Adjustable Channel Net Structure for 3D Shape Conformity

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Solution Overview

Problem

Existing nets lack adjustability and flexibility in three-dimensional configurations, limiting their versatility and functionality in packaging, display, and protective applications.

Innovation Solution

A net design featuring longitudinal and transverse bands with intermittently adhered films forming channels, allowing for adjustable intersections and independent adjustability of transverse bands within channels, enabling geometric deformation and flexibility without relying on elasticity.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If commonly used nets are designed with fixed flat two-dimensional shapes folded into three-dimensional forms, then manufacturing simplicity is maintained, but adaptability and versatility are limited

Engineering Contradiction:
ImproveadjustabilityVSAvoidstructure
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The net is divided into longitudinal bands and transverse bands that can move independently relative to each other. Each longitudinal band contains channels formed by intermittently adhered films, allowing transverse bands to slide through them. This segmentation enables the net to change its geometric configuration from a fixed shape to an adjustable form, resolving the contradiction between adaptability and structural simplicity.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The net structure transitions from a static fixed configuration to a dynamic adjustable system. The channels in the longitudinal bands allow transverse bands to move freely, enabling the net to adapt its shape and size dynamically. This dynamic capability provides adjustability while maintaining a relatively simple overall structure, as the movement is achieved through the channel design rather than complex mechanical components.

Inventive Principle:
Principle #15Dynamics

2Adaptability or versatility

If nets are designed with fixed intersections, then structural integrity is maintained, but flexibility and ability to conform to various forms are reduced

Engineering Contradiction:
ImproveflexibilityVSAvoidstructural integrity
Core Design Contradiction:
Adaptability or versatilityVSStability of the object's composition

Solution Approach 1:

The intersection points are segmented into channels formed by intermittently adhered films in the longitudinal bands. These channels allow transverse bands to slide through while maintaining connection, creating movable intersections that preserve structural integrity through the adhesion zones while enabling flexibility through the non-adhered channel zones.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

Different zones within the longitudinal bands have different properties: adhered zones provide structural integrity and connection strength, while non-adhered channel zones provide flexibility and movement capability. This local differentiation of properties allows the net to simultaneously maintain structural integrity and achieve flexibility, resolving the contradiction between these two requirements.

Inventive Principle:
Principle #3Local quality

3Adaptability or versatility

If transverse bands are firmly adhered to longitudinal bands at intersections, then strength is maintained, but adjustability and geometric deformation capability are lost

Engineering Contradiction:
ImproveadjustabilityVSAvoidadhesion strength
Core Design Contradiction:
Adaptability or versatilityVSStrength

Solution Approach 1:

The adhesion between longitudinal and transverse bands is segmented into discrete zones rather than being continuous. The intermittently adhered films create separate adhesion zones that maintain strength at specific points while leaving channel zones free for movement. This segmented adhesion approach allows the net to achieve both adjustability through band movement and strength through localized adhesion points.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The adhesion system transitions from a static firm connection to a dynamic system where adhesion strength varies by location. The intermittent adhesion creates a dynamic balance between strong connection zones and movable channel zones, enabling the net to adjust its configuration while maintaining sufficient strength at the adhesion points to prevent failure under load.

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

The design provides a net with adjustable shape and strength, enhancing its ability to conform to various forms and protect contents while maintaining structural integrity under external forces.

Implementation Method 1

each longitudinal band of the plurality of longitudinal bands includes two intermittently adhered films forming channels at discontinuities of adhesion between the films

Methodology Applied
Scientific EffectAdhesion: Adhesive

Implementation Method 2

at least one channel of the channels includes a semi-adhered zone, a non-adhered zone, a friction zone or a combination thereof between the channel and the transverse bands

Methodology Applied
Scientific EffectFriction: Friction

Data Source

PatentEP3986824B1A net
Publication Date: 2025.11.12 TAMA GRP
  • EP3986824B1 patent drawingFigure 1
  • EP3986824B1 patent drawingFigure 2A~2B
  • EP3986824B1 patent drawingFigure 3A

AI summary

A net including a plurality of transverse bands, intersecting a plurality of longitudinal bands, the plurality of longitudinal bands each comprising two intermittently adhered films forming channels at discontinuities of adhesion between the films, and wherein at least one intersection of the longitudinal and transverse bands at least one transverse band is threaded through at least one of the channels of at least one longitudinal band.