Convertible Hood Hat With Flexible Brim for Foldable Sun Protection

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Solution Overview

Problem

Existing headwear solutions, such as handkerchiefs and hats, are inconvenient due to separate purchase and storage requirements, lack of integrated sunshade functionality, and limited sun-blocking capabilities, and often require complex folding and storage.

Innovation Solution

A hood hat with a flexible brim that can be worn in various directions, featuring a cloth member with a sewn-in hat brim and a detachable face cover, allowing for multiple wearing styles and sun protection, using soft materials and internal reinforcing elements to maintain shape and facilitate easy folding.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Object-affected harmful factors

If a handkerchief is equipped with a sunshade plate, then sunshade functionality is provided, but storage convenience deteriorates due to the rigid plate structure

Engineering Contradiction:
Improvesunshade functionalityVSAvoidstorage convenience
Core Design Contradiction:
Object-affected harmful factorsVSEase of operation

Solution Approach 1:

The patent replaces the rigid plate structure with a flexible thin film structure. The handkerchief itself is made of a flexible material that can be folded and stored easily, while still providing sunshade functionality when worn. This resolves the contradiction by maintaining sun protection capability while dramatically improving portability and storage convenience through the flexible nature of the material.

Inventive Principle:
Principle #30Flexible shells and thin films

Solution Approach 2:

The patent merges the handkerchief and hat functions into a single integrated product. The handkerchief is designed with a specific structure that allows it to be worn as a hat with sunshade capability, eliminating the need for separate items and improving both functionality and storage efficiency.

Inventive Principle:
Principle #5Merging (Combining)

2Object-affected harmful factors

If the sunshade plate protrudes beyond the folded handkerchief, then sunshade effect is improved, but structural flexibility deteriorates

Engineering Contradiction:
Improvesunshade effectVSAvoidstructural flexibility
Core Design Contradiction:
Object-affected harmful factorsVSStability of the object's composition

Solution Approach 1:

The patent uses the flexible handkerchief material itself to create the sunshade structure, eliminating the need for a rigid protruding plate. The handkerchief can be folded and arranged to provide sunshade coverage while maintaining overall structural flexibility and ease of manipulation.

Inventive Principle:
Principle #30Flexible shells and thin films

3Adaptability or versatility

If a cylindrical band is coupled to a triangular handkerchief, then hood functionality is provided, but storage convenience deteriorates

Engineering Contradiction:
Improvehood functionalityVSAvoidstorage convenience
Core Design Contradiction:
Adaptability or versatilityVSEase of operation

Solution Approach 1:

The patent merges the hood and handkerchief into a single integrated structure. The handkerchief is designed with ear flaps and a crown portion that can be worn as a hood, eliminating the need for a separate cylindrical band attachment and improving storage convenience by reducing the number of components.

Inventive Principle:
Principle #5Merging (Combining)

4Stability of the object's composition

If the hat brim is made with wire for shape maintenance, then shape stability is improved, but ease of cleaning deteriorates

Engineering Contradiction:
Improveshape stabilityVSAvoidease of cleaning
Core Design Contradiction:
Stability of the object's compositionVSEase of repair

Solution Approach 1:

The patent uses the flexible handkerchief material to form the hat brim, eliminating the need for wire insertion. The material's inherent flexibility allows it to maintain its shape when worn while remaining fully washable and easy to clean, as there are no rigid components to protect during laundering.

Inventive Principle:
Principle #30Flexible shells and thin films

5Ease of operation

If the handkerchief is folded vertically, then wearing simplicity is improved, but sunshade effectiveness deteriorates

Engineering Contradiction:
Improvewearing simplicityVSAvoidsunshade effectiveness
Core Design Contradiction:
Ease of operationVSObject-affected harmful factors

Solution Approach 1:

The patent employs asymmetric folding patterns and结构设计 that allow the handkerchief to be worn in multiple configurations. The ear flaps and crown portion can be arranged to provide both vertical and horizontal sunshade coverage, breaking the limitation of simple vertical folding and improving overall sun protection effectiveness.

Inventive Principle:
Principle #4Asymmetry

Data Source

PatentEP4640098A1Convertible headwear
Publication Date: 2025.10.29 GO DOYOUNG
  • EP4640098A1 patent drawingFigure 1
  • EP4640098A1 patent drawingFigure 2
  • EP4640098A1 patent drawingFigure 3

AI summary

The present invention provides a hood hat enabling various direction wearing, which provides a variety of wearing variations with one hood hat, and thus allows users to utilize the hood hat to match with their taste, and a method for direction wearing using the hood hat. The present invention discloses a hood hat enabling various direction wearing, comprising: a hood hat including a cloth member formed to wrap around a head and a forehead, and a hat brim located at the center of a diagonal line of the cloth member and formed to block sunlight; and a face cover that is formed to hide the front face while being attached and detached to the hood hat by an attachment means, wherein based on the hat brim, the hood hat is worn so that the hat brim is changed and located to the outside or inside of the cloth member, thereby enabling direction wearing of various styles of hood caps.