Stacked Corner Connector Discs for Automated Frame Assembly

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Solution Overview

Problem

Existing frame assembly technologies require numerous corner connector variants to accommodate varying frame profile heights, complicating automated assembly and limiting the use of identical parts.

Innovation Solution

A modular corner connector system composed of stacked corner connector discs, each with a uniform or slightly varying height, connected through positive locking and/or adhesive mechanisms, allowing flexible adaptation to different frame profile dimensions and enabling automated assembly.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Manufacturing precision

If different corner connectors are used for each corner connector chamber height, then the frame profiles can be accurately assembled, but the number of different corner connector variants increases severely

Engineering Contradiction:
Improveframe profile assembly accuracyVSAvoidnumber of corner connector variants
Core Design Contradiction:
Manufacturing precisionVSDevice complexity

Solution Approach 1:

The corner connector is divided into multiple individual corner connector discs that can be stacked in different quantities. Each disc has a standardized height, and by varying the number of discs stacked (1, 2, 3, or more), corner connectors of different total heights are created. This segmentation allows a single disc design to replace numerous variant designs.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

A single corner connector disc design serves multiple functions by being stackable in different quantities. The same disc type can create corner connectors of various heights to match different corner connector chamber heights in frame profiles, eliminating the need for multiple specialized disc designs.

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

2Adaptability or versatility

If a large number of corner connector variants are used, then different frame profile heights can be accommodated, but automated frame assembly is complicated

Engineering Contradiction:
Improveadaptation to different frame profile dimensionsVSAvoidautomated frame assembly
Core Design Contradiction:
Adaptability or versatilityVSExtent of automation

Solution Approach 1:

The corner connector is segmented into standardized discs that can be automatically stacked in different quantities. Automated assembly systems can easily control the number of discs stacked to match the required corner connector chamber height, simplifying automation compared to handling numerous pre-configured variant types.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

Instead of changing the design parameters of the corner connector disc itself, adaptability is achieved by changing the quantity parameter - the number of identical discs stacked. This single parameter change (stack height) provides versatility for different frame profile dimensions while maintaining identical disc geometry for automated manufacturing.

Inventive Principle:
Principle #35Parameter changes

3Adaptability or versatility

If identical parts are limited in use, then customization for different chambers is possible, but the use of identical parts is severely limited

Engineering Contradiction:
Improvecustomization to chamber dimensionsVSAvoiduse of identical parts
Core Design Contradiction:
Adaptability or versatilityVSQuantity of substance

Solution Approach 1:

The corner connector is segmented into identical, reusable disc units. These identical discs can be stacked in different quantities (1, 2, 3, or more) to create customized corner connectors for different chamber heights, maximizing the use of identical parts while achieving customization.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

A single identical corner connector disc design performs multiple functions by being used in different stack configurations. The same disc type can be used alone or stacked with others to match various chamber heights, greatly increasing the quantity of identical parts that can be utilized across different applications.

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

Facilitates easy and automated assembly of frame corners by providing a versatile connector system that adapts to various profile dimensions, reducing the need for multiple connector types and simplifying the assembly process.

Implementation Method 1

corner connector discs stacked one above the other in a stacking direction in the area of their main outer surfaces and connected to each other, in particular by positive locking and/or adhesive connection

Methodology Applied
Scientific EffectPositive locking: Mechanical Fastener

Implementation Method 2

corner connector discs stacked one above the other in a stacking direction in the area of their main outer surfaces and connected to each other, in particular by positive locking and/or adhesive connection

Methodology Applied
Scientific EffectAdhesive connection: Adhesive

Data Source

PatentEP4696859A1Corner profile frame with a multi-part corner connector, corner connector system and method for assembling the corner profile frame
Publication Date: 2026.02.18 SCHUECO INTERNATIONAL KG
  • EP4696859A1 patent drawingFigure 1a~1d
  • EP4696859A1 patent drawingFigure 1c
  • EP4696859A1 patent drawingFigure 2a

AI summary

A corner connector (1) for connecting mitered frame profiles (11, 12) for doors, windows or facade elements, wherein the corner connector (1) has an angular basic geometry with a first leg (2a) and a second leg (2b), wherein the frame profiles (11, 12) are made from a profile (10), wherein the profile (10) has at least one corner connector hollow chamber (8, 9), each having a height dimension B, into which the legs (2a, 2b) of the corner connector (1) are inserted when assembling the frame profiles (11, 12) to form a frame or sash, wherein the corner connector (1) is composed of several, for example three or more, corner connector discs (2), such that a stack (3) of corner connector discs (2) is formed.