Nylon 66 Security Lock for Inward-Opening Doors
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Solution Overview
Problem
Existing security measures for inwardly opening doors, such as hotel room doors, are vulnerable to unauthorized access and can be easily defeated by intruders, and they lack effective security when occupants are not present or have forgotten to engage security devices.
Innovation Solution
A durable and inexpensive plastic security lock system that can be easily attached to inwardly opening doors, using a 50/50 blend of glass-filled black nylon 66 and industrial grade straight nylon 66 plastic, which includes a locking member that prevents removal without a padlock, ensuring the door cannot be opened from the outside without specialized tools, while allowing inside access without removing the lock.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If existing security measures (chains, swing bars, dead bolts) are used on inwardly opening doors, then some security is provided, but they can be easily defeated by intruders and lack effective security when occupants are absent
Solution Approach 1:
The security system is divided into separate functional components: a securement device that attaches to the door, a locking member that engages with the securement, and a padlock that secures the locking member. This segmentation allows each component to perform its specific function while collectively providing robust security that is difficult to defeat.
Solution Approach 2:
The securement device is pre-installed on the door before the locking member is engaged. This preliminary attachment ensures that the door is prepared and positioned correctly before the locking mechanism is activated, preventing any adjustment or manipulation during the locking process.
2Reliability
If a padlock is used to secure the locking member, then security is enhanced, but the device complexity increases
Solution Approach 1:
The locking member serves multiple functions: it engages with the securement device to prevent door opening, provides a mounting point for the padlock, and acts as a structural connector between the door and the securing mechanism. This multi-functionality reduces the need for separate components and simplifies the overall system.
Solution Approach 2:
The locking member acts as an intermediary element between the securement device and the padlock. It translates the securing action of the padlock into effective door locking, providing a mechanical advantage that simplifies the interaction between the various security components.
3Reliability
If the locking member is designed to prevent removal without a padlock, then security is improved, but the ease of operation for legitimate occupants is reduced
Solution Approach 1:
The locking mechanism transitions from a static locked state to a dynamic unlocked state through the padlock engagement and disengagement. The locking member can be easily removed when the padlock is opened, allowing occupants to quickly access the door while maintaining security when locked. This dynamic interaction balances security with ease of operation.
Solution Approach 2:
The system is designed to be self-servicing for legitimate occupants: the padlock can be easily opened with the correct key, the locking member can be removed without tools, and the securement device can be detached and reattached by the occupants. This self-service capability ensures that authorized users can access the door quickly without requiring assistance from security personnel.
4Strength
If a durable plastic material (50/50 blend of glass-filled black nylon 66 and industrial grade straight nylon 66) is used, then the lock durability is improved, but the manufacturing cost increases
Solution Approach 1:
The locking member is made from a composite plastic material consisting of a 50/50 blend of glass-filled black nylon 66 and industrial grade straight nylon 66. This composite structure combines the strength and durability of glass-filled nylon with the flexibility and processability of straight nylon, achieving high durability while maintaining manufacturing feasibility and cost-effectiveness.
Solution Approach 2:
The material composition is optimized by adjusting the ratio of glass-filled nylon to straight nylon to achieve the desired balance between strength and manufacturability. The 50/50 blend provides sufficient durability for security applications while remaining cost-effective to manufacture through standard injection molding processes.
Data Source
AI summary
Certain exemplary embodiments can provide a system, which can comprise a securement. The securement comprises a rising member and defining at least a first slot. The system can comprise a locking member, the locking member defining an aperture. Wherein, when operatively coupled to the securement, a padlock coupled to the locking member via the aperture prevents removal of the locking member from the securement.