Inward-Flipping Helmet Goggles for Balance and Clear Sight

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Solution Overview

Problem

Existing welding protection helmets with outwards flipping goggles suffer from instability due to a forward-moving gravity center, increased weight, reduced sight, and susceptibility to contamination, which limits their usability and comfort.

Innovation Solution

A helmet with an inwards flipping goggle mechanism that uses a link mechanism to adjust the goggle's up-and-down movement and rotation within the helmet, maintaining a stable gravity center and preventing contamination, while allowing for a wide, transparent field of view and simplified structure.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If the goggle is designed to flip outwards, then the goggle can be flipped for observation, but the gravity center of the helmet moves forwards and the helmet becomes heavier

Engineering Contradiction:

Improvegoggle flipping capabilityVSAvoidhelmet weight

Core Design Contradiction:

Ease of operationVSWeight of moving object

Solution Approach 1:

Instead of flipping the goggle outwards as in conventional designs, this patent inverts the flipping direction to inwards, within the helmet body. The goggle rotates from a forward position to a retracted position inside the helmet, eliminating the need for additional external mounting space and preventing the gravity center from shifting forward, thus avoiding increased weight and improved balance.

Inventive Principle:

Principle #13The other way round (Inversion)

2Ease of operation

If the goggle is designed to flip outwards, then the goggle can be flipped for observation, but the sight becomes narrower

Engineering Contradiction:

Improvegoggle flipping capabilityVSAvoidfield of view

Core Design Contradiction:

Ease of operationVSArea of stationary object

Solution Approach 1:

The goggle flips inwards within the helmet body rather than outwards, allowing the front protection lens to maintain its original large size and position. This inverted flipping mechanism ensures that the field of view is not restricted by the flipping motion, and the operator can observe the workpiece clearly both when the goggle is in the forward position and when flipped inwards.

Inventive Principle:

Principle #13The other way round (Inversion)

3Ease of operation

If the goggle is designed to flip outwards, then the goggle can be flipped for observation, but the goggle is easily contaminated by welding slag and grinding dust

Engineering Contradiction:

Improvegoggle flipping capabilityVSAvoidcontamination

Core Design Contradiction:

Ease of operationVSObject-affected harmful factors

Solution Approach 1:

The goggle flips inwards within the enclosed helmet body space, away from the external welding and grinding environment. This inverted flipping direction protects the goggle lens from direct exposure to welding slag, grinding dust, and other harmful factors, reducing contamination and the need for frequent cleaning or replacement.

Inventive Principle:

Principle #13The other way round (Inversion)

4Ease of operation

If the goggle is designed to flip outwards, then the goggle can be flipped for observation, but the structure becomes more complex

Engineering Contradiction:

Improvegoggle flipping capabilityVSAvoidhelmet structure

Core Design Contradiction:

Ease of operationVSDevice complexity

Solution Approach 1:

The goggle flipping mechanism is integrated into the existing helmet structure, combining the goggle mounting, flipping hinge, and support structure into a unified design. The link mechanism uses simple connecting shafts and racks that are incorporated into the helmet body, avoiding the need for separate external mounting brackets and complex external linkage systems, thus simplifying the overall structure.

Inventive Principle:

Principle #5Merging (Combining)

5Ease of operation

If the goggle is positioned far from the eyes, then the goggle can be flipped, but the field of view is reduced

Engineering Contradiction:

Improvegoggle flipping capabilityVSAvoidfield of view

Core Design Contradiction:

Ease of operationVSArea of stationary object

Solution Approach 1:

The goggle flips inwards to a position close to the operator's eyes within the helmet body, rather than being positioned far forward to enable flipping. This inverted flipping mechanism allows the goggle to maintain a close proximity to the eyes during operation, ensuring a wide field of view while still providing the flipping capability for observation during slag cleaning and grinding.

Inventive Principle:

Principle #13The other way round (Inversion)

Data Source

PatentUS11324632B2Helmet with inwards flipping type goggle

Publication Date: 2022.05.10 ANHUI HENGYU OPTICAL ELECTRONICS CO LTD

AI summary

The present invention discloses a helmet with an inwards flipping type goggle, which includes a helmet body, a goggle, a front protection lens and a link mechanism; the front protection lens is fixed to the front side of the helmet body, the goggle is fixed to the link mechanism, the link mechanism is capable of adjusting the goggle to move up and down and to be rotatably connected to the two sides of the helmet body, and the goggle are located in the helmet body. The present invention has the following beneficial effects: by adopting the inwards flipping type, the goggle are prevented from being easily contaminated by welding splash, grinding splash and dust when the goggle are upwards flipped outside; the defects that the gravity center of the entire helmet moves forwards and the helmet is heavy are avoided; the goggle can be upwards flipped inside the helmet, the sight is not affected under the situation that the helmet is not taken off, and it is applicable to wider occasions, is more flexible and is more convenient to operate.