EP3781766B1 - Closing arrangement for a switch cabinet, and a corresponding adapter - Google Patents

Description

The invention is based on a locking arrangement for a switch cabinet according to the preamble of claim 1. Such a locking arrangement is in DE 297 05 778 U1 described. A similar closure arrangement also describe DE 20 2009 013235 U1 and the post-released DE 10 2017 114 094 A1 .

There is a need to replace the door lock plate with another door lock plate, for example to provide a door lock plate with an additional function, even after the switch cabinet has been erected and the switchgear accommodated in the switch cabinet housing has been commissioned. For example, control cabinets are often equipped with a fully mechanical door lock plate at the factory and it may be desirable at a later date that the door lock plate be expanded to include a radio interface for access authorization. Such a door lock sign is, for example, in DE 10 2016 112 007 A1 described.

The interface designed in the form of a door hole pattern in the door leaf of the switch cabinet door for mechanically coupling the door lock plate to the switch cabinet housing is generally matched to the door lock plates of a specific switch cabinet manufacturer. In particular, there is no standardization of the fasteners for door lock labels on switch cabinet housings, so that it has not been possible to date to switch between door lock labels from different makes.

It is therefore the object of the invention to further develop a locking arrangement of the type described at the outset in such a way that it allows the flexible coupling of door lock plates without post-processing of the control cabinet door or the door lock plate.

This object is achieved by a closure arrangement having the features of claim 1. The independent claim 9 relates to a corresponding adapter. The dependent claims each relate to advantageous embodiments of the invention.

Accordingly, it is provided in a locking arrangement that the adapter has a slot-shaped recess on a first fastening side facing the door leaf, along which the coupler can be linearly adjusted, the adapter also having two fastening means, preferably mushroom-head pins, which are each mounted at a distance in front of one of the opposite longitudinal ends of the slot-shaped recess.

Contrary to the teaching of DE 10 2017 114 094 A1 the door lock sign with its mounting side is therefore not fixed directly on the door leaf. Rather, an adapter is arranged between the door leaf and the door lock plate, which can have individual fastening means on the opposite fastening side for the adaptation of any door lock plates to any door leaves, with the mechanical connection between the locking mechanism and the adjustment mechanism being carried out via a coupler which can be accommodated in the adapter can, is provided. Thus, the door lock escutcheon and the door leaf can be spaced apart at a distance that corresponds to a distance from opposite attachment sides of the adapter for attaching the adapter to the door lock escutcheon and for attaching the adapter to the door leaf.

An adapter can thus be provided, which is arranged between the control cabinet door and the door lock plate and is set up, on the one hand, to fasten the door lock plate to the control cabinet door and, on the other hand, to produce the mechanical coupling between the locking mechanism and the adjustment mechanism. For the mechanical fastening of the adapter to the door lock escutcheon, the adapter can have a large number of common fastening hole patterns and, if necessary, further fastening means, so that the adapter can be fastened to a door lock plate to be adapted in each case using one or the other fastening hole pattern or fastening means.

The fastener may be a mushroom head spigot. The mushroom head peg may have a shank over which the mushroom head peg is fixed and extends from the mounting side facing the door panel. At the free end of the shank, a pin head that is widened relative to the shank can be arranged. The shank may have a diameter substantially corresponding to a diameter of the narrower portion of the keyhole. The spigot head may have a diameter which is greater than the diameter of the narrower part of the keyhole and which corresponds to the western diameter of the widened part of the keyhole, so that the spigot head can engage behind the narrower part of the keyhole. The mushroom head peg can be used as a Screw bolts can be designed with a threaded shank and a screw head fastened at the end.

For the mechanical attachment of the adapter to the door leaf, the adapter can have a large number of common attachment hole patterns, so that the at least one attachment means of the adapter can be fixed to the adapter using one or the other attachment hole pattern as required. For this purpose, the fastening means can be designed as a threaded pin with a mushroom head and the fastening holes of the fastening hole pattern can be designed as bores with an internal thread.

Likewise, the coupler can be set up to allow different locking mechanisms to be coupled to different adjustment mechanisms. However, it can also be provided in particular that the adapter is set up to fix a specific door lock plate, which is inherently incompatible with the door hole pattern of the door panel of the control cabinet door, on this control cabinet door. Here and also in other embodiments of the invention, it can be provided, for example, that the coupler is an exchangeable part and thus a suitable coupler can be used depending on the pairing of control cabinet door and door lock plate to be connected. For example, it is conceivable that the adapter is provided with a plurality of couplers, one of which can be optionally inserted into the elongated hole of the coupler, depending on which embodiment of the coupler is required for the coupling of the present pairing of control cabinet door and door lock plate.

The door hole pattern can have at least one further opening into which a locking bolt of the adapter engages. Provision can be made for the at least one keyhole to be integrally formed on the further opening, so that the keyhole and the further opening form a coherent opening through the door leaf. For example, the keyhole can be designed as a double keyhole, in which the widened part of the keyhole forms a central area of the keyhole, from which a slot extends in opposite directions, and in a locking position of the door lock escutcheon on the door leaf, the mushroom head pin can be pushed through one of the protrudes through both elongated holes, while the locking bolt protrudes into the other elongated hole. The double keyhole can be formed symmetrically relative to two mutually perpendicular axes lying in the plane of the door leaf. At least one section of the keyhole in the form of an elongated hole can extend parallel to the elongated hole. The slot-shaped section of the keyhole can be opposite to the widened section of the keyhole be narrowed area of the keyhole, which can be reached from behind by the mushroom head pin.

The adapter can have a slot-shaped recess on a first fastening side facing the door leaf, along which the coupler can be linearly adjusted. The coupler can be exchangeably mounted in the slot-shaped recess in order to allow flexible adaptation of the adapter to the respective application.

The door leaf can have two keyholes which are opposite one another relative to the elongated hole, are each located in front of a longitudinal end of the elongated hole and are aligned in the same way. The door hole pattern can also have a through hole, which can be required, for example, to route a cable from the door lock shield into the interior of the control cabinet.

A door lock plate within the meaning of the present application can in particular be such a door lock plate as is used for the actuation of push rod locks of switch cabinet housings. A corresponding door lock sign is in the DE 10 2017 114 094 A1 described.

The door hole pattern of the door leaf in the sense of the present invention is limited to that surface area of the door leaf which is covered by the door lock escutcheon when the door lock escutcheon is mounted on the door leaf. This is necessary to ensure a secure seal of the control cabinet housing.

The keyholes can be arranged at a distance from the elongated hole in the direction perpendicular to the longitudinal direction of the elongated hole. A coupling member of the push rod lock can protrude from the rear side of the door panel through the slot through the slot over the outside of the door panel, where the coupling member is in engagement with the coupler of the adapter.

The at least one mushroom head pin can be designed as a threaded screw bolt with a screw head that is widened compared to a threaded section, which is screwed into a first fastening side of the adapter facing the door leaf and is thus adjustable with respect to the first fastening side. For this purpose, the first fastening side can have at least one internal thread corresponding to the threaded section. The adapter can have two opposite fastening sides, namely a first fastening side facing the door leaf and a second fastening side facing away from the door leaf, the first fastening side having a slot-shaped recess, within which the coupler can be linearly adjusted, and the adapter on the second fastening side having a has a further recess via which the coupler is accessible from the second fastening side for coupling to the adjusting mechanism of the door lock plate.

The adapter can have a rack and pinion gear coupled to the coupler, via which a rotational movement of the adjustment mechanism of the door lock escutcheon is transferred to a linear adjustment of the coupler.

According to another aspect of the invention, an adapter for a locking arrangement of the type described above and for coupling a door lock plate to a control cabinet door is described, which has a first fastening side for mounting the adapter on a door panel of a control cabinet door and a second fastening side for mounting a door lock plate comprises, wherein the first and the second attachment side are arranged opposite. The first fastening side can have at least one mushroom head pin protruding from the first fastening side and a slot-shaped recess in which a coupler is accommodated and along which the coupler can be linearly adjusted, the adapter having a slot-shaped recess on the first fastening side facing the door leaf, along which a Coupler is linearly adjustable, wherein the adapter further comprises two fasteners, preferably mushroom head pins, which are each one of the opposite longitudinal ends of the slot-shaped recess upstream at a distance.

The first fastening side can have a latching bolt which moves back and forth between a latching position, in which it protrudes from the first fastening side by a dimension perpendicular to the first fastening side, and a release position, in which it is at least partially retracted into the first fastening side with respect to the latching position is movable.

The second fastening side can have a third recess into which the locking bolt protrudes at least in the release position. It can be provided, for example, that when the door lock plate is mounted on the second fastening side, a section of the door lock plate protruding into the third recess rests against a free end of the locking bolt protruding into the third recess, so that a transfer of the locking bolt from the locking position to the release position is not possible when the door lock plate is mounted on the second fastening side.

The second fastening side can have a further recess via which the coupler is accessible from the second fastening side through a passage between the further recess and the slot-shaped recess for coupling to an adjustment mechanism of a door lock escutcheon.

A through hole can be formed between the further recess and the slot-shaped recess, which is countersunk at its opening to form the slot-shaped recess for receiving a screw head. This makes it possible for the coupler to be accommodated in the slot-shaped recesses via a positive fit in two of three spatial directions and thus only adjustable in the longitudinal direction of the slot, which ensures a high level of operational reliability of the adapter.

Figur 1

eine beispielhafte Ausführungsform einer Schaltschranktür in der Draufsicht auf die Außenseite;

Figur 2

eine weitere Ausführungsform einer erfindungsgemäßen Schaltschranktür in der Draufsicht auf die Außenseite;

Figur 3

in perspektivischer Darstellung ein Türschlossschild auf einem Adapter, welcher die Ankopplung des Türschlossschilds auf die Schaltschranktür gemäß Figur 2 erlaubt;

Figur 4

die Anordnung gemäß Figur 3 in persektiviescher Sicht auf die erste Befestigungsseite;

Figur 5

die Ausführungsform gemäß den Figuren 3 und 4 mit perspektivischem Blick auf die zweite Befestigungsseite und bei von dem Adapter abgehobenem Türschlossschild; und

Figur 6

zwei Querschnittsansichten der Ausführungsform gemäß den Figuren 3 bis 5, welche die Ankopplung des Türschlossschilds auf dem Adapter veranschaulichen.

Further details of the invention are explained with reference to the figures below. It shows:

figure 1

an exemplary embodiment of a switch cabinet door in plan view of the outside;

figure 2

another embodiment of a switch cabinet door according to the invention in plan view of the outside;

figure 3

a perspective view of a door lock plate on an adapter, which according to the coupling of the door lock plate on the control cabinet door figure 2 permitted;

figure 4

the arrangement according to figure 3 in perspective view of the first attachment side;

figure 5

the embodiment according to Figures 3 and 4 with a perspective view of the second fastening side and with the door lock plate lifted off the adapter; and

figure 6

two cross-sectional views of the embodiment according to FIGS Figures 3 to 5 , which illustrate the coupling of the door lock shield on the adapter.

the figure 1 shows a first embodiment of an exemplary switch cabinet door 100 for a switch cabinet arrangement according to the invention. The control cabinet door 100 has a door leaf 101 with a door hole pattern, which has an arrangement of four keyholes 103 and a slot 104 . The keyholes 103 are designed as double keyholes 103, with a central widened area, which is adjoined on opposite sides and extending in opposite directions in each case by a hole area which is narrower than the widened area. Depending on the embodiment, these narrowed areas can be designed as oblong holes. Like in the DE 10 2017 114 094 A1 described, such doubled keyholes 103 can be used on the one hand to produce a mushroom head pin connection between the door leaf 101 and, for example, a lock plate, while on the other hand a locking bolt is accommodated in the same keyhole 103 and with the help of which the door lock plate can be locked in an unlocked position of the door lock plate the door leaf 101 is reached. For this purpose, after it has been placed over the widened area on the door leaf 101, the mushroom head pin can reach behind one of the two narrowed areas of the keyhole 103 by moving the door lock escutcheon, while the locking bolt engages in the opposite narrowed area, so that the door lock escutcheon in relation to the Door leaf 101 is locked.

The door hole pattern also has a slot 104 which extends with its longitudinal direction in the connecting direction of two opposite keyholes 103 . About the slot 104, a locking mechanism 102 of the cabinet door 100, which is substantially at the in the representation figure 1 hidden rear side of the door panel 101 is arranged, through the door panel 101 to the in figure 1 protrude through the front side of the door panel 101 shown in the plan view, in order to engage there with the locking mechanism of the door lock panel when the door panel 101 is placed on the door panel. The locking mechanism 102 can be designed, for example, in the manner of a push rod lock. The coupling of such a push rod closure to a door lock shield is in DE 10 2017 114 094 A1 described.

At the in figure 1 In the illustrated embodiment, four keyholes 103 are provided, located at the corners of a rectangle. The door hole pattern formed from the keyholes 103 and the elongated hole 104 is limited to that area which is covered by the adapter or the door lock plate when a door lock plate or an adapter is installed. This ensures that all openings forming the door hole pattern are closed by the adapter or door lock plate when the adapter or door lock plate is placed on the door leaf 101, whereby an effective seal is achieved, for example with the aid of a sealing element between the door leaf 101 and the adapter or door lock plate , which is closed all the way around all openings of the door hole pattern.

An alternative embodiment for a door hole pattern of a control cabinet door 100 is in figure 2 shown. In addition to the elongated hole 104 for the locking mechanism 102 to reach through, this points from the back of the control cabinet door to the in figure 2 in the plan view, the front of the control cabinet door 100 also has two keyholes 103, which are in the manner of figure 1 shown keyholes 103 are formed as doubled keyholes. One of the two keyholes 103 in the embodiment according to FIG figure 2 is arranged in alignment with the longitudinal direction of the elongated hole 104, while the further keyhole 103 is arranged at a distance from the longitudinal axis of the keyhole 103. The door hole pattern also has a further opening 105, which is designed as a circular hole. In principle, other geometries for the further opening 105 are also conceivable. The further opening 105 can be used, for example, to route a data cable or a power cable from the door lock plate 200 mounted on the control cabinet door 100 to the inside of the control cabinet door 100 and thus into the interior of the control cabinet housing.

the Figures 3 to 6 show various views of an embodiment of an adapter 1 with a door lock plate 200 mounted on it, as is used in connection with the figure 2 shown door hole pattern can be used. The embodiment according to figure 2 and the embodiment according to FIG Figures 3 to 6 can thus be used as a common embodiment for providing a closure arrangement according to the invention.

The adapter 1 essentially has a first mounting side 6 for mounting the adapter on the door leaf 101 and a second mounting side 7 for mounting the door lock escutcheon 200 . On the first assembly side 6 facing the door leaf 101 , the adapter 1 has two mushroom head pins 2 extending perpendicularly to the first assembly side 6 . These are designed as threaded pins and are screwed into the first assembly side 6 . As a result, the distance between the widened end of the mushroom head pin 2 and a support plane of the first fastening side 6, with which the first fastening side 6 can be brought to rest on the door leaf 101, can be varied, for example in order to, in a mounting position of the adapter 1 on the door leaf 101, in which the mushroom-head pins 2 engage behind the narrowed areas of the keyholes 103 to brace the adapter 1 against the door leaf 101, so that a secure hold of the adapter 1 on the door leaf 101 is ensured.

On the first attachment side 6, the adapter 1 also has a slot-shaped recess 5, within which a coupler 3 is linearly displaceable in the longitudinal direction of the slot-shaped recess 5. In the direction perpendicular to the adjustment direction of the coupler 3 , the coupler 3 is accommodated in the recess 5 in a form-fitting manner and is thus guided by the long side edges of the slot-shaped recess 5 .

As with reference to the doubled slots 104 of FIG figures 1 and 2 has been described, one of the two mushroom head pins 2 has an associated locking bolt 4 which ensures that the adapter 1 is locked on the door leaf 101 when the adapter 1 is arranged in a mounting position on the door leaf 101 . The coupler 3 has coupling receptacles 12 which are engaged with the locking mechanism 102 of the control cabinet door when the adapter 1 is placed on the door leaf 101 .

On the second fastening side 7, the adapter 1 has a further recess 8, which opens into the slot-shaped recess 5 via a passage 10, so that the door lock plate 200 can be coupled to the coupler 3 in the slot-shaped receptacle 5 through the passage 10. The further recess 8 also has two through-holes 11, which extend into the slot-shaped recess 5 open out, so that the door lock escutcheon plate 200 can be screwed onto the second fastening side from the slot-shaped recess 5 via screw bolts.

With reference to the figure 6 It can also be seen that in the assembly position of the door lock escutcheon 200 on the second fastening side 7, a locking bolt 4 is pressed into its locking position and can only be moved from this into the retracted position shown in the illustration below if the door lock escutcheon 200 is removed from the second Mounting side 7 of the adapter 1 is dismantled and lifted off.

The door lock escutcheon 200 can be designed, for example, as a pivoted lever that can be pivoted in a plane parallel to the door leaf 101 . In order to achieve a translatory movement of the coupler 3, the coupler 3 has a gear 13 which converts the pivoting movement into a translatory movement.

Reference list:

1

adapter

2

mushroom head cone

3

coupler

4

detent bolt

5

slot-shaped recess

6

first mounting side

7

second mounting side

8th

further recess

9

third recess

10

passage

11

through hole

12

clutch mount

13

rack and pinion gear

100

control cabinet door

101

door leaf

102

locking mechanism

103

keyhole

104

Long hole

105

another breakthrough

200

door lock sign

201

adjustment mechanism

Claims (13)

1. A locking arrangement for a switchgear cabinet, which has a switchgear cabinet door (100) with a door leaf (101) and a locking mechanism (102) on an inner side of the switchgear cabinet door (100), a door lock plate (200) being detachably fixed to the door leaf (101) on an outer side arranged opposite the inner side and having an adjusting mechanism (201) which is coupled through the door leaf (101) to the locking mechanism (102), and wherein the door leaf (101) has a hole pattern with at least one keyhole (103) and an elongated hole (104), wherein the door lock plate (200) is detachably fixed to an adapter (1) which is releasably fastened to the door leaf (101) via a fastening means (2) engaging in the keyhole (103) and which has a coupler (3) which can be adjusted in the longitudinal direction of the elongated hole (104) and via which the adjusting mechanism (201) is coupled to the locking mechanism (102), characterized in that the adapter (1) has, on a first fastening side (6) facing the door leaf (101), an elongated-hole-shaped recess (5) along which the coupler (3) can be adjusted linearly, the adapter (1) furthermore having two fastening means (2), preferably mushroom-headed pins, which are each mounted at a distance in front of one of the opposite longitudinal ends of the elongated-hole-shaped recess (5).
2. The locking arrangement according to claim 1, wherein the door hole pattern comprises at least one further aperture (105) in which a locking bolt (4) of the adapter (1) engages, the at least one keyhole (103) preferably being integrally formed on the further aperture (105).
3. The locking arrangement according to any one of the preceding claims, in which the adapter (1) has, on a first fastening side (6) facing the door leaf (101), an elongate hole-shaped recess (5) along which the coupler (3) can be linearly adjusted.
4. The locking arrangement according to any one of the preceding claims, wherein the door leaf (101) comprises two keyholes (103) opposite each other relative to the elongated hole (104), each keyhole (103) being located in front of a longitudinal end of the elongated hole (104) and being aligned in the same way.
5. The locking arrangement according to claim 4, wherein the keyholes (103) are arranged in the direction perpendicular to the longitudinal direction of the elongated hole (104) at a distance from the elongated hole (104).
6. The locking arrangement according to one of the preceding claims, in which the fastening means (2), in particular a mushroom-headed pin, is designed as a threaded screw bolt with a screw head which is widened with respect to a threaded section, which screw bolt is screwed into a first fastening side (6) of the adapter (1) facing the door leaf (101) and can thus be adjusted with respect to the first fastening side (6).
7. The locking arrangement according to one of the preceding claims, in which the adapter (1) has two opposite fastening sides (6, 7), a first fastening side (6) facing the door leaf (101) and a second fastening side (7) facing away from the door leaf (101), the first fastening side (6) having an elongated hole-shaped recess (5), within which the coupler (3) is linearly adjustable, and the adapter (1) having on the second fastening side (7) a further recess (8) via which the coupler (3) is accessible from the second fastening side (7) for coupling to the adjusting mechanism (201) of the door lock plate (200).
8. The locking arrangement according to any one of the preceding claims, wherein the adapter (1) comprises a rack and pinion gear (13) coupled to the coupler (3), via which a rotational movement of the adjustment mechanism (201) of the door lock plate (200) is transmitted to a linear adjustment of the coupler (3).
9. An adapter (1) for a locking arrangement according to any one of the preceding claims and for coupling a door lock plate (200) to a control cabinet door (100), wherein the adapter (1) comprises a first mounting side (6) for mounting the adapter (1) on a door panel (101) of a control cabinet door (100) and a second mounting side (7) for mounting a door lock plate (200), wherein the first and second fastening sides (6, 7) are arranged opposite one another, and wherein the first fastening side (6) has at least one fastening means (2) projecting from the first fastening side (6) and an elongated hole-shaped recess (5) in which a coupler (3) is accommodated and along which the coupler (3) is linearly adjustable, characterized in that the adapter has, on the first fastening side (6) facing the door leaf (101), an elongate-hole-shaped recess (5) along which a coupler (3) is linearly adjustable, the adapter (1) furthermore having two fastening means (2), preferably mushroom-headed pins, which are each mounted at a distance in front of one of the opposite longitudinal ends of the elongate-hole-shaped recess (5).
10. The adapter (1) according to claim 9 or 10, wherein the first mounting side (6) comprises a detent pin (4) which is movable back and forth between a detent position, in which it protrudes from the first mounting side (6) by a dimension perpendicular to the first mounting side (6), and a release position, in which it is at least partially retracted into the first mounting side (6) relative to the detent position.
11. The adapter (1) according to claim 10, wherein the second fastening side (7) has a third recess (9) into which the detent pin (4) projects at least in the release position.
12. The adapter (1) of any one of claims 9 to 11, wherein the second mounting side (7) has a further recess (8) via which the coupler (3) is accessible from the second mounting side (7) through a passage (10) between the further recess (8) and the elongate hole-shaped recess (5) for coupling to an adjustment mechanism (201) of a door lock plate (200).
13. The adapter (1) according to claim 12, wherein a through hole (11) is formed between the further recess (8) and the elongated hole-shaped recess (5), which is countersunk at its opening to the elongated hole-shaped recess (5) for receiving a screw head.

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