Interior trim device for interior of motor vehicle, and motor vehicle

Abstract

The invention relates to an interior trim device for an interior of a motor vehicle, comprising a light guide (3) which is designed to guide light and which has a visible side (4) and a rear side (5) opposite the visible side (4), light being coupled out of the light guide (3) via the visible side (4) in a specified installation position of the interior trim device, and light being coupled out of the rear side (5) via the rear side (5) in a specified installation position of the interior trim device. The visible side (4) of the light guide (3) is visible in the interior space, the light guide (3) has at least one fastening element (7) on the rear side (5), by means of which a light pattern coupled out on the visible side (4) is preset; and a motor vehicle component on which the light conductor (3) is held by means of a fastening element (7).

Description

Technical Field

[0001] The invention relates to an interior decoration device for the interior space of a motor vehicle and to a motor vehicle. Background Art

[0002] DE 10 2020 113 260 A1 discloses an ambient light device for a selector wheel switch device. The ambient light device comprises a printed circuit board connected to a main housing. In addition, the ambient light device comprises a light source fixed to the circuit board and a light guide, which is connected to the main housing and is configured in such a way that it outputs light from the light source. In addition, the ambient light device comprises a light-emitting mechanism, which is arranged in a switch selector wheel rotatably connected to the main housing and is configured in such a way that it reflects light from the light source output via the light guide, so that light is emitted outside the switch selector wheel in the form of ambient light.

[0003] Furthermore, CN 114060502A discloses an electronic shifting device with a button assembly.

[0004] Furthermore, FR 2 835 961 B1 discloses an operating element for a motor vehicle, which has a rotatable handle with a display window that can be illuminated via a light guide connected to a light source. The display window is illuminated with light of a first color in a first angular section of the handle and with light of a second color in a second angular section. Summary of the invention

[0005] The object of the present invention is to provide a solution which allows a particularly simple arrangement of the optical waveguide in the interior of a motor vehicle.

[0006] According to the invention, this object is achieved by an interior equipment for the interior of a motor vehicle according to the invention and a motor vehicle according to the invention. The features, advantages and possible configurations explained within the scope of the description for one of the interior equipment and the motor vehicle are to be regarded at least analogously as features, advantages and possible configurations of the other.

[0007] The present invention relates to an interior equipment for the interior space of a motor vehicle, in particular an automobile, in particular a passenger car. Therefore, the interior equipment is set up to be arranged in the interior space of the motor vehicle. Here, the interior equipment is at least partially visible in the interior space of the motor vehicle. The interior equipment includes a light conductor configured to guide light. A transparent component (such as a fiber, a tube or a rod) that transmits light via a short or long distance is called a light conductor. The light conductor has a visible side and a rear side opposite to the visible side. In the prescribed installation position of the interior equipment in the interior space of the motor vehicle, light is coupled out from the light conductor via the visible side. In addition, in the prescribed installation position, the visible side of the light conductor is visible in the interior space. Thus, it is not arranged that the light emitted from the light conductor can only reach the eyes of the vehicle occupants of the motor vehicle via reflection at the surface in the motor vehicle. Instead, it is arranged that the light coupled out from the light conductor via the visible side can reach the eyes of the vehicle occupants sitting on the corresponding vehicle seats directly in the motor vehicle and thus without an additional reflection step. It is provided that the optical waveguide has at least one fastening element on the rear side, the structure of which fastening element specifies a light pattern that is coupled out on the visible side.

[0008] In addition, the interior equipment includes a motor vehicle component, and the optical conductor is held at the motor vehicle component via a fastening element. This means that the motor vehicle component is used to support the optical conductor. According to the design of the at least one fastening element, the fastening element is provided by a material accumulation of the optical conductor, which leads to a greater thickness of the optical conductor in the region of the at least one fastening element, or the fastening element is provided by at least one recess, whereby the optical conductor has a smaller thickness in the region of the fastening element than in the adjacent region. Depending on whether the corresponding fastening element is provided by a protrusion or a recess at the rear side of the optical conductor, a corresponding influence on the light pattern coupled out at the visible side is exhibited. In particular, by selecting the shape of the fastening element, the number of fastening elements to be provided, and the position of the corresponding fastening element at the rear side, the light pattern coupled out from the optical conductor at the front side can be set in a targeted manner. Thus, at least one fastening element is used on the one hand to fasten the optical conductor to the motor vehicle component, and on the other hand to influence the design of the light pattern emitted from the optical conductor. Since at least one fastening element is arranged at the rear side of the optical conductor, the optical conductor can be fastened to the motor vehicle component particularly simply, and the interior equipment can be manufactured particularly simply. Furthermore, the described interior arrangement makes it possible to provide a lighting design in the vehicle interior with particularly few components, since the optical waveguide is designed to directly provide an outcoupled light pattern for viewing by the vehicle occupants and no additional surfaces are required for reflecting light to achieve indirect lighting.

[0009] In a possible development of the invention, it is provided that a plurality of identical fastening elements arranged at regular intervals from one another are provided on the rear side of the optical waveguide, whereby in the prescribed installation position the light pattern coupled out on the visible side has a regular structure. On the one hand, a particularly secure holding of the optical waveguide on the motor vehicle component can be ensured by means of the plurality of fastening elements arranged at regular intervals, and on the other hand, a particularly regular appearance of the light pattern coupled out on the visible side can be achieved. By means of the appearance of the light pattern caused by the plurality of fastening elements arranged at regular intervals, the motor vehicle component on which the optical support is held can be at least partially covered, if necessary. As a result, when observing the visible side of the optical waveguide, it is very difficult or even impossible to see the motor vehicle component through the optical waveguide.

[0010] In another possible embodiment of the invention, it is provided that the optical waveguide is constructed in one piece. The optical waveguide is thus made of one piece and thus consists of only one component. This makes it possible to manufacture the optical waveguide particularly simply and quickly, since tolerances of the multiple components relative to one another do not occur or have to be compensated for. For example, the optical waveguide can be injection molded in one piece. Thus, the fastening element of the optical waveguide consists of the same material as the rest of the optical waveguide. In addition, due to the one-piece structure, a particularly regular light guiding can be achieved in the optical waveguide, since no boundary surfaces are present in the optical waveguide.

[0011] In another possible design of the present invention, it is provided that the interior equipment is constructed as a knob-operating device. For example, a motor vehicle function of a motor vehicle can be controlled by means of the knob-operating device. User input can be performed by a vehicle occupant of the motor vehicle, especially a driver of the motor vehicle, via the knob-operating device. It is provided that the optical conductor is constructed as a rotating element, which can be rotated by the vehicle occupant around the rotation axis to perform user input. It is also provided that the motor vehicle component is a rolling bearing that can rotate around the rotation axis. It is also provided that at least one fastening element is a squeeze rib, and the rotating element inserted into the rolling bearing is frictionally matched with the rolling bearing via the squeeze rib, whereby the rotating element is connected to the rolling bearing in a rotationally fixed manner. The squeeze rib is set up so that it deforms, whereby these squeeze ribs can be reliably and via the largest possible contact surface against the rolling bearing. In addition, the squeeze rib generates friction between the optical conductor and the motor vehicle component, especially the rolling bearing, whereby the knob is fixed in its position relative to the rolling bearing. The squeeze rib is a fast and cost-effective method for fastening the knob to the rolling bearing. As the squeeze rib, for example, a semicircular rib with a radius of about 0.8 mm can be used. Thus, the squeeze ribs enable a particularly simple and reliable centering of the knob on the rolling bearing and a particularly reliable retention of the knob on the rolling bearing. In addition, the corresponding squeeze ribs enable at least substantially strip-shaped structuring of the light pattern coupled out from the optical waveguide at the visible side.

[0012] In this regard, it can be provided in particular that the rotating element has a plurality of extrusion ribs which are arranged on the circumference at regular intervals around the rotation axis. The plurality of extrusion ribs achieve a particularly large frictional contact between the rotating element and the rolling bearing, whereby the rotating element is particularly reliably held on the rolling bearing. In addition, the regularly distributed arrangement of the extrusion ribs on the circumference of the rotating element achieves a reliable centering of the rotating element relative to the rotation axis. As a result, an undesired eccentric arrangement of the rotating element relative to the rotation axis of the rolling bearing can be prevented. In particular, it can be provided that the rotating element has approximately 32 extrusion ribs which are arranged on the circumference of the rotating element at regular intervals around the rotation axis.

[0013] In another possible design of the present invention, it is provided that at least one squeeze rib extends with its longitudinal extension direction in the axial direction of the rotation axis. This means that the squeeze rib extends with its longitudinal extension direction parallel to the rotation axis. As a result, a strip structure of the light pattern coupled out on the visible side with strips extending parallel to the rotation axis is obtained. With this design, the vehicle occupants can intuitively and particularly easily see where the rotation axis around which the rotary element rotates to control the motor vehicle function extends. As a result, the driver can concentrate particularly well on the control of the motor vehicle when operating the knob-operating device, thereby achieving particularly high traffic safety.

[0014] In another possible design of the present invention, it is arranged that the cross section of at least one extruded rib is selected according to the light pattern that should be generated at the visible side in the installation position according to the regulations. The hard transition of the connection of the at least partially circular cross section of the extruded rib and the residual wall thickness of the optical waveguide leads to the clearly separated lines in the structure of the light pattern coupled out at the visible side. By selecting the soft transition from the at least partially circular cross section of the corresponding extruded rib to the residual wall thickness of the optical waveguide, these lines of the structure of the light pattern can be softened and thus merged with the remaining light pattern. In addition, via the corresponding width of the extruded rib, especially the diameter of the at least partially circular cross section of the corresponding extruded rib, the width of the corresponding strip of the light pattern at the visible side can be selected. The luminous intensity of the corresponding strip in the light pattern can be set by selecting the corresponding depth of the cross section of the corresponding extruded rib, or via the radius of the at least partially circular cross section. In other words, the cross section of the corresponding extruded rib is selected so that the preset structure of the light pattern at the visible side can be realized when used according to the regulations. Thus, for example, the following structure of the light pattern can be realized, which realizes a particularly good covering of the motor vehicle parts covered at least partially by the optical waveguide.

[0015] The invention further relates to a motor vehicle, in particular an automobile, in particular a passenger car, having an interior arrangement as has already been described in conjunction with the interior arrangement according to the invention. In this case, the visible side of the light conductor is arranged facing the interior and the visible side of the light conductor is not completely covered by a motor vehicle component of the motor vehicle toward the interior. This means that at least one region of the visible side of the light conductor is directly visible to a vehicle occupant of the motor vehicle. As a result, a light pattern can be provided in a motor vehicle with particularly few components. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Further features of the invention are apparent from the following description of the drawings and from the drawings. The features and feature combinations mentioned above in the description and the features and feature combinations shown individually in the following description of the drawings and / or in the drawings may be used not only in the respectively described combination but also in other combinations or alone without departing from the scope of the invention.

[0017] In the figure:

[0018] Figure 1 shows a schematic perspective view of a knob-operated device;

[0019] Figure 2 A schematic cross-sectional view showing a light conductor of a knob-operated device in a first embodiment; and

[0020] Figure 3 A schematic sectional view of a light guide body is shown in a second embodiment.

[0021] In the figures, identical or functionally identical elements are provided with the same reference symbols. DETAILED DESCRIPTION

[0022] exist Figure 1 , a knob-operating device 1 is shown. The knob-operating device 1 is an interior device for the interior space of a motor vehicle, in particular a car. The knob-operating device 1 is configured to receive user input from a vehicle occupant of the motor vehicle, wherein a vehicle function of the motor vehicle is controlled according to the received user input. The knob-operating device 1 includes a rotary switch 2, which has a rotating element, which is composed of an optical waveguide 3. The optical waveguide 3 is constructed in one piece and is constructed for guiding light. The optical waveguide 3 has a visible side 4 and a rear side 5 opposite to the visible side 4. In the prescribed installation position of the knob-operating device 1 in the motor vehicle, light is coupled out of the optical waveguide 3 via the visible side 4 of the optical waveguide 3. In addition, when the knob-operating device 1 is installed as specified, the visible side 4 of the optical waveguide 3 is visible in the interior space of the motor vehicle.

[0023] The rotary switch 2 is designed to be rotated by a vehicle occupant about an axis of rotation 6 for user input. In order to enable such a rotation of the rotary switch 2 about the axis of rotation 6, the rotary knob-operated device 1 includes, in addition to the rotary switch 2, a rolling bearing as a further motor vehicle component (not shown in the figure). The optical waveguide 3 is held on the rolling bearing. The rolling bearing is also rotatable about the axis of rotation 6. Since the rotary switch 2 is fixedly secured to the rolling bearing in a rotationally fixed manner, when the rotary knob-operated device 1 is actuated, the optical waveguide 3 and the rolling bearing are rotated together about the axis of rotation 6 for user input. The rotary switch 2 is fastened via the squeeze ribs 7 of the optical waveguide 3, in particular, to a ball bearing made of metal as a rolling bearing.

[0024] In order to ensure a particularly reliable rotationally fixed holding of the optical waveguide 3 on the rolling bearing, it is provided that the optical waveguide 3 has at least one fastening element, in particular a plurality of fastening elements, on its rear side 5. In the present case, the respective fastening element is designed as a squeeze rib 7. In the present case, a plurality of squeeze ribs 7 arranged at regular intervals from one another and designed identically in their dimensions are arranged on the rear side 5 of the optical waveguide 3. The squeeze ribs 7 extend with their longitudinal extension in the extension direction of the rotation axis 6.

[0025] exist Figure 2 and Figure 3 , the optical waveguide 3 is partially shown in a cross section extending perpendicularly to the rotation axis 6, wherein Figure 2 FIG. 4 shows an extruded rib 7 with a soft transition in a first embodiment, and FIG. Figure 3 FIG. 4 shows a second embodiment of the extruded rib 7 with a hard transition. Figure 2 and Figure 3 As can be seen particularly well in the figure, the optical waveguide 3 has a greater thickness in the region of the extruded ribs 7 than in the region adjacent to the extruded ribs 7. Due to this accumulation of material of the optical waveguide 3 in the region of the extruded ribs 7, the extruded ribs 7 influence the light scattering properties of the optical waveguide 3, so that due to the extruded ribs 7 a structuring of the light pattern coupled out of the optical waveguide 3 on the visible side 4 is visible on the visible side 4, which is dependent on the geometry and arrangement of the extruded ribs 7.

[0026] As in Figure 2 and Figure 3 As can be seen in the figure, the squeeze rib 7 has an at least substantially semicircular cross section. Since in the described rotary knob-operated device 1 the light pattern is provided by the optical waveguide 3 and the rotary switch 2 is also held on the rolling bearing via the squeeze rib 7 of the optical waveguide 3, the rotary knob-operated device 1 can be provided with particularly few components. In the described optical waveguide 3, no transparent baffle is provided which covers the optical waveguide 3 toward the interior of the motor vehicle. The optical waveguide 3 can be designed in particular in milky white. When used as intended, the optical waveguide 3 can provide light of different colors, in particular 30 different colors.

[0027] In general, the present invention shows an extruded rib-light conductor design.

[0028] Reference numerals list

[0029] 1 Knob - operating device

[0030] 2 Rotary switches

[0031] 3 Light conductor

[0032] 4 Visible side

[0033] 5 Rear

[0034] 6 Axis of rotation

[0035] 7 Extruded Ribs

Claims

1. An interior decoration device for the interior space of a motor vehicle, comprising - an optical waveguide (3) designed for guiding light, the optical waveguide having a visible side (4) and a rear side (5) lying opposite the visible side (4), wherein: In a specified installation position of the interior equipment, light is coupled out of the optical waveguide (3) via the visible side (4), and the visible side (4) of the optical waveguide (3) is visible in the interior, wherein the optical waveguide (3) has at least one fastening element (7) on the rear side (5), the light pattern coupled out at the visible side (4) being predetermined by the structure of the fastening element, and A motor vehicle component on which the optical waveguide (3) is held via the fastening element (7).

2. The interior equipment according to claim 1, wherein: A plurality of identical fastening elements (7) arranged at regular intervals from one another are provided on the rear side (5) of the optical waveguide (3), so that in a defined installation position the light pattern coupled out on the visible side (4) has a regular structure.

3. The interior equipment according to claim 1 or 2, wherein: The optical waveguide (3) is designed in one piece.

4. Interior equipment according to any one of the preceding claims, wherein: The interior device is configured as a knob-operated device (1), the optical waveguide (3) is configured as a rotary element (2) which can be rotated by a vehicle occupant about a rotation axis (6) for user input, the motor vehicle component is a rolling bearing which can rotate about the rotation axis (6), and the at least one fastening element (7) is a compression rib (7), the rotary element (2) inserted into the rolling bearing is frictionally engaged with the rolling bearing via the compression rib, whereby the rotary element (2) is connected to the rolling bearing in a rotationally fixed manner.

5. The interior equipment according to claim 4, wherein: The rotary element (2) has a plurality of compression ribs (7) which are distributed at regular intervals around the rotary axis (6) on the circumference.

6. The interior equipment according to claim 4 or 5, wherein: The at least one crushing rib (7) extends with its longitudinal extension in the axial direction of the rotation axis (6).

7. The interior equipment according to any one of claims 4 to 6, wherein: The cross-section of the at least one crush rib (7) is selected as a function of the light pattern that is to be generated on the visible side (4) in the intended installation position.

8. A motor vehicle having an interior arrangement according to any one of the preceding claims, wherein: The visible side (4) faces the interior space and is not completely covered by the motor vehicle component toward the interior space.

Images