Open Face Helmet Cheek Pad Slit Engagement Mechanism
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Solution Overview
Problem
Existing open face helmets with removable cheek pads require a base member that increases thickness and reduces cushioning, and the attachment/removal process is time-consuming due to the need for engaging projections and holes.
Innovation Solution
The helmet features a shock-absorbing liner with a removable cheek pad that uses a fixing member with a slit for easy engagement and disengagement, allowing face-to-face contact with the shock-absorbing liner for secure attachment and removal without a base member, reducing weight and simplifying the process.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a base member is used to attach the cheek pad, then the cheek pad can be securely fixed, but the helmet weight increases and cushioning is reduced
Solution Approach 1:
The patent removes the base member from the attachment system and integrates the cheek pad directly with the helmet shell through a simplified engaging body mechanism. This extraction of the unnecessary base member reduces weight while maintaining secure attachment through the engaging body's direct engagement with the helmet shell's engaging hole.
2Reliability
If multiple projections and engaging holes are used to attach the cheek pad, then the cheek pad can be securely fixed, but the attachment and removal process becomes time-consuming
Solution Approach 1:
The patent divides the attachment function into two separate components: the engaging body attached to the cheek pad and the corresponding engaging hole in the helmet shell. This segmentation allows for a simpler, single-point engagement mechanism rather than multiple projections, enabling quick attachment and removal while maintaining security.
3Reliability
If a base member is used to attach the cheek pad, then the cheek pad can be securely fixed, but the cushioning member thickness is reduced
Solution Approach 1:
By removing the base member from the assembly, the patent eliminates the space that would otherwise be occupied by this component. This allows the cushioning member to extend further toward the cheek pad, increasing its effective thickness and improving comfort without compromising attachment security through the engaging body mechanism.
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
This configuration enables easy attachment and removal of the cheek pad, maintaining cushioning and shape-retaining properties while reducing the helmet's weight by eliminating the base member and streamlining the attachment process.
Implementation Method 1
a shock-absorbing member (30) having shape-retaining properties and shock-absorbing properties
Implementation Method 2
a cushioning member (31) stacked on the shock-absorbing member (30) in a thickness direction
Data Source
AI summary
An open face helmet includes an outer shell and a shock-absorbing liner, as well as a fixing member on the front side of the inner surface of the right side of the outer shell for the attachment of a removable cheek pad. The cheek pad includes a shock-absorbing member and a cushioning member stacked thereon, as well as an engaging body to be removably engaged with the fixing member. The fixing member is opposed to the front edge of the shock-absorbing liner, having a slit to be engaged with or disengaged from the engaging body in a front-back direction. The cheek pad is supported on the inner surface of the right side of the helmet shell by an engagement of the engaging body with the slit and a face-to-face contact of the back edge of the cheek pad with the front edge of the shock-absorbing liner.