EP3891323B1 - Bearing point for a tailgate bracket or a front flap bracket - Google Patents

Description

technical field

The invention relates to a bearing point for a tailgate or front flap bracket according to the preamble of claim 1.

State of the art

Such bearing points for a tailgate or front flap bracket are already known and used in a variety of forms and configurations. For example, in the DE 10 2010 032 459 A1 discloses an arrangement with a flap that is held by a bracket hinge arm that is articulated on a bearing block, a spring that at least supports pivoting the flap open, and a detent that interacts with a latching area of the bracket hinge arm and that the flap in its maximum Open position releasably locked, characterized in that the detent is a receptacle into which the detent area of the bracket hinge arm pivots when the maximum open position of the flap is reached, wherein the Recording is arranged outside of the spring and / or receives the latching area on at least three sides.

Next will be on the EP 2 592 207 A2 referred. A hinge is disclosed there, which generates a defined frictional resistance, which is intended to improve the handling of the hinge.

In addition, on the US 8,732,906 B1 pointed out, which shows a hinge in which a first hinge part and a second hinge part are penetrated by a hinge bolt, the hinge bolt being connected to the first hinge in a rotationally fixed manner and the second hinge being arranged to rotate freely against the first hinge, and the entire device consisting of one electrically conductive material.

In addition, on the WO 95/16094 A referenced, which is arranged a contact disc between the first hinge part and the second hinge part on the hinge pin.

The DE 199 60 736 C1 describes a hinge made of electrically conductive material, consisting of two hinge parts which are pivotally connected to one another by means of a hinge pin, the hinge pin being secured against rotation in one hinge part and mounted with a loose fit in the other hinge part. The parts that are in contact with one another and are moved relative to one another during a pivoting movement are insulated from one another in the areas that are in contact with one another by an electrically non-conductive coating, the coating being interrupted at least at one point. The point of interruption is surrounded by coating material and represents an electrically conductive contact point between the parts that are in contact.

Last will be on the EP 3 498 956 A1 referred, which a hinge for a motor vehicle door on a motor vehicle with a first hinge half and a second hinge half, the first hinge half being non-rotatably connected to a bolt or formed in one piece with the bolt and the second hinge half having a bushing made of plastic, the bushing being pivotably mounted on the bolt and a conductive element being arranged between the bushing and the bolt.

So-called cathodic dip painting (KTL) or anodic dip painting (ATL) is used to enable the individual parts to be painted using the electrophoretic deposition process. Cathodic dip painting, also known as "cataphoresis", is an electrochemical process in which the workpiece is coated in a dip bath.

In order to ensure that the bodywork can be painted in the KTL bath, there must be a current flow from a tailgate connection to a bodywork connection. In the prior art, conductivity is achieved, for example, by means of magnetic tapes, which ensure the current flow between the parts in question. This is time-consuming and cost-intensive since, as a rule, corresponding bores are required on the individual parts for the screwed attachment of the magnetic tapes between the individual parts.

object of the invention

The object of the present invention is to overcome the disadvantages of the prior art. In particular, a bearing point for a tailgate or bonnet bracket is to be provided in which the current flow between the individual parts of the tailgate or bonnet bracket can be produced and guaranteed at low cost.

solution of the task

The features according to claim 1 lead to the solution of the problem.

Advantageous configurations are described in the dependent claims.

The bearing point according to the invention for a tailgate or front flap bracket consists primarily of three main parts. This is the tailgate or front lid bracket, the tailgate or front lid bracket having a body connection at one end and a tailgate connection at the other end. The parts are manufactured individually and then connected to each other. The material of all parts is a new metal material that conducts current flow.

This is also necessary because the ability to paint the individual parts through the electrophoretic deposition process depends on ensuring conductivity. So-called cathodic dip painting (KTL) or anodic dip painting (ATL) is used for this. Cathodic dip painting, also known as "cataphoresis", is an electrochemical process in which the workpiece is coated in a dip bath.

In order to ensure that the bodywork can be painted in the KTL bath, there must be a current flow from the tailgate connection to the bodywork connection.

The body connection arranged at one end on the tailgate or front lid bracket serves to connect the tailgate or front lid bracket to the rest of the body. The tailgate connection arranged at the other end of the tailgate or front lid bracket serves to connect the tailgate or front lid bracket to a tailgate. Such a rear hatch or front hatch bar is preferably used in limousines or notchback vehicles. According to the invention, a contact disk is arranged between the body connection and the tailgate or front lid bracket. The contact disk is primarily characterized in that it is as flat as possible and essentially has a rotation-friendly, preferably round recess in the middle. It also has a preferably round outer circumference. This has the advantage that, on the one hand, it can be drawn onto a cylindrically designed axis and, on the other hand, it does not offer any points of attack when the individual parts rotate and does not impair the functionality of the overall construction.

Thus, the contact washer may be a spring ring, corrugated washer, split ring, washer, Belleville washer, or other circular or pitch circular member.

A bolt is also provided, which mounts the tailgate or front lid bracket in a holding manner to the body connection. In this case, the bolt preferably engages through two openings in the body connection and through a passage in the tailgate or front lid bracket. The bolt is at least partially encompassed by an axle. The axis forms the passage.

The axle in turn has a one-piece collar at one end. The collar serves as a stop surface for the axle to the tailgate or front flap bracket. In this way, the rear hatch or front hatch bracket is held pivotably in the area of the body connection with simply defined friction. At the other end, the axis has an additional turntable. The turntable can also be formed in one piece with the axle, similar to the collar. However, the two-piece design has the advantage that the turntable can move freely when the axis is pivoted, without twisting occurring.

In the working position, the axle is partially or completely encompassed by a body sleeve, the body sleeve being part of the body connection. In the context of this invention, in the working position means when the individual main parts, such as the tailgate bracket, body connection and tailgate connection, are functionally assembled and can be used.

The contact disc is arranged at least partially in contact between the body sleeve and the collar. In this arrangement, the functionality of the current flow is ensured in a special way with a practically insignificant influence on the friction behavior when the tailgate bracket is pivoted into the open position or closed position of the tailgate.

An insulator is arranged between the body sleeve and the axle. The insulator is a bearing bush that is not electrically conductive.

The contact disc, the tailgate or front lid bracket, the body connection and the tailgate connection are made of a metal material that conducts current.

The bolt at one end has a bolt head and at the other end the bolt is held in a bolt bearing of the tailgate or front lid bracket. The bolt also has a taper at the other end, which is intended to make it easier to install the bolt. The pin bearing, in turn, is intended to ensure the functionality of the pin as part of a rotatable bearing. On the one hand, the bolt head represents the end of the rotatable bearing.

character description

Figur 1

eine seitliche Ansicht einer erfindungsgemäßen Lagerstelle;

Figur 2

eine geschnittene Draufsicht auf die Figur 1;

Figur 3

eine vergrößerte Teilansicht der Figur 2.

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

figure 1

a side view of a bearing according to the invention;

figure 2

a sectional plan view of the figure 1 ;

figure 3

an enlarged partial view of the figure 2 .

example

In figure 1 a bearing point is shown. The bearing point consists primarily of a tailgate or front flap bracket 3, the tailgate or front flap bracket 3 having a body connection 1 at one end and a tailgate connection 2 at the other end.

figure 1 the closed position of a tailgate, not shown, which is attached to the tailgate connection 2 is shown. A directional arrow 4 shows the pivoting movement of the tailgate hill from the closed position shown to an open position of the tailgate.

Finally, a cutting line AA is shown. In the figure 2 a plan view of section line AA is shown. The body connection 1, the tailgate bracket 3 and the tailgate connection 2 can also be seen there. A bolt 5 is also shown, which has a bolt head 11 at one end.

The bolt 5 is used to support the tailgate or front lid bracket 3 to the body connection 1.

In figure 2 It is shown how a contact disk 7 is arranged between the body connection 1 and the rear hatch or front hatch bracket 3 .

The contact disk 7 can be a spring ring, a corrugated disk, a slotted ring, an intermediate disk or another circular element or partial circular element. The contact disk 7 is arranged between the collar 13 and the body sleeve 8 , the collar 13 in turn being arranged on the side of the bolt 5 which also includes the bolt head 11 . This ensures a particularly firm hold and this in turn ensures the current flow in a particularly good manner.

In addition, a circular area B is shown, which in the figure 3 is shown enlarged.

The bolt 5 is encompassed by an axle 6 . The axle 6 has a one-piece collar 13 at one end and an additional rotary disc 10 at the other end. The axis 6 is essentially a hollow cylinder at one end of which the collar 13 is arranged at an essentially right angle away from the hollow cylinder.

In the working position, the axle 6 is partially or completely encompassed by a body sleeve 8 , the body sleeve 8 being part of the body connection 1 . The interaction of the body sleeve 8 and the axle 6 and the bolt 5 leads to an easily definable, pivotable support for such a bearing point.

The contact disk 7 is arranged at least partially in contact between the body sleeve 8 and the collar 13 . It can also be seen in this context how a current flow S runs from the body sleeve 8 of the body connection 1 to the axis 6 and from the axis 6 to the bolt 5 and then to the tailgate or front lid bracket 3 or, not shown here, from the axis 6 the tailgate or bonnet bar 3 runs. Finally, the axle 6 has a passage 14 into which the bolt 5 is inserted in the work alga.

Furthermore, an insulator 9 is arranged between the body sleeve 8 and the axle 6 .

The contact disk 7, the tailgate or front lid bracket 3, the bodywork connection 1 and the tailgate connection 2 are made of an electrically conductive metallic material.

The bolt 5 has a bolt head 11 at one end. At the other end, the bolt 5 is held in a bolt bearing 12 of the rear hatch or front hatch bracket 3 . <b>Reference List</b> 1 body connection 2 tailgate connection 3 tailgate or bonnet bar 4 directional arrow 5 bolt 6 axis 7 contact washer 8th body sleeve 9 insulator 10 turntable 11 bolt head 12 pin bearing 13 collar 14 passage A cutting line B cutout S current flow

Claims (3)

1. Bearing point for a tailgate or front flap bracket (3), wherein the tailgate or front flap bracket (3) has a body connection (1) at one end and a tailgate connection (2) at the other end, wherein a contact disc (7) is arranged between the body connection (1) and the tailgate or front flap bracket (3), wherein a bolt (5) supports the tailgate or front flap bracket (3) in a retaining manner with respect to the body connection (1), wherein the bolt (5) is at least partially surrounded by an axle (6), wherein the axle (6) has, at one end, an integrally formed collar (13) and, at the other end, an additional rotary disc (10), wherein the axle (6) is partially or completely surrounded by a body sleeve (8) in the working position, wherein the body sleeve (8) is part of the body connection (1), wherein the contact disc (7) is arranged between the body sleeve (8) and the collar (13) at least partially in contact, wherein the electrical insulator (9) is arranged between the body sleeve (8) and the axle (6), wherein the contact disc (7) of the tailgate or front flap bracket (3), the body connection (1) and the tailgate connection (2) consist of a current-conducting metallic material.
2. Bearing point according to claim 1, wherein the contact disc (7) is a spring washer, a corrugated disc, a slotted ring, an intermediate disc, a disc spring or another circular element or partial circular element.
3. Bearing point according to claim 1 or 2, wherein the bolt (5) has a bolt head (11) at one end and is held in a bolt bearing (12) of the tailgate or front flap bracket (3) at the other end.

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