Sliding Lock with Integrated Bolt Block for Sash Security

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Solution Overview

Problem

Existing locking mechanisms for sliding doors face challenges in providing a compact, easy-to-install, and secure solution that effectively prevents movements in the sliding direction, lifting, and passage directions simultaneously, while existing counter-rotating bar combinations are complex and space-intensive.

Innovation Solution

A lock system featuring a combined actuating element and bolt lock within a sliding locking slide, with mirror-symmetric hook-shaped lock bolts that pivot and engage in a recess, allowing for a compact design with robust blocking capabilities and improved mountability, utilizing an inclined guide slot and holding magnets for enhanced security.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If opposing bolt combinations are used to prevent lifting and sliding movements, then security is improved, but device complexity and space requirements increase

Engineering Contradiction:
ImprovesecurityVSAvoidcomplexity of installation
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The patent combines multiple locking functions into a single integrated locking slide that houses both the actuating element and the bolt lock. This merging of components into one unified structure reduces the overall number of parts, simplifies installation, and decreases space requirements while maintaining the security benefits of opposing bolts

Inventive Principle:
Principle #5Merging (Combining)

2Reliability

If opposing bolt combinations are used to prevent lifting and sliding movements, then security is improved, but device complexity and space requirements increase

Engineering Contradiction:
ImprovesecurityVSAvoidspace requirements
Core Design Contradiction:
ReliabilityVSVolume of stationary object

Solution Approach 1:

The actuating element and bolt lock are nested within the locking slide structure. The actuating element is positioned inside the locking slide, and the bolt lock features are integrated into the same component, creating a compact nested arrangement that reduces the overall volume required for the locking mechanism

Inventive Principle:
Principle #7Nested doll (Nesting)

3Ease of operation

If simple hook bolts are used, then ease of installation is improved, but reliability deteriorates due to easy lifting

Engineering Contradiction:
Improveease of installationVSAvoidsecurity against lifting
Core Design Contradiction:
Ease of operationVSReliability

Solution Approach 1:

The patent merges the actuating mechanism and the bolt lock into a single integrated locking slide component. This combination maintains the simplicity of installation while adding the security feature of the bolt lock that prevents lifting, which simple hook bolts alone cannot provide

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

The solution enables a compact, easy-to-install, and secure locking mechanism that effectively blocks pivoting and sliding movements, achieving high security classification with reduced complexity and space requirements.

Implementation Method 1

the lock has at least one holding magnet which, in the enclosed open position, retains the locking slide

Methodology Applied
Scientific EffectMagnetic attraction: Magnetism

Implementation Method 2

The actuating element has an inclined guide slot which interacts with a pin on each lock bolt

Methodology Applied
Scientific EffectMechanical motion transmission: Cam

Data Source

PatentEP3406828B1Lock for a wing
Publication Date: 2021.03.03 GEZE GMBH
  • EP3406828B1 patent drawingFigure 1~2
  • EP3406828B1 patent drawingFigure 3

AI summary

The invention relates to a lock (1) for a sash, in particular a sliding sash, with a lock case (3) which is closed on one side by a faceplate (5), and a locking arrangement (10) arranged in the lock case (3), which has an opposing bolt combination with a hook-shaped first lock bolt (12A) and a hook-shaped second lock bolt (12B), which are pivotably arranged relative to each other and can be moved through an opening (5.1) in the faceplate (5) between an enclosed open position and a locked position excluded from the lock case (3), in which the lock bolts (12A, 12B) each engage in a recess (7).1) engage in a strike plate (7), wherein an actuating element (20A) upon corresponding actuation moves the opposing lock bolts (12A, 12B) from the enclosed open position to the excluded locking position or from the excluded locking position to the enclosed open position, and wherein a bolt lock (20B) blocks the pivoting movement of the lock bolts (12A, 12B) in the excluded locking position and releases it in the enclosed open position, and a system with at least one sliding leaf which has such a lock.According to the invention, the actuating element (20A) and the bolt lock (20B) are combined in a slidingly mounted locking slide (20), which is displaceable between a release position in the enclosed open position and a locking position in the excluded locking position, wherein the locking slide (20) blocks the lock bolts (12A, 12B) in the locking position.