Pleated Filter Holder Assembly to Prevent Tearing Damage

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Solution Overview

Problem

Existing filter medium holders risk damaging pleated filters during assembly due to excessive tension, particularly when folding higher numbers of pleats.

Innovation Solution

A holder with a support device and a fixing device, where the fixing elements are movable and introduced sequentially into gaps between support elements, allowing for reliable folding and retention of the filter medium without excessive tension, and featuring a locking mechanism to secure the pleated structure.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If one part is pushed into the other to assemble the filter holder, then the filter medium is held in folded form, but the filter medium risks tearing due to excessive tension

Engineering Contradiction:
Improvefilter medium integrityVSAvoidtearing damage
Core Design Contradiction:
ReliabilityVSObject-affected harmful factors

Solution Approach 1:

The holder is divided into two separate parts: a support device with support elements and a fixing device with fixing elements. These parts are assembled separately and then connected, allowing the filter medium to be folded and secured without the damage risk of pushing one part into another. The segmentation enables controlled folding and fixing processes.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The filter medium is pre-folded into the desired pleated configuration before being placed into the holder. The support elements and fixing elements are positioned in advance to receive and secure the pre-folded filter medium, preventing excessive tension and tearing during the folding process itself.

Inventive Principle:
Principle #10Preliminary action

2Productivity

If multiple fixing elements are introduced simultaneously, then the filter medium is secured quickly, but excessive tension causes damage to the filter medium

Engineering Contradiction:
Improveassembly speedVSAvoidfilter medium integrity
Core Design Contradiction:
ProductivityVSReliability

Solution Approach 1:

The fixing elements are introduced in a sequential, periodic manner rather than simultaneously. Each fixing element is inserted one after another, allowing the filter medium to be gradually secured without experiencing excessive tension from multiple simultaneous fixing actions. This periodic introduction maintains both assembly efficiency and filter medium integrity.

Inventive Principle:
Principle #19Periodic action

Data Source

PatentEP2979742B1Holder for a filter medium
Publication Date: 2022.09.21 EUROLIFTERS HLDG NV
  • EP2979742B1 patent drawingFigure 1~2
  • EP2979742B1 patent drawingFigure 3~4
  • EP2979742B1 patent drawingFigure 5

AI summary

The invention relates to a holder for a filter medium, comprising a support device and a fixing device, the support device having a plurality of support elements which are arranged parallel to one another and are each separated from one another by a gap, the fixing device having a plurality of fixing elements which are each divided into a Space between two support elements are arranged insertable, wherein the fixing elements are arranged individually and / or movable relative to each other.