Key Retention Slider Mechanism for Unified Key Accountability
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Solution Overview
Problem
Existing key retention systems fail to ensure that multiple keys are retained or released in unison, leading to issues with key users borrowing multiple keys at once and not returning them to a central location, which hinders others' access and accountability.
Innovation Solution
A key retention system with an elongate housing and slider assembly that allows multiple home keys to be retained or released simultaneously through a rack and pinion mechanism actuated by a visitor key, ensuring that all home keys are locked or unlocked together, with a mechanism to prevent unauthorized access.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a central keybox is provided for collective key storage, then key accessibility is improved, but key accountability deteriorates because users can borrow multiple keys without restriction
Solution Approach 1:
The patent combines multiple key retention functions into a single integrated keybox unit. Multiple home keys are stored together in one secure location with a unified locking mechanism, allowing all keys to be retained or released simultaneously through a single visitor key operation, thereby maintaining both accessibility and accountability
Solution Approach 2:
The patent implements a feedback mechanism where the visitor key operation provides immediate information about the state of home keys. When a visitor key is inserted and operated, the system provides visual or tactile feedback indicating which home keys are retained and which are released, ensuring accountability through real-time status information
2Productivity
If multiple keys are released simultaneously, then operational efficiency is improved, but control over individual key usage deteriorates
Solution Approach 1:
The patent merges multiple key control functions into a single operational unit. The locking mechanism controls all home keys simultaneously through one visitor key operation, enabling efficient batch release while maintaining unified control through the single visitor key interface
Solution Approach 2:
The visitor key serves multiple functions: it can retain home keys, release home keys, and provide status information. This multi-functional design allows the system to handle various key management operations through a single universal key type, simplifying the control interface while maintaining operational efficiency
3Ease of operation
If a simple keybox without retention mechanism is used, then ease of use is improved, but prevention of unauthorized access deteriorates
Solution Approach 1:
The patent introduces the visitor key as an intermediary between the user and the home keys. The visitor key must be inserted and operated to effect any change in the state of home keys, providing a layer of control that prevents unauthorized access while maintaining ease of use through the simple insert-and-turn operation
Solution Approach 2:
The keybox system is designed to be self-regulating through the visitor key mechanism. The system automatically retains or releases home keys based on the visitor key operation without requiring external intervention or complex authorization protocols, maintaining both security and ease of use
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This system ensures that all home keys are securely locked or unlocked together, maintaining accountability and preventing unauthorized access, while allowing easy tracking of key usage and return.
Implementation Method 1
The slider assembly includes a toothed rack extending along its length for engagement by the visitor key pinion gear
Data Source
AI summary
The present invention provides an asset retention system, comprising: an elongate housing configured to receive a plurality of home keys and a visitor key; and an elongate slider coupled to the elongate housing and configured to selectively retain and release the plurality of home keys and the visitor key; wherein the elongate slider comprises a plurality of keyed holes corresponding to the plurality of home keys; wherein the plurality of keyed holes each comprise a narrowed portion configured to retain an associated home key when the elongate slider is translated in a first direction and a widened portion configured to release the associated home key when the elongate slider is translated in a second direction; and wherein the plurality of home keys are selectively retained and released simultaneously. The elongate housing and elongate slider are disposed in a cabinet. Each of the plurality of home keys is coupled to an asset.