阅读说明：本技术 用于机动车前照灯的调整装置 (Adjusting device for a motor vehicle headlight ) 是由 D.卡斯特纳 R.莱昂哈茨伯格 于 2019-08-27 设计创作，主要内容包括：本发明涉及一种用于调整机动车前照灯的光学上相关的构造单元的调整装置,该调整装置包括驱动装置和调节元件,其中该调节元件具有螺纹区段,其中,调整装置包括导引容纳部以及带有与螺纹区段对应的配对螺纹的导引部件,其中,调节元件借助于导引部件以能旋转的和能移动的方式支承在导引容纳部中,并且其中,调节元件具有至少一个突伸的突出部并且导引容纳部具有第一止挡和与该第一止挡对应的第二止挡,以便沿着移位轴线限定调节元件的行程,并且其中,调节元件至少部分容纳在传递元件的开口中,其中,传递元件具有弹性的簧片,弹性的簧片布置在开口的圆周上,其中,弹性的簧片具有突出部,突出部设置用于,嵌接到布置在调节元件上的凹部中。(The invention relates to an adjusting device for adjusting an optically relevant construction unit of a motor vehicle headlight, comprising a drive device and an adjusting element, wherein the adjusting element has a threaded section, wherein the adjusting device comprises a guide receptacle and a guide part with a mating thread corresponding to the threaded section, wherein the adjusting element is mounted in the guide receptacle in a rotatable and movable manner by means of the guide part, and wherein the adjusting element has at least one projecting projection and the guide receptacle has a first stop and a second stop corresponding to the first stop in order to define a stroke of the adjusting element along a displacement axis, and wherein the adjusting element is at least partially accommodated in an opening of a transmission element, wherein the transmission element has elastic tongues, which are arranged on the circumference of the opening, the spring leaf has a projection which is provided for engaging in a recess arranged on the adjusting element.)

1. Adjusting device (100) for adjusting an optically relevant construction unit of a motor vehicle headlight, comprising the following parts:

-a drive device (150) with a transmission element (200) supported in a rotatable manner about a displacement axis (X),

-an adjusting element (300) in mechanical engagement with the transmission element (200) by means of a connection, wherein the adjusting element (300) has a threaded section (350) and is also provided for acting on the optically relevant construction unit by means of a coupling element (360), and

a guide receptacle (500) and a guide part (400) arranged in the guide receptacle (500) and having a counter thread (410) corresponding to the thread section (350), wherein the adjusting element (300) is rotatably and movably supported in the guide receptacle (500) by means of the guide part (400) arranged on the thread section (350), which guide part is provided in conjunction with the thread section (350) for converting a rotational movement of the transmission element (200) into a sliding movement along a displacement axis (X),

it is characterized in that the preparation method is characterized in that,

the adjusting element (300) has at least one projection (310) projecting in a radial direction relative to a displacement axis (X) and the guide receptacle (500) has a first stop and a second stop (510, 520) corresponding thereto, wherein the projection (310) and the first and second stops (510, 520) are provided for limiting the stroke of the adjusting element (300) along the displacement axis (X).

2. Adjustment device according to claim 1, characterized in that the adjusting element (300) is at least partially accommodated in a substantially circular opening (210) of the transmission element (200) arranged concentrically to the displacement axis, wherein the transmission element (200) has a resilient spring leaf (250) as an anti-rotation mechanism, which resilient spring leaf is arranged on the circumference of the substantially circular opening (210) and extends along the displacement axis (X), wherein the resilient spring leaf (250) has a projection (260) which is provided for engagement in a corresponding recess (320) arranged on the adjusting element.

3. Adjustment device according to claim 1 or 2, characterized in that the projection (260) is designed in the form of an axis-parallel tenon and the recess (320) corresponding thereto is designed as an axis-parallel groove.

4. The adjusting apparatus according to any of claims 1 to 3, characterized in that the guide part (400) is arranged in the guide receptacle (500) in a releasable manner.

5. The adjusting apparatus according to one of claims 1 to 4, characterized in that the drive (150) is configured as a mechanical motor, preferably as a bevel gear.

6. The adjusting apparatus according to one of claims 1 to 4, characterized in that the drive apparatus (150) is configured as an electric motor.

7. The adjustment device according to any one of claims 1 to 6, characterized in that the coupling element (360) is formed by a ball arranged concentrically to the displacement axis (X).

8. The adjustment device according to any one of claims 1 to 7, characterized in that the coupling element (360) is configured as a screw which can be loosened from the adjustment element (300).

9. Motor vehicle headlight with a housing and at least one optically relevant construction unit and with at least one adjusting device according to one of the claims 1 to 8.

10. Motor vehicle headlight according to claim 9, characterized in that the guide part (400) is arranged immovably with reference to a housing of the motor vehicle headlight.

11. Motor vehicle headlight according to claim 9 or 10, characterized in that a guide part (500) is firmly connected with a housing of the motor vehicle headlight.

Technical Field

The invention relates to an adjusting device for adjusting an optically relevant construction unit of a motor vehicle headlight, comprising the following parts:

-a drive device with a transmission element supported rotatably about a displacement axis (Verschubachse);

an adjusting element which is in mechanical engagement with the transmission element by means of a connection, wherein the adjusting element has a threaded section and is also provided for acting on an optically relevant construction unit by means of a coupling element, and

a guide receptacle and a guide part arranged therein with a mating thread corresponding to the thread section, wherein the adjusting element is rotatably and movably supported in the guide receptacle by means of a guide part which can be mounted on the thread section, the guide part being provided in conjunction with the thread section for converting a rotational movement of the transmission element into a displacement movement along the displacement axis.

Background

In order to regulate the light pattern produced by the headlight in accordance with regulations, it is necessary to be able to additionally regulate one or more optically relevant building elements of the headlight in the height direction and/or in the lateral direction. Such an associated optical component unit is, for example, a light module, for example, composed of at least one light source, at least one reflector, at least one lens, etc.; but may also refer to individual components, such as reflectors, lenses, etc., which can be adjusted accordingly.

In this case, at least one optically relevant construction unit is often mounted in the headlight so as to be pivotable about one or more axes, for example about a horizontal and/or vertical axis. One or more light modules are supported, for example, on a carrier frame, and this carrier frame is supported in a pivotable manner about one or two axes, as explained above.

Adjusting devices for adjusting optically relevant components of a motor vehicle headlight, such as light sources, reflectors and/or lenses, allow the light pattern generated by the headlight to be adapted to predetermined requirements. This allows deviations from the target setpoint parameters (solvorgabe) to be compensated for later by using the adjusting device, for example, as determined after the installation of the headlights into the motor vehicle.

A typical task of the adjusting device is to adapt the illumination distance of the headlights, wherein this technical field is known in particular under the expression "illumination distance adjustment", abbreviated LWR.

For the adjustment, at least one drive device is usually provided, wherein the drive device can usually be actuated manually, which drive device comprises, for example, a rotary wheel or an adjusting screw, whose rotary movement is converted by suitable means into a linear movement of a sliding element, which is guided in a movable manner in a corresponding slide rail in the headlamp housing. The displacement points of the optically relevant construction units, for example of the carrier frame, on which the construction units are mounted, are mounted in the sliding element, so that when the sliding element is displaced, the construction units or the carrier frame are pivoted.

Disclosure of Invention

The object of the present invention is to provide an improved adjusting device for adjusting an optically relevant construction unit of a motor vehicle headlight.

This object is achieved in that the adjusting element has at least one projection projecting in a radial direction relative to the displacement axis and the guide receptacle has a first stop and a second stop corresponding to the first stop, wherein the projection and the first and second stops are provided for limiting the stroke of the adjusting element along the displacement axis.

The adjusting element can advantageously be accommodated at least partially in a substantially circular opening of the transmission element, which opening is arranged concentrically to the displacement axis, wherein the transmission element has a resilient spring leaf (Zunge), which is arranged on the circumference of the substantially circular opening and extends along the displacement axis, as an anti-rotation mechanism (Ü berdrehschutz), wherein the resilient spring leaf has a projection which is provided for engaging in a corresponding recess arranged on the adjusting element.

As already mentioned, the connection connecting the transmission element and the adjusting element is provided for converting a rotational movement of the transmission element into a displacement movement of the adjusting element relative to the transmission element along the displacement axis.

The actuating element acts on the optically relevant construction unit in such a way that a movement of the actuating element can be converted into a changing orientation of the optically relevant construction unit. The optically relevant structural elements can be, for example, diaphragms (components), light sources, reflectors, lenses, entire light modules or component groups, etc. It is also possible for the optically relevant construction unit to be accommodated in the adjustment mechanism, for example in a pivotably mounted support frame. The expression "actuating element is provided to act on an optically relevant construction unit" therefore also refers to an assembly in which the actuating element acts indirectly, for example via an adjusting mechanism, on the optically relevant construction unit.

The maximum and minimum travel of the adjusting element along the displacement axis relative to the transmission element is defined by at least one projection arranged on the adjusting element and two stops corresponding thereto, which are arranged on the guide element.

The guide element is designed to be separated from the remaining components of the adjusting device and is fixed with respect to the drive, for example on the motor vehicle headlight housing.

In contrast, in order to achieve the desired change in the stroke length of the adjusting element to be implemented, only the guide element needs to be replaced, while the components of the adjusting device are usually kept unchanged.

Furthermore, it can be provided that the movement of the adjusting element along the displacement axis is finely calibrated by the pitch of the thread sections of the adjusting element and the corresponding counter-threads of the guide parts, i.e. that a separate guide part is provided for each specific pitch of the adjusting element.

For this purpose, it can be provided that the guide element is arranged in a releasable manner in the guide receptacle.

This has the advantage that the adjustment device remains variable in view of the fine alignment described above, i.e. different adjustment elements and corresponding guide parts can be combined with the guide elements.

In other words, the transmission ratio of the rotary movement of the drive is determined by the thread pitch of the adjusting element and of the guide part corresponding thereto, and this transmission ratio can be variably changed as described above by simply replacing the adjusting element and the guide part without having to change other components of the adjusting device.

As already mentioned above, the adjustment device is provided for acting on the optically relevant construction unit. For this purpose, the adjusting element has a coupling element which is preferably designed as a ball head arranged concentrically to the displacement axis.

For this purpose, a connecting part can be further provided between the coupling element of the actuating element and the optically relevant construction unit to be adjusted, wherein the connecting part can be configured separately from the optical construction unit.

By means of the invention, a particularly robust and finely calibrated adjustment device is obtained, which can be implemented cost-effectively and minimizes the forces occurring in the adjustment device as far as possible.

The projections can advantageously be designed in the form of axially parallel pins (Zapfen) and the recesses corresponding thereto can be designed as axially parallel grooves.

It may be advantageous if the drive is designed as a mechanical motor, preferably as a bevel gear mechanism (Winkelgetriebe).

It may also be advantageous if the drive is designed as an electric motor.

The coupling element may advantageously be formed by a ball head arranged concentrically to the displacement axis.

It can be provided that the coupling element is configured as a screw which can be released from the adjusting element.

The object is also achieved by a motor vehicle headlight having a housing and at least one optically relevant construction unit and at least one adjusting device.

It can be advantageously provided that the guide element is arranged stationary with respect to the housing of the motor vehicle headlight.

It may be particularly advantageous if the guide receptacle is firmly connected to the housing of the motor vehicle headlight.

Drawings

The invention is explained in detail below with the aid of exemplary figures. Shown in the attached drawings:

fig. 1 is a perspective view of an adjusting device for adjusting an optically relevant construction unit of a motor vehicle headlight;

FIG. 2 is an exploded view of the adjustment device of FIG. 1;

FIG. 3 is a lateral cross-section of the adjustment device of FIG. 1;

FIG. 3a is a cross-section along the cutting plane B-B of FIG. 3;

FIG. 4 is a perspective view of another example of an adjustment device with a motor as a drive device; and is

Fig. 5 is another perspective view of the example of fig. 4.

Detailed Description

However, the optically relevant construction unit can in principle be a part of a motor vehicle headlight or of a lighting unit, for example a reflector, a lens, a light source, a diaphragm assembly or the like, or the optically relevant construction unit can comprise one or more such components or one or more lighting units on a common pivotable carrier.

For the sake of simplicity, a light module is assumed hereinafter as the optically relevant building element.

As can be seen in particular from fig. 1 to 3, the adjusting device 100 comprises an adjusting element 300, which is preferably designed as an adjusting lever, wherein the adjusting element 300 is connected to a connecting part 600, which serves as a mechanical connection between a coupling element 360 of the adjusting element 300 and the optically relevant structural unit to be adjusted, wherein the connecting part 600 is designed as a separate component from the optical structural unit, which is not shown in the figures.

In the embodiment shown in the figures, the connecting part 600 has an articulated section to which the adjusting element 300 is connected in an articulated manner by means of its coupling element 360 in the form of a ball head.

The drive device 150, which can preferably be mounted on the headlamp housing, can be actuated manually, for example, and comprises, in the exemplary embodiment shown in the drawings, an adjusting screw 700, the rotational movement of which is converted in a known manner into a rotational movement of the mounted transmission element 200 so as to be rotatable about the displacement axis X.

The transfer element 200 also has an opening 210 into which the adjustment element 300 is partially inserted. Due to the cross-sectional configuration of the opening 210 of the transmission element 200 and of the corresponding section of the adjusting element 300 which corresponds thereto, the adjusting element 300 can be rotated about the displacement axis X, i.e. during a rotational movement of the transmission element 200, the adjusting element 300 is likewise rotated.

For this purpose, the transmission element has a resilient spring plate 250, which is arranged on the circumference of the essentially circular opening 210 and extends along the displacement axis X, wherein the resilient spring plate 250 has a projection 260, which is provided for engaging in a corresponding recess 320 arranged on the adjusting element.

The projection 260 can be designed, for example, in the form of a tenon parallel to the axis X of displacement and the corresponding recess 320 can be designed in the form of an axially parallel groove, as shown in fig. 1 and 2.

Fig. 3a shows a cross section through the sectional plane B-B of fig. 3 of the above-described mechanical connection between the adjusting element and the transmission element.

In the assembled state, the adjusting element 300 is arranged in the opening 210 of the transmission element 200, wherein the projection 260 engages into the recess 320 in such a way that a movement of the adjusting element 300 relative to the transmission element 200 along the displacement axis X is possible.

The rotational movement of the transmission element 200 about the displacement axis X is transmitted via the projection 260 to the adjusting element 300 by means of the recess 320, provided that the torque transmitted in this case does not exceed a maximum limit torque.

If, for example, a maximum travel of the adjusting element 300 with respect to the transmission element 200 is reached, then an overload of the connected machines can be prevented in that, from a defined torque, the elastic tongues 250 deform in such a way that the projections 260 slide out of the corresponding recesses 320 and a "slip" (Durchdrehen) of the transmission element 200 with respect to the adjusting element 300 is achieved.

Furthermore, the adjusting element 300 has a thread section 350, by means of which the adjusting element 300 is mounted rotatably about its longitudinal axis or displacement axis X together with a guide part 400 having a counter thread 410 corresponding to the thread section 350 of the adjusting element 300, wherein the guide part 400 is arranged in the guide receptacle 500 in a stationary manner with respect to the drive device 150.

The guide part 400 is fastened to the guide receptacle 500 in the exemplary embodiment shown in the figures in a releasable or exchangeable manner.

The guide receptacle 500 is firmly connected to the headlight housing, for example, and is screwed in, for example, by means of screws.

Furthermore, the guide receptacle 500 has a first and a second stop 510, 520, which, in conjunction with two projections 310 arranged on the adjusting element 300 and projecting radially with respect to the displacement axis X, delimit a displacement movement of the adjusting element 300 along the displacement axis X.

Fig. 4 shows a further exemplary embodiment of an adjusting device in a perspective view with an electric motor as the drive 150, wherein the remaining features essentially correspond to the example of fig. 1 to 3 a.

Fig. 5 shows an embodiment of the adjusting device of fig. 4 in a further perspective view.

List of reference numerals

100 adjustment device

150 driving device

Axis of X displacement

200 transfer element

210 opening

250 elastic reed

260 projection

300 adjustment element

310 projection

320 recess

350 thread section

360 coupling element

400 guide part

410 mating threads

500 guide accommodation part

510. 520 first and second stops

600 connecting part

700 adjusting the screw.