Window Sash Locking via Cable Pull Actuation

Resolve Bottlenecks,
Find Innovative SolutionsGenerate Solutions

Solution Overview

Problem

Existing window and door systems require multiple locks for tightness and security, leading to increased costs and complexity, with existing designs posing risks of injury and obstructing views due to protruding elements and complex mechanisms.

Innovation Solution

A window system featuring a passive, fixed pin locking element integrated into the glass pane's insulating web, with a cable pull force transmission system and electromechanical actuator for simplified operation, allowing for secure and cost-effective locking with minimal space usage and easy cleaning.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If multiple locks are equipped on each locking point to meet tightness and security requirements, then security and tightness are improved, but device complexity and cost increase

Engineering Contradiction:

Improvesecurity and tightnessVSAvoidnumber of locks and motors

Core Design Contradiction:

ReliabilityVSDevice complexity

Solution Approach 1:

Multiple locking points are connected through a common cable pull mechanism, allowing a single electromechanical actuator to control all locking elements simultaneously. This merges the function of multiple independent locks into one integrated system, reducing the number of motors while maintaining security and tightness across all locking points.

Inventive Principle:

Principle #5Merging (Combining)

Solution Approach 2:

The cable pull mechanism serves as a universal force transmission element that can actuate multiple different locking elements along the window sash. This multi-functional approach allows one actuator system to perform the locking function at multiple locations, replacing the need for separate motorized locks at each point.

Inventive Principle:

Principle #6Universality (Multi-functionality)

2Reliability

If complex locking mechanisms with multiple components are used, then security is improved, but ease of manufacture and cost are worsened

Engineering Contradiction:

ImprovesecurityVSAvoidmanufacturing cost and complexity

Core Design Contradiction:

ReliabilityVSEase of manufacture

Solution Approach 1:

The locking elements use simple, inexpensive components such as cam-actuated latches and cable pull mechanisms rather than complex motorized assemblies at each locking point. The passive mechanical locking elements can be manufactured cost-effectively and replaced if needed, while the expensive electromechanical actuator is used only once to control all locks.

Inventive Principle:

Principle #27Cheap short-living objects (Disposable)

3Reliability

If protruding locking elements are used to ensure secure engagement, then locking reliability is improved, but safety and appearance are worsened due to injury risk and obstructed views

Engineering Contradiction:

Improvelocking engagementVSAvoidinjury risk from protruding elements

Core Design Contradiction:

ReliabilityVSObject-affected harmful factors

Solution Approach 1:

The locking elements are recessed into the frame and sash structure, with cable pulls routed through channels and grooves within the frame profile. The mechanical components are nested within the existing window structure rather than protruding outward, eliminating injury risks while maintaining secure locking engagement through internal cam and latch mechanisms.

Inventive Principle:

Principle #7Nested doll (Nesting)

4Reliability

If traditional locking mechanisms are used, then security is achieved, but ease of operation is worsened due to manual operation requirements

Engineering Contradiction:

Improvelocking securityVSAvoidoperation convenience

Core Design Contradiction:

ReliabilityVSEase of operation

Solution Approach 1:

The manual mechanical operation of multiple locking elements is replaced by an electromechanical actuator that uses a cable pull system to automatically engage all locks simultaneously. The actuator converts electrical energy to mechanical motion, substituting the need for manual handling of multiple separate locking mechanisms with a single automated device.

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

Data Source

PatentEP3822437B1Window or door system

Publication Date: 2024.02.21 SIEGENIA AUBI KG

Figure 1
Figure 2~3
Figure 4

AI summary

The invention relates to a window or door system for a building, comprising a frame (2) and a sash (3) pivotally mounted thereon, wherein the sash (3) can be secured to the frame (2) by means of a locking system, wherein each locking system consists of a locking element (18) and a locking element (8), the locking element (18) comprising a fixed pin which, during a closing movement of the sash (3), is moved by the locking element (8) from a release position to a locked position, wherein the locking element (8) has at least one locking device and one release device. To provide a simplified and easy-to-use window system that is cost-effective to manufacture and ensures secure locking, each locking system is connected to every other locking system via a circumferential force transmission element (15) which actuates the release device.