Hinge for detachable sheet metal cabinet doors or walls

Abstract

The invention relates to a hinge for detachable sheet metal cabinet doors or walls, comprising a first hinge part or frame part that can be secured to the door or cabinet frame, and a second hinge part or door hinge part that 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, and having a latch-type tongue that is arranged in the second hinge part such that it can move against a spring force, characterised by a lifting device which encompasses the hinge pin guided through finger-type ends of the first hinge part and which centrally supports the hinge pin together with a hook retained by the door part, such that the lifting device moves the encompassing part of the second hinge part perpendicular to the plane of the door leaf or cabinet wall, via actuation, by means of a key, such as a double bit key.

Claims

1. A hinge for detachable cabinet doors, the hinge comprising: a first hinge part attachable to the cabinet, the first hinge part having two ends each having through holes, the two ends being spaced apart and configured to receive a hinge pin therethrough and through a space between the two ends; and a second hinge part attachable to a cabinet door, the second hinge part comprising: a tongue; a spring biasing the tongue in a first direction; a lifting device with a hook; a part attachable to the cabinet door including guide walls for the lifting device; and a rotatable actuator that has an exposed drive recess; wherein the hinge pin is configured to connect the first and second hinge parts in a rotatable manner, wherein the hinge pin is configured to be engaged in the space between the two ends by the hook and the tongue, wherein the lifting device and the part attachable to the cabinet door are configured such that the lifting device and the part attachable to the cabinet door move relative to each other in a direction perpendicular to the surface of the cabinet door, and wherein the tongue is configured to move relative to the part attachable to the cabinet door in a direction along the surface of the cabinet door.

2. The hinge according to claim 1, wherein the guide walls at least partially encompass the walls of the lifting device in a U-shaped manner.

3. The hinge according to claim 2, wherein the walls of the part attachable to the cabinet door form feet, the feet being attached to the cabinet door leaf.

4. The hinge according to claim 2, wherein the guide walls receive a turntable therein, the turntable defining a track, wherein a projection protrudes into the track of the turntable, thereby engaging the turntable with the actuator.

5. The hinge according to claim 4, wherein a head screw is screwed into the bottom of the turntable.

6. The hinge according to claim 5, wherein the actuator is configured to rotate 360°, wherein upon a first 180° rotation of the actuator in a first direction, the tongue is configured to be guided such that the walls of the second hinge part are configured to be raised in relation to the tongue, and wherein upon a second 180° rotation of the actuator in the first direction, the tongue is configured to be drawn into the guide walls.

7. The hinge according to claim 6, wherein upon the second rotation of the actuator, the tongue is configured to retract against the biasing of the spring, moving relative to the part attachable to the cabinet door, thereby permitting separation of the second hinge part from the first hinge part.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

(1) The invention is now explained in more detail using exemplary embodiments which are shown in the drawings.

(2) These show as follows:

(3) FIG. 1 the individual parts of the hinge according to the invention in exploded view;

(4) FIG. 2 the hinge in the assembled state with the individual parts of FIG. 1, wherein the hinge is in the rest position;

(5) FIG. 3 the hinge after mounting in a sheet metal cabinet in the rest position, in a representation similar to FIG. 2;

(6) FIG. 4 the hinge with the second hinge part raised after a rotation through 180′;

(7) FIG. 5 a perspective view of the hinge following an initial use before the further rotation through 180° in the clockwise direction for moving out through pulling of the tongue;

(8) FIG. 6 the state with the tongue advanced (hinge function);

(9) FIG. 7 the state with the tongue retracted (hinge parts can be separated);

(10) FIG. 8 a top view of the hinge according to the invention in the lowered position;

(11) FIG. 9 the hinge of FIG. 8 following separation into the two hinge parts;

(12) FIG. 10 a cross-sectional view of the hinge according to the invention in the closed position (hinge function);

(13) FIG. 11 a similar view to FIG. 10 in the lowered position following rotation through 180′;

(14) FIG. 12 the position following rotation through 360°;

(15) FIG. 13 a side view of the hinge mounted on the switch cabinet with seal;

(16) FIG. 14 the arrangement of FIG. 13 following insertion of an actuator key and clockwise rotation of this through 180° (door lifts) (pressure equalization, seal is relaxed);

(17) FIG. 15 A an enlarged representation of the tongue in the locking position;

(18) FIG. 15 B a similar view to FIG. 13 representing the internal arrangement of the hinge;

(19) FIG. 16 A a similar view to FIG. 15 A, but with the tongue retracted;

(20) FIG. 16 B a similar view to FIG. 15 A of the state of FIG. 16 A;

(21) FIG. 17 A and FIG. 17 B a similar view to FIG. 16 B, but with the hinge taken apart;

(22) FIG. 18 a perspective view of the mounted and closed hinge;

(23) FIG. 19 a perspective view of the mounted and relaxed hinge with key inserted;

(24) FIG. 20 the hinge in the mounted and relaxed position without key;

(25) FIG. 21 the mounted hinge following separation of the hinge parts;

(26) FIG. 22 a side view of the hinge in the hinge function; and

(27) FIG. 23 a perspective representation of the hinge of FIG. 22.

DESCRIPTION OF THE INVENTION

(28) In FIG. 1 an exploded view of the hinge 8 according to the invention is illustrated, while FIG. 2 illustrates the assembled hinge 8 and FIG. 3 the hinge 8 after mounting in a door

(29) The hinge 8 according to the invention for detachable sheet metal cabinet doors or walls, comprises a first hinge part first hinge part 10 that can be attached to the door or cabinet frame 34, and a second hinge part 16 that 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 a hinge pin 14 with a spacer roller 12, and having a latch-type tongue 26 that is arranged in the second hinge part 16 such that it can move against a spring force within the spring 24, a lifting device 18, which encompasses the hinge pin 14 guided through the finger-type ends 42 of the first hinge part 10 and which centrally supports the hinge pin with a hook 46 formed by the lifting device 18, the lifting device moves the encompassing part or hook of the second hinge part 16 perpendicularly to the plane 62 of the door leaf or cabinet wall 16 by means of a key 40, such as a double bit key, via an actuator 20.

(30) The second hinge part 16 forms guide walls 58, which provide a guide for the lifting device and encompass this in a U-shaped manner. The guide walls 58 are formed by a part 56 of the second hinge part 16. The second hinge part also includes feet 48 with bore holes 50 for attaching the second hinge part 16 to the cabinet door by screws 52.

(31) The lifting device supports the key housing 20 and the turntable 22 has a track 64 in which a projection 66 is inserted which protrudes from the bottom of the actuator 20.

(32) The projection is formed by a head screw 30, which is screwed into the bottom of the actuator. This facilitates mounting of the arrangement in its movement. In order to be able to perform both movements, namely on the one hand the lifting of the guide walls 58 and on the other hand the moving of the tongue independently of one another, the tongue 26 has an L-shaped cutout 60, which guides the tongue upon rotation of the actuator such that upon rotation through 180° in a first direction (e.g. clockwise direction or right rotation) the guide walls 58 are raised, and that by rotation through a further 180° in the same direction (clockwise direction) the tongue is drawn into the guide walls 58 (see FIGS. 10, 11, 12).

(33) This results in a hinge 9, which driven by a suitable key 40 in a rotatable actuator 20 accessible from the outside, allows a guide wall 58 of the hinge to perform a lifting or pressing movement away from or towards the first hinge part 10, without affecting the hinge function. This is achieved by a pin 32 sitting in the second hinge part, which engages in a curved track located on the outer periphery of the actuator and thus allows the lifting or pressing movement. The turntable 22 in conjunction with carrier and spacer 28 ensures that only after the lifting movement the tongue 26 can be retracted by a further rotational movement of the key and thus a separation of the hinge is caused, and the hinge function is inhibited. The tongue is also provided with an override so that supported by a spring force the closing operation can be carried out without a key.

LIST OF REFERENCE NUMERALS

(34) 8 Hinge 10 First hinge part 12 Spacer roller 14 Hinge pin 6×80 16 Second hinge part 18 Lifting device 20 Actuator 22 Turntable 24 Spring 0.25×3.2×20.7 26 Tongue 28 Spacer 30 Screw 32 Dowel pin 3×34 34 Cabinet/door frame 36 Seal 38 Cabinet door/Door leaf 40 Double bit key 42 Finger-type ends 46 Hook 48 Feet 50 Bore hole 52 Screw 56 Part 58 Guide walls 60 L-cutout 62 Door leaf plane 64 Track 66 Projection