EP0952282B1 - Door lock with actuation and key - Google Patents

Abstract

A door lock for a switching cubicle is described. The key-action has a guide wall defining an opening for the key, which corresponds in shape. The guide wall of the key-action has at least one groove extending in the plug-in direction of the key (11) and open at the plug-in end. On the plug- in side is a window-like opening to accommodate a guide shoulder (18) mounted on the key so as to be projecting radially. The guide shoulder has a limb (20) that is formed by an undercut running in the plug-in direction. With its free end it projects radially over the shoulder like a spring. When the key is pushed into the key-action, the limb can be pressed into the contour of the shoulder and can be broken off from it. When the key has been pushed in, the limb can be engaged in catch fashion in the window-like opening.

Description

The invention relates to a door lock, in particular for a control cabinet with one in one Lock housing stored and from a Socket wrench to be engaged for the closing member of the door lock, the Actuation of the insertion opening for the appropriately trained socket wrench defining and enclosing guide wall having.

A door lock with the aforementioned features is in described in DE 33 16 834 C2; in the in the Lock housing rotatably mounted actuation is a Socket wrench insertable, the actuation being a the recess adapted to the shape of the socket wrench Has insertion opening for the socket wrench in the described in DE 33 16 834 C2 Embodiment designed as a double bit key is. Other key shapes like triangular or Square keys are also common. So far it is known with such door locks, the respective socket wrench for operating the Insert the door lock and in the Non-use position from the associated actuation in practice, there is also Unreleasable connection requirement between socket wrench and actuation, however such an inseparable connection in the Delivery of the door lock and its assembly is still distracting.

The invention is therefore based on the object Door lock with the generic features for To make available an unsolvable, only at the assembly of the door lock Connection of actuation and socket wrench given should be, and optionally one to operate the Door lock by inserting the socket key Detachable connection of socket wrench and actuation.

The solution to this problem is inclusive advantageous refinements and developments of Invention from the content of the claims, which follow this description.

The basic idea of the invention provides that the guide wall of actuation at least one in the direction of insertion of the socket wrench extending and open at the inserting groove with a window-like opening formed on the insertion side to hold one attached to the socket wrench has radially projecting guide approach and that the management approach uses an in Insertion direction undercut trained with its free end over the Radially resilient guide projection and at Insert the socket key into the actuation in the contour of the guide approach can be pressed in and the guide approach has breakable web, which at inserted socket wrench in the window-like Breakthrough of the actuation can be latched.

In this respect, actuation and socket wrench are each for established an inseparable connection with each other, the however only when the Socket wrench in the actuation after Assemble the door lock by snapping the at least one resilient web in the associated window-like breakthrough of the operation takes effect. After snapping in, the connection from Socket wrench and actuation only by removing the Can be released again, but not with normal Use of the door lock. Should be part of the normal use of the door lock a detachable Connection of actuation and socket wrench possible be by using the socket wrench after use should be able to be deducted, so is the web from the Socket wrench can be broken off, so that it locks into place of the socket wrench with actuation excluded is. When the bridge is broken, the socket wrench is insertable into the actuation each time in use and also removable from this.

The advantage of the invention is in particular connected that for both uses, namely the non-detachable as well as the detachable connection of socket wrench and actuation, only one at a time uniformly trained activity and a uniform trained socket wrench must be kept available; thus there are economic advantages in production and the storage for the door lock required parts connected.

As far as the invention in one in DE 33 16 834 C2 already described double bit key for use can come, points out the associated and known per se Actuation already two grooves to accommodate the Leadership approaches of the double bit key; at a such training of actuation and socket wrench it is then still necessary to actuate the train window-like breakthrough and the Management approaches of the double bit key with the Training of the resilient web required To provide an undercut, the so formed Bridge easily over those that act as leadership approaches Beard approaches must stand out in order to lock the Double bit key with the actuation ensure.

If the socket wrench is designed as a triangular or Square wrench or as part of other shapes for the socket wrench and the matched insertion opening of the actuator can the grooves on the actuation and the guide lugs on Socket wrench on the existing outer surfaces of the for example, triangles or squares attached be, either on only one surface or on several surfaces.

To cancel the web or, if applicable, the Bridges of the socket wrench for a detachable Can facilitate connection with the operation be provided that on the with the leadership approach connected end of the web a predetermined breaking point is formed, the predetermined breaking point as Material weakening can be formed.

Fig. 1

eine Betätigung eines Türverschlusses mit eingeschobenem und darin unlösbar verrasteten Türschlüssel,

Fig. 2

die Betätigung gemäß Figur 1 in einer schaubildlichen Einzeldarstellung,

Fig. 3

in einer Einzeldarstellung den Steckschlüssel gemäß Figur 1 in einer anderen Ausführungsform.

In the drawing, exemplary embodiments of the invention are shown, which are described below. Show it:

Fig. 1

an actuation of a door lock with the door key inserted and permanently locked therein,

Fig. 2

the actuation according to Figure 1 in a diagrammatic individual representation,

Fig. 3

in a single representation the socket wrench according to Figure 1 in another embodiment.

The actuation 10 shown in FIG. 1 cooperates a socket wrench 11 together; the actuation 10 enclosing closure housing for their storage not shown, nor that of the operation 10 locking element of the door lock to be actuated, the individual parts of the rest in the generic DE 33 16 834 C2 are described.

The actuator 10 has an insertion opening 12 Receiving the shaft 13 of the socket wrench 11, being in the center of the insertion opening 12 Guide mandrel 14 is arranged, which when inserting the Socket wrench 11 in a shaft 13 thereof provided bore 15 occurs so that a guide of the socket wrench 11 is already given.

As can be seen in more detail from Figure 2, are in the enclosing the insertion opening 12 and thus also the contour of the connector, for example as Double bit key, as triangular key or as Square key defining guide wall 23 of the Actuation 10 opposite to each other Extension direction of the socket wrench 11 open Grooves 16 arranged; on its upper, the Sockets 11 facing the end are the grooves 16 provided with a window-like opening 17.

The associated socket wrench has side Management approaches 18, which in training the Socket wrench 11 as a double bit key so far correspond to known beard approaches; the shaft is 13 formed as a triangle or a square, are Appropriate leadership approaches in addition to the Arrange outer surfaces of the key shaft 13, wherein the corresponding corresponding grooves 16 in the adjacent area of the guide wall 23 of the actuation 10 are to be provided. By means of a in the longitudinal direction of the Guide approach 18 of the socket wrench 11 extending Undercut 19 is in each guide approach 18 radially outwards over the dimension of the guide projection 18 projecting resilient web 20 is formed, which at Insert the socket wrench 11 into the Insertion opening 12 of the actuation 10 from the grooves 16 or the associated section of the guide wall 23 pressed inside into the contour of the guide projection 13 becomes. So that the socket wrench 11 is easy in the Push in operation 10. Rest in the end position the webs 20 in the associated window-like Breakthrough 17 of the actuator 10, and so is one realized inseparable connection in which the Socket wrench 11 no longer from actuation 10 can be pulled out.

Should such an inseparable connection for the Handling of the door lock cannot be given because the key to operating the door lock can be inserted and removed in each case, so the webs 20 from the guide lugs 18 of the Socket wrench 11 are broken out, so that a Locking the key shaft 13 with the actuation 10 is excluded. To break off the webs 20 to facilitate with the socket wrench 11 ends with the shown in Figure 1 embodiment of the respective undercut 19 in a Material weakening 21 form, while at the embodiment shown in Figure 3 separate predetermined breaking point 22 on the web 20 is trained.

When webs 20 have broken out, the remaining ones have Management approaches 18 an additional Stabilization function for the connection of Socket wrench 11 and actuation 10 when handling the door lock.

The invention can be particularly advantageous in Plastic existing door locks, however, the application of the inventive concept is also not excluded with metallic door locks, as far as the spring action of the webs 20 and their Detachability from the leadership approaches 18 guaranteed is.

The in the above description, the Claims, the abstract and the drawing disclosed features of the subject of these documents can be used individually or in any combination with each other for the realization of the invention in their various embodiments may be essential.

Claims (4)

1. Door closure, in particular for a control cabinet having an actuator (10) for the closing element of the door closure, which actuator is supported in a closure housing and is to be operated by a key (11), wherein the actuator comprises a guide wall (23), which defines the insertion opening (12) for the correspondingly shaped key and borders the latter, characterized in that the guide wall (23) of the actuator (10) comprises at least one groove (16), which extends in the direction of insertion of the key (11) and is open at the insertion end and has a window-like hole (17) formed at the insertion side for receiving a radially projecting guide projection (18) provided on the key (11), and that the guide projection (18) comprises a web (20), which is formed by means of an undercut (19) extending in the direction of insertion and resiliently protrudes with its free end radially beyond the guide projection (18) and upon insertion of the key (11) into the actuator (10) is pressable into the contour of the guide projection (18) and is breakable off the guide projection (18) and which, once the key (11) is inserted, is latchable into the window-like hole (17) of the actuator (10).
2. Door closure according to claim 1, characterized in that a rupture joint (21, 22) is formed at the end of the web (20) connected to the guide projection (18).
3. Door closure according to claim 2, characterized in that the rupture joint takes the form of a material weakening (21) .
4. Door closure according to one of claims 1 to 3, characterized in that formed on the actuator (10) and on the key (11) so as to be distributed over their periphery are in each case a plurality of grooves (16) and guide projections (18) with webs (20).

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