EP3124727B1 - Door belt for a covered assembly between door frame and door wing - Google Patents

Description

The invention relates to a door hinge for a concealed arrangement between the door leaf and door frame with a first receiving body and a second receiving body, which are insertable into recesses of the door frame and a narrow side of the door leaf, and with a receiving body connecting the hinge bracket assembly, the at least two about a vertical axis pivotally interconnected hinge bracket, wherein the hinge bracket assembly is rotatably supported on the second receiving body of two spaced, separate inserts and wherein the inserts are each adjustable by an adjusting screw in a second horizontal direction perpendicular to a front surface of the second receiving body relative to the second receiving body.

The assignment of the vertical axis and the horizontal directions refers to the usual installation situation of the door hinge.

Hidden door hinges are known in different configurations. Compared with door hinges with an exposed tape roll, there is the advantage that doors can be optimally integrated into flat wall surfaces without the door hinges being visible in the case of a closed door leaf. This also results in the advantage that in a closed door the bands are protected against environmental influences, damage or tampering. Furthermore, by the shape of the hinge bracket assembly also specially adapted pivoting sequences can be provided in order to open, for example, doors with a fold can. Finally, concealed hinges often have an opening angle of 180 °.

To be able to adjust the door in the door frame even later, door hinges often have adjustment mechanisms, preferably an adjustability in three directions is possible. By adjusting the height along the vertical, the height of the door leaf in the door frame can be adjusted. With a lateral adjustment in the horizontal direction parallel to the outer surface of the door leaf this can be moved laterally within the door frame - based on its closed position. Finally, an adjustment of the door leaf in the direction of its thickness is possible, which is referred to as Andruckverstellung. The name results from the fact that an adjustment in the direction of the thickness usually also the force can be determined, with which a seal between the door leaf and door frame is compressed.

In order to realize the lateral adjustment, the distance between the two receiving bodies must ultimately be changed with reference to the closed position of the door leaves. For this purpose, it is usually provided on one of the two receiving body, that the hinge strap assembly bearing inserts can be adjusted in the corresponding second horizontal direction. Generic embodiments of concealed hinges to be arranged are from, the preamble of claim 1 facing DE 102 39 446 C1 , from the DE 10 2008 057 341 B3 . DE 10 2008 056 327 B3 . DE 10 2012 101 644 B3 and DE 10 2011 002 216 B3 known.

According to the last mentioned DE 10 2011 002 216 B3 , which discloses the preamble of claim 4, can be used as an adjusting screw a simple head screw, which is held with a screw head in a receiving pocket of the associated insert. This receiving pocket is then opened laterally to easily insert the adjusting screw during assembly can. In the adjustment of the screw head is then held positively. A certain mobility of the adjusting screw inside the receiving pocket can according to the DE 10 2011 002 216 B3 can not be avoided.

Against the background of the known embodiments, the present invention has the object to provide a door hinge with a greater rigidity and a lesser game.

Object of the invention and solution of the problem are hinges according to the independent claims 1 and 4, wherein each provided for solving the task measures can also be implemented together.

The present invention is based in particular on the finding that even slight play, especially with a permanent use of a door hinge, can lead to an uneven loading and thus to increased wear. Only with a minimization of the game, a particularly uniform force distribution can be achieved.

Starting from a door hinge with the features described above, it is provided according to a first embodiment of the invention that the inserts are each held in a form-fitting manner in the vertical direction between two spaced mating surfaces and guided along the second horizontal direction.

On an opposite side of the hinge bracket assembly, the inserts according to a preferred embodiment of the invention, at least one along the second horizontal direction extending Führungsausformung in the form of a groove or protruding rib, which cooperates with a complementary Führungsausformung the second receiving body in the form of a protruding rib or groove , By such associated ones Führungsausformungen first, a fixation in the vertical direction is possible, with tilting the inserts forward and backward can be avoided even taking into account the other counter surface. The associated, complementary Führungsausformungen can also be used to allow lateral stabilization along the first horizontal direction, so that also with respect to this direction, a tilting is prevented. By suitable mating surfaces can thus be ensured that the inserts can be moved substantially only along the second horizontal direction.

The second receiving body may form a receiving space for the inserts which is U-shaped in a cross-section perpendicular to the vertical, and the ends of the hinge straps are usually also arranged in this receiving space. In the preferred embodiment of the door hinge according to the invention with a guide slot on each insert of the corresponding hinge bracket dives when closing the door hinge, starting from an open position then in the associated receiving space.

Starting from such a U-shaped receiving space can be provided as a counter surface for each of the inserts extending along the second horizontal direction rib, against which rests the associated insert with its side facing the hinge bracket assembly.

According to a further aspect of the present invention, in addition to or alternatively to the fixation of the inserts in the vertical direction by spaced mating surfaces provided that the inserts have a receiving pocket for the adjusting screw, in which the associated adjusting screw with a screw head from an open side perpendicular to the second horizontal direction and along the second horizontal direction is held, wherein engages on the open side of the receiving pocket extending along the second horizontal direction web of the second receiving body into the receiving pocket and laterally bounds the screw head. This bridge can be chosen in its dimensions so that the screw head is held tightly in the receiving pocket, whereby an undesirable play is avoided.

The second receiving body and the inserts are preferably formed as metal castings, in particular, a zinc die-casting comes into consideration.

As already described, it is provided according to a preferred embodiment of the invention that the hinge bracket assembly comprises two hinge brackets, one of which is arranged rotatably about a vertical axis of rotation of the inserts and the other in guide slots of the inserts displaced and rotatable. Usually, such a hinge bracket assembly is supported on the second receiving body in a similar manner.

This then results in the belt construction described also from the prior art mentioned above, in which the kinematics of the door hinge can be varied by the shape of the two interacting hinge brackets, the arrangement of the axes of rotation and the course of the guide slots. Alternatively, a hinge bracket assembly in the manner of a scissors joint is possible, which has, for example, a plurality of hinge bracket with a total of seven pivot axes. The alternative embodiments of the hinge bracket assembly are, for example, from JP 6-288139 known.

Fig. 1

ein erfindungsgemäßes Türband,

Fig. 2

einen Längsschnitt durch einen ersten Aufnahmekörper des Türbandes gemäß der Fig. 1,

Fig. 3

einen Horizontalschnitt durch das Türband gemäß der Fig. 1,

Fig. 4

Details des Türbandes an einem zweiten Aufnahmekörper in einem Längsschnitt.

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

Fig. 1

a door hinge according to the invention,

Fig. 2

a longitudinal section through a first receiving body of the door hinge according to the Fig. 1 .

Fig. 3

a horizontal section through the door hinge according to the Fig. 1 .

Fig. 4

Details of the door hinge on a second receiving body in a longitudinal section.

The Fig. 1 shows a door hinge for a concealed arrangement between a door leaf and a door frame in the open position, wherein a first receiving body 1 and a second receiving body 2 against a closed position by 180 ° are pivoted against each other. From the Fig. 1 It can be seen that seen in the vertical direction z, the ends of the receiving body 1, 2 are usually covered by covers 3, which, however, each at the upper end of the receiving body 1, 2 in the Fig. 1 have been omitted for clarity of construction.

The two receiving body 1, 2 are connected in a conventional manner by a hinge bracket assembly of two hinge brackets 4a, 4b. The two hinge brackets 4a, 4b are interconnected pivotably about a pivot axis 5 extending in the vertical direction z. Furthermore, each of the hinge brackets 4a, 4b in the region of a receiving body 1, 2 pivotally and guided longitudinally movable and rotatable on the other receiving body 2.1 in guide slots 6.

According to the Fig. 2 the two hinge brackets 4 a, 4 b are held in the region of the first receiving body 1 at two spaced, separate inserts 7, wherein the inserts 7 together at one over the height of the Hinge bracket assembly extending one-piece, rigid support body 8 are attached. From a comparative analysis of the Fig. 2 and 3 It can be seen that the holding body 8 is inserted in a form perpendicular in a horizontal section perpendicular to the vertical z U-shaped receiving space of the first receiving body 1, so that the holding body 8 relative to the first receiving body 1 only in the vertical direction z with minimal lateral play is movable ,

From the Fig. 2 is further seen that the inserts 7 are held on the common holding body 8 in the vertical direction in each case between a substantially horizontal wall 9 and an abutment 10 of the holding body 8 in the form of a rib in the vertical direction z positively.

The wall 9, in which rest the inserts 7 on its side facing the hinge bracket assembly, may also have a slight inclination and / or bending, which is called frame of the invention without limitation nor as horizontal. In particular, in a preferred embodiment of the receiving body 1, 2, the holding body 8 and the inserts 7 as metal castings, for example Ausformschrägen necessary. This results in the advantage that the substantially horizontal wall 9 and the adjoining side of the inserts 7 can have a precisely matched complementary shape.

From the Fig. 2 shows that the inserts 7 - as explained above - are held and supported in the vertical direction z between the substantially horizontal wall 9 and the abutment 10, so that a tilting of the inserts 7 is avoided and a particularly high stability results. Furthermore, the inserts 7 are fastened by clamping screws 11 to the holding body 8. When the inserts 7 extending in the horizontal direction slots For receiving the clamping screws 11, an adjustment of the door hinge in a first horizontal direction x in the sense of Andruckverstellung can also be realized in a simple manner. The assignment of the first horizontal direction x and a second horizontal direction y relates to the orientation of the closed door leaf in the door frame. The first horizontal direction x then runs in the direction of the thickness of the door leaf, while the second horizontal direction y runs parallel to the surface of the closed door leaf.

Since at least when tightened clamping screws 11, the inserts 7 are held backlash-free and precise on the holding body 8 and the holding body 8 can be adjusted together with the inserts 7 and the hinge brackets 4a, 4b as a mounting unit relative to the first base body 1 in the vertical direction z, can between the hinge brackets 4a, 4b and the inserts 7 are provided in the vertical direction a small game, which also remains intact and allows a jam-free movement of the hinge bracket 4a, 4b on the inserts 7.

According to the Fig. 2 the adjustment in the vertical direction z can be effected in a particularly simple manner by an adjusting mechanism which has a screw 12 and an adjusting wedge 13. With the screw 12, the adjusting wedge 13 can be screwed at different depths perpendicular to a front side of the first receiving body 1 and acts on a wedge surface 14 of the holding body 8, whereby it can be adjusted in the vertical direction z. From the Fig. 1 results in addition to that laterally to the adjusting wedge 13 further clamping screws 11 'are provided, with which the holding body 8 can be fixed to the first receiving body 1, so that not all the forces acting on the holding body 8 act on the adjusting mechanism after the desired height is set during assembly.

An adjustment along the vertical direction z and along a first horizontal direction x is thus possible on the first receiving body 1 in the context of the embodiment described, while the adjustment along a second horizontal direction y is provided on the second receiving body 2. Also on the second receiving body 2 are in accordance with the Fig. 4 two spaced inserts 7 'are provided, which carry the hinge bracket 4a, 4b. The inserts 7 'are each adjustable by an adjusting screw 15 in the manner of an adjusting spindle in the second horizontal direction y perpendicular to a front surface of the second receiving body 2. In other words, the inserts 7 'can be screwed into the second receiving body 2 at different depths.

The inserts 7 'are positively guided along the second horizontal direction y, wherein in the described embodiment, the adjusting screw 15 is inserted with a screw head 16 from an open side along the vertical direction z in a receiving pocket 17 of the assignable insert and within the receiving pocket 17th is held along the second horizontal direction y. In a horizontal cross-section, the receiving pocket 17 surrounds the screw head 16 in approximately C-shaped, wherein the underside of the screw head 16 is held by lateral legs of the receiving pocket 17. A thread 18 of the adjusting screw 15 extends out of a slot of the receiving pocket 17 and is received in a threaded bore 19 of the second receiving body 2.

In order to avoid play and a certain tilting of the inserts 7 ', various measures are provided within the scope of the invention.

First, the inserts 7 'in the vertical direction z are positively held between two spaced mating surfaces and guided along the second horizontal direction y. According to the Fig. 4 the inserts 7 'on a side opposite the hinge strap assembly on a along the second horizontal direction extending Führungsausformung in the form of a protruding rib 20 which engages in a complementary Führungsausformung the second receiving body 2 in the form of a groove 21. This complementary Führungsausformungen not only tilting forward and backward, but also a lateral tilting can be avoided.

The second receiving body 2 is in its in the vertical direction z seen middle region in a cross section in an approximately U-shaped and forms a receiving space for the ends of the hinge bracket, 4a, 4b and 7 'for the inserts. On at least one of the lateral limbs of the U-shaped receiving space, a rib 20 'running along the second horizontal direction y is provided as counter surface.

Already by the described ribs 20, 20 'and the groove 21, a largely play and tilt-free guidance of the inserts 7' can be achieved.

As an additional and / or alternative measure a game can be reduced by the fact that the adjusting screw 15 is limited in the assembled state in their mobility. For this purpose, an extending along the second horizontal direction y web 22 of the second receiving body 2 is provided on an open side of the receiving pocket 17, which engages in the receiving pocket 17 and the screw head 16 laterally limited.

The inserts 7 'are like the second receiving body 2 preferably formed as metal castings.

Claims (6)

1. A door hinge for a concealed assembly between a door leaf and a door frame, having a first fixture body (1) and a second fixture body (2), which can be inserted in recesses of the door frame and of a narrow side of the door leaf, and having a hinge bracket assembly connecting the fixture bodies (1, 2), which has at least two hinge brackets (4a, 4b) interconnected pivotably about a vertical axis (5), wherein the hinge bracket assembly is rotatably held on the second fixture body (2) by two mutually spaced-apart, separate insets (7') and wherein the insets (7') are each adjustable relative to the second fixture body (2) in a second horizontal direction (y) perpendicular to a front face of the second fixture body (2) by means of an adjustment screw (15) of the door hinge, characterized in that the insets (7') are each held in a form-fitting manner in a vertical direction (z) between two mutually spaced-apart counterfaces (20', 21) of the second fixture body (2) and guided along the second horizontal direction (y).
2. The door hinge according to Claim 1, characterized in that the insets (7') have, on a side opposite the hinge bracket arrangement, a guide in the shape of a groove or raised rib (20) extending along the second horizontal direction (y), which interacts with a complementary guide of the second fixture body (2) in the shape of a raised rib or groove (21), respectively, as a counterface.
3. The door hinge according to Claim 1 or 2, characterized in that the second fixture body (2) forms a receiving space that is U-shaped in a cross section perpendicular to the vertical (z) for the insets (7'), wherein a rib (20') extending along the second horizontal direction (y) is provided as a counterface on at least one of the two lateral legs of the U-shaped receiving space for each of the insets (7').
4. The door hinge according to any one of Claims 1 to 3 or to the preamble of Claim 1, wherein the insets (7') have a receiving pocket (17) for the adjustment screw (15), in which the associated adjustment screw (15) is inserted with a screw head (16) from an open side perpendicular to the second horizontal direction (y) and is held along the second horizontal direction (y), characterized in that, on the open side of the receiving pocket (17), a bar (22) of the second fixture body (2) extending along the second horizontal direction (y) engages in the receiving pocket (17) and laterally borders the screw head (16) .
5. The door hinge according to any one of Claims 1 to 4, characterized in that the second fixture body (2) and the insets (7') are formed as cast metal parts.
6. The door hinge according to any one of Claims 1 to 5, characterized in that the hinge bracket assembly has two hinge brackets (4a, 4b), one of which is arranged rotatably on the insets (7') about a vertical axis of rotation and the other of which is arranged slidably and rotatably in guide slots (6) of the insets (7').

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