Window Screening Electrical Contact Guide System

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Solution Overview

Problem

Existing window screening arrangements are complex to mount and often malfunction due to issues with cord systems, battery recharging, and precision requirements, leading to incomplete charging and potential damage.

Innovation Solution

A screening device with electrical contact means on the side rails that establish a direct connection to the electrical outlet and guide, eliminating the need for guide cords and batteries, ensuring a steady power supply and simplifying the mounting process with slim side rails and a robust transmission system.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If guide cords and battery recharging systems are used, then the screening arrangement can operate, but the mounting becomes complicated and the system becomes complex

Engineering Contradiction:
Improvemounting simplicityVSAvoidsystem complexity
Core Design Contradiction:
Ease of operationVSDevice complexity

Solution Approach 1:

The patent removes the guide cords and battery recharging systems from the screening arrangement, replacing them with a direct electrical connection system. The electrical contacts are integrated into the side rails and bottom element, eliminating the need for separate mounting of guide cords and recharging components, thus simplifying both mounting and reducing system complexity.

Inventive Principle:
Principle #2Taking out (Extraction)

Solution Approach 2:

The patent replaces the mechanical guide cord system with an electrical connection system. Instead of using physical cords to guide and power the bottom element, the invention uses electrical contacts and guides that provide both mechanical guidance and electrical power transmission through the same structural components.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

2Adaptability or versatility

If batteries with recharging system are used, then the screening arrangement can operate autonomously, but the mounting precision requirements increase and risk of damage occurs

Engineering Contradiction:
Improveautonomous operationVSAvoidmounting precision
Core Design Contradiction:
Adaptability or versatilityVSManufacturing precision

Solution Approach 1:

The patent removes the batteries and recharging system entirely, replacing autonomous operation with continuous electrical power supply through fixed contacts. This eliminates the need for precision mounting of rechargeable components and removes the risk of incomplete charging or battery damage.

Inventive Principle:
Principle #2Taking out (Extraction)

Solution Approach 2:

The patent introduces electrical guides and contact means as intermediaries between the power outlet and the motor. These intermediaries provide continuous electrical connection during movement, eliminating the need for precision-aligned rechargeable components while maintaining autonomous operation capability.

Inventive Principle:
Principle #24Intermediary (Mediator)

3Use of energy by moving object

If plug and socket system for battery recharging is used, then batteries can be recharged, but the mounting process becomes complicated and precision is required

Engineering Contradiction:
Improvebattery rechargingVSAvoidmounting process simplicity
Core Design Contradiction:
Use of energy by moving objectVSEase of manufacture

Solution Approach 1:

The patent removes the plug and socket recharging system, replacing battery recharging with continuous electrical power supply through integrated contacts. This eliminates the need for separate recharging components and simplifies the mounting process while maintaining energy supply functionality.

Inventive Principle:
Principle #2Taking out (Extraction)

Solution Approach 2:

The patent combines the electrical power transmission and mechanical guidance functions into a single integrated system. The electrical guides and contact means serve both to guide the bottom element movement and to transmit electrical power continuously, eliminating the need for separate recharging components.

Inventive Principle:
Principle #5Merging (Combining)

4Device complexity

If electrical contact means are integrated into side rails, then the power supply is simplified and mounting is easier, but the side rails require additional components

Engineering Contradiction:
Improvepower supply complexityVSAvoidside rail manufacturing
Core Design Contradiction:
Device complexityVSEase of manufacture

Solution Approach 1:

The patent merges the electrical contact functionality with the side rail structure. The electrical guides and contact means are integrated into the side rails, combining mechanical support and electrical power transmission functions in single components, thus simplifying the overall power supply system while maintaining manufacturing feasibility.

Inventive Principle:
Principle #5Merging (Combining)

Applied Scientific Principles

This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.

Function Achieved in This Case

The solution provides a lightweight, easy-to-mount screening device with a reliable power supply, eliminating the need for complex recharging systems and ensuring durability and simplicity in operation.

Implementation Method 1

at least one electrical contact means adapted for, in a mounted position of the screening arrangement on the frame of the window, establishing an electrical connection between the electrical outlet and the at least one electrical guide

Methodology Applied
Scientific EffectElectrical conduction: Conduction (electrical)

Implementation Method 2

the at least one electrical connection device is adapted for, in the mounted position of the screening arrangement, being in electrical connection with the at least one electrical guide, such that electrical power is provided to the motor

Methodology Applied
Scientific EffectElectrical conduction: Conduction (electrical)

Data Source

PatentEP2738344B1A screening arrangement for a window
Publication Date: 2015.09.30 VKR HOLDING AS
  • EP2738344B1 patent drawingFigure 1~2
  • EP2738344B1 patent drawingFigure 3
  • EP2738344B1 patent drawingFigure 4~5

AI summary

A screening arrangement (1) for a roof window, comprising a frame (2) with at least one electrical outlet (25, 26), the screening arrangement (1) comprising two side rails (8, 9) and a bottom element (7) being movable between a non-screening position and a screening position by means of an electrical motor (710) and at least one electrical connection device (714, 715) for providing electrical power to the motor (710) arranged in said bottom element (7), and at least one electrical guide (811, 812; 911, 912) extending substatially in a longitudinal direction of at least one of the side rails (8, 9), wherein at least one of the side rails (8, 9) comprises at least one electrical contact means (813, 814) for establishing an electrical connection between the electrical outlet (25, 26) and the at least one electrical guide (811, 812; 911, 912) such that electrical power is provided to the at least one electrical guide (811, 812; 911, 912), and wherein the at least one electrical connection device (714, 715) is for being in electrical connection with the at least one electrical guide (811, 812, 911, 912) such that electrical power is provided to the motor (710).