DE102021131149A1 - Installation of a motor vehicle door - Google Patents

Abstract

The present invention deals with the positioning of vehicle doors. In order to provide a positioning device that is also suitable for unfavorable weather conditions and at the same time provides the greatest possible user comfort, a positioning device (10) for a motor vehicle door that has a motor drive (12), a power transmission device (14) and has a plunger (16). The motor drive is designed to generate a driving force. The power transmission device couples the motor drive to the ram and transmits the drive force to the ram as an opening force. The ram is held with a guide so that it can move between a retracted position and an extended position in an extension movement in an extension direction and in a retraction movement in a retraction direction. The power transmission device applies a varying opening force to the plunger when the drive force of the motorized drive is uniform in the extension direction. The opening force is designed to decrease over at least one area of the extension movement.

Description

FIELD OF THE INVENTION

The present invention relates to the opening of vehicle doors and is concerned in particular with an opening device for a motor vehicle door, with a motor vehicle door module, with a frame module and with a method for opening a motor vehicle door.

BACKGROUND OF THE INVENTION

In order to provide improved user comfort, there are proposals for opening motor vehicle doors by means of a drive, for example by means of a motor, eg an electric drive. For example, so-called pushout units, ie door stands, are provided with which the vehicle doors are opened far enough for a user to reach behind the door to open it further manually, so that no separate handle has to be arranged on the outside. In the WO 2017/160787 A1 describes, for example, opening the vehicle door into a slightly raised position. However, it has been shown that icing can occur in the area of the vehicle doors in winter, so that there is a need to ensure that the vehicle door can be opened even under such conditions.

SUMMARY OF THE INVENTION

One object of the present invention is therefore to provide an installation device which is also suitable for unfavorable weather conditions and which at the same time provides the greatest possible user comfort.

This object is solved by the subject matter of the independent claims. Further examples are given in the dependent claims. The aspects described below apply to the opening device for a motor vehicle door and also to the motor vehicle door module, to the frame module and to the method for opening a motor vehicle door.

According to the invention, a positioning device for a motor vehicle door is provided. The erection device has a motor drive, a power transmission device and a ram. The motor drive is designed to generate a driving force. The power transmission device couples the motor drive to the ram and transmits the drive force to the ram as an opening force. The ram is held with a guide so that it can move between a retracted position and an extended position in an extension movement in an extension direction and in a retraction movement in a retraction direction. With a uniform drive force of the motorized drive in the extension direction, the force transmission device applies a varying opening force to the plunger, which is designed to decrease over at least one area of the extension movement.

This has the effect that more force is available at the beginning of opening, for example to be able to open icy doors. The subsequent faster movement means improved comfort for the user. The changing transmission ratio also allows the design of a motor that is as simple as possible, since it runs at the same speed during opening, but the transmitted force varies.

The term "tilting device" refers to a device for opening the vehicle door at least a crack so that the user can open the door manually. The installation device can also be referred to as an installation device, installation or installation unit or as a push-out unit.

The term "vehicle door" refers to a moveable component on a motor vehicle to provide access to the vehicle interior. The term motor vehicle door refers, for example, to pivoting vehicle doors of a motor vehicle or also to sliding doors. Vehicle doors are understood to mean, for example, side vehicle doors for the driver, the front passenger or the other passengers of a vehicle, or also rear doors. In one option, the term automobile door also refers to hoods, lids and doors, for example hoods, trunks, front trunks or frunks, or liftgates.

The term "motor drive" refers to a drive motor for generating the force to move the motor vehicle door. The motor drive is, for example, an electric motor. In a variant, the motor drive can be a hydraulically or pneumatically operated motor.

The term "transmission" refers to a type of gearing that transmits the power generated by the engine drive to the ram.

The term "ram" refers to the extending and retracting component which - if the positioning device is arranged in the vehicle door - rests against the body when extending and is supported on the body in order to push the vehicle door open in relation to the body. The plunger is designed, the opening force between the vehicle door and apply to a fixed body area to move the motor vehicle door in relation to the fixed body area. When the positioning device is arranged in the body, the ram rests against the vehicle door when it is extended and is supported on the vehicle door in order to push the vehicle door open.

The term "deployment direction" refers to the direction of movement of the plunger when it is moved to force open the motor vehicle door.

The term "retraction direction" refers to the direction of movement of the ram when it is no longer needed and the ram is returning to its original position.

The term "driving force" refers to the force generated by the motor drive to move the motor vehicle door.

The term "opening force" refers to the force that is actually applied to the plunger to force the vehicle door open.

The term "range of extension movement" refers to a portion of the extension movement. For example, one or more sections of the total distance of the extension movement are designated with it.

In one example, the opening force increases briefly at the start of the extension movement, only to then decrease again. The increasing force can be provided, for example, for releasing a frozen vehicle door.

In another example, the opening force increases briefly at the end of the extension movement.

In a further example, the opening force decreases from the beginning of the extension movement.

Because of the power transmission device, the force/path ratio between the driving force and the opening force can vary.

The driving force generated by the drive can also be referred to as the primary driving force or primary opening force. The opening force delivered by the power transmission device can also be referred to as the secondary drive force or secondary opening force.

The power transmission device mechanically couples the motor drive to the ram, or is operatively mechanically connected to the ram, i.e. coupled.

For example, opening by gaps is provided.

According to one example, the power transmission device transmits the driving force to the ram with a varying leverage ratio during extension. The lever ratio decreases during the extension in the at least one area, so that a greater set-up force is available at the beginning of the at least one area of the extension movement. The at least one area of the extension movement extends over more than half of the extension movement.

In one example, the leverage ratio only increases for a short time and then decreases again, i.e. drops, along the at least one range of the extension movement. As a result, the opening or opening force first increases, i.e. more force is initially made available and then decreases again.

The at least one area of the extension movement extends over more than half of the extension movement, for example over at least two thirds of the distance, for example over at least 75%. In one example, the at least one range of extension movement, i.e. the range of decreasing opening force, extends over 80% or more, for example over 90% or 95%.

For example, the term "set-up force" refers to the set-up force of the ram.

In one option, the force is designed to decrease over the entire distance.

One option provides for the power transmission ratio to change so that more power is initially available, for example to break open an icy door. This property or function is also referred to as an ice breaker (function).

Due to the changing power transmission ratio, i.e. lever ratio, the power decreases and at the same time the speed of movement increases with a uniform driving force, with a uniformly fast-running motor drive.

The erecting force can also be referred to as the push-on force.

According to one example, the power transmission device has a transmission element which rotates about a pivot point and which can be moved in rotation by the motor drive in order to act on the ram, preferably linearly ren movement of the ram. The rotation of the transmission element changes the lever ratio when transmitting the opening force during the opening process.

According to one example, in a first option i) the power transmission device has a pulley. The power transmission device has a traction element which is connected to the motor drive and is attached to the sheave for driving the rotating transmission element in rotation. In a second option ii), the power transmission device has a toothed wheel. The power transmission device has a gear which is connected to the motor drive on its input side and which is operatively connected to the toothed wheel disc on its output side for driving the rotating transmission element in rotation.

With the cable pulley in the first option, a linear pulling movement of the motorized drive is converted into a rotary movement. The rotational movement is then in turn converted into a linear movement of the ram.

With the gear wheel in the second option, a rotary movement of the motor drive is converted into a further rotary movement, which in turn is converted into a linear movement of the ram.

In one example, the plunger is elongate and is formed at one end with a free end for abutting the vehicle door or body portion and at the opposite end with a coupled end connected to the power transmission device. At the coupled end, the ram has a pin, which is guided in a guide track, for a first guidance of the ram. The plunger is guided between the free end and the spigot at the coupled end with a second guide. As an option, it is provided that the guideway has a first area that is curved and a second area that is straight in the extension direction. As a further option, it is provided that the force transmission device acts on the pin in order to move the ram.

The movement of the ram in this example is based on a pin in a guideway.

In one example, the second area runs straight, i.e. linearly, in the extension direction.

According to one example, for the second guide of the plunger, in a first option i) a slot is provided in a region between the free end and the coupled end, into which a fixed bolt protrudes. In a second option ii), lateral bearings are provided in the area where the ram exits. In one variant, both options are provided in combination.

In one option, the second portion of the track is aligned with the second track.

For example, the elongated hole and the guide track are aligned with the bolt during the extension of the ram.

In one option, the ram is held movably by the guide in such a way that a lever ratio in the power transmission chain changes due to the changing position of the power transmission point in the form of the pin. The changing position of the pin in relation to the power transmission direction leads to a changing leverage ratio. This, alone or together with a further changing lever ratio, results in the force transmission device applying a decreasing opening force to the ram in the extension direction given a uniform driving force of the motorized drive.

In a further option, the ram is movably held by a linear guide. The pivot, or other stop or similar component for power transmission, does not change in position with respect to the power transmission direction. For example, the linear guide does not provide a changing lever ratio. For this purpose, the force transmission device is designed with a changing lever ratio, so that the force transmission device acts on the ram with a decreasing opening force when the drive force of the motorized drive is uniform in the extension direction.

According to one example, the ram has a stop that is offset laterally to the longitudinal direction such that at the beginning of the extension, a pivoting movement of the ram about the second guide can be performed by guiding the pin in the first area of the guide track.

According to one example, the force transmission device has a rotatably mounted disk segment which has a radial stop for abutting against the journal. The motor drive drives the disc segment.

The movement of the ram in this example is based on a disc segment with a stop that acts on the pin.

According to one example, the force transmission device has a rotatably mounted drive lever, which has a recess into which the pin engages, so that the plunger can be moved by a pivoting movement of the drive lever.

As an option, it is provided that the recess is in the form of an elongated hole.

For example, the lever is connected to a gear wheel or a gear wheel disk and the motorized drive drives the gear wheel or the gear wheel disk. For example, a gear is provided between the motor drive and the lever.

In one variant, the lateral boundaries run parallel, i.e. with a constant clear width. For example, the elongated hole is linear with parallel lateral boundaries.

In another variant, the lateral boundaries do not run parallel, but at varying distances, i.e. with a clear width that changes along the course.

In a further option, the recess has a contour in the form of a cranked elongated hole. For example, the elongated hole has an offset in the longitudinal direction, e.g. with parallel lateral borders. For example, the elongated hole is curved, e.g. with parallel lateral borders.

The movement of the ram in this example is based on a drive lever with a slot.

According to one example, the power transmission device has a transmission gear that can be moved via the motor drive. The ram has a toothed contour. The transmission gear meshes with the tooth contour. The plunger is movable along a guide by the transmission gear.

The movement of the ram in this example is based on the gearing.

According to one example, the power transmission device has a cable that acts on the pivot to move the ram.

The movement of the ram in this example is based on the cable pull.

For example, the cable pull is connected to the motor drive at a first end. At the other, i.e. second end, the cable pull is held at a fixed holding point. The cable runs around the pivot between the first and second ends. In one example, one or more deflection points can be provided for the cable pull.

According to one example, the power transmission device has a coupling element. The coupler is supported at a moving support point at a first end and connected to the plunger at a second end. The breakpoint is arranged to be movable around a pivot point. The breakpoint can be moved with the drive. The coupling element forms a toggle lever.

So the movement of the ram in this example is based on the toggle.

As an option, it is provided that the holding point is connected to a disc segment that is rotatably mounted on the pivot point. The drive acts with the driving force on the disk segment in order to pivot it about the pivot point.

As a coupling rod, the coupling element causes the rotational movement of the driving holding point to be converted into a linear movement of the ram. The coupling element or the coupling rod can also be referred to as a push rod.

Since the (lever) distance to the linear movement of the ram changes when the holding point rotates, force is transmitted with a profile that changes over the course of the movement. A large distance means more leverage and therefore more force (with less travel) at the beginning, followed by a smaller distance, i.e. less lever and therefore less force (with greater travel).

For example, the pivot point is formed directly on the disc segment.

For example, the fulcrum is formed on a lever arm which is rotatably mounted on the fulcrum and which is connected to the disk segment.

In one example, the drive acts on the disc segment at a first distance from the pivot point and thus forms a first lever arm. The holding point is at a second distance from the pivot point, thereby forming a second lever arm. For example, the second distance, i.e. the second lever arm, is greater than the first distance, i.e. the first lever arm.

For example, the disc segment is designed as a pulley; the power transmission direction has a traction element which is attached to the sheave for driving the sheave in rotation and thus for linear movement of the ram.

In one example, the sheave segment is designed as a cable sheave segment.

For example, the motorized drive is a motorized tightening unit that is connected to a Bowden cable that is attached to the cable pulley, for example hooked onto the cable pulley. The transmission of the opening force to a Bowden cable enables the motorized drive to be arranged separately, which in turn means more design freedom in planning.

In one variant, the sheave is housed in the housing of the installation device. The sheave is thus better protected against external influences such as moisture and dirt.

In another variant, the pulley is provided on the outside of the housing of the installation device. The sheave is thus accessible from the outside.

For example, the disk segment is designed as a toothed wheel disk. The power transmission device has a gear which is connected to the motor drive on its input side and which is operatively connected to the toothed wheel disk on its output side for driving the cable pulley in rotation and thus for linear movement of the ram.

For example, the motor drive is an electric motor that is provided directly on the installation device. The transmission of the opening force to the gear allows an integrated design and thus a compact design.

The input side can also be referred to as the drive side. The output side can also be referred to as the output side.

According to the invention, a motor vehicle door module is also provided. The motor vehicle door module has a support structure of a motor vehicle door. The motor vehicle door module also has a positioning device for a motor vehicle door according to one of the preceding examples. The installation device is held on the support structure. The tappet is designed to apply the opening force between the motor vehicle door and a fixed body area in order to move the motor vehicle door in relation to the fixed body area.

The supporting structure of the motor vehicle door is, for example, a structure to which the inner lining, outer lining and the technical components of the motor vehicle door such as window glass guide and window lifting mechanism, inner door handle, outer door handle, vehicle lock and motor drives for actuating the vehicle lock are attached. The support structure is, for example, a multifunctional bracket, also referred to as a multifunctional bracket (MFB). In another example, the support structure is a door frame structure.

According to the invention, a frame module is also provided. The frame module has a fixed frame structure of a door opening in a body area of a vehicle. The frame module also has a positioning device for a motor vehicle door according to one of the preceding examples. The erection device is held on the frame structure. The plunger is designed to apply the opening force between the fixed frame structure of the motor vehicle door and a motor vehicle door in order to move the motor vehicle door in relation to the body area.

The frame structure can also be referred to as a frame segment.

• - Erzeugen einer Antriebskraft mit einem motorischen Antrieb.
• - Übertragen der Antriebskraft als Öffnungskraft auf einen Stößel mit einer Kraftübertragungseinrichtung, die den motorischen Antrieb mit dem Stößel koppelt. Der Stößel ist mit einer Führung zwischen einer eingefahrenen Stellung und einer ausgefahrenen Stellung in einer Ausfahrrichtung und einer Einfahrrichtung bewegbar gehalten.
• - Bewegen des Stößels von der eingefahrenen Stellung in Richtung der ausgefahrenen Stellung. Der Stößel wird von der Kraftübertragungseinrichtung bei einer gleichmäßigen Antriebskraft des motorischen Antriebs in der Ausfahrrichtung mit einer abnehmenden Öffnungskraft beaufschlagt.

According to the invention, a method for opening a motor vehicle door is also provided. The procedure has the following steps:

• - Generate a driving force with a motor drive.
• - Transmission of the driving force as an opening force on a plunger with a power transmission device which couples the motor drive to the plunger. The ram is held movably with a guide between a retracted position and an extended position in an extension direction and a retraction direction.
• - moving the ram from the retracted position towards the extended position. The ram is acted upon by the power transmission device with a decreasing opening force when the drive force of the motorized drive is uniform in the extension direction.

According to one aspect of the invention, a ram is provided which is movably mounted. A drive acts on the ram to extend and retract the ram. The driving force is transmitted with a changing lever or transmission ratio, so that the ram first extends with more force but at a slower speed, and then continues to advance with less force but at a higher speed.

According to one aspect of the invention, an erection device is provided in which a plunger is provided, which is guided in a guideway. During the process, the relative force application point changes, so that with the force acting by a drive remaining the same, different forces can be transmitted via the plunger to a counterpart in order to achieve an opening movement of the vehicle door in relation to a body.

In a variant, it is provided that the ram performs a small pivoting movement as a so-called ice-breaker function at the beginning of the extension movement. In addition, there is a favorable leverage effect, in that the plunger is guided close to the adjacent end and the force for the pivoting movement can be introduced at the opposite end with a longer lever.

It should be pointed out that the features of the exemplary embodiments of the devices also apply to embodiments of the method and vice versa. In addition, those features can also be freely combined with one another where this is not explicitly mentioned.

character list

• 1 zeigt eine funktionsschematische Darstellung eines Beispiels einer Aufstellvorrichtung.
• 2 zeigt eine schematische Darstellung eines Beispiels eines Kraftfahrzeugtürmoduls.
• 3 zeigt eine schematische Darstellung eines weiteren Beispiels einer Aufstellvorrichtung, bei dem ein Scheibensegment auf einen Zapfen eines Stößels wirkt, wobei der Zapfen in einer Führungsbahn geführt gehalten ist.
• 4 zeigt eine schematische Darstellung eines noch weiteren Beispiels einer Aufstellvorrichtung, bei welcher ein Elektromotor das Scheibensegment antreibt.
• 5a, 5b, 5c, 5d und 5e zeigen einen Bewegungsablauf des Beispiels aus 3 während des Ausfahrens des Stößels.
• 6 zeigt ein weiteres Beispiel einer Aufstellvorrichtung mit einem an einer Scheibe befestigten Kniehebel zum linearen Bewegen des Stößels, wobei ein Elektromotor die Scheibe antreibt.
• 7 zeigt ein noch weiteres Beispiel einer Aufstellvorrichtung, bei der die Scheibe als Seilscheibe ausgebildet ist und ein Seilzug an der Seilscheibe angreift, um diese anzutreiben.
• 8a, 8b, 8c und 8d zeigen einen Bewegungsablauf des Beispiels aus 7 während des Ausfahrens des Stößels.
• 9 zeigt ein weiteres Beispiel einer Aufstellvorrichtung, bei der ein in einer Führungsbahn geführt gehaltener Zapfen eines Stößels durch einen Hebel bewegt wird, der an einer sich drehenden Scheibe festgelegt ist.
• 10a, 10b, 10c und 10d zeigen einen Bewegungsablauf des Beispiels aus 9 während des Ausfahrens des Stößels.
• 11 zeigt ein weiteres Beispiel einer Aufstellvorrichtung, bei der ein Seilzug vorgesehen ist, der auf den in einer Führungsbahn geführt gehaltenen Zapfen des Stößels einwirkt.
• 12a, 12b, 12c und 12d zeigen einen Bewegungsablauf des Beispiels aus 11 während des Ausfahrens des Stößels.
• 13 zeigt ein weiteres Beispiel einer Aufstellvorrichtung, bei der ein Zahnrad auf den mit einem Zahnprofil ausgebildeten Stößel einwirkt.
• 14 zeigt Schritte eines Beispiels für ein Verfahren zum Aufstellen einer Kraftfahrzeugtür.

Exemplary embodiments of the invention will be discussed in more detail below with reference to the attached drawings.

• 1 shows a functional schematic representation of an example of a positioning device.
• 2 shows a schematic representation of an example of a motor vehicle door module.
• 3 shows a schematic representation of a further example of an erection device, in which a disc segment acts on a pin of a ram, the pin being held guided in a guideway.
• 4 FIG. 12 shows a schematic representation of yet another example of an erection device in which an electric motor drives the disk segment.
• 5a , 5b , 5c , 5d and 5e show a movement sequence of the example 3 during the extension of the ram.
• 6 shows another example of an erection device with a toggle lever attached to a disc for linear movement of the ram, with an electric motor driving the disc.
• 7 FIG. 12 shows yet another example of an erection device in which the pulley is designed as a cable pulley and a cable pull acts on the cable pulley in order to drive it.
• 8a , 8b , 8c and 8d show a movement sequence of the example 7 during the extension of the ram.
• 9 shows another example of an erection device, in which a pin of a plunger, which is guided in a guide track, is moved by a lever which is fixed to a rotating disk.
• 10a , 10b , 10c and 10d show a movement sequence of the example 9 during the extension of the ram.
• 11 shows another example of an erection device, in which a cable pull is provided, which acts on the pin of the ram, which is guided in a guideway.
• 12a , 12b , 12c and 12d show a movement sequence of the example 11 during the extension of the ram.
• 13 shows another example of an erection device, in which a gearwheel acts on the ram designed with a toothed profile.
• 14 shows steps of an example of a method for opening a motor vehicle door.

DETAILED DESCRIPTION OF EMBODIMENTS

1 shows a functional schematic representation of an example of a positioning device 10 for a motor vehicle door. The erection device 10 has a motor drive 12 , a power transmission device 14 and a ram 16 . The motor drive 12 is designed to generate a driving force. The power transmission device 14 couples the motor drive 12 to the plunger 16 and transmits the drive force as an opening force to the plunger 16. The plunger 16 is guided between a retracted position and an extended position in an extension movement in an extension direction and in a retraction movement in one Entry direction held movable. The power transmission device 14 applies a varying opening force to the plunger 16 when the driving force of the motorized drive 12 is uniform in the extension direction. The opening force is designed to decrease over at least one area of the extension movement.

A connecting line 18 shows a connection between the motor drive 12 and the power transmission device 14. A double arrow 20 indicates the extension and retraction movement of the ram 16, ie the extension direction and the retraction direction of the ram 16. The extension direction and the retraction direction run, for example, transversely to the plane of the Vehicle door, for example approximately orthogonal in addition. As an option, a frame 22 shows a housing of the installation device 10.

One option provides for the drive to be arranged separately from the force transmission device 14 and the ram 16 . For this is in 1 a separate motor drive 12 ′ shown in dashed lines, which is force-effectively connected to the power transmission device 14 . This coupling is shown with a connecting line 18', which is also shown in dashed lines.

In one example, the separate motorized drive 12' is a drive that is present in the door for other purposes. The separate motor drive 12' is, for example, a drive that is also used as a closing aid. In another example, the separate motorized drive 12' is a drive specially provided for this purpose. For example, a drive otherwise used for other purposes can also be considered.

The force transmission device 14 transmits the driving force to the tappet 16 with a lever ratio that changes during the extension in the at least one range. The lever ratio decreases during the extension in the at least one range, so that at the beginning of the at least one range of the extension movement there is a greater raising force is available. The at least one area of the extension movement extends over more than half of the extension movement.

2 shows a schematic representation of an example of a motor vehicle door module 50. The motor vehicle door module 50 has a support structure 52 of a motor vehicle door 54 and an example of the positioning device 10 for a motor vehicle door according to one of the examples mentioned above and below. The positioning device 10 is held on the supporting structure. The plunger 16 is designed to apply the opening force between the motor vehicle door 54 and a fixed body area 56 in order to move the motor vehicle door 54 in relation to the fixed body area 56 .

A first line 58 indicates a stop surface on the fixed body portion 56 when the vehicle door 54 is in a closed condition.

A second line 60 shows an initial opening of the vehicle door 54 in relation to the body region 56 by a small opening extent, in which, for example, icing of the vehicle door 54 has already been detached.

A third line 62 indicates the position of the body area 56 in relation to the vehicle door 54 . The third line 62 shows, for example, a pivoting movement over an opening angle 64 in which the user can reach behind an edge area of the vehicle door 54 and open it manually.

A frame module is provided as an alternative option (not shown in detail). The frame module has a fixed frame structure of a door opening in a body portion of a vehicle and an example of the opening device 10 for a vehicle door according to one of the examples mentioned above and below.

In one example, the power transmission device 14 has a transmission element rotating about a pivot point (see also 3 ff.), Which can be moved in rotation by the motor drive 12 in order to act on the ram 16 to move the ram 16. For example, the ram 16 is moved predominantly linearly. In one example, an initial pivoting of the ram 16 is provided as an option. The rotation of the transmission element 14 changes the lever ratio when transmitting the opening force during the opening process.

In one example, a disc segment acts on a pin of the ram 16, the pin being guided in a guideway (see also 3 and 5a , 5b , 5c , 5d and 5e ).

3 14 shows an example of the pop-up device 10 in which the plunger 16 is elongated and is formed at one end with a free end 66 for abutting the vehicle door 54 or body portion 56 and at the opposite end with a coupled end 68 which is connected to the Power transmission device 14 is connected. The ram 16 has at the coupled end 68 for a first guidance of the ram 16 a pin 70 which is guided in a guide track 72 (indicated by a center line). The plunger 16 is guided between the free end 66 and the pin 70 at the coupled end 68 with a second guide. The guide track 72 has a first area 74 which is curved and a second area 76 which is straight in the extension direction. The power transmission device 14 acts on the pin 70 in order to move the ram 16 . A first frame 78 indicates an end face of the vehicle door, from which the plunger 16 extends and presses against a stop face 80 . The plunger 16 is also guided through a second point 82, for example.

The power transmission device 14 has a rotatably mounted disc segment 84, which has a radial stop 86 for abutting against the pin 70. The motor drive 12 drives the disk segment 84 . The disc segment 84 is mounted on a pivot point 88 (see also double arrow 89).

In one option, the power transmission device 14 has a pulley. The power transmission device 14 has a traction element which is connected to the motor drive 12 and is attached to the pulley for driving the rotating transmission element in rotation.

In one option, the power transmission device 14 comprises a gear wheel, see for example 4 . The power transmission device 14 has a gear which is connected on its input side to the motor drive 12 and which is operatively connected on its output side to the toothed wheel disc for driving the rotating transmission element in rotation.

As a further option, it is provided that the ram 16 has a stop that is offset laterally to the longitudinal direction in such a way that at the beginning of the extension, by guiding the pin 70 in the first region 74 of the guideway, a pivoting movement of the ram 12 about a second guide, for example the second Point 82 is executable.

The extension path of the ram is, for example, 70 mm or more.

In one option it is provided that the ram is designed in several parts. For example, the plunger can also be designed to hold the vehicle door when driving out, to release it or to close it again by pulling it shut.

In 3 an initial pivoting movement of the plunger 16 at the coupled end 68 is indicated by a first pivoting double arrow 87 . The resulting pivoting movement of the free end 66 of the plunger 16 is indicated by a second pivoting double arrow 85 . The movement is based on the 5a , 5b , 5c , 5d and 5e explained.

4 12 is a schematic representation of yet another example of the erecting device in which an electric motor 90 drives the disc segment 84 which is formed with the radial stop 86 for abutting the trunnion 70. FIG. The electric motor 90 is connected, for example, with an output 92 to a gear 94 which acts on the disc segment 84 and drives it.

5a , 5b , 5c , 5d and 5e show a movement sequence of the example 3 during the extension of the ram 16. During the initial pivoting movement of the ram 16, a ram force of 800 N can be available at a constant torque of the drive element, for example the motor ( 5a ), followed by 500 N ( 5b ), then 600 N ( 5c ), then 400 N ( 5d ) and finally 340 N available ( 53 ).

In 5a the initial state or position P1 is shown; in 5e the extended state or the extended position P2 is shown.

The changing ram force when setting up is related to the changing leverage ratio in the power transmission. In the example, this is due to the interaction of the guide track 72 and the radial stop 84 . On the one hand, at the beginning there is the already mentioned rotary pivoting movement of the free end of the ram 16 and then a translational extension of the free end of the ram 16. During the extension, the distance between the contact of the radial stop 84 and the pin 72 changes.

6 shows another example of the positioning device 10 with a toggle lever 98 attached to a disc 96 for linearly moving the ram 16, with an electric motor 100 driving the disc 96, for example with a gear 102. The power transmission device 14 has a coupling element 104, the Coupling element 104 is held at a first end 106 at a moving holding point 108 and is connected at a second end 110 to the plunger 16 . The holding point 108 is arranged such that it can move about a pivot point 112 , and the holding point 108 can be moved with the drive 12 . For example, the breakpoint 108 is held by a lever 112 .

The coupling element 104 is held on the plunger 16 via a pivot point 114, for example. The tappet is designed with a widened stop 116, for example. In 6 a housing 118 is also indicated.

Optionally, the support point 108 is connected to a disc segment that is pivoted at the pivot point. The drive acts with the driving force on the disk segment in order to pivot it about the pivot point.

7 FIG. 12 shows yet another example of an erection device in which the pulley is designed as a pulley 120 and a cable 122 engages the pulley 120 in order to drive the pulley 120. FIG.

The option of a pulley 120 is also available as a further variant for the example 3 provided, so to speak as a replacement of the in 4 shown electric motor.

8a , 8b , 8c and 8d show a movement sequence of the example 7 during the extension of the ram 16. The breakpoint 108 assumes different lever ratios to the extension direction.

The changing ram force when setting up is related to the changing leverage ratio in the power transmission. In the example, this is due to the changing position of the pivot point, i.e. the holding point 108 .

9 shows another example of an erection device, in which a pin 70 of a ram, which is held guided in the guideway 72, is moved by a rotatably mounted drive lever 124, which is fixed to a rotating disk 126.

The drive lever 124 has a recess 128 in which the pin 70 engages, so that the plunger 16 can be moved by a pivoting movement of the drive lever 124 . As an option, the recess is designed as an elongated hole 128a.

For example, a motor 130 with gear 132 is indicated for driving the disc 126 .

In a region between the free end and the coupled end, an elongated hole 134 is provided, into which a fixed bolt 136 protrudes.

In another option, lateral bearings (not shown) are provided in the area where the ram exits.

Optionally, the second portion of the guide track 72 runs in alignment with the second guide.

10a , 10b , 10c and 10d show a movement sequence of the example 9 during the extension of the ram. 10a shows the home position or home position P1; 10d shows the extended position or position P2.

The changing ram force when setting up is related to the changing leverage ratio in the power transmission. In the example, this is due to the drive lever 124 and the changing position of the contact point of the drive lever 124 on the pin 70 when the drive lever 124 is pivoted.

11 shows another example of an erection device, in which a cable pull 140 is provided, which acts on the pin 70 of the ram 16, which is guided in a guideway. The cable pull 140 has, for example, a pull element 142 which is fixed at one end to a holding point 144 . From there the cable runs around the pivot 70 to a deflection 146.

12a , 12b , 12c and 12d show a movement sequence of the example 11 during the extension of the ram 16.

The changing ram force when setting up is related to the changing leverage ratio in the power transmission. In the example, this is due to the pulling element 142 of the cable pull 140 acting on the pin 70 and its changing force vectors in relation to the extension direction 20 .

13 shows another example of an erection device, in which a gearwheel acts on the tappet 16, which is designed with a toothed profile. The power transmission device 14 has a transmission gear 150 which can be moved via the motor drive. The tappet 16 has a tooth contour 152 . The transmission gear meshes with the tooth contour 152. The tappet 16 can be moved by the transmission gear 150 along a guide.

• - In einem ersten Schritt 202 erfolgt ein Erzeugen einer Antriebskraft mit einem motorischen Antrieb.
• - In einem zweiten Schritt 204 erfolgt ein Übertragen der Antriebskraft als Öffnungskraft auf einen Stößel mit einer Kraftübertragungseinrichtung, die den motorischen Antrieb mit dem Stößel koppelt. Der Stößel ist mit einer Führung zwischen einer eingefahrenen Stellung und einer ausgefahrenen Stellung in einer Ausfahrbewegung in einer Ausfahrrichtung und in einer Einfahrbewegung in einer Einfahrrichtung bewegbar gehalten.
• - In einem dritten Schritt 206 erfolgt ein Bewegen des Stößels von der eingefahrenen Stellung in Richtung der ausgefahrenen Stellung. Der Stößel wird von der Kraftübertragungseinrichtung bei einer gleichmäßigen Antriebskraft des motorischen Antriebs in der Ausfahrrichtung mit einer variierenden Öffnungskraft beaufschlagt. Die Öffnungskraft ist über wenigstens einen Bereich der Ausfahrbewegung abnehmend ausgebildet.

14 shows steps of an example of a method 200 for opening a motor vehicle door. The method 200 includes the following steps:

• - In a first step 202, a driving force is generated with a motor drive.
• - In a second step 204, the driving force is transmitted as an opening force to a plunger with a force transmission device which couples the motor drive to the plunger. The ram is held with a guide so that it can move between a retracted position and an extended position in an extension movement in an extension direction and in a retraction movement in a retraction direction.
• - In a third step 206, the ram is moved from the retracted position in the direction of the extended position. The ram is acted upon by the power transmission device with a varying opening force when the drive force of the motorized drive is uniform in the extension direction. The opening force is designed to decrease over at least one area of the extension movement.

For example, the three steps occur more or less simultaneously.

The exemplary embodiments described above can be combined in different ways. In particular, aspects of the devices can also be used for the embodiments of the method and vice versa.

It should also be noted that "comprising" does not exclude other elements or steps, and "a" or "an" does not exclude a plurality. Furthermore, it should be pointed out that features or steps that have been described with reference to one of the above exemplary embodiments can also be used in combination with other features or steps of other exemplary embodiments described above. Any reference signs in the claims should not be construed as limiting.

QUOTES INCLUDED IN DESCRIPTION

This list of documents cited by the applicant was generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.

Patent Literature Cited

• WO 2017/160787 A1 [0002]

Claims (15)

A positioning device (10) for a motor vehicle door, comprising: - A motor drive (12); - a power transmission device (14); and - a tappet (16); wherein the motor drive is designed to generate a driving force; wherein the power transmission device couples the motor drive to the plunger and transmits the drive force to the plunger as an opening force; wherein the plunger is held with a guide to be movable between a retracted position and an extended position in an extending movement in an extending direction and in a retracting movement in a retracting direction; and wherein the power transmission device applies a varying opening force to the plunger when the drive force of the motorized drive is uniform in the extension direction, the opening force being designed to decrease over at least one area of the extension movement. installation device claim 1 wherein the power transmission means transmits the driving force to the ram with a varying leverage ratio during extension; and wherein the leverage ratio decreases during deployment in the at least one range such that a greater set-up force is available at the beginning of the at least one range of deployment movement; and wherein the at least one portion of the deployment travels more than half of the deployment travel. installation device claim 1 or 2 , wherein the power transmission device has a transmission element which rotates about a pivot point and which can be moved in rotation by the motor drive in order to act on the ram for the preferably linear movement of the ram; and wherein the rotation of the transmission element changes the lever ratio when transmitting the opening force during the erection process. installation device claim 1 , 2 or 3 wherein the power transmission means: i) comprises a pulley; wherein the power transmission means comprises a traction element connected to the motor drive and fixed to the sheave for driving the rotating transmission element in rotation; or ii) comprises a gear wheel; wherein the power transmission device has a gear which is connected on its input side to the motor drive and which is operatively connected on its output side to the toothed disc for driving the rotating transmission element in rotation. An erecting device according to any one of the preceding claims, wherein the plunger is elongate and is formed at one end with a free end for abutting the vehicle door or body portion, and at the opposite end is formed with a coupled end which is connected to the power transmission device; the plunger having at the coupled end a pin (70) guided in a track (72) for first guiding of the plunger; the plunger being guided between the free end and the spigot at the coupled end with a second guide; the track having a first portion (74) that is curved and a second portion (76) that is straight in the extension direction; and the power transmission means acting on the trunnion to move the ram. installation device claim 5 , wherein for the second guidance of the ram: i) a slot (134) is provided in a region between the free end and the coupled end, into which a fixed bolt (136) protrudes; or ii) lateral bearings are provided in the area of the outlet of the ram; wherein the second portion of the guide track extends in alignment with the second guide. installation device claim 5 or 6 , wherein the ram has a stop that is offset laterally to the longitudinal direction in such a way that at the beginning of the extension, a pivoting movement of the ram about the second guide can be performed by guiding the pin in the first region of the guide track. installation device claim 5 , 6 or 7 , wherein the power transmission device comprises a rotatably mounted disc segment (84) having a radial stop (86) for abutting against the pin; and wherein the motor drive drives the disk segment. Installation device according to one of Claims 5 until 8th , wherein the power transmission device has a rotatably mounted drive lever (124) which has a recess (128) into which the pin engages, so that the plunger can be moved by a pivoting movement of the drive lever; and wherein the recess is designed as an elongated hole (128a). Installation device according to one of the preceding claims, wherein the power transmission device has a transmission gear (150) which can be moved via the motor drive; the plunger having a tooth contour (154); and wherein the transmission gear meshes with the tooth contour; and wherein the plunger is movable along a guide by the transmission gear. Installation device according to one of Claims 5 until 7 , wherein the power transmission device comprises a cable (140) which acts on the pin to move the ram. Installation device according to one of Claims 1 until 4 wherein the power transmission device comprises a coupling element (104), the coupling element being held at a moving support point (108) at a first end (106) and being connected to the ram at a second end (110); wherein the holding point is arranged to be movable about a pivot point (112), and wherein the holding point is movable with the drive; wherein the support point is connected to a disc segment which is rotatably mounted on the pivot point; and wherein the driver acts with the driving force on the disk segment to pivot about the pivot point. A motor vehicle door module (50), comprising: - a supporting structure (52) of a motor vehicle door (54); and - a positioning device (10) for a motor vehicle door according to one of Claims 1 until 12 ; wherein the erection device is held on the support structure; and wherein the plunger is designed to apply the opening force between the motor vehicle door and a fixed body area in order to move the motor vehicle door in relation to the fixed body area. A frame module, comprising: - a fixed frame structure of a door opening in a body area of a vehicle; and - a positioning device for a motor vehicle door according to one of Claims 1 until 12 ; wherein the erection device is held on the frame structure; and wherein the plunger is configured to apply the opening force between the fixed frame structure of the motor vehicle door and a motor vehicle door to move the motor vehicle door in relation to the body area. A method (200) for raising a motor vehicle door, comprising the following steps: - Generating (202) a driving force with a motor drive; - Transmission (204) of the driving force as an opening force to a plunger with a force transmission device which couples the motor drive to the plunger; wherein the plunger is held with a guide to be movable between a retracted position and an extended position in an extending movement in an extending direction and in a retracting movement in a retracting direction; and - moving (206) the ram from the retracted position towards the extended position; wherein the ram is acted upon by the power transmission device with a varying opening force when the drive force of the motorized drive is uniform in the extension direction. The opening force is designed to decrease over at least one area of the extension movement.

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