Garment hanger with a rotatable hook

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Solution Overview

Problem

Cardboard hangers are structurally weak and prone to damage, especially in moist environments, and plastic hangers are difficult to recycle, while both types are not suitable for online purchases due to damage and recycling inefficiencies.

Innovation Solution

A garment hanger design comprising a cardboard body with a plastic suspension member, featuring a rotatable hook and retainer system with a rotation limiter, allowing easy separation for recycling and protection during transportation.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of manufacture

If cardboard hangers are used, then they are easier to recycle than plastic hangers, but they are structurally weaker and more prone to damage especially in moist environments

Engineering Contradiction:

ImproverecyclabilityVSAvoidstructural strength

Core Design Contradiction:

Ease of manufactureVSStrength

Solution Approach 1:

The hanger combines cardboard body with a plastic suspension member, creating a composite structure that leverages the recyclability of cardboard while incorporating the strength and moisture resistance of plastic for the critical suspension components

Inventive Principle:

Principle #40Composite materials

Solution Approach 2:

The hanger is divided into separate components (cardboard body and plastic suspension member) that can be easily separated for recycling, with the suspension member being a distinct replaceable part

Inventive Principle:

Principle #1Segmentation

2Strength

If plastic hangers are used, then they have greater structural strength, but they are difficult to recycle due to multiple polymer materials

Engineering Contradiction:

Improvestructural strengthVSAvoidrecyclability

Core Design Contradiction:

StrengthVSEase of manufacture

Solution Approach 1:

The hanger is divided into separate components (cardboard body and plastic suspension member) that can be easily separated for recycling, with the suspension member being a distinct replaceable part

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

Different materials are used in different parts of the hanger - cardboard for the body where strength is less critical and plastic for the suspension member where strength and moisture resistance are essential

Inventive Principle:

Principle #3Local quality

3Device complexity

If traditional hanger hooks are used, then they are simple in design, but they are prone to damage during transportation especially for online purchases

Engineering Contradiction:

Improvedesign simplicityVSAvoiddamage resistance

Core Design Contradiction:

Device complexityVSReliability

Solution Approach 1:

The suspension member can rotate relative to the cardboard body through a controlled rotation mechanism, allowing it to adapt its position and protect itself from damage during handling and transportation

Inventive Principle:

Principle #15Dynamics

Solution Approach 2:

The rotation limiter prevents excessive rotation that could cause damage, while the rotation controller allows controlled movement to position the hook in a protected state during transportation

Inventive Principle:

Principle #9Preliminary anti-action

Data Source

PatentUS20250351984A1Garment hanger with a rotatable hook

Publication Date: 2025.11.20 MAINETTI (UK) LTD

AI summary

A garment hanger in two parts of disclosed. There is a body for supporting a garment thereon which is made from a sheet material such as cardboard and has a non-circular aperture extending therethrough. There is also a suspension member which includes three parts. Firstly, a hook is for hanging the hanger from a rail. Secondly, a retainer sits in the non-circular aperture and it releasably and rotatably retains engagement between the suspension member and the body. The retainer also has an axle and feet. Finally, there is a rotation limiter having an edge engager for engaging an edge of the sheet material to limit rotation of the suspension member relative to the body.