Segmented Foil Door Slit for Dust Control and Passage

Solution Overview

Problem

Existing foil doors for construction sites face challenges in preventing dust and dirt spread while allowing safe and easy passage, as current designs either result in a difficult-to-climb-through partial opening or allow dust and dirt to be carried between rooms when fully opened.

Innovation Solution

A foil door with a customizable opening slit that allows partial or complete opening, featuring a strip-shaped threshold area near the floor to prevent dust and dirt spread, and a zipper design that enables easy passage and secure closure, with adjustable slot sections and attachment methods for secure installation.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If the opening slot is fully opened to allow easy passage, then passage comfort is improved, but dust and dirt spread between rooms increases

Engineering Contradiction:

Improvepassage comfortVSAvoiddust and dirt spread

Core Design Contradiction:

Ease of operationVSObject-affected harmful factors

Solution Approach 1:

The opening slot is divided into multiple slot sections (first, second, third slot sections) that can be opened independently or in combination. This segmentation allows the passage to be opened to different degrees - partially or fully - enabling users to balance passage comfort with dust prevention needs based on actual requirements

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The slot sections are designed to be dynamically adjustable, allowing the passage configuration to change from a narrow triangular passage (when only partially opened) to a wider rectangular passage (when fully opened). This dynamic adjustment enables adaptation between comfort and dust prevention as needed

Inventive Principle:

Principle #15Dynamics

2Object-affected harmful factors

If the opening slot is partially opened to prevent dust and dirt spread, then dust prevention is improved, but passage comfort deteriorates

Engineering Contradiction:

Improvedust and dirt spreadVSAvoidpassage comfort

Core Design Contradiction:

Object-affected harmful factorsVSEase of operation

Solution Approach 1:

The opening slot is divided into multiple slot sections (first, second, third slot sections) that can be opened independently or in combination. This segmentation allows the passage to be opened to different degrees - partially or fully - enabling users to balance dust prevention with passage comfort needs based on actual requirements

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The slot sections are designed to be dynamically adjustable, allowing the passage configuration to change from a narrow triangular passage (when only partially opened) to a wider rectangular passage (when fully opened). This dynamic adjustment enables adaptation between dust prevention and comfort as needed

Inventive Principle:

Principle #15Dynamics

3Ease of operation

If the zipper is completely separated to create a rectangular passage, then passage width is improved, but the risk of stumbling and damaging the foil door increases

Engineering Contradiction:

Improvepassage widthVSAvoidrisk of stumbling and damage

Core Design Contradiction:

Ease of operationVSReliability

Solution Approach 1:

The opening slot is divided into multiple slot sections (first, second, third slot sections) that can be opened independently or in combination. This segmentation allows the passage to be opened to different degrees - partially or fully - enabling users to balance passage width with safety needs based on actual requirements

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The slot sections are designed to be dynamically adjustable, allowing the passage configuration to change from a narrow triangular passage (when only partially opened) to a wider rectangular passage (when fully opened). This dynamic adjustment enables adaptation between passage width and safety as needed

Inventive Principle:

Principle #15Dynamics

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

Ensures safe and comfortable passage while minimizing dust and dirt transfer between rooms, allowing for easy transportation of objects and easy installation, with adjustable access options to accommodate various door cutouts and applications.

Implementation Method 1

Slit edges 10, 11 of the opening slit are bordered by a zipper 12

Methodology Applied

Scientific EffectMechanical Fastening: Mechanical Fastener

Implementation Method 2

the film element 5 is fixed to opposite side edges 6, 7 and an upper edge 8 on the door frame 3 with the aid of double-sided adhesive tape

Methodology Applied

Scientific EffectAdhesion: Adhesive

Data Source

PatentEP2835488B1Film door

Publication Date: 2017.01.11 KIRCHNER GMBH

AI summary

The invention relates to a foil door, comprising a foil element (32; 62) made of a flexible foil material, which includes a lower edge (36; 66) and two side edges (33, 34, 63, 64), wherein the side edges adjoin the lower edge (36, 66), and with an opening slot (37; 72) extending from the lower edge (36; 66) and bordered by opposing slot edges (38, 39), which is equipped on at least one slot edge (38, 39) with closing means (40) for fixing the other slot edge and which comprises several slot sections (42, 43, 44, 45; 55, 56, 57, 58; 73).According to the invention, a first slot section (42; 55) extending along the lower edge (36; 66) is followed by a second slot section (43; 56) along an upper edge of the threshold area (46), a third slot section (44; 57) parallel to the first slot section, and a fourth slot section (45; 58) at least substantially parallel and in the opposite direction to the second slot section (43; 56).