EP2547852A1

EP2547852A1 - Hinge for a door of a motor vehicle

Info

Publication number: EP2547852A1
Application number: EP10794902A
Authority: EP
Inventors: Martin Bohn
Original assignee: Daimler AG
Current assignee: Mercedes Benz Group AG
Priority date: 2010-03-16
Filing date: 2010-12-18
Publication date: 2013-01-23
Also published as: CN102791948B; WO2011113466A1; US8701251B2; DE102010011628A1; CN102791948A; US20130047378A1; DE102010011628B4

Abstract

The invention relates to a hinge for a door, lid, or similar pivoting leaf of a motor vehicle, comprising a body-side hinge part (10) and a door-side hinge part, which can be pivoted relative to each other about a hinge pin (12), and comprising an integrated door retaining device (22), which has a retaining element (24) arranged on sides of the one hinge part (10), wherein the retaining element interacts with a retaining contour (46) on sides of the other hinge part, wherein the retaining element is designed as a clamping element (24) that interacts with a clamping surface (32) of the hinge pin (12), wherein the clamping force of the clamping element can be adjusted according to the retaining contour (46) by means of a transmitting element (36).

Description

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 according to the preamble of patent claim 1.

Such a hinge can already be seen for example from DE 198 17 699 A1 as known and comprises a body-side and a door-side hinge part, which are pivotable about a hinge pin relative to each other. The hinge in this case comprises an integrated door holding device, which comprises a holding element in the form of a brake and holding body on the side of the one-present body-side hinge part, which has a holding contour on the side of the other hinge part - in this case on the side of the hinge pin connected to the other hinge part - works together. The holding contour has a continuously increasing

Contour course in the manner of a brake ramp.

In such friction-based door holding devices, very high surface pressures may possibly occur on the friction pairings as a result of line contact. These drastically restrict the choice of material and are susceptible to wear. Due to a very high spring rate, the strokes on the friction pairing are very low. On the one hand, this causes very high tolerance requirements in the production process and, on the other hand, it does not permit fine control by means of the retaining contour.

Object of the present invention is therefore to provide a hinge of the type mentioned, which can be built simpler and more compact and also has a much less tolerant door retaining device.

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

specified. To create a hinge of the type mentioned, which can be designed to save space extremely space and its door holding device little

is sensitive to tolerances, the holding element than with a clamping surface of the

Hinge pin cooperating clamping element formed, the clamping force is adjustable via a transmission element in dependence of the holding contour. In other words, it is inventively provided to provide a clamping element, which preferably cooperates with the outer peripheral side of the hinge pin. This clamping element can, for example, embrace the hinge pin, in particular wrap around, wherein the clamping force exerted by the clamping element on the hinge pin clamping force can be varied by means of the transmission element. The variation of the clamping force takes place in dependence of the holding contour, which with a the

Clamping element facing away from the end of the transmission element cooperates.

The present embodiment of the door holding device with the clamping element has the advantage that the hinge can be designed to save space. Such a clamping element can namely produce a considerable clamping force in a small footprint, for example, to decelerate the mutual pivotal movement of the hinge parts or to completely prevent.

Through the use of a transmission element which cooperates with the holding contour, in addition, a corresponding force transmission can be achieved, so that relatively large braking or holding forces of

Door holding device can be achieved in extremely small footprint.

In a further embodiment of the invention, it has been found to be advantageous if the clamping element the hinge pin in a cross-section

annular segment-shaped tube area in an angular range of> 180 ° surrounds. By reducing the inner diameter of this pipe portion can thus be made contact with the corresponding clamping portion of the hinge pin, depending on the setting of the inner diameter by means of the transmission element, the clamping or holding force which is applied to the hinge pin can be increased or decreased. As a result, the transmitted force or the transmitted torque between the two hinge parts can be adjusted in a particularly favorable manner. The retaining contour of the door holding device is preferably provided on the hinge pin itself. In particular, it has proven to be advantageous if the retaining contour is provided on a separate, rotationally fixed to the hinge pin associated contour element. Thus, the rotation of the hinge pin corresponds

or of the associated hinge part for rotation of the retaining contour, which in turn controls the clamping force of the clamping element acting on the hinge pin via the transmission element.

A further preferred embodiment provides that the connecting element between the retaining contour and the clamping element is designed as a transmission lever. Such a transmission lever has the advantage that relatively high clamping forces can be generated. This can be realized in a further embodiment of the invention in particular by the fact that one of the retaining contour facing lever arm of the transmission lever is longer than a clamping arm facing the clamping element. This has the advantage that between the components in frictional contact - the holding contour and the

corresponding lever arm - relatively low frictional forces occur, whereas relatively large forces can be generated on the part of the clamping element on the longer lever arm of the transmission element.

A further preferred embodiment provides that the clamping element rotatably connected to one hinge part and the retaining contour rotatably connected to the other hinge part, in particular with the hinge pin. This results in a particularly simple control of the door holding device.

A further preferred embodiment provides that a pin opening of the corresponding hinge part receiving the hinge pin is thus formed in the cross-section with respect to the hinge pin enlarged passage opening which is closed to both opening sides by means of a respective lid. The relative to the hinge pin enlarged pin or

Through opening has the advantage that the door holding device along the hinge axis from above or from below the corresponding hinge part can be introduced, which means a considerable ease of assembly. Another advantage of the enlarged design of the journal or

Passage opening relative to the hinge pin is that the position of the hinge axis is selectable within a certain scope. This results in an increased design freedom for the hinge. In a simple way, the pin opening formed as a passage opening can be closed by respective upper or lower side attached lid, the lid on the one hand serve to protect the door holding device and on the other hand define the position of the hinge axis.

Another advantage is that such a passage opening is much easier to produce, so that individual hinge parts can be made, for example, from semi-finished products. As a result, also a much simpler structure of the hinge with integrated door holding device and a simpler installation can be realized.

It has been shown to be advantageous in a further embodiment of the invention, when both lids are formed separately from the hinge pin. Thus, the

Spigot opening accessible from both sides and the position of the hinge axis particularly favorable selectable.

A further advantageous embodiment further provides that the

Door holding device is arranged at least substantially within the pin opening. Thus, not only a particularly space-saving hinge can be created, but moreover, the door holding device is arranged particularly protected.

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

1 is a perspective view and a side view of a hinge for a

Door of a passenger car with a body-side hinge part and with a door-side hinge part associated hinge pin about which the hinge parts are pivotable relative to each other, and with an integrated door holding device which is disposed within a hinge pin receiving pin opening of the body-side hinge part, wherein the pin opening so in cross section opposite to the hinge pin enlarged passage opening is formed, which in the present case to both

Opening sides of the passage opening is closed by means of a respective lid; Fig. 2 is an exploded view of the hinge of FIG. 1, wherein in addition to the body-side hinge part and the hinge pin in particular cooperating with a clamping surface of the hinge pin clamping element is recognizable, the clamping force is adjustable via a transmission element in the form of a transmission lever in response to a holding contour, wherein the Holding contour on one

separate, rotatably connected to the hinge pin associated disc-like contour element, and wherein also one of the two covers for closing the through hole is shown;

Fig. 3 is a perspective view of the hinge with the door holding device in a slightly modified embodiment; and in

4 is a perspective bottom view of the door holding device of

Hinge, wherein in particular the hinge pin, with the

Clamping surface of the hinge pin cooperating clamping element and the transmission element in the form of the transmission lever can be seen, which is adjustable in dependence on the holding contour of the disc-shaped contour element.

In Fig. 1, a hinge for a side door of a passenger car is shown in a perspective view and a side view. The present hinge can in principle also for a flap or another pivotable wing in

Used car construction. According to Fig. 2, this hinge is in one

Exploded view shown.

As can now be seen from FIGS. 1 and 2, the hinge initially comprises a body-side hinge part 10, which receives a hinge pin 12 in a manner which will be described in more detail below. The hinge pin 12 is in turn rotatably connected to an unrecognizable door-side hinge part, which is, for example, from the top to a head 14 placed. As a result, the body-side hinge part 10 and the door-side hinge part are pivotable about the hinge pin 12 relative to each other. As can now be seen from FIG. 2, the body-side hinge part 10 has a

Peg opening 16, which increases in cross-section relative to the hinge pin 12 and is formed as a passage opening. In other words, the pin opening 16 is open both to an upper side 18 and an underside 20 of the body-side hinge part 10.

The pin opening 16 is therefore designed to be enlarged in cross-section relative to the hinge pin 12, in particular, because an integrated door holding device 22 is provided, which in combination with FIGS. 3 and 4 can be seen even closer. Fig. 3 shows a perspective view of the hinge, which, however, is somewhat modified. 4 shows a further perspective view of the essential components of the door holding device 22.

The door holding device 22 comprises, in addition to the hinge pin 12, a first

Clamping element 24, which comprises a cross-sectionally circular segment-shaped tube portion 26 and two adjoining legs 28, 30. Of the

Inner diameter of the pipe portion 26 of the clamping element 24 is adapted to an outer diameter of the hinge pin 12 in the region of a clamping surface 32. In other words, a braking or holding force, which a

Movement of the hinge pin 12 brakes or completely prevented, be generated by the fact that the two legs 28, 30 are moved towards each other. This reduces namely the inner diameter of the pipe portion 26, and thus a frictional connection or frictional engagement with the corresponding clamping surface 32 of the hinge pin 12 is achieved.

In the installed state, the leg 28 is supported on a mating surface 34 of the pin opening 16. In other words, the leg 28 thus always remains stationary.

The opposite leg 30, however, can be more or less far away from the leg 28 or approximated to adjust the Bremsbeziehungsweise holding force for the hinge pin 12 and the door-side hinge part.

This is done in the present case by a transmission element 36 in the form of a transmission lever, which is also received within the pin opening 16. The arrangement of the transmission lever 36 is in particular from FIGS. 3 4, wherein it is particularly clear from FIG. 3 that the transmission lever 36 is mounted pivotably on the body-side hinge part 10 about a lever axis 38 extending in the vehicle vertical direction with the geometric axis U. The axis U or the lever axis 38 extend in the present case in the extension direction of the pin opening 16 or in the vehicle vertical direction.

Furthermore, in particular from FIG. 2, a contour element 40 in the form of a disk can be seen, which has a non-rotationally symmetrical or off-centered arrangement

Ittelöffnung 42 includes, via which the contour element 40 can be plugged onto a complementary formed portion 44 of the hinge pin 12. The contour element 40 is thus rotatably connected to the hinge pin 12. In particular, the contour element 40 has on its outer circumference a holding contour 46, whose

Function will be explained in more detail below. As included in the scope of the invention, it should be considered that the retaining contour 46 could possibly also be provided directly on the hinge pin 12.

As can be seen further from FIGS. 2 to 4, the transmission element in the form of the transmission lever 36 has a respective lever arm 48 or 50 on both sides of its axis U. The two lever arms 48, 50 are designed differently long. The longer lever arm 50 faces the retaining contour 46 of the contour element 40, while the shorter lever arm 48 faces the leg 30 of the clamping element 24. The long lever arm 50 stands on one

Sliding cam 52 with the retaining contour 46 of the contour element 40 in sliding contact. At the shorter lever arm 52, a cam 54 is also provided, which is pressed against the leg 30 of the clamping member 24.

As can now be seen in particular from FIGS. 3 and 4, therefore, during the opening or closing of the door and the hinge, an associated rotational movement of the hinge pin 12 relative to the body-side hinge part 10 causes the slide cam 52 of the transmission lever 36 along the retaining contour 46 of the contour element 40 slides. Since the holding contour 46 has a contour with variable radii to the center axis M of the hinge pin 12, a sliding of the leads

Gleitnockens 52 along the retaining contour 46 to a pivoting movement of the

Transmission lever 36. This pivotal movement of the transmission lever 36 in turn causes the leg 30 is moved relative to the fixed leg 28 of the clamping member 24, whereby the clamping force between the tube portion 26 and the clamping surface 32 of the hinge pin 12 can be varied. As a result of Rotary movement of the hinge pin 12 is thus on the holding contour 46 and the transmission lever 36, a different clamping force by means of the clamping member 24 shows, which influences the pivotal movement of the hinge. Depending on the set clamping force, the hinge is easy or stiff. With a particularly high clamping force is consequently also a fixing of the

Hinge pin 12 and the door-side hinge part relative to the body-side hinge part 10. At a low or no clamping force can between the pipe portion 26 and the corresponding clamping surface 32 of the

Hinge pin 12 no frictional contact exist.

Overall, a door holding device 22 is thus created, by means of which the

Opening pivoting movement of the hinge parts 10 and the door can be adjusted. The clamping force is in this case via the transmission element 36 in

Dependence of the holding contour 46 set. Of course, door-specific adjustment of the clamping force can be effected in a simple manner by generating a specific holding contour 46. For this purpose, only the contour element 40 must be selected door-specific. Overall, it can also be seen that the function of generating the

Holding torque of the opening angle-dependent taxes of the holding torque is separated. The one function is namely by the holding contour 46, the other function by the clamping element 24th

Furthermore, it can be seen that the friction pairing by partially wrapping around the

Hinge pin 12, which leads to a significantly lower surface pressure. In particular, it can be seen from FIG. 2 that the tube region 26 encompasses the hinge pin 12 in the region of the clamping surface 32 in an angular range of> 180 °. By selecting suitable lever lengths of the lever arms 48, 50, the clamping force to be generated of the clamping element 24 can be adjusted in a simple manner. Thus, the contour element 40 can be contoured much stronger and steeper by the lever translation. Optionally, it is also conceivable to make the axis U of the transmission lever 36 adjustable in order to set the level of the holding torque. Due to the separation of functions, the contact surface between contour element 50 and transmission lever 36 can be substantially increased, whereby the hinge can be made smaller. The leverage can also produce much more striking haptic contours. In addition, this system is less sensitive to tolerances.

As can further be seen, in particular, from FIG

Hinge pin 12 enlarged in cross-section pin opening 16 on the upper side and on the underside - ie towards both opening sides of the pin opening 16 - closed by means of a respective lid 56. Each of the two covers 56 has one

Bearing opening 58, which determines the position of the central axis M of the hinge pin 12 relative to the body-side hinge part 10. The training of

Pintle opening 16 as a through hole has the advantage that the

Door holding device 22 along the hinge axis M can be inserted from above or below into the corresponding hinge part 10. This brings significant

Facilitates the installation with itself.

Another advantage of the continuous pin opening 16 is that it can have a uniform cross-section and therefore at least in one

Pintle opening 16 having hinge portion 60 of a semi-finished profile, in particular an extruded profile or a rolled section, may be formed with already inserted through hole. The space for the door holding device 22 may thus already be present in the semi-finished product of the profile, with possibly even minor, for example, machining reworking being required. This will be the

Production costs significantly reduced compared to today's concepts. Accordingly, a particularly advantageous embodiment provides that not only the hinge part 60, but the entire hinge part 10 from a

corresponding extruded or rolled section or the like can be produced.

Since the two covers 56 are formed separately, this has the further advantage that by this the position of the central axis M of the hinge relative to the respective

Hinge part 10 can be adjusted.

Finally, in particular from Fig. 1 nor a maintenance opening 62 can be seen. This can serve, for example, for lubrication or for adjusting the door holding device 22.

Claims

claims

Hinge for a door, flap or the like. Swiveling wing of a motor vehicle, with a body-side hinge part (10) and a door-side hinge part, which are pivotable about a hinge pin (12) relative to each other, and with an integrated door holding device (22) a holding element (24) arranged on the side of one hinge part (10), which interacts with a holding contour (46) on the side of the other hinge part, characterized in that

the holding element is designed as a clamping element (24) which cooperates with a clamping surface (32) of the hinge pin (12) and whose clamping force is adjustable via a transmission element (36) as a function of the holding contour (46).

2. Hinge according to claim 1,

characterized in that

the clamping element (24) surrounds the hinge pin (12) in an annular segment-shaped pipe section (26) in an angular range of> 180 °.

3. Hinge according to claim 1 or 2,

characterized in that

the retaining contour (46) is provided on the hinge pin (12).

4. Hinge according to claim 1 or 2,

characterized in that

the holding contour (46) is provided on a separate, non-rotatably connected to the hinge pin (12) contour element (40).

5. Hinge according to one of the preceding claims,

characterized in that

the transmission element between the holding contour (46) and the clamping element (24) is designed as a transmission lever (36).

6. Hinge according to claim 5,

characterized in that

one of the retaining contour (46) facing lever arm (50) of the transmission lever (36) is longer than the clamping element (24) facing the lever arm (48).

7. Hinge according to one of the preceding claims,

characterized in that

the clamping element (24) rotatably with the one hinge part (10) and the

Holding contour (46) rotatably connected to the other hinge part, in particular with the hinge pin (12) is connected.

8. Hinge according to one of the preceding claims,

characterized in that

a pin opening (16) of the hinge pin (12) receiving

corresponding hinge part (10) is formed as in cross-section relative to the hinge pin (12) enlarged passage opening which is closed to both opening sides by means of a respective lid (56).

9. Hinge according to claim 8,

characterized in that

both lids (56) are formed separately from the hinge pin (12).

10. Hinge according to claim 8 or 9,

characterized in that

the door holding device (22) at least substantially within the

Pintle opening (16) is arranged.