Chin Guard Guide Mechanism for Low-Drag Helmet Opening
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Solution Overview
Problem
Conventional chin guard pivoting mechanisms cause the chin guard to be disposed far away from the helmet when in the open position, leading to increased drag due to a concentrated center of mass at the front.
Innovation Solution
A chin guard pivoting mechanism with two connection portions and guide portions, where at least one guide portion is extended from the front to the rear, allowing the chin guard to pivot closer to the helmet body when open, thereby minimizing drag.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the chin guard pivots to the open position using a conventional mechanism, then the chin guard can be opened for comfort and visibility, but the chin guard is disposed far away from the helmet body causing increased drag and concentrated center of mass
Solution Approach 1:
The guide portions extend from the front to the rear of the helmet body, adding a longitudinal dimension to the chin guard's movement path. This dimensional change allows the chin guard to pivot along an arc that keeps it closer to the helmet body, reducing the horizontal displacement that causes drag while maintaining the opening function.
Solution Approach 2:
The guide portions are configured in an arc shape that follows a curved path from the front to the rear of the helmet body. This curvature guides the connection portions to move along a controlled arc, ensuring the chin guard stays closer to the helmet body during rotation and minimizing the concentration of mass at the front, thereby reducing drag.
2Ease of operation
If the chin guard pivots to the open position using a conventional mechanism, then the chin guard can be opened for comfort and visibility, but the center of mass is concentrated at the front side
Solution Approach 1:
By extending the guide portions from front to rear, the invention redistributes the chin guard's movement along the longitudinal axis of the helmet. This dimensional redistribution prevents the center of mass from concentrating at the front, creating a more balanced mass distribution that improves helmet stability while maintaining opening functionality.
Solution Approach 2:
The arc-shaped guide portions create a curved movement path that distributes the chin guard's position more evenly during rotation. This curved path prevents abrupt concentration of mass at the front, maintaining a more balanced center of mass distribution throughout the opening motion, thereby improving overall helmet stability.
Data Source
AI summary
The present disclosure relates to a chin guard pivoting mechanism. The chin guard pivoting mechanism according to the present disclosure is provided in a helmet including a helmet body (10) and a chin guard (20) pivotally coupled to the helmet body (10), wherein while two connectors (100, 200) provided in the chin guard (20) move along two guide parts (300, 400), the chin guard (20) is pivoted, and at least one (400) of the two guide parts (300, 400) extends from the front to the rear.