act directly on the bolt 7 and the latch 8. In this way, rotational movements with respect to one another of the handle discs 11, 11’ and the pressure lever 12 of the divided handle follower 10 can be blocked.

When the actuating handle 9 is pressed in the manner described above, tension is first applied to the storage spring 15, which can be released for opening by the control device 27. If, for the above reasons, opening is not possible despite the release because the spring force of the storage spring 15 is insufficient to withdraw the bolt 7 or the latch 8, the bypass of the storage spring 15 can be effected by releasing hold of the actuating handle 9.

The system for bypassing the storage spring 15 is formed by means of a pivotably arranged catch 44 that is tensioned by a spring 45. The catch 44 is arranged in the handle discs 11, 11' and engages in a guide 47 of the pressure lever 12. The tensioning of the catch 44 by the spring 45 is directed outward, i.e., away from the centre of the handle disc 12. In the blocked condition of the lock 1, wherein the trigger lever 18 is accommodated in the trigger 19, the catch 44 is held down against the force of the spring 45 by a slider 43 arranged on the trigger lever 18. If the actuating handle 9 is pressed, the catch 44 moves in the guide 47, to which end the catch 44 is stepped in the area of the guide 47, as is shown in Fig. 19. Fig. 19 shows a cross-section of the catch 44 in the plane of the pressure lever 12.

If the lock 1 is released by the control device 27, the catch 44 cannot initially pivot outwards because when the actuating handle 9 is pressed the catch 44 is accommodated in a narrow region of the guide 47, in the right-hand area of the guide 47 in Figure 19. If the bolt 7 or latch 8 is not now withdrawn, since the spring force of the storage spring 15 is insufficient, once releasing hold of the actuating handle 9, i.e., once the actuating handle 9 is let go, the catch 44 in the vicinity of the starting position of the actuating handle 9 is in an expanded region to the left of the lug 46 in the guide 47 and can pivot outwards. Then, due to the spring 45 embodied as a leg spring, the catch 44 reaches behind the lug 46 on the pressure lever 12. Several lugs 46 can be arranged in a stepped manner, whereby releasing hold of the actuating handle 9 in several steps becomes possible. A renewed pressing down of the actuating handle 9 through this engagement of the catch 44 on the lug 46 has the effect that that the handle discs 11, 11' are connected directly, i.e., are coupled, to the pressure lever 12 to the exclusion of the storage spring 15. The force of the actuating handle 9 is thus introduced directly to the pressure lever 12 via the handle discs 11, 1T, the catch 44, and the lug 46, which can withdraw the latch 8 and/or the bolt 7 with the lever arm 12.1 or 12.2. A pin 48 is furthermore also arranged, which is provided so that once the actuating handle 9 is let go, the catch 44 will pivot back in the inwards direction against the spring 45 toward the centre of the handle discs 11, 11'. After blocking the lock 1 by the control device 27, the catch 44 is again held down by the slider 43, whereby the handle discs 11, 11' and the pressure lever 12 are decoupled and an actuation of the actuating handle 9 will once again tension the storage spring 15.

Figures 20 and 21 show a further embodiment of the lock 1 according to the invention, wherein a time delay 49 for the opening the lock 1 and an alarm system 50 are provided, as a result of which a pre-alarm is possible before opening. In this way, both the time delay 49 and the alarm system 50 are embodied within the lock 1 in a purely mechanical manner, so that no cable routing and/or power supply lines are required on the door leaf for electrical control. However, an external arrangement for the electronic time delay is also conceivable. When the lock 1 is actuated for opening the door by means of the actuating handle 9, a signal output can thus be effected by the alarm system 50. This can be, for example, an alarm siren, which will possibly deter a person who wishes to use the door without authorisation, or would trigger a signal to a monitoring device in a reception area, whereby security staff would be informed.

To this end, the alarm device 50 has in the lock 1 a magnet 52 that is slidably delegated against a spring 51, which interacts with a magnetic field sensor 53, for example, a reed contact or a Hall element, which can be arranged in the strike plate 4 on the side of the frame. The spring 51 and the magnet 52 are managed in a sleeve 54 fixed in the lock 1. The magnet 52 is connected with a traction rod 55 that has a traction head 56 at the end thereof, which in resting position of the actuating handle 9 bears against an extension 57 of the handle disc 11, 1T, whereby the magnet 52 is moved away from the cuff 3 against the force of the spring 51 and the magnetic field sensor 53 is not activated.

If the extension 57 of the handle disc 11, 11' pivots due to an actuation of the actuating handle 9 in the clockwise sense, as is shown in Fig. 21, the magnet 52 is moved in the direction of the cuff 3 by the spring 51, whereby the magnetic field sensor 53 is activated to output a signal.

At the same time as this alarm signal is output, the time delay 49 is started by actuating the actuating handle 9, which serves to delay the time of opening the lock 1 so that the alarm is first output for a certain period of time before the opening. To this end, it is envisioned that the time delay 49 introduces into the lock mechanism the energy stored in the storage spring 15 with a delay after pressing the actuating handle 9. The purely mechanical time delay 49 consists of a damping element in a cylinder 58 with a slidably arranged piston 59 on which a traction rod 60 is arranged. The traction rod 60 likewise has a traction head 56 at the end thereof which interacts with the extension 57 of the handle disc 11, 1T. On the traction rod 60 is furthermore arranged a tappet 61, which interacts with rocker switch 34 into which it is designed to fit. It is also possible to use alternative damping elements.

If the actuating handle 9 is pressed so that the extension 57 of the handle disc 11, 11' pivots in the direction of the cuff 3, the piston 59, tensioned by the spring 62, that is in the cylinder 58 likewise moves in the direction of the cuff 3. The piston 59 is guided with a small gap to the inner wall of the cylinder, whereby a damping of the sliding movement of the piston 59 is effected due to forced slow overflow of air from one side of the piston to the other side of the piston in the cylinder 58, to which end a borehole or a valve can be provided in the piston 59. A damping medium other than the ambient air can also be envisioned, e.g., oil. Through the sliding movement of the piston 59 and traction rod 60, after a certain period of time the tappet 61 reaches abutment with the rocker switch 34 and pivots same clockwise. As a result, the trigger 19 is actuated and the trigger lever 18 becomes free, whereby the lock 1 is now released after a time delay with respect to the actuation of the actuating handle 9, and the bolt 7 and the latch 8 are retracted.

Upon the letting go of the actuating handle 9, a pivoting back of the extension 57 of the handle disc 11, 11' is effected by the return spring 14. As a result, the extension 54 reaches abutment with the traction heads 56 of the traction rod 55 of the alarm system 50 and of the traction rod 60 of the time delay 49, whereby the magnet 52 and the piston 59 are each moved back to the respective starting positions thereof.

To this end, a valve arrangement can be provided in the piston 59 of the time delay 49 which permits a slight backward movement into the starting position with the actuating handle 9 unactuated, while a larger opening in the piston 59 is released.

At the same time, the tappet 61 on the traction rod 60 disengages with the rocker switch 34, whereby the re-locking of the lock 1 is enabled by the trigger lever 18 snapping into the trigger 19.

Of course, the variants shown in the various exemplary embodiments can be combined with one another.

List of Reference Symbols 1 Lock 31 Switch 2 Housing 32 Selector switch 3 Cuff 33 Selector switch 4 Strike plate 34,34’ Rocker switch 5 Bolt mechanism 35 Spring 6 Locking cylinder 36 Damping element 7 Bolt 37 Piston 8 Latch 38 Cylinder 9 Actuating handle 39 Piston rod 10 Handle follower 40 Extension 11,11’ Handledisc 41 Spindle 12 Handle lever 42 Spring 12.1 Lever arm 43 Slider 12.2 Lever arm 44 Catch 13 Seating 45 Spring 14,14’ Return spring 46 Lug 15 Storage spring 47 Guide 16 Recess 48 Pin 17 Recess 49 Time delay 18,18’ Trigger lever 50 Alarm system 19 Trigger 51 Spring 20 Bearing 52 Magnet 21 Lug 53 Magnetic field sensor 22,22’ Extension 54 Sleeve 23 Stop 55 Traction rod 24 Guide 56 Traction head 25 Pin 57 Extension 26 Spring 58 Cylinder 27 Control device 59 Piston 28,28’ Electromagnet 60 Traction rod 29 Magnet armature 61 Tappet 30 Spring 62 Spring

Claims

LåsLock

1. Lås (1), med en låsemekanik, der styrer en falle (8) og/eller en rigel (7), med i det mindste et betjeningsgreb (9), der er koblet til låsemekanikken til betjening af fallen (8) og/eller riglen (7) ved hjælp af i det mindste en lagerfjeder (15), hvor lagerfjederen (15) lades ved betjening af betjeningsgrebet (9), og med en frigivelsesanordning, der frigiver overførslen af energien, der er lagret i lagerfjederen (15), til betjening af låsemekanikken i åbningsretningen, kendetegnet ved, at lagerfjederen (15) kan omgås ved en efterfølgende betjening af betjeningsgrebet (9), og kraften, der overføres ved betjeningsgrebet (9), under omgåelse af lagerfjederen (15) kan indvirke direkte på riglen (7) og/eller fallen (8).A lock (1), with a locking mechanism controlling a trap (8) and / or a bolt (7), with at least one operating handle (9) coupled to the locking mechanism for operating the trap (8) and / or the bolt (7) by means of at least one bearing spring (15), wherein the bearing spring (15) is charged by actuating the control handle (9) and with a release device which releases the transfer of the energy stored in the bearing spring (15). ), for operating the locking mechanism in the opening direction, characterized in that the bearing spring (15) can be circumvented by a subsequent operation of the operating handle (9) and the force transmitted by the operating handle (9) can bypass the bearing spring (15) directly on the bolt (7) and / or the drop (8).

2. Lås ifølge krav 1, kendetegnet ved, at betjeningsgrebet (9) er forbundet med en medbringer (10), der omfatter en håndtagsskive (11, 11’) og en håndtagsarm (12), der kan forskydes i forhold til håndtagsskiven (11, 11’) til tilbagetrækning af riglen (7) og/eller fallen (8).Lock according to claim 1, characterized in that the operating handle (9) is connected to a carrier (10) comprising a handle washer (11, 11 ') and a handle arm (12) which can be displaced relative to the handle washer (11). , 11 ') for retracting the bolt (7) and / or the drop (8).

3. Lås ifølge krav 2, kendetegnet ved, at en spærre (44), der påvirkes af en fjeder (45) og er placeret svingbart på håndtagsskiven (11, 11’), griber ind i en føring (47) på håndtagsarmen (12).Lock according to claim 2, characterized in that a lock (44) actuated by a spring (45) and pivotally mounted on the handle washer (11, 11 ') engages a guide (47) on the handle arm (12). ).

4. Lås ifølge krav 3, kendetegnet ved, at spærren (44) griber bag om en ansats (46), der er placeret i føringen (47), hvorved håndtagsskiven (11, 11’) under udelukkelse af lagerfjederen (15) er forbundet direkte med håndtagsarmen (12).Lock according to claim 3, characterized in that the lock (44) engages behind a shoulder (46) located in the guide (47), whereby the handle washer (11, 11 ') is connected to the locking spring (15). directly with the lever arm (12).

5. Lås ifølge krav 4, kendetegnet ved, at flere ansatser (46) er placeret trindelt i føringen (47), hvorved betjeningsgrebet (9) kan betjenes efterfølgende i flere trin.Lock according to claim 4, characterized in that a plurality of abutments (46) are arranged in stages in the guide (47), whereby the operating handle (9) can be operated subsequently in several steps.

6. Lås ifølge krav 1, kendetegnet ved, at spærren (44), når låsen (1) er låst ved hjælp af aktiveringsanordningen (27), holdes nede af glideren (43), hvorved spærren (44) kan bevæges frit i føringen (47), og håndtagsskiven (11, 11’) og håndtagsarmen (12) er afkobl et.Lock according to claim 1, characterized in that, when the lock (1) is locked by the actuator (27), the lock (44) is held down by the slider (43), whereby the lock (44) can move freely in the guide ( 47), and the handle washer (11, 11 ') and the handle arm (12) are decoupled.

7. Lås ifølge krav 3, kendetegnet ved, at der er tilvejebragt en stift (48), der, når betjeningsgrebet (9) løsnes, svinger spærren (44) tilbage mod fjederen (45) i retning mod midten af håndtagsskiven (11, 11’).Lock according to claim 3, characterized in that a pin (48) is provided which, when the control handle (9) is released, the lock (44) swings back towards the spring (45) towards the center of the handle washer (11, 11). ').