Vacuum Cleaner Filter Bag Sealing for Automatic Dust Containment
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Solution Overview
Problem
Existing vacuum cleaner filter bags have complex and costly closing mechanisms that are difficult to manufacture and require precise components for proper tightness, with additional complications in opening and closing operations.
Innovation Solution
A vacuum cleaner filter bag with a simple and reliable closing device that automatically adjusts positions based on the bag's insertion into the vacuum cleaner, using a spring element and foldable design to ensure dust containment and compact storage, and optionally includes a sealing element for enhanced sealing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a complex closing mechanism with click springs and precise camber is used to achieve adequate closing force and large opening angle, then the closing function is reliable, but the manufacturing precision requirements increase and device complexity increases
Solution Approach 1:
The closing device is segmented into a closing element and a retaining plate that can move relative to each other. The closing element is disposed at a distance from the inlet opening and connected via a closing mechanism, separating the sealing function from the actuation mechanism, thereby reducing precision requirements for each individual component.
Solution Approach 2:
A retaining plate is introduced as an intermediary component between the closing element and the inlet opening. The retaining plate can be displaced between a first position (allowing access) and a second position (blocking the opening), mediating the closing action and reducing the precision demands on the closing element itself.
2Ease of operation
If a closing mechanism with large opening angle is designed to permit adequate opening during operation, then the opening function is sufficient, but the device complexity increases
Solution Approach 1:
The retaining plate is designed to be displaceable between two positions, creating a dynamic structure that adapts to operational needs. This dynamic positioning allows the system to achieve adequate opening angle during operation while maintaining a simpler overall structure compared to mechanisms designed for continuous large-angle movement.
3Reliability
If high precision components are used to achieve adequate closing force, then the closing tightness is sufficient, but the manufacturing cost increases
Solution Approach 1:
By segmenting the closing system into a closing element, closing mechanism, and retaining plate, the patent distributes the functional requirements across multiple simpler components rather than requiring one highly precise component, thereby reducing manufacturing cost while maintaining closing tightness.
Solution Approach 2:
The closing mechanism is designed to provide adequate closing force through its mechanical arrangement without requiring high-precision manufacturing. The system self-adjusts to achieve sufficient tightness through the interaction between the closing element and retaining plate, reducing the need for expensive precision components.
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 solution provides a cost-effective, easy-to-manufacture closing mechanism that maintains dust containment during non-operation and extends the filter bag's service life by evenly distributing filter cake, while allowing for compact storage and easy installation.
Implementation Method 1
using a spring element and foldable design to ensure dust containment
Data Source
AI summary
The present invention relates to a vacuum cleaner filter bag comprising an inlet opening, a retaining plate, which is situated on the exterior of the bag in the vicinity of the inlet opening and can be attached to a retaining device of a vacuum cleaner in order to fix the vacuum cleaner filter bag, and a closing device situated in the vicinity of the inlet opening, which is configured in such a way that it adopts a first position when the retaining plate is not attached to the retaining device and a second position by the attachment of the retaining plate to the retaining device, wherein the inlet opening is closed in the first position of the closing device and is open in the second position of the closing device.