EP3026201B1 - Additional lock - Google Patents

Description

Technical area

The invention relates to an additional lock for a door or a window, which has an operative connection between a thrust plate of the additional lock with a corresponding control mechanism of a main lock and thus controlled by this, wherein the additional locking comprises a housing with a rotatably mounted therein against its initial position biased locking hook which is rotatable upon impact of a striker pin in a recess of the housing in its locking position.

State of the art

For doors or windows with multiple locks, there are a variety of options for the design of additional locks. In most cases extendable or parallel to the forend slidable latch are used, which engage in corresponding recesses in closing pieces.

Also known are locks with Drehfallenverriegelungen, eg in the DE 102009048839 , which are often used for example in the automotive sector, but also used in conventional door locks. Often locks are provided with a so-called "daytime position", wherein corresponding locks or bolts are locked in the retracted position in the lock, and easy opening and closing of a door is possible at any time. Such functions are often desirable in doors in public buildings or shops. If the door concerned have additional locks, they are usually locked in the open position. An example of such a lock with day position and Drehfallenverriegelung is in the DE 102010049567 A1 shown. The locking takes place either by a handle or by means of a servomotor.

A disadvantage of the known solutions that the function of the case is completely disabled in the day position and thus no support between the closing piece and catch is given. The door can thus be opened without any resistance, which also makes it in unwanted situations, such as wind is easily pushed open. When using rotary latch locks with hinged or sliding doors, the problem is that in the last few millimeters to the striker often greater tolerances exist, since the suspension of the door causes the forend is not one hundred percent perpendicular and thus just when closing the door one certain tightening force of the catch is required to keep the door in the closed position. In conventional locks with daytime position, however, no support would be given by the catch, whereby the door in many situations by their own weight from the striker slide and thus would always be a gap wide open when activated day position.

Brief description of the invention

It is therefore an object of the present invention to provide an additional lock with improved tag position, which eliminates the disadvantages mentioned above, and which is simple and inexpensive to manufacture.

This object is achieved in that the thrust plate is displaceable substantially parallel to the longitudinal axis of the housing, via the operative connection of the main lock of a starting position in an opening position movable and lockable via the main lock in this, and that in the thrust plate is a substantially normal to Moving direction of the thrust plate slidable catch is provided, which is biased by a spring against its extended position, and which is in the opening end position of the thrust plate and in the closed position of the pawl with a locking shoulder of the pawl engaged and this resiliently locked in the closed position. By the above feature, it is possible that the locking hook when closing a door, although by the provided catch in its locked position, but it can be moved back with little effort by overcoming the spring force of the locking catch back to its original position, making the door easy open. This offers the advantage that the Door can not be easily pushed open, for example, by wind or the like, but a user does not have to press a door handle when opening and can press the door with little effort. The force of the spring of the catch can be chosen depending on the application so that the corresponding door securely falls into the lock and at the same time is easy to open.

It is a further feature of the invention that the thrust plate is biased against its locking position and an at least partially obliquely extending to its direction control cam, in which a control pin of a substantially normal to the direction of movement of the thrust plate displaceable locking piece is guided, so in the closed position of the pawl and thus also the closed position of the thrust plate abuts an edge of the locking piece against a shoulder of the locking hook and blocks it from rotating in the direction of the starting position. The opening and locking mechanism of the auxiliary lock with deactivated day position can thus be accomplished by only two linearly moving components which cooperate with the pawl, which on the one hand is very low to manufacture and on the other hand offers a high degree of security.

Furthermore, it is a feature of the present invention that the shoulder of the pawl is formed at least two stages, whereby at least two locking points are created with the edge of the locking piece. Alternatively, the edge of the locking piece can be formed at least two stages. Since a certain delay sets in doors over time or depending on the weather and season, can be done by multi-level locking points in every situation a secure blocking of the auxiliary lock and the resulting tolerances can be compensated.

According to a further feature of the invention, it is provided that the operative connection between the main lock and the thrust plate of the additional locking is formed by a cable, wherein the pulling direction of the cable opposite the bias of the thrust plate. One Structure with cable offers over a conventional construction with push rods the advantage that a much lower effort is necessary. It only needs to overcome the forces of the bias of the thrust plate of the auxiliary lock and no additional forces are expended for lifting a push rod.

It is a further feature of the invention that on the pusher plate at the opposite end of the cable to the main lock another cable is connected to the thrust plate, which is guided out of the housing and is connected to other additional locks on the side facing away from the main lock side of the additional lock , This makes it possible to connect as many additional locks, depending on the application, in series.

Short description of the drawing figures

• Fig. 1 eine perspektivische Ansicht auf eine erfindungsgemäße Zusatzverriegelung mit Schließstück und abgenommenem Gehäusedeckel zeigt;
• Fig. 2 die Zusatzverriegelung aus Fig. 2 in Öffnungsendlage bei aktivierter Tagstellung und mit dem Sperrhaken in Ausgangsstellung zeigt;
• Fig. 3 die Zusatzverriegelung aus Fig. 2 in Öffnungsendlage bei aktivierter Tagstellung in einer Zwischenstellung des Sperrhakens zeigt;
• Fig. 4 die Zusatzverriegelung aus Fig. 2 in Öffnungsendlage bei aktivierter Tagstellung mit in Sperrstellung verrastetem Sperrhaken zeigt;
• Fig. 5 die Zusatzverriegelung aus Fig. 2 in Ausgangsstellung bei deaktivierter Tagstellung zeigt;
• Fig. 6 die Zusatzverriegelung aus Fig. 2 in Sperrstellung zeigt;
• Fig. 7 eine perspektivische Ansicht von einer Seite der Schubplatte zeigt;
• Fig. 8 eine perspektivische Ansicht der anderen Seite der Schubplatte zeigt;
• Fig. 9 eine perspektivische Ansicht des Sperrhakens zeigt und
• Fig. 10 eine perspektivische Ansicht des Sperrstücks zeigt.

The invention will now be described with reference to the accompanying drawings, wherein

• Fig. 1 shows a perspective view of an inventive additional locking with closing piece and removed housing cover;
• Fig. 2 the additional locking off Fig. 2 in opening position with activated day position and with the pawl in the initial position shows;
• Fig. 3 the additional locking off Fig. 2 in opening position with activated day position in an intermediate position of the pawl shows;
• Fig. 4 the additional locking off Fig. 2 in opening position with activated day position with locked in locking position pawl shows;
• Fig. 5 the additional locking off Fig. 2 in home position with day position disabled;
• Fig. 6 the additional locking off Fig. 2 in locked position;
• Fig. 7 shows a perspective view from one side of the pusher plate;
• Fig. 8 shows a perspective view of the other side of the thrust plate;
• Fig. 9 shows a perspective view of the pawl and
• Fig. 10 a perspective view of the locking piece shows.

Description of the embodiments

In the Fig. 1 illustrated additional locking in the form of an additional lock with rotary latch lock has a housing 1, which is shown for better view with remote top plate. In the housing 1 is a pivotally mounted on a rotation axis 24 pawl 2, which against its initial position by means of a spring 4 (see Fig. 2 ) is biased. Parallel to the longitudinal side of the housing 1 is also movable by means of a spring 5 (see Fig. 2 ) arranged against its blocking position biased thrust plate 3. The thrust plate 3 has receptacles 16 for attaching tension cables (not shown), which are led out through openings 17 in the housing 1 and are connected to the main lock or other additional locks. In a further receptacle 20 in the thrust plate 3, a detent 18 is biased by a spring 19 in the direction of locking hooks 2. When closing the door or the window, the additional lock strikes a closing piece 7 with a closing piece pin 6, which thereby in a recess 8 in the housing 1 and in succession in a recess 9 (see Fig. 2 ) enters the pawl 2 while twisting the pawl 2 in its closed position. The striker pin 6 is arranged vertically displaceable to compensate for position inaccuracies of the striker. The inlet slope of the recess 8 of the housing 1 brings the striker pin 6 in the correct position.

In the in Fig. 2 shown position, the thrust plate 3 is in an opening end position in which it can be locked via the cable from the main lock, whereby a day position for the additional lock is achieved. The pawl 2 is in initial position. In the region of the pawl 2 comes in this position a normal to the direction of movement of the thrust plate 3 movable, biased by a spring 19 catch 18 to lie.

Now, if the door or the window is closed, the pawl 2 rotates, whereby the catch 18 is pushed back by a side surface of the pawl 2 against the force of its spring 19 in its receptacle 20, as shown in the Fig. 3 is shown.

Upon reaching the closed position of the pawl 2 according to the Fig. 4 , The catch slides over a locking shoulder 21 on the pawl 2, whereby it is held in this position. When opening the additional lock must be pulled only in the opening direction and the force of the spring 19 of the catch 18 to be overcome, whereupon the additional lock is released. Thus, even in the daytime position, the additional locking mechanism can be used to securely snap the door or window open, whereby opening without the use of a key or a door handle is possible only by mounting the door or the window.

Fig. 5 shows the additional lock Fig. 2 in the starting position when the day setting is deactivated. The thrust plate 3 is pressed by the force of the spring 5 in the direction of locking position, wherein a displaceable normal to the direction of movement of the thrust plate 3 locking piece 11 engages with a control pin 12 in a slot 10 of the thrust plate 3. The link 10 is at least partially arranged obliquely to the direction of movement of the thrust plate 3, whereby the locking piece 11 is pressed in the direction of pawl 2. Since the pawl 2 is in the starting position, the locking piece 11 is located on the side of the pawl 2, whereby the pusher plate 3 can not fully reach the locked position. Now enters a striker pin 6 in the recess 8 of the housing 1, so the pawl 2 begins to rotate against the force of its spring 4 toward the closed position, wherein the striker pin 6 slides in a recess 9 of the pawl 2.

Upon reaching the closed position, as in Fig. 6 is shown, one edge 13 of the locking piece 11 slides over the shoulder 14 of the pawl 2, whereby the pusher plate 3 can continue to move toward locking position 2 in the direction of the closed position and thus the locking piece 11. By concerns of the shoulder 14 of the pawl 2 on the edge 13 of the locking piece 11, the lock is locked. The shoulder 14 may also be formed in multiple stages, wherein in the embodiment shown, a second stage 15 is provided. In the fully closed position, the edge 13 of the locking piece 11 is located on this second Level 15 on. However, since it comes in practice to tolerances, for example by the delay of a door, can be achieved by providing a multi-stage shoulder even with larger tolerances still a safe closed position.

To open the additional lock the cable is actuated via the lock mechanism of the main lock, whereby the thrust plate 3 is pulled against the force of the spring 5. As a result, the locking piece 11 is pulled away from the pawl 2 and releases this over the guided in the gate 10 control bolt, to be able to return to its original position.

The FIGS. 7 and 8 show in detail the thrust plate 3, which has on one side the recesses 16 for suspension of tension cables and the receptacle 20 for the catch 18. On the opposite side is the gate 10 for the control pin 12 of the locking piece 11, and a receptacle 22 for the spring fifth

Fig. 9 shows the locking hook 2, which has a recess 9 for receiving the striker pin 6. Around the axis of rotation 24 around a receptacle 23 for the spring 4 is arranged. In approximately opposite the recess 9 is the shoulder 14 for locking the pawl 2, which has a second stage 15 in the illustrated embodiment.

Finally, in Fig. 10 the locking piece 11 is shown, which is provided with a guide groove 25 which is guided on a corresponding rib in the housing. Furthermore located on the locking piece 11 of the control pin 12 which engages in the control link 10 in the thrust plate 3 and the edge 13, which cooperates with the shoulder 14 and the second stage 15 of the pawl in the locking position.

Claims (5)

1. Additional lock for a door or a window, said additional lock comprises an operative connection between a displacement plate (3) of the additional lock to a corresponding control mechanism of a main lock and consequently can be controlled by said main lock, wherein the additional lock comprises a housing (1) having a locking tab (2) that is rotatably mounted in said housing (1) and is pre-stressed against the starting position of said locking tab (2) and said locking tab (2) is able to rotate into its locking position as a locking piece bolt (6) impinges in a recess (8) of the housing (1), characterized in that the displacement plate (3) can be displaced essentially parallel to the longitudinal axis of the housing (1), can be moved by way of the operative connection by the main lock from a starting position into an opening end position and can be stopped in said opening end position by way of the main lock, and in that a latch (18), which can be displaced in the direction that is essentially normal with respect to the movement direction of the displacement plate (3), is provided in the displacement plate (3), said latch (18) being pre-stressed by means of a resilient element (19) against its extended position, and when the displacement plate (3) is in the opening end position and when the locking tab (2) is in the locking position, said latch (18) is in engagement with a latching shoulder (21) of the locking tab (2) and latches said locking tab (2) in the locking position in a resilient manner.
2. Additional lock according to Claim 1, characterized in that the displacement plate (3) is pre-stressed against the locking position of said displacement plate (3) and comprises a control contour (10) that extends at least in sections at an incline with respect to the movement direction of said displacement plate (3), a control bolt (12) of a locking piece (11) that can be displaced essentially perpendicular with respect to the direction of movement of the displacement plate (3) being guided in said control contour so that, when the locking tab (2) is in the locking position and consequently also the displacement plate (3) is in the locking position, an edge (13) of the locking piece (11) lies against a shoulder (14) of the locking tab (2) and blocks said locking tab from rotating in the direction of the starting position.
3. Additional lock according to Claim 2, characterized in that the shoulder (14) of the locking tab (2) is embodied as having at least two steps, as a result of which at least two locking points are produced with the edge (13) of the locking piece (11).
4. Additional lock according to Claim 2 or 3, characterized in that the operative connection between the main lock and the displacement plate (3) of the additional lock is formed by means of a cable pull, wherein the pulling direction of the cable pull is opposite the direction in which the displacement plate (3) is prestressed.
5. Additional lock according to Claim 4, characterized in that on the displacement plate (3) on the opposite end of the cable pull to the main lock a further cable pull is connected to the displacement plate (3) and said cable pull is guided out the housing (1) and is connected to further additional locks on the side of the additional lock that is remote from the main lock.

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