Plastic Net Double Warp Chains Reduce Weight

Solution Overview

Problem

Existing plastic nets face a challenge in achieving reduced material usage and weight without compromising strength, as thinner threads lack sufficient strength for functional purposes.

Innovation Solution

The plastic network is designed with chain groups, where multiple chains are knitted close together and connected by transverse threads, allowing for the use of thinner plastic threads while maintaining strength, and optionally forming double chains to enhance strength and reduce weight.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Weight of moving object

If thinner plastic threads are used to reduce material usage and weight, then weight and material cost are reduced, but strength is insufficient

Engineering Contradiction:

ImproveweightVSAvoidstrength

Core Design Contradiction:

Weight of moving objectVSStrength

Solution Approach 1:

The patent combines multiple chains (at least two chains) into a chain group where they run close together and are interconnected by transverse threads. This merging of multiple chain elements creates a collective structural strength that compensates for the reduced thickness of individual threads, allowing the use of thinner materials while maintaining overall net strength.

Inventive Principle:

Principle #5Merging (Combining)

Solution Approach 2:

The patent creates a composite structure by combining multiple chains with different orientations and connections through transverse threads. This composite chain group configuration distributes mechanical loads across multiple elements, achieving enhanced strength-to-weight ratio compared to single thick chains.

Inventive Principle:

Principle #40Composite materials

2Loss of substance

If thinner plastic threads are used to reduce material usage, then material cost is reduced, but strength is insufficient

Engineering Contradiction:

Improvematerial usageVSAvoidstrength

Core Design Contradiction:

Loss of substanceVSStrength

Solution Approach 1:

The patent combines multiple chains (at least two chains) into a chain group where they run close together and are interconnected by transverse threads. This merging of multiple chain elements creates a collective structural strength that compensates for the reduced thickness of individual threads, allowing the use of thinner materials while maintaining overall net strength.

Inventive Principle:

Principle #5Merging (Combining)

3Device complexity

If single chains are used to simplify structure, then device complexity is reduced, but strength is insufficient

Engineering Contradiction:

ImprovestructureVSAvoidstrength

Core Design Contradiction:

Device complexityVSStrength

Solution Approach 1:

The patent segments the net structure into distinct chain groups, where each group contains multiple chains running close together. This segmentation allows the complex multi-chain structure to be organized into manageable units that can be systematically connected via transverse threads, making the complexity controllable while achieving enhanced strength.

Inventive Principle:

Principle #1Segmentation

Data Source

PatentEP3452650B1Synthetic netting with double warp chains

Publication Date: 2020.06.10 KARATZIS SA IND & HOTELIER ENTERPRISES HERAKLION

Figure 1
Figure 2A~2B
Figure 3

AI summary

The invention relates to a plastic mesh having a plurality of chains extending parallel to one another in a longitudinal direction, which plastic mesh has a plurality of groups of chains (2) adjacent to one another, which are in each case formed of at least two chains (2a, 2b). The groups of chains (2) have a greater spacing relative to one another or also relative to a further individual chain (1) than the chains (2a, 2b) within a group of chains (2). A thread (3) runs in a zigzag between two adjacent groups of chains (2) or also between one group of chains (2) and an individual chain (1) and connects the chains (1) or groups of chains (2).