Detachable Handle With Pivotable Hooks and Thermal Insulation

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Solution Overview

Problem

Existing door handles pose a risk of pathogen transmission due to frequent public use, as users must still contact them despite efforts to minimize contact, such as using alternative body parts.

Innovation Solution

A detachable handle with a handle assembly featuring a friction surface made of thermal insulation material and pivotable/rotatable hooks at each end, allowing for secure attachment to external surfaces without direct contact, constructed from materials like metal, plastic, wood, or rubber.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Object-affected harmful factors

If a traditional door handle is used, then the door can be opened, but the user must directly contact the public door handle which increases pathogen exposure risk

Engineering Contradiction:
Improvepathogen exposure riskVSAvoidease of door opening
Core Design Contradiction:
Object-affected harmful factorsVSEase of operation

Solution Approach 1:

The detachable handle assembly serves as an intermediary between the user's hand and the public door handle. The hooks attach to the door handle while the user grips the isolated handle assembly, preventing direct contact with pathogens on the public surface.

Inventive Principle:
Principle #24Intermediary (Mediator)

Solution Approach 2:

The door opening function is segmented into two separate components: the detachable handle assembly that the user contacts, and the fixed door handle that remains on the door. This segmentation allows the user to avoid contact with the public surface while still achieving the door opening function.

Inventive Principle:
Principle #1Segmentation

2Object-affected harmful factors

If a detachable handle assembly is used to avoid contact, then pathogen exposure is reduced, but the device complexity increases due to hooks and movable components

Engineering Contradiction:
Improvepathogen exposure riskVSAvoidstructure complexity
Core Design Contradiction:
Object-affected harmful factorsVSDevice complexity

Solution Approach 1:

The hooks are designed to be movable rather than fixed, allowing them to pivot and rotate to match the orientation of the door handle. This dynamic capability simplifies the attachment process and reduces the need for complex adjustment mechanisms while ensuring reliable connection.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The movable hooks automatically orient themselves to match the door handle orientation through pivoting and rotating motions. This self-adjusting capability eliminates the need for complex manual alignment mechanisms, reducing overall device complexity while maintaining functionality.

Inventive Principle:
Principle #25Self-service

3Ease of operation

If the handle assembly is made with thermal insulation material, then gripping comfort is improved, but the manufacturing cost and material selection complexity increase

Engineering Contradiction:
Improvegripping comfortVSAvoidmanufacturing simplicity
Core Design Contradiction:
Ease of operationVSEase of manufacture

Solution Approach 1:

The handle assembly combines thermal insulation material with other materials to create a composite structure that provides both gripping comfort and structural integrity. This approach allows the use of simpler manufacturing processes for each material layer while achieving the desired thermal properties.

Inventive Principle:
Principle #40Composite materials

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

The detachable handle provides a portable solution for users to avoid direct contact with public door handles, reducing exposure to pathogens while offering secure attachment through pivotable hooks and thermal insulation for comfort.

Implementation Method 1

a friction surface disposed on at least a portion of a center portion of the handle assembly to facilitate gripping thereof, The friction surface may be constructed of a thermal insulation material.

Methodology Applied
Scientific EffectThermal insulation: Thermal Insulation

Data Source

PatentUS20220186522A1Detachable handle
Publication Date: 2022.06.16 CLEMONS AARON
  • US20220186522A1 patent drawing
  • US20220186522A1 patent drawing

AI summary

A detachable handle, including a handle assembly, a friction surface disposed on at least a portion of a center portion of the handle assembly to facilitate gripping thereof, and a plurality of hooks, including a first hook movably disposed on at least a portion of a first end of the handle assembly to detachably connect to an external surface, and a second hook movably disposed on at least a portion of a second end of the handle assembly to detachably connect to the external surface.