DE102020117775B3 - Actuator - Google Patents

Abstract

The invention relates to an actuating device for opening and/or closing a vehicle tailgate (1) as part of a vehicle body with a drive (2) and a force introduction (3), the drive (2) comprising the force introduction (3), the The drive (2) is arranged immovably on the vehicle body and the force introduction (3) can be mobilized by the drive (2), the force introduction (3) being connected to the vehicle tailgate (1), the drive (2) having a guide roller (4, 4.1, 4.2).

Description

Technical area

The invention relates to an actuating device for opening and / or closing a vehicle tailgate and / or a vehicle front flap and / or a vehicle door flap as part of a vehicle body with a drive according to claim 1.

State of the art

Such actuating devices in the form of a flap hinge are already known and used in a wide variety of forms and designs. For example, in the DE 10 2014 217 484 A1 discloses a bearing point for a tailgate or front flap bracket which, for example, in the area of the trunk lid or engine hood of motor vehicles, in which the tailgate moves around a pivot point. This is a single-joint or tubular hinge.

In another known hinge, the movement of the vehicle tailgate or a vehicle front flap or a vehicle door flap is predetermined, for example, by means of connected links in the form of four-jointed or multi-jointed joints. Such a hinge is for example in the DE 10 2008 060 990 A1 disclosed.

The disadvantage of a single-joint hinge is that the axis of rotation of the hinge must lie within the vehicle interior and this installation space therefore limits the freedom of vehicle design.

Another disadvantage of the single-joint hinge is that, for example, in the area of the hinge connection, a certain rigidity is required in the body. Therefore, the area under the parcel shelf, for example as a connection between the C-pillars of a sedan, is usually reinforced.

Another disadvantage of a single-joint hinge is that the through-loading width for the transport of objects is limited by the required pipe run to the axis of rotation. An additional disadvantage of such a single-joint hinge is that the trunk volume is reduced due to the necessary course of the bracket towards the axis of rotation.

A single-joint hinge also has the disadvantage that, due to its construction, only a rotary movement about the axis is possible. Other desired movements such as linear movements cannot be implemented.

Another disadvantage of the single-joint hinge is that the pivoting angle of the tailgate, for example, is limited by interfering contours, such as a rear window, and the required headroom cannot be achieved in this way.

• In der DE 10 2008 045 904 B3 Klappe offenbart, wobei die von einer Geschlossenstellung gegen die Schwerkraft in eine Offenstellung verbringbar ist, wobei mit der Klappe eine Zahnstange gekoppelt ist und ein Motor bereitgestellt ist, der mit einem Zahnrad gekoppelt ist, das mit der Zahnstange kämmt, wobei die Zahnstange in zumindest einer Stellung relativ zum Zahnrad auf zumindest zwei Arten verschwenkbar ist.

Against this background, the following publications must also be cited:

• In the DE 10 2008 045 904 B3 Flap disclosed, wherein the can be brought from a closed position against gravity into an open position, wherein a toothed rack is coupled to the flap and a motor is provided which is coupled to a toothed wheel that meshes with the toothed rack, the toothed rack in at least one Position relative to the gear is pivotable in at least two ways.

In the DE 10 2008 045 900 A1 A further flap is disclosed, a motor being provided to move this flap, the motor being coupled to a wheel and a body attached to the flap which is associated with the wheel so that frictional contact is established between the body and the wheel and when the wheel is rotated, the body with the flap is moved.

In the US 2005/0 017 539 A1 a further tailgate system with a directly driven rack is disclosed.

Finally there is that DE 11 2006 001 959 T5 cite, which discloses a hinge module with sliding and rotating movement.

Object of the invention

The object of the present invention is to overcome the disadvantages of the prior art. In particular, an actuating device is to be provided that provides the user with the simplest possible handling and the vehicle manufacturer with the simplest possible construction that ensures the greatest possible flexibility and is process-reliable.

Solution of the task

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

Advantageous refinements are described in the subclaims.

The invention relates to an actuating device for opening and / or closing a vehicle tailgate and / or a vehicle front flap and / or a vehicle door flap as part of a vehicle body with a drive and a force introduction, the drive comprising the force introduction, the drive being arranged immobile on the vehicle body and the drive mobilizing and guiding the force introduction, the force introduction with the vehicle tailgate and / or a vehicle front flap and / or a vehicle door flap is connected, the drive having a guide roller, the force introduction being an actuation profile which has a bend and a linear profile and the actuation profile is operatively connected to the drive or the vehicle body via a return spring, the drive acting in a first direction and the Return spring acts in an opposite second direction.

For the other versions, the vehicle tailgate, the vehicle front flap and the vehicle door flap are collectively referred to as a flap.

The advantage of the invention described here is that the movement of the flap can be defined more freely and is not tied to an axis.

If a rotary movement is integrated, this does not have to be arranged, as was previously the case, the axis of rotation of the hinge within the vehicle interior.

This in turn advantageously means that the design freedom of vehicle design in this area is becoming more diverse.

Advantageous side effects of the actuating device described here for the vehicle tailgate are, for example, that a reinforced parcel shelf is no longer required, which in turn results in a weight saving.

In addition, the loading width for the transport of objects, for example in the trunk, is increased. When the rear bench is folded down, there is more cargo space than a single-joint or tubular bracket hinge.

With the actuating device according to the invention, linear or curved movements can be realized. With a clever design, locking the flap can be thought of at several points. It may then be possible to dispense with the flap lock completely.

The end position of the flap is not limited by the limitation of the swivel angle or by an interfering contour such as a rear window.

• - Fahrzeug-Heckklappe oder Heckdeckel
• - Fahrzeug-Frontklappe oder Motorhaube
• - Serviceklappen
• - Tankverschlüsse
• - Fahrzeug-Türklappe
• - Kofferraumabdeckungen
• - Handschuhfach-Deckel
• - Armlehnen- und andere Staufächer
• - Ausfahrbare Spoiler, wie Heckflügel oder sonstige Aerodynamikbauteile
• - Ausfahrbahre Trittstufen oder Griffe an Kraftfahrzeugen, Bussen und Bahnen
• - Klapptische im Fahrzeug

Further areas of application in a vehicle for the actuating device described would be:

• - Vehicle tailgate or trunk lid
• - Vehicle front flap or bonnet
• - Service hatches
• - fuel caps
• - Vehicle door flap
• - trunk covers
• - Glove box lid
• - Armrest and other storage compartments
• - Extendable spoilers, such as rear wings or other aerodynamic components
• - Extendable steps or handles on vehicles, buses and trains
• - Folding tables in the vehicle

The actuation device is intended to replace the usual hinges in the vehicle. A kind of link guide is to be used in the form of the actuation profile. The actuation profile can be a somewhat open profile, such as a T-profile, a double-T-profile, or a U-profile. However, it can also be a closed profile, such as a rectangular profile or a tubular profile.

The connection for the flap to be moved, such as a tailgate connection, is located on this actuation profile.

The shape of the guide roller enables linear, rotary or freely configurable movements of the flap. The movement can be supported or driven by springs. This can be tension or compression springs, spiral springs, torsion springs, constant force, elastomer or gas springs. In principle, purely manual use can also be provided.

By using the motor drive, the flap to be moved can be opened or closed. An open actuation profile can be used to lay electrical cables or washing water lines and to close them with a suitable cover.

The drive mobilizes and guides the introduction of force. The introduction of force is an actuation profile. The actuation profile can have a bend and a linear profile. It is through the interaction of the linear profile and the bend to make a reversible non-positive and / or positive locking connection between the flap and the vehicle body. Due to the interplay of the linear profile and the bend It is basically possible for hooks to be present on the flap, for example, which can be moved into and out of openings in the vehicle body. As a result, in turn, the non-positive and / or positive locking connection can be achieved. This is also reversible, i.e. conceivable as an opening movement in the reverse order. In this exemplary embodiment, under certain circumstances, a flap lock could be completely omitted because, for example, the hooks of the flap could be wedged in the openings of the body by the corresponding design of the actuation profile.

In one embodiment, only a single guide roller is used in combination with a counter-bearing roller, the actuation profile being able to be mobilized guided between the one guide roller and the counter-bearing roller.

In another exemplary embodiment, the drive has exactly two guide rollers, the actuation profile being able to be mobilized in a guided manner between the two guide rollers.

In a further exemplary embodiment, the drive has three guide rollers, the actuation profile being able to be mobilized guided through the common center point of the three guide rollers. This results in a particular stability. The guide role has a frictional effect on the actuation profile. For example, through a toothing, a friction roller or a pull rope.

Furthermore, at least one of the guide rollers or the counter-bearing roller can be resiliently mounted on the actuation profile. This enables the guide rollers to run around contours such as bends in a driving manner.

Furthermore, the actuation profile is operatively connected to the drive or the vehicle body via a return spring, the drive acting in a first direction and the return spring acting in an opposite, second direction. The return spring is used to return the actuation profile, for example, from an end position to the starting position. For this purpose, the return spring is connected at one end to the actuation profile and at the other end to the vehicle body.

Alternatively, the drive can also have a spiral spring, the spiral spring being arranged to support the drive. For this purpose, it can be connected to the drive at one of its ends and to a guide roller or an additional guide roller, for example, at its other end. It has a spring-relieving effect in the respective drive direction of the drive. As a result, the spiral spring interacts with an additional guide roller, for example. However, it is also conceivable that the spiral spring can also be drive-connected to the guide roller. As an alternative to the spiral spring, a constant force spring can also be provided to support the drive. The constant force spring would have the advantage here that the drive would be subjected to a consistently high load when it was opened and would continuously reverse when it closed.

The drive can be an electric drive and / or a belt drive or another suitable type of drive. The actuation profile can be, for example, a U-profile, a tubular profile, a T-profile or a double-T-profile.

Figure list

• 1 eine Seitenansicht einer erfindungsgemäßen Betätigungsvorrichtung;
• 2 Schematischer Ablauf der Öffnung einer Fahrzeug-Heckklappe mit einer erfindungsgemäßen Betätigungsvorrichtung;
• 3 eine Detailansicht der 1;
• 4 eine Detailansicht der 3;
• 5 eine Detailansicht der 4;
• 6 eine Ansicht für einen erfindungsgemäßen Bandantrieb;
• 7 eine Detailansicht der 2;
• 8 eine geschnittene Ansicht der 7.

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

• 1 a side view of an actuator according to the invention;
• 2 Schematic sequence of opening a vehicle tailgate with an actuating device according to the invention;
• 3 a detailed view of the 1 ;
• 4th a detailed view of the 3 ;
• 5 a detailed view of the 4th ;
• 6th a view for a tape drive according to the invention;
• 7th a detailed view of the 2 ;
• 8th a sectioned view of the 7th .

Embodiment

In 1 is initially a force introduction 3 shown. The introduction of force 3 is in this embodiment an actuation profile 5 shown as a U-profile that results from a bend 6th and a linear profile 7th consists. In the U-profile, for example, two guide rollers run in a stabilizing and holding manner 4th , 4.1 driven by a drive 2 are driven. Here is the introduction of force 3 an actuation profile 5 .

The actuation profile has one end 5 a tailgate connection 16 having. To the tailgate connection 16 is one in the 2 Vehicle tailgate shown 1 attachable. At the other end, the actuation profile 5 a spring anchor 13th on.

On the spring anchor 13th is a return spring 9 via a spring holder 14th attached. The return spring 9 is one end with the pen holder 14th connected and forms a body coupling at the other end 15th out. The body coupling 15th is on a defined position connected to the body of the vehicle to the action of the return spring 9 to enable.

Also is a drive 2 shown. The drive 2 is in this embodiment an electric drive. In another exemplary embodiment, instead of or in addition to the electric drive, a belt drive can also be provided.

The drive 2 includes the introduction of force 3 , the drive 2 is arranged immobile on the vehicle body and the introduction of force 3 from the drive 2 can be mobilized. This mobilization is indicated by two directional arrows 10 , 11th indicated what the tailgate connection 16 through the drive 2 can be mobilized opening in one direction and closing in the opposite direction. Here is the introduction of force 3 with the vehicle tailgate 1 connected, the drive 2 the two leadership roles 4th , 4.1 having.

The actuation profile 5 is with the drive 2 and about the return spring 9 operatively connected to the vehicle body. The drive 2 acts in the first direction 10 , the return spring 9 in the opposite second direction 11th works. In another embodiment, the second could be opposite direction 11th also alone or only with a supporting effect of the return spring 9 through the drive 2 be approached.

The drive 2 mobilizes and guides the introduction of force 3 . This is done here by the drive 2 who has the two leadership roles 4th , 4.1 drives, which in turn in the U-profile of the force introduction 3 seated the introduction of force 3 mobilizes and leads. Here is the drive 2 permanently attached to the vehicle body and mobilizes the introduction of force 3 in such a way that the introduction of force 3 through the drive 2 in the first direction 10 and possibly in the second opposite direction 11th runs.

In the 2 a schematic sequence of opening a vehicle tailgate is shown. The drive 2 has three leading roles here 4th , 4.1 , 4.2 on, the actuation profile 5 through a common center of the three leadership roles 4th , 4.1 , 4.2 can be mobilized in a guided manner.

In 2a the starting position is shown. Here is the trunk lid 1 closed and the drive 2 , which here by the three leadership roles 4th , 4.1 , 4.2 are indicated. There is also an actuation profile 5 shown in the form of a tubular profile. The vehicle tailgate 1 is in the starting position by the three guide rollers 4th , 4.1 , 4.2 . The movement of the vehicle tailgate 1 starts with a linear excavation.

In the 2 B a middle position is shown. There is the trunk lid 1 partially but not fully open. The trunk lid is in the middle position 1 somewhat spaced from the guide rollers 4th , 4.1 , 4.2 , because the drive, not shown 2 the three leadership roles 4th , 4.1 , 4.2 has activated rotating and the actuation profile 5 through the common center of the three leadership roles 4th , 4.1 , 4.2 guided mobilizable runs through. Then a swiveling or rotating movement can take place.

In 2c is the end position of the opening of the vehicle tailgate 1 shown. There is the actuation profile 5 completely through the three guide rollers 4th , 4.1 , 4.2 guided through it, mobilizable so that the three guide roles 4th , 4.1 , 4.2 at the end of the actuation profile 5 condition. To the desired height of the vehicle tailgate 1 A linear movement can now be reached again.

Interfering contours can be avoided better by the alternating linear and pivoting movements than with pivoting movements around a fixed pivot point.

In 3 is an enlarged portion of the 2 shown. To the 1 The statements made are referenced at this point. To avoid repetition, they also apply to the 3 . In addition, the 3 a coil spring 12th shown. The drive 2 consequently has a spiral spring 12th on, with the spiral spring 12th Is arranged to support the drive.

In the 4th is the spiral spring 12th without the drive 2 shown again. The spiral spring 12th is in operative connection with two additional guide rollers 19th , 19.1 , with the spiral spring 12th one end of the drive 2 is hooked and on the other hand with at least one of the additional leadership roles 19th , 19.1 . The additional leadership roles 19th , 19.1 are inside in the U-profile of the actuation profile 5 arranged. They have a smaller scope than the two guide rollers 4th , 4.1 on. The additional leadership roles 19th , 19.1 are spring-loaded so that bends can be negotiated.

In the 5 is the view of 4th without the coil spring 12th shown so that the two additional guide rollers 19th , 19.1 are easier to see.

In 6th is a drive 2 shown in the form of a belt drive. The belt drive consists of two pre-tensioned, play-free drive belts 17th , 17.1 which are suitable are the additional guide rollers 19th , 19.1 and / or the guide roles 4th , 4.1 , 4.2 to drive.

7th shows again another embodiment of the drive 2 , in this embodiment two guide rollers 4th , 4.1 and a counter bearing roller 8th is present, the actuation profile 5 between the two guide rollers 4th , 4.1 and the counter bearing roller 8th can be mobilized in a guided manner.

At least one of the guide roles can be used 4th , 4.1 and / or the counter bearing roller 8th resilient on the actuation profile 5 be stored.

8th FIG. 11 shows a sectional view of FIG 7th . There you can see that the two guide roles 4th , 4.1 and the counter bearing roller 8th the actuation profile 5 in the form of a tubular profile at least partially enclose in order to guide and mobilize the actuation profile 5 enables. For this purpose, they have an hourglass shape in a sectional view.

List of reference symbols

1

Vehicle tailgate

2

drive

3

Force introduction

4, 4.1, 4.2

Leadership role

5

Actuation profile

6th

Bend

7th

Linear profile

8th

Counter bearing roller

9

Return spring

10

First direction

11th

Second direction

12th

Coil spring

13th

Spring anchor

14th

Spring retainer

15th

Body coupling

16

Tailgate connection

17, 17.1

Drive belt

19, 19.1

Additional leadership role

20th

Claims (10)

Actuating device for opening and / or closing a vehicle tailgate (1) and / or a vehicle front flap and / or a vehicle door flap as part of a vehicle body with a drive (2) and a force introduction (3), the drive (2 ) comprises the introduction of force (3), the drive (2) being arranged immobile on the vehicle body and the drive (2) mobilizing and guiding the introduction of force (3), the introduction of force (3) with the vehicle tailgate (1) and / or a vehicle front flap and / or a vehicle door flap, the drive (2) having a guide roller (4, 4.1, 4.2), the force introduction (3) being an actuation profile (5) which has a bend ( 6) and a linear profile (7) and wherein the actuating profile (5) is operatively connected to the drive (2) or the vehicle body via a return spring (9), the drive (2) acting in a first direction (10) and the Return spring (9) in an opposite direction The second direction (11) is effective. Actuator according to Claim 1 , characterized in that the linear profile (7) and / or the bend (6) enters into a reversible non-positive and / or positive locking connection between the flap and the vehicle body. Actuator according to Claim 1 , characterized in that the drive (2) has a guide roller (4, 4.1, 4.2) and a counter-bearing roller (8), the actuating profile (5) being guided between the guide roller (4, 4.1, 4.2) and the counter-bearing roller (8) can be mobilized. Actuator according to Claim 3 , characterized in that the drive (2) has two guide rollers (4, 4.1, 4.2), the actuation profile (5) being able to be mobilized in a guided manner between the two guide rollers (4, 4.1, 4.2). Actuating device according to one of the Claim 3 or 4th , characterized in that the drive (2) has three guide rollers (4, 4.1, 4.2), the actuation profile (5) being able to be mobilized guided through the common center point of the three guide rollers (4, 4.1, 4.2). Actuating device according to one of the Claims 3 until 5 , characterized in that the guide roller (4, 4.1, 4.2) is frictional by a toothing, a friction roller or a pull rope to the actuation profile (5). Actuating device according to one of the Claims 3 until 6th , characterized in that at least one of the guide rollers (4, 4.1, 4.2) or the counter-bearing roller (8) is resiliently mounted on the actuating profile (5). Actuating device according to one of the preceding claims, characterized in that the drive (2) has a spiral spring (12) or a constant force spring, the spiral spring (12) or constant force spring being arranged to support the drive. Actuator according to Claim 8 , characterized in that the spiral spring (12) cooperates with an additional guide roller (19, 19.1). Actuating device according to one of the preceding claims, characterized in that the actuating profile (5) is a U-profile, tubular profile or a double-T-profile.

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