Snap-Fit Biodegradable Utensil Assembly for Compact Packaging

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Solution Overview

Problem

Existing utensils provided with food products often lack efficient packaging and assembly methods, leading to inconvenience and potential breakage during use.

Innovation Solution

A constructible utensil composed of two interlocking parts made of biodegradable materials like wood, designed to be compactly packaged and easily assembled by snapping the parts together, enhancing both packaging efficiency and utility.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If a utensil is provided as a single-piece plastic item, then it is strong and durable, but it contributes to plastics waste and is not biodegradable

Engineering Contradiction:
ImprovestrengthVSAvoidplastics waste
Core Design Contradiction:
ReliabilityVSObject-generated harmful factors

Solution Approach 1:

The utensil is divided into two separate parts (handle and head) that can be assembled together. This segmentation allows each part to be optimized for strength while using biodegradable materials, resolving the contradiction between durability and environmental friendliness

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The invention uses composite construction with interlocking parts made from biodegradable materials like wood, paper, or molded fiber. This composite approach maintains structural integrity while eliminating plastic waste

Inventive Principle:
Principle #40Composite materials

2Object-generated harmful factors

If a utensil is made from biodegradable materials like paper or card, then it is environmentally friendly, but it lacks strength and durability

Engineering Contradiction:
ImprovebiodegradabilityVSAvoidstructural strength
Core Design Contradiction:
Object-generated harmful factorsVSStrength

Solution Approach 1:

Dividing the utensil into separate handle and head portions allows for optimized structural design in each segment, enabling biodegradable materials to achieve sufficient strength through careful geometric configuration and interlocking mechanisms

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

Using composite construction with interlocking biodegradable parts creates a utensil that maintains strength comparable to plastic while being fully biodegradable

Inventive Principle:
Principle #40Composite materials

3Volume of moving object

If a utensil is packaged in a compact manner, then packaging efficiency is improved, but assembly complexity increases

Engineering Contradiction:
Improvepackaging volumeVSAvoidassembly complexity
Core Design Contradiction:
Volume of moving objectVSDevice complexity

Solution Approach 1:

The handle and head parts are designed to nest within each other during packaging, achieving compact storage. The parts feature complementary geometric shapes that allow easy identification and straightforward assembly without complex mechanisms

Inventive Principle:
Principle #7Nested doll (Nesting)

Solution Approach 2:

The segmented design with distinct handle and head portions enables compact packaging while maintaining simple assembly through intuitive interlocking features

Inventive Principle:
Principle #1Segmentation

4Productivity

If a utensil is designed as two separate parts, then packaging efficiency improves, but the assembly process becomes more complex

Engineering Contradiction:
Improvepackaging efficiencyVSAvoidassembly process
Core Design Contradiction:
ProductivityVSDevice complexity

Solution Approach 1:

The two parts are designed to nest within each other for compact packaging, while their geometric features provide intuitive alignment and simple snap-fit assembly, resolving the contradiction between packaging efficiency and assembly complexity

Inventive Principle:
Principle #7Nested doll (Nesting)

Data Source

PatentEP4079197B1A constructable utensil
Publication Date: 2025.03.05 TUCKER HARVEY
  • EP4079197B1 patent drawingFigure 1~2
  • EP4079197B1 patent drawingFigure 3~5
  • EP4079197B1 patent drawingFigure 6~8

AI summary

A constructible utensil (1) has a handle (2) and a head (3) of biodegradable wood material. The handle has a slot (17) at its distal end forming a pair of jaws (15, 16) with converge towards a mouth at the distal end of the handle. The head (3) has a slot (34) at its proximal end forming a pair of jaws (32, 33) and these also converge in a similar manner. The handle is planar and has a central through hole (20), and the head has a planar part with a central through hole (35). The user grasps the handle and the head by different hands, mutually rotates the handle and the head about their longitudinal axes, pushes the handle and the head together with the jaws of each engaging opposed surfaces of the other and continues this action until the jaws snap fit in the holes (20, 35) of the other part. The assembled utensil is robust due to the strength of engagement of the handle and the head and that it extends in mutually perpendicular directions.