Door Locking System Connecting Sleeve Alignment
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Solution Overview
Problem
Existing locking systems for doors and windows face instability due to non-standardized screw connections and the need for additional components, leading to eccentric positioning and reduced axial strength.
Innovation Solution
A locking system where the rosette is directly connected to the mortise lock via a connecting sleeve, allowing for exact positioning and a stable, rigid connection, eliminating the need for additional assembly aids and ensuring concentric alignment with the axis of rotation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If the rosette is screwed directly to the door leaf or window frame, then the installation is simple, but the connection lacks stability and axial strength due to non-standardized pre-drilled holes and material properties
Solution Approach 1:
The patent introduces a threaded plate as an intermediary component between the rosette and the door/window frame. The threaded plate provides standardized threading that engages with the rosette's connecting flange, while being secured to the door or window frame. This mediator resolves the contradiction by providing a stable, standardized connection interface without requiring direct screwing into non-standardized pre-drilled holes in the door or window frame materials.
2Reliability
If additional components like threaded plates or U-shaped brackets are used to improve connection stability, then the axial strength increases, but the device complexity and number of components increases
Solution Approach 1:
The patent combines the threaded plate and the rosette mounting functions into a single integrated assembly. The threaded plate is designed with an integrated mounting structure that secures it to the door or window frame, eliminating the need for separate U-shaped brackets or other additional mounting components. This merging reduces the total number of components while maintaining the enhanced connection stability provided by the threaded plate.
3Device complexity
If the rosette is mounted directly on the door or window frame, then fewer components are needed, but eccentric positioning relative to the drive element axis occurs due to non-standardized bores
Solution Approach 1:
The threaded plate serves as a positioning intermediary that provides a standardized, precisely engineered mounting interface. The threaded plate is designed with specific dimensional tolerances and positioning features that ensure the rosette is correctly aligned with the drive element axis. This intermediary component eliminates the positioning errors that would occur when mounting the rosette directly to non-standardized pre-drilled holes in the door or window frame.
4Adaptability or versatility
If retrofitting is attempted after mortise lock installation, then existing installations can be upgraded, but additional separate components and complex assembly procedures are required
Solution Approach 1:
The threaded plate is designed to be pre-installed in the door or window frame before the mortise lock and rosette assembly. This preliminary installation creates a ready-made, standardized mounting interface that simplifies subsequent assembly steps. For retrofitting applications, the threaded plate can be installed first, then the entire mortise lock and rosette assembly can be mounted as a unit, significantly simplifying the retrofit process compared to attempting to add mounting components after the fact.
Data Source
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AI summary
The invention relates to a locking system (1) for doors (2) or windows comprising at least one opening and/or closing device in the form of a mortise lock (3), a follower element (4) extending along an axis of rotation (RA), and a rosette (5) surrounding the follower element (4) in a ring-like manner, as well as at least one handle (6, 6') that can be connected to the free end of the follower element (4) in a rotationally fixed manner about an axis of rotation (RA), wherein the mortise lock (3) can be inserted into a recess provided in the door or window, characterized in that the mortise lock (3) has a connecting element (7, 7') and that the rosette (5, 5') can be connected to the connecting element (7, 7') via a connecting sleeve (8, 8').