Pleated Greenhouse Insect Netting for Even Glass Panel Closure

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Solution Overview

Problem

Existing insect netting for greenhouses results in uneven closure of glass panels, leading to warping and draughts, and potential breakage due to uneven distribution of load on the framework.

Innovation Solution

The insect netting is designed with reduced overlap between side and front gauze webs by connecting the second short side of side gauze webs to the longitudinal side of front gauze webs facing towards the hinging axis, reducing thickness at the mergers and ensuring even closure, which minimizes warping and draughts.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Strength

If the second end of side gauze webs is overlapping with the end of front panel gauze web and connected by stitching along the sides of the overlapping area, then the connection between side panels and front panel is secure, but the thickness at the merger area increases causing uneven closure and warping of the glass panel

Engineering Contradiction:

Improveconnection strengthVSAvoidpanel flatness

Core Design Contradiction:

StrengthVSShape

Solution Approach 1:

The invention extracts the overlapping area from the design by connecting the second short side of side gauze webs directly to the longitudinal side of front gauze webs facing towards the hinging axis, eliminating the excessive thickness at the merger area that causes warping

Inventive Principle:

Principle #2Taking out (Extraction)

Solution Approach 2:

Instead of overlapping side gauze webs on top of front panel gauze webs (prior art approach), the invention inverts the connection approach by attaching the short side of side webs to the longitudinal side of front webs, reversing the traditional overlapping method to achieve thinner, more uniform closure

Inventive Principle:

Principle #13The other way round (Inversion)

2Reliability

If the glass panel or surrounding framework is warped when closed, then the center rests onto the window profile while outer ends remain above it, but this results in broken glass panels and undesired draughts

Engineering Contradiction:

Improveglass panel integrityVSAvoiddraught occurrence

Core Design Contradiction:

ReliabilityVSObject-affected harmful factors

Solution Approach 1:

The invention applies preliminary anti-action by designing the connection structure to prevent warping before it occurs. By connecting side gauze webs to the longitudinal side of front webs rather than overlapping them, the design pre-empts the warping problem that would otherwise cause the framework to warp and create draughts

Inventive Principle:

Principle #9Preliminary anti-action

Solution Approach 2:

The invention changes the geometric parameter of the netting structure at the merger area by eliminating overlap, thereby changing the thickness distribution and preventing the warping that leads to draughts and glass breakage

Inventive Principle:

Principle #35Parameter changes

Data Source

PatentUS12575507B2Insect netting for a greenhouse

Publication Date: 2026.03.17 HOLLAND GAAS BV

AI summary

An insect netting for a greenhouse includes a front panel merging into two side panels. The insect netting is pleated having bellows sections. Each bellows section has two parallel side bellows portions and a front bellows portion. Each side bellows portion comprises a first side gauze web and a second side gauze web connected to each other at a longitudinal side thereof, each having a first short side and a second short side. Each of the front bellows portions comprises a first front gauze web and a second front gauze web connected to each other along a longitudinal side thereof. The second short side of the first and second side gauze webs of the side bellows portions is connected to the longitudinal side of the first and second front gauze webs facing towards the hinging axis of the ventilation panel, respectively.