EP1777363A2 - Stop device for a door of a housing - Google Patents

Abstract

The locking device has a clamping part (14) mounted on the inside of the door (10) to rotate about a rotational axis (18) which is mounted eccentric on the clamping part and extends perpendicular to the door . The clamping part can be turned into a locking position where when the door is opened it protrudes over the door and can bear against the casing body to hold it open. The clamping part can be turned 180 degrees from the locking position into a neutral position where it does not protrude beyond the door and when the door is closed can be contained inside the casing body. The clamping part is connected to a holder (22) which holds the clamping part either in the locking or in the neutral position.

Description

The invention relates to a device for locking a door of a housing, in particular a control cabinet, with a housing body to which the door is hinged, wherein a clamping part in the region between the housing body and the door can be introduced.

Such devices for locking a door are known from the general state of the art. For example, to keep a cabinet door in the open position, or to prevent the cabinet door is closed unintentionally, for example by a draft, you help yourself like a wedge or other suitable item. This is inserted into the gap defined by the door hinge between the door and the cabinet body. Thus, the object is trapped between the door and the cabinet body and effectively prevents the door from being closed. Alternatively, you can put a heavy object on the open door so that closing is prevented.

However, this solution has the disadvantage that you need to lock the door an additional object that may be lost under certain circumstances. In addition, these items are quite cumbersome to handle and their use often involves injury.

Furthermore, a locking device is known from the prior art, which is fixedly mounted between the door and the cabinet body. This locking device consists essentially of an elongated metal part, which is hinged to the upper part of the door via a pivot bearing. On the cabinet body, however, a guide for the metal part is provided. The metal part has a slot in which a guide pin is guided. By opening the door, the metal part is pulled out in the direction of the opening door, wherein the guided in the slot pin leads the movement of the metal part. Once the door is in its open position, the pin snaps into a groove in the slot, so that the door is held in the open position. The elongated metal part thus forms a support of the door relative to the cabinet body.

However, this known locking device is constructed relatively complicated and is not easy to handle especially when closing the door. In addition, the known locking device must be designed quite large building especially heavy doors doors to achieve the necessary stability. This in turn leads to an increased space requirement on the upper inside of the door or in the adjacent cabinet carcass area. When assembling this locking device a plurality of mounting holes must be drilled, which is particularly expensive to realize metal doors and drives the production costs in the air.

It is therefore an object of the invention to provide a device for locking a door of a housing, which is particularly simple in construction and easy to handle is. In addition, the locking device according to the invention should require only a small footprint.

This object of the invention is achieved by a device according to the features of claim 1. Advantageous developments are each described in the subclaims.

Accordingly, the clamping part on the inside of the door about a perpendicular to the door extending, on the clamping part eccentrically mounted axis of rotation is arranged rotatably. In this case, the clamping part can be rotated into a locking position in which the clamping part protrudes over this with the door open and can be brought to the housing body to the plant. Due to the eccentrically arranged axis of rotation can be achieved with appropriate shaping of the clamping member that at least in the locking position, a part of the clamping member protrudes beyond the door. This protruding part of the clamping part can be introduced by a simple rotational movement in the region defined by the hinge between the door and the housing body, whereby a closing of the door is effectively prevented. The clamping part is thus clamped between the door and the housing body and thus keeps the door open.

In addition, the clamping part can be rotated in a neutral position. In this neutral position, the clamping part does not protrude beyond the door and can be accommodated within the housing body when the door is closed. The space requirement is relatively small, depending on the size of the clamping part, especially since no protruding attachments are necessary.

According to a preferred embodiment, the locking position is pivoted relative to the neutral position by 180 °. However, the two positions can also be pivoted against each other at a different angle. It is only ensure that in the locking position, the desired clamping action between the door and the housing body is given and in the neutral position, the door is to close.

In an advantageous development, the clamping part can be connected to a holding device which holds the clamping part on the one hand in the locking position and on the other in the neutral position. The holding device ensures that the two positions can be defined and defined.

A preferred embodiment has a guide web attached to the door, which engages in a recess formed on the clamping part. Such a holding device is very simple and also has sufficient reliability.

In a particularly advantageous manner, the axis of rotation can be defined by a pin which is fixed at its one end to the guide web. The pin extends through a mounted perpendicular to the recess and to the symmetry axis of the clamping member eccentrically arranged first through hole in the clamping part. This makes it easy to form the pivot bearing for the clamping part.

According to a preferred embodiment, the pin may have a head at the free end, which is opposite to the end fixed to the guide web, wherein between the head and the clamping part a compression spring is effective, which clamps the guide web in the recess. The compression spring may be formed in a particularly preferred embodiment by a spiral spring into which the pin is inserted.

Thus, the compression spring can be securely supported on the clamping part, can at the Compression spring facing side of the clamping member in the through hole to be formed a paragraph on which the coil spring is supported.

A particularly simple structure is achieved in that the pin is designed as a screw which engages in a threaded portion arranged on the guide web. The screw has the head required for the support of the coil spring and is particularly easy to attach to the guide bar.

According to a preferred embodiment, in particular for use in a control cabinet, the guide bar may be formed by a door-hole bar. Such door hole strips are provided in cabinet doors for the assembly of additional components.

So that the clamping member can be used in doors with right and left stop and at the top and bottom of a door can be provided in an advantageous manner that in the clamping part to the symmetry axis of the clamping member eccentrically arranged second through hole is mounted, which is parallel to the first Through hole and extending perpendicular to the recess. The second through hole reduces the production costs for differently oriented clamping parts.

In a particularly advantageous embodiment, a locking means can be effective between the clamping part and the housing body, which holds the door in the open position. The locking means may be formed on its housing body facing portion, for example, as a recess or projection or corresponding fixing, which automatically causes a fixation in the support position of the door to the relevant area of the housing body, so that the door in the pivoting position against an automatic free pivoting is secured to the outside. It can between the clamping part and the housing body a Schnapspalterung be formed, which causes an automatic fixation and securing the door.

According to a particularly simple embodiment, the clamping part may have a contact region, on which the clamping part comes into contact with the housing body when the door is open. In this case, a particularly secure fixing of the door in the open position is achieved in a simple manner in that the contact region of the clamping part has a trench-shaped recess, in which hineinerstreckt when the door is open a protruding on the housing body support member and supported against the clamping part. In this case, the support part form the frame part of the housing body to which at least one door hinge is attached.

The clamping member may be modified to be used in conjunction with different types of hinges. It can also be provided different clamping parts for different hinges. Therefore, the contact area of the clamping part or the locking means can be adapted to the particular door hinge used.

According to an alternative embodiment, the abutment region of the clamping part may have a step-shaped extension, on which a support part projecting on the housing body is supported when the door is open. This ensures that even a heavy door is held reliably and stably in the open position.

The invention will be explained in more detail below with reference to preferred embodiments with reference to the accompanying drawings.

Show it:

FIG. 1

a schematic partial view of an embodiment of the device for locking a door of a cabinet, wherein the clamping member is shown in the locked position;

FIG. 2

in a schematic partial view of the device according to Figure 1, wherein the clamping member is shown in neutral position;

FIG. 3

3 shows a schematic view and in section along the section line III-III of the device shown in FIG. 2 for locking a door of a control cabinet;

FIG. 4

in a schematic perspective partial view and in exploded view of a locking device which is similar to the embodiment according to Figures 1 to 3, wherein a state is shown, in which the clamping member is inserted in the locking position,

FIG. 5

in a schematic perspective partial view and in exploded view of the embodiment of the locking device shown in Figure 4, wherein a state is shown in which the clamping member is used in neutral position and can be brought into the pivoted-locking position,

FIG. 6

in a schematic perspective partial view of a further embodiment of the locking device, wherein a state is shown in which a clamping member is inserted in the locking position and on the clamping part a protruding on the housing body support member can engage in a trench-shaped recess in the clamping part,

FIG. 7

in a schematic, partial perspective view and in exploded view of the embodiment of the locking device shown in Figure 6, wherein a state is shown in which the clamping member is used in neutral position and can be brought into the pivoted-locking position,

FIG. 8

in a schematic perspective partial view and in exploded view yet another embodiment of the locking device, wherein a state is shown, in which a clamping part, which has a stepped extension, is inserted in the locking position, and

FIG. 9

in a schematic perspective partial view and in exploded view of the embodiment of the locking device shown in Figure 8, wherein a state is shown in which the clamping member is used in neutral position and can be brought into the pivoted-locking position,

Figures 1 and 2 show a schematic view of an embodiment of the device for locking a door 10 of a cabinet. The cabinet has a cabinet body 12, which is only partially shown. On the cabinet body 12, the door 10, which is also shown only partially hinged on pivot hinges 6 and 8 and shown in the open position. At the lower cabinet side edge of the door 10, a clamping member 14 is disposed in the region 16 between the housing body 12 and the door 10.

The clamping member 14 is shown in Figure 1 in the locked position. In this case, the clamping member 14 stands with the door open 10 on this and extends into the area 16 between the cabinet body 12 and the door 10 into it. The clamping part comes on the housing body 12 to the plant. In the locked position, the clamping part 14 thus prevents the closing of the door.

The clamping member 14 is mounted on the inside of the door 10, and can be about a perpendicular to the door 10 extending, with respect to the plane of symmetry 28 of the clamping member 14 eccentrically arranged axis of rotation 18 in the direction of arrow A in the clockwise direction. If the clamping member is further rotated in the direction of arrow A, it enters the neutral position shown in Figure 2, which allows the closing of the door. In this case, the clamping part 14 does not protrude beyond the door 10 and can be received within the housing body 12 when the door 10 is closed. When the clamping member is pivoted back in the direction of arrow B counterclockwise, it returns to the locking position shown in Figure 1. The locking position is pivoted relative to the neutral position by 180 °.

Figure 3 shows a schematic sectional view of the locking device according to the section line III-III in Figure 2. The clamping member 14 is connected to a holding device which holds the clamping member 14 on the one hand in the locked position and the other in the neutral position. The holding device has an attached to the door 10 guide web 20 which engages in a recess 22 which is formed on the door 10 facing the underside of the clamping member 14. The guide web 20 is formed in the illustrated embodiment by a door-hole bar, as is common in the assembly of a cabinet door. The door-hole strip is formed as an elongated, provided with the same distance from one another through holes 21 provident, approximately U- or C-shaped hollow profile and attached to the inside of the door. Inside the hollow profile, a threaded piece 40 is mounted, into which the end 26 of a screw 24 is screwed through the hole 21 and thus fixed to the door-hole strip.

In the clamping part 14 is a perpendicular to the recess 22 mounted, provided to the symmetry axis 28 of the clamping member 14 eccentrically arranged in the figures 1 and 2 first through hole 30. Through the through hole 30, the screw 24 extends. The through hole 30 forms together with the screw 24, the pivot bearing for the clamping part 14 and defines the axis of rotation 18th

The screw 24 has a head 34 at the free end 32, which is opposite the end 26 fixed to the guide web 20 or to the door-hole strip. Between the head 34 and a shoulder 38 in the through hole 30, a coil spring 36 is supported, which clamps the guide web 20 in the recess 22. The screw 24 is inserted into the coil spring 36.

The clamping member 14 can be manually raised against the spring force of the coil spring 36 in the direction of the arrow R. As a result, the recess 22 is disengaged from the guide web 20 or with the door-hole strip. Consequently, the clamping member 14 in the lifted in the direction of arrow R (not shown) state about the rotation axis 18 in the direction of arrow B rotate. In this way, the clamping piece can be transferred from the neutral position shown in Figures 3 and 2 into the locking position shown in Figure 1, and vice versa.

As FIGS. 1 and 2 show, a second through-bore 42 arranged eccentrically to the symmetry axis 28 of the clamping part 14 is mounted in the clamping part 14 and extends parallel to the first through-hole 30 and perpendicular to the recess 22. The second through hole 42 performs the same task as the first through hole 30. The two through holes 30 and 42 serve to ensure that the clamping member 14 in doors with right and left stop and at the top and bottom of a door alike to Use can come.

Figure 4 shows a schematic perspective partial view and in exploded view of a similar embodiment of the locking device, wherein a state is shown in which the clamping member 14 is inserted in the locking position. The clamping part 14 can be attached to the guide bar 56 so that it engages in the recess 22. The guide web 56 is formed in the illustrated embodiment by an elongated, approximately Z-shaped hollow profile. The Z-shaped hollow profile consists of two mutually parallel longitudinal profiles 58 and 60, which are connected and supported by a perpendicular thereto standing longitudinal web 62. The longitudinal profile part 58 is attached directly to the inside of the door. The parallel longitudinal profile part 60 is spaced from the inside of the door by the longitudinal web 62 and provided with through holes 54. On the inside of the door facing side of the longitudinal profile part 56, a threaded piece 40 can be introduced, which can be attached to the guide web 56. For this purpose, a screw 64 is inserted through one of the through holes 54 and screwed into a corresponding threaded bore 66 in the threaded part 40.

In the clamping part 14 two perpendicular to the recess 22 mounted through holes 30 and 42 are provided. In the orientation of the clamping part shown in Figure 4, the screw 24 is inserted into the through hole 30. The screw 24 has the head 34 at one end. Between the head 34 and a (not shown in Figure 4) paragraph within the through hole 30, a coil spring 36 is supported, which clamps the guide web 56 in the recess 22. The screw 24 is inserted into the coil spring 36.

FIG. 5 shows a schematic perspective partial view and an exploded view the embodiment of the locking device shown in Figure 4, wherein the clamping member 14 is inserted in neutral position. This state is shown in FIG. 5 by solid lines and has already been explained with reference to FIG.

With dashed or thin lines is further shown in Figure 5 left of the neutral position that the clamping member 14 about the pivot axis 18 which is defined by the screw 24, can be pivoted into locking position, similar to that already with reference to the figures 1 and 2 has been described. The arrow C indicates the pivoting direction from the locking to the neutral position.

The clamping part 14 has on one side a contact region 44, on which the clamping part 14 is brought to the casing body 12 when the door 10 is open. The contact area is flat and serves to support the door 10 with respect to the housing body 12.

FIG. 6 shows a schematic perspective partial view of a further embodiment of the locking device, the clamping part 14 being inserted in the locking position. The housing body 44 facing the bearing portion 44 of the clamping member 14 has a parallel to the guide web 56 ersteckende, trench-shaped recess 46. In this, a projecting on the housing body 12, parallel to the recess 46 ersteckendes support member 48 then hineinerstrecken and support against the clamping member 14 when the door 10 is moved in the closed position according to arrow D.

The support member 48 cooperates with the trench-shaped recess 46 as a locking means which secures the door. It comes with a movement of the door in the direction of arrow D to a snapping of the support member 48 in the recess 46, whereby the door is held independently in the open position.

The support member 48 forms the frame part of the housing body 12 to which the door hinges are attached, of which in Figure 6, only the door hinge is shown by the reference numeral 8. The clamping part 14 is adapted to the door hinge 8. The size and shape of the clamping member 14 and the abutment portion 44 is determined inter alia by the opening angle of the hinge 8 and by the distance between the housing body 12 and the door 10.

FIG. 7 shows a schematic perspective partial view and an exploded view of the embodiment of the locking device shown in FIG. 6, wherein the clamping part is inserted in the neutral position. This state is shown in FIG. 7 by solid lines and has already been explained with reference to FIG.

With dashed or thin lines is further shown in Figure 7 to the left of the neutral position that the clamping member 14 can be pivoted in the locked position, similar to what has already been described with reference to FIG 5. The arrow C indicates the pivoting direction from the locking to the neutral position.

FIG. 8 shows a schematic perspective partial view and an exploded view of yet another embodiment of the locking device, the state being shown in which the clamping part is inserted in the locking position.
The contact region 44 of the clamping part 14 has a stepped extension 50. On the housing body 12 is a support member 52 before. On the step-shaped extension 50 of the clamping part, the support part 52 is supported when the door 10 is open.

The support member 52 forms the frame part of the housing body 12 to which the door hinges are mounted, of which in Figure 8, only the door hinge is shown by the reference numeral 8. The configuration of the stepped extension 50 and the support member 52 is adapted to the door hinge 8. The size and the shape is among other things also determined by the opening angle of the hinge 8 and the distance between the housing body 12 and the door 10.

FIG. 9 shows in a schematic perspective partial view and in an exploded view the embodiment of the locking device shown in FIG. 8, the state being shown in which the clamping part is inserted in the neutral position. This state is shown in FIG. 9 by solid lines and has already been explained with reference to FIG.

With dashed or thin lines is further shown in Figure 9 left of the neutral position that the clamping member 14 can be pivoted in the locked position, similar to what has already been described with reference to Figures 5 and 7. The arrow C indicates the pivoting direction from the locking to the neutral position.

Claims (20)

Device for locking a door (10) of a housing with a housing body (12) on which the door (10) is articulated, wherein a clamping part (14) in the region (16) between the housing body (12) and the door (10 ) can be introduced,
characterized in that
the clamping part (14) on the inside of the door (10) about a perpendicular to the door (10) extending, on the clamping part (14) eccentrically mounted axis of rotation (18) is rotatably arranged, wherein the clamping part is rotatable in a locking position, in the the clamping part (14) protrudes beyond the door (10) and can be brought to rest on the housing body (12). Device according to claim 1,
characterized in that
wherein the clamping part (14) is rotatable in a neutral position in which the clamping part (14) does not protrude beyond the door (10) and can be received within the housing body (12) when the door (10) is closed. Apparatus according to claim 1 or 2,
characterized in that
pivoted the locking position relative to the neutral position by 180 ° is. Device according to one of claims 1 to 3,
characterized in that
the clamping part (14) with a holding device (20, 22) is connected, which holds the clamping part (14) on the one hand in the locked position and the other in the neutral position. Device according to claim 4,
characterized in that
the holding device has a guide web (20, 56) attached to the door (10), which engages in a recess (22) formed on the clamping part (14). Device according to claim 5,
characterized in that
the axis of rotation (18) is defined by a pin (24) which is fixed at its one end (26) on the guide web (20, 56), and in that in the clamping part (14) a perpendicular to the recess (22) attached to the axis of symmetry (28) of the clamping part eccentrically arranged first through hole (30) is provided, through which the pin (24) extends through and which forms the pivot bearing for the clamping part (14). Device according to claim 6,
characterized in that
the pin (24) has a head (34) at the free end (32) which is opposite the end (26) fixed to the guide web (20, 56), and that between the head (34) and the clamping part (14) a compression spring (36) is effective, which the guide web (20, 56) in the recess (22) clamps. Device according to claim 7,
characterized in that
the compression spring (36) is formed by a spiral spring into which the pin (24) is inserted. Device according to claim 8,
characterized in that
on the pressure spring (36) facing side of the clamping part (14) in the through hole (30) has a shoulder (38) is formed, on which the coil spring (36) is supported. Device according to one of claims 6 to 9,
characterized in that
the pin (24) is formed by a screw which engages in a threaded part (40) arranged on the guide web (20, 56). Device according to one of claims 5 to 10,
characterized in that
the guide web (20, 56) is formed by a door-hole strip. Device according to one of claims 6 to 11,
characterized in that
in the clamping part to the symmetry axis (28) of the clamping part (14) eccentrically arranged second through hole (42) is mounted, which extends parallel to the first through hole (30) and perpendicular to the recess (22). Device according to one of claims 1 to 12,
characterized in that
between the clamping part (14) and the housing body (12) a locking means is effective, which holds the door in the open position. Device according to one of claims 1 to 13,
characterized in that
the clamping part (14) has a contact region (44), on which the clamping part (14) can be brought into contact with the housing body (12) when the door (10) is open. Device according to claims 13 and 14,
characterized in that
the locking means on the contact area (44) of the clamping part (14) is formed. Device according to one of claims 13 to 15,
characterized in that
the abutment region (44) of the clamping part (14) has a trench-shaped recess (46) into which a supporting part (48) protruding on the housing body (12) extends when the door is open (10) and is supported against the clamping part (14). Device according to one of claims 13 to 16,
characterized in that
a snap-in holder is formed between the clamping part (14) and the housing body (12). Device according to claim 16 or 17,
characterized in that
the support part (48) forms the frame part of the housing, to which at least one door hinge (8) is attached. Device according to one of claims 13 to 18,
characterized in that
the locking means or the abutment region (44) of the clamping part (14) is adapted to the door hinge (8). Device according to one of claims 14 to 19,
characterized in that
the abutment region (44) of the clamping part (14) has a stepped extension (50) on which a support part (52) projecting on the housing body (12) is supported when the door (10) is open.

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