Vacuum Cleaner Filter Bag Plate With In-Plane Split Closure

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Solution Overview

Problem

Existing retaining plates for vacuum cleaner filter bags face challenges in space efficiency and cost-effectiveness, as they often require large dimensions for closure mechanisms, leading to complex and expensive solutions that may not be environmentally friendly.

Innovation Solution

A retaining plate with two closure parts arranged in a plane parallel to the passage opening, allowing for a closing movement within the plane to block the passage opening, reducing the need for a single large closure element and enabling a space-saving, cost-effective design.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If a single large closure element is used to block the passage opening, then the closure function is achieved, but the retaining plate dimensions become too large for the limited installation space

Engineering Contradiction:
Improveclosure functionVSAvoidretaining plate area
Core Design Contradiction:
ReliabilityVSArea of stationary object

Solution Approach 1:

The closure element is divided into two separate closure parts (first closure part and second closure part) that can move independently relative to each other in the plane of the passage opening. Each closure part blocks a different portion of the passage opening, allowing the passage to be fully closed without requiring a single large closure element, thus reducing the overall retaining plate area while maintaining effective closure function

Inventive Principle:
Principle #1Segmentation

2Device complexity

If simple slide solutions are used for closure, then the structure is simple, but the retaining plate must be at least twice as large as the passage opening in the direction of movement

Engineering Contradiction:
Improveclosure mechanism complexityVSAvoidretaining plate length in movement direction
Core Design Contradiction:
Device complexityVSLength of moving object

Solution Approach 1:

The closure mechanism is segmented into two independent closure parts that move in the same plane as the passage opening. This segmentation allows each closure part to be smaller and move independently, eliminating the need for a single large closure element that would require the retaining plate to be twice as large as the passage opening, thus reducing the length in the movement direction while keeping the mechanism simple

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The closure parts move within the plane of the passage opening rather than perpendicular to it, utilizing the two-dimensional space available in the plane. This dimensional approach allows the closure to be achieved without extending the retaining plate length in the movement direction, as the closure parts can slide across the passage opening within its own plane

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

3Area of stationary object

If lamella-type slides or wound roll solutions are used, then the retaining plate size is reduced, but the production cost increases significantly

Engineering Contradiction:
Improveretaining plate areaVSAvoidproduction cost
Core Design Contradiction:
Area of stationary objectVSEase of manufacture

Solution Approach 1:

The closure element is segmented into two simple closure parts that can be manufactured using conventional molding techniques. This segmentation allows for simpler, more cost-effective production compared to complex lamella-type slides or wound roll solutions, while still achieving the space-saving benefit of reduced retaining plate area. The two closure parts can be produced as separate components and assembled, facilitating easier and less expensive manufacturing

Inventive Principle:
Principle #1Segmentation

4Extent of automation

If automatic slide solutions are used, then closure is automated, but the retaining plate dimensions remain too large for modern vacuum cleaners

Engineering Contradiction:
Improveclosure automationVSAvoidretaining plate area
Core Design Contradiction:
Extent of automationVSArea of stationary object

Solution Approach 1:

The automatic closure mechanism is implemented using two segmented closure parts that can cooperate with corresponding devices in the vacuum cleaner housing. This segmentation allows the closure parts to be smaller and move within a compact area, enabling automation while keeping the retaining plate area within the limited space available in modern vacuum cleaners

Inventive Principle:
Principle #1Segmentation

Data Source

PatentUS11517163B2Retaining plate for a vacuum cleaner filter bag, having a closure device
Publication Date: 2022.12.06 EUROLIFTERS HLDG NV
  • US11517163B2 patent drawing
  • US11517163B2 patent drawing
  • US11517163B2 patent drawing

AI summary

The present invention relates to a retaining plate 1 for a vacuum cleaner filter bag, including a base plate 2 having a passage opening 3 formed therein and a closure device for closing the passage opening 3, where the closure device includes two closure parts 4, 5 arranged in a plane parallel to the passage opening 3, and where the closure parts 4, 5 are movable relative to each other in the plane, so that, by a closing movement in the plane, they are movable to a closure position at which they close the passage opening 3 by overlapping each a respective part of the passage opening 3.