WO2011063877A1

WO2011063877A1 - Hinge for a door of a motor vehicle

Info

Publication number: WO2011063877A1
Application number: PCT/EP2010/006315
Authority: WO
Inventors: Martin Bohn; Wolfgang Much; Willibald Assmann
Original assignee: Daimler Ag
Priority date: 2009-11-28
Filing date: 2010-10-15
Publication date: 2011-06-03
Also published as: DE102009056207A1; DE102009056207B4

Abstract

The invention relates to a hinge (10) for a door, lid, or similar pivoting leaf of a motor vehicle, comprising a body-side hinge part (12) and a door-side hinge part (14), which can be pivoted relative to each other about a pivot axis (S) and between which acts an integrated door holding device (20) that produces a retaining force (FH) that varies at least in some ranges over an opening angle range, wherein the opening angle range of the hinge parts (12, 14) comprises a holding range (H) having smaller opening angles (ω) and a comfort range (K) having comparatively larger opening angles (ω), wherein the varying holding force (FH) of the integrated door holding device (20) is lower at least in some ranges in the comfort range (K) than in the holding range (H).

Description

Daimler AG

Hinge for a door of a motor vehicle

The invention relates to a hinge for a door, flap or the like pivotable wing of a motor vehicle specified in the preamble of claim 1. Art.

Such a hinge can already be seen, for example, from WO 99/54582 A1 as known, in which a body-side and a door-side hinge part are provided, which are pivotable relative to one another about a pivot axis and between which one, over an opening angle range at least partially varying holding force generating, integrated door holding device acts. In other words, a door holding device is provided between the two hinge parts, which has a corresponding braking and holding function, wherein the holding force in the door opening direction continuously increases both when opening and when closing the door. By this continuous increase in the holding force should be achieved when opening the door, a corresponding support and fixation. Conversely, when closing the door, the holding force should decrease continuously to facilitate closing.

A problem with this known hinge is the fact that with increasing opening angle, the holding force and the holding torque increases significantly, with the work to be done as an integral with the holding torque based on the opening angle range or the angle curve. The rising with increasing opening swivel angle holding torque causes a relatively stiff door opening or door closure.

Object of the present invention is therefore to provide a hinge of the type mentioned, with which a much more comfortable opening and closing of the door, flap or the like pivotable wing can be realized.

This object is achieved by a hinge with the features of claim 1. Advantageous embodiments with appropriate and non- trivial developments of the invention are in the other claims

specified.

To create a hinge by means of which a much more comfortable

Door opening or door closure can be realized, it is provided according to the invention that the opening angle range of the hinge parts of the hinge comprises a holding area with smaller opening angles and a comfort area with contrast larger opening angles, wherein the varying holding force of the integrated

Door holding device in the comfort area at least partially lower than in the holding area. In other words, it is inventively provided to make the holding force of the door holding device in a door opening direction initially provided holding area larger than in a subsequent door opening direction comfort area. Namely, in order to reduce the feeling of stiffness of the two hinge parts of the hinge relative to each other at larger opening pivot angles, the

Holding force in the adjoining in the door opening direction of the holding area comfort range. Thus, a holding force or a holding torque is generated, which has only in a narrow or small opening angle range - the holding area - an increased value, for example, to hold the door in this position, but then at larger opening swivel angles in a wide range of angles - The comfort range - again preferably drops significantly. This results in a hinge, by means of which a much more comfortable opening and closing of the door is possible, since it can be actuated without excessive force, in particular for larger opening pivot angles.

In particular, it can be achieved by means of the holding region that, for example, in the case of a motor vehicle parked on a slope as a result of gravity, the door is moved only so far in the direction of the closing direction until it reaches the holding region of the hinge. In this holding area is then spend a greater force to close the door completely. Conversely, first when opening the door of the

Holding area and the corresponding higher holding power to be overcome before the door can be opened more easily.

In a further embodiment of the invention, it has proven to be advantageous if the opening angle range of the hinge parts comprises a freewheeling area with opening angles which are smaller than the opening angle of the holding area or the

Comfort range, wherein the holding force of the integrated Türhalteeihrichtung in

Freewheeling range is at least approximately constant. Thus, a freewheel area created, which is arranged in the door opening direction of the holding area and thus ensures that in a first opening or a final closing phase of the door is given a corresponding ease.

A further advantageous embodiment provides that the opening angle range of the hinge parts comprises a damping area with opening angles which are greater than the opening angle of the comfort area or the holding area, wherein the holding force of the integrated door holding device in the damping area becomes larger

Opening angle increases. This can be provided in a final door opening phase - ie at large opening angles - even a cushioning.

A further advantageous embodiment provides that the holding force of the integrated door holding device in the holding area from the smaller to the larger opening angle has a rising area, a substantially constant central area and a sloping last area. This results in corresponding starting ramps when opening and closing the door in the holding area, so as to achieve a total of a simple and smooth door opening or door closing.

A further advantageous embodiment provides that the holding force of the integrated door holding device in the comfort area is designed to extend arcuately, wherein the holding force from the smaller to the larger opening angle has a sloping and a rising area. As a result of this configuration of the course of the holding force, a particularly favorable opening movement in the comfort range is achieved between the holding region and the damping region.

Finally, it has proved to be advantageous if the holding force of the integrated

Door holding device is formed arcuately extending in the damping region. This results in an extremely comfortable control of the holding force up to a

End stop.

Further advantages, features and details of the invention will become apparent from the following description of a preferred embodiment and from the drawings; these show in:

Fig. 1 is a schematic and sectional side view of a

Hinge for a door, flap or the like pivoting wing of a motor vehicle with a body-side hinge part and with a door-side hinge part, which are pivotable about a pivot axis relative to each other and between which one over an opening angle range at least partially varying

Holding force generating integrated door holding device acts;

Fig. 2 is a schematic representation of a possible constructive

Embodiment of the integrated in the hinge door holding device, which has a counter-surface, for example, the radial development of the hinge pin of the hinge cooperating for example with a holding force generating spring-loaded pressure piece; and in

Fig. 3 is a schematic diagram of the course of the holding torque or the

Holding force with respect to the respective opening angle of the door or the hinge, the correspondingly illustrated opening angle range of the hinge parts first comprises a freewheel area, then a holding area, subsequently a comfort area and finally a damping area with increasing opening angle, in which the generated by the door holding device Holding force or the corresponding holding torque in the manner shown vary.

In Fig. 1, a hinge 10 for a door, flap or the like pivotable wing of a motor vehicle is shown in a schematic side view in section. In the present embodiment, the hinge 10 for a side door of a

Passenger car provided, but other doors such as rear doors with such hinges 10 may be provided. It would also be conceivable, other flaps or hinged wing to cars with such

Hinges 10 equip.

As can now be seen from FIG. 1, the hinge 10 comprises a body-side

Hinge part 12, which may for example be attached to a door pillar, a side wall or at another portal part of the body or the construction of the motor vehicle. A peripheral hinge part 14 is pivotally supported about a pivot axis S on the body-side hinge part 12, in the present case by mediation of a corresponding hinge pin 16. The hinge pin 16 is present rotationally fixed to the door-side hinge part 14. When opening or closing the door and a corresponding movement of the door-side hinge part 14 relative to the body-side hinge part 12 thus the hinge pin 16 moves relative to an inner peripheral side of the body-side hinge part 12th

The hinge 10 has an integrated door holding device 20 with which the two hinge parts 12, 14 can be held in certain positions relative to each other. These positions are for example the preferred opening positions of a

Vehicle door, which correlate with a corresponding opening angle. The

Door holding device consists in the illustrated embodiment of a pressure piece 22 which is biased by a spring 23 in a through hole 26 of the hinge part 12 is arranged. The spring 23 is supported at one end on a closure part 28, which is screwed via a threaded connection in the hinge part 12 and closes the through hole 26 at the end. At its opposite end, the spring 23 is supported on the pressure piece 22, which is formed by this spring force against the hinge pin 16 and against a formed on the hinge pin 16

Counter surface 24 is pressed, wherein the hinge pin moves when operating the hinge relative to the hinge part 12 and thus also to the pressure piece 22. By screwing the closure part 28 into the through hole 26 of the

Hinge part 12, the spring 23 is biased so that the pressure piece 22nd

is continuously adjacent to the hinge pin 16 under the force of the spring 23. The holding force generated by the pressure piece 22 on the hinge pin 16 thus essentially depends on the formation of the counter surface 24 in the outer periphery of the

Hinge pin 16 off. Variations in this holding force can thus be realized preferably by corresponding changes in the outer contour of this counter surface and thus of the hinge pin 16. This way, with the integrated

Door holding device 20 realized a friction-based in the hinge 10 integrated door holder.

2 shows, in a schematic representation, the action of the pressure element 22 loaded with the spring 23 on the surface of the hinge pin 16 in the region of the counter surface 24, the circumference of the hinge pin 16 being shown as a radial development. In conjunction with FIG. 3, the mode of operation of the

Door holding device 20 are explained on the basis of the diagram shown there, on the ordinate a holding force FH or a holding torque MH is removed against an ablated on the abscissa opening angle ω or opening angle range of the two hinge parts 12, 14 of the hinge 10. The illustrated opening angle range of the opening angle ω begins with the ordinate with 0 °.

In conjunction with FIGS. 2 and 3, it can now be seen that the opening angle range is subdivided into a plurality of subregions. When opening the door or the hinge 0, that is, starting from ω = 0 °, the pressure piece 22 first slides on a plane or

constant spaced surface 26 of the mating surface 24 of the hinge pin 16, so that in a so-called freewheeling range F (Fig. 3) initially results in a constant holding force FH and a constant holding torque MH. In this freewheel area F small movement forces are required to move the two hinge parts 12, 14 relative to each other.

As can be seen from Fig. 3, closes at the freewheeling area F at increasing opening angle ω - ie at further opening door - a holding area H, in which the holding force FH and the holding torque MH increase significantly. This is - as can be seen from Fig. 2 - achieved by a corresponding contour 28 of the counter surface 24 of the hinge pin 16.

In order to take a closer look at this holding area H, it can be seen there that the holding force FH of the integrated door holding device 20 changes from smaller to larger

Opening angle ω out first a rising portion 30, then an im

Substantially constant region 32 and then a sloping region 34 passes. In other words increases - according to the contour 28 of the

Counter surface 24 - in the holding region H, the holding force FH initially in the rising region 30, then remains at least substantially identical in the constant region 32 and then drops slightly again in the sloping region 34, but not on the overall lower level of holding force FH in the initial freewheeling area F.

As can also be seen from Fig. 3, closes at the holding area H at even larger opening angles ω or at a further open the door or the

Hinge 10 a comfort area K on. In this comfort area K, which relative to the holding area H larger opening angle ω of the two hinge parts 12, 14 relative to each other, the holding force FH and the holding torque MH of the integrated runs Door holding device 20 substantially arcuate. Of more importance, however, is that the holding force or the holding torque in the comfort area K in the present case over all opening angle ω of the comfort area K is less than in the holding area H. In other words, it can be seen from Fig. 3 that following the holding area H. the holding force FH or the holding torque MH drops significantly, with a force level setting, which is slightly above the force level in the freewheeling area F. Furthermore, it can be seen from FIG. 3 that the arcuate profile of the holding force FH has a sloping region 36 and a rising region 38 from the smaller to the larger opening angle ω. The course of the holding force FH or the holding torque MH results in an analogous manner by a contour curve 40 of the mating surface 24 (FIG. 2).

As is apparent from FIG. 3, the comfort region K is adjoined by a damping region D as the opening angle ω increases, which is optionally provided and which serves, for example, as end cushioning for the hinge 10 or the corresponding door. By such end cushioning optionally the vehicle structure or the door and the hinge 10 against excessive

Kraftbeaufschlagungen be protected.

It can also be seen from FIG. 3 that the holding force in the damping region D increases in an arcuate manner as the opening angle ω increases, in order thereby to limit the opening angle ω to a desired extent.

The holding force FH in the damping region D is mapped in an analogous manner - as can be seen from FIG. 2 - by a corresponding contour 42 of the counter surface 24.

When opening the door is thus in the region of the hinge 10 by means of

Door holding device 20 generates an at least partially varying holding force FH, which initially remains constant at low opening angles ω in the freewheeling area F, to generate low movement forces of the door. In the holding area H then rises

Holding force FH and the corresponding holding torque MH significantly, after which in the comfort area - ie with respect to the holding area H larger opening angles ω - the corresponding holding force FH and the corresponding holding torque MH is again formed significantly lower. At still rising

Opening angles ω is then optionally a damping region D provided, so that by means of the door holding device 20, an end position of the opening angle ω of the two hinge parts 12, 14 is provided relative to each other. The peculiarity of the force curve of the holding force FH of the door holding device 20 is that in the comfort area K - ie in the door opening direction following the holding area H - sets a much lower level of force of the holding force FH, so that the door can be opened much easier. Thus, in order to open the door and pass through the freewheeling area F, first the holding area H with greater holding force FH has to be overcome, after which the door opens on further opening in the

Comfort area K is much easier to pivot or open. This significantly increases the comfort when opening the door, which gives the user a haptic that conveys ease of movement while still retaining positions.

Conversely, when closing the door, first the comfort area K is traversed, in which lowered movement forces for moving the body-side and the door-side hinge part 12, 14 relative to one another are required. Upon further closing of the door then the holding area H must be traversed, this ensures, for example, that when parking the vehicle on the slope, the hinge 10 and the door in the holding area H is stopped.

After overcoming this holding area H, for example by manual pulling, the door can then be completely closed.

By appropriate coatings of both the pressure piece 22 and the

Counter surface 24 of the hinge pin 16, the effect of the invention, continuous, friction-based door holder can be further enhanced by the

Comfort range reduces the frictional force and in the holding area, the adhesive force is increased by a corresponding coating.

Overall, the invention leads to a continuously adjustable, friction-based, integrated door holding device with at least one holding area, in which the vehicle door is held securely even when a hanging position of the vehicle, with a

Comfortable area in which the door can be moved with very little effort, and with an optional damping area at the maximum opening angle of the door.

Claims

claims

Hinge (10) for a door, flap or the like. Swiveling wing of a

Motor vehicle, with a body-side hinge part (12) and a door-side hinge part (14) which are pivotable relative to each other about a pivot axis (S) and between which an over an opening angle range at least partially varying holding force (FH) generating integrated door holding device (20) acts .

characterized in that

the opening angle range of the hinge parts (12, 14) comprises a holding area (H) with smaller opening angles (ω) and a comfort area (K) with larger opening angles (ω), wherein the varying holding force (FH) of the integrated door holding device (20) is in the comfort zone (K) at least

partially lower than in the holding area (H).

Hinge (10) according to claim 1,

characterized in that

the opening angle range of the hinge parts (12, 14) comprises a freewheeling area (F) with opening angles (ω) which are smaller than the opening angles (ω) of the holding area (H) or the comfort area (K), wherein the holding force (FH) of the integrated door holding device (20) in the freewheeling range (F) is at least approximately constant.

Hinge (10) according to claim 1 or 2,

characterized in that

the opening angle range of the hinge parts (12, 14) comprises a damping area (D) with opening angles (ω) which are larger than the opening angles (ω) of the comfort area (K) or the holding area (H), the holding force (FH) of the integrated door holding device (20) in the damping region (D) with increasing opening angle (ω) increases.

4. Hinge (0) according to one of the preceding claims,

characterized in that

the holding force (FH) of the integrated door holding device (20) in the holding region (H) from the smaller to the larger opening angle (ω) has a rising region (30), a substantially constant region (32) and a sloping region (34).

5. Hinge (10) according to one of the preceding claims,

characterized in that

the holding force of the integrated door holding device (20) in the comfort area (K) is arc-shaped, wherein the holding force (FH) from the smaller to the larger opening angle (ω) towards a sloping region (36) and a rising portion (38).

6. Hinge (10) according to one of the claims,

characterized in that

the holding force (FH) of the integrated door holding device (20) in the damping region (D) is designed to extend arcuately.