IPC分类号：
A63H33/08 | B29C64/00 | B33Y80/00
当前申请(专利权)人地址：
Aastvej 1, Billund, DK
发明人：
JOHANSEN, LOUISE TOSTI | SCHLICHTING, RAPHAEL | HADAR, RONEN | MIKKELSEN, RENÉ
代理机构：
GUARDIAN IP CONSULTING I/S
摘要：
The present invention relates to a method for the manufacture of a toy building element made of a polymeric material using an additive manufacturing technique as the manufacturing process. The present invention also relates to a toy building element produced by said additive manufacturing process.
技术问题语段：
The patent text discusses the need for improved additive manufacturing techniques that can create toy building elements with precise dimensions, smooth surfaces, and acceptable appearance. The current filament extrusion-based additive manufacturing technique is not precise enough to produce complex geometries and can result in uneven surfaces and separate layers. The technical problem is to develop or modify additive manufacturing techniques that can build toy building elements with high precision and acceptable appearance.
技术功效语段：
The present invention is about a new way to make toy building elements using 3D printing. The method improves the precision, smoothness, and appearance of the surface of the building elements, making them look better without additional materials. The invention is directed to a method for making toy building elements and the resulting building elements made using this method.
权利要求：
1. A method for the manufacture of a toy building element made of a polymeric material using an additive manufacturing technique in which the element is built in an additive fashion, characterized in that the additive manufacturing technique by which the element is built is either photopolymerization additive manufacturing or thermoplastic additive manufacturing, selected from powder-based additive manufacturing or granulate-based additive manufacturing, with the proviso that the toy building element is not built using an additive manufacturing technique involving filament extrusion-based additive manufacturing, and wherein the polymeric material is selected from acrylate-based photopolymers when photopolymerization additive manufacturing is used and the polymeric material is selected from polyamide when powder-based additive manufacturing is used, and the polymeric material is selected from polylactic acid when granulate-based additive manufacturing is used.
2. The method according to claim 1, wherein the additively manufactured toy building element has a surface roughness defined by having an arithmetical mean height of the profile (Ra) below 100 µm and a root mean square height of the profile (Rq) below 100 µm when measured according to ISO 4287:1997.
3. An additively manufactured toy building element manufactured by the method according to any one of claims 1 or 2.
4. The toy building element according to claim 3, wherein the element is made of a polymeric material comprising a photopolymer or a thermoplastic polymer.
5. The toy building element according to claim 4, wherein the photopolymer or the thermoplastic polymer is a bio-based polymer, a hybrid bio-based polymer, a petroleum-based polymer or a mixture of bio-based polymers and/or hybrid bio-based polymers and/or petroleum-based polymers.
6. The toy building element according to any one of claims 4 or 5, wherein the photopolymer is acrylate-based photopolymers.
7. The toy building element according to any one of claims 4 or 5, wherein the thermoplastic polymer is selected from the group consisting of polyamide (PA), and polylactic acid (PLA).
8. The toy building element according to any one of claims 3 to 7, wherein the element is made of a polymeric material that further comprises fillers and/or fibres.