EP2497885A2 - Door hinge with check function - Google Patents

Abstract

The door hinge (1) has a door leaf side mounted pivoting portion (2) attached to a frame (4) about a pivot axis (3) using a hinge pin (5). The pivoting portion rotatable bearing surface and the support face complementary frame-side mating surface form a sliding pairing. The pivoting portion is lifted from a zero-angle position by a lifting device and placed in the threshold angle position, and the pivoting portion is lowered to the end angle position by the lowering device.

Description

The invention relates to a door hinge with self-holding function for a door leaf according to the preamble of the main claim.

Such a door hinge is for example from the DE 102 54 032 B4 known. The door hinge described there has a door leaf side mounted pivot part, which is pivotable about an axis of rotation of a frame attached to a hinge pin. The self-holding function is realized in this case by a arranged on a radial outer side of the hinge pin locking contour. In this case, at least one latching body is arranged on the pivoting part, which rests with radial prestress against the latching contour.

The DE 15 307 61 A describes a door construction for motor vehicle trailers. The tailgate described there has a door leaf which is mounted by means of a hinge in question on the frame of the motor vehicle trailer, wherein the door hinge shown there, however, has no self-holding function.

The object of the invention is to provide a door hinge with self-holding function under increased utility value in particular for door leaves of doors for cargo holds of trucks and / or trailers.

This object is achieved by the invention with the features of the main claim.

According to the self-holding function between a predetermined zero angle position over a predetermined Threshold angular position also realized up to a predetermined Endwinkelstellung of the pivot member by the pivot member with insertion of a starting from the zero angle position of the pivot part pivoting movement until reaching the threshold angular position by means of a concentrically arranged about the rotation axis lifting device in the vertical direction to the rotation axis can be raised.

Furthermore, the invention provides for the realization of the self-holding function, that the pivoting part is lowered again after exceeding the threshold angular position while continuing the pivoting movement until reaching the Endwinkelstellung of the pivot member by means of a concentrically arranged about the axis lowering device, wherein the pivoting part held by the lowering device in the Endwinkelstellung becomes.

From the invention, there is the advantage that the potential energy of the pivoting part applied by the vertical lift of the lifting device can be used for the lowering device, so that the pivoting part can automatically be transferred into the final angular position by exceeding its threshold angular position by utilizing its potential energy.

With the concentric arrangement of the lifting and lowering device about the axis of rotation, the said devices can be formed for example in a particularly simple manner by helically rising or helically sloping surface pairings between the pivoting part and the frame.

For this purpose, it is proposed that as a lifting device a lifting surface pairing increasing at a predetermined pitch angle and as a lowering device a lowering surface pairing falling below a predetermined reduction angle is provided. Preferably, the potential energy of the raised up to the threshold angular position pivoting part is exploited, in which at least the reduction angle is adjusted taking into account the static friction coefficient of Absenkflächenpaarung such that the pivoting part automatically transfers from the zero angular position after exceeding the threshold angle position by exploiting its potential energy in the Endwinkelstellung ,

The invention has recognized that a door hinge in question in its position of use has a lower, about the axis of rotation and rotatable with the pivoting part bearing surface, which forms a pair of sliding surfaces with a support surface complementary to the frame side counter surface.

In a particularly simple manner, the said Gleitflächenpaarung can be exploited to form the Hubeflächenpaarung or for forming the Absenkflächenpaarung by the Hebeflächenpaarung is formed in the pivoting range of the hinge part between the zero angle position and the threshold angular position of the surfaces of Gleitflächenpaarung and in addition to the Absenkflächenpaarung in the pivoting range of the hinge part between the threshold angular position and the final angle position is also formed by the surfaces of the Gleitflächenpaarung.

Preferably, the pivoting part is in the zero angle position and in the Endwinkelstellung in a stable equilibrium position. In particular, by the countersink angle, which must be overcome from the Endwinkelstellung back to the threshold angle position of the pivoting part, it is ensured that the pivoting part with the door leaf can only be transferred with increased effort beyond the threshold angle position in the zero angle position. It can also be the pitch angle of the lifting surface pairing taking into account the static friction coefficient of the lifting surface pairing also be set so that the pivoting part automatically transfers from the Endwinkelstellung after exceeding the threshold angle position in the zero angle position.

In this case, means, for example a lever device, may be provided for connection to the pivoting part, with which the lowering device for a pivoting back of the pivoting part from the Endwinkelstellung is selectively put out of force, e.g. in addition to determine the door leaf.

Preferably, the lifting surface pairing and the lowering surface pairing merge into one another in the region of the threshold angular position in a transition region. The transition region between the lifting surface pairing and the lowering surface pairing is preferably rounded. This measure allows in particular a particularly smooth pivoting of the pivoting part in the transition between the respective surface pairings.

Preferably, an upper sliding surface pairing, which is at least partially designed as a complementary counterpart to the lower sliding surface pairing, is additionally provided on the hinge part. With this measure it is achieved that the vertical clearance of the moving between the respective angular positions of the pivoting part is compensated by the complementary complementary piece, so that the pivoting part is always flanked at its respective lower and upper Gleitflächenpaarungen constrained by the frame-side mating surfaces.

Particularly preferred in this case is an upper sliding surface pairing in the position of use which is completely designed as a complementary counterpart to the lower sliding surface pairing is, so that the hinge part with the frame can also be installed in such a way that the upper pair of sliding surfaces standing upside down can also be used as a lower sliding surface pairing.

In particular, with regard to a use of the door hinge on door leaves of cargo doors of trucks and / or trailers is proposed that the zero angle position of the hinge part at 0 degrees, the threshold angular position at 180 degrees and in particular the Endwinkelstellung is 270 degrees. With this measure, the door leaf can be brought from a closed starting position, in which the load compartment of a truck and / or trailer is completely closed, in an end position in which the door leaf rests against an outer side of the truck and / or trailer. Such a door hinge comes with only a single axis of rotation, if one uses a corresponding cranked door, as shown in the embodiment.

For a tension-free installation of the door panel equipped with the door hinge according to the invention in an end angle position of 270 degrees, it is therefore proposed that a cranked door leaf is used as the door leaf. For this purpose, provisions are provided for a crank of the door leaf in the region of the axis of rotation, which allow in the end position of the door leaf a constraint-free application of the door leaf with its outer side on the outer side of the truck and / or trailer.

For a proper function of the door hinge according to the invention, the use of a single door hinge on an intended door leaf is completely sufficient. It is provided that only a door hinge is used together with a plurality of vertically arranged one above the other with their rotary axes conventional door hinges, wherein the conventional door hinges have a minimum vertical play, which corresponds to the largest possible vertical stroke of the door hinge.

Conventional door hinges usually have an upper and a lower bearing surface, which is flanked by an upper and a lower complementary mating surface of the door frame. The vertical movement possibility of the pivoting part between the flanking mating surfaces is understood here as a vertical play. The mating surfaces may be part of a flange which can be attached to the frame, for example that of a truck and / or trailer, wherein the flanges with their respective mating surfaces spaced apart from each other on the frame can be secured such that at one between the Opposing surfaces used pivot part present above a minimum vertical play.

In the following the invention will be explained in more detail by means of exemplary embodiments.

Fig.1

ein erfindungsgemäßes Türscharnier an einem gekröpften Türblatt in Ansicht von oben;

Fig.2

eine schematische Darstellung der abgewickelten unteren Gleitflächenpaarung gem. Fig.1;

Fig.3

ein erfindungsgemäßes Türscharnier in Vorderansicht.

Show it:

Fig.1

an inventive door hinge on a cranked door leaf in top view;

Fig.2

a schematic representation of the developed lower sliding surface pairing acc. Fig.1 ;

Figure 3

an inventive door hinge in front view.

Unless otherwise stated below, the following description applies to all figures.

especially the FIGS. 1 and 3 show an inventive door hinge 1 with self-holding function for a door leaf 16. The door hinge 1 has a door leaf side mounted pivot part 2 which is pivotally mounted about a rotation axis 3 of a frame 4 mounted on a hinge pin 5. This is especially true in Fig.1 shown.

In particular from Figure 3 It will be seen that the pivoting part 2 is provided with a lower and an upper bearing surface extending around the rotation axis 3 and rotatable with the pivoting part 2, forming a lower sliding surface pairing 6 and an upper sliding surface pairing 7 with a frame-side counter surface complementary to the respective bearing surface ,

The respective mating surface is part of an upper or lower flange 17,18. The flanges 17 and 18 are spaced apart with their opposing opposing surfaces such that their immediately adjacent complementary bearing surfaces are flanked by the frame-side counter surfaces to form a more or less pronounced vertical play.

According to the self-holding function is realized between a predetermined zero angle position 8 beyond a predetermined threshold angle position 9 to a predetermined Endwinkelstellung 10 by the pivot member 2 with insertion of an outgoing from the zero angle position 8 of the pivot part 2 pivoting movement until reaching the threshold angle position 9 by means of a concentric around the Rotary axis 3 arranged lifting device 11 in the vertical direction to the rotation axis 3 can be raised. To realize the self-holding function is further provided that the pivoting part 2 after exceeding the threshold angle position 9 while continuing the pivoting movement to reach the Endwinkelstellung 10 of the pivot member 2 by means of a concentrically arranged about the rotation axis 3 lowering device 12 is lowered again, wherein the pivot part 2 of the lowering 12 is held in the Endwinkelstellung 10.

This situation is particularly in Fig.2 shown where a Gleitflächenpaarung of 270 ° is shown. From the invention there is the advantage that the potential energy applied by the lifting device 11 in the area of the threshold angle position 9 can be utilized for the lowering device 12 in order to automatically transfer the pivoting part 2 into the final angle position 10 after the threshold angular position 9 has been exceeded. This of course also applies in the reverse case, namely when the pivoting part 2 is brought from the Endwinkelstellung 10 via the lowering device 12 in the threshold angle position 9.

According to the invention, the self-holding function is carried out in a particularly simple manner in which the lifting device 11 and the lowering device 12 each form screw-like surface pairs extending between the pivoting part 2 and the frame 4 about the axis of rotation 3.

In the exemplary embodiment shown, a lifting surface pairing 13 rising at a predetermined pitch angle is provided as the lifting device 11, and a lowering surface pairing 14 sloping below a predetermined reduction angle is provided as the lowering device 12. To exploit the potential energy of the pivoting part 2 in the threshold angle position is hereby provided that at least the countersink angle is adjusted taking into account the static friction coefficient of Absenkflächenpaarung 14 such that the pivot member 2 from the zero angle position 8 out after exceeding the threshold angle 9 independently in the Endwinkelstellung 10 handed over. This can of course also with the pitch angle of the Hebeflächenpaarung 13 with respect to a repositioning of the pivoting part. 2 made from the Endwinkelstellung 10 in the zero angle position 8.

For pivoting the pivoting part 2 from the zero angle position 8 in the Endwinkelstellung 10 and from the Endwinkelstellung 10 in the zero angle position 8, means, for example a lever device may be provided for connection to the pivot member, with which the lowering device 12, and the lifting device 11 for a respective pivoting back of the pivoting part 2 from the Endwinkelstellung 10, or from the zero angle position 8, optionally can be put out of force, eg a door lock or an end-door lock.

Preferably, the inserted door leaf 16 is made of fiber-reinforced plastic material, so that the door leaf 16 with the attached there pivot part 2 is also easily adjustable by hand between the respective angular positions 8,9,10.

The embodiment of the invention shows a particularly simple way to provide such surface pairings, namely by the existing Gleitflächenpaarungen 6.7 are modified according to the invention. It is provided that the Hebeflächenpaarung 13 is formed in the pivoting range of the hinge part 2 between the zero angle position 8 and the threshold angle position 9 of a pair of surfaces of the Gleitflächenpaarung 6 and in addition thereto the Absenkflächenpaarung 14 in the pivoting range of the hinge part 2 between the threshold angle position 9 and the Endwinkelstellung 10th is formed by a second pair of surfaces of the Gleitflächenpaarung 6. For this purpose, one as the other sliding surface of the lifting device 11 and the lowering device 12 is formed in the manner of a roof-shaped prism, each with matching inclination angles of lifting or lowering device 11,12.

From the invention there is the advantage that known and proven designs of door hinges can be maintained in which only their respective Gleitflächenpaarungen 6.7 must be modified according to the invention to allow the advantages of the invention in adjusting a door hinge 16 equipped with the door 16.

Especially Fig.2 shows that the Hebeflächenpaarung 13 and the Absenkflächenpaarung 14 in the region of the threshold angle position 9 in a transition region 15 merge into each other. The transition region 15 is rounded between the lifting surface pairing 13 and the Absenkflächenpaarung 14, which in particular in a detail of the Fig.2 is shown.

Furthermore, it shows in particular Figure 3 in that on the hinge part 2 shown in its position of use, an upper pair of sliding surfaces 7 is provided, which is designed as a complementary counterpart to the lower pair of sliding surfaces 6. This measure has the consequence that the door hinge 1 shown there without loss of the advantages of the invention also rotated 180 degrees on the frame 4 can be installed. In such a case, the upper sliding surface pairing 7 shown assumes the lowering or lifting function of the lower sliding surface pairing 6 currently shown.

especially the Figures 1 and 2 show that the zero angle position 8 of the hinge part 2 at 0 degrees, the threshold angle position 9 at 180 degrees and the end angle position 10 at 270 degrees. That the threshold angle position 9 is 180 ° is hereby exemplified. If permitted by the invention, the threshold angular position can also be within the pivoting range of 270 degrees above or below 180 °. The door hinge 1 is in particular provided for a door leaf 16 of a cargo door of a truck and / or trailer. In the zero angle position 8, the cargo space 19 of such a vehicle is completely closed by the door leaf 16. With the selected angle range of 0 degrees over a threshold angle position 9 in the Endwinkelstellung 10 of 270 degrees, the door panel 16 can be pivoted with its outer side readily against the outer side of the frame 4 of a vehicle, not shown. For this purpose, moreover, the door leaf 16 is a cranked door leaf. For a constraint-free installation of the door leaf 16 with its outer side 20 on the outer side 21 of the frame 4 measures for the cranking of the door leaf 16 in the region of the axis of rotation 12 are provided. In this respect, reference is made in full to the content of the patent application filed under number 10 2010 052 121.3 before the DPMA.

The in the Fig.2 illustrated lower Gleitflächenpaarung 6 is shown in a schematic manner. The Hebeflächenpaarung 13 and the Absenkflächenpaarung 14 are V-shaped to each other, which is particularly evident in the threshold angle position shown 9 of the pivot part 2 shown schematically. In the transition between the respective surface pairings takes place in particular on the rounded transition region 15, a stepless transition between the Hebeflächenpaarung 13 and the Absenkflächenpaarung 14. It can be seen that when sliding the Hebeflächenpaarung 13 in the range between 0 degrees and 180 degrees, the Absenkflächenpaarung 14 has no function and when slipping the Absenkflächenpaarung 14 in the range between 180 degrees and 270 degrees, the lifting surface pairing 13 is also non-contact and thus not in function. The pivoting part 2 is in the zero angle position 8 and in the Endwinkelstellung 10 in a stable equilibrium position. It is provided that this remains without manual attack on the door leaf 16 in the respective stable equilibrium position.

Preferably, only one door hinge 1 is used together with a plurality of vertically arranged one above the other with their axes of rotation 3, conventional door hinges. For this purpose, the conventional door hinges on a minimum vertical play, which corresponds to the largest possible vertical stroke of the door hinge, so that the door hinge 1 according to the invention is not hindered in its function.

LIST OF REFERENCE NUMBERS

1

door hinge

2

pivoting part

3

axis of rotation

4

frame

5

hinge pin

6

lower sliding surface pairing

7

upper sliding surface pairing

8th

Zero angular position

9

Threshold angle position

10

Endwinkelstellung

11

hoist

12

lowering

13

Lifting surface pairing

14

Absenkflächenpaarung

15

Transition area

16

door leaf

17

upper flange

18

lower flange

19

hold

20

outer side of the door leaf

21

outer side of the frame

Claims (12)

Door hinge (1) with self-holding function for a door leaf (16), with a door leaf side mounted pivot member (2) which is pivotable about an axis of rotation (3) mounted on a frame (4) hinge pin (5) and with a lower to the Rotary axis (3) extending and with the pivoting part (2) rotatable bearing surface which forms a Gleitflächenpaarung (6) with a support surface complementary, frame-side mating surface, characterized in that the self-holding function between a predetermined zero angular position (8) over a predetermined threshold angular position (9) in addition to a predetermined Endwinkelstellung (10) is realized by the pivoting part (2) with insertion of a zero angle position (8) of the pivoting part (2) outgoing pivoting movement until reaching the threshold angular position (9) by means of a concentric about the axis of rotation (3 ) arranged lifting device (11) in the vertical direction to the rotation axis (3) is liftable and after Passing the threshold angle position (9) while continuing the pivoting movement until reaching the Endwinkelstellung (10) of the pivoting part (2) by means of a concentrically about the rotation axis (3) arranged lowering device (12) is lowered again, wherein the pivoting part (2) of the lowering device (12) is held in the Endwinkelstellung (10). Door hinge (1) according to claim 1, characterized in that means, such as a lever device, for connection to the pivoting part (2) are provided, with which the lowering device (12) for pivoting back of the pivoting part (2) from the Endwinkelstellung (10 ) is optionally overrideable. Door hinge (1) according to one of claims 1 to 2, characterized in that there is provided as lifting device (11) a lifting surface pairing (13) rising at a predetermined pitch angle and as a lowering device (12) a lowering surface pairing (14) falling below a predetermined lowering angle, wherein at least the countersink angle, taking into account the coefficient of static friction of the Absenkflächenpaarung (14) by selecting a corresponding reduction angle is set such that the pivoting part (2) from the zero angular position (8) out after exceeding the threshold angle position (9) automatically in the Endwinkelstellung (10) transferred. Door hinge (1) according to claim 3, characterized in that the Hebeflächenpaarung (13) in the pivoting range of the hinge part (2) between the zero angle position (8) and the threshold angular position (9) of the surfaces of the Gleitflächenpaarung (6) is formed. Door hinge (1) according to claim 3, characterized in that the Absenkflächenpaarung (14) in the pivot region of the hinge part (2) between the threshold angular position (9) and the Endwinkelstellung (10) of the surfaces of the Gleitflächenpaarung (6) is formed. Door hinge (1) according to one of claims 3 to 5, characterized in that the Hebeflächenpaarung (13) and the Absenkflächenpaarung (14) in the region of the threshold angle position (9) in a transition region (15) merge into one another. Door hinge (1) according to claim 6, characterized in that the transition region (15) between the Hebeflächenpaarung (13) and the Absenkflächenpaarung (14) is rounded. Door hinge (1) according to one of claims 1 to 7, characterized in that on the hinge part (2) in the use position upper sliding surface pairing (7) is provided, which is at least partially designed as a complementary counterpart to the lower sliding surface pairing (6). Door hinge (1) according to one of claims 1 to 8, characterized in that the zero angle position (8) of the hinge part (2) at 0 degrees, the threshold angle position (9) at 180 degrees and the Endwinkelstellung (10) at 270 degrees. Door hinge (1) according to one of claims 1 to 9, characterized in that the door hinge (1) is provided for a cranked door leaf (16). Door hinge (1) according to one of claims 1 to 10, characterized in that the pivoting part (2) is in the zero angular position (8) and in the Endwinkelstellung (10) in a stable equilibrium position. Door hinge (1) according to one of claims 1 to 11, characterized in that only a door hinge (1) is used together with a plurality of their axes of rotation (3) vertically stacked conventional door hinge, wherein the conventional door hinges have a minimum vertical play, the corresponds to the maximum vertical lift of the door hinge (1).

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