Euro Profile Cylinder Lock Adapter Block for Snapping Resistance
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Solution Overview
Problem
Euro profile cylinder locks are prone to snapping under strong loads due to their design, compromising their structural strength and security, as the fixing hole creates a weak 'bridge' of material that can be easily broken, allowing intruders to access the lock.
Innovation Solution
A locking system with an adaptable design that uses interchangeable adaptor blocks to accommodate either a standard euro profile cylinder or an alternative profile cylinder with increased strength, modifying the opening shape to fit different cylinder profiles and enhance security by increasing the cross-sectional area at the snap point, thereby reducing the likelihood of snapping.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If a euro profile cylinder lock is used, then the lock can be mass-manufactured and is widely compatible, but the lock is prone to snapping under strong loads due to the narrow central section with fixing hole
Solution Approach 1:
The locking system is divided into two separable components: a standard euro profile cylinder lock (which can be mass-manufactured) and a strengthening adapter block. The adapter block segments the weak central section by introducing additional material that bridges the fixing hole, effectively dividing the load path and preventing snap attacks while maintaining compatibility with existing euro profile locks.
Solution Approach 2:
The adapter block serves as an intermediary component between the euro profile cylinder lock and the door frame. It mediates the structural weakness by providing additional material strength around the vulnerable central section, distributing stresses and preventing the snapping failure mode while allowing the original euro profile lock to function as designed.
2Strength
If the lock cylinder design is changed to increase strength, then resistance to snapping is improved, but compatibility with existing euro profile locks is lost
Solution Approach 1:
The adapter block is designed with universal functionality to work with standard euro profile cylinder locks. It provides the strength enhancement needed to prevent snapping while maintaining full compatibility with existing euro profile locks, allowing the same adapter to be used across different lock models and manufacturers that follow the euro profile standard.
3Strength
If the central section with fixing hole is reinforced, then the lock strength is improved, but the device complexity increases
Solution Approach 1:
Rather than complicating the internal structure of the euro profile cylinder lock itself, the solution segments the strengthening function into a separate adapter block. This keeps the original lock design simple and unchanged while adding strength externally, avoiding increases in device complexity within the lock mechanism.
Solution Approach 2:
The adapter block acts as an intermediary that provides structural reinforcement without requiring modifications to the lock's internal mechanism. It simplifies the overall solution by keeping the lock design unchanged and adding strength through a separate, easily installed component.
Data Source
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AI summary
This invention presents a locking system (112) for a closure. The system comprises a casement lock (112) having a primary lock (116) moveable between secured and retracted position, a primary actuator (122) for movement of the primary lock, a secondary lock operable to prevent movement of the primary lock, and an opening (124) for receiving a cylinder lock (102) for selectively actuating the secondary lock. The cylinder lock (102) comprises a top section having a barrel with a through passage at either end, the barrels being separated by a cam opening. A lock (108) is provided at each end in the through passages, and a cam member (106) is located between the locks. A lower section extends along the length of the cylinder lock and has a bridge section joining the barrels at either end across the cam opening. The width of the top section is equal to the width of the lower section. The system also has an adaptor block (114) receivable in the opening to change its shape such that, with the adaptor block (114) in situ, the shape of the opening conforms to a euro profile cylinder lock. (Figure 4)