EP1260658B1 - Lock arrangement for a door, particularly for a security door - Google Patents

Abstract

The lock for a security door has shield plates (21,22) on each side surface of the lock. The shield plates have openings for a key and support sliding cover plates (33,34) for the openings. The lock has a sensor (44) for fixing the position of the slide covers. The sensor is connected to a central control. The sensor can be formed by contacts opened and closed by movement of the covers.

Description

The invention relates to a lock arrangement for a door, in particular for a Security door, with one arranged in a receiving opening of the door Security lock and a sign placed on the door leaf, which for Passage of the key is provided with an opening, the opening when the key is removed, is covered by a slider on the Shield is passed.

A lock arrangement of the aforementioned type is known from FR 2 686 116. A security lock inserted into a door is already shown here one side is covered with a sign arranged on the door leaf. The label is included for the insertion of a key into the security lock a corresponding opening through which the key can be carried out as required. When the key is removed, it is Feed-through opening for the key covered by a slide that is relatively movable to the shield on this. To be able to determine in the position of the slide is in accordance with FR 2 686 116 Detection element is provided, which has a contact element which with the relatively movable slide comes into contact as soon as it is in a the opening in the opening on the plate has moved.

There are usually two for unauthorized manipulation of security locks Starting points. Often an attempt is made about the lock housing and the latter to reach the faceplate to reach the security lock. This There is no possibility if the door is locked and therefore the faceplate the lock is covered by the door frame. The second option one Manipulation exists in the area on both sides of the security lock door plates placed on the door leaf. These are each with an opening for Pass through the key, and also with an opening for the Axis of the door handle. It is therefore already known, for security purposes To provide the door hanger with a slider, which opens the door for completely covers the key with the key removed. Before the Key is inserted, this slide must first of the opening be moved away.

The invention has for its object to provide a lock arrangement for a door and in particular a security door that at least complicates manipulation by unauthorized persons on the closed door.

To achieve the above object it is proposed with the invention, a lock assembly for a door, in particular a safety door, comprising a cylinder disposed in a receiving opening of the door safety lock and with applied on both sides of the security lock on the door leaf shields that for passage of the key, each with a The opening is provided, the opening being covered by a slide guided on the respective shield when the key is removed, a detection element for determining the position of the slide being arranged in the lock housing of the security lock, the detection element being connected to a central control unit via a signal line and wherein an actuating element extends between the shields, which extends with a middle section on the detection element and with its one end section on one side and with its other end section on the other side slider supports.

According to the invention, therefore, the slide is monitored, and so on to detect unauthorized manipulations in the area of the shield and thereby difficult. For this purpose, there is a detection element in the door for determining the Position of the slide arranged. This detection element preferably has an open or closed contact, with the contact at opening closed by the slide is preferably closed. Over a Signal line is the detection element with a central control unit connected, for example with suitable optical or acoustic Signal elements can be provided. It is also possible to use the signal lines several security doors designed in this way to one centrally in the building arranged control unit to control all the doors from there centrally to be able to monitor.

According to the invention extends between the shields Actuator, which is with a central section on the detection element such as with its one end section on the one, and with its other end section on the other slider supported. In this way, both sliders are simultaneously using a single one Detection element for any changes in the position of the slide monitored.

An embodiment is also preferred in which the one end section extends through supports a pivot axis on the one slide. In this case it is based preferably the other end section from above on a projection that is arranged on the other slide. That is how it is Actuator over the pivot axis with one of the two sliders connected, on the one hand the assembly of the shields on which the castle or the Door leaf facilitates and on the other hand security in the event of removal of the complete shield improved.

To improve security against tampering by a complete Removing the shields is also done with an embodiment of the invention suggested that the two shields be secured by at least one screw are connected to each other with their screw head on a sign supports and with their thread formed at its other end in a Thread of the other shield engages and that the pivot axis of the Actuator is mounted on the plate on which the screw head supported. Will unauthorized the connecting the shields together Screw except what, for design reasons, only from that side can take place on the shield with the screw head in it is located, the sign is at the same time articulated on its slide stored actuator retracted, which immediately leads to a Signaling leads.

According to a further embodiment, it is proposed that the Detection element within the lock housing of the security lock is arranged. Such a protected arrangement is particularly advantageous for Security locks with electrical components already present in them, For example, an electric motor unlocking for the latch and bolt of the Castle. In this case, the signals of the additional Detection element are passed on via the same signal lines which also the castle as a whole to, for example, a central tax and Control unit is connected.

Finally, in the case of a lock arrangement, it is proposed that that the slider has a first area and a piece formed therefor has a second area, the first area being freely accessible from the outside covers the opening, whereas the second area to the outside through the Shield is covered and inside is provided with a projection on which the Actuating element is supported with its end section. Through this design manipulations on the slide are particularly critical in that Area difficult in which the actuating element is supported on the inside.

Figur 1

eine aus einem Türausschnitt, einer Kassette, einem elektrisch betätigbaren Sicherheitsschloß sowie Türschilden zusammengesetzte Schloßanordnung in einer Schnittdarstellung in der Ebene des Schloßgehäuses;

Figur 2

in einer Ansicht ein Schild, welches auf das Schloßgehäuse bzw. das Türblat nach Figur 1 von außen aufgesetzt ist;

Figur 3

in einer Schnittdarstellung die beiden Schilde der Schloßanordnung, wobei das Schloßgehäuse aus Gründen der Übersicht lediglich gestrichelt dargestellt ist;

Figur 4

die Gegenstände nach der Figur 3 in einer leicht perspektivischen Ansicht;

Fig. 5a und 5b

Darstellungen, welche den Figuren 3 und 4 entsprechen, jedoch in einer geänderten Stellung des Schiebers des einen Schildes;

Fig. 6a und 6b

Darstellungen, welche den Figuren 3 und 4 entsprechen, jedoch in einer geänderten Stellung des Schiebers des anderen Schildes.

Based on an embodiment of the invention shown in the drawing, further details and advantages are explained below. Show on the drawing:

Figure 1

a lock arrangement composed of a door cutout, a cassette, an electrically actuated security lock and door shields in a sectional view in the plane of the lock housing;

Figure 2

in a view a shield which is placed on the lock housing or the door leaf according to Figure 1 from the outside;

Figure 3

in a sectional view the two shields of the lock arrangement, the lock housing being shown only in dashed lines for reasons of clarity;

Figure 4

the objects of Figure 3 in a slightly perspective view;

5a and 5b

Representations which correspond to Figures 3 and 4, but in a changed position of the slide of one shield;

6a and 6b

Representations which correspond to Figures 3 and 4, but in a changed position of the slide of the other shield.

Central component of the in Figure 1 without the side shields Lock arrangement shown is an electrically actuated lock with a box-shaped lock housing 1 and one the end face of the lock housing 1 forend 2. The faceplate 2 completely covers the lock housing to the outside from, leaving only one opening through which the bolt 4 of the lock is passed through. The bolt 4 is mounted horizontally on the guide pin 3, the are attached to the inside of the lock housing 1. In the usual way protrudes Bolt head 5 of the bolt 4 out of the faceplate 2 of the lock housing 1, if provided the bolt 4 is in its closed position. The bolt head 5 is with a Inclined trap slope 6, because the bolt in the described Embodiment also functions as a trap and therefore also can be referred to as a "bolt latch".

About further, arranged on the lock housing 1 guide pin 9 is in the Lock housing an actuating part 10 stored. This leads to a translational Movement parallel to the direction of movement of the bolt 4. Still located an electric motor 11 in the lock housing. This is on one by one Swivel motor bracket 13 fixed to the housing 12 is arranged. The Electric motor 11 engages with a corresponding electrical control Tooth structure of the actuator 10, whereby this is withdrawn. Details of the design and interaction of the electric motor 11, Latch 4, locking element 8 and actuator 10 are in German Utility model specification 200 09 716.

The security lock with the lock housing 1 is located at the illustrated embodiment not directly in a receiving opening Door, but only indirectly. For this purpose, the lock housing 1 in a Lock pocket serving cassette 14 used, which in turn in the Receiving opening of the door 15 is arranged and fastened. The cassette is there made of sheet steel and consists of vertical side walls, an upper one Narrow side wall 17, a lower narrow side wall 18 and a rear wall 19 together. Between the lock housing and the upper and lower Narrow side wall 17 or 18 is a horizontally extending Space 20.

Part of the lock arrangement are also those in Figures 2 to 4 in individually shown shields 21, 22, which on both sides of the Security lock are placed on the door leaf of the door. Here is located 3, the lock housing 1 of the security lock can be seen between the two shields 21, 22. The shields are via screws 23, 24 connected with each other. Each screw 23, 24 is supported with its screw head 25 or 26 on the first plate 21, and engages with her at the other end trained threads 27 and 28 in a corresponding threaded hole 29, 30 of second shield 22 a.

Each of the two shields 21, 22 has a first opening 31, through which a lock cylinder 37 of the lock can be reached and a second opening 32 for inserting a security key for a tumbler of the Castle.

In each shield 21, 22, a slide 33 and 34 is vertically displaceable arranged. To operate the slide 33, 34, this is outside with a Grip recess 35 provided by means of which the slide z. B. using the Let the thumb slide up. Here, the lower edge 36 of the slide the opening 32 for the security key free, when the slider is lowered is covered to the outside.

The slide is guided in the respective plate by means of a suitable one vertical guide surfaces. Each slide 33, 34 is preferably designed such that that it has a first region 38 and a second one integrally formed for this purpose Area 39 has. The first area 38, which is freely accessible from the outside, covers the opening 32, whereas the second region 39 to the outside through the respective shield 21, 22 is covered. In the second area 39 is the slide 33 or 34 provided with a projection 40 or 41. Preferably, the Projection 40 in one piece on the slide 33 and the projection 41 in one piece molded on the slide 34.

Extends from the projection 40 to the other projection 41 Actuator 42, which has the shape of a pin. By means of axis 43 of a joint, the actuating element 42 is pivotable on the projection 40 of the first slide 33 mounted. Such an articulated bearing is missing on the other projection 41. Actuating element 42 lies with it its other end portion loosely on the protrusion 41. In the middle under the Actuating element 42 is a detection element 44. Das Detection element 44, as can be seen in particular in FIG. 1, is part of the Security lock, and fixed in the lock housing 1. Just one Contact of the detection element 44 protrudes upward from the lock housing 1 out. The actuating element 42 lies on this contact as a result of it Own weight or due to the action of a spring, not shown, and thereby closes the contact of the detection element 44 generated electrical signal is via a signal line to a central Control unit transmitted. This control unit is not part of the Lock arrangement and therefore not shown in the drawing. Is shown however, in Figure 1, a contact bar 45 of the lock, which with its contacts in corresponding contacts of a connector strip 46 of the cassette 14 engages. Therefore, by inserting the lock housing 1 into the cassette 14 directly and without electrical connection work to an electrical Connection to the castle. The connector strip 46 is over a corresponding electrical cable in connection with a central control unit, to which all other locks of the locking system are also connected.

The safety function of the detection element 44 provided with the contact Connection with the rod-shaped actuating element 42 is as follows explains:

Figures 3 and 4 show the idle state. The actuator 42 supports with its two end sections on the projections of the two sliders , whereby the contact of the detection element 44 is closed. In the Control unit thereby generates a "normal state" signal. Figures 5a 5b show a situation in which the slider 33 of the first shield 21 is raised. This is done via the pivot axis 43 with the slide 33 connected actuator 42 raised so that this is from the Contact of the detection element 44 releases. This leads to an interruption of the Signals, and thus to a corresponding message in the central Control unit. Here, the arrangement and design of the pivot axis 43 the shape that the actuator 42 up, but not how Figure 5a shows, can pivot down.

FIGS. 6a and 6b show a case in which only the slide 34 of the second shield 22 is raised. This leads to an increase in the relevant end portion of the actuator 42, whereby this to the Swivel axis 43 pivoted around. Again, that resolves Actuator 42 from the contact, and in the control unit one appropriate message submitted. The same is because of the seesaw-like Design of the actuator 42 also the case when both sliders 33, 34 can be raised simultaneously.

LIST OF REFERENCE NUMBERS

1

lock housing

2

stulp

3

spigot

4

bars

5

bolt head

6

catch slope

7

spigot

8th

blocking element

9

spigot

10

actuating member

11

electric motor

12

swivel axis

13

engine support

14

cassette

15

door

17

upper narrow side wall

18

lower narrow side wall

19

rear wall

20

gap

21

sign

22

sign

23

screw

24

screw

25

screw head

26

screw head

27

thread

28

thread

29

threaded hole

30

threaded hole

31

opening

32

opening

33

pusher

34

pusher

35

grip

36

lower edge of the slider

37

lock cylinder

38

first area

39

second area

40

head Start

41

head Start

42

actuator

43

swivel axis

44

detection element

45

contact strip

46

power strip

Claims (8)

1. A lock arrangement for a door, particularly for a security door, including a security lock disposed in a receiving opening in the door and plates (21, 22) positioned on the door leaf on both sides of the security lock, which are provided with a respective opening (32) through which the key may pass, whereby the opening (32) is covered by a respective slider (33, 34), which is guided on each plate (21, 22), when the key is withdrawn, whereby a detection element (44) is disposed in the lock housing of the security lock to determine the position of the sliders (33, 34), the detection element (44) being connected via a signal line to a central control unit and an actuating element (42) extending between the plates (21, 22), which is supported with a middle section on the detection element (44) and with one end section on one slider (33) and with its other end section on the other slider (34).
2. A lock arrangement as claimed in Claim 1, characterised in that the one end section is supported by means of a pivotal shaft (43) on the one slider (33).
3. A lock arrangement as claimed in Claim 2, characterised in that the other end section rests from above on a projection (41), which is disposed internally on the other slider (34).
4. A lock arrangement as claimed in one of Claims 1 to 3, characterised in that the detection element (44) has a contact which is either open or closed and that the contact is closed when the opening (32) is covered by the slider (33, 34).
5. A lock arrangement as claimed in one of the preceding claims, characterised in that the two plates (21, 22) are connected together by means of at least one screw (23, 24), which bears with its screw head (25, 26) on the one plate (21) and engages with its screw thread (27, 28) formed at its other end in a screw thread (29, 30) in the other plate and that the pivotal shaft (43) of the actuating element (42) is mounted on that plate on which the screw head (25, 26) is supported.
6. A lock arrangement as claimed in one of the preceding claims, characterised by a gripping recess (35) formed externally in the slider (33, 34).
7. A lock arrangement as claimed in one of the preceding claims, characterised in that the detection element (44) is arranged within the lock housing (1) of the security lock.
8. A lock arrangement as claimed in one of the preceding claims, characterised in that the slider (33, 34) has a first region (38) and a second region (39) constructed integrally therewith, whereby the first region (38), which is freely accessible from the exterior, covers the opening (32) whereas the second region (39) is covered from the exterior by the plate (21, 22) and is provided internally with a projection (40, 41), on which the end section of the actuating element (42) rests.

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