Insect Screen Double Closure Magnetic Zipper System

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Solution Overview

Problem

Existing insect protection devices for open access openings, such as those in recreation rooms or vehicles, are not user-friendly due to the need to operate a zipper every time access is needed, compromising ease of use and reliability.

Innovation Solution

A double closure system featuring an inner zipper and an outer magnetic closure, where the magnetic closure automatically re-engages after passage, eliminating the need for manual operation and ensuring insect-proof sealing.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If a zipper is used as the closure device for the subdivision of the cover net, then the contour stability and assembly reliability are improved, but the ease of operation deteriorates due to the need to manually operate the zipper each time access is needed

Engineering Contradiction:
Improveclosure reliabilityVSAvoidoperation convenience
Core Design Contradiction:
ReliabilityVSEase of operation

Solution Approach 1:

The closure device is segmented into two independent closures arranged one behind the other: an inner zipper closure and an outer magnetic closure. The zipper provides reliable form-fitting connection for contour stability, while the magnetic closure enables automatic closing without manual operation, thus resolving the contradiction between reliability and ease of operation

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The magnetic closure component enables the closure system to serve itself by automatically closing after each passage through magnetic attraction, eliminating the need for manual zipper operation. This self-closing mechanism maintains reliability while dramatically improving ease of operation

Inventive Principle:
Principle #25Self-service

2Ease of manufacture

If a zipper is used as the closure device, then the assembly simplicity is improved, but the user-friendliness deteriorates due to frequent manual operation requirements

Engineering Contradiction:
Improveassembly simplicityVSAvoiduser-friendliness
Core Design Contradiction:
Ease of manufactureVSEase of operation

Solution Approach 1:

The closure device is divided into two independent functional components: the zipper for assembly and the magnetic closure for automatic operation. This segmentation allows the system to maintain assembly simplicity while achieving high user-friendliness through automatic closing

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The manual mechanical operation of the zipper is partially replaced by a magnetic field-based automatic closing mechanism. The magnetic attraction force automatically pulls the magnetic closure components together, eliminating the need for manual manipulation and significantly improving user-friendliness

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

3Ease of operation

If a magnetic closure is added to the zipper, then the ease of operation is improved through automatic closing, but the device complexity increases

Engineering Contradiction:
Improveoperation convenienceVSAvoidclosure system complexity
Core Design Contradiction:
Ease of operationVSDevice complexity

Solution Approach 1:

The closure system is segmented into two independent closures (zipper and magnetic) that can function separately. This modular segmentation allows the magnetic closure to be added without completely redesigning the existing zipper system, thereby improving ease of operation while limiting the increase in overall complexity

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The magnetic closure components are arranged one behind the other in the access direction, with the magnetic closure facing the outside and the zipper facing the inside. This nested arrangement allows both closures to occupy similar spatial boundaries, minimizing the increase in device complexity while enabling automatic closing functionality

Inventive Principle:
Principle #7Nested doll (Nesting)

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

Enhances user-friendliness and reliability by allowing easy passage without manual zipper operation, while maintaining a stable and insect-proof connection.

Implementation Method 1

the two each along one Has the edge of the subdivision arranged magnetic strips with each other attracting magnets

Methodology Applied
Scientific EffectMagnetic attraction: Magnetism

Data Source

PatentEP3730325B1Insect protection device for an access opening
Publication Date: 2021.04.07 MAYR GERHARD
  • EP3730325B1 patent drawingFigure 1~4

AI summary

In an insect screen device for an open access opening (2) to a living space, which can be closed by means of a door (3) and has a cover net (4) by means of which the access opening (2) can be covered and which can be detachably fixed with its edge in the area of ​​the edge of the access opening (2) and has at least one vertical division (8) which can be selectively bridged by means of an associated closing device (9) containing a zipper (10), a high level of user-friendliness and good ease of assembly can be achieved by the closing device (9) having two closures arranged one behind the other in the access direction, which can be operated independently of each other, wherein in addition to the zipper (10) associated with the inside of the cover net (4) a magnetic closure (11) associated with the outside of the cover net (4) is provided, which has two magnetic strips (11a) arranged each along an edge of the division (8),b) with mutually attracting magnetic elements (15).