Helmet Cover Plate Knockout Assembly Mechanism
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Solution Overview
Problem
Existing protective helmets with cover plates require additional parts and complex mechanisms for easy removal, which can lead to the cover plate popping out and creating hazards or allowing fumes and light to enter the helmet.
Innovation Solution
A step-shaped actuator is integrated into the helmet's knock out assembly, allowing the cover plate to be moved a predetermined distance away from the helmet for easy removal without popping out, and a light blocking cover is used to prevent fumes and light from entering.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a complex mechanism with additional parts is used for cover plate removal, then ease of operation is improved, but device complexity increases
Solution Approach 1:
The invention extracts the essential function of cover plate removal by providing a knock-out assembly that creates a gap between the cover plate and helmet shell, allowing fingers to easily grasp and remove the cover plate without requiring complex mechanical mechanisms. This simplifies the removal mechanism while maintaining ease of operation.
Solution Approach 2:
The knock-out assembly is divided into functional segments including a push-button actuator, a lever arm, and a knock-out plate, where each segment performs a specific function in the sequence of creating the removal gap. This segmentation allows for simple individual components that work together to achieve the overall removal function without increasing overall device complexity.
2Ease of operation
If the cover plate is allowed to pop out completely, then ease of operation is improved, but object-generated harmful factors increase
Solution Approach 1:
The knock-out assembly performs a preliminary action by creating a controlled gap between the cover plate and helmet shell before complete removal. This preliminary gap creation allows the cover plate to be safely grasped and removed in a controlled manner, preventing hazardous ejection while maintaining ease of operation.
Solution Approach 2:
The knock-out plate acts as an intermediary element between the push-button actuator and the cover plate. It translates the pushing motion into a controlled separation that creates a safety gap, mediating the removal process to prevent hazardous ejection while still enabling easy removal.
3Reliability
If additional parts are used for cover plate securing, then reliability is improved, but device complexity increases
Solution Approach 1:
The invention merges the retention and removal functions into a single integrated knock-out assembly that works with the existing cover plate and helmet shell structure. This merging approach provides reliable retention during normal use while enabling controlled removal, avoiding the need for separate additional securing parts that would increase device complexity.
Data Source
AI summary
A protective helmet having a cover plate over a front vision area and a cover plate knock out assembly for moving the cover plate a predetermined distance away from the helmet so that a finger of a user can get behind the cover plate to enable its removal from the front vision area of the helmet. The cover plate knock out assembly comprises a step-shaped actuator element and a light blocking cover. The upper portion of the step-shaped actuator pushes the cover plate away from the helmet when the lower portion of the step-shaped actuator is pressed. The cover plate made of clear plastic includes a spring tendency when slightly compressed when attached to the helmet thereby pushing the upper portion of the step-shaped actuator into a resting position in the helmet.