Multi-Layer Hood Structure for Independent Inner Hood Constriction

Solution Overview

Problem

Existing hooded garments with multiple hoods often suffer from the issue of inner hoods constricting the outer hood, leading to unwanted changes in shape and functionality, particularly in adverse weather conditions.

Innovation Solution

The design incorporates an inner hood with a constrictor mechanism that allows independent constriction without affecting the outer hood's shape, utilizing distinct bending stiffness values and connection leads to maintain the outer hood's integrity.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If the inner hood is constricted to enhance coziness and heat retention, then the wearer's comfort is improved, but the outer hood's shape and functionality are compromised

Engineering Contradiction:

Improvecoziness and heat retentionVSAvoidouter hood shape

Core Design Contradiction:

Ease of operationVSShape

Solution Approach 1:

The hood system is divided into two independent segments: an inner hood that can be constricted around the wearer's head and an outer hood that maintains its protective shape. The constrictor mechanism is applied only to the inner hood, allowing it to be segmented and adjusted independently without affecting the outer hood's structure.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

A lead or connection element acts as an intermediary between the inner and outer hoods. This intermediary allows the inner hood to be constricted while preventing the constriction forces from being transmitted to the outer hood, thus maintaining the outer hood's shape while still providing the benefits of inner hood constriction.

Inventive Principle:

Principle #24Intermediary (Mediator)

2Temperature

If the inner hood constrictor is activated, then heat retention is enhanced, but the outer hood's protective capabilities are compromised

Engineering Contradiction:

Improveheat retentionVSAvoidouter hood protective capabilities

Core Design Contradiction:

TemperatureVSReliability

Solution Approach 1:

The hood system is divided into two independent segments: an inner hood that can be constricted around the wearer's head and an outer hood that maintains its protective shape. The constrictor mechanism is applied only to the inner hood, allowing it to be segmented and adjusted independently without affecting the outer hood's structure.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

A lead or connection element acts as an intermediary between the inner and outer hoods. This intermediary allows the inner hood to be constricted while preventing the constriction forces from being transmitted to the outer hood, thus maintaining the outer hood's shape while still providing the benefits of inner hood constriction.

Inventive Principle:

Principle #24Intermediary (Mediator)

3Stability of the object's composition

If the inner hood and outer hood are connected, then structural stability is improved, but independent adjustment of the inner hood is restricted

Engineering Contradiction:

Improvestructural stabilityVSAvoidindependent adjustment capability

Core Design Contradiction:

Stability of the object's compositionVSAdaptability or versatility

Solution Approach 1:

The connection between the inner and outer hoods is made dynamic rather than rigid. The lead allows for relative movement and independent adjustment of the inner hood while maintaining structural connection. The outer hood remains stable in its overall position while the inner hood can be independently constricted and adjusted.

Inventive Principle:

Principle #15Dynamics

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 solution ensures the outer hood effectively directs weather elements away from the face while maintaining its shape and functionality, enhancing coziness and heat retention without compromising the outer hood's protective capabilities.

Implementation Method 1

The outer brim portion has a greater bending stiffness than the inner brim portion

Methodology Applied

Scientific EffectBending stiffness:

Implementation Method 2

The draw string is pullable to constrict the inner face opening

Methodology Applied

Scientific EffectMechanical force: Mechanical Force

Data Source

PatentEP4353109B1Multi-layered hood of a garment

Publication Date: 2026.02.18 AMER SPORTS CANADA INC

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Figure 3~6
Figure 7~10

AI summary

A hooded garment (20, 120, 220, 320, 420, 620) may include a body portion (22, 422, 622) having a neck opening, an outer hood (24, 424, 624) projecting from the neck opening and having an outer face opening (36, 436, 636), and an inner hood (26, 326, 426, 626) projecting from the neck opening within the outer hood (24, 424, 624). The inner hood (26, 326, 426, 626) has an inner face opening (46, 446, 646) facing in a forward direction. A lead (28, 428, 628) is located rearward the inner face opening (46, 446, 646) and extends from an exterior of the inner hood (26, 326, 426, 626) to an interior of the outer hood (24, 424, 624). A constrictor (32, 132, 232, 332, 432, 632) is connected to the inner hood (26, 326, 426, 626) to constrict the inner face opening (46, 446, 646) without constricting the outer face opening (36, 436, 636).