EP2388420B1 - Drive rod operated lock with multiple bolt members - Google Patents

Description

The invention relates to a lock which can be actuated by a connecting rod and has a plurality of locking members. A lock of this type is already known.

The DE 4304214 C2 discloses a lock with a main lock and secondary lock, which are connected to each other via a connecting rod. The main lock has a spring-loaded latch and a lockable bolt, while the secondary lock has a lockable bolt bolt and a swiveling hook bolt. The bolt bolt is moved by a Z-shaped link attached to a connecting rod slide and a link follower engaging therein. It is provided that the hook bolt starts the locking movement with a time delay in relation to the bolt bolt, so that the bolt bolt, which is provided with generous bevels, first brings about a necessary relative alignment of the wing relative to the frame and thus of the hook bolt to the striking plate opening. This results in a reduced actuation force and a simplified movement control of the bolts. The time delay is essentially achieved by a control flank of the pivot bolt directed parallel to the direction of movement of a drive rod slide and a control pin arranged thereon, from which projects a cam located eccentrically to the pivot axis at one end. As a result of this arrangement, the control pin is first guided past the pivot bar when the drive rod is actuated, without causing the pivot bolt to pivot, while the Z-shaped link is designed such that the preliminary movement begins to advance the locking bolt after only a very small idle stroke. As a result, the pivoting movement only begins when the bolt bolt has already been fully advanced.

In contrast to the locking movement, the bolt's opening movement takes place synchronously, so that under certain circumstances large closing forces can occur, especially if the sash is warped or the seals are still new.

From the DE 3924933 A1 the design of a window lock has become known, in which the locking is carried out by means of a drive rod displaceable roller pin, which are assigned to fixed locking plates. In order to keep the required actuation forces as low as possible, the striking plates are arranged in such a way that they come into contact with the rolling pin in a delayed or offset manner. The disadvantage here is that a particularly large stroke of the drive rod is necessary when the lock on all Strike plates should be ensured, since the drive rod as a rigid drive element should already be in engagement with the striker plate in one place or with a roller pin, but not yet in another place or roller pin. Nevertheless, all roller pins must lock in far enough.

The GB 2225607 A shows a handle and key-operated lock, in which two connecting rod slides are guided in a main lock housing and are drive-connected to connecting rods leading to secondary locks. Two lock nuts act on the connecting rod slide so that it can move into its locked position. The bolt can be pre-closed using a cylinder. Unlocking takes place via the cylinder, which on the one hand pulls the bolt back into the lock case after releasing the tumbler and thereby causes the pressure piece to pivot via the bolt, which thereby gets into the pivoting range of the driver of the cylinder and moves upward from it, which pivots a lever that moves the Retracts.

The invention is therefore based on the object of improving a generic lock in such a way that unlocking with lower actuation forces is possible.

To achieve this object, the realization of the features specified in the characterizing part of claim 1 is provided.

The design made in this way simplifies the lock, since the striking plates can be arranged in the known manner and the bolts of the main lock and the secondary locks can be moved synchronously. Only the latch of the main lock remains in engagement, so that any sealing pressure that arises does not affect the bolts, but is initially intercepted by the latch. The number of bars to be moved is reduced.

According to the invention, a driver is provided on the latch tail of the latch, which cooperates with a nut arm of the lock nut. The trap can be set up in the usual way.

In order to be able to use a lock nut that is the same for different configurations of the lock, it is provided that the nut arm is assigned to the latch tail via a fixedly mounted intermediate arm. The intermediate arm may compensate for different dimensions.

In order to use a lock also with a key, an interchangeable pressure piece, which can be operated via a lock cylinder, is provided, which acts on a second nut arm and the drive rod.

In order to achieve the second staggered retraction of the trap, it is provided that the nut arm is spaced from the catch in the pre-closed position of the trap. As a result, a certain pivoting angle of the trigger nut is required before the nut arm interacts with the latch.

Fig. 1

ein Hauptschlosskasten eines Treibstangenschlosses ohne Schlossdeckel in Öffnungsstellung,

Fig. 2

das Schloss nach Fig. 1 mit zurückgeschobener Falle,

Fig. 3

das Schloss nach Fig. 1 zu Beginn einer Wechselbetätigung und

Fig. 4

das Schloss nach Fig. 1 mit zurückgeschlossener Falle

Fig. 5

eine Mehrfachverriegelung mit einem Haupt- und einem Nebenschloss in einer Seitenansicht und

Fig. 6

eine Mehrfachverriegelung in einer Frontalansicht.

Further advantageous configurations result from the drawings. It shows:

Fig. 1

a main lock case of an espagnolette lock without a lock cover in the open position,

Fig. 2

the castle after Fig. 1 with the trap pushed back,

Fig. 3

the castle after Fig. 1 at the beginning of a change operation and

Fig. 4

the castle after Fig. 1 with trap closed

Fig. 5

a multi-point lock with a main and a secondary lock in a side view and

Fig. 6

a multi-point lock in a frontal view.

In the in the Fig. 1 The main lock 1 shown without a lock cover denotes the lock nut with 2 and the latch with 3. While the latch head 4 protrudes in front of a faceplate 5 in the position shown, the latch tail 6 is slidably mounted in the housing 7 perpendicular to the faceplate 5. A leg spring 8 engages the trap tail 6 and acts upon the trap 4 in the position shown. An intermediate arm 11 rests on a driver 10 which is widened in relation to a cylindrical section 9 of the latch tail 6 and to which the leg spring 8 is also assigned.

The lock nut 2 has a first nut arm 12 and a second nut arm 13. The first nut arm 12 lies with its pivoting angle in the area of the latch 3 or the latch tail 6, while the second nut arm 13 forms an exchangeable arm in the exemplary embodiment and is articulated to an alternating pressure piece 14. With an angled end 15, the nut arm 13 engages a drive rod slide 16.

The end 17 of the alternating pressure piece 14 lies in a manner known per se in the pivoting range of a driver of a profile cylinder, not shown here, which is received in the cylinder opening 18. The drive rod slide 16 is at its upper and lower ends Coupling rods 19, 20 coupled, which transmit an actuating movement of the connecting rod slide 16 to the secondary locks, not shown here.

The mode of operation of the lock constructed in this way will now be illustrated on the basis of various switch positions. In the in Fig. 1 shown position, which results for example with an open wing, the latch 3 is advanced by the leg spring 8.

In the Fig. 2 a position is visible in which the latch 3 is displaced back into the housing 7 by a contact with the striking plate on the frame while simultaneously tensioning the leg spring 8. The latch 3 is shifted back so far that the driver 10 almost abuts the rear wall of the housing 7. In the direction of the latch head 4, the nut arm 12 is provided with an edge which runs vertically in the rest position of the latch nut 2, so that the rear of the latch head does not abut the nut arm 12. The drive rod slide 16 lies against the nut arm 13. As a result of the separation of the nut arm 12 from the latch 3 or the latch tail 6, the insertion of the latch 3 does not lead to any movement of the drive rods 19, 20 or the alternating pressure piece 14. The intermediate arm 11 also remains motionless.

If the spring-loaded latch 3 engages in the striking plate opening, it will emerge again from the housing 7 and in front of the face plate 5. The result is in Fig. 1 shown location.

If the main lock is actuated from this by the cylinder, then the alternating pressure piece 14 is moved upward in the drawing. As a result of the direct connection to the connecting rod slide 16, this and the connecting rods rigidly connected to it are carried along directly and the lock nut 2 is also pivoted by the displacement of the alternating pressure piece 14. However, since the nut arm 12 is in the pre-closed position ( Fig. 3 ) the latch 3 is spaced from the driver 10, it is first necessary to bridge a pivot angle 21 of the lock nut 2 before the nut arm 12 interacts with the latch 3.

This empty gear, which does not lead to any movement of the latch 3, has, however, led to a return movement of the locking elements which are directly coupled to the drive rods 19, 20. If the alternating pressure piece 14 is shifted further via the key actuation, which leads to a pivoting movement beyond the pivoting angle 21 on the lock nut 2, then the nut arm 12 acts indirectly on the driver 10 via the intermediate arm 11, and thereby displaces the latch 3.

The fixedly mounted intermediate arm 11 forms a transmission element and increases the path achievable with the nut arm 12 by the nut arm 12 engaging between the pivot bearing 22 and the contact point 11 'of the intermediate arm 11 and the driver 10. This facilitates the design in different configurations of the lock with the same lock nut. The intermediate arm 11 may compensate for the different dimensions. A different arrangement of the pivot bearing 22 is sufficient for this in individual cases. In addition, it is achieved that the pivot angle of the lock nut that is now available to a small extent leads to a complete retraction of the latch.

The FIGS. 5 and 6 show the entire lock 23, which is designed as a multi-point lock in an overview. The main lock 1 and a secondary lock 24 are provided on the faceplate 5. While at least the latch 3 and a bolt 25 are provided in the main lock 1, a swivel bolt 26 and a bolt bolt 27 can be made to lock via the drive rod 20. These are stored in a manner known per se in the secondary lock case 28. A cylinder 29 and key 30 are assigned to the main lock 1. Of course, a further secondary lock can be assigned to the drive rod 20.

The arrangement described in more detail above ensures that the swivel bolt 26 and the bolt bolt 27 are closed prematurely - namely before the latch 3 is withdrawn. Any sealing pressure that may be present, which acts on the bolt bolt and or the swivel bolt and makes it more difficult to retract it, is initially absorbed by the latch 3. In addition, the number of bars moved is reduced.

Claims (3)

1. Drive rod operated lock (23) with multiple bolt elements and a main lock (1) comprising a latch (3) and a bolt (25), with at least one secondary lock and frame-side striking plates assigned to these, wherein the movement of the bolt elements to the striking plate takes place with a time displacement, and wherein a driver (10) is provided at the latch tail (6) of the latch (3), which interacts with a first cam arm (12) of the lock cam (2), and with a bolt (25, 26), wherein the bolt (25, 26) can be moved forwards and backwards by means of a lock cylinder (29) and/or drive rod, wherein an alternating pressure element (14), which can be actuated by means of a lock cylinder, takes effect directly on a second cam arm (13) and on the drive rods (19, 20), characterized in that the first cam arm (12) only interacts with the latch tail (6) after the bridging of a pivot angle (21), such that a retraction movement of the latch (3) of the main lock (1) takes place with a time delay in relation to the bolt elements (26, 27) provided in the secondary lock.
2. Drive rod operated lock (23) according to claim 1, characterized in that the first cam arm (12) is assigned to the latch tail (6) by means of a fixed-position intermediate arm (11).
3. Drive rod operated lock (23) according to claim 2 1, characterized in that the first cam arm (12), in the pre-locking position of the latch (3), is located at a distance from the driver (10).

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