User-worn electrical appliance including interchangeable harness assembly and method of using same
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Solution Overview
Problem
Existing user-worn electrical appliance harnesses require frequent adjustment for different users and are difficult to clean or sanitize, often necessitating the use of tools for connection and disconnection from the appliance.
Innovation Solution
A modular harness assembly with upper and lower support assemblies featuring adjustable pockets and flaps that allow for tool-free attachment and detachment from the appliance, enabling easy replacement and sanitation, and accommodating multiple users with customizable fit.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a harness is designed with adjustable straps and buckles to accommodate different users, then the adaptability is improved, but the device complexity increases
Solution Approach 1:
The harness is divided into multiple independent adjustable components including shoulder straps with slide buckles, a waist belt with adjustment mechanisms, and chest straps. Each segment can be independently adjusted to accommodate different user sizes and preferences, resolving the contradiction by providing customization without requiring a completely different harness for each user.
Solution Approach 2:
The harness incorporates dynamic adjustment mechanisms such as slide buckles that allow users to change the length and fit of straps during use. This enables the harness to adapt to different users and different usage scenarios, maintaining adaptability while using standardized components rather than multiple fixed-configuratio n harnesses.
2Duration of action of moving object
If the harness is exposed to contaminants and sweat during extended use, then the duration of action is improved, but object-generated harmful factors increase
Solution Approach 1:
The harness utilizes moisture-wicking and sweat-resistant materials that change properties in response to moisture exposure. The fabric is designed to repel sweat and contaminants while maintaining comfort during extended wear, allowing the harness to endure longer usage periods without accumulating harmful contaminants.
Solution Approach 2:
The harness is constructed from composite materials that combine durability with resistance to sweat and contaminants. These materials allow the harness to be worn for extended periods while resisting the accumulation of harmful substances, and can be easily cleaned or replaced when necessary.
3Strength
If traditional harness connection methods are used requiring tools, then the strength of connection is improved, but ease of operation deteriorates
Solution Approach 1:
The harness connection system replaces traditional mechanical fasteners requiring tools (screwdrivers, wrenches) with a quick-connect mechanism. This new mechanical system maintains strong connections while allowing tool-free attachment and detachment, resolving the contradiction between connection strength and ease of operation.
Solution Approach 2:
The quick-connect mechanism is designed to be self-servicing, allowing users to attach and detach the harness without external tools or assistance. The connection maintains sufficient strength for safe operation while enabling rapid deployment and removal by the user themselves.
Data Source
AI summary
A vacuum cleaner system includes a vacuum cleaner and a harness assembly removably connectable to the vacuum cleaner. The harness assembly includes an upper support assembly and a lower support assembly. The upper support assembly includes an upper back pad, at least one shoulder strap emanating from the upper back pad, an upper pocket in which an upper mounting plate of the vacuum cleaner is received, and an upper flap selectively connectable to the upper pocket to close the upper pocket and retain the upper mounting plate within the upper pocket. The lower support assembly includes a lower back pad, a waist belt emanating from the lower back pad, a lower pocket in which a lower mounting plate of the vacuum cleaner is received, and a lower flap selectively connectable to the lower pocket to close the lower pocket and retain the lower mounting plate within the lower pocket.