Geometric Locking Keyring for Easy Secure Key Attachment
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Solution Overview
Problem
Conventional keyring devices with locking mechanisms are often rigid and difficult to manufacture, making it challenging to add or remove keys or fobs due to internal components, and require significant dexterity.
Innovation Solution
A securement device with a two-piece construction that transitions from a locked to an unlocked configuration using an external force, featuring a ring and housing with a lock member that allows reversible configuration changes without springs or separate internal components, facilitating easy addition and removal of items.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional locking mechanisms with internal components are used, then security is improved, but device complexity and manufacturing difficulty increase
Solution Approach 1:
The patent removes traditional internal locking components (springs, tumblers, etc.) and replaces them with a geometric locking mechanism where the lock member's shape itself provides the locking function. The lock member features a narrowed section that physically blocks the ring's path when engaged, eliminating the need for complex internal mechanisms while maintaining security.
Solution Approach 2:
The invention changes the fundamental parameter of the locking mechanism from mechanical component interaction to geometric parameter interaction. The lock member's cross-sectional dimensions (narrowed section vs. body) create the locking effect, transforming the locking principle from mechanical complexity to geometric simplicity.
2Reliability
If rigid locking mechanisms are used, then security is improved, but ease of operation deteriorates due to requiring significant dexterity
Solution Approach 1:
The patent introduces dynamic flexibility to the otherwise rigid locking system. The ring's ability to flex and expand allows users to apply force in multiple directions and configurations, making the locking and unlocking process more adaptable to different user dexterities while maintaining the security of the engaged position.
Solution Approach 2:
The lock member is segmented into distinct functional zones: a narrowed section for blocking (security) and a body portion that allows controlled deformation. This segmentation enables the mechanism to provide both security and ease of operation by allowing the user to deform one segment while the other maintains the lock.
3Reliability
If traditional multi-component locking mechanisms are used, then security is improved, but ease of manufacture deteriorates
Solution Approach 1:
The patent merges multiple traditional components (ring, lock member, housing) into a simplified assembly where the lock member serves multiple functions simultaneously: it provides the locking barrier, guides the ring's movement, and defines the engagement geometry. This merging reduces the number of manufacturing steps and assembly operations required.
Solution Approach 2:
The lock member is designed as a universal component that performs multiple functions: blocking the ring's path when engaged, guiding the ring during engagement/disengagement, and providing structural support. This multi-functionality reduces the total component count and simplifies the manufacturing process while maintaining security.
Data Source
AI summary
A securement device is provided. The securement device comprising: a ring comprising coplanar facing ends separated by a space; and a housing, a lock member positioned at least partially within the housing, wherein the lock member comprises a neck having a width less than the space, and a body having at least a portion with a width greater than the space; wherein the article is configured to adjust from a locked configuration to an unlocked configuration; the locked configuration preventing rotational translation of the ring through the housing; and the unlocked configuration allowing rotational translation of the ring through the housing.