Mirror device with micro-ribs

Abstract

The invention relates to a mirror device (1) for a vehicle, comprising a mirror glass (2) and a mirror support (3) for receiving the mirror glass (2), wherein the mirror support (3) has a shell (4) and fastening means (5, 6, 7) arranged circumferentially of the shell, which limit the movement of the mirror glass (2) on the outside and inside, wherein the fastening means (5, 6, 7) have at least one radially inwardly projecting support (8) with micro-ribs (9) projecting towards the mirror glass (2).

Description

[0001] Accordingly, the invention relates to a mirror device for a vehicle. The mirror device comprises a mirror glass and a mirror support for receiving the mirror glass. The mirror support comprises a shell and fastening means arranged circumferentially around the shell, which limit the mobility of the mirror glass on both the outside and inside.

[0002] In mirror devices known from the prior art, the mirror glass is inserted or clamped between circumferentially distributed, inner and outer fastening means for attachment to the mirror support, so that the mirror glass is firmly seated in the mirror support. For example, EP 2 334 512 A1 discloses a mirror device in which the mirror glass is inserted into a circumferential groove in the mirror support on one circumferential side and is fixed on the other circumferential side by retaining clips (which can be elastically deflected for assembly). The fastening means can be designed such that they press the mirror glass against a respective opposing fastening means to achieve the firm fit.

[0003] In addition, a sun visor is known from DE 10 2014 014 866 B3 in which a mirror glass is accommodated on the inside and outside to a limited extent, with plastic ribs resting on the mirror glass.

[0004] Furthermore, CN 1 04 228 686 A discloses a mirror device with a mirror glass that is limited on the inside and outside. Furthermore, CN 2 06 704 080 U and CN 2 12 172 082 U disclose improving the clamping of a mirror glass by means of a rubber base. Furthermore, CN 2 06 826 547 U discloses clamping a glass using structural elements.

[0005] However, the prior art has the disadvantage that the fastening elements, which are usually made of plastic, lose their rigidity due to temperature fluctuations, water absorption and release, and material aging, for example, allowing the mirror glass to move within the mirror support. To prevent this, the prior art uses rubber elements, such as foam rubber, or large spring elements. However, in the case of embedded rubber elements, these require an additional assembly step or also lose rigidity (at least in the case of the spring elements) over the product's lifetime.

[0006] The object of the invention is therefore to avoid or at least mitigate the disadvantages of the prior art. In particular, a mirror device is to be provided in which a particularly secure fit of the mirror glass in the mirror carrier can be ensured in a particularly simple manner over the longest possible period of time.

[0007] This object is achieved by a mirror device having the features of the independent patent claim. Advantageous embodiments are the subject of the dependent claims.

[0008] The invention accordingly relates to a mirror device for a vehicle. The mirror device comprises a mirror glass, i.e. a reflective element with a reflective surface, and a mirror support for receiving the mirror glass. The mirror support comprises a shell and fastening means arranged on the circumference of the shell, which limit the mobility of the mirror glass on the outside and inside. This means that the mirror support has external fastening means and internal fastening means. External and internal mobility is understood to mean mobility with respect to a surface of the mirror glass. This means that the external fastening means face or face an external surface of the mirror glass (visible to the end user).are arranged on an outer side of the mirror glass and the inner fastening means face an inner surface of the mirror glass (not visible to the end user) or are arranged on an inner side of the mirror glass. Accordingly, the outer surface is a surface facing away from a mirror housing and the inner surface is a surface facing the mirror housing. Preferably, an inner fastening means can be located substantially (in particular directly) opposite an outer fastening means with respect to the mirror glass, ie, can be arranged substantially at the same position in the circumferential direction.

[0009] The fastening means are designed, in particular, in the form of (radially) inwardly projecting fastening projections, i.e., protruding radially (with respect to / in relation to the shell) or protruding from an inner shell surface, and / or in the form of fastening grooves formed on the inside, i.e., radially (with respect to / in relation to the shell) recessed or recessed in an inner shell surface. In this case, inwardly or radially is understood to mean an extension substantially toward a center of the mirror support or mirror glass.

[0010] The radial direction is not limited to a circular shape of the mirror support or mirror glass or an extension to a center point of the mirror support or mirror glass, but is used only to distinguish it from a circumferential direction, which is essentially aligned along an edge of the mirror support or mirror glass. The radial direction is therefore transverse to the circumferential direction or essentially perpendicular to the circumferential direction. An extension with respect to a surface of the mirror glass, i.e., toward or away from the mirror glass, is understood to mean a direction that is transverse to the circumferential direction and the radial direction or essentially perpendicular to the circumferential direction and the radial direction.

[0011] According to a central aspect of the invention, the fastening means comprise at least one (radially) inwardly projecting support with microribs projecting towards the mirror glass. This means that the support protrudes radially (with respect to / in relation to the shell) or protrudes from the inner surface of the shell, and that the microribs are formed on a surface of the support facing the mirror glass. The support and / or the microribs can preferably be formed from plastic. In this case, the support forms an individual fastening means or a component of an individual fastening means, and the invention is not limited to the support with the microribs being formed on each of the fastening means.This means that the microribs protrude from the outside of the carrier when the carrier forms an internal fastening means, and that the microribs protrude from the inside of the carrier when the carrier forms an external fastening means. The carrier can also be formed integrally with the shell or be formed by the microribs. This means that the microribs can also protrude directly from the inner surface of the shell towards the mirror glass. A microrib does not necessarily have to be understood as a design in the micrometer range, but rather as a design that is comparatively small compared to known individual ribs. The microribs according to the invention in particular have a design essentially in the high micrometer range down to the low millimeter range, ie in particular in the range from 10 µm to 4 mm, preferably from 500 µm to 2 mm.

[0012] In other words, the microribs are smaller than those used in the prior art, so that environmental influences such as temperature fluctuations and water absorption or loss have a much smaller impact on any changes in the geometry of the microribs. This has the advantage that the microribs can retain their stiffness or elasticity over a longer period of time, so that the tension can be maintained or reduced to almost 0 without the mirror glass developing play, and the mirror glass remains firmly in place even without additional spring elements or rubber elements. However, due to manufacturing reasons, there are limits to the dimensions, so that the microribs cannot, for example, be made arbitrarily thin. In addition, a certain thickness of the microribs requires a certain length or depth of the microribs, which can, however, be improved by forming them on the inwardly projecting support.

[0013] According to a preferred embodiment, the fastening means can comprise a plurality of supports with the microribs. Preferably, two of the supports can be arranged on one or each long side of the mirror support (each as an internal fastening means or an external fastening means). Preferably, one support can be arranged on one or each short side of the mirror support (each as an internal fastening means or an external fastening means).

[0014] Alternatively, one support can be arranged on the long sides, or (maximum) three or (maximum) four supports can be arranged on each of the long sides. Alternatively, (maximum) two supports can be arranged on each of the short sides.

[0015] According to a preferred embodiment, the microribs of a carrier can be arranged as a microrib stack with multiple microribs. This means that the microribs can be arranged locally in clusters on the carrier or on the shell inner surface. The microribs of a microrib stack can preferably be arranged substantially parallel and spaced apart. In other words, a microrib stack with multiple microribs is formed on the carrier (or each of the multiple carriers). This means that the carrier (or each of the multiple carriers) each forms a microrib stack with multiple microribs.

[0016] According to the preferred embodiment, a distance between any two microrib packs or supports can be substantially greater than a distance between any two microribs of a microrib pack or support. This means that a distance between a microrib pack or support and a nearest adjacent microrib pack or support can be substantially greater than a distance between a microrib of a microrib pack or support and a nearest adjacent microrib of the microrib pack or support. In this case, substantially greater is understood to mean at least 5 times, 10 times, 15 times, 20 times, 30 times or 50 times as large, but a maximum of 300 times, 200 times, 150 times or 100 times as large. In other words, such an area around each microrib pack or support that is larger than the microrib pack or support can be free of microribs.the carrier is preferably at least 2 or 3 times as large, but a maximum of 10 or 8 times as large as the microrib package or the carrier.

[0017] According to a preferred embodiment, the carrier can have a transverse section extending substantially in the circumferential direction (or alternatively (slightly) inclined to the circumferential direction), on which the microribs are formed. A transverse section is understood to be a section with a surface that extends substantially parallel to the mirror glass surface. This means that the transverse section of the carrier extends substantially parallel to the edge or along the edge of the mirror carrier. This results in an advantageous positioning of the microribs formed on the carrier.

[0018] According to a preferred embodiment, the support can have at least one leg (or support section) extending (from the transverse section) substantially away from the mirror glass. This means that the transverse section is supported by the leg, preferably by two legs arranged on either side of the transverse section. This ensures sufficient stability of the support and manufacturability.

[0019] According to the preferred embodiment, the radial extension of the leg can be configured to decrease away from the mirror glass (i.e., with increasing distance from the mirror glass). Such a configuration can improve demoldability during the manufacture of the mirror support. Alternatively, the radial extension of the leg can be substantially constant.

[0020] According to the preferred embodiment, the leg can extend circumferentially outwardly or inwardly from the transverse section. This means that the leg, in the direction away from the mirror glass, does not extend perpendicular to the transverse section, but rather (slightly) inclined and / or curved relative to the transverse section. This can improve stability and manufacturability.

[0021] According to the preferred embodiment, the carrier can be substantially U-shaped in cross-section. Alternatively, the carrier can be L-shaped or C-shaped, for example. Such a shape has proven particularly advantageous with regard to positioning of the microribs and manufacturability.

[0022] According to a preferred embodiment, the supports can be arranged substantially symmetrically and / or evenly distributed in the circumferential direction, ie, in particular, viewed along the respective long side. When only one support is formed per side, in particular on the short side, the support can be arranged substantially centrally in the circumferential direction, ie, in particular, viewed along the respective short side. This results in a good distribution.

[0023] According to a preferred embodiment, the mirror glass can be directly in contact with the fastening means on the inside and / or outside (i.e., without an additional spring or damper element). The invention is not limited to the mirror glass being directly in contact with all fastening means. By being in contact with the fastening means, the mirror glass can advantageously be held with virtually no play.

[0024] According to the preferred embodiment, the mirror glass can rest (directly) on at least one of the microribs, several microribs, or all of the microribs, in particular flatly. Due to the dimensioning of the microribs and the resulting low-fatigue elastic properties, a particularly good fit of the mirror glass can be achieved by resting on at least one of the microribs.

[0025] According to a preferred embodiment, at least one of the microribs can be deformed or abraded by a surface of the mirror glass when the mirror device is mounted. This means that the at least one of the microribs is elastically and / or plastically deformed and / or its geometry is changed by the mirror glass, which preferably results in a force acting on the mirror glass that holds the mirror glass in the mirror support without play, even over an extended period of time and taking into account material fatigue of the at least one of the microribs.

[0026] According to a preferred embodiment, the external fastening means can have inwardly projecting fastening projections in the form of retaining lugs, i.e., projecting radially (with respect to / in relation to the shell) or protruding from the shell's inner surface. In particular, the external fastening means can have elastically resilient tongues on which the retaining lugs are formed. This means that the external fastening means (or at least one or more of the external fastening means) can be designed as snap hooks. This design ensures easy installation of the mirror glass.

[0027] According to a preferred embodiment, the support, particularly with regard to the design of the cross member, and / or the microribs, particularly with regard to their height, can be adapted to the shape of a surface of the mirror glass. This means that the support and / or the microribs essentially follow the curvature of the mirror glass.

[0028] According to a preferred embodiment, the inclination radius of the microribs can vary and / or be adapted to the shape of the surface of the mirror glass. This allows desired elastic properties to be achieved. According to a preferred embodiment, the microribs can extend perpendicularly or at an angle to the circumferential direction. For example, the microribs can be inclined toward the nearer short side or long side or away from the nearer short side or long side. Alternatively, the microribs can extend substantially parallel to the circumferential direction.

[0029] According to a preferred embodiment, the shape of the microribs, in particular a support surface of the microribs facing the mirror glass, can be rounded in the circumferential direction, be constant, or be inclined. For example, the support surface can be inclined toward the nearer short side or long side or away from the nearer short side or long side.

[0030] According to a preferred embodiment, the shape of the microribs can be inclined in the radial direction. In particular, the radial extension of the microribs can be designed to decrease away from the mirror glass. Alternatively, the shape of the microribs can be constant in the radial direction. The preferably inclined or alternatively constant design in the radial direction simplifies manufacturability.

[0031] According to a preferred embodiment, the support with the microribs can be positioned circumferentially in a region where there is a minimal deviation of the mirror glass from a desired radius of curvature. Due to manufacturing reasons, different mirror glasses have (slightly) different radii of curvature, so that the different mirror glasses can rest at different points. Therefore, the position of the supports with the microribs is selected such that the different possible radii of curvature intersect in the region of the support with the microribs. This ensures that any manufacturing deviation has as little impact as possible.

[0032] According to a preferred embodiment, the support and / or the microribs, particularly with regard to their thickness, can be dimensioned such that they are not visible from outside the mirror device. This can prevent an aesthetically negative perception of the mirror device, for example, due to dents or an uneven surface. According to the preferred embodiment, the support and / or the microribs can be thinner than an outer wall of the mirror support, i.e., a wall thickness of the shell, and / or the microribs can have a maximum width (in the circumferential direction) of 1.5 mm. This design principle makes it relatively easy to ensure that the support and / or the microribs are not visible from outside the mirror device.

[0033] In other words, the invention relates to a mirror device with micro-ribs on a snap-on mirror glass. The aim is to solve the problem that plastic loses its rigidity over the course of a product's lifetime, for example due to temperature changes. This can lead to the mirror glass in the housing gaining more space over time and thus being able to move within the housing. To prevent this effect, a foam rubber is manually clamped into the known mirror device during assembly, which reduces or prevents this effect. However, with increasing automation during assembly, the foam rubber is to be replaced.to avoid the required (manual) step of inserting the foam rubber. To prevent this effect, in known mirror devices, large spring elements are alternatively or additionally integrated into the mirror carrier (i.e., the mirror housing or a mirror glass carrier plate). Accordingly, the invention relates in particular to a mirror system for a vehicle, comprising a holding element having at least one outer functional surface and at least one inner functional surface opposite the outer functional surface, at least one reflective element having a reflective surface, wherein the reflective element is arranged between the outer functional surface and the inner functional surface, and the reflective surface faces the outer functional surface, wherein the reflective element at least partially touches the outer and inner functional surfaces, wherein the outer functional surface or inner functional surface is divided into at least two active elements,wherein the active elements are designed in such a way that the active elements can be spring-loaded, scraped, or deformed by the assembly of the reflective element, wherein the geometry of the active elements is selected such that after assembly and the geometric change caused by the assembly, the geometry is designed such that an angle between a side surface of the active element and an original surface of the active elements can assume values ​​between 0-180°, wherein an enveloping function that describes / envelops the active surfaces after assembly corresponds in partial areas to the function that corresponds in the area of ​​the support surface of the reflective element on the active surfaces to the description of the surface of the reflective element, wherein the reflective element rests on at least one active surface and wherein the reflective element cannot move between the inner and outer functional surfaces and holds the reflective element stable in the holding element.

[0034] The geometry can preferably take the demolding direction into account; in particular, the active elements can have a different height / width in depth than neighboring active elements and can vary in height and / or width, i.e., can be designed as beveled ribs. The angle between the side surface and the original surface can preferably be different for the active elements used. The active elements can preferably be located on defined segments (without spring action) that carry the active elements. Two segments with active elements can preferably be positioned on each of the long sides of the mirror system. The geometry can preferably be selected so that all tolerances (e.g., the radius of curvature of the mirror glass) in the system are compensated (and the spring force remains).Preferably, the active elements can have such a small extension / height (a few mm or less than one mm) that the temperature-related increase / decrease in volume of the active elements is so small that the reflective element continues to be held immovably in the holding element. Preferably, the position of the active elements can be selected such that, within all manufacturing tolerances (reflective element, plastic parts), the reflective element partially touches at least one active element. Preferably, the active elements can be designed such that they have tensile, shear, flexural, and torsional rigidity. Preferably, the temperature-related (between -40 and +80°C) increase / decrease in volume of the active elements can be so small that the reflective element continues to be held immovably in the holding element.Preferably, the volume increase / decrease of the active elements caused by water absorption / release can be so small that the reflective element remains immobile in the retaining element. Preferably, the spacing of the active elements can be determined by the height of the active elements and the minimum and maximum curvature radius of the glass, as well as the attachment point of the segment.

[0035] In summary, the mirror device according to the invention, in comparison to the prior art, has plastic ribs designed to permanently hold the mirror glass in the housing. The plastic ribs are used instead of larger-area spring elements because, over the product's lifetime, the spring elements lose their rigidity due to environmental influences (temperature fluctuations, water absorption / release) and change their geometry to such an extent that the tension with which the mirror glass is held is lost, allowing the mirror glass to move freely and begin to rattle. These spring elements required the insertion of foam rubber during assembly to maintain the tension.By designing the ribs on a small scale / with small dimensions, the change in the geometry of the ribs due to environmental influences is so small that the tension can be maintained even over an extended period of time. Furthermore, it is possible that the mirror glass does not rest on all ribs after installation, but only on at least one support rib. Over the course of the product's lifetime, it can then happen that the support rib sinks and another rib or other ribs come into contact with the mirror glass, so that the number of contact points can change over time or with different temperatures. The geometry can be selected in such a way that assembly in which the mirror glass is pressed into the housing with a certain amount of pressure is possible by deforming the active elements without these breaking or otherwise losing their function.In addition, the geometry should ensure that the holding tension is maintained throughout the product's lifetime.

[0036] The invention is explained below with the aid of drawings. They show: Fig. 1 and Fig. 2 perspective view of a mirror device according to the invention; Fig. 3 a sectional view of the mirror device; Fig. 4 and Fig. 5 sectional views of the mirror device in the area of ​​a partially or completely supported microrib of the mirror device; Fig. 6 to 8 are perspective views of different embodiments of the mirror device in the region of the microribs of the mirror device; Fig. 9 to 15 are schematic representations of different embodiments of the mirror device; and Fig. 16 a schematic representation of an influence of manufacturing tolerances on the mirror device according to the invention.

[0037] The figures are merely schematic and serve to clarify the invention. Identical elements are identified by the same reference numerals. Features of different embodiments can be combined in any way.

[0038] Fig. Figures 1 to 8 show a mirror device 1 according to the invention, or individual parts or details thereof. The mirror device 1 is intended for use in a vehicle.

[0039] The mirror device 1 has a mirror glass 2. The mirror glass 2 can also be referred to as a reflection element with a reflective surface. Fig. 1 and Fig. 2, the mirror glass 2 is not shown. The mirror device 1 has a mirror carrier 3. The mirror carrier 3 serves to hold the mirror glass 2.

[0040] The mirror support 3 has a shell 4 and fastening means 5 arranged on the circumference of the shell 4. The fastening means 5 limit the mobility of the mirror glass 2 on the outside and inside, respectively. This means that the mirror support 3 has external fastening means 6 and internal fastening means 7. External and internal mobility is understood to mean mobility with respect to a surface of the mirror glass 2. This means that the external fastening means 6 face an outer surface of the mirror glass 2 or are arranged on an outside of the mirror glass 2, and the internal fastening means 7 face an inner surface of the mirror glass 2 or are arranged on an inside of the mirror glass 2.

[0041] Preferably, an outer fastening means 6 can be located substantially, in particular directly, opposite an inner fastening means 7, ie arranged substantially at the same position in the circumferential direction.

[0042] The inner and / or fastening means 6, 7 are designed in particular in the form of fastening projections that project inwards, ie that project radially (with respect to / in relation to the shell) or that project from an inner surface of the shell.

[0043] Inwards or radially is understood to mean an extension essentially towards a center of the mirror support 3 or mirror glass 2. The radial direction is not restricted to a circular shape of the mirror support 3 or mirror glass 2 or an extension to a center point of the mirror support 3 or mirror glass 2, but is only used to distinguish it from a circumferential direction which is essentially aligned along an edge of the mirror support 3 or mirror glass 2. The radial direction is therefore transverse to the circumferential direction or essentially perpendicular to the circumferential direction. An extension with respect to a surface of the mirror glass 2, i.e. towards the mirror glass 2 or away from the mirror glass 2, is understood to mean a direction which is transverse to the circumferential direction and to the radial direction or is essentially perpendicular to the circumferential direction and to the radial direction.

[0044] According to a central aspect of the invention, the fastening means 5 have at least one inwardly projecting support 8 with microribs 9 projecting towards the mirror glass 2. This means that the support 8 projects radially or protrudes from the inner surface of the shell. This also means that the microribs 9 are formed on a surface of the support 8 facing the mirror glass 2. A microrib 9 does not necessarily have to be understood as being in the micrometer range, but rather as being comparatively small compared to known individual ribs. The microribs 9 according to the invention are in particular formed substantially in the high micrometer range down to the low millimeter range, i.e. in particular in the range from 10 µm to 4 mm, preferably from 500 µm to 2 mm.

[0045] The mirror support 3 or the fastening means 5 or the support 8 and / or the microribs 9 can preferably be made of plastic. The support 8 can be formed or arranged on one or more of the external fastening means 6 and / or on one or more of the internal fastening means 7.

[0046] In the illustrated embodiments, the microribs 9 protrude from the outside of the carrier 8, with the carrier 8 forming an internal fastening means 7 (or a part thereof). Alternatively or additionally, the microribs 9 can protrude from the inside of the carrier 8, with the carrier 8 forming an external fastening means 6 (or a part thereof), even if this is not illustrated. The carrier 8 can also be formed integrally with the shell 4 or be an integral part of the shell 4.

[0047] The microribs 9 can also protrude directly from the inner surface of the shell towards the mirror glass 2, even if this is not shown.

[0048] Preferably, the fastening means 5 can comprise a plurality of supports 8 with the microribs 9 or some or all of the external and / or internal fastening means 7 can each comprise one of the supports 8 with the microribs 9.

[0049] Preferably, two of the supports 2 can be arranged on each longitudinal side of the mirror support 3 (cf. Fig. 1 and Fig. 2). In addition, on one or each short side of the mirror support 3, for example in the area of ​​a rib 10 (cf. Fig. 1 and Fig. 2), a support 8 with the microribs 9 can be arranged, even if this is not shown. Alternatively, only one support 8 can be arranged on one long side or on the long sides, or (maximum) three or (maximum) four of the supports 8 can be arranged on one long side or on the long sides, even if this is not shown. Alternatively, (maximum) two of the supports can be arranged on each of the short sides, even if this is not shown.

[0050] Preferably, the microribs 9 of a carrier 8 can be arranged as a microrib stack with multiple microribs 9. This means that the microribs 9 can be arranged locally in clusters on the carrier 8 or (directly) on the shell inner surface. The microribs 9 of a microrib stack can preferably be arranged substantially parallel and spaced apart. In particular, the distance between any two microrib stacks or carriers 8 can be significantly greater than the distance between any two microribs 9 of a microrib stack or of a carrier 8.

[0051] Preferably, the support 8 can have a transverse section 11 extending substantially in the circumferential direction (or alternatively (slightly) inclined to the circumferential direction), on which the microribs 9 are formed. This means that the transverse section 11 of the support 8 extends substantially parallel to the edge or along the edge of the mirror support 3. Preferably, the support 8 can have two legs 12 extending (from the transverse section 11) substantially away from the mirror glass 2. In particular, a radial extension of the legs 12 can be designed to decrease away from the mirror glass 2. For example, the legs 12 can extend outwards (or alternatively inwards) from the transverse section 11 in the circumferential direction. This means that the legs 12 can extend, in the direction away from the mirror glass 2, not perpendicular to the transverse section 11, but (slightly) inclined and / or curved to the transverse section 11.Preferably, the carrier 8 may be substantially U-shaped in cross section.

[0052] Preferably, the plurality of supports 8 can be arranged substantially symmetrically and / or evenly distributed in the circumferential direction, ie in particular as seen over the respective longitudinal side.

[0053] Preferably, the mirror glass 2 can be in direct contact on the inside and / or outside with at least one fastening means 5 or some fastening means 5 or all fastening means 5 (cf. Fig. 4 and Fig. 5). In particular, the mirror glass 3 can rest (directly) on at least one of the microribs 9, several microribs 9 or all microribs 9, in particular flatly. Fig. 4 shows that the mirror glass 2 partially rests on one of the microribs 9. In Fig. 5 shows that the mirror glass 2 rests completely on one of the microribs 9.

[0054] Preferably, the external fastening means 6 can have inwardly projecting fastening projections in the form of retaining lugs 13. In particular, the external fastening means 6 can have elastically resilient tongues 14 on which the retaining lugs 13 are formed. This means that the external fastening means 6 (or at least one or more of the external fastening means 6) can be designed as snap hooks.

[0055] In particular, one of the supports 8, which forms an inner fastening means 7, can be arranged in the circumferential direction in the region of an outer fastening means 6 or the resilient tongue 14, so that the microribs 9 are opposite the outer fastening means 6 or the retaining lug 13 (with the mirror glass 2 arranged therebetween) (cf. Fig. 6 and Fig. 7). The carrier 8 can, for example, be mounted off-center in the circumferential direction on the resilient tongue 14 (cf. Fig. 6) or in the circumferential direction centrally on the resilient tongue 14 (cf. Fig. 7) may be arranged.

[0056] Preferably, the external fastening means 6 can have fastening grooves 15 formed on the inside of the shell 4. In particular, one of the supports 8, which forms an internal fastening means 7, can be arranged in the circumferential direction in the region of an external fastening means 6 or the fastening groove 15, so that the microribs 9 are opposite the external fastening means 6 or the fastening groove 15 (with the mirror glass 2 arranged therebetween) (cf. Fig. 8).

[0057] Preferably, the microribs 9 can extend perpendicularly or (slightly) inclined to the circumferential direction (cf. Fig. 9). Preferably, at least one of the microribs 9 can be deformed or abraded by a surface of the mirror glass 2 in the assembled state of the mirror device 1. This means that at least one of the microribs is elastically and / or plastically deformed and / or its geometry is changed by the mirror glass 2 (cf. Fig. 10).

[0058] Preferably, the microribs 9, particularly with regard to their height, can be adapted to a shape of a surface of the mirror glass 2. This means that the microribs 9 essentially follow a curvature of the mirror glass 2. For example, several or all of the microribs 9 can touch the mirror glass 2 (cf. Fig. 10) or, for example, (only) one micro-rib 9 can touch the mirror glass 2 (cf. Fig. 11).

[0059] Fig. 12 and Fig. 13 show the microribs 9 before assembly (cf. Fig. 12) and after assembly (cf. Fig. 13), whereby the microribs 9 are deformed by the mirror glass 2. The microribs 9 can also have different heights. The microribs 9 can have the same width / thickness.

[0060] Fig. Figure 14 shows that the transverse section 11 of the carrier 8 can also be inclined relative to the circumferential direction. The microribs 9 can also be rounded. The microribs 9 can also have different widths / thicknesses. The microribs 9 can also have different spacings.

[0061] Fig. Figure 15 shows that the leg 12 of the support 8 can also be inclined or curved inwardly from the transverse section 11 to the circumferential direction. The microribs 9 can have different shapes and / or different heights and / or different widths / thicknesses and / or different arrangements.

[0062] Preferably, the support 8 with the microribs 9 can be positioned in the circumferential direction in an area, or the microribs can be in contact with the mirror glass 2 in the area in which there is a minimal deviation of the mirror glass 2 from a desired radius of curvature. Therefore, the position of the support 8 with the microribs 9 is selected such that the different possible radii of curvature in the area of ​​the support 8 with the microribs 9 have an intersection point S (see FIG. Fig. 16). List of reference symbols 1 mirror device 2 mirror glass 3 mirror supports 4 bowls 5 fasteners 6 external fastener 7 internal fastener 8 carriers 9 microrib 10 ribs 11 Cross section 12 legs 13 Retaining lug 14 Tongue 15 Mounting groove S intersection point

Claims

[1] Mirror device (1) for a vehicle, with a mirror glass (2) and a mirror support (3) for receiving the mirror glass (2), wherein the mirror support (3) has a shell (4) and fastening means (5, 6, 7) arranged on the circumference of the shell, which limit the mobility of the mirror glass (2) on the outside and inside, characterized by that the fastening means (5, 6, 7) have at least one radially inwardly projecting support (8) with microribs (9) projecting towards the mirror glass (2). [2] Mirror device (1) according to claim 1, characterized by in that the fastening means (5, 6, 7) have a plurality of supports (8) with the microribs (9), wherein the microribs (9) of a support (8) are arranged as a microrib package with a plurality of microribs (9), wherein a distance between each two supports (8) is substantially greater than a distance between each two microribs (9) of a support (8). [3] Mirror device (1) according to claim 1 or 2, characterized by that the carrier (8) has a transverse section (11) extending substantially in the circumferential direction, on which the microribs (9) are formed. [4] Mirror device (1) according to one of claims 1 to 3, characterized by that the carrier (8) has at least one leg (12) extending substantially away from the mirror glass (2), wherein a radial extension of the leg (12) is designed to decrease away from the mirror glass (2). [5] Mirror device (1) according to one of claims 1 to 4, characterized by that the mirror glass (2) rests directly on the fastening means (5, 6, 7) on the inside and / or outside, wherein the mirror glass (2) preferably rests on at least one of the microribs (9). [6] Mirror device (1) according to one of claims 1 to 5, characterized bythat at least one of the microribs (9) is deformed or scraped off by a surface of the mirror glass (2) in the mounted state of the mirror device (1). [7] Mirror device (1) according to one of claims 1 to 6, characterized by that the supports (8) are arranged substantially symmetrically and / or evenly distributed in the circumferential direction along the mirror support (3). [8] Mirror device (1) according to one of claims 1 to 7, characterized by that a shape of the microribs (9) is inclined in the radial direction, in particular a radial extension of the microribs is designed to decrease away from the mirror glass (2). [9] Mirror device (1) according to one of claims 1 to 8, characterized by that the support (8) and / or the microribs (9), in particular with regard to their thickness, are dimensioned such that they are not visible from outside the mirror device (1). [10] Mirror device (1) according to claim 9, characterized bythat the support (8) and / or the microribs (9) are thinner than an outer wall of the mirror support (3) and / or that the microribs (9) have a maximum width of 1.5 mm.

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