EP2716847A2 - Door lock - Google Patents

Abstract

The door lock has a locking unit with a face-plate that is displaced longitudinally and pre-stressed against locking position in which a slide (60) that engages in a recess (94) of a latch bolt (9) is locked, and a release slide (15) that is biased against from the face plate that protrudes in locking position and run-on surface (17) of a blocking device. The longitudinal direction of the face-plate is obliquely extended in control surface (152) on which release slide or the blocking slide is provided.

Description

Technical area

The invention relates to a door lock according to the preamble of claim 1.

State of the art

Such a lock was eg by the DE 3241273 A known.

In this known solution, the blocking device comprises two levers, one of which has a fortress passing through the approach, which is provided with the ramp surface. This lever acts on another, spring-loaded lever, wherein the spring of this lever simultaneously biases the first-mentioned lever, so that its approach is forced out of the forend to the outside. If the approach when closing the door with the strike plate of the door jamb to the plant, the lever is rotated against the bias and thereby also rotates the second lever, which thereby comes with its one leg out of engagement with a stop surface of a recess in the latch bolt and the further Ausschubweg in the direction of the bolt position releases. If the case is withdrawn and the door opened again, the levers are returned to a position in which the approach of a lever protrudes from the forend and the second lever with its one leg comes to rest against the stop surface of the latch bolt and their Ausschubweg limited in the case position.

In this known solution, there is the disadvantage that a considerable number of moving parts is required and for the lever and corresponding axes must be anchored in the walls of the lock housing.

Presentation of the invention

The aim of the invention is to avoid these disadvantages and to propose a door lock of the type mentioned above, which is characterized by a simple structure.

This is achieved by the characterizing features of claim 1 according to the invention. The proposed measures results in a simple construction in which the advantage is given that they has no rotatably or pivotally held parts, but only linear guides, in their production correspondingly large tolerances can be allowed. As a result, a simple production of such a lock is possible.

The features of claim 2 allow a very compact design of a lock according to the invention, with relatively long linear guides can be provided for the release slide and so a very good leadership is possible. In addition, the gate valve on the one hand serve for the blocking device itself in cooperation with the latch bolt and at the same time store and fix the release slide in the lock.

It is particularly advantageous to provide the features of claim 3. This allows in conjunction with a known two-piece latch latch a simple conversion for a left to a right stop and vice versa. For this purpose, it is sufficient to bring the locking slide against the force of the biasing spring biasing spring out of engagement with the trigger slide and then pull it out of the lock and reinsert by 180 °. After the gate valve has been allowed to return to its working position, the trigger slide is securely held in the lock again.

Furthermore, the features of claim 4 can be provided, whereby a secure holding the latch bolt is ensured in the locked position, whereby an undesirable pushing back of the latch bolt by attack on the latch side is directly avoided. This results from the features of claim 5 is a very simple construction.

Brief description of the drawings

• Fig. 1 eine schematische Darstellung eines erfindungsgemäßen Schlosses bei geöffneter Tür, wobei das Schloss außer Kontakt mit einem Schließblech eines Türstocks steht,
• Fig. 2 das Schloss nach der Fig. 1 beim Schließen der Tür, wobei ein Kontakt mit dem Schließblech eines Türstocks gegeben ist,
• Fig. 3 das Schloss nach der Fig. 1 bei vollständig geschlossener Tür und ausgeschobener Riegelfalle,
• Fig. 4 das Schloss nach Fig. 1 bei noch geschlossener Tür und zurückgezogener Riegelfalle,
• Fig. 5 das Schloss nach Fig. 1 beim Öffnen der Tür und zurückgezogener Riegelfalle nachdem das Schloss außer Kontakt mit dem Schließblech eines Türstocks gekommen ist.

The invention will now be explained in more detail with reference to the drawing. Showing:

• Fig. 1 a schematic representation of a lock according to the invention with the door open, wherein the lock is out of contact with a strike plate of a door jamb,
• Fig. 2 the castle after the Fig. 1 when closing the door, taking a Given contact with the strike plate of a doorstep,
• Fig. 3 the castle after the Fig. 1 with the door completely closed and the latch latch pushed out,
• Fig. 4 the castle after Fig. 1 with the door still closed and latch bolt retracted,
• Fig. 5 the castle after Fig. 1 when the door is opened and the latch bolt retracted after the lock has come out of contact with the strike plate of a doorjamb.

Way (s) for carrying out the invention

In the Fig. 1 is the faceplate 1 of a lock according to the invention with this attached by means of screws 3 lock base plate 2, to which a lock cylinder and handle operation, not shown, for actuating a lock push rod 4 with a driver lug 5 are fastened, the driver lug 5 has two driver shoulders 51, 52. The operation can also be done by means of a motor or otherwise.

In this case, the driving shoulder 51 cooperates with a retraction lever 70, which is held pivotably about a housing-fixed axis 71, wherein the retraction lever 70 engages in a recess 72 of the latch bolt 9. The latch bolt 9 is by a spring 110 against the fully extended latch position ( Fig. 3 ).

The retraction lever 70 has a projection 73, on which the driving shoulder 51 comes to rest, when the push rod 4 is actuated or moved upwards.

The second driving shoulder 52 acts on a locking rocker 80, which is pivotally supported on a housing-fixed axis 81 and biased by a spring 82 against an engagement position. In this engaged position, the blocking rocker 80 is pivoted into a recess 83 of the latch 9. This is possible only in the fully extended latch position of the latch bolt 9 and serves to secure the latch position of the latch bolt 9 (FIG. Fig. 3 ).

A provision of the locking rocker 80 is effected by a displacement of the push rod 4, wherein the driving shoulder 52 on a stop surface 84 of the rocker switch 80 comes to rest and the locking rocker 80 is rotated counterclockwise, whereby the locking rocker is pivoted out of the recess 83 and the latch bolt 9 can be withdrawn from its locked position.

The latch bolt 9 is formed in two parts and passes through a breakthrough of the forend 1, wherein the case head 91 is secured by a screw 92 to a case body 93. In this case, the case head 91 can also be rotated by 180 ° attached to the case body 93, so that a conversion of the castle for a right or left stop is particularly easy.

Above the latch bolt 9, a trip slider 15 is slidably held perpendicular to the forend 1, wherein the trigger slide 15, similar to the case head 91, an inclined ramp surface 17 has.

This trigger slide 15 has an opening 151 which at its end closer to the ramp surface 17 has two control surfaces 152 which rise symmetrically to a plane perpendicular to the longitudinal direction of the forend 1 center plane obliquely to the top and bottom of the trigger slide 15.

The opening 151 of the trigger slide 15 is penetrated by a locking slide 60, which engages in its blocking position, against which it is biased by a spring 18, formed in a recess 94 recess of the latch bolt 9 and a on the in Fig. 1 illustrated falling position outgoing pushing the latch bolt 9 blocks.

In this case, the locking slide 60 is provided with a lug 61 which passes through a breakthrough of the forend 1 and serves to raise the locking slide 60 against the force of the spring 18 to bring the locking slide 60 out of engagement with the opening 151 of the trigger slide 15. As a result, the trigger slide 15 can be pulled out of the door lock and rotated by 180 ° back into this, whereby a conversion from right to left stop and vice versa is possible.

The trigger slide 15 is biased by a spring 181 against its extended position.

When the door is open and located in the unlocked position not shown lock cylinder and in the rest position of a door handle, not shown, which results in the Fig. 1 illustrated position of the latch bolt 9 and the trigger slide 15, which is in its extended position. The latch bolt 9 is blocked by the engagement of the locking slide 60 in the recess 94 against further expulsion from the illustrated case position in the fully extended latch position. At the same time, the Ausschiebeweg the trigger slide 15 is limited by the locking slide 60, whereby the trigger slide 15 is held in the lock.

The locking rocker 80 is due to its bias by the spring 82 at the bottom of the latch bolt 9 at.

If the door is closed, the latch bolt 9 and the trigger slide 15 comes into contact with a strike plate of a door frame and are urged against the force of the spring 110, or 181 in the interior of the castle and get into the in the Fig. 2 shown position.

During insertion of the trigger slide 15 in the lock, the control surface 152 of the trigger slide 15 comes to a ramp surface 62 of the locking slide 60 to the plant and pushes against the force of the spring 18 upwards, whereby the locking slide 60 out of engagement with the recess 94 of the latch latch 9 device and this releases. As a result, it is pushed out by the spring 110 into the locking position, wherein the latch bolt penetrates into a recess of the striking plate ( Figure 3 ). At the same time the locking rocker 80 is pivoted due to their bias in the recess 83 and secured the latch bolt 9 in its locked position.

The release slide 15 remains supported with the door closed on the strike plate and therefore held in its depressed position, wherein the stop surface 84 of the locking rocker 80 comes to the driving shoulder 52 of the driver 5 to the plant. ( Fig. 3 ).

The engaging in the recess 72 of the latch bolt 9 retraction lever 70 is rotated when pushing out the latch bolt 9 counterclockwise, causing its approach 73 of the cam shoulder 52 approaches, but not at this comes to the plant.

If the latch bolt 9 by turning the lock cylinder, not shown, or pressing the door handle, not shown, or actuation of a motor or the like, the lock push rod 4, as in the Fig. 4 shown displaced upward, the driver shoulder 52 rotates the locking rocker 80 counterclockwise from the recess 83, so that the locking rocker 80 out of engagement with the latch catch 9 then this in the course of further movement of the lock push rod on the retraction lever 70, in the recess 72 of the latch bolt 9 engages, is withdrawn, wherein the driving shoulder 51 of the driving lug 5 of the lock push rod 4, comes to rest on the shoulder 73 of the retraction lever 70 and thereby entrains it.

As long as the door is still in the closed position of the trigger slide 15 remains in its engaged position ( Fig. 4 )

When opening the door ( Fig. 5 ) the trigger slide 15 out of contact with the strike plate of the door jamb, the trigger slide 15 is pressed by the spring 181 to the outside and the locking slide 60 slides on the control surface 152 of the trigger slide 15 in the direction of the latch bolt 9 and engages subsequently in the recess 94th the latch latch 9 a. As a result, the Ausschiebeweg the latch bolt 9 is limited with their trap position.

If the push rod 4 is moved down again, for example, by returning a door handle to its rest position, the latch bolt 9 is pushed by the spring 110 to the outside, wherein the retraction lever 70 is rotated counterclockwise and the locking rocker 80, by the cam 5 the push rod 4 in the position according to Fig. 4 and 5 was blocked in a pivoted away from the bottom of the latch bolt situation, takes her back in Fig. 1 shown position and is located on the underside of the latch bolt 9. The Ausschiebeweg the latch bolt 9 is due to the engaging in the recess 94 of the latch bolt 9 locking slide 60 with in the Fig. 1 limited trapping shown.

Claims (5)

Door lock with a latch and a latch position having latch bolt (9) which is biased against its extended from the forend (1) of a lock housing latch position and provided with a stop on which cooperates with a held on a door frame strike plate, against a Blocking position biased blocking device rests with the door open and locks the latch (9) against a beyond the case position pushing out, wherein the blocking device has an inclined ramp surface (17), characterized in that the blocking device in the longitudinal direction of the forend (1) displaceable, against its blocking position biased locking slide (60) which engages in blocking position in a recess (94) of the latch bolt (9) and with a trigger slide (15) which is biased against its from the forend (1) projecting blocking position and the ramp surface (17) the blocking device and at least one is provided with a longitudinal direction of the forend (1) inclined control surface (152, 62) which is arranged either on the trigger slide (15) or on the locking slide (60), preferably on both, wherein upon movement the release slide (15) in the direction of the release position of this on the locking slide (60) can be brought into abutment and in consequence of the locking slide on this control surface (s) (152,62) from the blocking position in the release position can be brought, wherein in the release position of the locking slide ( 60) with the latch bolt (9) is disengaged. Door lock according to claim 1, characterized in that the trigger slide (15) has an opening (151) which is penetrated by the locking slide (60), so that the trigger slide is fixed in the housing by the gate valve, and in that an inclined control surface (152) the inner wall of the aperture (151) closer to the forend (1) is arranged and / or an oblique control surface (62) is arranged on the upright side of the locking slide (60) in the region of the upper edge of the aperture (151) of the trigger slide (15) , Door lock, according to claim 1 or 2, characterized in that the Trigger slide (15) has two control surfaces (152) extending symmetrically from the plane perpendicular to the longitudinal direction of the forend (1) extending central plane of the trigger slide (15) to the top and bottom and the locking slide (60) against its bias from the trigger slide (15) is pushed out, wherein a projection (61) of the locking slide (60) engages in an opening of the forend (1). Door lock according to one of claims 1 to 3, characterized in that the latch bolt (9) has a recess (83) into which engages in the fully extended latch position of the latch bolt (9) against the engagement position biased locking member, wherein the locking member of a Mitnehmeransatz (5) a lock push rod (4) of the castle is controllable. Door lock according to claim 5, characterized in that the locking member is formed by a pivotally mounted locking rocker (80).

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