Helmet Chin Guard Support Mechanism with Annular Surfaces
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional helmets with chin guard support mechanisms have complex structures, leading to operational difficulties and increased bulk, resulting in a larger widthwise size, with unnecessary linear movements during pivot operations.
Innovation Solution
A helmet design featuring simplified chin guard support mechanisms with annular convex or concave surfaces that follow each other, allowing smooth operation and preventing unnecessary forward and backward movements, while a shield plate's rise is controlled by stopper portions to maintain optimal angles.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If conventional chin guard support mechanisms with multiple guide holes and connection portions are used, then the chin guard can be raised and lowered, but the structure becomes complex and the widthwise size increases
Solution Approach 1:
The patent combines multiple guide holes and connection portions into a single integrated pivot axis. The chin guard support mechanism uses one pivot axis that directly connects the chin guard to the helmet body, eliminating the need for separate first and second guide holes and their corresponding connection portions. This merging of components simplifies the overall structure while maintaining the raising and lowering functionality.
Solution Approach 2:
The patent extracts and removes the unnecessary guide holes and connection portions from the conventional mechanism. By taking out the first and second longitudinal guide holes and their associated connection portions, the design eliminates redundant components that contributed to structural complexity and widthwise size without compromising the essential pivot operation.
2Ease of operation
If conventional chin guard support mechanisms with multiple guide holes and connection portions are used, then the chin guard can be raised and lowered, but the widthwise size of the helmet increases
Solution Approach 1:
The patent merges multiple spatially distributed components (first guide hole, second guide hole, first connection portion, second connection portion) into a single compact pivot axis location. This consolidation reduces the widthwise space required for the chin guard support mechanism, thereby reducing the overall widthwise size of the helmet while preserving the raising and lowering operation.
Solution Approach 2:
The patent removes the extraneous guide holes and connection portions that extended the widthwise dimensions of the helmet. By extracting these unnecessary components, the design achieves a more compact widthwise profile without eliminating the essential functional capability of raising and lowering the chin guard.
3Adaptability or versatility
If conventional chin guard support mechanisms are used, then the chin guard can move between positions, but unnecessary linear forward and backward movements occur during pivoting
Solution Approach 1:
The patent extracts and eliminates the guide holes that caused unnecessary linear movements. By removing the first and second longitudinal guide holes that constrained the connection portions to move linearly, the design allows for pure rotational pivoting motion without the interfering forward and backward linear movements, thereby achieving smoother operation.
Solution Approach 2:
Instead of using guide holes to constrain linear movement, the patent inverts the approach by using a pivot axis that directly enables rotational movement. This inversion from linear constraint to rotational freedom eliminates the unnecessary forward and backward movements during chin guard pivoting.
Data Source
AI summary
A chin guard support mechanism includes first and second fixed-side members, and a moving-side member fixed to the chin guard. When the chin guard pivots forward from a down position in a rising direction, an annular following surface provided on the moving-side member pivots forward while following an annular followed surface provided on the second fixed-side member to make the chin guard rise while moving forward. It is possible to provide a helmet that allows the chin guard support mechanism capable of relatively excellently raising/lowering the chin guard to have a simple structure, allows to operate the chin guard support mechanism smoothly, obviates the necessity of making the structure in a region including an end of the chin guard including the chin guard support mechanism and a vicinity thereof bulky, and obviates the necessity of making the widthwise size of the helmet large.