EP2865831B1 - Lock - Google Patents

Description

Technical area

The invention relates to a lock according to the preamble of claim 1, and as for example from EP 1 624 140 A2 known.

State of the art

In such locks, a latch lever is provided, which is taken along with a displacement of the push rod in the direction of the open position of the locking elements of the push rod and pivoted, whereby the case is withdrawn. This results in the problem that tolerances are inevitable in the production of the required items. As a result, problems can arise in such a way that the latch of the multi-point lock can not be completely withdrawn, since after complete retraction of the trap no further stroke for the push rod remains, resulting in corresponding problems in the operation of such a multi-point lock.

Brief description of the invention

The aim of the invention is to avoid this disadvantage and to propose a lock of the type mentioned that allows for larger tolerances proper operation of a multiple locking.

This is achieved by the characterizing features of claim 1 according to the invention.

By the proposed measures it is ensured that, at a / already located in the retracted end position trap or latch bolt, latch or pivot bolt, the push rod can still be moved to the spring travel of this interacting with the latch lever to the over the push rod to be able to completely pull in the controlled additional bar. It is understood that the additional bolts can also be configured as desired.

Furthermore, at a due to higher on the case, or the latch bolt, bolt or pivot bolt, acting lateral forces occurring terminals of the latch in the closed position, the push rod to the spring travel are moved, after which given by overcoming the spring travel of the spring-trained arm of the latch lever stop secure entrainment of the case or the latch bolt is ensured. In this case, the spring-trained arm of the latch lever goes back to its normal position after releasing the clamp.

Due to the spring travel of the push rod, or with their driver, cooperating arm of the latch lever relatively large tolerances can be allowed in the production of the individual parts of a lock according to the invention, without thereby causing problems when using the lock.

According to a further feature, the features of claim 2 may be provided. In this way, results in a very simple construction, which also results in a correspondingly small spring travel and after overcoming the predetermined by the slot travel a secure stop and thus secure entrainment of the remaining latch lever is ensured.

In this context, it is advantageous to provide the features of claim 3, which can achieve a very favorable spring characteristic.

Short description of the drawing figures

• Fig. 1 ein erfindungsgemäßes Schloss mit ausgeschobenem Fallenriegel und der Schubstange in der Sperrstellung von Zusatzriegeln,
• Fig. 2 das Schloss nach der Fig. 1 mit vollständig zurückgezogenem Fallenriegel, wobei sich die Schubstange in einer den zurückgezogenen Zusatzriegeln entsprechenden Stellung befindet, und
• Fig. 3 das Schloss nach den Fig. 1 und 2 mit in einer Endstellung befindlicher Schubstange, wo der verbleibende Hub des Federwegs des Fallenhebels mit verwendet wird.

The invention will now be explained in more detail with reference to the drawing, wherein the description is limited to the essential parts of the invention. Showing:

• Fig. 1 an inventive lock with ejected latch bolt and the push rod in the locked position of additional bolts,
• Fig. 2 the castle after the Fig. 1 with fully retracted latch bolt, wherein the push rod is in a position corresponding to the retracted auxiliary bolts, and
• Fig. 3 the castle after the Fig. 1 and 2 with in an end position located push rod, where the remaining stroke of the spring travel of the latch lever is used with.

Description of the embodiments

The lock is shown with removed housing cover. In a housing 1, a link 2 is guided, which connects two parts of a push rod 3, whose drive is not shown and, for example. can be done via a lock cylinder or a nut with a corresponding gear.

In the housing 1 further a latch bolt 4 is held substantially perpendicular to the push rod 3 slidably. In this case, the latch bolt 4 by a latch spring 5 against his in the Fig. 1 shown biased position shown, wherein the latch spring 5 is held on a pin 6 fixed in the housing 1.

An about an axis 7 rotatably held latch lever 8 engages with an arm 9 in a groove 10 of the latch bolt 4 and is therefore taken in Ausschieberichtung of the latch bolt 4 of this and in turn takes the latch bolt 4 in the insertion direction of the latch bolt 4 against the force of the latch spring fifth With.

A second arm 11 of the latch lever 8 is applied to a driver 12 of the link 2, which is thus moved with the push rod 3. This second arm 11 of the latch lever 8 has an open-edged slot 13 which, as shown, extends as far as a bore 14 for receiving the axle 7. The slot can be guided, as shown, also kinked. This results in a spring action on the connecting portion 15 of the two arms 9, 11 of the latch lever 8. The spring constant of the two divided by the slot 13 parts of the arm 11 is higher than that of the latch spring 5, but as low as possible to a liquid use of entire hubs of the castle to allow.

If the push rod 3 is displaced upward in the direction of the arrow 16, then the latch lever 8 is pivoted clockwise about its arm 11 engaging on the catch 12 and pulls the latch bolt 4 back against the force of the latch spring 5 via its arm 9 (FIG. Fig. 2 ).

In this case, the path of the push rod 3 is not sufficient for the complete retraction of the latch bolt 4, to completely withdraw the additional bar, not shown, also shown by the push rod 3, the push rod 3 to the way the width of the Slot 13 of the arm 11 of the latch lever 8 are moved further ( Figure 3 ). As a result, manufacturing tolerances can be easily compensated.

If it comes to a clamping of the latch bolt 4 in the closed position due to higher acting on the latch bolt 4 lateral forces, so it comes with a movement of the push rod 3 in the direction of arrow 16 (FIG. Fig. 1 and 2 ) To open the lock first to a compression of the slot 13 in its outer region until the two separated by the slot 13 parts of the arm 11 abut each other in the outer regions and a secure entrainment of the arm 11 of the latch lever 8 takes place. As a result, the latch lever 8 is pivoted and the latch bolt 4 is retracted in each case. As soon as the return movement of the latch bolt 4 starts and the clamping effect is released, the force required for the retraction of the latch bolt is reduced and the slot 13 opens again due to the larger spring constant. If, when the retracted end position of the latch bolt 4 is reached, an overstroke for the complete retraction of the additional bolt controlled by the push rod 3 is required, this overstroke is available again by compressing the slot 13.

Claims (3)

1. Lock for a multipoint locking system having a latch lever (8) for actuating a latch that is spring-loaded against the pushed-out position of said latch by means of a latch spring (5), or a latch bolt (4), locking bolt or pivot latch, wherein the latch lever (8) that is held in a rotatable manner about a pivot (7) comprises two arms (9, 11) of which one arm (9) cooperates with the latch (4) and the other arm (11) cooperates with an attachement (12) of the thrust rod (3), characterised in that an arm (11) of the latch lever (8) is embodied in a resilient manner and the resilient constant of said arm is greater than that of the latch spring (5).
2. Lock according to Claim 1, characterised in that the arm (11) of the latch lever (8) cooperating with the attachement (12) of the thrust rod (3) comprises a slot (13) that is open on the edge and divides this arm (11) at least in its outer region and as a consequence said arm is embodied in a resilient manner.
3. Lock according to Claim 2, characterised in that the slot (13) extends up to the hole (14) of the latch lever (8) receiving the pivot(7).

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