Folded Rim Hat Design for Thermal Insulation

Resolve Bottlenecks,
Find Innovative SolutionsGenerate Solutions

Solution Overview

Problem

Existing head coverings fail to effectively retain heat and protect the forehead, ears, and neck from rain, snow, wind, and cold while maintaining a stylish and functional design.

Innovation Solution

A hat design featuring a cylindrical wall with a stitched inward top, a folded and fastened rim, and multiple layers of fabric to create a triangular structure that covers the forehead, ears, and neck, providing thermal insulation and protection from elements.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If a traditional hat with circular top on cylindrical wall is used, then the structure is simple, but it fails to effectively retain heat and protect the forehead, ears, and neck

Engineering Contradiction:

Improveprotection effectivenessVSAvoidhat structure complexity

Core Design Contradiction:

ReliabilityVSDevice complexity

Solution Approach 1:

The hat is divided into distinct functional segments: a circular top for crown coverage, a cylindrical wall for side protection, and a separately formed rim for forehead and ear protection. This segmentation allows each part to be optimized for its specific protective function while maintaining overall structural integrity.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The rim is created by folding the cylindrical wall outward and upward, adding a third dimensional element that extends the protective coverage to the forehead and ears. This dimensional transformation converts a simple cylindrical structure into a multi-layered protective shell.

Inventive Principle:

Principle #17Another dimension (Dimensionality change)

2Temperature

If multiple fabric layers are used to retain heat, then thermal insulation improves, but the hat becomes heavier and more complex

Engineering Contradiction:

Improveheat retentionVSAvoidhat weight

Core Design Contradiction:

TemperatureVSWeight of moving object

Solution Approach 1:

The hat utilizes multiple layers of flexible fabric material to create thermal insulation. The cylindrical wall and rim are constructed with folded fabric layers that trap air pockets, providing effective heat retention without requiring heavy or rigid insulating materials.

Inventive Principle:

Principle #30Flexible shells and thin films

3Area of stationary object

If the rim is folded outward and upward to cover forehead and ears, then protection coverage increases, but the manufacturing complexity increases

Engineering Contradiction:

Improveprotection coverage areaVSAvoidmanufacturing ease

Core Design Contradiction:

Area of stationary objectVSEase of manufacture

Solution Approach 1:

The rim is pre-formed by folding the cylindrical wall outward and upward during the manufacturing process, creating the protective extension before final assembly. This preliminary shaping simplifies the overall construction by integrating the rim formation into the initial fabric manipulation rather than requiring separate attachment steps.

Inventive Principle:

Principle #10Preliminary action

Data Source

PatentEP2897480B1Head covering

Publication Date: 2019.04.10 PERTHOU PETER M

Figure 1~2
Figure 3~4
Figure 5~6

AI summary

A head covering or hat (10) includes a top (11) fastened to a cylindrical wall (12). The lower edge of the cylindrical wall is folded outwardly and upwardly to form a rim (12A) that is connected to a rear point (14) of the top.