EP0941391A1

EP0941391A1 - Swivelling lever control that can be padlocked for closing switchboard cabinet doors or the like

Info

Publication number: EP0941391A1
Application number: EP98916885A
Authority: EP
Inventors: Dieter Ramsauer
Original assignee: Individual
Current assignee: Individual
Priority date: 1997-07-04
Filing date: 1998-03-05
Publication date: 1999-09-15
Also published as: DE29711737U1; DE19880799D2; WO1999001633A1; US6293130B1

Abstract

A swivelling lever control that can be padlocked for closing switchboard cabinet doors or the like has a trough (18) set on the outer surface (16) of the door (14) or the like and in which the locking shaft (32) is arranged. The actuating lever (28) is articulated at the free ends of the trough (18) so as to swivel out of the trough (18) about an axis (30) transverse to the shaft axis (32). A projection (46, 52) supported on the swivelling lever control (10) has at its free end an eyelet arranged in such a manner that when the lever (28) is swivelled into the trough, a padlock inserted through the eyelet prevents the actuating lever (28) from swivelling out of the trough. According to the invention, the projection can slide, rotate and/or swivel on the actuating lever (28) up to a second fixed projection on the actuating lever, with which it is then aligned, allowing a padlock to be inserted through both eyelets.

Description

Padlock lockable swivel lever actuation for locking control cabinet doors or the like.

Technical field

The invention relates to a lockable swivel lever actuation for the closure of control cabinet doors or the like. With a trough placed on the outer surface of the door or the like, in which the drive device for the closure, such as gear drive, lever drive, locking shaft, is arranged, to which drive device the actuating lever is arranged so as to be pivotable out of the trough about an axis running parallel to the outer surface of the door, and with a shoulder carried by the pivot lever actuation, at the free end of which an eyelet is arranged such that a padlock hung by the eyelet when the lever is pivoted into the trough swiveling out of the operating lever is prevented (locking position).

State of the art

Such a pivot lever actuation, which can be secured by a padlock, can already be found in catalog page 2-105 of a catalog from DIRAK GmbH & Co. KG, Kaiserstr. 55-59, 58332 Schwelm, known. A disadvantage of this known arrangement is that the attachment attached to the trough there after the pivoting out of the actuating lever lies in the path of movement of the operator's hand holding the actuating lever, and therefore there is a risk that the hand will be injured by this approach.

From FR 2583093 A1 a lever lock is known, which can be locked in a certain position with the help of a padlock. Again, the approach to locking stands out and endangers the hand of the user.

EP 0261 267 B1 discloses a rod lock for sheet metal cabinet doors that works with a pivot lever actuation that can be secured in the pivoted-in state by a cylinder lock. A backup by a Padlock is not provided.

From WO 91/17334 a lockable swivel lever lock is known, which, similar to the already mentioned lock according to EP 0261 267 B1, can be mounted in a thin wall, such as a metal cabinet door, and consists of a base plate that penetrates two through the door leaf Approaches. One approach is used to connect a rod drive or the like. Or for mounting a drive shaft or the articulation shaft for the pivot lever, but at the same time also for fastening one end of the base plate, while the other approach is a depression for receiving the pivot lever in its pivoted Holds position locking cylinder lock device and at the same time serves to attach the other end of the base plate. Here too, however, facilities are missing to additionally secure the lock with a padlock.

The object of the invention is to develop the arrangement mentioned at the outset such that this risk of injury is eliminated and operation is facilitated.

The known arrangement has the further disadvantage that when the padlock is not hooked in, the pivoting lever is only secured against pivoting out if a cylinder lock or socket-operated lock is additionally provided, which is not desired in some cases. If the profile cylinder does not exist, there is the risk in the known arrangement that, by shaking to which the swivel lever lock may be exposed, for example in the event of an earthquake, or during operation, or during transport, the swivel lever swings out so far that the projection provided by the padlock comes from the Area of the lever and gives the swivel lever the opportunity to rotate with the locking shaft. Because of this twisting, there is a risk of the cabinet door opening unintentionally.

Such vibrations occur particularly when the Arrangement is provided on a crane system where often several, z. B. up to 30 switchgears are provided, each of which is enclosed by a control cabinet, which are secured by control cabinet doors.

Another object is therefore to enable a design in which the actuating lever is secured in its pivoted-in position against being swung out unintentionally even if a cylinder lock or the like is not provided and a padlock is not hooked in either.

The object is achieved in that the attachment on the actuating lever is mounted displaceably and / or rotatably and / or pivotably, that the actuating lever carries a second attachment with an eyelet, and that in the locking position of the actuating lever the eyelet of the first attachment is close and in alignment with the Eyelet of the second approach lies.

Through these measures, the previously disturbing approach swings outward with the hand lever, so that when the closure is actuated by means of the lever it no longer obstructs the hand of the operator and the hand can no longer be injured. At the same time, there is the possibility of automatically locking the hand lever in its pivoted-in position, this locking being able to be canceled again in that the approach z. B. is shifted, rotated or pivoted.

According to a development of the invention, the first approach is displaceable parallel to the longitudinal axis of the actuating lever. For example, it can be moved from a first position, in which its eyelet is aligned with the eyelet of the second, non-displaceable attachment, to a position which is offset by approximately one eyelet width.

Further alternative embodiments are contained in further subclaims. Brief description of the invention

The invention is explained in more detail below on the basis of exemplary embodiments which are illustrated in the drawings.

It shows:

Figure 1 is a side view of a flat bar lock with a pivot lever actuation, which is provided with an arrangement according to the invention, in the unlocked position.

Fig. 2 is a top view of the pivot lever actuation of Fig. 1;

3 shows a view from above of the arrangement according to FIG. 1, with a sash device shown in broken lines;

FIG. 4 shows the installation opening associated with the closure according to FIG. 1 in a door; FIG.

FIG. 5 shows a rear view of the pivot lever arrangement according to FIG. 1;

Fig. 6 is an illustration of the pivot lever actuation shown in Fig. 1 in Fig. 1 in connection with a round bar lock, in the locked position;

FIG. 7 is a top view of the arrangement according to FIG. 6; Fig. 8 is an enlarged view of the approach of Figure 6 in the locked position.

Fig. 9 is an enlarged view of the approach of Figure 1 in the unlocked position.

FIG. 10 in a representation similar to FIG. 2 shows a more precise representation of a pivot lever actuation designed according to the invention with a safety device;

11 shows a longitudinal sectional view through the arrangement according to FIG. 10, in a first position of the two eyelet parts;

FIG. 12 is a view similar to FIG. 11 showing the second position of the two eyelet parts;

FIG. 13 is a rear view of the trough of the arrangement according to FIG. 12;

14 is a view similar to FIG. 10 showing another embodiment of the invention;

15 shows an axial sectional view through the embodiment according to FIG. 14;

16 shows the arrangement according to FIG. 15 in connection with a round rod lock;

Fig. 17 shows an arrangement corresponding to FIG. 15, but with a different position of the eyelets and in connection with a flat bar lock;

18 shows a view of the trough part of the embodiment according to FIG. 16;

Fig. 19 in a view similar to Fig. 17 shows yet another embodiment of the security device according to the invention, in the unlocked position;

FIG. 20 is a top view of the arrangement according to FIG. 19;

FIG. 21 shows the embodiment according to FIG. 19, in the locked position;

22 is a rear view of the associated trough;

FIG. 23 shows an enlarged view of the eyelets according to FIG. 19;

FIG. 24 is an enlarged view of the eyelets according to FIG. 21;

FIG. 25 shows, in a representation similar to FIG. 19, yet another embodiment of the invention, in connection with a flat rod lock in the unlocked position;

26 shows the arrangement according to FIG. 25 in connection with a round rod lock, in the locked position; 27 shows an illustration from behind of the associated trough;

FIG. 28 is an enlarged view of the area highlighted in FIG. 25;

29 shows a variant of the embodiment according to FIG. 28.

Best ways of carrying out the invention

In Fig. 1 is a side view of a pivot lever 10 for the lock 12 of a cabinet door 14, housing wall, sheet metal box cover or the like can be seen. With a recess 18 on the outer surface 16 of the cabinet door 14 or the like, in which a locking shaft 20 is arranged which, for example, drives a sash 22, or, alternatively or additionally, flat strip rods 24 (FIG. 1) running along the door leaf or, in yet another application, round rods 26 (FIG. 6). In this context, reference is made to European patent 0 054 225 as an example of use.

At the free end of this locking shaft 20, an actuating lever 28 is pivoted out of the trough 18 about an axis 30 running transversely to the axis of the shaft 20. In the pivoted-out state, as can be seen in FIG. 1, the shaft 20 can be rotated about its axis 32 with the actuating lever 28. During this twisting movement, for example, the existing cam 22 is pivoted out of the door frame of a control cabinet and the door is thereby opened (FIG. 3). Alternatively or simultaneously, in FIG. 1 the ribbon bar 24 is moved upward from its illustrated closed position, as a result of which the idler wheel 36 is released from the edge of a control cabinet housing 34 shown and enables the door leaf 14 to move away from the housing 36 and thereby the door 14 to open.

On the other hand, is shown in the solid lines in Fig. 1 pivoted-in position of the actuating lever 28 of this enclosed by the trough edges and thereby prevented from being rotated out of its position facing the trough. This position is generally the locked position of the pivot lever lock 12.

If the hand lever is directed vertically downwards in this position, its own gravity or friction can be sufficient to hold it in this position. In the case of shaking movements, such as can occur, for example, in crane systems, there is a risk that the hand lever 28 will move away from its pivoted-in position and reach the pivoted-out position shown in broken lines in FIG. 1. In this position, a further rotation about the axis 32 can then be carried out by further shaking movement, whereby u. U. The shutter 12 opens and thus the inside of a cabinet is exposed in an undesirable manner. It is also possible that an unauthorized person swings out the hand lever 28 and brings the lock from its closed position into an open position by rotation about the axis 32 and thereby has the possibility of opening the door 14 of a control cabinet 36. 1, however, the hand lever 28 can be provided with a projection 38 at its free end, into which a cylinder lock 40 can be received. The thumb of the corresponding cylinder can be mounted in such a way that it lies in the closed state with the hand lever 28 swung in against the rear surface 42 of the door leaf 14 and thereby prevents the hand lever 28 from swiveling out of its swung-in position. Alternatively, such a thumb can also lie behind a contact surface formed by a screwed-on box 44. The disadvantage here is that it is not necessarily visible whether the cylinder 40 is excluded or not, i. that is, it is difficult to control the state of the shutter. In addition, cylinder locks have certain disadvantageous properties, such as sensitivity to dust, cumbersome installation, high costs and the like.

In order to create an additional or alternative safeguard, one is carried by the pivot lever actuation, more precisely by its actuating lever 28 Approach 46, see Fig. 1, 8 and 9, provided, at the free end of an eyelet 48 is arranged. This approach 46 is displaceable according to FIG. 9 on the actuating lever 28, according to other embodiments, which will be described, rotatably and / or pivotably, in such a way that it is in the vicinity of its eyelet and in alignment with another eyelet 50 (alternatively Breakthrough or depression) of a second approach 52 can be brought, which is also carried by the pivot lever 28. The second approach 52 can be designed according to FIGS. 2 and 10 so that it encompasses the first approach 46 in a U-shape.

The displaceable extension 46 can be displaced from its offset position shown in FIGS. 1 or 9 or 11 towards the extension 52 against the force of a spring 54 until the two opening openings 48, 50 are aligned with one another, see FIG 8 and 12. In this position, lateral projections 56, which are formed by the inner end of the sliding projection 46, lie behind projections 58, which are formed by the trough 18. As a result, the hand lever is held in the position shown (FIGS. 8 and 12). A shackle of a padlock 60 inserted through the eyelets 48, 50, see for example FIG. 21, holds the shoulder 46 in the position shown in FIG. 8. So that the hand lever 28 is locked in its pivoted position. If you remove the padlock, you can move the extension 46 in the direction of the longitudinal axis of the hand lever, which displacement is supported by the spring 54. As soon as the projection 56 leaves the projection 58 during this displacement movement, the projection 46 is released and the pivot lever can be pivoted outwards, as can be seen in FIG. 1. However, if the displacement movement continues, a lug 62 of the inner end of the extension 46 reaches a projection 64 which is again formed by the trough 28, so that in the end position shown in FIG. 11 the hand lever 28 is again held in the trough. This locking position can also be achieved in that the hand lever which is initially folded out is pressed into the trough, the shoulder 46 in the end position shown in FIG. 11 being automatically pushed down a little against the force of the spring 44, specifically because that the nose 62 has a bevel which extends to a corresponding bevel 66 of the nose 64 sets and leads to a displacement of the two lugs to each other when pressing the hand lever 28. This function has the advantage that, by simply pressing the hand lever 28 into the recess of the hand lever, a locked position is reached without the need to take a padlock, or the locking, if necessary, would have to be carried out by actuating a key in a cylinder lock 40 . By briefly tapping on the projection 46, it can be moved a short distance against the force of the spring 54 and thereby separate the nose 62 from the nose 64, so that the lever can be pivoted out.

However, the pivoted-in position, which is retained by the lugs 62, 64, is not a securely locking position, since any unauthorized person can remove the hand lever from this pivoted-in position. In order to prevent this, according to the invention the attachment 46 can be brought into the position already described, in which the two opening openings 41, 50 are aligned with one another and allow a shackle of a padlock to be inserted. In this position with a padlock attached, the hand lever is locked securely and securely and this locked state is also clearly visible. In addition, of course, a cylinder lock can also be provided, which also enables locking. This additional locking mechanism can be operated by a socket wrench, with a triangle, square or slot for screwdrivers, or have other shapes. Two different keys would then be required for unlocking, which is advantageous in certain applications.

Since both eyelets 66, 52 pivot outward with the actuating lever 28, the surface of the trough 18 which has become free is without a disruptive projection, so that the operator's hand cannot be hindered or injured.

The illustrated embodiments are particularly well suited to be installed in two rectangular opening openings of the same size aligned with the center of the door, as shown in FIG. 4. For this purpose, the trough 18 is directed towards the door leaf 14 and extends through it Protrusions 68, 70, see FIGS. 11 and 13, on which, for example according to FIG. 1, a suitably designed lock case 12 or a case 44 can be placed and screwed on with fastening screws 72, 74, the door leaf then being between the trough 18 and this box 12, 44 is clamped, as shown in FIG. 1. The screws 72, 74 extend into corresponding bores 76, 78, which are formed by the trough 18, which may be made of plastic, see, for. B. Fig. 11.

14 to 18 show a slightly different embodiment. The two lugs 146, 152 arranged on the hand lever 128 are arranged with their eyelets 148, 150 in an aligned position so that the shackle of a padlock is inserted in the direction of the hand lever axis. The extension 146 can now be rotated about an axis 74 by 90 ° into the position shown in FIG. 16. A projection 156 formed by the inner end 157, which, according to FIG. 15, rests on a shoulder 158, which is formed by the trough 118, is then released and enables the hand lever 128 to be pivoted out of the trough 118 Component 152 may be cast in one piece with the hand lever 128. The component 146 consists of four sections, namely a section which contains the bore 148, see also the top view according to FIG. 14, a disk-shaped section which is supported on the surface of the hand lever 128, reference number 176, a bearing component 178 with a round outer circumference , which is rotatably mounted in a corresponding bore of the hand lever 128, and a square projection 180, on which a further component 182 is placed and fastened by means of a countersunk screw 184, namely in a rotationally rigid manner. The component 182 forms the projection 156, which is supported on the projection 158 and fixes the hand lever 128 in the pivoted-in position.

Here, too, the design can be such that the rotary movement takes place against spring force, so that here too, similar to that described in FIGS. 1 to 11, both the position according to FIG. 16 enables the hand lever to be locked and the end position according to FIG 17, while the hand lever 128 can be swung out in between. 18 shows this state of affairs, where the corner 164 realizes this automatic locking which results when it is inserted. The annular space 175 shown in FIG. 15 could accommodate a corresponding spiral spring.

FIGS. 10 to 24 show a further design option. Instead of a movable attachment, as is shown, for example, with 46 in FIG. 1, a pivotable attachment 246 is provided here, which is attached to the hand lever 128. The extension 246 is fastened to the hand lever 228 so as to be pivotable about an axis 277 against the force of a spring 254. Similar to the previously described embodiments, the extension 246 has two locking positions, a regular locking position, in which the eyelet 248 of the extension 246 is aligned with the eyelet 250 of the extension 252, and in which a padlock can be inserted through these two eyelets, see FIG 21, and a second position, which is shown in FIG. 19 and in which a locking also takes place, namely here by a nose 262, which is formed by the projection 256, and which is behind a nose 264 the trough 218 lays. This locking position is automatically achieved by sliding inclined surfaces against each other when the hand lever 228 is pivoted into the trough 218 and pressing this attachment 246 counterclockwise against the force of the spiral spring 254, after which the lugs 262, 264 then slide into their locking position. In the opposite position, in which the two eyelets or openings 248, 250 are aligned with one another, as shown in FIG. 21, so that a padlock can be inserted if necessary, a projection 256 formed by the projection 246 lies behind one of the trough 218 formed projection 258, so that here, too, the hand lever 228 can no longer be folded out of the recess 218 in this position, even if a padlock is not hooked in.

25 to 29 show a slightly different swivel arrangement. It differs from that according to FIGS. 19 to 24 in that the pivot axis point with the associated spring 377 is somewhat closer to the surface of the hand lever 318 and the pivotable extension 346 thereby receives slightly different starting points for the locking. 28 and 29 differ only minimally with regard to the approach for locking when pivoting in without using a padlock.

The embodiment according to FIGS. 19 to 24 has proven to be the cheapest, it is cheaper compared to the embodiment according to FIGS. 25 to 29 because the lugs 246, 252 protrude less far than in the embodiment with the lugs 346, 352 is the case. Compared to the embodiment according to FIGS. 1 to 11, it is cheaper because a displacement is more complicated to implement than a pivoting.

It should be expressly pointed out that the eyelet that is firmly attached to the lever for locking the lever does not necessarily have to conform to the contour of the movable eyelet that creates a grip. When using small padlocks with thin shackles, an overlap between the two eyes of the eyelets is sufficient to ensure that the lever is securely held in its recess.

The swivel lever lock according to the invention can also be used for closures which are already actuated when the actuating lever is swiveled out of the trough, that is to say do not require subsequent rotation of the swivel lever.

Commercial evaluability

The invention can be evaluated commercially in control cabinet construction.

Claims

Patent claims:

1. Swivel lever actuation which can be secured by a padlock for the closure of control cabinet doors or the like, with a recess (18, 118, 218, 318) placed on the outer surface of the door or the like, in which the drive device for the closure, such as gear drive, lever drive, Locking shaft (20) is arranged, on which drive device the actuating lever (28, 128, 228, 328) is pivotably pivoted out about the axis (30) running parallel to the outer surface of the door, and with a shoulder carried by the pivot lever actuation, at the free end of which an eyelet is arranged such that when the lever is pivoted into the trough, a padlock hung through the eyelet prevents the actuating lever from swinging out, characterized in that the shoulder (46, 146, 246, 346) is displaceably (46), rotatable (146) and / or pivotable (246, 346) on the actuating lever that the actuating lever e a second approach (52, 152, 252, 352) with an eyelet (50, 150, 250, 350), and that in the one end position of the approach, in which the pivoting of the operating lever is prevented, the eyelet of the first approach near lies at the eye of the second approach and is aligned with it.

2. swivel lever actuation according to claim 1, characterized in that the displaceable, rotatable and / or pivotable approach in its second end position also prevents the operating lever from pivoting out.

3. swivel lever operation according to one of claims 1 or 2, characterized in that the on the actuating lever slidably, rotatably or pivotally attached attachment in an undercut area (58, 158, 258, 358; 64, 164, 264, 364) of the trough (18th , 118, 218, 318) and reaches behind it with a nose (56, 156, 256, 356; 62, 162, 262, 362).

4. swivel lever operation according to one of claims 1 to 3, characterized in that the movement of the approach against the force of a spring (54, 154, 254, 354).

5. swivel lever actuation according to one of claims 1 to 4, characterized in that the fixed to the actuating lever or with this one-piece approach (52, 252, 352) has a U-shaped shape and between its U-legs the other, movable actuating lever (46 , 246, 346).

6. swivel lever actuation according to one of claims 1 to 5, characterized in that the actuating lever (28, 228, 328) additionally has a cylinder lock locking device, the thumb engages behind a contact surface of the trough (18, 118, 218, 318) locking.

7. swivel lever actuation according to one of claims 1 to 6, characterized in that the trough has two projections extending through the door leaf or the like, one projection forming a locking shaft bearing, while the other projection the undercuts for locking the movable extension (46 , 146, 246, 346) of the actuating lever (28, 128, 228, 328).

8. swivel lever operation according to claim 7, characterized in that in the region of the second projection also the contact surface for a possibly existing cylinder lock is formed.

9. rocker arm actuation according to one of claims 1 to 8, characterized in that the approaches form bores, in the fastening screws for screwable on the trough and have a door leaf between them jammed additional parts, such as lock boxes or attachments (12, 44).

10. swivel lever actuation according to one of claims 1 to 9, characterized in that it is used for actuating a flat bar lock (Fig. 8), a round bar lock (Fig. 10), or a cam lock (Fig. 2).

11. Swivel lever rod lock for control cabinet doors or the like, with a swivel lever actuation which can be secured by a padlock, with a recess (18, 118, 218, 318) placed on the outer surface of the door or the like, in which the drive device for the lock, such as gear drive, lever drive Locking shaft (20) is arranged, on which drive device the actuating lever (28, 128, 228, 328) is pivotably articulated out of the recess (18, 118, 218, 318) about an axis (30) running parallel to the outer surface of the door, and with a lug carried by the pivot lever actuation, at the free end of which an eyelet is arranged such that when the lever is pivoted into the trough, a padlock hung through the eyelet prevents the actuating lever from pivoting out, characterized in that the attachment (46, 146, 246 , 346) is displaceably (46), rotatable (146) and / or pivotable (246, 346) on the actuating lever that the actuating lever carries a second extension (52, 152, 252, 352) with an eyelet (50, 150, 250, 350) and that in the one end position of the extension, in which the actuating lever is prevented from swinging out, the eyelet of the first Approach is close to the eye of the second approach and aligned with this.

12. Closure with pivot lever actuation according to claim 11, characterized in that the displaceable, rotatable and / or pivotable extension in its second end position also prevents the operating lever from pivoting out.

13. closure with swivel lever actuation according to one of claims 11 or

12, characterized in that the lug, which is displaceably, rotatably or pivotably attached to the actuating lever, extends into an undercut area (58, 158, 258, 358; 64, 164, 264, 364) of the trough (18, 118, 218, 318) and this engages behind with a nose (56, 156, 256, 356; 62, 162, 262, 362).

14. Closure with swivel lever actuation according to one of claims 11 to

13, characterized in that the movement of the approach against the force of a spring (54, 154, 254, 354) takes place.

15. closure with swivel lever actuation according to one of claims 11 to

14, characterized in that the lug (52, 252, 352) which is fixedly mounted on the actuating lever or is integral with it and has the other, movable actuating lever (46, 246, 346) between its U-legs.

16. Closure with swivel lever actuation according to one of claims 11 to

15, characterized in that the actuating lever (28, 228, 328) additionally has a cylinder lock locking mechanism, the thumb of which engages behind a contact surface of the recess (18, 118, 218, 318) in a locking manner.

17. closure with pivot lever actuation according to one of claims 11 to

16, characterized in that the trough has two protrusions extending through the door leaf or the like, one protrusion forming a locking shaft bearing, while the other protrusion the undercuts for locking the movable extension (46, 146, 246, 346) of the actuating lever (28, 128, 228, 328).

18. Lock with swivel lever actuation according to claim 17, characterized in that in the region of the second projection also the contact surface is formed for a possibly existing cylinder lock.

19. Closure with swivel lever actuation according to one of claims 11 to

18, characterized in that the lugs form bores in which fastening screws for additional parts which can be screwed onto the trough and have a door leaf jammed between them, such as lock boxes or attachments (12, 44).

20. Closure with swivel lever actuation according to one of claims 11 to

19, characterized in that it is a flat bar lock (Fig. 8), or a round bar lock (Fig. 10), with or without sash lock (Fig. 2), the locking rods are guided on the door leaf by means of rod guides and which by means of with the swivel lever actuation drive device coupled in such a way Rod guides are moved so that they with or carried by them locking devices, such as protrusions, cranks, pins, in or out of the door frame or the like. Receptacles formed and thereby lock or unlock the door in the closed position.