Helmet Neck Pad Attachment Structure With Elastic Fitting Plate
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Solution Overview
Problem
Existing neck pad attachment structures for helmets require a significant pulling force for removal due to resistance caused by contact and deformation between the fitting and engaging parts, making it difficult to achieve a positive attached state while ensuring easy removal.
Innovation Solution
A neck pad attachment structure with an inserting plate that can move along the helmet's putting-on or taking-off opening, featuring a resilient fitting part that rides over an engaging part upon insertion, and a biasing mechanism to restrict motion and enhance holding, allowing for easy removal by moving the inserting plate in a peripheral direction.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If the fitting part and engaging part are made rigid to ensure secure attachment, then the attachment strength is improved, but the removal force required increases significantly
Solution Approach 1:
The fitting part is designed with elastic deformation capability, changing its mechanical parameter from rigid to flexible. This allows the fitting part to deform elastically during engagement and disengagement, reducing the removal force while maintaining secure attachment during use
Solution Approach 2:
The attachment structure transitions from a static rigid connection to a dynamic system where the fitting part can elastically deform. This dynamic behavior allows the connection to adapt during both attachment and removal operations, solving the contradiction between secure attachment and easy removal
2Reliability
If the fitting part and engaging part have large contact area to prevent detachment, then the reliability of attachment is improved, but the resistance during removal increases
Solution Approach 1:
The contact interface is designed to utilize elastic deformation parameters, where the fitting part's material properties and geometric dimensions are optimized to provide sufficient contact area for reliable attachment while allowing controlled deformation during removal to reduce resistance
3Stability of the object's composition
If the inserting plate is restricted in motion to ensure secure positioning, then the positional stability is improved, but the ease of removal deteriorates
Solution Approach 1:
The inserting plate is given controlled mobility through the elastic fitting part. During normal use, the elastic deformation provides positional stability, while during removal, the same elastic property allows the plate to move freely once the engagement force is released, improving ease of removal
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
Enables secure attachment with reduced resistance and easy removal of the neck pad using a smaller force, ensuring comfort and stability during helmet use.
Implementation Method 1
the fitting part and/or the engaging part has resiliency acted in a thickness direction of the helmet and when the inserting plate is inserted into the clearance in the case that the neck pad is attached, the fitting part rides over the engaging part under resiliency, and upon completion of insertion, the fitting part is resiliently fitted to the engaging part
Data Source
AI summary
A neck pad is pulled out with a smaller force in an easy manner while assuring a positive characteristic of attached state of the neck pad.An inserting plate that can be moved in a clearance S along a peripheral direction of a putting-on or taking-off opening is provided with a fitting part and in turn the fitting part is provided with an engaging part that is resiliently fitted in opposition to a pulling-out direction of the inserting plate through insertion of the inserting plate into the clearance S, the fitting part moves to a non-opposite position against the engaging part as the inserting plate moves in a peripheral direction to cause the fitted state of the engaging part to be released, thereby the inserting plate can be pulled out.