Modular Window Locking Mechanism for Flexible Sash Operation

Resolve Bottlenecks,
Find Innovative Solutions
Generate Solutions

Solution Overview

Problem

Existing window and door systems with central locks are complex, expensive, and limited in operating options, particularly when requiring both rotational and tilting movements for ventilation, and often compromise on visual design due to the presence of a central locking mechanism.

Innovation Solution

A window or door system equipped with modular individual closures, each with independent actuating sections that can be coupled for synchronous operation via a common operating element, allowing for various movement paths such as rotation, tilting, or sliding without the need for a complex tilting mechanism, and featuring magnetic coupling for intuitive operation.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If a central locking system is used to secure multiple fixing points simultaneously, then the locking mechanism is simplified and can be operated with a single actuation, but the device complexity increases due to the need for a central actuation section and connecting rod arrangement

Engineering Contradiction:
Improvelocking operationVSAvoidcentral lock mechanism
Core Design Contradiction:
Ease of operationVSDevice complexity

Solution Approach 1:

The locking system is divided into multiple independent modular individual closures, each responsible for a specific fixing point. Each closure has its own actuating section that can be operated independently or coupled with others, eliminating the need for a complex central actuation mechanism while maintaining the ability to secure multiple points simultaneously.

Inventive Principle:
Principle #1Segmentation

2Productivity

If a central locking system with connecting rod arrangement is implemented, then all locking pins can be engaged or disengaged simultaneously, but the manufacturing cost increases

Engineering Contradiction:
Improvelocking speedVSAvoidmanufacturing cost
Core Design Contradiction:
ProductivityVSEase of manufacture

Solution Approach 1:

Instead of manufacturing one complex central locking system, the patent uses multiple simple modular individual closures that can be manufactured separately and assembled independently. This segmentation reduces manufacturing complexity and cost while maintaining the capability to engage all locking points simultaneously through coupling of the modular units.

Inventive Principle:
Principle #1Segmentation

3Adaptability or versatility

If a tilting mechanism is added to enable ventilation, then the operating versatility is improved, but the device complexity and cost increase significantly

Engineering Contradiction:
Improvemovement optionsVSAvoidtilting mechanism
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The system provides dynamic versatility by allowing different combinations of modular individual closures to be actuated simultaneously. By selectively coupling and actuating different modules, the sash can achieve various movement paths including rotation, tilting, and sliding without requiring a dedicated mechanical tilting mechanism, thus maintaining simplicity while enhancing adaptability.

Inventive Principle:
Principle #15Dynamics

4Adaptability or versatility

If modular individual closures with independent actuating sections are used, then the operating versatility and flexibility are improved, but the device complexity increases due to multiple independent components

Engineering Contradiction:
Improvemovement pathsVSAvoidnumber of components
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The modular individual closures can be coupled together through their actuating sections to function as a unified system. This merging allows multiple components to operate cooperatively, achieving complex movement paths and operational versatility while presenting a simplified interface to the user, effectively combining the benefits of modularity with system integration.

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

Enables flexible and intuitive operation with reduced manufacturing costs, improved design aesthetics by eliminating the need for a central handle, and enhanced security through internal locking reinforcement, while maintaining secure locking mechanisms.

Implementation Method 1

the first fixing element and the second fixing element can be magnetically coupled to one another at least one of the modular individual closures

Methodology Applied
Scientific EffectMagnetic coupling: Magnetism

Data Source

PatentEP2886757B1Window or door
Publication Date: 2019.01.09 MACO TECHNOLOGIE GMBH
  • EP2886757B1 patent drawingFigure 1
  • EP2886757B1 patent drawingFigure 2a~2c
  • EP2886757B1 patent drawingFigure 3

AI summary

A window or door comprises a frame and a sash movable relative to the frame, the sash being fixable to the frame by a locking mechanism with multiple fixing points. The locking mechanism includes several modular individual locks for selectively moving the sash along one of several different movement paths, each lock being assigned to one of the multiple fixing points. Each modular individual lock has independent actuation sections by means of which the sash can be released from its respective fixing point.