EP2873792B1 - Hinges - Google Patents

Description

The invention relates to a door hinge with a first and a second hinge tabs which are rotatably connected to each other on a tape roll and with a receiving device in which the first hinge tab is adjustably received, wherein the receiving device between a first sheet metal part and a second sheet metal part has two adjusting spindles and wherein the first hinge flap is adjustably received in the receiving device along a longitudinal axis of the adjusting spindles in a first direction.

A door hinge with the features described above is from the DE 10 2010 011 326 B3 as well as the DE 10 2010 011 327 B3 known. The receiving device described therein comprises, inter alia, two sheet-metal parts which are riveted to one another above and below the adjusting spindle. To allow the riveting, a sufficiently large area must be provided on both sheet metal parts. Riveting represents a relatively complex step.

In order to enable an adjustment of the hinge, the known door hinge is designed relatively expensive. Thus, the two sheet metal parts are initially arranged on a separate base plate. In order to allow an adjustment in the vertical direction, the two interconnected sheet metal parts are not directly, but attached via separate fasteners on a door or on a door frame. These fasteners are movable in the vertical direction relative to the two sheet metal parts, so that after fixing the two fastening parts, the interconnected sheet metal parts can be positioned with the first hinge flap received therein in the vertical direction. Even if the door hinge described is characterized by a compact design, there is a considerable manufacturing effort, although a certain amount of play can occur due to the large number of different parts.

Against this background, the invention has for its object to provide a door hinge with the features described above, which is particularly easy to manufacture and is characterized by a high stability.

The invention is a door hinge according to claim 1. Starting from a door hinge with the features described above, it is provided according to a first aspect of the invention that the first sheet metal part is supported via connecting portions against the second sheet metal part, wherein tongues are formed on the connecting portions engage behind by a bend the second sheet metal part. The tongues can be formed in a particularly simple manner, for example when punching out the first sheet metal part. There is also the advantage that the tongues can be designed to be relatively compact and space-saving, wherein in particular an arrangement at the edge of the sheet metal parts comes into consideration, so that a mean surface of the sheet metal parts for the arrangement of the adjusting spindles or any other adjustment can be used. Finally, the assembly is also very easy, because individual tongues can be easily folded.

According to a preferred development of the invention, it is provided that the first sheet metal part and / or the second sheet metal part has fastening bores for arranging the receiving device on a door leaf or on a door frame. Unlike the known prior art according to DE 10 2010 011 326 B3 So the two to a unit interconnected sheet metal parts are rigidly attached to a door or a door frame become. The two sheet metal parts are then immovably arranged with respect to the respective door leaf or the door frame. Accordingly, the two sheet metal parts preferably also form outer surfaces of the receiving device. The adjusting spindles and any further adjusting devices are then arranged within the housing formed by the two sheet metal parts.

In the context of the invention, a plurality of tongues are provided in order to connect the two sheet-metal parts together at several points.

A particularly reliable and space-saving connection is achieved when the arranged on the connecting portions of the first sheet metal part tongues are guided through slots of the second sheet metal part. Through such slots slipping of the two sheet metal parts to each other can be prevented at each connection point. An advantage also results from the fact that the second sheet metal part is interrupted by the slots only where the tongues are located. Adjacent areas of the connecting portions can be supported with an end face laterally of the slots relative to the second sheet metal part.

The two sheet metal parts usually have an elongated shape parallel to the axis of rotation of the roll of tape. The tongues and optionally provided slots are then preferably on longitudinal sides of the sheet metal parts. In particular, the slots may extend on the longitudinal sides in a transverse direction, in which case the tongues guided through the slots are folded over in the longitudinal direction. The positive connection provided by the tongues is then concentrated only on one edge region.

According to a particularly preferred embodiment of the invention, in each case a web by a gradation with respect to a central portion of the second sheet metal part in on opposite longitudinal sides of the second sheet metal part Direction of the first sheet metal part arranged offset. In the context of such an embodiment, it can be achieved that the tongues bent over on the webs are flush with the outside or roughly flush with the middle section on an outside formed by the second sheet metal part. The two webs, which are preferably engaged behind by at least two tongues, are then arranged offset from the middle section to the rear, so that the folded tongues do not protrude.

According to the two sheet metal parts are positively connected by the tongues, wherein the two sheet metal parts can form a box-shaped housing for receiving the first hinge strap. Since the positive connection is made by the bending of the tongues, depending on the procedure, a certain play or some air between the two sheet metal parts can not always be safely excluded.

In order to reduce or avoid such a possible game, the first sheet metal part and the second sheet metal part can be connected in addition to the positive connection by the angled tongues by at least one screw. When tightening the screw, the two sheet metal parts are additionally connected and pulled together, whereby a game can be eliminated. In order to keep the production costs low, the screw can also be used in combination with a blind rivet nut, so that in the sheet metal parts no thread must be cut. It can also be used from both sides blind rivet nut to attach on one side of the screw and on the other side another element, such as a cover plate.

As explained above, the mounting holes for the arrangement of the receiving device on a door frame or a door leaf both on the first sheet metal part, as well as formed on the second sheet metal part. The exact type of attachment is chosen depending on the particular installation situation. For example, if only a very small installation space is available, especially in the installation of the receiving device in a thin door, the mounting holes can be introduced into the sheet metal part, which is located outside in the mounted state. Accordingly, less material must be milled away below the receiving device, which then still remains for receiving a fastening screw.

According to a preferred embodiment of the invention, the receiving device is mounted so that in the installed state, the first sheet metal part lies in the outside of the door leaf or the door frame. Just when then only little material is available, the mounting holes may be advantageously formed at opposite end portions of the first sheet metal part, wherein the second sheet metal part is made shorter there, whereby there only little material of the door frame or the door leaf for the arrangement of the receiving device must be removed , However, it should then be considered that the first sheet metal part has lateral connecting sections which extend in the direction of the second sheet metal part. Even if there is already a development in the area of the fastening bores, the first sheet metal part could dig there sharp-edged into the underlying material of the door frame or the door leaf, which could lead to material damage. In the context of the invention can therefore be provided on the provided with the mounting holes end portions of the first sheet metal part, the arrangement of stop elements made of plastic. The end sections are then expediently deposited in the direction of the second sheet metal part, each with a contact element made of plastic. Preferably, the abutment element has one to the first Sheet metal part complementary shape, so that this can be arranged positively and clicked in particular during assembly. The contact element expediently has a flat, smooth contact surface in the direction of the second sheet metal part. Finally, if the abutment element is arranged behind the fastening bores and has through-holes, there results the advantage that fastening screws are guided not only by the fastening bores but also by the passage openings of the abutment elements, whereby the risk of an oblique, improper screwing is reduced. Since plastic is comparatively soft, the contact element can also be used for fastening a cover plate by means of self-tapping screws, which then openings are provided in the first sheet metal part at appropriate locations.

In principle, it is possible for the adjusting spindles with their threads to be inserted directly into threaded bores of the first hinge strip, wherein the first hinge flap can then be adjusted by rotation of the spindles directly along the longitudinal axis of the spindles in the first direction. Preferably, it is provided that the adjusting spindles are each inserted with a thread in threaded holes of a control plate, which is positionable by rotation of the adjusting spindles between the first sheet metal part and the second sheet metal part, that the first hinge tab on the adjusting plate in a direction perpendicular to the longitudinal axis of the adjusting spindles is adjustable in a second direction along a positive guide and that the first hinge flap by a double cranking engages longitudinal edges of the actuator plate. The second direction usually extends along a connecting line between the adjusting spindles, ie in the mounted door hinge in the vertical direction. By the measures described a particularly simple and reliable adjustment of the first hinge strap can be achieved in the vertical direction. Unlike the out DE 10 2010 011 326 B3 known configuration, the adjustment takes place in the vertical direction within the receiving space formed by the two sheet metal parts. Accordingly, the two sheet metal parts can be firmly attached to a door or a door frame even if an adjustment in two directions is required.

Due to the double cranking, the entire height of the first hinge flap is used for the positive guidance, so that a very uniform and reliable power distribution takes place. The positive guidance is achieved solely by the shape of the first hinge and the actuator plate. Other elements are not necessary for the guidance of the parts together. In contrast to the production of guide grooves or the like, the cranking of the first hinge flap, which is usually also formed from sheet metal, is particularly simple.

The adjusting spindles can have a continuous thread between the sheet metal parts. Preferably, however, it is contemplated that the thread extends only over part of the gap and is then limited by thickenings (e.g., cylindrical outer diameter portions of the thread). The travel can thus be limited so that the receiving device can not be spread by an adjustment or even blown up.

In order to fix the first hinge flap at a desired height, according to a preferred embodiment of the invention, at least one clamping screw is provided, which engages through a slot of the adjusting plate and engages with a thread in a threaded bore of the first hinge strap. Around To achieve better protection against tilting and a uniform clamping locking, particularly preferably at least two clamping screws are provided, which are arranged at a distance from each other.

So that the clamping screws are not accidentally completely unscrewed when loosening, they have at the free end of the thread expediently a deformation as dismantling protection. For example, a compression, a cross-shaped impression or the like may be provided at the free end. The clamping screw is then dimensioned so that it protrudes with its free end over the threaded hole of the first hinge plate. If the clamping screw is unscrewed so far that the deformation reaches the edge of the threaded hole, further rotation is blocked.

In principle, it is possible that a positioning along the second direction, ie usually the vertical direction, takes place in that the clamping screws are released, wherein subsequently the height of the door leaf is adjusted before finally the clamping screws are tightened again after the height adjustment of the door leaf. The height adjustment of the door leaf can be done in the context of such an embodiment, for example, by underlying wedges or the like.

In order to simplify the height adjustment by a user, however, according to a preferred embodiment of the invention, an adjusting device for positioning the first hinge flap along the second direction is provided on the setting plate and the first hinge flap. In particular, the adjusting device may have at least one set screw in the adjusting plate, which on a wedge surface of the first hinge strap or one on the first hinge flap adjoining wedge acts. Depending on the adjustment of the adjusting screw, the wedge is moved. When the set screw is screwed in, the wedge is pushed away from the set screw accordingly.

In principle, it is sufficient if the door hinge has only one adjusting screw with an associated wedge surface or an associated wedge. The adjusting screw and the wedge are then to be arranged so that the wedge surface or the wedge is pressed by the weight against the adjusting screw, so that when screwing the screw the first hinge flap is raised.

Thus, the door hinge can be used either for right-hinged or left-hinged doors, a wedge surface or a wedge is preferably provided along the second direction on both sides of the hinge strap.

Fig. 1

Teile eines Türbandes mit einem ersten Bandlappen und einer Aufnahmeeinrichtung für den ersten Bandlappen in einer perspektivischen Draufsicht,

Fig. 2

die Anordnung gemäß der Fig. 1 in einer Ansicht von unten,

Fig. 3

einzelne Bestandteile der Anordnung gemäß der Fig. 1,

Fig. 4

eine Unteransicht einer Stellplatte mit dem daran angeordneten ersten Bandlappen,

Fig. 5

die Anordnung gemäß der Fig. 4 in einer Ansicht parallel zu einer Drehachse einer Bandrolle,

Fig. 6

ein vertikaler Schnitt durch die Anordnung gemäß der Fig. 1,

Fig. 7

ein horizontaler Schnitt durch ein Türband gemäß der Fig. 6,

Fig. 8

die Anordnung gemäß der Fig. 1 für eine alternative Ausgestaltung des Türbandes,

Fig. 9

ein Anlageelement der Anordnung gemäß der Fig. 8.

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

Fig. 1

Parts of a door hinge with a first hinge flap and a receiving device for the first hinge flap in a perspective plan view,

Fig. 2

the arrangement according to the Fig. 1 in a view from below,

Fig. 3

individual components of the arrangement according to the Fig. 1 .

Fig. 4

a bottom view of a setting plate with the first hinge flap disposed thereon,

Fig. 5

the arrangement according to the Fig. 4 in a view parallel to an axis of rotation of a roll of tape,

Fig. 6

a vertical section through the arrangement according to the Fig. 1 .

Fig. 7

a horizontal section through a door hinge according to the Fig. 6 .

Fig. 8

the arrangement according to the Fig. 1 for an alternative embodiment of the door hinge,

Fig. 9

a contact element of the arrangement according to the Fig. 8 ,

The Fig. 1 shows a first hinge flap 1, which is adjustably received in a receiving device 2. The first hinge tab 1 is rotatable on a tape roll 3 with a second, in the Fig. 7 shown band tabs 4 connected.

While the Fig. 2 the arrangement according to the Fig. 1 in another view, the Fig. 3 the parts to be assembled together.

A comparative consideration of Fig. 1 with the Fig. 3 It can be seen that the receiving device has a first sheet metal part 5 and a second sheet metal part 6. The Fig. 3 shows the two sheet metal parts 5, 6 before assembly. During assembly, the two sheet metal parts 5, 6 are joined together, being arranged on the first sheet metal part 5 tongues 7 are bent, whereby the two sheet metal parts 5, 6 are positively fixed to each other.

Before the two sheet-metal parts 5, 6 are fixed together during assembly, whereby a non-detachable connection is formed, the first hinge tab 1 is used together with a control plate 8 between the two sheet metal parts 5, 6. The adjusting plate 8 carries in threaded holes adjusting spindles 9, which engage with their ends in associated openings of the sheet metal parts 5, 6 (see Fig. 1 and Fig. 2 ).

According to the illustrated embodiment, the first sheet metal part 5 has a substantially flat support portion 10, on which the adjusting spindles 9 are held with their ends. Starting from the support portion 10 6 bent connecting portions 11a, 11b are provided on the longitudinal sides of the receiving device 2 in the direction of the second sheet metal part.

There, where the first hinge flap 1 is guided into the receiving device 2, are located at a vertical orientation of the axis of rotation of the tape roll 3 above and below the first hinge strap 1, two connecting portions 11 a, each having a tongue 7 (see Fig. 3 ).

On the opposite longitudinal side, however, there is a wide connecting portion 11 b, on which two tongues 7 are formed. While according to the Fig. 3 Before mounting, the tongues 7 still extend in the direction of the connecting sections 11a, 11b, these are bent during assembly in order to connect the two sheet-metal parts 5, 6 in a form-fitting manner.

The second sheet metal part 6 is for this purpose according to the Fig. 3 provided with slots 12 through which the tongues 7 are passed. Furthermore, the second sheet metal part 6 starting from a flat central portion 13 on the opposite longitudinal sides in each case a web 14 which is arranged offset by a step with respect to the central portion 13 of the second sheet metal part 6 in the direction of the first sheet metal part 5. The gradation is just chosen so that the angled in the mounted state tongues 7 at one of the outside of the second sheet metal part 6 formed are flush or arranged approximately flush with the central portion 13 ( Fig. 2 ).

The positive connection through the tongues 7 allows a particularly simple but reliable installation. It results in a very small footprint for the connection. In particular the Fig. 1 and 2 It can be seen that the second sheet metal part 6 can be used over its entire length for the arrangement of screws, holes or the like.

Specifically, it is provided that the second sheet metal part 6 has fastening holes 15 with which the receiving device 2 can be fastened to a door frame Z or particularly preferably a door leaf F. Already the Fig. 2 can be taken in this context that the two form-fitting interconnected sheet metal parts 5, 6 are thereby fixed and immovable to the door frame Z or the door leaf F are arranged, wherein the two sheet metal parts 5, 6 form a kind of housing.

In addition to the non-detachable, positive connection by the tongues 7, a connection of the first sheet metal part 5 and the second sheet metal part 6 by at least one screw 16 can be made. According to the Fig. 2 located next to each adjusting spindle 9, a screw 16, with which the two sheet metal parts 5, 6 can be pulled towards each other. A despite the unsolvable, positive connection by the tongues 7 possibly still existing game between the two sheet metal parts 5, 6 can be safely eliminated by means of screws 16. Furthermore, the screws 16 also cause stabilization directly on the adjusting spindles 9. The screws 16 engage according to the embodiment in blind rivet nuts 16a, so that in the sheet metal parts 5, 6 no thread must be cut, but this is alternatively also possible.

With the adjusting spindles 9, the hinge plate 1 can be adjusted via the adjusting plate 8 along a longitudinal axis of the adjusting spindles 9 in a first direction x.

The Fig. 7 shows the entire door hinge with an arrangement between a door F and a door frame Z in a horizontal section. By actuating the adjusting spindle 9, the first hinge flap 1 can be moved over the setting plate 8 in a horizontal direction x, whereby the lateral distance between the door leaf F and the door frame Z changes. Such adjustment is referred to in practice as a lateral adjustment.

The design of the door hinge with the first hinge flap 1 and the adjusting plate 8 is provided to enable adjustment perpendicular to the longitudinal axis of the adjusting spindle 9 along a second direction z. Based on the usual arrangement of a door hinge, this second direction z extends vertically.

According to the Fig. 3 two clamping screws 17 are provided which pass through an elongated hole of the adjusting plate 8 and engage with a thread in a threaded bore of the first hinge lobe 1. The Fig. 4 shows that the ends of the clamping screws 17 protrude beyond the threaded holes in the hinge flap 1. Conveniently, the ends of the clamping screws 17 are deformed such that the clamping screws 17 can not be accidentally unscrewed from the first hinge flap 1.

When the clamping screws 17 are released, the first hinge flap 1 is guided in a form-fitting manner on the setting plate 8. Specifically, the first hinge flap according to the Fig. 5 a double offset, whereby the first hinge flap 1 surrounds the adjusting plate 8 at longitudinal edges.

Finally, in the Fig. 3 To detect adjusting screws 18 which are part of a setting direction for positioning the first hinge flap 1 along the second direction z.

According to the Fig. 6 the set screws 18 act on wedges 19, which rest against the first hinge flap 1. To raise the first hinge flap 1, the lower set screw 18 is further screwed into the setting plate 8, whereby the associated wedge is raised. If necessary, the in the Fig. 6 shown upper screw 18 to solve so that the associated wedge 19 does not block the movement of the first hinge flap 1. In order to adjust the first hinge flap 1 in the vertical direction, a wedge 19 with an adjusting screw 18 acting on it is only necessary below. However, in order to be able to use the door hinge both for left and right-hinged doors, a wedge 19 with an associated adjusting screw 18 is expediently arranged above and below the first hinge strap 1.

In the Fig. 7 it can be seen that the receiving device 2 is provided on the free side of the door leaf F with a cover plate 20 which is fixed to the blind rivet nuts 16a, to which the thread of the blind rivet nuts 16a is accessible from both sides.

The Fig. 8 shows an alternative embodiment in which the mounting holes 15 are formed not on the second sheet metal part, but on the first sheet metal part at opposite end portions, said end portions form the upper and the lower end of the receiving device 2 in the mounted state. The arranged underneath second sheet metal part 6 is z shorter in the vertical direction, so that a total of less material must be milled away from the door F, so that in the Fig. 8 shown variant, just for mounting, comes on a less sustainable, thinner material of the door into consideration.

It should be noted, however, that the first hinge part 5 laterally has the connecting portions 11a, 11b, which should not dig uncontrollably into the underlying material during assembly of the receiving device 2. In order to allow a particularly uniform, reliable installation of the receiving device 2 when mounting on a door leaf F, a contact element 21 made of plastic is deposited at each end portion of the first sheet metal part 5 below the mounting holes 15 arranged there. The underside of the contact element 21 is formed as a flat contact surface.

The Fig. 9 shows the contact element 21 in a detailed view. The contact element 21 has passage openings 22 for fastening screws. This also results in the advantage that the fastening screws are guided through the passage openings 22 over a greater length, whereby the risk of incorrect assembly is reduced.

Another difference arises in the embodiment according to the Fig. 8 in that the two sheet-metal parts 5, 6 are connected to one another only by the tongues 7 and not additionally by screws 16.

In order to mount a cover plate 20 subsequently to the receiving device 2, 15 openings 23 are provided in the support portion 10 of the first sheet metal part 5 between the mounting holes, through which the respective underlying contact element 21 is accessible. A cover plate 20 can therefore be mounted with simple self-tapping screws, which extend through the passage openings 23 and intersect in the plastic material of the contact element 21.

The adjusting spindles 8 are shown only schematically in the figures. However, it is expedient if the thread of the adjusting spindles 8 extends only over a partial area between the two sheet metal parts 5, 6. In particular, the length and position of the thread can be adjusted so that the setting plate and the attached hinge flap 1 can strike neither the first sheet metal part 5 nor the second sheet metal part 6, whereby the receiving device 2 could be spread or even blown up. At the end of the thread of the adjusting spindle 9, a thickening is then provided, which prevents further rotation. For example, the adjusting spindles may have a cylindrical shape there, which has approximately the outer diameter of the thread. The adjusting spindles 9 can be subsequently deformed even after insertion into the adjusting plate 8. It is of course also within the scope of the invention to provide a thickening only on one side of the thread of the adjusting spindles.

Claims (11)

1. A door hinge with a first hinge flap (1) and a second hinge flap (4), which are rotatably connected to each other on an idler (3) and with a holding device (2), in which the first hinge flap (1) is held in an adjustable manner, wherein the holding device (2) has two adjusting spindles (9) between a first sheet-metal part (5) and a second sheet-metal part (6), and wherein the first hinge flap (1) is held in an adjustable manner within the holding device (2) along a longitudinal axis of the adjusting spindles (9) in a first direction (x), characterized in that the first sheet-metal part (5) has connection sections (11a, 11b) and is supported against the second sheet-metal part (6) via its connection sections (11a and 11b), wherein tabs (7) are formed on the connection sections (11a, 11b) with a bend, which engage the second sheet-metal (6) part via the bend.
2. Door hinge according to Claim 1, characterized in that the first sheet-metal part (5) and/or the second sheet-metal part (6) has fastening bore holes (15) to arrange the holding device (2) on the door leaf (F) or the door frame (Z).
3. Door hinge according to Claim 2, characterized in that the fastening bore holes (15) are formed on the opposite end sections of the first sheet-metal part (5), wherein the end sections are provided with a seating element (21) made of plastic in the direction of the second sheet-metal part (6) respectively.
4. Door hinge according to one of the claims 1 to 3, characterized in that a bar (14) is provided on opposite longitudinal sides of the second sheet-metal part (6) respectively, which is arranged in an offset manner with relation to a centre section (13) of the second sheet-metal part (6) in the direction of the first sheet-metal part (1) by means of a graduation.
5. Door hinge according to Claim 4, characterized in that both bars (14) are respectively engaged from behind by at least two bent tabs (7), wherein the bent tabs (7) are flush with the centre section (13) on an outer side formed by the second sheet-metal part (6).
6. Door hinge according to one of the claims 1 to 5, characterized in that the first sheet-metal part (5) and the second sheet-metal part (6) are attached by means of at least one screw (16) in addition to the positive-locking connection by means of the bent tabs (7) .
7. Door hinge according to one of the claims 1 to 6, characterized in that the adjusting spindles (9) are inserted with a thread into a threaded bore hole of an adjusting plate (8), which can be positioned by means of rotating the adjusting spindles (9) between the first sheet-metal part (5) and the second sheet-metal part (6) so that the first hinge flap (1) can be adjusted at the adjusting plate (8) in a direction perpendicular to the longitudinal axis of the adjusting spindles (9) in a second direction (z) along a positive-locking guide and that the first hinge flap (1) wraps around longitudinal edges of the adjusting plate (8) by means of a doubled offset.
8. Door hinge according to Claim 7, characterized in that at least one clamping screw (17) is provided, which engages in elongated hole of the adjusting plate (8) and engages into a threaded bore hole of the first hinge flap (1) with a thread.
9. Door hinge according to Claim 8, characterized in that the clamping screw (17) has in the formation as a dismounting safety feature on the free end of the thread.
10. Door hinge according to one of the claims 7 to 9, characterized in that an adjustment device is provided on the adjusting plate (8) and the first hinge flap (1) to position the first hinge flap (1) along the second direction (z).
11. Door hinge according to Claim 10, characterized in that the adjustment device has at least one adjustment screw (18) inserted into the adjusting plate (8), which acts on a wedge surface of the first hinge flap (1) or a wedge (19) abutting the first hinge flap (1).

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