EP2474692B2 - Door closing device and method for opening a door closing device - Google Patents

Description

The invention relates to a door with a door leaf and door lock device, for example a door with an escape door function, with an electromechanical lock for unlocking, with a handle for operating the lock, and with a mandrel for closing a bolt by means of a rotary movement, and a method for opening a door lock device . The invention also relates to a mandrel and a fitting for such a door lock device and the use of an energy store for generating a torque on a mandrel of a door lock device.

Various designs of generic lock devices are known which have an electromechanical lock for unlocking, for example from DE 20207283 U1 or WO 2004/031517 A1 . As is known, a stable pin, which is usually designed as a square, is referred to as a mandrel, which represents the rotary connection between the follower of the lock and the fitting or handle. The lock is typically used to release the lock device by a control center, an authorized operator or by triggering an emergency button or the like. In the case of conventional locks for escape doors, structural measures must be taken in order to prevent the unlocking mechanism from self-locking under preload, ie when pressure is exerted on the mandrel via the handle.

In the case of doors in escape door systems in particular, it is important that anyone in the direction of escape can easily open them, even in the event of a power failure. Locks in emergency exit systems therefore work according to the quiescent current principle, i.e. they are locked when energized and released when de-energized. On the other hand, escape doors should not be able to be opened without authorization from the outside. Up until now, security locks could be used on escape doors to make unauthorized access from the outside more difficult. On the other hand, the use of burglar-proof locks for escape doors was ruled out because they are based on the open circuit principle, i.e. the door is prevented from being opened in the event of a power failure. Escape doors are also protected against vandalism in that the handles are subjected to a pretension which, when actuated, opposes a predetermined resistance which weakens hard impacts with the handle which would otherwise affect the inside of the lock and could cause damage.

The invention is based on the object of specifying a door with a door lock device and a method of the type mentioned at the outset, which ensure reliable opening even under preload and at the same time reliably prevent manipulation of the handle.

This object is achieved in terms of the device in that the handle is followed by a mechanical energy accumulator, which stores a force applied to the handle, that the energy accumulator is operatively connected to the mandrel on the output side in such a way that the stored force is converted into a torque acting on the mandrel is, and that the lock is downstream of the force accumulator. In terms of the method, the object is achieved in that the power flow is routed from the handle indirectly via a power store to the mandrel, that the stored power is used to rotate the mandrel, and that the stored power is used as a function of the lock. Any control element that can be operated by hand and releases the door mechanically can be used as a handle. It can be a pusher, a push bar, a handle bar or the like.

With regard to the lock fitting, the problem is solved with a split follower and a spring accumulator which is operatively connected to a part of the follower on the handle side in such a way that the spring accumulator is tensioned with a rotary movement of the handle part, and which is connected to the other part of the follower on the lock side in is operatively connected in such a way that it is acted upon by the spring accumulator when the lock is released. A lock fitting, which can also be referred to as a door fitting, is a shield-shaped component which can be mounted on a door leaf and which can have a cavity on the underside facing the door, and on which a handle can be mounted. They have an opening for a mandrel to pass through. It is particularly advantageous to design the lock fitting, the divided follower, the energy store and the lock as a separately mountable assembly unit. The object is achieved with the mandrel in that it is divided into two sections, between which an energy accumulator is arranged.

The invention has the advantage that the force required to act on the lock can be set via the force accumulator in such a way that no self-locking can occur even under preload. Because the handle is moved against the elastic preload of the spring accumulator, there is also good protection against vandalism. Since the lock is arranged on the inside, it is also possible, independently of this, to design the lock to be burglar-proof on the outside with an electromechanical lock based on the open-circuit principle. The invention can equally be used with a mortise lock and with a screw-on lock.

A preferred development of the invention is that the lock is designed as a rotary lock that acts on the follower. In principle, the lock can be arranged close to the follower or within the door fitting or at any other point along the mandrel, so that the door lock device can be designed in a variety of designs and conventional locks can be retrofitted is possible. In particular, it is possible to arrange the divided follower together with the energy store and the lock within a lock housing or outside of the lock housing but within a door leaf. An arrangement between the door leaf and lock fitting is also possible, or completely within a lock fitting. The arrangement can preferably be designed as a separately mountable unit that is installed in addition to conventional locks.

As an alternative to the door lock device, in which the energy store is designed as a reset device for the handle, with the stored force being released again, it is possible to design the energy store in such a way that it does not release the stored force after a force has been applied when the handle is in its basic position is returned. The stored power is then released immediately as soon as the lock is released, without having to operate the handle.

A preferred development of the invention is that the lock is designed as an electromechanical holding brake, which preferably works according to the quiescent current principle.

If the force accumulator is subjected to a predetermined initial load, so that an elastic counter-pressure is present when the handle is pressed down, protection of the device against improper depression (vandalism) is guaranteed. The characteristic curve of the force accumulator is preferably designed in such a way that a stop is reached at maximum actuation force. The characteristic can be linear or progressive. The response force of the lock is expediently below the maximum actuation force.

It is particularly advantageous that the force accumulator is designed as a spring accumulator. Tension and compression springs, torsion springs, torsion springs and spiral springs have proven to be suitable.

It has proven to be expedient if a first gear is arranged between the handle and the energy accumulator, via which the energy accumulator is acted upon, and/or that a second gear is arranged between the energy accumulator and the mandrel, which gear is acted upon by the energy accumulator. It is advantageous for the downstream lock that the lock is in operative connection with the second gear, so that the mandrel is relieved as long as the lock is not released.

For use in an escape door lock that includes panic and emergency exit systems, the lock is designed as a quiescent current lock, with the lock preferably being operatively connected to an emergency button or to a control center. However, the invention can also be used advantageously in access control systems. In this case, the lock is designed as a working current lock. In this application, it can be operatively connected either to a control center or to a device with which a user's access authorization is checked. The invention here has the function of a door opener. The combination with a controlled electromechanical lock is particularly advantageous for this application.

It is particularly advantageous that the handle is designed as a push rod or handle bar. Push bars and handle bars are used in escape door locks. Pressure rods are guided in a frame or assembly unit so that they can be displaced linearly in the direction of escape. Handlebars are mounted between two swing arms or rotating brackets and moved in the direction of alignment or in a downward arc.

According to an advantageous development, the handle is attached to the mandrel and the mandrel is divided into two parts, a mandrel section on the lock side and a mandrel section on the handle side, and the energy accumulator is arranged between the two mandrel sections. There is preferably a split follower for receiving the lock-side and the handle-side mandrel section.

The invention can advantageously be designed as a burglar-proof, electromechanically controlled lock device in that a further handle is arranged on the lock-side mandrel section, that the lock-side mandrel section is also divided in two and provided with an electrically controllable clutch in between, and that the clutch can preferably be actuated by means of working current is.

Conventional locks can advantageously be retrofitted with a mandrel which is divided into two mandrel sections and in which the force accumulator is arranged between the two mandrel sections.

Furthermore, conventional locks can be retrofitted by arranging a split follower and a spring accumulator in the lock fitting, which is operatively connected to one part of the follower in such a way that the spring accumulator is tensioned with a rotary movement of the handle part, and which is connected to the other part of the Handle follower is operatively connected in such a way that it is acted upon by the spring accumulator when the lock is released.

A lock fitting can preferably be developed in that part of the follower is connected to a driving gear for loading the energy store, and that the other part is connected to a gear outgoing from the energy store, with the lock preferably also being arranged in the lock fitting.

Fig. 1

eine Innenansicht einer Fluchttür in einer Teilschnitt-Darstellung;

Fig. 2

eine erste Ausführungsform einer Entriegelungsvorrichtung in einer Grundstellung;

Fig. 3

die Entriegelungsvorrichtung gemäß Fig. 2 in einer Zwischenposition;

Fig. 4

die Entriegelungsvorrichtung gemäß Fig. 3 in einer Position "Freigabe";

Fig. 5

eine zweite Ausführungsform der Entriegelungsvorrichtung in einer Explosionsdarstellung;

Fig. 6

eine Innenansicht einer Fluchttür;

Fig. 7

eine dritte Ausführungsform in einer teilgeschnittenen Darstellung; und

Fig. 8

eine vierte Ausführungsform in einer teilgeschnittenen Darstellung.

The invention is described in more detail below with reference to two exemplary embodiments illustrated in the drawings. They show schematically:

1

an interior view of an escape door in a partial sectional view;

2

a first embodiment of an unlocking device in a basic position;

3

the unlocking device according to 2 in an intermediate position;

4

the unlocking device according to 3 in a "release"position;

figure 5

a second embodiment of the unlocking device in an exploded view;

6

an interior view of an escape door;

7

a third embodiment in a partially sectional view; and

8

a fourth embodiment in a partially sectional representation.

According to 1 An escape door has a door leaf 10 with an electrically controlled door lock device 11, which includes a lock 9 in the door leaf 10, a handle 12 designed as a pawl and a lock fitting 13, which are arranged on the inside of the door leaf 10 as seen in the direction of escape. A locking bolt extended into a door frame 5 is denoted by 6 . The door lock device 11 also includes one in the Figures 2 to 5 illustrated unlocking device 7 or 7 ′, which works according to the closed-circuit principle and which is functionally arranged between the handle 12 and the lock 9 within a lock fitting 13 . The partial section illustrates that in the door leaf 10 behind the lock fitting 13 in a lock case 16 ( 2 ) arranged lock 9, which is actuated via the handle 12. The unlocking device 7, 7' is concealed as a separate unit behind the lock fitting 13. A lock cylinder inserted into the lock 9 is denoted by 3.

In principle, the lock 9 can be designed as a conventional escape door lock that can only be opened from the outside with a key. Since the unlocking device 7 or 7′ is connected upstream of the lock 9 on the inside, with the power flow from the inside handle 12 to the lock 9 being electrically controlled, the lock 9 can also be used as a security lock known per se with a split follower and one with working current be designed controlled clutch, which allows access from the outside. The door can therefore also--as shown by way of example--be provided with a multi-point locking system, which consists in the lock 9 being connected via two linkages 8 to two locking cases 4, each of which has an additional locking bolt 6'. Instead of a locking bolt or multiple locking bolts, there can also be latches.

In addition to the door leaf 10, an emergency button 14 and a key switch 15 for authorized arming of the door lock device 11 are arranged on the wall side. In a basic position, in which the door is closed, the door lock device 11 is locked electromechanically, so that pressing down the handle 12 does not release the door lock device 11 and the door cannot be opened. Only when the emergency button 14 has been pressed or the key switch 15 has been actuated by an authorized operator is the lock released and the lock 9 and the door released for opening.

The representations according to Figures 2, 3 and 4 illustrate a first unlocking device 7 close to the lock in the view of FIG 1 , wherein the lock fitting 13 and the handle 12 are removed, so that a top view of the side wall of a door lock case 16 can be seen. The unlocking device 7 can be designed as a unit that can be assembled independently and is arranged inside the lock fitting, or it can be designed as an integral part of the lock fitting 13 .

A two-part mandrel 17 designed as a square is led out of the lock case 16 . The handle is attached to the free end of the mandrel 17 protruding from the plane of the drawing, but in Figures 2, 3 and 4 not shown to keep the drawing clear. The mandrel 17 has a mandrel section 17a on the handle side and a mandrel section 17b on the lock side, which are shown here with differently sized rectangular cross sections for easier differentiation. The lock-side mandrel section 17b is mounted in the lock case 16 in a known manner in a conventional follower or, in the case of a security lock, with a conventional divided follower (not shown), via which the locking bolts 6, 6' ( 1 ) can be closed in a known manner by rotating about the longitudinal axis to open the door.

The two mandrel sections 17a, 17b are mounted at their facing ends in a two-part further follower 18, the mandrel section 17b on the lock side coming to rest in a mandrel 18a on the lock side and the mandrel section 17a on the handle side in a nut 18a on the handle side. The nut 18a, 18b on the lock side and on the handle side are again shown in different sizes for better differentiation. The direct flow of force from the handle 12 ( 1 ) on the lock-side mandrel section 17b and thus on the lock 9 is interrupted.

As will be explained in detail below, the handle 12 is followed by a mechanical force accumulator 21 which stores a force applied to the handle 12 . On the output side, the energy accumulator 21 is operatively connected to the lock-side mandrel section 17b in such a way that the stored force can be converted into a torque that acts on the lock-side mandrel section 17b. That Torque generates a rotation of the lock-side mandrel section 17b and thus a backward closing of the locking bolts 6, 6' ( 1 ).

A handle-side and a lock-side gear 20a, 20b is arranged on the two mandrel sections 17a, 17b, which in the present example is designed as a handle-side adjusting lever 19a or as a lock-side adjusting lever 19b and is non-rotatably connected to the respective mandrel sections 17a, 17b. The two adjusting levers 19a, 19b are connected via the force accumulator 21. The energy accumulator 21 is designed as a spring accumulator, here as a tension spring 21a. A spacer 38 for the handle-side adjusting lever 19a is formed on the lock-side adjusting lever 19b, the function of which is explained in the description of FIG 4 is explained.

There is also an electromagnetic lock 22 with an electromagnet 23 and an armature 24 which, together with a locking lever 25, forms a two-armed pawl. The lock 22 acts as a holding brake for the locking lever 19b. It controls the locking lever 19b as a turnstile. She prevents him in a basic position, which in 1 is shown, as well as in the case of willful, unauthorized operation, as in 3 shown at a deflection. If the locking bolts 6, 6' may be closed in an emergency or in the case of authorized lock actuation, the lock 22 releases the adjusting lever 19b on the lock side, which is in a release position according to FIG 4 is illustrated. The electrically controlled lock 22 of the door lock device 11 is thus in the power flow between the handle 12 and the lock-side mandrel section 17b. In the case of an escape door, the lock 22 works according to the closed-circuit principle, ie when energized, the armature 24 is attracted and the locking lever 25 is in the locked position. The lock enters this quiescent current position Figures 2 and 3 a.

In the basic position of the door lock device according to 1 and 2 the arrangement consisting of the handle 12, the nut 18a on the handle side, the mandrel section 17a on the handle side and the adjusting lever 19a on the handle side is not deflected; the handle 12 is aligned horizontally. The arrangement consisting of the nut 18b on the lock side, the mandrel section 17b on the lock side and the adjusting lever 19b on the lock side is also not deflected; the lock 9 is not operated. Their positions are stable because the tension spring 21a connecting them exerts a predetermined tensile force on the two adjusting levers 19a, 19b, the adjusting lever 19a on the handle side being pressed against a stop 26 on the lock case 16 and the adjusting lever 19b on the lock side being pressed against the locking lever 25. The basic position is further illustrated by the fact that the two mandrel sections 17a, 17b are not angularly offset from one another and their side faces are aligned in parallel.

If the handle 12 is depressed clockwise, it takes the associated handle-side adjusting lever 19a with it. Since the adjusting lever 19b on the lock side is held in its position by the locking lever 25, the tension spring 21a is stretched and the movement takes place against the force of the tension spring 21a. As 3 As illustrated, in this position the sides of the handle-side tang portion 17a and the lock-side tang portion 17b are angularly offset. The tension spring 21a stores the force applied as long as the handle 12 is pressed. If the lock 22 is not released in this situation, the tension spring 21a acts as a return device for the actuating lever 19a on the handle side as soon as the handle 12 is released. After the release, the tension spring 21a pulls the handle 12 back into the basic position with the stored force, the tension spring 21a being relieved. Such actuation of the handle 12 when the lock 22 is locked is typical of misuse of the door lock device 11, which can also be referred to as sabotage. In this case, the tension spring 21a also has the task of providing elastic resistance to the depression of the handle 12 in order to prevent the handle 12 hitting the door lock device 11 hard, which could result in damage.

If, on the other hand, the lock 22 is released after the handle 12 has been depressed to the maximum extent and the force applied has been stored in the tension spring 21a by the current being switched off by depressing the emergency button 14 ( 1 ) is switched off, the armature 24 is released and pivoted clockwise together with the locking lever 25 by a tension spring 37. whereby the lock-side adjusting lever 19b is released. The force stored in the tension spring 21a then acts on the adjusting lever 19b on the lock side and lets it follow the adjusting lever 19a on the handle side in a clockwise direction until it reaches the release position at the stop 26, which is shown in 4 is shown. The stored force of the tension spring 21a generates a torque on the lock-side mandrel section 17b via the lock-side adjusting lever 19b, which causes the lock-side mandrel section 17b to rotate in the clockwise direction. With this rotation, the locking bolts 6, 6' of the lock 9 ( 1 ) closed and the door can be opened.

It can thus be seen that the force exerted by the handle 12 is not applied directly to the mandrel section 17b on the lock side, but only indirectly via the tension spring 21a with a predetermined spring tension.

If the handle 12 is now released, the handle-side adjusting lever 19a is pulled counterclockwise by a return spring 27 into the basic position. Via the spacer 38 it takes the adjusting lever 19b on the lock side into its starting position. In order to return the door lock device to the basic position, the lock 22 is activated and the locking bolts 6, 6' ( 1 ) are excluded again in a known way.

In the second embodiment of an unlocking device 7 'according to figure 5 who preferred can be arranged within a lock fitting, the frictional connection from the handle 12 to the lock-side mandrel section 17b takes place via the handle-side mandrel section 17a, a driving handle-side gear 20a', an energy accumulator 21', which is designed as a package of two parallel compression springs 21b, and via an outgoing lock-side gear 20b'. The handle-side gear 20a' consists of a handle-side follower 18a', which is provided with a handle-side cam 28a, and a linearly displaceable handle-side push rod 34a, which engages the handle-side cam 28a via a handle-side groove 30a. The push rod 34a on the handle side is connected to a tensioning device of the force accumulator 21'. It consists of a block 31 on the input side and a block 36 on the output side, between which the compression springs 21b are arranged. The block 31 on the input side is rigidly connected to a connecting web 33 via two spring tension rods 32 . The two compression springs 21b are mounted on the spring clamping rods 32 . The block 36 on the output side is slidably guided on the two spring clamping rods 32 . The connecting web 33 is firmly connected to the push rod 34a on the handle side. If the connecting web 33 is moved away from the block 36 on the output side, the block 31 on the input side is moved towards the block 36 on the output side against the spring force.

The lock-side gear 20b' consists of a linearly movable lock-side push rod 34b which is provided with a lock-side groove 30b, a lock-side nut 18b' which has a lock-side cam 28b which engages with the lock-side groove 30b in the lock-side push rod 34b , and a rocker 35 between the push rod 34b on the lock side and the force accumulator 21'. The output-side block 36 is supported against a first arm 35b of the rocker 35. As shown in FIG. The second arm 35c engages with a slot 29 of the push rod 34b on the lock side via a pin 35d. The rocker 35, which has a stationary pivot axis 35a, is connected to the output of the energy accumulator 21', i.e. to the block 36 on the output side. The push rod 34b on the lock side is provided with a pin 38 which interacts with an electromechanical lock 22' in such a way that the push rod 34b on the lock side is blocked in a basic position. In order to keep the figure clear, only the locking lever 25' of the lock 22' is shown. The lock 22' acts as a holding brake, with the locking lever 25' holding the push rod 34b on the lock side in the basic position when the current is closed. In the basic position, the part of the device on the lock side is therefore not subjected to a preload. When the locking lever 25' is released, the push rod can move upwards depending on the force stored in the force accumulator 21.

As long as the push rod 34b on the lock side is held in the basic position by the locking lever 25, the rocker 35 is also blocked and also holds the block 36 on the output side in the basic position against a spring tension which is applied to the compression springs 21b via the block 31 on the input side. Even with such a preload on the handle 12, the preload is not transferred to the part of the device on the lock side.

When the handle 12 is pushed clockwise, the handle-side mandrel portion 17a causes a corresponding rotation of the handle-side nut 18a, with the handle-side cam 28a deflecting the handle-side push rod 34a downward. As a result, the connecting web 33 is pulled down together with the tie rods 32 and the input-side block 31, with the compression springs 21b being compressed against the output-side block 36. A torque applied via the handle 12 to the mandrel section 17b on the handle side thus causes the spring accumulator 21' to be acted upon and the applied force or applied torque to be stored. The force is stored until the lock 22' is released. As long as the lock 22' is not disengaged, the resistance encountered in depressing the handle 12 serves to protect the device from vandalism. No additional protection against vandalism on the handle 12 is therefore required.

If the lock 22' is released when the handle 12 is depressed, either by pressing an emergency button (see 1 ) is actuated or released by an authorized person, the stored power is released. The compression springs 21b press the output-side block 36 down onto the first arm 35b of the rocker 35, the second arm 35c pulling the lock-side push rod 34b upwards via the pin 35d. As a result, the cam 28b on the lock side is rotated clockwise via the groove 30b on the lock side together with the nut 18b on the lock side, which takes the mandrel section 17b on the lock side and causes it to rotate clockwise, which in turn exerts a torque on the mandrel section 17b on the lock side. This causes the locking bolts 6, 6' to close back ( 1 ) and a release of the door.

If the handle 12 is then released, the handle-side pressure rod 34a is pushed upwards by the handle-side cam 30a, the input-side block 31 moves upwards together with the connecting web 33, the pressure springs 21b are relieved, they relax, and the output-side block 36 and the block 31 on the input side assume the basic position, with the handle 12 also being returned counterclockwise to its basic position. The energy accumulator 21' thus acts as a restoring device for the handle 12. The lock-side push rod 34b is moved downwards into the basic position by rotating the lock-side mandrel 17b counterclockwise via the lock-side nut 18b. The rotation of the lock-side The counterclockwise arbor 17b is provided by a latch side spring (not shown) conventionally provided in a latch to return the handle 12.

If the handle-side and the lock-side pressure rods 34a, 34b as in the example of FIG figure 5 are performed in parallel, it is particularly well possible to produce a compact device as a unit within a lock case or as a separate unit within the fitting 13 ( 1 ) can be arranged. With such a compact arrangement, it is also particularly easy to easily retrofit conventional locks by using the lock-side mandrel section 17b as a mandrel for the conventional lock or by guiding the mandrel of the conventional lock as a lock-side mandrel section 17b in the lock-side nut 18b.

According to the third embodiment 6 and 7 is a door lock device 11 'for an escape door, in which the handle is designed as a push rod 40. Push bars are usually arranged horizontally on the door leaf 41. They are often used on escape doors, where they are located on the inside of the door leaf 41, where they can be moved in the direction of escape. When pressure is applied against the push rod 40 according to arrow 39 in the direction of the door leaf 41, the push rod 40 is moved towards the door leaf 41. This movement is transmitted to a mandrel 42 of an unlocking device 43 which is arranged on the door panel 41 below the push rod 40 . In the embodiment of 7 the unlocking device 43 is designed as a separately mountable unit with a housing 53 .

A lock case 50 with a conventional door lock is located below the unlocking device 43 in the door leaf 41 , the door lock follower 52 of which engages with the unlocking device 43 . The door lock differs from the versions according to Figures 2 to 5 aligned horizontally, ie a lock cylinder 51 is located laterally next to a door lock follower 52. A conventional vertical arrangement of the door lock with the lock cylinder below the door lock follower is alternatively also possible.

The mandrel 42 of the unlocking device 43 is divided into two parts, a mandrel section 42a on the handle side and a mandrel section 42b on the lock side. The engagement of the unlocking device 43 with the door lock follower 52 takes place via the lock-side mandrel section 42b. The mandrel section 42a on the handle side is in engagement with the follower 49 on the mounting plate 44. Otherwise, the mechanism of the unlocking device 43 corresponds to the mechanism that is based on the statements according to FIG Figures 2, 3 and 4 or the figure 5 was described as an example, and which in 7 is covered by the housing 53.

Accordingly, it has an energy accumulator, a two-part handle follower, which accommodates the two mandrel sections 42a, 42b in a lock-side or handle-side handle follower, a handle-side and a lock-side gear and an electromagnetic lock.

To carry out a handle movement, the push rod 40 is slidably mounted on a mounting plate 44 on the door leaf side, which runs parallel to the door leaf 41 . The linear movement of the push rod 40 is converted into a pivoting movement of a follower 49 via a deflection gear, which is arranged in the mounting plate 44 and which acts as follows. A movement of the push rod 40 is deflected via a two-armed deflection lever 45 on the mounting plate 44, the pivot axis of which is aligned parallel to the mounting plate 44 and transverse to the longitudinal direction of the push rod 40 and transmitted to a slide 46, which is parallel to the mounting plate 44 and on the mounting plate 44 is guided, and thereby converted into a movement in the longitudinal direction of the push rod 40. The slider 46 is connected to a swivel arm 48 of a follower 49 via a hinged lever 47 . This follower 49 receives the mandrel section 42a of the unlocking device 43 on the handle side. The push rod 40, the mounting plate 44, the deflection lever 45, the slide 46, the lever 47 and the follower 49 are designed as an independent assembly unit 54 which is mounted on the unlocking device 43 or its housing 53.

When the push rod 40 is pressed, the arm 45a of the reversing lever 45 connected to the push rod 40 is moved downwards and the arm 45b connected to the slide 46 moves the slide 46 along the mounting plate 44. This translational movement leads via the lever 47 and the swivel arm 48 to a rotation of the handle-side mandrel portion 42a. The effect is the same as that described above in connection with the actuation of the handle in accordance with the examples Figures 2, 3 and 4 or the figure 5 was described, ie the energy store in the unlocking device 43 is acted upon. If the lock is released with the push rod 40 depressed, the applied and stored force is released and the lock-side follower with the lock-side mandrel portion 42b is rotated. As a result, the door lock follower 52 is rotated and the door lock in the lock case 50 causes the door to be released. If the lock is not released, the lift mechanism only serves as protection against vandalism, as described above.

The lock case 50, the housing 53, the unlocking device 43 and the assembly unit 55 are arranged relative to one another in such a way that access to the lock cylinder 51 is not covered by the housing 53 and the assembly unit 55. The lock in the lock case 50 can therefore be freely operated with a key.

The embodiment according to 8 differs from the execution according to 7 thereby, that the unlocking device is designed integrally with that assembly unit 55 which has the push rod 40 as a handle. It also differs in the design of the deflection gear between the push rod 40 and the follower 49 on the mounting plate 44 in that the deflection gear is part of an unlocking device 56 according to the invention, with which the force applied to the push rod 40 is stored and released after authorized release to the rotating mandrel 42 is used.

The mandrel 42 connects the follower 49 on the mounting plate 44 with the door lock follower 52.

Unlike the execution according to 7 the two-armed lever 45 is not directly connected to the slide 46' on the mounting plate 44. Between the arm 45b' of the two-armed lever 45, which is assigned to the slide 46', and the slide 46', there is a tension spring designed as an energy store 21". The flow of force from the push rod 40 to the slide 46' thus takes place indirectly via the energy store 21". The slider 46' is held in a basic position by an electromechanical lock 22, which corresponds to a "locked" position of the door lock follower 52 or the lock.

The lock 22 has a locking lever 25 which is blocked or released electromagnetically and which cooperates with a pin 38 on the slider 46'.

When the push rod 40 is depressed, the lever 45 is deflected and the tension spring is loaded when the catch 22 blocks the slide 46'. The force applied is stored in the tension spring as long as the push rod 40 is pressed. If the lock 22 is released when the push rod 40 is depressed, the tension spring transfers the stored force to the slide 46', which is thereby displaced from the basic position and the lever 47 and the swivel arm 48 cause the follower 49 to rotate on the Mounting plate 44 causes. The lock is thereby unlocked via the mandrel 42 .

The push rod 40 is then returned to its starting position by means of a return spring 27 acting on the two-armed lever 45, with the slide 46' being pulled back into its basic position by the arm 45b' and the tension spring 21''.

Claims (19)

1. Door having a door leaf and door lock device, for example a door having an escape door function, having a lock (9) in the door leaf (10), having an electromechanical blocking means (22), having a handle (12) for actuating the lock (9), and having a spindle (17) for retracting a latch or a locking bolt (6, 6') by means of a rotational movement,

   wherein
   the handle (12) is followed by a force accumulator (21, 21', 21"), which accumulates a force which is applied to the handle (12),

   characterised in that

   the force accumulator (21, 21', 21") is operatively connected on the output side to the spindle (17, 17b) in such a way that the accumulated force is converted into a torque acting on the spindle (17, 17b) for retracting the latch or the locking bolt (6, 6') by means of a rotational movement, and the force accumulator (21, 21', 21") is followed by the blocking means (22, 22').
2. Door according to claim 1,
   characterised in that
   the blocking means (22, 22') is formed as a holding brake.
3. Door according to claim 1 or 2,
   characterised in that
   the blocking means (22, 22') is formed as a rotation blocking means which acts on the spindle (17, 17b).
4. Door according to one of the preceding claims,
   characterised in that
   the force accumulator (21, 21', 21") is formed as a reset means for the handle (12) when the blocking means (22, 22') is not released.
5. Door according to one of the preceding claims,
   characterised in that
   the force accumulator (21, 21', 21") is relieved when the handle (12) is reset.
6. Door according to one of the preceding claims,
   characterised in that
   the force accumulator (21, 21', 21") is charged with a predetermined preload.
7. Door according to one of the preceding claims,
   characterised in that
   the force accumulator (21, 21', 21") is formed as a spring accumulator.
8. Door according to one of the preceding claims,
   characterised in that
   a handle side gear (20a, 20a') is arranged between the handle (12) and the force accumulator (21, 21', 21"), the force accumulator (21, 21', 21") being charged via said gear.
9. Door according to one of the preceding claims,
   characterised in that
   a lock side gear (20b, 20b') is arranged between the force accumulator (21, 21') and the spindle (17, 17b), said gear (20b, 20b') being charged with the force accumulator (21, 21', 21").
10. Door according to claim 9,
    characterised in that
    the blocking means (22, 22') is operably connected to the lock side gear (20b, 20b').
11. Door according to one of the preceding claims,
    characterised in that
    the blocking means (22, 22') is formed as a rest current blocking means.
12. Door according to one of the preceding claims,
    characterised in that
    the blocking means is operatively connected to an emergency button (14) or to a control centre.
13. Door according to one of the preceding claims,
    characterised in that
    the handle (12) is attached to the spindle (17, 17a), the spindle (17) is bisected into a lock side spindle portion (17b) and a handle side spindle portion (17a), and the force accumulator (21, 21', 21") is arranged between the two spindle portions (17a, 17b).
14. Door according to claim 13,
    characterised in that
    a split follower (18, 18a, 18b) for receiving the lock side and the handle side spindle (17a, 17b) is present.
15. Door according to one of the preceding claims,
    characterised in that
    a further handle is arranged on the lock side spindle portion (17b) of the spindle (17), the lock side spindle portion (17b) of the spindle (17) is bisected and is provided with an electrically controllable coupling therebetween, and the coupling can preferably be activated by means of a working current.
16. Door according to claim 15,
    characterised in that
    the split follower (18, 18a, 18b) is arranged together with the force accumulator (21, 21', 21") and the blocking means (22, 22') inside a lock housing or is arranged outside the lock housing but inside a door leaf.
17. Door according to claim 15,
    characterised in that
    conventional locks can be retrofitted by the lock side spindle portion (17b) also being used as a spindle for the conventional lock or by the spindle of the conventional lock being guided in the lock side nut (18b) as a lock side spindle portion (17b).
18. Method for opening a door lock device according to one of claims 1 to 17,
    characterised in that
    the force fit is guided indirectly by a handle via a force accumulator onto a spindle of the door lock device, the accumulated force is used for rotating the spindle, and the accumulated force is used depending on a blocking means.
19. Method according to claim 18,
    characterised in that
    the spindle is relieved in a resting state, and the accumulated force only then charges the spindle when the blocking means is released.

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