EP1405972B1 - Locking device, semi-fixed wing of a double door with such a device and a method of mounting - Google Patents

Description

The invention relates to a locking device, as shown in the WO 97/17519 is known. For further details, reference is expressly made to this document. Moreover, the invention relates to a passive leaf provided therewith. Finally, the invention relates to a mounting method for mounting such a locking device on the inactive leaf.

The US 5,328,217 A discloses a locking device for the inactive leaf of a multi-leaf door in which an upper catch is urged spring-loaded in the locking position. On the front side of the inactive leaf a manually operable actuating device is provided, via which the catch can be pulled against its bias in the open position. As can be seen in FIGS. 7b and 7c, the actuating device is formed at least in sections like a spring tongue, wherein a projection for engagement in one of the openings of the sliding plate is provided. At the actuator a push rod is connected, which extends in the over the entire height of the door leaf extending hollow profile and transmits the movement of the actuator to the bolt. In addition, a further bolt is provided at the lower end of the door leaf.

Further, the US 3,617,080 A a locking device for the inactive leaf of a two-leaf door according to the preamble of claim 1, wherein an upper catch is urged spring loaded in the locking position. On the front side of the passive leaf, an actuating device is equipped with two, for example, operable with the fingers sliders. The slides are connected in the interior of the hollow profile via a rope or optionally a rod with the upper catch and with a lower catch.

Finally, the reveals US 137 211 A a locking device in which a latch spring-loaded is urged into the locking position. Furthermore, a manually operable actuating device with a sliding bolt and a recess in a recess is provided on the front side, via which the catch along the Recess can be pulled against its bias in the open position. To fix the catch, the recess has at its ends in each case an expansion into which the bolt is pushed and rotated by about 90 °.

The object of the invention is to provide a comparison with the known version simpler and much cheaper solution.

This object is solved by the features of claim 1. A standing wing provided with the locking device according to the invention, a fire protection door provided therewith and a mounting method for the locking device are the subject matter of the dependent claims.

Advantageous embodiments are the subject of the dependent claims.

The lock according to the invention is a significant simplification of today's known systems. In a preferred embodiment can be dispensed with a determination in the open door state by a double suspension of a push rod or a locking bolt of the locking device. Ie. by translational movement of the slide of the locking bolt (in the following called Schnäpper) pulled into the door leaf and at the same time the spring tensioned in the push rod. When the slider is released, this spring pushes the push rod together with the catch in the starting position back. The catch is in turn resiliently mounted, so that when closing the inactive leaf this is pressed over the inclined plane into the door leaf (Schnäpperfeder is thereby tensioned). If the inactive leaf reaches its closing position, the catch slips as a result of the spring force into a striking plate provided in the frame.

One of the differences over the prior art after the WO 97/17519 This is because the known construction is just a closure with a push rod leading to a drive lock (either up or down). The known construction requires a motor lock for the lower locking rod.

According to an advantageous embodiment, the locking device is housed in a canister or in a central rung of the double-leaf door. By mounting in an attached center rung, the actual wing body of the passive leaf can be arbitrarily designed. Only the front side patch central rung is hollow for receiving the locking device and formed with corresponding frontal and upper side openings.

By a double suspension or in each case a separate biasing device can be a different bias of the catch and actuator can be achieved. This is particularly advantageous if the catch is pressed regardless of the actuator by attacking the frame on the Schnäppersschräge in its Entriegelungslage so that the passive leaf - for example by means of a door closer - locked automatically when closing. For example, the catch can snap back easily when closing the inactive leaf. At the same time it is ensured by the second spring or the like biasing means that the actuator is safely automatically brought back into the closed position after an operation from the unlocked position automatically. For this purpose, the catch is preferably connected to the actuating device via a freewheel or a one-way driver device. For example, this could have a slot in which a pin engages, so that an initiated on the catch Eindrückbewegung of the latch takes place without entrainment of the actuator, with a movement of the actuator in the unlocked position but always entrains the catch.

Preferably, the locking device is divided into at least two modules for ease of assembly and for adaptation purposes. A Schnäpulsmodul comprises in addition to the catch - and possibly a Schnäppergehäuse and possibly a Schnäpperfeder as Schnäppervorspanneinrichtung - a first connecting element which is connected to the catch - optionally via the aforementioned driving device - connected. The second module is formed by the actuating device, which has an actuating member, for example a manually movable slide, and a second connecting element. The second connection element may be formed integrally with the slider. The two modules are preferably detachably connectable to one another via a connection device. The connection device is preferably designed in such a way that the two modules can be connected to one another even when the actuating device is already mounted on the inactive leaf. This allows a mounting method, according to which first the actuator is attached from the front side of the face of the inactive leaf, then the Schnäppermodul is inserted through the upper narrow side, so the top, the passive leaf and then the connecting element of the Schnäppermoduls means of the connecting device to the actuator of Actuator is connected.

The connection device preferably has a thread. Thus, the first connecting element (for example formed by a latching rod) connected to the catch can be connected by turning the latch module when inserted with the actuator of the already mounted actuating device or the second connecting element connected to the actuating element.

The actuating member is preferably housed in a recess of a guide or fastening member to be used for fastening and eventaell for guiding actuating movement of the actuating device in the end face of the passive leaf, such as a slider housing or slider guide device. The recessed arrangement of the run of the wing is not obstructed despite frontal arrangement.

The locking device according to the invention is particularly suitable for fire doors (eg fire protection according to German DIN 4102), ie for doors which reliably prevent fire in a one-sided fire exposure over a certain period of time. Such fire doors usually have to be equipped with a device for automatically closing the doors, for example spring strips or door closers, be equipped. Since the inactive leaf forms an abutment for the aerofoil and in case of fire large mechanical forces act on both wings, a secure hold of the inactive leaf is necessary. For this purpose, elaborate locking devices have been provided. With the locking device according to the invention, the requirements for fire doors with respect to the automatic closing and locking can be met with a significantly simpler design than before.

This is made possible in particular by the frontal actuation of the latch. The frontal arrangement of the actuator simultaneously prevents unauthorized access when the door is closed.

Fig. 1

eine Draufsicht auf eine zweiflügelige Tür;

Fig. 2

den Bereich der oberen zu dem Gehflügel hin gerichteten Ecke eines Standflügels der zweiflügeligen Tür;

Fig. 3

eine perspektivische Ansicht einer Verriegelungsvorrichtung für den Standflügel der zweiflügeligen Tür;

Fig. 4

eine Ansicht wie Fig. 3, bei ein Schnäppergehäuse teilweise weggebrochen dargestellt ist und eine Anschlusseinrichtung zur Verbindung zweier Module der Verriegelungsvorrichtung genauer dargestellt ist;

Fig. 5

einen Horizontalschnitt durch eine zweiflügelige Tür vergleichbar der Tür von Fig. 1;

Fig. 6

eine perspektivische Darstellung der mit der Verriegelungsvorrichtung von Fig. 4 versehenen oberen gehflügelseitigen Ecke des Standflügels der Tür von Fig. 5.

An embodiment of the invention will be explained in more detail with reference to the accompanying drawings. It shows:

Fig. 1

a plan view of a double-leaf door;

Fig. 2

the area of the upper towards the aerofoil directed corner of a passive leaf of the two-leaf door;

Fig. 3

a perspective view of a locking device for the passive leaf of the two-leaf door;

Fig. 4

a view like Fig. 3 is shown partially broken away at a Schnäppergehäuse and a connection device for connecting two modules of the locking device is shown in more detail;

Fig. 5

a horizontal section through a double-leaf door similar to the door of Fig. 1 ;

Fig. 6

a perspective view of the locking device of Fig. 4 provided upper wing-side corner of the passive leaf of the door of Fig. 5 ,

Fig. 1 shows a two-leaf door 1 with a frame 2, a wing 3 and a passive leaf 4. In the frame 2, a door closer (not shown) is housed with closing sequence controller, the two wings 3, 4 in the appropriate order automatically from a opened state in a closed state transferred. In addition, the frame in the upper Zargenholm at the bottom of a strike plate (not shown) with a receptacle for a locking bolt of a locking device 5 of the inactive leaf. The inactive leaf 4 is locked in the frame 2 by means of the locking device 5, which will be described below with reference to FIG Fig. 2 is explained in more detail. The door leaves of the two wings 3, 4 are designed as a door box made of sheet steel and provided with a conventional filling. The door 1 is designed in fire protection training and holds a einseifgen exposure to fire at least 30 minutes.

Fig. 2 shows the detail X of Fig. 1 seen in the direction of the arrows II-II. In Fig. 2 For example, the upper corner of the passive leaf 4 of the double-leaf door 1 directed towards the aerofoil is shown. On the upper side 6 of the locking bolt in the form of a pre-loaded by means of a Schnäpperfeder 7 latch 8 is provided. The catch 8 is connected to a connecting rod 9, which is connected at its other end to an actuating device 11 arranged on the vertical end face 10. The actuator 11 has in the present example as an actuator on a slider 12. The slider 12 is seated here in a channel latch 13. The channel latch 13 forms an actuator attachment means and slider guide means disposed on or in the face 10. This is according to the embodiment Fig. 2 a slide housing 14 designed in a U-shape, as a square tube or rectangular tube. The slide housing 14 is open toward the end, so that the slide 12 can be manually actuated. In this case, the front side 10 is the narrow side of the passive leaf 4 which points in the closed state of the door 1 to the aerofoil 3.

In Fig. 3 a (further) embodiment of the locking device 5 is shown. Here, the locking device 5, the catch 8 with an inclined plane 15, to be fixed to the inactive leaf 4 Schnäppergehäuse 16 for the catch 8, a (short) Schnäpperstange 17 as a connecting rod 9, a connecting rod spring 18, a connecting bracket 19, the actuator 11 with the slider 12 and the slider housing 14.

Both the catch 8 and the actuator are sprung. As a result, both the latch 8 and the actuating device 11 are provided with a biasing device for biasing in the closed position. The catch 8 is displaceable relative to the catch housing 16 and connected via the catch rod 17 with the connecting angle 19 and the slider 12. The catch 8 and the slider 12 are displaceable relative to each other, wherein the displaceability is limited by a stop, not shown. When pulling on the slider 12 this pulls back over the stop and the two connecting elements 17 and 19, the latch 8.

The connecting rod spring 18 biases the catch 8 and the actuator 11 with the slider 12 in the mutual stop. The catch 8 can move back against the prestressing independently of the actuating device 11 into the catch housing 16 when the passive leaf 4 is slammed shut.

In the execution of Fig. 3 the actuator attachment means and slider guide means is formed by a sheet metal 20 to be screwed onto the end face 10 provided with a recess 21. In the recess 21 is a slot 22 through which the slider 12 is connected to the connecting angle 19. The slider 12 is completely received in the recess 21 so that it does not protrude beyond the end face.

In order to ensure the displaceability between slide 12 and catch 8, and the connecting rod 9 and the connecting bracket 19 could be limited to each other and slidably biased by the spring 18 to each other. Preferably, however, a limited displaceability between the connecting rod 9 and the catch 8 itself is provided here. This can thereby easily snap back without the load of the actuator 11 and the connecting rod 9, wherein only the bias of the snap spring 7 is overcome.

The connecting angle 19 has a connecting flange 24, one of which is bent at right angles extending middle part 25 with slot 23 and a cranked end portion 26 which carries the slider 12. The connecting flange 24 is engaged with the free end of the catch rod 17. The slot 23 serves to guide the translational actuation movement of the connection angle 19 on the plate 20th

Fig. 4 shows the arrangement with the Schnäpperfeder 7 and the connecting rod spring 18. In this case, the Schnäpperstange 17 and the connection angle 19 are connected by a detachable connection device 27 to each other. The connection device 27 here has a thread 30 at the free end of the catch rod 17 and a complementary threaded hole in the connection flange 24. The connection flange 24 is used at the same time as an abutment for the connecting rod spring 18, the other end is supported in a manner not shown fixed to the inactive leaf 4.

In Fig. 4 It is clear that the locking device 5 shown there consists of two modules. This is on the one hand by the Schnäppergehäuse 15 with latch 8 and the connected Schnäpperstange 19 formed Schnäppermodul 35 and on the other hand, the actuator 11 with the slider 12, the slide housing 14 and sheet 20 and the connection angle 19. The two modules 35, eleventh are connected by the thread 30 to each other.

In Fig. 5 a preferred mounting location for the locking device 5 is shown. At the in Fig. 5 door 1 shown are the aerofoil 3 and the inactive leaf 4 with corresponding door leaf main bodies 29 constructed. To form the inactive leaf 4, a hollow profile 32 is fastened in the frontal area as a central rung 31. At this hollow section 32, the stops and abutments are designed for the pedestrian wing. In the example shown here, the hollow profile also carries door seals for sealing the middle door gap. The assembly is preferably carried out in this central rung 31, as in Fig. 6 is shown in more detail.

For mounting the in Fig. 4 shown locking device 5, the actuator 11 is first used with the sheet 20 frontally into the central rung 31 and secured by screws 33. The screws 33 engage on the hnenseite of the sheet 20 in the slot 23 for the purpose of leadership. From the top 34 from the Schnäppermodul 35 is then inserted and screwed over the thread 30. Thereafter, the Schnäppergehäuse 16 is attached to the upper side.

LIST OF REFERENCE NUMBERS

1

two-leaf door

2

frame

3

traffic leaf

4

Fixed leaf

5

locking device

6

top

7

Spring (catch spring)

8th

Catches

9

connecting rod

10

front

11

actuator

12

pusher

13

Flush bolt

14

slide housing

15

inclined plane

16

Schnäppergehäuse

17

Schnäpperstange (connecting rod, first connecting element)

18

Spring (connecting rod spring)

19

Connection angle (second connection element)

20

Sheet metal (guide device)

21

deepening

22

slot

23

Long hole

24

flange

25

midsection

26

end

27

connecting device

29

Door leaf base

30

thread

31

middle rung

32

hollow profile

33

screw

34

top

35

Schnäppermodul

Claims (20)

1. Locking apparatus (5) for the fixed leaf (4) of a multi-leafed door (1) with a self-locking function, wherein a latch (8) is spring-loadedly urged into the locked condition, and wherein an operating device (11), which is operable from the narrow side (10), is provided on the narrow side (10) and through which the latch (8) can be pulled into the open position against its pretensioning, wherein the operating device (11) is connected to the latch (8) through an entrainment device in such a manner that the latch (8) is pushable from its locked position into its unlocked position without co-movement of the operating device (11), characterized in that the operating device (11) comprises a manually slidable slider (12) which is connected to the latch (8) through a connecting bar (9) and wherein the latch (8) and the slider (12) are slidable relatively to each other.
2. Apparatus according to claim 1,
   characterized in that the latch (8) is an upper latch (8).
3. Apparatus according to claim 1 or 2,
   characterized in that the slider (12) is arrangeable on or in slider guideway device (20, 14) provided on the narrow side (10).
4. Apparatus according to claim 3,
   characterized in that the slider guideway device is a slider housing (14).
5. Apparatus according to claim 4,
   characterized in that the slider housing (14) is formed by an angled locking bar (13) or a hollow profile (32) which is fit to a door leaf base body (29) for forming a door leaf as a fixed leaf (4).
6. Apparatus according to any one of the claims 3 to 5,
   characterized in that the slider guideway device comprises plate (20) with a slit (22) for guiding the slider, which is to be fixed to the narrow side of the fixed wing.
7. Apparatus according to any one of the preceding claims, characterized by a double spring system (7, 18).
8. Apparatus according to claim 7,
   characterized in that both latch (8) and operating device (11) are spring mounted.
9. Device according to any one of the preceding claims,
   characterized in that the latch (8) is provided with a latch pretensioning device (7) that urges the latch (8) into its locked position and the operating device (11) is provided with an operating device pretensioning device (18) that pretensions the operating device (11) in its closed position.
10. Apparatus according to claim 9,
    characterized in that the pretensioning force of the latch pretensioning device (7) is smaller than the pretensioning force of the operating device pretensioning device (18).
11. Apparatus according to claim 9 or 10,
    characterized in that the latch pretensioning device comprises a latch spring (7) to pretension the latch (8) and the operating device pretensioning device (18) comprises a connecting element spring (18) that pretensions an operating unit (12) of the operating device (11) and/or a connecting element (17, 19) which connects the latch (8) with the operating unit (12) in its closed position.
12. Apparatus according to any one of the preceding claims, characterized in that a connecting element (17) is connected to the latch (8) and the operating device (11) comprises a second connecting element (19) which is connected to an operating unit (12) of the operating device (11) wherein the first and the second connecting element (17, 19) are connectable to each other through a linking device (27) that is engageable in an assembled state.
13. Apparatus according to claim 12,
    characterized in that the first connecting element is a latch bar (17) which is connectable to the second connecting element (19) which is carrying the slider (12) through a screw thread (30).
14. Apparatus according to claim 13,
    characterized in that the second connecting element (19) is moveably guided in a holding element (20) of the operating device which is stationary mountable to the narrow side of the moveable leaf (4).
15. Apparatus according to any one of the preceding claims, characterized in that an operating unit (12) of the operating device (11) is situated within a recess (21) of a fastening member (20), which is stationary fixable on a narrow side of the fixed leaf (4).
16. Fixed leaf of a multi-leafed door,
    characterized by a locking apparatus according to one of the preceding claims.
17. Fixed leaf of claim 16,
    characterized in that a hollow profile is provided on a narrow side area facing a further leaf (3) of the multi-leafed door (1) as an angled locking bar (13) or a middle rail (31), wherein the locking device (5) is arranged in the hollow profile.
18. Fixed leaf according to claim 16 or 17,
    characterized by a door leaf case made of sheet steel or other sheet metal, which is filled with a material which is considerably weaker than the sheet steel or the sheet metal, like honeycomb carton, tube plate, mineral wool or similar insulation material.
19. Fire door with a fixed door leaf according to anyone of the claims 16 to 18.
20. Method for the installation of a locking apparatus (5) according to anyone of the claims 1 to 15 into a fixed leaf (4) according to anyone of the claims 16 to 18,
    characterized by the following order of steps:

    a) fixing of the operating device (11) on the narrow side of the fixed leaf (4),

    b) insertion of the latch (8) with a connecting bar (9) fixed thereto, the connecting bar (9) connecting the latch (8) with the operating device (11) through the upper side of the fixed leaf (4),

    c) fixing the connecting bar (9) to a manually slidable slider (12) connected to the latch (8) through the connecting bar (9) as an operating unit (12, 19) of the operating device (11), such that the operating device (11) is connected to the latch (8) through an entrainment device such that the latch (8) can be pushed from its locking position into its unlocked position without a co-movement of the operating device (11), wherein the latch (8) and the slider (12) are moveable relatively to each other.

Images