# Patent

## Title
Lining part and method for producing a lining part

## Abstract

A lining part, in particular for the interior of a motor vehicle, has a base body which is formed of a wood material. Slip-prevention elements which have a higher adhesion force than the surface of the base body are located on the surface of the base body.

## Background
CROSS REFERENCE TO RELATED APPLICATIONS
This application is based on and hereby claims priority to International Application No. PCT/EP2012/003619 filed on Aug. 29, 2012 and German Application No. 10 2011 112 135.1 filed on Sep. 1, 2011, the contents of which are hereby incorporated by reference.
BACKGROUND
The invention relates to a method for producing a trim part.
A decorative part having a multiple-piece surface, the surface parts of which penetrate one another mutually, is known from DE 10 2007 028 711 A1. Said document also describes that it is possible to overmold the decorative panel with an injection molding material.
FR 2 868 733 A1 describes a material which is suitable as inner lining of an automobile and has a decorative wooden sheet with a covering layer made from a transparent thermoplastic material on the visible side and a thermoplastic covering layer on the rear side.
A further trim part is known from DE 299 12 270 U1. In particular in motor vehicles of the medium and luxury class, wooden materials are used very frequently in the interior on account of their visually and haptically high-quality effect. These are usually trim parts which are arranged in a vertical or at least approximately vertical plane, since wooden surfaces are usually very smooth and objects which are arranged on a horizontal wooden surface can slide very easily and in the process can also damage the wooden surface.
DE 10 2009 036 680 A1 describes a motor-vehicle interior trim having a wooden or veneer element which has a lamination and an engraved design which penetrates the lamination. The engraved design is intended to impart a decorative surface to the wooden veneer element. However, this is a very complicated process which causes high costs and can therefore only be used in vehicles located in the highest price segment.
SUMMARY
It is therefore an object of the present invention to provide a method for producing a trim part, which method is associated with comparatively low outlay.
The inventor proposes a method for producing a method for producing a trim part, in particular for the interior of a motor vehicle, anti-slip elements being attached to a main body which is composed of a wooden material, which anti-slip elements have a greater static friction than the surface of the main body, recesses being made in the main body, the anti-slip elements being introduced into the recesses, and the main body having respective edges which protrude beyond the recesses in the longitudinal direction and are severed after the introduction of the anti-slip elements into the recesses. The method for producing the trim part which is particularly simple and suitable for series production, by way of which method the advantages with regard to the improved adhesion and the resulting staying in position of objects on the trim part even during driving can be achieved.
The method produces a trim part, in which the anti-slip elements run over the entire main body in the longitudinal direction and do not end until the edges of said main body.



BRIEF DESCRIPTION OF THE DRAWINGS
These and other objects and advantages of the present invention will become more apparent and more readily appreciated from the following description of the preferred embodiments, taken in conjunction with the accompanying drawings of which:
FIG. 1 shows a plan view of a trim part according to one potential embodiment of the inventor's proposal, which is installed in the interior of a motor vehicle,
FIG. 2 shows a section according to the line II-II from FIG. 1,
FIG. 3 shows a first state of the trim part during one potential embodiment of the proposed method for producing it, and
FIG. 4 shows a second state of the trim part during one potential embodiment of the proposed method for producing it.



DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT
Reference will now be made in detail to the preferred embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to like elements throughout.
FIG. 1 shows a plan view of a trim part 1 which is provided, in particular, for the interior of a motor vehicle, the entirety of which is not shown. In the present case, the trim part 1 is configured as a bearing face of the center console 2 (shown very diagrammatically) of the motor vehicle and is arranged in a substantially horizontally oriented plane. In principle, it is possible, however, to also attach the trim part 1 at other locations of the interior and to arrange it in a differently oriented plane.
It is apparent from FIG. 1 that the trim part 1 has a main body 3 which, in the present case, is composed of a wooden material, for example of a veneer. A plurality of anti-slip elements 4 which run parallel to one another in the longitudinal direction which is denoted by “x” are situated on the surface of the main body 3, which anti-slip elements 4 have a greater static friction than the surface of the main body 3. The anti-slip elements 4 are therefore configured in the form of strips which run at least approximately in a straight line, which results in the visual appearance of a sliced veneer. The anti-slip elements 4 are preferably composed of a rubber-like plastic which ensures a sufficient adhesion of objects which are mounted on the surface of the trim part 1. However, other, in particular adhesive, materials may also be suitable for the anti-slip elements 4, in order to achieve a greater adhesion than that of the surface of the main body 3.
It can be seen in FIG. 2 that the main body 3 has a plurality of slot-like recesses 5 which are arranged next to one another and in which the anti-slip elements 4 are arranged. In the present case, the main body 3 is overmolded with the material which forms the anti-slip elements 4, and the anti-slip elements 4 penetrate the recesses 5. Here, all the anti-slip elements 4 are connected to one another via a carrier body 6 which is situated behind the main body 3 of the trim part 1. The carrier body 6 imparts a certain cohesion to the trim part 1. Furthermore, it is apparent from this section according to FIG. 2 that the anti-slip elements 4 protrude beyond the surface of the main body 3, which results in a particularly satisfactory adhesion affect.
During the production of the trim part 1, the anti-slip elements 4 are in principle attached to the main body 3, the main body 3 preferably being overmolded with the material which forms the anti-slip elements 4. The material which forms the anti-slip elements 4 penetrates the recesses 5 and so much material is preferably overmolded that the anti-slip elements 4 protrude beyond the surface of the main body 3. To this end, the main body 3 can be inserted into a mold (not shown) which has corresponding recesses for receiving the material which forms the anti-slip elements 4. In the present case, in which all the anti-slip elements 4 are connected to one another via the carrier body 6, the main body 3 is also overmolded with the material, preferably with a rubber-like plastic, which forms the carrier body 6.
The recesses 5 are preferably made in the main body 3 before the latter is overmolded, for example by milling or another suitable process. The anti-slip elements 4 are subsequently introduced into the recesses 5.
It is apparent from FIG. 3 that the main body 3 has respective edges 7 which protrude beyond the recesses 5 in the longitudinal direction x and are severed after the introduction of the anti-slip elements 4 into the recesses 5, which severing can be carried out, for example, by sawing or milling. As a result, the trim part 1 which is shown in FIG. 4 is obtained, in which trim part 1 the anti-slip elements 4 run over the entire main body 3 in the longitudinal direction x and do not end until the edges of said main body 3.
The invention has been described in detail with particular reference to preferred embodiments thereof and examples, but it will be understood that variations and modifications can be effected within the spirit and scope of the invention covered by the claims which may include the phrase “at least one of A, B and C” as an alternative expression that means one or more of A, B and C may be used, contrary to the holding in Superguide v. DIRECTV, 69 USPQ2d 1865 (Fed. Cir. 2004).

## Claims

1. A method for producing a trim part, for an interior of a motor vehicle, comprising:
providing a main body formed of a wood material, the main body having a surface;
forming recesses in the main body such that the main body has edges which protrude beyond the recesses in a longitudinal direction;
attaching anti-slip elements to the main body by introducing the anti-slip elements into the recesses in the main body, the anti-slip elements having a greater static friction than the surface of the main body;
after introducing the anti-slip elements, severing the edges of the main body which protrude beyond the recesses in the longitudinal direction, wherein
the recesses extend in the longitudinal direction up to the edges of the main body, and
after the edges of the main body are severed, the recesses extend to ends of the main body.

2. The method as claimed in claim 1, wherein
the main body is overmolded with a material which forms the anti-slip elements, and
the material which forms the anti-slip elements penetrates the recesses.

3. The method as claimed in claim 1, wherein
the main body has a passenger-compartment-exposed surface and a mounting surface,
the anti-slip elements have a greater static friction than the passenger-compartment-exposed surface,
injection molding is used to introduce the anti-slip elements into the recesses in the main body,
during injection molding, a material which forms the anti-slip elements is injected from mounting surface side of the main body,
the recesses extend through the main body, from the passenger-compartment-exposed surface to the mounting surface,
injection molding is performed using a mold which has cavities corresponding to the recesses in the main body, and
the cavities are filled with the material which forms the anti-slip elements during injection molding such that after injection molding, the anti-slip elements protrude from the passenger-compartment-exposed surface of the main body.

4. The method as claimed in claim 3, wherein
the recesses are substantially parallel strips.

5. The method as claimed in claim 1, wherein
the main body has a passenger-compartment-exposed surface and a mounting surface, and
the anti-slip elements have a greater static friction than the passenger-compartment-exposed surface.

6. The method as claimed in claim 5, wherein
the recesses extend through the main body, from the passenger-compartment-exposed surface to the mounting surface.

7. The method as claimed in claim 5, wherein
injection molding is used to introduce the anti-slip elements into the recesses in the main body, and
during injection molding, a material which forms the anti-slip elements is injected from a mounting surface side of the main body.

8. The method as claimed in claim 7, wherein
the recesses extend through the main body, from the passenger-compartment-exposed surface to the mounting surface,
injection molding is performed using a mold which has cavities corresponding to the recesses in the main body, and
the cavities are filled with the material which forms the anti-slip elements during injection molding such that after injection molding the anti-slip elements protrude from the passenger-compartment-exposed surface of the main body.

9. The method as claimed in claim 5,
wherein anti-slip elements protrude from the passenger-compartment-exposed surface.

10. The method as claimed in claim 1, wherein
the anti-slip elements are formed of a synthetic rubber.

11. The method as claimed in claim 1, wherein
the recesses are substantially parallel strips.

12. The method as claimed in claim 1, wherein
the main body is a veneer, and
a sliced veneer is produced when the recesses are formed in the main body.