EP3049598B1 - Motor vehicle door handle - Google Patents

Description

The invention relates to a motor vehicle door handle for door lock and / or door operation of a motor vehicle, with a handle housing and a pull handle arranged in the handle housing, the pull handle in a closed position flush with the handle housing and / or rests in the handle housing and being displaceable into an operating position , in which the pull handle protrudes outward from the handle housing and can be grasped from behind, the door lock and / or the door opening when the pull handle is manually pulled in the operating position.

Such door handles, which have a pull handle which, in its rest or closed position, is flush with the body of the motor vehicle or the handle housing, are for example from the DE 100 15 887 C1 and the DE 10 2004 036 663 A1 known.

Door handles for a motor vehicle with a handle housing and a pull handle pivotably mounted in the handle housing are known from these documents, which in a closed and rest position is flush with the body of a motor vehicle or a handle housing, the pull handle in a pivoted-out, protruding from the body The operating position can be shifted, in which the pull handle can be grasped from behind and wherein the door lock and / or the door opens when the pull handle is pulled.

From document US 2013/0076048 A1 a door handle assembly is known in a vehicle handle, comprising a door handle of a planar handle element having a first post section and a second post section, a pivot arm with an upper portion and a lower portion, the upper portion of the pivot arm, in the vicinity of a distal Portion of the first post part of the door handle and from a distal portion of the second post part of the door handle is coupled and the lower portion is rotatably attached to a shaft on an inner door surface of the vehicle. Furthermore, force sensors are arranged that control the retraction force.

The disadvantage of the known motor vehicle door handles is that they have very complex constructions in order to make it possible to move the pull handle from its rest and closed position into its operating position.

The invention is therefore based on the object of developing a generic motor vehicle door handle for door lock and / or door actuation of a motor vehicle in such a way that it can be displaced from its closed position into its operating position by means of a simplified, mechanically stable mechanism.

This object is achieved by a motor vehicle door handle according to claim 1. A motor vehicle door handle according to the invention differs mainly from the prior art by a locking element which is kinematically coupled directly or indirectly to the pull handle and which engages in the closed position of the pull handle and latches the pull handle, the locking element being moved into a release position by means of an actuating lever before the operating lever engages at least one of the two rotary levers and swivels it about its axis of rotation. Advantageous further developments of the invention are given in the subclaims.

Particularly advantageous in the motor vehicle door handle for door lock and / or door operation of a motor vehicle, with a handle housing and a pull handle arranged in the handle housing, wherein the pull handle is flush with the handle housing in a closed position and / or rests in the handle housing and can be moved into an operating position , in which the pull handle protrudes from the handle housing to the outside and can be grasped from behind, whereby the door lock and / or the door opens when the pull handle is manually pulled in the operating position, it is that the pull handle has two points of articulation at a distance from one another, the pull handle on the first articulation point is articulated at one end of a first rotary lever and spaced therefrom at the second articulation point articulated at one end of a second rotary lever, the two rotary levers rotating about axes of rotation in order to move the handle from the closed position into the operating position.

The fact that the pull handle is arranged via two pivot points that are spaced apart from one another on two rotary levers, which in turn rotate around axes of rotation that are in turn spaced apart, creates a robust and simple kinematics system that allows the handle to be moved out of the closed position, in which the handle is flush with the handle housing closes or resides in the handle housing, implemented in the operating position, in which the handle is shifted to the outside and can be accessed from behind. The invention thus advantageously makes it possible to move the pull handle from a closed and rest position into its operating position.

The axes of rotation around which the rotary levers rotate when the pull handle is displaced can run parallel to one another at a distance or be skewed to one another or intersect at a point outside the handle housing.

The terms rest position and closed position are used synonymously in the context of the invention and describe the position in which the pull handle is flush with the handle housing or is recessed in the handle housing

The articulation points are preferably one behind the other in the extension direction of the handle. The extension direction means the outward direction from the handle housing, that is to say the direction which corresponds to the main direction of movement of the handle from the closed position to the operating position.

The axes of rotation about which the rotary levers rotate when the handle is displaced are preferably also one behind the other in the extension direction of the handle.

The distance between the two articulation points of the pull handle and the distance between the axes of rotation of the two rotary levers can be the same, so that the articulation points and the axes of rotation of the two rotary levers form corner points of a parallelogram. This means that when the rotary lever is pivoted, the two connecting lines between the articulation point and pivot point of the first rotary lever with the connecting line of the second articulation point with the axis of rotation of the second rotary lever each run parallel and thus span a parallelogram. However, this is not necessarily the case. Alternatively, the distance between the articulation points can deviate from the distance between the axes of rotation of the rotary levers, so that a trapezoid is spanned.

What is advantageous, however, is the kinematics that result in each case, which means that the pull handle can be displaced from its closed position inside the handle housing into its operating position, whereby the pull handle can be pivoted via two spaced articulation points on two rotary levers, which in turn are pivotable about spaced axes of rotation , is articulated, is moved out of the handle housing on an arcuate path without the inclination of the pull handle changing significantly with respect to the handle housing, since it is particularly undesirable for aesthetic reasons that the pull handle is pivoted out of the handle housing into its operating position on a circular path and thereby its inclination with respect to the handle housing changes significantly.

The invention thus creates a simple and robust mechanism which enables the desired movement of the pull handle from its closed position into its operating position and back.

The actuating lever, which engages at least one of the two rotary levers and pivots it about its axis of rotation, thereby causes the pull handle to be shifted from the closed position into the operating position. The motor vehicle door handle particularly preferably has an electromotive drive which directly or indirectly engages at least one of the two rotary levers and swivels it about its axis of rotation and thereby shifts the handle from the closed position to the operating position.

This electromotive drive is particularly preferably triggered by the fact that an access code is exchanged on the part of a locking device of the motor vehicle via a radio link with an external identification transmitter and, when the access authorization is established, the electromotive drive is automatically actuated in order to extend the handle from its closed position into the operating position.

According to the invention, the motor vehicle door handle thus has a locking element which is kinematically coupled directly or indirectly to the pull handle and engages in the closed position of the pull handle and latches the pull handle, the locking element being displaced into a release position by means of an actuating lever before the actuating lever is at least engages one of the two rotary levers and pivots it about its axis of rotation.

The actuating lever, which engages at least one of the two rotary levers, can accordingly be developed in such a way that the actuating lever, in its pivoting movement before it engages at least one of the two rotary levers, first displaces a locking element which is in engagement in the closed position of the pull handle into a release position, so that the handle is unlocked again and can be moved into its operating position.

This locking element, which is engaged and locks the handle in its closed position, serves as an accident protection to avoid that the handle is moved as a result of an impulse in the event of an impact of the motor vehicle due to the inertia from the closed position into the operating position in order to ensure that in the event of an accident, the vehicle door does not open, so that the protection for the vehicle occupants is maintained.

The locking element can be formed by a cam which is arranged at a front end of a pivot lever coupled to the actuating lever and which can be moved from a latching position into a release position in a link on the handle housing.

This cam forming the locking element is kinematically coupled to the pull handle and thus locks the pull handle in its pivoted position when the cam is in its locked position within the link on the handle housing.

After the cam has moved out of the latching position, the pull handle can in turn be moved from its closed position into the operating position, since the cam forming the locking element can be moved in the link guide of the handle housing. This enables a relative movement of the handle with respect to the handle housing.

In a preferred embodiment, the motor vehicle door handle has at least one spring element which exerts a spring force acting in the direction of the closed position on at least one of the two rotary levers.

This spring element accordingly effects an automatic shift of the pull handle back into the closed position in the handle housing when a drive is switched off or removed in the direction of the operating position.

The spring element can be a helical spring, plate spring, torsion bar spring, spiral spring or the like. The spring action in the closing direction can thus be generated in that a force with a point of application at a distance from the axis of rotation is exerted on one of the rotary levers and has a component in the opposite direction to the extension direction. Alternatively or cumulatively, a torque on the axis of rotation can also act on at least one of the rotary levers in the closing direction, i.e. applied against the direction of extension.

The motor vehicle door handle preferably has an actuating element which directly or indirectly engages at least one of the two rotary levers and, when the actuating element is manually actuated, pivots it about its axis of rotation and displaces the pull handle into the operating position.

Such a manually operable actuating element makes it possible to move the pull handle from its closed position inside the handle housing to its operating position outside the handle housing in order to allow the pull handle to be pivoted out of its at least manually, even if an electric motor drive or the like fails To enable the closed position in the operating position and thereby enable the door lock and the motor vehicle door to be actuated.

Figuren 1 - 5

eine Seitenansicht eines Kraftfahrzeugtürgriffs mit verschiedenen Stellungen des Zuggriffs gegenüber dem Griffgehäuse;

Figuren 6 - 10

eine Rückansicht des Kraftfahrzeugtürgriffs gemäß den Figuren 1 - 5 in verschiedenen Stellungen des Zuggriffs gegenüber dem Griffgehäuse analog zu den Figuren 1 - 5.

An embodiment of the invention is shown in the figures and is explained in more detail below. Show it:

Figures 1 - 5

a side view of a motor vehicle door handle with different positions of the pull handle relative to the handle housing;

Figures 6-10

a rear view of the motor vehicle door handle according to FIG Figures 1 - 5 in different positions of the handle with respect to the handle housing analogous to the Figures 1 - 5 .

In the Figures 1 - 10 Identical components are provided with identical reference symbols. The Figures 1 - 5 show side views of a motor vehicle door handle in different positions of the pull handle 2 and the pull handle 2 from the closed position according to FIG Figure 1 in the operating position according to Figure 5 relocating kinematics. The figures show the continuous movement of the handle 2 relative to the handle housing 1 in the corresponding order of their ascending numbering.

The Figures 6-10 show the rear views of the motor vehicle door handle in different positions of the pull handle 2 and the pull handle 2 from the closed position according to FIG Figure 6 in the operating position according to Figure 10 relocating kinematics, with the individual in the Figures 6-10 positions shown correspond to the various positions Figures 1 -5 correspond and thus show the displacement of the handle 2 from the closed position into the operating position.

The handle 2 of the motor vehicle door handle is arranged within the handle housing 1, the handle 2 in the in Figure 1 or. Figure 6 the closed position shown is flush with the handle housing 1.

The pull handle 2 is coupled to the upper end of the first rotary lever 10 via a first articulation point 21. The first rotary lever 10 is mounted pivotably about its axis of rotation 11. The axis of rotation 11 is stationary with respect to the housing 1.

Furthermore, the pull handle 2 is articulated to the upper end of the second rotary lever 20 via the second articulation point 22. The second rotary lever 20 is mounted pivotably about the axis of rotation 12. The axis of rotation 12 is also stationary with respect to the housing 1.

The arrow 3 according to Figure 1 characterizes the extension direction of the handle 2 with respect to the handle housing 1.

The two articulation points 21, 22, by means of which the pull handle 2 is articulated to the two rotary levers 10, 20, lie one behind the other in the extension direction 3 at a distance from one another. The two axes of rotation 11, 12 of the two rotary levers 10, 20 are also one behind the other in the extension direction 3.

In the image plane according to the Figures 1 to 5 In front of the second rotary lever 20 there is arranged an actuating lever 30 which is also rotatably supported on the second rotary axis 12.

In the representations according to Figures 6 to 10 this actuating lever 30 lies to the left of the second rotary lever 20 and, like the second rotary lever 20, is rotatably mounted on the second rotary axis 12.

To move the handle 2 from the in Figure 1 or. Figure 6 shown closed position within the handle housing 1 in the Figure 5 or. Figure 10 The operating position shown, in which the handle 2 is pushed out of the handle housing 1, engages via a projection 32 on the actuating lever 30 an electric motor drive with a force component in the direction of the arrow 4, which runs parallel to the extension direction 3 of the handle 2.

The displacement of the handle 2 on the operating lever is based on the Figures 1 to 5 or analogously using the Figures 6 to 10 clear.

At the upper end of the actuation lever 30, a pivot lever 40 is coupled to the actuation lever via an eye 31. The actuating lever 40 has an elongated hole 41 by means of which the actuating lever slides over the axis running through the second articulation point 22, so that a relative movement of the upper end of the pivot lever 40 with respect to the articulation point 22 is possible. At the upper end of the pivot lever 40, a cam 42 acting as a locking element is arranged, which in the Figure 1 or. Figure 6 shown closed position is in its detent position. The latching position of the cam 42 is characterized in that the cam prevents a relative movement of the handle 2 with respect to the housing 1 in this position. This is achieved in that the cam 42 is retracted into the latching position 14 within the link guide 13 arranged on the housing 1, this latching position 14 holding the cam through the flanks to the right and left of the link guide 13 and preventing the pull handle 2 from moving in the extension direction 3 . This locking position is formed by a pocket-shaped receptacle 14 of the link guide 13, into which the cam moves. Due to the right and left flanks of the pocket-shaped receptacle 14, a relative movement of the pull handle 2 with respect to the handle housing 1 is not possible as long as the cam 42 is within the latching position 14.

This cam 42, which is engaged in the closed position of the handle 2 and latches the handle 2 in its closed position, serves as an accident protection to prevent the handle 2 from being pulled out of the vehicle as a result of an impulse in the event of a collision with the motor vehicle due to the inertia The closed position is shifted out into the operating position. This ensures that the motor vehicle door does not open even in the event of a strong impulse due to an accident, so that the protection for the vehicle occupants is maintained.

When the pivot lever 30 is actuated by the electric motor drive in the direction of the arrow 4, the pivot lever 30 is turned around the axis of rotation 12 in the image plane according to the Figures 1 to 5 pivoted to the left and, via the coupling with the pivot lever 40 via the eye 31, causes the upper end of the pivot lever to be shifted along the elongated hole 41, whereby the cam 42 is shifted upwards from the latching position 14 within the link guide 13, as shown in FIG Figure 2 and accordingly in Figure 7 is shown. After the cam 42 has been moved out of the latching position 14 within the link guide 13, it is possible to move the pull handle 2 in the extension direction relative to the housing 1, since the link guide 13 is part of the stationary housing 1. This release position, in which the cam 42 has left the detent position 14, is shown in FIG Figure 2 or. Figure 7 shown.

The actuating lever 30 also has a cam 33 which runs within an elongated hole 25 in the second rotary lever 20. The elongated hole 25 within the second rotary lever 20 is dimensioned in such a way that the actuating lever 30 can be freely pivoted relative to the second rotary lever 20 until the cam 42, which acts as a locking element, is out of the latching position 14 according to FIG Figure 1 or. Figure 6 in the release position according to Figure 2 or. Figure 7 is extended. In the in Figure 2 or. Figure 7 The moment shown, the cam 33 of the actuating lever 30 comes to a stop within the elongated hole 25 of the second rotary lever 20, so that further pivoting of the actuating lever 30 about the second axis of rotation 12 to the left in the plane of the drawing according to FIGS Figures 1 - 5 around then a rotation of the second rotary lever 20 likewise about the second axis of rotation 12 is effected in a counterclockwise direction.

Due to the kinematic coupling of the second rotary lever 20 via the second articulation point 22 with the pull handle 2, as a result of a further actuation of the actuating lever 30, the pull handle 2 is moved in the extension direction 3 from the closed position inside the housing 1 outwards in the image plane according to FIG Figures 1 to 5 shifted to the left like this in the Figures 3 and 4th is shown. The cam 42 acting as a locking element slides along within the link guide 13 and enables the handle 2 to be displaced in the extension direction 3 up to its in Figure 5 or.

Figure 10 Operating position shown, in which the cam 42 comes to a stop at the end of the link guide 13 and the pull handle 2 is moved into its operating position outside the housing 1. In the operating position of the handle 2 according to Figure 5 or. Figure 10 the handle can be grasped from behind, so that the door lock can be unlocked and the door of the motor vehicle can be opened by manually pulling the handle.

A retraction of the handle 2 from the operating position according to FIG Figure 5 or. Figure 10 back into the closed position or closed position within the housing 1 according to Figure 1 or. Figure 6 takes place exactly the other way round and can be traced back to the figures in descending order of their numbering.

The cam 42 slides along the link guide 13 in the image plane according to FIG Figures 1 to 5 to the right, while the rotary levers 10, 20 rotate about their respective axis of rotation 11, 12 in the clockwise direction. After the pull handle 2 according to its closed position Figure 2 or. Figure 7 reached, the operating lever 30 is rotated further clockwise to the position according to Figure 1 or. Figure 6 to reach and move the cam 42 into the latching position 14. Is the position according to the order Figure 1 or. Figure 6 reached again, the pull handle 2 is locked by the locking of the cam 42 in the pocket-shaped receptacle 14.

Claims (10)

1. Motor vehicle door handle for locking and/or actuating a door of a motor vehicle, having a handle housing (1) and a pulling handle (2) arranged in the handle housing (1), wherein, in a closed position, the pulling handle (2) terminates flush with the handle housing (1) and/or rests in the handle housing (1) and can be displaced into an operating position in which the pulling handle (2) protrudes outwards from the handle housing (1) and can be gripped from the rear, wherein when the pulling handle (2) is pulled manually in the operating position the door lock and/or the door opens, characterised in that the pulling handle (2) has two articulation points (21, 22) spaced apart from one another, wherein the pulling handle (2) is supported on the first articulation point (21) in an articulated fashion at one end of a first rotary lever (10), and is supported spaced apart therefrom on the second articulation point (22) in an articulated fashion at one end of a second rotary lever (20), wherein the two rotary levers (10, 20) rotate about rotational axes (11, 12) in order to displace the pulling handle (2) from the closed position into the operating position, and wherein the motor vehicle door handle has a locking element (42), which is indirectly or directly kinematically coupled to the pulling handle (2) and which is engaged in the closed position of the pulling handle (2) and latches the pulling handle (2), wherein the locking element (42) is displaced into a release position by means of an actuation lever (30) before the actuation lever (30) engages on at least one of the two rotary levers (10, 20) and pivots said lever about its rotational axis (11, 12).
2. Motor vehicle door handle according to claim 1, characterised in that the rotational axes (11, 12) run parallel to one another at a distance or are skewed to one another or intersect at a point outside of the handle housing (1).
3. Motor vehicle door handle according to claim 1 or 2, characterised in that the articulation points (21, 22) are arranged successively in the extension direction (3) of the pulling handle (2).
4. Motor vehicle door handle according to any of the preceding claims, characterised in that the rotational axes (11, 12), about which the rotary levers (10, 20) rotate when the pulling handle (2) is displaced, are arranged successively in the extension direction (3) of the pulling handle (2).
5. Motor vehicle door handle according to any of the preceding claims, characterised in that the distance between the two articulation points (21, 22) of the pulling handle (2) and the distance between the rotational axes (11, 12) of the two rotary levers (10, 20) is equal, so that the articulation points (21, 22) and the rotational axes (11, 12) of the two rotary levers (10, 20) form corner points of a parallelogram.
6. Motor vehicle door handle according to any of the preceding claims, characterised in that the actuation lever (30), which engages on at least one of the two rotary levers (10, 20) and pivots said lever about its rotational axis (11, 12), thereby causes the displacement of the pulling handle (2) from the closed position into the operating position.
7. Motor vehicle door handle according to any of the preceding claims, characterised in that the motor vehicle door handle has an electric motor drive, which directly or indirectly engages on at least one of the two rotary levers (10, 20) and pivots said lever about its rotational axis (11, 12), thereby causing the displacement of the pulling handle (2) from the closed position into the operating position.
8. Motor vehicle door handle according to any of the preceding claims, characterised in that the locking element is formed by a cam (42), which is arranged at a front end of a pivot lever (40) coupled to the actuation lever (30) and which is displaceable from a latching position (14) into a release position in a link (13) on the handle housing (1).
9. Motor vehicle door handle according to any of the preceding claims, characterised in that the motor vehicle door handle has at least one spring element which exerts a spring force on at least one of the two rotary levers (10, 20), which spring force is effective in the direction of the closed position.
10. Motor vehicle door handle according to any of the preceding claims, characterised in that the motor vehicle door handle has an actuation member which directly or indirectly engages on at least one of the two rotary levers (10, 20) and which pivots said lever about its rotational axis (11, 12) upon manual actuation of the actuating element and displaces the pulling handle (2) into the operating position.

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