Transverse Gear Locking Mechanism for Universal Window Access

Solution Overview

Problem

Existing locking devices for windows and doors require multiple configurations for different types of facade windows, leading to increased production costs and assembly time due to the need for specific devices for each type, with a risk of incorrect installation.

Innovation Solution

A locking device with two gears that convert rotary movements into linear movements, where the axes are transverse to each other, allowing a single device to function with two access options, utilizing a compact design with integrated toothed racks and a housing for ease of assembly and installation.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If different locking devices are manufactured for different types of facade windows, then the locking device is specifically adapted to each window type, but production costs increase and assembly time is lengthened

Engineering Contradiction:

Improveadaptability to different window typesVSAvoidproduction efficiency

Core Design Contradiction:

Adaptability or versatilityVSProductivity

Solution Approach 1:

The locking device is designed with two transverse access options (first access via first gear, second access via second gear) allowing a single universal device to function with both types of facade windows. The two gears with transverse axes enable the same locking device to accommodate different lever attachment positions, eliminating the need for multiple specialized locking devices and thereby improving production efficiency while maintaining adaptability.

Inventive Principle:

Principle #6Universality (Multi-functionality)

2Adaptability or versatility

If different locking devices are manufactured for different types of facade windows, then the locking device is specifically adapted to each window type, but production costs increase

Engineering Contradiction:

Improveadaptability to different window typesVSAvoidmanufacturing cost

Core Design Contradiction:

Adaptability or versatilityVSEase of manufacture

Solution Approach 1:

The locking device is designed with two transverse access options (first access via first gear, second access via second gear) allowing a single universal device to function with both types of facade windows. The two gears with transverse axes enable the same locking device to accommodate different lever attachment positions, eliminating the need for multiple specialized locking devices and thereby improving production efficiency while maintaining adaptability.

Inventive Principle:

Principle #6Universality (Multi-functionality)

3Adaptability or versatility

If different locking devices are manufactured for different types of facade windows, then the locking device is specifically adapted to each window type, but assembly time increases due to risk of incorrect installation

Engineering Contradiction:

Improveadaptability to different window typesVSAvoidassembly time

Core Design Contradiction:

Adaptability or versatilityVSLoss of time

Solution Approach 1:

The locking device is designed with two transverse access options (first access via first gear, second access via second gear) allowing a single universal device to function with both types of facade windows. The two gears with transverse axes enable the same locking device to accommodate different lever attachment positions, eliminating the need for multiple specialized locking devices and thereby improving production efficiency while maintaining 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 solution enables a single locking device to serve both types of windows, reducing production costs and assembly time while ensuring correct installation, with enhanced strength and simplified assembly through a compact and versatile design.

Implementation Method 1

a first gear, which converts a rotary movement about a first axis into a linear movement running transversely thereto and thus moves a slide

Methodology Applied

Scientific EffectGear mechanism: Gear

Implementation Method 2

a second gear, which converts a rotary movement about a second axis into a linear movement running transversely thereto and thus moves the slide in the same direction of movement indicated above

Methodology Applied

Scientific EffectGear mechanism: Gear

Implementation Method 3

the first transmission consists of a first gear wheel and a first toothed rack that meshes with it

Methodology Applied

Scientific EffectRack and pinion mechanism: Rack and Pinion

Data Source

PatentEP1881141B1Locking device for window or door leaves

Publication Date: 2008.09.10 GLUSKE BKV

Figure 1~2

AI summary

The locking mechanism (10), for a door or window panel, has a drive (12) with a cogwheel (22) meshing with a rack (24) to convert a rotary movement around its axis (14) into a lateral linear movement to push a slide (16). A second drive (18) has a cogwheel (26) meshing with a rack (28), to convert a rotary movement around its axis (20) into a lateral linear movement to push the slide in the same direction. The two axes are across each other.