Adjustable Helmet Lining with Interlayer Pockets
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Solution Overview
Problem
Existing safety helmet inner linings fail to provide a perfect fit for various head shapes and dimensions, leading to discomfort and reduced safety due to interspaces between the helmet and the user's head, which can exacerbate the risk of injury during accidents.
Innovation Solution
The safety helmet inner lining features interlayer pockets at preset positions that can accommodate cushiony pads of varying thickness, ensuring a snug fit by filling the gaps between the user's head and the helmet, thereby enhancing comfort and safety.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a fixed-size inner lining is used to match standard helmet specifications, then the manufacturing process is simple, but it cannot accommodate various head shapes and dimensions resulting in poor fit
Solution Approach 1:
The inner lining is divided into multiple detachable cushioning units with different thicknesses that can be selectively combined. Each unit corresponds to a specific head region, allowing users to assemble the lining to match their unique head shape and size requirements.
Solution Approach 2:
The inner lining transitions from a fixed structure to a dynamic, adjustable configuration where users can modify the thickness and positioning of cushioning units based on their head dimensions, enabling the lining to adapt to various head shapes while maintaining a relatively simple overall design.
2Manufacturing precision
If the inner lining is made adjustable with multiple thickness options, then it achieves a perfect fit for different head dimensions, but the device complexity increases
Solution Approach 1:
The cushioning system is segmented into discrete units of varying thickness that can be independently selected and positioned. This segmentation allows for precise adjustment of the inner lining to match specific head dimensions while keeping each individual component simple in design.
Solution Approach 2:
The inner lining achieves precise fit by allowing users to change the thickness parameter of the cushioning units. Different thickness options are provided to accommodate various head dimensions, enabling precise adjustment without requiring complex structural modifications to the overall lining design.
3Reliability
If cushioning pads are added to fill interspaces, then comfort and safety are improved, but the device complexity and number of components increase
Solution Approach 1:
The cushioning pads are merged with the inner lining structure, where the pads serve dual functions: providing comfort through cushioning and ensuring safety by eliminating dangerous interspaces between the helmet and head. This integration reduces the perception of additional complexity while delivering both comfort and safety benefits.
Solution Approach 2:
The cushioning pads are pre-positioned within the inner lining at predetermined locations that correspond to common head shapes and sizes. This beforehand cushioning arrangement ensures safety and comfort are built into the design before use, reducing the need for complex adjustments or additional components during actual use.
Data Source
AI summary
The present invention provides a safety helmet inner lining adjustable for suitable wearing, consisting of: a covering body, which has an inner side surface that contacts a user's head and an outer side surface relative to the inner side surface; at least one interlayer pocket, which is disposed on the outer side surface of the covering body; and at least one cushiony pad, which is suitable for placement inside the interlayer pocket. A user is able to place the cushiony pads of suitable thickness into the interlayer pockets at preset positions according to the user's to head shape and dimensions. The inner lining is then put onto the head and a safety helmet put on top. The cushiony pads enable correcting the interspace between the user's head and the safety helmet, thereby allowing suitable and perfect fitting of the safety helmet that ensures safety of the wearer.