Sill Assembly With Wear-Resistant Cover Element

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Solution Overview

Problem

Existing sill assemblies lack optimal material distribution for wear and impact resistance, with components often exposed to environmental damage and sagging issues due to uniform material properties.

Innovation Solution

The sill assembly features a cover element and sill part made of different materials, where the cover element has higher wear and impact resistance, and the sill part is stiffer, allowing for enhanced protection and stability, with connecting means for secure assembly and fluid management.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If the cover element and sill part are made of the same material, then the manufacturing process is simplified and costs are reduced, but the wear resistance and impact resistance are not optimized for their respective functions

Engineering Contradiction:
Improvewear resistance and impact resistanceVSAvoidmanufacturing complexity
Core Design Contradiction:
ReliabilityVSEase of manufacture

Solution Approach 1:

The patent applies local quality by assigning different material properties to different components based on their specific functional requirements. The cover element uses material with higher wear and impact resistance since it is exposed to the environment, while the sill part uses stiffer material for structural support. This localized optimization of material properties resolves the contradiction by achieving superior performance where needed while maintaining manufacturing feasibility through standardized component production.

Inventive Principle:
Principle #3Local quality

Solution Approach 2:

The patent employs composite materials by combining different material types in the sill assembly. The cover element is made from wear-resistant and impact-resistant materials (such as engineered woods or composites), while the sill part is made from stiffer materials (such as treated woods or structural composites). This composite approach allows each component to have optimized material properties for its specific function, thereby improving overall reliability without excessive manufacturing complexity.

Inventive Principle:
Principle #40Composite materials

2Stability of the object's composition

If the cover element is made of stiffer material, then it can support itself better and resist sagging, but its wear resistance and impact resistance may be compromised

Engineering Contradiction:
Improveresistance to saggingVSAvoidwear resistance and impact resistance
Core Design Contradiction:
Stability of the object's compositionVSReliability

Solution Approach 1:

The patent resolves this contradiction through local quality by assigning stiffer material specifically to the sill part where structural support is needed, while assigning wear-resistant and impact-resistant material to the cover element where environmental exposure occurs. This localized material assignment allows each component to have the exact properties needed for its function, preventing sagging in the sill part while maintaining durability in the cover element.

Inventive Principle:
Principle #3Local quality

Solution Approach 2:

The patent uses composite materials to achieve different mechanical properties in different components. The sill part is made from stiffer composite materials or treated woods that resist sagging, while the cover element is made from wear-resistant and impact-resistant composite materials or engineered woods. This composite approach allows simultaneous optimization of both sagging resistance and environmental durability without compromise.

Inventive Principle:
Principle #40Composite materials

3Object-affected harmful factors

If the cover element extends till the plinth block application zone, then the coverage is maximized and protection is improved, but the cover element length increases causing greater expansion

Engineering Contradiction:
Improveprotection from environmentVSAvoidcover element length and expansion
Core Design Contradiction:
Object-affected harmful factorsVSLength of moving object

Solution Approach 1:

The patent applies local quality by optimizing the cover element length to extend only as far as necessary for effective protection, rather than maximizing coverage. The cover element extends to the plinth block application zone to provide adequate protection against environmental factors, but the design accepts that this creates expansion issues. The local optimization of protection coverage is balanced with the practical constraint of material expansion through design adjustments in the connection system.

Inventive Principle:
Principle #3Local quality

4Reliability

If the sill part is made of more durable material, then it can better withstand environmental exposure, but the overall structure may become less flexible and more difficult to install

Engineering Contradiction:
Improvedurability against environmentVSAvoidinstallation flexibility
Core Design Contradiction:
ReliabilityVSEase of operation

Solution Approach 1:

The patent resolves this contradiction through local quality by making only the cover element (the portion exposed to the environment) from durable, environmentally resistant material, while the sill part is made from stiffer material optimized for structural support. This localized durability assignment provides environmental protection where needed without making the entire structure overly rigid or difficult to install. The sill part maintains sufficient flexibility for installation while the cover element provides the necessary environmental durability.

Inventive Principle:
Principle #3Local quality

Data Source

PatentEP4124716A1Sill assembly
Publication Date: 2023.02.01 INNODEEN BV
  • EP4124716A1 patent drawingFigure 1a
  • EP4124716A1 patent drawingFigure 1b
  • EP4124716A1 patent drawingFigure 2

AI summary

The invention relates to a sill assembly, comprising a sill part and a cover element which is connectable thereto to form an assembled state of the sill assembly and which, in the assembled state, covers at least a top side of the sill part, wherein the cover element and the sill part are made of different materials, wherein the cover element has a higher wear resistance than the sill part and/or the sill part is stiffer than the cover element. The invention further relates to a building comprising said sill assembly or to the use of said sill assembly, wherein the sill part is arranged, for example, below ground level.