Composite Helmet Shroud Assembly for Lightweight Imaging Mounts
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Solution Overview
Problem
Existing helmet shrouds lack an efficient and lightweight design for securely mounting electronic or optoelectronic imaging devices, often compromising on strength and adaptability to various helmet configurations.
Innovation Solution
A shroud assembly comprising a polymer frame overmolded onto a metal or metal alloy insert, forming a robust interface with exposed recesses for removable attachment of accessory mounts, providing enhanced strength, flexibility, and adaptability to helmet designs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If traditional solid metal shrouds are used for mounting accessory devices, then strength and structural integrity are improved, but weight increases significantly
Solution Approach 1:
The shroud assembly uses a composite structure combining polymer frame material with metal reinforcement inserts. The polymer frame provides the basic structural form and light weight, while the metal inserts localized at the accessory mounting interface provide the necessary strength and rigidity for secure device attachment, achieving over 25% weight reduction compared to solid metal shrouds while maintaining mounting capability
Solution Approach 2:
The shroud is divided into distinct functional zones: the polymer frame provides overall structural support and light weight, while separate metal inserts are positioned specifically at the accessory mounting interface where high strength is required. This segmentation allows each material to be used only where its properties are most beneficial, optimizing the strength-to-weight ratio
2Stability of the object's composition
If accessory mounts are rigidly fixed to the shroud, then structural stability is improved, but adaptability to various helmet configurations decreases
Solution Approach 1:
The accessory mounting interface incorporates movable and adjustable elements that allow the mount to be positioned and oriented according to different helmet shapes and sizes. The mounting mechanism can be adjusted to accommodate various helmet configurations while maintaining stable attachment of the accessory device, enabling both adaptability and stability
3Ease of manufacture
If the shroud design is simplified for ease of manufacture, then manufacturing cost decreases, but mounting precision and security deteriorate
Solution Approach 1:
The shroud is divided into distinct functional zones: the polymer frame provides the basic structural form that is easy to manufacture through injection molding, while separate metal inserts are positioned specifically at the accessory mounting interface where high precision is required. This segmentation allows the majority of the shroud to be produced simply, while precision-critical areas receive enhanced manufacturing attention only where needed
Solution Approach 2:
The composite construction allows the polymer frame to be manufactured using efficient molding processes for cost-effectiveness, while the metal inserts can be precision-machined or formed separately and then integrated. This approach enables manufacturing precision to be applied selectively to critical mounting surfaces without requiring the entire shroud to be manufactured with high precision, balancing manufacturing ease and precision
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 shroud assembly achieves a significant weight reduction of over 25% compared to prior art, while ensuring secure and adaptable mounting of imaging devices, minimizing axial rotation, and conforming to diverse helmet patterns.
Implementation Method 1
The polymer frame is overmolded onto the insert such that the polymer frame and the insert cooperate to form an interface for the removable attachment of an accessory mount
Data Source
AI summary
The shroud assembly is configured for attachment to the front of a helmet or other headgear. The shroud assembly includes an interface for the removable attachment of an accessory mount used to couple an electronic or optoelectronic imaging device to the headgear. An example shroud assembly comprises a polymer frame and an insert formed of a metal or metal alloy. The polymer frame is overmolded onto the insert such that the polymer frame and the insert cooperate to form an interface for the removable attachment of an accessory mount. The interface includes an upper recess and a lower recess. The upper recess is configured to act as a bearing surface for an engaging latch member of the accessory mount, and the lower recess is configured to act as a bearing surface for another engaging latch member of the accessory mount.