EP2725173A2 - Snap lock, in particular for use as additional locking device of a door, of a gate or of a window - Google Patents

Abstract

The lock (8) has a trap head (12) projecting over a trap head tip (17) and pivotally mounted in an extension of a drop-shaped spring-loaded rocker lever (18). The rocker lever is coupled to a check device such that extension of a predetermined driving out stroke is limited by a driving out movement of the rocker lever in a driving out direction. The driving out movement of the rocker lever is allowed in a lock state through an extension stroke in addition to another extension stroke. Locking parts (21, 22) of the check device are articulately connected with the rocker lever.

Description

The invention relates to a Schnäpperschloss, in particular for use as additional locking in the upper region of a coupled with the Schnäpperschloss main lock door, a gate or a window, with a guided in a trap guide case head, wherein the case head dips in the locked state in an opening of a frame-side strike plate ,

Schnäpperschlösser of the aforementioned type are already known from practice. In principle, latch locks are used, for example, in the case of high doors in the upper door area in order to additionally secure them. This is done because thermal differences between the outside and inside of the door leaf can strongly deform this. This may result in leaks that are not desirable in case of fire or smoke. In the currently known Schnäpperschlössern it is such that the case head protrudes from the forend either by 12 mm or 20 mm. The board of 12 mm results from fire protection requirements, while the board of 20 mm is derived from the highest safety class according to DIN 12209.

The known Schnäpperschlösser are driven by the case kinematic of the main castle of the door. This means that in case of a trap board of the case of the main lock of 12 mm usually only a stroke of 12 mm at the additional lock the Schnäpperschlosses is possible. In principle, it is possible to achieve a change via a translation lever design. However, a change in the gear ratio would result in a significant increase in power in the operation of the main lock, which is not desirable. Ultimately, the highest safety class according to DIN 12209 without changing the gear ratio is only possible if the latch bolt of the main lock protrudes 20 mm from the forend, so that there is a Zusatzverriegelungshub for the latch lock also 20 mm when the lock kinematics of the main lock.

Object of the present invention is therefore to provide a Schnäpperschloss available that a large Verriegelungshub, in particular a larger locking stroke than the locking stroke of the main lock allows.

The above object is achieved according to the invention in a snap lock of the type mentioned above essentially that on the case head a rocker lever projecting over the case head tip, in the extension direction spring-loaded rocker arm is pivotally mounted and that the rocker lever is assigned a locking device, the extension movement of the rocker lever in the extension direction limits a given first extension stroke and allows the extension movement of the rocker lever into the locking state beyond the first failure stroke to a second extension stroke.

The invention uses a constructive means for a pivotally mounted, in the extension direction spring-loaded rocker lever with which a locking device is coupled, which allows two states, namely a shorter, first extension stroke and a longer, second extension stroke. The embodiment of the invention, it is readily possible to achieve a 20 mm stroke on Schnäpperschloss at a 12 mm stroke of the main lock. It is understood that, of course, other ratios of the stroke of the main lock and the Schnäpperschloss are possible. All that matters is that the stroke on the latch lock is greater than the corresponding stroke on the main lock, and that without a gear lever construction is used.

It should be pointed out that the present invention is only particularly preferred for use as additional locking in the upper region of a door. In the same way, the present invention can also be used in the upper region of a door or a window. Moreover, the present invention can serve not only as additional locking a door, a gate or a window, so in conjunction with a coupled main lock, but also as a separate horizontal lock on a door, a gate or a window, without any coupling with a Main lock or even a main lock is present. For example, the use of the invention Schnäpperschlosses as horizontal locking a garage door is readily possible.

If, subsequently, the preferred field of use of the present invention, namely as an additional lock in the upper part of a door turned off It should be understood that the same applies to a gate or window.

In a preferred embodiment of the present invention, the locking device has at least one locking piece articulated to the rocker lever. In the preferred embodiment, two locking pieces are ultimately provided, between which the rocker lever is arranged. As a result, a secure operation of the locking device is achieved.

The coupling of the locking piece with the rocker lever is preferably such that a pivoting movement of the rocker lever is converted into a linear movement of the locking piece, wherein the linear movement is preferably perpendicular to the extension direction. It is then preferred that the rocker lever between a first and a second rocker position in the opening of the forend of the associated latch guide is pivotable. In the first rocker position, the locking piece is completely within the guide sleeve of the trap guide. In the second rocker position, the locking piece protrudes laterally out of the guide sleeve at least in regions. Due to the lateral protrusion of the locking piece from the guide sleeve, the locking piece can then fulfill a blocking function, while it releases the movement of the case head in the extension direction in the other position, if it is within the trap guide.

In a particularly preferred embodiment of the invention, the locking piece has a stop which projects laterally out of the guide sleeve in the second rocker position and is provided for engagement with the underside of the forend of the trap guide. By this construction results in an interaction of the stop with the forend to limit the extension movement on the first extension stroke.

So that the case head can be moved in the second rocker position relative to the latch guide against the extension direction, a longitudinal slot for the stop in the laterally projecting state is provided in the guide sleeve of the latch guide. This slot makes it possible that the case head can be moved with the laterally projecting stop of the locking piece relative to the latch guide along the slot.

In a preferred embodiment of the invention, moreover, it is provided that the abutment of the locking piece in the first rocker position abuts against the peripheral edge of the face opening when, moreover, the second extension stroke has been reached. This results in a fixation of the locking piece, so that this can not move in a linear direction. Since the locking piece is coupled to the rocker lever, this also means that the rocker lever is blocked in the first rocker position. In this way, a secure system of the rocker arm on the strike plate can be ensured at the same time deep immersion of the rocker arm in the strike plate.

The spring loading of the rocker lever is preferably achieved in that the case head is connected to a connecting piece which is provided for direct or indirect connection to a drive rod. In this case, located between the connecting piece and the case head at least one spring element, so that the case head is movable relative to the connecting piece in the extension direction. This results in an indirect spring load for the rocker lever. In principle, it would also be possible to act on the rocker lever itself directly via a spring element.

In order to obtain a secure mounting of the rocker lever, the case head has a particular central cut for the rocker lever. Preferably, this is followed by a receptacle for the blocking piece or pieces, which are preferably arranged next to the rocker lever in the receptacle, at the central recess in the case head.

The rocker lever itself preferably has a teardrop shape with an arcuate-section-shaped region hinged in the incision, which ensures pivoting due to its circular arc section shape, and a tapering region projecting beyond the case head tip, which ultimately dips into the strike plate in the locking state.

Other features, advantages and applications of the present invention will become apparent from the following description of exemplary embodiments with reference to the drawing and the drawing itself. In this case, all described and / or illustrated features, alone or in any combination, the subject of the present invention, regardless of their Summary in the claims or their dependency.

Fig. 1

eine schematische Darstellung einer Tür mit einem Hauptschloss und einem Schnäpperschloss,

Fig. 2

eine perspektivische Explosionsdarstellung des erfindungsgemäßen Schnäpperschlosses,

Fig. 3

eine perspektivische Darstellung des Schnäpperschlosses, das in ein Schließblech eingreift,

Fig. 4

eine Darstellung des Schnäpperschlosses in Verriegelungsstellung,

Fig. 5

eine Schnittansicht des Schnäpperschlosses aus Fig. 4 entlang der Schnittlinie IV-IV aus Fig. 4,

Fig. 6

eine Ansicht des Schnäpperschlosses mit sich aus der Verriegelungsstellung zurückbewegendem Fallenkopf,

Fig. 7

eine Schnittansicht des Schnäpperschlosses aus Fig. 6 entlang der Schnittlinie VII-VII aus Fig.6,

Fig. 8

eine Ansicht des Schnäpperschlosses, wobei der Wippenhebel unter Einfluss des Schließbleches in die zweite Wippenstellung bewegt worden ist,

Fig. 9

eine Schnittansicht des Schnäpperschlosses aus Fig. 8 entlang der Schnittlinie IX-IX aus Fig. 8,

Fig. 10

eine Ansicht des Schnäpperschlosses beim Verlassen des Schließblechs,

Fig. 11

eine Ansicht des Schnäpperschlosses aus Fig. 10 entlang der Schnittlinie XI-XI aus Fig. 10,

Fig. 12

eine Ansicht des Schnäppperschlosses, bei dem der Wippenhebel außer Eingriff mit dem Schließblech ist,

Fig. 13

eine Ansicht des Schnäpperschlosses aus Fig. 12 entlang der Schnittlinie XIII-XIII aus Fig. 12,

Fig. 14

eine Ansicht des Schnäpperschlosses beim Schließen der Tür, wobei der Fallenkopf mit dem Schließblech in Kontakt kommt,

Fig. 15

eine Ansicht des Schnäpperschlosses aus Fig. 14 entlang der Schnittlinie XV-XV aus Fig. 14,

Fig. 16

eine Ansicht des Schnäpperschlosses beim Schließen der Tür, wobei der Wippenhebel vom Schließblech in die erste Wippenstellung gestellt worden ist,

Fig. 17

eine Ansicht des Schnäpperschlosses aus Fig. 16 entlang der Schnittlinie XVII-XVII aus Fig. 16,

Fig. 18

eine Ansicht des Schnäpperschlosses mit in das Schließblech eingreifendem Fallenkopf in der Verriegelungsstellung und

Fig. 19

eine Schnittansicht des Schnäpperschlosses aus Fig. 18 entlang der Schnittlinie XVIV-XVIV aus Fig. 18.

It shows:

Fig. 1

a schematic representation of a door with a main lock and a Schnäpperschloss,

Fig. 2

an exploded perspective view of the Schnäpperschlosses invention,

Fig. 3

a perspective view of Schnäpperschlosses, which engages in a strike plate,

Fig. 4

a representation of the latch lock in the locked position,

Fig. 5

a sectional view of the Schnäpperschlosses Fig. 4 along the section line IV-IV Fig. 4 .

Fig. 6

a view of Schnäpperschlosses with falling back from the locking position case head,

Fig. 7

a sectional view of the Schnäpperschlosses Fig. 6 along the section line VII-VII from Figure 6 .

Fig. 8

a view of the latch lock, wherein the rocker lever has been moved under the influence of the strike plate in the second rocker position,

Fig. 9

a sectional view of the Schnäpperschlosses Fig. 8 along the section line IX-IX Fig. 8 .

Fig. 10

a view of Schnäpperschlosses when leaving the strike plate,

Fig. 11

a view of the Schnäpperschlosses Fig. 10 along the section line XI-XI Fig. 10 .

Fig. 12

a view of the Schnäppperschlosses, in which the rocker lever is out of engagement with the strike plate,

Fig. 13

a view of the Schnäpperschlosses Fig. 12 along the section line XIII-XIII Fig. 12 .

Fig. 14

a view of the Schnäpperschlosses when closing the door, the case head comes into contact with the strike plate,

Fig. 15

a view of the Schnäpperschlosses Fig. 14 along the section line XV-XV Fig. 14 .

Fig. 16

a view of the Schnäpperschlosses when closing the door, the rocker lever has been set by the strike plate in the first rocker position,

Fig. 17

a view of the Schnäpperschlosses Fig. 16 along the section line XVII-XVII from Fig. 16 .

Fig. 18

a view of the latch lock with engaging in the strike plate case head in the locked position and

Fig. 19

a sectional view of the Schnäpperschlosses Fig. 18 along the section line XVIV-XVIV Fig. 18 ,

In Fig. 1 a door 1 is shown, which is posted on one side over two hinges 2, 3 and on its other side a main lock 4. The main lock 4 is associated with a pusher 5 to actuate a case 6 of the main lock 4. With the main lock 4 is coupled via a drive rod 7 a latch lock 8, which is provided as an additional lock in the upper door region of the door 1.

It may be expressly stated at this point that in the present case only the use of the latch lock 8 in the upper door region of a door 1 is described. This is a preferred embodiment. However, the Schnäpperschloss invention can be used in the same way in the upper part of gates or windows. In this respect, the preceding and following statements are likewise to be understood in relation to gates and windows.

In the Fig. 2 and 3 this is shown with a provided in the frame 9 of the door 1 strike plate 10 cooperating latch lock 8. The latch lock 8 has a guided in a case guide 11 case head 12.

The trap guide 11 has a face plate 13 which runs parallel to the strike plate 10 in the installed state and has attachment openings 14, 15 at the end and a central trap opening 16. At the bottom, the clasp 13 is adjoined by a case sleeve 16a within which the case head 12 is guided. The trap sleeve 16a has on opposite sides in each case a slot 16b. The case head 12 has a case head tip 17 on which a rocker lever 18 is mounted. The rocker lever 18 is located in an incision 19 of the case head tip 17. The recess 19 opens down into a receptacle 20, provided in the two locking pieces 21, 22 of a locking device, which are coupled to the rocker lever 18. The rocker lever 18 is mounted on the case head tip 17 via a mandrel, in particular a knurled mandrel 23. For this purpose, corresponding openings 24, 25 are provided on the rocker lever 18 and on the case head tip 17. The locking pieces 21, 22 are connected via a mandrel, in particular a knurled mandrel 26 with the rocker arm 18, wherein a corresponding slot opening 27 is provided on the case head tip 17.

To the case head 12, a connector 28 connects. Between the connector 28 and the case head 12 is a spring element 29, in particular in the form of a helical spring. The coil spring is received in a blind hole 30 of the case head 12, in which the connector 28 is immersed. The outer diameter of the connecting piece 28 is thus smaller than the inner diameter of the blind hole 30. To connect the connecting piece 28 with the case head 12 is a pin, in particular a clamping pin 31 which is guided by corresponding slots 32 of the case head and a corresponding bore 33 of the connecting piece 28 , Thus, the case head 12 relative to the connecting piece 28 in and against the spring force of the spring element 29 along the slot 32 is relatively movable. Downwardly adjoins the connecting piece 28 a clamping bush 34, which serves to receive a drive rod 7. It is understood that the drive rod 7 can also be connected directly to the connector 28.

Hereinafter, the operation of the invention Schnäpperschlosses 8 on the basis of Fig. 4 to 19 received. It should be noted that in the aforementioned figures ultimately a mounting situation is shown, which has been dispensed with the representation of the door frame and the door.

In the 4 and 5 is the snap lock 8 in the locked position. The second extension stroke has been reached. The rocker lever 18 is in the first rocker position and engages a maximum in the striking plate opening 35 a. In the illustrated embodiment, the case head 12 is extended with the rocker lever 18 by 20 mm. The door 1 is closed and locked via the main lock 4. The two blocking pieces 21, 20 arranged next to the rocker lever 18 abut against the marginal edge 36 of the latch opening 16 of the forend 13. This leads to a blocking of the rocker lever 18 in the first rocker position. In this position, the rocker arm so that a fixed component and thus a rigid extension of the case head tip is. In addition, illustrates the Fig. 5 in that the case head 12 is extended maximally in relation to the connecting piece 28. The mandrel 31 is located at the lower end of the slot 32.

In the 6 and 7 sets the opening process of the door 1 and thus also the Schnäpperschlosses 8. About the drive rod 7 of the case head 12 is down, ie moved in the direction of arrow A. The rocker arm 18 is pulled something out of the strike plate, where it still remains in the first rocker position. The movement in the direction of arrow A causes the locking pieces 21, 22 come out of engagement with the peripheral edge 36 of the latch opening 16 of the forend 13. In this case, the lock of the rocker lever 18 is deactivated. In the illustrated embodiment, the deactivation of the rocker lock takes place after a downward stroke in the direction of arrow A of 4 mm.

The 8 and 9 show a position in which the case head 12 has been moved even further in the direction of arrow A. The movement takes place relative to the striking plate 10 and the trap guide 11. The rocker arm 18 is further drawn into the trap guide 11, but still protrudes into the opening 35 of the strike plate 10 into it. In the in the 8 and 9 state shown is the predetermined by the main lock 4 Endhub, which is for example 12 mm achieved. It starts the opening process of the door 1. This results in particular Fig. 9 by the staggered representation of the striking plate 10th and the forend 13. Since the door 1 is moved relative to the frame, the rocker arm 18 is pressed by the strike plate 10 in the second rocker position, which in the 8 and 9 is shown. The pivoting movement of the rocker lever - in Fig. 9 counterclockwise - leads to a linear movement of the locking pieces 21, 22. The implementation of the pivoting movement in a linear movement is possible because the storage of the rocker arm 18 is offset from the storage of the locking pieces 21, 22. By the linear movement of the locking pieces 21, 22 in the direction of arrow B, which is perpendicular to the direction of arrow A, the locking pieces 21, 22 are moved laterally outwardly and protrude respectively with a stop 37 from the inner region of the guide sleeve 16a. In the laterally projecting state, the stops 37 protrude into one of the oblong holes 16b.

In the 10 and 11 a state is shown in which the door 1 has been further pivoted relative to the frame 9 and the case head 12 has been moved by the strike plate 10 even further into the trap guide 11 in the direction of arrow A. The pushing of the case head 12 by the contact of the rocker arm 18 with the strike plate 10 leads to a relative movement of the case head 12 relative to the connecting piece 28 against the spring force of the spring element 29. The mandrel 31 moves within the slot 32 upwards. Since the rocker lever 18 is in the second rocker position, the locking pieces 21 are extended and the stops 37 protrude into the slot 16b.

The FIGS. 12 and 13 show a state in which the case head 12 is disengaged from the strike plate 10. The door 1 has thus been pivoted in the region of the latch lock 8 from the frame area. As soon as the rocker arm 18 located in the second rocker position is out of engagement with the striking plate, the head 12 is driven upward in the direction of arrow C and thus in the opposite direction to the direction of arrow A, which corresponds to the direction of extension, due to the spring force of the spring element 29 Strikes stop 37 on the bottom 38 of the forend 13. This results in a limitation of the upward movement on the first Auffahrhub.

The FIGS. 14 and 15 show a state when closing the door 1, wherein the strike plate 10 comes into contact with the case head tip 17. For this purpose, the case head tip has a run-on slope 39, which lies below the underside 40 of the strike plate 10 in the position of the first extension stroke. The rocker lever 18 is still in the second rocker position during this time. In this case, the case head 12 is held in the position of the first extension stroke via the stop pieces 21, 22 abutting the forend 13. During this state and incidentally also during the other states, the distance of the striker plate 10 to the forend 13 in the illustrated embodiments is 4 mm.

The FIGS. 16 and 17 show a state in which the door 1 has been moved a little further towards the frame 9 in the closed position. The run-on slope 39 of the case head tip 17 has continued its movement along the striker plate 10, wherein the rocker lever 18 has been moved from the second rocker position to the first rocker position. This displacement of the rocker lever 18 from the second to the first rocker position has led to a linear movement of the locking pieces 21, 22 in the direction of arrow D, so that the stops 37 are located within the guide sleeve 16 a.

So that the rocker lever 18 can perform the pivoting movement on the one hand and the interaction with the striking plate 10 on the other hand, the rocker lever 18 has a teardrop shape. The arcuate section-shaped region of the rocker lever 18 is located in the recess 19 and is articulated there, while the tapering region projects beyond the case head tip 17. The drop shape is such that the run-on slope 39 of the case head tip 17 continues at the tapering region of the rocker lever 18.

For the sake of clarification, it should be noted that in the case of FIGS. 16 and 17 shown state of the pushers of the main lock 4 is depressed, the latch lock 8 has thus been moved in the direction of arrow A. If the pusher 5 is not moved, it follows, as far as the position and arrangement of the rocker lever 18, the same position. However, the case head 12 has then been moved relative to the connector 28 in the direction of arrow A down. The compressed spring element 29 then compensates for the lack of downward movement of the connecting piece 28.

The FIGS. 18 and 19 illustrate the closed state of the door 1, in which the case head 12 completely immersed in the strike plate 10 with locked rocker arm 18. The locking position in the second extension stroke is thus achieved. It then results in the situation according to the 4 and 5 ,

Finally, it should be noted that the latch lock 8 as such, in principle, even without coupling to a main lock or without main lock can apply at all, as a separate horizontal lock on a door, a gate or a window.

LIST OF REFERENCE NUMBERS

1 door 33 drilling 2 hinge 34 terminal Block 3 hinge 35 Strike plate opening 4 main lock 36 edge 5 handle 37 attack 6 Cases 38 bottom 7 driving rod 39 approach ramp 8th Schnäpperschloss 40 bottom 9 frame 10 striking plate A direction 11 case management B direction 12 drophead C direction 13 stulp D direction 14 fastening opening 15 fastening opening 16 case opening 16a guide sleeve 16b Long hole 17 Case head tip 18 rocker lever 19 incision 20 admission 21 locking piece 22 locking piece 23 Rändeldorn 24 opening 25 opening 26 Rändeldorn 27 Slot opening 28 joint 29 spring element 30 Blind hole 31 dowel pin 32 Long hole

Claims (10)

Snap lock (8), in particular for use as additional locking in the upper region of a door (1), a gate or a window having a main lock (4) coupled to the latch lock (8), with a latch head (12) guided in a latch guide (11) ), wherein the latch head (12) in the locked state dips into an opening (35) of a frame-side striking plate (10),
characterized,
that on the case head (12) over the case head tip (17) projecting, spring-loaded rocker lever (18) is pivotally mounted in the extension direction and that with the rocker lever (18) is coupled a locking device, the extension movement of the rocker lever (18) in the extension direction to a limited first extension stroke and the extension movement of the rocker lever (18) allows up to the locking state on the first extension stroke out to a second extension stroke. Catch lock according to claim 1, characterized in that the locking device has at least one locking piece (21, 22) articulated to the rocker lever (18). Catch lock according to claim 1 or 2, characterized in that the locking piece (21, 22) is connected to the rocker lever (18) such that a pivoting movement of the rocker lever (18) is converted into a linear movement of the locking piece (21, 22). Catch lock according to one of the preceding claims, characterized in that the rocker lever (18) has a first rocker position, wherein the locking piece (21, 22) is within the guide sleeve (16a) of the latch guide (11), and a second rocker position, at the locking piece (21, 22) protrudes at least partially from the guide sleeve (16 a). Snap lock according to one of the preceding claims, characterized in that the locking piece (21, 22) has a stop (37) which, in the second rocker position, abuts against the underside (38) of the forend (13) of the latch guide (11) the first extension stroke is provided. Snap lock according to one of the preceding claims, characterized in that a longitudinal slot (16b) for the stop (37) is provided in the guide sleeve (16a) of the latch guide (11). Snap lock according to one of the preceding claims, characterized in that the stop (37) of the locking piece (21, 22) abuts in the first rocker position on the peripheral edge (36) of the face opening (16) and the rocker lever (18) in the first rocker position Reaching the second extension stroke locks. Catch latch according to one of the preceding claims, characterized in that the latch head (12) is connected to a connecting piece (28) for connection to a drive rod (7), wherein between the connecting piece (28) and the latch head (12) at least one spring element ( 29) is provided and the case head (12) relative to the connecting piece (28) is movable in the extension direction. Catch lock according to one of the preceding claims, characterized in that the case head (12) has a particular central cut (19) for the rocker lever (18). Catch lock according to one of the preceding claims, characterized in that the rocker lever (18) has a teardrop shape with a circular-arc-section-shaped region hinged in the incision (19) and a tapered region projecting beyond the case-head tip (17).

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