Helmet Pad Inclined-Surface Coupling for Emergency Removal

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Solution Overview

Problem

Existing helmets with pads inside the shell are difficult to remove in emergency situations, leading to secondary injuries during forced separation.

Innovation Solution

A helmet design featuring a coupling member with a male and female component, utilizing inclined surfaces that allow easy separation by applying a specific directional force, facilitated by a movement prevention member to stabilize the pad within the helmet.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Stability of the object's composition

If the pad is closely attached to the wearer's head to provide stable fit, then the wearing stability is improved, but the helmet becomes difficult to remove in emergency situations

Engineering Contradiction:
Improvewearing stabilityVSAvoidease of removal
Core Design Contradiction:
Stability of the object's compositionVSEase of operation

Solution Approach 1:

The coupling between the pad and helmet body is segmented into a male coupling member (protrusion) and a female coupling member (recess), allowing the pad to be stably fixed during normal wear while enabling quick separation through a releasing operation that disengages these segmented coupling elements

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The coupling member incorporates an inclined surface that transforms the removal operation into a dynamic separation process: applying force in a specific direction causes the male coupling member to slide along the inclined surface, converting a simple pull into an automatic separation mechanism that overcomes the stable coupling

Inventive Principle:
Principle #15Dynamics

2Stability of the object's composition

If the pad is firmly coupled to the helmet body, then the pad stability is improved, but secondary injuries occur during forced separation in emergencies

Engineering Contradiction:
Improvepad stabilityVSAvoidsecondary injuries
Core Design Contradiction:
Stability of the object's compositionVSObject-affected harmful factors

Solution Approach 1:

The design extracts the pad from permanent attachment to the helmet body, allowing it to be stably coupled during normal use but easily removed in emergencies by disengaging the male and female coupling members, thereby preventing the pad from causing secondary injuries during forced separation

Inventive Principle:
Principle #2Taking out (Extraction)

Solution Approach 2:

The inclined surface on the coupling member creates a dynamic release mechanism where applying force in a specific direction automatically separates the male and female coupling members, enabling painless and quick removal of the pad without forcing it off the wearer's head

Inventive Principle:
Principle #15Dynamics

Data Source

PatentUS12402683B2Helmet
Publication Date: 2025.09.02 HONG JIN CROWN
  • US12402683B2 patent drawing
  • US12402683B2 patent drawing
  • US12402683B2 patent drawing

AI summary

The helmet according to an embodiment of the present invention includes a helmet body; a pad coupled to the inside of the helmet body, and a coupling member that separably couples the helmet body and the pad, wherein the coupling member may include a male coupling member disposed in one of either the inside of the helmet body or the pad, and a female coupling member disposed in the other of either the inside of the helmet body or the pad and into which the male coupling member is inserted and fixed, wherein the male coupling member has a first inclined surface at a portion inserted and fixed into the female coupling member, and the female coupling member has a second inclined surface corresponding to the first inclined surface, and when an external force is applied to the pad in a first direction so that the male coupling member is separated from the female coupling member in a state in which the male coupling member and the female coupling member are coupled, the first inclined surface moves along the second inclined surface, and the pad is separated from the helmet body.