EP2096241B1 - Self-locking auxilliary lock - Google Patents

Description

• einem in oder an einem Türflügel, zum Beispiel an einem Schlossstulp montierbaren Schlossgehäuse,
• einer in dem Schlossgehäuse (verschiebbar) angeordneten Schlosskette bzw. Verriegelungskette und
• zumindest einem Verriegelungselement, zum Beispiel einem Fallenriegel, welches Verriegelungselement mittels der Schlosskette aus einer ausgeschlossenen Verriegelungsstellung in eine eingeschlossene Entriegelungsstellung überführbar ist und umgekehrt,

wobei das Verriegelungselement bei in Schließstellung gelangendem Türflügel selbsttätig in die Verriegelungsstellung überführt wird. Verriegelungseinheit meint im Rahmen der Erfindung insbesondere eine Zusatzverriegelung eines Treibstangenschlosses oder auch ein Zentralschloss eines Treibstangenschlosses. Zusatzverriegelungen einerseits und drücker- und schlüsselbetätigbares Zentralschloss sind in an sich bekannter Weise über Treibstangen miteinander verbunden, sodass im Zuge des Verriegelns üblicherweise nicht nur der im Zentralschloss beispielsweise angeordnet Zentralriegel, sondern auch die in den Zusatzverriegelungen angeordneten Verriegelungselemente ausgeschlossen werden. Verriegelungselement meint im Rahmen der Erfindung folglich einen Riegel, einen Fallenriegel, eine Falle, aber auch einen bei Zusatzverriegelungen häufig verwendeten Schwenkhaken. Ein solches Verriegelungselement soll bei in Schließstellung gelangendem Türflügel selbsttätig in die Verriegelungsstellung überführt werden und folglich selbstständig ausgeschlossen werden, sodass bei zufallendem Türflügel eine automatische Verriegelung erfolgt.The invention relates to a locking unit for a locking system of a door, in particular for a drive rod lock with multiple locking, with

• a lock housing which can be mounted in or on a door leaf, for example on a lock plate,
• a in the lock housing (slidably) arranged lock chain or locking chain and
• at least one locking element, for example a latch bolt, which locking element can be transferred by means of the lock chain from an excluded locking position into an enclosed unlocking position and vice versa,

wherein the locking element is automatically transferred in the closed position reaching door leaf in the locked position. Locking unit means in the context of the invention, in particular an additional locking of an espagnolette lock or a central lock of an espagnolette lock. Additional locks on the one hand and handle and key-operated central lock are connected in a conventional manner via connecting rods, so that in the course of locking usually not only arranged in the central lock central bolt, but also arranged in the additional locking locking elements are excluded. Locking element means in the context of the invention, consequently, a bolt, a latch bolt, a latch, but also a pivot hook frequently used in additional locking. Such a locking element is intended to automatically when in the closed position reaching door be transferred to the locking position and thus be automatically excluded, so that automatically coincident occurs at zufallendem door.

Such automatically locking locking units, for example additional locks, are known in practice. In order to realize the automatic locking, in addition to the actual locking element, a spring-loaded auxiliary latch can be provided, which is pressed to a certain extent in the lock housing in the closed position reaching door and releases the spring-loaded locking element in the course of this actuation stroke, so that the locking element then automatically in the locking position is transferred.

The same applies to one from the DE 38 01 441 C2 Known door lock, in which in addition to the extendable by spring locking elements one or more cooperating with the locking elements auxiliary traps are provided, which protrude in the open position of the door stulpseitig from the lock box housing and reaching into the closed position door by a bezel side located actuator against the spring action in the lock case interior are pressed and thereby triggers a release the locking element switching function. Optionally, in the case of the door lock known so far, a release is also to succeed via a permanent magnet arranged in the frame, which cooperates in the repelling sense with a permanent magnet of opposite polarity arranged in the lock housing, so that a locking can take place. This construction of a center lock or mortise lock inevitably requires the use of two repelling magnets.

A comparable arrangement is from the US 5,377,513 known. There, too, a permanent magnet is arranged in a center lock or mortise frame on the bezel side, which operates on a permanent magnet of opposite polarity in the lock housing, this permanent magnet is disposed on a spring-loaded pivot lever which releases a pawl, so that when the door is closed, a lock can be made. This construction is also relatively expensive.

A locking unit of the type described above is incidentally also from the WO 2004/102007 A1 known. The locking element is designed as a conventional latch, which is excluded in the closing position reaching door, triggered by the latch and a corresponding auxiliary trap.

The invention has for its object to provide a locking unit of the type described above, in particular an additional lock for a espagnolette lock, which ensures a reliable and reliable self-locking in reaching the closed position door leaf in a structurally simple and cost-effective manner.

This object is achieved by a locking unit with the features of claim 1. It is envisaged that the lock chain is held by a locking element in the unlocked position and that in or on one of the locking unit associated door frame side closing bar a release magnet is arranged, which for automatic locking works on the blocking element, that this releases the lock chain, so that the locking element is automatically transferred to the locking position. The blocking element is preferably a linearly displaceable locking pin which is used for unlocking the lock chain is moved in an attractive sense in the direction of the release magnet. For this purpose, the release magnet is designed as a permanent magnet, while the blocking element itself is not permanent magnetic, but is magnetizable. For this purpose, the blocking element is made of a metallic ferromagnetic material, so that it is attracted by the release magnet. The lock chain is guided in a conventional manner in the lock housing parallel to the lock plate and usually vertically displaceable and, for example, as a plate-shaped component, for example as a flat sheet formed.

The invention is initially based on the recognition that a self-locking door lock can be realized in a simple manner, if a trigger magnet is arranged on the frame side and consequently in the region of a closing bar, which operates on a blocking element, which in turn blocks either the independently movable lock chain or this releases. It is expedient if the magnetically actuable locking pin works directly on the lock chain displaceably arranged in the lock housing, since the lock chain is in any case responsible, for example via connected drive rods, for locking and unlocking the locking element. Therefore, if it is in the locking unit to an additional locking of an espagnolette lock, the lock chain is moved by means of the drive rod connected thereto in the course of the operation, for example, the central lock along the Schlossstulpes and the displacement of the lock chain includes the locking element for unlocking. In order not only to enable unlocking via, for example, the central lock and thus the drive rods, but also an automatic self-locking, is provided in the invention that the lock chain from gravity and / or a locking spring from the unlocked position into the locking position can be converted and thus also gravity and / or spring-loaded, the locking element from the unlocked position can be transferred to the locking position. This gravity and / or spring-loaded transfer of lock chain and locking element from the unlocked position in the locked position is prevented (initially) on the locking pin, which - if it is not operated by the magnet - holds the lock chain in the unlocked position by the locking pin against, for example a locking edge or a locking projection of the lock chain is applied or engages under this. It can also be provided a locking recess in the lock chain, in which engages the locking pin. If the locking pin is then actuated by the release magnet and consequently moved in the direction of the release magnet, the locking pin releases this edge or projection and thus the lock chain so that it is transferred (automatically) from the unlocked position into the locking position and onto it Way the bar excludes. An elaborate lever mechanism for the self-release can be dispensed with, if - as in a preferred embodiment of the invention - the locking pin cooperates directly with the lock chain.

According to a further proposal of the invention, the lock chain is coupled via at least one intermediate lever with the locking element. This intermediate lever is preferably designed with multiple arms. It can be designed as pivotable on, for example, the lock housing hinged pivot lever. According to a preferred embodiment of the invention, the intermediate lever is designed as an L-shaped lever, for example, which has at least one first arm associated with the lock chain and a second arm associated with the locking element. This intermediate lever is preferably acted upon by the locking spring, which is formed for example as a leg spring. Within the scope of the invention Consequently, the interaction of locking element, lock chain, intermediate lever and locking element of particular importance. In the course of the release acts on the one hand, the gravity of the lock chain and on the other hand, the spring force of the locking spring, which acts for example on the lock chain or on the intermediate lever, but preferably directly on the locking element.

The locking pin itself is also preferably spring-loaded and is pressed by means of this spring in its basic position, namely in the unlocked position in which it blocks the lock chain in the unlocked position. In the course of the release by the permanent magnet of the locking pin is thus moved against the force of the locking spring.

The construction according to the invention is suitable in a particularly advantageous manner for the self-locking of an additional locking of an espagnolette lock. The locking element is designed as a latch bolt. Always recommends the use of a spring-loaded locking element, which in the context of the invention, however, in the manner described - unlike a conventional latch of a central lock - is secured against reverse, without locking by a key or the like. The reaching in the course of closing the door in the locking position latch bolt or the locking element can therefore not - as for example a conventional latch latch - manually push back, but this must first be done unlocking the central lock.

The locking element, namely the displaceable bolt, may be acted upon by the closing spring and have a beveled actuating edge associated with the closing strip. Even if in the context of the invention, the Self-release is not realized by means of an auxiliary trap, but magnetically, the latch bolt protrudes - similar to a known auxiliary trap - in the unlocked position by a predetermined amount of the lock housing before, so that the latch bolt in the course of closing the door leaf in contact with the closing strip to a predetermined dimension is pressed into the lock housing. Due to the positive coupling between the latch bolt and the lock chain, for example by interposition of the intermediate lever, the lock chain is raised slightly during this pushing back, so that the contact between the blocking edge of the lock chain and the locking pin is released. This facilitates now - since frictional forces between locking pin and lock chain are repealed - the operation of the locking pin on the permanent magnet. The pushing back of the projecting latch bolt in the present case is therefore not - as in the prior art - the actual self-locking, but it is only an auxiliary movement to facilitate the release of the locking pin on the permanent magnet. This in turn means that you can work with relatively low magnetic forces, or that at higher magnetic forces and large gaps between the closing strip and door can be bridged.

The subject of the invention is also an espagnolette lock with at least one central lock and at least one additional lock, wherein in particular such an additional lock can be designed as a locking unit of the type described. In the context of the invention, therefore, not only the locking unit is automatically placed under protection, but also an espagnolette lock with such a locking unit.

Furthermore, the subject of the invention is a locking unit, which on the one hand from such a locking unit (or a drive rod lock with a plurality of locking units) and, on the other hand, a locking bar associated with the locking bar, the triggering magnet being arranged in or on this closing bar.

Fig. 1

ein Treibstangenschloss in vereinfachter Seitenansicht,

Fig. 2

eine erfindungsgemäße Zusatzverriegelung des Treibstangenschlosses nach Fig. 1 in perspektivischer Ansicht,

Fig. 3

den Gegenstand nach Fig. 2 in einer Seitenansicht in einer ersten Funktionsstellung,

Fig. 4

den Gegenstand nach Fig. 3 in einer zweiten Funktionsstellung,

Fig. 5

den Gegenstand nach Fig. 4 in einer weiteren Funktionsstellung,

Fig. 6

den Gegenstand nach Fig. 5 in einer anderen Funktionsstellung und

Fig. 7

eine (rahmenseitige) Schließleiste bzw. ein Schließteil für ein erfindungsgemäßes Treibstangenschloss bzw. ein erfindungsgemäßes Verriegelungsaggregat.

In the following the invention will be explained in more detail with reference to a drawing showing only one exemplary embodiment. Show it

Fig. 1

an espagnolette in a simplified side view,

Fig. 2

an additional locking of the espagnolette lock according to the invention Fig. 1 in perspective view,

Fig. 3

the object after Fig. 2 in a side view in a first functional position,

Fig. 4

the object after Fig. 3 in a second functional position,

Fig. 5

the object after Fig. 4 in another functional position,

Fig. 6

the object after Fig. 5 in another working position and

Fig. 7

a (frame-side) closing strip or a closing part for an inventive espagnolette lock or an inventive locking unit.

Fig. 1 shows an attachable to a door espagnolette lock, which as a locking units 1, 2 on the one hand a central lock 1 and on the other hand, upper and lower additional latches 2, which are fastened to the back of a (common) lock plate 5. In the course of a handle operation and / or a key operation, on the one hand, the central lock 1 is unlocked and on the other hand via the merely indicated drive rods 6 and the additional latches. 2

The central lock 1 may comprise a lock latch, a central latch, a lock nut and a lock cylinder in a manner known per se. Details are not shown.

The actuatable via the espagnolettes 6 additional latches 2 each have a lock housing 22, a displaceable in the lock housing lock chain 4 and also each (at least) a locking element 3, which is formed in the embodiment as a latch bolt 3. In the course of unlocking on the central lock 1, the associated drive rod 6 operates on the attached lock chain 4 of the additional lock 2, which is guided along the Schlossstulpes 5 and consequently displaceable in the vertical direction in the lock housing 22 of the additional lock 2. By means of the lock chain 4, the latch bolt 3 is transferred from an excluded locking position into an enclosed unlocking position and vice versa. The unlocking is usually carried out by actuation of the central lock 2 and consequently via the drive rod 6, which transfers the lock chain 4 from the locking position to the unlocked position. The locking occurs in the espagnolette lock according to the invention or the additional lock 2 according to the invention automatically or automatically, as soon as the door or the door reaches the closed position.

For this purpose, it is provided in the context of the invention that the lock chain 4 is held by a locking element 9 initially in the unlocked position and that in or on one of the locking unit 2 associated door frame side closing strip 7, a release magnet 10 is arranged. This closet side Triggering magnet 10 operates for automatic locking or for an automatic release of the locking element 3 on the locking element 9, which then releases the lock chain 4, so that the locking element 3 is automatically transferred to the locking position. The blocking element 9 is formed in the embodiment as a linearly displaceable locking pin 9, which is moved to unlock the lock chain 4 in an attractive sense in the direction of the release magnet 10 added. The release magnet 10 is designed as a permanent magnet. The associated blocking element 9 itself is not permanently magnetic, but can be magnetized and consequently made of a ferromagnetic material, so that it is attracted by the triggering magnet. It is basically possible to work with a permanent magnetic locking pin to increase the triggering forces. However, the formation of non-permanent magnetic material has the advantage that no unwanted magnetization of the environment of the locking pin takes place. The invention has recognized that it is also possible to work without a permanent-magnetic locking pin, in particular if, as explained below, the triggering is mechanically simplified or relieved. The lock chain 4 itself is on the one hand by gravity and on the other hand (indirectly) via a locking spring 13 from the unlocked position in the locked position transferred as soon as the release magnet 10 moves the locking pin 9 and this releases the lock chain 4. The coupling between lock chain 4 and locking element 3 via an intermediate lever 12, which is designed as pivotable about the axis 15 hinged to the lock housing 22 pivoting lever. In the exemplary embodiment, this intermediate lever 12 or pivot lever is designed as an L-shaped lever. This has a first arm 12 a, which is associated with the lock chain 4 and a second arm 12 b, which is associated with the latch bolt 3. In addition, this intermediate lever 12 (indirectly) of the locking spring 13 acted upon, this locking spring is formed in the embodiment as a leg spring.

Of particular importance in the context of the invention, therefore, the "chain of action" or power coupling between locking element 9, lock chain 4, intermediate lever 12 and latch bolt 3. The upper auxiliary lock 2 is in Fig. 2 shown. The lower auxiliary lock 1 is formed substantially identical, wherein the drive rod is not connected to the underside, but the upper side of the lock chain.

The operation of the espagnolette lock according to the invention or the additional lock 2 according to the invention is based on a comparative consideration of Fig. 3 to 6 be explained.

Fig. 3 shows the lock or the additional lock 2 in a first unlocked operating position, which is realized, for example, when the door or the door is open. In this functional position, the trigger magnet 10 of the closing strip 7 of the frame is far away, so that it does not affect the locking pin 9. This locking pin 9 is on the force of the locking spring 21 in the in Fig. 3 shown basic position pressed. In this basic position, the locking pin 9 engages with its lock-side end a locking projection or a locking edge 11 of the lock chain 4. The locking edge 11 may be formed by a locking projection or a locking recess of the lock chain. Although the locking spring 13 is anxious to push the latch bolt 3 in the locking position, such a lock in the functional position according to Fig. 3 blocked because the lock chain 4 is blocked via the locking pin 9, so that the connected to the lock chain 4 intermediate lever 12 holds the latch bolt 3 on the arranged on the latch extension 3a of the latch bolt actuating cam 3b. Because the Although intermediate lever 12 is pivotally hinged to the lock housing 22, but it has on its first arm 12a a recess, for example, a slot 16, in which an actuating pin 17 of the lock chain engages, so that the locked lock chain 4 at the same time blocks the intermediate lever or pivot lever 12 which presses against the actuating cam 3b of the latch extension 3a via its second arm 12b.

As the additional locking of the closing strip 7 approaches in the course of closing the door, the magnet 10 triggers the automatic locking. For this purpose, first of all the latch bolt 3 is pushed back slightly into the lock housing 22 on contact with the striker bar 7 due to its bevelled actuating surface (latch bevel 14). About the forced coupling between latch bolt 3, intermediate lever 12 and lock chain 4 this leads to the lock chain 4 is raised slightly (see. Fig. 4 ). By this raising the lock chain 4, the contact between the locking pin 9 and the locking edge 11 is released. Now comes in this functional position also arranged on the closing strip 7 release magnet 10 in the vicinity of the locking pin 9, so that the trigger magnet 10, the locking pin 9 against the force of the locking spring 21 attracts. This triggering movement of the locking pin 9 via the magnet 10 is facilitated by the lifting of the lock chain 4 described above, since friction between pin 9 and lock chain 4 is prevented. Once the door is completely closed, the latch 3 enters the area of a corresponding latch receptacle, for example, an opening of the locking bar 7. Thus, the locking pin 9 now releases the lock chain 4, so that the latch bolt 3 on the one hand on the gravity of the lock chain 4 and on the other is transferred via the spring force of the locking spring 13 in the locking position, in which the latch bolt 3 is excluded and engages in the locking receptacle of the locking bar 7 (see. Fig. 5 ).

The embodiment shown in the figures with the projecting in the unlocking latch bolt 3 represents a preferred embodiment of the invention, since the temporary lifting of the lock chain 4, the contact between locking edge 11 and locking pin 9 is released, so that frictional forces are avoided and thus the permanent magnet Locking pin 9 can tighten easily. In this respect, it is possible to work with relatively low magnetic forces in this embodiment. The release according to the invention functions even with a relatively large gap between the lock or lock forend and the closure strip. Usually, gap widths of 2 mm to a maximum of 5 mm are provided. Due to manufacturing tolerances or subsequent changes, it often happens in practice to gap widths of up to 8 mm. Even with these large gap widths, the invention works flawlessly, especially when the functionality of the trigger magnet is improved by the previous release between locking pin and lock chain. In principle, however, it is also possible to work without projecting latch bolt, because in principle there is also the possibility that the release magnet attracts the locking pin when the lock chain rests with its locking edge 11 on the locking pin 9. There must always be appropriate coordination between the forces that occur.

Fig. 6 shows, moreover, a functional position in which the latch bolt 3 (and incidentally, all other bars, not shown, or the like) withdrawn via the pusher, not shown, or a lock cylinder on the central lock and thus the lock or the additional lock is opened. A subsequent locking is then again automatically, as described above.

Finally shows Fig. 7 a plan view of a closing strip 7, which can be used in connection with the locking unit according to the invention. The release magnet 10 is indicated. It can be seen that this closing strip 7 contains a mounting position for a release magnet above and below the latch receptacle 23. This has the consequence that this closure strip model can be used for both the upper and the lower additional locking and also for doors with different opening sense, without the need for different embodiments must be made.

Incidentally, it can be seen in the figures that the latch bolt 3 is guided in a bolt guide or bolt guide sleeve 18, which is preferably made of plastic. Connected to this bolt guide sleeve 18, for example, formed, is a support projection 19, on which the locking pin 9 rests, so that tilting of the locking pin 9 avoided and proper guidance of the locking pin 9 is ensured. The locking pin 9 is mounted with its spring 21 in a guide sleeve 20 and the end of the locking pin is based on the projection 19 from. The travel of the pen is about 1 mm to 5 mm, for example 2 mm to 3 mm.

Claims (16)

1. A locking unit (1, 2) for a locking system of a door, particularly for a drive-rod lock with multi-point locking mechanism, having at least

   - a lock housing (22) which can be mounted on a door wing, for example on a lock face plate (5),

   - a lock chain (4) that can be displaced in the lock housing,

   - and at least one locking element (3), which can be transferred by means of the lock chain (4) from a locked-out locked position into a locked-in unlocked position and vice versa,

   wherein the locking element (3) is automatically transferred into the "locked position" when the door wing reaches the closed position,
   wherein the lock chain (4) is held in the "unlocked position" by a blocking element (9), and
   wherein a trigger magnet (10) is arranged in or on a door-frame-side strike plate (7) assigned to the locking unit (1, 2), which actuates the blocking element (9) for automatic locking in such a manner that the same releases the lock chain, so that the locking element (3) is automatically transferred into the locked position, and
   wherein the locking element (3) is configured as a latchbolt (3) which is loaded by a spring and which projects to a certain extent out of the lock housing (22) in the unlocked position, so that the latchbolt (3) is pushed to a predetermined extent back into the lock housing (22) in the course of the closing of the door wing, upon contact with the strike plate (7) and the lock chain (4) is lifted from the blocking element (9) as a result.
2. The locking unit according to Claim 1, characterised in that the blocking element (9) is constructed as a (linearly) displaceable blocking pin (9).
3. The locking unit according to Claim 1 or 2, characterised in that the blocking element or the blocking pin (9) is moved in the direction towards the trigger magnet (10) in the sense of pulling to unlock the lock chain (4).
4. The locking unit according to one of Claims 1 to 3, characterised in that the trigger magnet (10) is constructed as a permanent magnet.
5. The locking unit according to one of Claims 1 to 4, characterised in that the blocking element (9) is not permanently magnetic, but is magnetisable, for example is constructed from a ferromagnetic metal.
6. The locking unit according to one of Claims 1 to 5, characterised in that the lock chain (4) is arranged in the lock housing (22) such that it can be closed parallel to the lock face plate (5), preferably in a vertically displaceable manner, in the course of unlocking and locking.
7. The locking unit according to one of Claims 1 to 6, characterised in that after being released by the blocking element (9), the lock chain (4) is transferred out of the unlocked position into the locked position by gravity and/or the spring force of a locking spring (13).
8. The locking unit according to one of Claims 1 to 7, characterised in that the lock chain (4) is coupled to the locking element (3) via at least one intermediate lever (12).
9. The locking unit according to Claim 8, characterised in that the intermediate lever (12) is constructed as a pivot lever hinged pivotably on the lock housing (22) for example.
10. The locking unit according to Claim 8 or 9, characterised in that the intermediate lever (12) is constructed as a multiple-armed lever, an L-shaped lever for example, which has at least one first arm (12a) assigned to the lock chain (4) and a second arm (12b) assigned to the locking element (3).
11. The locking unit according to one of Claims 8 to 10, characterised in that the intermediate lever (12) is loaded by a spring, for example by the locking spring (13), which is constructed as a leg spring for example.
12. The locking unit according to one of Claims 1 to 11, characterised in that the locking unit is constructed as an additional locking mechanism (2) of a drive-rod lock, wherein the lock chain (4) of the additional locking mechanism (2) is attached to a drive rod (6) which couples the central lock (1) and the additional locking mechanism (2) to one another.
13. The locking unit according to one of Claims 1 to 12, characterised in that the locking element (3) is constructed as a locking element which is secured against back pressure, for example as a bolt which can be displaced in the lock housing (22).
14. The locking unit according to Claim 13, characterised in that the locking element (3), which is constructed as a latchbolt, is loaded by the locking spring (13) and has a bevelled actuation edge assigned to the strike plate (7).
15. A drive-rod lock having at least one central lock (1) and at least one additional locking mechanism (2), wherein the additional locking mechanism (2) at least is constructed as a locking unit according to one of Claims 1 to 14.
16. A locking assembly, consisting of at least one locking unit (1, 2) according to one of Claims 1 to 14 and at least one strike plate (7) assigned to the locking unit, wherein a trigger magnet (10) for actuation of the blocking element (9) of the locking unit (1, 2) is arranged in or on the strike plate.

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