WO2003030323A1

WO2003030323A1 - Switchgear cabinet

Info

Publication number: WO2003030323A1
Application number: PCT/EP2002/010311
Authority: WO
Inventors: Heine Altena
Original assignee: Eldon Holding Ab
Priority date: 2001-09-28
Filing date: 2002-09-13
Publication date: 2003-04-10
Also published as: DE10147990A1

Abstract

The invention relates to a switchgear cabinet comprising at least one door leaf that is hung on the exterior of the carcass, in addition to a locking device, which locks the door leaf or leaves to a floor and/or cover transverse part of the switchgear cabinet by means of a sliding bar that runs parallel to a vertical edge of the door leaf and an actuating device that is located on the exterior of the door leaf. The invention is characterised in that the locking device is positioned on the interior of the door leaf and is fixed by a pin, which extends through the door leaf and is fastened to the actuating element and that the pin simultaneously forms the shaft of a toothed wheel, which displaces the sliding rod.

Description

description

The invention relates to a control cabinet with at least one door wing attached to the outside of the body, and with a locking device which locks the at least one door wing with a floor and / or ceiling crossmember of the control cabinet by means of a push rod running parallel to a vertical edge of the door wing and with an actuating device arranged on the outside of the door leaf.

It is known to close control cabinets of the type mentioned above with a locking device, preferably a push rod lock. Here, the control cabinets are either closed with one door wing or with two door wings, but the locking device is generally only attached to one door.

With regard to the fastening of the closure, it is particularly important that it can be used as variably as possible, i.e. that the cabinet door can be hinged to the right or left without major modifications to the locking mechanism. So far, it has mostly been necessary to remove and reinstall the entire lock to enable the stop to be changed here.

The invention is therefore based on the object of providing a holding and locking device for the door leaf of a control cabinet, which overcomes the problems which occur in the known locking devices.

This object is achieved for a control cabinet of the known type in that the locking device is arranged on the inside of the door leaf and is fastened via a pin which extends through the door leaf and is connected to the actuating element, the pin simultaneously representing the axis of a gearwheel moving the push rod , The locking device according to the invention provides a very simple construction of the locking device, which is very cheap to manufacture on the one hand and very easy to operate on the other hand. In particular, the number of necessary parts is greatly reduced, so that the locking device is also simplified with regard to assembly and is characterized by a lower susceptibility to malfunction.

Since the locking device can only be attached using a single pin, only a single passage opening through the door leaf is necessary. This is particularly important for control cabinets that need to be sealed well, as the number of openings to be sealed is greatly reduced.

According to a preferred embodiment it can be provided that the locking device is constructed symmetrically along a longitudinal axis. Due to the symmetrical structure, it is possible to use the locking device without modifications, regardless of the type of attachment. As a result, the locking device can already be preassembled on the door leaf and the user can determine the stop of the door at will. If the door leaf is equipped with a normal door handle as an operating element, even this can remain in its position.

It can advantageously be provided that the gear wheel is openly accessible from the inside of the control cabinet. Since the locking device, and thus the gearwheel, are easily accessible, they can be easily serviced or repaired without the need to remove the entire device.

According to a further embodiment, the push rod can extend parallel to a bent side edge of the door leaf that extends towards the interior of the control cabinet. This position has proven particularly useful in practice, in particular that the push rod is protected by the beveled side edge. At the same time, the locking device is also protected by this positioning.

Engagement elements can advantageously be arranged above and below the gearwheel that moves the push rod. This results in an improved fixation of the gear and in particular prevents the selected position of the Locking system, closed or open, changed.

According to a further embodiment it can be provided that the locking device is partially covered by a housing. In this way, access to the locking device is not hindered, but at the same time protection of the movable parts thereof is provided.

The invention is explained in more detail below using an exemplary embodiment which is shown in the drawing. It shows:

FIG. 1: a cutout three-dimensional view of a second door wing with a U-shaped channel, and a ceiling cross member with a receptacle attached to it,

Figure 2: a schematic section through the closed door, the

Locking system is not shown.

FIG. 3: a partial view of the back of a first door wing with a locking device attached to it,

FIG. 4 shows a section through a switch cabinet according to the invention with closed door leaves, the door leaves being shown from the switch cabinet interior,

FIG. 5: a partial view of a first door wing with a locking device and actuating element attached to it,

Figure 6: the locking device shown in Figure 4 from another

Perspective;

Figure 7: a top view of a section through the closed door, and

Figure 8: a section of a section along the push rod. Since the locking system according to the invention can be used equally for control cabinets with only one door leaf and also with two door leaves, both types of locking are referred to in the description and both are described. The locking device is described in particular with reference to FIGS. 5 and 6.

In Figure 1 is a section of a second door leaf 2, i.e. the door leaf, which is partially overlapped by the first door leaf 1 in the closed state, is shown. The second door leaf 2 is formed from a sheet metal blank, with bevels provided on the upper, lower and vertical side edge, which is attached to a vertical profile rail of the control cabinet, not shown in this illustration, which are perpendicular to the Extend the door leaf to the control cabinet interior.

On the side edge 3 of the second door leaf 2 facing away from the profile rail, i. the side edge 3 facing the first door leaf in the closed state is folded over in such a way that a U-shaped channel 4 is formed on the side edge 3. The U-shaped channel 4 here comprises the U-legs 5, 6 and a base region 7. Here, the first U-leg 5, i.e. the one angled directly from the door leaf 2 to the control cabinet interior, with an angle of slightly more than 90 ° being selected. The base region 7 runs parallel to the door leaf 2 and the second U-leg 6 then extends to the first door leaf 1 at an angle corresponding to the first leg 5. The width of the U-legs 5, 6 is chosen so that the U-shaped channel 4 does not extend substantially beyond the fold of the door leaf 2. In the closed state, the U-shaped channel is essentially completely covered by the first door leaf 1, from which

The receptacle 8, also shown in FIG. 1, is fastened to a ceiling cross member 9 of the control cabinet. The recording will be described in detail later with additional reference to FIGS. 7 and 8.

FIG. 2 schematically shows a section through the two closed door leaves, the push rods, the locking system or parts of the control cabinet not being shown. are posed. Only the alignment of the door leaves 1, 2 to one another is to be clarified.

FIG. 3 shows a section of the first door leaf 1 from the inside lying in the closed state. Like the second door leaf 2, the first door leaf 1 is formed from a sheet metal blank and has on its horizontal and vertical side edges in each case with bevels which extend perpendicularly from the door leaf to the interior of the control cabinet. Immediately on the vertical fold 10 facing the second door leaf are the locking device 11, shown without a cover, and the push rods 12, 12 ^' . The push rods 12, 12 ^' are flat strip rods which are arranged so that they can be displaced with their wide side parallel to the bevel 10. In this case, a push rod 12, 12 ^' extends from the locking device 11 upwards or downwards. Both continuous and non-continuous push rods can be used.

The locking device 11 comprises a gearwheel 13, which can be rotated via an actuating device, preferably a handle or lever, arranged on the outer or visible side of the first door leaf 1. Here, the gear 13 is connected via its axis to the handle. Above and below this gear 13, circular engagement devices 14, 14 ^' are arranged, which are in engagement with the teeth of the gear 13 and exert a certain force on the gear against easy rotation. A second gear 15, which is driven by the movement of the first gear 13, is arranged somewhat below the gear 13. In this context, it is pointed out that the second gear 15 is not absolutely necessary, but can be arranged optionally.

On both sides of the gears 13 and 15, the push rods 12, 12 ^' are arranged parallel to one another. The sections of the push rods 12, 12 ^'which are arranged directly on the gear wheels are provided with perforations which are arranged at regular intervals from one another and into which the individual teeth of the gear wheels 13 and 15 engage. By the movement of the gears 13 and 15, the push rods 12, 12 ^' are displaced in opposition to one another, the push rod 12 upwards and the Push rod 12 ^' down. This movement of the push rods 12, 12 'leads to a locking of the door leaves 1, 2.

The push rods 12, 12 'are angled above and below the locking device 11, so that they are arranged approximately centrally to the locking device 11 in the further course. Here, the lower push rod 12 ^'can first be angled outwards and only a little later into the central position, for example if a lock 16 is arranged below the locking device.

In order to ensure a common guidance of the push rod over the entire length of the door, 11 guides 17, 17 ^{'can also be} arranged above and below the locking device. These guides 17, 17 ^' are also attached to that of the first door leaf 1. These can be guides which ensure that the push rods run smoothly or guides which ensure smooth transmission of the movement force of the push rod 12, 12 ^' to a rod arranged above the remaining section of the door. In the case of very high doors in particular, such a divided push rod has proven itself. Furthermore, the divided push rod also facilitates the replacement of the locking device 11 or conversion of the door, since the entire push rod system does not have to be replaced.

The arrangement of the push rods 12, 12 ^' and the locking device 11 within the closed door leaves 1, 2 is shown in FIG. 4. Here, the door leaves are shown from the interior of the control cabinet, these being separated from the rest of the cabinet in such a way that the second door leaf 2 is shown without the base region 7 of the U-shaped channel.

As can be seen from FIG. 4, the control cabinet has a frame with vertical rail profiles 18, 19 and with floor and ceiling cross members 9, 20. The outer vertical folds of the two door leaves 1, 2 partially encompass the vertical rail profiles of the frame.

The two door leaves 1, 2 overlap one another in the closed state in such a way that the locking device 11 and the push rods 12, 12 ^'are completely accommodated within the U-shaped channel 4. The vertical Edging 10 of the first door leaf 1 in the U-shaped channel 4 and extends next to the U-leg 5, which face the second door leaf. Since the U-legs 5, 6 are not angled at an angle of 90 ° from the door leaf 2, on the one hand more space is made available within the channel, and on the other hand a smooth engagement of the fold 10 is ensured.

In addition to the guides 17, 17 ^′ arranged on the inside of the first door leaf 1, devices can also be provided within the U-shaped channel 4 of the second door leaf 2, which ensure that the push rod is fixed on the second door leaf 2. For example, locking devices can be provided, into which projections provided on the push rod, for example, snap into place. Such an embodiment also increases the security of the locking device, since it is ensured that the two doors are aligned with one another in one plane.

FIGS. 5 and 6 also show the first door leaf 1 together with a locking device 11 arranged on the inside thereof. As already explained with reference to FIG. 3, the push rod is arranged parallel to the bevel 10.

An actuating element 18 with a pivot lever 19 is arranged on the outside or visible side of the door leaf. The position of the actuating element 18 corresponds to the position of the locking device 11. The actuating element 18 or the pivoting lever 19 is connected to the locking device 11 by a screw. This screw 20 serves on the one hand to transmit the movement of the pivot lever 19 to the gear 13 of the locking device, since the screw 20 also simultaneously represents the axis of the gear, on the other hand, the locking device 11 is fastened to the door leaf 1 via the screw 20. Apart from the screw 20, no additional fastening of the locking device 11 is provided on the door leaf, so that the assembly can be carried out quickly and easily.

The locking device 11 again comprises a gear 13, which is held between two engagement units 14. In contrast to the illustration in FIG. 3, a cover is arranged on the individual elements, the elements still being freely accessible, ie the cover 21 only provides one surface protection. As is clear, the gear 13 is still freely accessible from the side.

Although only one push rod is shown in the illustration, a second push rod can be arranged parallel to the first on the other side of the gear 13. Only if two push rods are arranged, it is possible to lock the door at the top and bottom at the same time.

The receptacle 8 is described in detail below with reference to FIGS. 1, 7 and 8. For the sake of completeness, it is pointed out that the upper and lower receptacles are identical, but are designed to be reversed.

The top and bottom crossbeams 22 of the control cabinet run parallel to the upper and lower edges of the door leaves 1, 2. The receptacles 8 are arranged on the ceiling cross member 9 and / or floor cross member 22. The receptacles are each attached to the lower side of the upper cross member 9 and the upper side of the lower cross member 22. Here, recordings are arranged both below and above when the locking device 11 moves two push rods 12, 12 ^' up and down. The receptacles are arranged on the cross members 9, 22 in such a way that the push rods 12, 12 ^' engage the receptacles 9 in the locked state.

As shown in particular in FIG. 7 in a top view, the receptacle consists of a rectangular entry channel 23 which is open at least on the side on which the push rod 12, 12 'enters. In this case, the side of the inlet channel 23, which in the installed state rests on the crossmember 9.22, extends on both sides beyond the inlet channel and is each provided with a side leg 24, 25 angled from the interior of the control cabinet. The angle corresponds approximately to the angle at which the U-legs 5, 6 are angled from the door leaf 2 or the base region 7. In the closed state, these side legs 24, 25 form an extension of the U-legs 5, 6 in the area over which the U-channel 4 no longer extends. As is clear from FIG. 6, the side legs 24, 25 are spaced somewhat further apart from one another than the U-legs 5, 6, so that on the one hand the production is simplified since the parts do not have to be manufactured to exact dimensions. At the same time, the side legs 24, 25 can take on an additional sealing function. The rectangular-shaped receptacle 8 also has a projection 26 on the elongated side wall on the edge facing the cross member 9, 22, which extends at a 90 ° angle from the rectangular entry channel 23. In the assembled state, this projection 26 rests on the floor crossmember 22 and can be connected there to the floor crossbar 22 provided with rows of holes by means of a passage opening 27 provided in the projection 26. In this way, the position of the recording can be determined flexibly.

As further shown in particular in Figure 8, the area 27 of the push rod 12 ', which enters the receptacle is tapered. This measure takes into account the space required for the wall of the receptacle 8. At the same time, the insertion of the push rod 12 ^′ into the receptacle 8 is facilitated.

The tapered area 27 is additionally provided at its lower end with a wheel element 28, which consists of two wheels arranged on both sides of the push rod. This wheel element 28 additionally facilitates the entry of the push rod 2 ^' into the receptacle. At the same time, this wheel element 28 represents a certain resistance when inserting or executing and thus thus secures the locking.

Although the figure only shows the lower receptacle along with the push rod, the structure of the upper receptacle and the upwardly directed push rod 12 is identical, only reversed.

It is pointed out that the locking device, in addition to push rods and receptacles, was described with the aid of a double-leaf door, but a door leaf designed accordingly with a locking device and push rods can also be installed in a control cabinet with only one door. Here it is possible to use the same door for left and right hinged control cabinet doors without any problems without having to remove and change the locking device, e.g. turned around, must be.

The control cabinet according to the invention is therefore characterized in particular by the fact that the complete locking system is located outside the control cabinet interior lies, ie outside the horizontal frame profiles, so that there is no impairment of the interior. Here, the locking device is completely shielded from the interior of the control cabinet by the U-shaped channel formed by the second door leaf 2.

Claims

claims

1. Switchgear cabinet with at least one door wing (1) attached to the outside of the body, and with a locking device (11) which by means of the at least one door wing (1) with a floor (22) and / or ceiling crossmember (9) of the control cabinet a push rod (12, 12 ') running parallel to a vertical edge of the door leaf and locked with an actuating device (18) arranged on the outside of the door leaf, characterized in that the locking device (11) is arranged on the inside of the door leaf (1) and is fastened by a pin which extends through the door leaf (1) and is connected to the actuating element (18), the pin simultaneously representing the axis of a gearwheel (13) moving the push rod (12, 12 ').

2. Control cabinet according to claim 1, characterized in that the locking device (11) is constructed symmetrically along a longitudinal axis.

3. Control cabinet according to claim 1 or 2, characterized in that the

Gear (13) is openly accessible from the inside of the control cabinet.

4. Switchgear cabinet according to one of claims 1 to 3, characterized in that the push rod (12, 12 ^' ) extends parallel to a bent side edge (10) of the door leaf (1) extending towards the switchgear cabinet interior.

5. Control cabinet according to one of claims 1 to 3, characterized in that engagement elements are arranged above and below the gear moving the push rod.

6. Control cabinet according to claim 1 to 5, characterized in that the locking device is partially covered by a housing.