Reusable Cable Tie Adaptor for Reducing Plastic Waste

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Solution Overview

Problem

The widespread use of cable ties results in significant waste due to the discarding of redundant tail portions, which are often made of plastics, leading to environmental and financial inefficiencies, as these ties are typically single-use items with limited re-use options.

Innovation Solution

An adaptor system for cable ties that allows the re-use of redundant tail portions by converting them into elongate strips with integrated ratchet gear racks, which can be secured using a retaining element with pawls to form loops for securing items, thereby reducing waste and extending the life cycle of cable ties.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If cable ties are designed as single-use items with integrated ratchet gear racks, then ease of operation and reliability are improved, but material waste and environmental impact worsen due to discarding redundant tail portions

Engineering Contradiction:
Improveease of useVSAvoidmaterial waste
Core Design Contradiction:
Ease of operationVSLoss of substance

Solution Approach 1:

The cable tie system is divided into two separate components: a reusable end member containing the pawl mechanism and a disposable elongate strip containing the ratchet gear rack. This segmentation allows the expensive reusable components to be retained while only the cheaper strip is discarded, reducing material waste.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The reusable end member with the pawl is extracted as a separate component from the traditional integrated cable tie design. This extracted component can be reused multiple times with different elongate strips, reducing the frequency of replacement and material waste.

Inventive Principle:
Principle #2Taking out (Extraction)

2Ease of operation

If redundant tail portions are cut off and discarded, then ease of operation is improved by removing unsightly and interfering portions, but loss of substance worsens as most of the tail is wasted

Engineering Contradiction:
Improvepositioning of secured itemVSAvoidredundant tail portion
Core Design Contradiction:
Ease of operationVSLoss of substance

Solution Approach 1:

The reusable end member is extracted as a separate component that can be attached to different elongate strips. This allows the functional portion to be retained and reused while only the minimal necessary strip length is used and discarded, reducing waste of the plastic material.

Inventive Principle:
Principle #2Taking out (Extraction)

Solution Approach 2:

The system enables recovery and reuse of the expensive end member component while allowing discarding of the cheaper elongate strip. This selective discarding minimizes material waste by retaining the reusable components for future use with new strips.

Inventive Principle:
Principle #34Discarding and recovering

3Loss of substance

If collection and transportation of redundant tail portions for reformation is implemented, then loss of substance is reduced by recycling plastics, but device complexity and cost worsen due to additional processing requirements

Engineering Contradiction:
Improveplastics material wasteVSAvoidcollection, transportation, and treatment process
Core Design Contradiction:
Loss of substanceVSDevice complexity

Solution Approach 1:

The system enables end-users to perform their own reuse of end members without requiring external collection, transportation, or specialized treatment facilities. Users simply detach and reattach end members to new strips, eliminating the need for complex centralized recycling infrastructure.

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

The system changes the operational model from single-use disposable cable ties to a reusable end member with replaceable strips. This parameter change from ownership of entire cable ties to ownership of only the end member simplifies the reuse process and eliminates the need for complex collection and processing systems.

Inventive Principle:
Principle #35Parameter changes

4Loss of substance

If re-useable cable ties are used, then loss of substance is reduced by extending product life, but device complexity worsens due to additional mechanisms required for reuse

Engineering Contradiction:
Improvecable tie lifespanVSAvoidre-useable mechanism
Core Design Contradiction:
Loss of substanceVSDevice complexity

Solution Approach 1:

The cable tie system is segmented into a reusable end member and a replaceable elongate strip. This segmentation allows reuse of only the necessary mechanical components (end member with pawl) while simplifying the overall system by allowing easy replacement of the strip, maintaining low complexity.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

Instead of making the entire cable tie reusable with complex mechanisms, the invention inverts the approach by making only the end member reusable and the strip disposable. This inversion simplifies the reusable portion while achieving the goal of extending product life.

Inventive Principle:
Principle #13The other way round (Inversion)

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 adaptor system enables the re-use of redundant tail portions, reducing material waste and costs by allowing the elongate strips to be reused as secure fasteners, thus minimizing the environmental impact and financial expenses associated with single-use cable ties.

Implementation Method 1

The ratchet gear rack and pawl are configured such that the loop formed by the tail can be tightened but loosening is hindered or substantially prevented

Methodology Applied
Scientific EffectRatchet mechanism: Ratchet

Implementation Method 2

The capture device may have a pair of resiliently mounted pawls to engage with teeth on the tie providing ratchet and pawl self capturing

Methodology Applied
Scientific EffectElasticity: Elasticity

Data Source

PatentEP3862288B1An elongate strip and an adapter for use with the elongate strip, and method
Publication Date: 2023.10.11 SLATER NIGEL
  • EP3862288B1 patent drawingFigure 1~2
  • EP3862288B1 patent drawingFigure 3~4
  • EP3862288B1 patent drawingFigure 5~6

AI summary

An adaptor (100) for use with an elongate strip (11a), the adaptor comprising: a main body (101) defining a first through-hole (102a) and a second through-hole (102b), each through-hole being configured to receive at least part of the elongate strip; a first pawl (103) associated with the first through-hole and configured to engage at least part of the elongate strip; and a retaining element (104b) associated with the second through-hole and configured to retain at least part of the elongate strip such that the elongate strip is securable in a loop with respect to the adaptor around another item.