Sliding Frame Locking Mechanism With External Actuator Access

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Solution Overview

Problem

Existing sliding frames in structures like terrace coverings face challenges in achieving quick and robust installation, accurate locking, and maintaining a neat finish while being aesthetically appealing, as current technologies do not adequately meet these requirements.

Innovation Solution

A compact and robust locking system for sliding frames, featuring a locking means that is displaceable between releasing and locking positions, with an actuator accessible from the outside, and a strip-like connecting means for easy operation, ensuring a modern and finished appearance.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Shape

If the locking system is mounted compactly inside the profile, then the aesthetic appearance is improved, but the accessibility for operation becomes worse

Engineering Contradiction:
Improveaesthetic appearanceVSAvoidaccessibility
Core Design Contradiction:
ShapeVSEase of operation

Solution Approach 1:

An actuator serves as an intermediary element that extends through the profile, allowing external operation of the locking means without compromising the compact internal mounting. The actuator mediates between the external user and the internal locking mechanism, enabling aesthetic preservation while maintaining operational accessibility.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Strength

If the locking means is enclosed by the profile, then the robustness is improved, but the ease of repair becomes worse

Engineering Contradiction:
ImproverobustnessVSAvoidaccessibility for repair
Core Design Contradiction:
StrengthVSEase of repair

Solution Approach 1:

The locking system is segmented into distinct components: the base mounted inside the profile, the locking means coupled to the base, and the actuator extending through the profile. This segmentation allows the locking means to be enclosed for robustness while the actuator remains accessible for operation and potential repair access.

Inventive Principle:
Principle #1Segmentation

3Productivity

If the locking system is installed quickly, then the productivity is improved, but the locking precision may become worse

Engineering Contradiction:
Improveinstallation speedVSAvoidlocking accuracy
Core Design Contradiction:
ProductivityVSManufacturing precision

Solution Approach 1:

The locking means is designed to self-align and engage with the profile through its displacement mechanism. When the actuator is operated, the locking means automatically moves into the correct locking position, ensuring accurate engagement without requiring precise manual alignment, thus maintaining both quick installation and locking precision.

Inventive Principle:
Principle #25Self-service

Data Source

PatentEP4234874B1Locking system for sliding frame
Publication Date: 2026.01.21 ALUVISION
  • EP4234874B1 patent drawingFigure 1
  • EP4234874B1 patent drawingFigure 2
  • EP4234874B1 patent drawingFigure 3

AI summary

A locking system configured to be mounted in a profile of a sliding frame on a structure, for instance a terrace covering, and to lock the sliding frame relative to the structure, the locking system comprising a locking means which is coupled displaceably to a base configured to be mounted in the profile, wherein the locking means is displaceable between a releasing position and a locking position wherein the locking means protrudes through the profile; a lock which is configured to be fixed to the structure and which comprises at least one locking provision configured to receive the locking means when the locking means is in the locking position.