EP3032015B1 - Motor vehicle door handle assembly with guide of the handle - Google Patents

Description

The invention relates to a motor vehicle door handle with a handle which is arranged in a handle housing and displaceable by rotation about an axis of rotation from a rest position to an actuating position, wherein a arranged at the rear of the handle at the free end handle hook is kinematically coupled to a lever, wherein the Relay lever during the displacement of the rest position in the operating position acts directly or indirectly on a motor vehicle door lock to effect a release of the lock and to allow an opening of the vehicle door. Such motor vehicle door handle assemblies for actuating a motor vehicle door are, for example, from the documents EP 2 314 804 A1 and EP 1 895 081 A1 known. A disadvantage of the known arrangements is that these make a negative haptic impression on the user due to the bearing clearance on the axis of rotation, by which the handle is displaced from its rest position to an operating position, when arranged at the back of the handle at the free end Handle hook in the area in which he passes through the handle housing, wiggling back and forth. If this area, in which the arranged at the free end of the handle grip hook in the handle housing forms too narrow guide, in turn, unwanted noise may arise when operating the motor vehicle door handle.

The object of the invention is therefore to develop a motor vehicle door handle assembly for actuating a motor vehicle door such that it has an improved guide in particular of the handle hook.

This object is achieved by a motor vehicle door handle assembly according to claim 1. Advantageous developments of the invention are specified in the subclaims.

Particularly advantageous in the motor vehicle door handle with a handle which is arranged in a handle housing and displaceable by rotation about an axis of rotation from a rest position to an actuating position, wherein a arranged on the back of the handle at the free end handle hook is kinematically coupled to a lever, wherein the Relay lever during the displacement of the rest position in the operating position indirectly or directly acts on a motor vehicle door lock to effect a release of the lock and to allow an opening of the vehicle door, it is that the handle hook has at least one guide element, by means of which the handle hook in a corresponding profile of the handle housing is guided, wherein the guide element forms a positive connection with the handle hook.

Accordingly, when the motor vehicle door lock is unlocked, the handle is gripped by the user and is moved from a rest position into an open position for opening the motor vehicle door. The handle has on its back on a handle hook, which is kinematically coupled directly or indirectly with the lever. In a displacement of the handle from the rest position to the open position due to the kinematic coupling of the handle with the lever rotation of the reversing lever is effected about its axis of rotation from the rest position to the operating position of the reversing lever, so that when unlocked motor vehicle door lock opening the vehicle door is possible ,

Characterized in that the handle hook has at least one guide element, by means of which the handle hook in a corresponding profile of the handle housing is guided, the handle has a total significantly reduced tilting play, in particular of less than +/- 1 °, more preferably of less than +/- 0.5 °. Due to this minimal tilting play, the haptic impression of the motor vehicle door handle is significantly improved for the user because the handle hook is guided by means of the guide element and the bearing clearance in the area of the rotation axis about which the handle is rotatable from the rest position to the actuation position is compensated by the guide element ,

Furthermore, it is possible by this provided as an additional component guide element to combine different materials together, which have better sliding properties. In particular, the guide element may be formed of a material which has optimized sliding properties, so that in particular unwanted noise such as squeaking during actuation of the motor vehicle door handle, effectively prevented.

Characterized in that the guide element forms a positive connection with the handle hook, an optimal fastening and mounting of the guide element on the handle hook in a particularly advantageous and simple manner possible.

In this case, the handle hook at its free end laterally projecting coupling pin, which einliegen in corresponding recesses on the lever. Such coupling pins which protrude laterally at the free end of the handle hook thus form the bearing for the lever. With the free end of the handle hook the lever facing the end of the handle hook is called. About the free end of the handle hook is kinematically coupled to the lever.

In this case, the guide element engages around the coupling pin at least partially positively. By the guide element not only engages around the handle hook form-fitting, but also at least partially positively engages the coupling pin, the coupling is optimized with the lever, since the guide element thereby simultaneously the storage area for Coupling forms with the lever. In the area of the coupling of the bearing journals with the deflection lever, the guiding profile then preferably simultaneously serves as a sliding element with optimized sliding properties.

Particularly preferably, the guide element is designed as a U-profile, which is attached from one side over the handle hook. In this case, the handle hook in particular have a rectangular cross-section, wherein the cross-sectional area of the handle hook over the length of the handle hook can be constant or variable. The vertical section through the handle hook can thus also correspond to a rectangle. Overall, the handle hook may have a curved contour, in particular completely or partially correspond to a circular arc section, so that the handle hook is at least partially on a circular arc around the axis of rotation of the handle around.

The guide element thus preferably forms a sliding shoe for the handle hook. This sliding block engages around the handle hook at least partially, preferably in the form of a handle hook overarching U-profile.

Preferably, the guide element has latching lugs which engage in undercuts and / or recesses in the handle hook. Alternatively or cumulatively, the handle hook may have locking lugs on its outer contour, which engage in corresponding undercuts and / or recesses and / or openings in the guide element. By such locking lugs on the guide element and / or on the handle hook, which engage in undercuts and / or recesses in the handle hook or the guide element, it is possible, the guide element which forms a positive connection with the handle hook, in a simple manner on the handle hook aufzustecken and attach by clipping the locking lugs in the corresponding undercuts and / or recesses on the counterpart.

Particularly preferably, the guide element on the outside longitudinally extending positive guide profiles, which with negative guide profiles in the Handle hook cooperate leading profile of the handle housing. Accordingly, ribs can be arranged on the outer side of the guide profile, which slide in corresponding recesses in the handle hook leading profile of the handle housing along. With the term longitudinal while doing the longitudinal direction, ie the direction of movement of the handle hook in a rotation of the handle about its axis of rotation for actuating the motor vehicle door handle.

Alternatively or cumulatively, the guide element may have longitudinally extending negative guide profiles on the outside, which interact with positive guide profiles in the grip hook leading profile of the handle housing. In this case, the grip hook leading profile of the handle housing on projections which engage in grooves extending on the outside of the guide element.

Such longitudinal guide profiles accordingly form outer ribs and / or recesses which cooperate with corresponding recesses and / or ribs on the handle hook leading profile of the handle housing. As a result, an optimized and the bearing clearance compensating leadership of the handle hook is formed so that the handle of the motor vehicle door handle has a total of minimal tilting play and is optimally guided in the handle housing.

In particular, can be used in the opening in the handle housing, which is penetrated by the handle hook on the handle, a profile insert, in particular of a material with optimized sliding properties. This profile insert is contoured accordingly and cooperates with the particular outside profiled guide member on the handle hook.

Preferably, the handle and the handle hook are integrally formed. Alternatively, the handle hook can be attached as a separate component, for example, by a screw and / or a positive connection and / or a frictional connection to the handle. In particular, the handle and the handle hook can be formed from fiber-reinforced polyamide.

Particularly preferably, the guide element is formed from plastic, in particular polyoxymethylene. This material has compared to the material of the handle hook optimized sliding properties, so that the guide member having handle hook in the handle hook receiving profile within the handle housing can slide along optimally.

Preferably, the reversing lever and / or the handle of the motor vehicle door handle are spring-loaded in the direction of the rest position. This ensures that the handle after releasing by the user automatically pivots back into the rest position by a rotation about its axis of rotation.

By such a spring load of the lever and / or handle ensures that the lever and the handle are relocated after releasing by a user in the rest position, since the lever and the handle are indirectly or directly kinematically coupled.

Preferably, the reversing lever is coupled via a push rod and / or a pull rod and / or a cable to the motor vehicle door lock, whereby the opening of the motor vehicle door lock is effected in an unlocked motor vehicle door lock during rotation of the reversing lever in its operating position.

In a preferred embodiment, the reversing lever has at least one locking element which engages with an accidental lock on occurrence of an external pulse as a result of a side impact and blocks a displacement of the reversing lever and the handle from the rest position to its actuated position.

By arranging such an accidental lock, an undesired displacement of the reversing lever into the actuation position can be associated with undesired release of the unlocked motor vehicle door lock in the vehicle Case of an accident can be avoided. In this case, such an accidental lock due to the external pulse as a result of an impact, in particular in a side impact, engage and block a displacement of the reversing lever from the rest position to its actuated position.

Accordingly, the movable masses, any spring constants when a spring load and the ease of the joints of the motor vehicle door handle assembly and in particular the crash barrier are chosen so that when a pulse occurs, for example as a result of an accident, the crash barrier is so smooth and has a corresponding inertia that First, the crash barrier with the locking element on the bellcrank comes into engagement and thereby blocks the bellcrank, before the handle and the lever could be displaced out of the rest position due to the pulse. This accident protection reliable opening of the door due to an impact or other events is prevented.

Such an accident lock can be formed, in particular, by a circular disc having one or more recesses, which in its rest position enables pivoting of the reversing lever into the release position, in that a latching lug arranged on the reversing lever enters a recess of the circular disc. In the case of an external impulse such as a fall of the vehicle, the circular disc is rotated by inertial masses which act on corresponding drivers on the circular disk in a blocking position, so that thereby the lever is blocked and the door lock can not be accidentally released. Further, while a circular disc in the direction of the rest position rotating return spring is arranged.

Fig. 1

eine perspektivische Ansicht eines Teils einer Kraftfahrzeugtürgriffanordnung in der Ruheposition;

Fig. 2

eine weitere perspektivische Ansicht der Anordnung nach Fig. 1 in der Ruheposition;

Fig. 3

eine perspektivische Ansicht der Anordnung nach Fig. 1 mit einem in die Betätigungsposition verlagerten Handgriff;

Fig. 4

einen vergrößerten Ausschnitt des Griffhaken mit aufgesetztem Führungselement;

Fig. 5

einen vergrößerten Ausschnitt des Kopplungsbereiches von Griffhaken und Umlenkhebel in einer perspektivischen Ansicht;

Fig. 6A

einen vergrößerten Ausschnitt des Kopplungsbereiches von Griffhaken und Umlenkhebel in einer Seitenansicht;

Fig. 6B

den Schnitt VI - VI nach Fig. 6A;

Fig. 7

einen vergrößerten Ausschnitt des Kopplungsbereiches von Griffhaken und Umlenkhebel vor dem Einsetzen des Griffhakens in die Aufnahmebereiche an dem Umlenkhebel in einer Draufsicht;

Fig. 8A

einen vergrößerten Ausschnitt des Kopplungsbereiches von Griffhaken und Umlenkhebel in perspektivischen Ansichten vor dem Einsetzen des Griffhakens in die Aufnahmebereiche an dem Umlenkhebel;

Fig. 8B

einen vergrößerten Ausschnitt des Kopplungsbereiches von Griffhaken und Umlenkhebel in perspektivischen Ansichten während des Einsetzens des Griffhakens in die Aufnahmebereiche an dem Umlenkhebel;

Fig. 9

einen vergrößerten Ausschnitt des Kopplungsbereiches von Griffhaken und Umlenkhebel in einer perspektivischen Ansicht nach dem Einsetzen des Griffhakens in die Aufnahmebereiche an dem Umlenkhebel.

An embodiment of the invention is illustrated in the figures and will be explained below. Show it:

Fig. 1

a perspective view of a part of a motor vehicle door handle assembly in the rest position;

Fig. 2

a further perspective view of the arrangement according to Fig. 1 in the resting position;

Fig. 3

a perspective view of the arrangement according to Fig. 1 with a displaced into the operating position handle;

Fig. 4

an enlarged section of the handle hook with attached guide element;

Fig. 5

an enlarged section of the coupling region of handle hook and lever in a perspective view;

Fig. 6A

an enlarged section of the coupling region of handle hook and lever in a side view;

Fig. 6B

the section VI - VI after Fig. 6A ;

Fig. 7

an enlarged section of the coupling region of handle hook and lever before insertion of the handle hook in the receiving areas on the lever in a plan view;

Fig. 8A

an enlarged section of the coupling region of handle hook and lever in perspective views before inserting the handle hook into the receiving areas on the lever;

Fig. 8B

an enlarged section of the coupling region of handle hook and lever in perspective views during insertion of the handle hook into the receiving areas on the lever;

Fig. 9

an enlarged section of the coupling region of handle hook and lever in a perspective view after insertion of the handle hook in the receiving areas on the lever.

In the FIGS. 1 to 3 is shown a perspective view of a portion of a motor vehicle door handle assembly for actuating a motor vehicle door. FIGS. 1 and 2 show the arrangement in the resting position during FIG. 3 the arrangement in the operating position shows, in which the lever 10 from the rest position according to Fig. 1 and 2 in the operating position according to Fig. 3 is displaced by rotation about its axis of rotation 11. This rotation of the reversing lever 10 in the actuation position is effected by the displacement of the handle 20, which is kinematically coupled to the reversing lever 10, by a rotation about its axis of rotation 23 in the actuation position. In the actuation position, the door lock is released by a coupling, not shown, of the reversing lever 10 with a non-illustrated motor vehicle door lock, provided that it is not locked. As a result, the motor vehicle door, not shown, can be opened.

At the free end opposite the pivot bearing 23, the handle 20 has a handle hook 21, which in FIG. 4 is shown in an enlarged section. At the free end of the handle hook 21 laterally projecting coupling pins 22 are arranged, which einliegen in corresponding recesses 13 on the lever 10, as shown in particular in the enlarged view FIG. 5 is recognizable.

The reversing lever 10 is kinematically coupled by the engaging in corresponding recesses 13 on the lever 10 coupling pin 22 with the end of the handle hook 21 on the handle 20. This means that by a displacement of the handle 20 from the rest position according to Fig. 1 and 2 in the operating position according to Fig. 3 on the kinematic coupling at the same time the lever 10 about its axis of rotation 11 around from the rest position according to Fig. 1 and 2 in the operating position according to Fig. 3 is relocated.

The reversing lever 10 is connected via a Bowden cable, not shown, with a door lock, not shown, of a motor vehicle door. In the displacement of the reversing lever 10 by rotation about its axis of rotation 11 in the operating position according to Fig. 3 If the door lock is not completed, the lock is released and the opening of the motor vehicle door, not shown, is made possible.

The handle 20 is in turn rotatably mounted about its axis of rotation 23 in a handle housing, not shown. The rotation axis 23 thus forms a pivot bearing for the handle, which is usually arranged in the front in the installation situation in the motor vehicle, while the free end of the handle 20, which carries the handle hook 21, is usually arranged in the rear in the installation situation in the motor vehicle. However, the arrangement within the motor vehicle is arbitrary.

Fig. 4 shows a perspective view of an enlarged section of the handle hook 21 at the free end of the handle 20. On the handle hook 21 is placed on the guide member 30, which has optimized sliding properties and forms a guide for the handle 20, whereby the tilting play of the handle 20 is minimized.

The guide member 30 is U-shaped and engages around the handle hook 21 form-fitting from three sides.

At the upper end of the handle hook 21 can be seen the coupling pin 22, the coupling of the handle hook with the in Fig. 4 Serve not shown lever 10. This coupling is recognizable in Fig. 5 showing a perspective view of an enlarged detail of the vehicle door handle assembly with the handle hook in the installation situation in engagement with the lever 10th

As in Fig. 4 can be seen, the guide element 30 in its contour adapted receiving areas 33, which the coupling pin 22nd engage around and thereby form a sliding area for coupling with the lever. The receiving areas 33 on the guide element 30 thus simultaneously form bearing shells for coupling pins 22 of the handle hook 21. Running along the side edges in the longitudinal direction, the guide element 30 has longitudinal ribs 31. The guide element 30 is symmetrical. Accordingly, the guide element also has a longitudinal rib 31 on the rear side, which is not visible in the illustration. By the longitudinal direction is meant the direction corresponding to the direction of movement of the handle hook 21 in the displacement from the rest position to the operating position and vice versa.

The procedure of mounting the guide member 30 on the handle hook 21 is based Fig. 4 First, the guide member 30 is inserted with its bearings 33 via the coupling pin 22, as indicated by the arrow 41. Subsequently, about the axis of the coupling pin 22 around a pivoting of the guide member 30, as indicated by the arrow 42. In this case, the guide member 30 is pushed onto the handle hook 21 until the arranged on the handle hook 21 locking lugs in the recesses 32 in the guide member 30 engage and engage. In Fig. 4 It can be seen that the guide element 30 engages around the grip hook 21 in a form-fitting manner and thus simultaneously forms a sliding shoe. The guide member 30 is positively secured to the handle hook 21. The arranged on the handle hook latching lugs are engaged in the recesses 32 in the guide member 30. Thus, the guide member 30 is latched to the handle hook 21.

The guide element 30 is formed by a plastic having optimized sliding properties. In the illustrated embodiment, the guide member 30 is formed by polyoxymethylene. In contrast, the handle 20 and the handle hook 21 are formed by a fiber-reinforced polyamide. Compared to this material polyamide, the guide member 30 made of polyoxymethylene improved sliding properties.

By arranged on the sides of the guide member 30 ribs 31, an optimal guidance of the handle 20, if this from the rest position according to the FIGS. 1 and 2 in the operating position according to Fig. 3 is shifted and vice versa.

In Fig. 5 It can be seen that this rib 31 slides and is guided along the profile of the handle housing 50 in a corresponding guide profile in the motor vehicle door handle housing.

Furthermore, in Fig. 5 recognizable in the installation situation, as the guide member 30 engages with the partially cylindrical receptacle 33 on the one hand, the coupling pin 22 of the handle hook 21 and at the same time forms a sliding surface in the recesses 13 of the reversing lever 10. Furthermore, in Fig. 5 in turn recognizable the recesses 32 in the guide member 30, in which engage the locking lugs on the handle hook 21 and thereby secure the guide member 30 to the handle hook.

The guide member 30 thus on the one hand provides a sliding element in the coupling between the coupling pin 22 and recesses 13 in the kinematic coupling of handle hook 21 and lever 10. Furthermore, the guide member 30 forms a handle hook 21 encompassing shoe. The guide member 30 has lateral sliding ribs 31 which slide in corresponding recesses in the profile of the handle housing 50 along.

The bearing shells forming receptacles 33 for coupling with the reversing lever 10 and the sliding portion with the sliding rib 31 of the guide member 30 are integrally formed of plastic as a whole.

The attachment of the guide member 30, which forms a shoe for the handle hook 21, takes place positively by the bearing shells 33 engage around the coupling pin 22 at the upper end of the handle hook 21 and at the lower end of a clipping of the guide member 30 by engage corresponding detents on the sides of the handle hook 21 in the recesses 32 in the guide member 30.

The arrangement of the guide ribs 31 on the sides of the guide member 30, an improved guidance of the handle 20 is generated, whereby the tilting clearance of the pivot bearing 23 of the handle 20 is compensated.

Fig. 6A shows an enlarged detail of the side view of the coupled with the lever 10 handle hook 21. Again, one of the bearing shells 33, which is arranged in the coupling between the coupling pin 22 on the handle hook 21 and the corresponding receiving portion 13 on the lever 10 in the region. Furthermore, the grip element 21 encompassing guide element 30 in the side view according to Fig. 6A recognizable. In Fig. 6B is the section VI-VI after Fig. 6A reproduced from the particular of the interaction of outer ribs 31 and the corresponding profile in the handle housing 50 can be seen.

The assembly of handle 20 with handle hook 21 and lever 10 is based on the FIGS. 7 to 9 explained.

Fig. 7 shows an enlarged section of a top view from above of the arrangement prior to insertion of the handle hook 21 with the coupling pin 22 together with the bearing shells 33 in the corresponding recesses 13 of the reversing lever 10. For this purpose, the handle hook 21 with already pre-assembled guide member 30 as shown in FIG Fig. 8A pushed from below into the arrangement, and then accordingly Fig. 8B used in the receiving area 13 on the lever.

In Fig. 9 the installation situation is shown after installation, in which the coupling pins 22 surrounded by the bearing shells 33 engage in the receiving areas 13 of the reversing lever 10.

Characterized in that the guide member 30 is formed of a different material than the handle 20 with the handle hook 21, a good sliding pair is formed, whereby unwanted noise during operation of the handle 20 are reliably prevented.

For the handle 20 and the handle hook 21, a fiber-reinforced polyamide material is used in the illustrated embodiment, wherein such a glass fiber reinforced plastic has only insufficient sliding properties. For this reason, the guide member 30 is formed of polyoxymethylene which has better sliding properties than the glass fiber reinforced polyamide material of the handle 20.

By the guide member 30 is thus simultaneously a guide relative to the lever 10 realized by the guide member 30 with the bearing shells 33, the coupling pin 22 of the handle hook 21 engages and rests in the recesses 13 of the reversing lever 10. At the same time, the guide member 30 forms a lateral guide relative to the handle housing 50, whereby the tilting clearance of the pivot bearing 23 of the handle 20 is compensated. This results in a more pleasant feel for the user.

Characterized in that the guide member 30 forms both the coupling region between the coupling pin 22 and receptacle 13, that is the coupling region of the kinematic coupling between the handle hook 21 and lever 10, and at the same time a guide of the handle hook 21 relative to the handle housing 50 are kinematic couplings at all points optimized sliding pairings arranged in all guide areas.

Claims (12)

1. Motor vehicle door handle with a handle housing (50), a bell crank (10) and a handle (20) which is arranged in the handle housing and by rotating about an axis of rotation (23) can be moved from a rest position into an operating position, wherein a handle hook (21) arranged on the rear side of the handle (20) at the free end is kinematically coupled with a bell crank (10), wherein during the movement from the rest position into the operating position, the bell crank (10) acts directly or indirectly on a motor vehicle door lock in order to actuate a release of the lock and facilitate an opening of the motor vehicle door, wherein the handle hook (21) comprises at least one guide element (30), by means of which the handle hook (21) is guided into a corresponding profile of the handle housing, wherein the guide element (30) is form-fitting with the handle hook (21), characterised in that the handle hook (21) comprises laterally projecting coupling pins (22) at its free end which are inserted into corresponding recesses (13) on the bell crank (10), wherein the guide element (30) at least partially surrounds the coupling pins (22) in a form-fitting manner.
2. Motor vehicle door handle according to claim 1, characterised in that the guide element (30) is configured as a U-profile which is pushed over the handle hook (21) from one side.
3. Motor vehicle door handle according to claim 1 or 2, characterised in that the guide element (30) comprises catches which engage in undercuts and/or recesses in the handle hook (21).
4. Motor vehicle door handle according to any one of the preceding claims, characterised in that the handle hook (21) comprises catches which engage in undercuts and/or recesses (32) and/or openings in the guide element (30).
5. Motor vehicle door handle according to any one of the preceding claims, characterised in that the guide element (30) comprises longitudinally extending positive guide profiles (31) on the outer side which interact with negative guide profiles in the profile of the handle housing (50) leading to the handle hook (21).
6. Motor vehicle door handle according to any one of the preceding claims, characterised in that the guide element (30) comprises longitudinally extending negative guide profiles on the outer side which interact with positive guide profiles in the profile of the handle housing (50) leading to the handle hook.
7. Motor vehicle door handle according to any one of the preceding claims, characterised in that the handle (20) and the handle hook (21) are formed in one piece, in particular from fibre-reinforced polyamide.
8. Motor vehicle door handle according to any one of the preceding claims, characterised in that the guide element (30) is formed from plastic, in particular polyoxymethylene.
9. Motor vehicle door handle according to any one of the preceding claims, characterised in that the bell crank (10) and/or the handle (20) of the motor vehicle handle are spring-loaded in the direction of the rest position.
10. Motor vehicle door handle according to any one of the preceding claims, characterised in that the bell crank (10) is coupled with the motor vehicle door lock via a push rod and/or a pull rod and/or a cable, whereby with an unlocked motor vehicle door lock, the rotation of the bell crank (10) in its operating position actuates the opening of the motor vehicle door lock.
11. Motor vehicle door handle according to any one of the preceding claims, characterised in that the bell crank (10) comprises at least one catch element which, when an external impulse occurs as a result of a side impact, engages in an accident lock and blocks a movement of the bell crank (10) and the handle (20) from the rest position to its operating position.
12. Motor vehicle door handle according to claim 11, characterised in that the accident lock is formed by one or a plurality of circular discs comprising recesses which in its rest position facilitates a swinging of the bell crank (10) into the release position while a catch arranged on the bell crank (10) enters a recess of the circular disc, wherein in the event of an external impulse, the circular disc is twisted into a blocking position by inertial masses which engage on corresponding tappets on the circular disc so that the bell crank (10) is thus blocked and the door lock cannot be accidentally released.

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