Backpack Debris Collection Bag for Better Blower Vac Mobility
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Solution Overview
Problem
Portable blowervacs face challenges with debris collection bags that obstruct user mobility and become uncomfortable due to increased weight as they fill with debris, as the bag is typically attached to the main housing and supported by the user's arms.
Innovation Solution
A collection bag design that separates from the main housing and is worn on the user's back, featuring a dust dispersion system, ergonomic shoulder harnesses, and a secure closure mechanism for easy one-handed emptying, with air permeable sections to prevent dust exposure and facilitate debris removal.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the collection bag is attached to the main housing, then the device structure is simple, but the user mobility is obstructed and the bag gets in the way during maneuvering
Solution Approach 1:
The collection bag is separated from the main housing into an independent wearable component. The bag can be detached and reattached, allowing it to be worn on the user's back during operation. This segmentation resolves the contradiction by improving user mobility while maintaining a relatively simple overall device structure through modular design.
Solution Approach 2:
The collection bag is extracted from the main housing assembly and positioned as a separate wearable unit on the user's back. This extraction eliminates the obstruction problem during maneuvering while the connection mechanism maintains structural simplicity. The bag can be easily attached and detached without complex assembly procedures.
2Ease of operation
If the collection bag is attached to the main housing, then the device structure is simple, but the weight distribution becomes uncomfortable as the bag fills with debris
Solution Approach 1:
By separating the collection bag from the main housing, the weight of the bag and its contents is distributed to the user's back through shoulder straps rather than being concentrated in the user's arms. This segmentation improves ergonomic comfort while maintaining simple attachment and detachment mechanisms.
Solution Approach 2:
The shoulder harness system acts as an intermediary between the collection bag and the user's body, distributing the weight across the shoulders and back. This intermediary structure improves weight distribution comfort without requiring complex integration with the main housing, as the bag can be independently worn.
3Ease of operation
If a traditional closure mechanism is used, then the device structure is simple, but opening and closing the bag is difficult and dust can escape
Solution Approach 1:
The closure mechanism is designed to be operated easily with one hand, allowing the user to open and close the bag independently without requiring assistance or complex procedures. The snap-fit or magnetic closure allows for quick engagement and disengagement, improving operational ease while maintaining relatively simple mechanism design.
4Quantity of substance
If the bag capacity is increased, then more debris can be collected, but the bag becomes heavier and more cumbersome
Solution Approach 1:
By making the collection bag a separate wearable unit with its own shoulder harness system, the patent enables increased bag capacity without compromising user comfort. The weight is distributed across the shoulders and back rather than concentrated in the arms, allowing for larger capacity while maintaining ease of operation and user comfort.
Data Source
AI summary
The present invention is directed to a debris collection bag for a blowervac device, that is carried on a user's back. This improves the user's mobility and allows an increased capacity for the collection bag. The bag's location provides a comfortable weight distribution by separating the weight of the blowervac from the weight of the collection bag. The bag has a dust dispersion system to direct dust away from the user. The bag has a closure located on the side which makes emptying the bag easier. The bag closure is provided to make opening and closing the bag easier and faster, and resistant to dust and debris.