Helmet Sub-Visor Mechanism for Stable Light Blocking
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Solution Overview
Problem
Existing head protection gear visors are inconvenient to manipulate, prone to damage, and lack stability in their positioning and movement mechanisms.
Innovation Solution
A head protection gear design featuring a sub-visor that is movably coupled to a supporter via a mover, with a moving groove and guider system, allowing easy adjustment and stable positioning through an adjuster mechanism.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If the additional visor is located inside the visor for blocking external air, then the visor structure is compact, but the wearer must pre-manipulate the external air-blocking visor to access the additional visor, reducing ease of operation
Solution Approach 1:
The additional visor is nested inside the external air-blocking visor, with both visors rotatably coupled to the helmet shell at different rotation centers. The additional visor is positioned within the space defined by the external visor, creating a compact nested structure that maintains ease of independent manipulation through separate rotation centers.
2Ease of operation
If the sun visor is disposed in front of pre-equipped safety glasses, then the sun visor is easily accessible, but it is prone to damage by external foreign substances during driving
Solution Approach 1:
The additional visor (sun visor) is nested inside the external air-blocking visor, positioning it behind the protective barrier of the external visor. This nested arrangement protects the additional visor from direct exposure to external foreign substances while maintaining functionality through independent rotation capability.
3Ease of manufacture
If the sun visor is coupled to the helmet by magnetic force, then the coupling is simple, but the stability of coupling is reduced compared to mechanical coupling
Solution Approach 1:
The patent replaces magnetic coupling with a mechanical rotation system. The additional visor is rotatably coupled to the helmet shell through a rotation center, providing stable mechanical coupling that maintains reliability while enabling easy manipulation through rotational movement rather than magnetic attraction.
4Device complexity
If the shield and sun visor are coupled to the same member, then the structure is simplified, but the supporting member is prone to damage due to repeated rotation
Solution Approach 1:
The patent segments the coupling system by providing separate rotation centers: the shield rotates about a first rotation center and the additional visor rotates about a second rotation center. This segmentation distributes the mechanical stress and wear from repeated rotations across separate members, improving durability while maintaining structural simplicity through the shared helmet shell attachment.
5Ease of operation
If the sun visor is moved by direct grasping and pressing, then the manipulation is simple, but there is difficulty in excluding the possibility that the shield may move together against the wearer's intention
Solution Approach 1:
The patent extracts the manipulation function to a separate adjustment mechanism that independently controls the additional visor's position. This mechanism allows the wearer to manipulate only the additional visor without affecting the shield position, ensuring precise positioning control and preventing unintended movement of other components.
Data Source
AI summary
Head protection gear is disclosed. The head protection gear according to one aspect of the present invention comprises: an outer frame having a frame opening that is open at the front side thereof; a sub-visor which partially covers the front side of the outer frame and which is movably coupled to the outer frame; support members, each being coupled to the outer frame and the sub-visor so as to movably support the sub-visor; and a movable member which is movably coupled to the support member, and which is coupled to the sub-visor so as to be movable together with the sub-visor, wherein the movable member can move between a first position at which the sub-visor opens the frame opening, and a second position at which the sub-visor at least partially covers the frame opening.