Flexible Connector Door Security Device for Emergency Deployment

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Solution Overview

Problem

Existing door security devices often require fine motor control, which is impaired in stressful situations, and may necessitate permanent attachment to the door, violating building codes, while also being unable to secure doors in both directions or without hardware.

Innovation Solution

A door security device featuring a flexible connector with anchor points and a storage element, allowing the connector to be easily extended and secured to both the wall and door, utilizing gross motor skills and avoiding permanent attachment.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If conventional door security devices are used, then door security is provided, but fine motor control is required which is degraded in stressful situations

Engineering Contradiction:
Improvedoor securityVSAvoidfine motor control requirement
Core Design Contradiction:
ReliabilityVSEase of operation

Solution Approach 1:

The device is divided into separate functional components: a base unit with anchor points mounted to the wall, and a flexible connector that can be independently manipulated. This segmentation allows the user to only manipulate the flexible connector portion during emergency deployment, avoiding the need to handle complex assembled mechanisms with degraded motor control.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The flexible connector is extracted as a separate, removable component from the base unit. This allows the connector to be quickly removed and manipulated independently during stress situations, eliminating the need to coordinate multiple components simultaneously and reducing the motor skill requirements for operation.

Inventive Principle:
Principle #2Taking out (Extraction)

2Reliability

If permanent attachment hardware is mounted to the door, then door security is achieved, but building codes are violated

Engineering Contradiction:
Improvedoor securityVSAvoidbuilding code compliance
Core Design Contradiction:
ReliabilityVSAdaptability or versatility

Solution Approach 1:

The base unit serves as an intermediary element mounted to the wall structure rather than the door itself. The flexible connector acts as a temporary mediator between the base unit and the door, allowing security function to be achieved without permanent attachment to the door, thus complying with building codes while maintaining security effectiveness.

Inventive Principle:
Principle #24Intermediary (Mediator)

Solution Approach 2:

The device transitions from a static permanent attachment system to a dynamic temporary system. The flexible connector can be quickly deployed and removed without permanent modification to the door or wall, providing adaptability between different usage states while maintaining code compliance through its removable nature.

Inventive Principle:
Principle #15Dynamics

3Ease of operation

If single-direction security devices are used, then ease of operation is improved, but door security in both directions is insufficient

Engineering Contradiction:
Improvesingle-direction operationVSAvoidbidirectional door security
Core Design Contradiction:
Ease of operationVSReliability

Solution Approach 1:

The base unit with its multiple anchor points and the flexible connector's flexibility enable the same device to secure doors against forces applied in multiple directions. The system provides universal security coverage for both push and pull attempts, eliminating the need for separate single-direction devices while maintaining ease of operation through a single unified mechanism.

Inventive Principle:
Principle #6Universality (Multi-functionality)

Data Source

PatentUS10392841B2Door security device
Publication Date: 2019.08.27 LOCKDOWN INT LLC
  • US10392841B2 patent drawing
  • US10392841B2 patent drawing
  • US10392841B2 patent drawing

AI summary

A door security apparatus includes: a base defining a first anchor point and at least one second anchor point; a storage element carried by the base; and a flexible connector carried by the storage element and having a proximal end and a distal end, wherein the proximal end is connected to the first anchor point, the flexible connector being moveable between a first stored position within the storage element, and a second extended position.