RU2334070C2 - Lock - Google Patents

Abstract

FIELD: construction.

SUBSTANCE: invention is related to lock. Lock contains casing, cover plate, spring-loaded crossbar installed in casing, auxiliary latch, at least one fastening element, slide that is equipped with link and holders, at that bolts of crossbar jumping control enter into holders, and electric actuator for control of lock functions. As electric actuator lock contains bistable actor, by means of which in its de-energised condition the turn of fastening element may be released inside lock casing.

EFFECT: creation of lock that is blocked electrically with the possibility of door opening in de-energised condition.

3 cl, 3 dwg

Description

The invention relates to a castle according to the preamble of claim 1 of the formula.

A lock is known from DE 10261129 A1, comprising a housing, an overlay, a spring-loaded bolt located in the housing, an auxiliary latch, upper and lower latching elements, an engine equipped with a link and catches, and the latches include locks for controlling the bolt popping out and actuated by a push-pull door handle landing element for the operation of the lock. At the same time, the upper latching element is located above and the lower one is located under the crossbar, and they interact with the auxiliary latch with the possibility of the bolt popping out only when, after the latching elements and the auxiliary latch are triggered, the latching elements fall into their position turned outwardly from the lock case by the plate. Depending on the release, for example due to an access control system, a lock controlled by an electric motor can retract the crossbar and release the latching elements.

In places of deprivation of liberty, psychiatric hospitals or department stores, electrical interlocks are often installed on the doors to guarantee controlled use, in which case the interlock can be released. Also, when the current is cut off, it must be ensured that the door opens. The lock with the control from an electric motor from DE 10261129 A1 cannot be used as a lock for such doors on the evacuation and rescue paths, since when the current is turned off, the lock is released and, therefore, the door cannot be opened.

The basis of the invention is the task of creating a lock that is electrically blocked, and in a de-energized state, the door should open.

This problem is solved by the features of claim 1 of the formula.

The dependent paragraphs form preferred embodiments of the invention.

Self-locking locks are often used in external doors to ensure the building is locked with protection against burglary. Similar locks are also made in the form of self-locking emergency locks used on evacuation and rescue routes. Due to the emergency function, when the door handle is pressed, the latch and the bolt are pulled into the lock, as a result of which the previously locked door can be opened immediately.

The lock interacts, as you know, with a locking plate located on the door frame having one or more slots, which may include a latch and a bolt.

In well-known locks with latching elements that rotate to each other, they rotate from the lock lining into the slot of the locking plate. In particular, with a device with one latching element above and one latching element under the crossbar, the lock is centered with respect to the locking plate, as a result of which reliable locking of the crossbar and its entry into the slot of the locking plate is achieved. These self-locking locks often have process controls that prevent the bolt from accidentally popping out when the door is open. To do this, such locks have an auxiliary latch which, when the door is closed, is actuated by the locking plate, and the bolt pops up only when the latching elements reach the position turned outward from the lining. Thus, the door is closed and the bolt is centered by the snap elements in the slot of the locking plate and can thereby pop out freely. The door locks securely.

The lock can be made in the form of a purely mechanical self-locking lock and equipped with an emergency function, and the lock can be unlocked on one side at any time by pressing the push handle. On the other hand, unlocking the lock is usually possible only by means of a locking cylinder, since instead of the push handle, only a fixed round door handle is installed to prevent unauthorized access.

The lock can also be equipped with a composite landing element of the push handle, driven, for example, by an electromagnet. Therefore, the connection between the push handle and the opening mechanism is eliminated, so that access to the protected area can be controlled. This can occur through access control, such as a security guard, or through an electronic access control system such as a chip card, code entry, or fingerprint. With authorized access, both halves of the seating element of the push handle are interconnected by means of an electromagnet, and the lock can be actuated by an external push handle. The state of the lock can be registered in this case by means of sensors and fed to the control unit or signaling device.

Due to the emergency function of the lock, you can open the door at any time to leave the building or protected area. However, it is often desirable to do this only under control, for example in prisons or psychiatric hospitals. Therefore, on these doors additional locking elements are placed, driven by a fire alarm installation or emergency switch. These interlocking elements are, for example, electromagnetic holding plates or door openers mounted to open the door in the evacuation direction. Also, in department stores, it is desirable to trigger an emergency button to open the door to increase the threshold for unauthorized opening of the door and the use of an emergency exit.

Thanks to the lock according to the invention, the complicated installation of an additional lock on the door is no longer required.

According to the invention, the lock is already provided with an electrically actuated actuating element which, when energized, prevents rotation of the latching elements. The actuating element may be an electromagnet or another type of actor, for example a piezoelectric actor. At the same time, the locking element of the actor, for example, the armature of the electromagnet, or the element interacting with the snap elements, enters the rotation zone of the latching elements, and thereby prevents the rotation of the latching elements inward. The actor may contain a locking element held against the force of the spring when the current is in the current actor in the locking snap elements position or directly in the locked position.

Below an example embodiment of the invention is explained in more detail in the drawing, which shows:

- figure 1: lock with an electromagnetic actuator in the open position when viewed from the side;

- figure 2: the lock of figure 1 when looking at the pad;

- figure 3: the lock of figure 1 in a partially disassembled state with the locking of the outwardly turned snap elements.

Figure 1-3 shows a self-locking lock 1 with a pad 2 for mounting the lock 1 in the lock pocket of the door (not shown), comprising a housing 3 located in the lock pocket of the door. In this case, the castle body 3 is made in size so that the castle 1 is equally suitable for the lock pockets of metal and wooden doors. Therefore, it is preferable for different types of doors to require only one lock 1. Wooden doors have deep lock pockets of small height. Compared to them, metal doors allow a small installation depth, but a large structural height. Lock 1 due to its special design is designed for a correspondingly smaller size of the lock pockets. Shown in figure 2 when viewed from above, the overlay 2 of the lock 1 is removable, which makes it easy to fit to various designs of doors.

The lock 1 interacts, as you know, with a locking plate located in the box, having one or more slots 19, which can include a latch and a bolt 6. The slot 19 of a locking plate (not shown) shown in dashed lines in Fig. 2 explains the optimal centering of the bolt 6 .

A composite device with a latching element 4 above and a latching element 5 under the crossbar 6, according to the type of the known cross latch, provides the centering of the lock 1 relative to the locking plate and, thus, reliable jumping out and the entry of the crossbar 6 into the slot 19 of the locking plate. In this case, “popping up” should be understood as the offset of the bolt from the lock case over the pad. The latching elements 4, 5 are rotated outward from the lining 2 and inward into the slot 19 of the locking plate so that each of them rests on one of the opposite inner sides of the slot 19. Due to the location of the bolt 6 between the latching elements 4, 5 and less than with an external distance between the outwardly turned latching elements 4, 5 of the width of the crossbar 6, the latter can completely pop out into the locking plate. The possible inclined position of the locking plate relative to the lock 1, for example, due to the skew of the door, can, however, be centered due to the distance between the upper 4 and lower 5 latching elements.

Of special importance for self-locking locks 1 is that when the door is open, accidental popping of the bolt 6 cannot occur. For this, such known locks 1 have an auxiliary latch 9 which, when the door is closed, is actuated from the locking plate and causes the bolt to pop out. The auxiliary latch 9, however, can also be actuated, for example, by playing children, which causes the bolt to pop out, and thus the door can no longer be closed.

The lock 1 has a process protection that causes the bolt to pop out only when the auxiliary latch 9 and simultaneously the latching elements 4, 5 have been actuated, and then the latching elements 4, 5 have again reached the outwardly turned position from the lining 2. This process corresponds to the process of closing the door, and the auxiliary latch 9 and the latching elements 4, 5 are rotated as a result of interaction with the locking plate. After the door is completely closed, the auxiliary latch 9 remains activated, however, the latching elements 4, 5 enter the cutout of the locking plate and occupy their outwardly turned position. Only this causes the bolt to pop up.

The spring-loaded crossbar 6 is guided in the link 8 located in the engine 7, as shown in FIG. Due to the release of the movement of the displacement of the engine 7, the crossbar 6 can change its position and go beyond the lining 2 from the housing 3 of the lock. To release the movement of the displacement of the engine 7 requires the operation of the auxiliary latch 9, on which the latch is located, interacting with the engine 7.

The latching elements 4, 5 interact with the rocker arms 10 and can only rotate together, and the engine 7 is released only when the latching elements 4, 5 are turned outward. If the latching elements 4, 5 are turned inward, then the return element 12 interacting with the latch 11 of the latch is rotated so that the transmission element 13 is held thereon. Due to this, the transmission element 13 and the slide 7 are blocked, since the finger 14 located on the beam 10 enters the cutout the engine 7. If the latching elements 4, 5 are completely turned outward, then the latch lock 11 moves between the two rocker arms 10. The returning element 12 can be rotated and releases the transmission element 13, and through the finger 14 the slider 7. Spring-loaded second bolt 6 moves along the slider 7 and 8 scenes pops up.

The lock 1 can be made in the form of a purely mechanical self-locking lock and equipped with an emergency function, and the lock 1 can be unlocked at any time by pressing the push handle.

On the other hand, unlocking the lock is usually possible only by means of a locking cylinder 15, since instead of the push handle only a fixed round door handle is installed.

It can also be equipped with a composite landing element 16 of the push handle, driven by an electromagnet. This eliminates the connection between the push handle on one side of the lock and the opening mechanism, so that you can control access to the protected area. This can occur through access control, such as a security guard, or through an electronic access control system such as a chip card, code entry, or fingerprint. With authorized access, both halves of the seating element 16 of the push handle are interconnected by means of an electromagnet, and the lock 1 can be actuated by an external push handle. The state of the lock 1 can be recorded in this case by means of sensors and fed to the control unit or signaling device.

Due to the emergency function of lock 1, you can open the door at any time to leave the area. Since this, however, is often desirable to be done only under control, evacuation doors are often equipped with additional locks, such as electromagnetic holding plates or an opener, which is located opening in the direction of evacuation.

According to the invention, the lock 1 is already provided, therefore, preferably made electrically actuated by the actor 17, which, in the current state, prevents the rotation of at least one of the latching elements 4, 5. The actor 17 may be an electromagnet or other type of actor, for example a piezoelectric actor. In this case, the locking element 18 of the actor 17, for example, the anchor of the electromagnet, enters the rotation zone of the rocker arm 10, thereby preventing the rotation of the latching elements 4, 5 inward. The actor can also act on the latch lock 11 or an element interacting with it, such as the transfer element 13, whereby the displacement of the latch lock 11 can be controlled to release the rocker arm 10 and, thus, the latching elements 4, 5.

The actor 17 is active in this case in the locking snap elements 4, 5, i.e. is under current, as a result of which, when the current is turned off, the snap elements are released and the emergency function is performed.

List of Reference Items

1 - lock

2 - overlay

3 - lock case

4 - upper latching element

5 - lower latching element

6 - crossbar

7 - engine

8 - backstage

9 - auxiliary latch

10 - rocker

11 - latch lock

12 - return element

13 - transmission element

14 - finger

15 - locking cylinder

16 - landing element of the push handle

17 - actor

18 - locking element

19 - cutout.

Claims (3)

1. A lock comprising a housing, an overlay located in the housing, a spring-loaded bolt for securely locking the door, controlled by an engine equipped with a link and catches, moreover, to ensure that the bolt jumps out, the bolts are configured to enter the engine latches, and also contains an auxiliary latch and at least one latching element, wherein at least one latching element is pivotable inwardly of the lock body, as well as a push-pull door p the landing element for actuating the lock and the electric actuating element for controlling the functions of the lock, characterized in that the electric actuating element is made in the form of a bistable actor (17) interacting only with the latching element (4, 5), and the actor is made with the possibility of releasing the rotation of the latching element (4, 5) inside the case (3) of the lock in its de-energized state regardless of the bolt (6) released by the engine (7), while the actor (17) acts on the interacting with the latching electric element (4, 5), a piece made in the form of a rocker (10), a lock (11) of the latch or a return element (12), to control the rotation of the latching element (4,5), and the locking element (18) of the actor (17) is made with the ability to enter the zone of rotation of the rocker arm (10) or the zone of movement of the constipation (11) of the latch or the return element (12). 2. The lock according to claim 1, characterized in that the actor (17) is configured to interact with the latching element (4, 5) or with parts interacting with it with the possibility of releasing the latching element (4, 5) when the actor is de-energized (17) . 3. The lock according to claim 1, characterized in that the actor (17) is connected to the latching element (4, 5) with the possibility of drawing it into the lock case with the de-energized actor (17).

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