Corner Deflector Locking Strip Fitting
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Solution Overview
Problem
Existing window and door locking strip fittings often lack reliability and ease of assembly, with complex constructions that do not guarantee safe operation and require cumbersome handling.
Innovation Solution
A locking strip fitting designed as a corner guide with a rotatable holding part and pivotably articulated support elements, allowing for reproducible movement of locking rails and enabling safe operation with a simple, inexpensive design that facilitates assembly and disassembly through snap-in connections and adjustable length settings.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If locking strips are connected by shackles in corner areas, then the locking function is provided, but safe functioning is not always guaranteed and the structure becomes complex
Solution Approach 1:
The locking strip fitting is divided into separate functional components: a stationary base part, a rotatable holding part, and pivotable support elements. This segmentation allows each component to perform its specific function reliably while maintaining overall structural simplicity.
Solution Approach 2:
The holding part acts as an intermediary element that connects the two locking strips running at an angle. It transfers displacement movements between the locking strips through defined bearing points, ensuring reliable and reproducible operation without requiring complex direct connections.
2Reliability
If complex locking mechanisms are used to ensure reliable operation, then safety is improved, but assembly and disassembly become cumbersome
Solution Approach 1:
The holding part is designed to be rotatable on the base part through a rotary bearing, and the support elements are pivotable through pivot bearings. These dynamic connections enable simple assembly and disassembly while maintaining reliable locking function during operation.
Solution Approach 2:
The connection between support elements and locking strips allows for length adjustment to compensate for manufacturing tolerances. This adjustability simplifies assembly by accommodating variations without requiring complex adjustment mechanisms.
3Manufacturing precision
If locking strips are rigidly connected, then movement control is precise, but tolerance compensation is difficult
Solution Approach 1:
The pivotable support elements provide defined movement paths through pivot bearings, ensuring precise and reproducible locking strip movement while allowing for easy adjustment of the connection length to compensate for manufacturing tolerances.
Solution Approach 2:
The connection between support elements and locking strips is designed with adjustable length capability, enabling tolerance compensation while maintaining precise movement control through the defined pivot points and bearing connections.
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
Ensures safe, error-free operation by allowing one locking rail to control the movement of another, with adjustable connections for tolerance compensation, enhancing reliability and ease of assembly/disassembly.
Implementation Method 1
the holding part can be mounted in a rotatable manner on a base part to be arranged in a stationary manner by means of a rotary bearing
Implementation Method 2
two support elements are pivotably articulated on the holding part by means of pivot bearings
Data Source
Figure 1
Figure 2
Figure 3
AI summary
The locking strip fitting (2) comprises corner deflection unit that is formed for a corner area of window and door. The holding units (21,25) are operatively connected to each other in an area defined by the corner angle extending locking strip (51,52) by a pivot bearing (23) for rotation. The two support elements (30,31) are fixed on base (13) by pivot mountings (28,29) which are articulated on the holding units. Each support element is fixed to locking strips by connection unit (64).