Motorcycle Helmet Visor Stops for Adjustable Sun Protection
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Solution Overview
Problem
Existing protective helmets for motorcyclists with sun visors often fail to adequately cover the eyes or contact the nose/face due to a lack of adjustability in the visor's lower position, which is not suited to individual facial features.
Innovation Solution
The helmet incorporates manually positionable stops on the sides of the front opening that limit the rotation of the sun visor, allowing it to be set at different heights, ensuring proper solar protection without nose or face contact.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the sun visor is fixed in a single lower position, then the structure is simple, but it cannot adapt to different users' facial features causing either insufficient eye coverage or contact with nose/face
Solution Approach 1:
The patent applies the dynamics principle by transforming the fixed visor position into an adjustable system. The visor can be positioned at multiple discrete heights (first, second, and third positions) through a rotary mechanism with corresponding stops. This allows the same visor structure to adapt to different users' facial features while maintaining mechanical simplicity through discrete positioning rather than continuous adjustment.
Solution Approach 2:
The patent segments the visor's lower position into multiple discrete levels (first, second, and third positions) rather than allowing continuous movement. Each position is defined by a specific stop mechanism, dividing the adjustment range into distinct segments. This segmentation provides adaptability to different facial features while keeping the mechanism simple and easy to operate.
2Object-affected harmful factors
If the sun visor is positioned lower to ensure eye coverage, then eye protection is improved, but it may contact the user's nose or face causing discomfort
Solution Approach 1:
The dynamics principle is applied by enabling the visor to move between multiple positioned states rather than being fixed. Users can dynamically adjust the visor height to achieve optimal positioning that provides sufficient eye coverage without contacting the nose or face, depending on their specific facial features and comfort requirements.
Solution Approach 2:
The patent changes the positional parameter of the visor by introducing multiple discrete height levels (first, second, and third positions). This parameter change allows users to select the appropriate visor height to balance eye protection effectiveness with comfort, preventing unwanted contact with the nose or face while maintaining adequate solar filtration.
3Ease of operation
If the sun visor is positioned higher to avoid contacting the face, then comfort is improved, but eye coverage becomes insufficient
Solution Approach 1:
The dynamics principle enables the visor to be adjusted to multiple positions, allowing users to find the optimal balance between comfort and eye coverage. Rather than being constrained to a single high or low position, users can select from first, second, or third positions depending on their facial features and comfort requirements while maintaining adequate eye protection.
Solution Approach 2:
By changing the visor's vertical position parameter to include multiple discrete levels, the patent allows users to optimize the balance between comfort and eye coverage. The adjustable parameter enables selecting a position that provides sufficient eye protection without causing discomfort from facial contact, adapting to individual user needs.
Data Source
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AI summary
The present invention relates to a protective helmet for motorcyclists with a sun visor, with a helmet body provided with a front opening, a sun visor, and a rotary operating mechanism for rotatably operating the visor with respect to a horizontal axis. The visor rotates between an inoperative upper position, in which said visor is arranged inside the helmet body, and an operative lower position, in which said visor is arranged in front of the helmet user's eyes.