Concealed Handcuff Key in Hollow Bracelet

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Solution Overview

Problem

Law enforcement and military personnel face danger when handcuffed, as malefactors may search for standard handcuff keys, leading to a need for concealed keys that can be overlooked during searches.

Innovation Solution

Concealed handcuff keys are integrated into everyday items like bracelets, which have a small profile and are designed to be overlooked, featuring a cylindrical shape with a lock engagement portion and protrusion to fit within standard handcuff keyways, ensuring functionality while appearing as common items.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If a standard handcuff key is carried openly, then it is easily accessible for unlocking handcuffs, but it can be easily discovered during searches by malefactors

Engineering Contradiction:

ImproveAccessibility of handcuff keyVSAvoidConcealment from malefactors

Core Design Contradiction:

Ease of operationVSDifficulty of detecting and measuring

Solution Approach 1:

The handcuff key is nested within a hollow bracelet, with the key fitting inside the hollow cavity of the bracelet structure. This allows the key to be concealed within an everyday item that would not be suspected during a search, while remaining accessible to the wearer.

Inventive Principle:

Principle #7Nested doll (Nesting)

Solution Approach 2:

The hollow bracelet serves as an intermediary container that hides the handcuff key from view during searches. The bracelet acts as a mediator between the need for key accessibility and the need for concealment, allowing the key to be carried without drawing attention.

Inventive Principle:

Principle #24Intermediary (Mediator)

2Difficulty of detecting and measuring

If a handcuff key is concealed within a bracelet, then it is hidden from malefactors during searches, but it must maintain full functionality for unlocking handcuffs

Engineering Contradiction:

ImproveConcealment from malefactorsVSAvoidHandcuff key functionality

Core Design Contradiction:

Difficulty of detecting and measuringVSReliability

Solution Approach 1:

The bracelet is designed with a hollow cavity that provides the exact space needed to house the handcuff key. The local structural quality of the hollow bracelet allows it to serve both as a concealment device and as a protective container that maintains key functionality.

Inventive Principle:

Principle #3Local quality

Solution Approach 2:

The hollow bracelet serves multiple functions: it acts as jewelry/wearability item, provides concealment for the key, protects the key from damage, and allows for easy retrieval. This multi-functionality resolves the contradiction between concealment and reliability.

Inventive Principle:

Principle #6Universality (Multi-functionality)

Data Source

PatentUS8667822B1Bracelet concealing handcuff key

Publication Date: 2014.03.11 SHOMER TEC

AI summary

Described herein are examples of concealed handcuff keys including a key concealed as a bracelet.