EP2634335B1 - Door hinge for a covered assembly between door frame and door wing - Google Patents

Description

The present invention relates to a door hinge for a concealed arrangement between the door frame and door leaf with a first and a second fastening part, which are insertable in recesses on the narrow side of the door leaf and in the door frame, and a first hinge bracket and a second hinge bracket, which is around a vertical Rotary axis are rotatably connected, wherein at receiving spaces of the fastening parts in each case the end of a hinge bracket is pivotally mounted about a vertical axis of rotation and the end of the other hinge bracket is rotatably and longitudinally movably guided.

A door hinge of the construction described is off EP 1 308 592 A2 known. In the known door hinge one of the two hinge brackets is fork-shaped with two adjoining a rear connecting portion fork arms. The other hinge bracket has a central piece, to which at both ends connect wider, up and down projecting end portions of the bracket. The two hinge brackets extend in the vertical direction over the same height and extend directly to the fasteners zoom. Even if the described embodiment of the door hinge has proven to be very advantageous, there is a need in very heavy doors to further increase the stability. Thus, the two spaced fork arms of a hinge bracket can deform to a certain extent under a large load. Even with an additional support in the form of a sleeve or the like between the fork arms this disadvantage can not be completely avoided in very heavy doors.

Another door hinge with the features described above is made EP 1 574 649 A2 known, wherein the hinge bracket are designed as identical connecting elements, which form a U-shape with a connecting web and vertically aligned legs. In order to connect the identical hinge bracket together, one of the hinge bracket is rotated by 180 °, so that, starting from the connecting web, the vertically oriented legs of the turned hinge bracket do not extend upwards but downwards. The two hinge straps can then be joined together in the manner of a plug connection. Due to the leg extending in the vertical direction, the receiving spaces of the fastening parts in the vertical direction are completely bridged. By the U-shape, however, remains at a very high weight load a certain elasticity between the aligned in the vertical direction legs and the interposed connecting web.

Another generic door hinge is off EP 1 063 376 B1 known. In the known embodiment, the hinge bracket each extend in half over the vertical region of the door hinge, wherein the height adjustment of the door leaf, the distance between the hinge brackets is variable. For this purpose, the axis of rotation between the hinge brackets is designed as an adjusting spindle. The dimensional stability of the known arrangement is in need of improvement. The door hinge is suitable for installation in light door wings, z. B. in the furniture sector.

The present invention has for its object to provide a door hinge for a concealed arrangement between the door frame and door, which is suitable due to its construction in particular extent for heavy doors and yet can be easily manufactured and assembled.

Starting from a door hinge with the features described above, the object is achieved in that the first hinge bracket extends in the receiving space of the first fastening part in the vertical direction over a shorter length than the second hinge bracket and that the receiving space of the first fastening part has a matched to the different length of the hinge bracket step shape with a step above and a step below the first hinge bracket. Expediently, in the vertical direction, the total height of the two steps essentially corresponds to the difference in length of the first hinge bracket and of the second hinge bracket in the receiving space of the first fastening part.

According to the prior art, the hinge straps in the receiving spaces usually extend over the same length. The length is to be determined within the receiving spaces at the respectively in the vertical direction furthest apart surfaces, so that even with a fork-shaped hinge bracket results in the same length at both ends, regardless of the recess between the fork arms. In contrast, according to the present invention, the first hinge bracket within the receiving space of the first attachment part in the vertical direction is shorter than the second hinge bracket. In order to avoid correspondingly unsupported areas, however, the receiving space has an adapted step shape. The receiving space is correspondingly shaped so that it can directly adjoin the end faces of the second hinge bracket opposite in the vertical direction as well as the steps on the opposite end surfaces of the first hinge bracket in the vertical direction. Preferably, only a narrow, the movement enabling gap is provided in the vertical direction, but this gap can also be used for the arrangement of sliding discs or the like.

The second hinge bracket has a closed around its circumference opening through which extends the first hinge bracket. The opening is thus formed between two vertical end portions and two spaced-apart horizontal webs. The shape of the second Hinge bracket can therefore be referred to in the broadest sense as O-shaped or frame-shaped. Since the opening for the first hinge bracket is completely closed around its circumference, unlike a U-shape or a fork shape there is no risk of deformation.

Since only the first fastening part associated end of the first hinge bracket must be inserted through the opening of the second hinge bracket in the described inventive form of the hinge bracket, the second fastening part associated end of the first hinge bracket extends in the vertical direction over a greater length. Thus, it is provided according to the invention that the first and the second hinge bracket extend in the receiving space of the second fastening part in the vertical direction over the same length. A step shape is thus not necessary on the second fastening part.

According to a preferred embodiment of the invention it is provided that the first hinge bracket, starting from a first fastening part associated end has a central portion and an opposite end, wherein the first fastening part associated end and the central portion extending in the vertical direction over the same length and wherein the opposite end extends in a vertical direction beyond the central portion. This results in a rotated by 90 ° T-shape.

In a (rotated by 90 °) T-shape of the first hinge bracket and an O-shape of the second hinge bracket, the first hinge bracket is inserted with its first fastening part associated end through the opening. The connection of the first hinge bracket and the second hinge bracket then takes place at the central portion. The first hinge bracket can with its first attachment part associated end in the opening be inserted because this end is not widened compared to the middle section. By the step shape of the associated receiving space but also this shorter in the vertical direction end is reliably supported without a larger gap of a pin or the like must be bridged cantilevered.

The described T- or O-shape of the hinge bracket refers to a front view of the hinge bracket along a horizontal direction. In contrast, in a plan view or in a horizontal section, the hinge straps usually have a substantially C-shaped bent shape, wherein the ends of the hinge bracket bent in plan view extend into the receiving spaces of the fastening parts and wherein the central portions with the vertical connecting the two hinge brackets Rotary axis extend at an open door hinge outside the receiving spaces.

The door hinge according to the invention can be used preferably for heavy door leaf with a weight of up to 300 kg or more due to the improved construction of the hinge bracket.

For the further embodiment of the door hinge arise within the scope of the invention, various preferred options.

Thus, according to a preferred embodiment, at least one of the fastening parts, preferably both fastening parts, has two head pieces holding the hinge brackets, which are connected by a steel profile. By such a modular construction, the fastening part or the fastening parts can be manufactured relatively inexpensively. Nevertheless, the fasteners can be made sufficiently stable even with a modular design. The steel profile can, for example be bent from sheet metal and have an L-shape with two legs or a U-shape. A particularly good stability is achieved when the sheet metal profile is screwed to the two end pieces adjoining the head pieces.

The head pieces themselves can be composed of several parts. In particular, the head pieces may each have a holding the hinge bracket receiving element and a fastened to the door frame or the door connection element, wherein the holding element and the connecting element are connected by an adjusting mechanism. By such mutually movable parts, an adjustable door hinge can be provided. An adjustability can be done for example by a connection by means of spindles or by screwing on oblong holes. In addition or as an alternative, eccentrics, wedges which can be actuated by a screw or the like are also possible as adjusting means. By such an adjusting mechanism, the adjustment in one direction is possible between the holding element and the connecting element. In order to specify a total of three adjustable door hinge, can also be provided between the holding element and the connecting element also an intermediate piece, in which case the holding element relative to the intermediate piece in a first direction and the intermediate piece relative to the connecting element in a second direction is adjustable.

The shape of the steps provided for in the invention in the receiving space of the first fastening part depends on the fastening and guiding of the hinge straps on the first fastening part. Preferably, the steps divide the receiving space of the first attachment part into a front area and a rear area of lesser height. The assignment refers to the visible in the assembled state side of the fasteners on which also the hinge bracket out of the receiving space extend. The step can be parallel to the front. In order to save material, however, the step can also be adapted in its shape to the receptacle for the first hinge bracket.

The head pieces or the connecting elements and holding elements are designed according to a preferred embodiment of the invention as milled parts. In contrast to the commonly used zinc die-castings no Ausformschrägen are necessary, whereby an undesirable play can be avoided or reduced.

Due to the arrangement of the axes of rotation and the guideways for receiving the hinge bracket, the kinematics of the door hinge is determined. According to a preferred embodiment, it is provided that the first hinge bracket in the receiving space of the first fastening part is rotatably and longitudinally movably guided in a guide track, wherein the vertical axis of rotation of the second hinge bracket is arranged starting from the front of the receiving space in front of the guide track. The arrangement in the receiving space of the second fastening part can be complementary, but, as described above, there is preferably no step provided. Accordingly, therefore, the first hinge bracket in the receiving space of the second fastening part to be rotatable about a vertical axis of rotation, wherein a guide track for the rotatable and longitudinally movable receiving an associated end of the second hinge bracket is disposed behind this vertical axis of rotation of the first hinge bracket.

Fig. 1

die Ansicht auf ein erfindungsgemäßes Türband in einer Seitenansicht,

Fig. 2

einen Schnitt durch das Türband gemäß der Fig. 1 entlang der Linie A-A der Fig. 1,

Fig. 3

einen Vertikalschnitt entlang der Linie B-B der Fig. 1,

Fig. 4

einen Vertikalschnitt entlang der Linie C-C der Fig. 1,

Fig. 5

eine perspektivische Ansicht der Scharnierbügel des Türbandes gemäß der Fig. 1.

The invention will be explained in the following with reference to a drawing showing only one exemplary embodiment. Show it:

Fig. 1

the view of an inventive door hinge in a side view,

Fig. 2

a section through the door hinge according to the Fig. 1 along the line AA the Fig. 1 .

Fig. 3

a vertical section along the line BB of Fig. 1 .

Fig. 4

a vertical section along the line CC of Fig. 1 .

Fig. 5

a perspective view of the hinge bracket of the door hinge according to the Fig. 1 ,

The Fig. 1 shows an inventive door hinge for a hidden arrangement between a in the Fig. 1 and Fig. 2 indicated door frame 1 and a door 2.

The view of Fig. 1 and Fig. 2 corresponds to a fully open door 2, which is pivoted to a closed position by 180 °. In the illustrated open state, a first fastening part 3 connected in the exemplary embodiment to the door frame 1 and a second fastening part 4 connected to the door leaf 2 are arranged side by side.

The fastening parts 3, 4 are supported by a first hinge bracket 5 and a second hinge bracket 6 against each other, wherein the two hinge brackets 5, 6 are connected to each other about a vertical axis of rotation A. The assignment of the vertical direction z refers to the usual arrangement of the door hinge between a door frame and a door leaf. In principle, however, another installation of the door hinge is not excluded.

The two fasteners 3 and 4, according to a comparative consideration of Fig. 1 and Fig. 2 each have a receiving space 7a, 7b. In the receiving space 7 a of the first fastening part 3, a first end 5 a of the first hinge bracket 5 is rotatably and longitudinally movably guided in an associated guide track 8 a, while a first end 6 a of the second hinge bracket 6 is attached to the first fastening part 3 about a vertical axis of rotation A '. Starting from a front side 9 of the first fastening part 3, the first end 6a of the second hinge bracket 6 is arranged with the vertical axis of rotation A 'in front of the guide track 8a.

According to the invention, the first hinge bracket 5 extends at its first end 5a arranged in the receiving space 7a of the first fastening part 3 in the vertical direction z over a shorter length than the second hinge bracket 6 at its first end 6a (FIG. Fig. 5 ).

According to the perspective view of the two hinge brackets 5, 6 (FIG. Fig. 5 ), the first hinge bracket 5 in a side view of a rotated by 90 ° T-shape, while the second hinge bracket 6 has an opening 10 closed around its circumference.

A comparative consideration of Fig. 1 and Fig. 2 It can be seen in this context that the first hinge bracket 5 extends with its first end 5a through the opening 10 in the second hinge bracket 6 therethrough. The first hinge bracket 5 and the second hinge bracket 6 are at a central portion 5b of the first hinge bracket 5 and horizontal, the opening 10 limiting webs 6b of the second hinge bracket 6 connected to the above-described vertical axis A together.

The Fig. 1 and Fig. 5 show that the first hinge bracket 5 and the second hinge bracket 6 each have a second end 5c, 6c extending in the vertical direction z over the same length. While the second end 5c of the first hinge bracket 5 is rotatably connected to the second attachment part 4 about a vertical axis of rotation A ", the second end 6c of the second hinge bracket 6 is guided in a guide track 8b of the second reception space 7b.

In order that the receiving space 7a of the first fastening part 3, despite the smaller length of the first hinge bracket 5 at its first end 5a may extend to this zoom, the receiving space 7a of the first fastening part 3 above and below the first end 5a of the first hinge bracket 5 each one Level 11 on. The total height of the two steps 11 corresponds to the difference in length between the two hinge straps 5, 6 within the receiving space 7a of the first fastening part 3.

The door hinge is preferably configured symmetrically about a horizontal center plane E, so that it can be used without restriction both for left and after a rotation for right-hinged doors.

In the illustrated embodiment, the first fastening part 3 and the second fastening part 4 each have two head pieces 12a, 12b holding the hinge straps 5, 6 and a steel profile 13 connecting the head pieces 12a, 12b.

From the Fig. 1 it can be seen that the steel profiles 13 are screwed to the two respectively associated head pieces 12a, 12b, in order to achieve a sufficient strength. Finally, the head pieces 12a, 12b are composed of several parts.

Thus, the head pieces 12a of the first fastening part 3 allow an adjustment in the vertical direction z and an adjustment in a first horizontal direction x, while the head pieces 12b of the second fastening part 4 allow an adjustment in a second horizontal direction y.

In order to enable a two-fold adjustment in the vertical direction z and the first horizontal direction x, the head pieces 12a of the first fastening part 3 each have a fastened to the door frame 1 connection element 14a, an intermediate piece 15 and a hinge bracket 5, 6 receiving retaining element 16a.

In order to enable an adjustment in the vertical direction, the holding element 16a with a grub screw 17 and a wedge 18 relative to the connecting element 14a is adjustable. A horizontal adjustment along the first direction x is further achieved by the fact that the holding member 16a receiving the hinge bracket 5, 6 is laterally displaceable relative to the intermediate piece 15 along oblong holes 19 and by screws 20 in the desired position ( Fig. 1 ).

Only an adjustment along the second horizontal direction y by means of adjusting spindles 21 is provided on the head pieces 12b of the second fastening part 4. For this purpose, the head pieces 12b of the second fastening part 4 each have a connection element 14b which can be fastened to the door leaf 2 and a the hinge bracket 5, 6 receiving retaining element 16b. With the adjusting spindles 21, the holding elements 16b relative to the associated connection elements 14b and thus relative to the narrow side of the door leaf 2 along the second horizontal direction y can be adjusted.

The adjustment along the second horizontal direction y is used to adjust the door leaf 2 parallel to its outer surfaces in a closed door 2, to adjust the gap remaining on both sides between the door frame 1 and door 2.

The adjustment along the first horizontal direction x is intended to adjust the door 2 relative to its closed position in the direction of door thickness. In the case of common doors provided with a fold and a seal, this makes it possible to set the exact position of the door leaf 2 relative to such a seal, which is why the adjustment along the first horizontal direction x is also referred to in practice as a pressure adjustment.

By adjusting along the vertical direction z, the height of the door leaf 2 can be adjusted within the door frame 1.

The attachment of the door leaf 2 a door frame 1 is usually carried out with at least two of the door hinges described.

Claims (8)

1. A door hinge for a concealed arrangement between door frame (1) and door leaf (2) comprising
   a first and a second fastening part (3, 4), which can be inserted into recesses on the narrow side of the door leaf (2) and in the door frame (1),
   a first hinge bracket (5) and a second hinge bracket (6), which are connected so as to be rotationally movable about a vertical axis of rotation (A),
   wherein, on receiving spaces (7a, 7b) of the fastening parts (3, 4), the end (6a, 5c) of a hinge bracket (6, 5) is in each case supported so as to be pivotable about a vertical axis of rotation (A', A") and the end (5a, 6c) of the other hinge bracket (5, 6) is guided in a rotatable and longitudinally movable manner, characterized in that the first hinge bracket (5) extends in the vertical direction (z) across a smaller length than the second hinge bracket (6) in the receiving space (7a) of the first fastening part (3) and that the receiving space (7a) of the first fastening part (3) has a step shape, which is adapted to the different length of the hinge brackets (5, 6), comprising a step (11) above and a step (11) below the first hinge bracket (5), wherein the first and the second hinge bracket (5, 6) extend in the vertical direction across the same length in the receiving space (7b) of the second fastening part (4), and wherein the second hinge bracket (6) has an opening (10), which is closed about its circumference and through which the first hinge bracket (5) extends.
2. The door hinge according to claim 1, characterized in that, starting at an end (5a) assigned to the first fastening part (3), the first hinge bracket (5) has a middle section (5b) and an opposite end (5c), wherein the end (5a) assigned to the first fastening part (3) and the middle section (5b) extend in the vertical direction (z) across the same length, and wherein the opposite end (5c) extends in the vertical direction (z) beyond the middle section (5b).
3. The door hinge according to claim 1 or 2, characterized in that, on their ends (5a, 6a, 5c, 6c), the first hinge bracket (5) and the second hinge bracket (6) extend in the vertical direction (z) directly up to the fastening parts (3, 4).
4. The door hinge according to one of claims 1 to 3, characterized in that the first and the second hinge bracket (5, 6) extend in the vertical direction (z) across the same length into the receiving space (7b) of the second fastening part (4).
5. The door hinge according to one of claims 1 to 4, characterized in that at least one of the fastening parts (3, 4) has two head pieces (12a, 12b), which hold the hinge brackets (5, 6) and which are connected via a steel section (13).
6. The door hinge according to claim 5, characterized in that the head pieces (12a, 12b) each have a holding element (16a, 16b) receiving the hinge brackets (5, 6), as well as a connecting element (14a, 14b), which can be fastened to the door frame (1) or the door leaf (2), wherein the holding element (16a, 16b) and the connecting element (14a, 14b) are connected by means of an adjusting mechanism.
7. The door hinge according to one of claims 1 to 6, characterized in that the steps (11) divide the receiving space (7a) of the first fastening part (3) into a front region and a rear region having a smaller height.
8. The door hinge according to one of claims 1 to 7, characterized in that the first hinge bracket (5) is guided in a rotatable and longitudinally movable manner in a guide track (8a) in the receiving space (7a) of the first fastening part (3), wherein, starting on a front side (9) of the receiving space (7a), the vertical axis of rotation (A') of the second hinge bracket (6) is arranged upstream of the guide track (8a).

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