EP3665351B1 - Hinge for hangable sheet metal cabinet doors or walls - Google Patents

Description

The invention relates to a hinge for removable sheet metal cabinet doors or walls, comprising a first hinge part or frame hinge part which can be fastened to the door or cabinet frame and a second hinge part or door hinge part which can be fixed to the door leaf or cabinet wall, which hinge parts are connected to one another in an articulated manner by means of a hinge pin, with a latch-like tongue which is arranged in the second hinge part and can be displaced against spring force, which tongue engages around the hinge pin which is guided through the finger-like ends of the first hinge part and, together with the hook held by the door part, centrally supports it.

Such a hinge arrangement for removable sheet metal cabinet doors or walls is known from the German utility model DE 20 2015 001 918 U1 and the EP 0 274 549 A1 This hinge, and other known hinges, are suitable for combining a hinge and locking function, allowing for flexible design options such as changing the stop side and/or locking side.

The aim is to improve the state of the art in such a way that an additional lifting and pressing function in one area of application extends the already known hinges with an additional closing function.

The object is achieved in that a lifting device is provided which engages around the hinge pin guided through finger-like ends of the first hinge part and supports it centrally together with the latch-like tongue, wherein by means of a key, such as a double-bit key, the engaging part of the second hinge part can be displaced perpendicular to the plane of the door leaf or the cabinet wall to which the hinge is fastened or screwed.

The second hinge part forms slotted guide walls that guide the lifting device and enclose it in a U-shape.

In one embodiment, the outer walls form feet with which they are attached to the door leaf, so that the raising and lowering of the outer walls also causes the door leaf or the cabinet wall to be raised and lowered.

In a further embodiment, a link supports a turntable provided in the base area with a worm gear, into which worm gear a projection extending from the underside of the actuator is inserted.

In a further embodiment, the attachment is formed by a cap screw that is screwed into the underside of the actuator. This simplifies assembly of the arrangement. In order to be able to carry out the two movements, namely the raising of the walls on the one hand and the displacement of the tongue on the other hand, separately from one another, the tongue has an L-shaped cutout through which a pin arranged in the walls is provided. This pin guides the tongue when the actuator is rotated in such a way that when rotated by 180° in a first direction (e.g. clockwise or right-hand rotation), the walls are raised, and when rotated a further 180° in the same direction (clockwise), the tongue is pulled into the guides.

The direction of the L-shaped legs determines the movement of the tongue parallel and perpendicular to the door leaf plane. The result is a hinge, driven by a suitable key in a rotatable actuation accessible from the outside, a link of the hinge, which performs a lifting or pressing movement from or towards the frame part without affecting the hinge function. This is achieved by a pin located in the door part, which engages in a curved track located on the outer circumference of the actuation and thus allows the lifting or pressing movement. The rotary disc in conjunction with the driver and The spacer ensures that the latch or tongue can only be retracted by a further turning of the key after the lifting movement, thus separating the hinge and preventing the hinge from functioning. Furthermore, the latch or tongue is equipped with a freewheel and spring force, allowing the locking process to be performed without a key.

In addition to the already familiar hinge and locking function, the lifting and lowering function of the innovative hinge significantly increases closing comfort when the seal is under pressure and/or provides pressure relief before the opening process. This, in turn, addresses a potential safety aspect when the internal housing pressure is high or allows for seal compression relevant to the protection class.

The invention is explained in more detail using embodiments shown in the drawings.

Fig. 1

in einer Explosionsdarstellung Einzelteile des erfindungsgemäßen Scharniers;

Fig. 2

das Scharnier im zusammengebauten Zustand mit den Einzelteilen der Fig. 1, wobei sich das Scharnier in Ruhestellung befindet;

Fig. 3

in ähnlicher Darstellung wie Fig. 2 das Scharnier nach Montage in einem Blechschrank in Ruhestellung;

Fig. 4

das Scharnier mit hochgefahrenem Türteil nach Drehung um 180°;

Fig. 5

in einer perspektivischen Ansicht das Scharnier nach einer erster Verwendung vor dem weiteren Drehen um 180° im Uhrzeigersinn zum Herausfahren durch Ziehen der Zunge;

Fig. 6

den Zustand mit vorgeschobener Zunge (Scharnierfunktion);

Fig. 7

den Zustand mit zurückgezogener Zunge (Scharnierteile lassen sich trennen)

Fig. 8

eine Draufsicht auf das erfindungsgemäße Scharnier in abgesenkter Stellung;

Fig. 9

das Scharnier der Figur 8 nach Teilung in die zwei Scharnierteile;

Fig. 10

eine Querschnittsansicht des erfindungsgemäßen Scharniers in geschlossener Stellung (Scharnierfunktion);

Fig. 11

eine ähnliche Ansicht wie Figur 10 in abgesenkter Stellung nach Drehung um 180°;

Fig. 12

die Stellung nach Drehung um 360°;

Fig. 13

eine Seitenansicht auf das auf dem Schaltschrank montierte Scharnier mit Dichtung;

Fig. 14

die Anordnung der Figur 13 nach Einstecken eines Betätigungsschlüssels und Drehen desselben um 180° im Uhrzeigersinn (Tür führt einen Hub aus), (Druckausgleich, Dichtung ist entspannt);

Fig. 15 A

eine vergrößerte Darstellung der Zunge in Verriegelungsstellung,

Fig. 15 B

eine ähnliche Ansicht wie Figur 13 zur Darstellung der inneren Anordnung des Scharniers;

Fig. 16 A

eine ähnliche Ansicht wie Figur 15 A, jedoch mit zurückgezogener Zunge,

Figur 16 B

eine ähnliche Ansicht wie Figur 15 A, des Zustandes der Figur 16 A;

Fig.17 A und Fig. 17 B

eine ähnliche Ansicht wie Figur 16B, jedoch das Scharnier auseinander genommen;

Fig. 18

eine perspektivische Ansicht auf das montierte und verschlossene Scharnier;

Fig. 19

eine perspektivische Ansicht des montierten und entspannten Scharniers mit eingestecktem Schlüssel;

Fig. 20

das Scharnier nach montierter und entspannter Stellung ohne Schlüssel;

Fig. 21

das montierte Scharnier nach Trennung der Scharnierteile;

Fig. 22

eine Seitenansicht des Scharniers in Scharnierfunktion und

Fig. 23

eine perspektivische Darstellung des Scharniers der Figur 22.

It shows:

Fig. 1

in an exploded view, individual parts of the hinge according to the invention;

Fig. 2

the hinge in assembled condition with the individual parts of the Fig. 1 , with the hinge in the rest position;

Fig. 3

in a similar representation as Fig. 2 the hinge in its rest position after installation in a sheet metal cabinet;

Fig. 4

the hinge with the door part raised after turning 180°;

Fig. 5

in a perspective view the hinge after a first use before further turning 180° clockwise to extend by pulling the tongue;

Fig. 6

the state with the tongue pushed forward (hinge function);

Fig. 7

the state with the tongue retracted (hinge parts can be separated)

Fig. 8

a plan view of the hinge according to the invention in the lowered position;

Fig. 9

the hinge of the Figure 8 after division into the two hinge parts;

Fig. 10

a cross-sectional view of the hinge according to the invention in the closed position (hinge function);

Fig. 11

a similar view to Figure 10 in lowered position after rotation of 180°;

Fig. 12

the position after rotation of 360°;

Fig. 13

a side view of the hinge with seal mounted on the control cabinet;

Fig. 14

the arrangement of the Figure 13 after inserting an operating key and turning it 180° clockwise (door performs a stroke), (pressure equalization, seal is relaxed);

Fig. 15 A

an enlarged view of the tongue in the locking position,

Fig. 15 B

a similar view to Figure 13 to show the internal arrangement of the hinge;

Fig. 16 A

a similar view to Figure 15 A , but with tongue retracted,

Figure 16 B

a similar view to Figure 15 A , the condition of the Figure 16 A ;

Fig.17 A and Fig. 17 B

a similar view to Figure 16B , but the hinge was taken apart;

Fig. 18

a perspective view of the assembled and closed hinge;

Fig. 19

a perspective view of the assembled and relaxed hinge with the key inserted;

Fig. 20

the hinge after being assembled and released without a key;

Fig. 21

the assembled hinge after separating the hinge parts;

Fig. 22

a side view of the hinge in hinge function and

Fig. 23

a perspective view of the hinge of the Figure 22 .

In Figure 1 is an exploded view of the hinge 8 according to the invention, while Fig. 2 the assembled hinge 8 and Fig. 3 the hinge after installation in a door.

The hinge according to the invention for removable sheet metal cabinet doors or walls comprises a first hinge part or frame hinge part 10 which can be fastened to the door or cabinet frame 34, and a second hinge part 16 or door hinge part which can be fixed to the door leaf or cabinet wall 38, which hinge parts 10, 16 are connected to one another in an articulated manner by means of a hinge pin 14. The hinge comprises a latch-like tongue 26 which is arranged in the second hinge part 16 and is displaceable against spring force 24. Furthermore, a lifting device is provided which engages around the hinge pin 14 which is guided through finger-like ends 42 of the first hinge part 10 (see hook 46) and centrally supports it together with the tongue 26. The encompassing part of the lifting device (hook 46) is connected to the hinge pin 14 by means of a Key 40, like a double-bit key, can be moved perpendicularly to the plane 62 of the door leaf or cabinet wall 16 via an actuation 20.

The door hinge part 16 forms slot-like guide walls 56, 58, which represent a guide for the lifting device and enclose it in a U-shape.

The lifting device supports the key holder 20 and the turntable 22 has a worm gear 64 into which a projection extends from the underside of the actuation 20.

The attachment is formed by a cap screw 30, which is screwed into the underside of the turntable 22. This facilitates the assembly of the arrangement in its movement. In order to be able to carry out the two movements, namely the raising of the guides on the one hand and the displacement of the tongue on the other hand, separately from each other, the tongue 26 has an L-shaped cutout 60, which guides the tongue when the actuator is rotated in such a way that when rotated by 180° in a first direction (e.g. clockwise or right-hand rotation), the guides are raised, and when rotated further by 180° in the same direction (clockwise), the tongue is pulled into the guides (see Figs. 10, 11, 12 ).

This results in a hinge 9 which, driven by a suitable key 40 in an externally accessible rotatable actuation 20, allows a link 18 of the hinge to extend a lifting or pressing movement from or to the frame part without affecting the hinge function. This is achieved by a pin 32 located in the door part, which engages in a curved track located on the outer circumference of the actuation and thus allows the lifting or pressing movement. The rotary disc 22, in conjunction with the driver and spacer 28, ensures that the latch 26 can only be retracted by a further rotating movement of the key after the lifting movement, thus causing the hinge to separate and preventing the hinge function. Furthermore, the tongue is equipped with a freewheel, so that the locking process can be carried out without a key, supported by spring force.

List of reference symbols:

8

hinge

10

Frame part, first hinge part

12

spacer roller

14

Knurled pin 6x80

16

Door part, second hinge part

18

backdrop

20

activity

22

turntable

24

Spring 0.25x3.2x20.7

26

Tongue

28

spacers

30

screw

32

Knurled pin 3x34

34

door frame

36

seal

38

door panel

40

Double-bit key

42

finger-like end

44

Confirmation

46

Hook

48

feet

50

drilling

52

screw

54

leg

56

Guide wall of the lifting device

58

interior wall

60

L-neck

62

Level of the door leaf

Claims (5)

1. Hinge for detachable sheet metal cabinet doors or walls, comprising a first hinge part or frame part (10) which can be fixed to the door or cabinet frame (34), and a second hinge part (16) or door part which can be fixed to the door leaf or cabinet wall (38), which hinge parts are connected to one another in an articulated manner by means of a hinge pin (14), with a latch-like tongue (26) arranged in the second hinge part (16) so as to be displaceable against spring force (24),
   characterised by a lifting device which engages around the hinge pin (14), the hinge pin being guided through finger-like ends (42) of the first hinge part (10), and supports it centrally together with the latch-like tongue (26), wherein the engaging part of the lifting device can be displaced perpendicular to the plane of the door leaf or cabinet wall by means of a key (40), such as a double-bit key, via an actuator (20), and wherein the second hinge part (16) forms slotted-guide-like guide walls (56, 58) which form a guide for the lifting device and enclose it in a U-shape.
2. Hinge according to claim 1, characterised in that the walls (58) form feet (48) with which they are fixed to the door leaf.
3. Hinge according to claim 1, characterised in that a slotted guide (18) of the lifting device in the base region supports a rotating disc (22) with a worm track, into which worm track an extension dips, which extension extends from the underside of the actuation (20).
4. Hinge according to claim 3, characterised in that the extension is formed by a cap screw (30) which is screwed into the underside of the actuator (20).
5. Hinge according to claim 4, characterised in that the tongue (26) is guided during rotation of the actuator (20) in such a way that during rotation through 180° in a first direction (e.g. clockwise direction, right-turn rotation) the walls (58) are lifted up, that during further rotation through 180° in the same direction the tongue (26) is drawn into the slotted guide (18).

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