Ceramic Watch Component With Nested Inserts for Wear-Resistant Decoration

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Solution Overview

Problem

Decorating hard materials like ceramics in watchmaking components is challenging due to limited surface decoration methods and the inability to achieve multi-colored or multi-aspect designs with sufficient wear resistance.

Innovation Solution

A method involving the creation of cavities in hard materials, such as ceramics, where multiple inserts of different materials and colors are nested and filled with polymers like epoxy lacquer or acrylic, allowing for complex, multi-colored designs with varying depths and appearances.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of manufacture

If surface deposition methods (pad printing, screen printing, digital printing) are used to decorate ceramic components, then decoration can be applied to the surface, but the wear resistance requirements of the watchmaking industry are not met

Engineering Contradiction:
Improvedecoration applicationVSAvoidwear resistance
Core Design Contradiction:
Ease of manufactureVSReliability

Solution Approach 1:

The patent creates cavities within the ceramic component and nests decorative inserts (metal or polymer) inside these cavities. The inserts are positioned at different depths and orientations within the ceramic matrix, allowing multiple decorative layers to be nested like dolls. This nested structure protects the decorative surfaces from wear while maintaining visual complexity.

Inventive Principle:
Principle #7Nested doll (Nesting)

Solution Approach 2:

The patent combines ceramic material with metal inserts and/or polymer inserts to create a composite structure. Each material contributes its superior properties: ceramic provides hardness and wear resistance, metal inserts provide reflective surfaces and structural strength, while polymer inserts provide color and flexibility. The composite structure achieves wear resistance while enabling complex multi-colored decorations.

Inventive Principle:
Principle #40Composite materials

2Manufacturing precision

If a cavity is filled with a single type of lacquer to create decoration, then clean filling with acceptable resolution is achieved, but only one type of decoration (single color) can be obtained

Engineering Contradiction:
Improvefilling resolutionVSAvoiddecoration variety
Core Design Contradiction:
Manufacturing precisionVSAdaptability or versatility

Solution Approach 1:

The patent divides the decorative space into multiple cavities or zones within the ceramic component. Each cavity can be filled with different materials (metal inserts, polymer inserts, or lacquers) to create distinct decorative elements. This segmentation allows multiple colors and textures to coexist while maintaining clean boundaries and high resolution in each zone.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The patent extends decoration from a single surface layer into the third dimension by creating cavities at different depths within the ceramic. Decorative inserts are positioned at varying depths, creating a multi-layered structure where some elements protrude while others are recessed. This dimensional approach enables complex multi-colored designs while maintaining precise control over each decorative element.

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

3Adaptability or versatility

If multiple decorative zones with different colors and textures are created in hard materials, then intricate multi-colored designs are achieved, but the manufacturing complexity increases

Engineering Contradiction:
Improvedecoration complexityVSAvoidmanufacturing process
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The patent performs preliminary actions by pre-fabricating decorative inserts (metal or polymer) separately before inserting them into the ceramic component. These inserts can be pre-shaped, pre-colored, and pre-finished to their final appearance. The ceramic component also has cavities pre-formed to receive these inserts. This preliminary preparation simplifies the final assembly process while enabling complex multi-colored designs.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The patent uses ceramic material as an intermediary matrix that holds and protects the decorative inserts. The ceramic provides a stable, wear-resistant framework that accommodates multiple inserts at different positions and orientations. This intermediary structure simplifies manufacturing by allowing inserts to be independently prepared and then integrated into the final component through controlled insertion processes.

Inventive Principle:
Principle #24Intermediary (Mediator)

Data Source

PatentEP3699695B1Multi-decor and/or multi-colour clock piece component with ceramic structure
Publication Date: 2022.07.06 COMADUR
  • EP3699695B1 patent drawingFigure 1~10
  • EP3699695B1 patent drawingFigure 7~16
  • EP3699695B1 patent drawingFigure 11~12

AI summary

Watchmaking component (100), comprising a structure (1) in a first material which is a hard material or a ceramic, which structure (1) comprises, in its thickness, at least one primary insert (2) made of a second material having a different appearance from said first material, where such primary insert (2) comprises, in its thickness, at least one secondary insert (3) made of a third material having a different appearance from the first material and/or the second material, and method of making such a heterogeneous component, according to which a primary cavity (10) is made in a structure (1), which is filled with a second material having a different appearance from the first material to make a primary insert (2), and a secondary cavity (20) is made in the thickness of this primary insert (2), which is filled with a third material having a different appearance from the first material and/or the second material to make a secondary insert (3).