Window Sash Profile Attachment for Block Bridges

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Solution Overview

Problem

Existing window casement profiles lack efficient and detachable attachment mechanisms for block bridges and support blocks, which complicates the assembly and positioning of glazing, leading to potential mobility issues and direct contact between the glazing and window frame.

Innovation Solution

The window casement profile incorporates multiple non-positive and positive attachment means, including a functional groove, fastening web, radius, and spring elements, along with stop lugs and holding webs, to securely attach block bridges of different geometric shapes, ensuring optimal glazing support and preventing direct contact with the window frame.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If block bridges are attached using form-fitting connection, then the attachment is secure, but the components must be pushed into the basic profile before assembly which complicates the installation process

Engineering Contradiction:
Improveattachment securityVSAvoidinstallation process
Core Design Contradiction:
ReliabilityVSEase of operation

Solution Approach 1:

The attachment system is divided into separate functional elements: the basic profile contains attachment means (protrusions, recesses), while the block bridges contain corresponding receiving means. This segmentation allows independent preparation of components and simplifies the assembly process by enabling straightforward coupling without complex pre-positioning requirements.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The attachment means and receiving means are pre-configured during manufacturing of the basic profile and block bridges respectively. This preliminary action ensures that during installation, the components can be quickly connected without requiring complex alignment or forcing operations, thus improving ease of operation while maintaining secure attachment.

Inventive Principle:
Principle #10Preliminary action

2Reliability

If support blocks are positioned to securely support glazing weight, then the window sash remains stable, but the complexity of positioning and attaching block bridges increases

Engineering Contradiction:
Improvewindow sash stabilityVSAvoidblock bridge attachment system
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The block bridges serve multiple functions: they provide structural support for the glazing weight, act as positioning elements for correct block placement, and serve as attachment components connecting to the basic profile through integrated receiving means. This multi-functionality reduces the need for separate components, thereby reducing overall system complexity while ensuring stability.

Inventive Principle:
Principle #6Universality (Multi-functionality)

Solution Approach 2:

The block bridges act as intermediary elements between the basic profile and the glazing. They transfer and distribute the glazing weight to the window sash through the basic profile, while also providing positioning functions. This intermediary role simplifies the overall structure by consolidating support and positioning functions into a single component rather than requiring separate mechanisms.

Inventive Principle:
Principle #24Intermediary (Mediator)

3Adaptability or versatility

If multiple attachment means are provided for different geometric shapes of block bridges, then the adaptability increases, but the profile structure becomes more complex

Engineering Contradiction:
Improvecompatibility with different block bridge shapesVSAvoidprofile structure
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The basic profile is designed with universal attachment means that can accommodate different geometric shapes of block bridges. The combination of protrusions and recesses creates a versatile interface that can adapt to various block bridge configurations without requiring fundamentally different structural elements in the basic profile, thus maintaining relative structural simplicity while achieving high adaptability.

Inventive Principle:
Principle #6Universality (Multi-functionality)

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

This design allows for easy and time-saving glazing installation, maintains the window's mobility, and ensures secure support of the glazing weight, preventing jamming and enhancing thermal insulation by minimizing the gap between the glazing and window frame.

Implementation Method 1

An essential functional element of the window casement profile according to the invention is a spring element for attaching block bridges of different geometric shapes

Methodology Applied
Scientific EffectElasticity: Elasticity

Data Source

PatentEP2604782B1Window leaf profile for the mounting of glazing bridges or the like
Publication Date: 2017.09.13 SCHUECO INTERNATIONAL KG
  • EP2604782B1 patent drawingFigure 1
  • EP2604782B1 patent drawingFigure 2a~2c
  • EP2604782B1 patent drawingFigure 3a~3c

AI summary

The window sash structure (4) of different height levels, has a fold region (11) for receiving a block bridge (20), a stretcher block (21) and a glazing (2). Three different elements are provided for frictional and positive mounting of block bridges of various geometric dimensions. The elements are functional groove, fastening bar (12), circular portion or spring element (18).