ES2424824A2 - Electric goalkeeper with security bolt (Machine-translation by Google Translate, not legally binding) - Google Patents

Abstract

An electrical intercom is described. The electric doorman comprises a door latch (2) and an electrically operable latch device with an electric actuator and a bolt member controllable by the actuator (4). The electrically actuable bolt device has a safety latch (8) which cooperates with the bolt-action controllable member (4) to lock the bolt-action controllable member (4) in its position released by the actuator by means of the latch security (8). This locking can be lifted by the action of the door latch (2) or the changer (6) exerted on the safety latch (8), when the door leaf moves out of the closed position and thereby moves respectively the door latch (2) or the changer (6) forcefully. It is then described that the security bolt (8) can be optionally connected and disconnected. The safety latch (8) is configured as a leaf spring, which is made as a single arm lever, where the lever support can be positioned differently for connection and disconnection. (Machine-translation by Google Translate, not legally binding)

Description

ELECTRIC PORTER WITH SAFETY LOCK

The present invention relates to an electric door intercom for a door with a door leaf movably mounted inside or in a door frame. The electric doorman comprises an electrically operated door opener latch and an electrically operable bolt device with an electric actor and a bolt member
controllable by the actor, in the following denominated as member of bolt controllable by actor. The electric actor can be, for example, an electric coil and the actor controllable bolt member can be induced, for example, a rotating armature. The actor-controllable bolt member collaborates directly with the door opener's latch or indirectly through a changer configured as a lever. The bolt device can be actuated in such a way that in a first actuation position it blocks the doorman's latch under the influence of the bolt member controllable by actor, to fix the door leaf in the closed position, and in a second position of drive releases the doorman's latch, to lift the door leaf lock. Some definitions of terms will first be given below: the term "electric doorman" should be understood in the present patent application as "electrically actionable doorman". This is an "electrically operated locking device for a door". The locking device has an electrically operated locking device and a doorman latch. The bolt member on the exit side of the bolt device acts directly or indirectly with the doorman latch and brings the door latch to a locked position and a release position. Release position means that the lock is raised and the door can be opened. Under an electric door entry, it is necessary to understand not only the opening device of a door, but also the opening device of a gate, a window or other closing installation with a mobile leaf or leaf. That is to say that the term "door" the present application also refers to a gate, a window and / or some other closing installation with a leaf or mobile leaf. However, the term "intercom" or "intercom" does not mean that the use of a device to drive the opening movement of the door must be provided; however, such a device can be provided as an additional installation. The term "sheet" or "door leaf" in the present application refers to a rotating blade and / or a sliding sheet formed by one or more such sheets. It can also be a comparable non-passable closure device in the field of construction or furniture, such as for example a smoke protection cover. The term "lock latch" refers to the present application to the latch that collaborates with the doorman's latch. It can be installed rigidly or elasticly. It may be arranged, although not necessarily, in connection with a lock. With regard to the prior art: Electric gatekeepers of the type initially mentioned are known, for example, from DE 42 29 239 C1. The actor is an electric coil and the bolt member controlled by the actor is configured as a rotary armature. Such electric gatekeepers may be configured as electric work current rakers or as standby electric gatekeepers. In the case of the work current electric door entry system, by means of the power supply to the electric coil, the armature is turned to the release position. In the case of the standby electric gatekeeper, this happens the other way around, that is to say that the armature is turned to the release position by interrupting the power supply. From the practice, special embodiments of electric work porters are known, in which the armature, after it has been brought to the release position by the application of current to the electric coil, is fixed in the position of release by means of a security lock. Here the changer configured as a lever is elastically loaded by a pressure piece and positioned in the release position until it travels through the door. The pressure piece that generally extends centrally through the doorman latch is actuated here by the lock latch in the closed position of the door. In these electric porters, the door opener's latch has a passage opening through which the pressure pin that collaborates with the lock latch passes. With this pressure pin actuated by the lock latch, a relatively complicated constructive design of the electric doorman and in particular of the doorman latch with the passage opening is obtained. Other disadvantages derive from the fact that the pressure pin can suffer external damage due to contamination or manipulation, so that malfunctions can occur.

A special electric doorman, in which the armature collaborates with a safety lock, to lock the armature into its respective operating position, is known from DE 28 53 027 A 1. The armature is configured as a two-arm lever. The actor consists of two electric coils. To bring the armature to the release position, the first electric coil is supplied with current, acting on the first lever arm, such that the armature shown as a two-arm lever rotates to the first operating position. To bring the armature to the locked position, the second electric coil is supplied with current, attracting the second lever arm of the armature, such that the armature rotates to the locked position. In order to fix the two-arm armature in the respective locking positions, a safety lever is provided with a crossbow lever, which is formed and arranged in such a way that the crossbow lever grabs behind an interlocked end of the armature in the release position on the front side, while in the locked position the grip takes place on the rear side. The switching between the two drive positions of the electric door entry system requires a relatively complex structure with two electric coils that interact with the different assigned lever arms of the two-arm armature. The objective of the present invention is to provide an electric doorman with a bolt member locked in the release position, which has a simple construction and guarantees a high degree of operational safety. This objective is met by the invention according to the object of the claim.

1. With this, the invention provides a door operator that can be operated, preferably electric, for a door with a door leaf movably installed in a door frame. The electric doorman comprises a door latch installed in a mobile way and an electrically operable bolt device with an electric actor and a bolt member controllable by the actor, in the following referred to as a bolt member controllable by actor. The actor controllable bolt member collaborates directly with the doorman latch or indirectly through a changer configured as a lever. The bolt device can be operated in such a way that in a first operating position the doorman latch locks the door under the influence of the bolt member controllable by actor, to fix the door leaf in the closed position, while in a Second drive position releases the doorman's latch, to release the door leaf lock. The essential thing in the electric doorman according to the invention is that the electrically actuated bolt device has a safety bolt that is arranged in collaboration with the bolt member controllable by actor and with the doorman or changer latch, respectively, of such that in the second actuation position of the electrically operated bolt device, the actor controllable bolt member can be locked in its release position by the safety bolt and this interlocking can be lifted by the action of the doorman latch or of the changer, respectively, on the safety bolt, when the door leaf moves out of the closed position and the doorman or the changer latch necessarily moves. The electric doorman according to the invention therefore provides that the doorman latch and / or, if present, the electric door latch changer safety bolt actions to release the lock of the controllable bolt member by actor. In contrast to the state of the art initially mentioned and known in the practice, in the present invention a drive element that passes through the doorman latch is not required to unlock the bolt member. In a manner different from that described in DE 28 53 027 A 1, the actor can also be simply configured as a single electric coil and the bolt member controllable by actor as any armature. Preferably, the armature may be configured as a single arm lever, preferably as a single arm lever loaded by a spring. In the solution according to the present invention, with the blockage produced by the safety bolt, the transit through the door can be allowed only once, while in document DE 28 53 027 A 1 by means of the corresponding drive only one permanent lock or permanent unlock. In the solution according to the invention it is also essential that the safety lock can be optionally connected and disconnected. To this end, it is provided that the safety bolt can be brought to a connected position, in which its effective segment can be butted with the bolt member controllable by actor, and that the safety bolt can be brought to a disconnected position, in which its effective segment cannot be butted with the bolt member controllable by actor. In the constructive aspect, the ability to connect and disconnect the safety bolt can be resolved by causing the safety bolt and / or the effective segment of the safety bolt in the connected position and in the disconnected position to be positioned at a different distance in relationship to the bolt member controllable by actor. It can also be provided that the safety bolt is configured as a lever device, whose lever support and / or whose free lever end in the connected position and in the disconnected position are positioned differently in relation to the controllable bolt member by actor. The ability to connect and disconnect the safety bolt in the exemplary embodiments, in which the safety bolt is configured as a lever device, can preferably be realized by the fact that the safety bolt has a support segment, whose position inside or in the frame or in the wall of the door of the electric doorman or the changing table can be adjusted respectively to the connected position and the disconnected position. The term "ability to connect and disconnect the safety lock" in preferred embodiments, in particular in the embodiments in which the safety lock is configured as a toggle device, can be understood and carried out in such a way that it is possible to adjust the actuation force of the safety bolt exerted on the bolt member controllable by actor. In embodiments, in which the safety lock is configured as a lever device, the transmission ratio of the lever device can be adjustable, where in the final position of the adjustment in the direction of reduction of the force acting the device of lever may be disconnected; The force of the safety bolt acting on the bolt member controllable by actor in this position is minimal or zero. Accordingly, particularly preferred embodiments provide that the electric actor is configured as an electric coil and that the actor controllable bolt member is configured as induced that collaborates with the electric coil. In other embodiments it may be provided that the electric actor is configured as an electric motor, whose output is coupled with the bolt member controllable by actor or collaborates with the bolt member controllable by the electric motor.

Particularly preferred embodiments provide that the electric door intercom is configured as a work current electric door intercom, where the electrically operable bolt device in the first operating position, in which the doorman's latch is locked under the action of the bolt member actor-controllable, it is free of current, while in the second actuation position, in which the doorman's latch is unlocked, it is under current.

This means that by applying current to the actor, the bolt member is moved to its release position. When the actor is configured, for example, as an electric coil and the bolt member is configured as a rotating armature, the rotary armature can be turned to its release position by the action of the current-fed coil. The safety bolt can then block the armature in this position, regardless of whether the electric coil is still powered, until the changer or indirectly the doorman's latch actuates the safety bolt to unlock the armature in its release position. . After being released from the action of the safety bolt, the armature can turn back to its initial position, so that the intercom function of the door entry system is activated again. Particularly preferred embodiments provide that the safety lock is configured as an elastic lever and / or as a lever loaded with a separate spring. In additional preferred embodiments it may be provided that the safety lock is configured as a single-arm lever. The safety bolt configured as a lever can be operated simply by the changer or by the doorman latch, due to the fact that the changing table or the doorman latch is moved when it is moved through the door and then is butt the safety lock to rotate it out of its blocking position and thereby releasing the blocking member of the blocking device that collaborates with the actor. In particularly preferred embodiments, it is provided that the safety bolt is configured as a leaf spring and / or has at least one segment configured as a leaf spring. Preferably, the safety bolt is configured as a spring-loaded spring lever, which is installed in the wall of the door of the electrical door and can be turned as a single-arm lever around its installation site. If the blocking member that collaborates with the actor is moved by the actor, the blocking member slides along the crossbow spring and at the end of the path meshes on the front side of the free end of the leaf spring, in such a way that the actor controllable blocking member cannot return to its initial position. If the intercom is actuated by the rotation of the intercom latch when it travels through the door, the intercom latch is unlocked or, if present, the changer unlocks the locking member by the elastic deformation of the leaf spring, such so that the locking member can to the initial position after it has been passed through the door. With this, the function of the intercom lock is activated again.

Particularly advantageous embodiments from the technical point of view of manufacturing, which also have a high operational safety, is obtained if the leaf spring is made of plastic material. In preferred embodiments, it may be provided that the safety bolt is configured as a construction unit composed of a single piece or several pieces of plastic material. Particularly in the embodiments that have a safety bolt with a leaf spring made of plastic material, it can be provided that the safety bolt has a clip and / or gear segment, with which the safety bolt is installed inside or in the frame and / or the wall of the door of the electric porter

or the changer. Preferably, in this case a complementary segment to the clip and / or gear segment can be provided in the frame and / or in the wall of the box and / or in the changing table, in order to support and / or fix the bolt there. of security. In other preferred embodiments, it may be provided that at least two segments complementary to the clip and / or gear segment are provided on the frame and / or on the wall of the electric door box and / or on the changing table, in order to support and / or fix the safety bolt optionally in one or another segment. In these embodiments it is possible to have the safety lock in different positions, preferably to bring it to a connected position or a disconnected position. In particularly advantageous embodiments from the constructive point of view, it is provided that the safety bolt collaborates directly with the locking member controllable by actor, preferably being mutually abutment. However, other embodiments are also possible, in which the security lock only collaborates with the locking member indirectly. A particularly simple construction that at the same time has a high degree of operational safety is obtained with embodiments where the safety bolt has a free spring end that interacts with the actor-controllable locking member. The safety lock is preferably configured as a single arm lever, in particular an elastic lever. In the case of a direct collaboration, the free end of the safety bolt is fully butted with the bolt member controllable by actor. The actor controllable bolt member in preferred embodiments is, as previously stated, likewise a lever, preferably a single arm lever. The actor can be an electric coil, with which the bolt member configured as a lever collaborates

as induced rotating.

A particularly safe operation lock in the release position is obtained in embodiments in which it is envisioned that the actor controllable bolt member is abutting the safety bolt in its release position locked by the safety bolt. In such embodiments it may be provided that in the butt position the bolt member controllable by the actor grasps the safety bolt from behind and / or is engaged with the safety bolt. The grip or hitch can be performed with a particularly safe operation if the safety bolt is configured as a leaf spring, preferably as a leaf spring lever. In order to release the actor controllable bolt member from its release position locked by the security bolt, the doorman latch acts directly or indirectly on the safety bolt. Indirect operation of the doorman's latch takes place by means of the interleaved changing table, which can preferably be configured as a single-arm or two-arm lever. In preferred embodiments with a changer, the doorman latch acts directly on the changer, and the changer preferably acts directly on the safety bolt, in order to carry out the release of the controllable bolt member per actor from the release position. In preferred embodiments it may be provided that a free end of the changer or a free end of the doorman's latch collaborates directly or indirectly with the safety bolt, in order to lift the lock of the bolt member controllable by actor from the release position. In preferred embodiments, the free end of the exchanger acts directly by contact on the safety bolt, to lift the lock of the bolt member. In preferred embodiments, the changer is configured as a single arm lever and the actor controllable bolt member is also configured as a single arm lever, preferably as a single arm rotary armature configured as an electric coil. To ensure a lifting of the lock of the bolt member even with only a small turn of the doorman latch, especially preferred embodiments provide for a spring or other transmission device to be interlocked between the safety lock and the changer or the doorman latch. In order to support and support the bolt lever, in preferred embodiments it may be provided that the bolt lever is installed inside or in a frame and / or a box wall of the electric porter or the changer.

A particularly compact construction is possible with embodiments in which the

The axis of rotation of the changer is arranged parallel to the axis of rotation of the safety lock configured as a lever. In embodiments which provide that the actor controllable bolt member is preferably configured as a spring loaded bolt lever with a rotation axis, a particularly compact construction is obtained if the axis of rotation of the bolt lever is arranged parallel to the axis of rotation of the safety bolt configured as lever. With regard to the assembly of the door entry system, it can be provided that the door entry system has been mounted on the side of the door frame, so that the doorman latch collaborates with an opposite element arranged on the side of the door leaf. However, it can also be provided that the electric door intercom has been mounted on the side of the door leaf, such that the door latch interacts with an opposite element arranged on the side of the door frame. The opposite element that collaborates with the doorman latch can be configured as an elastic lock latch. It can have a straight contact surface, with which in the closed position of the door it comes into contact with the locked doorman latch when the electric doorman is set to the locked position. The lock bolt has an inclined plane on the opposite side that comes into contact with the doorman's latch during the closing of the door, such that the lock latch retracts elastically and thus passes beyond the doorman's latch, after which it comes out again due to the elastic loading of the spring and in this position it grabs the doorman's latch from behind. An exemplary embodiment will be described below with reference to the figures, in which:

Fig. 1

it is a perspective representation of a first embodiment

of an electric porter in its first drive position (position

lock), where the bolt lever of the bolt device

electric locks the doorman's latch;

Fig. 2

it's a representation in perspective of the embodiment example of the

Fig. 1, but shown in its second drive position (position

release), where the bolt lever of the bolt device

electric

is maintained by the security bolt in its position of

release and the doorman's latch is released like this;

Fig. 3

is a representation in perspective from a second example from

embodiment in the second drive position of Fig. 2;

Figs. 4 to 7 are perspective representations of a third embodiment of an intercom in the different drive positions;

Fig. 8 is a perspective representation of a fourth embodiment of the intercom in the second driving position, as shown for the first embodiment in Fig. 2;

Fig. 9 shows a fragment of a top view of a fifth embodiment, showing only the changer with the bolt member; Y

Fig. 10 is a sectional view in section plane XX of Fig. 9. In the exemplary embodiment shown in figures 1 and 2, it is an electrically operated doorman 1. It has a doorman latch 2 and an electrically operable bolt device. The bolt device in the embodiment shown is formed by an electric coil not shown in the figures and a rotating armature 4 that collaborates with it. The doorman 2 latch in the illustrated embodiment is configured as a rotating latch. It is installed rotatably around an axis of rotation 2a. The rotary armature 4 forms the bolt lever of the electric door lock device. It is configured as a single arm lever. Its axis of rotation 4a is arranged perpendicular to the axis of rotation 2a of the goalkeeper latch

2. Goalkeeper latch 2 collaborates with a reset spring 2f not shown. It may preferably be arranged in the form of a rotating spring around the axis of rotation 2a. Rotary armature 4 collaborates with a reset spring 4f. In the case shown, it is configured as a helical compression spring 4f. Between the rotary armature 4 and the doorman latch 2, in the embodiment shown, a changer 6 is inserted. The changer 6 in the case shown is configured as a single-arm lever. Its axis of rotation 6a is arranged parallel to the axis of rotation 4a of the rotary armature 4. The changer 6 collaborates with a reset spring 6f. In the case shown, it is configured as a helical compression spring 6f. In the exemplary embodiment according to the invention it is essential that the bolt device has a safety bolt 8. This safety bolt 8 in the case shown is configured as an inserted leaf spring. The leaf spring forms a single-arm elastic lever with the axis of rotation 8a in the region of the insertion point 8b. This safety bolt formed by the spring 8 will be referred to in the following description as abbreviated as

leaf spring 8. This leaf spring 8 collaborates with the rotary armature 4 and the changer 6. This collaboration will be described subsequently with reference to Figures 1 and 2. As regards the relative distribution of the leaf spring 8 and the rotary armature 4 in the exemplary embodiment shown, it should be noted that the axis of rotation 8a of the leaf spring 8 is arranged parallel to the axis of rotation 4a of the rotary armature 4. As shown in Figures 1 and 2, the leaf spring 8 and the swivel armature 4 are mutually arranged such that the longitudinal extension of the leaf spring 8 is arranged perpendicular to the longitudinal extension of the wheel armature 4, so that the free end of the leaf spring 8 is disposed in the area of the free end of the rotating armature 4. The free end of the leaf spring 8 is the effective end of the leaf spring 8 that interacts with the ind swiveling means 4. An actuation position is shown in Figure 2 in which the leaf spring 8 keeps the swivel armature 4 locked in a release position. The doorman 2 latch is released in this position, that is, it can rotate around the axis of rotation 2a, specifically against the action of the reset spring 2f. When the goalkeeper 2 latch rotates out of the initial position shown in Figure 2, the changer 6 that is abutting the goalie latch 2 in Figure 2 is turned clockwise, specifically against the action of the spring 6f reset In the drive position illustrated in FIG. 2, the interlocking of the rotating armature 4 by the leaf spring 8 is configured such that the armature 4 is in a contact position engaged with the leaf spring 8. In this position with a butt contact, the free end of the rotating armature 4 grabs the free end of the leaf spring 8 behind it. Here the free end of the rotating armature 4 is in full contact with its lateral surface with the free front surface of the spring leaf spring 8. The rotary armature 4 is loaded by the compression force of the reset spring 4f. This compression force is transmitted to the leaf spring 8 coaxially through its free front surface. The leaf spring 8 is sufficiently rigid in the axial direction to absorb said compression force and thus securely support the swivel armature 4 in the position shown in Fig. 2. The leaf spring 8 thus blocks the induced rotating 4 against a clockwise rotation according to figure 2. The doorman latch 2 is released in this way, so that it can rotate around its

2nd axis Figure 1 shows the other drive position under the action of the reset spring 4f. In this position, the door latch 2 is fixed because the changer 6, which is in full contact with it, is locked by the rotary armature 4 set in the locked position by action of the reset spring 4f . In this drive position illustrated in Fig. 1, the leaf spring 8 does not act in a blocking manner on the rotating armature 4. This means that in contrast to Figure 2, the leaf spring 8 with its free front surface is not in contact with the rotating armature 4. The leaf spring 8 does not act in a blocking manner on the rotary armature 4, but rather rests with its lateral surface on the front surface of the rotary armature 4. From this position, the rotary armature 4 can be turned counterclockwise by the action of the electric coil illustrated in Figure 1. This rotary movement of the rotating armature 4 is produced from the position illustrated in Figure 1, because the electric coil acts on the armature swivel 4 to rotate counterclockwise, specifically against the action of the reset spring 4f. The rotating armature 4 here slides with its free front surface along the longitudinal side of the leaf spring 8, until the driving position illustrated in Figure 2 is reached. In this driving position, as previously described, the rotating armature 4 is locked in a release position by the hitch with the leaf spring 8. The leaf spring 8 is operable by the changer 6. The interlocked position of the wheel armature 4 as a result of the leaf spring 8, as illustrated in Fig. 2, it can be annulled by the action of the changer 6, as described below. When the changer 6 is rotated clockwise from the initial position shown in Fig. 2, with its free end it comes into full contact with the leaf spring 8. It loads the leaf spring 8 of such so that it deforms drastically, specifically rotating correspondingly to a single-arm lever around the axis of rotation 4a clockwise. The free front surface of leaf spring 8 slides here along the side

longitudinal of the rotating state 4, until the free front surface of the leaf spring 8 leaves the butt contact position and then the coupling between the leaf spring 8 and the rotating armature 4 is removed. The leaf spring 8 here it comes into contact with its longitudinal side with the front surface of the free end of the rotatable armature 4, such that the front surface of the rotary armature 4 can slide along the longitudinal side of the leaf spring. The rotary armature 4 is here in a butt position with the free end of the changer

6. Before describing the operation of the door entry system in the door below, it is worth mentioning how the door entry system is mounted on the door. The door, which is not represented in the figures, is formed by a fixed door frame and a door leaf mounted thereon in a mobile manner. The door leaf can be configured as a swinging leaf which is rotatably suspended by means of ribbons in the door frame, preferably as a rotating stop leaf. The electric doorman shown in the figures is a modular unit 1 with a frame-shaped box, in which the above-described components of the electric doorman are housed. These are the following previously mentioned components: Doorman latch 2, changing table 6 and bolt device consisting of electric coil, induced rotating 4 and leaf spring 8, respectively with the assigned reset springs 2f, 6f, 4f. In the box of the electrical doorman similar to a frame, the components are arranged in such a way that the modular unit has a substantially square shape. The rotating shaft 2a, 4a and 6a of the doorman latch 2

or of the rotary armature 4 or of the changer 6, respectively, are fixedly arranged as pivot bearings inside the housing. The pivot axis 8a of the leaf spring 8 is formed by the insertion point of the leaf spring 8 in the wall of the box. For mounting on the door, the modular door entry unit 1 is mounted on the fixed door frame, so that the door latch 2 collaborates with the opposite element arranged on the door leaf. The opposite element is preferably configured as an elastic lock latch. In another mounting distribution, the modular door entry unit 1 may also be mounted on the door leaf and the opposite element may be mounted on the fixed door frame. Referring now to the electrical connection of the electric door entry system, the following should be noted: In the exemplary embodiment shown, the electric door entry system is configured as an electrical work current porter. When the electric coil is not powered by current, the rotating armature 4 is in the locked position shown in Figure 1. The changer 6 is locked by the rotary armature 4.

The door latch 2 which is in full contact with the changer 6 is also locked in this way, that is, locked. When the electric coil is supplied with current, the rotating armature 4 is moved counterclockwise (counterclockwise) from the position illustrated in Fig. 1. This can be done because the rotary armature 4 is repelled by the coil placed under electrical tension. The rotary armature 4 in this way is placed in the position represented in figure 2, where the rotary armature 4 is engaged with the leaf spring 8. In this driving position represented in figure 2, the door latch 2 is released. In alternative embodiments, the electric gatekeeper can also be configured as a standby electric gatekeeper, that is, the gatekeeper will be in its locked position when the electric coil is under electrical tension, while it will be in its release position when the electric coil is free of electric voltage. Referring now to the mode of operation of the door entry system, the following should be noted: This description starts from the assumption that the door entry system is configured as a working current door entry system and that the door entry unit's modular unit is mounted on the fixed door frame and the door latch 2 collaborates with an opposing element configured as an elastic lock latch on the door leaf: A fundamental function of the door intercom is that in the door's closed position the door leaf It is blocked by the electric doorman. This locking of the door leaf in the closed position occurs when the door entry device is in the operating position illustrated in Figure 1. In this operating position, the door locking device is locked in the initial position represented in Figure 1 and the same is grabbed from behind by the lock latch on the side of the door leaf. In the case of the work current electric door intercom described in the exemplary embodiment, the electric bolt device is free of electrical voltage. When the electric bolt device is then placed under electrical tension, the door latch lock is lifted 2. The drive position shown in Figure 2 is produced, that is to say with

the electric voltage of the electric coil, the rotary armature 4 is turned to

the position shown in figure 2 against the reset spring 4f. The dock of

crossbow 8 finally grabbed behind the armature rotatable 4 and keeps it engaged in the Estrada position in figure 2, depending on whether the power supply of the electric porter is maintained or if it is disconnected again. In the drive position shown in Figure 2, the door can be opened, that is to say that the door leaf can be moved from the closed position in the opening direction. During this opening movement, the doorman latch 2 is turned out

from its initial position illustrated in Fig. 2 under the action of the lock latch, that is, it rotates around the axis 2a. The doorman latch 2 here draws the changer 6, that is to say it turns the changer 6 out of the position illustrated in Figure 2 clockwise. At the end of its turning movement, the changer 6 comes into full contact with the leaf spring 8 and loads it in such a way that it deforms elastically and rotates around the axis 8a in the area of its contact point represented in the figure 2, similar to a single arm lever, clockwise. The free front surface of the crossbow spring 8 slides along the lateral surface of the rotating armature 4 until it passes beyond the end of the rotating armature, until finally the rotary armature 4 leaves the hitching position of the crossbow spring 8 and rotates under the action of the reset spring 4f clockwise from the position shown in figure 2. The rotary armature 4 finally comes into full contact with the free end of the changer 6. Goalkeeper latch 2 returns to be turned to the initial position represented in figure 1 under the action of the reset spring 2f, that is, as soon as the door leaf has left the closed position. The changer 6 follows the doorman latch 2 under the action of its reset spring 6f, that is, it rotates from the position shown in Figure 2 counterclockwise and finally reaches the position illustrated in Figure 1. The armature swivel 4 which, as explained previously, is released after being released from its engagement position with the leaf spring 8 and forming a butt contact with the end of the changer 6, remains under the effect of the reset spring 4f in this operating position with the changer 6 Y therefore follows the changer 6 to the position represented in Figure 1. The second embodiment shown in Fig. 3 differs from the first example of representation of Fig. 1 Y 2 due to the fact that a spring 9 is inserted between the changer 6 and the leaf spring 8, in the case a helical compression spring is shown, which guarantees a spring operation of b it lifts 8 by the magazine 6, that is to say, the lifting of the lock of the rotary armature 4, even when the door latch 2 and / or the changer 6 only performs a turn in a small angular area of rotation. In practice, such a smaller angle of rotation can be produced if the lock latch slides backwards simultaneously. Instead of the helical compression spring 9, another spring can also be used, for example a solid spring. The spring is preferably supported with one of its ends on the leaf spring 8 and with the other end on the changing table 6. A bearing can be provided in the respective support site, which meshes and / or the respective end is fastened of the spring. The spring 9 can also be held respectively only unilaterally in the changer 6 or in the leaf spring 8 and come into full contact respectively with its other end. Preferably, the respective support or support points are located in the region of the two intended contact sites of the changer 6 and the leaf spring 8 in the exemplary embodiment of Figures 1 and 2, that is, in the range of the end with a free lever of the changer 6 and the leaf spring 8. Instead of the spring 9, in other derivative embodiments, another transmission device can also be selected between the changer 6 and the leaf spring 8. This is also a device similar to a gear or other transmission or multiplication device configured in another way, also rigid, but preferably mobile. The embodiment shown in Figures 4 to 7 corresponds in its construction and operation to the embodiment of Figure 3. Figure 4 shows the initial traction state of the door entry system. The door is locked in the closed position by the door intercom. In the position of the electric doorman shown in Figure 5, the coil has rotated the rotary armature 4 counterclockwise. The leaf spring 8 is assaulted from the rotating armature 4 in a manner similar to a hitching movement. The free front surface of the leaf spring 8 is abutting the lateral surface of the rotatable armature 4 and keeps the latter in position. The door can be opened now. Figure 6 shows the position in which the doorman latch 2 is rotated around the axis of rotation 2a due to the opening of the door. The changer 6 rotates clockwise and because of this the leaf spring 8 is pushed out of its locked position by the compression spring 9. Figure 7 shows the position of the electric doorman where the doorman latch 2 has turned additionally around the axis of rotation 2a, because the door has opened completely. As soon as the goalkeeper latch 2 turns back under its reset spring, the changer 6 continues to rotate counterclockwise. At the same time, the rotary armature 4 rotates clockwise and returns to its initial position, which is shown in Figure 4. It should be noted that the compression spring 9 between the changer 6 and the leaf spring 8 has the effect that the rotating armature can return to the initial position shown in Figure 4 already after a single turn of the doorman latch 2 by very few angular degrees, as shown in the position in Figure 6. This means that a full opening of the doorman latch to the position shown in figure 7, if the pressure spring 9 is configured accordingly. With regard to the construction configuration of the leaf spring 8 in the embodiment of figures 1 and 2, in the embodiment of figure 3 and in the embodiment of figures 4 to 7, it should be noted that the leaf spring 8 there is configured as a construction component of plastic material made in one piece. The leaf spring 8 has a clamping end 8b and a free operating end 8f. The clamping end 8b, the aforementioned exemplary embodiments, is configured as a clip head, which engages in a corresponding clamping hole in the wall of the door of the electric door entry. The free-acting end 8f has a thickened end head 8fk with a narrower butt-coupled contact end 8fj. The thickened end head 8fk acts in conjunction with the changer 6, where specifically in the embodiment of figures 1 and 2 said collaboration takes place directly between the end head and the changer, because the end head is placed in full contact with the changer 6. In the exemplary embodiment of Figure 3 and in the exemplary embodiment of Figures 4 and 7, the spring 9 is sandwiched between the head 8fk and the changer 6. Here the head 8fk shape

a support with a support surface for the end of the spring 9. The other end of the spring rests directly on the side surface at the free end of the changer 6. The spring 9 in the embodiment shown is configured

as helical compression spring.

The narrower drive end 4fj coupled to the end head 8fk collaborates with the swiveling armature 4. The free front surface of the narrower drive end 8fj in the released position of the power intercom is in abutment with the side surface of the swivel armature. 4, to keep the rotary armature 4 in its release position. This position is shown for the first embodiment in Figure 2 and for the second embodiment of Figure 3. For the embodiment of Figures 4 to 7, this position is illustrated in Figure 5 the lateral surface of the narrower butt contact end 8fj, which is formed between the front surface and the thickened head 8fk, constitutes a sliding surface for the free front surface of the rotatable armature 4, as long as the leaf spring 8 has been rotated by the changer out of its locked position and the swivel armature 4 returns to its locked position due to the reset spring 4f. In the first exemplary embodiment, this readjustment movement occurs from the position shown in Figure 2 towards the position illustrated in Fig. 1. In the exemplary embodiment of Figures 4 to 7, this adjustment movement of the armature swivel 4 takes place from the position shown in figure 5 towards the position represented in figure 4. In the exemplary embodiment of figures 4 to 7, the thickened head 8fk is thickened in a prominent manner on both the oriented side towards the changer 6 as well as on the side facing the wall of the box. The wall of the box presents a complementary depression in this region oriented towards the changer

6. In this way, the leaf spring 8 can occupy a position in which it is generally arranged parallel to the wall of the box, such that the rotating armature 4 can rotate without obstacles again to its locked position. illustrated in figure 4 starting from its release position shown in figure 6, as soon as the spring 9 is loaded by rotating opening of the doorman latch 2 during the opening of the door by the changer 6 or, respectively, as soon as the goalkeeper latch 2 is loaded and that way the leaf spring 8 is turned out of its locked position. The embodiment shown in FIG. 8 corresponds in its structure and in its function to the exemplary embodiment illustrated in FIGS. 4 to 7, except for the difference that in FIG. 8 the leaf spring 8 can be connected and disconnected. To this end, it is envisaged that the leaf spring 8 can be brought to a first position, in which it is connected, as well as to a second position, in which it is disconnected. This is carried out in Figure 8 by the displacement of the leaf spring 8 along its longitudinal extension. In its position shifted to the left, the leaf spring 8 is connected, while in its position shifted to the right it is disconnected. This longitudinal displacement of the leaf spring 8 is possible because the clamping hole in the wall of the box in which the clamping head 8b of the leaf spring is engaged is configured as an elongated hole extending in the longitudinal direction from the crossbow spring. In the left position, that is to say connected, the left clip edge of the clamping head 8b is located on the left edge of the clamping hole in the engagement contact. In this connected position shifted to the left, the drive head 8fk protruding and facing the wall of the box engages in the complementary depression provided in the wall of the box, when the leaf spring 8 is turned by the changer 6 out of the top contact position of the rotating armature 4. In the position shifted to the right, that is, in the disconnected position of the leaf spring 8, the right clip edge of the clamping head 8b is positioned at the right edge of the hole clamping The free end is outside the radius of action of the rotating armature 4. The thickened drive head 8fk is located outside the depression in the wall of the box. To lock the leaf spring in this disconnected position, shifted to the right, it has a hitch nose 8r on the side facing the wall of the box, which in this disconnected position engages in the fastening hole in the wall of the box and placed in hitch contact with the edge

left of the clamping hole. In the exemplary embodiments shown in the figures, instead of the one-piece plastic leaf spring 8, a leaf spring composed of several structural components can also be used. Likewise, the leaf spring 8 can also be made of material other than plastic, for example sheet metal. Instead of the leaf spring, another lever device can also be used in a corresponding arrangement. The lever device in this way can be formed, for example, by a rigid lever that is loaded through a separate spring. Instead of the lever device, a spring loaded axial push button or push button can also be used which can be moved to the corresponding position on the inner side of the box wall to be operated perpendicular to the plane of the inner side of the box. The place of the leaf spring 8 provided in the embodiments of the figures, a safety lock can also be provided on the changer 6, specifically on the free end of the changer 6 which is oriented towards the swiveling armature 4. It can be be taken out of the contact position of the rotary armature, when the changer is rotated by the operation of the door latch 2 during the opening of the door. Here the safety bolt can be removed in the same way from the top contact position of the rotating armature, to finally grab the free front surface of the rotary armature 4. For an additional embodiment of the electric door entry system, Figure 9 shows a section illustrating the changer 6 with a safety lock 8 disposed thereon. The safety bolt 8 is configured as a leaf spring which in the region of its support and clamping end 8b has a sleeve segment that in its cross-section is complementary to the cross-section of the changer 6 and is mounted on the changer 6. The sleeve-shaped segment has an open axial groove on the side opposite the side of the leaf spring. The free end of the safety bolt at the end opposite the support end is configured as a protruding segment of the leaf spring. This protruding segment of the leaf spring constitutes the effective end of the safety bolt 8, which collaborates in a manner analogous to that described in the previous exemplary embodiments with the rotary armature 4 not shown in Figure 9. The safety bolt 8 in the exemplary embodiment of figure 9, it is hooked with its support segment in the form of a sleeve 8h in a hooking device on the changer 6. In the position shown, the safety lock 8 is disposed in such a way on the changer 6 that it can collaborate in the manner described with the rotary armature 4 not shown in Figure 9. On the changer 6 a second coupling device is provided to position the safety lock 8 with its support segment in a second position in the Figure 9 to the right, in the direction of the axis of rotation 6a. In this second position, the safety lock is disposed in its disconnected position, in which with its effective end 8f it is disposed outside the radius of action of the rotatable armature 4. In an example of a modified embodiment with respect to Figure 8, the spring force of the leaf spring 8 can also be configured in an adjustable manner, because the position of the axis of rotation 8a can be adjusted along the longitudinal extension of the leaf spring for this purpose it can be provided that the leaf spring 8 is configured in two parts. It may be provided that the clamping head 8b and the lever end of the leaf spring are formed by two pieces and that the lever end of the leaf spring can be inserted into the head of the spring with a variable insertion length. Thus, in the embodiment shown in Figure 8, in the first position displaced

to the left of the clamping head 8b The lever end of the leaf spring can be inserted relatively deep, while in the second position shifted to the right the lever end of the leaf spring can be inserted shallower , such that the dock

5 of crossbow in this position is not disconnected but only has a lower spring force. List of reference symbols 1 Construction element "door entry system" 2 Door entry latch

10 2nd axis of rotation 2 4 Rotary induction 4th axis of rotation 4 4f Reset spring 6 Changer

15 6a Axis of rotation of 6 6f Spring of adjustment 8 Spring of crossbow (safety lock) 8a Insertion point of 8 in the door of the electric doorman / axis of rotation of 8 8b Lock latch

20 8f Free drive end 8fk Compactor head 8fj Narrow stop end 9 Spring

Claims (15)

1. An electric door intercom for a door with a door leaf mounted movably inside or on a door frame, comprising -a door latch housed in mobile form (2) and -a bolt device electrically operable with an electric actor and a
bolt member (4) controllable by the actor, hereinafter referred to as bolt member controllable by actor (4), wherein the bolt member controllable by actor (4) directly collaborates with the doorman latch (2), or collaborates indirectly with the doorman latch (2) by means of a changer (6) configured as a lever, and where the bolt device can be operated in such a way that in the first actuation position of the doorman latch (2) it exerts the lock under the action of the bolt member controllable by actor (4) , to fix the door leaf in the closed position, while in a second position of the drive the door latch (2) is released to lift the door leaf lock, it being provided that the electrically actuated bolt device has a safety bolt (8) which is arranged in collaboration with the actor controllable bolt member (4) and with the doorman latch (2) or with the changer (6), in such a way that in the actuation position of the electrically operable bolt device the bolt member controllable by actor (4) can be locked in its release position by the safety bolt (8) and that lock can be lifted by the action of the latch action. goalkeeper (2) or the changer (6) exerted on the safety bolt (8), when the door leaf moves out of the closed position and due to this the doorman latch (2) or the changer (6) they move in a forced manner, characterized in that the safety bolt (8) can be optionally connected and disconnected, because the safety bolt (8) can be taken to a connected position in which it can be placed with its effective segment butt with the bolt member controllable by actor (4), and because the safety bolt (8) can be brought to a disconnected position, in which it cannot be butt with its effective segment with the member of Hill jo controllable by actor (4).

2.

An electric door entry system according to claim 1, characterized in that the safety lock (8 and / or the effective safety lock segment (8) in the connected position and in the disconnected position are positioned at a different distance in relation to to the bolt member controllable by actor (4).

3.

An electric door entry unit according to one of the preceding claims, characterized in that the safety lock (8) is configured as a lever device, whose lever support and / or whose free lever end in the connected position and in the disconnected position in relation to the bolt member controllable by actor (4) it is positioned differently.

Four.

An electric door entry system according to any one of the preceding claims, characterized in that the safety lock (8) is configured as an elastic lever and / or as a lever loaded by a separate spring.

5.

An electric door entry system according to any of the preceding claims, characterized in that the safety lock (8) is configured as a leaf spring made of plastic material and / or has at least one segment that is configured as a leaf spring made of plastic material.

6.

An electric door entry system according to any one of the preceding claims, characterized in that the safety lock (8) is mounted on a frame or on a wall of the electric door entry box or the changing table (6).

7.

An electric door entry system according to any one of the preceding claims, characterized in that the safety bolt (8) has a segment of clips and / or hook configured the plastic material, with which the safety bolt is mounted on the frame and / or on the wall of the door of the electric porter or the changing table (6).

8.

An electric doorman according to claim 7, characterized in that in the frame and / or in the wall of the box and / or in the changing table it is forming a complementary segment with the clip and / or hitch segment, with the in order to support or fix the security lock there.

9.

An electric doorman according to claim 8, characterized in that at least two complementary segments are formed in the frame and / or in the wall of the box and / or in the changing table with the clip and / or hitch segment, in order to support and / or fix the safety bolt optionally in one or another segment.

10.

An electric doorman according to any one of the preceding claims, characterized in that the safety bolt (8 collaborates with the bolt member controllable by actor (4).

eleven.

An electric doorman according to any of the preceding claims, characterized in that the safety bolt (8) has a free lever end that collaborates with the actor controllable bolt member (4).

12.

An electric doorman according to any of the preceding claims,

characterized in that the actor controllable bolt member (4) in its release position locked by the safety bolt (8) is in full contact with the safety bolt (8). 13. An electric doorman according to claim 12, characterized in that in 5 the butt contact position of the actor controllable bolt member (4) grabs the safety bolt (8) from behind and / or engages with said safety bolt (8). 14. An electric doorman according to any one of the preceding claims, characterized in that a free end of the changer (6) or the doorman latch (2) 10 collaborate directly or indirectly with the safety bolt (8) to lift the lock of the bolt member controllable by actor (4) from the release position. 15. An electric door entry system according to any of the preceding claims, characterized in that between the safety lock (8), on the one hand, and the changing table (6) or the doorman latch (2), on the other hand, a spring (9) or another transmission device is inserted.  Fig. L   4f 4th  _ ,, _ [2nd ~ ....... Fig. 2 2nd .. to... ................ '-. 4th _.... 12a ......... Fig. 3  Fig. 4   4th Fig. 5 4th Fig. 6  Fig. 7   Fig. 8 ~ x I I I I I I I I ~ x  Fig. 9 Fig. 10