Polygonal-Pin Locking System for Internal Security and Emergency Release
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Solution Overview
Problem
Existing door and window locking systems do not allow for secure locking from one side, particularly in rooms requiring internal security like bathrooms or toilets, and lack efficient emergency release mechanisms.
Innovation Solution
A locking system featuring a polygonal pin with a base pin and engagement element that can switch between a holding and release state, combined with an emergency release slide, allowing secure locking and easy unlocking from one side using a handle-operated mechanism.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a conventional locking system with polygonal pin and lock nut is used, then the door can be locked from the outside, but the door cannot be secured from the inside and requires complex multi-component assemblies
Solution Approach 1:
The locking system is divided into functionally independent segments: the polygonal pin handles locking engagement, while the sliding mechanism handles the locking action. This segmentation allows each component to perform its specific function efficiently without requiring complex integration, resolving the contradiction between operational ease and assembly complexity.
Solution Approach 2:
The locking function is extracted from the handle assembly and implemented as a separate sliding mechanism that operates independently. This extraction allows the handle to remain simple while the locking action is performed by a dedicated component, reducing overall assembly complexity while maintaining ease of operation.
2Reliability
If internal locking is implemented using existing mechanisms, then secure locking from inside is achieved, but the mechanism becomes overly complex and difficult to manufacture
Solution Approach 1:
The sliding mechanism is designed with localized functionality - it only performs the locking action when needed, rather than being integrated into every component. This local quality approach ensures reliable internal locking while keeping individual components simple and easy to manufacture.
Solution Approach 2:
The system uses a dynamic sliding mechanism that can move between locked and unlocked positions, providing reliable internal locking when required while maintaining simplicity in the overall design. The dynamic nature of the slide allows it to engage and disengage cleanly, ensuring manufacturing simplicity without compromising security.
3Adaptability or versatility
If emergency release functionality is added to existing locking systems, then emergency unlocking capability is provided, but the system complexity increases significantly
Solution Approach 1:
The sliding mechanism serves multiple functions: normal locking operation, internal locking, and emergency release. By making this single component multi-functional, the system achieves emergency release capability without significantly increasing overall complexity, as the same slide handles all three operations.
Solution Approach 2:
The slide acts as an intermediary component that mediates between the handle operation and the locking mechanism. It provides a simple interface for emergency release while maintaining the complexity of the locking function internally, thus adding versatility without proportionally increasing system complexity.
Data Source
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AI summary
A locking system for a door or window is proposed, comprising a first handle (14, 72), a second handle (16, 74) and a polygonal pin (22, 80, 140) which engages at a first end (26, 84) in a rotationally fixed manner in the first handle (14, 72), engages at a second end (30, 88) in a rotationally fixed manner in the second handle (16, 74) and which includes a base pin (24, 82) extending continuously between the two handles (14, 16, 72, 74), characterized by a bolt slide (44, 96) which is displaceable on the base pin (24, 82) in the axial direction of the polygonal pin (22, 80, 140).The multi-sided pin (22, 80, 140) comprises an engagement element (36, 94, 150) for engagement in a lock nut (40) of a lock (42), which is rotatably mounted relative to the base pin (24, 82) and which can be switched between a holding state, in which it is rotationally fixed relative to the base pin (24, 82), and a release state, in which it is rotatable relative to the base pin (24, 82), by means of the bolt slide (44, 96).