Helmet Visor Raising Mechanism With Elastic Pin Coupling
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Solution Overview
Problem
Existing motorcycle helmets with raising/lowering visor mechanisms are complex and costly to produce, and difficult for users to assemble and disassemble.
Innovation Solution
A helmet with a simplified raising/lowering mechanism using a base member, fastening pin, elastic countering member, and unlocking device that allows easy assembly and disassembly of the visor, featuring a seat for the pin and elastic countering members that provide reversible coupling with minimal resistance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a complex raising/lowering mechanism with multiple members is used to constrain the visor, then the visor can be securely attached and positioned, but the device complexity increases and manufacturing cost rises
Solution Approach 1:
The patent combines multiple functions into the base member: it provides the seat for the fastening pin, houses the elastic countering member, and integrates the unlocking device. This merging reduces the number of separate components while maintaining secure visor attachment through the pin-seat-coupling interface.
Solution Approach 2:
The elastic countering member automatically engages with the fastening pin when the visor is lowered, providing self-locking without requiring additional active components. The mechanism uses the natural elastic deformation and recovery of the countering member to maintain the locked state and enable easy unlocking.
2Reliability
If a raising/lowering mechanism with multiple cooperating members is implemented, then the visor can be constrained to the helmet, but the ease of manufacture decreases due to assembly difficulty
Solution Approach 1:
The mechanism is segmented into distinct functional elements: the base member with integrated components, the fastening pin attached to the visor, and the elastic countering member. This segmentation allows each component to be manufactured separately and assembled through simple insertion and engagement actions, reducing assembly complexity.
Solution Approach 2:
The fastening pin is extracted as a separate component that can be easily inserted into and removed from the base member's seat. This extraction approach allows the visor to be independently attached or detached without manipulating multiple interconnected parts, significantly simplifying the assembly and disassembly process.
3Ease of manufacture
If a simplified mechanism with fewer members is used, then the manufacturing cost decreases and assembly is easier, but the reliability of visor attachment may be compromised
Solution Approach 1:
The elastic countering member is positioned in advance within the base member to cushion and absorb the engagement forces when the fastening pin is inserted. This pre-positioned elastic element ensures reliable locking by automatically deforming to accommodate the pin and then recovering to secure it, maintaining attachment reliability while simplifying the overall mechanism.
Solution Approach 2:
The mechanism relies on changes in the elastic parameters of the countering member (deformation and recovery) to achieve reliable attachment. By utilizing the elastic properties of the material, the system maintains secure visor attachment through force-based engagement rather than complex mechanical interlocking, reducing component count while preserving reliability.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The mechanism allows for a structurally non-complex and economically viable solution that simplifies the assembly and disassembly of the visor, ensuring secure attachment and easy detachment with minimal force required.
Implementation Method 1
the base element comprises an unlocking device adapted to release the fastening pin from the seat. More in detail, the mechanism comprises at least one elastic countering member for the fastening pin
Data Source
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AI summary
Protecting helmet (1) comprising a rigid outer shell (2), a front opening (3) in said rigid shell for the face of a user, a protective visor (4) at least rotatable between a lowered position intercepting, at least partially, the front opening (3) and a raised position disengaged from said front opening (3), and a raising/lowering mechanism (10) of the protective visor (4), the raising/lowering mechanism (10) comprising: at least one base member (12), movably or integrally constrained to, or made in a single piece with, the outer shell (2) and arranged in a side position with respect to said front opening (3); at least one fastening pin (41) constrained in a respective opening (4a) of the protective visor (4); wherein said base member comprises a seat (130) adapted to rotatably and reversibly house said fastening pin; wherein said seat (130) of said base member (12) comprises at least one elastic countering member (131) for said fastening pin (41); wherein said base member (12) comprises an unlocking device (16) configured to act on the elastic countering member (131) to release the fastening pin (41) from the seat (130).