Collapsible Cup with Rigid Plate Base for Stability and Portability

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Solution Overview

Problem

Collapsible mugs face challenges such as difficulty in manufacturing, narrow bases leading to instability, poor collapsibility, hygienic concerns during expansion, unsightly design, lack of handles for easy gripping, and issues with maintaining water tightness.

Innovation Solution

A collapsible container design featuring a flexible body with multiple tiers, living hinges, and a rigid plate embedded in the base for stability, along with a handle and elastomeric grip for easy gripping, and a selectively closable lid for water tightness, manufactured using a method that injects flexible material around a rigid cladding and handle preform.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If collapsible mugs are made with multiple tiers to enable collapsing, then collapsibility is improved, but the base becomes narrow and unstable

Engineering Contradiction:
ImprovecollapsibilityVSAvoidbase stability
Core Design Contradiction:
Adaptability or versatilityVSStability of the object's composition

Solution Approach 1:

The patent combines flexible material for the collapsible body with a rigid plate material for the base, creating a composite structure that enables both collapsibility and base stability. The rigid plate is embedded in the bottom tier to provide structural support while the rest of the body remains flexible for collapsing.

Inventive Principle:
Principle #40Composite materials

2Volume of moving object

If the base is made narrow to fit in small spaces, then portability is improved, but stability deteriorates

Engineering Contradiction:
Improvecompact sizeVSAvoidanti-knock over stability
Core Design Contradiction:
Volume of moving objectVSStability of the object's composition

Solution Approach 1:

The patent uses a rigid plate embedded in the bottom tier to create a stable base that can be narrow for portability yet rigid enough to prevent knocking over. The rigid material provides the necessary structural support in a compact form.

Inventive Principle:
Principle #40Composite materials

3Adaptability or versatility

If flexible material is used for the body to enable collapsing, then collapsibility is improved, but resistance to lateral deformation deteriorates

Engineering Contradiction:
ImprovecollapsibilityVSAvoidresistance to lateral forces
Core Design Contradiction:
Adaptability or versatilityVSStrength

Solution Approach 1:

The patent combines flexible material for the collapsible body sections with rigid material for the base and rim, creating a composite structure where each material performs its optimal function. The flexible portions enable collapsing while the rigid portions provide lateral strength.

Inventive Principle:
Principle #40Composite materials

4Stability of the object's composition

If the mug is made with a rigid base for stability, then stability is improved, but collapsibility deteriorates

Engineering Contradiction:
Improvebase stabilityVSAvoidcollapsibility
Core Design Contradiction:
Stability of the object's compositionVSAdaptability or versatility

Solution Approach 1:

The patent divides the mug structure into segmented tiers (top tier, middle tier, bottom tier) with the rigid plate embedded only in the bottom tier. This segmentation allows the base to be rigid for stability while the upper tiers remain flexible for collapsing.

Inventive Principle:
Principle #1Segmentation

5Device complexity

If collapsible mugs are made without handles for simplicity, then device complexity is reduced, but ease of operation deteriorates

Engineering Contradiction:
Improvestructural simplicityVSAvoidgripability
Core Design Contradiction:
Device complexityVSEase of operation

Solution Approach 1:

The rigid cladding that provides structural support and rigidity to the top tier also serves as a gripping surface, eliminating the need for a separate handle structure. This multi-functional design maintains simplicity while improving ease of operation.

Inventive Principle:
Principle #6Universality (Multi-functionality)

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 enhances manufacturability, stability, collapsibility, hygiene, aesthetics, and ease of use while ensuring the container remains self-supporting and watertight in both expanded and collapsed states.

Implementation Method 1

a rigid plate embedded in the bottom tier that makes the otherwise flexible base rigid

Methodology Applied
Scientific EffectRigidity:

Implementation Method 2

a plurality of living hinges including a first living hinge between the top tier and the middle tier and a second living hinge between the middle tier and the bottom tier

Methodology Applied
Scientific EffectFlexibility:

Implementation Method 3

The top tier may have an elastomeric grip around the rigid cladding

Methodology Applied
Scientific EffectFriction: Friction

Data Source

PatentUS11026527B2Collapsible cup
Publication Date: 2021.06.08 TSUI SAM TUNG
  • US11026527B2 patent drawing
  • US11026527B2 patent drawing
  • US11026527B2 patent drawing

AI summary

A collapsible container, particularly a cup or mug having a flexible body having a top tier, middle tier and a bottom tier is disclosed. The bottom tier has a base. The container has a first living hinge between the top and middle tiers and a second living hinge between the middle and bottom tiers. A rigid, preferably metal, plate is at least partially embedded in the bottom tier that makes the otherwise flexible base rigid. The container can have a rigid metal cladding around the top tier and a handle made of flexible material. The collapsible container may be made by injection molding.