阅读说明：本技术 制造眼镜架的多层元件、制造该多层元件的方法以及包括一个或更多个多层元件的眼镜架 (Multi-layer element for manufacturing a spectacle frame, method for manufacturing such a multi-layer element and spectacle frame comprising one or more multi-layer elements ) 是由 奥尔费奥·赛钦 于 2020-02-14 设计创作，主要内容包括：一种用于制造眼镜架(1)的多层元件(10),包括至少一个聚合物材料(5)的层。多层元件(10)是眼镜架(1)的前件(2)或侧件(3)。此外,多层元件(10)包括至少一个金属材料(6)的层,该金属材料(6)的层借助于粘合剂材料(7)的层接合至聚合物材料(5)的层。本发明还涉及包括一个或更多个多层元件(10)的眼镜架(1)以及用于制造多层元件(10)的方法。(A multilayer element (10) for manufacturing a spectacle frame (1) comprises at least one layer of polymer material (5). The multi-layer element (10) is a front part (2) or a side part (3) of the spectacle frame (1). Furthermore, the multilayer element (10) comprises at least one layer of a metallic material (6), which layer of metallic material (6) is joined to a layer of a polymer material (5) by means of a layer of an adhesive material (7). The invention also relates to a spectacle frame (1) comprising one or more multilayer elements (10) and to a method for manufacturing a multilayer element (10).)

1. A multilayer element (10) for manufacturing a spectacle frame, said multilayer element (10) comprising at least one layer of polymer material (5);

wherein the multilayered element (10) is a front piece (2) or a side piece (3) of the spectacle frame (1);

characterized in that the multilayer element (10) comprises at least one layer of metal material (6), the layer of metal material (6) being joined to the layer of polymer material (5) by means of a layer of adhesive material (7).

2. A multilayer element (10) according to claim 1, characterized in that said layer of adhesive material (7) is placed between the joining surface (5A) of said layer of polymer material (5) and the joining surface (6A) of said layer of metal material (6); the joining surfaces (5A, 6A) have surface roughness values different from each other.

3. A multilayer element (10) according to claim 2, characterized in that the surface roughness value of said joining surface (5A) of said at least one layer of polymeric material (5) is comprised between 1 μ ι η and 3.4 μ ι η.

4. A multilayer element (10) according to claim 2, characterized in that the surface roughness value of said joining surface (6A) of said at least one layer of metallic material (6) is comprised between 0.8 μ ι η and 3.2 μ ι η.

5. A multilayer element (10) according to claim 1, characterized in that said polymeric material (5) is cellulose acetate.

6. A multilayer element (10) according to claim 1, characterized in that said metallic material (6) is selected from the group comprising aluminium, stainless steel, brass, titanium, bronze and copper.

7. A multilayer element (10) according to claim 1, characterized in that the adhesive material (7) is acrylic, modified acrylic, epoxy or acrylic-epoxy mixture and contains a catalyst.

8. An eyeglass frame (1) comprising:

-a front piece (2);

-a pair of side pieces (3), said side pieces (3) being joined to the ends of the front piece (2);

characterized in that the front piece (2) and/or the side piece (3) are formed by a multilayer element (10), the multilayer element (10) comprising at least one layer of polymer material (5) and at least one layer of metal material (6) joined together by means of a layer of adhesive material (7), the layer of metal material (6) being arranged on an outer surface (2B; 3B) of the front piece (2) and/or the side piece (3).

9. Method for manufacturing a multilayer element (10) for producing a spectacle frame (1), comprising the steps of:

a) cutting the sheet of polymeric material to obtain a layer of polymeric material (5) having a predetermined profile;

b) cutting the sheet of metal material to obtain a layer of metal material (6) having a predetermined profile;

c) applying a layer of adhesive material (7) on the joining surface (5A) of the layer of polymer material (5) and/or on the joining surface (6A) of the layer of metal material (6);

d) -positioning the layer of metallic material (6) on the joining surface (5A) of the layer of polymeric material (5), the layer of adhesive material (7) having been previously applied on the joining surface (5A), or positioning the layer of polymeric material (5) on the joining surface (6A) of the layer of metallic material (6), the layer of adhesive material (7) having been previously applied on the joining surface (6A);

e) -pressing and gluing the layer of polymeric material (5) and the layer of metallic material (6) to produce a multilayer semi-finished product (110);

f) -machining said multilayer semi-finished product (110) to produce said multilayer element (10);

wherein the multilayered element (10) defines the front piece (2) and/or the side piece (3) of the spectacle frame (1).

10. Method according to claim 9, characterized in that, before said step c), a step g) is provided for sandblasting the joining surfaces (5A, 6A) of the layer of polymeric material (5) and of the layer of metallic material (6), said joining surfaces (5A, 6A) being designed to come into contact with the layer of adhesive material (7).

11. The method according to claim 10, characterized in that, after said step g), a step h) is provided for cleaning the joining surfaces (5A, 6A) of the layer of polymeric material (5) and of the layer of metallic material (6) which have previously undergone sandblasting.