Movable Ventilation Frame for Motorcycle Helmet Airflow Control
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Solution Overview
Problem
Existing motorcycle helmets with ventilation devices face user difficulty in quickly determining the optimal air circulation adjustment, particularly when transitioning between different riding positions.
Innovation Solution
A ventilation device with a frame that can be moved between two positions, one at the front and one at the top of the helmet, allowing air flow control in zones of maximum pressure, enabling easy adaptation to various riding positions and allowing single-handed adjustment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a ventilation device with adjustable door member is provided in the helmet, then air circulation can be controlled, but users have difficulty in quickly determining the optimal adjustment position
Solution Approach 1:
The frame is pre-configured with multiple predetermined positions (first position near front portion, second position near top portion) that correspond to optimal ventilation settings for different riding conditions. This eliminates the need for users to determine optimal adjustments independently, as the system has already prepared the best positions in advance.
Solution Approach 2:
The frame provides tactile feedback through distinct stop positions and audible feedback through clicks or snaps when the door member engages with the frame at predetermined positions. This feedback mechanism guides users to the correct adjustment positions without requiring complex knowledge of aerodynamics or ventilation optimization.
2Adaptability or versatility
If the ventilation device has multiple adjustment positions, then air flow can be optimized for different riding positions, but the device complexity increases
Solution Approach 1:
The ventilation device is segmented into discrete, predetermined positions rather than continuous adjustment. The frame includes specific engagement points (first position, second position) that divide the adjustment range into manageable segments, simplifying the overall structure while maintaining adaptability to different riding conditions.
Solution Approach 2:
The frame and door member are designed as movable components that can transition between predetermined positions. This dynamic design allows the ventilation device to adapt to different riding positions without requiring a completely different structure for each position, maintaining simplicity through motion rather than complexity through multiplication.
3Productivity
If the frame is made movable between front and top positions, then air flow control is improved for different head positions, but the mechanism becomes more complex
Solution Approach 1:
The frame movement is segmented into two primary positions (front portion and top portion) rather than allowing continuous or multi-directional movement. This segmentation simplifies the mechanism by defining specific stop points and engagement zones, reducing the complexity of the movement system while maintaining effectiveness for different head positions.
Solution Approach 2:
The movable frame serves multiple functions: it positions the door member relative to ventilation openings, adjusts air flow direction, and adapts to different riding positions. This multi-functionality reduces the need for separate mechanisms for each function, simplifying the overall device complexity while improving air flow control efficiency.
Data Source
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AI summary
A protection helmet (1) comprising a cap (2), at least one ventilation opening (3) being present in a top portion of the cap (2), and a ventilation device (4) located in the region of said at least one ventilation opening (3), said ventilation device (4) comprising a frame (6) and a door member (7) located on said frame (6) and adapted to allow air transit through said at least one ventilation opening (3). The frame (6) is alternatively movable between at least one first ventilation operating position (5a) in the region of a front portion (2a) of the cap (2) and a second ventilation operating position (5b) in the region of a top portion (2b) of the cap (2), and the door member (7) is movable with respect to the frame (6), in the region of said first and second ventilation operating positions (5a, 5b), between one closing position and at least one opening position.