WO2015039893A1 - Lamp cover, vehicle component and vehicle - Google Patents

Lamp cover, vehicle component and vehicle Download PDF

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Publication number
WO2015039893A1
WO2015039893A1 PCT/EP2014/068948 EP2014068948W WO2015039893A1 WO 2015039893 A1 WO2015039893 A1 WO 2015039893A1 EP 2014068948 W EP2014068948 W EP 2014068948W WO 2015039893 A1 WO2015039893 A1 WO 2015039893A1
Authority
WO
WIPO (PCT)
Prior art keywords
vehicle
cover
lamp
characterized
light
Prior art date
Application number
PCT/EP2014/068948
Other languages
German (de)
French (fr)
Inventor
Daniel Kalkus
Original Assignee
Kunststoff-Technik Scherer & Trier Gmbh & Co. Kg
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority to DE201310218850 priority Critical patent/DE102013218850A1/en
Priority to DE102013218850.1 priority
Application filed by Kunststoff-Technik Scherer & Trier Gmbh & Co. Kg filed Critical Kunststoff-Technik Scherer & Trier Gmbh & Co. Kg
Publication of WO2015039893A1 publication Critical patent/WO2015039893A1/en

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60QARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
    • B60Q1/00Arrangements or adaptations of optical signalling or lighting devices
    • B60Q1/0005Devices preventing the lights from becoming dirty or damaged, e.g. protection grids, cleaning by air flow
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/16Making multilayered or multicoloured articles
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60QARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
    • B60Q1/00Arrangements or adaptations of optical signalling or lighting devices
    • B60Q1/26Arrangements or adaptations of optical signalling or lighting devices the devices being primarily intended to indicate the vehicle, or parts thereof, or to give signals, to other traffic
    • B60Q1/32Arrangements or adaptations of optical signalling or lighting devices the devices being primarily intended to indicate the vehicle, or parts thereof, or to give signals, to other traffic for indicating vehicle sides, e.g. clearance lights
    • B60Q1/323Arrangements or adaptations of optical signalling or lighting devices the devices being primarily intended to indicate the vehicle, or parts thereof, or to give signals, to other traffic for indicating vehicle sides, e.g. clearance lights on or for doors or running boards, e.g. to facilitate acces to the vehicle
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21LIGHTING
    • F21SNON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S45/00Arrangements within vehicle lighting devices specially adapted for vehicle exteriors, for purposes other than emission or distribution of light
    • F21S45/10Protection of lighting devices
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/14Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
    • B29C45/14778Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles the article consisting of a material with particular properties, e.g. porous, brittle
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29LINDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2031/00Other particular articles
    • B29L2031/30Vehicles, e.g. ships or aircraft, or body parts thereof
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29LINDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2031/00Other particular articles
    • B29L2031/747Lightning equipment
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60QARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
    • B60Q2400/00Special features or arrangements of exterior signal lamps for vehicles
    • B60Q2400/40Welcome lights, i.e. specific or existing exterior lamps to assist leaving or approaching the vehicle
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60QARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
    • B60Q2900/00Features of lamps not covered by other groups in B60Q
    • B60Q2900/10Retrofit arrangements

Abstract

The invention relates to a lamp cover (4) for covering a lighting device (3) in a vehicle component (2) of a vehicle (1), wherein the lamp cover (4) has an at least partially transparent illuminating region (13) through which the lighting device (3) can transmit light, wherein the illuminating region (13) is produced from at least one impact-absorbing material or has at least one coating composed of an impact-absorbing material, wherein the impact-absorbing material is a plastic with a Shore A hardness within a range of 40 to 90, or a plastic with a Shore D hardness within a range of 25 to 60.

Description

Luminaire cover, vehicle component and vehicle

FIELD OF THE INVENTION The present invention relates to an impact-resistant luminaire cover for covering a lighting device in a vehicle component, in particular a body component or a vehicle lamp, of a vehicle. The present invention further relates to a vehicle component and a vehicle lamp of a vehicle and a vehicle.

TECHNICAL BACKGROUND

Such lights covers are used in vehicles in general in conjunction with lights, with which the floor is illuminated under the door area of the vehicle, for example, to facilitate entry into the vehicle in the dark. The luminaire covers are arranged on the sill and cover the luminaires in order to protect them from damage, e.g. by stones thrown from the edges, protect. The sill is an area of the self-supporting body of a vehicle and is located below the door entry, longitudinally on both sides of the vehicle, between the front and rear wheel arches.

Previous luminaire covers are made of polycarbonate (PC), a hard, relatively impact-resistant material. In such hard materials, it may come due to stone chipping, for example by rolling split, to abrasive damage to destruction of the lamp cover. In addition, abrasive damage to the luminaire cover results in reduced transparency of the luminaire cover. This leads to a lower light transmittance of the luminaire and thus to a deterioration of the lighting by means of the lights. To protect the lamp cover, therefore, an additional protective film or a protective varnish is applied to the lamp cover.

Furthermore, luminaire covers made of polymethylmethacrylate (PMMA) are known. However, polymethyl methacrylate (PMMA) is susceptible to stress cracking. Furthermore, it is known to provide the lamp cover with an annular protective cap. However, such a protective cap has the disadvantage that it shields part of the light transmitted through the luminaire cover.

SUMMARY OF THE INVENTION

Against this background, the invention is based on the object of providing an improved impact-resistant luminaire cover for a vehicle. According to the invention this object is achieved by a lamp cover with the features of claim 1 and / or by a vehicle component with the features of claim 11 and / or by a vehicle lamp with the features of claim 14 and / or by a vehicle with the Merkma- len of the claim 17 solved.

According to the invention, a luminaire cover is provided for covering a lighting device in a vehicle component of a vehicle, wherein the luminaire cover has an at least partially transparent or translucent luminous area through which the illuminating device can illuminate, wherein the luminous area is made of at least one impact-absorbing material or at least one coating of an impact-absorbing material, wherein the impact-absorbing material is a plastic having a hardness Shore A in a range of 40 to 90, or a plastic having a hardness Shore D in a range of 25 to 60. A preferred example of such a material is an acrylic based copolymer such as KURARITY ™. Another preferred material is a thermoplastic, aliphatic polyurethane. In a preferred embodiment, the impact-absorbing material is a plastic having a Shore A hardness in a range from 40 to 90 and a hardness Shore D in a range from 25 to 60.

A partially transparent or translucent impact absorbing material may be advantageous when using a strong lamp / light source in which the light in the impact absorbing material and / or in the material of the holding portion is partially absorbed and / or scattered to allow the transmitted / transmitted light not too bright.

The impact absorbing material has the advantage that it is soft and can absorb the force of stones thrown by the wheels or the like during travel and, for example, as an additional protective layer can protect a hard material such as polycarbonate from abrasive damage. Furthermore, the impact-absorbing material is preferably also very tear-resistant, so that hardly or no cracks are formed in the impact-absorbing material by spin-on stones or the like, and thus there is no longer a long-term abrasion of the impact-absorbing material. This makes it possible to provide a rockfall-proof cover of the illumination device without, as hitherto, covering the luminaire cover with a Additional protective film, protective coating or protective cap must be provided. In addition, the impact-absorbing material moreover also provides protection against other harmful influences and can thus also be essentially chemically resistant to chemicals and / or weathering and, moreover, is not attacked by water.

The hardness Shore A in a range of 40 to 90 and the hardness Shore D in a range of 25 to 60 is determined here according to DIN EN ISO 868.

The underlying idea / idea of the present invention is to provide a luminaire cover whose luminous area consists of or is coated with a softer impact-absorbing material. Such an impact absorbing material as a plastic having a hardness of Shore A in a range of 40 to 90 or a plastic having a hardness of Shore D in a range of 25 to 60 can absorb rockfalls as opposed to a hard material.

Advantageous embodiments and modifications of the invention will become apparent from the dependent claims and the description with reference to the drawings.

In one embodiment of the invention, the vehicle component is a body component or a vehicle lamp, for example a vehicle headlight, a turn signal or a tail light. By the lamp cover can thus not only protect lighting equipment in a body part, such as a sill, from falling rocks but also vehicle headlights by whirling up from a preceding vehicle Rollsplit. In another embodiment of the invention, the luminaire cover has a holding area for receiving and fixing the luminous area. The holding area is in this case formed integrally with the luminous area or attached as a separate part to the luminous area, eg glued, pressed, etc. The holding area has the advantage that it increases the stability of the luminous area and additionally simplifies installation in a body component or a vehicle lamp. For example, the holding region can be formed or provided with at least one additional fastening element, such as a flange, an undercut, a clip, etc., for attachment in or to a body component or a vehicle lamp. In addition, the holding area may additionally be at least partially opaque for lateral shielding of the luminous area.

In a further embodiment of the invention, the holding region is made of plastic with a modulus of elasticity (modulus of elasticity) in the range of 1400 to 3200 MPa, preferably 2300 to 2800 MPa, in particular of atactic polypropylene homopolymer (PP), polycarbonate (PC), polymethyl methacrylate ( PMMA) and transparent, partially transparent and / or translucent. Preferred materials are PC and PMMA, and PC is particularly preferred. Furthermore, it is preferred that the plastic can be formed in the holding region cohesively with the impact-absorbing material, for example by extrusion or injection molding, for example by a two-component injection molding process. Cohesive forming means that the material of the holding area is compatible with the impact absorbing material and that there is good adhesion between the two materials. The formation of the holding area made of plastic has the advantage that the holding area, for example, in one piece with the illuminated area of a shock absorbing material, such as KURARITY ™, can be formed. In one embodiment of the invention, the luminous area and / or the holding area are produced by injection molding. This has the advantage that the luminous area and / or the holding area can be easily and inexpensively manufactured in a wide variety of forms.

For obtaining colored light, for example below the sill, the luminous area and / or the holding area can also be colored, for example by introducing dyes into at least one of the materials of the luminous area and / or holding area, e.g. the impact absorbing material. The coloring is not limited here.

According to a further embodiment of the invention, the luminous area and the holding area are produced in one piece in a multi-component method, such as injection molding or extrusion. The multi-component method has the advantage that subsequent processes can be saved. In another embodiment of the invention, the light cover is formed with an optical lens or coupled to an optical lens of the illumination device. For example, the optical lens may be mounted in the lamp cover or molded on the lamp cover. Likewise, the luminaire cover may be formed with at least one light guide or coupled thereto. The light guide has the advantage that it can direct light of a remote light to the light cover. In one embodiment of the invention, the lighting device is integrated in the lamp cover. For this purpose, the lighting device is attached to the lamp cover and / or partially formed in this, for example. For example, the luminaires and optionally optical devices such as lenses, etc., of the illumination device can be cast into the luminaire cover at least partially or completely.

Likewise, in one embodiment of the invention, the light cover can be coupled to the illumination device of the vehicle. This has the advantage that a lighting device already present in a vehicle can be retrofitted with the light cover.

In one embodiment of the invention, the luminaire cover is made, for example, of polycarbonate (PC), atactic polypropylene (PP) and / or polymethylmethacrylate (PMA), preferably PC and / or PMMA, more preferably PC, and on its outside with at least one Coating made of the impact absorbing material. Instead of just one coating, it is also possible to provide a plurality of coatings, for example of different impact-absorbing materials and / or of the same impact-absorbing material with different Shore A and / or Shore D hardnesses. The at least one coating made of an impact-absorbing material has the advantage that the remaining luminous area or the remaining part of the luminaire cover can also be produced, for example, from hard materials such as polycarbonate (PC) and / or stress-crack-sensitive materials such as polymethylmethacrylate (PMMA) , Likewise, for example, vehicle light covers of Vehicle lights are converted or retrofitted with at least one coating of a shock absorbing material in a lamp cover according to the invention. In a further embodiment of the invention, the plastic comprises as impact-absorbing material silicone, a thermoplastic elastomer or consists of this plastic, in particular homo- or copolymers based on acrylate or methacrylate; Polypropylene copolymers; Polyethylene comprising low density polyethylene (LDPE), medium density polyethylene (MDPE), very low density polyethylene (VLDPE), ultra low density polyethylene (ULDPE); a blend of polypropylene with ethylene-propylene-diene rubber (EPDM); a mixture of polypropylene with styrene-ethylene / butylene-styrene copolymer (SEBS), a mixture of polypropylene with styrene-ethylene / propylene-styrene copolymer (SEPS), a mixture of polyethylene with ethylene-propylene-diene rubber (EPDM), a blend of polyethylene with SEBS, a blend of SEPS polyethylene, a thermoplastic polyurethane elastomer such as a thermoplastic aliphatic polyurethane, a co-polymer of a thermoplastic polyurethane elastomer, a terpolymer of a thermoplastic polyurethane elastomer, a thermoplastic polyester Elastomer, a co-polymer of a thermoplastic polyester elastomer or a terpolymer of a thermoplastic polyester elastomer. Preferred are acrylic or methacrylic based copolymers such as KURARITY ™ as well as homopolymers or copolymers based on polyurethane. It is also possible to use mixtures of the stated polymers.

A preferred combination of a shock absorbing material with a holding region material is a copolymer based on acrylic or methacrylic or a homo- or copolymer based on polyurethane, thus with PC and / or PMMA

In another embodiment of the invention, at least one body component of a vehicle has at least one light cover. The luminaire cover may have its own illumination device or be coupled to a lighting device of the body component. In one embodiment of the invention, the illumination device has at least one luminaire, in particular a light-emitting diode, a halogen lamp, a gas-discharge lamp, a light bulb or a laser. Optionally, the illumination device may comprise at least one additional optical device, such as an optical device. a lens, etc. have. Such an optical device is designed to direct the light of an associated lamp of the lighting device to bundle or scatter, depending on the function and purpose. In one embodiment of the invention, a body component of a vehicle is provided with at least one lamp cover for covering and protecting a lighting device provided on the vehicle. The lighting device is in this case for example as a separate component on the vehicle, e.g. the body component, attached or formed as part of the lamp cover. The illumination device has at least one luminaire, for example a light-emitting diode. Furthermore, the illumination device may optionally additionally comprise at least one optical device, such as e.g. a lens.

In a further embodiment of the invention, the body component, for example, a sill, a bumper or an underbody panel of the vehicle. Depending on the function and intended use, the illumination device can illuminate a specific area above the vehicle, below the vehicle, in front of the vehicle and / or behind the vehicle and be protected by the light cover from damage, in particular from falling rocks.

In one embodiment of the invention, the vehicle lamp of a vehicle has at least one lamp cover. The luminaire cover can in this case be coupled to a vehicle lamp cover of the vehicle lamp. For this purpose, a vehicle light cover can be provided, for example, with at least one coating of the impact-absorbing material, or the light cover can be arranged as a separate part in front of the vehicle light cover on the side to be protected against falling rocks. Furthermore, the vehicle lamp cover can also be replaced by the lamp cover or the lamp cover form the vehicle lamp cover of the vehicle lamp.

In a further embodiment of the invention, the vehicle lamp is, for example, a vehicle headlight, a turn signal or a tail light. According to one embodiment of the invention, the vehicle has at least one vehicle component, in particular a body component and / or a vehicle lamp, with at least one lamp cover for covering a lighting device of the vehicle. The vehicle has, for example, in the area of a front bumper, in the region of a rear bumper, between the front bumper and a front wheel arch, between the rear bumper and a rear wheel arch and / or between the rear wheel arch and the front wheel well at least one illumination device, wherein the illumination device is covered with at least one lamp cover. Thus, a plurality of areas can be illuminated below the vehicle and protected by the lamp cover, the respective lighting device from damage.

In a further embodiment of the invention, the illumination device is arranged on the vehicle to illuminate an area below and / or above the vehicle, and in front of the vehicle and / or behind the vehicle, the illumination device being covered by the at least one luminaire cover is that the lighting device can shine through the lamp cover and is protected from damage. For example, the lighting cover may be such as e.g. be provided on a rear bumper of the vehicle that it lights down to the ground below the vehicle and up towards the trunk lid. In this case, the lighting device can be covered once by a light cover down and once by a light cover up, so that the lighting device is protected from damage on its top and bottom. Likewise, the light cover may also be provided on the outside of the rear or front bumper and covered and protected by the light cover to illuminate an area behind or in front of the vehicle.

The above embodiments and developments can, if appropriate, combine with each other as desired. Further possible refinements, developments and implementations of the invention also include combinations of previously or subsequently described with respect to the embodiment which are not explicitly mentioned. Examples described features of the invention. In particular, the person skilled in the art will also add individual aspects as improvements or additions to the respective basic form of the present invention.

CONTENT OF THE DRAWING

The present invention will be explained in more detail with reference to the exemplary embodiments given in the schematic figures of the drawings. It shows:

Fig. 1 shows a vehicle with a lamp cover in one

 Side view according to an embodiment of the invention;

2 is a side view of a sill with lamp covers according to another embodiment of the invention in a sectional view. and

Fig. 3 is a bottom view of the lamp cover of FIG.

 1.

The accompanying drawings are intended to provide further understanding of the embodiments of the invention. They illustrate embodiments and, together with the description, serve to explain principles and concepts of the invention. Other embodiments and many of the stated advantages will become apparent with reference to the drawings. The elements of the drawings are not necessarily shown to scale to each other.

In the figures of the drawing, identical, functionally identical and identically acting elements, features and components are - so- nothing else carries out is -jeweils provided with the same reference numerals.

DESCRIPTION OF EMBODIMENTS

1 shows a greatly simplified side view of a vehicle 1 with a body component 20 with a lighting device 3, a vehicle light 19 with a lighting device 3 and a plurality of light covers 4 according to an embodiment of the invention. The illustration in Fig. 1 and following Figs. 2 and 3 is not to scale and purely schematic.

The light covers 4 are arranged in the embodiment in Fig. 1 in a sill as an example of a body part 20 of the vehicle 1. In addition, a lamp cover 4 replaces a vehicle lamp cover of the vehicle lamp 19. The sill 20 represents an example of a vehicle component 2, the sill 20 having the illumination device 3 for illuminating the underlying area, e.g. the bottom 5 below the door entry of the vehicle 1. The lighting device 3 is covered by the light covers 4 and protected from stone chipping. As described below, the lighting device 3 may be part of the lamp covers 4 or as shown in Fig. 1, be coupled with these as a separate part.

As described above, a sill is an area of the self-supporting body of a vehicle and is located below the door entry, along both sides of the vehicle. between the front and rear wheel arches. The lamp covers 4 may be provided in addition to or as an alternative to the sill 20, for example in the area or in the rear bumper 6 and connected to a lighting device or coupled to illuminate the bottom 5 in the area of the vehicle trunk. Furthermore, the lamp covers 4 may be provided in the area or in the front bumper 7 and connected or coupled to a lighting device for illuminating the floor 5 in the area of the front bumper 7. In addition, the lamp covers 4 can also be mounted on a body component between the front bumper front wheel arch 8 and the front bumper 7 and / or between the rear wheel arch 9 and the rear bumper 6 are provided and connected to a lighting device or coupled to illuminate this area of the vehicle 1. The invention is not limited to the said positions for the arrangement of the lamp covers 4. Likewise, the light cover 4 can also be provided as part of a vehicle light 19, for example of the headlight shown in FIG. 1, a turn signal, a tail light, etc. and form, be coupled with or replace a vehicle light cover, as in the exemplary embodiment in FIG Fig. 1 is shown. For example, the vehicle lamp cover may be provided with at least one additional coating of a shock absorbing material to provide a light cover 4 according to the invention for covering and protecting the lighting device 3 of the vehicle light 19. The vehicle light cover can be retrofitted by means of the at least one additional coating of a shock absorbing material and thus act as a light cover 4 according to the invention. The light cover 4 can be arranged on any other body component of the vehicle 1 and connected to a lighting device 3 or coupled, depending on the function and purpose.

As indicated by a chain line in Fig. 1, the lighting device 3 may be provided on the vehicle 1, e.g. on the rear bumper 6, not only to one side but to e.g. two pages or here up and down lights. Accordingly, a lamp cover, not shown, may be provided on the top and bottom of the bumper 6 to protect the lighting device 3 from damage from both sides.

Furthermore, as indicated by a dot-dash line in FIG. 1, the illumination device 3 may also be located on the front side, e.g. the front bumper 7, are provided and emit light forward. In this case, the luminaire cover, not shown, is provided at the front or on the outside of the lighting device 3 in order to protect it from damage.

The illumination device 3 has at least one light 10, for example a light-emitting diode (LED), etc., and optionally at least one additional optical device 11 and / or at least one additional light guide. The luminaire 10, the optical waveguide and / or the optical device 11, for example a diffusing lens 12, can be connected to the luminaire cover 4 and formed as part of the luminaire cover 4. For this purpose, the luminaire 10, the optical waveguide and / or the optical device 11, 12 is attached to the luminaire cover 4, cast into it or cast in it. forms. As indicated by a dashed line in Fig. 1, the lamp cover 4 may be formed or formed with a scattering lens 12. By means of the optical fiber, not shown, light of the lamp 10 can be led to the light cover 4, for example, if the lamp 10 is located away from the lamp cover 4 in the vehicle.

Likewise, the lighting device 3 may also be coupled as a separate part with the lamp cover 4. For this purpose, the lighting device 3 is attached to the vehicle 1 as a separate part, as indicated in Fig. 1, and is covered by means of the lamp cover 4, which is also attached to the vehicle 1.

Instead of a light-emitting diode (LED) as a luminaire 10, the lighting device 3 can also have any other luminaire or combination of luminaires which is or are, through a transparent, translucent or partially transparent luminous area 13 of the luminaire cover 4 through an underlying area or Floor 5 to illuminate, for example, a Haloganlampe, a Gasentla ¬ tion lamp, a laser, a light bulb, an organic light emitting diode (OLED), etc .. As an optical device 11, for example, a lens, for example, scattering lens 12 may be provided or another optical device for Sprinkle or bundle light. As a light guide, for example, a glass fiber or a plurality of optical fibers, a fiber optic cable can be provided.

As shown in FIG. 1, the illumination device 3 is connected via a line system 14 to a power source 15 of the vehicle 1 for supplying the illumination device. 3 and their lights 10 with power, so that they can radiate through the transparent, translucent or semi-transparent light area 13 of the light cover 4 through.

The luminaire cover 4 has a transparent or at least partially transparent and / or translucent luminous area 13 and a holding area 21, in which the luminous area 13 is received and held. The luminaire cover is fastened to a vehicle component 2 by means of the holding region 21. The transparent or at least partially transparent and / or translucent lighting region 13 allows light to pass through the lighting device 3 and illuminate an underlying area or floor 5. The partially transparent and / or translucent luminous area 13 is designed to be sufficiently translucent, so that sufficient light from at least one luminaire 10 can pass through the luminous area 13 and illuminate an area or floor 5 below it appropriately.

In this case, the holding region 21, as shown in FIG. 1, optionally additionally be formed at least partially opaque in order to shield the luminous region 13 laterally. The holding region 21 can be formed integrally with the luminous region 13 or attached to it as a separate part. The holding region 21 can be designed to be at least partially transparent or translucent and, for example, opaque, for example, in order to darken the light correspondingly to edge regions of the luminous region 13. The holding portion 21 may be formed of any materials.

On one side of the luminous area 13, here the top 17 in FIG. 1, at least one luminaire 10 of the lighting Device 3 is provided for illuminating through the luminous area 13 through an area below the luminous area 13, here for example the floor 5, on which the vehicle 1 is located.

The luminaire cover 4 with its luminous area 13 and holding area 21, which may optionally be opaque, is used to illuminate, for example, the floor 5 in FIG. 1 in an opening 18 of the sill 20 opposite its lighting device 3 and fixed, e.g. glued, screwed, pressed, latched, hung, etc. The invention is directed to the said methods of attaching the light cover 4 to a vehicle component 2, such as e.g. an opening 18 in a sill 20, not limited. Any other method of fastening may be provided which is suitable for firmly connecting the light cover 4 to the vehicle component 2. Also, the light cover 4 does not necessarily have to be fixed in an opening 18 of a body component 20 or other vehicle component 2, but can be attached to the vehicle component 2 or body component 20 opposite the associated illumination device 3 in any suitable manner.

Further, the holding portion 21 of the lamp cover 4 for attachment to a body member 20, for example, with an additional flange, not shown, an additional not shown undercut, cylindrical as shown in Fig. 1, 2 and 3, or tapered, etc., depending on Type of attachment to the vehicle component 2. The representation of the lamp cover 4 in Fig. 1 and subsequent Figs. 2 and 3 is purely schematic and greatly simplified, and not to scale. Likewise, it is also conceivable, the lamp cover 4 in one piece with a vehicle component 2, for example, a body component o- of a bumper made of plastic, form. The respective transparent, translucent or partially transparent luminous region 13 of the luminous cover 4 is made of a soft or impact-absorbing transparent, translucent or partially transparent material, as shown in FIG. 1, or has this, as shown in FIG. 2 below.

For example, KURARITY ™, an acrylic-based tri-block or biclock polymer from Kuraray Europe GmbH, for example KURARITY ™ LA2250 with a Shore A hardness of 65, or a thermoplastic aliphatic polyurethane such as KURARITY ™ LA2250, is used as impact-absorbing material or impact-absorbing plastic. Desmopan DP 89785. Such a soft impact absorbing transparent, translucent or partially transparent plastic has the advantage that it can absorb rock impact, in contrast to the rather hard polycarbonate, which is used so far.

The KURARITY ™ material from Kuraray or the thermoplastic aliphatic polyurethane has the advantage that it is transparent, translucent or semi-transparent and impact-absorbing. Furthermore, the materials are suitable for injection molding, for example. In addition to the materials mentioned, according to the invention, any other material or combination of materials may be used which is transparent, translucent or partially / semi-transparent and suitably soft, on the one hand to be impact-absorbing and, on the other hand, used for the luminous area of a luminaire cover become. The transparent, translucent or partially transparent luminous area 13 can also be made of a further plastic having a Shore A hardness in a range of 40 to 90 according to DIN EN ISO 868 and / or of a plastic having a Shore D hardness in a range of 25 to Be produced according to DIN EN ISO 868 or have this.

As a plastic, for example, silicone, a thermoplastic elastomer (TE), in particular homo- or copolymer based on acrylate or methacrylate; Polypropylene copolymers; Polyethylene comprising low density polyethylene (LDPE), medium density polyethylene (MDPE), very low density polyethylene (VLDPE), ultra low density polyethylene (ULDPE); a blend of polypropylene with ethylene-propylene-diene rubber (EPDM); a mixture of polypropylene with styrene-ethylene / butylene-styrene copolymer (SEBS), a mixture of polypropylene with styrene-ethylene / propylene-styrene copolymer (SEPS), a mixture of polyethylene with ethylene propylene Diene_Kautsch.uk (EPDM ), a blend of polyethylene with SEBS, a blend of polyethylene with SEPS, a thermoplastic polyurethane elastomer such as a thermoplastic aliphatic polyurethane, a co-polymer of a thermoplastic polyurethane elastomer, a terpolymer of a thermoplastic polyurethane elastomer thermoplastic polyester elastomer, a copolymer of a thermoplastic polyester elastomer or a terpolymer of a thermoplastic polyester elastomer having the hardness of Shore A described above in a range of 40 to 90 or having a hardness of Shore D in a range of 25 to 60 be provided according to DIN EN ISO 868. Preference is given to copolymers based on acrylic or methacrylic such as, for example, KURARITY ™ as well as homopolymers or copolymers based on polyisocyanates. lyurethane-based. It is also possible to use mixtures of the stated polymers.

Also included are chemically reactive compositions of two or more components to provide crosslinked elastomers based on polyurethane (PU) or polyester having the Shore A hardness described above in a range of 40 to 90 or Shore D hardness in the range from 25 to 60 according to DIN EN ISO 868.

The holding portion 21 of the luminous cover 4 may be e.g. from a thermoplastic elastomer (TPE), such as polypropylene (PP), polymethyl methacrylate (PMMA), polycarbonate (PC), polyethylene (PE), polyurethane (PU), etc., are produced. In this case, the holding portion 21 additionally dyed and e.g. be formed opaque or opaque.

As a production method for producing the luminaire cover 4, for example with a holding region made of, for example, polypropylene (PP) or polycarbonate, and a luminous region 13, for example made of KURARITY ™ or a thermoplastic aliphatic polyurethane, a multicomponent process, for example extrusion processes or injection molding processes, such as a two-component or three-component injection molding process or a 2K or 3K process can be used. The multi-component process, eg injection molding or extrusion, has the advantage that subsequent processes can be saved. However, the invention is not limited to an injection molding or extrusion process. Any other method suitable for producing a luminaire cover 4 can be used, the luminaire cover 4, as described above, consisting of at least one or two materials. The luminaire area 13 of the luminaire cover 4 can optionally additionally be formed, for example, with an optical lens, in particular a diffuser lens 12, as indicated by a dashed line in FIG. 1.

In Fig. 2 is a side view of a rocker 20 with lamp covers 4 according to a further embodiment of the invention in a sectional view is shown.

The sill 20 comprises a lighting device 3 with a plurality of lights 10, e.g. Light-emitting diodes, which in each case shine through an associated opening 18 of the sill 20, in order, in the embodiment in FIG. to illuminate an area below the sill 20. To protect the lighting device 3 and its lights 10 lamp covers 4 are provided, which are each arranged or fixed in the associated opening 18 of the sill 20.

The respective luminaire cover 4 in this case has an at least partially transparent or translucent luminous area 13 and an at least partially transparent or translucent holding area 21, through which the illuminating device 3 can shine and in FIG. 2 can illuminate the area below the rocker 20. The luminous area 13 and the holding area 21 are produced, for example, from an at least partly transparent or translucent material.

Optionally, the luminous area 13 made of a partially transparent or translucent material may additionally be provided with an optical device 11, for example a diffusing lens 12, be formed or formed, as indicated in Fig. 2 with a dashed line.

Preferably, the luminous area 13 and the holding area 21 are integrally formed, for example by a two-component injection molding process, when different materials are used to achieve good adhesion between the materials. In one of the luminaire covers 4 in FIG. 2, only the luminous area 13 on the side to be protected against stone impact has a protective layer / coating of a shock-absorbing material. By contrast, the other luminaire cover 4 has a full-surface coating of the side to be protected against stone chipping. In this case, the luminous area 13 and the holding area 21 are provided on the side to be protected against stone impact with a protective layer / coating of a shock-absorbing material. This impact-absorbing material is a plastic with a hardness Shore A in a range of 40 to 90 according to DIN EN ISO 868 or a plastic with a hardness Shore D in a range of 25 to 60 according to DIN EN ISO 868. By at least one Coating of a shock-absorbing material, the luminous area 13 and / or the holding portion 21 also at least, for example a hard and / or stress crack sensitive material, such as polycarbonate (PC) or polymethylmethacrylate (PMMA) are produced without the lamp cover 4 is damaged abrasive, such as conventional lamp covers, which consist exclusively of polycarbonate or polymethyl methacrylate.

Instead of a coating, at least the luminous area 13 can also be made of at least two different coatings impact-absorbing materials and / or from the same impact-absorbing material, however, be provided with a different Shore-A or Shore-D hardness. In this case, the coatings can be arranged or stacked on the side of the luminaire cover to be protected from stone impact, for example in their Shore A or Shore D hardness, depending on the function and intended use.

In the embodiment shown in Fig. 2, each of the lights 10 has e.g. a separate light cover 4. Likewise, the lights 10 but also have a common light cover 4, as indicated by a dash-dotted line in Fig. 2. The lamp covers 4 in the embodiment in Fig. 2 have e.g. a holding portion 21 with a flange 22, for suspending the lamp covers 4 in the openings 18 in the sill 20

Optionally, in addition, the holding regions 21 of the luminous covers 4 can each be formed at least partially opaque, as described above with reference to FIG. 1, in order to shield the luminous region 13 laterally.

In Fig. 3 is a bottom view of the sill 20 and the lamp covers 4 shown in FIG. 1. In the sill 20, for example, three lamp covers 4 are attached. At least one light 10, for example a light-emitting diode (LED), of a lighting device 3 is provided on the rear side of the respective light cover 4. In one of the luminous covers 4, the holding region 21 is additionally formed in an opaque fashion around the luminous area 13 in order to shield the luminous area 13 laterally. The holding region 21 is provided in the example shown in FIG. 3 annularly or circumferentially around the luminous region 13 and can, as described above, be formed opaque, for example. The cross section of the luminous regions 13 in FIG. 3 is, for example, circular and the cross section of the holding region 21 is, for example, annular. The invention is not limited to circular and annular cross-sections. The luminous areas 13 and optionally a surrounding holding area 21 can have any cross-section.

As described above with reference to FIG. 1, the luminous area 13 is made, for example, completely of at least one impact-absorbing material made of a plastic having a hardness Shore A in a range from 40 to 90 according to DIN EN ISO 868 or a plastic having a hardness Shore D. manufactured in a range of 25 to 60 according to DIN EN ISO 868. Alternatively, the luminous area 13 can also only have at least one coating of the impact-absorbing material on the side to be protected against stone impact in order to protect it from damage, the coating being made of a plastic having a Shore A hardness in a range from 40 to 90 according to DIN EN ISO 868 or from a plastic with a hardness Shore D in a range from 25 to 60 according to DIN EN ISO 868.

If the luminous area 13 only has at least one coating of an impact-absorbing material, as described above with reference to FIG. 2, a holding region 21 (not shown) located behind it can be made of a thermoplastic elastomer (TPE), for example polypropylene (PP). , Polymethylmethacrylate (PMMA), polycarbonate (PC), polyethylene (PE), polyurethane (PU), etc., and may be at least partially transparent or translucent or, for example, opaque. Furthermore, the holding region 21 may, for example, be integral with the luminous region 13 trained and glued in the associated opening 18 of the sill 2, for example. In principle, the holder area 21 can also be formed as a separate part, in which the luminous area 13 is subsequently fastened.

Although the present invention has been fully described above with reference to preferred embodiments, it is not limited thereto but is modifiable in a variety of ways.

LIST OF REFERENCE NUMBERS

1 vehicle

 2 vehicle component

 3 lighting device

 4 light cover

 5 floor

 6 rear bumper

 7 front bumper

 8 front wheel arch

9 rear wheel arch

 10 light

 11 optical device

 12 scattering lens

 13 lighting area

 14 pipe system

 15 power source

 17 top

 18 opening

 19 vehicle light

 20 body component (e.g., sill

21 holding area

 22 flange

Claims

PATEN CLAIMS
1. Stoneshielded luminaire cover (4) for covering a lighting device (3) in a vehicle component (2) of a vehicle (1), wherein the lamp cover (4) has an at least partially transparent luminous area (13) through which the lighting device (3) The luminous region (13) is made of at least one impact-absorbing material or has at least one coating of an impact-absorbing material, wherein the impact-absorbing material is a plastic having a hardness Shore A in a range of 40 to 90, or a plastic having a hardness Shore D is in a range of 25 to 60.
2. Luminaire cover according to claim 1,
characterized,
in that the vehicle component (2) is a body component (20) or a bumper (6, 7), a vehicle lamp (19), in particular a vehicle headlight, a turn signal or a tail light.
3. Luminaire cover according to claim 1 or 2,
characterized,
in that the luminaire cover (4) has a holding region (21) for holding and fixing the luminous region (13), wherein the holding region (21) is formed integrally with the luminous region (13) or is attached as a separate part to the luminous region (13). , Luminaire cover according to claim 3,
characterized, the holding region (21) is made of plastic, in particular of polypropylene, polycarbonate and / or polymethyl methacrylate, and preferably transparent, partially transparent, translucent and / or at least partially opaque.
5. lamp cover according to one of the preceding claims, characterized
that the luminous area (13) and / or the holding area (21) is / are produced by injection molding.
6. Luminaire cover according to one of claims 3 to 5, characterized
the luminous area (13) and the holding area (21) are produced in one piece in a multi-component method, in particular an injection molding method or extrusion method.
7. Luminaire cover according to one of the preceding claims, characterized in that
the luminaire cover (4) is formed with an optical device (11) and / or at least one optical waveguide or is coupled with at least one optical waveguide and / or with an optical device (11) of the illumination device (3).
8. Luminaire cover according to one of the preceding claims, characterized
the lighting device (3) is integrated in the lamp cover (4) or the lamp cover (4) can be coupled to the lighting device (3) of the vehicle (1).
9. Luminaire cover according to one of the preceding claims, characterized in that in that the luminaire cover (4) is made of polycarbonate, polypropylene and / or polymethyl methacrylate and on its outside at least the luminous area (13) is provided with the impact-absorbing material.
10. Luminaire cover according to one of the preceding claims, characterized in that
that the plastic as impact-absorbing material is silicone, a thermoplastic elastomer or comprises a thermoplastic elastomer, in particular a homo- or copolymer based on acrylate or methacrylate; Polypropylene copolymer; Polyethylene comprising low density polyethylene (LDPE), high density polyethylene (HDPE), medium density polyethylene (MDPE), very low density polyethylene (VLDPE), ultra low density polyethylene (ULDPE); a blend of polypropylene with ethylene-propylene-diene rubber (EPDM); a mixture of polypropylene with styrene-ethylene / butylene-styrene copolymer (SEBS), a mixture of polypropylene with styrene-ethylene / propylene-styrene copolymer (SEPS), a mixture of polyethylene with ethylene-propylene-diene rubber (EPDM), a blend of polyethylene with SEBS, a blend of SEPS polyethylene, a thermoplastic polyurethane elastomer such as a thermoplastic aliphatic polyurethane, a co-polymer of a thermoplastic polyurethane elastomer, a terpolymer of a thermoplastic polyurethane elastomer, a thermoplastic polyester Elastomer, a co-polymer of a thermoplastic polyester elastomer or a terpolymer of a thermoplastic polyester elastomer.
11. Vehicle component (2) of a vehicle (1),
with at least one light cover (4) according to one of the preceding claims.
12. Vehicle component according to claim 11,
characterized ,
in that the vehicle component (2) or the lamp cover (4) has the illumination device (3), wherein the illumination device (3) comprises at least one lamp (10), in particular a light-emitting diode, a halogen lamp, a gas charging lamp, a light bulb or a laser, and preferably at least one optical device (11) and / or at least one optical fiber.
13. Vehicle component according to claim 11 or 12,
characterized ,
in that the vehicle component (2) is a vehicle light (19), a bumper (6, 7) or a body component (20), in particular a sill (2) or an underbody panel of the vehicle (1).
14. Vehicle lamp of a vehicle (1),
with at least one light cover (4) according to one of claims 1 to 10.
15. A vehicle lamp according to claim 14,
characterized,
in that the lamp cover (4) is coupled to a vehicle lamp cover of the vehicle lamp (19) or forms the vehicle lamp cover of the vehicle lamp (19).
16. A vehicle lamp according to claim 14 or 15,
characterized,
in that the vehicle lamp (19) is a vehicle headlight, a turn signal or a tail light.
17. Vehicle, in particular motor vehicle,
with at least one vehicle component (2) according to one of Claims 11 to 13 and / or a vehicle lamp (19) according to one of Claims 14 to 16.
18. Vehicle according to claim 17,
characterized ,
in that the vehicle (1) is located in the region of a front bumper (7), in the region of a rear bumper (6), between the front bumper (7) and a front wheel arch (8), between the rear bumper (6) and a rear wheel arch (9) and / or between the rear wheel arch (9) and the front wheel arch (8) has at least one illumination device (3), wherein the illumination device (3) with at least one lamp cover (4) is covered.
19. Vehicle according to claim 18,
characterized ,
the illumination device (3) is arranged on the vehicle (1) to illuminate an area below and / or above the vehicle (1), the illumination device (3) being covered by the at least one lamp cover (4) such that the lighting device (3) on the one hand through the light cover (4) and on the other hand is protected against damage.
PCT/EP2014/068948 2013-09-19 2014-09-05 Lamp cover, vehicle component and vehicle WO2015039893A1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
DE201310218850 DE102013218850A1 (en) 2013-09-19 2013-09-19 Luminaire cover, vehicle component and vehicle
DE102013218850.1 2013-09-19

Publications (1)

Publication Number Publication Date
WO2015039893A1 true WO2015039893A1 (en) 2015-03-26

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Country Status (2)

Country Link
DE (1) DE102013218850A1 (en)
WO (1) WO2015039893A1 (en)

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JP2001052512A (en) * 1999-08-09 2001-02-23 Ichikoh Ind Ltd Device for vehicle
EP1145903A1 (en) * 2000-03-24 2001-10-17 Ichikoh Industries Limited Car lighting Fixture lens structure and manufacturing method thereof
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DE102018106259B4 (en) 2018-03-16 2020-06-18 Novem Car Interior Design Gmbh Molding and method for producing a molding

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