EP3696355A1 - Device for partial opening of a motor vehicle door and corresponding motor vehicle door - Google Patents

Abstract

The invention relates to a positioning device for a motor vehicle door which is equipped with an electric motor drive (7, 8, 9, 10) and with an actuating element (11) acted upon by the drive (7, 8, 9, 10). The adjusting element (11) is designed as a cam disk (11) which can be rotated about an axis (12). The cam disc (11) works directly or indirectly on a door leaf (1) to implement an actuating movement between a basic position and an actuating position and possibly vice versa. According to the invention, the cam disk (11) is rotatably mounted with its axis (12) on or in a motor vehicle lock (2).

Description

The invention relates to a positioning device for a motor vehicle door, with an electric motor drive, and with an actuating element acted upon by the drive, wherein the actuating element is designed as a cam disc rotatable about an axis, which directly or indirectly on a door leaf and / or a body to implement a Adjustment movement between a basic position and an adjustment position and possibly vice versa works.

The adjusting element thus performs a movement between its basic position and its adjusting position and vice versa or back. For this purpose, the electromotive drive drives the actuating element and ensures that it changes from its basic position to the actuating position and, in doing so, raises the door leaf directly or indirectly. For example, in the case of a motor vehicle side door, a pivoting movement through a specific angle with respect to the body or motor vehicle body corresponds to this. In principle, the installation device can of course also be used with a tailgate, a front hood or even a tank flap.

Positioning devices for motor vehicle doors are often implemented in connection with an electric opening drive for an associated motor vehicle lock. As a result, an otherwise obligatory outside door handle can be dispensed with. For example, the motor vehicle door in question or the motor vehicle lock implemented in this context and in particular the motor vehicle door lock can be opened with the aid of the electrical opening drive. This is usually done remotely or in connection with keyless entry to the vehicle.

Since the associated motor vehicle door is not or not sufficiently set up during such an electrical opening process due to any restoring forces of the associated door rubber seals so that a user can reach behind a gap between the motor vehicle door and the associated body, the setting up device provides an additional setting up movement.

This is completed from a basic position to the set position, so that in this set position there is typically a door gap between the motor vehicle door in question and the body, which the user can grip from behind in order to be able to open the motor vehicle door in question - even without an outside door handle. In this context, the electromotive drive ensures the adjusting movement of the adjusting element from its basic position into the adjusting position. The reverse movement can also be realized and implemented with the aid of the electric motor drive or also through built-up spring forces. This has basically proven its worth.

In the generic prior art according to DE 10 2015 103 830 A1 an actuator designed as a linear control element is provided for this purpose. The actuator ensures that a door leaf is opened in a gap as part of the motor vehicle door, while a drive also ensures that the door leaf is completely opened / closed with respect to the motor vehicle body. For this purpose, an adjustable stop is provided on the door leaf, which has two drive disks or cam disks which can be moved relative to one another.

The drive pulleys or the stop act on an adjusting rod as part of a locking member. Since, in addition, an electric motor drive works via a Bowden cable and an additional connection piece on the one or both drive pulleys, a relatively complex structure is implemented. The invention aims to provide a remedy here overall.

The invention is based on the technical problem of further developing such a positioning device for a motor vehicle door in such a way that the structural effort is reduced and a functionally appropriate simple construction is made available.

To solve this technical problem, a generic positioning device for a motor vehicle door is characterized within the scope of the invention in that the cam disk is rotatably mounted with its axis on or in a motor vehicle lock, for example in or on the door leaf.

This means that the cam disk initially uses a motor vehicle lock that is already present for the rotatable mounting of its axis. The motor vehicle lock, for its part, is mostly stored in or on the door leaf that is to be set up with the help of the setting-up device opposite the body. In principle, however, the motor vehicle lock can also be attached in or on a body, for example in the interior of a door frame that accommodates the door leaf. To this end, the cam disk is mounted in detail in the interior of a motor vehicle lock housing or on an outer surface of the motor vehicle lock housing. As a rule, mounting the cam disk inside or outside on a motor vehicle lock case as a component of the motor vehicle lock housing has proven to be particularly favorable. In fact, the motor vehicle lock housing is typically composed of said motor vehicle lock case and a motor vehicle lock housing or cover which seals the motor vehicle lock case and the components stored thereon or therein.

While the motor vehicle lock case is typically made of solid metal and in particular steel, the motor vehicle lock housing or cover is usually made of plastic. In any case, it has proven useful if the cam is mounted on the inside or outside of said massive motor vehicle lock case, so that in this way the necessary Transfer the erection forces to the door leaf and this can be erected as intended.

According to a further advantageous embodiment, the drive for the cam is designed as a lock drive or motor vehicle lock drive. That is, the drive for the cam takes on a double or even multiple function within the scope of the invention. First of all, the drive ensures that the cam raises the door leaf in the desired manner. At the same time, the drive is the lock drive or motor vehicle lock drive of the associated motor vehicle lock. As a result, the lock drive takes on additional drive functions inside the motor vehicle lock. In fact, the lock drive can advantageously be designed as an opening drive for electrical opening, as a locking drive in connection with a central locking system, as a closing drive for implementing a closing aid, as an anti-theft drive in connection with an anti-theft device, as a child-proof drive individually or possibly in combination. That is, the lock drive can perform some of the functions mentioned or several of the functions concerned and at the same time, as a drive for the cam disk, ensures that the door leaf, as part of the motor vehicle door, performs the desired adjusting movements relative to the body.

In this way, there is no need for an additional drive for the positioning device; rather, the invention relies on an already existing lock drive as a component of the motor vehicle lock. This double or multiple function of the drive or lock drive can advantageously be implemented and implemented because the lock functions mentioned in this context, such as electrical opening, central locking, pulling, theft protection or child safety device, on the one hand, are connected to a locking of the motor vehicle lock or a locking state ( Central locking, closing, anti-theft device and child safety device), which does not require any positioning movement anyway is or on the other hand upstream of the erecting movement, as is the case for electrical opening. That is, the drive of the positioning device, which is advantageously designed as a lock drive, can assume the double or multiple function described, because functional collisions or overlaps of the desired positioning movement with lock functions do not and cannot occur in normal operation. As a result, the design effort can be reduced and ultimately costs are also saved because the drive takes over and fulfills the double or multiple function as a lock drive and at the same time as a drive for the installation device.

In addition, it has proven itself when the cam disc is subjected to force in the direction of its home position. In this case, the electromotive drive to act on the actuating element or the cam disc works against the corresponding force during its transition from the basic position to the actuating position. The application of force then ensures the transition from the set position to the basic position, so that the electromotive drive is not required for this. In detail, a spring and / or a magnet can advantageously be provided for applying force to the cam disk. The spring and / or the magnet can be configured to be deactivated. In the case of a spring, when the cam disc changes from the basic position to the set position, the spring is tensioned with the aid of the electric motor drive. As soon as the adjusting element or the cam disk is to be transferred from its adjusting position back into the basic position, it is only necessary for the spring to change from its tensioned to the relaxed position for this purpose. The electric motor drive may also be moved or reset by the spring.

Alternatively, the application of force can also be implemented and implemented with a magnet. In this case it is conceivable that the cam disk itself is designed to be magnetic or carries a magnet. As soon as the electromotive drive moves the cam from its basic position to the set position, the magnet or cam as a whole becomes by an additionally provided magnet or at a distance from the body, which is usually made of steel. As soon as the adjusting element or the cam disk has reached its setting position, the magnet on the cam disk or the cam disk itself ensures that the positioning device is "pulled back" into its basic position by magnetic forces.

Of course, in this context the application of force can be configured to be deactivatable. This specifically applies to the spring and / or the magnet. That is, the spring or the magnet can be deactivated when the electromotive drive ensures that the cam changes from its basic position to the set position. Only when the cam has reached its set position is the spring or the magnet activated and can then ensure the desired return movement of the cam starting from the set position into the basic position when the electric motor drive is not applied. In the simplest case, an activatable and deactivatable magnet can be implemented by an electromagnet, which is de-energized for deactivation and is energized for activation and thus builds up the desired magnetic restoring forces in order to move the cam disc and therefore the installation device as a whole from the basic position to the set position. Of course, the return movement can also be made and implemented with the aid of the electric motor drive.

The application of force to the cam in the direction of its basic position and consequently the resetting of the cam, for example with the aid of the spring and / or the magnet, has the advantage that in this case the electromotive drive does not have to be reversed or has to be designed to be reversible works or can work unidirectionally. This is often the case for individual lock drives anyway, so that the application of force to the cam disc can be implemented particularly advantageously when the drive as part of the positioning device also functions as a lock drive for the motor vehicle lock.

In principle, it is also possible for the door leaf to be held in its closed position with the aid of a magnet, the magnet in question being deactivated when, for example, an electrical opening process of the motor vehicle lock is initiated. As an alternative or in addition, the holding forces built up by the said magnet can also be overcome by the positioning device according to the invention or the cam disk. In addition, the magnet in question can also be deactivated, in which case an electromagnet again - as already described - has proven to be particularly favorable.

The cam as part of the positioning device according to the invention works either indirectly or directly on the door leaf. In the case of a direct interaction, it has proven useful if the cam is made of plastic, for example, or at least has a plastic coating, in order to avoid damage to the door leaf or the body during an erecting movement. If the cam ensures an indirect opening movement of the door leaf, the cam can in turn work on a transmission element. The transmission element can be received or stored on the door leaf itself. A mounting of the transmission element on the body, for example in the area of a door frame, is just as conceivable as mounting in or on the motor vehicle lock or in or on the motor vehicle lock housing. Finally, the transmission element in question can also be stored in or on the lock holder itself.

In addition to acting on the door leaf or the body by the cam to implement the erecting movement, it is also conceivable within the scope of the invention for the cam to act on the aforementioned lock holder on the door leaf of the body. In this case, the cam disk works on the metallic lock holder, so that in such a variant the cam disk must not be made of plastic or with a plastic coating. In this case For example, the motor vehicle lock can be arranged or placed in a door frame as part of the body while the door leaf is equipped with the lock holder in question.

However, the procedure is usually such that the lock holder is located on the door frame and consequently on the body and interacts with the motor vehicle lock arranged in or on the door leaf. In this case, the positioning device according to the invention is also arranged in or on the door leaf. The cam is usually found inside the motor vehicle lock housing or on its outer surface. The invention also relates to a motor vehicle door which is equipped with a door leaf and the positioning device according to the invention.

As a result, a stand-up device and a motor vehicle door correspondingly equipped with it are made available which are particularly simple in terms of construction because other compulsory components are included in the implementation of the stand-up device. This is because the cam disk as part of the positioning device is rotatably mounted on or in the motor vehicle lock, which in turn is generally arranged in or on the door leaf. In principle, the motor vehicle lock can also be arranged inside the body, for example in the area of the previously mentioned door frame. This is where the main advantages can be seen.

Fig. 1

die erfindungsgemäße Aufstellvorrichtung sowie eine hiermit ausgerüstete Kraftfahrzeugtür in einer perspektivischen Übersicht,

Fig. 2

eine Detailansicht des Gegenstandes nach der Fig. 1 im Bereich des Kraftfahrzeugschlosses und

Fig. 3

eine weitere detaillierte Darstellung des Gegenstandes nach den Figuren 1 und 2.

The invention is explained in more detail below with the aid of a drawing showing only one exemplary embodiment; show it:

Fig. 1

the installation device according to the invention and a motor vehicle door equipped with it in a perspective overview,

Fig. 2

a detailed view of the item after Fig. 1 in the field of motor vehicle locks and

Fig. 3

a further detailed representation of the subject after the Figures 1 and 2 .

In the figures, a positioning device for a motor vehicle door is shown. The motor vehicle door is a motor vehicle side door. In principle, however, a tailgate, a front hood or even a tank flap can also be implemented and designed accordingly at this point. In any case, the motor vehicle door has a door leaf 1 and a motor vehicle lock 2 arranged in the door leaf 1, from which one can see in the Fig. 1 only a rotary latch 3 with the associated pawl 4 recognizes a locking mechanism 3, 4. The locking mechanism 3, 4 interacts in a known manner with a lock holder 5, which is connected to a body that is not expressly shown and, for example, in the Fig. 3 is indicated.

The motor vehicle lock 2 can be opened from the inside with an inside door handle T, for example. In contrast, the motor vehicle door is opened from the outside with the aid of a Fig. 1 indicated remote control 6 or by a "keyless entry" access. After actuating the remote control 6, the motor vehicle lock 2 in the closed position is opened electrically. For this purpose a particular one is in the Fig. 3 The electric motor drive 7, 8, 9, 10 to be recognized is provided, which in the example and not by way of limitation functions as an electric opening drive for the locking mechanism 3, 4. That is, with the help of the electric motor drive or opening drive 7, 8, 9, 10, the pawl 4 is lifted from its engagement with the rotary latch 3 by an electric motor, so that, as a result, the door leaf 1 of the motor vehicle door is slightly raised by restoring forces built up by a rubber door seal .

In this context, the gap observed in this way between the door leaf 1 and the body, not shown, is usually not sufficient for an operator to reach behind the door leaf 1 in the gap and swing it open. For this purpose there is also an installation device realized according to the invention for the motor vehicle door. The erecting device has an adjusting element 11 which, according to the exemplary embodiment, is designed as a cam disk 11 rotatable about an axis 12. It can be seen that the cam 11 in the exemplary embodiment is designed as a cam segment rotatable about the axis 12 or also as a spiral cam. In this way, a corresponding rotary movement of the actuating element or of the cam disk 11 additionally ensures that the door leaf 1 is also set up in relation to the body.

This is because the cam disk 11 dips increasingly into the gap between the door leaf 1 and the body during its adjusting movement between a retracted basic position and an adjusting position and, after it has hit the body, ensures that the door leaf 1 is positioned opposite the body, for example up to a Gap of 5 cm, 10 cm or even more between the door leaf 1 and the body is observed. This gap is sufficient for a user so that he can grasp the door leaf 1 and swing it open, also and in particular in the event that the door leaf 1 is equipped with the inside door handle T but not with an outside door handle or outside door handle, which has aerodynamic advantages brings.

According to the exemplary embodiment and according to the invention, the actuating element or the cam disk 11 is also acted upon by an electromotive drive 7, 8, 9, 10, which, within the scope of the exemplary embodiment and not by way of limitation, is the electromotive opening drive 7, 8, 9, 10 for the motor vehicle lock 2 is. That is, the electromotive drive 7, 8, 9, 10 takes on a double function in the example shown, on the one hand generally as a lock drive 7, 8, 9, 10 for the motor vehicle lock 2 and on the other hand as an electromotive drive 7, 8, 9, 10 or . Actuator for the erection device or the cam 11.

In order to implement this in detail, the cam disk 11 is, according to the invention, rotatably mounted with its axis 12 on or in the motor vehicle lock 2 already described. This can be seen in particular when comparing the Figures 2 and 3 . In fact, the design in the example shown is such that the electromotive drive or lock drive 7, 8, 9, 10 is attached to a motor vehicle lock housing 13 or is located inside a motor vehicle lock case supporting the locking mechanism 3, 4 as part of the motor vehicle lock housing 13 is recorded and arranged. In addition, the design is such that the said axis 12 of the cam disk 11 coincides with an axis 12 defined in the motor vehicle lock 2, according to the exemplary embodiment with the rotary latch axis, as is shown in a comparison of FIG Figures 2 and 3 clarified.

The cam 11 is acted upon by force in the direction of its basic position. For this purpose, a spring 14 is provided, which can basically be designed to be deactivated, as was explained in the introductory description, but is not shown in the exemplary embodiment. Overall, the spring 14 ensures that the cam disk or the actuating element 11, starting from the actuating position belonging to the erected door leaf 1, is returned to the retracted basic position, without being acted upon by the electric motor drive 7, 8, 9, 10 The spring 14 in question is tensioned during an erection process, i.e. the actuating movement of the cam disk 11 between the basic position and the actuating position, so that after the electric motor drive 7, 8, 9, 10 is no longer energized, the cam disk 11 can be reset using the spring 14.

In the context of the exemplary embodiment, the cam disk 11 works directly on the body, but can also act on the lock holder 5 attached to the body. Of course, it is also conceivable that one or more transmission elements between the cam 11 and the body or the lock holder 5 can be interposed, as already described in the introduction.

The electric motor drive or lock drive 7, 8, 9, 10 has, in its basic structure, an electric motor 7 which is equipped with an output worm 8 on its output shaft. The output worm 8 for its part meshes with a gear wheel 9 which, according to the exemplary embodiment, ensures that the pawl 4 is lifted from its engagement with the rotary latch 3 during the "electrical opening" operation when the locking mechanism 3, 4 is closed. As a result of this, the previously captured lock holder 5 or striker is released, so that the door leaf 1 opens slightly due to the restoring forces built up by the rubber door seal.

The gear 9 as part of the electric motor drive 7, 8, 9, 10 meshes with another gear 10, realizing a translation. The gear 10 is finally in engagement with the cam 11 and ensures that the cam 11 at least the pivoting movement associated with an erecting movement about its axis of rotation 12 during the transition from the retracted basic position, which is sunk into the door leaf 1, towards the set position with the door leaf extended 1 completed and can perform.

List of reference symbols

1

Door leaf

2

Motor vehicle lock

3

Rotary latch

4th

Pawl

3, 4

Locking mechanism

5

Lock holder

T

Inside door handle

6

remote control

7th

Electric motor

8th

Output worm

9

gear

10

gear

7, 8, 9, 10

electric motor drive / opening drive

11

Control element / cam

12

axis

13

Motor vehicle lock housing

14th

feather

Claims (10)

Positioning device for a motor vehicle door, with an electric motor drive (7, 8, 9, 10), and with an actuating element (11) acted upon by the drive (7, 8, 9, 10), the actuating element (11) being around an axis (12) rotatable cam disk (11) is formed, which works directly or indirectly on a door leaf (1) and / or a body to realize an adjusting movement between a basic position and an adjusting position and possibly vice versa, characterized in that the cam disk (11) is rotatably mounted with its axis (12) on or in a motor vehicle lock (2). Device according to Claim 1, characterized in that the axis (12) of the cam disc (11) coincides with an axis defined in the motor vehicle lock (2), for example with a pawl or rotary latch axis. Device according to Claim 1 or 2, characterized in that the drive (7, 8, 9, 10) for the cam disk (11) is also designed as a lock drive (7, 8, 9, 10). Device according to claim 3, characterized in that the lock drive (7, 8, 9, 10) is designed as an electrical opening drive, central locking drive, closing drive, anti-theft drive, child safety drive individually or possibly in combination. Device according to one of Claims 1 to 4, characterized in that the cam disc (11) is acted upon by force in the direction of its basic position. Device according to Claim 5, characterized in that a spring (14) and / or a magnet is provided for applying force to the cam disk (11). Device according to Claim 6, characterized in that the spring (14) and / or the magnet can be deactivated. Device according to one of Claims 1 to 7, characterized in that the cam disk (11) acts on a lock holder (5) and / or a body. Device according to one of Claims 1 to 8, characterized in that the drive (7, 8, 9, 10) works directly or indirectly on the cam disk (11) via a lever and / or a gear and / or a spring. Motor vehicle door, with a door leaf (1), and with an electric motor drive (7, 8, 9, 10) and an actuating element (11) acted upon by the drive (7, 8, 9, 10), the actuating element (11) being used as a A cam disc (11) which can be rotated about an axis (12) and which works directly or indirectly on a door leaf (1) and / or a body to implement an actuating movement between a basic position and an actuating position and possibly vice versa is formed, characterized in that the cam disc (11) is rotatably mounted with its axis (12) on or in a motor vehicle lock (2).

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